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The following list shows the information of planned papers to this special issue. All the papers submitted to Cancer Drug Resistance will go through a rigorous peer review. (Please note that the information below is provisional and may be subject to future change)
Type of paper: Review
Tentative Title: Molecular bases of Sorcin-dependent resistance to chemotherapeutic agents
Authors: Ilaria Genovese, Andrea Ilari, Theo Battista, Valerio Chiarini, Francesco Fazi, Annarita Fiorillo, Gianni Colotti
Affiliation: Italian National Research Council, Institute of Molecular Biology and Pathology; Sapienza University, Dept. Biochemical Sciences
Possible Abstract: Sorcin (SOluble Resistance-related Calcium binding proteIN) is a protein initially labelled “resistance-related”, since it is co-amplified with ABCB1 in multidrug (MD)-resistant cells. While for years Sorcin overproduction was believed to be a by-product of the coamplification of its gene with P-glycoprotein genes, many recent reports have demonstrated that Sorcin plays a role in multidrug resistance (MDR), and pointed at a possible role as an oncoprotein. Sorcin is one of the most highly expressed calcium-binding proteins in many tissues, is overexpressed in many human tumors and MD resistant cancers, and may represent a novel marker.
The level of Sorcin expression in leukemia patients inversely correlates with patients’ response to chemotherapies and overall prognosis. In parallel, Sorcin is highly expressed in chemoresistant cell lines and significantly up-regulated in chemotherapeutic drug-induced MD resistance cell lines over their parent cells. Sorcin overexpression by gene transfection increased drug resistance to a variety of chemotherapeutic agents in many cancer lines. On the other hand, several studies have demonstrated that inhibition of Sorcin expression by RNA interference led to reversal of drug resistance in many cell lines.
This review describes: i) the roles of Sorcin in the cell; ii) the studies showing Sorcin overexpression in tumors and cancer cells; iii) the studies showing the effects of Sorcin overexpression and silencing; iv) the molecular effects of Sorcin overexpression; v) the structural and genetic bases of Sorcin-dependent MDR.