Searching the Resource Information Network

Our searching services are busy right now. Please try again later

  • Register
X
Forgot Password

If you have forgotten your password you can enter your email here and get a temporary password sent to your email.

X

Leaving Community

Are you sure you want to leave this community? Leaving the community will revoke any permissions you have been granted in this community.

No
Yes

Particulate Array of Well-Ordered HIV Clade C Env Trimers Elicits Neutralizing Antibodies that Display a Unique V2 Cap Approach.

Paola Martinez-Murillo | Karen Tran | Javier Guenaga | Gustaf Lindgren | Monika Àdori | Yu Feng | Ganesh E Phad | Néstor Vázquez Bernat | Shridhar Bale | Jidnyasa Ingale | Viktoriya Dubrovskaya | Sijy O'Dell | Lotta Pramanik | Mats Spångberg | Martin Corcoran | Karin Loré | John R Mascola | Richard T Wyatt | Gunilla B Karlsson Hedestam
Immunity | 2017

The development of soluble envelope glycoprotein (Env) mimetics displaying ordered trimeric symmetry has ushered in a new era in HIV-1 vaccination. The recently reported native, flexibly linked (NFL) design allows the generation of native-like trimers from clinical isolates at high yields and homogeneity. As the majority of infections world-wide are of the clade C subtype, we examined responses in non-human primates to well-ordered subtype C 16055 trimers administered in soluble or high-density liposomal formats. We detected superior germinal center formation and enhanced autologous neutralizing antibodies against the neutralization-resistant (tier 2) 16055 virus following inoculation of liposome-arrayed trimers. Epitope mapping of the neutralizing monoclonal antibodies (mAbs) indicated major contacts with the V2 apex, and 3D electron microscopy reconstructions of Fab-trimer complexes revealed a horizontal binding angle to the Env spike. These vaccine-elicited mAbs target the V2 cap, demonstrating a means to accomplish tier 2 virus neutralization by penetrating the dense N-glycan shield.

Pubmed ID: 28514687

Associated grants

  • Agency: NIAID NIH HHS, United States
    Id: P01 AI104722
  • Agency: NIAID NIH HHS, United States
    Id: UM1 AI100663

Publication data is provided by the National Library of Medicine ® and PubMed ®. Data is retrieved from PubMed ® on a weekly schedule. For terms and conditions see the National Library of Medicine Terms and Conditions.

This is a list of tools and resources that we have found mentioned in this publication.


GraphPad Prism (tool)

RRID:SCR_002798

Statistical analysis software that combines scientific graphing, comprehensive curve fitting (nonlinear regression), understandable statistics, and data organization. Designed for biological research applications in pharmacology, physiology, and other biological fields for data analysis, hypothesis testing, and modeling.

View all literature mentions

CellProfiler Image Analysis Software (tool)

RRID:SCR_007358

Software tool to enable biologists without training in computer vision or programming to quantitatively measure phenotypes from thousands of images automatically. It counts cells and also measures the size, shape, intensity and texture of every cell (and every labeled subcellular compartment) in every image. It was designed for high throughput screening but can perform automated image analysis for images from time-lapse movies and low-throughput experiments. CellProfiler has an increasing number of algorithms to identify and measure properties of neuronal cell types.

View all literature mentions

NIH AIDS Reagent Program (tool)

RRID:SCR_023191

NIH HIV Reagent Program has been managed under contract by American Type Culture Collection (ATCC) since 2020. ATCC shall maintain the NIH HIV Reagent Program through identification, acquisition, production, receipt, storage, maintenance, distribution and disposal of biological and chemical research organisms and materials for HIV and other infectious diseases for use in basic and translational research.

View all literature mentions

CD4 (antibody)

RRID:AB_393789

This monoclonal targets CD4

View all literature mentions

BV711 Mouse Anti-Human CD20 (antibody)

RRID:AB_2313579

This monoclonal targets human CD20

View all literature mentions

LRRC74A Polyclonal Antibody (antibody)

RRID:AB_2643552

This unknown targets LRRC74A

View all literature mentions

Phospho-DARPP-32 (Thr75) Polyclonal Antibody (antibody)

RRID:AB_560609

This unknown targets Phospho-DARPP-32 (Thr75)

View all literature mentions

Ki-67 (antibody)

RRID:AB_2266296

This unknown targets Ki-67

View all literature mentions

TZM-bl (cell line)

RRID:CVCL_B478

Cell line TZM-bl is a Cancer cell line with a species of origin Homo sapiens

View all literature mentions