Splice variant PRKC-η-PrC is a novel biomarker of human prostate cancer

Yao, S., Ireland, S. J., Bee, A., Beesley, C., Forootan, S. S., Dodson, A., Dickinson, T., Gerard, P., Lian, L. Y., Risk, J. M., Smith, P., Malki, M. I., Ke, Y., Cooper, C. S. ORCID: https://orcid.org/0000-0003-2013-8042, Gosden, C. and Foster, C. S. (2012) Splice variant PRKC-η-PrC is a novel biomarker of human prostate cancer. British Journal of Cancer, 107 (2). pp. 388-399. ISSN 0007-0920

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Abstract

* Background: Previously, using gene-knockdown techniques together with genome expression array analysis, we showed the gene protein Kinase C (PKC)-zeta (PRKCZ) to mediate the malignant phenotype of human prostate cancer. However, according to NCBI, the gene has undergone several major iterations. Therefore, to understand the relationship between its structure and biological activities, we have analysed its expressed sequence in prostate cancer cell lines and tissues.  * Methods: Transcriptome-walking and targeted PCR were used to sequence the mRNA transcribed from PRKCZ. Hydropathy analysis was employed to analyse the hypothetical protein sequence subsequently translated and to identify an appropriate epitope to generate a specific monoclonal antibody.  * Results: A novel sequence was identified within the 3′-terminal domain of human PRKCZ that, in prostate cancer cell lines and tissues, is expressed during transcription and thereafter translated into protein (designated PKC-η-PrC) independent of conventional PKC-η-a. The monoclonal antibody detected expression of this 96 kD protein only within malignant prostatic epithelium. * Interpretation: Transcription and translation of this gene sequence, including previous intronic sequences, generates a novel specific biomarker of human prostate cancer. The presence of catalytic domains characteristic of classic PKC-Β and atypical PKC-l within PKC-η-PrC provides a potential mechanism for this PRKCZ variant to modulate the malignant prostatic phenotype out-with normal cell-regulatory control.

Item Type: Article
Uncontrolled Keywords: novel sequence,prkcz,prostate cancer,structural variant,oncology,cancer research,sdg 3 - good health and well-being ,/dk/atira/pure/subjectarea/asjc/2700/2730
Faculty \ School: Faculty of Science > School of Pharmacy
Faculty of Medicine and Health Sciences > Norwich Medical School
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Depositing User: LivePure Connector
Date Deposited: 18 Jul 2022 16:30
Last Modified: 12 Aug 2022 05:41
URI: https://ueaeprints.uea.ac.uk/id/eprint/86490
DOI: 10.1038/bjc.2012.162

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