Human big cell lung cancer cell strain with high osseous metastasis potency

A technology of human large cell lung cancer and cell lines, applied in the field of human large cell lung cancer cell lines, can solve the problems of unclear molecular mechanism of lung cancer metastasis, difficult early diagnosis of disease, no tumor metastasis, etc.

Inactive Publication Date: 2015-05-06
SHANGHAI SIXTH PEOPLES HOSPITAL
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Problems solved by technology

Although the current clinical treatment of lung cancer has made considerable progress, statistics show that the mortality rate of lung cancer is still high for a long time; the main reasons for the research analysis are that the disease is difficult to diagnose early and its high metastases
Clinical practice shows that many patients are found to have multiple organ metastases when they are first diagnosed. Therefore, tumor metastasis and recurrence are still difficult problems in the treatment of lung cancer; however, at present, lung cancer metastasis, especially targeted metastasis (transfer of tumor cells to specific organs) The molecular mechanism is still unclear
Statistics show that the incidence of lung cancer is increasing year by year, and it is very easy to metastasize to bone, brain, and liver, and the prognosis of patients is very poor.
At present, studies on tumor metastasis-related molecules have discovered various molecules, such as molecules that degrade cell matrix, cell adhesion molecules, and metastasis-associated glycoproteins, etc., but none of the above studies have investigated the mechanism of tumor metastasis to specific organs illustrate

Method used

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  • Human big cell lung cancer cell strain with high osseous metastasis potency
  • Human big cell lung cancer cell strain with high osseous metastasis potency
  • Human big cell lung cancer cell strain with high osseous metastasis potency

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Experimental program
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Embodiment 1

[0021] Human large cell lung cancer cell line (NCI-H460, purchased from Shanghai Institute of Cellular Science, Chinese Academy of Sciences) cells were used as parental cells to plant in the left ventricle of nude mice to cause bone metastasis. 99m Bone metastases were detected by Tc-MDP micro pinhole bone scintigraphy; bone metastases were taken out and cultured in vitro, expanded and planted in the left ventricle of nude mice, and screened in vivo and in vitro by immunodeficient mice (BALB / c-nu-nu) Six The second time, the human large cell lung cancer cell line H460BM with bone metastases was successfully screened and cultured, which was deposited on October 28, 2011, with the deposit number: CGMCC No.5406, and the classification name: human large cell lung cancer cell line with bone metastases NCI-H460BM.

[0022] The culture medium is RPMI1640 or DMEM medium containing 10% calf or fetal bovine serum, pH=7, culture temperature is 37°C, 5% CO 2 .

[0023] The cells showed a...

Embodiment 2

[0025] One million H460BM cells were implanted in the left ventricle of immunodeficient mice. After two weeks, the weight of the mice dropped sharply, and dropped to about 15 grams in the third week. In the fourth week, the weight dropped to 12-13 grams. Bone scintigraphy (eg, Figure 6 microSPECT and micro pinhole bone scintigraphy), the results showed obvious bone metastases, but the X-rays were always negative; pathological results confirmed that bone metastases reached 100%, including 100% of spine, humerus, and mandibular metastases; 75% of scapula and rib metastases %, confirming that the cell H460BM is a lung cancer cell line with high potential for bone metastasis, and can be used as a good cell model for bone metastasis of human large cell lung cancer.

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Abstract

The invention belongs to the field of biotechnology and microorganism animal cell line and particularly relates to a human big cell lung cancer cell strain with high osseous metastasis potency and a purpose of the human big cell lung cancer cell strain with high osseous metastasis potency. A human big cell lung cancer parental generation cell NCI-H460 is utilized as a source cell for screening an osseous metastasis cell, the human big cell lung cancer cell line H460BM with high osseous metastasis potency is screened, cultivated and built by screening six times inside and outside an immunodeficient mice. A preservation number is CGMCC No. 5406. The cell line can be used as an ideal cell model of directional osseous metastasis research of human lung cancer and for transformation mechanism research and anti-metastasis drug screening of human cancer.

Description

technical field [0001] The invention belongs to the fields of biological technology and microbial animal cell lines, and specifically relates to a human large cell lung cancer cell line with high bone metastasis potential and its application. Background technique [0002] Lung cancer is one of the malignant diseases that seriously threaten the survival and development of human beings, and has become the number one killer of tumor diseases. Although the current clinical treatment of lung cancer has made great progress, statistics show that the mortality rate of lung cancer is still high for a long time; the main reason for the research analysis is that the disease is difficult to diagnose early and its high metastases. Clinical practice shows that many patients are found to have multiple organ metastases at the first diagnosis. Therefore, tumor metastasis and recurrence are still difficult problems in the treatment of lung cancer; however, at present, lung cancer metastasis, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12N5/09C12Q1/02C12R1/91
Inventor 赵必增
Owner SHANGHAI SIXTH PEOPLES HOSPITAL
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