Qhov sib txawv tseem ceeb ntawm cov lymphocytes paub tab thiab tsis paub tab yog tias cov lymphocytes paub tab muaj peev xwm tiv thaiv kab mob hauv lub cev, thaum cov lymphocytes tsis paub qab hau tsis muaj peev xwm tiv thaiv kab mob hauv lub cev.
A lymphocyte yog ib hom qe ntshav dawb uas yog ib feem ntawm lub cev tiv thaiv kab mob. Raws li lawv txoj haujlwm, muaj peb hom lymphocytes tseem ceeb: B hlwb, T hlwb, thiab cov hlwb tua neeg. B hlwb tsim cov tshuaj tiv thaiv los tua cov kab mob invading, kab mob, thiab co toxins. T hlwb rhuav tshem lub cev cov hlwb uas tau raug coj los ntawm cov kab mob los yog ua mob qog noj ntshav. Natural killer cells ua haujlwm hauv cell-mediated cytotoxic innate immunity. Txawm li cas los xij, raws li lawv txoj kev loj hlob, lymphocytes raug faib ua ob hom li cov lymphocytes paub tab thiab tsis paub tab. Cov lymphocytes tsis paub qab hau yog precursors rau mature lymphocytes.
Lymphocytes Mature yog dab tsi?
cov lymphocytes paub tab muaj peev xwm tiv thaiv kab mob hauv lub cev. Cov lymphocytes paub tab yog cov qe ntshav dawb uas taug kev los ntawm cov kab mob lymphatic thiab pab tib neeg thiab lwm yam tsiaj tawm tsam ntau yam kab mob. Muaj peb lub ntsiab lymphocytes, suav nrog B hlwb, T hlwb, thiab cov hlwb tua neeg. Tag nrho cov hlwb no tshwm sim los ntawm cov pob txha pob txha. Tab sis qee qhov mus rau ntau qhov chaw ntawm lub cev kom paub tab. Lawv kuj ua haujlwm txawv. Txawm li cas los xij, cov lymphocytes no feem ntau tawm tsam cov hlwb thiab cov ntaub so ntswg.
Daim duab 01: Mature Lymphocytes
B hlwb tsim nyob rau hauv cov pob txha pob txha thiab loj hlob nyob rau ntawd thiab. Mature B hlwb ces tas li mus thoob plaws lub cev. Thaum lawv pom ib tus invader hauv lub cev, B hlwb tig mus rau plasma hlwb uas tsim cov tshuaj tiv thaiv. Qhov no yog humoral teb. T hlwb yog tsim los ntawm qia hlwb nyob rau hauv cov pob txha pob txha. Tom qab ntawd lawv mus rau lub caj pas thymus, qhov chaw uas lawv loj hlob tiav. Tom qab ntawd cov T hlwb no mus rau cov qog nqaij hlav, qhov chaw lawv raug xa mus rau cov hlab ntsha yog tias tsim nyog. Feem ntau ntawm T cell yog me me, tab sis ib tug puv tes ntawm cov cell loj hlob mus txog ob zaug qhov loj ntawm qhov seem. Txhua lub hlwb T uas paub tab saib xyuas cov cell-mediated adaptive tiv thaiv kab mob.
Thaum xub thawj, nws tau xav tias lub ntuj tua cov hlwb tau tsim tshwj xeeb hauv cov pob txha pob txha. Tab sis cov kev tshawb fawb tsis ntev los no qhia tias lawv tuaj yeem txhim kho thiab paub tab hauv cov ntaub so ntswg lymphoid (SLTs), suav nrog tonsils, spleen, thiab lymph nodes. Natural killer cells yog cov feem ntau innate lymphocyte subsets uas feem ntau kho cov qog nqaij hlav thiab cov tshuaj tiv thaiv kab mob.
Lymphocytes tsis paub tab yog dab tsi?
Imaturelymphocytes tsis muaj peev xwm tiv thaiv kab mob hauv lub cev. Lawv feem ntau yog los ntawm cov qia hlwb ntawm cov pob txha pob txha. Lawv kuj tuaj yeem xa mus rau cov hlwb tsis paub tab uas feem ntau sib txawv los ua cov lymphocytes paub tab.
Daim duab 02: Hematopoiesis
Cov lymphocytes tsis paub qab hau tau qhib los ntawm cov tshuaj tiv thaiv los ntawm cov tshuaj tiv thaiv kab mob thiab nce hauv ntim los ntawm cov nucleus thiab cytoplasm kev loj hlob, nrog rau cov mRNA tshiab thiab cov protein synthesis. Lawv pib faib ob mus rau plaub zaug txhua 24 teev rau peb mus rau tsib hnub, qhov twg ib leeg lymphocyte tsis paub qab hau ua rau kwv yees li 1000 clones ntawm nws thawj cov lymphocyte naive. Thaum kawg, cov kev faib cov hlwb sib txawv rau hauv cov hlwb ua haujlwm (cov lymphocytes paub tab) hu ua plasma cells (B cells), cytotoxic T cells, T pab hlwb, thiab cov laus neeg tua neeg laus.
Dab tsi zoo sib xws ntawm Mature thiab Immature Lymphocytes?
- cov lymphocytes paub tab thiab tsis paub tab yog ob hom lymphocytes raws li kev loj hlob.
- Imaturelymphocytes yog precursors rau mature lymphocytes.
- Ob hom tuaj yeem pom hauv pob txha.
- Lawv tuaj yeem hloov mus rau cov qog nqaij hlav cancer.
Dab tsi yog qhov txawv ntawm cov neeg paub tab thiab tsis paub tab Lymphocytes?
cov lymphocytes mature muaj peev xwm tiv thaiv kab mob hauv lub cev, thaum cov lymphocytes tsis paub qab hau tsis muaj peev xwm tiv thaiv kab mob hauv lub cev. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm kev paub tab thiab tsis paub tab lymphocytes. Tsis tas li ntawd, cov lymphocytes paub tab muaj nyob rau hauv cov pob txha pob txha, thymus, lymph nodes, cov hlab ntsha, tonsils, thiab spleen. Ntawm qhov tod tes, cov lymphocytes tsis paub qab hau feem ntau pom nyob rau hauv cov pob txha pob txha thiab tsis tshua muaj cov lymphoid cov ntaub so ntswg (SLTs).
Cov hauv qab no qhia txog qhov sib txawv ntawm cov neeg laus thiab cov neeg tsis paub tab hauv daim ntawv tabular rau ib sab ntawm kev sib piv.
Summary – Mature vs Immature Lymphocytes
cov lymphocytes paub tab thiab tsis paub tab yog ob hom lymphocytes raws li kev loj hlob. Cov lymphocytes paub tab muaj peev xwm tiv thaiv kab mob hauv lub cev, thaum cov lymphocytes tsis paub qab hau tsis muaj peev xwm tiv thaiv kab mob hauv lub cev. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm cov neeg laus thiab cov lymphocytes tsis paub tab.
