Duc Dong Archives - Sanford Burnham Prebys
Institute News

Inspiring future scientists at the STEM EXPO

AuthorMonica May
Date

March 25, 2019

Armed with wiggly worms and striped zebrafish, on Saturday, March 2, more than 20 volunteers from Sanford Burnham Prebys helped kids and their families learn about the power of DNA at the San Diego Festival of Science & Engineering’s EXPO Day. 

One of the largest STEM (Science, Technology, Engineering and Math) festivals in the U.S., this year’s event featured more than 130 interactive exhibits designed to ignite a passion for science in K–12 students. Despite an uncharacteristically rainy morning, an estimated 17,000 people attended. 

 

For Joseph Lancman, PhD, a postdoctoral researcher at our Institute who was the first in his family to graduate from college, the festival was an opportunity to provide children with the experience he wishes he’d had as a kid.

“Growing up, I knew I was interested in human health, but I had no idea that research was an option,” Lancman says. “Like many kids, I thought I wanted to be a doctor. But in college, I quickly learned that I wanted to know more. I wanted to know what causes disease and how scientists go about finding cures.” 

STEM EXPO 2019 Joseph Lancman and son Dr. Lancman and his son

At our booth, postdoctoral researchers, graduate students and staff helped children don paper lab coats and explore DNA-themed activities. 

Children were able to see live worms with DNA mutations that affect their movement, courtesy of the lab of Malene Hansen, PhD, professor in the Development, Aging and Regeneration Program. Compared to normal worms, some mutant worms moved mindlessly in circles, and others remained relatively immobile—illustrating how changes in a DNA sequence can dramatically affect life.

At the adjacent station, provided by the lab of Duc Dong, PhD, assistant professor in the Human Genetics Program, children squinted through microscopes and peered into fish tanks to observe how DNA changes can dramatically affect the heartbeat of zebra fish—one of the most powerful model organisms used to study vertebrate biology. 

Lancman, who works in Dong’s lab, took care to explain the exhibit in child-friendly language (he credits his four-year-old son for helping him develop this skill). 

“I want kids to know that science is like a puzzle,” he explains. “It takes time to put all the pieces together, but when you’re done, you can see the big picture—and that big picture can lead to improving human health.”

Institute News

Duc Dong honored at Alagille Syndrome Alliance Gala

AuthorSusan Gammon
Date

July 10, 2018

Associate Professor Duc Dong, PhD, was the guest of honor at the Gala of Dreams, the inaugural fundraiser for the Alagille Syndrome Alliance held June 30 at the San Diego Marriott Del Mar. Dong is a trailblazer in the field of Alagille syndrome research—he is working toward a cure for the extremely rare genetic condition that affects approximately one in 30,000 births.

Babies born with Alagille syndrome have too few bile ducts—which are essential for the transport of waste out of the liver. This causes toxins build up in the liver and throughout the body, leading to constant severe itching, and more critically, liver damage and failure. Alagille syndrome patients also have many other life-threatening developmental defects in other parts of their bodies, including the heart, kidneys, vertebrae, and blood vessels. There is no cure for this debilitating disease, and up to 50 percent of patients eventually need a liver transplant, often during childhood.

Dong and his team have been studying JAGGED1, the gene implicated in Alagille syndrome. Taking advantage of an unusual animal model, the zebrafish, he has been able to uncover a novel genetic mechanism for the disease—opening new potential therapeutic avenues. Further, his team has surprisingly discovered that the bile ducts lost can be regenerated after turning the affected gene back “on.”

“The implication is that these developmental defects in Alagille syndrome patients could potentially be reversible and therefore curable,” says Dong. “We will now start screening for drugs that may be used to restore the function of this genetic pathway and hopefully allow for these lost bile ducts to regenerate. We will continue to challenge the science of Alagille syndrome to move closer to a cure.”

The theme of the event, “The Dawn of a Dream,” signified new advances in Alagille syndrome research and the anniversary of the organization’s 25th year in existence. The evening gave advocates, families, doctors and pharma representatives an opportunity to interact in a fun, casual setting and participate in a silent auction to raise money for research. Dong’s lab was presented with the Champion of Alagille Syndrome Award and funds raised by the Alliance through crowd sourcing.

Institute News

Preuss School interns get an “A” grade at SBP

AuthorHelen I. Hwang
Date

August 4, 2017

“I got to do things I never thought I could do,” said Yadira Gomez Rangel, 16, a rising junior at Preuss School in San Diego. “I got a chance to dissect a fly, which I didn’t think I could do,” she told the audience at Sanford Burnham Prebys Medical Discovery Institute (SBP), which included SBP Trustees Malin Burnham and Wain Fishburn as well as CEO Perry Nisen, MD, PhD

Rangel is one of seven students from the prestigious Preuss School, who completed a two-week internship. Students from the Preuss School, affiliated with UC San Diego, strive to become the first in their families to graduate from college. The SBP Preuss program is designed to introduce young scientists-in-training to medical research by working hand in hand with our scientists.

The group of 16-year-olds got a chance to rotate among four different labs at SBP. The other students included Michelle Villa Bardales, Josué Barragán, Edizandro Morales Herrera, Arturo Torres Jimenez, Jenny Nguyen and Natalie Nguyen. Students presented posters in English and Spanish, received a certificate and a stipend for their hard work.

Fishburn said the Preuss program at SBP was “inspirational” as he hoped the young teens would continue their path in science. At the celebratory luncheon with students, their families and SBP staff, Fishburn chatted with Tommy Le, a Preuss School graduate. Le was part of the SBP Preuss program for the two-week internship, followed by a six-week internship the following year, and is now doing a summer internship at SBP before entering UC San Diego in the fall where he’ll major in biochemistry.

Each summer, SBP also hosts a six-week internship for rising Preuss seniors, sponsored by the NIH CURE program. Two of the seven interns (who happen to be all female), Gizelle Avitia Mejica and Julieta Morales Ornelas, also completed the two-week Preuss program, which inspired them to apply again at SBP. “About 90 percent of what I learned in the lab I wouldn’t have been taught in the classroom,” says Mejica.  

During the internship, the teenagers studied several aspects of medical research. They examined the correlation between obesity and heart disease in fruit flies in the laboratory of Rolf Bodmer, Ph.D. Also, the kids studied zebrafish and tackled the challenge of curing diabetes in the laboratory of Duc Dong, Ph.D. They looked at how to use C. elegans worms to understand the aging process in the laboratory of Malene Hansen, Ph.D. Finally, in the laboratory of Jing Crystal Zhou, Ph.D., the young scientists learned about RNA modification, a process that occurs in all living organisms and can influence how diseases occur.

With hands-on training and in-depth laboratory involvement, the Preuss students gained invaluable skills and networking opportunities. The program is made possible by founding philanthropists Peggy and Peter Preuss and Debby and Wain Fishburn. Jimenez said, “It’s been a wonderful experience!”

Preuss School Internship Program with SBP Trustees

 

Institute News

We know what the scientists of the future did this summer

Authorsbraun
Date

July 22, 2015

On July 17, 11 students from The Preuss School UCSD celebrated the end of an intensive two-week summer research program with a poster symposium and luncheon at SBP’s La Jolla campus. The program provided talented 11th graders with the opportunity to experience what it is like in a research lab, learning daily research lessons and laboratory experiments, and about the various careers in science. Continue reading “We know what the scientists of the future did this summer”