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Guo J, Shi J, Qin M, Wang Y, Li Z, Shoji T, Ikezoe T, Ge Y, Xu B. Pharmacological Inhibition of Gasdermin D Suppresses Angiotensin II-Induced Experimental Abdominal Aortic Aneurysms. Biomolecules 2023; 13:899. [PMID: 37371479 DOI: 10.3390/biom13060899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 05/08/2023] [Accepted: 05/11/2023] [Indexed: 06/29/2023] Open
Abstract
BACKGROUND Gasdermin D, a molecule downstream of the nucleotide-binding oligomerization domain-like receptor family pyrin domain containing inflammasome, forms the membrane pore for the secretion of interleukin (IL)-1β and IL-18, and also mediates pyroptosis. This study was to explore the influence of treatment with disulfiram, a small molecule inhibitor to gasdermin D, on the formation and progression of experimental abdominal aortic aneurysms (AAA). METHODS AAAs were induced in 10-week-old male apolipoprotein E deficient mice by subcutaneous infusion of angiotensin II (1000 ng/min/kg body weight) for 28 days via osmotic minipumps. Three days prior to angiotensin II infusion, disulfiram (50 mg/kg) or an equal volume of saline as the vehicle control was administered daily via oral gavage. The influence on experimental AAAs was analyzed by serial measurements of aortic diameters via ultrasonography, grading AAA severity and histopathology at sacrifice. Serum IL-1β and IL-18 levels, systolic blood pressure, total cholesterol, and triglyceride were also measured. Additional experiments assayed the influences on the cell viability and IL-1β secretion of in vitro activated macrophages. RESULTS Disulfiram significantly reduced the enlargement, incidence, and severity of angiotensin II-induced experimental AAAs with attenuation of medial elastin breaks, mural macrophage accumulation, and systolic blood pressure. The AAA suppression was also associated with reduced systemic levels of IL-1β but not IL-18. However, disulfiram treatment had no impact on body weight gain and lipid levels in aneurysmal mice. Additionally, disulfiram treatment also markedly reduced the secretion of IL-1β from activated macrophages with a limited effect on cell viability in vitro. CONCLUSIONS Gasdermin D inhibition by disulfiram attenuated angiotensin II-induced experimental AAAs with reduced systemic IL-1β levels and in vitro activated macrophage IL-1β secretion. Our study suggests that pharmacological gasdermin D inhibition may have translational potential for limiting clinical AAA progression.
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Affiliation(s)
- Jia Guo
- Center for Hypertension Care, Shanxi Medical University First Hospital, Taiyuan 030001, China
- Department of Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Jinyun Shi
- Center for Hypertension Care, Shanxi Medical University First Hospital, Taiyuan 030001, China
| | - Min Qin
- Center for Hypertension Care, Shanxi Medical University First Hospital, Taiyuan 030001, China
| | - Yan Wang
- Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing 100191, China
| | - Zhidong Li
- Department of Pharmacology, Shanxi Medical University, Taiyuan 030001, China
| | - Takahiro Shoji
- Department of Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Toru Ikezoe
- Department of Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Yingbin Ge
- Department of Physiology, Nanjing Medical University, Nanjing 211166, China
| | - Baohui Xu
- Department of Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA
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Zhang K, Dong R, Sun K, Wang X, Wang J, Yang CS, Zhang J. Synergistic toxicity of epigallocatechin-3-gallate and diethyldithiocarbamate, a lethal encounter involving redox-active copper. Free Radic Biol Med 2017; 113:143-156. [PMID: 28974447 DOI: 10.1016/j.freeradbiomed.2017.09.027] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Revised: 09/09/2017] [Accepted: 09/27/2017] [Indexed: 01/20/2023]
Abstract
Dithiocarbamates (DTC) are widely used in agricultural, industrial and therapeutic domains. There are ample opportunities for human exposure to DTC. Green tea extracts, with epigallocatechin-3-gallate (EGCG) being the most abundant constituent, have been used as dietary supplements for body weight reduction. Our hypothesis is that DTC can act as a copper ionophore to increase hepatic levels of redox-active copper which promotes EGCG auto-oxidation to produce oxidative stress and toxicity. The results of the present study in a mouse model is consistent with this hypothesis, showing that co-administration of EGCG and diethyldithiocarbamate - a metabolite of disulfiram (a drug for alcohol aversion therapy), both at tolerable levels, caused lethality. The liver was the major organ site of toxicity. The co-administration drastically increased lipid peroxidation, DNA damage and cell apoptosis as well as caused deleterious transcriptional responses including basal and Nrf2 antioxidant systems in the liver. The results suggest that exposure to DTC reduces toxic threshold of dietary polyphenols from green tea and possibly other plants, and vice versa. This novel hypothesis is important to human health, and the dose-response relationship of this synergistic toxicity needs to be further characterized.
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Affiliation(s)
- Ke Zhang
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea & Food Science, Anhui Agricultural University, Hefei, Anhui, China
| | - Ruixia Dong
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea & Food Science, Anhui Agricultural University, Hefei, Anhui, China
| | - Kang Sun
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea & Food Science, Anhui Agricultural University, Hefei, Anhui, China
| | - Xiaoxiao Wang
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea & Food Science, Anhui Agricultural University, Hefei, Anhui, China
| | - Jiajia Wang
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea & Food Science, Anhui Agricultural University, Hefei, Anhui, China
| | - Chung S Yang
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ, USA; International Joint Research Laboratory of Tea Chemistry and Health Effects, Anhui Agricultural University, Hefei, Anhui, China
| | - Jinsong Zhang
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea & Food Science, Anhui Agricultural University, Hefei, Anhui, China; International Joint Research Laboratory of Tea Chemistry and Health Effects, Anhui Agricultural University, Hefei, Anhui, China.
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Gessner PK. A Straightforward Method for the Study of Drug Interactions: An Isobolographic Analysis Primer. ACTA ACUST UNITED AC 2016. [DOI: 10.3109/10915818809014529] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The study of drug interactions presents investigators with questions about both experimental design and interpretation of results that easily can become complex and confusing. Among the advantages of the isobolographic method is that it leads to rational experimental design and renders both the descriptive and analytical considerations of results obtained relatively simple and straightforward. In particular, the descriptive use of the method is such that it permits experimenters to express compactly and unambiguously the salient features of the observed interaction.
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Maninang JS, Lopido-Sese LRC, Lizada MCC, Gemma H. The influence of durian (Durio zibethinus Murray cv. Monthong) on conditioned taste aversion to ethanol. Food Chem 2012. [DOI: 10.1016/j.foodchem.2011.09.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Maninang JS, Lizada MCC, Gemma H. Inhibition of aldehyde dehydrogenase enzyme by Durian (Durio zibethinus Murray) fruit extract. Food Chem 2009. [DOI: 10.1016/j.foodchem.2009.03.106] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Closon C, Didone V, Tirelli E, Quertemont E. Acetaldehyde and the hypothermic effects of ethanol in mice. Alcohol Clin Exp Res 2009; 33:2005-14. [PMID: 19719790 DOI: 10.1111/j.1530-0277.2009.01039.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Acetaldehyde, the first metabolite of ethanol, has been suggested to be involved in many behavioral effects of ethanol. However, few studies have investigated the hypothermic effects of acetaldehyde or the contribution of acetaldehyde to ethanol-induced hypothermia. The aim of the present study is to better understand the hypothermic effects of acetaldehyde and the possible contribution of acetaldehyde in ethanol-induced hypothermia, especially under conditions leading to acetaldehyde accumulation. METHODS Female Swiss mice were injected intraperitoneally with ethanol and acetaldehyde and their rectal temperatures were measured with a digital thermometer at various time points after the injections. Experiment 1 compared the hypothermic effects of various acetaldehyde doses (0 to 300 mg/kg) with a reference dose of ethanol (3 g/kg). Experiment 2 tested the effects of a pretreatment with the aldehyde dehydrogenase (ALDH) inhibitor cyanamide (25 mg/kg) on ethanol- and acetaldehyde-induced hypothermia. In experiments 3 and 4, mice received a combined pretreatment with cyanamide and the alcohol dehydrogenase (ADH) inhibitor 4-Methylpyrazole (10 mg/kg) before the injection of ethanol or acetaldehyde. RESULTS Acetaldehyde at doses between 100 and 300 mg/kg induced significant hypothermic effects, but of shorter duration than ethanol-induced hypothermia. The inhibition of ALDH enzymes by cyanamide induced a strong potentiation of both ethanol- and acetaldehyde-induced hypothermia. The pretreatment with 4-MP prevented the potentiation of ethanol-induced hypothermia by cyanamide, but slightly increased the potentiation of acetaldehyde-induced hypothermia by cyanamide. CONCLUSIONS The results of the present study clearly show that acetaldehyde has hypothermic properties in mice at least at relatively high concentrations. Furthermore, the accumulation of acetaldehyde following ALDH inhibition strongly enhanced the hypothermic effects of ethanol. These latter results confirm the hypothermic properties of acetaldehyde and show that acetate, the next step in ethanol metabolism, is not involved in these hypothermic effects. Finally, the experiment with 4-MP indicates that the potentiating effects of cyanamide are mediated by the peripheral accumulation of acetaldehyde, which then reaches the brain to induce a severe hypothermia.
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Affiliation(s)
- Catherine Closon
- Centre de Neurosciences Cognitives et Comportementales, Université de Liège, Liège, Belgium
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Moncada C, Fuentes N, Lladser A, Encina G, Sapag A, Karahanian E, Israel Y. Use of an "acetaldehyde clamp" in the determination of low-KM aldehyde dehydrogenase activity in H4-II-E-C3 rat hepatoma cells. Alcohol 2003; 31:19-24. [PMID: 14615007 DOI: 10.1016/j.alcohol.2003.06.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The high-affinity (K(M)<1 microM) mitochondrial class 2 aldehyde dehydrogenase (ALDH2) metabolizes most of the acetaldehyde generated in the hepatic oxidation of ethanol. H4-II-E-C3 rat hepatoma cells have been found to express ALDH2. We report a method to assess ALDH2 activity in intact hepatoma cells that does not require mitochondrial isolation. To determine only the high-affinity ALDH2 activity it is necessary to keep constant low concentrations of acetaldehyde in the cells to minimize its metabolism by high-K(M) aldehyde dehydrogenases. To maintain both low and constant concentrations of acetaldehyde we used an "acetaldehyde clamp," which keeps acetaldehyde at a concentration of 4.2+/-0.4 microM. The clamp is attained by addition of excess yeast alcohol dehydrogenase, 14C-ethanol, and oxidized form of nicotinamide adenine dinucleotide (NAD(+)) to the hepatoma cell culture medium. The concentration of 14C-acetaldehyde attained follows the equilibrium constant of the alcohol dehydrogenase reaction. Thus, 14C-acetate is generated virtually by the low-K(M) aldehyde dehydrogenase activity. 14C-acetate is separated from the culture medium by an anionic resin and its radioactivity is determined. We showed that (1) acetate production is linear for 120 min, (2) addition of 160 microM cyanamide to the culture medium leads to a 75%-80% reduction of acetate generated, and (3) ALDH2 activity is dependent on cell-to-cell contact and increases after cells reach confluence. The clamp system allows the determination of ALDH2 activity in less than one million H4-II-E-C3 rat hepatoma cells. The specificity and sensitivity of the "acetaldehyde clamp" assay should be of value in evaluation of the effects of new agents that modify Aldh2 gene expression, as well as in the study of ALDH2 regulation in intact cells.
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Affiliation(s)
- Claudio Moncada
- Department of Pharmacological and Toxicological Chemistry, Faculty of Chemical and Pharmaceutical Sciences, and Millennium Institute for Advanced Studies in Cell Biology and Biotechnology, University of Chile, Santiago, Chile.
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Cottalasso D, Bellocchio A, Pronzato MA, Domenicotti C, Traverso N, Gianelli MV, Marinari UM, Nanni G. Effect of Ethanol Administration on the Level of Dolichol in Rat Liver Microsomes and Golgi Apparatus. Alcohol Clin Exp Res 1998. [DOI: 10.1111/j.1530-0277.1998.tb04318.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Kera Y, Ohbora Y, Komura S. The metabolism of acetaldehyde and not acetaldehyde itself is responsible for in vivo ethanol-induced lipid peroxidation in rats. Biochem Pharmacol 1988; 37:3633-8. [PMID: 3178876 DOI: 10.1016/0006-2952(88)90395-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
A single oral administration of ethanol (5 g/kg) to rats induced a marked increase in lipid peroxidation, in the liver and kidney within 9 hr, as assessed by malondialdehyde accumulation. The pretreatment with alcohol dehydrogenase (ADH) inhibitor, 4-methylpyrazole (1 mmol/kg) caused approximately 50% inhibition of the hepatic ADH activity and abolished this ethanol-induced lipid peroxidation. The disulfiram treatment (100 mg/kg) significantly inhibited 63% of the hepatic low Km aldehyde dehydrogenase (ALDH) but not the high Km ALDH. The cyanamide treatment (15 mg/kg) effectively decreased 83% of the low Km and 70% of the high Km ALDH in the liver. Although there was more than a 20-fold elevation of acetaldehyde levels by the inhibition of acetaldehyde metabolism with disulfiram or cyanamide, the ethanol-induced lipid peroxidation was significantly suppressed by pretreatment with these drugs. More than 90% inhibition of xanthine oxidase and dehydrogenase by the pretreatment with allopurinol (100 mg/kg), with no effect on the hepatic ADH and ALDH activities, did not alter the enhancement of lipid peroxidation following ethanol administration. We propose that the metabolism of acetaldehyde (probably via the low Km ALDH) and not acetaldehyde itself is responsible for the ethanol-induced lipid peroxidation in vivo and that the contribution of xanthine oxidase, as an initiator of lipid peroxidation through acetaldehyde oxidation is minute during acute intoxication.
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Affiliation(s)
- Y Kera
- Department of Legal Medicine, Kyoto Prefectural University of Medicine, Japan
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Sinclair JD. The feasibility of effective psychopharmacological treatments for alcoholism. BRITISH JOURNAL OF ADDICTION 1987; 82:1213-23. [PMID: 2892522 DOI: 10.1111/j.1360-0443.1987.tb00419.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Carmichael FJ, Israel Y, Saldivia V, Giles HG, Meggiorini S, Orrego H. Blood acetaldehyde and the ethanol-induced increase in splanchnic circulation. Biochem Pharmacol 1987; 36:2673-8. [PMID: 3606666 DOI: 10.1016/0006-2952(87)90550-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Acute oral administration of ethanol significantly increases (50-60%) portal blood flow to the liver. As earlier studies have indicated that this effect is maximal at concentrations of ethanol that saturate the alcohol dehydrogenase (ADH) system and is blocked by the ADH inhibitor 4-methylpyrazol, we investigated the possible role of acetaldehyde, a product in the ADH reaction, as a mediator of this effect. In the first series of experiments it was shown that, contrary to expectations, cyanamide administration prior to alcohol suppressed fully the effect of ethanol on portal blood flow without altering it in the absence of ethanol [ethanol = 69.5 +/- 5.6; ethanol + cyanamide 42.9 +/- 2.4; control = 43.0 +/- 3.0; cyanamide = 55.1 +/- 3.7 ml X min-1 X (kg body wt)-1]. Arterial blood concentrations of acetaldehyde were elevated from 3.6 +/- 0.3 microM in the presence of ethanol to 293 +/- 48 microM in the presence of ethanol + cyanamide. Infusion of acetaldehyde either into the left ventricle, resulting in arterial blood acetaldehyde levels of 227 +/- 77 microM, or into the portal circulation, resulting in arterial blood levels of 198 +/- 40 microM, did not modify portal blood flow or splanchnic hemodynamics, nor the effect of ethanol per se. The combination of cyanamide + ethanol significantly reduced total peripheral resistance (from 28 +/- 3 to 19 +/- 2 dyne X cm X sec-5), while neither ethanol or cyanamide per se, nor acetaldehyde affected total peripheral resistance. Data suggest that acetaldehyde is not involved in the ethanol-mediated increase in portal vein flow. Further studies indicate that the effects of cyanamide in suppressing the ethanol-induced increase in portal blood flow and increasing total peripheral resistance appear to be related to an ethanol-cyanamide interaction which is independent of the acetaldehyde levels in the circulation.
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