The protein Deleted in Breast Cancer-1 (DBC1) regulates vascular response and formation of aortic dissection during Angiotensin II infusion

dc.creatorColman, Laura
dc.creatorCaggiani, Maria
dc.creatorLeyva, Alejandro
dc.creatorBresque, Mariana
dc.creatorLiechocki, Sally
dc.creatorMaya-Monteiro, Clarissa M.
dc.creatorMazal, Daniel
dc.creatorBatthyany, Carlos
dc.creatorCalliari, Aldo
dc.creatorContreras, Paola
dc.creatorEscande, Carlos
dc.date2020-08-01T20:24:01Z
dc.date2020-08-01T20:24:01Z
dc.date2020
dc.date.accessioned2023-09-26T23:32:35Z
dc.date.available2023-09-26T23:32:35Z
dc.identifierCOLMAN, Laura et al. The protein Deleted in Breast Cancer-1 (DBC1) regulates vascular response and formation of aortic dissection during Angiotensin II infusion. Scientific Reports, v. 10, n. 6772, p. 1-22, 2020.
dc.identifier2045-2322
dc.identifierhttps://www.arca.fiocruz.br/handle/icict/42502
dc.identifier10.1038/s41598-020-63841-8
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8891697
dc.descriptionCardiovascular diseases are among the main causes of morbimortality in the adult population. Among them, hypertension is a leading cause for stroke, heart disease and kidney failure. Also, as a result of arterial wall weakness, hypertension can lead to the development of dissecting aortic aneurysms, a rare but often fatal condition if not readily treated. In this work, we investigated the role of DBC1 in the regulation of vascular function in an ANGII-induced hypertension mouse model. We found that WT and DBC1 KO mice developed hypertension in response to ANGII infusion. However, DBC1 KO mice showed increased susceptibility to develop aortic dissections. The effect was accompanied by upregulation of vascular remodeling factors, including MMP9 and also VEGF. Consistent with this, we found decreased collagen deposition and elastic fiber fragmentation, suggesting that increased expression of MMPs in DBC1 KO mice weakens the arterial wall, promoting the formation of aortic dissections during treatment with ANGII. Finally, DBC1 KO mice had reduced cell proliferation in the intima-media layer in response to ANGII, paralleled with an impairment to increase wall thickness in response to hypertension. Furthermore, VSMC purified from DBC1 KO mice showed impaired capacity to leave quiescence, confirming the in vivo results. Altogether, our results show for the first time that DBC1 regulates vascular response and function during hypertension and protects against vascular injury. This work also brings novel insights into the molecular mechanisms of the development of aortic dissections.
dc.formatapplication/pdf
dc.languageeng
dc.publisherNature Resaerch
dc.rightsopen access
dc.subjectCâncer de mama
dc.subjectProteína
dc.subjectVascularização
dc.subjectAngiotensina II
dc.subjectInfusão
dc.subjectDBC1
dc.subjectBreast Cancer
dc.subjectAngiotensin II infusion
dc.subjectDBC1
dc.subjectAortic dissection
dc.subjectVascular response
dc.titleThe protein Deleted in Breast Cancer-1 (DBC1) regulates vascular response and formation of aortic dissection during Angiotensin II infusion
dc.typeArticle


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