Abstract: An auto-focusing method and device are presented for determining an in-focus position of a sample supported on a substrate plate made of a material transparent with respect to incident electromagnetic radiation. The method utilizes an optical system capable of directing incident electromagnetic radiation towards the sample and collecting reflections of the incident electromagnetic radiation that are to be detected. A focal plane of an objective lens arrangement is located at a predetermined distance from a surface of the substrate, which is opposite to the sample-supporting surface of the substrate. A continuous displacement of the focal plane relative to the substrate along the optical axis of the objective lens arrangement is provided, while concurrently directing the incident radiation towards the sample through the objective lens arrangement to thereby focus the incident radiation to a location at the focal plane of the objective lens arrangement.

Abstract: A method of isolating polynucleotides encoding polypeptides affecting an organization of a subcellular organelle or structure of interest is provided. The method comprises: (a) expressing within a plurality of cells an expression library including a plurality of expression constructs each encoding a polypeptide of interest; (b) highlighting the subcellular organelle or structure of interest of the plurality of cells; and (c) isolating a cell or cells of the plurality of cells in which a cellular distribution and/or level of the subcellular organelle or structure of interest is altered to thereby isolate polypeptides capable of affecting the organization of the subcellular organelle or structure of interest.

Abstract: Methods for the treatment of glaucoma are provided by the present invention. The compounds described cause a perturbation of the actin cytoskeleton in the trabecular meshwork or the modulation of its interactions with the underlying membrane. Perturbation of the cytoskeleton and the associated adhesions reduces the resistance of the trabecular meshwork to fluid flow and thereby reduces intraocular pressure.

Abstract: Methods and therapeutic compositions for the treatment of cancer are disclosed. Specifically, peptides including &bgr;-catenin binding domains and polynucleotide sequences encoding same, such as cadherins and o-catenins and polynucleotide sequences encoding same, effective in methods and compositions for treating cancers associated with abnormally high levels of &bgr;-catenin, such as colon cancers and melanomas.

Abstract: Methods for the treatment of glaucoma are provided by the present invention. The compounds described cause a perturbation of the actin cytoskeleton in the trabecular meshwork or the modulation of its interactions with the underlying membrane. Perturbation of the cytoskeleton and the associated adhesions reduces the resistance of the trabecular meshwork to fluid flow and thereby reduces intraocular pressure.

Abstract: Methods for the treatment of glaucoma are described. The compounds described cause a perturbation of cell adhesions in the trabecular meshwork, mainly via disruption of the associated cytoskeletal structures or the modulation of their interactions with the underlying membrane. Perturbation of these adhesions reduces the resistance of the trabecular meshwork to fluid flow and thereby reduces intraocular pressure.

Abstract: Methods for the treatment of glaucoma are described. The compounds described cause a perturbation of cell adhesions in the trabecular meshwork, mainly via disruption of the associated cytoskeletal structures or the modulation of their interactions with the underlying membrane. Perturbation of these adhesions reduces the resistance of the trabecular meshwork to fluid flow and thereby reduces intraocular pressure.