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ABSTRACT: Hypothalamic and testicular transcriptomes of ZIKV-infected BALB/c suckling mice

PROVIDER: PRJNA994603 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR25484609_1.fastq.gz	Fastqsanger.gz
	SRR25484609_2.fastq.gz	Fastqsanger.gz
	SRR25484610_1.fastq.gz	Fastqsanger.gz
	SRR25484610_2.fastq.gz	Fastqsanger.gz
	SRR25484611_1.fastq.gz	Fastqsanger.gz

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Male Germ Cells Support Long-Term Propagation of Zika Virus

Project description:Evidence of male-to-female sexual transmission of Zika virus (ZIKV) and viral RNA in semen and sperm months after infection support a potential role for testicular cells in ZIKV propagation. Here, we demonstrate that germ cells (GC) are most susceptible to ZIKV. We find that only GC infected by ZIKV, but not those infected by dengue fever (DENV) and yellow fever virus (YFV), produce high levels of infectious virus. This observation coincides with decreased expression of interferon-stimulated gene Ifi44l in ZIKV-infected GC and over-expression of Ifi44l results in reduced ZIKV production. Using primary human testicular tissue, we demonstrate that human GC are also permissive for ZIKV infection and production. Finally, we identify berberine chloride as a potent inhibitor of ZIKV infection in both murine and human testes. Together, these studies identify a potential cellular source for propagation of ZIKV in testes and a candidate drug for preventing sexual transmission of ZIKV.

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Molecular Signatures Associated with ZIKV Exposure in Human Cortical Neural Progenitors and Astrocytes

Project description:Zika virus (ZIKV) infection causes microcephaly and has been linked to other brain abnormalities. How ZIKV impairs brain development and function remains elusive. Here we systematically profiled transcriptomes of human neural progenitor cells (hNPCs) and astrocytes exposed to Asian ZIKVC, African ZIKVM, and Dengue virus (DENV). DENV causes distinct gene expression changes; and ZIKV has a broader impact on the expression of gene involved in DNA replication and repair. While overall expression profiles are similar, ZIKVC, but not ZIKVM, induces upregulation of viral response genes. Upon ZIKV infection, astrocytes exhibit more prominent transcriptome changes than hNPCs, particularly enriching genes related to inflammatory response and cytokine production pathways. Our analyses reveal cell-type- and strain-specific molecular signatures associated with ZIKV infection, and identify astrocytes as a major direct target of ZIKV. Further investigation of ZIKV-host interactions based our transcriptomic datasets may help to illuminate neural virulence determinants of ZIKV in patients. Gene Expression Analyses of the cells infected with different flaviviruses

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Project description:In this work, we demonstrate that neonatal mice infected with ZIKV via intracranial injection suffers from transient olfactory dysfunction when they grow up to puberty. Moreover, ZIKV exhibits broad cellular tropism and mainly targets the olfactory ensheathing cells (OECs) in the olfactory mucosa (OM) of mice. To decipher the underlying mechanism of the observed olfactory dysfunction in ZIKV infected mice at the molecular level, RNA-Seq analyses of the OM and OB samples from ZIKV infected mice were performed in comparison with that from the control animals.

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Variation in the immune and inflammatory responses during pneumonia, an important role of the host and pathogen genetic background

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