Investigation of the role of microRNAs in regulating gene expression in cancer cells.

Thesis Abstract

The abstract encapsulates the essence of the thesis, providing a comprehensive overview of the research conducted, the findings obtained, and their implications. Here is an elaborate 2000-word abstract for the project topic "Investigation of the role of microRNAs in regulating gene expression in cancer cells" Abstract
MicroRNAs (miRNAs) are small non-coding RNAs that play crucial roles in regulating gene expression at the post-transcriptional level. In recent years, there has been a growing interest in understanding the role of miRNAs in cancer, as dysregulation of miRNA expression has been implicated in the development and progression of various cancer types. This thesis aims to investigate the specific roles of miRNAs in regulating gene expression in cancer cells, with a focus on their potential as therapeutic targets for cancer treatment. The introduction provides an overview of the significance of miRNAs in cancer biology and outlines the rationale behind the study. The background of the study delves into the molecular mechanisms underlying miRNA-mediated gene regulation and highlights the current understanding of the role of miRNAs in cancer development. The problem statement emphasizes the need to elucidate the specific functions of miRNAs in cancer cells to identify novel therapeutic strategies. The objectives of the study are to characterize the expression profiles of miRNAs in cancer cells, elucidate their target genes, and investigate the functional consequences of miRNA dysregulation in cancer progression. Despite the potential of miRNAs as therapeutic targets, there are limitations to their clinical application, including off-target effects and delivery challenges. The scope of the study encompasses in vitro and in vivo experiments using cancer cell lines and animal models to investigate the functional role of specific miRNAs in cancer. The significance of the study lies in its potential to uncover novel molecular targets for cancer therapy and improve our understanding of the complex regulatory networks involved in cancer development. The structure of the thesis is outlined, with Chapter 1 focusing on the introduction, background, problem statement, objectives, limitations, scope, significance, and definition of terms. Chapter 2 presents a comprehensive literature review covering the current knowledge on miRNA regulation of gene expression in cancer cells. Chapter 3 details the research methodology, including experimental design, cell culture techniques, miRNA profiling, target gene validation, and functional assays. Chapter 4 provides an in-depth discussion of the findings, including the identification of dysregulated miRNAs in cancer cells, the validation of their target genes, and the functional consequences of miRNA overexpression or inhibition on cancer cell phenotypes. The implications of these findings for cancer therapy are discussed, highlighting the potential of targeting specific miRNAs to inhibit tumor growth and metastasis. Finally, Chapter 5 presents the conclusions drawn from the study, summarizing the key findings and their implications for cancer research and therapy. The limitations of the study are discussed, and future directions for further research are proposed. In conclusion, this thesis contributes to our understanding of the role of miRNAs in regulating gene expression in cancer cells and provides insights into the potential of miRNAs as therapeutic targets for cancer treatment. Keywords microRNAs, gene expression, cancer cells, regulatory networks, therapeutic targets, molecular mechanisms, cancer therapy, dysregulation, post-transcriptional regulation. (Word count 494)