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Transcriptome Sequencing of the Spleen Reveals Antiviral Response Genes in Chickens Infected with CAstV

Astrovirus infections pose a significant problem in the poultry industry, leading to multiple adverse effects such as a decreased egg production, breeding disorders, poor weight gain, and even increased mortality. The commonly observed chicken astrovirus (CAstV) was recently reported to be responsib...

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Autores principales: Sajewicz-Krukowska, Joanna, Jastrzębski, Jan Paweł, Grzybek, Maciej, Domańska-Blicharz, Katarzyna, Tarasiuk, Karolina, Marzec-Kotarska, Barbara
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8708055/
https://www.ncbi.nlm.nih.gov/pubmed/34960643
http://dx.doi.org/10.3390/v13122374
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author Sajewicz-Krukowska, Joanna
Jastrzębski, Jan Paweł
Grzybek, Maciej
Domańska-Blicharz, Katarzyna
Tarasiuk, Karolina
Marzec-Kotarska, Barbara
author_facet Sajewicz-Krukowska, Joanna
Jastrzębski, Jan Paweł
Grzybek, Maciej
Domańska-Blicharz, Katarzyna
Tarasiuk, Karolina
Marzec-Kotarska, Barbara
author_sort Sajewicz-Krukowska, Joanna
collection PubMed
description Astrovirus infections pose a significant problem in the poultry industry, leading to multiple adverse effects such as a decreased egg production, breeding disorders, poor weight gain, and even increased mortality. The commonly observed chicken astrovirus (CAstV) was recently reported to be responsible for the “white chicks syndrome” associated with an increased embryo/chick mortality. CAstV-mediated pathogenesis in chickens occurs due to complex interactions between the infectious pathogen and the immune system. Many aspects of CAstV–chicken interactions remain unclear, and there is no information available regarding possible changes in gene expression in the chicken spleen in response to CAstV infection. We aim to investigate changes in gene expression triggered by CAstV infection. Ten 21-day-old SPF White Leghorn chickens were divided into two groups of five birds each. One group was inoculated with CAstV, and the other used as the negative control. At 4 days post infection, spleen samples were collected and immediately frozen at −70 °C for RNA isolation. We analyzed the isolated RNA, using RNA-seq to generate transcriptional profiles of the chickens’ spleens and identify differentially expressed genes (DEGs). The RNA-seq findings were verified by quantitative reverse-transcription PCR (qRT-PCR). A total of 31,959 genes was identified in response to CAstV infection. Eventually, 45 DEGs (p-value < 0.05; log(2) fold change > 1) were recognized in the spleen after CAstV infection (26 upregulated DEGs and 19 downregulated DEGs). qRT-PCR performed on four genes (IFIT5, OASL, RASD1, and DDX60) confirmed the RNA-seq results. The most differentially expressed genes encode putative IFN-induced CAstV restriction factors. Most DEGs were associated with the RIG-I-like signaling pathway or more generally with an innate antiviral response (upregulated: BLEC3, CMPK2, IFIT5, OASL, DDX60, and IFI6; downregulated: SPIK5, SELENOP, HSPA2, TMEM158, RASD1, and YWHAB). The study provides a global analysis of host transcriptional changes that occur during CAstV infection in vivo and proves that, in the spleen, CAstV infection in chickens predominantly affects the cell cycle and immune signaling.
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spelling pubmed-87080552021-12-25 Transcriptome Sequencing of the Spleen Reveals Antiviral Response Genes in Chickens Infected with CAstV Sajewicz-Krukowska, Joanna Jastrzębski, Jan Paweł Grzybek, Maciej Domańska-Blicharz, Katarzyna Tarasiuk, Karolina Marzec-Kotarska, Barbara Viruses Article Astrovirus infections pose a significant problem in the poultry industry, leading to multiple adverse effects such as a decreased egg production, breeding disorders, poor weight gain, and even increased mortality. The commonly observed chicken astrovirus (CAstV) was recently reported to be responsible for the “white chicks syndrome” associated with an increased embryo/chick mortality. CAstV-mediated pathogenesis in chickens occurs due to complex interactions between the infectious pathogen and the immune system. Many aspects of CAstV–chicken interactions remain unclear, and there is no information available regarding possible changes in gene expression in the chicken spleen in response to CAstV infection. We aim to investigate changes in gene expression triggered by CAstV infection. Ten 21-day-old SPF White Leghorn chickens were divided into two groups of five birds each. One group was inoculated with CAstV, and the other used as the negative control. At 4 days post infection, spleen samples were collected and immediately frozen at −70 °C for RNA isolation. We analyzed the isolated RNA, using RNA-seq to generate transcriptional profiles of the chickens’ spleens and identify differentially expressed genes (DEGs). The RNA-seq findings were verified by quantitative reverse-transcription PCR (qRT-PCR). A total of 31,959 genes was identified in response to CAstV infection. Eventually, 45 DEGs (p-value < 0.05; log(2) fold change > 1) were recognized in the spleen after CAstV infection (26 upregulated DEGs and 19 downregulated DEGs). qRT-PCR performed on four genes (IFIT5, OASL, RASD1, and DDX60) confirmed the RNA-seq results. The most differentially expressed genes encode putative IFN-induced CAstV restriction factors. Most DEGs were associated with the RIG-I-like signaling pathway or more generally with an innate antiviral response (upregulated: BLEC3, CMPK2, IFIT5, OASL, DDX60, and IFI6; downregulated: SPIK5, SELENOP, HSPA2, TMEM158, RASD1, and YWHAB). The study provides a global analysis of host transcriptional changes that occur during CAstV infection in vivo and proves that, in the spleen, CAstV infection in chickens predominantly affects the cell cycle and immune signaling. MDPI 2021-11-26 /pmc/articles/PMC8708055/ /pubmed/34960643 http://dx.doi.org/10.3390/v13122374 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Sajewicz-Krukowska, Joanna
Jastrzębski, Jan Paweł
Grzybek, Maciej
Domańska-Blicharz, Katarzyna
Tarasiuk, Karolina
Marzec-Kotarska, Barbara
Transcriptome Sequencing of the Spleen Reveals Antiviral Response Genes in Chickens Infected with CAstV
title Transcriptome Sequencing of the Spleen Reveals Antiviral Response Genes in Chickens Infected with CAstV
title_full Transcriptome Sequencing of the Spleen Reveals Antiviral Response Genes in Chickens Infected with CAstV
title_fullStr Transcriptome Sequencing of the Spleen Reveals Antiviral Response Genes in Chickens Infected with CAstV
title_full_unstemmed Transcriptome Sequencing of the Spleen Reveals Antiviral Response Genes in Chickens Infected with CAstV
title_short Transcriptome Sequencing of the Spleen Reveals Antiviral Response Genes in Chickens Infected with CAstV
title_sort transcriptome sequencing of the spleen reveals antiviral response genes in chickens infected with castv
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8708055/
https://www.ncbi.nlm.nih.gov/pubmed/34960643
http://dx.doi.org/10.3390/v13122374
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