Researchers wanted to better understand how a special type of genetic material—called long non-coding RNAs (lncRNAs)—might play a role in breast cancer. Unlike regular genes that make proteins, lncRNAs help control how genes work. To explore this, the scientists studied breast tissue from 18 women with breast cancer and 18 healthy women. Importantly, the healthy tissue came from donors at the Komen Tissue Bank, the only tissue bank in the world that collects healthy breast tissue from volunteers. This gave the researchers a unique opportunity to compare truly healthy tissue to cancerous tissue, which helped them find clearer differences in gene activity.
The researchers discovered that some lncRNAs work closely with regular genes in patterns that change between healthy and cancerous tissue. One newly identified lncRNA, called AC145110.1, stood out for being linked to over 100 other genes and to breast cancer outcomes. The team also found that different sets of genes were involved in important cancer-related processes like cell growth, communication, and blood vessel development. This study showed that lncRNAs may help drive cancer by influencing gene activity, and it highlighted how the Komen Tissue Bank made these discoveries possible by providing the high-quality, healthy breast tissue needed for comparison.
