1
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Vidi PA, Liu J, Bonin K, Bloom K. Closing the loops: chromatin loop dynamics after DNA damage. Nucleus 2025; 16:2438633. [PMID: 39720924 DOI: 10.1080/19491034.2024.2438633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2024] [Revised: 11/29/2024] [Accepted: 11/30/2024] [Indexed: 12/26/2024] Open
Abstract
Chromatin is a dynamic polymer in constant motion. These motions are heterogeneous between cells and within individual cell nuclei and are profoundly altered in response to DNA damage. The shifts in chromatin motions following genomic insults depend on the temporal and physical scales considered. They are also distinct in damaged and undamaged regions. In this review, we emphasize the role of chromatin tethering and loop formation in chromatin dynamics, with the view that pulsing loops are key contributors to chromatin motions. Chromatin tethers likely mediate micron-scale chromatin coherence predicted by polymer models and measured experimentally, and we propose that remodeling of the tethers in response to DNA breaks enables uncoupling of damaged and undamaged chromatin regions.
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Affiliation(s)
| | - Jing Liu
- Department of Physics and Astronomy, Purdue University, West Lafayette, IN, USA
| | - Keith Bonin
- Department of Physics, Wake Forest University, Winston-Salem, NC, USA
| | - Kerry Bloom
- Department of Biology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
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2
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Liang H, Zhou B, Li P, Zhang X, Zhang S, Zhang Y, Yao S, Qu S, Chen J. Stemness regulation in prostate cancer: prostate cancer stem cells and targeted therapy. Ann Med 2025; 57:2442067. [PMID: 39711287 DOI: 10.1080/07853890.2024.2442067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 11/07/2024] [Accepted: 11/22/2024] [Indexed: 12/24/2024] Open
Abstract
BACKGROUND Increasing evidence indicates that cancer stem cells (CSCs) and cancer stem-like cells form a special subpopulation of cells that are ubiquitous in tumors. These cells exhibit similar characteristics to those of normal stem cells in tissues; moreover, they are capable of self-renewal and differentiation, as well as high tumorigenicity and drug resistance. In prostate cancer (PCa), it is difficult to kill these cells using androgen signaling inhibitors and chemotherapy drugs. Consequently, the residual prostate cancer stem cells (PCSCs) mediate tumor recurrence and progression. OBJECTIVE This review aims to provide a comprehensive and up-to-date overview of PCSCs, with a particular emphasis on potential therapeutic strategies targeting these cells. METHODS After searching in PubMed and Embase databases using 'prostate cancer' and 'cancer stem cells' as keywords, studies related were compiled and examined. RESULTS In this review, we detail the origin and characteristics of PCSCs, introduce the regulatory pathways closely related to CSC survival and stemness maintenance, and discuss the link between epithelial-mesenchymal transition, tumor microenvironment and tumor stemness. Furthermore, we introduce the currently available therapeutic strategies targeting CSCs, including signaling pathway inhibitors, anti-apoptotic protein inhibitors, microRNAs, nanomedicine, and immunotherapy. Lastly, we summarize the limitations of current CSC research and mention future research directions. CONCLUSION A deeper understanding of the regulatory network and molecular markers of PCSCs could facilitate the development of novel therapeutic strategies targeting these cells. Previous preclinical studies have demonstrated the potential of this treatment approach. In the future, this may offer alternative treatment options for PCa patients.
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Affiliation(s)
- Hao Liang
- Department of Urology, Qilu Hospital of Shandong University (Qingdao), Qingdao, China
| | - Bin Zhou
- Department of Urology, Qilu Hospital of Shandong University, Jinan, China
| | - Peixin Li
- Department of Urology, Qilu Hospital of Shandong University, Jinan, China
| | - Xiaoyi Zhang
- Department of Urology, Qilu Hospital of Shandong University, Jinan, China
| | - Shijie Zhang
- Department of Urology, Qilu Hospital of Shandong University, Jinan, China
| | - Yaozhong Zhang
- Department of Urology, Qilu Hospital of Shandong University, Jinan, China
| | - Shengwen Yao
- Department of Urology, Qilu Hospital of Shandong University, Jinan, China
| | - Sifeng Qu
- Department of Urology, Qilu Hospital of Shandong University (Qingdao), Qingdao, China
| | - Jun Chen
- Department of Urology, Qilu Hospital of Shandong University (Qingdao), Qingdao, China
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3
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Wu S, Ma X, Zhang X, Du K, Shi C, Almaamari AA, Han B, Su S, Liu Y. Knockdown of NDUFAF6 inhibits breast cancer progression via promoting mitophagy and apoptosis. Cancer Biol Ther 2025; 26:2445220. [PMID: 39706687 DOI: 10.1080/15384047.2024.2445220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2024] [Revised: 12/04/2024] [Accepted: 12/17/2024] [Indexed: 12/23/2024] Open
Abstract
BACKGROUND While NDUFAF6 is implicated in breast cancer, its specific role remains unclear. METHODS The expression levels and prognostic significance of NDUFAF6 in breast cancer were assessed using The Cancer Genome Atlas, Gene Expression Omnibus, Kaplan-Meier plotter and cBio-Portal databases. We knocked down NDUFAF6 in breast cancer cells using small interfering RNA and investigated its effects on cell proliferation and migration ability. We performed gene expression analysis and validated key findings using protein analysis. We also assessed mitochondrial activity and cellular metabolism. RESULTS NDUFAF6 was highly expressed in breast cancer, which was associated with a poorer prognosis. Knockdown of NDUFAF6 reduced the proliferation and migration ability of breast cancer cells. Transcriptome analysis revealed 2,101 differentially expressed genes enriched in apoptosis and mitochondrial signaling pathways. Western blot results showed NDUFAF6 knockdown enhanced apoptosis. In addition, differential gene enrichment analysis was related to mitochondrial signaling pathways, and western blot results verified that mitophagy was enhanced in NDUFAF6 knockdown breast cancer cells. JC-1 assay also showed that mitochondrial dysfunction and reactive oxygen species content were increased after knocking down NDUFAF6. In addition, basal and maximal mitochondrial oxygen consumption decreased, and intracellular glycogen content increased. CONCLUSIONS Knockdown of NDUFAF6 resulted in apoptosis and mitophagy in breast cancer cells and NDUFAF6 may be a potential molecular target for breast cancer therapy.
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Affiliation(s)
- Shang Wu
- Department of Breast Center, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
- Hebei Provincial Key Laboratory of Tumor Microenvironment and Drug Resistance, Hebei Medical University, Shijiazhuang, China
| | - Xindi Ma
- Department of Breast Center, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
- Hebei Provincial Key Laboratory of Tumor Microenvironment and Drug Resistance, Hebei Medical University, Shijiazhuang, China
| | - Xiangmei Zhang
- Hebei Provincial Key Laboratory of Tumor Microenvironment and Drug Resistance, Hebei Medical University, Shijiazhuang, China
- Department of Research Center, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Kaiye Du
- Hebei Provincial Key Laboratory of Tumor Microenvironment and Drug Resistance, Hebei Medical University, Shijiazhuang, China
- Radiotherapy Department, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Chao Shi
- Department of Breast Center, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
- Hebei Provincial Key Laboratory of Tumor Microenvironment and Drug Resistance, Hebei Medical University, Shijiazhuang, China
| | - Ahmed Ali Almaamari
- The Key Laboratory of Neural and Vascular Biology, The Key Laboratory of New Drug Pharmacology and Toxicology, Department of Pharmacology, Ministry of Education, Hebei Medical University, Shijiazhuang, China
| | - Boye Han
- The Key Laboratory of Neural and Vascular Biology, The Key Laboratory of New Drug Pharmacology and Toxicology, Department of Pharmacology, Ministry of Education, Hebei Medical University, Shijiazhuang, China
| | - Suwen Su
- The Key Laboratory of Neural and Vascular Biology, The Key Laboratory of New Drug Pharmacology and Toxicology, Department of Pharmacology, Ministry of Education, Hebei Medical University, Shijiazhuang, China
| | - Yunjiang Liu
- Hebei Provincial Key Laboratory of Tumor Microenvironment and Drug Resistance, Hebei Medical University, Shijiazhuang, China
- The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
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4
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Zhao W, Lin L, Kelly KM, Opsasnick LA, Needham BL, Liu Y, Sen S, Smith JA. Epigenome-wide association study of perceived discrimination in the Multi-Ethnic Study of Atherosclerosis (MESA). Epigenetics 2025; 20:2445447. [PMID: 39825881 DOI: 10.1080/15592294.2024.2445447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2024] [Revised: 12/11/2024] [Accepted: 12/16/2024] [Indexed: 01/20/2025] Open
Abstract
Perceived discrimination, recognized as a chronic psychosocial stressor, has adverse consequences on health. DNA methylation (DNAm) may be a potential mechanism by which stressors get embedded into the human body at the molecular level and subsequently affect health outcomes. However, relatively little is known about the effects of perceived discrimination on DNAm. To identify the DNAm sites across the epigenome that are associated with discrimination, we conducted epigenome-wide association analyses (EWAS) of three discrimination measures (everyday discrimination, race-related major discrimination, and non-race-related major discrimination) in 1,151 participants, including 565 non-Hispanic White, 221 African American, and 365 Hispanic individuals, from the Multi-Ethnic Study of Atherosclerosis (MESA). We conducted both race/ethnicity-stratified analyses as well as trans-ancestry meta-analyses. At false discovery rate of 10%, 7 CpGs and 4 differentially methylated regions (DMRs) containing 11 CpGs were associated with perceived discrimination exposures in at least one racial/ethnic group or in meta-analysis. Identified CpGs and/or nearby genes have been implicated in cellular development pathways, transcription factor binding, cancer and multiple autoimmune and/or inflammatory diseases. Of the identified CpGs (7 individual CpGs and 11 within DMRs), two CpGs and one CpG within a DMR were associated with expression of cis genes NDUFS5, AK1RIN1, NCF4 and ADSSL1. Our study demonstrated the potential influence of discrimination on DNAm and subsequent gene expression.
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Affiliation(s)
- Wei Zhao
- Survey Research Center, Institute for Social Research, University of Michigan, Ann Arbor, MI, USA
- Department of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, MI, USA
| | - Lisha Lin
- Department of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, MI, USA
| | - Kristen M Kelly
- Institute for Behavioral Genetics, University of Colorado, Boulder, CO, USA
| | - Lauren A Opsasnick
- Department of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, MI, USA
| | - Belinda L Needham
- Department of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, MI, USA
| | - Yongmei Liu
- Department of Medicine, Divisions of Cardiology and Neurology, Duke University Medical Center, Durham, NC, USA
| | - Srijan Sen
- Michigan Neuroscience Institute, University of Michigan, Ann Arbor, MI, USA
| | - Jennifer A Smith
- Survey Research Center, Institute for Social Research, University of Michigan, Ann Arbor, MI, USA
- Department of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, MI, USA
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5
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Choi JC. Perinuclear organelle trauma at the nexus of cardiomyopathy pathogenesis arising from loss of function LMNA mutation. Nucleus 2025; 16:2449500. [PMID: 39789731 PMCID: PMC11730615 DOI: 10.1080/19491034.2024.2449500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2024] [Revised: 12/22/2024] [Accepted: 12/30/2024] [Indexed: 01/12/2025] Open
Abstract
Over the past 25 years, nuclear envelope (NE) perturbations have been reported in various experimental models with mutations in the LMNA gene. Although the hypothesis that NE perturbations from LMNA mutations are a fundamental feature of striated muscle damage has garnered wide acceptance, the molecular sequalae provoked by the NE damage and how they underlie disease pathogenesis such as cardiomyopathy (LMNA cardiomyopathy) remain poorly understood. We recently shed light on one such consequence, by employing a cardiomyocyte-specific Lmna deletion in vivo in the adult heart. We observed extensive NE perturbations prior to cardiac function deterioration with collateral damage in the perinuclear space. The Golgi is particularly affected, leading to cytoprotective stress responses that are likely disrupted by the progressive deterioration of the Golgi itself. In this review, we discuss the etiology of LMNA cardiomyopathy with perinuclear 'organelle trauma' as the nexus between NE damage and disease pathogenesis.
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Affiliation(s)
- Jason C. Choi
- Center for Translational Medicine, Department of Medicine, Thomas Jefferson University, Philadelphia, PA, USA
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Zarandi PK, Ghiasi M, Heiat M. The role and function of lncRNA in ageing-associated liver diseases. RNA Biol 2025; 22:1-8. [PMID: 39697114 PMCID: PMC11660375 DOI: 10.1080/15476286.2024.2440678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Revised: 10/09/2024] [Accepted: 12/04/2024] [Indexed: 12/20/2024] Open
Abstract
Liver diseases are a significant global health issue, characterized by elevated levels of disorder and death. The substantial impact of ageing on liver diseases and their prognosis is evident. Multiple processes are involved in the ageing process, which ultimately leads to functional deterioration of this organ. The process of liver ageing not only renders the liver more susceptible to diseases but also compromises the integrity of other organs due to the liver's critical function in metabolism regulation. A growing body of research suggests that long non-coding RNAs (lncRNAs) play a significant role in the majority of pathophysiological pathways. They regulate gene expression through a variety of interactions with microRNAs (miRNAs), messenger RNAs (mRNAs), DNA, or proteins. LncRNAs exert a major influence on the progression of age-related liver diseases through the regulation of cell proliferation, necrosis, apoptosis, senescence, and metabolic reprogramming. A concise overview of the current understanding of lncRNAs and their potential impact on the development of age-related liver diseases will be provided in this mini-review.
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Affiliation(s)
- Peyman Kheirandish Zarandi
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
- Cancer Biology Signaling Pathway Interest Group (CBSPIG), Universal Scientific Education and Research Network (USERN), Tehran, Iran
| | - Mohsen Ghiasi
- Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Mohammad Heiat
- Baqiyatallah Research Center for Gastroenterology and Liver Diseases (BRCGL), Baqiyatallah University of Medical Sciences, Tehran, Iran
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Liu S, Chen L, Shang Y. CEACAM5 exacerbates asthma by inducing ferroptosis and autophagy in airway epithelial cells through the JAK/STAT6-dependent pathway. Redox Rep 2025; 30:2444755. [PMID: 39844719 PMCID: PMC11758806 DOI: 10.1080/13510002.2024.2444755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2025] Open
Abstract
OBJECTIVES Asthma, a prevalent chronic disease, poses significant health threats and burdens healthcare systems. This study focused on the role of bronchial epithelial cells in asthma pathophysiology. METHODS Bioinformatics was used to identify key asthmarelated genes. An ovalbumin-sensitized mouse model and an IL-13-stimulated Beas-2B cell model were established for further investigation. RESULTS Carcinoembryonic antigen-related cell adhesion molecule 5 (CEACAM5) was identified as a crucial gene in asthma. CEACAM5 expression was elevated in asthmatic mouse lung tissues and IL-13-stimulated Beas-2B cells, primarily in bronchial epithelial cells. CEACAM5 induced reactive oxygen species (ROS), lipid peroxidation, and ferroptosis. Interfering with CEACAM5 reduced ROS, malondialdehyde levels, and enhanced antioxidant capacity, while inhibiting iron accumulation and autophagy. Overexpression of CEACAM5 in IL-13-stimulated cells activated the JAK/STAT6 pathway, which was necessary for CEACAM5-induced autophagy, ROS accumulation, lipid peroxidation, and ferroptosis. CONCLUSION CEACAM5 promotes ferroptosis and autophagy in airway epithelial cells via the JAK/STAT6 pathway, exacerbating asthma symptoms. It represents a potential target for clinical treatment.
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Affiliation(s)
- Si Liu
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, People’s Republic of China
| | - Li Chen
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, People’s Republic of China
| | - Yunxiao Shang
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, People’s Republic of China
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8
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Eom H, Choi YJ, Nandre R, Kim M, Oh YL, Kim S, Nakazawa T, Honda Y, Ro HS. Targeted insertion of heterogenous DNA using Cas9-gRNA ribonucleoprotein-mediated gene editing in Ganoderma lucidum. Bioengineered 2025; 16:2458376. [PMID: 39879084 PMCID: PMC11781247 DOI: 10.1080/21655979.2025.2458376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2024] [Revised: 10/05/2024] [Accepted: 10/09/2024] [Indexed: 01/31/2025] Open
Abstract
Gene editing is emerging as a powerful tool for introducing novel functionalities in mushrooms. While CRISPR/Cas9-induced double-strand breaks (DSBs) typically rely on non-homologous end joining (NHEJ) for gene disruption, precise insertion of heterologous DNA in mushrooms is less explored. Here, we evaluated the efficacy of inserting donor DNAs (8-1008 bp) with or without homologous arms at Cas9-gRNA RNP-induced DSBs. Co-transformation of donor DNAs with RNP targeting the pyrG gene in Ganoderma lucidum yielded 184 transformants without homologous arms and 781 with 300-bp homologous arms (HR_donor DNAs). Restriction analysis and sequencing identified 122 hR_donor DNA transformants with complete donor DNA sequences, achieving 15.6% HDR efficiency (122/781), contrasting with 8 instances via NHEJ from the 184 transformants. These findings highlight the viability of HDR for precise genomic editing in mushrooms, enabling targeted modifications to enhance functionalities.
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Affiliation(s)
- Hyerang Eom
- Department of BioMedical Bigdata (BK21) and Research Institute of Life Sciences, Gyeongsang National University, Jinju, Republic of Korea
| | - Yeon-Jae Choi
- Department of BioMedical Bigdata (BK21) and Research Institute of Life Sciences, Gyeongsang National University, Jinju, Republic of Korea
| | - Rutuja Nandre
- Department of BioMedical Bigdata (BK21) and Research Institute of Life Sciences, Gyeongsang National University, Jinju, Republic of Korea
| | - Minseek Kim
- Mushroom Science Division, National Institute of Horticultural and Herbal Science, Rural Development Administration, Eumseong, Republic of Korea
| | - Youn-Lee Oh
- Mushroom Science Division, National Institute of Horticultural and Herbal Science, Rural Development Administration, Eumseong, Republic of Korea
| | - Sinil Kim
- Biological Resources Utilization Division, National Institute of Biological Resources(NIBR), Incheon, Republic of Korea
| | - Takehito Nakazawa
- Laboratory of Forest Biochemistry, Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| | - Yoichi Honda
- Laboratory of Forest Biochemistry, Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| | - Hyeon-Su Ro
- Department of BioMedical Bigdata (BK21) and Research Institute of Life Sciences, Gyeongsang National University, Jinju, Republic of Korea
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9
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Yin Q, Ren Z, Wu D, Feng Z, Zhu Z, Jaisi A, Wang H, Yang M. Comparative effects of biocontrol agent and pathogen on Nicotiana tabacum: insights into fungal-plant interactions. PLANT SIGNALING & BEHAVIOR 2025; 20:2453562. [PMID: 39819420 DOI: 10.1080/15592324.2025.2453562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2024] [Revised: 01/03/2025] [Accepted: 01/08/2025] [Indexed: 01/30/2025]
Abstract
Tobacco (Nicotiana tabacum) black shank disease, caused by Phytophthora nicotianae, is a significant threat to tobacco crops, leading to severe economic losses. Prolonged use of agrochemicals to control this disease has prompted the exploration of eco-friendly biological control strategies. This study investigated the effects of Trichoderma harzianum, a biocontrol agent, on N. tabacum in comparison to P. nicotianae, focusing on growth, biomass, root morphology and anatomy, hormonal changes, and osmotic regulation. T. harzianum significantly enhanced plant growth, biomass accumulation, root system development, and physiological attributes such as photosynthetic pigment levels and antioxidant enzyme activity. In contrast, P. nicotianae negatively impacted these parameters, inhibiting growth and physiological function. Notably, T. harzianum increased proline content and enhanced induced resistance mechanisms, mitigating stress and promoting overall plant health. These findings highlight the potential of T. harzianum as a sustainable solution for managing black shank disease while improving tobacco crop productivity.
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Affiliation(s)
- Quanyu Yin
- National Tobacco Cultivation, Physiology and Biochemistry Research Center, College of Tobacco Science, Henan Agricultural University, Zhengzhou, Henan, China
| | - Zhichao Ren
- National Tobacco Cultivation, Physiology and Biochemistry Research Center, College of Tobacco Science, Henan Agricultural University, Zhengzhou, Henan, China
| | - Dongling Wu
- Luoyang Municipal Tobacco Company, Henan Tobacco Industry Co. LTD, Luoyang, Henan, China
| | - Zhao Feng
- National Tobacco Cultivation, Physiology and Biochemistry Research Center, College of Tobacco Science, Henan Agricultural University, Zhengzhou, Henan, China
| | - Zhengkang Zhu
- National Tobacco Cultivation, Physiology and Biochemistry Research Center, College of Tobacco Science, Henan Agricultural University, Zhengzhou, Henan, China
| | - Amit Jaisi
- School of Pharmacy, Walailak University, Nakhon Si Thammarat, Thailand
- Drug and Cosmetics Excellence Center, Walailak University, Nakhon Si Thammarat, Thailand
| | - Hui Wang
- Luoyang Municipal Tobacco Company, Henan Tobacco Industry Co. LTD, Luoyang, Henan, China
| | - Mengquan Yang
- National Tobacco Cultivation, Physiology and Biochemistry Research Center, College of Tobacco Science, Henan Agricultural University, Zhengzhou, Henan, China
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10
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Yao H, Wu R, Du D, Ai F, Yang F, Li Y, Qi S. Flavonoids from Polypodium hastatum as neuroprotective agents attenuate cerebral ischemia/reperfusion injury in vitro and in vivo via activating Nrf2. Redox Rep 2025; 30:2440204. [PMID: 39702961 DOI: 10.1080/13510002.2024.2440204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2024] Open
Abstract
OBJECTIVES Cerebral ischemic stroke is a leading cause of death worldwide. Though timely reperfusion reduces the infarction size, it exacerbates neuronal apoptosis due to oxidative stress. Nuclear factor erythroid 2-related factor 2 (Nrf2) is a transcription factor regulating the expression of antioxidant enzymes. Activating Nrf2 gives a therapeutic approach to ischemic stroke. METHODS Herein we explored flavonoids identified from Polypodium hastatum as Nrf2 activators and their protective effects on PC12 cells injured by oxygen and glucose deprivation/restoration (OGD/R) as well as middle cerebral artery occlusion (MCAO) mice. RESULTS The results showed among these flavonoids, AAKR significantly improved the survival of PC12 cells induced by OGD/R and activated Nrf2 in a Keap1-dependent manner. Further investigations have disclosed AAKR attenuated oxidative stress, mitochondrial dysfunction and following apoptosis resulting from OGD/R. Meanwhile, activation of Nrf2 by AAKR was involved in the protective effects. Finally, it was found that AAKR could protect MCAO mice brains against ischemia/reperfusion injury via activating Nrf2. DISCUSSION This investigation could provide lead compounds for the discovery of novel Nrf2 activators targeting ischemia/reperfusion injury.
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Affiliation(s)
- Huankai Yao
- Department of Microbial and Biochemical Pharmacy, School of Pharmacy & Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, People's Republic of China
| | - Ruiqing Wu
- Department of Microbial and Biochemical Pharmacy, School of Pharmacy & Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, People's Republic of China
| | - Dan Du
- Department of Microbial and Biochemical Pharmacy, School of Pharmacy & Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, People's Republic of China
| | - Fengwei Ai
- Department of Microbial and Biochemical Pharmacy, School of Pharmacy & Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, People's Republic of China
| | - Feng Yang
- School of Stomatology, Xuzhou Medical University, Xuzhou, People's Republic of China
| | - Yan Li
- Department of Microbial and Biochemical Pharmacy, School of Pharmacy & Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, People's Republic of China
| | - Suhua Qi
- School of Medical Technology & Xuzhou Key Laboratory of Laboratory Diagnostics, Xuzhou Medical University, Xuzhou, People's Republic of China
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11
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Nguyen TD, Winek MA, Rao MK, Dhyani SP, Lee MY. Nuclear envelope components in vascular mechanotransduction: emerging roles in vascular health and disease. Nucleus 2025; 16:2453752. [PMID: 39827403 DOI: 10.1080/19491034.2025.2453752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2024] [Revised: 01/08/2025] [Accepted: 01/09/2025] [Indexed: 01/22/2025] Open
Abstract
The vascular network, uniquely sensitive to mechanical changes, translates biophysical forces into biochemical signals for vessel function. This process relies on the cell's architectural integrity, enabling uniform responses to physical stimuli. Recently, the nuclear envelope (NE) has emerged as a key regulator of vascular cell function. Studies implicate nucleoskeletal elements (e.g. nuclear lamina) and the linker of nucleoskeleton and cytoskeleton (LINC) complex in force transmission, emphasizing nucleo-cytoskeletal communication in mechanotransduction. The nuclear pore complex (NPC) and its component proteins (i.e. nucleoporins) also play roles in cardiovascular disease (CVD) progression. We herein summarize evidence on the roles of nuclear lamina proteins, LINC complex members, and nucleoporins in endothelial and vascular cell mechanotransduction. Numerous studies attribute NE components in cytoskeletal-related cellular behaviors to insinuate dysregulation of nucleocytoskeletal feedback and nucleocytoplasmic transport as a mechanism of endothelial and vascular dysfunction, and hence implications for aging and vascular pathophysiology.
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Affiliation(s)
- Tung D Nguyen
- Department of Physiology and Biophysics, The University of Illinois at Chicago - College of Medicine, Chicago, IL, USA
- The Center for Cardiovascular Research, The University of Illinois at Chicago - College of Medicine, Chicago, IL, USA
| | - Michael A Winek
- Department of Physiology and Biophysics, The University of Illinois at Chicago - College of Medicine, Chicago, IL, USA
| | - Mihir K Rao
- Department of Physiology and Biophysics, The University of Illinois at Chicago - College of Medicine, Chicago, IL, USA
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