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Sengupta A, Padhan DK, Ganguly A, Sen M. Ccn6 Is Required for Mitochondrial Integrity and Skeletal Muscle Function in Zebrafish. Front Cell Dev Biol 2021; 9:627409. [PMID: 33644064 PMCID: PMC7905066 DOI: 10.3389/fcell.2021.627409] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 01/05/2021] [Indexed: 11/21/2022] Open
Abstract
Mutations in the CCN6 (WISP3) gene are linked with a debilitating musculoskeletal disorder, termed progressive pseudorheumatoid dysplasia (PPRD). Yet, the functional significance of CCN6 in the musculoskeletal system remains unclear. Using zebrafish as a model organism, we demonstrated that zebrafish Ccn6 is present partly as a component of mitochondrial respiratory complexes in the skeletal muscle of zebrafish. Morpholino-mediated depletion of Ccn6 in the skeletal muscle leads to a significant reduction in mitochondrial respiratory complex assembly and activity, which correlates with loss of muscle mitochondrial abundance. These mitochondrial deficiencies are associated with notable architectural and functional anomalies in the zebrafish muscle. Taken together, our results indicate that Ccn6-mediated regulation of mitochondrial respiratory complex assembly/activity and mitochondrial integrity is important for the maintenance of skeletal muscle structure and function in zebrafish. Furthermore, this study suggests that defects related to mitochondrial respiratory complex assembly/activity and integrity could be an underlying cause of muscle weakness and a failed musculoskeletal system in PPRD.
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Affiliation(s)
- Archya Sengupta
- Division of Cancer Biology & Inflammatory Disorder, CSIR-Indian Institute of Chemical Biology, Kolkata, India
| | - Deepesh Kumar Padhan
- Division of Cancer Biology & Inflammatory Disorder, CSIR-Indian Institute of Chemical Biology, Kolkata, India
| | - Ananya Ganguly
- Division of Cancer Biology & Inflammatory Disorder, CSIR-Indian Institute of Chemical Biology, Kolkata, India
| | - Malini Sen
- Division of Cancer Biology & Inflammatory Disorder, CSIR-Indian Institute of Chemical Biology, Kolkata, India
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Lin LJ, Ge YM, Tian Y, Liu N, Luo XH, Xue YT, Xue YZB, Wen CY, Tang B. Multi-scale mechanical investigation of articular cartilage suffered progressive pseudorheumatoid dysplasia. Clin Biomech (Bristol, Avon) 2020; 79:104947. [PMID: 31959394 DOI: 10.1016/j.clinbiomech.2019.12.029] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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: 02/17/2019] [Revised: 11/16/2019] [Accepted: 12/30/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND Progressive pseudorheumatoid dysplasia is a rare skeletal dysplasia mainly caused by abnormal autosomal recessive inheritance. Although the main function of cartilage is mechanical support and the characteristics of this disease is the degradation of AC, previous studies on it had been mainly focused on clinical and genetic aspects and the mechanical behavior of the cartilage affected by PPRD is still ambiguous. In this study, we investigate the mechanics and structure of the cartilage suffered disease at multi-scale, from individual chondrocytes to the bulk-scale tissue. METHODS Depth-sensing indenter were employed to investigate the mechanics of cartilage; we performed atomic force microscope nanoindentation to investigate the cell mechanics and scanning electron microscopy were used to explore the structure feature and chemical composition. FINDINGS The elastic modulus of chondrocytes harvested from cartilage suffered from progressive pseudorheumatoid dysplasia is significantly higher than from normal cartilage, same trend were also found in tissue level. Moreover, denser collagen meshwork and matrix calcification were also observed. INTERPRETATION The elastic modulus of cartilage should closely related to its denser structure and the calcification, and may potentially be an indicator for clinical diagnosis. The stiffening of chondrocytes during PPRD progression should play a rather important role in its pathogenesis.
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Affiliation(s)
- L J Lin
- Department of Orthopedics, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Y M Ge
- Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, China
| | - Y Tian
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, China
| | - N Liu
- Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, China
| | - X H Luo
- Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, China
| | - Y T Xue
- Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, China
| | - Y Z B Xue
- Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, China
| | - C Y Wen
- Interdisciplinary Division of Biomedical Engineering, Hong Kong Polytechnic University, HKUSAR, China
| | - B Tang
- Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, China; Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, China.
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Padhan DK, Sengupta A, Patra M, Ganguly A, Mahata SK, Sen M. CCN6 regulates mitochondrial respiratory complex assembly and activity. FASEB J 2020; 34:12163-12176. [PMID: 32686858 DOI: 10.1096/fj.202000405rr] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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: 02/21/2020] [Revised: 06/26/2020] [Accepted: 06/29/2020] [Indexed: 12/29/2022]
Abstract
Cellular communication network factor 6 (CCN6) mutations are linked with Progressive Pseudo Rheumatoid Dysplasia (PPRD) a debilitating musculoskeletal disorder. The function of CCN6 and the mechanism of PPRD pathogenesis remain unclear. Accordingly, we focused on the functional characterization of CCN6 and CCN6 mutants. Using size exclusion chromatography and native polyacrylamide gel electrophoresis we demonstrated that CCN6 is present as a component of the mitochondrial respiratory complex in human chondrocyte lines. By means of siRNA-mediated transfection and electron microscopy we showed that moderate reduction in CCN6 expression decreases the RER- mitochondria inter-membrane distance. Parallel native PAGE, immunoblotting and Complex I activity assays furthermore revealed increase in both mitochondrial distribution of CCN6 and mitochondrial respiratory complex assembly/activity in CCN6 depleted cells. CCN6 mutants resembling those linked with PPRD, which were generated by CRISPR-Cas9 technology displayed low level of expression of mutant CCN6 protein and inhibited respiratory complex assembly/activity. Electron microscopy and MTT assay of the mutants revealed abnormal mitochondria and poor cell viability. Taken together, our results indicate that CCN6 regulates mitochondrial respiratory complex assembly/activity as part of the mitochondrial respiratory complex by controlling the proximity of RER with the mitochondria, and CCN6 mutations disrupt mitochondrial respiratory complex assembly/activity resulting in mitochondrial defects and poor cell viability.
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Affiliation(s)
- Deepesh Kumar Padhan
- Cancer Biology and Inflammatory Disorder Division, CSIR-Indian Institute of Chemical Biology, Kolkata, India
| | - Archya Sengupta
- Cancer Biology and Inflammatory Disorder Division, CSIR-Indian Institute of Chemical Biology, Kolkata, India
| | - Milan Patra
- Hadassah Medical School, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Ananya Ganguly
- Cancer Biology and Inflammatory Disorder Division, CSIR-Indian Institute of Chemical Biology, Kolkata, India
| | - Sushil Kumar Mahata
- VA San Diego Healthcare System, University of California, San Diego, CA, USA
| | - Malini Sen
- Cancer Biology and Inflammatory Disorder Division, CSIR-Indian Institute of Chemical Biology, Kolkata, India
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Pode-Shakked B, Vivante A, Barel O, Padeh S, Marek-Yagel D, Veber A, Abudi S, Eliyahu A, Tirosh I, Shpilman S, Shril S, Hildebrandt F, Shohat M, Anikster Y. Progressive Pseudorheumatoid Dysplasia resolved by whole exome sequencing: a novel mutation in WISP3 and review of the literature. BMC Med Genet 2019; 20:53. [PMID: 30922245 DOI: 10.1186/s12881-019-0787-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Accepted: 03/18/2019] [Indexed: 12/23/2022]
Abstract
Background Progressive pseudorheumatoid dysplasia (PPRD) is a rare autosomal-recessive, non-inflammatory arthropathy, shown to be caused by mutations in the WNT1-inducible signaling pathway protein 3 (WISP3) gene. Although several hundred cases were reported worldwide, the diagnosis remains challenging. Subsequently, the syndrome is often unrecognized and misdiagnosed (for instance, as Juvenile Idiopathic Arthritis), leading to unnecessary procedures and treatments. The objective of the current study was to identify the molecular basis in a family with PPRD and describe their phenotype and course of illness. Patients and methods We present here a multiply affected consanguineous family of Iraqi-Jewish descent with PPRD. The proband, a 6.5 years old girl, presented with bilateral symmetric bony enlargements of the 1st interphalangeal joints of the hands, without signs of synovitis. Molecular analysis of the family was pursued using Whole Exome Sequencing (WES) and homozygosity mapping. Results WES analysis brought to the identification of a novel homozygous missense mutation (c.257G > T, p.C86F) in the WISP3 gene. Following this diagnosis, an additional 53 years old affected family member was found to harbor the mutation. Two other individuals in the family were reported to have had similar involvement however both had died of unrelated causes. Conclusion The reported family underscores the importance of recognition of this unique skeletal dysplasia by clinicians, and especially by pediatric rheumatologists and orthopedic surgeons. Electronic supplementary material The online version of this article (10.1186/s12881-019-0787-x) contains supplementary material, which is available to authorized users.
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Jurgens J, Sobreira N, Modaff P, Reiser CA, Seo SH, Seong MW, Park SS, Kim OH, Cho TJ, Pauli RM. Novel COL2A1 variant (c.619G>A, p.Gly207Arg) manifesting as a phenotype similar to progressive pseudorheumatoid dysplasia and spondyloepiphyseal dysplasia, Stanescu type. Hum Mutat 2015; 36:1004-8. [PMID: 26183434 DOI: 10.1002/humu.22839] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [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: 04/02/2015] [Accepted: 07/02/2015] [Indexed: 01/09/2023]
Abstract
Progressive pseudorheumatoid dysplasia (PPRD) is a rare, autosomal-recessive condition characterized by mild spondyloepiphyseal dysplasia (SED) and severe, progressive, early-onset arthritis due to WISP3 mutations. SED, Stanescu type, is a vaguely delineated autosomal-dominant dysplasia of unknown genetic etiology. Here, we report three individuals from two unrelated families with radiological features similar to PPRD and SED, Stanescu type who share the same novel COL2A1 variant and were matched following discussion at an academic conference. In the first family, we performed whole-exome sequencing on three family members, two of whom have a PPRD-like phenotype, and identified a heterozygous variant (c.619G>A, p.Gly207Arg) in both affected individuals. Independently, targeted sequencing of the COL2A1 gene in an unrelated proband with a similar phenotype identified the same heterozygous variant. We suggest that the p.Gly207Arg variant causes a distinct type II collagenopathy with features of PPRD and SED, Stanescu type.
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Affiliation(s)
- Julie Jurgens
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, 21205.,Predoctoral Training Program in Human Genetics, Johns Hopkins University School of Medicine, Baltimore, Maryland, 21205
| | - Nara Sobreira
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, 21205
| | - Peggy Modaff
- Department of Pediatrics, University of Wisconsin-Madison, Madison, Wisconsin, 53705
| | - Catherine A Reiser
- Department of Pediatrics, University of Wisconsin-Madison, Madison, Wisconsin, 53705
| | - Soo Hyun Seo
- Department of Laboratory Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, 110-744, Republic of Korea
| | - Moon-Woo Seong
- Department of Laboratory Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, 110-744, Republic of Korea
| | - Sung Sup Park
- Department of Laboratory Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, 110-744, Republic of Korea
| | - Ok Hwa Kim
- Department of Radiology, Woorisoa Children's Hospital, Seoul, 152-862, Republic of Korea
| | - Tae-Joon Cho
- Department of Orthopaedic Surgery, Seoul National University College of Medicine, Seoul, 110-744, Republic of Korea
| | - Richard M Pauli
- Department of Pediatrics, University of Wisconsin-Madison, Madison, Wisconsin, 53705
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