Photo credit - Anna Kreslavskaya

M. Todd Valerius, Ph.D.
Research Associate
Andy McMahon Laboratory
Department of Molecular & Cellular Biology
Harvard University
16 Divinity Avenue
Cambridge, MA 02138
Lab (617) 496-3757
Email tvalerius [at] mcb.harvard.edu
http://www.people.fas.harvard.edu/~valerius/
Education
U. of Cincinnati College of Medicine
U. of Cincinnati
.
Ph.D. in Molecular and Developmental Biology, 2000
Bachelor of Science in Biology, 1992
Publications (17 in print)
PubMed LinkAkio Kobayashi, M. Todd Valerius, Joshua W. Mugford, Thomas J. Carroll, Michelle Self, Guillermo Oliver, and Andrew P. McMahon (2008). Six2 defines and regulates a multipotent self-renewing nephron progenitor population throughout mammalian kidney development. Cell Stem Cell 3, 169-81. MCB News Story
Benjamin D. Humphreys, M. Todd Valerius, Akio Kobayashi, Joshua W. Mugford, Savuth Soeung, Jeremy S. Duffield, Andrew P. McMahon, and Joseph V. Bonventre (2008). Intrinsic Epithelial Cells Repair the Kidney after Injury. Cell Stem Cell 2, 284-91.
M. T. Valerius, and A. P. McMahon (2008). Transcriptional profiling of Wnt4 mutant mouse kidneys identifies genes expressed during nephron formation. Gene Expression Patterns, 8, 297-306.
In this study, I compared Wnt4 mutant kidneys with wildtype controls to identify genes expressed during morphogenesis of the nephron. Whole mount in situ analysis was done on 217 genes identified as differentially expressed. Genes expressed in renal vesicle and their derivatives, structures absent in the mutant, accounted for the largest number of the observed expression patterns. This study has produced a useful compendium genes expressed during nephrogenesis, has informed the current set of studies and the design of several transgenic lines.
*Park, J.P., *Valerius, M.T., and McMahon, A.P. (2007). Wnt/beta-catenin signaling regulates nephron induction during mouse kidney development. Development 134, 2533-2539. *authors contributed equally
Little, M. H., Brennan, J., Georgas, K., Davies, J. A., Davidson, D. R., Baldock, R. A., Beverdam, A., Bertram, J. F., Capel, B., Chiu, H. S., ...Valerius, M. T., et al. (28 authors) (2007). A high-resolution anatomical ontology of the developing murine genitourinary tract. Gene Expr Patterns 7, 680-699.
Cheng, H. T., Kim, M., Valerius, M. T., Surendran, K., Schuster-Gossler, K., Gossler, A., McMahon, A. P. and Kopan, R. (2007). Notch2, but not Notch1, is required for proximal fate acquisition in the mammalian nephron. Development 134, 801-11.
Gray, P. A., Fu, H., Luo, P., Zhao, Q., Yu, J., Ferrari, A., Tenzen, T., Yuk, D. I., Tsung, E. F., Cai, Z., Alberta J. A., Cheng L. P., Liu Y., Stenman J. M., Valerius M. T., et al. (22 authors) (2004). Mouse brain organization revealed through direct genome-scale TF expression analysis. Science 306, 2255-2257.
Yu, J., McMahon, A. P., and Valerius, M. T. (2004). Recent genetic studies of mouse kidney development. Curr Opin Genet Dev 14, 550-557.
Valerius, M. T., Patterson, L. T., Feng, Y., and Potter, S. S. (2002). Hoxa 11 is upstream of Integrin alpha8 expression in the developing kidney, Proc Natl Acad Sci U S A 99, 8090-5.
Valerius, M. T., Patterson, L. T., Witte, D. P., and Potter, S. S. (2002). Microarray analysis of novel cell lines representing two stages of metanephric mesenchyme differentiation, Mech Dev 112, 219-32.
Potter, S. S., Valerius, M. T., and Brunskill, E. W. (2002). Using progenitor cells and gene chips to define genetic pathways, Methods Mol Biol 185, 269-84.
Branford, W. W., Zhao, G., Valerius, M.T., Weinstein, M., Birkenmeier, E. H., Rowe, L. B., Potter, S. S. (1997) Spx1, a novel X-linked homeobox gene expressed during spermatogenesis. Mech. Dev. 65: 87-98.
Haynes, T., Thomas, M.B., Dusing, M.R., Valerius, M.T., Potter, S.S. and Wiginton, D. (1996) An enhancer LEF-1/TCF-1 site is essential for insertion-site independent transgene expression in thymus. Nucleic Acids Res. 24:5034-44.
Li, H., Zeitler, P.S., Valerius, M.T., Small, K., Potter, S.S. (1996) Gsh-1, an orphan Hox gene, is required for normal pituitary development. EMBO 15: 714-724.
Valerius, M.T., Li, H., Stock, J.L., Weinstein, M., Kaur, S., Singh, G. and Potter, S.S. (1995) Gsh-1: A novel murine homeobox gene expressed in the central nervous system. Dev. Dyn. 203: 337-351.
Aronow, B.J., Ebert, C.A., Valerius, M.T., Potter, S.S., Wiginton, D.A., Witte, D.P. and Hutton, J.J. (1995) Dissecting a locus control region: Facilitation of enhancer function by extended enhancer-flanking sequences. Mol. Cell Bio. 15: 1123-1135.
Kern, M.J., Witte, D.P., Valerius, M.T., Aronow, B.J. and Potter, S.S. (1992) A novel murine homeobox gene isolated by a tissue specific PCR cloning strategy. Nucleic Acids Research 20: 5189-95.
Invited Seminars
"Nephron progenitors and patterning of the nephron tubules." Department of Medicine and Department of Genetics and Genomics, DIG - Developmental Biology Interest Group, Boston University School of Medicine, October 26th, 2007.
"Developmental Patterning of the Nephron and the Role of Notch Signaling." Renal Division Research Seminar Series, Brigham and Women's Hospital, October 19th, 2005.
"Gene discovery in kidney development by transcriptional profiling." Bauer Center for Genomics Research Genomics Talks, Harvard University April 2nd, 2002.
Recent Abstracts Presented (3 of 12 shown)
"GUDMAP - The GenitoUrinary Development Molecular Anatomy Project." Valerius, M. T., Yu, J., McMahon, A. P., GUDMAP Consortium Members. Kidney Development & Repair Conference, Alexandria, VA, February 2007.
"Ectopic Notch signaling results in patterning defects in the developing nephron." M. Todd Valerius and Andrew P. McMahon, and "GUDMAP - The GenitoUrinary Development Molecular Anatomy Project." Valerius, M. T, Yu, J., McMahon, A. P., GUDMAP Consortium Members. Mouse Molecular Genetics Meeting, Cold Spring Harbor Laboratories, NY, September 2006.
"Ectopic Notch signaling results in patterning defects in the developing nephron." M. Todd Valerius and Andrew P. McMahon. Society for Developmental Biology, Ann Arbor, MI, July 2006. Attended on a Travel Award for winning the postdoctoral poster competition at the Northeast Regional SDB Meeting.
Funding
2001-2004 NIH Postdoc (McMahon) Ruth L. Kirschstein National Research Service
Award (NRSA) Research Training Fellowship
2004-present NIH Research Associate GUDMAP - GenitoUrinary Development Molecular Anatomy Project (GUDMAP), McMahon Group
Links
http://del.icio.us/dbtodd/biology
These are my public bookmarks tagged as biology. Includes databases, resources, and researchers of interest to me. I've included notes on many describing the resource.
http://network.nature.com/profile/dbtodd
This is my short research profile from the Nature Network Site.
http://www.gudmap.org
Main website entry to the GUDMAP project and database. We are one of seven core labs involved in this consortium. The site includes our protocols and a list of mouse strains being generated, as well as a portal to the database and the data we contribute.
UPDATED August 2008