Evidence map›Paper›PMID 25694334›Full record

ArticleProtein science : a publication of the Protein Society2015

Native mass spectrometry and ion mobility characterization of trastuzumab emtansine, a lysine-linked antibody drug conjugate.

Julien Marcoux, Thierry Champion, Olivier Colas, Elsa Wagner-Rousset, Nathalie Corvaïa, Alain Van Dorsselaer, Alain Beck, Sarah Cianférani

Open access · bronzeAbstract read
In one paragraph

Article in Protein science : a publication of the Protein Society, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
18.9field-weighted citation impact, top 1% 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

37 citing papers in PubMed, 135 citations in OpenAlex.

  1. Trial
  2. Targeting Adaptive and Innate Immune Responses with Covalent Aptamers.Journal of the American Chemical Society · 2026
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  5. To 200,000ACS central science · 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

8 authors at 2 institutions in 1 country.

Julien MarcouxBioOrganic Mass Spectrometry Laboratory (LSMBO), IPHC, Université de Strasbourg, 25 rue Becquerel, 67087, Strasbourg, France.
Thierry ChampionCentre d'Immunologie Pierre-Fabre (CIPF), 5 Av. Napoléon III, BP 60497, 74164, Saint-Julien-en-Genevois, France.
Olivier ColasCentre d'Immunologie Pierre-Fabre (CIPF), 5 Av. Napoléon III, BP 60497, 74164, Saint-Julien-en-Genevois, France.
Elsa Wagner-RoussetCentre d'Immunologie Pierre-Fabre (CIPF), 5 Av. Napoléon III, BP 60497, 74164, Saint-Julien-en-Genevois, France.
Nathalie CorvaïaCentre d'Immunologie Pierre-Fabre (CIPF), 5 Av. Napoléon III, BP 60497, 74164, Saint-Julien-en-Genevois, France.
Alain Van DorsselaerBioOrganic Mass Spectrometry Laboratory (LSMBO), IPHC, Université de Strasbourg, 25 rue Becquerel, 67087, Strasbourg, France.
Alain BeckCentre d'Immunologie Pierre-Fabre (CIPF), 5 Av. Napoléon III, BP 60497, 74164, Saint-Julien-en-Genevois, France.
Sarah CianféraniBioOrganic Mass Spectrometry Laboratory (LSMBO), IPHC, Université de Strasbourg, 25 rue Becquerel, 67087, Strasbourg, France.
Center of Immunology Pierre Fabre · FRCentre National de la Recherche Scientifique · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Antibody-drug conjugates (ADCs) are biochemotherapeutics consisting of a cytotoxic chemical drug linked covalently to a monoclonal antibody. Two main classes of ADCs, namely cysteine and lysine conjugates, are currently available on the market or involved in clinical trials. The complex structure and heterogeneity of ADCs makes their biophysical characterization challenging. For cysteine conjugates, hydrophobic interaction chromatography is the gold standard technique for studying drug distribution, the naked antibody content, and the average drug to antibody ratio (DAR). For lysine ADC conjugates on the other hand, which are not amenable to hydrophobic interaction chromatography because of their higher heterogeneity, denaturing mass spectrometry (MS) and UV/Vis spectroscopy are the most powerful approaches. We report here the use of native MS and ion mobility (IM-MS) for the characterization of trastuzumab emtansine (T-DM1, Kadcyla(®)). This lysine conjugate is currently being considered for the treatment of human epidermal growth factor receptor 2 (HER2)-positive breast cancer, and combines the anti-HER2 antibody trastuzumab (Herceptin(®)), with the cytotoxic microtubule-inhibiting maytansine derivative, DM1. We show that native MS combined with high-resolution measurements and/or charge reduction is beneficial in terms of the accurate values it provides of the average DAR and the drug load profiles. The use of spectral deconvolution is discussed in detail. We report furthermore the use of native IM-MS to directly determine DAR distribution profiles and average DAR values, as well as a molecular modeling investigation of positional isomers in T-DM1.

Indexed as

Ado-Trastuzumab EmtansineAntibodies, Monoclonal, HumanizedAntineoplastic AgentsHumansImmunoconjugatesIsomerismLysineMass SpectrometryMaytansineModels, MolecularTrastuzumabAdo-Trastuzumab EmtansineAntibodies, Monoclonal, HumanizedAntineoplastic AgentsImmunoconjugatesLysineMaytansineTrastuzumabantibody-drug conjugate (ADCs)drug to antibody ratio (DAR)ion mobility mass spectrometryKadcyla®monoclonal antibodynative mass spectrometryT-DM1

Identifiers

PMID25694334
PMCPMC4534172
OpenAlexW1919927381

What OpenQuestion holds

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Registered trials

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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.