Gene Therapy May Thwart HIV 171
sciencehabit writes "Over the past few years, a man living in Berlin, Timothy Brown, has become world famous as the first — and thus far only — person to apparently have been cured of his HIV infection. Brown's HIV disappeared after he developed leukemia and doctors gave him repeated blood transfusions from a donor who harbored a mutated version of a receptor the virus uses to enter cells. Now, researchers report promising results from two small gene-therapy studies that mimic this strategy, hinting that the field may be moving closer to a cure that works for the masses."
Man if it cures HIV (Score:3, Funny)
Then you know what it will do? Put thousands of people out of work!
Think of the Pharmacists!
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Time for Captain Obvious (Score:3)
I'll trade in the pharmacists for unfettered, unprotected sex for all. A world without STDs would be an awesome world, indeed. Seinfeld's dream of an intercourse hello would be realized.
Um. HIV is one that gives people the chills today but there are other STD's. Some, like genital herpes are highly contageous and incurable. Hepatitis C is less contageous but also incurable and potentially lethal. There are even antibiotic resistance forms of gonorrhea.
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So yeah, no thoughtless condomless sex for anyone, but yeah, lets cure this thing. Its a danger to everyone.
Unfortunately there's plenty of that right now for many people - it just has consequences.
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Genital herpes is a non issue for the most part
Uh what? Because it doesn't kill you - just makes you wish you were dead.... fuck that! If I had a choice between syphillis or herpes (and no other choice) - I'd take syphillis. That I can get treated - and I could be honest about having it, use protection, and still get laid. You do not want to fuck with someone who would fuck you, if you had herpes.
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A disease is ONLY a non-issue when it is eradicated completely.
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If we cannot develop an affordable HIV vaccine/tre
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Sorry I don;t have a citation (I'm sure Google does) but a study was recently stopped because the results were obvious early and were life-savers. If they catch it early and treat it aggressively, HIV is nearly impossible to transmit -- after two years in the four year study, many patients using the old treatments' partners caught HIV, but not a single one of the ones treated early and aggressively had a partner who caught it.
I don't remember how large the study was, but the researchers seemed pretty excite
No way! (Score:2)
Hold it right there!
As if HIV was the only STD and the others weren't dangerous or troublesome. Even today, HIV is the least of my concern. There is also HepB/C, HPV, Herpes, Syphilis... And unlike HIV, the infections usually come and go and you never know if you're still transmitting or if it'll get worse and cause cancer after a few decades (Hepatitis and HPV, specifically) either to you or your loved one.
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Anyone who takes a Seinfeld reference seriously needs to be shot. Actually, let's just shoot Seinfeld.
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Syphilis? Come on man, this isn't the 19th century. You get syphilis you realize it and see a doctor. Some antibiotics later and you are cured. How can you compare that to HIV? Herpes would suck but it's common and controllable.. It doesn't result in slowly wasting away taking 100s of pills a day as you are treated like some sort of leper who is already dead. HPV I believe is already covered by a recent vaccine and hepatitis would suck but you can get it in other ways then sex anyway. HIV is the winner for
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Syphilis = kinda agreed
Herpes = it's annoying as fuck but agreed
HPV = vaccine is only for two types and they are not the ones that cause cancer... the other non-genital types? I don't care about 'em.
HIV = kinda biased, the country where I live in (Brazil) gives away the medication since they broke the patents and chug away low cost pills without paying royalties
I don't know, but it's my opinion that a bomb ticking that you never know if/when it'll hit and take you or someone you love is much worse than some
Re:No way! (Score:4, Informative)
Uh, the HPV vaccine IS for the types of HPV that cause cancer. That's the entire point of the vaccination program. It is not a cure for all possible types of cervical cancer (only ~60% of them) but the HPV strains it vaccinates against are those linked to cancer + some other common ones (to encourage men to get the vaccine too and thus promote herd immunity).
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Actually, you could probably argue that there's a certain amount of de-facto herd immunity in places with antibiotic abuse, simply because people who get infected by syphilis are likely to come down with a sore throat or upper respiratory infection, and head home with a prescription for some powerful broad-spectrum antibiotic likely to blow the syphilis away with trivial ease long before they ever realized they HAD syphilis. Apparently, syphilis is pretty easy to cure, and even penicillin is good enough to
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It's also a great way to breed resistant strains of syphilis (and other bacteria).
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Not really. To breed resistant strains of anything you need to have survivors. For example, the big problem with antibiotic resistant tuberculosis is people being non-compliant with their antibiotic regimes. So they get it, take the course for a few weeks or so and feel better, and then decide to stop taking the pills or start being lazy about keeping up to the schedule (which is 6-24 months).
As a result, they haven't actually cleared the entire infection, instead they've neatly selected for the slightly mo
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That must be why Africa has so few problems with overpopulation oh wai---
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It's cities also have big problems with family planning and their growth rates.
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We had that in the '70s. It was awesome!
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The first sexual revolution? (Score:2)
The 60s had nothing on the 20s; and the last decade looks uptight and repressive compared to the 50s.
As counter to modern culture as it may seem, it was well understood how much fun sex was a very long time ago.
In terms of monetizing sex, well that is quite the revolution.....
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Google delta CCR5. This is old. (Score:5, Informative)
The delta CCR5 mutation was already well known, and the subject of several (at least 4) different experimental receptor blocking and gene therapy medications, all of which were blocked by the FDA citing safety concerns.
This is not meant to be a conspiracy theorist bottom feeding post, but simply intended to inform. There have been many studies of this mutation for thereputic uses conducted in Europe over the past decade, including seeveral promising phase 2 trials.
Like most life saving medications though, any prospective cure for HIV will probably be developed in the US, and approved in Europe. (Then approved in the US after decades of routine use overseas.)
While this particular gene therapy might be new, the mechanism is not novel.
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I might point out that FDA rejection of thalidomide saved thousands of children from being born as flipper babies.
There have been strong calls for informed participation in clinical trials, especially for terminally ill patients. The FDA has been very responsive as far as I am aware.
I suggest not operating on rumor or whatever Fox News is peddling and check the facts for yourself. It isn't difficult.
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So, it looks like the risk/reward relationship is slightly different in both cases, doesn't it...
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But, at the end of the day, the methodology for demonstrating the effectiveness of the therapies is the same.
This reminds of all that BS about multiple sclerosis vein theory, and all the M.S. lobby groups demanding governments pay for it and fast-track the research, despite the fact that dozens of researchers who were experts in M.S. were more than a little dubious and insisted that any potential therapy needs to be adequately tested. And now a bunch of quacks in Latin American countries offer it and lo an
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Before you go on about how noble the FDA is about saving lives, I suggest
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Furthermore, if you want to blame high drug prices in the US on anything, this is the problem right here - the gross majority of employees in any big pharma company are responsible for some FDA requirement. On the upside, they do create a ton of jobs.
Glass making is a far better job than filling out paper work. Also is far more exciting smashing the windows in the first place.
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So why can't I get the replacement disk?
You haven't heard of medical tourism?
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Like most life saving medications though, any prospective cure for HIV will probably be developed in the US, and approved in Europe. (Then approved in the US after decades of routine use overseas.)
So, HIV is likely to be wiped out in Africa before the US?
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Sounds like decades of free human testing to me...
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What I am getting at, is that this mechanism has been the subject of clinical trial medications in the past, and refused acceptance every time.
While the delta CCR5 mutation appears benign in humans under most circumstances, the burden of proving such benality imposed by the FDA will likely be insurmountable, and as such, even if this stuff kills off HIV infection in 24 hours of application, it will probably never get approval in the US.
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Which is reasonable. HIV isn't exactly something that is typically spread without some participation on the part of the person contracting the virus. Sure some people genuinely do get it via rape, but the numbers aren't a significant portion of the population.
Messing around with genes is risky business and at this point HIV is similar in danger to diabetes. But, it's also easily preventable and mainly spreads because people are too ignorant and lazy to protect themselves.
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Many people who contract HIV are neither stupid nor ignorant, but they are unfortunate enough to live in a country where protection is not available or is socially stigmatized (often due to religions imported from the western world) and are having promiscuous sex or sex with promiscuous people.
FTFY. Ok, yeah, people can be born with it (which sucks) or get it through rape or blood transfusions... but simply, you know, restraining yourself and not acting like a rabbit generally makes you invulnerable to, oh, every STD ever. God forbid we should oppose people's right to have as much sex as they want with whomever they want, though. I would argue that having promiscuous sex counts as "stupid" when you can't or don't use protection (or possibly know you partner is clean).
For that matter, HIV is su
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Many people who contract HIV are neither stupid nor ignorant, but they are unfortunate enough to live in a country where protection is not available or is socially stigmatized (often due to religions imported from the western world) and are having promiscuous sex or sex with promiscuous people.
FTFY. Ok, yeah, people can be born with it (which sucks) or get it through rape or blood transfusions... but simply, you know, restraining yourself and not acting like a rabbit generally makes you invulnerable to, oh, every STD ever. God forbid we should oppose people's right to have as much sex as they want with whomever they want, though. I would argue that having promiscuous sex counts as "stupid" when you can't or don't use protection (or possibly know you partner is clean).
For that matter, HIV is supposed to have originated from monkeys. Yeah, I'll let your mind imagine how an STD migrated from a monkey to a human...
Do think bringing GOD into this makes your opinions any less repugnant (or wrong).
If GOD created man in his image how come you lumber around the planet?
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Thalidomide [wikipedia.org]
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In the cases of receptor blocking medications, there were sticky issues involving elevated liver enzymes, iirc. This caused the fda to reject. (Essentially the blockers are large protiens that bind to the receptor and plug it up like a cork, so the virus cannot dock. The body has to break down these foreign bodies in the liver to eliminate them, which causes elevated liver enzymes. A condition known to induce liver failure. Yes, several distinct medications were blocked by this decision.)
The gene therapy tr
The masses? (Score:1)
Um, I don't think this is going to work for the masses, even if we can now do DNA sequencing for about 1/10th what it cost just two years ago, and we have protein folding solutions for HIV thanks to the work of the UW's Baker Lab and all you great volunteers.
Look, the vast and overwhelming quantity of infections are in areas where not only are people very very poor (no, poorer than that, think a couple hundred dollars a year for a family), but they have 2-3 other major infectious diseases to cope with.
This
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Re:The masses? (polio) (Score:1)
Polio is back, actually, thanks to anti-immunization Saudi policies.
I'm not saying it's not a good idea, but it is unlikely to provide solutions for the majority of our planet's infected and at-risk populations.
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The diseases that catch the imagination aren't necessarily the bad ones. Breast cancer gets considerably more funding and attention than is justified when compared with the mortality rate and ability to treat it.
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That's because we really love boobies!
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Besides which, having personally known two people to have suffered from and survived breast cancer (including a girlfriend at the time) I personally have no problem with focussing on it, especially as it in no way precludes others from focussing on other conditions.
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And what was the mortality rate from breast cancer fifty years ago?
Just wait (Score:1)
If this works, five bucks says within a decade there are hoards of twats screaming about all the 'hidden dangers' of the treatment that mainstream science doesn't want you to know and about how AIDS never killed anyone in the first place and claiming it was dropping before the cure. This will happen, especially if it involves gene therapy.
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You're completely forgetting the religious aspect. Only fornicators destined for hell are going to get AIDS. Clearly we need to bomb the free clinic.
Also, it causes autism.
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But ironically autism makes it harder to get HIV.
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I assume you mean that the social awkwardness makes it harder to get laid. I actually once told a doctor that that was my "birth control plan". I suppose anti-STD plan too. (and if I do get lucky, condoms)
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Don't worry. The procedure requires them to apply the gene therapy to stem cells before the transfusion. That will keep it illegal in the U.S. for at least 50 years.
umbilical cord blood is a life!
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Science wins again. (Score:1)
It's posts like that this that make me really smile. Science -- the faithful and playful (but expensive) dog often blamed for farting during dinner even when it was one of the diners -- is responsible for directly raising someone's... and hopefully a lot more people's, over time... quality of life.
I know what's going to happen, though. Some religious person/group will end up trying to take credit. People will say, "God cured him of his HIV"... well, no, the Delta CCR5 mutation cured him. Modern science cure
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Jesus! It's not that I don't agree with you more or less, but why don't you and science get a room?
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Science has good taste in men, unfortunately... believe me. I've been barking up that tree for ages. ...
I'll be in my bunk.
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AHEM. It's not a BASEMENT, it's a DUNGEON.
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It's a COMMAND CENTER!
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But if I move into the basement mom won't make me pancakes anymore.
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The vast majority of humans _are_ atheists (see my .sig), and as far as I'm concerned, if you're over 18 and you believe in a god, you _are_ a nutter.
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God used to do everything. God made the sun rise. God made the rain fall. God made the earthquakes come, and storms, and famine and plenty. God send health and disease. God made life. God made everything.
Then science came along. Science poked around, and determined that there was no God making the sun rise - mere an illusion created by a rotating planet. Science figured out the water cycle, and plate tectonics, and ecology. Science discovered that disease is caused by micr
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That's how religious fundies see it anyways. To them, once science can explain something it means God didn't do it, which is pretty funny considering they consider themselves the most hardcore believers, yet their belief seems to be the most fragile.
Small catch (Score:2)
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The transplant treatment itself, given only to late-stage cancer patients, kills up to 30% of patients.
Good for them if they have such a low mortality. I still don't see it being used regularly with that mortality rate. You are going to kill 1/3 of your patients?
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No, the treatment they are working on is gene therapy, not the transplant that seems to have cured the man. They are related, but not the same.
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"The survival rate of a bone marrow transplant is around 40% even in the best hospitals in the world."
The survival rate for people dying of nasty forms of leukemia who get a bone marrow transplant from an unrelated donor when they're already on death's door might be about 40%, but the procedure itself isn't nearly that dangerous. Autologous hematopoietic stem cell transplant has a mortality rate around 5% on average, and groups who specialize in it are getting quite a bit better than that. Presumably that
Majic Johnson? (Score:3)
But HIV just cured leukemia, which is better? (Score:2)
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Just let them fight and bet on the winner.
Using HIV to cure leukemia (Score:2)
And leukemia to cure HIV.
(Yeah, that's actually completely wrong because the HIV was cured as a side-effect of the treatment against leukemia. Still, nicely circular.)
So... (Score:2)
So the cure for leukaemia is HIV, and the cure for HIV is leukaemia?
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Well, it worked for Mr. Burns [wikia.com].
Obligitory Bill Hicks quote (Score:2)
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Umm, on the incurable front there's still Hepatitis C, HPV (thanks to Michele Bachmann), and good ol' Herpes to worry about.
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Coming soon (Score:2)
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Most Americans can afford those now.
I get the point - do you?
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The difference is, with this, all someone has to do is patent the gene and then they can charge whatever they want.
At least with spaceships and computers, you actually have to create something.
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Software patents?
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Nobody ever expected computers to be affordable to the masses either.
And they're not affordable "to" the masses either. When the majority (masses) can afford computers you will still be a dick.
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Well shit, I guess I still have malaria.
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Your conspiracy theorist is showing.
There are numerous disorders and diseases that can be cured today which could not be even 200 years ago... admittedly, no treatment has 100% success though, nor can it.
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So when's the last time you saw someone with polio or smallpox?
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Treatments for such curable conditions are readily available in North America, so the notion
Brain-dead. (Score:3)
Doctors do not cure. Not in America. They treat. They can't make a money off of you for as long as you live if they cure you. If they treat you, they can milk you until you die.
Why does something so stupid always modded up to "Insightful?"
The cure means that your patients have a real shot at rebuilding their lives and finances. It means that they will be a candidate for other medical services for perhaps the next half century or more.
The cure opens the door to the understanding and treatment of other diseases.
The cure is elusive. The cure may have side effects. The cure may dangerous. The surgical procedure that a weakened patient may not survive.
The geek doesn't want medici
Don't forget the other great thing about a cure (Score:2)
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The geek doesn't want medicine.
Please don't confuse these nutball conspiracy theorists with geeks.
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Pretty sure GP meant physician.
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Re:A cure already exists: (Score:5, Insightful)
Or are a victim of a sexual assault. Or suffer a needlestick injury as a doctor treating someone with HIV (or have incidental blood-blood contact through say broken skin). Or if your partner of 10 years cheats on you. Or if the condom fails.
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Heh, you just illustrated how major religions were invented:
1. I can't get laid, and I hate others getting all the fun.
2. Invent and spread abstinence doctrine based on fear of the unkown.
3. ???
4. Profit!!!
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Based on this theory, step 4 must be:
4. Diddle alter boys.