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Extracellular Vesicles (EVs), including exosomes and microvesicles, are nanometer-sized membranous vesicles that can carry different types of cargos, such as proteins, nucleic acids and metabolites. EVs are produced and released by most cell types. They act as biological mediators for intercellular communication via delivery of their cargos. This unique ability spurred translational research interest for targeted delivery of therapeutic molecules to treat a wide range of diseases. EVs also contain interesting information of their specific cellular origin.

Multi-parameter flow cytometry has been extensively used in multiple disciplines of biological discoveries, including immunology and cancer research. However, the disadvantage of traditional flow cytometry platforms using excitation lasers and fluorescence detectors is spectral overlap when using multiple dyes on the same biological sample. Metaethical compensation of spectral overlap could only be effective to a certain degree. Mass cytometry is advantageous compared to flow cytometry but is pricey and requires highly skilled operators. 

This technology includes a straightforward and versatile nanotechnology-based approach for in situ therapeutic vaccination that exploits a primary tumor as a vaccine depot to initiate robust personalized anti-tumor immune responses.

This technology includes the creation of DLX3-floxed mice, specifically designed for conditional deletion of the DLX3 gene via Cre-mediated recombination. This innovative approach aims to develop mouse models for studying ectodermal dysplasia disorders. Ectodermal dysplasias are a diverse group of genetic conditions affecting the development of ectodermal structures, including hair, teeth, and bones. The DLX3f/f mice are particularly valuable for modeling specific disorders such as Tricho-dento-osseous syndrome (TDO), Amelogenesis Imperfecta (AI), and Dentinogenesis Imperfecta (DI).

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.

Big data usually means big sample size with many outliers, in which traditional scalable L2-norm principal component analysis (L2-PCA) will fail. Current existing L1-norm PCA (L1-PCA) methods can improve robustness over outliers, however, its scalability is usually limited in either sample size or dimension size.  The inventor proposes an online flipping method to solve L1-PCA challenges, which is not only convergent asymptotically (or with big data), but also achieves most efficiency in the sense each sample is visited only once to extract one principal component (PC).

Summary: 
The National Eye Institute seeks research co-development partners and/or licensees for novel methods of cryopreserving cells, tissues, and organs via FOXO1 activation and other mechanisms.

This technology includes ten engineered human induced pluripotent stem cell (iPSC) lines with reported genes inserted into safe harbor sites for use in therapy and diagnostic screening assay development as well as basic stem cell biology research. These cell lines have the potential to differentiate into all cells in the body, and theoretically can proliferate/self-renew indefinitely.