Evidence map›Paper›PMID 17657598›Full record

ArticlePharmaceutical research2007

Poly (lactide-co-glycolide) microspheres in respirable sizes enhance an in vitro T cell response to recombinant Mycobacterium tuberculosis antigen 85B.

Dongmei Lu, Lucila Garcia-Contreras, Ding Xu, Sherry L Kurtz, Jian Liu, Miriam Braunstein, David N McMurray, Anthony J Hickey

Abstract read
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In one paragraph

Article in Pharmaceutical research, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
–field-weighted citation impact
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

17 citing papers in PubMed.

  1. Article
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  8. Article
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  10. Article
  11. Review
  12. Pharmaceutical aerosols for the treatment and prevention of tuberculosis.Frontiers in cellular and infection microbiology · 2012
    Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
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.

Dongmei LuMolecular Pharmaceutics, School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-7360, USA.
Lucila Garcia-Contreras
Ding Xu
Sherry L Kurtz
Jian Liu
Miriam Braunstein
David N McMurray
Anthony J Hickey

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 HL67221
6 · The paper itself

Abstract

purposeTo investigate the use of poly (lactide-co-glycolide) (PLGA) microparticles in respirable sizes as carriers for Antigen 85B (Ag85B), a secreted protein of Mycobacterium tuberculosis, with the ultimate goal of employing them in pulmonary delivery of tuberculosis vaccine. MATERIALS AND

methodsRecombinant Ag85B was expressed from two Escherichia coli strains and encapsulated by spray-drying in PLGA microspheres with/without adjuvants. These microspheres containing rAg85B were assessed for their ability to deliver antigen to macrophages for subsequent processing and presentation to the specific CD4 T-hybridoma cells DB-1. DB-1 cells recognize the Ag85B(97-112) epitope presented in the context of MHC class II and secrete IL-2 as the cytokine marker.

resultsMicrospheres suitable for aerosol delivery to the lungs (3.4-4.3 microm median diameter) and targeting alveolar macrophages were manufactured. THP-1 macrophage-like cells exposed with PLGA-rAg85B microspheres induced the DB-1 cells to produce IL-2 at a level that was two orders of magnitude larger than the response elicited by soluble rAg85B. This formulation demonstrated extended epitope presentation.

conclusionsPLGA microspheres in respirable sizes were effective in delivering rAg85B in an immunologically relevant manner to macrophages. These results are a foundation for further investigation into the potential use of PLGA particles for delivery of vaccines to prevent M. tuberculosis infection.

Indexed as

Drug CarriersImmunity, CellularMicrospheresAcyltransferasesAdministration, InhalationAerosolsAnimalsAntigen PresentationAntigens, BacterialBacterial ProteinsCD4-Positive T-LymphocytesCell LineChemistry, PharmaceuticalCloning, MolecularDelayed-Action PreparationsDrug CompoundingAcyltransferasesAerosolsantigen 85B, Mycobacterium tuberculosisAntigens, BacterialBacterial ProteinsDelayed-Action PreparationsDrug CarriersInterleukin-2Polyglactin 910Recombinant ProteinsTuberculosis Vaccines

Identifiers

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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.