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1、2402013,Vol.34,No.15食品科學(xué)※營養(yǎng)衛(wèi)生4種常見海參對小鼠腸道黏膜免疫功能的保護(hù)作用121111,*,王靜鳳111李學(xué)敏,于卿,鄭榮,左濤,曹斌斌,唐慶娟,王玉明,薛長湖(1.中國海洋大學(xué)食品科學(xué)與工程學(xué)院,山東青島266003;2.濟(jì)寧市農(nóng)業(yè)委員會,山東濟(jì)寧272019)摘要:目的:研究4種常見海參對環(huán)磷酰胺所致小鼠腸黏膜損傷的保護(hù)作用,并初步探討其保護(hù)機(jī)制。方法:70只BALB/c小鼠隨機(jī)分為7組:正常組、模型組、陽性對照組、仿刺參組、美國肉參組、梅花參組、海地瓜組。采用腹腔注射
2、環(huán)磷酰胺構(gòu)建腸道黏膜損傷小鼠模型。記錄小鼠體質(zhì)量變化情況,檢測胸腺、脾指數(shù),制備小腸切片并進(jìn)行組織學(xué)觀察,統(tǒng)計絨毛(villus)長度、隱窩(crypt)深度并統(tǒng)計兩者比值(V/C),酶聯(lián)免疫法(ELISA)檢測腸黏膜SIgA、IFN-γ、IL-4的含量并統(tǒng)計黏膜IFN-γ/IL-4,免疫印跡法(Westernblotting)檢測小腸IgA的蛋白表達(dá)量。結(jié)果:與模型組相比,4種海參均可顯著提高小鼠脾指數(shù),上調(diào)絨毛長度/隱窩深度比,改善環(huán)磷酰胺所致小鼠腸道機(jī)械屏障受損狀況;提高IFN-γ/IL-4,改
3、善Th1/Th2平衡。仿刺參與梅花參可以顯著促進(jìn)腸道SIgA的分泌,與其促進(jìn)小腸IgA表達(dá)增多有關(guān)。結(jié)論:4種常見海參均可改善環(huán)磷酰胺誘導(dǎo)的小鼠腸黏膜損傷,且以仿刺參及梅花參效果較顯著。關(guān)鍵詞:海參;環(huán)磷酰胺;腸道黏膜免疫;Th1/Th2;V/C值;SIgAProtectiveEffectofCommonSpeciesofSeaCucumbersonIntestinalMucosalImmunityinMice121111,*,WANGJing-feng1LIXue-min,YUQing,ZHENGR
4、ong,ZUOTao,CAOBin-bin,TANGQing-juan,11WANGYu-ming,XUEChang-hu(1.CollegeofFoodScienceandEngineering,OceanUniversityofChina,Qingdao266003,China;2.CommissionofAgricultureofJiningMunicipality,Jining272019,China)Abstract:Objective:Toinvestigatetheprotectivee
5、ffectandmechanismsoffourcommonspeciesofseacucumbersoncyclophosphamide(CTX)-inducedintestinalmucosadamage.Methods:Seventymicewererandomlydividedintosevengroups,includingnormalgroup,modelgroup,positivecontrolgroup,Apostichopusjaponicusgroup,Isostichopusba
6、dionotusgroup,ThelenotaananasgroupandAcaudinamolpadioideagroup.AmousemodelofintestinalmucosaldamagewasinducedbyCTXinjection.Thechangesinbodyweight,spleenindex,thymusindex,villus(V)length,crypt(C)depthandV/Cratioweredetected.SIgA,IFN-γandIL-4contentsinin
7、testinalmucosaweredetectedbyELISAandIFN-γ/IL-4ratiowascalculated.IgAproteinexpressionwasdetectedbyWesternblot.Results:Comparedwiththemodelgroup,spleenindex,V/CandIFN-γ/IL-4ratioinmiceadministeredwithseacucumbersweresignificantlyimproved.ThesecretionofSI
8、gAweredramaticallyenhancedinthemicefromApostichopusjaponicusandThelenotaananasgroupswhencomparedwiththemicefromthemodelgroup,whichwascorrelatedwiththeenhancementofIgAexpression.Conclusion:Allfourcommonspeciesofseacucumberscansign