Alumna Fighting Disease One Germ at a Time
October 10, 2007
BLOOMINGTON, Ill.— Emily Richter admits her childhood fantasies differed from other
children. “I’ve been thinking about going off and fighting diseases since I was about
nine years old,” said Richter, a 2005 Illinois Wesleyan University graduate with a
degree in biology. Unlike many who dreamed of being ballerinas or rock stars, Richter’s
dream is coming true.
Currently a graduate student in microbiology at Arizona State University in Tempe,
Richter is part of a team at the Biodesign Institute housed at ASU, which is studying
the effects of Salmonella typhimurium, the bacteria known for causing food poisoning.
The team, headed by Dr. Cheryl Nickerson, recently made international headlines with
research that sent samples of the bacteria aboard the Space Shuttle Atlantis. Recently
published data found the bacteria became more virulent after the trip into space.
According to the research, spaceflight conditions, including fluid shear dynamics,
can affect the genetics of the bacteria, making it more virulent. “When you get into
space, there is less gravity, so there is nothing pressing on the sides of the bacteria,”
said Richter. “Bacteria tends to grow in the intestinal track for the same reason,
there is less fluid shear on the bacteria slowing it down. In space, without that
weight of gravity that pulls on all human, the fluid shear is even less, and the bacteria
can grow faster.”
Richter, who utilizes novel 3-D tissue culture models to study how Salmonella attacks
human tissues, revels in the chance to work on the team. “This is an incredible experience,
both with the research and meeting people who work in the space program,” she said.
“Dr. Nickerson’s work is so fantastic and has a chance for a real, global impact.”
Though Salmonella is rarely a serious threat in the United States, it can be life
threatening in other parts of the world. “Yes, this is the same bug that gets you
sick if you go to a sketchy restaurant,” said Richter, “but millions of infants worldwide
die each year from diseases linked to Salmonella. If we can gain any understanding
of the mechanism that causes people to get sick, it would make a difference.”
Richter said she feels lucky to be working at the Biodesign Institute, and attributes
part of her success to Illinois Wesleyan. “I don’t think I could have received better
preparation for graduate school than I did at Illinois Wesleyan,” said Richter. “The
professors in the biology department taught science at a deep level and inspired a
wonderful work ethic.” Being able to do research since her sophomore year at IWU also
helped, said Richter. “I’ve done the lab work. The combination of a strong academic
environment with hands-on research really puts you ahead of the game.”
While studying at Illinois Wesleyan, a trip to Costa Rica with biology Professor Given
Harper helped expand Richter’s horizons. “Travel like that is always good, because
it develops a global perspective, and offers a better understanding of the world,”
said Richter. “I always had an interest in assisting developing countries, IWU helped
me shape my direction.”
More research is planned from the data at the Biodesign Institute, and plans are in
place to hopefully send another set of bacteria in a space shuttle flight in 2008.
“There is a lot to be done, and I’m glad to be a part of it,” said Richter.
Contact: Rachel Hatch, (309) 556-3960