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Cell cycle parameters in Aedes albopictus mosquito cells

A Gerenday¹, A M Fallon

¹Department of Entomology, University of Minnesota, St. Paul 55108, USA.

In Vitro Cellular & Developmental Biology. Animal

|May 1, 1996

Summary

The Aedes albopictus C7-10 mosquito cell line exhibits a 10-12 hour generation time. Cell cycle progression, including DNA synthesis and mitosis, is regulated, with G1 phase duration influencing population doubling time.

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Recovery of cDNAs encoding ribosomal proteins S9 and L26 from Aedes albopictus mosquito cells and identification of their homologs in the malaria vector, Anopheles gambiae.

Archives of insect biochemistry and physiology·2005

Area of Science:

Cell Biology
Entomology
Genetics

Background:

The Aedes albopictus C7-10 cell line is a valuable model for genetic and molecular studies.
Understanding cell cycle dynamics is crucial for insect cell line development and application.

Purpose of the Study:

To characterize the cell cycle parameters of the Aedes albopictus C7-10 mosquito cell line.
To investigate the influence of cell density and hormonal regulation on cell cycle progression.

Main Methods:

Analysis of cell cycle phases (G1, S, G2, M) in logarithmically growing and confluent C7-10 cells.
Treatment with 20-hydroxyecdysone to assess hormonal effects on cell cycle.

Main Results:

Rapidly cycling C7-10 cells have a generation time of 10-12 hours, with mitosis (M) <1 hour and DNA synthesis (S) at 6 hours.

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The G1 and G2 phases were approximately 2 hours each, differing from Drosophila melanogaster Kc cells.

Prolongation of G1 phase, not S or G2, accounted for increased doubling times as cells approached confluency.

20-hydroxyecdysone induced a reversible cell cycle arrest after completion of the current cycle.

Conclusions:

The C7-10 cell line possesses distinct cell cycle kinetics, with G1 phase length being a key regulator of proliferation.
Cell cycle progression is sensitive to cell density and hormonal cues, offering potential for controlled manipulation.