Interleukin-1 upregulates decorin production by arterial smooth muscle cells

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Arteriosclerosis, Thrombosis, and Vascular Biology. 1994;14:1032-1039

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ARTICLES

Interleukin-1 upregulates decorin production by arterial smooth muscle cells

IJ Edwards, H Xu, MJ Wright and WD Wagner
Department of Comparative Medicine, Bowman Gray School of Medicine, Wake Forest University, Winston-Salem, NC 27157-1040.

An increase in dermatan sulfate-proteoglycan (DSPG) production occurs in cultured aortic smooth muscle cells exposed to macrophage- conditioned media, an effect that is abrogated by an antibody to interleukin-1 (IL-1). To determine which DSPG gene was regulated, cultured arterial smooth muscle cells from monkeys (Macaca fascicularis) were treated with 0 to 500 pg/mL human recombinant IL-1 alpha or IL-1 beta in the presence of [35S]sulfate and [3H]serine. Proteoglycans were isolated from the culture media and purified by selective precipitation and chromatography. Both recombinant IL-1 alpha and IL-1 beta caused a dose-response increase in DSPG production. Northern blot analysis of mRNA isolated from the cells identified 1.6- kb and 2.6-kb transcripts homologous to the cDNA encoding human decorin and biglycan, respectively. IL-1 treatment resulted in increases in the steady-state level of decorin mRNA as high as fourfold to sixfold at 500 pg/mL recombinant IL-beta. By contrast, mRNA for biglycan was unchanged. Western blotting confirmed a specific enhancement of the 45- kD decorin core protein. These data indicate that IL-1 has differential effects on the two DSPG genes and suggest that macrophages may be capable of modifying the extracellular matrix of the artery wall by enhancing smooth muscle cell decorin production.

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				J. W. Fischer, S. A. Steitz, P. Y. Johnson, A. Burke, F. Kolodgie, R. Virmani, C. Giachelli, and T. N. Wight Decorin Promotes Aortic Smooth Muscle Cell Calcification and Colocalizes to Calcified Regions in Human Atherosclerotic Lesions Arterioscler Thromb Vasc Biol, December 1, 2004; 24(12): 2391 - 2396. [Abstract] [Full Text] [PDF]

				M. Y. Chang, C. Tsoi, T. N. Wight, and A. Chait Lysophosphatidylcholine Regulates Synthesis of Biglycan and the Proteoglycan Form of Macrophage Colony Stimulating Factor Arterioscler Thromb Vasc Biol, May 1, 2003; 23(5): 809 - 815. [Abstract] [Full Text] [PDF]

				P. Sartipy, B. Johansen, K. Gasvik, and E. Hurt-Camejo Molecular Basis for the Association of Group IIA Phospholipase A2 and Decorin in Human Atherosclerotic Lesions Circ. Res., March 31, 2000; 86(6): 707 - 714. [Abstract] [Full Text] [PDF]

				W. X. Wu, Q. Zhang, N. Unno, J. B. Derks, and P. W. Nathanielsz Characterization of decorin mRNA in pregnant intrauterine tissues of the ewe and regulation by steroids Am J Physiol Cell Physiol, January 1, 2000; 278(1): C199 - C206. [Abstract] [Full Text] [PDF]

				R. A. Shirk, F. C. Church, and W. D. Wagner Arterial Smooth Muscle Cell Heparan Sulfate Proteoglycans Accelerate Thrombin Inhibition by Heparin Cofactor II Arterioscler Thromb Vasc Biol, September 1, 1996; 16(9): 1138 - 1146. [Abstract] [Full Text]

				B. E. Rolfe, J. H. Campbell, N. J. Smith, M. W. Cheong, and G. R. Campbell T Lymphocytes Affect Smooth Muscle Cell Phenotype and Proliferation Arterioscler Thromb Vasc Biol, August 1, 1995; 15(8): 1204 - 1210. [Abstract] [Full Text]