Prognostic value of preoperative inflammatory markers in patients with different molecular subgroups of WHO grade II and III diffuse gliomas

Abstract Objective: To determine the prognostic implications of these immune indices in WHO Grade II & III gliomas and different molecular subgroups.Methods : Clinical data from 214 newly diagnosed WHO grade II and III diffuse glioma patients were studied retrospectively. Cut-off values were determined by X-tile software. IDH and TERT promotor mutations were detected by gene sequencing, and 1p19q co-deletion was estimated via fluorescence in situ hybridization.Results: NLR was verified to be an independent prognostic marker for OS in WHO grade II and III diffuse gliomas. NLR level was also associated with OS of IDH mutant subgroup, TERT promotor mutant subgroup, 1p19q intact subgroup and with PFS of 1p19q intact subgroup. LMR level was associated with OS of WHO grade II and III diffuse gliomas and TERT promotor mutant subgroup. dNLR was verified to be an independent prognostic marker for OS in TERT promotor wild-type subgroup, 1p19q intact subgroup, IDH mutant TERT promotor wild-type 1p19q intact subgroup and for PFS of 1p19q intact subgroup. dNLR was associated with OS of WHO grade II and III diffuse gliomas and IDH mutant subgroup. 1p19q co-deletion was correlated with low NLR. Conclusion: Preoperative NLR, LMR and dNLR levels were helpful to forecast prognosis in patients with WHO grade II and III gliomas and different genetic phenotypes.