MICROBIAL COMPOSITIONS FOR IMPROVING THE EFFICACY OF ANTICANCER TREATMENTS BASED ON IMMUNE CHECKPOINT INHIBITORS AND/OR TYROSINE KINASE INHIBITORS AND MARKERS OF RESPONSIVENESS TO SUCH TREATMENTS

摘要

The invention pertains to the use of bacteria selected amongst Alistipes senegalensis, Dorea longicatena and Eubacterium siraeum for inducing immunostimulation in a patient in combination with an anti-cancer immunotherapy with an immune checkpoint inhibitor (ICI) and/or a tyrosine kinase inhibitor (TKI). The invention also relates to methods for assessing the probability that a patient respond to a treatment with an ICI and/or a TKI, based on measuring the relative abundances of immunotolerant bacterial species (Clostridium hathewayi, Clostridium clostridioforme and Clostridium boltae) and/or immunostimulatory bacterial species (Akkermansia muciniphila, Bacteroides salyersiae, Alistipes senegalensis, Dorea longicatena and Eubacterium siraeum) in the patient's gut microbiota.