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在雌性C57BL/6小鼠中,衰老降低了骨细胞缺口-管周转率

Ghazal Vahidi, John Connor Boone, Fawn Hoffman

bioRxiv : the preprint server for biology

|January 3, 2024

概括

骨质细胞在骨重塑中的活性,称为沟-沟系统 (LCS) 周转,随着年龄的增长而下降. 这种与年龄相关的LCS周转率下降会影响骨质和骨质感应,特别是在结骨中.

科学领域:

骨生物学骨生物学骨生物学
细胞衰老细胞衰老
骨机械学骨机械学

背景情况:

骨质细胞通过沟管系统 (LCS) 循环调节骨重塑,涉及再吸收和矿化.
关于LCS营业额的时空动态和与年龄相关的变化,仍然存在一些基本问题.
组织应变对LCS周转的影响在很大程度上是未被探索的.

结论:

衰老显著降低了骨质细胞液体细胞循环,影响骨矿化和再吸收.
衰老对LCS周转的影响因骨区域和位置而异,表明可能依赖于机械应变.
随着年龄的增长,LCS循环减少可能会损害骨质量和骨质细胞在机械感知中的作用.

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