摘要
目的探讨鼻腔联合应用可溶性白细胞介素5受体α(soluble interleukin 5 receptor alpha,sIL-5Rα)及sIL-13Rα2对变应性鼻炎(allergic rhinitis,AR)大鼠血管细胞黏附分子1(vascular cell adhesion molecule1,VCAM-1)和γ干扰素(interferon gamma,IFN-γ)水平的影响。方法将Wistar大鼠50只以随机数字表法随机分为A组(对照组)、B组(AR组)、C组(sIL-5Rα治疗组)、D组(sIL-13Rα2治疗组)及E组(sIL-5RoL联合sIL-13Rα2治疗组,简称联合治疗组)。AR组及各治疗组用卵清蛋白(ovalbumin,OVA)和氢氧化铝致敏,用OVA激发,建立大鼠AR模型,对照组用生理盐水代替。其中sIL-5Rα治疗组、sIL-13Rα2治疗组及联合治疗组在第31~38天,于激发前30min每只大鼠每日每侧鼻腔分别滴入100μg sIL-5Rα、100μg sIL-13Rα2、sIL-5Rα及sIL-13Rα2各100μg,AR组则于激发前30min滴入磷酸盐缓冲液50αμl。比较各组大鼠血清及鼻腔灌洗液中VCAM-1、IFN-γ水平的变化。以SPSS17,0软件进行统计学分析。结果B组血清及鼻腔灌洗液中VCAM-1含量较A组明显升高(P值均〈0.01),而IFN-γ含量明显降低(P值均〈0.叭);C、D、E组血清及鼻腔灌洗液中VCAM.1含量较B组明显降低(P值均〈0.01),而IFN-γ的含量明显升高(P值均〈0.01);E组血清及鼻腔灌洗液中VCAM-1含量[分别为(283.5±5.7)μg/L、(101.8±4.8)μg/L]分别较c[分别为(311.5±12.6)μg/L、(133.9±5.8)μg/L]、D组[分别为(304.7±6.6)μg/L、(128.5±7.7)μg/L]明显降低(P值均〈0.01),而IFN-γ的含量[E组分别为(874.7±9.6)、(349.2±12.1)pg/ml;C组分别为(600.2±16.1)、(195.5±16.1)pg/ml;D组分别为(577.9±9.6)、(196.7±9.9)μg/m1]明显升高(P值均〈0.01)。结论联合应用sIL-5Rα及slL-13Rα2治疗大鼠AR,可明显降低血清及鼻腔灌洗液中VCAM-1含量,同时升高IFN-γ含量,从而达到缓解和治疗AR的目的。
Objective To investigate the effects of sIL-5Rα and sIL-13Rα2 on VCAM-1 and IFN-γ in allergic rhinitis rats. Methods A total of 50 Wistar rats were randomly divided into 5 groups : the normal group( group A) , the allergic rhinitis model group (group B ) , the sIL-5Rα treatment group (group C ), the slL-13Rα2 treatment group(group D) ,the combination of sIL-5Rα and sIL-13Rα2 treatment group( group E or the combined treatment group) . Rats in the latter 4 groups were sensitized with ovalbumin (OVA) and A1 (OH)3, and challenged with OVA to establish allergic rhinitis models, while rats in the normal group were treated with saline. Rats in the sIL-5Rα treatment group,the sIL-13Rα2 treatment group and the combined treatment group were absorbed on day 31 to day 38 once daily once nasal cavity with sIL-5Rα( 100 μg) , sIL-13RoL2 ( 100 μg) and the combination of sIL-5Rα( 100 αg) and sIL-13Rα2 ( 100 μg) 30 min before challenged,while rats in the allergic rhinitis model group received PBS(50μl). Then the levels of VCAM-1 and IFN-γin serum and nasal lavage fluid (NLF) were measured by ELISA. Results Compared with the normal group, the levels of VCAM-1 in the allergic rhinitis model group were higher, while IFN-γ were lower (all P 〈 0. 01 ). Compared with the allergic rhinitis model group, the sIL-5Rα treatment group, the sIL- 13Rα2 treatment group and the combined treatment group could effectively reduced serum and NLF VCAM-1 level [group E: (283.5±5.7) μg/L, (101.8±4.8) μg/L; group C: (311.5±12.6) μg/L, (133.9-± 5.8 )μg/L ; group D : ( 304.7 ±6.6 )μg/L, ( 128.5± 7.7 ) μg/L], and increased IFN-γ level [ group E : (874.7±9.6) pg/ml, (349.2±12.1) pg/ml; group C: (600.2±16.1) pg/ml, (195.5±16.1) pg/ ml; group D: (577. 9± 9. 6) pg/ml, ( 196. 7 ±9. 9) pg/ml ] ; compared with single treatment, the combined treatment group also had significant differences ( P 〈 0. 01 ). Conclusions Combined treatment with sIL-5Rα and sIL-13RαL2 to treat the allergic rhinitis rats can significantly reduce VCAM-1 levels in serum and NLF, and increase IFN- γlevels, thus, to achieve the purpose of mitigation and treatment of allergic rhinitis.
出处
《中华耳鼻咽喉头颈外科杂志》
CAS
CSCD
北大核心
2012年第8期638-641,共4页
Chinese Journal of Otorhinolaryngology Head and Neck Surgery