TWI344372B - Ganglioside based vaccine compositions for subcutaneous administration - Google Patents
Ganglioside based vaccine compositions for subcutaneous administration Download PDFInfo
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- TWI344372B TWI344372B TW093104808A TW93104808A TWI344372B TW I344372 B TWI344372 B TW I344372B TW 093104808 A TW093104808 A TW 093104808A TW 93104808 A TW93104808 A TW 93104808A TW I344372 B TWI344372 B TW I344372B
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- 229960005486 vaccine Drugs 0.000 title claims description 32
- 239000000203 mixture Substances 0.000 title claims description 25
- 150000002270 gangliosides Chemical class 0.000 title claims description 23
- 238000007920 subcutaneous administration Methods 0.000 title claims description 11
- 239000002671 adjuvant Substances 0.000 claims description 23
- 239000000427 antigen Substances 0.000 claims description 5
- 102000036639 antigens Human genes 0.000 claims description 5
- 108091007433 antigens Proteins 0.000 claims description 5
- 230000028993 immune response Effects 0.000 claims description 4
- 239000006185 dispersion Substances 0.000 claims description 3
- 150000002632 lipids Chemical class 0.000 claims description 3
- 108090000623 proteins and genes Proteins 0.000 claims description 3
- 102000004169 proteins and genes Human genes 0.000 claims description 3
- 239000008187 granular material Substances 0.000 claims description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N EtOH Substances CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims 1
- 125000003047 N-acetyl group Chemical group 0.000 claims 1
- -1 acetyl GM3 gangliosides Chemical class 0.000 claims 1
- 239000002245 particle Substances 0.000 claims 1
- 206010028980 Neoplasm Diseases 0.000 description 21
- 239000000568 immunological adjuvant Substances 0.000 description 9
- 230000004083 survival effect Effects 0.000 description 9
- 241001465754 Metazoa Species 0.000 description 8
- 241000699670 Mus sp. Species 0.000 description 8
- 230000003053 immunization Effects 0.000 description 5
- 238000002649 immunization Methods 0.000 description 5
- 238000007918 intramuscular administration Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 208000023275 Autoimmune disease Diseases 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 230000001571 immunoadjuvant effect Effects 0.000 description 3
- 230000005847 immunogenicity Effects 0.000 description 3
- 238000009169 immunotherapy Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000011081 inoculation Methods 0.000 description 3
- 201000001441 melanoma Diseases 0.000 description 3
- 208000035473 Communicable disease Diseases 0.000 description 2
- 241000588650 Neisseria meningitidis Species 0.000 description 2
- 230000000890 antigenic effect Effects 0.000 description 2
- 210000004027 cell Anatomy 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000012010 growth Effects 0.000 description 2
- 230000001900 immune effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000002255 vaccination Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 206010018691 Granuloma Diseases 0.000 description 1
- 206010061218 Inflammation Diseases 0.000 description 1
- 108010052285 Membrane Proteins Proteins 0.000 description 1
- 102000018697 Membrane Proteins Human genes 0.000 description 1
- 241000588653 Neisseria Species 0.000 description 1
- 101710116435 Outer membrane protein Proteins 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 108010073443 Ribi adjuvant Proteins 0.000 description 1
- 208000025865 Ulcer Diseases 0.000 description 1
- 206010000269 abscess Diseases 0.000 description 1
- 238000010171 animal model Methods 0.000 description 1
- 230000000259 anti-tumor effect Effects 0.000 description 1
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- 238000003556 assay Methods 0.000 description 1
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- 238000006243 chemical reaction Methods 0.000 description 1
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- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000001493 electron microscopy Methods 0.000 description 1
- GIVLTTJNORAZON-HDBOBKCLSA-N ganglioside GM2 (18:0) Chemical compound O[C@@H]1[C@@H](O)[C@H](OC[C@H](NC(=O)CCCCCCCCCCCCCCCCC)[C@H](O)\C=C\CCCCCCCCCCCCC)O[C@H](CO)[C@H]1O[C@H]1[C@H](O)[C@@H](O[C@]2(O[C@H]([C@H](NC(C)=O)[C@@H](O)C2)[C@H](O)[C@H](O)CO)C(O)=O)[C@@H](O[C@H]2[C@@H]([C@@H](O)[C@@H](O)[C@@H](CO)O2)NC(C)=O)[C@@H](CO)O1 GIVLTTJNORAZON-HDBOBKCLSA-N 0.000 description 1
- 244000144993 groups of animals Species 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 230000002163 immunogen Effects 0.000 description 1
- 230000009851 immunogenic response Effects 0.000 description 1
- 229960001438 immunostimulant agent Drugs 0.000 description 1
- 239000003022 immunostimulating agent Substances 0.000 description 1
- 230000003308 immunostimulating effect Effects 0.000 description 1
- 230000002757 inflammatory effect Effects 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 230000000622 irritating effect Effects 0.000 description 1
- 231100000518 lethal Toxicity 0.000 description 1
- 230000001665 lethal effect Effects 0.000 description 1
- 238000001325 log-rank test Methods 0.000 description 1
- 210000001165 lymph node Anatomy 0.000 description 1
- 210000002540 macrophage Anatomy 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 210000002418 meninge Anatomy 0.000 description 1
- 230000004899 motility Effects 0.000 description 1
- 230000017074 necrotic cell death Effects 0.000 description 1
- 231100000344 non-irritating Toxicity 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000002559 palpation Methods 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 210000000952 spleen Anatomy 0.000 description 1
- 238000007619 statistical method Methods 0.000 description 1
- 150000003431 steroids Chemical class 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 230000004614 tumor growth Effects 0.000 description 1
Classifications
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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
- A61K39/385—Haptens or antigens, bound to carriers
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- A—HUMAN NECESSITIES
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- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K39/00—Medicinal preparations containing antigens or antibodies
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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
- A61K39/0005—Vertebrate antigens
- A61K39/0011—Cancer antigens
- A61K39/001169—Tumor associated carbohydrates
- A61K39/001171—Gangliosides, e.g. GM2, GD2 or GD3
-
- 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
- A61K39/02—Bacterial antigens
- A61K39/095—Neisseria
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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
- A61K39/39—Medicinal preparations containing antigens or antibodies characterised by the immunostimulating additives, e.g. chemical adjuvants
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/50—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates
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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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P35/00—Antineoplastic agents
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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
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- A61P37/00—Drugs for immunological or allergic disorders
- A61P37/02—Immunomodulators
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61P37/00—Drugs for immunological or allergic disorders
- A61P37/02—Immunomodulators
- A61P37/04—Immunostimulants
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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
- A61K2039/54—Medicinal preparations containing antigens or antibodies characterised by the route of administration
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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
- A61K2039/555—Medicinal preparations containing antigens or antibodies characterised by a specific combination antigen/adjuvant
- A61K2039/55511—Organic adjuvants
- A61K2039/55555—Liposomes; Vesicles, e.g. nanoparticles; Spheres, e.g. nanospheres; Polymers
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/0012—Galenical forms characterised by the site of application
- A61K9/0019—Injectable compositions; Intramuscular, intravenous, arterial, subcutaneous administration; Compositions to be administered through the skin in an invasive manner
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- Saccharide Compounds (AREA)
Description
1344372 ⑴ 玖、發明說明 【發明所屬之技術領域】 本發明關於用於皮下投服之疫苗組成物’其含有可用 於自體免疫疾病、傳染病和腫瘤之免疫治療中的神經節苷 脂,且不需任何額外之佐劑。 【先前技術】 長久以來,吾人已知自體免疫疾病和腫瘤之免疫治療 的槪念’例如:US -A-4 965 1 98專利中描述使用神經節苷脂 GM2來預防和治療這類疾病。在已提出之專利案EP-A· 661061和專利案US-A-6149921中描述使用疫苗組成物 (其主要爲免疫原和免疫佐劑)來刺激或增加對抗神經節苷 脂之抗體反應。 所描述之免疫原有:經由結合N_乙醯基GM3和N -乙 醇基G Μ 3神經節苷脂(以下記爲N _ A c G μ 3和n - G c G Μ 3 )與 來自腦膜炎奈瑟氏菌之外膜蛋白質複合物(〇ΜΡ)所構成之 VSSP(極小之蛋白脂粒)^ 以下將ϋ類免疫原稱爲N-AcGM3/ VSSP和Ν· GcGM3/ VSSP;其尺寸非常小,且在電子顯微下並無法實 際看到’可溶於水,並具增加之漂浮力。 在EP-A-661061和US-A-614992】中所描述之疫苗組 成物中必須使用佐齊!I ’如:爲人熟知之佛洛德氏不完全佐 劑。 在已提出之專利W〇-A_02】45746中描述含有下列物 (2) (2)1344372 質之疫苗組成物:(A)—或多種具低致免疫力的抗原;(B)帶 有倂入之神經節苷脂的VSSP,主要爲N-ACGM3/ VSSP和 N-GcGM3/VSSP;及(C)最後,一或多種佐劑。 在 Carr A.等人之刊載於 Melanoma Research, 2001, Vol.l], pp 219-227的論文中描述含有N-AcGM3神經節苷 脂之疫苗在帶有黑色瘤B16之小鼠體內的抗腫瘤活性。 在該篇文章中亦硏究免疫佐劑(尤其是弗洛德氏完全 佐劑或不完全之似弗洛德氏佐劑蒙塔奈(Montanide) ISA 5 1 )存在之影響。此疫苗係經由肌肉內途徑投服,其中所 得到的結論爲:以N · A c G Μ 3 / V S S P加上任一佐劑(弗袼德 氏或蒙塔奈)來免疫接種小鼠時可在第8週(表1)顯示出 IgM和IgG抗-N-AcGM3反應。相反的,不加任何佐劑之 N-AcGM3/ VSSP疫苗不會顯示出任何致免疫性反應(第 22 3頁,右欄)。 因此,該技術教示:含有結合神經節苷脂之VSSP的疫 苗應與佐劑,主要爲弗洛德氏佐劑(完全或不完全)或蒙塔 奈ISA 51,一起調配。 然而,吾人熟知:當將這類佐劑,尤其是弗洛德氏完 全佐劑,經腸胃道外之途徑投服時,將可激發某些不便之 副作用,如:在注射部位中之慢性發炎,而最後在組織中 出現肉芽腫及無菌膿腫或潰瘍性壞死。蒙塔奈I S A 5 1 雖較不具侵略性,但亦可引起某些炎症。 從在自體免疫疾病、傳染病和腫瘤之免疫治療中之用 途的觀點來看,吾人非常需要能在注射部位較不具侵略 -6- (3) (3)1344372 性,且較容易使用,並對患者較無不便的新神經節苷脂疫 苗組成物。 本發明之作者已發現當將以VSSP調配之以神經節苷 脂爲底質的疫苗經由皮下途徑投服時,其可不加佐劑使 用,且仍具有相關之免疫學性質。 本發明之目標爲包含不加任何免疫佐劑之VSSP的新 疫苗組成物,該VSSP宜爲N-ACGM3/ VSSP和N-GCGM3/ VSSP,且此新疫苗組成物係經由皮下投服。 本發明之目標還有一種用來治療需要加強其免疫反應 之患者的方法,此方法主要爲經皮下投服不含任何免疫佐 劑的神經節苷脂疫苗組成物,宜爲N-A cGM 3/ VSSP和N-GcGM3/ VSSP。 本發明之目標亦爲不含有其它與神經節苷脂不同之抗 原成分,或任何其它免疫佐劑,且係經由皮下投服的N-AcGM3/ VSSP 及 / 或 N-GcGM3/ VSSP 疫苗組成物。 【發明內容】 本發明之疫苗組成物目標主要爲將一或多種神經節苷 脂及其內含物溶解或水性分散於腦膜炎奈瑟氏菌之〇Mp 中(VSSP) ’其可經由皮下投服來刺激免疫反應,而不需加 入任何額外之免疫佐劑。 V S S P爲局度穩定之神經節苷脂與腦膜炎奈瑟氏菌外 膜蛋白質複合物之疏水結合物,其並不需要共價連結。這 類神經節苷脂-蛋白質系統詳細說明於EP-A-66】061和 (4) 1344372 US-A-614992] ’ 禾 b 不同之刊物中,如:Estdves et al·,Vaccine,1999;Vol. 18(1-2):ρρ 190·197。在這類文件 中亦描述取得它們的程序。 包含在V S S Ρ中的神經節苷脂中,較適合用於本發明 者爲 N-ACGM3 和 N-GcGM3,尤以 N-ACGM3 更佳。
此二種經結合之神經節苷脂的致免疫性及其作爲抗癌 劑和後天免疫刺激劑之用途的詳細說明可在上述文件,及 下歹1J 回顧文件:Bitton R. Et al.,Oncology Rep〇rts(2002),V〇l 9, pp 267·276,以及最近之通訊和科學 會議’如:The 6th Latin-American Congress of Immunology5which took place in Havana on December 9, 2〇〇2,此係於200年12月9曰於哈耳那舉行中找到。
不含除了神經節苷脂外之其它抗原成分的疫苗組成物 爲本發明之較佳目標,以那些含有N-AcGM3(N-AcGM3/ VSSP)及 /或 N-GcGM3(N-GcGM3/ VSSP)作爲其唯一之致免 疫成分者較佳,尤以僅含N-AcGM3/VSSP者更佳。 本發明之疫苗組成物目標爲V S S P的溶液或水溶性分 散液’其最後可含有其它正規用於非經腸胃道途徑之製藥 中的非·毒性、非-剌激性,可與水相容之溶劑,如:可爲聚 乙二醇。 在溶液或水溶性分散液中之結合的神經節苷脂濃度並 不嚴苛’其可在0.03%_3%(重量/體積)之範圍內,宜介於 〇.〇4%和2.5%(重量/體積)之間。本發明中所指之疫苗的經 皮下投服的劑量範圍係介於50微克和2·4毫克之間,宜 •8- (5) 1344372 介於200微克和2毫克之間。 本發明之疫苗組成物目標的必要特性爲其係設計成可 經由皮下投服,且不需任何額外之免疫佐劑。 免疫佐劑常用於疫苗調和物中。這類佐劑以不同方式 . 支持致免疫作用: . -在注射部位製造一抗原貯庫,以有系統的形式釋放 或釋出抗原。 -透過形成可很容易地由巨噬細胞捕捉之油性微滴來 φ 幫助抗原到達脾臟及淋巴結。 -直間或間接活化涉及免疫反應之細胞。 -最有名之免疫佐劑爲:弗洛德氏佐劑(完全和不完 全),蒙塔奈ISA 、利比(Ribi)佐劑 '杭特氏最高滴定濃 度(Hunter's TiterMax)、錦鹽、吉布(Gerbu)佐劑 ' QS-21,等。 令人驚訝且意外地,本發明之作者已發現當將神經節 苷脂/ VSSP經皮下投服時,可完全排除佐劑。也就是, 鲁 不論先前之技術狀態,幾乎完全排除經肌肉內途徑投服。 因此,當考慮到所提及之那些因爲使用佐劑而局部衍 生的發炎問題時,本發明代表幾乎無可否定的優點。此爲 一種以神經節苷脂簡單進行之有效、對患者較無侵略性的 ‘ 免疫接種方法。 下列實施例中包括比較性之實驗細節,以證明不含免 疫佐劑之疫苗組成物的免疫有效性。 -9 - (7) (7)1344372 第5組動物係在第〇、M、28和42天’經皮下途徑 接種〇.1毫升之疫苗組成物A(]20微克之N-ACGM3/ * VSSP)。 在第63天,以5xl03個細胞之黑色瘤MB16F10(0.2 · 毫升)經皮下途徑挑戰所有組中之小鼠。 · 從第0天開始將動物個別處理,並每週測定二次下列 變數:腫瘤體積、存活及開始擴展的時間。 下列爲所得結果: # 腫瘤體積: 在第1圖中顯示來自各實驗組之腫瘤生長動力。在腫 瘤挑戰後之第 33天,使用曼-惠尼(Mann-Whitney)(雙 尾)U檢定來評估經個別處理動物之腫瘤體積値的配對組 中的統計學顯著性。 本統計方法特別適合用來評估這類其中涉及生物項目 之資料具有自然離勢的實驗。 φ P値代表與從樣本計算出之實際値相關的機率,並可 . 用來定義α値之近似度(顯著性)’此α値係從史塔迪圖 ν (stadigraph)和確認虛無假設(ρ>〇·〇5)之實際資料計算出。 結果顯示於第1圖和表]中。 -11 - (8) 1344372 表1.-免疫接種對腫瘤體積的影響 組別 腫瘤體積(cm3 ) 第33天 平均値 曼一惠尼Up値(雙尾) 第1組 6,53 ___ 第2組 3,99 0,46a 第3組 6,63 _ 第4組 4,11 0,1 2b 第5組 1,89 0,01 c a: p値爲第2組對第1組之比較結果 b: p値爲第4組對第3組之比較結果 c: p値爲第5組對第3組之比較結果 從第1圖和表1中可見到:相對於實驗中之其它組及 相對應之對照組,以本發明之組成物目標經皮下途徑進行 免疫接種之第5組中的小鼠顯示出顯著下降之腫瘤體積。 存活 此變數係用來評估免疫接種在增加被免疫化(對與 MB 1 6具相同致命力之類的腫瘤進行免疫接種)之動物的壽 命的能力。每天與未處理過之動物中的存活情形進行比較 以測量此變數。使用對數-標等檢定(Log-Rank test)來決定 統計上之顯著性。 所得結果顯示於第2圖和表2中。表2中,參考組 -12- (9) 1344372 別X —詞意指與各擱相比較之組別。 表2.根據對數-標等檢定之存活時間統計 組 存活( 天數) P P P 中間 中位數 (參考組 (參考組 (參考組 別1 ) 別3) 別5) 第 1 組 3 5 33 _ 一 一 第 2 組 43 3 6 0,06 — 0,26 第 3 組 40 40 — 一 0,002 第 4 組 42 40 一 0,53 0,13 第 5 組 52 53 — 0,002 — 這些結果證明在接種腫瘤後,以本發明之調合物目標 經皮下途徑進行免疫接種之第5組中的小鼠顯示出最長之 存活期。 參 開始擴展之時間 · 間始擴展之時間爲用來評估使各動物體內之腫瘤個別 明顯化所需之時間期的變數,其係從接種的那一刻起開始 . 測量。結果顯示於表3中: -13- (10) 1344372 表3 . 恨據對數· 標等檢定之開始擴展時間的統計 組 開始擴展之時間 P P P (天數) (參考組 (參考組 (參考組 中間 中位數 別1 ) 別3 ) 別5) 第1組 19 19 _ _ — 第2組 32 19 0,02 一 0,5 第3組 19 19 _ _ 0,004 第4組 23 19 一 0,5 0,06 第5組 3 7 26 — 0,004 —
在結束實驗時尙未發展出任何腫瘤之小鼠的擴展時間 被視爲6 0天。 對延長腫瘤開始擴展之時間的影響力顯然爲一種在抗 癌疫苗中非常需要取得顯著差異的變數,而根據表3中所 觀察到之以本發明VSSP組成物目標經皮下途徑進行免疫 接種之第5組中的小鼠的結果顯示出較相關之陽性結果。 腫瘤消退 觀察第4和第5組中(相當於加上佐劑和不加上佐劑 來進行皮下免疫接種)之動物的腫瘤消退情形。在第4組 動物中,於接種後之第]9天可測量到腫瘤,但其實際上 維持無任何生長,直到第3 5天。第5組老鼠顯示在接種 後之第26天可藉觸診察覺到腫瘤存在,並且直到第29天 仍記載爲陰性。 -14 - (11) (11)1344372 總體評估 - 實驗結果顯示本發明之疫苗組成物目標可增加存活時 間及開始擴展之時間,同時,相對於以P B S處理之對照 - 組,其可顯著降低腫瘤生長速度。 ·
另一方面,含蒙塔奈ISA 51佐劑之疫苗組成物僅可 在經肌肉內途徑投服時具保護作用,而當經皮下途徑投服 時則完全無效。 II 總結,以本發明之疫苗組成物目標進行皮下免疫接種 時所得之結果顯示出較以含蒙塔奈 I S A 5 1佐劑之疫苗組 成物進行肌肉內免疫接種時所得者來得優越。 【圖式簡單說明】 第1圖代表顯示出5組接受不同疫苗處理,及以惡性 瘤挑戰之動物體內的腫瘤體積的評估圖形。 第2圖代表可用來察知在5組實驗動物中之存活變數 β 的圖形。 . -15-
Claims (1)
1344372
‘丨跑fl和正替說 拾 附件5 : 第9 3 1 0 4 8 0 8號專利申請案 中文申請專利範圍替換本 民國98年11月24日修正 1.—種含有含括於極小蛋白脂粒(VSSP)中之一或多 種選自N·乙醯基GM3神經節苷脂或N-乙醇醯基GM3神 經節苷脂的神經節苷脂的溶液或水溶性分散液之疫苗組成 物,其經由皮下投服後能剌激免疫反應而無需任何額外之 免疫佐劑。 2 ·如申請專利範圍第1項之疫苗組成物,其中該含 括於極小蛋白脂粒(V S S P )中之神經節苷脂爲N -乙醯基 G Μ 3神經節苷脂。 3.如申請專利範圍第1項之疫苗組成物,其中該組 成物不含有不同於神經節苷脂之其他抗原。
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