Using the double thymidine block technique, Ehrlich ascites tumor cells (ELD) carried i n continuous spinner culture have been synchronized. Simultaneous monitoring of :tH-thymidine incorporation, cell number and mitotic index yielded a cell cycle time of approximately 13.5 hours. This is composed o
Increases in mRNA levels of glucose transporters types 1 and 3 in Ehrlich ascites tumor cells during tumor development
β Scribed by K.K. Au; E. Liong; J.Y. Li; P.S. Li; C.C. Liew; T.T. Kwok; Y.M. Choy; C.Y. Lee; K.P. Fung
- Publisher
- John Wiley and Sons
- Year
- 1997
- Tongue
- English
- Weight
- 129 KB
- Volume
- 67
- Category
- Article
- ISSN
- 0730-2312
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β¦ Synopsis
A common feature of many tumors is an increase in glucose catabolism during tumor growth. We studied the mechanism of this phenomenon by using Ehrlich ascites tumor bearing mice as the animal model. We found that Ehrlich ascites tumor cells possess only glucose transporter 1 (GLUT1) and GLUT3 but not GLUT2, GLUT4, or GLUT5. The mRNA levels of GLUT1 and GLUT3 increased progressively in the tumour during development; however, there were no changes observable in mRNA levels of glucose transporters of all types in brain, liver, and heart of the host mice. These findings suggest that Ehrlich ascites tumor augments its glucose transport mechanism relative to other tissues in response to its unique growth needs.
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