Abstract: The present disclosure provides methods of improving sequencing analysis and/or extracting nucleic acids, as well as methods, kits, and reagents for detecting nucleic acid molecules extracted from samples in tissues. The disclosure also provides methods for evaluating, identifying, assessing, and/or treating an individual having a cancer.

Abstract: Isolated GDF-9 regulatory sequences are disclosed, as well as methods of using the sequences to modulate tissue-specific expression of genes. The GDF-9 regulatory sequences include, for example, enhancer and promoter elements that naturally drive transcription of GDF-9 in specific tissues. The GDF-9 regulatory sequences can be derived from the untranscribed upstream (e.g., first 10 kilobases) and downstream regions, and transcribed, untranslated regions of a GDF-9 gene.

Abstract: The present invention relates to a method of identifying an agent which alters (inhibits, enhances) activity of GDF-9. The method involves combining cells having a receptor for GDF-9 and a gene, wherein expression of the gene is regulated by binding of GDF-9 to the receptor; GDF-9; and an agent to be assessed. The combination produced is maintained under conditions appropriate for binding of GDF-9 to the receptors on the cells. The extent to which binding of GDF-9 to the receptors on the cells occurs is then determined, wherein binding of GDF-9 to the receptor to a lesser or greater extent in the presence of the agent to be assessed than in its absence, is indicative of an agent which alters GDF-9 activity.