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Application of digital PCR technology in the precise molecular diagnosis: opportunities and challenges
Xie Fengxin, Jin Weidong, Tian Huiyan, He Haiyan, Fu Weiling, Zhang Yang
Published 2022-03-19
Cite as Chin J Lab Med, 2022, 45(3): 214-219. DOI: 10.3760/cma.j.cn114452-20210903-00559
Abstract
Digital polymerase chain reaction (dPCR) is an absolute quantitative technique that has been rapidly developed in recent years. This technique assigns the reaction system containing DNA template to a large number of independent reaction units for PCR, and calculates the DNA copy number according to the Poisson distribution and statistical positive signals. In contrast to conventional qPCR, dPCR does not depend on amplification curves, is not affected by amplification efficiency, thus has high accuracy and repeatability, and can achieve the absolute quantification. This article reviews the development history of dPCR and its application in molecular diagnosis, tumor liquid biopsy and prenatal diagnosis of infectious diseases, and looks forward to the application prospect of this technology.
Key words:
Digital polymerase chain reaction; Pathogenic microorganisms; Neoplasms; Clinical laboratory techniques
Contributor Information
Xie Fengxin
Department of Laboratory Medicine, First Affiliated Hospital of Army Military Medical University, Chongqing 400038, China
Jin Weidong
Department of Laboratory Medicine, First Affiliated Hospital of Army Military Medical University, Chongqing 400038, China
Tian Huiyan
Department of Laboratory Medicine, First Affiliated Hospital of Army Military Medical University, Chongqing 400038, China
He Haiyan
Department of Laboratory Medicine, First Affiliated Hospital of Army Military Medical University, Chongqing 400038, China
Fu Weiling
Department of Laboratory Medicine, First Affiliated Hospital of Army Military Medical University, Chongqing 400038, China
Zhang Yang
Department of Laboratory Medicine, Chongqing University Cancer Hospital, Chongqing 400030, China