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Li Y, Wang T, Li X, Li W, Lei Y, Shang Q, Zheng Z, Fang J, Cao L, Yu D, Meng Z, Zhang S, Liu R, Liu C, Xu C, Ding Y, Chen Y, Candi E, Melino G, Wang Y, Shi Y, Shao C. SOD2 promotes the immunosuppressive function of mesenchymal stem cells at the expense of adipocyte differentiation. Mol Ther 2024; 32:1144-1157. [PMID: 38310354 DOI: 10.1016/j.ymthe.2024.01.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 11/28/2023] [Accepted: 01/30/2024] [Indexed: 02/05/2024] Open
Abstract
The potent immunomodulatory function of mesenchymal stem/stromal cells (MSCs) elicited by proinflammatory cytokines IFN-γ and TNF-α (IT) is critical to resolve inflammation and promote tissue repair. However, little is known about how the immunomodulatory capability of MSCs is related to their differentiation competency in the inflammatory microenvironment. In this study, we demonstrate that the adipocyte differentiation and immunomodulatory function of human adipose tissue-derived MSCs (MSC(AD)s) are mutually exclusive. Mitochondrial reactive oxygen species (mtROS), which promote adipocyte differentiation, were decreased in MSC(AD)s due to IT-induced upregulation of superoxide dismutase 2 (SOD2). Furthermore, knockdown of SOD2 led to enhanced adipogenic differentiation but reduced immunosuppression capability of MSC(AD)s. Interestingly, the adipogenic differentiation was associated with increased mitochondrial biogenesis and upregulation of peroxisome proliferator-activated receptor gamma coactivator-1 alpha (PPARGC1A/PGC-1α) expression. IT inhibited PGC-1α expression and decreased mitochondrial mass but promoted glycolysis in an SOD2-dependent manner. MSC(AD)s lacking SOD2 were compromised in their therapeutic efficacy in DSS-induced colitis in mice. Taken together, these findings indicate that the adipogenic differentiation and immunomodulation of MSC(AD)s may compete for resources in fulfilling the respective biosynthetic needs. Blocking of adipogenic differentiation by mitochondrial antioxidant may represent a novel strategy to enhance the immunosuppressive activity of MSCs in the inflammatory microenvironment.
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Affiliation(s)
- Yanan Li
- The First Affiliated Hospital of Soochow University, State Key Laboratory of Radiation Medicine and Protection, Institutes for Translational Medicine, Key Laboratory of Stem Cells and Medical Biomaterials of Jiangsu Province, Soochow University Suzhou Medical College, Suzhou, Jiangsu 215123, China; Department of Experimental Medicine, TOR, University of Rome Tor Vergata, 00133 Rome, Italy
| | - Tingting Wang
- The First Affiliated Hospital of Soochow University, State Key Laboratory of Radiation Medicine and Protection, Institutes for Translational Medicine, Key Laboratory of Stem Cells and Medical Biomaterials of Jiangsu Province, Soochow University Suzhou Medical College, Suzhou, Jiangsu 215123, China
| | - Xiaolei Li
- The First Affiliated Hospital of Soochow University, State Key Laboratory of Radiation Medicine and Protection, Institutes for Translational Medicine, Key Laboratory of Stem Cells and Medical Biomaterials of Jiangsu Province, Soochow University Suzhou Medical College, Suzhou, Jiangsu 215123, China
| | - Wen Li
- The First Affiliated Hospital of Soochow University, State Key Laboratory of Radiation Medicine and Protection, Institutes for Translational Medicine, Key Laboratory of Stem Cells and Medical Biomaterials of Jiangsu Province, Soochow University Suzhou Medical College, Suzhou, Jiangsu 215123, China
| | - Yan Lei
- The First Affiliated Hospital of Soochow University, State Key Laboratory of Radiation Medicine and Protection, Institutes for Translational Medicine, Key Laboratory of Stem Cells and Medical Biomaterials of Jiangsu Province, Soochow University Suzhou Medical College, Suzhou, Jiangsu 215123, China
| | - Qianwen Shang
- The First Affiliated Hospital of Soochow University, State Key Laboratory of Radiation Medicine and Protection, Institutes for Translational Medicine, Key Laboratory of Stem Cells and Medical Biomaterials of Jiangsu Province, Soochow University Suzhou Medical College, Suzhou, Jiangsu 215123, China
| | - Zhiyuan Zheng
- The First Affiliated Hospital of Soochow University, State Key Laboratory of Radiation Medicine and Protection, Institutes for Translational Medicine, Key Laboratory of Stem Cells and Medical Biomaterials of Jiangsu Province, Soochow University Suzhou Medical College, Suzhou, Jiangsu 215123, China
| | - Jiankai Fang
- The First Affiliated Hospital of Soochow University, State Key Laboratory of Radiation Medicine and Protection, Institutes for Translational Medicine, Key Laboratory of Stem Cells and Medical Biomaterials of Jiangsu Province, Soochow University Suzhou Medical College, Suzhou, Jiangsu 215123, China
| | - Lijuan Cao
- The First Affiliated Hospital of Soochow University, State Key Laboratory of Radiation Medicine and Protection, Institutes for Translational Medicine, Key Laboratory of Stem Cells and Medical Biomaterials of Jiangsu Province, Soochow University Suzhou Medical College, Suzhou, Jiangsu 215123, China; Department of Experimental Medicine, TOR, University of Rome Tor Vergata, 00133 Rome, Italy
| | - Daojiang Yu
- The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215123, China
| | - Zhenzhen Meng
- The First Affiliated Hospital of Soochow University, State Key Laboratory of Radiation Medicine and Protection, Institutes for Translational Medicine, Key Laboratory of Stem Cells and Medical Biomaterials of Jiangsu Province, Soochow University Suzhou Medical College, Suzhou, Jiangsu 215123, China
| | - Shengchao Zhang
- The First Affiliated Hospital of Soochow University, State Key Laboratory of Radiation Medicine and Protection, Institutes for Translational Medicine, Key Laboratory of Stem Cells and Medical Biomaterials of Jiangsu Province, Soochow University Suzhou Medical College, Suzhou, Jiangsu 215123, China
| | - Rui Liu
- The First Affiliated Hospital of Soochow University, State Key Laboratory of Radiation Medicine and Protection, Institutes for Translational Medicine, Key Laboratory of Stem Cells and Medical Biomaterials of Jiangsu Province, Soochow University Suzhou Medical College, Suzhou, Jiangsu 215123, China; Department of Experimental Medicine, TOR, University of Rome Tor Vergata, 00133 Rome, Italy
| | - Chunxiao Liu
- The First Affiliated Hospital of Soochow University, State Key Laboratory of Radiation Medicine and Protection, Institutes for Translational Medicine, Key Laboratory of Stem Cells and Medical Biomaterials of Jiangsu Province, Soochow University Suzhou Medical College, Suzhou, Jiangsu 215123, China
| | - Chenchang Xu
- The First Affiliated Hospital of Soochow University, State Key Laboratory of Radiation Medicine and Protection, Institutes for Translational Medicine, Key Laboratory of Stem Cells and Medical Biomaterials of Jiangsu Province, Soochow University Suzhou Medical College, Suzhou, Jiangsu 215123, China
| | - Yayun Ding
- The First Affiliated Hospital of Soochow University, State Key Laboratory of Radiation Medicine and Protection, Institutes for Translational Medicine, Key Laboratory of Stem Cells and Medical Biomaterials of Jiangsu Province, Soochow University Suzhou Medical College, Suzhou, Jiangsu 215123, China
| | - Yongjing Chen
- The First Affiliated Hospital of Soochow University, State Key Laboratory of Radiation Medicine and Protection, Institutes for Translational Medicine, Key Laboratory of Stem Cells and Medical Biomaterials of Jiangsu Province, Soochow University Suzhou Medical College, Suzhou, Jiangsu 215123, China
| | - Eleonora Candi
- Department of Experimental Medicine, TOR, University of Rome Tor Vergata, 00133 Rome, Italy
| | - Gerry Melino
- Department of Experimental Medicine, TOR, University of Rome Tor Vergata, 00133 Rome, Italy
| | - Ying Wang
- CAS Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Yufang Shi
- The First Affiliated Hospital of Soochow University, State Key Laboratory of Radiation Medicine and Protection, Institutes for Translational Medicine, Key Laboratory of Stem Cells and Medical Biomaterials of Jiangsu Province, Soochow University Suzhou Medical College, Suzhou, Jiangsu 215123, China; Department of Experimental Medicine, TOR, University of Rome Tor Vergata, 00133 Rome, Italy.
| | - Changshun Shao
- The First Affiliated Hospital of Soochow University, State Key Laboratory of Radiation Medicine and Protection, Institutes for Translational Medicine, Key Laboratory of Stem Cells and Medical Biomaterials of Jiangsu Province, Soochow University Suzhou Medical College, Suzhou, Jiangsu 215123, China.
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Feng C, Zhang H, Wang P, Zhang L, Liu X, Yan G, Yan Y, Yang J, Liu J, Tan F, Wang X, Zeng Q. Oroxylin A suppress LL-37 generated rosacea-like skin inflammation through the modulation of SIRT3- SOD2-NF-κB signaling pathway. Int Immunopharmacol 2024; 129:111636. [PMID: 38364746 DOI: 10.1016/j.intimp.2024.111636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Revised: 01/28/2024] [Accepted: 01/30/2024] [Indexed: 02/18/2024]
Abstract
Rosacea is a long-term inflammatory skin disease associated with the dysfunction of vascular and immunological systems. Treatment options for rosacea are difficult to implement. Oroxylin A(OA), a traditional Chinese medicine, has anti-inflammation effects in a variety of inflammatory diseases. However, it is not known that whether OA exerts protective effects against LL-37-induced rosacea. In this study, bioinformatics analyses showed that the mechanisms of rosacea and the pharmacological targets of OA were highly overlapped. Subsequently, it was shown that the administration of OA resulted in a notable amelioration of rosacea-like skin lesions, as evidenced by a reduction in immune cell infiltration, modulation of cytokine production, and inhibition of angiogenesis. Plus, it was shown that OA effectively suppressed the generation of ROS generated by LL-37, as well as the subsequent activation of NF-κB signaling pathway. To explore further, we found that OA inhibited LL-37-induced ROS production via SIRT3-SOD2 signaling pathway in keratinocytes. Based on the aforementioned evidence, it can be inferred that OA exhibits a mitigating effect on the inflammatory response in rosacea by modulating the SIRT3-SOD2-NF-κB signaling pathway.
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Affiliation(s)
- Chunmei Feng
- Shanghai Skin Disease Clinical College, The Fifth Clinical Medical College, Anhui Medical University, Shanghai Skin Disease Hospital, Shanghai 200443, China; Institute of Photomedicine, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai 200443, China
| | - Haiyan Zhang
- Shanghai Skin Disease Clinical College, The Fifth Clinical Medical College, Anhui Medical University, Shanghai Skin Disease Hospital, Shanghai 200443, China; Institute of Photomedicine, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai 200443, China
| | - Peiru Wang
- Shanghai Skin Disease Clinical College, The Fifth Clinical Medical College, Anhui Medical University, Shanghai Skin Disease Hospital, Shanghai 200443, China; Institute of Photomedicine, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai 200443, China
| | - Linglin Zhang
- Shanghai Skin Disease Clinical College, The Fifth Clinical Medical College, Anhui Medical University, Shanghai Skin Disease Hospital, Shanghai 200443, China; Institute of Photomedicine, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai 200443, China
| | - Xiaojing Liu
- Shanghai Skin Disease Clinical College, The Fifth Clinical Medical College, Anhui Medical University, Shanghai Skin Disease Hospital, Shanghai 200443, China; Institute of Photomedicine, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai 200443, China
| | - Guorong Yan
- Shanghai Skin Disease Clinical College, The Fifth Clinical Medical College, Anhui Medical University, Shanghai Skin Disease Hospital, Shanghai 200443, China; Institute of Photomedicine, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai 200443, China
| | - Yu Yan
- Shanghai Skin Disease Clinical College, The Fifth Clinical Medical College, Anhui Medical University, Shanghai Skin Disease Hospital, Shanghai 200443, China; Institute of Photomedicine, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai 200443, China
| | - Jin Yang
- Shanghai Skin Disease Clinical College, The Fifth Clinical Medical College, Anhui Medical University, Shanghai Skin Disease Hospital, Shanghai 200443, China; Institute of Photomedicine, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai 200443, China
| | - Jia Liu
- Shanghai Skin Disease Clinical College, The Fifth Clinical Medical College, Anhui Medical University, Shanghai Skin Disease Hospital, Shanghai 200443, China; Institute of Photomedicine, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai 200443, China
| | - Fei Tan
- Shanghai Skin Disease Clinical College, The Fifth Clinical Medical College, Anhui Medical University, Shanghai Skin Disease Hospital, Shanghai 200443, China; Institute of Photomedicine, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai 200443, China.
| | - Xiuli Wang
- Shanghai Skin Disease Clinical College, The Fifth Clinical Medical College, Anhui Medical University, Shanghai Skin Disease Hospital, Shanghai 200443, China; Institute of Photomedicine, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai 200443, China.
| | - Qingyu Zeng
- Shanghai Skin Disease Clinical College, The Fifth Clinical Medical College, Anhui Medical University, Shanghai Skin Disease Hospital, Shanghai 200443, China; Institute of Photomedicine, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai 200443, China.
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Abd-Elkareem M, Khormi MA, Mohamed RH, Ali F, Hassan MS. Histological, immunohistochemical and serological investigations of the ovary during follicular phase of estrous cycle in Saidi sheep. BMC Vet Res 2024; 20:98. [PMID: 38461282 PMCID: PMC10924360 DOI: 10.1186/s12917-024-03933-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Accepted: 02/11/2024] [Indexed: 03/11/2024] Open
Abstract
BACKGROUND Saidi sheep are the most abundant ruminant livestock species in Upper Egypt, especially in the Assiut governorate. Sheep are one of the most abundant animals raised for food in Egypt. They can convert low-quality roughages into meat and milk in addition to producing fiber and hides therefore; great opportunity exists to enhance their reproduction. Saidi breed is poorly known in terms of reproduction. So this work was done to give more information on some hormonal, oxidative, and blood metabolites parameters in addition to histological, histochemical and immunohistochemical investigations of the ovary during follicular phase of estrous cycle. The present study was conducted on 25 healthy Saidi ewes for serum analysis and 10 healthy ewes for histological assessment aged 2 to 5 years and weighted (38.5 ± 2.03 kg). RESULTS The follicular phase of estrous cycle in Saidi sheep was characterized by the presence of ovarian follicles in different stages of development and atresia in addition to regressed corpus luteum. Interestingly, apoptosis and tissue oxidative markers play a crucial role in follicular and corpus luteum regression. The most prominent features of the follicular phase were the presence of mature antral (Graafian) and preovulatory follicles as well as increased level of some blood metabolites and oxidative markers. Here we give a new schematic sequence of ovarian follicles in Saidi sheep and describing the features of different types. We also clarified that these histological pictures of the ovary was influenced by hormonal, oxidative and blood metabolites factors that characterizes the follicular phase of estrous cycle in Saidi sheep. CONCLUSION This work helps to understanding the reproduction in Saidi sheep which assist in improving the reproductive outcome of this breed of sheep. These findings are increasingly important for implementation of a genetic improvement program and utilizing the advanced reproductive techniques as estrous synchronization, artificial insemination and embryo transfer.
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Affiliation(s)
- Mahmoud Abd-Elkareem
- Department of Cell and Tissues, Faculty of Veterinary Medicine, Assiut University, Assiut, 71526, Egypt.
| | - M A Khormi
- Department of Biology, College of Science, Jazan University, P.O. Box. 114, Jazan, 45142, Kingdom of Saudi Arabia
| | - Ragab Hassan Mohamed
- Theriogenology Department, Faculty of Veterinary Medicine, Aswan University, Aswan, Egypt
| | - Fatma Ali
- Physiology Department, Faculty of Veterinary Medicine, Aswan University, Aswan, Egypt
| | - Mervat S Hassan
- Theriogenology Department, Faculty of Veterinary Medicine, New-Valley University, New Valley, 725211, Egypt
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Li S, Cao C, Huang Z, Tang D, Chen J, Wang A, He Q. SOD2 confers anlotinib resistance via regulation of mitochondrial damage in OSCC. Oral Dis 2024; 30:281-291. [PMID: 36229195 DOI: 10.1111/odi.14404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 09/22/2022] [Accepted: 10/03/2022] [Indexed: 11/29/2022]
Abstract
OBJECTIVE Previous studies had revealed that anlotinib had outstanding anti-tumor efficacy on oral squamous cell carcinoma. However, the underlying mechanism is still unclear. MATERIALS AND METHODS Anlotinib resistant OSCC cells were established and analyzed by RNA-sequencing. The correlations between SOD2 expression and anlotinib resistance were investigated in OSCC cells and PDX models. Functional assays were performed to verify the SOD2 expression and anlotinib resistance in OSCC cells. RESULTS Anlotinib resistant genes were enriched in the biological processes of mitochondrion organization and the gene pathway of reactive oxygen species. SOD2 expression level was positively correlated with the resistance of anlotinib in OSCC cells and PDX models. Higher SOD2 expression of OSCC cells was more resistant to anlotinib. Anlotinib induced ROS generation, apoptosis and mitochondrial damage in OSCC cells, which can be enhanced by SOD2 knockdown and decreased by SOD2 overexpression. Mitochondrial damage was identified as swelling and cristae disappearance morphology under TEM, decreased mitochondrial membrane potential and lower MFN2 expression. CONCLUSIONS SOD2 may be capable of protecting mitochondria by downregulating ROS generation, which contributes to the resistance of anlotinib in OSCC cells. SOD2 can be utilized as a potential therapeutic target to improve the anti-cancer efficacy of anlotinib in OSCC.
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Affiliation(s)
- Shuai Li
- Department of Oral and Maxillofacial Surgery, the First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
- Department of Oral and Maxillofacial Surgery, College of Stomatology, Guangxi Medical University, Nanning, China
| | - Congyuan Cao
- Department of Oral and Maxillofacial Surgery, the First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Zhexun Huang
- Center of Oral Implantology, Stomatological Hospital, Southern Medical University, Guangzhou, China
| | - Dongxiao Tang
- Department of Oral and Maxillofacial Surgery, the First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
- Department of Stomatology, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Jie Chen
- Department of Oral and Maxillofacial Surgery, the First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Anxun Wang
- Department of Oral and Maxillofacial Surgery, the First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Qianting He
- Department of Oral and Maxillofacial Surgery, the First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
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Osei D, Baumgart-Vogt E, Ahlemeyer B, Herden C. Tumor Necrosis Factor-α Receptor 1 Mediates Borna Disease Virus 1-Induced Changes in Peroxisomal and Mitochondrial Dynamics in Neurons. Int J Mol Sci 2024; 25:1849. [PMID: 38339126 PMCID: PMC10855776 DOI: 10.3390/ijms25031849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Revised: 01/28/2024] [Accepted: 02/01/2024] [Indexed: 02/12/2024] Open
Abstract
Borna disease virus 1 (BoDV1) causes a persistent infection in the mammalian brain. Peroxisomes and mitochondria play essential roles in the cellular antiviral immune response, but the effect of BoDV1 infection on peroxisomal and mitochondrial dynamics and their respective antioxidant capacities is still not clear. Using different mouse lines-i.e., tumor necrosis factor-α transgenic (TNFTg; to pro-inflammatory status), TNF receptor-1 knockout (TNFR1ko), and TNFR2ko mice in comparison to wild-type (Wt) mice-we analyzed the abundances of both organelles and their main antioxidant enzymes, catalase and superoxide dismutase 2 (SOD2), in neurons of the hippocampal, cerebral, and cerebellar cortices. In TNFTg mice, a strong increase in mitochondrial (6.9-fold) and SOD2 (12.1-fold) abundances was detected; meanwhile, peroxisomal abundance increased slightly (1.5-fold), but that of catalase decreased (2.9-fold). After BoDV1 infection, a strong decrease in mitochondrial (2.1-6.5-fold), SOD2 (2.7-9.1-fold), and catalase (2.7-10.3-fold) abundances, but a slight increase in peroxisomes (1.3-1.6-fold), were detected in Wt and TNFR2ko mice, whereas no changes occurred in TNFR1ko mice. Our data suggest that the TNF system plays a crucial role in the biogenesis of both subcellular organelles. Moreover, TNFR1 signaling mediated the changes in peroxisomal and mitochondrial dynamics after BoDV1 infection, highlighting new mechanisms by which BoDV1 may achieve immune evasion and viral persistence.
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Affiliation(s)
- Dominic Osei
- Institute for Anatomy and Cell Biology, Justus Liebig University Giessen, 35392 Giessen, Germany; (D.O.); (E.B.-V.)
- Institute of Veterinary Pathology, Justus Liebig University Giessen, 35392 Giessen, Germany
| | - Eveline Baumgart-Vogt
- Institute for Anatomy and Cell Biology, Justus Liebig University Giessen, 35392 Giessen, Germany; (D.O.); (E.B.-V.)
| | - Barbara Ahlemeyer
- Institute for Anatomy and Cell Biology, Justus Liebig University Giessen, 35392 Giessen, Germany; (D.O.); (E.B.-V.)
| | - Christiane Herden
- Institute of Veterinary Pathology, Justus Liebig University Giessen, 35392 Giessen, Germany
- Center for Mind, Brain and Behavior, Justus Liebig University Giessen, 35392 Giessen, Germany
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Díaz-Jara E, Pereyra K, Vicencio S, Olesen MA, Schwarz KG, Toledo C, Díaz HS, Quintanilla RA, Del Rio R. Superoxide dismutase 2 deficiency is associated with enhanced central chemoreception in mice: Implications for breathing regulation. Redox Biol 2024; 69:102992. [PMID: 38142585 PMCID: PMC10788617 DOI: 10.1016/j.redox.2023.102992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Accepted: 12/07/2023] [Indexed: 12/26/2023] Open
Abstract
AIMS In mammals, central chemoreception plays a crucial role in the regulation of breathing function in both health and disease conditions. Recently, a correlation between high levels of superoxide anion (O2.-) in the Retrotrapezoid nucleus (RTN), a main brain chemoreceptor area, and enhanced central chemoreception has been found in rodents. Interestingly, deficiency in superoxide dismutase 2 (SOD2) expression, a pivotal antioxidant enzyme, has been linked to the development/progression of several diseases. Despite, the contribution of SOD2 on O2.- regulation on central chemoreceptor function is unknown. Accordingly, we sought to determine the impact of partial deletion of SOD2 expression on i) O2.-accumulation in the RTN, ii) central ventilatory chemoreflex function, and iii) disordered-breathing. Finally, we study cellular localization of SOD2 in the RTN of healthy mice. METHODS Central chemoreflex drive and breathing function were assessed in freely moving heterozygous SOD2 knockout mice (SOD2+/- mice) and age-matched control wild type (WT) mice by whole-body plethysmography. O2.- levels were determined in RTN brainstem sections and brain isolated mitochondria, while SOD2 protein expression and tissue localization were determined by immunoblot, RNAseq and immunofluorescent staining, respectively. RESULTS Our results showed that SOD2+/- mice displayed reductions in SOD2 levels and high O2.- formation and mitochondrial dysfunction within the RTN compared to WT. Additionally, SOD2+/- mice displayed a heightened ventilatory response to hypercapnia and exhibited overt signs of altered breathing patterns. Both, RNAseq analysis and immunofluorescence co-localization studies showed that SOD2 expression was confined to RTN astrocytes but not to RTN chemoreceptor neurons. Finally, we found that SOD2+/- mice displayed alterations in RTN astrocyte morphology compared to RTN astrocytes from WT mice. INNOVATION & CONCLUSION These findings provide first evidence of the role of SOD2 in the regulation of O2.- levels in the RTN and its potential contribution on the regulation of central chemoreflex function. Our results suggest that reductions in the expression of SOD2 in the brain may contribute to increase O2.- levels in the RTN being the outcome a chronic surge in central chemoreflex drive and the development/maintenance of altered breathing patterns. Overall, dysregulation of SOD2 and the resulting increase in O2.- levels in brainstem respiratory areas can disrupt normal respiratory control mechanisms and contribute to breathing dysfunction seen in certain disease conditions characterized by high oxidative stress.
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Affiliation(s)
- Esteban Díaz-Jara
- Laboratory of Cardiorespiratory Control, Pontificia Universidad Católica de Chile, Santiago, Chile.
| | - Katherine Pereyra
- Laboratory of Cardiorespiratory Control, Pontificia Universidad Católica de Chile, Santiago, Chile.
| | - Sinay Vicencio
- Laboratory of Cardiorespiratory Control, Pontificia Universidad Católica de Chile, Santiago, Chile.
| | - Margrethe A Olesen
- Laboratory of Neurodegenerative Diseases, Universidad Autónoma de Chile, Santiago, Chile.
| | - Karla G Schwarz
- Laboratory of Cardiorespiratory Control, Pontificia Universidad Católica de Chile, Santiago, Chile.
| | - Camilo Toledo
- Laboratory of Cardiorespiratory Control, Pontificia Universidad Católica de Chile, Santiago, Chile; Institute of Physiology, Universidad Austral de Chile, Valdivia, Chile.
| | - Hugo S Díaz
- Laboratory of Cardiorespiratory Control, Pontificia Universidad Católica de Chile, Santiago, Chile.
| | - Rodrigo A Quintanilla
- Laboratory of Neurodegenerative Diseases, Universidad Autónoma de Chile, Santiago, Chile.
| | - Rodrigo Del Rio
- Laboratory of Cardiorespiratory Control, Pontificia Universidad Católica de Chile, Santiago, Chile; Centro de Excelencia en Biomedicina de Magallanes (CEBIMA), Universidad de Magallanes, Punta Arenas, Chile; Department of Cell Biology and Physiology, School of Medicine, University of Kansas Medical Center, Kansas City, KS, United States.
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Li X, Zhang Z, Zhang X, Yin Y, Yuan X, You X, Wu J. Echinacoside Prevents Sepsis-Induced Myocardial Damage via Targeting SOD2. J Med Food 2024; 27:123-133. [PMID: 38100058 DOI: 10.1089/jmf.2023.k.0222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2024] Open
Abstract
Echinacoside (ECH) is a prominent naturally occurring bioactive compound with effects of alleviating myocardial damage. We aimed to explore the beneficial effects of ECH against sepsis-induced myocardial damage and elucidate the potential mechanism. Echocardiography and Masson staining demonstrated that ECH alleviates cardiac function and fibrosis in the cecal ligation and puncture (CLP) model. Transcriptome profiling and network pharmacology analysis showed that there are 51 overlapping targets between sepsis-induced myocardial damage and ECH. Subsequently, chemical carcinogenesis-reactive oxygen species (ROS) were enriched in multiple targets. Wherein, SOD2 may be the potential target of ECH on sepsis-induced myocardial damage. Polymerase chain reaction results showed that ECH administration could markedly increase the expression of SOD2 and reduce the release of ROS. Combined with injecting the inhibitor of SOD2, the beneficial effect of ECH on mortality, cardiac function, and fibrosis was eliminated, and release of ROS was increased after inhibiting SOD2. ECH significantly alleviated myocardial damage in septic mice, and the therapeutic mechanism of ECH is achieved by upregulating SOD2 which decreased the release of ROS.
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Affiliation(s)
- Xin Li
- Department of Anesthesiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai, China
- School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology (USST), Shanghai, China
| | - Zuojing Zhang
- Department of Anesthesiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Xiaoxuan Zhang
- Department of Anesthesiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai, China
- Department of Pharmacy, School of Medicine, Shanghai University, Shanghai 200444, China
| | - Yibo Yin
- Department of Anesthesiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Xinru Yuan
- Department of Anesthesiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai, China
- Department of Pharmacy, School of Medicine, Shanghai University, Shanghai 200444, China
| | - Xingji You
- Department of Pharmacy, School of Medicine, Shanghai University, Shanghai 200444, China
| | - Jingxiang Wu
- Department of Anesthesiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai, China
- School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology (USST), Shanghai, China
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Guo M, Su F, Chen Y, Su B. Methyltransferase METTL3-mediated maturation of miR-4654 facilitates high glucose-induced apoptosis and oxidative stress in lens epithelial cells via decreasing SOD2. Chem Biol Drug Des 2024; 103:e14491. [PMID: 38404215 DOI: 10.1111/cbdd.14491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 01/23/2024] [Accepted: 02/12/2024] [Indexed: 02/27/2024]
Abstract
N6-methyladenosine (m6 A) modification has been reported to have roles in modulating the development of diabetic cataract (DC). Methyltransferase-like 3 (METTL3) is a critical m6 A methyltransferase involving in m6 A modification activation. Here, we aimed to explore the action and mechanism of METTL3-mediated maturation of miR-4654 in DC progression. Human lens epithelial cells (HLECs) were exposed to high glucose (HG) to imitate DC condition in vitro. Levels of genes and proteins were tested via qRT-PCR and western blotting assays. The proliferation and apoptosis of HLECs were evaluated by cell counting kit-8, 5-ethynyl-2'-deoxyuridine (EdU), and flow cytometry assays, respectively. Oxidative stress was analyzed by detecting the contents of reactive oxygen species (ROS), superoxide dismutase (SOD) and malondialdehyde (MDA). The binding of miR-4654 and SOD2 was confirmed by dual-luciferase reporter assay. The m6 A-RNA immunoprecipitation (MeRIP) assay detected the m6 A modification profile. Thereafter, we found that miR-4654 expression was elevated in DC samples and HG-induced HLECs. MiR-4654 knockdown reversed HG-mediated apoptosis and oxidative stress in HLECs. Mechanistically, miR-4654 directly targeted SOD2, silencing of SOD2 abolished the protective effects of miR-4654 knockdown on HLECs under HG condition. In addition, METTL3 induced miR-4654 maturation through promoting pri-miR-4654 m6 A modification, thereby increasing miR-4654 content in HLECs. METTL3 was highly expressed in DC samples and HG-induced HLECs, METTL3 deficiency protected HLECs against HG-mediated apoptotic and oxidative injury via down-regulating miR-4654. In all, METTL3 induced miR-4654 maturation in a m6 A-dependent manner, which was then reduced SOD2 expression, thus promoting apoptosis and oxidative stress in HLECs, suggesting a novel path for DC therapy.
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Affiliation(s)
- Ming Guo
- Department of Ophthalmology, Jingzhou Hospital, Yangtze University, (Jingzhou Central Hospital), Jingzhou, Hubei, China
| | - Fanfan Su
- Department of Ophthalmology, Jingzhou Hospital, Yangtze University, (Jingzhou Central Hospital), Jingzhou, Hubei, China
| | - Yao Chen
- Department of Ophthalmology, Jingzhou Hospital, Yangtze University, (Jingzhou Central Hospital), Jingzhou, Hubei, China
| | - Bo Su
- Department of Pathology, School of Medicine, Yangtze University, Jingzhou, Hubei, China
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9
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Dos Santos AV, Kaul AJ, Dos Santos GT, Dal Berto M, Manfroi LM, Rizzotto G, Roehe AV, Alves RCS, Lutz A, Beck P, Alves RJV, Cruz IBM, Bica CG. The impact of the association between Val16Ala- SOD2 SNP and SOD2 immunohistochemistry expression in the prognosis of patients with esophageal cancer. Pathol Res Pract 2024; 253:154965. [PMID: 38039740 DOI: 10.1016/j.prp.2023.154965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 11/17/2023] [Accepted: 11/19/2023] [Indexed: 12/03/2023]
Abstract
INTRODUCTION Esophageal cancer is an extensive public health issue worldwide, warranting the search for biomarkers related to its risk and progression. Previous studies have indicated an association between Val16AlaSOD2 single nucleotide polymorphism in the gene encoding the enzyme superoxide dismutase 2 and esophageal cancer. However, further investigations are needed to clarify its role in disease risk and progression. OBJECTIVE To investigate the role of Val16AlaSOD2-SNP in esophageal cancer progression and in the survival of patients METHODS: Tumor samples were utilized for Val16Ala-SNP genotyping, while SOD2 expression levels in tissue were assessed using immunohistochemistry. A SOD2 Val16Ala-SNP database was used to obtain information on the genotype of healthy individuals. Risk and overall survival analyzes were performed. RESULTS The Val16Ala SNP was associated with an increased risk of esophageal cancer (RR 2.18, 95%CI 1.23-3.86), regardless of age and gender, but did not have a significant effect on patient survival. In contrast, weak SOD2 expression demonstrated a significantly associated with poor overall survival after treatment, independent of other clinicopathological variables (HR, 0.41; 95% CI, 0.22-0.79 P = 0.007). CONCLUSIONS Val16Ala SNP was positively associated with esophageal cancer, and the expression of SOD2 was an independent prognostic marker.
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Affiliation(s)
- A V Dos Santos
- Graduate Program in Pathology, Department of Basic Health Sciences, Federal University of Health Sciences of Porto Alegre (UFCSPA), Porto Alegre, Rio Grande do Sul, Brazil.
| | - A J Kaul
- Biomedice School, Federal University of Health Sciences of Porto Alegre (UFCSPA), Porto Alegre, Rio Grande do Sul, Brazil
| | - G T Dos Santos
- Graduate Program in Pathology, Department of Basic Health Sciences, Federal University of Health Sciences of Porto Alegre (UFCSPA), Porto Alegre, Rio Grande do Sul, Brazil
| | - M Dal Berto
- Graduate Program in Pathology, Department of Basic Health Sciences, Federal University of Health Sciences of Porto Alegre (UFCSPA), Porto Alegre, Rio Grande do Sul, Brazil
| | - L M Manfroi
- Medical School, Federal University of Health Sciences of Porto Alegre (UFCSPA), Porto Alegre, Rio Grande do Sul, Brazil
| | - G Rizzotto
- Laboratory of Pathology, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, Rio Grande do Sul, Brazil
| | - A V Roehe
- Graduate Program in Pathology, Department of Basic Health Sciences, Federal University of Health Sciences of Porto Alegre (UFCSPA), Porto Alegre, Rio Grande do Sul, Brazil
| | - R C S Alves
- Graduate Program in Pathology, Department of Basic Health Sciences, Federal University of Health Sciences of Porto Alegre (UFCSPA), Porto Alegre, Rio Grande do Sul, Brazil
| | - A Lutz
- Clinical Oncology Department, Hospital Santa Rita, Complexo Hospitalar Santa Casa de Misericórdia de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
| | - P Beck
- Clinical Oncology Department, Hospital Santa Rita, Complexo Hospitalar Santa Casa de Misericórdia de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
| | - R J V Alves
- Clinical Oncology Department, Hospital Santa Rita, Complexo Hospitalar Santa Casa de Misericórdia de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil; Department of Internal Medicine, Federal University of Health Sciences of Porto Alegre (UFCSPA), Porto Alegre, Rio Grande do Sul, Brazil
| | - I B M Cruz
- Biogenomics Laboratory, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil
| | - C G Bica
- Graduate Program in Pathology, Department of Basic Health Sciences, Federal University of Health Sciences of Porto Alegre (UFCSPA), Porto Alegre, Rio Grande do Sul, Brazil.
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10
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Hou Y, Lin S, Xia J, Zhang Y, Yin Y, Huang M, Xu Y, Yang W, Zhu Y. Alleviation of ischemia-reperfusion induced renal injury by chemically modified SOD2 mRNA delivered via lipid nanoparticles. Mol Ther Nucleic Acids 2023; 34:102067. [PMID: 38028193 PMCID: PMC10652142 DOI: 10.1016/j.omtn.2023.102067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Accepted: 10/24/2023] [Indexed: 12/01/2023]
Abstract
Ischemia-reperfusion injury (IRI) is a major cause of acute kidney injury, which is a serious clinical condition with no effective pharmacological treatment. Mesenchymal stem cell-derived extracellular vesicles (MSC-EVs) significantly alleviate kidney IRI; however, the underlying mechanisms and key molecules conferring renoprotection remain elusive. In this study, we characterized the protein composition of MSC-EVs using a proteomics approach and found that mitochondrial protein superoxide dismutase 2 (SOD2) was enriched in MSC-EVs. Using lipid nanoparticles (LNP), we successfully delivered chemically modified SOD2 mRNA into kidney cells and mice with kidney IRI. We demonstrated that SOD2 mRNA-LNP treatment decreased cellular reactive oxygen species (ROS) in cultured cells and ameliorated renal damage in IRI mice, as indicated by reduced levels of serum creatinine and restored tissue integrity compared with the control mRNA-LNP-injected group. Thus, the modulation of mitochondrial ROS levels through SOD2 upregulation by SOD2 mRNA-LNP delivery could be a novel therapeutic method for ischemia-reperfusion-induced acute kidney injury.
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Affiliation(s)
- Yutong Hou
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, P.R. China
| | - Sihao Lin
- Department of Urology, Jiading Branch of Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 201803, P.R. China
| | - Jia Xia
- Department of Nephrology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, P.R. China
| | - Yu Zhang
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, P.R. China
| | - Yanan Yin
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, P.R. China
| | - Masha Huang
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, P.R. China
| | - Yingjie Xu
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, P.R. China
- Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, P.R. China
- RNAcure Biopharma, Shanghai, P.R. China
- Shanghai Frontiers Science Center of Cellular Homeostasis and Human Diseases, Shanghai, P.R. China
| | - Wen Yang
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, P.R. China
- State Key Laboratory of Oncogenes and Related Genes, Shanghai, P.R. China
| | - Yingjian Zhu
- Department of Urology, Jiading Branch of Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 201803, P.R. China
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11
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Tavleeva MM, Rasova EE, Rybak AV, Belykh ES, Fefilova EA, Pnachina EM, Velegzhaninov IO. Dose-Dependent Effect of Mitochondrial Superoxide Dismutase Gene Overexpression on Radioresistance of HEK293T Cells. Int J Mol Sci 2023; 24:17315. [PMID: 38139144 PMCID: PMC10744337 DOI: 10.3390/ijms242417315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Revised: 12/04/2023] [Accepted: 12/08/2023] [Indexed: 12/24/2023] Open
Abstract
Over the last two decades, a multitude of gain-of-function studies have been conducted on genes that encode antioxidative enzymes, including one of the key enzymes, manganese superoxide dismutase (SOD2). The results of such studies are often contradictory, as they strongly depend on many factors, such as the gene overexpression level. In this study, the effect of altering the ectopic expression level of major transcript variants of the SOD2 gene on the radioresistance of HEK293T cells was investigated using CRISPRa technology. A significant increase in cell viability in comparison with the transfection control was detected in cells with moderate SOD2 overexpression after irradiation at 2 Gy, but not at 3 or 5 Gy. A further increase in the level of SOD2 ectopic expression up to 22.5-fold resulted in increased cell viability detectable only after irradiation at 5 Gy. Furthermore, a 15-20-fold increase in SOD2 expression raised the clonogenic survival of cells after irradiation at 5 Gy. Simultaneous overexpression of genes encoding SOD2 and Catalase (CAT) enhanced clonogenic cell survival after irradiation more effectively than separate overexpression of both. In conjunction with the literature data on the suppression of the procarcinogenic effects of superoxide dismutase overexpression by ectopic expression of CAT, the data presented here suggest the potential efficacy of simultaneous overexpression of SOD2 and CAT to reduce oxidative stress occurring in various pathological processes. Moreover, these results illustrate the importance of selecting the degree of SOD2 overexpression to obtain a protective effect.
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Affiliation(s)
- Marina M. Tavleeva
- Institute of Biology of Komi Scientific Centre, Ural Branch of Russian Academy of Sciences, 28b Kommunisticheskaya St., Syktyvkar 167982, Russia; (M.M.T.); (E.E.R.); (A.V.R.); (E.S.B.)
| | - Elena E. Rasova
- Institute of Biology of Komi Scientific Centre, Ural Branch of Russian Academy of Sciences, 28b Kommunisticheskaya St., Syktyvkar 167982, Russia; (M.M.T.); (E.E.R.); (A.V.R.); (E.S.B.)
| | - Anna V. Rybak
- Institute of Biology of Komi Scientific Centre, Ural Branch of Russian Academy of Sciences, 28b Kommunisticheskaya St., Syktyvkar 167982, Russia; (M.M.T.); (E.E.R.); (A.V.R.); (E.S.B.)
| | - Elena S. Belykh
- Institute of Biology of Komi Scientific Centre, Ural Branch of Russian Academy of Sciences, 28b Kommunisticheskaya St., Syktyvkar 167982, Russia; (M.M.T.); (E.E.R.); (A.V.R.); (E.S.B.)
| | - Elizaveta A. Fefilova
- Institute of Cytology, Russian Academy of Sciences, 4 Tikhoretsky Ave., St. Petersburg 194064, Russia;
| | - Elizaveta M. Pnachina
- Institute of Biology and Biomedicine, Lobachevsky State University of Nizhny Novgorod, 23 Gagarin Ave., Nizhny Novgorod 603950, Russia;
| | - Ilya O. Velegzhaninov
- Institute of Biology of Komi Scientific Centre, Ural Branch of Russian Academy of Sciences, 28b Kommunisticheskaya St., Syktyvkar 167982, Russia; (M.M.T.); (E.E.R.); (A.V.R.); (E.S.B.)
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12
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Yari A, Karam ZM, Meybodi SME, Sargazi ML, Saeidi K. CDKN2B-AS (rs2891168), SOD2 (rs4880), and PON1 (rs662) polymorphisms and susceptibility to coronary artery disease and type 2 diabetes mellitus in Iranian patients: A case-control study. Health Sci Rep 2023; 6:e1717. [PMID: 38028681 PMCID: PMC10665643 DOI: 10.1002/hsr2.1717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Revised: 08/28/2023] [Accepted: 11/02/2023] [Indexed: 12/01/2023] Open
Abstract
Background and Aims Coronary artery disease (CAD) is a devastating illness and primary cause of death worldwide that arises from a combination of genetic and environmental factors. Several large-scale studies found that 9p21.3, superoxide dismutase 2 (SOD2), and paraoxonase 1 (PON1) polymorphisms increase type 2 diabetes mellitus (T2DM) and/or coronary artery disease (CAD) risk. Our research aimed to investigate whether the SNPs of the 9p21.3 locus (rs28911698), SOD2 (rs4880), and PON1 (rs662) genes were associated with the risk of T2DM and/or CAD in the Iranian population. Methods In this case-control study four group subjects including patients with CAD non-T2DM, with CAD and T2DM, non-CAD with T2DM, and non-CAD non-T2DM were recruited to the study from 2019 to 2020. Molecular analysis was carried out by allele specific-polymerase chain reaction (AS-PCR) technique for rs4880, Taqman genotyping assay for rs2891168, and PCR followed by restriction fragment length polymorphism (PCR-RFLP) technique for rs662. Results The rs2891168 polymorphism presented an elevated risk of CAD in non-T2DM with CAD and with T2DM CAD groups compared to the non-T2DM non-CAD group with GG genotype and dominant model after adjustment (p < 0.05). G-allele in PON1 rs662 polymorphism associated with increased risk of T2DM in T2DM non-CAD, and T2DM CAD groups compared to non-T2DM non-CAD group with dominant model, GG and AG genotypes (p < 0.05). However, SOD2 rs4880 polymorphism presented no significant association with the development of diabetes or CAD. Conclusion These results provide a prime witness that rs2891168 and rs662 gene variants might have a possible increased risk of CAD and T2DM occurrence, respectively. To obtain more definitive and accurate results in this area, further research is required.
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Affiliation(s)
- Abolfazl Yari
- Cellular and Molecular Research CenterBirjand University of Medical SciencesBirjandIran
- Department of Medical Genetics, Afzalipour Faculty of MedicineKerman University of Medical SciencesKermanIran
| | - Zahra M. Karam
- Department of Medical Genetics, Afzalipour Faculty of MedicineKerman University of Medical SciencesKermanIran
- Physiology Research Center, Institute of NeuropharmacologyKerman University of Medical SciencesKermanIran
| | - Seyed M. E. Meybodi
- Yazd Cardiovascular Research Center, Non‐communicable Disease Research InstituteShahid Sadoughi University of Medical SciencesYazdIran
| | - Marzieh L. Sargazi
- Physiology Research Center, Institute of NeuropharmacologyKerman University of Medical SciencesKermanIran
| | - Kolsoum Saeidi
- Physiology Research Center, Institute of NeuropharmacologyKerman University of Medical SciencesKermanIran
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13
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Tarbashevich K, Ermlich L, Wegner J, Pfeiffer J, Raz E. The mitochondrial protein Sod2 is important for the migration, maintenance, and fitness of germ cells. Front Cell Dev Biol 2023; 11:1250643. [PMID: 37954204 PMCID: PMC10639133 DOI: 10.3389/fcell.2023.1250643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 10/16/2023] [Indexed: 11/14/2023] Open
Abstract
To maintain a range of cellular functions and to ensure cell survival, cells must control their levels of reactive oxygen species (ROS). The main source of these molecules is the mitochondrial respiration machinery, and the first line of defense against these toxic substances is the mitochondrial enzyme superoxide dismutase 2 (Sod2). Thus, investigating early expression patterns and functions of this protein is critical for understanding how an organism develops ways to protect itself against ROS and enhance tissue fitness. Here, we report on expression pattern and function of zebrafish Sod2, focusing on the role of the protein in migration and maintenance of primordial germ cells during early embryonic development. We provide evidence that Sod2 is involved in purifying selection of vertebrate germ cells, which can contribute to the fitness of the organism in the following generations.
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Affiliation(s)
- Katsiaryna Tarbashevich
- Institute of Cell Biology, Center for Molecular Biology of Inflammation (ZMBE), Muenster, Germany
| | - Laura Ermlich
- Institute of Cell Biology, Center for Molecular Biology of Inflammation (ZMBE), Muenster, Germany
| | - Julian Wegner
- Institute of Cell Biology, Center for Molecular Biology of Inflammation (ZMBE), Muenster, Germany
| | - Jana Pfeiffer
- Institute of Cell Biology, Center for Molecular Biology of Inflammation (ZMBE), Muenster, Germany
| | - Erez Raz
- Institute of Cell Biology, Center for Molecular Biology of Inflammation (ZMBE), Muenster, Germany
- Max Planck Institute for Molecular Biomedicine, Münster, Germany
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14
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Zhang X, Zhang D, Li H, Liu Z, Yang Y, Li J, Tang L, Tao J, Liu H, Shen M. Melatonin-Mediated Suppression of mtROS-JNK-FOXO1 Pathway Alleviates Hypoxia-Induced Apoptosis in Porcine Granulosa Cells. Antioxidants (Basel) 2023; 12:1881. [PMID: 37891959 PMCID: PMC10604184 DOI: 10.3390/antiox12101881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 09/28/2023] [Accepted: 10/17/2023] [Indexed: 10/29/2023] Open
Abstract
Numerous studies have established that the hypoxic conditions within ovarian follicles induce apoptosis in granulosa cells (GCs), a pivotal hallmark of follicular atresia. Melatonin (N-acetyl-5-methoxytryptamine, MT), a versatile antioxidant naturally present in follicular fluid, acts as a safeguard for maintaining GCs' survival during stress exposure. In this study, we unveil an innovative protective mechanism of melatonin against hypoxia-triggered GC apoptosis by selectively inhibiting mitochondrial ROS (mtROS) generation. Specifically, under hypoxic conditions, a gradual accumulation of mitochondrial ROS occurred, consequently activating the JNK-FOXO1 pathway, and driving GCs toward apoptosis. The blocking of JNK or FOXO1 diminished hypoxia-induced GC apoptosis, but this effect was nullified in the presence of GSH, indicating that mtROS instigates apoptosis through the JNK-FOXO1 pathway. Consistent with this, hypoxic GCs treated with melatonin exhibited decreased levels of mtROS, reduced JNK-FOXO1 activation, and mitigated apoptosis. However, the protective capabilities of melatonin were attenuated upon inhibiting its receptor MTNR1B, accompanied by the decreased expression of antioxidant genes. Notably, SOD2, a key mitochondrial antioxidant gene modulated by the melatonin-MTNR1B axis, effectively inhibited the activation of mtROS-JNK-FOXO1 and subsequent apoptosis, whereas SOD2 knockdown abrogated the protective role of melatonin in hypoxic GCs. In conclusion, our study elucidates that melatonin, through MTNR1B activation, fosters SOD2 expression, effectively quelling mtROS-JNK-FOXO1-mediated apoptosis in follicular GCs under hypoxic stress.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Ming Shen
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China; (X.Z.); (D.Z.); (H.L.); (Z.L.); (Y.Y.); (J.L.); (L.T.); (J.T.); (H.L.)
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15
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Mercado-Gómez OF, Arriaga-Ávila VS, Vega-García A, Orozco-Suarez S, Pérez-Koldenkova V, Camarillo-Sánchez JJ, Álvarez-Herrera M, Guevara-Guzmán R. Daytime-Restricted Feeding Ameliorates Oxidative Stress by Increasing NRF2 Transcriptional Factor in the Rat Hippocampus in the Pilocarpine-Induced Acute Seizure Model. Brain Sci 2023; 13:1442. [PMID: 37891811 PMCID: PMC10605835 DOI: 10.3390/brainsci13101442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 10/05/2023] [Accepted: 10/06/2023] [Indexed: 10/29/2023] Open
Abstract
Seizure-mediated oxidative stress is a crucial mechanism in the pathophysiology of epilepsy. This study evaluated the antioxidant effects of daytime-restricted feeding (DRF) and the role of the Nrf2 signaling pathway in a lithium-pilocarpine model seizure model that induces status epilepticus (SE). We performed a lipoperoxidation assay and dihydroethidium fluorescence to measure oxidative stress markers in the hippocampus (malondialdehyde and reactive oxygen species). The protein content of Nrf2 and its downstream protein SOD2 was evaluated using Western blotting. The cellular distribution of the Nrf2 and SOD2 proteins in the pyramidal cell layer of both the CA1 and CA3 hippocampal subfields and astrocytes (GFAP marker) were quantified using immunofluorescence and immunohistochemistry, respectively. Our results indicate that DRF reduced the malondialdehyde levels and the production of reactive oxygen species. Furthermore, a significant increase in Nrf2 and SOD2 protein content was observed in animals subjected to restrictive diet. In addition, DRF increased the relative intensity of the Nrf2 fluorescence in the perinuclear and nuclear compartments of pyramidal neurons in the CA1 subfield. Nrf2 immunoreactivity and the astrocyte marker GFAP also increased their colocalization under DRF conditions. Additionally, SOD2 immunoreactivity was increased in CA1 pyramidal neurons but not in the CA3 region. Our findings suggest that DRF partially prevents oxidative stress by increasing the Nrf2 transcriptional factor and the SOD2 enzyme during the development of SE.
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Affiliation(s)
- Octavio Fabián Mercado-Gómez
- Department of Physiology, School of Medicine, National Autonomous University of Mexico, Mexico City 04510, Mexico; (O.F.M.-G.); (V.S.A.-Á.); (A.V.-G.); (J.J.C.-S.); (M.Á.-H.)
| | - Virginia Selene Arriaga-Ávila
- Department of Physiology, School of Medicine, National Autonomous University of Mexico, Mexico City 04510, Mexico; (O.F.M.-G.); (V.S.A.-Á.); (A.V.-G.); (J.J.C.-S.); (M.Á.-H.)
| | - Angélica Vega-García
- Department of Physiology, School of Medicine, National Autonomous University of Mexico, Mexico City 04510, Mexico; (O.F.M.-G.); (V.S.A.-Á.); (A.V.-G.); (J.J.C.-S.); (M.Á.-H.)
| | - Sandra Orozco-Suarez
- Medical Research Unit in Neurological Diseases, National Medical Center XXI, Mexico City 06720, Mexico;
| | - Vadim Pérez-Koldenkova
- National Advanced Microscopy Laboratory, National Medical Center XXI, Mexico City 06720, Mexico
| | - Juan José Camarillo-Sánchez
- Department of Physiology, School of Medicine, National Autonomous University of Mexico, Mexico City 04510, Mexico; (O.F.M.-G.); (V.S.A.-Á.); (A.V.-G.); (J.J.C.-S.); (M.Á.-H.)
| | - Marcelino Álvarez-Herrera
- Department of Physiology, School of Medicine, National Autonomous University of Mexico, Mexico City 04510, Mexico; (O.F.M.-G.); (V.S.A.-Á.); (A.V.-G.); (J.J.C.-S.); (M.Á.-H.)
| | - Rosalinda Guevara-Guzmán
- Department of Physiology, School of Medicine, National Autonomous University of Mexico, Mexico City 04510, Mexico; (O.F.M.-G.); (V.S.A.-Á.); (A.V.-G.); (J.J.C.-S.); (M.Á.-H.)
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16
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Rabinovitz R, Eynan M. CNS-oxygen toxicity and blood glucose levels in MnSOD enzyme knockdown mice. Respir Physiol Neurobiol 2023; 316:104122. [PMID: 37481014 DOI: 10.1016/j.resp.2023.104122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Revised: 07/04/2023] [Accepted: 07/18/2023] [Indexed: 07/24/2023]
Abstract
Many studies have been conducted in the search for the mechanism underlying CNS-oxygen toxicity (OT), which may be fatal when diving with a closed-circuit apparatus. We investigated the influence of hyperbaric oxygen (HBO) on blood glucose level (BGL) in Mn-superoxide dismutase (SOD2) knockdown mice regarding CNS-OT in particular under stress conditions such as hypoglycemia or hyperglycemia. Two groups of mice were used: SOD2 knockdown (Heterozygous, HET) mice and their WT family littermates. Animals were exposed to HBO from 2 up to 5 atmosphere absolute (ATA). Blood samples were drawn before and after each exposure for measurement of BGL. The mice were sacrificed following the final exposure, which was at 5 ATA. We used RT-PCR and Western blot to measure levels of glucose transporter 1 (GLUT1) and hypoxia inducible factor (HIF)1a in the cortex and hippocampus. In the hypoglycemic condition, the HET mice were more sensitive to oxidative stress than the WT. In addition, following exposure to sub-toxic HBO, which does not induce CNS-OT, BGL were higher in the HET mice compared with the WT. The expression of mRNA of GLUT1 and HIF-1a decreased in the hippocampus in the HET mice, while the protein level decreased in the HET and WT following HBO exposure. The results suggest that the higher BGL following HBO exposure especially at SOD2 HET mice is in part due to reduction in GLUT1 as a consequence of lower HIF-1a expression. This may add part to the puzzle of the understanding the mechanism leading to CNS-OT.
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Affiliation(s)
- Ricarina Rabinovitz
- Israel Naval Medical Institute, Israel Defense Forces Medical Corps, Haifa, Israel
| | - Mirit Eynan
- Israel Naval Medical Institute, Israel Defense Forces Medical Corps, Haifa, Israel.
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17
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Liu H, Lyu H, Jiang X, Wang L, Li H, Wei X, Li L, Zhu J, Fan Y, Wang K. Superoxide dismutase 2 as a predictor in patients with hepatitis B virus-associated acute-on-chronic liver failure. Clin Exp Med 2023; 23:2181-2192. [PMID: 36598672 DOI: 10.1007/s10238-022-00979-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Accepted: 12/11/2022] [Indexed: 01/05/2023]
Abstract
The prognosis of hepatitis B virus-associated acute-on-chronic liver failure (HBV-ACLF) is critical in clinical management. We aimed to assess the prognostic efficacy of superoxide dismutase 2 (SOD2) for 90-day mortality in HBV-ACLF patients. The expression patterns of SOD2 in peripheral blood mononuclear cells (PBMCs) were examined in a derivation set (n = 82) by quantitative real-time polymerase chain reaction (RT-qPCR). The results were further validated in a validation set (n = 35). The expression levels of SOD2 were significantly decreased in the derivation set compared to those with chronic hepatitis B (CHB) or the healthy controls (HCs) (P < 0.001). In HBV-ACLF patients, SOD2 levels were negatively correlated with serum total bilirubin (TBIL) (rs = - 0.43, P < 0.001) and model for end-stage liver disease (MELD) scores (rs = - 0.22, P = 0.047), but positively correlated with alkaline phosphatase (AKP) (rs = 0.23, P = 0.034). SOD2 was identified as an independent risk factor for 90-day mortality in HBV-ACLF patients (hazard ratio: 0.124, 95% confidence interval: 0.059-0.261, P < 0.001). SOD2 yielded a larger area under the receiver operating characteristic curve (AUROC) than the MELD score in predicting 90-day mortality (0.914 vs. 0.712, P < 0.001). Kaplan-Meier analysis revealed a favorable overall survival (OS) for the SOD2 high expression group compared with the SOD2 low expression group in both the derivation and validation sets (P < 0.001). SOD2 has promising potential as a predictor of 90-day mortality in patients with HBV-ACLF.
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Affiliation(s)
- Huihui Liu
- Department of Hepatology, Qilu Hospital of Shandong University, Wenhuaxi Road 107#, Jinan, 250012, Shandong, China
| | - Hui Lyu
- Department of Severe Liver Disease, Shandong Public Health Clinical Center of Shandong University, Jinan, 250000, Shandong, China
| | - Xuemei Jiang
- Department of Hepatology, Shandong Public Health Clinical Center of Shandong University, Jinan, 250000, Shandong, China
| | - Li Wang
- Central Laboratory, Qishan Hospital of Yantai, Yantai, 264000, Shandong, China
| | - Haiming Li
- Department of Hepatology, Qilu Hospital of Shandong University, Wenhuaxi Road 107#, Jinan, 250012, Shandong, China
| | - Xuefei Wei
- Department of Hepatology, Qilu Hospital of Shandong University, Wenhuaxi Road 107#, Jinan, 250012, Shandong, China
| | - Linlin Li
- Department of Hepatology, Qilu Hospital of Shandong University, Wenhuaxi Road 107#, Jinan, 250012, Shandong, China
| | - Jinyu Zhu
- Department of Hepatology, Qilu Hospital of Shandong University, Wenhuaxi Road 107#, Jinan, 250012, Shandong, China
| | - Yuchen Fan
- Department of Hepatology, Qilu Hospital of Shandong University, Wenhuaxi Road 107#, Jinan, 250012, Shandong, China
- Shenzhen Research Institute of Shandong University, Shenzhen, 518000, China
- Institute of Hepatology, Shandong University, Jinan, 250000, Shandong, China
| | - Kai Wang
- Department of Hepatology, Qilu Hospital of Shandong University, Wenhuaxi Road 107#, Jinan, 250012, Shandong, China.
- Shenzhen Research Institute of Shandong University, Shenzhen, 518000, China.
- Institute of Hepatology, Shandong University, Jinan, 250000, Shandong, China.
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Wang Y, Shi P, Zhao C, Shi J, Qi Z, Xu S, Wang X, Su N, Gao Z, Zhu J, He M. Identification of the regulatory network and potential markers for type 2 diabetes mellitus related to internal exposure to metals in Chinese adults. Environ Geochem Health 2023; 45:6889-6902. [PMID: 36811699 DOI: 10.1007/s10653-023-01504-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Accepted: 02/09/2023] [Indexed: 06/18/2023]
Abstract
People intake metals from their environment. This study investigated type 2 diabetes mellitus (T2DM) related to internal exposure to metals and attempted to identify possible biomarkers. A total of 734 Chinese adults were enrolled, and urinary levels of ten metals were measured. Multinomial logistic regression model was used to assess the association between metals and impaired fasting glucose (IFG) and T2DM. Gene ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG), and protein-protein interaction were used to explore the pathogenesis of T2DM related to metals. After adjustment, lead (Pb) was positively associated with IFG (odds ratio [OR] 1.31, 95% confidence interval [CI] 1.06-1.61) and T2DM (OR 1.41, 95% CI 1.01-1.98), but cobalt was negatively associated with IFG (OR 0.57, 95% CI 0.34-0.95). Transcriptome analysis showed 69 target genes involved in the Pb-target network of T2DM. GO enrichment indicated that the target genes are enriched mainly in the biological process category. KEGG enrichment indicated that Pb exposure leads to non-alcoholic fatty liver disease, lipid and atherosclerosis, and insulin resistance. Moreover, there is alteration of four key pathways, and six algorithms were used to identify 12 possible genes in T2DM related to Pb. SOD2 and ICAM1 show strong similarity in expression, suggesting a functional correlation between these key genes. This study reveals that SOD2 and ICAM1 may be potential targets of Pb exposure-induced T2DM and provides novel insight into the biological effects and underlying mechanism of T2DM related to internal exposure to metals in the Chinese population.
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Affiliation(s)
- Yue Wang
- Key Laboratory of Environmental Health Damage Research and Assessment, Department of Environmental Health, School of Public Health, China Medical University, Shenyang, 110122, Liaoning, China
| | - Peng Shi
- Key Laboratory of Environmental Health Damage Research and Assessment, Department of Environmental Health, School of Public Health, China Medical University, Shenyang, 110122, Liaoning, China
| | - Chenkai Zhao
- Key Laboratory of Environmental Health Damage Research and Assessment, Department of Environmental Health, School of Public Health, China Medical University, Shenyang, 110122, Liaoning, China
| | - Jingang Shi
- Key Laboratory of Environmental Health Damage Research and Assessment, Department of Environmental Health, School of Public Health, China Medical University, Shenyang, 110122, Liaoning, China
| | - Zhipeng Qi
- Key Laboratory of Environmental Health Damage Research and Assessment, Department of Environmental Health, School of Public Health, China Medical University, Shenyang, 110122, Liaoning, China
| | - Senhao Xu
- Key Laboratory of Environmental Health Damage Research and Assessment, Department of Environmental Health, School of Public Health, China Medical University, Shenyang, 110122, Liaoning, China
| | - Xue Wang
- Key Laboratory of Environmental Health Damage Research and Assessment, Department of Environmental Health, School of Public Health, China Medical University, Shenyang, 110122, Liaoning, China
| | - Ni Su
- Key Laboratory of Environmental Health Damage Research and Assessment, Department of Environmental Health, School of Public Health, China Medical University, Shenyang, 110122, Liaoning, China
| | - Zijian Gao
- Key Laboratory of Environmental Health Damage Research and Assessment, Department of Environmental Health, School of Public Health, China Medical University, Shenyang, 110122, Liaoning, China
| | - Jinghai Zhu
- Key Laboratory of Environmental Health Damage Research and Assessment, Department of Environmental Health, School of Public Health, China Medical University, Shenyang, 110122, Liaoning, China
| | - Miao He
- Key Laboratory of Environmental Health Damage Research and Assessment, Department of Environmental Health, School of Public Health, China Medical University, Shenyang, 110122, Liaoning, China.
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Asadi S, Abkar M, Zamanzadeh Z, Taghipour Kamalabad S, Sedghi M, Yousefnia S. Association of SOD2 rs2758339, rs5746136 and rs2842980 polymorphisms with increased risk of breast cancer: a haplotype-based case-control study. Genes Genomics 2023; 45:1165-1178. [PMID: 37253908 DOI: 10.1007/s13258-023-01399-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 05/11/2023] [Indexed: 06/01/2023]
Abstract
BACKGROUND A growing body of evidence indicates that oxidative stress, high levels of reactive oxygen species (ROS), is implicated in the pathogenesis of breast cancer (BC). Superoxide dismutase (SOD2), a mitochondria-resident antioxidant enzyme, protects cells from ROS by catalytically converting the superoxide radicals into less reactive species. OBJECTIVE We aimed to investigate whether SOD2 rs2758339, rs5746136 and rs2842980 polymorphisms are associated with increased risk of BC. METHODS A total of 100 patients with BC and 100 healthy controls were enrolled in the study. We used polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) assay for genotyping the SOD2 single-nucleotide polymorphisms (SNPs). Under co-dominant, dominant and recessive inheritance models, the genotypic and allelic associations of SOD2 SNPs with susceptibility to BC were evaluated using logistic regression analysis. The haplotype analysis was performed on the SOD2 SNPs to determine their combined effect on the BC risk. RESULTS We found that SOD2 rs5746136 was significantly associated with decreased risk of developing BC in co-dominant and dominant inheritance models (P < 0.05). The SOD2 rs5746136 T allele confers an apparent protective effect against breast carcinogenesis (OR: 1.956; 95% CI 1.312-2.916; P < 0.0001). The SOD2 rs5746136/rs2842980 combined genotypes (CT/AA, CT/AT and TT/AA) were significantly more frequent in healthy subjects compared to BC patients (P < 0.05). The CTA and ACA haplotypes (rs2758339, rs5746136, rs2842980) were found to be a protective and a risk factor for BC, respectively. CONCLUSION These data strongly suggest that SOD2 rs5746136 was significantly associated with reduced risk of BC, indicating its protective role in BC development.
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Affiliation(s)
- Sara Asadi
- Department of Biotechnology, Faculty of Biological Sciences and Technology, Shahid Ashrafi Esfahani University, Isfahan, Iran
| | - Morteza Abkar
- Department of Biotechnology, Faculty of Biological Sciences and Technology, Shahid Ashrafi Esfahani University, Isfahan, Iran
| | - Zahra Zamanzadeh
- Department of Biotechnology, Faculty of Biological Sciences and Technology, Shahid Ashrafi Esfahani University, Isfahan, Iran
| | - Setareh Taghipour Kamalabad
- Department of Biotechnology, Faculty of Biological Sciences and Technology, Shahid Ashrafi Esfahani University, Isfahan, Iran
| | - Maryam Sedghi
- Department of Biotechnology, Faculty of Biological Sciences and Technology, Shahid Ashrafi Esfahani University, Isfahan, Iran
- Medical Genetics Laboratory, Alzahra University Hospital, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Saghar Yousefnia
- Department of Biotechnology, Faculty of Biological Sciences and Technology, Shahid Ashrafi Esfahani University, Isfahan, Iran.
- Department of Cell and Molecular Biology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, Iran.
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Tsesmelis K, Maity‐Kumar G, Croner D, Sprissler J, Tsesmelis M, Hein T, Baumann B, Wirth T. Accelerated aging in mice with astrocytic redox imbalance as a consequence of SOD2 deletion. Aging Cell 2023; 22:e13911. [PMID: 37609868 PMCID: PMC10497807 DOI: 10.1111/acel.13911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 05/08/2023] [Accepted: 05/31/2023] [Indexed: 08/24/2023] Open
Abstract
Aging of the central nervous system (CNS) leads to motoric and cognitive decline and increases the probability for neurodegenerative disease development. Astrocytes fulfill central homeostatic functions in the CNS including regulation of immune responses and metabolic support of neurons and oligodendrocytes. In this study, we investigated the effect of redox imbalance in astrocytes by using a conditional astrocyte-specific SOD2-deficient mouse model (SOD2ako ) and analyzed these animals at different stages of their life. SOD2ako mice did not exhibit any overt phenotype within the first postnatal weeks. However, already as young adults, they displayed progressive motoric impairments. Moreover, as these mice grew older, they exhibited signs of a progeroid phenotype and early death. Histological analysis in moribund SOD2ako mice revealed the presence of age-related brain alterations, neuroinflammation, neuronal damage and myelin impairment in brain and spinal cord. Additionally, transcriptome analysis of primary astrocytes revealed that SOD2 deletion triggered a hypometabolic state and promoted polarization toward A1-neurotoxic status, possibly underlying the neuronal and myelin deficits. Conclusively, our study identifies maintenance of ROS homeostasis in astrocytes as a critical prerequisite for physiological CNS aging.
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Affiliation(s)
| | - Gandhari Maity‐Kumar
- Institute of Physiological ChemistryUniversity of UlmUlmGermany
- Institute for Diabetes and ObesityHelmholtz Diabetes Center at Helmholtz Zentrum MünchenNeuherbergGermany
| | - Dana Croner
- Institute of Physiological ChemistryUniversity of UlmUlmGermany
| | - Jasmin Sprissler
- Institute of Physiological ChemistryUniversity of UlmUlmGermany
- Department of Pediatrics and Adolescent MedicineUlm University Medical CenterUlmGermany
| | | | - Tabea Hein
- Institute of Physiological ChemistryUniversity of UlmUlmGermany
| | - Bernd Baumann
- Institute of Physiological ChemistryUniversity of UlmUlmGermany
| | - Thomas Wirth
- Institute of Physiological ChemistryUniversity of UlmUlmGermany
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Zhou D, Ran Y, Yu R, Liu G, Ran D, Liu Z. SIRT1 regulates osteoblast senescence through SOD2 acetylation and mitochondrial dysfunction in the progression of Osteoporosis caused by Cadmium exposure. Chem Biol Interact 2023; 382:110632. [PMID: 37451666 DOI: 10.1016/j.cbi.2023.110632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Revised: 07/05/2023] [Accepted: 07/11/2023] [Indexed: 07/18/2023]
Abstract
Environmental Cadmium (Cd) is a toxicant with widespread exposure, documented adverse effects on bone homeostasis, and makes the onset of osteoporosis (OP), one of the age-related chronic diseases an enormous burden to modern societies worldwide. Aging is the largest risk factor for a multitude of age-related diseases and osteoblasts senescence reduces bone formation and is a key factor for osteoporosis. Despite anti-aging molecules the nuclear silent information regulator of transcription 1 (SIRT1) actions in chondrocytes and bone cells are critical for normal skeletal development and homeostasis, much less is known about the role of SIRT1 in osteoporosis. Here, we aim to demonstrate that SIRT1 mediates osteoblasts' senescence response to OP caused by Cd. The senescent osteoblasts accumulation and their viability were analyzed after Cd exposure. To explore the effects and mechanism of SIRT1 in Cd-induced osteoblastic senescence, we generated SIRT1-overexpressed osteoblast and SIRT1 conditional overexpression in the rat femur. Meanwhile, the OP rat model was established by removing bilateral ovaries. We found decreased SIRT1 expression and senescent osteoblasts accumulation after Cd exposure. Meanwhile, Cd exposure increased P53, P16INK4a, and P21CIPI proteins level, triggered DNA damage response (DDR) through the phosphorylation of ATM and H2AX, and caused mitochondrial dysfunction by the increased acetylation of SOD2 and excessive mitophagy. SIRT1 overexpression attenuated DDR and mitochondrial dysfunction and downregulated the increase of hall makers senescence caused by Cd in osteoblasts. We found overexpression of osteoblastic SIRT1 protects against Cd-induced senescence, which is likely driven by ATM-mediated DDR and SOD2ace-mediated mitochondrial dysfunction. Our study demonstrates the mechanism of SIRT1 in mediating bone homeostasis via senescence. Further mechanistic studies using specific SIRT1 mutations elucidating how SIRT1 modulates bone cell senescence, will provide new therapeutic strategies for human osteoporosis.
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Affiliation(s)
- Dehui Zhou
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, 225009, PR China
| | - Yawei Ran
- Medical Imaging Department, The First People's Hospital of Baiyin, Gansu, 730900, PR China
| | - Rui Yu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, 225009, PR China
| | - Gang Liu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, 225009, PR China; Department of Pathology & Laboratory Medicine, Tulane University School of Medicine, New Orleans, LA, 70112, USA
| | - Di Ran
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, 225009, PR China; College of Veterinary Medicine, Southwest University, Chongqing, 400715, PR China; College of Medicine, University of Illinois at Chicago, Chicago, IL, 60607, USA.
| | - Zongping Liu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, 225009, PR China.
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Urushihara Y, Hashimoto T, Fujishima Y, Hosoi Y. AMPK/FOXO3a Pathway Increases Activity and/or Expression of ATM, DNA-PKcs, Src, EGFR, PDK1, and SOD2 and Induces Radioresistance under Nutrient Starvation. Int J Mol Sci 2023; 24:12828. [PMID: 37629008 PMCID: PMC10454868 DOI: 10.3390/ijms241612828] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 08/13/2023] [Accepted: 08/14/2023] [Indexed: 08/27/2023] Open
Abstract
Most solid tumors contain hypoxic and nutrient-deprived microenvironments. The cancer cells in these microenvironments have been reported to exhibit radioresistance. We have previously reported that nutrient starvation increases the expression and/or activity of ATM and DNA-PKcs, which are involved in the repair of DNA double-strand breaks induced by ionizing radiation. In the present study, to elucidate the molecular mechanisms underlying these phenomena, we investigated the roles of AMPK and FOXO3a, which play key roles in the cellular response to nutrient starvation. Nutrient starvation increased clonogenic cell survival after irradiation and increased the activity and/or expression of AMPKα, FOXO3a, ATM, DNA-PKcs, Src, EGFR, PDK1, and SOD2 in MDA-MB-231 cells. Knockdown of AMPKα using siRNA suppressed the activity and/or expression of FOXO3a, ATM, DNA-PKcs, Src, EGFR, PDK1, and SOD2 under nutrient starvation. Knockdown of FOXO3a using siRNA suppressed the activity and/or expression of AMPKα, ATM, DNA-PKcs, FOXO3a, Src, EGFR, PDK1, and SOD2 under nutrient starvation. Nutrient starvation decreased the incidence of apoptosis after 8 Gy irradiation. Knockdown of FOXO3a increased the incidence of apoptosis after irradiation under nutrient starvation. AMPK and FOXO3a appear to be key molecules that induce radioresistance under nutrient starvation and may serve as targets for radiosensitization.
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Affiliation(s)
- Yusuke Urushihara
- Department of Radiation Biology, School of Medicine, Tohoku University, Sendai 980-8575, Japan
- Kobe Research Lab, Oncolys BioPharma Inc., Kobe 650-0047, Japan
| | - Takuma Hashimoto
- Department of Radiation Biology, School of Medicine, Tohoku University, Sendai 980-8575, Japan
| | - Yohei Fujishima
- Department of Radiation Biology, School of Medicine, Tohoku University, Sendai 980-8575, Japan
- Department of Risk Analysis and Biodosimetry, Institute of Radiation Emergency Medicine, Hirosaki University, Hirosaki 036-8562, Japan
| | - Yoshio Hosoi
- Department of Radiation Biology, School of Medicine, Tohoku University, Sendai 980-8575, Japan
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Retamoso VR, Barbisan F, Moro GM, Maurer P, Rubio DV, dos Santos LFV, Feijóo LB, Frizzo MN, Mânica da Cruz IB, Manfredini V, Barcelos ALV, Piccoli JDCE. VDR, SOD-2, and CYP24A1 Gene Expression in Different Genotypes of BsmI SNP of the Vitamin D Receptor Gene in Individuals with Hypovitaminosis. Nutrients 2023; 15:3565. [PMID: 37630755 PMCID: PMC10459192 DOI: 10.3390/nu15163565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 08/04/2023] [Accepted: 08/11/2023] [Indexed: 08/27/2023] Open
Abstract
BACKGROUND Hypovitaminosis D is a public health problem due to its implications for various diseases. Vitamin D has numerous functions, such as modulating the metabolism of cellular tissues, and it is expressed through the vitamin D receptor (VDR) gene that may influence gene expression modulation, which plays an important role in vitamin D metabolism. OBJECTIVE To evaluate the effect of the genotypes of BsmI single nucleotide polymorphism (SNP) of the VDR gene on VDR, SOD2, and CYP24A1 gene expression in individuals with low serum vitamin D levels. METHODS This was a cross-sectional analytical study. After signing the informed consent form, individuals were invited to participate and answered a structured questionnaire with identification data. Blood was collected for biochemical analysis, and vitamin D was measured by chemiluminescence; BsmI polymorphism was determined using real-time polymerase chain reaction (PCR) assays with TaqMan allelic discrimination, and gene expression was conducted by qRT-PCR using QuantiFast SYBR® Green PCR Master Mix. Data were analyzed using the SPSS 20.0 software, and differences were considered significant at p < 0.05. RESULTS 98 individuals with vitamin D ≤ 20 ng/dL were evaluated, and the BsmI SNP of the VDR gene showed CYP24A1 overexpression and low SOD2 expression. CONCLUSION BsmI SNP of the VDR gene can modulate the expression of the genes evaluated without interfering with serum levels.
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Affiliation(s)
- Vanessa Rosa Retamoso
- Postgraduate Program in Biochemistry, Federal University of Pampa e Campus Uruguaiana, BR 472-Km 592-Mailbox 118, Uruuguaiana 97508-000, RS, Brazil; (P.M.); (D.V.R.); (L.B.F.); (V.M.); (A.L.V.B.)
| | - Fernanda Barbisan
- Pharmacy Department and Post Graduation in Gerontology, Federal University of Santa Maria (UFSM), Santa Maria 97105-900, RS, Brazil; (F.B.); (G.M.M.); (I.B.M.d.C.)
| | - Graziele Meira Moro
- Pharmacy Department and Post Graduation in Gerontology, Federal University of Santa Maria (UFSM), Santa Maria 97105-900, RS, Brazil; (F.B.); (G.M.M.); (I.B.M.d.C.)
| | - Patricia Maurer
- Postgraduate Program in Biochemistry, Federal University of Pampa e Campus Uruguaiana, BR 472-Km 592-Mailbox 118, Uruuguaiana 97508-000, RS, Brazil; (P.M.); (D.V.R.); (L.B.F.); (V.M.); (A.L.V.B.)
| | - Débora Vasquez Rubio
- Postgraduate Program in Biochemistry, Federal University of Pampa e Campus Uruguaiana, BR 472-Km 592-Mailbox 118, Uruuguaiana 97508-000, RS, Brazil; (P.M.); (D.V.R.); (L.B.F.); (V.M.); (A.L.V.B.)
| | - Lauren Flores Viera dos Santos
- Physiotherapy Course, Federal University of Pampa e Campus Uruguaiana, BR 472-Km 592-Mailbox 118, Uruguaiana 97508-000, RS, Brazil;
| | - Lyana Berro Feijóo
- Postgraduate Program in Biochemistry, Federal University of Pampa e Campus Uruguaiana, BR 472-Km 592-Mailbox 118, Uruuguaiana 97508-000, RS, Brazil; (P.M.); (D.V.R.); (L.B.F.); (V.M.); (A.L.V.B.)
| | - Matias Nunes Frizzo
- Department of Life Sciences, Northwest Regional University (Unijui), R. do Comércio, 3000-Universitário, Ijuí 98700-000, RS, Brazil;
| | - Ivana Beatrice Mânica da Cruz
- Pharmacy Department and Post Graduation in Gerontology, Federal University of Santa Maria (UFSM), Santa Maria 97105-900, RS, Brazil; (F.B.); (G.M.M.); (I.B.M.d.C.)
| | - Vanusa Manfredini
- Postgraduate Program in Biochemistry, Federal University of Pampa e Campus Uruguaiana, BR 472-Km 592-Mailbox 118, Uruuguaiana 97508-000, RS, Brazil; (P.M.); (D.V.R.); (L.B.F.); (V.M.); (A.L.V.B.)
| | - Ana Letícia Vargas Barcelos
- Postgraduate Program in Biochemistry, Federal University of Pampa e Campus Uruguaiana, BR 472-Km 592-Mailbox 118, Uruuguaiana 97508-000, RS, Brazil; (P.M.); (D.V.R.); (L.B.F.); (V.M.); (A.L.V.B.)
- Nutrition Course, Federal University of Pampa, Campus Itaqui, Road Luiz Joaquim de Sá Brito, Itaqui 97650-000, RS, Brazil
| | - Jacqueline da Costa Escobar Piccoli
- Postgraduate Program in Biochemistry, Federal University of Pampa e Campus Uruguaiana, BR 472-Km 592-Mailbox 118, Uruuguaiana 97508-000, RS, Brazil; (P.M.); (D.V.R.); (L.B.F.); (V.M.); (A.L.V.B.)
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Bastin J, Sroussi M, Nemazanyy I, Laurent-Puig P, Mouillet-Richard S, Djouadi F. Downregulation of mitochondrial complex I induces ROS production in colorectal cancer subtypes that differently controls migration. J Transl Med 2023; 21:522. [PMID: 37533102 PMCID: PMC10398918 DOI: 10.1186/s12967-023-04341-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Accepted: 07/10/2023] [Indexed: 08/04/2023] Open
Abstract
BACKGROUND Colorectal cancer (CRC) can be classified into four molecular subtypes (CMS) among which CMS1 is associated with the best prognosis, while CMS4, the mesenchymal subtype, has the worst outcome. Although mitochondria are considered to be hubs of numerous signaling pathways, the study of mitochondrial metabolism has been neglected for many years. Mitochondrial Complex I (CI) plays a dual role, both in energy and reactive oxygen species (ROS) production. However, the possible contribution of CI to tumorigenesis in cancer remains unclear. The purpose of this study was to investigate the CI under the prism of the CMS classification of CRC in ex vivo models. METHODS Biochemical dosages, bioenergetics analysis and western-blot were used to characterize CI expression, function and redox balance in LoVo and MDST8 cell lines, belonging to CMS1 and CMS4 subgroups, respectively. Cell proliferation and migration were assessed by xCELLigence technology. Overproduction or scavenging of mitochondrial ROS (mtROS) were performed to analyze the effect of mtROS on proliferation, migration, and mesenchymal markers. Focal adhesion kinase (FAK) and its activation were analyzed by immunofluorescence. We assessed the distribution of two CI scores in CRC cohorts according to CMS classification and their relevance for patient survival. RESULTS We found that CI is downregulated in CMS4 cells and is associated with elevated mtROS. We establish for the first time that in these migrating cells, mtROS production is maintained at optimal levels not only through changes in CI activity but also by inactivation/acetylation of superoxide dismutase 2 (SOD2), a major mitochondrial antioxidant enzyme. We show that promoting or scavenging mtROS both mitigate CMS4 cells' migration. Our results also point to a mtROS-mediated focal adhesion kinase (FAK) activation, which likely sustains their migratory phenotype. Using cohorts of CRC patients, we document that the expression of CI is downregulated in the CMS4 subgroup, and that low CI expression is associated with poor prognosis. Patients' datasets reveal an inverse correlation between CI and the epithelial-mesenchymal transition (EMT) pathway. CONCLUSION We showed that inhibition of CI contributes to heighten mtROS, which likely foster MDST8 migration and might account for the specific EMT signature of CMS4 tumors. These data reveal a novel role of mitochondrial CI in CRC, with biological consequences that may be targeted with anti- or pro-oxidant drugs in clinical practice.
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Affiliation(s)
- Jean Bastin
- Centre de Recherche des Cordeliers, INSERM U1138, Sorbonne Université, Université Paris-Cité, 15, Rue de l'Ecole de Médecine, 75006, Paris, France
| | - Marine Sroussi
- Centre de Recherche des Cordeliers, INSERM U1138, Sorbonne Université, Université Paris-Cité, 15, Rue de l'Ecole de Médecine, 75006, Paris, France
- Laboratoire de Biochimie, Ecole Supérieure de Physique et de Chimie Industrielle de la Ville de Paris, 75005, Paris, France
| | - Ivan Nemazanyy
- Plate Plateforme d'étude du Métabolisme, SFR Necker, INSERM US24/CNRS UAR3633, 75015, Paris, France
| | - Pierre Laurent-Puig
- Centre de Recherche des Cordeliers, INSERM U1138, Sorbonne Université, Université Paris-Cité, 15, Rue de l'Ecole de Médecine, 75006, Paris, France
- Institut du Cancer Paris CARPEM, Department of Biology Hôpital Georges Pompidou, 75015, Paris, France
| | - Sophie Mouillet-Richard
- Centre de Recherche des Cordeliers, INSERM U1138, Sorbonne Université, Université Paris-Cité, 15, Rue de l'Ecole de Médecine, 75006, Paris, France
| | - Fatima Djouadi
- Centre de Recherche des Cordeliers, INSERM U1138, Sorbonne Université, Université Paris-Cité, 15, Rue de l'Ecole de Médecine, 75006, Paris, France.
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Pozzi G, Presta V, Masselli E, Condello G, Cortellazzi S, Arcari ML, Micheloni C, Vitale M, Gobbi G, Mirandola P, Carubbi C. Interplay between Protein Kinase C Epsilon and Reactive Oxygen Species during Myogenic Differentiation. Cells 2023; 12:1792. [PMID: 37443826 PMCID: PMC10340168 DOI: 10.3390/cells12131792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 06/22/2023] [Accepted: 06/30/2023] [Indexed: 07/15/2023] Open
Abstract
Reactive oxygen species (ROS) are currently recognized as a key driver of several physiological processes. Increasing evidence indicates that ROS levels can affect myogenic differentiation, but the molecular mechanisms still need to be elucidated. Protein kinase C (PKC) epsilon (PKCe) promotes muscle stem cell differentiation and regeneration of skeletal muscle after injury. PKCs play a tissue-specific role in redox biology, with specific isoforms being both a target of ROS and an up-stream regulator of ROS production. Therefore, we hypothesized that PKCe represents a molecular link between redox homeostasis and myogenic differentiation. We used an in vitro model of a mouse myoblast cell line (C2C12) to study the PKC-redox axis. We demonstrated that the transition from a myoblast to myotube is typified by increased PKCe protein content and decreased ROS. Intriguingly, the expression of the antioxidant enzyme superoxide dismutase 2 (SOD2) is significantly higher in the late phases of myogenic differentiation, mimicking PKCe protein content. Furthermore, we demonstrated that PKCe inhibition increases ROS and reduces SOD2 protein content while SOD2 silencing did not affect PKCe protein content, suggesting that the kinase could be an up-stream regulator of SOD2. To support this hypothesis, we found that in C2C12 cells, PKCe interacts with Nrf2, whose activation induces SOD2 transcription. Overall, our results indicate that PKCe is capable of activating the antioxidant signaling preventing ROS accumulation in a myotube, eventually promoting myogenic differentiation.
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Affiliation(s)
- Giulia Pozzi
- Department of Medicine and Surgery (DiMeC), University of Parma, Via Gramsci, 14, 43126 Parma, Italy; (G.P.); (V.P.); (E.M.); (G.C.); (M.L.A.); (C.M.); (M.V.); (C.C.)
| | - Valentina Presta
- Department of Medicine and Surgery (DiMeC), University of Parma, Via Gramsci, 14, 43126 Parma, Italy; (G.P.); (V.P.); (E.M.); (G.C.); (M.L.A.); (C.M.); (M.V.); (C.C.)
| | - Elena Masselli
- Department of Medicine and Surgery (DiMeC), University of Parma, Via Gramsci, 14, 43126 Parma, Italy; (G.P.); (V.P.); (E.M.); (G.C.); (M.L.A.); (C.M.); (M.V.); (C.C.)
| | - Giancarlo Condello
- Department of Medicine and Surgery (DiMeC), University of Parma, Via Gramsci, 14, 43126 Parma, Italy; (G.P.); (V.P.); (E.M.); (G.C.); (M.L.A.); (C.M.); (M.V.); (C.C.)
| | - Samuele Cortellazzi
- Department of Medicine and Surgery (DiMeC), University of Parma, Via Gramsci, 14, 43126 Parma, Italy; (G.P.); (V.P.); (E.M.); (G.C.); (M.L.A.); (C.M.); (M.V.); (C.C.)
| | - Maria Luisa Arcari
- Department of Medicine and Surgery (DiMeC), University of Parma, Via Gramsci, 14, 43126 Parma, Italy; (G.P.); (V.P.); (E.M.); (G.C.); (M.L.A.); (C.M.); (M.V.); (C.C.)
| | - Cristina Micheloni
- Department of Medicine and Surgery (DiMeC), University of Parma, Via Gramsci, 14, 43126 Parma, Italy; (G.P.); (V.P.); (E.M.); (G.C.); (M.L.A.); (C.M.); (M.V.); (C.C.)
| | - Marco Vitale
- Department of Medicine and Surgery (DiMeC), University of Parma, Via Gramsci, 14, 43126 Parma, Italy; (G.P.); (V.P.); (E.M.); (G.C.); (M.L.A.); (C.M.); (M.V.); (C.C.)
- Italian Foundation for Research in Balneotherapy (FoRST), 00198 Rome, Italy
| | - Giuliana Gobbi
- Department of Medicine and Surgery (DiMeC), University of Parma, Via Gramsci, 14, 43126 Parma, Italy; (G.P.); (V.P.); (E.M.); (G.C.); (M.L.A.); (C.M.); (M.V.); (C.C.)
| | - Prisco Mirandola
- Department of Medicine and Surgery (DiMeC), University of Parma, Via Gramsci, 14, 43126 Parma, Italy; (G.P.); (V.P.); (E.M.); (G.C.); (M.L.A.); (C.M.); (M.V.); (C.C.)
| | - Cecilia Carubbi
- Department of Medicine and Surgery (DiMeC), University of Parma, Via Gramsci, 14, 43126 Parma, Italy; (G.P.); (V.P.); (E.M.); (G.C.); (M.L.A.); (C.M.); (M.V.); (C.C.)
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26
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Gao E, Sun X, Thorne RF, Zhang XD, Li J, Shao F, Ma J, Wu M. NIPSNAP1 directs dual mechanisms to restrain senescence in cancer cells. J Transl Med 2023; 21:401. [PMID: 37340421 DOI: 10.1186/s12967-023-04232-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 05/27/2023] [Indexed: 06/22/2023] Open
Abstract
BACKGROUND Although the executive pathways of senescence are known, the underlying control mechanisms are diverse and not fully understood, particularly how cancer cells avoid triggering senescence despite experiencing exacerbated stress conditions within the tumor microenvironment. METHODS Mass spectrometry (MS)-based proteomic screening was used to identify differentially regulated genes in serum-starved hepatocellular carcinoma cells and RNAi employed to determine knockdown phenotypes of prioritized genes. Thereafter, gene function was investigated using cell proliferation assays (colony-formation, CCK-8, Edu incorporation and cell cycle) together with cellular senescence assays (SA-β-gal, SAHF and SASP). Gene overexpression and knockdown techniques were applied to examine mRNA and protein regulation in combination with luciferase reporter and proteasome degradation assays, respectively. Flow cytometry was applied to detect changes in cellular reactive oxygen species (ROS) and in vivo gene function examined using a xenograft model. RESULTS Among the genes induced by serum deprivation, NIPSNAP1 was selected for investigation. Subsequent experiments revealed that NIPSNAP1 promotes cancer cell proliferation and inhibits P27-dependent induction of senescence via dual mechanisms. Firstly, NIPSNAP1 maintains the levels of c-Myc by sequestering the E3 ubiquitin ligase FBXL14 to prevent the proteasome-mediated turnover of c-Myc. Intriguingly, NIPSNAP1 levels are restrained by transcriptional repression mediated by c-Myc-Miz1, with repression lifted in response to serum withdrawal, thus identifying feedback regulation between NIPSNAP1 and c-Myc. Secondly, NIPSNAP1 was shown to modulate ROS levels by promoting interactions between the deacetylase SIRT3 and superoxide dismutase 2 (SOD2). Consequent activation of SOD2 serves to maintain cellular ROS levels below the critical levels required to induce cell cycle arrest and senescence. Importantly, the actions of NIPSNAP1 in promoting cancer cell proliferation and preventing senescence were recapitulated in vivo using xenograft models. CONCLUSIONS Together, these findings reveal NIPSNAP1 as an important mediator of c-Myc function and a negative regulator of cellular senescence. These findings also provide a theoretical basis for cancer therapy where targeting NIPSNAP1 invokes cellular senescence.
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Affiliation(s)
- Enyi Gao
- Translational Research Institute, Henan Provincial People's Hospital, School of Clinical Medicine, Henan University, Zhengzhou, 450046, China
- School of Basic Medical Sciences, Henan University, Zhengzhou, 450046, China
| | - Xiaoya Sun
- School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, 450001, China
| | - Rick Francis Thorne
- Henan Provincial People's Hospital, Zhengzhou University, Zhengzhou, 450003, China
| | - Xu Dong Zhang
- Henan Provincial People's Hospital, Zhengzhou University, Zhengzhou, 450003, China
| | - Jinming Li
- Henan Provincial People's Hospital, Zhengzhou University, Zhengzhou, 450003, China
| | - Fengmin Shao
- Henan Provincial People's Hospital, Zhengzhou University, Zhengzhou, 450003, China.
| | - Jianli Ma
- Department of Radiation Oncology, Harbin Medical University Cancer Hospital, Harbin, China.
| | - Mian Wu
- Translational Research Institute, Henan Provincial People's Hospital, School of Clinical Medicine, Henan University, Zhengzhou, 450046, China.
- School of Basic Medical Sciences, Henan University, Zhengzhou, 450046, China.
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Asanin M, Ercegovac M, Krljanac G, Djukic T, Coric V, Jerotic D, Pljesa-Ercegovac M, Matic M, Milosevic I, Viduljevic M, Stevanovic G, Ranin J, Simic T, Bukumiric Z, Savic-Radojevic A. Antioxidant Genetic Variants Modify Echocardiography Indices in Long COVID. Int J Mol Sci 2023; 24:10234. [PMID: 37373377 DOI: 10.3390/ijms241210234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 06/08/2023] [Accepted: 06/12/2023] [Indexed: 06/29/2023] Open
Abstract
Although disturbance of redox homeostasis might be responsible for COVID-19 cardiac complications, this molecular mechanism has not been addressed yet. We have proposed modifying the effects of antioxidant proteins polymorphisms (superoxide dismutase 2 (SOD2), glutathione peroxidase 1 (GPX1), glutathione peroxidase 3 (GPX3) and nuclear factor erythroid 2-related factor 2, (Nrf2)) in individual susceptibility towards the development of cardiac manifestations of long COVID-19. The presence of subclinical cardiac dysfunction was assessed via echocardiography and cardiac magnetic resonance imaging in 174 convalescent COVID-19 patients. SOD2, GPX1, GPX3 and Nrf2 polymorphisms were determined via the appropriate PCR methods. No significant association of the investigated polymorphisms with the risk of arrhythmia development was found. However, the carriers of variant GPX1*T, GPX3*C or Nrf2*A alleles were more than twice less prone for dyspnea development in comparison with the carriers of the referent ones. These findings were even more potentiated in the carriers of any two variant alleles of these genes (OR = 0.273, and p = 0.016). The variant GPX alleles were significantly associated with left atrial and right ventricular echocardiographic parameters, specifically LAVI, RFAC and RV-EF (p = 0.025, p = 0.009, and p = 0.007, respectively). Based on the relation between the variant SOD2*T allele and higher levels of LV echocardiographic parameters, EDD, LVMI and GLS, as well as troponin T (p = 0.038), it can be proposed that recovered COVID-19 patients, who are the carriers of this genetic variant, might have subtle left ventricular systolic dysfunction. No significant association between the investigated polymorphisms and cardiac disfunction was observed when cardiac magnetic resonance imaging was performed. Our results on the association between antioxidant genetic variants and long COVID cardiological manifestations highlight the involvement of genetic propensity in both acute and long COVID clinical manifestations.
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Affiliation(s)
- Milika Asanin
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
- Clinic of Cardiology, Clinical Centre of Serbia, 11000 Belgrade, Serbia
| | - Marko Ercegovac
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
- Clinic of Neurology, Clinical Centre of Serbia, 11000 Belgrade, Serbia
| | - Gordana Krljanac
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
- Clinic of Cardiology, Clinical Centre of Serbia, 11000 Belgrade, Serbia
| | - Tatjana Djukic
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
- Institute of Medical and Clinical Biochemistry, 11000 Belgrade, Serbia
| | - Vesna Coric
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
- Institute of Medical and Clinical Biochemistry, 11000 Belgrade, Serbia
| | - Djurdja Jerotic
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
- Institute of Medical and Clinical Biochemistry, 11000 Belgrade, Serbia
| | - Marija Pljesa-Ercegovac
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
- Institute of Medical and Clinical Biochemistry, 11000 Belgrade, Serbia
| | - Marija Matic
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
- Institute of Medical and Clinical Biochemistry, 11000 Belgrade, Serbia
| | - Ivana Milosevic
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
- Clinic of Infectious and Tropical Diseases, Clinical Centre of Serbia, 11000 Belgrade, Serbia
| | | | - Goran Stevanovic
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
- Clinic of Infectious and Tropical Diseases, Clinical Centre of Serbia, 11000 Belgrade, Serbia
| | - Jovan Ranin
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
- Clinic of Infectious and Tropical Diseases, Clinical Centre of Serbia, 11000 Belgrade, Serbia
| | - Tatjana Simic
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
- Institute of Medical and Clinical Biochemistry, 11000 Belgrade, Serbia
- Department of Medical Sciences, Serbian Academy of Sciences and Arts, 11000 Belgrade, Serbia
| | - Zoran Bukumiric
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
- Institute of Medical Statistics and Informatics, 11000 Belgrade, Serbia
| | - Ana Savic-Radojevic
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
- Institute of Medical and Clinical Biochemistry, 11000 Belgrade, Serbia
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Su IC, Su YK, Setiawan SA, Yadav VK, Fong IH, Yeh CT, Lin CM, Liu HW. NADPH Oxidase Subunit CYBB Confers Chemotherapy and Ferroptosis Resistance in Mesenchymal Glioblastoma via Nrf2/ SOD2 Modulation. Int J Mol Sci 2023; 24:ijms24097706. [PMID: 37175412 PMCID: PMC10178261 DOI: 10.3390/ijms24097706] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Revised: 04/14/2023] [Accepted: 04/19/2023] [Indexed: 05/15/2023] Open
Abstract
Glioblastoma multiforme (GBM) is a highly heterogeneous disease with a mesenchymal subtype tending to exhibit more aggressive and multitherapy-resistant features. Glioblastoma stem-cells derived from mesenchymal cells are reliant on iron supply, accumulated with high reactive oxygen species (ROS), and susceptible to ferroptosis. Temozolomide (TMZ) treatment is the mainstay drug for GBM despite the rapid development of resistance in mesenchymal GBM. The main interconnection between mesenchymal features, TMZ resistance, and ferroptosis are poorly understood. Herein, we demonstrated that a subunit of NADPH oxidase, CYBB, orchestrated mesenchymal shift and promoted TMZ resistance by modulating the anti-ferroptosis circuitry Nrf2/SOD2 axis. Public transcriptomic data re-analysis found that CYBB and SOD2 were highly upregulated in the mesenchymal subtype of GBM. Accordingly, our GBM cohort confirmed a high expression of CYBB in the GBM tumor and was associated with mesenchymal features and poor clinical outcome. An in vitro study demonstrated that TMZ-resistant GBM cells displayed mesenchymal and stemness features while remaining resilient to erastin-mediated ferroptosis by activating the CYBB/Nrf2/SOD2 axis. The CYBB maintained a high ROS state to sustain the mesenchymal phenotype, TMZ resistance, and reduced erastin sensitivity. Mechanistically, CYBB interacted with Nrf2 and consequently regulated SOD2 transcription. Compensatory antioxidant SOD2 essentially protected against the deleterious effect of high ROS while attenuating ferroptosis in TMZ-resistant cells. An animal study highlighted the protective role of SOD2 to mitigate erastin-triggered ferroptosis and tolerate oxidative stress burden in mice harboring TMZ-resistant GBM cell xenografts. Therefore, CYBB captured ferroptosis resilience in mesenchymal GBM. The downstream compensatory activity of CYBB via the Nrf2/SOD2 axis is exploitable through erastin-induced ferroptosis to overcome TMZ resistance.
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Affiliation(s)
- I-Chang Su
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei City 11031, Taiwan
- Department of Neurology, School of Medicine, College of Medicine, Taipei Medical University, Taipei City 11031, Taiwan
- Division of Neurosurgery, Department of Surgery, Taipei Medical University-Shuang Ho Hospital, New Taipei City 23561, Taiwan
- Taipei Neuroscience Institute, Taipei Medical University, Taipei City 11031, Taiwan
| | - Yu-Kai Su
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei City 11031, Taiwan
- Department of Neurology, School of Medicine, College of Medicine, Taipei Medical University, Taipei City 11031, Taiwan
- Division of Neurosurgery, Department of Surgery, Taipei Medical University-Shuang Ho Hospital, New Taipei City 23561, Taiwan
- Taipei Neuroscience Institute, Taipei Medical University, Taipei City 11031, Taiwan
| | - Syahru Agung Setiawan
- International Ph.D. Program in Medicine, College of Medicine, Taipei Medical University, Taipei City 11031, Taiwan
- Department of Medical Research & Education, Taipei Medical University-Shuang Ho Hospital, New Taipei City 23561, Taiwan
| | - Vijesh Kumar Yadav
- Department of Medical Research & Education, Taipei Medical University-Shuang Ho Hospital, New Taipei City 23561, Taiwan
| | - Iat-Hang Fong
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei City 11031, Taiwan
- Department of Neurology, School of Medicine, College of Medicine, Taipei Medical University, Taipei City 11031, Taiwan
- Division of Neurosurgery, Department of Surgery, Taipei Medical University-Shuang Ho Hospital, New Taipei City 23561, Taiwan
- Taipei Neuroscience Institute, Taipei Medical University, Taipei City 11031, Taiwan
| | - Chi-Tai Yeh
- Department of Medical Research & Education, Taipei Medical University-Shuang Ho Hospital, New Taipei City 23561, Taiwan
- Continuing Education Program of Food Biotechnology Applications, College of Science and Engineering, National Taitung University, Taitung 95092, Taiwan
| | - Chien-Min Lin
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei City 11031, Taiwan
- Department of Neurology, School of Medicine, College of Medicine, Taipei Medical University, Taipei City 11031, Taiwan
- Division of Neurosurgery, Department of Surgery, Taipei Medical University-Shuang Ho Hospital, New Taipei City 23561, Taiwan
- Taipei Neuroscience Institute, Taipei Medical University, Taipei City 11031, Taiwan
| | - Heng-Wei Liu
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei City 11031, Taiwan
- Department of Neurology, School of Medicine, College of Medicine, Taipei Medical University, Taipei City 11031, Taiwan
- Division of Neurosurgery, Department of Surgery, Taipei Medical University-Shuang Ho Hospital, New Taipei City 23561, Taiwan
- Taipei Neuroscience Institute, Taipei Medical University, Taipei City 11031, Taiwan
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Zou H, Qu H, Bian Y, Sun J, Wang T, Ma Y, Yuan Y, Gu J, Bian J, Liu Z. Polystyrene Microplastics Induce Oxidative Stress in Mouse Hepatocytes in Relation to Their Size. Int J Mol Sci 2023; 24:ijms24087382. [PMID: 37108543 PMCID: PMC10138773 DOI: 10.3390/ijms24087382] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Revised: 04/06/2023] [Accepted: 04/11/2023] [Indexed: 04/29/2023] Open
Abstract
Microplastics have become a new type of environmental pollutant that can accumulate in various tissues and organs of the body and cause chronic damage. In this study, two different size polystyrene microplastics (PS-MPs, 5 μm and 0.5 μm) exposure models were established in mice to investigate the effects of PS-MPs with different particle sizes on oxidative stress in the liver. The results showed that PS-MPs exposure caused a decrease in body weight and liver-to-body weight. The hematoxylin and eosin staining and transmission electron microscopy results showed that exposure to PS-MPs led to the disorganized cellular structure of liver tissue, nuclear crinkling, and mitochondrial vacuolation. The extent of damage in the 5 μm PS-MP exposure group was more extensive when compared with the other group. The evaluation of oxidative-stress-related indicators showed that PS-MPs exposure exacerbated oxidative stress in hepatocytes, especially in the 5 μm PS-MPs group. The expression of oxidative-stress-related proteins sirtuin 3(SIRT3) and superoxide dismutase (SOD2) was significantly reduced, and the reduction was more pronounced in the 5 μm PS-MPs group. In conclusion, PS-MPs exposure led to oxidative stress in mouse hepatocytes and caused more severe damage in the 5 μm PS-MPs group when compared with the 0.5 μm PS-MPs group.
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Affiliation(s)
- Hui Zou
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
| | - Huayi Qu
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
| | - Yusheng Bian
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
| | - Jian Sun
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
| | - Tao Wang
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
| | - Yonggang Ma
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
| | - Yan Yuan
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
| | - Jianhong Gu
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
| | - Jianchun Bian
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
| | - Zongping Liu
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
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30
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Carrillo-Beltrán D, Osorio JC, Blanco R, Oliva C, Boccardo E, Aguayo F. Interaction between Cigarette Smoke and Human Papillomavirus 16 E6/E7 Oncoproteins to Induce SOD2 Expression and DNA Damage in Head and Neck Cancer. Int J Mol Sci 2023; 24:ijms24086907. [PMID: 37108069 PMCID: PMC10138975 DOI: 10.3390/ijms24086907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 03/31/2023] [Accepted: 04/02/2023] [Indexed: 04/29/2023] Open
Abstract
Even though epidemiological studies suggest that tobacco smoking and high-risk human papillomavirus (HR-HPV) infection are mutually exclusive risk factors for developing head and neck cancer (HNC), a portion of subjects who develop this heterogeneous group of cancers are both HPV-positive and smokers. Both carcinogenic factors are associated with increased oxidative stress (OS) and DNA damage. It has been suggested that superoxide dismutase 2 (SOD2) can be independently regulated by cigarette smoke and HPV, increasing adaptation to OS and tumor progression. In this study, we analyzed SOD2 levels and DNA damage in oral cells ectopically expressing HPV16 E6/E7 oncoproteins and exposed to cigarette smoke condensate (CSC). Additionally, we analyzed SOD2 transcripts in The Cancer Genome Atlas (TCGA) Head and Neck Cancer Database. We found that oral cells expressing HPV16 E6/E7 oncoproteins exposed to CSC synergistically increased SOD2 levels and DNA damage. Additionally, the SOD2 regulation by E6, occurs in an Akt1 and ATM-independent manner. This study suggests that HPV and cigarette smoke interaction in HNC promotes SOD2 alterations, leading to increased DNA damage and, in turn, contributing to development of a different clinical entity.
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Affiliation(s)
- Diego Carrillo-Beltrán
- Instituto de Bioquímica y Microbiología, Facultad de Ciencias, Universidad Austral de Chile, Valdivia 5090000, Chile
| | - Julio C Osorio
- Laboratorio de Oncovirología, Programa de Virología, Instituto de Ciencias Biomédicas (ICBM), Facultad de Medicina, Universidad de Chile, Santiago 8380000, Chile
| | - Rancés Blanco
- Laboratorio de Oncovirología, Programa de Virología, Instituto de Ciencias Biomédicas (ICBM), Facultad de Medicina, Universidad de Chile, Santiago 8380000, Chile
| | - Carolina Oliva
- Laboratorio de Oncovirología, Programa de Virología, Instituto de Ciencias Biomédicas (ICBM), Facultad de Medicina, Universidad de Chile, Santiago 8380000, Chile
| | - Enrique Boccardo
- Department of Microbiology, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo 05508-900, Brazil
| | - Francisco Aguayo
- Departamento de Biomedicina, Facultad de Medicina, Universidad de Tarapacá, Arica 1000000, Chile
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31
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Sharma S, Sharma P, Subedi U, Bhattarai S, Miller C, Manikandan S, Batinic-Haberle I, Spasojevic I, Sun H, Panchatcharam M, Miriyala S. Mn(III) Porphyrin, MnTnBuOE-2-PyP 5+, Commonly Known as a Mimic of Superoxide Dismutase Enzyme, Protects Cardiomyocytes from Hypoxia/Reoxygenation Induced Injury via Reducing Oxidative Stress. Int J Mol Sci 2023; 24:6159. [PMID: 37047131 PMCID: PMC10094288 DOI: 10.3390/ijms24076159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 03/15/2023] [Accepted: 03/22/2023] [Indexed: 04/14/2023] Open
Abstract
Myocardial ischemia-reperfusion injury (I/R) causes damage to cardiomyocytes through oxidative stress and apoptosis. We investigated the cardioprotective effects of MnTnBuOE-2-PyP5+ (BMX-001), a superoxide dismutase mimic, in an in vitro model of I/R injury in H9c2 cardiomyocytes. We found that BMX-001 protected against hypoxia/reoxygenation (H/R)-induced oxidative stress, as evident by a significant reduction in intracellular and mitochondrial superoxide levels. BMX-001 pre-treatment also reduced H/R-induced cardiomyocyte apoptosis, as marked by a reduction in TUNEL-positive cells. We further demonstrated that BMX-001 pre-treatment significantly improved mitochondrial function, particularly O2 consumption, in mouse adult cardiomyocytes subjected to H/R. BMX-001 treatment also attenuated cardiolipin peroxidation, 4-hydroxynonenal (4-HNE) level, and 4-HNE adducted proteins following H/R injury. Finally, the pre-treatment with BMX-001 improved cell viability and lactate dehydrogenase (LDH) activity in H9c2 cells following H/R injury. Our findings suggest that BMX-001 has therapeutic potential as a cardioprotective agent against oxidative stress-induced H/R damage in H9c2 cardiomyocytes.
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Affiliation(s)
- Sudha Sharma
- Department of Cellular Biology and Anatomy, Louisiana State University Health Sciences-Shreveport, Shreveport, LA 71103, USA
| | - Papori Sharma
- Department of Cellular Biology and Anatomy, Louisiana State University Health Sciences-Shreveport, Shreveport, LA 71103, USA
| | - Utsab Subedi
- Department of Cellular Biology and Anatomy, Louisiana State University Health Sciences-Shreveport, Shreveport, LA 71103, USA
| | - Susmita Bhattarai
- Department of Cellular Biology and Anatomy, Louisiana State University Health Sciences-Shreveport, Shreveport, LA 71103, USA
| | - Chloe Miller
- Department of Cellular Biology and Anatomy, Louisiana State University Health Sciences-Shreveport, Shreveport, LA 71103, USA
| | - Shrivats Manikandan
- Department of Cellular Biology and Anatomy, Louisiana State University Health Sciences-Shreveport, Shreveport, LA 71103, USA
| | - Ines Batinic-Haberle
- Department of Radiation Oncology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Ivan Spasojevic
- Department of Medicine, Duke University School of Medicine, Durham, NC 27710, USA
- Pharmacokinetics/Pharmacodynamics (PK/PD) Core Laboratory, Duke Cancer Institute, Duke University School of Medicine, Durham, NC 27710, USA
| | - Hong Sun
- Department of Cellular Biology and Anatomy, Louisiana State University Health Sciences-Shreveport, Shreveport, LA 71103, USA
| | - Manikandan Panchatcharam
- Department of Cellular Biology and Anatomy, Louisiana State University Health Sciences-Shreveport, Shreveport, LA 71103, USA
| | - Sumitra Miriyala
- Department of Cellular Biology and Anatomy, Louisiana State University Health Sciences-Shreveport, Shreveport, LA 71103, USA
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Gan C, Liu T, Jia X, Huang X, Qin X, Wang X, Sheng J, Xu H. ATP supplementation suppresses UVB-induced photoaging in HaCaT cells via upregulation of expression of SIRT3 and SOD2. Skin Res Technol 2023; 29:e13303. [PMID: 36973992 PMCID: PMC10155794 DOI: 10.1111/srt.13303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 02/22/2023] [Indexed: 03/18/2023]
Abstract
BACKGROUND Skin photoaging is the damage caused by excessive exposure to ultraviolet (UV) irradiation. We investigated the effect of adenosine triphosphate (ATP) supplementation on UVB-induced photoaging in HaCaT cells and its potential molecular mechanism. MATERIALS AND METHODS The toxicity of ATP on HaCaT cells was examined by the MTT assay. The effects of ATP supplementation on the viability and apoptosis of HaCaT cells were determined by crystal-violet staining and flow cytometry, respectively. Cellular and mitochondrial ROS were stained using fluorescent dyes. Expression of Bax, B-cell lymphoma (Bcl)-2, sirtuin (SIRT)3, and superoxide dismutase (SOD)2 was measured via western blotting. RESULTS ATP (1, 2 mM) exerted no toxic effect on the normal growth of HaCaT cells. UVB irradiation caused the apoptosis of HaCaT cells, and ATP supplementation inhibited the apoptosis induced by UVB significantly, as verified by expression of Bax and Bcl-2. UVB exposure resulted in accumulation of cellular and mitochondrial reactive oxygen species (ROS), but ATP supplementation suppressed these increases. Expression of SIRT3 and SOD2 was decreased upon exposure to UVB irradiation but, under ATP supplementation, expression of SIRT3 and SOD2 was reversed, which was consistent with the reduction in ROS level observed in ATP-treated HaCaT cells after exposure to UVB irradiation. CONCLUSIONS ATP supplementation can suppress UVB irradiation-induced photoaging in HaCaT cells via upregulation of expression of SIRT3 and SOD2.
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Affiliation(s)
- Chunxia Gan
- Key Laboratory of Pu‐er Tea ScienceMinistry of Education, Yunnan Agricultural UniversityKunmingChina
| | - Titi Liu
- Key Laboratory of Pu‐er Tea ScienceMinistry of Education, Yunnan Agricultural UniversityKunmingChina
- College of ScienceYunnan Agricultural UniversityKunmingChina
- State Key Laboratory for Conservation and Utilization of Bio‐Resources in YunnanYunnan Agricultural UniversityKunmingChina
| | - Xiaorong Jia
- Department of DermatologyThe First Affiliated Hospital of Kunming Medical UniversityKunmingChina
| | - Xueqin Huang
- Key Laboratory of Pu‐er Tea ScienceMinistry of Education, Yunnan Agricultural UniversityKunmingChina
| | - Xiangdong Qin
- Key Laboratory of Pu‐er Tea ScienceMinistry of Education, Yunnan Agricultural UniversityKunmingChina
- College of ScienceYunnan Agricultural UniversityKunmingChina
| | - Xuanjun Wang
- Key Laboratory of Pu‐er Tea ScienceMinistry of Education, Yunnan Agricultural UniversityKunmingChina
- State Key Laboratory for Conservation and Utilization of Bio‐Resources in YunnanYunnan Agricultural UniversityKunmingChina
| | - Jun Sheng
- Key Laboratory of Pu‐er Tea ScienceMinistry of Education, Yunnan Agricultural UniversityKunmingChina
- State Key Laboratory for Conservation and Utilization of Bio‐Resources in YunnanYunnan Agricultural UniversityKunmingChina
| | - Huanhuan Xu
- Key Laboratory of Pu‐er Tea ScienceMinistry of Education, Yunnan Agricultural UniversityKunmingChina
- College of ScienceYunnan Agricultural UniversityKunmingChina
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Perone I, Ghena N, Wang J, Mackey C, Wan R, Malla S, Gorospe M, Cheng A, Mattson MP. Mitochondrial SIRT3 Deficiency Results in Neuronal Network Hyperexcitability, Accelerates Age-Related Aβ Pathology, and Renders Neurons Vulnerable to Aβ Toxicity. Neuromolecular Med 2023; 25:27-39. [PMID: 35749057 PMCID: PMC9810471 DOI: 10.1007/s12017-022-08713-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 06/01/2022] [Indexed: 01/05/2023]
Abstract
Aging is the major risk factor for Alzheimer's disease (AD). Mitochondrial dysfunction and neuronal network hyperexcitability are two age-related alterations implicated in AD pathogenesis. We found that levels of the mitochondrial protein deacetylase sirtuin-3 (SIRT3) are significantly reduced, and consequently mitochondria protein acetylation is increased in brain cells during aging. SIRT3-deficient mice exhibit robust mitochondrial protein hyperacetylation and reduced mitochondrial mass during aging. Moreover, SIRT3-deficient mice exhibit epileptiform and burst-firing electroencephalogram activity indicating neuronal network hyperexcitability. Both aging and SIRT3 deficiency result in increased sensitivity to kainic acid-induced seizures. Exposure of cultured cerebral cortical neurons to amyloid β-peptide (Aβ) results in a reduction in SIRT3 levels and SIRT3-deficient neurons exhibit heightened sensitivity to Aβ toxicity. Finally, SIRT3 haploinsufficiency in middle-aged App/Ps1 double mutant transgenic mice results in a significant increase in Aβ load compared with App/Ps1 double mutant mice with normal SIRT3 levels. Collectively, our findings suggest that SIRT3 plays an important role in protecting neurons against Aβ pathology and excitotoxicity.
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Affiliation(s)
- Isabella Perone
- Laboratory of Genetics and Genomics, National Institute on Aging Intramural Research Program, Baltimore, MD, 21224, USA
- Laboratory of Neurosciences, National Institute on Aging Intramural Research Program, Baltimore, MD, 21224, USA
| | - Nathaniel Ghena
- Laboratory of Neurosciences, National Institute on Aging Intramural Research Program, Baltimore, MD, 21224, USA
| | - Jing Wang
- Laboratory of Neurosciences, National Institute on Aging Intramural Research Program, Baltimore, MD, 21224, USA
- Department of Integrative Medicine and Neurobiology, Institutes of Brain Science, Shanghai Medical College, Fudan University, Shanghai, China
| | - Chelsea Mackey
- Department of Integrative Medicine and Neurobiology, Institutes of Brain Science, Shanghai Medical College, Fudan University, Shanghai, China
- Laboratory of Cardiovascular Science, National Institute on Aging Intramural Research Program, Baltimore, MD, 21224, USA
| | - Ruiqian Wan
- Laboratory of Neurosciences, National Institute on Aging Intramural Research Program, Baltimore, MD, 21224, USA
| | - Sulochan Malla
- Laboratory of Genetics and Genomics, National Institute on Aging Intramural Research Program, Baltimore, MD, 21224, USA
| | - Myriam Gorospe
- Laboratory of Genetics and Genomics, National Institute on Aging Intramural Research Program, Baltimore, MD, 21224, USA
| | - Aiwu Cheng
- Laboratory of Genetics and Genomics, National Institute on Aging Intramural Research Program, Baltimore, MD, 21224, USA.
- Laboratory of Neurosciences, National Institute on Aging Intramural Research Program, Baltimore, MD, 21224, USA.
| | - Mark P Mattson
- Laboratory of Neurosciences, National Institute on Aging Intramural Research Program, Baltimore, MD, 21224, USA.
- Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA.
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Jówko E, Długołęcka B, Cieśliński I, Kotowska J. Polymorphisms in Genes Encoding VDR, CALCR and Antioxidant Enzymes as Predictors of Bone Tissue Condition in Young, Healthy Men. Int J Mol Sci 2023; 24:ijms24043373. [PMID: 36834780 PMCID: PMC9964706 DOI: 10.3390/ijms24043373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 01/30/2023] [Accepted: 02/02/2023] [Indexed: 02/11/2023] Open
Abstract
The aim of the study was to assess significant predictors of bone mineral content (BMC) and bone mineral density (BMD) in a group of young, healthy men at the time of reaching peak bone mass. Regression analyses showed that age, BMI and practicing combat sports and team sports at a competitive level (trained vs. untrained group; TR vs. CON, respectively) were positive predictors of BMD/BMC values at various skeletal sites. In addition, genetic polymorphisms were among the predictors. In the whole population studied, at almost all measured skeletal sites, the SOD2 AG genotype proved to be a negative predictor of BMC, while the VDR FokI GG genotype was a negative predictor of BMD. In contrast, the CALCR AG genotype was a positive predictor of arm BMD. ANOVA analyses showed that, regarding SOD2 polymorphism, the TR group was responsible for the significant intergenotypic differences in BMC that were observed in the whole study population (i.e., lower BMC values of leg, trunk and whole body were observed in AG TR compared to AA TR). On the other hand, higher BMC at L1-L4 was observed in the SOD2 GG genotype of the TR group compared to in the same genotype of the CON group. For the FokI polymorphism, BMD at L1-L4 was higher in AG TR than in AG CON. In turn, the CALCR AA genotype in the TR group had higher arm BMD compared to the same genotype in the CON group. In conclusion, SOD2, VDR FokI and CALCR polymorphisms seem to affect the association of BMC/BMD values with training status. In general, at least within the VDR FokI and CALCR polymorphisms, less favorable genotypes in terms of BMD (i.e., FokI AG and CALCR AA) appear to be associated with a greater BMD response to sports training. This suggests that, in healthy men during the period of bone mass formation, sports training (combat and team sports) may attenuate the negative impact of genetic factors on bone tissue condition, possibly reducing the risk of osteoporosis in later age.
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Affiliation(s)
- Ewa Jówko
- Department of Physiology and Biochemistry, Faculty of Physical Education and Health in Biała Podlaska, Józef Piłsudski University of Physical Education in Warsaw, 00-968 Warsaw, Poland
- Correspondence: ; Tel.: +48-608-074-393
| | - Barbara Długołęcka
- Department of Physiology and Biochemistry, Faculty of Physical Education and Health in Biała Podlaska, Józef Piłsudski University of Physical Education in Warsaw, 00-968 Warsaw, Poland
| | - Igor Cieśliński
- Department of Sports and Training Sciences, Faculty of Physical Education and Health in Biała Podlaska, Józef Piłsudski University of Physical Education in Warsaw, 00-968 Warsaw, Poland
| | - Jadwiga Kotowska
- Department of Physiology and Biochemistry, Faculty of Physical Education and Health in Biała Podlaska, Józef Piłsudski University of Physical Education in Warsaw, 00-968 Warsaw, Poland
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Amos A, Jiang N, Zong D, Gu J, Zhou J, Yin L, He X, Xu Y, Wu L. Depletion of SOD2 enhances nasopharyngeal carcinoma cell radiosensitivity via ferroptosis induction modulated by DHODH inhibition. BMC Cancer 2023; 23:117. [PMID: 36737723 DOI: 10.1186/s12885-022-10465-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Accepted: 12/20/2022] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Recurrence due to the development of radioresistance remains a major challenge in the clinical management of nasopharyngeal carcinoma. The objective of this study was to increase the sensitivity of nasopharyngeal carcinoma cells to ionizing radiation by enhancing oxidative stress and ferroptosis caused by disrupting the mitochondrial anti-oxidant enzyme system. METHODS Oxidative stress cell model was constructed by SOD2 knockdown using shRNA. The expression and activity of DHODH was suppressed by siRNA and brequinar in SOD2 depleted cells. Protein levels were determined by western blotting and ferroptosis was assessed by C11 BODIPY and malondialdehyde assay. Cell viability was evaluated using CCK-8 assay while radiotoxicity was assessed by colony formation assay. Cellular ATP level was determined by ATP assay kits, ROS was determined by DCFD and DHE, while mitochondrial oxygen consumption was determined by seahorse assay. Data were analyzed by two-tailed independent t-test. RESULTS Radiation upregulated SOD2 expression and SOD2 depletion increased cellular O2.-, malondialdehyde, and the fluorescence intensity of oxidized C11 BODIPY. It also resulted in mitochondrial damage. Its depletion decreased colony formation both under ionizing and non-ionizing radiation conditions. The ferroptosis inhibitor, deferoxamine, rescued cell viability and colony formation in SOD2 depleted cells. Cellular level of malondialdehyde, fluorescence intensity of oxidized C11 BODIPY, O2.- level, ATP, and mitochondrial oxygen consumption decreased following DHODH inhibition in SOD2 depleted cells. Cell viability and colony formation was rescued by DHODH inhibition in SOD2 depleted cells. CONCLUSION Inducing oxidative stress by SOD2 inhibition sensitized nasopharyngeal carcinoma cells to ionizing radiation via ferroptosis induction. This was found to be dependent on DHODH activity. This suggests that DHODH inhibitors should be used with caution during radiotherapy in nasopharyngeal carcinoma patients.
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Tsuchiya H, Shinonaga R, Sakaguchi H, Kitagawa Y, Yoshida K. NEAT1- SOD2 Axis Confers Sorafenib and Lenvatinib Resistance by Activating AKT in Liver Cancer Cell Lines. Curr Issues Mol Biol 2023; 45:1073-85. [PMID: 36826016 DOI: 10.3390/cimb45020071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 01/25/2023] [Accepted: 01/27/2023] [Indexed: 01/31/2023] Open
Abstract
This study investigated the effects of a long noncoding RNA, nuclear paraspeckle assembly transcript 1 (NEAT1) variant 1 (NEAT1v1) on drug resistance in liver cancer cell lines. NEAT1 knockdown activated mitogen-activated protein kinase (MAPK) signaling pathways, including MAPK kinase (MEK)/extracellular signal-regulated kinase (ERK), but suppressed AKT. Moreover, NEAT1 knockdown sensitized liver cancer cells to sorafenib and lenvatinib, both clinically used for treating hepatocellular carcinoma, whereas it conferred resistance to an AKT-targeted drug, capivasertib. NEAT1v1 overexpression suppressed MEK/ERK and activated AKT, resulting in resistance to sorafenib and lenvatinib and sensitization to capivasertib. Superoxide dismutase 2 (SOD2) knockdown reverted the effects of NEAT1v1 overexpression on the sensitivity to the molecular-targeted drugs. Although NEAT1 or SOD2 knockdown enhanced endoplasmic reticulum (ER) stress, concomitant with the suppression of AKT, taurodeoxycholate, an ER stress suppressor, did not restore AKT activity. Although further in vivo and clinical studies are needed, these results suggested that NEAT1v1 switches the growth modality of liver cancer cell lines from MEK/ERK-dependent to AKT-dependent mode via SOD2 and regulates sensitivity to the molecular-targeted drugs independent of ER stress.
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Migliaccio V, Blal N, De Girolamo M, Mastronardi V, Catalano F, Di Gregorio I, Lionetti L, Pompa PP, Guarnieri D. Inter-Organelle Contact Sites Mediate the Intracellular Antioxidant Activity of Platinum Nanozymes: A New Perspective on Cell-Nanoparticle Interaction and Signaling. ACS Appl Mater Interfaces 2023; 15:3882-3893. [PMID: 36629473 PMCID: PMC9880958 DOI: 10.1021/acsami.2c22375] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 12/30/2022] [Indexed: 05/25/2023]
Abstract
The catalytic and antioxidant properties of platinum nanoparticles (PtNPs) make them promising candidates for several applications in nanomedicine. However, an open issue, still shared among most nanomaterials, is the understanding on how internalized PtNPs, which are confined within endo-lysosomal compartments, can exert their activities. To address this problem, here we study the protective effect of 5 nm PtNPs on a human hepatic (HepG2) cell line exposed to dichlorodiphenylethylene (DDE) as a model of oxidative stress. Our results indicate that PtNPs are very efficient to reduce DDE-induced damage in HepG2 cells, in an extent that depends on DDE dose. PtNPs can contrast the unbalance of mitochondrial dynamics induced by DDE and increase the expression of the SOD2 mitochondrial enzyme that recovers cells from oxidative stress. Interestingly, in cells treated with PtNPs─alone or in combination with DDE─mitochondria form contact sites with a rough endoplasmic reticulum and endo-lysosomes containing nanoparticles. These findings indicate that the protective capability of PtNPs, through their intrinsic antioxidant properties and modulating mitochondrial functionality, is mediated by an inter-organelle crosstalk. This study sheds new light about the protective action mechanisms of PtNPs and discloses a novel nano-biointeraction mechanism at the intracellular level, modulated by inter-organelle communication and signaling.
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Affiliation(s)
- Vincenzo Migliaccio
- Dipartimento
di Chimica e Biologia “Adolfo Zambelli”, Università degli Studi di Salerno, Fisciano, Salerno 84084, Italy
| | - Naym Blal
- Dipartimento
di Chimica e Biologia “Adolfo Zambelli”, Università degli Studi di Salerno, Fisciano, Salerno 84084, Italy
| | - Micaela De Girolamo
- Dipartimento
di Chimica e Biologia “Adolfo Zambelli”, Università degli Studi di Salerno, Fisciano, Salerno 84084, Italy
| | - Valentina Mastronardi
- Nanobiointeractions
& Nanodiagnostics, Istituto Italiano
di Tecnologia (IIT), Via Morego 30, Genova 16163, Italy
| | - Federico Catalano
- Electron
Microscopy Facility, Istituto Italiano di
Tecnologia (IIT), Via Morego 30, Genova 16163, Italy
| | - Ilaria Di Gregorio
- Dipartimento
di Chimica e Biologia “Adolfo Zambelli”, Università degli Studi di Salerno, Fisciano, Salerno 84084, Italy
| | - Lillà Lionetti
- Dipartimento
di Chimica e Biologia “Adolfo Zambelli”, Università degli Studi di Salerno, Fisciano, Salerno 84084, Italy
| | - Pier Paolo Pompa
- Nanobiointeractions
& Nanodiagnostics, Istituto Italiano
di Tecnologia (IIT), Via Morego 30, Genova 16163, Italy
| | - Daniela Guarnieri
- Dipartimento
di Chimica e Biologia “Adolfo Zambelli”, Università degli Studi di Salerno, Fisciano, Salerno 84084, Italy
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Nikic P, Dragicevic D, Jerotic D, Savic S, Djukic T, Stankovic B, Kovacevic L, Simic T, Matic M. Polymorphisms of Antioxidant Enzymes SOD2 (rs4880) and GPX1 (rs1050450) Are Associated with Bladder Cancer Risk or Its Aggressiveness. Medicina (Kaunas) 2023; 59. [PMID: 36676755 DOI: 10.3390/medicina59010131] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Revised: 12/19/2022] [Accepted: 12/29/2022] [Indexed: 01/12/2023]
Abstract
Background and Objectives: Oxidative stress induced by increased reactive oxygen species (ROS) production plays an important role in carcinogenesis. The entire urinary tract is continuously exposed to numerous potentially mutagenic environmental agents which generate ROS during their biotransformation. In first line defense against free radicals, antioxidant enzymes superoxide dismutase (SOD2) and glutathione peroxidase (GPX1) both have essential roles. Altered enzyme activity and decreased ability of neutralizing free oxygen radicals as a consequence of genetic polymorphisms in genes encoding these two enzymes are well described so far. This study aimed to investigate the association of GPX1 (rs1050450) and SOD2 (rs4880) genetic variants with the urothelial bladder cancer (UBC) risk independently and in combination with smoking. Furthermore, we aimed to determine whether the UBC stage and pathological grade were influenced by GPX1 and SOD2 polymorphisms. Material and Methods: The study population included 330 patients with UBC (mean age 65 ± 10.3 years) and 227 respective controls (mean age 63.4 ± 7.9 years). Single nucleotide polymorphism (SNP) of GPX1 (rs1050450) was analyzed using the PCR-RFLP, while SOD2 (rs4880) SNP was analyzed using the q-PCR method. Results: Our results showed that UBC risk was significantly increased among carriers of at least one variant SOD2 Val allele compared to the SOD2 Ala16Ala homozygotes (OR = 1.55, p = 0.03). Moreover, this risk was even more pronounced in smokers with at least one variant SOD2 Val allele, since they have even 7.5 fold higher UBC risk (OR = 7.5, p < 0.001). Considering GPX1 polymorphism, we have not found an association with UBC risk. However, GPX1 genotypes distribution differed significantly according to the tumor stage (p ˂ 0.049) and pathohistological grade (p ˂ 0.018). Conclusion: We found that SOD2 genetic polymorphism is associated with the risk of UBC development independently and in combination with cigarette smoking. Furthermore, we showed that GPX1 genetic polymorphism is associated with the aggressiveness of the disease.
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Gautam A, Khan FN, Priya S, Kumar K, Sharda S, Kaul T, Singh I, Langyan S, Yadava P. Cloning and comparative modeling identifies a highly stress tolerant Cu/Zn cytosolic super oxide dismutase 2 from a drought tolerant maize inbred line. PeerJ 2023; 11:e14845. [PMID: 36935928 PMCID: PMC10019340 DOI: 10.7717/peerj.14845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 01/11/2023] [Indexed: 03/14/2023] Open
Abstract
Plants have a complex system of stress response that deals with different types of stresses. Maize (Zea mays L.), one of the most important crops grown throughout the world, across a range of agro-ecological environments, employs complex mechanisms of gene regulation in response to drought stress. HKI 335 is a tropical maize inbred line showing remarkable adaptation to drought stress. Abiotic stresses, like drought, trigger the production of reactive oxygen species (ROS) due to the incomplete reduction or excitation of molecular oxygen, eventually leading to cell damage. Superoxide dismutase (SOD, EC 1.15.1.1) is a metalloenzyme that acts as the first line of defense against ROS. We cloned the Sod2 gene from HKI 335 inbred line and analyzed its protein through detailed in silico characterization. Our comparative modeling revealed that at the level of tertiary structure, the HKI 335 SOD2 protein is highly similar to Potentilla atrosanguinea SOD2, which had been previously identified as highly thermostable SOD that can tolerate autoclaving as well as sub-zero temperatures. We performed phylogenetic analysis, estimated physicochemical properties, post-translational modifications, protein-protein interactions, and domain composition of this SOD2. The phylogenetic analysis showed that orthologous sequences of SOD from different species were clustered into two clusters. Secondary structure prediction indicates that SOD2 is a soluble protein and no transmembrane domains have been found. Most of the beta sheets have RSA value greater than 2. The Ramachandran plot from PDBsum revealed that most of the residues fall in the highly favored region. It was estimated that the value of the instability index was less than 40, the value of the aliphatic index was extremely high and the GRAVY value lies between -2 and +2. We could identify only one phosphorylation site, located at position 20 with a score of 0.692. Overall, the unique stress-tolerant properties of the HKI 335 SOD2, may be one of the reasons contributing to the high drought tolerance trait exhibited by HKI 335 maize inbred line. Further research may reveal more insights into the drought adaptation mechanism in maize and the eventual deployment of the trait in maize hybrids.
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Affiliation(s)
- Anuradha Gautam
- ICAR-Indian Institute of Maize Research, Pusa Campus, New Delhi, India
| | - Fatima Nazish Khan
- Division of Plant Physiology, Indian Agricultural Research Institute, Pusa, New Delhi, India
- Department of Biotechnology, Jamia Millia Islamia, Jamia Nagar, New Delhi, India
| | - Surabhi Priya
- ICAR-Indian Institute of Maize Research, Pusa Campus, New Delhi, India
| | - Krishan Kumar
- ICAR-Indian Institute of Maize Research, Pusa Campus, New Delhi, India
| | - Shivani Sharda
- Amity Institute of Biotechnology, Amity University, Noida, India
| | - Tanushri Kaul
- International Centre for Genetic Engineering and Biotechnology, Aruna Asaf Ali Marg, New Delhi, India
| | - Ishwar Singh
- ICAR-Indian Institute of Maize Research, Pusa Campus, New Delhi, India
| | - Sapna Langyan
- Division of Germplasm Evaluation, ICAR-National Bureau of Plant Genetic Resources, Pusa Campus, New Delhi, India
| | - Pranjal Yadava
- ICAR-Indian Institute of Maize Research, Pusa Campus, New Delhi, India
- Division of Plant Physiology, Indian Agricultural Research Institute, Pusa, New Delhi, India
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Fatima T, Khan S, Khan MM, Kamran R, Uddin MW, Sohrab S. Oxidative Stress in Beta-thalassemia Patients: Role of Enzymatic and Non-enzymatic Modulators. Protein Pept Lett 2023; 30:1030-1037. [PMID: 37953620 DOI: 10.2174/0109298665246270231020062048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Revised: 08/29/2023] [Accepted: 09/15/2023] [Indexed: 11/14/2023]
Abstract
BACKGROUND Oxidative stress is a pathophysiological state that arises due to an imbalance created between ROS generation and the antioxidant potential of the host cell. Transfusion- dependent beta-thalassemia major patients are at high risk of cellular and molecular damages induced by ROS mainly due to iron overload caused by repetitive blood transfusion. OBJECTIVES To analyze oxidative stress status levels in β-thalassemia patients. To analyze the expression profile of enzymatic (NOS2, OGG1, HuR, SOD2) and non-enzymatic (VDR) redox regulators in β-thalassemia patients. To assess polymorphism in VDR (rs2228570) and NOS2 (rs944725) in β-thalassemia patients. To analyze serum vitamin D levels of β-TM patients compared to healthy individuals. METHODS The present case-control study aimed to identify Vitamin D levels in the serum of β-thalassemia patients and compared it with healthy subjects. The study further analyzed VDR FOKI (rs2228570) polymorphism through ARMS-PCR. Expression profiling of VDR, anti-oxidant enzyme (SOD2 and GPx), and their respective regulator (HuR and NrF2) transcripts was done by the 2-ΔΔCt method. RESULTS The study reports that there is no a significant difference between the Vitamin D levels among healthy and patients. VDR polymorphism analysis (rs2228570) demonstrates that although the C allele is prevalent in the study cohort, the frequency of the T allele is comparatively higher in β-thalassemia patients as compared to healthy subjects. Furthermore, patients express lower levels of anti-oxidant enzymes despite having increased oxidative stress. CONCLUSION The study reports that β-thalassemia patients are at higher risk of cellular and molecular damages induced by oxidative stress and their associated pathologies inefficient enzymatic and non-enzymatic anti-oxidant defense systems.
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Affiliation(s)
- Tehseen Fatima
- Dow College of Biotechnology, Dow University of Health Sciences, Karachi, Pakistan
| | - Sadaf Khan
- Dow College of Biotechnology, Dow University of Health Sciences, Karachi, Pakistan
| | | | - Rameesha Kamran
- Dow College of Biotechnology, Dow University of Health Sciences, Karachi, Pakistan
| | - Muhammed Wajih Uddin
- Dow College of Biotechnology, Dow University of Health Sciences, Karachi, Pakistan
| | - Saba Sohrab
- Department of Pediatrics, Baqai Medical University, Karachi, Pakistan
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Sharmen F, Rahman MA, Ahmed AMA, Siddique TA, Rafi MKJ, Tangpong J. Upregulation of Antioxidative Gene Expression by Lasia spinosa Organic Extract Improves the Predisposing Biomarkers and Tissue Architectures in Streptozotocin-Induced Diabetic Models of Long Evans Rats. Antioxidants (Basel) 2022; 11:antiox11122398. [PMID: 36552606 PMCID: PMC9774390 DOI: 10.3390/antiox11122398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 11/27/2022] [Accepted: 11/29/2022] [Indexed: 12/07/2022] Open
Abstract
Plants are an entity essential to the function of the biosphere as well as human health. In the context of human health, this research investigated the effect of Lasia spinosa (Lour) leaf methanolic extracts (LSML) on antioxidative enzymes and gene expression as well as biochemical and histological markers in a streptozotocin (STZ)-induced diabetes model. Fructose-fed streptozotocin (STZ)-induced diabetic animals were subjected to a four-week intervention followed by the assessment of the animal’s blood and tissues for enzymatic, biochemical, histological, and genetic changes. LSML-treated groups were shown to decrease plasma glucose levels and improve body and organ weights compared to the untreated group in a dose-dependent manner. At the doses of 125 and 250 mg/kg b.w., LSML were able to normalize serum, hepatic, and renal biochemical parameters and restore the pancreas, kidney, liver, and spleen tissue architectures to their native state. A considerable increase (p < 0.01) of liver antioxidant enzymes CAT, SOD, GSH, and a decrease of MDA level in LSML-treated groups were found at higher doses. The improved mRNA expression level of antioxidant genes CAT, SOD2, PON1, and PFK1 was also found at the doses of 125 mg/kg and 250 mg/kg BW when compared to untreated control groups. The results demonstrate that LSML impacts the upregulation of antioxidative gene expressions, thus improving the diabetic complications in animal models which need to be affirmed by compound-based antioxidative actions for therapeutic development.
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Affiliation(s)
- Farjana Sharmen
- Department of Genetic Engineering and Biotechnology, University of Chittagong, Chittagong 4331, Bangladesh
- Department of Biochemistry & Molecular Biology, University of Chittagong, Chittagong 4331, Bangladesh
| | - Md. Atiar Rahman
- Department of Biochemistry & Molecular Biology, University of Chittagong, Chittagong 4331, Bangladesh
- School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat 80160, Thailand
- Correspondence: ; Tel.: +880-31-2606001-10 (ext. 4334); Fax: +880-31-726310
| | - A. M. Abu Ahmed
- Department of Genetic Engineering and Biotechnology, University of Chittagong, Chittagong 4331, Bangladesh
| | - Tanvir Ahmed Siddique
- Department of Biochemistry & Molecular Biology, University of Chittagong, Chittagong 4331, Bangladesh
| | - Md. Khalid Juhani Rafi
- Department of Biochemistry & Molecular Biology, University of Chittagong, Chittagong 4331, Bangladesh
| | - Jitbanjong Tangpong
- School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat 80160, Thailand
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Ning L, Rui X, Guorui L, Tinglv F, Donghang L, Chenzhen X, Xiaojing W, Qing G. A novel mechanism for the protection against acute lung injury by melatonin: mitochondrial quality control of lung epithelial cells is preserved through SIRT3-dependent deacetylation of SOD2. Cell Mol Life Sci 2022; 79:610. [PMID: 36449070 DOI: 10.1007/s00018-022-04628-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 08/12/2022] [Accepted: 11/09/2022] [Indexed: 12/05/2022]
Abstract
The mitochondrial quality control of lung epithelial cells is disturbed during sepsis, which contributes to abnormal mitochondrial function and acute lung injury. Melatonin is one of the primary hormones secreted by the pineal gland, displaying favorable antioxidative actions in sepsis and cardiopulmonary disease. However, the potential roles and molecular basis of melatonin in lipopolysaccharide (LPS)-treated lung epithelial cells have not been explored and reported. Herein, we investigated whether melatonin could protect against sepsis-induced acute lung injury (ALI) and LPS-treated lung epithelial cells through the mitochondrial quality control as well as its possible molecular targets. Wild type and Sirt3 knockout mice were intratracheally instilled with LPS for 12 h to construct an in vivo acute lung injury model. Both A549 lung epithelial cells and primary alveolar type II (AT-II) cells were used to explore the possible roles of melatonin in vitro by incubating with small interfering RNA against Sirt3. To determine the involvement of the melatonin receptor, cells and mice were treated with si Mtnr1b and luzindole. Melatonin pretreatment significantly inhibited pathological injury, inflammatory response, oxidative stress, and apoptosis in LPS-treated lung tissues and LPS-treated lung epithelial cells. Furthermore, melatonin also shifted the dynamic course of mitochondria from fission to fusion, inhibited mitophagy and fatty acid oxidation in LPS-treated lung epithelial cells in vitro and in vivo. However, SIRT3 inhibition abolished the protective roles of melatonin in acute lung injury. Mechanistically, we found that melatonin increased the activity and expression of SIRT3, which further promoted the deacetylation of SOD2 at K122 and K68. More importantly, melatonin exerted pulmonary protection by activating MTNR1B but not MTNR1A during ALI. Collectively, melatonin could preserve the mitochondrial quality control of lung epithelial cells through the deacetylation of SOD2 in a SIRT3-dependent manner, which eventually alleviated sepsis-induced injury, inflammation, oxidative stress, and apoptosis. Thus, melatonin may serve as a promising candidate against ALI in the future.
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Affiliation(s)
- Li Ning
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Jiefang Road 238, Wuhan, 430060, China
| | - Xiong Rui
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Jiefang Road 238, Wuhan, 430060, China
| | - Li Guorui
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Jiefang Road 238, Wuhan, 430060, China
| | - Fu Tinglv
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Jiefang Road 238, Wuhan, 430060, China
| | - Li Donghang
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Jiefang Road 238, Wuhan, 430060, China
| | - Xu Chenzhen
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Jiefang Road 238, Wuhan, 430060, China
| | - Wu Xiaojing
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, 430060, China.
| | - Geng Qing
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Jiefang Road 238, Wuhan, 430060, China.
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Tsuchiya H, Shinonaga R, Sakaguchi H, Kitagawa Y, Yoshida K, Shiota G. NEAT1 Confers Radioresistance to Hepatocellular Carcinoma Cells by Inducing PINK1/Parkin-Mediated Mitophagy. Int J Mol Sci 2022; 23. [PMID: 36430876 DOI: 10.3390/ijms232214397] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 11/14/2022] [Accepted: 11/18/2022] [Indexed: 11/22/2022] Open
Abstract
A long noncoding RNA, nuclear paraspeckle assembly transcript 1 (NEAT1) variant 1 (NEAT1v1), confers radioresistance to hepatocellular carcinoma (HCC) cells by inducing autophagy via γ-aminobutyric acid A receptor-associated protein (GABARAP). Radiation induces oxidative stress to damage cellular components and organelles, but it remains unclear how NEAT1v1 protects HCC cells from radiation-induced oxidative stress via autophagy. To address this, we precisely investigated NEAT1v1-induced autophagy in irradiated HCC cell lines. X-ray irradiation significantly increased cellular and mitochondrial oxidative stress and mitochondrial DNA content in HCC cells while NEAT1v1 suppressed them. NEAT1v1 concomitantly induced the phosphatase and tensin homolog-induced kinase 1 (PINK1)/parkin-mediated mitophagy. Interestingly, parkin expression was constitutively upregulated in NEAT1v1-overexpressing HCC cells, leading to increased mitochondrial parkin levels. Superoxide dismutase 2 (SOD2) was also upregulated by NEAT1v1, and GABARAP or SOD2 knockdown in NEAT1v1-overexpressing cells increased mitochondrial oxidative stress and mitochondrial DNA content after irradiation. Moreover, it was suggested that SOD2 was involved in NEAT1v1-induced parkin expression, and that GABARAP promoted parkin degradation via mitophagy. This study highlights the unprecedented roles of NEAT1v1 in connecting radioresistance and mitophagy in HCC.
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Gallegos-Arreola MP, Ramírez-Patiño R, Sánchez-López JY, Zúñiga-González GM, Figuera LE, Delgado-Saucedo JI, Gómez-Meda BC, Rosales-Reynoso MA, Puebla-Pérez AM, Lemus-Varela ML, Garibaldi-Ríos AF, Marín-Domínguez NA, Pacheco-Verduzco DP, Mohamed-Flores EA. SOD2 Gene Variants (rs4880 and rs5746136) and Their Association with Breast Cancer Risk. Curr Issues Mol Biol 2022; 44:5221-5233. [PMID: 36354667 PMCID: PMC9688594 DOI: 10.3390/cimb44110355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 10/12/2022] [Accepted: 10/22/2022] [Indexed: 11/16/2022] Open
Abstract
The superoxide dismutase (SOD) is the principal antioxidant defense system in the body that is activated by a reactive oxygen species. Some variants of the SOD2 gene have been associated with cancer. The rs4880 variant was determined by PCR real-time and the rs5746136 variant by PCR-RFLP in healthy subjects and in breast cancer (BC) patients. The rs4880 and rs5746136 variants were associated with BC susceptibility when BC patients and the control group were compared for the CT, TT, CTCC, and the T alleles (p < 0.05). The CT genotype of the rs4880 variant showed significant statistical differences in patients and controls aged ≤ 45 years old, and with hormonal consumption (p < 0.05). The rs4880 variant was associated with BC patients with CTTT genotype and obesity, the presence of DM2-SAH, and a non-chemotherapy response (p < 0.05). Additionally, the rs5746136 variant was associated with susceptibility to BC with Ki-67 (≥20%), luminal A type BC, and a chemotherapy partial response (p < 0.05) in BC patients who carry TT, TC, and CTTT genotypes, respectively. The haplotype T/T (OR 1.98; 95% CI 1.20−3.26, p = 0.005) was observed to be a risk factor for BC. The rs4880 and rs5746136 variants in the SOD2 gene were associated with BC susceptibility.
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Affiliation(s)
- Martha P. Gallegos-Arreola
- División de Genética, Centro de Investigación Biomédica de Occidente (CIBO), Instituto Mexicano del Seguro Social (IMSS), 44340 Guadalajara, Mexico
- Correspondence: ; Tel.: +52-33-36170060 (ext. 31936)
| | - Ramiro Ramírez-Patiño
- Departamento de Medicina y Ciencias de la Vida, Centro Universitario la Ciénega, Universidad de Guadalajara, 47810 Ocotlán, Mexico
| | - Josefina Y. Sánchez-López
- División de Genética, Centro de Investigación Biomédica de Occidente (CIBO), Instituto Mexicano del Seguro Social (IMSS), 44340 Guadalajara, Mexico
| | | | - Luis E. Figuera
- División de Genética, Centro de Investigación Biomédica de Occidente (CIBO), Instituto Mexicano del Seguro Social (IMSS), 44340 Guadalajara, Mexico
| | - Jorge I. Delgado-Saucedo
- Laboratorio de Inmunofarmacología, Departamento de Farmacología, Centro Universitario de Ciencias Exactas e Ingenierías, Universidad de Guadalajara, 44100 Guadalajara, Mexico
| | - Belinda C. Gómez-Meda
- Departamento de Biología Molecular y Genómica, Instituto de Genética Humana “Dr. Enrique Corona Rivera”, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, 44100 Guadalajara, Mexico
| | | | - Ana M. Puebla-Pérez
- Laboratorio de Inmunofarmacología, Departamento de Farmacología, Centro Universitario de Ciencias Exactas e Ingenierías, Universidad de Guadalajara, 44100 Guadalajara, Mexico
| | - María L. Lemus-Varela
- Departamento de Neonatología, Hospital de Pediatría, UMAE, CMNO, IMSS, 44340 Guadalajara, Mexico
| | | | - Nayely A. Marín-Domínguez
- División de Genética, Centro de Investigación Biomédica de Occidente (CIBO), Instituto Mexicano del Seguro Social (IMSS), 44340 Guadalajara, Mexico
| | - Diana P. Pacheco-Verduzco
- División de Genética, Centro de Investigación Biomédica de Occidente (CIBO), Instituto Mexicano del Seguro Social (IMSS), 44340 Guadalajara, Mexico
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Zhang Z, Chen Q, Huang C, Rao D, Sang C, Zhu S, Gu L, Xie C, Tang Z, Xu X. Transcription factor Nrf2 binds to circRNAPIBF1 to regulate SOD2 in lung adenocarcinoma progression. Mol Carcinog 2022; 61:1161-1176. [PMID: 36193777 DOI: 10.1002/mc.23468] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 09/07/2022] [Accepted: 09/19/2022] [Indexed: 11/05/2022]
Abstract
Emerging evidence indicates that circular RNAs (circRNAs) play important roles in disease development, especially in cancers. Analysis of circRNA expression microarrays from the Gene Expression Omnibus database revealed that circPIBF1 was highly upregulated in lung adenocarcinoma (LUAD). The main aim of this study was to probe the function of circPIBF1 in pyroptosis of LUAD cells and the signal transduction pathways involved. CircPIBF1 was significantly overexpressed in LUAD and was related to the dismal prognosis of patients with LUAD. CircPIBF1 could bind to nuclear factor erythroid 2-related factor 2 (Nrf2), which further promoted the expression of superoxide dismutase 2 (SOD2). In addition, Nrf2 was also observed to recruit histone acetyltransferase E1A binding protein p300 (EP300) to enhance H3K27ac modification of SOD2, thus modulating the Nrf2-Keap1 signaling pathway. Moreover, we found that knockdown of circPIBF1 significantly suppressed the expression of SOD2 in cells and LUAD cell growth, while enhanced the expression of pyroptosis-related factors, which were further reversed by overexpression of SOD2 or EP300. Collectively, our findings suggest a direct involvement of circPIBF1 in pyroptosis-related LUAD carcinogenesis and implicate a role of Nrf2/EP300/SOD2 signaling in this process.
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Affiliation(s)
- Zuxiong Zhang
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, Fujian, P.R. China.,Department of Thoracic Surgery, First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, P.R. China.,Ganzhou Key Lab of Brain Injury & Brain Protection, Ganzhou, Jiangxi, P.R. China
| | - Qianshun Chen
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, Fujian, P.R. China.,Department of Thoracic Surgery, Fujian Provincial Hospital, Fuzhou, Fujian, P.R. China
| | - Chen Huang
- Department of Thoracic Surgery, Fujian Provincial Hospital, Fuzhou, Fujian, P.R. China
| | - Dingyu Rao
- Department of Thoracic Surgery, First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, P.R. China.,Ganzhou Key Lab of Brain Injury & Brain Protection, Ganzhou, Jiangxi, P.R. China
| | - Chengpeng Sang
- Department of Thoracic Surgery, First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, P.R. China.,Ganzhou Key Lab of Brain Injury & Brain Protection, Ganzhou, Jiangxi, P.R. China
| | - Shenyu Zhu
- Department of Thoracic Surgery, First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, P.R. China.,Ganzhou Key Lab of Brain Injury & Brain Protection, Ganzhou, Jiangxi, P.R. China
| | - Liang Gu
- Department of Thoracic Surgery, First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, P.R. China.,Ganzhou Key Lab of Brain Injury & Brain Protection, Ganzhou, Jiangxi, P.R. China
| | - Chunfa Xie
- Department of Thoracic Surgery, First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, P.R. China.,Ganzhou Key Lab of Brain Injury & Brain Protection, Ganzhou, Jiangxi, P.R. China
| | - Zhixian Tang
- Department of Thoracic Surgery, First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, P.R. China.,Ganzhou Key Lab of Brain Injury & Brain Protection, Ganzhou, Jiangxi, P.R. China
| | - Xunyu Xu
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, Fujian, P.R. China.,Department of Thoracic Surgery, Fujian Provincial Hospital, Fuzhou, Fujian, P.R. China
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Liu L, Yang X, Liao Y, Wang C, Wang Y. Resveratrol alleviates Ang II-induced vascular smooth muscle cell senescence by upregulating E2F1/ SOD2 axis. Toxicol Res (Camb) 2022; 11:831-840. [PMID: 36337239 PMCID: PMC9618109 DOI: 10.1093/toxres/tfac051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 07/06/2022] [Accepted: 07/15/2022] [Indexed: 09/05/2023] Open
Abstract
Background Vascular smooth muscle cells (VSMCs) senescence is a crucial factor relevant to accelerate cardiovascular diseases. Resveratrol (RES) has been reported that could obstruct vascular senescence. However, the detailed molecular mechanisms of RES in VSMCs senescence are still indistinct and deserve further investigations. Methods and Results In this study, VSMCs were treated with 100 nM angiotensin II (Ang II) for 3 days and then followed with a range of different concentrations of RES (0.5, 5, 15, 25, 35, 50 μM), and 25 μM of RES was chose for following experiments. We found that the E2F1 and SOD2 expressions were reduced in Ang II-induced VSMCs. RES treatment impeded Ang II-induced oxidative stress and mitochondrial dysfunction through elevating E2F1 and SOD2 expression, thereby alleviating VSMCs senescence. Additionally, E2F1 knockdown reversed the protective effects of RES on VSMCs senescence caused by Ang II administration. Ch-IP assay and dual luciferase reporter gene assay validated that E2F1 could bind to the promoter region of SOD2. Furthermore, E2F1 or SOD2 overexpression blocked Ang II-induced on VSMCs senescence. Conclusion In conclusion, RES mitigated Ang II-induced VSMCs senescence by suppressing oxidative stress and mitochondrial dysfunction through activating E2F1/SOD2 axis. Our study disclosed that RES might be a potential drug and the axis of its regulatory mechanism might be therapeutic targets for postponing vascular senescence.
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Affiliation(s)
- Lei Liu
- College of Food Science and Technology, Hunan Agricultural University, Changsha, Hunan 410125, China
- Hunan Economic & Trade Senior Technical School, Xiangtan, Hunan 410004, China
| | - Xiuhua Yang
- College of Food Science and Technology, Hunan Agricultural University, Changsha, Hunan 410125, China
- Hunan Economic & Trade Senior Technical School, Xiangtan, Hunan 410004, China
| | - Yiyang Liao
- Hunan Economic & Trade Senior Technical School, Xiangtan, Hunan 410004, China
| | - Chuanhua Wang
- College of Food Science and Technology, Hunan Agricultural University, Changsha, Hunan 410125, China
| | - Yuanliang Wang
- College of Food Science and Technology, Hunan Agricultural University, Changsha, Hunan 410125, China
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Zhang Y, Li Y, Zhou L, Yuan X, Wang Y, Deng Q, Deng Z, Xu S, Wang Q, Xie H, Li J. Nav1.8 in keratinocytes contributes to ROS-mediated inflammation in inflammatory skin diseases. Redox Biol 2022; 55:102427. [PMID: 35952475 PMCID: PMC9372634 DOI: 10.1016/j.redox.2022.102427] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 07/21/2022] [Accepted: 07/30/2022] [Indexed: 11/22/2022] Open
Abstract
Reactive oxygen species (ROS)-activated proinflammatory signals in keratinocytes play a crucial role in the immunoregulation of inflammatory skin diseases, including rosacea and psoriasis. Nav1.8 is a voltage-gated sodium ion channel, and its abnormal expression in the epidermal layer contributes to pain hypersensitivity in the skin. However, whether and how epidermal Nav1.8 is involved in skin immunoregulation remains unclear. This study was performed to identify the therapeutic role of Nav1.8 in inflammatory skin disorders. We found that Nav1.8 expression was significantly upregulated in the epidermis of rosacea and psoriasis skin lesions. Nav1.8 knockdown ameliorated skin inflammation in LL37-and imiquimod-induced inflammation mouse models. Transcriptome sequencing results indicated that Nav1.8 regulated the expression of pro-inflammatory mediators (IL1β and IL6) in keratinocytes, thereby contributing to immune infiltration in inflammatory skin disorders. In vitro, tumor necrosis factor alpha (TNFα), a cytokine that drives the development of various inflammatory skin disorders, increased Nav1.8 expression in keratinocytes. Knockdown of Nav1.8 eliminated excess ROS production, thereby attenuating the TNFα-induced production of inflammatory mediators; however, a Nav1.8 blocker did not have the same effect. Mechanistically, Nav1.8 reduced superoxide dismutase 2 (SOD2) activity by directly binding to SOD2 to prevent its deacetylation and mitochondrial localization, subsequently inducing ROS accumulation. Collectively, our study describes a central role for Nav1.8 in regulating pro-inflammatory responses in the skin and indicates a novel therapeutic strategy for rosacea and psoriasis.
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Affiliation(s)
- Yiya Zhang
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China; Hunan Key Laboratory of Aging Biology, Xiangya Hospital, Central South University, Changsha, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Yangfan Li
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China; Hunan Key Laboratory of Aging Biology, Xiangya Hospital, Central South University, Changsha, China
| | - Lei Zhou
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China; Hunan Key Laboratory of Aging Biology, Xiangya Hospital, Central South University, Changsha, China
| | - Xin Yuan
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China; Hunan Key Laboratory of Aging Biology, Xiangya Hospital, Central South University, Changsha, China
| | - Yaling Wang
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China; Hunan Key Laboratory of Aging Biology, Xiangya Hospital, Central South University, Changsha, China
| | - Qing Deng
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China; Hunan Key Laboratory of Aging Biology, Xiangya Hospital, Central South University, Changsha, China
| | - Zhili Deng
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China; Hunan Key Laboratory of Aging Biology, Xiangya Hospital, Central South University, Changsha, China
| | - San Xu
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China; Hunan Key Laboratory of Aging Biology, Xiangya Hospital, Central South University, Changsha, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Qian Wang
- Hunan Binsis Biotechnology Co., Ltd, Changsha, China
| | - Hongfu Xie
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China; Hunan Key Laboratory of Aging Biology, Xiangya Hospital, Central South University, Changsha, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Ji Li
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China; Hunan Key Laboratory of Aging Biology, Xiangya Hospital, Central South University, Changsha, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China.
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48
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Baier MP, Nagaraja RY, Yarbrough HP, Owen DB, Masingale AM, Ranjit R, Stiles MA, Murphy A, Agbaga MP, Ahmad M, Sherry DM, Kinter MT, Van Remmen H, Logan S. Selective Ablation of Sod2 in Astrocytes Induces Sex-Specific Effects on Cognitive Function, d-Serine Availability, and Astrogliosis. J Neurosci 2022; 42:5992-6006. [PMID: 35760531 PMCID: PMC9351643 DOI: 10.1523/jneurosci.2543-21.2022] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 06/10/2022] [Accepted: 06/15/2022] [Indexed: 02/05/2023] Open
Abstract
Cognitive decline is a debilitating aspect of aging and neurodegenerative diseases such as Alzheimer's disease are closely associated with mitochondrial dysfunction, increased reactive oxygen species, neuroinflammation, and astrogliosis. This study investigated the effects of decreased mitochondrial antioxidant response specifically in astrocytes on cognitive performance and neuronal function in C57BL/6J mice using a tamoxifen-inducible astrocyte-specific knockout of manganese superoxide dismutase (aSOD2-KO), a mitochondrial matrix antioxidant that detoxifies superoxide generated during mitochondrial respiration. We reduced astrocyte SOD2 levels in male and female mice at 11-12 months of age and tested in an automated home cage (PhenoTyper) apparatus for diurnal patterns, spatial learning, and memory function at 15 months of age. aSOD2-KO impaired hippocampal-dependent spatial working memory and decreased cognitive flexibility in the reversal phase of the testing paradigm in males. Female aSOD2-KO showed no learning and memory deficits compared with age-matched controls despite significant reduction in hippocampal SOD2 expression. aSOD2-KO males further showed decreased hippocampal long-term potentiation, but paired-pulse facilitation was unaffected. Levels of d-serine, an NMDA receptor coagonist, were also reduced in aSOD2-KO mice, but female knockouts showed a compensatory increase in serine racemase expression. Furthermore, aSOD2-KO mice demonstrated increased density of astrocytes, indicative of astrogliosis, in the hippocampus compared with age-matched controls. These data demonstrate that reduction in mitochondrial antioxidant stress response in astrocytes recapitulates age-related deficits in cognitive function, d-serine availability, and astrogliosis. Therefore, improving astrocyte mitochondrial homeostasis may provide a therapeutic target for intervention for cognitive impairment in aging.SIGNIFICANCE STATEMENT Diminished antioxidant response is associated with increased astrogliosis in aging and in Alzheimer's disease. Manganese superoxide dismutase (SOD2) is an antioxidant in the mitochondrial matrix that detoxifies superoxide and maintains mitochondrial homeostasis. We show that astrocytic ablation of SOD2 impairs hippocampal-dependent plasticity in spatial working memory, reduces long-term potentiation of hippocampal neurons and levels of the neuromodulator d-serine, and increases astrogliosis, consistent with defects in advanced aging and Alzheimer's disease. Our data provide strong evidence for sex-specific effects of astrocytic SOD2 functions in age-related cognitive dysfunction.
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Affiliation(s)
- Matthew P Baier
- Center for Geroscience and Healthy Brain Aging, Department of Biochemistry and Molecular Biology, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma 73104
| | - Raghavendra Y Nagaraja
- Department of Cell Biology, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma 73104
| | - Hannah P Yarbrough
- Center for Geroscience and Healthy Brain Aging, Department of Biochemistry and Molecular Biology, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma 73104
| | - Daniel B Owen
- Center for Geroscience and Healthy Brain Aging, Department of Biochemistry and Molecular Biology, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma 73104
| | - Anthony M Masingale
- Department of Rehabilitation Sciences, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma 73104
| | - Rojina Ranjit
- Center for Geroscience and Healthy Brain Aging, Department of Biochemistry and Molecular Biology, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma 73104
| | - Megan A Stiles
- Department of Cell Biology, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma 73104
| | - Ashley Murphy
- Aging & Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma 73104
| | - Martin-Paul Agbaga
- Department of Cell Biology, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma 73104
- Department of Ophthalmology, Dean McGee Eye Institute, Oklahoma City, Oklahoma 73104
- Neuroscience Program, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma 73104
| | - Mohiuddin Ahmad
- Department of Cell Biology, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma 73104
| | - David M Sherry
- Department of Cell Biology, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma 73104
- Department of Pharmaceutical Sciences, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma 73104
- Neuroscience Program, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma 73104
| | - Michael T Kinter
- Aging & Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma 73104
| | - Holly Van Remmen
- Aging & Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma 73104
- Neuroscience Program, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma 73104
- VA Oklahoma City Medical Center, Oklahoma City, Oklahoma 73104
| | - Sreemathi Logan
- Center for Geroscience and Healthy Brain Aging, Department of Biochemistry and Molecular Biology, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma 73104
- Department of Rehabilitation Sciences, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma 73104
- Neuroscience Program, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma 73104
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Jiang C, Ward NP, Prieto-Farigua N, Kang YP, Thalakola A, Teng M, DeNicola GM. A CRISPR screen identifies redox vulnerabilities for KEAP1/NRF2 mutant non-small cell lung cancer. Redox Biol 2022; 54:102358. [PMID: 35667246 PMCID: PMC9168196 DOI: 10.1016/j.redox.2022.102358] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 05/17/2022] [Accepted: 05/30/2022] [Indexed: 12/02/2022] Open
Abstract
The redox regulator NRF2 is hyperactivated in a large percentage of non-small cell lung cancer (NSCLC) cases, which is associated with chemotherapy and radiation resistance. To identify redox vulnerabilities for KEAP1/NRF2 mutant NSCLC, we conducted a CRISPR-Cas9-based negative selection screen for antioxidant enzyme genes whose loss sensitized cells to sub-lethal concentrations of the superoxide (O2•-) -generating drug β-Lapachone. While our screen identified expected hits in the pentose phosphate pathway, the thioredoxin-dependent antioxidant system, and glutathione reductase, we also identified the mitochondrial superoxide dismutase 2 (SOD2) as one of the top hits. Surprisingly, β-Lapachone did not generate mitochondrial O2•- but rather SOD2 loss enhanced the efficacy of β-Lapachone due to loss of iron-sulfur protein function, loss of mitochondrial ATP maintenance and deficient NADPH production. Importantly, inhibition of mitochondrial electron transport activity sensitized cells to β-Lapachone, demonstrating that these effects may be translated to increase ROS sensitivity therapeutically.
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Affiliation(s)
- Chang Jiang
- Department of Cancer Physiology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, 33612, USA.
| | - Nathan P Ward
- Department of Cancer Physiology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, 33612, USA
| | - Nicolas Prieto-Farigua
- Department of Cancer Physiology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, 33612, USA
| | - Yun Pyo Kang
- Department of Cancer Physiology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, 33612, USA
| | - Anish Thalakola
- Department of Cancer Physiology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, 33612, USA
| | - Mingxiang Teng
- Department of Biostatistics and Bioinformatics, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, 33612, USA
| | - Gina M DeNicola
- Department of Cancer Physiology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, 33612, USA.
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Coelho DR, Palma FR, Paviani V, He C, Danes JM, Huang Y, Calado JCP, Hart PC, Furdui CM, Poole LB, Schipma MJ, Bonini MG. Nuclear-localized, iron-bound superoxide dismutase-2 antagonizes epithelial lineage programs to promote stemness of breast cancer cells via a histone demethylase activity. Proc Natl Acad Sci U S A 2022; 119:e2110348119. [PMID: 35858297 PMCID: PMC9303987 DOI: 10.1073/pnas.2110348119] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 03/27/2022] [Indexed: 01/16/2023] Open
Abstract
The dichotomous behavior of superoxide dismutase-2 (SOD2) in cancer biology has long been acknowledged and more recently linked to different posttranslational forms of the enzyme. However, a distinctive activity underlying its tumor-promoting function is yet to be described. Here, we report that acetylation, one of such posttranslational modifications (PTMs), increases SOD2 affinity for iron, effectively changing the biochemical function of this enzyme from that of an antioxidant to a demethylase. Acetylated, iron-bound SOD2 localizes to the nucleus, promoting stem cell gene expression via removal of suppressive epigenetic marks such as H3K9me3 and H3K927me3. Particularly, H3K9me3 was specifically removed from regulatory regions upstream of Nanog and Oct-4, two pluripotency factors involved in cancer stem cell reprogramming. Phenotypically, cells expressing nucleus-targeted SOD2 (NLS-SOD2) have increased clonogenicity and metastatic potential. FeSOD2 operating as H3 demethylase requires H2O2 as substrate, which unlike cofactors of canonical demethylases (i.e., oxygen and 2-oxoglutarate), is more abundant in tumor cells than in normal tissue. Therefore, our results indicate that FeSOD2 is a demethylase with unique activities and functions in the promotion of cancer evolution toward metastatic phenotypes.
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Affiliation(s)
- Diego R. Coelho
- Department of Medicine, Division of Hematology Oncology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611
- Robert H. Lurie Comprehensive Cancer Center, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611
| | - Flavio R. Palma
- Department of Medicine, Division of Hematology Oncology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611
- Robert H. Lurie Comprehensive Cancer Center, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611
| | - Veronica Paviani
- Department of Medicine, Division of Hematology Oncology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611
- Robert H. Lurie Comprehensive Cancer Center, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611
| | - Chenxia He
- Department of Medicine, Division of Endocrinology, Metabolism and Molecular Medicine, Medical College of Wisconsin, Milwaukee, WI 53226
| | - Jeanne M. Danes
- Department of Medicine, Division of Hematology Oncology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611
- Robert H. Lurie Comprehensive Cancer Center, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611
| | - Yunping Huang
- Department of Medicine, Division of Hematology Oncology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611
- Robert H. Lurie Comprehensive Cancer Center, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611
| | - Juliana C. P. Calado
- Department of Medicine, Division of Hematology Oncology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611
- Robert H. Lurie Comprehensive Cancer Center, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611
| | - Peter C. Hart
- College of Science, Health and Pharmacy, Roosevelt University, Schaumburg, IL 60173
| | - Cristina M. Furdui
- Department of Internal Medicine, Section on Molecular Medicine, Wake Forest School of Medicine, Winston-Salem, NC 27157
| | - Leslie B. Poole
- Department of Biochemistry, Section on Molecular Medicine, Wake Forest School of Medicine, Winston-Salem, NC 27157
| | - Matthew J. Schipma
- Robert H. Lurie Comprehensive Cancer Center, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611
- Quantitative Data Sciences Core and Department of Biochemistry and Molecular Genetics, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611
| | - Marcelo G. Bonini
- Department of Medicine, Division of Hematology Oncology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611
- Robert H. Lurie Comprehensive Cancer Center, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611
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