Use of long-chain non-coding rna RP11-224O19.2 inhibitors

A long-chain non-coding and inhibitor technology, applied in the field of molecular biology, can solve the problems that the function of RP11-224O19.2 has not been reported yet

Inactive Publication Date: 2021-01-15
SOUTHWEST JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The function of RP11-224O19.2 has not been reported yet

Method used

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  • Use of long-chain non-coding rna RP11-224O19.2 inhibitors
  • Use of long-chain non-coding rna RP11-224O19.2 inhibitors
  • Use of long-chain non-coding rna RP11-224O19.2 inhibitors

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Example 1 Design and screening of siRNA targeting RP11-224O19.2

[0034] 1. Design and synthesis of siRNA targeting RP11-224O19.2

[0035] The siRNA targeting RP11-224O19.2 and its corresponding control siRNA (negative control siRNA) were designed by us. The sequence is shown in Table 2, and then we commissioned a company to synthesize the double-stranded siRNA sequence.

[0036] 2. Experimental grouping and cell transfection

[0037] Experimental grouping: cells were divided into 3 groups according to different treatment conditions. The experimental group (RP11-224O19.2-siRNA group) was HepG2 cells transfected with siRNA with high interference efficiency; the negative control group (Negative control siRNA group) was HepG2 cells transfected with negative control siRNA; blank group (Control group) is HepG2 cells without any treatment.

[0038] The routine culture operation of HepG2 cells is as follows:

[0039] 1) Cell recovery: Liver cancer HepG2 cells were preserved...

Embodiment 2

[0074] Example 2 siRNA targeting RP11-224O19.2 for the treatment of liver cancer

[0075] In this experiment, the expression of RP11-224O9.2 was inhibited by transfecting siRNA to verify its effect on liver cancer.

[0076] 1. Effects of inhibiting RP11-224O19.2 on the proliferation, colony formation and apoptosis of liver cancer cells

[0077] 1. CCK8 assay to detect the proliferation of HepG2 cells

[0078] The experimental steps are as follows:

[0079] 1) Plate the HepG2 cells of the transfected experimental group and the negative control group and the HepG2 cells of the untreated blank group in a 96-well plate at a plating density of 3000 cells / well, and set up a 6-well experimental group for each 96-well plate , 6-well negative control group and 6-well blank group, another 6 wells were set up for zero adjustment only with medium, and a total of 5 96-well plates were inoculated. After the plating was completed, the 96-well plates were placed in the incubator for cultiva...

Embodiment 3

[0151] Example 3 The relationship between the expression level of RP11-224O19.2 and liver cancer

[0152] Analysis of the expression of RP11-224O19.2 in liver cancer:

[0153] The data analysis method is as follows: All experimental data were analyzed using SPSS 19.0 software (IBM SPSS), and P<0.05 between groups calculated by student's t-test was used as the statistical difference threshold, and the drawing was completed with Origin 8.0 and GraphPadPrism 5 software. According to the fold change of the expression level of RP11-224O19.2, 50 clinical cases of liver cancer were classified. The correlation analysis between the fold change of the expression level of RP11-224O19.2 and the clinicopathological parameters was completed by SPSS19.0 software. The Mann-Whitney U test method in the non-parametric test was used for the analysis among three samples, and the Kruskal-Wallis test method in the non-parametric test was used for the analysis among the three samples, and P<0.05 was...

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PUM

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Abstract

The invention provides the use of the long-chain non-coding RNA RP11‑224O19.2 inhibitor in the preparation of drugs for treating tumors. The invention also provides a drug for treating tumors and a liver cancer screening and / or liver cancer prognosis diagnosis kit. The present invention shows that the RP11‑22O19.2 inhibitor has a significant therapeutic effect on tumors. In addition, detecting the expression level of RP11-224O19.2 can be used for auxiliary diagnosis and prognosis judgment of clinical liver cancer, and has a good application prospect.

Description

technical field [0001] The invention belongs to the field of molecular biology, and specifically relates to the use of a long-chain non-coding RNA RP11-224O19.2 inhibitor in the preparation of drugs for treating tumors. Background technique [0002] Liver cancer is a highly malignant tumor with high metastasis rate, high mortality rate and poor prognosis, which poses a serious threat to human health and life. The etiology of liver cancer is still not completely clear. It is generally believed that the causes include chronic hepatitis B and C virus infection, alcohol abuse, and intake of poisonous food. At present, the main treatments for liver cancer include liver transplantation, surgical resection, radiotherapy, chemotherapy, and targeted therapy. The short-term survival rate of liver cancer patients has increased to some extent, but the overall mortality rate and postoperative recurrence rate remain high. [0003] Long noncoding RNA (Long noncoding RNA, LncRNA) is a type...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K31/713A61P35/00C12N15/113C12Q1/6886
CPCA61K31/713C12N15/1135C12N2310/141C12Q1/6886C12Q2600/158C12Q2600/178
Inventor 郭志云熊莉丽刘文荣
Owner SOUTHWEST JIAOTONG UNIV
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