2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Cytotoxic T lymphocytes, ntuj killer (NK) hlwb thiab tshuaj tiv thaiv kab mob macrophages tuaj yeem paub thiab tua cov kab mob kis tau. Helper T cells tuaj yeem paub txog cov kab mob uas kis tau tus kab mob thiab tsim ntau cov cytokines tseem ceeb.
Lub xovtooj twg ua rau cov kabmob kis kabmob?
Ib hom T cell hu ua a cytotoxic T cell vim tias nws tua cov hlwb uas kis tus kab mob nrog cov tshuaj lom neeg nruab nrab. Cytotoxic T hlwb muaj cov protein tshwj xeeb ntawm lawv qhov chaw uas pab lawv paub txog cov kab mob kis tau.
CD8 hlwb ua dab tsi?
CD8-zoo T hlwb yog ib qho tseem ceeb subpopulation ntawm MHC chav kawm I-tso tseg T cell thiab yog tus neeg nruab nrab ntawm kev tiv thaiv kab mob. Lawv suav nrog cytotoxic T hlwb, uas yog ib qho tseem ceeb rau kev tua cov qog nqaij hlav cancer lossis kab mob kis, thiab CD8-zoo suppressor T hlwb, uas txwv qee hom kev tiv thaiv kab mob.
Cov kab mob ua kom T cells li cas?
Kab mob tuaj yeem nkag mus rau hauv hlwb los ntawm ob txoj hauv kev: qee tus kab mob tuaj yeem kis mus rau cov hlwb ncaj qha , ua rau rov ua cov kab mob hauv lub hlwb. Thaum lub sijhawm txheej txheem no, qee cov kab mob kis tau yuav raug degraded rau hauv peptide fragments, uas yuav nthuav tawm ntawm MHC chav kawm I molecules rau CD8+ T hlwb (I).
Npaj lymphocyte yog dab tsi?
Lymphocytes uas tsis tau ntsib antigenyog lub npe hu ua naïve lymphocytes. Lawv circulate tsis tu ncua los ntawm cov ntshav thiab lymphatic hlab ntsha thiabnyob rau hauv cov ntaub so ntswg peripheral. … Antigen-presenting cells taug kev los ntawm cov hlab ntsha lymphatic los ntawm qhov chaw kis kab mob mus rau cov qog ntshav tawm.
Pom zoo:
Txoj kev twg ntawm cov kab mob sib xyaw ua ke cuam tshuam nrog cov kab mob bacteriophages?
Transduction, txheej txheem ntawm caj ces recombination nyob rau hauv cov kab mob uas cov noob los ntawm ib tug tswv tsev cell (ib kab mob) yog incorporated rau hauv lub genome ntawm ib tug kab mob (bacteriophage) thiab ces nqa. mus rau lwm lub xov tooj ntawm tes thaum tus kab mob bacteriophage pib lwm lub voj voog ntawm kev kis kab mob.
Puas muaj kev cuam tshuam cuam tshuam qhov ua rau?
Thaum ua rau muaj kev cuam tshuam thiab kev sib raug zoo tuaj yeem tshwm sim nyob rau tib lub sijhawm, kev sib raug zoo tsis txhais hais tias ua rau. Kev ua txhaum yog siv rau cov xwm txheej uas qhov kev txiav txim A ua rau qhov tshwm sim B.
Yuav noj tshuaj tua kab mob puas cuam tshuam rau cov tshuaj tiv thaiv kab mob?
Nws puas muaj kev nyab xeeb los txhaj tshuaj tiv thaiv COVID-19 nrog tshuaj tua kab mob? Tsis muaj kev cuam tshuam lossis cuam tshuam ntawm cov tshuaj tua kab mob thiab tshuaj tiv thaiv COVID-19, yog li thaum qhia, tshuaj tua kab mob tuaj yeem noj txhua lub sijhawm cuam tshuam nrog kev tswj hwm tshuaj tiv thaiv COVID-19.
Lub sijhawm cuam tshuam-driven io voj voog dab tsi ua rau muaj kev cuam tshuam?
CPU muaj cov kab thov cuam tshuam uas tau hnov tom qab txhua qhov kev qhia. Ib lub cuab yeej tswj hwm tsa qhov cuam tshuam los ntawm lees paub lub teeb liab ntawm kev cuam tshuam thov kab. CPU tom qab ntawd ua lub xeev txuag, thiab hloov kev tswj mus rau qhov cuam tshuam tus neeg ua haujlwm niaj hnub ntawm qhov chaw nyob ruaj khov hauv nco.
Tus kab mob paranasal qhov twg feem ntau cuam tshuam los ntawm tus kab mob?
Paranasal sinus mucocele tshwm sim feem ntau hauv lub frontal thiab ethmoidal sinuses. Cov tsos mob, uas nyob ntawm qhov chaw ntawm kev koom tes thiab kev taw qhia thiab kev nthuav dav, muaj xws li mob, lub ntsej muag o los yog deformity, proptosis, enophthalmos, diplopia, rhinorrhea, thiab qhov ntswg obstruction.
