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MiR-132/212 promotes the growth of precartilaginous stem cells (PCSCs) by regulating Ihh/PTHrP signaling pathway.
Zhang, Fu-Yong; Zhen, Yun-Fang; Guo, Zhi-Xiong; Dai, Jin; Zhu, Lun-Qing; Cao, Xu; Su, Guang-Hao; Zhang, Wen-Yan; Fang, Jian-Feng; Zhu, Zhen-Hua; Yin, Chun-Hua; Liu, Ya; Yu, Gao; Zhao, Tan-Tan; Zhang, Ya; Yuan, Quan-Wen; Wang, Xiao-Dong.
Afiliación
  • Zhang FY; Department of Orthopaedics, Children's Hospital of Soochow University, Suzhou 215000, China.
  • Zhen YF; Department of Orthopaedics, Children's Hospital of Soochow University, Suzhou 215000, China.
  • Guo ZX; Department of Orthopaedics, Children's Hospital of Soochow University, Suzhou 215000, China.
  • Dai J; Department of Orthopaedics, Children's Hospital of Soochow University, Suzhou 215000, China.
  • Zhu LQ; Department of Orthopaedics, Children's Hospital of Soochow University, Suzhou 215000, China.
  • Cao X; Department of Urology, Children's Hospital of Soochow University, Suzhou 215000, China.
  • Su GH; Department of Orthopaedics, Children's Hospital of Soochow University, Suzhou 215000, China.
  • Zhang WY; Department of Orthopaedics, Children's Hospital of Soochow University, Suzhou 215000, China.
  • Fang JF; Department of Orthopaedics, Children's Hospital of Soochow University, Suzhou 215000, China.
  • Zhu ZH; Department of Orthopaedics, Children's Hospital of Soochow University, Suzhou 215000, China.
  • Yin CH; Department of Orthopaedics, Children's Hospital of Soochow University, Suzhou 215000, China.
  • Liu Y; Department of Orthopaedics, Children's Hospital of Soochow University, Suzhou 215000, China.
  • Yu G; Department of Orthopaedics, Children's Hospital of Soochow University, Suzhou 215000, China.
  • Zhao TT; Department of Orthopaedics, Children's Hospital of Soochow University, Suzhou 215000, China.
  • Zhang Y; Department of Orthopaedics, Children's Hospital of Soochow University, Suzhou 215000, China.
  • Yuan QW; Department of Orthopaedics, Children's Hospital of Soochow University, Suzhou 215000, China.
  • Wang XD; Department of Orthopaedics, Children's Hospital of Soochow University, Suzhou 215000, China.
Biosci Rep ; 40(5)2020 05 29.
Article en En | MEDLINE | ID: mdl-32319512
Precartilaginous stem cells (PCSCs) are adult stem cells that can initiate chondrocytes and bone development. In the present study, we explored whether miR-132/212 was involved in the proliferation of PCSCs via Hedgehog signaling pathway. PCSCs were isolated and purified with the fibroblast growth factor receptor-3 (FGFR-3) antibody. Cell viability, DNA synthesis and apoptosis were measured using MTT, BrdU and flow cytometric analysis. The mRNA and protein expression were detected by real-time PCR and Western blot, respectively. The target gene for miR-132/212 was validated by luciferase reporter assay. Results showed that transfection with miR-132/212 mimic significantly increased cell viability and DNA synthesis, and inhibited apoptosis of PCSCs. By contrast, miR-132/212 inhibitor could suppress growth and promote apoptosis of PCSCs. Luciferase reporter assays indicated that transfection of miR-132/212 led to a marked reduction of luciferase activity, but had no effect on PTCH1 3'-UTR mutated fragment, suggesting that Patched1 (PTCH1) is a target of miR-132/212. Furthermore, treatment with miR-132/212 mimics obviously increased the protein expression of Indian hedgehog (Ihh) and parathyroid hormone related protein (PTHrP), which was decreased after treatment with Hedgehog signaling inhibitor, cyclopamine. We also found that inhibition of Ihh/PTHrP signaling by cyclopamine significantly suppressed growth and DNA synthesis, and induced apoptosis in PCSCs. These findings demonstrate that miR-132/212 promotes growth and inhibits apoptosis in PCSCs by regulating PTCH1-mediated Ihh/PTHrP pathway, suggesting that miR-132/212 cluster might serve as a novel target for bone diseases.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Condrocitos / MicroARNs / Proliferación Celular / Células Madre Adultas Límite: Animals Idioma: En Revista: Biosci Rep Año: 2020 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Condrocitos / MicroARNs / Proliferación Celular / Células Madre Adultas Límite: Animals Idioma: En Revista: Biosci Rep Año: 2020 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido