V2EX t cell

T Cell

释义 Definition

T细胞(T淋巴细胞):一种源自胸腺成熟的淋巴细胞,是适应性免疫的重要成员,主要负责识别抗原并协调免疫反应或直接杀伤被感染/异常的细胞。常见类型包括辅助性T细胞(Helper T)细胞毒性T细胞(Cytotoxic T)等。(在不同语境下也可指特定亚群,如调节性T细胞 Treg。)

发音 Pronunciation (IPA)

/ti sl/

例句 Examples

T cells help your body fight infections.
T细胞帮助你的身体对抗感染。

After vaccination, memory T cells can respond faster if the same pathogen appears again.
接种疫苗后,记忆T细胞在同一种病原体再次出现时能更快做出反应。

词源 Etymology

“T cell”中的 T 来自 thymus(胸腺),因为这类淋巴细胞在胸腺中完成关键的发育与选择过程;“cell”意为“细胞”。该术语在现代免疫学发展中逐渐固定,用于与 B cell(B细胞)等免疫细胞类型区分。

相关词 Related Words

文学与著作中的用例 Notable Works

  • Janeway’s Immunobiology(《詹韦免疫生物学》)
  • Robbins and Cotran Pathologic Basis of Disease(《罗宾斯与科特兰疾病的病理学基础》)
  • Molecular Biology of the Cell(《细胞的分子生物学》)
  • The Emperor of All Maladies by Siddhartha Mukherjee(《众病之王》)
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