Evidence map›Paper›PMID 22496777›Full record

ArticlePloS one2012

Biochemical characterization and evaluation of a Brugia malayi small heat shock protein as a vaccine against lymphatic filariasis.

Gajalakshmi Dakshinamoorthy, Abhilash Kumble Samykutty, Gnanasekar Munirathinam, Gangadhar Bhaurao Shinde, Thomas Nutman, Maryada Venkatarami Reddy, Ramaswamy Kalyanasundaram

Open access · goldAbstract readEvaluation Study
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
3.0field-weighted citation impact, top 9% 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

27 citing papers in PubMed, 47 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

7 authors at 5 institutions in 2 countries.

Gajalakshmi DakshinamoorthyDepartment of Biomedical Sciences, University of Illinois College of Medicine at Rockford, Rockford, Illinois, United States of America.
Abhilash Kumble Samykutty
Gnanasekar Munirathinam
Gangadhar Bhaurao Shinde
Thomas Nutman
Maryada Venkatarami Reddy
Ramaswamy Kalyanasundaram
Mahatma Gandhi Institute of Medical Sciences · INUniversity of Illinois Chicago, Rockford campus · USIllinois College · USNational Institutes of Health · USRashtrasant Tukadoji Maharaj Nagpur University · IN

Funding

Molecular Definition Of Filarial And Related Nonfilarial Genes And ProteinsZIAAI000512 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI NUTMAN, THOMAS · 2009 to 2025
$9.9M
MULTIVALENT VACCINE FOR LYMPHATIC FILARIASISR01AI064745 · NIAID · UNIVERSITY OF ILLINOIS AT CHICAGO · PI KALYANASUNDARAM, RAMASWAMY · 2007 to 2010
$1.5M
MULTIVALENT VACCINE FOR LYMPHATIC FILARIASISR56AI064745 · NIAID · UNIVERSITY OF ILLINOIS AT CHICAGO · PI KALYANASUNDARAM, RAMASWAMY · 2006 to 2006
$310k
NIAID NIH HHS R01 AI064745NIAID NIH HHS R56 AI064745
6 · The paper itself

Abstract

Filarial nematodes enjoy one of the longest life spans of any human pathogen due to effective immune evasion strategies developed by the parasite. Among the various immune evasion strategies exhibited by the parasite, Interleukin 10 (IL-10) productions and IL-10 mediated immune suppression has significant negative impact on the host immune system. Recently, we identified a small heat shock protein expressed by Brugia malayi (BmHsp12.6) that can bind to soluble human IL-10 receptor alpha (IL-10R) and activate IL-10 mediated effects in cell lines. In this study we show that the IL-10R binding region of BmHsp12.6 is localized to its N-terminal region. This region has significant sequence similarity to the receptor binding region of human IL-10. In vitro studies confirm that the N-terminal region of BmHsp12.6 (N-BmHsp12.6) has IL-10 like activity and the region containing the alpha crystalline domain and C-terminus of BmHsp12.6 (BmHsp12.6αc) has no IL-10 like activity. However, BmHsp12.6αc contains B cell, T cell and CTL epitopes. Members of the sHSP families are excellent vaccine candidates. Evaluation of sera samples from putatively immune endemic normal (EN) subjects showed IgG1 and IgG3 antibodies against BmHsp12.6αc and these antibodies were involved in the ADCC mediated protection. Subsequent vaccination trials with BmHsp12.6αc in a mouse model using a heterologous prime boost approach showed that 83% protection can be achieved against B. malayi L3 challenge. Results presented in this study thus show that the N-BmHsp12.6 subunit of BmHsp12.6 has immunoregulatory function, whereas, the BmHsp12.6αc subunit of BmHsp12.6 has significant vaccine potential.

Indexed as

Amino Acid SequenceAnimalsAntibodies, HelminthAntibody-Dependent Cell CytotoxicityAntigens, HelminthBrugia malayiCell ProliferationCytokinesElephantiasis, FilarialHeat-Shock Proteins, SmallHumansImmunoglobulin GInterleukin-10MaleMast CellsMiceAntibodies, HelminthAntigens, HelminthCytokinesHeat-Shock Proteins, SmallImmunoglobulin GInterleukin-10Peptide FragmentsReceptors, Interleukin-10Recombinant ProteinsVaccines, DNA

Identifiers

PMID22496777
PMCPMC3320633
OpenAlexW2067415554

What OpenQuestion holds

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LicenceCC BY
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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.