Journal
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
Volume 105, Issue 42, Pages 16260-16265Publisher
NATL ACAD SCIENCES
DOI: 10.1073/pnas.0805325105
Keywords
HIV; innate immunity; adjuvants; MyD88; TRIF
Categories
Funding
- National Institutes of Health (NIH
- National Cancer Institute
- Center for Cancer Research
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Toll-like receptors (TLRs) may need to cooperate with each other to be effective in detecting imminent infection and trigger immune responses. understanding is still limited about the intracellular mechanism of this cooperation. We found that when certain TLRs are involved, dendritic cells (DCs) establish unidirectional intracellular cross-talk, in which the MyD88-independent TRIF-dependent pathway amplifies the MyD88-dependent DC function through a JNK-dependent mechanism. The amplified MyD88-dependent DC function determines the induction of the T cell response to a given vaccine in vivo. Therefore, our study revealed an underlying TLR mechanism governing the functional, nonrandom interplay among TLRs for recognition of combinatorial ligands that may be dangerous to the host, providing important guidance for design of novel synergistic molecular vaccine adjuvants.
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