It is frequently observed in head and neck squamous cell carcinoma (HNSCC), a cancer occurring mostly in the mouth, that the Akt/mTOR pathway is abnormally activated. Therefore, inhibiting this signaling pathway may help in treating this disease. Rapamycin and its analogs are known to inhibit the activity of mTOR so in principle they could serve as therapeutics for treating HNSCC.

PTEN is a tumor suppressor gene that is frequently deleted or mutated in a variety of human cancers, including prostate, breast, endometrial, lung, and ovarian cancers. In prostate cancer cells, PTEN deletion is the most common event observed. The loss of PTEN is thought to play and important role in tumor cell proliferation and metastasis due to a lack of control of the signaling pathways that mediate cellular processes such as apoptosis and migration.

Scientists at the National Institutes of Health have developed mouse monoclonal antibodies against the human spindle assembly checkpoint protein, MAD1. The spindle assembly checkpoint in mitotic cell division regulates the fidelity of chromosome segregation during cell division. MAD1 is an important component of this checkpoint control, which if compromised, can lead to the initiation of cancer cell growth. These monoclonal antibodies are the first available antibodies against MAD1 and can be used in laboratory research and diagnostics.

This invention includes methods for treating or ameliorating fibrosis by inhibiting the interaction between IL-21 Receptor (IL-21R) and IL-21 using either anti-IL-21R monoclonal antibodies (or binding fragments of anti-IL-21R mAbs), anti-IL-21 monoclonal antibodies (or binding fragments of anti-IL-21 mAbs) or soluble IL-21R (or binding fragments of IL-21R). It is believed that the TH2 immune response, induced by IL-21, plays a major role in the in the pathogenesis of tissue fibrosis.

Targeted toxins (TT) are hybrid protein drugs consisting of ligands that bind to the surface of cancer cells and deliver polypeptide toxins that kill malignant cells by inactivating cytosolic protein synthesis and inducing cell death. A major challenge in the construction of targeted toxins is reducing the nonspecific binding of the toxin moiety to normal tissues and increasing the cytotoxicity of the treatment.

Available for licensing is a mouse model that constitutively expresses human interleukin-21 (IL-21). Traditionally, human IL-21 transgenic mouse models are difficult to produce as those with high IL-21 levels exhibit growth retardation and die before sexual maturity. The investigators generated transgenic mice that express human IL-21, which can stimulate murine cells in vitro thereby providing an accurate model to elucidate IL-21's role in immunity, immune disorders, and cancer.

NIH investigators have discovered a series of small compounds with the potential to treat a variety of cancers as well as hemolytic anemia. Contrary to most cancer medications, these molecules can be non-toxic to normal cells because they target a protein specific to the metabolic pathways in tumors, thus representing a significant clinical advantage over less-specific chemotherapeutics.

Cryopreservation using liquid nitrogen frozen polyvinyl bags allows for storing cellular materials for extended periods while maintaining their activity and viability. Such bags are commonly used in the clinic to store blood products including blood cells, plasma, hematopoietic stem cells, umbilical cord blood for future uses including transplantation. These materials, typically obtained in limited quantities, may be of great therapeutic value, as is the case of stem cells or cord blood derived cells which can be used to potentially treat a number of diseases.

Squamous Cell Carcinoma of the Head and Neck (HNSCC) is associated with poor prognosis due to the advanced stage of disease (metastasis) typically found at the time of diagnosis. Investigators at the NIH have developed a sensitive method using a protein biomarker for detecting even just a few HNSCC tumor cells in lymph nodes with occult disease.

One of the major limitations of using cultured keratinocytes for research studies is that primary keratinocytes senesce after a few passages. Keratinocytes from specific anatomical sites are also difficult to culture. Scientists at the NIH have demonstrated that primary keratinocytes, from several anatomical sites, when treated with a small-molecule inhibitor of the ROCK protein maintain a proliferative state and become immortal without genetic modification to the cells.