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Infection and Immunity, September 1999, p. 4586-4593, Vol. 67, No. 9
0019-9567/99/$04.00+0
Copyright © 1999, American Society for Microbiology. All rights reserved.

Assessment of Immunity to Mycobacterial Infection with Luciferase Reporter Constructs

Valerie A. Snewin,* Marie-Pierre Gares, Peadar Ó Gaora, Zahra Hasan,dagger Ivor N. Brown, and Douglas B. Young

Department of Infectious Diseases and Microbiology, Imperial College School of Medicine, St. Mary's Campus, London W2 1PG, United Kingdom

Received 17 September 1998/Returned for modification 30 October 1998/Accepted 14 June 1999

Protective immunity to mycobacterial infection is incompletely understood but probably involves the coordinated interaction of multiple cell types and cytokines. With the aim of developing assays that might provide a surrogate measure of protective immunity, we have investigated the use of recombinant mycobacteria carrying luciferase reporter enzymes to assess the effectiveness of antimycobacterial immunity in model systems. Measurement of luminescence was shown to provide a rapid and simple alternative to the counting of CFU as a means of monitoring mycobacterial viability. We describe optimization of a luciferase reporter strain of Mycobacterium tuberculosis and demonstrate its application for the study of mycobacterial interactions with host cells in tissue culture and the rapid assessment of vaccine efficacy in a murine model.


* Corresponding author. Mailing address: Department of Infectious Diseases and Microbiology, Imperial College School of Medicine, St. Mary's Campus, Norfolk Place, London W2 1PG, United Kingdom. Phone: 44-171-594 3956. Fax: 44-171 262 6299. E-mail: v.snewin{at}ic.ac.uk.

dagger Present address: Department of Microbiology, The Aga Khan University, Karachi 74800, Pakistan.


Infection and Immunity, September 1999, p. 4586-4593, Vol. 67, No. 9
0019-9567/99/$04.00+0
Copyright © 1999, American Society for Microbiology. All rights reserved.



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Copyright © 1999 by the American Society for Microbiology. All rights reserved.