PMID- 9316645 OWN - NLM STAT- MEDLINE DCOM- 19971027 LR - 20220330 IS - 0098-4108 (Print) IS - 0098-4108 (Linking) VI - 52 IP - 3 DP - 1997 Oct 24 TI - Comparison of the effects of various fine particles on IgE antibody production in mice inhaling Japanese cedar pollen allergens. PG - 231-48 AB - The adjuvant effects of various fine particles [Kanto loam dust, fly ash, carbon black, diesel exhaust particles (DEP), and aluminum hydroxide (alum)] on immunoglobulin E (IgE) antibody production in female BDF1 mice were examined. In experiment 1, animals both received 25 micrograms of each particle intranasally and were exposed to aerosolized Japanese cedar pollen allergens (JCPA) for 30 min/d at 1-wk intervals for the first 8 wk. This was followed by exposure for 30 min every 3 wk for the next 9 wk. As parameters of allergic rhinitis, measurements were made of JCPA-specific IgE and IgG antibody titers, the protein-adsorbing capacity of each type of particle, and nasal rubbing movements. The increases in anti-JCPA IgE and IgG antibody production in mice treated with aerosolized JCPA plus respective particles were significantly greater than that found with aerosolized JCPA alone. This was associated with no marked differences in the other allergic rhinitis parameters. In experiment 2, after the administration of particles as in experiment 1, about 160,000 grains of Japanese cedar pollen (JCP, native dry pollen) were dropped onto the tip of the nose of mice twice a week for 16 wk. Six weeks after the first immunization, the anti-JCPA IgE antibody titers of groups treated with the respective particles were greater than 1:20, whereas those of mice treated with JCP alone were 1:10. No significant differences in the anti-JCPA IgE and IgG antibody productions, nasal rubbing counts, or histopathological changes were observed after 18 wk. These results suggested the nature of the particles, their capacity to adsorb antigens, and/or their size may not be related to enhancement of IgG antibody production nor symptoms of allergic rhinitis. However, IgE antibody production seemed to occur earlier in mice treated with particles than in mice immunized with allergens alone. FAU - Maejima, K AU - Maejima K AD - Japan Automobile Research Institute, Ibaraki, Japan. kmae@jari.or.jp FAU - Tamura, K AU - Tamura K FAU - Taniguchi, Y AU - Taniguchi Y FAU - Nagase, S AU - Nagase S FAU - Tanaka, H AU - Tanaka H LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - J Toxicol Environ Health JT - Journal of toxicology and environmental health JID - 7513622 RN - 0 (Allergens) RN - 0 (Antigens, Plant) RN - 0 (Cry j I protein, Cryptomeria japonica) RN - 0 (Cry j II protein, Cryptomeria japonica) RN - 0 (Dust) RN - 0 (Immunoglobulin G) RN - 0 (Plant Proteins) RN - 0 (Vehicle Emissions) RN - 37341-29-0 (Immunoglobulin E) RN - 5QB0T2IUN0 (Aluminum Hydroxide) RN - 7440-44-0 (Carbon) SB - IM MH - Administration, Inhalation MH - Administration, Intranasal MH - Allergens/*administration & dosage/immunology MH - Aluminum Hydroxide MH - Animals MH - Antigens, Plant MH - Behavior, Animal/drug effects MH - Carbon MH - Dust MH - Female MH - Immunization MH - Immunoglobulin E/*biosynthesis MH - Immunoglobulin G/*biosynthesis MH - Japan MH - Mast Cells/immunology MH - Mice MH - Nasal Mucosa/drug effects/pathology MH - Particle Size MH - Passive Cutaneous Anaphylaxis/immunology MH - Plant Proteins/*administration & dosage/immunology MH - *Pollen MH - Rhinitis, Allergic, Perennial/immunology MH - Trees MH - Vehicle Emissions EDAT- 1997/10/08 00:00 MHDA- 1997/10/08 00:01 CRDT- 1997/10/08 00:00 PHST- 1997/10/08 00:00 [pubmed] PHST- 1997/10/08 00:01 [medline] PHST- 1997/10/08 00:00 [entrez] AID - 10.1080/00984109708984062 [doi] PST - ppublish SO - J Toxicol Environ Health. 1997 Oct 24;52(3):231-48. doi: 10.1080/00984109708984062.