Study Examines the Effects of COVID-19 on Human Kidney Cells

American Society of Nephrology (ASN)

Highlights

  • The virus that causes COVID-19 can infect and replicate in human kidney cells, but this does not typically lead to cell death.
  • Kidney cells that already have features of injury may be more easily infected and develop additional injury.

Newswise — Washington, DC (June 10, 2021) — Researchers have studied human kidney cells in the lab to examine the effects of COVID-19 on kidney health. The findings appear in an upcoming issue of JASN.

Many individuals who develop COVID-19 also experience kidney damage, but it’s unclear if this is a direct result of viral infection or a consequence of another condition or the body’s response to the infection. To investigate, a team led by Benjamin Dekel, MD, PhD (Sheba Medical Center, in Israel) cultivated human kidney cells in lab dishes and infected them with the virus that causes COVID-19.

The researchers found that although the virus that causes COVID-19 could enter, infect, and replicate in human adult kidney cells, this did not typically lead to cell death. Prior to infection, the cells contained high levels of interferon signaling molecules, and the infection stimulated an inflammatory response that increased these molecules. In contrast, infection of kidney cells deficient in such molecules resulted in cell death, suggesting a protective effect.  

The cells in these experiments were grown as a three-dimensional spheroid that imitates the healthy kidney or as a two-dimensional layer that mimics the cells of an acutely injured kidney. Cells that mimicked an acutely injured kidney were more prone to infection and additional injury but not cell death.

“The data indicate that it is unlikely that the virus is a primary cause of acute kidney injury seen in COVID-19 patients. It implies that if such injury takes place in the kidney by any cause, the virus might jump on the wagon to intensify it. Therefore, if we’re able to limit the common scenario of acute kidney injury in the first place, then there might be the possibility to minimize potential damage caused by the virus,” Dr. Dekel explained.

Study co-authors from the Sheba Medical Center and the Israel Institute for Biological Research include Dorit Omer, PhD, Oren Pleniceanu, MD, PhD, Yehudit Gnatek, MSc, Michael Namestnikov, Osnat Cohen-Zontag, PhD, Sanja Goldberg, PhD, Yehudit Eden Friedman, MD, Nehemya Friedman, PhD, Michal Mandelboim, PhD, Einat B. Vitner, PhD, Hagit Achdout, PhD, Roy Avraham, PhD, Eran Zahavy, PhD, Tomer Israely, PhD, and Haim Mayan, MD.

Disclosures:  Dr. Dekel is a co-founder and shareholder at KidneyCure Ltd.

The article, titled “Human Kidney Spheroids and Monolayers Provide Insights into SARS-CoV-2 Renal Interactions,” will appear online at http://jasn.asnjournals.org/ on June 10, 2021, doi: 10.1681/ASN.2020111546.

The content of this article does not reflect the views or opinions of The American Society of Nephrology (ASN). Responsibility for the information and views expressed therein lies entirely with the authors. ASN does not offer medical advice. All content in ASN publications is for informational purposes only, and is not intended to cover all possible uses, directions, precautions, drug interactions, or adverse effects. This content should not be used during a medical emergency or for the diagnosis or treatment of any medical condition. Please consult your doctor or other qualified health care provider if you have any questions about a medical condition, or before taking any drug, changing your diet or commencing or discontinuing any course of treatment. Do not ignore or delay obtaining professional medical advice because of information accessed through ASN. Call 911 or your doctor for all medical emergencies.

Since 1966, ASN has been leading the fight to prevent, treat, and cure kidney diseases throughout the world by educating health professionals and scientists, advancing research and innovation, communicating new knowledge, and advocating for the highest quality care for patients. ASN has more than 21,000 members representing 131 countries. For more information, visit www.asn-online.org.

 

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