Prophasing interphase chromatin for assessing genetic damages-The evolution, applications and the future prospects

Area of Science:

• Cytogenetics
• Molecular Biology
• Radiation Biology

Background:

• Premature chromosome condensation (PCC) induces chromosome-like morphology in interphase chromatin.
• The technique evolved from somatic cell hybridization (SCH) to chemical induction methods.
• PCC is crucial for analyzing damaged cells, especially those with limited sample size or reduced division capacity.

Purpose of the Study:

• To review the evolution and applications of the PCC technique.
• To discuss current limitations in PCC induction methods.
• To suggest refinements for optimizing PCC's potential in DNA damage assessment.

Main Methods:

• Chronological review of PCC technique development.
• Analysis of PCC applications, particularly in biodosimetry.
• Discussion of limitations associated with SCH and chemical induction.

Main Results:

• PCC has evolved significantly since the late 1960s, increasing efficiency in detecting primary DNA damage.
• Biodosimetry is a key application, with collaborative exercises utilizing the PCC technique.
• Current induction methods (SCH and chemical) have inherent limitations hindering full potential.

Conclusions:

• PCC is a valuable tool for cytogenetic assessment of DNA damage.
• Combining SCH and chemical induction methods may enhance PCC's efficiency.
• Further refinement is needed to maximize PCC's utility in primary DNA damage detection.