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A sunitinib-resistant cell line of renal cancer, its construction method and its application

A kidney cancer sunitinib and drug-resistant cell technology, applied in the field of bioengineering, to achieve the effects of increased tolerance, enhanced invasion and cloning ability, and prolonged proliferation cycle

Active Publication Date: 2021-05-04
SHANGHAI TONGJI HOSPITAL +1
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  • Description
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Problems solved by technology

There is no relevant report about the sunitinib-resistant cell line, construction method and application of this patent for renal cancer

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  • A sunitinib-resistant cell line of renal cancer, its construction method and its application
  • A sunitinib-resistant cell line of renal cancer, its construction method and its application
  • A sunitinib-resistant cell line of renal cancer, its construction method and its application

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Embodiment 1

[0045] Example 1 Establishment and Testing of Renal Cancer Sunitinib-resistant Cell Lines

[0046] 1. Induction of sunitinib-resistant cell lines in renal cell carcinoma

[0047] Drug-resistant cell lines were induced by stepwise increasing drug concentration. The 786-O cells in the logarithmic growth phase were inoculated in RPMI-1640 culture medium containing 10% fetal bovine serum, placed at 37°C, 5% CO 2 cultured in a saturated humidity incubator. Inoculate 786-O cells in a six-well plate. When the cells are fused to 50-60%, add an appropriate amount of Sun to the culture medium for induction. The initial concentration is 2 μM / L. After 24 hours of induction, the drug is withdrawn, and the cells are passaged normally. When returning to normal growth, induce 24h again until the cells can grow normally and be passaged at a concentration of 2 μM / L. First, the concentration was increased by 1 μM / L to induce the cells to grow and pass normally under the Sun of 6 μM / L, and the...

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Abstract

The invention relates to the technical field of bioengineering, in particular to a sunitinib-resistant cell line of renal cancer and its construction method and application. The present invention inoculates the 786-O cells in the logarithmic growth phase in the RPMI-1640 culture solution containing 10% fetal bovine serum, adopts the method of gradually increasing the drug concentration in vitro, and lasts six months, and finally obtains the drug that can contain 20 μM / The 786‑O‑Su cell line was stably grown and passaged in L Sun's culture system. The sunitinib-resistant cell line of renal cancer obtained in the present invention can better simulate clinical drug resistance, and is useful for studying the drug resistance mechanism of renal cancer targeted drugs, reversing drug resistance of renal cancer cells, and developing and evaluating new anti-cancer drugs. Cancer drugs provide an important platform, and the construction method of the present invention is simple to operate and low in cost, and can provide a reference for the construction of other drug-resistant cell lines.

Description

technical field [0001] The invention relates to the technical field of bioengineering, in particular to a sunitinib drug-resistant cell line of renal cancer, its construction method and its application. Background technique [0002] Renal Cell Carcinoma (RCC), referred to as kidney cancer, is a common malignant tumor of the urinary system. Clear cell renal cell carcinoma (ccRCC) is the most common and most aggressive histological type of renal cancer, accounting for about 80-85%. The onset of renal cell carcinoma is insidious, nearly one-third of patients have metastasized at the time of first diagnosis, and 20-40% of patients with localized renal cell carcinoma will still develop metastasis after tumor resection, while metastatic renal cell carcinoma (mRCC) ) patients have a very poor prognosis, with a five-year survival rate of no more than 10%. mRCC is not sensitive to traditional chemotherapy and radiotherapy, and targeted therapy is currently the main clinical treatme...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12N5/09C12Q1/02C12R1/91
CPCC12N5/0693G01N33/5011G01N2500/10
Inventor 吕琦王刚敏马春辉王培军张沂南马小龙刘君田举毛新青唐俊军倪玉华
Owner SHANGHAI TONGJI HOSPITAL
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