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金纳米颗粒的细胞毒性和促细胞生长作用 被引量:5
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作者 江龙 王清叶 崔文娟 《化学进展》 SCIE CAS CSCD 北大核心 2013年第10期1631-1641,共11页
虽然对于纳米金颗粒(AuNPs)和细胞相互作用的研究有着大量的报道,但是其结果常常是互相矛盾的。对其机理的研究更是十分的贫乏。这些研究中的一个核心问题,即AuNPs对生物体或细胞是有毒的还是有利于其生长的。虽然AuNPs在生物体内的作... 虽然对于纳米金颗粒(AuNPs)和细胞相互作用的研究有着大量的报道,但是其结果常常是互相矛盾的。对其机理的研究更是十分的贫乏。这些研究中的一个核心问题,即AuNPs对生物体或细胞是有毒的还是有利于其生长的。虽然AuNPs在生物体内的作用远比体外的简单细胞反应要复杂得多,涉及到与生物体中多种组分的作用,从而引起极为不同的免疫反应、代谢机理等。但是在体外进行纳米颗粒的毒性和促进细胞生长相互作用的微观研究仍将为AuNPs在体内的作用提供十分重要的理论依据。本综述主要从AuNPs尺寸、表面电荷、颗粒聚集状态等方面介绍近年来关于AuNPs的细胞毒性和促细胞生长的体外研究结果,并对其作用机理进行初步的探讨。 展开更多
关键词 纳米金颗粒聚集体 细胞毒性和促细胞生长 细胞胞吞作用 细胞毒性动力学
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Developments in metastatic pancreatic cancer:Is gemcitabine still the standard? 被引量:3
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作者 Jie-Er Ying Li-Ming Zhu Bi-Xia Liu 《World Journal of Gastroenterology》 SCIE CAS CSCD 2012年第8期736-745,共10页
In the past 15 years, we have seen few therapeutic advances for patients with pancreatic cancer, which is the fourth leading cause of cancer-related death in the United States. Currently, only about 6% of patients wit... In the past 15 years, we have seen few therapeutic advances for patients with pancreatic cancer, which is the fourth leading cause of cancer-related death in the United States. Currently, only about 6% of patients with advanced disease respond to standard gemcitabine therapy, and median survival is only about 6 mo. Moreover, phase Ⅲ trials have shown that adding various cytotoxic and targeted chemotherapeutic agents to gemcitabine has failed to improve overall survival, except in cases in which gemcitabine combined with erlotinib show minimal survival benefi t. Several metaanalyses have shown that the combination of gemcitabine with either a platinum analog or capecitabine may lead to clinically relevant survival prolongation, especially for patients with good performance status. Meanwhile, many studies have focused on the pharmacokinetic modulation of gemcitabine by fi xed-dose administration, and metabolic or transport enzymes related to the response and toxicity of gemcitabine. Strikingly, a phase Ⅲ trial in 2010 showed that, in comparison to gemcitabine alone, the FOLFIRINOX regimen in patients with advanced disease and good performance status, produced better median overall survival, median progression-free survival, and objective response rates. This regimen also resulted in greater, albeit manageable toxicity. 展开更多
关键词 CHEMOTHERAPY Palliative therapy Metasta-sis Biomarkers Pancreatic neoplasms
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