Investigating the role of specific microRNAs in regulating gene expression in cancer cells.

Thesis Abstract

Abstract
MicroRNAs (miRNAs) are small non-coding RNA molecules that play crucial roles in regulating gene expression at the post-transcriptional level. In cancer cells, dysregulation of miRNAs has been implicated in tumorigenesis, metastasis, and drug resistance. This study aimed to investigate the role of specific miRNAs in regulating gene expression in cancer cells. The research began with a comprehensive review of the literature on miRNAs and cancer, highlighting the importance of understanding the complex regulatory networks involved in cancer development. The literature review identified key miRNAs that have been associated with different aspects of cancer biology, providing a foundation for the subsequent experimental work. The methodology section detailed the experimental approach used in this study, including cell culture techniques, miRNA manipulation, gene expression analysis, and functional assays. Cancer cell lines were treated with specific miRNA mimics or inhibitors to modulate miRNA expression levels, followed by the analysis of gene expression changes using quantitative PCR and RNA sequencing. Functional assays such as cell proliferation, migration, and invasion assays were performed to assess the impact of miRNA manipulation on cancer cell behavior. The results of the study revealed significant changes in gene expression profiles upon modulation of specific miRNAs in cancer cells. Several target genes of the investigated miRNAs were identified, shedding light on the regulatory mechanisms underlying the observed effects. Functional assays demonstrated that alterations in miRNA expression levels could influence cancer cell proliferation, migration, and invasion, highlighting the potential therapeutic implications of targeting these miRNAs. In conclusion, this study provides valuable insights into the role of specific miRNAs in regulating gene expression in cancer cells. By elucidating the regulatory networks controlled by these miRNAs, this research contributes to a better understanding of cancer biology and identifies potential targets for future therapeutic interventions. The findings of this study underscore the importance of miRNAs as key players in cancer development and progression, paving the way for further research in this field. Keywords microRNAs, cancer cells, gene expression, regulatory networks, tumorigenesis, therapeutic targets.