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Method for preparing cell group containing cytokine-induced killing cell

A technology of killing cells and cytokines, applied in animal cells, vertebrate cells, cell culture active agents, etc., can solve the problems of complicated collection operation and small number of cells, and achieve the effect of high-efficiency treatment effect.

Inactive Publication Date: 2009-11-18
TAKARA HOLDINGS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, TILs can only be obtained by removing the tumor tissue of the patient, so the collection operation is complicated and the number of cells obtained is very small

Method used

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  • Method for preparing cell group containing cytokine-induced killing cell
  • Method for preparing cell group containing cytokine-induced killing cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] Example 1 Scaled-up culture of CIK cells using fibronectin fragment CH-296

[0070] (1) Isolation of PBMC

[0071] After the blood components were collected from 5 patients who gave informed consent (2 for kidney cancer, 1 for lung cancer, 1 for liver cancer, and 1 for thyroid cancer), the cell fraction containing PBMC was superimposed and centrifuged on Ficoll, and the peripheral blood mononuclear cells in the middle layer were recovered (PBMC).

[0072] (2) Immobilization of anti-human CD3 antibody and CH-296

[0073] Into a T225 flask was added a phosphate-buffered physiological solution containing an anti-human CD3 antibody at a final concentration of 5 μg / mL and CH-296 (Lacronac (registered trademark), manufactured by Takara Biotechnology Co., Ltd.) at a final concentration of 15 μg / mL. 40 mL of saline (PBS) or 40 mL of PBS containing only anti-human CD3 antibody at a final concentration of 5 μg / mL, and then incubated overnight at 4°C. PBS containing the antibod...

Embodiment 2

[0087] Example 2 Anti-tumor effect of CIK cells

[0088] (1) Transplantation of CIK cells into cancer patients

[0089] To each cancer patient, the self-derived R-CIKs prepared in Example 1 were implanted twice in 4 days as a round of administration, with an average administration of 3.9×10 10 indivual. All patients received at least 2 rounds of dosing, and one patient received 3 rounds of dosing.

[0090] (2) Anti-tumor effect

[0091] No serious adverse signs associated with cell administration were found in all R-CIKs-administered cancer patients.

[0092] By administration of R-CIKs, improvement of clinical symptoms and recovery of physiological functions were found in all patients. In addition, a significant decrease in calcitonin, a tumor marker, was found in patients with thyroid cancer. In addition, the tumor size of lung cancer patients was measured by PET-CT, and it was found that the tumor shrunk by about 50%.

[0093] In summary, R-CIKs is a very safe cell pr...

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Abstract

The invention provides a method for preparing a cell group containing a cytokine-induced killing cell, which comprises the following procedure: a cell group containing a cell which can be differentiated into a cytokine-induced killing cell is cultured in the presence of a fibrous connection protein segment. The invention also provides a cell group which contains the cytokine-induced killing cell obtained by the method. The invention also provides a medicine which contains the cell group as an effective constituent. The invention also provides an application of the cell group to the preparation of medicines.

Description

technical field [0001] The present invention relates to a highly efficient cell group containing cytokine-induced killer (CIK) cells in adoptive immunotherapy, a production method of the cell group and the like. The proliferation of regulatory T cells (regulatory T cells; Treg cells) in the cell population containing CIK cells involved in the present invention is inhibited, and can be used for early and advanced cancers and various cell proliferation diseases including hematopoietic cells and solid tumors the treatment. Background technique [0002] In recent years, people have re-examined the treatment methods that cause severe physical pain to patients, such as drug therapy and radiation therapy, and began to pay more and more attention to less painful immunotherapy. The therapy includes adoptive immunotherapy, in which the immune-related cells taken out of the body are cultured to increase the number of cells and / or enhance the activity related to the therapeutic effect,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12N5/08A61K35/14A61P35/00A61P31/00C12N5/0783
CPCC12N5/0636C12N2501/58C12N2533/52A61P31/00A61P35/00A61K39/4613A61K39/4644A61K2239/55A61K2239/38A61K39/4611
Inventor 郝希山任秀宝于津浦李慧曹水安秀梅加藤郁之进
Owner TAKARA HOLDINGS
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