Small but Highly Versatile: The Viral Accessory Protein Vpu

M Volcic, L Wiesmüller, F Kirchhoff - Annual Review of Virology, 2023 - annualreviews.org
Human and simian immunodeficiency viruses (HIVs and SIVs, respectively) encode several
small proteins (Vif, Vpr, Nef, Vpu, and Vpx) that are called accessory because they are not …

The combination of three CD4-induced antibodies targeting highly conserved Env regions with a small CD4-mimetic achieves potent ADCC activity

L Marchitto, J Richard, J Prévost, A Tauzin… - Journal of …, 2024 - journals.asm.org
The majority of naturally elicited antibodies against the HIV-1 envelope glycoproteins (Env)
are non-neutralizing (nnAbs) because they are unable to recognize the Env trimer in its …

Unpredicted protective function of Fc-mediated inhibitory antibodies for HIV and SARS-CoV-2 vaccines

LY Lin, P Gantner, S Li, B Su… - The Journal of Infectious …, 2024 - academic.oup.com
Developing effective vaccines is necessary in combating new virus pandemics. For human
immunodeficiency virus (HIV) and severe acute respiratory syndrome coronavirus 2 (SARS …

CD4 downregulation precedes Env expression and protects HIV-1-infected cells from ADCC mediated by non-neutralizing antibodies

J Richard, G Sannier, L Zhu, J Prévost, L Marchitto… - Mbio, 2024 - journals.asm.org
ABSTRACT HIV-1 envelope glycoprotein (Env) conformation substantially impacts antibody-
dependent cellular cytotoxicity (ADCC). Envs from primary HIV-1 isolates adopt a prefusion …

Potent antibody-dependent cellular cytotoxicity of a V2-specific antibody is not sufficient for protection of macaques against SIV challenge

MW Grunst, HM Gil, AG Grandea III, BJ Snow… - Plos …, 2024 - journals.plos.org
Fc-mediated antibody effector functions, such as antibody-dependent cellular cytotoxicity
(ADCC), can contribute to the containment HIV-1 replication but whether such activities are …

Antibody-dependent cellular cytotoxicity, infected cell binding and neutralization by antibodies to the SIV envelope glycoprotein

MW Grunst, RA Ladd, NM Clark, HM Gil… - PLoS …, 2023 - journals.plos.org
Antibodies specific for diverse epitopes of the simian immunodeficiency virus envelope
glycoprotein (SIV Env) have been isolated from rhesus macaques to provide physiologically …

Impact of HIV-1 Vpu-mediated downregulation of CD48 on NK-cell-mediated antibody-dependent cellular cytotoxicity

L Marchitto, M Benlarbi, J Prévost, A Laumaea… - Mbio, 2023 - Am Soc Microbiol
ABSTRACT HIV-1 evades antibody-dependent cellular cytotoxicity (ADCC) responses not
only by controlling Env conformation and quantity at the cell surface but also by altering NK …

Piperidine CD4-mimetic compounds expose vulnerable Env epitopes sensitizing HIV-1-infected cells to ADCC

S Ding, WD Tolbert, H Zhu, D Lee, L Marchitto… - Viruses, 2023 - mdpi.com
The ability of the HIV-1 accessory proteins Nef and Vpu to decrease CD4 levels contributes
to the protection of infected cells from antibody-dependent cellular cytotoxicity (ADCC) by …

Higher HIV-1 Env gp120-specific antibody-dependent cellular cytotoxicity (ADCC) activity is associated with lower levels of defective HIV-1 provirus

R Yucha, ML Litchford, CS Fish, ZA Yaffe… - Viruses, 2023 - mdpi.com
A cure for HIV-1 (HIV) remains unrealized due to a reservoir of latently infected cells that
persist during antiretroviral therapy (ART), with reservoir size associated with adverse health …

[HTML][HTML] NTB-A and 2B4 Natural Killer Cell Receptors Modulate the Capacity of a Cocktail of Non-Neutralizing Antibodies and a Small CD4-Mimetic to Eliminate HIV-1 …

L Marchitto, A Tauzin, M Benlarbi… - Viruses, 2024 - mdpi.com
Natural Killer (NK) cells have the potential to eliminate HIV-1-infected cells by antibody-
dependent cellular cytotoxicity (ADCC). NK cell activation is tightly regulated by the …