Renal Development: A Complex Process Dependent on Inductive Interaction

ISSN: 1875-6336 (Online)
ISSN: 1573-3963 (Print)

Volume 13, 4 Issues, 2017

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Current Pediatric Reviews

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Giuseppe Buonocore
Department of Molecular and Developmental Medicine
University of Siena

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Renal Development: A Complex Process Dependent on Inductive Interaction

Current Pediatric Reviews, 10(2): 107-114.

Author(s): Kiran K. Upadhyay and Douglas M Silverstein.

Affiliation: The United States Food and Drug Administration, Office of Device Evaluation, Center for Devices and Radiological Health, Renal Devices Branch, Silver Spring, Maryland, USA.


Renal development begins in-utero and continues throughout childhood. Almost one-third of all developmental anomalies include structural or functional abnormalities of the urinary tract. There are three main phases of in-utero renal development: Pronephros, Mesonephros and Metanephros. Within three weeks of gestation, paired pronephri appear. A series of tubules called nephrotomes fuse with the pronephric duct. The pronephros elongates and induces the nearby mesoderm, forming the mesonephric (Woffian) duct. The metanephros is the precursor of the mature kidney that originates from the ureteric bud and the metanephric mesoderm (blastema) by 5 weeks of gestation. The interaction between these two components is a reciprocal process, resulting in the formation of a mature kidney. The ureteric bud forms the major and minor calyces, and the collecting tubules while the metanephrogenic blastema develops into the renal tubules and glomeruli. In humans, all of the nephrons are formed by 32 to 36 weeks of gestation. Simultaneously, the lower urinary tract develops from the vesico urethral canal, ureteric bud and mesonephric duct. In utero, ureters deliver urine from the kidney to the bladder, thereby creating amniotic fluid. Transcription factors, extracellular matrix glycoproteins, signaling molecules and receptors are the key players in normal renal development. Many medications (e.g., aminoglycosides, cyclooxygenase inhibitors, substances that affect the renin-angiotensin aldosterone system) also impact renal development by altering the expression of growth factors, matrix regulators or receptors. Thus, tight regulation and coordinated processes are crucial for normal renal development.


Renal, development, induction.

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Article Details

Volume: 10
Issue Number: 2
First Page: 107
Last Page: 114
Page Count: 8
DOI: 10.2174/157339631002140513101950
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