Scientists at the National Cancer Institute's Molecular Targets Laboratory have discovered that Cnidarins as a novel class of highly potent proteins capable of blocking the HIV virus from penetrating T-cells. Cnidarins were found in a soft coral collected in waters off Australia's northern coast. Cnidarins can block virus fusion/entry but do not block viral attachment. In addition, Cnidarins do not have lectin-like activity and therefore possibly a unique mechanism of action.

Heptamethine cyanines are among the most widely used near-IR fluorophores. The near-IR range (between about 650 nm and 900 nm) is very useful for imaging applications due to the absence of background autofluorescence. Despite extensive use, many of these fluorophores suffer from chemical instability. Specifically, most of the current and commonly used fluorophores undergo a phenoxy to thiol exchange reaction in the presence of primary thiols. This exchange reaction is problematic during conjugation reactions of cysteine containing macromolecules.

Advanced colorectal carcinoma is currently incurable, and new therapies are urgently needed. Ephrin (Eph) receptors are a clinically relevant class of receptor tyrosine kinases. Related signaling pathways are associated with oncogenesis of a number of cancers. NCI investigators found that phosphotyrosine-dependent Eph receptor signaling sustains colorectal carcinoma cell survival, thereby uncovering a survival pathway active in colorectal carcinoma cells.

Gene therapy is a promising strategy to treat a wide range of human diseases, and several gene therapy vectors have been developed to deliver these novel treatments. However,  risks and challenges of using these vectors remain, such as: gene integration, potential infection, immune response and maintaining long term, stable gene expression. Human artificial chromosomes (HACs) provide a unique opportunity to develop a new generation of nonviral vectors for therapeutic use as gene expression and delivery systems.

Thymoma and thymic carcinomas are a rare and poorly understood group of malignancies.   Despite the growing number of biomarkers that are used for diagnosing and treating carcinomas in general, cancers of the thymus are still diagnosed, stratified and treated by a costly combination of histology, surgery and radiological procedures.  The lack of qualified biomarkers associated with thymomas and thymic carcinomas has also hampered the development of targeted therapies.

Mesothelioma is an aggressive cancer covering anatomic surfaces (e.g. lining of the lungs, heart, abdomen, etc.) that resists multi-modality therapies. Regional recurrence of mesothelioma from residual tumor cells prevents long-term benefits after surgical resection. Furthermore, there is no clinical consensus on intracavitary adjuvants that are effective in extending the tumor reduction effect of surgery.

T cell-based immunotherapy (such as CAR therapies) is a promising approach for the treatment of several cancers. However, T cells currently employed for various T cell-based immunotherapies are usually senescent and terminally differentiated leading to poor proliferative and survival capacity, limiting their therapeutic effectiveness once transferred into a patient’s blood. 

Cancer cells can spread to various regions in the body in a process called metastasis which is associated with non-responsive to treatment and thus reduced survival. Identifying the markers of metastasis has been a major concern in the field of cancer diagnosis and therapy. Interestingly, research has shown that there is an increase in myeloid progenitors and myeloid cells at various stages of metastasis in an attempt by the immune system to  suppress cancer cells. This presents a promising technology for cancer immunotherapy.

Triple negative (progesterone receptor (PR)-, estrogen receptor (ER)-, human epidermal growth receptor 2 (HER2)-) breast cancer (TNBC) is an aggressive subtype that affects 15-20% of the 1.7 million cases of breast cancer occurring annually.  Currently, standard treatments of TNBC include cytotoxic chemotherapies, surgery, and radiation. However, TNBC readily becomes resistant to chemotherapy, and those with TNBC are more likely to have a recurrence or die within five years compared to those with other breast cancer types.

A child's growth is dependent on the proper functioning of the growth plate, a specialized cartilage structure located at the ends of long bones and within the vertebrae. The primary function of the growth plate is to generate new cartilage, which is then converted into bone tissue and results in the lengthening of bones. Failure of the growth plate to function properly can result in short stature or sometimes a skeletal dysplasia, such as achondroplasia, in which the bones are not just short but also malformed.