Recent advancements in genomic and molecular profiling have significantly enhanced our understanding of cancer biology and treatment. One notable study introduced a novel approach termed "precision peptidomics," which mapped over 337,000 coding germline variants onto the proteomes of 1,064 cancer patients across ten different cancer types. This research revealed that germline variants can influence post-translational modifications, protein stability, and expression levels, particularly in kinases such as ERBB2 and MAP2K2, which are critical for phosphorylation processes (ref: Martins Rodrigues doi.org/10.1016/j.cell.2025.03.026/). Another study focused on the programmability of regulatory DNA sequences, utilizing CRISPR targeting screens to introduce hundreds of designed edits to endogenous regulatory DNA, thereby quantifying their effects on gene expression (ref: Martyn doi.org/10.1016/j.cell.2025.03.034/). Furthermore, the role of circular RNA, specifically circRMST, was explored in the transdifferentiation of prostate and lung adenocarcinomas into neuroendocrine cancers, highlighting its potential as a regulatory molecule in tumor progression (ref: Teng doi.org/10.1016/j.ccell.2025.03.027/). These studies collectively underscore the importance of integrating genomic data into clinical practice to tailor cancer therapies more effectively. In addition to genomic profiling, innovative therapeutic strategies have emerged, such as the DGlyTAC technique, which selectively targets glycosylated immune checkpoint proteins like PD-L1 for inactivation, demonstrating a promising avenue for enhancing cancer immunotherapy (ref: Li doi.org/10.1038/s41392-025-02219-6/). A phase Ib clinical trial of HH2853 in patients with relapsed peripheral T-cell lymphoma provided safety and efficacy data, reinforcing the need for novel treatment options in aggressive malignancies (ref: Hong doi.org/10.1186/s13045-025-01697-z/). Together, these findings illustrate the dynamic interplay between genomic insights and therapeutic innovations in the ongoing battle against cancer.