G2Cdb::Allele report

Mutation type

Altered genes (1)

Gene Symbol Species Description
G00001409 PRKCE Homo sapiens protein kinase C, epsilon

Diseases (1)

Disease Description Nervous effect
D00000081 Thyroid cancer N

Literature (1)

Pubmed - other

  • Isozyme-specific abnormalities of PKC in thyroid cancer: evidence for post-transcriptional changes in PKC epsilon.

    Knauf JA, Ward LS, Nikiforov YE, Nikiforova M, Puxeddu E, Medvedovic M, Liron T, Mochly-Rosen D and Fagin JA

    Division of Endocrinology and Metabolism, University of Cincinnati College of Medicine, Cincinnati, Ohio 45267, USA.

    PKC isozymes are the major binding proteins for tumor-promoting phorbol esters, and PKC activity is abnormal in a number of different human cancers. Less is known about putative structural and functional changes of specific PKC isozymes in human neoplasms. A single-point mutation of PKCalpha at position 881 of the coding sequence has been observed in human pituitary adenomas and up to 50% of thyroid follicular neoplasms, and a rearrangement of PKCepsilon was reported in a thyroid follicular carcinoma cell line, suggesting that these signaling proteins may play a role in thyroid tumorigenesis. To explore this possibility, we examined thyroid neoplasms for mutations and changes in expression levels of PKCepsilon or alpha. None of the 57 follicular adenomas, 26 papillary carcinomas (PCs), 7 follicular carcinomas, or the anaplastic carcinoma harbored the PKCalpha 881A>G mutation. Moreover, none of 15 PCs, 10 follicular adenomas, or 6 follicular carcinomas showed evidence of mutations of PKCepsilon. However, 8 of 11 PCs had major isozyme-specific reductions of the PKCepsilon protein, which occurred through either translational or posttranslational mechanisms. These data indicate that post-transcriptional changes in PKCepsilon are highly prevalent in thyroid tumors and may play a significant role in their development.

    Funded by: NCI NIH HHS: CA50706, CA72597; NCRR NIH HHS: M01-RR08084; NIDDK NIH HHS: K01DK02781

    The Journal of clinical endocrinology and metabolism 2002;87;5;2150-9

© G2C 2014. The Genes to Cognition Programme received funding from The Wellcome Trust and the EU FP7 Framework Programmes:
EUROSPIN (FP7-HEALTH-241498), SynSys (FP7-HEALTH-242167) and GENCODYS (FP7-HEALTH-241995).

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