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Lipid soluble smoke...
Lipid soluble smoke particles up-regulate vascular smooth muscle ETB receptors via activation of mitogen activating protein kinases and NF-kappaB pathways.
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- Xu, Cang-Bao (författare)
- Lund University,Lunds universitet,Medicin, Lund,Sektion II,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Medicine, Lund,Section II,Department of Clinical Sciences, Lund,Faculty of Medicine
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- Zheng, Jianpu (författare)
- Lund University,Lunds universitet,Medicin, Lund,Sektion II,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Medicine, Lund,Section II,Department of Clinical Sciences, Lund,Faculty of Medicine
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Zhang, Wei (författare)
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- Zhang, Yaping (författare)
- Karolinska Institutet,Lund University,Lunds universitet,Medicin, Lund,Sektion II,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Medicine, Lund,Section II,Department of Clinical Sciences, Lund,Faculty of Medicine
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- Edvinsson, Lars (författare)
- Lund University,Lunds universitet,Medicin, Lund,Sektion II,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Medicine, Lund,Section II,Department of Clinical Sciences, Lund,Faculty of Medicine
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(creator_code:org_t)
- 2008-08-20
- 2008
- Engelska.
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Ingår i: Toxicological Sciences. - : Oxford University Press (OUP). - 1096-0929 .- 1096-6080. ; 106:2, s. 546-555
- Relaterad länk:
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http://www.ncbi.nlm.... (free)
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http://dx.doi.org/10... (free)
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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http://kipublication...
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Abstract
Ämnesord
Stäng
- Cigarette smoke is a strong risk factor for cardiovascular disease. However, the underlying molecular mechanisms that lead to cigarette smoke-associated cardiovascular disease remain elusive. With functional and molecular methods, we demonstrate for the first time that lipid soluble cigarette smoke particles (DSP) increased the expression of endothelin type B (ET(B)) receptors in arterial smooth muscle cells. The increased ET(B) receptors in arterial smooth muscle cells was documented as enhanced contractility (sensitive myograph technique), elevated levels of ET(B) receptor mRNA (quantitative real-time PCR) and protein expressions (immunohistochemistry and Western blotting). Intracellular signalling was studied with Western blotting and phosphoELISA; this revealed that DSP induced extracellular-regulated protein kinase 1 and 2 (ERK1/2), p38 and nuclear factor-kappaB (NF-kappaB) phosphorylation within 3 hours. Blocking ERK1/2, p38 or NF-kappaB activation by their specific inhibitors significantly attenuated the DSP-induced up-regulation of ET(B) receptor-mediated contraction and both ET(B) receptor mRNA and protein expression. In addition, dexamethasone abolished the DSP-induced up-regulation of ET(B) receptor-mediated contraction. In conclusion, up-regulation of ET(B) receptors by DSP in arterial smooth muscle cells involves activation of mitogen activating protein kinases (ERK1/2 and p38) and the downstream transcriptional factor NF-kappaB pathways.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Annan klinisk medicin (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Other Clinical Medicine (hsv//eng)
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