Tangeretin Reduces Ultraviolet B (UVB)-Induced Cyclooxygenase-2 Expression in Mouse Epidermal Cells by Blocking Mitogen-Activated Protein Kinase (MAPK) Activation and Reactive Oxygen Species (ROS) Generation

2011 ◽  
Vol 59 (1) ◽  
pp. 222-228 ◽  
Author(s):  
Ji Hye Yoon ◽  
Tae-Gyu Lim ◽  
Kyung Mi Lee ◽  
Ae Ji Jeon ◽  
Su Yeon Kim ◽  
...  
Keyword(s):  
Reactive Oxygen Species ◽  
Protein Kinase ◽  
Reactive Oxygen ◽  
Epidermal Cells ◽  
Ultraviolet B ◽  
Mitogen Activated Protein Kinase ◽  
Ros Generation ◽  
Oxygen Species ◽  
Mapk Activation ◽  
Mitogen Activated Protein

scholarly journals Role of Reactive Oxygen Species in Cancer Progression: Molecular Mechanisms and Recent Advancements

Biomolecules ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 735 ◽  
Author(s):  
Vaishali Aggarwal ◽  
Hardeep Tuli ◽  
Ayşegül Varol ◽  
Falak Thakral ◽  
Mukerrem Yerer ◽  
...  
Keyword(s):  
Reactive Oxygen Species ◽  
Protein Kinase ◽  
Cancer Cell ◽  
Cancer Progression ◽  
Molecular Mechanisms ◽  
Reactive Oxygen ◽  
Mitogen Activated Protein Kinase ◽  
Oxygen Species ◽  
Mitogen Activated Protein ◽  
High Concentrations

Reactive oxygen species (ROS) play a pivotal role in biological processes and continuous ROS production in normal cells is controlled by the appropriate regulation between the silver lining of low and high ROS concentration mediated effects. Interestingly, ROS also dynamically influences the tumor microenvironment and is known to initiate cancer angiogenesis, metastasis, and survival at different concentrations. At moderate concentration, ROS activates the cancer cell survival signaling cascade involving mitogen-activated protein kinase/extracellular signal-regulated protein kinases 1/2 (MAPK/ERK1/2), p38, c-Jun N-terminal kinase (JNK), and phosphoinositide-3-kinase/ protein kinase B (PI3K/Akt), which in turn activate the nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB), matrix metalloproteinases (MMPs), and vascular endothelial growth factor (VEGF). At high concentrations, ROS can cause cancer cell apoptosis. Hence, it critically depends upon the ROS levels, to either augment tumorigenesis or lead to apoptosis. The major issue is targeting the dual actions of ROS effectively with respect to the concentration bias, which needs to be monitored carefully to impede tumor angiogenesis and metastasis for ROS to serve as potential therapeutic targets exogenously/endogenously. Overall, additional research is required to comprehend the potential of ROS as an effective anti-tumor modality and therapeutic target for treating malignancies.

scholarly journals A Mitogen-activated Protein Kinase Kinase Kinase Mediates Reactive Oxygen Species Homeostasis inArabidopsis

2006 ◽  
Vol 281 (50) ◽  
pp. 38697-38704 ◽  
Author(s):  
Hirofumi Nakagami ◽  
Hanka Soukupová ◽  
Adam Schikora ◽  
Viktor Zárský ◽  
Heribert Hirt
Keyword(s):  
Reactive Oxygen Species ◽  
Protein Kinase ◽  
Reactive Oxygen ◽  
Mitogen Activated Protein Kinase ◽  
Oxygen Species ◽  
Mitogen Activated Protein ◽  
Protein Kinase Kinase
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