Abstract:
:Epidermal growth factor (EGF) comprises a structurally related family of proteins containing heparin-binding EGF-like growth factor (HB-EGF) and transforming growth factor alpha (TGFalpha) that regulates the development of dopaminergic neurons as well as monoamine metabolism. We assessed the contribution of EGF to schizophrenia by measuring EGF family protein levels in postmortem brains and in fresh serum of schizophrenic patients and control subjects. EGF protein levels were decreased in the prefrontal cortex and striatum of schizophrenic patients, whereas the levels of HB-EGF and TGFalpha were not significantly different in any of the regions examined. Conversely, EGF receptor expression was elevated in the prefrontal cortex. Serum EGF levels were markedly reduced in schizophrenic patients, even in young, drug-free patients. Chronic treatment of animals with the antipsychotic drug haloperidol had no influence on EGF levels in the brain or serum. These findings suggest that there is abnormal EGF production in various central and peripheral tissues of patients with both acute and chronic schizophrenia. EGF might thus provide a molecular substrate for the pathologic manifestation of the illness, although additional studies are required to determine a potential link between impaired EGF signaling and the pathology/etiology of schizophrenia.
journal_name
Mol Psychiatryjournal_title
Molecular psychiatryauthors
Futamura T,Toyooka K,Iritani S,Niizato K,Nakamura R,Tsuchiya K,Someya T,Kakita A,Takahashi H,Nawa Hdoi
10.1038/sj.mp.4001081subject
Has Abstractpub_date
2002-01-01 00:00:00pages
673-82issue
7eissn
1359-4184issn
1476-5578journal_volume
7pub_type
杂志文章abstract::APAF1, encoding the protein apoptosis protease activating factor 1 (Apaf-1), has recently been established as a chromosome 12 gene conferring predisposition to major depression in humans. The molecular phenotypes of Apaf-1 variants were determined by in vitro reconstruction of the apoptosome complex in which Apaf-1 ac...
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更新日期:2000-09-01 00:00:00
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pub_type: 杂志文章,已发布勘误
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更新日期:2019-03-01 00:00:00
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