Assessing the significance of reverse transcriptase activity in chick cell-derived vaccines

被引：31

作者：

Robertson, JS ^{[1
]}

Nicolson, C ^{[1
]}

Riley, AM ^{[1
]}

Bentley, M ^{[1
]}

Dunn, G ^{[1
]}

Corcoran, T ^{[1
]}

Schild, GC ^{[1
]}

Minor, P ^{[1
]}

机构：

[1] Natl Inst Biol Stand & Controls, Potters Bar EN6 3QG, Herts, England

来源：

BIOLOGICALS | 1997年 / 25卷 / 04期

关键词：

D O I：

10.1006/biol.1997.0111

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

A recent publication reported the detection of low levels of the enzyme reverse transcriptase (RTase) in live viral vaccines prepared in chick embryo cells. The enzyme was detected using an assay with greatly increased sensitivity compared to more conventional methods. The authors have confirmed the observation of RTase activity and demonstrate that the activity is not dependent on the production of viral vaccines in chick cells but is present ubiquitously in chick embryonic fluids. The authors have also been unable to transmit the RTase activity from chick cells to a wide variety of cells of human, monkey, rabbit and turkey origin, suggesting that the activity is not associated with an avian agent capable of infecting these cells. it is concluded that the data available present no cause for concern over the safety of vaccines derived in chick cells and current WHO requirements for such vaccines remain appropriate. (C) 1997 The International Association of Biological Standardization.

引用

页码：403 / 414

页数：12

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