# Cellular and Molecular Mechanisms of COVID-19 Mediated Kidney Injury

> **NIH NIH UH3** · UNIVERSITY OF WASHINGTON · 2020 · $300,384

## Abstract

PROJECT SUMMARY / ABSTRACT
The ongoing coronavirus 2019 (COVID-19) pandemic is caused by severe acute respiratory syndrome
coronavirus 2 (SARS‑CoV‑2), and has led to over one million reported cases, significant morbidity and
mortality, and extensive economic and societal disruption. The development of the disease has shown to lead
to complications kidney failure. It is becoming clear that multiple mechanisms of kidney involvement in COVID-
19 infection are operative. Between 30 and 40% of severely infected COVID-19 patients develop Acute Kidney
Injury with a high proportion requiring dialysis therapy in the Intensive care Unit. Moreover, evidence from
biopsy and autopsy studies is emerging that kidney podocytes, proximal tubular epithelial cells and endothelial
cells may become infected with SARS‑CoV‑2. Emerging data demonstrate that COVID-19 podocyte injury
leads to nephrotic syndrome, proximal tubular involvement leads to acute kidney injury, and endothelial
involvement leads to thrombotic microangiopathy – thus COVID-19 kidney involvement can have protean
clinical manifestations, analogous to the effects of HIV infection on the kidney. No specific treatment is
currently validated for COVID-19 related kidney disease, and understanding the cell-specific molecular
processes associated with COVID-19 in patients with kidney disease and diabetes can have a significant
impact on public health. A better understanding of the mechanism will foster development of effective therapies
beyond the supportive care in the intensive critical care unit, which is already critically important as many of
these patients require dialysis-related therapy. Our group has pioneered the development of `human kidney-
on-a-chip' microphysiological systems (MPS), which recapitulate critical aspects of kidney physiology, assess
the mechanisms and response to injury, and test reparative mechanisms. We will deploy our existing MPS to
understand the cellular and molecular mechanisms of COVID-19 mediated kidney injury, and test therapeutic
strategies to prevent kidney injury and kidney failure due to SARS‑CoV‑2.

## Key facts

- **NIH application ID:** 10204532
- **Project number:** 3UH3TR002158-04S1
- **Recipient organization:** UNIVERSITY OF WASHINGTON
- **Principal Investigator:** Jonathan Himmelfarb
- **Activity code:** UH3 (R01, R21, SBIR, etc.)
- **Funding institute:** NIH
- **Fiscal year:** 2020
- **Award amount:** $300,384
- **Award type:** 3
- **Project period:** 2017-07-25 → 2022-06-30

## Primary source

NIH RePORTER: https://reporter.nih.gov/project-details/10204532

## Citation

> US National Institutes of Health, RePORTER application 10204532, Cellular and Molecular Mechanisms of COVID-19 Mediated Kidney Injury (3UH3TR002158-04S1). Retrieved via AI Analytics 2026-05-27 from https://api.ai-analytics.org/grant/nih/10204532. Licensed CC0.

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