1
|
Johny M, Manikandan A, Rajendar G. TMSCl Promoted Direct Conversion of Cyclic Anhydrides to (Un)Symmetric-Diesters/Amide Esters. Chem Asian J 2023:e202301017. [PMID: 38098177 DOI: 10.1002/asia.202301017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 12/13/2023] [Indexed: 01/13/2024]
Abstract
We present a mild, efficient, and one-pot method for the silyl-promoted transformation of cyclic anhydrides into homo- and hetero-dicarboxylic acid diesters and amide esters. This versatile reaction operates under ambient conditions, on a gram scale, and accommodates a wide range of alcohols, amines, and cyclic anhydrides. The one-pot process involves a two-step sequence, starting with the nucleophilic opening of anhydride by an amine or alcohol, followed by esterification. TMSCl serves a dual role, acting as a sacrificial reagent to remove in situ water and as a Lewis acid to promote the anhydride opening. The reaction proceeds successfully in the absence and presence of a base, as confirmed by NMR and crossover experiments, which validated the formation of dicarboxylic acid monoester and alkyl silyl mixed diester respectively. Controlled experiments have shown that the one-pot process yields higher efficiencies when compared to the same reaction conducted using a two-step process. This is the first comprehensive study demonstrating a broad substrate scope for the conversion of cyclic anhydride into diesters and amide esters. The method finds application in the synthesis of various commercial plasticizers.
Collapse
Affiliation(s)
- Meera Johny
- School of Chemistry, Indian Institute of Science Education and Research, 695551, Thiruvananthapuram, Kerala, India
| | - Amuda Manikandan
- School of Chemistry, Indian Institute of Science Education and Research, 695551, Thiruvananthapuram, Kerala, India
| | - Goreti Rajendar
- School of Chemistry, Indian Institute of Science Education and Research, 695551, Thiruvananthapuram, Kerala, India
| |
Collapse
|
2
|
Zolondick AA, Gaudino G, Xue J, Pass HI, Carbone M, Yang H. Asbestos-induced chronic inflammation in malignant pleural mesothelioma and related therapeutic approaches-a narrative review. PRECISION CANCER MEDICINE 2021; 4. [PMID: 35098108 PMCID: PMC8797751 DOI: 10.21037/pcm-21-12] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Objective: The aim of this review is addressing the mechanisms of asbestos carcinogenesis, including chronic inflammation and autophagy-mediated cell survival, and propose potential innovative therapeutic targets to prevent mesothelioma development or improve drug efficacy by reducing inflammation and autophagy. Background: Diffuse malignant pleural mesothelioma is an aggressive cancer predominantly related to chronic inflammation caused by asbestos exposure. Millions of individuals have been exposed to asbestos or to other carcinogenic mineral fibers occupationally or environmentally, resulting in an increased risk of developing mesothelioma. Overall patient survival rates are notably low (about 8–14 months from the time of diagnosis) and mesothelioma is resistant to existing therapies. Additionally, individuals carrying inactivating germline mutations in the BRCA-associated protein 1 (BAP1) gene and other genes are predisposed to developing cancers, prevalently mesothelioma. Their risk of developing mesothelioma further increases upon exposure to asbestos. Recent studies have revealed the mechanisms and the role of inflammation in asbestos carcinogenesis. Biomarkers for asbestos exposure and malignant mesothelioma have also been identified. These findings are leading to the development of novel therapeutic approaches to prevent or delay the growth of mesothelioma. Methods: Review of full length manuscripts published in English from January 1980 to February 2021 gathered from PubMed.gov from the National Center of Biotechnology Information and the National Library of Medicine were used to inform this review. Conclusion: Key regulators of chronic inflammation mediate asbestos-driven mesothelial cell transformation and survival through autophagic pathways. Recent studies have elucidated some of the key mechanisms involved in asbestos-induced chronic inflammation, which are largely driven by extracellular high mobility group box 1 (HMGB1). Upon asbestos exposure, mesothelial cells release HMGB1 from the nucleus to the cytoplasm and extracellular space, where HMGB1 initiates an inflammatory response. HMGB1 translocation and release also activates autophagy and other pro-survival mechanisms, which promotes mesothelioma development. HMGB1 is currently being investigated as a biomarker to detect asbestos exposure and to detect mesothelioma development in its early stage when therapy is more effective. In parallel, several approaches inhibiting HMGB1 activities have been studied and have shown promising results. Moreover, additional cytokines, such as IL-1β and TNF-α are being targeted to interfere with the inflammatory process that drives mesothelioma growth. Developing early detection methods and novel therapeutic strategies is crucial to prolong overall survival of patients with mesothelioma. Novel therapies targeting regulators of asbestos-induced inflammation to reduce mesothelioma growth may lead to clinical advancements to benefit patients with mesothelioma.
Collapse
Affiliation(s)
- Alicia A Zolondick
- University of Hawai'i Cancer Center, Honolulu, HI, USA.,Department of Molecular Biosciences and Bioengineering, University of Hawai'i at Manoa, Honolulu, HI, USA
| | | | - Jiaming Xue
- University of Hawai'i Cancer Center, Honolulu, HI, USA.,University of Hawai'i, John A. Burns School of Medicine, Honolulu, HI, USA
| | - Harvey I Pass
- Department of Cardiothoracic Surgery, New York University Langone Medical Center, New York, NY, USA
| | | | - Haining Yang
- University of Hawai'i Cancer Center, Honolulu, HI, USA
| |
Collapse
|
3
|
Api AM, Belmonte F, Belsito D, Biserta S, Botelho D, Bruze M, Burton GA, Buschmann J, Cancellieri MA, Dagli ML, Date M, Dekant W, Deodhar C, Fryer AD, Gadhia S, Jones L, Joshi K, Lapczynski A, Lavelle M, Liebler DC, Na M, O'Brien D, Patel A, Penning TM, Ritacco G, Rodriguez-Ropero F, Romine J, Sadekar N, Salvito D, Schultz TW, Siddiqi F, Sipes IG, Sullivan G, Thakkar Y, Tokura Y, Tsang S. RIFM fragrance ingredient safety assessment, ethyl pyruvate, CAS Registry Number 617-35-6. Food Chem Toxicol 2019; 134 Suppl 2:111008. [PMID: 31783108 DOI: 10.1016/j.fct.2019.111008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Accepted: 11/25/2019] [Indexed: 11/15/2022]
Affiliation(s)
- A M Api
- Research Institute for Fragrance Materials, Inc., 50 Tice Boulevard, Woodcliff Lake, NJ, 07677, USA
| | - F Belmonte
- Research Institute for Fragrance Materials, Inc., 50 Tice Boulevard, Woodcliff Lake, NJ, 07677, USA
| | - D Belsito
- Member RIFM Expert Panel, Columbia University Medical Center, Department of Dermatology, 161 Fort Washington Ave., New York, NY, 10032, USA
| | - S Biserta
- Research Institute for Fragrance Materials, Inc., 50 Tice Boulevard, Woodcliff Lake, NJ, 07677, USA
| | - D Botelho
- Research Institute for Fragrance Materials, Inc., 50 Tice Boulevard, Woodcliff Lake, NJ, 07677, USA
| | - M Bruze
- Member RIFM Expert Panel, Malmo University Hospital, Department of Occupational & Environmental Dermatology, Sodra Forstadsgatan 101, Entrance 47, Malmo, SE-20502, Sweden
| | - G A Burton
- Member RIFM Expert Panel, School of Natural Resources & Environment, University of Michigan, Dana Building G110, 440 Church St., Ann Arbor, MI, 58109, USA
| | - J Buschmann
- Member RIFM Expert Panel, Fraunhofer Institute for Toxicology and Experimental Medicine, Nikolai-Fuchs-Strasse 1, 30625, Hannover, Germany
| | - M A Cancellieri
- Research Institute for Fragrance Materials, Inc., 50 Tice Boulevard, Woodcliff Lake, NJ, 07677, USA
| | - M L Dagli
- Member RIFM Expert Panel, University of Sao Paulo, School of Veterinary Medicine and Animal Science, Department of Pathology, Av. Prof. dr. Orlando Marques de Paiva, 87, Sao Paulo, CEP 05508-900, Brazil
| | - M Date
- Research Institute for Fragrance Materials, Inc., 50 Tice Boulevard, Woodcliff Lake, NJ, 07677, USA
| | - W Dekant
- Member RIFM Expert Panel, University of Wuerzburg, Department of Toxicology, Versbacher Str. 9, 97078, Würzburg, Germany
| | - C Deodhar
- Research Institute for Fragrance Materials, Inc., 50 Tice Boulevard, Woodcliff Lake, NJ, 07677, USA
| | - A D Fryer
- Member RIFM Expert Panel, Oregon Health Science University, 3181 SW Sam Jackson Park Rd., Portland, OR, 97239, USA
| | - S Gadhia
- Research Institute for Fragrance Materials, Inc., 50 Tice Boulevard, Woodcliff Lake, NJ, 07677, USA
| | - L Jones
- Research Institute for Fragrance Materials, Inc., 50 Tice Boulevard, Woodcliff Lake, NJ, 07677, USA
| | - K Joshi
- Research Institute for Fragrance Materials, Inc., 50 Tice Boulevard, Woodcliff Lake, NJ, 07677, USA
| | - A Lapczynski
- Research Institute for Fragrance Materials, Inc., 50 Tice Boulevard, Woodcliff Lake, NJ, 07677, USA
| | - M Lavelle
- Research Institute for Fragrance Materials, Inc., 50 Tice Boulevard, Woodcliff Lake, NJ, 07677, USA
| | - D C Liebler
- Member RIFM Expert Panel, Vanderbilt University School of Medicine, Department of Biochemistry, Center in Molecular Toxicology, 638 Robinson Research Building, 2200 Pierce Avenue, Nashville, TN, 37232-0146, USA
| | - M Na
- Research Institute for Fragrance Materials, Inc., 50 Tice Boulevard, Woodcliff Lake, NJ, 07677, USA
| | - D O'Brien
- Research Institute for Fragrance Materials, Inc., 50 Tice Boulevard, Woodcliff Lake, NJ, 07677, USA
| | - A Patel
- Research Institute for Fragrance Materials, Inc., 50 Tice Boulevard, Woodcliff Lake, NJ, 07677, USA
| | - T M Penning
- Member of RIFM Expert Panel, University of Pennsylvania, Perelman School of Medicine, Center of Excellence in Environmental Toxicology, 1316 Biomedical Research Building (BRB) II/III, 421 Curie Boulevard, Philadelphia, PA, 19104-3083, USA
| | - G Ritacco
- Research Institute for Fragrance Materials, Inc., 50 Tice Boulevard, Woodcliff Lake, NJ, 07677, USA
| | - F Rodriguez-Ropero
- Research Institute for Fragrance Materials, Inc., 50 Tice Boulevard, Woodcliff Lake, NJ, 07677, USA
| | - J Romine
- Research Institute for Fragrance Materials, Inc., 50 Tice Boulevard, Woodcliff Lake, NJ, 07677, USA
| | - N Sadekar
- Research Institute for Fragrance Materials, Inc., 50 Tice Boulevard, Woodcliff Lake, NJ, 07677, USA
| | - D Salvito
- Research Institute for Fragrance Materials, Inc., 50 Tice Boulevard, Woodcliff Lake, NJ, 07677, USA
| | - T W Schultz
- Member RIFM Expert Panel, The University of Tennessee, College of Veterinary Medicine, Department of Comparative Medicine, 2407 River Dr., Knoxville, TN, 37996- 4500, USA
| | - F Siddiqi
- Research Institute for Fragrance Materials, Inc., 50 Tice Boulevard, Woodcliff Lake, NJ, 07677, USA
| | - I G Sipes
- Member RIFM Expert Panel, Department of Pharmacology, University of Arizona, College of Medicine, 1501 North Campbell Avenue, P.O. Box 245050, Tucson, AZ, 85724-5050, USA
| | - G Sullivan
- Research Institute for Fragrance Materials, Inc., 50 Tice Boulevard, Woodcliff Lake, NJ, 07677, USA.
| | - Y Thakkar
- Research Institute for Fragrance Materials, Inc., 50 Tice Boulevard, Woodcliff Lake, NJ, 07677, USA
| | - Y Tokura
- Member RIFM Expert Panel, The Journal of Dermatological Science (JDS), Editor-in-Chief, Professor and Chairman, Department of Dermatology, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, 431-3192, Japan
| | - S Tsang
- Research Institute for Fragrance Materials, Inc., 50 Tice Boulevard, Woodcliff Lake, NJ, 07677, USA
| |
Collapse
|
4
|
Pellegrini L, Xue J, Larson D, Pastorino S, Jube S, Forest KH, Saad-Jube ZS, Napolitano A, Pagano I, Negi VS, Bianchi ME, Morris P, Pass HI, Gaudino G, Carbone M, Yang H. HMGB1 targeting by ethyl pyruvate suppresses malignant phenotype of human mesothelioma. Oncotarget 2017; 8:22649-22661. [PMID: 28186988 PMCID: PMC5410252 DOI: 10.18632/oncotarget.15152] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Accepted: 01/23/2017] [Indexed: 12/20/2022] Open
Abstract
Human malignant mesothelioma (MM) is an aggressive cancer linked to asbestos and erionite exposure. We previously reported that High-Mobility Group Box-1 protein (HMGB1), a prototypic damage-associated molecular pattern, drives MM development and sustains MM progression. Moreover, we demonstrated that targeting HMGB1 inhibited MM cell growth and motility in vitro, reduced tumor growth in vivo, and prolonged survival of MM-bearing mice. Ethyl pyruvate (EP), the ethyl ester of pyruvic acid, has been shown to be an effective HMGB1 inhibitor in inflammation-related diseases and several cancers. Here, we studied the effect of EP on the malignant phenotype of MM cells in tissue culture and on tumor growth in vivo using an orthotopic MM xenograft model. We found that EP impairs HMGB1 secretion by MM cells leading to reduced RAGE expression and NF-κB activation. As a consequence, EP impaired cell motility, cell proliferation, and anchorage-independent growth of MM cells. Moreover, EP reduced HMGB1 serum levels in mice and inhibited the growth of MM xenografts. Our results indicate that EP effectively hampers the malignant phenotype of MM, offering a novel potential therapeutic approach to patients afflicted with this dismal disease.
Collapse
Affiliation(s)
- Laura Pellegrini
- University of Hawai'i Cancer Center, University of Hawai'i at Manoa, Honolulu, HI, USA
| | - Jiaming Xue
- University of Hawai'i Cancer Center, University of Hawai'i at Manoa, Honolulu, HI, USA.,Leeward Community College, Mathematics and Sciences Division, University of Hawai'i System, Pearl City, HI, USA
| | - David Larson
- University of Hawai'i Cancer Center, University of Hawai'i at Manoa, Honolulu, HI, USA
| | - Sandra Pastorino
- University of Hawai'i Cancer Center, University of Hawai'i at Manoa, Honolulu, HI, USA
| | - Sandro Jube
- University of Hawai'i at Manoa, Department of Cell and Molecular Biology, John A. Burns School of Medicine, Honolulu, HI, USA
| | - Kelly H Forest
- Leeward Community College, Mathematics and Sciences Division, University of Hawai'i System, Pearl City, HI, USA
| | - Zeyana Salim Saad-Jube
- University of Hawai'i at Manoa, Myron B. Thompson School of Social Work, Office of Public Health and Center on Aging, Honolulu, HI, USA
| | - Andrea Napolitano
- University of Hawai'i Cancer Center, University of Hawai'i at Manoa, Honolulu, HI, USA.,University of Hawai'i at Manoa, Department of Molecular Biosciences and Bioengineering, Honolulu, HI, USA
| | - Ian Pagano
- University of Hawai'i Cancer Center, University of Hawai'i at Manoa, Honolulu, HI, USA
| | - Vishal S Negi
- University of Hawai'i at Manoa, Department of Molecular Biosciences and Bioengineering, Honolulu, HI, USA
| | - Marco E Bianchi
- San Raffaele University and Research Institute, Milan, Italy
| | - Paul Morris
- Department of Thoracic Surgery, Queen's Medical Center, Honolulu, HI, USA
| | - Harvey I Pass
- New York University School of Medicine, Department of Cardiothoracic Surgery, New York, NY, USA
| | - Giovanni Gaudino
- University of Hawai'i Cancer Center, University of Hawai'i at Manoa, Honolulu, HI, USA
| | - Michele Carbone
- University of Hawai'i Cancer Center, University of Hawai'i at Manoa, Honolulu, HI, USA
| | - Haining Yang
- University of Hawai'i Cancer Center, University of Hawai'i at Manoa, Honolulu, HI, USA
| |
Collapse
|
5
|
Saito K, Hasegawa-Baba Y, Sekiya F, Hayashi SM, Mirokuji Y, Okamura H, Maruyama S, Ono A, Nakajima M, Degawa M, Ozawa S, Shibutani M, Maitani T. Japan Flavour and Fragrance Materials Association's (JFFMA) safety assessment of food-flavouring substances uniquely used in Japan that belong to the class of aliphatic primary alcohols, aldehydes, carboxylic acids, acetals and esters containing additional oxygenated functional groups. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2017; 34:1474-1484. [PMID: 28540764 DOI: 10.1080/19440049.2017.1333160] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
We performed a safety evaluation using the procedure devised by the Joint FAO/WHO Expert Committee on Food Additives (JECFA) of the following four flavouring substances that belong to the class of 'aliphatic primary alcohols, aldehydes, carboxylic acids, acetals, and esters containing additional oxygenated functional groups' and are uniquely used in Japan: butyl butyrylacetate, ethyl 2-hydroxy-4-methylpentanoate, 3-hydroxyhexanoic acid and methyl hydroxyacetate. Although no genotoxicity study data were found in the published literature, none of the four substances had chemical structural alerts predicting genotoxicity. All four substances were categorised as class I by using Cramer's classification. The estimated daily intake of each of the four substances was determined to be 0.007-2.9 μg/person/day by using the maximised survey-derived intake method and based on the annual production data in Japan in 2001, 2005 and 2010, and was determined to be 0.250-600.0 μg/person/day by using the single-portion exposure technique and based on average-use levels in standard portion sizes of flavoured foods. Both of these estimated daily intake ranges were below the threshold of toxicological concern for class I substances, which is 1800 μg/person/day. Although no information from in vitro and in vivo toxicity studies for the four substances was available, these substances were judged to raise no safety concerns at the current levels of intake.
Collapse
Affiliation(s)
- Kenji Saito
- a Safety Assessment Division, Japan Flavour and Fragrance Materials Association (JFFMA) , Tokyo , Japan
| | - Yasuko Hasegawa-Baba
- b Laboratory of Veterinary Pathology , Tokyo University of Agriculture and Technology , Tokyo , Japan
| | - Fumiko Sekiya
- a Safety Assessment Division, Japan Flavour and Fragrance Materials Association (JFFMA) , Tokyo , Japan
| | - Shim-Mo Hayashi
- a Safety Assessment Division, Japan Flavour and Fragrance Materials Association (JFFMA) , Tokyo , Japan
| | - Yoshiharu Mirokuji
- a Safety Assessment Division, Japan Flavour and Fragrance Materials Association (JFFMA) , Tokyo , Japan
| | - Hiroyuki Okamura
- a Safety Assessment Division, Japan Flavour and Fragrance Materials Association (JFFMA) , Tokyo , Japan
| | - Shinpei Maruyama
- a Safety Assessment Division, Japan Flavour and Fragrance Materials Association (JFFMA) , Tokyo , Japan
| | - Atsushi Ono
- c Division of Risk Assessment , National Institute of Health Sciences , Tokyo , Japan
| | - Madoka Nakajima
- d Education and Research Department, School of Pharmaceutical Sciences , University of Shizuoka , Shizuoka , Japan
| | - Masakuni Degawa
- e Department of Molecular Toxicology, School of Pharmaceutical Sciences , University of Shizuoka , Shizuoka , Japan
| | - Shogo Ozawa
- f Department of Pharmacodynamics and Molecular Genetics, School of Pharmacy , Iwate Medical University , Iwate , Japan
| | - Makoto Shibutani
- b Laboratory of Veterinary Pathology , Tokyo University of Agriculture and Technology , Tokyo , Japan
| | - Tamio Maitani
- g Division of Foods, National Institute of Health Sciences , Tokyo , Japan
| |
Collapse
|
6
|
Fiume MM, eldreth HB, Bergfeld WF, Belsito DV, Hill RA, Klaassen CD, Liebler D, Marks JG, Shank RC, Slaga TJ, Snyder PW, Andersen FA. Final Report of the Cosmetic Ingredient Review Expert Panel on the Safety Assessment of Dicarboxylic Acids, Salts, and Esters. Int J Toxicol 2012; 31:5S-76S. [DOI: 10.1177/1091581812447203] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The CIR Expert Panel assessed the safety of dicarboxylic acids and their salts and esters as used in cosmetics. Most dicarboxylic acids function in cosmetics as pH adjusters or fragrance ingredients, but the functions of most of the salts in cosmetics are not reported. Some of the esters function as skin conditioning or fragrance ingredients, plasticizers, solvents, or emollients. The Expert Panel noted gaps in the available safety data for some of the dicarboxylic acid and their salts and esters in this safety assessment. The available data on many of the ingredients are sufficient, however, and similar structural activity relationships, biologic functions, and cosmetic product usage suggest that the available data may be extrapolated to support the safety of the entire group. The Panel concluded that the ingredients named in this report are safe in the present practices of use and concentration.
Collapse
|
7
|
Scientific Opinion on Flavouring Group Evaluation 10, Revision 3 (FGE.10Rev3): Aliphatic primary and secondary saturated and unsaturated alcohols, aldehydes, acetals, carboxylic acids and esters containing an additional oxygenated functional group and lactones from chemical groups 9, 13 and 30. EFSA J 2012. [DOI: 10.2903/j.efsa.2012.2563] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
|
8
|
Scientific Opinion on Flavouring Group Evaluation 10, Revision 2 (FGE.10Rev2): Aliphatic primary and secondary saturated and unsaturated alcohols, aldehydes, acetals, carboxylic acids and esters containing an additional oxygenated functional group and lactones from chemical groups 9, 13 and 30. EFSA J 2011. [DOI: 10.2903/j.efsa.2011.2164] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
|
9
|
Scientific Opinion on Flavouring Group Evaluation 92 (FGE.92): Consideration of aliphatic acyclic diols, triols, and related substances evaluated by JECFA (68th meeting) structurally related to aliphatic primary and secondary saturated and unsaturated alc. EFSA J 2010. [DOI: 10.2903/j.efsa.2010.1453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
|
10
|
Davé SH, Tilstra JS, Matsuoka K, Li F, DeMarco RA, Beer-Stolz D, Sepulveda AR, Fink MP, Lotze MT, Plevy SE. Ethyl pyruvate decreases HMGB1 release and ameliorates murine colitis. J Leukoc Biol 2009; 86:633-43. [PMID: 19454652 DOI: 10.1189/jlb.1008662] [Citation(s) in RCA: 143] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Signals from stressed cells and the enteric microbiota activate macrophages and dendritic cells and mediate intestinal inflammation. HMGB1 serves as an immunogenic stimuli causing release of inflammatory cytokines by myeloid cells. Ethyl pyruvate inhibits secretion of HMGB1 and improves survival in models of endotoxemia and hemorrhagic shock. We reasoned that ethyl pyruvate may be protective in colitis, which involves similar inflammatory pathways. In IL-10(-/-) mice with established chronic colitis, ethyl pyruvate administration ameliorated colitis and reduced intestinal cytokine production. IL-10(-/-) mice demonstrated increased intestinal HMGB1 expression and decreased expression of RAGE compared with wild-type mice. Fecal HMGB1 levels were decreased in ethyl pyruvate-treated mice. Furthermore, ethyl pyruvate induced HO-1 expression in intestinal tissue. In TNBS-induced colitis, intrarectal administration of ethyl pyruvate resulted in amelioration of colitis and reduced intestinal cytokine production. In LPS-activated murine macrophages, ethyl pyruvate decreased expression of IL-12 p40 and NO production but did not affect IL-10 levels. Ethyl pyruvate did not inhibit nuclear translocation of NF-kappaB family members but attenuated NF-kappaB DNA binding. Additionally, ethyl pyruvate induced HO-1 mRNA and protein expression and HO-1 promoter activation. Moreover, ethyl pyruvate prevented nuclear-to-cytoplasmic translocation of HMGB1. In conclusion, the HMGB1/RAGE pathway has pathophysiologic and diagnostic significance in experimental colitis. Ethyl pyruvate and other strategies to inhibit HMGB1 release and function represent promising interventions in chronic inflammatory diseases.
Collapse
Affiliation(s)
- Shaival H Davé
- Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | | | | | | | | | | | | | | | | | | |
Collapse
|
11
|
Flavouring Group Evaluation 64 (FGE.64): Consideration of aliphatic acyclic diols, triols, and related substances evaluated by JECFA (57th meeting) structurally related to aliphatic primary and secondary saturated and unsaturated alcohols, aldehydes, acet. EFSA J 2009. [DOI: 10.2903/j.efsa.2009.975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
|
12
|
Flavouring Group Evaluation 10, Revision 1 (FGE10 Rev1) - Aliphatic primary and secondary saturated and unsaturated alcohols, aldehydes, acetals, carboxylic acids and esters containing an additional oxygenated functional group and lactones from chemical g. EFSA J 2009. [DOI: 10.2903/j.efsa.2009.934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
|
13
|
Opinion of the Scientific Panel on Food Additives, Flavourings, Processing Aids and Materials in contact with Food (AFC) on a request from the Commission related to - Flavouring Group Evaluation 10: Aliphatic primary and secondary saturated and unsaturate. EFSA J 2005. [DOI: 10.2903/j.efsa.2005.246] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
|