Assays for functional nuclear receptors
First Claim
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1. A method of detecting the presence or absence of functional nuclear receptors in a cell or tissue sample, or of detecting and quantitating functional nuclear receptors in a cell or tissue sample comprising:
- (a) contacting said sample with the following;
(1) ligand to which the nuclear receptor under assay binds;
(2) antibody that is capable of specifically binding to the nuclear receptor under assay when said receptor is bound both to its associated ligand and response element; and
(3) a nucleic acid reagent containing one or more response element segments to which the nuclear receptor under assay binds;
wherein either said antibody or said nucleic acid reagent is attached to a solid phase, and wherein the sample may be contacted with the ligand, the nucleic acid reagent and the antibody components simultaneously, with two of said components simultaneously, or sequentially with said three components in any order; and
(b) correlating the specific binding of said nucleic acid reagent, said ligand and said antibody to a substance in said sample with the presence of functional nuclear receptors in said sample, or correlating the amount of complexes formed by the specific binding of said nucleic acid reagent, said ligand, said antibody and a substance in said sample with the amount of functional nuclear receptors in said sample.
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Abstract
Methods and test kits for detecting, or detecting and quantitating functional nuclear receptors in cell or tissue samples are disclosed. Such methods provide highly sensitive assays requiring small sample sizes and short turnaround times. The methods are useful in developing prognoses and/or treatment programs for cancer patients, especially in determining whether therapy to interfere with the receptor'"'"'s activation of gene transcription, such as, endocrine therapy, would be helpful.
85 Citations
64 Claims
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1. A method of detecting the presence or absence of functional nuclear receptors in a cell or tissue sample, or of detecting and quantitating functional nuclear receptors in a cell or tissue sample comprising:
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(a) contacting said sample with the following;
(1) ligand to which the nuclear receptor under assay binds;
(2) antibody that is capable of specifically binding to the nuclear receptor under assay when said receptor is bound both to its associated ligand and response element; and
(3) a nucleic acid reagent containing one or more response element segments to which the nuclear receptor under assay binds;
wherein either said antibody or said nucleic acid reagent is attached to a solid phase, and wherein the sample may be contacted with the ligand, the nucleic acid reagent and the antibody components simultaneously, with two of said components simultaneously, or sequentially with said three components in any order; and(b) correlating the specific binding of said nucleic acid reagent, said ligand and said antibody to a substance in said sample with the presence of functional nuclear receptors in said sample, or correlating the amount of complexes formed by the specific binding of said nucleic acid reagent, said ligand, said antibody and a substance in said sample with the amount of functional nuclear receptors in said sample. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64)
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Specification