ALEXANDRIA, Va., March 26 -- United States Patent no. 12,257,286, issued on March 25, was assigned to Mayo Foundation for Medical Education and Research (Rochester, Minn.).

"Methods and materials for treating cancer" was invented by Saad J. Kenderian (Rochester, Minn.), Neil E. Kay (St. Louis Park, Minn.), Michelle J. Cox (Rochester, Minn.) and Fabrice Lucien-Matteoni (Rochester, Minn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "This document relates to methods and materials involved in treating mammals having a cancer (e.g., a cancer having one or more CD19 positive extracellular vesicles (EVs) and/or one or more small EVs in the tumor microenvironment). For example, methods of treating a mammal having a...