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A distinct role for interleukin-6 as a major mediator of cellular adjustment to an altered culture condition

 Hwa-Kyung Son ; Iha Park ; Jin Kim ; Darren R. Williams ; Da-Woon Jung ; Eun-Sang Oh ; Doo Young Lee ; Jung Yoon Bae ; Rasika P. Illeperuma ; Do Kyeong Kim ; Jue Young Kim 
 Journal of Cellular Biochemistry, Vol.116(11) : 2552~2562, 2015 
Journal Title
 Journal of Cellular Biochemistry 
Issue Date
Tissue microenvironment adjusts biological properties of different cells by modulating signaling pathways and cell to cell interactions. This study showed that epithelial-mesenchymal transition (EMT)/ mesenchymal-epithelial transition (MET) can be modulated by altering culture conditions. HPV E6/E7-transfected immortalized oral keratinocytes (IHOK) cultured in different media displayed reversible EMT/MET accompanied by changes in cell phenotype, proliferation, gene expression at transcriptional, and translational level, and migratory and invasive activities. Cholera toxin, a major supplement to culture medium, was responsible for inducing the morphological and biological changes of IHOK. Cholera toxin per se induced EMT by triggering the secretion of interleukin 6 (IL-6) from IHOK. We found IL-6 to be a central molecule that modulates the reversibility of EMT based not only on the mRNA level but also on the level of secretion. Taken together, our results demonstrate that IL-6, a cytokine whose transcription is activated by alterations in culture conditions, is a key molecule for regulating reversible EMT/MET. This study will contribute to understand one way of cellular adjustment for surviving in unfamiliar conditions.
Appears in Collections:
1. 연구논문 > 2. College of Dentistry > Dept. of Oral Pathology
1. 연구논문 > 5. Research Institutes > Oral Cancer Research Institute
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