The double face of Morgana in tumorigenesis
| Autor: | Laura Seclì, Federica Fusella, Mara Brancaccio, Elena Busso, Stefania Rocca |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Genome instability
Cytoskeleton organization Carcinogenesis Context (language use) Review Biology medicine.disease_cause Proto-Oncogene Mas ROCK medicine Animals Humans Centrosome duplication Morgana atypical chronic myeloid leukemia chemoresistance chord containing protein Kinase activity Genetics Kinase Phosphate-Binding Proteins Cell biology Oncology Centrosome Carrier Proteins |
| Zdroj: | Oncotarget |
| Popis: | Morgana is a chaperone protein able to bind to ROCK I and II and to inhibit their kinase activity. Rho kinases are multifunctional proteins involved in different cellular processes, including cytoskeleton organization, centrosome duplication, cell survival and proliferation. In human cancer samples Morgana appears to be either downregulated or overexpressed, and experimental evidence indicate that Morgana behaves both as an oncosuppressor and as a proto-oncogene. Our most recent findings demonstrated that if on the one hand low Morgana expression levels, by inducing ROCK II hyperactivation, cause centrosome overduplication and genomic instability, on the other hand, Morgana overexpression induces tumor cell survival and chemoresistance through the ROCK I-PTEN-AKT axis. Therefore, Morgana belongs to a new class of proteins, displaying both oncogenic and oncosuppressor features, depending on the specific cellular context. |
| Databáze: | OpenAIRE |
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