Evidence map›Paper›PMID 20051036›Full record

ArticlePlant biotechnology journal2010

Chloroplast-derived vaccine antigens confer dual immunity against cholera and malaria by oral or injectable delivery.

Abdoreza Davoodi-Semiromi, Melissa Schreiber, Samson Nalapalli, Dheeraj Verma, Nameirakpam D Singh, Robert K Banks, Debopam Chakrabarti, Henry Daniell

Open access · greenAbstract read
In one paragraph

Article in Plant biotechnology journal, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 69 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
69citing papers in PubMed, 1 pooled it
17.7field-weighted citation impact, top 1% 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

69 citing papers in PubMed, 1 synthesis or guideline pooled it, 173 citations in OpenAlex.

  1. Pooled it
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  13. Plant Platforms for Efficient Heterologous Protein Production.Biotechnology and bioprocess engineering : BBE · 2021
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9 more citing papers are in PubMed but not listed here.

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 1 institution in 1 country.

Abdoreza Davoodi-SemiromiDepartment of Molecular Biology and Microbiology, College of Medicine, University of Central Florida, Orlando, FL 32816-2364, USA.
Melissa Schreiber
Samson Nalapalli
Dheeraj Verma
Nameirakpam D Singh
Robert K Banks
Debopam Chakrabarti
Henry Daniell
University of Central Florida · US

Funding

Expression of Human Therapeutic Proteins in Transgenic Tobacco ChloroplastsR01GM063879 · NIGMS · UNIVERSITY OF CENTRAL FLORIDA · PI DANIELL, HENRY · 2002 to 2010
$2.0M
NIGMS NIH HHS R01 GM063879NIGMS NIH HHS R01 GM 63879-08
6 · The paper itself

Abstract

Cholera and malaria are major diseases causing high mortality. The only licensed cholera vaccine is expensive; immunity is lost in children within 3 years and adults are not fully protected. No vaccine is yet available for malaria. Therefore, in this study, the cholera toxin-B subunit (CTB) of Vibrio cholerae fused to malarial vaccine antigens apical membrane antigen-1 (AMA1) and merozoite surface protein-1 (MSP1) was expressed in lettuce and tobacco chloroplasts. Southern blot analysis confirmed homoplasmy and stable integration of transgenes. CTB-AMA1 and CTB-MSP1 fusion proteins accumulated up to 13.17% and 10.11% (total soluble protein, TSP) in tobacco and up to 7.3% and 6.1% (TSP) in lettuce, respectively. Nine groups of mice (n = 10/group) were immunized subcutaneously (SQV) or orally (ORV) with purified antigens or transplastomic tobacco leaves. Significant levels of antigen-specific antibody titres of immunized mice completely inhibited proliferation of the malarial parasite and cross-reacted with the native parasite proteins in immunoblots and immunofluorescence studies. Protection against cholera toxin challenge in both ORV (100%) and SQV (89%) mice correlated with CTB-specific titres of intestinal, serum IgA and IgG1 in ORV and only IgG1 in SQV mice, but no other immunoglobulin. Increasing numbers of interleukin-10(+) T cell but not Foxp3(+) regulatory T cells, suppression of interferon-gamma and absence of interleukin-17 were observed in protected mice, suggesting that immunity is conferred via the Tr1/Th2 immune response. Dual immunity against two major infectious diseases provided by chloroplast-derived vaccine antigens for long-term (>300 days, 50% of mouse life span) offers a realistic platform for low cost vaccines and insight into mucosal and systemic immunity.

Indexed as

Administration, OralAnimalsAntibodies, BacterialAntibodies, ProtozoanAntigens, ProtozoanCD4-Positive T-LymphocytesChloroplastsCholeraCholera ToxinCholera VaccinesCross ReactionsFemaleImmunity, HumoralImmunoglobulin AImmunoglobulin GInjections, SubcutaneousAntibodies, BacterialAntibodies, ProtozoanAntigens, ProtozoanCholera ToxinCholera VaccinesImmunoglobulin AImmunoglobulin GMalaria VaccinesMerozoite Surface Protein 1Recombinant Fusion Proteins

Identifiers

PMID20051036
PMCPMC2807910
OpenAlexW2156155448

What OpenQuestion holds

Textmetadata
LicenceTDM
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.