TW570803B - Influenza vaccine - Google Patents
Influenza vaccine Download PDFInfo
- Publication number
- TW570803B TW570803B TW087104913A TW87104913A TW570803B TW 570803 B TW570803 B TW 570803B TW 087104913 A TW087104913 A TW 087104913A TW 87104913 A TW87104913 A TW 87104913A TW 570803 B TW570803 B TW 570803B
- Authority
- TW
- Taiwan
- Prior art keywords
- surface antigen
- dna
- patent application
- influenza virus
- enzyme
- Prior art date
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Classifications
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N7/00—Viruses; Bacteriophages; Compositions thereof; Preparation or purification thereof
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- C07K14/005—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from viruses
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K39/00—Medicinal preparations containing antigens or antibodies
- A61K39/12—Viral antigens
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K39/00—Medicinal preparations containing antigens or antibodies
- A61K39/12—Viral antigens
- A61K39/145—Orthomyxoviridae, e.g. influenza virus
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
- A61P31/12—Antivirals
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
- A61P31/12—Antivirals
- A61P31/14—Antivirals for RNA viruses
- A61P31/16—Antivirals for RNA viruses for influenza or rhinoviruses
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P37/00—Drugs for immunological or allergic disorders
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K39/00—Medicinal preparations containing antigens or antibodies
- A61K2039/51—Medicinal preparations containing antigens or antibodies comprising whole cells, viruses or DNA/RNA
- A61K2039/525—Virus
- A61K2039/5252—Virus inactivated (killed)
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N2760/00—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA ssRNA viruses negative-sense
- C12N2760/00011—Details
- C12N2760/16011—Orthomyxoviridae
- C12N2760/16034—Use of virus or viral component as vaccine, e.g. live-attenuated or inactivated virus, VLP, viral protein
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N2760/00—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA ssRNA viruses negative-sense
- C12N2760/00011—Details
- C12N2760/16011—Orthomyxoviridae
- C12N2760/16051—Methods of production or purification of viral material
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N2760/00—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA ssRNA viruses negative-sense
- C12N2760/00011—Details
- C12N2760/16011—Orthomyxoviridae
- C12N2760/16111—Influenzavirus A, i.e. influenza A virus
- C12N2760/16134—Use of virus or viral component as vaccine, e.g. live-attenuated or inactivated virus, VLP, viral protein
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N2760/00—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA ssRNA viruses negative-sense
- C12N2760/00011—Details
- C12N2760/16011—Orthomyxoviridae
- C12N2760/16211—Influenzavirus B, i.e. influenza B virus
- C12N2760/16234—Use of virus or viral component as vaccine, e.g. live-attenuated or inactivated virus, VLP, viral protein
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Virology (AREA)
- Medicinal Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Organic Chemistry (AREA)
- Pharmacology & Pharmacy (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Immunology (AREA)
- Microbiology (AREA)
- Engineering & Computer Science (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Genetics & Genomics (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Mycology (AREA)
- Epidemiology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Pulmonology (AREA)
- Biochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Biotechnology (AREA)
- Biomedical Technology (AREA)
- General Engineering & Computer Science (AREA)
- Molecular Biology (AREA)
- Communicable Diseases (AREA)
- Oncology (AREA)
- Gastroenterology & Hepatology (AREA)
- Biophysics (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Peptides Or Proteins (AREA)
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570803 經濟部中央標準局員工消費合作社印黧 A7 B7 五、發明説明(!) 本發明係關於由在培養之動物細胞中繁殖之流行性感冒 病毒所製備的流行性感冒病毒表面抗原疫苗,與其表面抗 原蛋白質的製備方法。 流行性感冒病毒的大小約125毫微米,以核糖核酸爲核 心,並與核蛋白(mucleopr〇tein)結合,外層由具有雙層脂 質結構的病毒外鞘(envelope)所包覆。該外鞘的内層的主 要組成爲基質蛋白(matrix pr〇tein),而外層則主要含有來 的宿主的脂質成份。 所謂的"表面蛋白"是指出現在病毒表面棘(spike )的神 經胺酸甞酶(neuraminidase ; NA )與血球凝集素(1^11^881扒· inine ; HA) 〇 大部份市面上的去活化的流行性感冒疫苗爲所謂的”分 離疫苗(split vaccines ),,或次單元疫苗。 ’·分離疫苗”的製備是以適當濃度的清潔劑將整個流行性 感冒病毒溶解,接著除去清潔劑與大部份的脂質成份。 預防流行性感冒的·•次單元疫苗’’和’’分離疫苗”不同,它 不含所有的病毒蛋白,相反的,"次單元疫苗”含有較多 在接種時可謗導特定病毒的中和性(保護性)抗體產生的表 面蛋白。 目削市面上大部份的流行性感冒疫苗是由培養在難胚的 流行性感冒病毒所製備而得的。然而,爲所公認;以雞胚 培養產生的流行性感冒病疫苗,具有許多的缺點: 1·由於每個蛋的(微)生物品質不同,此種製備方法是比 較不可靠的。 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) (請先閱讀背面之注意事項再填寫本頁) 、11 sf 570803 經濟部中央標率局員工消費合作社印製 A7 B7 五、發明説明(2 ) 2. —旦需求增加,如:嚴重的流行病或大流行此種製備 法完全沒有變通性(flexibility ),因爲它的困難在於缺 乏大量可適用的蛋。 3. 此種製備法產生的疫苗對於那些對難或難蛋的蛋白質 會產生過敏的人,是禁忌使用的。 解決以上問題的方法也許可借助組織培養來繁衍流行性 感冒病毒,組織培養的方法具有許多優點: 1·組織培養細胞株可由無(微)生物污染的公認細胞庫系 統中取得,因此可大幅改善批次的一致性(batch_t〇_ batch consistency),並可獲得高品質的產物。 2·如果發生嚴重流行病或大流行時,較有可能提供足夠 的疫苗。 3.最後得到的流行性感冒病毒成份將更適用於其它的給 藥方式(口服,鼻用,吸入)。 4·從世界衛生組織(WHO )的觀點看來:此項技術將可延 長每年的疫苗組成更改(從二月中至三月中),增加疫 苗與循環中的病毒株的對抗力。 然而,以組織培養的方式取得流行性感冒病也有一項嚴 重的問題,那就是疫苗中可能出現同一宿主細胞株的遺傳 物質。 此問題如果沒有設法補救,則其潛藏的危機可能導致有 關當局基於安全考量拒絕此種流行性感冒疫苗申請上市的 請求。例如,美國食品藥物管理局要求針對人類使用的生 物科技產物每劑量不可含超過100微微克的宿主細胞 •------1T------. (請先閱讀背面之注意事項再填寫本頁) -5- 570803 經濟部中央標苹局員工消費合作社印製 A7 B7 五、發明説明(3 ) DNA 〇 因此,本發明提供一種製備流行性感冒疫苗表面抗原的 方法,其中該表面抗原是作爲疫苗使用,此種方法所製備 的疫苗是安全的,並不含無法接受量的有害遣傳物質,且 符合有關當局的要求。然而,在過去想要製備含宿主細胞 DNA低於1〇〇微微克/每劑量的流行性感冒疫苗一直被認 爲是奢望並令人驚I牙的。 所以’本發明係關於一流行性病毒表面抗原疫苗,該疫 苗是由經動物細胞繁殖而得的流行性感冒病毒製備而得 的,而且其中所含的宿主細胞DNA量等於或低於每劑量 25微微克。 在一特定具代表性實例中,本發明提供一種製備表面抗 原蛋白的方法,其中該表面抗原蛋白是用於製備含低量 DNA的流行性感冒疫苗,而這種流行性感冒病毒是由動 物細胞繁殖而得的。本方法含有下列步驟: a·以DNA分解酵素處理得自細胞培養物之含完整病毒之 液體,並且 b.添加陽離子清潔劑。 隨後,分離表面抗原蛋白質。 本發明的方法可應用於不同的流行性感冒病毒疫苗的生 產’典型的病毒包括人類流行性感冒,豬流行性感冒,馬 流行性感冒與禽流感。 本發明的動物細胞培養包括初級細胞,如:雞胚纖維織 母細胞(CEF)或永久細胞株,如馬汀黛比貓腎細胞 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) (請先閱讀背面之注意事項再填寫本頁) 、-口 ώψ. 570803 五、發明説明( (MDCK)中國倉鼠卵細胞(CH〇)與維羅(Ver〇)細胞。 DNA分解酵素分解具完整病毒體之培養液的過程可直接 在發酵槽中進行,最好是在細胞培養與病毒增殖的過程中 進行。 ,適合的DNA分解酵素爲DNA分解酶(DNase)(酵素編號 爲 121與五。3.1.22)與核酸酵素(1111(:16犯6)(酵素編號 爲 ’· EC 3.1.30 與EC 3.1.31)。 根據本發明,適合的陽離子性清潔劑最好爲含有下列化 學式的化合物 RN VR3 Λ x 一 其中 Ri,R2與 R 或及1與112 爲相同或不同,並且爲烷基或芳基, 與其所附接之氮原子結合形成5或6員飽 和雜環, 爲烷基或芳基, 經濟部中央標率局員工消費合作社印繁 或與&與其所附接之氮原子結合形成5或6員雜 環’其中不飽和位置在氮原子上, R4 爲烷基或芳基,且 X 爲陰離子。 陽離子清潔劑的實例包括鯨蠟基三甲基銨鹽,如:鯨蠟 基三甲基銨化溴(C.T.A.B.),與肉菫蔻基三甲基銨鹽。合 適的β潔劑還包括力玻菲叮(Hp〇fectine),力玻菲他命 經濟部中央標準局員工消費合作社印製 570803 A7 B7 五、發明説明(5 ) (lipofectamine ),DOTMA 0 這些陽離子清潔劑最好與非離子性清潔劑一起使用, 如:吐溫(Tween)。 凊潔劑處理後的表面抗原蛋白分離步驟可包括: 1 ·利用離心,或超高速離心將RNP顆粒(體)從表面抗原 蛋白中分離,且 2.利用清潔劑與特定樹脂(如:安伯萊特(Amberlite) XAD-4)間的厭水性相互作用,且/或超(透)過濾 (ultra(dia)filtration)將清潔劑從表面抗原蛋白中分離。 很令人驚訝地,本發明方法所得的產物,其中所含的動 物細胞DNA量是非常低的。DNA濃度可低至2 5毫微克/劑 量,並且很容量的可獲得低至10毫微克/劑量。 表面抗原蛋白可再經處理,以供製備流行性感冒疫苗使 用,這些處理包括:添加緩衝液(如:PBS ),且/或與其 它血清型的流行性感冒病毒一起混合。 表面抗原蛋白的濃度最好符合疫苗製備的要求。 實例1 A.病毒的增殖 1·在發酵槽中,將具有抗原型B/亞瑪加塔(Yamagata)之 流行性感冒病毒加入馬汀黛比貓腎(MDCK)細胞 (ATCC CCL34)中,於35。(:下培養2天,令病毒增殖。 2.然後,加入稀釋的氫氧化鈉以調高ρη値至8.0,並加 入班容(Benzon)核分解酶至終濃度爲每公升1〇〇〇單位 (1微克)。 -8- 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公董) (讀先閱讀背面之注意事項再填寫本頁) ,ιτ 570803 A7 Β7 五、發明説明(6 ) 3. 在35°C下,作用4小時。 B · 病毒的分離 1·以濾孔大小爲0.5微公分的厚濾紙將培養液過濾,去除 細胞破片。 2·接著,使用可阻斷分子量300,000以上通過的過濾膜, 並藉由超高速離心將流行性感冒病毒濃縮及純化。 3·加入曱醛至最終濃度爲〇·〇15% (重量百分比;w/v) 後,再將庶糖加入至終濃度爲30% (w/v),然後將此混 合物置於2-8°C下攪拌72小時。 4. 接下來以磷酸緩衝食鹽液將濃縮的病毒稀釋五倍,並 置入含有阿美空(Amicon)塞絡芬(Cellufine)硫酸鹽的 親和性管柱中。以磷酸緩衝食鹽液清洗,去除雜質 後,以含有1.5莫耳氣化鈉濃度的磷酸缓衝食鹽液沖提 病毒,以可阻斷分子量30〇5〇〇〇以上的過濾膜,藉由超 而速離心將冲提液濃縮並且脱鹽(desalted )。 C.次單元的分雌 經濟部中央標準局員工消費合作社印製 (請先閱讀背面之注意事項再填寫本頁} -訂· 1·加入非離子性清潔劑吐溫_8〇至終濃度爲3〇〇微克/亳升 與溴化鯨基三甲基氨至終濃度爲750微克/毫升,接著 將此混合物置於4。(:下攪拌3小時後,藉由離心方式, 將RNP顆粒從表面抗原蛋白中分離出。 2·上層液與安伯萊特χΑΙ)·4 一起置於2_8。〇下隔夜攪拌以 去除β潔劑’以過濾方式將安伯菜特去除過濾液,緊 ^接著,以0.22微米的濾膜進行無菌過濾。 經過以上的處理,可使用有效的測試法來分析樣本中的 9- 570803 A7 B7 五、發明説明(7 ) 宿主細胞DNA的含量,該方法是使用32P-標定的貓DNA探 針,進行空位轉潰雜交(slot blot hybridisation )。 經過不同步驟處理後的DNA含量分析結果列於下列表格 中(在表格中,每個IVV劑量的DNA含量以每50微克HA 中含微微克(picogram )作爲代表。 表格 樣本 DNA含量 處理後 培養液48 hpi 19,000,000 A1 核分解酶處理後的培養液 370,000 A2 前過濾後的培養液 10,000 B1 超南速離心後的濃縮液 4350 B2 去活化並經親和性層析的滤液 4200 B4 經吐溫/C.T.A.B.處理與離心後的濾液 <25 C1 去除清潔劑後的濾液 <25 C2 實例2 在實例1中,病毒的增殖,純化,去活化與分解受到影 響。 經濟部中央標準局員工消費合作社印繁 (請先閱讀背面之注意事項再填寫本頁) 在病毒增殖的最後幾小時内(步驟A 2與A 3 ),以班容核 分解酶處理培養液,該核分解酶在增殖培養液的p Η値範 圍下作用(步驟A 1 ),可得到預期DNA去除的類似結果。 雖然核酸分解酶1需要較高的濃度,但是它在去除宿主 細胞DNA (步驟A1_A3 )是一樣有效的。其它的核酸内切酶 (endonuclease )也可得到類似的結果。 -10- 本紙張尺度適用中國國家標準(CNS ) A4規格(210X 297公釐) 經濟部中央標準局員工消費合作社印繁 570803 A7 B7_ 五、發明説明(8 ) 實例3 除了以離心方式來去除細胞破片(步驟B 1 )外,其它的 步驟依照實例1或2。 實例4 除了以持續流動區帶離心機(continuous flow zonal centrifuge)如:Electro-Nucleonics (RK型),與庶糖梯度 如:以璘酸缓衝食鹽液配製,將培養液中的病毒濃縮與純 化(步驟B 2)外,其它的步驟依照實例1,2,或3。 實例5 除了以溴化歸基p比淀,溴化肉苴蔻基氨,氣化二異丁基 苯氧基乙氧基二甲基苯基氨(benzetonium chloride ),氯化 甲基二異丁基苯氧基乙氧基二曱基苯基氨,氣化十甲鑌 (decamethonium chloride ),或硬脂疏基二甲基苯基錄化溴 溶液來取代鯨蠟基三甲基銨化溴溶液,其它的步驟依照實 例1至4。可得到.預期宿主細胞DNA去除的類似結果。 實例6 除了親和性層析後加入蔗糖,共且加入甲酸至〇 〇5% (重量百分率濃度),作用最長爲120小時,其它步驟依照 實例1。 實例7 根據實例1,2,3,4與6的方法已成功的應用於製備 DNA含量低的B/哈賓(Harbin),B/巴拿馬(Panama),A/ 德州(Texas H1N1),A/臺灣(H1N1),A/約翰尼斯堡 (H3N2)與A/武漢(H3N2)等型的流行性病毒感冒疫苗。 -11 - 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) (請先閱讀背面之注意事項再填寫本頁)
Claims (1)
- 570803 第087104913號專利申請案 中文_請專利範圍替換本(92年10 ^J) A8 B8 C8 申請專利範園 1. -種流行性感冒病毒表面抗原疫苗,此疫苗是由流行性 感冒病毒㈣物細胞培養物上繁殖製得,其包括 驟: a·以DNA分解酵素處理得自么 、、、 目肩胞培養物的含完整病毒 之液體,且該DNA分解酵夸杨、联△丄從主 肝砰京係選自由酵素編號為E C 3I2UEC 3.K2uDNase與酵素編號為π 3· 1.3 0及EC 3.1.3 1之核酸酵素所組成之群; b.添加陽離子性清潔劑,並士 乎W 具王要係如下通式化合物所 組成: Ra X R4 其中 R!,R2與R3為相同或不同,且各為烷基或芳基, 或心㈣與其所附接之氮原子結合形成…員飽和雜 環,且R3為烷基或芳基, 或κ,r々r3與其所附接之氮原子結合形成5或6員雜 環’且不飽和處在氮原子上, R4為烷基或芳基,且 X為陰離子; c.分離表面抗原蛋白質,其係利用離心或超過滤法將 RNP顆粒(體)自表面抗原蛋白質中分出,接著利用 清潔劑與適當樹脂間的厭水性相互作用,及/或利用 超過濾法,將清潔劑自表面抗原蛋白質中分出; 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公复) A BCD 570803 、申請專利範圍 3. 且其宿主細胞DNA含量等於或低於每劑量2 5微微克。 2.根據申請專利範圍第1項之流行性感冒病毒表面抗原疫 苗,其中宿主細胞DNA含量低於每劑量1 〇微微克。 一種在動物細胞培養物上繁殖流行性感冒病毒來製備表 面抗原蛋白質的方法,其包括下列步驟: a.以DNA分解酵素處理得自細胞培養物的含完整病毒 之液體,且該D N A分解酵素係選自由酵素編號為E c 3.1.21及EC 3.1.22之DNase與酵素編號為ec 3.1.30及EC 3.1.31之核酸酵素所組成之群;b. 添加陽離子性清潔劑,其主要係如下通式化合物所 組成: Ri\ Λ 其中Ri,R2與R3為相同或不同,且各為烷基或芳基,或 RAR2與其所附接之氮料結合形成5或6員飽和雜環, 且R3為烷基或芳、基, ,认’ MR3與其所附接之氮原子結合形成5或6員雜 環’且不飽和處在氮原子上, R4為烷基或芳基,且 X為陰離子; C.L=抗原蛋白質,其係利用離心或超過滤法將 ㈣顆粒(體)自表面抗原蛋白質中分出,接著利用 清潔劑與適當樹脂間的厭水性相互作用,及/或利用 -2 - I紙張尺度適财_^^s) Α4_·χ297公 570803 A8 B8 C8超過濾法,將清潔劑自表面抗原蛋白質中分出。 屯根據申請專利範圍第3項之方法,其中dna分解酵素的 處理係於流行性感冒病毒在細胞培養物上繁殖時進行。 5·根據巾請專利範m第3項的方法,丨中陽離子性清潔劑 主要包含鯨蠟基三甲基銨化溴。 6. 根據申請專利範圍第3項的方法,丨中陽離子性清潔劑 中補充了非離子性清潔劑。 7. 根據申請專利範圍第3項的方法,其中流行性感冒病毒 在動物細胞株上繁殖。 8. 根據申請專利範圍第3項的方法,其中流行性感冒病毒 在MDCK細胞上繁殖。 -3 -本紙張尺度適用中國國家標準(CNS) Α4規格(210 X 297公釐)
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