The Patched (PTCH) gene, which is mutated in naevoid basal cell carcinoma syndrome (NBCCS or Gorlin syndrome) lies in this interval and all MSSE families have been shown to share a common haplotype at three novel intragenic PTCH polymorphisms.
The possibility of Gorlin syndrome in this family was excluded by both the absence of any clinical and radiological features and the lack of mutation in PTCH1.
The results indicate that (1) LOH at both PTCH gene and STK11 gene is relatively frequent in cellular fibromas; (2) approximately a quarter of luteinized thecomas exhibited LOH of the PTCH gene; in both neoplasms, cellular fibromas and luteinized thecomas, LOH may play a role in their pathogenesis; and (3) sporadic cellular fibromas may arise through similar genetic pathways as cases of Gorlin syndrome.
These data indicate that the PTCH1(+/-) genotype of healthy NBCCS fibroblasts results in phenotypic traits highly reminiscent of those of BCC associated fibroblasts, a clue to the yet mysterious proneness to non photo-exposed BCCs in NBCCS patients.
We used denaturing high performance liquid chromatography (DHPLC) to screen for PTCH mutations in 28 NBCCS cases, most of whom had been previously evaluated by single stranded conformation polymorphism analysis but found to be negative.
The nevoid basal cell carcinoma syndrome (NBCCS), which is caused by mutations of PTCH gene on chromosome 9q22, accounts for about 2% of all medulloblastomas.
Here we report a patient with a novel, isoform 1b specific mutation in PTCH1 and thereby distinguish PTCH1 isoform 1b as the major transcript in the development of BCNS.
We report the clinical manifestations of a Taiwanese family with NBCCS and mutation analysis of the PTCH gene from peripheral blood, OKC tissues, and cyst content.
Genetic analysis of the PTCH gene is essential for the early, definitive diagnosis of NBCCS, especially before the expression of clinical manifestations is complete.
In order to examine the phenotypic variability in NBCCS and to highlight functionally important domains of the PTCH protein, we have now screened 71 unrelated NBCCS individuals for mutations in the PTCH exons.
A novel germ-line mutation of PTCH1 gene in a Japanese family of nevoid basal cell carcinoma syndrome: are the palmoplantar pits associated with true basal cell carcinoma?
The Hh signaling pathway is involved in the pathogenesis of several tumors, including nevoid basal cell carcinoma syndrome that is associated with an alteration of the patched-1 (PTCH1) gene.
In order to examine the phenotypic variability in NBCCS and to highlight functionally important domains of the PTCH protein, we have now screened 71 unrelated NBCCS individuals for mutations in the PTCH exons.