![Cytotoxic T cells nyob qhov twg? Cytotoxic T cells nyob qhov twg?](https://i.answers-medical.com/preview/medical-health/13830864-where-are-cytotoxic-t-cells-j.webp)
Video: Cytotoxic T cells nyob qhov twg?
![Video: Cytotoxic T cells nyob qhov twg? Video: Cytotoxic T cells nyob qhov twg?](https://i.ytimg.com/vi/iQoY4RprTxo/hqdefault.jpg)
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
CD8+ (NCO+ cytotoxic tshuaj ) T hlwb , zoo li CD4+ Pab T hlwb , tau tsim tawm hauv cov thymus thiab nthuav tawm T - ntawm tes tus txais. Txawm li cas los xij, ntau dua li CD4 molecule, cytotoxic T hlwb nthuav tawm tus lej sib luag, CD8, feem ntau yog tsim los ntawm ib CD8α thiab ib qho CD8β saw.
Hauv qhov no, cytotoxic T cells yog dab tsi?
A cytotoxic T cell (tseem hu ua T C, cytotoxic T . cov lymphocyte, CTL, T - cell tua neeg , cytolytic cov T tes CD8+, Txd T - ntawm tes los yog tua T cell ) yog a T lymphocyte (hom ntshav dawb ntawm tes ) uas tua mob qog noj ntshav hlwb , hlwb uas tau kis tus kab mob (tshwj xeeb yog kab mob), lossis hlwb uas puas nyob rau lwm txoj kev.
Ib sab saum toj no, pes tsawg hom T cells yog cytotoxic? Muaj ob qhov loj hom ntawm T hlwb : ua pab T cell thiab cov cytotoxic T cell . Raws li cov npe qhia pab T cells 'pab' lwm tus hlwb ntawm lub cev tiv thaiv kab mob, thaum cytotoxic T hlwb tua tus kab mob virally hlwb thiab qog.
Ntawm no, ua li cas cytotoxic T cells ua haujlwm?
Cytotoxic CD8 T hlwb ua tiav lawv txoj haujlwm tua los ntawm kev tso ob hom preformed cytotoxic tshuaj protein: cov granzymes, uas zoo li tuaj yeem ua rau apoptosis hauv txhua hom phiaj ntawm tes, thiab pore-forming protein perforin, uas xuas qhov rau hauv cov phiaj-cell membrane uas cov granzymes tuaj yeem nkag mus.
Cytotoxic T cells tua mob qog noj ntshav li cas?
Ib hom kev tiv thaiv kab mob ntawm tes uas tau tua paub tseeb hlwb , suav nrog txawv teb chaws hlwb , cov qog nqaij hlav cancer , thiab hlwb kis tus kab mob. Cytotoxic T cells tuaj yeem sib cais los ntawm lwm cov ntshav hlwb , loj hlob hauv chav kuaj, thiab tom qab ntawd muab rau tus neeg mob rau tua cov qog nqaij hlav cancer.
Pom zoo:
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