Results 21 to 30 of about 17,116 (168)
The role and mechanism of hnRNP A2/B1 in breast cancer [PDF]
核不均一核糖核蛋白A2/B1(hnRNPA2/B1)是hnRNP蛋白家族成员,在肿瘤细胞增殖与凋亡过程中具有重要作用。本实验为了探究hnRNPA2/B1蛋白在乳腺癌组织中的表达及其在乳腺癌细胞中的定位。研究hnRNPA2/B1在乳腺癌细胞中所涉及的主要功能、信号通路以及可变剪接和蛋白融合过程,并探究hnRNPA2/B1对细胞增殖、凋亡、迁移等生物功能的影响。从而阐明hnRNPA2/B1在乳腺癌中的作用机制,为肿瘤的机理研究、临床诊断和治疗提供一个新靶点。本实验用免疫组化方法检测hnRNPA2 ...
韩荣
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Changing Policy Narratives in Addressing Indonesia's Deforestation
ABSTRACT Indonesia's forests stand at the crossroads of economic prosperity and ecological preservation, where the demand for timber and palm oil clashes with the urgent need to protect biodiversity and mitigate climate change. The dual role of Indonesia's forests has led to decades of policy tension, primarily contesting their function as engines of ...
Hafidz Wibisono +7 more
wiley +1 more source
Mechanism of Mst1/2 kinases regulating PKCα-mediated the activation of Rac1 [PDF]
当病原细菌入侵机体时,吞噬细胞(如巨噬细胞和嗜中性粒细胞等)会通过吞噬泡吞噬细菌;这一过程还伴随着线粒体以及NADPH氧化酶向吞噬泡募集并释放大量的ROS,来杀伤和清除病原细菌;其中,结合GTP的激活形式的RhoGTP酶蛋白家族成员Rac1和Rac2对于NADPH氧化酶激活的细胞吞噬过程是必需的。本实验室已有研究表明,在髓系细胞(单核细胞、巨噬细胞和嗜中性粒细胞等)条件性双敲除Mst1和Mst2的小鼠(Mst1fl/flMst2fl/flLyz2-Cre,cDKO)中,与野生型小鼠相比 ...
熊晓琳
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ABSTRACT The limited osteogenic capacity of magnesium phosphate cement (MPC) has constrained its biomedical applications, underscoring the necessity to develop MPC with enhanced physical properties and bone‐forming capabilities. In this study, a multifunctional MPC system was developed by incorporating zoledronic acid‐loaded near‐infrared (NIR ...
Bin Wang +8 more
wiley +1 more source
Pyruvate kinase M2 inhibits cisplatin induced caspase-dependent apoptosis via ERK-mediated signaling pathway in hepatocellular carcinoma cells [PDF]
M2型丙酮酸激酶(pyruvatekinaseisoenzymetypeM2,PKM2)在肿瘤代谢 和生长等方面发挥重要作用。此外,PKM2还可作为蛋白激酶及辅助转录因子, 调控相关基因的转录表达,促进肿瘤细胞的增殖。我们实验室前期已经证实了 PKM2在肝细胞癌中高表达,并通过EGF/EGFR及TGFβ/TGFβR信号通路调控 肝癌细胞的迁移、侵袭。本课题研究目的在于进一步探索PKM2在肝癌细胞增 殖与凋亡方面的调控作用及相关分子生物学机制。 采用短发夹RNA转染HepG2和Huh7两株肝癌细胞株 ...
谌小春
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ABSTRACT Articular cartilage regeneration remains a significant challenge because of its limited intrinsic healing capacity and the inadequacy of conventional treatments for restoring structural and functional integrity. In this study, a novel injectable composite hydrogel scaffold was designed to mimic the extracellular matrix (ECM) of native ...
Zhong‐Lian Wu +13 more
wiley +1 more source
Roles of Receptor UNC5B in Vascular Development and Tumor Metastasis [PDF]
血管和神经系统都构成复杂的分支网络,遍布身体的各个区域,并提供信息的双向流动(感觉和运动神经元;动脉和静脉血流)。在体内分布上血管和神经纤维也总是相伴而行到达同一远隔靶位,二者在结构和功能上的相似性,暗示着它们可能受到某些共同信号分子调控。很多神经导向因子都参与了对血管生长发育的调节。UNC5B是首个被证实参与血管发育调控的UNC5受体。但目前对于UNC5B在血管发育中的作用因所使用的动物模型以及UNC5B基因敲除后对表型分析的不同而存在很大的争议,争议的焦点在于UNC5B是促进,还是抑制血管的发育 ...
解宏
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ABSTRACT The study by Morshed‐Behbahani et al. highlights that financial barriers are not the sole obstacle to accessing infertility treatment. To ensure equal access for all, infertility treatment should be regarded as a universal human right, with the public sector assuming responsibility for its provision.
Arturs Kalva, Girts Brigis
wiley +1 more source
Evaluation of Nonel N-(piperidin-4-yl)benzamide Derivatives as Potential Cell Cycle Inhibitors in HepG2 cells [PDF]
肝癌是目前世界上引起致高死亡率的疾病之一。细胞周期紊乱是引起肿瘤细胞增殖失控的主要原因,越来越多的学者致力于研究细胞周期抑制剂。索拉非尼作为一个多靶点广谱抗肿瘤药,近几年来基于其结构改造的化合物层出不穷。因此,本文以索拉非尼为先导化合物,保留其二芳醚结构,将脲基改造成酰胺键,并插入一个亲水基团,设计合成了一系列的索拉非尼类似物——N-(4-哌啶基)-苯甲酰胺类化合物,共合成了45个终产物,合成方法简单易操作,产物易纯化,且收率高。通过初步生物学活性的筛选 ...
侯瑾
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Review of additively manufactured zinc alloys by laser powder bed fusion for biomedical applications
Graphical abstract AbstractZinc (Zn) and its alloys have emerged as promising candidates for biomedical materials, owing to their controlled degradation kinetics, intrinsic biocompatibility, and the release Zn2+ ions which are known to promote bone regeneration and tissue healing.
Xuan Yang +5 more
wiley +1 more source

