Cracking Cancer’s Drug Resistance Code: How Omics is Shaping the Future of Precision Medicine

ancer is one of the leading causes of death worldwide, responsible for nearly 10 million fatalities in 2020 -about one in six deaths, according to the WHO. 1 Cancer is a disease in which abnormal cells grow uncontrollably, usually spreading beyond their normal boundaries to invade other areas, even moving to other organs.It can originate in any organ or tissue of the body. 2 Despite billions of dollars invested in cancer research, the disease remains a profound mystery to the scientific community, with many aspects still not fully understood. 3 spite of the continuous development of cutting-edge cancer therapies, imagine a scenario where cancer cells become resistant to treatment-they simply do not respond to therapy, no matter how effective it is.In this battle against cancer, drug resistance is the silent enemy that undermines even our most potent therapeutics. 4hen cancer cells become less responsive or completely resistant to the effects of treatments, major challenges in cancer therapy arise, which often lead to treatment failure, disease progression, and ultimately poorer outcomes for patients. 2,3Drug resistance, which can either exist before treatment or can occur after therapy, accounts for most relapses of cancer and is also responsible for 80-90% of cancer-related deaths. 5,6,7 What if the key to understanding drug resistance in cancer lies in a much deeper understanding of cancer at a molecular level?Multi-omics is a holistic approach that combines data from multiple levels of biology, such as genomics (genome), metabolomics (metabolites), transcriptomics (RNA transcripts produced by the genome), epigenomics (heritable changes in gene expression that are not caused by DNA changes), proteomics (proteins), and other omics disciplines. 8,9It is an integration of various omics fields, which presents enormous potential in advancing our understanding of drug resistance in cancer.Multi-omics offers a more comprehensive understanding of molecular changes that affect normal development, cellular responses, and diseases -including cancer.