Cell cycle analysis and synchronization of the TN-368 insect cell line

Area of Science:

• Cell Biology
• Insect Cell Line Research
• Molecular Biology

Background:

• Understanding insect cell cycle dynamics is crucial for various biotechnological applications.
• The Trichoplusia ni (TN-368) cell line is a valuable model for insect molecular biology studies.
• Accurate cell cycle parameter determination is essential for experimental design.

Purpose of the Study:

• To conduct a detailed cell cycle analysis of the Trichoplusia ni (TN-368) insect cell line.
• To determine the precise duration of each phase within the cell cycle.
• To establish a reliable synchronization method for enriching specific cell cycle phases.

Main Methods:

• Cell cycle analysis using autoradiography.
• Determination of percent labeled metaphase data.
• Synchronization of TN-368 cells using a double block method with 50 mM thymidine.

Main Results:

• The cell cycle durations were determined: S phase (4.5 hr), G2 phase (8.5 hr), M phase (0.5 hr), and G1 phase (1.0 hr).
• The total cell cycle time for TN-368 cells was calculated to be 14.5 hours.
• The thymidine synchronization protocol effectively yielded a large number of cells in S and G2 phases.

Conclusions:

• The study provides comprehensive cell cycle parameters for the Trichoplusia ni (TN-368) cell line.
• The developed synchronization method is effective for obtaining synchronized insect cells, particularly in S and G2 phases.
• These findings offer a valuable resource for researchers utilizing this insect cell line in molecular and cell biology.