Culture container, method for culturing lymphocytes, culture-container production method, and solid-phasing apparatus

a technology of culture container and cell, applied in the field of cell culture technology, can solve the problems of difficult transfer of activated cells, excessive irritation of lymphocytes, suppression of lymphocyte proliferation, etc., and achieve the effect of efficient conduct activation and proliferation of lymphocytes, eliminating troublesome transfer, and preventing excessive irritation

Pending Publication Date: 2022-04-28
TOYO SEIKAN GRP HLDG LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0027]According to one or more embodiments of the present invention, it is possible to conduct activation and proliferation of lymphocytes efficiently in a single culture container without using a dedicated culture apparatus or the like. Therefore, it becomes possible to eliminate troublesomeness in transfer conducted in order to prevent excessive irritation exerted by antibodies on lymphocytes and risk of contamination. According to one or more embodiments of the present invention, it is possible to provide a method for producing a culture container that efficiently immobilized proteins and an immobilizing apparatus for conducting this method.

Problems solved by technology

However, if lymphocytes are cultured by using only the closed cell culture container disclosed in Patent Document 1, since the lymphocytes are continued to be irritated by anti-CD3 antibodies after the activation thereof, the lymphocytes are excessively irritated, and as a result, proliferation thereof is suppressed.
Therefore, in this conventional technology, if a large amount of lymphocytes is efficiently cultured, it may be difficult to transfer activated cells or there may be a risk of contamination occurs.

Method used

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  • Culture container, method for culturing lymphocytes, culture-container production method, and solid-phasing apparatus
  • Culture container, method for culturing lymphocytes, culture-container production method, and solid-phasing apparatus
  • Culture container, method for culturing lymphocytes, culture-container production method, and solid-phasing apparatus

Examples

Experimental program
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Effect test

first embodiment

[Method for Culturing Lymphocytes (First Embodiment)]

[0087]Subsequently, a first embodiment of the method for culturing lymphocytes according to one or more embodiments of the present invention will be explained with reference to FIG. 4. As shown in FIG. 4, the method for culturing lymphocytes according to one or more embodiments of the present invention comprises the step of an activation step (1) and a proliferation step (2).

(1) Activation Step

[0088]The activation step in the method for culturing lymphocytes according to one or more embodiments of the present invention is a step in which lymphocytes 30 and a culture liquid 40 are sealed in the culture container 10, and the culture container 10 is arranged such that the immobilized surface 11 becomes a bottom surface, thereby to activate the lymphocytes 30.

[0089]As mentioned above, the antibodies 20 are immobilized on the immobilized surface 11. As such antibodies 20, anti-CD3 antibodies can be preferably used.

[0090]The type of the...

second embodiment

[Method for Culturing Lymphocytes (Second Embodiment)]

[0096]Subsequently, a second embodiment of the method for culturing lymphocytes according to one or more embodiments of the present invention will be explained with reference to FIG. 5. The method for culturing lymphocytes according to one or more embodiments of the present invention has, as shown in FIG. 5, steps of activation step (1), first proliferation step (2), volume-enlarging step (3) and second proliferation step (4).

[0097]That is, the method for culturing lymphocytes according to one or more embodiments of the present invention has a volume-enlarging step in the midst of the proliferation step. As a result, proliferation efficiency of lymphocytes can be further improved as compared with that in the first embodiment. In one or more embodiments, the proliferation step will be explained by subdividing it into three steps of (2) to (4) mentioned above. Other points are the same as those in the first embodiment.

(1) Activatio...

examples

[0175]Hereinbelow, the Examples and Comparative Examples of the culture container and the method for culturing lymphocytes will be explained with reference to FIGS. 6 and 7. FIG. 6 is a schematic view showing the Examples and the Comparative Examples, and FIG. 7 is a graph showing the results of experiments conducted in the Examples and the Comparative Examples. FIG. 6 shows a difference between the Examples and the Comparative Examples, and the enlargement of the volume of the culture part is omitted.

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Abstract

A culture container for culturing lymphocytes includes an immobilized surface and a non-immobilized surface, wherein the culture container is formed of a gas permeable film, the immobilized surface and the non-immobilized surface are container inner surfaces facing each other, and anti-CD3 antibodies are immobilized in the immobilized surface at a concentration of 10 to 300 ng / cm2.

Description

TECHNICAL FIELD[0001]The present invention relates to a cell culture technology. In particular, the present invention relates to a culture container, a method for culturing lymphocytes, a method for producing a culture container in which proteins are immobilized and an immobilizing apparatus.BACKGROUND ART[0002]In recent years, in the fields of pharmaceuticals production, gene therapy, regenerative therapy, immune therapy or the like, there has been a demand for culturing a large amount of cells, tissues, microorganisms efficiently in an artificial environment.[0003]Under such circumstances, culture of a large amount of cells in a closed system by sealing cells and a culture liquid in a culture bag formed of a gas-permeable film has been conducted.[0004]In the meantime, in order to proliferate lymphocytes, it is required to activate lymphocytes at first. Therefore, lymphocytes were activated on a base member to which anti-CD3 antibodies had been immobilized, and then the activated l...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): C12M1/12C12N5/0783C12M1/00C12M1/04
CPCC12M25/00C12M25/06C12N5/0636C12M23/14C12N2501/515C12M23/24C12N2533/54C12N2533/52C12N2513/00C12M23/20C12N5/0634C12N2533/50
Inventor TOTANI, TAKAHIKOTANAKA, SATOSHIAIHARA, TAKESHIISHIZAKI, YOICHI
Owner TOYO SEIKAN GRP HLDG LTD
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