Skip to main content
The American Journal of Pathology logoLink to The American Journal of Pathology
. 1980 Apr;99(1):231–242.

Experimental type 25 pneumococcal pneumonia in rats: an electron-microscopic study.

K Yoneda, J D Coonrod
PMCID: PMC1903469  PMID: 7361859

Abstract

A self-healing lobar pneumonia was produced in rats by intratracheal instillation of Type 25 pneumococci. Sequential changes in the lung were examined by electron microscopy from the onset of acute inflammation through resolution. Manifestations of the infection included vascular endothelial changes of acute inflammation and leukocytic mobilization. The pulmonary alveolar epithelium showed only minimal changes throughout the infection. The significance of the findings is discussed in relation to the pathogenesis of pneumococcal lobar pneumonia.

Full text

PDF
234

Images in this article

Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Adamson I. Y., Bowden D. H. The pathogenesis of bleomycin-induced pulmonary fibrosis in mice. Am J Pathol. 1974 Nov;77(2):185–197. [PMC free article] [PubMed] [Google Scholar]
  2. Aso Y., Yoneda K., Kikkawa Y. Morphologic and biochemical study of pulmonary changes induced by bleomycin in mice. Lab Invest. 1976 Dec;35(6):558–568. [PubMed] [Google Scholar]
  3. Baskerville A., Dow C., Curran W. L., Hanna J. Further studies on experimental bacterial pneumonia: ultrastructural changes produced in the lungs by Salmonella cholerae-suis. Br J Exp Pathol. 1973 Feb;54(1):90–98. [PMC free article] [PubMed] [Google Scholar]
  4. Coonrod J. D., Jenkins S. D. Functional assay of the alternative complement pathway of rat serum. J Immunol Methods. 1979;31(3-4):291–301. doi: 10.1016/0022-1759(79)90142-x. [DOI] [PubMed] [Google Scholar]
  5. Desai U., Kreutzer D. L., Showell H., Arroyave C. V., Ward P. A. Acute inflammatory pulmonary reactions induced by chemotactic factors. Am J Pathol. 1979 Jul;96(1):71–83. [PMC free article] [PubMed] [Google Scholar]
  6. Fine D. P. Pneumococcal type-associated variability in alternate complement pathway activation. Infect Immun. 1975 Oct;12(4):772–778. doi: 10.1128/iai.12.4.772-778.1975. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Finegold M. J. Pneumonic plague in monkeys. An electron microscopic study. Am J Pathol. 1969 Feb;54(2):167–185. [PMC free article] [PubMed] [Google Scholar]
  8. LOOSLI C. G., BAKER R. F. ACUTE EXPERIMENTAL PNEUMOCOCCAL (TYPE I) PNEUMONIA IN THE MOUSE: THE MIGRATION OF LEUCOCYTES FROM THE PULMONARY CAPILLARIES INTO THE ALVEOLAR SPACES AS REVEALED BY THE ELECTRON MICROSCOPE. Trans Am Clin Climatol Assoc. 1962;74:15–28. [PMC free article] [PubMed] [Google Scholar]
  9. MERCKX J. J., BROWN A. L., Jr, KARLSON A. G. AN ELECTRON-MICROSCOPIC STUDY OF EXPERIMENTAL INFECTIONS WITH ACID-FAST BACILLI. Am Rev Respir Dis. 1964 Apr;89:485–496. doi: 10.1164/arrd.1964.89.4.485. [DOI] [PubMed] [Google Scholar]
  10. Pine J. H., Richter W. R., Esterly J. R. Experimental lung injury. I. Bacterial pneumonia: ultrastructural, autoradiographic and histochemical observations. Am J Pathol. 1973 Oct;73(1):115–130. [PMC free article] [PubMed] [Google Scholar]
  11. Reed W. P., Davidson M. S., Williams R. C., Jr Complement system in pneumococcal infections. Infect Immun. 1976 Apr;13(4):1120–1125. doi: 10.1128/iai.13.4.1120-1125.1976. [DOI] [PMC free article] [PubMed] [Google Scholar]
  12. Robertson J., Caldwell J. R., Castle J. R., Waldman R. H. Evidence for the presence of components of the alternative (properdin) pathway of complement activation in respiratory secretions. J Immunol. 1976 Sep;117(3):900–903. [PubMed] [Google Scholar]
  13. Sloyer J. L., Jr, Howie V. M., Ploussard J. H., Ammann A. J., Austrian R., Johnston R. B., Jr Immune response to acute otitis media in children. I. Serotypes isolated and serum and middle ear fluid antibody in pneumococcal otitis media. Infect Immun. 1974 Jun;9(6):1028–1032. doi: 10.1128/iai.9.6.1028-1032.1974. [DOI] [PMC free article] [PubMed] [Google Scholar]
  14. TOMASZ A., JAMIESON J. D., OTTOLENGHI E. THE FINE STRUCTURE OF DIPLOCOCCUS PNEUMONIAE. J Cell Biol. 1964 Aug;22:453–467. doi: 10.1083/jcb.22.2.453. [DOI] [PMC free article] [PubMed] [Google Scholar]
  15. WOOD W. B., SMITH M. R. Host-parasite relationships in experimental pneumonia due to pneumococcus type III. J Exp Med. 1950 Jul 1;92(1):85–100. doi: 10.1084/jem.92.1.85. [DOI] [PMC free article] [PubMed] [Google Scholar]
  16. Winkelstein J. A., Tomasz A. Activation of the alternative pathway by pneumococcal cell walls. J Immunol. 1977 Feb;118(2):451–454. [PubMed] [Google Scholar]

Articles from The American Journal of Pathology are provided here courtesy of American Society for Investigative Pathology

RESOURCES