The difference in serum proteomes in schizophrenia and bipolar disorder
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ABSTRACT: Purpose of study is revealing significant differences in serum proteomes in schizophrenia, bipolar disorder (BD), and matched healthy controls. The sample preparation included affinity removing of six major proteins, separation by 1D electrophoresis, in-gel tryptic hydrolysis, and LC-MS/MS peptide analysis using LTQ Orbitrap Velos mass spectrometer. When comparing proteome profiles, different unique protein sets were revealed (absent in other groups): 22 proteins typical for schizophrenia, and 20 – for BD. Protein set in schizophrenia was mostly associated with nucleic acid and protein metabolism, immune response, cell communication, and cell growth and maintenance. Protein set in BD was mostly associated with cell growth and maintenance, nucleic acid metabolism regulation, immune response, protein metabolism, transport and cell communication. Concentrations of ankyrin repeat domain-containing protein 12 (ANKRD12), coagulation factor XIII, and cadherin 5 in serum samples were determined by ELISA. Significant difference between three groups was revealed in ANKRD12 concentration (p=0.02), with maximum elevation of ANKRD12 concentration (median level) in schizophrenia followed by BD. Cadherin 5 concentration differed significantly (p=0.035) between schizophrenic patients with prevailing positive symptoms (4.78 [2.71;7.12] ng/ml) and those with prevailing negative symptoms (1.86 [0.001;4.11] ng/ml). Our results are presumably useful for discovering the new pathways involved in endogenous psychotic disorders.
INSTRUMENT(S): LTQ Orbitrap Velos
ORGANISM(S): Homo Sapiens (human)
TISSUE(S): Blood Plasma
SUBMITTER: Alexandr Seregin
LAB HEAD: Svetlana Ivanova
PROVIDER: PXD009219 | Pride | 2019-11-12
REPOSITORIES: Pride
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