• 有望实现星际旅行的七种方式:或拜访比邻星与其他宇宙邻居 2019-02-21
  • 穆帅对轰媒体:一群爱因斯坦 靠我给你们口饭吃 2019-02-21
  • 流水的商家,铁打的商铺:微信小程序的天时地利人和 2019-02-19
  • 一组连号连开两期 双色球头奖开8注686万落6地 2019-02-18
  • 筑梦路上1000日 深改组交出靓丽答卷 2019-02-11
  • 所有人变成素食主义者世界会怎样?温室气体排放减少70% 2019-02-11
  • 中国战舰靠泊国外港口 开辟了第3种补给方式 2019-02-04
  • 卡佩罗:最后时刻我们接管了比赛 特谢拉轻微拉伤 2019-02-04
  • 收评:午后黑色系跳水 两粕重挫 2019-02-02
  • 太平洋汤加群岛发生6.4级地震 震源深度180公里 2019-01-18
  • 新浪跨国沙龙:张欣赫芬顿对谈女性领导力 2019-01-18
  • 李晨:冰冰私下像小女孩 喜欢粉色不娇气 2019-01-16
  • 英皇证券:港股料牛皮待变 留意九仓系股份 2019-01-16
  • 曼城瓜帅冲击56年神纪录 大将:没冠军再神也没用 2019-01-14
  • 广电总局:直播平台和个人必须持证上岗 2019-01-08
  • Global EditionASIA 中文双语Fran?ais
    China
    Home / China / Innovation

    十一选五上海走势图:New anti-cancer weapon: Nanotech

    By Zhou Wenting | China Daily | Updated: 2018-04-13 07:23

    上海十一选五360彩票 www.czyym.com Scientists in Shanghai say they have made a breakthrough in researching an alternative to chemotherapy that would treat tumors in a safe, efficient way with zero side effects for patients.

    Chemotherapy has long been used in the treatment of cancer and involves one or a combination of drugs being introduced to the patient's bloodstream to kill cancer cells. Yet it affects healthy cells, too, causing lower immunity to infection, fatigue and hair loss.

    On Tuesday, a team from the Shanghai Institute of Ceramics, which is part of the Chinese Academy of Sciences, announced it has devised a therapy using inorganic, nontoxic nanoparticles that can travel around the body and target only tumors, leaving healthy cells unaffected.

    "Laboratory testing on mice has shown that tumors shrank by 85 percent after receiving the therapy," said Shi Jianlin, lead researcher at the institute.

    For the tests, researchers give two nanoparticles-Fe3O4 and SiO2, the latter being a transport agent-and glucose oxidase through intravenous injection to mice.

    The particles target tumor cells owing to special microenvironment of acidity and high glucose content, while the chemical compounds combined will trigger reactions in tumor cells and produce a highly toxic active substance that will kill the cells, Shi said.

    He said his team of scientists has also created a nanoparticle called Mg2Si, which is nontoxic in a neutral environment of healthy tissue and only triggers a reaction in the acid environment of a tumor.

    "The reaction will consume a large amount of oxygen molecules in the tumor cells and block the vascular system in the tumor cells so as to prevent the supply of oxygen molecules and nutrients from outside. The tumor cells will eventually starve to death," he explained.

    Papers on the research were published in Chemical Society Reviews in February, Nature Nanotechnology in December and Nature Communications in August.

    "This contribution reports a nice overview of nanoparticle-triggered catalytic chemical reactions for cancer therapy. The authors provide a complete state of the art of the topic emphasizing the different approaches that can be used," reads one peer review in Chemical Society Reviews.

    Chen Qinfen, a doctor specializing in hematology at Fudan University's Huashan Hospital in Shanghai, said the new therapy sounds exciting.

    "During and after chemotherapy, patients of lymphoma and leukemia will suffer from a decrease in blood platelets or white blood cells, or impairment in the liver, kidney or nervous system. More than half of leukemia patients die of complications after chemotherapy," she said.

    "The particular advantage of nanoparticles is that they are small enough to enter the cytoplasm and nucleus, which makes the treatment more precise and efficient."

    Shi stressed on Tuesday that the research is still at the stage of lab tests and in the future his team may have to pick the most applicable approach for clinical trials.

    "Lab tests also proved that our therapies are able to prevent tumor metastasis. We hope it will also make contributions clinically," he said.

    Top
    BACK TO THE TOP
    English
    Copyright 1995 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
    License for publishing multimedia online 0108263

    Registration Number: 130349
     
  • 有望实现星际旅行的七种方式:或拜访比邻星与其他宇宙邻居 2019-02-21
  • 穆帅对轰媒体:一群爱因斯坦 靠我给你们口饭吃 2019-02-21
  • 流水的商家,铁打的商铺:微信小程序的天时地利人和 2019-02-19
  • 一组连号连开两期 双色球头奖开8注686万落6地 2019-02-18
  • 筑梦路上1000日 深改组交出靓丽答卷 2019-02-11
  • 所有人变成素食主义者世界会怎样?温室气体排放减少70% 2019-02-11
  • 中国战舰靠泊国外港口 开辟了第3种补给方式 2019-02-04
  • 卡佩罗:最后时刻我们接管了比赛 特谢拉轻微拉伤 2019-02-04
  • 收评:午后黑色系跳水 两粕重挫 2019-02-02
  • 太平洋汤加群岛发生6.4级地震 震源深度180公里 2019-01-18
  • 新浪跨国沙龙:张欣赫芬顿对谈女性领导力 2019-01-18
  • 李晨:冰冰私下像小女孩 喜欢粉色不娇气 2019-01-16
  • 英皇证券:港股料牛皮待变 留意九仓系股份 2019-01-16
  • 曼城瓜帅冲击56年神纪录 大将:没冠军再神也没用 2019-01-14
  • 广电总局:直播平台和个人必须持证上岗 2019-01-08
  • 350| 576| 96| 318| 497| 599| 442| 538| 895| 423|