Barbara Iglewski
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Barbara Hotham Iglewski (March 23, 1938 – December 10, 2023) was an American microbiologist. She was director of international programs at the University of Rochester Medical Center where she was a professor of microbiology and immunology.


Early life and education

Barbara Hotham Iglewski was born on March 23, 1938, in
Freeport, Pennsylvania Freeport is a Borough (Pennsylvania), borough in Armstrong County, Pennsylvania, United States. It is situated along the Allegheny River in the southwestern corner of the county. The population was 1,736 at the 2020 United States census, 2020 cen ...
. Her father was a country physician and she would accompany him on house calls during her youth. She attended Allegheny College, earning a B.S. in biology in 1960. She then studied microbiology at
Pennsylvania State University The Pennsylvania State University (Penn State or PSU) is a Public university, public Commonwealth System of Higher Education, state-related Land-grant university, land-grant research university with campuses and facilities throughout Pennsyl ...
, earning her M.S. in 1962 and her Ph.D. in 1964. Iglewski instructed at Oregon Health and Science University School of Medicine before she was hired as a professor by the University of Rochester Medical Center. She was the first woman to chair a department at the University of Rochester School of Medicine and Dentistry, heading the department of microbiology and immunology from 1986 to 2009. From 1995 to 1998 she was the vice provost for research and graduate education, and the first female to hold this position.


Research

Iglewski's research centered on the pathogenesis of the ''
Pseudomonas aeruginosa ''Pseudomonas aeruginosa'' is a common Bacterial capsule, encapsulated, Gram-negative bacteria, Gram-negative, Aerobic organism, aerobic–facultative anaerobe, facultatively anaerobic, Bacillus (shape), rod-shaped bacteria, bacterium that can c ...
'' bacterium. She discovered that a type I quorum sensing system globally regulated virulence in a human pathogen. She discovered exoenzymes and toxins including exo S, a type 3 secreted ''Pseudomonas'' toxin. She was well known for describing the molecular mechanism of action of Pseudomonas toxin A. Her work with Peter Greenberg demonstrated that
gram-negative bacteria Gram-negative bacteria are bacteria that, unlike gram-positive bacteria, do not retain the Crystal violet, crystal violet stain used in the Gram staining method of bacterial differentiation. Their defining characteristic is that their cell envelo ...
produce AHL signals that control processes such as
biofilm A biofilm is a Syntrophy, syntrophic Microbial consortium, community of microorganisms in which cell (biology), cells cell adhesion, stick to each other and often also to a surface. These adherent cells become embedded within a slimy ext ...
formation in neighbouring cells of the same species. From 2007, she studied the regulation of proteases in ''Pseudomonas aeruginosa,'' with a focus on biofilm development and virulence, with the support of a MERIT Award from the NIH. Iglewski published more than 150 research papers and book chapters. She held seven patents. She was recognized by the
Institute for Scientific Information The Institute for Scientific Information (ISI) was an academic publishing service, founded by Eugene Garfield in Philadelphia in 1956. ISI offered scientometric and bibliographic database services. Its specialty was citation indexing and analysis, ...
as a highly cited researcher.


Awards and honors

In 1987, Iglewski was made an Honorary Lifetime Member of Graduate Women in Science, formerly Sigma Delta Epsilon, for research in microbiology and immunology. Iglewski became a fellow of the American Academy of Microbiology in 1986. She was president of the
American Society for Microbiology The American Society for Microbiology (ASM), originally the Society of American Bacteriologists, is a professional organization for scientists who study viruses, bacteria, fungi, algae, and protozoa as well as other aspects of microbiology. It wa ...
(ASM) from 1987 to 1988. She chaired ASM's publications board from 1990 to 1999. Iglewski received the Arthur Kornberg Research Award in 1999 and the Susan B. Anthony Lifetime Achievement Award in 2001. The
University of Rochester The University of Rochester is a private university, private research university in Rochester, New York, United States. It was founded in 1850 and moved into its current campus, next to the Genesee River in 1930. With approximately 30,000 full ...
's School of Medicine and Dentistry awarded her its Lifetime Mentoring Award in 2009. Her undergraduate alma mater, Alleghany College awarded her an honorary degree in 2017. She received the George Eastman Medal from the University of Rochester in 2019. Iglewski was inducted into the National Women's Hall of Fame in 2015.


Personal life and death

Iglewski lived in Gorham, New York. She had two sons, Eric (Connie) Iglewski and Bill Iglewski. Barbara Iglewski died on December 10, 2023, at the age of 85.


References

{{DEFAULTSORT:Iglewski, Barbara 1938 births 2023 deaths Allegheny College alumni American bacteriologists Oregon Health & Science University faculty Eberly College of Science alumni People from Gorham, New York University of Rochester faculty American women microbiologists Scientists from New York (state) 20th-century American biologists Graduate Women in Science members