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由于对ITPR2/3的降低调节,BMAL1缺乏导致口腔和眼睛干燥
Xiaozhao Zhang1, Guangjin Chen2, Yan He1
1Beijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Key Laboratory of Ophthalmology and Visual Sciences, Beijing, 100000, China.
The ocular surface
|September 29, 2024
概括
关键的昼夜调节器BMAL1对于和唾液的产生至关重要. 缺少它会导致腺体功能障碍和眼睛/口腔干燥,但不是Sjogren.
科学领域:
- 循环生物学的日间生物.
- 腺体生理学腺体生理学
- 分子机制的分子机制
背景情况:
- 分泌腺产生眼和唾液,这对眼睛和口腔健康至关重要.
- 与昼夜节律障碍相关的腺功能障碍尚未得到充分了解.
- BMAL1是昼夜系统的核心组成部分.
研究的目的:
- 研究BMAL1在调节分泌腺功能中的作用.
- 阐明BMAL1介导调节背后的分子机制.
- 探索与节律障碍相关的干眼和口腔干燥的治疗潜力.
主要方法:
- 使用Bmal1缺乏的老鼠模型.
- 检查了状细胞形态和亡.
- 分析了ITPR2和ITPR3.3的基因表达.
- 评估分泌腺功能和干眼/口腔症状.
主要成果:
- 丧失BMAL1导致了细胞真空化,缩,亡和功能低下,但不是Sjogren综合征.
- BMAL1直接调节ITPR2和ITPR3的转录,影响乳酸铁素和酶的分泌.
- 在Bmal1缺乏的老鼠中恢复ITPR2/ITPR3改善了腺体功能,并减少了干眼/口腔症状.
结论:
- BMAL1对于维持唾液和眼腺分泌是必不可少的.
- BMAL1通过ITPR2和ITPR3.3影响腺体功能.
- 准BMAL1或其下游途径为口腔干燥和眼睛干燥提供了潜在的治疗方法.
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