Downregulation of Thromboxane A2 Receptor Occurs Mainly via Nuclear Factor-KappaB Signaling Pathway in Rat Renal Artery

Joint Authors

Zhang, Yaping
Mi, Man
Xie, Yan-Hua
Wang, Si-Wang
Edvinsson, Lars
Xu, Cang-Bao

Source

Advances in Pharmacological and Pharmaceutical Sciences

Issue

Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-8, 8 p.

Publisher

Hindawi Publishing Corporation

Publication Date

2017-07-09

Country of Publication

Egypt

No. of Pages

8

Main Subjects

Pharmacology

Abstract EN

Thromboxane A2 (TXA2) acts on TXA2 receptors (TP) to regulate renal artery blood flow and subsequently contributes to the pathogenesis of renal ischemia.

The present study was designed to examine if nuclear factor-kappaB (NF-κB) signaling pathway is involved in the downregulation of TP receptors in rat renal artery.

Rat renal artery segments were organ cultured for 6 or 24 h.

Downregulation of TP receptors was monitored using myograph (contractile function), real-time PCR (receptor mRNA), and immunohistochemistry (receptor protein).

Specific inhibitors (MG-132 and BMS345541) for NF-κB signaling pathway were used to dissect the underlying molecular mechanisms involved.

Compared to fresh (noncultured) segments, organ culture of the renal artery segments for 24 h induced a significant rightward shift of U46619 (TP receptor agonist) contractile response curves (pEC50: 6.89±0.06 versus 6.48±0.04, P<0.001).

This decreased contractile response to U46619 was paralleled with decreased TP receptor mRNA and protein expressions in the renal artery smooth muscle cells.

Specific inhibitors (MG-132 and BMS345541) for NF-κB signaling pathway significantly abolished the decreased TP protein expression and receptor-mediated contractions.

In conclusion, downregulation of TP receptors in the renal artery smooth muscle cells occurs mainly via the NF-κB signaling pathway.

American Psychological Association (APA)

Zhang, Yaping& Mi, Man& Xie, Yan-Hua& Wang, Si-Wang& Edvinsson, Lars& Xu, Cang-Bao. 2017. Downregulation of Thromboxane A2 Receptor Occurs Mainly via Nuclear Factor-KappaB Signaling Pathway in Rat Renal Artery. Advances in Pharmacological and Pharmaceutical Sciences،Vol. 2017, no. 2017, pp.1-8.
https://search.emarefa.net/detail/BIM-1125427

Modern Language Association (MLA)

Zhang, Yaping…[et al.]. Downregulation of Thromboxane A2 Receptor Occurs Mainly via Nuclear Factor-KappaB Signaling Pathway in Rat Renal Artery. Advances in Pharmacological and Pharmaceutical Sciences No. 2017 (2017), pp.1-8.
https://search.emarefa.net/detail/BIM-1125427

American Medical Association (AMA)

Zhang, Yaping& Mi, Man& Xie, Yan-Hua& Wang, Si-Wang& Edvinsson, Lars& Xu, Cang-Bao. Downregulation of Thromboxane A2 Receptor Occurs Mainly via Nuclear Factor-KappaB Signaling Pathway in Rat Renal Artery. Advances in Pharmacological and Pharmaceutical Sciences. 2017. Vol. 2017, no. 2017, pp.1-8.
https://search.emarefa.net/detail/BIM-1125427

Data Type

Journal Articles

Language

English

Notes

Includes bibliographical references

Record ID

BIM-1125427