2019-06-018 - Biomarker-CDx - Novel biomarker for precision medicine
We have discovered a new biomarker useful to identify cancer patients with a TGFβ-activated microenvironment in colorectal cancer (CRC) and other tumor types. This biomarker can be used for personalized medicine purposes as follows: i. by selecting those patients able to respond to TGFβ signaling pathway inhibitors; ii. by selecting patients non-responders to immune checkpoint inhibitors (i.e anti-PDL1, anti PD1), due to the presence of a modified microenvironment by high TGFβ levels. The latter set of patients may be selected to prescribe therapy with immune checkpoint inhibitors such as anti-PDL1 and anti-PD1 in combination with TGFβ signaling pathway inhibitors.
The biomarker can be also used as a prognostic method to better classify the aggressiveness of CRC, particularly according to the recently proposed CMS classification (Consensus Molecular Subtype, Guinney et al., Nature Medicine, 2015), risk of recurrence and metastasis. Thus, the biomarker covers a high unmet medical need which is the devise of better classifiers of cancer stage and aggressiveness.