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ovarian mortalin

Yingying Hu, Ling Yang, Yujie Yang, Yanyan Han, Yongbo Wang, Wen Liu, Ji Zuo
Mortalin is frequently overexpressed in human malignancies. Previous studies have suggested that mortalin contributes to ovarian cancer development and progression, but further investigation is warranted. The aim of this study is to elucidate the mechanism of mortalin in ovarian cancer development and progression. In this study, lentivirus-delivered mortalin short hairpin RNA (shRNA) was used to knockdown mortalin expression in A2780 and A2780/cis ovarian cancer cell lines, and lentiviral mortalin-pLVX-AcGFP was used to generate mortalin-overexpressing cell lines...
November 2016: Journal of Cellular and Molecular Medicine
Doris Mangiaracina Benbrook, Baskar Nammalwar, Andrew Long, Hiroyuki Matsumoto, Anil Singh, Richard A Bunce, K Darrell Berlin
SHetA2 is a small molecule flexible heteroarotinoid (Flex-Het) with promising cancer prevention and therapeutic activity. Extensive preclinical testing documented lack of SHetA2 toxicity at doses 25 to 150 fold above effective doses. Knowledge of the SHetA2 molecular target(s) that mediate(s) the mechanism of SHetA2 action is critical to appropriate design of clinical trials and improved analogs. The aim of this study was to develop a method to identify SHetA2 binding proteins in cancer cells. A known metabolite of SHetA2 that has a hydroxyl group available for attachment was synthesized and conjugated to a linker for attachment to a magnetic microsphere...
June 2014: Investigational New Drugs
Ling Yang, Hongyan Li, Yizhou Jiang, Ji Zuo, Wen Liu
The heat shock protein mortalin is frequently overexpressed in human malignancies. In this study, an assessment of mortalin expression using ovarian cancer tissue microarrays suggested that mortalin overexpression might be related to drug resistance. Using a short hairpin (sh) RNA approach, we evaluated the effect of reducing mortalin expression in vitro and in vivo. The results of our study show that elevated levels of mortalin expression increase cancer cell resistance to cisplatin-induced cytotoxicity and identify mortalin as a potential therapeutic target for improved treatment of drug-resistant ovarian cancer...
August 9, 2013: Cancer Letters
Christina Schusdziarra, Marta Blamowska, Abdussalam Azem, Kai Hell
Loss of expression of the methylation-controlled J gene, MCJ (DNAJC15), is observed in cases of several tumors and plays a crucial role in the chemoresistance of ovarian cancer cells. Aside from the pathophysiological effects, almost nothing is known about the cellular function of MCJ. Here, we provide the first evidence that MCJ acts in the biogenesis of mitochondria. Our results demonstrate that MCJ is located in mitochondria. It is anchored in the mitochondrial inner membrane with the C-terminal J domain facing the matrix space...
April 1, 2013: Human Molecular Genetics
Lucia Cicchillitti, Michela Di Michele, Andrea Urbani, Cristiano Ferlini, Maria Benedetta Donat, Giovanni Scambia, Domenico Rotilio
Epithelial ovarian cancer is the leading cause of gynecological cancer mortality. Despite good response to surgery and initial chemotherapy, chemoresistance occurrence represents a major obstacle to a successful therapy. To better understand biological mechanisms at the basis of paclitaxel resistance, a comparative proteomic approach based on DIGE coupled with mass spectrometry (MALDI-TOF and LC-MS/MS) was applied to the human epithelial ovarian cancer cell lines A2780 and its paclitaxel resistant counterpart A2780TC1...
April 2009: Journal of Proteome Research
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