Evidence map›Paper›PMID 39791912›Full record

ArticleJournal of virology2025

2'-Fucosyllactose inhibits human norovirus replication in human intestinal enteroids.

Ketki Patil, B Vijayalakshmi Ayyar, Nicole M Hayes, Frederick H Neill, Lars Bode, Mary K Estes, Robert L Atmar, Sasirekha Ramani

Abstract read
In one paragraph

Article in Journal of virology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

7 citing papers in PubMed.

  1. Review
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors.

Ketki PatilDepartment of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, Texas, USA.
B Vijayalakshmi AyyarDepartment of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, Texas, USA.
Nicole M HayesDepartment of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, Texas, USA.
Frederick H NeillDepartment of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, Texas, USA.
Lars BodeDepartment of Pediatrics, Larsson-Rosenquist Foundation Mother-Milk-Infant Center of Research Excellence (MOMI CORE), and the Human Milk Institute (HMI), University of California San Diego, La Jolla, California, USA.
Mary K EstesDepartment of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, Texas, USA.ORCID 0000-0002-4813-4249
Robert L AtmarDepartment of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, Texas, USA.ORCID 0000-0001-9989-6772
Sasirekha RamaniDepartment of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, Texas, USA.ORCID 0000-0001-5631-8534

Funding

VirologyP30AI036214 · NIAID · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI SUSAN JANET LITTLE · 1994 to 2026
$78.4M
X-ray Crystallographic Studies on CalicivirusesP01AI057788 · NIAID · BAYLOR COLLEGE OF MEDICINE · PI PRASAD, BIDADI VENKATARAM · 2004 to 2024
$34.4M
Tissue Analysis & Molecular Imaging CoreP30DK056338 · NIDDK · BAYLOR COLLEGE OF MEDICINE · PI Hashem B El-Serag · 2001 to 2026
$28.3M
Confocal Microscope (Zeiss LSM980 with Airyscan 2)S10OD028480 · OD · BAYLOR COLLEGE OF MEDICINE · PI ESTES, MARY KOLB · 2020 to 2020
$599k
HHS | National Institutes of Health (NIH) P01 AI 057788NIAID NIH HHS P01 AI057788NIAID NIH HHS P30 AI036214NIDDK NIH HHS P30 DK056338NIH HHS S10 OD028480ODCDC CDC HHS S10 OD028480
6 · The paper itself

Abstract

Human noroviruses (HuNoVs) are the leading cause of acute gastroenteritis worldwide. Currently, there are no targeted antivirals for the treatment of HuNoV infection. Histo-blood group antigens (HBGAs) on the intestinal epithelium are cellular attachment factors for HuNoVs; molecules that block the binding of HuNoVs to HBGAs thus have the potential to be developed as antivirals. Human milk oligosaccharides (HMOs) are glycans in human milk with structures analogous to HBGAs. HMOs have been shown to act as decoy receptors to prevent the attachment of multiple enteric pathogens to host cells. Previous X-ray crystallography studies have demonstrated the binding of HMO 2'-fucosyllactose (2'FL) in the same pocket as HBGAs for some HuNoV strains. We evaluated the effect of 2'FL on the replication of a globally dominant GII.4 Sydney [P16] HuNoV strain using human intestinal enteroids (HIEs) from adults and children. A significant reduction in GII.4 Sydney [P16] replication was seen in duodenal and jejunal HIEs from multiple adult donors, all segments of the small intestine from an adult organ donor, and in two pediatric duodenal HIEs. However, 2'FL did not inhibit HuNoV replication in two infant jejunal HIEs that had significantly lower expression of α1-2-fucosylated glycans. 2'FL can be synthesized in large scale, and safety and tolerance have been assessed previously. Our data suggest that 2'FL has the potential to be developed as a therapeutic for HuNoV gastroenteritis. IMPORTANCE: Human noroviruses infect the gastrointestinal tract and are a leading cause of acute gastroenteritis worldwide. Common symptoms of norovirus include diarrhea, vomiting, and stomach cramps. Virus shedding and symptoms are prolonged and debilitating in immunocompromised patients. Currently, there are no approved vaccines or targeted antivirals for treating human norovirus infection. Human intestinal enteroids derived from intestinal stem cells allow the successful replication of norovirus in the laboratory and can be used as a physiologically relevant model system to evaluate antivirals. We discovered that 2'-fucosyllactose (2'FL), an oligosaccharide naturally occurring in human milk, inhibits GII.4 norovirus replication in HIEs from multiple donors and thus has the potential to be developed as a therapeutic for human norovirus. These findings have high translational potential since 2'FL from several manufacturers has a "generally recognized as safe" status and can be synthesized on a large scale for immediate application.

Indexed as

Antiviral AgentsNorovirusOrganoidsTrisaccharidesVirus ReplicationAdultBlood Group AntigensCaliciviridae InfectionsChildGastroenteritisHumansIntestinal MucosaMilk, Human2'-fucosyllactoseAntiviral AgentsBlood Group AntigensTrisaccharides2’-fucosyllactoseantiviralenteroidshuman milk oligosaccharidenorovirustherapeutic

Identifiers

PMID39791912
PMCPMC11853015

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.