Multiwell cell culture system having rotating shafts for mixing culture media and method of use thereof

Patent metadata

Field	Value
Publication number	US-11053468-B2
Application number	US-202016804924-A
Country	US
Kind code	B2
Filing date	Feb 28, 2020
Priority date	Nov 13, 2015
Publication date	Jul 6, 2021
Grant date	Jul 6, 2021

Abstract

A method of cell culture and a method of generating organoids is provided. The methods utilize a cell culture system which includes a multiwell culture plate having shafts for mixing culture media within wells of the culture plate. The multiwell culture plate includes a base substrate having a plurality of culture wells, and a shaft operably associated with each culture well, each shaft being configured to mix media present in each culture well and having a gear adapted to operably associate with a gear on a shaft associated with an adjacent culture well. The system further includes a motor having a drive shaft in operable communication with the shaft gears of the multiwell culture plate. The system can be widely used as a standard platform to generate stem cell-derived human organoids for any tissue and for high-throughput drug screenings, toxicity testing, and modeling normal human organ development and diseases.

First claim

What is claimed is:

1. A method of cell culture comprising:
a) providing a cell culture system, the cell culture system comprising:
a first multiwell culture plate, the first multiwell culture plate having:
i) a base substrate having a plurality of culture wells; and
ii) a shaft operably associated with each culture well, each shaft being configured to mix media present in each culture well and having a gear adapted to operably associate with a gear on a shaft associated with an adjacent culture well;

a second multiwell culture plate, the second multiwell culture plate having:
i) a base substrate having a plurality of culture wells; and
ii) a shaft associated with each culture well, each shaft being configured to mix media present in each culture well and having a gear adapted to operably associate with a gear on a shaft associated with an adjacent culture well; and

a motor having a drive shaft in operable communication with the shaft gears of the first and second multiwell culture plates,
wherein rotation of the drive shaft causes rotation of each shaft of the first and second multiwell culture plates and mixing of the media in each culture well of the first and second multiwell culture plates, and
wherein the first and second multiwell culture plates are in a stacked configuration; and

b) culturing a cell in a culture well of the first or second multiwell culture plate in culture media under conditions suitable for cell culture, wherein the conditions comprise mixing of the cell culture via actuation of the motor, thereby culturing the cell.

2. The method of cell culture of claim 1 , wherein the culture media is mixed at a speed suitable to suspend cells within the culture wells.

3. The method of cell culture of claim 2 , wherein the culture media is mixed at a shaft speed of between about 30-125 RPM.

4. The method of cell culture of claim 1 , wherein the cell is a stem cell.

5. The method of cell culture of claim 4 , wherein the cell is an induced pluripotent stem cell (iPSC) or an embryonic stem cell (ESC).

6. The method of cell culture of claim 1 , further comprising introducing a biological agent into the culture media and detecting a cellular response.

7. The method of claim 6 , wherein the biological agent is a virus.

8. The method of cell culture of claim 1 , further comprising introducing an agent into the culture media that promotes cellular differentiation.

9. A method of producing organoids comprising:
a) providing a cell culture system, the cell culture system comprising:
a first multiwell culture plate, the first multiwell culture plate having:
i) a base substrate having a plurality of culture wells; and
ii) a shaft operably associated with each culture well, each shaft being configured to mix media present in each culture well and having a gear adapted to operably associate with a gear on a shaft associated with an adjacent culture well;

a second multiwell culture plate, the second multiwell culture plate having:
i) a base substrate having a plurality of culture wells; and
ii) a shaft associated with each culture well, each shaft being configured to mix media present in each culture well and having a gear adapted to operably associate with a gear on a shaft associated with an adjacent culture well; and

a motor having a drive shaft in operable communication with the shaft gears of the first and second multiwell culture plates,
wherein rotation of the drive shaft causes rotation of each shaft of the first and second multiwell culture plates and mixing of the media in each culture well of the first and second multiwell culture plates, and
wherein the first and second multiwell culture plates are in a stacked configuration;

b) culturing a cell in a culture well of the first or second multiwell culture plate in culture media under conditions suitable for cell culture, wherein the conditions comprise mixing of the cell culture via actuation of the motor; and
c) optionally harvesting organoids from the culture well;
thereby producing organoids.

10. The method of claim 9 , wherein the culture media is mixed at a speed suitable to suspend cells within the culture well.

11. The method of claim 10 , wherein the culture media is mixed at a shaft speed of between about 30-125 RPM.

12. The method of claim 9 , wherein the cell is a stem cell.

13. The method of claim 12 , wherein the cell is an induced pluripotent stem cell (iPSC) or an embryonic stem cell (ESC).

14. The method of claim 9 , wherein the organoids comprise brain tissue or brain tissue precursors.

15. The method of claim 14 , wherein the brain tissue or precursors are related to cerebral cortex, midbrain or hypothalamus tissue.

16. The method of claim 14 , wherein the brain tissue or precursors are forebrain-specific organoids.

17. The method of claim 9 , further comprising introducing a biological agent into the culture media and detecting a cellular response.

18. The method of claim 17 , wherein the biological agent is a virus.

19. The method of claim 9 , further comprising introducing an agent into the culture media that promotes cellular differentiation.

Assignees

• Univ Johns Hopkins

Inventors

• Song Hongjun
• Ming Guoli
• Song Mingxi Max
• Hadiono Christopher
• Jeang William
• Nguyen Ha Nam
• Qian Xuyu

Classifications

• B01F35/33

  Transmissions; Means for modifying the speed or direction of rotation · CPC title

• B01F35/3231

  Driving several stirrer shafts, e.g. about the same axis · CPC title

• B01F27/0724

  directly mounted on the rotating axis · CPC title

• B01F27/0723

  oblique with respect to the rotating axis · CPC title

• B01F33/813

  mixing simultaneously in two or more mixing receptacles · CPC title