PMID- 36927429 OWN - NLM STAT- MEDLINE DCOM- 20231201 LR - 20231201 IS - 2212-3946 (Electronic) IS - 1574-888X (Linking) VI - 19 IP - 2 DP - 2024 TI - RADA-16-based Self-assembled Peptide Nanofiber Scaffolds Loaded with TGF-beta1 Enhance the Chondrogenic Differentiation Potential of BMSCs In vitro. PG - 257-266 LID - 10.2174/1574888X18666230316112847 [doi] AB - OBJECTIVE: At present, cartilage repair does not offer ideal efficacy. Fortunately, recent studies have claimed that RADA-16 peptide is an attractive therapeutic strategy for repairing cartilage defects. Therefore, this study tried to explore the effect of RADA-16 loaded with transforming growth factor-beta (TGF-beta) 1 on cartilage differentiation of bone marrow mesenchymal stem cells (BMSCs). METHODS: First, the RADA-16 peptide was synthesized by solid phase peptide, and a well-defined hydrogel was formed by supramolecular peptide self-assembly. Then, TGF-beta1 (loading concentration of 10 ng/mL) was loaded into RADA-16, with scanning electron microscopy to observe the morphology of the TGF-beta1/RADA-16 hydrogel and detect its related properties. Next, BMSCs were isolated from bone marrow samples and identified. TGF-beta1/RADA-16 was co-cultured with L929, BMSCs, and C28/I2 cells, respectively, and the survival and proliferation ability of the cells was determined by live/dead cell staining and MTT assay. Chondrogenic differentiation and sGAG production of BMSCs were determined by Alcian blue staining and Blyscan assay, the expression of cartilage-associated genes by qRT-PCR, and the levels of inflammatory factors by ELISA. As for mechanism investigation, the Smad and ERK/MAPK signaling pathways were detected by western blot. RESULTS: RADA-16 hydrogel exhibited a well-distributed and interconnected porous surface structure, with a loading rate of 91.9% for TGF-beta1. The TGF-beta1/RADA-16 hydrogel had good release and degradation properties, and had no negative effect on the survival and proliferation ability of BMSCs, L929, and C28/I2 cells. Importantly, TGF-beta1/RADA-16 hydrogel significantly accelerated chondrogenic differentiation and sGAG generation in BMSCs, and decreased pro-inflammatory factor production. In addition, the hydrogel also significantly activated the Smad and ERK/MAPK pathways of BMSCs. CONCLUSION: RADA-16 loaded with TGF-beta1 has good biological properties and can enhance the chondrogenic differentiation ability of BMSCs. CI - Copyright(c) Bentham Science Publishers; For any queries, please email at epub@benthamscience.net. FAU - Yu, Peng AU - Yu P AD - Department of Joint Surgery, Center for Orthopaedic Surgery, The Third Affiliated Hospital of Southern Medical University, The Third School of Clinical Medicine, Southern Medical University, Guangzhou, 510515, China. AD - Department of Joint Surgery, The First Affiliated Hospital of Hainan Medical University. Haikou, 570102, China. FAU - Duan, Lian AU - Duan L AD - Department of Joint Surgery, The First Affiliated Hospital of Hainan Medical University. Haikou, 570102, China. FAU - Yan, Zhen AU - Yan Z AD - Department of Joint Surgery, The First Affiliated Hospital of Hainan Medical University. Haikou, 570102, China. FAU - Li, Jun AU - Li J AD - Department of Joint Surgery, The First Affiliated Hospital of Hainan Medical University. Haikou, 570102, China. FAU - Cai, Dao-Zhang AU - Cai DZ AD - Department of Joint Surgery, Center for Orthopaedic Surgery, The Third Affiliated Hospital of Southern Medical University, The Third School of Clinical Medicine, Southern Medical University, Guangzhou, 510515, China. LA - eng GR - 821RC703/Hainan Natural Science Foundation/ PT - Journal Article PL - United Arab Emirates TA - Curr Stem Cell Res Ther JT - Current stem cell research & therapy JID - 101272517 RN - 0 (Hydrogels) RN - 0 (Transforming Growth Factor beta1) SB - IM MH - Humans MH - Bone Marrow Cells MH - Cell Differentiation MH - Cells, Cultured MH - Chondrogenesis MH - Hydrogels/pharmacology/chemistry MH - *Mesenchymal Stem Cells MH - *Nanofibers MH - Transforming Growth Factor beta1/pharmacology MH - *Tissue Scaffolds OTO - NOTNLM OT - MTT assay OT - RADA-16 OT - bone marrow mesenchymal stem cells (BMSCs) OT - nano self-assembled polypeptide OT - proliferation. OT - transforming growth factor-beta (TGF-beta) 1 EDAT- 2023/03/18 06:00 MHDA- 2023/11/28 06:42 CRDT- 2023/03/17 08:21 PHST- 2022/11/22 00:00 [received] PHST- 2023/02/03 00:00 [revised] PHST- 2023/02/10 00:00 [accepted] PHST- 2023/11/28 06:42 [medline] PHST- 2023/03/18 06:00 [pubmed] PHST- 2023/03/17 08:21 [entrez] AID - CSCR-EPUB-130194 [pii] AID - 10.2174/1574888X18666230316112847 [doi] PST - ppublish SO - Curr Stem Cell Res Ther. 2024;19(2):257-266. doi: 10.2174/1574888X18666230316112847.