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Corning® 15 mL PET Centrifuge Tubes, Rack Packed with Plug Seal Cap, Sterile

Corning® 15mL PET Centrifuge Tubes, Rack Packed with Plug Seal Cap, Sterile, 50/Rack, 500/Case

公司名称: Corning
产品编号: 430055
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Long-term in vitro Culture of Cryptosporidium parvum
Author:
Date:
2018-08-05
[Abstract]  Continuous in vitro growth of Cryptosporidium parvum has proved difficult and conventional in vitro culture techniques result in short-term (2-5 days) growth of the parasite resulting in thin-walled oocysts that fail to propagate using in vitro cultures, and do not produce an active infection using immunosuppressed or immunodeficient mouse models (Arrowood, 2002). Here we describe the use of hollow fiber bioreactors (HFB) that simulate in vivo conditions by providing oxygen and nutrients to host intestinal cells from the basal surface and permit ... [摘要]  Cryptosporidium parvum 的连续体外生长已证明是困难的,并且常规体外培养技术导致短期(2-5天)生长寄生虫导致薄壁卵囊不能使用体外培养物繁殖,并且不使用免疫抑制或免疫缺陷小鼠模型产生活跃感染(Arrowood,2002)。在这里,我们描述了中空纤维生物反应器(HFB)的使用,通过提供氧气和营养物质从基础表面宿主肠细胞模拟体内条件,并允许建立低氧化还原,高营养环境顶面。当接种10 5 C时。 parvum (爱荷华州分离物)卵囊生物反应器在14天后每ml产生10个 8 卵囊(20ml额外毛细血管体积),并保持2年以上。使用TCR-α免疫缺陷小鼠模型的体内感染性研究显示,在6,12和18个月时从生物反应器产生的卵囊与用于启动培养的亲本Iowa分离物无法区分。 HFB产生的卵囊具有与亲本爱荷华分离物类似的百分比分析。

【背景】 Cryptosporidium parvum 是人和其他哺乳动物肠道的细胞内专性寄生虫,导致急性腹泻。该疾病在免疫功能正常的个体中是自限性的,然而,在免疫功能低下的成人和幼儿中,该疾病可能危及生命(Kotloff,2017)。它是经济资源低的国家中三种被诊断出的儿童肠道疾病之一(Kotloff et al。,2013; Sow et ...

Identification of Insertion Site by RESDA-PCR in Chlamydomonas Mutants Generated by AphVIII Random Insertional Mutagenesis
Author:
Date:
2018-02-05
[Abstract]  Chlamydomonas reinhardtii is frequently used as a model organism to study fundamental processes in photosynthesis, metabolism, and flagellar biology. Versatile tool boxes have been developed for this alga (Fuhrmann et al., 1999; Schroda et al., 2000; Schroda, 2006). Among them, forward genetic approach has been intensively used, mostly because of the high efficiency in the generation of hundreds of thousands of mutants by random insertional mutagenesis and the haploid nature therefore phenotypic analysis can be done in the first generation (Cagnon et al., ... [摘要]  莱茵衣藻(Chlamydomonas reinhardtii)是光合作用,代谢和鞭毛生物学的基础研究者。已经为这种藻类开发了多功能的工具箱(Fuhrmann等人,1999; Schroda等人,2000; Schroda,2006)。其中,正向遗传方法已经被广泛使用,主要是因为通过随机插入诱变产生了数十万个突变体的高效率,并且可以在第一代进行单倍体性质表型分析(Cagnon等人 2013,Tunçay et。 2013)。在正向遗传方法中应用高通量方法的主要瓶颈是鉴定与观察到的表型相关的遗传损伤。在该协议中,我们详细描述了最初在(González-Ballester等人,2005)中报道的限制性定点扩增PCR(RESDA-PCR)的改进版本。优化包括引物组合的优化,DNA聚合酶的选择,PCR循环参数的优化以及PCR产物直接测序的应用。这些修改使得获得特定的PCR产物变得更加容易,并且加速了亚克隆步骤以更快地获得测序数据。


【背景】除了限制酶位点定向扩增PCR(RESDA-PCR)(González-Ballester等人,2005)之外,还发现了其它几种分子技术。 包括Genome ...

In vitro Chondrogenic Hypertrophy Induction of Mesenchymal Stem Cells
Author:
Date:
2016-12-05
[Abstract]  To investigate underlying mechanism of chondrogenic hypertrophy, we need proper in vitro hypertrophic model of mesenchymal stem cells (MSCs). This protocol describes our defined method for induction of in vitro chondrogenic hypertrophy of human umbilical cord blood-derived MSCs (hUCB-MSCs). By adding thyroid hormone (T3; triiodothyronine) and minimum osteogenic-inducing factors to culture medium, we could induce hypertrophy of hUCB-MSCs in vitro. Hypertrophic induction was validated using immunohistochemical analysis, Western blotting and reverse transcriptase ... [摘要]  为了研究软骨形成性肥大的基础机制,我们需要适当的体外间充质干细胞(MSC)的增生模型。该协议描述了我们定义的诱导人脐带血衍生的MSC(hUCB-MSC)的体外软骨形成性肥大的方法。通过将甲状腺激素(T3;三碘甲状腺原氨酸)和最小成骨诱导因子添加到培养基中,我们可以在体外诱导hUCB-MSCs的增生。使用免疫组织化学分析,Western印迹和逆转录酶聚合酶链反应验证肥大性诱导。
关键词:间充质干细胞,体外软骨形成性肥大,成软骨分化,三碘甲腺原氨酸;

[背景] ...

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