Severe tuberculosis induces unbalanced up-regulation of gene networks and overexpression of IL-22, MIP-1α, CCL27, IP-10, CCR4, CCR5, CXCR3, PD1, PDL2, IL-3 …

L Qiu, D Huang, CY Chen, R Wang… - The Journal of …, 2008 - academic.oup.com
L Qiu, D Huang, CY Chen, R Wang, L Shen, Y Shen, R Hunt, J Estep, BF Haynes…
The Journal of infectious diseases, 2008academic.oup.com
The immune mechanisms by which early host-mycobacterium interaction leads to the
development of severe tuberculosis (TB) remain poorly characterized in humans. Here, we
demonstrate that severe TB in juvenile rhesus monkeys down-regulated many genes in the
blood but up-regulated selected genes constituting gene networks of Th17 and Th1
responses, T cell activation and migration, and inflammation and chemoattractants in the
pulmonary and lymphoid compartments. Overexpression (450–2740-fold) of 13 genes …
Abstract
The immune mechanisms by which early host-mycobacterium interaction leads to the development of severe tuberculosis (TB) remain poorly characterized in humans. Here, we demonstrate that severe TB in juvenile rhesus monkeys down-regulated many genes in the blood but up-regulated selected genes constituting gene networks of Th17 and Th1 responses, T cell activation and migration, and inflammation and chemoattractants in the pulmonary and lymphoid compartments. Overexpression (450–2740-fold) of 13 genes encoding inflammatory cytokines and receptors (IL-22, CCL27, MIP-1α, IP-10, CCR4, CCR5, and CXCR3), immune dysfunctional receptors and ligands (PD1 and PDL2), and immune activation elements (IL-3, IFN-β, TIM1, and TLR2) was seen in tissues, with low antigen-specific cellular responses. Thus, severe TB in macaques features unbalanced up-regulation of immune-gene networks without proportional increases in antigen-specific cellular responses.
Oxford University Press