Living, fast-growing thyroid cell strain, FRTL-5
First Claim
1. A process for preparing a continuous, functional rat cell strain, having the identifying characteristics of FRTL-5 ATCC CRL 8305 cell strain, comprising:
- culturing a continuous, functional rat cell line FRTL in a medium comprising thyrotropin and calf serum to obtain FRTL-5 cells and cloning said FRTL-5 cells to obtain cells of an FRTL-5 strain having the identifying characteristics of FRTL-5 ATCC CRL 8305 cell strain.
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Abstract
A fast growing, continuous, functional rat thyroid cell strain, FRTL-5, which maintains functional characteristics of iodide uptake and thyroglobulin synthesis over prolonged periods of culture is cloned from FRTL cells obtained from primary cultures of Fischer rat thyroid glands. The FRTL-5 cells are cultured in a medium containing approximately 5 percent calf serum supplemented with a mixture of hormones, at least one of which is thyrotropin.
The FRTL-5 cells are employed in a series of assays which measure thyroid stimulatory or inhibitory factors. The FRTL-5 system of assay specifically measures thymidine incorporation, cAMP elevation and iodide uptake and permits the evaluation of patient sera, particularly those afflicted with Graves'"'"' disease and other autoimmune thyroid diseases, thereby providing a means for determining appropriate methods of treatment.
10 Citations
10 Claims
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1. A process for preparing a continuous, functional rat cell strain, having the identifying characteristics of FRTL-5 ATCC CRL 8305 cell strain, comprising:
culturing a continuous, functional rat cell line FRTL in a medium comprising thyrotropin and calf serum to obtain FRTL-5 cells and cloning said FRTL-5 cells to obtain cells of an FRTL-5 strain having the identifying characteristics of FRTL-5 ATCC CRL 8305 cell strain. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A continuous, functional rat thyroid cell strain, FRTL-5, having the accession number ATCC CRL 8305.
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10. A continuous, functional rat thyroid cell strain having the identifying characteristics of FRTL-5 ATCC CRL 8305 cell strain.
Specification