PMID- 31967113 OWN - NLM STAT- MEDLINE DCOM- 20201027 LR - 20201027 IS - 2047-4849 (Electronic) IS - 2047-4830 (Linking) VI - 8 IP - 6 DP - 2020 Mar 17 TI - Identification of a prolonged action molecular GLP-1R agonist for the treatment of femoral defects. PG - 1604-1614 LID - 10.1039/c9bm01426h [doi] AB - Autografts are still regarded as the gold standard treatment for bone defects but they require additional surgery that causes pain for the patient. Thus, alternatives that can substitute for grafts are required. In the present study, a novel poly-GLP-1 molecule was developed using a polymeric pro-drug strategy which was found to accelerate bone healing in a mouse femoral defect model. Furthermore, the poly-GLP-1 molecule induced osteogenesis and inhibited adipogenesis in bone marrow-derived mesenchymal stem cells (BMSCs). The results demonstrate that poly-GLP-1 promoted M2 polarization of bone marrow-derived macrophages (BMDMs) and increased the levels of TGF-beta1 in the bone marrow, resulting in the migration of an increased number of CD29 + Sca-1 + BMSCs to the bone surface. Finally, we found that poly-GLP-1 facilitated the migration of BMSCs due to transduction of the Smad2 signaling pathway, causing increased numbers of CD31 + Endomucin + endothelial cells in bone marrow that promoted bone formation. These results support poly-GLP-1 as a potential bone-healing agent and suggest that it may play a promising role in the clinical treatment of fracture repair. FAU - Wang, Ning AU - Wang N AUID- ORCID: 0000-0002-6607-602X AD - Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an, Shaanxi, China. maxuel@fmmu.edu.cn mjrfmmu@fmmu.edu.cn and Department of Orthopaedics, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China. guozheng@fmmu.edu.cn lxkfmmu@163.com. FAU - Liu, Xuanchen AU - Liu X AD - College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China and Department of Nutrition, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China. FAU - Shi, Lei AU - Shi L AD - Department of Orthopaedics, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China. guozheng@fmmu.edu.cn lxkfmmu@163.com. FAU - Liu, Yanwu AU - Liu Y AD - Department of Orthopaedics, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China. guozheng@fmmu.edu.cn lxkfmmu@163.com. FAU - Guo, Shuo AU - Guo S AD - Department of Orthopaedics, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China. guozheng@fmmu.edu.cn lxkfmmu@163.com. FAU - Liu, Wenwen AU - Liu W AD - Department of Orthopaedics, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China. guozheng@fmmu.edu.cn lxkfmmu@163.com. FAU - Li, Xiaokang AU - Li X AD - Department of Orthopaedics, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China. guozheng@fmmu.edu.cn lxkfmmu@163.com. FAU - Meng, Jingru AU - Meng J AD - Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an, Shaanxi, China. maxuel@fmmu.edu.cn mjrfmmu@fmmu.edu.cn. FAU - Ma, Xue AU - Ma X AD - Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an, Shaanxi, China. maxuel@fmmu.edu.cn mjrfmmu@fmmu.edu.cn. FAU - Guo, Zheng AU - Guo Z AD - Department of Orthopaedics, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China. guozheng@fmmu.edu.cn lxkfmmu@163.com. LA - eng PT - Journal Article PL - England TA - Biomater Sci JT - Biomaterials science JID - 101593571 RN - 0 (Glucagon-Like Peptide-1 Receptor) RN - 0 (Polymers) SB - IM MH - Adipogenesis/drug effects MH - Animals MH - Cell Polarity/drug effects MH - Femur/drug effects/*injuries/metabolism MH - Glucagon-Like Peptide-1 Receptor/*agonists MH - Humans MH - Male MH - Mesenchymal Stem Cells/*cytology/drug effects MH - Mice MH - *Osteogenesis MH - Polymers/*administration & dosage/chemistry/pharmacology MH - Random Allocation MH - Signal Transduction/drug effects MH - Treatment Outcome MH - Wound Healing/drug effects EDAT- 2020/01/23 06:00 MHDA- 2020/10/28 06:00 CRDT- 2020/01/23 06:00 PHST- 2020/01/23 06:00 [pubmed] PHST- 2020/10/28 06:00 [medline] PHST- 2020/01/23 06:00 [entrez] AID - 10.1039/c9bm01426h [doi] PST - ppublish SO - Biomater Sci. 2020 Mar 17;8(6):1604-1614. doi: 10.1039/c9bm01426h.