Expression of Concern: Resveratrol Enhances Antitumor Activity of TRAIL in Prostate Cancer Xenografts through Activation of FOXO Transcription Factor
Authors:
Published in the journal:
PLoS ONE 14(9)
Category:
Expression of Concern
doi:
https://doi.org/10.1371/journal.pone.0223138
After publication of this article [1], several concerns were raised for Figs 3, 4 and 6:
In Fig 3A, there appears to be overlap between the following image pairs, suggesting that all four of the affected panels may represent data from the same slide:
DR4 TRAIL panel (row 1, column 3) and DR5 Resveratrol panel (row 2, column 2)
DR5 Resveratrol panel and DR5 TRAIL panel (row 2, column 3)
DR4 Resveratrol panel (row 1, column 2) and DR5 TRAIL panel
The authors provide here an updated version of Fig 3A in which they replaced all panels for the DR4 and DR5 immunohistochemistry experiments.
In Fig 4A, regions of overlap were noted between the Bax/Resveratrol, Bax/TRAIL, and Bax/Resveratrol+TRAIL immunohistochemistry panels (row 1, columns 1–3) suggesting that these images were derived from the same original slide. The authors noted that this resulted from errors in Fig preparation, and provide here an updated version of Fig 4A in which they replaced all panels for the Bax immunohistochemistry experiments.
There appears to be a region of overlap between the Fig 5A MMP9 Resveratrol panel (row 2, column 2) and the Fig 6B VEGF Control + TRAIL panel (row 2, column 1), when flipped horizontally. The authors noted that data from the MMP9 Resveratrol experiment (Fig 5A) were included in Fig 6B in error, and they provide here an updated version of Fig 6 in which the Control + TRAIL panel has been replaced.
The authors noted that the quantitative data shown in the published Figures [1] were obtained from direct microscopy and are unaffected by these Figure errors. However, the original image data used in the quantification have not been provided to verify this claim.
The authors apologize for these errors and provide here the underlying image files supporting results in Figs 3–6 as Supporting Information (S1–S5 Files). Updated Figures and their accompanying legends for the full Figs 3–6 are also provided with this notice; these indicate the number of replicates represented in the published bar graphs, with statistical significance. A member of PLOS ONE’s Editorial Board reviewed the updated figure panels and confirmed that the overall conclusions of the study are supported by the new data.
The authors confirm that the underlying data supporting other figures in the published article [1] are available upon request.
The PLOS ONE Editors issue this Expression of Concern to notify readers of the issues with the published figures and to provide the additional supporting data for the affected results.
Supporting information
S1 File [zip]
Quantitative and western blot data available to support the published version of .
S2 File [zip]
Image and quantitative data underlying the published version of .
S3 File [zip]
Image files supporting replacement Bax data in the revised version of .
S4 File [zip]
Underlying data for .
S5 File [zip]
Underlying data for updated version of .
Zdroje
1. Ganapathy S, Chen Q, Singh KP, Shankar S, Srivastava RK (2010) Resveratrol Enhances Antitumor Activity of TRAIL in Prostate Cancer Xenografts through Activation of FOXO Transcription Factor. PLoS ONE 5(12): e15627. https://doi.org/10.1371/journal.pone.0015627 21209944
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