Front. Cell. Infect. Microbiol. Frontiers in Cellular and Infection Microbiology Front. Cell. Infect. Microbiol. 2235-2988 Frontiers Media S.A. 10.3389/fcimb.2025.1639671 Cellular and Infection Microbiology Retraction Retraction: The two-component system CpxRA negatively regulates the locus of enterocyte effacement of enterohemorrhagic Escherichia coli involving σ32 and Lon protease Frontiers Editorial Office *

Approved by: Frontiers Editorial Office, Frontiers Media SA, Switzerland

*Correspondence: Frontiers Editorial Office, research.integrity@frontiersin.org

12 06 2025 2025 15 1639671 02 06 2025 03 06 2025 Copyright © 2025 Frontiers Editorial Office 2025 Frontiers Editorial Office

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 A Retraction of the Original Research Article The two-component system CpxRA negatively regulates the locus of enterocyte effacement of enterohemorrhagic Escherichia coli involving σ32 and Lon protease By De la Cruz MA, Morgan JK, Ares MA, Yáñez-Santos JA, Riordan JT and Girón JA (2016). Front. Cell. Infect. Microbiol. 6:11. doi:  10.3389/fcimb.2016.00011 section-in-acceptance Molecular Bacterial Pathogenesis

The journal retracts the 05 February 2016 article cited above.

Following publication, concerns were raised regarding the integrity of the images in the published figures. Image duplication concerns were identified within Figure 1 and Figure 3. The authors failed to provide a satisfactory explanation during the investigation, which was conducted in accordance with Frontiers’ policies.

This retraction was approved by the Chief Executive Editor of Frontiers. The authors received a communication regarding the retraction and had a chance to respond. This communication has been recorded by the publisher.

Frontiers would like to thank the users on PubPeer for bringing the published article to our attention.