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Novel Hypoxia-induced HIF-1αactivation in Asthma Pathogenesis

Overview
Journal Respir Res
Specialty Pulmonary Medicine
Date 2024 Jul 26
PMID 39061007
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Abstract

Background: Asthma's complexity, marked by airway inflammation and remodeling, is influenced by hypoxic conditions. This study focuses on the role of Hypoxia-Inducible Factor-1 Alpha (HIF-1α) and P53 ubiquitination in asthma exacerbation.

Methods: High-throughput sequencing and bioinformatics were used to identify genes associated with asthma progression, with an emphasis on GO and KEGG pathway analyses. An asthma mouse model was developed, and airway smooth muscle cells (ASMCs) were isolated to create an in vitro hypoxia model. Cell viability, proliferation, migration, and apoptosis were assessed, along with ELISA and Hematoxylin and Eosin (H&E) staining.

Results: A notable increase in HIF-1α was observed in both in vivo and in vitro asthma models. HIF-1α upregulation enhanced ASMCs' viability, proliferation, and migration, while reducing apoptosis, primarily via the promotion of P53 ubiquitination through MDM2. In vivo studies showed increased inflammatory cell infiltration and airway structural changes, which were mitigated by the inhibitor IDF-11,774.

Conclusion: The study highlights the critical role of the HIF-1α-MDM2-P53 axis in asthma, suggesting its potential as a target for therapeutic interventions. The findings indicate that modulating this pathway could offer new avenues for treating the complex respiratory disorder of asthma.

References
1.
Zhang J, Chang L, Chen C, Zhang M, Luo Y, Hamblin M . Rad GTPase inhibits cardiac fibrosis through connective tissue growth factor. Cardiovasc Res. 2011; 91(1):90-8. PMC: 3657537. DOI: 10.1093/cvr/cvr068. View

2.
Ni H, Qin H, Sun C, Liu Y, Ruan G, Guo Q . MiR-375 reduces the stemness of gastric cancer cells through triggering ferroptosis. Stem Cell Res Ther. 2021; 12(1):325. PMC: 8180146. DOI: 10.1186/s13287-021-02394-7. View

3.
Cao H, Chen X, Wang Z, Wang L, Xia Q, Zhang W . The role of MDM2-p53 axis dysfunction in the hepatocellular carcinoma transformation. Cell Death Discov. 2020; 6:53. PMC: 7305227. DOI: 10.1038/s41420-020-0287-y. View

4.
Lou J, Hao Y, Lin K, Lyu Y, Chen M, Wang H . Circular RNA CDR1as disrupts the p53/MDM2 complex to inhibit Gliomagenesis. Mol Cancer. 2020; 19(1):138. PMC: 7487905. DOI: 10.1186/s12943-020-01253-y. View

5.
Hu L, Li L, Zhang H, Li Q, Jiang S, Qiu J . Inhibition of airway remodeling and inflammatory response by Icariin in asthma. BMC Complement Altern Med. 2019; 19(1):316. PMC: 6862818. DOI: 10.1186/s12906-019-2743-x. View