PMID- 22681170 OWN - NLM STAT- MEDLINE DCOM- 20130531 LR - 20190728 IS - 1873-4286 (Electronic) IS - 1381-6128 (Linking) VI - 18 IP - 36 DP - 2012 TI - Inflammatory cytokines, growth factors, and depression. PG - 5920-35 AB - There is a plausible role for cytokines, brain-derived neurotrophic factor (BDNF), and their interaction in major depressive disorder's (MDD) etiology. This review includes (i) briefly defining cytokines, (ii) a discussion of theories for why they may affect brain function, (iii) cross-sectional associations between cytokines and MDD, (iv) the effect of antidepressants on cytokines, (v) the behavioral effects of cytokines administration to humans, (vi) the behavior effects of their administration to animal models, and (vii) potential neurochemical systems influenced by cytokines. The role of BDNF is then briefly examined, along with a review of several studies that have examined a Val/Met polymorphism in the BDNF gene. The bidirectional relationship between BDNF and cytokines is subsequently discussed. Potential ramifications for MDD treatment that are appraised include (i) use of cytokine biomarkers for identifying specific populations for targeted MDD therapy, (ii) the use of medications that directly antagonize the role of inflammatory cytokines, (iii) potential indirect modifiers of cytokine activity, and (iv) possible downstream intracellular second messenger targets. FAU - Lotrich, Francis AU - Lotrich F AD - Western Psychiatric Institute and Clinics, Pittsburgh, PA 15213, USA. lotrichfe@upmc.edu LA - eng GR - MH090250/MH/NIMH NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Review PL - United Arab Emirates TA - Curr Pharm Des JT - Current pharmaceutical design JID - 9602487 RN - 0 (Anti-Inflammatory Agents) RN - 0 (Antidepressive Agents) RN - 0 (Biomarkers) RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Cytokines) RN - 0 (Inflammation Mediators) SB - IM MH - Animals MH - Anti-Inflammatory Agents/chemistry/therapeutic use MH - Antidepressive Agents/chemistry/therapeutic use MH - Biomarkers/metabolism MH - Brain/drug effects/immunology/*metabolism MH - Brain-Derived Neurotrophic Factor/genetics/*metabolism MH - Cytokines/antagonists & inhibitors/*metabolism MH - Depressive Disorder, Major/drug therapy/genetics/immunology/*metabolism/psychology MH - Drug Design MH - Humans MH - Inflammation Mediators/antagonists & inhibitors/*metabolism MH - Polymorphism, Genetic MH - Signal Transduction/drug effects EDAT- 2012/06/12 06:00 MHDA- 2013/06/01 06:00 CRDT- 2012/06/12 06:00 PHST- 2012/05/02 00:00 [received] PHST- 2012/05/16 00:00 [accepted] PHST- 2012/06/12 06:00 [entrez] PHST- 2012/06/12 06:00 [pubmed] PHST- 2013/06/01 06:00 [medline] AID - CPD-EPUB-20120606-11 [pii] AID - 10.2174/138161212803523680 [doi] PST - ppublish SO - Curr Pharm Des. 2012;18(36):5920-35. doi: 10.2174/138161212803523680.