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    Editorial
  • Editorial
    YIN Dong-Min△, WANG Yun△
  • ZHOU Hai-Qian, JIN Hao-Jie-Yin, ZHANG Jia-Wei, ZHU Zhen, YIN Dong-Min△
    RNAs are subject to a variety of chemical modifications that confer structural diversity to the nucleotides and are involved in the regulation of RNA metabolism, protein synthesis and a variety of cellular functions.N4-acetylcytidine (ac4C) is the only known form of RNA acetylation in eukaryotes.Ac4C has long been identified in ribosomal RNA (rRNA) and transfer RNA (tRNA). Recent studies have shown that ac4C also occurs in messenger RNA (mRNA), promoting mRNA stability and translation efficiency. Compared with the widely studied mRNA methylation modifications (e.g.m6A), the functions and regulatory mechanisms of ac4C modifications of mR-NA are far less well-known. This review aims to summarize the function of ac4C modifications of mRNA in physiological and pathological processes in the nervous system, such as learning and memory, pain, and Alzheimer’s disease. Moreover, this review will discuss the critical questions that should be addressed in the ac4C field to promote the research of RNA modification in the nervous system.
  • PENG Wen-Zhu1, CHEN Qi1, XUE Min-Yue1, 2, SUN Dai-Jing1, JIANG Yan1, △
    Neuropsychiatric disorders impact the lives of tens of millions of people globally and have become an increasingly severe social problem. Genetics is one of the critical factors contributing to the etiology of neuropsychiatric disorders. However, disease-associated risk loci, identified by genome-wide association studies (GWAS), are primarily located in non-coding regions of the human genome, presenting one of the most significant challenges in identifying disease-associated risk genes and elucidating the pathogenesis. Three-dimensional (3D) genomics focuses on spatial chromatin architecture and long-distance chromatin interactions. The development and application of 3D genomic technologies contribute to the identification of disease-associated risk genes, providing direct evidence of the chromatin interactions between disease-associated risk loci and their target genes. Meanwhile, cell-type-specific interactions bring new insights into the comprehension of pathogenesis. Lastly, the reorganization of spatial chromatin architectures regulates the transcription of multiple genes collectively, which may explain the complexity and heterogeneity of neuropsychiatric disorders. Based on a brief introduction to the basic concepts and applications of 3D genomics, this review primarily discusses the research progress of 3D genomics in the field of neuropsychiatric disorders, including schizophrenia (SCZ), Alzheimer's disease (AD), autism spectrum disorder (ASD), and others, aiming to offer new perspectives on associated diseases pathogenesis.
  • SHUI Yu-Xuan, WANG Han-Lin, YU Jun, JI Sheng-Jian△
    To date, over 170 types of RNA modifications have been identified. As reversible and dynamic processes, RNA modifications participate in post-transcriptional regulation of mRNA, as well as chromatin and transcriptional regulation. N6-methyladenosine (m6A) modification, the most prevalent one, is currently the most extensively studied and understood type of RNA modification, with an increasing body of research revealing its relevance to the occurrence, development, and treatment of various diseases. The roles of other RNA modifications are also being progressively elucidated. Previous studies and discussions on RNA modifications in diseases have mainly focused on cancer; however, recent studies have confirmed the participation of RNA modifications in the regulation of neurological and psychiatric disorders. This review aims to summarize the roles and mechanisms of RNA modifications in neurological and psychiatric disorders, providing new insights for drug development and clinical treatment.
  • WANG Ya-Jun1, 2, CAO Jian-Bo1, 3, HE Xiao-Xiao1, 3, △
    Epigenetic regulation plays critical roles in the development and homeostasis of the nervous system. Protein arginine methylation is a post-translational modification commonly found in nearly all eukaryotic cells, which regulates a variety of physiological events, such as gene transcription regulation or RNA splicing, via mediating the methylation of histone or nonhistone targets. This review aims to recapitulate the regulatory mechanism underlying protein arginine methyltransferase 5 (PRMT5) function, and summarize the crucial roles of PRMT5 in neural development and neurological diseases, highlighting its epigenetic regulatory mechanism in the nervous system.
  • Hang-Hang1, LI Hong-Lin2, HUANG Li -Na1, JIANG Xi-Cheng1, △
    Protein lactylation is a recently discovered post-translational modification, and its neuroprotective effect in cerebral ischemia-reperfusion injury has garnered increasing attention. Cerebral ischemia-reperfusion injury is a complex pathological process that occurs following reperfusion therapy after ischemic stroke, involving oxidative stress and inflammatory responses. This article reviews the neuroprotective mechanisms of protein lactylation in cerebral ischemia-reperfusion injury and highlights recent research progress. Lactate molecules can covalently bind to lysine residues and affect the function and activity of proteins, thus playing significant roles in cell metabolism, gene expression regulation, and cell signaling. Research has indicated that protein lactylation exerts neuroprotective effects by regulating inflammatory and oxidative stress responses, helping to reduce neuronal damage and apoptosis. In-depth studies of the biological functions of protein lactylation and its mechanism of action in cerebral ischemia-reperfusion injury not only aid in elucidating the pathophysiological mechanisms underlying cerebral ischemia-reperfusion injury, but also provide potential targets and theoretical basis for the development of new therapeutic drugs for cerebral ischemia-reperfusion injury.
  • TIAN Shuo1, # , CHU Fan1, # , ZHAO Nan1, 2, 3, JIAO Shi-Yu2, 4, QU Ai-Juan1, 2, 3, △
    Atherosclerosis is the pathophysiological basis of a variety of cardiovascular diseases, with monocytes/macrophages being a key cell type that participates in the initiation of vascular inflammation, the formation, progression and rupture of atherosclerotic plaques. In recent years, with the rapid development of single-cell sequencing technology, the high heterogeneity and plasticity of mononuclear macrophages in plaques have been gradually elucidated. This article reviews the latest monocyte/macrophage subtypes identified in patients and mouse models of atherosclerosis through single-cell sequencing technology, summarizes their markers, functional heterogeneity, and underlying mechanisms, with the aim of providing more precise directions for the diagnosis and treatment of atherosclerosis.
  • CHEN Xin-Ling1, 2, ZHAI Shao-Qian1, WU Zhi-Jing1, CAO Cheng-Zhu3, WU Qiong3, MA Xue-Man4, △ , SU Zhan-Hai3, △
    Hypoxic cell damage is implicated in the etiology of various diseases, posing a significant threat to human health. Therefore, a comprehensive exploration of the underlying mechanisms of hypoxic cell damage is of crucial importance. Recent research has elucidated a compelling correlation between hypoxic cell damage and key cellular processes, including apoptosis, autophagy, pyroptosis, ferroptosis, cuproptosis, and parthanatos. The aim of this article is to integrate current knowledge on the mechanisms underlying hypoxic cell injury. It seeks to clarify the critical determinants and regulatory pathways involved in these processes, and to offer innovative perspectives on preventive and therapeutic approaches for hypoxia-induced diseases.
  • ZHAO Qi1, LIU Zhi-Wei1, WANG Yong1, SHEN Jie2, SUN Zhen-Liang2, HU Zhen-Lin1, △
    The main function of sebaceous glands (SG) is producing sebum, which is an integral component of the skin barrier, regulates the growth of cutaneous microbiota via its acid and antimicrobial lipid content, and modulates skin inflammation and immunity. Dysfunctions of SG play critical roles in the pathogenesis of common dermatoses such as acne, seborrhea, and atopic dermatitis. The endocannabinoid system (ECS) is a complex homeostatic signaling network that comprises endocannabinoids, cannabinoid receptors, and enzymes responsible for endocannabinoid transport, synthesis, and degradation. Recent evidence has indicated the expression and functional involvement of ECS components in human SGs, suggesting the therapeutic potential of ECS modulation in the management of SG-associated diseases. This review provides an overview of research progress on the regulatory effects of ECS on SG functions.
  • Physiological Science and Clinical Medicine
  • Physiological Science and Clinical Medicine
    XU Chu-Rong, GOU Ge, WU Shi-Qi, MA Wei△
    Copper plays a crucial role in a variety of cellular processes, such as energy metabolism, mitochondrial respiration, and antioxidation. Intracellular copper homeostasis relies on the dynamic balance among copper intake, storage, and efflux. Disruptions in copper metabolism can impact cellular function and viability. Elevated copper levels have been observed in various neurodegenerative diseases and tumors, with the underlying pathological mechanisms closely associated with cuproptosis induced by copper overload. This article provides in-depth insights into intracellular copper homeostasis and its maintenance, as well as the roles and molecular mechanisms of copper metabolic disorders and cuproptosis in neurodegenerative diseases and tumorigenesis.
  • Review on the Nobel Prize
  • Review on the Nobel Prize
    LU Ke-Jia, ZHANG Xiao-Wei △
  • New Method and Technology
  • New Method and Technology
    LIU Kai, CAO Xia, YU Jiang-NanΔ, XU Xi-Ming
    Over the past decade, since the initial elucidation of self-assembling brain organoid construction protocols, significant progress has been made in this field. These brain organoids exhibit cell types and structures highly similar to those of the developing human brain, making them ideal models for studying the pathogenesis and etiology of both acquired and inherited brain diseases. In addition, the development of region-specific brain organoids has provided targeted platforms for drug discovery and toxicity testing. As a research tool, brain organoids offer new perspectives for unraveling the molecular mechanisms underlying human neurological diseases. In this article, we review the techniques for constructing brain organoids, and their applications in modeling neurological diseases, to provide valuable insights and references for applied research in this field.
  • Monograph
  • Monograph
    WANG Jia-Qi1, ZHANG Feng-Hui2, LI Yue-Lin2, HU Hui-Yuan1, 2, △
    Cardiac arrhythmias are among cardiovascular diseases with high morbidity and mortality rates worldwide, associated with impaired cardiac ion channel function and abnormal conduction of electrophysiological signals in cardiomyocytes. The cardiac sodium channel NaV1.5 plays a crucial role in the initiation and propagation of action potentials in cardiomyocytes. Abnormal expression and regulation of NaV1.5 due to gene mutations constitute a significant biological basis for the occurrence of arrhythmias. This article summarizes the structure and function of NaV1.5, as well as its relationship with cardiac arrhythmias, with the aim of providing a theoretical basis for future research and development of cardiovascular drugs, their clinical applications, and drug-induced cardiotoxicity.
  • Monograph
    CHEN Jun# , HAO Jun-Wei# , LI Si-Yun, LUO Hui-Shan, SUN Li-Hua, XUAN Li-Na△
    Autophagy is a dynamic protective mechanism that degrades macromolecules and organelles within cells to maintain organismal balance. Most eukaryotic cells rely on autophagy to regulate intracellular homeostasis. Under certain stress conditions, such as ischemia and hypoxia, autophagy exerts protective effects to counteract cellular damage. However, selective overactivation of autophagy can lead to a unique form of programmed cell death, distinct from apoptosis and necrosis, termed autosis. This review summarizes the distinctions between autosis and other cell death modalities, the morphological characteristics of autosis, the conditions that induce autosis, and current research progress on autosis, aiming to provide a theoretical basis for further research on autosis and to offer a scientific reference for subsequent studies and future clinical disease treatment.
  • Cover
  • Cover
    Cover picture designer: ZHOU Hai-Qian, HUANG Li-Ping, YIN Dong-Min
    2024, 55(5): 490-490.