Furthermore, we measured the protein levels of BAMBI in PBMCs from cancer patients enrolled in a clinical trial at our institution (Concurrent or sequential immunotherapy and radiation therapy in patients with metastatic lung cancer [COSINR] study; ClinicalTrials.gov NCT03223155) (31) and found monocytic MDSCs (mMDSCs) made up a sizable portion of BAMBI-positive cells (Figure 1, A and B, and Supplemental Figure 2D). The gene discussed is BAMBI; the disease is cancer.