Schwannomatosis
|
0.800 |
Biomarker
|
disease |
BEFREE |
The INI1/SMARCB1 protein product (INI1), a component of a transcription complex, was recently implicated in the pathogenesis of schwannomas in two members of a single family with familial schwannomatosis.
|
18422762 |
2008 |
Schwannomatosis
|
0.800 |
AlteredExpression
|
disease |
BEFREE |
Germ-line SMARCB1 inactivation has been reported in association with rhabdoid tumor, epitheloid sarcoma and familial schwannomatosis, underscoring the importance of accurate mutation screening to ascertain recurrence and transmission risks.
|
20003390 |
2009 |
Schwannomatosis
|
0.800 |
Biomarker
|
disease |
BEFREE |
Although the exact oncogenetic mechanism in these schwannomas remains to be elucidated, our findings suggest that INI1 is the predisposing gene in familial schwannomatosis.
|
17357086 |
2007 |
Schwannomatosis
|
0.800 |
GeneticVariation
|
disease |
BEFREE |
Whereas NF2 is caused by mutations of the NF2 gene, schwannomatosis is associated with germline mutations of SMARCB1 or LZTR1.
|
30006736 |
2018 |
Schwannomatosis
|
0.800 |
GeneticVariation
|
disease |
BEFREE |
Epithelioid malignant peripheral nerve sheath tumor arising in a schwannoma, in a patient with "neuroblastoma-like" schwannomatosis and a novel germline SMARCB1 mutation.
|
22082606 |
2012 |
Schwannomatosis
|
0.800 |
GeneticVariation
|
disease |
BEFREE |
Genetic analysis of blood lymphocyte DNA identified a pathogenic variant in SMARCB1 confirming a diagnosis of schwannomatosis.
|
31240424 |
2019 |
Schwannomatosis
|
0.800 |
GeneticVariation
|
disease |
BEFREE |
Our findings identify LZTR1 as a gene predisposing to an autosomal dominant inherited disorder of multiple schwannomas in ∼80% of 22q-related schwannomatosis cases lacking mutation in SMARCB1.
|
24362817 |
2014 |
Schwannomatosis
|
0.800 |
GeneticVariation
|
disease |
BEFREE |
Exon scanning of all nine SMARCB1 exons in genomic DNA from our cohort of families meeting the criteria for 'definite' or 'presumptive' schwannomatosis previously revealed constitutional alterations in 13 of 19 families (68%).
|
22949514 |
2012 |
Schwannomatosis
|
0.800 |
GeneticVariation
|
disease |
BEFREE |
SMARCB1 or LZTR1 variants were identified in 5/40 (12.5%) and 13/40 (∼32%) patients in the schwannomatosis cohort.
|
29409008 |
2018 |
Schwannomatosis
|
0.800 |
GeneticVariation
|
disease |
BEFREE |
We analyzed the coding region of SMARCB1 by direct sequencing and multiplex ligation-dependent probe amplification (MLPA) in genomic DNA from 19 schwannomatosis kindreds.
|
18647326 |
2008 |
Schwannomatosis
|
0.800 |
GeneticVariation
|
disease |
BEFREE |
Recently, Bacci et al reported a germline SMARCB1 mutation associated with familial schwannomatosis and multiple meningiomas.
|
20472658 |
2010 |
Schwannomatosis
|
0.800 |
GeneticVariation
|
disease |
BEFREE |
This is the first report of a SMARCB1 germline mutation in a family with schwannomatosis characterized by the development of multiple meningiomas.
|
19582488 |
2010 |
Schwannomatosis
|
0.800 |
GeneticVariation
|
disease |
BEFREE |
We conclude that a germline SMARCB1 mutation may predispose to the development of pRCC1, thereby further widening the spectrum of tumors that can develop in the context of schwannomatosis.
|
26799435 |
2016 |
Schwannomatosis
|
0.800 |
AlteredExpression
|
disease |
BEFREE |
Herein, we characterize the genome of a schwannomatosis family without constitutional inactivation of the SMARCB1 gene to explore novel genomic alterations predisposing individuals to the familial disease.
|
24763291 |
2014 |
Schwannomatosis
|
0.800 |
Biomarker
|
disease |
BEFREE |
The genes that underlie each of the disorders are known: NF1 for neurofibromatosis type 1, NF2 for neurofibromatosis type 2, and INI1/SMARCB1 for schwannomatosis.
|
23622184 |
2013 |
Schwannomatosis
|
0.800 |
Biomarker
|
disease |
BEFREE |
However, more recently, inherited SWI/SNF-deficiency has been linked to several benign syndromic tumors including a subset of familial schwannomatosis (linked to SMARCB1) and multiple meningiomas (linked to SMARCE1) as well as others.
|
29397238 |
2018 |
Schwannomatosis
|
0.800 |
GeneticVariation
|
disease |
BEFREE |
SMARCB1/INI1 germline mutations contribute to 10% of sporadic schwannomatosis.
|
21255467 |
2011 |
Schwannomatosis
|
0.800 |
Biomarker
|
disease |
BEFREE |
Effectively, LZTR1 is mapped on 22q11.2 and centromeric to SMARCB1 also implicated in the determinism of schwannomatosis and NF2, responsible for neurofibromatosis type 2.
|
31128261 |
2019 |
Schwannomatosis
|
0.800 |
GeneticVariation
|
disease |
BEFREE |
We clinically and genetically characterized two families with schwannomatosis associated with SMARCB1 mutations.
|
22752724 |
2012 |
Schwannomatosis
|
0.800 |
Biomarker
|
disease |
BEFREE |
The proportion of cases caused by <i>de novo</i> pathogenic variants is approximately 30% for <i>LZTR1-</i>related schwannomatosis and 10% for <i>SMARCB1-</i>related schwannomatosis.Penetrance is less than 100%.
|
31329710 |
2018 |
Schwannomatosis
|
0.800 |
Biomarker
|
disease |
BEFREE |
Recently, SMARCB1 was reported to be a potential predisposing gene for multiple meningiomas in a family with schwannomatosis and multiple meningiomas.
|
20930055 |
2011 |
Schwannomatosis
|
0.800 |
GeneticVariation
|
disease |
BEFREE |
Constitutional mutations of SMARCB1 are responsible of schwannomatosis, an inherited tumor predisposition syndrome, characterized by the development of multiple schwannomas.
|
29230670 |
2018 |
Schwannomatosis
|
0.800 |
GeneticVariation
|
disease |
BEFREE |
In contrast to patients with rhabdoid tumours, which are due to complete loss-of-function SMARCB1 mutations, individuals with schwannomatosis harbour predominantly hypomorphic SMARCB1 mutations which give rise to the synthesis of mutant proteins with residual function that do not cause rhabdoid tumours.
|
27921248 |
2017 |
Schwannomatosis
|
0.800 |
Biomarker
|
disease |
BEFREE |
Premature termination of SMARCB1 translation may be followed by reinitiation in schwannomatosis-associated schwannomas, but results in absence of SMARCB1 expression in rhabdoid tumors.
|
24740647 |
2014 |
Schwannomatosis
|
0.800 |
GeneticVariation
|
disease |
BEFREE |
The structural and functional abnormalities of proteins caused by the mutations of the SMARCB1 gene may be the molecular basis for the pathogenesis of schwannomatosis in this family.
|
30576819 |
2019 |