Chronic stress stimulated HIF-AS3/HIF-1α loop in neoplastic cells and promoted lung cancer progression through macrophage inactivation [A549_xenograft]
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PROVIDER: PRJNA1212021 | ENA |
REPOSITORIES: ENA
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Project description:Chronic psychological stress is closely linked to malignant disorders, with novel modulators potentially mitigating tumor progression by regulating interactions between neoplastic cells and immune cells. This study identified lncRNA HIF1A-AS3 as a key driver of stress-induced lung cancer progression. Chronic stress models in mice with implanted lung cancer cells revealed significant upregulation of HIF1A-AS3 in stressed groups and human lung cancer tissues. Functional studies showed HIF1A-AS3 promotes cancer cell proliferation and invasion by activating HIF-1ɑ translation through interaction with YBX1, forming a positive feedback loop where HIF-1ɑ enhances HIF1A-AS3 transcription. Additionally, HIF1A-AS3 drove macrophage M2 polarization and reduced phagocytosis under hypoxia. Targeting the HIF1A-AS3/HIF-1ɑ loop effectively counteracted stress-induced lung cancer progression in vivo, highlighting its potential as a diagnostic and therapeutic target for stress-exacerbated lung cancer.
2025-03-26 | GSE287196 | GEO
Project description:Chronic psychological stress is closely linked to malignant disorders, with novel modulators potentially mitigating tumor progression by regulating interactions between neoplastic cells and immune cells. This study identified lncRNA HIF1A-AS3 as a key driver of stress-induced lung cancer progression. Chronic stress models in mice with implanted lung cancer cells revealed significant upregulation of HIF1A-AS3 in stressed groups and human lung cancer tissues. Functional studies showed HIF1A-AS3 promotes cancer cell proliferation and invasion by activating HIF-1ɑ translation through interaction with YBX1, forming a positive feedback loop where HIF-1ɑ enhances HIF1A-AS3 transcription. Additionally, HIF1A-AS3 drove macrophage M2 polarization and reduced phagocytosis under hypoxia. Targeting the HIF1A-AS3/HIF-1ɑ loop effectively counteracted stress-induced lung cancer progression in vivo, highlighting its potential as a diagnostic and therapeutic target for stress-exacerbated lung cancer.
2025-03-26 | GSE287282 | GEO
Project description:Chronic psychological stress is closely linked to malignant disorders, with novel modulators potentially mitigating tumor progression by regulating interactions between neoplastic cells and immune cells. This study identified lncRNA HIF1A-AS3 as a key driver of stress-induced lung cancer progression. Chronic stress models in mice with implanted lung cancer cells revealed significant upregulation of HIF1A-AS3 in stressed groups and human lung cancer tissues. Functional studies showed HIF1A-AS3 promotes cancer cell proliferation and invasion by activating HIF-1ɑ translation through interaction with YBX1, forming a positive feedback loop where HIF-1ɑ enhances HIF1A-AS3 transcription. Additionally, HIF1A-AS3 drove macrophage M2 polarization and reduced phagocytosis under hypoxia. Targeting the HIF1A-AS3/HIF-1ɑ loop effectively counteracted stress-induced lung cancer progression in vivo, highlighting its potential as a diagnostic and therapeutic target for stress-exacerbated lung cancer.
2025-03-26 | GSE287281 | GEO
Project description:Chronic stress stimulated HIF-AS3/HIF-1α loop in neoplastic cells and promoted lung cancer progression through macrophage inactivation
| PRJNA1211583 | ENA
Project description:Chronic stress stimulated HIF-AS3/HIF-1α loop in neoplastic cells and promoted lung cancer progression through macrophage inactivation [A549 and H1299]
| PRJNA1212023 | ENA
Project description:To investigate the detailed molecular mechanisms for the regulatory role of HIF-1α in colon, microarray gene expression analysis was performed on colon RNA isolated from 6- to 8-week-old Hif-1α+/+, Hif-1αLSL/LSL mice. Background & Aims: The progression and growth of solid tumors leads to a state where tumors outgrow their capacity for efficient oxygenation and nutrient uptake and an increase in tumor hypoxia. Tumor hypoxic response is mediated by hypoxia-inducible factor (HIF)-1a and HIF-2a. These transcription factors regulate a battery of genes that are critical for tumor oxygenation, tumor metabolism, and cell proliferation and survival. Therefore, inhibitors of HIF have been sought for as anti-neoplastic agents in several different kinds of cancers. Interestingly, in ischemic and inflammatory diseases of the intestine, activation of HIF-1a is beneficial, and can reduce intestinal inflammation. The efficacy of pharmacological agents that chronically activate HIF-1a are decreased due to the tumorigenic potential of HIF. However, recent advance in understanding HIF signaling have identified mechanisms, which could allow for isoform specific activators. Activation of HIF-2a increases colon carcinogenesis and progression in mouse models. However, the role of chronic HIF-1a activation is unclear in the progression in colon cancer. The present data demonstrates that activation of HIF-1a in epithelial cells does not increase colon carcinogens or progression in two mouse models of colon cancer, and provides the proof of principle that HIF-1a activation maybe safe as therapies for inflammatory bowel disease. Global gene expression profiling in colon RNAs isolated from 6- to 8-week-old Hif-1α+/+ (n=5, Shah 019) and Hif-1αLSL/LSL (n=5, Shah 020).
2014-05-14 | E-GEOD-55915 | 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 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 6, 12 and 24 hours.
2015-07-24 | E-GEOD-55212 | biostudies-arrayexpress
Project description:Mutational inactivation of VHL is the earliest genetic event in the majority of ccRCCs, leading to activation of the HIF-1α and HIF-2α transcription factors. While correlative studies of human ccRCCs and functional studies using human ccRCC cell lines have implicated HIF-1α as an inhibitor and HIF-2α as a promoter of aggressive tumour behaviours, their roles in tumour onset have not been functionally addressed. Using an autochthonous ccRCC model, we show genetically that Hif1a is necessary for tumour formation whereas Hif2a deletion has only minor effects on tumour initiation and growth. Both HIF-1α and HIF-2α are necessary for the clear cell phenotype. Transcriptomic and proteomic analyses revealed that HIF-1α regulates glycolysis while HIF-2α regulates genes associated with lipoprotein metabolism, ribosome biogenesis and E2F and MYC transcriptional activities. Deficiency of HIF-2α increased CD8+ T cell infiltration and activation. These studies reveal different functions of HIF-1α and HIF-2α in ccRCC. SIGNIFICANCE The roles of HIF-1α and HIF-2α in ccRCC pathogenesis remain unclear. Using a mouse genetic approach we show that HIF-1α but not HIF-2α is important for tumour formation, contrary to predictions from studies of human ccRCC. We show that HIF-1α and HIF-2α transcriptionally regulate different aspects of metabolism and identify HIF-2α as a suppressor of immune cell infiltration and activation.
2020-07-02 | PXD016630 | Pride
Project description:Hypoxia-inducible factor-1 (HIF-1) is a master regulator of glucose metabolism in cancer cells. Here, we demonstrate that a HIF-1α anti-sense lncRNA, HIFAL, is essential for maintaining and enhancing HIF-1α-mediated transactivation and glycolysis. Mechanistically, HIFAL recruits PHD3 to PKM2 to induce its prolyl hydroxylation and introduces the PKM2/PHD3 complex into the nucleus via binding with hnRNPF to enhance HIF-1α transactivation. Reciprocally, HIF-1α induces HIFAL transcription, which forms a positive feed-forward loop to maintain the transactivation activity of HIF-1α. Clinically, high HIFAL expression is associated with aggressive breast cancer phenotype and poor patient outcome. Furthermore, HIFAL overexpression promotes tumor growth in vivo, while targeting both HIFAL and HIF-1α significantly rescues their effect on cancer growth. Overall, our results indicate a critical regulatory role of HIFAL in HIF-1α-driven transactivation and glycolysis, identifying HIFAL as a therapeutic target for cancer treatment.
2021-01-19 | GSE159490 | GEO
Project description:To investigate the detailed molecular mechanisms for the regulatory role of HIF-1α in colon, microarray gene expression analysis was performed on colon RNA isolated from 6- to 8-week-old Hif-1α+/+, Hif-1αLSL/LSL mice. Background & Aims: The progression and growth of solid tumors leads to a state where tumors outgrow their capacity for efficient oxygenation and nutrient uptake and an increase in tumor hypoxia. Tumor hypoxic response is mediated by hypoxia-inducible factor (HIF)-1a and HIF-2a. These transcription factors regulate a battery of genes that are critical for tumor oxygenation, tumor metabolism, and cell proliferation and survival. Therefore, inhibitors of HIF have been sought for as anti-neoplastic agents in several different kinds of cancers. Interestingly, in ischemic and inflammatory diseases of the intestine, activation of HIF-1a is beneficial, and can reduce intestinal inflammation. The efficacy of pharmacological agents that chronically activate HIF-1a are decreased due to the tumorigenic potential of HIF. However, recent advance in understanding HIF signaling have identified mechanisms, which could allow for isoform specific activators. Activation of HIF-2a increases colon carcinogenesis and progression in mouse models. However, the role of chronic HIF-1a activation is unclear in the progression in colon cancer. The present data demonstrates that activation of HIF-1a in epithelial cells does not increase colon carcinogens or progression in two mouse models of colon cancer, and provides the proof of principle that HIF-1a activation maybe safe as therapies for inflammatory bowel disease.
2014-05-14 | GSE55915 | GEO