Evidence map›Paper›PMID 12829836›Full record

ArticleJournal of virology2003

The viral sigma1 protein and glycoconjugates containing alpha2-3-linked sialic acid are involved in type 1 reovirus adherence to M cell apical surfaces.

Anna Helander, Katherine J Silvey, Nicholas J Mantis, Amy B Hutchings, Kartik Chandran, William T Lucas, Max L Nibert, Marian R Neutra

Open access · greenAbstract read
In one paragraph

Article in Journal of virology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers.

0numbers the graph read from it
0cells of the map it votes in
49citing papers in PubMed
4.6field-weighted citation impact, top 5% of its field
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

49 citing papers in PubMed, 101 citations in OpenAlex.

  1. A single mutation in an enteric virus alters tropism and sensitivity to microbiota.Proceedings of the National Academy of Sciences of the United States of America · 2025
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  15. Article
  16. Sialic Acid Receptors of Viruses.Topics in current chemistry · 2015
    Review
  17. Article
  18. Article
  19. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 3 institutions in 3 countries.

Anna HelanderGI Cell Biology Laboratory, Enders 1220, Children's Hospital and Department of Pediatrics, Harvard Medical School, 300 Longwood Avenue, Boston, MA 02115, USA.
Katherine J Silvey
Nicholas J Mantis
Amy B Hutchings
Kartik Chandran
William T Lucas
Max L Nibert
Marian R Neutra
Children's Research Hospital · JPHarvard University · USChildren's Hospital · TN

Funding

STRUCTURE-FUNCTION RELATIONSHIPS IN THE ALIMENTARY TRACTP30DK034854 · NIDDK · HARVARD UNIVERSITY (MEDICAL SCHOOL) · PI WAYNE I LENCER · 1986 to 2026
$32.4M
REOVIRUS OUTER-CAPSID ASSEMBLY &FUNCTIONS IN CELL ENTRYR01AI046440 · NIAID · HARVARD UNIVERSITY (MEDICAL SCHOOL) · PI NIBERT, MAX L. · 2001 to 2005
$1.7M
TRANSPORT OF PROTEIN IN NEONATAL ILEUM AND PEYER'S PATCHR01HD017557 · NICHD · HARVARD UNIVERSITY (MEDICAL SCHOOL) · PI NEUTRA, MARIAN R. · 1985 to 2006
$1.7M
TRANSPORT OF PROTEIN IN NEONATAL ILEUM &PEYER'S PATCHESR37HD017557 · NICHD · HARVARD UNIVERSITY (MEDICAL SCHOOL) · PI NEUTRA, MARIAN R. · 1986 to 1995
–
NIAID NIH HHS AI 46440NIAID NIH HHS R01 AI046440NICHD NIH HHS HD 17557NICHD NIH HHS R01 HD017557NIDDK NIH HHS DK 34854NIDDK NIH HHS P30 DK034854
6 · The paper itself

Abstract

Type 1 reoviruses invade the intestinal mucosa of mice by adhering selectively to M cells in the follicle-associated epithelium and then exploiting M cell transport activity. The purpose of this study was to identify the apical cell membrane component and viral protein that mediate the M cell adherence of these viruses. Virions and infectious subviral particles of reovirus type 1 Lang (T1L) adhered to rabbit M cells in Peyer's patch mucosal explants and to tissue sections in an overlay assay. Viral adherence was abolished by pretreatment of sections with periodate and in the presence of excess sialic acid or lectins MAL-I and MAL-II (which recognize complex oligosaccharides containing sialic acid linked alpha2-3 to galactose). The binding of T1L particles to polarized human intestinal (Caco-2(BBe)) cell monolayers was correlated with the presence of MAL-I and MAL-II binding sites, blocked by excess MAL-I and -II, and abolished by neuraminidase treatment. Other type 1 reovirus isolates exhibited MAL-II-sensitive binding to rabbit M cells and polarized Caco-2(BBe) cells, but type 2 or type 3 isolates including type 3 Dearing (T3D) did not. In assays using T1L-T3D reassortants and recoated viral cores containing T1L, T3D, or no sigma1 protein, MAL-II-sensitive binding to rabbit M cells and polarized Caco-2(BBe) cells was consistently associated with the T1L sigma1. MAL-II-recognized oligosaccharide epitopes are not restricted to M cells in vivo, but MAL-II immobilized on virus-sized microparticles bound only to the follicle-associated epithelium and M cells. The results suggest that selective binding of type 1 reoviruses to M cells in vivo involves interaction of the type 1 sigma1 protein with glycoconjugates containing alpha2-3-linked sialic acid that are accessible to viral particles only on M cell apical surfaces.

Indexed as

Membrane FusionAnimalsBinding SitesCaco-2 CellsCapsid ProteinsCell MembraneCell PolarityCells, CulturedFemaleGlycoconjugatesHumansIntestinal MucosaMiceMice, Inbred BALB COrthoreovirus, MammalianPeyer's PatchesCapsid ProteinsGlycoconjugatesSialic Acidssigma 1 protein, reovirus

Identifiers

PMID12829836
PMCPMC161912
OpenAlexW2150918209

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.