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Clinical and Diagnostic Laboratory Immunology, July 2002, p. 901-907, Vol. 9, No. 4
1071-412X/02/$04.00+0     DOI: 10.1128/CDLI.9.4.901-907.2002
Copyright © 2002, American Society for Microbiology. All Rights Reserved.

Bactericidal Activity in Whole Blood as a Potential Surrogate Marker of Immunity after Vaccination against Tuberculosis

Seon-Hee Cheon,1,2 Beate Kampmann,3 Amy G. Hise,1 Manijeh Phillips,1 Ho-Yeon Song,4 Katherine Landen,1 Qing Li,1 Rhonda Larkin,1 Jerrold J. Ellner,4 Richard F. Silver,1 Daniel F. Hoft,5 and Robert S. Wallis1,4*

Case Western Reserve University, Cleveland, Ohio,1 Ewha Woman's University Hospital, Seoul, Korea,2 Imperial College of Science, Technology and Medicine, London, United Kingdom,3 St. Louis University Vaccine and Treatment Evaluation Unit, St. Louis, Missouriand,5 UMDNJ-New Jersey Medical School, Newark, New Jersey4

Received 12 November 2001/ Returned for modification 10 January 2002/ Accepted 10 April 2002

The development of new tuberculosis (TB) vaccines will require the identification of correlates of human protection. This study examined the balance between immunity and virulence in a whole blood infection model in which intracellular mycobacterial survival was measured using BACTEC. In the blood of tuberculin-negative donors, counts of Mycobacterium tuberculosis H37Ra organisms fell by 0.14 log10 CFU during 96 h of whole blood culture, whereas counts of Mycobacterium bovis BCG, M. tuberculosis H37Rv, and a clinical TB isolate's organisms increased by 0.13, 0.43, and 1.04 log10 CFU, respectively (P < 0.001), consistent with their relative virulence. Inhibition of tumor necrosis factor alpha by the addition of methylprednisolone or pentoxifylline or removal of CD4+ or CD8+ T cells by magnetic beads had deleterious effects on immune control of intracellular growth only in the blood of tuberculin-positive donors. Repeated vaccination of eight tuberculin-negative volunteers with M. bovis BCG resulted in a 0.3 log (50%) reduction in BCG CFU counts in the model compared to baseline values (P < 0.05). Three of the volunteers responded only after the second vaccination. These experiments indicate that whole blood culture may be used to measure immunity to M. tuberculosis and that further studies of repeated BCG vaccination are warranted.

* Corresponding author. Mailing address: Department of Medicine, UMDNJ-NJMS, 185 S. Orange Ave., MSB 1-503, Newark, NJ 07103. Phone: (973) 972-8778. Fax: (973) 972-8878. E-mail: r.wallis{at}umdnj.edu.

Clinical and Diagnostic Laboratory Immunology, July 2002, p. 901-907, Vol. 9, No. 4
1071-412X/02/$04.00+0     DOI: 10.1128/CDLI.9.4.901-907.2002
Copyright © 2002, American Society for Microbiology. All Rights Reserved.



This article has been cited by other articles:

  • Janulionis, E., Sofer, C., Schwander, S. K., Nevels, D., Kreiswirth, B., Shashkina, E., Wallis, R. S. (2005). Survival and Replication of Clinical Mycobacterium tuberculosis Isolates in the Context of Human Innate Immunity. Infect. Immun. 73: 2595-2601 [Abstract] [Full Text]  
  • Kampmann, B., Tena, G. N., Mzazi, S., Eley, B., Young, D. B., Levin, M. (2004). Novel Human In Vitro System for Evaluating Antimycobacterial Vaccines. Infect. Immun. 72: 6401-6407 [Abstract] [Full Text]  
  • Janulionis, E., Sofer, C., Song, H.-Y., Wallis, R. S. (2004). Lack of Activity of Orally Administered Clofazimine against Intracellular Mycobacterium tuberculosis in Whole-Blood Culture. Antimicrob. Agents Chemother. 48: 3133-3135 [Abstract] [Full Text]  
  • Wallis, R. S., Song, H.-Y., Whalen, C., Okwera, A. (2004). TB Chemotherapy: Antagonism between Immunity and Sterilization. Am. J. Respir. Crit. Care Med. 169: 771-772 [Full Text]  


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