ArticleAnnals of translational medicine2021
AZD9291-resistant non-small cell lung cancer cell-derived exosomal lnc-MZT2A-5:1 induces the activation of fibroblasts.
Article in Annals of translational medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 11 citations in OpenAlex.
- ACPA prevents lung fibroblast-to-CAF transformation by reprogramming the tumor microenvironment through NSCLC-derived exosomes.Scientific reports · 2025Article
- Exosomal LncRNAs and CircRNAs in lung cancer: Emerging regulators and potential therapeutic targets.Non-coding RNA research · 2024Review
- MZT2A serves as a prognostic biomarker and promotes the progression of kidney renal clear cell carcinoma.Heliyon · 2024Article
- New insights into the interaction between m6A modification and lncRNA in cancer drug resistance.Cell proliferation · 2024Review
- Targeting non-coding RNAs to overcome osimertinib resistance inFrontiers in oncology · 2024Review
- The therapeutic potential of exosomes in lung cancer.Cellular oncology (Dordrecht, Netherlands) · 2023Review
- Exosomal Long Noncoding RNAs in NSCLC: Dysfunctions and Clinical Potential.Journal of Cancer · 2023Review
- Long non-coding RNAs in non-small cell lung cancer: implications for EGFR-TKI resistance.Frontiers in genetics · 2023Review
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundAZD9291 resistance is still a challenge in the treatment of non-small cell lung cancer (NSCLC) and fibroblasts in the tumor microenvironment (TME) play a key role in the malignant phenotype of NSCLC. The study aimed to investigate the role of exosomes derived from AZD9291-resistant cells on the phenotypes of lung fibroblasts and the underlying mechanism.
methodsThe supernatants and exosomes of wild type and AZD9291-resistant NSCLC (H1975/PC9) cells were collected, and co-cultured with lung fibroblasts (MRC-5 cells) respectively. Transwell and quantitative real-time PCR (qRT-PCR) assays were used to evaluate migration and inflammation levels. Exosomes were collected by ultracentrifugation, and identified by nanoparticle tracking analysis (NTA), transmission electron microscopy (TEM) and western blots. Microarray was used to screen dysregulated exosomal lncRNAs from the resistant cells. Candidate lncRNAs were selected by bioinformatical annotation of their target genes and verified by qRT-PCR. The target lncRNA was then selected for further confirmation.
resultsBoth the supernatant and exosomes from resistant cells significantly promoted the migration of MRC-5 cells, and the exosomes also upregulated mRNA levels of inflammation cytokines. Microarray identified 159 dysregulated exosomal lncRNAs. Fifteen candidate lncRNAs were selected following the biological roles of their target genes. qRT-PCR validation indicated that lnc-MZT2A-5:1 had the highest fold change. Finally, we found that lnc-MZT2A-5:1 could promote the migration ability and inflammation cytokines expression level of MRC-5 cells.
conclusionsOur study clarified that lnc-MZT2A-5:1 from AZD9291-resistant NSCLC cell lines could promote the activation of MRC-5 cells, thus to uncover a new mechanism for AZD9291 resistance and provide new potential targets for the treatment of NSCLC.
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