CRISPR eliminates HIV-1 infection in live animals
251–260 of 267 posts
Re: CRISPR eliminates HIV-1 infection in live animals
#252Earlier quoted context omitted.
"More practically, HIV has such a high mutation rate, that it's likely very difficult to target every HIV sequence with a sequence-specific Cas9 therapy. If the Cas9 guide sequence is too generic it'll take out stuff besides HIV (stuff you need). " Unless I'm grossly misunderstanding how CRISPR works, there's no conceptual reason why you couldn't target multiple sequences at the same time , with a cocktail method. Th…
I think ∼3E−5 per base per replication. Might be a more useful number [1]. If you use 10mers, that only gives you 1048576. I'd be almost certain that >90% of those sequences also exist in the human genome. So your target isn't specific enough (take out stuff you need as the parent suggested). So you need to use a longer sequence, perhaps 25bp. Maybe there's a stable region or set of regions you can target (in which c…
Hmm... I would bet that there is a cocktail of sequences such that if they are not conserved, the virus effectively becomes no longer HIV (no longer infectious, no longer capable of producing symptoms...).
HIV is obviously not a human being, right? Find every sequence where it differs, target them all. :-)
Re: CRISPR eliminates HIV-1 infection in live animals
#253Earlier quoted context omitted.
What your comment (and followup) shows is that you think some other people's behaviour makes them deserve HIV. That's an utterly intolerable position, and especially so in this community. Nobody deserves HIV.
What about the degenerate subculture of "bug chasers"? Aren't they literally asking for it?
Re: CRISPR eliminates HIV-1 infection in live animals
#254Re: CRISPR eliminates HIV-1 infection in live animals
#255Re: CRISPR eliminates HIV-1 infection in live animals
#256Re: CRISPR eliminates HIV-1 infection in live animals
#257Re: CRISPR eliminates HIV-1 infection in live animals
#258Earlier quoted context omitted.
> You can spend hundreds of millions of dollars before you even get to the point where you can ask the FDA if you can start human trials. What's a rough breakdown of costs? Salaries certainly don't seem to be the dominant factor. Is it lab equipment & facilities?
I'm not a chemist, but here's how I understand it to work. It's all trial and error. You start with some model about how your target disease works. Perhaps, for the sake of argument, your model is that disease Q is caused by a deficit of protein N. Protein N is broken down by enzyme F, so obviously if you found a drug that suppressed enzyme F, you could cure disease Q. Now all you have to do is try every chemical you…
Re: CRISPR eliminates HIV-1 infection in live animals
#259Earlier quoted context omitted.
Seems XKCD was on point this week: https://www.xkcd.com/1831/
To be fair, a lot of breakthroughs happen by people outside the field in question applying new ways of thinking to that field. Sure, these people can be kind of annoying, but I think we lose more than we gain by discouraging cross-pollination between fields of science.
Re: CRISPR eliminates HIV-1 infection in live animals
#260Earlier quoted context omitted.
Seems XKCD was on point this week: https://www.xkcd.com/1831/
To be fair, a lot of breakthroughs happen by people outside the field in question applying new ways of thinking to that field. Sure, these people can be kind of annoying, but I think we lose more than we gain by discouraging cross-pollination between fields of science.