Bone Physiopathology laboratory, Applied Molecular Medicine Institute (IMMA), Universidad San Pablo-CEU, CEU Universities, Campus Monteprincipe, 28925, Alcorcón, Madrid, Spain.
Departamento de Ciencias Médicas Básicas, Facultad de Medicina, Universidad San Pablo-CEU,CEU Universities, Campus Monteprincipe, 28925, Alcorcón, Madrid, Spain.
Curr Osteoporos Rep. 2020 Dec;18(6):796-802. doi: 10.1007/s11914-020-00641-z. Epub 2020 Nov 13.
Diabetes mellitus is a prevalent chronic disease affecting millions of people in the world. Bone fragility is a complication found in diabetic patients. Although osteoblasts and osteoclasts are directly affected by diabetes, herein we focus on how the diabetic state-based on hyperglycemia and accumulation of advanced glycation end products among other features-impairs osteocyte functions exerting deleterious effects on bone.
In the last years, several studies described that diabetic conditions cause morphological modifications on lacunar-canalicular system, alterations on osteocyte mechanoreceptors and intracellular pathways and on osteocyte communication with other cells through the secretion of proteins such as sclerostin or RANKL. This article gives an overview of events occurring in diabetic osteocytes. In particular, mechanical responses seem to be seriously affected in these conditions, suggesting that mechanical sensibility could be a target for future research in the field.
糖尿病是一种常见的慢性疾病,影响着全球数百万人。脆性骨折是糖尿病患者的一种并发症。虽然成骨细胞和破骨细胞直接受到糖尿病的影响,但在这里我们重点关注糖尿病状态——基于高血糖和高级糖基化终产物的积累等特征——如何损害骨细胞功能,对骨骼产生有害影响。
在过去的几年中,有几项研究描述了糖尿病状态导致陷窝-小管系统的形态改变,改变了骨细胞机械感受器和细胞内途径,以及骨细胞通过分泌骨硬化蛋白或 RANKL 等蛋白与其他细胞的通讯。本文概述了糖尿病骨细胞中发生的事件。特别是,在这些情况下,机械反应似乎受到严重影响,这表明机械敏感性可能是该领域未来研究的一个目标。