JP2006516405A - グルタミン産生能を有する新規のBifidobacterium菌株 - Google Patents
グルタミン産生能を有する新規のBifidobacterium菌株 Download PDFInfo
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- JP2006516405A JP2006516405A JP2006502776A JP2006502776A JP2006516405A JP 2006516405 A JP2006516405 A JP 2006516405A JP 2006502776 A JP2006502776 A JP 2006502776A JP 2006502776 A JP2006502776 A JP 2006502776A JP 2006516405 A JP2006516405 A JP 2006516405A
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- Prior art keywords
- strain
- dsm
- bifidobacterium infantis
- bifidobacterium
- strains
- Prior art date
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Abstract
Description
本発明は、in vivoでグルタミン及び必要に応じてアルギニンを産生する能力を有する新規のBifidobacterium菌株に関する。
グルタミンは、体内で最も豊富なアミノ酸である。それは、組織間の「窒素シャトル(Nitrogen shuttle)」及び腸細胞、結腸細胞(colonocyte)、リンパ球及び増殖細胞の燃料である。グルタミン欠乏患者においては消化管の機能が害され、これは特に、腸管内腔から門脈循環への細菌及び/またはエンドトキシンのトランスロケーションに対する保護が損なわれているためである。グルタミンが欠乏すると、深刻な疾患の及び損傷を受けた患者となり、そして、高頻度の感染や筋肉の消耗の一因となり得る。
Matteuzzi et al. [Ann. Microbiol.(Inst. Pasteur)1978; 129 B, 175-181]は異なる生息地由来の多数のビフィズス菌(Bifido−bacteria)において、培養液中に遊離アミノ酸を放出するそれらの能力について調査した。得られたデータは、Bifido−bacteriaの幾つかの種は増殖に必要な全てのアミノ酸を合成でき、そしてまた、培養液中に前記化合物を放出できることを示した。B.thermophilum、B.bifidum及びB.adolescentisは最も優れた生産菌であることが分かり、そして、培養液中に最も一般的に見られるアミノ酸は主にアラニン、バリン及びアスパラギン酸であった。Bifidobacterium spp.は消化管のアミノ酸代謝を担うと推測された。
Bifidobacteriumの特定の菌株がヒト大腸内の環境を模倣した増殖培地中でグルタミンを産生できることを驚くべきことに今日発見した。そして、前記の菌株は、哺乳類、特にヒトに対して経口で、または、腸に投与した後にin vivoでグルタミンを産生するために使用し得る。菌株によってはアルギニンも産生し得る。
本発明は、腸管内で生存する能力及びin vivoでグルタミンを産生する能力を有するBifidobacterium菌株に関する。特に、グルタミンはヒトの大腸で産生される。このような環境で生存するということは、各個体由来の糞便において、異なるサンプリング時に、細菌株が分離されることを意味する。従って、細菌は、しばらくの間、それらの宿主内で明らかに増殖し、そして生存する。本発明のビフィドバクテリウム菌株(Bifidobacterial strains)は、pH7以下、特に5.5−6.5の栄養培地で増殖できる。ロゴサ寒天培地(Rogosa agar)はこのような培地の一例であり、もう一つはMRSである。
菌株の分離
全ての菌株は若い子供(生後1週間〜1年)の糞便から分離した。糞便試料を希釈溶液(0.9%[w/v]NaCl、0.1%[w/v]ペプトン、0.1%[w/v]Tween80、0.02%[w/v]システイン−HCl)で連続的に希釈し、次に、ロゴサ寒天平板上に塗抹した。分離株はロゴサ寒天培地(pH5.4)上でのそれらの増殖能を考慮して選択し、そして、一個体から繰り返し分離した。37℃で72時間培養した後、ロゴサ寒天平板から分離株を採取した。これらを、属特異的なPCR(Roy et al., 2000; FEMS Microbiological Letters 191:17-24)により属レベルまで同定し、次いで、16S rDNAシークエンスにより種レベルまで同定した(Pettersson et al., 2002; Systematic and Applied Microbiology 23:332-336)。菌株は、サンプリングの間1〜4週間に、同じ個体から少なくとも2回分離され得、これは、菌株が胃腸管(GI−tract)にコロニーを形成する特定の能力を有することを強く示している。リボタイピング(すなわち、16S rRNA遺伝子の制限断片長多型(RFLP)である)により菌株を同定し、次いで、REA(すなわち、制限エンドヌクレアーゼ分析)により同定した。
1)Bifidobacterium infantis CURE 19;ロゴサ寒天上で増殖でき、そして、オートミールかゆをある程度まで発酵でき、発酵後は“すっぱい(sour)”においを発する。
以下の手順により、ブロスにおけるグルタミン産生について、分離株1−12を試験した。
各試験菌株のアミノ酸産生は、Matteuzzi et al.(1978)により記載された培地を改良した増殖培地(ブロス)中、37℃で4日間試験菌株を増殖させた後に測定した。該ブロスは以下を含む:酢酸ナトリウム、10g/l;アスコルビン酸、10g/l;硫酸アンモニウム((NH4)2SO4)、5g/l;リン酸水素二カリウム(K2HPO4)、3g/l;リン酸二水素カリウム(KH2PO4)、3g/l;MgSO4×7H2O、0.32g/l;FeSO4×7H2O、0.01g/l;MnSO4H2O、0.007g/l;NaCl、0.01g/l;酵母エキス、0.5g/l;グルコース、20g/l;Tween 80、1ml/l。pHは、オートクレーブ処理の前に1M NaOHで6.18−6.24に調整した。
REA
菌株は、染色体DNAの切断パターンについて、制限エンドヌクレアーゼ分析−REA−法(Stahl M, Molin G, Persson A, Ahrne S及びStahl S, International Journal of Systematic Bacteriology, 40:189-193, 1990に従う、及び、さらにJohansson, M-L., et al., International Journal of Systematic Bacteriology, 45:670-675, 1995により開発された方法)により試験した。REAについて、以下のように概略を示し得る:本研究に伴う菌株由来の染色体DNAを準備し、次いで、制限エンドヌクレアーゼにより切断した。0.75μgの各DNAは、10ユニットのEcoRI及びHind IIIを用いて、37℃で4時間それぞれ消化した;各エンドヌクレアーゼは別々に使用した。切断されたDNA断片は、サブマージ水平型アガロース平板ゲル(submerged horizontal agarose slab gels)を使用したゲル電気泳動によりサイズについて分離した。ゲルは150mlの0.9%アガロースからなり(超純粋DNAグレード;低電気浸透(low electroendo osmosis);BioRad Laboratories, MD, USA)、そして平板ゲルとしてキャストされた(150×235mm)。0.2μgの高分子量DNAマーカー(Bethesda Research Laboratories, MD, USA)は、0.5μgのDNA分子量マーカーVI(Roche、Germany)と共に、スタンダードとして使用した。フィコールローディングバッファー(Ficoll loading buffer)(2gのフィコール、8mlの水、0.25%のブロムフェノール)中で試料のDNAをアプライすることにより、最小のバンドの歪みと最大の鮮明さを達成した。
染色体の調製及び染色体DNAの制限エンドヌクレアーゼ分析は、先に述べたように行った(Stahl et al., 1990, Stahl et al., 1994)。
試験1.ラットの大腸炎を誘発するDDSに対するLactobacillus及びBifidobacterium菌株の影響
本研究の目的は、ラットの大腸炎を誘発するDDS(デキストラン硫酸ナトリウム(Dextran Sodium Sulfate))に対するLactobacillus及びBifidobacterium菌株の効果を比較することであった。
LactobacillusまたはBifidobacteriumを経口投与すると種々のポジティブな効果がもたらされ、例えば、抗生物質が関与した下痢を予防する(D’ Souza et al., 2002, BMJ 324:1361)。
4週間、14のボランティアの被験体に、Lactobacillus及びBifidobacteriumの約20の種々の菌株の混合物を飲ませる。全ての菌株は、ヒトまたは乳酸産生食品に生息する代表的な菌株である。糞便の採取は投与前、投与した3週間後、そして、投与後の1週間に行う。細菌フローラは生菌数測定及びRAPD(ランダム増幅多型DNA(Randomly Amplified Polymorphic DNA);Johansson et al., 1995)により決定する。
選択した菌株(すなわち、Bifidobacterium infantis CURE 19、DSM 15158;Bifidobacterium CURE 21、DSM 15159;Bifidobacterium infantis CURE 26、DSM 15160;Bifidobacterium infantis CURE 28、DSM 15161;及びBifidobacterium infantis CURE 29、DSM 15162)は、経口投与した後、胃腸管を通過して生存し得るという結果を示している。ラットにおける研究はまた、実験的な大腸炎に対してポジティブな効果を発揮する可能性があることも示している。
Claims (20)
- 腸管内で生存する、及び、in vivoでグルタミンを産生する能力を有するBifidobacterium菌株。
- アンモニアを同化する能力を有する請求項1に記載の菌株。
- 該菌株がBifidobacterium infantis種に属する請求項1または2に記載の菌株。
- Hind IIIで染色体DNAを切断し、続いてアガロースゲル電気泳動により断片を分離し、そして、サザンブロットハイブリダイゼーションを利用して、L.casei subsp.pseudoplantarum DSM 20008の16S rRNA遺伝子のDIG標識した420bp断片プローブ(E.coli番号付けで位置506〜926)とのハイブリダイゼーションにより得た分子サイズ約2840kbのシングルDNA断片上に位置する16S rRNA遺伝子を有する請求項1−3のいずれかに記載の菌株。
- EcoRIで染色体DNAを切断し、続いてアガロースゲル電気泳動により断片を分離し、そして、サザンブロットハイブリダイゼーションを利用して、L.casei subsp.pseudoplantarum DSM 20008の16S rRNA遺伝子のDIG標識した420bp断片プローブ(E.coli番号付けで位置506〜926)でのハイブリダイゼーションにより得た分子サイズ約895kbのシングルDNA断片上に位置する16S rRNA遺伝子を有する請求項1−4のいずれかに記載の菌株。
- EcoRIで染色体DNAを切断し、アガロースゲル電気泳動により断片を分離し、そして、サザンブロットハイブリダイゼーションを利用して、L.casei subsp.pseudoplantarum DSM 20008の16S rRNA遺伝子のDIG標識した420bp断片プローブ(E.coli番号付けで506〜926)とのハイブリダイゼーションにより得た分子サイズ約3420kbのシングルDNA断片上に位置する16S rRNA遺伝子を有する請求項1−4のいずれかに記載の菌株。
- 菌株Bifidobacterium infantis CURE 21、DSM 15159、または同一のREA−パターンを本質的に有するこれらの変異株である請求項1−5のいずれかに記載の菌株。
- 菌株Bifidobacterium infantis CURE 26、DSM 15160、または同一のREA−パターンを本質的に有するこれらの変異株である請求項1−5のいずれかに記載の菌株。
- アルギニン産生能を有する請求項1−4及び6のいずれかに記載の菌株。
- 菌株Bifidobacterium infantis CURE 19、DSM 15158、または同一のREA−パターンを本質的に有するこれらの変異株である請求項1−4、6及び9のいずれかに記載の菌株。
- 菌株Bifidobacterium infantis CURE 28、DSM 15161、または同一のREA−パターンを本質的に有するこれらの変異株である請求項1−4、6及び9のいずれかに記載の菌株。
- 菌株Bifidobacterium infantis CURE 29、DSM 15162、または同一のREA−パターンを本質的に有するこれらの変異株である請求項1−4、6及び9のいずれかに記載の菌株。
- 担体と組み合わせた請求請1−12のいずれかに記載の1菌株以上のBifidobacteriumを含む組成物。
- 担体がオートミールかゆであることを特徴とする請求項13に記載の組成物。
- 食物繊維も含有することを特徴とする請求項13または14に記載の組成物。
- 食品組成物であることを特徴とする請求項13−15のいずれかに記載の組成物。
- 薬学的組成物であることを特徴とし、ここで、担体が治療的に許容される担体であることを特徴とする請求項13−15のいずれかに記載の組成物。
- 1以上のLactobacillus菌株もまた含有することを特徴とする請求項13−17のいずれかに記載の組成物。
- 治療に使用するためのBifidobacterium infantis種に属する1以上の菌株。
- 多臓器不全及び腸不全を有する患者の集中治療処理のための、化学療法患者及び炎症性疾患を有する患者における予防のための、または大手術後の術後投与のための薬剤を調製のための、1以上の菌株Bifidobacterium infantis CURE 19、DSM 15158;Bifidobacterium infantis CURE 21、DSM 15159;Bifidobacterium infantis CURE 26、DSM 15160;Bifidobacterium infantis CURE 28、DSM 15161;Bifidobacterium infantis CURE 29、DSM 15162;または、これらの変異株の使用。
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SE0300245A SE526711C2 (sv) | 2003-01-31 | 2003-01-31 | Nya stammar av Bifidobacterium med förmåga att överleva i magtarmkanalen och producera glutamin in vivo, samt kompositioner och användningar därav |
US44727403P | 2003-02-14 | 2003-02-14 | |
PCT/SE2004/000098 WO2004067731A1 (en) | 2003-01-31 | 2004-01-27 | New strains of bifidobacterium having the ability to produce glutamine |
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AU2006296837B2 (en) | 2005-09-28 | 2012-12-13 | Nordic Rebalance A/S | Treatment of IBD and IBS using both probiotic bacteria and fermented cereal as treatment effectors |
DK1951273T3 (da) * | 2005-10-06 | 2014-05-05 | Probi Ab | Anvendelse af lactobacillus til behandling af autoimmune sygdomme |
JP5837879B2 (ja) * | 2010-07-05 | 2015-12-24 | 株式会社明治 | 腸内腐敗物質の低減作用を有するビフィズス菌 |
CL2010001124A1 (es) | 2010-10-14 | 2011-01-21 | Univ De Concepcion 50% Ma Loreto Ormeno 50% | Alimento funcional probiotico que comprende cepas viables de lactobacillus sp.; uso de dicho alimento funcional para contrarestar los efectos colaterales de la quimioterapia. |
KR20130049671A (ko) | 2011-11-04 | 2013-05-14 | 한미사이언스 주식회사 | 생리활성 폴리펩타이드 결합체 제조 방법 |
CN103131647B (zh) * | 2011-11-29 | 2017-06-27 | 上海上药信谊药厂有限公司 | 婴儿双歧杆菌及其制剂 |
CN108771687A (zh) | 2012-02-29 | 2018-11-09 | 伊西康内外科公司 | 微生物区系的组合物及与其相关的方法 |
AR090281A1 (es) | 2012-03-08 | 2014-10-29 | Hanmi Science Co Ltd | Proceso mejorado para la preparacion de un complejo polipeptidico fisiologicamente activo |
EP3881680A1 (en) | 2014-10-31 | 2021-09-22 | Pendulum Therapeutics, Inc. | Methods and compositions relating to microbial treatment |
CA3073838A1 (en) | 2017-08-30 | 2019-03-07 | Pendulum Therapeutics, Inc. | Methods and compositions for treatment of microbiome-associated disorders |
CN108330166A (zh) * | 2017-09-06 | 2018-07-27 | 深圳市百澳飞生物技术有限公司 | 一种酶制剂的饲用活性评估方法 |
RU2699967C1 (ru) * | 2018-12-25 | 2019-09-11 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Астраханский государственный медицинский университет" Министерства здравоохранения Российской Федерации (ФГБОУ ВО Астраханский ГМУ Минздрава России) | Способ комплексного лечения энтеральной недостаточности у детей с тяжелой термической травмой |
US11045507B2 (en) | 2019-02-21 | 2021-06-29 | Ewelina Sosnowska-Turek | Bifidobacterium animalis AMT30 strain and the composition containing the strain of Bifidobacterium animalis AMT30 |
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WO2004067731A1 (en) | 2004-08-12 |
ES2362496T3 (es) | 2011-07-06 |
BRPI0407176B8 (pt) | 2021-05-25 |
CN1777670A (zh) | 2006-05-24 |
EP1587913B1 (en) | 2011-01-19 |
SE0300245L (sv) | 2004-08-01 |
PL378435A1 (pl) | 2006-04-03 |
EP1587913A1 (en) | 2005-10-26 |
BRPI0407176B1 (pt) | 2018-05-08 |
JP4540664B2 (ja) | 2010-09-08 |
RU2005127331A (ru) | 2006-01-27 |
PL212096B1 (pl) | 2012-08-31 |
RU2352628C2 (ru) | 2009-04-20 |
CA2514659A1 (en) | 2004-08-12 |
CA2514659C (en) | 2014-07-08 |
CN100558883C (zh) | 2009-11-11 |
DK1587913T3 (da) | 2011-04-11 |
US7947482B2 (en) | 2011-05-24 |
US20060269533A1 (en) | 2006-11-30 |
AU2004208084A1 (en) | 2004-08-12 |
ATE496115T1 (de) | 2011-02-15 |
BRPI0407176A (pt) | 2006-02-07 |
SE526711C2 (sv) | 2005-10-25 |
AU2004208084B2 (en) | 2008-10-09 |
SE0300245D0 (sv) | 2003-01-31 |
DE602004031079D1 (de) | 2011-03-03 |
ZA200505777B (en) | 2007-12-27 |
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