Cov Lus Nug Piv Txwv Kev Sib Tham Txog Kev Tiv Thaiv Sab Hauv Tshwj Xeeb (Antigen-Antibody)
Lub cev tiv thaiv kab mob yog ib txoj hauv kev nyuaj uas tiv thaiv lub cev ntawm cov kab mob xws li cov kab mob me me, cov kab mob virus, thiab cov kab mob parasitic. Muaj ob hom kev tiv thaiv kab mob tseem ceeb: kev tiv thaiv tsis tshwj xeeb (innate) thiab kev tiv thaiv tshwj xeeb (adaptive). Kev tiv thaiv sab hauv tshwj xeeb, tseem hu ua kev tiv thaiv kab mob hloov pauv, suav nrog B cell thiab T cell, nrog rau kev tsim cov tshuaj tiv thaiv kab mob los teb rau cov antigens tshwj xeeb. Hauv tsab xov xwm no, peb yuav tham txog cov piv txwv thiab tham txog qhov kev tiv thaiv sab hauv tshwj xeeb no, tshwj xeeb tshaj yog cov txheej txheem ntawm kev sib cuam tshuam ntawm antigen-antibody.
To taub Antigens thiab Antibodies
Ua ntej peb nkag mus rau hauv kev sib tham ntawm cov lus nug, cia peb xub nkag siab txog lub tswv yim ntawm antigens thiab antibodies.
– Antigen: Ib qho molecule uas lub cev tiv thaiv kab mob pom tias yog lwm yam thiab muaj peev xwm ua rau lub cev tiv thaiv kab mob teb. Feem ntau, qhov no yog ib qho protein lossis polysaccharide nyob rau ntawm qhov chaw ntawm cov kab mob xws li cov kab mob me me thiab cov kab mob virus.
– Cov Tshuaj Tiv Thaiv Kab Mob (Immunoglobulins): Cov protein uas cov qe ntshav B tsim los teb rau cov antigens tshwj xeeb. Cov tshuaj tiv thaiv kab mob paub thiab khi rau cov antigens, cim cov kab mob kom lwm yam khoom ntawm lub cev tiv thaiv kab mob puas tsuaj.
Cov Lus Nug thiab Kev Sib Tham Piv Txwv
Hauv qab no yog qee cov lus nug piv txwv uas yuav pab nkag siab txog cov txheej txheem tiv thaiv sab hauv, tshwj xeeb tshaj yog nyob rau hauv cov ntsiab lus ntawm antigen-antibody.
Lo lus nug thib 1:
Piav qhia seb cov qe ntshav B ua haujlwm li cas thiab ua lub luag haujlwm hauv cov lus teb tiv thaiv kab mob tshwj xeeb.
Kev Sib Tham:
1. Kev Paub Txog Antigen:
– Cov qe ntshav B muaj cov receptors tshwj xeeb ntawm lawv qhov chaw uas tuaj yeem paub thiab khi rau cov antigens tshwj xeeb. Thaum cov antigen khi tau zoo, nws qhia tias B cell ua haujlwm.
2. Txheej Txheem Ua Kom Muaj Kev Ua Haujlwm:
– Kev ua kom cov qe ntshav B ua haujlwm tsis yog tsuas yog xav tau kev khi rau cov antigen xwb tab sis kuj xav tau kev pab los ntawm cov qe ntshav T pab (Th). Cov qe ntshav T pab uas tau ua haujlwm los ntawm antigen muab cov cim ntxiv (hauv daim ntawv ntawm cytokines) kom ua kom cov qe ntshav B ua haujlwm tag nrho.
3. Kev nthuav dav thiab kev sib txawv:
– Tom qab ua haujlwm tag nrho, cov qe ntshav B yuav loj hlob tuaj, faib ua cov qe ntshav B uas nco qab thiab cov qe ntshav plasma. Cov qe ntshav Plasma yog cov qe ntshav effector uas tsim cov tshuaj tiv thaiv tshwj xeeb rau cov antigen ntawd. Lub caij no, cov qe ntshav B uas nco qab tseem nyob hauv lub cev kom muab cov lus teb sai dua thiab muaj zog dua thaum tib lub antigen nkag mus rau hauv lub cev yav tom ntej.
4. Kev Tsim Tshuaj Tiv Thaiv Kab Mob:
- Cov qe ntshav hauv lub cev pib tsim cov tshuaj tiv thaiv kab mob tshwj xeeb rau cov antigen uas paub. Cov tshuaj tiv thaiv kab mob no ncig hauv cov ntshav thiab cov lymph, npaj txhij los muab kev tiv thaiv los ntawm kev ua kom cov kab mob tsis muaj zog lossis cim nws kom lwm cov qe ntshav tiv thaiv kab mob puas tsuaj.
Lo lus nug thib 2:
Cov tshuaj tiv thaiv kab mob ua lub luag haujlwm li cas hauv kev tshem tawm cov kab mob thiab cov tshuaj lom?
Kev Sib Tham:
1. Kev Ua Kom Tsis Muaj Kev Cuam Tshuam:
- Cov tshuaj tua kab mob tuaj yeem txuas ncaj qha rau ntawm qhov chaw ntawm cov kab mob / cov kab mob me me lossis cov tshuaj lom, tiv thaiv lawv kom tsis txhob nkag mus rau hauv lub cev cov hlwb vim tias qhov chaw uas cov kab mob khi tau raug thaiv.
2. Kev xaiv tsa:
- Thaum cov tshuaj tiv thaiv kab mob lo rau ntawm qhov chaw ntawm tus kab mob, lawv cim tus kab mob kom phagocytes (xws li macrophages thiab neutrophils) paub kom lawv thiaj li phagocytosed thiab rhuav tshem tau.
3. Kev Ua Kom Muaj Kev Txhawb Nqa:
- Qee hom tshuaj tiv thaiv kab mob tuaj yeem ua kom lub cev sib txuas ua haujlwm, uas yog cov protein hauv cov ntshav uas pab tua cov kab mob lossis pab txhawb cov txheej txheem ntawm phagocytosis.
4. Kev sib sau ua ke:
- Cov tshuaj tua kab mob muaj peev xwm ua rau muaj kev sib sau ua ke lossis sib sau ua ke ntawm cov hlwb kab mob, uas yooj yim dua rau phagocytose thiab tseem txo qhov kev sib kis ntawm cov kab mob hauv lub cev.
Lo lus nug thib 3:
Qhov txawv tseem ceeb ntawm cov qe ntshav T thiab cov qe ntshav B hauv kev teb tiv thaiv kab mob yog dab tsi? Sau ib qho zoo sib xws thiab ib qho txawv.
Kev Sib Tham:
- Kev Sib Luag:
– Ob hom hlwb no yog cov khoom tseem ceeb ntawm lub cev tiv thaiv kab mob, ua lub luag haujlwm hauv kev lees paub thiab nco qab cov antigens tshwj xeeb. Ob lub hlwb T thiab cov hlwb B muaj cov receptors tshwj xeeb rau cov antigens tshwj xeeb ntawm lawv qhov chaw.
- Qhov txawv:
- Cov qe ntshav B ua haujlwm tseem ceeb hauv kev tsim cov tshuaj tiv thaiv kab mob, uas tuaj yeem ncig dav hauv cov ntshav thiab ua rau cov kab mob sab nraud.
- Cov qe ntshav T, ntawm qhov tod tes, muaj ob hom tseem ceeb nrog lub luag haujlwm sib txawv: cov qe ntshav T pab uas pab ua kom cov qe ntshav B ua haujlwm thiab cov qe ntshav tua (cytotoxic) T uas tuaj yeem tawm tsam thiab tua cov qe ntshav uas muaj tus kab mob lossis cov qe ntshav qog.
Lo lus nug thib 4:
Vim li cas kev txhaj tshuaj tiv thaiv kab mob thiaj suav tias yog kev siv tau tiag tiag ntawm cov lus teb tiv thaiv kab mob tshwj xeeb?
Kev Sib Tham:
Kev txhaj tshuaj yog ib txoj kev uas siv lub cev tiv thaiv kab mob lub cim xeeb. Los ntawm kev muab ib qho antigen uas tsis muaj zog lossis tsis ua haujlwm rau hauv lub cev, lub cev tiv thaiv kab mob raug txhawb kom tsim cov lus teb tiv thaiv kab mob thawj zaug, suav nrog kev tsim cov qe ntshav B nco qab tshwj xeeb rau cov antigen txhaj tshuaj. Yog tias ib tus neeg txhaj tshuaj raug rau tus kab mob tiag tiag yav tom ntej, lawv lub cev tau npaj los tsim cov lus teb thib ob sai dua thiab zoo dua piv rau tus neeg tsis tau txhaj tshuaj.
1. Kev Txhawb Nqa Kev Nco Txog Kab Mob:
Los ntawm kev txhaj tshuaj tiv thaiv kab mob, lub cev tiv thaiv kab mob yuav npaj txhij los paub thiab tua cov kab mob tiag tiag sai dua.
2. Txo Cov Kab Mob Hnyav:
- Los ntawm kev txhim kho lub zog tiv thaiv kab mob tshwj xeeb yam tsis tas yuav muaj mob hnyav, kev txhaj tshuaj tiv thaiv kab mob tiv thaiv cov tib neeg ntawm cov kab mob uas tuaj yeem ua rau tuag taus lossis ua rau tsis taus.
Xaus lus, kev nkag siab zoo txog cov txheej txheem ntawm lub cev tiv thaiv kab mob thiab kev sib cuam tshuam ntawm antigen-antibody yog qhov tseem ceeb hauv biology thiab tshuaj. Tshwj xeeb tshaj yog hauv kev tiv thaiv thiab kev tswj hwm cov kab mob sib kis, kev paub no tsis yog tsuas yog siv rau hauv kev tsim cov kev kho mob thiab cov tshuaj tiv thaiv kab mob xwb tab sis kuj yog lub hauv paus rau ntau yam kev hloov pauv tshiab hauv kev kho mob tiv thaiv kab mob rau cov kab mob autoimmune thiab mob qog noj ntshav. Los ntawm kev xyaum thiab kev sib tham txog cov teeb meem, kev paub no tuaj yeem ua kom tob dua thiab siv tau zoo dua.
