Study sheds light on the role of B cells in cancer immunotherapy

Study sheds light on the role of B cells in cancer immunotherapy

Cancer patients responded better to immunotherapy and had a better prognosis if their melanoma tumors contained specific clusters of B cells, according to new research from Lund University in Sweden. The study is published in Nature . Immunotherapy strengthens the immune system so that it can fight cancer more effectively. One type of immunotherapy is checkpoint therapy, that targets the checkpoints that exist to prevent the immune system from becoming too active. However, releasing these brakes on the immune system is necessary to fight certain types of cancer, something that can be done with antibodies. But far from all patients are being helped by the treatment, and intensive research is underway to understand who benefits the most from checkpoint therapy, and how it can be made even more effective. A great deal of focus so far has been on the immune cells called T cells. The new study sheds light on the role of another immune cell in immunotherapy: B cells. Researchers at Lund University, together with several other international research groups, have shown that clusters of B cells in melanoma tumors, so-called tertiary lymphoid structures, are linked to the prognosis. By studying tissue samples from 177 melanoma patients, we have been able to see that when these B-cell structures were present in the tumor, the patient had a better prognosis and responded better to immunotherapy." Göran Jönsson, professor at Lund University who led the study Related Stories



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