
Department of Biological Sciences
210 Julian Hall
Illinois State University
Normal, IL 61790-4120
Tel: (309) 438-2608
Fax: (309) 438-3722
E-mail: dlwilli@ilstu.edu
Host-parasite interactions; Molecular Biology; Biochemistry; Genome Studies; Immunology;
Drug development; Mechanisms of drug action.
Parasites pose major health and veterinary problems throughout the world. By studying fundamental aspects of parasite biology, we hope to find means to control parasitic diseases, for example vaccine antigens or novel targets for chemotherapy development. Schistosomiasis is an important and widespread human pathogen caused by the trematode parasite Schistosoma mansoni. We use molecular, biochemical, and immunological tools to define key aspects of the schistosome-host interaction.
1976-1980 Cornell University, B.S., Biochemistry
1980-1983 Peace Corps Volunteer Chemistry Teacher, Aburi Girls' Secondary School, Aburi Ghana
1983-1990 University of Illinois Urbana-Champaign, Ph.D., Biochemistry
1990-1992 Center for Parasite Biology and Immunology, Fogarty Post Doctoral Fellow, Institute Pasteur de Lille, France
1992-1995 Dept. of Entomology, NYSAES, Cornell University
Ahmed A. Sayed, PhD
Cynthia L. Cass, PhD
Seungho Kang, MS
Debalina Ray, MS
Peter D. Ziniel, BS
Elsa Krishnaswamy, BS
Andrew Hranka
Alexander Czarnocki
Srivathsan Vijayaraghavan
Simeonov, A., Jadhav, A., Sayed, A.A., Wang, Y., Nelson, M.E., Thomas, C.J., Inglese, J., Williams, D.L., Austin, C.P. (2008) Quantitative high-throughput screen identifies inhibitors of the Schistosoma mansoni redox cascade. PLoS Neglected Tropical Diseases 2(1): e127. qHTS
Williams, D.L., Sayed, A.A., Bernier, J., Birkeland, S.R., Cipriano, M.J., Papa, A.R., McArthur, A.G., Taft, A., Vermeire, J.J., Yoshino, T.P. (2007) Profiling Schistosoma mansoni development using Serial Analysis of Gene Expression (SAGE). Experimental Parasitology 117, 246–258. Schisto SAGE
Cass, C.L., Johnson, J.R., Califf, L.L., Xu, T., Hernandez, H.J., Stadecker, M.J., Yates, J.R., III, Williams, D.L. (2007) Proteomic analysis of Schistosoma mansoni egg secretions. Molecular and Biochemical Parasitology 155, 84-93. Cass et al.
Kuntz, A.N., Davioud-Charvet, E., Sayed, A.A., Califf, L.L., Dessolin, J., Arnér, E.S.J., Williams, D.L. (2007) Thioredoxin glutathione reductase from Schistosoma mansoni: An essential parasite enzyme and a key drug target. PLoS Medicine 4(6), e206. Kuntz et al.
Williams, D.L., Sayed, A.A., Ray, D., and McArthur A.G. (2006) Schistosoma mansoni albumin, a major defense against oxidative damage, was acquired by lateral gene transfer from a mammalian host. Molecular and Biochemical Parasitology 150, 359–363. Albumin LGT
Sayed, A.A., Cook S.K., and Williams D.L. (2006) Redox balance mechanisms in Schistosoma mansoni rely on peroxiredoxins and albumin and implicate peroxiredoxins as novel drug targets. Journal of Biological Chemistry 281, 17001-17010. Sayed Cook Williams
Williams, D.L., Asahi, H., Oke, T.T., da Rosa, J.L., and Stadecker, M.J. (2005) Murine immune responses to a novel schistosome egg antigen, SmEP25. International Journal for Parasitology 35, 875-882. SmEP25 Williams et al.
Williams, D.L. and Pierce, R.J (2005) Schistosoma Genomics. In ‘Schistosomiasis’, World Class Parasites series; v. 10, eds. W. Evan Secor and Daniel G. Colley, Springer, New York.
Sayed, A.A., and Williams D.L. (2004) Biochemical characterization of 2-Cys peroxiredoxins from Schistosoma mansoni. Journal of Biological Chemistry 279, 26159-26166. Sayed and Williams

Angie Kuntz receiving Honorable Mention Herrick award at AMCOP-56 from Dr. Patrick Muzzall
Williams lab at AMCOP-56

From left to right: D. Williams, Lindsay Califf,
Ahmed Sayed, Angie Kuntz, Tolu Oke
Ahmed Sayed receiving Honorable Mention LaRue award at AMCOP-55 from Dr. Tom Platt

Shawna Cook receiving Honorable Mention Herrick award at AMCOP-55 from Dr. Tom Platt

Brad Foulk receiving the Herrick Award at AMCOP-53 from Drs. Lin Twining and Darwin Wittrock
