Tumor susceptibility 62 gene and its application

A technology for susceptibility genes and tumors, which is applied in the field of detection systems for assessing tumor susceptibility, and can solve problems such as the lack of research data on Asian populations

Inactive Publication Date: 2019-12-20
BEIJING CANCER HOSPITAL PEKING UNIV CANCER HOSPITAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, almost all tumor susceptibility genes are initially identified in populations of European descent, and there is a lack of research data in Asian populations, especially Chinese populations

Method used

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  • Tumor susceptibility 62 gene and its application
  • Tumor susceptibility 62 gene and its application
  • Tumor susceptibility 62 gene and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Example 1. Selection and detection of multiple tumor susceptibility genes

[0050] 1. Case sample selection criteria

[0051] Inclusion criteria for case samples: patients with familial breast cancer. The inclusion diagnostic criteria for familial breast cancer are: breast cancer patients with at least one first- or second-degree blood relative with breast cancer and / or ovarian cancer in the family. The subjects of the study were all Chinese breast cancer patients without blood relationship. Cases meeting the above criteria could be included in this study.

[0052] The subjects of this study were 106 Chinese Han patients with familial breast cancer.

[0053] 2. Experimental plan

[0054] Collect peripheral blood leukocytes to extract DNA. Specifically, genomic DNA can be randomly fragmented into 180-250bp, and samples are captured and prepared according to Agilent (SureSelect Target Enrichment System for Illumina Paired-End Sequencing Library) Version 2.2October 201...

Embodiment 2

[0079] Using the same experimental method and process as in Example 1, 62 genes were sequenced on 72 independent breast cancer samples. According to the initial sequencing data of 62 genes of 72 samples in the present invention, a total of 8342 mutations were detected in the samples. From which pathogenic mutations are screened, the process of pathogenic mutation screening is:

[0080] 1) Only the mutations in the coding region and the region adjacent to the splicing site (within 100 bp upstream and downstream of the splicing site) were selected; after the initial screening, a total of 5669 mutations were detected in the coding region and the region adjacent to the splicing site ( a) mutation;

[0081] 2) In the 1000G normal population database, the mutation frequency of the Asian normal population is <0.01; after this further preliminary screening, see Table 7 for the rare mutations in the coding region and the region adjacent to the splicing site;

[0082] 3) Frameshift mu...

Embodiment 3

[0103] Zhang San was tested for tumor susceptibility genes and individualized treatment. Follow the steps below to analyze:

[0104] (1) Questionnaire and collection of cancer family history: collect Zhang San's age, gender, personal history, past medical history and detailed tumor family history information. The following information was obtained: Zhang San, female, 30 years old, and her mother was 40 years old suffering from left breast cancer. For detailed family history information, see figure 1 .

[0105] (2) Take peripheral venous blood, extract white blood cell DNA, detect the coding regions of 62 genes and the gene mutations in the region near the splicing site, and complete the gene detection report of the research subjects. One of Zhang San's 62 genes had a nonsense mutation of BRCA1.

[0106] (3) Genetic risk assessment: Zhang San himself carries a pathogenic mutation of BRCA1. According to the calculation of risk assessment models such as BRCAPRO, compared wit...

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Abstract

The invention relates to tumor susceptibility 62 genes and application thereof. The tumor susceptibility 62 genes comprise PTEN, STK11, CDH1, TP53, BRCA1, BRCA2, PALB2, CHEK2, ATM, BRIP1, NBN, RAD51C, MLH1, MSH2, MSH6, PMS2, BARD1, RAD51D, MRE11A, MUTYH, PMS1, RAD50, XRCC2, AKT1, PIK3CA, FANCC, RECQL, CCND1, ERBB2, ESR1, GATA3, FGFR1, MAP2K4, MAP3K1, BAI3, CTNNB1, BRAF, KRAS, CTNNA1, EPCAM, APC, BLM, SMAD4, BMPR1A, POLD1, POLE, AXIN2, MEN1, KIT, EGFR, EZH2, PRF1, CDKN2A, CDK4, BAP1, RB1, ERCC2, VHL, MET, FH, FLCN and RET. The detection of the genes can be used for evaluating tumor susceptibility.

Description

technical field [0001] The present invention relates to 62 tumor susceptibility genes and applications thereof, in particular to the application of a detection agent for detecting 62 tumor susceptibility genes in the preparation of a detection system for predicting tumor susceptibility, and also relates to a method for evaluating tumor susceptibility The detection system evaluates tumor susceptibility by detecting 62 genes related to tumor susceptibility in Asian populations. Background technique [0002] Tumor is an important disease affecting human health worldwide. With the influence of risk factors such as population aging and environmental pollution, the incidence of cancer is still on the rise. [0003] Tumor susceptibility genes refer to genes whose germline mutations can increase the risk of cancer. In cancers such as breast cancer and gastrointestinal tumors, some cases have familial clustering, and it has been confirmed that the tumorigenesis is related to specif...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12Q1/6886C12N15/11G16B20/50
CPCC12Q1/6886C12Q2600/156G16B20/00G16H50/30
Inventor 解云涛孙洁张娟
Owner BEIJING CANCER HOSPITAL PEKING UNIV CANCER HOSPITAL
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