Evidence map›Paper›PMID 23848581›Full record

ArticleJournal of the American Chemical Society2013

In vivo activation of the p53 tumor suppressor pathway by an engineered cyclotide.

Yanbin Ji, Subhabrata Majumder, Melissa Millard, Radhika Borra, Tao Bi, Ahmed Y Elnagar, Nouri Neamati, Alexander Shekhtman, Julio A Camarero

Abstract read
In one paragraph

Article in Journal of the American Chemical Society, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 86 papers.

0numbers the graph read from it
0cells of the map it votes in
86citing papers in PubMed
12.6field-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

86 citing papers in PubMed, 229 citations in OpenAlex.

  1. Article
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  3. Tangled Tail of Mechanically Interlocked Peptides.Journal of the American Chemical Society · 2026
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  16. Lipidation of a bioactive cyclotide-based CXCR4 antagonist greatly improves its pharmacokinetic profile in vivo.Journal of controlled release : official journal of the Controlled Release Society · 2023
    Article
  17. Article
  18. Review
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  20. Review

26 more citing papers are in PubMed but not listed here.

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 3 institutions in 1 country.

Yanbin Ji *Department of Pharmacology and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA 90033, USA.
Subhabrata Majumder *Department of Chemistry, State University of New York, Albany, NY 12222, USA.
Melissa Millard *Department of Pharmacology and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA 90033, USA.
Radhika Borra *Department of Pharmacology and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA 90033, USA.
Tao Bi *Department of Pharmacology and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA 90033, USA.
Ahmed Y Elnagar *Department of Pharmacology and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA 90033, USA.
Nouri NeamatiDepartment of Pharmacology and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA 90033, USA.
Alexander ShekhtmanDepartment of Chemistry, State University of New York, Albany, NY 12222, USA.
Julio A CamareroDepartment of Pharmacology and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA 90033, USA.
University of Southern California · USUniversity at Albany, State University of New York · USSouthern California University for Professional Studies · US

Funding

Southern California Clinical and Translational Science InstituteUL1TR000130 · NCATS · UNIVERSITY OF SOUTHERN CALIFORNIA · PI BUCHANAN, THOMAS A · 2012 to 2015
$36.0M
Real Time (RT) In-cell NMR technology to study protein interactions in live cellsR01GM085006 · NIGMS · STATE UNIVERSITY OF NEW YORK AT ALBANY · PI SHEKHTMAN, ALEXANDER · 2010 to 2021
$2.4M
Cell-based screening and selection of cyclotide-based capture reagents for proteiR01GM090323 · NIGMS · UNIVERSITY OF SOUTHERN CALIFORNIA · PI CAMARERO, JULIO A · 2009 to 2013
$2.0M
NCATS NIH HHS UL1 TR000130NIGMS NIH HHS R01 GM085006NIGMS NIH HHS R01-GM085006NIGMS NIH HHS R01 GM090323NIGMS NIH HHS R01-GM090323
6 · The paper itself

Abstract

The overexpression of Hdm2 and HdmX is a common mechanism used by many tumor cells to inactive the p53 tumor suppressor pathway promoting cell survival. Targeting Hdm2 and HdmX has emerged as a validated therapeutic strategy for treating cancers with wild-type p53. Small linear peptides mimicking the N-terminal fragment of p53 have been shown to be potent Hdm2/HdmX antagonists. The potential therapeutic use of these peptides, however, is limited by their poor stability and bioavailability. Here, we report the engineering of the cyclotide MCoTI-I to efficiently antagonize intracellular p53 degradation. The resulting cyclotide MCo-PMI was able to bind with low nanomolar affinity to both Hdm2 and HdmX, showed high stability in human serum, and was cytotoxic to wild-type p53 cancer cell lines by activating the p53 tumor suppressor pathway both in vitro and in vivo. These features make the cyclotide MCoTI-I an optimal scaffold for targeting intracellular protein-protein interactions.

Indexed as

Amino Acid SequenceAnimalsAntineoplastic AgentsCell Cycle ProteinsCell Line, TumorCyclotidesFemaleHumansMice, NudeModels, MolecularMolecular Sequence DataNeoplasmsNuclear ProteinsProtein EngineeringProtein Interaction MapsProto-Oncogene ProteinsAntineoplastic AgentsCell Cycle ProteinsCyclotidesMDM2 protein, humanMDM4 protein, humanNuclear ProteinsProto-Oncogene ProteinsProto-Oncogene Proteins c-mdm2Tumor Suppressor Protein p53

Identifiers

PMID23848581
PMCPMC3767463
OpenAlexW2142623863

What OpenQuestion holds

Textmetadata
LicenceTDM
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.