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Updated: Jun 28, 2025

siRNA Electroporation to Modulate Autophagy in Herpes Simplex Virus Type 1-Infected Monocyte-Derived Dendritic Cells
Published on: October 28, 2019
Deregulated expression of autophagy genes; PIK3C3 and RAB7A in COVID-19 patients
1Clinical and Chemical Pathology Department, Faculty of Medicine, Alexandria University, Egypt.
Background:
The role of autophagy in coronaviruses infection and replication has a lot of debate. Autophagy involves the catalytic breakdown of intracellular components to be subsequently recycled by the lysosome. The aim of the study was to evaluate autophagy genes; PIK3C3 and RAB7A expressions in COVID-19 patients, and identify if PIK3C3 and RAB7A can be used as markers for monitoring COVID-19 patients.
Methods:
A case-control study was carried out on 50 patients and 50 healthy controls. Genes expression was performed using quantitative real-time polymerase chain reaction.
Results:
Compared to controls, PIK3C3 and RAB7A gene expression levels were significantly lower in patients (p < 0.001) with approximately with 9.4 and 2.3 decreased fold in PIK3C3 and RAB7A respectively. The ROC curve of PIK3C3 and RAB7A expressions showed sensitivity of 84 % and 74 % and specificity of 98 % and 78 % respectively. There was a positive correlation between PIK3C3 expression and WBCs, absolute neutrophil count, interleukin-6, D-dimer, and ALT among patients and between RAB7A expression and WBCs, CRP, IL-6, D-dimer and ALT in patients.
Conclusions:
The study showed reduction of PIK3C3 and RAB7A expressions in COVID-19 patients. However, further studies are recommended to clarify their roles in the disease pathogenies as autophagy genes.
Insights
Autophagy genes PIK3C3 and RAB7A expression were significantly reduced in COVID-19 patients. Lower expression of these autophagy markers may aid in monitoring disease progression.
Area of Science:
- Molecular Biology
- Immunology
- Virology
Background:
- Autophagy's role in coronavirus infection and replication is debated.
- Autophagy is a cellular process involving lysosomal breakdown and recycling of intracellular components.
- Investigating autophagy gene expression in COVID-19 is crucial for understanding disease mechanisms.
Purpose of the Study:
- To evaluate the expression of autophagy genes PIK3C3 and RAB7A in COVID-19 patients.
- To determine if PIK3C3 and RAB7A can serve as biomarkers for monitoring COVID-19 patients.
Main Methods:
- A case-control study involving 50 COVID-19 patients and 50 healthy controls.
- Quantitative real-time polymerase chain reaction (qRT-PCR) was used to measure gene expression levels.
Main Results:
- PIK3C3 and RAB7A gene expression were significantly lower in COVID-19 patients compared to controls (p < 0.001).
- PIK3C3 and RAB7A showed high sensitivity and specificity as potential biomarkers.
- Gene expression correlated positively with inflammatory markers (WBCs, IL-6, CRP) and clinical indicators (neutrophils, D-dimer, ALT).
Conclusions:
- COVID-19 patients exhibit reduced expression of PIK3C3 and RAB7A.
- Further research is recommended to elucidate the specific roles of these autophagy genes in COVID-19 pathogenesis.
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