Abstract: The present invention relates to the biomarker TFF-3 that measures ?-secretase mediated Notch processing. TFF-3 has utility in predicting and/or determining in vivo Notch-related toxicity associated with inhibition of Notch processing mediated by ?-secretase. The reagents and methods of the invention can be utilized before, after, or concurrently with, pre-clinical, clinical, and/or post-clinical testing. The reagents and methods of the invention can be used to identify and maintain preferred doses of test compounds and thereby prevent medical complications, such as gastrointestinal cellular damage.

Abstract: The present invention relates to the biomarker TFF-3 that measures ?-secretase mediated Notch processing. TFF-3 has utility in predicting and/or determining in vivo Notch-related toxicity associated with inhibition of Notch processing mediated by ?-secretase. The reagents and methods of the invention can be utilized before, after, or concurrently with, pre-clinical, clinical, and/or post-clinical testing. The reagents and methods of the invention can be used to identify and maintain preferred doses of test compounds and thereby prevent medical complications, such as gastrointestinal cellular damage.

Abstract: The present invention relates to the biomarker TFF-3 that measures ?-secretase mediated Notch processing. TFF-3 has utility in predicting and/or determining in vivo Notch-related toxicity associated with inhibition of Notch processing mediated by ?-secretase. The reagents and methods of the invention can be utilized before, after, or concurrently with, pre-clinical, clinical, and/or post-clinical testing. The reagents and methods of the invention can be used to identify and maintain preferred doses of test compounds and thereby prevent medical complications, such as gastrointestinal cellular damage.

Abstract: The present invention relates to the biomarker TFF-3 that measures ?-secretase mediated Notch processing. TFF-3 has utility in predicting and/or determining in vivo Notch-related toxicity associated with inhibition of Notch processing mediated by ?-secretase. The reagents and methods of the invention can be utilized before, after, or concurrently with, pre-clinical, clinical, and/or post-clinical testing. The reagents and methods of the invention can be used to identify and maintain preferred doses of test compounds and thereby prevent medical complications, such as gastrointestinal cellular damage.

Abstract: The present invention relates to the biomarker TFF-3 that measures ?-secretase mediated Notch processing. TFF-3 has utility in predicting and/or determining in vivo Notch-related toxicity associated with inhibition of Notch processing mediated by ?-secretase. The reagents and methods of the invention can be utilized before, after, or concurrently with, pre-clinical, clinical, and/or post-clinical testing. The reagents and methods of the invention can be used to identify and maintain preferred doses of test compounds and thereby prevent medical complications, such as gastrointestinal cellular damage.

Abstract: The present invention relates to the biomarker TFF-3 that measures ?-secretase mediated Notch processing. TFF-3 has utility in predicting and/or determining in vivo Notch-related toxicity associated with inhibition of Notch processing mediated by ?-secretase. The reagents and methods of the invention can be utilized before, after, or concurrently with, pre-clinical, clinical, and/or post-clinical testing. The reagents and methods of the invention can be used to identify and maintain preferred doses of test compounds and thereby prevent medical complications, such as gastrointestinal cellular damage.

Abstract: The present invention provides a method for inhibiting cell proliferation in a cell comprising contacting the cell with a nucleic acid sequence or a polypeptide having essentially the sequence of the &bgr;1C integrin. Also included in the invention are peptides consisting of amino acid residues which are the size of or fewer than the sequence of the cytoplasmic domain of the &bgr;1C integrin consisting essentially of the amino acid sequence of SEQ ID NO:1 and SEQ ID NO:2, and functional fragments thereof which are useful for inhibiting cellular proliferation. Peptides, polynucleotides, and antibodies immunoreactive with the peptides, and methods of use for inhibiting cell growth are also provided.