Evidence map›Paper›PMID 9916095›Full record

ArticleInfection and immunity1999

Functional and immunogenic characterization of two cloned regions of Streptococcus mutans glucosyltransferase I.

C Jespersgaard, G Hajishengallis, T E Greenway, D J Smith, M W Russell, S M Michalek

Open access · bronzeAbstract read
In one paragraph

Article in Infection and immunity, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
4.8field-weighted citation impact, top 4% 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

14 citing papers in PubMed, 40 citations in OpenAlex.

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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

6 authors at 2 institutions in 1 country.

C JespersgaardDepartments of Microbiology, University of Alabama at Birmingham, Birmingham, Alabama 35294, USA.
G Hajishengallis
T E Greenway
D J Smith
M W Russell
S M Michalek
Novant Health Forsyth Medical Center · USUniversity of Alabama at Birmingham · US

Funding

CHILDHOOD VACCINES AND DENTAL CARIES IMMUNITYR37DE006153 · NIDCR · FORSYTH INSTITUTE · PI SMITH, DANIEL JAMES · 1998 to 2007
$3.9M
Genetically Engineered Oral Vaccines &Caries ImmunityR01DE009081 · NIDCR · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI MICHALEK, SUZANNE M. · 1990 to 2012
$3.2M
SYNTHETIC PEPTIDE VACCINES FOR DENTAL CARIESR01DE004733 · NIDCR · FORSYTH INSTITUTE · PI TAUBMAN, MARTIN A · 1985 to 2005
$3.0M
ANTIGENS OF STREPTOCOCCUS MUTANS IN CARIES IMMUNITYR37DE006746 · NIDCR · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI RUSSELL, MICHAEL W · 1999 to 2008
$2.4M
Passive Immunotherapy for Pediatric Mutans Streptococcal InfectionsR56DE004733 · NIDCR · ADA FORSYTH INSTITUTE, INC. · PI TAUBMAN, MARTIN A · 2007 to 2009
$2.1M
PROTEIN ANTIGENS OF STREP MUTANS IN CARIES IMMUNITYR01DE006746 · NIDCR · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI RUSSELL, MICHAEL W · 1985 to 1998
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NIDCR NIH HHS DE04733NIDCR NIH HHS DE06746NIDCR NIH HHS DE09081NIDCR NIH HHS R01 DE004733NIDCR NIH HHS R01 DE009081NIDCR NIH HHS R37 DE006153NIDCR NIH HHS R37 DE006746NIDCR NIH HHS R56 DE004733
6 · The paper itself

Abstract

Glucosyltransferase (GTF) enzymes of mutans streptococci are considered virulence factors due to their ability to synthesize adhesive glucans, which facilitate cell-to-cell adherence and accumulation. In this study we report the cloning, expression, and characterization of the catalytic (CAT) and glucan-binding (GLU) domains of S. mutans GTF-I encoded by gtfB. The CAT and GLU polypeptides represent amino acid residues 253 to 628 and 1183 to 1473, respectively, of S. mutans GTF-I. Antibodies to recombinant CAT and GLU were generated in rabbits and purified by affinity chromatography. Purified anti-CAT antibodies significantly inhibited water-insoluble glucan synthesis by S. mutans and S. sobrinus GTFs (P < 0.0001 and P < 0.05, respectively). The purified anti-GLU antibodies significantly inhibited both water-insoluble and water-soluble glucan synthesis by S. mutans GTFs (P < 0.0001 and P < 0.05, respectively). These results demonstrate that anti-CAT and anti-GLU antibodies are capable of inhibiting a variety of GTF activities. Since antibodies to S. mutans in saliva are implicated in protection against disease, we next assessed the ability of CAT and GLU polypeptides to induce mucosal antibody responses in mice. Intranasal (i.n.) immunization of mice with CAT showed significantly (P < 0.005) elevated levels of specific immunoglobulin G (IgG) antibody activity in serum and specific IgA antibody activity in serum, saliva, vaginal washes, and fecal samples. GLU immunized animals showed significantly (P < 0.005) elevated levels of specific IgA antibody activity in serum and vaginal secretions. Taken together, these results demonstrate that the recombinant CAT and GLU polypeptides are effective in inducing both mucosal and systemic immune responses. The ability of these polypeptides to induce a mucosal IgA immune response in mice after i.n. immunization supports their use as subunit vaccine candidates in the development of an anticaries vaccine.

Indexed as

Bacterial ProteinsGlucosyltransferasesAnimalsAntibodies, BacterialCatalytic DomainGene ExpressionGlucansMiceMice, Inbred BALB CProteinsRabbitsRecombinant Fusion ProteinsStreptococcus mutansAntibodies, BacterialBacterial ProteinsGlucansglucosyltransferase IGlucosyltransferasesGTF-I protein, StreptococcusProteinsRecombinant Fusion Proteins

Identifiers

PMID9916095
PMCPMC96391
OpenAlexW2263608909

What OpenQuestion holds

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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.