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A plasmid for detecting polycyclic aromatic hydrocarbon chemicals in the environment and its application

A polycyclic aromatic hydrocarbon and environmental detection technology, applied in the fields of molecular biology and environmental biology, can solve the problems of cumbersome process, complicated sample processing, and long time consumption, and achieve the effects of low immunogenicity, wide linear range, and wide infection spectrum

Active Publication Date: 2017-01-25
NANJING MEDICAL UNIV
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  • Abstract
  • Description
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Problems solved by technology

At present, the detection methods of PAHs in the environment are mainly chemical and biological methods: the former such as spectrophotometry and chromatography, the equipment is large and expensive, the sample pretreatment is complicated, and unknown pollutants cannot be detected; the latter such as cell proliferation Experiments, etc., the process is cumbersome, time-consuming, and has high technical requirements for operators, and the above two methods cannot accurately express the human body effects of the environmental pollutants

Method used

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  • A plasmid for detecting polycyclic aromatic hydrocarbon chemicals in the environment and its application
  • A plasmid for detecting polycyclic aromatic hydrocarbon chemicals in the environment and its application
  • A plasmid for detecting polycyclic aromatic hydrocarbon chemicals in the environment and its application

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Embodiment 1

[0054] 1. Preparation of overexpression lentiviral plasmid

[0055] Genomic DNA containing the AHR gene promoter (NM_001621-promoter) was extracted from normal human peripheral blood leukocytes, and human genomic DNA was extracted using the operation method of the Genomic DNA Purification Kit (Tiangen Biochemical, DP318). According to the known human AHR gene promoter sequence, primers at both ends were designed and synthesized: upstream primer: TGGTTAATTAAGGCACTACACTATACTGTATTC, see SEQ ID NO: 2; downstream primer: CGGGCTAGCAACAGAGCGTCGACGGGACTC, see SEQ ID NO: 3. Genomic DNA was used as a template to amplify by conventional PCR reaction, and the amplified product was recovered and purified with an agarose gel DNA recovery kit (Tiangen Biochemical, DP209-03).

[0056] Lentiviral expression vector CV060 (the sequence of elements is MCS-firefly-Luc-Tk-Renilla-Luc), purchased from Shanghai Jikai Gene Chemical Technology Co., Ltd., passed PacI and NheI restriction endonucleases (...

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Abstract

The invention discloses a method for detecting plasmids of polycyclic aromatic hydrocarbons in an environment and an application thereof, and relates to the fields of molecular biology and environmental biotechnology. According to the method provided by the invention, by extracting the promoter of a humanized AHR (Aromatic Hydrocarbon Receptor) gene, using a CV060 plasmid including a firefly luciferase and renilla luciferase reporter gene as a carrier and inserting the AHR gene promoter with a specific sequence, a recombined lentivirus plasmid of a reference internal type dual-luciferase reporter gene including the AHR gene promoter is built. The detection method provided by the invention is good in repeatability, high in sensitivity, reliable in detection result, and simple and convenient to operate, and can be widely applied to the detection of the polycyclic aromatic hydrocarbons in the environment.

Description

[0001] Technical field: [0002] The present invention relates to the fields of molecular biology and environmental biotechnology, in particular to a method for constructing a recombinant plasmid containing a human-derived AHR gene promoter and a dual-luciferase reporter gene, thereby being applied to polycyclic aromatic hydrocarbons in the environment presence and content detection. [0003] Background technique: [0004] Polycyclic Aromatic Hydrocarbons (PAHs for short) refer to a class of hydrocarbons containing two or more benzene rings in their molecules, which mainly come from the cracking and incomplete combustion of organic matter such as coal, petroleum, and wood. There are about 200 known PAHs, which are widely distributed in the environment of human life. Environmental pollution caused by PAHs has attracted more and more attention, and it has become a priority monitoring substance in many countries. In 1976, EPA listed 16 PAHs as priority pollutants. In 1990, 7 of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12N15/867C12Q1/68
Inventor 顾爱华严丽锋吉贵祥赵鹏
Owner NANJING MEDICAL UNIV
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