Abstract
Background
Since 2019, COVID-19 and its mutants have been among the fiercest epidemic viruses. Coronavirus is still affecting the world and will continue through its various mutants, the closest example of which is the XEC mutant. Vaccines are currently available to prevent coronavirus infections. However, the currently approved treatments after infection, especially for severely infected patients, are still limited, and they are not suitable for everyone. Many studies have investigated the ability of furin to repair coronavirus viral proteins, and other studies have shown how important miRNAs are for controlling gene expression.
Aim of work
This work aims to clarify the role of furin and the possibility of alleviating the burden of viral infection with COVID-19 and its mutations via effects on miR-20b and miR-106a.
Patients and methods
We collected blood samples from 40 controls and 50 patients. Each patient provided approximately 3 ml of blood, which was separated for measuring furin by ELISA and extracting RNA for real-time PCR for the relative quantification of miRNAs.
Results
The serum levels of Furin and miR-106 were considerably greater in the COVID-19 group than in the control group; however, the level of miR-20b was considerably greater in the control group than in the patients group.
Conclusion
These data suggest that furin and miR-20b concentrations could be beneficial in therapeutic approaches against COVID-19.


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Data availability
No datasets were generated or analyzed during the current study.
Abbreviations
- AST:
-
Aspartate transaminase
- ACE2:
-
Angiotensin-converting enzyme 2
- ALT:
-
Alanine transaminase
- CSE:
-
Chondroitin sulfate
- CoV:
-
Coronavirus
- COVID-19:
-
Coronavirus disease 2019
- CO-RADS:
-
Coronavirus Disease 2019 (COVID-19) Reporting and Data System
- CXR:
-
Chest X-ray
- CSD:
-
Chondroitin sulfate D
- CRP:
-
C-reactive protein
- CT:
-
Computed tomography
- CKD:
-
Chronic kidney disease
- DBP:
-
Diastolic blood pressure
- DM:
-
Diabetes mellitus
- GGO:
-
Ground-glass opacity (radiological findings on CT)
- LDH:
-
Lactate dehydrogenase
- ICU:
-
Intensive care unit
- HR:
-
Heart rate
- GCS:
-
Glasgow Coma Scale
- PT:
-
Prothrombin time
- RA:
-
Room Air
- SARS-CoV-2:
-
Severe acute respiratory failure syndrome-related coronavirus 2
- SARS-CoV:
-
Severe acute respiratory failure syndrome-related coronavirus
- SBP:
-
Systolic blood pressure
- RSNA:
-
Radiological Society of North America
- S2:
-
Subunit 2
- SGP:
-
Spike glycoprotein
- S1:
-
Subunit 1
- TSS:
-
Toxic shock syndrome
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OG contributed to the conception, design, and provision of the study materials. All authors (IM, AE, and OG) provided administrative support. All authors (IM, AE, and OG) collected and assembled the data, interpreted them, and wrote the manuscript. All authors (IM, AE, and OG) approved the final manuscript. All authors (IM, AE, and OG) have read and approved the final manuscript.
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This study was conducted in accordance with the principles of the Declaration of Helsinki. Approval was granted by the Research Ethics Committee (REC) of Cairo University, Faculty of Medicine (Kasr Alainy), as it was approved with the ethical approval number under Code (MS-444-2021).
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Mahmoud, I., Ahmed, A.E. & Shaker, O. Role of furin in the severity of COVID-19 infection via effects on miR-20b and miR-106a. Mol Biol Rep 52, 320 (2025). https://doi.org/10.1007/s11033-025-10340-6
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DOI: https://doi.org/10.1007/s11033-025-10340-6