{"id":1549,"date":"2023-02-22T00:16:39","date_gmt":"2023-02-22T00:16:39","guid":{"rendered":"https:\/\/scivetim.eu\/?page_id=1549"},"modified":"2024-11-21T15:22:09","modified_gmt":"2024-11-21T15:22:09","slug":"cd4-th-lymfocyt","status":"publish","type":"page","link":"https:\/\/proboostnow.eu\/en_us\/cd4-th-lymfocyt\/","title":{"rendered":"CD4+ Th Lymfocyt"},"content":{"rendered":"<div id=\"text-949348119\" class=\"text\">\n\t\t\n\n<h1>Thymic Protein A aktivuje maturaci CD4+ Th Lymfocyt\u016f a jejich kone\u010dnou diferenciaci zejm\u00e9na sm\u011brem k Th1<\/h1>\n\t\t\n<style>\n#text-949348119 {\n  text-align: center;\n  color: rgb(0,0,0);\n}\n#text-949348119 > * {\n  color: rgb(0,0,0);\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"gap-642021297\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-642021297 {\n  padding-top: 30px;\n}\n<\/style>\n\t<\/div>\n\t\n\n<div class=\"row\"  id=\"row-752425862\">\n\n\n\t<div id=\"col-2065363081\" class=\"col medium-6 small-12 large-6\"  >\n\t\t\t\t<div class=\"col-inner text-center\"  >\n\t\t\t\n\t\t\t\n\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_989885989\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner image-cover dark\" style=\"padding-top:100%;\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1020\" height=\"765\" src=\"https:\/\/proboostnow.eu\/wp-content\/uploads\/2023\/02\/1280px-Human_B_Lymphocyte_29196367446-1024x768.jpg\" class=\"attachment-large size-large\" alt=\"lymfocyt\" srcset=\"https:\/\/proboostnow.eu\/wp-content\/uploads\/2023\/02\/1280px-Human_B_Lymphocyte_29196367446-1024x768.jpg 1024w, https:\/\/proboostnow.eu\/wp-content\/uploads\/2023\/02\/1280px-Human_B_Lymphocyte_29196367446-510x383.jpg 510w, https:\/\/proboostnow.eu\/wp-content\/uploads\/2023\/02\/1280px-Human_B_Lymphocyte_29196367446-300x225.jpg 300w, https:\/\/proboostnow.eu\/wp-content\/uploads\/2023\/02\/1280px-Human_B_Lymphocyte_29196367446-768x576.jpg 768w, https:\/\/proboostnow.eu\/wp-content\/uploads\/2023\/02\/1280px-Human_B_Lymphocyte_29196367446-16x12.jpg 16w, https:\/\/proboostnow.eu\/wp-content\/uploads\/2023\/02\/1280px-Human_B_Lymphocyte_29196367446-500x375.jpg 500w, https:\/\/proboostnow.eu\/wp-content\/uploads\/2023\/02\/1280px-Human_B_Lymphocyte_29196367446-800x600.jpg 800w, https:\/\/proboostnow.eu\/wp-content\/uploads\/2023\/02\/1280px-Human_B_Lymphocyte_29196367446.jpg 1280w\" sizes=\"auto, (max-width: 1020px) 100vw, 1020px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_989885989 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\t<div id=\"col-1571274360\" class=\"col medium-6 small-12 large-6\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n\t<div id=\"text-2859896243\" class=\"text\">\n\t\t\n\n<h5 style=\"text-align: center;\">CD4+ Th lymfocyt je pravd\u011bpodobn\u011b nejv\u00fdznamn\u011bj\u0161\u00ed koordina\u010dn\u00ed a regula\u010dn\u00ed element v procesu adaptivn\u00ed specifick\u00e9 imunitn\u00ed reakce na patogeny a aberantn\u00ed procesy v organismu.\u00a0<\/h5>\n<p>\u00a0<\/p>\n<p>Nezral\u00fd lymfocyt vznik\u00e1 v kostn\u00ed d\u0159eni ze spole\u010dn\u00e9 lymfoidn\u00ed progenitorov\u00e9 bu\u0148ky a odsud putuje do brzl\u00edku. Prom\u011bnou na zralou, ale zat\u00edm neaktivn\u00ed bu\u0148ku zde projde asi jedno procento z celkov\u00e9ho mno\u017estv\u00ed lymfocyt\u016f, ostatn\u00ed hynou. Selekci p\u0159e\u017eij\u00ed pouze bu\u0148ky, kter\u00e9 nereaguj\u00ed na to, co je t\u011blu vlastn\u00ed a nau\u010d\u00ed se efektivn\u011b odstranit to, co je ciz\u00ed a nebezpe\u010dn\u00e9.\u00a0<\/p>\n<p>\u00a0<\/p>\n<p>Zral\u00e9, ale neaktivn\u00ed tzv. naivn\u00ed lymfocyty \u010dekaj\u00ed v sekund\u00e1rn\u00edch lymfatick\u00fdch org\u00e1nech na podn\u011bt k aktivaci. Teprve pak m\u016f\u017ee b\u00fdt jejich prost\u0159ednictv\u00edm zah\u00e1jena extr\u00e9mn\u011b slo\u017eit\u00e1, siln\u00e1, p\u0159esn\u00e1 a \u00fa\u010dinn\u00e1 kask\u00e1da imunitn\u00edch d\u011bj\u016f, kter\u00e9 vedou k uzdraven\u00ed.<\/p>\n<p>\u00a0<\/p>\n\t\t\n<style>\n#text-2859896243 {\n  color: rgb(0,0,0);\n}\n#text-2859896243 > * {\n  color: rgb(0,0,0);\n}\n<\/style>\n\t<\/div>\n\t\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n<\/div>\n\t<div id=\"gap-722332213\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-722332213 {\n  padding-top: 30px;\n}\n<\/style>\n\t<\/div>\n\t\n\n<div class=\"row align-center\"  id=\"row-859497730\">\n\n\n\t<div id=\"col-3327773\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner text-center\"  >\n\t\t\t\n\t\t\t\n\n<span class=\"scroll-to\" data-label=\"Scroll to: #change-this\" data-bullet=\"true\" data-link=\"#change-this\" data-title=\"Change this\" ><a name=\"change-this\"><\/a><\/span>\n\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n<\/div>\n\n  <div class=\"banner has-hover has-parallax\" id=\"banner-106600164\">\n          <div class=\"banner-inner fill\">\n        <div class=\"banner-bg fill\" data-parallax=\"-10\" data-parallax-container=\".banner\" data-parallax-background>\n            <img loading=\"lazy\" decoding=\"async\" width=\"808\" height=\"1024\" src=\"https:\/\/proboostnow.eu\/wp-content\/uploads\/2023\/02\/bacteria-g694f174ba_1280-808x1024.jpg\" class=\"bg attachment-large size-large\" alt=\"bacteria CD4+ Probooost\" \/>                        <div class=\"overlay\"><\/div>            \n                    <\/div>\n\t\t\n        <div class=\"banner-layers container\">\n            <div class=\"fill banner-link\"><\/div>            \n\n   <div id=\"text-box-1674934742\" class=\"text-box banner-layer x50 md-x50 lg-x50 y50 md-y50 lg-y50 res-text\">\n                                <div class=\"text-box-content text dark\">\n              \n              <div class=\"text-inner text-center\">\n                  \n\n<div class=\"is-divider divider clearfix\" style=\"max-width:800px;background-color:rgb(182, 185, 198);\"><\/div>\n\n\t<div id=\"gap-1771989770\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-1771989770 {\n  padding-top: 30px;\n}\n<\/style>\n\t<\/div>\n\t\n\n<p>T lymfocyty dozr\u00e1vaj\u00ed v brzl\u00edku. Zde prob\u00edh\u00e1 tak\u00e9 jejich selekce na z\u00e1klad\u011b jejich reaktivity. Chybn\u00e1 reakce lymfocytu m\u00e1 za n\u00e1sledek jeho likvidaci.\u00a0\u00a0<\/p>\n<a href=\"\/en_us\/t-lymfocyty-prochazeji-selekci-a-dozravanim-v-brzliku-2\/\" class=\"button white is-outline\"  style=\"border-radius:10px;\">\n\t\t<span>T lymfocyty proch\u00e1zej\u00ed selekc\u00ed  a dozr\u00e1v\u00e1n\u00edm v Brzl\u00edku<\/span>\n\t<\/a>\n\n\n\t<div id=\"gap-694929744\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-694929744 {\n  padding-top: 30px;\n}\n<\/style>\n\t<\/div>\n\t\n\n<div class=\"is-divider divider clearfix\" style=\"max-width:800px;background-color:rgb(182, 185, 198);\"><\/div>\n\n\t<div id=\"gap-1683048333\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-1683048333 {\n  padding-top: 30px;\n}\n<\/style>\n\t<\/div>\n\t\n\n<p>Zral\u00e9 diferencovan\u00e9 lymfocyty vycestuj\u00ed z brzl\u00edku do lymfatick\u00e9ho syst\u00e9mu a vy\u010dk\u00e1vaj\u00ed na podn\u011bt, kter\u00fd konkr\u00e9tn\u00edm zp\u016fsobem spust\u00ed aktiva\u010dn\u00ed proces, j\u00edm\u017e dojde k zah\u00e1jen\u00ed mnohovrstevn\u00e9 specifick\u00e9 imunitn\u00ed reakce.<\/p>\n<a href=\"\/en_us\/zrale-diferencovane-lymfocyty-cekaji-na-aktivacni-signal\/\" class=\"button white is-outline\"  style=\"border-radius:10px;\">\n\t\t<span>Zral\u00e9 diferencovan\u00e9 Lymfocyty \u010dekaj\u00ed na aktiva\u010dn\u00ed sign\u00e1l<\/span>\n\t<\/a>\n\n\n\t<div id=\"gap-1261095024\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-1261095024 {\n  padding-top: 30px;\n}\n<\/style>\n\t<\/div>\n\t\n\n<div class=\"is-divider divider clearfix\" style=\"max-width:800px;background-color:rgb(182, 185, 198);\"><\/div>\n\n\t<div id=\"gap-682001212\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-682001212 {\n  padding-top: 30px;\n}\n<\/style>\n\t<\/div>\n\t\n\n<p>Po aktivaci CD4+ Th lymfocytu se rozvine cel\u00e1 paleta slo\u017eit\u00fdch bun\u011b\u010dn\u00fdch i molekul\u00e1rn\u00edch interakc\u00ed, kter\u00e9 vedou k p\u0159esn\u011b vyv\u00e1\u017een\u00e9 stimulaci prosp\u011b\u0161n\u00fdch, ale i tlumen\u00ed ne\u017e\u00e1douc\u00edch specifick\u00fdch i nespecifick\u00fdch imunitn\u00edch proces\u016f.<\/p>\n<p>Aktivovan\u00fd CD4+Th lymfocyt za\u010dne klonovat s\u00e1m sebe, aby tak zes\u00edlil informa\u010dn\u00ed a regula\u010dn\u00ed signalizaci, kterou vykon\u00e1v\u00e1 pomoc\u00ed bun\u011b\u010dn\u00fdch a molekul\u00e1rn\u00edch interakc\u00ed. Jeho prost\u0159ednictv\u00edm doch\u00e1z\u00ed k aktivaci, stimulaci a mno\u017een\u00ed ostatn\u00edch efektorov\u00fdch lymfoidn\u00edch bun\u011bk, nap\u0159\u00edklad CD8+cytotoxick\u00fdch lymfocyt\u016f, B lymfocyt\u016f, NK bun\u011bk.. ale i bun\u011bk myeloidn\u00edho p\u016fvodu, \u010derven\u00fdch krvinek a krevn\u00edch desti\u010dek.\u00a0\u00a0<\/p>\n<a href=\"\/en_us\/regulacni-uloha-aktivovaneho-cd4-th-lymfocytu-v-prubehu-imunitni-reakce-na-informaci-o-nebezpeci\/\" class=\"button white is-outline\"  style=\"border-radius:10px;\">\n\t\t<span>aktivovan\u00fd CD4+ lymfocyt reguluje imunitn\u00ed odpov\u011b\u010f<\/span>\n\t<\/a>\n\n\n<div class=\"is-divider divider clearfix\" style=\"max-width:800px;background-color:rgb(182, 185, 198);\"><\/div>\n\n\t<div id=\"gap-1043201565\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-1043201565 {\n  padding-top: 30px;\n}\n<\/style>\n\t<\/div>\n\t\n\n<p>Po setk\u00e1n\u00ed naivn\u00edho T lymfocytu s antigenem doch\u00e1z\u00ed k aktivaci a proliferaci do mnoha klon\u016f. N\u011bkter\u00e9 z t\u011bchto bun\u011bk se st\u00e1vaj\u00ed efektorov\u00fdmi lymfocyty a ihned pln\u00ed svoji prim\u00e1rn\u00ed funkci, tedy ni\u010den\u00ed patogen\u016f v t\u011ble. Men\u0161ina z t\u011bchto klon\u016f se pak st\u00e1v\u00e1 pam\u011b\u0165ov\u00fdmi lymfocyty, kter\u00e9 jsou dormantn\u00ed a\u017e do sv\u00e9 reaktivace op\u011btovn\u00fdm setk\u00e1n\u00edm s antigenem.<\/p>\n<a href=\"https:\/\/cs.wikipedia.org\/wiki\/Pam%C4%9B%C5%A5ov%C3%A9_T_lymfocyty\" target=\"_blank\" class=\"button white is-outline\" rel=\"noopener\"  style=\"border-radius:10px;\">\n\t\t<span>Pam\u011b\u0165ov\u00e9 T lymfocyty<\/span>\n\t<\/a>\n\n\n<div class=\"is-divider divider clearfix\" style=\"max-width:800px;background-color:rgb(182, 185, 198);\"><\/div>\n\n\n              <\/div>\n           <\/div>\n                            \n<style>\n#text-box-1674934742 {\n  width: 86%;\n}\n#text-box-1674934742 .text-box-content {\n  font-size: 100%;\n}\n<\/style>\n    <\/div>\n \n\n        <\/div>\n      <\/div>\n\n            \n<style>\n#banner-106600164 {\n  padding-top: 150%;\n}\n#banner-106600164 .overlay {\n  background-color: rgba(0,0,0,.5);\n}\n<\/style>\n  <\/div>\n\n\n\t<div id=\"gap-957705167\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-957705167 {\n  padding-top: 30px;\n}\n<\/style>\n\t<\/div>\n\t\n\n\t<div id=\"gap-1119755123\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-1119755123 {\n  padding-top: 30px;\n}\n<\/style>\n\t<\/div>\n\t\n\n\t<div id=\"gap-490344676\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-490344676 {\n  padding-top: 30px;\n}\n<\/style>\n\t<\/div>\n\t\n\n<div class=\"row\"  id=\"row-422483818\">\n\n\n\t<div id=\"col-374818387\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n<div class=\"row\"  id=\"row-1040987918\">\n\n\n\t<div id=\"col-1851697639\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n<h3 style=\"text-align: center;\">Hlavn\u00ed \u00falohou TPA je diferencia\u010dn\u00ed sign\u00e1l thymocyt\u016fm, aby zah\u00e1jily matura\u010dn\u00ed p\u0159em\u011bnu na funk\u010dn\u00ed CD4+ Th0 lymfocyty.<\/h3>\n<h3 style=\"text-align: center;\">Schema proces\u016f, kter\u00e9 jsou p\u0159\u00edmo z\u00e1visl\u00e9 a limitovan\u00e9 nab\u00eddkou dostate\u010dn\u00e9ho po\u010dtu diferencovan\u00fdch naivn\u00edch CD4+Th0 lymfocyt\u016f:<\/h3>\n<p>\u00a0 \u00a0 \u00a0 Krom\u011b diferencia\u010dn\u00edho sign\u00e1lu k maturaci v n\u00e1vaznosti na na okoln\u00ed signalizaci se pod\u00edl\u00ed TPA p\u0159edev\u0161\u00edm na diferenciaci sm\u011brem k Th1. Efektorov\u00e9 Th1 lymfocyty vyvol\u00e1vaj\u00ed bun\u011b\u010dn\u00fd cytotoxick\u00fd typ imunitn\u00ed odpov\u011bdi. Za stimulaci tvorby protil\u00e1tek odpov\u00eddaj\u00ed Th2 lymfocyty. Zp\u011btn\u00e1 kontrola p\u0159ed p\u0159ehnanou aktivitou lymfocyt\u016f a suprese imunitn\u00edch reakc\u00ed je p\u0159edstavov\u00e1na Treg lymfocyty a z\u00e1n\u011btliv\u00fd typ reakce je prezentov\u00e1n Th17, Th22 a Th9 lymfocyty.<\/p>\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n<\/div>\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_899361506\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner box-shadow-5 dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"977\" height=\"747\" src=\"https:\/\/proboostnow.eu\/wp-content\/uploads\/2023\/07\/Screenshot-2023-06-29-154501.png\" class=\"attachment-large size-large\" alt=\"Th0 lymfocyt\" srcset=\"https:\/\/proboostnow.eu\/wp-content\/uploads\/2023\/07\/Screenshot-2023-06-29-154501.png 977w, https:\/\/proboostnow.eu\/wp-content\/uploads\/2023\/07\/Screenshot-2023-06-29-154501-300x229.png 300w, https:\/\/proboostnow.eu\/wp-content\/uploads\/2023\/07\/Screenshot-2023-06-29-154501-768x587.png 768w, https:\/\/proboostnow.eu\/wp-content\/uploads\/2023\/07\/Screenshot-2023-06-29-154501-16x12.png 16w, https:\/\/proboostnow.eu\/wp-content\/uploads\/2023\/07\/Screenshot-2023-06-29-154501-510x390.png 510w\" sizes=\"auto, (max-width: 977px) 100vw, 977px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_899361506 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\n<div class=\"row\"  id=\"row-774215264\">\n\n\n\t<div id=\"col-1251201961\" class=\"col medium-4 small-12 large-4\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\t<div id=\"col-1755696895\" class=\"col medium-4 small-12 large-4\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\t<div id=\"col-1538922515\" class=\"col medium-4 small-12 large-4\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n\t<div id=\"text-2593792645\" class=\"text\">\n\t\t\n\n<p>I. Fellnerov\u00e1, A. Fellnerov\u00e1, P\u0159F UPOL, Pracovn\u00ed texty: T lymfocyty a bun\u011b\u010dn\u00e1 imunita, 2015<\/p>\n\t\t\n<style>\n#text-2593792645 {\n  font-size: 0.75rem;\n  color: rgb(0, 0, 0);\n}\n#text-2593792645 > * {\n  color: rgb(0, 0, 0);\n}\n<\/style>\n\t<\/div>\n\t\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n<\/div>\n<div class=\"row\"  id=\"row-1337615815\">\n\n\n\t<div id=\"col-170746234\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n<\/div>\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n<\/div>\n\t<div id=\"gap-1760331573\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-1760331573 {\n  padding-top: 30px;\n}\n<\/style>\n\t<\/div>\n\t\n\n\t<div id=\"gap-298857986\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-298857986 {\n  padding-top: 30px;\n}\n<\/style>\n\t<\/div>\n\t\n\n\t<div id=\"text-2100974165\" class=\"text\">\n\t\t\n\n<h3 class=\"uppercase\">Zr\u00e1n\u00ed T lymfocyt\u016f prob\u00edh\u00e1 v brzl\u00edku, zde doch\u00e1z\u00ed k pozitivn\u00ed i negativn\u00ed selekci, p\u0159i kter\u00e9 zahyne a\u017e 99% chybn\u011b reaguj\u00edc\u00edch lymfocyt\u016f<\/h3>\n\t\t\n<style>\n#text-2100974165 {\n  text-align: center;\n  color: rgb(255,255,255);\n}\n#text-2100974165 > * {\n  color: rgb(255,255,255);\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"text-3628928559\" class=\"text\">\n\t\t\n\n<h1>Vznik krevn\u00edch element\u016f &#8211; hematopo\u00e9za<\/h1>\n\t\t\n<style>\n#text-3628928559 {\n  text-align: center;\n  color: rgb(0,0,0);\n}\n#text-3628928559 > * {\n  color: rgb(0,0,0);\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"gap-613411142\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-613411142 {\n  padding-top: 30px;\n}\n<\/style>\n\t<\/div>\n\t\n\n\t<div id=\"gap-486332141\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-486332141 {\n  padding-top: 30px;\n}\n<\/style>\n\t<\/div>\n\t\n\n\t<div id=\"text-3354369569\" class=\"text\">\n\t\t\n\n<p>T lymfocyty, B lymfocyty a NK bu\u0148ky (Natural killer cells) vznikaj\u00ed v kostn\u00ed d\u0159eni ze spole\u010dn\u00e9 lymfoidn\u00ed bu\u0148ky.<\/p>\n\t\t\n<style>\n#text-3354369569 {\n  text-align: center;\n  color: rgb(0,0,0);\n}\n#text-3354369569 > * {\n  color: rgb(0,0,0);\n}\n<\/style>\n\t<\/div>\n\t\n<div class=\"row\"  id=\"row-2120955480\">\n\n\n\t<div id=\"col-1622899749\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner text-center\"  >\n\t\t\t\n\t\t\t\n\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_1188318477\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner box-shadow-5 dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1020\" height=\"680\" src=\"https:\/\/proboostnow.eu\/wp-content\/uploads\/2023\/02\/Hematopoiesis_simple-1024x683.png\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/proboostnow.eu\/wp-content\/uploads\/2023\/02\/Hematopoiesis_simple-1024x683.png 1024w, https:\/\/proboostnow.eu\/wp-content\/uploads\/2023\/02\/Hematopoiesis_simple-510x340.png 510w, https:\/\/proboostnow.eu\/wp-content\/uploads\/2023\/02\/Hematopoiesis_simple-300x200.png 300w, https:\/\/proboostnow.eu\/wp-content\/uploads\/2023\/02\/Hematopoiesis_simple-768x512.png 768w, https:\/\/proboostnow.eu\/wp-content\/uploads\/2023\/02\/Hematopoiesis_simple-1536x1024.png 1536w, https:\/\/proboostnow.eu\/wp-content\/uploads\/2023\/02\/Hematopoiesis_simple-18x12.png 18w, https:\/\/proboostnow.eu\/wp-content\/uploads\/2023\/02\/Hematopoiesis_simple-500x333.png 500w, https:\/\/proboostnow.eu\/wp-content\/uploads\/2023\/02\/Hematopoiesis_simple-800x533.png 800w, https:\/\/proboostnow.eu\/wp-content\/uploads\/2023\/02\/Hematopoiesis_simple-1280x853.png 1280w, https:\/\/proboostnow.eu\/wp-content\/uploads\/2023\/02\/Hematopoiesis_simple.png 1800w\" sizes=\"auto, (max-width: 1020px) 100vw, 1020px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_1188318477 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\n\t<div id=\"text-2498443213\" class=\"text\">\n\t\t\n\n<p>By A. Rad and M. H\u00e4ggstr\u00f6m. CC-BY-SA 3.0 license<\/p>\n\t\t\n<style>\n#text-2498443213 {\n  font-size: 0.75rem;\n  text-align: right;\n}\n<\/style>\n\t<\/div>\n\t\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n<\/div>\n\t<div id=\"gap-1893867403\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-1893867403 {\n  padding-top: 30px;\n}\n<\/style>\n\t<\/div>\n\t\n\n\t<div id=\"gap-1821665620\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-1821665620 {\n  padding-top: 30px;\n}\n<\/style>\n\t<\/div>\n\t\n\n\t<div id=\"gap-1833919972\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-1833919972 {\n  padding-top: 30px;\n}\n<\/style>\n\t<\/div>\n\t\n\n\t<div id=\"gap-1459666353\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-1459666353 {\n  padding-top: 30px;\n}\n<\/style>\n\t<\/div>\n\t\n\n\t<div id=\"text-2579171573\" class=\"text\">\n\t\t\n\n<h1 id=\"firstHeading\" class=\"firstHeading\" lang=\"\" style=\"text-align: center;\">Cytokinov\u00e1 signalizace<\/h1>\n<p>\u00a0<\/p>\n<p style=\"text-align: center;\">Schema n\u00e1zorn\u011b popisuje z\u00e1kladn\u00ed signaliza\u010dn\u00ed strukturu vz\u00e1jemn\u00fdch vztah\u016f mezi jednotliv\u00fdmi bun\u011b\u010dn\u00fdmi sou\u010d\u00e1stmi imunitn\u00edho syst\u00e9mu. \u00daloha aktivovan\u00e9ho T lymfocytu je naprosto st\u011b\u017eejn\u00ed, proto\u017ee pr\u00e1v\u011b sign\u00e1ly, kter\u00e9 vys\u00edl\u00e1 na z\u00e1klad\u011b obdr\u017een\u00fdch informac\u00ed z okoln\u00edho prost\u0159ed\u00ed stimuluj\u00ed nebo brzd\u00ed celou s\u00ed\u0165 imunitn\u00edch interakc\u00ed.<\/p>\n\t\t\n<style>\n#text-2579171573 {\n  color: rgb(0,0,0);\n}\n#text-2579171573 > * {\n  color: rgb(0,0,0);\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"gap-1015030319\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-1015030319 {\n  padding-top: 30px;\n}\n<\/style>\n\t<\/div>\n\t\n\n<div class=\"row\"  id=\"row-1548671138\">\n\n\n\t<div id=\"col-728243822\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_1680764465\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner box-shadow-5 dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1020\" height=\"1020\" src=\"https:\/\/proboostnow.eu\/wp-content\/uploads\/2023\/02\/Cytokinova_signalizace-CD-lymfocyt-1024x1024.png\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/proboostnow.eu\/wp-content\/uploads\/2023\/02\/Cytokinova_signalizace-CD-lymfocyt.png 1024w, https:\/\/proboostnow.eu\/wp-content\/uploads\/2023\/02\/Cytokinova_signalizace-CD-lymfocyt-100x100.png 100w, https:\/\/proboostnow.eu\/wp-content\/uploads\/2023\/02\/Cytokinova_signalizace-CD-lymfocyt-510x510.png 510w, https:\/\/proboostnow.eu\/wp-content\/uploads\/2023\/02\/Cytokinova_signalizace-CD-lymfocyt-300x300.png 300w, https:\/\/proboostnow.eu\/wp-content\/uploads\/2023\/02\/Cytokinova_signalizace-CD-lymfocyt-150x150.png 150w, https:\/\/proboostnow.eu\/wp-content\/uploads\/2023\/02\/Cytokinova_signalizace-CD-lymfocyt-768x768.png 768w, https:\/\/proboostnow.eu\/wp-content\/uploads\/2023\/02\/Cytokinova_signalizace-CD-lymfocyt-12x12.png 12w, https:\/\/proboostnow.eu\/wp-content\/uploads\/2023\/02\/Cytokinova_signalizace-CD-lymfocyt-500x500.png 500w, https:\/\/proboostnow.eu\/wp-content\/uploads\/2023\/02\/Cytokinova_signalizace-CD-lymfocyt-800x800.png 800w\" sizes=\"auto, (max-width: 1020px) 100vw, 1020px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_1680764465 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\n\t<div id=\"text-4096866050\" class=\"text\">\n\t\t\n\n<p style=\"text-align: right;\"><a title=\"U\u017eivatel:M44gz\" href=\"https:\/\/www.wikiskripta.eu\/w\/U%C5%BEivatel:M44gz\">autor M44gz<\/a><\/p>\n\t\t\n<style>\n#text-4096866050 {\n  font-size: 0.75rem;\n}\n<\/style>\n\t<\/div>\n\t\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n<\/div>\n\t<div id=\"gap-371980565\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-371980565 {\n  padding-top: 30px;\n}\n<\/style>\n\t<\/div>\n\t\n\n<div class=\"row\"  id=\"row-1612454404\">\n\n\n\t<div id=\"col-341690749\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner text-center\"  >\n\t\t\t\n\t\t\t\n\n<div class=\"accordion\">\n\n\t<div id=\"accordion-3382634678\" class=\"accordion-item\">\n\t\t<a id=\"accordion-3382634678-label\" class=\"accordion-title plain\" href=\"#accordion-item-t-lymfocyty-proch\u00e1zej\u00ed-selekc\u00ed-a-dozr\u00e1v\u00e1n\u00edm-v-brzl\u00edku\" aria-expanded=\"false\" aria-controls=\"accordion-3382634678-content\" >\n\t\t\t<button class=\"toggle\" aria-label=\"Toggle\"><i class=\"icon-angle-down\"><\/i><\/button>\n\t\t\t<span>T lymfocyty proch\u00e1zej\u00ed selekc\u00ed a dozr\u00e1v\u00e1n\u00edm v brzl\u00edku<\/span>\n\t\t<\/a>\n\t\t<div id=\"accordion-3382634678-content\" class=\"accordion-inner\" aria-labelledby=\"accordion-3382634678-label\" >\n\t\t\t\n\n\t<div id=\"text-3812435294\" class=\"text\">\n\t\t\n\n<p>Sv\u00e9 jm\u00e9no odvozuj\u00ed od\u00a0<a href=\"https:\/\/www.wikiskripta.eu\/w\/Brzl%C3%ADk\">brzl\u00edku<\/a> neboli thymu, kde dosp\u00edvaj\u00ed. Vznikaj\u00ed v kostn\u00ed d\u0159eni jako zcela nezral\u00e9 bu\u0148ky. Teprve prost\u0159ed\u00ed v brzl\u00edku jim umo\u017en\u00ed vysp\u011bt v plnohodnotn\u00e9 imunokompetentn\u00ed bu\u0148ky. Velmi slo\u017eit\u00fdm procesem jsou selektov\u00e1ny bu\u0148ky, kter\u00e9 nezareaguj\u00ed na t\u011blu vlastn\u00ed znaky, kter\u00fdmi se prezentuj\u00ed zdrav\u00e9 bu\u0148ky. Pokud se tak stane, dostanou v t\u00e9hle nejtvrd\u0161\u00ed univerzit\u011b na sv\u011bt\u011b zn\u00e1mku neprosp\u011bl a musej\u00ed sp\u00e1chat sebevra\u017edu. Kdyby toti\u017e p\u0159e\u017eily, mohly by za\u010d\u00edt napadat vlastn\u00ed bu\u0148ky t\u011bla. Autoimunitn\u00ed reakce zp\u016fsoben\u00e1 \u0161patn\u011b reaguj\u00edc\u00edmi lymfocyty je pro organismus smrteln\u011b nebezpe\u010dn\u00e1. Matura\u010dn\u00ed proces p\u0159e\u017eije jen asi 1 a\u017e 5 % lymfocyt\u016f. Pot\u00e9 se z nich st\u00e1vaj\u00ed zral\u00e9, ale je\u0161t\u011b neaktivovan\u00e9 pomocn\u00e9 \u2013 helper CD4+ Th lymfocyty nebo cytotoxick\u00e9 CD8+Tc lymfocyty a skupina regula\u010dn\u00edch lymfocyt\u016f<a href=\"https:\/\/cs.wikipedia.org\/wiki\/Regula%C4%8Dn%C3%AD_T-lymfocyt\"> CD4+CD25+Foxp3+Treg bun\u011bk<\/a>. Ty vykon\u00e1vaj\u00ed dozor a brzd\u00ed ne\u017e\u00e1douc\u00ed z\u00e1n\u011bt a br\u00e1n\u00ed autoimunit\u00e1m. Vznikaj\u00ed pravd\u011bpodobn\u011b z CD4+ lymfocyt\u016f. V\u0161echny tyto skupiny se je\u0161t\u011b d\u00e1le rozd\u011bluj\u00ed na dal\u0161\u00ed subtypy tak, aby co nejspecifi\u010dt\u011bji vykon\u00e1valy sv\u00e9 \u00falohy.<\/p>\n\t\t\n<style>\n#text-3812435294 {\n  font-size: 1.05rem;\n  line-height: 1.8;\n  color: rgb(0,0,0);\n}\n#text-3812435294 > * {\n  color: rgb(0,0,0);\n}\n<\/style>\n\t<\/div>\n\t\n\n\t\t<\/div>\n\t<\/div>\n\t\n\n<\/div>\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n<\/div>\n\t<div id=\"gap-11496137\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-11496137 {\n  padding-top: 30px;\n}\n<\/style>\n\t<\/div>\n\t\n\n\t<div id=\"gap-99070088\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-99070088 {\n  padding-top: 30px;\n}\n<\/style>\n\t<\/div>\n\t\n\n\t<div id=\"text-2278568046\" class=\"text\">\n\t\t\n\n<h5 class=\"uppercase\">Zral\u00e9 diferencovan\u00e9 lymfocyty vycestuj\u00ed z brzl\u00edku do lymfatick\u00e9ho syst\u00e9mu a vy\u010dk\u00e1vaj\u00ed na podn\u011bt, kter\u00fd konkr\u00e9tn\u00edm zp\u016fsobem spust\u00ed aktiva\u010dn\u00ed proces, j\u00edm\u017e dojde k zah\u00e1jen\u00ed mnohovrstevn\u00e9 specifick\u00e9 imunitn\u00ed reakce.<\/h5>\n\t\t\n<style>\n#text-2278568046 {\n  text-align: center;\n  color: rgb(0,0,0);\n}\n#text-2278568046 > * {\n  color: rgb(0,0,0);\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"gap-554183631\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-554183631 {\n  padding-top: 30px;\n}\n<\/style>\n\t<\/div>\n\t\n\n<div class=\"accordion\">\n\n\t<div id=\"accordion-347710382\" class=\"accordion-item\">\n\t\t<a id=\"accordion-347710382-label\" class=\"accordion-title plain\" href=\"#accordion-item-aktivace-nezku\u0161en\u00fdch-cd4+-th-lymfocyt\u016f\" aria-expanded=\"false\" aria-controls=\"accordion-347710382-content\" >\n\t\t\t<button class=\"toggle\" aria-label=\"Toggle\"><i class=\"icon-angle-down\"><\/i><\/button>\n\t\t\t<span>Aktivace nezku\u0161en\u00fdch CD4+ Th Lymfocyt\u016f<\/span>\n\t\t<\/a>\n\t\t<div id=\"accordion-347710382-content\" class=\"accordion-inner\" aria-labelledby=\"accordion-347710382-label\" >\n\t\t\t\n\n\t<div id=\"text-3072765535\" class=\"text\">\n\t\t\n\n<p style=\"text-align: center;\">Aktiva\u010dn\u00ed proces, na kter\u00e9m se pod\u00edl\u00ed Thymic protein A posunem k Th1, je sledem reakc\u00ed naivn\u00edho\/nezku\u0161en\u00e9ho lymfocytu, kter\u00fd dosud nep\u0159i\u0161el do kontaktu s antigenem na informace o nebezpe\u010dn\u00e9 ud\u00e1losti v organismu, kter\u00e9 z\u00edsk\u00e1 prost\u0159ednictv\u00edm bun\u011b\u010dn\u00fdch a chemick\u00fdch posl\u016f. Jakmile obdr\u017e\u00ed lymfocyt v klidov\u00e9m stavu zpr\u00e1vu o nebezpe\u010d\u00ed, projde prvn\u00ed f\u00e1z\u00ed aktivace. Zda v\u016fbec a jak\u00fdm zp\u016fsobem prob\u011bhne druh\u00e1 f\u00e1ze a jak\u00fdm sm\u011brem a silou se rozvine \u0159et\u011bzec imunitn\u00edch proces\u016f, z\u00e1le\u017e\u00ed na slo\u017eit\u00e9m a p\u0159esn\u011b koordinovan\u00e9m sledu ud\u00e1lost\u00ed a interakc\u00ed na molekul\u00e1rn\u00ed \u00farovni.\u00a0<\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/cs.wikipedia.org\/wiki\/Pomocn%C3%BD_T_lymfocyt#Aktivace_nezku%C5%A1en%C3%BDch_pomocn%C3%BDch_T_lymfocyt%C5%AF\">Aktivace nezku\u0161en\u00fdch pomocn\u00fdch lymfocyt\u016f<\/a><\/p>\n<p>\u00a0<\/p>\n\t\t\n<style>\n#text-3072765535 {\n  color: rgb(0,0,0);\n}\n#text-3072765535 > * {\n  color: rgb(0,0,0);\n}\n<\/style>\n\t<\/div>\n\t\n\n\t\t<\/div>\n\t<\/div>\n\t\n\n<\/div>\n\t<div id=\"gap-637053620\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-637053620 {\n  padding-top: 30px;\n}\n<\/style>\n\t<\/div>\n\t\n\n\t<div id=\"gap-872114336\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-872114336 {\n  padding-top: 30px;\n}\n<\/style>\n\t<\/div>\n\t\n\n\t<div id=\"text-3484999510\" class=\"text\">\n\t\t\n\n<h5 class=\"uppercase\">Po aktivaci CD4+ Th lymfocytu se rozvine cel\u00e1 paleta slo\u017eit\u00fdch bun\u011b\u010dn\u00fdch i molekul\u00e1rn\u00edch interakc\u00ed, kter\u00e9 vedou k p\u0159esn\u011b vyv\u00e1\u017een\u00e9 stimulaci prosp\u011b\u0161n\u00fdch, ale i tlumen\u00ed ne\u017e\u00e1douc\u00edch specifick\u00fdch i nespecifick\u00fdch imunitn\u00edch proces\u016f.<\/h5>\n\t\t\n<style>\n#text-3484999510 {\n  text-align: center;\n  color: rgb(0,0,0);\n}\n#text-3484999510 > * {\n  color: rgb(0,0,0);\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"gap-397732754\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-397732754 {\n  padding-top: 30px;\n}\n<\/style>\n\t<\/div>\n\t\n\n\t<div id=\"text-3698078665\" class=\"text\">\n\t\t\n\n<p>\u00a0 \u00a0 \u00a0 Aktivovan\u00fd CD4+Th lymfocyt za\u010dne klonovat s\u00e1m sebe, aby tak zes\u00edlil informa\u010dn\u00ed a regula\u010dn\u00ed signalizaci kterou vykon\u00e1v\u00e1 pomoc\u00ed bun\u011b\u010dn\u00fdch a molekul\u00e1rn\u00edch interakc\u00ed. Jeho prost\u0159ednictv\u00edm doch\u00e1z\u00ed k aktivaci, stimulaci a mno\u017een\u00ed ostatn\u00edch efektorov\u00fdch lymfoidn\u00edch bun\u011bk, nap\u0159\u00edklad CD8+cytotoxick\u00fdch lymfocyt\u016f, B lymfocyt\u016f, NK bun\u011bk.. ale i bun\u011bk myeloidn\u00edho p\u016fvodu, \u010derven\u00fdch krvinek a krevn\u00edch desti\u010dek.\u00a0 \u00a0<\/p>\n<p>\u00a0<\/p>\n\t\t\n<style>\n#text-3698078665 {\n  color: rgb(0,0,0);\n}\n#text-3698078665 > * {\n  color: rgb(0,0,0);\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"gap-70583032\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-70583032 {\n  padding-top: 30px;\n}\n<\/style>\n\t<\/div>\n\t\n\n<div class=\"accordion\">\n\n\t<div id=\"accordion-1740962653\" class=\"accordion-item\">\n\t\t<a id=\"accordion-1740962653-label\" class=\"accordion-title plain\" href=\"#accordion-item-regula\u010dn\u00ed-\u00faloha-aktivovan\u00e9ho-cd4+-th-lymfocytu-v-pr\u016fb\u011bhu-imunitn\u00ed-reakce-na-informaci-o-nebezpe\u010d\u00ed\" aria-expanded=\"false\" aria-controls=\"accordion-1740962653-content\" >\n\t\t\t<button class=\"toggle\" aria-label=\"Toggle\"><i class=\"icon-angle-down\"><\/i><\/button>\n\t\t\t<span>Regula\u010dn\u00ed \u00faloha aktivovan\u00e9ho CD4+ Th lymfocytu v pr\u016fb\u011bhu imunitn\u00ed reakce na informaci o nebezpe\u010d\u00ed<\/span>\n\t\t<\/a>\n\t\t<div id=\"accordion-1740962653-content\" class=\"accordion-inner\" aria-labelledby=\"accordion-1740962653-label\" >\n\t\t\t\n\n\t<div id=\"text-2790652509\" class=\"text\">\n\t\t\n\n<p><span data-text-color=\"primary\"><span style=\"color: #777777;\">\u201c\u2026 <\/span><span style=\"color: #777777;\"><span style=\"font-family: Lato, sans-serif;\"><span style=\"font-size: large;\">Bu\u0148kami zprost\u0159edkovan\u00e1 imunita za\u010d\u00edn\u00e1 t\u00edm, \u017ee ve sp\u00e1dov\u00fdch lymfatick\u00fdch uzlin\u00e1ch \u010dekaj\u00edc\u00ed pomocn\u00e9<\/span><\/span><\/span><strong><span style=\"color: #777777;\">\u00a0<\/span><\/strong><span style=\"color: #777777;\"><span style=\"font-family: Lato, sans-serif;\"><span style=\"font-size: large;\">CD4+Th lymfocyty rozpoznaj\u00ed sv\u00fdm T-bun\u011b\u010dn\u00fdm receptorem ciz\u00ed nebezpe\u010dn\u00e9 \u00falomky b\u00edlkovin<\/span><\/span><\/span><span style=\"color: #777777;\"><span style=\"font-family: Lato, sans-serif;\"><span style=\"font-size: large;\">, kter\u00e9 jim na pozad\u00ed transplanta\u010dn\u00edch antigen\u016f p\u0159edkl\u00e1daj\u00ed dendritick\u00e9 bu\u0148ky a za\u010dnou jednat. P\u0159edev\u0161\u00edm se rychle\u00a0<\/span><\/span><\/span><strong><span style=\"color: #777777;\"><span style=\"font-family: Lato, sans-serif;\"><span style=\"font-size: large;\">namno\u017e\u00ed<\/span><\/span><\/span><\/strong><span style=\"color: #777777;\"><span style=\"font-family: Lato, sans-serif;\"><span style=\"font-size: large;\">, aby jich pro zdol\u00e1n\u00ed infekce bylo dostate\u010dn\u011b velik\u00e9 mno\u017estv\u00ed. Sou\u010dasn\u011b dost\u00e1vaj\u00ed z krve pomoc\u00ed cytokin\u016f a chemokin\u016f, kter\u00e9 produkuj\u00ed b\u00edl\u00e9 krvinky v m\u00edst\u011b infekce, podrobnou informaci, kde a o jakou infekci jde. Na toto pozn\u00e1n\u00ed reaguj\u00ed t\u00edm, \u017ee sp\u00e1dov\u00e9 lymfatick\u00e9 uzliny urychlen\u011b opou\u0161t\u011bj\u00ed, putuj\u00ed t\u011blem a hromad\u00ed se v m\u00edst\u011b hroz\u00edc\u00edho nebezpe\u010d\u00ed. Tady se pod vlivem m\u00edstn\u00edch tk\u00e1\u0148ov\u00fdch podm\u00ednek, vytvo\u0159en\u00fdch danou infekc\u00ed,<\/span><\/span><\/span>\u00a0pomocn\u00e9 CD4+ T lymfocyty funk\u010dn\u011b m\u011bn\u00ed, d\u00e1le dosp\u00edvaj\u00ed a z\u00edsk\u00e1vaj\u00ed dal\u0161\u00ed schopnosti a s nimi i nov\u00e9 povrchov\u00e9 znaky.\u00a0St\u00e1vaj\u00ed se z nich CD4+ T 1, CD4+ T2 nebo CD4+ T 17 a regula\u010dn\u00ed CD4+ Treg lymfocyty<span style=\"color: #777777;\"><span style=\"font-family: Lato, sans-serif;\"><span style=\"font-size: large;\">. Tato funk\u010dn\u00ed zm\u011bna jim zabere i n\u011bkolik dn\u00ed a v\u00fdsledn\u00fd typ Th pomocn\u00fdch bun\u011bk z\u00e1vis\u00ed na tom, jak\u00fd cizorod\u00fd materi\u00e1l imunitn\u00ed reakci nastartoval. Rozhoduj\u00edc\u00ed slovo maj\u00ed tak\u00e9 regula\u010dn\u00ed CD4+Treg. U lid\u00ed je obecn\u011b virov\u00e1 nebo bakteri\u00e1ln\u00ed infekce doprov\u00e1zena vznikem proz\u00e1n\u011btliv\u00fdch CD4+ Th1 lymfocyt\u016f a uvoln\u011bn\u00edm interferonu gama (IFN-y), interleukinu 12 (IL-12) a produkc\u00ed protil\u00e1tek typu IgM a pozd\u011bji IgG. Parazit\u00e1rn\u00ed infekce a infekce \u010dervy up\u0159ednost\u0148uje vznik protiz\u00e1n\u011btliv\u00fdch CD4+ Th2 lymfocyt\u016f a produkci interleukinu 4 (IL-4), interleukinu 5 (IL-5) a interleukinu 13 (IL-13) a tvorbu protil\u00e1tek t\u0159\u00edd IgM, IgG a IgE. Posledn\u011b jmenovan\u00fd imunoglobulin je sice \u00fa\u010dinn\u00fdm n\u00e1strojem pro odstra\u0148ov\u00e1n\u00ed parazit\u016f a \u010derv\u016f, ale stoj\u00ed tak\u00e9 za probl\u00e9my spojen\u00fdmi s alergick\u00fdmi reakcemi. Infekce pl\u00edsn\u011bmi b\u00fdv\u00e1 doprov\u00e1zena vznikem CD4+ Th17 lymfocyt\u016f a uvoln\u011bn\u00edm interleukinu 17 (IL-17) a interleukinu 22 (IL-22). \u00da\u010delem v\u0161ech t\u011bchto r\u016fznorod\u00fdch aktivit je podpora vzniku akutn\u00edho z\u00e1n\u011btu po setk\u00e1n\u00ed se \u0161kodliv\u00fdm materi\u00e1lem a jeho co nejrychlej\u0161\u00ed odstran\u011bn\u00ed v\u0161emi dostupn\u00fdmi, pom\u011brn\u011b rozmanit\u00fdmi prost\u0159edky\u2026.\u201d<\/span><\/span><\/span><\/span><\/p>\n<p style=\"text-align: right;\"><span data-text-color=\"primary\">B. \u0158\u00edhov\u00e1, M. \u0160\u0165astn\u00fd: \u201c<strong>Jak se d\u011bl\u00e1 imunita<\/strong>\u201c, CPress v Brn\u011b 2021<\/span><\/p>\n<p><span style=\"color: #777777;\"><span style=\"font-family: Lato, sans-serif;\"><span style=\"font-size: large;\">Spolu s CD4+ vycestuj\u00ed z uzlin i CD8+Tc lymfocyty<\/span><\/span><\/span><span style=\"color: #777777;\"><span style=\"font-family: Lato, sans-serif;\"><span style=\"font-size: large;\">.\u00a0<\/span><\/span><\/span><span style=\"color: #777777;\"><span style=\"font-family: Lato, sans-serif;\"><span style=\"font-size: large;\">Ty dozr\u00e1vaj\u00ed<\/span><\/span><\/span><span style=\"color: #777777;\"><span style=\"font-family: Lato, sans-serif;\"><span style=\"font-size: large;\">\u00a0jednak s pomoc\u00ed vn\u011bj\u0161\u00edch informac\u00ed z prost\u0159ed\u00ed, jednak\u00a0<\/span><\/span><\/span><span style=\"color: #777777;\"><span style=\"font-family: Lato, sans-serif;\"><span style=\"font-size: large;\">po stimulaci CD4+ lymfocyty<\/span><\/span><\/span><span style=\"color: #777777;\"><span style=\"font-family: Lato, sans-serif;\"><span style=\"font-size: large;\">.\u00a0Teprve tehdy jsou schopn\u00e9 zab\u00edt bu\u0148ky, kter\u00e9 jsou napadeny viry. Aby nedo\u0161lo p\u0159i pohlcen\u00ed pouze k p\u0159enosu infekce z jedn\u00e9 bu\u0148ky do druh\u00e9, pou\u017e\u00edvaj\u00ed jinou strategii. K napaden\u00e9 bu\u0148ce se t\u011bsn\u011b p\u0159ibl\u00ed\u017e\u00ed a n\u00e1sledn\u011b do n\u00ed b\u011bhem sekund vypust\u00ed agresivn\u00ed l\u00e1tky \u2013 granzymy, kter\u00e9 nebezpe\u010dnou bu\u0148ku rozpust\u00ed.<\/span><\/span><\/span><\/p>\n<p><span style=\"color: #777777;\"><span style=\"font-family: Lato, sans-serif;\"><span style=\"font-size: large;\">Pod vlivem cytokinu\u00a0<\/span><\/span><\/span><a href=\"https:\/\/cs.wikipedia.org\/wiki\/TGF-%CE%B2\"><span style=\"color: #334862;\"><span style=\"font-family: Lato, sans-serif;\"><span style=\"font-size: large;\">TGF-\u03b2<\/span><\/span><\/span><\/a><span style=\"color: #777777;\"><span style=\"font-family: Lato, sans-serif;\"><span style=\"font-size: large;\">\u00a0dojde v naivn\u00edch CD4+ bu\u0148k\u00e1ch indukci exprese FOXP3 a tak prob\u011bhne konverze na\u00a0<\/span><\/span><\/span><span style=\"color: #777777;\"><span style=\"font-family: Lato, sans-serif;\"><span style=\"font-size: large;\">indukovan\u00e9 regula\u010dn\u00ed T lymfocyty<\/span><\/span><\/span><span style=\"color: #777777;\"><span style=\"font-family: Lato, sans-serif;\"><span style=\"font-size: large;\">.\u00a0Do skupiny indukovan\u00fdch regula\u010dn\u00edch T lymfocyt\u016f pat\u0159\u00ed podskupina\u00a0<\/span><\/span><\/span><a href=\"https:\/\/cs.wikipedia.org\/wiki\/Regula%C4%8Dn%C3%AD_T_lymfocyt_typu_Tr1\"><span style=\"color: #334862;\"><span style=\"font-family: Lato, sans-serif;\"><span style=\"font-size: large;\">Tr1<\/span><\/span><\/span><\/a><span style=\"color: #777777;\"><span style=\"font-family: Lato, sans-serif;\"><span style=\"font-size: large;\">\u00a0charakterizovan\u00e1 velkou produkc\u00ed\u00a0<\/span><\/span><\/span><a href=\"https:\/\/cs.wikipedia.org\/w\/index.php?title=IL-10&amp;action=edit&amp;redlink=1\"><span style=\"color: #334862;\"><span style=\"font-family: Lato, sans-serif;\"><span style=\"font-size: large;\">IL-10<\/span><\/span><\/span><\/a><span style=\"color: #777777;\"><span style=\"font-family: Lato, sans-serif;\"><span style=\"font-size: large;\">\u00a0a podskupina\u00a0<\/span><\/span><\/span><a href=\"https:\/\/cs.wikipedia.org\/w\/index.php?title=Th3&amp;action=edit&amp;redlink=1\"><span style=\"color: #334862;\"><span style=\"font-family: Lato, sans-serif;\"><span style=\"font-size: large;\">Th3<\/span><\/span><\/span><\/a><span style=\"color: #777777;\"><span style=\"font-family: Lato, sans-serif;\"><span style=\"font-size: large;\">, kter\u00e1 produkuje\u00a0<\/span><\/span><\/span><a href=\"https:\/\/cs.wikipedia.org\/wiki\/TGF-%CE%B2\"><span style=\"color: #334862;\"><span style=\"font-family: Lato, sans-serif;\"><span style=\"font-size: large;\">TGF-\u03b2<\/span><\/span><\/span><\/a><span style=\"color: #777777;\"><span style=\"font-family: Lato, sans-serif;\"><span style=\"font-size: large;\">. Tato skupina CD4+ lymfocyt\u016f kontroluje autoreaktivn\u00ed lymfocyty, tedy ty, kter\u00e9 unikly selekci v brzl\u00edku a vykazuj\u00ed patologickou afinitu k vlastn\u00edm tk\u00e1n\u00edm t\u011bla.\u00a0<\/span><\/span><\/span><span style=\"color: #777777;\"><span style=\"font-family: Lato, sans-serif;\"><span style=\"font-size: large;\">Regula\u010dn\u00ed T lymfocyty<\/span><\/span><\/span><span style=\"color: #777777;\"><span style=\"font-family: Lato, sans-serif;\"><span style=\"font-size: large;\">\u00a0tak vykon\u00e1vaj\u00ed v\u00fdznamnou \u00falohu p\u0159i p\u0159edch\u00e1zen\u00ed autoimunitn\u00edm proces\u016fm jako druh\u00fd stupe\u0148 kontroly.<\/span><\/span><\/span><\/p>\n<p><span style=\"color: #777777;\"><span style=\"font-family: Lato, sans-serif;\"><span style=\"font-size: large;\">I B lymfocyty, kter\u00e9 jsou zodpov\u011bdn\u00e9 za tvorbu protil\u00e1tek \u010dekaj\u00ed na sign\u00e1l od CD4+Th lymfocyt\u016f.<\/span><\/span><\/span><span style=\"color: #777777;\"><span style=\"font-family: Lato, sans-serif;\"><span style=\"font-size: large;\">\u00a0Teprve potom vyzr\u00e1vaj\u00ed a m\u011bn\u00ed se na bu\u0148ky produkuj\u00edc\u00ed protil\u00e1tky, tzv. imunoglobuliny. Protil\u00e1tky v podstat\u011b obal\u00ed bakterii nebo ciz\u00ed partikuli a t\u00edm usnadn\u00ed jej\u00ed pohlcen\u00ed fagocytuj\u00edc\u00edmi bu\u0148kami. Pro ty je takto l\u00e9pe \u201cstraviteln\u00e1\u201d a po jej\u00edm pohlcen\u00ed ji rozl\u00e1mou na men\u0161\u00ed kousky a spot\u0159ebuj\u00ed na svou v\u00fd\u017eivu. Kdy\u017e je infekce zdol\u00e1na, v\u011bt\u0161ina T a B bun\u011bk um\u00edr\u00e1. Z\u016fst\u00e1vaj\u00ed ale ty pam\u011b\u0165ov\u00e9, kter\u00e9 zajist\u00ed, \u017ee p\u0159i dal\u0161\u00edm kontaktu se stejn\u00fdm patogenem je reakce okam\u017eit\u00e1 a mnohon\u00e1sobn\u011b \u00fa\u010dinn\u011bj\u0161\u00ed a tak zabr\u00e1n\u00ed rozvinut\u00ed nemoci je\u0161t\u011b v z\u00e1rodku. Na tomto principu funguje i o\u010dkov\u00e1n\u00ed.<\/span><\/span><\/span><\/p>\n<p>\u00a0 \u00a0 \u00a0 Viz tak\u00e9 v\u00fd\u0161e: Schema proces\u016f, kter\u00e9 jsou p\u0159\u00edmo z\u00e1visl\u00e9 a limitovan\u00e9 nab\u00eddkou dostate\u010dn\u00e9ho po\u010dtu diferencovan\u00fdch naivn\u00edch CD4+Th0 lymfocyt\u016f.<\/p>\n\t\t\n<style>\n#text-2790652509 {\n  color: rgb(0,0,0);\n}\n#text-2790652509 > * {\n  color: rgb(0,0,0);\n}\n<\/style>\n\t<\/div>\n\t\n\n\t\t<\/div>\n\t<\/div>\n\t\n\n<\/div>\n\t<div id=\"gap-596074797\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-596074797 {\n  padding-top: 30px;\n}\n<\/style>\n\t<\/div>\n\t\n\n\t<div id=\"gap-1922987677\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-1922987677 {\n  padding-top: 30px;\n}\n<\/style>\n\t<\/div>\n\t\n\n<div class=\"row align-center\"  id=\"row-1748916764\">\n\n\n\t<div id=\"col-446858187\" class=\"col medium-9 small-12 large-9\"  >\n\t\t\t\t<div class=\"col-inner text-center\"  >\n\t\t\t\n\t\t\t\n\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n<\/div>\n\t<div id=\"gap-494840412\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-494840412 {\n  padding-top: 30px;\n}\n<\/style>\n\t<\/div>","protected":false},"excerpt":{"rendered":"","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1549","page","type-page","status-publish","hentry"],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/proboostnow.eu\/en_us\/wp-json\/wp\/v2\/pages\/1549","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/proboostnow.eu\/en_us\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/proboostnow.eu\/en_us\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/proboostnow.eu\/en_us\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/proboostnow.eu\/en_us\/wp-json\/wp\/v2\/comments?post=1549"}],"version-history":[{"count":0,"href":"https:\/\/proboostnow.eu\/en_us\/wp-json\/wp\/v2\/pages\/1549\/revisions"}],"wp:attachment":[{"href":"https:\/\/proboostnow.eu\/en_us\/wp-json\/wp\/v2\/media?parent=1549"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}