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US4618585A Expired / Lapsed US ⏱️ 0.0 years remaining

Hybridoma cell lines producing monoclonal antibodies directed against cervical cancer cells

Assignee: The University of Texas System
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Filing: 1984-07-16
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Granted: 1986-10-21
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Expires: 2004-07-16
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Abstract

Abstract Continuous hybrid cell lines for producing monoclonal antibodies, the antibodies specific for an antigenic determinant unique to cervical cancer cells, have been developed. The hybrid cell lines were established by fusing differentiated lymphoid cells primed with intact human cervical cancer cells with myeloma cells, particularly plasmacytoma cells. The resulting fused hybrid cells were cultured in HAT tissue culture media which included a small concentration of deoxycytidine. Deoxycytidine was found to enhance the growth of the hybrid cells and subsequent yield of monoclonal antibodies secreted therefrom. Hybrid cell lines secreting monoclonal antibodies to antigenic determinants unique for human cervical cancer cells can be maintained indefinitely in culture to produce large amounts of homogenous anti-cervical cancer cell antibody.

Inventors

  • 👤 Teh-sheng Chan

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 02:40
CPC Classifications
C; C07; C07K; C07K16/00; C07K16/18; C07K16/28; C07K16/30; A; A61; A61K; A61K38/00

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 29 words
A continuous hybrid cell line having ATCC deposit number HB8563 and clones thereof, which cell line produces monoclonal antibody to an antigenic determinant unique to HeLa cervical cancer cells.
Claim 2
Dependent Claim 29 words
A continuous hybrid cell line having ATCC deposit number HB8563 and clones thereof, which cell line produces monoclonal antibody to an antigenic determinant unique to HeLa cervical cancer cells.
Claim 3
Dependent Claim 26 words
Monoclonal antibodies to an antigenic determinant unique to HeLa cervical cancer cells, the monoclonal antibodies produced from hybrid cell line ATCC deposit HB8563 and clones thereof.
Claim 4
Dependent Claim 26 words
Monoclonal antibodies to an antigenic determinant unique to HeLa cervical cancer cells, the monoclonal antibodies produced from hybrid cell line ATCC deposit HB8563 and clones thereof.

References Cited (Backward Citations)

US4196265A Cited
US4172124A Cited
US4271145A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1989-10-20 1990-04-21 1990-10-21 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1993-10-20 1994-04-21 1994-10-21 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1997-10-20 1998-04-21 1998-10-21 $7700.00 Window Closed / Lapsed

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