Exosome是由多种活细胞分泌的50-100nm的膜性小囊泡,来源于晚期核内体(也称为多囊泡体)的囊泡,是由细胞内多泡体(MVBs)出芽形成,再与细胞膜融合后释放到细胞外基质中。几乎所有类型的细胞都能分泌,广泛存在于各种体液中。不同细胞来源的Exosome所含有的具体成分不尽相同,根据分泌的细胞类型不同,在血液、尿液、羊水、恶性肿瘤、腹水等动物体液中的Exosome通常含有特定的miRNA和蛋白质。因此,Exosome为研究潜在的各种biomarker提供了很好的生物学材料。Exosome参与调控重要的细胞生理活动,在免疫应答、凋亡、血管生成、炎症反应、凝结过程中的作用均有报道,可以成为多种疾病的早期诊断标记物,也能作为靶向药物的载体进行疾病治疗。作为囊泡的一种,Exosome受到越来越多的关注。其分泌过程如图[1]:
SBI公司是一家提供外泌体研究所需产品和试剂盒,包括分离,检测和定量试剂盒,探测(表征和分析试剂盒),为广大研究者提供了新的研究手段。2009年,SBI公司的研究团队们发现了Exosome的巨大研究价值后开发了一款商业化的外泌体分离试剂盒,期间也一直在壮大Exosome研究团队,提升产品质量丰富产品种类成为Exosome研究供应商。SBI将会把新的技术和方法转化成加快您外泌体研究进程的最有力的工具。
外泌体的提取
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分离完整的Exosome
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FACS磁珠分选
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IP高通量免疫沉淀Exosome
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不含Exosome的培养基
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Exosome的验证分析
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抗体
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Elisa定量分析
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CETP活性定量分析
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Exosome RNA的研究
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RNA的提取
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RNA二代测序建库试剂盒
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Exosome功能研究
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荧光标记
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转染试剂
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Ev-Entry system
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X PACK 技术
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XMIR miRNA packing system
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XStamp Exosome Targeting Technology
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一外泌体的分离
SBI公司研究和开发了一款基于多聚体形式的Exosome提取试剂,能够快速有效地提取及分离血清和肿瘤组织样本中的Exosome囊泡。这些多聚体能够形成类似于网状结构,从而将60-180nm直径的微泡分离出来。其纯度和产量皆优于传统方法。
(一)外泌体分离纯化产品选择
分离完整Exosome
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ExoQuick:
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适合从富含Exosome样本中提取exosome如:血清、腹水
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ExoQuick-TC:
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适合从含量较少的样本中提取exosome如:细胞培养上清、尿液、脑脊液
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ExoQuick Plasma Kit:
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从血浆中提取exosome(试剂盒中含Thrombin及ExoQuick试剂)
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ExoQuick-CG:
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药品生产管理规范标准级别的用于临床前的应用研究(适用于各种培养液、体液如尿液、唾液、脑脊液等等样本的Exosome提取)
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ExoQuick-LP
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预处理血清或血浆样本,以出去脂蛋白
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产品信息
货号
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产品
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规格
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价格(元)
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EXOQ5A-1
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ExoQuickExosome precipitation solution
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5ml(75T)
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4546.00
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EXOQ20A-1
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ExoQuickExosome precipitation solution
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20ml(300T)
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14662.00
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EXOTC10A-1
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ExoQuick TC Exosome precipitation solution
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10ml
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4529.00
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EXOTC50A-1
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ExoQuick TC Exosome precipitation solution
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50ml
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15214.00
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EXOCG50A-1
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ExoQuick-CG™ Exosome Precipitation Solution
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50ml(30R)
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EXOQ5TM-1
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ExoQuick Plasma prep and Exosome Precipitation Kit
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75T
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10341.00
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关联产品
货号
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产品
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规格
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价格(元)
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TMEXO-1
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Thrombin Plasma prep for Exosome Precipitation
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100T
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6930.00
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EXOLP5A-1
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ExoQuick-LP Lipoprotein PreClear&Exosome Precipitation Kit
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10T
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6279.00
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EXO-FBS-50A-1
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Exosome-depleted FBS Media Supplement(无外泌体血清)
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50ml
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2546.00
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EXO-FBS-250A-1
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Exosome-depleted FBS Media Supplement(无外泌体血清)
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250ml
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11000.00
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(二)FACS磁珠分选Exosomes
SBI为您推荐Exo-Flow抗体磁珠试剂盒,该试剂盒能够捕获Exosome特定的表面标记蛋白,利用流式分选技术,从而分离出不同亚型的Exosome。试剂盒中提供的9.1μM直径的Exo-Flow磁珠与传统的4μM Dynabeads磁珠相比,能够更好地捕获Exosome,特别适用于数量较少的Exosome样本,并且有多种标记抗体供选择。
产品信息
货号
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产品
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规格
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价格(元)
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EXOFLOW100A-1
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CD9 Exo-Flow capture kit (Magnetic streptavidin beads, CD9-biotin capture antibody, Wash and Elution Buffers, Exo-FITC stain)
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10 reactions
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6576.00
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EXOFLOW150A-1
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TetraspaninExo-Flow combo capture kit (Magnetic streptavidin beads, CD9, CD63, and CD81-biotin capture antibodies, Wash and Elution Buffers, Exo-FITC stain)
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10 reactions
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9995.00
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EXOFLOW200A-1
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CD31 Exo-Flow capture kit (Magnetic streptavidin beads, CD31-biotin capture antibody, Wash and Elution Buffers, Exo-FITC stain)
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10 reactions
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6576.00
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EXOFLOW210A-1
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CD44 Exo-Flow capture kit (Magnetic streptavidin beads, CD44-biotin capture antibody, Wash and Elution Buffers, Exo-FITC stain)
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10 reactions
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6576.00
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XOFLOW300A-1
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CD63 Exo-Flow capture kit (Magnetic streptavidin beads, CD63-biotin capture antibody, Wash and Elution Buffers, Exo-FITC stain)
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10 reactions
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6576.00
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EXOFLOW400A-1
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CD81 Exo-Flow capture kit (Magnetic streptavidin beads, CD81-biotin capture antibody, Wash and Elution Buffers, Exo-FITC stain)
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10 reactions
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6576.00
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EXOFLOW500A-1
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Rab5b Exo-Flow capture kit (Magnetic streptavidin beads, Rab5b-biotin capture antibody, Wash and Elution Buffers, Exo-FITC stain)
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10 reactions
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6576.00
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EXOFLOW600A-1
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HLA-G Exo-Flow capture kit (Magnetic streptavidin beads, HLA-G-biotin capture antibody, Wash and Elution Buffers, Exo-FITC stain)
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10 reactions
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6576.00
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EXOFLOW610A-1
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CD14 Exo-Flow capture kit (Magnetic streptavidin beads, CD14-biotin capture antibody, Wash and Elution Buffers, Exo-FITC stain)
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10 reactions
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6576.00
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EXOFLOW620A-1
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CD68 Exo-Flow capture kit (Magnetic streptavidin beads, CD68-biotin capture antibody, Wash and Elution Buffers, Exo-FITC stain)
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10 reactions
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6576.00
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EXOFLOW630A-1
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EpCAMExo-Flow capture kit (Magnetic streptavidin beads, EpCAM-biotin capture antibody, Wash and Elution Buffers, Exo-FITC stain)
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10 reactions
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6576.00
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EXOFLOW650A-1
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Alpha-2-Macroglobulin (A2M) Exo-Flow capture kit (Magnetic streptavidin beads, A2M-biotin capture antibody, Wash an Elution Buffers, Exo-FITC stain)
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10 reactions
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6576.00
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CSFLOWBASICA-1
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Basic Exo-Flow kit without any coupled antibodies (Uncoupled magnetic streptavidin beads, Wash and Elution Buffers, Exo-FITC stain)
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100 reactions
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11313.00
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关联产品
货号
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名称
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规格
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价格
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EXOFLOW700A-1
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Exo-Flow Multifunctional Magnetic Stand
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1 Kit
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4525.00
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EXOFLOW800A-1
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Exo-FITC Exosome FACS stain
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20 reactions
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2474.00
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EXOFLOW810A-1
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Exo-APC Exosome FACS stain
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20 reactions
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2474.00
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(三)IP高通量免疫沉淀Exosomes
Exo-Flow 96/32 IP试剂盒可从血浆样本、使用ExoQuick-TC或超速离心富集的细胞培养上清(尿液、脑脊髓液等)Exosomes产物样本中高通量、直接免疫沉淀Exosomes。试剂盒中的磁珠已经预结合了CD9、CD63或者CD81用于选择性捕获特定的Exosomes亚型,直接将上述样本添加入磁珠中即可免疫沉淀Exosomes。96孔板或32孔板形式产品可用于同时处理多个样本。得到Exosomes具有完整形态,可用于下游Exosomes RNA和蛋白分析。
产品信息
货号
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名称
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规格
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价格
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EXOFLOW32A-CD9
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Exo-Flow 32 CD9 IP kit
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32 rxns
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7699.00
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EXOFLOW32A-CD63
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Exo-Flow 32 CD63 IP kit
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32 rxns
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7699.00
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EXOFLOW32A-CD81
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Exo-Flow 32 CD81 IP kit
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32 rxns
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7699.00
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EXOFLOW96A-CD9
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Exo-Flow 96 CD9 IP kit
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96 rxns
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20429.00
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EXOFLOW96A-CD63
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Exo-Flow 96 CD63 IP kit
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96 rxns
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20429.00
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EXOFLOW96A-CD81
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Exo-Flow 96 CD81 IP kit
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96 rxns
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20429.00
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关联产品
货号
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名称
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规格
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价格
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EXOFLOWMAG-1
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ExoFlowMag96 96-well plate magnet
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1 Kit
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8350.00
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