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Hereditary desmoid disease.
2006-08-01
Rodney J Scott
 
Affiliation
School of Biomedical Sciences, Faculty of Health, University of Newcastle, Australia
Identity
Name
Hereditary desmoid disease.
Alias
Familial infiltrative fibromatosis.
Inheritance
Autosomal dominant disorder; frequency is less than 1\/10
5 newborns; unknown new mutation rate; variable disease expression; penetrance is unknown. Hereditary desmoid disease occurs primarily in association with familial adenomatous polyposis.
Omim
135290
Mesh
C535944
Orphanet
873 Desmoid tumor
Umls
-
Clinics
Phenotype and clinics
Normally, presence of multiple desmoid tumours especially in the mesentery. Desmoid tumours can develop elsewhere and are often initiated after trauma. Micro-adenomas in the lower gastrointestinal tract, often not reported. Upper GI polyps are often observed.
Abdominal CT scan displaying a large desmoid tumour (red arrows) interfering with a major vessel (yellow arrow) and the small intestine (green arrows).
Neoplastic risk
Strictly speaking desmoid tumours are not neoplastic but they are locally invasive and highly destructive. Often associated with extreme pain and respond poorly to treatment. Usually they occur in association with familial adenomatous polyposis. Desmoid tumours usually occur in the abdominal cavity and have been associated with traumatic events that include surgery and childbirth. They have been reported at other anatomical sites.
Treatment
There is no defined treatment that is affective in all cases. Nevertheless, the use of non-steroidal anti-inflammatory drugs (NSAIDs) in combination with tamoxifen has been suggested but there is no firm evidence to indicate its benefit.
Evolution
Disease development involves the loss of APC and appears to be associated with 3 APC germline mutations. Little is known about downstream events in the evolution of the disease.
Prognosis
Patients with hereditary desmoid disease fall into three categories; those that develop disease, which spontaneously regresses (very rarely reported); patients with stabile disease that does not progress: and patients with severe progressive and fatal disease.
Genes involved and Proteins
Alias
Deleted in polyposis 2.5 (DP2.5)
Description
Tumour suppressor gene with multiple functions; Normal APC gene product interacts with adherens junction proteins
a-catenin
and
b-catenin
.
Expression
APC expression is present in all cells but at varying levels.
Localisation
Mainly in the cytoplasm but there is a nuclear localization signal and it is observed in the nucleus.
Function
Primary function appears to be the regulation of b-catenin in association with GSK-b via the ubiquitin degradation pathway. It has also been shown to help orientate the mitotic spindle during cell replication.
Homology
Partial homology with , where it is about 76% homologous in the first half of the protein.
Germinal
Many mutations have been described in the APC gene, most of which result in premature termination codons. With respect to familial desmoid disease two sites have been described that occur in the sparsely mutated 3- region of the gene. Germline mutations at codon 1924 and 1860 have been reported in rare families with desmoid disease.
Somatic
There appears to be a mutation cluster region in the APC gene that is centered around codon 1309. These mutations have only been described in colorectal tumours and there is little information with respect to desmoid disease.
Article Bibliography
Pubmed ID
Last Year
Title
Authors
8940264
1996
Hereditary desmoid disease due to a frameshift mutation at codon 1924 of the APC gene.
Eccles DM et al
9065401
1997
Constitutive transcriptional activation by a beta-catenin-Tcf complex in APC-/- colon carcinoma.
Korinek V et al
10527597
1999
Desmoid tumour: a pleomorphic lesion.
Kulaylat MN et al
1338904
1992
Somatic mutations of the APC gene in colorectal tumors: mutation cluster region in the APC gene.
Miyoshi Y et al
8968744
1996
Familial infiltrative fibromatosis (desmoid tumours) (MIM135290) caused by a recurrent 3' APC gene mutation.
Scott RJ et al
12970569
2003
Orientation of asymmetric stem cell division by the APC tumor suppressor and centrosome.
Yamashita YM et al
External Links
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MeSH
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