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Cure for HIV found (for one guy at least)!
sluts rejoice! 
Dude had HIV, got serious leukemia, and during his intensive treatment for his leukemia, his HIV was cured... 
fairly interesting: Though it seems like this guy who was cured was a bit of a lucky or particular case, obviously brings a fair bit of hope for the future!
| quote: | Approximately 1 percent of Caucasians in northern and western Europe have a special mutation that virtually prevents them from being infected with the HIV virus. The mutation, dubbed CCR5 delta 32 homozygosity, causes individuals to lack the CCR5 receptor, which the HIV lentivirus uses to accomplish its infection process.
Physicians treating Mr. Brown's cancer purposefully selected a donor who happened to have this beneficial mutation.
Hopes of a cure seemed faint, though. After all, if the HIV infection in Mr. Brown's former CD4 (T-cell) population had advanced enough, it would have developed the ability to infect using the CXCR4 receptor, rendering the protective mutation useless. And even if the virus had not armed itself with this new ability, no one had ever been cured of the disease.
While Mr. Brown may have been unfortunate by and large medically, he apparently lucked out when it came to his HIV infection.
Taken abruptly off antiretroviral drugs after the transplant, he showed no signs of HIV infection. For the next 38 months he underwent immunosuppressive treatment to protect the graft as it repopulated his intestinal mucosa.
Tissue samples taken during this time period showed spiking levels of the donor T-cells and no trace of infection. Weaning off immunosuppressants, the man's T-cell levels dropped to that of a healthy adult male.
Medical researchers concluded that it was unlikely that the man still had HIV -- after all if he had the disease, it would have likely evolved the CXCR4 infection ability and infected his immunotransplant.
Further evidence the disease was gone was shown by dropping levels of his body's HIV antibodies. And viral load testing (RNA) and tests for viral DNA within cells -- two tests that typically reveal the presence of HIV -- came back negative
Mr. Brown's ordeal was chronicled in the German magazine Stern.
The results have also been published in an article in the peer-reviewed journal Blood and a study [PDF] in The New England Journal of Medicine.
As the magazine notes, past attempts to graft "immune" T-cells failed, due to the long lifespans of the victim's infected T-cells. Those long lifespans bought the virus enough time to mutate and overcome the graft's immunity. But in Mr. Brown's case, the chemotherapy killed enough of the infected cells that the mutation was not able to occur.
While the treatment regiment is extremely dangerous, chemotherapy -- long aimed at curing cancer -- may soon be used to cure HIV.
The key remaining obstacle is to develop ways to create CCR5 deficient T-cells.
Mr. Brown was fortunate in that a donor was found who happened to have this mutation. Most won't be that lucky. But researchers are hoping to create stem cells from the patient's various cell lines, differentiate them into T-cells, and finally using gene therapy to knock out the CCR5 receptor DNA.
The resulting treatment may not be correct for everybody. HIV is largely repressible with today's advanced drug regimens. Some may decline to risk their lives to be pronounced "cured".
For those who may someday opt for this route, the resulting treatment will likely be very expensive. Thus South Park's irreverent recent episode "Tonsil Trouble", which depicted NBA-great Magic Johnson being "cured" of HIV via a money transfusion may prove somewhat prophetic.
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SOURCE
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