Evidence map›Paper›PMID 25617424›Full record

ArticleClinical cancer research : an official journal of the American Association for Cancer Research2015

BRAF Inhibition Stimulates Melanoma-Associated Macrophages to Drive Tumor Growth.

Tao Wang, Min Xiao, Yingbin Ge, Clemens Krepler, Eric Belser, Alfonso Lopez-Coral, Xiaowei Xu, Gao Zhang, Rikka Azuma, Qin Liu and 12 more

Open access · greenAbstract read
In one paragraph

Article in Clinical cancer research : an official journal of the American Association for Cancer Research, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 84 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
84citing papers in PubMed, 1 pooled it
6.0field-weighted citation impact, top 3% 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

84 citing papers in PubMed, 1 synthesis or guideline pooled it, 127 citations in OpenAlex.

  1. Pooled it
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  6. Review
  7. BRAF mutation and tumor immune microenvironment in new era.American journal of cancer research · 2026
    Review
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24 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

22 authors at 1 institution in 1 country.

Tao WangMolecular and Cellular Oncogenesis Program, The Wistar Institute, Philadelphia, Pennsylvania. tao.wang@fda.hhs.gov HerlynM@wistar.org kaufman@wistar.org.
Min XiaoMolecular and Cellular Oncogenesis Program, The Wistar Institute, Philadelphia, Pennsylvania.
Yingbin GeDepartment of Physiology, Nanjing Medical University, Nanjing, China.
Clemens KreplerMolecular and Cellular Oncogenesis Program, The Wistar Institute, Philadelphia, Pennsylvania.
Eric BelserMolecular and Cellular Oncogenesis Program, The Wistar Institute, Philadelphia, Pennsylvania.
Alfonso Lopez-CoralGraduate Program, The Catholic University of America, Washington, District of Columbia.
Xiaowei XuDepartment of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, Pennsylvania.
Gao ZhangMolecular and Cellular Oncogenesis Program, The Wistar Institute, Philadelphia, Pennsylvania.
Rikka AzumaUndergraduate Program, University of Pennsylvania, Philadelphia, Pennsylvania.
Qin LiuMolecular and Cellular Oncogenesis Program, The Wistar Institute, Philadelphia, Pennsylvania.
Rui LiuUndergraduate Program, University of Pennsylvania, Philadelphia, Pennsylvania.
Ling LiMolecular and Cellular Oncogenesis Program, The Wistar Institute, Philadelphia, Pennsylvania.
Ravi K AmaravadiDepartment of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania. Abramson Cancer Center, University of Pennsylvania, Philadelphia, Pennsylvania.
Wei XuAbramson Cancer Center, University of Pennsylvania, Philadelphia, Pennsylvania.
Giorgos KarakousisAbramson Cancer Center, University of Pennsylvania, Philadelphia, Pennsylvania. Department of Surgery, University of Pennsylvania, Philadelphia, Pennsylvania.
Tara C GangadharDepartment of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania. Abramson Cancer Center, University of Pennsylvania, Philadelphia, Pennsylvania.
Lynn M SchuchterDepartment of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania. Abramson Cancer Center, University of Pennsylvania, Philadelphia, Pennsylvania.
Melissa LieuUndergraduate Program, University of the Sciences, Philadelphia, Pennsylvania.
Sanika KhareBiotechnology School of Engineering and Applied Sciences, University of Pennsylvania, Philadelphia, Pennsylvania.
Molly B HalloranMolecular and Cellular Oncogenesis Program, The Wistar Institute, Philadelphia, Pennsylvania.
Meenhard HerlynMolecular and Cellular Oncogenesis Program, The Wistar Institute, Philadelphia, Pennsylvania. tao.wang@fda.hhs.gov HerlynM@wistar.org kaufman@wistar.org.
Russel E KaufmanMolecular and Cellular Oncogenesis Program, The Wistar Institute, Philadelphia, Pennsylvania. tao.wang@fda.hhs.gov HerlynM@wistar.org kaufman@wistar.org.
University of Pennsylvania · US

Funding

Tumor Microenvironment and MetastasisP30CA010815 · NCI · WISTAR INSTITUTE · PI Luis J Montaner · 1985 to 2026
$75.9M
Targeting the MAP and PI3 Kinase Pathways in MelanomaP01CA114046 · NCI · WISTAR INSTITUTE · PI MURPHY, MAUREEN E. · 2008 to 2023
$37.1M
Transformed Esophageal Epithelial Cells and the Tumor MicroenvironmentP01CA098101 · NCI · UNIVERSITY OF PENNSYLVANIA · PI NAKAGAWA, HIROSHI · 2003 to 2023
$31.7M
TUMOR DEVELOPMENT AND PROGRESSION IN HUMAN MELANOCYTESP01CA025874 · NCI · WISTAR INSTITUTE · PI HERLYN, MEENHARD F · 1985 to 2015
$19.0M
Targeted Combination Therapy for MelanomaP50CA174523 · NCI · WISTAR INSTITUTE · PI HERLYN, MEENHARD F · 2014 to 2018
$11.1M
CELL/CELL COMMUNICATION DURING MELANOMA PROGRESSIONR01CA076674 · NCI · WISTAR INSTITUTE · PI HERLYN, MEENHARD F · 1998 to 2015
$4.0M
METASTATIS: BIOLOGICAL PHENOTYPE AND MODELS FOR THERAPYR01CA047159 · NCI · WISTAR INSTITUTE · PI HERLYN, MEENHARD F · 1989 to 2015
$3.9M
HLTF gene silencing: a novel determinant of sensitivity to autophagy inhibitionR01CA169134 · NCI · UNIVERSITY OF PENNSYLVANIA · PI AMARAVADI, RAVI K · 2013 to 2017
$1.7M
NCI NIH HHS CA025874NCI NIH HHS CA047159NCI NIH HHS CA076674NCI NIH HHS CA098101NCI NIH HHS CA114046NCI NIH HHS P01 CA025874NCI NIH HHS P01 CA098101NCI NIH HHS P01 CA114046NCI NIH HHS P30 CA010815NCI NIH HHS P50 CA174523NCI NIH HHS R01 CA047159NCI NIH HHS R01 CA076674NCI NIH HHS R01 CA169134
6 · The paper itself

Abstract

purposeTo investigate the roles of melanoma-associated macrophages in melanoma resistance to BRAF inhibitors (BRAFi). EXPERIMENTAL

designAn in vitro macrophage and melanoma cell coculture system was used to investigate whether macrophages play a role in melanoma resistance to BRAFi. The effects of macrophages in tumor resistance were examined by proliferation assay, cell death assay, and Western blot analyses. Furthermore, two mouse preclinical models were used to validate whether targeting macrophages can increase the antitumor activity of BRAFi. Finally, the number of macrophages in melanoma tissues was examined by immunohistochemistry.

resultsWe demonstrate that in BRAF-mutant melanomas, BRAFi paradoxically activate the mitogen-activated protein kinase (MAPK) pathway in macrophages to produce VEGF, which reactivates the MAPK pathway and stimulates cell growth in melanoma cells. Blocking the MAPK pathway or VEGF signaling then reverses macrophage-mediated resistance. Targeting macrophages increases the antitumor activity of BRAFi in mouse and human tumor models. The presence of macrophages in melanomas predicts early relapse after therapy.

conclusionsOur findings demonstrate that macrophages play a critical role in melanoma resistance to BRAFi, suggesting that targeting macrophages will benefit patients with BRAF-mutant melanoma.

Indexed as

AnimalsBlotting, WesternCoculture TechniquesDrug Resistance, NeoplasmEnzyme-Linked Immunosorbent AssayFemaleFlow CytometryHumansImmunoblottingImmunohistochemistryMacrophagesMelanomaMiceMice, Inbred BALB CMolecular Targeted TherapyProtein Kinase InhibitorsProtein Kinase InhibitorsProto-Oncogene Proteins B-rafRNA, Small Interfering

Identifiers

PMID25617424
PMCPMC4383683
OpenAlexW1971750711

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.