【摘 要】
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Small molecule regulators of microRNA could be important tools for the elucidation of the detailed mechanisms ofmiRNA function and could also serve as lead structures for the development of new therap
【机 构】
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Jiangsu Diabetes Center, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Scienc
论文部分内容阅读
Small molecule regulators of microRNA could be important tools for the elucidation of the detailed mechanisms ofmiRNA function and could also serve as lead structures for the development of new therapeutic agents.
其他文献
近年来,随着分子肿瘤学的发展,恶性肿瘤发生、发展的机制正被逐步阐明,抗肿瘤药物研发的焦点正在从传统的抗肿瘤药物转移到靶向抗肿瘤药物.以一些与肿瘤发生、发展、转移和凋亡密切相关的分子或基因作为药物作用的靶点,设计选择性作用于某个特定靶点的新型抗癌药物已成为当今抗肿瘤药物研究研发的重要方向.在所有目前被研究的药理学靶标中,估计超过1/4的靶标是蛋白激酶.
Guanine-rich oligonucleotides being able to self-associate to form G-quadruplex, However, all the G-quadruplex structures investigated to date are formed by one, two and four G-rich strands.
端粒酶是一种RNA和蛋白质的复合体,具有逆转录酶的活性.研究发现,在85%以上的各类肿瘤细胞中,端粒酶活性较高,而大多数正常细胞不表达端粒酶.端粒酶抑制剂被认为是一类潜在的高选择性的抗肿瘤药物,比传统的化学疗法和基因疗法有更高的特异性和较少的副作用,因此端粒酶抑制剂的开发研究为恶性肿瘤的早期诊断和治疗开辟了新的途径,已成为化学和生物学的研究热点之一.
端粒是位于染色体末端具有特定重复序列的DNA.人类端粒末端为富含鸟嘌呤的重复序列可通过鸟嘌呤间Hoogsteen氢键形成G-四链体[1].大多数正常组织中不能检测到端粒酶的活性,但是在大部分肿瘤细胞(>85%)中,端粒酶则表现出了很高的活性,这表明端粒酶的活性与肿瘤的形成、发展是有一定相关性的[2].
Docking-based virtual screening of large compound libraries has been widely applied to the early stage of lead discovery and is one of the most time-consuming steps in computer aided drug design.
三氧化二砷(ATO)是一种已被美国食品和药物管理局(FDA)批准治疗急性早幼粒细胞白血病的前线药物.初步研究表明三氧化二砷可以在较高剂量条件下有效杀死肿瘤细胞.但由于三氧化二砷以砷酸形式存在于中性溶液中,大大降低了其在生物体系中的循环时间.与此同时,由于三氧化二砷无法进行表面修饰,导致无法实现靶向治疗,从而降低了三氧化二砷在抗癌时的药效.
A novel electrochemical sensor for bovine hemoglobin (BHb) recognition and detection was prepared by surface molecularly imprinted technique.Aldehyde groups functionalized silica microspheres were mod
Based on the self-assembly of DNA, serials of asymmetric macrocyclic metallosalen-DNA conjugates have been designed and synthesized, M2L(ClO4)4 (M =Zn2+, Cu2+, Cd2+, Mn2+, Ni2+) (scheme 1), characteri
RNA干扰是普遍存在于哺乳动物细胞中的保守的转录后的基因调控现象.长度为21-25nt的双链小干扰RNA (siRNA)以及内源性microRNA (miRNA)按照碱基互补配对的原则高效沉默靶标信使RNA(mRNA)[1].大规模基于RNA干扰的分析方法受到脱靶效应以及干扰素响应等现象的影响,主要是由使用高浓度的siRNA所致,但降低siRNA的浓度会伴随着基因沉默效率的降低[2].
由于Au和Fe3O4较好的生物相容性和协同作用,Fe3O4@Au功能复合纳米粒子为生物分子的固定和高灵敏检测提供了很好生物平台,在生物传感器和其他生物应用领域具有潜在的应用前景.