問題詳情

50.下列關於HIV(Human immunodeficiency virus)的敘述,何者錯誤?
(A)M-tropic病毒會利用CXCR4當作其細胞的受器之一
(B)T-tropic病毒通常會隨著病人病程的進展而增加
(C)Kaposi’s sarcoma是常見於愛滋病人的癌症
(D)CD4 T細胞數目降至200/µL 以下,易出現伺機性感染

參考答案

答案:A
難度:困難0.392857
統計:A(33),B(30),C(5),D(0),E(0)

用户評論

kid】評論

T-tropic才是CXCR4

Chris】評論

The  co-receptor  used  upon  initial infection by HIV is CCR5, which is expressed on myeloid and peripheral, activated, central memory, intestinal, and other  subsets  of  CD4  T  cells  (macrophages,  [M]-tropic virus). Later, during chronic infection of a person, the env gene mutates so that the gp120 binds to a different chemokine  receptor  (CXCR4),  which  is  expressed  primarily  on T cells (T-tropic virus)

Asuka】評論

愛滋病是重要考點伺機性感染的疾病gag, pol, 表面的gp120, CXCR4, CCR5等等也一定要搞清楚