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Shouman S, El-Kholy N, Hussien AE, El-Derby AM, Magdy S, Abou-Shanab AM, Elmehrath AO, Abdelwaly A, Helal M, El-Badri N. SARS-CoV-2-associated lymphopenia: possible mechanisms and the role of CD147. Cell Commun Signal 2024; 22:349. [PMID: 38965547 PMCID: PMC11223399 DOI: 10.1186/s12964-024-01718-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2024] [Accepted: 06/15/2024] [Indexed: 07/06/2024] Open
Abstract
T lymphocytes play a primary role in the adaptive antiviral immunity. Both lymphocytosis and lymphopenia were found to be associated with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). While lymphocytosis indicates an active anti-viral response, lymphopenia is a sign of poor prognosis. T-cells, in essence, rarely express ACE2 receptors, making the cause of cell depletion enigmatic. Moreover, emerging strains posed an immunological challenge, potentially alarming for the next pandemic. Herein, we review how possible indirect and direct key mechanisms could contribute to SARS-CoV-2-associated-lymphopenia. The fundamental mechanism is the inflammatory cytokine storm elicited by viral infection, which alters the host cell metabolism into a more acidic state. This "hyperlactic acidemia" together with the cytokine storm suppresses T-cell proliferation and triggers intrinsic/extrinsic apoptosis. SARS-CoV-2 infection also results in a shift from steady-state hematopoiesis to stress hematopoiesis. Even with low ACE2 expression, the presence of cholesterol-rich lipid rafts on activated T-cells may enhance viral entry and syncytia formation. Finally, direct viral infection of lymphocytes may indicate the participation of other receptors or auxiliary proteins on T-cells, that can work alone or in concert with other mechanisms. Therefore, we address the role of CD147-a novel route-for SARS-CoV-2 and its new variants. CD147 is not only expressed on T-cells, but it also interacts with other co-partners to orchestrate various biological processes. Given these features, CD147 is an appealing candidate for viral pathogenicity. Understanding the molecular and cellular mechanisms behind SARS-CoV-2-associated-lymphopenia will aid in the discovery of potential therapeutic targets to improve the resilience of our immune system against this rapidly evolving virus.
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Affiliation(s)
- Shaimaa Shouman
- Center of Excellence for Stem Cells and Regenerative Medicine, Zewail City of Science and Technology, Giza, 12587, Egypt
- Biomedical Sciences Program, University of Science and Technology, Zewail City of Science and Technology, Giza, 12587, Egypt
| | - Nada El-Kholy
- Department of Drug Discovery, H. Lee Moffit Cancer Center& Research Institute, Tampa, FL, 33612, USA
- Cancer Chemical Biology Ph.D. Program, University of South Florida, Tampa, FL, 33620, USA
| | - Alaa E Hussien
- Center of Excellence for Stem Cells and Regenerative Medicine, Zewail City of Science and Technology, Giza, 12587, Egypt
- Biomedical Sciences Program, University of Science and Technology, Zewail City of Science and Technology, Giza, 12587, Egypt
| | - Azza M El-Derby
- Center of Excellence for Stem Cells and Regenerative Medicine, Zewail City of Science and Technology, Giza, 12587, Egypt
- Biomedical Sciences Program, University of Science and Technology, Zewail City of Science and Technology, Giza, 12587, Egypt
| | - Shireen Magdy
- Center of Excellence for Stem Cells and Regenerative Medicine, Zewail City of Science and Technology, Giza, 12587, Egypt
- Biomedical Sciences Program, University of Science and Technology, Zewail City of Science and Technology, Giza, 12587, Egypt
| | - Ahmed M Abou-Shanab
- Center of Excellence for Stem Cells and Regenerative Medicine, Zewail City of Science and Technology, Giza, 12587, Egypt
- Biomedical Sciences Program, University of Science and Technology, Zewail City of Science and Technology, Giza, 12587, Egypt
| | | | - Ahmad Abdelwaly
- Biomedical Sciences Program, University of Science and Technology, Zewail City of Science and Technology, Giza, 12587, Egypt
- Institute for Computational Molecular Science, Department of Chemistry, Temple University, Philadelphia, PA, 19122, USA
| | - Mohamed Helal
- Biomedical Sciences Program, University of Science and Technology, Zewail City of Science and Technology, Giza, 12587, Egypt
- Medicinal Chemistry Department, Faculty of Pharmacy, Suez Canal University, Ismailia, 41522, Egypt
| | - Nagwa El-Badri
- Center of Excellence for Stem Cells and Regenerative Medicine, Zewail City of Science and Technology, Giza, 12587, Egypt.
- Biomedical Sciences Program, University of Science and Technology, Zewail City of Science and Technology, Giza, 12587, Egypt.
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Vinhas M, Leitão PM, Raimundo BS, Gil N, Vaz PD, Luis-Ferreira F. AI Applied to Volatile Organic Compound (VOC) Profiles from Exhaled Breath Air for Early Detection of Lung Cancer. Cancers (Basel) 2024; 16:2200. [PMID: 38927906 PMCID: PMC11201396 DOI: 10.3390/cancers16122200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2024] [Revised: 06/05/2024] [Accepted: 06/10/2024] [Indexed: 06/28/2024] Open
Abstract
Volatile organic compounds (VOCs) are an increasingly meaningful method for the early detection of various types of cancers, including lung cancer, through non-invasive methods. Traditional cancer detection techniques such as biopsies, imaging, and blood tests, though effective, often involve invasive procedures or are costly, time consuming, and painful. Recent advancements in technology have led to the exploration of VOC detection as a promising non-invasive and comfortable alternative. VOCs are organic chemicals that have a high vapor pressure at room temperature, making them readily detectable in breath, urine, and skin. The present study leverages artificial intelligence (AI) and machine learning algorithms to enhance classification accuracy and efficiency in detecting lung cancer through VOC analysis collected from exhaled breath air. Unlike other studies that primarily focus on identifying specific compounds, this study takes an agnostic approach, maximizing detection efficiency over the identification of specific compounds focusing on the overall compositional profiles and their differences across groups of patients. The results reported hereby uphold the potential of AI-driven techniques in revolutionizing early cancer detection methodologies towards their implementation in a clinical setting.
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Affiliation(s)
- Manuel Vinhas
- Departamento de Engenharia Electrotécnica e de Computadores, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Monte da Caparica, Portugal;
| | - Pedro M. Leitão
- Unidade de Pulmão, Centro Clínico Champalimaud, Fundação Champalimaud, Av. Brasília, 1400-038 Lisbon, Portugal; (P.M.L.); (B.S.R.); (N.G.)
| | - Bernardo S. Raimundo
- Unidade de Pulmão, Centro Clínico Champalimaud, Fundação Champalimaud, Av. Brasília, 1400-038 Lisbon, Portugal; (P.M.L.); (B.S.R.); (N.G.)
| | - Nuno Gil
- Unidade de Pulmão, Centro Clínico Champalimaud, Fundação Champalimaud, Av. Brasília, 1400-038 Lisbon, Portugal; (P.M.L.); (B.S.R.); (N.G.)
| | - Pedro D. Vaz
- Unidade de Pulmão, Centro Clínico Champalimaud, Fundação Champalimaud, Av. Brasília, 1400-038 Lisbon, Portugal; (P.M.L.); (B.S.R.); (N.G.)
| | - Fernando Luis-Ferreira
- Departamento de Engenharia Electrotécnica e de Computadores, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Monte da Caparica, Portugal;
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Kang S, Ko EY, Andrews AE, Shin JE, Nance KJ, Barman PK, Heeger PS, Freeman WM, Benayoun BA, Goodridge HS. Microglia undergo sex-dimorphic transcriptional and metabolic rewiring during aging. J Neuroinflammation 2024; 21:150. [PMID: 38840206 PMCID: PMC11155174 DOI: 10.1186/s12974-024-03130-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Accepted: 05/13/2024] [Indexed: 06/07/2024] Open
Abstract
Microglia, the brain's resident macrophages, maintain brain homeostasis and respond to injury and infection. During aging they undergo functional changes, but the underlying mechanisms and their contributions to neuroprotection versus neurodegeneration are unclear. Previous studies suggested that microglia are sex dimorphic, so we compared microglial aging in mice of both sexes. RNA-sequencing of hippocampal microglia revealed more aging-associated changes in female microglia than male microglia, and more sex differences in old microglia than young microglia. Pathway analyses and subsequent validation assays revealed a stronger AKT-mTOR-HIF1α-driven shift to glycolysis among old female microglia and indicated that C3a production and detection was elevated in old microglia, especially in females. Recombinant C3a induced AKT-mTOR-HIF1α signaling and increased the glycolytic and phagocytic activity of young microglia. Single cell analyses attributed the aging-associated sex dimorphism to more abundant disease-associated microglia (DAM) in old female mice than old male mice, and evaluation of an Alzheimer's Disease mouse model revealed that the metabolic and complement changes are also apparent in the context of neurodegenerative disease and are strongest in the neuroprotective DAM2 subset. Collectively, our data implicate autocrine C3a-C3aR signaling in metabolic reprogramming of microglia to neuroprotective DAM during aging, especially in females, and also in Alzheimer's Disease.
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Affiliation(s)
- Seokjo Kang
- Board of Governors Regenerative Medicine Institute, Cedars-Sinai Medical Center, Los Angeles, CA, 90048, USA
- Research Division of Immunology in the Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, 90048, USA
| | - Emily Y Ko
- Board of Governors Regenerative Medicine Institute, Cedars-Sinai Medical Center, Los Angeles, CA, 90048, USA
- Research Division of Immunology in the Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, 90048, USA
| | - Amelia E Andrews
- Board of Governors Regenerative Medicine Institute, Cedars-Sinai Medical Center, Los Angeles, CA, 90048, USA
- Research Division of Immunology in the Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, 90048, USA
| | - Juliana E Shin
- Board of Governors Regenerative Medicine Institute, Cedars-Sinai Medical Center, Los Angeles, CA, 90048, USA
- Research Division of Immunology in the Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, 90048, USA
| | - Karina J Nance
- Board of Governors Regenerative Medicine Institute, Cedars-Sinai Medical Center, Los Angeles, CA, 90048, USA
- Research Division of Immunology in the Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, 90048, USA
| | - Pijus K Barman
- Board of Governors Regenerative Medicine Institute, Cedars-Sinai Medical Center, Los Angeles, CA, 90048, USA
- Research Division of Immunology in the Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, 90048, USA
| | - Peter S Heeger
- Research Division of Immunology in the Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, 90048, USA
- Comprehensive Transplant Center, Cedars-Sinai Medical Center, Los Angeles, CA, 90048, USA
| | - Willard M Freeman
- Genes & Human Disease Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, 73104, USA
- Oklahoma City Veterans Affairs Medical Center, Oklahoma City, OK, 73104, USA
- Department of Biochemistry and Molecular Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA
| | - Bérénice A Benayoun
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA, 90089, USA
- Molecular and Computational Biology Department, Arts and Sciences, USC Dornsife College of Letters, University of Southern California, Los Angeles, CA, 90089, USA
- Biochemistry and Molecular Medicine Department, USC Keck School of Medicine, University of Southern California, Los Angeles, CA, 90089, USA
| | - Helen S Goodridge
- Board of Governors Regenerative Medicine Institute, Cedars-Sinai Medical Center, Los Angeles, CA, 90048, USA.
- Research Division of Immunology in the Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, 90048, USA.
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Wang J, Li J, Yin L, Wang X, Dong Y, Zhao G, Shen S, Hou Y. MSCs promote the efferocytosis of large peritoneal macrophages to eliminate ferroptotic monocytes/macrophages in the injured endometria. Stem Cell Res Ther 2024; 15:127. [PMID: 38693589 PMCID: PMC11064342 DOI: 10.1186/s13287-024-03742-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Accepted: 04/23/2024] [Indexed: 05/03/2024] Open
Abstract
BACKGROUND Endometria are one of the important components of the uterus, which is located in the peritoneal cavity. Endometrial injury usually leads to intrauterine adhesions (IUA), accompanied by inflammation and cell death. We previously reported that both the endometrial ferroptosis was increased and monocytes/macrophages were involved in endometrial injury of IUA. Large peritoneal macrophages (LPMs) are recently reported to migrate into the injured tissues and phagocytose dead cells to repair the tissues. We previously demonstrated that mesenchymal stromal cells (MSCs) had made excellent progress in the repair of endometrial injury. However, it is unclear whether MSCs regulate the LPM efferocytosis against ferroptotic monocytes/macrophages in the injured endometria. METHODS Here, endometrial injury in IUA mouse model was conducted by uterine curettage and LPS injection surgery and the samples were collected at different times to detect the changes of LPMs and ferroptotic monocytes/macrophages. We conducted LPMs depletion assay in vivo and LPMs and Erastin-induced ferroptotic THP-1 cells coculture systems in vitro to detect the LPM efferocytosis against ferroptotic monocytes/macrophages. The IUA model was treated with MSCs, and their effects on LPMs and endometrial repair were analyzed. Flow cytometry, western blotting, quantitative real-time PCR, immunohistochemical analysis, ELISA, and RNA-sequencing were performed. RESULTS We found that LPMs migrated to the injured uteri in response to the damage in early phase (3 h), and sustained to a later stage (7 days). Astonishingly, we found that ferroptotic monocytes/macrophages were significantly increased in the injured uteri since 12 h after injury. Moreover, LPMs cocultured with Erastin-induced ferroptotic THP-1 cells in vitro, efferocytosis of LPMs against ferroptotic monocytes/macrophages was emerged. The mRNA expression profiles revealed that LPM efferocytosis against ferroptotic monocytes/macrophages was an induction of glycolysis program and depended on the PPARγ-HK2 pathway. Importantly, we validated that MSCs promoted the efferocytic capability and migration of LPMs to the injured uteri via secreting stanniocalcin-1 (STC-1). CONCLUSION The data collectively demonstrated first the roles of LPMs via removal of ferroptotic monocytes/macrophages and provided a novel mechanism of MSCs in repairing the endometrial injury.
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Affiliation(s)
- Jiali Wang
- The State Key Laboratory of Pharmaceutical Biotechnology, Division of Immunology, Medical School, Nanjing University, No. 22 Hankou Rd., Gulou District, Nanjing, Jiangsu, 210093, People's Republic of China
| | - Jingman Li
- The State Key Laboratory of Pharmaceutical Biotechnology, Division of Immunology, Medical School, Nanjing University, No. 22 Hankou Rd., Gulou District, Nanjing, Jiangsu, 210093, People's Republic of China
| | - Lijie Yin
- The State Key Laboratory of Pharmaceutical Biotechnology, Division of Immunology, Medical School, Nanjing University, No. 22 Hankou Rd., Gulou District, Nanjing, Jiangsu, 210093, People's Republic of China
| | - Xiuzhu Wang
- The State Key Laboratory of Pharmaceutical Biotechnology, Division of Immunology, Medical School, Nanjing University, No. 22 Hankou Rd., Gulou District, Nanjing, Jiangsu, 210093, People's Republic of China
| | - Yue Dong
- The State Key Laboratory of Pharmaceutical Biotechnology, Division of Immunology, Medical School, Nanjing University, No. 22 Hankou Rd., Gulou District, Nanjing, Jiangsu, 210093, People's Republic of China
| | - Guangfeng Zhao
- Department of Obstetrics and Gynecology, Affiliated Hospital of Medical School, Nanjing Drum Tower Hospital, Nanjing University, Nanjing, China
| | - Sunan Shen
- The State Key Laboratory of Pharmaceutical Biotechnology, Division of Immunology, Medical School, Nanjing University, No. 22 Hankou Rd., Gulou District, Nanjing, Jiangsu, 210093, People's Republic of China.
- Jiangsu Key Laboratory of Molecular Medicine, Medical School, Nanjing University, Nanjing, 210093, China.
| | - Yayi Hou
- The State Key Laboratory of Pharmaceutical Biotechnology, Division of Immunology, Medical School, Nanjing University, No. 22 Hankou Rd., Gulou District, Nanjing, Jiangsu, 210093, People's Republic of China.
- Jiangsu Key Laboratory of Molecular Medicine, Medical School, Nanjing University, Nanjing, 210093, China.
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Wen J, Zhang J, Zhang H, Zhang N, Lei R, Deng Y, Cheng Q, Li H, Luo P. Large-scale genome-wide association studies reveal the genetic causal etiology between air pollutants and autoimmune diseases. J Transl Med 2024; 22:392. [PMID: 38685026 PMCID: PMC11057084 DOI: 10.1186/s12967-024-04928-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 01/23/2024] [Indexed: 05/02/2024] Open
Abstract
BACKGROUND Epidemiological evidence links a close correlation between long-term exposure to air pollutants and autoimmune diseases, while the causality remained unknown. METHODS Two-sample Mendelian randomization (TSMR) was used to investigate the role of PM10, PM2.5, NO2, and NOX (N = 423,796-456,380) in 15 autoimmune diseases (N = 14,890-314,995) using data from large European GWASs including UKB, FINNGEN, IMSGC, and IPSCSG. Multivariable Mendelian randomization (MVMR) was conducted to investigate the direct effect of each air pollutant and the mediating role of common factors, including body mass index (BMI), alcohol consumption, smoking status, and household income. Transcriptome-wide association studies (TWAS), two-step MR, and colocalization analyses were performed to explore underlying mechanisms between air pollution and autoimmune diseases. RESULTS In TSMR, after correction of multiple testing, hypothyroidism was causally associated with higher exposure to NO2 [odds ratio (OR): 1.37, p = 9.08 × 10-4] and NOX [OR: 1.34, p = 2.86 × 10-3], ulcerative colitis (UC) was causally associated with higher exposure to NOX [OR: 2.24, p = 1.23 × 10-2] and PM2.5 [OR: 2.60, p = 5.96 × 10-3], rheumatoid arthritis was causally associated with higher exposure to NOX [OR: 1.72, p = 1.50 × 10-2], systemic lupus erythematosus was causally associated with higher exposure to NOX [OR: 4.92, p = 6.89 × 10-3], celiac disease was causally associated with lower exposure to NOX [OR: 0.14, p = 6.74 × 10-4] and PM2.5 [OR: 0.17, p = 3.18 × 10-3]. The risky effects of PM2.5 on UC remained significant in MVMR analyses after adjusting for other air pollutants. MVMR revealed several common mediators between air pollutants and autoimmune diseases. Transcriptional analysis identified specific gene transcripts and pathways interconnecting air pollutants and autoimmune diseases. Two-step MR revealed that POR, HSPA1B, and BRD2 might mediate from air pollutants to autoimmune diseases. POR pQTL (rs59882870, PPH4=1.00) strongly colocalized with autoimmune diseases. CONCLUSION This research underscores the necessity of rigorous air pollutant surveillance within public health studies to curb the prevalence of autoimmune diseases.
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Affiliation(s)
- Jie Wen
- The Animal Laboratory Center, Hunan Cancer Hospital, and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China
- Hypothalamic Pituitary Research Centre, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Jingwei Zhang
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China
- Hypothalamic Pituitary Research Centre, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Hao Zhang
- Department of Neurosurgery, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Nan Zhang
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China
| | - Ruoyan Lei
- Xiangya School of Medicine, Central South University, Changsha, China
| | - Yujia Deng
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China
- First Clinical Department, Changsha Medical University, Changsha, China
| | - Quan Cheng
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China.
- Hypothalamic Pituitary Research Centre, Xiangya Hospital, Central South University, Changsha, China.
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China.
| | - He Li
- The Animal Laboratory Center, Hunan Cancer Hospital, and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.
| | - Peng Luo
- Department of Oncology, Zhujiang Hospital, Southern Medical University, Guangzhou, China.
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Liu T, Zhuang XX, Tang YY, Gao YC, Gao JR. Mechanistic insights into Qiteng Xiaozhuo Granules' regulation of autophagy for chronic glomerulonephritis treatment: Serum pharmacochemistry, network pharmacology, and experimental validation. JOURNAL OF ETHNOPHARMACOLOGY 2024; 324:117819. [PMID: 38286158 DOI: 10.1016/j.jep.2024.117819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 01/13/2024] [Accepted: 01/22/2024] [Indexed: 01/31/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Qiteng Xiaozhuo Granules (QTXZG), a traditional Chinese medicine prescription, is widely acknowledged for its therapeutic efficacy and lack of discernible toxicity in clinical practice, substantiating its potential in the treatment of chronic glomerulonephritis (CGN). Nevertheless, the specific effectiveness and underlying mechanisms of QTXZG remain insufficiently explored. AIM OF THE STUDY The purpose of this study was to explore the mechanism of the QTXZG in the treatment of CGN via targeting autophagy based on serum pharmacochemistry, network pharmacology, and experimental validation. METHODS Serum samples from SD rats orally administered QTXZG were analyzed using UPLC-QE/MS to identify contained compounds. Network and functional enrichment analyses elucidated QTXZG's targets and biological mechanisms. Reliability was ensured through molecular docking, in vivo and in vitro experiments. RESULTS After oral administration of QTXZG, 39 enriched compounds in serum samples collected 1 h later were identified as potential active agents, with 508 potential targets recognized as QTXZG-specific targets. Through integration of various databases, intersection analysis of QTXZG targets, CGN-related genes, and autophagy-related targets identified 10 core autophagy-related targets for QTXZG in CGN. GO and KEGG analyses emphasized their roles in autophagy, inflammation, and immune processes, particularly emphasizing the enrichment of the AMPK/mTOR signaling pathway. Molecular docking results demonstrated strong binding affinities between QTXZG's key compounds and the predicted core targets. In animal experiments, QTXZG was found to ameliorate renal tissue damage in CGN model mice, significantly reducing serum creatinine (Scr) and blood urea nitrogen (BUN) levels. Importantly, both animal and cell experiments revealed QTXZG's ability to decrease excessive ROS and inflammatory factor release in mesangial cells. Furthermore, in vitro and in vivo experiments confirmed QTXZG's capacity to upregulate Beclin1 and LC3II/I expression, decrease p62 expression, and induce CGN autophagy through modulation of the AMPK/mTOR pathway. CONCLUSIONS This study indicated that QTXZG can induce autophagy in CGN by affecting the AMPK/mTOR pathway, and induction of autophagy may be one of the possible mechanisms of QTXZG's anti-CGN.
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Affiliation(s)
- Tao Liu
- Department of Pharmacy, The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, 230012, Anhui, China; College of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230011, Anhui, China.
| | - Xing Xing Zhuang
- Department of Pharmacy, Chaohu Hospital of Anhui Medical University, Chaohu, 238000, Anhui, China.
| | - Yong Yan Tang
- Department of Pharmacy, The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, 230012, Anhui, China; College of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230011, Anhui, China.
| | - Ya Chen Gao
- Nephrology, The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, 230012, Anhui, China.
| | - Jia Rong Gao
- Department of Pharmacy, The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, 230012, Anhui, China.
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Young AP, Denovan-Wright EM. JAK1/2 Regulates Synergy Between Interferon Gamma and Lipopolysaccharides in Microglia. J Neuroimmune Pharmacol 2024; 19:14. [PMID: 38642237 DOI: 10.1007/s11481-024-10115-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 04/01/2024] [Indexed: 04/22/2024]
Abstract
Microglia, the resident immune cells of the brain, regulate neuroinflammation which can lead to secondary neuronal damage and cognitive impairment under pathological conditions. Two of the many molecules that can elicit an inflammatory response from microglia are lipopolysaccharide (LPS), a component of gram-negative bacteria, and interferon gamma (IFNγ), an endogenous pro-inflammatory cytokine. We thoroughly examined the concentration-dependent relationship between LPS from multiple bacterial species and IFNγ in cultured microglia and macrophages. We measured the effects that these immunostimulatory molecules have on pro-inflammatory activity of microglia and used a battery of signaling inhibitors to identify the pathways that contribute to the microglial response. We found that LPS and IFNγ interacted synergistically to induce a pro-inflammatory phenotype in microglia, and that inhibition of JAK1/2 completely blunted the response. We determined that this synergistic action of LPS and IFNγ was likely dependent on JNK and Akt signaling rather than typical pro-inflammatory mediators such as NF-κB. Finally, we demonstrated that LPS derived from Escherichia coli, Klebsiella pneumoniae, and Akkermansia muciniphila can elicit different inflammatory responses from microglia and macrophages, but these responses could be consistently prevented using ruxolitinib, a JAK1/2 inhibitor. Collectively, this work reveals a mechanism by which microglia may become hyperactivated in response to the combination of LPS and IFNγ. Given that elevations in circulating LPS and IFNγ occur in a wide variety of pathological conditions, it is critical to understand the pharmacological interactions between these molecules to develop safe and effective treatments to suppress this process.
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Affiliation(s)
- Alexander P Young
- Department of Pharmacology, Dalhousie University, Halifax, NS, Canada.
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He Y, Yang M, Cui J, Zhao C, Jiang B, Guan J, Zhou X, He M, Zhen Y, Zhang Y, Jing R, Wang Q, Qin Y, Wu L. Non-invasive diagnosis of bacterial and non-bacterial inflammations using a dual-enzyme-responsive fluorescent indicator. Chem Sci 2024; 15:5775-5785. [PMID: 38638235 PMCID: PMC11023053 DOI: 10.1039/d3sc06866h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Accepted: 03/15/2024] [Indexed: 04/20/2024] Open
Abstract
Bacterial infections, as the second leading cause of global death, are commonly treated with antibiotics. However, the improper use of antibiotics contributes to the development of bacterial resistance. Therefore, the accurate differentiation between bacterial and non-bacterial inflammations is of utmost importance in the judicious administration of clinical antibiotics and the prevention of bacterial resistance. However, as of now, no fluorescent probes have yet been designed for the relevant assessments. To this end, the present study reports the development of a novel fluorescence probe (CyQ) that exhibits dual-enzyme responsiveness. The designed probe demonstrated excellent sensitivity in detecting NTR and NAD(P)H, which served as critical indicators for bacterial and non-bacterial inflammations. The utilization of CyQ enabled the efficient detection of NTR and NAD(P)H in distinct channels, exhibiting impressive detection limits of 0.26 μg mL-1 for NTR and 5.54 μM for NAD(P)H, respectively. Experimental trials conducted on living cells demonstrated CyQ's ability to differentiate the variations in NTR and NAD(P)H levels between A. baumannii, S. aureus, E. faecium, and P. aeruginosa-infected as well as LPS-stimulated HUVEC cells. Furthermore, in vivo zebrafish experiments demonstrated the efficacy of CyQ in accurately discerning variations in NTR and NAD(P)H levels resulting from bacterial infection or LPS stimulation, thereby facilitating non-invasive detection of both bacterial and non-bacterial inflammations. The outstanding discriminatory ability of CyQ between bacterial and non-bacterial inflammation positions it as a promising clinical diagnostic tool for acute inflammations.
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Affiliation(s)
- Yue He
- School of Public Health, Nantong Key Laboratory of Public Health and Medical Analysis, Nantong University 9 Seyuan Road Nantong 226019 P. R. China
| | - Majun Yang
- School of Public Health, Nantong Key Laboratory of Public Health and Medical Analysis, Nantong University 9 Seyuan Road Nantong 226019 P. R. China
| | - Jingyi Cui
- Department of Laboratory Medicine, Affiliated Hospital of Nantong University No. 20, Xisi Road Nantong 226001 Jiangsu China
| | - Can Zhao
- School of Public Health, Nantong Key Laboratory of Public Health and Medical Analysis, Nantong University 9 Seyuan Road Nantong 226019 P. R. China
| | - Bin Jiang
- School of Public Health, Nantong Key Laboratory of Public Health and Medical Analysis, Nantong University 9 Seyuan Road Nantong 226019 P. R. China
| | - Jiayun Guan
- School of Public Health, Nantong Key Laboratory of Public Health and Medical Analysis, Nantong University 9 Seyuan Road Nantong 226019 P. R. China
| | - Xiaobo Zhou
- School of Public Health, Nantong Key Laboratory of Public Health and Medical Analysis, Nantong University 9 Seyuan Road Nantong 226019 P. R. China
| | - Miao He
- School of Public Health, Nantong Key Laboratory of Public Health and Medical Analysis, Nantong University 9 Seyuan Road Nantong 226019 P. R. China
| | - Yaya Zhen
- School of Public Health, Nantong Key Laboratory of Public Health and Medical Analysis, Nantong University 9 Seyuan Road Nantong 226019 P. R. China
| | - Yuxue Zhang
- School of Public Health, Nantong Key Laboratory of Public Health and Medical Analysis, Nantong University 9 Seyuan Road Nantong 226019 P. R. China
| | - Rongrong Jing
- Department of Laboratory Medicine, Affiliated Hospital of Nantong University No. 20, Xisi Road Nantong 226001 Jiangsu China
| | - Qi Wang
- School of Public Health, Nantong Key Laboratory of Public Health and Medical Analysis, Nantong University 9 Seyuan Road Nantong 226019 P. R. China
| | - Yuling Qin
- School of Public Health, Nantong Key Laboratory of Public Health and Medical Analysis, Nantong University 9 Seyuan Road Nantong 226019 P. R. China
| | - Li Wu
- School of Public Health, Nantong Key Laboratory of Public Health and Medical Analysis, Nantong University 9 Seyuan Road Nantong 226019 P. R. China
- School of Life Science, Nantong University Nantong 226001 China
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9
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Liu X, Xiang R, Fang X, Wang G, Zhou Y. Advances in Metabolic Regulation of Macrophage Polarization State. Immunol Invest 2024; 53:416-436. [PMID: 38206296 DOI: 10.1080/08820139.2024.2302828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2024]
Abstract
Macrophages are significant immune-related cells that are essential for tissue growth, homeostasis maintenance, pathogen resistance, and damage healing. The studies on the metabolic control of macrophage polarization state in recent years and the influence of polarization status on the development and incidence of associated disorders are expounded upon in this article. Firstly, we reviewed the origin and classification of macrophages, with particular attention paid to how the tricarboxylic acid cycle and the three primary metabolites affect macrophage polarization. The primary metabolic hub that controls macrophage polarization is the tricarboxylic acid cycle. Finally, we reviewed the polarization state of macrophages influences the onset and progression of cancers, inflammatory disorders, and other illnesses.
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Affiliation(s)
- Xin Liu
- School of Pharmacy, Drug Research & Development Center, Wannan Medical College, Wuhu, Anhui, China
- Anhui Provincial Engineering Research Center for Polysaccharide Drugs, Anhui Provincial Engineering Laboratory for Screening and Re-evaluation of Active Compounds of Herbal Medicines in Southern Anhui, Anhui Province Key Laboratory of Active Biological Macromolecules, Wuhu, China
| | - Ruoxuan Xiang
- School of Pharmacy, Drug Research & Development Center, Wannan Medical College, Wuhu, Anhui, China
- Anhui Provincial Engineering Research Center for Polysaccharide Drugs, Anhui Provincial Engineering Laboratory for Screening and Re-evaluation of Active Compounds of Herbal Medicines in Southern Anhui, Anhui Province Key Laboratory of Active Biological Macromolecules, Wuhu, China
| | - Xue Fang
- School of Pharmacy, Drug Research & Development Center, Wannan Medical College, Wuhu, Anhui, China
- Anhui Provincial Engineering Research Center for Polysaccharide Drugs, Anhui Provincial Engineering Laboratory for Screening and Re-evaluation of Active Compounds of Herbal Medicines in Southern Anhui, Anhui Province Key Laboratory of Active Biological Macromolecules, Wuhu, China
| | - Guodong Wang
- School of Pharmacy, Drug Research & Development Center, Wannan Medical College, Wuhu, Anhui, China
- Anhui Provincial Engineering Research Center for Polysaccharide Drugs, Anhui Provincial Engineering Laboratory for Screening and Re-evaluation of Active Compounds of Herbal Medicines in Southern Anhui, Anhui Province Key Laboratory of Active Biological Macromolecules, Wuhu, China
| | - Yuyan Zhou
- School of Pharmacy, Drug Research & Development Center, Wannan Medical College, Wuhu, Anhui, China
- Anhui Provincial Engineering Research Center for Polysaccharide Drugs, Anhui Provincial Engineering Laboratory for Screening and Re-evaluation of Active Compounds of Herbal Medicines in Southern Anhui, Anhui Province Key Laboratory of Active Biological Macromolecules, Wuhu, China
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10
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Fang Y, Xiang W, Cui J, Jiao B, Su X. Anti-Inflammatory Properties of the Citrus Flavonoid Diosmetin: An Updated Review of Experimental Models. Molecules 2024; 29:1521. [PMID: 38611801 PMCID: PMC11013832 DOI: 10.3390/molecules29071521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 03/22/2024] [Accepted: 03/27/2024] [Indexed: 04/14/2024] Open
Abstract
Inflammation is an essential contributor to various human diseases. Diosmetin (3',5,7-trihydroxy-4'-methoxyflavone), a citrus flavonoid, can be used as an anti-inflammatory agent. All the information in this article was collected from various research papers from online scientific databases such as PubMed and Web of Science. These studies have demonstrated that diosmetin can slow down the progression of inflammation by inhibiting the production of inflammatory mediators through modulating related pathways, predominantly the nuclear factor-κB (NF-κB) signaling pathway. In this review, we discuss the anti-inflammatory properties of diosmetin in cellular and animal models of various inflammatory diseases for the first time. We have identified some deficiencies in current research and offer suggestions for further advancement. In conclusion, accumulating evidence so far suggests a very important role for diosmetin in the treatment of various inflammatory disorders and suggests it is a candidate worthy of in-depth investigation.
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Affiliation(s)
- Yangyang Fang
- College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China; (Y.F.); (W.X.); (J.C.)
| | - Wei Xiang
- College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China; (Y.F.); (W.X.); (J.C.)
| | - Jinwei Cui
- College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China; (Y.F.); (W.X.); (J.C.)
| | - Bining Jiao
- Key Laboratory of Quality and Safety Control for Citrus Fruits, Ministry of Agriculture and Rural Affairs, Southwest University, Chongqing 400712, China;
| | - Xuesu Su
- College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China; (Y.F.); (W.X.); (J.C.)
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11
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Kogan F, Yoon D, Teeter MG, Chaudhari AJ, Hales L, Barbieri M, Gold GE, Vainberg Y, Goyal A, Watkins L. Multimodal positron emission tomography (PET) imaging in non-oncologic musculoskeletal radiology. Skeletal Radiol 2024:10.1007/s00256-024-04640-4. [PMID: 38492029 DOI: 10.1007/s00256-024-04640-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 02/27/2024] [Accepted: 02/28/2024] [Indexed: 03/18/2024]
Abstract
Musculoskeletal (MSK) disorders are associated with large impacts on patient's pain and quality of life. Conventional morphological imaging of tissue structure is limited in its ability to detect pain generators, early MSK disease, and rapidly assess treatment efficacy. Positron emission tomography (PET), which offers unique capabilities to evaluate molecular and metabolic processes, can provide novel information about early pathophysiologic changes that occur before structural or even microstructural changes can be detected. This sensitivity not only makes it a powerful tool for detection and characterization of disease, but also a tool able to rapidly assess the efficacy of therapies. These benefits have garnered more attention to PET imaging of MSK disorders in recent years. In this narrative review, we discuss several applications of multimodal PET imaging in non-oncologic MSK diseases including arthritis, osteoporosis, and sources of pain and inflammation. We also describe technical considerations and recent advancements in technology and radiotracers as well as areas of emerging interest for future applications of multimodal PET imaging of MSK conditions. Overall, we present evidence that the incorporation of PET through multimodal imaging offers an exciting addition to the field of MSK radiology and will likely prove valuable in the transition to an era of precision medicine.
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Affiliation(s)
- Feliks Kogan
- Department of Radiology, Stanford University, Stanford, CA, USA.
| | - Daehyun Yoon
- Department of Radiology, University of California-San Francisco, San Francisco, CA, USA
| | - Matthew G Teeter
- Department of Medical Biophysics, Western University, London, ON, Canada
| | | | - Laurel Hales
- Department of Radiology, Stanford University, Stanford, CA, USA
| | - Marco Barbieri
- Department of Radiology, Stanford University, Stanford, CA, USA
| | - Garry E Gold
- Department of Radiology, Stanford University, Stanford, CA, USA
| | - Yael Vainberg
- Department of Radiology, Stanford University, Stanford, CA, USA
| | - Ananya Goyal
- Department of Radiology, Stanford University, Stanford, CA, USA
| | - Lauren Watkins
- Department of Radiology, Stanford University, Stanford, CA, USA
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12
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Senthil Kumar S, Gunda V, Reinartz DM, Pond KW, Thorne CA, Santiago Raj PV, Johnson MDL, Wilson JE. Oral streptococci S. anginosus and S. mitis induce distinct morphological, inflammatory, and metabolic signatures in macrophages. Infect Immun 2024; 92:e0053623. [PMID: 38289109 DOI: 10.1128/iai.00536-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Accepted: 12/28/2023] [Indexed: 03/13/2024] Open
Abstract
Oral streptococci, key players in oral biofilm formation, are implicated in oral dysbiosis and various clinical conditions, including dental caries, gingivitis, periodontal disease, and oral cancer. Specifically, Streptococcus anginosus is associated with esophageal, gastric, and pharyngeal cancers, while Streptococcus mitis is linked to oral cancer. However, no study has investigated the mechanistic links between these Streptococcus species and cancer-related inflammatory responses. As an initial step, we probed the innate immune response triggered by S. anginosus and S. mitis in RAW264.7 macrophages. These bacteria exerted time- and dose-dependent effects on macrophage morphology without affecting cell viability. Compared with untreated macrophages, macrophages infected with S. anginosus exhibited a robust proinflammatory response characterized by significantly increased levels of inflammatory cytokines and mediators, including TNF, IL-6, IL-1β, NOS2, and COX2, accompanied by enhanced NF-κB activation. In contrast, S. mitis-infected macrophages failed to elicit a robust inflammatory response. Seahorse Xfe96 analysis revealed an increased extracellular acidification rate in macrophages infected with S. anginosus compared with S. mitis. At the 24-h time point, the presence of S. anginosus led to reduced extracellular itaconate, while S. mitis triggered increased itaconate levels, highlighting distinct metabolic profiles in macrophages during infection in contrast to aconitate decarboxylase expression observed at the 6-h time point. This initial investigation highlights how S. anginosus and S. mitis, two Gram-positive bacteria from the same genus, can prompt distinct immune responses and metabolic shifts in macrophages during infection.IMPORTANCEThe surge in head and neck cancer cases among individuals devoid of typical risk factors such as Human Papilloma Virus (HPV) infection and tobacco and alcohol use sparks an argumentative discussion around the emerging role of oral microbiota as a novel risk factor in oral squamous cell carcinoma (OSCC). While substantial research has dissected the gut microbiome's influence on physiology, the oral microbiome, notably oral streptococci, has been underappreciated during mucosal immunopathogenesis. Streptococcus anginosus, a viridans streptococci group, has been linked to abscess formation and an elevated presence in esophageal cancer and OSCC. The current study aims to probe the innate immune response to S. anginosus compared with the early colonizer Streptococcus mitis as an important first step toward understanding the impact of distinct oral Streptococcus species on the host immune response, which is an understudied determinant of OSCC development and progression.
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Affiliation(s)
- Sangeetha Senthil Kumar
- Department of Immunobiology, College of Medicine, The University of Arizona, Tucson, Arizona, USA
- The University of Arizona Cancer Center, Tucson, Arizona, USA
| | - Venugopal Gunda
- Department of Pharmacology, University of Virginia, Charlottesville, Virginia, USA
| | - Dakota M Reinartz
- Department of Immunobiology, College of Medicine, The University of Arizona, Tucson, Arizona, USA
- The University of Arizona Cancer Center, Tucson, Arizona, USA
| | - Kelvin W Pond
- The University of Arizona Cancer Center, Tucson, Arizona, USA
- Department of Cellular and Molecular Medicine, The University of Arizona, Tucson, Arizona, USA
| | - Curtis A Thorne
- The University of Arizona Cancer Center, Tucson, Arizona, USA
- Department of Cellular and Molecular Medicine, The University of Arizona, Tucson, Arizona, USA
| | | | - Michael D L Johnson
- Department of Immunobiology, College of Medicine, The University of Arizona, Tucson, Arizona, USA
- Valley Fever Center for Excellence, The University of Arizona Health Sciences, Tucson, Arizona, USA
- BIO5 Institute, The University of Arizona, Tucson, Arizona, USA
- Asthma and Airway Disease Research Center, The University of Arizona Health Sciences, Tucson, Arizona, USA
| | - Justin E Wilson
- Department of Immunobiology, College of Medicine, The University of Arizona, Tucson, Arizona, USA
- The University of Arizona Cancer Center, Tucson, Arizona, USA
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13
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Shariq M, Khan MF, Raj R, Ahsan N, Kumar P. PRKAA2, MTOR, and TFEB in the regulation of lysosomal damage response and autophagy. J Mol Med (Berl) 2024; 102:287-311. [PMID: 38183492 DOI: 10.1007/s00109-023-02411-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 12/07/2023] [Accepted: 12/18/2023] [Indexed: 01/08/2024]
Abstract
Lysosomes function as critical signaling hubs that govern essential enzyme complexes. LGALS proteins (LGALS3, LGALS8, and LGALS9) are integral to the endomembrane damage response. If ESCRT fails to rectify damage, LGALS-mediated ubiquitination occurs, recruiting autophagy receptors (CALCOCO2, TRIM16, and SQSTM1) and VCP/p97 complex containing UBXN6, PLAA, and YOD1, initiating selective autophagy. Lysosome replenishment through biogenesis is regulated by TFEB. LGALS3 interacts with TFRC and TRIM16, aiding ESCRT-mediated repair and autophagy-mediated removal of damaged lysosomes. LGALS8 inhibits MTOR and activates TFEB for ATG and lysosomal gene transcription. LGALS9 inhibits USP9X, activates PRKAA2, MAP3K7, ubiquitination, and autophagy. Conjugation of ATG8 to single membranes (CASM) initiates damage repair mediated by ATP6V1A, ATG16L1, ATG12, ATG5, ATG3, and TECPR1. ATG8ylation or CASM activates the MERIT system (ESCRT-mediated repair, autophagy-mediated clearance, MCOLN1 activation, Ca2+ release, RRAG-GTPase regulation, MTOR modulation, TFEB activation, and activation of GTPase IRGM). Annexins ANAX1 and ANAX2 aid damage repair. Stress granules stabilize damaged membranes, recruiting FLCN-FNIP1/2, G3BP1, and NUFIP1 to inhibit MTOR and activate TFEB. Lysosomes coordinate the synergistic response to endomembrane damage and are vital for innate and adaptive immunity. Future research should unveil the collaborative actions of ATG proteins, LGALSs, TRIMs, autophagy receptors, and lysosomal proteins in lysosomal damage response.
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Affiliation(s)
- Mohd Shariq
- Quantlase Imaging Laboratory, Quantlase Lab LLC, Unit 1-8, Masdar City, Abu Dhabi, UAE.
| | - Mohammad Firoz Khan
- Quantlase Imaging Laboratory, Quantlase Lab LLC, Unit 1-8, Masdar City, Abu Dhabi, UAE.
| | - Reshmi Raj
- Quantlase Imaging Laboratory, Quantlase Lab LLC, Unit 1-8, Masdar City, Abu Dhabi, UAE
| | - Nuzhat Ahsan
- Quantlase Imaging Laboratory, Quantlase Lab LLC, Unit 1-8, Masdar City, Abu Dhabi, UAE
| | - Pramod Kumar
- Quantlase Imaging Laboratory, Quantlase Lab LLC, Unit 1-8, Masdar City, Abu Dhabi, UAE
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14
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Schelemei P, Wagner E, Picard FSR, Winkels H. Macrophage mediators and mechanisms in cardiovascular disease. FASEB J 2024; 38:e23424. [PMID: 38275140 DOI: 10.1096/fj.202302001r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 12/21/2023] [Accepted: 12/29/2023] [Indexed: 01/27/2024]
Abstract
Macrophages are major players in myocardial infarction (MI) and atherosclerosis, two major cardiovascular diseases (CVD). Atherosclerosis is caused by the buildup of cholesterol-rich lipoproteins in blood vessels, causing inflammation, vascular injury, and plaque formation. Plaque rupture or erosion can cause thrombus formation resulting in inadequate blood flow to the heart muscle and MI. Inflammation, particularly driven by macrophages, plays a central role in both atherosclerosis and MI. Recent integrative approaches of single-cell analysis-based classifications in both murine and human atherosclerosis as well as experimental MI showed overlap in origin, diversity, and function of macrophages in the aorta and the heart. We here discuss differences and communalities between macrophages in the heart and aorta at steady state and in atherosclerosis or upon MI. We focus on markers, mediators, and functional states of macrophage subpopulations. Recent trials testing anti-inflammatory agents show a major benefit in reducing the inflammatory burden of CVD patients, but highlight a necessity for a broader understanding of immune cell ontogeny and heterogeneity in CVD. The novel insights into macrophage biology in CVD represent exciting opportunities for the development of novel treatment strategies against CVD.
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Affiliation(s)
- Patrik Schelemei
- University of Cologne, Faculty of Medicine and University Hospital Cologne, Clinic III for Internal Medicine, Cologne, Germany
- Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
| | - Elena Wagner
- University of Cologne, Faculty of Medicine and University Hospital Cologne, Clinic III for Internal Medicine, Cologne, Germany
- Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
| | - Felix Simon Ruben Picard
- University of Cologne, Faculty of Medicine and University Hospital Cologne, Clinic III for Internal Medicine, Cologne, Germany
- Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
| | - Holger Winkels
- University of Cologne, Faculty of Medicine and University Hospital Cologne, Clinic III for Internal Medicine, Cologne, Germany
- Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
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15
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Pazos-Pérez A, Piñeiro-Ramil M, Franco-Trepat E, Alonso-Pérez A, Guillán-Fresco M, Crespo-Golmar A, López-Fagúndez M, Aranda JC, Bravo SB, Jorge-Mora A, Gómez R. The Hepatokine RBP4 Links Metabolic Diseases to Articular Inflammation. Antioxidants (Basel) 2024; 13:124. [PMID: 38275649 PMCID: PMC10812991 DOI: 10.3390/antiox13010124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 01/05/2024] [Accepted: 01/10/2024] [Indexed: 01/27/2024] Open
Abstract
OBJECTIVES This study investigates the role of retinol binding protein 4 (RBP4) in an articular context. RBP4, a vitamin A transporter, is linked to various metabolic diseases. METHODS Synovial fluid RBP4 levels were assessed in crystalline arthritis (CA) patients using ELISA. RBP4's impact on articular cell types was analysed in vitro through RT-PCR and flow cytometry. Proteomic analysis was conducted on primary human osteoarthritis chondrocytes (hOACs). RESULTS Synovial fluid RBP4 concentrations in CA patients correlated positively with glucose levels and negatively with synovial leukocyte count and were elevated in hypertensive patients. In vitro, these RBP4 concentrations activated neutrophils, induced the expression of inflammatory factors in hOACs as well as synoviocytes, and triggered proteomic changes consistent with inflammation. Moreover, they increased catabolism and decreased anabolism, mitochondrial dysfunction, and glycolysis promotion. Both in silico and in vitro experiments suggested that RBP4 acts through TLR4. CONCLUSIONS This study identifies relevant RBP4 concentrations in CA patients' synovial fluids, linking them to hypertensive patients with a metabolic disruption. Evidence is provided that RBP4 acts as a DAMP at these concentrations, inducing robust inflammatory, catabolic, chemotactic, and metabolic responses in chondrocytes, synoviocytes, and neutrophils. These effects may explain RBP4-related metabolic diseases' contribution to joint destruction in various rheumatic conditions like CA.
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Affiliation(s)
- Andrés Pazos-Pérez
- Musculoskeletal Pathology Group, Health Research Institute of Santiago de Compostela (IDIS), Santiago University Clinical Hospital, SERGAS, 15706 Santiago de Compostela, Spain; (A.P.-P.); (M.P.-R.); (E.F.-T.); (A.A.-P.); (M.G.-F.); (A.C.-G.); (M.L.-F.); (S.B.B.); (A.J.-M.)
| | - María Piñeiro-Ramil
- Musculoskeletal Pathology Group, Health Research Institute of Santiago de Compostela (IDIS), Santiago University Clinical Hospital, SERGAS, 15706 Santiago de Compostela, Spain; (A.P.-P.); (M.P.-R.); (E.F.-T.); (A.A.-P.); (M.G.-F.); (A.C.-G.); (M.L.-F.); (S.B.B.); (A.J.-M.)
| | - Eloi Franco-Trepat
- Musculoskeletal Pathology Group, Health Research Institute of Santiago de Compostela (IDIS), Santiago University Clinical Hospital, SERGAS, 15706 Santiago de Compostela, Spain; (A.P.-P.); (M.P.-R.); (E.F.-T.); (A.A.-P.); (M.G.-F.); (A.C.-G.); (M.L.-F.); (S.B.B.); (A.J.-M.)
| | - Ana Alonso-Pérez
- Musculoskeletal Pathology Group, Health Research Institute of Santiago de Compostela (IDIS), Santiago University Clinical Hospital, SERGAS, 15706 Santiago de Compostela, Spain; (A.P.-P.); (M.P.-R.); (E.F.-T.); (A.A.-P.); (M.G.-F.); (A.C.-G.); (M.L.-F.); (S.B.B.); (A.J.-M.)
| | - María Guillán-Fresco
- Musculoskeletal Pathology Group, Health Research Institute of Santiago de Compostela (IDIS), Santiago University Clinical Hospital, SERGAS, 15706 Santiago de Compostela, Spain; (A.P.-P.); (M.P.-R.); (E.F.-T.); (A.A.-P.); (M.G.-F.); (A.C.-G.); (M.L.-F.); (S.B.B.); (A.J.-M.)
| | - Antía Crespo-Golmar
- Musculoskeletal Pathology Group, Health Research Institute of Santiago de Compostela (IDIS), Santiago University Clinical Hospital, SERGAS, 15706 Santiago de Compostela, Spain; (A.P.-P.); (M.P.-R.); (E.F.-T.); (A.A.-P.); (M.G.-F.); (A.C.-G.); (M.L.-F.); (S.B.B.); (A.J.-M.)
| | - Miriam López-Fagúndez
- Musculoskeletal Pathology Group, Health Research Institute of Santiago de Compostela (IDIS), Santiago University Clinical Hospital, SERGAS, 15706 Santiago de Compostela, Spain; (A.P.-P.); (M.P.-R.); (E.F.-T.); (A.A.-P.); (M.G.-F.); (A.C.-G.); (M.L.-F.); (S.B.B.); (A.J.-M.)
| | - Javier Conde Aranda
- Molecular and Cellular Gastroenterology, Health Research Institute of Santiago de Compostela (IDIS), Santiago University Clinical Hospital, SERGAS, 15706 Santiago de Compostela, Spain;
| | - Susana Belen Bravo
- Musculoskeletal Pathology Group, Health Research Institute of Santiago de Compostela (IDIS), Santiago University Clinical Hospital, SERGAS, 15706 Santiago de Compostela, Spain; (A.P.-P.); (M.P.-R.); (E.F.-T.); (A.A.-P.); (M.G.-F.); (A.C.-G.); (M.L.-F.); (S.B.B.); (A.J.-M.)
| | - Alberto Jorge-Mora
- Musculoskeletal Pathology Group, Health Research Institute of Santiago de Compostela (IDIS), Santiago University Clinical Hospital, SERGAS, 15706 Santiago de Compostela, Spain; (A.P.-P.); (M.P.-R.); (E.F.-T.); (A.A.-P.); (M.G.-F.); (A.C.-G.); (M.L.-F.); (S.B.B.); (A.J.-M.)
| | - Rodolfo Gómez
- Musculoskeletal Pathology Group, Health Research Institute of Santiago de Compostela (IDIS), Santiago University Clinical Hospital, SERGAS, 15706 Santiago de Compostela, Spain; (A.P.-P.); (M.P.-R.); (E.F.-T.); (A.A.-P.); (M.G.-F.); (A.C.-G.); (M.L.-F.); (S.B.B.); (A.J.-M.)
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16
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Alijagic A, Kotlyar O, Larsson M, Salihovic S, Hedbrant A, Eriksson U, Karlsson P, Persson A, Scherbak N, Färnlund K, Engwall M, Särndahl E. Immunotoxic, genotoxic, and endocrine disrupting impacts of polyamide microplastic particles and chemicals. ENVIRONMENT INTERNATIONAL 2024; 183:108412. [PMID: 38183898 DOI: 10.1016/j.envint.2023.108412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 12/06/2023] [Accepted: 12/28/2023] [Indexed: 01/08/2024]
Abstract
Due to their exceptional properties and cost effectiveness, polyamides or nylons have emerged as widely used materials, revolutionizing diverse industries, including industrial 3D printing or additive manufacturing (AM). Powder-based AM technologies employ tonnes of polyamide microplastics to produce complex components every year. However, the lack of comprehensive toxicity assessment of particulate polyamides and polyamide-associated chemicals, especially in the light of the global microplastics crisis, calls for urgent action. This study investigated the physicochemical properties of polyamide-12 microplastics used in AM, and assessed a number of toxicity endpoints focusing on inflammation, immunometabolism, genotoxicity, aryl hydrocarbon receptor (AhR) activation, endocrine disruption, and cell morphology. Specifically, microplastics examination by means of field emission scanning electron microscopy revealed that work flow reuse of material created a fraction of smaller particles with an average size of 1-5 µm, a size range readily available for uptake by human cells. Moreover, chemical analysis by means of gas chromatography high-resolution mass spectrometry detected several polyamide-associated chemicals including starting material, plasticizer, thermal stabilizer/antioxidant, and migrating slip additive. Even if polyamide particles and chemicals did not induce an acute inflammatory response, repeated and prolonged exposure of human primary macrophages disclosed a steady increase in the levels of proinflammatory chemokine Interleukin-8 (IL-8/CXCL-8). Moreover, targeted metabolomics disclosed that polyamide particles modulated the kynurenine pathway and some of its key metabolites. The p53-responsive luciferase reporter gene assay showed that particles per se were able to activate p53, being indicative of a genotoxic stress. Polyamide-associated chemicals triggered moderate activation of AhR and elicited anti-androgenic activity. Finally, a high-throughput and non-targeted morphological profiling by Cell Painting assay outlined major sites of bioactivity of polyamide-associated chemicals and indicated putative mechanisms of toxicity in the cells. These findings reveal that the increasing use of polyamide microplastics may pose a potential health risk for the exposed individuals, and it merits more attention.
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Affiliation(s)
- Andi Alijagic
- Man-Technology-Environment Research Center (MTM), Örebro University, Örebro SE-701 82, Sweden; Inflammatory Response and Infection Susceptibility Centre (iRiSC), Faculty of Medicine and Health, Örebro University, Örebro SE-701 82, Sweden; School of Medical Sciences, Faculty of Medicine and Health, Örebro University, Örebro SE-701 82, Sweden.
| | - Oleksandr Kotlyar
- Man-Technology-Environment Research Center (MTM), Örebro University, Örebro SE-701 82, Sweden; Centre for Applied Autonomous Sensor Systems (AASS), Mobile Robotics and Olfaction Lab (MRO), Örebro University, SE-701 82 Örebro, Sweden
| | - Maria Larsson
- Man-Technology-Environment Research Center (MTM), Örebro University, Örebro SE-701 82, Sweden
| | - Samira Salihovic
- Inflammatory Response and Infection Susceptibility Centre (iRiSC), Faculty of Medicine and Health, Örebro University, Örebro SE-701 82, Sweden; School of Medical Sciences, Faculty of Medicine and Health, Örebro University, Örebro SE-701 82, Sweden
| | - Alexander Hedbrant
- Inflammatory Response and Infection Susceptibility Centre (iRiSC), Faculty of Medicine and Health, Örebro University, Örebro SE-701 82, Sweden; School of Medical Sciences, Faculty of Medicine and Health, Örebro University, Örebro SE-701 82, Sweden
| | - Ulrika Eriksson
- Man-Technology-Environment Research Center (MTM), Örebro University, Örebro SE-701 82, Sweden
| | - Patrik Karlsson
- Department of Mechanical Engineering, Örebro University, Örebro SE-701 82, Sweden
| | - Alexander Persson
- Inflammatory Response and Infection Susceptibility Centre (iRiSC), Faculty of Medicine and Health, Örebro University, Örebro SE-701 82, Sweden; School of Medical Sciences, Faculty of Medicine and Health, Örebro University, Örebro SE-701 82, Sweden
| | - Nikolai Scherbak
- Man-Technology-Environment Research Center (MTM), Örebro University, Örebro SE-701 82, Sweden
| | | | - Magnus Engwall
- Man-Technology-Environment Research Center (MTM), Örebro University, Örebro SE-701 82, Sweden
| | - Eva Särndahl
- Inflammatory Response and Infection Susceptibility Centre (iRiSC), Faculty of Medicine and Health, Örebro University, Örebro SE-701 82, Sweden; School of Medical Sciences, Faculty of Medicine and Health, Örebro University, Örebro SE-701 82, Sweden
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Gong L, Liang J, Xie L, Zhang Z, Mei Z, Zhang W. Metabolic Reprogramming in Gliocyte Post-cerebral Ischemia/ Reperfusion: From Pathophysiology to Therapeutic Potential. Curr Neuropharmacol 2024; 22:1672-1696. [PMID: 38362904 DOI: 10.2174/1570159x22666240131121032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 12/08/2023] [Accepted: 12/13/2023] [Indexed: 02/17/2024] Open
Abstract
Ischemic stroke is a leading cause of disability and death worldwide. However, the clinical efficacy of recanalization therapy as a preferred option is significantly hindered by reperfusion injury. The transformation between different phenotypes of gliocytes is closely associated with cerebral ischemia/ reperfusion injury (CI/RI). Moreover, gliocyte polarization induces metabolic reprogramming, which refers to the shift in gliocyte phenotype and the overall transformation of the metabolic network to compensate for energy demand and building block requirements during CI/RI caused by hypoxia, energy deficiency, and oxidative stress. Within microglia, the pro-inflammatory phenotype exhibits upregulated glycolysis, pentose phosphate pathway, fatty acid synthesis, and glutamine synthesis, whereas the anti-inflammatory phenotype demonstrates enhanced mitochondrial oxidative phosphorylation and fatty acid oxidation. Reactive astrocytes display increased glycolysis but impaired glycogenolysis and reduced glutamate uptake after CI/RI. There is mounting evidence suggesting that manipulation of energy metabolism homeostasis can induce microglial cells and astrocytes to switch from neurotoxic to neuroprotective phenotypes. A comprehensive understanding of underlying mechanisms and manipulation strategies targeting metabolic pathways could potentially enable gliocytes to be reprogrammed toward beneficial functions while opening new therapeutic avenues for CI/RI treatment. This review provides an overview of current insights into metabolic reprogramming mechanisms in microglia and astrocytes within the pathophysiological context of CI/RI, along with potential pharmacological targets. Herein, we emphasize the potential of metabolic reprogramming of gliocytes as a therapeutic target for CI/RI and aim to offer a novel perspective in the treatment of CI/RI.
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Affiliation(s)
- Lipeng Gong
- Key Laboratory of Hunan Province for Integrated Traditional Chinese and Western Medicine on Prevention and Treatment of Cardio-Cerebral Diseases, College of Integrated Traditional Chinese Medicine and Western Medicine, Hunan University of Chinese Medicine, Changsha, Hunan 410208, China
| | - Junjie Liang
- Key Laboratory of Hunan Province for Integrated Traditional Chinese and Western Medicine on Prevention and Treatment of Cardio-Cerebral Diseases, College of Integrated Traditional Chinese Medicine and Western Medicine, Hunan University of Chinese Medicine, Changsha, Hunan 410208, China
| | - Letian Xie
- Key Laboratory of Hunan Province for Integrated Traditional Chinese and Western Medicine on Prevention and Treatment of Cardio-Cerebral Diseases, College of Integrated Traditional Chinese Medicine and Western Medicine, Hunan University of Chinese Medicine, Changsha, Hunan 410208, China
| | - Zhanwei Zhang
- Department of Neurosurgery, First Affiliated Hospital of Hunan University of Traditional Chinese Medicine, Changsha, Hunan 410007, China
| | - Zhigang Mei
- Key Laboratory of Hunan Province for Integrated Traditional Chinese and Western Medicine on Prevention and Treatment of Cardio-Cerebral Diseases, College of Integrated Traditional Chinese Medicine and Western Medicine, Hunan University of Chinese Medicine, Changsha, Hunan 410208, China
- Third-Grade Pharmacological Laboratory on Chinese Medicine Approved by State Administration of Traditional Chinese Medicine, College of Medicine and Health Sciences, China Three Gorges University, Yichang, Hubei 443002, China
| | - Wenli Zhang
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha, Hunan 410208, China
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18
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Petrova B, Lacey TE, Culhane AJ, Cui J, Raskin A, Misra A, Lehtinen MK, Kanarek N. Metabolomics of Mouse Embryonic CSF Following Maternal Immune Activation. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.12.06.570507. [PMID: 38105934 PMCID: PMC10723469 DOI: 10.1101/2023.12.06.570507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
The cerebrospinal fluid (CSF) serves various roles in the developing central nervous system (CNS), from neurogenesis to lifelong cognitive functions. Changes in CSF composition due to inflammation can impact brain function. We recently identified an abnormal cytokine signature in embryonic CSF (eCSF) following maternal immune activation (MIA), a mouse model of autism spectrum disorder (ASD). We hypothesized that MIA leads to other alterations in eCSF composition and employed untargeted metabolomics to profile changes in the eCSF metabolome in mice after inducing MIA with polyI:C. We report these data here as a resource, include a comprehensive MS1 and MS2 reference dataset, and present additional datasets comparing two mouse strains (CD-1 and C57Bl/6) and two developmental time points (E12.5 and E14.5). Targeted metabolomics further validated changes upon MIA. We show a significant elevation of glucocorticoids and kynurenine pathway related metabolites. Both pathways are relevant for suppressing inflammation or could be informative as disease biomarkers. Our resource should inform future mechanistic studies regarding the etiology of MIA neuropathology and roles and contributions of eCSF metabolites to brain development.
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19
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Song Z, Su M, Li X, Xie J, Han F, Yao J. A novel endoplasmic reticulum stress-related lncRNA signature for prognosis prediction and immune response evaluation in Stomach adenocarcinoma. BMC Gastroenterol 2023; 23:432. [PMID: 38066437 PMCID: PMC10709857 DOI: 10.1186/s12876-023-03001-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 10/16/2023] [Indexed: 12/18/2023] Open
Abstract
BACKGROUND Stomach adenocarcinoma (STAD) is a significant contributor to cancer-related mortality worldwide. Although previous research has identified endoplasmic reticulum stress (ERS) as a regulator of various tumor-promoting properties of cancer cells, the impact of ERS-related long non-coding RNAs (lncRNAs) on STAD prognosis has not yet been investigated. Therefore, our study aims to develop and validate an ERS-related lncRNA signature that can accurately predict the prognosis of STAD patients. METHODS We collected RNA expression profiles and clinical data of STAD patients from The Cancer Genome Atlas (TCGA) and identified ERS-related genes from the Molecular Signature Database (MSigDB). Co-expression analysis enabled us to identify ERS-related lncRNAs, and we applied univariate Cox, least absolute shrinkage, and selection operator (LASSO), and multivariate Cox regression analyses to construct a predictive signature comprising of 9 ERS-related lncRNAs. We assessed the prognostic accuracy of our signature using Kaplan-Meier survival analysis, and validated our predictive signature in an independent gene expression omnibus (GEO) cohort. We also performed tumor mutational burden (TMB) and tumor immune microenvironment (TIME) analyses. Enrichment analysis was used to investigate the functions and biological processes of the signature, and we identified two distinct STAD patient subgroups through consensus clustering. Finally, we performed drug sensitivity analysis and immunologic efficacy analysis to explore further insights. RESULTS The 9 ERS related-lncRNAs signature demonstrated satisfactory predictive performance as an independent prognostic marker and was significantly associated with STAD clinicopathological characteristics. Furthermore, patients in the high-risk group displayed a worse STAD prognosis than those in the low-risk group. Notably, gene set enrichment analysis (GSEA) revealed significant enrichment of extracellular matrix pathways in the high-risk group, indicating their involvement in STAD progression. Additionally, the high-risk group exhibited significantly lower TMB expression levels than the low-risk group. Consensus clustering revealed two distinct STAD patient subgroups, with Cluster 1 exhibiting higher immune cell infiltration and more active immune functions. Drug sensitivity analysis suggested that the low-risk group was more responsive to oxaliplatin, epirubicinl, and other drugs. CONCLUSION Our study highlights the crucial regulatory roles of ERS-related lncRNAs in STAD, with significant clinical implications. The 9-lncRNA signature we have constructed represents a reliable prognostic indicator that has the potential to inform more personalized treatment decisions for STAD patients. These findings shed new light on the pathogenesis of STAD and its underlying molecular mechanisms, offering opportunities for novel therapeutic strategies to be developed for STAD patients.
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Affiliation(s)
- Zhaoxiang Song
- Depratment of Gastroenterology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Mengge Su
- Depratment of Gastroenterology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Xiangyu Li
- Depratment of Gastroenterology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jinlin Xie
- Depratment of Gastroenterology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Fei Han
- Depratment of Gastroenterology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jianning Yao
- Depratment of Gastroenterology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
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Wang Z, Zhang M, Zhou Y, Zhang Y, Wang K, Liu J. Coacervate Microdroplets as Synthetic Protocells for Cell Mimicking and Signaling Communications. SMALL METHODS 2023; 7:e2300042. [PMID: 36908048 DOI: 10.1002/smtd.202300042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 02/24/2023] [Indexed: 06/18/2023]
Abstract
Synthetic protocells are minimal systems that mimic certain properties of natural cells and are used to research the emergence of life from a nonliving chemical network. Currently, coacervate microdroplets, which are formed via liquid-liquid phase separation, are receiving wide attention in the context of cell biology and protocell research; these microdroplets are notable because they can provide liquid-like compartment structures for biochemical reactions by creating highly macromolecular crowded local environments. In this review, an overview of recent research on the formation of coacervate microdroplets through phase separation; the design of coacervate-based stimuli-responsive protocells, multichamber protocells, and membranized protocells; and their cell mimic behaviors, is provided. The simplified protocell models with precisely defined and tunable compositions advance the understanding of the requirements for cellular structure and function. Efforts are then discussed to establish signal communication systems in protocell and protocell consortia, as communication is a fundamental feature of life that coordinates matter exchanges and energy fluxes dynamically in space and time. Finally, some perspectives on the challenges and future developments of synthetic protocell research in biomimetic science and biomedical applications are provided.
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Affiliation(s)
- Zefeng Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha, 410082, P. R. China
| | - Min Zhang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha, 410082, P. R. China
| | - Yan Zhou
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha, 410082, P. R. China
| | - Yanwen Zhang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha, 410082, P. R. China
| | - Kemin Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha, 410082, P. R. China
| | - Jianbo Liu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha, 410082, P. R. China
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21
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Kong Q, Zhu Z, Xu Q, Yu F, Wang Q, Gu Z, Xia K, Jiang D, Kong H. Nature-Inspired Thylakoid-Based Photosynthetic Nanoarchitectures for Biomedical Applications. SMALL METHODS 2023:e2301143. [PMID: 38040986 DOI: 10.1002/smtd.202301143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 10/22/2023] [Indexed: 12/03/2023]
Abstract
"Drawing inspiration from nature" offers a wealth of creative possibilities for designing cutting-edge materials with improved properties and performance. Nature-inspired thylakoid-based nanoarchitectures, seamlessly integrate the inherent structures and functions of natural components with the diverse and controllable characteristics of nanotechnology. These innovative biomaterials have garnered significant attention for their potential in various biomedical applications. Thylakoids possess fundamental traits such as light harvesting, oxygen evolution, and photosynthesis. Through the integration of artificially fabricated nanostructures with distinct physical and chemical properties, novel photosynthetic nanoarchitectures can be catalytically generated, offering versatile functionalities for diverse biomedical applications. In this article, an overview of the properties and extraction methods of thylakoids are provided. Additionally, the recent advancements in the design, preparation, functions, and biomedical applications of a range of thylakoid-based photosynthetic nanoarchitectures are reviewed. Finally, the foreseeable challenges and future prospects in this field is discussed.
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Affiliation(s)
- Qunshou Kong
- Department of Nuclear Medicine, Wuhan Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Key Laboratory of Molecular Imaging, Wuhan, 430022, China
- Key Laboratory of Biological Targeted Therapy, The Ministry of Education, Wuhan, 430022, China
| | - Zhimin Zhu
- Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201204, China
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Qin Xu
- Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201204, China
| | - Feng Yu
- Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201204, China
| | - Qisheng Wang
- Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201204, China
| | - Zhihua Gu
- Shanghai Pudong TCM Hospital, Shanghai, 201205, China
| | - Kai Xia
- Shanghai Frontier Innovation Research Institute, Shanghai, 201108, China
- Xiangfu Laboratory, Jiashan, 314102, China
- Shanghai Stomatological Hospital, Fudan University, Shanghai, 200031, China
| | - Dawei Jiang
- Department of Nuclear Medicine, Wuhan Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Key Laboratory of Molecular Imaging, Wuhan, 430022, China
- Key Laboratory of Biological Targeted Therapy, The Ministry of Education, Wuhan, 430022, China
| | - Huating Kong
- Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201204, China
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22
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Lu C, Cheng RJ, Zhang Q, Hu Y, Pu Y, Wen J, Zhong Y, Tang Z, Wu L, Wei S, Tsou PS, Fox DA, Li S, Luo Y, Liu Y. Herbal compound cepharanthine attenuates inflammatory arthritis by blocking macrophage M1 polarization. Int Immunopharmacol 2023; 125:111175. [PMID: 37976601 DOI: 10.1016/j.intimp.2023.111175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 10/25/2023] [Accepted: 11/01/2023] [Indexed: 11/19/2023]
Abstract
OBJECTIVE Cepharanthine (CEP) is a drug candidate for tumor, viral infection, and some inflammatory diseases, but its effect on rheumatoid arthritis (RA) and the underlying mechanism are incompletely understood. METHODS CEP was administered intraperitoneally to a collagen-induced arthritis (CIA) model. Joints went radiological and histological examination and serum cytokines were examined with cytometry-based analysis. M1 macrophages were induced from THP-1 cells or mouse bone marrow-derived macrophages with LPS and IFN-γ. Bulk RNA-seq was performed on macrophage undergoing M1-polarizatioin. Western blotting was applied to determine pathways involved in monocyte chemotaxis and polarization. Glycolysis metabolites were measured by chemiluminescence while glycolytic enzymes were examined by quantitative PCR. RESULTS We found CEP significantly ameliorated synovial inflammation and joint destruction of CIA mice. It downregulated TNF-α levels in serum and in joints. The number of M1 macrophages were reduced in CEP-treated mice. In vitro, CEP inhibited monocyte chemotaxis to MCP-1 by downregulating CCR2 and reducing ERK1/2 signaling. Additionally, CEP suppressed M1 polarization of macrophages induced by LPS and IFN-γ. Genes involved in IFN-γ signaling, IL-6-JAK/STAT3 signaling, glycolysis, and oxidative phosphorylation process were downregulated by CEP. Several enzymes critically involved in glycolytic metabolism were suppressed by CEP, which resulted in reduced citrate in M1-polarizing macrophages. The inhibitory effect of CEP on macrophage polarization might be attributed to the blockage of TLRs-MyD88/IRAK4-IRF5 signaling pathway together with suppression of overactivated glycolytic metabolism in M1-polarizing macrophages. CONCLUSION CEP attenuated joint inflammation by suppressing monocyte chemotaxis and proinflammatory differentiation. It has the potential to be developed into a complementary or alternative therapy for RA.
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Affiliation(s)
- Chenyang Lu
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu 610041, China; Division of Rheumatology, Department of Internal Medicine, the Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510630, China
| | - Rui-Juan Cheng
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Qiuping Zhang
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Yidan Hu
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Yaoyu Pu
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Ji Wen
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Yutong Zhong
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Zhigang Tang
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Liang Wu
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Shixiong Wei
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, NO. 1 Shuai Fu Yuan, Wang Fu Jing Street, Beijing 100730, China
| | - Pei-Suen Tsou
- Division of Rheumatology, Department of Internal Medicine and Clinical Autoimmunity Center of Excellence, University of Michigan, Ann Arbor, MI, USA
| | - David A Fox
- Division of Rheumatology, Department of Internal Medicine and Clinical Autoimmunity Center of Excellence, University of Michigan, Ann Arbor, MI, USA
| | - Shasha Li
- Guangdong Provincial Key Laboratory of Diabetology & Guangzhou Municipal Key Laboratory of Mechanistic and Translational Obesity Research, Medical Center for Comprehensive Weight Control, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China.
| | - Yubin Luo
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu 610041, China.
| | - Yi Liu
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu 610041, China.
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Cai J, Cui J, Wang L. S-palmitoylation regulates innate immune signaling pathways: molecular mechanisms and targeted therapies. Eur J Immunol 2023; 53:e2350476. [PMID: 37369620 DOI: 10.1002/eji.202350476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Revised: 05/10/2023] [Accepted: 06/09/2023] [Indexed: 06/29/2023]
Abstract
S-palmitoylation is a reversible posttranslational lipid modification that targets cysteine residues of proteins and plays critical roles in regulating the biological processes of substrate proteins. The innate immune system serves as the first line of defense against pathogenic invaders and participates in the maintenance of tissue homeostasis. Emerging studies have uncovered the functions of S-palmitoylation in modulating innate immune responses. In this review, we focus on the reversible palmitoylation of innate immune signaling proteins, with particular emphasis on its roles in the regulation of protein localization, protein stability, and protein-protein interactions. We also highlight the potential and challenge of developing therapies that target S-palmitoylation or de-palmitoylation for various diseases.
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Affiliation(s)
- Jing Cai
- MOE Key Laboratory of Gene Function and Regulation, Guangdong Province Key Laboratory of Pharmaceutical Functional Genes, State Key Laboratory of Biocontrol, School of Life Sciences of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Jun Cui
- MOE Key Laboratory of Gene Function and Regulation, Guangdong Province Key Laboratory of Pharmaceutical Functional Genes, State Key Laboratory of Biocontrol, School of Life Sciences of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Liqiu Wang
- MOE Key Laboratory of Gene Function and Regulation, Guangdong Province Key Laboratory of Pharmaceutical Functional Genes, State Key Laboratory of Biocontrol, School of Life Sciences of Sun Yat-sen University, Guangzhou, Guangdong, China
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24
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Xiong W, Peng Y, Ma W, Xu X, Zhao Y, Wu J, Tang R. Microalgae-material hybrid for enhanced photosynthetic energy conversion: a promising path towards carbon neutrality. Natl Sci Rev 2023; 10:nwad200. [PMID: 37671320 PMCID: PMC10476897 DOI: 10.1093/nsr/nwad200] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Revised: 05/10/2023] [Accepted: 07/02/2023] [Indexed: 09/07/2023] Open
Abstract
Photosynthetic energy conversion for high-energy chemicals generation is one of the most viable solutions in the quest for sustainable energy towards carbon neutrality. Microalgae are fascinating photosynthetic organisms, which can directly convert solar energy into chemical energy and electrical energy. However, microalgal photosynthetic energy has not yet been applied on a large scale due to the limitation of their own characteristics. Researchers have been inspired to couple microalgae with synthetic materials via biomimetic assembly and the resulting microalgae-material hybrids have become more robust and even perform new functions. In the past decade, great progress has been made in microalgae-material hybrids, such as photosynthetic carbon dioxide fixation, photosynthetic hydrogen production, photoelectrochemical energy conversion and even biochemical energy conversion for biomedical therapy. The microalgae-material hybrid offers opportunities to promote artificially enhanced photosynthesis research and synchronously inspires investigation of biotic-abiotic interface manipulation. This review summarizes current construction methods of microalgae-material hybrids and highlights their implication in energy and health. Moreover, we discuss the current problems and future challenges for microalgae-material hybrids and the outlook for their development and applications. This review will provide inspiration for the rational design of the microalgae-based semi-natural biohybrid and further promote the disciplinary fusion of material science and biological science.
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Affiliation(s)
- Wei Xiong
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, China
| | - Yiyan Peng
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, China
| | - Weimin Ma
- College of Life Sciences, Shanghai Normal University, Shanghai 200234, China
| | - Xurong Xu
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
- Qiushi Academy for Advanced Studies, Zhejiang University, Hangzhou 310027, China
| | - Yueqi Zhao
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou 310016, China
| | - Jinhui Wu
- State Key Laboratory of Pharmaceutical Biotechnology, Medical School & School of Life Sciences, Nanjing University, Nanjing 210093, China
| | - Ruikang Tang
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
- Qiushi Academy for Advanced Studies, Zhejiang University, Hangzhou 310027, China
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25
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Flocke V, Temme S, Bouvain P, Grandoch M, Flögel U. Noninvasive assessment of metabolic turnover during inflammation by in vivo deuterium magnetic resonance spectroscopy. Front Immunol 2023; 14:1258027. [PMID: 37841266 PMCID: PMC10568178 DOI: 10.3389/fimmu.2023.1258027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 09/11/2023] [Indexed: 10/17/2023] Open
Abstract
Background Inflammation and metabolism exhibit a complex interplay, where inflammation influences metabolic pathways, and in turn, metabolism shapes the quality of immune responses. Here, glucose turnover is of special interest, as proinflammatory immune cells mainly utilize glycolysis to meet their energy needs. Noninvasive approaches to monitor both processes would help elucidate this interwoven relationship to identify new therapeutic targets and diagnostic opportunities. Methods For induction of defined inflammatory hotspots, LPS-doped Matrigel plugs were implanted into the neck of C57BL/6J mice. Subsequently, 1H/19F magnetic resonance imaging (MRI) was used to track the recruitment of 19F-loaded immune cells to the inflammatory focus and deuterium (2H) magnetic resonance spectroscopy (MRS) was used to monitor the metabolic fate of [6,6-2H2]glucose within the affected tissue. Histology and flow cytometry were used to validate the in vivo data. Results After plug implantation and intravenous administration of the 19F-containing contrast agent, 1H/19F MRI confirmed the infiltration of 19F-labeled immune cells into LPS-doped plugs while no 19F signal was observed in PBS-containing control plugs. Identification of the inflammatory focus was followed by i.p. bolus injection of deuterated glucose and continuous 2H MRS. Inflammation-induced alterations in metabolic fluxes could be tracked with an excellent temporal resolution of 2 min up to approximately 60 min after injection and demonstrated a more anaerobic glucose utilization in the initial phase of immune cell recruitment. Conclusion 1H/2H/19F MRI/MRS was successfully employed for noninvasive monitoring of metabolic alterations in an inflammatory environment, paving the way for simultaneous in vivo registration of immunometabolic data in basic research and patients.
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Affiliation(s)
- Vera Flocke
- Experimental Cardiovascular Imaging, Institute for Molecular Cardiology, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Sebastian Temme
- Department of Anaesthesiology, University Hospital Düsseldorf, Düsseldorf, Germany
- University Hospital Düsseldorf, Cardiovascular Research Institute Düsseldorf (CARID), Düsseldorf, Germany
| | - Pascal Bouvain
- Experimental Cardiovascular Imaging, Institute for Molecular Cardiology, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Maria Grandoch
- University Hospital Düsseldorf, Cardiovascular Research Institute Düsseldorf (CARID), Düsseldorf, Germany
- Institute for Translational Pharmacology, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Ulrich Flögel
- Experimental Cardiovascular Imaging, Institute for Molecular Cardiology, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
- University Hospital Düsseldorf, Cardiovascular Research Institute Düsseldorf (CARID), Düsseldorf, Germany
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de Jong R, Tenbrock K, Ohl K. New Insights in Immunometabolism in Neonatal Monocytes and Macrophages in Health and Disease. Int J Mol Sci 2023; 24:14173. [PMID: 37762476 PMCID: PMC10531550 DOI: 10.3390/ijms241814173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 09/13/2023] [Accepted: 09/14/2023] [Indexed: 09/29/2023] Open
Abstract
It is well established that the neonatal immune system is different from the adult immune system. A major task of the neonatal immune system is to bridge the achievement of tolerance towards harmless antigens and commensal bacteria while providing protection against pathogens. This is highly important because neonates are immunologically challenged directly after birth by a rigorous change from a semi-allogeneic sterile environment into a world rich with microbes. A so called disease tolerogenic state is typical for neonates and is anticipated to prevent immunopathological damage potentially at the cost of uncontrolled pathogen proliferation. As a consequence, neonates are more susceptible than adults to life-threatening infections. At the basis of a well-functioning immune response, both for adults and neonates, innate immune cells such as monocytes and monocyte-derived macrophages play an essential role. A well-responsive monocyte will alter its cellular metabolism to subsequently induce certain immune effector function, a process which is called immunometabolism. Immunometabolism has received extensive attention in the last decade; however, it has not been broadly studied in neonates. This review focuses on carbohydrate metabolism in monocytes and macrophages in neonates. We will exhibit pathways involving glycolysis, the tricarboxylic acid (TCA) cycle and oxidative phosphorylation and their role in shaping neonates' immune systems to a favorable tolerogenic state. More insight into these pathways will elucidate potential treatments targets in life-threatening conditions including neonatal sepsis or expose potential targets which can be used to induce tolerance in conditions where tolerance is harmfully impaired such as in autoimmune diseases.
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Affiliation(s)
| | - Klaus Tenbrock
- Department of Pediatrics, RWTH Aachen University, 52074 Aachen, Germany; (R.d.J.); (K.O.)
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Novakovic MM, Korshunov KS, Grant RA, Martin ME, Valencia HA, Budinger GRS, Radulovic J, Prakriya M. Astrocyte reactivity and inflammation-induced depression-like behaviors are regulated by Orai1 calcium channels. Nat Commun 2023; 14:5500. [PMID: 37679321 PMCID: PMC10485021 DOI: 10.1038/s41467-023-40968-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 08/17/2023] [Indexed: 09/09/2023] Open
Abstract
Astrocytes contribute to brain inflammation in neurological disorders but the molecular mechanisms controlling astrocyte reactivity and their relationship to neuroinflammatory endpoints are complex and poorly understood. In this study, we assessed the role of the calcium channel, Orai1, for astrocyte reactivity and inflammation-evoked depression behaviors in mice. Transcriptomics and metabolomics analysis indicated that deletion of Orai1 in astrocytes downregulates genes in inflammation and immunity, metabolism, and cell cycle pathways, and reduces cellular metabolites and ATP production. Systemic inflammation by peripheral lipopolysaccharide (LPS) increases hippocampal inflammatory markers in WT but not in astrocyte Orai1 knockout mice. Loss of Orai1 also blunts inflammation-induced astrocyte Ca2+ signaling and inhibitory neurotransmission in the hippocampus. In line with these cellular changes, Orai1 knockout mice showed amelioration of LPS-evoked depression-like behaviors including anhedonia and helplessness. These findings identify Orai1 as an important signaling hub controlling astrocyte reactivity and astrocyte-mediated brain inflammation that is commonly observed in many neurological disorders.
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Affiliation(s)
- Michaela M Novakovic
- Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, USA
| | - Kirill S Korshunov
- Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, USA
| | - Rogan A Grant
- Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, USA
| | - Megan E Martin
- Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, USA
| | - Hiam A Valencia
- Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, USA
| | - G R Scott Budinger
- Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, USA
| | - Jelena Radulovic
- Department of Neuroscience, Albert Einstein School of Medicine, Bronx, NY, 10461, USA
| | - Murali Prakriya
- Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, USA.
- Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, USA.
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Fan K, Chen K, Zan X, Zhi Y, Zhang X, Zhang X, Qiu J, Liu G, Li L, Tang L, Hu K, Wan J, Gong X, Yang Y, Zhang L. Negative regulation of pro-apoptotic AMPK/JNK pathway by itaconate in mice with fulminant liver injury. Cell Death Dis 2023; 14:486. [PMID: 37524706 PMCID: PMC10390640 DOI: 10.1038/s41419-023-06001-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 07/12/2023] [Accepted: 07/14/2023] [Indexed: 08/02/2023]
Abstract
Accumulating evidence indicates that metabolic responses are deeply integrated into signal transduction, which provides novel opportunities for the metabolic control of various disorders. Recent studies suggest that itaconate, a highly concerned bioactive metabolite catalyzed by immune responsive gene 1 (IRG1), is profoundly involved in the regulation of apoptosis, but the underlying mechanisms have not been fully understood. In the present study, the molecular mechanisms responsible for the apoptosis-modulatory activities of IRG1/itaconate have been investigated in mice with lipopolysaccharide (LPS)/D-galactosamine (D-Gal)-induced apoptotic liver injury. The results indicated that LPS/D-Gal exposure upregulated the level of IRG1 and itaconate. Deletion of IRG1 resulted in exacerbated hepatocytes apoptosis and liver injury. The phospho-antibody microarray analysis and immunoblot analysis indicated that IRG1 deletion enhanced the activation of AMP-activated protein kinase (AMPK)/c-jun-N-terminal kinase (JNK) pathway in LPS/D-Gal exposed mice. Mechanistically, IRG1 deficiency impaired the anti-oxidative nuclear factor erythroid-2 related factor 2 (Nrf2) signaling and then enhanced the activation of the redox-sensitive AMPK/JNK pathway that promotes hepatocytes apoptosis. Importantly, post-insult supplementation with 4-octyl itaconate (4-OI), a cell-permeable derivate of itaconate, resulted in beneficial outcomes in fulminant liver injury. Therefore, IRG1/itaconate might function as a negative regulator that controls AMPK-induced hepatocyte apoptosis in LPS/D-Gal-induced fulminant liver injury.
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Affiliation(s)
- Kerui Fan
- Department of Pathophysiology, Basic Medical College, Chongqing Medical University, Chongqing, China
- Laboratory of Stem Cell and Tissue Engineering, Chongqing Medical University, Chongqing, China
| | - Kun Chen
- Department of Pathophysiology, Basic Medical College, Chongqing Medical University, Chongqing, China
| | - Xinyan Zan
- Department of Pathophysiology, Basic Medical College, Chongqing Medical University, Chongqing, China
| | - Ying Zhi
- Department of Pathophysiology, Basic Medical College, Chongqing Medical University, Chongqing, China
| | - Xue Zhang
- Department of Pathophysiology, Basic Medical College, Chongqing Medical University, Chongqing, China
| | - Xinyue Zhang
- Department of Pathophysiology, Basic Medical College, Chongqing Medical University, Chongqing, China
| | - Jinghuan Qiu
- Department of Emergency, University-Town Hospital of Chongqing Medical University, 401331, Chongqing, China
| | - Gang Liu
- Department of Emergency, University-Town Hospital of Chongqing Medical University, 401331, Chongqing, China
| | - Longjiang Li
- Department of Pathophysiology, Basic Medical College, Chongqing Medical University, Chongqing, China
| | - Li Tang
- Department of Pathophysiology, Basic Medical College, Chongqing Medical University, Chongqing, China
| | - Kai Hu
- Laboratory of Stem Cell and Tissue Engineering, Chongqing Medical University, Chongqing, China
| | - Jingyuan Wan
- Department of Pharmacology, Chongqing Medical University, Chongqing, China
| | - Xianqiong Gong
- Hepatology Center, Xiamen Hospital of Traditional Chinese Medicine, Xiamen, Fujian Province, China
| | - Yongqiang Yang
- Department of Pathophysiology, Basic Medical College, Chongqing Medical University, Chongqing, China.
| | - Li Zhang
- Department of Pathophysiology, Basic Medical College, Chongqing Medical University, Chongqing, China.
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Chen C, Guo M, Zhao X, Zhao J, Chen L, He Z, Xu L, Zha Y. MicroRNA-7: A New Intervention Target for Inflammation and Related Diseases. Biomolecules 2023; 13:1185. [PMID: 37627250 PMCID: PMC10452300 DOI: 10.3390/biom13081185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Revised: 07/20/2023] [Accepted: 07/26/2023] [Indexed: 08/27/2023] Open
Abstract
MicroRNAs (miRNAs) are a class of small noncoding RNA that can regulate physiological and pathological processes through post-transcriptional regulatory gene expression. As an important member of the miRNAs family, microRNA-7 (miR-7) was first discovered in 2001 to play an important regulatory role in tissue and organ development. Studies have shown that miR-7 participates in various tissue and organ development processes, tumorigenesis, aging, and other processes by regulating different target molecules. Notably, a series of recent studies have determined that miR-7 plays a key regulatory role in the occurrence of inflammation and related diseases. In particular, miR-7 can affect the immune response of the body by influencing T cell activation, macrophage function, dendritic cell (DC) maturation, inflammatory body activation, and other mechanisms, which has important potential application value in the intervention of related diseases. This article reviews the current regulatory role of miR-7 in inflammation and related diseases, including viral infection, autoimmune hepatitis, inflammatory bowel disease, and encephalitis. It expounds on the molecular mechanism by which miR-7 regulates the occurrence of inflammatory diseases. Finally, the existing problems and future development directions of miR-7-based intervention on inflammation and related diseases are discussed to provide new references and help strengthen the understanding of the pathogenesis of inflammation and related diseases, as well as the development of new strategies for clinical intervention.
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Affiliation(s)
- Chao Chen
- School of Medicine, Guizhou University, Guiyang 550025, China
- Department of Immunology, Zunyi Medical University, Zunyi 563000, China
| | - Mengmeng Guo
- Department of Immunology, Zunyi Medical University, Zunyi 563000, China
- Specifc Key Laboratory of Gene Detection and Treatment of Guizhou Province, Zunyi 563000, China
| | - Xu Zhao
- Department of Immunology, Zunyi Medical University, Zunyi 563000, China
- Specifc Key Laboratory of Gene Detection and Treatment of Guizhou Province, Zunyi 563000, China
| | - Juanjuan Zhao
- Department of Immunology, Zunyi Medical University, Zunyi 563000, China
- Specifc Key Laboratory of Gene Detection and Treatment of Guizhou Province, Zunyi 563000, China
| | - Longqing Chen
- Department of Immunology, Zunyi Medical University, Zunyi 563000, China
- Specifc Key Laboratory of Gene Detection and Treatment of Guizhou Province, Zunyi 563000, China
| | - Zhixu He
- Collaborative Innovation Center of Tissue Damage Repair and Regeneration Medicine of Zunyi Medical University, Zunyi 563000, China
| | - Lin Xu
- Department of Immunology, Zunyi Medical University, Zunyi 563000, China
- Specifc Key Laboratory of Gene Detection and Treatment of Guizhou Province, Zunyi 563000, China
| | - Yan Zha
- School of Medicine, Guizhou University, Guiyang 550025, China
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30
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Straub RH, Pongratz G, Buttgereit F, Gaber T. [Energy metabolism of the immune system : Consequences in chronic inflammation]. Z Rheumatol 2023:10.1007/s00393-023-01389-4. [PMID: 37488246 DOI: 10.1007/s00393-023-01389-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/13/2023] [Indexed: 07/26/2023]
Abstract
BACKGROUND Energy is the currency of life. The systemic and intracellular energy metabolism plays an essential role for the energy supply of the resting and activated immune system and this also applies to chronic inflammatory diseases. OBJECTIVE This presentation examines both components of the systemic and cellular energy metabolism in health and chronic inflammation. MATERIAL AND METHODS A literature search was conducted using PubMed, Embase and the Cochrane Library. The information is presented in the form of a narrative review. RESULTS A chronically activated immune system acquires large amounts of energy-rich substrates that are lost for other functions of the body. In particular, the immune system and the brain are in competition. The consequences of this competition are many known diseases, such as fatigue, anxiety, depression, anorexia, sleep problems, sarcopenia, osteoporosis, insulin resistance, hypertension and others. The permanent change in the brain causes long-term alterations that stimulate disease sequelae even after disease remission. In the intracellular energy supply, chronic inflammation typically involves a conversion to glycolysis (to lactate, which has its own regulatory functions) and the pentose phosphate pathway in disorders of mitochondrial function. The chronic changes in immune cells of patients with rheumatoid arthritis (RA) lead to a disruption of the citric acid cycle (Krebs cycle). The hypoxic situation in the inflamed tissue stimulates many alterations. A differentiation is made between effector functions and regulatory functions of immune cells. CONCLUSION Based on the energy changes mentioned, novel treatment suggestions can be made in addition to those already known in energy metabolism.
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Affiliation(s)
- Rainer H Straub
- Labor für Experimentelle Rheumatologie und Neuroendokrin-Immunologie, Klinik und Poliklinik für Innere Medizin I, Universitätsklinikum Regensburg, 93042, Regensburg, Deutschland.
| | - Georg Pongratz
- Abteilung für Rheumatologie, Klinik für Gastroenterologie, Krankenhaus Barmherzige Brüder Regensburg, 93049, Regensburg, Deutschland
| | - Frank Buttgereit
- Medizinische Klinik mit Schwerpunkt Rheumatologie und Klinische Immunologie, Charité - Universitätsmedizin Berlin, Freie Universität Berlin und Humboldt-Universität zu Berlin, Berlin, Deutschland
| | - Timo Gaber
- Medizinische Klinik mit Schwerpunkt Rheumatologie und Klinische Immunologie, Charité - Universitätsmedizin Berlin, Freie Universität Berlin und Humboldt-Universität zu Berlin, Berlin, Deutschland
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Liu J, Cao C, Jin Y, Wang Y, Ma X, Li J, Guo S, Yang J, Niu J, Liang X. Induced neural stem cells suppressed neuroinflammation by inhibiting the microglial pyroptotic pathway in intracerebral hemorrhage rats. iScience 2023; 26:107022. [PMID: 37360683 PMCID: PMC10285565 DOI: 10.1016/j.isci.2023.107022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 04/10/2023] [Accepted: 05/30/2023] [Indexed: 06/28/2023] Open
Abstract
Intracerebral hemorrhage usually manifests as strong neuroinflammation and neurological deficits. There is an urgent need to explore effective methods for the treatment of intracerebral hemorrhage. The therapeutic effect and the possible mechanism of induced neural stem cell transplantation in an intracerebral hemorrhage rat model are still unclear. Our results showed that transplantation of induced neural stem cells could improve neurological deficits by inhibiting inflammation in an intracerebral hemorrhage rat model. Additionally, induced neural stem cell treatment could effectively suppress microglial pyroptosis, which might occur through inhibiting the NF-κB signaling pathway. Induced neural stem cells could also regulate the polarization of microglia and promote the transition of microglia from pro-inflammatory phenotypes to anti-inflammatory phenotypes to exert their anti-inflammatory effects. Overall, induced neural stem cells may be a promising tool for the treatment of intracerebral hemorrhage and other neuroinflammatory diseases.
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Affiliation(s)
- Jiaxin Liu
- Key Laboratory of Ningxia Stem Cell and Regenerative Medicine, Institute of Medical Sciences, General Hospital of Ningxia Medical University, 750001 Yinchuan, China
| | - Chuanshang Cao
- Key Laboratory of Ningxia Stem Cell and Regenerative Medicine, Institute of Medical Sciences, General Hospital of Ningxia Medical University, 750001 Yinchuan, China
| | - Yiran Jin
- Key Laboratory of Ningxia Stem Cell and Regenerative Medicine, Institute of Medical Sciences, General Hospital of Ningxia Medical University, 750001 Yinchuan, China
| | - Yan Wang
- Key Laboratory of Ningxia Stem Cell and Regenerative Medicine, Institute of Medical Sciences, General Hospital of Ningxia Medical University, 750001 Yinchuan, China
| | - Xiaona Ma
- Key Laboratory of Ningxia Stem Cell and Regenerative Medicine, Institute of Medical Sciences, General Hospital of Ningxia Medical University, 750001 Yinchuan, China
| | - Jiahui Li
- Key Laboratory of Ningxia Stem Cell and Regenerative Medicine, Institute of Medical Sciences, General Hospital of Ningxia Medical University, 750001 Yinchuan, China
| | - Songlin Guo
- Key Laboratory of Ningxia Stem Cell and Regenerative Medicine, Institute of Medical Sciences, General Hospital of Ningxia Medical University, 750001 Yinchuan, China
| | - Jiancheng Yang
- Key Laboratory of Ningxia Stem Cell and Regenerative Medicine, Institute of Medical Sciences, General Hospital of Ningxia Medical University, 750001 Yinchuan, China
| | - Jianguo Niu
- Ningxia Key Laboratory of Cerebrocranial Diseases, Ningxia Medical University, 750004 Yinchuan, China
| | - Xueyun Liang
- Key Laboratory of Ningxia Stem Cell and Regenerative Medicine, Institute of Medical Sciences, General Hospital of Ningxia Medical University, 750001 Yinchuan, China
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Shen P, Serve S, Wu P, Liu X, Dai Y, Durán-Hernández N, Nguyen DTM, Fuchs M, Maleitzke T, Reisener MJ, Dzamukova M, Nussbaumer K, Brunner TM, Li Y, Holecska V, Heinz GA, Heinrich F, Durek P, Katsoula G, Gwinner C, Jung T, Zeggini E, Winkler T, Mashreghi MF, Pumberger M, Perka C, Löhning M. NOS inhibition reverses TLR2-induced chondrocyte dysfunction and attenuates age-related osteoarthritis. Proc Natl Acad Sci U S A 2023; 120:e2207993120. [PMID: 37428931 PMCID: PMC10629581 DOI: 10.1073/pnas.2207993120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Accepted: 04/20/2023] [Indexed: 07/12/2023] Open
Abstract
Osteoarthritis (OA) is a joint disease featuring cartilage breakdown and chronic pain. Although age and joint trauma are prominently associated with OA occurrence, the trigger and signaling pathways propagating their pathogenic aspects are ill defined. Following long-term catabolic activity and traumatic cartilage breakdown, debris accumulates and can trigger Toll-like receptors (TLRs). Here we show that TLR2 stimulation suppressed the expression of matrix proteins and induced an inflammatory phenotype in human chondrocytes. Further, TLR2 stimulation impaired chondrocyte mitochondrial function, resulting in severely reduced adenosine triphosphate (ATP) production. RNA-sequencing analysis revealed that TLR2 stimulation upregulated nitric oxide synthase 2 (NOS2) expression and downregulated mitochondria function-associated genes. NOS inhibition partially restored the expression of these genes, and rescued mitochondrial function and ATP production. Correspondingly, Nos2-/- mice were protected from age-related OA development. Taken together, the TLR2-NOS axis promotes human chondrocyte dysfunction and murine OA development, and targeted interventions may provide therapeutic and preventive approaches in OA.
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Affiliation(s)
- Ping Shen
- Pitzer Laboratory of Osteoarthritis Research, German Rheumatism Research Center, a Leibniz Institute, 10117Berlin, Germany
- Experimental Immunology and Osteoarthritis Research, Department of Rheumatology and Clinical Immunology, Charité–Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117Berlin, Germany
- Stem Cell and Biotherapy Engineering Research Center of Henan Province, College of Life Sciences and Technology, Xinxiang Medical University, 453003Xinxiang, China
| | - Sebastian Serve
- Pitzer Laboratory of Osteoarthritis Research, German Rheumatism Research Center, a Leibniz Institute, 10117Berlin, Germany
- Experimental Immunology and Osteoarthritis Research, Department of Rheumatology and Clinical Immunology, Charité–Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117Berlin, Germany
| | - Peihua Wu
- Pitzer Laboratory of Osteoarthritis Research, German Rheumatism Research Center, a Leibniz Institute, 10117Berlin, Germany
- Experimental Immunology and Osteoarthritis Research, Department of Rheumatology and Clinical Immunology, Charité–Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117Berlin, Germany
| | - Xiaohui Liu
- Pitzer Laboratory of Osteoarthritis Research, German Rheumatism Research Center, a Leibniz Institute, 10117Berlin, Germany
- Experimental Immunology and Osteoarthritis Research, Department of Rheumatology and Clinical Immunology, Charité–Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117Berlin, Germany
| | - Yujie Dai
- Pitzer Laboratory of Osteoarthritis Research, German Rheumatism Research Center, a Leibniz Institute, 10117Berlin, Germany
- Experimental Immunology and Osteoarthritis Research, Department of Rheumatology and Clinical Immunology, Charité–Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117Berlin, Germany
| | - Nayar Durán-Hernández
- Pitzer Laboratory of Osteoarthritis Research, German Rheumatism Research Center, a Leibniz Institute, 10117Berlin, Germany
- Experimental Immunology and Osteoarthritis Research, Department of Rheumatology and Clinical Immunology, Charité–Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117Berlin, Germany
| | - Dan Thi Mai Nguyen
- Pitzer Laboratory of Osteoarthritis Research, German Rheumatism Research Center, a Leibniz Institute, 10117Berlin, Germany
- Experimental Immunology and Osteoarthritis Research, Department of Rheumatology and Clinical Immunology, Charité–Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117Berlin, Germany
| | - Michael Fuchs
- Department of Orthopaedic Surgery, University of Ulm, 89081Ulm, Germany
| | - Tazio Maleitzke
- Center for Musculoskeletal Surgery, Charité–Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117Berlin, Germany
- Julius Wolff Institute, Berlin Institute of Health at Charité–Universitätsmedizin Berlin, 13353Berlin, Germany
- Berlin Institute of Health Charité Clinician Scientist Program, BIH Biomedical Innovation Academy, Berlin Institute of Health at Charité–Universitätsmedizin, 10178Berlin, Germany
| | - Marie-Jacqueline Reisener
- Center for Musculoskeletal Surgery, Charité–Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117Berlin, Germany
| | - Maria Dzamukova
- Pitzer Laboratory of Osteoarthritis Research, German Rheumatism Research Center, a Leibniz Institute, 10117Berlin, Germany
- Experimental Immunology and Osteoarthritis Research, Department of Rheumatology and Clinical Immunology, Charité–Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117Berlin, Germany
| | - Katrin Nussbaumer
- Pitzer Laboratory of Osteoarthritis Research, German Rheumatism Research Center, a Leibniz Institute, 10117Berlin, Germany
| | - Tobias M. Brunner
- Pitzer Laboratory of Osteoarthritis Research, German Rheumatism Research Center, a Leibniz Institute, 10117Berlin, Germany
- Experimental Immunology and Osteoarthritis Research, Department of Rheumatology and Clinical Immunology, Charité–Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117Berlin, Germany
| | - Yonghai Li
- Stem Cell and Biotherapy Engineering Research Center of Henan Province, College of Life Sciences and Technology, Xinxiang Medical University, 453003Xinxiang, China
| | - Vivien Holecska
- Pitzer Laboratory of Osteoarthritis Research, German Rheumatism Research Center, a Leibniz Institute, 10117Berlin, Germany
- Experimental Immunology and Osteoarthritis Research, Department of Rheumatology and Clinical Immunology, Charité–Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117Berlin, Germany
| | - Gitta A. Heinz
- Systems Rheumatology and Therapeutic Gene Regulation, German Rheumatism Research Center, a Leibniz Institute, 10117Berlin, Germany
| | - Frederik Heinrich
- Systems Rheumatology and Therapeutic Gene Regulation, German Rheumatism Research Center, a Leibniz Institute, 10117Berlin, Germany
| | - Pawel Durek
- Systems Rheumatology and Therapeutic Gene Regulation, German Rheumatism Research Center, a Leibniz Institute, 10117Berlin, Germany
| | - Georgia Katsoula
- Technical University of Munich School of Medicine, Technical University of Munich, Graduate School of Experimental Medicine, 81675Munich, Germany
- Institute of Translational Genomics, Helmholtz Zentrum München – German Research Center for Environmental Health, 85764Neuherberg, Germany
| | - Clemens Gwinner
- Center for Musculoskeletal Surgery, Charité–Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117Berlin, Germany
| | - Tobias Jung
- Center for Musculoskeletal Surgery, Charité–Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117Berlin, Germany
| | - Eleftheria Zeggini
- Institute of Translational Genomics, Helmholtz Zentrum München – German Research Center for Environmental Health, 85764Neuherberg, Germany
- Technical University of Munich School of Medicine, Technical University of Munich and Klinikum Rechts der Isar, 81675Munich, Germany
| | - Tobias Winkler
- Center for Musculoskeletal Surgery, Charité–Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117Berlin, Germany
- Julius Wolff Institute, Berlin Institute of Health at Charité–Universitätsmedizin Berlin, 13353Berlin, Germany
- Berlin Institute of Health Center for Regenerative Therapies, Berlin Institute of Health at Charité ‒ Universitätsmedizin Berlin, 13353Berlin, Germany
| | - Mir-Farzin Mashreghi
- Systems Rheumatology and Therapeutic Gene Regulation, German Rheumatism Research Center, a Leibniz Institute, 10117Berlin, Germany
| | - Matthias Pumberger
- Center for Musculoskeletal Surgery, Charité–Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117Berlin, Germany
| | - Carsten Perka
- Center for Musculoskeletal Surgery, Charité–Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117Berlin, Germany
| | - Max Löhning
- Pitzer Laboratory of Osteoarthritis Research, German Rheumatism Research Center, a Leibniz Institute, 10117Berlin, Germany
- Experimental Immunology and Osteoarthritis Research, Department of Rheumatology and Clinical Immunology, Charité–Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117Berlin, Germany
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Liqiang S, Fang-Hui L, Minghui Q, Yanan Y, Haichun C. Free fatty acids and peripheral blood mononuclear cells (PBMC) are correlated with chronic inflammation in obesity. Lipids Health Dis 2023; 22:93. [PMID: 37403139 DOI: 10.1186/s12944-023-01842-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 06/03/2023] [Indexed: 07/06/2023] Open
Abstract
Obesity-related chronic inflammation is closely related to the ability of immune cells to adapt to the body's needs, research has shown that excess FAs can further activate pro-inflammatory transcription factors in the nucleus by interacting with various receptors such as CD36 and TLR4, thereby affecting the inflammatory state of cells. However, how the profile of various fatty acids in the blood of obese individuals is associated with chronic inflammation remains unclear. OBJECTIVE The biomarkers associated with obesity were identified from 40 fatty acids (FAs) in the blood, and analyze the relationship between the biomarkers and chronic inflammation. Furthermore, by analyzing the difference in the expression of CD36, TLR4 and NF-κB p65 in peripheral blood mononuclear cells (PBMC) between obese and standard weight people, understand that immunophenotype PBMC is associated with chronic inflammation. METHODS This study is a cross-sectional study. Participants were recruited from the Yangzhou Lipan weight loss training camp from May 2020 to July 2020. The sample size was 52 individuals, including 25 in the normal weight group and 27 in the obesity group. Individuals with obesity and controls of normal weight were recruited to identify biomarkers associated with obesity from 40 fatty acids in the blood; correlation analysis was conducted between the screened potential biomarkers FAs and the chronic inflammation index hs-CRP to identify FA biomarkers associated with chronic inflammation. Changes in the fatty acid receptor CD36, inflammatory receptor TLR4, and inflammatory nuclear transcription factor NF-κB p65 in PBMC subsets were used to further test the relationship between fatty acids and the inflammatory state in individuals with obesity. RESULTS 23 potential FA biomarkers for obesity were screened, eleven of the potential obesity biomarkers were also significantly related to hs-CRP. Compared to the control group, in monocytes the obesity group expressed higher TLR4, CD36, and NF-κB p65 in lymphocytes, the obesity group expressed higher TLR4 and CD36; and in granulocytes the obesity group expressed higher CD36. CONCLUSION Blood FAs are associated with obesity and are associated with chronic inflammation through increased CD36, TLR4, and NF-κB p65 in monocytes.
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Affiliation(s)
- Su Liqiang
- Key Lab of Aquatic Sports Training Monitoring and Intervention of General Administration of Sport of China, Physical Education College, Jiangxi Normal University, Nanchang, 330022, Jiangxi, China
| | - Li Fang-Hui
- School of Sport Sciences, Nanjing Normal University, Nanjing, 210023, Jiangsu, China
| | - Quan Minghui
- School of Kinesiology, Shanghai University of Sport, Shanghai, 200438, China
| | - Yang Yanan
- Key Lab of Aquatic Sports Training Monitoring and Intervention of General Administration of Sport of China, Physical Education College, Jiangxi Normal University, Nanchang, 330022, Jiangxi, China
| | - Chen Haichun
- Key Lab of Aquatic Sports Training Monitoring and Intervention of General Administration of Sport of China, School of Physical Education and Sport Science, Fujian Normal University, Fuzhou, 350108, Fujian, China.
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Kalyanaraman B, Cheng G, Hardy M, You M. OXPHOS-targeting drugs in oncology: new perspectives. Expert Opin Ther Targets 2023; 27:939-952. [PMID: 37736880 PMCID: PMC11034819 DOI: 10.1080/14728222.2023.2261631] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 09/18/2023] [Indexed: 09/23/2023]
Abstract
INTRODUCTION Drugs targeting mitochondria are emerging as promising antitumor therapeutics in preclinical models. However, a few of these drugs have shown clinical toxicity. Developing mitochondria-targeted modified natural compounds and US FDA-approved drugs with increased therapeutic index in cancer is discussed as an alternative strategy. AREAS COVERED Triphenylphosphonium cation (TPP+)-based drugs selectively accumulate in the mitochondria of cancer cells due to their increased negative membrane potential, target the oxidative phosphorylation proteins, inhibit mitochondrial respiration, and inhibit tumor proliferation. TPP+-based drugs exert minimal toxic side effects in rodents and humans. These drugs can sensitize radiation and immunotherapies. EXPERT OPINION TPP+-based drugs targeting the tumor mitochondrial electron transport chain are a new class of oxidative phosphorylation inhibitors with varying antiproliferative and antimetastatic potencies. Some of these TPP+-based agents, which are synthesized from naturally occurring molecules and FDA-approved drugs, have been tested in mice and did not show notable toxicity, including neurotoxicity, when used at doses under the maximally tolerated dose. Thus, more effort should be directed toward the clinical translation of TPP+-based OXPHOS-inhibiting drugs in cancer prevention and treatment.
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Affiliation(s)
- Balaraman Kalyanaraman
- Department of Biophysics, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, United States
| | - Gang Cheng
- Department of Biophysics, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, United States
| | - Micael Hardy
- Aix Marseille Univ, CNRS, ICR, UMR 7273, Marseille 13013, France
| | - Ming You
- Center for Cancer Prevention, Houston Methodist Research Institute, 6670 Bertner Avenue, Houston, TX 77030, United States
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Yu Z, Peng Y, Gao J, Zhou M, Shi L, Zhao F, Wang C, Tian X, Feng L, Huo X, Zhang B, Liu M, Fang D, Ma X. The p23 co-chaperone is a succinate-activated COX-2 transcription factor in lung adenocarcinoma tumorigenesis. SCIENCE ADVANCES 2023; 9:eade0387. [PMID: 37390202 PMCID: PMC10313168 DOI: 10.1126/sciadv.ade0387] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 05/30/2023] [Indexed: 07/02/2023]
Abstract
P23, historically known as a heat shock protein 90 (HSP90) co-chaperone, exerts some of its critical functions in an HSP90-independent manner, particularly when it translocates into the nucleus. The molecular nature underlying how this HSP90-independent p23 function is achieved remains as a biological mystery. Here, we found that p23 is a previously unidentified transcription factor of COX-2, and its nuclear localization predicts the poor clinical outcomes. Intratumor succinate promotes p23 succinylation at K7, K33, and K79, which drives its nuclear translocation for COX-2 transcription and consequently fascinates tumor growth. We then identified M16 as a potent p23 succinylation inhibitor from 1.6 million compounds through a combined virtual and biological screening. M16 inhibited p23 succinylation and nuclear translocation, attenuated COX-2 transcription in a p23-dependent manner, and markedly suppressed tumor growth. Therefore, our study defines p23 as a succinate-activated transcription factor in tumor progression and provides a rationale for inhibiting p23 succinylation as an anticancer chemotherapy.
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Affiliation(s)
- Zhenlong Yu
- College of Pharmacy, the Second Affiliated Hospital, Dalian Medical University, Dalian 116000, China
| | - Yulin Peng
- College of Pharmacy, the Second Affiliated Hospital, Dalian Medical University, Dalian 116000, China
| | - Jian Gao
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou 221004, China
- School of Medicine, Anhui University of Science and Technology, Huainan 232001, China
| | - Meirong Zhou
- College of Pharmacy, the Second Affiliated Hospital, Dalian Medical University, Dalian 116000, China
| | - Lei Shi
- College of Pharmacy, the Second Affiliated Hospital, Dalian Medical University, Dalian 116000, China
| | - Feng Zhao
- College of Pharmacy, the Second Affiliated Hospital, Dalian Medical University, Dalian 116000, China
| | - Chao Wang
- College of Pharmacy, the Second Affiliated Hospital, Dalian Medical University, Dalian 116000, China
| | - Xiangge Tian
- College of Pharmacy, the Second Affiliated Hospital, Dalian Medical University, Dalian 116000, China
| | - Lei Feng
- College of Pharmacy, the Second Affiliated Hospital, Dalian Medical University, Dalian 116000, China
| | - Xiaokui Huo
- College of Pharmacy, the Second Affiliated Hospital, Dalian Medical University, Dalian 116000, China
| | - Baojing Zhang
- College of Pharmacy, the Second Affiliated Hospital, Dalian Medical University, Dalian 116000, China
| | - Min Liu
- Neurology Department, Dalian University Affiliated Xinhua Hospital, Dalian 116021, China
| | - Deyu Fang
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Xiaochi Ma
- College of Pharmacy, the Second Affiliated Hospital, Dalian Medical University, Dalian 116000, China
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Niu M, Zhou Z, Wang L, Yang J, Sun M, Lv X, Zhang F. Association of triglyceride-glucose index with myocardial injury post-stroke in older patients with first-ever ischemic stroke. BMC Geriatr 2023; 23:357. [PMID: 37291516 PMCID: PMC10249284 DOI: 10.1186/s12877-023-04041-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 05/15/2023] [Indexed: 06/10/2023] Open
Abstract
BACKGROUND Myocardial injury post-stroke is a common sequela of acute stroke. Triglyceride-glucose index (TyG index), a valuable surrogate indicator of insulin resistance, has been suggested to be closely related to cardiovascular outcomes. However, it is unknown whether the TyG index is independently associated with a higher risk of myocardial injury post-stroke. We therefore investigated the longitudinal association between TyG index and risk of myocardial injury post-stroke in older patients with first-ever ischemic stroke and no prior cardiovascular comorbidities. METHODS We included older patients with first-ever ischemic stroke and no prior cardiovascular comorbidities between January 2021 to December 2021. The individuals were stratified into low and high TyG index groups according to the optimal cutoff value with TyG index. We performed logistic regression analysis, propensity score matching (PSM) analysis, restricted cubic spline analysis, and subgroup analyses to explore the longitudinal association between TyG index and risk of myocardial injury post-stroke. RESULTS We included 386 individuals with a median age of 69.8 years (interquartile range: 66.6, 75.3). The optimal TyG index cut-off for predicting myocardial injury post-stroke was 8.9 (sensitivity 67.8%; specificity 75.5%; area under curve 0.701). Multivariate logistic regression analysis revealed that the risk of genesis of myocardial injury post-stroke increased with elevated TyG index (odds ratio [OR], 2.333; 95% confidence interval [CI], 1.201-4.585; P = 0.013). Furthermore, all covariates were well balanced between the two groups. The longitudinal association between TyG index and myocardial injury post-stroke remained significantly robust (OR: 2.196; 95% CI: 1.416-3.478; P < 0.001) after PSM adjustment. CONCLUSION Individuals with an elevated TyG index were more susceptible to having an increased risk of myocardial injury post-stroke. TyG index thus might be served as a complementary approach for optimized-for-risk stratification in older patients with first-ever ischemic stroke and no prior cardiovascular comorbidities.
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Affiliation(s)
- Mu Niu
- Department of Neurology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou Medical University, Xuzhou, 221002, Jiangsu, China
| | - Zhikang Zhou
- Department of Anesthesiology, The First Medical Center, Chinese PLA General Hospital, Beijing, 100853, China
| | - Long Wang
- Department of Pain Medicine, The First Medical Center, Chinese PLA General Hospital, Beijing, 100853, China
| | - Jian Yang
- Department of Neurology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou Medical University, Xuzhou, 221002, Jiangsu, China
| | - Miao Sun
- Department of Anesthesiology, The First Medical Center, Chinese PLA General Hospital, Beijing, 100853, China.
| | - Xin Lv
- Department of Anesthesiology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, 200433, China.
| | - Faqiang Zhang
- Department of Anesthesiology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, 200433, China.
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Yang L, Chu Z, Liu M, Zou Q, Li J, Liu Q, Wang Y, Wang T, Xiang J, Wang B. Amino acid metabolism in immune cells: essential regulators of the effector functions, and promising opportunities to enhance cancer immunotherapy. J Hematol Oncol 2023; 16:59. [PMID: 37277776 DOI: 10.1186/s13045-023-01453-1] [Citation(s) in RCA: 37] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 05/13/2023] [Indexed: 06/07/2023] Open
Abstract
Amino acids are basic nutrients for immune cells during organ development, tissue homeostasis, and the immune response. Regarding metabolic reprogramming in the tumor microenvironment, dysregulation of amino acid consumption in immune cells is an important underlying mechanism leading to impaired anti-tumor immunity. Emerging studies have revealed that altered amino acid metabolism is tightly linked to tumor outgrowth, metastasis, and therapeutic resistance through governing the fate of various immune cells. During these processes, the concentration of free amino acids, their membrane bound transporters, key metabolic enzymes, and sensors such as mTOR and GCN2 play critical roles in controlling immune cell differentiation and function. As such, anti-cancer immune responses could be enhanced by supplement of specific essential amino acids, or targeting the metabolic enzymes or their sensors, thereby developing novel adjuvant immune therapeutic modalities. To further dissect metabolic regulation of anti-tumor immunity, this review summarizes the regulatory mechanisms governing reprogramming of amino acid metabolism and their effects on the phenotypes and functions of tumor-infiltrating immune cells to propose novel approaches that could be exploited to rewire amino acid metabolism and enhance cancer immunotherapy.
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Affiliation(s)
- Luming Yang
- Chongqing University Medical School, Chongqing, 400044, People's Republic of China
- Department of Gastroenterology and Chongqing Key Laboratory of Digestive Malignancies, Daping Hospital, Army Medical University (Third Military Medical University), 10# Changjiang Branch Road, Yuzhong District, Chongqing, 400042, People's Republic of China
| | - Zhaole Chu
- Department of Gastroenterology and Chongqing Key Laboratory of Digestive Malignancies, Daping Hospital, Army Medical University (Third Military Medical University), 10# Changjiang Branch Road, Yuzhong District, Chongqing, 400042, People's Republic of China
| | - Meng Liu
- Chongqing University Medical School, Chongqing, 400044, People's Republic of China
- Department of Gastroenterology and Chongqing Key Laboratory of Digestive Malignancies, Daping Hospital, Army Medical University (Third Military Medical University), 10# Changjiang Branch Road, Yuzhong District, Chongqing, 400042, People's Republic of China
| | - Qiang Zou
- Chongqing University Medical School, Chongqing, 400044, People's Republic of China
- Department of Gastroenterology and Chongqing Key Laboratory of Digestive Malignancies, Daping Hospital, Army Medical University (Third Military Medical University), 10# Changjiang Branch Road, Yuzhong District, Chongqing, 400042, People's Republic of China
| | - Jinyang Li
- Department of Gastroenterology and Chongqing Key Laboratory of Digestive Malignancies, Daping Hospital, Army Medical University (Third Military Medical University), 10# Changjiang Branch Road, Yuzhong District, Chongqing, 400042, People's Republic of China
| | - Qin Liu
- Department of Gastroenterology and Chongqing Key Laboratory of Digestive Malignancies, Daping Hospital, Army Medical University (Third Military Medical University), 10# Changjiang Branch Road, Yuzhong District, Chongqing, 400042, People's Republic of China
| | - Yazhou Wang
- Chongqing University Medical School, Chongqing, 400044, People's Republic of China.
| | - Tao Wang
- Department of Gastroenterology and Chongqing Key Laboratory of Digestive Malignancies, Daping Hospital, Army Medical University (Third Military Medical University), 10# Changjiang Branch Road, Yuzhong District, Chongqing, 400042, People's Republic of China.
| | - Junyu Xiang
- Department of Gastroenterology and Chongqing Key Laboratory of Digestive Malignancies, Daping Hospital, Army Medical University (Third Military Medical University), 10# Changjiang Branch Road, Yuzhong District, Chongqing, 400042, People's Republic of China.
| | - Bin Wang
- Department of Gastroenterology and Chongqing Key Laboratory of Digestive Malignancies, Daping Hospital, Army Medical University (Third Military Medical University), 10# Changjiang Branch Road, Yuzhong District, Chongqing, 400042, People's Republic of China.
- Institute of Pathology and Southwest Cancer Center, Key Laboratory of Tumor Immunopathology of Ministry of Education of China, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, 400038, People's Republic of China.
- Jinfeng Laboratory, Chongqing, 401329, People's Republic of China.
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Sun C, Wang A, Zhou Y, Chen P, Wang X, Huang J, Gao J, Wang X, Shu L, Lu J, Dai W, Bu Z, Ji J, He J. Spatially resolved multi-omics highlights cell-specific metabolic remodeling and interactions in gastric cancer. Nat Commun 2023; 14:2692. [PMID: 37164975 PMCID: PMC10172194 DOI: 10.1038/s41467-023-38360-5] [Citation(s) in RCA: 28] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 04/27/2023] [Indexed: 05/12/2023] Open
Abstract
Mapping tumor metabolic remodeling and their spatial crosstalk with surrounding non-tumor cells can fundamentally improve our understanding of tumor biology, facilitates the designing of advanced therapeutic strategies. Here, we present an integration of mass spectrometry imaging-based spatial metabolomics and lipidomics with microarray-based spatial transcriptomics to hierarchically visualize the intratumor metabolic heterogeneity and cell metabolic interactions in same gastric cancer sample. Tumor-associated metabolic reprogramming is imaged at metabolic-transcriptional levels, and maker metabolites, lipids, genes are connected in metabolic pathways and colocalized in the heterogeneous cancer tissues. Integrated data from spatial multi-omics approaches coherently identify cell types and distributions within the complex tumor microenvironment, and an immune cell-dominated "tumor-normal interface" region where tumor cells contact adjacent tissues are characterized with distinct transcriptional signatures and significant immunometabolic alterations. Our approach for mapping tissue molecular architecture provides highly integrated picture of intratumor heterogeneity, and transform the understanding of cancer metabolism at systemic level.
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Affiliation(s)
- Chenglong Sun
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
- Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250014, China
- Key Laboratory for Natural Active Pharmaceutical Constituents Research in Universities of Shandong Province, School of Pharmaceutical Sciences, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250014, China
| | - Anqiang Wang
- Gastrointestinal Cancer Center, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital and Institute, Beijing, 100142, China
| | - Yanhe Zhou
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Panpan Chen
- Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250014, China
- Key Laboratory for Natural Active Pharmaceutical Constituents Research in Universities of Shandong Province, School of Pharmaceutical Sciences, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250014, China
| | - Xiangyi Wang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Jianpeng Huang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Jiamin Gao
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Xiao Wang
- Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250014, China
- Key Laboratory for Natural Active Pharmaceutical Constituents Research in Universities of Shandong Province, School of Pharmaceutical Sciences, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250014, China
| | - Liebo Shu
- Shanghai Luming Biological Technology co.Ltd, Shanghai, 201102, China
| | - Jiawei Lu
- Shanghai Luming Biological Technology co.Ltd, Shanghai, 201102, China
| | - Wentao Dai
- NHC Key Lab of Reproduction Regulation (Shanghai Institute for Biomedical and Pharmaceutical Technologies) & Shanghai Engineering Research Center of Pharmaceutical Translation, Fudan University, Shanghai, 200080, China.
- Shanghai Key Laboratory of Gastric Neoplasms, Department of General Surgery, Shanghai Institute of Digestive Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
| | - Zhaode Bu
- Gastrointestinal Cancer Center, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital and Institute, Beijing, 100142, China.
| | - Jiafu Ji
- Gastrointestinal Cancer Center, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital and Institute, Beijing, 100142, China.
| | - Jiuming He
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China.
- NMPA Key Laboratory of safety research and evaluation of Innovative Drug, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China.
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Geng K, Ma X, Jiang Z, Huang W, Gu J, Wang P, Luo L, Xu Y, Xu Y. High glucose-induced STING activation inhibits diabetic wound healing through promoting M1 polarization of macrophages. Cell Death Discov 2023; 9:136. [PMID: 37100799 PMCID: PMC10133226 DOI: 10.1038/s41420-023-01425-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 03/22/2023] [Accepted: 04/03/2023] [Indexed: 04/28/2023] Open
Abstract
Diabetic wound (DW) is characterized by elevated pro-inflammatory cytokines and cellular dysfunction consistent with elevated reactive oxygen species (ROS) levels. Recent advances in immunology have dissected molecular pathways involved in the innate immune system where cytoplasmic DNA can trigger STING-dependent inflammatory responses and play an important role in metabolic-related diseases. We investigated whether STING regulates inflammation and cellular dysfunction in DW healing. We found that STING and M1 macrophages were increased in wound tissues from DW in patients and mice and delayed the wound closure. We also noticed that the massively released ROS in the High glucose (HG) environment activated STING signaling by inducing the escape of mtDNA to the cytoplasm, inducing macrophage polarization into a pro-inflammatory phenotype, releasing pro-inflammatory cytokines, and exacerbating endothelial cell dysfunction. In Conclusion, mtDNA-cGAS-STING pathway activation under diabetic metabolic stress is an important mechanism of DW refractory healing. While using STING gene-edited macrophages for wound treatment by cell therapy can induce the polarization of wound macrophages from pro-inflammatory M1 to anti-inflammatory M2, promote angiogenesis, and collagen deposition to accelerate DW healing. STING may be a promising therapeutic target for DW.
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Affiliation(s)
- Kang Geng
- Faculty of Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macao
- Department of Endocrinology and Metabolism, Metabolic Vascular Disease Key Laboratory of Sichuan Province, Sichuan Clinical Research Center for Nephropathy, Cardiovascular and Metabolic Diseases Key Laboratory of Luzhou, Luzhou, Sichuan, PR China
- Department of plastic and burns surgery, National Key Clinical Construction Specialty, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, PR China
| | - Xiumei Ma
- Faculty of Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macao
- Department of Endocrinology and Metabolism, Metabolic Vascular Disease Key Laboratory of Sichuan Province, Sichuan Clinical Research Center for Nephropathy, Cardiovascular and Metabolic Diseases Key Laboratory of Luzhou, Luzhou, Sichuan, PR China
| | - Zongzhe Jiang
- Department of Endocrinology and Metabolism, Metabolic Vascular Disease Key Laboratory of Sichuan Province, Sichuan Clinical Research Center for Nephropathy, Cardiovascular and Metabolic Diseases Key Laboratory of Luzhou, Luzhou, Sichuan, PR China
| | - Wei Huang
- Department of Endocrinology and Metabolism, Metabolic Vascular Disease Key Laboratory of Sichuan Province, Sichuan Clinical Research Center for Nephropathy, Cardiovascular and Metabolic Diseases Key Laboratory of Luzhou, Luzhou, Sichuan, PR China
| | - Junling Gu
- Endocrinology Department, The Second People's Hospital of Yibin‧West China Yibin Hospital, Sichuan University, Yibin, Sichuan, PR China
| | - Peng Wang
- Faculty of Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macao
- Department of Endocrinology and Metabolism, Metabolic Vascular Disease Key Laboratory of Sichuan Province, Sichuan Clinical Research Center for Nephropathy, Cardiovascular and Metabolic Diseases Key Laboratory of Luzhou, Luzhou, Sichuan, PR China
| | - Lifang Luo
- Department of Endocrinology and Metabolism, Metabolic Vascular Disease Key Laboratory of Sichuan Province, Sichuan Clinical Research Center for Nephropathy, Cardiovascular and Metabolic Diseases Key Laboratory of Luzhou, Luzhou, Sichuan, PR China
| | - Youhua Xu
- Faculty of Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macao.
| | - Yong Xu
- Faculty of Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macao.
- Department of Endocrinology and Metabolism, Metabolic Vascular Disease Key Laboratory of Sichuan Province, Sichuan Clinical Research Center for Nephropathy, Cardiovascular and Metabolic Diseases Key Laboratory of Luzhou, Luzhou, Sichuan, PR China.
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Keller CW, Adamopoulos IE, Lünemann JD. Autophagy pathways in autoimmune diseases. J Autoimmun 2023; 136:103030. [PMID: 37001435 PMCID: PMC10709713 DOI: 10.1016/j.jaut.2023.103030] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 03/10/2023] [Accepted: 03/17/2023] [Indexed: 03/31/2023]
Abstract
Autophagy comprises a growing range of cellular pathways, which occupy central roles in response to energy deprivation, organelle turnover and proteostasis. Over the years, autophagy has been increasingly linked to governing several aspects of immunity, including host defence against various pathogens, unconventional secretion of cytokines and antigen presentation. While canonical autophagy-mediated antigen processing in thymic epithelial cells supports the generation of a self-tolerant CD4+ T cell repertoire, mounting evidence suggests that deregulated autophagy pathways contribute to or sustain autoimmune responses. In animal models of multiple sclerosis (MS), non-canonical autophagy pathways such as microtubule-associated protein 1 A/1 B-light chain 3 (LC3)-associated phagocytosis can contribute to major histocompatibility complex (MHC) class II presentation of autoantigen, thereby amplifying autoreactive CD4+ T cell responses. In systemic lupus erythematosus (SLE), increased type 1 interferon production is linked to excessive autophagy in plasmacytoid dendritic cells (DCs). In rheumatoid arthritis (RA), autophagy proteins contribute to pathological citrullination of autoantigen. Immunotherapies effective in autoimmune diseases modulate autophagy functions, and strategies harnessing autophagy pathways to restrain autoimmune responses have been developed. This review illustrates recent insights in how autophagy, distinct autophagy pathways and autophagy protein functions intersect with the evolution and progression of autoimmune diseases, focusing on MS, SLE and RA.
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Affiliation(s)
- Christian W Keller
- Department of Neurology with Institute of Translational Neurology, University Hospital Münster, Münster, 48149, Germany
| | - Iannis E Adamopoulos
- Department of Rheumatology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Jan D Lünemann
- Department of Neurology with Institute of Translational Neurology, University Hospital Münster, Münster, 48149, Germany.
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Foo SS, Chen W, Jung KL, Azamor T, Choi UY, Zhang P, Comhair SA, Erzurum SC, Jehi L, Jung JU. Immunometabolic rewiring in long COVID patients with chronic headache. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.03.06.531302. [PMID: 36945569 PMCID: PMC10028820 DOI: 10.1101/2023.03.06.531302] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/11/2023]
Abstract
Almost 20% of patients with COVID-19 experience long-term effects, known as post-COVID condition or long COVID. Among many lingering neurologic symptoms, chronic headache is the most common. Despite this health concern, the etiology of long COVID headache is still not well characterized. Here, we present a longitudinal multi-omics analysis of blood leukocyte transcriptomics, plasma proteomics and metabolomics of long COVID patients with chronic headache. Long COVID patients experienced a state of hyper-inflammation prior to chronic headache onset and maintained persistent inflammatory activation throughout the progression of chronic headache. Metabolomic analysis also revealed augmented arginine and lipid metabolisms, skewing towards a nitric oxide-based pro-inflammation. Furthermore, metabolisms of neurotransmitters including serotonin, dopamine, glutamate, and GABA were markedly dysregulated during the progression of long COVID headache. Overall, these findings illustrate the immuno-metabolomics landscape of long COVID patients with chronic headache, which may provide insights to potential therapeutic interventions.
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Lajqi T, Köstlin-Gille N, Bauer R, Zarogiannis SG, Lajqi E, Ajeti V, Dietz S, Kranig SA, Rühle J, Demaj A, Hebel J, Bartosova M, Frommhold D, Hudalla H, Gille C. Training vs. Tolerance: The Yin/Yang of the Innate Immune System. Biomedicines 2023; 11:biomedicines11030766. [PMID: 36979747 PMCID: PMC10045728 DOI: 10.3390/biomedicines11030766] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 02/26/2023] [Accepted: 02/27/2023] [Indexed: 03/06/2023] Open
Abstract
For almost nearly a century, memory functions have been attributed only to acquired immune cells. Lately, this paradigm has been challenged by an increasing number of studies revealing that innate immune cells are capable of exhibiting memory-like features resulting in increased responsiveness to subsequent challenges, a process known as trained immunity (known also as innate memory). In contrast, the refractory state of endotoxin tolerance has been defined as an immunosuppressive state of myeloid cells portrayed by a significant reduction in the inflammatory capacity. Both training as well tolerance as adaptive features are reported to be accompanied by epigenetic and metabolic alterations occurring in cells. While training conveys proper protection against secondary infections, the induction of endotoxin tolerance promotes repairing mechanisms in the cells. Consequently, the inappropriate induction of these adaptive cues may trigger maladaptive effects, promoting an increased susceptibility to secondary infections—tolerance, or contribute to the progression of the inflammatory disorder—trained immunity. This review aims at the discussion of these opposing manners of innate immune and non-immune cells, describing the molecular, metabolic and epigenetic mechanisms involved and interpreting the clinical implications in various inflammatory pathologies.
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Affiliation(s)
- Trim Lajqi
- Department of Neonatology, Heidelberg University Children’s Hospital, D-69120 Heidelberg, Germany
- Correspondence: (T.L.); (C.G.)
| | - Natascha Köstlin-Gille
- Department of Neonatology, Heidelberg University Children’s Hospital, D-69120 Heidelberg, Germany
- Department of Neonatology, University of Tübingen, D-72076 Tübingen, Germany
| | - Reinhard Bauer
- Institute of Molecular Cell Biology, Jena University Hospital, D-07745 Jena, Germany
| | - Sotirios G. Zarogiannis
- Department of Physiology, School of Health Sciences, Faculty of Medicine, University of Thessaly, GR-41500 Larissa, Greece
| | - Esra Lajqi
- Department of Radiation Oncology, Heidelberg University Hospital, D-69120 Heidelberg, Germany
| | - Valdrina Ajeti
- Department of Pharmacy, Alma Mater Europaea—Campus College Rezonanca, XK-10000 Pristina, Kosovo
| | - Stefanie Dietz
- Department of Neonatology, Heidelberg University Children’s Hospital, D-69120 Heidelberg, Germany
- Department of Neonatology, University of Tübingen, D-72076 Tübingen, Germany
| | - Simon A. Kranig
- Department of Neonatology, Heidelberg University Children’s Hospital, D-69120 Heidelberg, Germany
| | - Jessica Rühle
- Department of Neonatology, University of Tübingen, D-72076 Tübingen, Germany
| | - Ardian Demaj
- Faculty of Medical Sciences, University of Tetovo, MK-1200 Tetova, North Macedonia
| | - Janine Hebel
- Department of Neonatology, University of Tübingen, D-72076 Tübingen, Germany
| | - Maria Bartosova
- Center for Pediatric and Adolescent Medicine Heidelberg, University of Heidelberg, D-69120 Heidelberg, Germany
| | - David Frommhold
- Klinik für Kinderheilkunde und Jugendmedizin, D-87700 Memmingen, Germany
| | - Hannes Hudalla
- Department of Neonatology, Heidelberg University Children’s Hospital, D-69120 Heidelberg, Germany
| | - Christian Gille
- Department of Neonatology, Heidelberg University Children’s Hospital, D-69120 Heidelberg, Germany
- Correspondence: (T.L.); (C.G.)
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Cheng L, Cai B, Lu D, Zeng H. The role of mitochondrial energy metabolism in neuroprotection and axonal regeneration after spinal cord injury. Mitochondrion 2023; 69:57-63. [PMID: 36740158 DOI: 10.1016/j.mito.2023.01.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 01/12/2023] [Accepted: 01/31/2023] [Indexed: 02/05/2023]
Abstract
Mitochondrial dysfunction occurs in the early stage of axonal degeneration after spinal cord injury and involves oxidative stress, energy deficiency, imbalance of mitochondrial dynamics, etc., which play a key role in axonal degeneration and regeneration under physiological and pathological conditions. Failure of axonal regeneration can lead to long-term structural and functional damage. Several recent studies have shown that improved mitochondrial energy metabolism provides conditions for axonal regeneration and central nervous system repair. Here, we describe the role of mitochondrial energy metabolism in neuroprotection and axonal regeneration after spinal cord injury and review recent advances in targeted mitochondrial therapy.
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Affiliation(s)
- Li Cheng
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
| | - Bin Cai
- Department of Rehabilitation Medicine, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Dezhi Lu
- School of Medicine, Shanghai University, Shanghai, China
| | - Hong Zeng
- Department of Rehabilitation Medicine, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
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Abstract
Tumours exhibit notable metabolic alterations compared with their corresponding normal tissue counterparts. These metabolic alterations can support anabolic growth, enable survival in hostile environments and regulate gene expression programmes that promote malignant progression. Whether these metabolic changes are selected for during malignant transformation or can themselves be drivers of tumour initiation is unclear. However, intriguingly, many of the major bottlenecks for tumour initiation - control of cell fate, survival and proliferation - are all amenable to metabolic regulation. In this article, we review evidence demonstrating a critical role for metabolic pathways in processes that support the earliest stages of tumour development. We discuss how cell-intrinsic factors, such as the cell of origin or transforming oncogene, and cell-extrinsic factors, such as local nutrient availability, promote or restrain tumour initiation. Deeper insight into how metabolic pathways control tumour initiation will improve our ability to design metabolic interventions to limit tumour incidence.
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Affiliation(s)
- Julia S Brunner
- Cell Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Lydia W S Finley
- Cell Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
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45
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Li W, Chen W. Weight cycling based on altered immune microenvironment as a result of metaflammation. Nutr Metab (Lond) 2023; 20:13. [PMID: 36814270 PMCID: PMC9945679 DOI: 10.1186/s12986-023-00731-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 02/07/2023] [Indexed: 02/24/2023] Open
Abstract
As a result of the obesity epidemic, more people are concerned about losing weight; however, weight regain is common, leading to repeated weight loss and weight cycling. The health benefits of early weight loss are nullified by weight regain after weight cycling, which has much more severe metabolic consequences. Weight cycling alters body composition, resulting in faster fat recovery and slower muscle reconstruction. This evident fat accumulation, muscle loss, and ectopic fat deposition destroy the intestinal barrier, increase the permeability of the small intestinal epithelium, and cause the lipotoxicity of lipid metabolites and toxins to leak into extraintestinal tissues and circulation. It causes oxidative stress and hypoxia in local tissues and immune cell infiltration in various tissues, all contributing to the adaptation to this metabolic change. Immune cells transmit inflammatory responses in adipose and skeletal muscle tissue by secreting cytokines and adipokines, which mediate immune cell pathways and cause metaflammation and inefficient metabolic degradation. In this review, we focus on the regulatory function of the immunological microenvironment in the final metabolic outcome, with a particular emphasis on the cellular and molecular processes of local and systemic metaflammation induced by weight cycling-induced changes in body composition. Metaflammation in adipose and muscle tissues that is difficult to relieve may cause weight cycling. As this chronic low-grade inflammation spreads throughout the body, metabolic complications associated with weight cycling are triggered. Inhibiting the onset and progression of metabolic inflammation and enhancing the immune microenvironment of adipose and muscle tissues may be the first step in addressing weight cycling.
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Affiliation(s)
- Wanyang Li
- grid.413106.10000 0000 9889 6335Department of Clinical Nutrition, Chinese Academy of Medical Sciences - Peking Union Medical College, Peking Union Medical College Hospital, No. 1 Shuaifuyuan, Dongcheng District, Beijing, 100730 China
| | - Wei Chen
- Department of Clinical Nutrition, Chinese Academy of Medical Sciences - Peking Union Medical College, Peking Union Medical College Hospital, No. 1 Shuaifuyuan, Dongcheng District, Beijing, 100730, China.
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46
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Guglielmetti M, Grosso G, Ferraris C, Bergamaschi R, Tavazzi E, La Malfa A, Wahidah HAQ, Tagliabue A. Ultra-processed foods consumption is associated with multiple sclerosis severity. Front Neurol 2023; 14:1086720. [PMID: 36761349 PMCID: PMC9902937 DOI: 10.3389/fneur.2023.1086720] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 01/04/2023] [Indexed: 01/25/2023] Open
Abstract
Background MS is a chronic inflammatory neurological and immune-mediated disease of multifactorial etiology. Ultra-processed foods (UPFs) have been generally considered unhealthy due to their poor nutritional value. Emerging evidence suggests that factors other than their nutritional content may play an additional role toward chronic inflammation. Aim To investigate the potential association of UPF consumption and MS severity in a group of MS Italian consecutive patients. Methods Demographic (age, sex, marital status, educational level), neurological (EDSS, MSSS), and nutritional (anthropometric measures, dietary habits) information were collected. Physical activity and smoking habits were also investigated. Food items were grouped according to the NOVA classification. Patients were classified in two groups based on MS severity ("mild" and "moderate to high"). Results Higher UPF consumption was associated with moderate-to-high MS severity compared to lower consumption in both the unadjusted model (OR = 2.28, 95% CI: 1.04-5.01) and after adjustment for potential background (OR = 2.46, 95% CI: 1.04-5.83) and clinical confounding factors (OR = 2.97, 95% CI: 1.13-7.77). Conclusions Although these results are only preliminary and hypothesis generating, it is important to explore how various aspects of the diet may relate to MS severity in order to identify the best strategy to support MS patients over the disease course.
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Affiliation(s)
- Monica Guglielmetti
- Department of Public Health, Experimental and Forensic Medicine, Human Nutrition and Eating Disorder Research Center, University of Pavia, Pavia, Italy,Laboratory of Food Education and Sport Nutrition, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, Pavia, Italy,*Correspondence: Monica Guglielmetti ✉
| | - Giuseppe Grosso
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy,Center for Human Nutrition and Mediterranean Foods (NUTREA), University of Catania, Catania, Italy
| | - Cinzia Ferraris
- Department of Public Health, Experimental and Forensic Medicine, Human Nutrition and Eating Disorder Research Center, University of Pavia, Pavia, Italy,Laboratory of Food Education and Sport Nutrition, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, Pavia, Italy
| | | | - Eleonora Tavazzi
- Neurological Institute-Foundation IRCCS Casimiro Mondino, Pavia, Italy
| | | | - H. Al-Qahtani Wahidah
- Department of Food Sciences and Nutrition, College of Food and Agriculture Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Anna Tagliabue
- Department of Public Health, Experimental and Forensic Medicine, Human Nutrition and Eating Disorder Research Center, University of Pavia, Pavia, Italy
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Mosevoll KA, Hansen BA, Gundersen IM, Reikvam H, Bruserud Ø, Bruserud Ø, Wendelbo Ø. Systemic Metabolomic Profiles in Adult Patients with Bacterial Sepsis: Characterization of Patient Heterogeneity at the Time of Diagnosis. Biomolecules 2023; 13:biom13020223. [PMID: 36830594 PMCID: PMC9953377 DOI: 10.3390/biom13020223] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 01/10/2023] [Accepted: 01/17/2023] [Indexed: 01/27/2023] Open
Abstract
Sepsis is a dysregulated host response to infection that causes potentially life-threatening organ dysfunction. We investigated the serum metabolomic profile at hospital admission for patients with bacterial sepsis. The study included 60 patients; 35 patients fulfilled the most recent 2016 Sepsis-3 criteria whereas the remaining 25 patients only fulfilled the previous Sepsis-2 criteria and could therefore be classified as having systemic inflammatory response syndrome (SIRS). A total of 1011 identified metabolites were detected in our serum samples. Ninety-seven metabolites differed significantly when comparing Sepsis-3 and Sepsis-2/SIRS patients; 40 of these metabolites constituted a heterogeneous group of amino acid metabolites/peptides. When comparing patients with and without bacteremia, we identified 51 metabolites that differed significantly, including 16 lipid metabolites and 11 amino acid metabolites. Furthermore, 42 metabolites showed a highly significant association with the maximal total Sequential Organ Failure Assessment (SOFA )score during the course of the disease (i.e., Pearson's correlation test, p-value < 0.005, and correlation factor > 0.6); these top-ranked metabolites included 23 amino acid metabolites and a subset of pregnenolone/progestin metabolites. Unsupervised hierarchical clustering analyses based on all 42 top-ranked SOFA correlated metabolites or the subset of 23 top-ranked amino acid metabolites showed that most Sepsis-3 patients differed from Sepsis-2/SIRS patients in their systemic metabolic profile at the time of hospital admission. However, a minority of Sepsis-3 patients showed similarities with the Sepsis-2/SIRS metabolic profile even though several of them showed a high total SOFA score. To conclude, Sepsis-3 patients are heterogeneous with regard to their metabolic profile at the time of hospitalization.
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Affiliation(s)
- Knut Anders Mosevoll
- Section for Infectious Diseases, Department of Medicine, Haukeland University Hospital, 5021 Bergen, Norway
- Section for Infectious Diseases, Department of Clinical Research, University of Bergen, 5021 Bergen, Norway
| | - Bent Are Hansen
- Department of Medicine, Central Hospital for Sogn and Fjordane, 6812 Førde, Norway
| | - Ingunn Margareetta Gundersen
- Section for Infectious Diseases, Department of Medicine, Haukeland University Hospital, 5021 Bergen, Norway
- Section for Infectious Diseases, Department of Clinical Research, University of Bergen, 5021 Bergen, Norway
| | - Håkon Reikvam
- Section for Hematology, Department of Medicine, Haukeland University Hospital, 5021 Bergen, Norway
- Leukemia Research Group, Department of Clinical Science, University of Bergen, 5021 Bergen, Norway
| | - Øyvind Bruserud
- Department for Anesthesiology and Intensive Care, Haukeland University Hospital, 5021 Bergen, Norway
| | - Øystein Bruserud
- Section for Hematology, Department of Medicine, Haukeland University Hospital, 5021 Bergen, Norway
- Leukemia Research Group, Department of Clinical Science, University of Bergen, 5021 Bergen, Norway
- Correspondence:
| | - Øystein Wendelbo
- Section for Infectious Diseases, Department of Medicine, Haukeland University Hospital, 5021 Bergen, Norway
- Faculty of Health, VID Specialized University, Ulriksdal 10, 5009 Bergen, Norway
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48
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de Jong TA, Semmelink JF, Denis SW, van de Sande MGH, Houtkooper RHL, van Baarsen LGM. Altered lipid metabolism in synovial fibroblasts of individuals at risk of developing rheumatoid arthritis. J Autoimmun 2023; 134:102974. [PMID: 36512907 DOI: 10.1016/j.jaut.2022.102974] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 12/02/2022] [Accepted: 12/02/2022] [Indexed: 12/14/2022]
Abstract
OBJECTIVE Fibroblast-like synoviocytes (FLS) can augment the inflammatory process observed in synovium of patients with rheumatoid arthritis (RA). A recent transcriptomic study in synovial biopsies revealed changes in metabolic pathways before disease onset in absence of synovial tissue inflammation. This raises the question whether alterations in cellular metabolism in tissue resident FLS underlie disease pathogenesis. MATERIALS AND METHODS To study this, we compared the metabolic profile of FLS isolated from synovial biopsies from individuals with arthralgia who were autoantibody positive but without any evidence of arthritis (RA-risk individuals, n = 6) with FLS from patients with RA (n = 6), osteoarthritis (OA, n = 6) and seronegative controls (n = 6). After synovial digestion, FLS were cultured in vitro and cellular metabolism was assessed using quantitative PCR, flow cytometry, XFe96 Seahorse Analyzer and tritium-labelled oleate oxidation assays. RESULTS Real-time metabolic profiling revealed that basal (p < 0.0001) and maximum mitochondrial respiration (p = 0.0024) were significantly lower in RA FLS compared with control FLS. In all donors, basal respiration was largely dependent on fatty acid oxidation while glucose was only highly used by FLS from RA patients. Moreover, we showed that RA-risk and RA FLS are less metabolically flexible. Strikingly, mitochondrial fatty acid β-oxidation was significantly impaired in RA-risk (p = 0.001) and RA FLS (p < 0.0001) compared with control FLS. CONCLUSION Overall, this study showed several metabolic alterations in FLS even in absence of synovial inflammation, suggesting that these alterations already start before clinical manifestation of disease and may drive disease pathogenesis.
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Affiliation(s)
- T A de Jong
- Department of Rheumatology & Clinical Immunology and Department of Experimental Immunology, Amsterdam UMC Location University of Amsterdam, Amsterdam, the Netherlands; Amsterdam Infection and Immunity Institute, Amsterdam, the Netherlands; Amsterdam Rheumatology & Immunology Center (ARC), Academic Medical Center, Amsterdam, the Netherlands
| | - J F Semmelink
- Department of Rheumatology & Clinical Immunology and Department of Experimental Immunology, Amsterdam UMC Location University of Amsterdam, Amsterdam, the Netherlands; Amsterdam Infection and Immunity Institute, Amsterdam, the Netherlands; Amsterdam Rheumatology & Immunology Center (ARC), Academic Medical Center, Amsterdam, the Netherlands
| | - S W Denis
- Laboratory Genetic Metabolic Diseases, Amsterdam UMC Location University of Amsterdam, Amsterdam, the Netherlands
| | - M G H van de Sande
- Department of Rheumatology & Clinical Immunology and Department of Experimental Immunology, Amsterdam UMC Location University of Amsterdam, Amsterdam, the Netherlands; Amsterdam Infection and Immunity Institute, Amsterdam, the Netherlands; Amsterdam Rheumatology & Immunology Center (ARC), Academic Medical Center, Amsterdam, the Netherlands
| | - R H L Houtkooper
- Laboratory Genetic Metabolic Diseases, Amsterdam UMC Location University of Amsterdam, Amsterdam, the Netherlands; Amsterdam Gastroenterology Endocrinology and Metabolism Institute, Amsterdam, the Netherlands; Amsterdam Cardiovascular Sciences Institute, Amsterdam, the Netherlands; Emma Center for Personalized Medicine, Amsterdam UMC, Amsterdam, the Netherlands
| | - L G M van Baarsen
- Department of Rheumatology & Clinical Immunology and Department of Experimental Immunology, Amsterdam UMC Location University of Amsterdam, Amsterdam, the Netherlands; Amsterdam Infection and Immunity Institute, Amsterdam, the Netherlands; Amsterdam Rheumatology & Immunology Center (ARC), Academic Medical Center, Amsterdam, the Netherlands.
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49
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de Jong TA, Semmelink JF, Denis SW, Bolt JW, Maas M, van de Sande MGH, Houtkooper RHL, van Baarsen LGM. Lower Metabolic Potential and Impaired Metabolic Flexibility in Human Lymph Node Stromal Cells from Patients with Rheumatoid Arthritis. Cells 2022; 12:cells12010001. [PMID: 36611795 PMCID: PMC9818527 DOI: 10.3390/cells12010001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 12/10/2022] [Accepted: 12/14/2022] [Indexed: 12/24/2022] Open
Abstract
Cellular metabolism is important for determining cell function and shaping immune responses. Studies have shown a crucial role for stromal cells in steering proper immune responses in the lymph node microenvironment. These lymph node stromal cells (LNSCs) tightly regulate immune tolerance. We hypothesize that malfunctioning LNSCs create a microenvironment in which normal immune responses are not properly controlled, possibly leading to the development of autoimmune diseases such as rheumatoid arthritis (RA). Therefore, we set out to determine their metabolic profile during health and systemic autoimmunity. We included autoantibody positive individuals at risk of developing RA (RA-risk individuals), RA patients and healthy volunteers. All study subjects underwent lymph node biopsy sampling. Mitochondrial function in cultured LNSCs was assessed by quantitative PCR, flow cytometry, Seahorse and oleate oxidation assays. Overall, mitochondrial respiration was lower in RA(-risk) LNSCs compared with healthy LNSCs, while metabolic potential was only lower in RA LNSCs. To maintain basal mitochondrial respiration, all LNSCs were mostly dependent on fatty acid oxidation. However, RA(-risk) LNSCs were also dependent on glutamine oxidation. Finally, we showed that RA LNSCs have impaired metabolic flexibility. Our results show that the metabolic landscape of LNSCs is not only altered during established disease, but partly already in individuals at risk of developing RA. Future studies are needed to investigate the impact of restoring metabolic capacity in LNSC-mediated immunomodulation and disease progression.
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Affiliation(s)
- Tineke A. de Jong
- Laboratory for Experimental Immunology and Department of Rheumatology & Clinical Immunology, Amsterdam UMC Location University of Amsterdam, 1105AZ Amsterdam, The Netherlands
- Amsterdam Institute for Infection and Immunity, Inflammatory Diseases, 1105AZ Amsterdam, The Netherlands
- Amsterdam Rheumatology & Immunology Center (ARC), Academic Medical Center, 1105AZ Amsterdam, The Netherlands
| | - Johanna F. Semmelink
- Laboratory for Experimental Immunology and Department of Rheumatology & Clinical Immunology, Amsterdam UMC Location University of Amsterdam, 1105AZ Amsterdam, The Netherlands
- Amsterdam Institute for Infection and Immunity, Inflammatory Diseases, 1105AZ Amsterdam, The Netherlands
- Amsterdam Rheumatology & Immunology Center (ARC), Academic Medical Center, 1105AZ Amsterdam, The Netherlands
| | - Simone W. Denis
- Laboratory Genetic Metabolic Diseases, Amsterdam UMC Location University of Amsterdam, 1105AZ Amsterdam, The Netherlands
| | - Janne W. Bolt
- Laboratory for Experimental Immunology and Department of Rheumatology & Clinical Immunology, Amsterdam UMC Location University of Amsterdam, 1105AZ Amsterdam, The Netherlands
- Amsterdam Institute for Infection and Immunity, Inflammatory Diseases, 1105AZ Amsterdam, The Netherlands
- Amsterdam Rheumatology & Immunology Center (ARC), Academic Medical Center, 1105AZ Amsterdam, The Netherlands
| | - Mario Maas
- Department of Radiology, Amsterdam UMC Location University of Amsterdam, 1105AZ Amsterdam, The Netherlands
- Amsterdam Movement Sciences, Tissue Function and Regeneration, 1105AZ Amsterdam, The Netherlands
| | - Marleen G. H. van de Sande
- Laboratory for Experimental Immunology and Department of Rheumatology & Clinical Immunology, Amsterdam UMC Location University of Amsterdam, 1105AZ Amsterdam, The Netherlands
- Amsterdam Institute for Infection and Immunity, Inflammatory Diseases, 1105AZ Amsterdam, The Netherlands
- Amsterdam Rheumatology & Immunology Center (ARC), Academic Medical Center, 1105AZ Amsterdam, The Netherlands
- Amsterdam Movement Sciences, Tissue Function and Regeneration, 1105AZ Amsterdam, The Netherlands
| | - Riekelt H. L. Houtkooper
- Laboratory Genetic Metabolic Diseases, Amsterdam UMC Location University of Amsterdam, 1105AZ Amsterdam, The Netherlands
- Amsterdam Gastroenterology Endocrinology and Metabolism Institute, 1105AZ Amsterdam, The Netherlands
- Amsterdam Cardiovascular Sciences Institute, 1105AZ Amsterdam, The Netherlands
- Emma Center for Personalized Medicine, Amsterdam UMC, 1105AZ Amsterdam, The Netherlands
| | - Lisa G. M. van Baarsen
- Laboratory for Experimental Immunology and Department of Rheumatology & Clinical Immunology, Amsterdam UMC Location University of Amsterdam, 1105AZ Amsterdam, The Netherlands
- Amsterdam Institute for Infection and Immunity, Inflammatory Diseases, 1105AZ Amsterdam, The Netherlands
- Amsterdam Rheumatology & Immunology Center (ARC), Academic Medical Center, 1105AZ Amsterdam, The Netherlands
- Amsterdam Movement Sciences, Tissue Function and Regeneration, 1105AZ Amsterdam, The Netherlands
- Correspondence:
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50
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Plant-cell machinery for making metabolites transferred to mammalian cells. Nature 2022:10.1038/d41586-022-03629-0. [PMID: 36476769 DOI: 10.1038/d41586-022-03629-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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