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. 1981 Dec;68(6):1435–1440. doi: 10.1172/JCI110395

Role of salivary protease activity in adherence of gram-negative bacilli to mammalian buccal epithelial cells in vivo.

D E Woods, D C Straus, W G Johanson Jr, J A Bass
PMCID: PMC370945  PMID: 6798070

Abstract

Serious illness is accompanied by markedly increased susceptibility to colonization of the respiratory tract by gram-negative bacilli and an increase in the number of such organisms which adhere to regional epithelial cells during incubation in vitro. Trypsinization of cells from normal subjects causes a similar increase in bacillary adherence. We studied bacillary adherence to buccal cells in vitro, protease activity of upper respiratory secretions with a fibrin plate technique, and the amount of fibronectin on the surface of buccal cells with a direct radioimmunobinding assay. Among 10 patients seriously ill with acute respiratory failure bacillary adherence to buccal cells and protease activity in secretions were increased compared with controls and cell-surface fibronectin was decreased; all patients were colonized in vivo with gram-negative bacilli. These changes were persistent and 80% of the patients died. Serial determinations were made in eight patients undergoing coronary artery bypass surgery. Following surgery, protease activity and bacillary adherence increased and cell-surface fibronectin decreased; 38% of coronary artery bypass patients became colonized. In these uncomplicated patients the changes observed were transient, largely returning to normal by the third postoperative day. Increased protease activity of secretions and alterations in epithelial cell surfaces as reflected by loss of buccal cell-surface fibronectin occur swiftly after major illness and appear to underlie enhanced cell adherence of bacilli and colonization of the upper respiratory tract. These findings suggest new approaches to the prevention of nosocomial pneumonia.

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Selected References

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

  1. Astrup T. Tissue activators of plasminogen. Fed Proc. 1966 Jan-Feb;25(1):42–51. [PubMed] [Google Scholar]
  2. Duguid J. P. The function of bacterial fimbriae. Arch Immunol Ther Exp (Warsz) 1968;16(2):173–188. [PubMed] [Google Scholar]
  3. Fowler J. E., Jr, Stamey T. A. Studies of introital colonization in women with recurrent urinary infections. VII. The role of bacterial adherence. J Urol. 1977 Apr;117(4):472–476. doi: 10.1016/s0022-5347(17)58501-8. [DOI] [PubMed] [Google Scholar]
  4. Fraker P. J., Speck J. C., Jr Protein and cell membrane iodinations with a sparingly soluble chloroamide, 1,3,4,6-tetrachloro-3a,6a-diphrenylglycoluril. Biochem Biophys Res Commun. 1978 Feb 28;80(4):849–857. doi: 10.1016/0006-291x(78)91322-0. [DOI] [PubMed] [Google Scholar]
  5. Freter R., Jones G. W. Adhesive properties of Vibrio cholerae: nature of the interaction with intact mucosal surfaces. Infect Immun. 1976 Jul;14(1):246–256. doi: 10.1128/iai.14.1.246-256.1976. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. Gibbons R. J., Houte J. V. Bacterial adherence in oral microbial ecology. Annu Rev Microbiol. 1975;29:19–44. doi: 10.1146/annurev.mi.29.100175.000315. [DOI] [PubMed] [Google Scholar]
  7. Green G. M. The J. Burns Amberson Lecture--in defense of the lung. Am Rev Respir Dis. 1970 Nov;102(5):691–703. doi: 10.1164/arrd.1970.102.5.691. [DOI] [PubMed] [Google Scholar]
  8. Higuchi J. H., Johanson W. G., Jr The relationship between adherence of Pseudomonas aeruginosa to upper respiratory cells in vitro and susceptibility to colonization in vivo. J Lab Clin Med. 1980 May;95(5):698–705. [PubMed] [Google Scholar]
  9. Johanson W. G., Jr, Higuchi J. H., Chaudhuri T. R., Woods D. E. Bacterial adherence to epithelial cells in bacillary colonization of the respiratory tract. Am Rev Respir Dis. 1980 Jan;121(1):55–63. doi: 10.1164/arrd.1980.121.1.55. [DOI] [PubMed] [Google Scholar]
  10. Johanson W. G., Jr, Woods D. E., Chaudhuri T. Association of respiratory tract colonization with adherence of gram-negative bacilli to epithelial cells. J Infect Dis. 1979 Jun;139(6):667–673. doi: 10.1093/infdis/139.6.667. [DOI] [PubMed] [Google Scholar]
  11. Johanson W. G., Pierce A. K., Sanford J. P. Changing pharyngeal bacterial flora of hospitalized patients. Emergence of gram-negative bacilli. N Engl J Med. 1969 Nov 20;281(21):1137–1140. doi: 10.1056/NEJM196911202812101. [DOI] [PubMed] [Google Scholar]
  12. Klinger J. D., Straus D. C., Hilton C. B., Bass J. A. Antibodies to proteases and exotoxin A of Pseudomonas aeruginosa in patients with cystic fibrosis: Demonstration by radioimmunoassay. J Infect Dis. 1978 Jul;138(1):49–48. doi: 10.1093/infdis/138.1.49. [DOI] [PubMed] [Google Scholar]
  13. Laemmli U. K. Cleavage of structural proteins during the assembly of the head of bacteriophage T4. Nature. 1970 Aug 15;227(5259):680–685. doi: 10.1038/227680a0. [DOI] [PubMed] [Google Scholar]
  14. Ofek I., Mirelman D., Sharon N. Adherence of Escherichia coli to human mucosal cells mediated by mannose receptors. Nature. 1977 Feb 17;265(5595):623–625. doi: 10.1038/265623a0. [DOI] [PubMed] [Google Scholar]
  15. Petty T. L., Ashbaugh D. G. The adult respiratory distress syndrome. Clinical features, factors influencing prognosis and principles of management. Chest. 1971 Sep;60(3):233–239. doi: 10.1378/chest.60.3.233. [DOI] [PubMed] [Google Scholar]
  16. Punsalang A. P., Jr, Sawyer W. D. Role of pili in the virulence of Neisseria gonorrhoeae. Infect Immun. 1973 Aug;8(2):255–263. doi: 10.1128/iai.8.2.255-263.1973. [DOI] [PMC free article] [PubMed] [Google Scholar]
  17. Salit I. E., Gotschlich E. C. Type I Escherichia coli pili: characterization of binding to monkey kidney cells. J Exp Med. 1977 Nov 1;146(5):1182–1194. doi: 10.1084/jem.146.5.1182. [DOI] [PMC free article] [PubMed] [Google Scholar]
  18. Sellwood R., Gibbons R. A., Jones G. W., Rutter J. M. Adhesion of enteropathogenic Escherichia coli to pig intestinal brush borders: the existence of two pig phenotypes. J Med Microbiol. 1975 Aug;8(3):405–411. doi: 10.1099/00222615-8-3-405. [DOI] [PubMed] [Google Scholar]
  19. Sobeslavsky O., Prescott B., Chanock R. M. Adsorption of Mycoplasma pneumoniae to neuraminic acid receptors of various cells and possible role in virulence. J Bacteriol. 1968 Sep;96(3):695–705. doi: 10.1128/jb.96.3.695-705.1968. [DOI] [PMC free article] [PubMed] [Google Scholar]
  20. Stevens R. M., Teres D., Skillman J. J., Feingold D. S. Pneumonia in an intensive care unit. A 30-month experience. Arch Intern Med. 1974 Jul;134(1):106–111. [PubMed] [Google Scholar]
  21. Unkeless J. C., Tobia A., Ossowski L., Quigley J. P., Rifkin D. B., Reich E. An enzymatic function associated with transformation of fibroblasts by oncogenic viruses. I. Chick embryo fibroblast cultures transformed by avian RNA tumor viruses. J Exp Med. 1973 Jan 1;137(1):85–111. doi: 10.1084/jem.137.1.85. [DOI] [PMC free article] [PubMed] [Google Scholar]
  22. Vuento M., Vaheri A. Dissociation of fibronectin from gelatin-agarose by amino compounds. Biochem J. 1978 Oct 1;175(1):333–336. doi: 10.1042/bj1750333. [DOI] [PMC free article] [PubMed] [Google Scholar]
  23. Woods D. E., Straus D. C., Johanson W. G., Jr, Berry V. K., Bass J. A. Role of pili in adherence of Pseudomonas aeruginosa to mammalian buccal epithelial cells. Infect Immun. 1980 Sep;29(3):1146–1151. doi: 10.1128/iai.29.3.1146-1151.1980. [DOI] [PMC free article] [PubMed] [Google Scholar]
  24. Yamada K. M., Olden K. Fibronectins--adhesive glycoproteins of cell surface and blood. Nature. 1978 Sep 21;275(5677):179–184. doi: 10.1038/275179a0. [DOI] [PubMed] [Google Scholar]
  25. Zetter B. R., Daniels T. E., Quadra-White C., Greenspan J. S. LETS protein in normal and pathological human oral epithelium. J Dent Res. 1979 Jan;58(1):484–488. doi: 10.1177/00220345790580010401. [DOI] [PubMed] [Google Scholar]

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