Scientists Uncover Naturally Occurring Intestine Molecule That Can Stop and Deal with the Flu theinsiderinsight

A examine reveals that indole-3-propionic acid (IPA), a gut-derived molecule, can probably deal with influenza by reducing viral exercise and irritation in mice, with human trials anticipated to substantiate these outcomes.

Researchers on the State College of Campinas in Brazil and the Pasteur Institute in Lille, France, carried out experiments on mice and found that administering a particular substance decreased each viral load and irritation in animals contaminated with the influenza virus,

In keeping with a examine printed within the journal Intestine Microbesresearchers from the State College of Campinas (UNICAMP) in São Paulo, Brazil, and Pasteur Institut in Lille, France, have discovered {that a} naturally occurring intestine molecule can stop and even deal with influenza.

Experiments with mice confirmed a fall in ranges of the molecule indole-3-propionic acid (IPA) throughout an infection by influenza virus H3N2.

The contaminated animals' IPA was supplemented with an artificial model of the molecule, after which viral load and lung irritation have been discovered to have decreased.

“These outcomes are promising and counsel that IPA could in future be used to assist stop or deal with infections by the influenza virus, which causes main epidemics. Nonetheless, extra analysis is required to substantiate the findings in people and to know how IPA works,” stated Marco Vinolo, co-last writer of the article and a professor at UNICAMP's Institute of Biology (IB).

the examine was a part of the challenge “Investigation of the molecular mechanisms involved in the interaction between microbiota-derived metabolites and host cells during inflammation”which is supported by FAPESP and for which Vinolo is the principal investigator.

The above outcomes adopted a sequence of experiments with mice carried out in France and led by Pasteur-Lille's François Trottein. The information was later analyzed at UNICAMP utilizing bioinformatics instruments, and the outcomes of this evaluation in flip impressed additional experiments with animals at Pasteur.

“We used three layers of knowledge. The primary was obtained by metagenomics, exhibiting which micro organism have been altered within the intestine microbiota after seven days and 14 days of an infection. all of the DNA of those micro organism was analyzed, whereas this kind of examine usually analyzes solely a chunk of 1 gene that identifies the micro organism. Our evaluation confirmed not solely the Species of micro organism but additionally the genes most modern and their respective features,” stated Vinicius de Rezende Rodovalho, second writer of the article. The examine was carried out whereas he was a postdoctoral researcher at IB-UNICAMP.

The opposite layers of knowledge have been obtained by metabolomics, detecting metabolites secreted by the intestine microbiota and medical markers of the illness reminiscent of viral load and irritation.

“We analyzed these datasets in an built-in method, constructing a community of correlations that pointed to an essential function for IPA. In additional experiments carried out on this foundation, we supplemented the animals with an artificial model of the molecule produced within the laboratory and noticed that IPA supplementation decreased viral load and irritation. The findings counsel that IPA has important potential as a biomarker of influenza resistance and a goal for microbiome-based interventions to deal with flu,” Vinolo stated.


IPA is produced by intestine micro organism once they metabolize tryptophan, a vital amino acid current in complete grains reminiscent of soybeans, wheat, corn, barley, rye, oats, and sunflower seeds, in addition to animal merchandise reminiscent of fish, beef, pork, poultry, and dairy.

Analysis by different teams has already proven that IPA supplementation improves metabolic problems, regulating blood sugar, rising Insulin sensitivity, and inhibiting lipid synthesis and inflammatory components within the liver.

Different research have discovered proof of the function performed by tryptophan and IPA in power steadiness and the cardiovascular system, in addition to their potential use to assist stop irritation, weight problems, diabetes, most cancers, hypertension, neurodegenerative illnesses, and osteoporosis.

In gentle of its potential to forestall and fight flu, the researchers have filed with the European Union for a patent on this use of IPA supplementation. Additional research resulting in medical trials are deliberate.

“We're wanting on the function of IPA throughout an infection by SARS-CoV-2the virus that causes COVID-19and the outcomes have thus far been related. We additionally wish to learn the way it features throughout bacterial infections. Few research have been accomplished on the hyperlink between intestine microbiota and systemic resistance to antibiotics, and IPA's involvement on this connection is also a fruitful line of analysis,” Rodovalho stated.

Reference: “Shotgun metagenomics and systemic focused metabolomics spotlight indole-3-propionic acid as a protecting intestine microbial metabolite in opposition to influenza an infection” by Séverine Heumel, Vinícius de Rezende Rodovalho, Charlotte Urien, Florian Specque, Patrícia Brito Rodrigues, Cyril Robil, Lou Delval, Valentin Sencio, Amandine Descat, Lucie Deruyter, Stéphanie Ferreira, Marina Gomes Machado, Adeline Barthelemy, Fabiola Silva Angulo, Joel. T Haas, Jean François Goosens, Isabelle Wolowczuk, Corinne Grangette, Yves Rouillé, Ghjuvan Grimaud, Marie Lenski, Benjamin Hennart, Marco Aurélio Ramirez Vinolo and François Trottein, 6 March 2024, Intestine Microbes,
DOI: 10.1080/19490976.2024.2325067

FAPESP additionally supported the examine by awarding a PhD scholarship to co-author Patrícia Brito Rodrigues, and funding her analysis internship at Pasteur-Lille.

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