この作業はPCにNIHの助成金DK080351によってサポートされていました。

実験的なプロトコルこの実験的なプロトコルの最初のステップは、マウスの下垂体腺の大きい数を集めることです。第二段階は、タンパク質の抽出液を調製するために腺を均質化するためです。第三段階は、油性混合物で、これらのタンパク質を乳化することです。 ステップ1：マウスの​​下垂体腺の収集と保管マウス下垂体は視交叉によって三叉神経と前方で横方向に囲まれたトルコ鞍と呼ばれる蝶形骨、のうつ病における頭蓋底に位置しています。腺が大きく前葉と小さな後、中間葉で構成され、平均1.9ミリグラムの重されている。下垂体は、動物のケア施設で安楽死される運命、混合系統、性別、および年齢のマウスから収集されます。 下垂体を単離するために、マウスは、解剖頭蓋骨上記の皮膚を安楽死させ、頭蓋骨の骨は、はさみで開いてカットされます。脳は、その後、周囲の硬膜から分離された下垂体を、公開する持ち上げたちょう形骨の外スクープとドライアイス上にプラスチック製のチューブに格納されています。 一般的に我々は一つのタンパク質の準備、9時間で一人で収集することができる数は300、マウス下垂体腺を使用してください。 収集が完了すると、下垂体腺を含むチューブを-80℃で保存された·次のステップの準備ができるまでのC。 ステップ2。マウス下垂体タンパク質の抽出<ol><li> 15 mlのファルコンチューブ（カタログ番号352059）に均質化緩衝液を追加すると、収集された100下垂体のためにバッファを250μlを用いて、氷浴中で保管。細胞の細胞質（0.2 M）の内側と生理的pH（7.4）の生理的に存在しているものと同様のイオン強度のバッファーを使用してください。我々は、リン酸塩を使用して緩衝生理食塩水（0.161 M、pH7.4）に、プロテアーゼ阻害剤カクテル（Sigma - Aldrich社、カタログ番号P8340 - 1mLの）で補足。 </li><li>ちょうど均質化する前にバッファに下垂体腺を追加し、その後、ファルコンチューブの一番下にポリトロンホモジナイザーの発電機（5 mmの直径）を置きます。氷浴中でそれを保ちながら優しく上下ファルコンチューブを移動させる、30秒間、最大rpmでホモジナイズする。その後、1分間氷上でホモジネートを置きます。均質化と冷却のステップをさらに2回繰り返します。この穏やかな均質化は、細胞を破壊し、核を中断することなく、細胞質タンパク質を解放する必要があります。 </li><li>核、切れ目のない組織と不溶性の物質を（そのような結合組織や変性タンパク質の複合体として）を削除するには、4℃で10分間、低速（千グラム）でホモジネートを遠心</li><li> 、新たなファルコンチューブに（今PNS、ポスト核上清と呼ばれる）上清を移すペレットはそのままにするように注意して、氷上でPNSを保存する。 </li><li>均質化緩衝液の元のボリューム（収集された100下垂体のためのバッファを250μL）でペレットを再懸濁し、上記のように均質化する、最初のもので2 PNSを結合して上記のように遠心分離、および。 </li><li> -80℃で遠心チューブとストアへのアリコートをプールされたうちの2つのPNSサンプル° Cの次のステップの準備ができるまで。このタンパク質調製物を-80℃で保存できますCが徐々にその効力を失いますので、準備から6ヶ月以内にそれを使用することをお勧めします。ゲル電気泳動によってBCAアッセイ（Pierceのカタログがない。23225）、及びタンパク質の品質によってタンパク質の収量と濃度を決定するために小型のアリコートを使用してください。一般的に、我々は、40 mg / mLの周りの濃度で、均質化緩衝液を1.5mLで300マウスの下垂体からのタンパク質の約60 mgを得た。 </li></ol>ステップ3。予防接種のためのエマルションの調製<ol><li>急速に実験に必要な冷凍タンパク質のアリコートを解凍し、20 mg / mLのためにタンパク質の濃度を調整する。このタンパク質抽出物は、結核菌を（Becton Dickinson社、231141）殺された熱の5mg / mLを含む完全フロイントアジュバント（CFA、シグマF - 5881）と1:1で乳化されます。各マウスは、乳剤の100μLの下垂体抽出物1mgを受け取ります。 </li><li>ここに示した例では、各マウスは下垂体タンパク質1mgを含有するエマルジョンを100μLを注入される10匹のマウスを、免疫するためです。準備中のマテリアルロスの2つの余分なマウスを許可するため、下垂体タンパク質の12 mgを使用してください。 20 mg / mlの下垂体タンパク質の抽出物のアスパイア600μLを2.5 mLのハミルトン気密注射器を使用して上記の説明。振とうしてCFAを再懸濁し、そして別の2.5mLのハミルトンシリンジにCFA 600μLを目指します。 CFAで満たされたシリンジに22ゲージのマイクロ乳化針を取り付け、固定します。ゆっくりと針がCFAで満たされているようなCFAの注射器のプランジャーを押し、その後のもう一方の端を接続し、確保する下垂体抽出液で満たされた注射器の針。 </li><li>徐々にのみ少量混合されていることなどacqueous下垂体抽出物、中に油成分をプッシュするCFAの注射器のプランジャーを進めます。その後、CFAの注射器に下垂体抽出物の注射器のプランジャーを押し戻す。徐々に混合材料の量を増加させるこの操作を繰り返します。 2つのシリンジの内容全体が混合されるまで続けます。あなたは、油中水滴型エマルションを表す白っぽいし、均等に分散されたソリューションが得られます。 </li><li>エマルジョンが形成されると、エマルジョンが十分に混合されるように、少なくとも500回の往復運動を繰り返す。最終的なミキシングサイクルの後、1:1油中水型エマルジョンを使用する準備ができましたし、10 mg / mLの下垂体タンパク質濃度が含まれています。エマルジョンは、コンパニオンのjoveの記事で詳しく説明、皮下麻酔SJLマウスに同じ日に注入される。 </li></ol>

<ol>
	<li>Caturegli, P., Newschaffer, C., Olivi, A., Pomper, M. G., Burger, P. C., Rose, N. R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=.">.</a> Autoimmune Hypophysitis Endocr Rev. 26, 599-614 (2005).</li><li>Blansfield, J. A., Beck, K. E., Tran, K., Yang, J. C., Hughes, M. S., Kammula, U. S., Royal, R. E., Topalian, S. L., Haworth, L. R., Levy, C., Rosenberg, S. A., Sherry, R. M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Cytotoxic+T-lymphocyte-associated+antigen-4+blockage+can+induce+autoimmune+hypophysitis+in+patients+with+metastatic+melanoma+and+renal+cancer.">Cytotoxic T-lymphocyte-associated antigen-4 blockage can induce autoimmune hypophysitis in patients with metastatic melanoma and renal cancer.</a> J Immunother. 28, 593-598 (2005).</li><li>Tzou, S. C., Lupi, I., Landek, M., Gutenberg, A., Tzou, Y. M., Kimura, H., Pinna, G., Rose, N. R., Caturegli, P. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Autoimmune+Hypophysitis+of+SJL+mice:+Clinical+Insights+from+a+New+Animal+Model.">Autoimmune Hypophysitis of SJL mice: Clinical Insights from a New Animal Model.</a> Endocrinology. 149, 3461-3469 (2008).</li><li>Goudie, R. B., Pinkerton, P. H. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Anterior+hypophysitis+and+Hashimoto's+disease+in+a+woman.">Anterior hypophysitis and Hashimoto's disease in a woman.</a> J Pathol Bacteriol. 83, 584-585 (1962).</li><li>Caturegli, P. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Autoimmune+hypophysitis:+an+underestimated+disease+in+search+of+its+autoantigen(s).">Autoimmune hypophysitis: an underestimated disease in search of its autoantigen(s).</a> J Clin Endocrinol Metab. 92, 2038-2040 (2007).</li></ol>

利害の衝突は宣言されません。

自己免疫性下垂体炎による最初の患者は1962年4に報告されているにもかかわらず、病原体抗原5をまだ明らかにされないままである。動物モデルは、患者のケアに翻訳可能なバイオマーカーの発見を助ける、これらの自己抗原を識別するために非常に便利です。この記事では、実験動物における自己免疫性下垂体炎を誘発するための適切な形式で下垂体タンパク質を調製するた...

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preparation of mouse pituitary immunogen for the induction of experimental autoimmune hypophysitis

自己免疫性下垂体炎は自己免疫1によって引き起こされるかを伴う下垂体の慢性炎症です。それは伝統的に稀な疾患と考えられてきたが、レポートでは、近年著しく増加している。下垂体炎は、実際には、そのようなCTLA - 4 2とPD - 1受容体としてTリンパ球上に発現する抑制性受容体をブロックする抗体を、治療を受けたがん患者の&quot;副作用&quot;として、稀にではない開発しています。自己免疫性下垂体炎はアジュバント3と混合下垂体タンパク質をマウスに注射することによって実験的に誘導することができる。このビデオの記事では、マウスの下垂体腺と方法SJLマウスにおける自己免疫性下垂体炎を誘発するのに適した形でそれらを準備してからタンパク質を抽出する方法を示します。

Watch this Scientific Journal Video about Preparation of Mouse Pituitary Immunogen for the Induction of Experimental Autoimmune Hypophysitis at JoVE.com

Preparation of Mouse Pituitary Immunogen for the Induction of Experimental Autoimmune Hypophysitis

自己免疫性下垂体炎は、マウス下垂体タンパク質の抽出物を注入することにより、マウスで再現することができる。

実験的自己免疫性下垂体炎の誘導のためのマウス下垂体免疫原の調製

Autoimmune hypophysitis is a chronic inflammation of the pituitary gland caused or accompanied by autoimmunity1.  It has traditionally been considered a ...

preparation-mouse-pituitary-immunogen-for-induction-experimental

Research

JoVE Journal

Immunology and Infection

14.5K ビュー.  The Johns Hopkins University. 自己免疫性下垂体炎は、マウス下垂体タンパク質の抽出物を注入することにより、マウスで再現することができる。

ビデオ: Preparation of Mouse Pituitary Immunogen for the Induction of Experimental Autoimmune Hypophysitis

Induction of Experimental Autoimmune Hypophysitis in SJL Mice

Autoimmune hypophysitis can be reproduced experimentally by the injection of pituitary proteins mixed with an adjuvant into susceptible mice1. Mouse models allow us to study how diseases unfold, often providing a good replica of the same processes occurring in humans. For some autoimmune diseases, like type 1A diabetes, there are models (the NOD mouse) that spontaneously develop a disease similar to the human counterpart. For many other autoimmune diseases, however, the model needs to be induced experimentally. A common approach in this regard is to inject the mouse with a dominant antigen derived from the organ being studied. For example, investigators interested in autoimmune thyroiditis inject mice with thyroglobulin2, and those interested in myasthenia gravis inject them with the acetylcholine receptor3. If the autoantigen for a particular autoimmune disease is not known, investigators inject a crude protein extract from the organ targeted by the autoimmune reaction. For autoimmune hypophysitis, the pathogenic autoantigen(s) remain to be identified4, and thus a crude pituitary protein preparation is used. In this video article we demonstrate how to induce experimental autoimmune hypophysitis in SJL mice.

This video shows how to induce autoimmune hypophysitis in SJL mice and how to assess its severity by histopathology.

SJLマウスにおける実験的自己免疫性下垂体炎の誘導

Autoimmune hypophysitis can be reproduced experimentally by the injection of pituitary proteins mixed with an adjuvant into susceptible mice1. Mouse ...

免疫・感染学

Isolation of Infiltrating Leukocytes from Mouse Skin Using Enzymatic Digest and Gradient Separation

Dissociating murine skin into a single cell suspension is essential for downstream cellular analysis such as the characterization of infiltrating immune cells in rodent models of skin inflammation. Here, we describe a protocol for the digestion of mouse skin in a nutrient-rich solution with collagenase D, followed by separation of hematopoietic cells using a discontinuous density gradient. Cells thus obtained can be used for in vitro studies, in vivo transfer, and other downstream cellular and molecular analyses including flow cytometry. This protocol is an effective and economical alternative to expensive mechanical dissociators, specialized separation columns, and harsher trypsin- and dispase-based digestion methods, which may compromise cellular viability or density of surface proteins relevant for phenotypic characterization or cellular function. As shown here in our representative data, this protocol produced highly viable cells, contained specific immune cell subsets, and had no effect on integrity of common surface marker proteins used in flow cytometric analysis.

This protocol describes enzymatic digestion of mouse skin in nutrient-rich medium followed by gradient separation to isolate leukocytes. Cells thus derived can be used for diverse downstream applications. This is an effective, economical, and improved alternative to tissue dissociation machines and harsher trypsin and dispase-based tissue digestion protocols.

酵素消化および勾配分離を使用したマウス皮膚から浸潤白血球の単離

Dissociating murine skin into a single cell suspension is essential for downstream cellular analysis such as the characterization of infiltrating immune ...

Induction of Experimental Autoimmune Encephalomyelitis in Mice and Evaluation of the Disease-dependent Distribution of Immune Cells in Various Tissues

Multiple sclerosis is presumed to be an inflammatory autoimmune disease, which is characterized by lesion formation in the central nervous system (CNS) resulting in cognitive and motor impairment. Experimental autoimmune encephalomyelitis (EAE) is a useful animal model of MS, because it is also characterized by lesion formation in the CNS, motor impairment and is also driven by autoimmune and inflammatory reactions. One of the EAE models is induced with a peptide derived from the myelin oligodendrocyte protein (MOG)35-55 in mice. The EAE mice develop a progressive disease course. This course is divided into three phases: the preclinical phase (day 0 - 9), the disease onset (day 10 - 11) and the acute phase (day 12 - 14). MS and EAE are induced by autoreactive T cells that infiltrate the CNS. These T cells secrete chemokines and cytokines which lead to the recruitment of further immune cells. Therefore, the immune cell distribution in the spinal cord during the three disease phases was investigated. To highlight the time point of the disease at which the activation/proliferation/accumulation of T cells, B cells and monocytes starts, the immune cell distribution in lymph nodes, spleen and blood was also assessed. Furthermore, the levels of several cytokines (IL-1&#946;, IL-6, IL-23, TNF&#945;, IFN&#947;) in the three disease phases were determined, to gain insight into the inflammatory processes of the disease. In conclusion, the data provide an overview of the functional profile of immune cells during EAE pathology.

This manuscript describes the methods for induction and scoring of the experimental autoimmune encephalomyelitis (EAE) model, together with the assessment of immune cell distribution and mRNA cytokine levels in lymph nodes, spleen, blood and spinal cord using flow cytometry and quantitative PCR, respectively, at various disease phases.

マウスおよび種々の組織における免疫細胞の疾患に依存する分布の評価における実験的自己免疫性脳脊髄炎の誘導

Multiple sclerosis is presumed to be an inflammatory autoimmune disease, which is characterized by lesion formation in the central nervous system (CNS) ...

Simple and Efficient Production and Purification of Mouse Myelin Oligodendrocyte Glycoprotein for Experimental Autoimmune Encephalomyelitis Studies

Multiple sclerosis (MS) is a chronic inflammatory disease of the central nervous system (CNS), thought to occur as a result of autoimmune responses targeting myelin. Experimental autoimmune encephalomyelitis (EAE) is the most common animal model of CNS autoimmune disease, and is typically induced via immunization with short peptides representing immunodominant CD4+ T cell epitopes of myelin proteins. However, B cells recognize unprocessed protein directly, and immunization with short peptide does not activate B cells that recognize the native protein. As recent clinical trials of B cell-depleting therapies in MS have suggested a role for B cells in driving disease in humans, there is an urgent need for animal models that incorporate B cell-recognition of autoantigen. To this end, we have generated a new fusion protein containing the extracellular domain of the mouse version of myelin oligodendrocyte glycoprotein (MOG) as well as N-terminal fusions of a His-tag for purification purposes and the thioredoxin protein to improve solubility (MOGtag). A tobacco etch virus (TEV) protease cleavage site was incorporated to allow the removal of all tag sequences, leaving only the pure MOG1-125 extracellular domain. Here, we describe a simple protocol using only standard laboratory equipment to produce large quantities of pure MOGtag or MOG1-125. This protocol consistently generates over 200 mg of MOGtag protein. Immunization with either MOGtag or MOG1-125 generates an autoimmune response that includes pathogenic B cells that recognize the native mouse MOG.

We describe a simple protocol using only basic lab equipment to generate and purify large quantities of a fusion protein that contains mouse Myelin Oligodendrocyte Glycoprotein. This protein can be used to induce experimental autoimmune encephalomyelitis driven by both T and B cells.

実験的自己免疫性脳脊髄炎研究のためのシンプルで効率的な生産とマウスミエリンオリゴデンドロサイト糖タンパク質の精製

Multiple sclerosis (MS) is a chronic inflammatory disease of the central nervous system (CNS), thought to occur as a result of autoimmune responses ...

Induction of Drug-Induced, Autoimmune Hepatitis in BALB/c Mice for the Study of Its Pathogenic Mechanisms

Drug-induced autoimmune hepatitis (DIH) is the most common hepatic drug-induced hypersensitization process observed in approximately 9 to 12% of patients with autoimmune hepatitis. The overwhelming majority of patients with DIH are women. The underlying mechanisms of these sex differences in prevalence are unclear because of the paucity of animal models that mimic human disease. Even so, underlying mechanisms are widely believed to be associated with human leukocyte antigen haplotypes and sex hormones. In contrast, using a DIH mouse model, we have uncovered that IL-4 initiated&#160;CD4+ T cells directed against an epitope of cytochrome P450 2E1 induces influx of neutrophils, macrophages and mast cells into the livers of female BALB/c mice. Using this model, we have also shown that IL-33-induced FoxP3+regulatory T cells confer protection against DIH in female and male mice. This DIH model is induced by immunizing mice with an epitope of CYP2E1 that has been covalently altered with a drug metabolite that has been associated with DIH. This epitope is recognized by patients with DIH. Our method induces robust and reproducible hepatitis and autoantibodies that can be utilized to study the pathogenesis of DIH. While in vivo studies can cause undue pain and distress in mice when done improperly, the advantage of an in vivo model is the ability to evaluate the pathogenesis of disease in a large number of mice. Additionally, biological effects of the altered liver proteins can be studied using invasive procedures. The addition of in vitro studies to the experimental design allows rapid repetition and mechanistic analysis at a cellular level. Thus, we will demonstrate our model protocol and how it can be utilized to study in vivo and in vitro mechanisms of DIH.

We describe an in vivo immunization, translational hepatitis model in BALB/c mice that can be utilized to study the pathogenesis of drug-induced autoimmune hepatitis including sex differences seen in this disease. We will describe how this model demonstrates reproducible analyses using in vivo and in vitro experimental techniques.

BALB/cマウスにおける薬物誘発性自己免疫性肝炎の誘導による発症機序の研究

Drug-induced autoimmune hepatitis (DIH) is the most common hepatic drug-induced hypersensitization process observed in approximately 9 to 12% of patients ...

Visualizing Impairment of the Endothelial and Glial Barriers of the Neurovascular Unit during Experimental Autoimmune Encephalomyelitis In Vivo

The neurovascular unit (NVU) is composed of microvascular endothelial cells forming the blood-brain barrier (BBB), an endothelial basement membrane with embedded pericytes, and the glia limitans composed by the parenchymal basement membrane and astrocytic end-feed embracing the abluminal aspect of central nervous system (CNS) microvessels. In addition to maintaining CNS homeostasis the NVU controls immune cell trafficking into the CNS. During immunosurveillance of the CNS low numbers of activated lymphocytes can cross the endothelial barrier without causing BBB dysfunction or clinical disease. In contrast, during neuroinflammation such as in multiple sclerosis or its animal model experimental autoimmune encephalomyelitis (EAE) a large number of immune cells can cross the BBB and subsequently the glia limitans eventually reaching the CNS parenchyma leading to clinical disease. 
Immune cell migration into the CNS parenchyma is thus a two-step process that involves a sequential migration across the endothelial and glial barrier of the NVU employing distinct molecular mechanisms. If following their passage across the endothelial barrier, T cells encounter their cognate antigen on perivascular antigen-presenting cells their local reactivation will initiate subsequent mechanisms leading to the focal activation of gelatinases, which will enable the T cells to cross the glial barrier and enter the CNS parenchyma. Thus, assessing both, BBB permeability and MMP activity in spatial correlation to immune cell accumulation in the CNS during EAE allows to specify loss of integrity of the endothelial and glial barriers of the NVU. 
We here show how to induce EAE in C57BL/6 mice by active immunization and how to subsequently analyze BBB permeability in vivo using a combination of exogenous fluorescent tracers. We further show, how to visualize and localize gelatinase activity in EAE brains by in situ zymogaphy coupled to immunofluorescent stainings of BBB basement membranes and CD45+ invading immune cells.

Here, we present protocols to investigate impairment of the neurovascular unit during experimental autoimmune encephalomyelitis in vivo. We specifically address how to determine blood-brain barrier permeability and gelatinase activity involved in leukocyte migration across the glia limitans.&#160;

生体内で実験的自己免疫性脳脊髄炎時単位の内皮細胞およびグリアの障壁の障害の可視化

The neurovascular unit (NVU) is composed of microvascular endothelial cells forming the blood-brain barrier (BBB), an endothelial basement membrane with ...

Experimental Autoimmune Uveitis: An Intraocular Inflammatory Mouse Model

Experimental Autoimmune Uveitis (EAU) is driven by immune cells responding to self-antigens. Many features of this non-infectious, intraocular inflammatory disease model recapitulate the clinical phenotype of posterior uveitis affecting humans. EAU has been used reliably to study the efficacy of novel inflammatory therapeutics, their mode of action and to further investigate the mechanisms that underpin disease progression of intraocular disorders. Here, we provide a detailed protocol on EAU induction in the C57BL/6J mouse - the most widely used model organism with susceptibility to this disease. Clinical assessment of disease severity and progression will be demonstrated using fundoscopy, histological examination and fluorescein angiography. The induction procedure involves subcutaneous&#160;injection of an emulsion containing a peptide (IRBP1-20) from the ocular protein interphotoreceptor retinoid binding protein (also known as retinol binding protein 3), Complete Freund&#39;s Adjuvant (CFA) and supplemented with killed Mycobacterium tuberculosis. Injection of this viscous emulsion on the back of the neck is followed by a single intraperitoneal injection of Bordetella pertussis toxin. At the onset of symptoms (day 12-14) and under general anesthesia, fundoscopic images are taken to assess disease progression through clinical examination. These data can be directly compared with those at later timepoints and peak disease (day 20-22) with differences analyzed. At the same time, this protocol allows the investigator to assess potential differences in vessel permeability and damage using fluorescein angiography. EAU can be induced in other mouse strains - both wildtype or genetically modified - and combined with novel therapies offering flexibility for studying drug efficacy and/or disease mechanisms.

In this report we present a protocol that allows the investigator to generate a mouse model of intraocular uveitis. More commonly referred to as experimental autoimmune uveitis (EAU), this established model captures many aspects of human disease. Herein, we will describe how to induce and monitor disease progression using several readouts.

実験的自己免疫性ブドウ膜炎:眼内炎症性マウスモデル

Experimental Autoimmune Uveitis (EAU) is driven by immune cells responding to self-antigens. Many features of this non-infectious, intraocular ...

A Rapid, Simple, and Standardized Homogenization Method to Prepare Antigen/Adjuvant Emulsions for Inducing Experimental Autoimmune Encephalomyelitis

Experimental autoimmune encephalomyelitis (EAE) shares similar immunological and clinical features with multiple sclerosis (MS), and is therefore widely used as a model to identify new drug targets for better patient treatment. MS is characterized by several different disease courses: relapsing-remitting MS (RRMS), primary progressive MS (PPMS), secondary progressive MS (SPMS), and a rare progressive-relapsing form of MS (PRMS). Although animal models do not accurately mimic all of these contrasting human disease phenotypes, there are EAE models that reflect some of the different clinical manifestations of MS. For example, myelin oligodendrocyte glycoprotein (MOG)-induced EAE in C57BL/6J mice mimics human PPMS, while myelin proteolipid protein (PLP)-induced EAE in SJL/J mice resembles RRMS. Other autoantigens, such as myelin basic protein (MBP), and a number of different mouse strains are also used to study EAE. To induce disease in these autoantigen-immunization EAE models, a water-in-oil emulsion is prepared and injected subcutaneously. The majority of EAE models also require an injection of pertussis toxin for the disease to develop. For consistent and reproducible EAE induction, a detailed protocol to prepare the reagents to produce antigen/adjuvant emulsions is necessary. The method described here takes advantage of a standardized method to generate water-in-oil emulsions. It is simple and fast and uses a shaking homogenizer instead of syringes to prepare quality-controlled emulsions.

To induce experimental autoimmune encephalomyelitis, an animal model of multiple sclerosis, mice are immunized with a water-in-oil emulsion containing an autoantigen and complete Freund's adjuvant. While several protocols exist for the preparation of these emulsions, a rapid, simple, and standardized homogenization protocol for emulsion preparation is presented here.

実験的自己免疫性脳脊髄炎を誘発するための抗原/アジュバントエマルジョンを調製するための迅速、簡便、標準化されたホモジナイズ法

Experimental autoimmune encephalomyelitis (EAE) shares similar immunological and clinical features with multiple sclerosis (MS), and is therefore widely ...

Generation of a Mouse Spontaneous Autoimmune Thyroiditis Model

In recent years, Hashimoto's thyroiditis (HT) has become the most common autoimmune thyroid disease. It is characterized by lymphocyte infiltration and the detection of specific serum autoantibodies. Although the potential mechanism is still not clear, the risk of Hashimoto's thyroiditis is related to genetic and environmental factors. At present, there are several types of models of autoimmune thyroiditis, including experimental autoimmune thyroiditis (EAT) and spontaneous autoimmune thyroiditis (SAT).
EAT in mice is a common model for HT, which is immunized with lipopolysaccharide (LPS) combined with thyroglobulin (Tg) or supplemented with complete Freund's adjuvant (CFA). The EAT mouse model is widely established in many types of mice. However, the disease progression is more likely associated with the Tg antibody response, which may vary in different experiments.
SAT is also widely used in the study of HT in the NOD.H-2h4 mouse. The NOD.H2h4 mouse is a new strain obtained from the cross of the nonobese diabetic (NOD) mouse with the B10.A(4R), which is significantly induced for HT with or without feeding iodine. During the induction, the NOD.H-2h4 mouse has a high level of TgAb accompanied by lymphocyte infiltration in the thyroid follicular tissue. However, for this type of mouse model, there are few studies to comprehensively evaluate the pathological process during the induction of iodine.
A SAT mouse model for HT research is established in this study, and the pathologic changing process is evaluated after a long period of iodine induction. Through this model, researchers can better understand the pathological development of HT and screen new treatment methods for HT.

Several types of animal models of Hashimoto's thyroiditis have been established, as has spontaneous autoimmune thyroiditis in the NOD mouse. H-2h4 mice are a simple and reliable model for HT induction. This article describes this approach and evaluates the pathological process for a better understanding of the SAT murine model.

マウス自然発症自己免疫性甲状腺炎モデルの作製

In recent years, Hashimoto's thyroiditis (HT) has become the most common autoimmune thyroid disease. It is characterized by lymphocyte infiltration and ...

自己免疫性脳脊髄炎における マイコバクテリウム・パラ結核 による免疫原性増強

Adjuvant Activity of Mycobacterium paratuberculosis in Enhancing the Immunogenicity of Autoantigens During Experimental Autoimmune Encephalomyelitis

Experimental autoimmune encephalomyelitis (EAE) induced by myelin oligodendrocyte glycoprotein (MOG) requires immunization by a MOG peptide emulsified in complete Freund&#39;s adjuvant (CFA) containing inactivated Mycobacterium tuberculosis. The antigenic components of the mycobacterium activate dendritic cells to stimulate T-cells to produce cytokines that promote the Th1 response via toll-like receptors. Therefore, the amount and species of mycobacteria present during the antigenic challenge are directly related to the development of EAE. This methods paper presents an alternative protocol to induce EAE in C57BL/6 mice using a modified incomplete Freund&#39;s adjuvant containing the heat-killed Mycobacterium avium subspecies paratuberculosis strain K-10.
M. paratuberculosis, a member of the Mycobacterium avium complex, is the causative agent of Johne&#39;s disease in ruminants and has been identified as a risk factor for several human T-cell-mediated disorders, including multiple sclerosis. Overall, mice immunized with Mycobacterium paratuberculosis showed earlier onset and greater disease severity than mice immunized with CFA containing the strain of M. tuberculosis H37Ra at the same doses of 4 mg/mL. The antigenic determinants of Mycobacterium avium subspecies paratuberculosis (MAP)&#160;strain K-10 were able to induce a strong Th1 cellular response during the effector phase, characterized by significantly higher numbers of T-lymphocytes (CD4+ CD27+), dendritic cells (CD11c+ I-A/I-E+), and monocytes (CD11b+ CD115+) in the spleen compared to mice immunized with CFA. Furthermore, the proliferative T-cell response to the MOG peptide appeared to be highest in M. paratuberculosis-immunized mice. The use of an encephalitogen (e.g., MOG35-55) emulsified in an adjuvant containing M. paratuberculosis in the formulation may be an alternative and validated method to activate dendritic cells for priming myelin epitope-specific CD4+ T-cells during the induction phase of EAE.

著者スポットライト:実験的自己免疫性脳脊髄炎における自己抗原の免疫原性増強におけるパラ結核菌のアジュバント活性  

Here, we present an alternative protocol to actively induce experimental autoimmune encephalomyelitis in C57BL/6 mice, using the immunogenic epitope myelin oligodendrocyte glycoprotein (MOG)35-55 suspended in incomplete Freund's adjuvant containing the heat-killed Mycobacterium avium subspecies paratuberculosis.

実験的自己免疫性脳脊髄炎における自己抗原の免疫原性増強における 抗酸菌パラ結核の アジュバント活性

Experimental autoimmune encephalomyelitis (EAE) induced by myelin oligodendrocyte glycoprotein (MOG) requires immunization by a MOG peptide emulsified in ...