Abstract: Provided are methods for prognostic prediction of metastasis. The method comprises identifying the presence or absence of a fragile site FRA12E in 12q24 at the SMRT gene locus. The presence of FRA12E in an individual can be determined in cell samples obtained from an individual by hybridization techniques such as fluorescence in situ hybridization techniques or by analyzing alterations of expression of the SMRT gene. The presence of this FRA12E is indicative of higher likelihood of metastasis than if this fragile site is absent.

Abstract: A method is provided for identifying an individual as having altered vitamin D metabolism comprising analyzing a biological sample from the individual for the presence of CYP24 SNPs and/or aberrantly spliced CYP24 mRNA. The presence of the SNPs and/or the aberrantly spliced CYP24 mRNA indicates that the individual has altered vitamin D metabolism. Also provided are methods for customizing dosages of biologically active vitamin D compounds for individuals who are determined to have altered vitamin D metabolism.

Abstract: Provided are methods for prognostic prediction of metastasis. The method comprises identifying the presence or absence of a fragile site FRA12E on chromosome 12q24 at the SMRT gene locus. The presence of FRA12E in an individual can be determined in cell samples obtained from the individual by hybridization techniques such as fluorescence in situ hybridization techniques. The presence of this fragile site at this locus is indicative of higher likelihood of metastasis than if the fragile site is absent. Also provided are kits for the determination of likelihood of metastasis.

Abstract: The present invention provides a method for reducing the severity of, or treatment of, plasma cell disorders. The method comprises the step of administering to an individual afflicted with a plasma cell disorder, a composition comprising an antibody directed to the extracellular portion of NOTCH or to JAG2.

Abstract: The present invention relates to methods for detection of chromosomal alterations which are associated with the presence of various leukemias and lymphomas. The method comprises the steps of obtaining a biological sample comprising lymphocytes from an individual and assaying the sample to detect chromosomal deletions in the regions of chromosome 13 that corresponds to the region of chromosome 13 present in the RP11-147H23 or RP11-327P2.

Abstract: The present invention is based on the finding that plasma cell disorders such as Multiple Myeloma and Monoclonal Gammopathy of Unknown Significance are characterized by an increase in the expression of JAG2. Accordingly, the present invention provides a method for diagnosis of plasma cell disorders by detecting the expression or overexpression of JAG2. The expression or overexpression of JAG2 may be detected as increased mRNA transcripts or increased protein.