CXCL8 and schizophrenia: Furthermore, heightened neurotoxicity resulting from elevated concentrations of toxic cytokines (e.g., IL-1β, IL-6, IL-8, TNF-αand IFN-γ) and chemokines (e.g., CCL11, CCL2, CXCL8 and CXCL10) is markedly correlated with the schizophrenia phenome (15).