Isolation of food-derived bacteria inducing interleukin-22 in B cells

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Abstract

Recently, we found a novel function of the lactic acid bacterium Tetragenococcus halophilus derived from miso, a fermented soy paste, that induces interleukin (IL)-22 production in B cells preferentially. IL-22 plays a critical role in barrier functions in the gut and skin. We further screened other bacteria species, namely, Enterococcus, Lactobacillus, Lactococcus, Leuconostoc, Weissella, Pediococcus, and Bacillus, in addition to Tetragenococcus and found that some of them possessed robust IL-22-inducible function in B cells in vitro. This process resulted in the augmented expression of activation markers CD86 and CD69 on B and T cells, respectively. However, these observations were not correlated with IL-22 production. We isolated Bacillus coagulans sc-09 from miso and determined it to be the best strain to induce robust IL-22 production in B cells. Furthermore, feeding B. coagulans sc-09 to mice augmented the barrier function of the skin regardless of gut microbiota.

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IL-10 Family Cytokines IL-10 and IL-22: from Basic Science to Clinical Translation

Wenjun Ouyang, Anne O’Garra (2019)

Cytokines are among the most important effector and messenger molecules in the immune system. They profoundly participate in immune responses during infection and inflammation, protecting against or contributing to diseases such as allergy, autoimmunity, and cancer. Manipulating cytokine pathways, therefore, is one of the most effective strategies to treat various diseases. IL-10 family cytokines exert essential functions to maintain tissue homeostasis during infection and inflammation through restriction of excessive inflammatory responses, upregulation of innate immunity, and promotion of tissue repairing mechanisms. Their important functions in diseases are supported by data from many preclinical models, human genetic studies, and clinical interventions. Despite significant efforts, however, there is still no clinically approved therapy through manipulating IL-10 family cytokines. Here, we summarize the recent progress in understanding the biology of this family of cytokines, suggesting more specific strategies to maneuver these cytokines for the effective treatment of inflammatory diseases and cancers.

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The Interleukin-10 Family of Cytokines and Their Role in the CNS

Amanda Burmeister, Ian Marriott (2018)

Resident cells of the central nervous system (CNS) play an important role in detecting insults and initiating protective or sometimes detrimental host immunity. At peripheral sites, immune responses follow a biphasic course with the rapid, but transient, production of inflammatory mediators giving way to the delayed release of factors that promote resolution and repair. Within the CNS, it is well known that glial cells contribute to the onset and progression of neuroinflammation, but it is only now becoming apparent that microglia and astrocytes also play an important role in producing and responding to immunosuppressive factors that serve to limit the detrimental effects of such responses. Interleukin-10 (IL-10) is generally considered to be the quintessential immunosuppressive cytokine, and its ability to resolve inflammation and promote wound repair at peripheral sites is well documented. In the present review article, we discuss the evidence for the production of IL-10 by glia, and describe the ability of CNS cells, including microglia and astrocytes, to respond to this suppressive factor. Furthermore, we review the literature for the expression of other members of the IL-10 cytokine family, IL-19, IL-20, IL-22 and IL-24, within the brain, and discuss the evidence of a role for these poorly understood cytokines in the regulation of infectious and sterile neuroinflammation. In concert, the available data indicate that glia can produce IL-10 and the related cytokines IL-19 and IL-24 in a delayed manner, and these cytokines can limit glial inflammatory responses and/or provide protection against CNS insult. However, the roles of other IL-10 family members within the CNS remain unclear, with IL-20 appearing to act as a pro-inflammatory factor, while IL-22 may play a protective role in some instances and a detrimental role in others, perhaps reflecting the pleiotropic nature of this cytokine family. What is clear is that our current understanding of the role of IL-10 and related cytokines within the CNS is limited at best, and further research is required to define the actions of this understudied family in inflammatory brain disorders.

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Bacillus coagulans MTCC 5856 supplementation in the management of diarrhea predominant Irritable Bowel Syndrome: a double blind randomized placebo controlled pilot clinical study

Muhammed Majeed, Kalyanam Nagabhushanam, Sankaran Natarajan … (2016)

Background Bacillus coagulans MTCC 5856 has been marketed as a dietary ingredient, but its efficacy in diarrhea predominant irritable bowel syndrome (IBS) condition has not been clinically elucidated till date. Thus, a double blind placebo controlled multi-centered trial was planned to evaluate the safety and efficacy of B. coagulans MTCC 5856 in diarrhea predominant IBS patients. Methods Thirty six newly diagnosed diarrhea predominant IBS patients were enrolled in three clinical centres. Along with standard care of treatment, 18 patients in group one received placebo while in group two 18 patients received B. coagulans MTCC 5856 tablet containing 2 × 109 cfu/day as active for 90 days. Clinical symptoms of IBS were considered as primary end point measures and were evaluated through questionnaires. The visual analog scale (VAS) was used for abdominal pain. Physician’s global assessment and IBS quality of life were considered as secondary efficacy measures and were monitored through questionnaires. Results Laboratory parameters, anthropometric and vital signs were within the normal clinical range during the 90 days of supplementation in placebo and B. coagulans MTCC 5856 group. There was a significant decrease in the clinical symptoms like bloating, vomiting, diarrhea, abdominal pain and stool frequency in a patient group receiving B. coagulans MTCC 5856 when compared to placebo group (p < 0.01). Similarly, disease severity also decreased and the quality of life increased in the patient group receiving B. coagulans MTCC 5856 when compared to placebo group. Conclusions The study concluded that the B. coagulans MTCC 5856 at a dose of 2 × 109 cfu/day along with standard care of treatment was found to be safe and effective in diarrhea predominant IBS patients for 90 days of supplementation. Hence, B. coagulans MTCC 5856 could be a potential agent in the management of diarrhea predominant IBS patients.

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Author and article information

Journal

Journal ID (nlm-ta): Biosci Microbiota Food Health

Journal ID (iso-abbrev): Biosci Microbiota Food Health

Journal ID (publisher-id): BMFH

Title: Bioscience of Microbiota, Food and Health

Publisher: BMFH Press

ISSN (Print): 2186-6953

ISSN (Electronic): 2186-3342

Publication date (Electronic): 21 September 2019

Publication date (Print): 2020

Volume: 39

Issue: 1

Pages: 1-9

Affiliations

[1 ]Ichibiki Co., Ltd., Nagoya, Aichi 456-0018, Japan

[2 ]Department of Immunology, Medical Research Institute, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8510, Japan

[3 ]Department of Dermatology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8510, Japan

Author notes

*Corresponding author. Takahiro Adachi (E-mail: tadachi.imm@ 123456mri.tmd.ac.jp )

Article

Publisher ID: 19-012

DOI: 10.12938/bmfh.19-012

PMC ID: 6971416

SO-VID: b2ca2df7-e91d-4209-84a7-3e019a2d4232

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This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial No Derivatives (by-nc-nd) License. (CC-BY-NC-ND 4.0: https://creativecommons.org/licenses/by-nc-nd/4.0/)

Isolation of food-derived bacteria inducing interleukin-22 in B cells

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Role of Microbes in Soil Fertility and Human Health

Most cited references 17

IL-10 Family Cytokines IL-10 and IL-22: from Basic Science to Clinical Translation

The Interleukin-10 Family of Cytokines and Their Role in the CNS

Bacillus coagulans MTCC 5856 supplementation in the management of diarrhea predominant Irritable Bowel Syndrome: a double blind randomized placebo controlled pilot clinical study

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