Robert Charles Gallo (born March 23, 1937) is a
U.S. biomedical researcher. He is best known for his co-discovery
of the Human Immunodeficiency Virus (
HIV), the
infectious agent responsible for the
Acquired Immune Deficiency Syndrome (
AIDS), and
he has been a major contributor to subsequent HIV research.
Gallo is
the director of the Institute of Human Virology at the University of Maryland
School of Medicine in Baltimore, Maryland
. He and two longtime scientific
collaborators,
Robert R. Redfield and
William A. Blattner, co-founded the institute in
1996 in a partnership including the State of Maryland and the City
of Baltimore. In 2005, Gallo co-founded Profectus BioSciences,
Inc., which develops and commercializes technologies to reduce the
morbidity and mortality caused by human viral diseases, including
HIV.
Gallo was
born in Waterbury,
Connecticut
to a working-class family of Italian
immigrants. He earned a BS degree in Biology in 1959 from Providence College
and received an MD from Jefferson
Medical College
in Philadelphia, Pennsylvania
in 1963. After completing his medical residency at the University of
Chicago
, he became a researcher at the National Cancer Institute.
Gallo states that his choice of profession was influenced by the
early death of his sister from
leukemia, a
disease to which he initially dedicated much of his research.
Retrovirus work

Robert C.
Gallo (in the early eighties)
After listening to a talk by biologist
David Baltimore, Gallo became interested in
the study of
retroviruses, and made their
study the primary activity of his lab. In 1976, Doris Morgan, a
researcher in Gallo's lab, was successful in growing
T lymphocytes. Frank Ruscetti, Gallo, and
Morgan coauthored a paper in
Science describing their method.
Morgan and Ruscetti eventually identified the activity of a new
T-cell growth factor, later isolated and identified as
IL-2 (interleukin-2) by a lab led by Kendall A. Smith.
These breakthroughs allowed researchers to grow T-cells and study
the viruses that affect them, such as human T-cell leukemia virus,
or
HTLV, the first retrovirus identified in
humans, which Bernard Poiesz and Ruscetti isolated in Gallo's lab.
HTLV's role in leukemia was clarified when a group of Japanese
researchers, puzzling over an outbreak of a rare form of the
disease, independently isolated the same retrovirus and showed it
was the cause. In 1982, Gallo received the prestigious
Lasker Award: “For his pioneering studies that
led to the discovery of the first human RNA tumor virus and its
association with certain leukemias and lymphomas.”
HIV/AIDS research and subsequent controversy
On May 4, 1984, Gallo and his collaborators published a series of
four papers in the scientific journal
Science demonstrating that a
retrovirus they had isolated, called HTLV-III in the belief that
the virus was related to the leukemia viruses of Gallo's earlier
work, was the cause of AIDS.
A French team at the Pasteur
Institute
in Paris, France
, led by Luc
Montagnier, had published a paper in Science in 1983,
describing a retrovirus they called LAV (lymphadenopathy associated
virus), isolated from a patient at risk for AIDS.
Gallo was awarded his second Lasker Award in 1986 for "determining
that the retrovirus now known as HIV-1 is the cause of Acquired
Immune Deficiency Syndrome (AIDS).” He is the only recipient of two
Lasker Awards.
Since then, there has been considerable and sometimes acrimonious
controversy over
the priority for the discovery of HIV, including accusations
(which were later dropped) that Gallo's lab misappropriated a
sample of HIV produced at the Institut Pasteur.
In November 1990, the
United States
Office of Research Integrity at the National
Institutes of Health
commissioned a group at Hoffmann–La Roche to analyze
archival samples established at the Pasteur Institute and the
Laboratory of Tumor Cell Biology (LTCB) of the National Cancer
Institute between 1983 and 1985. The group, led by
Sheng-Yung Chang, examined archival specimens and concluded in
Nature in 1993 that
Gallo's virus had come from Montagnier's lab. Chang determined that
the French group's LAV was a virus from one patient that had
contaminated a culture from another. On request, Montagnier's group
had sent a sample of this culture to Gallo, not knowing it
contained two viruses. It then contaminated the pooled culture on
which Gallo was working.
Today it is agreed that Montagnier's group first isolated HIV, but
Gallo's group is credited with demonstrating that the virus causes
AIDS and generating much of the science that made the discovery
possible, including a technique previously developed by Gallo's lab
for growing
T cells in the laboratory. When
Montagnier's group first published their discovery, they said HIV's
role in causing AIDS "remains to be determined."
The question of whether the true discoverers of the virus were
Frenchor from the US was more than a matter of prestige. A US
government patent for the AIDS test, filed by the
United
States Department of Health and Human Services and based on
what was claimed to be Gallo's identification of the virus, was at
stake. In 1987, both governments attempted to end the dispute by
arranging to split the prestige of discovery and the proceeds from
the patent 50-50, naming Montagnier and Gallo co-discoverers. The
compromise allowed Montagnier and Gallo to end their feud and
collaborate with each other again for a chronology that appeared in
Nature that year.
The
Chicago Tribune published an investigative report by
reporter John Crewdson in 1990 which questioned whether Gallo's
laboratory had taken the virus from Montagnier, which led to
National
Institutes of Health
(NIH) and Congressional investigations that
ultimately cleared Gallo's group from any wrongdoing. In
1994, when further investigations revealed that there was no
evidence that Gallo had invented the AIDS test and that the
Institut Pasteur had applied for a patent for its own test months
before Gallo, the NIH agreed to award a greater share of the patent
royalties to the Institut Pasteur.
In the November 29, 2002 issue of
Science, Gallo and
Montagnier published a series of articles, one of which was
co-written by both scientists, in which they acknowledged the
pivotal roles that each had played in the discovery of HIV.
In 1995, Gallo published his discovery that
chemokines, a class of naturally occurring
compounds, can block HIV and halt the progression of AIDS. This was
heralded by
Science magazine as one of the top scientific
breakthroughs within the same year of his publication. The role
chemokines play in controlling the progression of HIV infection has
influenced thinking on how AIDS works against the human immune
system and led to a class of drugs used to treat HIV, the
chemokine antagonists or
entry inhibitors.
Gallo's team at the
Institute of Human Virology
maintain an ongoing program of scientific research and clinical
care and treatment for people living with HIV/AIDS, treating more
than 4,000 patients in Baltimore and 200,000 patients at
institute-supported clinics in Africa and the Caribbean. In July
2007, Gallo and his team were awarded a $15 million grant from the
Bill and Melinda Gates
Foundation for research into a preventive vaccine for
HIV/AIDS.
In 2008, Montagnier and his colleague
Francoise Barre-Sinoussi from the
Institut Pasteur were awarded the
Nobel Prize in Physiology
or Medicine for their work on the discovery of HIV.
Harald zur Hausen also shared the Prize
for his discovery that
human
papilloma viruses lead to
cervical
cancer, but Gallo was left out. Gallo said that it was "a
disappointment" that he was not named a co-recipient. Montagnier
said he was "surprised" Gallo was not recognized by the Nobel
Committee: "It was important to prove that HIV was the cause of
AIDS, and Gallo had a very important role in that. I'm very sorry
for Robert Gallo."
See also
References
- Profectus Biosciences, Inc
-
http://www.sciencemag.org/cgi/content/abstract/193/4257/1007
- Kendall A. Smith, "Interleukin-2: inception, impact, and
implications." Science. 1988 May 27;240(4856):1169-76.
-
http://www.nature.com/nature/journal/v294/n5838/abs/294268a0.html
-
http://www.sciencemag.org/cgi/content/abstract/215/4535/975?ck=nck
- Lasker Awardees
- The four papers are, *Popovic M, Sarngadharan MG, Read E, Gallo
RC. (1984) Detection, isolation, and continuous production of
cytopathic retroviruses (HTLV-III) from patients with AIDS and
pre-AIDS. Science 224(4648): 497-500 (4 May). PMID 6200935
*Gallo RC, Salahuddin SZ, Popovic M, Shearer GM, Kaplan M, Haynes
BF, Palker TJ, Redfield R, Oleske J, Safai B, et al. (1984)
Frequent detection and isolation of cytopathic retroviruses
(HTLV-III) from patients with AIDS and at risk for AIDS.
Science 224(4648): 500-3 (4 May). PMID 6200936 *Schüpbach
J, Popovic M, Gilden RV, Gonda MA, Sarngadharan MG, Gallo RC.
(1984) Serological analysis of a subgroup of human T-lymphotropic
retroviruses (HTLV-III) associated with AIDS. Science
224(4648): 503-5 (4 May). PMID 6200937 *Sarngadharan MG, Popovic M,
Bruch L, Schüpbach J, Gallo RC. (1984) Antibodies reactive with
human T-lymphotropic retroviruses (HTLV-III) in the serum of
patients with AIDS. Science 224(4648): 506-8 (4 May). PMID
6324345
- Barré-Sinoussi F, Chermann JC, Rey F, Nugeyre MT, Chamaret S,
Gruest J, Dauguet C, Axler-Blin C, Vézinet-Brun F, Rouzioux C,
Rozenbaum W, Montagnier L. (1983) Isolation of a T-lymphotropic
retrovirus from a patient at risk for acquired immune deficiency
syndrome (AIDS). Science 220(4599): 868-71 (20 May). PMID
6189183
- http://history.nih.gov/01Docs/about/LaskerAwardees.htm
- Summary of fraud accusation
- PMID 8502298 (Open access)
-
http://sciencenow.sciencemag.org/cgi/content/full/2008/1006/1
- Montagnier L. (2002) Historical essay. A History of HIV
Discovery. Science 298(5599): 1727-8 (29 November). PMID
12459575 Gallo RC. (2002) Historical essay. The Early Years of
HIV/AIDS. Science 298(5599): 1728-30 (29 November). PMID
12459576 Gallo RC & Montagnier L. (2002) Historical essay.
Prospects for the Future. Science 298(5599): 1730-1 (29
November). PMID 12459577
- the Institute of Human Virology: About IHV
- VoA Zulima Palacio. "AIDS Research Continues at
US Laboratory, After Human Trials Halted." Voice of America, May 8,
2008.
Further reading
External links