IGHG3 and neoplasm: Indeed, as examples, the high expressions of fibroblasts, myofibroblast markers (COL1A1, COL1A2), and B cell markers (IGLC3, IGHG3) were found in our LMD-isolated stroma samples and TCGA tumor samples, but not in our LMD-isolated tumor parts (Figure 2e,f).