Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0268596 (EMA)
 2,520 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

A new epithelial ovarian carcinoma cell line (UCI 101) has been established from the ascitic fluids and solid tumor of a patient with progressive papillary adenocarcinoma of the ovary shown previously to be refractory to combination chemotherapy consisting of cyclophosphamide, Adriamycin, and cisplatin as well as single-agent chemotherapy of taxol and high-dose cisplatin. The UCI 101 cell line grows well with an in vitro doubling time of 24 hr. The cell line expresses the B 72.3 (Tag 72), CA125, MH99 (ESA), and E29 (EMA) cell surface antigens and AE1/AE3 cytokeratins. This cell line overexpresses (as determined by immunocytochemistry) both p-glycoprotein and the epidermal growth factor receptor. The in vitro drug response to single agents including Adriamycin, cisplatin, dequalinium chloride, etoposide, 5-fluorouracil, taxol, and tumor necrosis factor was examined. Intraperitoneal transplantation of the cells into athymic mice resulted in foci of tumor on all peritoneal surfaces including the viscera and diaphragm ultimately leading to solid bulky disease with massive production of ascites. High levels of CA125 (> 500 units/ml) were detected in the serum of tumor-bearing mice. Cytogenetic analysis of cultured cells shows several marker chromosomes containing deletions, duplications, and translocations. Cytologic and histologic evaluation of the xenograft revealed morphological characteristics identical to those of the original tumor.
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PMID:Characterization of a human ovarian carcinoma cell line: UCI 101. 842 92

A novel human mammary epithelial cell line, HME348, was established from benign breast tissue from a 44-year-old germ-line BRCA2 mutation carrier with a history of stage 1 breast cancer. Mutation analysis showed that the patient had a known 6872del4 BRCA2 heterozygous mutation. The human mammary epithelial cells passaged in culture exhibited cellular replicative aging as evidenced by telomere shortening, lack of telomerase activity, and senescence. Ectopic expression of telomerase (hTERT) reconstituted telomerase activity in these cells and led to the immortalization of the cells. When grown on glass, the majority of immortalized HME348 cells expressed ESA and p63 with a small population also expressing EMA. In three-dimensional Matrigel culture, HME348 cells formed complex branching acini structures that expressed luminal (EMA, CK18) and myoepithelial (p63, CALLA, CK14) markers. Three clones derived from this culture were also p63(+)/ESA(+)/EMA(+/-) on glass but formed similar acinar structures with both luminal and myoepithelial cell differentiation in Matrigel confirming the mammary progenitor nature of these cells. Additionally, the experimentally immortalized HME348 cells formed acini in cleared mammary fat pads in vivo. As this is the first report establishing and characterizing a benign human mammary epithelial cell line derived from a BRCA2 patient without the use of viral oncogenes, these cells may be useful for the study of BRCA2 function in breast morphogenesis and carcinogenesis.
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PMID:Telomerase immortalization of human mammary epithelial cells derived from a BRCA2 mutation carrier. 1654 10

We report a clinic case of patient in whom angiosarcoma of the heart presents as bilateral pulmonary nodular infiltrates. The cardiac tumor was clinically silent, the electrocardiogram was normal and the cough was the only symptom. Chest CT scan (Fig. 1) showed bilateral diffuse nodular infiltrates ranging. Clinical clues, the results of laboratory tests and all of the cultures obtained excluded an infectious etiologies; the findings of CT-guided needle biopsy was inconclusive for a definitive diagnosis. Thus, the patient was scheduled for a thoracoscopic biopsy. Surprisingly, the pre-operatory echocardiogram showed a soft tissue mass fixed to the posterior wall of the right atrium. On retrospective reviewing of chest CT scan, a tumor was evident in the right atrium, but it was missed initially. In theory, the lung lesions attract the attention of the observer who had not taken into account anything else as to say: "the brain knows what the eyes want". The diagnosis ofpulmonary metastases was obtained by means ofpleural biopsy during right thoracoscopy. Immunoistochemical staining revealed a CK-, CK7-, EMA-, ESA-, CEA-, TTF1-, Vimentina+, CD31+, CD117+ lesion. Because at the time of diagnosis our patient already had lung metastases, he underwent chemotherapy.
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PMID:Bilateral lung lesions: when the eyes deceive the brain! 2246 25