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Inicio Clínica e Investigación en Arteriosclerosis Lipid peroxidation products upregulate c-fos and TF expression in human vascular...
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Vol. 14. Issue 4.
Pages 172-176 (January 2002)
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Vol. 14. Issue 4.
Pages 172-176 (January 2002)
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Lipid peroxidation products upregulate c-fos and TF expression in human vascular smooth muscle cells
Los productos derivados de la peroxidación lipídica estimulan la expresión de c-fos y TF en células musculares lisas humanas
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A. Cabré, J. Girona, J.C. Vallvé, L. Masana
Corresponding author
lmm@fmcs.urv.es

Correspondencia: Unitat de Recerca de Lípids i Arteriosclerosi-Fundació IRCIS. Facultat de Medicina. Universitat Rovira i Virgili. Sant Llorenç, 21. 43201 Reus. Spain
Unitat de Recerca de Lípids i Arteriosclerosi-Fundació IRCIS. Facultat de Medicina. Universitat Rovira i Virgili. Reus. Spain
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Background

Regulation of vascular smooth muscle cells (VSMC) by lipid peroxidation products play an important role in the development of atherosclerosis. Proliferation and thrombosis are two relevant atheromatous events related to VSMC response to oxidative stress

Objective

The aim of this study is to evaluate the effect of lipid peroxidation on c-fos, c-jun and TF expression in human VSMC (hVSMC)

Methods

We tested the effect of different degrees of LDL modification (native, minimally modified and extensively oxidized), two apolar aldehydes: hexanal and 2,4-decadienal (2,4-DDE) and the hydroxyaldehyde, 4-hydroxynonenal (4-HNE) on some gene expressions in hVSMC. c-fos, c-jun and TF mRNA expression were estimated by RT-PCR and TF antigen was determined by ELISA

Results

2,4-DDE and hexanal, two apolar aldehydes that are present in extensively oxidized LDL (oxLDL), increased c-fos mRNA expression in HVSMC, while 4-HNE showed a slight decrease. None of the studied molecules were able to produce a significant change on c-jun mRNA levels. The major effect on c-fos expression was observed by 2,4-DDE, an aldehyde that also increased TF mRNA and protein expression

Conclusion

The results of this study show that 2,4-DDE and hexanal upregulate c-fos expression in HVSMC. 2,4-DDE also increases TF expression in these cells. Our findings suggest that apolar aldehydes could contribute to the development of atherosclerotic lesions due to the prothrombotic properties observed

Key words:
Lipid peroxidation
TF
c-fos
c-jun
hVSMC
Introducción

La regulación de las células musculares lisas por productos derivados de la peroxidación lipídica tiene un papel importante en el desarrollo de la arteriosclerosis. La proliferación y la trombosis son dos acontecimientos ateromatosos relacionados con la respuesta de las células musculares lisas (CML) al estrés oxidativo

Objetivo

El objetivo de este estudio es evaluar el efecto de la peroxidación lipídica sobre la expresión de c-fos, c-jun y TF en CML humanas

Métodos

Hemos probado el efecto de diferentes grados de LDL modificada (nativa, mínimamente modificada y extensamente oxidada), dos aldehídos apolares: hexanal y 2,4-decadienal (2,4-DDE) y el hidroxialdehído, 4-hidroxinonenal (4-HNE) sobre la expresión de determinados genes en CML humanas. La expresión de mRNA de c-fos, c-jun y TF se estimó por RT-PCR y el antígeno del TF se determinó por ELISA

Resultados

El 2,4-DDE y el hexanal, dos aldehídos apolares presentes en la LDL extensamente oxidada (oxLDL), aumentaron la expresión de mRNA de c-fos en CML, mientras que el 4-HNE mostró un ligero descenso. Ninguna de las moléculas estudiadas fueron capaces de producir un cambio significativo sobre los valores de mRNA de c-jun. El principal efecto sobre c-fos se observó con el 2,4-DDE, aldehído que también incrementó la expresión de mRNA y de proteína del TF

Conclusión

Los resultados de este estudio muestran que el 2,4-DDE y el hexanal estimulan la expresión de c-fos en CML. El 2,4-DDE, además, aumenta la expresión de TF en estas células. Estos resultados sugieren que los aldehídos apolares podrían contribuir al desarrollo de las lesiones de arterosclerosis debido a las propiedades protrombóticas observadas

Palabras clave:
Peroxidación lipídica
TF
c-fos
c-jun
CML
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References
[1.]
A.J. Lusis.
Atherosclerosis.
Nature, 407 (2000), pp. 233-241
[2.]
S. Ylä-Herttuala, W. Palinski, M.E. Rosefeld, S. Parthasarathy, T.E. Carew, S. Butler, et al.
Evidence for the presence of oxidatively modified low density lipoprotein in atherosclerotic lesions of rabbit and man.
J Clin Invest, 84 (1989), pp. 1086-1095
[3.]
H. Esterbauer, P. Ramos.
Chemistry and pathophysiology of oxidation of LDL.
Rev Phisiol Biochem Pharmacol, 127 (1995), pp. 31-64
[4.]
A.W. Hahn, F. Ferracin, F.R. Buhler, A. Pletscher.
Modulation of gene expression by high and low density lipoproteins in human vascular smooth muscle cells.
Biochem Biophys Res Commun, 178 (1991), pp. 1465-1471
[5.]
G.N. Rao, B.C. Berk.
Active oxygen species stimulate vascular smooth muscle cell growth and proto-oncogene expression.
Circ Res, 70 (1992), pp. 593-599
[6.]
G.N. Rao, R.W. Alexander, M.S. Runge.
Linoleic acid and its metabolites, hydroperoxyoctadecadienoic acids, stimulate c-fos, c-jun, and c-myc mRNA expression, mitogen-activated protein kinase activation, and growth in rat aortic smooth muscle cells.
J Clin Invest, 96 (1995), pp. 842-847
[7.]
M.S. Penn, M.Z. Cui, A.L. Winokur, J. Bethea, T.A. Hamilton, P.E. DiCorleto, et al.
Smooth muscle cell surface tissue factor pathway activation by oxidized low-density lipoprotein requires cellular lipid peroxidation.
Blood, 96 (2000), pp. 3056-3063
[8.]
V.N. Schumaker, D.L. Puppione.
Sequential flotation ultracentrifugation.
Methods Enzymol, 58 (1979), pp. 141-152
[9.]
J. Girona, J. Ribalta, J.C. Vallvé, M. Heras, S. Olivé, L. Masana.
Variación de los aldehídos de las LDL oxidadas in vitro según el método utilizado.
Clin Invest Arteriosc, 11 (1999), pp. 127-131
[10.]
K.A. Yagi.
A simple fluorimetric analysis for hydroperoxide in blood plasma.
Biochem Med Metab Biol, 15 (1976), pp. 212-216
[11.]
H. Esterbauer, H. Cheeseman.
Determination of aldehydic lipid peroxidation products: malonaldehyde and 4-hydroxynonenal.
Methods Enzymol, 182 (1990), pp. 407-421
[12.]
S. Page, C. Fischer, B. Baumgartner, M. Haas, U. Kreusel, G. Loidl, et al.
4-hydroxynonenal prevents NF-kB activation and tumor necrosis factor expression by inhibiting IkB phosphorylation and subsequent proteolysis.
J Biol Chem, 274 (1999), pp. 11611-11618
[13.]
J. Girona, J.C. Vallvé, J. Ribalta, M. Heras, S. Olivé, L. Masana.
2,4-decadienal downregulates TNFa gene expression in THP-1 human macrophages.
Atherosclerosis, 158 (2001), pp. 95-101
[14.]
J. Ruef, G.N. Rao, F. Li, C. Bode, C. Patterson, A. Bhatnagar, et al.
Induction of rat aortic smooth muscle cell growth by the lipid peroxidation product 4-hydroxy-2-nonenal.
Circulation, 97 (1998), pp. 1071-1078
[15.]
H. Esterbauer.
Cytotoxicity and genotoxicity of lipid-oxidation products.
Am J Clin Nutr, 57 (1993), pp. 779-786
[16.]
E. Tremoli, M. Camera, V. Toschi, S. Colli.
Tissue factor in atherosclerosis.
Atherosclerosis, 144 (1999), pp. 273-283
[17.]
P. Oeth, G.C.N. Parry, N. Mackman.
Regulation of the tissue factor gene in human monocytic cells. Role of AP-1, NF-kB/Rel and Sp-1 proteins in uninduced and lipopolysaccharide-induced expression.
Arteriosc Thromb Vasc Biol, 17 (1997), pp. 365-374
Copyright © 2002. Sociedad Española de Arteriosclerosis y Elsevier España, S.L.
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