[{"data":1,"prerenderedAt":69},["ShallowReactive",2],{"q-nurse-107-2-basic-medicine-069":3},{"subject":4,"subjectSlug":5,"subjectFullName":6,"question":7,"related":38,"lastmod":68},"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-107-2-基礎醫學-069","nurse-107-2-basic-medicine-069",107,2,69,"IgE 抗體會與其高親和力受體 FcεRI 相結合來誘發過敏反應，而 FcεRI 受體不表現在下列何種細胞表面？",{"A":15,"B":16,"C":17,"D":18},"肥大細胞（mast cell）","嗜鹼性球（basophil）","T 細胞","活化的嗜酸性球（activated eosinophil）","C",null,[],"本題考點在於高親和力 IgE 受體 FcεRI 的細胞分布。依免疫學，FcεRI 表現於介導第一型過敏反應的效應細胞——肥大細胞、嗜鹼性球，以及活化的嗜酸性球，唯獨 T 細胞表面不表現此受體，故選 C。A、B、D 皆為 FcεRI 陽性細胞：肥大細胞與嗜鹼性球是過敏去顆粒化主角，活化的嗜酸性球在慢性過敏發炎中亦表現 FcεRI。T 細胞透過 T 細胞受體辨識 MHC 呈現的抗原，與 IgE-FcεRI 路徑無關，故為正解。","FcεRI 有兩型：四聚體（αβγ2）高表現於肥大細胞、嗜鹼性球；三聚體（αγ2）表現於人類嗜酸性球、單核細胞、樹突細胞。IgE 結合 FcεRI 後遇多價過敏原交聯，觸發鈣內流與去顆粒化，釋出組織胺、白三烯、前列腺素。記憶對比：Fc 受體家族中，FcεRI 認 IgE、FcγR 認 IgG（調理與 ADCC）。T 細胞不參與抗體 Fc 依賴反應，是本題破口。",[25,28,31,33,36],{"term":26,"count":27},"第一型過敏反應",12,{"term":29,"count":30},"肥大細胞",3,{"term":32,"count":11},"FcεRI",{"term":34,"count":35},"IgE 受體",1,{"term":37,"count":35},"嗜鹼性球",[39,43,48,53,58,63],{"webId":40,"stem":41,"number":42,"year":10,"session":11},"nurse-107-2-basic-medicine-070","臘腸桿菌毒素（Botulinum toxin）可以用於美容除皺之機制為何？",70,{"webId":44,"stem":45,"number":46,"year":47,"session":11},"nurse-108-2-basic-medicine-006","下列有關肺部的敘述，何者正確？",6,108,{"webId":49,"stem":50,"number":51,"year":52,"session":35},"nurse-109-1-basic-medicine-020","下列那一腦區病變最可能造成表達性失語症（expressive aphasia）？",20,109,{"webId":54,"stem":55,"number":56,"year":57,"session":35},"nurse-110-1-basic-medicine-058","Alteplase 主要用於治療急性缺血性中風、心肌梗塞、肺栓塞、深部靜脈栓塞，其藥理作用機轉為何？",58,110,{"webId":59,"stem":60,"number":61,"year":62,"session":11},"nurse-111-2-basic-medicine-022","有關重症肌無力（myasthenia gravis）病人之敘述，下列何者正確？",22,111,{"webId":64,"stem":65,"number":66,"year":67,"session":35},"nurse-113-1-basic-medicine-016","下列腎臟構造中，何者最靠近腎門（renal hilum）？",16,113,"2026-09-04",1788510723944]