scholarly journals Sphingosine-1-Phosphate Protects Intestinal Epithelial Cells from Apoptosis Through the Akt Signaling Pathway

2008 ◽  
Vol 54 (3) ◽  
pp. 499-510 ◽  
Author(s):  
Jose Greenspon ◽  
Ruiyun Li ◽  
Lan Xiao ◽  
Jaladanki N. Rao ◽  
Bernard S. Marasa ◽  
...  
Marine Drugs ◽  
2019 ◽  
Vol 17 (4) ◽  
pp. 205
Author(s):  
Su-Jin Jeong ◽  
Jeong-Wook Choi ◽  
Min-Kyeong Lee ◽  
Youn-Hee Choi ◽  
Taek-Jeong Nam

Spirulina is a type of filamentous blue-green microalgae known to be rich in nutrients and to have pharmacological effects, but the effect of spirulina on the small intestine epithelium is not well understood. Therefore, this study aims to investigate the proliferative effects of spirulina crude protein (SPCP) on a rat intestinal epithelial cells IEC-6 to elucidate the mechanisms underlying its effect. First, the results of wound-healing and cell viability assays demonstrated that SPCP promoted migration and proliferation in a dose-dependent manner. Subsequently, when the mechanisms of migration and proliferation promotion by SPCP were confirmed, we found that the epidermal growth factor receptor (EGFR) and mitogen-activated protein (MAPK) signaling pathways were activated by phosphorylation. Cell cycle progression from G0/G1 to S phase was also promoted by SPCP through upregulation of the expression levels of cyclins and cyclin-dependent kinases (Cdks), which regulate cell cycle progression to the S phase. Meanwhile, the expression of cyclin-dependent kinase inhibitors (CKIs), such as p21 and p27, decreased with SPCP. In conclusion, our results indicate that activation of EGFR and its downstream signaling pathway by SPCP treatment regulates cell cycle progression. Therefore, these results contribute to the research on the molecular mechanism for SPCP promoting the migration and proliferation of rat intestinal epithelial cells.


2008 ◽  
Vol 134 (4) ◽  
pp. A-407
Author(s):  
Ruiyun Li ◽  
Jose Greenspon ◽  
Emily Bellavance ◽  
Rex Sun ◽  
Lan Xiao ◽  
...  

2015 ◽  
Vol 148 (4) ◽  
pp. S-880 ◽  
Author(s):  
Shubha Priyamvada ◽  
Arivarasu Natarajan Anbazhagan ◽  
Anoop Kumar ◽  
Tarunmeet Gujral ◽  
Alip Borthakur ◽  
...  

2012 ◽  
Vol 98 (3) ◽  
pp. S239
Author(s):  
T. Nakahara ◽  
A. Iwase ◽  
M. Kondo ◽  
T. Nakamura ◽  
M. Goto ◽  
...  

2015 ◽  
Vol 27 (1) ◽  
pp. 156-163 ◽  
Author(s):  
Yongchun Zhang ◽  
Ying Wang ◽  
Fang Zhang ◽  
Kaiming Wang ◽  
Guangpu Liu ◽  
...  

2009 ◽  
Vol 136 (5) ◽  
pp. A-395
Author(s):  
Junko Akiyama ◽  
Ryuichi Okamoto ◽  
Kiichiro Tsuchiya ◽  
Tetsuya Nakamura ◽  
Mamoru Watanabe

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