1. M2 Macrophage exosomal HOXC13-AS in laryngeal cancer immunity via targeting miR-485-5p/IGF2BP2/PD-L1.
- Author
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He S, He Y, Zhu S, Wang R, Liu S, Wang L, Shen X, Li X, Chen S, and Fang J
- Subjects
- Animals, Humans, Mice, B7-H1 Antigen metabolism, B7-H1 Antigen genetics, Cell Line, Tumor, Gene Expression Regulation, Neoplastic, Mice, Nude, MicroRNAs genetics, MicroRNAs metabolism, RNA-Binding Proteins metabolism, RNA-Binding Proteins genetics, Tumor Escape genetics, Exosomes metabolism, Exosomes genetics, Homeodomain Proteins genetics, Homeodomain Proteins metabolism, Laryngeal Neoplasms immunology, Laryngeal Neoplasms genetics, Laryngeal Neoplasms pathology, Macrophages immunology, Tumor Microenvironment immunology, RNA, Long Noncoding genetics
- Abstract
This study investigates the role of M2-exo-mediated HOXC13-AS in laryngeal squamous cell carcinoma (LSCC) by examining its transmission to tumor microenvironment (TME) macrophages. Exosomes from M2 macrophages were isolated and characterized using transmission electron microscopy, nanoparticle tracer analysis and western blot. Expression of HOXC13-AS, miR-485-5p, IGF2BP2, and PD-L1 was analyzed. Different interventions on LSCC cell function and immune escape were detected using molecular biological techniques. The study found that elevated HOXC13-AS were present in LSCC, and M2-exo expression was significantly increased in LSCC cells. Silencing HOXC13-AS in M2-exo inhibited LSCC malignant progression and immune escape in vivo and in vitro. M2-exo-mediated HOXC13-AS also regulated IGF2BP2 expression, impacting cellular biological function and immune escape process. The study concludes that M2-exo-mediated HOXC13-AS promotes LSCC malignancy and immune escape., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024. Published by Elsevier B.V.)
- Published
- 2024
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