Video: Dab tsi yog txheej txheem ntawm kev xaiv neeg?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Kev xaiv tus kheej . Txhais. Clonal xaiv yog a txheej txheem tau thov piav qhia yuav ua li cas ib leeg B lossis T cell uas lees paub tias muaj antigen uas nkag mus rau hauv lub cev xaiv los ntawm pre-existing cell pas dej ua ke ntawm txawv antigen tshwj xeeb thiab ces reproduced los tsim ib tug clonal cell pejxeem uas tshem tawm cov antigen.
Tsis tas li cov lus nug yog, dab tsi yog cov kauj ruam ntawm xaiv clonal?
Clonal xaiv ntawm lymphocytes: 1) Ib tug hematopoietic qia cell raug kev sib txawv thiab genetic rearrangement los tsim 2) tsis paub qab hau lymphocytes nrog ntau yam sib txawv antigen receptors. Cov uas khi rau 3) antigens los ntawm lub cev cov ntaub so ntswg raug puas tsuaj, thaum tus so loj hlob mus rau hauv 4) inactive lymphocytes.
Ib yam nkaus, dab tsi yog kev xaiv tus kheej hauv lub cev tiv thaiv kab mob? Clonal xaiv kev tshawb xav yog kev tshawb fawb tshawb fawb hauv kev tiv thaiv kab mob uas piav qhia txog kev ua haujlwm ntawm cov cell ntawm cov tiv thaiv kab mob ( cov lymphocytes ) hauv lus teb rau cov antigens tshwj xeeb ua rau lub cev. Nyob rau hauv luv luv, txoj kev xav yog ib qho kev piav qhia ntawm lub mechanism rau tiam ntawm ntau haiv neeg ntawm antibody tshwj xeeb.
Khaws qhov no hauv kev xav, ntev npaum li cas yog clonal xaiv?
Nws feem ntau siv 4-5 hnub rau qhov tsis paub B-lymphocyte uas tau qhib kom ua tiav clonal expansion thiab sib txawv ua qhov ua tau zoo B-lymphocytes.
Qhov twg clonal expansion tshwm sim?
Cov txheej txheem, hu ua clonal nthuav dav , yog dab tsi ua rau lub cev tiv thaiv kab mob hloov pauv nws lub peev xwm tshwj xeeb thiab tshwj xeeb. Koj hais tau li ntawd clonal expansion yog tshwm sim thaum koj hnov mob pob txha (mob qog nqaij hlav) hauv koj lub caj dab lossis lwm qhov chaw.
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