Volume 34, Issue 1 pp. 178-185
Gastroenterology

Lactobacillus acidophilus suppresses intestinal inflammation by inhibiting endoplasmic reticulum stress

Da Hye Kim

Da Hye Kim

Department of Internal Medicine and Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea

Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Korea

These authors contributed equally to this work.Search for more papers by this author
Soochan Kim

Soochan Kim

Department of Internal Medicine and Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea

Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Korea

These authors contributed equally to this work.Search for more papers by this author
Jin Ha Lee

Jin Ha Lee

Department of Internal Medicine and Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea

Department of Health Promotion, Severance Hospital, Seoul, Korea

These authors contributed equally to this work.Search for more papers by this author
Jae Hyeon Kim

Jae Hyeon Kim

Department of Internal Medicine and Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea

Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea

Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Korea

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Xiumei Che

Xiumei Che

Department of Internal Medicine and Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea

Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea

Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Korea

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Hyun Woo Ma

Hyun Woo Ma

Department of Internal Medicine and Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea

Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea

Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Korea

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Dong Hyuk Seo

Dong Hyuk Seo

Department of Internal Medicine and Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea

Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea

Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Korea

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Tae II Kim

Tae II Kim

Department of Internal Medicine and Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea

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Won Ho Kim

Won Ho Kim

Department of Internal Medicine and Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea

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Seung Won Kim

Corresponding Author

Seung Won Kim

Department of Internal Medicine and Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea

Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea

Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Korea

Correspondence

Dr Jae Hee Cheon, Department of Internal Medicine, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Korea.

Email: [email protected]

Dr Seung Won Kim, Department of Severance Biomedical Science Institute, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Korea.

Email: [email protected]

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Jae Hee Cheon

Corresponding Author

Jae Hee Cheon

Department of Internal Medicine and Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea

Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea

Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Korea

Correspondence

Dr Jae Hee Cheon, Department of Internal Medicine, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Korea.

Email: [email protected]

Dr Seung Won Kim, Department of Severance Biomedical Science Institute, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Korea.

Email: [email protected]

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First published: 22 June 2018
Citations: 67
Declaration of conflict of interest: The authors have no conflicts of interest to disclose.

Abstract

Background and Aim

Nuclear factor kappa B (NF-κB) activation and endoplasmic reticulum (ER) stress signaling play significant roles in the pathogenesis of inflammatory bowel disease (IBD). Thus, we evaluated whether new therapeutic probiotics have anti-colitic effects, and we investigated their mechanisms related to NF-κB and ER-stress pathways.

Methods

Luciferase, nitric oxide, and cytokine assays using HT-29 or RAW264.7 cells were conducted. Mouse colitis was induced using dextran sulfate sodium and confirmed by disease activity index and histology. Macrophages and T-cell subsets in isolated peritoneal cavity cells and splenocytes were analyzed by flow cytometry. Gene and cytokine expression profiles were determined using reverse-transcription polymerase chain reaction.

Results

Lactobacillus acidophilus (LA1) and Pediococcus pentosaceus inhibited nitric oxide production in RAW264.7 cells, but only LA1 inhibited Tnfa and induced Il10 expression. LA1 increased the lifespan of dextran sulfate sodium-treated mice and attenuated the severity of colitis by inducing M2 macrophages in peritoneal cavity cells and Th2 and Treg cells in splenocytes. The restoration of goblet cells in the colon was accompanied by the induction of Il10 expression and the suppression of pro-inflammatory cytokines. Additionally, we found that LA1 exerts an anti-colitic effect by improving ER stress in HT-29 cells as well as in vivo.

Conclusions

We showed that LA1 significantly interferes with ER stress and suppresses NF-κB activation. Our findings suggest that LA1 can be used as a potent immunomodulator in IBD treatment, and the regulation of ER stress may have significant implications in treating IBD.

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