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Modulation of IgG1 immunoeffector function by glycoengineering of the GDP‐fucose biosynthesis pathway

机译:GDP - 岩氧生物合成途径的Glycoengering调制IgG1免疫偶联功能

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Abstract <section xml:id="bit26496-sec-0001" numbered="no"> > Cross‐linking of the Fcγ receptors expressed on the surface of hematopoietic cells by IgG immune complexes triggers the activation of key immune effector mechanisms, including antibody‐dependent cell mediated cytotoxicity (ADCC). A conserved N‐glycan positioned at the N‐terminal region of the IgG C <sub>H</sub> 2 domain is critical in maintaining the quaternary structure of the molecule for Fcγ receptor engagement. The removal of a single core fucose residue from the N‐glycan results in a considerable increase in affinity for FcγRIIIa leading to an enhanced receptor‐mediated immunoeffector function. The enhanced potency of the molecule translates into a number of distinct advantages in the development of IgG antibodies for cancer therapy. In an effort to significantly increase the potency of an anti‐CD20, IgG1 molecule, we selectively targeted the de novo GDP‐fucose biosynthesis pathway of the host CHO cell line to generate 80% afucosylated IgG1 resulting in enhanced FcγRIIIa binding (13‐fold) and in vitro ADCC cell‐based activity (11‐fold). In addition, this effective glycoengineering strategy also allowed for the utilization of the alternate GDP‐fucose salvage pathway to provide a fast and efficient mechanism to manipulate the N‐glycan fucosylation level to modulate IgG immune effector function. </section> </abstract> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> <div class="translation abstracttxt"> <span class="zhankaihshouqi fivelineshidden" id="abstract"> <span>机译:</span><Abstract XMLNS =“http://www.wiley.com/namespaces/wiley”type =“main”xml:lang =“en”> <title type =“main”>抽象</ title> <section XML:ID =“bit26496-sec-0001”编号=“否”> >通过IgG免疫复合物在造血细胞表面表达的Fcγ受体的交联触发了关键免疫效应机制的激活,包括依赖依赖性细胞介导的抗体依赖性细胞细胞毒性(ADCC)。定位在IgG C <Sub> H </ sub> 2结构域的N-末端区域的保守的N-聚糖对于维持分子的季结构至关重要,用于FCγ受体接合。从N-聚糖中除去单芯岩藻糖残基导致对FcγRIIIA的亲和力相当大的增加,导致增强的受体介导的免疫切除函数。分子的增强效力转化为癌症治疗IgG抗体的许多不同的优点。努力显着增加抗CD20,IgG1分子的效力,我们选择性地靶向宿主Cho细胞系的De Novo GDP - 岩藻糖生物合成途径,以产生& 80%的抑制剂,导致增强的FcγRIIIa结合(13-折叠)和体外ADCC基于细胞的活性(11倍)。此外,这种有效的甘油化策略还允许利用交替的GDP - 岩藻糖挽救途径,以提供快速有效的机制,以操纵N-聚糖岩藻糖基化水平以调节IgG免疫效应功能。 </ p> </ section> </ abstract> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> </div> <div class="record"> <h2 class="all_title" id="enpatent33" >著录项</h2> <ul> <li> <span class="lefttit">来源</span> <div style="width: 86%;vertical-align: text-top;display: inline-block;"> <a href='/journal-foreign-15017/'>《Biotechnology and Bioengineering》</a> <b style="margin: 0 2px;">|</b><span>2018年第3期</span><b style="margin: 0 2px;">|</b><span>共14页</span> </div> </li> <li> <div class="author"> <span class="lefttit">作者</span> <p id="fAuthorthree" class="threelineshidden zhankaihshouqi"> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Kelly Ronan M.&option=202" target="_blank" rel="nofollow">Kelly Ronan M.;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Kowle Ronald L.&option=202" target="_blank" rel="nofollow">Kowle Ronald L.;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Lian Zhirui&option=202" target="_blank" rel="nofollow">Lian Zhirui;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Strifler Beth A.&option=202" target="_blank" rel="nofollow">Strifler Beth A.;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Witcher Derrick R.&option=202" target="_blank" rel="nofollow">Witcher Derrick R.;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Parekh Bhavin S.&option=202" target="_blank" rel="nofollow">Parekh Bhavin S.;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Wang Tongtong&option=202" target="_blank" rel="nofollow">Wang Tongtong;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Frye Christopher C.&option=202" target="_blank" rel="nofollow">Frye Christopher C.;</a> </p> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zkzz" style="display: none;">展开▼</span> </div> </li> <li> <div style="display: flex;"> <span class="lefttit">作者单位</span> <div style="position: relative;margin-left: 3px;max-width: 639px;"> <div class="threelineshidden zhankaihshouqi" id="fOrgthree"> <p>Bioprocess Research and DevelopmentEli Lilly and CompanyIndianapolis Indiana;</p> <p>Bioprocess Research and DevelopmentEli Lilly and CompanyIndianapolis Indiana;</p> <p>Bioprocess Research and DevelopmentEli Lilly and CompanyIndianapolis Indiana;</p> <p>Biotechnology Discovery Research Lilly Research Laboratories Eli Lilly and CompanyLilly Corporate CenterIndianapolis Indiana;</p> <p>Biotechnology Discovery Research Lilly Research Laboratories Eli Lilly and CompanyLilly Corporate CenterIndianapolis Indiana;</p> <p>Bioprocess Research and DevelopmentEli Lilly and CompanyIndianapolis Indiana;</p> <p>Bioprocess Research and DevelopmentEli Lilly and CompanyIndianapolis Indiana;</p> <p>Bioprocess Research and DevelopmentEli Lilly and CompanyIndianapolis Indiana;</p> </div> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zhdw" style="display: none;">展开▼</span> </div> </div> </li> <li > <span class="lefttit">收录信息</span> <span style="width: 86%;vertical-align: text-top;display: inline-block;"></span> </li> <li> <span class="lefttit">原文格式</span> <span>PDF</span> </li> <li> <span class="lefttit">正文语种</span> <span>eng</span> </li> <li> <span class="lefttit">中图分类</span> <span><a href="https://www.zhangqiaokeyan.com/clc/180.html" title="生物工程学(生物技术)">生物工程学(生物技术);</a></span> </li> <li class="antistop"> <span class="lefttit">关键词</span> <p style="width: 86%;vertical-align: text-top;"> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=ADCC&option=203" rel="nofollow">ADCC;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=afucosylation&option=203" rel="nofollow">afucosylation;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=FcγRIIIa&option=203" rel="nofollow">FcγRIIIa;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=glycoengineering&option=203" rel="nofollow">glycoengineering;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=mAb&option=203" rel="nofollow">mAb;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=N‐glycan&option=203" rel="nofollow">N‐glycan;</a> </p> <div class="translation"> 机译:ADCC;afucosylation;fcγRIIIA;Glycoengineering;mab;n-甘草; </div> </li> </ul> </div> </div> <div class="literature cardcommon"> <div class="similarity "> <h3 class="all_title" id="enpatent66">相似文献</h3> <div class="similaritytab clearfix"> <ul> <li class="active" >外文文献</li> <li >中文文献</li> <li >专利</li> </ul> </div> <div class="similarity_details"> <ul > <li> <div> <b>1. </b><a class="enjiyixqcontent" href="/journal-foreign-detail/0704021882015.html">Modulation of IgG1 immunoeffector function by glycoengineering of the 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