Abnormal glycosylation of EAAT1 and EAAT2 in prefrontal cortex of elderly patients with schizophrenia.
Abnormal glycosylation of EAAT1 and EAAT2 in prefrontal cortex of elderly patients with schizophrenia.
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DOI:
10.1016/j.schres.2009.07.025
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发表时间:
2010-03
影响因子:
4.5
通讯作者:
McCullumsmith, Robert E.
中科院分区:
文献类型:
--
作者:
Bauer, Deborah;Haroutunian, Vahram;Meador-Woodruff, James H.;McCullumsmith, Robert E.
The excitatory amino acid transporters (EAATs) are a family of molecules that are essential for regulation of synaptic glutamate levels. The EAATs may also be regulated by N-glycosylation, a posttranslational modification that is critical for many cellular functions including localization in the plasma membrane. We hypothesized that glycosylation of the EAATs is abnormal in schizophrenia. To test this hypothesis, we treated postmortem tissue from the dorsolateral prefrontal and anterior cingulate cortices of patients with schizophrenia and comparison subjects with deglycosylating enzymes. We then measured the resulting shifts in molecular weight of the EAATs using Western blot analysis to determine the mass of glycans cleaved from the transporter. We found evidence for less glycosylation of both EAAT1 and EAAT2 in schizophrenia. We did not detect N-linked glycosylation of EAAT3 in either schizophrenia or the comparison subjects in these regions. Our data suggest an abnormality of posttranslational modification of glutamate transporters in schizophrenia that suggests a decreased capacity for glutamate reuptake.
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影响因子:
5.6
作者:
Raunser, S;Haase, W;Kühlbrandt, W
通讯作者:
Kühlbrandt, W
影响因子:
6
作者:
Jiménez-Huete, A;Lievens, PMJ;Prelli, F
通讯作者:
Prelli, F
影响因子:
5.3
作者:
Kalandadze, A;Wu, Y;Robinson, MB
通讯作者:
Robinson, MB
DOI:
10.1038/npp.2008.215
发表时间:
2009-05
期刊:
Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology
影响因子:
--
作者:
通讯作者:
--
影响因子:
1.7
作者:
Gegelashvili, G;Civenni, G;Schousboe, A
通讯作者:
Schousboe, A