Development of a cytotoxic T-lymphocyte-based, broadly protective influenza vaccine. 2011

Tetsuya Uchida
Department of Safety Research on Blood and Biological Products, National Institute of Infectious Diseases, Musashimurayama-City, Tokyo, Japan. tuchida@nih.go.jp

The current vaccination strategy against influenza is to induce production of antibodies directed against the surface antigens of these viruses. However, frequent changes in the surface antigens of influenza viruses allow them to avoid antibody-mediated immunity. On the other hand, it is known that cytotoxic T-lymphocyte (CTL) populations directed against internal antigens of influenza A virus are broadly cross-reactive to influenza virus subtypes. The present authors have previously demonstrated that antigens chemically coupled to the surface of liposomes made using unsaturated fatty acids are cross-presented by APCs via MHC class I to CD8(+) T cells and induce antigen-specific CTLs. Based on this finding, a liposome vaccine that is capable of inducing CTL response against internal antigens of influenza viruses and removing virus-infected cells in the host has been developed. The CTL-based liposomal technique might be applicable for developing vaccines against influenza and other viruses, such as hepatitis C, HIV, and severe acute respiratory syndrome corona virus, which frequently change their surface antigenic molecules.

UI MeSH Term Description Entries
D007156 Immunologic Memory The altered state of immunologic responsiveness resulting from initial contact with antigen, which enables the individual to produce antibodies more rapidly and in greater quantity in response to secondary antigenic stimulus. Immune Memory,Immunological Memory,Memory, Immunologic,Immune Memories,Immunologic Memories,Immunological Memories,Memory, Immune,Memory, Immunological
D007251 Influenza, Human An acute viral infection in humans involving the respiratory tract. It is marked by inflammation of the NASAL MUCOSA; the PHARYNX; and conjunctiva, and by headache and severe, often generalized, myalgia. Grippe,Human Flu,Human Influenza,Influenza in Humans,Influenza,Flu, Human,Human Influenzas,Influenza in Human,Influenzas,Influenzas, Human
D007252 Influenza Vaccines Vaccines used to prevent infection by viruses in the family ORTHOMYXOVIRIDAE. It includes both killed and attenuated vaccines. The composition of the vaccines is changed each year in response to antigenic shifts and changes in prevalence of influenza virus strains. The flu vaccines may be mono- or multi-valent, which contains one or more ALPHAINFLUENZAVIRUS and BETAINFLUENZAVIRUS strains. Flu Vaccine,Influenzavirus Vaccine,Monovalent Influenza Vaccine,Universal Flu Vaccine,Universal Influenza Vaccine,Flu Vaccines,High-Dose Trivalent Influenza Vaccine,Influenza Vaccine,Influenza Virus Vaccine,Influenza Virus Vaccines,Influenzavirus Vaccines,Intranasal Live-Attenuated Influenza Vaccine,LAIV Vaccine,Monovalent Influenza Vaccines,Quadrivalent Influenza Vaccine,Trivalent Influenza Vaccine,Trivalent Live Attenuated Influenza Vaccine,Universal Flu Vaccines,Universal Influenza Vaccines,Flu Vaccine, Universal,High Dose Trivalent Influenza Vaccine,Influenza Vaccine, Monovalent,Influenza Vaccine, Quadrivalent,Influenza Vaccine, Trivalent,Influenza Vaccine, Universal,Intranasal Live Attenuated Influenza Vaccine,Vaccine, Flu,Vaccine, Influenza,Vaccine, Influenza Virus,Vaccine, Influenzavirus,Vaccine, LAIV,Vaccine, Monovalent Influenza,Vaccine, Quadrivalent Influenza,Vaccine, Trivalent Influenza,Virus Vaccine, Influenza
D008081 Liposomes Artificial, single or multilaminar vesicles (made from lecithins or other lipids) that are used for the delivery of a variety of biological molecules or molecular complexes to cells, for example, drug delivery and gene transfer. They are also used to study membranes and membrane proteins. Niosomes,Transferosomes,Ultradeformable Liposomes,Liposomes, Ultra-deformable,Liposome,Liposome, Ultra-deformable,Liposome, Ultradeformable,Liposomes, Ultra deformable,Liposomes, Ultradeformable,Niosome,Transferosome,Ultra-deformable Liposome,Ultra-deformable Liposomes,Ultradeformable Liposome
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D000938 Antigen-Presenting Cells A heterogeneous group of immunocompetent cells that mediate the cellular immune response by processing and presenting antigens to the T-cells. Traditional antigen-presenting cells include MACROPHAGES; DENDRITIC CELLS; LANGERHANS CELLS; and B-LYMPHOCYTES. FOLLICULAR DENDRITIC CELLS are not traditional antigen-presenting cells, but because they hold antigen on their cell surface in the form of IMMUNE COMPLEXES for B-cell recognition they are considered so by some authors. Accessory Cells, Immunologic,Antigen-Presenting Cell,Immunologic Accessory Cells,Accessory Cell, Immunologic,Cell, Immunologic Accessory,Cells, Immunologic Accessory,Immunologic Accessory Cell,Antigen Presenting Cell,Antigen Presenting Cells,Cell, Antigen-Presenting,Cells, Antigen-Presenting
D013602 T-Lymphocytes, Cytotoxic Immunized T-lymphocytes which can directly destroy appropriate target cells. These cytotoxic lymphocytes may be generated in vitro in mixed lymphocyte cultures (MLC), in vivo during a graft-versus-host (GVH) reaction, or after immunization with an allograft, tumor cell or virally transformed or chemically modified target cell. The lytic phenomenon is sometimes referred to as cell-mediated lympholysis (CML). These CD8-positive cells are distinct from NATURAL KILLER CELLS and NATURAL KILLER T-CELLS. There are two effector phenotypes: TC1 and TC2. Cell-Mediated Lympholytic Cells,Cytotoxic T Cells,Cytotoxic T Lymphocyte,Cytotoxic T-Lymphocytes,TC1 Cell,TC1 Cells,TC2 Cell,TC2 Cells,Cell Mediated Lympholytic Cells,Cell, Cell-Mediated Lympholytic,Cell, TC1,Cell, TC2,Cell-Mediated Lympholytic Cell,Cytotoxic T Cell,Cytotoxic T Lymphocytes,Cytotoxic T-Lymphocyte,Lymphocyte, Cytotoxic T,Lympholytic Cell, Cell-Mediated,Lympholytic Cells, Cell-Mediated,T Cell, Cytotoxic,T Lymphocyte, Cytotoxic,T Lymphocytes, Cytotoxic,T-Lymphocyte, Cytotoxic
D018984 Epitopes, T-Lymphocyte Antigenic determinants recognized and bound by the T-cell receptor. Epitopes recognized by the T-cell receptor are often located in the inner, unexposed side of the antigen, and become accessible to the T-cell receptors after proteolytic processing of the antigen. T-Cell Epitopes,T-Lymphocyte Epitopes,T-Cell Epitope,T-Lymphocyte Epitope,Epitope, T-Cell,Epitope, T-Lymphocyte,Epitopes, T Lymphocyte,Epitopes, T-Cell,T Cell Epitope,T Cell Epitopes,T Lymphocyte Epitope,T Lymphocyte Epitopes
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