Abstract
Iron-saturated transferrin did not reverse the intracellular killing or inhibition of Toxoplasma gondii, Chlamydia psittaci, or Leishmania donovani by gamma interferon-activated human macrophages. Deferoxamine, an iron chelator, also did not impair replication within unstimulated macrophages. Limiting the availability of intracellular iron is an unlikely mechanism in human macrophage activity against these three diverse pathogens.
Full text
PDF


Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Byrd T. F., Horwitz M. A. Chloroquine inhibits the intracellular multiplication of Legionella pneumophila by limiting the availability of iron. A potential new mechanism for the therapeutic effect of chloroquine against intracellular pathogens. J Clin Invest. 1991 Jul;88(1):351–357. doi: 10.1172/JCI115301. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Byrd T. F., Horwitz M. A. Interferon gamma-activated human monocytes downregulate transferrin receptors and inhibit the intracellular multiplication of Legionella pneumophila by limiting the availability of iron. J Clin Invest. 1989 May;83(5):1457–1465. doi: 10.1172/JCI114038. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Cameron M. L., Granger D. L., Weinberg J. B., Kozumbo W. J., Koren H. S. Human alveolar and peritoneal macrophages mediate fungistasis independently of L-arginine oxidation to nitrite or nitrate. Am Rev Respir Dis. 1990 Dec;142(6 Pt 1):1313–1319. doi: 10.1164/ajrccm/142.6_Pt_1.1313. [DOI] [PubMed] [Google Scholar]
- Denis M. Tumor necrosis factor and granulocyte macrophage-colony stimulating factor stimulate human macrophages to restrict growth of virulent Mycobacterium avium and to kill avirulent M. avium: killing effector mechanism depends on the generation of reactive nitrogen intermediates. J Leukoc Biol. 1991 Apr;49(4):380–387. doi: 10.1002/jlb.49.4.380. [DOI] [PubMed] [Google Scholar]
- Hamilton T. A., Gray P. W., Adams D. O. Expression of the transferrin receptor on murine peritoneal macrophages is modulated by in vitro treatment with interferon gamma. Cell Immunol. 1984 Dec;89(2):478–488. doi: 10.1016/0008-8749(84)90348-4. [DOI] [PubMed] [Google Scholar]
- James S. L., Cook K. W., Lazdins J. K. Activation of human monocyte-derived macrophages to kill schistosomula of Schistosoma mansoni in vitro. J Immunol. 1990 Oct 15;145(8):2686–2690. [PubMed] [Google Scholar]
- James S. L., Glaven J. Macrophage cytotoxicity against schistosomula of Schistosoma mansoni involves arginine-dependent production of reactive nitrogen intermediates. J Immunol. 1989 Dec 15;143(12):4208–4212. [PubMed] [Google Scholar]
- Lane T. E., Wu-Hsieh B. A., Howard D. H. Iron limitation and the gamma interferon-mediated antihistoplasma state of murine macrophages. Infect Immun. 1991 Jul;59(7):2274–2278. doi: 10.1128/iai.59.7.2274-2278.1991. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Loo V. G., Lalonde R. G. Role of iron in intracellular growth of Trypanosoma cruzi. Infect Immun. 1984 Sep;45(3):726–730. doi: 10.1128/iai.45.3.726-730.1984. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Mauël J., Ransijn A., Buchmüller-Rouiller Y. Killing of Leishmania parasites in activated murine macrophages is based on an L-arginine-dependent process that produces nitrogen derivatives. J Leukoc Biol. 1991 Jan;49(1):73–82. doi: 10.1002/jlb.49.1.73. [DOI] [PubMed] [Google Scholar]
- Murray H. W., Cartelli D. M. Killing of intracellular Leishmania donovani by human mononuclear phagocytes. Evidence for oxygen-dependent and -independent leishmanicidal activity. J Clin Invest. 1983 Jul;72(1):32–44. doi: 10.1172/JCI110972. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Murray H. W., Rubin B. Y., Carriero S. M., Harris A. M., Jaffee E. A. Human mononuclear phagocyte antiprotozoal mechanisms: oxygen-dependent vs oxygen-independent activity against intracellular Toxoplasma gondii. J Immunol. 1985 Mar;134(3):1982–1988. [PubMed] [Google Scholar]
- Murray H. W., Szuro-Sudol A., Wellner D., Oca M. J., Granger A. M., Libby D. M., Rothermel C. D., Rubin B. Y. Role of tryptophan degradation in respiratory burst-independent antimicrobial activity of gamma interferon-stimulated human macrophages. Infect Immun. 1989 Mar;57(3):845–849. doi: 10.1128/iai.57.3.845-849.1989. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Rothermel C. D., Rubin B. Y., Jaffe E. A., Murray H. W. Oxygen-independent inhibition of intracellular Chlamydia psittaci growth by human monocytes and interferon-gamma-activated macrophages. J Immunol. 1986 Jul 15;137(2):689–692. [PubMed] [Google Scholar]
- Skerrett S. J., Martin T. R. Alveolar macrophage activation in experimental legionellosis. J Immunol. 1991 Jul 1;147(1):337–345. [PubMed] [Google Scholar]
- Taetle R., Honeysett J. M. Gamma-interferon modulates human monocyte/macrophage transferrin receptor expression. Blood. 1988 Jun;71(6):1590–1595. [PubMed] [Google Scholar]