Video: Cov hlwb dab tsi koom nrog hauv kev tiv thaiv tsis tshwj xeeb?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Nonspecific tiv thaiv cell. Ib lub xov tooj ntawm tes tsis yog tshwj xeeb yog lub cev tiv thaiv kab mob (xws li a macrophage , neutrophil , los yog dendritic cell ) uas teb rau ntau antigens, tsis yog ib qho antigen. Cov kab mob tsis muaj kab mob tshwj xeeb ua haujlwm hauv thawj kab ntawm kev tiv thaiv kab mob los yog raug mob.
Ib yam li ntawd, ib tug yuav nug, leej twg ntawm cov hlwb hauv qab no koom nrog kev tiv thaiv tsis raug cai?
Cov innate leukocytes muaj xws li: natural killer hlwb , mav hlwb , eosinophils, basophils; thiab phagocytic hlwb suav nrog macrophages, neutrophils, thiab dendritic hlwb , thiab ua haujlwm hauv lub tiv thaiv kab mob system los ntawm kev txheeb xyuas thiab tshem tawm cov kab mob uas yuav ua rau muaj kab mob.
Tsis tas li ntawd, dab tsi yog qhov kev tiv thaiv kab mob tsis tshwj xeeb? INNATE IMMUNITY . Innate , los yog tsis meej , kev tiv thaiv yog kev tiv thaiv kab ke uas koj tau yug los. Nws tiv thaiv koj tawm tsam tag nrho cov antigens. Tsis muaj kev tiv thaiv Muaj cov kev txwv uas ua rau cov khoom tsis zoo nkag mus rau hauv koj lub cev. Cov teeb meem no tsim thawj kab ntawm kev tiv thaiv nyob rau hauv lub kev tiv thaiv kab mob.
Tom qab ntawd, lo lus nug yog, dab tsi yog cov cell uas koom nrog hauv qhov tsis tshwj xeeb thiab tshwj xeeb cov lus teb tiv thaiv kab mob?
Pab T- hlwb , cytotoxic T- hlwb , thiab B- hlwb yog koom nrog hauv kev tiv thaiv tshwj xeeb . Cov cov cell tsis tshwj xeeb , zoo li macrophages, qhia T- thiab B- hlwb hais tias muaj intruder. Cov macrophages qhia T- thiab B- hlwb ib feem ntawm cov kab mob, hu ua antigens, yog li lawv paub tias yuav nrhiav dab tsi.
Hom cell twg koom nrog hauv kev tiv thaiv kab mob hauv lub cev?
Ua kom lub cev tsis muaj zog. Innate immune cells yog cov qe ntshav dawb uas kho kom haum xeeb innate tiv thaiv thiab suav nrog cov basophils , dendritic hlwb, eosinophils, Langerhans hlwb, mast hlwb, monocytes thiab macrophages, neutrophils thiab NK hlwb.
Pom zoo:
Cov ntsiav tshuaj daim ntawv twg muaj cov txheej tshwj xeeb uas tiv thaiv lub plab acid thiab ua rau cov tshuaj yaj hauv cov hnyuv?
Cov txheej txheej enteric yog cov txheej txheem polymer siv rau ntawm cov tshuaj hauv qhov ncauj uas tiv thaiv nws txoj kev tawg lossis tsis tawg hauv ib puag ncig lub plab
Cov kev tiv thaiv tsis tshwj xeeb tiv thaiv lub cev li cas?
Lub cev tsis muaj zog tiv thaiv kab mob no tsis muaj kev tiv thaiv tshwj xeeb los ntawm cov txheej txheem tiv thaiv, uas suav nrog cov teeb meem ntawm lub cev xws li tawv nqaij, teeb meem tshuaj lom neeg xws li cov tshuaj tua kab mob tua kab mob uas tsim kev puas tsuaj los yog rhuav tshem cov neeg tuaj txawv teb chaws, thiab cov cell uas tawm tsam cov cell txawv teb chaws thiab lub cev lub cev muaj cov kab mob sib kis
Dab tsi yog cov tshuaj tiv thaiv thiab lawv cuam tshuam nrog cov tshuaj tiv thaiv li cas?
Cov tshuaj tiv thaiv kab mob (immunoglobins) yog cov protein zoo li Y tsim los ntawm B hlwb ntawm lub cev tiv thaiv kab mob hauv kev teb rau kis rau antigens. Txhua cov tshuaj tiv thaiv muaj ib qho paratope uas paub txog ib qho epitope ntawm ib qho antigen, ua zoo li lub xauv thiab qhov tseem ceeb binding mechanism
Qhov kev tiv thaiv kab mob tshwj xeeb tsis yog dab tsi?
Cov lus teb tiv thaiv kab mob tshwj xeeb tsis yog antigen-ywj siab teb tam sim, tab sis nws tsis yog antigen-tshwj xeeb. Tsis muaj kev tiv thaiv tshwj xeeb ua rau tsis muaj lub cim xeeb immunologic. Lub cev tsis muaj zog tiv thaiv kab mob cuam tshuam nrog cov cell uas antigens tsis meej txog kev sib ntaus sib tua
Cov hlwb twg koom nrog hauv kev tiv thaiv kev tiv thaiv?
Cov hlwb ntawm lub cev tiv thaiv kab mob yog lymphocytes - B hlwb thiab T hlwb. B hlwb, uas tau muab los ntawm cov leeg pob txha, dhau los ua cov cell uas tsim cov tshuaj tiv thaiv kab mob. T hlwb, uas paub tab hauv thymus, sib txawv rau hauv cov hlwb uas koom nrog hauv lymphocyte maturation, los yog tua cov kab mob uas muaj kab mob