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Several novel tropolone derivatives have been identified that inhibit HIV-1 RNase H function and have potential for anti-viral activity due to reduced cellular toxicity.  Inhibiting RNase H function is a potential treatment for many viral infections, since RNase H function is essential for viral replication for many pathogenic retroviruses such as HIV-1 and HIV-2.  Although many hydroxytropolone compounds are potent RNase H inhibitors biding at the enzymatic active site, they are limited as therapeutic candidates by their toxicity in mammalian cells.  The toxicity thought to

It is well known that overactive Ras signaling is linked to many forms of cancer, and despite intensive efforts worldwide to develop effective inhibitors of Ras, to date there is no anti-Ras inhibitor in clinical use.

The subject invention describes a new class of compounds (such as peptides or mimetics) that target viral RNAs and inhibit the viral life cycle by blocking the viral recognition process. More specifically, these compounds are the first against an RNA Target - currently there are no clinical drugs against RNA targets in the treatment of any type of human disease.

The National Cancer Institute’s Protein Expression Laboratory seeks parties to co-develop dual luminescent/fluorescent cancer biomarkers.

In research settings, visualization of  tumors or tumor cells is often done using either bioluminescence or fluorescence.  However, both of these methods have shortcomings: bioluminescence is not sensitive enough to sort individual tumor cells, and fluorescence cannot be used effectively to view internal tumors and is best used with surface tumors.

HMGN polypeptides belong to the high mobility group (HMG) family of chromosomal binding peptides. HMGN polypeptides typically function inside the cell nucleus to bind to DNA and nucleosomes and regulate the transcription of various genes. HMGN polypeptides also can be released by peripheral blood mononuclear cells. However, the extracellular release of a HMGN polypeptide initiates activation of the immune system. Therefore, it has potential use as a biological therapeutic for stimulating an immune response.

Molecular imaging is a disease-specific targeting modality that promises much more accurate diagnoses of serious diseases such as cancer and infections. Agents are being continually developed with a view to clinical translation, with several such therapies requiring measurement of very small doses. Currently, there is no way of accurately measuring small amounts of radioactivity used in many pre-clinical tracer studies, as on-the-market commercial dose calibrators measure at too high a dose range, typically at 10-1000 µCi and higher.

This technology from the NCI Molecular Imaging Program relates to a Zirconium-89 (89Zr)-oxine complex for cell labeling, tracking of labeled cells by whole-body positron emission tomography/computed tomography (PET/CT) imaging, and associated methods. A long half-life of 89Zr (78.4 hours), high sensitivity of PET, and absence of background signal in the recipient enable tracking cells over a week using low levels of labeling radioactivity without causing cellular toxicity.