D3 dopamine receptor mRNA is elevated in T cells of schizophrenic patients whereas D4 dopamine receptor mRNA is reduced in CD4+ -T cells

J Neuroimmunol. 2006 Apr;173(1-2):180-7. doi: 10.1016/j.jneuroim.2005.11.018. Epub 2005 Dec 27.

Abstract

The expression of dopamine receptors was examined in purified human neutrophils, monocytes, B cells, natural killer cells and CD4+ - and CD8+ -T lymphocytes by RT-PCR. In healthy subjects, D1 and D2 receptors were not expressed in leukocytes. Real Time PCR for dopamine receptors D3 and D4 disclosed that D3 receptors are expressed in T cells and natural killer cells and D4 receptors in CD4+ -T cells. The comparison of schizophrenic patients with sex- and age-matched controls revealed a significantly higher expression of D3 receptor mRNA in T cells of schizophrenic patients, whereas D4 receptor mRNA in CD4+ -T cells was downregulated.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • B-Lymphocytes / immunology
  • B-Lymphocytes / metabolism
  • CD4-Positive T-Lymphocytes / immunology
  • CD4-Positive T-Lymphocytes / metabolism*
  • CD8-Positive T-Lymphocytes / immunology
  • CD8-Positive T-Lymphocytes / metabolism
  • Female
  • Humans
  • Killer Cells, Natural / immunology
  • Killer Cells, Natural / metabolism
  • Male
  • Monocytes / immunology
  • Monocytes / metabolism
  • Neutrophils / immunology
  • Neutrophils / metabolism
  • RNA, Messenger / analysis
  • Receptors, Dopamine D3 / immunology
  • Receptors, Dopamine D3 / metabolism*
  • Receptors, Dopamine D4 / immunology
  • Receptors, Dopamine D4 / metabolism*
  • Reverse Transcriptase Polymerase Chain Reaction
  • Schizophrenia / immunology*
  • Schizophrenia / metabolism

Substances

  • RNA, Messenger
  • Receptors, Dopamine D3
  • Receptors, Dopamine D4