id author title date pages extension mime words sentences flesch summary cache txt cord-282507-swxs5pr1 Lacaille-Dubois, Marie-Aleth Updated insights into the mechanism of action and clinical profile of the immunoadjuvant QS-21: A review 2019-07-31 .txt text/plain 8445 355 43 The second part of the review is related to phase I-III clinical trials of QS-21, mostly formulated in ASs, to evaluate efficacy, immunogenicity and safety of adjuvanted prophylactic vaccines against infectious diseases, e.g. malaria, herpes zoster, tuberculosis, AIDS and therapeutic vaccines against cancer and Alzheimer's disease. They can act on one or more of the following targets to increase response to Ags: (1) sustaining release at the injection site (depot effect), (2) transient secretion of cytokines and chemokines, (3) recruitement of various immune cells (neutrophils, monocytes, eosinophils, macrophages and Dendritic Cells (DCs) at the injection site leading to a local immune-competent environment, (4) expression by the recruited APCs of various Pathogen Recognition Receptors (PRRs) both on their surface (Toll-like receptors, TLRs, C-type lectin receptors, CLRs), and intracellularly (Nucleotide Oligomerization Domain (NOD)-like receptors (NLRs) and Retinoic Inducible Gene-1 (RIG)-like receptors (RLRs)), which are recognized and/or activated by adjuvants, (5) maturation and activation of recruited APCs which up-regulate the expression of Major Histocompatibility Complex (MHC)-I and/or MHC-II and activation of co-stimulatory signals CD40, CD80/86, (6) increased capacity of APCs for Ag processing and presentation by MHC, (7) migration of the mature APCs to the draining lymph nodes (dLNs) to interact with Ag-specific B or T lymphocytes (through receptor-ligand interactions, MHC-T cell receptor (MHC-TCR), CD40-CD40L, CD80/86-CD28) which are activated to produce potent Ab-secreting B cells and/or effector CD8 + T cell responses (Awate et al., 2013) . ./cache/cord-282507-swxs5pr1.txt ./txt/cord-282507-swxs5pr1.txt