Purdue and S. Korean Researchers Collaborate on Nanomedicine Project
News Jul 17, 2007
Research teams from Purdue's Discovery Park and the Korean Institute of Science and Technology are collaborating on a $4.5 million project to develop molecular imaging and nanotechnology tools to simultaneously diagnose and treat cancer and chronic and infectious diseases.
The Korean Institute of Science and Technology, also known as KIST, and Purdue developed a research proposal utilizing the complementary strengths of both institutions' internationally renowned research groups.
The South Korean Ministry of Science and Technology selected the KIST and Purdue team project from 20 international research proposals submitted to examine how to learn more about the molecular makeup of diseases. The research initiative, which spans nine years, initially will involve dozens of KIST and Purdue researchers.
"Theragnosis is a new concept in next-generation medicine that combines simultaneous diagnostics and therapeutics," said Purdue project leader James Leary, the School of Veterinary Medicine Professor of Nanomedicine at Discovery Park's Birck Nanotechnology Center and a professor of basic medical sciences and biomedical engineering.
"In this case, we are combining new molecular imaging, biosensing and nanomedical techniques, linking our state-of-the-art facilities and equipment in Discovery Park with researchers and advanced labs in South Korea. It's truly an international, interdisciplinary team effort."
Joining Leary from Purdue on the project are:
• Kinam Park, the Showalter distinguished professor of Biomedical Engineering and a professor of pharmaceutics.
• J. Paul Robinson, professor in the schools of Biomedical Engineering and Veterinary Medicine and director of Purdue's Cytometry Laboratories at the Bindley Bioscience Center.
• Ji-Xin Cheng, an assistant professor in the Weldon School of Biomedical Engineering and Department of Chemistry.
The Purdue team is working with researchers Kuiwon Choi of KIST, who will lead the South Korean research team along with Ick Chan Kwon, the co-principal investigator of the program.
"The collaboration between KIST's Biomedical Research Center and Purdue's Bindley Bioscience Center will be the most promising implement for theragnosis," said Choi, who leads the Biomedical Research Center at KIST and is currently president of the Korean Society of Biomechanics.
As a part of the project, KIST and Purdue researchers will work to advance the role that nanoparticles can play in the diagnosis and treatment of cancer or chronic diseases like diabetes and multiple sclerosis.
"This research program is believed to be the first in the world to integrate molecular imaging and nanomedicine with chemistry, drug delivery, cell biology and molecular biology, as well as cell engineering and clinical medicine," Leary said. "These disciplines together are far more powerful in advancing medicine than they are individually. This advances our research efforts to examine how we can treat diseases at the molecular level."
"We are taking medical treatment to the individual cell level and even to the molecules within a cell," Leary said. "That is where the disease is. A nanoparticle could find a cell infected with a virus and disassemble the virus without harming the host cell. Current methods, such as surgery and radiation treatment, are blunt instruments compared to the future of nanomedicine. Through nanomedicine, we could repair infected cells instead of killing them."
For Park, this project advances his research in using various synthetic polymers, such as polymer micelles and hydrogels, for controlled delivery of various molecular imaging systems.
"The emerging field of nanomedicine, specifically employing nanomaterials for in-vivo imaging, diagnostics and therapeutics, is of primary interest for activities at the Purdue Discovery Park and the Bindley Bioscience and Birck Nanotechnology centers," Park said. "International collaborations of this magnitude are crucial to create an environment for interdisciplinary collaborations leading to significant advancements in this arena."
Robinson will employ advancements he has made in his cytometry lab at Bindley that enables the KIST-Purdue team to study as many as 32 different colored tags identifying molecules of interest from a single cell flowing past a laser beam. These tags will yield a wealth of data about particular cells.
The Purdue team also is studying techniques for attaching fluorescent molecules to nanoparticles to diagnose and treat illnesses. These are designed to light up at certain stages of the process, with some able to employ different colors at different stages. Within a layered nanoparticle, color change could indicate the activity of each layer and therapeutic molecule. They also become tracking devices for the nanoparticles within the human body.
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