Abstract: The present invention provides a less expensive immunotherapy drug for tumor. Tumor immunity can be activated by at least one member selected from the group consisting of tetracycline-based compounds and pharmaceutically acceptable salts thereof.

Abstract: An object of the present invention is to provide a companion diagnostic for predicting the effect of a tumor immunotherapy. The effect of a tumor immunotherapy is predicted by a method including step 1: contacting directly or indirectly peripheral blood mononuclear cells collected from a patient who is a target for treatment of a malignant tumor with tumor cells in vitro; step 2: determining whether the tumor cells that contacted with the peripheral blood mononuclear cells in step 1 are damaged; and step 3: determining that the tumor immunotherapy is effective against the malignant tumor in the patient when the tumor cells are determined to have been damaged in step 2.

Abstract: Embodiments concern methods and/or compositions related to immunotherapy for cancer. In particular embodiments, engager immune cells harbor a vector that encodes a secretable engager molecule. In particular cases, the engager molecule has an activation domain and an antigen recognition domain. In some embodiments, the engager molecules further comprise a cytokine or co-stimulatory domain, for example.

Abstract: Embodiments concern methods and/or compositions related to immunotherapy for cancer. In particular embodiments, engager immune cells harbor a vector that encodes a secretable engager molecule. In particular cases, the engager molecule has an activation domain and an antigen recognition domain. In some embodiments, the engager molecules further comprise a cytokine or co-stimulatory domain, for example.