In this revised application, we seek competitive renewal of our program project, "The Role of Human Milk in Infant Nutrition and Health," which is now entering its 31st year. This is a unique research program on human milk bioactive factors that addresses a long-standing priority of NICHD. Our program project involves a highly interactive, interdisciplinary team of senior and junior investigators with cores and projects at Cincinnati, Mexico, and Boston. Breastfeeding conveys potent bioactive factors that protect child health. During the current grant cycle we have shown that the human milk glycans, particularly, the a1,2 fucosyl ("secretor") oligosaccharides and their high molecular weight glycoconjugates, are a major new class of antimicrobial agents. We have achieved initial synthesis of human milk secretor oligosaccharide analogs (H- 2 on LNneoT) in bioengineered bacteria. In this competitive renewal, we focus on the human milk glycans as novel antimicrobials with three major functions - pathogen-binding inhibition, prebiotic activity, and antiinflammatory activity - that protect breastfeeding children against enteric infectious and inflammatory diseases, three projects are proposed pertaining to the human milk glycans: 1) Inhibition of bacterial gastroenteritis;2) Inhibition of viral gastroenteritis;and 3) Modulation of inflammation, colonization, and mucosal development. In each project, we propose basic, clinical and translational research. Two complementary lines of translational research will be pursued: 1) Developing and testing human milk glycan analogs as novel antimicrobials and 2) testing the secretor phenotype as a novel clinical biomarker for enteric infectious and inflammatory diseases. The projects will be supported by cores in Biometry (Epidemiology, Biostatistics, and Informatics);Glycobiology;and Molecular Biology. Our focus and approach addresses NIH Road Map 2008 priorities pertaining to inflammation, the microbiome, and phenotyping.

Public Health Relevance

The research proposed in this application is designed to transform our fundamental understanding of human milk glycans and infant glycans in relation to disease risk and translate our discoveries into novel therapeutics, dietary interventions, and diagnostic tools that improve infant and child health.

Agency
National Institute of Health (NIH)
Institute
Eunice Kennedy Shriver National Institute of Child Health & Human Development (NICHD)
Type
Research Program Projects (P01)
Project #
5P01HD013021-35
Application #
8514651
Study Section
Special Emphasis Panel (ZHD1-DSR-A (MA))
Program Officer
Grave, Gilman D
Project Start
1997-04-01
Project End
2014-07-31
Budget Start
2013-08-01
Budget End
2014-07-31
Support Year
35
Fiscal Year
2013
Total Cost
$1,098,859
Indirect Cost
$177,623
Name
Cincinnati Children's Hospital Medical Center
Department
Type
DUNS #
071284913
City
Cincinnati
State
OH
Country
United States
Zip Code
45229
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