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首页> 外文期刊>The FASEB Journal >Determination of mesenchymal stem cell fate by pigment epithelium-derived factor (PEDF) results in increased adiposity and reduced bone mineral content.
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Determination of mesenchymal stem cell fate by pigment epithelium-derived factor (PEDF) results in increased adiposity and reduced bone mineral content.

机译:通过色素上皮衍生因子 (PEDF) 测定间充质干细胞命运导致肥胖增加和骨矿物质含量降低。

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Pigment epithelium-derived factor (PEDF), the protein product of the SERPINF1 gene, has been linked to distinct diseases involving adipose or bone tissue, the metabolic syndrome, and osteogenesis imperfecta (OI) type VI. Since mesenchymal stem cell (MSC) differentiation into adipocytes vs. osteoblasts can be regulated by specific factors, PEDF-directed dependency of murine and human MSCs was assessed. PEDF inhibited adipogenesis and promoted osteoblast differentiation of murine MSCs, osteoblast precursors, and human MSCs. Blockade of adipogenesis by PEDF suppressed peroxisome proliferator-activated receptor-γ (PPARγ), adiponectin, and other adipocyte markers by nearly 90 compared with control-treated cells (P50 compared with controls, illustrating its systemic role as a negative regulator of adipogenesis. Bones from KO mice demonstrated a reduction in mineral content recapitulating the OI type VI phenotype. These results demonstrate that the human diseases associated with PEDF reflect its ability to modulate MSC differentiation.-Gattu, A. K., Swenson, E. S., Iwakiri, Y., Samuel, V. T., Troiano, N., Berry, R., Church, C. D., Rodeheffer, M. S., Carpenter, T. O., Chung, C. Determination of mesenchymal stem cell fate by pigment epithelium-derived factor (PEDF) results in increased adiposity and reduced bone mineral content.
机译:色素上皮衍生因子 (PEDF) 是 SERPINF1 基因的蛋白质产物,与涉及脂肪或骨组织、代谢综合征和成骨不全症 (OI) VI 型的不同疾病有关。由于间充质干细胞 (MSC) 分化为脂肪细胞与成骨细胞可以受特定因素的调节,因此评估了小鼠和人 MSC 的 PEDF 定向依赖性。PEDF抑制小鼠间充质干细胞、成骨细胞前体和人间充质干细胞的脂肪生成并促进成骨细胞分化。 与对照处理的细胞相比,PEDF阻断脂肪生成可抑制过氧化物酶体增殖物激活受体-γ(PPARγ)、脂联素和其他脂肪细胞标志物近90%(P50%,说明了其作为脂肪生成的负调节因子。来自KO小鼠的骨骼显示出矿物质含量的降低,概括了OI VI型表型。这些结果表明,与PEDF相关的人类疾病反映了其调节MSC分化的能力。, Iwakiri, Y., Samuel, V. T., Troiano, N., Berry, R., Church, C. D., Rodeheffer, M. S., Carpenter, T. O., Chung, C. 通过色素上皮衍生因子 (PEDF) 测定间充质干细胞命运导致肥胖增加和骨矿物质含量降低。

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