Archive : Spring 2006


HOW FOUR DOCTORS SPENT THE LAST QUARTER-CENTURY:
Watching, terrified, as a trickle of patients became a flood // Battling, bravely, against activist outrage and social stigmas // Searching, without pause, for answers // Advancing, inexorably,  toward a cure.

25 Years of AIDS [page 4]





BRUCE WALKER //

1981: Intern, the Massachusetts General Hospital

2006: Professor of Medicine at Harvard Medical School and Director of the Partners AIDS Research Center at the Massachusetts General Hospital

My first encounter with AIDS came in 1981. A patient arrived at the emergency room with three simultaneous life-threatening diseases, something none of us had ever seen. As an intern, this was an eerie, memorable moment, the first time the people I considered the smartest in the world—the physicians training us—were stumped too. Similar cases followed, and we realized we were seeing something entirely new. I wanted a career in which I could use my skills as both a researcher and a physician, so I chose infectious disease as my specialty and focused on AIDS.

Mass General was early to set up a dedicated clinic for AIDS, which made the hospital a very fertile place to study the disease. You could apply what you saw in patients to basic research in the lab. Our patients have taught us a great deal about how the body fights back against AIDS.


In 1994 a man came to the Mass General outpatient clinic. He told me he was a hemophiliac who had been infected with HIV more than a decade earlier. “But I’ve never had any symptoms, never been treated with AIDS medicines, and I feel great,” he said. “Am I still going to die?”

We could document that he had been infected but found no virus in his bloodstream. We began to try to understand how this man and a small number of others, now known as “elite controllers,” were achieving this remarkable outcome. They might hold the secret to how the body’s immune defenses keep HIV in check. That would be almost as good as a vaccine.

Part of the answer seems to be that elite controllers produce a very large number of cells—known as T-helper cells—that allow the body to recognize and attack HIV. We are now conducting clinical trials in which we try to boost this response in patients already infected with the virus. And we will soon begin seeking additional answers in elite controllers’ genetic makeup that allow such incredible success against the virus.

My experiences have convinced me that great advances in biomedicine come when you link research to clinical care. This is a lesson we’re taking to the heart of the AIDS epidemic in sub-Saharan Africa, where almost no basic research has taken place. In 2003 we opened a research and care facility in Durban, South Africa, with the Nelson Mandela School of Medicine, where we are trying to understand the viruses fueling the African epidemic and helping to create improved treatment programs. In another program, residents can work at a hospital in rural South Africa. It is a global epidemic, and it is exciting to be involved where the need is so great. After 25 years, AIDS still takes a terrible toll, but I have to believe that this is a solvable problem.

  Dossier

1.In Their Own Words: NIH Researchers Recall the Early Years of AIDS” (http://aidshistory.nih.gov). An online trove of oral histories, original documents and time lines, recounting the efforts of NIH physicians, scientists and officials to confront the AIDS crisis.

2. Virus Hunting: AIDS, Cancer, and the Human Retrovirus: A Story of Scientific Discovery, by Robert C. Gallo [Basic Books, 1993]. No scientist was more enmeshed in the politics of AIDS research than Gallo, who here answers his critics in an exhaustive—though often slow-going—account.

3. Shots in the Dark: The Wayward Search for an AIDS Vaccine, by Jon Cohen [W.W. Norton, 2001]. A perceptive critique of the bureaucratic wrangling, marketplace failures and personal rivalries that have held back development of an AIDS vaccine.



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From top: Photo by Jeffrey Markowitz/Corbis; Photo by Sue Owrutsky
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