缺氧协调了质母细胞瘤内的髓状细胞的空间景观,以影响生存率
Michael J Haley1,2, Leoma Bere1,2, James Minshull1,3
1Geoffrey Jefferson Brain Research Centre, Manchester Academic Health Science Centre, Northern Care Alliance NHS Foundation Trust, University of Manchester, Manchester, UK.
Science advances
|May 17, 2024
概括
质母细胞瘤 (GBM) 髓状细胞在瘤微环境 (TME) 中具有不同的空间模式. 这些模式受到缺氧和信号的影响,预测患者的生存结果.
科学领域:
- 在瘤学瘤学.
- 免疫学 免疫学 免疫学
- 癌症生物学 癌症生物学
背景情况:
- 髓状细胞在质母细胞瘤 (GBM) 中很丰富,但它们的空间组织以及瘤微环境 (TME) 中影响它们的因素尚不清楚.
- 了解髓状细胞异质性和局部化对于破译它们在GBM病原和进展中的作用至关重要.
研究的目的:
- 识别和空间绘制人类GBM TME内的多样化的髓状细胞种群.
- 确定驱动 GBM 中髓状细胞分离和功能的微环境因素.
- 研究骨髓状细胞空间分布与患者存活率之间的关联.
主要方法:
- 利用直角成像质量细胞计与单细胞和空间转录组分析相结合.
- 绘制了不同的髓状细胞群和它们在GBM TME中的位置.
- 在特定的瘤亚区域与临床结果数据相关的髓状细胞组成.
主要成果:
- 在GBM TME中确定了各种髓状细胞群体的独特和可复制的空间分区模式.
- 证明组织缺氧,区域化基因信号传递和细胞相互作用决定了髓状细胞的局部化.
- 发现了特定的GBM瘤亚区域,由髓状细胞组成定义,与患者存活有显著联系.
结论:
- 在GBM中髓状细胞亚群的空间组织不是随机的,而是受到特定的微环境线索的驱动.
- 在GBM TME内髓状细胞的分离,为瘤生物学提供了宝贵的见解.
- 髓状细胞的空间分布模式可以预测质母细胞瘤患者的临床结果.
更多相关视频
相关概念视频
Regulation of Angiogenesis and Blood Supply
2.6K
Rapidly dividing tumors, embryos, and wounded tissues require more oxygen than usual, lowering the oxygen concentration in the blood. At low oxygen or hypoxic conditions, an oxygen-sensitive transcription factor called the hypoxia-inducible factor 1 or HIF1 is activated. HIF1 is a dimeric protein of alpha (ɑ) and beta (β) subunits. Under optimal oxygen conditions, HIF1β is present in the nucleus while HIF1ɑ remains in the cytosol. HIF1ɑ is hydroxylated by prolyl...
2.6K
Adaptive Mechanisms in Cancer Cells
5.7K
Cancer cells accumulate genetic changes at an abnormally rapid rate due to the defects in the DNA repair mechanisms. From an evolutionary perspective, such genetic instability is advantageous for cancer development. Mutant cell lines accumulate a series of beneficial mutations that contribute to their progression into cancer.
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
5.7K


