Back to Search Start Over

Near-Single-Cell Proteomics Profiling of the Proximal Tubular and Glomerulus of the Normal Human Kidney

Authors :
Tara K. Sigdel
Paul D. Piehowski
Sudeshna Roy
Juliane Liberto
Joshua R. Hansen
Adam C. Swensen
Rui Zhao
Ying Zhu
Priyanka Rashmi
Andrew Schroeder
Izabella Damm
Swastika Sur
Jinghui Luo
Yingbao Yang
Wei-Jun Qian
Minnie M. Sarwal
The Kidney Precision Medicine Project (KPMP) Consortium
Source :
Frontiers in Medicine, Vol 7 (2020)
Publication Year :
2020
Publisher :
Frontiers Media S.A., 2020.

Abstract

Molecular assessments at the single cell level can accelerate biological research by providing detailed assessments of cellular organization and tissue heterogeneity in both disease and health. The human kidney has complex multi-cellular states with varying functionality, much of which can now be completely harnessed with recent technological advances in tissue proteomics at a near single-cell level. We discuss the foundational steps in the first application of this mass spectrometry (MS) based proteomics method for analysis of sub-sections of the normal human kidney, as part of the Kidney Precision Medicine Project (KPMP). Using ~30–40 laser captured micro-dissected kidney cells, we identified more than 2,500 human proteins, with specificity to the proximal tubular (PT; n = 25 proteins) and glomerular (Glom; n = 67 proteins) regions of the kidney and their unique metabolic functions. This pilot study provides the roadmap for application of our near-single-cell proteomics workflow for analysis of other renal micro-compartments, on a larger scale, to unravel perturbations of renal sub-cellular function in the normal kidney as well as different etiologies of acute and chronic kidney disease.

Details

Language :
English
ISSN :
2296858X
Volume :
7
Database :
Directory of Open Access Journals
Journal :
Frontiers in Medicine
Publication Type :
Academic Journal
Accession number :
edsdoj.3732ec0f49974b1fabd73c81171d8162
Document Type :
article
Full Text :
https://doi.org/10.3389/fmed.2020.00499