Fetal rhesus monkey model of obstructive renal dysplasia

Alice F Tarantal, V. K M Han, K. C. Cochrum, A. Mok, M. Dasilva, D. G. Matsell

Research output: Contribution to journalArticle

56 Citations (Scopus)

Abstract

Background. Disorders of kidney development represent a major cause of renal failure and end-stage renal disease in the pediatric population. To understand further the prenatal pathogenesis of obstructive renal dysplasia, a fetal monkey model was developed using ultrasound-guided techniques. Methods. Ureteropelvic obstruction (N = 13) was induced during the early or late second trimester by the injection of purified guluronic alginate spheres. All fetuses were monitored sonographically, and then fetal tissues were removed at varying time points during the second and third trimesters. Results. There was no evidence of oligohydramnios during the course of gestation, and the obstructed kidneys were typically progressively smaller than the contralateral (nonobstructed) kidneys when monitored sonographically over time. Obstructed kidneys displayed most features of renal dysplasia, including numerous cortical cysts of various sizes derived predominantly from collecting ducts and glomeruli. Mesenchymal changes included expansion of both the cortical and medullary interstitium, as well as mesenchymal-myocyte transformation, expressed as pericystic and peritubular fibromuscular collar formation. An important feature of this model was the disruption of normal glomerular development and architecture, associated with significant podocyte apoptosis, evident as early as the prevascularized S-shaped nephron. As in other models, collecting duct cell apoptosis was apparent, particularly in areas of cyst formation and cellular atrophy. Conclusions. These results demonstrate the importance of this nonhuman primate model for exploring the pathophysiology of congenital obstructive uropathy and highlight the potential role of podocyte injury in determining long-term renal function associated with this condition.

Original languageEnglish (US)
Pages (from-to)446-456
Number of pages11
JournalKidney International
Volume59
Issue number2
DOIs
StatePublished - 2001

Fingerprint

Macaca mulatta
Kidney
Podocytes
Second Pregnancy Trimester
Cysts
Fetus
Apoptosis
Oligohydramnios
Nephrons
Third Pregnancy Trimester
Muscle Cells
Primates
Chronic Kidney Failure
Atrophy
Haplorhini
Renal Insufficiency
Pediatrics
Pregnancy
Injections
Wounds and Injuries

Keywords

  • Congenital obstructive uropathy
  • End-stage renal disease
  • Kidney failure
  • Pediatric kidney failure
  • Podocyte injury
  • Ultrasound techniques

ASJC Scopus subject areas

  • Nephrology

Cite this

Tarantal, A. F., Han, V. K. M., Cochrum, K. C., Mok, A., Dasilva, M., & Matsell, D. G. (2001). Fetal rhesus monkey model of obstructive renal dysplasia. Kidney International, 59(2), 446-456. https://doi.org/10.1046/j.1523-1755.2001.059002446.x

Fetal rhesus monkey model of obstructive renal dysplasia. / Tarantal, Alice F; Han, V. K M; Cochrum, K. C.; Mok, A.; Dasilva, M.; Matsell, D. G.

In: Kidney International, Vol. 59, No. 2, 2001, p. 446-456.

Research output: Contribution to journalArticle

Tarantal, AF, Han, VKM, Cochrum, KC, Mok, A, Dasilva, M & Matsell, DG 2001, 'Fetal rhesus monkey model of obstructive renal dysplasia', Kidney International, vol. 59, no. 2, pp. 446-456. https://doi.org/10.1046/j.1523-1755.2001.059002446.x
Tarantal, Alice F ; Han, V. K M ; Cochrum, K. C. ; Mok, A. ; Dasilva, M. ; Matsell, D. G. / Fetal rhesus monkey model of obstructive renal dysplasia. In: Kidney International. 2001 ; Vol. 59, No. 2. pp. 446-456.
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