Isolation of Glomeruli and In Vivo Labeling of Glomerular Cell Surface Proteins
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Isolation of Glomeruli and In Vivo Labeling of Glomerular Cell Surface Proteins. / Königshausen, Eva; Potthoff, Sebastian A; Haase, Raphael; Meyer-Schwesinger, Catherine; Kaufmann, Ernest; Rump, L Christian; Stegbauer, Johannes; Sellin, Lorenz; Quack, Ivo; Woznowski, Magdalena.
In: JOVE-J VIS EXP, No. 143, 18.01.2019.Research output: SCORING: Contribution to journal › SCORING: Journal article › Research › peer-review
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TY - JOUR
T1 - Isolation of Glomeruli and In Vivo Labeling of Glomerular Cell Surface Proteins
AU - Königshausen, Eva
AU - Potthoff, Sebastian A
AU - Haase, Raphael
AU - Meyer-Schwesinger, Catherine
AU - Kaufmann, Ernest
AU - Rump, L Christian
AU - Stegbauer, Johannes
AU - Sellin, Lorenz
AU - Quack, Ivo
AU - Woznowski, Magdalena
PY - 2019/1/18
Y1 - 2019/1/18
N2 - Proteinuria results from the disruption of the glomerular filter that is composed of the fenestrated endothelium, glomerular basement membrane, and podocytes with their slit diaphragms. The delicate structure of the glomerular filter, especially the slit diaphragm, relies on the interplay of diverse cell surface proteins. Studying these cell surface proteins has so far been limited to in vitro studies or histologic analysis. Here, we present a murine in vivo biotinylation labeling method, which enables the study of glomerular cell surface proteins under physiologic and pathophysiologic conditions. This protocol contains information on how to perfuse mouse kidneys, isolate glomeruli, and perform endogenous immunoprecipitation of a protein of interest. Semi-quantitation of glomerular cell surface abundance is readily available with this novel method, and all proteins accessible to biotin perfusion and immunoprecipitation can be studied. In addition, isolation of glomeruli with or without biotinylation enables further analysis of glomerular RNA and protein as well as primary glomerular cell culture (i.e., primary podocyte cell culture).
AB - Proteinuria results from the disruption of the glomerular filter that is composed of the fenestrated endothelium, glomerular basement membrane, and podocytes with their slit diaphragms. The delicate structure of the glomerular filter, especially the slit diaphragm, relies on the interplay of diverse cell surface proteins. Studying these cell surface proteins has so far been limited to in vitro studies or histologic analysis. Here, we present a murine in vivo biotinylation labeling method, which enables the study of glomerular cell surface proteins under physiologic and pathophysiologic conditions. This protocol contains information on how to perfuse mouse kidneys, isolate glomeruli, and perform endogenous immunoprecipitation of a protein of interest. Semi-quantitation of glomerular cell surface abundance is readily available with this novel method, and all proteins accessible to biotin perfusion and immunoprecipitation can be studied. In addition, isolation of glomeruli with or without biotinylation enables further analysis of glomerular RNA and protein as well as primary glomerular cell culture (i.e., primary podocyte cell culture).
KW - Journal Article
KW - Video-Audio Media
U2 - 10.3791/58542
DO - 10.3791/58542
M3 - SCORING: Journal article
C2 - 30735184
JO - JOVE-J VIS EXP
JF - JOVE-J VIS EXP
SN - 1940-087X
IS - 143
ER -