Abstract
The stimulus for the migration of polymorphonuclear leukocytes (PMNs) in acute chlamydial infection was studied in vitro by examining the chemotaxigenic effect of L2 and DE Chlamydia trachomatis elementary bodies (EB) upon the plasma of three healthy donors. In each individual experiment, chemotactic response was assessed with PMNs and plasma from the same respective donor, and no specific antibodies against C. trachomatis were detected in the plasma of any donor. Chemotaxis was observed in an agarose plate assay and was quantitated as the chemotactic differential, or CD (directed migration of PMNs minus random movement of PMNs). For each donor, the mean CD was significantly greater (P less than 0.005) when plasma preincubated for 2 h with L2 EB was used as the chemoattractant than when (i) plasma alone, (ii) plasma preheated to 56 degrees C for 30 min before incubation with L2 EB, or (iii) L2 EB in phosphate-buffered saline (PBS) was used as the potential chemoattractant. Similarly, in the one donor in whom DE EB were studied, the mean CD was also significantly greater (P less than 0.005) for plasma preincubated with DE EB as compared with (i) plasma alone or (ii) DE EB in PBS. Complement activation by C. trachomatis EB was assessed by radioimmunoassay for C5a des-arginine in all chemoattractant preparations used in the chemotaxis assay. Mean C5a des-arginine levels were high in plasma samples preincubated with L2 EB (171.00 +/- 10.64, 107.00 +/- 4.76, and 89.70 +/- 1.74 ng per ml) or DE EB (37.40 +/- 15.76 ng per ml) but were undetectable (less than 4.0 ng per ml) in (i) plasma alone, (ii) preheated plasma incubated with L2 EB, and (iii) PBS containing L2 EB. Thus, L2 EB and DE EB of C. trachomatis exert a chemotaxigenic effect upon normal antibody-negative plasma, and this effect is at least in part a result of complement activation and generation of the potent chemotaxin C5a.
Full text
PDF



Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Bokisch V. A., Müller-Eberhard H. J. Anaphylatoxin inactivator of human plasma: its isolation and characterization as a carboxypeptidase. J Clin Invest. 1970 Dec;49(12):2427–2436. doi: 10.1172/JCI106462. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Bowie W. R., Wang S. P., Alexander E. R., Floyd J., Forsyth P. S., Pollock H. M., Lin J. S., Buchanan T. M., Holmes K. K. Etiology of nongonococcal urethritis. Evidence for Chlamydia trachomatis and Ureaplasma urealyticum. J Clin Invest. 1977 May;59(5):735–742. doi: 10.1172/JCI108694. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Böyum A. Isolation of mononuclear cells and granulocytes from human blood. Isolation of monuclear cells by one centrifugation, and of granulocytes by combining centrifugation and sedimentation at 1 g. Scand J Clin Lab Invest Suppl. 1968;97:77–89. [PubMed] [Google Scholar]
- Caldwell H. D., Kromhout J., Schachter J. Purification and partial characterization of the major outer membrane protein of Chlamydia trachomatis. Infect Immun. 1981 Mar;31(3):1161–1176. doi: 10.1128/iai.31.3.1161-1176.1981. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Dhir S. P., Hakomori S., Kenny G. E., Grayston J. T. Immunochemical studies on chlamydial group antigen (presence of a 2-keto-3-deoxycarbohydrate as immunodominant group). J Immunol. 1972 Jul;109(1):116–122. [PubMed] [Google Scholar]
- FURNESS G., GRAHAM D. M., REEVE P. The titration of trachoma and inclusion blennorrhoea viruses in cell cultures. J Gen Microbiol. 1960 Dec;23:613–619. doi: 10.1099/00221287-23-3-613. [DOI] [PubMed] [Google Scholar]
- Fernandez H. N., Henson P. M., Otani A., Hugli T. E. Chemotactic response to human C3a and C5a anaphylatoxins. I. Evaluation of C3a and C5a leukotaxis in vitro and under stimulated in vivo conditions. J Immunol. 1978 Jan;120(1):109–115. [PubMed] [Google Scholar]
- Hatch T. P. Competition between Chlamydia psittaci and L cells for host isoleucine pools: a limiting factor in chlamydial multiplication. Infect Immun. 1975 Jul;12(1):211–220. doi: 10.1128/iai.12.1.211-220.1975. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Lewis V. J., Thacker W. L., Mitchell S. H. Demonstration of chlamydial endotoxin-like activity. J Gen Microbiol. 1979 Sep;114(1):215–216. doi: 10.1099/00221287-114-1-215. [DOI] [PubMed] [Google Scholar]
- Mårdh P. A., Svensson L. Chlamydial salpingitis. Scand J Infect Dis Suppl. 1982;32:64–72. [PubMed] [Google Scholar]
- Nelson R. D., Quie P. G., Simmons R. L. Chemotaxis under agarose: a new and simple method for measuring chemotaxis and spontaneous migration of human polymorphonuclear leukocytes and monocytes. J Immunol. 1975 Dec;115(6):1650–1656. [PubMed] [Google Scholar]
- Newhall W. J., Batteiger B., Jones R. B. Analysis of the human serological response to proteins of Chlamydia trachomatis. Infect Immun. 1982 Dec;38(3):1181–1189. doi: 10.1128/iai.38.3.1181-1189.1982. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Nurminen M., Leinonen M., Saikku P., Mäkelä P. H. The genus-specific antigen of Chlamydia: resemblance to the lipopolysaccharide of enteric bacteria. Science. 1983 Jun 17;220(4603):1279–1281. doi: 10.1126/science.6344216. [DOI] [PubMed] [Google Scholar]
- Orr W., Ward P. A. Quantitation of leukotaxis in agarose by three different methods. J Immunol Methods. 1978;20:95–107. doi: 10.1016/0022-1759(78)90248-x. [DOI] [PubMed] [Google Scholar]
- Paavonen J., Vesterinen E., Mårdh P. A. Infertility as a sequela of chlamydial pelvic inflammatory disease. Scand J Infect Dis Suppl. 1982;32:73–76. [PubMed] [Google Scholar]
- Wang S. P., Grayston J. T., Alexander E. R., Holmes K. K. Simplified microimmunofluorescence test with trachoma-lymphogranuloma venereum (Chlamydia trachomatis) antigens for use as a screening test for antibody. J Clin Microbiol. 1975 Mar;1(3):250–255. doi: 10.1128/jcm.1.3.250-255.1975. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Yong E. C., Klebanoff S. J., Kuo C. C. Toxic effect of human polymorphonuclear leukocytes on Chlamydia trachomatis. Infect Immun. 1982 Aug;37(2):422–426. doi: 10.1128/iai.37.2.422-426.1982. [DOI] [PMC free article] [PubMed] [Google Scholar]