Variable expression of Gorlin syndrome may reflect complexity of the signalling pathway
Sonja Levanat1, Mirjana Končar Mubrin2, Ivana Crnić1
1Department of Molecular Medicine, Ruđer Bošković Institute, Bijenička c. 54, 10000 Zagreb, Croatia, , , , , , HR.
Abstract:
Nevoid Basal Cell Carcinoma Syndrome (NBCCS) or Gorlin syndrome is an autosomal dominant disorder characterized by cancer predisposition and multiple developmental defects. Syndrome related disorders have been attributed to alterations of PTCH gene, which plays an important role in Shh signalling pathway. Unresolved complexities of the pathway impede understanding of mechanisms through which PTCH alterations lead to variable phenotype expression in Gorlin syndrome patients, while the role of chromosomal instability is not yet clear. To increase our understanding of NBCCS, every manifestation of the syndrome and associated genetic damage should be seriously considered. Therefore, several atypical NBCCS cases are presented in this paper.
Insights
Nevoid Basal Cell Carcinoma Syndrome (NBCCS), or Gorlin syndrome, involves cancer predisposition due to PTCH gene alterations. This paper examines atypical cases to better understand NBCCS manifestations and genetic damage.
Area of Science:
- Genetics
- Developmental Biology
- Oncology
Background:
- Nevoid Basal Cell Carcinoma Syndrome (NBCCS), also known as Gorlin syndrome, is an autosomal dominant disorder.
- It is characterized by a high predisposition to cancer and multiple developmental abnormalities.
- Alterations in the PTCH gene, crucial for the Shh signaling pathway, are linked to NBCCS, but pathway complexities and chromosomal instability's role remain unclear.
Purpose of the Study:
- To enhance the understanding of NBCCS.
- To investigate the mechanisms underlying variable phenotype expression in Gorlin syndrome patients.
- To explore the role of chromosomal instability in NBCCS.
Main Methods:
- Presentation and analysis of several atypical cases of NBCCS.
- Review of genetic alterations in the PTCH gene.
- Examination of Shh signaling pathway involvement.
Main Results:
- The presented atypical cases highlight the diverse clinical manifestations of NBCCS.
- These cases underscore the importance of considering all syndrome features and associated genetic damage.
- Further investigation is needed to clarify the role of chromosomal instability.
Conclusions:
- Understanding the complexities of the Shh pathway and PTCH gene alterations is crucial for managing Gorlin syndrome.
- Detailed analysis of atypical NBCCS cases contributes to a more comprehensive understanding of the syndrome.
- Further research is warranted to elucidate the complete genetic and molecular basis of NBCCS phenotypes.
Related Concept Videos
Notch Signaling Pathway
The Notch gene came into the limelight in 1914 after the discovery that its mutation in Drosophila melanogaster leads to a serrated (or "notched") wing margin phenotype. It was not...
TGF - β Signaling Pathway
Amplifying Signals via Enzymatic Cascade
Hedgehog Signaling Pathway
Interactions Between Signaling Pathways
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...
The JAK-STAT Signaling Pathway


