Opposite effects of the catecholamines dopamine and norepinephrine on murine polyclonal B-cell activation

doi:10.1016/0162-3109(88)90001-X

Immunopharmacology

Volume 16, Issue 3, November–December 1988, Pages 125-137

Immunopharmacology

https://doi.org/10.1016/0162-3109(88)90001-X Get rights and content

Abstract

The effects of dopamine (DA) and norepinephrine (NE) on polyclonal B-cell activation induced in vitro by lipopolysaccharide (LPS) and on cyclic AMP response in BALB/c mouse lymphocytes were investigated. DA at non-cytotoxic concentrations (5 × 10⁻⁵ M and 10⁻⁴ M) inhibited, but NE (5 × 10⁻⁶ M to 5 × 10⁻⁵ M) enhanced LPS-stimulated proliferation and Ig synthesis by lymphocytes from spleen, mesenteric lymph nodes and Peyer's patches. Depletion of adherent cells and T lymphocytes did not prevent the respective effects of DA and NE, and the drug effects were reproduced on nude ( $nu^{+} nu^{+}$ )spleen cell proliferation and differentiation stimulated by LPS. The inhibitory effect of DA persisted even if the drug was added as late as 48 h after the mitogen. In contrast, NE was no longer stimulatory if added 2 h later than LPS. The effect of DA was blocked neither by DA1 or DA2 dopaminergic antagonists (SCH 23390 and sulpiride respectively), nor by α-or β-adrenoceptor antagonists (phentolamine and propranolol respectively). Enhancement by NE was antagonized by propranolol, but not by phentolamine. Both DA and NE raised the level of cyclic AMP in unfractionated spleen cells as well as in B-enriched spleen cells but DA was less potent than NE. Pre-incubation of spleen lymphocytes with LPS for 1–24 h did not alter their cyclic AMP response to NE but it prevented the loss of sensitivity to DA after 4 or 24 h of in vitro incubation. The lysosomotropic agent chloroquine induced suppression of LPS-stimulated proliferation and Ig production with a dose-response profile similar to that of DA. Altogether, these results indicate that the catecholamines can exert opposite effects on polyclonal B-cell activation by acting directly on B lymphocytes.

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Opposite effects of the catecholamines dopamine and norepinephrine on murine polyclonal B-cell activation

Abstract

Clin Immunol Immunopathol

Biochem Pharmac

Trends Pharmacol Sci

Life Sci

Life Sci

Eur J Pharmacol

Life Sci

J Neuroimmunol

J Immunol Methods

Biochem Biophys Res Commun

In vitro uptake of L-dopa and catecholamines into the epidermal Langerhans cell

Acta Dermatovener

Differences in cyclic AMP changes after stimulation by prostaglandins and isoproterenol in lymphocyte subpopulations

J Clin Invest

Neurotransmitters, hormones, and cyclic nucleotides in lymphocyte regulation

Requirement for macrophages or for macrophage- or T cell-derived factors in the mitogenic stimulation of murine B lymphocytes by lipopolysaccharides

Eur J Immunol

A comparison of dimaprit, nordimaprit, methylamine and chloroquine as inhibitors of mitogen-induced lymphocyte activation

Br J Pharmac

Molecular mechanism of mitogen action: processing of receptor induced by epidermal growth factor

B-lymphocyte signal traduction in response to anti-immunoglobulin and bacterial lipopolysaccharide

Immunol Rev