Application of bone and cartilage extracellular matrices in articular cartilage regeneration

Author(s):  
Fatemeh Haghwerdi ◽  
Mojtaba Khozaei Ravari ◽  
Leila Taghiyar ◽  
Mohammad Amin Shamekhi ◽  
Shahrbanoo Jahangir ◽  
...  
2020 ◽  
Author(s):  
Ming-Song Lee ◽  
Matthew J. Stebbins ◽  
Hongli Jiao ◽  
Hui-Ching Huang ◽  
Brian E. Walzack ◽  
...  

AbstractGenerating phenotypic chondrocytes from human pluripotent stem cells through driving developmental lineage-specific differentiation remains to be of great interest in the field of cartilage regeneration. In this study, we derived chondrocytes from human induced pluripotent stem cells (hiPSCs) along the mesodermal or ectomesodermal lineages to prepare isogenic mesodermal cell-derived chondrocytes (MC-Chs) or neural crest cell-derived chondrocytes (NCC-Chs), respectively, and further evaluated differences in their cellular and molecular characteristics and cartilage repair capabilities. Our results showed that both lineage-derived chondrocytes expressed hyaline cartilage-associated markers and were capable of forming hyaline cartilage-like tissue ectopically and at joint defects. Moreover, NCC-Chs showed the absence of markers of hypertrophic chondrocytes and revealed a closer morphological resemblance to articular chondrocytes and a greater capability of producing glycosaminoglycans and collagen type 2 at cartilage defects compared to MC-Chs. It was found that the profile of global transcript expression of NCC-Chs more closely resembled that of native chondrocytes (NCs) than that of MC-Chs. Induced by additional growth factors identified through the analysis of transcriptome comparison to NCs, both MC-Chs and NCC-Chs showed a further increase in the phenotype of hyaline cartilage chondrocytes. Results of this study reveal differences in cellular and molecular characteristics and cartilage repair capabilities between isogenic hiPSC-derived MC-Chs and NCC-Chs and demonstrate that chondrocytes derived from hiPSCs along the ectomesodermal lineage are a potential cell source for articular cartilage regeneration.


2012 ◽  
Vol 5 (3) ◽  
pp. 187-199 ◽  
Author(s):  
Aysegul Tombuloglu ◽  
Ayse B. Tekinay ◽  
Mustafa O. Guler

2020 ◽  
Vol 5 (4) ◽  
pp. 2473011420S0005
Author(s):  
Jung-Won Lim ◽  
Hong-Geun Jung

Category: Ankle Arthritis; Ankle; Arthroscopy Introduction/Purpose: The effect of supramalleolar osteotomy (SMO) without an additional bone marrow-stimulating procedure (BMSP) on articular cartilage regeneration in ankle joint still remains unknown. This study aimed to investigate whether SMO yielded favorable clinical and radiologic outcomes, and to evaluate whether the regeneration of articular cartilage could be observed after SMO without BMSP by second-look arthroscopy. Methods: 43 ankles after SMO (mean follow-up: 35.5 months) were retrospectively reviewed. Visual analog scale (VAS) pain score, American Orthopaedic Foot & Ankle Society (AOFAS) ankle-hindfoot score, patient satisfaction were used for functional evaluations. The tibial anterior surface angle (TAS) and tibial lateral surface angle (TLS) were measured on radiographs, and ankle osteoarthritis was classified by Takakura stage. Among the 43 patients, 31 underwent ankle arthroscopy prior to SMO, and second-look arthroscopy was performed at 1-year postoperatively. Tibiotalar cartilage regeneration was evaluated according to the modified Outerbridge classification for the 29 patients who had undergone SMO without BMSP. Results: The mean VAS score and AOFAS score significantly improved from 6.4 preoperatively to 1.4 postoperatively and from 61.1 preoperatively to 88.4 postoperatively, respectively (P < 0.05). Regarding overall postoperative patient satisfaction, 18 (41.8%) patients reported their satisfaction as excellent, 23 (53.5%) as satisfied. The mean TAS and TLS significantly improved from 83.8° and 94.8° preoperatively to 78.4° and 82.2° postoperatively, respectively (P < 0.05). 23 out of 28 preoperative Takakura stage IIIa cases and 3 out of 7 IIIb cases improved to postoperative stage II. On second-look arthroscopy, cartilage regeneration of the medial compartment of the tibiotalar joint was observed in 26 of 29 patients (89.7%), whereas cartilage deterioration was not observed in any patient. Conclusion: Medial tibio-talar articular cartilage regeneration was observed in most cases (89.7%) of medial compartment ankle osteoarthritis after SMO without BMSP, which was confirmed with second-look arthroscopic evaluation. It also showed satisfactory clinical and radiologic outcomes with high patient satisfaction.


Author(s):  
Abhishek Vaish ◽  
Saseendar Shanmugasundaram ◽  
Seon Ae Kim ◽  
Dong-Hwan Lee ◽  
Asode Ananthram Shetty ◽  
...  

Author(s):  
Matthew P Murphy ◽  
Lauren S Koepke ◽  
Michael T Lopez ◽  
Xinming Tong ◽  
Thomas H Ambrosi ◽  
...  

2020 ◽  
Vol 84 ◽  
pp. S446-S450 ◽  
Author(s):  
Christine Schaeffer ◽  
Blaise N. Pfaff ◽  
Nicholas J. Cornell ◽  
Lisa S. Salopek ◽  
Sarah Shan ◽  
...  

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