Evidence map›Paper›PMID 24046373›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2013

Targeted delivery of proapoptotic peptides to tumor-associated macrophages improves survival.

Maryelise Cieslewicz, Jingjing Tang, Jonathan L Yu, Hua Cao, Maja Zavaljevski, Koka Motoyama, Andre Lieber, Elaine W Raines, Suzie H Pun

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 161 papers.

0numbers the graph read from it
0cells of the map it votes in
161citing papers in PubMed
7.6field-weighted citation impact, top 2% 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

161 citing papers in PubMed, 313 citations in OpenAlex.

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  10. The YYR (YY1- RKIP) Regulatory Axis in the pathogenesis of Cancer and Immune Evasion.Journal of experimental & clinical cancer research : CR · 2025
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101 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 2 institutions in 1 country.

Maryelise CieslewiczDepartments of Bioengineering and Medical Genetics, University of Washington, Seattle, WA 98195.
Jingjing Tang
Jonathan L Yu
Hua Cao
Maja Zavaljevski
Koka Motoyama
Andre Lieber
Elaine W Raines
Suzie H Pun
University of Washington · USHarborview Medical Center · US

Funding

VLA-4 and VCAM-1 in Advanced AtherosclerosisP01HL018645 · NHLBI · UNIVERSITY OF WASHINGTON · PI CHAIT, ALAN · 1985 to 2010
$23.9M
Role of ADAMs in Endothelial Inflammatory ResponseR01HL067267 · NHLBI · UNIVERSITY OF WASHINGTON · PI BORNFELDT, KARIN E. · 2002 to 2015
$3.9M
Novel Targeting Ligands for Sub-populations of monocyte-derived cellsR21HL093385 · NHLBI · UNIVERSITY OF WASHINGTON · PI PUN, SUZIE H. · 2009 to 2010
$429k
NHLBI NIH HHS P01 HL018645NHLBI NIH HHS R01 HL067267NHLBI NIH HHS R21 HL093385
6 · The paper itself

Abstract

Most current cancer therapies focus on killing malignant cells, but these cells are often genetically unstable and can become resistant to chemotherapy. Tumor-associated macrophages (TAMs) facilitate disease progression by promoting angiogenesis and tumor cell growth, as well as by suppressing the adaptive immune response. TAMs are therefore potential targets for adjuvant anticancer therapies. However, resident macrophages are critical to host defense, and preferential ablation of TAMs remains challenging. Macrophage activation is broadly categorized as classically activated, or M1, and alternatively activated, or M2, and TAMs in the tumor microenvironment have been shown to adopt the anti-inflammatory, M2-like phenotype. To date, there are no methods for specific molecular targeting of TAMs. In this work, we report the discovery of a unique peptide sequence, M2pep, identified using a subtractive phage biopanning strategy against whole cells. The peptide preferentially binds to murine M2 cells, including TAMs, with low affinity for other leukocytes. Confocal imaging demonstrates the accumulation of M2pep in TAMs in vivo after tail vein injection. Finally, tail vein injection of an M2pep fusion peptide with a proapoptotic peptide delays mortality and selectively reduces the M2-like TAM population. This work therefore describes a molecularly targeted construct for murine TAMs and provides proof of concept of this approach as an anticancer treatment. In addition, M2pep is a useful tool for murine M2 macrophage identification and for modulating M2 macrophages in other murine models of disease involving M2 cells.

Indexed as

AnimalsApoptosisDrug Delivery SystemsFlow CytometryImmunity, InnateMacrophagesMiceMicroscopy, ConfocalNeoplasmsPeptide LibraryPeptidesSurvival AnalysisPeptide LibraryPeptidesflow cytometryimmunomodulationmacrophage polarizationpeptide phage displaytumor targeting

Identifiers

PMID24046373
PMCPMC3791765
OpenAlexW2093619322

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.