09/19/2024
"Tumour mutational burden (TMB): Tumours with a high number of mutations tend to produce more neoantigens, making it easier for the immune system to recognize and attack them. TMB has been one of the most studied biomarkers for predicting response to CPIs.
Effective T-cell infiltration: The presence of cytotoxic T-cells in the tumor is essential for the effectiveness of CPIs. This study has confirmed that a higher infiltration of these cells is directly related to a better response to the therapy.
TGF-β activity in the tumor microenvironment: This factor influences the behavior of some cells in the tumor microenvironment. High TGF-β activity can suppress the immune response, which is reflected in a tendency for patients to have poorer survival after immunotherapy treatment.
Previous treatment: Patients who have received previous treatments tend to show a poorer response to immunotherapy.
Tumour proliferative potential: Patients with tumors that have a high proliferative index, which tends to be more aggressive, generally show poorer survival after treatment."
Researchers identified five factors that predict response to immunotherapy, advancing personalized cancer treatment. This could help target therapy more effectively, reducing unnecessary side effects. Immunotherapy has revolutionized cancer treatment by harnessing the immune system to target tumo