In-vivo stimulation, collection, and modification of peritoneal macrophage

• US 4,878,895 A
• Filed: 09/26/1988
• Issued: 11/07/1989
• Est. Priority Date: 09/26/1988
• Status: Expired due to Fees

• Current Assignee: The United States of America As Represented By The Secretary of Agriculture
• Original Assignee: United States Department Of Agriculture
• Inventors: Cross, Debra A., Klesius, Phillip H.
• Primary Examiner(s): Pellegrino, Stephen C.
• Application Number:
  US07/248,744
• Time in Patent Office: 407 Days
• Field of Search: 604/49, 604/6, 604/29, 604/93, 604/317, 604/328, 128/769, 128/749, 128/760, 128/899
• US Class Current: 604/328
• CPC Class Codes: A61B 10/02 Instruments for taking cell samples or for biopsy A61B10/0038 and A61B10/0045 take precedence; needle locating or guiding means A61B17/3403; samplers for enzymology or microbiology C12M1/26; sampling or preparing biological specimens G01N33/48
• CPC Class Codes: A61M 1/1678 intracorporal peritoneal dialysis A61M1/28
• CPC Class Codes: A61M 1/3679 by absorption A61M1/3675 takes precedence
• CPC Class Codes: A61M 2202/0443 Macrophages, e.g. monocytes
• CPC Class Codes: A61M 39/0208 Subcutaneous access sites for injecting or removing fluids transcutaneous access sites A61M39/0247; implantable infusion devices A61M5/14276

Abstract

The instant invention pertains to improvements in processes and apparatus for stimulating, collecting, and optionally modifying, macrophages from the peritoneal cavity of a vertebrate.

Claims

1. An apparatus for collection of macrophage from the peritoneal cavity of a vertebrate including,

container means consisting essentially of membrane means, completely enclosing therein an interior volume, for excluding tissue growth into said interior volume and for permitting permeation of macrophage through said membrane means into said interior volume, and

cell supporting means filling at least a portion of said interior volume.

4. The apparatus of either claim 1 or 2 further including a conduit, in fluid tight sealed relationship to said membrane means, and in fluid communication with said interior volume.

5. The apparatus of claim 4 further including an injection reservoir in fluid tight sealed relationship to said conduit, said injection reservoir having at least a portion thereof puncturable by a hollow needle and self sealing to a track of a hollow needle.

6. The apparatus of either claim 1 or 2 further including two conduits, each in fluid tight sealed relationship to said membrane means, and each in fluid communication with said interior volume.

7. The apparatus of claim 6 wherein a first of said conduits is connected to a female adapter, and a second of said conduits is connected to a male adapter interfittable into said female adapter.

8. The apparatus of either claim 1 or 2 wherein said container means is spherical.

9. The apparatus of either claim 1 or 2 wherein said container means has,

a substantially rectangular outwardly convex front which defines at least one aperture, and is sealingly joined to both:

two rectangularly shaped ends; and

to two sides each having the shape of an arched band,

said two sides each defining at least one aperture, and

a substantially rectangular inwardly concave back which is sealingly joined to said ends and sides.

10. The apparatus of claim 9 further including, a conduit in fluid tight sealed relationship to a central portion of a first of said ends, and flow directing means including two shoulders each tapered from, a relatively large thickness at a portion of each shoulder adjacent a said side, to a relatively small thickness at a portion of each said shoulder adjacent said conduit.

11. The apparatus of either claim 1 or 2 further including a chemotactic substance combined with said cell supporting means.

12. The apparatus of either claim 1 or 2 wherein said cell supporting means comprises a plurality of spheres.

13. The apparatus of either claim 1 or 2 wherein said cell supporting means is of a material selected from the group consisting of glass, plastic or chemically fixed collagen.

14. The apparatus of either claim 1 or 2 wherein said membrane means defines pore diameters of about 6 to about 20 microns.

15. The apparatus of claim 14 wherein said membrane means defines pore diameters of about 8 to about 16 microns.

16. The apparatus of claim 15 wherein said membrane means defines pore diameters of about 8 microns.

17. A process for collection of macrophage from the peritoneal cavity of a vertebrate comprising,

implanting within the peritoneal cavity of a vertebrate the apparatus of claim 1,

permitting macrophage to permeate through said membrane means into said interior volume, and

removing the permeated macrophage from said interior volume externally of said vertebrate

20. The process of either claim 17 or 18 further including, antigen priming the removed permeated macrophage to arm the macrophage against at least one antigen, and introducing the antigen primed macrophage into a vertebrate.

21. The process of claim 20 wherein said antigen priming is selected from the group consisting of, coculturing the removed permeated macrophage with at least one antigen or transferring at least one gene to the removed permeated macrophage.

22. The process of either claim 17 or 18 further including the step of combining a chemotactic substance with said cell supporting means.

2. An apparatus for collection of macrophage from the peritoneal cavity of a vertebrate including:

container means including;

a housing of a material which is impermeable to tissue ingrowth and defining at least one aperture;

membrane means, sealing fluid tight said at least one aperture whereby said housing and membrane means cooperate to completely enclose therein an interior volume, for excluding tissue growth through said at least one aperture into said interior volume and for permitting permeation of macrophage through said membrane means into said interior volume, whereby said housing and said membrane means cooperate to exclude tissue growth into said interior volume; and

cell supporting means filling at least a portion of said interior volume.

3. The apparatus of claim 2 further including a macrophage permeable interior membrane means within said interior volume, said interior membrane means encompassing said cell supporting means.

18. A process for collection of macrophage from the peritoneal cavity of a vertebrate comprising,

implanting within the peritoneal cavity of a vertebrate the apparatus of claim 2,

permitting macrophage to permeate through said membrane means into said interior volume, and

removing the permeated macrophage from said interior volume externally of said vertebrate.

19. The process of claim 18 wherein said collector apparatus includes a macrophage permeable interior membrane means within said interior volume, said interior membrane means encompassing said cell supporting means.

23. A process comprising,

implanting within the peritoneal cavity of a vertebrate a macrophage collector means,

collecting macrophage within said macrophage collector means,

removing macrophage from said macrophage collector, means externally of said vertebrate,

antigen priming the removed macrophage to arm the removed macrophage against at least one antigen, and

introducing the antigen primed macrophage into a vertebrate.

24. The process of claim 23 wherein said antigen priming is selected from the group consisting of, coculturing said removed macrophage with at least one antigen, coculturing said removed macrophage with at least one monocyte activator, or transferring at least one gene to said removed permeated macrophage.