A Suspect in Cancer Is Exonerated (IMAGE) Cold Spring Harbor Laboratory Caption The growth of human colon cancer cells (raised in culture) is unaffected by the MELK gene. Top row: untreated cells; bottom row: cells treated with a MELK inhibitor drug. Left two columns, control cells; right two columns, cells in which MELK gene has been knocked out. CSHL researchers conclude that MELK is not involved in cancer proliferation. Credit Sheltzer Lab, CSHL Usage Restrictions None License Licensed 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.