Evidence map›Paper›PMID 26491897›Full record

ArticlemAbs2016

Rapid isolation of dengue-neutralizing antibodies from single cell-sorted human antigen-specific memory B-cell cultures.

Kara S Cox, Aimin Tang, Zhifeng Chen, Melanie S Horton, Hao Yan, Xin-Min Wang, Sheri A Dubey, Daniel J DiStefano, Andrew Ettenger, Rachel H Fong and 3 more

Open access · goldAbstract read
In one paragraph

Article in mAbs, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
5.0field-weighted citation impact, top 5% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

33 citing papers in PubMed, 47 citations in OpenAlex.

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  19. Novel vaccines: Technology and development.The Journal of allergy and clinical immunology · 2019
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

13 authors at 3 institutions in 2 countries.

Kara S Coxa Department of Infectious Diseases and Vaccines-West Point ; PA; Merck Research Laboratories; Merck & Co.; Inc. Kenilworth ; NJ ; USA.
Aimin Tanga Department of Infectious Diseases and Vaccines-West Point ; PA; Merck Research Laboratories; Merck & Co.; Inc. Kenilworth ; NJ ; USA.
Zhifeng Chena Department of Infectious Diseases and Vaccines-West Point ; PA; Merck Research Laboratories; Merck & Co.; Inc. Kenilworth ; NJ ; USA.
Melanie S Hortona Department of Infectious Diseases and Vaccines-West Point ; PA; Merck Research Laboratories; Merck & Co.; Inc. Kenilworth ; NJ ; USA.
Hao Yana Department of Infectious Diseases and Vaccines-West Point ; PA; Merck Research Laboratories; Merck & Co.; Inc. Kenilworth ; NJ ; USA.
Xin-Min Wanga Department of Infectious Diseases and Vaccines-West Point ; PA; Merck Research Laboratories; Merck & Co.; Inc. Kenilworth ; NJ ; USA.
Sheri A Dubeya Department of Infectious Diseases and Vaccines-West Point ; PA; Merck Research Laboratories; Merck & Co.; Inc. Kenilworth ; NJ ; USA.
Daniel J DiStefanoa Department of Infectious Diseases and Vaccines-West Point ; PA; Merck Research Laboratories; Merck & Co.; Inc. Kenilworth ; NJ ; USA.
Andrew Ettengerb Integral Molecular Inc. ; Philadelphia ; PA ; USA.
Rachel H Fongb Integral Molecular Inc. ; Philadelphia ; PA ; USA.
Benjamin J Doranzb Integral Molecular Inc. ; Philadelphia ; PA ; USA.
Danilo R Casimiroa Department of Infectious Diseases and Vaccines-West Point ; PA; Merck Research Laboratories; Merck & Co.; Inc. Kenilworth ; NJ ; USA.
Kalpit A Voraa Department of Infectious Diseases and Vaccines-West Point ; PA; Merck Research Laboratories; Merck & Co.; Inc. Kenilworth ; NJ ; USA.
Merck (Japan) · JPMerck & Co., Inc., Rahway, NJ, USA (United States) · USPhiladelphia University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Monitoring antigen-specific memory B cells and the antibodies they encode is important for understanding the specificity, breadth and duration of immune response to an infection or vaccination. The antibodies isolated could further help design vaccine antigens for raising relevant protective immune responses. However, developing assays to measure and isolate antigen-specific memory B cells is technically challenging due to the low frequencies of these cells that exist in the circulating blood. Here, we describe a flow cytometry method to identify and isolate dengue envelope-specific memory B cells using a labeled dengue envelope protein. We enumerated dengue-envelope specific memory B cells from a cohort of dengue seropositive donors using this direct flow cytometry assay. A more established and conventional assay, the cultured B ELISPOT, was used as a benchmark comparator. Furthermore, we were able to confirm the single-sorted memory B-cell specificity by culturing B cells and differentiating them into plasma cells using cell lines expressing CD40L. The culture supernatants were assayed for antigen binding and the ability of the antibodies to neutralize the cognate dengue virus. Moreover, we successfully isolated the heavy and light Ig sequences and expressed them as full-length recombinant antibodies to reproduce the activity seen in culture supernatants. Mapping of these antibodies revealed a novel epitope for dengue 2 virus serotype. In conclusion, we established a reproducible methodology to enumerate antigen-specific memory B cells and assay their encoded antibodies for functional characterization.

Indexed as

Immunologic MemoryAntibodies, NeutralizingAntibodies, ViralB-LymphocytesCell Culture TechniquesDengue VirusFemaleFlow CytometryHumansMaleViral Envelope ProteinsAntibodies, NeutralizingAntibodies, ViralViral Envelope Proteinsantigen-specificcell sortingdengue virusmemory B cellvaccine

Identifiers

PMID26491897
PMCPMC4966506
OpenAlexW2161617385

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.