ArticlePharmaceutical research2008
Stimulation of phagocytic activity of alveolar macrophages toward artificial microspheres by infection with mycobacteria.
Article in Pharmaceutical research, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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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.
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0 citing papers in PubMed, 17 citations in OpenAlex.
No citing paper in PubMed yet.
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Authors and funding
7 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeThe purpose of this study is to know the effect of uptake of mycobacteria on the phagocytic activity of alveolar macrophage (Mphi) cells toward poly(lactic-co-glycolic) acid (PLGA) microspheres (MS) loaded with the anti-tuberculosis agent rifampicin (RFP-PLGA MS). MATERIALS AND
methodsBiological functions such as phagocytic activity toward PLGA MS loaded with fluorescent coumarin (cPLGA MS) and toward polystyrene latex MS (PSL MS), and generation of tumor necrosis factor-alpha (TNF-alpha) and nitric oxide (NO) were examined using alveolar Mphi cell NR8383 after they had phagocytosed Mycobacterium bovis Calmette-Guérin (BCG), heat-killed BCG (h-kBCG) or Escherichia coli.
resultsThe ingestion of BCG, h-kBCG, and E. coli did not affect the viability of the Mphi cells within 2 days. The phagocytosis caused generation of TNF-alpha and NO, being more significant with E. coli than with both types of BCGs. The phagocytosis of both types of BCGs stimulated the phagocytic uptake of cPLGA and PSL MS's, which took place prior to the generation of TNF-alpha or NO, but that of E. coli suppressed the uptake of both MS's.
conclusionMycobacterial infection stimulated the phagocytic uptake toward cPLGA MS. These results suggest that RFP-PLGA MS is favorable for overcoming tuberculosis.
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