Mouse liver tissue with tumor (IMAGE) Cold Spring Harbor Laboratory Caption A cross-section of mouse liver tissue containing a liver cancer tumor. Cancer tissue is shown in purple and healthy tissue is shown in pink. CSHL Professor Adrian Krainer and his team found a way to make mouse liver cells produce a cancer-suppressing protein and simultaneously reduce the levels of a cancer-promoting protein, using RNA-based molecules called antisense oligonucleotides (ASOs). Credit Dillon Voss/Krainer lab/CSHL, 2021 Usage Restrictions Attribution required License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.