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Chen S, Pan X, Gao P, Wu F. Single-nucleus transcriptome analysis identifies a novel FKBP5+ endothelial cell subtype involved in endothelial-to-mesenchymal transition in adipose tissue during aging. Biochem Biophys Res Commun 2024; 722:150157. [PMID: 38805789 DOI: 10.1016/j.bbrc.2024.150157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Revised: 05/03/2024] [Accepted: 05/21/2024] [Indexed: 05/30/2024]
Abstract
Age-associated adipose tissue (AT) dysfunction is multifactorial and often leads to detrimental health consequences. AT is highly vascularized and endothelial cells (ECs) has been recently identified as a key regulator in the homeostasis of AT. However, the alteration of cell composition in AT during aging and the communication between endothelial cells and adipocytes remain poorly understood. In this study, we take advantage of single nucleus RNA sequencing analysis, and discovered a group of FKBP5+ ECs specifically resident in aged AT. Of interest, FKBP5+ ECs exhibited the potential for endothelial-to-mesenchymal transition (EndoMT) and exhibited a critical role in regulating adipocytes. Furthermore, lineage tracing experiments demonstrated that ECs in aged AT tend to express FKBP5 and undergo EndoMT with progressive loss of endothelial marker. This study may provide a basis for a new mechanism of microvascular ECs-induced AT dysfunction during aging.
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Affiliation(s)
- Siyuan Chen
- Department of Geriatrics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiaoxi Pan
- Department of Cardiovascular Medicine, State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Department of Hypertension, Ruijin Hospital and Shanghai Institute of Hypertension, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Pingjin Gao
- Department of Cardiovascular Medicine, State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Department of Hypertension, Ruijin Hospital and Shanghai Institute of Hypertension, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Fang Wu
- Department of Geriatrics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Shanghai Clinical Research Center for Aging and Medicine, Shanghai, China.
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2
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Ye S, Agalave NM, Ma F, Mahmood DFD, Al-Grety A, Khoonsari PE, Leng L, Svensson CI, Bucala R, Kultima K, Vera PL. MIF-Modulated Spinal Proteins Associated with Persistent Bladder Pain: A Proteomics Study. Int J Mol Sci 2024; 25:4484. [PMID: 38674069 PMCID: PMC11050327 DOI: 10.3390/ijms25084484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 04/10/2024] [Accepted: 04/11/2024] [Indexed: 04/28/2024] Open
Abstract
Bladder pain is a prominent symptom in Interstitial Cystitis/Bladder Pain Syndrome (IC/BPS). We studied spinal mechanisms of bladder pain in mice using a model where repeated activation of intravesical Protease Activated Receptor-4 (PAR4) results in persistent bladder hyperalgesia (BHA) with little or no bladder inflammation. Persistent BHA is mediated by spinal macrophage migration inhibitory factor (MIF), and is associated with changes in lumbosacral proteomics. We investigated the contribution of individual spinal MIF receptors to persistent bladder pain as well as the spinal proteomics changes associated with relief of persistent BHA by spinal MIF antagonism. Female mice with persistent BHA received either intrathecal (i.t.) MIF monoclonal antibodies (mAb) or mouse IgG1 (isotype control antibody). MIF antagonism temporarily reversed persistent BHA (peak effect: 2 h), while control IgG1 had no effect. Moreover, i.t. antagonism of the MIF receptors CD74 and C-X-C chemokine receptor type 4 (CXCR4) partially reversed persistent BHA. For proteomics experiments, four separate groups of mice received either repeated intravesical scrambled peptide and sham i.t. injection (control, no pain group) or repeated intravesical PAR4 and: sham i.t.; isotype IgG1 i.t. (15 μg); or MIF mAb (15 μg). L6-S1 spinal segments were excised 2 h post-injection and examined for proteomics changes using LC-MS/MS. Unbiased proteomics analysis identified and relatively quantified 6739 proteins. We selected proteins that showed significant changes compared to control (no pain group) after intravesical PAR4 (sham or IgG i.t. treatment) and showed no significant change after i.t. MIF antagonism. Six proteins decreased during persistent BHA (V-set transmembrane domain-containing protein 2-like confirmed by immunohistochemistry), while two proteins increased. Spinal MIF antagonism reversed protein changes. Therefore, spinal MIF and MIF receptors mediate persistent BHA and changes in specific spinal proteins. These novel MIF-modulated spinal proteins represent possible new targets to disrupt spinal mechanisms that mediate persistent bladder pain.
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Affiliation(s)
- Shaojing Ye
- Research & Development, Lexington VA Health Care System, Lexington, KY 40502, USA; (S.Y.); (F.M.); (D.F.D.M.)
| | - Nilesh M. Agalave
- Department of Medical Sciences, Clinical Chemistry, Uppsala University, SE-751 85 Uppsala, Sweden; (N.M.A.); (A.A.-G.); (P.E.K.); (K.K.)
| | - Fei Ma
- Research & Development, Lexington VA Health Care System, Lexington, KY 40502, USA; (S.Y.); (F.M.); (D.F.D.M.)
| | - Dlovan F. D. Mahmood
- Research & Development, Lexington VA Health Care System, Lexington, KY 40502, USA; (S.Y.); (F.M.); (D.F.D.M.)
| | - Asma Al-Grety
- Department of Medical Sciences, Clinical Chemistry, Uppsala University, SE-751 85 Uppsala, Sweden; (N.M.A.); (A.A.-G.); (P.E.K.); (K.K.)
| | - Payam E. Khoonsari
- Department of Medical Sciences, Clinical Chemistry, Uppsala University, SE-751 85 Uppsala, Sweden; (N.M.A.); (A.A.-G.); (P.E.K.); (K.K.)
| | - Lin Leng
- Department of Internal Medicine, Yale University, New Haven, CT 06510, USA; (L.L.); (R.B.)
| | - Camilla I. Svensson
- Department of Physiology and Pharmacology, Karolinska Institutet (KI), SE-171 65 Solna, Sweden;
| | - Richard Bucala
- Department of Internal Medicine, Yale University, New Haven, CT 06510, USA; (L.L.); (R.B.)
| | - Kim Kultima
- Department of Medical Sciences, Clinical Chemistry, Uppsala University, SE-751 85 Uppsala, Sweden; (N.M.A.); (A.A.-G.); (P.E.K.); (K.K.)
| | - Pedro L. Vera
- Research & Development, Lexington VA Health Care System, Lexington, KY 40502, USA; (S.Y.); (F.M.); (D.F.D.M.)
- Department of Physiology, University of Kentucky, Lexington, KY 40506, USA
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3
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Chang M, Wang H, Lei Y, Yang H, Xu J, Tang S. Proteomic study of left ventricle and cortex in rats after myocardial infarction. Sci Rep 2024; 14:6866. [PMID: 38514755 PMCID: PMC10958002 DOI: 10.1038/s41598-024-56816-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Accepted: 03/11/2024] [Indexed: 03/23/2024] Open
Abstract
Myocardial infarction (MI) induces neuroinflammation indirectly, chronic neuroinflammation may cause neurodegenerative diseases. Changes in the proteomics of heart and brain tissue after MI may shed new light on the mechanisms involved in neuroinflammation. This study explored brain and heart protein changes after MI with a data-independent acquisition (DIA) mode proteomics approach. Permanent ligation of the left anterior descending coronary artery (LAD) was performed in the heart of rats, and the immunofluorescence of microglia in the brain cortex was performed at 1d, 3d, 5d, and 7d after MI to detect the neuroinflammation. Then proteomics was accomplished to obtain the vital proteins in the heart and brain post-MI. The results show that the number of microglia was significantly increased in the Model-1d group, the Model-3d group, the Model-5d group, and the Model-7d group compared to the Sham group. Various proteins were obtained through DIA proteomics. Linking to key targets of brain disease, 14 proteins were obtained in the brain cortex. Among them, elongation of very long chain fatty acids protein 5 (ELOVL5) and ATP-binding cassette subfamily G member 4 (ABCG4) were verified through western blotting (WB). The results of WB were consistent with the proteomics results. Therefore, these proteins may be related to the pathogenesis of neuroinflammation after MI.
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Affiliation(s)
- Mengli Chang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Huanhuan Wang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Yuxin Lei
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Hongjun Yang
- Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Jing Xu
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Shihuan Tang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
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4
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Lowe NM, Hall AG, Broadley MR, Foley J, Boy E, Bhutta ZA. Preventing and Controlling Zinc Deficiency Across the Life Course: A Call to Action. Adv Nutr 2024; 15:100181. [PMID: 38280724 PMCID: PMC10882121 DOI: 10.1016/j.advnut.2024.100181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 01/11/2024] [Accepted: 01/23/2024] [Indexed: 01/29/2024] Open
Abstract
Through diverse roles, zinc determines a greater number of critical life functions than any other single micronutrient. Beyond the well-recognized importance of zinc for child growth and resistance to infections, zinc has numerous specific roles covering the regulation of glucose metabolism, and growing evidence links zinc deficiency with increased risk of diabetes and cardiometabolic disorders. Zinc nutriture is, thus, vitally important to health across the life course. Zinc deficiency is also one of the most common forms of micronutrient malnutrition globally. A clearer estimate of the burden of health disparity attributable to zinc deficiency in adulthood and later life emerges when accounting for its contribution to global elevated fasting blood glucose and related noncommunicable diseases (NCDs). Yet progress attenuating its prevalence has been limited due, in part, to the lack of sensitive and specific methods to assess human zinc status. This narrative review covers recent developments in our understanding of zinc's role in health, the impact of the changing climate and global context on zinc intake, novel functional biomarkers showing promise for monitoring population-level interventions, and solutions for improving population zinc intake. It aims to spur on implementation of evidence-based interventions for preventing and controlling zinc deficiency across the life course. Increasing zinc intake and combating global zinc deficiency requires context-specific strategies and a combination of complementary, evidence-based interventions, including supplementation, food fortification, and food and agricultural solutions such as biofortification, alongside efforts to improve zinc bioavailability. Enhancing dietary zinc content and bioavailability through zinc biofortification is an inclusive nutrition solution that can benefit the most vulnerable individuals and populations affected by inadequate diets to the greatest extent.
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Affiliation(s)
- Nicola M Lowe
- Center for Global Development, University of Central Lancashire, Preston, United Kingdom.
| | - Andrew G Hall
- Department of Nutrition, University of California, Davis, CA, United States; Department of Nutritional Sciences & Toxicology, University of California, Berkeley, CA, United States
| | - Martin R Broadley
- Rothamsted Research, West Common, Harpenden, United Kingdom; School of Biosciences, University of Nottingham, Loughborough, United Kingdom
| | - Jennifer Foley
- HarvestPlus, International Food Policy Research Institute, Washington, DC, United States
| | - Erick Boy
- HarvestPlus, International Food Policy Research Institute, Washington, DC, United States
| | - Zulfiqar A Bhutta
- Center for Global Child Health, The Hospital for Sick Children, Toronto, ON, Canada; Center of Excellence in Women and Child Health, Aga Khan University, Karachi, Pakistan
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5
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Badran SR, Hamed A. Is the trend toward a sustainable green synthesis of copper oxide nanoparticles completely safe for Oreochromis niloticus when compared to chemical ones?: using oxidative stress, bioaccumulation, and histological biomarkers. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:9477-9494. [PMID: 38190069 PMCID: PMC10824803 DOI: 10.1007/s11356-023-31707-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 12/20/2023] [Indexed: 01/09/2024]
Abstract
Scientists worldwide have noticed that cutting-edge technologies can be used to produce nanoparticles (NPs) in a sustainable and environmentally friendly way, instead of the old methods. However, the effectiveness of this approach for aquatic environments and species still needs to be determined. Therefore, this study aims to compare between the toxicity of green and chemically synthesized copper oxide nanoparticles (GS and CS) CuO NPs at two different concentrations on Nile tilapia (Oreochromis niloticus) using various biomarkers. CuO NPs' formation was proved, and their different characterizations were recorded. Then, the fish samples were randomly allocated in glass aquaria into five groups: one acted as a control group, and the other groups were exposed to two concentrations (25 and 50 mg/L) of GS-CuO NPs and CS-CuO NPs, separately, for 4 days. After the experimental time, in all groups that were exposed to two concentrations of both synthesized CuO NPs, the results revealed that glutathione peroxidase (GPx), catalase (CAT), superoxide dismutase (SOD), and thiobarbituric acid reactive substances (TBARS) levels were elevated in the liver and gills compared to glutathione reduced (GSH) content, which showed a significant decline. Bioaccumulation of Cu was more prevalent in the liver than in the gills, and the highest bioaccumulation capacity was more evident in the groups exposed to CS-CuO NPs. Moreover, the bioaccumulation of Cu caused severe histological changes in the liver and gills. In conclusion, the results suggested that GS-CuO NPs revealed less toxicity than CS-CuO NPs to the examined fish. However, they are still toxic, and their toxic effect cannot be overlooked.
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Affiliation(s)
- Shereen R Badran
- Department of Zoology, Faculty of Science, Cairo University, Giza, Egypt.
| | - Aliaa Hamed
- Department of Biology, Basic Science Center, Misr University for Science and Technology (MUST), Giza, Egypt
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6
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Ye S, Agalave NM, Ma F, D Mahmood DF, Al-Grety A, Khoonsari PE, Svensson CI, Kultima K, Vera PL. Lumbosacral spinal proteomic changes during PAR4-induced persistent bladder pain. Neurosci Lett 2024; 818:137563. [PMID: 38036085 PMCID: PMC10929774 DOI: 10.1016/j.neulet.2023.137563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 11/16/2023] [Accepted: 11/17/2023] [Indexed: 12/02/2023]
Abstract
Repeated intravesical activation of protease-activated receptor-4 (PAR4) in mice results in persistent bladder hyperalgesia (BHA). We investigated spinal proteomic changes associated with persistent BHA. Persistent BHA was induced in female mice by repeated (3x; days 0,2,4; n = 9) intravesical instillation of PAR4 activating peptide (PAR4-AP) while scrambled peptide served as the control (no pain; n = 9) group. The threshold to lower abdominal von Frey stimulation was recorded prior to and during treatment. On day 7, L6-S1 spinal segments were excised and examined for proteomic changes using LC-MS/MS. In-depth, unbiased proteomic tandem-mass tag (TMT) analysis identified and relatively quantified 6739 proteins. We identified significant changes with 29 decreasing and 51 increasing proteins in the persistent BHA group and they were associated with neuroprotection, redox modulation, mitochondrial factors, and neuronal-related proteins. In an additional experiment, decreases in protein levels were confirmed by immunohistochemistry for metallothionein 1/2. Our results show that persistent bladder pain is associated with central (spinal) protein changes. Previous work showed that PAR4-induced bladder pain is mediated, at least in part by spinal MIF. Further functional studies of these top changing proteins may lead to the discovery of novel potential therapeutic targets at the spinal level to modulate persistent bladder pain. Future studies will examine the effect of spinal MIF antagonism on PAR4-induced spinal proteomics associated with persistent bladder pain.
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Affiliation(s)
- Shaojing Ye
- Lexington VA Health Care System, Research and Development, Lexington, KY, USA
| | - Nilesh M Agalave
- Uppsala University, Department of Medical Sciences, Clinical Chemistry, Uppsala, Sweden
| | - Fei Ma
- Lexington VA Health Care System, Research and Development, Lexington, KY, USA
| | - Dlovan F D Mahmood
- Lexington VA Health Care System, Research and Development, Lexington, KY, USA
| | - Asma Al-Grety
- Uppsala University, Department of Medical Sciences, Clinical Chemistry, Uppsala, Sweden
| | - Payam Emani Khoonsari
- Uppsala University, Department of Medical Sciences, Clinical Chemistry, Uppsala, Sweden
| | - Camila I Svensson
- Karolinska Institutet, Depts of Physiology & Pharmacology Department of Physiology and Pharmacology, Stockholm, Sweden
| | - Kim Kultima
- Uppsala University, Department of Medical Sciences, Clinical Chemistry, Uppsala, Sweden
| | - Pedro L Vera
- Lexington VA Health Care System, Research and Development, Lexington, KY, USA; University of Kentucky, Dept of Physiology Department of Physiology, Lexington, KY, USA
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7
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Sanchez-Rodriguez L, Galvez-Fernandez M, Rojas-Benedicto A, Domingo-Relloso A, Amigo N, Redon J, Monleon D, Saez G, Tellez-Plaza M, Martin-Escudero JC, Ramis R. Traffic Density Exposure, Oxidative Stress Biomarkers and Plasma Metabolomics in a Population-Based Sample: The Hortega Study. Antioxidants (Basel) 2023; 12:2122. [PMID: 38136241 PMCID: PMC10740723 DOI: 10.3390/antiox12122122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 12/08/2023] [Accepted: 12/11/2023] [Indexed: 12/24/2023] Open
Abstract
Exposure to traffic-related air pollution (TRAP) generates oxidative stress, with downstream effects at the metabolic level. Human studies of traffic density and metabolomic markers, however, are rare. The main objective of this study was to evaluate the cross-sectional association between traffic density in the street of residence with oxidative stress and metabolomic profiles measured in a population-based sample from Spain. We also explored in silico the potential biological implications of the findings. Secondarily, we assessed the contribution of oxidative stress to the association between exposure to traffic density and variation in plasma metabolite levels. Traffic density was defined as the average daily traffic volume over an entire year within a buffer of 50 m around the participants' residence. Plasma metabolomic profiles and urine oxidative stress biomarkers were measured in samples from 1181 Hortega Study participants by nuclear magnetic resonance spectroscopy and high-performance liquid chromatography, respectively. Traffic density was associated with 7 (out of 49) plasma metabolites, including amino acids, fatty acids, products of bacterial and energy metabolism and fluid balance metabolites. Regarding urine oxidative stress biomarkers, traffic associations were positive for GSSG/GSH% and negative for MDA. A total of 12 KEGG pathways were linked to traffic-related metabolites. In a protein network from genes included in over-represented pathways and 63 redox-related candidate genes, we observed relevant proteins from the glutathione cycle. GSSG/GSH% and MDA accounted for 14.6% and 12.2% of changes in isobutyrate and the CH2CH2CO fatty acid moiety, respectively, which is attributable to traffic exposure. At the population level, exposure to traffic density was associated with specific urine oxidative stress and plasma metabolites. Although our results support a role of oxidative stress as a biological intermediary of traffic-related metabolic alterations, with potential implications for the co-bacterial and lipid metabolism, additional mechanistic and prospective studies are needed to confirm our findings.
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Affiliation(s)
- Laura Sanchez-Rodriguez
- Integrative Epidemiology Group, Department of Chronic Diseases Epidemiology, National Center for Epidemiology, Instituto de Salud Carlos III, 28029 Madrid, Spain; (L.S.-R.); (A.D.-R.); (R.R.)
- Joint Research Institute-National School of Health (IMIENS), National Distance Education University, 28029 Madrid, Spain
| | - Marta Galvez-Fernandez
- Integrative Epidemiology Group, Department of Chronic Diseases Epidemiology, National Center for Epidemiology, Instituto de Salud Carlos III, 28029 Madrid, Spain; (L.S.-R.); (A.D.-R.); (R.R.)
| | - Ayelén Rojas-Benedicto
- Joint Research Institute-National School of Health (IMIENS), National Distance Education University, 28029 Madrid, Spain
- Department of Communicable Diseases, National Center for Epidemiology, Instituto de Salud Carlos III, 28029 Madrid, Spain
- CIBER on Epidemiology and Public Health, Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Arce Domingo-Relloso
- Integrative Epidemiology Group, Department of Chronic Diseases Epidemiology, National Center for Epidemiology, Instituto de Salud Carlos III, 28029 Madrid, Spain; (L.S.-R.); (A.D.-R.); (R.R.)
- Department of Biostatistics, Mailman School of Public Health, Columbia University, New York, NY 10032, USA
| | - Nuria Amigo
- Biosfer Teslab, 43201 Reus, Spain;
- Department of Basic Medical Sciences, Universidad de Rovira i Virgili, 43007 Tarragona, Spain
| | - Josep Redon
- Institute for Biomedical Research, Hospital Clinic de Valencia (INCLIVA), 46010 Valencia, Spain
| | - Daniel Monleon
- Institute for Biomedical Research, Hospital Clinic de Valencia (INCLIVA), 46010 Valencia, Spain
| | - Guillermo Saez
- Department of Biochemistry and Molecular Biology, Faculty of Medicine and Dentistry, Clinical Analysis Service, Hospital Universitario Dr. Peset-FISABIO, Universitat de Valencia, 46020 Valencia, Spain;
| | - Maria Tellez-Plaza
- Integrative Epidemiology Group, Department of Chronic Diseases Epidemiology, National Center for Epidemiology, Instituto de Salud Carlos III, 28029 Madrid, Spain; (L.S.-R.); (A.D.-R.); (R.R.)
| | - Juan Carlos Martin-Escudero
- Department of Internal Medicine, Hospital Universitario Rio Hortega, University of Valladolid, 47012 Valladolid, Spain;
| | - Rebeca Ramis
- Integrative Epidemiology Group, Department of Chronic Diseases Epidemiology, National Center for Epidemiology, Instituto de Salud Carlos III, 28029 Madrid, Spain; (L.S.-R.); (A.D.-R.); (R.R.)
- CIBER on Epidemiology and Public Health, Instituto de Salud Carlos III, 28029 Madrid, Spain
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8
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Melenbacher A, Stillman MJ. Cu(I) binds to Zn7-MT2 via two parallel pathways. Metallomics 2023; 15:mfad053. [PMID: 37699789 DOI: 10.1093/mtomcs/mfad053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 08/30/2023] [Indexed: 09/14/2023]
Abstract
Metallothionein proteins are essential for Cu(I) and Zn(II) homeostasis as well as heavy metal detoxification. The metallation properties of MT2 are of great interest due to their wide patterns of expression and correlation with multiple diseases including cancers, neurological disorders, and respiratory diseases. Use of isotopically pure 63Cu(I) and 68Zn(II) eliminates the complexity of the Cu, Zn-MT2 mass spectral peaks due to significant overlap of naturally abundant isotopes. This allows for the resolution of the precise Cu(I) and Zn(II) stoichiometries when both Cu(I) and Zn(II) are bound to MT2 at physiological pH as expected in vivo. Exact Cu: Zn ratios were determined from mass spectral simulations carried out for every point in the titration. We report that Cu(I) metallation of Zn7-MT2 can only be understood in terms of two pathways occurring in parallel with pathway ① resulting in Cu5Zn5-MT2 and Cu9Zn3-MT2. Pathway ② results in Cu6Zn4-MT2 and Cu10Zn2-MT2, which are the major products of the reaction. From the electrospray ionization (ESI)-mass spectral data we report a series of formation constants (KF) for species starting from Zn7-MT2 up to Cu11Zn2-MT2. Room temperature phosphorescence and circular dichroism (CD) spectra were measured in parallel with the ESI-mass spectrometry data allowing for the assignment of specific species to specific spectral bands. Through analysis of the CD spectral bands, we propose that Cu(I) binds to the β domain first to form a Cu5Zn1 cluster or Cu6 cluster with emission at 670 and 750 nm, respectively, leaving the Zn4 cluster in the α domain.
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Affiliation(s)
- Adyn Melenbacher
- Department of Chemistry, The University of Western Ontario, London, Ontario, Canada
| | - Martin J Stillman
- Department of Chemistry, The University of Western Ontario, London, Ontario, Canada
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9
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Melenbacher A, Stillman MJ. Metallothionein-3: 63 Cu(I) binds to human 68 Zn 7 -βα MT3 with no preference for Cu 4 -β cluster formation. FEBS J 2023; 290:4316-4341. [PMID: 37165729 DOI: 10.1111/febs.16812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 04/25/2023] [Accepted: 05/09/2023] [Indexed: 05/12/2023]
Abstract
Human metallothioneins (MTs) are involved in binding the essential elements, Cu(I) and Zn(II), and the toxic element, Cd(II), in metal-thiolate clusters using 20 reduced cysteines. The brain-specific MT3 binds a mixture of Cu(I) and Zn(II) in vivo. Its metallation properties are critically important because of potential connections between Cu, Zn and neurodegenerative diseases. We report that the use of isotopically pure 63 Cu(I) and 68 Zn(II) greatly enhances the element resolution in the ESI-mass spectral data revealing species with differing Cu:Zn ratios but the same total number of metals. Room temperature phosphorescence and circular dichroism spectral data measured in parallel with ESI-mass spectral data identified the presence of specific Cu(I)-thiolate clusters in the presence of Zn(II). A series of Cu(I)-thiolate clusters form following Cu(I) addition to apo MT3: the two main clusters that form are a Cu6 cluster in the β domain followed by a Cu4 cluster in the α domain. 63 Cu(I) addition to 68 Zn7 -MT3 results in multiple species, including clustered Cu5 Zn5 -MT3 and Cu9 Zn3 -MT3. We assign the domain location of the metals for Cu5 Zn5 -MT3 as a Cu5 Zn1 -β cluster and a Zn4 -α cluster and for Cu9 Zn3 -MT3 as a Cu6 -β cluster and a Cu3 Zn3 -α cluster. While many reports of the average MT3 metal content exist, determining the exact Cu,Zn stoichiometry has proven very difficult even with native ESI-MS. The work in this paper solves the ambiguity introduced by the overlap of the naturally abundant Cu(I) and Zn(II) isotopes. Contrary to other reports, there is no indication of a major fraction of Cu4 -β-Znn -α-MT3 forming.
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Affiliation(s)
- Adyn Melenbacher
- Department of Chemistry, The University of Western Ontario, London, Canada
| | - Martin J Stillman
- Department of Chemistry, The University of Western Ontario, London, Canada
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10
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Gonzalez-Plaza A, Cambra JM, Garcia-Canovas M, Parrilla I, Gil MA, Martinez EA, Rodriguez-Martinez H, Martinez CA, Cuello C. Cryotop vitrification of large batches of pig embryos simultaneously provides excellent postwarming survival rates and minimal interference with gene expression. Theriogenology 2023; 206:1-10. [PMID: 37148716 DOI: 10.1016/j.theriogenology.2023.04.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 04/13/2023] [Accepted: 04/13/2023] [Indexed: 05/08/2023]
Abstract
The most commonly used technique to vitrify pig embryos is the super open pulled straw (SOPS), where a maximum of 6 embryos can be vitrified simultaneously per device without compromising the minimum volume necessary for optimal preservation. Since optimal embryo transfer (ET) demands a transfer of 20-40 embryos per recipient, the customary use of SOPS complicates embryo warming and ET in field conditions. Such complications could be avoided when using the Cryotop® (OC) system, which has been proven to be an effective option for vitrifying at least 20 porcine embryos simultaneously. This study aimed to investigate the changes in the transcriptome of blastocysts caused by vitrification using both systems. In vivo-derived blastocysts were OC- (n = 60; 20 embryos/device) and SOPS- (n = 60; 4-6 embryos/device) vitrified and cultured for 24 h after warming. Nonvitrified blastocysts (n = 60) cultured for 24 h postcollection acted as controls. At the end of culture, 48 viable embryos from each group (6 pools of 8 embryos) were selected for microarray (GeneChip® Porcine Genome Array, P/N 900624, Affymetrix) analysis of differentially expressed genes (DEGs). The survival rate of embryos vitrified with the OC and SOPS systems (>97%) was similar to that of the control embryos (100%). Microarray analysis of each vitrification system compared to the control group showed 245 DEGs (89 downregulated and 156 upregulated) for the OC system and 210 (44 downregulated and 166 upregulated) for the SOPS system. Two pathways were enriched for the DEGs specifically altered in each vitrification system compared to the control (glycolysis/gluconeogenesis and carbon metabolism pathways for the OC system and amino sugar and nucleotide sugar metabolism and lysosome pathways in the SOPS group). The OC group showed 31 downregulated and 24 upregulated genes and two enriched pathways (mineral absorption and amino sugar and nucleotide sugar metabolism pathways) when compared to the SOPS group. In summary, vitrification with the OC system altered fewer genes related to apoptosis and activated genes related to cell proliferation. We conclude that vitrification with either the OC or SOPS system has a moderate to low effect on the transcriptome of in vivo-derived porcine blastocysts. Further investigation is needed to elucidate how the differences in the transcriptome of embryos vitrified with these systems affect their subsequent developmental ability after ET.
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Affiliation(s)
- Alejandro Gonzalez-Plaza
- Department of Medicine & Animal Surgery, Faculty of Veterinary Medicine, International Excellence Campus for Higher Education & Research (CMN), University of Murcia. Institute for Biomedical Research of Murcia (IMIB-Arrixaca), Murcia, Spain
| | - Josep M Cambra
- Department of Medicine & Animal Surgery, Faculty of Veterinary Medicine, International Excellence Campus for Higher Education & Research (CMN), University of Murcia. Institute for Biomedical Research of Murcia (IMIB-Arrixaca), Murcia, Spain
| | - Manuela Garcia-Canovas
- Department of Medicine & Animal Surgery, Faculty of Veterinary Medicine, International Excellence Campus for Higher Education & Research (CMN), University of Murcia. Institute for Biomedical Research of Murcia (IMIB-Arrixaca), Murcia, Spain
| | - Inmaculada Parrilla
- Department of Medicine & Animal Surgery, Faculty of Veterinary Medicine, International Excellence Campus for Higher Education & Research (CMN), University of Murcia. Institute for Biomedical Research of Murcia (IMIB-Arrixaca), Murcia, Spain
| | - Maria A Gil
- Department of Medicine & Animal Surgery, Faculty of Veterinary Medicine, International Excellence Campus for Higher Education & Research (CMN), University of Murcia. Institute for Biomedical Research of Murcia (IMIB-Arrixaca), Murcia, Spain
| | - Emilio A Martinez
- Department of Medicine & Animal Surgery, Faculty of Veterinary Medicine, International Excellence Campus for Higher Education & Research (CMN), University of Murcia. Institute for Biomedical Research of Murcia (IMIB-Arrixaca), Murcia, Spain
| | - Heriberto Rodriguez-Martinez
- Department of Biomedical & Clinical Sciences (BKV), BKH/Obstetrics & Gynecology, Faculty of Medicine and Health Sciences, Linköping University, Linköping, Sweden
| | - Cristina A Martinez
- Department of Animal Reproduction. National Institute for Agriculture and Food Research and Technology (INIA-CSIC), Madrid, Spain.
| | - Cristina Cuello
- Department of Medicine & Animal Surgery, Faculty of Veterinary Medicine, International Excellence Campus for Higher Education & Research (CMN), University of Murcia. Institute for Biomedical Research of Murcia (IMIB-Arrixaca), Murcia, Spain.
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11
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Yao W, Chen X, Cui X, Zhou B, Zhao B, Lin Z, Miao J. Esterase D interacts with metallothionein 2A and inhibits the migration of A549 lung cancer cells in vitro. J Cell Biochem 2023; 124:373-381. [PMID: 36649442 DOI: 10.1002/jcb.30371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 11/29/2022] [Accepted: 01/06/2023] [Indexed: 01/19/2023]
Abstract
Esterase D (ESD) is a nonspecific esterase widely distributed in various organisms. ESD plays an important role in regulating cholesterol efflux, inhibiting viral replication and lung cancer growth. MT2A (metallothionein 2A) is the most important isoform of metallothionein (MTs) in human and high expression of MT2A in tumors represents poor prognosis and metastatic behavior. However, there are no reports about the molecular mechanism of ESD in the regulation of tumor metastasis. In this study, we found for the first time that activation ESD promoted its interaction with MT2A and decreased the protein level of MT2A, which resulting in the concentration of free zinc ions up-regulated, and inhibited the migration of A549 lung cancer cells in vitro.
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Affiliation(s)
- Wen Yao
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Science, Shandong University, Qingdao, People's Republic of China
- Jinan Microecological Biomedicine Shandong Laboratory, Jinan, People's Republic of China
| | - Xinpeng Chen
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Science, Shandong University, Qingdao, People's Republic of China
- Hubei Key laboratory of Edible Wild Plants Conservation & Utilization, School of Life Science, National Demonstration Center for Experimental Biology Education, Hubei Normal University, Huangshi, People's Republic of China
| | - Xiaoling Cui
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Science, Shandong University, Qingdao, People's Republic of China
| | - Bangzhao Zhou
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Science, Shandong University, Qingdao, People's Republic of China
| | - Baoxiang Zhao
- School of Chemistry and Chemical Engineering, Institute of Organic Chemistry, Shandong University, Jinan, People's Republic of China
| | - ZhaoMin Lin
- Institute of Medical Science, The Second Hospital of Shandong University, Jinan, People's Republic of China
| | - Junying Miao
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Science, Shandong University, Qingdao, People's Republic of China
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12
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Li J, Lei Y, Zhao Y. Metallothionein-2A Protects Cardiomyocytes from Hypoxia/reper-Fusion through Inhibiting p38. Cell Biochem Biophys 2023; 81:69-75. [PMID: 36445616 DOI: 10.1007/s12013-022-01118-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Accepted: 11/11/2022] [Indexed: 11/30/2022]
Abstract
The reperfusion of coronary artery blood supply is often accompanied by myocardial hypoxia/reperfusion (H/R) injury, and induced cardiomyocytes apoptosis. The activation of p38 can induce apoptosis, thereby aggravating the myocardial H/R injury. Metallothionein-2A (MT2A) has the functions of anti-apoptosis and protective effect through p38. However, it is not clear that MT2A may protect cardiomyocytes from H/R injury through p38 signaling pathway. Here, we constructed an H/R model for H9c2 cardiomyocytes to explore the protective effect of MT2A on cardiomyocytes apoptosis during the process of H/R through p38 signal pathway. The results revealed that both endogenously overexpressed MT2A and exogenously added MT2A can inhibit the active expression of p-p38 and cleaved caspase-3 under H/R. Based on our results, H/R induced cardiomyocytes apoptosis and activation of p38. And, MT2A can inhibit the active expression of caspase-3 and p38. We found that MT2A can protect cardiomyocytes apoptosis from H/R injury through p38 signaling pathway.
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Affiliation(s)
- Jike Li
- Cardiovascular Department, Xi'an Hospital of Traditional Chinese Medicine, No. 69, Fengcheng 8th Road, Weiyang District, Xi'an, Shaanxi Province, 710021, China
| | - Yuanlin Lei
- Cardiovascular Department, Xi'an Hospital of Traditional Chinese Medicine, No. 69, Fengcheng 8th Road, Weiyang District, Xi'an, Shaanxi Province, 710021, China
| | - Ying Zhao
- Cardiovascular Surgery Department, First Affiliated Hospital of Hainan Medical University, No. 31, Longhua Road, Haikou, Hainan Province, 570102, China.
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13
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Reversal of Multidrug Resistance by Symmetrical Selenoesters in Colon Adenocarcinoma Cells. Pharmaceutics 2023; 15:pharmaceutics15020610. [PMID: 36839934 PMCID: PMC9967742 DOI: 10.3390/pharmaceutics15020610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 01/31/2023] [Accepted: 02/07/2023] [Indexed: 02/15/2023] Open
Abstract
Recently, selenium containing derivatives have attracted more attention in medicinal chemistry. In the present work, the anticancer activity of symmetrical selenoesters was investigated by studying the reversal of efflux pump-related and apoptosis resistance in sensitive and resistant human colon adenocarcinoma cells expressing the ABCB1 protein. The combined effect of the compounds with doxorubicin was demonstrated with a checkerboard assay. The ABCB1 inhibitory and the apoptosis-inducing effects of the derivatives were measured with flow cytometry. Whole transcriptome sequencing was carried out on Illumina platform upon the treatment of resistant cells with the most potent derivatives. One ketone and three methyl ester selenoesters showed synergistic or weak synergistic interaction with doxorubicin, respectively. Ketone selenoesters were the most potent ABCB1 inhibitors and apoptosis inducers. Nitrile selenoesters could induce moderate early and late apoptotic processes that could be explained by their ABCB1 modulating properties. The transcriptome analysis revealed that symmetrical selenoesters may influence the redox state of the cells and interfere with metastasis formation. It can be assumed that these symmetrical selenocompounds possess toxic, DNA-damaging effects due to the presence of two selenium atoms in the molecule, which may be augmented by the presence of symmetrical groups.
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14
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Pacwa A, Machowicz J, Akhtar S, Rodak P, Liu X, Pietrucha-Dutczak M, Lewin-Kowalik J, Amadio M, Smedowski A. Deficiency of the RNA-binding protein ELAVL1/HuR leads to the failure of endogenous and exogenous neuroprotection of retinal ganglion cells. Front Cell Neurosci 2023; 17:1131356. [PMID: 36874215 PMCID: PMC9982123 DOI: 10.3389/fncel.2023.1131356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Accepted: 02/06/2023] [Indexed: 02/19/2023] Open
Abstract
Introduction ELAVL1/HuR is a keystone regulator of gene expression at the posttranscriptional level, including stress response and homeostasis maintenance. The aim of this study was to evaluate the impact of hur silencing on the age-related degeneration of retinal ganglion cells (RGC), which potentially describes the efficiency of endogenous neuroprotection mechanisms, as well as to assess the exogenous neuroprotection capacity of hur-silenced RGC in the rat glaucoma model. Methods The study consisted of in vitro and in vivo approaches. In vitro, we used rat B-35 cells to investigate, whether AAV-shRNA-HuR delivery affects survival and oxidative stress markers under temperature and excitotoxic insults. In vivo approach consisted of two different settings. In first one, 35 eight-week-old rats received intravitreal injection of AAV-shRNA-HuR or AAV-shRNA scramble control. Animals underwent electroretinography tests and were sacrificed 2, 4 or 6 months after injection. Retinas and optic nerves were collected and processed for immunostainings, electron microscopy and stereology. For the second approach, animals received similar gene constructs. To induce chronic glaucoma, 8 weeks after AAV injection, unilateral episcleral vein cauterization was performed. Animals from each group received intravitreal injection of metallothionein II. Animals underwent electroretinography tests and were sacrificed 8 weeks later. Retinas and optic nerves were collected and processed for immunostainings, electron microscopy and stereology. Results Silencing of hur induced apoptosis and increased oxidative stress markers in B-35 cells. Additionally, shRNA treatment impaired the cellular stress response to temperature and excitotoxic insults. In vivo, RGC count was decreased by 39% in shRNA-HuR group 6 months after injection, when compared to shRNA scramble control group. In neuroprotection study, the average loss of RGCs was 35% in animals with glaucoma treated with metallothionein and shRNA-HuR and 11.4% in animals with glaucoma treated with metallothionein and the scramble control shRNA. An alteration in HuR cellular content resulted in diminished photopic negative responses in the electroretinogram. Conclusions Based on our findings, we conclude that HuR is essential for the survival and efficient neuroprotection of RGC and that the induced alteration in HuR content accelerates both the age-related and glaucoma-induced decline in RGC number and function, further confirming HuR's key role in maintaining cell homeostasis and its possible involvement in the pathogenesis of glaucoma.
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Affiliation(s)
- Anna Pacwa
- Department of Physiology, Faculty of Medical Sciences in Katowice, Medical University of Silesia in Katowice, Katowice, Poland.,GlaucoTech Co., Katowice, Poland
| | - Joanna Machowicz
- Department of Physiology, Faculty of Medical Sciences in Katowice, Medical University of Silesia in Katowice, Katowice, Poland
| | - Saeed Akhtar
- College of Applied Medical Sciences, Inaya Medical Colleges, Riyadh, Saudi Arabia.,Department of Optometry, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Piotr Rodak
- Department of Physiology, Faculty of Medical Sciences in Katowice, Medical University of Silesia in Katowice, Katowice, Poland
| | - Xiaonan Liu
- Department of Physiology, Faculty of Medical Sciences in Katowice, Medical University of Silesia in Katowice, Katowice, Poland.,Institute of Biotechnology, HiLIFE, University of Helsinki, Helsinki, Finland
| | - Marita Pietrucha-Dutczak
- Department of Physiology, Faculty of Medical Sciences in Katowice, Medical University of Silesia in Katowice, Katowice, Poland
| | - Joanna Lewin-Kowalik
- Department of Physiology, Faculty of Medical Sciences in Katowice, Medical University of Silesia in Katowice, Katowice, Poland.,GlaucoTech Co., Katowice, Poland
| | - Marialaura Amadio
- Department of Drug Sciences, Section of Pharmacology, The University of Pavia, Pavia, Italy
| | - Adrian Smedowski
- Department of Physiology, Faculty of Medical Sciences in Katowice, Medical University of Silesia in Katowice, Katowice, Poland.,GlaucoTech Co., Katowice, Poland
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15
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Nakai Y, Miyakawa K, Yamaoka Y, Hatayama Y, Nishi M, Suzuki H, Kimura H, Takahashi H, Kimura Y, Ryo A. Generation and Utilization of a Monoclonal Antibody against Hepatitis B Virus Core Protein for a Comprehensive Interactome Analysis. Microorganisms 2022; 10:microorganisms10122381. [PMID: 36557634 PMCID: PMC9783060 DOI: 10.3390/microorganisms10122381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 11/22/2022] [Accepted: 11/29/2022] [Indexed: 12/05/2022] Open
Abstract
Hepatitis B virus (HBV) core antigen (HBc) is a structural protein that forms the viral nucleocapsid and is involved in various steps of the viral replication cycle, but its role in the pathogenesis of HBV infection is still elusive. In this study, we generated a mouse monoclonal antibody (mAb) against HBc and used it in antibody-based in situ biotinylation analysis in order to identify host proteins that interact with HBc. HBc antigen was produced with a wheat germ cell-free protein synthesis system and used to immunize mice. Among the established hybridoma clones, a single clone (mAb #7) was selected and further characterized for its ability in the antibody-based in situ biotinylation analysis to collect host proteins that are in the vicinity of HBc. Using mass spectrometry, we identified 215 HBc-interacting host proteins, three of which bind HBc most significantly under hypoxic conditions. Our results indicate that mAb #7 can be used to systematically identify host proteins that interact with HBc under pathophysiological conditions, and thus may be useful to explore the molecular pathways involved in HBV-induced cytopathogenesis.
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Affiliation(s)
- Yusuke Nakai
- Department of Microbiology, Yokohama City University School of Medicine, Yokohama 236-0004, Japan
- Advanced Medical Research Center, Yokohama City University, Yokohama 236-0004, Japan
| | - Kei Miyakawa
- Department of Microbiology, Yokohama City University School of Medicine, Yokohama 236-0004, Japan
| | - Yutaro Yamaoka
- Department of Microbiology, Yokohama City University School of Medicine, Yokohama 236-0004, Japan
- Life Science Laboratory, Technology and Development Division, Kanto Chemical Co., Inc., Isehara 259-1146, Japan
| | - Yasuyoshi Hatayama
- Department of Microbiology, Yokohama City University School of Medicine, Yokohama 236-0004, Japan
- Advanced Medical Research Center, Yokohama City University, Yokohama 236-0004, Japan
| | - Mayuko Nishi
- Department of Microbiology, Yokohama City University School of Medicine, Yokohama 236-0004, Japan
| | - Hidefumi Suzuki
- Department of Molecular Biology, Yokohama City University School of Medicine, Yokohama 236-0004, Japan
| | - Hirokazu Kimura
- Department of Health Science, Gunma Paz University Graduate School, Takasaki 370-0006, Japan
| | - Hidehisa Takahashi
- Department of Molecular Biology, Yokohama City University School of Medicine, Yokohama 236-0004, Japan
| | - Yayoi Kimura
- Advanced Medical Research Center, Yokohama City University, Yokohama 236-0004, Japan
| | - Akihide Ryo
- Department of Microbiology, Yokohama City University School of Medicine, Yokohama 236-0004, Japan
- Advanced Medical Research Center, Yokohama City University, Yokohama 236-0004, Japan
- Correspondence: ; Tel.: +81-45-787-2602
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16
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Zinc in Human Health and Infectious Diseases. Biomolecules 2022; 12:biom12121748. [PMID: 36551176 PMCID: PMC9775844 DOI: 10.3390/biom12121748] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 11/22/2022] [Accepted: 11/23/2022] [Indexed: 11/27/2022] Open
Abstract
During the last few decades, the micronutrient zinc has proven to be an important metal ion for a well-functioning immune system, and thus also for a suitable immune defense. Nowadays, it is known that the main cause of zinc deficiency is malnutrition. In particular, vulnerable populations, such as the elderly in Western countries and children in developing countries, are often affected. However, sufficient zinc intake and homeostasis is essential for a healthy life, as it is known that zinc deficiency is associated with a multitude of immune disorders such as metabolic and chronic diseases, as well as infectious diseases such as respiratory infections, malaria, HIV, or tuberculosis. Moreover, the modulation of the proinflammatory immune response and oxidative stress is well described. The anti-inflammatory and antioxidant properties of zinc have been known for a long time, but are not comprehensively researched and understood yet. Therefore, this review highlights the current molecular mechanisms underlying the development of a pro-/ and anti-inflammatory immune response as a result of zinc deficiency and zinc supplementation. Additionally, we emphasize the potential of zinc as a preventive and therapeutic agent, alone or in combination with other strategies, that could ameliorate infectious diseases.
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17
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Hirao-Suzuki M. Mechanisms of Cancer Malignancy Elicited by Environmental Chemicals: Analysis Focusing on Cadmium and Bisphenol A. YAKUGAKU ZASSHI 2022; 142:1161-1168. [DOI: 10.1248/yakushi.22-00140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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18
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Migliaccio V, Putti R, Scudiero R. Metallothionein gene expression in rat tissues: response to dietary restriction after orally dichlorodiphenyldichloroethylene (DDE) exposure and high-fat feeding. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2022; 57:859-864. [PMID: 36173099 DOI: 10.1080/03601234.2022.2127594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Dichlorodiphenyldichloroethylene (DDE) is an environmental pollutant that accumulates in adipose tissue through the food chain. Hypercaloric, high-fat diet is considered to promote the accumulation of toxic lipophilic substances in tissues, whereas the loss of body fat through caloric restriction results in a recirculation of these substances. In rats, oral administration of DDE causes the onset of tissues damage; the concomitant intake of a high-fat diet ameliorates tissues status, probably because of the entrapment of the lipophilic substance in fat depots. Recent evidence demonstrates that DDE alters the expression of metallothioneins, proteins involved in cellular defense from oxidative stress, in a diet- and tissue-specific manner. This study is aimed to verify if 2 weeks of caloric restriction after the oral DDE treatment can modify metallothionein gene expression in tissues of high-fat fed rats. Real-time PCR analysis demonstrates that metallothionein gene expression after calorie restriction is tissue-specific and strongly influenced by both previous dietary conditions and DDE exposure. To avoid misleading conclusions on the interference of toxic xenobiotics on metallothionein gene expression is particularly important to consider the tissue, the cellular conditions, and the nutritional status of the animals, especially when the protein is used as an index of cells health.
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Affiliation(s)
- Vincenzo Migliaccio
- Department of Chemistry and Biology "Adolfo Zambelli", University of Salerno, Fisciano (Sa), Italy
| | - Rosalba Putti
- Department of Biology, University Federico II, Napoli, Italy
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19
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ptk2 and mt2a Genes Expression in Gastritis and Gastric Cancer Patients with Helicobacter pylori Infection. Can J Gastroenterol Hepatol 2022; 2022:8699408. [PMID: 36060520 PMCID: PMC9436627 DOI: 10.1155/2022/8699408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 07/15/2022] [Accepted: 07/27/2022] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND ptk2 and mt2a genes contribute to the cell cycle during proliferation and apoptosis, respectively. Designing a case-control study including gastric adenocarcinoma and gastritis patients with and without Helicobacter pylori infection would lead to determinate of the correlations between ptk2 and mt2a genes expression with H. pylori infection in gastric antral epithelial cells. METHODS Overall, 50 and 30 gastric antral biopsy samples of gastric cancer (case group) and gastritis (control group) patients were included into study, respectively. All biopsy samples were collected considering the exclusion criteria including patients with a history of consumption of tobacco, alcohol, and anti-H. pylori drugs. Each patient group is divided into with and without H. pylori infection to detect cDNA fold changes of ptk2 and mt2a genes by using Real Time RT PCR. Furthermore, the presence of H. pylori virulence genes was detected directly by using specific primers and simple PCR on cDNA synthesized from total RNA of gastric antral biopsy samples. RESULTS A negative correlation was revealed between age and clinical manifestations with the ΔCt value of the ptk2 gene (P < 0.05). The H. pylori iceA1/2 and cagE genes revealed positive and negative correlations with the ΔCt value of the ptk2 gene (P < 0.05), respectively. Furthermore, a weak correlation was detectable between H. pylori babA2/B, oipA, and cagY genes and the ΔCt value of the mt2a gene in gastric antral epithelial cells of patients (P < 0.1). CONCLUSIONS The results of the current study opened a view for more investigation on the stunning roles of H. pylori infection in clinical outcomes through mt2a and ptk2 gene expression in gastric antral epithelial cells.
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20
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Metallothionein 2A with Antioxidant and Antitumor Activity Is Upregulated by Caffeic Acid Phenethyl Ester in Human Bladder Carcinoma Cells. Antioxidants (Basel) 2022; 11:antiox11081509. [PMID: 36009228 PMCID: PMC9405133 DOI: 10.3390/antiox11081509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 07/28/2022] [Accepted: 07/29/2022] [Indexed: 11/21/2022] Open
Abstract
Functions of metallothionein 2A (MT2A) in bladder cancer have not been extensively explored even though metallothioneins are regarded as modulators in several biological regulations including oxidation and cancerous development. We evaluated MT2A in bladder carcinoma cells in terms of the mechanisms of regulation and the underlying functions. MT2A overexpression not only downregulated endogenous ROS but also blocked ROS induced by H2O2. We used the annexin V-FITC apoptosis assay to determine the modulation of H2O2-induced cell apoptosis by MT2A expression. Results of immunoblot and reporter assays indicated that caffeic acid phenethyl ester (CAPE) treatment induced MT2A and heme oxygenase-1 (HO-1) expressions; moreover, the involvement of CAPE in either upregulation of the HO-1 expression or downregulation of endogenous ROS is MT2A dependent in bladder carcinoma cells. Knockdown of MT2A increased invasion and cell growth in vitro and in vivo, whereas ectopic overexpression of MT2A had the reverse effect in bladder carcinoma cells. Unlike bladder cancer tissues, the real-time reverse transcriptase-polymerase chain reaction (RT-qPCR) analysis showed a significant level of MT2A mRNA in the normal bladder tissues. Collectively, our results indicated that MT2A is acting as an antioxidant and also a tumor suppressor in human bladder carcinoma cells.
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21
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Olson RM, Gornalusse G, Whitmore LS, Newhouse D, Tisoncik-Go J, Smith E, Ochsenbauer C, Hladik F, Gale M. Innate immune regulation in HIV latency models. Retrovirology 2022; 19:15. [PMID: 35804422 PMCID: PMC9270781 DOI: 10.1186/s12977-022-00599-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Accepted: 05/25/2022] [Indexed: 01/26/2023] Open
Abstract
BACKGROUND Innate immunity and type 1 interferon (IFN) defenses are critical for early control of HIV infection within CD4 + T cells. Despite these defenses, some acutely infected cells silence viral transcription to become latently infected and form the HIV reservoir in vivo. Latently infected cells persist through antiretroviral therapy (ART) and are a major barrier to HIV cure. Here, we evaluated innate immunity and IFN responses in multiple T cell models of HIV latency, including established latent cell lines, Jurkat cells latently infected with a reporter virus, and a primary CD4 + T cell model of virologic suppression. RESULTS We found that while latently infected T cell lines have functional RNA sensing and IFN signaling pathways, they fail to induce specific interferon-stimulated genes (ISGs) in response to innate immune activation or type 1 IFN treatment. Jurkat cells latently infected with a fluorescent reporter HIV similarly demonstrate attenuated responses to type 1 IFN. Using bulk and single-cell RNA sequencing we applied a functional genomics approach and define ISG expression dynamics in latent HIV infection, including HIV-infected ART-suppressed primary CD4 + T cells. CONCLUSIONS Our observations indicate that HIV latency and viral suppression each link with cell-intrinsic defects in specific ISG induction. We identify a set of ISGs for consideration as latency restriction factors whose expression and function could possibly mitigate establishing latent HIV infection.
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Affiliation(s)
- Rebecca M. Olson
- grid.34477.330000000122986657Center for Innate Immunity and Immune Disease, Department of Immunology, University of Washington School of Medicine, Seattle, WA USA
| | - Germán Gornalusse
- grid.270240.30000 0001 2180 1622Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA USA ,grid.34477.330000000122986657Department of Obstetrics & Gynecology, University of Washington, Seattle, WA USA
| | - Leanne S. Whitmore
- grid.34477.330000000122986657Center for Innate Immunity and Immune Disease, Department of Immunology, University of Washington School of Medicine, Seattle, WA USA
| | - Dan Newhouse
- grid.34477.330000000122986657Center for Innate Immunity and Immune Disease, Department of Immunology, University of Washington School of Medicine, Seattle, WA USA
| | - Jennifer Tisoncik-Go
- grid.34477.330000000122986657Center for Innate Immunity and Immune Disease, Department of Immunology, University of Washington School of Medicine, Seattle, WA USA
| | - Elise Smith
- grid.34477.330000000122986657Center for Innate Immunity and Immune Disease, Department of Immunology, University of Washington School of Medicine, Seattle, WA USA
| | - Christina Ochsenbauer
- grid.270240.30000 0001 2180 1622Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA USA
| | - Florian Hladik
- grid.270240.30000 0001 2180 1622Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA USA ,grid.34477.330000000122986657Department of Obstetrics & Gynecology, University of Washington, Seattle, WA USA ,grid.34477.330000000122986657Department of Medicine, University of Washington, Seattle, WA USA
| | - Michael Gale
- grid.34477.330000000122986657Center for Innate Immunity and Immune Disease, Department of Immunology, University of Washington School of Medicine, Seattle, WA USA
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22
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Transcriptomics of angiotensin II-induced long noncoding and coding RNAs in endothelial cells. J Hypertens 2022; 40:1303-1313. [PMID: 35762471 DOI: 10.1097/hjh.0000000000003140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE Angiotensin II (Ang II)-induced endothelial dysfunction plays an important role in the pathogenesis of cardiovascular diseases such as systemic hypertension, cardiac hypertrophy and atherosclerosis. Recently, long noncoding RNAs (lncRNAs) have been shown to play an essential role in the pathobiology of cardiovascular diseases; however, the effect of Ang II on lncRNAs and coding RNAs expression in endothelial cells has not been evaluated. Accordingly, we sought to evaluate the expression profiles of lncRNAs and coding RNAs in endothelial cells following treatment with Ang II. METHODS Human umbilical vein endothelial cells (HUVECs) were cultured and treated with Ang II (10-6 mol/l) for 24 h. The cells were then profiled for the expression of lncRNAs and mRNAs using the Arraystar Human lncRNA Expression Microarray V3.0. RESULTS In HUVECs following Ang II treatment, from a total of 30 584 lncRNA targets screened, 25 targets were significantly upregulated, while 69 were downregulated. In the same HUVECs samples, from 26 106 mRNA targets screened, 28 targets were significantly upregulated and 67 were downregulated. Of the differentially expressed lncRNAs, RP11-354P11.2 and RP11-360F5.1 were the most upregulated (11-fold) and downregulated (three-fold) lncRNAs, respectively. Assigning the differentially regulated genes into functional groups using bioinformatics reveals numerous genes involved in the nucleotide excision repair and ECM-receptor interaction. CONCLUSION This is the first study to profile the Ang II-induced differentially expressed lncRNAs and mRNAs in human endothelial cells. Our results reveal novel targets and substantially extend the list of potential candidate genes involved in Ang II-induced endothelial dysfunction and cardiovascular diseases.
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Huisman C, Norgard MA, Levasseur PR, Krasnow SM, van der Wijst MGP, Olson B, Marks DL. Critical changes in hypothalamic gene networks in response to pancreatic cancer as found by single-cell RNA sequencing. Mol Metab 2022; 58:101441. [PMID: 35031523 PMCID: PMC8851272 DOI: 10.1016/j.molmet.2022.101441] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 01/06/2022] [Accepted: 01/08/2022] [Indexed: 02/05/2023] Open
Abstract
OBJECTIVE Cancer cachexia is a devastating chronic condition characterized by involuntary weight loss, muscle wasting, abnormal fat metabolism, anorexia, and fatigue. However, the molecular mechanisms underlying this syndrome remain poorly understood. In particular, the hypothalamus may play a central role in cachexia, given that it has direct access to peripheral signals because of its anatomical location and attenuated blood-brain barrier. Furthermore, this region has a critical role in regulating appetite and metabolism. METHODS To provide a detailed analysis of the hypothalamic response to cachexia, we performed single-cell RNA-seq combined with RNA-seq of the medial basal hypothalamus (MBH) in a mouse model for pancreatic cancer. RESULTS We found many cell type-specific changes, such as inflamed endothelial cells, stressed oligodendrocyes and both inflammatory and moderating microglia. Lcn2, a newly discovered hunger suppressing hormone, was the highest induced gene. Interestingly, cerebral treatment with LCN2 not only induced many of the observed molecular changes in cachexia but also affected gene expression in food-intake decreasing POMC neurons. In addition, we found that many of the cachexia-induced molecular changes found in the hypothalamus mimic those at the primary tumor site. CONCLUSION Our data reveal that multiple cell types in the MBH are affected by tumor-derived factors or host factors that are induced by tumor growth, leading to a marked change in the microenvironment of neurons critical for behavioral, metabolic, and neuroendocrine outputs dysregulated during cachexia. The mechanistic insights provided in this study explain many of the clinical features of cachexia and will be useful for future therapeutic development.
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Affiliation(s)
- Christian Huisman
- Papé Family Pediatric Research Institute, Oregon Health & Science University, Portland, United States; Knight Cancer Institute, Oregon Health & Science University, Portland, United States.
| | - Mason A Norgard
- Papé Family Pediatric Research Institute, Oregon Health & Science University, Portland, United States
| | - Peter R Levasseur
- Papé Family Pediatric Research Institute, Oregon Health & Science University, Portland, United States
| | - Stephanie M Krasnow
- Papé Family Pediatric Research Institute, Oregon Health & Science University, Portland, United States
| | - Monique G P van der Wijst
- Department of Genetics, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Brennan Olson
- Papé Family Pediatric Research Institute, Oregon Health & Science University, Portland, United States; Medical Scientist Training Program, Oregon Health & Science University, Portland, United States
| | - Daniel L Marks
- Papé Family Pediatric Research Institute, Oregon Health & Science University, Portland, United States; Knight Cancer Institute, Oregon Health & Science University, Portland, United States; Brenden-Colson Center for Pancreatic Care, Oregon Health & Science University, Portland, United States.
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Gold nanoclusters as elemental label for the sequential quantification of apolipoprotein E and metallothionein 2A in individual human cells of the retinal pigment epithelium using single cell-ICP-MS. Anal Chim Acta 2022; 1203:339701. [DOI: 10.1016/j.aca.2022.339701] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 03/01/2022] [Accepted: 03/07/2022] [Indexed: 11/22/2022]
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25
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Differences and Interactions in Placental Manganese and Iron Transfer across an In Vitro Model of Human Villous Trophoblasts. Int J Mol Sci 2022; 23:ijms23063296. [PMID: 35328723 PMCID: PMC8951728 DOI: 10.3390/ijms23063296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 03/03/2022] [Accepted: 03/14/2022] [Indexed: 12/10/2022] Open
Abstract
Manganese (Mn) as well as iron (Fe) are essential trace elements (TE) important for the maintenance of physiological functions including fetal development. However, in the case of Mn, evidence suggests that excess levels of intrauterine Mn are associated with adverse pregnancy outcomes. Although Mn is known to cross the placenta, the fundamentals of Mn transfer kinetics and mechanisms are largely unknown. Moreover, exposure to combinations of TEs should be considered in mechanistic transfer studies, in particular for TEs expected to share similar transfer pathways. Here, we performed a mechanistic in vitro study on the placental transfer of Mn across a BeWo b30 trophoblast layer. Our data revealed distinct differences in the placental transfer of Mn and Fe. While placental permeability to Fe showed a clear inverse dose-dependency, Mn transfer was largely independent of the applied doses. Concurrent exposure of Mn and Fe revealed transfer interactions of Fe and Mn, indicating that they share common transfer mechanisms. In general, mRNA and protein expression of discussed transporters like DMT1, TfR, or FPN were only marginally altered in BeWo cells despite the different exposure scenarios highlighting that Mn transfer across the trophoblast layer likely involves a combination of active and passive transport processes.
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Daruich A, Picard E, Guégan J, Jaworski T, Parenti L, Delaunay K, Naud MC, Berdugo M, Boatright JH, Behar-Cohen F. Comparative Analysis of Urso- and Tauroursodeoxycholic Acid Neuroprotective Effects on Retinal Degeneration Models. Pharmaceuticals (Basel) 2022; 15:334. [PMID: 35337132 PMCID: PMC8955596 DOI: 10.3390/ph15030334] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 02/24/2022] [Accepted: 03/01/2022] [Indexed: 02/01/2023] Open
Abstract
Ursodeoxycholic (UDCA) and tauroursodeoxycholic (TUDCA) acids have shown neuroprotective properties in neurodegenerative diseases, but differential effects of the two bile acids have been poorly explored. The aim of this study was to evaluate the neuroprotective effects of UDCA versus TUDCA in a neuroretinal degeneration model and to compare transcriptionally regulated pathways. The WERI-Rb-1 human cone-like cell line and retinal explants were exposed to albumin and TUDCA or UDCA. Viability, cell death, and microglial activation were quantified. Transcriptionally regulated pathways were analyzed after RNA sequencing using the edgeR bioconductor package. Pre-treatment of cone-like cells with UDCA or TUDCA significantly protected cells from albumin toxicity. On retinal explants, either bile acid reduced apoptosis, necroptosis, and microglia activation at 6 h. TUDCA induced the regulation of 463 genes, whilst 31 genes were regulated by UDCA. Only nineteen common genes were regulated by both bile acids, mainly involved in iron control, cell death, oxidative stress, and cell metabolism. As compared to UDCA, TUDCA up-regulated genes involved in endoplasmic reticulum stress pathways and down-regulated genes involved in axonal and neuronal development. Either bile acid protected against albumin-induced cell loss. However, TUDCA regulated substantially more neuroprotective genes than UDCA.
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Affiliation(s)
- Alejandra Daruich
- From Physiopathology of Ocular Diseases to Clinical Development, Centre de Recherche des Cordeliers, Sorbonne University, Paris University, Inserm, F-75006 Paris, France; (E.P.); (T.J.); (L.P.); (K.D.); (M.-C.N.); (M.B.); (F.B.-C.)
- Ophthalmology Department, Necker-Enfants Malades University Hospital, Assistance Publique Hôpitaux de Paris, Paris University, F-75015 Paris, France
| | - Emilie Picard
- From Physiopathology of Ocular Diseases to Clinical Development, Centre de Recherche des Cordeliers, Sorbonne University, Paris University, Inserm, F-75006 Paris, France; (E.P.); (T.J.); (L.P.); (K.D.); (M.-C.N.); (M.B.); (F.B.-C.)
| | - Justine Guégan
- Institut du Cerveau (ICM), INSERM, CNRS, AP-HP, Sorbonne University, Pitié-Salpêtrière University Hospital, F-75013 Paris, France;
| | - Thara Jaworski
- From Physiopathology of Ocular Diseases to Clinical Development, Centre de Recherche des Cordeliers, Sorbonne University, Paris University, Inserm, F-75006 Paris, France; (E.P.); (T.J.); (L.P.); (K.D.); (M.-C.N.); (M.B.); (F.B.-C.)
| | - Léa Parenti
- From Physiopathology of Ocular Diseases to Clinical Development, Centre de Recherche des Cordeliers, Sorbonne University, Paris University, Inserm, F-75006 Paris, France; (E.P.); (T.J.); (L.P.); (K.D.); (M.-C.N.); (M.B.); (F.B.-C.)
| | - Kimberley Delaunay
- From Physiopathology of Ocular Diseases to Clinical Development, Centre de Recherche des Cordeliers, Sorbonne University, Paris University, Inserm, F-75006 Paris, France; (E.P.); (T.J.); (L.P.); (K.D.); (M.-C.N.); (M.B.); (F.B.-C.)
| | - Marie-Christine Naud
- From Physiopathology of Ocular Diseases to Clinical Development, Centre de Recherche des Cordeliers, Sorbonne University, Paris University, Inserm, F-75006 Paris, France; (E.P.); (T.J.); (L.P.); (K.D.); (M.-C.N.); (M.B.); (F.B.-C.)
| | - Marianne Berdugo
- From Physiopathology of Ocular Diseases to Clinical Development, Centre de Recherche des Cordeliers, Sorbonne University, Paris University, Inserm, F-75006 Paris, France; (E.P.); (T.J.); (L.P.); (K.D.); (M.-C.N.); (M.B.); (F.B.-C.)
| | - Jeffrey H. Boatright
- Department of Ophthalmology, Emory University School of Medicine, Atlanta, GA 30322, USA;
- Center of Excellence, Atlanta Veterans Administration Medical Center, Decatur, GA 30033, USA
| | - Francine Behar-Cohen
- From Physiopathology of Ocular Diseases to Clinical Development, Centre de Recherche des Cordeliers, Sorbonne University, Paris University, Inserm, F-75006 Paris, France; (E.P.); (T.J.); (L.P.); (K.D.); (M.-C.N.); (M.B.); (F.B.-C.)
- Ophtalmopole, Cochin Hospital, Assistance Publique Hôpitaux de Paris, Paris University, F-75015 Paris, France
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Li N, Li C, Li D, Dang LH, Ren K, Du QX, Cao J, Jin QQ, Wang YY, Bai RF, Sun JH. Identifying biomarkers for evaluating wound extent and age in the contused muscle of rats using microarray analysis: a pilot study. PeerJ 2022; 9:e12709. [PMID: 35036173 PMCID: PMC8710249 DOI: 10.7717/peerj.12709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 12/08/2021] [Indexed: 11/20/2022] Open
Abstract
Wound age estimation is still one of the most important and significant challenges in forensic practice. The extent of wound damage greatly affects the accuracy and reliability of wound age estimation, so it is important to find effective biomarkers to help diagnose wound degree and wound age. In the present study, the gene expression profiles of both mild and severe injuries in 33 rats were assayed at 0, 1, 3, 24, 48, and 168 hours using the Affymetrix microarray system to provide biomarkers for the evaluation of wound age and the extent of the wound. After obtaining thousands of differentially expressed genes, a principal component analysis, the least absolute shrinkage and selection operator, and a time-series analysis were used to select the most predictive prognostic genes. Finally, 15 genes were screened for evaluating the extent of wound damage, and the top 60 genes were also screened for wound age estimation in mild and severe injury. Selected indicators showed good diagnostic performance for identifying the extent of the wound and wound age in a Fisher discriminant analysis. A function analysis showed that the candidate genes were mainly related to cell proliferation and the inflammatory response, primarily IL-17 and the Hematopoietic cell lineage signalling pathway. The results revealed that these genes play an essential role in wound-healing and yield helpful and valuable potential biomarkers for further targeted studies.
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Affiliation(s)
- Na Li
- School of Forensic Medicine, Shanxi Medical University, Jinzhong, China
| | - Chun Li
- School of Forensic Medicine, Shanxi Medical University, Jinzhong, China
| | - Dan Li
- School of Forensic Medicine, Shanxi Medical University, Jinzhong, China
| | - Li-Hong Dang
- School of Forensic Medicine, Shanxi Medical University, Jinzhong, China
| | - Kang Ren
- School of Forensic Medicine, Shanxi Medical University, Jinzhong, China
| | - Qiu-Xiang Du
- School of Forensic Medicine, Shanxi Medical University, Jinzhong, China
| | - Jie Cao
- School of Forensic Medicine, Shanxi Medical University, Jinzhong, China
| | - Qian-Qian Jin
- School of Forensic Medicine, Shanxi Medical University, Jinzhong, China
| | - Ying-Yuan Wang
- School of Forensic Medicine, Shanxi Medical University, Jinzhong, China
| | - Ru-Feng Bai
- Key Laboratory of Evidence Science, China University of Political Science and Law, Beijing, China
| | - Jun-Hong Sun
- School of Forensic Medicine, Shanxi Medical University, Jinzhong, China
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28
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Ripszky Totan A, Greabu M, Stanescu-Spinu II, Imre M, Spinu TC, Miricescu D, Ilinca R, Coculescu EC, Badoiu SC, Coculescu BI, Albu C. The Yin and Yang dualistic features of autophagy in thermal burn wound healing. Int J Immunopathol Pharmacol 2022; 36:3946320221125090. [PMID: 36121435 PMCID: PMC9490459 DOI: 10.1177/03946320221125090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/09/2022] Open
Abstract
Burn healing should be regarded as a dynamic process consisting of two main, interrelated phases: (a) the inflammatory phase when neutrophils and monocytes infiltrate the injury site, through localized vasodilation and fluid extravasation, and (b) the proliferative-remodeling phase, which represents a key event in wound healing. In the skin, both canonical autophagy (induced by starvation, oxidative stress, and environmental aggressions) and non-canonical or selective autophagy have evolved to play a discrete, but, essential, “housekeeping” role, for homeostasis, immune tolerance, and survival. Experimental data supporting the pro-survival roles of autophagy, highlighting its Yang, luminous and positive feature of this complex but insufficient explored molecular pathway, have been reported. Autophagic cell death describes an “excessive” degradation of important cellular components that are necessary for normal cell function. This deadly molecular mechanism brings to light the darker, concealed, Yin feature of autophagy. Autophagy seems to perform dual, conflicting roles in the angiogenesis context, revealing once again, its Yin–Yang features. Autophagy with its Yin–Yang features remains the shadow player, able to decide quietly whether the cell survives or dies.
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Affiliation(s)
- Alexandra Ripszky Totan
- Department of Biochemistry, 367124Carol Davila University of Medicine and Pharmacy, Faculty of Dental Medicine, Romania
| | - Maria Greabu
- Department of Biochemistry, 367124Carol Davila University of Medicine and Pharmacy, Faculty of Dental Medicine, Romania
| | - Iulia-Ioana Stanescu-Spinu
- Department of Biochemistry, 367124Carol Davila University of Medicine and Pharmacy, Faculty of Dental Medicine, Romania
| | - Marina Imre
- Department of Complete Denture, Carol Davila University of Medicine and Pharmacy, Faculty of Dental Medicine, Romania
| | - Tudor-Claudiu Spinu
- Department of Fixed Prosthodontics and Occlusology, Carol Davila University of Medicine and Pharmacy, Faculty of Dental Medicine, Romania
| | - Daniela Miricescu
- Department of Biochemistry, 367124Carol Davila University of Medicine and Pharmacy, Faculty of Dental Medicine, Romania
| | - Radu Ilinca
- Department of Biophysics, Carol Davila University of Medicine and Pharmacy, Faculty of Dental Medicine, Romania
| | - Elena Claudia Coculescu
- Department of Oral Pathology, Carol Davila University of Medicine and Pharmacy, Faculty of Dental Medicine, Romania
| | - Silviu Constantin Badoiu
- Department of Anatomy and Embryology, Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
| | - Bogdan-Ioan Coculescu
- Cantacuzino National Medico-Military Institute for Research and Development, Bucharest, Romania
| | - Crenguta Albu
- Department of Genetics, Carol Davila University of Medicine and Pharmacy, Faculty of Dental Medicine, Bucharest, Romania
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Panebianco CJ, Dave A, Charytonowicz D, Sebra R, Iatridis JC. Single-cell RNA-sequencing atlas of bovine caudal intervertebral discs: Discovery of heterogeneous cell populations with distinct roles in homeostasis. FASEB J 2021; 35:e21919. [PMID: 34591994 DOI: 10.1096/fj.202101149r] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 08/19/2021] [Accepted: 08/31/2021] [Indexed: 12/25/2022]
Abstract
Back and neck pain are significant healthcare burdens that are commonly associated with pathologies of the intervertebral disc (IVD). The poor understanding of the cellular heterogeneity within the IVD makes it difficult to develop regenerative IVD therapies. To address this gap, we developed an atlas of bovine (Bos taurus) caudal IVDs using single-cell RNA-sequencing (scRNA-seq). Unsupervised clustering resolved 15 unique clusters, which we grouped into the following annotated partitions: nucleus pulposus (NP), outer annulus fibrosus (oAF), inner AF (iAF), notochord, muscle, endothelial, and immune cells. Analyzing the pooled gene expression profiles of the NP, oAF, and iAF partitions allowed us to identify novel markers for NP (CP, S100B, H2AC18, SNORC, CRELD2, PDIA4, DNAJC3, CHCHD7, and RCN2), oAF (IGFBP6, CTSK, LGALS1, and CCN3), and iAF (MGP, COMP, SPP1, GSN, SOD2, DCN, FN1, TIMP3, WDR73, and GAL) cells. Network analysis on subpopulations of NP and oAF cells determined that clusters NP1, NP2, NP4, and oAF1 displayed gene expression profiles consistent with cell survival, suggesting these clusters may uniquely support viability under the physiological stresses of the IVD. Clusters NP3, NP5, oAF2, and oAF3 expressed various extracellular matrix (ECM)-associated genes, suggesting their role in maintaining IVD structure. Lastly, transcriptional entropy and pseudotime analyses found that clusters NP3 and NP1 had the most stem-like gene expression signatures of the NP partition, implying these clusters may contain IVD progenitor cells. Overall, results highlight cell type diversity within the IVD, and these novel cell phenotypes may enhance our understanding of IVD development, homeostasis, degeneration, and regeneration.
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Affiliation(s)
- Christopher J Panebianco
- Leni and Peter W. May Department of Orthopaedics, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Arpit Dave
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Daniel Charytonowicz
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Robert Sebra
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, New York, USA.,Icahn Institute for Data Science and Genomics Technology, Icahn School of Medicine at Mount Sinai, New York, New York, USA.,Black Family Stem Cell Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA.,Sema4, a Mount Sinai venture, Stamford, Connecticut, USA
| | - James C Iatridis
- Leni and Peter W. May Department of Orthopaedics, Icahn School of Medicine at Mount Sinai, New York, New York, USA
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Zhang J, Shi Z, Gao Z, Wen Y, Wang W, Liu W, Wang X, Zhu F. Identification of three metallothioneins in the black soldier fly and their functions in Cd accumulation and detoxification. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 286:117146. [PMID: 34438505 DOI: 10.1016/j.envpol.2021.117146] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 03/30/2021] [Accepted: 04/11/2021] [Indexed: 06/13/2023]
Abstract
The black soldier fly (BSF) Hermetia illucens has a strong tolerance to cadmium stress. This helps to use BSF in entomoremediation of heavy metal pollution. Rich metallothionein (MT) proteins were thought to be important for some insects to endure the toxicity of heavy metal. We identified and characterized three MTs genes in BSF (BSFMTs), including BSFMT1, BSFMT2A, and BSFMT2B. Molecular modeling was used to predict metal binding sites. Phylogenetic analysis was used to identify gene families. Overexpression of the recombinant black soldier fly metallothioneins was found to confer Cd tolerance in Escherichia coli. Finally, functions of BSFMTs in BSF were explored through RNA interference (RNAi). RNAi results of BSFMT2B showed that the larval fresh weight decreased significantly, and the larvae mortality increased significantly. This study suggests that BSFMTs have important properties in Cd detoxification and tolerance in BSF. Further characterization analyses of physiological function about metallothioneins are necessary in BSF and other insects.
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Affiliation(s)
- Jie Zhang
- Hubei International Scientific and Technological Cooperation Base of Waste Conversion By Insects, Huazhong Agricultural University, Wuhan, 430070, China; Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, Huazhong Agricultural University, Wuhan, 430070, China.
| | - Zhihui Shi
- Hubei International Scientific and Technological Cooperation Base of Waste Conversion By Insects, Huazhong Agricultural University, Wuhan, 430070, China.
| | - Zhenghui Gao
- Hubei International Scientific and Technological Cooperation Base of Waste Conversion By Insects, Huazhong Agricultural University, Wuhan, 430070, China.
| | - Yiting Wen
- Hubei International Scientific and Technological Cooperation Base of Waste Conversion By Insects, Huazhong Agricultural University, Wuhan, 430070, China.
| | - Wanqiang Wang
- Hubei International Scientific and Technological Cooperation Base of Waste Conversion By Insects, Huazhong Agricultural University, Wuhan, 430070, China.
| | - Wen Liu
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, Huazhong Agricultural University, Wuhan, 430070, China.
| | - Xiaoping Wang
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, Huazhong Agricultural University, Wuhan, 430070, China.
| | - Fen Zhu
- Hubei International Scientific and Technological Cooperation Base of Waste Conversion By Insects, Huazhong Agricultural University, Wuhan, 430070, China; Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, Huazhong Agricultural University, Wuhan, 430070, China.
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Lu H, Zhao H, Wang Y, Guo M, Mu M, Liu Y, Nie X, Huang P, Xing M. Arsenic (III) induces oxidative stress and inflammation in the gills of common carp, which is ameliorated by zinc (II). J Inorg Biochem 2021; 225:111617. [PMID: 34571403 DOI: 10.1016/j.jinorgbio.2021.111617] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 09/09/2021] [Accepted: 09/16/2021] [Indexed: 12/13/2022]
Abstract
Arsenic (As) is widely present in the environment in form of arsenite (AsIII) and arsenate (AsV). Oxidative stress and inflammation are believed to be the dominant mechanisms of AsIII toxicity in vivo and in vitro. The aim of this study was to investigate whether zinc (Zn2+) alleviates exogenous gill toxicity in carp induced by AsIII and to gain insight into the underlying mechanisms. Exposure of carp to 2.83 mg As2O3/L for 30 days reduced superoxide dismutase activity by 4.0%, catalase by 41.0% and glutathione by 19.8%, while the concentration of malondialdehyde was increased by 16.4% compared to the control group, indicating oxidative stress. After the exposure of carp to AsIII the expression of inflammatory markers, such as interleukin-6, interleukin-8, tumor necrosis factor α and inducible nitric oxide synthase in gill tissue were significantly increased. In addition, the phosphorylation of nuclear factor kappa-B (NF-κB) was increased by 225%. 1 mg ZnCl2/L can relieve the toxicity of AsIII based on histopathology, antioxidase activity, qRT-PCR and western results. Zn2+ attenuated AsIII-induced gill toxicity that suppressed intracellular oxidative stress and NF-κB pathway by an upregulation of metallothionein. Therefore, the toxic effect of AsIII on the gill cells of carp was reduced. This study provides a theoretical basis for exploring the alleviation of the toxic effects of metalloids on organisms by heavy metals and the biological assessment of the effects.
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Affiliation(s)
- Hongmin Lu
- College of wildlife and protected area, Northeast Forestry University, Harbin 150040, Heilongjiang, PR China
| | - Hongjing Zhao
- College of wildlife and protected area, Northeast Forestry University, Harbin 150040, Heilongjiang, PR China
| | - Yu Wang
- College of wildlife and protected area, Northeast Forestry University, Harbin 150040, Heilongjiang, PR China
| | - Menghao Guo
- College of wildlife and protected area, Northeast Forestry University, Harbin 150040, Heilongjiang, PR China
| | - Mengyao Mu
- College of wildlife and protected area, Northeast Forestry University, Harbin 150040, Heilongjiang, PR China
| | - Yachen Liu
- College of wildlife and protected area, Northeast Forestry University, Harbin 150040, Heilongjiang, PR China
| | - Xiaopan Nie
- College of wildlife and protected area, Northeast Forestry University, Harbin 150040, Heilongjiang, PR China
| | - Puyi Huang
- College of wildlife and protected area, Northeast Forestry University, Harbin 150040, Heilongjiang, PR China.
| | - Mingwei Xing
- College of wildlife and protected area, Northeast Forestry University, Harbin 150040, Heilongjiang, PR China.
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Cheng M, Yuan H, Wang R, Zou J, Liang T, Yang F, Li S. Genome-Wide Identification and Analysis of the Metallothionein Genes in Oryza Genus. Int J Mol Sci 2021; 22:ijms22179651. [PMID: 34502554 PMCID: PMC8431808 DOI: 10.3390/ijms22179651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 09/03/2021] [Accepted: 09/04/2021] [Indexed: 11/22/2022] Open
Abstract
Metallothionein (MT) proteins are low molecular mass, cysteine-rich, and metal-binding proteins that play an important role in maintaining metal homeostasis and stress response. However, the evolutionary relationships and functional differentiation of MT in the Oryza genus remain unclear. Here we identified 53 MT genes from six Oryza genera, including O. sativa ssp. japonica, O. rufipogon, O. sativa ssp. indica, O. nivara, O. glumaepatula, and O. barthii. The MT genes were clustered into four groups based on phylogenetic analysis. MT genes are unevenly distributed on chromosomes; almost half of the MT genes were clustered on chromosome 12, which may result from a fragment duplication containing the MT genes on chromosome 12. Five pairs of segmental duplication events and ten pairs of tandem duplication events were found in the rice MT family. The Ka/Ks values of the fifteen duplicated MT genes indicated that the duplicated MT genes were under a strong negative selection during evolution. Next, combining the promoter activity assay with gene expression analysis revealed different expression patterns of MT genes. In addition, the expression of OsMT genes was induced under different stresses, including NaCl, CdCl2, ABA, and MeJ treatments. Additionally, we found that OsMT genes were mainly located in chloroplasts. These results imply that OsMT genes play different roles in response to these stresses. All results provide important insights into the evolution of the MT gene family in the Oryza genus, and will be helpful to further study the function of MT genes.
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Lu YJ, Wu YJ, Chen LJ, Ko BS, Chang TC, Wu YJ, Liang SM, Jan YJ, Liou JY. Reduced Expression of Metallothionein-I/II in Renal Proximal Tubules Is Associated with Advanced Chronic Kidney Disease. Toxins (Basel) 2021; 13:toxins13080568. [PMID: 34437439 PMCID: PMC8402552 DOI: 10.3390/toxins13080568] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 08/02/2021] [Accepted: 08/12/2021] [Indexed: 12/19/2022] Open
Abstract
Chronic kidney disease (CKD) is a commonly occurring complex renal syndrome that causes overall mortality in many diseases. The clinical manifestations of CKD include renal tubulointerstitial fibrosis and loss of renal function. Metallothionein-I/II (MT-I/II) is potentially expressed in the liver and kidney, and possesses antioxidant and metal detoxification properties. However, whether MT-I/II expression is associated with the prognosis of nephropathy remains unknown. In this study, we investigated the MT-I/II level in human CKD, using immunohistochemistry. MT-I/II is located on the proximal tubules and is notably reduced in patients with CKD. MT-I/II expression was significantly correlated with the functional and histological grades of CKD. In an aristolochic acid (AAI)-induced nephropathy mouse model, MT-I/II was abundantly increased after AAI injection for 7 days, but decreased subsequently compared to that induced in the acute phase when injected with AAI for 28 days. Furthermore, we found that ammonium pyrrolidinedithiocarbamate (PDTC) restored AAI-induced MT-I/II reduction in HK2 cells. The injection of PDTC ameliorated AAI-induced renal tubulointerstitial fibrosis and reduced the concentrations of blood urea nitrogen and creatinine in mouse sera. Taken together, our results indicate that MT-I/II reduction is associated with advanced CKD, and the retention of renal MT-I/II is a potential therapeutic strategy for CKD.
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Affiliation(s)
- Yi-Jhu Lu
- Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan 350, Taiwan; (Y.-J.L.); (T.-C.C.); (Y.-J.W.); (S.-M.L.)
| | - Ya-Ju Wu
- Department of Pathology, Chi Mei Medical Center, Liouying, Tainan 736, Taiwan;
| | - Lu-Jen Chen
- Department of Pathology and Laboratory Medicine, Taichung Veterans General Hospital, Taichung 407, Taiwan; (L.C.-J.); (Y.-J.J.)
| | - Bor-Sheng Ko
- Department of Hematological Oncology, National Taiwan University Cancer Center, Taipei 106, Taiwan;
- Department of Internal Medicine, National Taiwan University Hospital, Taipei 100, Taiwan
| | - Tzu-Ching Chang
- Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan 350, Taiwan; (Y.-J.L.); (T.-C.C.); (Y.-J.W.); (S.-M.L.)
| | - Yi-Ju Wu
- Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan 350, Taiwan; (Y.-J.L.); (T.-C.C.); (Y.-J.W.); (S.-M.L.)
| | - Shu-Man Liang
- Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan 350, Taiwan; (Y.-J.L.); (T.-C.C.); (Y.-J.W.); (S.-M.L.)
| | - Yee-Jee Jan
- Department of Pathology and Laboratory Medicine, Taichung Veterans General Hospital, Taichung 407, Taiwan; (L.C.-J.); (Y.-J.J.)
| | - Jun-Yang Liou
- Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan 350, Taiwan; (Y.-J.L.); (T.-C.C.); (Y.-J.W.); (S.-M.L.)
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung 404, Taiwan
- Correspondence: ; Tel.: +886-37-246166 (ext. 38309)
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Li H, Li QQ, Hong Y. Global gene expression signatures in response to citrate-coated silver nanoparticles exposure. Toxicology 2021; 461:152898. [PMID: 34403730 DOI: 10.1016/j.tox.2021.152898] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Revised: 08/04/2021] [Accepted: 08/12/2021] [Indexed: 10/20/2022]
Abstract
Silver nanoparticles (AgNPs) are widely used in medical and commercial products for their unique antibacterial functions. However, the impact of AgNPs on human neural development is not well understood. To investigate the effect of AgNPs on human neural development, various doses of 20 nm citrate-coated AgNP (AgSC) were administered to human embryonic stem cell derived neural progenitors during the neuronal differentiation. Immunofluorescence staining with neuronal progenitor markers SOX2 (sex determining region Y-box 2) and Nestin (VI intermediate filament protein) showed that AgSC inhibited rosette formation, neuronal progenitor proliferation, and neurite outgrowth. Furthermore, AgSC promoted astrocyte activation and neuronal apoptosis. These adverse effects can be partially recovered with ascorbic acid. A genome-wide transcriptome analysis of both AgSC treated and untreated samples indicated that the most up-graduated genes were a group of Metallothionein (1F, 1E, 2A) proteins, a metal-binding protein that plays an essential role in metal homeostasis, heavy metal detoxification, and cellular anti-oxidative defence. The most significantly down-regulated genes were neuronal differentiation 6 (NEUROD6) and fork head box G1 (FOXG1). GO analyse indicated that the regulation of cholesterol biosynthetic process, neuron differentiation, synapse organization and pattern specification, oliogenesis, and neuronal apoptosis were the most impacted biological processes. KEGG pathway analyse showed that the most significantly impacted pathways were C5 isoprenoid, axon guidance, Notch, WNT, RAS-MAPK signalling pathways, lysosome, and apoptosis. Our data suggests that AgSCs interfered with metal homeostasis and cholesterol biosynthesis which induced oxidative stress, inhibited neurogenesis, axon guidance, and promoted apoptosis. Supplementation with ascorbic acid could act as an antioxidant to prevent AgSC-mediated neurotoxicity.
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Affiliation(s)
- Hao Li
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystem, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian, 361102, China; Graduate College of Biomedical Sciences, Western University of Health Sciences, Pomona, CA, 91766-1854, USA
| | - Qingshun Q Li
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystem, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian, 361102, China; Graduate College of Biomedical Sciences, Western University of Health Sciences, Pomona, CA, 91766-1854, USA.
| | - Yiling Hong
- College of Veterinary Medicine, Western University of Health Sciences, Pomona, CA, 91766-1854, USA.
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Huang S, Wang J, Men H, Tan Y, Lin Q, Gozal E, Zheng Y, Cai L. Cardiac metallothionein overexpression rescues diabetic cardiomyopathy in Akt2-knockout mice. J Cell Mol Med 2021; 25:6828-6840. [PMID: 34053181 PMCID: PMC8278119 DOI: 10.1111/jcmm.16687] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 05/04/2021] [Accepted: 05/13/2021] [Indexed: 02/06/2023] Open
Abstract
To efficiently prevent diabetic cardiomyopathy (DCM), we have explored and confirmed that metallothionein (MT) prevents DCM by attenuating oxidative stress, and increasing expression of proteins associated with glucose metabolism. To determine whether Akt2 expression is critical to MT prevention of DCM, mice with either global Akt2 gene deletion (Akt2-KO), or cardiomyocyte-specific overexpressing MT gene (MT-TG) or both combined (MT-TG/Akt2-KO) were used. Akt2-KO mice exhibited symptoms of DCM (cardiac remodelling and dysfunction), and reduced expression of glycogen and glucose metabolism-related proteins, despite an increase in total Akt (t-Akt) phosphorylation. Cardiac MT overexpression in MT-TG/Akt2-KO mice prevented DCM and restored glucose metabolism-related proteins expression and baseline t-Akt phosphorylation. Furthermore, phosphorylation of ERK1/2 increased in the heart of MT-TG/Akt2-KO mice, compared with Akt2-KO mice. As ERK1/2 has been implicated in the regulation of glucose transport and metabolism this increase could potentially underlie MT protective effect in MT-TG/Akt2-KO mice. Therefore, these results show that although our previous work has shown that MT preserving Akt2 activity is sufficient to prevent DCM, in the absence of Akt2 MT may stimulate alternative or downstream pathways protecting from DCM in a type 2 model of diabetes, and that this protection may be associated with the ERK activation pathway.
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Affiliation(s)
- Shan Huang
- Department of PediatricsPediatric Research InstituteUniversity of Louisville School of MedicineLouisvilleKYUSA
- Department of Cardiovascular DiseaseThe First Hospital of Jilin UniversityChangchunChina
| | - Jiqun Wang
- Department of PediatricsPediatric Research InstituteUniversity of Louisville School of MedicineLouisvilleKYUSA
- Department of Cardiovascular DiseaseThe First Hospital of Jilin UniversityChangchunChina
| | - Hongbo Men
- Department of PediatricsPediatric Research InstituteUniversity of Louisville School of MedicineLouisvilleKYUSA
- Department of Cardiovascular DiseaseThe First Hospital of Jilin UniversityChangchunChina
| | - Yi Tan
- Department of PediatricsPediatric Research InstituteUniversity of Louisville School of MedicineLouisvilleKYUSA
- Department of Pharmacology and ToxicologyUniversity of LouisvilleLouisvilleKYUSA
| | - Qian Lin
- Department of PediatricsPediatric Research InstituteUniversity of Louisville School of MedicineLouisvilleKYUSA
| | - Evelyne Gozal
- Department of PediatricsPediatric Research InstituteUniversity of Louisville School of MedicineLouisvilleKYUSA
- Department of Pharmacology and ToxicologyUniversity of LouisvilleLouisvilleKYUSA
| | - Yang Zheng
- Department of Cardiovascular DiseaseThe First Hospital of Jilin UniversityChangchunChina
| | - Lu Cai
- Department of PediatricsPediatric Research InstituteUniversity of Louisville School of MedicineLouisvilleKYUSA
- Department of Pharmacology and ToxicologyUniversity of LouisvilleLouisvilleKYUSA
- Department of Radiation OncologyUniversity of Louisville School of MedicineLouisvilleKYUSA
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Gao Y, Hong J, Guo Y, Chen M, Chang AK, Xie L, Ying X. Assessment spermatogenic cell apoptosis and the transcript levels of metallothionein and p53 in Meretrix meretrix induced by cadmium. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 217:112230. [PMID: 33864984 DOI: 10.1016/j.ecoenv.2021.112230] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 03/31/2021] [Accepted: 04/02/2021] [Indexed: 06/12/2023]
Abstract
Cadmium (Cd) has been widely used in industry and can accumulate in the water, soil, and food. Meretrix meretrix is one of the marine shellfishes cultivated for economic purpose in China. The increasing Cd levels in coastal marine water could adversely affect the economic benefits of shellfish cultivation. In the present study, M. meretrix were exposed to different Cd2+ concentrations (0, 1.5, 3, 6, and 12 mg L-1) for 5 d to evaluate the effects of Cd on spermatogenic cell. The Cd accumulation, survival rate and the indices of oxidative stress and apoptosis were determined in the spermatogenic cells of M. meretrix. The expression levels of p53 and metallothionein (MT) mRNA were also measured in the spermatogenic cells. Cd accumulation and the mortality rate of spermatogenic cells were found to increase in a dose-response manner with Cd2+ concentrations. Histopathology changes, especially the damage of membranous structure, were more severe as the Cd2+ levels in the testis became higher. The indexes of oxidative stress, including reactive oxygen species, malondialdehyde, protein carbonyl derivates and DNA-protein crosslinks all increased after exposure to Cd2+. However, the total antioxidant capacity gradually decreased with the increasing Cd2+ concentration. In addition, exposure to Cd2+ increased the apoptotic rate and caspase-3 and 9 activities but decreased the level of mitochondrial membrane potential and cytochrome C oxidase in the spermatogenic cells. MT mRNA expression increased in lower Cd2+ concentration treated groups whereas decreased in higher groups, while the p53 mRNA expression increased in a dose-response manner with Cd2+ and was positively correlated with the oxidative damage indices. These results indicated that Cd2+ caused oxidative stress and p53 induced apoptosis in the spermatogenic cells, and thus decreased the survival rate of sperm cells. This finding highlights that Cd can reduce the reproductive capacity of M. meretrix, thus threatening to wild shellfish populations and reducing the efficiency of shellfish farming.
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Affiliation(s)
- Yilu Gao
- College of Life and Environmental Science, Wenzhou University, 325035 Wenzhou, China
| | - Jiameng Hong
- College of Life and Environmental Science, Wenzhou University, 325035 Wenzhou, China
| | - Yuke Guo
- College of Life and Environmental Science, Wenzhou University, 325035 Wenzhou, China
| | - Mengxu Chen
- College of Life and Environmental Science, Wenzhou University, 325035 Wenzhou, China
| | - Alan K Chang
- College of Life and Environmental Science, Wenzhou University, 325035 Wenzhou, China
| | - Lei Xie
- College of Life and Environmental Science, Wenzhou University, 325035 Wenzhou, China.
| | - Xueping Ying
- College of Life and Environmental Science, Wenzhou University, 325035 Wenzhou, China.
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Liu Y, Yang C, Sun L, Wang A, Lan X, Xu W, Liang Y, Ma S, Xia Q. In-depth transcriptome unveils the cadmium toxicology and a novel metallothionein in silkworm. CHEMOSPHERE 2021; 273:128522. [PMID: 33066968 DOI: 10.1016/j.chemosphere.2020.128522] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 09/30/2020] [Accepted: 10/01/2020] [Indexed: 06/11/2023]
Abstract
Heavy metal pollution has gradually become a major global issue. It is so far reaching in part because heavy metals are absorbed by soil and affect almost all species via ecological cycles. Silkworms (Bombyx mori) are poisoned by heavy metals through a soil-mulberry-silkworm system, which inhibits larval growth and development and leads to a decrease in silk production. In the present study, we performed transcriptome sequencing of larval midgut with cadmium exposure to explore the toxicological mechanism of heavy metal, and found that the following potential pathways may be involved in cadmium infiltration: endocytosis, oxidative phosphorylation, and MAPK signaling. Moreover, we identified a novel metallothionein in silkworm, which is inhibited by cadmium exposure and able to improve heavy metal tolerance in B. mori cell lines and Escherichia coli. We also generated a transgenic silkworm strain overexpressing metallothionein and the result showed that metallothionein observably enhanced larval viability under cadmium exposure. This study used RNA sequencing to reveal a mechanism for cadmium toxicology, and identified and functionally verified BmMT, offering a new potential heavy metal-tolerant silkworm variety.
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Affiliation(s)
- Yue Liu
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, 400716, China; Biological Science Research Center, Southwest University, Chongqing, 400716, China; Chongqing Key Laboratory of Sericulture, Southwest University, Chongqing, 400716, China
| | - Chengfei Yang
- Department of Urology, The Second Affiliated Hospital, Army Medical University, Chongqing, 400037, China
| | - Le Sun
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, 400716, China; Biological Science Research Center, Southwest University, Chongqing, 400716, China; Chongqing Key Laboratory of Sericulture, Southwest University, Chongqing, 400716, China
| | - Aoming Wang
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, 400716, China; Biological Science Research Center, Southwest University, Chongqing, 400716, China; Chongqing Key Laboratory of Sericulture, Southwest University, Chongqing, 400716, China
| | - Xinhui Lan
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, 400716, China; Biological Science Research Center, Southwest University, Chongqing, 400716, China; Chongqing Key Laboratory of Sericulture, Southwest University, Chongqing, 400716, China
| | - Wei Xu
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, 400716, China; Biological Science Research Center, Southwest University, Chongqing, 400716, China; Chongqing Key Laboratory of Sericulture, Southwest University, Chongqing, 400716, China
| | - Yan Liang
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, 400716, China; Biological Science Research Center, Southwest University, Chongqing, 400716, China; Chongqing Key Laboratory of Sericulture, Southwest University, Chongqing, 400716, China
| | - Sanyuan Ma
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, 400716, China; Biological Science Research Center, Southwest University, Chongqing, 400716, China; Chongqing Key Laboratory of Sericulture, Southwest University, Chongqing, 400716, China.
| | - Qingyou Xia
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, 400716, China; Biological Science Research Center, Southwest University, Chongqing, 400716, China; Chongqing Key Laboratory of Sericulture, Southwest University, Chongqing, 400716, China.
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Qi Z, Wang Q, Wang H, Tan M. Metallothionein Attenuated Arsenic-Induced Cytotoxicity: The Underlying Mechanism Reflected by Metabolomics and Lipidomics. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:5372-5380. [PMID: 33939412 DOI: 10.1021/acs.jafc.1c00724] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Arsenic ions (As3+) have been recognized as a hazard that threatens the health of humans. Metallothionein (MT) rich in cysteine may provide favorable binding sites for chelation of As3+. However, the influence of MT on As3+-induced toxicity and the underlying mechanism are poorly understood, especially at the metabolic level. Herein, the effects of MT on As3+-induced toxicity were evaluated. Cell viability analysis suggested that MT alleviated As3+-induced cytotoxicity. The metabolic response of PC12 cells to As3+ investigated by lipidomics and metabolomics indicated that the presence of As3+ disrupted phospholipids metabolism and induced cell membrane damage. Moreover, energy and amino acid metabolism were perturbed by As3+. The perturbation of As3+ on metabolism was further illustrated by the decrease of the mitochondrial membrane potential and the rise of cellular reactive oxygen species (ROS). On the contrary, MT rescued As3+-induced metabolic disorder and suppressed ROS accumulation. In addition, the binding process between As3+ and MT was characterized. The results proved that the As3+-MT complex was formed and chelated As3+-scavenged ROS, thus alleviating the toxic effects of As3+. These results revealed that MT would be a potential agent to reduce As3+-induced cytotoxicity.
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Affiliation(s)
- Zihe Qi
- Academy of Food Interdisciplinary Sciecne, School of Food Science and Technology, Dalian Polytechnic University, Qinggongyuan 1, Ganjingzi District, Dalian, 116034 Liaoning, China
- National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian, 116034 Liaoning, China
- Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian, 116034 Liaoning, China
| | - Qinghong Wang
- Academy of Food Interdisciplinary Sciecne, School of Food Science and Technology, Dalian Polytechnic University, Qinggongyuan 1, Ganjingzi District, Dalian, 116034 Liaoning, China
- National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian, 116034 Liaoning, China
- Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian, 116034 Liaoning, China
| | - Haitao Wang
- Academy of Food Interdisciplinary Sciecne, School of Food Science and Technology, Dalian Polytechnic University, Qinggongyuan 1, Ganjingzi District, Dalian, 116034 Liaoning, China
- National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian, 116034 Liaoning, China
- Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian, 116034 Liaoning, China
| | - Mingqian Tan
- Academy of Food Interdisciplinary Sciecne, School of Food Science and Technology, Dalian Polytechnic University, Qinggongyuan 1, Ganjingzi District, Dalian, 116034 Liaoning, China
- National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian, 116034 Liaoning, China
- Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian, 116034 Liaoning, China
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Li C, Ran F, Li Z, Huang S, Duanzhi D, Liu Y, Wu M, Li Q, Wang Y, Liu C, Wang Z, Wang G, Jian S, Jin W. Calcineurin Immune Signaling in Response to Zinc Challenge in the Naked Carp Gymnocypris eckloni. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2021; 106:792-798. [PMID: 33759007 DOI: 10.1007/s00128-021-03178-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Accepted: 03/08/2021] [Indexed: 06/12/2023]
Abstract
Zinc pollution impairs neural processes and protein function and also effects calcium-related transcriptional regulation and enzyme activity. In this study, we investigated pathways that potentially respond to calcium signaling under Zn2+ stress. Specifically we measured relative expressions of GeCNAα, GeCNB, GeMT, GeTNF-α, GeIL-1β, and GeHsp90 in gills, livers, and kidneys of the indicator species Gymnocypris eckloni and found wide variation in their expression between tissues during the course of Zn2+ exposure. Notably, GeCNAα, GeCNB, GeTNF-α, GeIL-1β, and GeMT were rapidly and strongly up-regulated in gills; GeIL-1β and GeHsp90 transcription was quickly induced in kidneys; and GeCNB, GeTNF-α, GeIL-1β, and GeHsp90 were most rapidly up-regulated in livers. GeCNAα and GeMT showed a contrasting late transcriptional up-regulation. These results suggest independent branches for chelation and immune responses during self-protection against Zn2+ toxicity, and the immune response appears to be faster than metal chelation.
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Affiliation(s)
- Changzhong Li
- College of Eco-Environmental Engineering, Qinghai University, Xining, 810016, China
| | - Fengxia Ran
- College of Eco-Environmental Engineering, Qinghai University, Xining, 810016, China
| | - Zixuan Li
- College of Eco-Environmental Engineering, Qinghai University, Xining, 810016, China
| | - Shen Huang
- College of Eco-Environmental Engineering, Qinghai University, Xining, 810016, China
| | - Droma Duanzhi
- College of Eco-Environmental Engineering, Qinghai University, Xining, 810016, China
| | - Yanhui Liu
- College of Eco-Environmental Engineering, Qinghai University, Xining, 810016, China
| | - Minghui Wu
- College of Eco-Environmental Engineering, Qinghai University, Xining, 810016, China
| | - Qimei Li
- College of Eco-Environmental Engineering, Qinghai University, Xining, 810016, China
| | - Yuxiang Wang
- College of Eco-Environmental Engineering, Qinghai University, Xining, 810016, China
| | - Chaoxi Liu
- College of Eco-Environmental Engineering, Qinghai University, Xining, 810016, China
| | - Zhenji Wang
- Qinghai Provincial Fishery Environmental Monitoring Center, Xining, 810016, China
| | - Guojie Wang
- Qinghai Provincial Fishery Environmental Monitoring Center, Xining, 810016, China
| | - Shenlong Jian
- Qinghai Provincial Fishery Environmental Monitoring Center, Xining, 810016, China
| | - Wenjie Jin
- College of Eco-Environmental Engineering, Qinghai University, Xining, 810016, China.
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40
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Hou XX, Wang XQ, Zhou WJ, Li DJ. Regulatory T cells induce polarization of pro-repair macrophages by secreting sFGL2 into the endometriotic milieu. Commun Biol 2021; 4:499. [PMID: 33893391 PMCID: PMC8065041 DOI: 10.1038/s42003-021-02018-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Accepted: 03/16/2021] [Indexed: 12/17/2022] Open
Abstract
An increased number of highly active regulatory T cells (Tregs) and macrophages has been found in peritoneal fluid from women with endometriosis. Here, we show that the level of Tregs-derived soluble fibrinogen-like protein 2 (sFGL2) increases in the peritoneal fluid of women with endometriosis. Higher expression of FGL2 and its receptor CD32B is observed in eutopic endometrium and ectopic tissues. The production of sFGL2 in Tregs may be enhanced by several cytokines. sFGL2 selectively induces pro-repair macrophage polarization mainly through the activation of the SHP2-ERK1/2-STAT3 signaling pathway, and the suppression of the NF-κB signaling pathway. Furthermore, sFGL2 induces a much higher level of metallothionein (MT) expression that in turn facilitates pro-repair macrophages polarization. sFGL2-induced pro-repair macrophages promote Th2 and Tregs differentiation, creating a positive feedback loop. These findings suggest that sFGL2 secreted by Tregs skews macrophages toward a pro-repair phenotype via SHP2-ERK1/2-STAT3 signaling pathway, which is involved in the progression of endometriosis. Hou et al. discover that regulatory T-cells secrete soluble fibrinogen-like protein 2 that induces endometrial macrophages to polarize towards a pro-repair phenotype through the SHP2-ERK1/2-STAT3 signaling pathway. These data provide insights into the immunology of endometriosis.
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Affiliation(s)
- Xin-Xin Hou
- Laboratory for Reproductive Immunology, Key Laboratory of Reproduction Regulation of NPFPC, SIPPR, Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Hospital and Institute of Obstetrics and Gynecology, IRD, Fudan University Shanghai Medical College, Shanghai, China
| | - Xiao-Qiu Wang
- Laboratory for Reproductive Immunology, Key Laboratory of Reproduction Regulation of NPFPC, SIPPR, Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Hospital and Institute of Obstetrics and Gynecology, IRD, Fudan University Shanghai Medical College, Shanghai, China
| | - Wen-Jie Zhou
- Laboratory for Reproductive Immunology, Key Laboratory of Reproduction Regulation of NPFPC, SIPPR, Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Hospital and Institute of Obstetrics and Gynecology, IRD, Fudan University Shanghai Medical College, Shanghai, China
| | - Da-Jin Li
- Laboratory for Reproductive Immunology, Key Laboratory of Reproduction Regulation of NPFPC, SIPPR, Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Hospital and Institute of Obstetrics and Gynecology, IRD, Fudan University Shanghai Medical College, Shanghai, China.
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Huang X, Deng J, Xu T, Xin W, Zhang Y, Ruan X. Downregulation of metallothionein-2 contributes to oxaliplatin-induced neuropathic pain. J Neuroinflammation 2021; 18:91. [PMID: 33849565 PMCID: PMC8045403 DOI: 10.1186/s12974-021-02139-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Accepted: 03/26/2021] [Indexed: 12/15/2022] Open
Abstract
Background We previously reported a correlation between small doses of oxaliplatin penetrating onto the spinal cord and acute pain after chemotherapy. Here, we propose that MT2 within the spinal dorsal horns participates in the development of oxaliplatin-induced neuropathic pain and may be a pharmacological target for the prevention and treatment of chemotherapy-induced peripheral neuropathy (CIPN). Methods The rat model of CIPN was established by 5 consecutive injections of oxaliplatin (0.4 mg/100 g/day). Genetic restoration of neuron-specific metallothionein-2 was implemented 21 days before oxaliplatin treatment, and also, genetic inhibition by metallothionein-2 siRNA was performed. Mechanical allodynia and locomotor activity were assayed. Cell-specific expression of metallothionein-2, the mRNA levels of pro-inflammatory cytokines, nuclear translocation of NF-κB, the protein levels of expression of IκB-α, and interaction between IκB-α and P65 were evaluated in the spinal dorsal horns. Also, in vitro interaction of sequentially deleted IκB-α promoter with metallothionein-2 was used to assess the signal transduction mechanism. Results We found that oxaliplatin induced downregulation of metallothionein-2 in rat spinal cord neurons. By contrast, genetic restoration of metallothionein-2 in the spinal dorsal horn neuron blocked and reversed neuropathic pain in oxaliplatin-treated rats of both sexes, whereas genetic inhibition of metallothionein-2 triggered neuropathic pain in normal rats. Overall locomotor activity was not impaired after the genetic alterations of metallothionein-2. At the molecular level, metallothionein-2 modulated oxaliplatin-induced neuroinflammation, activation of NF-κB, and inactive transcriptional expression of IκB-α promoter, and these processes could be blocked by genetic restoration of metallothionein-2 in the spinal dorsal horn neurons. Conclusions Metallothionein-2 is a potential target for the prevention and treatment of CIPN. A reduction of NF-κB activation and inflammatory responses by enhancing the transcription of IκB-α promoter is proposed in the mechanism.
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Affiliation(s)
- Xuelin Huang
- Department of Anesthesia and Pain Medicine, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, 510000, Guangdong, China
| | - Jie Deng
- Guangdong Province Key Laboratory of Brain Function and Disease, Department of Physiology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, 510000, China
| | - Ting Xu
- Guangdong Province Key Laboratory of Brain Function and Disease, Department of Physiology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, 510000, China
| | - Wenjun Xin
- Guangdong Province Key Laboratory of Brain Function and Disease, Department of Physiology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, 510000, China
| | - Yuehong Zhang
- Department of Ophthalmology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, 510000, Guangdong, China. .,Department of Ophthalmology, The Second Affiliated Hospital of South China University of Technology, 602 Renminbei Road, Guangzhou, 510180, China.
| | - Xiangcai Ruan
- Department of Anesthesia and Pain Medicine, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, 510000, Guangdong, China. .,Department of Anesthesia and Pain Medicine, The Second Affiliated Hospital of South China University of Technology, 602 Renminbei Road, Guangzhou, 510180, China.
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42
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Song B, Xiong G, Luo H, Zuo Z, Zhou Z, Chang X. Single-cell RNA sequencing of mouse neural stem cell differentiation reveals adverse effects of cadmium on neurogenesis. Food Chem Toxicol 2021; 148:111936. [PMID: 33387572 DOI: 10.1016/j.fct.2020.111936] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 11/16/2020] [Accepted: 12/15/2020] [Indexed: 12/21/2022]
Abstract
Cadmium (Cd) is a toxic heavy metal and widely exists in the environment. Extensive studies have revealed that Cd exposure can elicit neurotoxicity and potentially interfere with neurogenesis. However, underlying mechanisms by which Cd exposure affects neurogenesis remain unclear. In this study, we performed single-cell RNA sequencing (scRNA-seq) of the differentiated mixture from neonatal mouse Neural Stem Cells (mNSCs) that were exposed to Cd for 24 h and differentiated for 7 days. Our results showed that Cd exposure led to an increase in the differentiation of NSCs into astrocytes while a decrease into neurons. Besides, Cd induced subtype-specific response and dysregulated cell-to-cell communication. Collectively, our scRNA-seq data suggested that Cd had toxic effects on NSCs differentiation at the single-cell level, which offered insight into the potential molecular mechanism of Cd on neurogenesis. Furthermore, our findings provided a new method for assessing the neurodevelopmental toxicity of environmental pollutants.
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Affiliation(s)
- Bo Song
- School of Public Health and Key Laboratory of Public Health Safety of the Ministry of Education, Fudan University, Shanghai, China.
| | - Guiya Xiong
- School of Public Health and Key Laboratory of Public Health Safety of the Ministry of Education, Fudan University, Shanghai, China.
| | - Huan Luo
- School of Public Health and Key Laboratory of Public Health Safety of the Ministry of Education, Fudan University, Shanghai, China.
| | - Zhenzi Zuo
- School of Public Health and Key Laboratory of Public Health Safety of the Ministry of Education, Fudan University, Shanghai, China.
| | - Zhijun Zhou
- School of Public Health and Key Laboratory of Public Health Safety of the Ministry of Education, Fudan University, Shanghai, China.
| | - Xiuli Chang
- School of Public Health and Key Laboratory of Public Health Safety of the Ministry of Education, Fudan University, Shanghai, China.
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43
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Hirao-Suzuki M, Takeda S, Sakai G, Waalkes MP, Sugihara N, Takiguchi M. Cadmium-stimulated invasion of rat liver cells during malignant transformation: Evidence of the involvement of oxidative stress/TET1-sensitive machinery. Toxicology 2020; 447:152631. [PMID: 33188856 DOI: 10.1016/j.tox.2020.152631] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 10/22/2020] [Accepted: 11/09/2020] [Indexed: 10/23/2022]
Abstract
Cadmium (Cd) is recognized as a highly toxic heavy metal for humans in part because it is a multi-organ carcinogen. To clarify the mechanism of Cd carcinogenicity, we have established an experimental system using rat liver TRL1215 cells exposed to 2.5 μM Cd for 10 weeks and then cultured in Cd-free medium for an additional 4 weeks (total 14 weeks). Recently, we demonstrated, by using this experimental system, that 1) Cd stimulates cell invasion by suppression of apolipoprotein E (ApoE) expression, and 2) Cd induces DNA hypermethylation of the regulatory region of the ApoE gene. However, the underlying mechanism(s) as well as other potential genetic participants in the Cd-stimulated invasion are undefined. In the present work, we found that concurrent with enhanced invasion, Cd induced oxidative stress, coupled with the production of oxidative stress-sensitive metallothionein 2A (MT2A), which lead to down-modulation of ten-eleven translocation methylcytosine dioxygenase 1 (TET1: DNA demethylation) in addition to ApoE, without impacting DNA methyltransferases (DNMTs: DNA methylation) levels. Furthermore, the expression of tissue inhibitor of metalloproteinase 2 and 3 (TIMP2 and TIMP3) that are positively regulated by TET1, were decreased by Cd. The genes (ApoE/TET1/TIMP2/TIMP3) suppressed by Cd were further suppressed by hydroquinone (HQ; a reactive oxygen species [ROS] producer), whereas N-acetyl-l-cysteine (NAC; a ROS scavenger) prevented the suppression of their expression by HQ. In addition, NAC reversed their expression suppressed by Cd. Cd-stimulated cell invasion was clearly dampened by NAC in a concentration-dependent manner. Overall these findings suggest that 1) altered TET1 expression and activity together with ApoE are likely involved in the enhanced invasiveness due to Cd exposure, and 2) Cd down-regulation of TET1 likely evokes a reduction in ApoE expression (possible by DNA hypermethylation), and 3) anti-oxidants are effective in abrogation of the enhanced invasiveness that occurs concurrently with Cd-induced malignant transformation.
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Affiliation(s)
- Masayo Hirao-Suzuki
- Laboratory of Xenobiotic Metabolism and Environmental Toxicology, Faculty of Pharmaceutical Sciences, Hiroshima International University (HIU), 5-1-1 Hiro-koshingai, Kure, Hiroshima, 737-0112, Japan
| | - Shuso Takeda
- Laboratory of Xenobiotic Metabolism and Environmental Toxicology, Faculty of Pharmaceutical Sciences, Hiroshima International University (HIU), 5-1-1 Hiro-koshingai, Kure, Hiroshima, 737-0112, Japan; Laboratory of Molecular Life Sciences, Faculty of Pharmacy and Pharmaceutical Sciences, Fukuyama University, Sanzou 1, Gakuen-cho, Fukuyama, Hiroshima, 729-0292, Japan.
| | - Genki Sakai
- Laboratory of Xenobiotic Metabolism and Environmental Toxicology, Faculty of Pharmaceutical Sciences, Hiroshima International University (HIU), 5-1-1 Hiro-koshingai, Kure, Hiroshima, 737-0112, Japan; Laboratory of Molecular Life Sciences, Faculty of Pharmacy and Pharmaceutical Sciences, Fukuyama University, Sanzou 1, Gakuen-cho, Fukuyama, Hiroshima, 729-0292, Japan
| | | | - Narumi Sugihara
- Laboratory of Molecular Life Sciences, Faculty of Pharmacy and Pharmaceutical Sciences, Fukuyama University, Sanzou 1, Gakuen-cho, Fukuyama, Hiroshima, 729-0292, Japan
| | - Masufumi Takiguchi
- Laboratory of Xenobiotic Metabolism and Environmental Toxicology, Faculty of Pharmaceutical Sciences, Hiroshima International University (HIU), 5-1-1 Hiro-koshingai, Kure, Hiroshima, 737-0112, Japan.
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Widhalm R, Ellinger I, Granitzer S, Forsthuber M, Bajtela R, Gelles K, Hartig PY, Hengstschläger M, Zeisler H, Salzer H, Gundacker C. Human placental cell line HTR-8/SVneo accumulates cadmium by divalent metal transporters DMT1 and ZIP14. Metallomics 2020; 12:1822-1833. [PMID: 33146651 DOI: 10.1039/d0mt00199f] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Cadmium (Cd) is a global pollutant that accumulates in the placenta and can cause placental dysfunction. Although iron transporters have been suggested to participate in placental Cd uptake, it is still unknown which transporters are actually involved in this process. We specifically aimed to study the role of three iron transporters in the uptake of Cd into the placental cell line HTR-8/SVneo. For this purpose, Divalent Metal Transporter (DMT)1 and ZRT/IRT like protein (ZIP)8 and ZIP14 were downregulated and changes in cellular Cd levels analysed in relation to controls. As clearly shown by the reduction of the Cd content by ∼60% in DMT1- and ZIP14-downregulated cells, the two proteins are essential for Cd accumulation in HTR-8/SVneo cells. Using a validated antibody, we show DMT1 to be localised in situ in trophoblast and stromal cells. We further wanted to investigate how placental cells cope with Cd loading and which metallothionein (MT) isoforms they express. Cd-exposed cells accumulate Cd in a dose-dependent manner and upregulate MT2A accordingly (up to 15-fold induction upon 5 μM CdCl2 treatment for 72 h). 5 μM Cd exposure for 72 h decreased cell number to 60%, an effect that was aggravated by MT2A depletion (cell number reduced to 30%) indicating additive effects. In conclusion, our data suggest that DMT1 and ZIP14 are required for Cd uptake into human placental cells that upregulate MT2A to store and detoxify the metal. Cd storage in the placenta reduces Cd transport to the fetus, which, however, could impair placental functions and fetal development.
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Affiliation(s)
- Raimund Widhalm
- Karl-Landsteiner Private University for Health Sciences, Krems, Austria
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Macchi M, Bambini L, Franceschini S, Alexa ID, Agostoni C. The effect of tobacco smoking during pregnancy and breastfeeding on human milk composition-a systematic review. Eur J Clin Nutr 2020; 75:736-747. [PMID: 33087893 DOI: 10.1038/s41430-020-00784-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 09/09/2020] [Accepted: 10/08/2020] [Indexed: 12/13/2022]
Abstract
Tobacco smoking is still a widespread habit in pregnant and breastfeeding women. While the role of these risk factors on neonatal outcomes has been deeply studied, their effect on human milk composition is still not completely clear. This study aimed to report the most up to date evidence about the alteration of breast milk composition of smoking breastfeeding mothers compared to non-smoking ones. We performed a systematic review by searching PubMed, Embase, and Cochrane Library databases. Evaluated data were extracted and critically analyzed by two independent authors. PRISMA guidelines were applied, and the risk of bias was assessed (ROBINS), as was the methodological quality of the included studies (GRADE). After applying the inclusion criteria, we included 20 studies assessed as medium or high quality. In all the studies, we analyzed data regarding 1769 mothers (398 smokers and 971 nonsmokers). Smoking was associated with a lower content of lipids, calories, and proteins. Moreover, it was characterized by decreased antioxidant properties and an altered immune status. Smoking during pregnancy and breastfeeding is significantly associated with an alteration of milk metabolic properties. Further studies are needed to investigate how these changes can alter newborns' development and outcomes and which molecular patterns are involved.
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Affiliation(s)
- Marina Macchi
- University of Milan, Via Festa del Perdono, 7, 20122, Milano, MI, Italy.
| | - Laura Bambini
- University of Bologna, Via Zamboni, 33, 40126, Bologna, BO, Italy
| | | | | | - Carlo Agostoni
- Pediatric Intermediate Care Unit, Fondazione IRCCS, Ca' Granda Ospedale Maggiore Policlinico, Via Francesco Sforza, 35, 20122, Milano, MI, Italy.,Department of Clinical Sciences and Community Health, University of Milan, Milan, Via Festa del Perdono, 7, 20122, Milano, MI, Italy
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46
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Calixto MRP, Rech D, Dos Santos VL, Madeira TB, Nixdorf SL, Fagundes TR, Davis RAH, Bastos FF, Bastos-Neto JDC, Bastos VLFDC, Zanandrea AC, de Lima JR, Victorino VJ, Panis C. Chimarrão consumption and prognostic factors in breast cancer: Correlation with antioxidants and blood caffeine levels. Phytother Res 2020; 35:888-897. [PMID: 32924205 DOI: 10.1002/ptr.6836] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 06/29/2020] [Accepted: 07/18/2020] [Indexed: 12/24/2022]
Abstract
Breast cancer is the second most common malignancy among women. Ilex paraguariensis A. St. Hil, known as yerba mate, is widely consumed in southern Brazil as a hot infusion drink known as chimarrão. This herb has a complex chemical composition and is rich in antioxidants, which may interfere in the course of chronic inflammatory diseases as breast cancer. This study investigated the impact of chimarrão consumption on the clinicopathological profile of women with breast cancer attended at Francisco Beltrão Cancer Hospital, Paraná, Brazil. Blood antioxidants and caffeine profiles were assessed. Decreases in reduced glutathione and metallothionein levels, and increase in catalase activity were observed among breast cancer patients that were chimarrão consumers. The levels of circulating caffeine in breast cancer patients with luminal A tumors were higher than those in patients with luminal B and HER-2 subtypes. Furthermore, overweight patients presented higher caffeine levels than the eutrophic ones. It was found positive associations between chimarrão intake and high body mass index, and chimarrão intake and menopause at diagnosis. Altogether, these findings suggest that chimarrão consumption affects the blood antioxidants of breast cancer patients, and that the caffeine present in this mixture may favor the development of tumor of good prognosis. HIGHLIGHTS: Chimarrão consumption may affect the course of chronic inflammatory diseases, as breast cancer. Chimarrão intake changed blood antioxidants in breast cancer patients who were current consumers when compared to the non-consumers ones. High levels of caffeine were detected in patients bearing luminal A tumors, suggesting a protective role.
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Affiliation(s)
- Maria Rachel Pedrazzoli Calixto
- Laboratório de Biologia de Tumores, Centro de Ciências da Saúde, Universidade Estadual do Oeste do Paraná (Unioeste), Francisco Beltrão-Paraná, Brazil.,Programa de Pós-graduação em Ciências Aplicadas à Saúde, Centro de Ciências da Saúde, Universidade Estadual do Oeste do Paraná (Unioeste), Francisco Beltrão-Paraná, Brazil
| | - Daniel Rech
- Laboratório de Biologia de Tumores, Centro de Ciências da Saúde, Universidade Estadual do Oeste do Paraná (Unioeste), Francisco Beltrão-Paraná, Brazil.,Programa de Pós-graduação em Ciências Aplicadas à Saúde, Centro de Ciências da Saúde, Universidade Estadual do Oeste do Paraná (Unioeste), Francisco Beltrão-Paraná, Brazil.,Hospital de Câncer de Francisco Beltrão (Ceonc), Francisco Beltrão-Paraná, Brazil
| | - Vanessa L Dos Santos
- Laboratório de Biologia de Tumores, Centro de Ciências da Saúde, Universidade Estadual do Oeste do Paraná (Unioeste), Francisco Beltrão-Paraná, Brazil
| | - Tiago Bervelieri Madeira
- Laboratório de Espectrometria de Massas, Departamento de Química, Universidade Estadual de Londrina, Londrina-Paraná, Brazil
| | - Suzana Lucy Nixdorf
- Laboratório de Espectrometria de Massas, Departamento de Química, Universidade Estadual de Londrina, Londrina-Paraná, Brazil
| | - Tatiane Renata Fagundes
- Programa de Pós-graduação em Patologia Experimental, Universidade Estadual de Londrina, Londrina-Paraná, Brazil
| | - Rachel Ann Hauser Davis
- Laboratório de Avaliação e Promoção da Saúde Ambiental, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Manguinhos, Rio de Janeiro, Brazil
| | - Frederico Freire Bastos
- Universidade EStadual do Rio de Janeiro (UERJ), Instituto de Biologia Roberto Alcântara Gomes, Departamento de Bioquímica, Rio de Janeiro, RJ, Brazil
| | - Jayme da Cunha Bastos-Neto
- Universidade EStadual do Rio de Janeiro (UERJ), Instituto de Biologia Roberto Alcântara Gomes, Departamento de Bioquímica, Rio de Janeiro, RJ, Brazil
| | - Vera Lucia Freire da Cunha Bastos
- Universidade EStadual do Rio de Janeiro (UERJ), Instituto de Biologia Roberto Alcântara Gomes, Departamento de Bioquímica, Rio de Janeiro, RJ, Brazil
| | - Ana Carolina Zanandrea
- Universidade EStadual do Rio de Janeiro (UERJ), Instituto de Biologia Roberto Alcântara Gomes, Departamento de Bioquímica, Rio de Janeiro, RJ, Brazil
| | - Josivan Ribeiro de Lima
- Universidade EStadual do Rio de Janeiro (UERJ), Instituto de Biologia Roberto Alcântara Gomes, Departamento de Bioquímica, Rio de Janeiro, RJ, Brazil
| | - Vanessa Jacob Victorino
- Instituto Federal de Educação, Ciência e Tecnologia do Rio de Janeiro (IFRJ), Campus Engenheiro Paulo de Frontin, Rio de Janeiro, Brazil
| | - Carolina Panis
- Laboratório de Biologia de Tumores, Centro de Ciências da Saúde, Universidade Estadual do Oeste do Paraná (Unioeste), Francisco Beltrão-Paraná, Brazil.,Programa de Pós-graduação em Ciências Aplicadas à Saúde, Centro de Ciências da Saúde, Universidade Estadual do Oeste do Paraná (Unioeste), Francisco Beltrão-Paraná, Brazil
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Ogushi S, Yoshida Y, Nakanishi T, Kimura T. CpG Site-Specific Regulation of Metallothionein-1 Gene Expression. Int J Mol Sci 2020; 21:E5946. [PMID: 32824906 PMCID: PMC7503544 DOI: 10.3390/ijms21175946] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Revised: 08/12/2020] [Accepted: 08/15/2020] [Indexed: 01/13/2023] Open
Abstract
Metal-binding inducible proteins called metallothioneins (MTs) protect cells from heavy-metal toxicity. Their transcription is regulated by metal response element (MRE)-binding transcription factor-1 (MTF1), which is strongly recruited to MREs in the MT promoters, in response to Zn and Cd. Mouse Mt1 gene promoter contains 5 MREs (a-e), and MTF1 has the highest affinity to MREd. Epigenetic changes like DNA methylation might affect transcription and, therefore, the cytoprotective function of MT genes. To reveal the CpG site(s) critical for Mt1 transcription, we analyzed the methylation status of CpG dinucleotides in the Mt1 gene promoter through bisulfite sequencing in P1798 mouse lymphosarcoma cells, with high or low MT expression. We found demethylated CpG sites near MREd and MREe, in cells with high expression. Next, we compared Mt1 gene-promoter-driven Lucia luciferase gene expression in unmethylated and methylated reporter vectors. To clarify the effect of complete and partial CpG methylation, we used M.SssI (CG→5mCG) and HhaI (GCGC→G5mCGC)-methylated reporter vectors. Point mutation analysis revealed that methylation of a CpG site near MREd and MREe strongly inhibited Mt1 gene expression. Our results suggest that the methylation status of this site is important for the regulation of Mt1 gene expression.
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Affiliation(s)
- Shoko Ogushi
- Department of Life Science, Faculty of Science and Engineering, Setsunan University, Neyagawa 572-8508, Japan;
| | - Yuya Yoshida
- Department of Pathological Biochemistry, Faculty of Pharmaceutical Sciences, Setsunan University, Hirakata 573-0101, Japan;
| | - Tsuyoshi Nakanishi
- Laboratory of Hygienic Chemistry and Molecular Toxicology, Gifu Pharmaceutical University, Gifu 501-1196, Japan;
| | - Tomoki Kimura
- Department of Life Science, Faculty of Science and Engineering, Setsunan University, Neyagawa 572-8508, Japan;
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Fastrès A, Pirottin D, Fievez L, Marichal T, Desmet CJ, Bureau F, Clercx C. Characterization of the Bronchoalveolar Lavage Fluid by Single Cell Gene Expression Analysis in Healthy Dogs: A Promising Technique. Front Immunol 2020; 11:1707. [PMID: 32849601 PMCID: PMC7406785 DOI: 10.3389/fimmu.2020.01707] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 06/26/2020] [Indexed: 12/14/2022] Open
Abstract
Single-cell mRNA-sequencing (scRNA-seq) is a technique which enables unbiased, high throughput and high-resolution transcriptomic analysis of the heterogeneity of cells within a population. This recent technique has been described in humans, mice and other species in various conditions to cluster cells in populations and identify new subpopulations, as well as to study the gene expression of cells in various tissues, conditions and origins. In dogs, a species for which markers of cell populations are often limiting, scRNA-seq presents with elevated yet untested potential for the study of tissue composition. As a proof of principle, we used scRNA-seq to identify cellular populations of the bronchoalveolar lavage fluid (BALF) in healthy dogs (n = 4). A total of 5,710 cells were obtained and analyzed by scRNA-seq. Fourteen distinct clusters of cells were identified, further identified as macrophages/monocytes (4 clusters), T cells (2 clusters) and B cells (1 cluster), neutrophils (1 cluster), mast cells (1 cluster), mature or immature dendritic cells (1 cluster each), ciliated or non-ciliated epithelial cells (1 cluster each) and cycling cells (1 cluster). We used for the first time in dogs the scRNA-seq to investigate cellular subpopulations of the BALF of dog. This study hence expands our knowledge on dog lung immune cell populations, paves the way for the investigation at single-cell level of lower respiratory diseases in dogs, and establishes that scRNA-seq is a powerful tool for the study of dog tissue composition.
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Affiliation(s)
- Aline Fastrès
- Department of Clinical Sciences, Faculty of Veterinary Medicine, FARAH, University of Liège, Liège, Belgium
| | - Dimitri Pirottin
- Laboratory of Cellular and Molecular Immunology, Department of Functional Sciences and GIGA-Inflammation, Infection and Immunity, University of Liège, Liège, Belgium
| | - Laurence Fievez
- Laboratory of Cellular and Molecular Immunology, Department of Functional Sciences and GIGA-Inflammation, Infection and Immunity, University of Liège, Liège, Belgium
| | - Thomas Marichal
- Laboratory of Cellular and Molecular Immunology, Department of Functional Sciences and GIGA-Inflammation, Infection and Immunity, University of Liège, Liège, Belgium
| | - Christophe J Desmet
- Laboratory of Cellular and Molecular Immunology, Department of Functional Sciences and GIGA-Inflammation, Infection and Immunity, University of Liège, Liège, Belgium
| | - Fabrice Bureau
- Laboratory of Cellular and Molecular Immunology, Department of Functional Sciences and GIGA-Inflammation, Infection and Immunity, University of Liège, Liège, Belgium
| | - Cécile Clercx
- Department of Clinical Sciences, Faculty of Veterinary Medicine, FARAH, University of Liège, Liège, Belgium
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49
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Zhou L, Adrianto I, Wang J, Wu X, Datta I, Mi QS. Single-Cell RNA-Seq Analysis Uncovers Distinct Functional Human NKT Cell Sub-Populations in Peripheral Blood. Front Cell Dev Biol 2020; 8:384. [PMID: 32528956 PMCID: PMC7264113 DOI: 10.3389/fcell.2020.00384] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Accepted: 04/29/2020] [Indexed: 12/13/2022] Open
Abstract
Vα24-invariant human natural killer T (NKT) cells comprise a unique subset of CD1d-restricted T cells with potent immune regulatory function and are involved in the development of a variety of human diseases. However, the lack of comprehensive molecular subset identities limits their objective classification and clinical application. Using unbiased single-cell RNA sequencing (scRNA-seq) of over 4000 unstimulated and 7000 stimulated human peripheral blood NKT cells, we identified four and five clusters of NKT cells from each NKT group, respectively. Our study uncovers multiple previously unrecognized NKT subsets with potential functional specificities, including a cluster of NKT cells with regulatory T cell property. Flow cytometry and Ingenuity Pathway Analysis confirmed the existence of these NKT populations and indicated the related functional capacities. Our study provides the unbiased and more comprehensive molecular identities of human NKT subsets, which will eventually lead the way to tailored therapies targeting selected NKT subsets.
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Affiliation(s)
- Li Zhou
- Center for Cutaneous Biology and Immunology Research, Department of Dermatology, Henry Ford Health System, Detroit, MI, United States
- Immunology Research Program, Henry Ford Cancer Institute, Henry Ford Health System, Detroit, MI, United States
| | - Indra Adrianto
- Center for Bioinformatics, Department of Public Health Sciences, Henry Ford Health System, Detroit, MI, United States
| | - Jie Wang
- Center for Cutaneous Biology and Immunology Research, Department of Dermatology, Henry Ford Health System, Detroit, MI, United States
- Immunology Research Program, Henry Ford Cancer Institute, Henry Ford Health System, Detroit, MI, United States
| | - Xiaojun Wu
- Center for Cutaneous Biology and Immunology Research, Department of Dermatology, Henry Ford Health System, Detroit, MI, United States
- Immunology Research Program, Henry Ford Cancer Institute, Henry Ford Health System, Detroit, MI, United States
| | - Indrani Datta
- Center for Bioinformatics, Department of Public Health Sciences, Henry Ford Health System, Detroit, MI, United States
| | - Qing-Sheng Mi
- Center for Cutaneous Biology and Immunology Research, Department of Dermatology, Henry Ford Health System, Detroit, MI, United States
- Immunology Research Program, Henry Ford Cancer Institute, Henry Ford Health System, Detroit, MI, United States
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50
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Liu HL, Chuang HY, Hsu CN, Lee SS, Yang CC, Liu KT. Effects of Vitamin D Receptor, Metallothionein 1A, and 2A Gene Polymorphisms on Toxicity of the Peripheral Nervous System in Chronically Lead-Exposed Workers. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:E2909. [PMID: 32340109 PMCID: PMC7215364 DOI: 10.3390/ijerph17082909] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Revised: 04/20/2020] [Accepted: 04/21/2020] [Indexed: 01/23/2023]
Abstract
Chronic exposure to lead is neurotoxic to the human peripheral sensory system. Variant vitamin D receptor (VDR) genes and polymorphisms of metallothioneins (MTs) are associated with different outcomes following lead toxicity. However, no evidence of a relationship between lead neurotoxicity and polymorphisms has previously been presented. In this study, we investigated the relationship between the polymorphisms of VDR, MT1A, and MT2A genes and lead toxicity following chronic occupational lead exposure. We measured vibration perception thresholds (VPT) and current perception thresholds (CPT) in 181 workers annually for five years. The outcome variables were correlated to the subject's index of long-term lead exposure. Polymorphisms of VDR, MT1A, and MT2A were defined. The potential confounders, including age, sex, height, smoking, alcohol consumption, and working life span, were also collected and analyzed using linear regression. The regression coefficients of some gene polymorphisms were at least 20 times larger than regression coefficients of time-weighted index of cumulative blood lead (TWICL) measures. All regression coefficients of TWICL increased slightly. MT1A rs11640851 (AA/CC) was associated with a statistically significant difference in all neurological outcomes except hand and foot VPT. MT1A rs8052394 was associated with statistically significant differences in hand and foot CPT 2000 Hz. In MT2A rs10636, those with the C allele showed a greater effect on hand CPT than those with the G allele. Among the VDR gene polymorphisms, the Apa rs7975232 (CC/AA) single nucleotide polymorphism was associated with the greatest difference in hand CPT. MT2A rs28366003 appeared to have a neural protective effect, whereas Apa (rs7975232) of VDR and MT2A rs10636 increased the neurotoxicity as measured by CPT in the hands. MT1A rs8052394 had a protective effect on large myelinated nerves. MT1A rs11640851 was associated with susceptibility to neurotoxicity.
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Affiliation(s)
- Hsin-Liang Liu
- Division of Internal Medicine, Department of Emergency Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80708, Taiwan;
| | - Hung-Yi Chuang
- Department of Public Health, Kaohsiung Medical University, Kaohsiung 80708, Taiwan;
- Department of Environmental and Occupational Medicine, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan;
| | - Chien-Ning Hsu
- Department of Pharmacy in Kaohsiung Chang Gung Memorial Hospital, and School of Pharmacy, Kaohsiung Medical University, Kaohsiung 80708, Taiwan;
| | - Su-Shin Lee
- Center for Stem Cell Research, Kaohsiung Medical University, Kaohsiung 80708, Taiwan;
| | - Chen-Cheng Yang
- Department of Environmental and Occupational Medicine, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan;
| | - Kuan-Ting Liu
- Division of Internal Medicine, Department of Emergency Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80708, Taiwan;
- School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
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