Results 1 to 10 of about 16,138 (135)

HIV gp120 induces TREM1 expression through TLR–PGE₂ signalling in human monocyte-derived microglia [PDF]

Journal of Neuroinflammation
Microglia serve as a long-lived reservoir for HIV in the brain and are resistant to the cytopathic effects of infection. As such, they pose a significant barrier to eradication strategies and contribute to chronic neuroinflammation in people living with ...
Ayisha Mahama, Pratima Rawat, Carmen Teodorof-Diedrich, Stephen A. Spector, Grant R. Campbell   +4 more
doaj   +2 more sources

Structural Insights Into Man₉ Recognition by the HIV Antibody 2G12 Revealed by Paramagnetic NMR. [PDF]

Adv Sci (Weinh)
The HIV gp120 glycoprotein displays Man9 oligomannose structures that are recognized by the neutralizing antibody 2G12. Detailed characterization of the binding epitope in solution is important for immunogen design but remains challenging, since the signals of the terminal mannoses from the three arms of Man9 (D1, D2, and D3) cannot be distinguished in
Silva-Díaz A, Oquist-Phillips P, Cruz N, Lera-Lasso I, Castañar L, Rojo J, Ramos-Soriano J, Canales Á.   +7 more
europepmc   +2 more sources

Quercetin ameliorates HIV-1 gp120 protein-induced intestinal barrier dysfunction by inhibiting the activation of the ERK1/2 signaling pathway in a Caco-2 cell model [PDF]

AIDS Research and Therapy
Background People living with HIV (PLWH) frequently experience non-AIDS comorbidities, driven in part by persistent intestinal barrier dysfunction and systemic inflammation.
Lijiao Zhu, Jiangyu Yan, Qinghui Wang, Xiaoqing He, Xiaolei Xu, Jiadan Yang, Jing Ouyang   +6 more
doaj   +2 more sources

HIV envelope antigen valency on peptide nanofibers modulates antibody magnitude and binding breadth

Scientific Reports, 2021
A major challenge in developing an effective vaccine against HIV-1 is the genetic diversity of its viral envelope. Because of the broad range of sequences exhibited by HIV-1 strains, protective antibodies must be able to bind and neutralize a widely ...
Chelsea N. Fries, Jui-Lin Chen, Maria L. Dennis, Nicole L. Votaw, Joshua Eudailey, Brian E. Watts, Kelly M. Hainline, Derek W. Cain, Richard Barfield, Cliburn Chan, M. Anthony Moody, Barton F. Haynes, Kevin O. Saunders, Sallie R. Permar, Genevieve G. Fouda, Joel H. Collier   +15 more
doaj   +1 more source

Discovery of O-Linked Carbohydrate on HIV-1 Envelope and Its Role in Shielding against One Category of Broadly Neutralizing Antibodies

Cell Reports, 2020
Summary: Approximately 50% of the mass of the Envelope (Env) glycoprotein surface subunit (gp120) of human immunodeficiency virus type 1 (HIV-1) is composed of N-linked carbohydrate. Until now, the dogma has been that HIV-1 lacks O-linked carbohydrate on
Zachary A. Silver, Aristotelis Antonopoulos, Stuart M. Haslam, Anne Dell, Gordon M. Dickinson, Michael S. Seaman, Ronald C. Desrosiers   +6 more
doaj   +1 more source

The influence of N-linked glycans on the molecular dynamics of the HIV-1 gp120 V3 loop. [PDF]

PLoS ONE, 2013
N-linked glycans attached to specific amino acids of the gp120 envelope trimer of a HIV virion can modulate the binding affinity of gp120 to CD4, influence coreceptor tropism, and play an important role in neutralising antibody responses.
Natasha T Wood, Elisa Fadda, Robert Davis, Oliver C Grant, Joanne C Martin, Robert J Woods, Simon A Travers   +6 more
doaj   +1 more source

Human immunodeficiency virus envelope protein Gp120 induces proliferation but not apoptosis in osteoblasts at physiologic concentrations. [PDF]

PLoS ONE, 2011
Patients with HIV infection have decreased numbers of osteoblasts, decreased bone mineral density and increased risk of fracture compared to uninfected patients; however, the molecular mechanisms behind these associations remain unclear.
Nathan W Cummins, Anna Klicpera, Amy M Sainski, Gary D Bren, Sundeep Khosla, Jennifer J Westendorf, Andrew D Badley   +6 more
doaj   +1 more source

X4 Human immunodeficiency virus type 1 gp120 promotes human hepatic stellate cell activation and collagen I expression through interactions with CXCR4. [PDF]

PLoS ONE, 2012
Patients coinfected with HIV-1 and HCV develop more rapid liver fibrosis than patients monoinfected with HCV. HIV RNA levels correlate with fibrosis progression implicating HIV directly in the fibrotic process.
Feng Hong, Yedidya Saiman, Chuanping Si, Arevik Mosoian, Meena B Bansal   +4 more
doaj   +1 more source

HIV-1 inhibitory properties of eCD4-Igmim2 determined using an Env-mediated membrane fusion assay. [PDF]

PLoS ONE, 2018
Human Immunodeficiency Virus-1 (HIV-1) entry is dependent on the envelope glycoprotein (Env) that is present on the virion and facilitates fusion between the envelope and the cellular membrane.
Edward Yang, Matthew R Gardner, Amber S Zhou, Michael Farzan, Ann M Arvin, Stefan L Oliver   +5 more
doaj   +1 more source

Novel peptides based on HIV-1 gp120 sequence with homology to chemokines inhibit HIV infection in cell culture.

PLoS ONE, 2011
The sequential interaction of the envelope glycoprotein of the human immunodeficiency virus type 1 (HIV-1) with CD4 and certain chemokine coreceptors initiates host cell entry of the virus.
Oleg Chertov, Ning Zhang, Xin Chen, Joost J Oppenheim, Jacek Lubkowski, Connor McGrath, Raymond C Sowder, Bruce J Crise, Anatoli Malyguine, Michele A Kutzler, Amber D Steele, Earl E Henderson, Thomas J Rogers   +12 more
doaj   +1 more source