Infection by zika virus increase angiotensin I-converting enzyme activity in mouse brain

Author(s)

Oyadomari, William Y. ; Christoff, Raissa R. ; Rabello, Tailene ; Oliveira, Vitor ; Higa, Luiza M. ; Garcez, Patricia P. ; Hayashi, Mirian A. F.

• Document type: Journal article
• Source: Biochimie; v. 227, p. 3-pg., 2024-12-03.

Abstract

Congenital zika virus syndrome (CZS) has become a significant worldwide concern since the sudden rise of microcephaly related to zika virus (ZIKV) in Brazil. Primarily transmitted by Aedes mosquitoes, ZIKV shares serologic similarities with dengue virus (DENV), complicating the diagnosis and/or clinical management. The Angiotensin I-Converting Enzyme (ACE) was associated with either neuroprotective or anti-inflammatory properties in the central nervous system (CNS). The possible role(s) of ACE in these two flaviviruses infection remain largely unexplored. In this study, we evaluate ACE activity in the brain of ZIKV- or DENV-infected mice, both compared to MOCK, showing about 30 % increased ACE activity only in ZIKV-infected mice (p = 0.024), while no change was noticed in brain from DENV-infected animals (p = 0.888). In addition, the treatment with interferon beta (IFN(3), under conditions previously demonstrated to rescue the normal size of microcephalic brains determined by ZIKV infection, also restored ACE activity in ZIKV-infected animals to levels close to that of the MOCK control group. Although inflammatory responses expected for either ZIKV or DENV infections, only ZIKV was associated with microcephaly, as well as with increased ACE activity and reversion by treatment with IFN(3. Furthermore, this increase in ACE activity was observed only after intracerebroventricular (ICV) injection (F (2, 16) = 7.907, p = 0.004), but not for intraperitoneal (IP) administration of ZIKV (F (2, 26) = 1.996, p = 0.156), suggesting that the observed central ACE activity modulation may be associated with the presence of this specific flavivirus in the brain. (c) 2024 Elsevier B.V. and Soci & eacute;t & eacute; Fran & ccedil;aise de Biochimie et Biologie Mol & eacute;culaire (SFBBM). All rights are reserved, including those for text and data mining, AI training, and similar technologies. (AU)

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