MicroRNA-29b promotes the adipogenic differentiation of human adipose tissue-derived stromal cells.

Zhang, Xi-Mei; Wang, Li-Hong; Su, Dong-Ju; Zhu, Dan; Li, Qiu-Ming; Chi, Mei-Hua · Obesity (Silver Spring) · 2016

basic_science · Level V

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Abstract

Obesity is primarily characterized by the accumulation of large amounts of fat in adipose tissue. Within the adipose tissue, adipocytes are derived from adipose tissue-derived stromal cells (ADSCs) via a specialized cell lineage differentiation process, and ADSCs play a key role in the generation and metabolism of adipose tissue. This study investigated whether microRNAs (miRNAs) play a role in adipocyte differentiation. Using luciferase reporter and ChIP assays, the relationship between miR-29b, SP1, and TNF-α was examined. During the normal adipogenic differentiation of ADSCs, up-regulation of miR-29b promoted adipogenesis by enhancing SP1-mediated inhibition of TNF-α. This study investigated the regulatory role of miR-29b during the adipogenic differentiation of ADSCs and found that miR-29b is an effective positive regulator of adipogenesis.

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