Ontology highlight
ABSTRACT:
PROVIDER: PRJNA238936 | ENA |
REPOSITORIES: ENA
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Project description:Analysis of Huh-7 hepatocarcinoma cell line depleted of NDRG3 or HIF-1α under hypoxic condition. HIF-1α and NDRG3 have distinct functions in hypoxia responses. Results provide insight into molecular basis of HIF-independent signaling in the development and progression of hypoxic tumors Gene expression profiles of Huh-7 cells stably expressing NDRG3-shRNA or HIF-1α-shRNA under normoxia were compared to gene expression profiles of Huh-7 stable cells under hypoxia for 3, 6, 12 and 24 hours.
2015-07-24 | E-GEOD-59729 | biostudies-arrayexpress
Project description:Analysis of Huh-7 hepatocarcinoma cell line depleted of NDRG3 or HIF-1α under hypoxic condition. HIF-1α and NDRG3 have distinct functions in hypoxia responses. Results provide insight into molecular basis of HIF-independent signaling in the development and progression of hypoxic tumors
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Project description:Analysis of Huh-7 hepatocarcinoma cell line depleted of NDRG3 or HIF-1α under hypoxic condition. HIF-1α and NDRG3 have distinct functions in hypoxia responses. Results provide insight into molecular basis of HIF-independent signaling in the development and progression of hypoxic tumors
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Project description:Cancers with activating mutations of KRAS show a high prevalence and poor prognosis but remain intractable, requiring innovative strategies to overcome the poor targetability of KRAS. Here, we report that KRAS expression was post-translationally up-regulated through the deubiquitination of KRAS protein when the scaffolding function of NDRG3 (N-Myc downstream regulated gene 3) promoted specific interaction between KRAS and a deubiquitinating enzyme, USP9X. In KRAS-mutant pancreatic or lung cancer cells KRAS protein expression, downstream signaling, and cell growth were highly dependent on NDRG3. In conditional KrasG12D knock-in mouse models of pancreatic ductal adenocarcinoma (PDAC), Ndrg3 depletion abolished Kras protein expression in pancreas, and suppressed pancreatic intraepithelial neoplasia (PanIN) formation. Mechanistically, KRAS protein bound to the C-terminal serine/threonine-rich region of NDRG3, subsequently going through the deubiquitination by USP9X recruited to the complex. This interaction could be disrupted in a dominant-negative manner by a C-terminal NDRG3 fragment that can bind KRAS but is defective in USP9X binding, highly suppressing the KRAS protein expression and KRAS-driven cell growth. In summary, KRAS-driven cancer development critically depends on the deubiquitination of KRAS protein mediated by USP9X/NDRG3, and KRAS-addicted cancers could be effectively targeted by inhibiting the KRAS-NDRG3 interaction.
2025-05-07 | PXD052379 | Pride
Project description:Cancers with activating mutations of KRAS show a high prevalence and poor prognosis but remain intractable, requiring innovative strategies to overcome the poor targetability of KRAS. Here, we report that KRAS expression was post-translationally up-regulated through the deubiquitination of KRAS protein when the scaffolding function of NDRG3 (N-Myc downstream regulated gene 3) promoted specific interaction between KRAS and a deubiquitinating enzyme, USP9X. In KRAS-mutant pancreatic or lung cancer cells KRAS protein expression, downstream signaling, and cell growth were highly dependent on NDRG3. In conditional KrasG12D knock-in mouse models of pancreatic ductal adenocarcinoma (PDAC), Ndrg3 depletion abolished Kras protein expression in pancreas, and suppressed pancreatic intraepithelial neoplasia (PanIN) formation. Mechanistically, KRAS protein bound to the C-terminal serine/threonine-rich region of NDRG3, subsequently going through the deubiquitination by USP9X recruited to the complex. This interaction could be disrupted in a dominant-negative manner by a C-terminal NDRG3 fragment that can bind KRAS but is defective in USP9X binding, highly suppressing the KRAS protein expression and KRAS-driven cell growth. In summary, KRAS-driven cancer development critically depends on the deubiquitination of KRAS protein mediated by USP9X/NDRG3, and KRAS-addicted cancers could be effectively targeted by inhibiting the KRAS-NDRG3 interaction.
2025-05-06 | PXD051954 | Pride