Erik M Jancis

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Efficient genetic analysis of large exonic regions containing heterozygous mutations and common polymorphisms can be difficult. We have analyzed 30 patients for inherited susceptibility mutations (ISM) within exon 11 of the BRCA1 gene as part of an ongoing genetic epidemiological study of high-risk breast cancer (HRBC). A novel combination of restriction(More)
Rhodamine 123 is a fluorescent dye that localizes in mitochondria, is a substrate for the multidrug resistance pump, and is retained for long periods of time by carcinoma cells. 17 beta-Estradiol causes GH4C1 cells (rat pituitary tumor cells) to lose rhodamine 123 fluorescence faster than untreated cells. We found that estradiol induces accumulation of the(More)
Rhodamine 123 is a mitochondrial dye that is retained for prolonged periods by carcinoma cells. While investigating causes of retention of this dye, we found that 10 microM progesterone caused a rapid stimulation of efflux of rhodamine 123 within 15 min from KB V20C cells, which overexpress the multidrug resistance pump. Progesterone did not stimulate(More)
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