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增加泛型,A1型和A2型星球细胞激活和上游炎症标记物是由P2X7受体诱导的

Keith E Campagno¹, Puttipong Sripinun², Lily P See³

¹Department of Basic and Translational Science, University of Pennsylvania, Philadelphia, PA 19104, USA.

International journal of molecular sciences

|August 29, 2024

概括

P2X7受体对于在视网膜中触发混合A1/A2天体细胞激活在眼内压力升高 (IOP) 后至关重要,这是青光眼的关键因素.

科学领域:

神经科学是一个神经科学.
眼科医生眼科眼科
免疫学免疫学免疫学

背景情况:

星球细胞激活在神经炎症和眼睛疾病 (如青光眼) 中起着至关重要的作用.
P2X7受体 (P2X7R) 参与炎症反应,但其在青光眼期间天体细胞两极分化中的具体作用尚不清楚.

研究的目的:

调查P2X7受体是否对于星球细胞偏向到神经炎症状态是必要的和足够的.
确定P2X7R在高眼内压 (IOP) 后的质激活中的作用.

主要方法:

在小鼠体内注射P2X7R激动剂BzATP.
测量天体细胞激活标记基因表达 (泛-,A1-,和A2型).
在野生类型和P2X7受体淘汰 (P2X7-/-) 小鼠中诱导升高的IOP.

主要成果:

刺激BzATP诱导了混合的A1/A2天体细胞激活状态,主要是A1标记物的增加.
野生型小鼠的高IOP导致了类似的混合质激活模式.
在P2X7-/-小鼠中,高IOP后的质激活不存在,这表明P2X7R是必要的.

结论:

在IOP升高后,P2X7受体刺激是必要的,并且足以诱导视网膜中的混合星球细胞激活.
激活P2X7R会导致泛细胞,A1细胞和A2细胞标记物的上调.
需要进一步调查P2X7受体在连接机械敏感ATP释放与青光眼中的质两极分化中的作用.

关键词:

C3 C3 C3 C3 C3 C3 C3 C3 C3 C3 C3 C3 C3 C3 C3 C3 C3 C3 C3 C3 这是一个P2X7P2X7P.玻璃眼 glaucoma 玻璃眼玻璃眼玻璃眼玻璃眼微质细胞中的微质细胞神经炎症是一种神经炎症.神经毒性星球细胞偏振视网膜质细胞是视网膜质细胞

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