JP7051687B2 - A novel fusion protein containing a transcriptional regulatory domain and a protein-carrying domain of P65 and their uses. - Google Patents
A novel fusion protein containing a transcriptional regulatory domain and a protein-carrying domain of P65 and their uses. Download PDFInfo
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- JP7051687B2 JP7051687B2 JP2018536197A JP2018536197A JP7051687B2 JP 7051687 B2 JP7051687 B2 JP 7051687B2 JP 2018536197 A JP2018536197 A JP 2018536197A JP 2018536197 A JP2018536197 A JP 2018536197A JP 7051687 B2 JP7051687 B2 JP 7051687B2
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Description
特許法第30条第2項適用 平成27年7月6日にウェブサイト(URL:http://dx.doi.org/10.1016/j.bbrc.2015.07.008)にて学術論文(Biochemical and Biophysical Research Communications 第464巻、2015年、第3号、第711~717頁、エルゼビア社出版)を公開 平成27年8月1日発行 ヨンセイ大学大学院 ディビジョン オブ ライフ サイエンス アンド バイオテクノロジー 博士論文 “Therapeutic effect of transducible Smad3 and p65 transcription modulation domain in inflammatory diseases” パク、ソン トン著Application of
本発明は、大韓民国未来創造科学部支援下の課題番号NRF-2014R1A2A1A10052466、2009-0083522(ERC)、10044494、および延世大学支援下の2015-22-0065によって行われたもので、前記課題番号NRF-2014R1A2A1A10052466の研究管理専門機関は「韓国研究財団」、研究事業名は「中堅研究者支援事業」、研究課題名は「免疫活性化制御細胞のTreg合わせ型免疫疾患新素材開発」、主管機関は「延世大学産学協力団」、研究期間は2014年11月1日~2017年10月31日であり、前記課題番号2009-0083522(ERC)の研究管理専門機関は「韓国研究財団」、研究事業名は「韓国研究財団-理工学分野(SRC/ERC)」、研究課題名は「ERC/蛋白質機能制御履行研究センター(3/3、2段階)」、主管機関は「延世大学産学協力団」、研究期間は2009年9月1日~2016年2月29日であり、前記課題番号10044494の研究管理専門機関は「情報通信技術研究振興センター」、研究事業名は「SWコンピューティング産業源泉技術開発事業」、研究課題名は「WiseKB:ビッグデータ理解基盤自己学習型知識ベースおよび推論技術開発」、主管機関は「(株)ソルトルックス」、研究期間は2013年7月1日~2016年2月28日であり、前記課題番号2015-22-0065の研究管理専門機関は「延世大学」、研究事業名は「校内研究支援」、研究課題名は「[未来先導-国際]自己免疫疾患の病因性T細胞subset遺伝子発現を制御できる転写因子機能制御用の個人合わせ型蛋白質新薬開発」、主管機関は「延世大学産学協力団」、研究期間は2015年9月1日~2016年8月31日である。 The present invention was made by Task No. NRF-2014R1A2A1A100522666, 2009-0083522 (ERC), 10041494 with the support of the Faculty of Future Creation Science of the Republic of Korea, and 2015-22-0065 with the support of Ensei University. The research management specialized institution of 2014R1A2A1A10052466 is "Korean Research Foundation", the research project name is "Mid-level Researcher Support Project", the research project name is "Treg-combined immune disease new material development of immune activation control cells", and the main institution is " Ensei University Industry-Academia Cooperation Group ”, the research period is from November 1, 2014 to October 31, 2017, and the research management specialized institution of the above-mentioned project number 2009-0083522 (ERC) is“ Korea Research Foundation ”, research project name. Is "Korean Research Foundation-Science and Engineering Field (SRC / ERC)", the research project name is "ERC / Protein Function Control Implementation Research Center (3/3, 2nd stage)", and the governing body is "Ensei University Industry-Academia Cooperation Group". The research period is from September 1, 2009 to February 29, 2016. The research management specialist organization of the above-mentioned subject number 10041494 is "Information and Communication Technology Research Promotion Center", and the research project name is "SW Computing Industry Source Technology Development". "Business", the research project name is "WiseKB: Big Data Understanding Infrastructure Self-learning Knowledge Base and Inference Technology Development", the main institution is "Soltorx Co., Ltd.", the research period is from July 1, 2013 to February 2016. On the 28th, the research management specialized institution of the above-mentioned subject number 2015-22-0065 is "Ensei University", the research project name is "School Research Support", and the research subject name is "[Future Leading-International] Pathogenesis of Autoimmune Diseases". Development of a new personalized protein for controlling transcription factor function that can control the expression of sex T cell subset gene ”, the governing body is“ Ensei University Industry-Academia Cooperation Group ”, the research period is from September 1, 2015 to August 31, 2016. Is.
本発明は、転写因子NF-κBのサブユニットであるp65の転写調節ドメイン(transcription modulation domain、TMD)と蛋白質運搬ドメイン(protein transduction domain、PTD)とを含む新規融合蛋白質およびその用途に関する。 The present invention relates to a novel fusion protein comprising a transcription regulation domain (TMD) and a protein transport domain (PTD) of p65, which is a subunit of the transcription factor NF-κB, and its use.
転写因子NF-κBによって調節されるサイトカイン(cytokine)は、腫瘍壊死因子-α(tumor necrosis factor-α、TNF-α)、インターロイキン-1(interleukin-1、IL-1)、インターロイキン-6および顆粒球大食細胞コロニー刺激因子(granulocyte-macrophage colony stimulating factor、GM-CSF)などがあり、ケモカイン(chemokine)は、インターロイキン-8、大食細胞炎症蛋白質-1α(macrophage-inflammatory protein-1α、MIP-1α)、走化性調節蛋白質-1(methyl accepting chemotaxis protein-1、MCP-1)およびエオタキシン(eotaxin)などがある。また、NF-κBによって調節される付着分子(adhesion molecule)は、E-セレクチン(E-selectin)、血管細胞付着分子-1(vascular cell adhesion molecule-1、VCAM-1)、内皮白血球付着分子-1(endothelial leukocyte adhesion molecule-1、ELAM-1)および細胞内付着分子-1(intercellular cell adhesion molecule-1、ICAM-1)があり、誘導酵素(inducible enzyme)は、シクロオキシゲナーゼ-2(cyclooxygenase-2、COX-2)などがあり、NF-κBは、体内のほぼすべての生理反応に関与している。 Cytokines regulated by the transcription factor NF-κB are tumor necrosis factor-α (tumor inflammation factor-α, TNF-α), interleukin-1 (interleukin-1, IL-1), interleukin-6. And granulocyte-macrophage colony stimulating factor (GM-CSF), etc. Chemokine is interleukin-8, macrophage-inflat , MIP-1α), methyl-accepting cytokine-1 (MCP-1) and eotaxin. The adhesion molecules regulated by NF-κB are E-selectin, vascular cell adhesion molecule-1 (vascular cell adhesion molecule-1, VCAM-1), and endothelial leukocyte adhesion molecule-. There are 1 (endothelial endothelium molecule-1, ELAM-1) and intracellular adhesion molecule-1 (intercellular cell adhesion molecule-1, ICAM-1), and the inducible enzyme (inducible enzyme-2) is cyclooxygenase-2. , COX-2), etc., and NF-κB is involved in almost all physiological reactions in the body.
転写因子NF-κBは、同種またはヘテロ二量体で構成された、互いに異なるサブユニットから構成されている。NF-κB蛋白質は、RelA(p65)、c-Rel、Rel-B、NF-κB1(p50)およびNF-κB2(p52)が含まれ、前記p50およびp52は、それらの前駆体であるNF-κB1(p105)およびNF-κB2(p100)からそれぞれ生成される。NF-κB蛋白質は、すべてN末端のRHD(Rel-homology domain)と呼ばれる300個のアミノ酸を共通して有しているが、これらは、二量体形成、特定DNAとの結合およびIκB蛋白質との反応に関与する。また、核内に移動して転写因子として作用するための核位置信号(nuclear localization signal、NLS)も含んでいる。そして、NF-κBの構成蛋白質は、C末端のトランスアクチベーションドメイン(transactivation domain、TAD)の存在の有無によってclassI(NF-κB1、NF-κB2)とclassII(RelA/p65、RelB、c-Rel)に区分することができる。classIIは、他のNF-κB構成蛋白質なくても転写因子として作用できるトランスアクチベーションドメインを有しており、classIにはトランスアクチベーションドメインがない。この2種類のNF-κBの間で二量体が形成されてDNA転写因子として作用し、二量体の中でp50/p65の形態が最もありふれて存在する。RelA(p65)、RelBおよびc-Relは、C末端にトランスアクチベーションドメインを有していて、標的遺伝子の発現を活性化することができる。逆に、NF-κB1とNF-κB2であるp50とp52は、C末端にトランスアクチベーションドメインを有しておらず、p50とp52の同種二量体は、トランスアクチベーションドメインを有している補助因子(co-activator)のような蛋白質の結合なしには転写をすることができない。 The transcription factor NF-κB is composed of different subunits composed of homologous or heterodimers. NF-κB proteins include RelA (p65), c-Rel, Rel-B, NF-κB1 (p50) and NF-κB2 (p52), the p50 and p52 being their precursors, NF-. It is produced from κB1 (p105) and NF-κB2 (p100), respectively. All NF-κB proteins share 300 amino acids called N-terminal RHD (Rel-homology domin), which are dimer-forming, binding to specific DNA, and IκB proteins. Involved in the reaction of. It also contains a nuclear localization signal (NLS) to move into the nucleus and act as a transcription factor. The constituent proteins of NF-κB are classI (NF-κB1, NF-κB2) and classII (RelA / p65, RelB, c-Rel) depending on the presence or absence of the C-terminal transactivation domain (TAD). It can be divided into. ClassII has a transactivation domain that can act as a transcription factor without other NF-κB constituent proteins, and classI does not have a transactivation domain. A dimer is formed between these two types of NF-κB and acts as a DNA transcription factor, and the p50 / p65 form is the most common dimer among the dimers. RelA (p65), RelB and c-Rel have a transactivation domain at the C-terminus and can activate the expression of the target gene. Conversely, p50 and p52, which are NF-κB1 and NF-κB2, do not have a transactivation domain at the C-terminus, and homologous dimers of p50 and p52 are cofactors that have a transactivation domain. Transcription is not possible without binding of proteins such as (co-activator).
蛋白質運搬ドメイン(Protein Transduction Domain、PTD)は、疎水性の強い短いペプチドで、共に融合した蛋白質やDNAおよびRNAなどの生理活性分子を細胞内に効果的に伝達することが知られている。本発明者らは、現在まで2種のPTDを開発し、前記PTDは、WO2003059940およびWO2003059941に詳しく開示されている。蛋白質運搬ドメインは、細胞質のみならず、核内にも生理活性分子を運搬できるため、本発明の核心物質である変形した転写因子を核内に伝達するのに適した特性を有している。 The protein transport domain (PTD) is a short peptide with strong hydrophobicity, and it is known that it effectively transfers bioactive molecules such as proteins and DNA and RNA fused together into cells. The present inventors have developed two types of PTDs to date, and the PTDs are disclosed in detail in WO2003059940 and WO2003059941. Since the protein transport domain can transport bioactive molecules not only in the cytoplasm but also in the nucleus, it has a property suitable for transmitting a modified transcription factor, which is the core substance of the present invention, into the nucleus.
したがって、本発明者らは、NF-κBのサブユニットであるp65の転写調節ドメインと蛋白質運搬ドメインとを含む融合蛋白質を用いて、競合阻害によってNF-κBの転写および活性を抑制することにより、NF-κBの過度の活性によって引き起こされる疾患を効果的に治療しようとした。 Therefore, we use a fusion protein containing a transcriptional regulatory domain and a protein-carrying domain of p65, which is a subunit of NF-κB, by inhibiting the transcription and activity of NF-κB by competitive inhibition. Attempts have been made to effectively treat diseases caused by excessive activity of NF-κB.
本明細書全体にわたって多数の論文および特許文献が参照され、その引用が表示されている。引用された論文および特許文献の開示内容はその全体として本明細書に参照として組み込まれ、本発明の属する技術分野における水準および本発明の内容がより明確に説明される。 Numerous articles and patent documents have been referenced and cited throughout the specification. The disclosures of the cited papers and patent documents are incorporated herein by reference in their entirety to more clearly explain the standards in the art to which the invention belongs and the content of the invention.
本発明者らは、NF-κBの過度の活性によって引き起こされる疾患を効果的に予防、改善または治療できる物質を開発すべく、鋭意研究努力した。その結果、NF-κBのサブユニットであるp65の転写調節ドメインと蛋白質運搬ドメインとを含む融合蛋白質を用いる場合、競合阻害によってNF-κBの転写および活性を抑制できることを確認することによって、本発明を完成した。 The present inventors have made diligent research efforts to develop a substance capable of effectively preventing, ameliorating or treating a disease caused by excessive activity of NF-κB. As a result, the present invention confirms that when a fusion protein containing the transcriptional regulatory domain of p65, which is a subunit of NF-κB, and the protein transport domain is used, the transcription and activity of NF-κB can be suppressed by competitive inhibition. Was completed.
したがって、本発明の目的は、NF-κBのサブユニットであるp65の転写調節ドメインと蛋白質運搬ドメインとを含む融合蛋白質を提供することである。 Therefore, an object of the present invention is to provide a fusion protein containing a transcriptional regulatory domain and a protein carrying domain of p65, which is a subunit of NF-κB.
本発明の他の目的は、本発明の融合蛋白質を含むNF-κBの転写または活性抑制剤を提供することである。 Another object of the present invention is to provide a transcription or activity inhibitor of NF-κB containing the fusion protein of the present invention.
本発明のさらに他の目的は、本発明の融合蛋白質を有効成分として含むNF-κBの過活性-関連疾患の予防または治療用薬剤学的組成物を提供することである。 Yet another object of the present invention is to provide a pharmaceutical composition for the prevention or treatment of hyperactivity-related diseases of NF-κB containing the fusion protein of the present invention as an active ingredient.
本発明のさらに他の目的は、NF-κBの転写または活性抑制方法およびNF-κBの過活性-関連疾患の予防、改善または治療方法を提供することである。 Yet another object of the present invention is to provide a method for suppressing transcription or activity of NF-κB and a method for preventing, ameliorating or treating a hyperactivity-related disease of NF-κB.
本発明の他の目的および利点は、下記の発明の詳細な説明、請求の範囲および図面によってより明確になる。 Other objects and advantages of the invention will be further clarified by the detailed description, claims and drawings of the invention below.
本発明の一態様によれば、本発明は、NF-κBのサブユニットであるp65の転写調節ドメインと蛋白質運搬ドメインとを含む融合蛋白質を提供する。本発明の融合蛋白質は、競合阻害によってNF-κBの転写を抑制する。 According to one aspect of the invention, the invention provides a fusion protein comprising a transcriptional regulatory domain and a protein carrying domain of p65, which is a subunit of NF-κB. The fusion protein of the present invention suppresses transcription of NF-κB by competitive inhibition.
本発明者らは、NF-κBの過度の活性によって引き起こされる疾患を効果的に予防、改善または治療できる物質を開発すべく、鋭意研究努力した。その結果、NF-κBのサブユニットであるp65の転写調節ドメインと蛋白質運搬ドメインとを含む融合蛋白質を用いる場合、競合阻害によってNF-κBの転写および活性を抑制できることを確認した。 The present inventors have made diligent research efforts to develop a substance capable of effectively preventing, ameliorating or treating a disease caused by excessive activity of NF-κB. As a result, it was confirmed that when a fusion protein containing the transcriptional regulatory domain of p65, which is a subunit of NF-κB, and the protein transport domain is used, the transcription and activity of NF-κB can be suppressed by competitive inhibition.
本明細書で使われる用語「転写調節ドメイン」は、転写因子を構成するドメインで、トランスアクチベーションドメインなしにDNA結合部位だけで構成されたドメインを意味する。下記の実施例で立証したように、本発明の融合蛋白質は、トランスアクチベーションドメインはないが、DNA結合部位を有しているため、目的のプロモーターに結合することはできるが、転写を促進することができない。したがって、本発明の融合蛋白質は、NF-κB遺伝子に対する優性ネガティブ変異体(dominant negative mutant)であるため、細胞内の野生型NF-κBに対する競合阻害剤として作用して、NF-κBの転写および活性を抑制することができる。 As used herein, the term "transcriptional regulatory domain" is a domain that constitutes a transcription factor and means a domain that is composed solely of DNA binding sites without a transactivation domain. As demonstrated in the examples below, the fusion protein of the invention does not have a transactivation domain but has a DNA binding site, so that it can bind to the promoter of interest but promote transcription. I can't. Therefore, since the fusion protein of the present invention is a dominant negative mutant for the NF-κB gene, it acts as a competitive inhibitor against the intracellular wild-type NF-κB, and is responsible for transcription of NF-κB and transcription of NF-κB. The activity can be suppressed.
本発明の一実施形態によれば、本発明のNF-κBは、RelA(p65)、c-Rel、Rel-B、NF-κB1(p50)およびNF-κB2(p52)から構成された群より選択されたNF-κBである。本発明の特定の実施形態によれば、本発明のNF-κBは、RelA(p65)である。 According to one embodiment of the present invention, NF-κB of the present invention is composed of a group composed of RelA (p65), c-Rel, Rel-B, NF-κB1 (p50) and NF-κB2 (p52). The selected NF-κB. According to a particular embodiment of the invention, the NF-κB of the invention is RelA (p65).
本発明の一実施形態によれば、本発明のNF-κBの転写調節ドメインは、配列リスト第1配列のアミノ酸配列からなる。本発明の他の実施形態によれば、本発明の配列リスト第1配列のアミノ酸配列からなるNF-κBの転写調節ドメインは、配列リスト第3配列のヌクレオチド配列によってコードされる。 According to one embodiment of the present invention, the transcriptional regulatory domain of NF-κB of the present invention consists of the amino acid sequence of the first sequence of the sequence list. According to another embodiment of the present invention, the transcriptional regulatory domain of NF-κB consisting of the amino acid sequence of the first sequence of the sequence list of the present invention is encoded by the nucleotide sequence of the third sequence of the sequence list.
本明細書で使われる用語「蛋白質運搬ドメイン」は、7-50個のアミノ酸からなる、疎水性の強い短いペプチドで、120kDa以上の分子量を、蛋白質のみならず、DNAまたはRNAを細胞内に伝達できるドメインを意味する。下記の実施例で立証したように、本発明の蛋白質運搬ドメインが付着しない蛋白質(つまり、転写調節ドメインだけで構成されたp65-TMD)の場合、本発明の融合蛋白質とは異なり、NF-κBおよびIL-2の転写抑制、LPSによる炎症性サイトカインの分泌抑制、脾臓細胞におけるIL-2、IFN-γ、IL-4、IL-17AおよびIL-10の生成抑制効果がないことを確認することができた。 As used herein, the term "protein-carrying domain" is a short, highly hydrophobic peptide consisting of 7-50 amino acids that transfers a molecular weight of 120 kDa or more, not only protein, but also DNA or RNA into the cell. Means a domain that can be. As demonstrated in the examples below, in the case of a protein to which the protein-carrying domain of the present invention does not adhere (that is, p65-TMD composed only of the transrepression regulatory domain), unlike the fusion protein of the present invention, NF-κB And to confirm that there is no effect of suppressing the transcription of IL-2, suppressing the secretion of inflammatory cytokines by LPS, and suppressing the production of IL-2, IFN-γ, IL-4, IL-17A and IL-10 in spleen cells. Was done.
本発明の一実施形態によれば、本発明の蛋白質運搬ドメインは、Hph-1、Sim-2、Tat、VP22、Antp(antennapedia)、Pep-1(peptide-1)、PTD-5(protein transduction domain-5)、7R、9R、11RおよびCTP(cytoplamic transduction peptide)から構成された群より選択される。本明細書の用語「7R」、「9R」および「11R」は、アルギニン(arginine)がそれぞれ7個、9個および11個から構成されたペプチドを意味する。本発明の特定の実施形態によれば、本発明の蛋白質運搬ドメインは、Hph-1である。 According to one embodiment of the invention, the protein transport domains of the invention are Hph-1, Sim-2, Tat, VP22, Antp (antennapedia), Pept-1 (peptide-1), PTD-5 (protein transduction). It is selected from the group composed of domain-5), 7R, 9R, 11R and CTP (cytoplastic transduction peptide). As used herein, the terms "7R", "9R" and "11R" mean peptides composed of 7, 9 and 11 arginine, respectively. According to a particular embodiment of the invention, the protein carrier domain of the invention is Hph-1.
本発明の一実施形態によれば、本発明の蛋白質運搬ドメインは、配列リスト第2配列のアミノ酸配列からなる。本発明の他の実施形態によれば、本発明の配列リスト第2配列のアミノ酸配列からなる蛋白質運搬ドメインは、配列リスト第4配列のヌクレオチド配列によってコードされる。 According to one embodiment of the present invention, the protein carrying domain of the present invention consists of the amino acid sequence of the second sequence of the sequence list. According to another embodiment of the present invention, the protein carrying domain consisting of the amino acid sequence of the second sequence of the sequence list of the present invention is encoded by the nucleotide sequence of the fourth sequence of the sequence list.
本発明の一実施形態によれば、本発明の融合蛋白質は、配列リスト第5配列のアミノ酸配列を含む。本発明の特定の実施形態によれば、本発明の配列リスト第5配列のアミノ酸配列を含む融合蛋白質は、配列リスト第6配列のヌクレオチド配列によってコードされる。
According to one embodiment of the invention, the fusion protein of the invention comprises the amino acid sequence of
本発明の他の態様によれば、本発明は、本発明の融合蛋白質を含むNF-κBの転写または活性抑制剤を提供する。下記の実施例で立証したように、本発明の融合蛋白質は、NF-κBおよびIL-2の転写および活性を抑制し(図6)、LPSによる炎症性サイトカインの分泌抑制し(図7)、脾臓細胞における抗-CD3/CD28で刺激されたT細胞の活性化によって発現するIL-2、IFN-γ、IL-4、IL-17AおよびIL-10の生成を抑制して(図9)、NF-κBによるT細胞の増殖、分化および炎症性サイトカインの分泌誘導活性を抑制できることを確認し、したがって、NF-κBの過度の活性によって引き起こされる疾患を効果的に予防、改善または治療できることを確認することができた。 According to another aspect of the invention, the invention provides a transcription or activity inhibitor of NF-κB comprising the fusion protein of the invention. As demonstrated in the examples below, the fusion proteins of the invention suppress the transcription and activity of NF-κB and IL-2 (FIG. 6) and suppress the secretion of inflammatory cytokines by LPS (FIG. 7). Suppressing the production of IL-2, IFN-γ, IL-4, IL-17A and IL-10 expressed by anti-CD3 / CD28-stimulated T cell activation in spleen cells (FIG. 9). Confirmed that NF-κB can suppress T cell proliferation, differentiation and inflammatory cytokine secretion-inducing activity, and therefore can effectively prevent, ameliorate or treat diseases caused by excessive activity of NF-κB. We were able to.
発明のさらに他の態様によれば、本発明は、本発明の融合蛋白質を有効成分として含む、NF-κBの過活性-関連疾患の予防または治療用薬剤学的組成物を提供する。 According to still another aspect of the invention, the invention provides a pharmaceutical composition for the prevention or treatment of overactivity-related diseases of NF-κB comprising the fusion protein of the invention as an active ingredient.
本明細書で使われた用語、「治療」は、(a)疾患、疾病または症状の進行の抑制;(b)疾患、疾病または症状の軽減;または(c)疾患、疾病または症状を除去することを意味する。本発明の組成物は、代謝疾患の症状の進行を抑制するか、これを除去または軽減させる役割を果たす。したがって、本発明の組成物は、それ自体でNF-κBの過活性-関連疾患の治療用組成物になってもよく、あるいは他のNF-κBの過活性-関連疾患の治療用組成物と共に投与され、これら疾患に対する治療補助剤として適用されてもよい。そこで、本明細書において、用語「治療」または「治療剤」は、「治療補助」または「治療補助剤」の意味を含む。 As used herein, the term "treatment" is used to (a) suppress the progression of a disease, disease or symptom; (b) alleviate the disease, illness or symptom; or (c) eliminate the disease, illness or symptom. Means that. The compositions of the present invention serve to suppress, eliminate or alleviate the progression of symptoms of metabolic disorders. Accordingly, the compositions of the invention may themselves be NF-κB hyperactivity-therapeutic compositions of related diseases, or together with other NF-κB hyperactivity-therapeutic compositions of related diseases. It may be administered and applied as a therapeutic adjunct to these diseases. Therefore, in the present specification, the term "treatment" or "therapeutic agent" includes the meaning of "therapeutic aid" or "therapeutic agent".
下記の実施例で立証したように、本発明の融合蛋白質は、NF-κBおよびIL-2の転写を抑制し、LPSによる炎症性サイトカインの分泌を抑制し、脾臓細胞におけるIL-2、IFN-γ、IL-4、IL-17AおよびIL-10の生成を抑制する。したがって、本発明の融合蛋白質は、多様なNF-κBの過活性-関連疾患の効率的な予防または治療組成物として有用に利用可能である。 As demonstrated in the examples below, the fusion proteins of the invention suppress the transcription of NF-κB and IL-2, suppress the secretion of inflammatory cytokines by LPS, and IL-2, IFN- in spleen cells. It suppresses the production of γ, IL-4, IL-17A and IL-10. Therefore, the fusion proteins of the present invention can be usefully used as an efficient prophylactic or therapeutic composition for various NF-κB hyperactivity-related diseases.
本発明の一実施形態によれば、本発明のNF-κBの過活性-関連疾患は、炎症疾患または自己免疫疾患である。本発明の他の実施形態によれば、本発明のNF-κBの過活性-関連疾患は、敗血症性ショック、アレルギー性喘息、アレルギー性鼻炎、アトピー性皮膚炎、全身性紅斑性狼瘡、リウマチ関節炎、潰瘍性大腸炎、涙腺炎、アルツハイマー疾患、脳卒中、動脈硬化症、血管再狭窄、I型糖尿病、II型糖尿病、蕁麻疹、結膜炎、乾癬、全身性炎症反応症候群、多発性筋炎、皮膚筋炎、結節性多発関節炎、混合結合組織症、シェーグレン症候群、痛風、パーキンソン病、筋萎縮性側索硬化症、糖尿性網膜症、多発性硬化症、クローン病、慢性甲状腺炎、セリアック病、重症筋無力症、尋常性天疱瘡、ウイルス疾患、細菌性疾患、放射線による障害、動脈硬化、血管腫、血管線維腫、再潅流障害および心臓肥大症から構成される群より選択される疾患である。本発明の特定の実施形態によれば、本発明のNF-κBの過活性-関連疾患は、敗血症性ショックである。微生物に感染して全身に深刻な炎症反応が現れる敗血症性ショックは、血管を循環する内毒素と炎症媒介物質によって心脈管系と血管運動因子の異常症状が現れる。これによって脱水と血管内液体の流出による低血量症が発生し、毛細管上に血管の収縮と弛緩が起こって血液の供給に異常が生じ、血管炎と血栓は組織への還流をさらに困難にして、最終的に、組織に低酸素症と代謝性酸症を誘発させる。特に、内毒素は、兔疫細胞(大食細胞、顆粒細胞、樹枝状細胞、リンパ球)でNF-κBを活性化させて、腫瘍壊死因子、インターロイキン1と6のようなサイトカインを分泌させ、このようなサイトカインは、好中球、内皮細胞、血小板、または炎症媒介因子を放出する細胞を刺激して全身的な反応が現れる。下記の実施例で立証したように、本発明の融合蛋白質は、LPSによって誘導した敗血症ショック動物モデルにおいて炎症性サイトカインの分泌を抑制し、生存率を増加させることを確認した(図10)。
According to one embodiment of the invention, the hyperactivity-related disease of NF-κB of the present invention is an inflammatory disease or an autoimmune disease. According to other embodiments of the invention, the hyperactivity-related diseases of NF-κB of the invention are septic shock, allergic asthma, allergic rhinitis, atopic dermatitis, systemic erythema cyst, rheumatoid arthritis. , Ulcering colitis, lacrimal adenitis, Alzheimer's disease, stroke, arteriosclerosis, vascular restenosis, type I diabetes, type II diabetes, urticaria, conjunctivitis, psoriasis, systemic inflammatory reaction syndrome, polymyositis, dermatitis, Nodular polyarthritis, mixed connective tissue disease, Schegren's syndrome, gout, Parkinson's disease, muscular atrophic lateral sclerosis, diabetic retinopathy, multiple sclerosis, Crohn's disease, chronic thyroiditis, Celiac's disease, severe myasthenia , Vulgaris vulgaris, viral disease, bacterial disease, radiation disorder, arteriosclerosis, hemangiomas, vascular fibroma, reperfusion disorder and cardiac hypertrophy. According to a particular embodiment of the invention, the hyperactivity-related disease of NF-κB of the invention is septic shock. In septic shock, which is infected with microorganisms and causes a serious inflammatory reaction throughout the body, abnormal symptoms of the cardiovascular system and vasomotor factors appear due to endotoxins circulating in blood vessels and inflammation mediators. This causes hypoxia due to dehydration and outflow of intravascular fluid, causing constriction and relaxation of blood vessels on the capillaries, resulting in abnormal blood supply, and vasculitis and thrombi make it more difficult to return to tissue. Finally, it induces hypoxia and metabolic acid disease in the tissue. In particular, endotoxin activates NF-κB in epidemic cells (large phagocytic cells, granule cells, dendritic cells, lymphocytes) to secrete cytokines such as tumor necrosis factor,
したがって、本発明によれば、本発明の融合蛋白質は、NF-κBの過活性-関連疾患を予防または治療する効果がある。 Therefore, according to the present invention, the fusion protein of the present invention has the effect of preventing or treating the hyperactivity-related disease of NF-κB.
本発明の組成物が薬剤学的組成物として製造される場合、本発明の薬剤学的組成物は、薬剤学的に許容される担体を含む。本発明の薬剤学的組成物に含まれる薬剤学的に許容される担体は、製剤時に通常用いられるものであって、ラクトース、デキストロース、スクロース、ソルビトール、マンニトール、デンプン、アカシアガム、リン酸カルシウム、アルギネート、ゼラチン、ケイ酸カルシウム、微細結晶性セルロース、ポリビニルピロリドン、セルロース、水、シロップ、メチルセルロース、メチルヒドロキシベンゾエート、プロピルヒドロキシベンゾエート、滑石、ステアリン酸マグネシウムおよびミネラルオイルなどを含むが、これらに限定されるものではない。本発明の薬剤学的組成物は、前記成分のほか、潤滑剤、湿潤剤、甘味剤、香味剤、乳化剤、懸濁剤、保存剤などを追加的に含んでもよい。好適な薬剤学的に許容される担体および製剤は、Remington’s Pharmaceutical Sciences(19th ed.,1995)に詳しく記載されている。 When the composition of the invention is produced as a pharmaceutical composition, the pharmaceutical composition of the invention comprises a pharmaceutically acceptable carrier. The pharmaceutically acceptable carriers contained in the pharmaceutical composition of the present invention are those usually used at the time of formulation, and are usually used at the time of formulation, such as lactose, dextrose, syrup, sorbitol, mannitol, starch, acacia gum, calcium phosphate, alginate, and the like. Includes, but is not limited to, gelatin, calcium silicate, microcrystalline cellulose, polyvinylpyrrolidone, cellulose, water, syrup, methylcellulose, methylhydroxybenzoate, propylhydroxybenzoate, talc, magnesium stearate and mineral oil. not. In addition to the above-mentioned components, the pharmaceutical composition of the present invention may additionally contain a lubricant, a wetting agent, a sweetening agent, a flavoring agent, an emulsifier, a suspending agent, a preservative and the like. Suitable pharmaceutically acceptable carriers and formulations are described in detail in Remington's Pharmaceutical Sciences (19th ed., 1995).
本発明の薬剤学的組成物は、経口または非経口投与することができ、非経口投与の場合には、静脈内注入、皮下注入、筋肉注入、腹腔注入、経皮投与などで投与することができる。本発明の一実施形態によれば、本発明の薬剤学的組成物は、腹腔注入によって投与される。 The pharmaceutical composition of the present invention can be administered orally or parenterally, and in the case of parenteral administration, it may be administered by intravenous injection, subcutaneous injection, intramuscular injection, intraperitoneal injection, transdermal administration, or the like. can. According to one embodiment of the invention, the pharmaceutical composition of the invention is administered by peritoneal infusion.
本発明の薬剤学的組成物の好適な投与量は、製剤化方法、投与方式、患者の年齢、体重、性、病的状態、飲食、投与時間、投与経路、排泄速度および反応感応性のような要因によって多様に処方可能である。本発明の薬剤学的組成物の1日投与量は、例えば、0.0001-1000mg/kgである。 Suitable doses of the pharmaceutical composition of the present invention include formulation method, administration method, patient age, body weight, sex, pathological condition, eating and drinking, administration time, administration route, excretion rate and reaction sensitivity. It can be prescribed in various ways depending on various factors. The daily dose of the pharmaceutical composition of the present invention is, for example, 0.0001-1000 mg / kg.
本発明の薬剤学的組成物は、当該発明の属する技術分野における通常の知識を有する者が容易に実施できる方法により、薬剤学的に許容される担体および/または賦形剤を用いて製剤化することにより、単位用量の形態で製造されるか、または多用量容器内に入れられて製造される。この時、剤形は、オイルまたは水性媒質中の溶液、懸濁液、シロップ剤または乳化液の形態であるか、エキス剤、散剤、粉末剤、顆粒剤、錠剤またはカプセル剤の形態であってもよいし、分散剤または安定化剤を追加的に含んでもよい。 The pharmaceutical composition of the present invention is formulated with a pharmaceutically acceptable carrier and / or excipient by a method that can be easily carried out by a person having ordinary knowledge in the technical field to which the invention belongs. By doing so, it is manufactured in the form of a unit dose or placed in a multi-dose container. At this time, the dosage form is in the form of a solution, suspension, syrup or emulsion in an oil or aqueous medium, or in the form of an extract, powder, powder, granule, tablet or capsule. It may be added with a dispersant or a stabilizer.
本発明のNF-κBの転写または活性抑制剤、そしてNF-κBの過活性-関連疾患の予防または治療用薬剤学的組成物は、上述した融合蛋白質と共通するため、前記融合蛋白質との関係において共通する内容は、本発明の過度の複雑性を回避するためにその記載を省略する。 Since the transcriptional or activity inhibitor of NF-κB of the present invention and the pharmaceutical composition for preventing or treating overactivity of NF-κB-related diseases are common to the above-mentioned fusion proteins, the relationship with the fusion proteins. In order to avoid excessive complexity of the present invention, the contents common to the above are omitted.
本発明のさらに他の態様によれば、本発明は、本発明の融合蛋白質を有効成分として含む組成物を投与する段階を含む、NF-κBの転写または活性抑制方法を提供する。 According to still another aspect of the invention, the invention provides a method of inhibiting transcription or activity of NF-κB comprising administering a composition comprising the fusion protein of the invention as an active ingredient.
本発明のさらに他の態様によれば、本発明は、本発明の融合蛋白質を有効成分として含む組成物を、これを必要とする個体に投与する段階を含む、NF-κBの過活性-関連疾患の予防、改善または治療方法を提供する。 According to still another aspect of the invention, the invention comprises the step of administering a composition comprising the fusion protein of the invention as an active ingredient to an individual in need thereof-related to overactivity of NF-κB. Provide methods for preventing, ameliorating or treating diseases.
本明細書で使われた用語、「投与」または「投与する」は、本発明の組成物の治療的有効量を、前記組成物を必要とする個体(つまり、対象体)に直接的に投与することにより、対象の体内で同量が形成されるようにすることをいう。したがって、用語「投与」は、本発明の有効成分(本発明の融合蛋白質)を病変部位に注入することを含むので、用語「投与する」は、「注入する」と同じ意味で使われる。 As used herein, the term "administer" or "administer" is a therapeutically effective amount of the composition of the invention administered directly to an individual (ie, subject) in need of said composition. By doing so, it means that the same amount is formed in the body of the subject. Therefore, the term "administer" includes injecting the active ingredient of the invention (the fusion protein of the invention) into the lesion site, so the term "administer" is used interchangeably with "inject".
組成物の「治療的有効量」は、組成物を投与しようとする個体に治療的または予防的効果を提供するのに十分な抽出物の含有量を意味し、よって、「予防的有効量」を含む意味である。本明細書で使われた用語、「個体」は、制限なく、ヒト、マウス、ラット、ギニーピッグ、イヌ、ネコ、ウマ、ウシ、ブタ、サル、チンパンジー、ヒヒまたはアカゲザルを含む。具体的には、本発明の個体は、ヒトである。 A "therapeutically effective amount" of a composition means the content of an extract sufficient to provide a therapeutic or prophylactic effect to the individual to whom the composition is to be administered, and thus a "prophylactically effective amount". It means to include. As used herein, the term "individual" includes, without limitation, humans, mice, rats, guinea pigs, dogs, cats, horses, cows, pigs, monkeys, chimpanzees, baboons or rhesus monkeys. Specifically, the individual of the present invention is a human.
本発明のNF-κBの転写または活性抑制方法、そしてNF-κBの過活性-関連疾患の予防、改善または治療方法は、上述した融合蛋白質およびその用途を共通するため、前記融合蛋白質、NF-κBの転写または活性抑制およびNF-κBの過活性-関連疾患と共通する内容は、本発明の過度の複雑性を回避するためにその記載を省略する。 The fusion protein, NF- Content in common with κB transcription or activity suppression and NF-κB hyperactivity-related diseases is omitted to avoid excessive complexity of the invention.
本発明の特徴および利点をまとめると、次の通りである:
(a)本発明は、NF-κBのサブユニットであるp65の転写調節ドメインと蛋白質運搬ドメインとを含む融合蛋白質およびその用途を提供する。
(b)本発明の融合蛋白質は、競合阻害によってNF-κBおよびIL-2の転写を抑制し、LPSによる炎症性サイトカインの分泌を抑制し、脾臓細胞におけるIL-2、IFN-γ、IL-4、IL-17AおよびIL-10の生成を抑制する効果があることから、NF-κBの過活性-関連疾患の予防または治療組成物として有用に利用可能である。
The features and advantages of the present invention can be summarized as follows:
(A) The present invention provides a fusion protein containing a transcriptional regulatory domain and a protein-carrying domain of p65, which is a subunit of NF-κB, and uses thereof.
(B) The fusion protein of the present invention suppresses the transcription of NF-κB and IL-2 by competitive inhibition, suppresses the secretion of inflammatory cytokines by LPS, and IL-2, IFN-γ, IL- in spleen cells. 4. Since it has an effect of suppressing the production of IL-17A and IL-10, it can be usefully used as a preventive or therapeutic composition for NF-κB hyperactivity-related diseases.
以下、実施例を通じて本発明をより詳細に説明する。これらの実施例は単に本発明をより具体的に説明するためのものであり、本発明の要旨により本発明の範囲がこれらの実施例によって制限されないことは、当業界における通常の知識を有する者にとって自明であろう。 Hereinafter, the present invention will be described in more detail through examples. These examples are merely for the purpose of explaining the present invention more specifically, and it is a person having ordinary knowledge in the art that the scope of the present invention is not limited by these examples by the gist of the present invention. Will be self-explanatory.
[実施例1:p65の転写調節ドメインと蛋白質運搬ドメインとを含む組換え融合蛋白質の製造]
蛋白質運搬ドメイン(PTD)のHph-1(配列リスト第4配列)を、p65の転写調節ドメインのp65-TMD(配列リスト第2配列)とpET-28a(+)ベクター(Novagen)にクローニングして、組換え融合DNA(nt-p65-TMD)(配列リスト第6配列)を製作した。前記組換え融合DNAをBL21CodonPlus(DE3)-RIPL大腸菌菌株(Invitogen)に形質転換させた。前記形質転換菌株を培養した後、1mM IPTG(isopropyl-β-D-thiogalactopyranoside、Duchefa)を入れて、37℃で5時間蛋白質を発現するように誘導した。その後、細胞のみを集めて分解用緩衝液(10mM イミダゾール、50mM NaH2PO4、300mM NaClおよびpH8.0)に溶解させた後、粉砕機で細胞を分解させた。融合蛋白質は、蛋白質の前部分に人為的に結合させておいた6個のヒスチジン(Histidine)を用いてNi-NTAビーズ(Qiagen)と結合させた。カラム(HisTrap chromatography columns、Bio-Rad)に蛋白質を入れて洗浄用緩衝液(30mM イミダゾール、50mM NaH2PO4、300mM NaClおよびpH8.0)で十分に洗浄し、溶出用緩衝液(250mM イミダゾール、50mM NaH2PO4、300mM NaClおよびpH8.0)で蛋白質を分離した。PD-10Sephadex G-25(GE Healthcare)を用いて緩衝液を10%グリセロールPBSに切り替えながらイミダゾールとNaClを除去した。得られた蛋白質にはLPSのようなエンドトキシンが存在するので、これを除去するために、SPビーズ(SP SepharoseTM Fast Flow、GE Healthcare)によりもう一度精製をした。これを再び結合用緩衝液(50mM NaH2PO4、300mM NaCl、pH6.0)で結合させた後、これをカラムに入れて溶出用緩衝液(50mM NaH2PO4、2M NaCl、pH6.0)で蛋白質を分離した。最後に、PD-10Sephadex G-25によりNaClを除去し、緩衝液を10%グリセロールPBSに切り替えた後、最終的に得られた蛋白質(配列リスト第5配列、組換え融合蛋白質)は実験前まで80℃で保管した(図1および2参照)。
[Example 1: Production of a recombinant fusion protein containing a transcriptional regulatory domain and a protein-carrying domain of p65]
Hph-1 (sequence 4th sequence) of the protein carrier domain (PTD) was cloned into p65-TMD (sequence list 2nd sequence) and pET-28a (+) vector (Novagen) of the transcriptional regulatory domain of p65. , Recombinant fusion DNA (nt-p65-TMD) (Sequence list 6th sequence) was produced. The recombinant fusion DNA was transformed into BL21CodonPlus (DE3) -RIPL E. coli strain (Invitogen). After culturing the transformed strain, 1 mM IPTG (isopropanol-β-D-thiogalactopylanoside, Duchefa) was added to induce protein expression at 37 ° C. for 5 hours. Then, only the cells were collected and dissolved in a degradation buffer (10 mM imidazole, 50 mM NaH 2 PO 4 , 300 mM NaCl and pH 8.0), and then the cells were degraded by a pulverizer. The fusion protein was bound to Ni-NTA beads (Qiagen) using 6 histidines that had been artificially bound to the anterior portion of the protein. Put the protein in a column (HisTrap chromatography colons, Bio-Rad), wash thoroughly with wash buffer (30 mM imidazole, 50 mM NaH 2 PO 4 , 300 mM NaCl and pH 8.0), and wash thoroughly with elution buffer (250 mM imidazole, Bio-Rad). Proteins were separated with 50 mM NaH 2 PO 4 , 300 mM NaCl and pH 8.0). Imidazole and NaCl were removed while switching the buffer to 10% glycerol PBS using PD-10 Sephadex G-25 (GE Healthcare). Since endotoxin such as LPS is present in the obtained protein, it was purified again with SP beads (SP Sepharose TM Fast Flow, GE Healthcare) in order to remove it. This was bound again with a binding buffer (50 mM NaH 2 PO 4 , 300 mM NaCl, pH 6.0), then placed in a column and eluted with an elution buffer (50 mM NaH 2 PO 4 , 2M NaCl, pH 6.0). ) Separated the protein. Finally, after removing NaCl with PD-10 Sephadex G-25 and switching the buffer to 10% glycerol PBS, the finally obtained protein (
[実施例2:nt-p65-TMD組換え融合蛋白質の細胞内伝達の確認]
(2-1.ウェスタンブロットを利用した細胞内伝達の確認)
BV2ミクログリア細胞とジャーカット(Jurkat)T細胞を用いて、実施例1のnt-p65-TMDを濃度別(0、0.1、0.5、1、2および5μM)または時間別(0、1、2、4、6、12、24および48h)に組換え融合蛋白質と共に培養し、ウェスタンブロットで蛋白質伝達の有無を確認した。
その結果、濃度に比例してよく伝達されることを確認し、48時間後にも細胞培養液内で蛋白質が構造をよく維持しつつ持続的に伝達されることを確認した(図3参照)。
[Example 2: Confirmation of intracellular transmission of nt-p65-TMD recombinant fusion protein]
(2-1. Confirmation of intracellular transmission using Western blotting)
Using BV2 microglial cells and Jurkat T cells, nt-p65-TMD of Example 1 was subjected to concentration (0, 0.1, 0.5, 1, 2 and 5 μM) or time (0, 0, 1, 2, 4, 6, 12, 24 and 48h) were cultured with the recombinant fusion protein, and the presence or absence of protein transmission was confirmed by Western blot.
As a result, it was confirmed that the protein was transmitted well in proportion to the concentration, and it was confirmed that the protein was continuously transmitted in the cell culture medium while maintaining the structure well even after 48 hours (see FIG. 3).
(2-2.抗体を用いて細胞の核まで伝達されるか否かの確認)
実施例1のnt-p65-TMD組換え融合蛋白質5μMを、1時間、BV2ミクログリア細胞およびHeLa細胞と共に培養をし、PBSで洗った後、0.2%Triton X-100(Sigma-Aldrich)を用いて細胞に隙間を設けた後、その間に蛍光標識抗体を前記組換え融合蛋白質に結合させた。次に、DAPI染色剤(Invitrogen)を用いて細胞の核を染色した後、蛍光顕微鏡により蛍光の位置を確認して、組換え融合蛋白質が伝達された位置を確認した。
(2-2. Confirmation of whether or not it is transmitted to the nucleus of the cell using an antibody)
5 μM of the nt-p65-TMD recombinant fusion protein of Example 1 was cultured with BV2 microglial cells and HeLa cells for 1 hour, washed with PBS, and then 0.2% Triton X-100 (Sigma-Aldrich) was added. After making a gap in the cells using the cell, a fluorescently labeled antibody was bound to the recombinant fusion protein between them. Next, after staining the nucleus of the cell with a DAPI stain (Invitrogen), the position of fluorescence was confirmed with a fluorescence microscope to confirm the position where the recombinant fusion protein was transmitted.
その結果、融合蛋白質はPTDの性質によって細胞の核までよく伝達されたことを確認した(図4参照)。 As a result, it was confirmed that the fusion protein was well transmitted to the nucleus of the cell due to the nature of PTD (see FIG. 4).
[実施例3:nt-p65-TMD組換え融合蛋白質の細胞毒性の確認]
大腸菌菌株から発現して得た蛋白質からLPSが完全に除去されて細胞や動物で毒性を示さないことを確認するために、細胞毒性テストを行った。BV2ミクログリア細胞および脾臓細胞に多様な濃度の蛋白質を伝達した後に、生きている細胞に存在するジヒドロゲナーゼによって色を示す基質のWST-8を入れて共に培養した。
[Example 3: Confirmation of cytotoxicity of nt-p65-TMD recombinant fusion protein]
A cytotoxicity test was performed to confirm that LPS was completely removed from the protein expressed from the E. coli strain and showed no toxicity in cells or animals. After transmitting various concentrations of protein to BV2 microglial cells and spleen cells, WST-8, a substrate colored by dihydrogenase present in living cells, was added and cultured together.
その結果、処理した融合蛋白質の濃度に関係なく、蛋白質を処理しない細胞と比較して全く毒性を示さないことを確認することができた(図5参照)。 As a result, it was confirmed that regardless of the concentration of the treated fusion protein, it showed no toxicity as compared with the cells not treated with the protein (see FIG. 5).
[実施例4:nt-p65-TMD組換え融合蛋白質の転写因子の特異的抑制効果の確認]
(4-1.HEK293T細胞におけるNF-κBおよびIL-2の転写抑制効果の確認)
実施例1のnt-p65-TMD組換え融合蛋白質がNF-κBおよびIL-2サイトカイン遺伝子のプロモーターに野生型p65の代わりに結合して発現を抑制するかを直接的に確認するために、ルシフェラーゼレポーター遺伝子(luciferase reporter gene)を用いた。まず、HEK293T細胞に、下位にルシフェラーゼを有するNF-κBおよびIL-2プロモーターと野生型p65遺伝子を核内注入(transfection)した後、nt-p65-TMD組換え融合蛋白質で処理した。
[Example 4: Confirmation of specific inhibitory effect of transcription factor of nt-p65-TMD recombinant fusion protein]
(4-1. Confirmation of transcriptional repressive effect of NF-κB and IL-2 on HEK293T cells)
To directly confirm whether the nt-p65-TMD recombinant fusion protein of Example 1 binds to the promoters of the NF-κB and IL-2 cytokine genes instead of wild-type p65 and suppresses its expression, luciferase. A reporter gene (luciferase promoter gene) was used. First, HEK293T cells were transfected with the NF-κB and IL-2 promoters having luciferase at the lower level and the wild-type p65 gene, and then treated with the nt-p65-TMD recombinant fusion protein.
その結果、組換え融合蛋白質で処理した場合に、ルシフェラーゼの発現が効果的に抑制されたことを確認することができた。これは、nt-p65-TMDが野生型p65の競合阻害剤として作用してNF-κBおよびIL-2プロモーターのp65の結合サイトを塞いだことを意味する(図6参照)。 As a result, it was confirmed that the expression of luciferase was effectively suppressed when treated with the recombinant fusion protein. This means that nt-p65-TMD acted as a competitive inhibitor of wild-type p65 and blocked the binding site of p65 of the NF-κB and IL-2 promoters (see FIG. 6).
(4-2.BV2ミクログリア細胞における炎症性サイトカインの分泌抑制効果の確認)
BV2ミクログリア細胞に、実施例1のnt-p65-TMD組換え融合蛋白質を処理した後、1時間後にLPS(1μg/ml、E.coli serotype O55:B5、Sigma-Aldrich)を処理して24時間培養した。
(4-2. Confirmation of inflammatory cytokine secretion inhibitory effect on BV2 microglial cells)
BV2 microglial cells were treated with the nt-p65-TMD recombinant fusion protein of Example 1 and then treated with LPS (1 μg / ml, E. coli serotype O55: B5, Sigma-Aldrich) 1 hour later for 24 hours. It was cultured.
その結果、LPSによって活性化されて発現するTNF-α、IL-1βおよびIL-6がnt-p65-TMD組換え融合蛋白質によって発現が抑制されたことを確認することができた(図7参照)。 As a result, it was confirmed that the expression of TNF-α, IL-1β and IL-6 activated and expressed by LPS was suppressed by the nt-p65-TMD recombinant fusion protein (see FIG. 7). ).
(4-3.ジャーカットT細胞におけるNF-κBの転写因子の特異的抑制効果の確認)
実施例1のnt-p65-TMD組換え融合蛋白質が抗CD3(1μg/ml、BD Pharmingen)および抗CD28(1μg/ml、BD Pharmingen)で刺激されたジャーカットT細胞の活性化によって活性化されたNF-κBの転写を特異的に抑制するか否かを確認した。T細胞が活性化されると、NF-κBのみならず、NFATの転写も活性化されるため、nt-p65-TMD融合蛋白質がNFATの転写には影響を及ぼさずにNF-κBだけを抑制する場合、nt-p65-TMD組換え融合蛋白質がNF-κBに特異的な競合阻害剤として作用することを確認することができる。したがって、これを確認するために、ルシフェラーゼレポーター遺伝子を用いた。まず、ジャーカットT細胞に、下位にルシフェラーゼを有するNF-κBおよびNFATレポーター遺伝子を、電気穿孔法(elctroporation)を利用して核内注入した後、抗CD3および抗CD28で刺激されたジャーカットT細胞をnt-p65-TMD組換え融合蛋白質で処理した。
(4-3. Confirmation of specific inhibitory effect of NF-κB transcription factor on Jurkat T cells)
The nt-p65-TMD recombinant fusion protein of Example 1 was activated by activation of Jurkat T cells stimulated with anti-CD3 (1 μg / ml, BD Pharmingen) and anti-CD28 (1 μg / ml, BD Pharmingen). It was confirmed whether or not the transcription of NF-κB was specifically suppressed. When T cells are activated, not only NF-κB but also NFAT transcription is activated, so that the nt-p65-TMD fusion protein suppresses only NF-κB without affecting the transcription of NFAT. If so, it can be confirmed that the nt-p65-TMD recombinant fusion protein acts as a competitive inhibitor specific to NF-κB. Therefore, a luciferase reporter gene was used to confirm this. First, NF-κB and NFAT reporter genes having lower luciferases were intranuclearly injected into Jurkat T cells using an electric perforation method, and then Jurkat T stimulated with anti-CD3 and anti-CD28. Cells were treated with nt-p65-TMD recombinant fusion protein.
その結果、組換え融合蛋白質を処理したNF-κBの場合に、ルシフェラーゼの発現が効果的に抑制されたが、NFATには影響を及ぼさないことを確認することができた(図8A参照)。 As a result, it was confirmed that the expression of luciferase was effectively suppressed in the case of NF-κB treated with the recombinant fusion protein, but it did not affect NFAT (see FIG. 8A).
(4-4.細胞内信号伝達蛋白質のリン酸化)
実施例1のnt-p65-TMD組換え融合蛋白質が細胞内の多様な信号伝達体系に関連する蛋白質のチロシンリン酸化に関与するかを確認するために、ウェスタンブロットを利用した。ジャーカットT細胞にnt-p65-TMD 2μMを1時間処理した後、抗CD3(2.5μg/ml)および抗CD28(2.5μg/ml)で刺激を与えて、ZAP-70、p38、JNKおよびERKのチロシンリン酸化の有無を観察した。
(4-4. Phosphorylation of intracellular signal transduction protein)
Western blotting was used to confirm whether the nt-p65-TMD recombinant fusion protein of Example 1 is involved in tyrosine phosphorylation of proteins associated with various intracellular signaling systems. Jurkat T cells were treated with nt-p65-
その結果、nt-p65-TMDはこれらのリン酸化には影響を及ぼさないことを確認することができた(図8B参照)。 As a result, it was confirmed that nt-p65-TMD did not affect these phosphorylations (see FIG. 8B).
(4-5.脾臓細胞におけるサイトカインIL-2、IFN-γ、IL-4、IL-17AおよびIL-10の生成抑制)
6-8週齢の雌C57BL/6マウスの脾臓から脾臓細胞を分離し、実施例1のnt-p65-TMDを1時間処理して、組換え融合蛋白質を細胞内に伝達した。この細胞を抗CD3(1μg/ml)および抗CD28(1μg/ml)で刺激した後、72時間培養した。その後、培養液に存在するサイトカインの量を、ELISAを利用して測定した。
(4-5. Suppression of production of cytokines IL-2, IFN-γ, IL-4, IL-17A and IL-10 in spleen cells)
Spleen cells were isolated from the spleen of 6-8 week old female C57BL / 6 mice and treated with nt-p65-TMD of Example 1 for 1 hour to transfer the recombinant fusion protein into the cells. The cells were stimulated with anti-CD3 (1 μg / ml) and anti-CD28 (1 μg / ml) and then cultured for 72 hours. Then, the amount of cytokines present in the culture medium was measured using ELISA.
その結果、nt-p65-TMDを処理した場合、IL-2、IFN-γ、IL-4、IL-17AおよびIL-10の発現量が大きく抑制されることを確認することができた。また、T細胞活性化の指標になるCD69の発現量をFACS Calibur(BD Biosciences)を用いて確認した結果、nt-p65-TMDはT細胞におけるCD69の発現には影響を及ぼさないことを確認することができた(図9参照)。 As a result, it was confirmed that when nt-p65-TMD was treated, the expression levels of IL-2, IFN-γ, IL-4, IL-17A and IL-10 were significantly suppressed. In addition, as a result of confirming the expression level of CD69, which is an index of T cell activation, using FACS Calibur (BD Biosciences), it is confirmed that nt-p65-TMD does not affect the expression of CD69 in T cells. I was able to do it (see Fig. 9).
[実施例5:敗血症ショック動物モデルにおけるnt-p65-TMDの治療効果の確認]
6-8週齢の雄BALB/cマウスにLPS(20mg/kg)を腹腔注入して、敗血症ショック動物モデルにした。その後、2時間、14時間経過時、それぞれ実施例1のnt-p65-TMD組換え融合蛋白質を腹腔内注入し、6日間観察した。
[Example 5: Confirmation of therapeutic effect of nt-p65-TMD in a septic shock animal model]
LPS (20 mg / kg) was intraperitoneally injected into 6-8 week old male BALB / c mice to create a septic shock animal model. Then, after 2 hours and 14 hours, the nt-p65-TMD recombinant fusion protein of Example 1 was intraperitoneally injected and observed for 6 days.
その結果、nt-p65-TMDを処理した場合、炎症性サイトカインであるTNF-α、IL-1βおよびIL-6の分泌を抑制して、それによる生存率が大きく増加したことを確認することができた(図10参照)。 As a result, it can be confirmed that when nt-p65-TMD was treated, the secretion of the inflammatory cytokines TNF-α, IL-1β and IL-6 was suppressed, and the survival rate was greatly increased. It was done (see Fig. 10).
[実施例6:組換え融合蛋白質の急性毒性実験]
大韓実験供給センターから供給された6週齢の特定病原体不在(specific pathogen-free、SPF)SD系ラットを用いて、急性毒性実験を下記のように行った:各グループあたり2匹ずつの動物に、本発明の実施例1の組換え融合蛋白質を1g/kgの用量で1回経口投与後、動物のへい死の有無、臨床症状および体重変化を観察し、血液学的検査と血液生化学的検査を実施し、解剖して、肉眼で腔臓器と胸腔臓器の異常の有無を観察した。
[Example 6: Acute toxicity experiment of recombinant fusion protein]
Acute toxicity studies were performed using 6-week-old specific pathogen-free (SPF) SD-series rats supplied by the Korea Experimental Supply Center as follows: 2 animals per group. After oral administration of the recombinant fusion protein of Example 1 of the present invention at a dose of 1 g / kg once, the presence or absence of mortality of animals, clinical symptoms and changes in body weight were observed, and hematological and biochemical tests were performed. Was performed and dissected, and the presence or absence of abnormalities in the cavity and thoracic organs was observed with the naked eye.
その結果、実験物質を投与したすべての動物で特異的な臨床症状やへい死した動物はおらず、体重変化、血液検査、血液生化学検査および解剖と所見などからも毒性変化は観察されなかった。したがって、本発明の実施例1の組換え融合蛋白質はラットでそれぞれ1g/kgまでも毒性を示しておらず、経口投与の最小致死量(LD50)が1g/kg以上である安全な物質と判断されることを確認することができた。 As a result, none of the animals treated with the experimental substance had specific clinical symptoms or died, and no toxic changes were observed from body weight changes, blood tests, blood biochemical tests and anatomy and findings. Therefore, the recombinant fusion protein of Example 1 of the present invention is not toxic to rats up to 1 g / kg, respectively, and is a safe substance having a minimum lethal dose (LD 50 ) of 1 g / kg or more for oral administration. I was able to confirm that it was judged.
(参考文献)
Park et al., Intranuclear interactomic inhibition of NF-kB suppresses LPS-induced severe sepsis, Biochemical and Biophysical Research Communications, 2015;464:711-717.
(Reference)
Park et al., Intranuclear interactomic inhibition of NF-kB suppresses LPS-induced severe sepsis, Biochemical and Biophysical Research Communications, 2015; 464: 711-717.
以上、本発明の特定部分を詳細に述べたが、当業界における通常の知識を有する者にとってこのような具体的な記述は単に好ましい実施形態に過ぎず、これによって本発明の範囲が制限されない点は明らかである。したがって、本発明の実質的な範囲は、添付した請求項とその等価物によって定義されるべきであろう。 Although the specific parts of the present invention have been described in detail above, such a specific description is merely a preferred embodiment for a person having ordinary knowledge in the art, and this does not limit the scope of the present invention. Is clear. Therefore, the substantial scope of the invention should be defined by the appended claims and their equivalents.
Claims (5)
前記融合蛋白質は、NF-κBの転写調節ドメインおよび蛋白質運搬ドメインを含み、
前記融合蛋白質は、競合阻害によってNF-κBの転写を抑制し、
前記融合蛋白質は、配列リスト第5配列のアミノ酸配列からなり、
前記NF-κBの過活性-関連疾患は、炎症疾患または自己免疫疾患であることを特徴とする、組成物。 A pharmaceutical composition comprising a fusion protein as an active ingredient for the prevention or treatment of NF-κB hyperactivity-related diseases.
The fusion protein comprises a transcriptional regulatory domain and a protein transport domain of NF-κB.
The fusion protein suppresses the transcription of NF-κB by competitive inhibition,
The fusion protein consists of the amino acid sequence of the 5th sequence in the sequence list.
The composition, wherein the overactive-related disease of NF-κB is an inflammatory disease or an autoimmune disease.
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