Gene expression in mammalians is a very finely controlled mechanism, and bidirectional promoters can be considered one of the most compelling examples of the accuracy of genic expression coordination. Asrecently reported, a bidirectional promoter regulates the expression of the PDCD10 (whose mutations cause familial Cerebral Cavernous Malformations (CCMs) and SERPINI1 gene pair, even though they are non-homologous genes. The aim of this study was to identify any potential common roles of these two coregulated genes. An in-silico approach was used to identify functional correlations, using the BioGraph, IPA® and Cytoscape tools and the KEGG pathway database. The results obtained show that PDCD10 and SERPINI1 may co-regulate some cellular processes, particularly those related to focal adhesion maintenance. All common pathways identified for PDCD10 and SERPINI1 are closely associated with the pathogenic characteristics of CCMs; we thus hypothesize that genes involved in these networks may contribute to the development of CCMs.
POSSIBLE RELATED FUNCTIONS OF THE NON-HOMOLOGOUS CO-REGULATED GENE PAIR PDCD10 AND SERPINI1
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