Researchers at Stanford University, led by developmental biologist Gerald Crabtree and chemical biologist Nathanael Gray, engineered a synthetic small-molecule compound (a “KAT-TCIP,” short for lysine acetyltransferase-based transcriptional chemical inducer of proximity) that physically tethers the oncogenic protein BCL6 — a transcription factor that keeps diffuse large B-cell lymphoma (DLBCL) cells alive by silencing their own cell-death genes, and that is dysregulated in roughly 40% of DLBCL cases — to CDK9, a separate enzyme that switches genes on. This forced proximity flips BCL6’s normal function, redirecting it to switch on the very apoptosis (programmed cell-death) genes it normally represses. Because BCL6 is expressed almost exclusively in this lymphoma cell type and one specific normal B-cell population, the compound was highly selective in laboratory testing: it killed only diffuse large B-cell lymphoma cells among 859 different cancer cell lines tested (cell-proliferation IC50 approximately 0.8 nanomolar), and eliminated tumors within 11 days in DLBCL cell-line-derived mouse xenograft models. This work is reported in a preprint (bioRxiv, DOI 10.1101/2025.03.14.643404, PMID 40166243) that has not yet completed formal peer review as of this record; it is laboratory (cell-line) and animal (mouse) research only — no human patients have been treated with this compound, and it is not a clinical trial or an approved or investigational human therapy of any kind.

A preclinical study of the GATA6 gene identifies a growth mechanism relevant to colorectal cancer, combining human tumor analyses with laboratory cell-line experiments and mouse-model work. Primary publication: PMID 39919174, https://pubmed.ncbi.nlm.nih.gov/39919174/, DOI https://doi.org/10.1126/sciadv.ads4985. This is preclinical mechanistic research: no human treatment efficacy has been established, and this must never be summarized as researchers having discovered ‘the key to treating colon cancer’ or equivalent overstated framing. [Identifiers as supplied, attributed to independent verification outside this environment — not independently re-verified live here.]