Regulation of small GTPase activity by G1 cyclins
Monserrat Monserrat, Maria Ventura
MetadataShow full item record
Together with a cyclin-dependent kinase (CDK) partner G1 cyclins control cell cycle entry by phosphorylating a number of nuclear targets and releasing a transcriptional program at the end of G1 phase. Yeast G1 cyclins also operate on cytoplasmic targets involved in the polarization of the cytoskeleton
and vesicle trafficking. These processes are mainly controlled by the small GTPase Cdc42, and G1 cyclins regulate the activity of this and other small GTPases through the modulation of their regulators and effectors. This regulation is key for different developmental outcomes in unicellular organisms. In mammalian cells cytoplasmic G1 cyclin D1 has been shown to promote the activity of Rac1 and Ral GTPases and to block RhoA. Regulation of these small GTPases by G1 cyclins may constitute a mechanism to coordinate proliferation with cell migration and morphogenesis, important processes not only during normal development and organogenesis but also for tumor formation and metastasis. Here we briefly review the evidence supporting a role of G1 cyclins and CDKs as regulators of the activity of small GTPases, emphasizing their functional relevance both in budding yeast and in mammalian cells.
Is part ofSmall GTPases, 2019, vol. 10, núm. 1, p. 47-53
Showing items related by title, author, creator and subject.
Cemeli, Tània; Guasch Vallés, Marta; Nàger Grifo, Mireia; Felip, Isidre; Cambray Carner, Serafí; Santacana Espasa, Maria; Gatius Calderó, Sònia; Pedraza González, Neus; Dolcet Roca, Xavier; Ferrezuelo, Francisco; Schuhmacher, Alberto J.; Herreros Danés, Judit; Garí Marsol, Eloi (Wiley, 2019)Glioblastoma (GBM) is a highly invasive brain neoplasia with an elevated recurrence rate after surgical resection. The CyclinD1 (Ccnd1)/Cdk4-RB1 axis is frequently altered in GBM, leading to over-proliferation by RB1 ...
Cytoplasmic cyclin D1 regulates cell invasion and metastasis through the phosphorylation of paxillin Pérez Fusté, Noel; Fernández Hernández, Rita; Cemeli, Tània; Mirantes Barbeito, Cristina; Pedraza González, Neus; Rafel i Borrell, Marta; Torres Rosell, Jordi; Colomina i Gabarrella, Neus; Ferrezuelo, Francisco; Dolcet Roca, Xavier; Garí Marsol, Eloi (Nature Publishing Group, 2016)Cyclin D1 (Ccnd1) together with its binding partner Cdk4 act as a transcriptional regulator to control cell proliferation and migration, and abnormal Ccnd1 Cdk4 expression promotes tumour growth and metastasis. While ...
Pérez Fusté, Noel; Castelblanco Echavarría, Esmeralda; Felip, Isidre; Santacana Espasa, Maria; Fernández-Hernández, Rita; Gatius Calderó, Sònia; Pedraza González, Neus; Pallares, Judit; Cemeli, Tània; Valls Marsal, Joan; Tarres, Marc; Ferrezuelo, Francisco; Dolcet Roca, Xavier; Matias-Guiu, Xavier; Garí Marsol, Eloi (Impact Journals, 2016)Cyclin D1 (Ccnd1) is a proto-oncogen amplified in many different cancers and nuclear accumulation of Ccnd1 is a characteristic of tumor cells. Ccnd1 activates the transcription of a large set of genes involved in cell ...