Differential bradykinin B1 and B2 receptor regulation in cell death induced by hepatic ischaemia/reperfusion injury

2014 ◽  
Vol 127 (6) ◽  
pp. 405-413 ◽  
Author(s):  
Mayra A. Paio ◽  
Maria Kouyoumdjian ◽  
Durval R. Borges ◽  
Marcia R. Nagaoka

In the present study, we have demonstrated that the kinin B1 receptor may participate in apoptotic cell death signalling, whereas the B2 receptor may be involved in necrotic cell death during IRI.

2006 ◽  
Vol 40 (6) ◽  
pp. 846-852 ◽  
Author(s):  
Lauren Valentim ◽  
Kevin M. Laurence ◽  
Paul A. Townsend ◽  
Christopher J. Carroll ◽  
Surinder Soond ◽  
...  

2007 ◽  
Vol 35 (5) ◽  
pp. 1052-1054 ◽  
Author(s):  
G.R. Budas ◽  
D. Mochly-Rosen

Mitochondria mediate diverse cellular functions including energy generation and ROS (reactive oxygen species) production and contribute to signal transduction. Mitochondria are also key regulators of cell viability and play a central role in necrotic and apoptotic cell death pathways induced by cardiac ischaemia/reperfusion injury. PKC (protein kinase C) ϵ plays a critical role in cardioprotective signalling pathways that protect the heart from ischaemia/reperfusion. Emerging evidence suggests that the cardioprotective target of PKCϵ resides at the mitochondria. Proposed mitochondrial targets of PKCϵ include mitoKATP (mitochondrial ATP-sensitive K+ channel), components of the MPTP (mitochondrial permeability transition pore) and components of the electron transport chain. This review highlights mitochondrial targets of PKCϵ and their possible role in cardioprotective signalling in the setting of ischaemia/reperfusion injury.


2016 ◽  
Vol 130 (18) ◽  
pp. 1641-1653 ◽  
Author(s):  
Yuanna Ling ◽  
Guiming Chen ◽  
Yi Deng ◽  
Huixiong Tang ◽  
Long Ling ◽  
...  

The present paper provides evidence that polydatin (PD) post-treatment alleviates myocardial ischaemia/reperfusion (I/R) injury by promoting autophagic flux to clear damaged mitochondria to reduce reactive oxygen species (ROS) and cell death.


2001 ◽  
Vol 21 (11) ◽  
pp. 1281-1294 ◽  
Author(s):  
Jennifer K. Newcomb-Fernandez ◽  
Xiurong Zhao ◽  
Brian R. Pike ◽  
Kevin K. W. Wang ◽  
Andreas Kampfl ◽  
...  

The contributions of calpain and caspase-3 to apoptosis and necrosis after central nervous system (CNS) trauma are relatively unexplored. No study has examined concurrent activation of calpain and caspase-3 in necrotic or apoptotic cell death after any CNS insult. Experiments used a model of oxygen–glucose deprivation (OGD) in primary septo-hippocampal cultures and assessed cell viability, occurrence of apoptotic and necrotic cell death phenotypes, and protease activation. Immunoblots using an antibody detecting calpain and caspase-3 proteolysis of α-spectrin showed greater accumulation of calpain-mediated breakdown products (BDPs) compared with caspase-3–mediated BDPs. Administration of calpain and caspase-3 inhibitors confirmed that activation of these proteases contributed to cell death, as inferred by lactate dehydrogenase release. Oxygen–glucose deprivation resulted in expression of apoptotic and necrotic cell death phenotypes, especially in neurons. Immunocytochemical studies of calpain and caspase-3 activation in apoptotic cells indicated that these proteases are almost always concurrently activated during apoptosis. These data demonstrate that calpain and caspase-3 activation is associated with expression of apoptotic cell death phenotypes after OGD, and that calpain activation, in combination with caspase-3 activation, could contribute to the expression of apoptotic cell death by assisting in the degradation of important cellular proteins.


2003 ◽  
Vol 67 (3) ◽  
pp. 248-252 ◽  
Author(s):  
Yoshihisa Naka ◽  
Yoshiki Sawa ◽  
Motonobu Nishimura ◽  
Nobuaki Hirata ◽  
Hideki Ueda ◽  
...  

Metallomics ◽  
2019 ◽  
Vol 11 (8) ◽  
pp. 1330-1343 ◽  
Author(s):  
Joseph Ischia ◽  
Damien M. Bolton ◽  
Oneel Patel

Ischaemia (interruption in the blood/oxygen supply) and subsequent damage induced by reperfusion (restoration of blood/oxygen supply) ultimately leads to cell death, tissue injury and permanent organ dysfunction.


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