RETRACTED: Obesity-induced increase in tumor necrosis factor-α leads to development of colon cancer in mice.
This article has been retracted: please see Elsevier Policy on Article Withdrawal (https://www.elsevier.com/about/our-business/policies/article-withdrawal).

This article has been retracted at the request of the Editor-in-Chief and Deputy Editor-in-Chief following an investigation into the data that were presented in several figures within the article.

A number of images used in this article are believed to be duplicated images. The authors stated that they inadvertently inserted images of the wrong blots in several of the figures, resulting in the duplications; however, they did not address all of the concerns raised. Because the editors were no longer confident in the conclusions of the article based on these incorrect data, a decision was made to retract the paper.

All authors have been notified of this decision. The University of Campinas (UNICAMP) in São Paulo, Brazil was contacted regarding these concerns, but to date the journal has received no response.
Department of Internal Medicine, Faculty of Medical Sciences, State University of Campinas, Campinas, São Paulo, Brazil.
Marcelo B S
MBS
Flores
Department of Internal Medicine, Faculty of Medical Sciences, State University of Campinas, Campinas, São Paulo, Brazil.
Guilherme Z
GZ
Rocha
Department of Anatomy, Cell Biology, Physiology and Biophysics, State University of Campinas, Campinas, São Paulo, Brazil.
Danilo M
DM
Damas-Souza
Department of Internal Medicine, Faculty of Medical Sciences, State University of Campinas, Campinas, São Paulo, Brazil.
Felipe
F
Osório-Costa
Department of Internal Medicine, Faculty of Medical Sciences, State University of Campinas, Campinas, São Paulo, Brazil.
Marília M
MM
Dias
Department of Internal Medicine, Faculty of Medical Sciences, State University of Campinas, Campinas, São Paulo, Brazil.
Eduardo R
ER
Ropelle
Department of Internal Medicine, Faculty of Medical Sciences, State University of Campinas, Campinas, São Paulo, Brazil.
Juliana A
JA
Camargo
Department of Internal Medicine, Faculty of Medical Sciences, State University of Campinas, Campinas, São Paulo, Brazil.
Rita B
RB
de Carvalho
Department of Anatomy, Cell Biology, Physiology and Biophysics, State University of Campinas, Campinas, São Paulo, Brazil.
Hernandes F
HF
Carvalho
Department of Internal Medicine, Faculty of Medical Sciences, State University of Campinas, Campinas, São Paulo, Brazil.
Mario J A
MJA
Saad
Department of Internal Medicine, Faculty of Medical Sciences, State University of Campinas, Campinas, São Paulo, Brazil. Electronic address: carvalheirajbc@uol.com.br.
José B C
JBC
Carvalheira
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D000911:Antibodies, Monoclonal; D000970:Antineoplastic Agents; D007004:Hypoglycemic Agents; D018836:Inflammation Mediators; D007328:Insulin; D045162:Thiazolidinediones; D014409:Tumor Necrosis Factor-alpha; D016264:Dextran Sulfate; D000069285:Infliximab; C546843:mTOR protein, mouse; D058539:Phosphatidylinositol 3-Kinase; D051057:Proto-Oncogene Proteins c-akt; D058570:TOR Serine-Threonine Kinases; D051550:I-kappa B Kinase; D048031:JNK Mitogen-Activated Protein Kinases; D001397:Azoxymethane; D000077205:Pioglitazone