Results 21 to 30 of about 9,388 (132)

Simian immunodeficiency virus Nef gene regulates the production of 2-LTR circles in vivo

Virology, 2003
The replication dynamics of simian immunodeficiency virus (SIVmac32H-C8), attenuated through discrete genetic disruption of the nef gene, were compared with the wild-type parental clone (SIVmac32H-J5) using quantitative molecular methods. The primary viraemia of both infections were similar during the first week, but peaked on Day 10 at higher levels ...
Clarke, S, Almond, N, Berry, N
openaire   +2 more sources

Functional association between the nef gene product and gag‐pol region of HIV‐1

FEBS Letters, 2000
Nef gene function is diverse among virus isolates of primate immunodeficiency viruses. We found differential effects of nef mutation on the virus replication between two HIV‐1 clones, NL432 and LAI. The nef mutation in NL432 affected the infectivity more severely compared with that in LAI, although the Nef functions of both clones were comparable ...
Ono, Takeshi, Iwatani, Yasumasa, Nishimura, Akiko, Ishimoto, Akinori, Sakai, Hiroyuki   +4 more
openaire   +2 more sources

Regulation of HIV-1 transcription in cells of the monocyte-macrophage lineage

Retrovirology, 2009
Human immunodeficiency virus type 1 (HIV-1) has been shown to replicate productively in cells of the monocyte-macrophage lineage, although replication occurs to a lesser extent than in infected T cells.
Shah Sonia, Kilareski Evelyn M, Nonnemacher Michael R, Wigdahl Brian   +3 more
doaj   +1 more source

Effects of the tat and nef gene products of human immunodeficiency virus type 1 (HIV-1) on transcription controlled by the HIV-1 long terminal repeat and on cell growth in macrophages [PDF]

Journal of Virology, 1993
The RAW264 murine macrophage cell line was used as a model to examine the role of the tat and nef gene products in the transcription regulation of the human immunodeficiency virus type 1 (HIV-1) long terminal repeat (LTR) in macrophages. Contrary to claims that the activity of the HIV-1 LTR responds poorly in rodent cells to trans activation by the ...
Murphy, Kathleen M., Sweet, Matthew J., Ross, Ian L., Hume, David A.   +3 more
openaire   +6 more sources

HIV-1 expression induces cyclin D₁ expression and pRb phosphorylation in infected podocytes: cell-cycle mechanisms contributing to the proliferative phenotype in HIV-associated nephropathy

BMC Microbiology, 2002
Background The aberrant cell-cycle progression of HIV-1-infected kidney cells plays a major role in the pathogenesis of HIV-associated nephropathy, however the mechanisms whereby HIV-1 induces infected glomerular podocytes or infected tubular epithelium ...
Husain Mohammad, Sunamoto Masaaki, Nelson Peter J, Gelman Irwin H   +3 more
doaj   +1 more source

Hyper-responsiveness to Stimulation of Human Immunodeficiency Virus-infected CD4+ T Cells Requires Nef and Tat Virus Gene Products and Results from Higher NFAT, NF-κB, and AP-1 Induction [PDF]

Journal of Biological Chemistry, 2004
A chronic state of immune hyperactivation is a feature of human immunodeficiency virus type-1 (HIV-1) infection. Studies on the molecular mechanisms by which HIV-1 can modulate the activation state of T cells indicate that both Nef and Tat can alter T cell activation.
Jean-François, Fortin, Corinne, Barat, Yannick, Beauséjour, Benoit, Barbeau, Michel J, Tremblay   +4 more
openaire   +2 more sources

Roles of phosphatidylserine exposed on the viral envelope and cell membrane in HIV-1 replication

Cell Communication and Signaling, 2019
Phosphatidylserine (PtdSer) is usually present only in the inner leaf of the lipid bilayers of the cell membrane, but is exposed on the outer leaf when cells are activated and/or die. Exposure of PtdSer has physiological functions.
Bernadette Anne Chua, Jamie Ann Ngo, Kathy Situ, Kouki Morizono   +3 more
doaj   +1 more source

Identification of cellular proteins that bind to the human immunodeficiency virus type 1 nef gene product in vitro: a role for myristylation

Journal of General Virology, 1993
The human immunodeficiency virus (HIV) type 1 nef gene product was expressed as an N-terminal fusion protein with glutathione-S-transferase (GST) in the baculovirus system. The resulting nefGST fusion protein was found to be authentically myristylated at the N terminus and could be purified to homogeneity by one-step affinity chromatography on ...
M, Harris, K, Coates
openaire   +2 more sources

Secreted Nonstructural Protein 3 is a Pathogenic Determinant of Orbivirus

Advanced Science, EarlyView.
This study uncovers a conserved PIP2‐dependent secretory pathway of orbivirus NS3 that induces vascular leakage. Pharmacological disruption of PIP2‐NS3 interaction significantly reduces viral pathogenicity and provides protective efficacy in murine models, establishing PIP2‐mediated NS3 secretion as both a key virulence determinant and a promising ...
Junyong Guan, Dong Zhou, Ran Shao, Xing Liu, Jin Peng, Yingran Huang, Shuhui Qi, Cankun Xi, Menghang Wang, Bin Sun, Yinglin Qi, Xin Yin   +11 more
wiley   +1 more source

Rational Design of Broad‐Spectrum Anti‐Enteroviral Molecular Glues Targeting Enteroviral RNAi Suppressors

Advanced Science, EarlyView.
By leveraging this homodimerization mechanism, molecular glues were rationally designed to induce dysfunctional 3A dimerization, thereby restoring antiviral RNAi. The optimal molecular glue, VTP‐32, demonstrated potent and pan‐enterovirus (groups A, B, D) antiviral effects.
Yuan Fang, Xiong Xie, Huidi Fan, Botao Wu, An Wang, Wenhao Dai, Zezhong Liu, Jian Li, Huoyan Tong, Jianan Li, Yujie Ren, Jinlin Wang, Xi Zhou, Hong Liu   +13 more
wiley   +1 more source