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 Grand Challenges Explorations Grants

Grand Challenges Explorations fosters creative projects that show great promise to improve the health of people in the developing world. Initial grants are awarded two times a year, and successful projects have the opportunity to receive additional funding of up to $1 million.

On May 10, 2010, the Gates Foundation announced that 78 new global health projects received Grand Challenges Explorations grants. Learn more about these below. Round 5 grants will be announced in October 2010.

To review all 340 Explorations projects, select "Show All Rounds" in the Round drop-down menu.

 Find Awarded Grants By

Topic
Technologies
Round
Showing Grants 1 to 10 of 14
Excreting HIV Using Antibodies
Primary Investigator:
Edward Dolk, Utrecht University, Utrecht, Netherlands - NL
Topic:
Round:
Round 3 – October 2009
Edward Dolk of Utrecht University in the Netherlands proposes using two-sided antibodies, which bind to HIV and to transport receptors in the epithelium. Binding these receptors will cause excretion of the HIV particles outside of the body, thereby reducing viral load.
Inducing Autophagy in Dendritic Cells By DNA Delivery
Primary Investigator:
Tanapat Palaga, Chulalongkorn University, Bangkok, Thailand - TH
Topic:
Round:
Round 3 – October 2009
Tanapat Palaga of Chulalongkorn University in Thailand seeks to create a novel DNA vaccine delivery system that targets dendritic cells in GI mucosal tissues. Using chitosan nanoparticles to encapsulate DNA plasmid and protect it from stomach acid, this potential vaccine construct will contain both an antigen and an autophagy-inducing gene to enhance the vaccine’s efficacy.
Induction of HIV Protective Mucosal Antibodies
Primary Investigator:
Claudia Pastori, Fondazione S. Raffaele del Monte Tabor, Milan, Italy - IT
Topic:
Round:
Round 3 – October 2009
Claudia Pastori of Fondazione S. Raffaele del Monte Tabor in Italy seeks to induce mucosal immunity against HIV by using a bacterial adhesive protein to target antigens to specific cells. The goal of this approach is to present conserved epitopes of HIV in their natural form to elicit the production of protective antibodies in the tissues where these antibodies will be effective.
Intestinal Alkaline Phosphatase to Treat and Prevent Diarrhea
Primary Investigator:
Madhu Malo, Massachusetts General Hospital, Boston, MA, United States - US
Topic:
Round:
Round 3 – October 2009
Madhu Malo of Massachusetts General Hospital/Harvard Medical School in the U.S. will investigate whether maintaining the normal intestinal commensal bacteria using oral supplementation of intestinal alkaline phosphatase (IAP), a small intestinal brush-border enzyme, will prevent or cure infection by pathogenic bacteria. A successful project would generate a universal prophylactic and therapeutic strategy against diarrheal diseases.
Metabolic Engineering of Salmonella and Shigella Vaccines
Primary Investigator:
Craig Morita, University of Iowa, Iowa City, IA, United States - US
Topic:
Round:
Round 3 – October 2009
Craig Morita of the University of Iowa in the U.S. will engineer Salmonella and Shigella vaccine vectors to overproduce an essential antigen to stimulate gamma delta T cells, to boost mucosal immune response against these enteric pathogens.
Nanoparticle Mucosal Vaccine Platform from Eggshell Proteins
Primary Investigator:
Allison Ficht, Texas A&M Health Science Center, College Station, TX, United States - US
Topic:
Round:
Round 3 – October 2009
Allison Ficht of Texas A&M Health Science Center in the U.S. will develop a new TB immunization delivery system based on the protein used by parasitic worms to seal their egg case. This “sticky coating” for nanoparticle vaccines could protect antigens during intranasal administration, affix them to the nasal mucosa and erode in a controlled way to slowly release antigens for enhanced immune response against tuberculosis.
New Intravaginal Delivery System to Induce Mucosal Immunity
Primary Investigator:
Emmanuel Ho, University of Utah, Salt Lake City, UT, United States - US
Topic:
Round:
Round 3 – October 2009
Emmanuel Ho of University of Utah in the U.S. will develop a polyether urethane (PU) intra-vaginal ring designed to slowly release the HIV peptide gp120, as well as the cytokine IL-12 as an adjuvant, directly into the vaginal mucosa to stimulate a sustained mucosal immune response.
New Whole-Species Pneumococcal Vaccines
Primary Investigator:
Jeremy Webb, School of Biological Sciences, Southampton, United Kingdom - GB
Topic:
Round:
Round 3 – October 2009
Jeremy Webb and collaborators at the School of Biological Sciences in the United Kingdom will search for unique proteins that allow pneumococcal bacteria to form biofilms on mucosal surfaces. The team will use laser capture micro-dissection “laser tweezers” to dissect these bacterial communities with the goal of finding antigens common to all serotypes and could be used as the basis for future vaccines.
Potentiating Mucosal Vaccines by RANKL Induction of M Cells
Primary Investigator:
Ifor Williams, Emory University School of Medicine, Atlanta, GA, United States - US
Topic:
Round:
Round 3 – October 2009
Ifor Williams of Emory University School of Medicine in the U.S. will test the theory that a newly characterized cytokine that triggers the development of M cells can be used as an adjuvant to boost immunity in mucosal surfaces and lead to greater uptake of vaccines.
Programming T cell Homing to Induce Gut-Selective Immunity
Primary Investigator:
Federica Marelli-Berg, Imperial College London, Division of Medicine, London, United Kingdom - GB
Topic:
Round:
Round 3 – October 2009
Federica Marelli-Berg of Imperial College London, Division of Medicine in the UK will test the theory that using “homing factors” as vaccine adjuvants will induce the development of memory T cells thereby generating site-specific immunity against pathogens in the gut.
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