Nothing Special   »   [go: up one dir, main page]

CN103386129A - 作为鸡新城疫低毒力活疫苗LaSota株免疫佐剂的鞭毛蛋白及其应用 - Google Patents

作为鸡新城疫低毒力活疫苗LaSota株免疫佐剂的鞭毛蛋白及其应用 Download PDF

Info

Publication number
CN103386129A
CN103386129A CN2013103208115A CN201310320811A CN103386129A CN 103386129 A CN103386129 A CN 103386129A CN 2013103208115 A CN2013103208115 A CN 2013103208115A CN 201310320811 A CN201310320811 A CN 201310320811A CN 103386129 A CN103386129 A CN 103386129A
Authority
CN
China
Prior art keywords
flagellin
newcastle disease
lasota
application
low
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2013103208115A
Other languages
English (en)
Inventor
焦新安
潘志明
王静
焦扬
张磊
孙林
李求春
陈祥
耿士忠
黄金林
殷月兰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yangzhou University
Original Assignee
Yangzhou University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yangzhou University filed Critical Yangzhou University
Priority to CN2013103208115A priority Critical patent/CN103386129A/zh
Publication of CN103386129A publication Critical patent/CN103386129A/zh
Pending legal-status Critical Current

Links

Images

Landscapes

  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)

Abstract

本发明涉及一种具有佐剂效应的鼠伤寒沙门菌鞭毛蛋白,该鞭毛蛋白在沙门菌ATCC14028s(pTrc99a-fliC-WT)菌体表面表达而提取。该鞭毛蛋白作为鸡新城疫低毒力活疫苗LaSota株免疫佐剂,可有效增强疫苗的免疫应答。

Description

作为鸡新城疫低毒力活疫苗LaSota株免疫佐剂的鞭毛蛋白及其应用
技术领域
本发明涉及一种鞭毛蛋白作为鸡新城疫低毒力活疫苗LaSota株免疫佐剂,可有效增强疫苗的免疫应答。
背景技术
新城疫是由新城疫病毒(Newcastle disease virus,NDV)引起的一种禽类急性高度接触性传染病,严重威胁着养禽业。一般使用灭活苗和弱毒苗进行免疫预防,效果确实,在疾病的防控中发挥巨大的作用。
鞭毛蛋白是细菌鞭毛的主要结构蛋白,由4个球形结构域(D0,D1,D2和D3)构成,其中D0和D1结构域高度保守。胞外鞭毛蛋白被TLR5分子识别后,通过接头蛋白MyD88活化下游分子,最终激活NF-κB信号通路,在转录水平上调节多种前炎性因子基因的表达。研究表明,鞭毛蛋白作为固有免疫的诱导剂,诱导产生的固有免疫应答可启动针对外源抗原的获得性免疫应答,显示出鞭毛蛋白作为免疫佐剂的效应(Mizel SB,Bates JT.Flagellin as an adjuvant:cellular mechanisms and potential.The Journal of Immunology,2010,185(10):5677-5682)。最近研究显示,以沙门菌鞭毛蛋白作为佐剂,与禽流感病毒颗粒联合免疫后,可促进鸡产生更强的黏膜免疫应答(Chaung HC,Cheng LT,Hung LH,Tsai PC,Skountzou I,Wang B,Compans RW,Lien YY.Salmonella flagellin enhances mucosal immunity of avian influenza vaccine in chickens.Veterinary Microbiology,2012,157(1-2):69-77)。本实验室构建出沙门菌ATCC14028s(pTrc99a-fliC-WT),采用酸裂解提取该菌的鞭毛蛋白,与OVA混合免疫6-8周龄雌性C57BL/6小鼠,可提高OVA特异性抗体的水平(《一种可用作免疫佐剂的改良型鞭毛蛋白及其制备与应用》,中国专利申请,公开号:CN103044530A)。
发明内容
本发明的目的是将鞭毛蛋白作为一种佐剂,添加到商品化的鸡新城疫低毒力活疫苗LaSota株中,增强机体的免疫应答。
本发明所述的鞭毛蛋白,是从沙门菌ATCC14028s(pTrc99a-fliC-WT)中提取。宿主菌经IPTG诱导后,可在细菌表面长出重组鞭毛。经酸裂解法提取,可得到高纯度的野生型鞭毛蛋白(FliC),与商品化的鸡新城疫低毒力活疫苗LaSota株混合后,滴鼻免疫1周龄的SPF鸡,可提高新城疫抗体水平,具有良好的疫苗免疫佐剂应用前景。
附图说明
图1.SDS-PAGE分析重组鞭毛蛋白。M.蛋白Marker;1.FliC。
图2.3免14天后血清中IgG抗体水平。
图3.3免14天后血凝抑制抗体滴度。
具体实施方式
一、沙门菌鞭毛蛋白的制备
沙门菌ATCC14028s(pTrc99a-fliC-WT)鞭毛蛋白的提取程序为:沙门菌ATCC14028s(pTrc99a-fliC-WT)单菌落接种10mL M-broth,37℃静置培养16~18h后以1:100比例将培养液转接种于500mL M-肉汤中,37℃静置培养16~18h;3000rpm离心收集细菌,PBS洗1次,20mL PBS重悬;使用1N HCl调pH至2.0,室温150rpm振荡30min裂解细菌;10000rpm,离心20min去除细菌碎片;取上清18000rpm,离心l h,去除杂质;上清用1N NaOH溶液调pH至7.2;冰浴条件下,将上清置于磁力搅拌器上缓缓加入饱和硫酸铵,至饱和度达到67%。之后,4℃过夜,15000rpm离心30min;5mL PBS重悬沉淀,在PBS缓冲液中4℃透析48h,每隔12h换一次PBS缓冲液;蛋白经SDS-PAGE分析,大小约为50KD(图1)。应用ProteoSpinTMEndotoxin Removal Maxi试剂盒去除所提取鞭毛蛋白的内毒素。
二、疫苗
商品化的鸡新城疫低毒力活疫苗LaSota株(兽药生字(2011)170262007,批号20120102),由武汉中博生物股份有限公司生产。
三、动物免疫及抗体检测
1.动物免疫
将1周龄的SPF鸡分为3组,每组8只,滴鼻免疫,共免疫3次,每次免疫间隔时间为14d。免疫剂量分别为:LaSota疫苗免疫组(0.05mL/羽),LaSota+FliC免疫组(LaSota疫苗0.05mL+FliC50μg/羽),PBS空白对照组(0.05mL/羽)。于三免后4周进行翅静脉采血,制备血清样品,检测血清中NDV特异性IgG抗体水平和血凝抑制抗体滴度。
2.血清样品NDV特异性IgG抗体检测
用ELISA检测血清样品抗体:将LaSota病毒原液稀释28倍,100μL/孔,4℃包被过夜,用0.05%PBST洗板3次后,以每孔加入200μL含有1%BSA的PBS4℃封闭过夜;同上洗板4次后,每孔加入100μL血清样品,37℃作用2h,同上洗板5次后,每孔加入1:10000稀释的兔抗鸡HRP-IgG,37℃作用1h,同上洗板6次后,OPD显色,2M H2SO4终止液,酶标仪测定OD492nm值。结果显示,三免后14d,LaSota+FliC免疫组的NDV特异性IgG抗体水平显著高于LaSota疫苗免疫组(P<0.05)(图2)。
3.血凝抑制(HI)抗体检测
根据LaSota病毒血凝价制备4单位病毒,即将病毒原液稀释29倍;于96孔微量反应板上每孔加25μL PBS;第一孔加被检血清(LaSota疫苗组、LaSota+FliC组、PBS组)25μL,混合均匀,再吸取25μL液体小心地移至第2孔,如此连续稀释至第10孔,最后第10孔吸取25μL液体弃掉;被检血清稀释倍数依次为1:2~1:1024,第12孔为红细胞对照;每孔再加入含有4单位的病毒液25μL至第11孔,第12孔为红细胞对照孔,不加病毒液;置振荡器上振荡10s后,放4℃静置30min;每孔再加入1.0%红细胞悬浮液25μL,放振荡器上振荡10s混匀,置37℃,15min后判定结果。结果显示,三免后14d,LaSota+FliC免疫组的血凝抑制抗体滴度均显著高于LaSota疫苗免疫组(P<0.05)(图3)。

Claims (2)

1.一种具有佐剂效应的鼠伤寒沙门菌鞭毛蛋白,该鞭毛蛋白在沙门菌ATCC14028s(pTrc99a-fliC-WT)菌体表面表达而提取。
2.一种鸡新城疫低毒力活疫苗免疫佐剂的应用,其特征在于,将权利1所述鞭毛蛋白以50μg的剂量与商品化的鸡新城疫低毒力活疫苗LaSota株混合后,通过滴鼻途径免疫。
CN2013103208115A 2013-07-26 2013-07-26 作为鸡新城疫低毒力活疫苗LaSota株免疫佐剂的鞭毛蛋白及其应用 Pending CN103386129A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2013103208115A CN103386129A (zh) 2013-07-26 2013-07-26 作为鸡新城疫低毒力活疫苗LaSota株免疫佐剂的鞭毛蛋白及其应用

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2013103208115A CN103386129A (zh) 2013-07-26 2013-07-26 作为鸡新城疫低毒力活疫苗LaSota株免疫佐剂的鞭毛蛋白及其应用

Publications (1)

Publication Number Publication Date
CN103386129A true CN103386129A (zh) 2013-11-13

Family

ID=49530662

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2013103208115A Pending CN103386129A (zh) 2013-07-26 2013-07-26 作为鸡新城疫低毒力活疫苗LaSota株免疫佐剂的鞭毛蛋白及其应用

Country Status (1)

Country Link
CN (1) CN103386129A (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104328136B (zh) * 2014-10-03 2018-04-17 哈尔滨博翱生物医药技术开发有限公司 鸡新城疫病毒毒株rClone30‑fliC的制备及其在鸡新城疫病防治中的应用
CN111875699A (zh) * 2020-07-03 2020-11-03 江南大学 一种提高枯草芽孢杆菌卵清蛋白表达量的方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1755668A2 (en) * 2004-05-07 2007-02-28 Hans-Gustaf Ljunggren Adjuvants

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1755668A2 (en) * 2004-05-07 2007-02-28 Hans-Gustaf Ljunggren Adjuvants

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
游猛等: "新城疫病毒F基因在大肠杆菌中的高效表达及其免疫原性分析", 《中国家禽》 *
潘志明等: "沙门菌鞭毛蛋白增强新城疫病毒融合蛋白在小鼠中的免疫原性", 《生物技术通讯》 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104328136B (zh) * 2014-10-03 2018-04-17 哈尔滨博翱生物医药技术开发有限公司 鸡新城疫病毒毒株rClone30‑fliC的制备及其在鸡新城疫病防治中的应用
CN111875699A (zh) * 2020-07-03 2020-11-03 江南大学 一种提高枯草芽孢杆菌卵清蛋白表达量的方法
CN111875699B (zh) * 2020-07-03 2022-07-05 江南大学 一种提高枯草芽孢杆菌卵清蛋白表达量的方法

Similar Documents

Publication Publication Date Title
Tamura et al. Escherichia coli heat-labile enterotoxin B subunits supplemented with a trace amount of the holotoxin as an adjuvant for nasal influenza vaccine
RU2007142337A (ru) Вакцина альфа токсоида с.perfringens
CN103421843B (zh) 编码h5n1亚型禽流感同义血凝素(ha)蛋白以及同义神经氨酸酶(na)蛋白的基因及其应用
Chou et al. Significant mucosal sIgA production after a single oral or parenteral administration using in vivo CD40 targeting in the chicken
El Naggar et al. Preparation of mucosal nanoparticles and polymer-based inactivated vaccine for Newcastle disease and H9N2 AI viruses
Music et al. Supplementation of H1N1pdm09 split vaccine with heterologous tandem repeat M2e5x virus-like particles confers improved cross-protection in ferrets
CN103386129A (zh) 作为鸡新城疫低毒力活疫苗LaSota株免疫佐剂的鞭毛蛋白及其应用
Asanuma et al. Cross-protection against influenza virus infection in mice vaccinated by combined nasal/subcutaneous administration
Ferreira et al. Comparison of single 1-day-old chick vaccination using a Newcastle disease virus vector with a prime/boost vaccination scheme against a highly pathogenic avian influenza H5N1 challenge
CN106381290B (zh) 重组欧洲禽源h1n1亚型猪流感疫苗株及其制备方法和应用
El Sayed et al. Trials for preparation and evaluation of a combined inactivated reassorted H5N1 and Escherichia coli O157 vaccine in poultry
CN102805862A (zh) 一种vero细胞培养新布尼亚病毒纯化灭活疫苗的制备方法
CN105327345A (zh) 一种疫苗佐剂以及包含该佐剂的疫苗
CN104610456A (zh) 一种 h7n9 亚型禽流感亚单位疫苗的制备方法及应用
Kumagai et al. Humoral immune response to influenza A (H1N1) pdm2009 in patients with natural infection and in vaccine recipients in the 2009 pandemic
Soltani et al. Comparison of two different methods for the extraction of outer membrane vesicles from the Bordetella pertussis as a vaccine candidate
Worrall et al. Sialivac: An intranasal homologous inactivated split virus vaccine containing bacterial sialidase for the control of avian influenza in poultry
Behrouzi et al. Evaluation of immunological responses against outer membrane vesicles (OMV) of nontypeable Haemophilus influenzae using MPLA-CpG adjuvant as a vaccine candidate
Poetri et al. Different cross protection scopes of two avian influenza H5N1 vaccines against infection of layer chickens with a heterologous highly pathogenic virus
Lin et al. Characterization of cross protection of Swine-Origin Influenza Virus (S-OIV) H1N1 and reassortant H5N1 influenza vaccine in BALB/c mice given a single-dose vaccination
Alkhalaf Serological evidence of avian paramyxovirus-2 infection in backyard and commercial poultry birds in Saudi Arabia.
Sekhavati et al. A novel method for the extraction of outer membrane vesicles (OMVs) from Bordetella pertussis Tohama strain
Li et al. Cooperative effects of immune enhancer TPPPS and different adjuvants on antibody responses induced by recombinant ALV-J gp85 subunit vaccines in SPF chickens
Ibrahim et al. Efficacy of combined vaccine against salmonellosis and infectious coryza in poultry
Barroso et al. Mice vaccination with high hydrostatic pressure-inactivated H3N8 virus protects against experimental avian flu

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20131113