Review
Cell Biology
Jirong Lv, Xue Xiao, Mingxia Bi, Tingting Tang, Deao Kong, Meining Diao, Qian Jiao, Xi Chen, Chunling Yan, Xixun Du, Hong Jiang
Summary: ATP-sensitive potassium channels (KATP channels) play a crucial role in linking the electrical activity of the cell membrane with cell metabolism. They have been found to be expressed in various cells and play important roles in neurodegenerative diseases. The KATP channel openers and inhibitors have protective effects on neurons by regulating neuronal excitability and neurotransmitter release, reducing abnormal protein aggregation and Ca2+ overload, and decreasing reactive oxygen species (ROS) production and microglia activation. However, KATP channels also exhibit dual effects in some cases.
AGEING RESEARCH REVIEWS
(2022)
Article
Chemistry, Multidisciplinary
Ruo-bing Guo, Yin-feng Dong, Zhi Yin, Zhen-yu Cai, Jin Yang, Juan Ji, Yu-qin Sun, Xin-xin Huang, Teng-fei Xue, Hong Cheng, Xi-qiao Zhou, Xiu-lan Sun
Summary: The study demonstrates that iptakalim can significantly promote recovery of cerebral blood flow after cerebral ischemia and reperfusion, inhibit pericytes contraction, improve cerebral microcirculation, and reduce the number of obstructed capillaries. Furthermore, iptakalim treatment promotes K-ATP channel opening, leading to decreased calcium influx and ET-1 release.
ACTA PHARMACOLOGICA SINICA
(2022)
Article
Biochemistry & Molecular Biology
Sergey V. V. Popov, Alexandr V. V. Mukhomedzyanov, Leonid N. N. Maslov, Natalia V. V. Naryzhnaya, Boris K. K. Kurbatov, N. Rajendra Prasad, Nirmal Singh, Feng Fu, Viacheslav N. N. Azev
Summary: The search for new drugs for the treatment of acute myocardial infarction and reperfusion injury is urgent. Opioid peptides, such as deltorphin II, have been found to have a cardioprotective effect in reperfusion, and this study aimed to investigate the molecular mechanisms involved. The results showed that the cardioprotective effect of deltorphin II in reperfusion is mediated through the activation of the peripheral delta(2) opioid receptor, most likely located in cardiomyocytes.
Article
Biochemistry & Molecular Biology
Wei Guo, Zi-Yang Tang, Zhen-Yu Cai, Wen-E Zhao, Jin Yang, Xi-Peng Wang, Juan Ji, Xin-Xin Huang, Xiu-Lan Sun
Summary: The study demonstrated that Ipt can reverse depressive-like behaviors in vivo and in vitro by modulating mitochondrial dynamics and function, improving synaptic plasticity, and alleviating symptoms in depression models. These findings provide a new candidate compound and target for antidepressive therapy.
Review
Biochemistry & Molecular Biology
Natalia V. Naryzhnaya, Alexander V. Mukhomedzyanov, Maria Sirotina, Leonid N. Maslov, Boris K. Kurbatov, Alexander S. Gorbunov, Mikhail Kilin, Artur Kan, Andrey V. Krylatov, Yuri K. Podoksenov, Sergey V. Logvinov
Summary: Analysis of data and studies shows that activation of peripheral & delta;(2)-opioid receptor (& delta;(2)-OR) can increase cardiac tolerance to reperfusion, and this receptor is found in cardiomyocytes. Endogenous opioids do not regulate cardiac resistance to reperfusion. The infarct-limiting effect of & delta;(2)-OR agonist deltorphin II depends on activation of several protein kinases, including PKC & delta;, ERK1/2, PI3K, and PKG. Hypothetical end-effectors of the cardioprotective effect of deltorphin II are sarcolemmal K-ATP channels and the MPT pore.
Article
Multidisciplinary Sciences
Francisco Perez-Vizcaino, Angel Cogolludo, Gema Mondejar-Parreno
Summary: The dysregulation of cationic channels, especially K+ channels, is a hallmark of pulmonary arterial hypertension (PAH). These channel changes are similar across different types of PAH and may play a key role in the pathophysiology of the disease. Further investigation is needed to determine the significance of changes in Na+ and TRP channels.
SCIENTIFIC REPORTS
(2021)
Article
Neurosciences
Soma S. Singareddy, Helen Roessler, Conor McClenaghan, Jennifer M. Ikle, Robert C. Tryon, Gijs Haaften, Colin G. Nichols
Summary: ATP-sensitive potassium channels play a crucial role in cellular metabolism and excitability in the heart and vasculature. Zebrafish models offer insights into the link between molecular dysfunction and complex pathophysiology.
JOURNAL OF PHYSIOLOGY-LONDON
(2022)
Article
Neurosciences
Paulo S. Strazza, Daniela V. F. de Siqueira, Ricardo M. Leao
Summary: Cartwheel neurons in the dorsal cochlear nucleus are glycinergic interneurons that provide inhibition to fusiform neurons. Most of these neurons exhibit spontaneous firing, while a small fraction are quiet neurons. The quiet neurons have an outward conductance sensitive to tolbutamide, while active neurons can be affected by the K-ATP agonist diazoxide. The role of K-ATP channels in controlling the spontaneous firing of these neurons is revealed.
JOURNAL OF PHYSIOLOGY-LONDON
(2021)
Article
Cardiac & Cardiovascular Systems
Mark J. Specterman, Qadeer Aziz, Yiwen Li, Naomi A. Anderson, Leona Ojake, Keat-Eng Ng, Alison M. Thomas, Malcolm C. Finlay, Richard J. Schilling, Pier D. Lambiase, Andrew Tinker
Summary: This study investigated the effects of hypoxia on atrial electrophysiology in mice with global deletion of the K-ATP pore-forming subunits. The results showed that K-ATP blockade or absence resulted in atrial electrophysiological modifications at the cellular and tissue level. Furthermore, the global knockout of Kir6.2 prevented hypoxia-induced atrial path length shortening and arrhythmogenicity, suggesting a potential translational approach for treating ischemically driven atrial arrhythmia.
CIRCULATION-ARRHYTHMIA AND ELECTROPHYSIOLOGY
(2023)
Article
Biology
Zdravka Daneva, Matteo Ottolini, Yen Lin Chen, Eliska Klimentova, Maniselvan Kuppusamy, Soham A. Shah, Richard D. Minshall, Cheikh Seye, Victor E. Laubach, Brant E. Isakson, Swapnil K. Sonkusare
Summary: The study showed that endothelial Panx1 signaling pathway contributes to vasodilation and reduces pulmonary arterial pressure through ATP-TRPV4 channel signaling. By regulating ATP efflux and TRPV4 channel activity, Panx1 could potentially be targeted for the treatment of pulmonary arterial hypertension and related diseases.
Article
Biochemistry & Molecular Biology
Iskra Cruz-Cruz, German Bernate-Obando, Carlos Larque, Rene Escalona, Rodolfo Pinto-Almazan, Myrian Velasco
Summary: Metabolic syndrome (MS) is a cluster of metabolic signs that increases the risk of developing type 2 diabetes and cardiovascular diseases. In the early stage of MS, a high-sugar diet can affect the pharmacological properties of K-ATP channels involved in insulin secretion.
Article
Pharmacology & Pharmacy
Abidullahl, Shujaat Ahmadi, Niaz Ali, Feras Almarshad, Muhammad Nabi, Shafiq Ur Rahman, Shakir Ullah, Jahangir Khan, Haya Hussain, Syeda Hajira Bukhari
Summary: The study found that Moxifloxacin and Gemifloxacin exert their relaxant effects on isolated rabbits' jejunal preparations possibly through activation of ATP-sensitive potassium channels (K-ATP). They relaxed low potassium-induced contractions and had EC50 values of 2.83 and 1.11 µg/mL for spontaneous contractions.
PAKISTAN JOURNAL OF PHARMACEUTICAL SCIENCES
(2021)
Review
Cell Biology
Yingqiu Cui, Maik Gollasch, Mario Kassmann
Summary: The arterial myogenic response is a critical mechanism in maintaining constant blood flow and protecting delicate organs. The activation of mechanosensors, such as angiotensin II type 1 receptors (AT1R), plays a crucial role in this process. Aging affects the development of myogenic response. This review summarizes recent progress in understanding the role of AT1R and other mechanosensors in arterial myogenic response, along with the implications for healthy aging.
AGEING RESEARCH REVIEWS
(2023)
Article
Medicine, General & Internal
Meng-Ting Wang, Hsueh-Yi Pan, Ya-Ling Huang, Li-Wei Wu, Pin-Chun Wang, Yu-Juei Hsu, Tzu-Chieh Lin, Chenwei Lin, Jyun-Heng Lai, Chien-Hsing Lee
Summary: In patients with type 2 diabetes receiving metformin, the use of high-affinity sulfonylureas for blocking mitoKATP channels is associated with an increased risk of major adverse cardiovascular events, myocardial infarction, all-cause mortality, and severe hypoglycemia compared to low-affinity sulfonylureas.
Review
Pharmacology & Pharmacy
Zhicheng Wang, Weikang Bian, Yufeng Yan, Dai-Min Zhang
Summary: ATP-sensitive potassium channels (K-ATP channels) play important roles in cellular excitability and metabolism. Activation of K-ATP channels can repolarize the membrane potential and reduce the occurrence of arrhythmias. Under severe and prolonged anoxia, K-ATP channels open to decrease cellular excitability and prevent action potential generation. Small active molecules can enhance the opening of K-ATP channels, leading to membrane repolarization and decreased malignant arrhythmias. Mutations in K-ATP channels worsen the regulatory roles in mutation-related diseases. However, efficient treatments for patients with K-ATP channel mutations are still lacking.
FRONTIERS IN PHARMACOLOGY
(2022)