Summary: Creative Biolabs provides SmarterTM Marked CAR construction service for customers across the world. CAR-engineered T cell therapy has been rapidly developing in recent years. It has achieved impressive curative effects on many types of cancers. However, there are some adverse events following treatment with CAR-T cell therapy. Marked CAR-T cells express not only CARs but also tumor epitopes that can be recognized by an existing monoclonal antibody.