PMID- 35774063 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220716 IS - 2296-4185 (Print) IS - 2296-4185 (Electronic) IS - 2296-4185 (Linking) VI - 10 DP - 2022 TI - Stem Cells-Loaded 3D-Printed Scaffolds for the Reconstruction of Alveolar Cleft. PG - 939199 LID - 10.3389/fbioe.2022.939199 [doi] LID - 939199 AB - The advances in the field of tissue engineering and regenerative medicine have opened new vistas for the repair of alveolar clefts. However, the currently available biomaterials used for the repair of alveolar clefts have poor mechanical properties and biocompatibility, which hinders the treatment outcomes. Here, we aimed to develop 3D printed biomimetic scaffolds that fuses beta-tricalcium phosphate (beta-TCP) and bone marrow mesenchymal stem cells (BMSCs) for improving the repair of alveolar clefts. The methacrylate gelatin (GelMA) was mixed with beta-TCP for the preparation of GelMA/beta-TCP hybrid scaffolds via 3D printing platform and chemically cross-linking with UV light. The physicochemical properties of the hydrogel scaffolds were characterized. Moreover, the survival state, proliferation ability, morphological characteristics, and osteogenic induction of BMSCs were examined. The prepared hybrid scaffolds showed good biocompatibility and mechanical properties. BMSCs attached well to the scaffolds and proliferated, survived, differentiated, and stimulated osteogenesis for the reconstruction of alveolar clefts. We expect that use of the prepared hybrid hydrogel scaffold can improve the outcomes of alveolar cleft repair in clinic and expand the application of hybrid hydrogel in tissue engineering repair. CI - Copyright (c) 2022 Luo, Chen and Chen. FAU - Luo, Dongyuan AU - Luo D AD - Guangzhou Women and Children's Medical Center, Guangzhou, China. FAU - Chen, Boying AU - Chen B AD - Guangzhou Women and Children's Medical Center, Guangzhou, China. FAU - Chen, Yu AU - Chen Y AD - Guangzhou Women and Children's Medical Center, Guangzhou, China. LA - eng PT - Journal Article DEP - 20220614 PL - Switzerland TA - Front Bioeng Biotechnol JT - Frontiers in bioengineering and biotechnology JID - 101632513 PMC - PMC9237206 OTO - NOTNLM OT - 3D printing OT - alveolar cleft OT - bone marrow mesenchymal stem cells OT - methacrylated gelatin OT - beta-tricalcium phosphate COIS- The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. EDAT- 2022/07/02 06:00 MHDA- 2022/07/02 06:01 PMCR- 2022/01/01 CRDT- 2022/07/01 02:25 PHST- 2022/05/08 00:00 [received] PHST- 2022/05/26 00:00 [accepted] PHST- 2022/07/01 02:25 [entrez] PHST- 2022/07/02 06:00 [pubmed] PHST- 2022/07/02 06:01 [medline] PHST- 2022/01/01 00:00 [pmc-release] AID - 939199 [pii] AID - 10.3389/fbioe.2022.939199 [doi] PST - epublish SO - Front Bioeng Biotechnol. 2022 Jun 14;10:939199. doi: 10.3389/fbioe.2022.939199. eCollection 2022.