Evidence map›Paper›PMID 33476135›Full record

ArticleBioconjugate chemistry2021

Dual Site-Specific Chemoenzymatic Antibody Fragment Conjugation Using CRISPR-Based Hybridoma Engineering.

Camille M Le Gall, Johan M S van der Schoot, Iván Ramos-Tomillero, Melek Parlak Khalily, Floris J van Dalen, Zacharias Wijfjes, Liyan Smeding, Duco van Dalen, Anna Cammarata, Kimberly M Bonger and 3 more

Open access · hybridAbstract read
In one paragraph

Article in Bioconjugate chemistry, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
3.1field-weighted citation impact, top 8% 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

15 citing papers in PubMed, 25 citations in OpenAlex.

  1. Article
  2. Sortase A Catalyzed Transpeptidation for Protein Bioengineering.Methods in molecular biology (Clifton, N.J.) · 2026
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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 2 institutions in 1 country.

Camille M Le GallDepartment of Tumour Immunology, Radboud Institute for Molecular Life Sciences, Geert Grooteplein Zuid 28, 6525 GA, Nijmegen, The Netherlands.ORCID 0000-0002-5890-5115
Johan M S van der SchootDepartment of Tumour Immunology, Radboud Institute for Molecular Life Sciences, Geert Grooteplein Zuid 28, 6525 GA, Nijmegen, The Netherlands.
Iván Ramos-TomilleroDepartment of Tumour Immunology, Radboud Institute for Molecular Life Sciences, Geert Grooteplein Zuid 28, 6525 GA, Nijmegen, The Netherlands.ORCID 0000-0003-1928-4149
Melek Parlak KhalilyDepartment of Synthetic Organic Chemistry, Radboud University, Heyendaalseweg 135, 6525 AJ, Nijmegen, The Netherlands.
Floris J van DalenDepartment of Tumour Immunology, Radboud Institute for Molecular Life Sciences, Geert Grooteplein Zuid 28, 6525 GA, Nijmegen, The Netherlands.
Zacharias WijfjesDepartment of Tumour Immunology, Radboud Institute for Molecular Life Sciences, Geert Grooteplein Zuid 28, 6525 GA, Nijmegen, The Netherlands.
Liyan SmedingDepartment of Tumour Immunology, Radboud Institute for Molecular Life Sciences, Geert Grooteplein Zuid 28, 6525 GA, Nijmegen, The Netherlands.
Duco van DalenDepartment of Tumour Immunology, Radboud Institute for Molecular Life Sciences, Geert Grooteplein Zuid 28, 6525 GA, Nijmegen, The Netherlands.
Anna CammarataDepartment of Tumour Immunology, Radboud Institute for Molecular Life Sciences, Geert Grooteplein Zuid 28, 6525 GA, Nijmegen, The Netherlands.
Kimberly M BongerInstitute for Chemical Immunology, Geert Grooteplein Zuid 28, 6525 GA, Nijmegen, Netherlands.ORCID 0000-0001-9498-2620
Carl G FigdorDepartment of Tumour Immunology, Radboud Institute for Molecular Life Sciences, Geert Grooteplein Zuid 28, 6525 GA, Nijmegen, The Netherlands.
Ferenc A ScheerenDepartment of Medical Oncology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA, Leiden, The Netherlands.
Martijn VerdoesDepartment of Tumour Immunology, Radboud Institute for Molecular Life Sciences, Geert Grooteplein Zuid 28, 6525 GA, Nijmegen, The Netherlands.
Radboud University Nijmegen · NLLeiden University Medical Center · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Functionalized antibodies and antibody fragments have found applications in the fields of biomedical imaging, theranostics, and antibody-drug conjugates (ADC). In addition, therapeutic and theranostic approaches benefit from the possibility to deliver more than one type of cargo to target cells, further challenging stochastic labeling strategies. Thus, bioconjugation methods to reproducibly obtain defined homogeneous conjugates bearing multiple different cargo molecules, without compromising target affinity, are in demand. Here, we describe a straightforward CRISPR/Cas9-based strategy to rapidly engineer hybridoma cells to secrete Fab' fragments bearing two distinct site-specific labeling motifs, which can be separately modified by two different sortase A mutants. We show that sequential genetic editing of the heavy chain (HC) and light chain (LC) loci enables the generation of a stable cell line that secretes a dual tagged Fab' molecule (DTFab'), which can be easily isolated. To demonstrate feasibility, we functionalized the DTFab' with two distinct cargos in a site-specific manner. This technology platform will be valuable in the development of multimodal imaging agents, theranostics, and next-generation ADCs.

Indexed as

Clustered Regularly Interspaced Short Palindromic RepeatsAntibodies, MonoclonalHybridomasImmunoconjugatesImmunoglobulin Fab FragmentsStochastic ProcessesAntibodies, MonoclonalImmunoconjugatesImmunoglobulin Fab Fragments

Identifiers

PMID33476135
PMCPMC7898269
OpenAlexW3125654861

What OpenQuestion holds

Textmetadata
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.