also because they are characterized by increased expression of antiapoptotic proteins and drug efflux transports . Additionally, according to recent findings, they rapidly change antigen expression , making them unlikely targets for immunotherapies that target cell surface proteins." Link: http://www.genengnews.com/analysis-and-insight/melanoma-cells-all-stem-cells-in-disguise/77899351/ Comments Post a comment; thoughtful, considered opinions are valued. Please note