Abstract: The present invention relates to a method for predicting a response or resistance to and/or a benefit from treatment with an inhibitor of cyclin-dependent kinases 4 (CDK4/6 inhibitor) in a subject suffering from a neoplastic disease, particularly breast cancer, comprising the step of: determining in a sample obtained from said subject the expression level of at least one marker selected from the group consisting of PD-L1, PIAS2, MAP2K6, DSG3, ABCC12, IFT52, ABCB6, ABCC1, ABCA5, ABCC6, ABCC11, CHUK, SUMO1, TDG, AURKA, SMC3, IKBKG and XPC, wherein the expression level of the at least one marker is indicative for predicting the response or resistance to and/or the benefit from the treatment with the CDK4/6 inhibitor in said subject. The invention further pertains to a CDK4/6 inhibitor for use in the treatment of neoplastic disease, particularly breast cancer, in a subject, wherein the subject has been determined to have a benefit from treatment with a CDK4/6 inhibitor in a method of the invention.

Abstract: The present invention relates to methods, kits, systems and uses thereof for prediction of the response or resistance to and/or benefit from a cancer immunotherapy of a subject suffering from or being at risk of developing a neoplastic disease, in particular breast cancer, based on the measurement(s) of expression level(s) of at least one marker in samples of said subject. Equally, the present invention relates to methods, kits, systems and uses thereof for predicting the outcome from the cancer immunotherapy treatment in said subject based on the measurement(s) of the expression level(s) of the at least one marker in samples of said subject. Further, the present invention relates to the cancer immunotherapy for use in the treatment of the neoplastic disease, in particular breast cancer, in the subject and to methods for cancer immunotherapy treatment by using the cancer immunotherapy according to the methods of the present invention.