Reactive oxygen species regulate adipose-osteogenic lineage commitment of human mesenchymal stem cells by modulating gene expression of C/EBP homology protein and aldo-keto reductase family 1 member A1.

Chen Hao Chiang, Yu-Chieh Kao, Yi-Hui Lin, Yi-Shing Ma, Yu-Ting Wu, Bo-Yan Jian, Yau-Huei Wei, Chuan-Mu Chen, Ying-Ming Liou

Department of Orthopaedics, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chiayi, 600, Taiwan.Department of Orthopaedics, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chiayi, 600, Taiwan. · pubmed

Paper

Abstract

Bone-derived mesenchymal stem cells (BMSCs) are multipotent stem cells capable of differentiating into adipocytes and osteoblasts. Dysfunctional differentiation, characterized by a shift from osteoblastogenesis to adipogenesis, is closely associated with metabolic and senile osteoporosis. The Aldo-keto reductase family 1 member A1 (Akr1A1) enzyme, which utilizes NADPH to reduce aldehyde groups to alcohols, has emerged as a potential regulator. This study investigates the role of reactive oxygen species (ROS) in modulating Akr1A1 expression during the lineage differentiation of human mesenchymal stem cells into osteoblasts and adipocytes.

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Research summary

Reactive oxygen species regulate the expression of Akr1A1, influencing the differentiation of human mesenchymal stem cells into osteoblasts and adipocytes. The study addresses the mechanisms underlying dysfunctional differentiation in stem cells, which is relevant to age-related metabolic conditions like osteoporosis.

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