Cited by 122Neurobiology and Insect Physiology ResearchDevelopmental Biology and Gene RegulationEstrogen and related hormone effects

The morphological response of Kc-H cells to ecdysteroids: Hormonal specificity

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Cherbas, Lucy, Yonge, Christopher D., Cherbas, Peter, Williams, Carroll M.·1980·Wilhelm Roux's Archives of Developmental Biology

Abstract

Cells of the line Kc, derived fromDrosophila melanogaster embryos, extend long processes when exposed to ecdysteroid hormones. We have devised a quantitative assay for this morphological response, using the subline Kc-H. The assay was used to characterize the conditions required for the response. A halfmaximal response is elicited by approximately 10-8 M 20-hydroxyecdysone; the response is saturated by 10-7 M 20-hydroxyecdysone, which causes detectable elongation within a few hours, and a maximal response after 2-3 days. The response occurs substantially normally in the absence of serum, during growth in suspension, and in over-crowded cultures. It is not elicited by cyclic nucleotides, vertebrate growth factors, or a variety of other non-ecdysteroid reagents. Of 60 ecdysteroid compounds tested, only those which were active in other insect test systems elicited the response, and the concentrations required were approximately proportional to the concentrations active in other in vitro systems. We conclude that the response of Kc cells to 20-hydroxyecdysone retains basic features of the ecdysteroid response of intact tissues and therefore that Kc cells are a useful model system for studying ecdysteroid action.

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  • The Drosophila melanogaster Kc cell line assay had advantages of much greater reproducibility and no ecdysteroid metabolism but was still time-consuming.

    “The next major development was to use the response of the Drosophila melanogaster Kc cell line to quantify the potency of ecdysteroid analogues [162], which had the advantages of much greater reproducibility and no ecdysteroid metabolism but was still time-consuming as it required the measurement of neurone-like cellular projections that were part of the response.”

    From Ecdysteroids (2021) · cites this paper as [162]

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2 of the 91 references couldn’t be matched to a known paper.

Research works printed but not linked: 4

  1. Ashburner M, Richards G (1976) The role of ecdysone in the control of gene activity in the polytene chromosomes of Droso- phila. In: Lawrence PA (ed) Insect development. Wiley, New York, pp 203-225
  2. Berger E, Frank M, Abell MC (1980) Ecdysone-induced changes in protein synthesis in embryonic Drosophila cells in culture. In: Kurstak E, Maramorosch K, Dfibendorfer A (eds) Inverte- brate systems in vitro. Elsevier/North Holland, Amsterdam, pp 195 208
  3. Counce S J, Waddington CH (eds), Developmental systems: Insects, vol 2. Academic Press, New York, pp 291497
  4. Wyss C (1980) Cell hybrid analysis of ecdysone sensitivity and resistance in Drosophila cell lines. In : Kurstak E, Maramorosch K, Dfibendorfer (eds) Invertebrate systems in vitro. Elsevier/ North Holland, Amsterdam, in press

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Authors
Cherbas, L., Yonge, C. D., Cherbas, P., & Williams, C. M.
Affiliations
Harvard University (US)
Venue
Wilhelm Roux's Archives of Developmental Biology
Published
1980
Volume
189
Issue
1
Pages
1-15
ISSN
  • 0043-5546 (ISSN-L)
  • 0340-0794
  • 1432-041X
OpenAlex
W2020477872
Cited by
122
References
91
Citations by year
2025: 2 · 2021: 2 · 2018: 1 · 2017: 2 · 2015: 1 · 2013: 1 · 2012: 3
FWCI
2.35
Type
journal article
Language
en
Open access
Locations
  • Development Genes and Evolution (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Science Foundation
  • Harvard University
  • National Institutes of Health
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurobiology and Insect Physiology Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Estrogen and related hormone effects
Keywords
ecdysteroids, 20-hydroxyecdysone, Drosophila melanogaster, cell elongation, quantitative assay, serum independence, suspension culture, crowding, cyclic nucleotides, growth factors

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