A novel transmembrane glycoprotein cancer biomarker present in the X chromosome.
Cancer Genomics Proteomics
; 11(2): 81-92, 2014.
Article
em En
| MEDLINE
| ID: mdl-24709545
ABSTRACT
BACKGROUND:
The uncharacterized proteins of the human proteome offer an untapped potential for cancer biomarker discovery. Numerous predicted open reading frames (ORFs) are present in diverse chromosomes. The mRNA and protein expression data, as well as the mutational and variant information for these ORF proteins are available in the cancer-related bioinformatics databases. MATERIALS ANDMETHODS:
ORF proteins were mined using bioinformatics and proteomic tools to predict motifs and domains, and cancer relevance was established using cancer genome, transcriptome and proteome analysis tools.RESULTS:
A novel testis-restricted ORF protein present in chromosome X called CXorf66 was detected in the serum, plasma and neutrophils. This gene is termed secreted glycoprotein in chromosome X (SGPX). The SGPX gene is up-regulated in cancer of the brain, lung and in leukemia, and down-regulated in liver and prostate cancer. Brain cancer in female patients exhibited elevated copy numbers of the SGPX gene.CONCLUSION:
The SGPX gene is a putative novel cancer biomarker. Our results demonstrate the feasibility of mining the 'dark matter' of the cancer proteome for rapid cancer biomarker discovery.Palavras-chave
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Bases de dados:
MEDLINE
Assunto principal:
Glicoproteínas de Membrana
/
Cromossomos Humanos X
/
Neoplasias
Tipo de estudo:
Prognostic_studies
/
Systematic_reviews
Limite:
Humans
Idioma:
En
Revista:
Cancer Genomics Proteomics
Assunto da revista:
BIOQUIMICA
/
GENETICA MEDICA
/
NEOPLASIAS
Ano de publicação:
2014
Tipo de documento:
Article
País de afiliação:
Estados Unidos