JP2012246234A - Autoinducer-2 inhibitor - Google Patents
Autoinducer-2 inhibitor Download PDFInfo
- Publication number
- JP2012246234A JP2012246234A JP2011118071A JP2011118071A JP2012246234A JP 2012246234 A JP2012246234 A JP 2012246234A JP 2011118071 A JP2011118071 A JP 2011118071A JP 2011118071 A JP2011118071 A JP 2011118071A JP 2012246234 A JP2012246234 A JP 2012246234A
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- Prior art keywords
- mass
- autoinducer
- bacteria
- inhibitor
- present
- 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.)
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Abstract
Description
本発明は、オートインデューサー−2阻害剤に関する。 The present invention relates to an autoinducer-2 inhibitor.
自然界において、微生物は様々な環境下で生存しなければならない。貧栄養、低温度、高温、pH変化はもちろんのこと、生体内においては貪食細胞又は抗菌性液性因子(補体、抗体、リゾチーム等)が存在する環境での生存を余儀なくされる。このような状況下で、細菌は自らの存在環境の変化を敏感に感知する機構を獲得してきた。そのような機構の1つとして、微生物は特異的な情報伝達物質を介して環境における自らの密度を感知し、その密度に応じて自らの様々な生物活性を巧妙に制御していることが明らかとなっている。このような細胞間の情報伝達機構は、クオラムセンシングシステムと称される。 In nature, microorganisms must survive in various environments. In addition to oligotrophic, low temperature, high temperature, and pH change, living organisms are forced to survive in an environment where phagocytic cells or antibacterial humoral factors (complements, antibodies, lysozyme, etc.) are present. Under these circumstances, bacteria have acquired a mechanism for sensitively sensing changes in their environment. As one of such mechanisms, it is clear that microorganisms sense their own density in the environment through specific signaling substances and skillfully control their various biological activities according to their density. It has become. Such an information transmission mechanism between cells is called a quorum sensing system.
クオラムセンシングは、発光性海洋細菌であるビブリオ・フィシェリ及びビブリオ・ハーベイにおいて最初に報告された。しかし、最近では、多くの細菌における一般的な遺伝子調節機構であると認識されている。この現象により、細菌は、生物発光、スウォーミング、バイオフィルム形成、タンパク質分解酵素の産生、抗生物質の合成、遺伝子受容能の発達、プラスミド接合伝達、病原因子産生及び胞子形成などといった活動を一斉に行うことができる。 Quorum sensing was first reported in the luminescent marine bacteria Vibrio Fischeri and Vibrio Harvey. Recently, however, it has been recognized as a general gene regulatory mechanism in many bacteria. This phenomenon allows bacteria to perform activities such as bioluminescence, warming, biofilm formation, proteolytic enzyme production, antibiotic synthesis, gene acceptability development, plasmid conjugation transfer, virulence factor production and sporulation. Can be done.
クオラムセンシングシステムを有する細菌は、オートインデューサーと呼ばれるシグナル伝達分子を合成し、放出し、そのシグナル伝達分子に応答して、遺伝子発現を細胞密度の関数として制御する。これまで、アシルホモセリンラクトンがオートインデューサー−1として、4,5−ジヒドロキシ−2,3−ペンタンジオンがオートインデューサー−2として同定されている。 Bacteria with a quorum sensing system synthesize and release a signaling molecule called an autoinducer and respond to the signaling molecule to control gene expression as a function of cell density. So far, acyl homoserine lactone has been identified as autoinducer-1, and 4,5-dihydroxy-2,3-pentanedione as autoinducer-2.
ビブリオ属細菌、緑膿菌、セラチア、エンテロバクターなど臨床上重要な細菌がクオラムセンシングにオートインデューサー−1を利用することが報告されている。また、ビブリオ・ハーベイが、種内連絡には種特異性の高いオートインデューサー−1を利用し、種間連絡には種特異性の低いオートインデューサー−2を利用することが知られている。さらに最近の研究では、ある種の病原性細菌がオートインデューサー−2による種間でのクオラムセンシングにより、病原因子の産生を調節していることも示されている。このような病原性細菌としては、齲蝕原因菌であるストレプトコッカス・ミュータンス(Streptococcus mutans)、胃潰瘍及び胃ガンを惹起すると言われているヘリコバクター・ピロリ(Helicobacter pylori)、食中毒、ガス壊疽、出血性腸炎などの原因菌であるウェルシュ菌(Clostridium perfringens)等が挙げられる。従って、オートインデューサー−2を阻害する活性を有する物質が求められていた。 It has been reported that clinically important bacteria such as Vibrio bacteria, Pseudomonas aeruginosa, Serratia and Enterobacter use autoinducer-1 for quorum sensing. In addition, it is known that Vibrio Harvey uses autoinducer-1 with high species specificity for intra-species communication and uses autoinducer-2 with low species specificity for interspecies communication. . More recent studies have also shown that certain pathogenic bacteria regulate the production of virulence factors by quorum sensing between species with autoinducer-2. Examples of such pathogenic bacteria include Streptococcus mutans , which is a cause of caries, Helicobacter pylori , which is said to cause gastric ulcer and gastric cancer, food poisoning, gas gangrene, hemorrhagic enteritis And Clostridium perfringens which are causative bacteria such as. Therefore, a substance having an activity of inhibiting autoinducer-2 has been demanded.
オートインデューサー−2を阻害する物質としては、これまで、フラノン化合物、シクロペンテン化合物などが報告されている(例えば、特許文献1〜3参照)。 As substances that inhibit autoinducer-2, furanone compounds, cyclopentene compounds, and the like have been reported so far (see, for example, Patent Documents 1 to 3).
本発明は、オートインデューサー−2を阻害する活性を有し、非抗菌的な感染症の予防及び治療等に有効な、オートインデューサー−2阻害剤の提供を課題とする。 An object of the present invention is to provide an autoinducer-2 inhibitor that has an activity of inhibiting autoinducer-2 and is effective in the prevention and treatment of non-antibacterial infectious diseases.
本発明者等は、上記課題に鑑み鋭意検討を行った。その結果、炭素数8〜12のγ−ラクトンがオートインデューサー−2を阻害する活性を有するとともに、感染症に対して有効な化合物であることを見い出した。本発明はこの知見に基づいて完成するに至った。 The present inventors have conducted intensive studies in view of the above problems. As a result, it has been found that γ-lactone having 8 to 12 carbon atoms has an activity of inhibiting autoinducer-2 and is an effective compound against infectious diseases. The present invention has been completed based on this finding.
本発明は、炭素数8〜12のγ−ラクトンからなる群より選ばれる少なくとも1種を有効成分とするオートインデューサー−2阻害剤に関する。
また、本発明は、前記オートインデューサー−2阻害剤を含有してなる、非抗菌性の歯周病の予防及び/又は治療剤に関する。
また、本発明は、前記オートインデューサー−2阻害剤を含有してなる、非抗菌性の齲蝕の予防及び/又は治療剤に関する。
また、本発明は、前記オートインデューサー−2阻害剤を適用し、生存する細菌による歯垢原因物質の産生を抑制する、歯垢原因物質産生抑制方法に関する。
さらに、本発明は、前記オートインデューサー−2阻害剤を含有してなる、医薬組成物、食品組成物又は化粧料組成物に関する。
The present invention relates to an autoinducer-2 inhibitor comprising as an active ingredient at least one selected from the group consisting of γ-lactones having 8 to 12 carbon atoms.
The present invention also relates to a non-antibacterial periodontal disease preventive and / or therapeutic agent comprising the autoinducer-2 inhibitor.
In addition, the present invention relates to a non-antibacterial caries preventive and / or therapeutic agent comprising the autoinducer-2 inhibitor.
The present invention also relates to a method for inhibiting plaque causative substance production, wherein the autoinducer-2 inhibitor is applied to suppress the production of plaque causative substances by living bacteria.
Furthermore, the present invention relates to a pharmaceutical composition, a food composition or a cosmetic composition comprising the autoinducer-2 inhibitor.
本発明によれば、オートインデューサー−2を阻害する活性を有し、非抗菌的な感染症の予防及び治療等に有効な、オートインデューサー−2阻害剤が提供される。 ADVANTAGE OF THE INVENTION According to this invention, the autoinducer-2 inhibitor which has the activity which inhibits autoinducer-2 and is effective in the prevention, treatment, etc. of a non-antibacterial infection is provided.
本発明に用いる炭素数8〜12のγ−ラクトンは、それぞれ、エステルの官能基を環内に含む、環状エステル化合物であるラクトンの1種である。
ラクトンは、エステルの官能基を含む環を構成する原子数により、α−ラクトン、β−ラクトン、γ−ラクトン、δ−ラクトン、ε−ラクトン、等に分類される。本発明に用いるγ−ラクトンはエステルの官能基を含む環が5員環である。
The γ-lactone having 8 to 12 carbon atoms used in the present invention is a kind of lactone which is a cyclic ester compound each containing an ester functional group in the ring.
Lactones are classified into α-lactone, β-lactone, γ-lactone, δ-lactone, ε-lactone, etc., depending on the number of atoms constituting the ring containing the functional group of the ester. The γ-lactone used in the present invention has a 5-membered ring containing an ester functional group.
本発明に用いる前記γ−ラクトンは、下記一般式(1)で表されることが好ましい。 The γ-lactone used in the present invention is preferably represented by the following general formula (1).
(一般式(1)中、R1は炭素数4〜8の直鎖アルキル基を表す。) (In General Formula (1), R 1 represents a linear alkyl group having 4 to 8 carbon atoms.)
以下に、本発明に用いるγ−ラクトンの好ましい具体例を示すが、本発明はこれらに限定されない。 Although the preferable specific example of (gamma) -lactone used for this invention below is shown, this invention is not limited to these.
本発明に用いるγ−ラクトンはいずれも広く一般に入手できる。例えば、通常の合成方法、具体的にはγ−オキシ酸の脱水反応により化学的に合成してもよい。あるいは、天然物から抽出してもよいし、市販のものを用いてもよい。 Any of the γ-lactones used in the present invention is widely available to the public. For example, it may be chemically synthesized by an ordinary synthesis method, specifically, a dehydration reaction of γ-oxyacid. Or you may extract from a natural product and may use a commercially available thing.
本発明のオートインデューサー−2阻害剤において、有効成分としていずれか1種のγ−ラクトンを用いてもよいし、2種以上のγ−ラクトンを用いてもよい。 In the autoinducer-2 inhibitor of the present invention, any one γ-lactone may be used as the active ingredient, or two or more γ-lactones may be used.
本発明において、前記有効成分を溶媒に溶解/分散させ、オートインデューサー−2阻害剤としてもよい。本発明で用いることができる溶媒としては特に制限はないが、水、エタノール、プロピレングリコール、ジメチルスルホキサイド等が挙げられ、水及びエタノールが好ましい。 In the present invention, the active ingredient may be dissolved / dispersed in a solvent and used as an autoinducer-2 inhibitor. Although there is no restriction | limiting in particular as a solvent which can be used by this invention, Water, ethanol, propylene glycol, a dimethyl sulfoxide etc. are mentioned, Water and ethanol are preferable.
本発明におけるオートインデューサー−2(以下、「AI−2」ともいう)としては、細菌が産生するものでAI−2活性を有するものであれば特に制限はない。
本発明におけるAI−2の具体例としては、下記式で表される4,5−ジヒドロキシ−2,3−ペンタンジオン(本明細書において、DPDともいう)、及びDPDが有するAI−2活性と同等のAI−2活性を有する化合物が包含される。
The autoinducer-2 (hereinafter also referred to as “AI-2”) in the present invention is not particularly limited as long as it is produced by bacteria and has AI-2 activity.
Specific examples of AI-2 in the present invention include 4,5-dihydroxy-2,3-pentanedione (also referred to herein as DPD) represented by the following formula, and AI-2 activity possessed by DPD. Compounds having equivalent AI-2 activity are included.
前記DPDは、細菌のAI−2受容体と結合するときにボロンを取り込んで、フラノシルボレートジエステルに変換される。本発明におけるAI−2の別の具体例としては、前記フラノシルボレートジエステルが挙げられる。また、DPDはリン酸化されてリン酸化DPD(Phospho-DPD)となり、AI−2活性を発現することが知られている(例えば、Taga M.et al.,Mol.Microbiol.,42,p.777-793,2001参照)。本発明におけるAI−2は、リン酸化DPDも包含する。
前記フラノシルボレートジエステル及びPhospho-DPDの具体例を以下に示す。しかし、本発明はこれらに制限するものではない。
When DPD binds to the bacterial AI-2 receptor, it incorporates boron and is converted to furanosyl borate diester. Another specific example of AI-2 in the present invention is the furanosyl borate diester. It is also known that DPD is phosphorylated to become phosphorylated DPD (Phospho-DPD) and expresses AI-2 activity (see, for example, Taga M. et al., Mol. Microbiol., 42, p. 777-793, 2001). AI-2 in the present invention includes phosphorylated DPD.
Specific examples of the furanosyl borate diester and Phospho-DPD are shown below. However, the present invention is not limited to these.
本発明においてAI−2を阻害することは、AI−2がクオラムセンシングを介して細菌に及ぼす影響を阻害することをさし、AI−2活性を阻害すること、AI−2分解すること、AI−2のAI−2受容体への結合を阻害することなどが包含される。 Inhibiting AI-2 in the present invention refers to inhibiting the effect of AI-2 on bacteria via quorum sensing, inhibiting AI-2 activity, decomposing AI-2, Inhibiting the binding of AI-2 to the AI-2 receptor is included.
本発明においてAI−2活性は、AI−2がクオラムセンシングシステムを有する細菌に影響を及ぼす活性、すなわち、AI−2を介するクオラムセンシングによりもたらされる細菌の機能を促進する活性をさす。細菌は、AI−2を介するクオラムセンシングにより、発光、スウォーミング、バイオフィルム形成、タンパク質分解酵素の産生、抗生物質の合成、遺伝子受容能の発達、プラスミド接合伝達、病原因子産生及び胞子形成等を行うことが知られている。したがって、AI−2活性は、換言すれば、AI−2を認識する細菌、すなわちAI−2受容体を有する細菌による生物発光、スウォーミング、バイオフイルム形成、タンパク質分解酵素の産生、抗生物質の合成、遺伝子受容能の発達、プラスミド接合伝達、病原因子産生及び/又は胞子形成の活性ということができる。本発明においてAI−2活性は、特に、細菌の病原因子産生活性をさす。 In the present invention, AI-2 activity refers to an activity in which AI-2 affects bacteria having a quorum sensing system, that is, an activity that promotes the function of bacteria brought about by quorum sensing via AI-2. Bacteria can luminescence, warming, biofilm formation, proteolytic enzyme production, antibiotic synthesis, gene acceptability development, plasmid conjugation transfer, pathogenic factor production and spore formation by quorum sensing via AI-2 Etc. are known to perform. Thus, AI-2 activity is, in other words, bioluminescence, swarming, biofilm formation, proteolytic enzyme production, antibiotic production by bacteria that recognize AI-2, i.e. bacteria having the AI-2 receptor. It can be referred to as activity of synthesis, development of gene acceptability, plasmid conjugation transfer, pathogenic factor production and / or sporulation. In the present invention, AI-2 activity particularly refers to bacterial pathogen production activity.
前記病原因子としては、例えば、エンテロトキシン、アデニル酸シクラーゼ毒素、アドヘシン、アルカリプロテアーゼ、溶血毒、炭疽毒素、APX毒素、α毒素、β毒素、δ毒素、C2毒素、C3毒素、ボツリヌス毒素、束状線毛構造サブユニット、C5Aペプチダーゼ、心臓毒、走化性、コレラ毒素、毛様体毒素、クロストリジウム細胞毒、クロストリジウム神経毒、コラーゲン接着遺伝子、細胞溶解素、嘔吐毒素、内毒素、表皮剥脱毒素、外毒素、細胞外エラスターゼ、フィブリノゲン、フィブロネクチン結合タンパク質、線維状赤血球凝集素、フィンブリア、ゼラチナーゼ、赤血球凝集素、ロイコトキシン、リポタンパク質シグナルペプチダーゼ、リステリオリシンO、Mタンパク質、神経毒、非フィンブリアアドヘシン類、浮腫因子、透過酵素、百日咳毒素、ホスホリパーゼ、線毛、孔形成毒素、プロリンパーミアーゼ、セリンプロテアーゼ、志賀毒素、破傷風毒素、チオール活性化細胞溶解素、気管細胞溶解素、ウレアーゼなどが挙げられるが、本発明はこれらに制限されない。 Examples of the pathogenic factor include enterotoxin, adenylate cyclase toxin, adhesin, alkaline protease, hemolytic toxin, anthrax toxin, APX toxin, α toxin, β toxin, δ toxin, C2 toxin, C3 toxin, botulinum toxin, bundled line Hair structure subunit, C5A peptidase, cardiotoxin, chemotaxis, cholera toxin, ciliary toxin, clostridial cytotoxin, clostridial neurotoxin, collagen adhesion gene, cytolysin, vomiting toxin, endotoxin, exfoliating toxin, external Toxin, extracellular elastase, fibrinogen, fibronectin binding protein, fibrillar hemagglutinin, fimbria, gelatinase, hemagglutinin, leukotoxin, lipoprotein signal peptidase, listeriolysin O, M protein, neurotoxin, non-fimbria adhesin Edema factor, Examples include hyperenzyme, pertussis toxin, phospholipase, pili, pore forming toxin, proline permease, serine protease, Shiga toxin, tetanus toxin, thiol activated cytolysin, tracheal cell lysin, urease, etc. It is not limited to these.
本発明のAI−2阻害剤の有効成分で影響を及ぼすことができる細菌、換言すれば、本発明のAI−2阻害剤の有効成分で増殖・生育を抑制できる細菌は、AI−2によりその機能、例えば、生物発光、スウォーミング、バイオフィルム形成、タンパク質分解酵素の産生、抗生物質の合成、遺伝子受容能の発達、プラスミド接合伝達、病原因子産生及び胞子形成などが促進される細菌である。例えば、AI−2受容体を有する細菌、好ましくはAI−2受容体を有し、AI−2を産生する細菌を対象とすることができる。 Bacteria that can be affected by the active ingredient of the AI-2 inhibitor of the present invention, in other words, bacteria that can suppress the growth and growth of the active ingredient of the AI-2 inhibitor of the present invention are expressed by AI-2. Bacteria whose functions are promoted such as bioluminescence, warming, biofilm formation, proteolytic enzyme production, antibiotic synthesis, gene acceptability development, plasmid conjugation transfer, pathogenic factor production and sporulation . For example, a bacterium having an AI-2 receptor, preferably a bacterium having an AI-2 receptor and producing AI-2 can be used.
AI−2活性は、AI−2を認識することにより発光するレポーター細菌、好ましくはAI−2受容体及びルシフェラーゼを有する細菌を用いるバイオアッセイにより測定することができる(例えば、Keersmaecker S.C.J.et al.,J.Biol.Chem.,280(20),p.19563-19568,2005参照)。具体的には、ビブリオ・ハーベイ(Vibrio harveyi)BB170株をレポーター細菌とし、被検化合物の存在下で培養し、培養後の発光強度をケミルミネッセンス計などで測定することにより、AI−2活性を測定することができる。 AI-2 activity can be measured by a bioassay using a reporter bacterium that emits light by recognizing AI-2, preferably a bacterium having an AI-2 receptor and luciferase (eg, Keersmaecker S.C.J. Et al., J. Biol. Chem., 280 (20), p. 19563-19568, 2005). Specifically, Vibrio harveyi BB170 strain is used as a reporter bacterium, cultured in the presence of a test compound, and the luminescence intensity after the culture is measured with a chemiluminescence meter, etc. Can be measured.
AI−2を阻害することにより影響を及ぼす、又は増殖・生育を抑制することができる細菌としては、例えば、ビブリオ(Vibrio)属細菌、シュードモナス(Pseudomonas)属細菌、ポルフィロモナス(Porphyromonas)属細菌、エルシニア(Yersinia)属細菌、エシェリキア(Escherichia)属細菌、サルモネラ(Salmonella)属細菌、ヘモフィルス(Haemophilus)属細菌、ヘリコバクター(Helicobacter)属細菌、バシルス(Bacillus)属細菌、ボレリア(Borrelia)属細菌、ナイセリア(Neisseria)属細菌、カンピロバクター(Campylobacter)属細菌、デイノコックス(Deinococcus)属細菌、ミコバクテリウム(Mycobacterium)属細菌、エンテロコッカス(Enterococcus)属細菌、ストレプトコッカス(Streptococcus)属細菌、シゲラ(Shigella)属細菌、エロモナス(Aeromonas)属細菌、エイケネラ(Eikenella)属細菌、クロストリジウム(Clostridium)属細菌、スタフィロコッカス(Staphylococcus)属細菌、ラクトバチルス(Lactobacillus)属細菌、アクチノバチルス(Actinobacillus)属細菌、アクチノマイセス(Actinomyces)属細菌、バクテロイデス(Bacteroides)属細菌、カプノサイトファガ(Capnocytophaga)属細菌、クレブシエラ(Klebsiella)属細菌、ハロバチルス(Halobacillus)属細菌、フゾバクテリウム(Fusobacterium)属細菌、エルウィニア(Erwinia)属細菌、エルベネラ(Elbenella)属細菌、ラクトバチルス(Lactobacillus)属細菌、リステリア(Listeria)属細菌、マンヘイミア(Mannheimia)属細菌、ペプトコッカス(Peptococcus)属細菌、プレボテラ(Prevotella)属細菌、プロテウス(Proteus)属細菌、セラチア(Serratia)属細菌、ベイロネラ(Veillonella)属細菌及びアグリゲイティバクター(Aggregatibacter)属細菌などが挙げられる。より具体的には、ビブリオ・ハーベイ(Vibrio harveyi)、ビブリオ・フィシェリ(Vibrio fischeri)、コレラ菌(Vibrio cholerae)、腸炎ビブリオ(Vibrio parahaemolyticus)、ビブリオ・アルギノリチカス(Vibrio alginolyticus)、シュードモナス・ホスホレウム(Pseudomonas phosphoreum)、ポリフィロモナス・ジンジバリス(Porphyromonas gingivalis)、エルシニア・エンテロコリチカ(Yersinia enterocolitica)、大腸菌(Escherichia coli)、ネズミチフス菌(Salmonella typhimurium)、インフルエンザ菌(Haemophilus influenzae)、ヘリコバクター・ピロリ(Helicobacter pylori)、枯草菌(Bacillus subtilis)、ボレリア・ブルグドルフェリ(Borrelia burgfdorferi)、髄膜炎菌(Neisseria meningitidis)、淋菌(Neisseria gonorrhoeae)、ペスト菌(Yersinia pestis)、カンピロバクター・ジェジュニ(Campylobacter jejuni)、デイノコックス・ラジオデュランス(Deinococcus radiodurans)、結核菌(Mycobacterium tuberculosis)、エンテロコッカス・フェカリス(Enterococcus faecalis)、肺炎レンサ球菌(Streptococcus pneumoniae)、化膿レンサ球菌(Streptococcus pyogenes)、ストレプトコッカス・ミュータンス(Streptococcus mutans)、黄色ブドウ球菌(Staphylococcus aureus)、箕田赤痢菌(Shigella flexneri)、シゲラ・ボイデイ(Shigella boydii)、セレウス菌(Bacillus cereus)、バチルス・クブチリス(Bacillus cubtilis)、エロモナス・ハイドロフィラ(Aeromonas hydrophila)、チフス菌(Salmonella enterica)、エイケネラ・コロデンス(Eikenella corrodens)、ヘリコバクター・ヘパティカス(Helicobacter hepaticus)、ウェルシュ菌(Clostridium perfringens)、スタフィロコッカス・ハエモリティカス(Staphylococcus haemolyticus)、ラクトバチルス・ガセリ(Lactobacillus gasseri)、ラクトバチルス アシドフィラス(Lactobacillus acidophilus)、ラクトバチルス・ロイテリ(Lactobacillus reuteri)、ラクトバチルス・サリバリウス(Lactobacillus salivarius)、ラクトバチルス・カゼイ(Lactobacillus casei)、ストレプトコッカス・サンギニス(Streptococcus sanguinis)、ストレプトコッカス・アンギノーサス(Streptococcus anginosus)、ストレプトコッカス・オラリス(Streptococcus oralis)、ストレプトコッカス・ボビス(Streptococcus bovis)、ストレプトコッカス・ゴルドニ(Streptococcus gordonii)、ストレプトコッカス・ミティス(Streptococcus mitis)、アクチノバチルス・アクチノマイセテムコミタンス(Actinobacillus actinomycetemcomitans)、ビブリオ・ブルニフィカス(Vivrio vulnificus)、ビブリオ・ミミクス(Vibrio mimicus)、ビブリオ・アングイラルム(Vibrio anguillarum)、ラクトバチルス・ラムノサス(Lactobacillus rhamnosus)、エルウィニア・アミロボラ(Erwinia amylovora)、エルウィニア・カロトバラ(Erwinia carotovara)、ハロバチルス・ハロフィラス(Halabacilus halophilus)、セラチア・ピムチカ(Serratia pymuthica)、セラチア・マルセセンス(Serratia marcescens)、バクテロイデス・フラジリス(Bacteroides fragilis)、バクテロイデス・ブルガタス(Bacteroides vulgatus)、バクテロイデス・ディスタソニス(Bacteroides distasonis)、リステリア・モノサイトジェネス(Listeria monocytogenes)、スタフィロコッカス・エピデルミディス(Staphylococcus epidermidis)、クロストリジウム・ディフィシル(Clostridium difficile)、アエロモナス・ハイドロフィリア(Aeromonas hydrophilia)、マンヘイミア・ハエモライティカ(Mannhemia haemolytica)、クレブシエラ・ニューモニアエ(Klebsiella pneumoniae)、バチルス・アンスラシス(Bacillus anthracis)、カンピロバクター・コリ(Campylobacter coli)、カンピロバクター・レクタス(Campylobacter rectus)、プロテウス・ミラビリス(Proteus mirabilis)、アクチノマイセス・ナエスランディ(Actinomyces naeslundii)、アクチノマイセス・ビスコーサス(Actinomyces viscosus)、アクチノマイセス・イスラエリー(Actinomyces israelii)、ペプトコッカス・アナエロビウス(Peptococcus anaerobius)、フゾバクテリウム・ヌクレアタム(Fusobacterium nucleatum)、ベイロネラ・パルラ(Veillonella parvula)、カプノサイトファガ・スプティゲナ(Capnocytophaga sputigena)、プレボテラ・インタメディア(Prevotella intermedia)及びアグリゲイティバクター・アクチノミセテムコミタンス(Aggregatibacter actinomycetemcomitans)などが挙げられる。 Examples of bacteria that can be affected by inhibiting AI-2 or that can suppress proliferation and growth include bacteria belonging to the genus Vibrio, bacteria belonging to the genus Pseudomonas, bacteria belonging to the genus Porphyromonas. , Yersinia (Yersinia) bacteria, Escherichia (Escherichia) bacteria, Salmonella (Salmonella) bacteria, Haemophilus (Haemophilus) bacteria, Helicobacter (Helicobacter) bacteria, Bacillus (Bacillus) bacteria, Borrelia (Borrelia) bacteria, Neisseria (Neisseria) bacteria belonging to the genus Campylobacter (Campylobacter) bacteria belonging to the genus, Day Roh Cox (Deinococcus) bacteria belonging to the genus Mycobacterium (Mycobacterium) bacteria belonging to the genus Enterococcus (Enterococcus) bacteria belonging to the genus Streptococcus (Streptococcus) bacteria belonging to the genus Shigella (Shigella) genus Bacteria, Aeromonas ( Ae romonas) bacteria belonging to the genus, Eikenera (Eikenella) bacteria belonging to the genus Clostridium (Clostridium) bacteria, Staphylococcus (Staphylococcus) bacteria belonging to the genus Lactobacillus (Lactobacillus) bacteria belonging to the genus Actinobacillus (Actinobacillus) bacteria belonging to the genus Actinomyces (Actinomyces) bacteria belonging to the genus Bacteroides (Bacteroides) bacteria belonging to the genus, Cap Roh site file moth (Capnocytophaga) bacteria belonging to the genus Klebsiella (Klebsiella) bacteria belonging to the genus, Harobachirusu (Halobacillus) bacteria, Fusobacterium (Fusobacterium) bacteria belonging to the genus Erwinia (Erwinia) bacteria belonging to the genus, Erubenera (Elbenella) bacteria belonging to the genus Lactobacillus (Lactobacillus) bacteria belonging to the genus Listeria (Listeria) bacteria belonging to the genus Mannheimia (Mannheimia) bacteria belonging to the genus, Peputokokkasu (Peptococcus) bacteria belonging to the genus Prevotella (Prevotella) bacteria belonging to the genus, Proteus (Proteus) bacteria belonging to the genus, Serachi Examples include bacteria belonging to the genus Serratia, bacteria belonging to the genus Veillonella, bacteria belonging to the genus Aggregatibacter . More specifically, Vibrio harveyi (Vibrio harveyi), Vibrio fischeri (Vibrio fischeri), cholera (Vibrio cholerae), Vibrio parahaemolyticus (Vibrio parahaemolyticus), Vibrio Aruginorichikasu (Vibrio alginolyticus), Pseudomonas Hosuhoreumu (Pseudomonas phosphoreum ), poly Philo Sphingomonas gingivalis (Porphyromonas gingivalis), Yersinia enterocolitica (Yersinia enterocolitica), E. (Escherichia coli), Salmonella typhimurium (Salmonella typhimurium), Haemophilus influenzae (Haemophilus influenzae), Helicobacter pylori (Helicobacter pylori), Bacillus subtilis (Bacillus subtilis), Borrelia burgdorferi (Borrelia burgfdorferi), meningococcal (Neisseria meningitidis), Neisseria gonorrhoeae (Neisseria gonorrhoeae), Yersinia pestis (Yersinia pestis), Campylobacter Jeji Two (Campylobacter jejuni), Day Roh Cox radiodurans (Deinococcus radiodurans), Mycobacterium tuberculosis (Mycobacterium tuberculosis), Enterococcus faecalis (Enterococcus faecalis), Streptococcus pneumoniae (Streptococcus pneumoniae), Streptococcus pyogenes (Streptococcus pyogenes), Streptococcus mu chest (Streptococcus mutans), Staphylococcus aureus (Staphylococcus aureus), Mita Shigella (Shigella flexneri), Shigella Boidei (Shigella boydii), Bacillus cereus (Bacillus cereus), Bacillus Kubuchirisu (Bacillus cubtilis), Aeromonas hydrophila ( Aeromonas hydrophila), Salmonella typhi (Salmonella enterica), Eikenera-Korodensu (Eikenella corrodens), Helicobacter Hepatikasu (Helicobacter hepaticus), Clostridium perfringens (Clostridium perfringens), staphylococcal · Haemoritikasu (Staphylococcus haemolyticus), Lactobacillus gasseri (Lactobacillus gasseri), Lactobacillus acidophilus (Lactobacillus acidophilus), Lactobacillus reuteri (Lactobacillus reuteri), Lactobacillus salivarius (Lactobacillus salivarius), Lactobacillus casei (Lactobacillus casei) , Streptococcus Sanginisu (Streptococcus sanguinis), Streptococcus anginosus (Streptococcus anginosus), Streptococcus oralis (Streptococcus oralis), Streptococcus bovis (Streptococcus bovis), Streptococcus Gorudoni (Streptococcus gordonii), Streptococcus mitis (Streptococcus mitis), actinolite Bacillus actinomycetemcomitans (Actinobacillus actinomycetemcomitans), Vibrio Vulnificus (Vivrio vulnificus), Vibrio Mimikusu (Vibrio mimicus), Vibrio Anguirarumu (Vibrio anguillarum), Lactobacillus rhamnosus (Lactobacillus rhamnosus), Erwinia Amirobora (Erwinia amylovora), Erwinia Karotobara (Erwinia carotovara), Harobachirusu-halophilus (Halabacilus halophilus), Serratia Pimuchika (Serratia pymuthica), Serratia marcescens (Serratia marcescens), Bacteroides fragilis (Bacteroides fragilis), Bacteroides vulgatus (Bacteroides vulgatus), Bacteroides Disutasonisu (Bacteroides distasonis), Listeria monocytogenes ( Listeria monocytogenes ), Staphylococcus epidermidis , Clostridium difficile ( Clo stridium difficile), Aeromonas hydrophila Philia (Aeromonas hydrophilia), Mannheimia Haemoraitika (Mannhemia haemolytica), Klebsiella pneumoniae (Klebsiella pneumoniae), Bacillus anthracis (Bacillus anthracis), Campylobacter coli (Campylobacter coli), Campylobacter rectus (Campylobacter rectus), Proteus mirabilis (Proteus mirabilis), Actinomyces Naesurandi (Actinomyces naeslundii), Actinomyces viscosus (Actinomyces viscosus), Actinomyces Isuraeri (Actinomyces israelii), Peputokokkasu-Anaerobiusu (Peptococcus anaerobius), Fusobacterium nucleatum (Fusobacterium nucleatum), Beironera-Parla (Veillonella parvula), Cap Roh site file moth-Suputige Na (Capnocytophaga sputigena), Prevotella interface media (Prevotella intermedia) and Aggregatibacter actinomycetemcomitans (Aggregatibacter actinomycetemcomitans) and the like.
本発明のAI−2阻害剤の有効成分は、ストレプトコッカス・ミュータンス、ポリフィロモナス・ジンジバリス、ストレプトコッカス・オラリス、ストレプトコッカス・ゴルドニ、ストレプトコッカス・サングイニス、ストレプトコッカス・ミティス、アクチノマイセス・ナエスランディ、ペプトコッカス・アナエロビウス、アクチノバチルス・アクチノマイセテムコミタンス、フゾバクテリウム・ヌクレアタム、ベイロネラ・パルラ、カプノサイトファガ・スプティゲナ、プレボテラ・インタメディア及びラクトバチルス・サリバリウスなどに対するAI−2の阻害に対し、特に好ましく用いられる。 The active ingredients of the AI-2 inhibitor of the present invention include Streptococcus mutans, Polyphyromonas gingivalis, Streptococcus oralis, Streptococcus gordonii, Streptococcus sanguinis, Streptococcus mitis, Actinomyces naeslandi, Peptococcus anaerodia In particular, it is preferably used for the inhibition of AI-2 against Actinobacillus actinomycetemcomitans, Fusobacterium nucleatum, Beironella parla, Capnocytofaga sputigena, Prevotella intermedia, Lactobacillus salivaius and the like.
生体内において、AI−2量とある種の感染症の症状とが相関関係を有し、本発明のAI−2阻害剤の有効成分を投与することにより歯周病、齲蝕等の感染症の症状を低減できる。したがって、一実施形態において本発明は、前記オートインデューサー−2阻害剤を含有してなる、非抗菌性の歯周病又は齲蝕の予防及び/又は治療剤に関する。さらに、本発明のAI−2阻害剤は、非抗菌性の、歯周病、齲蝕等の感染症の予防及び/又は治療剤として用いることができる。さらには、本発明のAI−2阻害剤は、非抗菌性の、歯周病、齲蝕等の感染症の予防及び/又は治療剤などに含有させることができる。
なお、本明細書において「非抗菌性」とは、細菌の増殖及び/又は生育を抑制しないことをさす。なお、特公平7−17499号公報、特開平9−169624号公報、特開2000−44471号公報、特表2002−540123号公報、特開2004−18470号公報、特開2007−99782号公報には、細菌に対する抗菌性、すなわち細菌の増殖及び/又は生育抑制能を示す、抗菌用組成物が記載されている。しかし、これらの組成物は、抗菌性の有無の観点から、本発明の非抗菌性の歯周病又は齲蝕の予防及び/又は治療剤とは全く異なるものである。
In vivo, there is a correlation between the amount of AI-2 and the symptoms of certain infectious diseases. By administering the active ingredient of the AI-2 inhibitor of the present invention, infectious diseases such as periodontal disease and caries Symptoms can be reduced. Therefore, in one embodiment, the present invention relates to a non-antibacterial periodontal disease or caries preventive and / or therapeutic agent comprising the autoinducer-2 inhibitor. Furthermore, the AI-2 inhibitor of the present invention can be used as a non-antibacterial agent for preventing and / or treating infectious diseases such as periodontal disease and caries. Furthermore, the AI-2 inhibitor of the present invention can be contained in a non-antibacterial agent for preventing and / or treating infectious diseases such as periodontal disease and caries.
In the present specification, “non-antibacterial” means not inhibiting bacterial growth and / or growth. In Japanese Patent Publication No. 7-17499, Japanese Patent Application Laid-Open No. 9-169624, Japanese Patent Application Laid-Open No. 2000-44471, Japanese Patent Application Publication No. 2002-540123, Japanese Patent Application Laid-Open No. 2004-18470, and Japanese Patent Application Laid-Open No. 2007-99782. Describes an antibacterial composition exhibiting antibacterial properties against bacteria, ie, bacterial growth and / or growth inhibition ability. However, these compositions are completely different from the non-antibacterial periodontal disease or caries preventive and / or therapeutic agent of the present invention from the viewpoint of the presence or absence of antibacterial activity.
本発明のAI−2阻害剤の有効成分を投与することにより予防及び/又は治療することができる感染症は、AI−2を阻害することにより予防及び/又は治療することができる感染症であり、換言すれば、AI−2を利用するクオラムセンシングシステムを有する細菌、具体的にはAI−2を阻害することにより影響を及ぼすことができる上記のような細菌に関連する感染症である。 The infectious disease that can be prevented and / or treated by administering the active ingredient of the AI-2 inhibitor of the present invention is an infectious disease that can be prevented and / or treated by inhibiting AI-2. In other words, it is a bacterium having a quorum sensing system utilizing AI-2, specifically an infectious disease related to the above-mentioned bacterium that can be affected by inhibiting AI-2.
前記有効成分を投与することにより予防及び/又は治療することができる感染症の具体例として、口腔、皮膚、膣、消化(GI)管、食道及び気道等における感染症が挙げられる。より具体的には、ストレプトコッカス・ミュータンス等により引き起こされる齲蝕;ポルフィロモナス・ジンジバリス等により引き起こされる歯肉炎、歯骨炎等の歯周病;日和見生物により引き起こされる日和見感染症;肺炎レンサ球菌及びインフルエンザ菌等により引き起こされる急性中耳炎(AOM)及び滲出性中耳炎(OME);インフルエンザ菌により引き起こされるインフルエンザ;ヘリコバクター・ピロリにより引き起こされる十二指腸潰瘍、胃ガン及び胃潰瘍;コレラ菌により引き起こされるコレラ;ペスト菌により引き起こされるペスト;髄膜炎菌により引き起こされる髄膜炎;ネズミチフス菌などのサルモネラ属細菌により引き起こされるサルモネラ中毒;ウェルシュ菌により引き起こされる食中毒、ガス壊疽及び出血性腸炎;及び大腸菌等により引き起こされる下痢症などが挙げられる(後述の実施例、並びにYoshida A.et al.,Appl.Environ.Microbiol.,71(5),p.2372-2380,2005;Wen Z.T.et al.,J.Bacteriol.,189(9),p.2682-2691,2004;Osaki T. et al.,J.Med.Microbiol.,55(Pt11),p.1477-1485,2006;及びOhtani K.et al.,Mol.Microbiol.,44(1),p.171-179,2002等参照)。 Specific examples of infectious diseases that can be prevented and / or treated by administering the active ingredient include infectious diseases in the oral cavity, skin, vagina, digestive (GI) tract, esophagus and respiratory tract. More specifically, caries caused by Streptococcus mutans; periodontal diseases such as gingivitis and gingivitis caused by Porphyromonas gingivalis, etc .; opportunistic infections caused by opportunistic organisms; Streptococcus pneumoniae and Acute otitis media (AOM) and exudative otitis media (OME) caused by Haemophilus influenzae; influenza caused by Haemophilus influenzae; duodenal ulcer, gastric cancer and gastric ulcer caused by Helicobacter pylori; cholera caused by Vibrio cholerae; Plague caused; Meningitis caused by Neisseria meningitidis; Salmonella poisoning caused by Salmonella bacteria such as Salmonella typhimurium; Food poisoning, gas gangrene and hemorrhagic caused by Clostridium perfringens And diarrhea caused by E. coli and the like (Examples described later and Yoshida A. et al., Appl. Environ. Microbiol., 71 (5), p. 2372-2380, 2005; Wen Z T. et al., J. Bacteriol., 189 (9), p.2682-2691, 2004; Osaki T. et al., J. Med.Microbiol., 55 (Pt11), p.1477-1485, 2006; and Ohtani K. et al., Mol. Microbiol., 44 (1), p. 171-179, 2002, etc.).
本明細書において感染症の予防には、感染症の発症を抑えること及び遅延させることが含まれ、感染症になる前の予防だけではなく、治療後の感染症の再発に対する予防も含まれる。本明細書において感染症の治療には、感染症を治癒すること、症状を改善すること及び症状の進行を抑えることが包含される。 In the present specification, prevention of infectious diseases includes suppressing and delaying the onset of infectious diseases, and includes not only prevention before infectious diseases but also prevention of recurrence of infectious diseases after treatment. In the present specification, treatment of an infectious disease includes curing an infectious disease, ameliorating symptoms, and suppressing progression of symptoms.
本発明のAI−2阻害剤の投与対象は、好ましくは哺乳動物である。本明細書において哺乳動物は、温血脊椎動物をさし、例えば、ヒト及びサルなどの霊長類、マウス、ラット及びウサギなどの齧歯類、イヌ及びネコなどの愛玩動物、並びにウシ、ウマ及びブタなどの家畜が挙げられる。本発明のAI−2阻害剤は、霊長類、特にヒトへの投与に好適である。感染症に罹患しているヒト、感染症と診断されているヒト、感染症に罹患する可能性があるヒト、感染症を予防する必要があるヒトに投与することが特に好ましい。 The subject of administration of the AI-2 inhibitor of the present invention is preferably a mammal. As used herein, mammals refer to warm-blooded vertebrates, such as primates such as humans and monkeys, rodents such as mice, rats and rabbits, companion animals such as dogs and cats, and cattle, horses and Examples include livestock such as pigs. The AI-2 inhibitors of the present invention are suitable for administration to primates, particularly humans. It is particularly preferred to administer to a human suffering from an infectious disease, a human being diagnosed with an infectious disease, a human being likely to suffer from an infectious disease, or a human in need of preventing the infectious disease.
本発明のAI−2阻害剤、並びに前記感染症の予防及び/又は治療剤の形態は特に制限されないが、例えば、医薬組成物、食品組成物、口腔用組成物若しくは化粧料組成物とするか、又はこれらに含有させることができる。 The form of the AI-2 inhibitor of the present invention and the prophylactic and / or therapeutic agent for the infectious disease is not particularly limited. Or can be contained in these.
医薬組成物を調製する場合は、通常、前記有効成分と好ましくは薬学的に許容される担体を含む製剤として調製する。薬学的に許容される担体とは、一般的に、前記有効成分とは反応しない、不活性の、無毒の、固体又は液体の、増量剤、希釈剤又はカプセル化材料等をいい、例えば、水、エタノール、ポリオール(例えば、グリセロール、プロピレングリコール、液体ポリエチレングリコールなど)、適切なそれらの混合物、植物性油などの溶媒又は分散媒体などが挙げられる。 When preparing a pharmaceutical composition, it is usually prepared as a preparation containing the active ingredient and preferably a pharmaceutically acceptable carrier. A pharmaceutically acceptable carrier generally refers to an inert, non-toxic, solid or liquid, bulking agent, diluent or encapsulating material that does not react with the active ingredient, eg, water. , Ethanol, polyol (eg, glycerol, propylene glycol, liquid polyethylene glycol, etc.), suitable mixtures thereof, solvents or dispersion media such as vegetable oils, and the like.
医薬組成物は、経口により、非経口により、例えば、皮膚に、皮下に、粘膜に、静脈内に、動脈内に、筋肉内に、腹腔内に、膣内に、肺に、脳内に、眼に、及び鼻腔内に投与される。経口投与製剤としては、錠剤、顆粒剤、細粒剤、散剤、カプセル剤、チュアブル剤、ペレット剤、シロップ剤、液剤、懸濁剤及び吸入剤などが挙げられる。非経口投与製剤としては、坐剤、保持型浣腸剤、点滴剤、点眼剤、点鼻剤、ペッサリー剤、注射剤、口腔洗浄剤並びに軟膏、クリーム剤、ゲル剤、制御放出パッチ剤及び貼付剤などの皮膚外用剤などが挙げられる。本発明の医薬組成物は、徐放性皮下インプラントの形態で、又は標的送達系(例えば、モノクローナル抗体、ベクター送達、イオン注入、ポリマーマトリックス、リポソーム及びミクロスフェア)の形態で、非経口で投与してもよい。 The pharmaceutical composition is orally, parenterally, e.g., into the skin, subcutaneously, mucosal, intravenous, intraarterial, intramuscular, intraperitoneal, intravaginally, pulmonary, intracerebral, Administered to the eye and intranasally. Examples of the preparation for oral administration include tablets, granules, fine granules, powders, capsules, chewables, pellets, syrups, solutions, suspensions and inhalants. As parenteral preparations, suppositories, retention enemas, drops, eye drops, nasal drops, pessaries, injections, mouth washes, ointments, creams, gels, controlled release patches and patches Skin external preparations, and the like. The pharmaceutical compositions of the invention are administered parenterally in the form of sustained-release subcutaneous implants or in the form of targeted delivery systems (eg, monoclonal antibodies, vector delivery, ion implantation, polymer matrices, liposomes and microspheres). May be.
医薬組成物はさらに医薬分野において慣用の添加剤を含んでいてもよい。そのような添加剤には、例えば、賦形剤、結合剤、崩壊剤、滑沢剤、抗酸化剤、着色剤、矯味剤などがあり、必要に応じて使用できる。長時間作用できるように徐放化するためには、既知の遅延剤等でコーティングすることもできる。賦形剤としては、例えば、カルボキシメチルセルロースナトリウム、寒天、軽質無水ケイ酸、ゼラチン、結晶セルロース、ソルビトール、タルク、デキストリン、デンプン、乳糖、白糖、ブドウ糖、メタ珪酸アルミン酸マグネシウム、リン酸水素カルシウム等が使用できる。結合剤としては、例えば、アラビアゴム、アルギン酸ナトリウム、エチルセルロース、カゼインナトリウム、カルボキシメチルセルロースナトリウム、寒天、精製水、ゼラチン、デンプン、トラガント、乳糖等が挙げられる。崩壊剤としては、例えば、カルボキシメチルセルロース、カルボキシメチルセルロースナトリウム、カルボキシメチルセルロースカルシウム、結晶セルロース、デンプン、ヒドロキシプロピルスターチ等が挙げられる。滑沢剤としては、例えば、ステアリン酸、ステアリン酸カルシウム、ステアリン酸マグネシウム、タルク、硬化油、ショ糖脂肪酸エステル、ロウ類等が挙げられる。抗酸化剤としては、トコフェロール、没食子酸エステル、ジブチルヒドロキシトルエン(BHT)、ブチルヒドロキシアニソール(BHA)、アスコルビン酸等が挙げられる。必要に応じてその他の添加剤や薬剤、例えば制酸剤(炭酸水素ナトリウム、炭酸マグネシウム、沈降炭酸カルシウム、合成ヒドロタルサイト等)、胃粘膜保護剤(合成ケイ酸アルミニウム、スクラルファート、銅クロロフィリンナトリウム等)を加えてもよい。 The pharmaceutical composition may further contain additives conventionally used in the pharmaceutical field. Such additives include, for example, excipients, binders, disintegrants, lubricants, antioxidants, colorants, flavoring agents, and the like, and can be used as necessary. In order to achieve sustained release so that it can act for a long time, it can also be coated with a known retarder or the like. Excipients include, for example, sodium carboxymethylcellulose, agar, light anhydrous silicic acid, gelatin, crystalline cellulose, sorbitol, talc, dextrin, starch, lactose, sucrose, glucose, magnesium metasilicate magnesium phosphate, calcium hydrogen phosphate, etc. Can be used. Examples of the binder include gum arabic, sodium alginate, ethyl cellulose, sodium caseinate, sodium carboxymethyl cellulose, agar, purified water, gelatin, starch, tragacanth, and lactose. Examples of the disintegrant include carboxymethyl cellulose, carboxymethyl cellulose sodium, carboxymethyl cellulose calcium, crystalline cellulose, starch, hydroxypropyl starch and the like. Examples of the lubricant include stearic acid, calcium stearate, magnesium stearate, talc, hydrogenated oil, sucrose fatty acid ester, waxes and the like. Examples of the antioxidant include tocopherol, gallic acid ester, dibutylhydroxytoluene (BHT), butylhydroxyanisole (BHA), ascorbic acid and the like. Other additives and drugs as required, such as antacids (sodium bicarbonate, magnesium carbonate, precipitated calcium carbonate, synthetic hydrotalcite, etc.), gastric mucosa protective agents (synthetic aluminum silicate, sucralfate, copper chlorophyllin sodium, etc.) ) May be added.
口腔用組成物には、前記有効成分のほか、その形態に応じて種々の成分を配合することができる。配合可能な成分として、例えば研磨剤、湿潤剤、粘結剤、歯質強化剤、殺菌剤、pH調整剤、酵素類、抗炎症剤・血行促進剤、甘味剤、防腐剤、着色剤・色素類、香料等を適宜使用することができる。
口腔用組成物に配合することができる成分としては、具体的に、第2リン酸カルシウム、第3リン酸カルシウム、ピロリン酸カルシウム、リン酸マグネシウム、不溶性メタリン酸ナトリウム、無水ケイ酸、水酸化アルミニウム、アルミナ、ハイドロキシアパタイト、炭酸カルシウム、炭酸マグネシウム、硫酸カルシウム、ゼオライト、合成アルミノケイ酸塩、ベンガラ等の研磨剤;前記の研磨剤を結合剤を用いて造粒した顆粒状研磨剤;グリセリン、プロピレングリコール、1,3−ブチレングリコール、エチレングリコール、ポリエチレングリコール、ポリプロピレングリコール、ソルビトール等の湿潤剤;モノフルオルリン酸ナトリウム、フッ化スズ、フッ化ナトリウム等の歯質強化剤;クロルヘキシジン及びその塩類、トリクロサン、塩化セチルピリジニウム、チモール類、塩化ベンザルコニウム等の殺菌剤;リン酸ナトリウム等のpH調整剤;デキストラナーゼ、アミラーゼ、プロテアーゼ、リゾチーム、ムタナーゼ等の酵素類;塩化ナトリウム、ヒノキチオール、ε−アミノカプロン酸、トラネキサム酸、アラントイン類、トコフェロール類、オクチルフタリド、ニコチン酸エステル類、ジヒドロコレステロール、グリチルレチン酸、グリチルリチン酸及びその塩類、グリセロホスフェート、クロロフィル、水溶性無機リン酸化合物、アズレン類、カミツレ、センブリ、当帰、センキュウ、生薬類等の抗炎症剤・血行促進剤;サッカリンナトリウム、ステビオサイド、タウマチン、アスパラチルフェニルアラニンメチルエステル等の甘味剤;p−ヒドロキシ安息香酸、p−ヒドロキシ安息香酸エチル、p−ヒドロキシ安息香酸プロピル、p−ヒドロキシ安息香酸ブチル、安息香酸ナトリウム等の防腐剤;二酸化チタン等の着色剤・色素類;ペパーミント油、スペアミント油、メントール、カルボン、アネトール、オイゲノール、サリチル酸メチル、リモネン、オシメン、n−デシルアルコール、シトロネロール、α−テルピネオール、メチルアセテート、シトロネリルアセテート、メチルオイゲノール、シネオール、リナロール、エチルリナロール、ワニリン、チモール、アニス油、レモン油、オレンジ油、セージ油、ローズマリー油、桂皮油、ピメント油、桂葉油、冬緑油、丁子油、ユーカリ油等の香料等が挙げられる。
In addition to the active ingredient, various components can be blended in the oral composition depending on the form. Ingredients that can be incorporated include, for example, abrasives, wetting agents, binders, dentin enhancers, bactericides, pH adjusters, enzymes, anti-inflammatory agents / blood circulation promoters, sweeteners, preservatives, colorants / pigments , Fragrances and the like can be used as appropriate.
Specific components that can be blended in the oral composition include dicalcium phosphate, tricalcium phosphate, calcium pyrophosphate, magnesium phosphate, insoluble sodium metaphosphate, anhydrous silicic acid, aluminum hydroxide, alumina, hydroxyapatite Abrasives such as calcium carbonate, magnesium carbonate, calcium sulfate, zeolite, synthetic aluminosilicate, bengara, etc .; granular abrasives granulated from the above abrasives using a binder; glycerin, propylene glycol, 1,3- Wetting agents such as butylene glycol, ethylene glycol, polyethylene glycol, polypropylene glycol, sorbitol; tooth strengthening agents such as sodium monofluorophosphate, tin fluoride, sodium fluoride; chlorhexidine and its salts, triclosan, Bactericides such as cetylpyridinium, thymols, benzalkonium chloride; pH adjusters such as sodium phosphate; enzymes such as dextranase, amylase, protease, lysozyme, mutanase; sodium chloride, hinokitiol, ε-aminocaproic acid , Tranexamic acid, allantoins, tocopherols, octylphthalide, nicotinic acid esters, dihydrocholesterol, glycyrrhetinic acid, glycyrrhizic acid and its salts, glycerophosphate, chlorophyll, water-soluble inorganic phosphate compounds, azulene, chamomile, assembly, Anti-inflammatory agents and blood circulation promoters such as nematodes and herbal medicines; sweeteners such as saccharin sodium, stevioside, thaumatin, aspartylphenylalanine methyl ester; p-hydroxybenzoic acid, p- Preservatives such as ethyl hydroxybenzoate, propyl p-hydroxybenzoate, butyl p-hydroxybenzoate and sodium benzoate; colorants and pigments such as titanium dioxide; peppermint oil, spearmint oil, menthol, carvone, anethole, eugenol , Methyl salicylate, limonene, ocimene, n-decyl alcohol, citronellol, α-terpineol, methyl acetate, citronellyl acetate, methyl eugenol, cineol, linalool, ethyl linalool, crocodile, thymol, anise oil, lemon oil, orange oil, sage Examples include fragrances such as oil, rosemary oil, cinnamon oil, pimento oil, cinnamon leaf oil, winter green oil, clove oil, and eucalyptus oil.
口腔用組成物には、本発明の効果を損なわない限り、界面活性剤を配合することもできる。界面活性剤としては特に制限はないが、アニオン系界面活性剤及びノニオン系界面活性剤を好ましく用いることができる。 As long as the effects of the present invention are not impaired, a surfactant may be added to the oral composition. Although there is no restriction | limiting in particular as surfactant, Anionic surfactant and a nonionic surfactant can be used preferably.
口腔用組成物は、前記有効成分を配合し、常法により製造することができる。口腔用組成物の形態は特に制限されず、粉歯磨、液状歯磨、練歯磨、潤製歯磨、口腔パスタ等のペースト状洗浄剤、洗口液、マウスウォッシュ等の液状洗浄剤、うがい用錠剤、歯肉マッサージクリーム、チューインガム、トローチ、キャンディ等の食品等の形態とすることができる。 The composition for oral cavity can be manufactured by a conventional method by blending the active ingredients. The form of the composition for oral cavity is not particularly limited, and it is a toothpaste, a liquid toothpaste, a toothpaste, a toothpaste, a paste-like detergent such as oral pasta, a mouthwash, a liquid detergent such as mouthwash, a gargle tablet, It can be in the form of food such as gingival massage cream, chewing gum, troche and candy.
食品組成物を調製する場合、その形態は特に制限されず、飲料も包含される。一般食品の他に、感染症(具体的には歯骨炎などの歯周病等)の予防・改善等をコンセプトとしてその旨を表示した飲食品、すなわち、健康食品、機能性食品、病者用食品及び特定保健用食品なども包含される。健康食品、機能性食品、病者用食品及び特定保健用食品は、具体的には、細粒剤、錠剤、顆粒剤、散剤、カプセル剤、シロップ剤、液剤、流動食等の各種製剤形態として使用することができ、これら製剤のために使用することができる。製剤形態の食品組成物は、医薬製剤と同様に製造することができ、前記有効成分と、食品として許容できる担体、例えば適当な賦形剤(例えば、でん粉、加工でん粉、乳糖、ブドウ糖、水等)等とを混合した後、慣用の手段を用いて製造することができる。さらに、食品組成物は、スープ類、ジュース類、乳飲料、茶飲料、コーヒー飲料、ココア飲料、ゼリー状飲料などの液状食品組成物、プリン、ヨーグルトなどの半固形食品組成物、パン類、うどんなどの麺類、クッキー、チョコレート、キャンディ、ガム、せんべいなどの菓子類、ふりかけ、バター、ジャムなどのスプレッド類等の形態もとりうる。また、食品には、飼料も含まれる。 When preparing a food composition, the form in particular is not restrict | limited, A drink is also included. In addition to general foods, foods and drinks that indicate the concept of prevention / improvement of infectious diseases (specifically periodontal diseases such as gingivitis), that is, health foods, functional foods, sick people Foods for specified use and foods for specified health use are also included. Health foods, functional foods, foods for patients and foods for specified health use are specifically formulated in various forms such as fine granules, tablets, granules, powders, capsules, syrups, liquids, and liquid foods. Can be used for these formulations. A food composition in the form of a preparation can be produced in the same manner as a pharmaceutical preparation. The active ingredient and a carrier acceptable as a food, for example, an appropriate excipient (eg, starch, processed starch, lactose, glucose, water, etc.) ) And the like, and then can be produced using conventional means. In addition, food compositions include soups, juices, milk beverages, tea beverages, coffee beverages, cocoa beverages, jelly-like beverages and other liquid food compositions, pudding, yogurt and other semi-solid food compositions, breads, udon Such as noodles such as cookies, chocolate, candy, gum, rice crackers and the like, spreads such as sprinkles, butter, jam and the like. The food also includes feed.
食品組成物には、種々の食品添加物、例えば、酸化防止剤、香料、各種エステル類、有機酸類、有機酸塩類、無機酸類、無機酸塩類、無機塩類、色素類、乳化剤、保存料、調味料、甘味料、酸味料、果汁エキス類、野菜エキス類、花蜜エキス類、pH調整剤、品質安定剤などの添加剤を単独、あるいは併用して配合してもよい。 Food compositions include various food additives such as antioxidants, fragrances, various esters, organic acids, organic acid salts, inorganic acids, inorganic acid salts, inorganic salts, pigments, emulsifiers, preservatives, seasonings Additives such as additives, sweeteners, acidulants, fruit juice extracts, vegetable extracts, nectar extracts, pH adjusters, and quality stabilizers may be used alone or in combination.
化粧料組成物を調製する場合、その形態は特に制限されず、溶液、乳液、粉末、水−油二層系、水−油−粉末三層系、ゲル、エアゾール、ミスト及びカプセル等任意の形態とすることができる。また、化粧料組成物の製品形態も任意であり、例えば、マッサージ剤及びフットスプレー等のボディー化粧料、化粧水、乳液、クリーム及びパック等のフェーシャル化粧料、ファンデーション、おしろい、頬紅、口紅、アイシャドー、アイライナー、マスカラ及びサンスクリーン等のメーキャップ化粧料、メーク落とし、洗顔料及びボディーシャンプー等の皮膚洗浄料、ヘアーリンス及びシャンプー等の毛髪化粧料、浴用剤、軟膏、医薬部外品、あぶら取り紙、芳香化粧料等が挙げられる。 When preparing a cosmetic composition, the form is not particularly limited, and any form such as a solution, emulsion, powder, water-oil two-layer system, water-oil-powder three-layer system, gel, aerosol, mist, capsule, etc. It can be. The product form of the cosmetic composition is also arbitrary, for example, body cosmetics such as massage agents and foot sprays, facial cosmetics such as lotions, emulsions, creams and packs, foundations, funny, blushers, lipsticks, eye Makeup cosmetics such as shadows, eyeliners, mascaras and sunscreens, makeup removers, skin cleansers such as face wash and body shampoo, hair cosmetics such as hair rinses and shampoos, bath preparations, ointments, quasi drugs, oil Examples include papers and aromatic cosmetics.
化粧料組成物は、化粧品、医薬部外品及び医薬品等に慣用される他の成分、例えば、粉末成分、液体油脂、固体油脂、ロウ、炭化水素、高級脂肪酸、高級アルコール、エステル、シリコーン、アニオン界面活性剤、カチオン界面活性剤、両性界面活性剤、非イオン界面活性剤、保湿剤、水溶性高分子、増粘剤、皮膜剤、紫外線吸収剤、金属イオン封鎖剤、低級アルコール、多価アルコール、糖、アミノ酸、有機アミン、高分子エマルジョン、pH調整剤、皮膚栄養剤、ビタミン、酸化防止剤、酸化防止助剤、香料、水等を必要に応じて配合し、常法により製造することができる。 The cosmetic composition includes other components commonly used in cosmetics, quasi drugs and pharmaceuticals, such as powder components, liquid fats and oils, solid fats and oils, waxes, hydrocarbons, higher fatty acids, higher alcohols, esters, silicones, anions. Surfactant, cationic surfactant, amphoteric surfactant, nonionic surfactant, humectant, water-soluble polymer, thickener, film agent, UV absorber, sequestering agent, lower alcohol, polyhydric alcohol , Sugar, amino acids, organic amines, polymer emulsions, pH adjusters, skin nutrients, vitamins, antioxidants, antioxidant auxiliaries, fragrances, water, etc. may be blended as necessary and manufactured by conventional methods. it can.
その他の化粧料組成物に配合可能な成分としては、例えば、防腐剤(エチルパラベン、ブチルパラベン等)、消炎剤(例えば、グリチルリチン酸誘導体、グリチルレチン酸誘導体、サリチル酸誘導体、ヒノキチオール、酸化亜鉛、アラントイン等)、美白剤(例えば、胎盤抽出物、ユキノシタ抽出物、アルブチン等)、各種抽出物(例えば、オウバク、オウレン、シコン、シャクヤク、センブリ、バーチ、セージ、ビワ、ニンジン、アロエ、ゼニアオイ、アイリス、ブドウ、ヨクイニン、ヘチマ、ユリ、サフラン、センキュウ、ショウキュウ、オトギリソウ、オノニス、ニンニク、トウガラシ、チンピ、トウキ、海藻等)、賦活剤(例えば、ローヤルゼリー、感光素、コレステロール誘導体等)、血行促進剤(例えば、ノニル酸ワレニルアミド、ニコチン酸ベンジルエステル、ニコチン酸β−ブトキシエチルエステル、カプサイシン、ジンゲロン、カンタリスチンキ、イクタモール、タンニン酸、α−ボルネオール、ニコチン酸トコフェロール、イノシトールヘキサニコチネート、シクランデレート、シンナリジン、トラゾリン、アセチルコリン、ベラパミル、セファランチン、γ−オリザノール等)、抗脂漏剤(例えば、硫黄、チアントール等)、抗炎症剤(例えば、トラネキサム酸、チオタウリン、ヒポタウリン等)等が挙げられる。 Examples of other components that can be incorporated into the cosmetic composition include preservatives (ethyl paraben, butyl paraben, etc.), anti-inflammatory agents (eg, glycyrrhizic acid derivatives, glycyrrhetinic acid derivatives, salicylic acid derivatives, hinokitiol, zinc oxide, allantoin, etc. ), Whitening agents (for example, placenta extract, saxifrage extract, arbutin, etc.), various extracts (for example, buckwheat, auren, shikon, peonies, assembly, birch, sage, loquat, carrot, aloe, mallow, iris, grape , Yokuinin, Loofah, Lily, Saffron, Senkyu, Pepper, Hypericum, Onionis, Garlic, Pepper, Chimpi, Toki, Seaweed, etc.), Activator (for example, Royal Jelly, Photosensitizer, Cholesterol Derivative, etc.), Blood circulation promoter (for example, , Wallenylami nonylate Nicotinic acid benzyl ester, nicotinic acid β-butoxyethyl ester, capsaicin, zingerone, cantalis tincture, ictamol, tannic acid, α-borneol, nicotinic tocopherol, inositol hexanicotinate, cyclandrate, cinnarizine, trazoline, acetylcholine, And verapamil, cephalanthin, γ-oryzanol, etc.), antiseborrheic agents (eg, sulfur, thianthol, etc.), anti-inflammatory agents (eg, tranexamic acid, thiotaurine, hypotaurine, etc.).
後述の実施例で示すように、本発明のAI−2阻害剤を適用することにより、歯垢の形成を抑制することができる。これは、AI−2阻害剤を適用することにより、AI−2を介した細菌の種間でのクオラムセンシングが阻害され、歯垢原因物質の産生を抑制するためである。
本発明の歯垢原因物質産生抑制方法において、前記AI−2阻害剤の適用対象に特に制限はなく、ヒト;並びにサルなどの霊長類、マウス、ラット及びウサギなどの齧歯類、イヌ及びネコなどの愛玩動物、並びにウシ、ウマ及びブタなどの家畜等、非ヒト動物が挙げられる。
As shown in Examples described later, the formation of plaque can be suppressed by applying the AI-2 inhibitor of the present invention. This is because application of an AI-2 inhibitor inhibits quorum sensing between bacterial species via AI-2 and suppresses the production of plaque-causing substances.
In the method for inhibiting plaque causative agent production according to the present invention, the application target of the AI-2 inhibitor is not particularly limited, and includes humans; primates such as monkeys; rodents such as mice, rats and rabbits; dogs and cats And non-human animals such as domestic animals such as cattle, horses and pigs.
本発明のAI−2阻害剤における前記有効成分の投与量は、AI−2を阻害しうる量であればよく、投与方法、年齢、症状等により適宜決定することができる。例えば、前記有効成分の質量に基づき、1日あたり、体重1kgあたり、経口投与で通常0.00001〜1mg、好ましくは0.0001〜0.1mgである。 The dose of the active ingredient in the AI-2 inhibitor of the present invention may be an amount that can inhibit AI-2, and can be appropriately determined depending on the administration method, age, symptoms, and the like. For example, based on the mass of the active ingredient, it is usually 0.00001 to 1 mg, preferably 0.0001 to 0.1 mg orally per day per kg of body weight.
本発明のAI−2阻害剤における前記有効成分の含有量は、上記投与量を達成するように適宜決定できる。例えば、本発明のAI−2阻害剤において、前記有効成分の含有量は0.0001〜1質量%が好ましく、0.001〜0.01質量%がより好ましい。 The content of the active ingredient in the AI-2 inhibitor of the present invention can be appropriately determined so as to achieve the above dose. For example, in the AI-2 inhibitor of the present invention, the content of the active ingredient is preferably 0.0001 to 1% by mass, and more preferably 0.001 to 0.01% by mass.
前記有効成分を投与することにより、AI−2を阻害することができ、ひいては、感染症を予防及び/又は治療することができる。 By administering the active ingredient, AI-2 can be inhibited, and thus infection can be prevented and / or treated.
従来、感染症の予防及び治療には抗生物質の投与が行われてきた。しかし細菌が薬剤耐性を獲得するため、抗生物質の効果が減弱してしまう。一方、AI−2を阻害すれば、細菌が本来持つクオラムセンシングシステムを制御し、その病原性を制御することが可能となる。従って、本発明のAI−2阻害剤は、薬剤耐性を持っている細菌にも効果が期待できる。 Conventionally, antibiotics have been administered for the prevention and treatment of infectious diseases. However, since bacteria acquire drug resistance, the effectiveness of antibiotics is diminished. On the other hand, if AI-2 is inhibited, it becomes possible to control the quorum sensing system inherent in bacteria and control its pathogenicity. Therefore, the AI-2 inhibitor of the present invention can be expected to have an effect on bacteria having drug resistance.
以下、本発明を実施例に基づきさらに詳細に説明するが、本発明はこれに限定されるものではない。 EXAMPLES Hereinafter, although this invention is demonstrated further in detail based on an Example, this invention is not limited to this.
試験例1 AI−2活性の測定
AI−2バイオアッセイ系のためのレポーター菌株としてのビブリオ・ハーベイBB170株(ATCC BAA−1117)をMarine Agar 2216培地(商品名、Difco社製)で30℃、好気条件下で培養した。このように培養したビブリオ・ハーベイBB170株の一白金耳をMarine Broth 2216培地(商品名、Difco社製)3mLに植菌し、好気条件下8時間、30℃、200rpmで振盪培養を行った。前記菌液200μLをAB(Autoinducer Bioassay)培地に植菌し、好気条件下16時間、30℃、200rpmで振盪培養を行った。この菌液をAB培地で5000倍に希釈し、レポーター菌液とした。
なお、AB培地は、Mol.Microbiol.,9(4),p.773-786,1993を参照して以下の通り調製した。0.2%Vitamin-free casamino acids(Difco社製)、0.3M NaCl(和光純薬社製)、0.05M MgSO4・7H2O(和光純薬社製)の溶液を任意の濃度のKOH溶液(和光純薬社製)でpH7.5に調整し、オートクレーブ後室温で保存した。この溶液1Lに対し、1Mリン酸カリウムバッファー(1M KH2PO4 21.1mL+1M K2HPO4 28.9mL)10mL、0.1M L−アルギニン(free-base、和光純薬社製)10mL、1mg/mL thiamine HCl(和光純薬社製)1mL、10μg/mL リボフラビン(和光純薬社製)1mL及びグリセロール(和光純薬社製)20mLをよく混和後、濾過滅菌したもの42mLを添加し、AB培地を調製した。
Test Example 1 Measurement of AI-2 Activity Vibrio Harvey BB170 strain (ATCC BAA-1117) as a reporter strain for the AI-2 bioassay system was obtained at 30 ° C. in a Marine Agar 2216 medium (trade name, manufactured by Difco). Cultured under aerobic conditions. One platinum loop of Vibrio Harvey BB170 strain cultured in this way was inoculated into 3 mL of Marine Broth 2216 medium (trade name, manufactured by Difco), and cultured with shaking at 30 ° C. and 200 rpm for 8 hours under aerobic conditions. . 200 μL of the bacterial solution was inoculated on AB (Autoinducer Bioassay) medium, and cultured with shaking at 30 ° C. and 200 rpm for 16 hours under aerobic conditions. This bacterial solution was diluted 5000 times with AB medium to obtain a reporter bacterial solution.
Note that AB medium is obtained from Mol. Microbiol., 9 (4), p. Prepared as follows with reference to 773-786,1993. 0.2% Vitamin-free casamino acids (manufactured by Difco), 0.3M NaCl (manufactured by Wako Pure Chemical Industries, Ltd.), 0.05M MgSO 4 · 7H 2 O (manufactured by Wako Pure Chemical Industries, Ltd.) The pH was adjusted to 7.5 with Kojun Pure Chemicals, and the mixture was stored at room temperature after autoclaving. To 1 L of this solution, 1 M potassium phosphate buffer (1 M KH 2 PO 4 21.1 mL + 1 M K 2 HPO 4 28.9 mL) 10 mL, 0.1 M L-arginine (free-base, manufactured by Wako Pure Chemical Industries) 10 mL, 1 mg / ML thiamine HCl (manufactured by Wako Pure Chemical Industries) 1 mL, 10 μg / mL Riboflavin (manufactured by Wako Pure Chemical Industries) 1 mL and glycerol (manufactured by Wako Pure Chemical Industries, Ltd.) 20 mL are mixed well, then 42 mL of filter sterilized is added, and AB A medium was prepared.
このレポーター菌液と、炭素数4〜12のγ−ラクトンのエタノール/AB培地溶液(曽田香料社より入手、又は花王社製)とを9:1の割合(体積比)で混和し、室温で10分プレインキュベートした。次いで、DPD(OMM Scientificに合成検討を依頼し、同社で合成したものを購入した)を終濃度が10μMとなるように添加し、30℃にて好気振盪培養を行った。4時間後の発光強度をケミルミネッセンス計(ベルトールド社製、Mitharas LB940(商品名))で測定し、AI−2阻害活性を測定した。なお、γ−ラクトンの終濃度が0.01質量%となるように試料を調製した。さらに、AI−2阻害活性は、10μMのDPDが惹起する発光を完全に抑制するときのAI−2阻害活性を100とした場合の相対値で示した。さらに、ポジティブコントロールとして、AI−2阻害化合物として既知の化合物(4-ブロモ-5-(4-メトキシフェニル)-2(5H)-フラノン、Sigma社製、終濃度:10μM、特開2009−114120号公報参照)を用い、同様にAI−2阻害活性を測定した。
その結果を表1に示す。
This reporter bacterial solution is mixed with an ethanol / AB medium solution of γ-lactone having 4 to 12 carbon atoms (obtained from Kaeda Inc. or manufactured by Kao Corporation) at a ratio (volume ratio) of 9: 1, and at room temperature. Pre-incubated for 10 minutes. Next, DPD (OMM Scientific was asked to investigate synthesis and purchased by the company) was added so that the final concentration was 10 μM, and aerobic shaking culture was performed at 30 ° C. The luminescence intensity after 4 hours was measured with a chemiluminescence meter (Mitharas LB940 (trade name), manufactured by Bertolud), and the AI-2 inhibitory activity was measured. A sample was prepared so that the final concentration of γ-lactone was 0.01% by mass. Furthermore, the AI-2 inhibitory activity is shown as a relative value when the AI-2 inhibitory activity when the luminescence caused by 10 μM DPD is completely suppressed is defined as 100. Further, as a positive control, a compound known as an AI-2 inhibitory compound (4-bromo-5- (4-methoxyphenyl) -2 (5H) -furanone, manufactured by Sigma, final concentration: 10 μM, JP 2009-114120 A In the same manner, AI-2 inhibitory activity was measured.
The results are shown in Table 1.
表1の結果から明らかなように、本発明のAI−2阻害剤は、既知のAI−2阻害化合物に比して、同等もしくはそれ以上のAI−2阻害活性を有する。 As is clear from the results in Table 1, the AI-2 inhibitor of the present invention has an AI-2 inhibitory activity equal to or higher than that of known AI-2 inhibitory compounds.
試験例2 抗菌試験(1)
試験例1と同様に調製したレポーター菌液と、炭素数8〜12のγ−ラクトンのエタノール/AB培地溶液とを9:1の割合(体積比)で混和し、好気条件下で30℃、4時間インキュベートした(各化合物の終濃度は0.01質量%)。さらに、培養菌液をAB培地で100〜10000倍に任意に希釈しMarine Agar 2216培地(商品名、Difco社製)に播種し、30℃で1日培養後、コロニー数をカウントし生菌数を算出した。なお、対象試験として、被験品溶液の代わりにAB培地を用いた以外は同様にして生菌数を算出した。
その結果を表2に示す。
Test Example 2 Antibacterial test (1)
A reporter bacterial solution prepared in the same manner as in Test Example 1 and an ethanol / AB medium solution of γ-lactone having 8 to 12 carbon atoms were mixed at a ratio (volume ratio) of 9: 1, and 30 ° C. under aerobic conditions. Incubated for 4 hours (final concentration of each compound was 0.01% by mass). Further, the culture solution is arbitrarily diluted 100 to 10,000 times with AB medium and seeded on Marine Agar 2216 medium (trade name, manufactured by Difco). After culturing at 30 ° C. for 1 day, the number of colonies is counted and the number of viable bacteria is counted. Was calculated. In addition, the viable cell count was calculated in the same manner except that AB medium was used instead of the test product solution as the target test.
The results are shown in Table 2.
表2に示すように、本発明のAI−2阻害剤のレポーター菌に対する抗菌作用は認められなかった。 As shown in Table 2, the antibacterial action against the reporter bacteria of the AI-2 inhibitor of the present invention was not observed.
試験例3 抗菌試験(2)
終濃度が0.01%になるように調製した例示化合物(4)(小林香料株式会社より入手)のエタノール/AB培地溶液400μLと、106-108CFU/mLに調製した、歯周病・齲蝕に関連する細菌の1種であるポリフィロモナス・ジンジバリス(ATCC33277株)、フゾバクテリウム・ヌクレアタム(ATCC10953株)、プレボテラ・インタメディア(ATCC25611株)、アクチノマイセス・ビスコーサス(ATCC43146株)、アクチノマイセス・イスラエリー(ATCC12102株)、アグリゲイティバクター・アクチノミセテムコミタンス(ATCC33384株)、ストレプトコッカス・ミュータンス(JC2株)又はストレプトコッカス・サンギニス(ATCC10556株)の菌液100μLとを30秒攪拌混合した後、任意濃度に希釈し、GAM寒天培地又はBHI寒天培地(それぞれ日水製薬社製)に播種した。37℃で嫌気培養後、生育コロニー数をカウントした。なお、コントロールとして、例示化合物(4)のエタノール/AB培地溶液の代わりに、γ−ラクトンを含まない溶媒を用いて、同様に試験した。
その結果を表3〜10に示す。
Test Example 3 Antibacterial test (2)
Periodontal disease / caries prepared in 400 μL of ethanol / AB medium solution of Exemplified Compound (4) (obtained from Kobayashi Fragrance Co., Ltd.) prepared to a final concentration of 0.01% and 10 6 -10 8 CFU / mL Polyphyromonas gingivalis (ATCC33277), Fusobacterium nucleatum (ATCC10953), Prevotella intermedia (ATCC25611), Actinomyces biscorsus (ATCC43146), Actinomyces After stirring and mixing with 100 μL of the bacterial solution of Isla Ellie (ATCC12102 strain), Aggregate Bacter actinomycetemcomitans (ATCC33384 strain), Streptococcus mutans (JC2 strain) or Streptococcus sanguinis (ATCC10556 strain) for 30 seconds, Dilute to any concentration and seed on GAM agar medium or BHI agar medium (each made by Nissui Pharmaceutical Co., Ltd.) . After anaerobic culture at 37 ° C., the number of growing colonies was counted. In addition, it tested similarly using the solvent which does not contain (gamma) -lactone instead of the ethanol / AB culture solution of exemplary compound (4) as control.
The results are shown in Tables 3-10.
表3〜10に示すように、本発明のAI−2阻害剤の歯周病・齲蝕に関連する細菌に対する抗菌作用は認められなかった。 As shown in Tables 3 to 10, the antibacterial action of the AI-2 inhibitor of the present invention against bacteria related to periodontal disease and caries was not observed.
試験例4 歯周病モデルにおける歯槽骨吸収深度の測定
シリアンハムスター(7週齢、雄)の下顎左右第一臼歯歯頚部に絹糸を結紮し、当日より同結紮部位に、例示化合物(4)(小林香料株式会社より入手)のエタノール/PBS溶液(濃度:0.01質量%)又はエタノール/PBS(コントロール)200μLを1日2回、9日間滴下し、各群5匹にて飼育した。
飼育終了後、麻酔下にて下顎骨を摘出し、被験剤の添加前及び9日間添加後の、摘出下顎骨の舌側面における第一臼歯近心咬頭頂から歯槽骨頂上までの垂直距離から、歯槽骨吸収深度を測定した。
その結果を表11に示す。
Test Example 4 Measurement of alveolar bone resorption depth in a periodontal disease model A silk thread was ligated to the lower left and right first molar teeth and necks of Syrian hamster (7 weeks old, male), and on the same day, the exemplified compound (4) ( 200 μL of ethanol / PBS solution (concentration: 0.01% by mass) or ethanol / PBS (control) was dripped twice a day for 9 days and reared in 5 animals in each group.
After completion of the rearing, the mandible was removed under anesthesia, and the vertical distance from the first molar mesial cusp to the alveolar crest on the lingual side of the extracted mandible before and 9 days after the addition of the test agent, The alveolar bone resorption depth was measured.
The results are shown in Table 11.
表11に示すように、本発明のAI−2阻害剤は、in vivoモデルにおいて歯槽骨吸収を有意に抑制することが示された。したがって、本発明のAI−2阻害剤は、感染症の1種である、歯骨炎等の歯周病の予防及び治療剤として有効である。 As shown in Table 11, the AI-2 inhibitor of the present invention was shown to significantly suppress alveolar bone resorption in an in vivo model. Therefore, the AI-2 inhibitor of the present invention is effective as a prophylactic and therapeutic agent for periodontal diseases such as odontitis, which is a type of infectious disease.
試験例5 ヒトにおける歯垢形成量の測定
健常男性7名を被験者とし、歯科衛生士による歯面清掃処理後、0.01質量%の例示化合物(4)(小林香料社より入手)含有洗口剤、γ-ラクトンを含まないプラセボ洗口剤、又は殺菌剤として既知である塩化セチルピリジニウム(和光純薬社製)の水溶液(濃度:0.05%)を2日間使用させた。所定の時間(歯面清掃直後、並びに毎食後及び就寝前の計9回/2日間)に、前記洗口剤20mLで30秒間の含嗽を行った。歯面清掃処理から約48時間後に、鈴木らの方法(口腔衛生学会誌,20(3),p.9-16,1971)に従い、歯肉辺縁からの歯垢付着距離を測定し、歯垢形成量とした。なお試験は、3品のクロスオーバーとし、ダブルブラインドにて実施した。
その結果を表12に示す。
Test Example 5 Measurement of plaque formation in humans Seven healthy men as subjects, and after tooth surface cleaning treatment by a dental hygienist, 0.01% by weight of the exemplified compound (4) (obtained from Kobayashi Inc.) An aqueous solution (concentration: 0.05%) of a placebo mouthwash that does not contain γ-lactone or cetylpyridinium chloride (manufactured by Wako Pure Chemical Industries), which is known as a bactericidal agent, was used for 2 days. For a predetermined time (immediately after cleaning the tooth surface and after each meal and before going to bed for a total of 9 times / 2 days), the mouthwash was rinsed with 20 mL of the mouthwash for 30 seconds. About 48 hours after the tooth surface cleaning treatment, according to the method of Suzuki et al. (Journal of Oral Hygiene, 20 (3), p.9-16, 1971), the plaque adhesion distance from the gingival margin was measured, The amount of formation. The test was performed with a double blind with three crossovers.
The results are shown in Table 12.
表12の結果から、本発明のAI−2阻害剤は、in vivoモデルにおいて歯垢形成を有意に抑制することが示された。したがって、本発明のAI−2阻害剤は、感染症の1種である歯周病・齲蝕の予防及び治療剤として有効である。 From the results in Table 12, it was shown that the AI-2 inhibitor of the present invention significantly suppresses plaque formation in an in vivo model. Therefore, the AI-2 inhibitor of the present invention is effective as a preventive and therapeutic agent for periodontal disease and caries, which is one type of infectious disease.
試験例6 歯面への細菌吸着試験
ストレプトコッカス・ミュータンス(ATCC25175株)を用いて、10μCi/mL[3H]メチル化チミジン、0.2%グルコース含有Brain Heart Infusion(BHI)培地(BD Pharmingen社製)に接種し、37℃で24時間培養した。遠心分離により菌体を回収し、緩衝KCl溶液(50mM KCl、1mM KPB(pH6.0)、1mM CaCl2、0.1mM MgCl2)にて洗浄後、1×109CFU/mLとなるように0.5%ウシ血清アルブミン含有KCl緩衝液に分散し、[3H]標識ストレプトコッカス・ミュータンス液を調製した。
Test Example 6 Bacterial adsorption test on tooth surface Using Streptococcus mutans (ATCC25175 strain), Brain Heart Infusion (BHI) medium containing 10μCi / mL [ 3 H] methylated thymidine and 0.2% glucose (BD Pharmingen) And inoculated at 37 ° C. for 24 hours. The cells are collected by centrifugation, washed with a buffered KCl solution (50 mM KCl, 1 mM KPB (pH 6.0), 1 mM CaCl 2 , 0.1 mM MgCl 2 ), and 0.5 to 1 × 10 9 CFU / mL. A [ 3 H] -labeled Streptococcus mutans solution was prepared by dispersing in KCl buffer containing% bovine serum albumin.
エナメル質のモデルであるヒドロキシアパタイト平板(HOYA社製、商品名:APP-100)に、ヒト口腔内から採取した耳下腺唾液500μLを添加し、室温で1時間処理した。緩衝KCl溶液で洗浄後、0.01%の例示化合物(4)(小林香料株式会社より入手)のエタノール/蒸留水溶液を1mL添加して、室温で1時間処理した。緩衝KCl溶液で洗浄後、0.5%ウシ血清アルブミン含有KCl緩衝溶液1mLと、前記[3H]標識ストレプトコッカス・ミュータンス液1mLとを添加し、37℃で1時間処理した。緩衝KCl溶液で洗浄後、2N水酸化ナトリウムを添加し70℃で1時間加熱溶解した。2N塩酸を等量添加して中和し、液体シンチレーションカクテル(商品名:Ultima Gold XR、パーキンエルマー社製)を10mL入れ、[3H]放射活性を測定した。測定した放射活性から、歯面に吸着した細菌数を算出した。なお、コントロールとして、例示化合物(4)のエタノール/蒸留水溶液の代わりに蒸留水を用いて、同様に試験した。
その結果を表13に示す。
500 μL of parotid saliva collected from the human oral cavity was added to a hydroxyapatite flat plate (product name: APP-100), which is an enamel model, and treated at room temperature for 1 hour. After washing with a buffered KCl solution, 1 mL of 0.01% ethanol / distilled aqueous solution of Exemplified Compound (4) (obtained from Kobayashi Fragrance Co., Ltd.) was added and treated at room temperature for 1 hour. After washing with a buffered KCl solution, 1 mL of a 0.5% bovine serum albumin-containing KCl buffer solution and 1 mL of the [ 3 H] -labeled Streptococcus mutans solution were added and treated at 37 ° C. for 1 hour. After washing with a buffered KCl solution, 2N sodium hydroxide was added and dissolved by heating at 70 ° C. for 1 hour. An equal amount of 2N hydrochloric acid was added to neutralize, 10 mL of a liquid scintillation cocktail (trade name: Ultima Gold XR, manufactured by PerkinElmer) was added, and [ 3 H] radioactivity was measured. The number of bacteria adsorbed on the tooth surface was calculated from the measured radioactivity. In addition, it tested similarly using distilled water instead of the ethanol / distilled aqueous solution of exemplary compound (4) as control.
The results are shown in Table 13.
表13に示すように、本発明のAI−2阻害剤に、歯周病・齲蝕に関連する細菌が歯面へ吸着する吸着阻害作用は認められない。したがって、本発明のAI−2阻害剤の有効成分は、感染症の原因菌等の細菌に対する増殖・生育抑制能を示すものではない。 As shown in Table 13, the AI-2 inhibitor of the present invention does not have an adsorption inhibitory action for the bacteria related to periodontal disease / caries to be adsorbed to the tooth surface. Therefore, the active ingredient of the AI-2 inhibitor of the present invention does not exhibit the ability to suppress the growth and growth of bacteria such as causative bacteria of infectious diseases.
試験例1〜6の結果から、本発明のAI−2阻害剤は、感染症の原因菌等の細菌に対する殺菌作用を示すものではなく、細菌の種間連絡に利用されるAI−2の活性を阻害することが明らかとなった。さらには、本発明のAI−2阻害剤は、AI−2の活性を阻害することにより、細菌に対する増殖・生育を抑制することなく、歯周病、齲蝕等の予防及び/又は治療することが可能であることが示された。具体的には、本発明のAI−2阻害剤を適用することにより、細菌の生育、増殖に影響を与えることなく、生存する細菌によるAI−2の産生を阻害し、生存する細菌が歯垢原因物質を生成することを抑制し、歯垢の形成を抑制することができる。 From the results of Test Examples 1 to 6, the AI-2 inhibitor of the present invention does not exhibit a bactericidal action against bacteria such as causative bacteria of infectious diseases, and the activity of AI-2 used for bacterial species communication It became clear to inhibit. Furthermore, the AI-2 inhibitor of the present invention can prevent and / or treat periodontal disease, caries and the like without inhibiting the growth and growth of bacteria by inhibiting the activity of AI-2. It was shown to be possible. Specifically, by applying the AI-2 inhibitor of the present invention, the production of AI-2 by living bacteria is inhibited without affecting the growth and proliferation of the bacteria, and the living bacteria become plaque. Generation of causative substances can be suppressed, and plaque formation can be suppressed.
(処方例)
本発明の歯周病又は齲蝕の予防及び/又は治療剤として、下記に示す組成のチューブ入り練歯磨、練歯磨及び樹脂製容器入りマウスウォッシュを常法により各々調製した。
(Prescription example)
As a preventive and / or therapeutic agent for periodontal disease or caries according to the present invention, a toothpaste containing a tube, a toothpaste and a mouthwash containing a resin container having the compositions shown below were prepared in a conventional manner.
処方例1 チューブ入り練歯磨の調製
ソルビトール 35質量%
無水ケイ酸 20質量%
濃グリセリン 5質量%
例示化合物(4) 0.01質量%
カルボキシメチルセルロースナトリウム 1質量%
香料 1質量%
フッ化ナトリウム 0.2質量%
サッカリンナトリウム 0.2質量%
酢酸dl−α−トコフェロール 0.1質量%
精製水 残余
計100質量%
Formulation Example 1 Preparation of toothpaste with tube Sorbitol 35% by mass
Silica anhydride 20% by mass
Concentrated glycerin 5% by mass
Exemplary Compound (4) 0.01% by mass
Carboxymethylcellulose sodium 1% by mass
Fragrance 1% by mass
Sodium fluoride 0.2% by mass
Saccharin sodium 0.2% by mass
Dl-α-tocopherol acetate 0.1% by mass
Purified water residue
100% by mass in total
処方例2 チューブ入り練歯磨の調製
炭酸カルシウム 30質量%
ソルビトール 28質量%
無水ケイ酸 8質量%
濃グリセリン 5質量%
ラウリル硫酸ナトリウム 1.2質量%
カルボキシメチルセルロースナトリウム 1質量%
香料 1質量%
例示化合物(4) 0.01質量%
酢酸dl−α−トコフェロール 0.2質量%
フッ化ナトリウム 0.2質量%
サッカリンナトリウム 0.2質量%
イソプロピルメチルフェノール 0.1質量%
精製水 残余
計100質量%
Formulation Example 2 Preparation of toothpaste with tube Calcium carbonate 30% by mass
Sorbitol 28% by mass
Silica anhydride 8% by mass
Concentrated glycerin 5% by mass
Sodium lauryl sulfate 1.2% by mass
Carboxymethylcellulose sodium 1% by mass
Fragrance 1% by mass
Exemplary Compound (4) 0.01% by mass
Dl-α-Tocopherol acetate 0.2% by mass
Sodium fluoride 0.2% by mass
Saccharin sodium 0.2% by mass
Isopropyl methylphenol 0.1% by mass
Purified water residue
100% by mass in total
処方例3 練歯磨の調製
ソルビトール 25質量%
無水ケイ酸 20質量%
プロピレングリコール 6質量%
ラクチトール 5質量%
カルボキシメチルセルロースナトリウム 1質量%
香料 1質量%
例示化合物(4) 0.01質量%
フッ化ナトリウム 0.2質量%
サッカリンナトリウム 0.2質量%
酢酸dl−α−トコフェロール 0.1質量%
精製水 残余
計100質量%
Formulation Example 3 Preparation of Toothpaste Sorbitol 25% by mass
Silica anhydride 20% by mass
Propylene glycol 6% by mass
Lactitol 5% by mass
Carboxymethylcellulose sodium 1% by mass
Fragrance 1% by mass
Exemplary Compound (4) 0.01% by mass
Sodium fluoride 0.2% by mass
Saccharin sodium 0.2% by mass
Dl-α-tocopherol acetate 0.1% by mass
Purified water residue
100% by mass in total
処方例4 練歯磨の調製
ソルビトール 28質量%
ポリオキシエチレン(200)ポリオキシプロピレン(40)共重合体 16質量%
無水ケイ酸 12質量%
濃グリセリン 8質量%
ラウリル硫酸ナトリウム 1.2質量%
カルボキシメチルセルロースナトリウム 1.5質量%
香料 1質量%
例示化合物(4) 0.01質量%
モノフルオロリン酸ナトリウム 0.7質量%
サッカリンナトリウム 0.2質量%
酢酸dl−α−トコフェロール 0.1質量%
精製水 残余
計100質量%
Formulation Example 4 Preparation of toothpaste sorbitol 28% by mass
16% by mass of polyoxyethylene (200) polyoxypropylene (40) copolymer
Silica anhydride 12% by mass
Concentrated glycerin 8% by mass
Sodium lauryl sulfate 1.2% by mass
Sodium carboxymethylcellulose 1.5% by mass
Fragrance 1% by mass
Exemplary Compound (4) 0.01% by mass
Sodium monofluorophosphate 0.7% by mass
Saccharin sodium 0.2% by mass
Dl-α-tocopherol acetate 0.1% by mass
Purified water residue
100% by mass in total
処方例5 練歯磨の調製
ソルビトール 28質量%
無水ケイ酸 15質量%
ポリエチレングリコール400 8質量%
キシリトール 5質量%
ラウリル硫酸ナトリウム 1.2質量%
カルボキシメチルセルロースナトリウム 1質量%
香料 1質量%
例示化合物(4) 0.01質量%
酢酸dl−α−トコフェロール 0.2質量%
フッ化ナトリウム 0.2質量%
サッカリンナトリウム 0.2質量%
イソプロピルメチルフェノール 0.1質量%
精製水 残余
計100質量%
Formulation Example 5 Preparation of toothpaste Sorbitol 28% by mass
Silica anhydride 15% by mass
Polyethylene glycol 400 8% by mass
Xylitol 5% by mass
Sodium lauryl sulfate 1.2% by mass
Carboxymethylcellulose sodium 1% by mass
Fragrance 1% by mass
Exemplary Compound (4) 0.01% by mass
Dl-α-Tocopherol acetate 0.2% by mass
Sodium fluoride 0.2% by mass
Saccharin sodium 0.2% by mass
Isopropyl methylphenol 0.1% by mass
Purified water residue
100% by mass in total
処方例6 樹脂製容器入りマウスウォッシュの調製
エタノール 15質量%
キシリトール 7質量%
ポリオキシエチレン硬化ヒマシ油 2質量%
サッカリンナトリウム 0.5質量%
例示化合物(4) 0.01質量%
香料 0.2質量%
安息香酸ナトリウム 0.1質量%
酢酸dl−α−トコフェロール 0.05質量%
トリクロサン 0.02質量%
精製水 残余
計100質量%
Formulation Example 6 Preparation of mouthwash in resin container Ethanol 15% by mass
Xylitol 7% by mass
Polyoxyethylene hydrogenated castor oil 2% by mass
Saccharin sodium 0.5% by mass
Exemplary Compound (4) 0.01% by mass
Fragrance 0.2% by mass
Sodium benzoate 0.1% by mass
Dl-α-tocopherol acetate 0.05% by mass
Triclosan 0.02% by mass
Purified water residue
100% by mass in total
Claims (6)
A pharmaceutical composition, food composition or cosmetic composition comprising the autoinducer-2 inhibitor according to claim 1 or 2.
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JP2011118071A JP5946608B2 (en) | 2011-05-26 | 2011-05-26 | Autoinducer-2 inhibitor |
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JP5946608B2 JP5946608B2 (en) | 2016-07-06 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012246235A (en) * | 2011-05-26 | 2012-12-13 | Kao Corp | Autoinducer-2 inhibitor |
WO2024185266A1 (en) * | 2023-03-06 | 2024-09-12 | 星光Pmc株式会社 | Biofilm treatment agent and biofilm treatment method |
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JPS6330409A (en) * | 1986-07-23 | 1988-02-09 | Taiyo Koryo Kk | Agent for inhibiting growth of cariogenic bacteria |
JPH0931020A (en) * | 1995-07-25 | 1997-02-04 | Soda Koryo Kk | Glycerol mono-6-hydroxyalkanoic acid ester, and perfume composition containing the same |
JPH09169624A (en) * | 1995-12-21 | 1997-06-30 | Lion Corp | Antimicrobial agent for oral cavity and composition therefor |
JP2003532698A (en) * | 2000-05-10 | 2003-11-05 | プリンストン ユニバーシティ | Compounds and methods for regulating bacterial growth and pathogenesis |
JP2004018431A (en) * | 2002-06-14 | 2004-01-22 | Kiyomitsu Kawasaki | Perfume composition for oral cavity and oral cavity composition containing the same |
JP2008260785A (en) * | 2008-07-17 | 2008-10-30 | Kao Corp | Aerosol spray composition |
JP2010043031A (en) * | 2008-08-13 | 2010-02-25 | Lion Corp | Liquid oral cavity composition |
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2011
- 2011-05-26 JP JP2011118071A patent/JP5946608B2/en active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS6330409A (en) * | 1986-07-23 | 1988-02-09 | Taiyo Koryo Kk | Agent for inhibiting growth of cariogenic bacteria |
JPH0931020A (en) * | 1995-07-25 | 1997-02-04 | Soda Koryo Kk | Glycerol mono-6-hydroxyalkanoic acid ester, and perfume composition containing the same |
JPH09169624A (en) * | 1995-12-21 | 1997-06-30 | Lion Corp | Antimicrobial agent for oral cavity and composition therefor |
JP2003532698A (en) * | 2000-05-10 | 2003-11-05 | プリンストン ユニバーシティ | Compounds and methods for regulating bacterial growth and pathogenesis |
JP2004018431A (en) * | 2002-06-14 | 2004-01-22 | Kiyomitsu Kawasaki | Perfume composition for oral cavity and oral cavity composition containing the same |
JP2008260785A (en) * | 2008-07-17 | 2008-10-30 | Kao Corp | Aerosol spray composition |
JP2010043031A (en) * | 2008-08-13 | 2010-02-25 | Lion Corp | Liquid oral cavity composition |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012246235A (en) * | 2011-05-26 | 2012-12-13 | Kao Corp | Autoinducer-2 inhibitor |
WO2024185266A1 (en) * | 2023-03-06 | 2024-09-12 | 星光Pmc株式会社 | Biofilm treatment agent and biofilm treatment method |
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