PMID- 10692034 OWN - NLM STAT- MEDLINE DCOM- 20000315 LR - 20240322 IS - 0019-2805 (Print) IS - 1365-2567 (Electronic) IS - 0019-2805 (Linking) VI - 99 IP - 2 DP - 2000 Feb TI - Inhibition of immunoglobulin E response to Japanese cedar pollen allergen (Cry j 1) in mice by DNA immunization: different outcomes dependent on the plasmid DNA inoculation method. PG - 179-86 AB - To develop a new immunotherapy for Japanese cedar (Cryptomeria japonica; CJ) pollinosis, we evaluated the use of DNA immunization by inoculating mice with plasmid DNA encoding Cry j 1 as a CJ pollen major allergen (pCACJ1). Repeated intramuscular (i.m.) inoculation of BALB/c mice with pCACJ1 produced anti-Cry j 1 antibody responses, which were predominately of the immunoglobulin G2a (IgG2a) type. Furthermore, this inoculation suppressed immunoglobulin E (IgE) and IgG1 antibody responses to subsequent alum-precipitated Cry j 1 injections. Splenic T cells isolated from mice inoculated with pCACJ1 i.m. secreted interferon-gamma (IFN-gamma), but not interleukin (IL)-4, in vitro upon stimulation with Cry j 1 as well as with p277-288, a peptide corresponding to the T-cell epitope of Cry j 1. In contrast, inoculation of BALB/c mice with pCACJ1 by gene gun injection caused response predominantly of the IgG1 type, and enhanced production of anti-Cry j 1 IgE antibodies to subsequent alum-precipitated Cry j 1 injections. Splenic T cells isolated from pCACJ1-innoculated mice by gene gun injection secreted both IFN-gamma and IL-4 in vitro, upon stimulation with Cry j 1 as well as with p277-288. These findings suggest that i.m. inoculation with pCACJ1 effectively elicits Cry j 1-specific T helper 1 (Th1)-type immune responses, resulting in inhibition of the IgE response to Cry j 1. FAU - Toda, M AU - Toda M AD - Department of Immunology, AIDS Research Center and Infectious Disease Surveillance Center, National Institute of Infectious Diseases, Tokyo, Japan. FAU - Sato, H AU - Sato H FAU - Takebe, Y AU - Takebe Y FAU - Taniguchi, Y AU - Taniguchi Y FAU - Saito, S AU - Saito S FAU - Inouye, S AU - Inouye S FAU - Takemori, T AU - Takemori T FAU - Sakaguchi, M AU - Sakaguchi M LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Immunology JT - Immunology JID - 0374672 RN - 0 (Allergens) RN - 0 (Antigens, Plant) RN - 0 (Cry j I protein, Cryptomeria japonica) RN - 0 (Plant Proteins) RN - 0 (Vaccines, DNA) RN - 37341-29-0 (Immunoglobulin E) SB - IM MH - Allergens/*immunology MH - Animals MH - Antigens, Plant MH - Biolistics MH - Cell Culture Techniques MH - Desensitization, Immunologic/*methods MH - Female MH - Immune Tolerance MH - Immunization/methods MH - Immunoglobulin E/*biosynthesis MH - Injections, Intramuscular MH - Mice MH - Mice, Inbred BALB C MH - Plant Proteins/*immunology MH - Pollen/*immunology MH - Th1 Cells/immunology MH - Th2 Cells/immunology MH - Vaccines, DNA/*administration & dosage/therapeutic use PMC - PMC2327145 EDAT- 2000/02/26 09:00 MHDA- 2000/03/18 09:00 PMCR- 2001/02/01 CRDT- 2000/02/26 09:00 PHST- 2000/02/26 09:00 [pubmed] PHST- 2000/03/18 09:00 [medline] PHST- 2000/02/26 09:00 [entrez] PHST- 2001/02/01 00:00 [pmc-release] AID - imm935 [pii] AID - 10.1046/j.1365-2567.2000.00935.x [doi] PST - ppublish SO - Immunology. 2000 Feb;99(2):179-86. doi: 10.1046/j.1365-2567.2000.00935.x.