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Tierney L, Kuiper JH, Roberts S, Snow M, Williams M, Harrington MB, Harrison P, Gallacher P, Jermin P, Wright KT. Lower cell number, lateral defect location and milder grade are associated with improved autologous chondrocyte implantation outcome. Knee Surg Sports Traumatol Arthrosc 2024. [PMID: 39189122 DOI: 10.1002/ksa.12433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 08/02/2024] [Accepted: 08/05/2024] [Indexed: 08/28/2024]
Abstract
PURPOSE To investigate patient demographic, injury and surgery/treatment-associated factors that can influence the patient-reported outcome (Lysholm score), following autologous chondrocyte implantation (ACI) in a large, 'real-world', nonuniform, prospective data examined retrospectively. METHODS Knee patients treated at the Robert Jones and Agnes Hunt Orthopaedic Hospital, UK, using ACI between 1996 and 2020 were eligible. All longitudinal postoperative Lysholm scores collected between 1 and 23 years after ACI treatment and before any second major procedure (e.g., arthroplasty) were included. Multilevel longitudinal models were built investigating the association of short-term (1 year) or long-term trends in Lysholm score with baseline demographic, clinical and cell-culture variables, namely age, gender, smoker status, body mass index, baseline Lysholm score, time from surgery, defect grade, diameter and location, number of defects, previous microfracture, patch/scaffold type, associated procedure(s), number of cells implanted and their passage number. RESULTS Following filtering, 306 of the 427 knee ACI procedures reviewed were suitable for inclusion. Factors shown to result in higher postoperative Lysholm scores in the short term were lower patient age, higher baseline Lysholm scores, fewer implanted cells and a lateral femoral defect location. The factor which was associated with higher long-term postoperative Lysholm scores was a milder defect grade. Additionally, the failure rate in this cohort was explored and it was found that 73/306 (24%) of patients experienced joint failure according to our definition. Furthermore, the outcome was not influenced by coincidental procedures in this cohort of patients. CONCLUSIONS This study has identified a number of baseline factors associated with patient-reported outcomes following ACI and shows that treatment of associated pathology at the time of surgery potentially restores patient outcomes to a similar level as those with no associated pathologies. LEVEL OF EVIDENCE Level IV.
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Affiliation(s)
- Lauren Tierney
- School of Pharmacy and Bioengineering, Centre for Regenerative Medicine Research, Keele University, Staffordshire, UK
- Oswestry Keele Orthopaedic Research Group, Robert Jones and Agnes Hunt Orthopaedic Hospital, Oswestry, Shropshire, UK
| | - Jan H Kuiper
- School of Pharmacy and Bioengineering, Centre for Regenerative Medicine Research, Keele University, Staffordshire, UK
- Oswestry Keele Orthopaedic Research Group, Robert Jones and Agnes Hunt Orthopaedic Hospital, Oswestry, Shropshire, UK
| | - Sally Roberts
- School of Pharmacy and Bioengineering, Centre for Regenerative Medicine Research, Keele University, Staffordshire, UK
- Oswestry Keele Orthopaedic Research Group, Robert Jones and Agnes Hunt Orthopaedic Hospital, Oswestry, Shropshire, UK
| | - Martyn Snow
- School of Pharmacy and Bioengineering, Centre for Regenerative Medicine Research, Keele University, Staffordshire, UK
- Oswestry Keele Orthopaedic Research Group, Robert Jones and Agnes Hunt Orthopaedic Hospital, Oswestry, Shropshire, UK
| | - Mike Williams
- School of Pharmacy and Bioengineering, Centre for Regenerative Medicine Research, Keele University, Staffordshire, UK
- Oswestry Keele Orthopaedic Research Group, Robert Jones and Agnes Hunt Orthopaedic Hospital, Oswestry, Shropshire, UK
| | - Mateus B Harrington
- Division of Psychological Medicine & Clinical Neurosciences, Cardiff University, Cardiff, UK
| | - Paul Harrison
- Oswestry Keele Orthopaedic Research Group, Robert Jones and Agnes Hunt Orthopaedic Hospital, Oswestry, Shropshire, UK
| | - Pete Gallacher
- Oswestry Keele Orthopaedic Research Group, Robert Jones and Agnes Hunt Orthopaedic Hospital, Oswestry, Shropshire, UK
| | - Paul Jermin
- School of Pharmacy and Bioengineering, Centre for Regenerative Medicine Research, Keele University, Staffordshire, UK
- Oswestry Keele Orthopaedic Research Group, Robert Jones and Agnes Hunt Orthopaedic Hospital, Oswestry, Shropshire, UK
| | - Karina T Wright
- School of Pharmacy and Bioengineering, Centre for Regenerative Medicine Research, Keele University, Staffordshire, UK
- Oswestry Keele Orthopaedic Research Group, Robert Jones and Agnes Hunt Orthopaedic Hospital, Oswestry, Shropshire, UK
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Hanlon J, Máté M, de Jonge R, Bäcker HC, Panics G. A higher incidence of chondral injuries on the medial femoral condyle in concomitant ACL ruptures, no significant difference in treatment: A systematic review. Knee Surg Sports Traumatol Arthrosc 2024. [PMID: 39154256 DOI: 10.1002/ksa.12424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 07/22/2024] [Accepted: 07/31/2024] [Indexed: 08/19/2024]
Abstract
PURPOSE The associated damage to articular cartilage in anterior cruciate ligament (ACL) injured patients is a well-recognized phenomenon; however, there is a relative paucity in the literature regarding the different treatment techniques and outcomes. The purpose of this systematic review was to identify patients treated for acute ACL rupture and associated cartilage injury, with interest in the surgical management of these chondral injuries and any difference in patient-reported outcome measures (PROMs) differing techniques. METHODS A systematic review was performed looking for treatment or management of International Cartilage Repair Society grade 3 or 4 articular cartilage injury at the time of ACL reconstruction. RESULTS Seventeen studies fit the criteria, a total of 892 patients were included, 64.6% were male with a mean age of 33.7 and the average time to follow-up was 41.7 months. 68.2% of the lesions were on the medial femoral condyle (MFC) with a mean lesion size of 3.9 cm2. Six different operative methods of dealing with chondral lesions were identified, there was no significant difference in PROMs between the techniques, although there was a significant difference between the preoperative and postoperative outcome measures. CONCLUSIONS The systematic review found that chondral defects on the MFC are more common in concomitant ACL injuries, despite the pattern of bone bruising being more common on the lateral femoral condyle as reported in the literature. It also found no significant difference in the PROMs between the six different techniques identified for the concomitant management of ACL reconstruction and chondral defects. LEVEL OF EVIDENCE Level II.
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Affiliation(s)
- Jack Hanlon
- Department of Orthopaedics and Traumatology, Uzsoki Hospital, FIFA Medical Center of Excellence Budapest, Budapest, Hungary
- Department of Orthopaedic Surgery, Auckland City Hospital, Grafton, New Zealand
- Department of Orthopaedic Surgery, Middlemore Hospital, Auckland, New Zealand
| | - Miklós Máté
- Department of Orthopaedics and Traumatology, Uzsoki Hospital, FIFA Medical Center of Excellence Budapest, Budapest, Hungary
| | - Róbert de Jonge
- Department of Orthopaedics and Traumatology, Uzsoki Hospital, FIFA Medical Center of Excellence Budapest, Budapest, Hungary
| | - Henrik C Bäcker
- Department of Orthopaedic Surgery, Auckland City Hospital, Grafton, New Zealand
- Department of Orthopaedic Surgery, Middlemore Hospital, Auckland, New Zealand
| | - Gergely Panics
- Department of Orthopaedic Surgery, Middlemore Hospital, Auckland, New Zealand
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Weishorn J, Koch KA, Zietzschmann S, Trefzer R, Walker T, Renkawitz T, Bangert Y. Neutral to slightly undercorrected mechanical leg alignment provides superior long-term results in patients undergoing matrix-associated autologous chondrocyte implantation. Knee Surg Sports Traumatol Arthrosc 2024; 32:2040-2051. [PMID: 38738859 DOI: 10.1002/ksa.12226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Revised: 04/23/2024] [Accepted: 04/24/2024] [Indexed: 05/14/2024]
Abstract
PURPOSE The aim of this study was to evaluate the role of leg alignment on long-term clinical outcome after matrix-associated autologous chondrocyte implantation (M-ACI) and to define an individualized target range to optimize clinical outcome. METHODS The present study examined patients who underwent M-ACI of the femoral condyle. The Knee Injury and Osteoarthritis Outcome Score (KOOS) and Magnetic Resonance Observation of Cartilage Repair Tissue (MOCART) were used to assess the results. Clinical outcomes were related to Patient Acceptable Symptomatic State (PASS). For intra- and interobserver reliability of mechanical tibiofemoral angle, mechanical medial proximal tibial angle and mechanical lateral distal femoral angle, we calculated intraclass correlation coefficients using a two-way mixed model with absolute agreement. A regression model and receiver-operating characteristics curve were used to identify an individual range of alignment where a favourable clinical outcome could be expected in the long term. RESULTS Additional osteotomy was performed in 50% of patients with similar clinical outcomes as physiologically aligned patients (p > 0.05). The curve-fitting regression model identified a target range of -2.5° valgus to 4.5° varus for ideal postoperative alignment (R2 = 0.12, p = 0.01). Patients within this range were more likely to achieve PASS (70% vs. 27%, p = 0.001). In medially treated defects, a refined range of -2.5° valgus to 4° varus alignment was found (R2 = 0.15, p = 0.01). These patients were more likely to achieve PASS (67% vs. 30%, p = 0.01) and showed favourable postoperative KOOS and MOCART scores (p = 0.02). Patients with lateral defects were more likely to achieve PASS within a range of -2° valgus and 0.5° varus (90% vs. 45%, p = 0.03) and showed favourable postoperative KOOS and MOCART scores (p = not significant). CONCLUSIONS An individual range of leg alignment-whether achieved by osteotomy or physiologic alignment-should be respected in M-ACI treatment. A neutral to slightly undercorrected alignment favours the postoperative outcome after M-ACI. When planning surgery for patients with focal cartilage defects of the femoral condyle, these ranges should be recognized as critical factors. LEVEL OF EVIDENCE Level III.
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Affiliation(s)
- Johannes Weishorn
- Department of Orthopaedics, Heidelberg University Hospital, Ruprecht-Karls-University Heidelberg, Heidelberg, Germany
| | - Kevin-Arno Koch
- Department of Orthopaedics, Heidelberg University Hospital, Ruprecht-Karls-University Heidelberg, Heidelberg, Germany
| | - Severin Zietzschmann
- Department of Orthopaedics, Heidelberg University Hospital, Ruprecht-Karls-University Heidelberg, Heidelberg, Germany
| | - Raphael Trefzer
- Department of Orthopaedics, Heidelberg University Hospital, Ruprecht-Karls-University Heidelberg, Heidelberg, Germany
| | - Tilman Walker
- Department of Orthopaedics, Heidelberg University Hospital, Ruprecht-Karls-University Heidelberg, Heidelberg, Germany
| | - Tobias Renkawitz
- Department of Orthopaedics, Heidelberg University Hospital, Ruprecht-Karls-University Heidelberg, Heidelberg, Germany
| | - Yannic Bangert
- Department of Orthopaedics, Heidelberg University Hospital, Ruprecht-Karls-University Heidelberg, Heidelberg, Germany
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Weishorn J, Wiegand J, Koch KA, Trefzer R, Renkawitz T, Walker T, Bangert Y. Favourable clinical outcomes and low revision rate after M-ACI in adolescents with immature cartilage compared to adult controls: Results at 10 years. Knee Surg Sports Traumatol Arthrosc 2024. [PMID: 39010715 DOI: 10.1002/ksa.12359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2024] [Revised: 06/28/2024] [Accepted: 06/29/2024] [Indexed: 07/17/2024]
Abstract
PURPOSE The purpose of this study was to evaluate long-term survival, patient-reported outcomes (PROs) and radiographic results of matrix-associated autologous chondrocyte implantation (M-ACI) in adolescents with immature cartilage and compare them to adult controls. METHODS A retrospective matched-pair analysis was performed comparing the PRO after M-ACI for focal cartilage defect of the knee in cartilaginous immature adolescents to mature adults. Groups were matched for sex, body mass index, defect site and size, symptom duration and the number of previous knee surgeries. Knee Injury and Osteoarthritis Outcome Score (KOOS) and the Magnetic Resonance Observation of Cartilage Repair Tissue (MOCART 2.0) scores were assessed at least 60 months postoperatively. Patient acceptable symptomatic state (PASS) and clinical response rate in KOOS and KOOS subscores were calculated. RESULTS A total of 54 patients were matched. At a mean of 96 months (65-144 months), no surgical complications, graft hypertrophy or reoperations were noted in the cohorts studied. Adolescents showed superior PROs at the final follow-up (76.9 ± 14.1 vs. 66.4 ± 15.0, p = 0.03) and were significantly more likely to achieve PASS (74.1% vs. 55.6%; p = 0.02) compared to the adult cohort. The KOOS subscale analysis showed long-term benefits for adolescents in terms of symptom improvement, pain reduction, activities of daily living, sports and quality of life (p < 0.05). None of the patients in the adolescent group showed graft hypertrophy on magnet resonance imaging or signs of osteoarthritis on radiographs at long-term follow-ups. CONCLUSIONS M-ACI is an effective treatment for chondral defects of the knee in patients with immature cartilage with low revision rates and high patient satisfaction over the long term. Adolescents showed comparable clinical and radiographic results in the short and medium term, with slightly more favourable, clinically relevant functional results in adolescents in the long term. M-ACI can be safely used in adolescents, and consideration should be given to expanding the indication to include these patients. LEVEL OF EVIDENCE Level III.
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Affiliation(s)
- Johannes Weishorn
- Department of Orthopaedics, Heidelberg University Hospital, Ruprecht-Karls-University Heidelberg, Heidelberg, Germany
| | - Johanna Wiegand
- Department of Orthopaedics, Heidelberg University Hospital, Ruprecht-Karls-University Heidelberg, Heidelberg, Germany
| | - Kevin-Arno Koch
- Department of Orthopaedics, Heidelberg University Hospital, Ruprecht-Karls-University Heidelberg, Heidelberg, Germany
| | - Raphael Trefzer
- Department of Orthopaedics, Heidelberg University Hospital, Ruprecht-Karls-University Heidelberg, Heidelberg, Germany
| | - Tobias Renkawitz
- Department of Orthopaedics, Heidelberg University Hospital, Ruprecht-Karls-University Heidelberg, Heidelberg, Germany
| | - Tilman Walker
- Department of Orthopaedics, Heidelberg University Hospital, Ruprecht-Karls-University Heidelberg, Heidelberg, Germany
| | - Yannic Bangert
- Department of Orthopaedics, Heidelberg University Hospital, Ruprecht-Karls-University Heidelberg, Heidelberg, Germany
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Oehme S, Burger JA, Krafzick S, Bartek B, Winkler T, Jung T. Autologous bone grafting in combination with autologous chondrocyte implantation yields favourable outcomes in the treatment of osteochondral defects of the knee: A systematic literature review. Knee Surg Sports Traumatol Arthrosc 2024. [PMID: 38953161 DOI: 10.1002/ksa.12342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Revised: 05/05/2024] [Accepted: 06/17/2024] [Indexed: 07/03/2024]
Abstract
PURPOSE This study addresses the gap in the current literature by evaluating the combined treatment of autologous bone grafting and autologous chondrocyte implantation (ABCI) for osteochondral defects of the knee. It aims to evaluate clinical outcomes against methodological quality and to summarize histological results and surgical techniques. METHODS A thorough search was conducted across Pubmed, Cochrane and Embase databases. Studies reporting clinical outcomes of ABCI for osteochondral defects of the knee were included. Patient-reported outcome measures (PROMs), failure rates, methodological quality and potential conflicts of interest were evaluated. Histological results and surgical techniques were summarized. RESULTS Eighteen studies with 344 analyzed patients met the eligibility criteria for inclusion. All studies showed a significant improvement (p < 0.05) across different PROMs (subjective International Knee Documentation Committee score, Cincinnati Knee Rating System, Visual Analogue Scale, Lysholm Score, Tegner Activity Scale, Knee injury and Osteoarthritis Outcome Score and Knee Society Score) compared to the preoperative status. Failure rates ranged from 0% to 17.6%, with a mean follow-up of 73.2 months (range: 9.0-143.6 months). Methodological quality was low to medium, including only one comparative study. Six studies reviewed reported a potential conflict of interest. The histological assessment showed effective bonding between autologous chondrocytes and bone graft. A large degree of variability was observed in the operative technique used. CONCLUSION The current literature suggests that ABCI yields good clinical outcomes at mid- to long-term follow-up with favourable histological results for osteochondral defects of the knee. However, future research should focus on high-quality comparative studies to better guide treatment choices. Introducing ABCI as the standard abbreviation may enhance clarity in future research. LEVEL OF EVIDENCE Level IV.
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Affiliation(s)
- Stephan Oehme
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Center for Musculoskeletal Surgery, Berlin, Germany
| | - Joost A Burger
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Center for Musculoskeletal Surgery, Berlin, Germany
| | - Sophie Krafzick
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Center for Musculoskeletal Surgery, Berlin, Germany
| | - Benjamin Bartek
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Center for Musculoskeletal Surgery, Berlin, Germany
| | - Tobias Winkler
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Center for Musculoskeletal Surgery, Berlin, Germany
| | - Tobias Jung
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Center for Musculoskeletal Surgery, Berlin, Germany
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Tarantino R, Jensen HM, Waldman SD. Elevated nutrient availability enhances chondrocyte metabolism and biosynthesis in tissue-engineered cartilage. Osteoarthritis Cartilage 2024; 32:895-906. [PMID: 38615973 DOI: 10.1016/j.joca.2024.03.119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 03/21/2024] [Accepted: 03/22/2024] [Indexed: 04/16/2024]
Abstract
OBJECTIVE Chondrocytes, which typically rely on anaerobic metabolism, exhibit upregulated biosynthetic activity when subjected to conditions that elicit mixed aerobic-anaerobic metabolism. Previously, we observed that increasing media volume resulted in the transition from anaerobic to mixed aerobic-anaerobic metabolism. Maximal extracellular matrix (ECM) accumulation occurred at this transition as a result of changes in hypoxia-inducible factor 1α signaling and associated hypoxic gene expression. This study aimed to explore the effect of further increases in media availability on ECM synthesis and chondrocyte metabolism. METHODS Primary bovine chondrocytes were grown in 3D high-density tissue culture under varying levels of media availability (4-16 mL/106 cells). Changes in ECM accumulation and metabolism were determined through biochemical assays and 13C-metabolic flux analysis (13C-MFA). RESULTS Increasing media volumes resulted in higher accumulation of cartilaginous ECM (collagen and proteoglycans) and cellularity. Extracellular metabolite measurements revealed that elevated media availability led to increased glucose and glutamine metabolism, along with increased anaerobic activity. 13C-MFA utilizing [U-13C] glucose demonstrated that increased media availability significantly impacted central carbon metabolism, upregulating all glucose-related metabolic pathways (glycolysis, lactate fermentation, the tricarboxylic acid (TCA) cycle, hexosamine biosynthetic pathway, and the malate-aspartate shuttle). Furthermore, 13C-MFA indicated that glutamine was donating carbons to the TCA cycle, and additional studies involving [U-13C] glutamine tracing supported this notion. CONCLUSIONS Elevated media availability upregulates ECM synthesis and leads to significant changes in metabolic phenotype. Glutamine plays an important role in chondrocyte metabolism and increases in glutamine metabolism correlate with increases in ECM accumulation.
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Affiliation(s)
- Roberto Tarantino
- Department of Chemical Engineering, Toronto Metropolitan University, Toronto, Ontario, Canada; Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Ontario, Canada; Institute of Biomedical Engineering, Science and Technology (iBEST), Unity Health and Toronto Metropolitan University, Toronto, Ontario, Canada
| | - Halie Mei Jensen
- Department of Electrical, Computer, and Biomedical Engineering, Toronto Metropolitan University, Toronto, Ontario, Canada; Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Ontario, Canada; Institute of Biomedical Engineering, Science and Technology (iBEST), Unity Health and Toronto Metropolitan University, Toronto, Ontario, Canada
| | - Stephen D Waldman
- Department of Chemical Engineering, Toronto Metropolitan University, Toronto, Ontario, Canada; Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Ontario, Canada; Institute of Biomedical Engineering, Science and Technology (iBEST), Unity Health and Toronto Metropolitan University, Toronto, Ontario, Canada.
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Colombini A, Lopa S, Libonati F, Talò G, Mareschi K, Marini E, Mangiavini L, Raffo V, Moretti M, de Girolamo L. Low-density cultured cartilage cells expanded in platelet lysate present distinct features to develop an innovative clinical treatment for diffuse cartilage lesions. Knee Surg Sports Traumatol Arthrosc 2024. [PMID: 38842036 DOI: 10.1002/ksa.12305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Revised: 05/14/2024] [Accepted: 05/21/2024] [Indexed: 06/07/2024]
Abstract
PURPOSE Chondrocyte-based cell therapies are effective for the treatment of chondral lesions, but remain poorly indicated for diffuse lesions in the context of early osteoarthritis (OA). The aim of this study was to develop a protocol to obtain chondroprogenitor cells suitable for the treatment of diffuse chondral lesions within early OA. METHODS Cartilage cells were expanded at low density in human platelet lysate (hPL). A test was performed to exclude senescence. The expression of surface cluster of differentiation 146, cluster of differentiation 166, major histocompatibility complex (MHC)-I and MHC-II and of genes of interest were evaluated, as well as the trophic potential of these cells, by the assessment of lubricin and matrix production. The immunomodulatory potential was assessed through their co-culture with macrophages. RESULTS Cartilage cells expanded at low density in hPL showed higher proliferation rate than standard-density cells, no replicative senescence, low immunogenicity and expression of lubricin. Moreover, they presented an increased expression of chondrogenic and antihypertrophic markers, as well as a superior matrix deposition if compared to cells cultured at standard density. Cartilage cells induced on macrophages an upregulation of CD206, although a higher increase of CD163 expression was observed in the presence of low-density cells. CONCLUSIONS These findings lay the grounds to explore the clinical usefulness of low-density cultured cartilage cells to treat diffuse lesions in early OA joints for both autologous and allogenic use. LEVEL OF EVIDENCE Not applicable.
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Affiliation(s)
| | - Silvia Lopa
- Cell and Tissue Engineering Laboratory, IRCCS Istituto Ortopedico Galeazzi, Milan, Italy
| | - Francesca Libonati
- Orthopaedic Biotechnology Lab, IRCCS Istituto Ortopedico Galeazzi, Milan, Italy
| | - Giuseppe Talò
- Cell and Tissue Engineering Laboratory, IRCCS Istituto Ortopedico Galeazzi, Milan, Italy
| | - Katia Mareschi
- Department of Public Health and Paediatrics, University of Turin, Turin, Italy
- Stem Cell Transplantation and Cellular Therapy Laboratory, Paediatric Onco-Haematology Division, Regina Margherita Children's Hospital, City of Health and Science of Turin, Turin, Italy
| | - Elena Marini
- Department of Public Health and Paediatrics, University of Turin, Turin, Italy
| | - Laura Mangiavini
- IRCCS Istituto Ortopedico Galeazzi, Milano, Italy
- Dipartimento di Scienze Biomediche per la Salute, Università degli Studi di Milano, Milan, Italy
| | - Vincenzo Raffo
- Orthopaedic Biotechnology Lab, IRCCS Istituto Ortopedico Galeazzi, Milan, Italy
| | - Matteo Moretti
- Cell and Tissue Engineering Laboratory, IRCCS Istituto Ortopedico Galeazzi, Milan, Italy
- Regenerative Medicine Technologies Laboratory, Laboratories for Translational Research (LRT), Ente Ospedaliero Cantonale (EOC), Bellinzona, Switzerland
- Service of Orthopaedics and Traumatology, Department of Surgery, Ente Ospedaliero Cantonale (EOC), Lugano, Switzerland
- Euler Institute, Faculty of Biomedical Sciences, Università della Svizzera italiana (USI), Lugano, Switzerland
| | - Laura de Girolamo
- Orthopaedic Biotechnology Lab, IRCCS Istituto Ortopedico Galeazzi, Milan, Italy
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Nadeem G, Theerakittayakorn K, Somredngan S, Thi Nguyen H, Boonthai T, Samruan W, Tangkanjanavelukul P, Parnpai R. Induction of Human Wharton's Jelly of Umbilical Cord Derived Mesenchymal Stem Cells to Be Chondrocytes and Transplantation in Guinea Pig Model with Spontaneous Osteoarthritis. Int J Mol Sci 2024; 25:5673. [PMID: 38891860 PMCID: PMC11171648 DOI: 10.3390/ijms25115673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Revised: 05/16/2024] [Accepted: 05/17/2024] [Indexed: 06/21/2024] Open
Abstract
Osteoarthritis (OA) is a degenerative joint disease commonly found in elderly people and obese patients. Currently, OA treatments are determined based on their condition severity and a medical professional's advice. The aim of this study was to differentiate human Wharton's jelly-derived mesenchymal stem cells (hWJ-MSCs) into chondrocytes for transplantation in OA-suffering guinea pigs. hWJ-MSCs were isolated using the explant culture method, and then, their proliferation, phenotypes, and differentiation ability were evaluated. Subsequently, hWJ-MSCs-derived chondrocytes were induced and characterized based on immunofluorescent staining, qPCR, and immunoblotting techniques. Then, early-OA-suffering guinea pigs were injected with hyaluronic acid (HA) containing either MSCs or 14-day-old hWJ-MSCs-derived chondrocytes. Results showed that hWJ-MSCs-derived chondrocytes expressed specific markers of chondrocytes including Aggrecan, type II collagen, and type X collagen proteins and β-catenin, Sox9, Runx2, Col2a1, Col10a1, and ACAN gene expression markers. Administration of HA plus hWJ-MSCs-derived chondrocytes (HA-CHON) produced a better recovery rate of degenerative cartilages than HA plus MSCs or only HA. Histological assessments demonstrated no significant difference in Mankin's scores of recovered cartilages between HA-CHON-treated guinea pigs and normal articular cartilage guinea pigs. Transplantation of hWJ-MSCs-derived chondrocytes was more effective than undifferentiated hWJ-MSCs or hyaluronic acid for OA treatment in guinea pigs. This study provides a promising treatment to be used in early OA patients to promote recovery and prevent disease progression to severe osteoarthritis.
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Affiliation(s)
- Gulrez Nadeem
- Embryo Technology and Stem Cell Research Center, School of Biotechnology, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand; (G.N.); (K.T.); (S.S.); (H.T.N.); (T.B.); (W.S.)
| | - Kasem Theerakittayakorn
- Embryo Technology and Stem Cell Research Center, School of Biotechnology, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand; (G.N.); (K.T.); (S.S.); (H.T.N.); (T.B.); (W.S.)
| | - Sirilak Somredngan
- Embryo Technology and Stem Cell Research Center, School of Biotechnology, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand; (G.N.); (K.T.); (S.S.); (H.T.N.); (T.B.); (W.S.)
| | - Hong Thi Nguyen
- Embryo Technology and Stem Cell Research Center, School of Biotechnology, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand; (G.N.); (K.T.); (S.S.); (H.T.N.); (T.B.); (W.S.)
| | - Traimat Boonthai
- Embryo Technology and Stem Cell Research Center, School of Biotechnology, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand; (G.N.); (K.T.); (S.S.); (H.T.N.); (T.B.); (W.S.)
| | - Worawalan Samruan
- Embryo Technology and Stem Cell Research Center, School of Biotechnology, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand; (G.N.); (K.T.); (S.S.); (H.T.N.); (T.B.); (W.S.)
| | - Ponthep Tangkanjanavelukul
- School of Orthopedic Surgery, Institute of Medicine, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand
| | - Rangsun Parnpai
- Embryo Technology and Stem Cell Research Center, School of Biotechnology, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand; (G.N.); (K.T.); (S.S.); (H.T.N.); (T.B.); (W.S.)
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Tsai CW, Chen TY, Wang JH, Young TH. Effect of Chitosan on Synovial Membrane Derived Cells and Anterior Cruciate Ligament Fibroblasts. Tissue Eng Part A 2024. [PMID: 38695112 DOI: 10.1089/ten.tea.2024.0077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/23/2024] Open
Abstract
Previously, chitosan reduces the senescence-related phenotypes in human foreskin fibroblasts through the transforming growth factor beta (TGF-β) pathway, and enhances the proliferation and migration capabilities of these cells are demonstrated. In this study, we examined whether the senescence-delaying effect of chitosan could be applied to primary knee-related fibroblasts, such as human synovial membrane derived cells (SCs) and anterior cruciate ligament fibroblasts (ACLs). These two types of cells were obtained from donors who needed ACL reconstruction or knee replacement. We found that chitosan treatment effectively reduced aging-associated β-galactosidase (SA-β-gal)-positive cells, downregulated the expression of senescence-related proteins pRB and p53, and enhanced the 5-bromo-2'-deoxyuridine (BrdU) incorporation ability of SCs and ACLs. Moreover, chitosan could make SCs secret more glycosaminoglycans (GAGs) and produce type I collagen. The ability of ACLs to close the wound was also enhanced, and the TGF-β and alpha smooth muscle actin (αSMA) protein expression decreased after chitosan treatment. In summary, chitosan not only delayed the senescence but also enhanced the functions of SCs and ACLs, which is beneficial to the application of chitosan in cell expansion in vitro and cell therapy.
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Affiliation(s)
- Ching-Wen Tsai
- Department of Biomedical Engineering , National Taiwan University, Taipei, Taiwan
- Taiwan Instrument Research Institute, National Applied Research Laboratories, Hsinchu, Taiwan
| | - Tzung-Yu Chen
- Department of Biomedical Engineering , National Taiwan University, Taipei, Taiwan
| | - Jyh-Horng Wang
- Department of Orthopedic Surgery, National Taiwan University Hospital, Taipei, Taiwan
| | - Tai-Horng Young
- Department of Biomedical Engineering , National Taiwan University, Taipei, Taiwan
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10
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Kawabata S, Nakasa T, Nekomoto A, Yimiti D, Miyaki S, Adachi N. Osteophyte Cartilage as a Potential Source for Minced Cartilage Implantation: A Novel Approach for Articular Cartilage Repair in Osteoarthritis. Int J Mol Sci 2024; 25:5563. [PMID: 38791601 PMCID: PMC11122408 DOI: 10.3390/ijms25105563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Revised: 05/17/2024] [Accepted: 05/18/2024] [Indexed: 05/26/2024] Open
Abstract
Osteoarthritis (OA) is a common joint disorder characterized by cartilage degeneration, often leading to pain and functional impairment. Minced cartilage implantation (MCI) has emerged as a promising one-step alternative for large cartilage defects. However, the source of chondrocytes for MCI remains a challenge, particularly in advanced OA, as normal cartilage is scarce. We performed in vitro studies to evaluate the feasibility of MCI using osteophyte cartilage, which is present in patients with advanced OA. Osteophyte and articular cartilage samples were obtained from 22 patients who underwent total knee arthroplasty. Chondrocyte migration and proliferation were assessed using cartilage fragment/atelocollagen composites to compare the characteristics and regenerative potential of osteophytes and articular cartilage. Histological analysis revealed differences in cartilage composition between osteophytes and articular cartilage, with higher expression of type X collagen and increased chondrocyte proliferation in the osteophyte cartilage. Gene expression analysis identified distinct gene expression profiles between osteophytes and articular cartilage; the expression levels of COL2A1, ACAN, and SOX9 were not significantly different. Chondrocytes derived from osteophyte cartilage exhibit enhanced proliferation, and glycosaminoglycan production is increased in both osteophytes and articular cartilage. Osteophyte cartilage may serve as a viable alternative source of MCI for treating large cartilage defects in OA.
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Affiliation(s)
- Shingo Kawabata
- Department of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima City 734-8551, Japan; (S.K.); (A.N.); (D.Y.); (N.A.)
| | - Tomoyuki Nakasa
- Department of Artificial Joints and Biomaterials, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima City 734-8551, Japan
| | - Akinori Nekomoto
- Department of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima City 734-8551, Japan; (S.K.); (A.N.); (D.Y.); (N.A.)
| | - Dilimulati Yimiti
- Department of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima City 734-8551, Japan; (S.K.); (A.N.); (D.Y.); (N.A.)
| | - Shigeru Miyaki
- Medical Center for Translational and Clinical Research, Hiroshima University Hospital, Hiroshima City 734-8551, Japan;
| | - Nobuo Adachi
- Department of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima City 734-8551, Japan; (S.K.); (A.N.); (D.Y.); (N.A.)
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11
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Milián L, Oliver-Ferrándiz M, Peregrín I, Sancho-Tello M, Martín-de-Llano JJ, Martínez-Ramos C, Carda C, Mata M. Alginate Improves the Chondrogenic Capacity of 3D PCL Scaffolds In Vitro: A Histological Approach. Curr Issues Mol Biol 2024; 46:3563-3578. [PMID: 38666953 PMCID: PMC11048942 DOI: 10.3390/cimb46040223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 03/27/2024] [Accepted: 04/17/2024] [Indexed: 04/28/2024] Open
Abstract
Polycaprolactone (PCL) scaffolds have demonstrated an effectiveness in articular cartilage regeneration due to their biomechanical properties. On the other hand, alginate hydrogels generate a 3D environment with great chondrogenic potential. Our aim is to generate a mixed PCL/alginate scaffold that combines the chondrogenic properties of the two biomaterials. Porous PCL scaffolds were manufactured using a modified salt-leaching method and embedded in a culture medium or alginate in the presence or absence of chondrocytes. The chondrogenic capacity was studied in vitro. Type II collagen and aggrecan were measured by immunofluorescence, cell morphology by F-actin fluorescence staining and gene expression of COL1A1, COL2A1, ACAN, COL10A1, VEGF, RUNX1 and SOX6 by reverse transcription polymerase chain reaction (RT-PCR). The biocompatibility of the scaffolds was determined in vivo using athymic nude mice and assessed by histopathological and morphometric analysis. Alginate improved the chondrogenic potential of PCL in vitro by increasing the expression of type II collagen and aggrecan, as well as other markers related to chondrogenesis. All scaffolds showed good biocompatibility in the in vivo model. The presence of cells in the scaffolds induced an increase in vascularization of the PCL/alginate scaffolds. The results presented here reinforce the benefits of the combined use of PCL and alginate for the regeneration of articular cartilage.
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Affiliation(s)
- Lara Milián
- Department of Pathology, Faculty of Medicine and Dentistry, Universitat de València, Blasco Ibáñez Avenue, 15, 46010 Valencia, Spain
- INCLIVA Biomedical Research Institute, Menéndez y Pelayo Street, 4, 46010 Valencia, Spain
| | - María Oliver-Ferrándiz
- Department of Pathology, Faculty of Medicine and Dentistry, Universitat de València, Blasco Ibáñez Avenue, 15, 46010 Valencia, Spain
| | - Ignacio Peregrín
- INCLIVA Biomedical Research Institute, Menéndez y Pelayo Street, 4, 46010 Valencia, Spain
- IMED Hospital, 46100 Valencia, Spain
| | - María Sancho-Tello
- Department of Pathology, Faculty of Medicine and Dentistry, Universitat de València, Blasco Ibáñez Avenue, 15, 46010 Valencia, Spain
- INCLIVA Biomedical Research Institute, Menéndez y Pelayo Street, 4, 46010 Valencia, Spain
| | - José Javier Martín-de-Llano
- Department of Pathology, Faculty of Medicine and Dentistry, Universitat de València, Blasco Ibáñez Avenue, 15, 46010 Valencia, Spain
- INCLIVA Biomedical Research Institute, Menéndez y Pelayo Street, 4, 46010 Valencia, Spain
| | - Cristina Martínez-Ramos
- Centro de Biomateriales e Ingeniería Tisular (CBIT), Universitat Politècnica de València, Camino de Vera, s/n Ciudad Politécnica de la Innovación, Edificio 8E. Acceso F. Nivel 1, 46022 Valencia, Spain
- Biomedical Research Networking Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 28029 Madrid, Spain
| | - Carmen Carda
- Department of Pathology, Faculty of Medicine and Dentistry, Universitat de València, Blasco Ibáñez Avenue, 15, 46010 Valencia, Spain
- INCLIVA Biomedical Research Institute, Menéndez y Pelayo Street, 4, 46010 Valencia, Spain
- Biomedical Research Networking Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 28029 Madrid, Spain
| | - Manuel Mata
- Department of Pathology, Faculty of Medicine and Dentistry, Universitat de València, Blasco Ibáñez Avenue, 15, 46010 Valencia, Spain
- INCLIVA Biomedical Research Institute, Menéndez y Pelayo Street, 4, 46010 Valencia, Spain
- Biomedical Research Networking Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 28029 Madrid, Spain
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12
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Eichinger M, Henninger B, Petry B, Schuster P, Herbst E, Wagner M, Rosenberger R, Mayr R. Treatment of cartilage defects in the patellofemoral joint with matrix-associated autologous chondrocyte implantation effectively improves pain, function, and radiological outcomes after 5-7 years. Arch Orthop Trauma Surg 2024; 144:1655-1665. [PMID: 38206448 PMCID: PMC10965587 DOI: 10.1007/s00402-023-05179-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Accepted: 12/07/2023] [Indexed: 01/12/2024]
Abstract
INTRODUCTION The aim of the present study was to evaluate midterm outcomes 5-7 years after matrix-associated autologous chondrocyte implantation (MACI) in the patellofemoral joint. MATERIALS AND METHODS Twenty-six patients who had undergone MACI using the Novocart® 3D scaffold were prospectively evaluated. Clinical outcomes were determined by measuring the 36-Item Short-Form Health Survey (SF-36) and International Knee Documentation Committee (IKDC) scores and the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) values preoperatively and 3, 6, and 12 months, and a mean of 6 years postoperatively. At the final follow-up, the Magnetic Resonance Observation of Cartilage Repair Tissue (MOCART) score was evaluated. RESULTS Twenty-two patients with 23 focal cartilage defects (19 patella and four trochlea) were available for the final follow-up. The mean defect size was 4.0 ± 1.9 cm2 (range 2.4-9.4 cm2). All clinical outcome scores improved significantly until 5-7 years after MACI (SF-36 score, 61.2 ± 19.6 to 83.2 ± 11.6; P = 0.001; IKDC score, 47.5 ± 20.6 to 74.7 ± 15.5; P < 0.001; and WOMAC, 29.8 ± 15.7 to 8.2 ± 10.3; P < 0.001). The mean MOCART score was 76.0 ± 11.0 at the final follow-up. Nineteen of the 22 patients (86.4%) were satisfied with the outcomes after 5-7 years and responded that they would undergo the procedure again. CONCLUSION MACI in the patellofemoral joint demonstrated good midterm clinical results with a significant reduction in pain, improvement in function, and high patient satisfaction. These clinical findings are supported by radiological evidence from MOCART scores. LEVEL OF EVIDENCE IV-case series.
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Affiliation(s)
- Martin Eichinger
- Department of Orthopaedics and Traumatology, a.ö. Bezirkskrankenhaus St. Johann in Tirol, Bahnhofstraße 14, 6380, St. Johann in Tirol, Austria.
- Department of Orthopaedics and Traumatology, Medical University of Innsbruck, Innsbruck, Austria.
| | - Benjamin Henninger
- Department of Radiology, Medical University of Innsbruck, Innsbruck, Austria
| | - Benjamin Petry
- Department of Orthopaedics and Traumatology, Medical University of Innsbruck, Innsbruck, Austria
- Department of Orthopaedic Surgery, Waikato Hospital, Hamilton, New Zealand
| | - Philipp Schuster
- Department of Sports Orthopaedics and Special Joint Surgery, RKH Orthopaedic Hospital, Markgröningen, Germany
- Department of Orthopaedics and Traumatology, Paracelsus Medical University, Clinic Nuremberg, Nuremberg, Germany
| | - Elmar Herbst
- Department of Trauma, Hand and Reconstructive Surgery, University of Münster, Münster, Germany
| | - Moritz Wagner
- Department of Orthopaedics and Traumatology, a.ö. Bezirkskrankenhaus St. Johann in Tirol, Bahnhofstraße 14, 6380, St. Johann in Tirol, Austria
| | - Ralf Rosenberger
- Department of Orthopaedics and Traumatology, Medical University of Innsbruck, Innsbruck, Austria
- Privatklinik Hochrum, Sanatorium Der Kreuzschwestern, Rum, Austria
| | - Raul Mayr
- Department of Orthopaedics and Traumatology, Medical University of Innsbruck, Innsbruck, Austria
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Tarantino R, Jensen HM, Waldman SD. 13C Metabolic Flux Analysis in Chondrocytes Reveals a Novel Switch in Metabolic Phenotype. Tissue Eng Part A 2024. [PMID: 38368544 DOI: 10.1089/ten.tea.2023.0321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2024] Open
Abstract
Chondrocytes are typically known for their anaerobic metabolism both in vivo and under culture conditions in vitro. However, chondrocytes have been shown to display greater biosynthetic activity when subjected to conditions that elicit aerobic metabolism. We have previously shown that tissue formation by chondrocytes can be upregulated by controlling nutrient availability and that this response arises from changes in glucose metabolism. The aim of the present study was to further characterize these changes through 13C-metabolic flux analysis (13C-MFA), as well as to determine the most optimal response. Primary bovine chondrocytes were grown in scaffold-free high-density tissue culture. [U-13C] glucose labeling experiments were combined with a tissue-specific metabolic network model to carry out 13C-MFA under varying levels of nutrient availability. 13C-MFA results demonstrated that when subjected to increasing nutrient availability, chondrocytes switch from a predominately anaerobic to a mixed aerobic-anaerobic phenotype. This metabolic switch was attributed to the saturation of the lactate fermentation pathway and metabolite overflow toward the tricarboxylic acid cycle. This effect appears to be similar to, but the inverse of, the Crabtree effect ("inverse Crabtree effect"). The relationships between metabolic flux and nutrient availability were then utilized to identify culture conditions that promote enhanced tissue formation. This novel metabolic effect presents a simple but effective approach for enhancing the biosynthetic response of chondrocytes-a key requirement to develop functional engineered cartilaginous tissue for joint resurfacing.
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Affiliation(s)
- Roberto Tarantino
- Department of Chemical Engineering, Toronto Metropolitan University, Toronto, Canada
- Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Canada
- Institute of Biomedical Engineering, Science and Technology (iBEST), Unity Health and Toronto Metropolitan University, Toronto, Canada
| | - Halie Mei Jensen
- Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Canada
- Institute of Biomedical Engineering, Science and Technology (iBEST), Unity Health and Toronto Metropolitan University, Toronto, Canada
- Department of Electrical, Computer, and Biomedical Engineering, Toronto Metropolitan University, Toronto, Canada
| | - Stephen D Waldman
- Department of Chemical Engineering, Toronto Metropolitan University, Toronto, Canada
- Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Canada
- Institute of Biomedical Engineering, Science and Technology (iBEST), Unity Health and Toronto Metropolitan University, Toronto, Canada
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14
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de Caro F, Vuylsteke K, Van Genechten W, Verdonk P. Acellular Aragonite-Based Scaffold for the Treatment of Joint Surface Lesions of the Knee: A Minimum 5-Year Follow-Up Study. Cartilage 2024:19476035241227346. [PMID: 38899593 DOI: 10.1177/19476035241227346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/21/2024] Open
Abstract
OBJECTIVE A novel aragonite-based scaffold has been developed. In this study, mid-term clinical and magnetic resonance imaging (MRI) results on 12 patients affected by isolated chondral or osteochondral lesions of the knee treated by the scaffold implantation have been evaluated at a mean follow-up of 6.5 (range: 5-8) years. DESIGN The study population consisted of 3 females and 9 males, mean age 34.4 (20-51) years. The lesion was located on the medial femoral condyle, the trochlea, and the lateral femoral condyle in 5, 5, and 2 patients, respectively. In all cases, a single lesion over grade 3 of the International Cartilage Restoration and Joint Preservation Society (ICRS) classification was treated: in 9 cases by implantation of one plug, and in 2 cases with 2 plugs; the mean size of the lesion was 2.5 cm2 (1-7). RESULTS One patient failed and was revised with a custom-made metal implant (Episealer). Overall, Knee Injury and Osteoarthritis Outcome Score (KOOS) significantly improved from 45 ± 13 preoperatively to 86 ± 13 at final follow-up. All KOOS subscales improved significantly: pain subscale increased from 48 ± 12 to 92 ± 11; symptoms from 66 ± 13 to 91 ± 13; activity of daily living (ADL) from 60 ± 19 to 90 ± 21; sport from 23 ± 20 to 75 ± 20; finally, quality of life (QoL) increased from 27 ± 14 to 77 ± 19. Long-term MRI MOCART score was 64. CONCLUSIONS This study shows continued significant clinical improvement and good magnetic resonance imaging (MRI) findings with a minimum 5 years follow-up after implantation of a novel aragonite derived scaffold for the treatment of cartilage lesions of the knee. One patient failed and was revised with a custom-made metal implant (Episealer).
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Affiliation(s)
| | | | | | - Peter Verdonk
- MoRE Institute, Antwerp, Belgium
- Orthoca, Antwerp, Belgium
- Antwerp University, Antwerp, Belgium
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15
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Zhang T, Akhter F, Almasri M, Chilelli BJ. All-Arthroscopic Matrix-Associated Autologous Chondrocyte Implantation for a Trochlear Defect. Arthrosc Tech 2024; 13:102895. [PMID: 38584623 PMCID: PMC10995805 DOI: 10.1016/j.eats.2023.102895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 11/26/2023] [Indexed: 04/09/2024] Open
Abstract
Matrix-associated autologous chondrocyte implantation (MACI) is a 2-step technique designed to treat symptomatic full-thickness articular cartilage defects of the knee. In this technique article, MACI (autologous cultured chondrocytes on porcine collagen membrane) is used to treat a femoral trochlear defect of the knee. Treating a defect with this technique leads to improved clinical outcomes by restoring the native chondral surface architecture and biomechanics of the knee. In addition, it has the potential to prevent or delay further progressive degeneration of the joint. It is a 2-stage procedure consisting of an initial arthroscopic cartilage biopsy, followed by 4 to 6 weeks of in vitro chondrocyte expansion and, finally, re-implantation. We recommend performing the MACI procedure arthroscopically for the second stage to treat a femoral trochlear defect. During the second surgical procedure, we examine and prepare the recipient site, followed by graft introduction in an all-arthroscopic manner via dry scoping, secured by a thin layer of fibrin glue.
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Affiliation(s)
- Ting Zhang
- Mercy Health-Cincinnati SportsMedicine and Orthopaedic Center, Cincinnati SportsMedicine Research and Education Foundation, Cincinnati, Ohio, U.S.A
| | - Fauzan Akhter
- Mercy Health-Cincinnati SportsMedicine and Orthopaedic Center, Cincinnati SportsMedicine Research and Education Foundation, Cincinnati, Ohio, U.S.A
| | - Mahmoud Almasri
- Mercy Health-Cincinnati SportsMedicine and Orthopaedic Center, Cincinnati SportsMedicine Research and Education Foundation, Cincinnati, Ohio, U.S.A
| | - Brian J Chilelli
- Mercy Health-Cincinnati SportsMedicine and Orthopaedic Center, Cincinnati SportsMedicine Research and Education Foundation, Cincinnati, Ohio, U.S.A
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16
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Salerno M, Andriolo L, Angelelli L, Buda R, Faldini C, Ferruzzi A, Vannini F, Zaffagnini S, Filardo G. Sex does not influence the long-term outcome of matrix-assisted autologous chondrocyte transplantation. Knee Surg Sports Traumatol Arthrosc 2024. [PMID: 38372188 DOI: 10.1002/ksa.12068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 01/08/2024] [Accepted: 01/09/2024] [Indexed: 02/20/2024]
Abstract
PURPOSE Regenerative techniques for articular cartilage lesions demonstrated heterogeneous clinical results. Several factors may influence the outcome, with sex being one of the most debated. This study aimed at quantifying the long-term influence of sex on the clinical outcome obtained with a regenerative procedure for knee chondral lesions. METHODS Matrix-assisted autologous chondrocyte transplantation (MACT) was used to treat 235 knees which were prospectively evaluated with the International Knee Documentation Committee (IKDC), EuroQol visual analogue scale, and Tegner scores at 14-year mean follow-up. A multilevel analysis was performed with the IKDC subjective scores standardised according to the age/sex category of each patient and/or the selection of a match-paired subgroup to compare homogeneous men and women patients. RESULTS At 14 years, men and women showed a failure rate of 10.7% and 28.8%, respectively (p < 0.0005). An overall improvement was observed in both sexes. Women had more patellar lesions and men more condylar lesions (p = 0.001), and the latter also presented a higher preinjury activity level (p < 0.0005). Men had significantly higher IKDC subjective scores at all follow-ups (at 14 years: 77.2 ± 18.9 vs. 62.8 ± 23.1; p < 0.0005). However, the analysis of homogeneous match-paired populations of men and women, with standardised IKDC subjective scores, showed no differences between men and women (at 14 years: -1.6 ± 1.7 vs. -1.9 ± 1.6). CONCLUSION Men and women treated with MACT for knee chondral lesions presented a significant improvement and stable long-term results. When both sexes are compared with homogeneous match-paired groups, they have similar results over time. However, women present more often unfavourable lesion patterns, which proved more challenging in terms of long-term outcome after MACT. LEVEL OF EVIDENCE Level II.
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Affiliation(s)
- Manuela Salerno
- Applied and Translational Research Center, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Luca Andriolo
- Clinica Ortopedica e Traumatologica 2, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Lucia Angelelli
- Clinica Ortopedica e Traumatologica 2, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Roberto Buda
- Clinica Ortopedica e Traumatologica, Ospedale SS Annunziata, Chieti, Italy
| | - Cesare Faldini
- Clinica Ortopedica e Traumatologica 1, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Alberto Ferruzzi
- Clinica Ortopedica e Traumatologica 1, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Francesca Vannini
- Clinica Ortopedica e Traumatologica 1, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Stefano Zaffagnini
- Clinica Ortopedica e Traumatologica 2, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Giuseppe Filardo
- Applied and Translational Research Center, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
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17
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Walton BL, Shattuck-Brandt R, Hamann CA, Tung VW, Colazo JM, Brand DD, Hasty KA, Duvall CL, Brunger JM. A programmable arthritis-specific receptor for guided articular cartilage regenerative medicine. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.01.31.578281. [PMID: 38352576 PMCID: PMC10862827 DOI: 10.1101/2024.01.31.578281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/22/2024]
Abstract
Objective Investigational cell therapies have been developed as disease-modifying agents for the treatment of osteoarthritis (OA), including those that inducibly respond to inflammatory factors driving OA progression. However, dysregulated inflammatory cascades do not specifically signify the presence of OA. Here, we deploy a synthetic receptor platform that regulates cell behaviors in an arthritis-specific fashion to confine transgene expression to sites characterized by cartilage degeneration. Methods An scFv specific for type II collagen (CII) was used to produce a synthetic Notch (synNotch) receptor that enables "CII-synNotch" mesenchymal stromal cells (MSCs) to recognize CII fibers exposed in damaged cartilage. Engineered cell activation by both CII-treated culture surfaces and on primary tissue samples was measured via inducible reporter transgene expression. TGFβ3-expressing cells were assessed for cartilage anabolic gene expression via qRT-PCR. In a co-culture with CII-synNotch MSCs engineered to express IL-1Ra, ATDC5 chondrocytes were stimulated with IL-1α, and inflammatory responses of ATDC5s were profiled via qRT-PCR and an NF-κB reporter assay. Results CII-synNotch MSCs are highly responsive to CII, displaying activation ranges over 40-fold in response to physiologic CII inputs. CII-synNotch cells exhibit the capacity to distinguish between healthy and damaged cartilage tissue and constrain transgene expression to regions of exposed CII fibers. Receptor-regulated TGFβ3 expression resulted in upregulation of Acan and Col2a1 in MSCs, and inducible IL-1Ra expression by engineered CII-synNotch MSCs reduced pro-inflammatory gene expression in chondrocytes. Conclusion This work demonstrates proof-of-concept that the synNotch platform guides MSCs for spatially regulated, disease-dependent delivery of OA-relevant biologic drugs.
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Affiliation(s)
- Bonnie L Walton
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, 37212, USA
| | | | - Catherine A Hamann
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, 37212, USA
| | - Victoria W Tung
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, 37212, USA
| | - Juan M Colazo
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, 37212, USA
| | - David D Brand
- Research Service, Lt. Col. Luke Weathers, Jr. VA Medical Center, Memphis, TN 38105, USA
| | - Karen A Hasty
- Department of Orthopaedic Surgery and Biomedical Engineering, University of Tennessee Health Science Center, Memphis VA Medical Center, Memphis, TN, USA
| | - Craig L Duvall
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, 37212, USA
- Center for Bone Biology, Vanderbilt University, Nashville, TN 37212, USA
| | - Jonathan M Brunger
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, 37212, USA
- Center for Bone Biology, Vanderbilt University, Nashville, TN 37212, USA
- Center for Stem Cell Biology, Vanderbilt University, Nashville, TN, 37212, USA
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18
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Almohaileb FI, Rasheed Z. Clinical Applicability of Autologous Chondrocyte Implantation for the Treatment of Osteochondral Defects: A Meta-analysis. Curr Rheumatol Rev 2024; 20:317-331. [PMID: 37957845 DOI: 10.2174/0115733971249660231101102757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 08/06/2023] [Accepted: 09/25/2023] [Indexed: 11/15/2023]
Abstract
PURPOSE Osteoarthritis and other joint disorders are the leading cause of disability in the elderly and the treatment of joint lesions is challenging. Autologous chondrocyte implantation (ACI) has been reported with variable effects for the treatment of osteochondral and other joint lesions. In this study, we performed a meta-analysis of the recent literature to determine the clinical applicability of ACI for osteochondral defects. METHODS A meta-analysis was performed on the recent literature showing the effects of ACI on osteochondral defects. The PUBMED, ScienceDirect and Google Scholar databases were used to identify eligible studies from Jan 2010 to Sep 2022. Both fixed and random models of meta-analysis were applied with all reported scoring systems to quantify the effectiveness of ACI on osteochondral defects. RESULTS The pool data of 965 patients as a case series after ACI from a fixed model showed a significant improvement in the osteochondral defects (odds ratio = 8.75, 95%CI = 7.127 to 10.743, p = 0.000). These results were further verified by a random model of meta-analysis. The data also showed a substantial heterogeneity among the studies used in the meta-analysis (Q-value = 160.41, I-squared = 87.53, p = 0.000). Furthermore, this meta-analysis also compared different ACI procedures with different scoring systems but the overall outcome remains the same as ACI was found to be useful for the healing of the osteochondral defects. CONCLUSION This meta-analysis of 965 case series revealed that the ACI markedly improved the damage osteochondral defects scores but the optimal treatment is still controversial, therefore further studies are needed to validate these findings in a clinical setting.
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Affiliation(s)
- Faisal I Almohaileb
- Department of Family and Community Medicine, College of Medicine, Qassim University, Buraidah, Saudi Arabia
| | - Zafar Rasheed
- Department of Pathology, College of Medicine, Qassim University, Buraidah, Saudi Arabia
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19
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Pawelczyk J, Fanourgiakis I, Feil S, Siebold R. Significant improvements in clinical outcome measures and patient satisfaction after combined all-arthroscopic meniscal allograft transplantation and autologous chondrocyte implantation: A single-centre longitudinal study. Knee Surg Sports Traumatol Arthrosc 2024; 32:78-88. [PMID: 38226734 DOI: 10.1002/ksa.12023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Accepted: 12/01/2023] [Indexed: 01/17/2024]
Abstract
PURPOSE The optimal treatment approach for the complex pathology of meniscal insufficiency and coexisting full-thickness cartilage defects remains unclear. The purpose of this study was to evaluate the viability, safety, and efficacy of this combined surgical approach at medium-term follow-up. METHODS This is a single-centre longitudinal study with blinded outcome assessment. All consecutive patients treated with combined all-arthroscopic meniscal allograft transplantation (MAT) with bone bridge fixation and ACI using chondrospheres at our institution between 2001 and 2021 were eligible for inclusion. Twenty patients with an average follow-up of 72.6 ± 34.4 months were included in the statistical analysis. Clinical outcomes were assessed pre- and postoperatively using the IKDC Subjective Knee Form, Lysholm Score, Tegner Activity Scale, KOOS, and Visual Analog Scale (VAS) for patient satisfaction. Failure and reoperation rates were assessed, and cartilage regeneration tissue was evaluated on postoperative MRI. RESULTS IKDC scores significantly improved from 52.1 ± 16.9 to 68.5 ± 16.3 (p = 0.003). Lysholm scores improved from 61.5 ± 21.7 to 78.5 ± 12.9 (p = 0.004). Tegner scores improved from 3.5 (1-4) to 4.0 (2-6) (p = 0.014). KOOS scores improved significantly across all subcategories, except 'symptoms', where improvements did not reach statistical significance. VAS for overall patient satisfaction showed improvements but did not reach statistical significance. The combined procedure was successful in 17 patients (85%). Eight patients had to undergo reoperation (40%), comprising mostly small, arthroscopic procedures. Seven reoperations were directly attributable to meniscal allograft transplantation (46.7%). Postoperative Magnetic Resonance Observation of Cartilage Repair Tissue scores were 68.9 ± 16.8 (n = 14). CONCLUSION Combined arthroscopic MAT and autologous chondrocyte implantation (ACI) is a viable, safe, and effective treatment approach for younger patients with meniscal insufficiency and coexisting full-thickness cartilage damage, where alternative treatment options are limited. The combined surgical procedure achieved significant improvements in clinical outcome measures and patient satisfaction with acceptable failure and high arthroscopic reoperation rates. MAT is the limiting part of this combined procedure, with most failures and reoperations being attributable to MAT, as opposed to ACI. LEVEL OF EVIDENCE Level III.
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Affiliation(s)
| | | | - Sven Feil
- International Center for Orthopedics, ATOS Clinic, Heidelberg, Germany
| | - Rainer Siebold
- International Center for Orthopedics, ATOS Clinic, Heidelberg, Germany
- Institute for Anatomy and Cell Biology, Ruprecht-Karls-University, Heidelberg, Germany
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20
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Velot É, Balmayor ER, Bertoni L, Chubinskaya S, Cicuttini F, de Girolamo L, Demoor M, Grigolo B, Jones E, Kon E, Lisignoli G, Murphy M, Noël D, Vinatier C, van Osch GJVM, Cucchiarini M. Women's contribution to stem cell research for osteoarthritis: an opinion paper. Front Cell Dev Biol 2023; 11:1209047. [PMID: 38174070 PMCID: PMC10762903 DOI: 10.3389/fcell.2023.1209047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 09/18/2023] [Indexed: 01/05/2024] Open
Affiliation(s)
- Émilie Velot
- Laboratory of Molecular Engineering and Articular Physiopathology (IMoPA), French National Centre for Scientific Research, University of Lorraine, Nancy, France
| | - Elizabeth R. Balmayor
- Experimental Orthopaedics and Trauma Surgery, Department of Orthopaedic, Trauma, and Reconstructive Surgery, RWTH Aachen University Hospital, Aachen, Germany
- Rehabilitation Medicine Research Center, Mayo Clinic, Rochester, MN, United States
| | - Lélia Bertoni
- CIRALE, USC 957, BPLC, École Nationale Vétérinaire d'Alfort, Maisons-Alfort, France
| | | | - Flavia Cicuttini
- Musculoskeletal Unit, Monash University and Rheumatology, Alfred Hospital, Melbourne, VIC, Australia
| | - Laura de Girolamo
- IRCCS Ospedale Galeazzi - Sant'Ambrogio, Orthopaedic Biotechnology Laboratory, Milan, Italy
| | - Magali Demoor
- Normandie University, UNICAEN, BIOTARGEN, Caen, France
| | - Brunella Grigolo
- IRCCS Istituto Ortopedico Rizzoli, Laboratorio RAMSES, Bologna, Italy
| | - Elena Jones
- Leeds Institute of Rheumatic and Musculoskeletal Medicine, Leeds, United Kingdom
| | - Elizaveta Kon
- IRCCS Humanitas Research Hospital, Milan, Italy
- Department ofBiomedical Sciences, Humanitas University, Milan, Italy
| | - Gina Lisignoli
- IRCCS Istituto Ortopedico Rizzoli, Laboratorio di Immunoreumatologia e Rigenerazione Tissutale, Bologna, Italy
| | - Mary Murphy
- Regenerative Medicine Institute (REMEDI), School of Medicine, University of Galway, Galway, Ireland
| | - Danièle Noël
- IRMB, University of Montpellier, Inserm, CHU Montpellier, Montpellier, France
| | - Claire Vinatier
- Nantes Université, Oniris, INSERM, Regenerative Medicine and Skeleton, Nantes, France
| | - Gerjo J. V. M. van Osch
- Department of Orthopaedics and Sports Medicine and Department of Otorhinolaryngology, Department of Biomechanical Engineering, University Medical Center Rotterdam, Faculty of Mechanical, Maritime and Materials Engineering, Delft University of Technology, Delft, Netherlands
| | - Magali Cucchiarini
- Center of Experimental Orthopedics, Saarland University and Saarland University Medical Center, Homburg/Saar, Germany
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21
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Heinz T, Oberfeld J, Luetkens KS, Anderson PM, Stratos I, Horas K, Bley TA, Rudert M, Reppenhagen S, Weißenberger M. The AMADEUS score is not a sufficient predictor for functional outcome after autologous chondrocyte implantation (ACI) of the knee: data from the German Cartilage Registry (KnorpelRegister DGOU). Arch Orthop Trauma Surg 2023; 143:7097-7105. [PMID: 37639044 PMCID: PMC10635975 DOI: 10.1007/s00402-023-05037-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 08/13/2023] [Indexed: 08/29/2023]
Abstract
INTRODUCTION The AMADEUS (Area Measurement And DEpth and Underlying Structures) score has advanced to a commonly used tool for MRI-based chondral defect severity grading prior to cartilage knee surgery. It was the intention of this study to assess the AMADEUS for a potential correlation with clinical data by patient-reported outcome measures (PROMs). METHODS A total of 51 patients undergoing ACI (autologous chondrocyte implantation) between 2016 and 2022 were found eligible and retrospectively analyzed. All patients were registered in the German Cartilage Registry prior to surgery and follow-up data were collected using the Knee Osteoarthritis Outcome score (KOOS), the International Knee Documentation Committee (IKDC) Form and the numeric rating scale (NRS). Pre-operative MRI images were scored by three raters using the AMADEUS classification system, and an overall AMADEUS score was calculated which was subsequently correlated with pre- and post-operative PROMs. RESULTS Mean patient age was 32.67 ± 8.37 years and mean defect size area 343.04 mm2 ± 139.45 mm2. No correlative capacity of the pre- and postoperative IKDC, KOOS or NRS scores was found with the AMADEUS final score or any of its subscores. From the pre- to postoperative visit, a significant improvement of the PROMs (IKDC: 45.53 ± 21.00 vs. 59.83 ± 17.93, p = 0.04; KOOS Pain: 58.00 ± 16.70 vs. 76.06 ± 19.20, p = 0.03; KOOS ADL: 64.17 ± 18.76 vs. 82.11 ± 16.68, p < 0.01; KOOS Sports: 26.11 ± 18.52 vs. 50.56 ± 23.94, p = 0.01; KOOS QOL: 25.50 ± 14.26 ± 45.28 ± 19.03, p = 0.00) was found. Intraclass correlation coefficients showed an overall good interrater agreement for the AMADEUS total score (ICC = 0.75). CONCLUSIONS Study results suggest no correlative capacity of the AMADEUS with routinely used PROMs in patients undergoing ACI. Therefore, radiographically assessed cartilage defect characteristics poorly translate to pre- and postoperative patient-reported outcome data.
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Affiliation(s)
- Tizian Heinz
- 1Department of Orthopaedic Surgery, University of Wuerzburg, Koenig-Ludwig-Haus, Brettreichstr. 11, 97074, Würzburg, Germany
| | - Jan Oberfeld
- 1Department of Orthopaedic Surgery, University of Wuerzburg, Koenig-Ludwig-Haus, Brettreichstr. 11, 97074, Würzburg, Germany
| | - Karsten Sebastian Luetkens
- 2Department of Diagnostic and Interventional Radiology, University Hospital Wuerzburg, Oberduerrbacherstr. 6, 97080, Würzburg, Germany
| | - Philip Mark Anderson
- 1Department of Orthopaedic Surgery, University of Wuerzburg, Koenig-Ludwig-Haus, Brettreichstr. 11, 97074, Würzburg, Germany
| | - Ioannis Stratos
- 1Department of Orthopaedic Surgery, University of Wuerzburg, Koenig-Ludwig-Haus, Brettreichstr. 11, 97074, Würzburg, Germany
| | - Konstantin Horas
- 1Department of Orthopaedic Surgery, University of Wuerzburg, Koenig-Ludwig-Haus, Brettreichstr. 11, 97074, Würzburg, Germany
| | - Thorsten Alexander Bley
- 2Department of Diagnostic and Interventional Radiology, University Hospital Wuerzburg, Oberduerrbacherstr. 6, 97080, Würzburg, Germany
| | - Maximilian Rudert
- 1Department of Orthopaedic Surgery, University of Wuerzburg, Koenig-Ludwig-Haus, Brettreichstr. 11, 97074, Würzburg, Germany
| | - Stephan Reppenhagen
- 1Department of Orthopaedic Surgery, University of Wuerzburg, Koenig-Ludwig-Haus, Brettreichstr. 11, 97074, Würzburg, Germany
| | - Manuel Weißenberger
- 1Department of Orthopaedic Surgery, University of Wuerzburg, Koenig-Ludwig-Haus, Brettreichstr. 11, 97074, Würzburg, Germany.
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Allegra F, Picchi A, Ratano M, Gumina S, Fidanza A, Logroscino G. Microfracture- and Xeno-Matrix-Induced Chondrogenesis for Treatment of Focal Traumatic Cartilage Defects of the Knee: Age-Based Mid-Term Results. Healthcare (Basel) 2023; 11:2995. [PMID: 37998487 PMCID: PMC10671418 DOI: 10.3390/healthcare11222995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 11/14/2023] [Accepted: 11/18/2023] [Indexed: 11/25/2023] Open
Abstract
The aim of this study was to investigate clinical and instrumental outcomes of the autologous matrix-induced chondrogenesis (AMIC) technique for the treatment of isolated traumatic condyle and femoropatellar cartilage lesions. A total of 25 patients (12 males, 13 females, mean age 47.3 years) treated between 2018 and 2021 were retrospectively reviewed and subdivided into two groups based on age (Group A, age < 45 years; Group B, age > 45 years). A clinical evaluation was performed using the International Knee Documentation Committee (IKDC), Lysholm score and Visual Analogue Score (VAS). Cartilage regeneration was evaluated via magnetic resonance (1.5 Tesla) and classified according to a Magnetic resonance Observation of CArtilage Repair Tissue (MOCART) scoring system. At a minimum follow-up of 2 years, Group A patients obtained greater instrumental results in comparison to group B: in fact, the MOCART score was statistically significantly correlated with IKDC (r = 0.223) (p < 0.001) exclusively in group A. Nevertheless, a significant improvement in clinical functionality was shown in Group B (p < 0.001), demonstrating that this technique is safe, reproducible and capable of offering satisfactory clinical results regardless of age.
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Affiliation(s)
| | - Aurelio Picchi
- Unit of Orthopaedics, Department of Life, Health and Environmental Sciences, University of L’Aquila, 67100 L’Aquila, Italy (G.L.)
| | - Marco Ratano
- Unit of Orthopaedics, Department of Life, Health and Environmental Sciences, University of L’Aquila, 67100 L’Aquila, Italy (G.L.)
| | - Stefano Gumina
- Department of Anatomy, Histology, Legal Medicine and Orthopaedics, Polo Pontino, Sapienza University of Rome, 00161 Rome, Italy
| | - Andrea Fidanza
- Unit of Orthopaedics, Department of Life, Health and Environmental Sciences, University of L’Aquila, 67100 L’Aquila, Italy (G.L.)
| | - Giandomenico Logroscino
- Unit of Orthopaedics, Department of Life, Health and Environmental Sciences, University of L’Aquila, 67100 L’Aquila, Italy (G.L.)
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23
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Runer A, Ossendorff R, Öttl F, Stadelmann VA, Schneider S, Preiss S, Salzmann GM, Hax J. Autologous minced cartilage repair for chondral and osteochondral lesions of the knee joint demonstrates good postoperative outcomes and low reoperation rates at minimum five-year follow-up. Knee Surg Sports Traumatol Arthrosc 2023; 31:4977-4987. [PMID: 37634136 PMCID: PMC10598129 DOI: 10.1007/s00167-023-07546-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Accepted: 08/09/2023] [Indexed: 08/29/2023]
Abstract
PURPOSE Minced cartilage is a one-step, autologous procedure with promising short-term results. The aim of the present study was to evaluate mid-term results in a patient cohort with chondral and osteochondral lesions in the knee joint treated with minced cartilage. METHODS From 2015 through 2016, a total of 34 consecutive patients were treated with a single-step, autologous minced cartilage for knee chondral and osteochondral lesions. Numeric analogue scale (NAS) for pain and knee function were obtained prior to surgery and at 12, 24 and 60 months postoperatively. Secondary outcomes, including Lysholm score, Tegner activity score, and the International Knee Documentation Committee (IKDC) score, were recorded at final follow-up. MRI examinations of patients with unplanned radiological follow-up were analysed using the MOCART (Magnetic Resonance Observation of Cartilage Repair Tissue) score. RESULTS A total of 28 patients (44.1% females, age at surgery: 29.5 ± 11.5 years) were available at a mean follow-up of 65.5 ± 4.1 months. Mean defect size was 3.5 ± 1.8 cm2. NAS for pain decreased from a median of 7 (range: 2-10) preoperatively to 2 (0-8) postoperatively. NAS knee function improved from a median of 7 (range: 2-10) to 3 (0-7) after five years, respectively. Satisfactory Lysholm (76.5 ± 12.5), IKDC (71.6 ± 14.8) and Tegner activity (4, range 3-9) scores were reported at final follow-up. Of all patients, 21(75%) and 19 (67.9%) reached or exceeded the PASS for the IKDC- and Lysholm score at final follow-up, respectively. The average overall MOCART 2.0 scores for all postoperatively performed MRIs (n = 23) was 62.3 ± 17.4. Four (14.2%) postoperative complications were directly linked to minced cartilage, one (3.5%) of which required revision surgery. CONCLUSION One-step, autologous minced cartilage repair of chondral and osteochondral lesions of the knee without the necessity for subchondral bone treatment demonstrated good patient-reported outcomes, low complication rates, and graft longevity at mid-term follow-up. Minced cartilage represents a viable treatment option to more traditional cartilage repair techniques even in mid-term. LEVEL OF EVIDENCE Level III.
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Affiliation(s)
- Armin Runer
- Department of Sports Orthopaedics, Klinikum rechts der Isar, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany.
| | - Robert Ossendorff
- Department for Orthopaedics and Trauma, University Hospital Bonn, Bonn, Germany
| | - Felix Öttl
- Department of Hip and Knee Surgery, Schulthess Klinik, Zurich, Switzerland
| | | | | | - Stefan Preiss
- Department of Hip and Knee Surgery, Schulthess Klinik, Zurich, Switzerland
| | - Gian M Salzmann
- Department of Hip and Knee Surgery, Schulthess Klinik, Zurich, Switzerland
| | - Jakob Hax
- Department of Hip and Knee Surgery, Schulthess Klinik, Zurich, Switzerland
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Zavala G, Viafara-García SM, Novoa J, Hidalgo C, Contardo I, Díaz-Calderón P, Alejandro González-Arriagada W, Khoury M, Acevedo JP. An advanced biphasic porous and injectable scaffold displays a fine balance between mechanical strength and remodeling capabilities essential for cartilage regeneration. Biomater Sci 2023; 11:6801-6822. [PMID: 37622217 DOI: 10.1039/d3bm00703k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/26/2023]
Abstract
An important challenge in tissue engineering is the regeneration of functional articular cartilage (AC). In the field, biomimetic hydrogels are being extensively studied as scaffolds that recapitulate microenvironmental features or as mechanical supports for transplanted cells. New advanced hydrogel formulations based on salmon methacrylate gelatin (sGelMA), a cold-adapted biomaterial, are presented in this work. The psychrophilic nature of this biomaterial provides rheological advantages allowing the fabrication of scaffolds with high concentrations of the biopolymer and high mechanical strength, suitable for formulating injectable hydrogels with high mechanical strength for cartilage regeneration. However, highly intricate cell-laden scaffolds derived from highly concentrated sGelMA solutions could be deleterious for cells and scaffold remodeling. On this account, the current study proposes the use of sGelMA supplemented with a mesophilic sacrificial porogenic component. The cytocompatibility of different sGelMA-based formulations is tested through the encapsulation of osteoarthritic chondrocytes (OACs) and stimulated to synthesize extracellular matrix (ECM) components in vitro and in vivo. The sGelMA-derived scaffolds reach high levels of stiffness, and the inclusion of porogens impacts positively the scaffold degradability and molecular diffusion, improved fitness of OACs, increased the expression of cartilage-related genes, increased glycosaminoglycan (GAG) synthesis, and improved remodeling toward cartilage-like tissues. Altogether, these data support the use of sGelMA solutions in combination with mammalian solid gelatin beads for highly injectable formulations for cartilage regeneration, strengthening the importance of the balance between mechanical properties and remodeling capabilities.
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Affiliation(s)
- Gabriela Zavala
- Centro de Investigación e Innovación Biomédica (CIIB), Universidad de los Andes, Chile.
- Cells for Cells and REGENERO, The Chilean Consortium for Regenerative Medicine, Santiago, Chile
- IMPACT, Center of Interventional Medicine for Precision and Advanced Cellular Therapy, Santiago, Chile
| | - Sergio M Viafara-García
- Centro de Investigación e Innovación Biomédica (CIIB), Universidad de los Andes, Chile.
- Cells for Cells and REGENERO, The Chilean Consortium for Regenerative Medicine, Santiago, Chile
- IMPACT, Center of Interventional Medicine for Precision and Advanced Cellular Therapy, Santiago, Chile
| | - Javier Novoa
- Centro de Investigación e Innovación Biomédica (CIIB), Universidad de los Andes, Chile.
- Cells for Cells and REGENERO, The Chilean Consortium for Regenerative Medicine, Santiago, Chile
- IMPACT, Center of Interventional Medicine for Precision and Advanced Cellular Therapy, Santiago, Chile
| | - Carmen Hidalgo
- Centro de Investigación e Innovación Biomédica (CIIB), Universidad de los Andes, Chile.
- Cells for Cells and REGENERO, The Chilean Consortium for Regenerative Medicine, Santiago, Chile
- IMPACT, Center of Interventional Medicine for Precision and Advanced Cellular Therapy, Santiago, Chile
| | - Ingrid Contardo
- Centro de Investigación e Innovación Biomédica (CIIB), Universidad de los Andes, Chile.
- Facultad de Medicina, Escuela de Nutrición y Dietética, Biopolymer Research & Engineering Laboratory (BiopREL), Universidad de los Andes, Chile
| | - Paulo Díaz-Calderón
- Centro de Investigación e Innovación Biomédica (CIIB), Universidad de los Andes, Chile.
- Facultad de Medicina, Escuela de Nutrición y Dietética, Biopolymer Research & Engineering Laboratory (BiopREL), Universidad de los Andes, Chile
| | | | - Maroun Khoury
- Centro de Investigación e Innovación Biomédica (CIIB), Universidad de los Andes, Chile.
- Cells for Cells and REGENERO, The Chilean Consortium for Regenerative Medicine, Santiago, Chile
- IMPACT, Center of Interventional Medicine for Precision and Advanced Cellular Therapy, Santiago, Chile
| | - Juan Pablo Acevedo
- Centro de Investigación e Innovación Biomédica (CIIB), Universidad de los Andes, Chile.
- Cells for Cells and REGENERO, The Chilean Consortium for Regenerative Medicine, Santiago, Chile
- IMPACT, Center of Interventional Medicine for Precision and Advanced Cellular Therapy, Santiago, Chile
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25
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Uchio Y, Iwasa J, Kuwata S, Tadenuma T. A Single Case Study Comparing High Tibial Osteotomy With Matrix-Associated Autologous Chondrocyte Implantation With Medial Collateral Ligament Release Treating Bilateral Severe Medial Knee Osteoarthritis. JBJS Case Connect 2023; 13:01709767-202312000-00030. [PMID: 37976387 DOI: 10.2106/jbjs.cc.23.00281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2023]
Abstract
CASE A 62-year-old woman with bilateral severe medial unicompartmental knee osteoarthritis underwent right high tibial osteotomy (HTO) at the age of 49 and left matrix-associated autologous chondrocyte implantation covering with periosteum (pMACI) with medial collateral ligament (MCL) release at age 52 years. At the 13-year follow-up, she could walk and trek with good clinical scores, had high patient satisfaction, and had cartilaginous reparative tissue seen at second-look arthroscopy in her left knee. CONCLUSION This case suggests that pMACI with MCL release might be a possible alternative to HTO in a varus knee undergoing cartilage replacement surgery when HTO is contraindicated.
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Affiliation(s)
- Yuji Uchio
- Department of Orthopaedic Surgery, Shimane University, Izumo, Japan
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26
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Jiang J, Altammar J, Cong X, Ramsauer L, Steinbacher V, Dornseifer U, Schilling AF, Machens HG, Moog P. Hypoxia Preconditioned Serum (HPS) Promotes Proliferation and Chondrogenic Phenotype of Chondrocytes In Vitro. Int J Mol Sci 2023; 24:10441. [PMID: 37445617 PMCID: PMC10341616 DOI: 10.3390/ijms241310441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 06/17/2023] [Accepted: 06/19/2023] [Indexed: 07/15/2023] Open
Abstract
Autologous chondrocyte implantation (ACI) for the treatment of articular cartilage defects remains challenging in terms of maintaining chondrogenic phenotype during in vitro chondrocyte expansion. Growth factor supplementation has been found supportive in improving ACI outcomes by promoting chondrocyte redifferentiation. Here, we analysed the chondrogenic growth factor concentrations in the human blood-derived secretome of Hypoxia Preconditioned Serum (HPS) and assessed the effect of HPS-10% and HPS-40% on human articular chondrocytes from osteoarthritic cartilage at different time points compared to normal fresh serum (NS-10% and NS-40%) and FCS-10% culture conditions. In HPS, the concentrations of TGF-beta1, IGF-1, bFGF, PDGF-BB and G-CSF were found to be higher than in NS. Chondrocyte proliferation was promoted with higher doses of HPS (HPS-40% vs. HPS-10%) and longer stimulation (4 vs. 2 days) compared to FCS-10%. On day 4, immunostaining of the HPS-10%-treated chondrocytes showed increased levels of collagen type II compared to the other conditions. The promotion of the chondrogenic phenotype was validated with quantitative real-time PCR for the expression of collagen type II (COL2A1), collagen type I (COL1A1), SOX9 and matrix metalloproteinase 13 (MMP13). We demonstrated the highest differentiation index (COL2A1/COL1A1) in HPS-10%-treated chondrocytes on day 4. In parallel, the expression of differentiation marker SOX9 was elevated on day 4, with HPS-10% higher than NS-10/40% and FCS-10%. The expression of the cartilage remodelling marker MMP13 was comparable across all culture conditions. These findings implicate the potential of HPS-10% to improve conventional FCS-based ACI culture protocols by promoting the proliferation and chondrogenic phenotype of chondrocytes during in vitro expansion.
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Affiliation(s)
- Jun Jiang
- Experimental Plastic Surgery, Clinic for Plastic, Reconstructive and Hand Surgery, Klinikum Rechts der Isar, Technical University of Munich, D-81675 Munich, Germany
| | - Jannat Altammar
- Experimental Plastic Surgery, Clinic for Plastic, Reconstructive and Hand Surgery, Klinikum Rechts der Isar, Technical University of Munich, D-81675 Munich, Germany
| | - Xiaobin Cong
- Experimental Plastic Surgery, Clinic for Plastic, Reconstructive and Hand Surgery, Klinikum Rechts der Isar, Technical University of Munich, D-81675 Munich, Germany
| | - Lukas Ramsauer
- Institute of Molecular Immunology and Experimental Oncology, Klinikum Rechts der Isar, Technical University of Munich, D-81675 Munich, Germany
| | - Vincent Steinbacher
- Institute of Molecular Immunology and Experimental Oncology, Klinikum Rechts der Isar, Technical University of Munich, D-81675 Munich, Germany
| | - Ulf Dornseifer
- Department of Plastic, Reconstructive and Aesthetic Surgery, Isar Klinikum, D-80331 Munich, Germany
| | - Arndt F. Schilling
- Department of Trauma Surgery, Orthopedics and Plastic Surgery, University Medical Center Göttingen, D-37075 Göttingen, Germany
| | - Hans-Günther Machens
- Experimental Plastic Surgery, Clinic for Plastic, Reconstructive and Hand Surgery, Klinikum Rechts der Isar, Technical University of Munich, D-81675 Munich, Germany
| | - Philipp Moog
- Experimental Plastic Surgery, Clinic for Plastic, Reconstructive and Hand Surgery, Klinikum Rechts der Isar, Technical University of Munich, D-81675 Munich, Germany
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Sadri B, Hassanzadeh M, Bagherifard A, Mohammadi J, Alikhani M, Moeinabadi-Bidgoli K, Madani H, Diaz-Solano D, Karimi S, Mehrazmay M, Mohammadpour M, Vosough M. Cartilage regeneration and inflammation modulation in knee osteoarthritis following injection of allogeneic adipose-derived mesenchymal stromal cells: a phase II, triple-blinded, placebo controlled, randomized trial. Stem Cell Res Ther 2023; 14:162. [PMID: 37316949 DOI: 10.1186/s13287-023-03359-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Accepted: 04/28/2023] [Indexed: 06/16/2023] Open
Abstract
BACKGROUND Intra-articular injection of mesenchymal stromal cells (MSCs) with immunomodulatory features and their paracrine secretion of regenerative factors proposed a noninvasive therapeutic modality for cartilage regeneration in knee osteoarthritis (KOA). METHODS Total number of 40 patients with KOA enrolled in two groups. Twenty patients received intra-articular injection of 100 × 106 allogeneic adipose-derived mesenchymal stromal cells (AD-MSCs), and 20 patients as control group received placebo (normal saline). Questionnaire-based measurements, certain serum biomarkers, and some cell surface markers were evaluated for 1 year. Magnetic resonance imaging (MRI) before and 1 year after injection was performed to measure possible changes in the articular cartilage. RESULTS Forty patients allocated including 4 men (10%) and 36 women (90%) with average age of 56.1 ± 7.2 years in control group and 52.8 ± 7.5 years in AD-MSCs group. Four patients (two patients from AD-MSCs group and two patients from the control group) excluded during the study. Clinical outcome measures showed improvement in AD-MSCs group. Hyaluronic acid and cartilage oligomeric matrix protein levels in blood serum decreased significantly in patients who received AD-MSCs (P < 0.05). Although IL-10 level significantly increased after 1 week (P < 0.05), the serum level of inflammatory markers dramatically decreased after 3 months (P < 0.001). Expressions of CD3, CD4, and CD8 have a decreasing trend during 6-month follow-up (P < 0.05), (P < 0.001), and (P < 0.001), respectively. However, the number of CD25+ cells increased remarkably in the treatment group 3 months after intervention (P < 0.005). MRI findings showed a slight increase in the thickness of tibial and femoral articular cartilages in AD-MSCs group. The changes were significant in the medial posterior and medial anterior areas of the tibia with P < 0.01 and P < 0.05, respectively. CONCLUSION Inter-articular injection of AD-MSCs in patients with KOA is safe. Laboratory data, MRI findings, and clinical examination of patients at different time points showed notable articular cartilage regeneration and significant improvement in the treatment group. TRIAL REGISTRATION Iranian registry of clinical trials (IRCT, https://en.irct.ir/trial/46 ), IRCT20080728001031N23. Registered 24 April 2018.
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Affiliation(s)
- Bahareh Sadri
- Department of Regenerative Medicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Mohammad Hassanzadeh
- Bone and Joint Reconstruction Research Center, Department of Orthopedics, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Abolfazl Bagherifard
- Bone and Joint Reconstruction Research Center, Department of Orthopedics, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
| | - Javad Mohammadi
- Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
| | - Mehdi Alikhani
- Department of Regenerative Medicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Kasra Moeinabadi-Bidgoli
- Department of Regenerative Medicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Hoda Madani
- Department of Regenerative Medicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Dylana Diaz-Solano
- Department of Regenerative Medicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
- Unidad de Terapia Celular - Laboratorio de Patología Celular y Molecular, Instituto Venezolano de Investigaciones Científicas (IVIC), Apartado 21827, 1020-A, Caracas, Venezuela
| | - Shahedeh Karimi
- Department of Regenerative Medicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | | | - Mehdi Mohammadpour
- Bone and Joint Reconstruction Research Center, Department of Orthopedics, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Massoud Vosough
- Department of Regenerative Medicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran.
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Haq-Siddiqi NA, Britton D, Kim Montclare J. Protein-engineered biomaterials for cartilage therapeutics and repair. Adv Drug Deliv Rev 2023; 192:114647. [PMID: 36509172 DOI: 10.1016/j.addr.2022.114647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Revised: 10/17/2022] [Accepted: 12/05/2022] [Indexed: 12/13/2022]
Abstract
Cartilage degeneration and injury are major causes of pain and disability that effect millions, and yet treatment options for conditions like osteoarthritis (OA) continue to be mainly palliative or involve complete replacement of injured joints. Several biomaterial strategies have been explored to address cartilage repair either by the delivery of therapeutics or as support for tissue repair, however the complex structure of cartilage tissue, its mechanical needs, and lack of regenerative capacity have hindered this goal. Recent advances in synthetic biology have opened new possibilities for engineered proteins to address these unique needs. Engineered protein and peptide-based materials benefit from inherent biocompatibility and nearly unlimited tunability as they utilize the body's natural building blocks to fabricate a variety of supramolecular structures. The pathophysiology and needs of OA cartilage are presented here, along with an overview of the current state of the art and next steps for protein-engineered repair strategies for cartilage.
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Affiliation(s)
- Nada A Haq-Siddiqi
- Department of Chemical and Biomolecular Engineering, New York University Tandon School of Engineering, Brooklyn, NY 11201, United States
| | - Dustin Britton
- Department of Chemical and Biomolecular Engineering, New York University Tandon School of Engineering, Brooklyn, NY 11201, United States
| | - Jin Kim Montclare
- Department of Chemical and Biomolecular Engineering, New York University Tandon School of Engineering, Brooklyn, NY 11201, United States; Department of Chemistry, New York University, New York 10003, United States; Department of Radiology, New York University Grossman School of Medicine, New York 10016, United States; Department of Biomaterials, NYU College of Dentistry, New York, NY 10010, United States; Department of Biomedical Engineering, New York University Tandon School of Engineering, Brooklyn, NY 11201, United States.
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