Application of ACAT1 gene as well as interferent of ACAT1 gene or protein, and product applying interferent

A gene and product technology, applied in the direction of medical preparations containing active ingredients, gene therapy, biochemical equipment and methods, etc., can solve the problems of cumbersome diagnosis and high cost of kidney disease

Active Publication Date: 2018-01-30
北京百替生物技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The first object of the present invention is to provide the application of ACAT1 gene in the preparation of the product for diagnosing kidney disease, the second object of the present invention is to provide a kind of test kit for diagnosing kidney disease, to alleviate the problem existing in the prior art. The technical problems of cumbersome and costly diagnosis of kidney disease

Method used

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  • Application of ACAT1 gene as well as interferent of ACAT1 gene or protein, and product applying interferent
  • Application of ACAT1 gene as well as interferent of ACAT1 gene or protein, and product applying interferent
  • Application of ACAT1 gene as well as interferent of ACAT1 gene or protein, and product applying interferent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] The cultivation of embodiment 1 human kidney cancer Wilms cell (G-401)

[0079] cell culture

[0080] Cultured in DMEM medium containing 10% fetal bovine serum at 37°C, 5% CO 2 In the cell culture incubator, the time to replace the cell culture medium is determined according to the state of the cells, and the cells are passaged in time.

[0081] cell inheritance

[0082] Pour out the original DMEM culture medium in the culture bottle, wash it twice with 1mL PBS, then add 0.5mL of 0.25% trypsin, cover the bottle cap and let it stand for about 1min, so that the trypsin can completely digest the adherent cells. Then add 4 mL of DMEM culture medium and blow the wall of the bottle to which the cells are attached to fully disperse the cells and suspend them in the culture medium. Adjust the subculture ratio according to the test requirements, and put them into a new culture bottle to continue culturing.

Embodiment 2

[0083] The establishment of embodiment 2 IgA nephropathy model

[0084] (1) Selection of fatty acid concentration

[0085] Adjust the G-401 cell density to 5×10 4 cells / mL, inoculated in 96-well plate, 200 μL of cell suspension per well, replaced the culture medium after 6 hours, and incubated in the incubator until the cell confluence was 80%-90%.

[0086] The culture medium in the wells of the culture plate was discarded, the normal DMEM culture medium was added to the control group, and the palmitic acid (palmitic acid, PA) culture medium with a concentration of 0, 0.25, 0.5, 1, 2 and 4 mmol / L was added to the test group respectively. . Six replicates were set for each concentration, and 100 μL of normal DMEM medium was added to the control wells.

[0087] After culturing for 24 hours, add 10 μL of 0.5% MTT solution to each well, and add 100 μL DMSO after incubation for 4 hours. After the purple crystals are fully dissolved, set the wavelength to 490 nm for detection by ...

Embodiment 3

[0095] Example 3 ACAT1 mRNA expression

[0096] PA stimulation induces the expression level of ACAT1 in the cell model of IgA nephropathy

[0097] Place G-401 cells in a 6-well plate and culture until the confluence reaches 80%-90%, add normal DMEM culture medium to the control group, and add an appropriate amount of PA stock solution to the other groups, so that the final concentration is 0.25mmol / L , 0.5mmol / L and 1mmol / L. After culturing in the incubator for 24 hours, the cells of each group were collected.

[0098] (1) Expression of ACAT1 mRNA level

[0099] The total RNA in G-401 cells was extracted by the TRIzol method in a dedicated console (DEPC water cleaning). Experimental consumables such as centrifuge tubes and pipette tips were soaked in DEPC water before extraction to remove RNase.

[0100] Extracting RNA from G-401 cells mainly includes the following steps:

[0101] a. Add 1mL Trizol to each well of the six-well plate, scrape off the cells with a cell scrap...

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Abstract

The invention provides application of an ACAT1 gene as well as an interferent of the ACAT1 gene or protein, and a product applying the interferent, and relates to the technical field of medical engineering. According to experimental finding, the expression of the ACAT1 gene provided by the invention in the renal lesion area of a patient suffering from IgA kidney disease is sharply increased, and the kidney disease can be diagnosed through specific detection on the ACAT1 gene. Meanwhile, the interferent of the ACAT1 has the effect of inhibiting the expression of the ACAT1 gene or protein, and the interferent of the ACAT1 gene serves as a medicine and can achieve the effect of preventing and / or treating the IgA kidney disease. Therefore, the ACAT1 gene can serve as a new biomarker and can beapplied to diagnosis of the kidney disease; the corresponding interferent of the ACAT1 gene or protein can serve as a novel medicine and has potential prevention and treatment value on the IgA kidneydisease.

Description

technical field [0001] The present invention relates to the technical field of medical engineering, in particular to the application of ACAT1 gene and ACAT1 gene or protein interferer and the product using the interferer. Background technique [0002] IgA nephropathy is the most common primary glomerular disease, which refers to the glomerular mesangial area with IgA or IgA deposition mainly, with or without other immunoglobulin deposition in the glomerular mesangial area primary glomerulopathy. Lesion types include focal segmental lesions, endocapillary proliferative lesions, mesangial proliferative lesions, crescentic lesions, and sclerotic lesions. Its clinical manifestations are recurrent gross hematuria or microscopic hematuria, which may be accompanied by varying degrees of proteinuria, and some patients may develop severe hypertension or renal insufficiency. In recent years, the incidence of IgA nephropathy and the end-stage renal disease caused by it has increased ...

Claims

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Application Information

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IPC IPC(8): C12Q1/6883A61K45/00A61K48/00A61K31/713A61P13/12
Inventor郭磊
Owner北京百替生物技术有限公司