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The DOI matches its Crossref record; 8 of the 8 references it cites were found in a registry or an index.

Inflammasome activity is essential for one kidney/deoxycorticosterone acetate/salt‐induced hypertension in mice

Open access
Krishnan, S M, Dowling, J K, Ling, Y H, Diep, H, Chan, C T, Ferens, D, Kett, M M, Pinar, A, Samuel, C S, Vinh, A, Arumugam, T V, Hewitson, T D, Kemp‐Harper, B K, Robertson, A A B, Cooper, M A, Latz, E, Mansell, A, Sobey, C G, Drummond, G R·2016·British Journal of Pharmacology

Abstract

Background and Purpose: Inflammasomes are multimeric complexes that facilitate caspase‐1‐mediated processing of the pro‐inflammatory cytokines IL‐1β and IL‐18. Clinical hypertension is associated with renal inflammation and elevated circulating levels of IL‐1β and IL‐18. Therefore, we investigated whether hypertension in mice is associated with increased expression and/or activation of the inflammasome in the kidney, and if inhibition of inflammasome activity reduces BP, markers of renal inflammation and fibrosis. Experimental Approach: Wild‐type and inflammasome‐deficient ASC−/− mice were uninephrectomized and received deoxycorticosterone acetate and saline to drink (1 K/DOCA/salt). Control mice were uninephrectomized but received a placebo pellet and water. BP was measured by tail cuff; renal expression of inflammasome subunits and inflammatory markers was measured by real‐time PCR and immunoblotting; macrophage and collagen accumulation was assessed by immunohistochemistry. Key Results: 1 K/DOCA/salt‐induced hypertension in mice was associated with increased renal mRNA expression of inflammasome subunits NLRP 3, ASC and pro‐caspase‐1, and the cytokine, pro‐IL‐1β, as well as protein levels of active caspase‐1 and mature IL‐1β. Following treatment with 1 K/DOCA/salt, ASC−/− mice displayed blunted pressor responses and were also protected from increases in renal expression of IL‐6, IL‐17A, CCL 2, ICAM‐1 and VCAM‐1, and accumulation of macrophages and collagen. Finally, treatment with a novel inflammasome inhibitor, MCC 950, reversed hypertension in 1 K/DOCA/salt‐treated mice. Conclusions and Implications: Renal inflammation, fibrosis and elevated BP induced by 1 K/DOCA/salt treatment are dependent on inflammasome activity, highlighting the inflammasome/IL‐1β pathway as a potential therapeutic target in hypertension. Linked Articles: This article is part of a themed section on Inflammation: maladies, models, mechanisms and molecules. To view the other articles in this section visit http://dx.doi.org/10.1111/bph.2016.173.issue-4

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Metadata

Authors
Krishnan, S. M., Dowling, J. K., Ling, Y. H., Diep, H., Chan, C. T., Ferens, D., Kett, M. M., Pinar, A., Samuel, C. S., Vinh, A., Arumugam, T. V., Hewitson, T. D., Kemp‐Harper, B. K., Robertson, A. A. B., Cooper, M. A., Latz, E., Mansell, A., Sobey, C. G., & Drummond, G. R.
Venue
British Journal of Pharmacology
Publisher
Wiley
Published
2015-07-31
Volume
173
Issue
4
Pages
752-765
ISSN
  • 0007-1188 (ISSN-L)
  • 1476-5381
OpenAlex
W1608457896
Cited by
192
References
8
FWCI
7.20
Type
journal article
Language
en
Open access
bronze

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