Peptide YY: A Paneth cell antimicrobial peptide that maintains Candida gut commensalism

Author:

Pierre Joseph F.12ORCID,Peters Brian M.3ORCID,La Torre Diana1,Sidebottom Ashley M.1ORCID,Tao Yun1ORCID,Zhu Xiaorong1,Cham Candace M.1ORCID,Wang Ling1ORCID,Kambal Amal1,Harris Katharine G.14ORCID,Silva Julian F.1ORCID,Zaborina Olga5,Alverdy John C.5ORCID,Herzog Herbert6,Witchley Jessica78ORCID,Noble Suzanne M.7ORCID,Leone Vanessa A.19ORCID,Chang Eugene B.1ORCID

Affiliation:

1. Department of Medicine, University of Chicago, Chicago, IL, USA.

2. Department of Nutritional Sciences, University of Wisconsin-Madison, Madison, WI, USA.

3. Department of Clinical Pharmacy and Translational Science, University of Tennessee Health Science Center, Memphis, TN, USA.

4. Department of Biology, Franklin College, Franklin, IN, USA.

5. Department of Surgery, University of Chicago, Chicago, IL, USA.

6. Garvan Institute of Medical Research, Sydney, Australia.

7. Department of Microbiology and Immunology, School of Medicine, University of California San Francisco, San Francisco, CA, USA.

8. Department of Molecular and Cell Biology, Immunology and Molecular Medicine Division, University of California-Berkeley, CA, USA.

9. Department of Animal & Dairy Sciences, University of Wisconsin-Madison, Madison, WI, USA.

Abstract

The mammalian gut secretes a family of multifunctional peptides that affect appetite, intestinal secretions, and motility whereas others regulate the microbiota. We have found that peptide YY (PYY 1-36 ), but not endocrine PYY 3-36 , acts as an antimicrobial peptide (AMP) expressed by gut epithelial paneth cells (PC). PC-PYY is packaged into secretory granules and is secreted into and retained by surface mucus, which optimizes PC-PYY activity. Although PC-PYY shows some antibacterial activity, it displays selective antifungal activity against virulent Candida albicans hyphae—but not the yeast form. PC-PYY is a cationic molecule that interacts with the anionic surfaces of fungal hyphae to cause membrane disruption and transcriptional reprogramming that selects for the yeast phenotype. Hence, PC-PYY is an antifungal AMP that contributes to the maintenance of gut fungal commensalism.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3