Increased Content of Microbicidal Cationic Peptides in Rabbit Alveolar Macrophages Elicited by Complete Freund Adjuvant
Overview
Authors
Affiliations
We measured the microbicidal peptides MCP-1 and MCP-2 in rabbit alveolar macrophages (AM), comparing rabbits pretreated with complete Freund adjuvant with untreated control animals. Levels of MCP-1 increased from 4.7 +/- 0.6 microgram/10(7) resident AM to 13.2 +/- 0.1 microgram/10(7) complete Freund adjuvant-elicited AM. MCP-2 levels rose from 1.8 +/- 0.1 microgram/10(7) resident AM to 7.3 +/- 0.4 microgram/10(7) complete Freund adjuvant-elicited AM. The activities of five lysosomal hydrolases (beta-D-glucuronidase, beta-D-galactosidase, acid phosphatase, N-acetyl-beta-D-galactosaminidase, and N-acetyl-beta-D-glucosaminidase) were 44 to 96% higher in complete Freund adjuvant-elicited AM, and lysozyme activity was three- to fourfold higher. As MCP-1 and MCP-2 are major constituents of rabbit AM and exhibit potent antibacterial and antifungal properties, they may contribute to the expression of microbicidal activity in both resident and activated states.
Salmonella infection increases porcine antibacterial peptide concentrations in serum.
Zhang G, Ross C, Dritz S, Nietfeld J, Blecha F Clin Diagn Lab Immunol. 1998; 4(6):774-7.
PMID: 9384306 PMC: 170657. DOI: 10.1128/cdli.4.6.774-777.1997.
Couto M, Liu L, Lehrer R, Ganz T Infect Immun. 1994; 62(6):2375-8.
PMID: 8188361 PMC: 186521. DOI: 10.1128/iai.62.6.2375-2378.1994.
Byrne G, Faubion C Infect Immun. 1983; 40(2):464-71.
PMID: 6840848 PMC: 264878. DOI: 10.1128/iai.40.2.464-471.1983.
Lehrer R, Selsted M, Szklarek D, Fleischmann J Infect Immun. 1983; 42(1):10-4.
PMID: 6413408 PMC: 264516. DOI: 10.1128/iai.42.1.10-14.1983.
Modulation of pulmonary clearance of bacteria by antioxidants.
Pesanti E, Nugent K Infect Immun. 1985; 48(1):57-61.
PMID: 3980094 PMC: 261914. DOI: 10.1128/iai.48.1.57-61.1985.