CA2262812A1 - Hollow fiber bioreactor comprising a hydrogel flow restrictor - Google Patents

Hollow fiber bioreactor comprising a hydrogel flow restrictor

Info

Publication number
CA2262812A1
CA2262812A1 CA002262812A CA2262812A CA2262812A1 CA 2262812 A1 CA2262812 A1 CA 2262812A1 CA 002262812 A CA002262812 A CA 002262812A CA 2262812 A CA2262812 A CA 2262812A CA 2262812 A1 CA2262812 A1 CA 2262812A1
Authority
CA
Canada
Prior art keywords
flow path
housing
filament
cells
bioreactor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002262812A
Other languages
French (fr)
Other versions
CA2262812C (en
Inventor
Bruce P. Amiot
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Excorp Medical Inc
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2262812A1 publication Critical patent/CA2262812A1/en
Application granted granted Critical
Publication of CA2262812C publication Critical patent/CA2262812C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12MAPPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M25/00Means for supporting, enclosing or fixing the microorganisms, e.g. immunocoatings
    • C12M25/10Hollow fibers or tubes
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12MAPPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M29/00Means for introduction, extraction or recirculation of materials, e.g. pumps
    • C12M29/16Hollow fibers
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12MAPPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M41/00Means for regulation, monitoring, measurement or control, e.g. flow regulation

Abstract

A bioreactor containing living animal cells at density approaching that of normal animal tissue is described. High cell loading is achieved by providing a hydrogel plug which controls fluid flow through the bioreactor during cell loading. Methods for making and using the bioreactor are also described.

Claims (39)

1. A bioreactor which comprises:
a) an elongate housing defining a central axis;
b) a plurality of elongate hollow filaments each positioned within the housing substantially parallel to the central axis and defining an extrafilamentary space within the housing, each of the hollow filaments formed of a material which allows molecular transport therethrough;
c) a cell population positioned within the housing, the cell population occupying the extrafilamentary space and comprising living cells;
d) a filament inlet port and a filament outlet port, said ports communicating through the hollow filaments to define a filament flow path;
e) a housing inlet port and a housing outlet port, said ports communicating through the cell population to define an extrafilament flow path, the extrafilament flow path being isolated from the filament flow path such that a material in one path may enter the other path only by molecular transport through the material comprising the hollow filaments; and f) a flow restrictor positioned in the extrafilament flow path to maintain a substantially uniform flow across the extrafilament flow path.
2. A bioreactor of Claim 1 wherein the cells are mammalian cells.
3. A bioreactor of Claim 1 wherein the cells are present at a density of at least about 10 7 cells per milliliter.
4. A bioreactor of Claim 1 wherein the cells are present at a density of at least about 10 8 cells per milliliter.
5. A bioreactor of Claim 2 wherein the cells are hepatocytes.
6. A bioreactor of Claim 3 wherein the cells are hepatocytes.
7. A bioreactor of Claim 4 wherein the cells are hepatocytes.
8. A bioreactor of Claim 1 wherein the flow restrictor comprises a hydrogel.
9. A bioreactor of Claim 1 wherein the flow restrictor comprises a material selected from collagen, agarose, calcium alginate, chitosan acetate, a polyacrylamide, or a combination thereof.
10. A bioreactor of Claim 1 wherein the filaments are selected from filaments made of polysulfone, cellulose acetate, polyacrylonitrile, polymethylmethacrylate, or an ethylene polyvinyl alcohol copolymer.
11. A method for treating a biological fluid which comprises:
a) providing a bioreactor which comprises i) an elongate housing defining a central axis;
ii) a plurality of elongate hollow filaments each positioned within the housing substantially parallel to the central axis and defining an extrafilamentary space within the housing, each of the hollow filaments formed of a material which allows molecular transport therethrough;
iii) a cell population positioned within the housing, the cell population occupying the extrafilamentary space and comprising living cells capable of treating the biological fluid;
iv) a filament inlet port and a filament outlet port, said ports communicating through the hollow filaments to define a filament flow path;
v) a housing inlet port and a housing outlet port, said ports communicating through the cell population to define an extrafilament flow path, the extrafilament flow path being isolated from the filament flow path such that a material in one path may enter the other path only by molecular transport through the material comprising the hollow filaments; and vi) a flow restrictor positioned in the extrafilament flow path to maintain a substantially uniform flow across the extrafilament flow path; and b) causing the biological fluid to travel along the filament flow path.
12. The method of Claim 11 which further comprises causing a fluid containing nutrients for the cells to travel along the extrafilament flow path.
13. The method of Claim 11 wherein the cells are mammalian cells.
14. The method of Claim 11 wherein the cells are present at a density of at least about 10 7 cells per milliliter.
15. The method of Claim 11 wherein the cells are present at a density of at least about 10 8 cells per milliliter.
16. The method of Claim 13 wherein the cells are hepatocytes.
17. The method of Claim 14 wherein the cells are hepatocytes.
18. The method of Claim 15 wherein the cells are hepatocytes.
19. The method of Claim 11 wherein the flow restrictor comprises a hydrogel.
20. The method of Claim 11 wherein the flow restrictor comprises a material selected from collagen, agarose, calcium alginate, chitosan acetate, a polyacrylamide, or a combination thereof.
21. The method of Claim 11 wherein the filaments are selected from filaments made of polysulfone, cellulose acetate, polyacrylonitrile, polymethylmethacrylate, or an ethylene polyvinyl alcohol copolymer.
22. The method of Claim 12 wherein the filament flow path and the matrix flow path have co-current flow.
23. The method of Claim 12 wherein the filament flow path and the matrix flow path have counter-current flow.
24. The method of Claim 11 wherein the biological fluid comprises blood.
25. The method of Claim 16 wherein the biological fluid comprises blood.
26. A method of fabricating a bioreactor having a flow restrictor, the method comprising:
a) providing a hollow filament bioreactor cartridge, the cartridge comprising a housing containing a plurality of elongate hollow filaments each positioned within the housing substantially parallel to the central axis and defining an extrafilamentary space within the housing, each of the hollow filaments formed of a material which allows molecular transport therethrough, the housing further comprising a filament inlet port and a filament outlet port,said ports communicating through the hollow filaments to define a filament flow path, and a housing inlet port and a housing outlet port, said ports
27 communicating through the extrafilamentary space to define an extrafilament flow path, the extrafilament flow path being isolated from the filament flow path such that a material in one path may enter the other path only by molecular transport through the material comprising the hollow filaments; and b) introducing a volume of a gellable material into the housing in a manner such that it becomes positioned at least adjacent to the housing outlet port, the volume such that, upon gelling, the resulting gel will occupy a portion of the extrafilamentary space sufficient to restrict a fluid flowing through the housing outlet port.

27. The method of Claim 26 which further comprises gelling the gellable materialwhile flowing a sterile fluid through the filament flow path.
28. The method of Claim 26 wherein the gelling is controlled by temperature variation.
29. The method of Claim 27 wherein the gelling is controlled by varying the temperature of the sterile fluid.
30. The method of Claim 26 wherein the gel becomes positioned at least adjacent to the housing outlet port by gravity.
31. The method of Claim 26 wherein the gel becomes positioned at least adjacent to the housing outlet port by centrifugation.
32. The method of Claim 26 wherein the gel comprises a material selected from collagen, agarose, calcium alginate, chitosan acetate, a polyacrylamide, or a combination thereof.
33. The method of Claim 26 wherein the resulting gel occupies a portion of the extrafilamentary space sufficient to maintain a substantially uniform flow across the extrafilament flow path.
34. A bioreactor which comprises:
a) an elongate housing defining a central axis;
b) a plurality of elongate hollow filaments each positioned within the housing substantially parallel to the central axis and defining an extrafilamentary space within the housing, each of the hollow filaments formed of a material which allows molecular transport therethrough;
c) a filament inlet port and a filament outlet port, said ports communicating through the hollow filaments to define a filament flow path;
d) a housing inlet port and a housing outlet port, said ports communicating through the extrafilamentary space to define an extrafilament flow path, the extrafilament flow path being isolated from the filament flow path such that a material in one path may enter the other path only by molecular transport through the material comprising the hollow filaments; and e) a flow restrictor positioned in the extrafilament flow path to maintain a substantially uniform flow across the extrafilament flow path.
35. A bioreator of Claim 34 wherein the flow restrictor comprises a hydrogel.
36. A bioreactor of Claim 34 wherein the flow restrictor comprises a material selected from collagen, agarose, calcium alginate, chitosan acetate, a polyacrylamide, or a combination thereof.
37. A bioreactor of Claim 34 wherein the filaments are selected from filaments made of polysulfone, cellulose acetate, polyacrylonitrile, polymethylmethacrylate, or an ethylene polyvinyl alcohol copolymer.
38. An extracorporeal circuit comprising the bioreactor of Claim 1.
39. An extracorporeal circuit of Claim 38 wherein the cells are hepatocytes.
CA2262812A 1997-05-22 1998-05-13 Hollow fiber bioreactor comprising a hydrogel flow restrictor Expired - Fee Related CA2262812C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/861,503 US5955353A (en) 1997-05-22 1997-05-22 Hollow fiber bioreactor with an extrafilament flow plug
US08/861,503 1997-05-22
PCT/US1998/010111 WO1998053046A1 (en) 1997-05-22 1998-05-13 Bioreactor

Publications (2)

Publication Number Publication Date
CA2262812A1 true CA2262812A1 (en) 1998-11-26
CA2262812C CA2262812C (en) 2011-02-08

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CA2262812A Expired - Fee Related CA2262812C (en) 1997-05-22 1998-05-13 Hollow fiber bioreactor comprising a hydrogel flow restrictor

Country Status (9)

Country Link
US (1) US5955353A (en)
EP (1) EP0915965B1 (en)
JP (1) JP2000515391A (en)
AT (1) ATE231181T1 (en)
AU (1) AU738641B2 (en)
CA (1) CA2262812C (en)
DE (1) DE69810740T2 (en)
NZ (1) NZ333786A (en)
WO (1) WO1998053046A1 (en)

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Also Published As

Publication number Publication date
JP2000515391A (en) 2000-11-21
AU738641B2 (en) 2001-09-20
WO1998053046A1 (en) 1998-11-26
EP0915965B1 (en) 2003-01-15
NZ333786A (en) 2000-07-28
US5955353A (en) 1999-09-21
DE69810740D1 (en) 2003-02-20
ATE231181T1 (en) 2003-02-15
AU7494798A (en) 1998-12-11
DE69810740T2 (en) 2003-10-16
EP0915965A1 (en) 1999-05-19
CA2262812C (en) 2011-02-08

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