Expression of cdc25A and cdc25B proteins in thyroid neoplasms
نویسندگان
چکیده
منابع مشابه
Overexpression of CDC25A and CDC25B in head and neck cancers.
The deregulation of several cell cycle-related genes participates in neoplastic transformation. Cell cycle progression is driven by cyclin-dependent kinases, which are positively regulated by association with cyclins and negatively regulated by binding to inhibitory subunits. The activity of cyclin-dependent kinases is also regulated by the phosphorylation status, which is controlled by the ant...
متن کاملArylstibonic acids are potent and isoform-selective inhibitors of Cdc25a and Cdc25b phosphatases.
Arylstibonates structurally resemble phosphotyrosine side chains in proteins and here we addressed the ability of such compounds to act as inhibitors of a panel of mammalian tyrosine and dual-specificity phosphatases. Two arylstibonates both possessing a carboxylate side chain were identified as potent inhibitors of the protein tyrosine phosphatase PTP-ß. In addition, they inhibited the dual-sp...
متن کاملBeta-TrCP recognizes a previously undescribed nonphosphorylated destruction motif in Cdc25A and Cdc25B phosphatases.
Beta-TrCP, the F-box protein of the SCF(beta-TrCP) ubiquitin ligase (SCF, Skp1/Cul1/F-box protein), recognizes the doubly phosphorylated DSG motif (DpSGPhiXpS) in various SCF(beta-TrCP) target proteins. The Cdc25A phosphatase, a key cell-cycle regulator in vertebrate cells, undergoes a rapid ubiquitin-dependent degradation in response to genotoxic stress. Beta-TrCP binds to the DSG motif of hum...
متن کاملHuman Cdc14A Phosphatase Modulates the G2/M Transition through Cdc25A and Cdc25B*
The Cdc14 family of serine-threonine phosphatases antagonizes CDK activity by reversing CDK-dependent phosphorylation events. It is well established that the yeast members of this family bring about the M/G1 transition. Budding yeast Cdc14 is essential for CDK inactivation at the end of mitosis and fission yeast Cdc14 homologue Flp1/Clp1 down-regulates Cdc25 to ensure the inactivation of mitoti...
متن کاملExpression of thyroid-specific transcription factors TTF-1 and PAX-8 in human thyroid neoplasms.
TTF-1 and PAX-8 are tissue-specific transcription factors expressed in the thyroid follicular cells, contributing to the maintenance of the differentiated phenotype. In fact, it has been demonstrated that TTF-1 and PAX-8 are able to activate transcription from thyroglobulin and thyroperoxidase (TPO) promoters, the transcriptional activity of which is in vivo restricted only to the thyroid folli...
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ژورنال
عنوان ژورنال: British Journal of Cancer
سال: 2002
ISSN: 0007-0920,1532-1827
DOI: 10.1038/sj.bjc.6600364