Detection of Leptin Activity in Living Cells Expressing Chicken Leptin Receptor and STAT3
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- Adachi Hiromi
- College of Agriculture, Ibaraki University, Japan United Graduate School of Agriculture, Tokyo University of Agriculture and Technology, Japan
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- Murase Daisuke
- College of Agriculture, Ibaraki University, Japan United Graduate School of Agriculture, Tokyo University of Agriculture and Technology, Japan
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- Atomura Susumu
- College of Agriculture, Ibaraki University, Japan
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- Ohkubo Takeshi
- College of Agriculture, Ibaraki University, Japan
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Abstract
The chicken leptin receptor (chLEPR) activates Janus kinase (JAK) - signal transducers and activator of transcription (STAT) signaling pathway after leptin stimulation. We have previously developed a bioassay using leptin inducible reporter gene in cultured cells. However, we failed to detect leptin-like activity in chicken blood. In the present study, we expressed green fluorescent protein (GFP) fused chSTAT3 (GFP-chSTAT3) in cells expressing chLEPR and analyzed leptin dependent activation of the chSTAT3. Leptin phosphorylated GFP-chSTAT3 and by which fluorescent signal translocated into nuclei in COS-7 cells transiently expressing GFP-chSTAT3 with chLEPR. Furthermore, we established CHO-K1 cells stably expressing chLEPR and chSTAT3 (CHO-chLEPR/chSTAT3), and in which detected time- and dose-dependent activation of chSTAT3 by leptin. Therefore, the CHO-chLEPR/STAT3 cells would be an excellent tool to detect and monitor leptin-like activity in avian tissues.
Journal
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- The Journal of Poultry Science
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The Journal of Poultry Science 49 (1), 46-50, 2012
Japan Poultry Science Association
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Keywords
Details 詳細情報について
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- CRID
- 1390001205206251776
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- NII Article ID
- 130004446349
- 10030227342
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- NII Book ID
- AA11564513
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- COI
- 1:CAS:528:DC%2BC38Xjs1yqtbs%3D
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- ISSN
- 13490486
- 13467395
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- NDL BIB ID
- 023396197
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed