rescue

English translation: use it to make live virus

GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW)
English term or phrase:rescue it into live virus
Selected answer:use it to make live virus
Entered by: Alami

16:49 Jun 7, 2010
English language (monolingual) [PRO]
Medical - Medical (general)
English term or phrase: rescue
It is although possible to chemically synthetise the variola virus genome and rescue it into live virus without access to an inventoried variola sample.
What is meant by "rescue it" in this context? transform or insert?
Thank you in advance!
Alami
Germany
Local time: 21:28
use it to make live virus
Explanation:

rescue it into live virus – use it to make live virus

Smallpox virus is almost extinct. Stocks of it are held only by the Americans and the Russians. This would be a good project for terrorists or totalitarian governments looking for an alternative to making nuclear weapons. In theory, it is remarkably easy. First, they synthesise a small amount of the smallpox virus DNA chemically. Then, they infect cells with another poxvirus and shortly afterwards transfect the synthetic smallpox virus DNA into the infected cells. As the infection proceeds, the poxvirus replicates its own DNA and makes new virus particles as usual. This DNA is packaged into the particles to complete the replication process. However, at the same time, the synthetic smallpox virus DNA is also recognised by the genetic system of the other poxvirus. So the synthetic smallpox virus DNA is also replicated and smallpox virus particles are made, based on the synthetic smallpox virus DNA, but using the genetic mechanisms of the other poxvirus. The newly made smallpox virus DNA is packaged into the newly made smallpox virus particles, which results in live, that is infectious, smallpox virus.

Here is an introduction to the problem:

http://news.bbc.co.uk/2/hi/2122619.stm

Here is an article about it:

http://www.plospathogens.org/article/info:doi/10.1371/journa...

And here is how to do it:

http://jvi.asm.org/cgi/content/full/77/13/7281
Selected response from:

Peter Nicholson (X)
Poland
Local time: 21:28
Grading comment
thanks a lot to all of you, and especially to Mr. Nicholson!
4 KudoZ points were awarded for this answer



SUMMARY OF ALL EXPLANATIONS PROVIDED
5revive
TargamaT team
5use it to make live virus
Peter Nicholson (X)
4insert/introduce/ inoculate
Roberto Rey
4make it become active (or alive)
Luiza Modesto
3the 'recovery' of live virus through... systhesis of viral genome
Carolyn Gille
3ensure replication / facilitate generation
Ildiko Santana


  

Answers


3 mins   confidence: Answerer confidence 4/5Answerer confidence 4/5
insert/introduce/ inoculate


Explanation:
; )

Roberto Rey
Colombia
Local time: 14:28
Specializes in field
Native speaker of: Native in EnglishEnglish, Native in SpanishSpanish
PRO pts in category: 4
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22 mins   confidence: Answerer confidence 4/5Answerer confidence 4/5
make it become active (or alive)


Explanation:
I am not sure if viruses are considered living beings today but I believe the text is saying that you can chemically synthesize a virus in a lab (the variola virus in this case) and get it to become active, or "alive." I personally think this is science fiction but I may be completely outdated. ;)

Luiza Modesto
Brazil
Local time: 16:28
Specializes in field
Native speaker of: Native in EnglishEnglish, Native in PortuguesePortuguese
PRO pts in category: 8
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32 mins   confidence: Answerer confidence 5/5
revive


Explanation:
http://www.yourdictionary.com/revive

TargamaT team
France
Local time: 21:28
Native speaker of: Native in ArabicArabic, Native in FrenchFrench
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2 hrs   confidence: Answerer confidence 5/5
use it to make live virus


Explanation:

rescue it into live virus – use it to make live virus

Smallpox virus is almost extinct. Stocks of it are held only by the Americans and the Russians. This would be a good project for terrorists or totalitarian governments looking for an alternative to making nuclear weapons. In theory, it is remarkably easy. First, they synthesise a small amount of the smallpox virus DNA chemically. Then, they infect cells with another poxvirus and shortly afterwards transfect the synthetic smallpox virus DNA into the infected cells. As the infection proceeds, the poxvirus replicates its own DNA and makes new virus particles as usual. This DNA is packaged into the particles to complete the replication process. However, at the same time, the synthetic smallpox virus DNA is also recognised by the genetic system of the other poxvirus. So the synthetic smallpox virus DNA is also replicated and smallpox virus particles are made, based on the synthetic smallpox virus DNA, but using the genetic mechanisms of the other poxvirus. The newly made smallpox virus DNA is packaged into the newly made smallpox virus particles, which results in live, that is infectious, smallpox virus.

Here is an introduction to the problem:

http://news.bbc.co.uk/2/hi/2122619.stm

Here is an article about it:

http://www.plospathogens.org/article/info:doi/10.1371/journa...

And here is how to do it:

http://jvi.asm.org/cgi/content/full/77/13/7281


Peter Nicholson (X)
Poland
Local time: 21:28
Native speaker of: English
PRO pts in category: 24
Grading comment
thanks a lot to all of you, and especially to Mr. Nicholson!
Login to enter a peer comment (or grade)

3 hrs   confidence: Answerer confidence 3/5Answerer confidence 3/5
the 'recovery' of live virus through... systhesis of viral genome


Explanation:
I hope this is the right context :-)

The first starting point is that certain kinds of biological engineering, including making pathogens drug resistant, and recovering live viruses from transfected recombinant DNA, are technically feasible and have been so for a very long time. The recovery of polio virus from cDNA was accomplished by Baltimore and coworkers in 1982.


Example sentence(s):
  • chemically synthetise the variola virus genome and engineer live virus
  • Recovery of infectious classical swine fever virus (CSFV) from full-length genomic cDNA clones by a swine kidney cell line expressing bacteriophage T7 RNA polymerase

    Reference: http://lifeboat.com/ex/great.power.great.responsibility
    Reference: http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6T...
Carolyn Gille
Local time: 21:28
Native speaker of: English
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22 hrs   confidence: Answerer confidence 3/5Answerer confidence 3/5
ensure replication / facilitate generation


Explanation:
I believe that virus rescue is slightly more than introduction or recovery; it is a process whereas virus replication/generation is facilitated. A few examples for the use of the term in context:

"... to ensure that the generated recombinant viruses were able to replicate. (...) system can be used for the generation of high yields of influenza B virus"
http://www.pnas.org/content/99/17/11411.full

"This plasmid-based reverse genetics technique facilitates the generation of recombinant influenza viruses containing specific mutations in their genes."
http://www.ncbi.nlm.nih.gov/pubmed/10516084

"... we use a plasmid–only rescue system that allows the rapid generation of high–yield recombinant vaccine strains."
http://rstb.royalsocietypublishing.org/content/356/1416/1965...

Ildiko Santana
United States
Local time: 12:28
Works in field
Native speaker of: Native in HungarianHungarian, Native in EnglishEnglish
PRO pts in category: 4
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