Evidence map›Paper›PMID 20422340›Full record

ArticleThe AAPS journal2010

Pulmonary immunization using antigen 85-B polymeric microparticles to boost tuberculosis immunity.

Dongmei Lu, Lucila Garcia-Contreras, Pavan Muttil, Danielle Padilla, Ding Xu, Jian Liu, Miriam Braunstein, David N McMurray, Anthony James Hickey

Open access · bronzeAbstract read
In one paragraph

Article in The AAPS journal, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
2.1field-weighted citation impact, top 14% 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

23 citing papers in PubMed, 55 citations in OpenAlex.

  1. Review
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  6. Emerging trends in inhaled drug delivery.Advanced drug delivery reviews · 2020
    Review
  7. Article
  8. Article
  9. Article
  10. Review
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  12. Intranasal immunization with dry powder vaccines.European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V · 2018
    Review
  13. Review
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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

9 authors at 2 institutions in 1 country.

Dongmei LuMolecular Pharmaceutics, School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-7571, USA.
Lucila Garcia-Contreras
Pavan Muttil
Danielle Padilla
Ding Xu
Jian Liu
Miriam Braunstein
David N McMurray
Anthony James Hickey
University of North Carolina at Chapel Hill · USTexas A&M University System · US

Funding

MECHANISMS OF RESPONSE TO PULMONARY VACCINATIONR01HL067221 · NHLBI · UNIVERSITY OF NORTH CAROLINA CHAPEL HILL · PI HICKEY, ANTHONY JAMES · 2002 to 2005
$1.0M
NHLBI NIH HHS HL67221NHLBI NIH HHS R01 HL067221
6 · The paper itself

Abstract

This study aims to evaluate immunization with polymeric microparticles containing recombinant antigen 85B (rAg85B) delivered directly to the lungs to protect against tuberculosis. rAg85B was expressed in Escherichia coli and encapsulated in poly(lactic-co-glycolic acid) microparticles (P-rAg85B). These were delivered as dry powders to the lungs of guinea pigs in single or multiple doses of homologous and heterologous antigens. Bacille Calmette-Guérin (BCG) delivered subcutaneously was employed as the positive control and as part of immunization strategies. Immunized animals were challenged with a low-dose aerosol of Mycobacterium tuberculosis (MTB) H37Rv to assess the extent of protection measured as reduction in bacterial burden (CFU) in the lungs and spleens of guinea pigs. Histopathological examination and morphometric analysis of these tissues were also performed. The heterologous strategy of BCG prime-P-rAg85B aerosol boosts appeared to enhance protection from bacterial infection, as indicated by a reduction in CFU in both the lungs and spleens compared with untreated controls. Although the CFU data were not statistically different from the BCG and BCG-BCG groups, the histopathological and morphometric analyses indicated the positive effect of BCG-P-rAg85B in terms of differences in area of tissue affected and number and size of granulomas observed in tissues. P-rAg85B microparticles appeared to be effective in boosting a primary BCG immunization against MTB infection, as indicated by histopathology and morphometric analysis. These encouraging observations are relevant to boosting adults previously immunized with BCG or exposed to MTB, commonly the case in the developing world, and should be followed by further assessment of an appropriate immunization protocol for maximum protection.

Indexed as

LungMicrospheresAerosolsAnimalsAntigens, BacterialEnzyme-Linked Immunosorbent AssayGuinea PigsHypersensitivity, DelayedLactic AcidMycobacterium tuberculosisPolyglycolic AcidPolylactic Acid-Polyglycolic Acid CopolymerRecombinant ProteinsTuberculosisAerosolsAntigens, BacterialLactic AcidPolyglycolic AcidPolylactic Acid-Polyglycolic Acid CopolymerRecombinant Proteins

Identifiers

PMID20422340
PMCPMC2895436
OpenAlexW2068538222

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.