PMID- 19660589 OWN - NLM STAT- MEDLINE DCOM- 20091021 LR - 20090914 IS - 1873-2518 (Electronic) IS - 0264-410X (Linking) VI - 27 IP - 42 DP - 2009 Sep 25 TI - Liposomal Ag engrafted with peptides of sequence derived from HMGB1 induce potent Ag-specific and anti-tumour immunity. PG - 5846-54 LID - 10.1016/j.vaccine.2009.07.053 [doi] AB - High-mobility group box 1 (HMGB1) protein is a nuclear binding protein which is released by monocytes and macrophages and is a potent maturation signal for dendritic cells (DCs). Synthetic HMGB1-related peptides are reported to be potent DC stimulants. Two HMGB1-related peptides, denoted as pHMGB-89 and pHMGB-106, were explored for their ability to enhance the immunogenicity of Ag-containing liposomes. pHMGB-engrafted liposomes targeted murine CD11c(+) and CD11b(+) cells in vitro and in vivo. Vaccination of mice with OVA-containing liposomes engrafted with pHMGB-89 and pHMGB-106 induced OVA-specific T cell priming and production of IgG(1), IgG(2a) and IgG(2b) antibodies. Importantly, vaccination of mice with B16-OVA-derived plasma membrane vesicles (PMVs) engrafted with pHMGB-89 and pHMGB-106 inhibited tumour growth and metastasis, in syngeneic mice challenged with highly metastatic B16-OVA melanoma. The results show that vaccination with Ag-containing liposomes/PMVs engrafted with HMGB1 peptides could be an effective approach for developing novel vaccines and cancer immunotherapies. FAU - Faham, Abdus AU - Faham A AD - Biochemistry and Molecular Biology, Research School of Biology, ANU College of Medicine, Biology and Environment, The Australian National University, Canberra, ACT, 0200, Australia. FAU - Bennett, David AU - Bennett D FAU - Altin, Joseph G AU - Altin JG LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20090804 PL - Netherlands TA - Vaccine JT - Vaccine JID - 8406899 RN - 0 (Antibodies, Neoplasm) RN - 0 (Antigens, Neoplasm) RN - 0 (Cancer Vaccines) RN - 0 (HMGB1 Protein) RN - 0 (Liposomes) RN - 82115-62-6 (Interferon-gamma) SB - IM MH - Animals MH - Antibodies, Neoplasm/blood/immunology MH - Antigen Presentation MH - Antigens, Neoplasm/immunology MH - CD8-Positive T-Lymphocytes/immunology MH - Cancer Vaccines/*immunology MH - Dendritic Cells/*immunology MH - Female MH - HMGB1 Protein/*immunology MH - Interferon-gamma/immunology MH - Liposomes/*immunology MH - Lymphocyte Activation MH - Melanoma, Experimental/immunology/prevention & control MH - Mice MH - Mice, Inbred C57BL MH - Mice, Transgenic MH - Spleen/cytology/immunology EDAT- 2009/08/08 09:00 MHDA- 2009/10/22 06:00 CRDT- 2009/08/08 09:00 PHST- 2009/05/15 00:00 [received] PHST- 2009/07/13 00:00 [revised] PHST- 2009/07/18 00:00 [accepted] PHST- 2009/08/08 09:00 [entrez] PHST- 2009/08/08 09:00 [pubmed] PHST- 2009/10/22 06:00 [medline] AID - S0264-410X(09)01085-8 [pii] AID - 10.1016/j.vaccine.2009.07.053 [doi] PST - ppublish SO - Vaccine. 2009 Sep 25;27(42):5846-54. doi: 10.1016/j.vaccine.2009.07.053. Epub 2009 Aug 4.