Keywords: Doxorubicin, Membrane Protein, Phosphoprotein, Recombinant Interferon, Adenocarcinoma, Article, Cell Culture, Cell Cycle, Cell Division, Colon Tumor, Drug Effect, Drug Resistance, Drug Screening, Gene Expression, Genetics, Human, Metabolism, Pathology, Colonic Neoplasms, Drug Screening Assays, Antitumor, Interferon Type I, Membrane Glycoproteins, Support, Non-U S Gov, Tumor Cells,
Affiliations: Cattedra di Oncologia Medica, II Facoltà di Medicina, Università di Napoli, Naples, Italy
University of Tokyo, Tokyo, Japan
References: Not available.
Reversal of adriamycin resistance by recombinant α-interferon in multidrug-resistant human colon carcinoma LoVo-doxorubicin cells
Reversal of the drug resistance phenotype by the use of agents which induce cell differentiation offers an experimental approach to the study of chemoresistance. In numerous in vitro models, α-interferon (α-IFN) has been shown to induce phenotypical changes and to modulate the growth of cancer cells. The aim of the present study was to define the effect of α-IFN on the Adriamycin sensitivity of the human colon adenocarcinoma cell line, LoVo, and its Adriamycin-resistant variant, LoVo/ DX. Pretreatment of LoVo/DX cells with 500 units/ml of α-IFN increased sensitivity to low doses of Adriamycin. Similar treatment conditions did not change the sensitivity of the parental cell line. Following treatment of the LoVo/DX cells with α-IFN plus 100 ng/ml Adriamycin for 1 h, 30% of the cells survived compared to 100% of untreated cells. This effect was not related to changes in cell cycle kinetics induced by α-IFN treatment and did not result from variations in the expression of P-glycoprotein at the cell surface, as assessed by flow cytometric analysis using monoclonal antibody MRK16. Adriamycin accumulation was increased by α-IFN as assessed by spectrofluorometric analysis. Thus, the data suggest that in LoVo/DX cells, α-IFN increased Adriamycin cytotoxicity through modulation of the multidrug resistance phenotype.
Reversal of adriamycin resistance by recombinant α-interferon in multidrug-resistant human colon carcinoma LoVo-doxorubicin cells
Kim YH, Shin SW, Pellicano R, Fagoonee S, Choi IJ, Kim YI, Park B, Choi JM, Kim SG, Choi J, Park JY, Oh S, Yang HJ, Lim JH, Im JP, Kim JS, Jung HC, Ponzetto A, Figura N, Malfertheiner P, Choi IJ, Kook MC, Kim YI, Cho SJ, Lee JY, Kim CG, Park B, Nam BH, Bae SE, Choi KD, Choe J, Kim SO, Na HK, Choi JY, Ahn JY, Jung KW, Lee J, Kim DH, Chang HS, Song HJ, Lee GH, Jung HY, Seta T, Takahashi Y, Noguchi Y, Shikata S, Sakai T, Sakai K, Yamashita Y, Nakayama T, Leja M, Park JY, Murillo R, Liepniece-karele I, Isajevs S, Kikuste I, Rudzite D, Krike P, Parshutin S, Polaka I, Kirsners A, Santare D, Folkmanis V, Daugule I, Plummer M, Herrero R, Tsukamoto T, Nakagawa M, Kiriyama Y, Toyoda T, Cao X, Corral JE, Mera R, Dye CW, Morgan DR, Lee YC, Lin JT, Garcia Martin R, Matia Cubillo A, Lee SH, Park JM, Han YM, Ko WJ, Hahm KB, Leontiadis GI, Ford AC, Ichinose M, Sugano K, Jeong M, Park JM, Han YM, Park KY, Lee DH, Yoo JH, Cho JY, Hahm KB, Bang CS, Baik GH, Shin IS, Kim JB, Suk KT, Yoon JH, Kim YS, Kim DJ * Helicobacter pylori Eradication for Prevention of Metachronous Recurrence after Endoscopic Resection of Early Gastric Cancer(683 views) N Engl J Med (ISSN: 0028-4793, 0028-4793linking, 1533-4406electronic), 2015 Jun; 30642104201566393291: 749-756. Impact Factor:59.558 ViewExport to BibTeXExport to EndNote