Chloride Channel ClCN7 Mutations Are Responsible for Severe Recessive, Dominant, and Intermediate Osteopetrosis
@article{Frattini2003ChlorideCC, title={Chloride Channel ClCN7 Mutations Are Responsible for Severe Recessive, Dominant, and Intermediate Osteopetrosis}, author={Annalisa Frattini and Alessandra Pangrazio and Lucia Susani and Cristina Sobacchi and Massimiliano Mirolo and Mario Abinun and Marino Andolina and Adrienne M. Flanagan and Edwin M Horwitz and Ercan Mihci and Luigi Daniele Notarangelo and Ugo Ramenghi and Anna Teti and Johan L. K. Van Hove and Dragana Vuji{\'c} and Terri L. Young and Alberto Albertini and Paul J. Orchard and Paolo Vezzoni and Anna Villa}, journal={Journal of Bone and Mineral Research}, year={2003}, volume={18} }
Among 94 osteopetrotic patients presenting with a severe clinical picture and diagnosed early in life, 12 bore mutations in the ClCN7 gene, but only 7 of them had the expected two recessive mutations. The remaining five patients seem to be heterozygous for a ClCN7 mutation, and significant variations were observed in the clinical manifestations of their disease, even within the same family.
209 Citations
Mutations in OSTM1 (Grey Lethal) Define a Particularly Severe Form of Autosomal Recessive Osteopetrosis With Neural Involvement
- Biology, MedicineJournal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research
- 2006
It is suggested that OSTM1 defines a new subset of patients with severe central nervous system involvement that is also present in the gl mouse, which could represent a good model to study the role of the gene in the pathogenesis of this disease.
Molecular and clinical heterogeneity in CLCN7‐dependent osteopetrosis: report of 20 novel mutations
- Biology, MedicineHuman mutation
- 2010
Preliminary genotype‐phenotype correlations suggest that haploinsufficiency is not the mechanism causing ADO II, and the availability of biochemical assays to characterize ClC‐7 function will help to confirm this hypothesis.
Generation of the first autosomal dominant osteopetrosis type II (ADO2) disease models.
- BiologyBone
- 2014
A novel CLCN7 mutation resulting in a most severe form of autosomal recessive osteopetrosis
- Biology, MedicineEuropean Journal of Pediatrics
- 2009
This is the first report of ARO associated with a novel recessive R561Q variant in CLCN7 gene, in which prenatal diagnosis was made and the variant observed indeed represents the disease-causing mutation.
Novel CLCN7 mutation identified in a Han Chinese family with autosomal dominant osteopetrosis-2
- Medicine, BiologyMolecular pain
- 2016
Exome sequencing and Sanger sequencing were conducted in Han Chinese family members, and a novel missense variant c.2350A>T (p.R784W) in the chloride channel 7 gene (CLCN7) was identified, widening the CLCN7 gene mutation spectrum.
Clinical and Cellular Manifestations of OSTM1‐Related Infantile Osteopetrosis
- Medicine, BiologyJournal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research
- 2008
A novel mutation affecting the OSTM1 locus responsible for ARO is described, and a patient developed a unique neuronal pathology that provided evidence for an essential role of O STM1 in normal neuronal cell development.
SNX10 mutations define a subgroup of human autosomal recessive osteopetrosis with variable clinical severity
- Biology, MedicineJournal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research
- 2013
Results confirm the involvement of the SNX10 gene in human ARO and identify a new subset with a relatively favorable prognosis as compared to TCIRG1‐dependent cases.
A novel missense mutation in the CLCN7 gene linked to benign autosomal dominant osteopetrosis: a case series
- Biology, MedicineJournal of Medical Case Reports
- 2013
The investigation to identify the type of the inheritance patterns of osteopetrosis using molecular techniques, because consanguineous marriages exist within the family history, found that the father and his brother (the uncle) are carriers of the same mutation, whereas the mother and her sister do not carry any mutation of the Chloride channel 7 gene.
Severe Malignant Osteopetrosis Caused by a GL Gene Mutation
- MedicineJournal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research
- 2004
Infantile malignant autosomal recessive osteopetrosis is a genetically heterogeneous disease caused by the inability of OCLs to resorb and remodel bone, resulting in generalized osteosclerosis and…
References
SHOWING 1-10 OF 25 REFERENCES
Albers-Schönberg disease (autosomal dominant osteopetrosis, type II) results from mutations in the ClCN7 chloride channel gene.
- Medicine, BiologyHuman molecular genetics
- 2001
From genotype-phenotype correlations, it seems that ADO II reflects a dominant negative effect, whereas loss-of-function mutations in ClCN7 do not cause abnormalities in heterozygous individuals.
The mutational spectrum of human malignant autosomal recessive osteopetrosis.
- Biology, MedicineHuman molecular genetics
- 2001
This study contributes to the determination of genetic heterogeneity of arOP and allows further delineation of the other genetic defects causing this severe condition.
Autosomal dominant osteopetrosis type II with “malignant” presentation: further support for heterogeneity?
- MedicineClinical genetics
- 1990
A kindred in which the phenotypic spectrum varied from an asymptomatic condition in adults to a severely affected infant, presenting with anaemia, hepatosplenomegaly, hydrocephalus and blindness is described.
Osteopetrosis. A genetic and epidemiological study.
- MedicineClinical genetics
- 1987
By a systemic search of osteopetrosis in the county of Funen, Denmark, the prevalence was 5.5/100,000 inhabitants and there was a great variation in the clinical manifestations; 39% were asymptomatic.
Infantile osteopetrosis and neuronal storage disease
- MedicineNeurology
- 1983
This is the third case in which primary parenchymal disease of the brain was associated with infantile osteopetrosis and the first in which neuronal cytoplasmic storage was documented by light and electronmicroscopy.
Carbonic anhydrase II deficiency identified as the primary defect in the autosomal recessive syndrome of osteopetrosis with renal tubular acidosis and cerebral calcification.
- Medicine, BiologyProceedings of the National Academy of Sciences of the United States of America
- 1983
The clinical, radiological, and pathological findings in three siblings affected with the autosomal recessive syndrome of osteopetrosis with renal tubular acidosis and cerebral calcification have…
Defects in TCIRG1 subunit of the vacuolar proton pump are responsible for a subset of human autosomal recessive osteopetrosis
- MedicineNature Genetics
- 2000
It is shown that TCIRG1, encoding the osteoclast-specific 116-kD subunit of the vacuolar proton pump, is mutated in five of nine patients with a diagnosis of infantile malignant osteopetrosis, indicating that mutations in TC IRG1 are a frequent cause of autosomal recessive osteopeterosis in humans.
Mutations in the a3 subunit of the vacuolar H(+)-ATPase cause infantile malignant osteopetrosis.
- Medicine, BiologyHuman molecular genetics
- 2000
It is shown that mutations in the gene encoding the a3 subunit of the proton pump are a rather common cause of infantile osteopetrosis and suggests that this disease is genetically heterogeneous.
Loss of the ClC-7 Chloride Channel Leads to Osteopetrosis in Mice and Man
- Biology, MedicineCell
- 2001