寨卡病毒可能用来治疗一种顽固性成人脑癌
文章来源:未知 文章作者:enread 发布时间:2017-09-21 13:45 字体: [ ]  进入论坛
(单词翻译:双击或拖选)
The Zika virus can wreak1 havoc2 on the brain of a developing fetus3, but its destructive power may also be harnessed to fight a stubborn form of adult brain cancer, researchers said.
 
研究人员近日称,虽然寨卡病毒会严重损害胎儿大脑,但其破坏性也可以被用来治疗一种顽固性成人脑癌。
 
Early studies have shown the mosquito-borne virus can destroy cells responsible for glioblastoma, the most common form of brain cancer.
 
Glioblastoma affects 12,000 people per year in the United States, and was recently diagnosed in Senator John McCain.
 
The standard treatment is chemotherapy and radiation. But most patients die within two years.
 
The secret to Zika's apparent success, the latest experiments show, is that the virus specifically takes aim at brain cancer stem cells, the kind that tend to survive chemotherapy and spread.
 
When a pregnant woman is infected with Zika, she faces a higher risk of bearing an infant with an unusually small head because Zika destroys these cells, leading to the irreversible condition known as microcephaly.
 
Zika tends to attack neuroprogenitor cells, which are common in fetuses4 but rare in adults.
 
More work is needed before the treatment can be safely attempted in humans.
 
The virus would likely be injected directly into the brain during surgery to remove the primary tumor5.
 
Extra studies on Zika's effects on the brain tissue of epilepsy patients showed the virus did not infect noncancerous brain cells.


点击收听单词发音收听单词发音  

1 wreak RfYwC     
v.发泄;报复
参考例句:
  1. She had a burning desire to wreak revenge.她复仇心切。
  2. Timid people always wreak their peevishness on the gentle.怯懦的人总是把满腹牢骚向温和的人发泄。
2 havoc 9eyxY     
n.大破坏,浩劫,大混乱,大杂乱
参考例句:
  1. The earthquake wreaked havoc on the city.地震对这个城市造成了大破坏。
  2. This concentration of airborne firepower wrought havoc with the enemy forces.这次机载火力的集中攻击给敌军造成很大破坏。
3 fetus ekHx3     
n.胎,胎儿
参考例句:
  1. In the fetus,blood cells are formed in different sites at different ages.胎儿的血细胞在不同时期生成在不同的部位。
  2. No one knows why a fetus is not automatically rejected by the mother's immune system. 没有人知道为什么母亲的免疫系统不会自动排斥胎儿。
4 fetuses eae25b106f4ed68558631a5bf44c9293     
n.胎,胎儿( fetus的名词复数 )
参考例句:
  1. DNA was extracted from fetuses at mid-gestation, about 10 days past conception. DNA从受孕大约10天后的中期妊娠胚胎中提取。 来自互联网
  2. Brucellosis is a disease that causes fetuses to abort in cattle. 普鲁士菌病是一种可以导致牲畜胎儿夭折的疾病。 来自互联网
5 tumor fKxzm     
n.(肿)瘤,肿块(英)tumour
参考例句:
  1. He was died of a malignant tumor.他死于恶性肿瘤。
  2. The surgeons irradiated the tumor.外科医生用X射线照射那个肿瘤。
TAG标签: brain virus Zika
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