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Literature DB >> 33442403

Inhibition of Nrf2/HO-1 signaling pathway by Dextran Sulfate suppresses angiogenesis of Gastric Cancer.

Yuanyi Xu¹, Yuanyuan Yang¹, Yunning Huang², Qian Ma^3,4, Jing Shang⁵, Jiaxin Guo¹, Xiangmei Cao¹, Xiaofei Wang⁶, Mengqi Li¹.

Abstract

Purpose: To investigate the role of Nrf2/HO-1 signaling pathway in angiogenesis and whether dextran sulfate (DS) could suppress angiogenesis by inhibiting Nrf2/HO-1 signaling pathway in gastric cancer.
Methods: In vitro; Western blot analyzed the expression of Nrf2 in gastric cell lines. Tube formation assay observed the effect of gradient concentration DS on the angiogenic potential of HGC-27 cells. Immunofluorescence,western blot and qPCR analyzed the effects of DS on the expression of Nrf2, HO-1 and VEGF under gradient hypoxia time. Immunofluorescence,western blot,qPCR and tube formation assay analyzed the effects of up-regulating or down-regulating Nrf2/HO-1 signaling pathway on VEGF expression and angiogenic potential in HGC-27 cells. In vivo: Construct nude mouse intraperitoneal implantation metastasis model. Immunohistochemistry and western blot analyzed the effects of DS on the expression of Nrf2, HO-1, VEGF and MVD in nude mice. Immunohistochemistry detected the expression of Nrf2, HO-1, VEGF and MVD in human paracancerous tissue and gastric cancer tissues with different degrees of differentiation.
Results: The expression of Nrf2 increased most significantly in HGC-27 cell line. DS reduced the angiogenic potential and the expression of Nrf2, HO-1 and VEGF in HGC-27 cells. Down-regulation of Nrf2/HO-1 signaling pathway decreased VEGF expression and angiogenic potential in HGC-27 cells. Up-regulation of Nrf2/HO-1 signaling pathway increased VEGF expression and angiogenic potential in HGC-27 cells. DS reduced the expression of Nrf2, HO-1, VEGF and MVD in nude mice. Nrf2, HO-1, VEGF and MVD showed low expression in paracancerous tissue but high expression in gastric cancer tissues. They were weak, moderate and strong in well, moderately and poorly differentiated gastric cancer tissues, respectively.
Conclusion: Nrf2/HO-1 signaling pathway may positively regulate gastric cancer angiogenesis and DS may suppress the angiogenesis by inhibiting Nrf2/HO-1 signaling pathway in gastric cancer. © The author(s).

Entities: CellLine Chemical Disease Gene Species

Keywords: Nrf2/HO-1; VEGF; angiogenesis; dextran sulfate; gastric cancer; metastasis

Year: 2021 PMID： 33442403 PMCID： PMC7797653 DOI： 10.7150/jca.50605

Source DB: PubMed Journal: J Cancer ISSN： 1837-9664 Impact factor: 4.207

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Inhibition of Nrf2/HO-1 signaling pathway by Dextran Sulfate suppresses angiogenesis of Gastric Cancer.

Review 1. NRF2 and the Hallmarks of Cancer.

Review 2. Tumor angiogenesis and vascular normalization: alternative therapeutic targets.

3. Tert-butylhydroquinone enhanced angiogenesis and astrocyte activation by activating nuclear factor-E2-related factor 2/heme oxygenase-1 after focal cerebral ischemia in mice.

Review 4. Vascular Endothelial Growth Factor (VEGF) Signaling in Tumour Vascularization: Potential and Challenges.

5. Molecular subtyping of gastric cancer with respect to the growth pattern of lymph-node metastases.

6. Preliminary Analysis of the Expression of Selected Proangiogenic and Antioxidant Genes and MicroRNAs in Patients with Non-Muscle-Invasive Bladder Cancer.

Review 7. The Nrf2/HO-1 Axis in Cancer Cell Growth and Chemoresistance.

Review 8. Potential Applications of NRF2 Modulators in Cancer Therapy.

9. Nrf2 inhibition affects cell cycle progression during early mouse embryo development.

Review 10. Design and development of Nrf2 modulators for cancer chemoprevention and therapy: a review.

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