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Li K, Wang J, Fang L, Lou Y, Li J, Li Q, Luo Q, Zheng X, Fang J. Chronic inhalation of H 2S in low concentration induces immunotoxicity and inflammatory effects in lung tissue of rats. Ecotoxicol Environ Saf 2024; 276:116279. [PMID: 38581906 DOI: 10.1016/j.ecoenv.2024.116279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 03/25/2024] [Accepted: 03/30/2024] [Indexed: 04/08/2024]
Abstract
Hydrogen sulfide (H2S) is a typical odour compound mainly causing respiratory and central nervous system symptoms. However, the immunotoxicity of inhaled H2S and the underlying mechanisms remain largely unknown. In this study, a low-dose inhalation exposure to H2S was arranged to observe inflammatory response and immunotoxicity in lung tissue of rats. Low concentrations of H2S exposure affected the immune level of pulmonary tissue and peripheral blood. Significant pathological changes in lung tissue in the exposure group were observed. At low concentration, H2S not only induced the upregulation of AQP-4 and MMP-9 expression but also stimulated immune responses, initiating various anti-inflammatory and inflammatory factors, altering tissue homeostatic environments. The TNF and chemokine signaling pathway played an important role which can promote the deterioration of pulmonary inflammatory processes and lead to lung injury and fibrosis. Excessive immune response causes an inflammatory effect and blood-gas barrier damage. These data will be of value in evaluating future occupational health risks and providing technical support for the further development of reliable, sensitive, and easy-to-use screening indicators of exposure injury.
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Affiliation(s)
- Kexian Li
- Naval Medical Centre, Naval Medical University, Shanghai 200433, China
| | - Jian Wang
- Shanghai Radio Equipment Research Institute, Shanghai 201109, China; Shanghai Shentian Industrial Co., Ltd. Shanghai, 200090
| | - Liben Fang
- Naval Medical Centre, Naval Medical University, Shanghai 200433, China
| | - Yinghua Lou
- Hubei Zhijiang People's Hospital, Hubei 443200, China
| | - Jue Li
- Department of Environmental Science & Engineering, Fudan University, Shanghai 200438, China
| | - Qihui Li
- Department of Environmental Science & Engineering, Fudan University, Shanghai 200438, China
| | - Qun Luo
- Naval Medical Centre, Naval Medical University, Shanghai 200433, China
| | - Xiaowei Zheng
- Department of Environmental Science & Engineering, Fudan University, Shanghai 200438, China
| | - Jingjing Fang
- Naval Medical Centre, Naval Medical University, Shanghai 200433, China.
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Banydeen R, Lacavalerie MR, Florentin J, Boullanger C, Medhaoui H, Resiere D, Neviere R. Central sleep apnea and exposure to ambient hydrogen sulfide emissions from massive strandings of decomposing sargassum in the Caribbean. Sci Total Environ 2024; 912:168886. [PMID: 38016560 DOI: 10.1016/j.scitotenv.2023.168886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 11/08/2023] [Accepted: 11/23/2023] [Indexed: 11/30/2023]
Abstract
BACKGROUND Sargassum invasion of Caribbean and American shorelines is a recurring environmental hazard. Potential health effects of long-term chronic exposure to sargassum gaseous emissions, notably hydrogen sulfide (H2S), are overlooked. H2S plays an important role in neurotransmission and is involved in generating and transmitting respiratory rhythm. Central sleep apnea (CSA) has been attributed to the depression of respiratory centers. OBJECTIVE Evaluate the effects of exposure to sargassum-H2S on CSA. METHODS This study, set in the Caribbean, describes the clinical and polysomnographic characteristics of individuals living and/or working in areas impacted by sargassum strandings, in comparison with non-exposed subjects. Environmental exposure was estimated by the closest ground H2S sensor. Multivariate linear regression was applied to analyze CSA changes according to cumulative H2S exposure over time. Effects of air pollution and other sargassum toxic compounds (NH3) on CSA were also controlled. RESULTS Among the 685 study patients, 27 % were living and/or working in sargassum impacted areas. Compared with non-exposed patients, exposed ones had similar sleep apnea syndrome risk factors, but had increased levels of CSA events (expressed as absolute number or % of total sleep apnea). Multivariate regression retained only male gender and mean H2S concentration over a 6-month exposure period as independent predictors of an increase in CSA events. A minimal exposure length of 1 month generated a significant rise in CSA events, with the latter increasing proportionally with a cumulative increase in H2S concentration over time. CONCLUSION This pioneer work highlights a potential effect of sargassum-H2S on the central nervous system, notably on the modulation of the activity of the brain's respiratory control center. These observations, jointly with previous studies from our group, constitute a body of evidence strongly supporting a deleterious effect of sargassum-H2S on the health of individuals chronically exposed to low to moderate concentration levels over time.
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Affiliation(s)
- Rishika Banydeen
- Department of Toxicology and Critical Care Medicine, University Hospital of Martinique (CHU Martinique), 97261 Fort-de-France, France; Cardiovascular Research Team (UR5_3 PC2E), University of the French West Indies (Université des Antilles), 97200 Fort de France, France
| | - Mickael Rejaudry Lacavalerie
- Cardiovascular Research Team (UR5_3 PC2E), University of the French West Indies (Université des Antilles), 97200 Fort de France, France; Department of Neurophysiology, University Hospital of Martinique (CHU Martinique), 97261 Fort-de-France, France
| | - Jonathan Florentin
- Department of Toxicology and Critical Care Medicine, University Hospital of Martinique (CHU Martinique), 97261 Fort-de-France, France; Cardiovascular Research Team (UR5_3 PC2E), University of the French West Indies (Université des Antilles), 97200 Fort de France, France
| | - Carole Boullanger
- Martinique Observatory of Air Quality (Madininair), 97200 Fort-de-France, France
| | - Hossein Medhaoui
- Department of Toxicology and Critical Care Medicine, University Hospital of Martinique (CHU Martinique), 97261 Fort-de-France, France; Cardiovascular Research Team (UR5_3 PC2E), University of the French West Indies (Université des Antilles), 97200 Fort de France, France
| | - Dabor Resiere
- Department of Toxicology and Critical Care Medicine, University Hospital of Martinique (CHU Martinique), 97261 Fort-de-France, France; Cardiovascular Research Team (UR5_3 PC2E), University of the French West Indies (Université des Antilles), 97200 Fort de France, France
| | - Remi Neviere
- Cardiovascular Research Team (UR5_3 PC2E), University of the French West Indies (Université des Antilles), 97200 Fort de France, France; Department of Neurophysiology, University Hospital of Martinique (CHU Martinique), 97261 Fort-de-France, France.
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Quist AJL, Johnston JE. Respiratory and nervous system effects of a hydrogen sulfide crisis in Carson, California. Sci Total Environ 2024; 906:167480. [PMID: 37778548 PMCID: PMC10851923 DOI: 10.1016/j.scitotenv.2023.167480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 09/20/2023] [Accepted: 09/28/2023] [Indexed: 10/03/2023]
Abstract
BACKGROUND In October 2021, many residents in Carson, California experienced malodors, headaches, and respiratory symptoms. Hydrogen sulfide (H2S), a toxic odorous gas, was measured in Carson at concentrations up to 7000 parts per billion (ppb) and remained above California's acute air quality standard of 30 ppb for about a month. Research on how low- and medium-level H2S exposure affects the respiratory and nervous systems has yielded conflicting results, and few studies have examined the effects of subacute H2S exposure. METHODS We calculated daily rates of emergency department (ED) visits with various respiratory and nervous systems diagnosis codes in Carson area ZIP codes (≤6 km from event's epicenter) and in Los Angeles County ZIP codes >15 km from event's epicenter (control area). Using controlled interrupted time series, we compared ED visit rates during the month of the H2S crisis in Carson to the predicted rates had the incident not occurred, based on 2018-2021 ED trends, and controlling for ED visit rate changes in the control area. RESULTS We observed a 24 % increase in ED visit rate for all respiratory system diseases (rate ratio = 1.24, 95 % CI: 1.16, 1.32), a 38 % increase for asthma (RR = 1.38, 95 % CI: 1.26, 1.50), a 26 % increase for acute upper respiratory infections (RR = 1.26, 95 % CI: 1.13, 1.38), a 21 % increase for dizziness (RR = 1.21, 95 % CI: 1.04, 1.38), and a 25 % increase for migraines and headaches (RR = 1.25, 95 % CI: 1.13, 1.36) in the Carson area during the first month of the H2S event compared to the expected rates. CONCLUSIONS This H2S crisis was associated with increased ED visit rates for multiple respiratory and nervous system outcomes. Reducing H2S exposure and improving to response during H2S episodes may improve public health.
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Affiliation(s)
- Arbor J L Quist
- Department of Population and Public Health Sciences, Keck School of Medicine, University of Southern California, 1845 N Soto St., Los Angeles, CA 90032, United States of America.
| | - Jill E Johnston
- Department of Population and Public Health Sciences, Keck School of Medicine, University of Southern California, 1845 N Soto St., Los Angeles, CA 90032, United States of America
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Ryan K, Greenway R, Landers J, Arias-Rodriguez L, Tobler M, Kelley JL. Selection on standing genetic variation mediates convergent evolution in extremophile fish. Mol Ecol 2023; 32:5042-5054. [PMID: 37548336 DOI: 10.1111/mec.17081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 06/23/2023] [Accepted: 07/11/2023] [Indexed: 08/08/2023]
Abstract
Hydrogen sulfide is a toxic gas that disrupts numerous biological processes, including energy production in the mitochondria, yet fish in the Poecilia mexicana species complex have independently evolved sulfide tolerance several times. Despite clear evidence for convergence at the phenotypic level in these fishes, it is unclear if the repeated evolution of hydrogen sulfide tolerance is the result of similar genomic changes. To address this gap, we used a targeted capture approach to sequence genes associated with sulfide processes and toxicity from five sulfidic and five nonsulfidic populations in the species complex. By comparing sequence variation in candidate genes to a reference set, we identified similar population structure and differentiation, suggesting that patterns of variation in most genes associated with sulfide processes and toxicity are due to demographic history and not selection. But the presence of tree discordance for a subset of genes suggests that several loci are evolving divergently between ecotypes. We identified two differentiation outlier genes that are associated with sulfide detoxification in the mitochondria that have signatures of selection in all five sulfidic populations. Further investigation into these regions identified long, shared haplotypes among sulfidic populations. Together, these results reveal that selection on standing genetic variation in putatively adaptive genes may be driving phenotypic convergence in this species complex.
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Affiliation(s)
- Kara Ryan
- School of Biological Sciences, Washington State University, Pullman, Washington, USA
| | - Ryan Greenway
- Zoology and Evolutionary Biology, Department of Biology, University of Konstanz, Constance, Germany
- Division of Biology, Kansas State University, Manhattan, Kansas, USA
| | - Jake Landers
- School of Biological Sciences, Washington State University, Pullman, Washington, USA
| | - Lenin Arias-Rodriguez
- División Académica de Ciencias Biológicas, Universidad Juárez Autónoma de Tabasco (UJAT), Villahermosa, Mexico
| | - Michael Tobler
- Division of Biology, Kansas State University, Manhattan, Kansas, USA
| | - Joanna L Kelley
- School of Biological Sciences, Washington State University, Pullman, Washington, USA
- Department of Ecology and Evolutionary Biology, University of California Santa Cruz, Santa Cruz, California, USA
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Sun H, Xu Q, Xu C, Zhang Y, Ai J, Ren M, Wang S, Kong F. A highly sensitive and low toxicity cellulose-based fluorescent polymer for H 2S detection in cells, zebrafish and food samples. Anal Methods 2023; 15:3156-3160. [PMID: 37345553 DOI: 10.1039/d3ay00580a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/23/2023]
Abstract
A cellulose based polymer probe (HC-HS) was prepared for the detection of H2S. HC-HS can be applied to fluorescence imaging of H2S in living cells and zebrafish, and HC-HS was made into test strips to detect H2S produced in the process of food corruption.
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Affiliation(s)
- Hui Sun
- State Key Laboratory of Biobased Material and Green Papermaking, Key Laboratory of Pulp & Paper Science and Technology of Shandong Province, Ministry of Education, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250353, China.
| | - Qingyu Xu
- State Key Laboratory of Biobased Material and Green Papermaking, Key Laboratory of Pulp & Paper Science and Technology of Shandong Province, Ministry of Education, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250353, China.
| | - Chen Xu
- State Key Laboratory of Biobased Material and Green Papermaking, Key Laboratory of Pulp & Paper Science and Technology of Shandong Province, Ministry of Education, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250353, China.
| | - Yukun Zhang
- State Key Laboratory of Biobased Material and Green Papermaking, Key Laboratory of Pulp & Paper Science and Technology of Shandong Province, Ministry of Education, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250353, China.
| | - Jindong Ai
- State Key Laboratory of Biobased Material and Green Papermaking, Key Laboratory of Pulp & Paper Science and Technology of Shandong Province, Ministry of Education, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250353, China.
| | - Mingguang Ren
- State Key Laboratory of Biobased Material and Green Papermaking, Key Laboratory of Pulp & Paper Science and Technology of Shandong Province, Ministry of Education, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250353, China.
| | - Shoujuan Wang
- State Key Laboratory of Biobased Material and Green Papermaking, Key Laboratory of Pulp & Paper Science and Technology of Shandong Province, Ministry of Education, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250353, China.
| | - Fangong Kong
- State Key Laboratory of Biobased Material and Green Papermaking, Key Laboratory of Pulp & Paper Science and Technology of Shandong Province, Ministry of Education, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250353, China.
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Batterman S, Grant-Alfieri A, Seo SH. Low level exposure to hydrogen sulfide: a review of emissions, community exposure, health effects, and exposure guidelines. Crit Rev Toxicol 2023; 53:244-295. [PMID: 37431804 PMCID: PMC10395451 DOI: 10.1080/10408444.2023.2229925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 06/19/2023] [Accepted: 06/19/2023] [Indexed: 07/12/2023]
Abstract
Hydrogen sulfide (H2S) is a toxic gas that is well-known for its acute health risks in occupational settings, but less is known about effects of chronic and low-level exposures. This critical review investigates toxicological and experimental studies, exposure sources, standards, and epidemiological studies pertaining to chronic exposure to H2S from both natural and anthropogenic sources. H2S releases, while poorly documented, appear to have increased in recent years from oil and gas and possibly other facilities. Chronic exposures below 10 ppm have long been associated with odor aversion, ocular, nasal, respiratory and neurological effects. However, exposure to much lower levels, below 0.03 ppm (30 ppb), has been associated with increased prevalence of neurological effects, and increments below 0.001 ppm (1 ppb) in H2S concentrations have been associated with ocular, nasal, and respiratory effects. Many of the studies in the epidemiological literature are limited by exposure measurement error, co-pollutant exposures and potential confounding, small sample size, and concerns of representativeness, and studies have yet to consider vulnerable populations. Long-term community-based studies are needed to confirm the low concentration findings and to refine exposure guidelines. Revised guidelines that incorporate both short- and long-term limits are needed to protect communities, especially sensitive populations living near H2S sources.
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Affiliation(s)
- Stuart Batterman
- Department of Environmental Health Sciences, School of Public Health, University of Michigan, Ann Arbor, MI, 48109, United States
| | - Amelia Grant-Alfieri
- Department of Environmental Health Sciences, School of Public Health, University of Michigan, Ann Arbor, MI, 48109, United States
| | - Sung-Hee Seo
- Department of Environmental Health Sciences, School of Public Health, University of Michigan, Ann Arbor, MI, 48109, United States
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Santana Maldonado CM, Kim DS, Purnell B, Li R, Buchanan GF, Smith J, Thedens DR, Gauger P, Rumbeiha WK. Acute hydrogen sulfide-induced neurochemical and morphological changes in the brainstem. Toxicology 2023; 485:153424. [PMID: 36610655 DOI: 10.1016/j.tox.2023.153424] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 12/31/2022] [Accepted: 01/03/2023] [Indexed: 01/06/2023]
Abstract
Hydrogen sulfide (H2S) is a toxin affecting the cardiovascular, respiratory, and central nervous systems. Acute H2S exposure is associated with a high rate of mortality and morbidity. The precise pathophysiology of H2S-induced death is a controversial topic; however, inhibition of the respiratory center in the brainstem is commonly cited as a cause of death. There is a knowledge gap on toxicity and toxic mechanisms of acute H2S poisoning on the brainstem, a brain region responsible for regulating many reflective and vital functions. Serotonin (5-HT), dopamine (DA), and γ-aminobutyric acid (GABA) play a role in maintaining a normal stable respiratory rhythmicity. We hypothesized that the inhibitory respiratory effects of H2S poisoning are mediated by 5-HT in the respiratory center of the brainstem. Male C57BL/6 mice were exposed once to an LCt50 concentration of H2S (1000 ppm). Batches of surviving mice were euthanized at 5 min, 2 h, 12 h, 24 h, 72 h, and on day 7 post-exposure. Pulmonary function, vigilance state, and mortality were monitored during exposure. The brainstem was analyzed for DA, 3,4-dehydroxyphenyl acetic acid (DOPAC), 5-HT, 5-hydroxyindoleatic acid (5-HIAA), norepinephrine (NE), GABA, glutamate, and glycine using HPLC. Enzymatic activities of monoamine oxidases (MAO) were also measured in the brainstem using commercial kits. Neurodegeneration was assessed using immunohistochemistry and magnetic resonance imaging. Results showed that DA and DOPAC were significantly increased at 5 min post H2S exposure. However, by 2 h DA returned to normal. Activities of MAO were significantly increased at 5 min and 2 h post-exposure. In contrast, NE was significantly decreased at 5 min and 2 h post-exposure. Glutamate was overly sensitive to H2S-induced toxicity manifesting a time-dependent concentration reduction throughout the 7 day duration of the study. Remarkably, there were no changes in 5-HT, 5-HIAA, glycine, or GABA concentrations. Cytochrome c oxidase activity was inhibited but recovered by 24 h. Neurodegeneration was observed starting at 72 h post H2S exposure in select brainstem regions. We conclude that acute H2S exposure causes differential effects on brainstem neurotransmitters. H2S also induces neurodegeneration and biochemical changes in the brainstem. Additional work is needed to fully understand the implications of both the short- and long-term effects of acute H2S poisoning on vital functions regulated by the brainstem.
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Affiliation(s)
- Cristina M Santana Maldonado
- Veterinary Diagnostic Production and Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, IA 50010, USA.
| | - Dong-Suk Kim
- Department of Molecular Biosciences, University of California, Davis, CA 95616, USA.
| | - Benton Purnell
- Department of Neurology, University of Iowa, Iowa City, IA 52242, USA.
| | - Rui Li
- Department of Neurology, University of Iowa, Iowa City, IA 52242, USA.
| | - Gordon F Buchanan
- Department of Neurology, University of Iowa, Iowa City, IA 52242, USA.
| | - Jodi Smith
- Veterinary Pathology, College of Veterinary Medicine, Iowa State University, Ames, IA 50010, USA.
| | - Daniel R Thedens
- Seamans Center for the Engineering Arts and Sciences, Iowa City, IA 52242, USA.
| | - Phillip Gauger
- Veterinary Diagnostic Production and Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, IA 50010, USA.
| | - Wilson K Rumbeiha
- Department of Molecular Biosciences, University of California, Davis, CA 95616, USA.
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Abstract
Although hydrogen sulfide (H2S) is an endogenous signaling molecule with antioxidant properties, it is also cytotoxic by potently inhibiting cytochrome c oxidase and mitochondrial respiration. Paradoxically, the primary route of H2S detoxification is thought to occur inside the mitochondrial matrix via a series of relatively slow enzymatic reactions that are unlikely to compete with its rapid inhibition of cytochrome c oxidase. Therefore, alternative or complementary cellular mechanisms of H2S detoxification are predicted to exist. Here, superoxide dismutase [Cu-Zn] (SOD1) is shown to be an efficient H2S oxidase that has an essential role in limiting cytotoxicity from endogenous and exogenous sulfide. Decreased SOD1 expression resulted in increased sensitivity to H2S toxicity in yeast and human cells, while increased SOD1 expression enhanced tolerance to H2S. SOD1 rapidly converted H2S to sulfate under conditions of limiting sulfide; however, when sulfide was in molar excess, SOD1 catalyzed the formation of per- and polysulfides, which induce cellular thiol oxidation. Furthermore, in SOD1-deficient cells, elevated levels of reactive oxygen species catalyzed sulfide oxidation to per- and polysulfides. These data reveal that a fundamental function of SOD1 is to regulate H2S and related reactive sulfur species.
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Affiliation(s)
- Christopher H. Switzer
- William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, LondonEC1M 6BQ, United Kingdom
| | - Shingo Kasamatsu
- Department of Biological Chemistry, Graduate School of Science, Osaka Metropolitan University, Osaka599-8531, Japan
| | - Hideshi Ihara
- Department of Biological Chemistry, Graduate School of Science, Osaka Metropolitan University, Osaka599-8531, Japan
| | - Philip Eaton
- William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, LondonEC1M 6BQ, United Kingdom
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Kaya C, Ugurlar F, Ashraf M, El-Sheikh MA, Bajguz A, Ahmad P. The participation of nitric oxide in hydrogen sulphide-mediated chromium tolerance in pepper (Capsicum annuum L) plants by modulating subcellular distribution of chromium and the ascorbate-glutathione cycle. Environ Pollut 2022; 313:120229. [PMID: 36152705 DOI: 10.1016/j.envpol.2022.120229] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Revised: 08/02/2022] [Accepted: 09/17/2022] [Indexed: 06/16/2023]
Abstract
The promising response of chromium-stressed (Cr(VI)-S) plants to hydrogen sulphide (H2S) has been observed, but the participation of nitric oxide (NO) synthesis in H2S-induced Cr(VI)-S tolerance in plants remains to be elucidated. It was aimed to assess the participation of NO in H2S-mediated Cr(VI)-S tolerance by modulating subcellular distribution of Cr and the ascorbate-glutathione (AsA-GSH) cycle in the pepper seedlings. Two weeks following germination, plants were exposed to control (no Cr) or Cr(VI)-S (50 μM K2Cr2O7) for further two weeks. The Cr(VI)-S-plants grown in nutrient solution were supplied with 200 μM sodium hydrosulphide (NaHS, donor of H2S), or NaHS plus 100 μM sodium nitroprusside (SNP, a donor of NO). Chromium stress suppressed plant growth and leaf water status, while elevated proline content, oxidative stress, and the activities of AsA-GSH related enzymes, as well as endogenous H2S and NO contents. The supplementation of NaHS increased Cr accumulation at root cell walls and vacuoles of leaves as soluble fraction to reduce its toxicity. Furthermore it limited oxidative stress, improved plant growth, modulated leaf water status, and the AsA-GSH cycle-associated enzymes' activities, as well as it further improved H2S and NO contents. The positive effect of NaHS was found to be augmented on those parameters in the CrS-plants by the SNP supplementation. However, 0.1 mM cPTIO, the scavenger of NO, inverted the prominent effect of NaHS by decreasing NO content. The supplementation of SNP along with NaHS + cPTIO reinstalled the positive effect of NaHS by restoring NO content, which suggested that NO might have a potential role in H2S-induced tolerance to Cr(VI)-S in pepper plants by stepping up the AsA-GSH cycle.
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Affiliation(s)
- Cengiz Kaya
- Soil Science and Plant Nutrition Department, Harran University, Sanliurfa, Turkey
| | - Ferhat Ugurlar
- Soil Science and Plant Nutrition Department, Harran University, Sanliurfa, Turkey
| | - Muhammed Ashraf
- Institute of Molecular Biology and Biotechnology, The University of Lahore, Pakistan
| | - Mohamed A El-Sheikh
- Botany and Microbiology Department, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Andrzej Bajguz
- Department of Biology and Ecology of Plants, Faculty of Biology University of Bialystok, Konstantego Ciolkowskiego 1J, 15-245, Bialystok, Poland
| | - Parvaiz Ahmad
- Department of Botany, GDC Pulwama, 192301, Jammu and Kashmir, India.
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Haouzi P, MacCann M, Brenner M, Mahon S, Bebarta VS, Chan A, Judenherc-Haouzi A, Tubbs N, Boss GR. Treatment of life-threatening H2S intoxication: Lessons from the trapping agent tetranitrocobinamide. Environ Toxicol Pharmacol 2022; 96:103998. [PMID: 36228991 DOI: 10.1016/j.etap.2022.103998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 10/05/2022] [Accepted: 10/07/2022] [Indexed: 06/16/2023]
Abstract
We sought to evaluate the efficacy of trapping free hydrogen sulfide (H2S) following severe H2S intoxication. Sodium hydrosulfide solution (NaHS, 20 mg/kg) was administered intraperitoneally in 69 freely moving rats. In a first group (protocol 1), 40 rats were randomly assigned to receive saline (n = 20) or the cobalt compound tetranitrocobinamide (TNCbi) (n = 20, 75 mg/kg iv), one minute into coma, when free H2S was still present in the blood. A second group of 27 rats received TNCbi or saline, following epinephrine, 5 min into coma, when the concentration of free H2S has drastically decreased in the blood. In protocol 1, TNCbi significantly increased immediate survival (65 vs 20 %, p < 0.01) while in protocol 2, administration of TNCbi led to the same outcome as untreated animals. We hypothesize that the decreased efficacy of TNCbi with time likely reflects the rapid spontaneous disappearance of the pool of free H2S in the blood following H2S exposure.
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Affiliation(s)
- Philippe Haouzi
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Pennsylvania State University, College of Medicine, Hershey, PA, USA.
| | - Marissa MacCann
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Pennsylvania State University, College of Medicine, Hershey, PA, USA
| | - Matthew Brenner
- Beckman Laser Institute and Medical Clinic, University of California, Irvine, CA, USA; Division of Pulmonary and Critical Care Medicine, Department of Medicine, University of California, Irvine, CA, USA
| | - Sari Mahon
- Beckman Laser Institute and Medical Clinic, University of California, Irvine, CA, USA
| | - Vikhyat S Bebarta
- Department of Emergency Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA; Rocky Mountain Poison and Drug Center, Denver Health and Hospital Authority, Denver, CO, USA
| | - Adriano Chan
- Department of Medicine, University of California, San Diego, La Jolla, CA, USA
| | - Annick Judenherc-Haouzi
- Heart and Vascular Institute, Department of Medicine, Pennsylvania State University, College of Medicine, Hershey, PA, USA
| | - Nicole Tubbs
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Pennsylvania State University, College of Medicine, Hershey, PA, USA
| | - Gerry R Boss
- Department of Medicine, University of California, San Diego, La Jolla, CA, USA
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Singh SK, Suhel M, Husain T, Prasad SM, Singh VP. Hydrogen sulfide manages hexavalent chromium toxicity in wheat and rice seedlings: The role of sulfur assimilation and ascorbate-glutathione cycle. Environ Pollut 2022; 307:119509. [PMID: 35609844 DOI: 10.1016/j.envpol.2022.119509] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 05/09/2022] [Accepted: 05/17/2022] [Indexed: 05/21/2023]
Abstract
The role of hydrogen sulfide (H2S) is well known in the regulation of abiotic stress such as toxic heavy metal. However, mechanism(s) lying behind this amelioration are still poorly known. Consequently, the present study was focused on the regulation/mitigation of hexavalent chromium (Cr(VI) toxicity by the application of H2S in wheat and rice seedlings. Cr(VI) induced accumulation of reactive oxygen species and caused protein oxidation which negatively affect the plant growth in both the cereal crops. We noticed that Cr(VI) toxicity reduced length of wheat and rice seedlings by 21% and 19%, respectively. These reductions in length of both the cereal crops were positively related with the down-regulation in the ascorbate-glutathione cycle, and were recovered by the application NaHS (a donor of H2S). Though exposure of Cr(VI) slightly stimulated sulfur assimilation but addition of H2S further caused enhancement in sulfur assimilation, suggesting its role in the H2S-mediated Cr(VI) stress tolerance in studied cereal crops. Overall, the results revealed that H2S renders Cr(VI) stress tolerance in wheat and rice seedlings by stimulating sulfur assimilation and ascorbate-glutathione which collectively reduce protein oxidation and thus, improved growth was observed.
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Affiliation(s)
- Sani Kumar Singh
- Ranjan Plant Physiology and Biochemistry Laboratory, Department of Botany, University of Allahabad, Prayagraj, 211002, India
| | - Mohammad Suhel
- Ranjan Plant Physiology and Biochemistry Laboratory, Department of Botany, University of Allahabad, Prayagraj, 211002, India
| | - Tajammul Husain
- Ranjan Plant Physiology and Biochemistry Laboratory, Department of Botany, University of Allahabad, Prayagraj, 211002, India
| | - Sheo Mohan Prasad
- Ranjan Plant Physiology and Biochemistry Laboratory, Department of Botany, University of Allahabad, Prayagraj, 211002, India.
| | - Vijay Pratap Singh
- Plant Physiology Laboratory, Department of Botany, C.M.P. Degree College, A Constituent Post Graduate College of University of Allahabad, Prayagraj, 211002, India
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12
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Liu Z, Chen L, Gao X, Zou R, Meng Q, Fu Q, Xie Y, Miao Q, Chen L, Tang X, Zhang S, Zhang H, Schroyen M. Quantitative proteomics reveals tissue-specific toxic mechanisms for acute hydrogen sulfide-induced injury of diverse organs in pig. Sci Total Environ 2022; 806:150365. [PMID: 34555611 DOI: 10.1016/j.scitotenv.2021.150365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Revised: 09/09/2021] [Accepted: 09/12/2021] [Indexed: 06/13/2023]
Abstract
Hydrogen sulfide (H2S) is a highly toxic gas in many environmental and occupational places. It can induce multiple organ injuries particularly in lung, trachea and liver, but the relevant mechanisms remain poorly understood. In this study, we used a TMT-based discovery proteomics to identify key proteins and correlated molecular pathways involved in the pathogenesis of acute H2S-induced toxicity in porcine lung, trachea and liver tissues. Pigs were subjected to acute inhalation exposure of up to 250 ppm of H2S for 5 h for the first time. Changes in hematology and biochemical indexes, serum inflammatory cytokines and histopathology demonstrated that acute H2S exposure induced organs inflammatory injury and dysfunction in the porcine lung, trachea and liver. The proteomic data showed 51, 99 and 84 proteins that were significantly altered in lung, trachea and liver, respectively. Gene ontology (GO) annotation, KEGG pathway and protein-protein interaction (PPI) network analysis revealed that acute H2S exposure affected the three organs via different mechanisms that were relatively similar between lung and trachea. Further analysis showed that acute H2S exposure caused inflammatory damages in the porcine lung and trachea through activating complement and coagulation cascades, and regulating the hyaluronan metabolic process. Whereas antigen presentation was found in the lung but oxidative stress and cell apoptosis was observed exclusively in the trachea. In the liver, an induced dysfunction was associated with protein processing in the endoplasmic reticulum and lipid metabolism. Further validation of some H2S responsive proteins using western blotting indicated that our proteomics data were highly reliable. Collectively, these findings provide insight into toxic molecular mechanisms that could potentially be targeted for therapeutic intervention for acute H2S intoxication.
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Affiliation(s)
- Zhen Liu
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China; Precision Livestock and Nutrition Unit, Gembloux Agro-Bio Tech, TERRA Teaching and Research Centre, University of Liège, Passage des Déportés 2, Gembloux 5030, Belgium
| | - Liang Chen
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Xin Gao
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China
| | - Ruixia Zou
- Graduate School, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Qingshi Meng
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Qin Fu
- Proteomics and Metabolomics Facility, Institute of Biotechnology, Cornell University, Ithaca, NY 14853, USA
| | - Yanjiao Xie
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Qixiang Miao
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Lei Chen
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Xiangfang Tang
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
| | - Sheng Zhang
- Proteomics and Metabolomics Facility, Institute of Biotechnology, Cornell University, Ithaca, NY 14853, USA
| | - Hongfu Zhang
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
| | - Martine Schroyen
- Precision Livestock and Nutrition Unit, Gembloux Agro-Bio Tech, TERRA Teaching and Research Centre, University of Liège, Passage des Déportés 2, Gembloux 5030, Belgium
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13
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Mao Z, Huang Y, Li B, Tomoya K, Shinmori H, Zeng X, Gu Z, Yao J. Hydrogen sulfide as a potent scavenger of toxicant acrolein. Ecotoxicol Environ Saf 2022; 229:113111. [PMID: 34952378 DOI: 10.1016/j.ecoenv.2021.113111] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 12/07/2021] [Accepted: 12/19/2021] [Indexed: 06/14/2023]
Abstract
Acrolein (ACR) is a metabolic byproduct in vivo and a ubiquitous environmental toxicant. It is implicated in the initiation and development of many diseases through multiple mechanisms, including the induction of oxidative stress. Currently, our understanding of the body defense mechanism against ACR toxicity is still limited. Given that hydrogen sulfide (H2S) has strong antioxidative actions and it shares several properties of ACR scavenger glutathione (GSH), we, therefore, tested whether H2S could be involved in ACR detoxification. Taking advantage of two cell lines that produced different levels of endogenous H2S, we found that the severity of ACR toxicity was reversely correlated with H2S-producing ability. In further support of the role of H2S, supplementing cells with exogenous H2S increased cell resistance to ACR, whereas inhibition of endogenous H2S sensitized cells to ACR. In vivo experiments showed that inhibition of endogenous H2S with CSE inhibitor markedly increased mouse susceptibility to the toxicity of cyclophosphamide and ACR, as evidenced by the increased mortality and worsened organ injury. Further analysis revealed that H2S directly reacted with ACR. It promoted ACR clearance and prevented ACR-initiated protein carbonylation. Collectively, this study characterized H2S as a presently unrecognized endogenous scavenger of ACR and suggested that H2S can be exploited to prevent and treat ACR-associated diseases.
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Affiliation(s)
- Zhimin Mao
- Institute of Reproductive Medicine, Nantong University, Nantong, China; Division of Molecular Signaling, Department of the Advanced Biomedical Research, Interdisciplinary Graduate School of Medicine, University of Yamanashi, Kofu, Japan.
| | - Yanru Huang
- Division of Molecular Signaling, Department of the Advanced Biomedical Research, Interdisciplinary Graduate School of Medicine, University of Yamanashi, Kofu, Japan
| | - Bingqian Li
- Institute of Reproductive Medicine, Nantong University, Nantong, China
| | - Kazutoshi Tomoya
- Department of Biotechnology, Faculty of Life and Environmental Sciences, Graduate Faculty of Interdisciplinary Research, University of Yamanashi, Kofu, Japan
| | - Hideyuki Shinmori
- Department of Biotechnology, Faculty of Life and Environmental Sciences, Graduate Faculty of Interdisciplinary Research, University of Yamanashi, Kofu, Japan
| | - Xuhui Zeng
- Institute of Reproductive Medicine, Nantong University, Nantong, China
| | - Zhifeng Gu
- Department of Rheumatology, The Affiliated Hospital of Nantong University, Nantong, China
| | - Jian Yao
- Division of Molecular Signaling, Department of the Advanced Biomedical Research, Interdisciplinary Graduate School of Medicine, University of Yamanashi, Kofu, Japan.
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14
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Mishra V, Singh VP. Implication of nitric oxide and hydrogen sulfide signalling in alleviating arsenate stress in rice seedlings. Environ Pollut 2021; 291:117958. [PMID: 34547656 DOI: 10.1016/j.envpol.2021.117958] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 07/13/2021] [Accepted: 08/10/2021] [Indexed: 06/13/2023]
Abstract
Nitric oxide (NO) and hydrogen sulfide (H2S) since their discovery have proven to be game changing molecules in alleviating abiotic stress. They individually play role in plant stress management while the pathways of stress regulation through their crosstalk remain elusive. The current study focuses on investigating the interplay of NO and H2S signalling in the amelioration of arsenate As(V) toxicity in rice seedlings and managing its growth, photosynthesis, sucrose and proline metabolism. Results show that As(V) exposure declined fresh weight (biomass) due to induced cell death in root tips. Moreover, a diminished RuBisCO activity, decline in starch content with high proline dehydrogenase activity and increased total soluble sugars content was observed which further intensified in the presence of Nω-nitro-L-arginine methyl ester hydrochloride (L-NAME, an inhibitor of nitric oxide synthase-like activity), and DL-propargylglycine (PAG, an inhibitor of cysteine desulfhydrase activity). These results correlate with lower endogenous level of NO and H2S. Addition of L-NAME increased As(V) toxicity. Interestingly, addition of SNP reverses effect of L-NAME suggesting that endogenous NO has a role in mitigating As(V) toxicity. Similarly, exogenous H2S also significantly alleviated As(V) stress, while PAG further stimulated As(V) toxicity. Furthermore, application of H2S in the presence of L - NAME and NO in the presence of PAG could still mitigate As(V) toxicity, suggesting that endogenous NO and H2S could independently mitigate As(V) stress.
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Affiliation(s)
- Vipul Mishra
- Plant Physiology Laboratory, Department of Botany, C.M.P. Degree College, A Constituent Post Graduate College of University of Allahabad, Prayagraj, 211002, India
| | - Vijay Pratap Singh
- Plant Physiology Laboratory, Department of Botany, C.M.P. Degree College, A Constituent Post Graduate College of University of Allahabad, Prayagraj, 211002, India.
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15
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Chi Q, Hu X, Liu Z, Han Y, Tao D, Xu S, Li S. H 2S exposure induces cell death in the broiler thymus via the ROS-initiated JNK/MST1/FOXO1 pathway. Ecotoxicol Environ Saf 2021; 222:112488. [PMID: 34246945 DOI: 10.1016/j.ecoenv.2021.112488] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 06/28/2021] [Accepted: 07/01/2021] [Indexed: 06/13/2023]
Abstract
Hydrogen sulfide (H2S) is a common toxic gas in chicken houses that endangers the health of poultry. Harbin has a cold climate in winter, and the conflict between heat preservation and ventilation in poultry houses is obvious. In this study, we investigated the H2S content in chicken houses during winter in Harbin and found that the H2S concentration exceeded the national standard in individual chicken houses. Then, a model of H2S exposure was established in an environmental simulation chamber. We also developed a NaHS exposure model of chicken peripheral blood lymphocytes in vitro. Proteomics analysis was used to reveal the toxicology of thymus injury in broilers, the FOXO signaling pathway was determined to be significantly enriched, ROS bursts and JNK/MST1/FOXO1 pathway activation induced by H2S exposure were detected, and ROS played an important switch role in the JNK/MST1/FOXO1 pathway. In addition, H2S exposure-induced thymus cell death involved immune dysregulation. Overall, the present study adds data for H2S contents in chicken houses, provides new findings for the mechanism of H2S poisoning and reveals a new regulatory pathway in immune injury.
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Affiliation(s)
- Qianru Chi
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Xueyuan Hu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Zhaoyi Liu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Yanfei Han
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Dayong Tao
- College of Animal Science, Tarim University, Alar, Xinjiang Uygur Autonomous Region 843300, China
| | - Shiwen Xu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, Heilongjiang 150030, China; College of Animal Science, Tarim University, Alar, Xinjiang Uygur Autonomous Region 843300, China
| | - Shu Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, Heilongjiang 150030, China.
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16
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Song N, Li X, Cui Y, Zhang T, Xu S, Li S. Hydrogen sulfide exposure induces pyroptosis in the trachea of broilers via the regulatory effect of circRNA-17828/miR-6631-5p/DUSP6 crosstalk on ROS production. J Hazard Mater 2021; 418:126172. [PMID: 34098264 DOI: 10.1016/j.jhazmat.2021.126172] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 04/08/2021] [Accepted: 05/17/2021] [Indexed: 06/12/2023]
Abstract
Hydrogen sulfide (H2S) is an air pollutant to cause tracheal injury. Pyroptosis is responsible for tissue injury through reactive oxygen species (ROS) production. Competitive endogenous RNAs (ceRNAs) chelate microRNAs and reduce their inhibitory effect on other transcripts, thus affecting ROS levels and pyroptosis. However, it is not clear how H2S regulates pyroptosis via the ceRNA axis. Therefore, we established a broilers model of H2S exposure for 42 days to assess pyroptosis and obtain a ceRNA network by immunohistochemistry and RNA sequencing. We detected pyroptosis induced by H2S and verified circRNA-IGLL1-17828/miR-6631-5p/DUSP6 axis by a double luciferase reporter assay. We also measured ROS levels and the expression of pyroptotic indicators such as (Caspase1) Casp-1, Interleukin 1β (IL-1β) and Interleukin 1β (IL-18). miR-6631-5p knockdown decreased pyroptotic indicators induced by H2S. Overexpression of miR-6631-5p or DUSP6 knockdown stimulated ROS generation and upregulated pyroptotic indicators. N-acetyl-L-cysteine (NAC) decreased pyroptotic indicators and ROS levels both induced by miR-6631-5p. Moreover, circRNA-IGLL1-17828, participated in intermolecular competition as a ceRNA of DUSP6. In conclusion, circRNA-IGLL1-17828/miR-6631-5p/DUSP6 crosstalk regulated H2S-induced pyroptosis in broilers trachea via ROS generation. This is the first study to reveal regulation mechanism of circRNA-related CeRNAs on pyroptosis induced by H2S, providing important reference for environmental toxicology.
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Affiliation(s)
- Nuan Song
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Xiaojing Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Yuan Cui
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Tianyi Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Shiwen Xu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China.
| | - Shu Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China.
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17
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Xueyuan H, Qianru C, Zhaoyi L, Dayong T, Yu W, Yimei C, Shu L. Transcriptome analysis reveals that hydrogen sulfide exposure suppresses cell proliferation and induces apoptosis through ciR-PTPN23/miR-15a/E2F3 signaling in broiler thymus. Environ Pollut 2021; 284:117466. [PMID: 34062439 DOI: 10.1016/j.envpol.2021.117466] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 05/23/2021] [Accepted: 05/24/2021] [Indexed: 06/12/2023]
Abstract
The immune organs, like thymus, are one of the targets of hydrogen sulfide (H2S). Previously we reported that H2S induced the differential expression of mRNAs that implicating apoptosis in thymus, however, the roles of noncoding RNAs (ncRNAs) in H2S-induced thymus injury are still unknown. Pollution gases could alter the expression of ncRNAs, which have been shown to play important roles in many physiological and pathophysiological processes, including immune activity. This study revealed that H2S exposure induced 9 differentially expressed circRNAs and 15 differentially expressed miRNAs in chicken thymus. Furthermore, the circRNA - miRNA - mRNA network was constructed. We discovered that circR-PTPN23 - miR-15a - E2F3 was involved in the cell cycle and apoptosis. Further, an in vitro H2S exposure model was established using HD11 cell line and demonstrated that H2S suppressed cell proliferation and induced apoptosis. Moreover, ciR-PTPN23 and E2F3 were downregulated, but miR-15a was upregulated in both the thymus and HD11 cell line after H2S exposure. Bioinformatics analysis revealed that ciR-PTPN23 directly bound to miR-15a and that E2F3 was the target gene of miR-15a. Knocking down ciR-PTPN23 suppressed HD11 proliferation and caused G1 arrest and apoptosis, however, this phenomenon could be partially reversed by ciR-PTPN23 overexpression or miR-15a silencing. In summary, the ciR-PTPN23 - miR-15a - E2F3 axis was involved in H2S-induced cell proliferation suppression and apoptosis.
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Affiliation(s)
- Hu Xueyuan
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China; College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, 266109, China
| | - Chi Qianru
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
| | - Liu Zhaoyi
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
| | - Tao Dayong
- College of Animal Science, Tarim University, Alar, 843300, China
| | - Wang Yu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
| | - Cong Yimei
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
| | - Li Shu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China.
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18
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Rai P, Singh VP, Peralta-Videa J, Tripathi DK, Sharma S, Corpas FJ. Hydrogen sulfide (H 2S) underpins the beneficial silicon effects against the copper oxide nanoparticles (CuO NPs) phytotoxicity in Oryza sativa seedlings. J Hazard Mater 2021; 415:124907. [PMID: 34088169 DOI: 10.1016/j.jhazmat.2020.124907] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 11/14/2020] [Accepted: 12/17/2020] [Indexed: 06/12/2023]
Abstract
Nanoparticle-pollution has associated severe negative effects on crop productivity. Hence, methods are needed to alleviate nano-toxicity in crop plants. The present study aims to evaluate if the exogenous hydrogen sulfide (H2S) application in combination with silicon (Si) could palliate the harmful effects of copper oxide nanoparticles (CuO NPs). Fifteen day-old rice (Oryza sativa L.) seedlings were used as a model plant. The results indicate that simultaneous exogenous addition of 10 μM Si and 100 μM NaHS (as an H2S donor) provided tolerance and enhanced defence mechanism of the rice seedlings against 100 μM CuO NPs. Thus, it was observed in terms of their growth, photosynthetic pigments, antioxidant enzyme activities, the content of non-enzymatic components, chlorophyll fluorescence and up-regulation of antioxidant genes. Si and NaHS stimulated gene expression of silicon (Lsi1 and Lsi2) and auxin (PIN5 and PIN10) transporters. Taken together, data indicate that H2S underpins the beneficial Si effects in rice seedlings against the oxidative stress triggers by CuO NPs, and stimulation of enzymatic components of the ascorbate-glutathione cycle being the main factor for the beneficial effects triggered by the couple of Si and H2S. Therefore, it could be concluded that the simultaneous application of Si and H2S promote the resilience of the rice seedlings against the oxidative stress induced by CuO NPs.
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Affiliation(s)
- Padmaja Rai
- Department of Biotechnology, Motilal Nehru National Institute of Technology Allahabad, Prayagraj 211004, UP, India
| | - Vijay Pratap Singh
- Plant Physiology Laboratory, Department of Botany, C.M.P. Degree College, A Constituent Post Graduate College of University of Allahabad, Prayagraj 211002, India
| | - Jose Peralta-Videa
- Department of Chemistry and Biochemistry, The University of Texas at El Paso, 500 West University Ave., El Paso, TX 79968, United States
| | - Durgesh Kumar Tripathi
- Amity Institute of Organic Agriculture, Amity University Uttar Pradesh, Sector-125, Noida 201313, India
| | - Shivesh Sharma
- Department of Biotechnology, Motilal Nehru National Institute of Technology Allahabad, Prayagraj 211004, UP, India.
| | - Francisco J Corpas
- Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, Spanish National Research Council (CSIC), C/ Profesor Albareda, 1, 18008 Granada, Spain
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19
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Song N, Wang W, Wang Y, Guan Y, Xu S, Guo MY. Hydrogen sulfide of air induces macrophage extracellular traps to aggravate inflammatory injury via the regulation of miR-15b-5p on MAPK and insulin signals in trachea of chickens. Sci Total Environ 2021; 771:145407. [PMID: 33548704 DOI: 10.1016/j.scitotenv.2021.145407] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 01/16/2021] [Accepted: 01/20/2021] [Indexed: 06/12/2023]
Abstract
Hydrogen sulfide (H2S) is an environmental contaminant to cause the airway damage. The release of macrophage extracellular traps (METs) is the mechanism of immune protection to harmful stimulation via microRNAs, but excessive METs cause the injury. However, few studies have attempted to interpret the mechanism of an organism injury due to H2S via METs in chickens. Here, we investigated the transcriptome profiles, pathological morphologic changes and METs release from chicken trachea after H2S exposure. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis revealed that 10 differentially expressed genes were related to the METs release, the MAPK and insulin signaling pathways. Morphological and immunofluorescence analysis showed that H2S caused airway injury and MET release. H2S activated the targeting effect of miRNA-15b-5p on activating transcription factor 2 (ATF2). Western blotting and real time quantitative PCR results showed that H2S down-regulated the levels of dual specificity protein phosophatase1 (DUSP1) but up-regulated p38 MAP Kinase (p38) in the MAPK signal pathway. And the expression of phosphoinositide-dependent protein kinase 1 (PDK1), serine/threonine kinase (Akt), and protein kinase ζ subtypes (PKCζ) in the insulin signal pathway were increased after H2S exposure. These promoted the release of myeloperoxidase (MPO) and degradation histone 4 (H4) to induce the release of METs. Taken together, miR-15b-5p targeted ATF2 to mediate METs release, which triggered trachea inflammatory injury via MAPK and insulin signals after H2S exposure. These results will provide new insights into the toxicological mechanisms of H2S and environmental ecotoxicology.
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Affiliation(s)
- Nuan Song
- College of Veterinary Medicine, Northeast Agricultural University; Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Harbin 150030, China
| | - Wei Wang
- College of Veterinary Medicine, Northeast Agricultural University; Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Harbin 150030, China
| | - Yue Wang
- College of Veterinary Medicine, Northeast Agricultural University; Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Harbin 150030, China
| | - Yalin Guan
- College of Life Science, Northeast Agricultural University, Harbin 150030, China
| | - Shiwen Xu
- College of Veterinary Medicine, Northeast Agricultural University; Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Harbin 150030, China
| | - Meng-Yao Guo
- College of Veterinary Medicine, Northeast Agricultural University; Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Harbin 150030, China.
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20
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Ren M, Xu Q, Bai Y, Wang S, Kong F. Construction of a dual-response fluorescent probe for copper (II) ions and hydrogen sulfide (H 2S) detection in cells and its application in exploring the increased copper-dependent cytotoxicity in present of H 2S. Spectrochim Acta A Mol Biomol Spectrosc 2021; 249:119299. [PMID: 33341745 DOI: 10.1016/j.saa.2020.119299] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Revised: 11/27/2020] [Accepted: 11/28/2020] [Indexed: 06/12/2023]
Abstract
Multiple types of metal ions and active small molecules (reactive nitrogen species, reactive oxygen species, reactive sulfur species, etc.) exist in living organisms. They have connections to each other and can interact and/or interfere with each other. To investigate the relationship of metal ions and active small molecules in living cells, it is necessary and critical to develop molecular tools that can track two kinds of associated certain metal ions and reactive molecules with multiple fluorescence signals. However, this is a challenging task that requires an ingenious molecular design to achieve this goal. Here, we present a fluorescent probe (D-CN) that can offer fluorescence imaging of H2S and copper (II) ions with different response signals. Recognition of H2S and Cu (II) by the new probe can result in green and red emissions, respectively, providing different signal responses to the two substances in living cells and zebrafish. In addition, we used this probe to visually prove that the cytotoxicity of copper ions in living cells increases in the presence of hydrogen sulfide and could lead to cell apoptosis.
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Affiliation(s)
- Mingguang Ren
- Key Laboratory of Pulp & Paper Science and Technology of Shandong Province/Ministry of Education, State Key Laboratory of Biobased Material and Green Papermaking, Shandong Academy of Sciences, Qilu University of Technology, Jinan 250353, China.
| | - Qingyu Xu
- Key Laboratory of Pulp & Paper Science and Technology of Shandong Province/Ministry of Education, State Key Laboratory of Biobased Material and Green Papermaking, Shandong Academy of Sciences, Qilu University of Technology, Jinan 250353, China
| | - Yayu Bai
- Key Laboratory of Pulp & Paper Science and Technology of Shandong Province/Ministry of Education, State Key Laboratory of Biobased Material and Green Papermaking, Shandong Academy of Sciences, Qilu University of Technology, Jinan 250353, China
| | - Shoujuan Wang
- Key Laboratory of Pulp & Paper Science and Technology of Shandong Province/Ministry of Education, State Key Laboratory of Biobased Material and Green Papermaking, Shandong Academy of Sciences, Qilu University of Technology, Jinan 250353, China
| | - Fangong Kong
- Key Laboratory of Pulp & Paper Science and Technology of Shandong Province/Ministry of Education, State Key Laboratory of Biobased Material and Green Papermaking, Shandong Academy of Sciences, Qilu University of Technology, Jinan 250353, China.
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21
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Elwood M. The Scientific Basis for Occupational Exposure Limits for Hydrogen Sulphide-A Critical Commentary. Int J Environ Res Public Health 2021; 18:ijerph18062866. [PMID: 33799676 PMCID: PMC8001002 DOI: 10.3390/ijerph18062866] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 03/04/2021] [Accepted: 03/09/2021] [Indexed: 11/16/2022]
Abstract
OBJECTIVES Occupational exposure limits for hydrogen sulphide (H2S) vary considerably; three expert group reports, published from 2006 to 2010, each recommend different limits. Some jurisdictions are considering substantial reductions. METHODS This review assesses the scientific evidence used in these recommendations and presents a new systematic review of human studies from 2006-20, identifying 33 studies. RESULTS The three major reports all give most weight to two sets of studies: of physiological effects in human volunteers, and of effects in the nasal passages of rats and mice. The human studies were done in one laboratory over 20 years ago and give inconsistent results. The breathing style and nasal anatomy of rats and mice would make them more sensitive than humans to inhaled agents. Each expert group applied different uncertainly factors. From these reports and the further literature review, no clear evidence of detrimental health effects from chronic occupational exposures specific to H2S was found. Detailed studies of individuals in communities with natural sources in New Zealand have shown no detrimental effects. Studies in Iceland and Italy show some associations; these and various other small studies need verification. CONCLUSIONS The scientific justification for lowering occupational exposure limits is very limited. There is no clear evidence, based on currently available studies, that lower limits will protect the health of workers further than will the current exposure limits used in most countries. Further review and assessment of relevant evidence is justified before exposure limits are set.
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Affiliation(s)
- Mark Elwood
- Department of Epidemiology & Biostatistics, School of Population Health, University of Auckland, Private Bag 92019, Auckland Mail Centre, Auckland 1142, New Zealand
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22
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Wang HR, Che YH, Wang ZH, Zhang BN, Huang D, Feng F, Ao H. The multiple effects of hydrogen sulfide on cadmium toxicity in tobacco may be interacted with CaM signal transduction. J Hazard Mater 2021; 403:123651. [PMID: 32818834 DOI: 10.1016/j.jhazmat.2020.123651] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 07/17/2020] [Accepted: 08/04/2020] [Indexed: 06/11/2023]
Abstract
Soilless culture experiments with tobacco were conducted to explore how the signal molecule H2S (0.3, 0.6, 0.9, and 1.2 μM) alleviated the toxicity of Cd2+ (50 mg/L). The results suggested that photosynthesis was enhanced as H2S improved the tobacco ΦPSII, ETR, Photo, Cond, and Tr, and that by increasing the NPQ, it consumed considerable amount of energy to enhance plant resistances during Cd2+ exposure. Furthermore, H2S increased the gene transcription of NtSOD3, NtPOD1, and CAT1, to enhance antioxidant enzyme activity, which reduces the generation of the reactive oxygen protective membrane integrity. Additionally, H2S increased the gene expression of the tobacco PC genes, Pr2 and Pr8 promoted the formation of the Cd2+ complexes and transportation to the vacuole, resulting in improved Cd-ATPase gene expression, away from organelles, to alleviate the Cd2+ poison. Furthermore, H2S regulated the relative absorption of K+ and Ca2+, which antagonized the Cd2+, and reduced its transportation to the aboveground plant material. Finally, the expression level of CaM increased with the application of H2S, and was highly correlated with the fitted results of a variety of resistance indicators, thereby indicating that H2S regulatory resistance mechanisms might be associated with Ca2+ signal transduction.
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Affiliation(s)
- Hong-Rui Wang
- College of Life Science, Northeast Forestry University, Harbin, China
| | - Yan-Hui Che
- Key Laboratory of Saline-Alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Science, Northeast Forestry University, Harbin, China
| | - Zi-Han Wang
- Key Laboratory of Saline-Alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Science, Northeast Forestry University, Harbin, China
| | - Bei-Ning Zhang
- Key Laboratory of Saline-Alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Science, Northeast Forestry University, Harbin, China
| | - Dan Huang
- Key Laboratory of Saline-Alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Science, Northeast Forestry University, Harbin, China
| | - Fujuan Feng
- College of Life Science, Northeast Forestry University, Harbin, China.
| | - Hong Ao
- Key Laboratory of Saline-Alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Science, Northeast Forestry University, Harbin, China.
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23
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Kuroda M, Nagasaki T, Koito T, Hongo Y, Yoshida T, Maruyama T, Tsuchida S, Nemoto S, Inoue K. Possible Roles of Hypotaurine and Thiotaurine in the Vesicomyid Clam Phreagena okutanii. Biol Bull 2021; 240:34-40. [PMID: 33730534 DOI: 10.1086/712396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
AbstractVesicomyid clams, which inhabit deep-sea hydrothermal vents and hydrocarbon seeps, are nutritionally dependent on symbiotic, chemoautotrophic bacteria that produce organic matter by using hydrogen sulfide. Vesicomyid clams absorb hydrogen sulfide from the foot and transport it in their hemolymph to symbionts in the gill. However, mechanisms to cope with hydrogen sulfide toxicity are not fully understood. Previous studies on vent-specific invertebrates, including bathymodiolin mussels, suggest that hypotaurine, a precursor of taurine, mitigates hydrogen sulfide toxicity by binding it to bisulfide ion, so as to synthesize thiotaurine. In this study, we cloned cDNAs from the vesicomyid clam Phreagena okutanii for the taurine transporter that transports hypotaurine into cells and for cysteine dioxygenase and cysteine-sulfinate decarboxylase, major enzymes involved in hypotaurine synthesis. Results of reverse-transcription polymerase chain reaction indicate that mRNAs of these three genes are most abundant in the foot, followed by the gill. However, hypotaurine and thiotaurine levels, measured by reverse-phase high-performance liquid chromatography, were low in the foot and high in the gill. In addition, thiotaurine was detected in hemolymph cells. Hypotaurine synthesized in the foot may be transported to the gill after binding to bisulfide ion, possibly by hemolymph cells.
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24
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Guo JM, Xing HJ, Cai JZ, Zhang HF, Xu SW. H 2S exposure-induced oxidative stress promotes LPS-mediated hepatocyte autophagy through the PI3K/AKT/TOR pathway. Ecotoxicol Environ Saf 2021; 209:111801. [PMID: 33383342 DOI: 10.1016/j.ecoenv.2020.111801] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 12/08/2020] [Accepted: 12/09/2020] [Indexed: 06/12/2023]
Abstract
Hydrogen sulfide (H2S), a common air pollutant and toxic gas, is detrimental to organisms and the environment. Exposure to highly concentrated H2S can induce oxidative stress and autophagy. However, the mechanism underlying the liver damage caused by H2S has not been identified. Lipopolysaccharide (LPS), the key component of endotoxin, can induce oxidative stress and autophagy. For this experiment, we used one-day-old chickens as model organisms to evaluate the effects of H2S combined with LPS on oxidative stress and autophagy. The four groups (control group, LPS group, H2S group and H2S-LPS group) were observed by electron microscopy, detected by oxidative stress kit, analyzed by quantitative real-time quantitative PCR, and analyzed by Western blot. We found that the activities of antioxidant enzymes (superoxide dismutase, antioxidant glutathione, catalase, and glutathione peroxidase) decreased in the H2S group compared to those in the control group; however, malondialdehyde levels in the H2S group increased. Molecular-level studies showed that the expression of genes associated with the PI3K/ AKT/ TOR pathways in the H2S group decreased, whereas the expression of other autophagy-related genes (Beclin1, ATG5 and the ratio of LC3-II/ LC3-I) increased compared to that in the control group. These findings suggest that H2S caused oxidative stress and induced autophagy through the PI3K/ AKT/ TOR pathway in chicken liver cells. Additionally, exposure to H2S aggravated LPS-induced oxidative stress and autophagy injury. Capsule: Aerial exposure to H2S can cause oxidative stress in chicken livers and induce autophagy through the PI3K/AKT/TOR pathway, and can aggravate LPS-induced oxidative stress and autophagy.
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Affiliation(s)
- Jin-Ming Guo
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin 150030, PR China
| | - Hou-Juan Xing
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, PR China
| | - Jing-Zeng Cai
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin 150030, PR China
| | - Hong-Fu Zhang
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Shi-Wen Xu
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin 150030, PR China; Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China.
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25
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Lizarazo Salcedo CG, Whitehead L, Perkins JL, Upegui-Rincón S, Guarguati-Ariza J, Quinchía R, Espinosa-Guerra CJ. Management of acute exposure to toxic gases in the oil & gas industry -a practical approach. Arch Environ Occup Health 2020; 76:385-392. [PMID: 33345756 DOI: 10.1080/19338244.2020.1860875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The objective of this work is to present the key elements in the design of emergency management and response plans in scenarios where there has been loss of containment of chemical agents of acute effect focused in the protection of not routinely exposed in a determined occupational environment. To this purpose, a validation of the current criteria for the management of accidental releases is carried out, taking into account hypothetical risk scenarios. The essential elements of the emergency management system are stated, from a systemic perspective and the corresponding risk control actions; recommendations for their implementation are showed, taking as prototype hydrogen sulfide, a highly toxic gas. Non controlled emissions of toxic gases of acute effect from an occupational standpoint represents a priority because of their human and financial high toll. Design and implementation of an appropriate emergency plan for uncontrollable emissions of toxics chemical agents must be addressed.
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Affiliation(s)
| | | | - Jimmy L Perkins
- Houston School of Public Health, University of Texas, San Antonio, TX, USA
| | - Sildrey Upegui-Rincón
- Industrial Engineering Department, Pontificia Universidad Javeriana, Bogotá, Colombia
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26
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Liu Z, Fu Q, Tang S, Xie Y, Meng Q, Tang X, Zhang S, Zhang H, Schroyen M. Proteomics analysis of lung reveals inflammation and cell death induced by atmospheric H 2S exposure in pig. Environ Res 2020; 191:110204. [PMID: 32937176 DOI: 10.1016/j.envres.2020.110204] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 09/03/2020] [Accepted: 09/08/2020] [Indexed: 06/11/2023]
Abstract
Hydrogen sulfide (H2S) is a popular toxic environmental gas and industrial pollutant, which can be harmful to multiple organ systems of both human and livestock, especially to the respiratory system. However, the injury mechanism of H2S exposure to lung remains poorly understood. In this study, pig lung was selected as a H2S exposure model for the first time. We first examined the histological damage and the mRNA expression of pro-inflammatory genes of lung in pigs exposed to H2S. Histopathology change and increased mRNA level of pro-inflammatory cytokines demonstrated that H2S exposure indeed induced inflammatory injury in the porcine lung. We then performed TMT-based quantitative proteomics analysis to probe the injury molecular mechanism. The proteomics results showed that 526 proteins have significant changes in abundance between control and H2S treated swine. Further validation analysis of some H2S responsive proteins using both Real-time quantitative PCR and western blotting demonstrated that proteomics data are reliable. KEGG pathway analysis revealed that these proteins were involved in antigen processing and presentation, complement and coagulation cascade, IL-17 signaling pathway, ferroptosis and necroptosis. Our data suggest that H2S exposure induced immune suppression, inflammatory response and cell death. These findings provide a new insight into the complexity mechanisms of H2S induced lung injury, and offer therapeutic potential as drug targets with a view towards curing the intoxication caused by H2S.
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Affiliation(s)
- Zhen Liu
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, China; Precision Livestock and Nutrition Unit, Gembloux Agro-Bio Tech, TERRA Teaching and Research Centre, Liège University, Passage des Déportés 2, Gembloux, Belgium
| | - Qin Fu
- Proteomics and Metabolomics Facility, Cornell University, Ithaca, NY, 14853, USA
| | - Shanlong Tang
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Yanjiao Xie
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Qingshi Meng
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Xiangfang Tang
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.
| | - Sheng Zhang
- Proteomics and Metabolomics Facility, Cornell University, Ithaca, NY, 14853, USA
| | - Hongfu Zhang
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.
| | - Martine Schroyen
- Precision Livestock and Nutrition Unit, Gembloux Agro-Bio Tech, TERRA Teaching and Research Centre, Liège University, Passage des Déportés 2, Gembloux, Belgium
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27
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Martin KE, Currie S. Hydrogen sulphide sensitivity and tolerance in genetically distinct lineages of a selfing mangrove fish (Kryptolebias marmoratus). J Comp Physiol B 2020; 190:761-770. [PMID: 32789701 DOI: 10.1007/s00360-020-01302-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 07/16/2020] [Accepted: 08/04/2020] [Indexed: 02/06/2023]
Abstract
Mangroves are critical marine habitats. High hydrogen sulphide (H2S) is a feature of these important ecosystems and its toxicity creates a challenge for mangrove inhabitants. The mangrove rivulus (Kryptolebias marmoratus) is a selfing, hermaphroditic, amphibious fish that can survive exposure to 1116 μM H2S in the wild. These fish rely on cutaneous respiration for gas and ion exchange when emerged. We hypothesized that the skin surface is fundamentally important in H2S tolerance in these mangrove fish by limiting H2S permeability. To test our hypothesis, we first disrupted the skin surface in one isogenic lineage and measured H2S tolerance and sensitivity. We increased water H2S concentration until emersion as a measure of the ability to sense and react to H2S, which we refer to as sensitivity. We then determined H2S tolerance by preventing emersion and increasing H2S until loss of equilibrium (LOE). The H2S concentration at emersion and LOE were significantly affected by disrupting the skin surface, providing support that the skin is involved in limiting H2S permeability. Capitalizing on their unique reproductive strategy, we used three distinct isogenic lineages to test the hypothesis that there would be genetic differences in H2S sensitivity and tolerance. We found significant differences in emersion concentration only among lineages, suggesting a genetic component to H2S sensitivity but not tolerance. Our study also demonstrated that external skin modifications and avoidance behaviours are two distinct strategies used to tolerate ecologically relevant H2S concentrations and likely facilitate survival in challenging mangrove habitats.
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Affiliation(s)
- Keri E Martin
- Department of Biology, Mount Allison University, Sackville, NB, Canada
| | - Suzanne Currie
- Department of Biology, Acadia University, Wolfville, NS, Canada.
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28
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Ausma T, Mulder J, Polman TR, van der Kooi CJ, De Kok LJ. Atmospheric H 2S exposure does not affect stomatal aperture in maize. Planta 2020; 252:63. [PMID: 32968882 PMCID: PMC7511280 DOI: 10.1007/s00425-020-03463-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 09/12/2020] [Indexed: 05/10/2023]
Abstract
Stomatal aperture in maize is not affected by exposure to a subtoxic concentration of atmospheric H2S. At least in maize, H2S, thus, is not a gaseous signal molecule that controls stomatal aperture. Sulfur is an indispensable element for the physiological functioning of plants with hydrogen sulfide (H2S) potentially acting as gasotransmitter in the regulation of stomatal aperture. It is often assumed that H2S is metabolized into cysteine to stimulate stomatal closure. To study the significance of H2S for the regulation of stomatal closure, maize was exposed to a subtoxic atmospheric H2S level in the presence or absence of a sulfate supply to the root. Similar to other plants, maize could use H2S as a sulfur source for growth. Whereas sulfate-deprived plants had a lower biomass than sulfate-sufficient plants, exposure to H2S alleviated this growth reduction. Shoot sulfate, glutathione, and cysteine levels were significantly higher in H2S-fumigated plants compared to non-fumigated plants. Nevertheless, this was not associated with changes in the leaf area, stomatal density, stomatal resistance, and transpiration rate of plants, meaning that H2S exposure did not affect the transpiration rate per stoma. Hence, it did not affect stomatal aperture, indicating that, at least in maize, H2S is not a gaseous signal molecule controlling this aperture.
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Affiliation(s)
- Ties Ausma
- Laboratory of Plant Physiology, Groningen Institute for Evolutionary Life Sciences, University of Groningen, Groningen, The Netherlands.
| | - Jeffrey Mulder
- Laboratory of Plant Physiology, Groningen Institute for Evolutionary Life Sciences, University of Groningen, Groningen, The Netherlands
| | - Thomas R Polman
- Laboratory of Plant Physiology, Groningen Institute for Evolutionary Life Sciences, University of Groningen, Groningen, The Netherlands
| | - Casper J van der Kooi
- Laboratory of Plant Physiology, Groningen Institute for Evolutionary Life Sciences, University of Groningen, Groningen, The Netherlands
| | - Luit J De Kok
- Laboratory of Plant Physiology, Groningen Institute for Evolutionary Life Sciences, University of Groningen, Groningen, The Netherlands
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29
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Yin K, Cui Y, Qu Y, Zhang J, Zhang H, Lin H. Hydrogen sulfide upregulates miR-16-5p targeting PiK3R1 and RAF1 to inhibit neutrophil extracellular trap formation in chickens. Ecotoxicol Environ Saf 2020; 194:110412. [PMID: 32155482 DOI: 10.1016/j.ecoenv.2020.110412] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 02/28/2020] [Accepted: 02/29/2020] [Indexed: 06/10/2023]
Abstract
Hydrogen sulfide (H2S) is a toxic air pollutant that causes immune damage. Recent studies have found that neutrophil extracellular trap (NET) formation is one way in which neutrophils exert immune functions. In addition, the formation of NETs is also related to thrombosis and autoimmune diseases. Recent studies have shown that miRNAs are involved in the regulation of a variety of pathophysiological processes. Here, we investigated the role of H2S in regulating the formation of NETs by affecting miR-16-5p. Our study established an in vitro H2S exposure model for neutrophils using phorbol-myristate-acetate (PMA) to induce NET formation. We observed the morphological changes of cells with scanning electron microscopy and fluorescence microscopy. Then, the content of extracellular DNA and the expression of MPO and NE in each group were detected. The results showed that H2S inhibited the formation of NETs. The expression of miR-16-5p and its target genes PiK3R1 and RAF1 was then measured by qRT-PCR. H2S upregulated miR-16-5p and inhibited expression of the target genes PiK3R1 and RAF1, and it subsequently inhibited the Pi3K/AKT and ERK pathways and decreased respiratory burst levels. Furthermore, H2S attenuated inositol 1,4,5-trisphosphate receptor (IP3R)-mediated endoplasmic reticulum calcium outflow as well as autophagy caused by PMA. This study enriches H2S immunotoxicity research and provides a possible solution for the treatment of NET-related diseases.
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Affiliation(s)
- Kai Yin
- Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Number 2, Yuanmingyuan West Road, Haidian District, Beijing, 100193, PR China; College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Yuan Cui
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Yingying Qu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Jinxi Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Hongfu Zhang
- Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Number 2, Yuanmingyuan West Road, Haidian District, Beijing, 100193, PR China; State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, PR China.
| | - Hongjin Lin
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China; Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
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30
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Kim DS, Anantharam P, Padhi P, Thedens DR, Li G, Gilbreath E, Rumbeiha WK. Transcriptomic profile analysis of brain inferior colliculus following acute hydrogen sulfide exposure. Toxicology 2020; 430:152345. [PMID: 31843631 PMCID: PMC8324331 DOI: 10.1016/j.tox.2019.152345] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 12/09/2019] [Accepted: 12/12/2019] [Indexed: 12/11/2022]
Abstract
Hydrogen sulfide (H2S) is a gaseous molecule found naturally in the environment, and as an industrial byproduct, and is known to cause acute death and induces long-term neurological disorders following acute high dose exposures. Currently, there is no drug approved for treatment of acute H2S-induced neurotoxicity and/or neurological sequelae. Lack of a deep understanding of pathogenesis of H2S-induced neurotoxicity has delayed the development of appropriate therapeutic drugs that target H2S-induced neuropathology. RNA sequencing analysis was performed to elucidate the cellular and molecular mechanisms of H2S-induced neurodegeneration, and to identify key molecular elements and pathways that contribute to H2S-induced neurotoxicity. C57BL/6J mice were exposed by whole body inhalation to 700 ppm of H2S for either one day, two consecutive days or 4 consecutive days. Magnetic resonance imaging (MRI) scan analyses showed H2S exposure induced lesions in the inferior colliculus (IC) and thalamus (TH). This mechanistic study focused on the IC. RNA Sequencing analysis revealed that mice exposed once, twice, or 4 times had 283, 193 and 296 differentially expressed genes (DEG), respectively (q-value < 0.05, fold-change> 1.5). Hydrogen sulfide exposure modulated multiple biological pathways including unfolded protein response, neurotransmitters, oxidative stress, hypoxia, calcium signaling, and inflammatory response in the IC. Hydrogen sulfide exposure activated PI3K/Akt and MAPK signaling pathways. Pro-inflammatory cytokines were shown to be potential initiators of the modulated signaling pathways following H2S exposure. Furthermore, microglia were shown to release IL-18 and astrocytes released both IL-1β and IL-18 in response to H2S. This transcriptomic analysis data revealed complex signaling pathways involved in H2S-induced neurotoxicity and may provide important associated mechanistic insights.
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Affiliation(s)
- Dong-Suk Kim
- VDPAM, College of Veterinary Medicine, Iowa State University, Ames, IA, United States
| | - Poojya Anantharam
- VDPAM, College of Veterinary Medicine, Iowa State University, Ames, IA, United States
| | - Piyush Padhi
- VDPAM, College of Veterinary Medicine, Iowa State University, Ames, IA, United States
| | - Daniel R Thedens
- Radiology, School of Medicine, University of Iowa, Iowa City, IA, United States
| | - Ganwu Li
- VDPAM, College of Veterinary Medicine, Iowa State University, Ames, IA, United States
| | - Ebony Gilbreath
- Department of Pathobiology, College of Veterinary Medicine, Tuskegee University, United States
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31
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Li X, Chen M, Shi Q, Zhang H, Xu S. Hydrogen sulfide exposure induces apoptosis and necroptosis through lncRNA3037/miR-15a/BCL2-A20 signaling in broiler trachea. Sci Total Environ 2020; 699:134296. [PMID: 31683218 DOI: 10.1016/j.scitotenv.2019.134296] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 09/03/2019] [Accepted: 09/03/2019] [Indexed: 06/10/2023]
Abstract
Hydrogen sulfide (H2S) is an air pollutant, has toxic effects on respiratory tract. However, the underlying mechanisms of H2S induced respiratory toxicity and the roles of long non-coding RNAs (lncRNA) and microRNA (miRNA) in this process remain poorly understood. To clear this, we investigated the change of tracheal tissue ultrastructure and the expression profiles of lncRNAs and miRNAs of chicken trachea exposed to H2S for 42 days. Results showed that H2S exposure triggered apoptosis, necroptosis, and differential expression of 16 lncRNAs and 18 miRNAs in broiler tracheas. The results of LMH cells stimulated by NaHS in vitro also showed the occurrence of apoptosis and necroptosis. LncRNA3037 is down-regulated and miR-15a is up-regulated in tracheal tissue and LMH cells under H2S exposure. Bioinformatics analysis and dual luciferase reporter system showed lncRNA3037 bound directly to miR-15a and negatively regulates each other. A20 and BCL2 are the target genes of miR-15a and negatively regulated by it. Overexpression of miR-15a caused apoptosis and necroptosis and its inhibition partially reversed apoptosis and necroptosis of LMH cells caused by NaHS stimulation and lncRNA3037 knockdown. Taken together, we concluded that H2S exposure mediates apoptosis and necroptosis through lncRNA3037/miR-15/A20-BCL2. These results provide new insights for unveiling the biological effects of H2S in vivo and in vitro.
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Affiliation(s)
- Xiaojing Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Menghao Chen
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Qunxiang Shi
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Hongfu Zhang
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China.
| | - Shiwen Xu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China; Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China.
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32
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Hu X, Chi Q, Liu Q, Wang D, Zhang Y, Li S. Atmospheric H 2S triggers immune damage by activating the TLR-7/MyD88/NF-κB pathway and NLRP3 inflammasome in broiler thymus. Chemosphere 2019; 237:124427. [PMID: 31352103 DOI: 10.1016/j.chemosphere.2019.124427] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 07/18/2019] [Accepted: 07/20/2019] [Indexed: 06/10/2023]
Abstract
Atmospheric hydrogen sulfide (H2S) is a highly toxic air pollutant that has a negative effect on human health and animal welfare. The immunotoxicity of H2S has been explored previously, but its mechanism still needs to be clarified, especially in chickens. To further evaluate the immunotoxicity of H2S, 1-day-old broilers were recruited and exposed to atmospheric H2S for 42 days of age. Our results showed that H2S significantly reduced the thymus index and the CD4+ and CD8+ T-lymphocyte numbers and that it also changed the CD4+/CD8+ ratio. The morphological analysis showed that H2S incrassated the medulla and generated inflammatory infiltration. In addition, it caused the mitochondria to swell and the chromatin to condense, and destroyed nuclear structures were observed. We also conducted bioinformation and transcriptomic analyses to delve the mechanism of H2S toxicity in chicken thymus. We measured 172 differently expression genes (DEGs) after H2S exposure and further filtrated the DEGs that are related to inflammation and cell death that play a critical role in immune function. We concluded that H2S significantly increased IL-1β, IL-4 and IL-10 levels, whereas it downregulated IL-12 and IFN-γ. This study confirmed that H2S triggered the thymus inflammatory response and caused a Th1/Th2 imbalance. Moreover, our results demonstrated that H2S triggered the TLR-7/MyD88/NF-κB pathway to promote NLRP3 inflammasome activation. In conclusion, atmospheric H2S actives the TLR-7/MyD88/NF-κB pathway and the NLRP3 inflammasome to promote an inflammatory response, which then causes tissues damage in broiler thymus. These results provide new insights for unveiling the immunotoxic effects of H2S.
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Affiliation(s)
- Xueyuan Hu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
| | - Qianru Chi
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
| | - Qingqing Liu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
| | - Dongxu Wang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
| | - Yiming Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
| | - Shu Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China.
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Wang S, Chi Q, Hu X, Cong Y, Li S. Hydrogen sulfide-induced oxidative stress leads to excessive mitochondrial fission to activate apoptosis in broiler myocardia. Ecotoxicol Environ Saf 2019; 183:109578. [PMID: 31442807 DOI: 10.1016/j.ecoenv.2019.109578] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 08/09/2019] [Accepted: 08/14/2019] [Indexed: 06/10/2023]
Abstract
Hydrogen sulfide (H2S), as an environmental gas pollutant, has harmful effects on many tissues and organs, including myocardium. However, the underlying mechanisms of H2S-induced myocardia toxicity remain poorly understood. The present study was designed to investigate the effect of H2S on myocardia injury in broilers from the perspective of apoptosis. 30 ppm H2S was administered in the broiler chamber for 2, 4 and 6 week, respectively, and the myocardial samples in control groups and H2S groups were collected immediately after euthanized broilers. Transmission electron microscope, test kits, qRT-PCR and western blot were performed. Results showed that H2S exposure decreased the activities of catalase (CAT) and total antioxidant capability (T-AOC), whereas the content of hydrogen peroxide (H2O2) and the activity of inducible nitric oxide synthase (iNOS) enhanced. Besides, we found the excessive expression of mitochondrial fission genes (Drp1 and Mff) by H2S, the dynamic balance of mitochondrial fission and fusion is destroyed. Furthermore, the levels of pro-apoptotic gene (including CytC, Cas3, Cas8, Cas9, TNF-α and Bax) increased after H2S exposure, as well as the expression level of anti-apoptotic gene bcl-2 decreased. At the same time, the activities of ATPase (including Na+-K+-ATPase, Ca2+-ATPase, Mg2+-ATPase and Ca2+-Mg2+-ATPase) weakened under H2S exposure. Therefore, we conclude that H2S induced oxidative stress and then leaded to excessive mitochondrial fission, which involved in apoptosis and damage broiler myocardia.
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Affiliation(s)
- Shuang Wang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Qianru Chi
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Xueyuan Hu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Yimei Cong
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Shu Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China; Heilingjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin, 150030, PR China.
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Abstract
Hydrogen sulfide (H2S) is an endogenously produced signaling molecule that can be cytoprotective, especially in conditions of ischemia/reperfusion injury. However, H2S is also toxic, and unregulated accumulation or exposure to environmental H2S can be lethal. In Caenorhabditis elegans, the hypoxia inducible factor (hif-1) coordinates the initial transcriptional response to H2S, and is essential to survive exposure to low concentrations of H2S. We performed a forward genetic screen to identify mutations that suppress the lethality of hif-1 mutant animals in H2S. The mutations we recovered are specific for H2S, as they do not suppress embryonic lethality or reproductive arrest of hif-1 mutant animals in hypoxia, nor can they prevent the death of hif-1 mutant animals exposed to hydrogen cyanide. The majority of hif-1 suppressor mutations we recovered activate the skn-1/Nrf2 transcription factor. Activation of SKN-1 by hif-1 suppressor mutations increased the expression of a subset of H2S-responsive genes, consistent with previous findings that skn-1 plays a role in the transcriptional response to H2S. Using transgenic rescue, we show that overexpression of a single gene, rhy-1, is sufficient to protect hif-1 mutant animals in H2S. The rhy-1 gene encodes a predicated O-acyltransferase enzyme that has previously been shown to negatively regulate HIF-1 activity. Our data indicate that RHY-1 has novel, hif-1 independent, function that promotes survival in H2S.
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Affiliation(s)
- Joseph W Horsman
- Department of Biochemistry, University of Washington School of Medicine, Seattle, Washington 98195
| | - Frazer I Heinis
- Department of Biochemistry, University of Washington School of Medicine, Seattle, Washington 98195
| | - Dana L Miller
- Department of Biochemistry, University of Washington School of Medicine, Seattle, Washington 98195
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Abstract
Sargassum constitutes an ancient marine ecosystem that circulates clockwise on the Atlantic Ocean. Upon 2011, the pelagic seaweed which is the main component of sargassum started to reach beaches on 19 Caribbean countries, with environmental, health and economic impacts that need to be addressed urgently.
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Chen M, Li X, Shi Q, Zhang Z, Xu S. Hydrogen sulfide exposure triggers chicken trachea inflammatory injury through oxidative stress-mediated FOS/IL8 signaling. J Hazard Mater 2019; 368:243-254. [PMID: 30684762 DOI: 10.1016/j.jhazmat.2019.01.054] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 01/14/2019] [Accepted: 01/17/2019] [Indexed: 06/09/2023]
Abstract
Hydrogen sulfide (H2S) is well known to cause irritation and damage to airway following inhalation, but the mechanism by which H2S contributes to airway toxicity is unclear. In order to assess the respiratory toxicity of H2S inhalation in chicken trachea, we investigated the change of oxidative stress parameters, tracheal tissue structure and transcriptome profiles of chicken trachea exposed to H2S for 42 days. The results showed H2S exposure induced oxidative stress and inflammation in trachea. The ultrastructural analysis revealed loss of cilia and accumulation of mucus in tracheal epithelium. Differentially expressed genes (DEGs) analysis indicated 454 genes were significantly changed, including 136 genes upregulated and 318 genes downregulated. Gene ontology and KEGG analysis showed many genes involved in response to oxidative stress, inflammatory and immune response, which might contribute to H2S-induced tracheal inflammatory injury. Among those genes, N-acetyl-L-cysteine (NAC) treatment blocked the H2S-triggered expression of FOS and IL8. Silencing FOS by siRNA inhibited H2S-induced expression of IL8. Taken together, we concluded that H2S induced oxidative stress leads to tracheal inflammation through FOS/IL8 signaling, leading to excessive mucus secretion and absence of cilia. These results provide new insights for unveiling the biological effects of H2S in vivo and in vitro.
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Affiliation(s)
- Menghao Chen
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Xiaojing Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Qunxiang Shi
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Ziwei Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China.
| | - Shiwen Xu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China; Key Laboratory of the Provincial Education, Department of Heilongjiang for Common Animal Disease Prevention and Treatment, College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China.
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Cheung JY, Wang J, Zhang XQ, Song J, Davidyock JM, Prado FJ, Shanmughapriya S, Worth AM, Madesh M, Judenherc-Haouzi A, Haouzi P. Methylene Blue Counteracts H 2S-Induced Cardiac Ion Channel Dysfunction and ATP Reduction. Cardiovasc Toxicol 2019; 18:407-419. [PMID: 29603116 DOI: 10.1007/s12012-018-9451-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
We have previously demonstrated that methylene blue (MB) counteracts the effects of hydrogen sulfide (H2S) cardiotoxicity by improving cardiomyocyte contractility and intracellular Ca2+ homeostasis disrupted by H2S poisoning. In vivo, MB restores cardiac contractility severely depressed by sulfide and protects against arrhythmias, ranging from bundle branch block to ventricular tachycardia or fibrillation. To dissect the cellular mechanisms by which MB reduces arrhythmogenesis and improves bioenergetics in myocytes intoxicated with H2S, we evaluated the effects of H2S on resting membrane potential (Em), action potential (AP), Na+/Ca2+ exchange current (INaCa), depolarization-activated K+ currents and ATP levels in adult mouse cardiac myocytes and determined whether MB could counteract the toxic effects of H2S on myocyte electrophysiology and ATP. Exposure to toxic concentrations of H2S (100 µM) significantly depolarized Em, reduced AP amplitude, prolonged AP duration at 90% repolarization (APD90), suppressed INaCa and depolarization-activated K+ currents, and reduced ATP levels in adult mouse cardiac myocytes. Treating cardiomyocytes with MB (20 µg/ml) 3 min after H2S exposure restored Em, APD90, INaCa, depolarization-activated K+ currents, and ATP levels toward normal. MB improved mitochondrial membrane potential (∆ψm) and oxygen consumption rate in myocytes in which Complex I was blocked by rotenone. We conclude that MB ameliorated H2S-induced cardiomyocyte toxicity at multiple levels: (1) reversing excitation-contraction coupling defects (Ca2+ homeostasis and L-type Ca2+ channels); (2) reducing risks of arrhythmias (Em, APD, INaCa and depolarization-activated K+ currents); and (3) improving cellular bioenergetics (ATP, ∆ψm).
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MESH Headings
- Action Potentials
- Adenosine Triphosphate/metabolism
- Animals
- Arrhythmias, Cardiac/chemically induced
- Arrhythmias, Cardiac/metabolism
- Arrhythmias, Cardiac/physiopathology
- Arrhythmias, Cardiac/prevention & control
- Calcium Channels, L-Type/drug effects
- Calcium Channels, L-Type/metabolism
- Calcium Signaling/drug effects
- Energy Metabolism/drug effects
- Heart Rate/drug effects
- Hydrogen Sulfide/toxicity
- Ion Channels/drug effects
- Ion Channels/metabolism
- Membrane Potential, Mitochondrial/drug effects
- Methylene Blue/pharmacology
- Mice
- Mitochondria, Heart/drug effects
- Mitochondria, Heart/metabolism
- Myocardial Contraction/drug effects
- Myocytes, Cardiac/drug effects
- Myocytes, Cardiac/metabolism
- Oxygen Consumption/drug effects
- Potassium Channels, Voltage-Gated/drug effects
- Potassium Channels, Voltage-Gated/metabolism
- Sodium-Calcium Exchanger/drug effects
- Sodium-Calcium Exchanger/metabolism
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Affiliation(s)
- Joseph Y Cheung
- Center of Translational Medicine, Lewis Katz School of Medicine of Temple University, 3500 N. Broad Street, MERB 958, Philadelphia, PA, 19140, USA.
- Department of Medicine, Lewis Katz School of Medicine of Temple University, Philadelphia, PA, 19140, USA.
| | - JuFang Wang
- Center of Translational Medicine, Lewis Katz School of Medicine of Temple University, 3500 N. Broad Street, MERB 958, Philadelphia, PA, 19140, USA
| | - Xue-Qian Zhang
- Center of Translational Medicine, Lewis Katz School of Medicine of Temple University, 3500 N. Broad Street, MERB 958, Philadelphia, PA, 19140, USA
| | - Jianliang Song
- Center of Translational Medicine, Lewis Katz School of Medicine of Temple University, 3500 N. Broad Street, MERB 958, Philadelphia, PA, 19140, USA
| | - John M Davidyock
- Department of Medicine, Lewis Katz School of Medicine of Temple University, Philadelphia, PA, 19140, USA
| | - Fabian Jana Prado
- Center of Translational Medicine, Lewis Katz School of Medicine of Temple University, 3500 N. Broad Street, MERB 958, Philadelphia, PA, 19140, USA
| | - Santhanam Shanmughapriya
- Center of Translational Medicine, Lewis Katz School of Medicine of Temple University, 3500 N. Broad Street, MERB 958, Philadelphia, PA, 19140, USA
| | - Alison M Worth
- Center of Translational Medicine, Lewis Katz School of Medicine of Temple University, 3500 N. Broad Street, MERB 958, Philadelphia, PA, 19140, USA
| | - Muniswamy Madesh
- Center of Translational Medicine, Lewis Katz School of Medicine of Temple University, 3500 N. Broad Street, MERB 958, Philadelphia, PA, 19140, USA
| | - Annick Judenherc-Haouzi
- Heart and Vascular Institute, Pennsylvania State University College of Medicine, Hershey, PA, 17033, USA
| | - Philippe Haouzi
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Pennsylvania State University College of Medicine, Hershey, PA, 17033, USA
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Sun L, Wu Y, Chen J, Zhong J, Zeng F, Wu S. A Turn-On Optoacoustic Probe for Imaging Metformin-Induced Upregulation of Hepatic Hydrogen Sulfide and Subsequent Liver Injury. Theranostics 2019; 9:77-89. [PMID: 30662555 PMCID: PMC6332797 DOI: 10.7150/thno.30080] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Accepted: 11/19/2018] [Indexed: 01/10/2023] Open
Abstract
Metformin is currently the most prescribed oral agent for diabetes treatment; however the overdose or long-term use may cause some severe side effects such as liver injury. Researches indicate that metformin-induced liver injury is closely related to upregulation of hepatic H2S. Hence, monitoring hepatic H2S generation induced by metformin could be an effective approach for evaluating hepatoxicity of the drug. Methods: We present a novel turn-on and dual-mode probe for detecting and imaging metformin-induced liver injury by specifically tracking the upregulation of hepatic H2S with fluorescent and optoacoustic methods. After reaction with H2S, the strong electron-withdrawing group dinitrophenyl ether (which acts as both the recognition moiety and the fluorescence quencher) was cleaved and replaced by an electron-donating group hydroxyl. This correspondingly leads to the changes of the probe's electronic state and absorption red-shifting as well as the subsequent turn-on fluorescent and optoacoustic signals. Results: The probe was applied to the colon tumor-bearing mice model and the metformin-induced liver injury mice model to achieve tumor imaging and liver injury assessment. The biosafety of the probe was verified by histological analysis (hematoxylin and eosin staining) and serum biochemical assays. Conclusion: The probe responds quickly to H2S in tumors and the liver, and MSOT imaging with the probe offers cross-secitonal and 3D spatial information of liver injury. This study may provide an effective approach for accessing medication side effects by tracking drug-metabolism-related products.
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Affiliation(s)
| | | | | | | | - Fang Zeng
- State Key Laboratory of Luminescent Materials & Devices, College of Materials Science & Engineering, South China University of Technology, Guangzhou 510640, China
| | - Shuizhu Wu
- State Key Laboratory of Luminescent Materials & Devices, College of Materials Science & Engineering, South China University of Technology, Guangzhou 510640, China
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Hu X, Chi Q, Wang D, Chi X, Teng X, Li S. Hydrogen sulfide inhalation-induced immune damage is involved in oxidative stress, inflammation, apoptosis and the Th1/Th2 imbalance in broiler bursa of Fabricius. Ecotoxicol Environ Saf 2018; 164:201-209. [PMID: 30118953 DOI: 10.1016/j.ecoenv.2018.08.029] [Citation(s) in RCA: 75] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 08/05/2018] [Accepted: 08/08/2018] [Indexed: 06/08/2023]
Abstract
Hydrogen sulfide (H2S) is widely accepted to be a signaling molecule that exhibits some potentially beneficial therapeutic effects at physiological concentrations. At elevated levels, H2S is highly toxic and has a negative effect on human health and animal welfare. Studies have shown that H2S exposure induces an immune function in mice, but there are few studies of the effect of continuous H2S exposure on immune organs in poultry. In this study, one-day-old broilers were selected and exposed to 4 or 20 ppm of H2S gas for 14, 28 and 42 days of age. After exposure, the bursa of Fabricius (BF) was harvested. The results showed that continuous H2S exposure reduced the body weight, abdominal fat percentage, and antibody titer in broilers. H2S exposure also decreased mRNA expression of IgA, IgM and IgG in the broiler BF. A histological study revealed obvious nuclear debris, and a few vacuoles in the BF, and an ultrastructural study revealed mitochondrial and nuclear damage to BF cells after H2S exposure for 42 d. Terminal deoxynucleotidyl transferase-mediated dUTP nick end-labeling (TUNEL) assay suggested H2S exposure remarkably increased the number of TUNEL positive nuclei and significantly increased apoptotic index. The expression of apoptotic genes also confirmed that H2S inhalation damaged the broiler BF. Increased cytokines and reduced antioxidant responses were detected in the BF after exposure to H2S. Cytokines promoted inflammation and caused a Th1/Th2 imbalance. We suggest that continuous H2S intoxication triggers oxidative stress, inflammation, apoptosis and a Th1/Th2 imbalance in the BF, leading to immune injury in broilers.
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Affiliation(s)
- Xueyuan Hu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Qianru Chi
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Dongxu Wang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Xin Chi
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Xiaohua Teng
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China.
| | - Shu Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China.
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Chi Q, Chi X, Hu X, Wang S, Zhang H, Li S. The effects of atmospheric hydrogen sulfide on peripheral blood lymphocytes of chickens: Perspectives on inflammation, oxidative stress and energy metabolism. Environ Res 2018; 167:1-6. [PMID: 30005195 DOI: 10.1016/j.envres.2018.06.051] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 06/11/2018] [Accepted: 06/26/2018] [Indexed: 06/08/2023]
Abstract
Excessive hydrogen sulfide (H2S) affects poultry health. Exposure to air pollution induces inflammation, oxidative stress, energy metabolism dysfunction and adverse health effects. However, few detailed studies have been conducted on the molecular mechanisms of H2S-induced injury in poultry. To understand how H2S drives its adverse effects on chickens, twenty-four 14-day-old chickens were randomly divided into two groups. The chickens in the control group were raised in a separate chamber without H2S, and the chickens in the treatment group were exposed to 30 ppm H2S. After 14 days of exposure, peripheral blood samples were taken and the lymphocytes were extracted to detect inflammation, oxidative stress and energy metabolism in broilers. Overall, an increase in the inflammatory response was detected in the peripheral blood lymphocytes following H2S exposure compared to the control group, and the expression levels of the heat shock proteins (HSPs) and the transcription factors nuclear factor κB (NF-κB), cyclooxygenase 2 (COX-2) and inducible nitric oxide synthase (iNOS) were up-regulated in the H2S group, which further suggested that H2S induced an inflammatory response via the NF-κB pathway. Because of the activation of NF-κB, which is a major regulator of oxidative stress, we also observed that reactive oxygen species (ROS) production was elevated under H2S exposure. In addition, we presumed that energy metabolism might be damaged due to the increased ROS production, and we found that H2S down-regulated the expression levels of energy metabolism-related genes, which indicated the occurrence of energy metabolism dysfunction. Altogether, this study suggests that exposure to excessive atmospheric H2S induces an inflammatory response, oxidative stress and energy metabolism dysfunction, providing a reference for comparative medicine.
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Affiliation(s)
- Qianru Chi
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Xin Chi
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Xueyuan Hu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Shuang Wang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Hongfu Zhang
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
| | - Shu Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China; Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin 150030, China.
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Kodama K, Waku M, Sone R, Miyawaki D, Ishida T, Akatsuka T, Horiguchi T. Ontogenetic and temperature-dependent changes in tolerance to hypoxia and hydrogen sulfide during the early life stages of the Manila clam Ruditapes philippinarum. Mar Environ Res 2018; 137:177-187. [PMID: 29325692 DOI: 10.1016/j.marenvres.2017.12.019] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Revised: 12/28/2017] [Accepted: 12/28/2017] [Indexed: 06/07/2023]
Abstract
Wind-induced upwelling of hypoxic waters containing hydrogen sulfide (H2S) sometimes causes mass mortalities of aquatic organisms inhabiting coastal areas, including the hypoxia-tolerant Manila clam Ruditapes philippinarum. We examined the tolerance of Manila clam to H2S under controlled laboratory conditions. Larvae and juveniles obtained by artificial fertilization or from a wild population were exposed to normoxic or to hypoxic water with or without un-ionized H2S (concentrations, 0.2-52.2 mg/L). Twenty-four-hour exposure experiments revealed ontogenetic changes in the clam's tolerance to H2S exposure: tolerance was enhanced from the larval stages to juveniles just after settlement but was attenuated as juveniles grew. Tolerance of larvae and juveniles to H2S exposure weakened as the water temperature rose from 20 to 28 °C. Prolonged 48-h exposure to H2S attenuated the tolerance of juveniles to H2S. Temporary suspension of H2S exposure by 24-h reoxygenation improved the ability of juveniles to withstand repeated H2S exposure.
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Affiliation(s)
- Keita Kodama
- Center for Health and Environmental Risk Research, National Institute for Environmental Studies, Tsukuba, Ibaraki 305-8506, Japan.
| | - Mitsuyasu Waku
- Fisheries Environment Research Department, Aichi Fisheries Research Institute, Gamagori, Aichi 443-0021, Japan
| | - Ryota Sone
- Fisheries Environment Research Department, Aichi Fisheries Research Institute, Gamagori, Aichi 443-0021, Japan
| | - Dai Miyawaki
- Fisheries Environment Research Department, Aichi Fisheries Research Institute, Gamagori, Aichi 443-0021, Japan
| | - Toshiro Ishida
- Fisheries Environment Research Department, Aichi Fisheries Research Institute, Gamagori, Aichi 443-0021, Japan
| | - Tetsuji Akatsuka
- Center for Health and Environmental Risk Research, National Institute for Environmental Studies, Tsukuba, Ibaraki 305-8506, Japan
| | - Toshihiro Horiguchi
- Center for Health and Environmental Risk Research, National Institute for Environmental Studies, Tsukuba, Ibaraki 305-8506, Japan
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Abstract
Nitric oxide (NO) a gaseous free radical is one of the ten smallest molecules found in nature, while hydrogen sulfide (H2S) is a gas that bears the pungent smell of rotten eggs. Both are toxic yet they are gasotransmitters of physiological relevance. There appears to be an uncanny resemblance between the general actions of these two gasotransmitters in health and disease. The role of NO and H2S in cancer has been quite perplexing, as both tumor promotion and inflammatory activities as well as anti-tumor and antiinflammatory properties have been described. These paradoxes have been explained for both gasotransmitters in terms of each having a dual or biphasic effect that is dependent on the local flux of each gas. In this review/commentary, I have discussed the major roles of NO and H2S in carcinogenesis, evaluating their dual nature, focusing on the enzymes that contribute to this paradox and evaluate the pros and cons of inhibiting or inducing each of these enzymes.
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Affiliation(s)
- Khosrow Kashfi
- Department of Molecular, Cellular and Biomedical Sciences, Sophie Davis School of Biomedical Education, City University of New York School of Medicine, NY, USA.
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Abstract
The history of H2S - as an environmental toxin - dates back to 1700, to the observations of the Italian physician Bernardino Ramazzini, whose book "De Morbis Artificum Diatriba" described the painful eye irritation and inflammation of "sewer gas" in sewer workers. The gas has subsequently been identified as hydrogen sulfide (H2S), and opened three centuries of research into the biological roles of H2S. The current article highlights the key discoveries in the field of H2S research, including (a) the toxicological studies, which characterized H2S as an environmental toxin, and identified some of its modes of action, including the inhibition of mitochondrial respiration; (b) work in the field of bacteriology, which, starting in the early 1900s, identified H2S as a bacterial product - with subsequently defined roles in the regulation of periodontal disease (oral bacterial flora), intestinal epithelial cell function (enteral bacterial flora) as well as in the regulation of bacterial resistance to antibiotics; and (c), work in diverse fields of mammalian biology, which, starting in the 1940s, identified H2S as an endogenous mammalian enzymatic product, the functions of which - among others, in the cardiovascular and nervous system - have become subjects of intensive investigation for the last decade. The current review not only enumerates the key discoveries related to H2S made over the last three centuries, but also compiles the most frequently cited papers in the field which have been published over the last decade and highlights some of the current 'hot topics' in the field of H2S biology.
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Affiliation(s)
- Csaba Szabo
- Department of Anesthesiology, University of Texas Medical Branch, 301 University Boulevard, Galveston, TX 77555, USA.
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de Lira NPV, Pauletti BA, Marques AC, Perez CA, Caserta R, de Souza AA, Vercesi AE, Paes Leme AF, Benedetti CE. BigR is a sulfide sensor that regulates a sulfur transferase/dioxygenase required for aerobic respiration of plant bacteria under sulfide stress. Sci Rep 2018; 8:3508. [PMID: 29472641 PMCID: PMC5823870 DOI: 10.1038/s41598-018-21974-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Accepted: 02/13/2018] [Indexed: 12/24/2022] Open
Abstract
To cope with toxic levels of H2S, the plant pathogens Xylella fastidiosa and Agrobacterium tumefaciens employ the bigR operon to oxidize H2S into sulfite. The bigR operon is regulated by the transcriptional repressor BigR and it encodes a bifunctional sulfur transferase (ST) and sulfur dioxygenase (SDO) enzyme, Blh, required for H2S oxidation and bacterial growth under hypoxia. However, how Blh operates to enhance bacterial survival under hypoxia and how BigR is deactivated to derepress operon transcription is unknown. Here, we show that the ST and SDO activities of Blh are in vitro coupled and necessary to oxidize sulfide into sulfite, and that Blh is critical to maintain the oxygen flux during A. tumefaciens respiration when oxygen becomes limited to cells. We also show that H2S and polysulfides inactivate BigR leading to operon transcription. Moreover, we show that sulfite, which is produced by Blh in the ST and SDO reactions, is toxic to Citrus sinensis and that X. fastidiosa-infected plants accumulate sulfite and higher transcript levels of sulfite detoxification enzymes, suggesting that they are under sulfite stress. These results indicate that BigR acts as a sulfide sensor in the H2S oxidation mechanism that allows pathogens to colonize plant tissues where oxygen is a limiting factor.
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Affiliation(s)
- Nayara Patricia Vieira de Lira
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), CEP 13083-100, Campinas, SP, Brazil
| | - Bianca Alves Pauletti
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), CEP 13083-100, Campinas, SP, Brazil
| | - Ana Carolina Marques
- Department of Clinical Pathology, Faculty of Medical Sciences, State University of Campinas, 13083-887, Campinas, SP, Brazil
| | - Carlos Alberto Perez
- Brazilian Synchrotron Light Laboratory (LNLS), Brazilian Center for Research in Energy and Materials (CNPEM), CEP 13083-100, Campinas, SP, Brazil
| | - Raquel Caserta
- Agronomic Institute of Campinas, Citriculture Research Center 'Sylvio Moreira', CEP 13490-970, Cordeirópolis, SP, Brazil
| | - Alessandra Alves de Souza
- Agronomic Institute of Campinas, Citriculture Research Center 'Sylvio Moreira', CEP 13490-970, Cordeirópolis, SP, Brazil
| | - Aníbal Eugênio Vercesi
- Department of Clinical Pathology, Faculty of Medical Sciences, State University of Campinas, 13083-887, Campinas, SP, Brazil
| | - Adriana Franco Paes Leme
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), CEP 13083-100, Campinas, SP, Brazil
| | - Celso Eduardo Benedetti
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), CEP 13083-100, Campinas, SP, Brazil.
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Affiliation(s)
- Yang Yang
- Department of Cardiovascular Medicine, the Second Xiangya Hospital, Central South University, Changsha, Hunan, PR China
| | - Die Hu
- Department of Cardiovascular Medicine, the Second Xiangya Hospital, Central South University, Changsha, Hunan, PR China
| | - Daoquan Peng
- Department of Cardiovascular Medicine, the Second Xiangya Hospital, Central South University, Changsha, Hunan, PR China
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Liu S, Ni JQ, Radcliffe JS, Vonderohe C. Hydrogen sulfide emissions from a swine building affected by dietary crude protein. J Environ Manage 2017; 204:136-143. [PMID: 28865308 DOI: 10.1016/j.jenvman.2017.08.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Revised: 07/24/2017] [Accepted: 08/18/2017] [Indexed: 06/07/2023]
Abstract
Hydrogen sulfide (H2S) is a toxic air pollutant at animal facilities; but the understanding of its generation and emission processes has been limited. This paper studied H2S emissions during a complete cycle of wean-finish pigs from a research building, where 12 pig rooms were divided into three groups that were fed with standard feed (control), and 2.1-3.8% (T1) and 4.4-7.8% (T2) reduced dietary crude protein (CP) feed. The group cycle mean H2S emission rates were 4.0 ± 2.9, 4.3 ± 3.2, and 5.4 ± 4.0 g d-1 AU-1 (Animal Unit = 500 kg live mass), respectively, for the control, T1, and T2 groups. Emissions of H2S were promoted by 10.0 and 36.7%, respectively, for the T1 and T2 groups (p < 0.001), although large variabilities existed in the emissions from different rooms within the same groups. The enhanced H2S emissions from the T1 and T2 groups were related to the reduced manure pH and were possibly affected through a number of pathways, which could involve volatile fatty acids and nitrogen concentrations, and microbial activities in manure.
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Affiliation(s)
- Shule Liu
- Department of Agricultural and Biological Engineering, Purdue University, West Lafayette, IN 47907, USA
| | - Ji-Qin Ni
- Department of Agricultural and Biological Engineering, Purdue University, West Lafayette, IN 47907, USA.
| | - John S Radcliffe
- Department of Animal Sciences, Purdue University, West Lafayette, IN 47907, USA
| | - Caitlin Vonderohe
- Department of Animal Sciences, Purdue University, West Lafayette, IN 47907, USA
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Imamura F, Cooper TK, Hasegawa-Ishii S, Sonobe T, Haouzi P. Hydrogen Sulfide Specifically Alters NAD(P)H Quinone Dehydrogenase 1 (NQO1) Olfactory Neurons in the Rat. Neuroscience 2017; 366:105-112. [PMID: 29054567 DOI: 10.1016/j.neuroscience.2017.10.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Revised: 10/10/2017] [Accepted: 10/12/2017] [Indexed: 11/19/2022]
Abstract
The regions of the olfactory epithelium affected by hydrogen sulfide (H2S) toxicity in the rat present a striking similarity with the developmental olfactory zone 1 described in the mouse. This zone which is the only region containing neurons expressing NAD(P)H quinone dehydrogenase 1 (NQO1) is involved in complex behavioral responses in rodents, and other mammals, triggered by specific olfactory stimuli. We therefore sought to determine whether (1) olfactory neurons expressing NQO1 are located in the same regions in the rats and in the mice and (2) there is an overlap between olfactory neurons expressing this protein and those affected by the toxicity of H2S. Rats were exposed to H2S - 200 ppm during 3 h, three consecutive days- and displayed symmetric acute segmental necrosis of the neurons and sustentacular cells of the olfactory epithelium in the dorsomedial nasal cavity. We found that expression of NQO1 in Sprague-Dawley rats spatially recapitulated that of the mouse. The degree of agreement or overlap between these two populations of neurons (necrosis vs. NQO1 expression) reached 80.2%. Although the underlying mechanisms accounted for the high sensitivity for NQO1 neurons -or the relative protection of non NQO1 neurons- to sulfide toxicity remain to be established, this observation is offering an intriguing approach that could be used to acutely suppress the pool of neural cells in olfactory zone I and to understand the mechanisms of toxicity and protection of other populations of neurons exposed to sulfide.
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Affiliation(s)
- Fumiaki Imamura
- Department of Pharmacology, Pennsylvania State University, College of Medicine, Hershey, PA, USA
| | - Timothy K Cooper
- Department of Pathology, Pennsylvania State University, College of Medicine, Hershey, PA, USA; Department of Comparative Medicine, Pennsylvania State University, College of Medicine, Hershey, PA, USA
| | - Sanae Hasegawa-Ishii
- Department of Pharmacology, Pennsylvania State University, College of Medicine, Hershey, PA, USA
| | - Takashi Sonobe
- Division of Pulmonary and Critical Care Medicine, Pennsylvania State University, College of Medicine, Hershey, PA, USA
| | - Philippe Haouzi
- Division of Pulmonary and Critical Care Medicine, Pennsylvania State University, College of Medicine, Hershey, PA, USA.
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Fontana L, Lee SJ, Capitanelli I, Re A, Maniscalco M, Mauriello MC, Iavicoli I. Chronic Obstructive Pulmonary Disease in Farmers: A Systematic Review. J Occup Environ Med 2017; 59:775-788. [PMID: 28594705 DOI: 10.1097/jom.0000000000001072] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
OBJECTIVE Chronic obstructive pulmonary disease (COPD) is a significant public health problem but it is unclear whether agricultural work causes an increased risk of disease. The aim of this review was to study COPD risk among farmers and analyze occupational exposures in agricultural workplaces. METHODS A systematic literature search was conducted to identify epidemiological studies investigating COPD prevalence in farmers. RESULTS In the 14 studies reviewed, COPD prevalence ranged from 3% to 68% due to different characteristics of study population, working activities, case definition/diagnosis. Livestock farmers were at higher risk and significant associations were observed for exposure to organic dusts, endotoxins, mites, ammonia, and hydrogen sulfide. CONCLUSIONS Farming work was associated with greater risk of developing COPD. However, considering the several variables that may influence the disease prevalence in farmers, we suggest the adoption of a standardized research strategy.
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Affiliation(s)
- Luca Fontana
- Section of Occupational Medicine, Institute of Public Health, Catholic University of Sacred Heart, Rome (Dr Fontana, Dr Capitanelli); Department of Community Health Systems, University of California San Francisco, San Francisco, California (Dr Lee); Unit of Pneumology, Department of Internal Medicine, Hospital of Vittorio Veneto, Vittorio Veneto (Dr Re); Laboratory of Respiratory Inflammation, IRCCS Istituti Clinici Scientifici Maugeri, Telese Terme, Benevento (Dr Maniscalco); Section of Occupational Medicine, Department of Public Health, University of Naples "Federico II", Naples (Dr Mauriello, Dr Iavicoli), Italy
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Kenessary D, Kenessary A, Kenessariyev UI, Juszkiewicz K, Amrin MK, Erzhanova AE. Human health cost of hydrogen sulfide air pollution from an oil and gas Field. Ann Agric Environ Med 2017; 24:213-216. [PMID: 28664696 DOI: 10.26444/aaem/74562] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Introduction and objective. The Karachaganak oil and gas condensate field (KOGCF), one of the largest in the world, located in the Republic of Kazakhstan (RoK) in Central Asia, is surrounded by 10 settlements with a total population of 9,000 people. Approximately73% of this population constantly mention a specific odour of rotten eggs in the air, typical for hydrogen sulfide (H2S) emissions, and the occurrence of low-level concentrations of hydrogen sulfide around certain industrial installations (esp. oil refineries) is a well known fact. Therefore, this study aimed at determining the impact on human health and the economic damage to the country due to H2S emissions. Materials and method. Dose-response dependency between H2S concentrations in the air and cardiovascular morbidity using multiple regression analysis was applied. Economic damage from morbidity was derived with a newly-developed method, with Kazakhstani peculiarities taken into account. Results.Hydrogen sulfide air pollution due to the KOGCF activity costs the state almost $60,000 per year. Moreover, this is the reason for a more than 40% rise incardiovascular morbidity in the region. Conclusion. The reduction of hydrogen sulfide emissions into the air is recommended, as well as successive constant ambient air monitoring in future. Economic damage evaluation should be made mandatory, on a legal basis, whenever an industrial facility operation results in associated air pollution.
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Affiliation(s)
- Dinara Kenessary
- Kazakh National Medical University, Almaty, Republic of Kazakhstan.
| | - Almas Kenessary
- Kazakh National Medical University, Almaty, Republic of Kazakhstan
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Ling Q, Yu X, Wang T, Wang SG, Ye ZQ, Liu JH. Roles of the Exogenous H2S-Mediated SR-A Signaling Pathway in Renal Ischemia/ Reperfusion Injury in Regulating Endoplasmic Reticulum Stress-Induced Autophagy in a Rat Model. Cell Physiol Biochem 2017; 41:2461-2474. [PMID: 28472786 DOI: 10.1159/000475915] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Accepted: 02/09/2017] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE This study aims to explore the effects of the exogenous hydrogen sulfide (H2S)-mediated scavenger receptor A (SR-A) signaling pathway on renal ischemia/reperfusion injury (IRI) by regulating endoplasmic reticulum (ER) stress-induced autophagy in rats. METHODS A total of 48 normal Sprague-Dawley (SD) rats and SR-A knockout rats were selected and divided into six groups (n = 8): wild-type (WT) + sham, WT + ischemia-reperfusion (I/R), WT + I/R + NaHS, SR-A-/- + sham, SR-A-/- + I/R and SR-A-/- + I/R + NaHS. The concentrations of urinary protein, blood urea nitrogen (BUN), serum creatinine (SCR), malondialdehyde (MDA) and H2S in renal tissue were detected. qRT-PCR and Western blotting were used to detect the mRNA and protein levels of IL-6, TGF-β, SR-A, LC3I, LC3II, P62, PERK, ATF6 and IRE1 pathway-related genes. A TUNEL assay was used to detect cell apoptosis. Electron microscopy was applied to observe the structure of renal autophagosomes. RESULTS Compared with the WT + sham group, in the rates of the WT + I/R group, the urine volume, urinary protein, BUN, SCR and MDA concentrations, the mRNA and protein expression of IL-6, TGF-β, LC3II/I, and ER stress pathway-related genes, the cell apoptosis index, and the number of autophagosomes were significantly increased 24 h after I/R, while P62 and SR-A protein expression and SOD and H2S concentrations were significantly decreased (all P < 0.05). The levels of renal injury, autophagy and ER stress pathway-related genes were decreased in the WT + I/R + NaHS group but were increased in the SR-A-/- + I/R group relative to the WT + I/R group. No significant differences were observed in the urine volume; the concentrations of urinary protein, BUN, SCR and MDA; the SOD activity; the mRNA and protein expression of IL-6, TGF-β, SR-A, GRP78, SR-A, GPR94, ATF4, IRE1, XBP1, ATF6, and eIF2α; the cell apoptosis index; or the number of autophagosomes in rats of the SR-A-/- + I/R and SR-A-/- + I/R + NaHS groups (all P > 0.05). CONCLUSION These results demonstrate that the exogenous H2S-mediated SR-A signaling pathway reduces renal IRI injury by up-regulating ER stress-induced autophagy in rats.
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