This program project brings together an interdisciplinary team of three scientists with unique expertise to functionally target and inhibit human polyomavirus infections. The polyomaviruses in general, and the human polyomaviruses in particular, have been shown to utilize distinct host cell carbohydrates and proteins to infect target cells and tissues. The human polyomavirus JCV is the causative agent of a fatal central nervous system demyelinating disease known as progressive multifocal leukoencephalopathy (PML). The majority of PML cases occur in patients with AIDS but recently PML has also been shown to occur in multiple sclerosis patients being treated with potent immunomodulatory drugs that inhibit immunosurveillance of the CNS. There are currently no drugs in the pipeline that target the virus directly and a major goal of this program is to identify compounds capable of directly inhibiting virus infection. This goal will be accomplished by close collaborative interactions between a team consisting of a polyomavirologist, a structural biologist, and a structural chemist. Project # 1 led by Professor Thilo Stehle will focus on structurally characterizing and identifying sites on the virus that are critical for interacting with host cell surfaces. Project # 2 led by Professor Walter Atwood will introduce site-specific mutations in the virus based on these structures and functionally characterize the mutants for defects in assembly, DNA packaging, cell binding, cell penetration, and infection. Project # 3 led by Professor Dale Mierke will design and synthesize chemical compounds to antagonize virus host cell interactions. These compounds will be functionally screened by Project # 2. The projects will be supported by a chemical synthesis core at Dartmouth College headed by Drs. Mierke and Spaller. An administrative core will be housed at Brown University. The overall goal of this program is to use structural information to derive exquisitely specific inhibitors of polyomavirus infection that are potent, nontoxic, and bioavailable. The three major investigators on the team have built a strong working collaboration that is evidenced by the solid preliminary data supporting this application.

Public Health Relevance

The research proposed in this application focuses on understanding the molecular structures involved in virus recognition of host cells. Compounds that antagonize these interactions will be developed with the long term goal of developing therapies for the treatment or prevention of the fatal central nervous system demyelinating disease Progressive Multifocal Leukoencephalopathy.

Agency
National Institute of Health (NIH)
Institute
National Institute of Neurological Disorders and Stroke (NINDS)
Type
Research Program Projects (P01)
Project #
5P01NS065719-05
Application #
8512814
Study Section
National Institute of Neurological Disorders and Stroke Initial Review Group (NSD)
Program Officer
Wong, May
Project Start
2009-09-30
Project End
2014-07-31
Budget Start
2013-08-01
Budget End
2014-07-31
Support Year
5
Fiscal Year
2013
Total Cost
$1,117,880
Indirect Cost
$187,709
Name
Brown University
Department
Biochemistry
Type
Schools of Medicine
DUNS #
001785542
City
Providence
State
RI
Country
United States
Zip Code
02912
Luo, Yong; Motamedi, Nasim; Magaldi, Thomas G et al. (2016) Interaction between Simian Virus 40 Major Capsid Protein VP1 and Cell Surface Ganglioside GM1 Triggers Vacuole Formation. MBio 7:e00297
Dimitriadi, Maria; Derdowski, Aaron; Kalloo, Geetika et al. (2016) Decreased function of survival motor neuron protein impairs endocytic pathways. Proc Natl Acad Sci U S A 113:E4377-86
Maginnis, Melissa S; Nelson, Christian D S; Atwood, Walter J (2015) JC polyomavirus attachment, entry, and trafficking: unlocking the keys to a fatal infection. J Neurovirol 21:601-13
Jelcic, Ivan; Combaluzier, Benoit; Jelcic, Ilijas et al. (2015) Broadly neutralizing human monoclonal JC polyomavirus VP1-specific antibodies as candidate therapeutics for progressive multifocal leukoencephalopathy. Sci Transl Med 7:306ra150
Yatawara, Achani; Gaidos, Gabriel; Rupasinghe, Chamila N et al. (2015) Small-molecule inhibitors of JC polyomavirus infection. J Pept Sci 21:236-42
Ströh, Luisa J; Maginnis, Melissa S; Blaum, Bärbel S et al. (2015) The Greater Affinity of JC Polyomavirus Capsid for α2,6-Linked Lactoseries Tetrasaccharide c than for Other Sialylated Glycans Is a Major Determinant of Infectivity. J Virol 89:6364-75
Haley, Sheila A; O'Hara, Bethany A; Nelson, Christian D S et al. (2015) Human polyomavirus receptor distribution in brain parenchyma contrasts with receptor distribution in kidney and choroid plexus. Am J Pathol 185:2246-58
Nelson, Christian D S; Ströh, Luisa J; Gee, Gretchen V et al. (2015) Modulation of a pore in the capsid of JC polyomavirus reduces infectivity and prevents exposure of the minor capsid proteins. J Virol 89:3910-21
Haley, Sheila A; Atwood, Walter J (2014) An animal model for progressive multifocal leukoencephalopathy. J Clin Invest 124:5103-6
Zins, Stephen R; Nelson, Christian D S; Maginnis, Melissa S et al. (2014) The human alpha defensin HD5 neutralizes JC polyomavirus infection by reducing endoplasmic reticulum traffic and stabilizing the viral capsid. J Virol 88:948-60

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