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Suzukawa AA, Zanluca C, Jorge NAN, de Noronha L, Koishi AC, de Paula CBV, Rebutini PZ, Nagashima S, Hansel-Frose AFF, Parreira VSC, Bordignon J, MacDonald MR, Rice CM, Passetti F, Duarte Dos Santos CN. Downregulation of IGF2 expression in third trimester placental tissues from Zika virus infected women in Brazil. J Infect 2020; 81:766-775. [PMID: 32987099 DOI: 10.1016/j.jinf.2020.09.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 09/22/2020] [Accepted: 09/23/2020] [Indexed: 11/30/2022]
Abstract
OBJECTIVES Screening for genes differentially expressed in placental tissues, aiming to identify transcriptional signatures that may be involved in ZIKV congenital pathogenesis. METHODS Transcriptome data from placental tissues of pregnant women naturally infected with Zika virus during the third trimester were compared to those from women who tested negative for Zika infection. The findings were validated using both a cell culture model and an immunohistochemistry/morphological analysis of naturally infected placental tissues. RESULTS Transcriptome analysis revealed that Zika virus infection induces downregulation of insulin-like growth factor II (IGF2) gene, an essential factor for fetal development. The Caco-2 cell culture model that constitutively expresses IGF2 was used for the transcriptome validation. Asiatic and African Zika virus strains infection caused downregulated IGF2 gene expression in Caco-2 cells, whereas other flaviviruses, such as dengue serotype 1, West Nile and wild-type yellow fever viruses, had no effect on this gene expression. Immunohistochemical assays on decidual tissues corroborated our transcriptome analysis, showing that IGF2 is reduced in the decidua of Zika virus-infected women. CONCLUSIONS Our results draw attention to IGF2 modulation in uterine tissues, and this finding is expected to support future studies on strategies to ameliorate the harmful effects of Zika virus infection during pregnancy.
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Affiliation(s)
- Andréia A Suzukawa
- Laboratório de Virologia Molecular, Instituto Carlos Chagas, Fundação Oswaldo Cruz, Curitiba, PR, Brazil
| | - Camila Zanluca
- Laboratório de Virologia Molecular, Instituto Carlos Chagas, Fundação Oswaldo Cruz, Curitiba, PR, Brazil
| | - Natasha A N Jorge
- Bioinformatics Group, Department of Computer Science, and Interdisciplinary Center for Bioinformatics, D-04107 Leipzig, Germany
| | - Lucia de Noronha
- Laboratório de Patologia Experimental, Pontifícia Universidade Católica do Paraná, Curitiba, PR, Brazil
| | - Andrea C Koishi
- Laboratório de Virologia Molecular, Instituto Carlos Chagas, Fundação Oswaldo Cruz, Curitiba, PR, Brazil
| | - Caroline B V de Paula
- Laboratório de Patologia Experimental, Pontifícia Universidade Católica do Paraná, Curitiba, PR, Brazil
| | - Patrícia Z Rebutini
- Laboratório de Patologia Experimental, Pontifícia Universidade Católica do Paraná, Curitiba, PR, Brazil
| | - Seigo Nagashima
- Laboratório de Patologia Experimental, Pontifícia Universidade Católica do Paraná, Curitiba, PR, Brazil
| | - Aruana F F Hansel-Frose
- Laboratório de Regulação da Expressão Gênica, Instituto Carlos Chagas, Fundação Oswaldo Cruz, Curitiba, PR, Brazil
| | - Vinícius S C Parreira
- Laboratório de Regulação da Expressão Gênica, Instituto Carlos Chagas, Fundação Oswaldo Cruz, Curitiba, PR, Brazil
| | - Juliano Bordignon
- Laboratório de Virologia Molecular, Instituto Carlos Chagas, Fundação Oswaldo Cruz, Curitiba, PR, Brazil
| | - Margaret R MacDonald
- Laboratory of Virology and Infectious Disease, The Rockefeller University, New York, NY 10065, USA
| | - Charles M Rice
- Laboratory of Virology and Infectious Disease, The Rockefeller University, New York, NY 10065, USA
| | - Fabio Passetti
- Laboratório de Regulação da Expressão Gênica, Instituto Carlos Chagas, Fundação Oswaldo Cruz, Curitiba, PR, Brazil.
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Castilho MS, Postigo MP, de Paula CBV, Montanari CA, Oliva G, Andricopulo AD. Two- and three-dimensional quantitative structure–activity relationships for a series of purine nucleoside phosphorylase inhibitors. Bioorg Med Chem 2006; 14:516-27. [PMID: 16203153 DOI: 10.1016/j.bmc.2005.08.055] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2005] [Revised: 08/16/2005] [Accepted: 08/17/2005] [Indexed: 11/20/2022]
Abstract
Comparative molecular field analysis (CoMFA), comparative molecular similarity indices analysis, and hologram quantitative structure-activity relationship (HQSAR) studies were conducted on a series of 52 training set inhibitors of calf spleen purine nucleoside phosphorylase (PNP). Significant cross-validated correlation coefficients (CoMFA, q(2)=0.68; CoMSIA, q(2)=0.66; and HQSAR, q(2)=0.70) were obtained, indicating the potential of the models for untested compounds. The models were then used to predict the inhibitory potency of 16 test set compounds that were not included in the training set, and the predicted values were in good agreement with the experimental results. The final QSAR models along with the information gathered from 3D contour and 2D contribution maps should be useful for the design of novel inhibitors of PNP having improved potency.
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Affiliation(s)
- Marcelo S Castilho
- Laboratório de Química Medicinal e Computacional, Centro de Biotecnologia Molecular Estrutural, Instituto de Física de São Carlos, Universidade de São Paulo, Av. Trabalhador São-carlense 400, 13560-970 São Carlos-SP, Brazil
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