Front. Immunol. Frontiers in Immunology Front. Immunol. 1664-3224 Frontiers Media S.A. 10.3389/fimmu.2026.1809767 Retraction Retraction: Fexuprazan safeguards the esophagus from hydrochloric acid-induced damage by suppressing NLRP1/Caspase-1/GSDMD pyroptotic pathway Frontiers Editorial Office * Writing – original draft Correspondence: Frontiers Editorial Office, research.integrity@frontiersin.org 20 02 2026 2026 17 1809767 12 02 2026 12 02 2026 Copyright © 2026 Frontiers Editorial Office. 2026 Frontiers Editorial Office https://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. A retraction of the Original Research article Fexuprazan safeguards the esophagus from hydrochloric acid-induced damage by suppressing NLRP1/Caspase-1/GSDMD pyroptotic pathway By Kim SY, Yoon J-H, Jung DH, Kim GH, Kim CH and Lee SK (2024) Front. Immunol. 15:1410904. doi: 10.3389/fimmu.2024.1410904 section-at-acceptance Inflammation

The journal retracts the 16 December 2024 article cited above.

Following publication, concerns were raised regarding the integrity of the images in the published figures. The authors failed to provide a satisfactory explanation during the investigation, which was conducted in accordance with Frontiers’ policies. As a result, the data and conclusions of the article have been deemed unreliable and the article has been retracted.

This retraction was approved by the Chief Editors of Frontiers in Immunology and the Chief Executive Editor of Frontiers. The authors were informed regarding this retraction.

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