Congenial anomalies of the kidney and urinary tract are common in childhood and may lead to renal failure, infection, and hypertension. In addition, premature infants experience deficits in renal function because of incomplete renal maturation. For these reasons it is important to understand the mechanisms of normal renal development and of congenial anomalies. Mouse models of human disease serve as useful tools to examine these mechanisms. The applicant has begun to study a model that has early ureteric bud branching defects and an unexpected defect in dorsoventral renal axis formation. Late in development the mice have non-obstructive renal pelvic dilation. This proposal will use the mouse model and organ explant cultures to extend our understanding of the mechanisms leading to renal anomalies and the mechanisms that control normal development.
The aims will be to 1) characterize the mechanism leading to pelvic dilation in the mutant; 2) determine the mechanism that controls differentiation of the collecting duct cell subtypes; 3) characterize the mechanism of proximo distal nephron axis formation; 4) to evaluate the potential for environmental regulation of hoax-11 and hold-11 that would produce of a more serve renal anomaly. The applicant for the award is a pediatric nephrologist who has had an interest and previous experience in renal development and who plans a long-term career in studying in the mechanisms of renal organogenesis. The award will allow him to broaden the scope of his research. The applicant has had a productive maundered relationship with a well- established investigator and will obtain help from two other investigators in the institution. The institution has a particularly strong track record in developmental biology and continues to support new research activity in this field. The environment will allow the candidate to achieve his career goals.

National Institute of Health (NIH)
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Clinical Investigator Award (CIA) (K08)
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Diabetes, Endocrinology and Metabolic Diseases B Subcommittee (DDK)
Program Officer
Rankin, Tracy L
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Cincinnati Children's Hospital Medical Center
United States
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Hartman, Heather A; Lai, Hsiao L; Patterson, Larry T (2007) Cessation of renal morphogenesis in mice. Dev Biol 310:379-87
Schwab, Kristopher; Witte, David P; Aronow, Bruce J et al. (2004) Microarray analysis of focal segmental glomerulosclerosis. Am J Nephrol 24:438-47
Patterson, Larry T; Potter, S Steven (2004) Atlas of Hox gene expression in the developing kidney. Dev Dyn 229:771-9
Devarajan, Prasad; Mishra, Jaya; Supavekin, Suroj et al. (2003) Gene expression in early ischemic renal injury: clues towards pathogenesis, biomarker discovery, and novel therapeutics. Mol Genet Metab 80:365-76
Patterson, Larry T; Potter, S Steven (2003) Hox genes and kidney patterning. Curr Opin Nephrol Hypertens 12:19-23
Schwab, Kristopher; Patterson, Larry T; Aronow, Bruce J et al. (2003) A catalogue of gene expression in the developing kidney. Kidney Int 64:1588-604
Valerius, M Todd; Patterson, Larry T; Feng, Yuxin et al. (2002) Hoxa 11 is upstream of Integrin alpha8 expression in the developing kidney. Proc Natl Acad Sci U S A 99:8090-5