Integrating Genomics and Proteomics Technologies in Biological Research: Advantages, Challenges, and Prospects

Introduction: The integration of genomics and proteomics, two cornerstone omics technologies, has transformed our understanding of biological systems, enabling deeper insights into disease mechanisms, biomarker discovery, and the development of personalised medicine. While genomics uncovers genetic blueprints, proteomics reveals functional protein expressions, making their combined use essential for a holistic view of biological processes. This narrative review explores the current state, advantages, challenges, and prospects of integrating genomics and proteomics in biological research, particularly in the context of translational medicine and global health applications. Methods: A systematic literature search was conducted across four databases—PubMed, Scopus, Web of Science, and Google Scholar, for English-language peer-reviewed articles published between January 2015 and May 2025. A PRISMA-based approach guided article screening and selection. Inclusion criteria focused on studies addressing multi-omics integration, relevant technologies, clinical applications, and associated ethical concerns. The findings were synthesised using thematic analysis. Synthesis: The review highlights the growing synergy between genomics and proteomics in enhancing disease diagnosis, drug discovery, and precision medicine. Advances in next-generation sequencing and mass spectrometry, coupled with computational tools such as MOFA+ and AlphaFold, have improved data integration. However, challenges persist, including high data complexity, computational demands, ethical/legal concerns, and limited access in low-resource settings. Conclusion: Integrated omics approaches hold immense potential to revolutionise healthcare and biological discovery. Addressing current barriers and fostering global collaboration, particularly in underrepresented regions, are critical to realising the full benefits of genomics and proteomics integration.