» Articles » PMID: 6325342

Rheumatoid Synovial Cell Hormone Responses Modulated by Cell-cell Interactions

Overview
Journal Inflammation
Date 1984 Mar 1
PMID 6325342
Citations 4
Authors
Affiliations
Soon will be listed here.
Abstract

Cellular interactions within the rheumatoid synovium are likely to be responsible for the destructive properties of this tissue. The responses to hormones which regulate connective tissue metabolism may also be influenced by these cell-cell interactions. To determine the effect of cellular interactions on responses to hormones, human peripheral blood mononuclear cells were cocultured with adherent rheumatoid synovial cells. Coculture resulted in a decrease in response to prostaglandin E2 as assessed by a reduction in the magnitude of the acute prostaglandin-induced cyclic AMP response. In contrast, coculture resulted in an increase in the magnitude of the acute parathyroid hormone-induced cyclic AMP response. The decrease in response to prostaglandin was reversed by the presence of indomethacin during the preincubation, whereas indomethacin had no effect on the cyclic AMP response to parathyroid hormone. Increases in endogenous synovial cell prostaglandin production (stimulated by soluble factors released by the mononuclear cells) accounted for the subsequent decrease in the response to exogenous prostaglandin. The increase in cyclic AMP response to parathyroid hormone could not be explained by a soluble factor and was independent of ambient prostaglandin levels.

Citing Articles

Cytokines and other mediators in rheumatoid arthritis.

Dayer J, Demczuk S Springer Semin Immunopathol. 1984; 7(4):387-413.

PMID: 6395411 DOI: 10.1007/BF00201968.


Interleukin 1 suppresses expression of cartilage-specific types II and IX collagens and increases types I and III collagens in human chondrocytes.

Goldring M, Birkhead J, Sandell L, Kimura T, Krane S J Clin Invest. 1988; 82(6):2026-37.

PMID: 3264290 PMC: 442785. DOI: 10.1172/JCI113823.


Human giant cell tumors of bone identification and characterization of cell types.

Goldring S, Roelke M, Petrison K, Bhan A J Clin Invest. 1987; 79(2):483-91.

PMID: 3027126 PMC: 424109. DOI: 10.1172/JCI112838.


Heterogeneity in hormone responses and patterns of collagen synthesis in cloned dermal fibroblasts.

Goldring S, Stephenson M, DOWNIE E, Krane S, Korn J J Clin Invest. 1990; 85(3):798-803.

PMID: 2155928 PMC: 296497. DOI: 10.1172/JCI114506.

References
1.
Robertson R, Westcott K, Storm D, Rice M . Down-regulation in vivo of PGE receptors and adenylate cyclase stimulation. Am J Physiol. 1980; 239(1):E75-80. DOI: 10.1152/ajpendo.1980.239.1.E75. View

2.
Catt K, Harwood J, Aguilera G, Dufau M . Hormonal regulation of peptide receptors and target cell responses. Nature. 1979; 280(5718):109-16. DOI: 10.1038/280109a0. View

3.
Wahl L, Olsen C, Sandberg A, Mergenhagen S . Prostaglandin regulation of macrophage collagenase production. Proc Natl Acad Sci U S A. 1977; 74(11):4955-8. PMC: 432076. DOI: 10.1073/pnas.74.11.4955. View

4.
Lefkowitz R, Mullikin D, Wood C, Gore T, Mukherjee C . Regulation of prostaglandin receptors by prostaglandins and guanine nucleotides in frog erythrocytes. J Biol Chem. 1977; 252(15):5295-303. View

5.
Johnson G, Wolfe B, Harden T, Molinoff P, PERKINS J . Role of beta-adrenergic receptors in catecholamine-induced desensitization of adenylate cyclase in human astrocytoma cells. J Biol Chem. 1978; 253(5):1472-80. View