MKP-1 suppresses PARP-1 degradation to mediate cisplatin resistance
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چکیده
منابع مشابه
1 Bim degradation contributes to cisplatin resistance
Cisplatin is the first l ine chemotherapy for the treatment of several cancers. However, the development of cisplatin resistance represents a major clinical problem and the mechanisms of acquired resistance are not fully understood. Here we show that degradation of the BH3only pro-apoptotic protein Bim plays an important role in cisplatin resistance in ovarian cancer. Specifically, we show that...
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Mitogen-activated protein kinase (MAPK) phosphatase-1 (MKP-1) is the MAPK phosphatase family member that negatively regulates MAPK signaling. Our previous study showed that MKP-1 is involved in cisplatin resistance, but the mechanism underlying its resistance is not understood. Here, we show that ERK2-mediated MKP-1 expression is critical for cisplatin resistance. Specifically, we showed that i...
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Non-small cell lung carcinoma patients are frequently treated with cisplatin (CDDP), most often yielding temporary clinical responses. Here, we show that PARP1 is highly expressed and constitutively hyperactivated in a majority of human CDDP-resistant cancer cells of distinct histologic origin. Cells manifesting elevated intracellular levels of poly(ADP-ribosyl)ated proteins (PAR(high)) respond...
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PURPOSE Activating extrinsic apoptotic pathways targeting death receptors (DR) using agonistic antibodies or TNF-related apoptosis-inducing ligand (TRAIL) is promising for cancer therapy. However, most pancreatic cancers are resistant to TRAIL therapy. The present studies aimed to identify combination therapies that enhance the efficacy of TRAIL therapy and to investigate the underlying mechani...
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Interactions with cofactors regulate transcriptional activity and also help HOX proteins to achieve the specificity required for transcriptional regulation of target genes. In this study, we describe a novel protein/protein interaction of HOXB7 with poly (ADP-ribose) polymerase-1 (PARP-1) that involves the homeodomain of HOXB7 and the first zinc finger domain of PARP-1. Upon binding to PARP-1, ...
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ژورنال
عنوان ژورنال: Oncogene
سال: 2017
ISSN: 0950-9232,1476-5594
DOI: 10.1038/onc.2017.197