2014
DOI: 10.1038/cddis.2013.526
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Galectin-1 overexpression promotes progression and chemoresistance to cisplatin in epithelial ovarian cancer

Abstract: This study was performed to investigate the role of galectin-1 (Gal-1) in epithelial ovarian cancer (EOC) progression and chemoresistance. Tissue samples from patients with EOC were used to examine the correlation between Gal-1 expression and clinical stage of EOC. The role of Gal-1 in EOC progression and chemoresistance was evaluated in vitro by siRNA-mediated knockdown of Gal-1 or lentivirus-mediated overexpression of Gal-1 in EOC cell lines. To elucidate the molecular mechanisms underlying Gal-1-mediated tu… Show more

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Cited by 87 publications
(95 citation statements)
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“…Furthermore, we also showed that down-regulation of galectin-1 suppressed migratory and invasive abilities of HuH-7 R cells, and restored sorafenib sensitivity. Several studies supported that galectin-1 associated with metastatic ability and effects of galectin-1 knockdown on drug sensitivity in different types of cancer (42)(43)(44). Taken together, our findings indicate that galectin-1 may be a component of the mechanism that promotes the progression of HCC and resistance to sorafenib.…”
Section: Discussionsupporting
confidence: 80%
“…Furthermore, we also showed that down-regulation of galectin-1 suppressed migratory and invasive abilities of HuH-7 R cells, and restored sorafenib sensitivity. Several studies supported that galectin-1 associated with metastatic ability and effects of galectin-1 knockdown on drug sensitivity in different types of cancer (42)(43)(44). Taken together, our findings indicate that galectin-1 may be a component of the mechanism that promotes the progression of HCC and resistance to sorafenib.…”
Section: Discussionsupporting
confidence: 80%
“…24,25 This seems contradictory, however, in lung and ovarian cancer, gal-1 overexpression appears to promote chemotherapy resistance and downregulation of gal-1 expression can sensitize tumor cells to platin-based chemotherapy. 14,26,27 In ovarian cancer, gal-1 could possibly mediate these effects through activation of the H-Ras/Raf-1/ERK pathway. 14 The group of Le Mercier et al suggested that increased gal-1 levels therefore seem to be representative of defense mechanisms against cytotoxic drugs, such as chemotherapy, and that gal-1 could consequently be of major importance in chemotherapy resistance.…”
Section: Discussionmentioning
confidence: 99%
“…14,26,27 In ovarian cancer, gal-1 could possibly mediate these effects through activation of the H-Ras/Raf-1/ERK pathway. 14 The group of Le Mercier et al suggested that increased gal-1 levels therefore seem to be representative of defense mechanisms against cytotoxic drugs, such as chemotherapy, and that gal-1 could consequently be of major importance in chemotherapy resistance. 24 Both our results in gal-1 (increase after chemotherapy and being an independent prognostic factor) support this theory.…”
Section: Discussionmentioning
confidence: 99%
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“…Given that Gal-1 could be such a strong potentiator of SPRED activity, it is interesting that typically higher Gal-1 levels are associated with a worse outcome in cancer (80,81). This would put the apparently small loss in K-ras inhibition, and also the increase in H-ras signaling due to SPRED loss-of-function mutations, in the spotlight of cancer progression.…”
Section: Discussionmentioning
confidence: 99%