PMID- 35644412 OWN - NLM STAT- MEDLINE DCOM- 20220621 LR - 20220828 IS - 1090-2422 (Electronic) IS - 0014-4827 (Linking) VI - 417 IP - 2 DP - 2022 Aug 15 TI - LncRNA HOTTIP facilitates osteogenic differentiation in bone marrow mesenchymal stem cells and induces angiogenesis via interacting with TAF15 to stabilize DLX2. PG - 113226 LID - S0014-4827(22)00219-1 [pii] LID - 10.1016/j.yexcr.2022.113226 [doi] AB - AIM: The molecular mechanism of differentiation in bone marrow mesenchymal stem cells (BMSCs) preserves to be further elucidated. LncRNA HOTTIP has been proven to accelerate osteogenic differentiation, but the regulation mechanism is still unclear. METHODS: The human BMSCs (hBMSCs) were isolated and identified by the antigen CD29, CD34, CD44, CD45, and CD90 through flow cytometry. The osteogenic state was determined by the ALP Detection Kit and Alizarin red staining. The tube formation was observed under a microscope. HOTTIP expression level, DLX2 and TAF15, Wnt/beta-catenin pathway, and transcriptional markers in osteogenesis and angiogenesis were examined with Western blot and RT-qPCR, respectively. The combination of TAF15 with lncRNA HOTTIP and DLX2 was detected by RNA immunoprecipitation (RIP) and RNA pulldown assays. RESULTS: The outcomes revealed that HOTTIP was noticeably up-regulated accompanied by the osteogenic transcriptional factor in the process of osteoblast differentiation and angiogenesis. Besides, HOTTIP enhanced alkaline phosphatase (ALP) activity, accelerated osteogenic differentiation and angiogenesis along with up-regulation of osteogenic and angiogenic-related gene expression, by interaction with TAF15 to stabilize DLX2. CONCLUSION: Taken together, our outcomes reveal that lncRNA HOTTIP accelerated osteogenic differentiation and angiogenesis by interaction with TAF15 to stabilize DLX2. CI - Copyright (c) 2022 Elsevier Inc. All rights reserved. FAU - Zeng, Xiao AU - Zeng X AD - Department of Pathology and Pathophysiology, School of Basic Medicine, Guizhou Medical University, Guiyang, 550002, Guizhou Province, PR China; Department of Prosthodontics, The Affiliated Stomatology Hospital of Guizhou Medical University, Guiyang, 550002, Guizhou Province, PR China; Guizhou Medical University School of Stomatology, Guiyang, 550002, Guizhou province, PR China. FAU - Dong, Qiang AU - Dong Q AD - Department of Prosthodontics, The Affiliated Stomatology Hospital of Guizhou Medical University, Guiyang, 550002, Guizhou Province, PR China; Guizhou Medical University School of Stomatology, Guiyang, 550002, Guizhou province, PR China. FAU - Liu, Qin AU - Liu Q AD - Department of Prosthodontics, The Affiliated Stomatology Hospital of Guizhou Medical University, Guiyang, 550002, Guizhou Province, PR China; Guizhou Medical University School of Stomatology, Guiyang, 550002, Guizhou province, PR China. FAU - Tan, Wen-Jia AU - Tan WJ AD - Department of Prosthodontics, The Affiliated Stomatology Hospital of Guizhou Medical University, Guiyang, 550002, Guizhou Province, PR China; Guizhou Medical University School of Stomatology, Guiyang, 550002, Guizhou province, PR China. FAU - Liu, Xing-De AU - Liu XD AD - Department of Pathology and Pathophysiology, School of Basic Medicine, Guizhou Medical University, Guiyang, 550002, Guizhou Province, PR China; Guizhou University of Traditional Chinese Medicine, Guiyang, 550002, Guizhou Province, PR China. Electronic address: lxd@gmc.edu.cn. LA - eng PT - Journal Article DEP - 20220526 PL - United States TA - Exp Cell Res JT - Experimental cell research JID - 0373226 RN - 0 (DLX2 protein, human) RN - 0 (Homeodomain Proteins) RN - 0 (RNA, Long Noncoding) RN - 0 (TAF15 protein, human) RN - 0 (TATA-Binding Protein Associated Factors) RN - 0 (Transcription Factors) SB - IM MH - Bone Marrow Cells/metabolism MH - Cell Differentiation MH - Cells, Cultured MH - Homeodomain Proteins/genetics/metabolism MH - Humans MH - *Mesenchymal Stem Cells MH - Osteogenesis/genetics MH - *RNA, Long Noncoding/genetics/metabolism MH - *TATA-Binding Protein Associated Factors/metabolism MH - Transcription Factors/genetics/metabolism MH - Wnt Signaling Pathway OTO - NOTNLM OT - Angiogenesis OT - DLX2 OT - LncRNA HOTTIP OT - Osteogenic differentiation OT - TAF15 OT - Wnt/beta-catenin pathway EDAT- 2022/06/02 06:00 MHDA- 2022/06/22 06:00 CRDT- 2022/06/01 10:34 PHST- 2022/01/05 00:00 [received] PHST- 2022/04/24 00:00 [revised] PHST- 2022/05/22 00:00 [accepted] PHST- 2022/06/02 06:00 [pubmed] PHST- 2022/06/22 06:00 [medline] PHST- 2022/06/01 10:34 [entrez] AID - S0014-4827(22)00219-1 [pii] AID - 10.1016/j.yexcr.2022.113226 [doi] PST - ppublish SO - Exp Cell Res. 2022 Aug 15;417(2):113226. doi: 10.1016/j.yexcr.2022.113226. Epub 2022 May 26.