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Chen Y, Zhang L, Shi X, Han J, Chen J, Zhang X, Xie D, Li Z, Niu X, Chen L, Yang C, Sun X, Zhou T, Su P, Li N, Greenblatt MB, Ke R, Huang J, Chen Z, Xu R. Characterization of the Nucleus Pulposus Progenitor Cells via Spatial Transcriptomics. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2303752. [PMID: 38311573 PMCID: PMC11095158 DOI: 10.1002/advs.202303752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 01/11/2024] [Indexed: 02/06/2024]
Abstract
Loss of refreshment in nucleus pulposus (NP) cellularity leads to intervertebral disc (IVD) degeneration. Nevertheless, the cellular sequence of NP cell differentiation remains unclear, although an increasing body of literature has identified markers of NP progenitor cells (NPPCs). Notably, due to their fragility, the physical enrichment of NP-derived cells has limited conventional transcriptomic approaches in multiple studies. To overcome this limitation, a spatially resolved transcriptional atlas of the mouse IVD is generated via the 10x Genomics Visium platform dividing NP spots into two clusters. Based on this, most reported NPPC-markers, including Cathepsin K (Ctsk), are rare and predominantly located within the NP-outer subset. Cell lineage tracing further evidence that a small number of Ctsk-expressing cells generate the entire adult NP tissue. In contrast, Tie2, which has long suggested labeling NPPCs, is actually neither expressed in NP subsets nor labels NPPCs and their descendants in mouse models; consistent with this, an in situ sequencing (ISS) analysis validated the absence of Tie2 in NP tissue. Similarly, no Tie2-cre-mediated labeling of NPPCs is observed in an IVD degenerative mouse model. Altogether, in this study, the first spatial transcriptomic map of the IVD is established, thereby providing a public resource for bone biology.
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Affiliation(s)
- Yu Chen
- The First Affiliated Hospital of Xiamen University‐ICMRS Collaborating Center for Skeletal Stem CellsState Key Laboratory of Cellular Stress BiologyFaculty of Medicine and Life SciencesSchool of MedicineXiamen UniversityXiamen361102China
- Xiamen Key Laboratory of Regeneration MedicineFujian Provincial Key Laboratory of Organ and Tissue RegenerationSchool of MedicineXiamen UniversityXiamen361102China
| | - Long Zhang
- The First Affiliated Hospital of Xiamen University‐ICMRS Collaborating Center for Skeletal Stem CellsState Key Laboratory of Cellular Stress BiologyFaculty of Medicine and Life SciencesSchool of MedicineXiamen UniversityXiamen361102China
- Xiamen Key Laboratory of Regeneration MedicineFujian Provincial Key Laboratory of Organ and Tissue RegenerationSchool of MedicineXiamen UniversityXiamen361102China
| | - Xueqing Shi
- The First Affiliated Hospital of Xiamen University‐ICMRS Collaborating Center for Skeletal Stem CellsState Key Laboratory of Cellular Stress BiologyFaculty of Medicine and Life SciencesSchool of MedicineXiamen UniversityXiamen361102China
- Xiamen Key Laboratory of Regeneration MedicineFujian Provincial Key Laboratory of Organ and Tissue RegenerationSchool of MedicineXiamen UniversityXiamen361102China
| | - Jie Han
- The First Affiliated Hospital of Xiamen University‐ICMRS Collaborating Center for Skeletal Stem CellsState Key Laboratory of Cellular Stress BiologyFaculty of Medicine and Life SciencesSchool of MedicineXiamen UniversityXiamen361102China
- Xiamen Key Laboratory of Regeneration MedicineFujian Provincial Key Laboratory of Organ and Tissue RegenerationSchool of MedicineXiamen UniversityXiamen361102China
| | - Jingyu Chen
- Gene Denovo Biotechnology CoGuangzhou510006China
| | - Xinya Zhang
- School of Medicine and School of Biomedical SciencesHuaqiao UniversityQuanzhou362000China
| | - Danlin Xie
- School of Medicine and School of Biomedical SciencesHuaqiao UniversityQuanzhou362000China
- School of Life SciencesWestlake UniversityHangzhou310030China
| | - Zan Li
- The First Affiliated Hospital of Xiamen University‐ICMRS Collaborating Center for Skeletal Stem CellsState Key Laboratory of Cellular Stress BiologyFaculty of Medicine and Life SciencesSchool of MedicineXiamen UniversityXiamen361102China
- Xiamen Key Laboratory of Regeneration MedicineFujian Provincial Key Laboratory of Organ and Tissue RegenerationSchool of MedicineXiamen UniversityXiamen361102China
| | - Xing Niu
- China Medical UniversityShenyangLiaoning110122China
| | - Lijie Chen
- China Medical UniversityShenyangLiaoning110122China
| | - Chaoyong Yang
- Department of Chemical BiologyCollege of Chemistry and Chemical EngineeringXiamen UniversityXiamen361005China
| | - Xiujie Sun
- Department of Obstetrics and GynecologySchool of MedicineXiang'an Hospital of Xiamen UniversityXiamen UniversityXiamen361102China
| | - Taifeng Zhou
- Department of Spine SurgeryGuangdong Provincial Key Laboratory of Orthopedics and TraumatologyThe First Affiliated Hospital of Sun Yat‐sen UniversityGuangzhou510080China
| | - Peiqiang Su
- Department of Spine SurgeryGuangdong Provincial Key Laboratory of Orthopedics and TraumatologyThe First Affiliated Hospital of Sun Yat‐sen UniversityGuangzhou510080China
| | - Na Li
- The First Affiliated Hospital of Xiamen University‐ICMRS Collaborating Center for Skeletal Stem CellsState Key Laboratory of Cellular Stress BiologyFaculty of Medicine and Life SciencesSchool of MedicineXiamen UniversityXiamen361102China
- Xiamen Key Laboratory of Regeneration MedicineFujian Provincial Key Laboratory of Organ and Tissue RegenerationSchool of MedicineXiamen UniversityXiamen361102China
| | - Matthew B. Greenblatt
- Department of Pathology and Laboratory MedicineWeill Cornell Medical CollegeNew YorkNY10065USA
- Research DivisionHospital for Special SurgeryNew YorkNY10065USA
| | - Rongqin Ke
- School of Medicine and School of Biomedical SciencesHuaqiao UniversityQuanzhou362000China
| | - Jianming Huang
- Department of OrthopedicsChengong Hospital (the 73th Group Military Hospital of People's Liberation Army) affiliated to Xiamen UniversityXiamen361000China
| | - Zhe‐Sheng Chen
- College of Pharmacy and Health SciencesSt. John's UniversityNew YorkNY11439USA
| | - Ren Xu
- The First Affiliated Hospital of Xiamen University‐ICMRS Collaborating Center for Skeletal Stem CellsState Key Laboratory of Cellular Stress BiologyFaculty of Medicine and Life SciencesSchool of MedicineXiamen UniversityXiamen361102China
- Xiamen Key Laboratory of Regeneration MedicineFujian Provincial Key Laboratory of Organ and Tissue RegenerationSchool of MedicineXiamen UniversityXiamen361102China
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Wu X, Chen M, Lin S, Chen S, Gu J, Wu Y, Qu M, Gong W, Yao Q, Li H, Zou X, Chen D, Xiao G. Loss of Pinch Proteins Causes Severe Degenerative Disc Disease-Like Lesions in Mice. Aging Dis 2023; 14:1818-1833. [PMID: 37196110 PMCID: PMC10529740 DOI: 10.14336/ad.2023.0212] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Accepted: 02/12/2023] [Indexed: 05/19/2023] Open
Abstract
Degenerative disc disease (DDD) is one of the most common skeletal disorders affecting aged populations. DDD is the leading cause of low back/neck pain, resulting in disability and huge socioeconomic burdens. However, the molecular mechanisms underlying DDD initiation and progression remain poorly understood. Pinch1 and Pinch2 are LIM-domain-containing proteins with crucial functions in mediating multiple fundamental biological processes, such as focal adhesion, cytoskeletal organization, cell proliferation, migration, and survival. In this study, we found that Pinch1 and Pinch2 were both highly expressed in healthy intervertebral discs (IVDs) and dramatically downregulated in degenerative IVDs in mice. Deleting Pinch1 in aggrecan-expressing cells and Pinch2 globally (AggrecanCreERT2; Pinch1fl/fl; Pinch2-/-) caused striking spontaneous DDD-like lesions in lumbar IVDs in mice. Pinch loss inhibited cell proliferation and promoted extracellular matrix (ECM) degradation and apoptosis in lumbar IVDs. Pinch loss markedly enhanced the production of pro-inflammatory cytokines, especially TNFα, in lumbar IVDs and exacerbated instability-induced DDD defects in mice. Pharmacological inhibition of TNFα signaling mitigated the DDD-like lesions caused by Pinch loss. In human degenerative NP samples, reduced expression of Pinch proteins was correlated with severe DDD progression and a markedly upregulated expression of TNFα. Collectively, we demonstrate the crucial role of Pinch proteins in maintaining IVD homeostasis and define a potential therapeutic target for DDD.
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Affiliation(s)
- Xiaohao Wu
- Department of Biochemistry, School of Medicine, Shenzhen Key Laboratory of Cell Microenvironment, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Southern University of Science and Technology, Shenzhen, China.
| | - Mingjue Chen
- Department of Biochemistry, School of Medicine, Shenzhen Key Laboratory of Cell Microenvironment, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Southern University of Science and Technology, Shenzhen, China.
| | - Sixiong Lin
- Guangdong Provincial Key Laboratory of Orthopaedics and Traumatology, Department of Spine Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.
| | - Sheng Chen
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei, China.
| | - Jingliang Gu
- Department of Orthopedics, Shanghai municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, China.
| | - Yuchen Wu
- Department of Endocrinology, Chongqing Traditional Chinese Medicine Hospital, Chongqing, China.
| | - Minghao Qu
- Department of Biochemistry, School of Medicine, Shenzhen Key Laboratory of Cell Microenvironment, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Southern University of Science and Technology, Shenzhen, China.
| | - Weiyuan Gong
- Department of Biochemistry, School of Medicine, Shenzhen Key Laboratory of Cell Microenvironment, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Southern University of Science and Technology, Shenzhen, China.
| | - Qing Yao
- Department of Biochemistry, School of Medicine, Shenzhen Key Laboratory of Cell Microenvironment, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Southern University of Science and Technology, Shenzhen, China.
| | - Huiping Li
- Department of Respiratory and Critical Care Medicine, Shenzhen People’s Hospital, Southern University of Science and Technology, Shenzhen, China.
| | - Xuenong Zou
- Guangdong Provincial Key Laboratory of Orthopaedics and Traumatology, Department of Spine Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.
| | - Di Chen
- Research Center for Human Tissues and Organs Degeneration, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China.
| | - Guozhi Xiao
- Department of Biochemistry, School of Medicine, Shenzhen Key Laboratory of Cell Microenvironment, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Southern University of Science and Technology, Shenzhen, China.
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Loisay L, Komla-Ebri D, Morice A, Heuzé Y, Viaut C, de La Seiglière A, Kaci N, Chan D, Lamouroux A, Baujat G, Bassett JD, Williams GR, Legeai-Mallet L. Hypochondroplasia gain-of-function mutation in FGFR3 causes defective bone mineralization in mice. JCI Insight 2023; 8:e168796. [PMID: 37345656 PMCID: PMC10371252 DOI: 10.1172/jci.insight.168796] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Accepted: 05/10/2023] [Indexed: 06/23/2023] Open
Abstract
Hypochondroplasia (HCH) is a mild dwarfism caused by missense mutations in fibroblast growth factor receptor 3 (FGFR3), with the majority of cases resulting from a heterozygous p.Asn540Lys gain-of-function mutation. Here, we report the generation and characterization of the first mouse model (Fgfr3Asn534Lys/+) of HCH to our knowledge. Fgfr3Asn534Lys/+ mice exhibited progressive dwarfism and impairment of the synchondroses of the cranial base, resulting in defective formation of the foramen magnum. The appendicular and axial skeletons were both severely affected and we demonstrated an important role of FGFR3 in regulation of cortical and trabecular bone structure. Trabecular bone mineral density (BMD) of long bones and vertebral bodies was decreased, but cortical BMD increased with age in both tibiae and femurs. These results demonstrate that bones in Fgfr3Asn534Lys/+ mice, due to FGFR3 activation, exhibit some characteristics of osteoporosis. The present findings emphasize the detrimental effect of gain-of-function mutations in the Fgfr3 gene on long bone modeling during both developmental and aging processes, with potential implications for the management of elderly patients with hypochondroplasia and osteoporosis.
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Affiliation(s)
- Léa Loisay
- Université de Paris Cité, Imagine Institute, Laboratory of Molecular and Physiopathological Bases of Osteochondrodysplasia, INSERM UMR1163, Paris, France
| | - Davide Komla-Ebri
- Molecular Endocrinology Laboratory, Department of Metabolism Digestion and Reproduction, Imperial College London, London, United Kingdom
- UCB Pharma, Slough, United Kingdom
| | - Anne Morice
- Université de Paris Cité, Imagine Institute, Laboratory of Molecular and Physiopathological Bases of Osteochondrodysplasia, INSERM UMR1163, Paris, France
| | - Yann Heuzé
- UMR5199 PACEA, CNRS, MC, Université de Bordeaux, Pessac, France
| | - Camille Viaut
- Université de Paris Cité, Imagine Institute, Laboratory of Molecular and Physiopathological Bases of Osteochondrodysplasia, INSERM UMR1163, Paris, France
| | - Amélie de La Seiglière
- Université de Paris Cité, Imagine Institute, Laboratory of Molecular and Physiopathological Bases of Osteochondrodysplasia, INSERM UMR1163, Paris, France
| | - Nabil Kaci
- Université de Paris Cité, Imagine Institute, Laboratory of Molecular and Physiopathological Bases of Osteochondrodysplasia, INSERM UMR1163, Paris, France
| | - Danny Chan
- School of Biomedical Sciences, The University of Hong Kong, Pokfulam, Hong Kong, China
| | - Audrey Lamouroux
- Department of Medical Genetics, CHU Arnaud De Villeneuve, Montpellier, France
| | - Geneviève Baujat
- Université de Paris Cité, Imagine Institute, Laboratory of Molecular and Physiopathological Bases of Osteochondrodysplasia, INSERM UMR1163, Paris, France
- Department of Medical Genetics, French Reference Center for Skeletal Dysplasia, AP-HP, Necker Enfants Malades Hospital, Paris, France
| | - J.H. Duncan Bassett
- Molecular Endocrinology Laboratory, Department of Metabolism Digestion and Reproduction, Imperial College London, London, United Kingdom
| | - Graham R. Williams
- Molecular Endocrinology Laboratory, Department of Metabolism Digestion and Reproduction, Imperial College London, London, United Kingdom
| | - Laurence Legeai-Mallet
- Université de Paris Cité, Imagine Institute, Laboratory of Molecular and Physiopathological Bases of Osteochondrodysplasia, INSERM UMR1163, Paris, France
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