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Biomarkers related to the occurrence and development of cervical diseases and their applications

A cervical squamous cell carcinoma, substance technology, applied in the field of biomarkers, EPS8L2, can solve the problems of difficult dose control, large patient damage, severe side effects and other problems

Active Publication Date: 2021-11-12
QINGDAO MEDINTELL BIOMEDICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Women with early-stage cervical cancer may be cured with hysterectomy or chemoradiotherapy, although survival and vital signs can be significantly prolonged in patients with cervical cancer, unfortunately, as many as 17% of women usually do not in the first 2 years after completing treatment Orthotopic recurrence and metastasis will occur, and the 5-year survival rate for elderly patients with advanced cervical cancer or distant metastasis is less than 20% after surgery (Amkreutz LCM, Pijnenborg JMA, cervical cytology in the diagnostic work-up Cytopathology, 2018:29 (1):63-70Joosten DWL_etal. Contribution of patients with endometrial cancer[J])
Moreover, these treatment methods are often difficult to control the dosage due to poor specificity and different constitutions of patients, resulting in large damage to patients, heavy side effects, and lack of potential value for long-term application of treatment (Ye GL, Du DL, Jin LJ, et al.Sensitization of TRAIL-resistant cervical cancer cells through combination of TRAIL, and fucoxanthin treatments[J].Eur Rev Med Pharmacol Sci,2017:21(24):5594-601)

Method used

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  • Biomarkers related to the occurrence and development of cervical diseases and their applications
  • Biomarkers related to the occurrence and development of cervical diseases and their applications
  • Biomarkers related to the occurrence and development of cervical diseases and their applications

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] Example 1 Screening for Gene Markers Related to Cervical Squamous Cell Carcinoma

[0060] 1. Sample collection

[0061] 32 cases of cervical squamous cell carcinoma (CESC) tissues, 18 normal tissues (N), and 24 cases of cervical intraepithelial neoplasia (CIN) tissues were collected. All cases did not receive any immunosuppressant treatment, radiotherapy and chemotherapy before operation. All included All the subjects signed the informed consent before collecting the specimens. All the above specimens were obtained with the consent of the organizational ethics committee. Four samples were taken from each group for detection and analysis of gene expression profiles, screening of differentially expressed genes, and verification experiments were performed in all case samples of each group.

[0062] 2. Preparation of RNA samples

[0063] Use QIAGEN tissue RNA extraction kit to extract total RNA in each group of tissues, please refer to the instruction manual for specific...

Embodiment 2

[0074] Example 2 QPCR sequencing to verify the differential expression of EPS8L2 gene

[0075] 1. Large-sample QPCR verification of differential expression of EPS8L2 gene.

[0076] 2. RNA extraction

[0077] Use QIAGEN tissue RNA extraction kit to extract total RNA in each group of tissues, please refer to the instruction manual for specific steps.

[0078] 3. QPCR

[0079] 1) Reverse transcription reaction

[0080] Use FastQμant cDNA First Strand Synthesis Kit (Product No.: KR106) for lncRNA reverse transcription, first remove the genomic DNA reaction, add 5×gDNA Bμffer 2.0μl, total RNA 1μg, add RNase Free ddH 2 O to bring the total volume to 10 μl, and heat in a water bath at 42°C for 3 min.

[0081] 10× Fast RT Bμffer 2.0μl, RT Enzyme Mix 1.0μl, FQ-RT Primer Mix 2.0μl, RNase Free ddH 2 O 5.0 μl, after mixing, add to the above test tube and mix together a total of 20 μl, heat in a water bath at 42°C for 15min, then at 95°C for 3min.

[0082] 2) Primer design

[0083] ...

Embodiment 3

[0101] Example 3 Overexpression of EPS8L2 gene

[0102] According to the sequence information of EPS8L2 gene in NCBI, specific primers were designed and amplified to obtain the corresponding genes. After the gene fragments were recovered by gel, they were connected with the expression vector pEGFP-C1 and transformed into DH5α competent cells. Positive clones were picked and subjected to PCR and After sequencing and identification, the pEGFP-C1-EPS8L2 recombinant plasmid was obtained.

[0103] 1. Cell culture

[0104]Cervical squamous cell carcinoma cells (Hela) were cultured in RPIM-1640 medium containing 10% fetal bovine serum and 1% P / S at 37°C, 5% CO 2 When the cells grew to 80%-90%, they were routinely digested and passaged with 0.25% EDTA-containing trypsin.

[0105] 2. Transfection

[0106] The experiment was divided into 3 groups, namely the control group (Hela), the blank control group (transfected with pEGFP-C1), and the experimental group (transfected with pEGFP-C...

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Abstract

The present invention discloses biomarkers related to the occurrence and development of cervical diseases and their application, and specifically relates to the application of biomarker EPS8L2 in the diagnosis and treatment of cervical intraepithelial neoplasia and cervical squamous cell carcinoma; Applications in the screening of drug candidates for the treatment of cervical squamous cell carcinoma and in the construction of computational models for the prediction of cervical intraepithelial neoplasia and cervical squamous cell carcinoma.

Description

technical field [0001] The invention belongs to the field of biomedicine, and relates to biomarkers related to the occurrence and development of cervical diseases and applications thereof, and the specifically involved biomarkers are EPS8L2. Background technique [0002] Cervical cancer (CC) is one of the most common female cancers worldwide, especially in China (Sun R, Zhang H, Liu K, et al. Clinicopathologic Predictive Factors of Cervical Lmph Node Metastasis in Differentiated Thyroid Cancer [J]. Acta Otorrinolaringol Esp, 2017:24(4):592-95). According to the incomplete statistics of the World Health Organization, there are about 530,000 new cervical cancer patients every year in the world, that is, the growth rate of 5% of the total female population is increasing year by year, and there is a trend of younger patients (Mazdziarz A, Wygledowski J, Osuch B, et al. New directions in cervical cancer prophylaxis worldwide and in Poland—Case study of the Polish ruralfemale pop...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12Q1/6886A61K45/00A61P35/00
Inventor 杨承刚孙耀兰黄露宁
Owner QINGDAO MEDINTELL BIOMEDICAL CO LTD