SNX10 gene mutation leading to osteopetrosis with dysfunctional osteoclasts
Abstract Autosomal recessive osteopetrosis (ARO) is a heterogeneous disorder, characterized by defective osteoclastic resorption of bone that results in increased bone density. We have studied nine individuals with an intermediate form of ARO, from the county of Västerbotten in Northern Sweden. All...
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2017
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oai:doaj.org-article:2ead0ecdd282451bb5f766d6ae982d052021-12-02T16:07:46ZSNX10 gene mutation leading to osteopetrosis with dysfunctional osteoclasts10.1038/s41598-017-02533-22045-2322https://doaj.org/article/2ead0ecdd282451bb5f766d6ae982d052017-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-02533-2https://doaj.org/toc/2045-2322Abstract Autosomal recessive osteopetrosis (ARO) is a heterogeneous disorder, characterized by defective osteoclastic resorption of bone that results in increased bone density. We have studied nine individuals with an intermediate form of ARO, from the county of Västerbotten in Northern Sweden. All afflicted individuals had an onset in early infancy with optic atrophy, and in four patients anemia was present at diagnosis. Tonsillar herniation, foramen magnum stenosis, and severe osteomyelitis of the jaw were common clinical features. Whole exome sequencing, verified by Sanger sequencing, identified a splice site mutation c.212 + 1 G > T in the SNX10 gene encoding sorting nexin 10. Sequence analysis of the SNX10 transcript in patients revealed activation of a cryptic splice site in intron 4 resulting in a frame shift and a premature stop (p.S66Nfs * 15). Haplotype analysis showed that all cases originated from a single mutational event, and the age of the mutation was estimated to be approximately 950 years. Functional analysis of osteoclast progenitors isolated from peripheral blood of patients revealed that stimulation with receptor activator of nuclear factor kappa-B ligand (RANKL) resulted in a robust formation of large, multinucleated osteoclasts which generated sealing zones; however these osteoclasts exhibited defective ruffled borders and were unable to resorb bone in vitro.Eva-Lena StattinPetra HenningJoakim KlarEmma McDermottChristina Stecksen-BlicksPer-Erik SandströmTherese G. KellgrenPatrik RydénGöran HallmansTorsten LönnerholmAdam AmeurMiep H. HelfrichFraser P. CoxonNiklas DahlJohan WikströmUlf H. LernerNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-16 (2017) |
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Medicine R Science Q Eva-Lena Stattin Petra Henning Joakim Klar Emma McDermott Christina Stecksen-Blicks Per-Erik Sandström Therese G. Kellgren Patrik Rydén Göran Hallmans Torsten Lönnerholm Adam Ameur Miep H. Helfrich Fraser P. Coxon Niklas Dahl Johan Wikström Ulf H. Lerner SNX10 gene mutation leading to osteopetrosis with dysfunctional osteoclasts |
| description |
Abstract Autosomal recessive osteopetrosis (ARO) is a heterogeneous disorder, characterized by defective osteoclastic resorption of bone that results in increased bone density. We have studied nine individuals with an intermediate form of ARO, from the county of Västerbotten in Northern Sweden. All afflicted individuals had an onset in early infancy with optic atrophy, and in four patients anemia was present at diagnosis. Tonsillar herniation, foramen magnum stenosis, and severe osteomyelitis of the jaw were common clinical features. Whole exome sequencing, verified by Sanger sequencing, identified a splice site mutation c.212 + 1 G > T in the SNX10 gene encoding sorting nexin 10. Sequence analysis of the SNX10 transcript in patients revealed activation of a cryptic splice site in intron 4 resulting in a frame shift and a premature stop (p.S66Nfs * 15). Haplotype analysis showed that all cases originated from a single mutational event, and the age of the mutation was estimated to be approximately 950 years. Functional analysis of osteoclast progenitors isolated from peripheral blood of patients revealed that stimulation with receptor activator of nuclear factor kappa-B ligand (RANKL) resulted in a robust formation of large, multinucleated osteoclasts which generated sealing zones; however these osteoclasts exhibited defective ruffled borders and were unable to resorb bone in vitro. |
| format |
article |
| author |
Eva-Lena Stattin Petra Henning Joakim Klar Emma McDermott Christina Stecksen-Blicks Per-Erik Sandström Therese G. Kellgren Patrik Rydén Göran Hallmans Torsten Lönnerholm Adam Ameur Miep H. Helfrich Fraser P. Coxon Niklas Dahl Johan Wikström Ulf H. Lerner |
| author_facet |
Eva-Lena Stattin Petra Henning Joakim Klar Emma McDermott Christina Stecksen-Blicks Per-Erik Sandström Therese G. Kellgren Patrik Rydén Göran Hallmans Torsten Lönnerholm Adam Ameur Miep H. Helfrich Fraser P. Coxon Niklas Dahl Johan Wikström Ulf H. Lerner |
| author_sort |
Eva-Lena Stattin |
| title |
SNX10 gene mutation leading to osteopetrosis with dysfunctional osteoclasts |
| title_short |
SNX10 gene mutation leading to osteopetrosis with dysfunctional osteoclasts |
| title_full |
SNX10 gene mutation leading to osteopetrosis with dysfunctional osteoclasts |
| title_fullStr |
SNX10 gene mutation leading to osteopetrosis with dysfunctional osteoclasts |
| title_full_unstemmed |
SNX10 gene mutation leading to osteopetrosis with dysfunctional osteoclasts |
| title_sort |
snx10 gene mutation leading to osteopetrosis with dysfunctional osteoclasts |
| publisher |
Nature Portfolio |
| publishDate |
2017 |
| url |
https://doaj.org/article/2ead0ecdd282451bb5f766d6ae982d05 |
| work_keys_str_mv |
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| _version_ |
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