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 PDFInfo
- 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
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
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。
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1755668A2 (en) * | 2004-05-07 | 2007-02-28 | Hans-Gustaf Ljunggren | Adjuvants |
-
2013
- 2013-07-26 CN CN2013103208115A patent/CN103386129A/zh active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1755668A2 (en) * | 2004-05-07 | 2007-02-28 | Hans-Gustaf Ljunggren | Adjuvants |
Non-Patent Citations (2)
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)
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 |