首页
登录
职称英语
[originaltext] British scientists are preparing to launch trials of a radica
[originaltext] British scientists are preparing to launch trials of a radica
游客
2024-03-07
22
管理
问题
British scientists are preparing to launch trials of a radical new way to fight cancer, which kills tumours by infecting them with viruses like the common cold. If successful, virus therapy could eventually form a third pillar alongside radiotherapy and chemotherapy in the standard arsenal against cancer, while avoiding some of the side-effects.
Leonard Seymour, a professor of gene therapy at Oxford University, will lead the trials later this year. One of the country’s leading geneticists, Prof Seymour has been working with viruses that kill cancer cells directly, while avoiding harm to healthy tissue. "In principle, you’ve got something which could be many times more effective than regular chemotherapy," he said.
Preliminary research on mice shows that the viruses work well on tumours resistant to standard cancer drugs. "It’s an interesting possibility that they may have an advantage in killing drug-resistant tumours, which could be quite different to anything we’ve had before."
Researchers have known for some time that viruses can kill tumour cells and some aspects of the work have already been published in scientific journals. American scientists have previously injected viruses directly into tumours but this technique will not work if the cancer is inaccessible or has spread throughout the body.
Prof Seymour’s innovative solution is to mask the virus from the body’s immune system, effectively allowing the viruses to do what chemotherapy drugs do—spread through the blood and reach tumours wherever they are. The big hurdle has always been to find a way to deliver viruses to tumours via the bloodstream without the body’s immune system destroying them on the way.
The therapy would be especially useful for secondary cancers, which sometimes spread around the body after the first tumour appears. "There’s an awful statistic of patients in the west with malignant cancers; 75% of them go on to die from secondary cancers," said Prof Seymour.
Several more years of trials will be needed, before the therapy can be considered for use in the NHS. Though the approach will be examined at first for cancers that do not respond to conventional treatments, Prof Seymour hopes that one day it will be applied to all cancers.
20.What’s the possible advantage of virus therapy according to Prof Seymour?
21.What’s the big challenge facing virus therapy?
22.What does Prof Seymour want to do with virus therapy?
选项
A、How to find a way to deliver viruses to tumours effectively.
B、How to inject viruses directly into tumours.
C、How to allow viruses to do what chemotherapy drugs do.
D、How to strengthen the body’s immune system.
答案
A
解析
讲话中提到:“这种疗法的巨大困难始终在于需要找到一种方法将病毒通过血流输送到肿瘤,并确保其在输送过程中不至于被身体的免疫系统所破坏。”由此可知答案为A。题干中的the big challenge是对讲话中the big hurdle的同义替换,而find a way to deliver viruses to tumours是原词复现。其他三项均不符合讲话内容,故排除。
转载请注明原文地址:https://tihaiku.com/zcyy/3513843.html
相关试题推荐
[originaltext]W:OK,I’vegotallthepaperworkhereforyourapplication.Every
[originaltext]W:OK,I’vegotallthepaperworkhereforyourapplication.Every
[originaltext]M:ItsaysherethatyougraduatedfromUniversityofPennsylvania
[originaltext]W:OK,I’vegotallthepaperworkhereforyourapplication.Ever
[originaltext]W:OK,I’vegotallthepaperworkhereforyourapplication.Ever
[originaltext]W:OK,I’vegotallthepaperworkhereforyourapplication.Ever
[originaltext]W:OK,I’vegotallthepaperworkhereforyourapplication.Ever
[originaltext]W:OK,I’vegotallthepaperworkhereforyourapplication.Ever
[originaltext]W:OK,I’vegotallthepaperworkhereforyourapplication.Ever
[originaltext]M:ItsaysherethatyougraduatedfromUniversityofPennsylvani
随机试题
AsI’llbeawayforatleastayear,I’dappreciate______fromyounowandthen
Pronouncingalanguageisaskill.Everynormalpersonisexpertintheskil
[originaltext]M:Amelia,youseemverybusynow.ButIdohavesomethingtotel
《城市居住区规划设计规范》(GB50180—93)(2002年版)规定:面街布置
关于维生素B缺乏,下列描述哪一项是错误的A.巨核细胞的核分叶过多 B.神经症状
患者,女性,确诊为系统性红斑狼疮,医嘱避免日光直射,病室紫外线消毒时应回避,外出
下列关于合作体和联合体的陈述中,正确的有()。A.合作体在合同结构上与联
高利贷转贷罪侵犯的客体是()。A.国家对金融机构的准入管理制度 B.国家对贷
根据《期货经营机构投资者适当性管理实施指引(试行)》规定,投资者提供的信息发生重
关于食物中毒特征,错误的是A.暴发而潜伏期短 B.临床表现相似 C.无传染性
最新回复
(
0
)