[{"data":1,"prerenderedAt":64},["ShallowReactive",2],{"q-nurse-106-2-basic-medicine-066":3},{"subject":4,"subjectSlug":5,"subjectFullName":6,"question":7,"related":34,"lastmod":63},"基礎醫學","basic-medicine","基礎醫學(包括解剖學、生理學、病理學、藥理學、微生物學與免疫學)",{"id":8,"webId":9,"year":10,"session":11,"subject":4,"number":12,"stem":13,"options":14,"answer":19,"answerNote":20,"images":21,"explanation":22,"explanationDeep":23,"topics":24,"freq":27},"nurse-106-2-基礎醫學-066","nurse-106-2-basic-medicine-066",106,2,66,"下列分子可與 B7-1\u002FB7-2（CD80\u002FCD86）結合後，抑制 T 細胞活化的為：",{"A":15,"B":16,"C":17,"D":18},"CD28","CTLA-4（CD152）","CD4","CD2","B",null,[],"本題考點為 T 細胞活化的共同刺激與抑制訊號。CTLA-4(CD152)與 B7-1\u002FB7-2(CD80\u002FCD86)結合的親和力高於 CD28,傳遞抑制訊號下調 T 細胞活化,選 B。A CD28 同樣結合 B7,但傳遞的是活化(共同刺激)訊號,方向相反。C CD4 為輔助結合 MHC 第二類的共受體。D CD2 參與細胞黏附與輔助活化,均非結合 B7 傳遞抑制訊號者,故錯。","T 細胞完全活化需訊號一(TCR-MHC\u002F胜肽)加訊號二(CD28-B7 共同刺激)。CTLA-4 於活化後上調,以更高親和力搶占 B7、剎車免疫反應,維持自體耐受。此即免疫檢查點:抗 CTLA-4(ipilimumab)可解除剎車增強抗腫瘤,是免疫療法基礎。記憶:CD28 是『油門』、CTLA-4 是『煞車』,同搶 B7。",[25,28,30,32],{"term":26,"count":27},"CTLA-4 CD152",1,{"term":29,"count":27},"B7-1\u002FB7-2 CD80\u002FCD86",{"term":31,"count":27},"共同刺激訊號 CD28",{"term":33,"count":27},"免疫檢查點",[35,39,44,49,54,59],{"webId":36,"stem":37,"number":38,"year":10,"session":11},"nurse-106-2-basic-medicine-067","下列何種細胞激素，可刺激嗜酸性白血球分泌媒介物，引起氣喘？",67,{"webId":40,"stem":41,"number":42,"year":43,"session":11},"nurse-107-2-basic-medicine-003","下列何者具有產生大量熱的功能？",3,107,{"webId":45,"stem":46,"number":47,"year":48,"session":27},"nurse-108-1-basic-medicine-017","核仁（nucleolus）的主要功能為何？",17,108,{"webId":50,"stem":51,"number":52,"year":53,"session":27},"nurse-109-1-basic-medicine-055","使用下列何種藥物，最易導致潛在結核病（latent tuberculosis）復發？",55,109,{"webId":55,"stem":56,"number":57,"year":58,"session":11},"nurse-110-2-basic-medicine-019","有關促進睪固酮分泌之敘述，下列何者正確？",19,110,{"webId":60,"stem":61,"number":42,"year":62,"session":27},"nurse-112-1-basic-medicine-003","下列何者屬於顏面表情肌？",112,"2026-09-04",1788510696775]