ArticleInternational journal of nanomedicine2025
Heme Oxygenase-1 Modulates Macrophage Polarization Through Endothelial Exosomal miR-184-3p and Reduces Sepsis-Induce Lung Injury.
Article in International journal of nanomedicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed.
- Review
- ATF4 orchestrates cancer hallmarks: Stress adaptation, metabolic reprogramming and immune suppression.iScience · 2026Review
- Recent Advances in Exosome-Based Therapeutic Strategies for Acute Lung Injury: Mechanisms and Translational Advances.Antioxidants (Basel, Switzerland) · 2026Review
- A multifunctional and ROS response CO-gas delivery platform for spinal cord regeneration.Materials today. Bio · 2026Article
- Advances in understanding exosome-mediated regulation of macrophage function.Frontiers in immunology · 2026Review
- Nanotechnology for atherosclerotic plaque stabilisation: bridging innovation and clinical practice.EBioMedicine · 2026Review
- Identify Diagnostic Biomarkers Related to Taurine Metabolism in Diabetic Foot Ulcers Using Bulk RNA-seq and ScRNA-seq Analysis.Journal of diabetes · 2026Article
- Exosomal miR-148a-3p from LPS-Activated Macrophages Promotes M1 Polarization and Ferroptosis-Related Characteristics of Recipient Macrophages by Reducing SLC7A11.Infection and drug resistance · 2026Article
- Iron homeostasis and macrophage polarization in pulmonary fibrosis: mechanisms and therapeutic perspectives.Frontiers in immunology · 2025Review
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Authors and funding
10 authors.
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Abstract
Introduction: Pulmonary microvascular endothelial cells (PMVECs) are notably implicated in the pathogenesis of sepsis-induced lung injury. Exosomes derived from PMVECs facilitate intercellular communication among various cell types, especially crosstalk with macrophages. Heme oxygenase-1 (HO-1), an early stress-responsive enzyme with inherent protective functions, has been implicated in acute lung injury (ALI) mitigation. But research on the mechanism of HO-1 in macrophage polarization via PMVEC exosomes in sepsis-induced lung injury is lacking. Methods: To investigate the role of HO-1 in the interaction between endothelial cells and macrophages, HO-1 knockout mouse model were established. Exosomes from PMVECs were isolated, and differential expression of microRNA (miRNA) was determined by sequencing. An in vitro co-culture system involving Murine Alveolar Macrophage Cell Line (MH-S cells) and HO-1/ PMVECs-derived exosomes (HP-exos) was used to investigate the underlying mechanisms. To further verify the involvement of HO-1 in intercellular communication through exosomal miRNA in vivo, the level of pulmonary inflammation was evaluated, and the polarization of pulmonary macrophages was analyzed. Results: The results showed that miR-184-3p was significantly downregulated in HP-exos, and supplementation of miR-184-3p enhanced the polarization of M1 macrophages, thus intensifying lung inflammation. HO-1 regulates the polarization of macrophages by regulating endothelial exosomes. Overexpression of HO-1 downregulates miR-184-3p, which negatively regulates Semaphorin 7A (Sema7a), which attenuated M1 type macrophages (M1) polarization and augmented M2 type macrophages (M2) polarization, thereby partially mitigating lung injury and inflammation. Conclusion: Collectively, we elucidated a novel potential therapeutic mechanism that HO-1 alleviate inflammation by modulating the M1/M2 ratio in sepsis-induced ALI by regulating miR-184-3p/Sema7a expression.
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