Name: in vitro methods for comparing target binding and cdc induction between therapeutic antibodies: applications in biosimilarity analysis
Uploaded: 2017-05-04T13:00:00
Description: Watch this Scientific Journal Video about In Vitro Methods for Comparing Target Binding and CDC Induction Between Therapeutic Antibodies: Applications in Biosimilarity Analysis at JoVE.com

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1. Hedef Bağlamanın Akış Sitometresi ile Değerlendirilmesi <ol><li> Biyolojik materyal ve reaktiflerin hazırlanması <ol><li> % 10 ısı ile inaktive edilmiş fetal sığır serumu (H-IFBS) ile takviye edilmiş 500 mL RPMI kültür ortamı yapın. </li><li> Kültür Daudi Burkitt&#39;in Lenfoma (Daudi) hücreleri ve Daudi GFP + hücreleri RPMI ve 75 cm2 kültür şişeleri kullanıyor. Kültürleri 37 ° C&#39;de% 5 CO 2 nemlendirilmiş atmosferde 6 - 9 x 10 5 h?...

<ol>
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A., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Engineered+antibody+Fc+variants+with+enhanced+effector+function.">Engineered antibody Fc variants with enhanced effector function.</a> Proc Natl Acad Sci U S A. 103 (11), 4005-4010 (2006).</li><li>Winiarska, M., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Statins+impair+antitumor+effects+of+rituximab+by+inducing+conformational+changes+of+CD20.">Statins impair antitumor effects of rituximab by inducing conformational changes of CD20.</a> PLoS medicine. 5 (3), e64 (2008).</li><li>Zhou, X., Hu, W., Qin, X. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+role+of+complement+in+the+mechanism+of+action+of+rituximab+for+B-cell+lymphoma:+implications+for+therapy.">The role of complement in the mechanism of action of rituximab for B-cell lymphoma: implications for therapy.</a> Oncologist. 13 (9), 954-966 (2008).</li><li>Hayashi, K., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Gemcitabine+enhances+rituximab-mediated+complement-dependent+cytotoxicity+to+B+cell+lymphoma+by+CD20+upregulation.">Gemcitabine enhances rituximab-mediated complement-dependent cytotoxicity to B cell lymphoma by CD20 upregulation.</a> Cancer Sci. 107 (5), 682-689 (2016).</li><li>Mossner, E., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Increasing+the+efficacy+of+CD20+antibody+therapy+through+the+engineering+of+a+new+type+II+anti-CD20+antibody+with+enhanced+direct+and+immune+effector+cell-mediated+B-cell+cytotoxicity.">Increasing the efficacy of CD20 antibody therapy through the engineering of a new type II anti-CD20 antibody with enhanced direct and immune effector cell-mediated B-cell cytotoxicity.</a> Blood. 115 (22), 4393-4402 (2010).</li><li>Lapalombella, R., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=A+novel+Raji-Burkitt's+lymphoma+model+for+preclinical+and+mechanistic+evaluation+of+CD52-targeted+immunotherapeutic+agents.">A novel Raji-Burkitt's lymphoma model for preclinical and mechanistic evaluation of CD52-targeted immunotherapeutic agents.</a> Clin Cancer Res. 14 (2), 569-578 (2008).</li><li>Mitoma, H., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Mechanisms+for+cytotoxic+effects+of+anti-tumor+necrosis+factor+agents+on+transmembrane+tumor+necrosis+factor+alpha-expressing+cells:+comparison+among+infliximab,+etanercept,+and+adalimumab.">Mechanisms for cytotoxic effects of anti-tumor necrosis factor agents on transmembrane tumor necrosis factor alpha-expressing cells: comparison among infliximab, etanercept, and adalimumab.</a> Arthritis Rheum. 58 (5), 1248-1257 (2008).</li><li>Kaymakcalan, Z., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Comparisons+of+affinities,+avidities,+and+complement+activation+of+adalimumab,+infliximab,+and+etanercept+in+binding+to+soluble+and+membrane+tumor+necrosis+factor.">Comparisons of affinities, avidities, and complement activation of adalimumab, infliximab, and etanercept in binding to soluble and membrane tumor necrosis factor.</a> Clin Immunol. 131 (2), 308-316 (2009).</li><li>Zent, C. S., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Direct+and+complement+dependent+cytotoxicity+in+CLL+cells+from+patients+with+high-risk+early-intermediate+stage+chronic+lymphocytic+leukemia+(CLL)+treated+with+alemtuzumab+and+rituximab.">Direct and complement dependent cytotoxicity in CLL cells from patients with high-risk early-intermediate stage chronic lymphocytic leukemia (CLL) treated with alemtuzumab and rituximab.</a> Leuk Res. 32 (12), 1849-1856 (2008).</li><li>Goswami, M. T., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Regulation+of+complement-dependent+cytotoxicity+by+TGF-beta-induced+epithelial-mesenchymal+transition.">Regulation of complement-dependent cytotoxicity by TGF-beta-induced epithelial-mesenchymal transition.</a> Oncogene. 35 (15), 1888-1898 (2016).</li><li>Wang, A., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Induction+of+anti-EGFR+immune+response+with+mimotopes+identified+from+a+phage+display+peptide+library+by+panitumumab.">Induction of anti-EGFR immune response with mimotopes identified from a phage display peptide library by panitumumab.</a> Oncotarget. , (2016).</li><li>Ueda, N., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+cytotoxic+effects+of+certolizumab+pegol+and+golimumab+mediated+by+transmembrane+tumor+necrosis+factor+alpha.">The cytotoxic effects of certolizumab pegol and golimumab mediated by transmembrane tumor necrosis factor alpha.</a> Inflamm Bowel Dis. 19 (6), 1224-1231 (2013).</li><li>Nesbitt, A., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Mechanism+of+action+of+certolizumab+pegol+(CDP870):+in+vitro+comparison+with+other+anti-tumor+necrosis+factor+alpha+agents.">Mechanism of action of certolizumab pegol (CDP870): in vitro comparison with other anti-tumor necrosis factor alpha agents.</a> Inflamm Bowel Dis. 13 (11), 1323-1332 (2007).</li><li>Teeling, J. 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Terapötik mAb&#39;nin patent sona ermesi, biyosimilarların gelişimini desteklemektedir. Dolayısıyla, bu ürünlerin klinik olarak ilgili faaliyetlerindeki farklılıkları belirleyebilen basit yöntemlere ihtiyaç vardır. CD20 + kültürlü hücreler rituximabın iki önemli fonksiyonel özelliğinin değerlendirilmesi için kullanılmıştır: hedef bağlama ve CDC indüksiyonu. Önceki aktivite, CD20&#39;nin mAb&#39;nin Fab bölgesi tarafından tanınmasını gerektirirken, sonuncusu esasen Fc bölges...

Terapötik antikorlar kanser, oto bağışıklık ve kronik hastalıklar, nörolojik hastalıklar ve diğerleri 1 de dahil olmak üzere, farklı patolojilerin tedavisi için geliştirilmiş rekombinant monoklonal antikorlar (mAb&#39;ler) bulunmaktadır. Şu anda FDA 40&#39;dan fazla terapötik mAb&#39;lere onayını veren ve daha sonraki yıllarda pazara ulaşması bekleniyor. Rituksimab CD20 + B hücreli non-Hodgkin lenfoma (NHL), CD20 + foliküler NHL, kronik lenfositik lösemi, ve romatoid artrit, 2, 3 tedavisi için onaylanmıştır yüksek afiniteli bir kimerik monoklonal IgG1 antikoru. rituksimab tarafından B hücrelerinde aşırı eksprese olan CD20 tanınması, apoptozu indükler; kompleman aktivasyonu; ve antikora bağlı hücre aracılı sitotoksisite (ADCC) 3. Bu ilacın patent 2013 ve 2016 yılında ABD&#39;de, Avrupa&#39;da ve süresi dolmuş, sırasıyla. Böylece, dünya çapındaki ilaç firmaları rituximab biyosimilar geliştiriyor. İnsan tüketimi için diğer herhangi bir ilacın olduğu gibi, biyosimilarlar da düzenleyici kurumların onayını gerektirir. Uluslararası yönergeler, mAb&#39;ler için yeni ve referans ürünlerin fiziko kimyasal özellikleri, farmakokinetiği, etkililiği ve emniyetini karşılaştırarak biyolojik benzerliğin gösterilmesi gerektiğini göstermektedir. Buna göre, bu karşılaştırmalarda kullanılan metodolojiler mAb&#39;lerin yapısal ve işlevsel özelliklerini, özellikle de klinik önemi olanları değerlendirmelidir. Bu amaçla, in vitro deneyler in vivo deneylere kıyasla birçok avantaj sağlar (Chapman ve ark. Gözden geçirilir) 5 : i) in vitro çalışmalar önerilen biyobenzer ile referans ürün arasındaki farklara daha duyarlıdır; Ii) in vivo çalışmalar ilgili türlerde yapılmalıdır, ki bu birçok mAb içininsan olmayan primatlar; ve iii) hareket mekanizması, klinik öncesi toksikoloji ve referans ürün ile ilgili klinik etkileri itibaren de ek yararlı bilgiler sağlamayabilir biyobenzerlerin ile in vivo çalışmalar, bilinmektedir. Buna göre, biyobenzerleri için Avrupa Birliği&#39;nin Rehberlik adayları vitro verilere yalnız 6&#39;da sağlam dayalı klinik deneylere girmek için izin verir. Burada, CD20 + kültürlü hücreleri kullanılarak rituksimab biyolojik aktivitesini değerlendirmek iki hızlı, ekonomik ve basit deneyleri sunuyoruz. Bu tahliller, rituksimab Biyobenzer adaylar için karşılaştırılabilirlik çalışmasının bir parçası olarak dahil edilebilir.

<table border="1" fo:keep-together.within-page="1" fo:keep-with-next.within-page="always">
	<tbody>
		<tr>
			<td>RPMI-1640 medium</td>
			<td>ATCC</td>
			<td>30-2001</td>
			<td>Modify the culture depending on the cell line</td>
		</tr>
		<tr>
			<td>Trypan Blue solution</td>
			<td>Sigma</td>
			<td>T8154</td>
			<td>0.4%, liquid, sterile-filtered, suitable for cell culture</td>
		</tr>
		<tr>
			<td>Daudi Burkitt&#39;s Lymphoma Cells</td>
			<td>ATCC</td>
			<td>CCL-213</td>
			<td>You can modify the cell line depending on the antibody of interest</td>
		</tr>
		<tr>
			<td>Fetal bovine serum(FBS)</td>
			<td>GIBCO</td>
			<td>16000-044</td>
			<td>You can modify the source of serum depending of requirements of the cell line</td>
		</tr>
		<tr>
			<td>Normal Human Serum Complement</td>
			<td>Quidel</td>
			<td>A113</td>
			<td>It is therefore appropriate for use in biocompatibility experiments including drug development, biomaterials testing and other applications</td>
		</tr>
		<tr>
			<td>7AA-D</td>
			<td>BDPharmigen</td>
			<td>559925</td>
			<td>You can use broad range of color options, compatible with most instrument configurations for to analyze viability.</td>
		</tr>
		<tr>
			<td>PECy5 Mouse Anti-human IgG</td>
			<td>BDPharmigen</td>
			<td>551497</td>
			<td>Change fluorochrome depending on the filter and laser of your flow cytometer.</td>
		</tr>
		<tr>
			<td>Human IgG Isotype Control</td>
			<td>ThermoFisher Scientific</td>
			<td>07-7102</td>
			<td>Change depending to mAb</td>
		</tr>
		<tr>
			<td>BDCytofix</td>
			<td>BDPharmigen</td>
			<td>554655</td>
			<td>Flow Cytometry Fixation Buffer (1-4% formaldehyde or paraformaldehyde )</td>
		</tr>
		<tr>
			<td>PBS pH 7.4 10X (Phosphate buffer saline)</td>
			<td>GIBCO</td>
			<td>70011-044</td>
			<td>Phosphatebuffer without Ca2+/Mg2+ [137 mM NaCl, 2.7 mM KCl, 8 mM Na2HPO4, 1.46 mM KH2PO4] and endotoxin free.</td>
		</tr>
		<tr>
			<td>Cell culture plates 96 well, V-bottom</td>
			<td>Corning</td>
			<td>29442-068</td>
			<td>12 x 75 mm round bottom test tubes or 96-well V- or U- bottom microtiter plates</td>
		</tr>
		<tr>
			<td>MabThera (Rituximab)</td>
			<td>Roche</td>
			<td>&#8212;</td>
			<td>Reference product</td>
		</tr>
		<tr>
			<td>Rituximab</td>
			<td>Indian</td>
			<td>&#8212;</td>
			<td>Biosimilar product</td>
		</tr>
		<tr>
			<td>15- or 50-mL conical centrifuge tubes</td>
			<td>Corning</td>
			<td>430290 or 430052</td>
			<td>&#8212;</td>
		</tr>
		<tr>
			<td>Pipette Tips</td>
			<td>Eppendorf</td>
			<td>&#8212;</td>
			<td>Multiple volume configurations are necessary</td>
		</tr>
		<tr>
			<td>Pipettes</td>
			<td>Eppendorf</td>
			<td>&#8212;</td>
			<td>Adjustable-volume pipettes are necessary</td>
		</tr>
		<tr>
			<td>Centrifuge 5430/ 5430R model</td>
			<td>Eppendorf</td>
			<td>&#8212;</td>
			<td>Refrigerated variable-speed centrifuge (4 to 25 &#176; C) with speeds ranging from 10 to 30,130 &#215; g</td>
		</tr>
		<tr>
			<td>Flow cytometer</td>
			<td>BD Dickinson</td>
			<td>&#8212;</td>
			<td>BD FACSAria III or other flow cytometer</td>
		</tr>
		<tr>
			<td>Olympus optical and light microscope</td>
			<td>Olympus</td>
			<td>&#8212;</td>
			<td>To quantify and evaluate cell growth</td>
		</tr>
		<tr>
			<td>Incubator</td>
			<td>SANYO</td>
			<td>&#8212;</td>
			<td>Incubatorfor temperature andCO2 control to culture cells</td>
		</tr>
		<tr>
			<td>Biological Safety Cabinet</td>
			<td>CHC BIOLUS</td>
			<td>&#8212;</td>
			<td>Biological safety cabinet that is used to protect the researcher, product and environment.</td>
		</tr>
	</tbody>
</table>

in vitro methods for comparing target binding and cdc induction between therapeutic antibodies: applications in biosimilarity analysis

Terapötik monoklonal antikorlar (mAb), kanserler de dahil olmak üzere farklı patolojilerin tedavisi için önemlidir. İlaç şirketleri tarafından biyobenzer mAb&#39;lerin gelişimi bir pazar fırsatıdır, ancak aynı zamanda uyuşturucunun erişilebilirliğini artırmak ve terapi ile ilişkili maliyetleri azaltmak için bir stratejidir. Burada detaylandırılan protokoller, Daudi hücrelerinde rituksimab ile hedef bağlanma ve CDC indüksiyonunun değerlendirilmesini tanımlamaktadır. Bu iki işlev antikorun farklı yapısal bölgelerini gerektirir ve rituximab&#39;ın indüklediği klinik etkiyle ilişkilidir. Protokoller, bir referans rituksimabın ve piyasaya sürülen rituksimab biyosimerlerinin yan yana karşılaştırılmasını sağlar. Değerlendirilen ürünler hem hedef bağlama hem de CDC indüksiyonunda farklılıklar gösterdi; bu, alttaki fizikokimyasal farklılıkların bulunduğunu ve klinik ortamdaki bu farklılıkların etkisini analiz etme ihtiyacının altını çizdi. Burada bildirilen yöntemler basit ve ucuz in vitro &lt;/ Em&gt; rituximab biyosimilar aktivitesinin değerlendirilmesi için modeller. Bu nedenle, biyo-benzeri gelişim sırasında biyoeşdeğer üretimin kalite kontrolünde yararlı olabilirler. Dahası, sunulan yöntemler diğer terapötik mAb&#39;lara ekstrapole edilebilir.

Yukarıda tarif edilen protokol kullanılarak, bağlanma hedef ve referans rituksimab CDC indüksiyon Asya&#39;da üretilen biyobenzer rituksimab o ve ticari olarak temin edilebilen paralel olarak karşılaştırıldı. Daudi hücreleri, her iki mAb de, konsantrasyona bağlı bir şekilde (Şekil 1D) CD20 bağlandı. Bağlanma verilerinin doğrusal olmayan regresyon referans ve biyobenzer rituksimab, sırasıy...

Watch this Scientific Journal Video about In Vitro Methods for Comparing Target Binding and CDC Induction Between Therapeutic Antibodies: Applications in Biosimilarity Analysis at JoVE.com

In Vitro Methods for Comparing Target Binding and CDC Induction Between Therapeutic Antibodies: Applications in Biosimilarity Analysis

Bu protokol, rituksimab iki önemli fonksiyonel özellikleri in vitro karşılaştırmasını tarif: hedef bağlanma ve tamamlayıcıya bağlı sitotoksisite (CDC) indüksiyonu. yöntem, referans rituksimab ve rituksimab biyobenzerin arasında bir yan-yana karşılaştırma için kullanılmıştır. Bu tahliller, biyobenzer geliştirme sırasında veya üretimlerinde bir kalite kontrol olarak kullanılabilir.

Terapötik Antikorlar Arasındaki Hedef Bağlanma ve CDC İndüksiyonunu Karşılaştırmak İçin İn Vitro Yöntemler: Biyoeşdeğerlik Analizindeki Uygulamalar

Therapeutic monoclonal antibodies (mAbs) are relevant to the treatment of different pathologies, including cancers. The development of biosimilar mAbs by ...

Research

JoVE Journal

Immunology and Infection

In Vitro Methods for Comparing Target Binding and CDC Induction Between Therapeutic Antibodies: Applications in Biosimilarity Analysis

Human T Lymphocyte Isolation, Culture and Analysis of Migration In Vitro

Human T Lymphocyte Isolation, Culture and Analysis of Migration In Vitro

Göç İnsan T Lenfosit İzolasyon, Kültür ve Analiz In Vitro</em

The migration of T lymphocytes involves the adhesive interaction of cell surface integrins with ligands expressed on other cells or with extracellular ...

Introducing Shear Stress in the Study of Bacterial Adhesion

Bakteriyel Yapışma Çalışma Kesme Stres Tanıtımı

During bacterial infections a sequence of interactions occur between the pathogen and its host. Bacterial adhesion to the host cell surface is often the ...

Establishing a Liquid-covered Culture of Polarized Human Airway Epithelial Calu-3 Cells to Study Host Cell Response to Respiratory Pathogens In vitro

Establishing a Liquid-covered Culture of Polarized Human Airway Epithelial Calu-3 Cells to Study Host Cell Response to Respiratory Pathogens In vitro

Polarize İnsan Havayolu bir sıvı kaplı Kültürünün Oluşturulması Solunum Patojenler için Host Hücre Yanıtı Okumak Epitel Calu-3 Hücreler<em&gt; In vitro</em

The  apical and basolateral surfaces of airway epithelial cells demonstrate  directional responses to pathogen exposure in  vivo. Thus, ideal in vitro ...

Total Protein Extraction and 2-D Gel Electrophoresis Methods for Burkholderia Species

Total Protein Extraction and 2-D Gel Electrophoresis Methods for Burkholderia Species

Toplam Protein Ekstraksiyon ve 2-D Jel Elektroforez Yöntemleri<em&gt; Burkholderia</em&gt; Türler

The investigation of  the intracellular protein levels of bacterial species is of importance to  understanding the pathogenic mechanisms of diseases ...

A Novel In vitro Model for Studying the Interactions Between Human Whole Blood and Endothelium

A Novel In vitro Model for Studying the Interactions Between Human Whole Blood and Endothelium

A Novel<em&gt; In vitro</em&gt; İnsan Tüm Kan ve Endotelyumunun Arasındaki Etkileşimler incelenmesi için Model

The majority of all known diseases are accompanied by disorders of the cardiovascular system. Studies into the complexity of the interacting pathways ...

Neutrophil Isolation and Analysis to Determine their Role in Lymphoma Cell Sensitivity to Therapeutic Agents

Nötrofil İzolasyon ve Analiz Terapötik Ajanların için Lenfoma Hücre Duyarlılık kendi Rolü belirleme

Neutrophils are the most abundant (40% to 75%) type of white blood cells and among the first inflammatory cells to migrate towards the site of ...

An In Vitro Caseum Binding Assay that Predicts Drug Penetration in Tuberculosis Lesions

An In Vitro Caseum Binding Assay that Predicts Drug Penetration in Tuberculosis Lesions

bir<em&gt; In vitro</emTüberküloz Lezyonlarında İlaç Penetrasyonunu Öngören Caseum Bağlanma Testi

The eradication of tuberculosis disease requires drug regimens that can penetrate the multiple layers of complex pulmonary lesions. Drug distribution in ...

Induction of Paralysis and Visual System Injury in Mice by T Cells Specific for Neuromyelitis Optica Autoantigen Aquaporin-4

Felç ve görsel sistem yaralanma tarafından Nöromyelitis Optica Autoantigen Aquaporin-4 T hücreleri belirli farelerde indüksiyon

While it is recognized that aquaporin-4 (AQP4)-specific T cells and antibodies participate in the pathogenesis of neuromyelitis optica (NMO), a human ...

Alternative In Vitro Methods for the Determination of Viral Capsid Structural Integrity

Alternative In Vitro Methods for the Determination of Viral Capsid Structural Integrity

Viral kapsid yapısal bütünlük belirlenmesi için alternatif Vitro yöntemleri

Human norovirus exacts considerable public health and economic losses worldwide. Emerging in vitro cultivation advances are not yet applicable for routine ...

Human Colonoid Monolayers to Study Interactions Between Pathogens, Commensals, and Host Intestinal Epithelium

Patojenler, Commensals ve ana bilgisayar bağırsak epitel arasındaki etkileşimler çalışmaya insan Colonoid Monolayers

Human 3-dimensional (3D) enteroid or colonoid cultures derived from crypt base stem cells are currently the most advanced ex vivo model of the intestinal ...