Genomic aberration detection by fluorescence in situ hybridization

Area of Science:

• Molecular Biology
• Genetics
• Pathology

Background:

• Fluorescence in situ hybridization (FISH) is a key molecular cytogenetic technique.
• It detects genomic alterations in various diseases, especially neoplastic disorders.
• FISH is utilized with routine surgical and cytological specimens.

Purpose of the Study:

• To provide an overview of FISH data analysis principles.
• To address technical considerations and implementation challenges in FISH.
• To discuss diagnostic criteria, quality control, and interpretation in surgical pathology.

Main Methods:

• Utilizes fluorescent-labeled nucleic acid or nucleotide analog probes.
• Targets specific DNA sequences on chromosomes for detection.
• Employs routine surgical and cytological specimens.

Main Results:

• FISH facilitates accurate diagnosis, tumor classification, and biomarker identification.
• It aids in selecting targeted therapies and monitoring treatment efficacy.
• The technique is cost-effective for diagnostic and therapeutic decisions.

Conclusions:

• FISH is a valuable tool in daily surgical pathology practice.
• Understanding its principles, challenges, and clinical context is essential for optimal use.
• The demand for FISH is expected to increase with technological advancements.