Abstract
Local accumulation of cells (hypercellularity) in the intima of the arterial wall is recognized as one of the major manifestations of human atherosclerosis, which may result from local cell proliferation (1-3). This assumption was raised both on the comparative analysis of cell number in nondiseased and atherosclerotic areas of human arteries (3-5) and on the basis of the analysis of cell replication in experimental atherosclerosis (for review see ref. 1). In experimental atherosclerosis, cell replication was identified in several models, including mechanical injury of the arteries and experimental hypercholesterolemia. The experimental approach permits the direct determination of DNA replication using radiolabeled precursor-[3H]-thymidine, but it is impossible to demonstrate proliferation in human vessels directly, using standard procedures with labeling of replicating DNA. Villaschi and coworkers (6) labeled human arteries with [3H]-thymidine-ex vivo. They found a low level of replication in both grossly normal tissues and atherosclerotic plaques. In the case of ex vivo labeling, the questions of diffusion and of thymidine incorporation into ex vivo incubated tissue (6) make it difficult to be sure that this procedure reflects replication rates in vivo. Use of proliferation-specific antibodies is advantageous, since proliferating cells are detected directly. Antibodies to the cell-cycle related protein, PCNA (cyclin), are now commonly used in the study of human tissues (7-12). PCNA is an auxiliary protein of mammalian DNA polymerase-δ and is a stable cell-cycle-regulated nuclear protein (synthesized mainly in the S-phase but also present in G1 and G2 phases of the cell cycle), the presence of which correlates directly with a proliferative state of normal cells (7-9).
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References
Ross, R. (1993) The pathogenesis of atherosclerosis: A perspective for the 1990s. Nature 362, 801–809.
Benditt, E. P. and Benditt, J. M. (1993) Evidence for monoclonal origin of human atherosclerotic plaques. Proc. Natl. Acad. Sci. USA 70, 1753–1756.
Geer, J. S. and Haust, M. D. (1972) Smooth muscle cell in atherosclerosis, in Monographs on Atherosclerosis. Karger, Basel.
Orekhov, A. N., Karpova, I. I., Tertov, V. V., Rudchenko, S. A., Andreeva, E. R., Krushinsky, A. V., and Smirnov, V. N. (1984b) Cellular composition of atherosclerotic and uninvolved human aortic subendothelial intima. Light-microscopic study of dissociated aortic cells. Am. J. Pathol. 115, 17–24.
Orekhov, A. N., Andreeva, E. R., Krushinsky, A. V., Novikov, I. D., Tertov, V. V., Nestaiko, G. V., Khashimov, K. A., Repin, V. S., and Smirnov, V. N. (1986) Intimal cells and atherosclerosis. Relationship between the number of intimal cells and major manifestations of atherosclerosis in the human aorta. Am. J. Pathol. 125, 402–415.
Villaschi, S. and Spagnoli, L. G. (1983) Autoradiographic and ultrastructural studies on the human fibro-atheromatous plaque. Atherosclerosis 48, 95–100.
Gerdes, J., Schwab, U., Lemke, H., and Stein, H. (1983) Production of a mouse monoclonal antibody reactive with a human nuclear antigen associated with cell proliferation. Int. J. Cancer 31, 1–20.
Kurki, P., Vanderlaan, M., Dolbeare, F., Gray, J., and Tan, E. M. (1986) Expression of proliferating cell nuclear antigen (PCNA)/cyclin during cell cycle. Exp. Cell Res. 166, 209–219.
Bravo, R., Frank, R., Blundell, P. A., and Macdonald-Bravo, H. (1987) Cyclin/ PCNA is the auxiliary protein of DNA-polymerase-δ. Nature 326, 515–517.
Rekhter, M. D. and Gordon, D. (1995) Active proliferation of different cell types, including lymphocytes, in human atherosclerotic plaques. Am. J. Pathol. 147, 668–677.
Gordon, D., Reidy, M. A., Benditt, E. P., and Schwartz, S. M. (1990) Cell proliferation in human coronary arteries. Proc. Natl. Acad. Sci. USA 87, 4600–4604.
Andreeva, E. R., Mikhailova, I. A., Orekhov, A. N., and Gordon, D. (1998) Cell proliferation in normal and atherosclerotic human aorta: Proliferative splash in lipid-rich lesions. Atherosclerosis 139, 41–48.
Kamel, O. W., Franklin, W. A., Ringus, J. C., and Meyer, J. S. (1989) Thymidine labeling index and Ki-67 growth fraction in lesions of the breast. Am. J. Pathol. 134, 107–113.
Catoletti, G., Becker, M. H., Key, G., Duchrow, M., Schluter, C., Galle, J., and Gerdes, J. (1992) Monoclonal antibodies against recombinant parts of the Ki-67 antigen (MIB 1 and MIB 3) detect proliferating cells in microwave-processed formalin-fixed paraffin sections. J. Pathol. 168, 357–363.
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© 2001 Humana Press Inc., Totowa, NJ
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Andreeva, E.R., Orekhov, A.N. (2001). Evaluation of Cell Proliferation in Human Atherosclerotic Lesions. In: Drew, A.F. (eds) Atherosclerosis. Methods in Molecular Medicine™, vol 52. Humana Press. https://doi.org/10.1385/1-59259-073-X:213
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DOI: https://doi.org/10.1385/1-59259-073-X:213
Publisher Name: Humana Press
Print ISBN: 978-0-89603-751-9
Online ISBN: 978-1-59259-073-5
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