Evidence map›Paper›PMID 19340455›Full record

ArticleJournal of cancer research and clinical oncology2009

Antitumor activity of the HER2 dimerization inhibitor pertuzumab on human colon cancer cells in vitro and in vivo.

Michael Pohl, I Stricker, A Schoeneck, K Schulmann, S Klein-Scory, I Schwarte-Waldhoff, M Hasmann, A Tannapfel, W Schmiegel, A Reinacher-Schick

Open access · greenAbstract read
In one paragraph

Article in Journal of cancer research and clinical oncology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
0.7field-weighted citation impact, top 29% 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

9 citing papers in PubMed, 24 citations in OpenAlex.

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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

10 authors at 4 institutions in 1 country.

Michael PohlDepartment of Medicine, Knappschaftskrankenhaus, Ruhr University, In der Schornau 23-25, 44892 Bochum, Germany. Michael.Pohl-4@rub.de
I Stricker
A Schoeneck
K Schulmann
S Klein-Scory
I Schwarte-Waldhoff
M Hasmann
A Tannapfel
W Schmiegel
A Reinacher-Schick
Universitätsklinikum Knappschaftskrankenhaus Bochum · DERuhr University Bochum · DEBG University Hospital Bergmannsheil Bochum · DERoche Pharma AG (Germany) · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe monoclonal antibody pertuzumab represents the first HER2 dimerization inhibitor with unknown activity in colon cancer treatment. We examined the antitumor activity of pertuzumab as a single agent or in combination with erlotinib or irinotecan in human colon cancer cells in vitro and in vivo.

methodsColon cancer cell lines were tested for HER1/HER2 expression by western blot analysis. The effect of pertuzumab on cell cycle distribution was analyzed by FACS. Nude mice bearing xenograft tumors were treated with pertuzumab alone, or in combination either with irinotecan or with erlotinib. Tumor volume was measured repeatedly. Tumor histology was analyzed for necrosis.

resultsSix of nine cell lines showed high expression of HER1/HER2. Pertuzumab inhibited cell cycle progression in various cell lines. Pertuzumab showed minor antitumor activity in xenograft tumors, but significantly inhibited tumor growth when combined with erlotinib (P < 0.001). Combination of pertuzumab with irinotecan had no additional effect on growth of additional tumors. Pertuzumab treated DLD-1 xenograft tumors did not show enhanced necrosis, which, however, was found in HCT116 derived xenografts.

conclusionsPertuzumab has some antitumor activity on human colon cancer cells in vitro and in vivo, in particular when combined with erlotinib. In vivo, pertuzumab combination treatment was not superior to irinotecan monotherapy. These data warrant further investigation of simultaneous HER1/EGFR TKI inhibition and HER1/HER2 dimerization inhibition for colorectal cancer therapy.

Indexed as

AnimalsAntibodies, MonoclonalAntibodies, Monoclonal, HumanizedAntineoplastic Combined Chemotherapy ProtocolsBlotting, WesternCamptothecinCell CycleCell Line, TumorColorectal NeoplasmsDimerizationDrug Therapy, CombinationEpidermal Growth FactorErb-b2 Receptor Tyrosine KinasesErlotinib HydrochlorideFemaleHumansAntibodies, MonoclonalAntibodies, Monoclonal, HumanizedCamptothecinEpidermal Growth FactorERBB2 protein, humanErb-b2 Receptor Tyrosine KinasesErlotinib HydrochlorideIrinotecanpertuzumabQuinazolines

Identifiers

PMID19340455
PMCPMC12160250
OpenAlexW1972343411

What OpenQuestion holds

Textmetadata
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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.