Method for generating immunoregulatory cells in a blood-derived sample

Abstract

The present invention relates to a method comprising the steps of provision of a sample derived from a blood sample of a subject that has received a checkpoint-inhibitor therapy and is suspected of developing or has developed symptoms of immune-related adverse events (irAE), adding a photosensitizing agent to the sample, and subjecting the sample to irradiation, which preferably generates immunoregulatory NK cells in said sample. In embodiments, the photosensitizing agent is 8-methoxypsoralen and/or the irradiation is UVA irradiation. In another aspect, the invention relates to immunoregulatory NK cells obtained from a method comprising the steps of provision of a sample derived from an isolated blood sample of a subject, adding a photosensitizing agent to the sample, and subjecting the sample to irradiation. Furthermore, the invention encompasses immunoregulatory NK cells for use in the treatment and/or prevention of irAE in a subject that has received a checkpoint-inhibitor therapy.

Dependencies are inferred from the claim text.