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PLos One:手术标本分离肺内膜肉瘤细胞的表征

2019-03-30 xiangting MedSci原创

肺内膜肉瘤(PIS)是一种源自肺动脉内膜细胞的罕见肉瘤。目前PIS的发病机制还有待阐明,尚无具体的治疗方法;因此,其预后通常较差。这项研究目的是从PIS患者切除的标本中分离和表征PIS细胞。将手术标本切碎并孵育,成功分离纺锤形的小细胞并命名为PIS-1。将第8-9代的PIS-1细胞用于所有的体外和体内实验。免疫细胞化学显示PIS-1细胞波形蛋白、鼠双微体2和CD44阳性,而α-平滑肌肌动蛋白、CD

肺内膜肉瘤(PIS)是一种源自肺动脉内膜细胞的罕见肉瘤。目前PIS的发病机制还有待阐明,尚无具体的治疗方法;因此,其预后通常较差。这项研究目的是从PIS患者切除的标本中分离和表征PIS细胞。

将手术标本切碎并孵育,成功分离纺锤形的小细胞并命名为PIS-1。将第8-9代的PIS-1细胞用于所有的体外和体内实验。免疫细胞化学显示PIS-1细胞波形蛋白、鼠双微体2和CD44阳性,而α-平滑肌肌动蛋白、CD31、假性血友病因子和结蛋白阴性。PIS-1细胞表现出恶性细胞的标志,包括自主增殖、锚定非依赖性生长、侵袭、遗传不稳定性和在严重联合免疫缺陷小鼠中的致瘤性。PIS-1细胞高度表达酪氨酸激酶受体,如血小板衍生生长因子受体和血管内皮生长因子受体2。帕唑帕尼是一种多靶点酪氨酸激酶抑制剂,可以抑制体外PIS-1细胞的增殖以及由异种移植PIS-1细胞形成肿瘤的生长。因此成功建立了PIS细胞系。

PIS-1细胞高度表达酪氨酸激酶受体,其可作为治疗PIS的靶点。

原始出处:

Takayuki Jujo Sanada. Characterization of pulmonary intimal sarcoma cells isolated from a surgical specimen: In vitro and in vivo study. PLos One. 29 March 2019.

本文系梅斯医学(MedSci)原创编译整理,转载需授权!

 

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    2019-03-30 中医痴

    不错的,学习了,谢谢分享!

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