Scientists at Israel’s Weizmann Institute have paved the way for a vaccine against ovarian cancer. It utilizes “memory B cells”, rather than T cells, to tag the cancer as a target and produce antibodies that specifically recognize and target ovarian cancer cells.
https://www.thejc.com/news/israel/israeli-scientists-in-ovarian-cancer-vaccine-breakthrough-abt5k2k1
https://wis-wander.weizmann.ac.il/life-sciences/when-body-remembers-tumor
https://www.cell.com/immunity/abstract/S1074-7613(26)00179-2