7
views
0
recommends
+1 Recommend
0 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      Exogenous C-type natriuretic peptide restores normal growth and prevents early growth plate closure in its deficient rats

      research-article

      Read this article at

      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          Signaling by C-type natriuretic peptide (CNP) and its receptor, natriuretic peptide receptor-B, is a pivotal stimulator of endochondral bone growth. We recently developed CNP knockout (KO) rats that exhibit impaired skeletal growth with early growth plate closure. In the current study, we further characterized the phenotype and growth plate morphology in CNP-KO rats, and the effects of exogenous CNP in rats. We used CNP-53, an endogenous form of CNP consisting of 53 amino acids, and administered it for four weeks by continuous subcutaneous infusion at 0.15 or 0.5 mg/kg/day to four-week old CNP-KO and littermate wild type (WT) rats. We demonstrated that CNP-KO rats were useful as a reproducible animal model for skeletal dysplasia, due to their impairment in endochondral bone growth. There was no significant difference in plasma bone-turnover markers between the CNP-KO and WT rats. At eight weeks of age, growth plate closure was observed in the distal end of the tibia and the calcaneus of CNP-KO rats. Continuous subcutaneous infusion of CNP-53 significantly, and in a dose-dependent manner, stimulated skeletal growth in CNP-KO and WT rats, with CNP-KO rats being more sensitive to the treatment. CNP-53 also normalized the length of long bones and the growth plate thickness, and prevented growth plate closure in the CNP-KO rats. Using organ culture experiment of fetal rat tibia, gene set enrichment analysis indicated that CNP might have a negative influence on mitogen activated protein kinase signaling cascades in chondrocyte. Our results indicated that CNP-KO rats might be a valuable animal model for investigating growth plate physiology and the mechanism of growth plate closure, and that CNP-53, or its analog, may have the potential to promote growth and to prevent early growth plate closure in the short stature.

          Related collections

          Most cited references31

          • Record: found
          • Abstract: found
          • Article: not found

          Overexpression of CNP in chondrocytes rescues achondroplasia through a MAPK-dependent pathway.

          Achondroplasia is the most common genetic form of human dwarfism, for which there is presently no effective therapy. C-type natriuretic peptide (CNP) is a newly identified molecule that regulates endochondral bone growth through GC-B, a subtype of particulate guanylyl cyclase. Here we show that targeted overexpression of CNP in chondrocytes counteracts dwarfism in a mouse model of achondroplasia with activated fibroblast growth factor receptor 3 (FGFR-3) in the cartilage. CNP prevented the shortening of achondroplastic bones by correcting the decreased extracellular matrix synthesis in the growth plate through inhibition of the MAPK pathway of FGF signaling. CNP had no effect on the STAT-1 pathway of FGF signaling that mediates the decreased proliferation and the delayed differentiation of achondroplastic chondrocytes. These results demonstrate that activation of the CNP-GC-B system in endochondral bone formation constitutes a new therapeutic strategy for human achondroplasia.
            Bookmark
            • Record: found
            • Abstract: found
            • Article: not found

            Dwarfism and early death in mice lacking C-type natriuretic peptide.

            Longitudinal bone growth is determined by endochondral ossification that occurs as chondrocytes in the cartilaginous growth plate undergo proliferation, hypertrophy, cell death, and osteoblastic replacement. The natriuretic peptide family consists of three structurally related endogenous ligands, atrial, brain, and C-type natriuretic peptides (ANP, BNP, and CNP), and is thought to be involved in a variety of homeostatic processes. To investigate the physiological significance of CNP in vivo, we generated mice with targeted disruption of CNP (Nppc(-/-) mice). The Nppc(-/-) mice show severe dwarfism as a result of impaired endochondral ossification. They are all viable perinatally, but less than half can survive during postnatal development. The skeletal phenotypes are histologically similar to those seen in patients with achondroplasia, the most common genetic form of human dwarfism. Targeted expression of CNP in the growth plate chondrocytes can rescue the skeletal defect of Nppc(-/-) mice and allow their prolonged survival. This study demonstrates that CNP acts locally as a positive regulator of endochondral ossification in vivo and suggests its pathophysiological and therapeutic implication in some forms of skeletal dysplasia.
              Bookmark
              • Record: found
              • Abstract: found
              • Article: not found

              Mutations in the transmembrane natriuretic peptide receptor NPR-B impair skeletal growth and cause acromesomelic dysplasia, type Maroteaux.

              The homodimeric transmembrane receptor natriuretic peptide receptor B (NPR-B [also known as guanylate cyclase B, GC-B, and GUC2B]; gene name NPR2) produces cytoplasmic cyclic GMP from GTP on binding its extracellular ligand, C-type natriuretic peptide (CNP). CNP has previously been implicated in the regulation of skeletal growth in transgenic and knockout mice. The autosomal recessive skeletal dysplasia known as "acromesomelic dysplasia, type Maroteaux" (AMDM) maps to an interval that contains NPR2. We sequenced DNA from 21 families affected by AMDM and found 4 nonsense mutations, 4 frameshift mutations, 2 splice-site mutations, and 11 missense mutations. Molecular modeling was used to examine the putative protein change brought about by each missense mutation. Three missense mutations were tested in a functional assay and were found to have markedly deficient guanylyl cyclase activity. We also found that obligate carriers of NPR2 mutations have heights that are below the mean for matched controls. We conclude that, although NPR-B is expressed in a number of tissues, its major role is in the regulation of skeletal growth.
                Bookmark

                Author and article information

                Contributors
                Role: Data curationRole: Formal analysisRole: InvestigationRole: MethodologyRole: ResourcesRole: VisualizationRole: Writing – original draftRole: Writing – review & editing
                Role: ConceptualizationRole: Data curationRole: Formal analysisRole: InvestigationRole: MethodologyRole: Project administrationRole: ResourcesRole: SupervisionRole: ValidationRole: Writing – original draftRole: Writing – review & editing
                Role: Data curationRole: Formal analysisRole: InvestigationRole: MethodologyRole: ResourcesRole: ValidationRole: Writing – review & editing
                Role: Data curationRole: Formal analysisRole: InvestigationRole: MethodologyRole: SoftwareRole: ValidationRole: VisualizationRole: Writing – original draftRole: Writing – review & editing
                Role: Data curationRole: Formal analysisRole: MethodologyRole: ValidationRole: Writing – review & editing
                Role: Data curationRole: Formal analysisRole: InvestigationRole: MethodologyRole: ResourcesRole: ValidationRole: VisualizationRole: Writing – review & editing
                Role: Data curationRole: Formal analysisRole: InvestigationRole: MethodologyRole: ResourcesRole: ValidationRole: Writing – review & editing
                Role: Formal analysisRole: InvestigationRole: Methodology
                Role: Data curationRole: Formal analysisRole: MethodologyRole: ResourcesRole: SoftwareRole: ValidationRole: Writing – review & editing
                Role: Data curationRole: Formal analysisRole: InvestigationRole: MethodologyRole: ResourcesRole: ValidationRole: Writing – review & editing
                Role: Data curationRole: Formal analysisRole: Methodology
                Role: Data curationRole: Formal analysisRole: ResourcesRole: ValidationRole: Writing – original draftRole: Writing – review & editing
                Role: Data curationRole: SupervisionRole: Writing – review & editing
                Role: Data curationRole: Formal analysisRole: InvestigationRole: MethodologyRole: Resources
                Role: Data curationRole: InvestigationRole: MethodologyRole: SupervisionRole: Writing – review & editing
                Role: Data curationRole: Resources
                Role: Data curationRole: Methodology
                Role: Formal analysisRole: InvestigationRole: Methodology
                Role: ConceptualizationRole: Funding acquisitionRole: InvestigationRole: Project administrationRole: Writing – original draftRole: Writing – review & editing
                Role: Funding acquisitionRole: SupervisionRole: Writing – review & editing
                Role: Editor
                Journal
                PLoS One
                PLoS ONE
                plos
                plosone
                PLoS ONE
                Public Library of Science (San Francisco, CA USA )
                1932-6203
                20 September 2018
                2018
                : 13
                : 9
                : e0204172
                Affiliations
                [1 ] Department of Diabetes, Endocrinology and Nutrition, Kyoto University Graduate School of Medicine, Kyoto, Japan
                [2 ] Asubio Pharma Co. Ltd. Kobe, Japan
                [3 ] Medical Innovation Center, Kyoto University Graduate School of Medicine, Kyoto, Japan
                Universite de Nantes, FRANCE
                Author notes

                Competing Interests: KH, KM, YU, YK, IY, T Yamashita, YU-S, TF, AY and NI have nothing to disclose. MF, NM, KY, T Yotsumoto, TJ, RN, TH, HS, SY and KE were employed by Asubio Pharma Co., Ltd. There are no patents, products in development or marketed products to declare. This does not alter our adherence to PLOS ONE policies on sharing data and materials.

                Author information
                http://orcid.org/0000-0001-8866-5303
                Article
                PONE-D-18-14943
                10.1371/journal.pone.0204172
                6147488
                30235256
                011026ce-e4e0-45e4-9ba7-2857fc8c4b3c
                © 2018 Hirota et al

                This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

                History
                : 18 May 2018
                : 3 September 2018
                Page count
                Figures: 9, Tables: 3, Pages: 20
                Funding
                Funded by: funder-id http://dx.doi.org/10.13039/501100001691, Japan Society for the Promotion of Science;
                Award ID: JP 17K09881
                Award Recipient :
                Funded by: funder-id http://dx.doi.org/10.13039/501100001691, Japan Society for the Promotion of Science;
                Award ID: 21591176
                Award Recipient :
                Funded by: funder-id http://dx.doi.org/10.13039/100008732, Uehara Memorial Foundation;
                Award Recipient :
                This work was supported by Grants-in-Aid for Scientific Research from the Ministry of Education, Culture, Sports, Science and Technology of Japan (21591176 and JP 17K09881), and the Uehara Memorial Foundation. Asubio Pharma Co., Ltd. provided support in the form of salaries for authors [MF, NM, KY, TY, TJ, RN, TH, HS, SY and KE], but did not have any additional role in the study design, data collection and analysis, decision to publish, or preparation of the manuscript. The specific roles of these authors are articulated in the 'author contributions' section.
                Categories
                Research Article
                Biology and Life Sciences
                Anatomy
                Bone
                Growth Plate
                Medicine and Health Sciences
                Anatomy
                Bone
                Growth Plate
                Biology and Life Sciences
                Anatomy
                Biological Tissue
                Connective Tissue
                Bone
                Growth Plate
                Medicine and Health Sciences
                Anatomy
                Biological Tissue
                Connective Tissue
                Bone
                Growth Plate
                Biology and Life Sciences
                Anatomy
                Musculoskeletal System
                Skeleton
                Tibia
                Medicine and Health Sciences
                Anatomy
                Musculoskeletal System
                Skeleton
                Tibia
                Biology and Life Sciences
                Physiology
                Physiological Parameters
                Body Weight
                Medicine and Health Sciences
                Physiology
                Physiological Parameters
                Body Weight
                Biology and Life Sciences
                Anatomy
                Musculoskeletal System
                Skeleton
                Femur
                Medicine and Health Sciences
                Anatomy
                Musculoskeletal System
                Skeleton
                Femur
                Research and Analysis Methods
                Experimental Organism Systems
                Model Organisms
                Mouse Models
                Research and Analysis Methods
                Model Organisms
                Mouse Models
                Research and Analysis Methods
                Experimental Organism Systems
                Animal Models
                Mouse Models
                Biology and Life Sciences
                Biochemistry
                Hormones
                Peptide Hormones
                Natriuretic Peptide
                Biology and Life Sciences
                Anatomy
                Biological Tissue
                Connective Tissue
                Cartilage
                Chondrocytes
                Medicine and Health Sciences
                Anatomy
                Biological Tissue
                Connective Tissue
                Cartilage
                Chondrocytes
                Biology and Life Sciences
                Cell Biology
                Cellular Types
                Animal Cells
                Connective Tissue Cells
                Chondrocytes
                Biology and Life Sciences
                Anatomy
                Biological Tissue
                Connective Tissue
                Connective Tissue Cells
                Chondrocytes
                Medicine and Health Sciences
                Anatomy
                Biological Tissue
                Connective Tissue
                Connective Tissue Cells
                Chondrocytes
                Research and Analysis Methods
                Bioassays and Physiological Analysis
                Microarrays
                Custom metadata
                All relevant data are within the paper and its Supporting Information files.

                Uncategorized
                Uncategorized

                Comments

                Comment on this article