* To identify the sites where dormant bacilli survive, whether their metabolism is different from that of actively growing bacilli and whether they express different antigens.
* To study the nature of the immune response that maintains the latent state and differences between the immune response in men and mice and in latent and progressive tuberculosis.
* To define the immunological and endocrine factors which induce reactivation.
* A relevant mouse model for latent tuberculosis and reactivation of the disease in man. Knowledge of what antigens and biological mechanisms which induce keep-up and terminate latency and which are involved in reactivation of the disease.
* To strengthen research capability and training in two DC laboratories in tuberculosis high endemic countries.
* Establish a mouse model for asymptomatic lifelong infection with stable bacillary counts to study histopathology and number of bacilli throughout lungs, spleen, liver and bone narrow.
* Study antigen expression in actively dividing bacilli and in dormant bacilli through immune response to specific antigens, purification and characterisation and identification of gene activation.
* Study T-cell subsets and cytokines in various stages of tuberculosis infection in mice and men.
* Follow the antigen specificity of T-cell responses and antibodies throughout infection in men and mice.
* Study the importance of hormones, growth factors and non peptide biological active components from Mycobacterium tuberculosis in latency and reactivation of the disease.
Funding SchemeCSC - Cost-sharing contracts
2003 Addis Abeba
14000 Tlalpan Df
W1P 6DB London