ArticleThoracic cancer2025
Establishing a new human lung squamous cell carcinoma cell line, OMUL-1, expressing insulin-like growth factor 1 receptor and programmed cell death ligand 1.
Article in Thoracic cancer, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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12 authors.
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No grant is acknowledged in the PubMed record.
Abstract
the main problemSquamous cell carcinoma is the second most prevalent type of non-small cell lung cancer. Analyzing the molecular mechanisms underlying lung carcinoma requires useful tools, such as squamous lung cancer cell lines.
methodsA novel new lung squamous cell carcinoma cell line, OMUL-1, was developed from the primary lung cancer of a 74-year-old man. We assessed the characteristics and behavior of OMUL-1 cells were examined, including their growth kinetics, tumorigenicity in mice, histological properties, gene expression profiles using reverse transcription polymerase chain reaction (RT-PCR), and RNA sequencing and invasion assays.
resultsOMUL-1-an adherent cell line-resulted in 100% tumor formation when subcutaneously injected into mice. Histological analysis of the subcutaneous tumor using hematoxylin and eosin staining revealed squamous cell carcinoma with characteristics similar to those of the primary tumor (p40 and p63 were positive, and TTF-1 was negative). An invasion assay demonstrated that OMUL-1 had a lower invasion ability compared to that of other developed cell lines. RT-PCR analysis and RNA sequencing indicated that OMUL-1 cells expressed FGFR1, FGFR2, FGFR3, FGFR4, EGFR, HER2, ErbB3, ErbB4, VEGFR3, IGF1R, c-MET, PDGFRa, and PDGFRb. Additionally, picropodophyllin (an IGF1R inhibitor) significantly inhibited the growth of OMUL-1 cells. Immunohistochemistry revealed that IGF1R and PD-L1 were expressed in both the primary and subcutaneous tumors.
conclusionsWe developed a novel new squamous cell lung carcinoma cell line, OMUL-1, that expresses IGF1R and PD-L1.
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