Abstract:
A method for cancer cell detection including the steps of (a) staining an analyzed sample with at least first and second dyes, the dyes being selected such that the first dye better adheres to normal cells whereas the second dye better adheres to cancer cells; (b) spectrally imaging the sample through an optical device being optically connected to an imaging spectrometer thereby obtaining a spectrum of each pixel of the sample; (c) based on the spectra, evaluating concentrations of the first and second dyes for each of the pixels; and (d) based on the concentrations detecting the presence of cancer cells in the sample.
Abstract:
A method for finding L internal reference vectors for classification of L chromosomes or portions of chromosomes of a cell, the L chromosomes or portions of chromosomes being painted with K different fluorophores or combinations thereof, wherein K basic chromosomes or portions of chromosomes of the L chromosomes or portions of chromosomes are each painted with only one of the K different fluorophores, whereas the other L-K of the L chromosomes or portions of chromosomes are each painted with a different combination of the K different fluorophores, the method comprising the steps of (a) using a multi-band collection device for measuring a first vector for each pixel of each of the L chromosomes or portions of chromosomes; (b) identifying pixels belonging to each of the K basic chromosomes or portions of chromosomes and defining the pixels as basic pixels, so as to obtain K basic classes of basic pixels; (c) using at least one basic pixel from each of the K basic classes for obtaining K basic vectors, the K basic vectors being K internal reference vectors; (d) using the K basic vectors for identifying pixels belonging to the other L-K chromosomes or portions of chromosomes; and (e) using the pixels belonging to the other L-K chromosomes or portions of chromosomes for calculating the other L-K internal reference vectors, thereby finding all of the L internal reference vectors. A method for classification of L chromosomes or portions of chromosomes of a cell similarly painted using the above method for finding L internal reference vectors, and using the L reference vectors for classification of each of the pixels into one of L classification classes. And, images presenting color chromosomes.
Abstract:
The present invention relates to a method of detecting and monitoring genomic instability in a cell using three-dimensional analysis to assess telomeric and/or chromosomal organization. In addition, the invention relates to a method and system for characterizing the 3D organization of telomeres and/or chromosomes. The system includes an input module for inputting image data of the 3D organization of telomeres and/or chromosomes and a characteristic module for finding a parameter of the 3D organization. The invention also relates to the use of the three-dimensional analysis to detect, diagnose or monitor disease, particularly proliferative diseases such as cancer.
Abstract:
The present application relates to a method of detecting and monitoring cancer or precancer in a cell using three-dimensional analysis to assess centromere organization. In addition, the application relates to a method and system for characterizing the 3D organization of centromeres.
Abstract:
The present invention relates to a method of detecting and monitoring genomic instability in a cell using three-dimensional analysis to assess telomeric and/or chromosomal organization. In addition, the invention relates to a method and system for characterizing the 3D organization of telomeres and/or chromosomes. The system includes an input module for inputting image data of the 3D organization of telomeres and/or chromosomes and a characteristic module for finding a parameter of the 3D organization. The invention also relates to the use of the three-dimensional analysis to detect, diagnose or monitor disease, particularly proliferative diseases such as cancer.
Abstract:
A light reflecting article is disclosed. The light reflecting article comprises a sample carrying article layered with a light reflecting layer. The light reflecting layer serves for allowing an optical collection and detection system to collect both luminescent light emitted from a sample positioned on the light reflecting article in a direction of the optical collection and detection system, as well as luminescent light emitted from the sample in a direction away from the optical collection and detection system and reflected in the direction of the optical collection and detection system via the light reflecting layer, thereby increasing a sensitivity of luminescent light detection.
Abstract:
A fluorescent in situ hybridization method comprising the steps of (a) providing a cell nuclei having chromosomes hybridized with at least one nucleic acid probe including at least one nucleic acid molecule labeled with at least one fluorophore; (b) viewing the cell nuclei through a fluorescence microscope optically connected to an imaging spectrometer for obtaining a spectrum of each pixel of the cell nuclei by (i) collecting incident collimated light simultaneously from all pixels of the cell nuclei; (ii) passing the incident collimated light through an interferometer system so that the light is first split into two coherent beams and then recombine to interfere and form an exiting light beam; (iii) focusing the exiting light beam on a detector having an array of detector elements, so that at each instant each of the elements is the image of one and always the same pixel for the entire duration of the measurement and so that each of the elements produces a signal which is a particular linear combination of light intensity emitted by the pixel at different wavelengths; (iv) rotating or translating one or more of the elements of the interferometer, so that the optical path difference is scanned simultaneously for all the pixels of the cell nuclei; and (v) recording signals of each of the detector elements as function of time using a recording device to form a first spectral cube of data; and (c) interpreting the first spectral cube of data using a mathematical algorithm.
Abstract:
A spectral imaging method for simultaneous detection of multiple fluorophores aimed at detecting and analyzing fluorescent in situ hybridizations employing numerous chromosome paints and/or loci specific probes each labeled with a different fluorophore or a combination of fluorophores for color karyotyping, and at multicolor chromosome banding, wherein each chromosome acquires a specifying banding pattern, which pattern is established using groups of chromosome fragments labeled with various fluorophore or combinations of fluorophores.