IL6 and gastric cancer: NLR, PLR, CRP, and mGPS values are well-accepted indices of systemic inflammatory response, all of which have been shown to have prognostic value for patients with gastric cancer.[15,16] Gastric cancer patients with higher NLR level (≥3) were shown to have a poor prognosis[17] and increased plasma levels of IL-6, IL-8, IL-10.