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In utero intra-cardiac tomato-lectin injections on mouse embryos to gauge renal blood flow.
Rymer, Christopher C; Sims-Lucas, Sunder.
Afiliação
  • Rymer CC; Rangos Research Center, Children's Hospital of Pittsburgh of UPMC; Division of Nephrology, Department of Pediatrics, University of Pittsburgh School of Medicine.
  • Sims-Lucas S; Rangos Research Center, Children's Hospital of Pittsburgh of UPMC; Division of Nephrology, Department of Pediatrics, University of Pittsburgh School of Medicine; simslucass@upmc.edu.
J Vis Exp ; (96)2015 Feb 04.
Article em En | MEDLINE | ID: mdl-25741893
ABSTRACT
The formation and perfusion of developing renal blood vessels (apart from glomeruli) are greatly understudied. As vasculature develops via angiogenesis (which is the branching off of major vessels) and vasculogenesis (de novo vessel formation), perfusion mapping techniques such as resin casts, in vivo ultrasound imaging, and micro-dissection have been limited in demonstrating the intimate relationships between these two processes and developing renal structures within the embryo. Here, we describe the procedure of in utero intra-cardiac ultrasound-guided FITC-labeled tomato lectin microinjections on mouse embryos to gauge the ontogeny of renal perfusion. Tomato lectin (TL) was perfused throughout the embryo and kidneys harvested. Tissues were co-stained for various kidney structures including nephron progenitors, nephron structures, ureteric epithelium, and vasculature. Starting at E13.5 large caliber vessels were perfused, however peripheral vessels remained unperfused. By E15.5 and E17.5, small peripheral vessels as well as glomeruli started to become perfused. This experimental technique is critical for studying the role of vasculature and blood flow during embryonic development.
Assuntos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Circulação Renal / Lectinas de Plantas / Rim Limite: Animals / Pregnancy Idioma: En Revista: J Vis Exp Ano de publicação: 2015 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Circulação Renal / Lectinas de Plantas / Rim Limite: Animals / Pregnancy Idioma: En Revista: J Vis Exp Ano de publicação: 2015 Tipo de documento: Article