New approaches for characterization of the genetic stability of vaccine cell lines

The genetic stability of cell lines is a critical analytical attribute required to demonstrate the quality of cells over time. During cell passage, mutations can arise in the genomic DNA, potentially leading to changes in the final vaccine product. The identity and integrity of master cell banks, ex...

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Bibliographic Details
Main Authors: Siemon Ng, Lucy Gisonni-Lex, Ali Azizi
Format: Article
Language:English
Published: Taylor & Francis Group 2017-07-01
Series:Human Vaccines & Immunotherapeutics
Subjects:
Online Access:http://dx.doi.org/10.1080/21645515.2017.1295191
Description
Summary:The genetic stability of cell lines is a critical analytical attribute required to demonstrate the quality of cells over time. During cell passage, mutations can arise in the genomic DNA, potentially leading to changes in the final vaccine product. The identity and integrity of master cell banks, extended cell banks, complementing cell lines or recombinant cell lines expressing transgenes has to be tested throughout the production process by the vaccine manufacturer. Over the past few years, the traditional methods for evaluation of genetic stability have been replaced with molecular approaches including quantitative PCR, digital PCR and high throughput sequencing. However, these molecular-based approaches are used in research laboratories and not within a GMP-compliant environment. In this article, we briefly discuss some opportunities and challenges in characterization of the genetic stability of vaccine cell lines with these molecular-based approaches.
ISSN:2164-5515
2164-554X