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The effect of proton pump inhibitors (PPIs) on cancer risk has received much attention recently. Over the last two decades, we and others have disclosed that PPIs exerted anticancer effects. Telomerase reverse transcriptase (TERT) is essential for telomere maintenance. The activation of TERT is considered a crucial step in tumorigenesis; therefore, it is a potential therapeutic target against cancer. However, whether PPIs suppress gastric cancer by targeting TERT remains elusive. Our study demonstrated that PPZ treatment repressed TERT expression in gastric cancer cells via regulating TERT promoter activity by disturbing the interaction of STAT3 with the TERT gene. Additionally, PPZ led to chromatin remodeling within the TERT gene and resulted in a more compacted spatial conformation that is known to be associated with gene silencing. PPZ downregulated the TERT gene to inactivate the Wnt/β-catenin signaling pathway and reverse the EMT process, finally inhibiting gastric cancer metastasis both in vitro and in vivo. Our results suggest that PPIs may be potentially developed as effective as well as relatively safe and specific anticancer agents.
Pubmed ID: 30910586
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Non-profit plasmid repository dedicated to helping scientists around the world share high-quality plasmids. Facilitates archiving and distributing DNA-based research reagents and associated data to scientists worldwide. Repository contains over 65,000 plasmids, including special collections on CRISPR, fluorescent proteins, and ready-to-use viral preparations. There is no cost for scientists to deposit plasmids, which saves time and money associated with shipping plasmids themselves. All plasmids are fully sequenced for validation and sequencing data is openly available. We handle the appropriate Material Transfer Agreements (MTA) with institutions, facilitating open exchange and offering intellectual property and liability protection for depositing scientists. Furthermore, we curate free educational resources for the scientific community including a blog, eBooks, video protocols, and detailed molecular biology resources.
View all literature mentionsCommercial organization which provides reagents and services for molecular biology research. Its services include clone collections, microRNA solutions, genome editing, qPCR products, and fluorescent labeling and detection.
View all literature mentionsPrivately held company that develops and produces antibodies, ELISA kits, ChIP kits, proteomic kits, and other related reagents used to study cell signaling pathways that impact human health.
View all literature mentionsTHIS RESOURCE IS NO LONGER IN SERVICE. Documented on May 5,2022.Tool that predicts interactions between transcription factors and their regulated genes from binding motifs. Understanding vertebrate development requires unraveling the cis-regulatory architecture of gene regulation. PRISM provides accurate genome-wide computational predictions of transcription factor binding sites for the human and mouse genomes, and integrates the predictions with GREAT to provide functional biological context. Together, accurate computational binding site prediction and GREAT produce for each transcription factor: 1. putative binding sites, 2. putative target genes, 3. putative biological roles of the transcription factor, and 4. putative cis-regulatory elements through which the factor regulates each target in each functional role.
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