Chidambaram Saravana Babu, Anand Nikhilesh, Varma Sudhir Rama, Ramamurthy Srinivasan, Vichitra Chandrasekaran, Sharma Ambika, Mahalakshmi Arehally M, Essa Musthafa Mohamed
Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysuru 570015, Karnataka, India.
Centre for Experimental Pharmacology and Toxicology, Central Animal Facility, JSS Academy of Higher Education & Research, Mysuru 570015, Karnataka, India.
IBRO Neurosci Rep. 2024 Jan 23;16:373-394. doi: 10.1016/j.ibneur.2023.11.007. eCollection 2024 Jun.
Superoxide dismutase (SOD) is a common antioxidant enzyme found majorly in living cells. The main physiological role of SOD is detoxification and maintain the redox balance, acts as a first line of defence against Reactive nitrogen species (RNS), Reactive oxygen species (ROS), and other such potentially hazardous molecules. SOD catalyses the conversion of superoxide anion free radicals (O .) into molecular oxygen (O ) and hydrogen peroxide (H O ) in the cells. Superoxide dismutases (SODs) are expressed in neurons and glial cells throughout the CNS both intracellularly and extracellularly. Endogenous oxidative stress (OS) linked with enlarged production of reactive oxygen metabolites (ROMs), inflammation, deregulation of redox balance, mitochondrial dysfunction and bioenergetic crisis are found to be prerequisite for neuronal loss in neurological diseases. Clinical and genetic studies indicate a direct correlation between mutations in SOD gene and neurodegenerative diseases, like Amyotrophic Lateral Sclerosis (ALS), Huntington's disease (HD), Parkinson's Disease (PD) and Alzheimer's Disease (AD). Therefore, inhibitors of OS are considered as an optimistic approach to prevent neuronal loss. SOD mimetics like Metalloporphyrin Mn (II)-cyclic polyamines, Nitroxides and Mn (III)- Salen complexes are designed and used as therapeutic extensively in the treatment of neurological disorders. SODs and SOD mimetics are promising future therapeutics in the field of various diseases with OS-mediated pathology.
超氧化物歧化酶(SOD)是一种常见的抗氧化酶,主要存在于活细胞中。SOD的主要生理作用是解毒并维持氧化还原平衡,作为抵御活性氮物种(RNS)、活性氧物种(ROS)及其他此类潜在有害分子的第一道防线。SOD催化细胞中超氧阴离子自由基(O .)转化为分子氧(O )和过氧化氢(H O )。超氧化物歧化酶(SODs)在整个中枢神经系统的神经元和神经胶质细胞中均有细胞内和细胞外表达。内源性氧化应激(OS)与活性氧代谢产物(ROMs)生成增加、炎症、氧化还原平衡失调、线粒体功能障碍及生物能量危机相关,被认为是神经疾病中神经元丢失的先决条件。临床和遗传学研究表明,SOD基因突变与神经退行性疾病,如肌萎缩侧索硬化症(ALS)、亨廷顿病(HD)、帕金森病(PD)和阿尔茨海默病(AD)之间存在直接关联。因此,OS抑制剂被认为是预防神经元丢失的一种乐观方法。金属卟啉Mn(II)-环状多胺、氮氧化物和Mn(III)-Salen配合物等SOD模拟物已被设计并广泛用作治疗神经疾病的药物。SODs和SOD模拟物在各种由OS介导病理的疾病领域中是有前景的未来治疗方法。
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