Journal
CANCERS
Volume 15, Issue 18, Pages -Publisher
MDPI
DOI: 10.3390/cancers15184665
Keywords
biomarker; endometrial cancer; proteomics; protein; prognosis; therapy
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The number of women diagnosed and dying from endometrial cancer continues to rise globally. This study identified new protein markers specific to endometrial cancer, which can improve the accuracy of diagnosis and provide potential targets for future treatment and research.
Simple Summary The number of women diagnosed and dying from endometrial cancer worldwide continues to rise. The reason for these sad statistics is because unbiased early detection methods are lacking. Many molecular markers have been used to diagnose and characterise the different forms of endometrial cancer. Although some protein markers are used in this way, they are not good enough to help those subsequently identified as having endometrial cancer, because many of the proteins that are used to diagnose endometrial cancer are also found in patients with other forms of cancer. In this study, we have looked for, and found, new protein markers that are unique to endometrial cancer that can be used to better distinguish patients with endometrial cancer from patients with other diseases and also provide novel research targets for future treatment and cure for the ever-increasing endometrial cancer populations.Abstract The present study was aimed at identifying novel proteins in endometrial cancer (EC), employing proteomic analysis of tissues obtained after surgery. A differential MS-based proteomic analysis was conducted from whole tissues dissected from biopsies from post-menopausal women, histologically confirmed as endometrial cancer (two endometrioid and two serous; n = 4) or normal atrophic endometrium (n = 4), providing 888 differentially expressed proteins with 246 of these previously documented elsewhere as expressed in EC and 372 proteins not previously demonstrated to be expressed in EC but associated with other types of cancer. Additionally, 33 proteins not recorded previously in PubMed as being expressed in any forms of cancer were also identified, with only 26 of these proteins having a publication associated with their expression patterns or putative functions. The putative functions of the 26 proteins (GRN, APP, HEXA, CST3, CAD, QARS, SIAE, WARS, MYH8, CLTB, GOLIM4, SCARB2, BOD1L1, C14orf142, C9orf142, CCDC13, CNPY4, FAM169A, HN1L, PIGT, PLCL1, PMFBP1, SARS2, SCPEP1, SLC25A24 and ZC3H4) in other tissues point towards and provide a basis for further investigation of these previously unrecognised novel EC proteins. The developmental biology, disease, extracellular matrix, homeostatic, immune, metabolic (both RNA and protein), programmed cell death, signal transduction, molecular transport, transcriptional networks and as yet uncharacterised pathways indicate that these proteins are potentially involved in endometrial carcinogenesis and thus may be important in EC diagnosis, prognostication and treatment and thus are worthy of further investigation.
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