Novel therapeutic approach against severe COVID-19 in males
Enzyme in hormone metabolism identified as a potential therapeutic target
In this study, the interdisciplinary research team analyzed genetic data obtained from 2,866 COVID-19 patients and identified a mutation in the CYP19A1 gene that is associated with an increased risk for hospitalization in male patients. CYP19A1 plays a key role in testosterone metabolism. Lung samples analyzed from deceased COVID-19 patients also showed increased expression of the CYP19A1 gene in male patients compared to female patients. These findings suggest that this gene is involved in sex-differences observed in COVID-19 outcome.
"This collaborative work stresses the importance of host genetics in understanding molecular mechanisms of severity and treatment of viral disorders", says Professor Alessandra Renieri of the University of Siena who provided the genetic data of the large COVID-19 cohort.
Preclinical studies in animal models confirmed these findings. Treatment of SARS-CoV-2-infected animals with the aromatase inhibitor letrozole improved long-term lung function and restored hormonal balance, particularly in male animals. This suggests that aromatase inhibitors may provide a promising therapeutic strategy for the treatment of male COVID-19 patients.
Professor Gülşah Gabriel confirms the importance of international and interdisciplinary collaboration and highlights, "Our collaborative findings may form a basis for individualized therapeutic strategies against COVID-19".
Original publication
Stephanie Stanelle-Bertram, Sebastian Beck, Nancy Kouassi Mounogou, Berfin Schaumburg, Fabian Stoll, Amirah Al Jawazneh, Zoé Schmal, Tian Bai, Martin Zickler, Georg Beythien, Kathrin Becker, et al.; "GEN-COVID Multicenter Study Group, Alessandra Renieri and Gülsah Gabriel. CYP19A1 mediates severe SARS-CoV-2 disease outcome in males."; Cell Reports Medicine (2023).
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Original publication
Stephanie Stanelle-Bertram, Sebastian Beck, Nancy Kouassi Mounogou, Berfin Schaumburg, Fabian Stoll, Amirah Al Jawazneh, Zoé Schmal, Tian Bai, Martin Zickler, Georg Beythien, Kathrin Becker, et al.; "GEN-COVID Multicenter Study Group, Alessandra Renieri and Gülsah Gabriel. CYP19A1 mediates severe SARS-CoV-2 disease outcome in males."; Cell Reports Medicine (2023).
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