Professor Eduardo Olavarria, from Imperial College London, said: "While it is too premature to say with certainty that our patient is now cured of HIV, he is clearly in a long-term remission".
Since the Berlin patient, "cure" and not just treatment has become a topic in HIV research, said Hütter: "This new case supports the idea to seek an HIV cure".
So could stem cell transplants lead to cures for some of our most vexing diseases?
"We can try to tease out which part of the transplant might have made a difference here, and allowed this man to stop his anti-viral drugs".
Adalja noted that although the Berlin patient and the London patient received similar treatments, the Berlin patient's treatment was more intense - he received two bone-marrow transplants in addition to whole-body irradiation (radiation exposure to the whole body).
His case was published in Nature journal yesterday, and simultaneously announced by University College London researchers at the annual Conference on Retroviruses and Opportunistic Infections in Seattle. The donor had this double copy of the mutation.
Kylie Jenner has been confirmed as the world's youngest ever self-made billionaire
They also put her on one of the most popular reality television shows in the country - where she's starred for the past decade. At 21, Kylie Jenner has been named the youngest-ever, self-made billionaire by Forbes magazine.
"Simple act of kindness" leads to South Carolinan winning $1.5 billion jackpot
He or she will remain anonymous, a right afforded to the victor by state law. "Good for him, good for me", the store's owner, C.J. They even mentioned that they let another customer go ahead of them in line to buy a Mega Millions ticket before them.
Soktratis: Arsenal's spirit and belief crucial in battle for top 4
Spurs went behind after 16 minutes but managed to break down a tight Arsenal defence to earn the point. But I feel fine, I have come through the games and the ankle feels good which is the main thing".
For this reason, he's often described as being the first patient "cured" of HIV, although technically that's incorrect, since remission and cures are not the same thing (as sometimes remissions are not complete, if the viral load stages a resurgence). As a result, the man ended up with an immune system that was naturally resistant to HIV. Bone marrow from a CCR5 negative donor was also given to the "London Patient". That patient had a leukemia that could be treated with a blood stem-cell transplant, and his transplant team used cells that carried a mutation that eliminates one of the proteins that HIV uses to attach to cells.
"If we can understand better why the procedure works in some patients and not others, we will be closer to our ultimate goal of curing HIV", said Cooke, who was not involved in the case study. But HIV drugs have become so effective that many people carrying this infection have a normal lifespan if they take these medications for a lifetime.
"HIV Is Cured In 2nd Patient, Doctors Report".
To test whether he was truly in HIV-1 remission, the London patient disrupted his usual antiretroviral therapy.
With the right kind of donor, his doctors figured, the London patient might get a bonus beyond treating his cancer: a possible HIV cure. So, pre-screening the HIV population would appear to be critical to identifying the patients that this can help.
The researchers caution that the approach is not appropriate as a standard HIV treatment due to the toxicity of chemotherapy, but it offers hope for new treatment strategies that might eliminate HIV altogether. The man suffered from post-procedure complications whereby the donor's immune cells attacked his own.
Unfortunately, stem cell transplants are not only expensive, but unsafe. There are now 37 million people infected with HIV, 21 million are on antiretroviral treatment, but drug-resistant strains are becoming more widespread.