Abstract
MACROPHAGES ARE ASSOCIATED WITH MOST CHRONIC INFLAMMATORY LESIONS, AND THESE CELLS CONTAIN ENZYMES THAT ARE ABLE TO DESTROY CONNECTIVE TISSUE CONSTITUENTS. Normal lymphoid cells responding to a mitogen, phytohemagglutinin-P, release factor(s) that cause a marked increase in the size and enzyme content for mononuclear phagocytes maintained in culture. The stimulated macrophages, which by several criteria remain otherwise viable and healthy, selectively release large quantities of hydrolytic enzymes to the culture medium.
Full text
PDFImages in this article
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Bloom B. R., Bennett B. Mechanism of a reaction in vitro associated with delayed-type hypersensitivity. Science. 1966 Jul 1;153(3731):80–82. doi: 10.1126/science.153.3731.80. [DOI] [PubMed] [Google Scholar]
- David J. R. Delayed hypersensitivity in vitro: its mediation by cell-free substances formed by lymphoid cell-antigen interaction. Proc Natl Acad Sci U S A. 1966 Jul;56(1):72–77. doi: 10.1073/pnas.56.1.72. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Davies P., Page R. C., Allison A. C. Changes in cellular enzyme levels and extracellular release of lysosomal acid hydrolases in macrophages exposed to group A streptococcal cell wall substance. J Exp Med. 1974 May 1;139(5):1262–1282. doi: 10.1084/jem.139.5.1262. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Fowles R. E., Fajardo I. M., Leibowitch J. L., David J. R. The enhancement of macrophage bacteriostasis by products of activated lymphocytes. J Exp Med. 1973 Oct 1;138(4):952–964. doi: 10.1084/jem.138.4.952. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Granger G. A., Kolb W. P. Lymphocyte in vitro cytotoxicity: mechanisms of immune and non-immune small lymphocyte mediated target L cell destruction. J Immunol. 1968 Jul;101(1):111–120. [PubMed] [Google Scholar]
- Ivanyi L., Lehner T. Stimulation of lymphocyte transformation by bacterial antigens in patients with periodontal disease. Arch Oral Biol. 1970 Nov;15(11):1089–1096. doi: 10.1016/0003-9969(70)90121-4. [DOI] [PubMed] [Google Scholar]
- Krahenbuhl J. L., Rosenberg L. T., Remington J. S. The role of thymus-derived lymphocytes in the in vitro activation of macrophages to kill Listeria monocytogenes. J Immunol. 1973 Oct;111(4):992–995. [PubMed] [Google Scholar]
- LOWRY O. H., ROSEBROUGH N. J., FARR A. L., RANDALL R. J. Protein measurement with the Folin phenol reagent. J Biol Chem. 1951 Nov;193(1):265–275. [PubMed] [Google Scholar]
- Magliulo E., De Feo V., Stirpe A., Riva C., Scevola D. Enhanced in vitro phagocytic power of macrophages from PPD-stimulated skin sites in human subjects hypersensitive to PPD. Clin Exp Immunol. 1973 Jul;14(3):371–376. [PMC free article] [PubMed] [Google Scholar]
- Mooney J. J., Waksman B. H. Activation of normal rabbit macrophage monolayers by supernatants of antigen-stimulated lymphocytes. J Immunol. 1970 Nov;105(5):1138–1145. [PubMed] [Google Scholar]
- Nath I., Poulter L. W., Turk J. L. Effect of lymphocyte mediators on macrophages in vitro. A correlation of morphological and cytochemical changes. Clin Exp Immunol. 1973 Mar;13(3):455–466. [PMC free article] [PubMed] [Google Scholar]
- Nathan C. F., Karnovsky M. L., David J. R. Alterations of macrophage functions by mediators from lymphocytes. J Exp Med. 1971 Jun 1;133(6):1356–1376. doi: 10.1084/jem.133.6.1356. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Page R. C., Davies P., Allison A. C. Participation of mononuclear phagocytes in chronic inflammatory diseases. J Reticuloendothel Soc. 1974 May;15(5):413–438. [PubMed] [Google Scholar]
- Page R. C., Davies P., Allison A. C. Pathogenesis of the chronic inflammatory lesion induced by group A streptococcal cell walls. Lab Invest. 1974 May;30(5):568–581. [PubMed] [Google Scholar]
- Pick E., Krejci J., Cech K., Turk J. L. Interaction between 'sensitized lymphocytes' and antigen in vitro. I. The release of a skin reactive factor. Immunology. 1969 Nov;17(5):741–767. [PMC free article] [PubMed] [Google Scholar]
- Pick E., Turk J. L. The biological activities of soluble lymphocyte products. Clin Exp Immunol. 1972 Jan;10(1):1–23. [PMC free article] [PubMed] [Google Scholar]
- Wahl L. M., Wahl S. M., Mergenhagen S. E., Martin G. R. Collagenase production by endotoxin-activated macrophages. Proc Natl Acad Sci U S A. 1974 Sep;71(9):3598–3601. doi: 10.1073/pnas.71.9.3598. [DOI] [PMC free article] [PubMed] [Google Scholar]