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Editorial
. 2021 Mar;99(3):498-510.
doi: 10.1016/j.kint.2020.08.039.

Rationale and design of the Kidney Precision Medicine Project

Collaborators, Affiliations
Editorial

Rationale and design of the Kidney Precision Medicine Project

Ian H de Boer et al. Kidney Int. 2021 Mar.

Abstract

Chronic kidney disease (CKD) and acute kidney injury (AKI) are common, heterogeneous, and morbid diseases. Mechanistic characterization of CKD and AKI in patients may facilitate a precision-medicine approach to prevention, diagnosis, and treatment. The Kidney Precision Medicine Project aims to ethically and safely obtain kidney biopsies from participants with CKD or AKI, create a reference kidney atlas, and characterize disease subgroups to stratify patients based on molecular features of disease, clinical characteristics, and associated outcomes. An additional aim is to identify critical cells, pathways, and targets for novel therapies and preventive strategies. This project is a multicenter prospective cohort study of adults with CKD or AKI who undergo a protocol kidney biopsy for research purposes. This investigation focuses on kidney diseases that are most prevalent and therefore substantially burden the public health, including CKD attributed to diabetes or hypertension and AKI attributed to ischemic and toxic injuries. Reference kidney tissues (for example, living-donor kidney biopsies) will also be evaluated. Traditional and digital pathology will be combined with transcriptomic, proteomic, and metabolomic analysis of the kidney tissue as well as deep clinical phenotyping for supervised and unsupervised subgroup analysis and systems biology analysis. Participants will be followed prospectively for 10 years to ascertain clinical outcomes. Cell types, locations, and functions will be characterized in health and disease in an open, searchable, online kidney tissue atlas. All data from the Kidney Precision Medicine Project will be made readily available for broad use by scientists, clinicians, and patients.

Keywords: acute kidney injury; chronic kidney disease; diabetes; hypertension; precision medicine.

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Figures

Figure 1.
Figure 1.. In the Kidney Precision Medicine Project, kidney biopsy tissues will be interrogated with multiple levels of omics technologies, and results will be integrated with digital pathology, clinical characteristics and outcomes to create a reference kidney atlas, develop mechanism-based disease subtypes, and identify critical cells, pathways, and targets for novel therapies.
CKD = chronic kidney disease AKI = acute kidney injury.
Figure 2.
Figure 2.. Kidney Precision Medicine Project tissue triage and interrogation schematic.
Kidney biopsy tissues will be processed for local clinical pathology review and remote research interrogation according to a detailed, standardized protocol. KPMP = Kidney Precision Medicine Project; EM = electron microscopy; IF = immunofluorescence; LM = light microscopy; OCT = optimal cutting temperature compound; N2 = nitrogen; ISH = in-situ hybridization’ MALD-MSI = matrix-assisted laser desorption ionization mass spectrometry imaging; LC-MS/MS = liquid chromatography-mass spectrometry.
Figure 3.
Figure 3.. Vision for a kidney tissue atlas.
The Kidney Precision Medicine Project will integrate digital pathology, omics data, and clinical data using common ontologies, making raw data, curated maps, and analysis and visualization tools widely available to clinical and research communities.

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