AI Insight
This study examined how chromosome arm-level aneuploidies (abnormal chromosome numbers) influence the selection of specific cancer driver genes in basal-like breast cancer. The researchers identified PLGRKT as a novel oncogene that promotes tumor growth through stress-resistant mitochondria and enhanced ability to neutralize reactive oxygen species. The findings demonstrate that large-scale chromosomal alterations create selective pressures that favor the acquisition of particular driver mutations.
Why it matters
Understanding how aneuploidy shapes cancer evolution could help identify new therapeutic targets and predict which tumors are likely to develop specific vulnerabilities. The discovery of PLGRKT as an oncogene linked to mitochondrial stress resistance may enable development of treatments targeting this pathway in basal-like breast cancers, which are often aggressive and difficult to treat.
Understand the Science
Nature, Published online: 08 July 2026; doi:10.1038/s41586-026-10752-9
Screening of chromosome arm-level aneuploidies uncovers that these alterations select for specific basal-like breast cancer driver genes, including PLGRKT, an oncogene whose tumour-promoting activity is associated with highly stress-resistant mitochondria and enhanced detoxification of reactive oxygen species.
Source: Aneuploidy selects for the acquisition of driver genes in breast cancer