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Kho I, Demina EP, Pan X, Londono I, Cairo CW, Sturiale L, Palmigiano A, Messina A, Garozzo D, Ung RV, Mac-Way F, Bonneil É, Thibault P, Lemaire M, Morales CR, Pshezhetsky AV. Severe kidney dysfunction in sialidosis mice reveals an essential role for neuraminidase 1 in reabsorption. JCI Insight 2023; 8:e166470. [PMID: 37698928 PMCID: PMC10619504 DOI: 10.1172/jci.insight.166470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Accepted: 09/06/2023] [Indexed: 09/14/2023] Open
Abstract
Sialidosis is an ultra-rare multisystemic lysosomal disease caused by mutations in the neuraminidase 1 (NEU1) gene. The severe type II form of the disease manifests with a prenatal/infantile or juvenile onset, bone abnormalities, severe neuropathology, and visceromegaly. A subset of these patients present with nephrosialidosis, characterized by abrupt onset of fulminant glomerular nephropathy. We studied the pathophysiological mechanism of the disease in 2 NEU1-deficient mouse models, a constitutive Neu1-knockout, Neu1ΔEx3, and a conditional phagocyte-specific knockout, Neu1Cx3cr1ΔEx3. Mice of both strains exhibited terminal urinary retention and severe kidney damage with elevated urinary albumin levels, loss of nephrons, renal fibrosis, presence of storage vacuoles, and dysmorphic mitochondria in the intraglomerular and tubular cells. Glycoprotein sialylation in glomeruli, proximal distal tubules, and distal tubules was drastically increased, including that of an endocytic reabsorption receptor megalin. The pool of megalin bearing O-linked glycans with terminal galactose residues, essential for protein targeting and activity, was reduced to below detection levels. Megalin levels were severely reduced, and the protein was directed to lysosomes instead of the apical membrane. Together, our results demonstrated that desialylation by NEU1 plays a crucial role in processing and cellular trafficking of megalin and that NEU1 deficiency in sialidosis impairs megalin-mediated protein reabsorption.
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Affiliation(s)
- Ikhui Kho
- CHU Sainte-Justine Research Center, University of Montreal, Montreal, Québec, Canada
- Department of Anatomy and Cell Biology, McGill University, Montreal, Québec, Canada
| | - Ekaterina P. Demina
- CHU Sainte-Justine Research Center, University of Montreal, Montreal, Québec, Canada
| | - Xuefang Pan
- CHU Sainte-Justine Research Center, University of Montreal, Montreal, Québec, Canada
| | - Irene Londono
- CHU Sainte-Justine Research Center, University of Montreal, Montreal, Québec, Canada
| | | | - Luisa Sturiale
- CNR, Institute for Polymers, Composites and Biomaterials, Catania, Italy
| | - Angelo Palmigiano
- CNR, Institute for Polymers, Composites and Biomaterials, Catania, Italy
| | - Angela Messina
- CNR, Institute for Polymers, Composites and Biomaterials, Catania, Italy
| | - Domenico Garozzo
- CNR, Institute for Polymers, Composites and Biomaterials, Catania, Italy
| | - Roth-Visal Ung
- CHU de Québec Research Center, L’Hôtel-Dieu de Québec Hospital, Faculty and Department of Medicine, University Laval, Québec City, Québec, Canada
| | - Fabrice Mac-Way
- CHU de Québec Research Center, L’Hôtel-Dieu de Québec Hospital, Faculty and Department of Medicine, University Laval, Québec City, Québec, Canada
| | - Éric Bonneil
- Institute for Research in Immunology and Cancer, University of Montreal, Montreal, Québec, Canada
| | - Pierre Thibault
- Institute for Research in Immunology and Cancer, University of Montreal, Montreal, Québec, Canada
| | - Mathieu Lemaire
- Division of Nephrology, The Hospital for Sick Kids, Faculty of Medicine, University of Toronto, Ontario, Canada
- Cell Biology Program, SickKids Research Institute, Toronto, Ontario, Canada
| | - Carlos R. Morales
- Department of Anatomy and Cell Biology, McGill University, Montreal, Québec, Canada
| | - Alexey V. Pshezhetsky
- CHU Sainte-Justine Research Center, University of Montreal, Montreal, Québec, Canada
- Department of Anatomy and Cell Biology, McGill University, Montreal, Québec, Canada
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Oppezzo A, Monney L, Kilian H, Slimani L, Maczkowiak-Chartois F, Rosselli F. Fanca deficiency is associated with alterations in osteoclastogenesis that are rescued by TNFα. Cell Biosci 2023; 13:115. [PMID: 37355617 DOI: 10.1186/s13578-023-01067-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 06/09/2023] [Indexed: 06/26/2023] Open
Abstract
BACKGROUND Hematopoietic stem cells (HSCs) reside in the bone marrow (BM) niche, which includes bone-forming and bone-resorbing cells, i.e., osteoblasts (OBs) and osteoclasts (OCs). OBs originate from mesenchymal progenitors, while OCs are derived from HSCs. Self-renewal, proliferation and differentiation of HSCs are under the control of regulatory signals generated by OBs and OCs within the BM niche. Consequently, OBs and OCs control both bone physiology and hematopoiesis. Since the human developmental and bone marrow failure genetic syndrome fanconi anemia (FA) presents with skeletal abnormalities, osteoporosis and HSC impairment, we wanted to test the hypothesis that the main pathological abnormalities of FA could be related to a defect in OC physiology and/or in bone homeostasis. RESULTS We revealed here that the intrinsic differentiation of OCs from a Fanca-/- mouse is impaired in vitro due to overactivation of the p53-p21 axis and defects in NF-kB signaling. The OC differentiation abnormalities observed in vitro were rescued by treating Fanca-/- cells with the p53 inhibitor pifithrin-α, by treatment with the proinflammatory cytokine TNFα or by coculturing them with Fanca-proficient or Fanca-deficient osteoblastic cells. CONCLUSIONS Overall, our results highlight an unappreciated role of Fanca in OC differentiation that is potentially circumvented in vivo by the presence of OBs and TNFα in the BM niche.
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Affiliation(s)
- Alessia Oppezzo
- CNRS UMR9019, Équipe labellisée La Ligue contre le Cancer, Gustave Roussy Cancer Campus, 114 rue Edouard Vaillant, 94805, Villejuif, France
- Gustave Roussy Cancer Center, Villejuif, France
- Université Paris Saclay, Orsay, France
- IFOM ETS, The AIRC Institute of Molecular Oncology, Milan, Italy
| | - Lovely Monney
- CNRS UMR9019, Équipe labellisée La Ligue contre le Cancer, Gustave Roussy Cancer Campus, 114 rue Edouard Vaillant, 94805, Villejuif, France
- Gustave Roussy Cancer Center, Villejuif, France
- Université Paris Saclay, Orsay, France
| | - Henri Kilian
- URP2496 Pathologies, Imagerie et Biothérapies Orofaciales et Plateforme Imagerie du Vivant (PIV), FHU-DDS-net, Dental School, Université de Paris, Montrouge, France
| | - Lofti Slimani
- URP2496 Pathologies, Imagerie et Biothérapies Orofaciales et Plateforme Imagerie du Vivant (PIV), FHU-DDS-net, Dental School, Université de Paris, Montrouge, France
| | - Frédérique Maczkowiak-Chartois
- CNRS UMR9019, Équipe labellisée La Ligue contre le Cancer, Gustave Roussy Cancer Campus, 114 rue Edouard Vaillant, 94805, Villejuif, France
- Gustave Roussy Cancer Center, Villejuif, France
- Université Paris Saclay, Orsay, France
| | - Filippo Rosselli
- CNRS UMR9019, Équipe labellisée La Ligue contre le Cancer, Gustave Roussy Cancer Campus, 114 rue Edouard Vaillant, 94805, Villejuif, France.
- Gustave Roussy Cancer Center, Villejuif, France.
- Université Paris Saclay, Orsay, France.
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Geilmann S, Solstad R, Palmquist R, Flores Daboub J, Botto LD, Grubb PH, Bonkowsky JL, Longo N, Malone Jenkins S. A novel RAD51 variant resulting in Fanconi anemia identified in an infant with multiple congenital anomalies. Clin Case Rep 2023; 11:e6810. [PMID: 36698515 PMCID: PMC9850852 DOI: 10.1002/ccr3.6810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 12/01/2022] [Accepted: 12/14/2022] [Indexed: 01/20/2023] Open
Abstract
Fanconi anemia, FA, is a rare, multi-system disease caused by pathogenic variants in DNA repair genes. We report a novel RAD51 variant in an infant with FA whose tracheobronchomalacia has not been described in FA. His severe presentation expands the phenotype of RAD51-associated FA, reported only in three patients previously.
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Affiliation(s)
| | - Rachel Solstad
- Department of PediatricsUniversity of Utah School of MedicineSalt Lake CityUtahUSA
| | - Rachel Palmquist
- Division of Pediatric Neurology, Department of PediatricsUniversity of Utah School of MedicineSalt Lake CityUtahUSA,Center for Personalized MedicinePrimary Children's HospitalSalt Lake CityUtahUSA
| | - Josue Flores Daboub
- Division of Medical Genetics, Department of PediatricsUniversity of Utah School of MedicineSalt Lake CityUtahUSA
| | - Lorenzo D. Botto
- Division of Medical Genetics, Department of PediatricsUniversity of Utah School of MedicineSalt Lake CityUtahUSA
| | - Peter H. Grubb
- Division of Neonatology, Department of PediatricsUniversity of Utah School of MedicineSalt Lake CityUtahUSA
| | - Josh L. Bonkowsky
- Division of Pediatric Neurology, Department of PediatricsUniversity of Utah School of MedicineSalt Lake CityUtahUSA,Center for Personalized MedicinePrimary Children's HospitalSalt Lake CityUtahUSA
| | - Nicola Longo
- Division of Medical Genetics, Department of PediatricsUniversity of Utah School of MedicineSalt Lake CityUtahUSA
| | - Sabrina Malone Jenkins
- Center for Personalized MedicinePrimary Children's HospitalSalt Lake CityUtahUSA,Division of Neonatology, Department of PediatricsUniversity of Utah School of MedicineSalt Lake CityUtahUSA
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Qiu M, Tu L, Zhao M, Yang M, Qi J, Xie Y, Gu J. Ataxia-televangelist mutated (ATM)/ ATR serine/threonine kinase (ATR)-mediated RAD51 recombinase (RAD51) promotes osteogenic differentiation and inhibits osteoclastogenesis in osteoporosis. Bioengineered 2022; 13:4201-4211. [PMID: 35176943 PMCID: PMC8974111 DOI: 10.1080/21655979.2022.2026729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Osteoporosis is a metabolic bone disease that significantly affects the quality of life and can even lead to death. In this study, we aimed to investigate the role of RAD51 recombinase (RAD51) in osteoblast and osteoclast differentiation. We analyzed differentially expressed genes using microarray analysis. The osteogenic differentiation capability was analyzed by alkaline phosphatase (ALP) staining and alizarin red staining assays. Osteogenesis and osteoclast related genes expression was detected using quantitative real-time PCR (qPCR) and Western blotting. The phosphorylation of Ataxia-telangiectasia mutated (ATM) and ATR serine/threonine kinase (ATR) was tested using Western blotting. The effect of RAD51 on osteoporosis was also explored in vivo. The results showed that RAD51 was downregulated in osteoporosis, but upregulated in differentiated osteoblasts. Overexpression of RAD51 enhanced the differentiation of osteoblasts and suppressed the formation of osteoclasts. Furthermore, p-ATM and p-ATR levels were upregulated in osteoblasts and downregulated in osteoclasts. RAD51 expression was reduced by the ATM/ATR pathway inhibitor AZ20. AZ20 treatment inhibited osteoblastogenesis and promoted osteoclastogenesis, whereas RAD51 reversed the effects induced by AZ20. Moreover, RAD51 improved bone microarchitecture in vivo. Taken together, ATM/ATR signaling-mediated RAD51 promoted osteogenic differentiation and suppressed osteoclastogenesis. These findings reveal a critical role for RAD51 in osteoporosis.
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Affiliation(s)
- Minli Qiu
- Department of Rheumatology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Liudan Tu
- Department of Rheumatology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Minjing Zhao
- Department of Rheumatology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Mingcan Yang
- Department of Rheumatology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Jun Qi
- Department of Rheumatology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Ya Xie
- Department of Rheumatology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Jieruo Gu
- Department of Rheumatology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
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Animal models of Fanconi anemia: A developmental and therapeutic perspective on a multifaceted disease. Semin Cell Dev Biol 2021; 113:113-131. [PMID: 33558144 DOI: 10.1016/j.semcdb.2020.11.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 10/17/2020] [Accepted: 11/18/2020] [Indexed: 12/31/2022]
Abstract
Fanconi anemia (FA) is a genetic disorder characterized by developmental abnormalities, progressive bone marrow failure, and increased susceptibility to cancer. FA animal models have been useful to understand the pathogenesis of the disease. Herein, we review FA developmental models that have been developed to simulate human FA, focusing on zebrafish and mouse models. We summarize the recapitulated phenotypes observed in these in vivo models including bone, gametogenesis and sterility defects, as well as marrow failure. We also discuss the relevance of aldehydes in pathogenesis of FA, emphasizing on hematopoietic defects. In addition, we provide a summary of potential therapeutic agents, such as aldehyde scavengers, TGFβ inhibitors, and gene therapy for FA. The diversity of FA animal models makes them useful for understanding FA etiology and allows the discovery of new therapies.
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