Multicolour spectral karyotyping of mouse chromosomes (CAT#: STEM-ST-0371-WXH)

Introduction

Murine models of human carcinogenesis are exceedingly valuable tools to understand genetic mechanisms of neoplastic growth. The identification of recurrent chromosomal rearrangements by cytogenetic techniques serves as an initial screening test for tumour specific aberrations. In murine models of human carcinogenesis, however, karyotype analysis is technically demanding because mouse chromosomes are acrocentric and of similar size.

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Principle Applications Procedure Materials Notes Related Products

Principle

It is based on the hybridization of collections of chromosome-specific FISH probes labeled with different fluorochromes or fluorochrome combinations, allowing the discrimination of each of the 24 different human chromosomes.

Applications

Detection of subtle chromosomal aberrations, including marker chromosomes, small translocations, complex rearrangements and minute structural abnormalities.

Procedure

1. Metaphase preparation
2. Slide pretreatment
3. Slide and probe denaturation
4. Hybridization
5. Detection
6. Image acquisition and image analysis

Materials

Fluorescent dyes, spectrum orange, Texas red, Cy5, spectrum green, Cy5

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