Instrumentation for Spectral Karyotyping

光谱核型分析仪器

• 批准号: 6112724
• 负责人: Paul D Smith
• 金额: --
• 依托单位: OFFICE OF THE DIRECTOR, NATIONAL INSTITUTES OF HEALTH
• 依托单位国家: 美国
• 资助国家: 美国
• 起止时间: 至
• 项目状态: 未结题
• 来源: https://reporter.nih.gov/project-details/6112724
• 关键词: biomedical equipment development; chromosome aberrations; chromosome deletion; chromosome inversion; chromosome translocation; cytogenetics; interferometry; karyotype; method development

Spectral karyotyping is an evolving cytogenetic technology to identify chromosomal rearrangements such as deletions, inversions, and translocations seen in cancer cell lines. A commercial instrument operates as a modified Sagnac interferometer installed on an epi-illumination microscope to capture the spectral signature of probes used to paint chromosomes. The epi-illumination port and the fluorescent cube assembly of the microscope have been modified to permit single wavelength excitation, resulting in greater than an order of magnitude improvement in the signal to noise ratio of the fluorescent signals and a reduction in the overall background signal. These improvements will permit resolution of smaller chromosome band abnormalities and identification of their correlation with disease.

光谱核型是一种不断进化的细胞遗传学