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

Early diagnosis reagent for colorectal cancer based on combined detection of methylation levels of SDC2 gene and SFRP2 gene

A colorectal cancer, 1.SDC2 technology, applied in the field of molecular biology, can solve the problems of low accuracy, time-consuming and laborious, invasive and so on

Active Publication Date: 2018-12-11
SHANGHAI REALBIO TECH CO LTD
View PDF4 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems of invasiveness, time-consuming and laborious, and low accuracy existing in the existing colorectal cancer diagnosis technology, the present invention provides a non-invasive early diagnosis of colorectal cancer based on the joint detection of the methylation levels of SDC2 gene and SFRP2 gene Reagents and methods to achieve accurate and simple diagnosis of early colorectal cancer

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
  • Early diagnosis reagent for colorectal cancer based on combined detection of methylation levels of SDC2 gene and SFRP2 gene
  • Early diagnosis reagent for colorectal cancer based on combined detection of methylation levels of SDC2 gene and SFRP2 gene
  • Early diagnosis reagent for colorectal cancer based on combined detection of methylation levels of SDC2 gene and SFRP2 gene

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0085] Embodiment 1. Preparation and use of kit

[0086] In the kit of the present invention, including SDC2 gene detection primers and probes, SFRP2 gene detection primers and probes, the nucleotide sequences thereof are shown in Table 1-1 below:

[0087] Table 1-1

[0088]

[0089] The kit can also include a control, which is a β-actin detection primer and a probe, and its nucleotide sequence is shown in Table 1-2 below:

[0090] Table 1-2

[0091]

[0092] experiment procedure:

[0093] 1. DNA Extraction from Stool Samples

[0094] The specific extraction method may include the following steps: follow the standard operating procedure of the QIAamp Fast DNA Stool Mini Kit kit: add 1ml InhibitEX Buffer to the sample, vortex for 1min until the sample is fully homogenized, and centrifuge at 16000g for 1min; take 25μl proteinase K into a new Centrifuge the tube, and pipette 600μl of the supernatant from the previous step to the proteinase K tube, add 600μl Buffer AL an...

Embodiment 2

[0121] Example 2. The kit detects samples from patients with intestinal cancer

[0122] 1. DNA Extraction from Stool Samples

[0123] The stool samples of 38 patients diagnosed as colon cancer by colonoscopy and pathological examination were clinically collected, and the stool samples of 30 patients diagnosed as normal by colonoscopy were collected. DNA extraction was performed on the obtained stool samples.

[0124] The specific extraction method may include the following steps: Follow the standard operating procedure of the QIAamp Fast DNAStool Mini Kit kit: add 1ml InhibitEX Buffer to the sample, vortex for 1min until the sample is fully homogenized, and centrifuge at 16000g for 1min; take 25μl proteinase K into a new centrifuge tube, and pipette 600 μl of the supernatant from the previous step to the proteinase K tube, add 600 μl Buffer AL and vortex for 15 seconds, incubate at 70°C for 10 minutes; add 600 μl of ethanol, vortex and mix well, divide into three QIAamp spin ...

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 biology, and particularly relates to an early diagnosis reagent for colorectal cancer based on combined detection of methylation levels of a SDC2 gene and a SFRP2gene. The early diagnosis reagent is characterized in that the excrement is used as a detection sample, the SDC2 gene and the SFRP2 gene are jointly used as biological markers, and the methylation levels of the SDC2 gene and the SFRP2 gene are detected. Proofed by results, the early diagnosis reagent has the advantages that the detected methylation levels of the SDC2 gene and the SFRP2 gene in the excrement are highly related with the disease generation of colorectal cancer, the detection sensitivity of colorectal cancer is 94.74%, and the specificity is 96.67%; the detection result is accurate, quick and simple, and the non-wound type colorectal cancer screening and early diagnosis are realized.

Description

technical field [0001] The invention belongs to the field of molecular biology, and in particular relates to an early diagnosis reagent for colorectal cancer based on joint detection of the methylation levels of SDC2 and SFRP2 genes. Background technique [0002] Colorectal cancer is one of the most common malignant tumors in the world. Early screening and diagnosis of colorectal cancer in the population is the key to disease prevention and treatment. Currently, the clinical screening of colorectal cancer is mainly carried out through fecal occult blood test and colonoscopy. Fecal occult blood test is to detect the hemoglobin in the stool. If multiple and continuous positive reactions indicate gastrointestinal bleeding, further examination should be done to alert the occurrence of intestinal tumors. Although this technique is convenient and non-invasive, it is easily affected by diet and other factors, which in turn affects the accuracy of the test results. In addition, co...

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
IPC IPC(8): C12Q1/6886
CPCC12Q1/6886C12Q2600/154
Inventor 王美丛刘晶秦楠
Owner SHANGHAI REALBIO TECH CO LTD
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

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com