PMID: 9433477Jan 20, 1998Paper

Differential expression of human ferritin H chain gene in immortal human breast epithelial MCF-10F cells

Molecular Carcinogenesis
N A HiggyJ Russo

Abstract

Subtractive hybridization was used to isolate genes expressed uniquely in the immortalized human breast epithelial cell (HBEC) line MCF-10F and not in the mortal HBEC line S-130, from which MCF-10F cells were derived. We identified a 233-bp cDNA that was expressed in MCF-10F cells and not in their mortal counterpart S-130 cells. Sequence comparison with the GenBank database revealed that the cDNA was identical to the gene encoding human ferritin heavy H chain. Northern blot analysis using the isolated cDNA as a probe showed a differentially expressed 1.1-kb transcript of ferritin H in total RNA from the immortal MCF-10F cells, MCF-10F cells treated with the chemical carcinogens 7,12-dimethylbenz[a]anthracene and benzo[a]pyrene, and the breast cancer cell lines MCF-7, HBL-100, T-47D, and BT-20. No ferritin H transcript was detected in the mortal line S-130 or in other primary HBEC cultures. Increased levels of mRNA transcript signals were also detected in total RNA from breast cancer tissue samples. Tissue with ductal hyperplasia had higher expression levels than normal adjacent mammary tissue. In situ hybridization showed high levels of ferritin H transcript in mammary tissue areas with ductal hyperplasia, carcinoma in situ, an...Continue Reading

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Citations

Jun 14, 2012·Biometals : an International Journal on the Role of Metal Ions in Biology, Biochemistry, and Medicine·Jing WuKrystyna Frenkel
Apr 15, 2010·Breast Cancer Research and Treatment·Svitlana I ShpylevaIgor P Pogribny
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