Monoclonal antibody specific for human basal cell surface antigen
First Claim
1. A monoclonal antibody that binds to an antigenic site on a protein characteristic of a human basal cell surface and a human malignant squamous cell and binding fragments of said antibody, wherein said protein is characterized as having a molecular weight of about 120,000 daltons as determined by polyacrylamide gel electrophoresis.
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention is concerned with novel monoclonal antibodies specific for an antigenic site on a protein characteristic of a human basal cell and a malignant squamous cell. The antibodies do not bind to mesenchymal cells such as fibroblasts and endothelial cells. The protein on the cell surface which binds to one of the antibodies has a molecular weight of about 120,000 as determined by one dimensional gel electrophoresis. The antibodies find use in diagnostic methods such as the detection of malignant cells, e.g., the detection of residual tumor cells in skin subjected to microscopically-controlled surgery.
-
Citations
10 Claims
- 1. A monoclonal antibody that binds to an antigenic site on a protein characteristic of a human basal cell surface and a human malignant squamous cell and binding fragments of said antibody, wherein said protein is characterized as having a molecular weight of about 120,000 daltons as determined by polyacrylamide gel electrophoresis.
-
3. A hybrid continuous cell line having the identifying characteristic of A.T.C.C. HB8530.
-
4. A method for determining the presence of a malignant condition in tissue, which comprises
(a) contacting a specimen of tissue suspected of a malignant condition with an antibody that binds to an antigenic site characteristic of a human basal cell, said tissue usually not containing normal basal cells, said antibody being capable of binding to human normal and malignant basal cells and human malignant squamous cells and capable of distinguising such cells from other cell types in said specimen, under conditions for binding of said antibody to said specimen, and (b) observing the presence of binding of said antibody to said specimen, said binding being related to the presence of a malignant condition in said tissue.
-
10. In an in vitro method of microscopically controlled surgery to remove a tumor wherein a clinically visible tumor is removed surgically and the next layer of tissue is excised and checked for residual tumor cells with a light microscope, the improvement wich comprises using a monoclonal antibody that binds to an antigenic site characteristic of a human normal and malignant basal cell surface and a human malignant squamous cell to detect residual tumor cells, the area adjacent said tumor cells usually not containing normal basal cells.
Specification