Increased in vitro glial fibrillary acidic protein expression, telomerase activity, and telomere length after productive human immunodeficiency virus‐1 infection in murine astrocytes

2013 ◽  
Vol 92 (2) ◽  
pp. 267-274 ◽  
Author(s):  
Diego Ojeda ◽  
Juan José López‐Costa ◽  
Mariano Sede ◽  
Ester María López ◽  
María Isabel Berria ◽  
...  
2003 ◽  
Vol 47 (10) ◽  
pp. 3109-3116 ◽  
Author(s):  
Miguel Stevens ◽  
Christophe Pannecouque ◽  
Erik De Clercq ◽  
Jan Balzarini

ABSTRACT We have found that novel pyridine oxide derivatives are inhibitors of a wide range of human immunodeficiency virus (HIV) type 1 (HIV-1) and HIV-2 strains in CEM cell cultures. Some of the compounds showed inhibitory activities against recombinant HIV-1 reverse transcriptase (RT), whereas others were totally inactive against this viral protein in vitro. Partial retention of anti-HIV-1 activity against virus strains that contain a variety of mutations characteristic of those for resistance to nonnucleoside RT inhibitors and a lack of inhibitory activity against recombinant HIV-2 RT suggested that these pyridine oxide derivatives possess a mode of antiviral action independent from HIV RT inhibition. Time-of-addition experiments revealed that these pyridine oxide derivatives interact at a postintegration step in the replication cycle of HIV. Furthermore, it was shown that these compounds are active not only in acutely HIV-1-infected cells but also in chronically HIV-infected cells. A dose-dependent inhibition of virus particle release and viral protein expression was observed upon exposure to the pyridine oxide derivatives. Finally, inhibition of HIV-1 long terminal repeat-mediated green fluorescence protein expression in quantitative transactivation bioassays indicated that the additional target of action of the pyridine oxide derivatives may be located at the level of HIV gene expression.


Neuroscience ◽  
2001 ◽  
Vol 102 (3) ◽  
pp. 555-563 ◽  
Author(s):  
J.A. Gurwell ◽  
A. Nath ◽  
Q. Sun ◽  
J. Zhang ◽  
K.M. Martin ◽  
...  

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Wei Zou ◽  
Juanjuan Xing ◽  
Shijie Zou ◽  
Mei Jiang ◽  
Xinping Chen ◽  
...  

Abstract Background A variety of hematopoietic abnormalities are commonly seen in human immunodeficiency virus-1 (HIV-1) infected individuals despite antiviral therapy, but the underlying mechanism remains elusive. Nef plays an important role in HIV-1 induced T cell loss and disease progression, but it is not known whether Nef participates in other hematopoietic abnormalities associated with infection. Results In the current study we investigated the influence of HIV-1LAI Nef (LAI Nef) on the development of hematopoietic stem/progenitor cells (HSPCs) into myeloid-erythroid lineage cells, and found that nef expression in HSPCs blocked their differentiation both in vitro and in humanized mice reconstituted with nef-expressing HSPCs. Conclusions Our novel findings demonstrate LAI Nef compromised the development of myeloid-erythroid lineage cells, and therapeutics targeting Nef would be promising in correcting HIV-1 associated hematopoietic abnormalities.


1989 ◽  
Vol 83 (2) ◽  
pp. 610-615 ◽  
Author(s):  
Y Lunardi-Iskandar ◽  
M T Nugeyre ◽  
V Georgoulias ◽  
F Barré-Sinoussi ◽  
C Jasmin ◽  
...  

2001 ◽  
Vol 28 (7) ◽  
pp. 610-616 ◽  
Author(s):  
A. A. M. A. Baqui ◽  
Jacqueline I. Kelley ◽  
Mary Ann Jabra-Rizk ◽  
Louis G. DePaola ◽  
William A. Falkler ◽  
...  

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