Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Digital PCR reagent kit and detection method for quantitative detection of EB virus nucleic acid

A technology for quantitative detection of Epstein-Barr virus, applied in the direction of microorganism-based methods, biochemical equipment and methods, and microorganism measurement/inspection, can solve inaccurate detection results, uncertain detection results whether the virus is positive, sensitivity and Poor specificity and other issues, to achieve high tolerance, avoid deviation, and easy standardization

Pending Publication Date: 2020-01-14
苏州云泰生物医药科技有限公司 +1
View PDF3 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional detection of Epstein-Barr virus-related antibodies is the most commonly used method for diagnosis and monitoring of patients' conditions, but its sensitivity and specificity are poor
The current fluorescent quantitative PCR can only perform relative quantification of the original nucleic acid, and needs to rely on the standard curve or reference gene to determine the amount of nucleic acid, and there are uncertain test results on whether the virus is positive, resulting in multiple tests or test results Inaccurate

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Digital PCR reagent kit and detection method for quantitative detection of EB virus nucleic acid
  • Digital PCR reagent kit and detection method for quantitative detection of EB virus nucleic acid
  • Digital PCR reagent kit and detection method for quantitative detection of EB virus nucleic acid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] Example 1: Primer Screening

[0070] 1. Design of primers and probes: refer to relevant domestic and foreign literature, select EBV-specific conserved sequences as target detection fragments, and pass through the National Center for Biotechnology Information (NCBI, http: / / www.ncbi.nlm.nih.gov), The specific conserved sequence of Epstein-Barr virus was obtained, and the professional design software BeaconDesigner 7.0 was used to design specific primers and probes suitable for ddPCR.

[0071] This example gives the process of screening the best primers, and selects several pairs of alternative primers designed by software for screening, and the alternative primers are shown in Table 5.

[0072] table 5

[0073]

[0074] 2. Screening of primers

[0075] 2.1 The primers are randomly matched into six pairs: F1R1, F1R2, F2R1, F2R2, F3R1, F3R2;

[0076] Specific probe P: the fluorescent reporter gene at the 5' end is FAM, and the quencher group at the 3' end is BHQ.

[...

Embodiment 2

[0081] Embodiment 2: kit composition

[0082] The specific composition of the kit is shown in Table 6:

[0083] Table 6

[0084]

Embodiment 3

[0085] Embodiment 3: Specificity test

[0086] 1. Materials: serum samples from patients infected with hepatitis B virus, human cytomegalovirus, and Epstein-Barr virus and healthy people.

[0087] 2. Method: Use a commercial extraction kit to extract the serum samples of patients infected with hepatitis B virus, human cytomegalovirus, and Epstein-Barr virus, and the serum samples of healthy people to obtain DNA templates, and use the kit of the embodiment of the present invention to obtain DNA templates. Perform ddPCR amplification detection to observe whether the kit has non-specific reactions.

[0088] 3. Results: DNA from serum samples from patients infected with hepatitis B virus, human cytomegalovirus, and Epstein-Barr virus and healthy people was amplified by a PCR instrument, detected by a droplet reader, and automatically read by QuantaSoft software. Take and analyze. The specific experimental results are shown in Table 7.

[0089] Table 7

[0090] name ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention belongs to the field of detection of virus nucleic acid, and particularly relates to a digital PCR reagent kit and detection method for quantitative detection of EB virus nucleic acid. The reagent kit contains digital PCR reaction liquid and a quality control product, wherein the digital PCR reaction liquid contains a primer and probe for detecting EB virus nucleic acid, and comprises a forward primer as shown in SEQID NO:1, a reverse primer as shown in SEQID NO:2 and a probe as shown in SEQID NO:3. Fluorophore is marked at two ends of the probe. The reagent kit and the detectionmethod can realize absolute quantitation of nucleic acid molecules, so as to avoid deviation caused by PCR amplification efficiency variance, and the reagent kit and the detection method have high accuracy, sensitivity and repeatability, and easily realize standardization.

Description

technical field [0001] The invention belongs to the field of virus nucleic acid detection, and in particular relates to a digital PCR kit and a detection method for quantitative detection of EB virus nucleic acid. Background technique [0002] Human beings are the only natural host of Epstein-Barr virus (EBV), and the infection rate of EB virus in the world exceeds 90%. Primary infection usually occurs in infancy and is asymptomatic, presenting as an occult infection; however, infectious mononucleosis may result if infection occurs in adolescents or adults. According to reports, more than 95% of the population in my country has been infected with EBV at the age of 3-5. After primary infection, the virus can persist for a long time, showing a latent infection state, which is asymptomatic in most cases. Epstein-Barr virus is mainly transmitted by saliva, but it has also been reported to be transmitted by blood and sexual activity. There are two forms of Epstein-Barr virus-i...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C12Q1/70C12Q1/6851C12N15/11C12R1/93
CPCC12Q1/705C12Q1/6851C12Q2531/113C12Q2563/107C12Q2563/159
Inventor 严晓锋刘凤麟熊慧
Owner 苏州云泰生物医药科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products