1
|
Rajasekaran S, Neupane H, Bawa M, Saikia UN, Lal S, Mitra S. Hyaline cartilage at the portal plate and gallbladder in biliary atresia. Autops Case Rep 2024; 14:e2024481. [PMID: 38628285 PMCID: PMC11021023 DOI: 10.4322/acr.2024.481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Accepted: 02/28/2024] [Indexed: 04/19/2024]
Abstract
Biliary atresia (BA) is a fibro-obliterative cholestatic disease of infancy. The presence of cartilage in the resected tissue is an uncommon finding. We documented the presence of both mature and immature hyaline cartilage in the portal plate and the wall of the gallbladder in a 2-month-old girl infant with BA who had undergone Kasai portoenterostomy. The presence of cartilage could be part of a heterotopia or an uncommon connective tissue metaplasia. The presence of immature cartilage with the merging of the perichondrium with the soft tissue highlights a metaplastic etiology in the index case.
Collapse
Affiliation(s)
- Sangamitra Rajasekaran
- Post Graduate Institute of Medical Education and Research (PGIMER), Department of Histopathology, Chandigarh, India
| | - Hari Neupane
- Post Graduate Institute of Medical Education and Research (PGIMER), Department of Histopathology, Chandigarh, India
| | - Monika Bawa
- Post Graduate Institute of Medical Education and Research (PGIMER), Department of Pediatric Surgery, Chandigarh, India
| | - Uma Nahar Saikia
- Post Graduate Institute of Medical Education and Research (PGIMER), Department of Histopathology, Chandigarh, India
| | - Sadhna Lal
- Post Graduate Institute of Medical Education and Research (PGIMER), Department of Pediatric Gastroenterology, Hepatology, and Nutrition, Chandigarh, India
| | - Suvradeep Mitra
- Post Graduate Institute of Medical Education and Research (PGIMER), Department of Histopathology, Chandigarh, India
| |
Collapse
|
2
|
Chiu C, Zheng K, Xue M, Du D. Comparative Analysis of Hyaline Cartilage Characteristics and Chondrocyte Potential for Articular Cartilage Repair. Ann Biomed Eng 2024; 52:920-933. [PMID: 38190025 DOI: 10.1007/s10439-023-03429-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Accepted: 12/19/2023] [Indexed: 01/09/2024]
Abstract
This study aimed to compare the histological, biochemical, and mechanical characteristics of hyaline cartilage in different regions and evaluate the potential of chondrocytes extracted from each region as donor sources for articular cartilage repair. The cartilage tissues of the femoral head and knee joint, ribs, nasal septum, thyroid, and xiphoid process of adult Bama pigs were isolated for histological, biochemical, and mechanical evaluation and analysis. The corresponding chondrocytes were isolated and evaluated for proliferation and redifferentiation capacity, using biochemical and histological analysis and RT-PCR experiments. Compared with articular cartilage, non-articular hyaline cartilage matrix stained more intensely in Safranin-O staining. Glycosaminoglycan and total collagen content were similar among all groups, while the highest content was measured in nasal septal cartilage. Regarding biomechanics, non-articular cartilage is similar to articular cartilage, but the elastic modulus and hardness are significantly higher in the middle region of costal cartilage. The chondrocytes extracted from different regions had no significant difference in morphology. Hyaline cartilage-like pellets were formed in each group after redifferentiation. The RT-PCR results revealed similar expressions of cartilage-related genes across the groups, albeit with lower expression of Col2 in the xiphoid chondrocytes. Conversely, higher expression of Col10 was observed in the chondrocytes from the rib, thyroid, and xiphoid cartilage. This study provides valuable preclinical data for evaluating heterotopic hyaline cartilage and chondrocytes for articular cartilage regeneration. The findings contribute to the selection of chondrocyte origins and advance the clinical translation of technology for cartilage regeneration.
Collapse
Affiliation(s)
- Cheng Chiu
- Department of Orthopedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, 600 Yishan Rd, Shanghai, 200233, China
| | - Kaiwen Zheng
- Department of Orthopedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, 600 Yishan Rd, Shanghai, 200233, China
| | - Mengxin Xue
- Department of Orthopedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, 600 Yishan Rd, Shanghai, 200233, China
| | - Dajiang Du
- Department of Orthopedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, 600 Yishan Rd, Shanghai, 200233, China.
| |
Collapse
|
3
|
Mahajan A, Nengroo MA, Datta D, Katti DS. Converse modulation of Wnt/β-catenin signaling during expansion and differentiation phases of Infrapatellar fat pad-derived MSCs for improved engineering of hyaline cartilage. Biomaterials 2023; 302:122296. [PMID: 37696204 DOI: 10.1016/j.biomaterials.2023.122296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 08/14/2023] [Accepted: 08/25/2023] [Indexed: 09/13/2023]
Abstract
Mesenchymal stem cells (MSCs) are potential candidates in cell-based therapy for cartilage repair and regeneration. However, during chondrogenic differentiation, MSCs undergo undesirable hypertrophic maturation. This poses a risk of ossification in the neo-tissue formed that eventually impedes the clinical use of MSCs for cartilage repair. TGF-β is a potent growth factor used for chondrogenic differentiation of MSCs, however, its role in hypertrophy remains ambiguous. In the present work, we decipher that TGF-β activates Wnt/β-catenin signaling through SMAD3 and increases the propensity of Infrapatellar fat pad derived MSCs (IFP-MSCs) towards hypertrophy. Notably, inhibiting TGF-β induced Wnt/β-catenin signaling suppresses hypertrophic progression and enhances chondrogenic ability of IFP-MSCs in plasma hydrogels. Additionally, we demonstrate that activating Wnt signaling during expansion phase, promotes proliferation and reduces senescence, while improving stemness of IFP-MSCs. Thus, conversely modulating Wnt signaling in vitro during expansion and differentiation phases generates hyaline-like cartilage with minimal hypertrophy. Importantly, pre-treatment of IFP-MSCs encapsulated in plasma hydrogel with Wnt modulators followed by subcutaneous implantation in nude mice resulted in formation of a cartilage tissue with negligible calcification. Overall, this study provides technological advancement on targeting Wnt/β-catenin pathway in a 3D scaffold, while maintaining the standard chondro-induction protocol to overcome the challenges associated with the clinical use of MSCs to engineer hyaline cartilage.
Collapse
Affiliation(s)
- Aman Mahajan
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology-Kanpur, Kanpur, 208016, Uttar Pradesh, India; The Mehta Family Centre for Engineering in Medicine, Indian Institute of Technology-Kanpur, Kanpur, 208016, Uttar Pradesh, India
| | - Mushtaq A Nengroo
- Cancer Biology Division, CSIR-Central Drug Research Institute, Lucknow, 226031, Uttar Pradesh, India
| | - Dipak Datta
- Cancer Biology Division, CSIR-Central Drug Research Institute, Lucknow, 226031, Uttar Pradesh, India
| | - Dhirendra S Katti
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology-Kanpur, Kanpur, 208016, Uttar Pradesh, India; The Mehta Family Centre for Engineering in Medicine, Indian Institute of Technology-Kanpur, Kanpur, 208016, Uttar Pradesh, India.
| |
Collapse
|
4
|
Dai W, Cheng J, Yan W, Cao C, Zhao F, Li Q, Hu X, Wang J, Ao Y. Enhanced osteochondral repair with hyaline cartilage formation using an extracellular matrix-inspired natural scaffold. Sci Bull (Beijing) 2023; 68:1904-1917. [PMID: 37558534 DOI: 10.1016/j.scib.2023.07.050] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Revised: 07/03/2023] [Accepted: 07/26/2023] [Indexed: 08/11/2023]
Abstract
Osteochondral defects pose a great challenge and a satisfactory strategy for their repair has yet to be identified. In particular, poor repair could result in the generation of fibrous cartilage and subchondral bone, causing the degeneration of osteochondral tissue and eventually leading to repair failure. Herein, taking inspiration from the chemical elements inherent in the natural extracellular matrix (ECM), we proposed a novel ECM-mimicking scaffold composed of natural polysaccharides and polypeptides for osteochondral repair. By meticulously modifying natural biopolymers to form reversible guest-host and rigid covalent networks, the scaffold not only exhibited outstanding biocompatibility, cell adaptability, and biodegradability, but also had excellent mechanical properties that can cater to the environment of osteochondral tissue. Additionally, benefiting from the drug-loading group, chondrogenic and osteogenic drugs could be precisely integrated into the specific zone of the scaffold, providing a tissue-specific microenvironment to facilitate bone and cartilage differentiation. In rabbit osteochondral defects, the ECM-inspired scaffold not only showed a strong capacity to promote hyaline cartilage formation with typical lacuna structure, sufficient mechanical strength, good elasticity, and cartilage-specific ECM deposition, but also accelerated the regeneration of quality subchondral bone with high bone mineralization density. Furthermore, the new cartilage and subchondral bone were heterogeneous, a trait that is typical of the natural landscape, reflecting the gradual progression from cartilage to subchondral bone. These results suggest the potential value of this bioinspired osteochondral scaffold for clinical applications.
Collapse
Affiliation(s)
- Wenli Dai
- Beijing Key Laboratory of Sports Injuries, Institute of Sports Medicine of Peking University, Peking University Third Hospital, Beijing 100191, China
| | - Jin Cheng
- Beijing Key Laboratory of Sports Injuries, Institute of Sports Medicine of Peking University, Peking University Third Hospital, Beijing 100191, China
| | - Wenqiang Yan
- Beijing Key Laboratory of Sports Injuries, Institute of Sports Medicine of Peking University, Peking University Third Hospital, Beijing 100191, China
| | - Chenxi Cao
- Beijing Key Laboratory of Sports Injuries, Institute of Sports Medicine of Peking University, Peking University Third Hospital, Beijing 100191, China
| | - Fengyuan Zhao
- Beijing Key Laboratory of Sports Injuries, Institute of Sports Medicine of Peking University, Peking University Third Hospital, Beijing 100191, China
| | - Qi Li
- Beijing Key Laboratory of Sports Injuries, Institute of Sports Medicine of Peking University, Peking University Third Hospital, Beijing 100191, China
| | - Xiaoqing Hu
- Beijing Key Laboratory of Sports Injuries, Institute of Sports Medicine of Peking University, Peking University Third Hospital, Beijing 100191, China.
| | - Jianquan Wang
- Beijing Key Laboratory of Sports Injuries, Institute of Sports Medicine of Peking University, Peking University Third Hospital, Beijing 100191, China.
| | - Yingfang Ao
- Beijing Key Laboratory of Sports Injuries, Institute of Sports Medicine of Peking University, Peking University Third Hospital, Beijing 100191, China.
| |
Collapse
|
5
|
Fani N, Peshkova M, Bikmulina P, Golroo R, Timashev P, Vosough M. Fabricating the cartilage: recent achievements. Cytotechnology 2023; 75:269-292. [PMID: 37389132 PMCID: PMC10299965 DOI: 10.1007/s10616-023-00582-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 05/09/2023] [Indexed: 07/01/2023] Open
Abstract
This review aims to describe the most recent achievements and provide an insight into cartilage engineering and strategies to restore the cartilage defects. Here, we discuss cell types, biomaterials, and biochemical factors applied to form cartilage tissue equivalents and update the status of fabrication techniques, which are used at all stages of engineering the cartilage. The actualized concept to improve the cartilage tissue restoration is based on applying personalized products fabricated using a full cycle platform: a bioprinter, a bioink consisted of ECM-embedded autologous cell aggregates, and a bioreactor. Moreover, in situ platforms can help to skip some steps and enable adjusting the newly formed tissue in the place during the operation. Only some achievements described have passed first stages of clinical translation; nevertheless, the number of their preclinical and clinical trials is expected to grow in the nearest future.
Collapse
Affiliation(s)
- Nesa Fani
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
- Department of Regenerative Medicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Maria Peshkova
- Institute for Regenerative Medicine, Sechenov University, Moscow, Russia
| | - Polina Bikmulina
- Institute for Regenerative Medicine, Sechenov University, Moscow, Russia
- World-Class Research Center “Digital Biodesign and Personalized Healthcare”, Sechenov University, Moscow, Russia
| | - Reihaneh Golroo
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Peter Timashev
- Institute for Regenerative Medicine, Sechenov University, Moscow, Russia
- World-Class Research Center “Digital Biodesign and Personalized Healthcare”, Sechenov University, Moscow, Russia
| | - Massoud Vosough
- Department of Regenerative Medicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| |
Collapse
|
6
|
Horng A. [Knee cartilage injuries in athletes]. Radiologie (Heidelb) 2023; 63:241-248. [PMID: 36877296 DOI: 10.1007/s00117-023-01128-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 02/09/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND Acute and chronic cartilage injuries are often encountered in professional and recreational athletes. They can compromise the athlete's performance and career and are considered a potential risk factor for early joint degeneration. OBJECTIVES Incidence of cartilage injury in athletes, understanding of cartilage composition, injury mechanism and suitable diagnostic imaging are summarized and established therapeutic procedures, postoperative imaging including detection of relevant complications and assessment of reasonable indications for follow-up examinations are described. METHODS Original research and review articles were analyzed. RESULTS Cartilage injury can mimic meniscal or ligamentous injury and cannot be ruled out by clinical examination alone. Magnetic resonance imaging (MRI) is the method of choice to (1) detect (sensitivity 87-93%, specificity 94-99%) and grade cartilage lesions to facilitate choice of therapy and (2) to exclude concomitant injuries that require treatment to improve the prognosis of the chosen cartilage therapy. Postoperatively MRI allows noninvasive assessment of the repaired cartilage tissue and is an appropriate method to detect therapeutically relevant complications. CONCLUSIONS Knowledge of mechanisms and appearance of cartilage injuries, current cartilage repair techniques and their imaging is crucial for the medical care of athletes.
Collapse
Affiliation(s)
- Annie Horng
- RZM - Radiologisches Zentrum München, Pippinger Straße 25, 81245, München, Deutschland.
| |
Collapse
|
7
|
Lan X, Boluk Y, Adesida AB. 3D Bioprinting of Hyaline Cartilage Using Nasal Chondrocytes. Ann Biomed Eng 2023:10.1007/s10439-023-03176-3. [PMID: 36952145 DOI: 10.1007/s10439-023-03176-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Accepted: 02/22/2023] [Indexed: 03/24/2023]
Abstract
Due to the limited self-repair capacity of the hyaline cartilage, the repair of cartilage remains an unsolved clinical problem. Tissue engineering strategy with 3D bioprinting technique has emerged a new insight by providing patient's personalized cartilage grafts using autologous cells for hyaline cartilage repair and regeneration. In this review, we first summarized the intrinsic property of hyaline cartilage in both maxillofacial and orthopedic regions to establish the requirement for 3D bioprinting cartilage tissue. We then reviewed the literature and provided opinion pieces on the selection of bioprinters, bioink materials, and cell sources. This review aims to identify the current challenges for hyaline cartilage bioprinting and the directions for future clinical development in bioprinted hyaline cartilage.
Collapse
Affiliation(s)
- Xiaoyi Lan
- Department of Civil and Environmental Engineering, Faculty of Engineering, University of Alberta, Edmonton, AB, Canada
| | - Yaman Boluk
- Department of Civil and Environmental Engineering, Faculty of Engineering, University of Alberta, Edmonton, AB, Canada.
| | - Adetola B Adesida
- Department of Surgery, Divisions of Orthopedic Surgery & Surgical Research, Faculty of Medicine & Dentistry, Li Ka Shing Centre for Health Research Innovation, University of Alberta, Edmonton, AB, Canada.
- Department of Surgery, Division of Otolaryngology, Faculty of Medicine & Dentistry, Li Ka Shing Centre for Health Research Innovation, University of Alberta, Edmonton, AB, Canada.
| |
Collapse
|
8
|
Korpershoek JV, Rikkers M, Vonk LA. Isolation of Chondrons from Hyaline Cartilage. Methods Mol Biol 2023; 2598:21-27. [PMID: 36355282 DOI: 10.1007/978-1-0716-2839-3_3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
In native healthy hyaline cartilage, the chondrocytes are surrounded by a pericellular matrix that has a distinct composition and function compared to the hyaline cartilage extracellular matrix. The chondrocyte together with its pericellular matrix is called a chondron. The type VI collagen, which is the main component of the pericellular matrix, is resistant to enzymatic digestion by pure collagenase and dispase that do digest the extracellular matrix. Therefore, this combination of enzymes can be used to enzymatically isolate chondrons from hyaline cartilage. Chondrons have a high potential for cartilage tissue engineering. This chapter describes in detail how chondrons can be isolated from hyaline cartilage for further use.
Collapse
Affiliation(s)
- Jasmijn V Korpershoek
- Department of Orthopaedics, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Margot Rikkers
- Department of Orthopaedics, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Lucienne A Vonk
- Department of Orthopaedics, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands.
- CO.DON AG, Teltow, Germany.
- Xintela AB, Lund, Sweden.
| |
Collapse
|
9
|
Erica G, Edi S, Giovanna A, Mariarita C, Deborah S, Filippo R, Alessandro M, Piero N, Laura A. Characterization of a decellularized rat larynx: comparison between microscopy techniques. Ann Anat 2023; 245:152020. [PMID: 36367516 DOI: 10.1016/j.aanat.2022.152020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 10/13/2022] [Accepted: 10/13/2022] [Indexed: 11/05/2022]
Abstract
BACKGROUND No effective method has yet been developed to efficiently reconstruct the larynx and restore its function. Decellularization has recently been tested for this purpose with very promising results. The goal of decellularization is to remove cells leaving an intact scaffold made of an extracellular matrix (ECM). Although the use of hematoxylin/eosin and Masson trichrome stains is widely accepted to highlight tissue structure, the methods based on evaluation of collagen and elastin are considered highly variable. The aim of this study was to develop a whole organ decellularization protocol and compare the qualitative and quantitative efficiency of some microscopy techniques for collagen and elastin detection in paraffin-embedded tissues. METHODS H&E, Masson Trichrome and DAPI staining as well as DNA quantification were used to evaluate decellularization efficiency. Van Gieson stain, Picrosirius Red stain (PRS) and multiphoton laser scanning microscopy (MPM) were carried out for collagen detection and quantitative assessment. Polarized PRS was used to investigate collagen network, and Weigert stain and MPM were used to detect and estimate elastin content. RESULTS The decellularization process removed the cellular components without affecting glycosaminoglycan, collagen and elastin content. Concerning collagen quantification, Van Gieson stain underestimated collagen content, while PRS, apparently less fading, did not reach reliable results when used as quantitative method. MPM effectively quantified collagen content. Collagen fibers were visualized much better under polarized light microscopy, allowing to underline that decellularization process affects the homogeneity of 3D collagen network. Concerning elastin detection, Weigert stain and MPM produced overlapping results. CONCLUSIONS An efficient protocol to decellularize the whole larynx was developed, allowing the removal of cells without affecting ECM integrity. The results supported the use of non-polarized PRS to highlight collagen, even the thin fibers, second harmonic generation for major fibrillar collagens and polarized PRS for 3D collagen network. Concerning elastin, Weigert stain and MPM showed similar results, thus the use of MPM, rather than that of the Weigert stain, may be suitable to avoid the additional time and costs of a histological staining.
Collapse
Affiliation(s)
- Gentilin Erica
- Bioacoustics Research Laboratory, Department of Neurosciences, University of Padua, via G. Orus, 2b, 35129 Padua, Italy; LIFELAB Program, Consorzio per la Ricerca Sanitaria-CORIS, Veneto Region, 35128 Padua, Italy.
| | - Simoni Edi
- Bioacoustics Research Laboratory, Department of Neurosciences, University of Padua, via G. Orus, 2b, 35129 Padua, Italy; LIFELAB Program, Consorzio per la Ricerca Sanitaria-CORIS, Veneto Region, 35128 Padua, Italy
| | - Albertin Giovanna
- CIR-Myo - Interdepartmental Research Center of Myology, University of Padua, Italy; Section of Human Anatomy, Department of Neuroscience, University of Padua, Italy, University of Padua, Italy
| | - Candito Mariarita
- Bioacoustics Research Laboratory, Department of Neurosciences, University of Padua, via G. Orus, 2b, 35129 Padua, Italy; LIFELAB Program, Consorzio per la Ricerca Sanitaria-CORIS, Veneto Region, 35128 Padua, Italy
| | - Sandrin Deborah
- LIFELAB Program, Consorzio per la Ricerca Sanitaria-CORIS, Veneto Region, 35128 Padua, Italy; Department of Physics and Astronomy "G. Galilei", University of Padua, via Marzolo 8, 35131 Padua, Italy
| | - Romanato Filippo
- LIFELAB Program, Consorzio per la Ricerca Sanitaria-CORIS, Veneto Region, 35128 Padua, Italy; Department of Physics and Astronomy "G. Galilei", University of Padua, via Marzolo 8, 35131 Padua, Italy; Laboratory of Optics and Bioimaging, Institute of Pediatric Research Città della Speranza, 35127 Padua, Italy
| | - Martini Alessandro
- Bioacoustics Research Laboratory, Department of Neurosciences, University of Padua, via G. Orus, 2b, 35129 Padua, Italy
| | - Nicolai Piero
- Bioacoustics Research Laboratory, Department of Neurosciences, University of Padua, via G. Orus, 2b, 35129 Padua, Italy; Section of Otorhinolaryngology-Head and Neck Surgery, Department of Neurosciences, University of Padua, via G. Orus, 2b, 35129 Padua, Italy
| | - Astolfi Laura
- Bioacoustics Research Laboratory, Department of Neurosciences, University of Padua, via G. Orus, 2b, 35129 Padua, Italy; LIFELAB Program, Consorzio per la Ricerca Sanitaria-CORIS, Veneto Region, 35128 Padua, Italy.
| |
Collapse
|
10
|
Vonk LA. Potency Assay Considerations for Cartilage Repair, Osteoarthritis and Use of Extracellular Vesicles. Adv Exp Med Biol 2023; 1420:59-80. [PMID: 37258784 DOI: 10.1007/978-3-031-30040-0_5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Articular cartilage covers the ends of bones in synovial joints acting as a shock absorber that helps movement of bones. Damage of the articular cartilage needs treatment as it does not repair itself and the damage can progress to osteoarthritis. In osteoarthritis all the joint tissues are involved with characteristic progressive cartilage degradation and inflammation. Autologous chondrocyte implantation is a well-proven cell-based treatment for cartilage defects, but a main downside it that it requires two surgeries. Multipotent, aka mesenchymal stromal cell (MSC)-based cartilage repair has gained attention as it can be used as a one-step treatment. It is proposed that a combination of immunomodulatory and regenerative capacities make MSC attractive for the treatment of osteoarthritis. Furthermore, since part of the paracrine effects of MSCs are attributed to extracellular vesicles (EVs), small membrane enclosed particles secreted by cells, EVs are currently being widely investigated for their potential therapeutic effects. Although MSCs have entered clinical cartilage treatments and EVs are used in in vivo efficacy studies, not much attention has been given to determine their potency and to the development of potency assays. This chapter provides considerations and suggestions for the development of potency assays for the use of MSCs and MSC-EVs for the treatment of cartilage defects and osteoarthritis.
Collapse
Affiliation(s)
- Lucienne A Vonk
- Department of Orthopaedics, University Medical Center Utrecht, Utrecht, The Netherlands.
| |
Collapse
|
11
|
Fiorentino MC, Cipolletta E, Filippucci E, Grassi W, Frontoni E, Moccia S. A deep-learning framework for metacarpal-head cartilage-thickness estimation in ultrasound rheumatological images. Comput Biol Med 2021; 141:105117. [PMID: 34968861 DOI: 10.1016/j.compbiomed.2021.105117] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 11/30/2021] [Accepted: 12/02/2021] [Indexed: 12/18/2022]
Abstract
OBJECTIVE Rheumatoid arthritis (RA) is a chronic disease characterized by erosive symmetrical polyarthritis. Bone and cartilage are the main joint targets of this disease. Cartilage damage is one of the most relevant determinants of physical disability in RA patients. Cartilage damage is nowadays assessed by clinicians, which manually measure cartilage thickness in ultrasound (US) imaging. This poses issues relevant to intra-and inter-observer variability. Relying on the acquisition of metacarpal-head US images from 38 subjects, this work addresses the problem of automatic cartilage-thickness measurement by designing a new deep-learning (DL) framework. METHODS The framework consists of a Convolutional Neural Network (CNN), responsible for regressing cartilage-interface distance fields, followed by a post-processing step to delineate the two cartilage interfaces from the predicted distance fields and compute the cartilage thickness. RESULTS Our framework achieved encouraging results with a mean absolute difference (ADF) of 0.032 (±0.026) mm against manual thickness annotation by an expert clinician. When evaluating the intra-observer variability, we obtained an ADF = 0.036 (±0.028) mm. CONCLUSION The proposed framework achieved an ADF against manual annotation that was comparable to the intra-observer variability, proving the potential of DL in the field. SIGNIFICANCE This work is the first to address the problem of automatic cartilage-thickness estimation in US rheumatological images with DL, paving the way for future research in the field. From a clinical perspective, the proposed framework proved to be a valuable tool to support the clinical routine increasing the reproducibility of cartilage thickness measurements.
Collapse
|
12
|
Cipolletta E, Mandl P, Di Matteo A, Mirza RM, Passarini G, Grassi W, Filippucci E. Sonographic assessment of cartilage damage at metacarpal head in rheumatoid arthritis: qualitative versus quantitative methods. Rheumatology (Oxford) 2021; 61:1018-1025. [PMID: 34097001 DOI: 10.1093/rheumatology/keab472] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 05/25/2021] [Indexed: 11/12/2022] Open
Abstract
OBJECTIVE To test the validity of the Outcome Measure in Rheumatology (OMERACT) semiquantitative score by comparing with a quantitative method in the sonographic (US) assessment of hyaline cartilage at the metacarpal head (MH) in patients with rheumatoid arthritis (RA) and healthy subjects (HS). METHODS The hyaline cartilage from second to fifth MHs of both hands was scanned. Hyaline cartilage was scored semiquantitatively and quantitatively (by measuring cartilage thickness and comparing with reference values). In RA patients, radiographic joint space narrowing (JSN) was scored on the same joints using the Simple Erosion Narrowing Score (SENS). RESULTS Four-hundred and eight MHs in 51 RA patients and 320 MHs in 40 HS were evaluated. The OMERACT semiquantitative score was quicker to perform than the quantitative method (6.0 ± 0.5 vs 8.0 ± 1.5 min, p< 0.01). A significant correlation between the US scores (R = 0.68), and between the US scores and the JSN-SENS (R = 0.61 and R = 0.63, for semiquantitative and quantitative method, respectively) was found. The frequency of cartilage abnormalities was similar between the two US methods in RA patients (58.8% and 51.0% RA patients for semiquantitative and quantitative method, p= 0.46), while the former revealed more abnormalities in HS (27.5% and 7.5% of HS, p= 0.02). CONCLUSION The higher feasibility of the OMERACT semiquantitative score suggests its use as first-choice method in the evaluation of cartilage damage. However, despite its limits, the quantitative assessment of HC, providing patient-tailored information due to age- and sex-corrected cut-off values, may represent a valid supplement for optimizing the evaluation of cartilage damage in selected cases.
Collapse
Affiliation(s)
- Edoardo Cipolletta
- Rheumatology Unit, Polytechnic University of Marche, Jesi (Ancona), Italy
| | - Peter Mandl
- Division of Rheumatology, Medical University of Vienna, Vienna, Austria
| | - Andrea Di Matteo
- Rheumatology Unit, Polytechnic University of Marche, Jesi (Ancona), Italy
| | | | | | - Walter Grassi
- Rheumatology Unit, Polytechnic University of Marche, Jesi (Ancona), Italy
| | - Emilio Filippucci
- Rheumatology Unit, Polytechnic University of Marche, Jesi (Ancona), Italy
| |
Collapse
|
13
|
Weber CD, Hildebrand F, Lichte P. [Arthroscopically assisted transmalleolar internal fixation of a lateral osteochondral lesion of the talus]. Unfallchirurg 2021; 124:333-337. [PMID: 33599791 DOI: 10.1007/s00113-021-00958-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/20/2021] [Indexed: 11/30/2022]
Abstract
Osteochondral lesions (OCL) of the talus can be caused by isolated or recurrent traumatic events. The established surgical treatment techniques are predominantly based on defect coverage by stimulation of fibrous cartilage or transplantation of osteochondral tissue or chondrocytes. An alternative is the preservation of an intact autochthonous hyaline cartilage surface with reconstruction of the subchondral lamella and the natural joint congruence. This anatomical technique can be used for selected acute and chronic OCL and can frequently be carried out arthroscopically. This article presents the indications, contraindications, advantages and targets as well as the planning and execution of arthroscopically assisted transmalleolar internal fixation of a lateral OCL of the talus.
Collapse
Affiliation(s)
- Christian David Weber
- Klinik für Unfall- und Wiederherstellungschirurgie, Universitätsklinikum der RWTH Aachen, Pauwelsstr. 30, 52074, Aachen, Deutschland.
| | - Frank Hildebrand
- Klinik für Unfall- und Wiederherstellungschirurgie, Universitätsklinikum der RWTH Aachen, Pauwelsstr. 30, 52074, Aachen, Deutschland
| | - Philipp Lichte
- Klinik für Unfall- und Wiederherstellungschirurgie, Universitätsklinikum der RWTH Aachen, Pauwelsstr. 30, 52074, Aachen, Deutschland
| |
Collapse
|
14
|
Yoshimatsu M, Ohnishi H, Zhao C, Hayashi Y, Kuwata F, Kaba S, Okuyama H, Kawai Y, Hiwatashi N, Kishimoto Y, Sakamoto T, Ikeya M, Omori K. In vivo regeneration of rat laryngeal cartilage with mesenchymal stem cells derived from human induced pluripotent stem cells via neural crest cells. Stem Cell Res 2021; 52:102233. [PMID: 33607469 DOI: 10.1016/j.scr.2021.102233] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 01/21/2021] [Accepted: 02/04/2021] [Indexed: 12/18/2022] Open
Abstract
The laryngotracheal cartilage is a cardinal framework for the maintenance of the airway for breathing, which occasionally requires reconstruction. Because hyaline cartilage has a poor intrinsic regenerative ability, various regenerative approaches have been attempted to regenerate laryngotracheal cartilage. The use of autologous mesenchymal stem cells (MSCs) for cartilage regeneration has been widely investigated. However, long-term culture may limit proliferative capacity. Human-induced pluripotent stem cell-derived MSCs (iMSCs) can circumvent this problem due to their unlimited proliferative capacity. This study aimed to investigate the efficacy of iMSCs in the regeneration of thyroid cartilage in immunodeficient rats. Herein, we induced iMSCs through neural crest cell intermediates. For the relevance to prospective future clinical application, induction was conducted under xeno-free/serum-free conditions. Then, clumps fabricated from an iMSC/extracellular matrix complex (C-iMSC) were transplanted into thyroid cartilage defects in immunodeficient rats. Histological examinations revealed cartilage-like regenerated tissue and human nuclear antigen (HNA)-positive surviving transplanted cells in the regenerated lesion. HNA-positive cells co-expressed SOX9, and type II collagen was identified around HNA-positive cells. These results indicated that the transplanted C-iMSCs promoted thyroid cartilage regeneration and some of the iMSCs differentiated into chondrogenic lineage cells. Induced MSCs may be a promising candidate cell therapy for human laryngotracheal reconstruction.
Collapse
Affiliation(s)
- Masayoshi Yoshimatsu
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
| | - Hiroe Ohnishi
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Chengzhu Zhao
- Department of Clinical Application, Center for iPS Cell Research and Application, Kyoto University, Kyoto, Japan
| | - Yasuyuki Hayashi
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Fumihiko Kuwata
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Shinji Kaba
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Hideaki Okuyama
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Yoshitaka Kawai
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Nao Hiwatashi
- Department of Otolaryngology, Kyoto-Katsura Hospital, Kyoto, Japan
| | - Yo Kishimoto
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
| | - Tatsunori Sakamoto
- Department of Otorhinolaryngology, Shimane University Faculty of Medicine, Shimane, Japan
| | - Makoto Ikeya
- Department of Clinical Application, Center for iPS Cell Research and Application, Kyoto University, Kyoto, Japan
| | - Koichi Omori
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| |
Collapse
|
15
|
Rogina A, Pušić M, Štefan L, Ivković A, Urlić I, Ivanković M, Ivanković H. Characterization of Chitosan-Based Scaffolds Seeded with Sheep Nasal Chondrocytes for Cartilage Tissue Engineering. Ann Biomed Eng 2021; 49:1572-1586. [PMID: 33409853 DOI: 10.1007/s10439-020-02712-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 12/14/2020] [Indexed: 11/25/2022]
Abstract
The treatment of cartilage defect remains a challenging issue in clinical practice. Chitosan-based materials have been recognized as a suitable microenvironment for chondrocyte adhesion, proliferation and differentiation forming articular cartilage. The use of nasal chondrocytes to culture articular cartilage on an appropriate scaffold emerged as a promising novel strategy for cartilage regeneration. Beside excellent properties, chitosan lacks in biological activity, such as RGD-sequences. In this work, we have prepared pure and protein-modified chitosan scaffolds of different deacetylation degree and molecular weight as platforms for the culture of sheep nasal chondrocytes. Fibronectin (FN) was chosen as an adhesive protein for the improvement of chitosan bioactivity. Prepared scaffolds were characterised in terms of microstructure, physical and biodegradation properties, while FN interactions with different chitosans were investigated through adsorption-desorption studies. The results indicated faster enzymatic degradation of chitosan scaffolds with lower deacetylation degree, while better FN interactions with material were achieved on chitosan with higher number of amine groups. Histological and immunohistochemical analysis of in vitro engineered cartilage grafts showed presence of hyaline cartilage produced by nasal chondrocytes.
Collapse
Affiliation(s)
- Anamarija Rogina
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, p.p.177, 10001, Zagreb, Croatia.
| | - Maja Pušić
- Faculty of Science, University of Zagreb, Horvatovac102a, 10001, Zagreb, Croatia.
| | - Lucija Štefan
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, p.p.177, 10001, Zagreb, Croatia
| | - Alan Ivković
- Department of Histology and Embryology, School of Medicine, University of Zagreb, Šalata 3, 10001, Zagreb, Croatia
- Department of Orthopaedic Surgery, University Hospital Sveti Duh, Sveti Duh 64, 10001, Zagreb, Croatia
- Department of Biotechnology, University of Rijeka, Radmile Matejčić 2, 51000, Rijeka, Croatia
- University of Applied Health Sciences, Mlinarska cesta 38, 10001, Zagreb, Croatia
| | - Inga Urlić
- Faculty of Science, University of Zagreb, Horvatovac102a, 10001, Zagreb, Croatia
| | - Marica Ivanković
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, p.p.177, 10001, Zagreb, Croatia
| | - Hrvoje Ivanković
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, p.p.177, 10001, Zagreb, Croatia
| |
Collapse
|
16
|
Sánchez-Pérez C, Fernández-Santos ME, Chana-Rodríguez F, Vaquero-Martín J, Crego-Vita D, Carbó Laso E, González de Torre I, Narbona-Cárceles J. In vitro chondral culture under compression and shear stimuli. From mesenchymal stem cells to hyaline cartilage. Rev Esp Cir Ortop Traumatol (Engl Ed) 2020; 64:380-387. [PMID: 32792287 DOI: 10.1016/j.recot.2020.06.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2019] [Revised: 04/29/2020] [Accepted: 06/14/2020] [Indexed: 11/30/2022] Open
Abstract
INTRODUCTION The in vitro creation of hyaline joint cartilage is a challenge since, to date, the ex vivo synthesis of a structured tissue with the same biomechanical and histological properties of the joint cartilage has not been achieved. To simulate the physiological conditions we have designed an in vitro culture system that reproduces joint movement. MATERIAL AND METHOD We have developed a cell culture bioreactor that prints a mechanical stimulus on an elastin matrix, in which mesenchymal stem cells (MSC) are embedded. The first phase of study corresponds to the development of a bioreactor for hyaline cartilage culture and the verification of cell viability in the elastin matrix in the absence of stimulus. The second phase of the study includes the MSC culture under mechanical stimulus and the analysis of the resulting tissue. RESULTS After culture under mechanical stimulation we did not obtain hyaline tissue due to lack of cellularity and matrix destructuring. CONCLUSION The stimulus pattern used has not been effective in generating hyaline cartilage, so other combinations should be explored in future research.
Collapse
Affiliation(s)
- C Sánchez-Pérez
- Servicio de Cirugía Ortopédica y Traumatología, Hospital General Universitario Gregorio Marañón, Madrid, España.
| | - M E Fernández-Santos
- Unidad de Producción Celular, Instituto de Investigación Sanitaria Gregorio Marañón, Hospital General Universitario Gregorio Marañón, Madrid, España
| | - F Chana-Rodríguez
- Servicio de Cirugía Ortopédica y Traumatología, Hospital General Universitario Gregorio Marañón, Madrid, España
| | - J Vaquero-Martín
- Servicio de Cirugía Ortopédica y Traumatología, Hospital General Universitario Gregorio Marañón, Madrid, España
| | - D Crego-Vita
- Servicio de Cirugía Ortopédica y Traumatología, Hospital Central de la Defensa Gómez Ulla, Madrid, España
| | - E Carbó Laso
- Servicio de Cirugía Ortopédica y Traumatología, Hospital General Universitario Gregorio Marañón, Madrid, España
| | | | - J Narbona-Cárceles
- Servicio de Cirugía Ortopédica y Traumatología, Hospital General Universitario Gregorio Marañón, Madrid, España
| |
Collapse
|
17
|
Komarraju A, Goldberg-Stein S, Pederson R, McCrum C, Chhabra A. Spectrum of common and uncommon causes of knee joint hyaline cartilage degeneration and their key imaging features. Eur J Radiol 2020; 129:109097. [PMID: 32534353 DOI: 10.1016/j.ejrad.2020.109097] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 04/12/2020] [Accepted: 05/27/2020] [Indexed: 12/25/2022]
Abstract
Hyaline cartilage lining the surfaces of diarthrodial joints is an important construct for transmission of load and to reduce friction between the bones. Normal wear and tear accounts for about 3-5 percent knee cartilage loss ever year in otherwise healthy people after the age of 30 years. Several conditions and diseases lead to premature cartilage degeneration. Standardized description of cartilage loss, detailed evaluation of the joint health and determining the underlying etiology of cartilage loss are important for effective reporting, multidisciplinary communications and patient management. In this article, the authors discuss normal and abnormal imaging appearances of the hyaline cartilage of knee with focus on using controlled terminology and MRI classifications. The reader will benefit and learn key MR imaging features of a spectrum of common and uncommon conditions and diseases affecting the knee cartilage, such as trauma, secondary injury associated with meniscus and ligament injury related instability, arthritis, ischemia, idiopathic, and hereditary conditions including Matrix metalloproteinase-2 (MMP-2) mutations and mucopolysaccharidosis type IX disease with illustrative case examples.
Collapse
|
18
|
Plečko M, Bohaček I, Duvančić T, Delimar D. The neoacetabulum in developmental dysplasia of the hip is covered with hyaline cartilage. Med Hypotheses 2020; 142:109820. [PMID: 32442678 DOI: 10.1016/j.mehy.2020.109820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 04/20/2020] [Accepted: 05/05/2020] [Indexed: 11/18/2022]
Abstract
The lack of adequate mechanical stimulation and appropriate contact between acetabulum and femoral head results with developmental dysplasia of the hip (DDH). In DDH, hip joint forms normally during the organogenesis, but deforms during the fetal development. Acetabulum remains comparable in width with normal acetabulum, but has increased length and decreased depth, resulting in a poor coverage of the femoral head. In cases of severe hip subluxation and luxation due to DDH, the femoral head articulates with the external side of the iliac bone, forming a neoacetabulum in the position that was genetically predetermined to become bony tissue. A neoacetabulum is therefore formed under intermittent mechanical pressure, but never has the depth of a physiological acetabulum due to different forces at this new location. Over time, the depth of the neoacetabulum increases, and a crest is formed that obstructs reposition of the femoral head into the anatomic acetabulum. We hypothesize that the neoacetabulum on the iliac bone in DDH patients is formed of hyaline cartilage, despite the lack of genetic predisposition for hyaline cartilage formation in this area. We assume that as the femoral head migrates during development in such patients, joint capsular tissue interposes between the external side of the iliac bone and the femoral head, and a cartilaginous metaplasia of the capsule follows. This results in elongation of the acetabular cartilage in the same direction as the femoral head migrated. This assumption is based on the finding that in patients with hip luxation such interposed joint capsule showed signs of cartilaginous transformation. Furthermore, in the inner part of such joint capsules, proteoglycan production was notably higher than that of other non-cartilaginous tissue. Also, high expression of cartilaginous genes, which are usually not expressed in this tissue, was observed. Confirmation of this hypothesis would put a new perspective on the pathogenesis of DDH and could lead to better management or even prevention of this condition.
Collapse
Affiliation(s)
- Mihovil Plečko
- Department of Orthopaedic Surgery, University Hospital Centre Zagreb, Zagreb, Croatia
| | - Ivan Bohaček
- Department of Orthopaedic Surgery, University Hospital Centre Zagreb, Zagreb, Croatia; Department of Orthopaedic Surgery, School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Tea Duvančić
- Department of Orthopaedic Surgery, School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Domagoj Delimar
- Department of Orthopaedic Surgery, University Hospital Centre Zagreb, Zagreb, Croatia; Department of Orthopaedic Surgery, School of Medicine, University of Zagreb, Zagreb, Croatia.
| |
Collapse
|
19
|
Bonhome-Espinosa AB, Campos F, Durand-Herrera D, Sánchez-López JD, Schaub S, Durán JDG, Lopez-Lopez MT, Carriel V. In vitro characterization of a novel magnetic fibrin-agarose hydrogel for cartilage tissue engineering. J Mech Behav Biomed Mater 2020; 104:103619. [PMID: 32174386 DOI: 10.1016/j.jmbbm.2020.103619] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 01/04/2020] [Accepted: 01/04/2020] [Indexed: 01/24/2023]
Abstract
The encapsulation of cells into biopolymer matrices enables the preparation of engineered substitute tissues. Here we report the generation of novel 3D magnetic biomaterials by encapsulation of magnetic nanoparticles and human hyaline chondrocytes within fibrin-agarose hydrogels, with potential use as articular hyaline cartilage-like tissues. By rheological measurements we observed that, (i) the incorporation of magnetic nanoparticles resulted in increased values of the storage and loss moduli for the different times of cell culture; and (ii) the incorporation of human hyaline chondrocytes into nonmagnetic and magnetic fibrin-agarose biomaterials produced a control of their swelling capacity in comparison with acellular nonmagnetic and magnetic fibrin-agarose biomaterials. Interestingly, the in vitro viability and proliferation results showed that the inclusion of magnetic nanoparticles did not affect the cytocompatibility of the biomaterials. What is more, immunohistochemistry showed that the inclusion of magnetic nanoparticles did not negatively affect the expression of type II collagen of the human hyaline chondrocytes. Summarizing, our results suggest that the generation of engineered hyaline cartilage-like tissues by using magnetic fibrin-agarose hydrogels is feasible. The resulting artificial tissues combine a stronger and stable mechanical response, with promising in vitro cytocompatibility. Further research would be required to elucidate if for longer culture times additional features typical of the extracellular matrix of cartilage could be expressed by human hyaline chondrocytes within magnetic fibrin-agarose hydrogels.
Collapse
Affiliation(s)
- Ana Belén Bonhome-Espinosa
- Department of Applied Physics, University of Granada, Faculty of Science, Campus de Fuentenueva, 18071, Granada, Spain; Instituto de Investigación Biosanitaria Ibs.GRANADA, Granada, Spain
| | - Fernando Campos
- Instituto de Investigación Biosanitaria Ibs.GRANADA, Granada, Spain; Department of Histology & Tissue Engineering Group, Faculty of Medicine, University of Granada, Spain
| | - Daniel Durand-Herrera
- Instituto de Investigación Biosanitaria Ibs.GRANADA, Granada, Spain; Department of Histology & Tissue Engineering Group, Faculty of Medicine, University of Granada, Spain
| | | | | | - Juan D G Durán
- Department of Applied Physics, University of Granada, Faculty of Science, Campus de Fuentenueva, 18071, Granada, Spain; Instituto de Investigación Biosanitaria Ibs.GRANADA, Granada, Spain
| | - Modesto T Lopez-Lopez
- Department of Applied Physics, University of Granada, Faculty of Science, Campus de Fuentenueva, 18071, Granada, Spain; Instituto de Investigación Biosanitaria Ibs.GRANADA, Granada, Spain.
| | - Víctor Carriel
- Instituto de Investigación Biosanitaria Ibs.GRANADA, Granada, Spain; Department of Histology & Tissue Engineering Group, Faculty of Medicine, University of Granada, Spain
| |
Collapse
|
20
|
Elhence P, Sinha A. Hyaline cartilage at porta hepatis in extrahepatic biliary atresia: metaplasia or choristoma. Sudan J Paediatr 2020; 20:73-76. [PMID: 32528205 DOI: 10.24911/sjp.106-1518980907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
We report a case of a 5-month-old child who presented with the features of obstructive jaundice, anaemia and had no associated congenital anomalies. The child was suspected to have biliary atresia on hepatobiliary iminodiacetic acid (HIDA) scan and underwent Kasai portoenterostomy. Microscopic examination of the atretic gallbladder revealed islands of mature hyaline cartilage, lymphoid aggregates and fibrosis. There was an abrupt transition between the cartilage and the adjacent stroma. Only rare case reports have documented this finding with hypothesis ranging from metaplasia occurring secondary to the associated chronic inflammation or whether it is a choristoma. These cases need to be documented to elucidate the pathways of occurrence and may lead to have a better and detailed understanding of the disease process.
Collapse
Affiliation(s)
- Poonam Elhence
- Department of Pathology, All India Institute of Medical Sciences, Jodhpur, India
| | - Arvind Sinha
- Department of Pediatric Surgery, All India Institute of Medical Sciences, Jodhpur, India
| |
Collapse
|
21
|
Alibegović A, Blagus R, Martinez IZ. Safranin O without fast green is the best staining method for testing the degradation of macromolecules in a cartilage extracellular matrix for the determination of the postmortem interval. Forensic Sci Med Pathol 2020; 16:252-8. [PMID: 31820320 DOI: 10.1007/s12024-019-00208-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/11/2019] [Indexed: 10/25/2022]
Abstract
Methods for the determination of the postmortem interval (PMI) include methods that monitor the postmortem changes of cells and molecules in different tissues. The rate of pathological degradation of macromolecules in the extracellular matrix (ECM) of hyaline cartilage could be verified by assessing the intensity of collagen and proteoglycan (PG) staining. In the presented in vitro pilot study, this methodology was used for the first time to determine PMI. The osteochondral samples of three donors were stored at 11 °C and 35 °C and analyzed on day 1, day 12, and day 36 postmortem. The intensity of staining using Masson's trichrome and Sirius red for collagen, and Alcian blue and Safranin O dyes for PG was estimated ten times according to the modified Bern grading scale. Statistical analysis showed that the Safranin O without Fast green method is the most appropriate (raters agreement 0.5541) for up to 36 days postmortem, and that the influence of time is more important (p = 0.023) than the influence of temperature (p = 0.061) on the degradation of the ECM macromolecules. The described method, which is simple and can be performed in any histological laboratory, should be verified in corpore conditions, on a large number of donors, and using an objective method for assessing the intensity of cartilage macromolecule staining for PMI determination.
Collapse
|
22
|
Abstract
INTRODUCTION Cartilage regeneration and restoration is a major topic in orthopedic research as cartilaginous degeneration and damage is associated with osteoarthritis and joint destruction. This systematic review aims to summarize current research strategies in cartilage regeneration research. MATERIALS AND METHODS A Pubmed search for models investigating single-site cartilage defects as well as chondrogenesis was conducted and articles were evaluated for content by title and abstract. Finally, only manuscripts were included, which report new models or approaches of cartilage regeneration. RESULTS The search resulted in 2217 studies, 200 of which were eligible for inclusion in this review. The identified manuscripts consisted of a large spectrum of research approaches spanning from cell culture to tissue engineering and transplantation as well as sophisticated computational modeling. CONCLUSIONS In the past three decades, knowledge about articular cartilage and its defects has multiplied in clinical and experimental settings and the respective body of research literature has grown significantly. However, current strategies for articular cartilage repair have not yet succeeded to replicate the structure and function of innate articular cartilage, which makes it even more important to understand the current strategies and their impact. Therefore, the purpose of this review was to globally summarize experimental strategies investigating cartilage regeneration in vitro as well as in vivo. This will allow for better referencing when designing new models or strategies and potentially improve research translation from bench to bedside.
Collapse
Affiliation(s)
- Sebastian G Walter
- Clinic for Orthopedics and Trauma Surgery, University Hospital Bonn, Sigmund-Freud-Str. 25, 53105, Bonn, Germany
| | - Robert Ossendorff
- Clinic for Orthopedics and Trauma Surgery, University Hospital Bonn, Sigmund-Freud-Str. 25, 53105, Bonn, Germany
| | - Frank A Schildberg
- Clinic for Orthopedics and Trauma Surgery, University Hospital Bonn, Sigmund-Freud-Str. 25, 53105, Bonn, Germany.
| |
Collapse
|
23
|
Vahedi P, Jarolmasjed S, Shafaei H, Roshangar L, Soleimani Rad J, Ahmadian E. In vivo articular cartilage regeneration through infrapatellar adipose tissue derived stem cell in nanofiber polycaprolactone scaffold. Tissue Cell 2019; 57:49-56. [PMID: 30947963 DOI: 10.1016/j.tice.2019.02.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 01/21/2019] [Accepted: 02/05/2019] [Indexed: 12/17/2022]
Abstract
In this study, we report the development of a nanofiber polycaprolactone scaffold that can act as a stem cell carrier to induce chondrogenesis and promote cartilage repair in vivo. Infrapatellar fat pads were obtained from sheep knee and the stem cells were isolated and characterized by flow cytometry. Defects were created in sheep knee, two defects received adipose tissue derived stem cells (ASCs)-polycaprolactone construct, second group received polycaprolactone (PCL), the third group was chosen as the ASCs group and the fourth group was control group. Morphological evaluation showed that defects treated with ASCs-scaffold constructs were completely filled with cartilage-like tissue, while other groups revealed the formation of a thin layer of cartilage-like tissue in the defects. Real-Time RT-PCR showed the increase in collagen type 2 mRNA levels, aggrecan and Sox9 in ASCs/PCL groups in comparison with the other groups. Immunofluorescence and toluidine blue staining results showed the protein expression of collagen type 2 and formation of round and polygonal clusters of chondrocytes in ASCS/PCL group. According to our results nanofiber polycaprolactone promoted the chondrogenesis of infrapatellar adipose tissue derived stem cells in vivo and could offer significant promise in the biological functionality of stem cell tissue engineering in clinical practice.
Collapse
|
24
|
Abstract
BACKGROUND Cartilage is an avascular, alymphatic and non-innervated tissue with limited intrinsic repair potential. The high prevalence of cartilage defects and their tremendous clinical importance are a challenge for all treating physicians. AIM This article provides the reader with an overview about current cartilage treatment options and their clinical outcome. METHODS Microfracture is still considered the gold standard in the treatment of small cartilage lesions. Small osteochondral defects can be effectively treated with the autologous osteochondral transplantation system. Larger cartilage defects are successfully treated by autologous membrane-induced chondrogenesis (AMIC) or by membrane-assisted autologous chondrocyte implantation (MACI). CONCLUSION Despite limitations of current cartilage repair strategies, such procedures can result in short- and mid-term clinical improvement of the patients. Further developments and clinical studies are necessary to improve the long-term outcome following cartilage repair.
Collapse
Affiliation(s)
- H Schenker
- Klinik für Orthopädie, Uniklinik RWTH Aachen, Pauwelsstraße 30, 52074, Aachen, Deutschland
| | - M Wild
- Klinik für Orthopädie, Unfall- und Handchirurgie, Klinikum Darmstadt, Grafenstraße 9, 64283, Darmstadt, Deutschland
| | - B Rath
- Klinik für Orthopädie, Uniklinik RWTH Aachen, Pauwelsstraße 30, 52074, Aachen, Deutschland
| | - M Tingart
- Klinik für Orthopädie, Uniklinik RWTH Aachen, Pauwelsstraße 30, 52074, Aachen, Deutschland
| | - A Driessen
- Klinik für Orthopädie, Uniklinik RWTH Aachen, Pauwelsstraße 30, 52074, Aachen, Deutschland
| | - V Quack
- Klinik für Orthopädie, Uniklinik RWTH Aachen, Pauwelsstraße 30, 52074, Aachen, Deutschland
| | - M Betsch
- Klinik für Orthopädie, Uniklinik RWTH Aachen, Pauwelsstraße 30, 52074, Aachen, Deutschland.
| |
Collapse
|
25
|
Ruvinov E, Tavor Re'em T, Witte F, Cohen S. Articular cartilage regeneration using acellular bioactive affinity-binding alginate hydrogel: A 6-month study in a mini-pig model of osteochondral defects. J Orthop Translat 2018; 16:40-52. [PMID: 30723680 PMCID: PMC6350049 DOI: 10.1016/j.jot.2018.08.003] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Revised: 08/08/2018] [Accepted: 08/15/2018] [Indexed: 12/20/2022] Open
Abstract
Background Despite intensive research, regeneration of articular cartilage largely remains an unresolved medical concern as the clinically available modalities still suffer from long-term inconsistent data, relatively high failure rates and high prices of more promising approaches, such as cell therapy. In the present study, we aimed to evaluate the feasibility and long-term efficacy of a bilayered injectable acellular affinity-binding alginate hydrogel in a large animal model of osteochondral defects. Methods The affinity-binding alginate hydrogel is designed for presentation and slow release of chondrogenic and osteogenic inducers (transforming growth factor-β1 and bone morphogenic protein 4, respectively) in two distinct and separate hydrogel layers. The hydrogel was injected into the osteochondral defects created in the femoral medial condyle in mini-pigs, and various outcomes were evaluated after 6 months. Results Macroscopical and histological assessment of the defects treated with growth factor affinity-bound hydrogel showed effective reconstruction of articular cartilage layer, with major features of hyaline tissue, such as a glossy surface and cellular organisation, associated with marked deposition of proteoglycans and type II collagen. Microcomputed tomography showed incomplete bone formation in both treatment groups, which was nevertheless augmented by the presence of affinity-bound growth factors. Importantly, the physical nature of the applied hydrogel ensured its shear resistance, seamless integration and topographical matching to the surroundings and opposing articulating surface. Conclusions The treatment with acellular injectable growth factor-loaded affinity-binding alginate hydrogel resulted in effective tissue restoration with major hallmarks of hyaline cartilage, shown in large animal model after 6-month follow-up. The translational potential of this article This proof-of-concept study in a clinically relevant large animal model showed promising potential of an injectable acellular growth factor-loaded affinity-binding alginate hydrogel for effective repair and regeneration of articular hyaline cartilage, representing a strong candidate for future clinical development.
Collapse
Affiliation(s)
- Emil Ruvinov
- Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Tali Tavor Re'em
- Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Frank Witte
- Julius Wolff Institute and Center for Musculoskeletal Surgery, Berlin-Brandenburg Center for Regenerative Therapies, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Smadar Cohen
- Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben-Gurion University of the Negev, Beer Sheva, Israel.,Regenerative Medicine and Stem Cell (RMSC) Research Center, Ben-Gurion University of the Negev, Beer Sheva, Israel.,The Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer Sheva, Israel
| |
Collapse
|
26
|
Ali TS, Thibbotuwawa N, Gu Y, Momot KI. MRI magic-angle effect in femorotibial cartilages of the red kangaroo. Magn Reson Imaging 2017; 43:66-73. [PMID: 28716681 DOI: 10.1016/j.mri.2017.07.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Accepted: 07/13/2017] [Indexed: 01/27/2023]
Abstract
OBJECTIVE Kangaroo knee cartilages are robust tissues that can support knee flexion and endure high levels of compressive stress. This study aimed to develop a detailed understanding of the collagen architecture in kangaroo knee cartilages and thus obtain insights into the biophysical basis of their function. DESIGN Cylindrical/square plugs from femoral and tibial hyaline cartilage and tibial fibrocartilage were excised from the knees of three adult red kangaroos. Multi-slice, multi-echo MR images were acquired at the sample orientations 0° and 55° ("magic angle") with respect to the static magnetic field. Maps of the transverse relaxation rate constant (R2) and depth profiles of R2 and its anisotropic component (R2A) were constructed from the data. RESULTS The R2A profiles confirmed the classic three-zone organisation of all cartilage samples. Femoral hyaline cartilage possessed a well-developed, thick superficial zone. Tibial hyaline cartilage possessed a very thick radial zone (80% relative thickness) that exhibited large R2A values consistent with highly ordered collagen. The R2A profile of tibial fibrocartilage exhibited a unique region near the bone (bottom 5-10%) consistent with elevated proteoglycan content ("attachment sub-zone"). CONCLUSIONS Our observations suggest that the well-developed superficial zone of femoral hyaline cartilage is suitable for supporting knee flexion; the thick and well-aligned radial zone of tibial hyaline cartilage is adapted to endure high compressive stress; while the innermost part of the radial zone of tibial fibrocartilage may facilitate anchoring of the collagen fibres to withstand high shear deformation. These findings may inspire new designs for cartilage tissue engineering.
Collapse
Affiliation(s)
- Tonima S Ali
- Queensland University of Technology (QUT), Brisbane, Queensland, Australia; Institute of Health and Biomedical Innovation, Kelvin Grove, QLD 4059, Australia
| | - Namal Thibbotuwawa
- Queensland University of Technology (QUT), Brisbane, Queensland, Australia
| | - YuanTong Gu
- Queensland University of Technology (QUT), Brisbane, Queensland, Australia
| | - Konstantin I Momot
- Queensland University of Technology (QUT), Brisbane, Queensland, Australia; Institute of Health and Biomedical Innovation, Kelvin Grove, QLD 4059, Australia.
| |
Collapse
|
27
|
Abstract
There is an increasing need for articular cartilage restoration procedures. Hyaline cartilage lacks intrinsic healing capacity. Persistent osteochondral defects can lead to early and rapid degenerative changes. Microfracture and autologous chondrocyte implantation provide reasonable outcomes for smaller defects without bone loss. However, these techniques have limited effectiveness for lesions greater than 4 cm2 or with significant bony involvement. Ostochondral allografts provide an option for these lesions. This article reviews osteochondral allografts for articular defects. Emerging options provide different approaches to difficult cartilage defects. We discuss current screening, procurement, and storage methods, surgical techniques, outcomes, and bacterial/viral transmission.
Collapse
Affiliation(s)
- Frank B Wydra
- Department of Orthopedics, University of Colorado School of Medicine, 12631 East 17th Avenue, Room 4501 B202, Aurora, CO 80045, USA
| | - Philip J York
- Department of Orthopedics, University of Colorado School of Medicine, 12631 East 17th Avenue, Room 4501 B202, Aurora, CO 80045, USA
| | - Armando F Vidal
- Department of Orthopedics, University of Colorado School of Medicine, 12631 East 17th Avenue, Room 4501 B202, Aurora, CO 80045, USA.
| |
Collapse
|
28
|
Hubert J, Hawellek T, Hischke S, Bertrand J, Krause M, Püschel K, Rüther W, Niemeier A. Hyaline cartilage calcification of the first metatarsophalangeal joint is associated with osteoarthritis but independent of age and BMI. BMC Musculoskelet Disord 2016; 17:474. [PMID: 27842586 PMCID: PMC5109667 DOI: 10.1186/s12891-016-1324-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Accepted: 11/01/2016] [Indexed: 01/09/2023] Open
Abstract
Background Hyaline cartilage calcification (CC) is associated with osteoarthritis (OA) in hip and knee joints. The first metatarsophalangeal joint (1stMTPJ) is frequently affected by OA, but it is unclear if CC occurs in the 1stMTPJ. The aim of the present study was to analyze the prevalence of CC of the 1stMTPJ in the general population by high-resolution digital contact radiography (DCR) and to determine its association with histological OA severity, age and body mass index (BMI). Methods 168 metatarsal heads of 84 donors (n = 47 male, n = 37 female; mean age 62.73 years, SD ±18.8, range 20–93) were analyzed by DCR for the presence of CC. Histological OA grade (hOA) by OARSI was analyzed in the central load-bearing zone of the first metatarsal head (1st MH). Structural equation modeling (SEM) was performed to analyze the interrelationship between CC, hOA, age and BMI. Results The prevalence of CC of 1stMH was 48.8 % (41/84) (95 %-CI [37.7 %, 60.0 %]), independent of the affected side (p = 0.42), gender (p = 0.41) and BMI (p = 0.51). The mean amount of CC of one MH correlated significantly with that of the contralateral side (rs = 0.4, 95 %-CI [0.26, 0.52], p < 0.001). The mean amount of CC (in % of total cartilage area) of the MH correlated significantly with the severity of hOA (rs = 0.51, 95 %-CI [0.32, 0.65], p < 0.001). SEM revealed significant associations between CC and hOA (r = 0.74, p < 0.001) and between hOA and age (β = 0.62, p = 0.001), but not between CC and age (p = 0.15). There was no significant influence of BMI on either CC (p = 0.37) or hOA (p = 0.16). Conclusion The observation that CC of the 1stMH is significantly associated with the severity of OA but independent of age and BMI, suggests an intimate relationship between CC and the pathogenesis of OA, the exact nature of which will have to be explored by future studies. Electronic supplementary material The online version of this article (doi:10.1186/s12891-016-1324-0) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Jan Hubert
- Department of Orthopaedics, University Medical Center Hamburg-Eppendorf, Martinistraße 52, Hamburg, 20246, Germany.
| | - Thelonius Hawellek
- Department of Orthopaedics, University Medical Center Hamburg-Eppendorf, Martinistraße 52, Hamburg, 20246, Germany.
| | - Sandra Hischke
- Department of Medical Biometry and Epidemiology, University Medical Center Hamburg-Eppendorf, Martinistraße 52, Hamburg, 20246, Germany
| | - Jessica Bertrand
- Institute of Experimental Musculoskeletal Medicine, University Hospital Münster, Domagkstrasse 3, Münster, 48149, Germany.,Department of Orthopaedic Surgery, Otto-von-Guericke University Magdeburg, Leipziger Str. 44, Magdeburg, 39120, Germany
| | - Matthias Krause
- Department of Osteology and Biomechanics, University Medical Center Hamburg-Eppendorf, Lottestraße 59, Hamburg, 22529, Germany
| | - Klaus Püschel
- Department of Legal Medicine, University Medical Center Hamburg-Eppendorf, Martinistraße 52, Hamburg, 20246, Germany
| | - Wolfgang Rüther
- Department of Orthopaedics, University Medical Center Hamburg-Eppendorf, Martinistraße 52, Hamburg, 20246, Germany
| | - Andreas Niemeier
- Department of Orthopaedics, University Medical Center Hamburg-Eppendorf, Martinistraße 52, Hamburg, 20246, Germany
| |
Collapse
|
29
|
Tomatsu S, Montaño AM, Oikawa H, Dung VC, Hashimoto A, Oguma T, Gutiérrez ML, Takahashi T, Shimada T, Orii T, Sly WS. Enzyme replacement therapy in newborn mucopolysaccharidosis IVA mice: early treatment rescues bone lesions? Mol Genet Metab 2015; 114:195-202. [PMID: 24953405 PMCID: PMC4256128 DOI: 10.1016/j.ymgme.2014.05.013] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2014] [Revised: 05/27/2014] [Accepted: 05/27/2014] [Indexed: 02/02/2023]
Abstract
We treated mucopolysaccharidosis IVA (MPS IVA) mice to assess the effects of long-term enzyme replacement therapy (ERT) initiated at birth, since adult mice treated by ERT showed little improvement in bone pathology [1]. To conduct ERT in newborn mice, we used recombinant human N-acetylgalactosamine-6-sulfate sulfatase (GALNS) produced in a CHO cell line. First, to observe the tissue distribution pattern, a dose of 250units/g body weight was administered intravenously in MPS IVA mice at day 2 or 3. The infused enzyme was primarily recovered in the liver and spleen, with detectable activity in the bone and brain. Second, newborn ERT was conducted after a tissue distribution study. The first injection of newborn ERT was performed intravenously, the second to fourth weekly injections were intraperitoneal, and the remaining injections from 5th to 14th weeks were intravenous into the tail vein. MPS IVA mice treated with GALNS showed clearance of lysosomal storage in the liver and spleen, and sinus lining cells in bone marrow. The column structure of the growth plate was organized better than that in adult mice treated with ERT; however, hyaline and fibrous cartilage cells in the femur, spine, ligaments, discs, synovium, and periosteum still had storage materials to some extent. Heart valves were refractory to the treatment. Levels of serum keratan sulfate were kept normal in newborn ERT mice. In conclusion, the enzyme, which enters the cartilage before the cartilage cell layer becomes mature, prevents disorganization of column structure. Early treatment from birth leads to partial remission of bone pathology in MPS IVA mice.
Collapse
Affiliation(s)
- Shunji Tomatsu
- Nemours/Alfred I. duPont Hospital for Children, Wilmington, DE, USA.
| | - Adriana M Montaño
- Department of Pediatrics, Saint Louis University Doisy Research Center, St. Louis, MO, USA; Department of Biochemistry and Molecular Biology, Saint Louis University School of Medicine, St. Louis, MO, USA
| | - Hirotaka Oikawa
- Suzuka University of Medical Science, School of Pharmacy, Japan
| | - Vu Chi Dung
- Department of Endocrinology, Metabolism & Genetics, Vietnam National Hospital of Pediatrics, Hanoi, Viet Nam
| | | | | | - Monica L Gutiérrez
- Department of Pediatrics, Saint Louis University Doisy Research Center, St. Louis, MO, USA
| | - Tatsuo Takahashi
- Department of Clinical Pharmacy, Faculty of Pharmaceutical Sciences, Hokuriku University, Kanazawa, Japan
| | - Tsutomu Shimada
- Nemours/Alfred I. duPont Hospital for Children, Wilmington, DE, USA
| | - Tadao Orii
- Department of Pediatrics, Gifu University, School of Medicine, Gifu, Japan
| | - William S Sly
- Department of Biochemistry and Molecular Biology, Saint Louis University School of Medicine, St. Louis, MO, USA
| |
Collapse
|
30
|
Kim YS. The importance of a conchal bowl element in the fabrication of a three-dimensional framework in total auricular reconstruction. Arch Plast Surg 2013; 40:192-7. [PMID: 23730592 DOI: 10.5999/aps.2013.40.3.192] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2012] [Revised: 03/09/2013] [Accepted: 03/27/2013] [Indexed: 11/22/2022] Open
Abstract
Background To construct a sophisticated three-dimensional framework, numerous modifications have been reported in the literature. However, most surgeons have paid little attention to the anatomical configuration of the concha and more to its deepness and hollowness, leading to unsatisfactory outcomes. Methods For a configuration of the concha that is definitely anatomical, the author further developed and employed the conchal bowl element, which has been used by several surgeons although the results have not been published elsewhere. The author constructed the conchal bowl element in one of three patterns according to the amount of available cartilages: one block, two-pieces, or a cymba bowl element only. A total of 20 patients underwent auricular reconstruction using a costal cartilage framework between 2009 and 2012. The 8 earliest reconstructions were performed without a conchal bowl element and the latter 12 with a conchal bowl element. The patients were followed up for more than 1 year. The aesthetic results were scored by evaluating characteristics involving the stability of the crus helicis, the conchal definition, and the smoothness of the helical curve. Results The ears reconstructed early without a conchal bowl element showed a shallow and one or two incompletely separated concha with an obliterated cymba conchal space. They also did not have a realistic or smooth curve of the helix because of an unstable crus helicis. However, ears reconstructed later with the concha bowl element showed a definite crus helicis, deep cymba conchal space, and smooth helical curve. Conclusions The construction of the conchal bowl element is simple, not time-consuming procedure. It is suggested that the conchal bowl element must be constructed and attached to the main framework for natural configuration of the reconstructed ear.
Collapse
|