Engineering Neural Stem Cells Using Homologous Recombination

Methods for modifying the genome of a Neural Stem Cell (NSC) are disclosed. Also, methods for differentiating NSCs into neurons and glia are described. NSCs are multipotent, self-renewing cells found in the central nervous system, capable of differentiating into neurons and glia. NSCs can be generated efficiently from pluripotent stem cells (PSCs) and have the capacity to differentiate into any neuronal or glial cell type of the central nervous system.

Chimeric Antibodies Against Hepatitis B e-Antigen

The invention relates to recombinant chimeric rabbit/human monoclonal antibody fragments (Fabs) against hepatitis B Virus e-antigen (HBeAg), notably Fab me6. Viral hepatitis is the seventh leading cause of death worldwide. Hepatitis B core antigen (HBcAg) forms an icosahedral structure containing the viral genome. Both the HBcAg and the HBeAg of interest here are expressed by two different start codons of the viral C gene. Unlike the related HBcAg which activates type 1 T helper (Th1) cells leading to immune attack, the HBeAg activates Th2 cells which promote immune tolerance.

Locally Delivered Alkaline Phosphatase for Treatment of Periodontal Disease

This technology includes a product for local delivery of alkaline phosphatase for the treatment of periodontal disease. Our laboratory has discovered that factors regulating phosphate metabolism and specifically the appropriate balance between phosphate (Pi) and pyrophosphate (PPi) at local sites are needed for formation (development), maintenance and regeneration of the tooth root surface (cementum), periodontal ligament (PDL) and surrounding alveolar bone, i.e., the periodontal apparatus.

Treatment of Periodontal Disease via ENPPI Inhibition

This technology focuses on enhancing cementum production, a key component in treating periodontal regression. The method involves inhibiting ectonucleotide pyrophosphatase phosphodiesterases (ENPP1), enzymes that play a significant role in mineralization processes. Pyrophosphate (PPi) is known to impede the growth of hydroxyapatite crystals, essential for mineralization. ENPP1 catalyzes the hydrolysis of ATP, generating PPi, which then hinders mineralization.

DLX3 Knockout Mice for the Study Mouse Models of Tooth, Hair, and Epidermal Defects

This technology includes K14creDLX3 conditional knockout (cKO) mice which will be used to study ectodermal dysplasia disorders such as Amelogenesis Imperfecta, and to study molecular mechanisms of DLX3 regulation in skin and ectodermal appendages. DLX3 is expressed in the epidermis, hair matrix cells in the hair follicle and in the mesenchymal and epithelial compartment of the tooth during embryonic development. To determine the transcriptional network dependent on DLX3-function, we will generate and analyze an epithelial-specific conditional knockout of DLX3.

Subscribe to NIAMS