TREM1 and non-small cell lung carcinoma: Based on analyses made of fresh tumor tissues and the matching non-tumoral tissue samples from 40 non-treated patients with NSCLC, it was shown that TREM-1 rates on tumor tissue-derived monocytes/macrophages were decreased in comparison to TREM-1 levels detected on monocytes from peripheral blood of patients suffering from NSCLC (30).