Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0476089 (endometrial cancer)
 11,379 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Endometrial epithelial cells express MUC1 with increased abundance in the secretory phase of the menstrual cycle, when embryo implantation occurs. MUC1 is associated with the apical surface of epithelial cells and is also secreted, being detectable in uterine fluid at elevated levels in the implantation phase. However, its physiological role is uncertain; it may either inhibit intercellular adhesion by steric hindrance or carry carbohydrate recognition structures capable of mediating cell-cell interaction. Here we show that endometrial epithelium expresses both Sialyl-Lewis x (SLex) and Sialyl-Lewis a (SLea), with a distribution and pattern of menstrual cycle regulation similar to that of MUC1. Using Western blotting and double determinant ELISA of uterine flushings, we demonstrate that SLex is associated with MUC1 core protein. The endometrial carcinoma cell lines HEC1A and HEC1B are shown to express MUC1 in a mosaic pattern, while three other cell lines express much lower amounts. HEC1A expresses both SLex and SLea while HEC1B expresses SLea only. Immunoprecipitation has been used to demonstrate that SLea is associated with MUC1 in HEC1B cells, and both SLex and SLea are associated with MUC1 in HEC1A cells.
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PMID:Sialyl-Lewis x and Sialyl-Lewis a are associated with MUC1 in human endometrium. 891 4

Eosinophilic cell change is one of the most common endometrial metaplasias occurring in both non-neoplastic and neoplastic endometrium. Its phenotypic characteristics have not still been fully clarified. We examined expression of mucin core proteins in a total of 95 distinct histological areas of endometrial specimens comprising 39 benign nonhyperplastic endometria, 14 endometrial hyperplasias, and 42 endometrial carcinomas. Eosinophilic cell change was very common, seen in 27 endometrial areas (28%); mucinous metaplasia (28%) and ciliated (tubal) change (31%), were also frequently seen. Eosinophilic cell change was more frequently seen in endometrial hyperplasia and carcinoma than in benign nonhyperplastic endometrium. In endometrial carcinomas, eosinophilic cell change was frequently associated with mucinous metaplasia and the two types of metaplastic cells were occasionally intermingled in a single neoplastic gland. A total of 23 (85%) of 27 eosinophilic cell changes and 18 (72%) of 25 mucinous metaplasias showed MUC5AC expression. These frequencies of MUC5AC expression did not differ significantly among benign non-hyperplastic endometrium, endometrial hyperplasia and endometrial carcinoma. Totally, 15 (52%) of 29 ciliated (tubal) changes and two (100%) of two surface syncytial changes, which showed cytoplasmic eosinophilia at least focally, also expressed MUC5AC. Most of the endometrial changes characterized by cytoplasmic eosinophilia may be subtypes of immature mucinous metaplasia which express a mucin core protein but are not fully glycosylated.
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PMID:Eosinophilic cell change of the endometrium: a possible relationship to mucinous differentiation. 1580 81

CA153 was originally discovered as a tumor antigen recognized by two monoclonal antibodies DF3 and 115D8 simultaneously. Subsequent studies showed that DF3 recognizes the core protein of mucin1 (MUC1 or CD227) whereas 115D8 recognizes part of the glycan chains on MUC1. MUC1 is a highly glycosylated transmembrane protein expressed on the mucosal surfaces of epithelial cells in lung, breast, stomach, gallbladder, lymph node, colon, rectum, and pancreas. The increased serum levels of CA153 have been established as a biomarker for breast cancer diagnosis since 1980s. However, it is unknown if elevated serum CA153 levels were also associated with other cancers and noncancer diseases. In current study, a total of 19,789 clinical lab test results of serum CA153 levels from healthy individuals and patients with 30 different types of diseases during the past 5 years were retrieved and analyzed. According to the mean (SD), median, and p (-Log10p) values calculated, we found that patients suffering lung, breast, ovarian cancers, nephrotic syndrome, type 2 diabetes, endometrial cancer, coronary heart disease, cervical cancer, uremia, and other 12 diseases plus healthy controls >65 years old had significantly (p<0.05, -Log10p>1.30) increased median serum CA153 levels compared to that of healthy controls. Moreover, patients with lymphoma had the highest mean and the biggest SD value for serum CA153. Based on these data and the documented evidence, we proposed that the increased serum CA153 levels might be associated with pathological leakage of the epithelial cell product into the blood circulation in addition to the decreased CA153 clearance rate.
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PMID:Serum CA153 as biomarker for cancer and noncancer diseases. 3090 56

Endometrial cancer is one of the most frequent gynecological malignancies present in more than 95 % of all uterine cancers. In spite of that, screening of such disease is not commonly performed in clinical practice due to enormous costs and relatively low sensitivity. Therefore, developing an effective screening test to diagnose endometrial cancer at early stages is of great importance for the clinical area of investigation. In this work, we applied urinary proteomics (i.e., bottom-up proteomic approach followed by nano HPLC-ESI-MS/MS) in patients with endometrial cancer, with respect to find proteins aimed for the early diagnostics and screening. According to the results, the significant semi-quantitative changes were observed in urinary proteome of treated patients. The proteins that may be pivotal in pathogenesis of endometrial cancer, like cadherin-1 (CDH1), vitronectin (VTN) and basement membrane specific-heparan sulphate proteoglycan core protein (HSPG2) were down-regulated, when compared to the control group. Ultimately, it can be stated that urinary proteomics has a potential for the searching of cancer protein biomarkers based on their altered concentration.
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PMID:Differential Urinary Proteomic Analysis of Endometrial Cancer. 3211 80