Regulation of the human serotonin transporter by interleukin-1β

Sammanda Ramamoorthy, Jayanthi D. Ramamoorthy, Puttur D Prasad, Ganapathy K. Bhat, Virendra B. Mahesh, Frederick H. Leibach, Vadivel Ganapathy

Research output: Contribution to journalArticle

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Abstract

The serotonin transporter expressed in brain, platelets, and placenta is a primary target for antidepressants, cocaine, and amphetamines. Here we report that interleukin-1β is a potent regulator of the expression of this transporter. The activity of the serotonin transporter in human JAR choriocarcinoma cells is stimulated by this cytokine and the stimulation is accompanied by an increase in the steady state levels of the transporter mRNAs and in the transporter density. The increase in mRNA levels is effectively blocked by actinomycin D. The stimulatory effect of interleukin-1β is not associated with any change in the cellular levels of cAMP, indicating involvement of a cAMP-independent pathway. Even though cholera toxin, which is known to increase cAMP levels, also upregulates the serotonin transporter in JAR cells, the effects of interleukin-1β and cholera toxin on the transporter activity are additive. This constitutes the first report on the identification of a physiologically occurring hormone/cytokine which upregulates the expression of the human serotonin transporter gene.

Original languageEnglish (US)
Pages (from-to)560-567
Number of pages8
JournalBiochemical and Biophysical Research Communications
Volume216
Issue number2
DOIs
StatePublished - Jan 1 1995

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Serotonin Plasma Membrane Transport Proteins
Interleukin-1
Cholera Toxin
Up-Regulation
Cytokines
Amphetamines
Messenger RNA
Choriocarcinoma
Dactinomycin
Platelets
Cocaine
Placenta
Antidepressive Agents
Brain
Blood Platelets
Genes
Hormones

ASJC Scopus subject areas

  • Biophysics
  • Biochemistry
  • Molecular Biology
  • Cell Biology

Cite this

Ramamoorthy, S., Ramamoorthy, J. D., Prasad, P. D., Bhat, G. K., Mahesh, V. B., Leibach, F. H., & Ganapathy, V. (1995). Regulation of the human serotonin transporter by interleukin-1β. Biochemical and Biophysical Research Communications, 216(2), 560-567. https://doi.org/10.1006/bbrc.1995.2659

Regulation of the human serotonin transporter by interleukin-1β. / Ramamoorthy, Sammanda; Ramamoorthy, Jayanthi D.; Prasad, Puttur D; Bhat, Ganapathy K.; Mahesh, Virendra B.; Leibach, Frederick H.; Ganapathy, Vadivel.

In: Biochemical and Biophysical Research Communications, Vol. 216, No. 2, 01.01.1995, p. 560-567.

Research output: Contribution to journalArticle

Ramamoorthy, S, Ramamoorthy, JD, Prasad, PD, Bhat, GK, Mahesh, VB, Leibach, FH & Ganapathy, V 1995, 'Regulation of the human serotonin transporter by interleukin-1β', Biochemical and Biophysical Research Communications, vol. 216, no. 2, pp. 560-567. https://doi.org/10.1006/bbrc.1995.2659
Ramamoorthy, Sammanda ; Ramamoorthy, Jayanthi D. ; Prasad, Puttur D ; Bhat, Ganapathy K. ; Mahesh, Virendra B. ; Leibach, Frederick H. ; Ganapathy, Vadivel. / Regulation of the human serotonin transporter by interleukin-1β. In: Biochemical and Biophysical Research Communications. 1995 ; Vol. 216, No. 2. pp. 560-567.
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