使用TCR-Vγδ可以区分突起和抗瘤肠道γδ T 细胞子集
Bernardo S Reis1, Patrick W Darcy1, Iasha Z Khan1
1Laboratory of Mucosal Immunology, The Rockefeller University, New York, NY 10065, USA.
概括
在结直肠癌 (CRC) 的发展中,马三角 (γδ) T 细胞具有双重作用. 它们最初具有细胞毒性,但在瘤中变成原原体,影响CRC的进展.
科学领域:
- 免疫学
- 癌症学
- 胃肠病学
背景情况:
- 在恒常状态期间,马三角形 (γδ) T 细胞在肠道内膜中大量存在.
- 这些细胞也在结直肠癌 (CRC) 中发现,但它们在癌症发展中的具体作用尚未完全理解.
研究的目的:
- 研究gδ T细胞在结肠直肠癌 (CRC) 的发展和进展中的时间作用.
- 了解 γδ T 细胞功能如何从癌前阶段转变为已建立的瘤.
主要方法:
- 对人类CRC样本和小鼠CRC模型的分析.
- γδ T 细胞标记物和 T 细胞受体 (TCR) -Vγδ 基因使用的特征.
- 在小鼠中使用纵向交叉遗传学和抗体依赖策略.
主要成果:
- 瘤前/非瘤的结肠 γδ T 细胞表现出细胞毒性标记,而瘤透的 γδ T 细胞表现出前瘤性特征.
- 不同的TCR-Vγδ基因使用与这些不同的γδT细胞表型相关.
- 针对平稳状态的甲状腺 γδ T 细胞加剧了瘤的发展.
- 向CRC累积的γδT细胞子集减少了瘤的生长.
结论:
- 在CRC中,γδ T细胞表现出动态的,取决于环境的作用.
- 早期的γδ T细胞可能具有抗瘤功能,而晚期的瘤相关的γδ T细胞可以促进CRC的进展.
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