Memory B hlwb raug tsim tawm thaum cov lus teb thawj zaug rau cov tshuaj tiv thaiv T-dependent. Lawv tsis tsim cov tshuaj tiv thaiv, piv txwv li, tsis tiv thaiv, tshwj tsis yog tias rov raug cov tshuaj tiv thaiv kab mob ua rau lawv qhov sib txawv rau hauv cov tshuaj tiv thaiv uas tsim cov plasma hlwb.
Lub cim xeeb B hlwb tsim cov tshuaj tiv thaiv li cas?
Txhua B cell tsim ib hom tshuaj tiv thaiv kab mob, txhua tus muaj qhov tshwj xeeb antigen-binding site. Thaum lub cev tsis muaj zog lossis nco B cell yog qhib los ntawm antigen(nrog kev pab ntawm tus pab T cell), nws proliferates thiab sib txawv rau hauv cov tshuaj tiv thaiv-secreting effector cell.
Cov hlwb twg tuaj yeem tsim cov tshuaj tiv thaiv?
A lymphocyte yog ib hom qe ntshav dawb uas yog ib feem ntawm lub cev tiv thaiv kab mob. Muaj ob hom lymphocytes tseem ceeb: B hlwb thiab T hlwb. Cov B hlwb tsim cov tshuaj tiv thaiv uas siv los tua cov kab mob invading, kab mob, thiab co toxins.
Lub hlwb puas muaj kev tiv thaiv?
Differentiation of memory B cells rau hauv plasma cells yog ceev tshaj qhov sib txawv los ntawm naïve B hlwb, uas tso cai rau lub cim xeeb B hlwb los tsim ntau dua efficient Secondary immune response Kev ua tau zoo thiab sib sau ua ke ntawm lub cim xeeb B cell teb yog lub hauv paus rau cov tshuaj tiv thaiv thiab tshuaj tua kab mob.
Covid puas ua rau lub hlwb nco?
Lub cev tiv thaiv kab mob tseem ceeb tau tsim tom qab COVID-19, suav nrog tag nrho plaub hom kev tiv thaiv kab mob loj. Kwv yees li 95% ntawm cov neeg mob khaws cia lub cim xeeb tiv thaiv kab mob ntawm ~ 6 lub hlis tom qab kis kab mob. Circulating antibody titers tsis tau kwv yees ntawm T cell nco.
