PMID- 27058019 OWN - NLM STAT- MEDLINE DCOM- 20170414 LR - 20220330 IS - 1557-8550 (Electronic) IS - 1549-5418 (Linking) VI - 34 IP - 11 DP - 2016 Nov TI - Effects of Photobiomodulation and Mesenchymal Stem Cells on Articular Cartilage Defects in a Rabbit Model. PG - 543-549 AB - OBJECTIVE: The aim of this study was to evaluate the effectiveness of the application of cultured autologous bone marrow mesenchymal stem cells (BMSCs) with scaffold and low-level laser therapy (LLLT) on the repair of articular cartilage defects in rabbits. BACKGROUND DATA: For healing of the articular cartilage defects, although positive effects of BMSCs and LLLT have been demonstrated, their combination effect is still unknown; therefore, we investigated combining these two techniques has a synergistic effect. MATERIALS AND METHODS: After bone marrow aspiration from 10 rabbits, BMSCs were isolated, cultured in monolayer, suspended on a type I collagen scaffold and then implanted onto a full-thickness osteochondral defect (4 mm in diameter), artificially made on the patellar groove of both knees in the same rabbits. Then a knee was selected randomly in each rabbit as the experimental group, and subjected to Ga-Al-As (810 nm) laser irradiation with energy density of 4 J/cm(2) every other day for 3 weeks. As the control group, the other knee did not receive LLLT. After this period, animals were euthanized and osteochondral defects were evaluated by histomorphometric methods. RESULTS: No significant difference in new cartilage formation and inflammation was found between the groups (p > 0.05). However, there was significantly more new bone formation in the experimental group (p < 0.05). CONCLUSIONS: In terms of our research, although better healing in osteochondral defects was seen when combining BMSCs and LLLT compared with the use of BMSCs alone, this improvement was predominantly caused by new bone formation rather than new cartilage formation. FAU - Fekrazad, Reza AU - Fekrazad R AD - 1 Department of Periodontology, Dental Faculty, AJA University of Medical Sciences , Tehran, Iran . FAU - Eslaminejad, Mohamadreza Baghaban AU - Eslaminejad MB AD - 2 Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology , ACECR, Tehran, Iran . FAU - Shayan, Arman M AU - Shayan AM AD - 3 Department of Orthodontics, Faculty of Dentistry, Tabriz University of Medical Sciences , Tabriz, Iran . FAU - Kalhori, Katayoun A M AU - Kalhori KA AD - 4 Oral & Maxillofacial Pathologist, Iranian Medical Laser Association, Tehran, Iran . FAU - Abbas, Fatemeh Mashhadi AU - Abbas FM AD - 5 Department of Oral & Maxillofacial Pathology, Shahid Beheshti University of Medical Sciences , Tehran, Iran . FAU - Taghiyar, Leila AU - Taghiyar L AD - 6 Department of Stem Cells and Developmental Biology, Cell Sciences Research Center, Royan Institute for Stem Cell Biology and Technology , ACECR, Tehran, Iran . FAU - Sepehr Pedram, Mir AU - Sepehr Pedram M AD - 7 Department of Surgery & Radiology, Faculty of Veterinary Medicine, University of Tehran , Tehran, Iran . FAU - Ghuchani, Mostafa Sadeghi AU - Ghuchani MS AD - 8 Department of Orthodontics, Gorgan Faculty of Dentistry, Golestan University of Medical Sciences , Golestan, Iran . LA - eng PT - Journal Article DEP - 20160408 PL - United States TA - Photomed Laser Surg JT - Photomedicine and laser surgery JID - 101222340 SB - IM MH - Analysis of Variance MH - Animals MH - Biopsy, Needle MH - Bone Marrow Cells/radiation effects MH - Bone Marrow Transplantation/*methods MH - Cartilage, Articular/injuries/pathology/*radiation effects MH - Cells, Cultured MH - Disease Models, Animal MH - Immunohistochemistry MH - Knee Joint/pathology/radiation effects MH - Low-Level Light Therapy/*methods MH - Male MH - Mesenchymal Stem Cells/*radiation effects MH - Rabbits MH - Random Allocation MH - Regeneration/physiology/radiation effects MH - Treatment Outcome OTO - NOTNLM OT - articular cartilage repair OT - bone marrow mesenchymal stem cells OT - low-level laser therapy OT - osteochondral defect OT - photobiomodulation OT - rabbit model EDAT- 2016/04/09 06:00 MHDA- 2017/04/15 06:00 CRDT- 2016/04/09 06:00 PHST- 2016/04/09 06:00 [pubmed] PHST- 2017/04/15 06:00 [medline] PHST- 2016/04/09 06:00 [entrez] AID - 10.1089/pho.2015.4028 [doi] PST - ppublish SO - Photomed Laser Surg. 2016 Nov;34(11):543-549. doi: 10.1089/pho.2015.4028. Epub 2016 Apr 8.