大学职业资格刷题搜题APP
创建自己的小题库
搜索
【单选题】
Using HIV Virus to Cure Cancer
Scientists are planning to use human immunodeficiency (免疫缺陷) virus (HIV), one of mankind’s most feared viruses, as a carrier of genes which can fight cancer and a range of diseases that cannot be cured. The experts say HIV has an almost perfect ability to avoid the body’s immune (免疫的) defenses, it ideal for carrying replacement genes into patients’ bodies, according to the Observer. FDA has approved the plan of using HIV to cure cancer in humans.
A. Right B. Wrong C. Not mentioned
A.
A team at the California-based Salk Institute, one of the world’s leading research centers on biological sciences, has created a special new breed of HIV and has started negotiations with the US Food and Drug Administration (FDA) to begin clinical gene therapy (治疗) trials this year. The first trials are expected to involve patients suffering from cancers that cannot be cured by surgery although project leader Professor Inder Verma said the HIV technique would have "far wider applications".
B.
The plan remains very likely to cause controversy since it involves use of a virus which has caused more than 22 million deaths around the world in the past two decades. Verma said that the idea of using HIV for a beneficial purpose was "shocking" but the fierce nature of HIV had disappeared by having all six of the potentially deadly genes removed.
C.
Illnesses such as various cancers are caused when a gene in a patient’s body fails to work properly. In the past two years, breakthroughs in genetics (遗传学) have led gene therapy scientists to try and replace the genes that do not function normally.
D.
Unfortunately, the body’s immune defenses have been known to attack the modified genes and make them lose their effects before they can start their task and progress in the field has been held up by the lack of a suitable carrier.
E.
The HIV virus has the ability to escape from, and then destroy, the immune defense ceils designed to protect our bodies and this makes it attractive to scientists as a way of secretly conveying replacement genes into patients’ bodies.
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈
收藏
举报
参考答案：
举一反三
【单选题】A．CD2、CD3、CD4、CD7、CD8B．CDl0、CDl9、CD20C．CDl6、CD56D．CDl3、CDl4、CDl5、CD33E．TdT、CD33、CD34 T细胞及其肿瘤的免疫标记特征是：
A.
A．
B.
B．
C.
C．
D.
D．
E.
E．
【单选题】肿瘤、糖尿病及免疫缺陷患者，在长期使用广谱抗菌药物、免疫抑制剂、激素、放射治疗等过程中，机体免疫力下降，出现内源性真菌如白念珠菌感染，这属于（ ）。
A.
致病性真菌感染
B.
真菌超敏反应性疾病
C.
真菌毒素中毒
D.
机会致病性真菌感染
相关题目：
【单选题】A．CD2、CD3、CD4、CD7、CD8B．CDl0、CDl9、CD20C．CDl6、CD56D．CDl3、CDl4、CDl5、CD33E．TdT、CD33、CD34 T细胞及其肿瘤的免疫标记特征是：
A.
A．
B.
B．
C.
C．
D.
D．
E.
E．
【单选题】肿瘤、糖尿病及免疫缺陷患者，在长期使用广谱抗菌药物、免疫抑制剂、激素、放射治疗等过程中，机体免疫力下降，出现内源性真菌如白念珠菌感染，这属于（ ）。
A.
致病性真菌感染
B.
真菌超敏反应性疾病
C.
真菌毒素中毒
D.
机会致病性真菌感染
参考解析：
题目纠错 0
发布
