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Updated: May 28, 2026
A Comprehensive Pipeline to Assess the Efficiency of Human Erythropoiesis In Vitro and Ex Vivo
Published on: January 10, 2025
Validation of model virus removal and inactivation capacity of an erythropoietin purification process
Mayté Pérez1, Elias Rodríguez, María Rodríguez
1Erythropoietin Production Department, Center for Genetic Engineering and Biotechnology, Ave 31/ 158 and 190 Cubanacán, Playa, Havana, Cuba.
Abstract:
Human erythropoietin (hEpo) production requires mammalian cells able to make complex post-translational modifications to guaranty its biological activity. As mammalian cell can be reservoir of pathogenic viruses and several animal origin components are usually used in the cultivation of mammalian cells, hEpo contamination with viruses is something of great concern. As consequence, this study investigated the viral removal and inactivation capacity of a recombinant-hEpo (rec-hEpo) purification process. Canine parvovirus, Human poliovirus type-2, Bovine viral diarrhea virus and Human immunodeficiency virus type-1 were used for measuring process viral removal and inactivation capacities. In conclusion, this study corroborated that the assessed rec-hEpo purification process has enough capacity (5.0-19.4 Logs) for removing and inactivating these model viruses and sodium hydroxide demonstrated to be a robust sanitization solution for chromatography columns (5.0 (PV-2)-6.7 (CPV) Logs).
Insights
This study assessed the viral removal and inactivation capabilities of a recombinant human erythropoietin (rec-hEpo) purification process. The process effectively removed and inactivated model viruses, ensuring the safety of rec-hEpo production.
Area of Science:
- Biotechnology
- Viral Safety
- Mammalian Cell Culture
Background:
- Human erythropoietin (hEpo) requires mammalian cell post-translational modifications for biological activity.
- Mammalian cells can harbor viruses, and animal-derived components in cell culture pose contamination risks.
- Ensuring viral safety in recombinant protein production is critical.
Purpose of the Study:
- To evaluate the viral removal and inactivation capacity of a recombinant hEpo (rec-hEpo) purification process.
- To assess the effectiveness of sodium hydroxide for chromatography column sanitization.
Main Methods:
- Infecting the rec-hEpo purification process with model viruses: Canine parvovirus, Human poliovirus type-2, Bovine viral diarrhea virus, and Human immunodeficiency virus type-1.
- Quantifying viral clearance and inactivation through process steps.
- Evaluating sodium hydroxide efficacy for column sanitization.
Main Results:
- The rec-hEpo purification process demonstrated significant viral removal and inactivation capacities, ranging from 5.0 to 19.4 Log values.
- Sodium hydroxide proved to be a robust sanitization solution for chromatography columns, achieving 5.0 to 6.7 Log reduction for model viruses.
Conclusions:
- The assessed rec-hEpo purification process provides robust viral safety.
- The purification process effectively mitigates risks associated with viral contamination in rec-hEpo production.
- Sodium hydroxide is a validated and effective sanitization agent for chromatography columns in this process.
