Evidence map›Paper›PMID 28846506›Full record

ArticlemAbs

Rare, high-affinity mouse anti-PD-1 antibodies that function in checkpoint blockade, discovered using microfluidics and molecular genomics.

Adam S Adler, Rena A Mizrahi, Matthew J Spindler, Matthew S Adams, Michael A Asensio, Robert C Edgar, Jackson Leong, Renee Leong, David S Johnson

Open access · goldAbstract read
In one paragraph

Article in mAbs. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
4.3field-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

29 citing papers in PubMed, 39 citations in OpenAlex.

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  9. Fluorescence-activated droplet sequencing (FAD-seq) directly provides sequences of screening hits in antibody discovery.Proceedings of the National Academy of Sciences of the United States of America · 2024
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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

9 authors at 2 institutions in 1 country.

Adam S Adlera GigaGen Inc. , 407 Cabot Road, South San Francisco , CA , USA.
Rena A Mizrahia GigaGen Inc. , 407 Cabot Road, South San Francisco , CA , USA.
Matthew J Spindlera GigaGen Inc. , 407 Cabot Road, South San Francisco , CA , USA.
Matthew S Adamsa GigaGen Inc. , 407 Cabot Road, South San Francisco , CA , USA.
Michael A Asensioa GigaGen Inc. , 407 Cabot Road, South San Francisco , CA , USA.
Robert C Edgara GigaGen Inc. , 407 Cabot Road, South San Francisco , CA , USA.
Jackson Leonga GigaGen Inc. , 407 Cabot Road, South San Francisco , CA , USA.
Renee Leonga GigaGen Inc. , 407 Cabot Road, South San Francisco , CA , USA.
David S Johnsona GigaGen Inc. , 407 Cabot Road, South San Francisco , CA , USA.
Cabot (United States) · USGigaGen (United States) · US

Funding

Next-Generation Antibody Discovery and Development TechnologyR44CA187852 · NCI · GIGAGEN, INC. · PI JOHNSON, DAVID SCOTT · 2016 to 2018
$1.6M
NCI NIH HHS R44 CA187852
6 · The paper itself

Abstract

Conventionally, mouse hybridomas or well-plate screening are used to identify therapeutic monoclonal antibody candidates. In this study, we present an alternative to hybridoma-based discovery that combines microfluidics, yeast single-chain variable fragment (scFv) display, and deep sequencing to rapidly interrogate and screen mouse antibody repertoires. We used our approach on six wild-type mice to identify 269 molecules that bind to programmed cell death protein 1 (PD-1), which were present at an average of 1 in 2,000 in the pre-sort scFv libraries. Two rounds of fluorescence-activated cell sorting (FACS) produced populations of PD-1-binding scFv with a mean enrichment of 800-fold, whereas most scFv present in the pre-sort mouse repertoires were de-enriched. Therefore, our work suggests that most of the antibodies present in the repertoires of immunized mice are not strong binders to PD-1. We observed clusters of related antibody sequences in each mouse following FACS, suggesting evolution of clonal lineages. In the pre-sort repertoires, these putative clonal lineages varied in both the complementary-determining region (CDR)3K and CDR3H, while the FACS-selected PD-1-binding subsets varied primarily in the CDR3H. PD-1 binders were generally not highly diverged from germline, showing 98% identity on average with germline V-genes. Some CDR3 sequences were discovered in more than one animal, even across different mouse strains, suggesting convergent evolution. We synthesized 17 of the anti-PD-1 binders as full-length monoclonal antibodies. All 17 full-length antibodies bound recombinant PD-1 with K

Indexed as

AnimalsAntibodies, MonoclonalAntibody AffinityComplementarity Determining RegionsFlow CytometryGenomicsHigh-Throughput Nucleotide SequencingHumansHybridomasMiceMicrofluidicsPeptide LibraryProgrammed Cell Death 1 ReceptorProtein BindingSingle-Chain AntibodiesAntibodies, MonoclonalComplementarity Determining RegionsPdcd1 protein, mousePeptide LibraryProgrammed Cell Death 1 ReceptorSingle-Chain Antibodiescheckpoint inhibitorsdeep sequencingmicrofluidicsmouse repertoirePD-1yeast display

Identifiers

PMID28846506
PMCPMC5680806
OpenAlexW2747769012

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.