PMID- 18438105 OWN - NLM STAT- MEDLINE DCOM- 20080807 LR - 20190516 IS - 1554-8619 (Electronic) IS - 1554-8600 (Linking) VI - 4 IP - 1 DP - 2008 Jan-Feb TI - A comparison of anionic nanoparticles and microparticles as vaccine delivery systems. PG - 44-9 AB - The objective of this work was to conduct an in vivo comparison of nanoparticles and microparticles as vaccine delivery systems. Poly (lactide-co-glycolide) (PLG) polymers were used to create nanoparticles size 110 nm and microparticles of size 800-900 nm. Protein antigens were then adsorbed to these particles. The efficacy of these delivery systems was tested with two protein antigens. A recombinant antigen from Neisseria meningitides type B (MenB) was administered intramuscularly (i.m.) or intraperitonealy (i.p.). An antigen from HIV-1, env glycoprotein gp140 was administered intranasally (i.n.) followed by an i.m. boost. From three studies, there were no differences between the nanoparticles and micro-particles formulations. Both particles led to comparable immune responses in mice. The immune responses for MenB (serum bactericidal activity and antibody titers) were equivalent to the control of aluminum hydroxide. For the gp140, the LTK63 was necessary for high titers. Both nanoparticles and microparticles are promising delivery systems. FAU - Wendorf, Janet AU - Wendorf J AD - Novartis Vaccines and Diagnostics, Inc., Emeryville, CA 94608, USA. FAU - Chesko, James AU - Chesko J FAU - Kazzaz, Jina AU - Kazzaz J FAU - Ugozzoli, Mildred AU - Ugozzoli M FAU - Vajdy, Michael AU - Vajdy M FAU - O'Hagan, Derek AU - O'Hagan D FAU - Singh, Manmohan AU - Singh M LA - eng PT - Journal Article DEP - 20070815 PL - United States TA - Hum Vaccin JT - Human vaccines JID - 101265291 RN - 0 (Adjuvants, Immunologic) RN - 0 (Anions) RN - 0 (Antigens, Bacterial) RN - 0 (env Gene Products, Human Immunodeficiency Virus) RN - 1SIA8062RS (Polylactic Acid-Polyglycolic Acid Copolymer) RN - 26009-03-0 (Polyglycolic Acid) RN - 33X04XA5AT (Lactic Acid) SB - IM MH - Adjuvants, Immunologic/chemistry MH - Animals MH - Anions/administration & dosage MH - Antigens, Bacterial/administration & dosage/metabolism MH - Chemistry, Pharmaceutical MH - *Drug Delivery Systems MH - Lactic Acid/administration & dosage/*chemistry MH - Mice MH - Microspheres MH - Nanoparticles/*administration & dosage MH - Neisseria meningitidis, Serogroup B/chemistry/immunology MH - Polyglycolic Acid/administration & dosage/*chemistry MH - Polylactic Acid-Polyglycolic Acid Copolymer MH - env Gene Products, Human Immunodeficiency Virus/*administration & dosage/chemistry/immunology EDAT- 2008/04/29 09:00 MHDA- 2008/08/08 09:00 CRDT- 2008/04/29 09:00 PHST- 2008/04/29 09:00 [pubmed] PHST- 2008/08/08 09:00 [medline] PHST- 2008/04/29 09:00 [entrez] AID - 4886 [pii] AID - 10.4161/hv.4.1.4886 [doi] PST - ppublish SO - Hum Vaccin. 2008 Jan-Feb;4(1):44-9. doi: 10.4161/hv.4.1.4886. Epub 2007 Aug 15.