{"id":10456,"date":"2019-09-23T09:21:14","date_gmt":"2019-09-23T12:21:14","guid":{"rendered":"https:\/\/blog.mindthegraph.com\/?p=10456"},"modified":"2022-10-14T11:21:45","modified_gmt":"2022-10-14T14:21:45","slug":"immune-cell-signalling","status":"publish","type":"post","link":"https:\/\/mindthegraph.com\/blog\/pl\/sygnalizacja-immunologiczna\/","title":{"rendered":"Nowe dane naukowe: Czas jest odpowiedzi\u0105 na sygnalizacj\u0119 kom\u00f3rek odporno\u015bciowych"},"content":{"rendered":"<p style=\"text-align: justify;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\">P\u0119cherzyki s\u0105 odpowiedzialne za obron\u0119 naszego cia\u0142a przed zagro\u017ceniami, utrzymuj\u0105c nas przy \u017cyciu. <\/span><span style=\"vertical-align: inherit;\">Jak te kom\u00f3rki identyfikuj\u0105 amea\u00e7a? <\/span><span style=\"vertical-align: inherit;\">W ludzkim ciele, sk\u0142adaj\u0105cym si\u0119 z trzech kom\u00f3rek, musz\u0105 one by\u0107 specyficzne i precyzyjne. <\/span><span style=\"vertical-align: inherit;\">Caso contr\u00e1rio, eles come\u00e7am a nos atacar por dentro. <\/span><span style=\"vertical-align: inherit;\">Odpowiedzialno\u015b\u0107 ta spoczywa na barkach kom\u00f3rek T, agent\u00f3w wyspecjalizowanych w identyfikowaniu szkodliwych antygen\u00f3w i oznaczaniu ich w celu zniszczenia. <\/span><span style=\"vertical-align: inherit;\">Jednym z najwa\u017cniejszych pyta\u0144 dotycz\u0105cych identyfikacji kom\u00f3rek imunes jest to, kt\u00f3re kom\u00f3rki odr\u00f3\u017cniaj\u0105 nasze w\u0142asne kom\u00f3rki zdrowe, a kt\u00f3re s\u0105 dla nas szkodliwe.<\/span><\/span><\/p>\n<p style=\"text-align: justify;\"><a href=\"https:\/\/mindthegraph.com\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-10459\" src=\"https:\/\/blog.mindthegraph.com\/wp-content\/uploads\/2019\/09\/t-cell-activation.png\" alt=\"aktywacja kom\u00f3rek t\" width=\"850\" height=\"638\" srcset=\"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2019\/09\/t-cell-activation.png 1280w, https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2019\/09\/t-cell-activation-300x225.png 300w, https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2019\/09\/t-cell-activation-768x576.png 768w, https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2019\/09\/t-cell-activation-1024x768.png 1024w\" sizes=\"(max-width: 850px) 100vw, 850px\" \/><\/a><\/p>\n<p style=\"text-align: justify;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\">W trakcie rozwoju organizm wytwarza miliony kom\u00f3rek T z r\u00f3\u017cnymi typami receptor\u00f3w. <\/span><span style=\"vertical-align: inherit;\">Ostatecznie, nasze cia\u0142o nie wie dok\u0142adnie, co rezerwuje przysz\u0142o\u015b\u0107. <\/span><span style=\"vertical-align: inherit;\">Jest jednak pewien problem z t\u0105 strategi\u0105. <\/span><span style=\"vertical-align: inherit;\">Wytwarzamy kom\u00f3rki za pomoc\u0105 receptor\u00f3w, kt\u00f3re identyfikuj\u0105 peptydy wp\u0142ywaj\u0105ce na organizm. <\/span><span style=\"vertical-align: inherit;\">Podczas rozwoju eliminujemy wi\u0119kszo\u015b\u0107 kom\u00f3rek T, kt\u00f3re reaguj\u0105 na te \"najlepsze\" cz\u0105steczki. <\/span><span style=\"vertical-align: inherit;\">W zwi\u0105zku z tym niekt\u00f3re z nich kr\u0105\u017c\u0105 w organizmie przez ca\u0142e \u017cycie, chroni\u0105c go przed zaka\u017ceniami i anormalnymi chorobami, bez szkody dla organizmu.<\/span><\/span><\/p>\n<h3 style=\"text-align: justify;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\">Co utrudnia kom\u00f3rkom T marnowanie naszych bia\u0142ych kom\u00f3rek?<\/span><\/span><\/h3>\n<p style=\"text-align: justify;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\">Nowy artyku\u0142 zatytu\u0142owany Controle optogen\u00e9tico pokazuje, \u017ce rewizja kinetyki reguluje aktywno\u015b\u0107 receptora kom\u00f3rek T i dostarcza nowych dowod\u00f3w na to pytanie. <\/span><span style=\"vertical-align: inherit;\">Weiner, jeden z autor\u00f3w jednego z artyku\u0142\u00f3w, powiedzia\u0142 <\/span><\/span><a href=\"https:\/\/www.quantamagazine.org\/immune-cells-measure-time-to-identify-foreign-proteins-20190603\/\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\">Quanta Magazine<\/span><\/span><\/a><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"> que \" <\/span><\/span><em><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\">kom\u00f3rka mo\u017ce by\u0107 w stanie wykry\u0107 du\u017ce, bardzo ma\u0142e r\u00f3\u017cnice w trwa\u0142o\u015bci wi\u0105zki receptora i wzmocni\u0107 je, aby uzyska\u0107 znacznie wi\u0119ksz\u0105 odpowied\u017a kom\u00f3rkow\u0105\".<\/span><\/span><\/em><\/p>\n<h3 style=\"text-align: justify;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\">Kluczem do selekcji kom\u00f3rek macierzystych jest czas. <\/span><span style=\"vertical-align: inherit;\">Substancje, kt\u00f3re wi\u0105\u017c\u0105 si\u0119 z receptorami kom\u00f3rek T przez mniej ni\u017c dziewi\u0119\u0107 sekund, s\u0105 uwa\u017cane za bezpieczne, podczas gdy cz\u0105steczki wi\u0105\u017c\u0105ce si\u0119 d\u0142u\u017cej s\u0105 niszczone.<\/span><\/span><\/h3>\n<p style=\"text-align: justify;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\">Essa teoria, znana jako revis\u00e3o cin\u00e9tica, nie jest nowa. <\/span><span style=\"vertical-align: inherit;\">Pocz\u0105wszy od 90 roku, niekt\u00f3rzy badacze proponuj\u0105 czas jako klucz do identyfikacji. <\/span><\/span><em><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\">Ponadto, testy hipotetyczne wykaza\u0142y sugestywne korelacje mi\u0119dzy czasem ligacji a aktywno\u015bci\u0105 kom\u00f3rek T, dok\u0142adnie tak, jak pokazano w przegl\u0105dzie kinetycznym, Jednak te metody badawcze nie s\u0105 w stanie oddzieli\u0107 wp\u0142ywu czasu od wp\u0142ywu innych czynnik\u00f3w biologicznych, takich jak zmiany w strukturze cz\u0105steczek i r\u00f3\u017cnice w d\u0142ugo\u015bci \u017cycia. <\/span><\/span><\/em><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\">Co wi\u0119cej, badacze zdaj\u0105 sobie spraw\u0119, \u017ce wiele parametr\u00f3w potencjalnie wa\u017cnych w grze, kt\u00f3rych nie byli w stanie zmierzy\u0107 ani przeanalizowa\u0107, nie zosta\u0142o wzi\u0119tych pod uwag\u0119.<\/span><\/span><\/p>\n<h2 style=\"text-align: justify;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\">Nowe dane optogenetyczne w diagnostyce kom\u00f3rek macierzystych<\/span><\/span><\/h2>\n<p style=\"text-align: justify;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\">\u00a0Optogenetyka to dziedzina bada\u0144 wykorzystuj\u0105ca \u015bwiat\u0142o do kontrolowania kom\u00f3rek. <\/span><span style=\"vertical-align: inherit;\">Naukowcy stosuj\u0105 t\u0119 metod\u0119 do kontroli interakcji bia\u0142ko-bia\u0142ko we wszystkich rodzajach bada\u0144. <\/span><span style=\"vertical-align: inherit;\">Obecnie dwa zespo\u0142y badawcze wykorzystuj\u0105 t\u0119 technologi\u0119 do badania selekcji kom\u00f3rek macierzystych, jeden z siedzib\u0105 w Alemanii, a drugi w San Francisco. <\/span><span style=\"vertical-align: inherit;\">Pomimo r\u00f3\u017cnic mi\u0119dzy tymi dwoma badaniami, badacze uzyskali podobne wyniki: gdy zdarzenie ligacji trwa\u0142o d\u0142u\u017cej ni\u017c dziewi\u0119\u0107 sekund, kom\u00f3rka T stawa\u0142a si\u0119 aktywna, ale nie mog\u0142a tego zrobi\u0107 d\u0142u\u017cej.<\/span><\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\">Nie jest jasne, dlaczego tak si\u0119 dzieje. <\/span><span style=\"vertical-align: inherit;\">Ankieterzy maj\u0105 jednak odpowied\u017a na to pytanie: \" <\/span><\/span><em><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\">Pocz\u0105wszy od momentu, w kt\u00f3rym receptor kom\u00f3rki T \u0142\u0105czy si\u0119 z kom\u00f3rk\u0105, musi nast\u0105pi\u0107 seria nieodwracalnych etap\u00f3w biologicznych, zanim kom\u00f3rka zostanie aktywowana. Je\u015bli podczas tej kaskady rozdzielania cz\u0105steczka ulegnie znacznemu pogorszeniu, wszystko musi si\u0119 poprawi\u0107 od pierwszego etapu\".\u00a0<\/span><\/span><\/em><\/p>\n<p style=\"text-align: justify;\"><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\">Jak zawsze w \u017cyciu, nowa odpowied\u017a rodzi nowe pytania. <\/span><span style=\"vertical-align: inherit;\">Wiemy nieco wi\u0119cej ni\u017c wcze\u015bniej, ale wci\u0105\u017c mamy do odkrycia ca\u0142y nieznany wszech\u015bwiat.<\/span><\/span><\/p>\n<p style=\"text-align: justify;\"><a href=\"https:\/\/mindthegraph.com\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-full wp-image-6577\" src=\"https:\/\/blog.mindthegraph.com\/wp-content\/uploads\/2017\/01\/start_get-mind-the-graph-medical-illustrations.png\" alt=\"dba\u0142o\u015b\u0107 o grafik\u0119 i ilustracje naukowe\" width=\"310\" height=\"100\" srcset=\"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2017\/01\/start_get-mind-the-graph-medical-illustrations.png 310w, https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2017\/01\/start_get-mind-the-graph-medical-illustrations-300x97.png 300w\" sizes=\"(max-width: 310px) 100vw, 310px\" \/><\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Cia\u0142a migda\u0142owate s\u0105 odpowiedzialne za obron\u0119 naszego organizmu przed zagro\u017ceniami, utrzymuj\u0105c nas przy \u017cyciu. Jak te kom\u00f3rki rozpoznaj\u0105 zagro\u017cenie? W ludzkim ciele, sk\u0142adaj\u0105cym si\u0119 z trzech kom\u00f3rek, musz\u0105 one by\u0107 specyficzne i precyzyjne. W przeciwnym razie atakuj\u0105 nas od wewn\u0105trz. Odpowiedzialno\u015b\u0107 ta spoczywa na barierach kom\u00f3rek T, agentach specjalizuj\u0105cych si\u0119 w [...]<\/p>","protected":false},"author":11,"featured_media":10461,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"image","meta":[],"categories":[959,28],"tags":[302,361,360,299,318,354,256],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>New scientific data: time is the immune cell response<\/title>\n<meta name=\"description\" content=\"One of the biggest questions on immune cell signalling is how the T cells distinguish our own healthy cells and what is harmful for us.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/mindthegraph.com\/blog\/pl\/sygnalizacja-immunologiczna\/\" \/>\n<meta property=\"og:locale\" content=\"pl_PL\" \/>\n<meta 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