Evidence map›Paper›PMID 21749705›Full record

ArticleMolecular cancer2011

The monoclonal antibody Zt/f2 targeting RON receptor tyrosine kinase as potential therapeutics against tumor growth-mediated by colon cancer cells.

Hang-Ping Yao, Yong-Qing Zhou, Qi Ma, Sunny Guin, Snehal S Padhye, Rui-Wen Zhang, Ming-Hai Wang

Open access · goldAbstract read
In one paragraph

Article in Molecular cancer, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 1 pooled it
2.6field-weighted citation impact, top 9% 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

28 citing papers in PubMed, 1 synthesis or guideline pooled it, 56 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Article
  20. Article
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

7 authors at 3 institutions in 2 countries.

Hang-Ping YaoState Key Laboratory for Diagnosis and Treatment of Infectious Diseases, First Affiliated Hospital, Zhejiang University College of Medicine, Hangzhou, Zhejiang 310003, PR China.
Yong-Qing Zhou
Qi Ma
Sunny Guin
Snehal S Padhye
Rui-Wen Zhang
Ming-Hai Wang
First Affiliated Hospital Zhejiang University · CNTexas Tech University · USTexas Tech University Health Sciences Center · US

Funding

The RON Receptor in the Invasive Growth of Colon CancersR01CA091980 · NCI · UNIVERSITY OF COLORADO DENVER · PI WANG, MING-HAI · 2002 to 2012
$2.4M
MDM2 AS A NEGATIVE REGULATOR OF P21 WAF1/CIP1R01CA112029 · NCI · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI ZHANG, RUIWEN · 2005 to 2009
$1.3M
NCI NIH HHS R01CA112029NCI NIH HHS R01CA91980
6 · The paper itself

Abstract

backgroundOverexpression of the RON receptor tyrosine kinase contributes to epithelial cell transformation, malignant progression, and acquired drug resistance. RON also has been considered as a potential target for therapeutic intervention. This study determines biochemical features and inhibitory activity of a mouse monoclonal antibody (mAb) Zt/f2 in experimental cancer therapy.

resultsZt/f2 is a mouse IgG2a mAb that is highly specific and sensitive to human RON and its oncogenic variants such as RON160 (ED(50) = 2.3 nmol/L). Receptor binding studies revealed that Zt/f2 interacts with an epitope(s) located in a 49 amino acid sequence coded by exon 11 in the RON β-chain extracellular sequences. This sequence is critical in regulating RON maturation and phosphorylation. Zt/f2 did not compete with ligand macrophage-stimulating protein for binding to RON; however, its engagement effectively induced RON internalization, which diminishes RON expression and impairs downstream signaling activation. These biochemical features provide the cellular basis for the use of Zt/f2 to inhibit tumor growth in animal model. Repeated administration of Zt/f2 as a single agent into Balb/c mice results in partial inhibition of tumor growth caused by transformed NIH-3T3 cells expressing oncogenic RON160. Colon cancer HT-29 cell-mediated tumor growth in athymic nude mice also was attenuated following Zt/f2 treatment. In both cases, ~50% inhibition of tumor growth as measured by tumor volume was achieved. Moreover, Zt/f2 in combination with 5-fluorouracil showed an enhanced inhibition effect of ~80% on HT-29 cell-mediated tumor growth in vivo.

conclusionsZt/f2 is a potential therapeutic mAb capable of inhibiting RON-mediated oncogenesis by colon cancer cells in animal models. The inhibitory effect of Zt/f2 in vivo in combination with chemoagent 5-fluorouracil could represent a novel strategy for future colon cancer therapy.

Indexed as

3T3 CellsAdenocarcinomaAnimalsAntibodies, MonoclonalCell Growth ProcessesColonic NeoplasmsHT29 CellsHumansMiceMice, Inbred BALB CModels, BiologicalMolecular Targeted TherapyNIH 3T3 CellsReceptor Protein-Tyrosine KinasesXenograft Model Antitumor AssaysAntibodies, MonoclonalReceptor Protein-Tyrosine KinasesRON protein

Identifiers

PMID21749705
PMCPMC3142532
OpenAlexW2118942065

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.