試題詳解

144. 下列是「癌細胞逃脫(evade)免疫系統 (Immune evasion) 」的眾多機制，請選出所有正確的可能機 制：(1) Induction of cytotoxic T-lymphocyte-associated protein 4 (CTLA-4) 。(2) Downregulation of cell surface proteins involved in immune recognition (such as major histocompatibility complex MHC proteins, etc.)。(3) Elaboration of immunosuppressive cytokines 。(4) Downregulation of T regulatory cells (Treg)。(5) Upregulation of myeloid-derived suppressor cells (MDSC)
(A) (2)+(3)+(4)。
(B) (3)+(4)+(5)。
(C) (1)+(2)+(4)+(5)。
(D) (1)+(2)+(3)+(5)。
(E) (1)+(2)+(3)+(4)+(5)。