PMID- 18552348 OWN - NLM STAT- MEDLINE DCOM- 20100106 LR - 20211020 IS - 1745-1701 (Electronic) IS - 0586-7614 (Print) IS - 0586-7614 (Linking) VI - 35 IP - 6 DP - 2009 Nov TI - Schizophrenia susceptibility genes directly implicated in the life cycles of pathogens: cytomegalovirus, influenza, herpes simplex, rubella, and Toxoplasma gondii. PG - 1163-82 LID - 10.1093/schbul/sbn054 [doi] AB - Many genes implicated in schizophrenia can be related to glutamatergic transmission and neuroplasticity, oligodendrocyte function, and other families clearly related to neurobiology and schizophrenia phenotypes. Others appear rather to be involved in the life cycles of the pathogens implicated in the disease. For example, aspartylglucosaminidase (AGA), PLA2, SIAT8B, GALNT7, or B3GAT1 metabolize chemical ligands to which the influenza virus, herpes simplex, cytomegalovirus (CMV), rubella, or Toxoplasma gondii bind. The epidermal growth factor receptor (EGR/EGFR) is used by the CMV to gain entry to cells, and a CMV gene codes for an interleukin (IL-10) mimic that binds the host cognate receptor, IL10R. The fibroblast growth factor receptor (FGFR1) is used by herpes simplex. KPNA3 and RANBP5 control the nuclear import of the influenza virus. Disrupted in schizophrenia 1 (DISC1) controls the microtubule network that is used by viruses as a route to the nucleus, while DTNBP1, MUTED, and BLOC1S3 regulate endosomal to lysosomal routing that is also important in viral traffic. Neuregulin 1 activates ERBB receptors releasing a factor, EBP1, known to inhibit the influenza virus transcriptase. Other viral or bacterial components bind to genes or proteins encoded by CALR, FEZ1, FYN, HSPA1B, IL2, HTR2A, KPNA3, MED12, MED15, MICB, NQO2, PAX6, PIK3C3, RANBP5, or TP53, while the cerebral infectivity of the herpes simplex virus is modified by Apolipoprotein E (APOE). Genes encoding for proteins related to the innate immune response, including cytokine related (CCR5, CSF2RA, CSF2RB, IL1B, IL1RN, IL2, IL3, IL3RA, IL4, IL10, IL10RA, IL18RAP, lymphotoxin-alpha, tumor necrosis factor alpha [TNF]), human leukocyte antigen (HLA) antigens (HLA-A10, HLA-B, HLA-DRB1), and genes involved in antigen processing (angiotensin-converting enzyme and tripeptidyl peptidase 2) are all concerned with defense against invading pathogens. Human microRNAs (Hsa-mir-198 and Hsa-mir-206) are predicted to bind to influenza, rubella, or poliovirus genes. Certain genes associated with schizophrenia, including those also concerned with neurophysiology, are intimately related to the life cycles of the pathogens implicated in the disease. Several genes may affect pathogen virulence, while the pathogens in turn may affect genes and processes relevant to the neurophysiology of schizophrenia. For such genes, the strength of association in genetic studies is likely to be conditioned by the presence of the pathogen, which varies in different populations at different times, a factor that may explain the heterogeneity that plagues such studies. This scenario also suggests that drugs or vaccines designed to eliminate the pathogens that so clearly interact with schizophrenia susceptibility genes could have a dramatic effect on the incidence of the disease. FAU - Carter, C J AU - Carter CJ AD - 176 Downs Road, Hastings, East Sussex, TN34 2DZ, UK. chris_car@yahoo.com LA - eng PT - Journal Article PT - Review DEP - 20080613 PL - United States TA - Schizophr Bull JT - Schizophrenia bulletin JID - 0236760 RN - 0 (Nerve Tissue Proteins) RN - 0 (Receptors, Neurotransmitter) SB - IM MH - Brain/microbiology/*physiopathology/virology MH - Cytomegalovirus/genetics/*physiology MH - Female MH - Gene Expression Regulation/genetics MH - Genes, Regulator/genetics/physiology MH - Genetic Predisposition to Disease/*genetics MH - Humans MH - Nerve Tissue Proteins/*genetics MH - Neuronal Plasticity/genetics MH - Oligodendroglia/physiology MH - Orthomyxoviridae/genetics/*physiology MH - Pregnancy MH - Prenatal Exposure Delayed Effects/genetics/microbiology/virology MH - Receptors, Neurotransmitter/genetics MH - Rubella virus/genetics/*physiology MH - Schizophrenia/*genetics/microbiology/virology MH - Signal Transduction/*genetics MH - Simplexvirus/genetics/*physiology MH - Toxoplasma/genetics/*physiology MH - Transcription, Genetic/genetics PMC - PMC2762619 EDAT- 2008/06/17 09:00 MHDA- 2010/01/07 06:00 PMCR- 2010/11/01 CRDT- 2008/06/17 09:00 PHST- 2008/06/17 09:00 [pubmed] PHST- 2010/01/07 06:00 [medline] PHST- 2008/06/17 09:00 [entrez] PHST- 2010/11/01 00:00 [pmc-release] AID - sbn054 [pii] AID - 10.1093/schbul/sbn054 [doi] PST - ppublish SO - Schizophr Bull. 2009 Nov;35(6):1163-82. doi: 10.1093/schbul/sbn054. Epub 2008 Jun 13.