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Transcriptomic Profiling Reveals Isoform-Specific Regulatory Roles of miR-196A and miR-196B in Colorectal Cancer Cells
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Transcriptomic Profiling Reveals Isoform-Specific Regulatory Roles of miR-196A and miR-196B in Colorectal Cancer Cells
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Transcriptomic Profiling Reveals Isoform-Specific Regulatory Roles of miR-196A and miR-196B in Colorectal Cancer Cells
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Journal Article
Transcriptomic Profiling Reveals Isoform-Specific Regulatory Roles of miR-196A and miR-196B in Colorectal Cancer Cells
2026
Overview
MicroRNAs (miRNAs) play important roles in the regulation of gene expression and are frequently dysregulated in cancer. Among them, the miR-196 family has been implicated in multiple malignancies, including colorectal cancer (CRC), but the isoform-specific transcriptional effects of miR-196A and miR-196B remain poorly understood. In this study, we generated miR-196A and miR-196B knockout SW48 CRC cell lines using CRISPR-based genome editing and performed RNA sequencing to investigate the transcriptional consequences of individual miR-196 isoform deletion. Transcriptomic analysis revealed widespread gene expression changes in both knockout models and demonstrated distinct clustering patterns between parental SW48 cells and miR-196-deficient cells. Functional enrichment analysis indicated that the altered genes were associated with biological processes related to cytoskeletal organization, intracellular transport, protein folding, and metabolic regulation. Notably, both shared and isoform-specific transcriptional alterations were observed, suggesting that miR-196A and miR-196B contribute to partially overlapping but distinct regulatory networks in CRC cells. Collectively, these findings provide a comprehensive transcriptomic overview of miR-196 isoform deletion in colorectal cancer cells and highlight potential isoform-dependent transcriptional programs that may contribute to CRC biology.
Publisher
MDPI AG,Multidisciplinary Digital Publishing Institute (MDPI)
