PUBLIC RELEASE DATE:
29-Jul-2014
Contact: Christopher Hardwick chardwick@som.umaryland.edu 410-706-5260 University of Maryland School of Medicine
The University of Maryland Schools of Dentistry (UM SOD) and Medicine (UM SOM) jointly announced today that they have received a five-year $10.7 million grant award from the National Institute of Allergy and Infectious Diseases (NIAID) of the National Institutes of Health to study the causes, prevention and treatment of sexually-transmitted diseases (STDs). The grant, which renews a previous $12 million five-year NIAID-funded research program, represents a new direction for the research by studying chlamydial and gonorrheal diseases as the outcome of complex interactions between the host genetics, the urogenital polymicrobial microbiome, and the pathogen's unique genetics. By applying modern "omics" technology, the study aims at identifying novel molecular "biomarkers" of susceptibility to sexually transmitted infections (STIs), ensuing disease severity, and conversely protection from STIs and STDs. Biomarkers can be measured in the body (or its products) as a means to predict and potentially influence pathways related to disease. They may reveal mechanisms of infection or disease that can be exploited as therapeutic or diagnostic targets.
The long-term goal of the research is to develop strategies and the means to reduce the incidence of STIs and STDs worldwide - particularly chlamydia (caused by Chlamydia trachomatis) and gonorrhea (caused by Neisseria gonorrhoeae, also known as the gonococcus). Chlamydial genital infections are the most common bacterial infectious disease in America, with 2.8 million cases estimated annually. Gonorrhea is estimated at 820,000 infections in America each year. These infections together cause most of the 750,000 cases of pelvic inflammatory disease seen each year in the United States. Pelvic inflammatory disease, in turn, is a leading cause of female infertility and life-threatening conditions in women such as ectopic pregnancy.
"This grant is particularly significant because it is the first time that a comprehensive systems biology (or 'multi-omics') approach will be utilized to conduct STD research with the ultimate goal of developing knowledge to prognose, diagnose, prevent and treat sexually transmitted infection and disease," said Jacques Ravel, PhD, Professor of Microbiology and Immunology and Associate Director for Genomics at the Institute for Genome Sciences (IGS) at the UM SOM, who is the co-principal investigator on the study. "By looking at how human genetics and the microbiome affect and influence infections in humans, we can gain a much better understanding of how to protect against these types of infection, which is critical for improving public health."
"We believe that this project will generate new essential knowledge into the mechanisms of sexually transmitted infection and disease as they occur, both in the human host and within the microbes that cause chlamydia and gonorrhea," says co-principal investigator Patrik Bavoil, PhD, Professor and Chair of the Department of Microbial Pathogenesis at the UM SOD."We will be identifying human and microbial biomarkers that will tell us who is most susceptible to infection, who is most susceptible to severe disease, even in the absence of symptoms," adds Dr. Bavoil, who is also an adjunct professor in the Department of Microbiology and Immunology at the UM SOM."These biomarkers could also provide us with new targets for new ways to prevent and treat STIs and STDs long before these microbes have a chance to endanger a woman's reproductive health."
The new grant establishes one of five nationwide Cooperative Research Centers on Sexually Transmitted Infection (CRC-STI), which will be jointly led by the UM SOM and UM SOD, to implement three projects:
Project 1 will explore the role of human genetic variance in dictating the outcome of the 'dialogue' between the pathogen, the microbiota and the host in both experimental infections and patient samples. The underlying hypothesis of this project is that host genetics plays an important role in determining susceptibility to STIs and ensuing disease severity. This project will be led by Drs. Raphael Valdivia and Dennis Ko, both at Duke University.
Project 2, which will be co-directed by Drs. Bavoil and Garry Myers, PhD, Associate Professor at the University of Technology in Sydney, Australia, aims to identify antibody and miRNA-based biomarkers of chlamydia infection, chlamydia/gonorrhea co-infection and pelvic inflammatory disease with a specific focus on the translational potential of these biomarkers in clinical and public health.
Read the original here:
University of Maryland Schools of Dentistry and Medicine receive NIH grant
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