The Role of MicroRNAs in Cancer Development and Progression: A Biochemical Perspective

Thesis Abstract

Abstract
Cancer continues to be a major global health concern, with its complex etiology and progression mechanisms posing significant challenges for effective treatment strategies. Among the various factors influencing cancer development and progression, microRNAs (miRNAs) have emerged as key regulators with diverse functions in oncogenesis. This thesis investigates the role of miRNAs in cancer development and progression from a biochemical perspective, aiming to enhance our understanding of the underlying mechanisms and potential therapeutic targets. The introduction provides a comprehensive overview of the significance of miRNAs in cancer biology, highlighting their regulatory roles in gene expression and cellular processes crucial for tumor initiation and progression. The background of the study delves into the molecular mechanisms through which miRNAs exert their influence on cancer cells, emphasizing their potential as diagnostic and prognostic biomarkers in oncology. The problem statement underscores the critical gaps in current knowledge regarding specific miRNA-mediated pathways in different cancer types and the need for further research to elucidate their functional significance. The objectives of the study are outlined to investigate the specific miRNAs involved in cancer development, their target genes, and the implications for therapeutic interventions. The limitations of the study are acknowledged, including the challenges associated with miRNA research, such as sample heterogeneity, technical variability, and data interpretation complexities. The scope of the study is defined to focus on selected miRNAs with well-established roles in cancer progression, aiming to provide a detailed analysis of their biochemical functions and clinical relevance. The significance of the study lies in its potential to contribute to the identification of novel therapeutic targets and personalized treatment strategies based on miRNA expression profiles in cancer patients. The structure of the thesis is outlined to guide the reader through the subsequent chapters, emphasizing the logical progression of the research objectives and findings. Chapter two presents a comprehensive literature review encompassing ten key aspects of miRNA involvement in cancer development and progression, integrating existing knowledge and highlighting gaps for further investigation. Chapter three details the research methodology, including sample collection, miRNA profiling techniques, bioinformatics analyses, and statistical approaches to elucidate miRNA-target interactions. Chapter four constitutes the core of the thesis, providing an elaborate discussion of the findings obtained through experimental analyses and computational modeling. The biochemical functions of specific miRNAs in cancer cells are dissected, emphasizing their impact on signaling pathways, cell cycle regulation, and metastatic potential. In the conclusion and summary chapter, the key findings are synthesized to provide a coherent interpretation of the data, elucidating the implications for future research directions and clinical applications. Overall, this thesis contributes to advancing our understanding of the role of miRNAs in cancer development and progression, offering insights that may guide the development of novel therapeutic strategies for combating this complex disease.