title: Proteomic phenotyping: metastatic and invasive breast cancer.
abstract: The adriamycin resistant breast cancer cell line (MCF-7/ADR) is a subject of ongoing debate concerning its origin and or source. Previous studies in our laboratory showed that MCF-7/ADR has a unique cytosolic protein expression pattern when compared to that of the parental MCF-7 cell line and other drug resistant MCF-7 cell lines. Protein expression patterns obtained using two-dimensional gel electrophoresis and mass spectrometry indicated that this MCF-7/ADR cell line shares some similarities with the metastatic breast cancer cell lines MDA-MB. Further comparisons with available two-dimensional gel electrophoresis maps in the literature indicate that MCF-7/ADR has a protein expression signature even closer to of the ductal infiltrating breast carcinoma cell line 8701. These observations suggest that MCF-7/ADR cells might have originated in a selection of ductal infiltrating carcinoma cells, which were present among the original MCF-7 cell population. These ductal infiltrating carcinoma cells may possess an intrinsic adriamycin resistance phenotype.
authors.affiliation: Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland, MD 20742, USA. yhathout@cnmcresearch.org
authors.forename: Yetrib
authors.initials: Y
authors.lastname: Hathout
authors.forename: Marion L
authors.initials: ML
authors.lastname: Gehrmann
authors.forename: Andrei
authors.initials: A
authors.lastname: Chertov
authors.forename: Catherine
authors.initials: C
authors.lastname: Fenselau
mesh_terms: D000903:Antibiotics, Antineoplastic / Q000494:pharmacology*; D001943:Breast Neoplasms / Q000235:genetics* / Q000473:pathology*; D044584:Carcinoma, Ductal / Q000235:genetics* / Q000473:pathology*; D004317:Doxorubicin / Q000494:pharmacology*; D019008:Drug Resistance, Neoplasm / Q000235:genetics; D015180:Electrophoresis, Gel, Two-Dimensional; D005260:Female; D006801:Humans; D009361:Neoplasm Invasiveness; D009362:Neoplasm Metastasis; D010641:Phenotype; D040901:Proteomics; D014407:Tumor Cells, Cultured
chemical_list: D000903:Antibiotics, Antineoplastic; D004317:Doxorubicin