Original Article
Application of 4-parameter model and parallel line assay in biological test statistics for antigens of viral vaccines
Liu Zhengling, Yang Jia, Zhao Heng, Wang Yunfei, Zhao Yong, Yan Jiao, Yuan Mei, Li Yaxian, Xie Zhongping, Hong Chao
Published 2017-06-10
Cite as Int J Biologicals, 2017,40(3): 125-129. DOI: 10.3760/cma.j.issn.1673-4211.2017.03.005
Abstract
ObjectiveTo compare 4-parameter model with parallel line assay method in the application in biological test statistics for antigens of Sabin inactivated poliovirus vaccine (sIPV) and enterovirus 71 (EV71).
MethodsThe 4-parameter model and parallel line assay were methodologically validated using the detection data of sIPV-D antigen and EV71 antigen. Then, both methods were used to calculate the detection result of samples with different antigen content.
ResultsThe 4-parameter model was fit for sIPV-D antigen detection data (coefficient of determination 0.998, residual value ≤0.059), and parallel line analysis was reliable (regression: reference F=727.49, P<0.01, sample F=1 169.44, P<0.01; parallelism: F=0.24, P>0.05). For EV71 antigen, 4-parameter model was appropriate (coefficient of determination 1.000, residual value≤0.025), and parallel line analysis was reliable (regression: reference F=126.63, P<0.01, sample F=192.74, P<0.01; parallelism: F=4.00, P>0.05). There was no significant difference between the calculation results of two methods for different antigen content of sIPV and EV71 (t=0.248-1.023, all P>0.05).
ConclusionBoth 4-parameter model and parallel line assay can be applied in the ELISA detection system of sIPV-D and EV71 antigens.
Key words:
Models, statistical; Viral vaccines; Antigen, viral; Enzyme-linked immunosorbent assay
Contributor Information
Liu Zhengling
Division of Quality Control, Institute of Medical Biology, Chinese Academy of Medical Sciences, Kunming 650106, China
Yang Jia
Zhao Heng
Wang Yunfei
Zhao Yong
Yan Jiao
Yuan Mei
Li Yaxian
Xie Zhongping
Hong Chao