NATURE:儿童小脑肿瘤的发育起源

2019-05-04 海北 MedSci原创

最近,研究人员使用单细胞转录组学来研究来自发育中的小鼠小脑的超过60,000个细胞,并且显示儿童小脑肿瘤的不同分子亚群反映了来自不同的,时间上受限制的小脑谱系的细胞转录。

关于小脑肿瘤的起源和发展的研究受到在发育过程中发生变化的小脑细胞的复杂性和异质性的阻碍。

最近,研究人员使用单细胞转录组学来研究来自发育中的小鼠小脑的超过60,000个细胞,并且显示儿童小脑肿瘤的不同分子亚群反映了来自不同的,时间上受限制的小脑谱系的细胞转录。

Sonic Hedgehog成神经管细胞瘤亚组转录反映了预期的颗粒细胞层次,而第3组成神经管细胞瘤类似于Nestin +干细胞,第4组成神经管细胞瘤类似于单极刷细胞,PFA / PFB室管膜瘤和小脑毛细胞星形细胞瘤类似于产前的神经胶质祖细胞。

此外,人类儿童小脑肿瘤的单细胞转录组学证明许多大块肿瘤含有具有不同分化的混合细胞群。

因此,该数据突出显示小脑肿瘤是早期大脑发育的一种疾病,并为儿童早期小脑肿瘤的高峰发病率提供了近似的解释。


原始出处:

Vladoiu MC et al. Childhood cerebellar tumours mirror conserved fetal transcriptional programs. NATURE, 2019; doi: 10.1038/s41586-019-1158-7. 


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    2019-06-05 liye789132251
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    2019-05-06 neurowu
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