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Dendritics公司主要关注人类树突状细胞,希望找到能够促使CD34+造血前体细胞转化为树突状细胞(在GM-CSF和TNF-alpha存在的情况下)的细胞因子。在1992-2005年间,大量的研究使得研究者对人类树突状细胞的产生、细胞通路、C-type凝集素受体的功能及Toll-like受体的活性有了更深的理解。

 

DENDRITICS was started in 2005 by former members of SCHERING PLOUGH Laboratory for Immunological Research (LIR) in Dardilly, France. From their long experience at LIR, the team members of DENDRITICS have gathered complementary scientific and technological knowledge in different areas of immunology. The initial focus of LIR was in the biology of B lymphocytes, elaboration of human monoclonal antibodies, and in cytokine discovery (IL-3, IL-4, IL-7, IL-10, IL-17, GM-CSF) together with our colleagues of DNAX Research Institute in Palo Alto, California.

 

Our interest in cytokines led to the finding that human dendritic cells (DCs) could be generated in vitro from CD34+ hematopoietic progenitors cultured in the presence of GM-CSF and TNF-alpha.

 

The period from 1992 to 2005 saw the specialization of LIR in DC biology and was fuelled by a large-scale effort to discover and study the function of genes specifically expressed by these cells. This program led to a number of findings that contributed in particular to understanding the heterogeneity of DCs, the pathways regulating DC migration, the function of C-type lectin receptors in DCs and the activity of Toll-like receptors in DCs. Many novel genes were discovered through screening of cDNA libraries or through monoclonal antibodies raised against DCs.

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艾美捷科技代理Gene Tools品牌


Gene Tools是一家生产和销售Morpholino Anti-sense oligos(反义寡核苷酸)的公司,其产品专门用于基因调控的科学研究和药物开发。Gene Tools公司由多位资深科学家组成,为全球客户提供免费的技术咨询和Morpholino 序列设计服务。 Morpholino作为基因调控研究的最佳工具,已被广泛用于:阻断靶mRNA 翻译 (下调基因);诱导RNA选择性剪接 (下调或上调基因);阻断 miRNA;阻断病毒 RNA;阻断 non-coding RNA。


Morpholino介绍

Morpholino属于第三代反义寡核苷酸,主要通过阻断蛋白质翻译过程而达到抑制目标基因功能的作用,目前已经广泛用于发育生物学和细胞学实验中,并取得了非常好的实验效果。

Morpholino以吗啉环类似物为基本骨架,这种独特的结构特性使得Morpholino 具有以下几个特点:

● 与其他类型的反义寡核苷酸相比,Morpholino 能更好地抵抗核酸酶的作用;

● Morpholino 与靶序列结合后通过空间位阻效应发挥作用, 不激活RNaseH,不引起目标基因mRNA 的降解 ;

● 针对翻译起始位点区设计的Morpholino 用于抑制蛋白质的翻译,针对 pre-mRNA 剪切位点区设计的Morpholino 可影响mRNA 剪切,得到不 同的转录本,可以方便地用于目标基因结构域的突变研究;

● 与靶序列结合能力强,可以渗入mRNA 的二级结构, 并且特异性好。

配合Morpholino 的使用,Gene Tools公司开发了相应的递送系统,可以安全、高效地将Morpholino 输送至胞内,因此,Morpholino 也可以用于遗传学研究和新药靶标的发现以及验证。此外,Morpholino 可以标上荧光基团、亲和标签以及活性反应基团,以供不同的研究需要。

Gene Tools代理.png


Gene Tools公司产品介绍

● Custom Morpholino:可以根据目标基因序列定制设计并合成Morpholino,用于体外细胞实验或某些直接显微注射的模型(如斑马鱼、非洲爪蟾胚胎)。

● Vivo-Morpholino:适用于活体动物模型(小鼠,大鼠,狗,灵长类等),细胞培养,器官培养等。通过特殊的末端修饰,提高了其穿透细胞膜进入组织细胞的能力,使得在成年动物(主要是小鼠、大鼠)中进行系统性基因功能研究成为可能。

● Prepared Control Oligos:根据特定需求合成细胞穿透肽偶联的 Morpholino。适用于活体动物模型(小鼠,大鼠,狗,灵长类等),细胞培养,器官培养等。


产品名称Short DescriptionOligo sequenceSKU
Standard Control Oligo Negative control oligoCCTCTTACCTCAGTTACAATTTATAPCO-StandardControl-100
Vivo-Morpholino Standard Control OligoNegative Vivo-Morpholino control oligoCCTCTTACCTCAGTTACAATTTATAPCO-VivoStandardControl-100
Random Control Oligo 25-N25-base random sequence mixtureNNNNNNNNNNNNNNNNNNNNNNNNNPCO-RandomControl-25N-100
Zebrafish p53 oligoDanio rerio apoptosis suppression oligoGCGCCATTGCTTTGCAAGAATTGPCO-ZebrafishP53-100
Zebrafish Chordin Positive Control OligoDanio rerio Chordin positive control oligoATCCACAGCAGCCCCTCCATCATCCPCO-ZebrafishChordin-100-F
Clawed Frog Beta Catenin Positive Control OligoXenopus laevis Beta Catenin antisense oligoTTTCAACCGTTTCCAAAGAACCAGGPCO-BetaCatenin-100-F
Green Fluorescent Protein Positive ControlTranslation blocker for GFP targetACAGCTCCTCGCCCTTGCTCACCATPCO-GFPControl-100
Vivo-Morpholino GFP Positive ControlTranslation blocker for GFP target (Vivo-Morpholino)ACAGCTCCTCGCCCTTGCTCACCATPCO-VivoGFPControl-100
Fluoresceinated Vivo-Morpholino Std ControlNegative Vivo-Morpholino control oligo with 5'FluoresceinCCTCTTACCTCAGTTACAATTTATAPCO-FluorVivoStandardControl-100-F


● Endo-Porter:为了解决Morpholino在体外培养细胞中摄取效率低的问题,Gene Tools 开发了 Endo-Porter 这种特殊的转染试剂。它通过温和的内吞体逃逸机制帮助Morpholino进入细胞质。



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