Tissue-specific monoclonal antibodies

Abstract:

Methods of isolating and purifying caveolae, microdomains of GPI-anchored proteins, and membranes consisting essentially of caveolae associated with microdomains of GPI-anchored proteins from endothelial cell membranes are disclosed. The methods comprise coating a luminal surface of an endothelial cell membrane with an adherent first ionic material (e.g. (cationic) colloidal silica) by perfusion from a luminal cavity adjacent to the endothelial cell membrane, forming a pellicle by contacting the first ionic material with a second ionic material, (e.g. acrylic polymer) and isolating and purifying the pellicle. The pellicle is then processed to isolate the desired cellular component. Caveolae which are substantially free of microdomains of GPI-anchored proteins; microdomains of GPI-anchored proteins which are substantially free of caveolae; and membranes consisting essentially of caveolae, microdomains of GPI-anchored proteins, and caveolae associated with the microdomains of GPI-anchored proteins; all of which are substantially free of other cellular elements are also disclosed.

Citations

5281700 5602005

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Claims:

What is claimed is:

1. Monoclonal antibody 833 produced by the hybridoma having ATCC accession No. PTA-542.

Patent number:
6255457
View patent at USPTO

Filing date:
June 25, 1998

Issue date:
July 3, 2001

Inventor:
Jan E. Schnitzer (Encinitas, CA)

Assignee:
Beth Israel Deaconess Medical Center (Boston, MA)

Primary Examiner:
Susan Ungar

Attorney, Agent or Firm:
Hamilton, Brook, Smith & Reynolds, P.C.

Current U.S. Classification: 530/387.1 530/388.1