scholarly journals Expression Analysis Highlights AXL as a Candidate Zika Virus Entry Receptor in Neural Stem Cells

2016 ◽  
Vol 18 (5) ◽  
pp. 591-596 ◽  
Author(s):  
Tomasz J. Nowakowski ◽  
Alex A. Pollen ◽  
Elizabeth Di Lullo ◽  
Carmen Sandoval-Espinosa ◽  
Marina Bershteyn ◽  
...  
Author(s):  
Patricia P Garcez ◽  
Erick C Loiola ◽  
Rodrigo F Madeiro da Costa ◽  
Luiza Higa ◽  
Pablo Trindade ◽  
...  

Since the emergence of Zika virus (ZIKV), reports of microcephaly have increased dramatically in Brazil; however, causality between the widespread epidemic and malformations in fetal brains has not been confirmed. Here, we examine the effects of ZIKV infection in human neural stem cells growing as neurospheres and cerebral organoids. Using immunocytochemistry and electron microscopy, we show that ZIKV targets human brain cells, reducing their viability and growth as neurospheres and cerebral organoids. These results suggest that ZIKV abrogates neurogenesis during human brain development.


Cell Reports ◽  
2020 ◽  
Vol 30 (4) ◽  
pp. 969-983.e4 ◽  
Author(s):  
Shaobo Wang ◽  
Qiong Zhang ◽  
Shashi Kant Tiwari ◽  
Gianluigi Lichinchi ◽  
Edwin H. Yau ◽  
...  

2011 ◽  
Vol 8 (1) ◽  
pp. 119
Author(s):  
Ruth Beckervordersandforth ◽  
Pratibha Tripathi ◽  
Jovica Ninkovic ◽  
Efil Bayam ◽  
Alexandra Lepier ◽  
...  

mSystems ◽  
2018 ◽  
Vol 3 (1) ◽  
Author(s):  
Sylvie Janssens ◽  
Michael Schotsaert ◽  
Rahul Karnik ◽  
Vinod Balasubramaniam ◽  
Marion Dejosez ◽  
...  

Scientific research on human neural stem cells and cerebral organoids has confirmed the congenital neurotropic and neurodestructive nature of the Zika virus. However, the extent to which prenatal ZIKV infection is associated with more subtle brain alterations, such as epigenetic changes, remains ill defined. Here, we address the question of whether ZIKV infection induces DNA methylation changes with the potential to cause brain disorders later in life.


Author(s):  
Livia Rosa-Fernandes ◽  
Fernanda Rodrigues Cugola ◽  
Fabiele Baldino Russo ◽  
Rebeca Kawahara ◽  
Caio Cesar de Melo Freire ◽  
...  

2006 ◽  
Vol 198 (2) ◽  
pp. 593
Author(s):  
D.R. Wakeman ◽  
E.Y. Snyder ◽  
D.E. Redmond ◽  
J.F. Loring ◽  
F.J. Mueller

2019 ◽  
Author(s):  
Jean A. Bernatchez ◽  
Michael Coste ◽  
Sungjun Beck ◽  
Grace A. Wells ◽  
Lucas A. Luna ◽  
...  

AbstractZika virus (ZIKV), an emerging flavivirus which causes neurodevelopmental impairment to fetuses and has been linked to Guillain-Barré syndrome, continues to threaten global health due to the absence of targeted prophylaxis or treatment. Nucleoside analogues are good examples of efficient anti-viral inhibitors, and prodrug strategies using phosphate masking groups (ProTides) have been employed to improve the bioavailability of ribonucleoside analogues. Here, we synthesized and tested a library of 13 ProTides against ZIKV in human neural stem cells. Strong activity was observed for 2′-C-methyluridine and 2′-C-ethynyluridine ProTides with an aryloxyl phosphoramidate masking group. Conversion of the aryloxyl phosphoramidate ProTide group of 2′-C-methyluridine to a 2-(methylthio)ethyl phosphoramidate completely abolished antiviral activity of the compound. The aryloxyl phosphoramidate ProTide of 2′-C-methyluridine outperformed the hepatitis C virus (HCV) drug sofosbuvir in suppression of viral titers and protection from cytopathic effect, while the former compound’s triphosphate active metabolite was better incorporated by purified ZIKV NS5 polymerase over time. Molecular superpositioning revealed different orientations of residues opposite the 2′-fluoro group of sofosbuvir. These findings suggest both a nucleobase and ProTide group bias for the anti-ZIKV activity of nucleoside analogue ProTides in a disease-relevant cell model.


2020 ◽  
Vol 48 (5) ◽  
pp. 2101-2115
Author(s):  
Beverly V. Robinson ◽  
Victor Faundez ◽  
Dorothy A. Lerit

Microcephaly is a rare, yet devastating, neurodevelopmental condition caused by genetic or environmental insults, such as the Zika virus infection. Microcephaly manifests with a severely reduced head circumference. Among the known heritable microcephaly genes, a significant proportion are annotated with centrosome-related ontologies. Centrosomes are microtubule-organizing centers, and they play fundamental roles in the proliferation of the neuronal progenitors, the neural stem cells (NSCs), which undergo repeated rounds of asymmetric cell division to drive neurogenesis and brain development. Many of the genes, pathways, and developmental paradigms that dictate NSC development in humans are conserved in Drosophila melanogaster. As such, studies of Drosophila NSCs lend invaluable insights into centrosome function within NSCs and help inform the pathophysiology of human microcephaly. This mini-review will briefly survey causative links between deregulated centrosome functions and microcephaly with particular emphasis on insights learned from Drosophila NSCs.


Author(s):  
Patricia P Garcez ◽  
Erick C Loiola ◽  
Rodrigo F Madeiro da Costa ◽  
Luiza Higa ◽  
Pablo Trindade ◽  
...  

Since the emergence of Zika virus (ZIKV), reports of microcephaly have increased dramatically in Brazil; however, causality between the widespread epidemic and malformations in fetal brains has not been confirmed. Here, we examine the effects of ZIKV infection in human neural stem cells growing as neurospheres and cerebral organoids. Using immunocytochemistry and electron microscopy, we show that ZIKV targets human brain cells, reducing their viability and growth as neurospheres and cerebral organoids. These results suggest that ZIKV abrogates neurogenesis during human brain development.


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