antibodies 'may aid hiv jab hunt' 新抗体将有助于对付艾滋病病-凯发k8官网

antibodies 'may aid hiv jab hunt' 新抗体将有助于对付艾滋病病
文章来源:未知 文章作者:meng 发布时间:2009-09-04 06:01 字体: [ ] 
(单词翻译:双击或拖选)

two powerful new antibodies to hiv have been found which could aid development of a 1, researchers say.

研究人员称,两种强有力的艾滋病病毒抗体已经被发现,这将会促进疫苗的研究。

developing an hiv vaccine has proved difficult
developing an hiv vaccine has proved difficult

researchers, led by the international aids vaccine initiative (iavi), say the discovery reveals a potential new achilles heel in the virus's defences.

the antibodies are the first of their type to be identified in more than a decade, and the first to be 2 from 3 in developing countries.

details of the breakthrough feature in the journal science.

the researchers hope it could lead to more similar antibodies being found, which in turn could aid the hunt for an effective hiv vaccine.

wayne koff, of the iavi, said: "the findings themselves are an exciting advance toward the goal of an effective aids vaccine because now we've got a new, potentially better target on hiv to focus our efforts for vaccine design.

"and having identified this one, we're set up to find more, which should further accelerate global efforts in aids vaccine development."

the new antibodies - broadly neutralising antibodies - are produced by a minority of people with hiv.

they are distinct from(与……有差别) other antibodies to hiv because they neutralise(中和) a high percentage of the many types of hiv in circulation worldwide.

it is widely believed that to prevent hiv infection a vaccine would need to teach the body to produce these powerful antibodies before exposure to the virus.

animal experiments suggest that conceptually such a vaccine would work.

before this finding only four antibodies to hiv had been discovered that were widely agreed to be broadly neutralising.

however, all four worked by 5 to a place on hiv that has proven difficult for vaccine-makers to exploit.

accessible target

the latest duo are potentially much more useful because they 4 to the virus at sites which scientists believe are more accessible.

in theory that should make it easier to produce a vaccine which could 6 the body to start producing these key antibodies.

and because the antibodies are very powerful they would not have to be produced in very large quantities to confer protection.

the two new antibodies target one of the proteins that form a 7 used by hiv to infect cells.

these proteins are highly-variable and thus difficult for the immune system to attack.

but the new antibodies target an area of one protein that does not change.

keith alcorn, of the hiv information service nam, said: "identifying antibodies that act against a broad range of hiv types will be critical for the development of an effective vaccine.

"we need to remember that this is an early stage of research.

"hiv vaccine research will be a long-term effort and we certainly shouldn't expect these findings to lead to a vaccine in a few years.

"a lot more work on antibodies and vaccine design is going to be needed to come up with 8 that can be put into clinical trials."

the iavi team joined forces with the scripps research institute, and the biotechnology companies theraclone sciences and 9 biosciences on the project.



点击收听单词发音收听单词发音  

1 ki1wv     
n.牛痘苗,疫苗;adj.牛痘的,疫苗的
参考例句:
  • the polio vaccine has saved millions of lives.脊髓灰质炎疫苗挽救了数以百万计的生命。
  • she takes a vaccine against influenza every fall.她每年秋季接种流感疫苗。
2 bqmztd     
adj.与世隔绝的
参考例句:
  • his bad behaviour was just an isolated incident. 他的不良行为只是个别事件。
  • patients with the disease should be isolated. 这种病的患者应予以隔离。
3 89b49c2bd44d6d6906d17dca7315044b     
n.捐赠者( donor的名词复数 );献血者;捐血者;器官捐献者
参考例句:
  • please email us to be removed from our active list of blood donors. 假如你想把自己的名字从献血联系人名单中删去,请给我们发电子邮件。
  • about half this amount comes from individual donors and bequests. 这笔钱大约有一半来自个人捐赠及遗赠。 来自《简明英汉词典》
4 vt8zi     
vt.捆,包扎;装订;约束;使凝固;vi.变硬
参考例句:
  • i will let the waiter bind up the parcel for you.我让服务生帮你把包裹包起来。
  • he wants a shirt that does not bind him.他要一件不使他觉得过紧的衬衫。
5 2yezwb     
有约束力的,有效的,应遵守的
参考例句:
  • the contract was not signed and has no binding force. 合同没有签署因而没有约束力。
  • both sides have agreed that the arbitration will be binding. 双方都赞同仲裁具有约束力。
6 wuswl     
vt.刺激,使兴奋;激励,使…振奋
参考例句:
  • your encouragement will stimulate me to further efforts.你的鼓励会激发我进一步努力。
  • success will stimulate the people for fresh efforts.成功能鼓舞人们去作新的努力。
7 ltnzo     
n.长钉,钉鞋;v.以大钉钉牢,使...失效
参考例句:
  • the spike pierced the receipts and held them in order.那个钉子穿过那些收据并使之按顺序排列。
  • they'll do anything to spike the guns of the opposition.他们会使出各种手段来挫败对手。
8 c9bb57973a82c1e95c7cd0f4988a1ded     
疫苗,痘苗( vaccine的名词复数 )
参考例句:
  • his team are at the forefront of scientific research into vaccines. 他的小组处于疫苗科研的最前沿。
  • the vaccines were kept cool in refrigerators. 疫苗放在冰箱中冷藏。
9 zewx4     
n.字母组合
参考例句:
  • there was a monogram in the corner in which were the initials"r.k.b.".原来手帕角上有个图案,其中包含着rkb三个字母。
  • when we get married i don't have to change the monogram on my luggage.当我们结婚后,我连皮箱上的字母也不用改。
tag标签: hiv
发表评论
请自觉遵守互联网相关的政策法规,严禁发布色情、暴力、反动的言论。
评价:
表情:
验证码:点击我更换图片
最新评论
网站地图