Hybridoma cell strain E secreting anti-glibenclamide monoclonal antibody and application thereof

A hybridoma cell line, monoclonal antibody technology, applied in analytical materials, biochemical equipment and methods, instruments, etc., can solve the problem of long experimental period, complex processing process, production and use of glibenclamide food additives, and import and export trade. Food hygiene monitoring work is difficult and other problems, to achieve the effect of good specificity and good detection sensitivity

Inactive Publication Date: 2019-05-31
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the sample pretreatment process of these methods is complicated and the experimental cycle is long, which is not suitable for the rapid detection of a large number of samples.
However, the detection standard and determination method of glyburide have not been established in China, which brings great difficulties to the production and use of glibenclamide food additives, import and export trade, and food hygiene monitoring.

Method used

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  • Hybridoma cell strain E secreting anti-glibenclamide monoclonal antibody and application thereof
  • Hybridoma cell strain E secreting anti-glibenclamide monoclonal antibody and application thereof

Examples

Experimental program
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Embodiment 1

[0023] Embodiment 1 Preparation of hybridoma cell line E

[0024] (1) Synthesis of complete antigen: weigh 3.6 mg of glibenclamide (the molar ratio of glibenclamide to keyhole limpet hemocyanin (KLH) is 6000:1), 2.5 mg of N-hydroxysuccinimide (NHS) , dissolved in 300 μL N,N-dimethylformamide (DMF), stirred at room temperature for 10 minutes; then weighed 4.2 mg 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride Salt (EDC), fully dissolved in 100 μL DMF, was added to the glibenclamide solution, and stirred at room temperature for 6-8 hours (referred to as solution A). Take 6mg of KLH and dissolve it in 2mL of 0.01M borate buffer solution (BB, pH=8.6) (referred to as solution B). Then slowly add solution A to solution B drop by drop, and react overnight at room temperature; then dialyze with 0.01M PBS solution to remove unreacted small molecule hapten to obtain the complete antigen glibenclamide-KLH, and pass the ultraviolet absorption scanning method conduct identifi...

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Abstract

The invention provides a hybridoma cell strain E secreting an anti-glibenclamide monoclonal antibody and application thereof, and belongs to the field of food safety immunodetection. The hybridoma cell strain E secreting the anti-glibenclamide monoclonal antibody is deposited in CGMCC, the common microbiology center of the China Microbial Culture Collection Management Committee, and is classifiedas a monoclonal cell strain, the deposit date is May 24, 2018, and the deposit number is CGMCC No.17305. According to the hybridoma cell strain E, a complete antigen of glibenclamide and an equal amount of Freund's adjuvant are mixed and emulsified, and immunization BALB / c mice are subjected to subcutaneous multiple point injection atbacksand necks to finally obtain the hybridoma cell strain E secreting the anti-glibenclamide monoclonal antibody. The monoclonal antibody secreted by the cell strain has good specificity and detection sensitivity (IC50 value of 0.8 ng / mL) for the glibenclamide,can detect the residual amount of the glibenclamide in health foods, provides raw materials for the immunodetection of glibenclamide residues in the foods, and has a practical application value.

Description

technical field [0001] The invention relates to a hybridoma cell line No. E secreting anti-glibenclamide monoclonal antibody and its application, which belongs to the field of food safety immune detection. Background technique [0002] Glibenclamide (Glibenclamide) is a representative of the second generation of sulfonylurea oral hypoglycemic drugs. Its mechanism of action is mainly to promote the secretion of insulin by pancreatic islet B cells. Glycogenolysis and gluconeogenesis reduce liver production and output of glucose, and may also increase extrapancreatic tissue sensitivity to insulin and glucose utilization. Therefore, the overall effect is to reduce fasting blood glucose and postprandial blood glucose. Its curative effect is characterized by strong hypoglycemic effect and long duration. Due to the rapid growth rate of diabetic patients in our country, there are also a wide variety of diabetes non-prescription drugs and health food markets in our country. At pre...

Claims

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Application Information

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IPC IPC(8): C12N5/20C07K16/44G01N33/577
Inventor 胥传来许晓昕匡华徐丽广马伟刘丽强吴晓玲宋珊珊胡拥明
Owner JIANGNAN UNIV
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