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Learn More About Microbiome In Medicine

Dr. Joël Doré – How Microbiome Research Is Transforming Medicine?

To mark World Microbiome Day 2025, we sat down with Joël Doré, one of the world’s leading microbiome experts. He shares why the microbiome is more crucial than ever, how to care for it daily, and what the future of microbiome-based medicine could look like. From everyday tips to breakthrough therapies, discover why the gut microbiome is becoming a cornerstone of modern health.

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No longer confined to the lab, the microbiome is now recognized as central to human health.

Joël Doré
Research Director at INRAE, Scientific advisor and co-founder of MaaT Pharma

👉 Read The Full Interview 📄

Microbiome & Immune System

The critical role of the gut microbiome in our immune system

TEDxAgroParisTech (French Only)

A Plea for the Microbial Human – Joël Doré

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Acting Chief Scientific Officer

Sheri Simmons

Sheri Simmons, Ph.D., is Acting Chief Scientific Officer at MaaT Pharma. Sheri brings extensive experience in biotechnology, particularly in the microbiome field, having held scientific leadership positions at Seres Therapeutics, Johnson & Johnson’s Microbiome Solutions team, and most recently at Seed Health, a leading probiotics company. In her role, she strengthens the Company’s scientific leadership, overseeing preclinical research, AI/data initiatives, and supporting efforts toward the Marketing Authorization Application of Xervyteg® in aGvHD.

Sheri holds a PhD in Biological Oceanography from the Massachusetts Institute of Technology (MIT) and completed an A.B. in Ecology & Evolutionary Biology at Princeton University, graduating summa cum laude and as a Phi Beta Kappa member, receiving one of six awards for the best senior thesis in the sciences. Sheri holds a PhD in Biological Oceanography from the Massachusetts Institute of Technology (MIT) and completed an A.B. in Ecology & Evolutionary Biology at Princeton University, graduating summa cum laude and as a Phi Beta Kappa member, receiving one of six awards for the best senior thesis in the sciences.

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CEO and co-founder

Hervé Affagard

Hervé Affagard is the CEO and co-founder of MaaT Pharma. For the past 15 years, Hervé has been an intra/entrepreneur in the healthcare industry, after starting his career in IT in the steel industry. In late 2014, Hervé co-founded the company alongside Dr. Joël Doré, author of nearly 500 publications, and
one of the world’s most cited authors in the microbiome sphere today, after a professional career that spanned multiple industries. Hervé has led MaaT Pharma’s development from its early concept in 2013 and has been at the forefront of the development of the microbiome healthcare ecosystem in France and Europe. In January 2022, Hervé has been elected President of Allliance Promotion Microbiote, an organization founded in 2021 to support the microbiome sector development in France.

Engineer, MBA

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