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. 1990 Jun;136(6):1437–1444.

Macromolecular synthesis in the isolated rat myointima in vitro.

J F Hartmann 1, S L Chen 1, G S Young 1
PMCID: PMC1877577  PMID: 2356867

Abstract

The myointima, which forms within the lumen of the carotid artery of the rat in response to the removal of the endothelium by a balloon catheter, could be extruded from the vessel as early as 6 days after denudation. The mean concentration of DNA in the isolated myointima increased as the myointima grew in vivo until 12 to 14 days after denudation, when the arterial lumen was filled with the myointima; thereafter the mean concentration of DNA declined. DNA and protein synthesis, incorporation of 3H-glucosamine and 3H-fucose into macromolecules, occurred in the myointima during incubation in vitro in the absence of fetal bovine serum, and with the exception of 3H-glucosamine, failed to be stimulated by it. These data indicate that the cells of the intact myointima do not require exogenous macromolecular growth factors for the synthesis of macromolecules in vitro.

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Selected References

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  1. Castellot J. J., Jr, Addonizio M. L., Rosenberg R., Karnovsky M. J. Cultured endothelial cells produce a heparinlike inhibitor of smooth muscle cell growth. J Cell Biol. 1981 Aug;90(2):372–379. doi: 10.1083/jcb.90.2.372. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Chamley-Campbell J. H., Campbell G. R., Ross R. Phenotype-dependent response of cultured aortic smooth muscle to serum mitogens. J Cell Biol. 1981 May;89(2):379–383. doi: 10.1083/jcb.89.2.379. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. Chamley-Campbell J., Campbell G. R., Ross R. The smooth muscle cell in culture. Physiol Rev. 1979 Jan;59(1):1–61. doi: 10.1152/physrev.1979.59.1.1. [DOI] [PubMed] [Google Scholar]
  4. Clowes A. W., Clowes M. M. Kinetics of cellular proliferation after arterial injury. IV. Heparin inhibits rat smooth muscle mitogenesis and migration. Circ Res. 1986 Jun;58(6):839–845. doi: 10.1161/01.res.58.6.839. [DOI] [PubMed] [Google Scholar]
  5. Clowes A. W., Karnowsky M. J. Suppression by heparin of smooth muscle cell proliferation in injured arteries. Nature. 1977 Feb 17;265(5595):625–626. doi: 10.1038/265625a0. [DOI] [PubMed] [Google Scholar]
  6. Clowes A. W., Reidy M. A., Clowes M. M. Kinetics of cellular proliferation after arterial injury. I. Smooth muscle growth in the absence of endothelium. Lab Invest. 1983 Sep;49(3):327–333. [PubMed] [Google Scholar]
  7. Clowes A. W., Schwartz S. M. Significance of quiescent smooth muscle migration in the injured rat carotid artery. Circ Res. 1985 Jan;56(1):139–145. doi: 10.1161/01.res.56.1.139. [DOI] [PubMed] [Google Scholar]
  8. Fishman J. A., Ryan G. B., Karnovsky M. J. Endothelial regeneration in the rat carotid artery and the significance of endothelial denudation in the pathogenesis of myointimal thickening. Lab Invest. 1975 Mar;32(3):339–351. [PubMed] [Google Scholar]
  9. Goldberg I. D., Stemerman M. B., Schnipper L. E., Ransil B. J., Crooks G. W., Fuhro R. L. Vascular smooth muscle cell kinetics: a new assay for studying patterns of cellular proliferation in vivo. Science. 1979 Aug 31;205(4409):920–922. doi: 10.1126/science.472713. [DOI] [PubMed] [Google Scholar]
  10. Gospodarowicz D., Hirabayashi K., Giguère L., Tauber J. P. Factors controlling the proliferative rate, final cell density, and life span of bovine vascular smooth muscle cells in culture. J Cell Biol. 1981 Jun;89(3):568–578. doi: 10.1083/jcb.89.3.568. [DOI] [PMC free article] [PubMed] [Google Scholar]
  11. Grünwald J., Haudenschild C. C. Intimal injury in vivo activates vascular smooth muscle cell migration and explant outgrowth in vitro. Arteriosclerosis. 1984 May-Jun;4(3):183–188. doi: 10.1161/01.atv.4.3.183. [DOI] [PubMed] [Google Scholar]
  12. Hartmann J. F., Hutchison C. F., Jewell M. E. Pig bronchial mucous membrane: a model system for assessing respiratory mucus release in vitro. Exp Lung Res. 1984;6(1):59–70. doi: 10.3109/01902148409087895. [DOI] [PubMed] [Google Scholar]
  13. Hassler O. The origin of the cells constituting arterial intima thickening. An experimental autoradiographic study with the use of H3-thymidine. Lab Invest. 1970 Apr;22(4):286–293. [PubMed] [Google Scholar]
  14. Hoover R. L., Rosenberg R., Haering W., Karnovsky M. J. Inhibition of rat arterial smooth muscle cell proliferation by heparin. II. In vitro studies. Circ Res. 1980 Oct;47(4):578–583. doi: 10.1161/01.res.47.4.578. [DOI] [PubMed] [Google Scholar]
  15. Jackman R. W., Anderson S. K., Sheridan J. D. The aortic intima in organ culture. Response to culture conditions and partial endothelial denudation. Am J Pathol. 1988 Nov;133(2):241–251. [PMC free article] [PubMed] [Google Scholar]
  16. Labarca C., Paigen K. A simple, rapid, and sensitive DNA assay procedure. Anal Biochem. 1980 Mar 1;102(2):344–352. doi: 10.1016/0003-2697(80)90165-7. [DOI] [PubMed] [Google Scholar]
  17. Ross R., Glomset J. A. The pathogenesis of atherosclerosis (first of two parts). N Engl J Med. 1976 Aug 12;295(7):369–377. doi: 10.1056/NEJM197608122950707. [DOI] [PubMed] [Google Scholar]
  18. Spaet T. H., Stemerman M. B., Veith F. J., Lejnieks I. Intimal injury and regrowth in the rabbit aorta; medial smooth muscle cells as a source of neointima. Circ Res. 1975 Jan;36(1):58–70. doi: 10.1161/01.res.36.1.58. [DOI] [PubMed] [Google Scholar]
  19. Stemerman M. B., Weinstein R., Rowe J. W., Maciag T., Fuhro R., Gardner R. Vascular smooth muscle cell growth kinetics in vivo in aged rats. Proc Natl Acad Sci U S A. 1982 Jun;79(12):3863–3866. doi: 10.1073/pnas.79.12.3863. [DOI] [PMC free article] [PubMed] [Google Scholar]
  20. Thomas W. A., Kim D. N., Lee K. T., Reiner J. M., Schmee J. Population dynamics of arterial cells during atherogenesis. XIII. Mitogenic and cytotoxic effects of a hyperlipidemic (HL) diet on cells in advanced lesions in the abdominal aortas of swine fed an HL diet for 270-345 days. Exp Mol Pathol. 1983 Dec;39(3):257–270. doi: 10.1016/0014-4800(83)90056-4. [DOI] [PubMed] [Google Scholar]

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