miRNA marker relative to esophagus cancer postoperative early relapse and prognosis and application

An esophageal cancer and marker technology, applied in the field of genetic engineering and oncology, can solve the problems of lack of specific and sensitive molecular markers, lack of early recurrence and metastasis of esophageal cancer, and different molecular biological changes, etc. The effect of improving sensitivity and specificity, simple method, and convenient operation

Active Publication Date: 2013-06-19
河南普诺易生物制品研究院有限公司 +1
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  • Claims
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Problems solved by technology

[0004] At present, there are many studies and reports on tumor molecular markers of esophageal cancer, except for the traditional tumor markers carcinoembryonic antigen (CEA), squamous cell carcinoma-related antigen (SCC), cytokeratin fragment 19 (CYFRA2l–l ), p53 protein antibody (p53-Ab), etc., hot molecular markers EGFR (epidermal growth factor receptor), CycIinDl (cyclin Dl), COX-2 (cyclooxygenase 2), PCNA ( Proliferating cell nuclear antigen), VEGF (vascular endothelial growth factor) and so on all have certain clinical significance in judging the prognosis of esophageal cancer, but the above molecular markers mainly focus on the research on different tumor pathological stages, as well as on lymph node metastasis and tumor infiltration depth. There is a lack of research on molecular markers with different prognosis for the same pathological stage, the same operator, the same operation method, and the same postoperative treatment plan. There is a lack of research on early recurrence and metastasis of esophageal cancer after surgery. There is a lack of specificity. Molecular markers with high sensitivity and high sensitivity can be used to predict the occurrence, development and prognosis of esophageal cancer, and the process of esophageal cancer and development is the result of polygenic changes, and the molecular biological changes are not completely the same. The combination of molecular marker detection is helpful. To improve the sensitivity of judging the prognosis

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  • miRNA marker relative to esophagus cancer postoperative early relapse and prognosis and application
  • miRNA marker relative to esophagus cancer postoperative early relapse and prognosis and application
  • miRNA marker relative to esophagus cancer postoperative early relapse and prognosis and application

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Experimental program
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Embodiment

[0028] 1. Sample selection

[0029] Two paraffin specimens were selected from the First Affiliated Hospital of Xinxiang Medical College from 2006 to 2007 with the same pathological stage and significantly different prognosis and survival. These two specimens were both paraffin specimens made from tumor samples of primary lesions surgically resected for the first time. At the same time, the normal esophageal mucosa 8 cm away from the edge of the tumor tissues of the two paraffin samples were selected as controls. In 2 cases, there was no distant metastasis diagnosed by physical examination and imaging before operation, and no radiation therapy or chemotherapy was received before operation. Both cases underwent esophageal cancer resection + thoracic and abdominal two-field lymph node dissection, and neck anastomosis was performed manually. Postoperative chemotherapy was performed twice, and postoperative pathological examination showed that the middle segment of the esophagus wa...

experiment example 1

[0069] Experimental example 1. Verification of expression difference of has-miR-212 in patients with esophageal cancer with the same stage but different prognosis

[0070] 1. Sample selection

[0071] Selected 46 cases of paraffin wax specimens from the First Affiliated Hospital of Xinxiang Medical College from 2006 to 2009 with the same pathological stage and significant differences in prognosis and survival. There was no distant metastasis in the imaging diagnosis of the examination machine, and no radiation therapy or chemotherapy was received before operation. Among them, 18 cases were specimens of esophageal cancer that were alive 5 years after surgery and had a good prognosis, and 28 cases were specimens of esophageal cancer that had recurred early within 1 year after surgery and had a poor prognosis. The patient information is shown in Table 7. At the same time, the normal esophageal mucosa with the same pathological stage and 8 cm away from the edge of the tumor tissu...

experiment example 2

[0100] Experimental example 2. Analysis of has-miR-212 expression level and risk score method for early recurrence and prognosis of esophageal cancer after surgery

[0101] Kaplan-Meier was used to analyze the correlation between the expression level of has-miR-212 and the survival time, as shown in figure 2 shown. The results showed that the expression level of has-miR-212 was significantly correlated with survival time (p=0.024).

[0102]Cox univariate risk analysis was performed on the prognosis, gender, age, TNM stage, postoperative T, N0-N1 stage, tumor size, degree of differentiation and expression of has-miR-212 in patients with esophageal cancer. The results are shown in Table 9 Show. The results showed that the patient's prognosis (P=0.000), TNM stage (P=0.023), postoperative T (p=0.010), tumor size (p=0.006) and has-miR-212 expression (p=0.032) were significantly different from those of patients. There was a significant correlation with survival time.

[0103] T...

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Abstract

The invention discloses a miRNA marker relative to esophagus cancer postoperative early relapse and prognosis and an application, wherein, the miRNA marker is has-miR-212. The invention relates to an application of the miRNA marker in preparation of a kit for esophagus cancer postoperative early relapse and prognosis auxiliary diagnosis. The invention relates to an application of a primer of the miRNA marker relative to esophagus cancer postoperative early relapse and prognosis in preparation of the kit for esophagus cancer postoperative early relapse and prognosis auxiliary diagnosis. The invention relates to the primer of the miRNA marker relative to esophagus cancer postoperative early relapse and prognosis in preparation of the kit for esophagus cancer postoperative early relapse and prognosis auxiliary diagnosis. The method provided by the invention is simple, the operation is convenient, the screened has-miR-212 can determine the prognosis or death risk of the patients in an auxiliary mode, and the development for diagnosis and treatment of the esophagus cancer can be promoted.

Description

technical field [0001] The invention relates to a miRNA marker related to the early recurrence and prognosis of esophageal cancer after operation, and also relates to the application of the marker, which belongs to the fields of genetic engineering and oncology. Background technique [0002] Esophageal cancer (Esophageal carcinoma, EC) is a common malignant tumor of the digestive tract, accounting for the second place in the death of tumors in various parts of the digestive system. The world dies from this disease every year, reaching 300,000 people, of which about 150,000 people die in China every year. It is the country with the highest incidence rate of esophageal cancer in the world. Although great progress has been made in chemotherapy, radiotherapy, and concurrent chemoradiotherapy for esophageal cancer in recent years, surgery is still the most important treatment for esophageal cancer. However, the treatment effect is not ideal, and the 5-year survival rate is only ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12N15/113C12Q1/68
Inventor 赵宝生齐博姚文健刘尚国王天云李汉臣
Owner 河南普诺易生物制品研究院有限公司
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