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Lutter F, Brenner W, Krajinski-Barth F, Safavi-Rizi V. Nitric oxide and cytokinin cross-talk and their role in plant hypoxia response. Plant Signal Behav 2024; 19:2329841. [PMID: 38521996 PMCID: PMC10962617 DOI: 10.1080/15592324.2024.2329841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Accepted: 03/07/2024] [Indexed: 03/25/2024]
Abstract
Nitric oxide (NO) and cytokinins (CKs) are known for their crucial contributions to plant development, growth, senescence, and stress response. Despite the importance of both signals in stress responses, their interaction remains largely unexplored. The interplay between NO and CKs emerges as particularly significant not only regarding plant growth and development but also in addressing plant stress response, particularly in the context of extreme weather events leading to yield loss. In this review, we summarize NO and CKs metabolism and signaling. Additionally, we emphasize the crosstalk between NO and CKs, underscoring its potential impact on stress response, with a focus on hypoxia tolerance. Finally, we address the most urgent questions that demand answers and offer recommendations for future research endeavors.
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Affiliation(s)
- Felix Lutter
- Institute of Biology, Department of General and Applied Botany, University of Leipzig, Leipzig, Germany
| | - Wolfram Brenner
- Institute of Biology, Department of General and Applied Botany, University of Leipzig, Leipzig, Germany
| | - Franziska Krajinski-Barth
- Institute of Biology, Department of General and Applied Botany, University of Leipzig, Leipzig, Germany
| | - Vajiheh Safavi-Rizi
- Institute of Biology, Department of General and Applied Botany, University of Leipzig, Leipzig, Germany
- Institute of Biology, Department of Plant physiology, University of Leipzig, Leipzig, Germany
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2
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Yan F, Teng Y, Li X, Zhong Y, Li C, Yan F, He X. Hypoxia promotes non-small cell lung cancer cell stemness, migration, and invasion via promoting glycolysis by lactylation of SOX9. Cancer Biol Ther 2024; 25:2304161. [PMID: 38226837 PMCID: PMC10793688 DOI: 10.1080/15384047.2024.2304161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 01/08/2024] [Indexed: 01/17/2024] Open
Abstract
BACKGROUND Lung cancer is the deadliest form of malignancy and the most common subtype is non-small cell lung cancer (NSCLC). Hypoxia is a typical feature of solid tumor microenvironment. In the current study, we clarified the effects of hypoxia on stemness and metastasis and the molecular mechanism. METHODS The biological functions were assessed using the sphere formation assay, Transwell assay, and XF96 extracellular flux analyzer. The protein levels were detected by western blot. The lactylation modification was assessed by western blot and immunoprecipitation. The role of SOX9 in vivo was explored using a xenografted tumor model. RESULTS We observed that hypoxia promoted sphere formation, migration, invasion, glucose consumption, lactate production, glycolysis, and global lactylation. Inhibition of glycolysis suppressed cell stemness, migration, invasion, and lactylation. Moreover, hypoxia increased the levels of SOX9 and lactylation of SOX9, whereas inhibition of glycolysis reversed the increase. Additionally, knockdown of SOX9 abrogated the promotion of cell stemness, migration, and invasion. In tumor-bearing mice, overexpression of SOX9 promoted tumor growth, and inhibition of glycolysis suppressed tumor growth. CONCLUSION Hypoxia induced the lactylation of SOX9 to promote stemness, migration, and invasion via promoting glycolysis. The findings suggested that targeting hypoxia may be an effective way for NSCLC treatment and reveal a new mechanism of hypoxia in NSCLC.
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Affiliation(s)
- Fei Yan
- Department of Medical Oncology, The Affiliated Cancer Hospital of Nanjing Medical University & Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research, Nanjing, Jiangsu, China
| | - Yue Teng
- Department of Medical Oncology, The Affiliated Cancer Hospital of Nanjing Medical University & Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research, Nanjing, Jiangsu, China
| | - Xiaoyou Li
- Department of Medical Oncology, The Affiliated Cancer Hospital of Nanjing Medical University & Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research, Nanjing, Jiangsu, China
| | - Yuejiao Zhong
- Department of Medical Oncology, The Affiliated Cancer Hospital of Nanjing Medical University & Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research, Nanjing, Jiangsu, China
| | - Chunyi Li
- Department of Medical Oncology, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Feng Yan
- Department of Clinical Laboratory, The Affiliated Cancer Hospital of Nanjing Medical University & Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research, Nanjing, Jiangsu, China
| | - Xia He
- Department of Radiotherapy, The Affiliated Cancer Hospital of Nanjing Medical University & Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research, Nanjing, Jiangsu, China
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Ramirez M, Bastien E, Chae H, Gianello P, Gilon P, Bouzin C. 3D evaluation of the extracellular matrix of hypoxic pancreatic islets using light sheet fluorescence microscopy. Islets 2024; 16:2298518. [PMID: 38267218 PMCID: PMC10810165 DOI: 10.1080/19382014.2023.2298518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 12/19/2023] [Indexed: 01/26/2024] Open
Abstract
Pancreatic islet transplantation is a promising treatment for type 1 diabetes, but the survival and function of transplanted islets are hindered by the loss of extracellular matrix (ECM) during islet isolation and by low oxygenation upon implantation. This study aimed to evaluate the impact of hypoxia on ECM using a cutting-edge imaging approach based on tissue clearing and 3D microscopy. Human and rat islets were cultured under normoxic (O2 21%) or hypoxic (O2 1%) conditions. Immunofluorescence staining targeting insulin, glucagon, CA9 (a hypoxia marker), ECM proteins (collagen 4, fibronectin, laminin), and E-cadherin (intercellular adhesion protein) was performed on fixed whole islets. The cleared islets were imaged using Light Sheet Fluorescence Microscopy (LSFM) and digitally analyzed. The volumetric analysis of target proteins did not show significant differences in abundance between the experimental groups. However, 3D projections revealed distinct morphological features that differentiated normoxic and hypoxic islets. Under normoxic conditions, ECM could be found throughout the islets. Hypoxic islets exhibited areas of scattered nuclei and central clusters of ECM proteins, indicating central necrosis. E-cadherin was absent in these areas. Our results, demonstrating a diminution of islets' functional mass in hypoxia, align with the functional decline observed in transplanted islets experiencing low oxygenation after grafting. This study provides a methodology combining tissue clearing, multiplex immunofluorescence, Light Sheet Fluorescence Microscopy, and digital image analysis to investigate pancreatic islet morphology. This 3D approach allowed us to highlight ECM organizational changes during hypoxia from a morphological perspective.
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Affiliation(s)
- Matias Ramirez
- Pole of Experimental Surgery and Transplantation, Institute of Experimental and Clinical Research, Université catholique de Louvain, Brussels, Belgium
| | - Estelle Bastien
- Pole of Pharmacology and Therapeutics, Institute of Experimental and Clinical Research, Université catholique de Louvain, Brussels, Belgium
| | - Heeyoung Chae
- Pole of Endocrinology, Diabetes and Nutrition, Institute of Experimental and Clinical Research, Université catholique de Louvain, Brussels, Belgium
| | - Pierre Gianello
- Laboratory of Experimental Surgery and Transplantation, Institute of Experimental and Clinical Research, Université catholique de Louvain, Brussels, Belgium
| | - Patrick Gilon
- Pole of Endocrinology, Diabetes and Nutrition, Institute of Experimental and Clinical Research, Université catholique de Louvain, Brussels, Belgium
| | - Caroline Bouzin
- Institute of Experimental and Clinical Research, Université catholique de Louvain, Brussels, Brussels, Belgium
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Safavi-Rizi V, Uhlig T, Lutter F, Safavi-Rizi H, Krajinski-Barth F, Sasso S. Reciprocal modulation of responses to nitrate starvation and hypoxia in roots and leaves of Arabidopsis thaliana. Plant Signal Behav 2024; 19:2300228. [PMID: 38165809 PMCID: PMC10763642 DOI: 10.1080/15592324.2023.2300228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 12/23/2023] [Indexed: 01/04/2024]
Abstract
The flooding of agricultural land leads to hypoxia and nitrate leaching. While understanding the plant's response to these conditions is essential for crop improvement, the effect of extended nitrate limitation on subsequent hypoxia has not been studied in an organ-specific manner. We cultivated Arabidopsis thaliana without nitrate for 1 week before inducing hypoxia by bubbling the hydroponic solution with nitrogen gas for 16 h. In the roots, the transcripts of two transcription factor genes (HRA1, HRE2) and three genes involved in fermentation (SUS4, PDC1, ADH1) were ~10- to 100-fold upregulated by simultaneous hypoxia and nitrate starvation compared to the control condition (replete nitrate and oxygen). In contrast, this hypoxic upregulation was ~5 to 10 times stronger when nitrate was available. The phytoglobin genes PGB1 and PGB2, involved in nitric oxide (NO) scavenging, were massively downregulated by nitrate starvation (~1000-fold and 105-fold, respectively), but only under ambient oxygen levels; this was reflected in a 2.5-fold increase in NO concentration. In the leaves, HRA1, SUS4, and RAP2.3 were upregulated ~20-fold by hypoxia under nitrate starvation, whereas this upregulation was virtually absent in the presence of nitrate. Our results highlight that the plant's responses to nitrate starvation and hypoxia can influence each other.
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Affiliation(s)
- Vajiheh Safavi-Rizi
- Institute of Biology, Department of Plant Physiology, Leipzig University, Leipzig, Germany
- Institute of Biology, Department of General and Applied Botany, Leipzig University, Leipzig, Germany
| | - Tina Uhlig
- Institute of Biology, Department of Plant Physiology, Leipzig University, Leipzig, Germany
| | - Felix Lutter
- Institute of Biology, Department of General and Applied Botany, Leipzig University, Leipzig, Germany
| | - Hamid Safavi-Rizi
- Department of Information Technology Engineering, Institute of Information Technology and Computer Engineering, University of Payame Noor, Isfahan, Iran
| | - Franziska Krajinski-Barth
- Institute of Biology, Department of General and Applied Botany, Leipzig University, Leipzig, Germany
| | - Severin Sasso
- Institute of Biology, Department of Plant Physiology, Leipzig University, Leipzig, Germany
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Behrendt T, Quisilima JI, Bielitzki R, Behrens M, Glazachev OS, Brigadski T, Leßmann V, Schega L. Brain-Derived neurotrophic factor and inflammatory biomarkers are unaffected by acute and chronic intermittent hypoxic-hyperoxic exposure in geriatric patients: a randomized controlled trial. Ann Med 2024; 56:2304650. [PMID: 38253008 PMCID: PMC10810628 DOI: 10.1080/07853890.2024.2304650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 11/24/2023] [Indexed: 01/24/2024] Open
Abstract
BACKGROUND Animal and human studies have shown that exposure to hypoxia can increase brain-derived neurotrophic factor (BDNF) protein transcription and reduce systematic inflammatory cytokine response. Therefore, the aim of this study was to investigate the acute and chronic effects of intermittent hypoxic-hyperoxic exposure (IHHE) prior to aerobic exercise on BDNF, interleukin-6 (IL-6), and C-reactive protein (CRP) blood levels in geriatric patients. PATIENTS AND METHODS Twenty-five geriatric patients (83.1 ± 5.0 yrs, 71.1 ± 10.0 kg, 1.8 ± 0.9 m) participated in a placebo-controlled, single-blinded trial and were randomly assigned to either an intervention (IG) or control group (CG) performing an aerobic cycling training (17 sessions, 20 min·session-1, 3 sessions·week-1). Prior to aerobic cycling exercise, the IG was additionally exposed to IHHE for 30 min, whereas the CG received continuous normoxic air. Blood samples were taken immediately before (pre-exercise) and 10 min (post-exercise) after the first session as well as 48 h (post-training) after the last session to determine serum (BDNFS) and plasma BDNF (BDNFP), IL-6, and CRP levels. Intervention effects were analyzed using a 2 x 2 analysis of covariance with repeated measures. Results were interpreted based on effect sizes with a medium effect considered as meaningful (ηp2 ≥ 0.06, d ≥ 0.5). RESULTS CRP was moderately higher (d = 0.51) in the CG compared to the IG at baseline. IHHE had no acute effect on BDNFS (ηp2 = 0.01), BDNFP (ηp2 < 0.01), BDNF serum/plasma-ratio (ηp2 < 0.01), IL-6 (ηp2 < 0.01), or CRP (ηp2 = 0.04). After the 6-week intervention, an interaction was found for BDNF serum/plasma-ratio (ηp2 = 0.06) but not for BDNFS (ηp2 = 0.04), BDNFP (ηp2 < 0.01), IL-6 (ηp2 < 0.01), or CRP (ηp2 < 0.01). BDNF serum/plasma-ratio increased from pre-exercise to post-training (d = 0.67) in the CG compared to the IG (d = 0.51). A main effect of time was found for BDNFP (ηp2 = 0.09) but not for BDNFS (ηp2 = 0.02). Within-group post-hoc analyses revealed a training-related reduction in BDNFP in the IG and CG by 46.1% (d = 0.73) and 24.7% (d = 0.57), respectively. CONCLUSION The addition of 30 min IHHE prior to 20 min aerobic cycling seems not to be effective to increase BDNFS and BDNFP or to reduce IL-6 and CRP levels in geriatric patients after a 6-week intervention.The study was retrospectively registered at drks.de (DRKS-ID: DRKS00025130).
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Affiliation(s)
- Tom Behrendt
- Department of Sport Science, Chair for Health and Physical Activity, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Jessica Ibanez Quisilima
- Department of Sport Science, Chair for Health and Physical Activity, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Robert Bielitzki
- Department of Sport Science, Chair for Health and Physical Activity, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Martin Behrens
- University of Applied Sciences for Sport and Management Potsdam, Potsdam, Germany
| | - Oleg S. Glazachev
- Department of Human Physiology, Institute of Clinical Medicine, I.M. Sechenov First Moscow State Medical University, Moscow, Russia
| | - Tanja Brigadski
- Department of Informatics and Microsystem Technology, University of Applied Sciences Kaiserslautern, Zweibrücken, Germany
| | - Volkmar Leßmann
- Institute of Physiology, Otto-von-Guericke University Magdeburg, Medical Faculty, Magdeburg, Germany
- Center for Behavioral Brain Sciences, Magdeburg, Germany
| | - Lutz Schega
- Department of Sport Science, Chair for Health and Physical Activity, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
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Wu H, Fan Y, Bao Y, Zhou Q, Xu L, Xu Y. Construction of a ferroptosis and hypoxia-related gene signature in cervical cancer to assess tumour immune microenvironment and predict prognosis. J OBSTET GYNAECOL 2024; 44:2321323. [PMID: 38425023 DOI: 10.1080/01443615.2024.2321323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 02/15/2024] [Indexed: 03/02/2024]
Abstract
BACKGROUND This study aimed to investigate the potential role of ferroptosis/hypoxia-related genes in cervical cancer to improve early management and treatment of cervical cancer. METHODS All data were downloaded from public databases. Ferroptosis/hypoxia-related genes associated with cervical cancer prognosis were selected to construct a risk score model. The relationship between risk score and clinical features, immune microenvironment and prognosis were analysed. RESULTS Risk score model was constructed based on eight signature genes. Drug prediction analysis showed that bevacizumab and cisplatin were related to vascular endothelial growth factor A. Risk score, as an independent prognostic factor of cervical cancer, had a good survival prediction effect. The two groups differed significantly in degree of immune cell infiltration, gene expression, tumour mutation burden and somatic variation. CONCLUSIONS We developed a novel prognostic gene signature combining ferroptosis/hypoxia-related genes, which provides new ideas for individual treatment of cervical cancer.
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Affiliation(s)
- Haiyan Wu
- Department of Gynecology, Chengdu Second People's Hospital, Chengdu, China
| | - Yayun Fan
- Department of Gynecology, Chengdu Second People's Hospital, Chengdu, China
| | - Yuanyuan Bao
- Department of Gynecology, Chengdu Second People's Hospital, Chengdu, China
| | - Qing Zhou
- Department of Gynecology, Chengdu Second People's Hospital, Chengdu, China
| | - Lei Xu
- Department of Gynecology, The First Affiliated Hospital of Chengdu Medical College, Chengdu City, PR China
| | - Yao Xu
- Department of Gynecology, The First Affiliated Hospital of Chengdu Medical College, Chengdu City, PR China
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Tzeng WS, Teng WL, Huang PH, Yen FL, Shiue YL. Anti-cancer activity and cellular uptake of 7,3',4'- and 7,8,4'-trihydroxyisoflavone in HepG2 cells under hypoxic conditions. J Enzyme Inhib Med Chem 2024; 39:2288806. [PMID: 38153119 PMCID: PMC10763887 DOI: 10.1080/14756366.2023.2288806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Accepted: 11/24/2023] [Indexed: 12/29/2023] Open
Abstract
Transarterial chemoembolisation (TACE) is used for unresectable hepatocellular carcinoma (HCC) treatment, but TACE-induced hypoxia leads to poor prognosis. The anti-cancer effects of soybean isoflavones daidzein derivatives 7,3',4'-trihydroxyisoflavone (734THIF) and 7,8,4'-trihydroxyisoflavone (784THIF) were evaluated under hypoxic microenvironments. Molecular docking of these isomers with cyclooxygenase-2 (COX-2) and vascular endothelial growth factor receptor 2 (VEGFR2) was assessed. About 40 μM of 734THIF and 784THIF have the best effect on inhibiting the proliferation of HepG2 cells under hypoxic conditions. At a concentration of 40 μM, 784THIF significantly inhibits COX-2 expression in pre-hypoxia conditions compared to 734THIF, with an inhibition rate of 67.73%. Additionally, 40 μM 784THIF downregulates the expression of hypoxic, inflammatory, and metastatic-related proteins, regulates oxidative stress, and inhibits the expression of anti-apoptotic proteins. The uptake by HepG2 confirmed higher 784THIF level and slower degradation characteristics under post- or pre-hypoxic conditions. In conclusion, our results showed that 784THIF had better anti-cancer effects and cellular uptake than 734THIF.
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Affiliation(s)
- Wen-Sheng Tzeng
- Department of Radiology, Pingtung Christian Hospital, Pingtung, Taiwan
- Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung, Taiwan
| | - Wei-Lin Teng
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Pao-Hsien Huang
- Department of Fragrance and Cosmetic Science, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Feng-Lin Yen
- Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung, Taiwan
- Department of Fragrance and Cosmetic Science, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan
- Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Yow-Ling Shiue
- Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung, Taiwan
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Ramachandra AB, Jiang B, Jennings IR, Manning EP, Humphrey JD. Remodeling of Murine Branch Pulmonary Arteries Under Chronic Hypoxia and Short-Term Normoxic Recovery. J Biomech Eng 2024; 146:084501. [PMID: 38421341 DOI: 10.1115/1.4064967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 02/05/2024] [Indexed: 03/02/2024]
Abstract
Chronic hypoxia plays a central role in diverse pulmonary pathologies, but its effects on longitudinal changes in the biomechanical behavior of proximal pulmonary arteries remain poorly understood. Similarly, effects of normoxic recovery have not been well studied. Here, we report hypoxia-induced changes in composition, vasoactivity, and passive biaxial mechanics in the main branch pulmonary artery of male C57BL/6J mice exposed to 10% FiO2 for 1, 2, or 3 weeks. We observed significant changes in extracellular matrix, and consequently wall mechanics, as early as 1 week of hypoxia. While circumferential stress and stiffness returned toward normal values by 2-3 weeks of hypoxia, area fractions of cytoplasm and thin collagen fibers did not return toward normal until after 1 week of normoxic recovery. By contrast, elastic energy storage and overall distensibility remained reduced after 3 weeks of hypoxia as well as following 1 week of normoxic recovery. While smooth muscle and endothelial cell responses were attenuated under hypoxia, smooth muscle but not endothelial cell responses recovered following 1 week of subsequent normoxia. Collectively, these data suggest that homeostatic processes were unable to preserve or restore overall function, at least over a brief period of normoxic recovery. Longitudinal changes are critical in understanding large pulmonary artery remodeling under hypoxia, and its reversal, and will inform predictive models of vascular adaptation.
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Affiliation(s)
| | - Bo Jiang
- Department of Surgery, Yale School of Medicine, New Haven, CT 06520
| | - Isabella R Jennings
- Department of Biomedical Engineering, Yale University, New Haven, CT 06520
- Yale University
| | - Edward P Manning
- Section of Pulmonary, Critical Care, and Sleep Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, CT 06520;West Haven Connecticut VA and Pulmonary and Critical Care Medicine, VA Connecticut Healthcare System, West Haven, CT 06516
| | - Jay D Humphrey
- Department of Biomedical Engineering and Vascular Biology and Therapeutics Program, Yale University, New Haven, CT 06520
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Liu S, Liu Y, Qiu X, Suhail Y, Kshitiz. Tissue-of-origin for cancers determines HIF-1 activation induced phenotypic heterogeneity. Mol Carcinog 2024; 63:834-848. [PMID: 38372346 PMCID: PMC11013563 DOI: 10.1002/mc.23691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Revised: 01/02/2024] [Accepted: 01/16/2024] [Indexed: 02/20/2024]
Abstract
Hypoxia-inducible factor-1 (HIF-1) is the master regulator of cellular response to hypoxia, and is activated in many cancers contributing to many steps in the metastatic cascade by acting as a key transcription co-regulator for a large number of downstream genes. Presence of hypoxia within a tumor is spatially nonuniform, and can also by dynamic. Further, although HIF-1 is primarily stabilized and activated by lack of molecular O2, its stability is also affected by other factors present in the tumor microenvironment. HIF-1 also crosstalks with other transcription factors in co-regulating gene expression. Consequently, it is nontrivial to predict the gene expression patterns in cells in response to hypoxia, or HIF-1 activation. Additionally, cancers originating from tissue origins with different basal level of partial oxygen tension may activate HIF-1 at different threshold of hypoxia. We analyzed large published single cell RNAseq data for colorectal, lung, and pancreatic cancers to investigate the phenotypic outcome of HIF-1 activation in cancer cells. We found that cancers from tissues with different partial O2 tension levels exhibit HIF-1 activation at different stages of metastasis, and phenotypically respond differently to HIF-1 activation, likely by contextual co-option of different transcription factors. We experimentally confirmed these predictions by using cell lines representative of colorectal, lung, and pancreatic cancers, finding that while hypoxia enhances growth of colorectal cancer, it induces increased invasion of lung, and pancreatic cancers. Our analysis suggest that HIF-1 activation may act as a rheostat regulating downstream gene expression towards phenotypic outcomes differently in various cancers.
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Affiliation(s)
- Shaofei Liu
- Department of Biomedical Engineering, University of Connecticut Health, Farmington, Connecticut, USA
| | - Yamin Liu
- Department of Biomedical Engineering, University of Connecticut Health, Farmington, Connecticut, USA
| | - Xihua Qiu
- Department of Biomedical Engineering, University of Connecticut Health, Farmington, Connecticut, USA
| | - Yasir Suhail
- Department of Biomedical Engineering, University of Connecticut Health, Farmington, Connecticut, USA
| | - Kshitiz
- Department of Biomedical Engineering, University of Connecticut Health, Farmington, Connecticut, USA
- Center for Cell Analysis and Modeling, University of Connecticut Health, Farmington, Connecticut, USA
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10
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Bilgin Topçuoğlu Ö, Çetintaş Afşar G, Alibaş H, Uluç K. Impact of obstructive sleep apnea on neuromuscular transmission- a descriptive study. Cranio 2024; 42:292-297. [PMID: 34228607 DOI: 10.1080/08869634.2021.1952016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Objective: Obstructive sleep apnea (OSA) is a sleep disorder accompanied by intermittent hypoxia. Neuromuscular transmission (NT) is known to be disturbed under chronic hypoxia. In this descriptive study, it has been aimed to test NT under intermittent hypoxia in OSA. Methods: Thirty-nine newly diagnosed OSA patients without any comorbidities or conditions that alter NT were included in the study. Jitter analysis was performed using a concentric needle electrode. Results: The mean jitter value of 39 OSA patients was 25.9 ± 3.7 μs. When compared to the mean reference jitter values, patients in the present study had significantly higher jitter (p < 0.001). Seven (17.9%) patients met the electrophysiological criteria for NT failure. Conclusion: The authors propose that intermittent hypoxia can be the trigger for NT failure in OSA. The interaction between increased oxidative stress and disturbed mitochondrial functions may also contribute.
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Affiliation(s)
| | - Gülgün Çetintaş Afşar
- Department of Chest Diseases, Sureyyapasa Chest Diseases and Thorax Surgery Training and Research Hospital, Istanbul, Turkey
| | - Hande Alibaş
- Department of Neurology, Marmara University, Medical School, Istanbul, Turkey
| | - Kayıhan Uluç
- Department of Neurology, Marmara University, Medical School, Istanbul, Turkey
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11
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Vu C, Shen J, Gonzalez Zacarias C, Xu B, Baas K, Choi S, Nederveen A, Wood JC. Contrast-free dynamic susceptibility contrast using sinusoidal and bolus oxygenation challenges. NMR Biomed 2024; 37:e5111. [PMID: 38297919 PMCID: PMC10987281 DOI: 10.1002/nbm.5111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 12/10/2023] [Accepted: 01/08/2024] [Indexed: 02/02/2024]
Abstract
Deoxygenation-based dynamic susceptibility contrast (dDSC) MRI uses respiratory challenges as a source of endogenous contrast as an alternative to gadolinium injection. These gas challenges induce T2*-weighted MRI signal losses, after which tracer kinetics modeling was applied to calculate cerebral perfusion. This work compares three gas challenges, desaturation (transient hypoxia), resaturation (transient normoxia), and SineO2 (sinusoidal modulation of end-tidal oxygen pressures) in a cohort of 10 healthy volunteers (age 37 ± 11 years; 60% female). Perfusion estimates consisted of cerebral blood flow (CBF), cerebral blood volume (CBV), and mean transit time (MTT). Calculations were computed using a traditional tracer kinetics model in the time domain for desaturation and resaturation and in the frequency domain for SineO2. High correlations and limits of agreement were observed among the three deoxygenation-based paradigms for CBV, although MTT and CBF estimates varied with the hypoxic stimulus. Cross-modality correlation with gadolinium DSC was lower, particularly for MTT, but on a par with agreement between the other perfusion references. Overall, this work demonstrated the feasibility and reliability of oxygen respiratory challenges to measure brain perfusion. Additional work is needed to assess the utility of dDSC in the diagnostic evaluation of various pathologies such as ischemic strokes, brain tumors, and neurodegenerative diseases.
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Affiliation(s)
- Chau Vu
- Department of Biomedical Engineering, University of Southern California, Los Angeles, California, USA
| | - Jian Shen
- Department of Biomedical Engineering, University of Southern California, Los Angeles, California, USA
| | - Clio Gonzalez Zacarias
- Neuroscience Graduate Program, University of Southern California, Los Angeles, California, USA
| | - Botian Xu
- Department of Biomedical Engineering, University of Southern California, Los Angeles, California, USA
| | - Koen Baas
- Department of Radiology and Nuclear Medicine, Amsterdam UMC, Location AMC, Amsterdam, Netherlands
| | - Soyoung Choi
- Neuroscience Graduate Program, University of Southern California, Los Angeles, California, USA
| | - Aart Nederveen
- Department of Radiology and Nuclear Medicine, Amsterdam UMC, Location AMC, Amsterdam, Netherlands
| | - John C. Wood
- Department of Biomedical Engineering, University of Southern California, Los Angeles, California, USA
- Division of Cardiology, Children’s Hospital Los Angeles, University of Southern California, Los Angeles, California, USA
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Chu X, Kheirollahi V, Lingampally A, Chelladurai P, Valasarajan C, Vazquez-Armendariz AI, Hadzic S, Khadim A, Pak O, Rivetti S, Wilhelm J, Bartkuhn M, Crnkovic S, Moiseenko A, Heiner M, Kraut S, Sotoodeh L, Koepke J, Valente G, Ruppert C, Braun T, Samakovlis C, Alexopoulos I, Looso M, Chao CM, Herold S, Seeger W, Kwapiszewska G, Huang X, Zhang JS, Pullamsetti SS, Weissmann N, Li X, El Agha E, Bellusci S. GLI1+ Cells Contribute to Vascular Remodeling in Pulmonary Hypertension. Circ Res 2024. [PMID: 38639105 DOI: 10.1161/circresaha.123.323736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 04/01/2024] [Indexed: 04/20/2024]
Abstract
BACKGROUND The precise origin of newly formed ACTA2+ (alpha smooth muscle actin-positive) cells appearing in nonmuscularized vessels in the context of pulmonary hypertension is still debatable although it is believed that they predominantly derive from preexisting vascular smooth muscle cells (VSMCs). METHODS Gli1Cre-ERT2; tdTomatoflox mice were used to lineage trace GLI1+ (glioma-associated oncogene homolog 1-positive) cells in the context of pulmonary hypertension using 2 independent models of vascular remodeling and reverse remodeling: hypoxia and cigarette smoke exposure. Hemodynamic measurements, right ventricular hypertrophy assessment, flow cytometry, and histological analysis of thick lung sections followed by state-of-the-art 3-dimensional reconstruction and quantification using Imaris software were used to investigate the contribution of GLI1+ cells to neomuscularization of the pulmonary vasculature. RESULTS The data show that GLI1+ cells are abundant around distal, nonmuscularized vessels during steady state, and this lineage contributes to around 50% of newly formed ACTA2+ cells around these normally nonmuscularized vessels. During reverse remodeling, cells derived from the GLI1+ lineage are largely cleared in parallel to the reversal of muscularization. Partial ablation of GLI1+ cells greatly prevented vascular remodeling in response to hypoxia and attenuated the increase in right ventricular systolic pressure and right heart hypertrophy. Single-cell RNA sequencing on sorted lineage-labeled GLI1+ cells revealed an Acta2high fraction of cells with pathways in cancer and MAPK signaling as potential players in reprogramming these cells during vascular remodeling. Analysis of human lung-derived material suggests that GLI1 signaling is overactivated in both group 1 and group 3 pulmonary hypertension and can promote proliferation and myogenic differentiation. CONCLUSIONS Our data highlight GLI1+ cells as an alternative cellular source of VSMCs in pulmonary hypertension and suggest that these cells and the associated signaling pathways represent an important therapeutic target for further studies.
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Affiliation(s)
- Xuran Chu
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), Universities of Giessen and Marburg Lung Center, German Center for Lung Research (DZL), Justus Liebig University Giessen, Germany. (X.C., S.B.)
- School of Pharmaceutical Sciences, Universities of Giessen and Marburg Lung Center, German Center for Lung Research (DZL), Justus Liebig University Giessen, Germany. (X.C., X.L.)
- Wenzhou Medical University, China. Cardio-Pulmonary Institute, Universities of Giessen and Marburg Lung Center, German Center for Lung Research (DZL), Justus Liebig University Giessen, Germany. (X.C., V.K., A.L., P.C., C.V., A.I.V.-A., S. Hadzic, A.K., O.P., S.R., J.W., M.B., A.M., M.H., S.K., L.S., J.K., C.R., C.S., I.A., C.-M.C., S. Herold, W.S., G.K., S.S.P., N.W., E.E.A., S.B.)
| | - Vahid Kheirollahi
- Wenzhou Medical University, China. Cardio-Pulmonary Institute, Universities of Giessen and Marburg Lung Center, German Center for Lung Research (DZL), Justus Liebig University Giessen, Germany. (X.C., V.K., A.L., P.C., C.V., A.I.V.-A., S. Hadzic, A.K., O.P., S.R., J.W., M.B., A.M., M.H., S.K., L.S., J.K., C.R., C.S., I.A., C.-M.C., S. Herold, W.S., G.K., S.S.P., N.W., E.E.A., S.B.)
| | - Arun Lingampally
- Wenzhou Medical University, China. Cardio-Pulmonary Institute, Universities of Giessen and Marburg Lung Center, German Center for Lung Research (DZL), Justus Liebig University Giessen, Germany. (X.C., V.K., A.L., P.C., C.V., A.I.V.-A., S. Hadzic, A.K., O.P., S.R., J.W., M.B., A.M., M.H., S.K., L.S., J.K., C.R., C.S., I.A., C.-M.C., S. Herold, W.S., G.K., S.S.P., N.W., E.E.A., S.B.)
| | - Prakash Chelladurai
- Wenzhou Medical University, China. Cardio-Pulmonary Institute, Universities of Giessen and Marburg Lung Center, German Center for Lung Research (DZL), Justus Liebig University Giessen, Germany. (X.C., V.K., A.L., P.C., C.V., A.I.V.-A., S. Hadzic, A.K., O.P., S.R., J.W., M.B., A.M., M.H., S.K., L.S., J.K., C.R., C.S., I.A., C.-M.C., S. Herold, W.S., G.K., S.S.P., N.W., E.E.A., S.B.)
- Institute for Lung Health, Giessen, Germany (P.C., C.V., A.I.V.-A., A.K., J.W., M.B., J.K., C.S., I.A., S. Herold, W.S., G.K., S.S.P., E.E.A., S.B.)
| | - Chanil Valasarajan
- Wenzhou Medical University, China. Cardio-Pulmonary Institute, Universities of Giessen and Marburg Lung Center, German Center for Lung Research (DZL), Justus Liebig University Giessen, Germany. (X.C., V.K., A.L., P.C., C.V., A.I.V.-A., S. Hadzic, A.K., O.P., S.R., J.W., M.B., A.M., M.H., S.K., L.S., J.K., C.R., C.S., I.A., C.-M.C., S. Herold, W.S., G.K., S.S.P., N.W., E.E.A., S.B.)
- Institute for Lung Health, Giessen, Germany (P.C., C.V., A.I.V.-A., A.K., J.W., M.B., J.K., C.S., I.A., S. Herold, W.S., G.K., S.S.P., E.E.A., S.B.)
| | - Ana Ivonne Vazquez-Armendariz
- Wenzhou Medical University, China. Cardio-Pulmonary Institute, Universities of Giessen and Marburg Lung Center, German Center for Lung Research (DZL), Justus Liebig University Giessen, Germany. (X.C., V.K., A.L., P.C., C.V., A.I.V.-A., S. Hadzic, A.K., O.P., S.R., J.W., M.B., A.M., M.H., S.K., L.S., J.K., C.R., C.S., I.A., C.-M.C., S. Herold, W.S., G.K., S.S.P., N.W., E.E.A., S.B.)
- Institute for Lung Health, Giessen, Germany (P.C., C.V., A.I.V.-A., A.K., J.W., M.B., J.K., C.S., I.A., S. Herold, W.S., G.K., S.S.P., E.E.A., S.B.)
| | - Stefan Hadzic
- Wenzhou Medical University, China. Cardio-Pulmonary Institute, Universities of Giessen and Marburg Lung Center, German Center for Lung Research (DZL), Justus Liebig University Giessen, Germany. (X.C., V.K., A.L., P.C., C.V., A.I.V.-A., S. Hadzic, A.K., O.P., S.R., J.W., M.B., A.M., M.H., S.K., L.S., J.K., C.R., C.S., I.A., C.-M.C., S. Herold, W.S., G.K., S.S.P., N.W., E.E.A., S.B.)
| | - Ali Khadim
- Wenzhou Medical University, China. Cardio-Pulmonary Institute, Universities of Giessen and Marburg Lung Center, German Center for Lung Research (DZL), Justus Liebig University Giessen, Germany. (X.C., V.K., A.L., P.C., C.V., A.I.V.-A., S. Hadzic, A.K., O.P., S.R., J.W., M.B., A.M., M.H., S.K., L.S., J.K., C.R., C.S., I.A., C.-M.C., S. Herold, W.S., G.K., S.S.P., N.W., E.E.A., S.B.)
- Institute for Lung Health, Giessen, Germany (P.C., C.V., A.I.V.-A., A.K., J.W., M.B., J.K., C.S., I.A., S. Herold, W.S., G.K., S.S.P., E.E.A., S.B.)
| | - Oleg Pak
- Wenzhou Medical University, China. Cardio-Pulmonary Institute, Universities of Giessen and Marburg Lung Center, German Center for Lung Research (DZL), Justus Liebig University Giessen, Germany. (X.C., V.K., A.L., P.C., C.V., A.I.V.-A., S. Hadzic, A.K., O.P., S.R., J.W., M.B., A.M., M.H., S.K., L.S., J.K., C.R., C.S., I.A., C.-M.C., S. Herold, W.S., G.K., S.S.P., N.W., E.E.A., S.B.)
| | - Stefano Rivetti
- Wenzhou Medical University, China. Cardio-Pulmonary Institute, Universities of Giessen and Marburg Lung Center, German Center for Lung Research (DZL), Justus Liebig University Giessen, Germany. (X.C., V.K., A.L., P.C., C.V., A.I.V.-A., S. Hadzic, A.K., O.P., S.R., J.W., M.B., A.M., M.H., S.K., L.S., J.K., C.R., C.S., I.A., C.-M.C., S. Herold, W.S., G.K., S.S.P., N.W., E.E.A., S.B.)
| | - Jochen Wilhelm
- Wenzhou Medical University, China. Cardio-Pulmonary Institute, Universities of Giessen and Marburg Lung Center, German Center for Lung Research (DZL), Justus Liebig University Giessen, Germany. (X.C., V.K., A.L., P.C., C.V., A.I.V.-A., S. Hadzic, A.K., O.P., S.R., J.W., M.B., A.M., M.H., S.K., L.S., J.K., C.R., C.S., I.A., C.-M.C., S. Herold, W.S., G.K., S.S.P., N.W., E.E.A., S.B.)
- Institute for Lung Health, Giessen, Germany (P.C., C.V., A.I.V.-A., A.K., J.W., M.B., J.K., C.S., I.A., S. Herold, W.S., G.K., S.S.P., E.E.A., S.B.)
| | - Marek Bartkuhn
- Wenzhou Medical University, China. Cardio-Pulmonary Institute, Universities of Giessen and Marburg Lung Center, German Center for Lung Research (DZL), Justus Liebig University Giessen, Germany. (X.C., V.K., A.L., P.C., C.V., A.I.V.-A., S. Hadzic, A.K., O.P., S.R., J.W., M.B., A.M., M.H., S.K., L.S., J.K., C.R., C.S., I.A., C.-M.C., S. Herold, W.S., G.K., S.S.P., N.W., E.E.A., S.B.)
- Institute for Lung Health, Giessen, Germany (P.C., C.V., A.I.V.-A., A.K., J.W., M.B., J.K., C.S., I.A., S. Herold, W.S., G.K., S.S.P., E.E.A., S.B.)
| | - Slaven Crnkovic
- Ludwig Boltzmann Institute for Lung Vascular Research, Medical University Graz, Austria (S.C., G.K.)
| | - Alena Moiseenko
- Wenzhou Medical University, China. Cardio-Pulmonary Institute, Universities of Giessen and Marburg Lung Center, German Center for Lung Research (DZL), Justus Liebig University Giessen, Germany. (X.C., V.K., A.L., P.C., C.V., A.I.V.-A., S. Hadzic, A.K., O.P., S.R., J.W., M.B., A.M., M.H., S.K., L.S., J.K., C.R., C.S., I.A., C.-M.C., S. Herold, W.S., G.K., S.S.P., N.W., E.E.A., S.B.)
| | - Monika Heiner
- Wenzhou Medical University, China. Cardio-Pulmonary Institute, Universities of Giessen and Marburg Lung Center, German Center for Lung Research (DZL), Justus Liebig University Giessen, Germany. (X.C., V.K., A.L., P.C., C.V., A.I.V.-A., S. Hadzic, A.K., O.P., S.R., J.W., M.B., A.M., M.H., S.K., L.S., J.K., C.R., C.S., I.A., C.-M.C., S. Herold, W.S., G.K., S.S.P., N.W., E.E.A., S.B.)
| | - Simone Kraut
- Wenzhou Medical University, China. Cardio-Pulmonary Institute, Universities of Giessen and Marburg Lung Center, German Center for Lung Research (DZL), Justus Liebig University Giessen, Germany. (X.C., V.K., A.L., P.C., C.V., A.I.V.-A., S. Hadzic, A.K., O.P., S.R., J.W., M.B., A.M., M.H., S.K., L.S., J.K., C.R., C.S., I.A., C.-M.C., S. Herold, W.S., G.K., S.S.P., N.W., E.E.A., S.B.)
| | - Leila Sotoodeh
- Wenzhou Medical University, China. Cardio-Pulmonary Institute, Universities of Giessen and Marburg Lung Center, German Center for Lung Research (DZL), Justus Liebig University Giessen, Germany. (X.C., V.K., A.L., P.C., C.V., A.I.V.-A., S. Hadzic, A.K., O.P., S.R., J.W., M.B., A.M., M.H., S.K., L.S., J.K., C.R., C.S., I.A., C.-M.C., S. Herold, W.S., G.K., S.S.P., N.W., E.E.A., S.B.)
| | - Janine Koepke
- Wenzhou Medical University, China. Cardio-Pulmonary Institute, Universities of Giessen and Marburg Lung Center, German Center for Lung Research (DZL), Justus Liebig University Giessen, Germany. (X.C., V.K., A.L., P.C., C.V., A.I.V.-A., S. Hadzic, A.K., O.P., S.R., J.W., M.B., A.M., M.H., S.K., L.S., J.K., C.R., C.S., I.A., C.-M.C., S. Herold, W.S., G.K., S.S.P., N.W., E.E.A., S.B.)
- Institute for Lung Health, Giessen, Germany (P.C., C.V., A.I.V.-A., A.K., J.W., M.B., J.K., C.S., I.A., S. Herold, W.S., G.K., S.S.P., E.E.A., S.B.)
| | - Guilherme Valente
- Max Planck Institute for Lung and Heart, Bad Nauheim, Germany (G.V., T.B., M.L., W.S.)
| | - Clemens Ruppert
- Wenzhou Medical University, China. Cardio-Pulmonary Institute, Universities of Giessen and Marburg Lung Center, German Center for Lung Research (DZL), Justus Liebig University Giessen, Germany. (X.C., V.K., A.L., P.C., C.V., A.I.V.-A., S. Hadzic, A.K., O.P., S.R., J.W., M.B., A.M., M.H., S.K., L.S., J.K., C.R., C.S., I.A., C.-M.C., S. Herold, W.S., G.K., S.S.P., N.W., E.E.A., S.B.)
| | - Thomas Braun
- Max Planck Institute for Lung and Heart, Bad Nauheim, Germany (G.V., T.B., M.L., W.S.)
| | - Christos Samakovlis
- Wenzhou Medical University, China. Cardio-Pulmonary Institute, Universities of Giessen and Marburg Lung Center, German Center for Lung Research (DZL), Justus Liebig University Giessen, Germany. (X.C., V.K., A.L., P.C., C.V., A.I.V.-A., S. Hadzic, A.K., O.P., S.R., J.W., M.B., A.M., M.H., S.K., L.S., J.K., C.R., C.S., I.A., C.-M.C., S. Herold, W.S., G.K., S.S.P., N.W., E.E.A., S.B.)
- Institute for Lung Health, Giessen, Germany (P.C., C.V., A.I.V.-A., A.K., J.W., M.B., J.K., C.S., I.A., S. Herold, W.S., G.K., S.S.P., E.E.A., S.B.)
| | - Ioannis Alexopoulos
- Wenzhou Medical University, China. Cardio-Pulmonary Institute, Universities of Giessen and Marburg Lung Center, German Center for Lung Research (DZL), Justus Liebig University Giessen, Germany. (X.C., V.K., A.L., P.C., C.V., A.I.V.-A., S. Hadzic, A.K., O.P., S.R., J.W., M.B., A.M., M.H., S.K., L.S., J.K., C.R., C.S., I.A., C.-M.C., S. Herold, W.S., G.K., S.S.P., N.W., E.E.A., S.B.)
- Institute for Lung Health, Giessen, Germany (P.C., C.V., A.I.V.-A., A.K., J.W., M.B., J.K., C.S., I.A., S. Herold, W.S., G.K., S.S.P., E.E.A., S.B.)
| | - Mario Looso
- Max Planck Institute for Lung and Heart, Bad Nauheim, Germany (G.V., T.B., M.L., W.S.)
| | - Cho-Ming Chao
- Wenzhou Medical University, China. Cardio-Pulmonary Institute, Universities of Giessen and Marburg Lung Center, German Center for Lung Research (DZL), Justus Liebig University Giessen, Germany. (X.C., V.K., A.L., P.C., C.V., A.I.V.-A., S. Hadzic, A.K., O.P., S.R., J.W., M.B., A.M., M.H., S.K., L.S., J.K., C.R., C.S., I.A., C.-M.C., S. Herold, W.S., G.K., S.S.P., N.W., E.E.A., S.B.)
- Department of Pediatrics, HELIOS University Medical Center, Witten/Herdecke University, Wuppertal, Germany (C.-M.C.)
| | - Susanne Herold
- Wenzhou Medical University, China. Cardio-Pulmonary Institute, Universities of Giessen and Marburg Lung Center, German Center for Lung Research (DZL), Justus Liebig University Giessen, Germany. (X.C., V.K., A.L., P.C., C.V., A.I.V.-A., S. Hadzic, A.K., O.P., S.R., J.W., M.B., A.M., M.H., S.K., L.S., J.K., C.R., C.S., I.A., C.-M.C., S. Herold, W.S., G.K., S.S.P., N.W., E.E.A., S.B.)
- Department of Medicine V, Internal Medicine, Infectious Diseases and Infection Control, Universities of Giessen and Marburg Lung Center, German Center for Lung Research (DZL), Justus Liebig University Giessen, Germany. (S. Herold, E.E.A.)
- Institute for Lung Health, Giessen, Germany (P.C., C.V., A.I.V.-A., A.K., J.W., M.B., J.K., C.S., I.A., S. Herold, W.S., G.K., S.S.P., E.E.A., S.B.)
| | - Werner Seeger
- Wenzhou Medical University, China. Cardio-Pulmonary Institute, Universities of Giessen and Marburg Lung Center, German Center for Lung Research (DZL), Justus Liebig University Giessen, Germany. (X.C., V.K., A.L., P.C., C.V., A.I.V.-A., S. Hadzic, A.K., O.P., S.R., J.W., M.B., A.M., M.H., S.K., L.S., J.K., C.R., C.S., I.A., C.-M.C., S. Herold, W.S., G.K., S.S.P., N.W., E.E.A., S.B.)
- Institute for Lung Health, Giessen, Germany (P.C., C.V., A.I.V.-A., A.K., J.W., M.B., J.K., C.S., I.A., S. Herold, W.S., G.K., S.S.P., E.E.A., S.B.)
- Max Planck Institute for Lung and Heart, Bad Nauheim, Germany (G.V., T.B., M.L., W.S.)
| | - Grazyna Kwapiszewska
- Wenzhou Medical University, China. Cardio-Pulmonary Institute, Universities of Giessen and Marburg Lung Center, German Center for Lung Research (DZL), Justus Liebig University Giessen, Germany. (X.C., V.K., A.L., P.C., C.V., A.I.V.-A., S. Hadzic, A.K., O.P., S.R., J.W., M.B., A.M., M.H., S.K., L.S., J.K., C.R., C.S., I.A., C.-M.C., S. Herold, W.S., G.K., S.S.P., N.W., E.E.A., S.B.)
- Institute for Lung Health, Giessen, Germany (P.C., C.V., A.I.V.-A., A.K., J.W., M.B., J.K., C.S., I.A., S. Herold, W.S., G.K., S.S.P., E.E.A., S.B.)
- Ludwig Boltzmann Institute for Lung Vascular Research, Medical University Graz, Austria (S.C., G.K.)
| | - Xiaoying Huang
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, China (X.H., J.-S.Z.)
| | - Jin-San Zhang
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, China (X.H., J.-S.Z.)
| | - Soni Savai Pullamsetti
- Wenzhou Medical University, China. Cardio-Pulmonary Institute, Universities of Giessen and Marburg Lung Center, German Center for Lung Research (DZL), Justus Liebig University Giessen, Germany. (X.C., V.K., A.L., P.C., C.V., A.I.V.-A., S. Hadzic, A.K., O.P., S.R., J.W., M.B., A.M., M.H., S.K., L.S., J.K., C.R., C.S., I.A., C.-M.C., S. Herold, W.S., G.K., S.S.P., N.W., E.E.A., S.B.)
- Institute for Lung Health, Giessen, Germany (P.C., C.V., A.I.V.-A., A.K., J.W., M.B., J.K., C.S., I.A., S. Herold, W.S., G.K., S.S.P., E.E.A., S.B.)
| | - Norbert Weissmann
- Wenzhou Medical University, China. Cardio-Pulmonary Institute, Universities of Giessen and Marburg Lung Center, German Center for Lung Research (DZL), Justus Liebig University Giessen, Germany. (X.C., V.K., A.L., P.C., C.V., A.I.V.-A., S. Hadzic, A.K., O.P., S.R., J.W., M.B., A.M., M.H., S.K., L.S., J.K., C.R., C.S., I.A., C.-M.C., S. Herold, W.S., G.K., S.S.P., N.W., E.E.A., S.B.)
| | - Xiaokun Li
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), Universities of Giessen and Marburg Lung Center, German Center for Lung Research (DZL), Justus Liebig University Giessen, Germany. (X.C., S.B.)
- School of Pharmaceutical Sciences, Universities of Giessen and Marburg Lung Center, German Center for Lung Research (DZL), Justus Liebig University Giessen, Germany. (X.C., X.L.)
| | - Elie El Agha
- Wenzhou Medical University, China. Cardio-Pulmonary Institute, Universities of Giessen and Marburg Lung Center, German Center for Lung Research (DZL), Justus Liebig University Giessen, Germany. (X.C., V.K., A.L., P.C., C.V., A.I.V.-A., S. Hadzic, A.K., O.P., S.R., J.W., M.B., A.M., M.H., S.K., L.S., J.K., C.R., C.S., I.A., C.-M.C., S. Herold, W.S., G.K., S.S.P., N.W., E.E.A., S.B.)
- Department of Medicine V, Internal Medicine, Infectious Diseases and Infection Control, Universities of Giessen and Marburg Lung Center, German Center for Lung Research (DZL), Justus Liebig University Giessen, Germany. (S. Herold, E.E.A.)
- Institute for Lung Health, Giessen, Germany (P.C., C.V., A.I.V.-A., A.K., J.W., M.B., J.K., C.S., I.A., S. Herold, W.S., G.K., S.S.P., E.E.A., S.B.)
| | - Saverio Bellusci
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), Universities of Giessen and Marburg Lung Center, German Center for Lung Research (DZL), Justus Liebig University Giessen, Germany. (X.C., S.B.)
- Wenzhou Medical University, China. Cardio-Pulmonary Institute, Universities of Giessen and Marburg Lung Center, German Center for Lung Research (DZL), Justus Liebig University Giessen, Germany. (X.C., V.K., A.L., P.C., C.V., A.I.V.-A., S. Hadzic, A.K., O.P., S.R., J.W., M.B., A.M., M.H., S.K., L.S., J.K., C.R., C.S., I.A., C.-M.C., S. Herold, W.S., G.K., S.S.P., N.W., E.E.A., S.B.)
- Institute for Lung Health, Giessen, Germany (P.C., C.V., A.I.V.-A., A.K., J.W., M.B., J.K., C.S., I.A., S. Herold, W.S., G.K., S.S.P., E.E.A., S.B.)
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Jagathesan K, Roy S. Recent Development of Transition Metal Complexes as Chemotherapeutic Hypoxia Activated Prodrug (HAP). ChemMedChem 2024:e202400127. [PMID: 38634306 DOI: 10.1002/cmdc.202400127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Revised: 04/15/2024] [Accepted: 04/15/2024] [Indexed: 04/19/2024]
Abstract
Hypoxia is a state characterized by low concentration of Oxygen. Hypoxic state is often found in the central region of solid tumors. Hypoxia is associated with abnormal neovascularization resulted in poor blood flow in tissues and increased proliferation of tumor cells, imbalance between O2 supply and O2 consumption in tumor cells, high concentration of proton and strong reducibility. And, these abnormalities enhance the survival potency of the hypoxic tumours and increase the resistance towards chemotherapy and radiotherapy. One of approach for treating hypoxic region of tumour is to use reducing environment of hypoxic tumours for reducing a molecule (hypoxia activated prodrug, HAP) and as a result the active drug will be released in hypoxic region in a controlled manner from the prodrug and kill the hypoxic tumour. Co(III) and Pt(IV) complexes with monodentate active drug molecule in the axial position can be reduced to Co(II) and Pt(II) moieties and as a result, the axial ligands (active drug) could come out from the metal center and could show its anticancer activity. In this review we have highlighted the research articles where transition metal-based complexes are used as chemotherapeutic hypoxia activated prodrug molecules which are reported in last 5 years.
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Affiliation(s)
| | - Sovan Roy
- Vellore Institute of Technology: VIT University, Chemistry, Katpadi, 632014, Vellore, INDIA
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14
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Welch JF, Vose AK, Cavka K, Brunetti G, DeMark LA, Snyder H, Wauneka CN, Tonuzi G, Nair J, Mitchell GS, Fox EJ. Cardiorespiratory Responses to Acute Intermittent Hypoxia in Humans With Chronic Spinal Cord Injury. J Neurotrauma 2024. [PMID: 38468543 DOI: 10.1089/neu.2023.0353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/13/2024] Open
Abstract
Brief exposure to repeated episodes of low inspired oxygen, or acute intermittent hypoxia (AIH), is a promising therapeutic modality to improve motor function after chronic, incomplete spinal cord injury (SCI). Although therapeutic AIH is under extensive investigation in persons with SCI, limited data are available concerning cardiorespiratory responses during and after AIH exposure despite implications for AIH safety and tolerability. Thus, we recorded immediate (during treatment) and enduring (up to 30 min post-treatment) cardiorespiratory responses to AIH in 19 participants with chronic SCI (>1 year post-injury; injury levels C1 to T6; American Spinal Injury Association Impairment Scale A to D; mean age = 33.8 ± 14.1 years; 18 males). Participants completed a single AIH (15, 60-sec episodes, inspired O2 ≈ 10%; 90-sec intervals breathing room air) and Sham (inspired O2 ≈ 21%) treatment, in random order. During hypoxic episodes: (1) arterial oxyhemoglobin saturation decreased to 82.1 ± 2.9% (p < 0.001); (2) minute ventilation increased 3.83 ± 2.29 L/min (p = 0.008); and (3) heart rate increased 4.77 ± 6.82 bpm (p = 0.010). Considerable variability in cardiorespiratory responses was found among subjects; some individuals exhibited large hypoxic ventilatory responses (≥0.20 L/min/%, n = 11), whereas others responded minimally (<0.20 L/min/%, n = 8). Apneas occurred frequently during AIH and/or Sham protocols in multiple participants. All participants completed AIH treatment without difficulty. No significant changes in ventilation, heart rate, or arterial blood pressure were found 30 min post-AIH p > 0.05). In conclusion, therapeutic AIH is well tolerated, elicits variable chemoreflex activation, and does not cause persistent changes in cardiorespiratory control/function 30 min post-treatment in persons with chronic SCI.
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Affiliation(s)
- Joseph F Welch
- Breathing Research and Therapeutics Center and Department of Physical Therapy, University of Florida, Gainesville, Florida, USA
- McKnight Brain Institute, University of Florida, Gainesville, Florida, USA
- School of Sport, Exercise and Rehabilitation Sciences, College of Life and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham, United Kingdom
| | - Alicia K Vose
- Breathing Research and Therapeutics Center and Department of Physical Therapy, University of Florida, Gainesville, Florida, USA
- McKnight Brain Institute, University of Florida, Gainesville, Florida, USA
- Brooks Rehabilitation, Jacksonville, Florida, USA
- Department of Neurology, College of Medicine-Jacksonville, University of Florida, Jacksonville, Florida, USA
| | - Kate Cavka
- Brooks Rehabilitation, Jacksonville, Florida, USA
| | | | | | | | | | | | - Jayakrishnan Nair
- Breathing Research and Therapeutics Center and Department of Physical Therapy, University of Florida, Gainesville, Florida, USA
- McKnight Brain Institute, University of Florida, Gainesville, Florida, USA
- Department of Physical Therapy, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Gordon S Mitchell
- Breathing Research and Therapeutics Center and Department of Physical Therapy, University of Florida, Gainesville, Florida, USA
- McKnight Brain Institute, University of Florida, Gainesville, Florida, USA
| | - Emily J Fox
- Breathing Research and Therapeutics Center and Department of Physical Therapy, University of Florida, Gainesville, Florida, USA
- Brooks Rehabilitation, Jacksonville, Florida, USA
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15
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Hou F, Bian X, Jing D, Gao H, Zhu F. Hypoxia, hypoxia-inducible factors and inflammatory bowel diseases. Gastroenterol Rep (Oxf) 2024; 12:goae030. [PMID: 38638288 PMCID: PMC11023819 DOI: 10.1093/gastro/goae030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 02/07/2024] [Accepted: 03/13/2024] [Indexed: 04/20/2024] Open
Abstract
Adequate oxygen supply is essential for maintaining the body's normal physiological function. In chronic inflammatory conditions such as inflammatory bowel disease (IBD), insufficient oxygen reaching the intestine triggers the regulatory system in response to environmental changes. However, the pathogenesis of IBD is still under investigation. Recent research has highlighted the significant role of hypoxia in IBD, particularly the involvement of hypoxia-inducible factors (HIF) and their regulatory mechanisms, making them promising therapeutic targets for IBD. This review will delve into the role of hypoxia, HIF, and the associated hypoxia-inflammatory microenvironment in the context of IBD. Potential interventions for addressing these challenging gastrointestinal inflammatory diseases will also be discussed within this framework.
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Affiliation(s)
- Fei Hou
- Department of Critical Liver Diseases, Liver Research Center, Beijing Friendship Hospital, Capital Medical University, Beijing, P. R. China
| | - Xixi Bian
- Department of Gastroenterology, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, Shandong, P. R. China
- Clinical Medical College of Jining Medical University, Department of Clinical Medicine, Jining Medical University, Jining, Shandong, P. R. China
| | - Dehuai Jing
- Department of Gastroenterology, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, Shandong, P. R. China
| | - Huikuan Gao
- Department of Cardiology, Beijing Friendship Hospital, Capital Medical University, Beijing, P. R. China
| | - Fengqin Zhu
- Department of Gastroenterology, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, Shandong, P. R. China
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16
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do Amaral Silva L, Santin JM. Neural processing without O 2 and glucose delivery: from the pond to the clinic. Physiology (Bethesda) 2024. [PMID: 38624246 DOI: 10.1152/physiol.00030.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Accepted: 04/12/2024] [Indexed: 04/17/2024] Open
Abstract
Neuronal activity requires a large amount of ATP, leading to a rapid collapse of brain function when aerobic respiration fails. Here, we summarize how rhythmic motor circuits in the brainstem of adult frogs, which normally have high metabolic demands, transform to produce proper output during severe hypoxia associated with emergence from hibernation. We suggest that general principles underlying plasticity in brain bioenergetics may be uncovered by studying non-mammalian models that face extreme environments, yielding new insights to combat neurological disorders involving dysfunctional energy metabolism.
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Affiliation(s)
| | - Joseph M Santin
- Biological Sciences, University of Missouri, Columbia, MO, United States
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17
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Chen Y, Deng Y, Li Y, Qin Y, Zhou Z, Yang H, Sun Y. Oxygen-Independent Radiodynamic Therapy: Radiation-Boosted Chemodynamics for Reprogramming the Tumor Immune Environment and Enhancing Antitumor Immune Response. ACS Appl Mater Interfaces 2024. [PMID: 38626342 DOI: 10.1021/acsami.4c00793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/18/2024]
Abstract
Radiodynamic therapy (RDT) has emerged as a promising modality for cancer treatment, offering notable advantages such as deep tissue penetration and radiocatalytic generation of oxygen free radicals. However, the oxygen-dependent nature of RDT imposes limitations on its efficacy in hypoxic conditions, particularly in modulating and eliminating radioresistant immune suppression cells. A novel approach involving the creation of a "super" tetrahedron polyoxometalate (POM) cluster, Fe12-POM, has been developed for radiation boosted chemodynamic catalysis to enable oxygen-independent RDT in hypoxic conditions. This nanoscale cluster comprises four P2W15 units functioning as energy antennas, while the Fe3 core serves as an electron receptor and catalytic center. Under X-ray radiation, a metal-to-metal charge transfer phenomenon occurs between P2W15 and the Fe3 core, resulting in the valence transition of Fe3+ to Fe2+ and a remarkable 139-fold increase in hydroxyl radical generation compared to Fe12-POM alone. The rapid generation of hydroxyl radicals, in combination with PD-1 therapy, induces a reprogramming of the immune environment within tumors. This reprogramming is characterized by upregulation of CD80/86, downregulation of CD163 and FAP, as well as the release of interferon-γ and tumor necrosis factor-α. Consequently, the occurrence of abscopal effects is facilitated, leading to significant regression of both local and distant tumors in mice. The development of oxygen-independent RDT represents a promising approach to address cancer recurrence and improve treatment outcomes.
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Affiliation(s)
- Yang Chen
- Department of Research and Development, Shanghai Proton and Heavy Ion Center, Fudan University Cancer Hospital, Shanghai 201321, China
- College of Chemistry and Materials Science, Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Frontiers Science Center of Biomimetic Catalysis, Shanghai Normal University, Shanghai 200234, China
- Shanghai Key Laboratory of Radiation Oncology (20dz2261000), Shanghai 201321, China
- Shanghai Engineering Research Center of Proton and Heavy Ion Radiation Therapy, Shanghai 201321, China
| | - Yong Deng
- Department of Research and Development, Shanghai Proton and Heavy Ion Center, Fudan University Cancer Hospital, Shanghai 201321, China
- Shanghai Key Laboratory of Radiation Oncology (20dz2261000), Shanghai 201321, China
- Shanghai Engineering Research Center of Proton and Heavy Ion Radiation Therapy, Shanghai 201321, China
| | - Yiran Li
- Department of Research and Development, Shanghai Proton and Heavy Ion Center, Fudan University Cancer Hospital, Shanghai 201321, China
- College of Chemistry and Materials Science, Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Frontiers Science Center of Biomimetic Catalysis, Shanghai Normal University, Shanghai 200234, China
- Shanghai Key Laboratory of Radiation Oncology (20dz2261000), Shanghai 201321, China
- Shanghai Engineering Research Center of Proton and Heavy Ion Radiation Therapy, Shanghai 201321, China
| | - Yulin Qin
- Department of Research and Development, Shanghai Proton and Heavy Ion Center, Fudan University Cancer Hospital, Shanghai 201321, China
- College of Chemistry and Materials Science, Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Frontiers Science Center of Biomimetic Catalysis, Shanghai Normal University, Shanghai 200234, China
- Shanghai Key Laboratory of Radiation Oncology (20dz2261000), Shanghai 201321, China
- Shanghai Engineering Research Center of Proton and Heavy Ion Radiation Therapy, Shanghai 201321, China
| | - Zhiguo Zhou
- College of Chemistry and Materials Science, Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Frontiers Science Center of Biomimetic Catalysis, Shanghai Normal University, Shanghai 200234, China
| | - Hong Yang
- College of Chemistry and Materials Science, Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Frontiers Science Center of Biomimetic Catalysis, Shanghai Normal University, Shanghai 200234, China
| | - Yun Sun
- Department of Research and Development, Shanghai Proton and Heavy Ion Center, Fudan University Cancer Hospital, Shanghai 201321, China
- Shanghai Key Laboratory of Radiation Oncology (20dz2261000), Shanghai 201321, China
- Shanghai Engineering Research Center of Proton and Heavy Ion Radiation Therapy, Shanghai 201321, China
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18
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Pucciariello C, Perata P. Plant Quiescence Strategy and Seed Dormancy under Hypoxia. J Exp Bot 2024:erae163. [PMID: 38622943 DOI: 10.1093/jxb/erae163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Indexed: 04/17/2024]
Abstract
Plant quiescence and seed dormancy can be triggered by reduced oxygen availability. Under water, oxygen depletion caused by flooding can culminate in a quiescent state, which is a plant strategy for energy preservation and survival. In adult plants, a quiescent state can be activated by sugar starvation, culminating in metabolic depression. In seeds, secondary dormancy can be activated by reduced oxygen availability, which creates an unfavourable state for germination. The physical dormancy of some seeds and buds includes barriers to external conditions, which indirectly results in hypoxia. The molecular processes that support seed dormancy and plant survival through quiescence under hypoxia include the N-degron pathway, which enables the modulation of ethylene responsive factors of group VII and downstream targets. This oxygen- and nitric oxide-dependent mechanism interacts with phytohormone-related pathways to control growth.
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Affiliation(s)
- Chiara Pucciariello
- Centre of Plant Sciences, Scuola Superiore Sant'Anna, Pisa, Italy
- nanoPlant Centre @NEST, Centre of Plant Sciences, Scuola Superiore Sant'Anna, Pisa, Italy
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19
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Xiao D, Liu L, Xie F, Dong J, Wang Y, Xu X, Zhong W, Deng H, Zhou X, Li S. Azobenzene-Based Linker Strategy for Selective Activation of Antibody-Drug Conjugates. Angew Chem Int Ed Engl 2024; 63:e202310318. [PMID: 38369681 DOI: 10.1002/anie.202310318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 02/16/2024] [Accepted: 02/16/2024] [Indexed: 02/20/2024]
Abstract
Existing antibody-drug conjugate (ADC) linkers, whether cleavable or non-cleavable, are designed to release highly toxic payloads or payload derivatives upon internalisation of the ADCs into cells. However, clinical studies have shown that only <1 % of the dosed ADCs accumulate in tumour cells. The remaining >99 % of ADCs are nonspecifically distributed in healthy tissue cells, thus inevitably leading to off-target toxicity. Herein, we describe an intelligent tumour-specific linker strategy to address these limitations. A tumour-specific linker is constructed by introducing a hypoxia-activated azobenzene group as a toxicity controller. We show that this azobenzene-based linker is non-cleavable in healthy tissues (O2 >10 %), and the corresponding payload derivative, cysteine-appended azobenzene-linker-monomethyl auristatin E (MMAE), can serve as a safe prodrug to mask the toxicity of MMAE (switched off). Upon exposure to the hypoxic tumour microenvironment (O2<1 %), this linker is cleaved to release MMAE and fully restores the high cytotoxicity of the ADC (switched on). Notably, the azobenzene linker-containing ADC exhibits satisfactory antitumour efficacy in vivo and a larger therapeutic window compared with ADCs containing traditional cleavable or non-cleavable linkers. Thus, our azobenzene-based linker sheds new light on the development of next-generation ADC linkers.
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Affiliation(s)
- Dian Xiao
- National Engineering Research Center for the Emergency Drug, Beijing Institute of Pharmacology and Toxicology, Beijing, 100850, China
| | - Lianqi Liu
- National Engineering Research Center for the Emergency Drug, Beijing Institute of Pharmacology and Toxicology, Beijing, 100850, China
| | - Fei Xie
- National Engineering Research Center for the Emergency Drug, Beijing Institute of Pharmacology and Toxicology, Beijing, 100850, China
| | - Jingwen Dong
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
| | - Yanming Wang
- National Engineering Research Center for the Emergency Drug, Beijing Institute of Pharmacology and Toxicology, Beijing, 100850, China
| | - Xin Xu
- National Engineering Research Center for the Emergency Drug, Beijing Institute of Pharmacology and Toxicology, Beijing, 100850, China
| | - Wu Zhong
- National Engineering Research Center for the Emergency Drug, Beijing Institute of Pharmacology and Toxicology, Beijing, 100850, China
| | - Hongbin Deng
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
| | - Xinbo Zhou
- National Engineering Research Center for the Emergency Drug, Beijing Institute of Pharmacology and Toxicology, Beijing, 100850, China
| | - Song Li
- National Engineering Research Center for the Emergency Drug, Beijing Institute of Pharmacology and Toxicology, Beijing, 100850, China
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20
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Gola C, Maniscalco L, Iussich S, Morello E, Olimpo M, Martignani E, Accornero P, Giacobino D, Mazzone E, Modesto P, Varello K, Aresu L, De Maria R. Hypoxia-associated markers in the prognosis of oral canine melanoma. Vet Pathol 2024:3009858241244853. [PMID: 38613423 DOI: 10.1177/03009858241244853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/15/2024]
Abstract
Canine oral malignant melanoma (COMM) is the most common neoplasm in the oral cavity characterized by local invasiveness and high metastatic potential. Hypoxia represents a crucial feature of the solid tumor microenvironment promoting cancer progression and drug resistance. Hypoxia-inducible factor-1α (HIF-1α) and its downstream effectors, vascular endothelial growth factor A (VEGF-A), glucose transporter isoform 1 (GLUT1), C-X-C chemokine receptor type 4 (CXCR4), and carbonic anhydrase IX (CAIX), are the main regulators of the adaptive response to low oxygen availability. The prognostic value of these markers was evaluated in 36 COMMs using immunohistochemistry. In addition, the effects of cobalt chloride-mediated hypoxia were evaluated in 1 primary COMM cell line. HIF-1α expression was observed in the nucleus, and this localization correlated with the presence or enhanced expression of HIF-1α-regulated genes at the protein level. Multivariate analysis revealed that in dogs given chondroitin sulfate proteoglycan-4 (CSPG4) DNA vaccine, COMMs expressing HIF-1α, VEGF-A, and CXCR4 were associated with shorter disease-free intervals (DFI) compared with tumors that were negative for these markers (P = .03), suggesting hypoxia can influence immunotherapy response. Western blotting showed that, under chemically induced hypoxia, COMM cells accumulate HIF-1α and smaller amounts of CAIX. HIF-1α induction and stabilization triggered by hypoxia was corroborated by immunofluorescence, showing its nuclear translocation. These findings reinforce the role of an hypoxic microenvironment in tumor progression and patient outcome in COMM, as previously established in several human and canine cancers. In addition, hypoxic markers may represent promising prognostic markers, highlighting opportunities for their use in therapeutic strategies for COMMs.
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Affiliation(s)
- Cecilia Gola
- University of Surrey, Guildford, UK
- University of Turin, Grugliasco, Turin, Italy
| | | | | | | | | | | | | | | | | | - Paola Modesto
- Istituto Zooprofilattico Sperimentale del Piemonte Liguria e Valle d'Aosta, Turin, Italy
| | - Katia Varello
- Istituto Zooprofilattico Sperimentale del Piemonte Liguria e Valle d'Aosta, Turin, Italy
| | - Luca Aresu
- University of Turin, Grugliasco, Turin, Italy
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21
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Dadashzadeh A, Moghassemi S, Amorim CA. Bioprinting of a Liposomal Oxygen-Releasing Scaffold for Ovary Tissue Engineering. Tissue Eng Part A 2024. [PMID: 38534964 DOI: 10.1089/ten.tea.2024.0003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/13/2024] Open
Abstract
This study addresses a critical challenge in bioprinting for regenerative medicine, specifically the issue of hypoxia compromising cell viability in engineered tissues. To overcome this hurdle, a novel approach using a microfluidic bioprinter is used to create a two-layer structure resembling the human ovary. This structure incorporates a liposomal oxygen-releasing system to enhance cell viability. The bioprinting technique enables the simultaneous extrusion of two distinct bioinks, namely, bioink A (comprising alginate 1% and 5 mg/mL PEGylated fibrinogen in a 20:1 molar ratio) and bioink B (containing alginate 0.5%). In addition, liposomal catalase and hydrogen peroxide (H2O2) are synthesized and incorporated into bioinks A and B, respectively. The liposomes are prepared using thin film hydration with a monodisperse size (140-160 nm) and high encapsulation efficiency. To assess construct functionality, isolated human ovarian cells are added to bioink A. The bioprinted constructs, with or without liposomal oxygen-releasing systems, are cultured under hypoxic and normoxic conditions for 3 days. Live/Dead assay results demonstrate that liposomal oxygen-releasing systems effectively preserve cell viability in hypoxic conditions, resembling viability under normoxic conditions without liposomes. PrestoBlue assay reveals significantly higher mitochondrial activity in constructs with liposomal oxygen delivery systems under both hypoxic and normoxic conditions. The evaluation of apoptosis status through annexin V immunostaining shows that liposomal oxygen-releasing scaffolds successfully protect cells from hypoxic stress, exhibiting a proportion of apoptotic cells similar to normoxic conditions. In contrast, constructs lacking liposomes in hypoxic conditions exhibit a higher incidence of cells in early-stage apoptosis. In conclusion, the study demonstrates the promising potential of bioprinted oxygen-releasing liposomal scaffolds to protect ovarian stromal cells in hypoxic environments. These innovative scaffolds not only offer protection but also recapitulate the mechanical differences between the medulla and the cortex in the normal ovary structure. This opens new avenues for advanced ovary tissue engineering and transplantation strategies.
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Affiliation(s)
- Arezoo Dadashzadeh
- Pôle de Recherche en Physiopathologie de la Reproduction, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Brussels, Belgium
| | - Saeid Moghassemi
- Pôle de Recherche en Physiopathologie de la Reproduction, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Brussels, Belgium
| | - Christiani A Amorim
- Pôle de Recherche en Physiopathologie de la Reproduction, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Brussels, Belgium
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22
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Plourde G, Roumes H, Suissa L, Hirt L, Doche É, Pellerin L, Bouzier-Sore AK, Quintard H. Neuroprotective effects of lactate and ketone bodies in acute brain injury. J Cereb Blood Flow Metab 2024:271678X241245486. [PMID: 38603600 DOI: 10.1177/0271678x241245486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/13/2024]
Abstract
The goal of neurocritical care is to prevent and reverse the pathologic cascades of secondary brain injury by optimizing cerebral blood flow, oxygen supply and substrate delivery. While glucose is an essential energetic substrate for the brain, we frequently observe a strong decrease in glucose delivery and/or a glucose metabolic dysregulation following acute brain injury. In parallel, during the last decades, lactate and ketone bodies have been identified as potential alternative fuels to provide energy to the brain, both under physiological conditions and in case of glucose shortage. They are now viewed as integral parts of brain metabolism. In addition to their energetic role, experimental evidence also supports their neuroprotective properties after acute brain injury, regulating in particular intracranial pressure control, decreasing ischemic volume, and leading to an improvement in cognitive functions as well as survival. In this review, we present preclinical and clinical evidence exploring the mechanisms underlying their neuroprotective effects and identify research priorities for promoting lactate and ketone bodies use in brain injury.
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Affiliation(s)
- Guillaume Plourde
- Division of Intensive Care Medicine, Department of Medicine, Centre hospitalier de l'Université de Montréal, Montréal, Canada
| | - Hélène Roumes
- Centre de Résonance Magnétique des Systèmes Biologiques (CRMSB), Univ. Bordeaux, CNRS, CRMSB/UMR 5536, Bordeaux, France
| | | | - Lorenz Hirt
- Division of Neurology, Department of Clinical Neuroscience, Centre hospitalier universitaire vaudois, Lausanne, Suisse
| | - Émilie Doche
- Neurovascular Unit, CHU de Marseille, Marseille, France
| | - Luc Pellerin
- IRMETIST Inserm U1313, Université et CHU de Poitiers, Poitiers, France
| | - Anne-Karine Bouzier-Sore
- Centre de Résonance Magnétique des Systèmes Biologiques (CRMSB), Univ. Bordeaux, CNRS, CRMSB/UMR 5536, Bordeaux, France
| | - Hervé Quintard
- Division of Intensive Care Medicine, Department of Anesthesiology, Clinical Pharmacology, Intensive Care and Emergency Medicine, Hôpitaux universitaires de Genéve, Genéve, Suisse
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23
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Urrutia AA, Mesa-Ciller C, Guajardo-Grence A, Alkan HF, Soro-Arnáiz I, Vandekeere A, Ferreira Campos AM, Igelmann S, Fernández-Arroyo L, Rinaldi G, Lorendeau D, De Bock K, Fendt SM, Aragonés J. HIF1α-dependent uncoupling of glycolysis suppresses tumor cell proliferation. Cell Rep 2024; 43:114103. [PMID: 38607920 DOI: 10.1016/j.celrep.2024.114103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 11/20/2023] [Accepted: 03/27/2024] [Indexed: 04/14/2024] Open
Abstract
Hypoxia-inducible factor-1α (HIF1α) attenuates mitochondrial activity while promoting glycolysis. However, lower glycolysis is compromised in human clear cell renal cell carcinomas, in which HIF1α acts as a tumor suppressor by inhibiting cell-autonomous proliferation. Here, we find that, unexpectedly, HIF1α suppresses lower glycolysis after the glyceraldehyde 3-phosphate dehydrogenase (GAPDH) step, leading to reduced lactate secretion in different tumor cell types when cells encounter a limited pyruvate supply such as that typically found in the tumor microenvironment in vivo. This is because HIF1α-dependent attenuation of mitochondrial oxygen consumption increases the NADH/NAD+ ratio that suppresses the activity of the NADH-sensitive GAPDH glycolytic enzyme. This is manifested when pyruvate supply is limited, since pyruvate acts as an electron acceptor that prevents the increment of the NADH/NAD+ ratio. Furthermore, this anti-glycolytic function provides a molecular basis to explain how HIF1α can suppress tumor cell proliferation by increasing the NADH/NAD+ ratio.
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Affiliation(s)
- Andrés A Urrutia
- Research Unit, Hospital of Santa Cristina, Research Institute Princesa (IIS IP), Autonomous University of Madrid, 28009 Madrid, Spain
| | - Claudia Mesa-Ciller
- Research Unit, Hospital of Santa Cristina, Research Institute Princesa (IIS IP), Autonomous University of Madrid, 28009 Madrid, Spain
| | - Andrea Guajardo-Grence
- Research Unit, Hospital of Santa Cristina, Research Institute Princesa (IIS IP), Autonomous University of Madrid, 28009 Madrid, Spain
| | - H Furkan Alkan
- Laboratory of Cellular Metabolism and Metabolic Regulation, VIB Center for Cancer Biology, VIB, Herestraat 49, 3000 Leuven, Belgium; Laboratory of Cellular Metabolism and Metabolic Regulation, Department of Oncology, KU Leuven and Leuven Cancer Institute (LKI), Herestraat 49, 3000 Leuven, Belgium
| | - Inés Soro-Arnáiz
- Laboratory of Exercise and Health, Department of Health Sciences and Technology, Swiss Federal Institute of Technology (ETH), Zurich, Switzerland
| | - Anke Vandekeere
- Laboratory of Cellular Metabolism and Metabolic Regulation, VIB Center for Cancer Biology, VIB, Herestraat 49, 3000 Leuven, Belgium; Laboratory of Cellular Metabolism and Metabolic Regulation, Department of Oncology, KU Leuven and Leuven Cancer Institute (LKI), Herestraat 49, 3000 Leuven, Belgium
| | - Ana Margarida Ferreira Campos
- Laboratory of Cellular Metabolism and Metabolic Regulation, VIB Center for Cancer Biology, VIB, Herestraat 49, 3000 Leuven, Belgium; Laboratory of Cellular Metabolism and Metabolic Regulation, Department of Oncology, KU Leuven and Leuven Cancer Institute (LKI), Herestraat 49, 3000 Leuven, Belgium
| | - Sebastian Igelmann
- Laboratory of Cellular Metabolism and Metabolic Regulation, VIB Center for Cancer Biology, VIB, Herestraat 49, 3000 Leuven, Belgium; Laboratory of Cellular Metabolism and Metabolic Regulation, Department of Oncology, KU Leuven and Leuven Cancer Institute (LKI), Herestraat 49, 3000 Leuven, Belgium
| | - Lucía Fernández-Arroyo
- Research Unit, Hospital of Santa Cristina, Research Institute Princesa (IIS IP), Autonomous University of Madrid, 28009 Madrid, Spain
| | - Gianmarco Rinaldi
- Laboratory of Cellular Metabolism and Metabolic Regulation, VIB Center for Cancer Biology, VIB, Herestraat 49, 3000 Leuven, Belgium; Laboratory of Cellular Metabolism and Metabolic Regulation, Department of Oncology, KU Leuven and Leuven Cancer Institute (LKI), Herestraat 49, 3000 Leuven, Belgium
| | - Doriane Lorendeau
- Laboratory of Cellular Metabolism and Metabolic Regulation, VIB Center for Cancer Biology, VIB, Herestraat 49, 3000 Leuven, Belgium; Laboratory of Cellular Metabolism and Metabolic Regulation, Department of Oncology, KU Leuven and Leuven Cancer Institute (LKI), Herestraat 49, 3000 Leuven, Belgium
| | - Katrien De Bock
- Laboratory of Exercise and Health, Department of Health Sciences and Technology, Swiss Federal Institute of Technology (ETH), Zurich, Switzerland
| | - Sarah-Maria Fendt
- Laboratory of Cellular Metabolism and Metabolic Regulation, VIB Center for Cancer Biology, VIB, Herestraat 49, 3000 Leuven, Belgium; Laboratory of Cellular Metabolism and Metabolic Regulation, Department of Oncology, KU Leuven and Leuven Cancer Institute (LKI), Herestraat 49, 3000 Leuven, Belgium
| | - Julián Aragonés
- Research Unit, Hospital of Santa Cristina, Research Institute Princesa (IIS IP), Autonomous University of Madrid, 28009 Madrid, Spain; CIBER de Enfermedades Cardiovasculares (CIBERCV), Carlos III Health Institute, Madrid, Spain.
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24
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Pilger BI, Castro A, Vasconcellos FF, Moura KF, Signini ÉDF, Marqueze LFB, Fiorenza-Neto EA, Rocha MT, Pedroso GS, Cavaglieri CR, Ferreira AG, Figueiredo C, Minuzzi LG, Gatti da Silva GH, Castro GS, Lira FS, Seelaender M, Pinho RA. Obesity-dependent molecular alterations in fatal COVID-19: A retrospective postmortem study of metabolomic profile of adipose tissue. J Cell Biochem 2024. [PMID: 38591648 DOI: 10.1002/jcb.30566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 03/22/2024] [Accepted: 03/29/2024] [Indexed: 04/10/2024]
Abstract
We investigated the effects of obesity on metabolic, inflammatory, and oxidative stress parameters in the adipose tissue of patients with fatal COVID-19. Postmortem biopsies of subcutaneous adipose tissue were obtained from 25 unvaccinated inpatients who passed from COVID-19, stratified as nonobese (N-OB; body mass index [BMI], 26.5 ± 2.3 kg m-2) or obese (OB BMI 34.2 ± 5.1 kg m-2). Univariate and multivariate analyses revealed that body composition was responsible for most of the variations detected in the metabolome, with greater dispersion observed in the OB group. Fifteen metabolites were major segregation factors. Results from the OB group showed higher levels of creatinine, myo-inositol, O-acetylcholine, and succinate, and lower levels of sarcosine. The N-OB group showed lower levels of glutathione peroxidase activity, as well as higher content of IL-6 and adiponectin. We revealed significant changes in the metabolomic profile of the adipose tissue in fatal COVID-19 cases, with high adiposity playing a key role in these observed variations. These findings highlight the potential involvement of metabolic and inflammatory pathways, possibly dependent on hypoxia, shedding light on the impact of obesity on disease pathogenesis and suggesting avenues for further research and possible therapeutic targets.
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Affiliation(s)
- Bruna I Pilger
- Graduate Program in Health Sciences, School of Medicine and Life Sciences, Pontifícia Universidade Católica do Paraná, Curitiba, Brazil
| | - Alex Castro
- Laboratory of Nuclear Magnetic Resonance, Department of Chemistry, Universidade Federal de São Carlos, São Carlos, Brazil
- Biosciences National Laboratory, Brazilian Center for Research in Energy and Materials, Campinas, Brazil
| | - Franciane F Vasconcellos
- Graduate Program in Health Sciences, School of Medicine and Life Sciences, Pontifícia Universidade Católica do Paraná, Curitiba, Brazil
| | - Karen F Moura
- Graduate Program in Health Sciences, School of Medicine and Life Sciences, Pontifícia Universidade Católica do Paraná, Curitiba, Brazil
| | - Étore De Favari Signini
- Cardiovascular Physical Therapy Laboratory, Department of Physical Therapy, Universidade Federal de São Carlos, São Carlos, Brazil
| | - Luis Felipe B Marqueze
- Graduate Program in Health Sciences, School of Medicine and Life Sciences, Pontifícia Universidade Católica do Paraná, Curitiba, Brazil
| | - Edson A Fiorenza-Neto
- Graduate Program in Health Sciences, School of Medicine and Life Sciences, Pontifícia Universidade Católica do Paraná, Curitiba, Brazil
| | - Mateus T Rocha
- Graduate Program in Health Sciences, School of Medicine and Life Sciences, Pontifícia Universidade Católica do Paraná, Curitiba, Brazil
| | - Giulia S Pedroso
- Graduate Program in Health Sciences, School of Medicine and Life Sciences, Pontifícia Universidade Católica do Paraná, Curitiba, Brazil
| | - Claudia R Cavaglieri
- Exercise Physiology Laboratory, Faculty of Physical Education, University of Campinas, Campinas, Brazil
| | - Antonio G Ferreira
- Laboratory of Nuclear Magnetic Resonance, Department of Chemistry, Universidade Federal de São Carlos, São Carlos, Brazil
| | - Caique Figueiredo
- Exercise and Immunometabolism Research Group, Post-Graduation Program in Movement Sciences, Department of Physical Education, Universidade Estadual Paulista, Presidente Prudente, Brazil
| | - Luciele G Minuzzi
- Exercise and Immunometabolism Research Group, Post-Graduation Program in Movement Sciences, Department of Physical Education, Universidade Estadual Paulista, Presidente Prudente, Brazil
| | - Guilherme H Gatti da Silva
- Cancer Metabolism Research Group, Department of Surgery and LIM 26, Hospital das Clínicas, University of São Paulo, São Paulo, Brazil
| | - Gabriela S Castro
- Cancer Metabolism Research Group, Department of Surgery and LIM 26, Hospital das Clínicas, University of São Paulo, São Paulo, Brazil
| | - Fábio S Lira
- Exercise and Immunometabolism Research Group, Post-Graduation Program in Movement Sciences, Department of Physical Education, Universidade Estadual Paulista, Presidente Prudente, Brazil
| | - Marilia Seelaender
- Cancer Metabolism Research Group, Department of Surgery and LIM 26, Hospital das Clínicas, University of São Paulo, São Paulo, Brazil
| | - Ricardo A Pinho
- Graduate Program in Health Sciences, School of Medicine and Life Sciences, Pontifícia Universidade Católica do Paraná, Curitiba, Brazil
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25
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Luo J, Wang H, Chen J, Wei X, Feng J, Zhang Y, Zhou Y. The Application of Drugs and Nano-Therapies Targeting Immune Cells in Hypoxic Inflammation. Int J Nanomedicine 2024; 19:3441-3459. [PMID: 38617798 PMCID: PMC11015843 DOI: 10.2147/ijn.s456533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Accepted: 03/29/2024] [Indexed: 04/16/2024] Open
Abstract
Immune cells are pivotal in the dynamic interplay between hypoxia and inflammation. During hypoxic conditions, HIF-1α, a crucial transcription factor, facilitates the adaptation of immune cells to the hypoxic micro-environment. This adaptation includes regulating immune cell metabolism, significantly impacting inflammation development. Strategies for anti-inflammatory and hypoxic relief have been proposed, aiming to disrupt the hypoxia-inflammation nexus. Research extensively focuses on anti-inflammatory agents and materials that target immune cells. These primarily mitigate hypoxic inflammation by encouraging M2-macrophage polarization, restraining neutrophil proliferation and infiltration, and maintaining Treg/TH17 balance. Additionally, oxygen-releasing nano-materials play a significant role. By alleviating hypoxia and clearing reactive oxygen species (ROS), these nano-materials indirectly influence immune cell functions. This paper delves into the response of immune cells under hypoxic conditions and the resultant effects on inflammation. It provides a comprehensive overview of various therapies targeting specific immune cells for anti-inflammatory purposes and explores nano-materials that either carry or generate oxygen to alleviate anoxic micro-environments.
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Affiliation(s)
- Jiaxin Luo
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun, 130021, People’s Republic of China
- Department of Oral Implantology, Hospital of Stomatology, Jilin University, Changchun, 130021, People’s Republic of China
| | - Hanchi Wang
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun, 130021, People’s Republic of China
- Department of Oral Implantology, Hospital of Stomatology, Jilin University, Changchun, 130021, People’s Republic of China
| | - Jingxia Chen
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun, 130021, People’s Republic of China
- Department of Oral Implantology, Hospital of Stomatology, Jilin University, Changchun, 130021, People’s Republic of China
| | - Xuyan Wei
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun, 130021, People’s Republic of China
- Department of Oral Implantology, Hospital of Stomatology, Jilin University, Changchun, 130021, People’s Republic of China
| | - Jian Feng
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun, 130021, People’s Republic of China
- Department of Oral Implantology, Hospital of Stomatology, Jilin University, Changchun, 130021, People’s Republic of China
| | - Yidi Zhang
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun, 130021, People’s Republic of China
- Department of Oral Implantology, Hospital of Stomatology, Jilin University, Changchun, 130021, People’s Republic of China
| | - Yanmin Zhou
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun, 130021, People’s Republic of China
- Department of Oral Implantology, Hospital of Stomatology, Jilin University, Changchun, 130021, People’s Republic of China
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26
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Li Z, Liu X, Xiao J, Jiang H, Ma L, Luo Y, Wang M, Zhu Y, Jiang H, Yao H, Ngai T, Guo Q. Ultrastable Iodinated Oil-Based Pickering Emulsion Enables Locoregional Sustained Codelivery of Hypoxia Inducible Factor-1 Inhibitor and Anticancer Drugs for Tumor Combination Chemotherapy. ACS Biomater Sci Eng 2024; 10:2270-2281. [PMID: 38536862 DOI: 10.1021/acsbiomaterials.3c01887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
Tumor hypoxia-associated drug resistance presents a major challenge for cancer chemotherapy. However, sustained delivery systems with a high loading capability of hypoxia-inducible factor-1 (HIF-1) inhibitors are still limited. Here, we developed an ultrastable iodinated oil-based Pickering emulsion (PE) to achieve locally sustained codelivery of a HIF-1 inhibitor of acriflavine and an anticancer drug of doxorubicin for tumor synergistic chemotherapy. The PE exhibited facile injectability for intratumoral administration, great radiopacity for in vivo examination, excellent physical stability (>1 mo), and long-term sustained release capability of both hydrophilic drugs (i.e., acriflavine and doxorubicin). We found that the codelivery of acriflavine and doxorubicin from the PE promoted the local accumulation and retention of both drugs using an acellular liver organ model and demonstrated significant inhibition of tumor growth in a 4T1 tumor-bearing mouse model, improving the chemotherapeutic efficacy through the synergistic effects of direct cytotoxicity with the functional suppression of HIF-1 pathways of tumor cells. Such an iodinated oil-based PE provides a great injectable sustained delivery platform of hydrophilic drugs for locoregional chemotherapy.
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Affiliation(s)
- Zhihua Li
- Shenzhen Key Laboratory of Smart Healthcare Engineering, Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Xiaoya Liu
- Shenzhen Key Laboratory of Smart Healthcare Engineering, Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Jingyu Xiao
- Shenzhen Key Laboratory of Smart Healthcare Engineering, Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Hang Jiang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | - Le Ma
- Shenzhen Key Laboratory of Smart Healthcare Engineering, Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Yucheng Luo
- Shenzhen Key Laboratory of Smart Healthcare Engineering, Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Meijuan Wang
- Shenzhen Key Laboratory of Smart Healthcare Engineering, Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Yuwei Zhu
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong 999077, PR China
| | - Hongliang Jiang
- Shenzhen Key Laboratory of Smart Healthcare Engineering, Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Hanyang Yao
- Shenzhen Key Laboratory of Smart Healthcare Engineering, Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - To Ngai
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong 999077, PR China
| | - Qiongyu Guo
- Shenzhen Key Laboratory of Smart Healthcare Engineering, Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen 518055, China
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27
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Simińska D, Kojder K, Jeżewski D, Tarnowski M, Tomasiak P, Piotrowska K, Kolasa A, Patrycja K, Chlubek D, Baranowska-Bosiacka I. Estrogen α and β Receptor Expression in the Various Regions of Resected Glioblastoma Multiforme Tumors and in an In Vitro Model. Int J Mol Sci 2024; 25:4130. [PMID: 38612938 PMCID: PMC11012502 DOI: 10.3390/ijms25074130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 03/29/2024] [Accepted: 04/05/2024] [Indexed: 04/14/2024] Open
Abstract
Glioblastoma multiforme (GBM) is a malignant tumor with a higher prevalence in men and a higher survival rate in transmenopausal women. It exhibits distinct areas influenced by changing environmental conditions. This study examines how these areas differ in the levels of estrogen receptors (ERs) which play an important role in the development and progression of many cancers, and whose expression levels are often correlated with patient survival. This study utilized two research models: an in vitro model employing the U87 cell line and a second model involving tumors resected from patients (including tumor core, enhancing tumor region, and peritumoral area). ER expression was assessed at both gene and protein levels, with the results validated using confocal microscopy and immunohistochemistry. Under hypoxic conditions, the U87 line displayed a decrease in ERβ mRNA expression and an increase in ERα mRNA expression. In patient samples, ERβ mRNA expression was lower in the tumor core compared to the enhancing tumor region (only in males when the study group was divided by sex). In addition, ERβ protein expression was lower in the tumor core than in the peritumoral area (only in women when the study group was divided by sex). Immunohistochemical analysis indicated the highest ERβ protein expression in the enhancing tumor area, followed by the peritumoral area, and the lowest in the tumor core. The findings suggest that ER expression may significantly influence the development of GBM, exhibiting variability under the influence of conditions present in different tumor areas.
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Affiliation(s)
- Donata Simińska
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University in Szczecin, Powstańców Wlkp. 72, 70-111 Szczecin, Poland; (D.S.); (K.P.); (I.B.-B.)
| | - Klaudyna Kojder
- Department of Anaesthesiology and Intensive Care, Pomeranian Medical University in Szczecin, Unii Lubelskiej 1, 71-252 Szczecin, Poland;
| | - Dariusz Jeżewski
- Department of Neurosurgery and Pediatric Neurosurgery, Pomeranian Medical University in Szczecin, Unii Lubelskiej 1, 71-252 Szczecin, Poland;
- Department of Applied Neurocognitivistics, Pomeranian Medical University in Szczecin, Unii Lubelskiej 1, 71-252 Szczecin, Poland
| | - Maciej Tarnowski
- Department of Physiology in Health Sciences, Pomeranian Medical University in Szczecin, Żołnierska 54, 70-210 Szczecin, Poland;
| | - Patrycja Tomasiak
- Institute of Physical Culture Sciences, University of Szczecin, 70-453 Szczecin, Poland;
| | - Katarzyna Piotrowska
- Department of Physiology, Pomeranian Medical University in Szczecin, Powstańców Wlkp. 72, 70-111 Szczecin, Poland;
| | - Agnieszka Kolasa
- Department of Histology and Embryology, Pomeranian Medical University in Szczecin, Powstańców Wlkp. 72, 70-111 Szczecin, Poland;
| | - Kapczuk Patrycja
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University in Szczecin, Powstańców Wlkp. 72, 70-111 Szczecin, Poland; (D.S.); (K.P.); (I.B.-B.)
| | - Dariusz Chlubek
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University in Szczecin, Powstańców Wlkp. 72, 70-111 Szczecin, Poland; (D.S.); (K.P.); (I.B.-B.)
| | - Irena Baranowska-Bosiacka
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University in Szczecin, Powstańców Wlkp. 72, 70-111 Szczecin, Poland; (D.S.); (K.P.); (I.B.-B.)
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28
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Lozinski M, Lumbers ER, Bowden NA, Martin JH, Fay MF, Pringle KG, Tooney PA. Upregulation of the Renin-Angiotensin System Is Associated with Patient Survival and the Tumour Microenvironment in Glioblastoma. Cells 2024; 13:634. [PMID: 38607073 PMCID: PMC11012120 DOI: 10.3390/cells13070634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Revised: 03/29/2024] [Accepted: 04/03/2024] [Indexed: 04/13/2024] Open
Abstract
Glioblastoma is a highly aggressive disease with poor survival outcomes. An emerging body of literature links the role of the renin-angiotensin system (RAS), well-known for its function in the cardiovascular system, to the progression of cancers. We studied the expression of RAS-related genes (ATP6AP2, AGTR1, AGTR2, ACE, AGT, and REN) in The Cancer Genome Atlas (TCGA) glioblastoma cohort, their relationship to patient survival, and association with tumour microenvironment pathways. The expression of RAS genes was then examined in 12 patient-derived glioblastoma cell lines treated with chemoradiation. In cases of glioblastoma within the TCGA, ATP6AP2, AGTR1, ACE, and AGT had consistent expressions across samples, while AGTR2 and REN were lowly expressed. High expression of AGTR1 was independently associated with lower progression-free survival (PFS) (p = 0.01) and had a non-significant trend for overall survival (OS) after multivariate analysis (p = 0.095). The combined expression of RAS receptors (ATP6AP2, AGTR1, and AGTR2) was positively associated with gene pathways involved in hypoxia, microvasculature, stem cell plasticity, and the molecular characterisation of glioblastoma subtypes. In patient-derived glioblastoma cell lines, ATP6AP2 and AGTR1 were upregulated after chemoradiotherapy and correlated with an increase in HIF1A expression. This data suggests the RAS is correlated with changes in the tumour microenvironment and associated with glioblastoma survival outcomes.
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Affiliation(s)
- Mathew Lozinski
- School of Medicine and Public Health, College of Health, Medicine and Wellbeing, University of Newcastle, Callaghan, NSW 2308, Australia; (M.L.); (N.A.B.); (J.H.M.); (M.F.F.)
- Mark Hughes Foundation Centre for Brain Cancer Research, University of Newcastle, Callaghan, NSW 2308, Australia
- Drug Repurposing and Medicines Research Program, Hunter Medical Research Institute, New Lambton Heights, NSW 2305, Australia
| | - Eugenie R. Lumbers
- School of Biomedical Sciences and Pharmacy, College of Health, Medicine and Wellbeing, University of Newcastle, Callaghan, NSW 2308, Australia; (E.R.L.); (K.G.P.)
- Mothers and Babies Research Program, Hunter Medical Research Institute, New Lambton Heights, NSW 2305, Australia
| | - Nikola A. Bowden
- School of Medicine and Public Health, College of Health, Medicine and Wellbeing, University of Newcastle, Callaghan, NSW 2308, Australia; (M.L.); (N.A.B.); (J.H.M.); (M.F.F.)
- Drug Repurposing and Medicines Research Program, Hunter Medical Research Institute, New Lambton Heights, NSW 2305, Australia
| | - Jennifer H. Martin
- School of Medicine and Public Health, College of Health, Medicine and Wellbeing, University of Newcastle, Callaghan, NSW 2308, Australia; (M.L.); (N.A.B.); (J.H.M.); (M.F.F.)
- Drug Repurposing and Medicines Research Program, Hunter Medical Research Institute, New Lambton Heights, NSW 2305, Australia
| | - Michael F. Fay
- School of Medicine and Public Health, College of Health, Medicine and Wellbeing, University of Newcastle, Callaghan, NSW 2308, Australia; (M.L.); (N.A.B.); (J.H.M.); (M.F.F.)
- Mark Hughes Foundation Centre for Brain Cancer Research, University of Newcastle, Callaghan, NSW 2308, Australia
- Drug Repurposing and Medicines Research Program, Hunter Medical Research Institute, New Lambton Heights, NSW 2305, Australia
- GenesisCare, Gateshead, NSW 2290, Australia
| | - Kirsty G. Pringle
- School of Biomedical Sciences and Pharmacy, College of Health, Medicine and Wellbeing, University of Newcastle, Callaghan, NSW 2308, Australia; (E.R.L.); (K.G.P.)
- Mothers and Babies Research Program, Hunter Medical Research Institute, New Lambton Heights, NSW 2305, Australia
| | - Paul A. Tooney
- Mark Hughes Foundation Centre for Brain Cancer Research, University of Newcastle, Callaghan, NSW 2308, Australia
- Drug Repurposing and Medicines Research Program, Hunter Medical Research Institute, New Lambton Heights, NSW 2305, Australia
- School of Biomedical Sciences and Pharmacy, College of Health, Medicine and Wellbeing, University of Newcastle, Callaghan, NSW 2308, Australia; (E.R.L.); (K.G.P.)
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29
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Whiley L, Lawler NG, Zeng AX, Lee A, Chin ST, Bizkarguenaga M, Bruzzone C, Embade N, Wist J, Holmes E, Millet O, Nicholson JK, Gray N. Cross-Validation of Metabolic Phenotypes in SARS-CoV-2 Infected Subpopulations Using Targeted Liquid Chromatography-Mass Spectrometry (LC-MS). J Proteome Res 2024; 23:1313-1327. [PMID: 38484742 PMCID: PMC11002931 DOI: 10.1021/acs.jproteome.3c00797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 02/21/2024] [Accepted: 02/23/2024] [Indexed: 04/06/2024]
Abstract
To ensure biological validity in metabolic phenotyping, findings must be replicated in independent sample sets. Targeted workflows have long been heralded as ideal platforms for such validation due to their robust quantitative capability. We evaluated the capability of liquid chromatography-mass spectrometry (LC-MS) assays targeting organic acids and bile acids to validate metabolic phenotypes of SARS-CoV-2 infection. Two independent sample sets were collected: (1) Australia: plasma, SARS-CoV-2 positive (n = 20), noninfected healthy controls (n = 22) and COVID-19 disease-like symptoms but negative for SARS-CoV-2 infection (n = 22). (2) Spain: serum, SARS-CoV-2 positive (n = 33) and noninfected healthy controls (n = 39). Multivariate modeling using orthogonal projections to latent structures discriminant analyses (OPLS-DA) classified healthy controls from SARS-CoV-2 positive (Australia; R2 = 0.17, ROC-AUC = 1; Spain R2 = 0.20, ROC-AUC = 1). Univariate analyses revealed 23 significantly different (p < 0.05) metabolites between healthy controls and SARS-CoV-2 positive individuals across both cohorts. Significant metabolites revealed consistent perturbations in cellular energy metabolism (pyruvic acid, and 2-oxoglutaric acid), oxidative stress (lactic acid, 2-hydroxybutyric acid), hypoxia (2-hydroxyglutaric acid, 5-aminolevulinic acid), liver activity (primary bile acids), and host-gut microbial cometabolism (hippuric acid, phenylpropionic acid, indole-3-propionic acid). These data support targeted LC-MS metabolic phenotyping workflows for biological validation in independent sample sets.
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Affiliation(s)
- Luke Whiley
- Australian
National Phenome Centre, Health Futures Institute Harry Perkins Institute, Murdoch University, 5 Robin Warren Drive, Perth, WA 6150, Australia
- Centre
for Computational and Systems Medicine, Health Futures Institute Harry
Perkins Institute, Murdoch University, 5 Robin Warren Drive, Perth, WA 6150, Australia
| | - Nathan G. Lawler
- Australian
National Phenome Centre, Health Futures Institute Harry Perkins Institute, Murdoch University, 5 Robin Warren Drive, Perth, WA 6150, Australia
- Centre
for Computational and Systems Medicine, Health Futures Institute Harry
Perkins Institute, Murdoch University, 5 Robin Warren Drive, Perth, WA 6150, Australia
| | - Annie Xu Zeng
- Australian
National Phenome Centre, Health Futures Institute Harry Perkins Institute, Murdoch University, 5 Robin Warren Drive, Perth, WA 6150, Australia
| | - Alex Lee
- Australian
National Phenome Centre, Health Futures Institute Harry Perkins Institute, Murdoch University, 5 Robin Warren Drive, Perth, WA 6150, Australia
| | - Sung-Tong Chin
- Australian
National Phenome Centre, Health Futures Institute Harry Perkins Institute, Murdoch University, 5 Robin Warren Drive, Perth, WA 6150, Australia
| | - Maider Bizkarguenaga
- Centro
de Investigación Cooperativa en Biociencias—CIC bioGUNE,
Precision Medicine and Metabolism Laboratory, Basque Research and
Technology Alliance, Bizkaia Science and
Technology Park, Building
800, 48160 Derio, Spain
| | - Chiara Bruzzone
- Centro
de Investigación Cooperativa en Biociencias—CIC bioGUNE,
Precision Medicine and Metabolism Laboratory, Basque Research and
Technology Alliance, Bizkaia Science and
Technology Park, Building
800, 48160 Derio, Spain
| | - Nieves Embade
- Centro
de Investigación Cooperativa en Biociencias—CIC bioGUNE,
Precision Medicine and Metabolism Laboratory, Basque Research and
Technology Alliance, Bizkaia Science and
Technology Park, Building
800, 48160 Derio, Spain
| | - Julien Wist
- Australian
National Phenome Centre, Health Futures Institute Harry Perkins Institute, Murdoch University, 5 Robin Warren Drive, Perth, WA 6150, Australia
- Centre
for Computational and Systems Medicine, Health Futures Institute Harry
Perkins Institute, Murdoch University, 5 Robin Warren Drive, Perth, WA 6150, Australia
- Chemistry
Department, Universidad del Valle, Cali 76001, Colombia
| | - Elaine Holmes
- Australian
National Phenome Centre, Health Futures Institute Harry Perkins Institute, Murdoch University, 5 Robin Warren Drive, Perth, WA 6150, Australia
- Centre
for Computational and Systems Medicine, Health Futures Institute Harry
Perkins Institute, Murdoch University, 5 Robin Warren Drive, Perth, WA 6150, Australia
- Department
of Metabolism Digestion and Reproduction, Faculty of Medicine, Imperial
College London, Sir Alexander Fleming Building, South Kensington, London SW7 2AZ, U.K.
| | - Oscar Millet
- Centro
de Investigación Cooperativa en Biociencias—CIC bioGUNE,
Precision Medicine and Metabolism Laboratory, Basque Research and
Technology Alliance, Bizkaia Science and
Technology Park, Building
800, 48160 Derio, Spain
| | - Jeremy K. Nicholson
- Australian
National Phenome Centre, Health Futures Institute Harry Perkins Institute, Murdoch University, 5 Robin Warren Drive, Perth, WA 6150, Australia
- Centre
for Computational and Systems Medicine, Health Futures Institute Harry
Perkins Institute, Murdoch University, 5 Robin Warren Drive, Perth, WA 6150, Australia
- Institute
of Global Health Innovation, Faculty Building South Kensington Campus, Imperial College London, London SW7 2AZ, U.K.
| | - Nicola Gray
- Australian
National Phenome Centre, Health Futures Institute Harry Perkins Institute, Murdoch University, 5 Robin Warren Drive, Perth, WA 6150, Australia
- Centre
for Computational and Systems Medicine, Health Futures Institute Harry
Perkins Institute, Murdoch University, 5 Robin Warren Drive, Perth, WA 6150, Australia
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Ye P, Deng Y, Gu Y, Liu P, Luo J, Pu J, Chen J, Huang Y, Wang N, Ji Y, Chen S. GRK2-YAP signaling is implicated in pulmonary arterial hypertension development. Chin Med J (Engl) 2024; 137:846-858. [PMID: 38242702 PMCID: PMC10997289 DOI: 10.1097/cm9.0000000000002946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Indexed: 01/21/2024] Open
Abstract
BACKGROUND Pulmonary arterial hypertension (PAH) is characterized by excessive proliferation of small pulmonary arterial vascular smooth muscle cells (PASMCs), endothelial dysfunction, and extracellular matrix remodeling. G protein-coupled receptor kinase 2 (GRK2) plays an important role in the maintenance of vascular tone and blood flow. However, the role of GRK2 in the pathogenesis of PAH is unknown. METHODS GRK2 levels were detected in lung tissues from healthy people and PAH patients. C57BL/6 mice, vascular smooth muscle cell-specific Grk2 -knockout mice ( Grk2ΔSM22 ), and littermate controls ( Grk2flox/flox ) were grouped into control and hypoxia mice ( n = 8). Pulmonary hypertension (PH) was induced by exposure to chronic hypoxia (10%) combined with injection of the SU5416 (cHx/SU). The expression levels of GRK2 and Yes-associated protein (YAP) in pulmonary arteries and PASMCs were detected by Western blotting and immunofluorescence staining. The mRNA expression levels of Grk2 and Yes-associated protein ( YAP ) in PASMCs were quantified with real-time polymerase chain reaction (RT-PCR). Wound-healing assay, 3-(4,5)-dimethylthiahiazo (-z-y1)-3,5-di-phenytetrazoliumromide (MTT) assay, and 5-Ethynyl-2'-deoxyuridine (EdU) staining were performed to evaluate the proliferation and migration of PASMCs. Meanwhile, the interaction among proteins was detected by immunoprecipitation assays. RESULTS The expression levels of GRK2 were upregulated in the pulmonary arteries of patients with PAH and the lungs of PH mice. Moreover, cHx/SU-induced PH was attenuated in Grk2ΔSM22 mice compared with littermate controls. The amelioration of PH in Grk2ΔSM22 mice was accompanied by reduced pulmonary vascular remodeling. In vitro study further confirmed that GRK2 knock-down significantly altered hypoxia-induced PASMCs proliferation and migration, whereas this effect was severely intensified by overexpression of GRK2 . We also identified that GRK2 promoted YAP expression and nuclear translocation in PASMCs, resulting in excessive PASMCs proliferation and migration. Furthermore, GRK2 is stabilized by inhibiting phosphorylating GRK2 on Tyr86 and subsequently activating ubiquitylation under hypoxic conditions. CONCLUSION Our findings suggest that GRK2 plays a critical role in the pathogenesis of PAH, via regulating YAP expression and nuclear translocation. Therefore, GRK2 serves as a novel therapeutic target for PAH treatment.
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Affiliation(s)
- Peng Ye
- Division of Cardiovascular Molecular Laboratory, Third Clinical College, Nanjing Medical University, Nanjing, Jiangsu 210006, China
| | - Yunfei Deng
- Division of Cardiovascular Laboratory, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu 210006, China
- Division of Cardiology, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200080, China
| | - Yue Gu
- Division of Cardiovascular Laboratory, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu 210006, China
| | - Pengfei Liu
- Division of Cardiovascular Molecular Laboratory, Third Clinical College, Nanjing Medical University, Nanjing, Jiangsu 210006, China
| | - Jie Luo
- Division of Cardiovascular Laboratory, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu 210006, China
| | - Jiangqin Pu
- Division of Cardiovascular Molecular Laboratory, Third Clinical College, Nanjing Medical University, Nanjing, Jiangsu 210006, China
| | - Jingyu Chen
- Division of Pulmonary Surgery, Wuxi People’s Hospital, Nanjing Medical University, Wuxi, Jiangsu 300247, China
| | - Yu Huang
- Institute of Vascular Medicine, The Chinese University of Hong Kong, Hongkong 999077, China
| | - Nanping Wang
- Health Science Center, East China Normal University, Shanghai 200241, China
| | - Yong Ji
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu 210004, China
| | - Shaoliang Chen
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu 210004, China
- Division of Cardiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu 210006, China
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Kong D, Liu J, Lu J, Zeng C, Chen H, Duan Z, Yu K, Zheng X, Zou P, Zhou L, Lv Y, Zeng Q, Lu L, Li J, He Y. HMGB2 Release Promotes Pulmonary Hypertension and Predicts Severity and Mortality of Patients With Pulmonary Arterial Hypertension. Arterioscler Thromb Vasc Biol 2024. [PMID: 38572649 DOI: 10.1161/atvbaha.123.319916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 03/18/2024] [Indexed: 04/05/2024]
Abstract
BACKGROUND Pulmonary hypertension (PH) is a progressive and life-threatening disease characterized by pulmonary vascular remodeling, which involves aberrant proliferation and apoptosis resistance of the pulmonary arterial smooth muscle cells (PASMCs), resembling the hallmark characteristics of cancer. In cancer, the HMGB2 (high-mobility group box 2) protein promotes the pro-proliferative/antiapoptotic phenotype. However, the function of HMGB2 in PH remains uninvestigated. METHODS Smooth muscle cell (SMC)-specific HMGB2 knockout or HMGB2-OE (HMGB2 overexpression) mice and HMGB2 silenced rats were used to establish hypoxia+Su5416 (HySu)-induced PH mouse and monocrotaline-induced PH rat models, respectively. The effects of HMGB2 and its underlying mechanisms were subsequently elucidated using RNA-sequencing and cellular and molecular biology analyses. Serum HMGB2 levels were measured in the controls and patients with pulmonary arterial (PA) hypertension. RESULTS HMGB2 expression was markedly increased in the PAs of patients with PA hypertension and PH rodent models and was predominantly localized in PASMCs. SMC-specific HMGB2 deficiency or silencing attenuated PH development and pulmonary vascular remodeling in hypoxia+Su5416-induced mice and monocrotaline-treated rats. SMC-specific HMGB2 overexpression aggravated hypoxia+Su5416-induced PH. HMGB2 knockdown inhibited PASMC proliferation in vitro in response to PDGF-BB (platelet-derived growth factor-BB). In contrast, HMGB2 protein stimulation caused the hyperproliferation of PASMCs. In addition, HMGB2 promoted PASMC proliferation and the development of PH by RAGE (receptor for advanced glycation end products)/FAK (focal adhesion kinase)-mediated Hippo/YAP (yes-associated protein) signaling suppression. Serum HMGB2 levels were significantly increased in patients with PA hypertension, and they correlated with disease severity, predicting worse survival. CONCLUSIONS Our findings indicate that targeting HMGB2 might be a novel therapeutic strategy for treating PH. Serum HMGB2 levels could serve as a novel biomarker for diagnosing PA hypertension and determining its prognosis.
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Affiliation(s)
- Deping Kong
- Department of Cardiology, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China. (D.K., J. Liu, C.Z., H.C., X.Z., P.Z., L.Z., J. Li, Y.H.)
- Precision Research Center for Refractory Diseases, Institute for Clinical Research, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, China. (D.K., Z.D., Y.L., Q.Z.)
| | - Jing Liu
- Department of Cardiology, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China. (D.K., J. Liu, C.Z., H.C., X.Z., P.Z., L.Z., J. Li, Y.H.)
| | - Junmi Lu
- Department of Pathology, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China. (J. Lu)
| | - Cheng Zeng
- Department of Cardiology, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China. (D.K., J. Liu, C.Z., H.C., X.Z., P.Z., L.Z., J. Li, Y.H.)
| | - Hao Chen
- Department of Cardiology, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China. (D.K., J. Liu, C.Z., H.C., X.Z., P.Z., L.Z., J. Li, Y.H.)
| | - Zhenzhen Duan
- Precision Research Center for Refractory Diseases, Institute for Clinical Research, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, China. (D.K., Z.D., Y.L., Q.Z.)
| | - Ke Yu
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Guangdong, China (K.Y.)
| | - Xialei Zheng
- Department of Cardiology, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China. (D.K., J. Liu, C.Z., H.C., X.Z., P.Z., L.Z., J. Li, Y.H.)
| | - Pu Zou
- Department of Cardiology, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China. (D.K., J. Liu, C.Z., H.C., X.Z., P.Z., L.Z., J. Li, Y.H.)
| | - Liufang Zhou
- Department of Cardiology, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China. (D.K., J. Liu, C.Z., H.C., X.Z., P.Z., L.Z., J. Li, Y.H.)
- Department of Cardiovascular Medicine, The Affiliated Hospital of Youjiang Medical College for Nationalities, Baise, Guangxi, China (L.Z.)
| | - Yicheng Lv
- Precision Research Center for Refractory Diseases, Institute for Clinical Research, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, China. (D.K., Z.D., Y.L., Q.Z.)
| | - Qingye Zeng
- Precision Research Center for Refractory Diseases, Institute for Clinical Research, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, China. (D.K., Z.D., Y.L., Q.Z.)
| | - Lin Lu
- Department of Cardiology, Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, China. (L.L.)
| | - Jiang Li
- Department of Cardiology, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China. (D.K., J. Liu, C.Z., H.C., X.Z., P.Z., L.Z., J. Li, Y.H.)
| | - Yuhu He
- Department of Cardiology, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China. (D.K., J. Liu, C.Z., H.C., X.Z., P.Z., L.Z., J. Li, Y.H.)
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Liu A, Zhang Y, Lin Y, Li X, Wang S, Pu W, Liu X, Jiang Z, Xiao Z. A rat model of adenoid hypertrophy constructed by using ovalbumin and lipopolysaccharides to induce allergy, chronic inflammation, and chronic intermittent hypoxia. Animal Model Exp Med 2024. [PMID: 38572767 DOI: 10.1002/ame2.12396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 01/18/2024] [Indexed: 04/05/2024] Open
Abstract
BACKGROUND Adenoid hypertrophy (AH) is a common pediatric disease that significantly impacts the growth and quality of life of children. However, there is no replicable and valid model for AH. METHODS An AH rat model was developed via comprehensive allergic sensitization, chronic inflammation induction, and chronic intermittent hypoxia (CIH). The modeling process involved three steps: female Sprague-Dawley rats (aged 4-5 weeks) were used for modeling. Allergen sensitization was induced via intraperitoneal administration and intranasal provocation using ovalbumin (OVA); chronic nasal inflammation was induced through intranasal lipopolysaccharide (LPS) administration for sustained nasal irritation; CIH akin to obstructive sleep apnea/hypopnea syndrome was induced using an animal hypoxia chamber. Postmodel establishment, behaviors, and histological changes in nasopharynx-associated lymphoid tissue (NALT) and nasal mucosa were assessed. Arterial blood gas analysis and quantification of serum and tissue levels of (interleukin) IL-4 and IL-13, OVA-specific immunoglobulin E (sIgE), eosinophil cationic protein (ECP), tumor necrosis factor (TNF-α), IL-17, and transforming growth factor (TGF)-β were conducted for assessment. The treatment group received a combination of mometasone furoate and montelukast sodium for a week and then was evaluated. RESULTS Rats exhibited notable nasal symptoms and hypoxia after modeling. Histopathological analysis revealed NALT follicle hypertrophy and nasal mucosa inflammatory cell infiltration. Elevated IL-4, IL-13, IL-17, OVA-sIgE, ECP, and TNF-α levels and reduced TGF-β levels were observed in the serum and tissue of model-group rats. After a week of treatment, the treatment group exhibited symptom and inflammatory factor improvement. CONCLUSION The model effectively simulates AH symptoms and pathological changes. But it should be further validated for genetic, immunological, and hormonal backgrounds in the currently used and other strains and species.
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Affiliation(s)
- Anqi Liu
- Department of Pediatrics, Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yixing Zhang
- Department of Pediatrics, Lishui Hospital of Traditional Chinese Medicine, Lishui, China
| | - Yan Lin
- Department of Pediatrics, Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xuejun Li
- Department of Pediatrics, Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Shuming Wang
- Department of Pediatrics, Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Wenyan Pu
- Department of Pediatrics, Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xiuxiu Liu
- Department of Pediatrics, Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Zhiyan Jiang
- Department of Pediatrics, Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Zhen Xiao
- Department of Pediatrics, Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
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Stepien BK, Wielockx B. From Vessels to Neurons-The Role of Hypoxia Pathway Proteins in Embryonic Neurogenesis. Cells 2024; 13:621. [PMID: 38607059 PMCID: PMC11012138 DOI: 10.3390/cells13070621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Revised: 03/20/2024] [Accepted: 03/26/2024] [Indexed: 04/13/2024] Open
Abstract
Embryonic neurogenesis can be defined as a period of prenatal development during which divisions of neural stem and progenitor cells give rise to neurons. In the central nervous system of most mammals, including humans, the majority of neocortical neurogenesis occurs before birth. It is a highly spatiotemporally organized process whose perturbations lead to cortical malformations and dysfunctions underlying neurological and psychiatric pathologies, and in which oxygen availability plays a critical role. In case of deprived oxygen conditions, known as hypoxia, the hypoxia-inducible factor (HIF) signaling pathway is activated, resulting in the selective expression of a group of genes that regulate homeostatic adaptations, including cell differentiation and survival, metabolism and angiogenesis. While a physiological degree of hypoxia is essential for proper brain development, imbalanced oxygen levels can adversely affect this process, as observed in common obstetrical pathologies such as prematurity. This review comprehensively explores and discusses the current body of knowledge regarding the role of hypoxia and the HIF pathway in embryonic neurogenesis of the mammalian cortex. Additionally, it highlights existing gaps in our understanding, presents unanswered questions, and provides avenues for future research.
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Affiliation(s)
- Barbara K. Stepien
- Institute of Clinical Chemistry and Laboratory Medicine, Technische Universität Dresden, 01307 Dresden, Germany
| | - Ben Wielockx
- Institute of Clinical Chemistry and Laboratory Medicine, Technische Universität Dresden, 01307 Dresden, Germany
- Experimental Centre, Faculty of Medicine, Technische Universität Dresden, 01307 Dresden, Germany
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Xie J, Xie S, Zhong Z, Dong H, Huang P, Zhou S, Tian H, Zhang J, Wu Y, Li P. Hypoxic preacclimatization combining intermittent hypoxia exposure with physical exercise significantly promotes the tolerance to acute hypoxia. Front Physiol 2024; 15:1367642. [PMID: 38633296 PMCID: PMC11021865 DOI: 10.3389/fphys.2024.1367642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Accepted: 03/19/2024] [Indexed: 04/19/2024] Open
Abstract
Background: Both hypoxia exposure and physical exercise before ascending have been proved to promote high altitude acclimatization, whether the combination of these two methods can bring about a better effect remains uncertain. Therefore, we designed this study to evaluate the effect of hypoxic preacclimatization combining intermittent hypoxia exposure (IHE) and physical exercise on the tolerance to acute hypoxia and screen the optimal preacclimatization scheme among the lowlanders. Methods: A total of 120 Han Chinese young men were enrolled and randomly assigned into four groups, including the control group and three experimental groups with hypoxic preacclimatization of 5-day rest, 5-day exercise, and 3-day exercise in a hypobaric chamber, respectively. Main physical parameters for hypoxia acclimatization, AMS incidence, physical and mental capacity were measured for each participant in the hypobaric chamber simulated to the altitude of 4500 m in the effect evaluation stage. The effect was compared between different schemes. Results: During the effect evaluation stage, SpO2 of the 5-day rest group and 5-day exercise group was significantly higher than that of the control group (p = 0.001 and p = 0.006, respectively). The participants with 5-day rest had significantly lower HR than the controls (p = 0.018). No significant differences of AMS incidence were found among the four groups, while the proportion of AMS headache symptom (moderate and severe vs. mild) was significantly lower in the 3-day exercise group than that in the control group (p = 0.002). The 5-day exercise group had significantly higher VO2max, than the other three groups (p = 0.033, p < 0.001, and p = 0.023, respectively). The 5-day exercise group also had significantly higher digital symbol and pursuit aiming test scores, while shorter color selection reaction time than the control group (p = 0.005, p = 0.005, and p = 0.004, respectively). Conclusion: Hypoxic preacclimatization combining IHE with physical exercise appears to be efficient in promoting the tolerance to acute hypoxia. Hypoxia duration and physical exercise of moderate intensity are helpful for improvement of SpO2 and HR, relief of AMS headache symptoms, and enhancement of mental and physical operation capacity.
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Affiliation(s)
- Jiaxin Xie
- Department of High Altitude Operational Medicine, College of High Altitude Military Medicine, Army Medical University (Third Military Medical University), Chongqing, China
| | - Shenwei Xie
- Department of Health Management, The 953rd Hospital of PLA, Shigatse, China
| | - Zhifeng Zhong
- Department of High Altitude Operational Medicine, College of High Altitude Military Medicine, Army Medical University (Third Military Medical University), Chongqing, China
| | - Huaping Dong
- Department of High Altitude Operational Medicine, College of High Altitude Military Medicine, Army Medical University (Third Military Medical University), Chongqing, China
| | - Pei Huang
- Department of High Altitude Operational Medicine, College of High Altitude Military Medicine, Army Medical University (Third Military Medical University), Chongqing, China
| | - Simin Zhou
- Department of High Altitude Operational Medicine, College of High Altitude Military Medicine, Army Medical University (Third Military Medical University), Chongqing, China
| | - Huaijun Tian
- Department of High Altitude Operational Medicine, College of High Altitude Military Medicine, Army Medical University (Third Military Medical University), Chongqing, China
| | - Jijian Zhang
- Department of High Altitude Operational Medicine, College of High Altitude Military Medicine, Army Medical University (Third Military Medical University), Chongqing, China
| | - Yu Wu
- Department of High Altitude Operational Medicine, College of High Altitude Military Medicine, Army Medical University (Third Military Medical University), Chongqing, China
| | - Peng Li
- Department of High Altitude Operational Medicine, College of High Altitude Military Medicine, Army Medical University (Third Military Medical University), Chongqing, China
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Gu SY, Lu HW, Bai JW, Yang JW, Mao B, Yu L, Xu JF. The role of volatile organic compounds for assessing characteristics and severity of non-cystic fibrosis bronchiectasis: an observational study. Front Med (Lausanne) 2024; 11:1345165. [PMID: 38633315 PMCID: PMC11022847 DOI: 10.3389/fmed.2024.1345165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 03/18/2024] [Indexed: 04/19/2024] Open
Abstract
Background Hypoxic conditions and Pseudomonas aeruginosa (P. aeruginosa) infection are significant factors influencing the prognosis and treatment of patients with bronchiectasis. This study aimed to explore the potential for breath analysis to detect hypoxic conditions and P. aeruginosa infection in bronchiectasis patients by analyzing of volatile organic compounds (VOCs) in exhaled breath condensate (EBC). Methods EBC samples were collected from stable bronchiectasis patients and analyzed using solid phase microextraction-gas chromatography-mass spectrometry (SPME-GCMS). The association of VOCs with bronchiectasis patients' phenotypes including hypoxic conditions and P. aeruginosa isolation was analyzed, which may relate to the severity of bronchiectasis disease. Results Levels of 10-heptadecenoic acid, heptadecanoic acid, longifolene, and decanol in the hypoxia group were higher compared to the normoxia group. Additionally, the levels of 13-octadecenoic acid, octadecenoic acid, phenol, pentadecanoic acid, and myristic acid were increased in P. aeruginosa (+) group compared to the P. aeruginosa (-) group. Subgroup analysis based on the bronchiectasis severity index (BSI)reveled that the levels of 10-heptadecenoic acid, heptadecanoic acid, decanol, 13-octadecenoic acid, myristic acid, and pentadecanoic acid were higher in the severe group compared to the moderate group. Multivariate linear regression showed that 10-heptadecenoic acid and age were independent prognostic factors for bronchiectasis patients with hypoxia. Furthermore, octadecenoic acid, phenol and gender were identified as independent prognostic factors for bronchiectasis patients with P. aeruginosa isolation. Conclusion The study provides evidence that specific VOCs in EBC are correlated with the severity of bronchiectasis, and 10-heptadecenoic acid is shown to be a predictive marker for hypoxia condition in bronchiectasis patients.
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Affiliation(s)
| | | | | | | | | | | | - Jin-Fu Xu
- Department of Respiratory and Critical Care Medicine, Institute of Respiratory Medicine, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
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Chen Z, Wang M, Lv X, Xu Y, Wang X, Li B, Ling C, Du J. Sanshimao formula inhibits the hypoxia-induced pro-angiogenesis of hepatocellular carcinoma cells partly through regulating MKK6/p38 signaling pathway. J Pharm Pharmacol 2024; 76:426-434. [PMID: 38290061 DOI: 10.1093/jpp/rgad086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 09/13/2023] [Indexed: 02/01/2024]
Abstract
OBJECTIVES Sanshimao (SSM) is a traditional Chinese medicine formula for advanced hepatocellular carcinoma (HCC). This study was designed to investigate the effect of SSM on HCC-induced angiogenesis and to explore the potential mechanism. METHODS The endothelial cells were cultured with HCC cells conditioned medium in the 1% oxygen atmosphere to imitate tumor hypoxia microenvironment. EA.hy926 cells migration and tubulogenesis were detected by tube formation and scratch-wound assay. The protein microarray was employed to explore SSM-targeted proteins in Huh7 cells. We also established an animal model to observe the effects of SSM on angiogenesis in vivo. RESULTS The data indicated that SSM reduced HCC-induced migration and tube formation of EA.hy926 cells at low dose under hypoxic conditions. These effects might be partly owing to suppression of HIF-1α-induced vascular endothelial growth factorα expression in Huh7 cells. Moreover, this inhibition was in an MKK6/P38-dependent way. Besides, Huh7 subcutaneous tumor models in nude mice further demonstrated the inhibition of SSM on tumor weight might be exerted partly by reduction of angiogenesis via blocking MKK6/P38 signaling pathways. CONCLUSION SSM inhibits HCC-induced pro-angiogenesis under hypoxic conditions via suppression of MKK6/P38 signaling pathways, which is favorable for HCC tumor growth.
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Affiliation(s)
- Zhe Chen
- Department of Rehabilitation Medicine, Changhai Hospital, Naval Medical University, Shanghai, China
- Qingdao Special Servicemen Recuperation Center of PLA Navy, Qingdao, China
| | - Man Wang
- Department of Traditional Chinese Medicine, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Xiang Lv
- Drug Clinical Trial Institutions, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yannan Xu
- Department of Traditional Chinese Medicine, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Xionghui Wang
- Department of Traditional Chinese Medicine, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Bai Li
- Department of Rehabilitation Medicine, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Changquan Ling
- Department of Traditional Chinese Medicine, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Juan Du
- Department of Traditional Chinese Medicine, Changhai Hospital, Naval Medical University, Shanghai, China
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Chvetsov AV, Muzi M. Equivalent uniform aerobic dose in radiotherapy for hypoxic tumors. Phys Med Biol 2024; 69:085011. [PMID: 38457839 DOI: 10.1088/1361-6560/ad31c8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 03/08/2024] [Indexed: 03/10/2024]
Abstract
Objective.Equivalent uniform aerobic dose (EUAD) is proposed for comparison of integrated cell survival in tumors with different distributions of hypoxia and radiation dose.Approach.The EUAD assumes that for any non-uniform distributions of radiation dose and oxygen enhancement ratio (OER) within a tumor, there is a uniform distribution of radiation dose under hypothetical aerobic conditions with OER = 1 that produces equal integrated survival of clonogenic cells. This definition of EUAD has several advantages. First, the EUAD allows one to compare survival of clonogenic cells in tumors with intra-tumor and inter-tumor variation of radio sensitivity due to hypoxia because the cell survival is recomputed under the same benchmark oxygen level (OER = 1). Second, the EUAD for homogeneously oxygenated tumors is equal to the concept of equivalent uniform dose.Main results. We computed the EUAD using radiotherapy dose and the OER derived from the18F-Fluoromisonidazole PET (18F-FMISO PET) images of hypoxia in patients with glioblastoma, the most common and aggressive type of primary malignant brain tumor. The18F-FMISO PET images include a distribution of SUV (Standardized Uptake Value); therefore, the SUV is converted to partial oxygen pressure (pO2) and then to the OER. The prognostic value of EUAD in radiotherapy for hypoxic tumors is demonstrated using correlation between EUAD and overall survival (OS) in radiotherapy for glioblastoma. The correction to the EUAD for the absolute hypoxic volume that traceable to the tumor control probability improves the correlation with OS.Significance. While the analysis proposed in this research is based on the18F-FMISO PET images for glioblastoma, the EUAD is a universal radiobiological concept and is not associated with any specific cancer or any specific PET or MRI biomarker of hypoxia. Therefore, this research can be generalized to other cancers, for example stage III lung cancer, and to other hypoxia biomarkers.
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Affiliation(s)
- Alexei V Chvetsov
- Department of Radiation Oncology, University of Washington, 1959 NE Pacific Street, Seattle, WA, 98195, United States of America
| | - Mark Muzi
- Department of Radiology, University of Washington, 1959 NE Pacific Street, Seattle, WA, 98195, United States of America
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Liang Z, He H, Zhang B, Kai Z, Zong L. Hypoxia expedites the progression of papillary thyroid carcinoma by promoting the CPT1A-mediated fatty acid oxidative pathway. Drug Dev Res 2024; 85:e22168. [PMID: 38450796 DOI: 10.1002/ddr.22168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 02/08/2024] [Accepted: 02/23/2024] [Indexed: 03/08/2024]
Abstract
Hypoxia has been reported to promote the proliferation and migration of thyroid cancer, while the special mechanism was still unclear. HIF-1α/carnitine palmitoyl-transferase 1A (CPT1A) was found to be associated with papillary thyroid carcinoma (PTC) but the biological role of CPT1A in PTC was not explored. The effects of hypoxia and carnitine palmitoyl-transferase 1A (CPT1A) expression on PTC cells were determined by cell counting kit-8 assay, detection of oxidative stress, inflammation response and mitochondrial membrane motential (MMP). Oil Red O staining and the detection of free fatty acids were performed to assess the status of lipid metabolism. Flow cytometric analysis was performed to assess cell apoptosis. Quantitative polymerase chain reaction (qPCR) and western blot analysis were applied to investigate the expressions of CPT1A and HIF-1α and the molecules involved cell function. The expressions of CPT1A and HIF-1α were significantly increased in PTC cells with or without hypoxia treatment. CPT1A overexpression or silencing promoted or inhibited cell viability, and hypoxia further repressed cell viability. In addition, CPT1A overexpression alleviates hypoxia-induced increased oxidative stress, inflammation response and elevated MMP. CPT1A overexpression enhanced palmitic acid-induced decreased cell growth, enhanced the metabolic capacity of free fatty acid and suppressed cell apoptosis. Animal experiments showed that CPT1A overexpression promoted PTC tumor growth, reduced lipid deposition, oxidative stress and inflammation, as well as enhancing cell function indicators. However, CPT1A silencing showed the opposite effects both in vitro and in vivo. Hypoxia induces the high expression of HIF-1α/CPT1A, thereby reprogramming the lipid metabolism of PTC cells for adapting the hypoxia environment, meanwhile inhibiting the cell damage and apoptosis caused by oxidative stress.
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Affiliation(s)
- Zhou Liang
- Zhantansi Outpatient, Central Medical District of Chinese PLA General Hospital, Beijing, China
| | - Hongsheng He
- Zhejiang Shaoxing Topgen Biomedical Technology Co., Ltd., Shanghai, China
| | - Bing Zhang
- Zhantansi Outpatient, Central Medical District of Chinese PLA General Hospital, Beijing, China
| | - Zhentian Kai
- Zhejiang Shaoxing Topgen Biomedical Technology Co., Ltd., Shanghai, China
| | - Liang Zong
- College of Otolaryngology Head and Neck Surgery, Chinese PLA General Hospital, Beijing, China
- National Clinical Research Center for Otolaryngologic Diseases, Beijing, China
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Zhang W, Li M, Ye X, Jiang M, Wu X, Tang Z, Hu L, Zhang H, Li Y, Pan J. Disturbance of mitochondrial dynamics in myocardium of broilers with pulmonary hypertension syndrome. Br Poult Sci 2024; 65:154-164. [PMID: 38380624 DOI: 10.1080/00071668.2024.2308277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 12/05/2023] [Indexed: 02/22/2024]
Abstract
1. The following study investigated the relationship between pulmonary hypertension syndrome (PHS) and mitochondrial dynamics in broiler cardiomyocytes.2. An animal model for PHS was established by injecting broiler chickens with CM-32 cellulose particles. Broiler myocardial cells were cultured under hypoxic conditions to establish an in vitro model. The ascites heart index, histomorphology, mitochondrial ultrastructure, and mitochondrial dynamic-related gene and protein expression were evaluated.3. The myocardial fibres from PHS broilers had wider spaces and were wavy and twisted and the number of mitochondria increased. Compared with the control group, the gene and protein expression levels were decreased for Opa1, Mfn1, and Mfn2 in the myocardium of PHS broilers. The gene and protein expression was significantly increased for Drp1 and Mff.4. This study showed that PHS in broilers may cause myocardial mitochondrial dysfunction, specifically by diminishing mitochondrial fusion and enhancing fission, causing disturbances in the mitochondrial dynamics of the heart.
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Affiliation(s)
- W Zhang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, P.R. China
| | - M Li
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, P.R. China
| | - X Ye
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, P.R. China
| | - M Jiang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, P.R. China
| | - X Wu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, P.R. China
| | - Z Tang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, P.R. China
| | - L Hu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, P.R. China
| | - H Zhang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, P.R. China
| | - Y Li
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, P.R. China
| | - J Pan
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, P.R. China
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Shang KM, Kato H, Gonzalez N, Kandeel F, Tai YC, Komatsu H. A novel approach to determine the critical survival threshold of cellular oxygen within spheroids via integrating live/dead cell imaging with oxygen modeling. Am J Physiol Cell Physiol 2024; 326:C1262-C1271. [PMID: 38497111 DOI: 10.1152/ajpcell.00024.2024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Revised: 03/07/2024] [Accepted: 03/08/2024] [Indexed: 03/19/2024]
Abstract
Defining the oxygen level that induces cell death within 3-D tissues is vital for understanding tissue hypoxia; however, obtaining accurate measurements has been technically challenging. In this study, we introduce a noninvasive, high-throughput methodology to quantify critical survival partial oxygen pressure (pO2) with high spatial resolution within spheroids by using a combination of controlled hypoxic conditions, semiautomated live/dead cell imaging, and computational oxygen modeling. The oxygen-permeable, micropyramid patterned culture plates created a precisely controlled oxygen condition around the individual spheroid. Live/dead cell imaging provided the geometric information of the live/dead boundary within spheroids. Finally, computational oxygen modeling calculated the pO2 at the live/dead boundary within spheroids. As proof of concept, we determined the critical survival pO2 in two types of spheroids: isolated primary pancreatic islets and tumor-derived pseudoislets (2.43 ± 0.08 vs. 0.84 ± 0.04 mmHg), indicating higher hypoxia tolerance in pseudoislets due to their tumorigenic origin. We also applied this method for evaluating graft survival in cell transplantations for diabetes therapy, where hypoxia is a critical barrier to successful transplantation outcomes; thus, designing oxygenation strategies is required. Based on the elucidated critical survival pO2, 100% viability could be maintained in a typically sized primary islet under the tissue pO2 above 14.5 mmHg. This work presents a valuable tool that is potentially instrumental for fundamental hypoxia research. It offers insights into physiological responses to hypoxia among different cell types and may refine translational research in cell therapies.NEW & NOTEWORTHY Our study introduces an innovative combinatory approach for noninvasively determining the critical survival oxygen level of cells within small cell spheroids, which replicates a 3-D tissue environment, by seamlessly integrating three pivotal techniques: cell death induction under controlled oxygen conditions, semiautomated imaging that precisely identifies live/dead cells, and computational modeling of oxygen distribution. Notably, our method ensures high-throughput analysis applicable to various cell types, offering a versatile solution for researchers in diverse fields.
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Affiliation(s)
- Kuang-Ming Shang
- Department of Medical Engineering, California Institute of Technology, Pasadena, California, United States
| | - Hiroyuki Kato
- Department of Translational Research & Cellular Therapeutics, Arthur Riggs Diabetes & Metabolism Research Institute of City of Hope, Duarte, California, United States
| | - Nelson Gonzalez
- Department of Translational Research & Cellular Therapeutics, Arthur Riggs Diabetes & Metabolism Research Institute of City of Hope, Duarte, California, United States
| | - Fouad Kandeel
- Department of Translational Research & Cellular Therapeutics, Arthur Riggs Diabetes & Metabolism Research Institute of City of Hope, Duarte, California, United States
| | - Yu-Chong Tai
- Department of Medical Engineering, California Institute of Technology, Pasadena, California, United States
| | - Hirotake Komatsu
- Department of Translational Research & Cellular Therapeutics, Arthur Riggs Diabetes & Metabolism Research Institute of City of Hope, Duarte, California, United States
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Huang R, Han B, Zhang Y, Yang J, Wang K, Liu X, Wang Z. Pathway-based stratification of gliomas uncovers four subtypes with different TME characteristics and prognosis. J Cell Mol Med 2024; 28:e18208. [PMID: 38613347 PMCID: PMC11015396 DOI: 10.1111/jcmm.18208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 01/29/2024] [Accepted: 02/16/2024] [Indexed: 04/14/2024] Open
Abstract
Increasing evidences have found that the interactions between hypoxia, immune response and metabolism status in tumour microenvironment (TME) have clinical importance of predicting clinical outcomes and therapeutic efficacy. This study aimed to develop a reliable molecular stratification based on these key components of TME. The TCGA data set (training cohort) and two independent cohorts from CGGA database (validation cohort) were enrolled in this study. First, the enrichment score of 277 TME-related signalling pathways was calculated by gene set variation analysis (GSVA). Then, consensus clustering identified four stable and reproducible subtypes (AFM, CSS, HIS and GLU) based on TME-related signalling pathways, which were characterized by differences in hypoxia and immune responses, metabolism status, somatic alterations and clinical outcomes. Among the four subtypes, HIS subtype had features of immunosuppression, oxygen deprivation and active energy metabolism, resulting in a worst prognosis. Thus, for better clinical application of this acquired stratification, we constructed a risk signature by using the LASSO regression model to identify patients in HIS subtype accurately. We found that the risk signature could accurately screen out the patients in HIS subtype and had important reference value for individualized treatment of glioma patients. In brief, the definition of the TME-related subtypes was a valuable tool for risk stratification in gliomas. It might serve as a reliable prognostic classifier and provide rational design of individualized treatment, and follow-up scheduling for patients with gliomas.
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Affiliation(s)
- Ruoyu Huang
- Department of Neurosurgery, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
- Department of Molecular NeuropathologyBeijing Neurosurgical Institute, Capital Medical UniversityBeijingChina
| | - Bo Han
- Department of Neurosurgery, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
- Department of Molecular NeuropathologyBeijing Neurosurgical Institute, Capital Medical UniversityBeijingChina
| | - Ying Zhang
- Department of Neurosurgery, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
- Department of Molecular NeuropathologyBeijing Neurosurgical Institute, Capital Medical UniversityBeijingChina
| | - Jingchen Yang
- Department of Neurosurgery, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
- Department of Molecular NeuropathologyBeijing Neurosurgical Institute, Capital Medical UniversityBeijingChina
| | - Kuanyu Wang
- Department of Gamma Knife CenterBeijing Neurosurgical Institute, Capital Medical UniversityBeijingChina
| | - Xing Liu
- Department of Neurosurgery, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
- Department of Molecular NeuropathologyBeijing Neurosurgical Institute, Capital Medical UniversityBeijingChina
| | - Zhiliang Wang
- Department of Neurosurgery, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
- Department of Molecular NeuropathologyBeijing Neurosurgical Institute, Capital Medical UniversityBeijingChina
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Sun X, Xu L, Xu HD, Xie L, Wang R, Yang Z, Zhan W, Shen S, Liang G. Intracellular Nitroreductase-Triggered "On" and "Enhanced" Photoacoustic Signals for Sensitive Imaging of Tumor Hypoxia. Adv Healthc Mater 2024; 13:e2303472. [PMID: 37985951 DOI: 10.1002/adhm.202303472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 11/04/2023] [Indexed: 11/22/2023]
Abstract
Current molecular photoacoustic (PA) probes are designed with either stimulus-turned "on" or assembly-enhanced signals to trace biological analytes/events. PA probes based on the nature-derived click reaction between 2-cyano-6-aminobenzothiazole (CBT) and cysteine (Cys) (i.e., CBT-Cys click reaction) possess both "turn-on" and "enhanced" PA signals; and thus, should have higher sensitivity. Nevertheless, such PA probes, particularly those for sensitive imaging of tumor hypoxia, remain scarce. Herein, a PA probe NI-Cys(StBu)-Dap(IR780)-CBT (NI-C-CBT) is rationally designed, which after being internalized by hypoxic tumor cells, is cleaved by nitroreductase under the reduction condition to yield cyclic dimer C-CBT-Dimer to turn the PA signal "ON" and subsequently assembled into nanoparticles C-CBT-NPs with additionally enhanced PA signal ("Enhanced"). NI-C-CBT exhibits 1.7-fold "ON" and 3.2-fold overall "Enhanced" PA signals in vitro. Moreover, it provides 1.9-fold and 2.8-fold overall enhanced PA signals for tumor hypoxia imaging in HeLa cells and HeLa tumor-bearing mice, respectively. This strategy is expected to be widely applied to design more "smart" PA probes for sensitive imaging of important biological events in vivo in near future.
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Affiliation(s)
- Xianbao Sun
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu, 210096, China
| | - Lingling Xu
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu, 210096, China
| | - Hai-Dong Xu
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu, 210096, China
| | - Limin Xie
- Oncology and Hematology, Wenzhou Hospital of Integrated Traditional Chinese and Western Medicine, Wenzhou, Zhejiang, 325027, China
| | - Rui Wang
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu, 210096, China
| | - Zhimou Yang
- Oncology and Hematology, Wenzhou Hospital of Integrated Traditional Chinese and Western Medicine, Wenzhou, Zhejiang, 325027, China
| | - Wenjun Zhan
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu, 210096, China
| | - Shurong Shen
- Oncology and Hematology, Wenzhou Hospital of Integrated Traditional Chinese and Western Medicine, Wenzhou, Zhejiang, 325027, China
| | - Gaolin Liang
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu, 210096, China
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Zuidema S, Wollheim WM, Kucharik CJ, Lammers RB. Existing wetland conservation programs miss nutrient reduction targets. PNAS Nexus 2024; 3:pgae129. [PMID: 38628600 PMCID: PMC11020223 DOI: 10.1093/pnasnexus/pgae129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 03/14/2024] [Indexed: 04/19/2024]
Abstract
Restoring wetlands will reduce nitrogen contamination from excess fertilization but estimates of the efficacy of the strategy vary widely. The intervention is often described as effective for reducing nitrogen export from watersheds to mediate bottom-level hypoxia threatening marine ecosystems. Other research points to the necessity of applying a suite of interventions, including wetland restoration to mitigate meaningful quantities of nitrogen export. Here, we use process-based physical modeling to evaluate the effects of two hypothetical, but plausible large-scale wetland restoration programs intended to reduce nutrient export to the Gulf of Mexico. We show that full adoption of the two programs currently in place can meet as little as 10% to as much as 60% of nutrient reduction targets to reduce the Gulf of Mexico dead zone. These reductions are lower than prior estimates for three reasons. First, net storage of leachate in the subsurface precludes interception and thereby dampens the percent decline in nitrogen export caused by the policy. Unlike previous studies, we first constrained riverine fluxes to match observed fluxes throughout the basin. Second, the locations of many restorable lands are geographically disconnected from heavily fertilized croplands, limiting interception of runoff. Third, daily resolution of the model simulations captured the seasonal and stormflow dynamics that inhibit wetland nutrient removal because peak wetland effectiveness does not coincide with the timing of nutrient inputs. To improve the health of the Gulf of Mexico efforts to eliminate excess nutrient, loading should be implemented beyond the field-margin wetland strategies investigated here.
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Affiliation(s)
- Shan Zuidema
- Earth Systems Research Center, University of New Hampshire, Durham, NH 03824, USA
| | - Wilfred M Wollheim
- Earth Systems Research Center, University of New Hampshire, Durham, NH 03824, USA
- Department of Natural Resources, University of New Hampshire, Durham, NH 03824, USA
| | - Christopher J Kucharik
- Department of Plant and Agroecosystem Sciences, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Richard B Lammers
- Earth Systems Research Center, University of New Hampshire, Durham, NH 03824, USA
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Burdorf LDW, van de Velde SJ, Hidalgo-Martinez S, Meysman FJR. Cable bacteria delay euxinia and modulate phosphorus release in coastal hypoxic systems. R Soc Open Sci 2024; 11:231991. [PMID: 38633354 PMCID: PMC11021937 DOI: 10.1098/rsos.231991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 03/01/2024] [Accepted: 03/01/2024] [Indexed: 04/19/2024]
Abstract
Cable bacteria are long, filamentous bacteria with a unique metabolism involving centimetre-scale electron transport. They are widespread in the sediment of seasonally hypoxic systems and their metabolic activity stimulates the dissolution of iron sulfides (FeS), releasing large quantities of ferrous iron (Fe2+) into the pore water. Upon contact with oxygen, Fe2+ oxidation forms a layer of iron(oxyhydr)oxides (FeOx), which in its turn can oxidize free sulfide (H2S) and trap phosphorus (P) diffusing upward. The metabolism of cable bacteria could thus prevent the release of H2S from the sediment and reduce the risk of euxinia, while at the same time modulating P release over seasonal timescales. However, experimental support for this so-called 'iron firewall hypothesis' is scarce. Here, we collected natural sediment in a seasonally hypoxic basin in three different seasons. Undisturbed sediment cores were incubated under anoxic conditions and the effluxes of H2S, dissolved iron (dFe) and phosphate (PO4 3-) were monitored for up to 140 days. Cores with recent cable bacterial activity revealed a high stock of sedimentary FeOx, which delayed the efflux of H2S for up to 102 days. Our results demonstrate that the iron firewall mechanism could exert an important control on the prevalence of euxinia and regulate the P release in coastal oceans.
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Affiliation(s)
- Laurine D. W. Burdorf
- Geobiology Research Group, Department of Biology, University of Antwerp, Antwerp, Belgium
| | | | | | - Filip J. R. Meysman
- Geobiology Research Group, Department of Biology, University of Antwerp, Antwerp, Belgium
- Department of Biotechnology, Delft University of Technology, Delft, The Netherlands
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Holmström PK, Harman TS, Kalker A, Steiner B, Hawkins E, Jorgensen KC, Zhu KT, Kunwar AJ, Thakur N, Dhungel S, Sherpa N, Day TA, Schagatay EK, Bigham AW, Brutsaert TD. Differential splenic responses to hyperoxic breathing at high altitude in Sherpa and lowlanders. Exp Physiol 2024; 109:535-548. [PMID: 38180087 PMCID: PMC10988702 DOI: 10.1113/ep091579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Accepted: 12/12/2023] [Indexed: 01/06/2024]
Abstract
The human spleen contracts in response to stress-induced catecholamine secretion, resulting in a temporary rise in haemoglobin concentration ([Hb]). Recent findings highlighted enhanced splenic response to exercise at high altitude in Sherpa, possibly due to a blunted splenic response to hypoxia. To explore the potential blunted splenic contraction in Sherpas at high altitude, we examined changes in spleen volume during hyperoxic breathing, comparing acclimatized Sherpa with acclimatized individuals of lowland ancestry. Our study included 14 non-Sherpa (7 female) residing at altitude for a mean continuous duration of 3 months and 46 Sherpa (24 female) with an average of 4 years altitude exposure. Participants underwent a hyperoxic breathing test at altitude (4300 m; barrometric pressure = ∼430 torr;P O 2 ${P_{{{\mathrm{O}}_{\mathrm{2}}}}}$ = ∼90 torr). Throughout the test, we measured spleen volume using ultrasonography and monitored oxygen saturation (S p O 2 ${S_{{\mathrm{p}}{{\mathrm{O}}_{\mathrm{2}}}}}$ ). During rest, Sherpa exhibited larger spleens (226 ± 70 mL) compared to non-Sherpa (165 ± 34 mL; P < 0.001; effect size (ES) = 0.95, 95% CI: 0.3-1.6). In response to hyperoxia, non-Sherpa demonstrated 22 ± 12% increase in spleen size (35 ± 17 mL, 95% CI: 20.7-48.9; P < 0.001; ES = 1.8, 95% CI: 0.93-2.66), while spleen size remained unchanged in Sherpa (-2 ± 13 mL, 95% CI: -2.4 to 7.3; P = 0.640; ES = 0.18, 95% CI: -0.10 to 0.47). Our findings suggest that Sherpa and non-Sherpas of lowland ancestry exhibit distinct variations in spleen volume during hyperoxia at high altitude, potentially indicating two distinct splenic functions. In Sherpa, this phenomenon may signify a diminished splenic response to altitude-related hypoxia at rest, potentially contributing to enhanced splenic contractions during physical stress. Conversely, non-Sherpa experienced a transient increase in spleen size during hyperoxia, indicating an active tonic contraction, which may influence early altitude acclimatization in lowlanders by raising [Hb].
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Affiliation(s)
- Pontus K. Holmström
- Department of Health SciencesMid‐Sweden UniversityÖstersundSweden
- Department of Exercise ScienceSyracuse UniversitySyracuseNew YorkUSA
| | - Taylor S. Harman
- Department of AnthropologySyracuse UniversitySyracuseNew YorkUSA
| | - Anne Kalker
- Department of AnesthesiologyRadboud Medical CenterNijmegenNetherlands
| | - Bethany Steiner
- Department of Exercise ScienceSyracuse UniversitySyracuseNew YorkUSA
| | - Ella Hawkins
- Department of AnthropologySyracuse UniversitySyracuseNew YorkUSA
| | | | - Kimberly T. Zhu
- Department of AnthropologyUniversity of CaliforniaLos AngelesCaliforniaUSA
| | - Ajaya J. Kunwar
- Kathmandu Center for Genomics and Research LaboratoryGlobal Hospital, GwarkoLalitpurNepal
| | - Nilam Thakur
- Kathmandu Center for Genomics and Research LaboratoryGlobal Hospital, GwarkoLalitpurNepal
| | - Sunil Dhungel
- College of MedicineNepalese Army Institute of Health SciencesKathmanduNepal
| | - Nima Sherpa
- Local collaborator without institutional affiliation
| | - Trevor A. Day
- Department of BiologyFaculty of Science and TechnologyMount Royal UniversityCalgaryABCanada
| | | | - Abigail W. Bigham
- Department of AnthropologyUniversity of CaliforniaLos AngelesCaliforniaUSA
| | - Tom D. Brutsaert
- Department of Exercise ScienceSyracuse UniversitySyracuseNew YorkUSA
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Rastogi S, Ansari MN, Saeedan AS, Singh SK, Mukerjee A, Kaithwas G. Novel furan chalcone modulates PHD-2 induction to impart antineoplastic effect in mammary gland carcinoma. J Biochem Mol Toxicol 2024; 38:e23679. [PMID: 38486411 DOI: 10.1002/jbt.23679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 01/12/2024] [Accepted: 02/23/2024] [Indexed: 03/19/2024]
Abstract
Normoxic inactivation of prolyl hydroxylase-2 (PHD-2) in tumour microenvironment paves the way for cancer cells to thrive under the influence of HIF-1α and NF-κB. Henceforth, the present study is aimed to identify small molecule activators of PHD-2. A virtual screening was conducted on a library consisting of 265,242 chemical compounds, with the objective of identifying molecules that exhibit structural similarities to the furan chalcone scaffold. Further, PHD-2 activation potential of screened compound was determined using in vitro 2-oxoglutarate assay. The cytotoxic activity and apoptotic potential of screened compound was determined using various staining techniques, including 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide, 4',6-diamidino-2-phenylindole (DAPI), 1,1',3,3'-tetraethylbenzimi-dazolylcarbocyanine iodide (JC-1), and acridine orange/ethidium bromide (AO/EB), against MCF-7 cells. 7,12-Dimethylbenz[a]anthracene (DMBA) model of mammary gland cancer was used to study the in vivo antineoplastic efficacy of screened compound. [(E)-1-(4-fluorophenyl)-3-(furan-2-yl) prop-2-en-1-one] (BBAP-7) was screened and validated as a PHD-2 activator by an in vitro 2-oxo-glutarate assay. The IC50 of BBAP-7 on MCF-7 cells is 18.84 µM. AO/EB and DAPI staining showed nuclear fragmentation, blebbing and condensation in MCF-7 cells following BBAP-7 treatment. The red-to-green intensity ratio of JC-1 stained MCF-7 cells decreased after BBAP-7 treatment, indicating mitochondrial-mediated apoptosis. DMBA caused mammary gland dysplasia, duct hyperplasia and ductal carcinoma in situ. Carmine staining, histopathology, and scanning electron microscopy demonstrated that BBAP-7, alone or with tirapazamine, restored mammary gland surface morphology and structural integrity. Additionally, BBAP-7 therapy significantly reduced oxidative stress and glycolysis. The findings reveal that BBAP-7 activates PHD-2, making it a promising anticancer drug.
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Affiliation(s)
- Shubham Rastogi
- Department of Pharmaceutical Sciences, School of Biomedical and Pharmaceutical Sciences, Babasaheb Bhimrao Ambedkar University (A Central University), Lucknow, Uttar Pradesh, India
| | - Mohd Nazam Ansari
- Department of Pharmacology, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharaj, Saudi Arabia
| | - Abdulaziz S Saeedan
- Department of Pharmacology, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharaj, Saudi Arabia
| | - Sunil Kumar Singh
- Department of Pharmaceutical Sciences, United Institute of Pharmacy, United Group of Institutions, Prayagraj, India
| | - Alok Mukerjee
- Department of Pharmaceutical Sciences, United Institute of Pharmacy, United Group of Institutions, Prayagraj, India
| | - Gaurav Kaithwas
- Department of Pharmaceutical Sciences, School of Biomedical and Pharmaceutical Sciences, Babasaheb Bhimrao Ambedkar University (A Central University), Lucknow, Uttar Pradesh, India
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Yang Y, Wu J, Zhu H, Shi X, Liu J, Li Y, Wang M. Effect of hypoxia‑HIF‑1α‑periostin axis in thyroid cancer. Oncol Rep 2024; 51:57. [PMID: 38391012 PMCID: PMC10915707 DOI: 10.3892/or.2024.8716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 01/24/2024] [Indexed: 02/24/2024] Open
Abstract
The incidence of thyroid carcinoma (TC) has exhibited a rapid increase in recent years. A proportion of TCs exhibit aggressive behavior. The present study aimed to investigate the potential role of hypoxia‑hypoxia inducible factor 1 subunit α (HIF‑1α)‑periostin axis in the progression of TC. The upregulation of periostin and HIF‑1α expression levels was detected in 95 clinical TC tissues as compared with normal thyroid tissues. Hypoxia promoted the viability and invasion of TC cells and this effect was inhibited by the downregulation of periostin. Hypoxia also induced the Warburg effect in TC and this effect was inhibited by the silencing of periostin. Further investigations revealed that hypoxia activated HIF‑1α, which in turn regulated the expression of periostin. Immunoprecipitation and dual luciferase reporter assays demonstrated that HIF‑1α upregulated the expression of periostin by binding to the promoter of periostin. On the whole, these findings suggest the existence of a hypoxia‑HIF‑1α‑periostin axis in TC and indicate the role of this axis in the progression of TC.
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Affiliation(s)
- Ye Yang
- Department of Obstetrics and Gynecology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Hongkou, Shanghai 200080, P.R. China
| | - Junyi Wu
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Hongkou, Shanghai 200080, P.R. China
| | - Huiqin Zhu
- Department of General Surgery, Dongtai People's Hospital, Dongtai, Jiangsu 224200, P.R. China
| | - Xiaoqin Shi
- Department of Pathology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Hongkou, Shanghai 200080, P.R. China
| | - Jun Liu
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Hongkou, Shanghai 200080, P.R. China
| | - Yang Li
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Hongkou, Shanghai 200080, P.R. China
| | - Min Wang
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Hongkou, Shanghai 200080, P.R. China
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Koshiishi I. [What is the Initiating Reaction for the Lipid Radical Chain Reaction System That Can Induce Ferroptotic Cell Death at the Lower Oxygen Content?]. YAKUGAKU ZASSHI 2024; 144:431-439. [PMID: 38246655 DOI: 10.1248/yakushi.23-00207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2024]
Abstract
The neural cell death in cerebral infarction is suggested to be ferroptosis-like cell death, involving the participation of 15-lipoxygenase (15-LOx). Ferroptosis is induced by lipid radical species generated through the one-electron reduction of lipid hydroperoxides, and it has been shown to propagate intracellularly and intercellularly. At lower oxygen concentration, it appeared that both regiospecificity and stereospecificity of conjugated diene moiety in lipoxygenase-catalysed lipid hydroperoxidation are drastically lost. As a result, in the reaction with linoleic acid, the linoleate 9-peroxyl radical-ferrous lipoxygenase complex dissolves into the linoleate 9-peroxyl radical and ferrous 15-lipoxygenase. Subsequently, the ferrous 15-lipoxygenase then undergoes one-electron reduction of 13-hydroperoxy octadecadienoic acid, generating an alkoxyl radical (pseudoperoxidase reaction). A part of the produced lipid alkoxyl radicals undergoes cleavage of C-C bonds, liberating small molecular hydrocarbon radicals. Particularly, in ω-3 polyunsaturated fatty acids, which are abundant in the vascular and nervous systems, the liberation of small molecular hydrocarbon radicals was more pronounced compared to ω-6 polyunsaturated fatty acids. The involvement of these small molecular hydrocarbon radicals in the propagation of membrane lipid damage is suggested.
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Affiliation(s)
- Ichiro Koshiishi
- Department of Laboratory Sciences, Graduate School of Health Sciences, Gunma University
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Huang G, Zhang M, Wang M, Xu W, Duan X, Han X, Ren J. Pioglitazone, a peroxisome proliferator‑activated receptor γ agonist, induces cell death and inhibits the proliferation of hypoxic HepG2 cells by promoting excessive production of reactive oxygen species. Oncol Lett 2024; 27:160. [PMID: 38449795 PMCID: PMC10915805 DOI: 10.3892/ol.2024.14294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 01/19/2024] [Indexed: 03/08/2024] Open
Abstract
Hypoxia is a hallmark of solid tumors. Hypoxic cancer cells adjust their metabolic characteristics to regulate the production of cellular reactive oxygen species (ROS) and facilitate ROS-mediated metastasis. Peroxisome proliferator-activated receptor γ (PPARγ) is a nuclear receptor that regulates the transcription of fatty acid metabolism-related genes that have a key role in the survival and proliferation function of hypoxic cancer cells. In the present study, mRNA expression in HepG2 cells under chemically induced hypoxia was assessed. The protein expression levels of hypoxia-inducible factor 1α (HIF-1α) were measured using western blotting. Following treatment with the PPARγ agonist pioglitazone, cell viability was assessed using a Cell Counting Kit-8 assay, whilst cell proliferation and death were determined using 5-ethynyl-2'-deoxyuridine incorporation staining, and calcein-acetoxymethyl ester and propidium iodide staining, respectively. Cellular ROS production was assessed using dihydroethidium staining. Cobalt chloride was used to induce hypoxia in HepG2 cells, which was evaluated using HIF-1α expression. The results revealed that the mRNA expression of PPARγ, CD36, acetyl-co-enzyme A dehydrogenase (ACAD) medium chain (ACADM) and ACAD short-chain (ACADS) was downregulated in hypoxic HepG2 cells. The PPARγ agonist pioglitazone decreased the cell viability of hypoxic HepG2 cells by inhibiting cell proliferation and inducing cell death. Following treatment with the PPARγ agonist pioglitazone, hypoxic HepG2 cells produced excessive ROS. ROS-mediated cell death induced by the PPARγ agonist pioglitazone was rescued with the antioxidant N-acetyl-L-cysteine. The downregulated mRNA expression of PPARγ, CD36, ACADM and ACADS was not reverted by a PPARγ agonist in hypoxic HepG2 cells. By contrast, the PPARγ agonist suppressed the mRNA expression of BCL2, which was upregulated in hypoxic HepG2 cells. In summary, the PPARγ agonist stimulated excessive ROS production to inhibit cell proliferation and increase the death of hypoxic HepG2 cells by decreasing BCL2 mRNA expression, suggesting a negative association between PPARγ and BCL2 in the regulation of ROS production in hypoxic HepG2 cells.
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Affiliation(s)
- Guohao Huang
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052 P.R. China
| | - Mengfan Zhang
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052 P.R. China
| | - Manzhou Wang
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052 P.R. China
| | - Wenze Xu
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052 P.R. China
| | - Xuhua Duan
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052 P.R. China
| | - Xinwei Han
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052 P.R. China
| | - Jianzhuang Ren
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052 P.R. China
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Boussinet E, Nachón DJ, Sottolichio A, Lochet A, Stoll S, Bareille G, Tabouret H, Pécheyran C, Acolas ML, Daverat F. Juvenile downstream migration patterns of an anadromous fish, allis shad (Alosa alosa), before and after the population collapse in the Gironde system, France. J Fish Biol 2024; 104:1054-1066. [PMID: 38168734 DOI: 10.1111/jfb.15647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 12/03/2023] [Accepted: 12/13/2023] [Indexed: 01/05/2024]
Abstract
Diadromous fish have exhibited a dramatic decline since the end of the 20th century. The allis shad (Alosa alosa) population in the Gironde-Garonne-Dordogne (GGD) system, once considered as a reference in Europe, remains low despite a fishing ban in 2008. One hypothesis to explain this decline is that the downstream migration and growth dynamics of young stages have changed due to environmental modifications in the rivers and estuary. We retrospectively analysed juvenile growth and migration patterns using otoliths from adults caught in the GGD system 30 years apart during their spawning migration, in 1987 and 2016. We coupled otolith daily growth increments and laser ablation inductively-coupled plasma mass spectrometry measurements of Sr:Ca, Ba:Ca, and Mn:Ca ratios along the longest growth axis from hatching to an age of 100 days (i.e., during the juvenile stage). A back-calculation allowed us to estimate the size of juveniles at the entrance into the brackish estuary. Based on the geochemistry data, we distinguished four different zones that juveniles encountered during their downstream migration: freshwater, fluvial estuary, brackish estuary, and lower estuary. We identified three migration patterns during the first 100 days of their life: (a) Individuals that reached the lower estuary zone, (b) individuals that reached the brackish estuary zone, and (c) individuals that reached the fluvial estuary zone. On average, juveniles from the 1987 subsample stayed slightly longer in freshwater than juveniles from the 2016 subsample. In addition, juveniles from the 2016 subsample entered the brackish estuary at a smaller size. This result suggests that juveniles from the 2016 subsample might have encountered more difficult conditions during their downstream migration, which we attribute to a longer exposure to the turbid maximum zone. This assumption is supported by the microchemical analyses of the otoliths, which suggests based on wider Mn:Ca peaks that juveniles in 2010s experienced a longer period of physiological stress during their downstream migration than juveniles in 1980s. Finally, juveniles from the 2016 subsample took longer than 100 days to exit the lower estuary than we would have expected from previous studies. Adding a new marker (i.e., Ba:Ca) helped us refine the interpretation of the downstream migration for each individual.
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Affiliation(s)
- Elodie Boussinet
- INRAE National Institute for Agriculture and Environment, UR EABX, Aquatic Ecosystems and Global Changes Research Unit, Cestas, France
- University of Applied Sciences Trier-Environmental Campus Birkenfeld, Hoppstädten-Weiersbach, Germany
| | - David José Nachón
- INRAE National Institute for Agriculture and Environment, UR EABX, Aquatic Ecosystems and Global Changes Research Unit, Cestas, France
- Instituto Español de Oceanografía (IEO-CSIC), Centro Oceanográfico de Vigo, Vigo, Spain
| | - Aldo Sottolichio
- Université de Bordeaux, CNRS, Bordeaux INP, EPOC, UMR 5805, Pessac, France
| | - Aude Lochet
- Lake Champlain Sea Grant-SUNY Plattsburgh, Plattsburgh, New York, USA
| | - Stefan Stoll
- University of Applied Sciences Trier-Environmental Campus Birkenfeld, Hoppstädten-Weiersbach, Germany
| | - Gilles Bareille
- Université de Pau et des Pays de l'Adour, E2S UPPA, CNRS, IPREM, MIRA, Pau, France
| | - Helene Tabouret
- Université de Pau et des Pays de l'Adour, E2S UPPA, CNRS, IPREM, MIRA, Pau, France
| | - Christophe Pécheyran
- Université de Pau et des Pays de l'Adour, E2S UPPA, CNRS, IPREM, MIRA, Pau, France
| | - Marie-Laure Acolas
- INRAE National Institute for Agriculture and Environment, UR EABX, Aquatic Ecosystems and Global Changes Research Unit, Cestas, France
| | - Françoise Daverat
- INRAE National Institute for Agriculture and Environment, UR EABX, Aquatic Ecosystems and Global Changes Research Unit, Cestas, France
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