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Nagaoka M, Sakai Y, Nakajima M, Fukami T. Role of carboxylesterase and arylacetamide deacetylase in drug metabolism, physiology, and pathology. Biochem Pharmacol 2024; 223:116128. [PMID: 38492781 DOI: 10.1016/j.bcp.2024.116128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 01/20/2024] [Accepted: 03/12/2024] [Indexed: 03/18/2024]
Abstract
Carboxylesterases (CES1 and CES2) and arylacetamide deacetylase (AADAC), which are expressed primarily in the liver and/or gastrointestinal tract, hydrolyze drugs containing ester and amide bonds in their chemical structure. These enzymes often catalyze the conversion of prodrugs, including the COVID-19 drugs remdesivir and molnupiravir, to their pharmacologically active forms. Information on the substrate specificity and inhibitory properties of these enzymes, which would be useful for drug development and toxicity avoidance, has accumulated. Recently,in vitroandin vivostudies have shown that these enzymes are involved not only in drug hydrolysis but also in lipid metabolism. CES1 and CES2 are capable of hydrolyzing triacylglycerol, and the deletion of their orthologous genes in mice has been associated with impaired lipid metabolism and hepatic steatosis. Adeno-associated virus-mediated human CES overexpression decreases hepatic triacylglycerol levels and increases fatty acid oxidation in mice. It has also been shown that overexpression of CES enzymes or AADAC in cultured cells suppresses the intracellular accumulation of triacylglycerol. Recent reports indicate that AADAC can be up- or downregulated in tumors of various organs, and its varied expression is associated with poor prognosis in patients with cancer. Thus, CES and AADAC not only determine drug efficacy and toxicity but are also involved in pathophysiology. This review summarizes recent findings on the roles of CES and AADAC in drug metabolism, physiology, and pathology.
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Affiliation(s)
- Mai Nagaoka
- Drug Metabolism and Toxicology, Faculty of Pharmaceutical Sciences, Kanazawa University, Kanazawa, Japan
| | - Yoshiyuki Sakai
- Drug Metabolism and Toxicology, Faculty of Pharmaceutical Sciences, Kanazawa University, Kanazawa, Japan
| | - Miki Nakajima
- Drug Metabolism and Toxicology, Faculty of Pharmaceutical Sciences, Kanazawa University, Kanazawa, Japan; WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kanazawa, Japan
| | - Tatsuki Fukami
- Drug Metabolism and Toxicology, Faculty of Pharmaceutical Sciences, Kanazawa University, Kanazawa, Japan; WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kanazawa, Japan.
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Cybulski M, Zaremba-Czogalla M, Trzaskowski B, Kubiszewski M, Tobiasz J, Jaromin A, Krzeczyński P, Gubernator J, Michalak O. The conjugates of 5'-deoxy-5-fluorocytidine and hydroxycinnamic acids - synthesis, anti-pancreatic cancer activity and molecular docking studies. RSC Adv 2024; 14:13129-13141. [PMID: 38655481 PMCID: PMC11036175 DOI: 10.1039/d4ra01683a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Accepted: 04/15/2024] [Indexed: 04/26/2024] Open
Abstract
New amide conjugates 1-6 of hydroxycinnamic acids (HCA) and 5'-deoxy-5-fluorocytidine (5-dFCR), the prodrug of 5-fluorouracil (5-FU), were synthesized and tested in vitro against pancreatic cancer lines (PDAC). The compounds showed slightly higher efficacy against primary BxPC-3 cells (IC50 values of 14-45 μM) than against metastatic AsPC-1 (IC50 values of 37-133 μM), and similar to that of 5-FU for both PDAC lines. Compound 1, which has a para-(acetyloxy)coumaroyl substituent, was found to be the most potent (IC50 = 14 μM) with a selectivity index of approximately 7 to normal dermal fibroblasts (IC50 = 96 μM). The potential pharmacological profiles were discussed on the basis of the ADME data. Docking to the carboxylesterase CES2 showed that the synthesized compounds have the ability to bind via hydrogen bonding between a specific acetate group of the sugar moiety and Ser228, which belongs to the catalytic triad that causes hydrolysis. Docking to albumin, a major transport protein in the circulatory system, revealed a strong interaction of the conjugates at the binding site which is native to warfarin and responsible for its transport in the body.
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Affiliation(s)
- Marcin Cybulski
- Pharmacy, Cosmetic Chemistry and Biotechnology Research Group, Łukasiewicz Research Network-Industrial Chemistry Institute Rydygiera 8 01-793 Warsaw Poland +48 453 056 175 +48 453 056 177
| | - Magdalena Zaremba-Czogalla
- Department of Lipids and Liposomes, Faculty of Biotechnology, University of Wroclaw Fryderyka Joliot-Curie 14a 50-383 Wroclaw Poland
| | - Bartosz Trzaskowski
- Chemical and Biological Systems Simulation Laboratory, Center of New Technologies, University of Warsaw Banacha 2c 02-097 Warsaw Poland
| | - Marek Kubiszewski
- Pharmaceutical Analysis Laboratory, Łukasiewicz Research Network-Industrial Chemistry Institute Rydygiera 8 01-793 Warsaw Poland
| | - Joanna Tobiasz
- Pharmacy, Cosmetic Chemistry and Biotechnology Research Group, Łukasiewicz Research Network-Industrial Chemistry Institute Rydygiera 8 01-793 Warsaw Poland +48 453 056 175 +48 453 056 177
| | - Anna Jaromin
- Department of Lipids and Liposomes, Faculty of Biotechnology, University of Wroclaw Fryderyka Joliot-Curie 14a 50-383 Wroclaw Poland
| | - Piotr Krzeczyński
- Pharmacy, Cosmetic Chemistry and Biotechnology Research Group, Łukasiewicz Research Network-Industrial Chemistry Institute Rydygiera 8 01-793 Warsaw Poland +48 453 056 175 +48 453 056 177
| | - Jerzy Gubernator
- Department of Lipids and Liposomes, Faculty of Biotechnology, University of Wroclaw Fryderyka Joliot-Curie 14a 50-383 Wroclaw Poland
| | - Olga Michalak
- Pharmacy, Cosmetic Chemistry and Biotechnology Research Group, Łukasiewicz Research Network-Industrial Chemistry Institute Rydygiera 8 01-793 Warsaw Poland +48 453 056 175 +48 453 056 177
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Kelly AG, Wang W, Rothenberger E, Yang J, Gilligan MM, Kipper FC, Attaya A, Gartung A, Hwang SH, Gillespie MJ, Bayer RL, Quinlivan KM, Torres KL, Huang S, Mitsiades N, Yang H, Hammock BD, Panigrahy D. Enhancing cancer immunotherapy via inhibition of soluble epoxide hydrolase. Proc Natl Acad Sci U S A 2024; 121:e2314085121. [PMID: 38330013 PMCID: PMC10873624 DOI: 10.1073/pnas.2314085121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 12/22/2023] [Indexed: 02/10/2024] Open
Abstract
Cancer therapy, including immunotherapy, is inherently limited by chronic inflammation-induced tumorigenesis and toxicity within the tumor microenvironment. Thus, stimulating the resolution of inflammation may enhance immunotherapy and improve the toxicity of immune checkpoint inhibition (ICI). As epoxy-fatty acids (EpFAs) are degraded by the enzyme soluble epoxide hydrolase (sEH), the inhibition of sEH increases endogenous EpFA levels to promote the resolution of cancer-associated inflammation. Here, we demonstrate that systemic treatment with ICI induces sEH expression in multiple murine cancer models. Dietary omega-3 polyunsaturated fatty acid supplementation and pharmacologic sEH inhibition, both alone and in combination, significantly enhance anti-tumor activity of ICI in these models. Notably, pharmacological abrogation of the sEH pathway alone or in combination with ICI counter-regulates an ICI-induced pro-inflammatory and pro-tumorigenic cytokine storm. Thus, modulating endogenous EpFA levels through dietary supplementation or sEH inhibition may represent a unique strategy to enhance the anti-tumor activity of paradigm cancer therapies.
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Affiliation(s)
- Abigail G. Kelly
- Center for Vascular Biology Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
- Cancer Center, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
| | - Weicang Wang
- Department of Entomology and Nematology, University of California, Davis,CA95616
- University of California Davis Comprehensive Cancer Center, Sacramento, CA95817
- Department of Food Science, Purdue University, West Lafayette, IN47907
| | - Eva Rothenberger
- Center for Vascular Biology Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
- Cancer Center, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
| | - Jun Yang
- Department of Entomology and Nematology, University of California, Davis,CA95616
- University of California Davis Comprehensive Cancer Center, Sacramento, CA95817
| | - Molly M. Gilligan
- Center for Vascular Biology Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
- Cancer Center, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
| | - Franciele C. Kipper
- Center for Vascular Biology Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
- Cancer Center, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
| | - Ahmed Attaya
- Center for Vascular Biology Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
- Cancer Center, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
| | - Allison Gartung
- Center for Vascular Biology Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
- Cancer Center, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
| | - Sung Hee Hwang
- Department of Entomology and Nematology, University of California, Davis,CA95616
- University of California Davis Comprehensive Cancer Center, Sacramento, CA95817
| | - Michael J. Gillespie
- Center for Vascular Biology Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
- Cancer Center, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
| | - Rachel L. Bayer
- Center for Vascular Biology Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
- Cancer Center, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
| | - Katherine M. Quinlivan
- Center for Vascular Biology Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
- Cancer Center, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
| | - Kimberly L. Torres
- Center for Vascular Biology Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
- Cancer Center, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
| | - Sui Huang
- Institute of Systems Biology, Seattle, WA98109
| | - Nicholas Mitsiades
- University of California Davis Comprehensive Cancer Center, Sacramento, CA95817
- Department of Internal Medicine, University of CaliforniaDavis,CA95817
| | - Haixia Yang
- Center for Vascular Biology Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
- Cancer Center, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
- Department of Food Nutrition and Safety, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing100083, China
| | - Bruce D. Hammock
- Department of Entomology and Nematology, University of California, Davis,CA95616
- University of California Davis Comprehensive Cancer Center, Sacramento, CA95817
| | - Dipak Panigrahy
- Center for Vascular Biology Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
- Cancer Center, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
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Kailass K, Casalena D, Jenane L, McEdwards G, Auld DS, Sadovski O, Kaye EG, Hudson E, Nettleton D, Currie MA, Beharry AA. Tight-Binding Small-Molecule Carboxylesterase 2 Inhibitors Reduce Intracellular Irinotecan Activation. J Med Chem 2024; 67:2019-2030. [PMID: 38265364 DOI: 10.1021/acs.jmedchem.3c01850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2024]
Abstract
As the primary enzyme responsible for the activatable conversion of Irinotecan (CPT-11) to SN-38, carboxylesterase 2 (CES2) is a significant predictive biomarker toward CPT-11-based treatments for pancreatic ductal adenocarcinoma (PDAC). High SN-38 levels from high CES2 activity lead to harmful effects, including life-threatening diarrhea. While alternate strategies have been explored, CES2 inhibition presents an effective strategy to directly alter the pharmacokinetics of CPT-11 conversion, ultimately controlling the amount of SN-38 produced. To address this, we conducted a high-throughput screening to discover 18 small-molecule CES2 inhibitors. The inhibitors are validated by dose-response and counter-screening and 16 of these inhibitors demonstrate selectivity for CES2. These 16 inhibitors inhibit CES2 in cells, indicating cell permeability, and they show inhibition of CPT-11 conversion with the purified enzyme. The top five inhibitors prohibited cell death mediated by CPT-11 when preincubated in PDAC cells. Three of these inhibitors displayed a tight-binding mechanism of action with a strong binding affinity.
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Affiliation(s)
- Karishma Kailass
- Department of Chemical and Physical Sciences, University of Toronto Mississauga, Mississauga, Ontario, Canada L5L 1C6
| | - Dominick Casalena
- Novartis Institutes for Biomedical Research, Cambridge, Massachusetts 02139, United States
| | - Lina Jenane
- Department of Chemical and Physical Sciences, University of Toronto Mississauga, Mississauga, Ontario, Canada L5L 1C6
| | - Gregor McEdwards
- Department of Biology, University of Toronto Mississauga, Mississauga, Ontario, Canada, L5L 1C6
| | - Douglas S Auld
- Novartis Institutes for Biomedical Research, Cambridge, Massachusetts 02139, United States
| | - Oleg Sadovski
- Department of Chemical and Physical Sciences, University of Toronto Mississauga, Mississauga, Ontario, Canada L5L 1C6
| | - Esther G Kaye
- Department of Chemical and Physical Sciences, University of Toronto Mississauga, Mississauga, Ontario, Canada L5L 1C6
| | - Elyse Hudson
- Department of Chemical and Physical Sciences, University of Toronto Mississauga, Mississauga, Ontario, Canada L5L 1C6
| | - David Nettleton
- Novartis Institutes for Biomedical Research, Cambridge, Massachusetts 02139, United States
| | - Mark A Currie
- Department of Biology, University of Toronto Mississauga, Mississauga, Ontario, Canada, L5L 1C6
| | - Andrew A Beharry
- Department of Chemical and Physical Sciences, University of Toronto Mississauga, Mississauga, Ontario, Canada L5L 1C6
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Guo Y, Zhao T, Chu X, Cheng Z. Development of a diagnostic and risk prediction model for Alzheimer's disease through integration of single-cell and bulk transcriptomic analysis of glutamine metabolism. Front Aging Neurosci 2023; 15:1275793. [PMID: 38020758 PMCID: PMC10667556 DOI: 10.3389/fnagi.2023.1275793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 10/27/2023] [Indexed: 12/01/2023] Open
Abstract
Background In this study, we present a novel system for quantifying glutamine metabolism (GM) to enhance the effectiveness of Alzheimer's disease (AD) diagnosis and risk prediction. Methods Single-cell RNA sequencing (scRNA-seq) analysis was utilized to comprehensively assess the expression patterns of GM. The WGCNA algorithm was applied to investigate the most significant genes related to GM. Subsequently, three machine learning algorithms (Boruta, LASSO, and SVM-RFE) were employed to identify GM-associated characteristic genes and develop a risk model. Patients were divided into high- and low-risk groups based on this model. Moreover, we explored biological properties, distinct signaling pathways, and immunological characteristics of AD patients at different risk levels. Finally, in vitro and in vivo models of AD were constructed to validate the characteristics of the feature genes. Results Both scRNA-seq and bulk transcriptomic analyses revealed increased GM activity in AD patients, specifically in certain cell subsets (pDC, Tem/Effector helper T cells (LTB), and plasma cells). Cells with higher GM scores demonstrated more significant numbers and strengths of interactions with other cell types. The WGCNA algorithm identified 360 genes related to GM, and a risk score was constructed based on nine characteristic genes (ATP13A4, PIK3C2A, CD164, PHF1, CES2, PDGFB, LCOR, TMEM30A, and PLXNA1) identified through multiple machine learning algorithms displayed reliable diagnostic efficacy for AD onset. Nomograms, calibration curves, and decision curve analysis (DCA) based on these characteristic genes provided significant clinical benefits for AD patients. High-risk AD patients exhibited higher levels of immune-related functions and pathways, increased immune cell infiltration, and elevated expressions of immune modulators. RT-qPCR analysis revealed that the majority of the nine characteristic genes were differentially expressed in AD-induced rat neurons. Knocking down PHF1 could protect against neurite loss and alleviate cell injury in AD neurons. In vivo, down-regulation of PHF1 in AD models decreases GM metabolism levels and modulates the immunoinflammatory response in the brain. Conclusion This comprehensive identification of gene expression patterns contributes to a deeper understanding of the underlying pathological mechanisms driving AD pathogenesis. Furthermore, the risk model based on the nine-gene signature offers a promising theoretical foundation for developing individualized treatments for AD patients.
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Affiliation(s)
- Yan Guo
- Department of Clinical Laboratory, Key Clinical Laboratory of Henan Province, Zhengzhou, Henan, China
- The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Tingru Zhao
- Department of Clinical Laboratory, Key Clinical Laboratory of Henan Province, Zhengzhou, Henan, China
- The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Xi Chu
- Department of Clinical Laboratory, Key Clinical Laboratory of Henan Province, Zhengzhou, Henan, China
- The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Zhenyun Cheng
- Department of Clinical Laboratory, Key Clinical Laboratory of Henan Province, Zhengzhou, Henan, China
- The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
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Li HX, Sun MR, Zhang Y, Song LL, Zhang F, Song YQ, Hou XD, Ge GB. Human Carboxylesterase 1A Plays a Predominant Role in Hydrolysis of the Anti-Dyslipidemia Agent Fenofibrate in Humans. Drug Metab Dispos 2023; 51:1490-1498. [PMID: 37550069 DOI: 10.1124/dmd.123.001365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 07/27/2023] [Accepted: 07/28/2023] [Indexed: 08/09/2023] Open
Abstract
Fenofibrate, a marketed peroxisome proliferator-activated receptor-α (PPARα) agonist, has been widely used for treating severe hypertriglyceridemia and mixed dyslipidemia. As a canonical prodrug, fenofibrate can be rapidly hydrolyzed to release the active metabolite (fenofibric acid) in vivo, but the crucial enzyme(s) responsible for fenofibrate hydrolysis and the related hydrolytic kinetics have not been well-investigated. This study aimed to assign the key organs and crucial enzymes involved in fenofibrate hydrolysis in humans, as well as reveal the impact of fenofibrate hydrolysis on its non-PPAR-mediated biologic activities. Our results demonstrated that fenofibrate could be rapidly hydrolyzed in the preparations from both human liver and lung to release fenofibric acid. Reaction phenotyping assays coupling with chemical inhibition assays showed that human carboxylesterase 1A (hCES1A) played a predominant role in fenofibrate hydrolysis in human liver and lung, while human carboxylesterase 2A (hCES2A) and human monoacylglycerol esterase (hMAGL) contributed to a very lesser extent. Kinetic analyses showed that fenofibrate could be rapidly hydrolyzed by hCES1A in human liver preparations, while the inherent clearance of hCES1A-catalyzed fenofibrate hydrolysis is much higher (>200-fold) than than that of hCES2A or hMAGL. Biologic assays demonstrated that both fenofibrate and fenofibric acid showed very closed Nrf2 agonist effects, but fenofibrate hydrolysis strongly weakens its inhibitory effects against both hCES2A and hNtoum. Collectively, our findings reveal that the liver is the major organ and hCES1A is the predominant enzyme-catalyzing fenofibrate hydrolysis in humans, while fenofibrate hydrolysis significantly reduces inhibitory effects of fenofibrate against serine hydrolases. SIGNIFICANCE STATEMENT: Fenofibrate can be completely converted to fenofibric acid in humans and subsequently exert its pharmacological effects, but the hydrolytic pathways of fenofibrate in humans have not been well-investigated. This study reported that the liver was the predominant organ and human carboxylesterase 1A was the crucial enzyme involved in fenofibrate hydrolysis in humans.
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Affiliation(s)
- Hong-Xin Li
- Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, China (H.-X.L., M.-R.S., Y.Z., L.-L.S., F.Z., Y.-Q.S., X.-D.H., G.-B.G.) and Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China (L.-L.S.)
| | - Meng-Ru Sun
- Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, China (H.-X.L., M.-R.S., Y.Z., L.-L.S., F.Z., Y.-Q.S., X.-D.H., G.-B.G.) and Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China (L.-L.S.)
| | - Ya Zhang
- Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, China (H.-X.L., M.-R.S., Y.Z., L.-L.S., F.Z., Y.-Q.S., X.-D.H., G.-B.G.) and Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China (L.-L.S.)
| | - Li-Lin Song
- Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, China (H.-X.L., M.-R.S., Y.Z., L.-L.S., F.Z., Y.-Q.S., X.-D.H., G.-B.G.) and Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China (L.-L.S.)
| | - Feng Zhang
- Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, China (H.-X.L., M.-R.S., Y.Z., L.-L.S., F.Z., Y.-Q.S., X.-D.H., G.-B.G.) and Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China (L.-L.S.)
| | - Yun-Qing Song
- Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, China (H.-X.L., M.-R.S., Y.Z., L.-L.S., F.Z., Y.-Q.S., X.-D.H., G.-B.G.) and Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China (L.-L.S.)
| | - Xu-Dong Hou
- Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, China (H.-X.L., M.-R.S., Y.Z., L.-L.S., F.Z., Y.-Q.S., X.-D.H., G.-B.G.) and Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China (L.-L.S.)
| | - Guang-Bo Ge
- Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, China (H.-X.L., M.-R.S., Y.Z., L.-L.S., F.Z., Y.-Q.S., X.-D.H., G.-B.G.) and Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China (L.-L.S.)
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Fan Y, Zhang T, Song Y, Sang Z, Zeng H, Liu P, Wang P, Ge G. Rationally Engineered hCES2A Near-Infrared Fluorogenic Substrate for Functional Imaging and High-Throughput Inhibitor Screening. Anal Chem 2023; 95:15665-15672. [PMID: 37782032 DOI: 10.1021/acs.analchem.3c02873] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/03/2023]
Abstract
Human carboxylesterase 2A (hCES2A) is an important endoplasmic reticulum (ER)-resident enzyme that is responsible for the hydrolytic metabolism or activation of numerous ester-bearing drugs and environmental toxins. The previously reported hCES2A fluorogenic substrates suffer from limited emission wavelength, low specificity, and poor localization accuracy, thereby greatly limiting the in situ functional imaging of hCES2A and drug discovery. Herein, a rational ligand design strategy was adopted to construct a highly specific near-infrared (NIR) substrate for hCES2A. Following scaffold screening and recognition group optimization, HTCF was identified as a desirable NIR fluorophore with excellent photophysical properties and high ER accumulation ability, while several HTCF esters held a high potential to be good hCES2A substrates. Further investigations revealed that TP-HTCF (the tert-pentyl ester of HTCF) was an ideal substrate with ultrahigh sensitivity, excellent specificity, and a substantial signal-to-noise ratio. Upon the addition of hCES2A, TP-HTCF could be rapidly hydrolyzed to release HTCF, a chemically stable product that emitted bright fluorescent signals at around 670 nm. A TP-HTCF-based biochemical assay was then established for the high-throughput screening of potent and cell-active hCES2A inhibitors from an in-house compound library. Furthermore, TP-HTCF displayed high imaging resolution for imaging hCES2A in living cells as well as mouse liver slices and tumor-xenograft mice. Collectively, this study demonstrates a rational strategy for developing highly specific fluorogenic substrates for an ER-resident target enzyme, while TP-HTCF can act as a practical tool for sensing hCES2A in living systems.
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Affiliation(s)
- Yufan Fan
- Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Tiantian Zhang
- Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Yunqing Song
- Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Zhipei Sang
- School of Pharmaceutical Sciences, Hainan University, Haikou, Hainan 570228, China
| | - Hairong Zeng
- Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Peiqi Liu
- Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Ping Wang
- Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Guangbo Ge
- Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
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Zhan H, Zhang Q, Zhang C, Cheng J, Yang Y, Liu C, Li S, Wang C, Yang J, Ge H, Zhou D, Li B, Wei H, Hu C. Targeted Activation of HNF4α by AMPK Inhibits Apoptosis and Ameliorates Neurological Injury Caused by Cardiac Arrest in Rats. Neurochem Res 2023; 48:3129-3145. [PMID: 37338793 PMCID: PMC10471732 DOI: 10.1007/s11064-023-03957-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 05/18/2023] [Accepted: 05/21/2023] [Indexed: 06/21/2023]
Abstract
Previous studies have shown that AMPK plays an important role in cerebral ischemia-reperfusion injury by participating in apoptosis, but the exact mechanism and target of action remains unclear. This study aimed to investigate the protective mechanism of AMPK activation on brain injury secondary to cardiac arrest. HE, Nills and TUNEL assays were used to evaluate neuronal damage and apoptosis. The relationships between AMPK, HNF4α and apoptotic genes were verified by ChIP-seq, dual-luciferase and WB assays. The results showed that AMPK improved the 7-day memory function of rats, and reduced neuronal cell injury and apoptosis in the hippocampal CA1 region after ROSC, while the use of HNF4α inhibitor weakened the protective effect of AMPK. Further research found that AMPK positively regulated the expression of HNF4α, and AMPK could promote the expression of Bcl-2 and inhibit the expression of Bax and Cleaved-Caspase 3. In vitro experiments showed that AMPK ameliorated neuronal injury by inhibiting apoptosis through the activation of HNF4α. Combined with ChIP-seq, JASPAR analysis and Dual-luciferase assay, the binding site of HNF4α to the upstream promoter of Bcl-2 was found. Taken together, AMPK attenuates brain injury after CA by activating HNF4α to target Bcl-2 to inhibit apoptosis.
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Affiliation(s)
- Haohong Zhan
- Department of Emergency Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China
- National Health Council (NHC) Key Laboratory of Assisted Circulation, Guangzhou, 510080, China
| | - Qiang Zhang
- Department of Emergency Medicine, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518107, China
- National Health Council (NHC) Key Laboratory of Assisted Circulation, Guangzhou, 510080, China
| | - Chenyu Zhang
- Department of Emergency Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China
- Department of Critical Care Medicine, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China
- National Health Council (NHC) Key Laboratory of Assisted Circulation, Guangzhou, 510080, China
| | - Jingge Cheng
- Department of Emergency Medicine, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518107, China
| | - Yilin Yang
- Department of Emergency Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China
| | - Cong Liu
- Department of Emergency Medicine, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518107, China
- Department of Critical Care Medicine, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China
| | - Shuhao Li
- Department of Emergency Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China
| | - Chuyue Wang
- Department of Emergency Medicine, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518107, China
| | - Junqin Yang
- Department of Emergency Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China
| | - Hanmei Ge
- Department of Emergency Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China
| | - Dawang Zhou
- Department of Emergency Medicine, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518107, China
| | - Bo Li
- Department of Emergency Medicine, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518107, China
| | - Hongyan Wei
- Department of Emergency Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China.
| | - Chunlin Hu
- Department of Emergency Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China.
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9
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Chen H, Li K, Yuan L, Zhang XB. Design of a near-infrared fluoro-photoacoustic probe for rapid imaging of carboxylesterase in liver injury. Chem Commun (Camb) 2023; 59:10520-10523. [PMID: 37644758 DOI: 10.1039/d3cc03170e] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
Carboxylesterase (CE) is crucial in metabolizing ester-containing biomolecules and is particularly significant in liver metabolic diseases. Herein, we present the first activatable NIRF/PA dual-mode imaging probe QHD-CE for detection of CE in vitro and in vivo. QHD-CE displays excellent sensitivity and selectivity for CE with a high reaction efficiency (∼90 min). By utilizing QHD-CE, the dynamic changes of CE in drug-induced liver injury and diabetic mice models were monitored.
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Affiliation(s)
- Haoming Chen
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, China.
| | - Ke Li
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, China.
- College of Chemistry & Chemical Engineering, Central South University, Changsha 410083, Hunan Province, China
| | - Lin Yuan
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, China.
| | - Xiao-Bing Zhang
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, China.
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10
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Chalhoub G, Jamnik A, Pajed L, Kolleritsch S, Hois V, Bagaric A, Prem D, Tilp A, Kolb D, Wolinski H, Taschler U, Züllig T, Rechberger GN, Fuchs C, Trauner M, Schoiswohl G, Haemmerle G. Carboxylesterase 2a deletion provokes hepatic steatosis and insulin resistance in mice involving impaired diacylglycerol and lysophosphatidylcholine catabolism. Mol Metab 2023; 72:101725. [PMID: 37059417 PMCID: PMC10148186 DOI: 10.1016/j.molmet.2023.101725] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 04/04/2023] [Accepted: 04/08/2023] [Indexed: 04/16/2023] Open
Abstract
OBJECTIVE Hepatic triacylglycerol accumulation and insulin resistance are key features of NAFLD. However, NAFLD development and progression are rather triggered by the aberrant generation of lipid metabolites and signaling molecules including diacylglycerol (DAG) and lysophosphatidylcholine (lysoPC). Recent studies showed decreased expression of carboxylesterase 2 (CES2) in the liver of NASH patients and hepatic DAG accumulation was linked to low CES2 activity in obese individuals. The mouse genome encodes several Ces2 genes with Ces2a showing highest expression in the liver. Herein we investigated the role of mouse Ces2a and human CES2 in lipid metabolism in vivo and in vitro. METHODS Lipid metabolism and insulin signaling were investigated in mice lacking Ces2a and in a human liver cell line upon pharmacological CES2 inhibition. Lipid hydrolytic activities were determined in vivo and from recombinant proteins. RESULTS Ces2a deficient mice (Ces2a-ko) are obese and feeding a high-fat diet (HFD) provokes severe hepatic steatosis and insulin resistance together with elevated inflammatory and fibrotic gene expression. Lipidomic analysis revealed a marked rise in DAG and lysoPC levels in the liver of Ces2a-ko mice fed HFD. Hepatic lipid accumulation in Ces2a deficiency is linked to lower DAG and lysoPC hydrolytic activities in liver microsomal preparations. Moreover, Ces2a deficiency significantly increases hepatic expression and activity of MGAT1, a PPAR gamma target gene, suggesting aberrant lipid signaling upon Ces2a deficiency. Mechanistically, we found that recombinant Ces2a and CES2 show significant hydrolytic activity towards lysoPC (and DAG) and pharmacological inhibition of CES2 in human HepG2 cells largely phenocopies the lipid metabolic changes present in Ces2a-ko mice including reduced lysoPC and DAG hydrolysis, DAG accumulation and impaired insulin signaling. CONCLUSIONS Ces2a and CES2 are critical players in hepatic lipid signaling likely via the hydrolysis of DAG and lysoPC at the ER.
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Affiliation(s)
- Gabriel Chalhoub
- Institute of Molecular Biosciences, University of Graz, Graz, Austria
| | - Alina Jamnik
- Institute of Molecular Biosciences, University of Graz, Graz, Austria
| | - Laura Pajed
- Institute of Molecular Biosciences, University of Graz, Graz, Austria
| | | | - Victoria Hois
- Division of Endocrinology and Diabetology, Medical University of Graz, Austria
| | - Antonia Bagaric
- Department of Pharmacology and Toxicology, University of Graz, Graz, Austria
| | - Dominik Prem
- Institute of Molecular Biosciences, University of Graz, Graz, Austria
| | - Anna Tilp
- Institute of Molecular Biosciences, University of Graz, Graz, Austria
| | - Dagmar Kolb
- Core Facility Ultrastructure Analysis, Medical University of Graz, Graz, Austria
| | - Heimo Wolinski
- Institute of Molecular Biosciences, University of Graz, Graz, Austria
| | - Ulrike Taschler
- Institute of Molecular Biosciences, University of Graz, Graz, Austria
| | - Thomas Züllig
- Institute of Molecular Biosciences, University of Graz, Graz, Austria
| | | | - Claudia Fuchs
- Hans Popper Laboratory of Molecular Hepatology, Division of Gastroenterology and Hepatology, Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria
| | - Michael Trauner
- Hans Popper Laboratory of Molecular Hepatology, Division of Gastroenterology and Hepatology, Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria
| | - Gabriele Schoiswohl
- Department of Pharmacology and Toxicology, University of Graz, Graz, Austria.
| | - Guenter Haemmerle
- Institute of Molecular Biosciences, University of Graz, Graz, Austria.
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11
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Qu W, Yao Y, Liu Y, Jo H, Zhang Q, Zhao H. Prognostic and Immunological Roles of CES2 in Breast Cancer and Potential Application of CES2-Targeted Fluorescent Probe DDAB in Breast Surgery. Int J Gen Med 2023; 16:1567-1580. [PMID: 37139258 PMCID: PMC10150794 DOI: 10.2147/ijgm.s406835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 04/17/2023] [Indexed: 05/05/2023] Open
Abstract
Purpose The expression and function of CES2 in breast cancer (BRCA) has not been fully elucidated. The purpose of this study was to investigate its clinical significance in BRCA. Patients and Methods Bioinformatics analysis tools and databases, including The Cancer Genome Atlas (TCGA), Gene Expression Omnibus (GEO) databases, SURVIVAL packages, STRING database, Gene Ontology (GO) enrichment, Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis, Gene set variation analysis (GSVA), and Tumor Immunity Estimation Resource (TIMER), were utilized to measure the expression level and clarify the clinical significance of CES2 in BRCA. In addition, we verified the expression level of CES2 in BRCA at the cellular and tissue levels by Western blot, immunohistochemistry (IHC) and real-time fluorescence quantitative PCR assays. Furthermore, DDAB is the first reported near-infrared fluorescent probe that can be used to monitor CES2 in vivo. We applied the CES2-targeted fluorescent probe DDAB in BRCA for the first time and verified its physicochemical properties and labeling sorting ability by CCK-8, cytofluorimetric imaging, flow cytometry fluorescence detection, and isolated human tumor tissue imaging assays. Results The expression of CES2 was higher in normal tissues than that in BRCA tissues. Patients with lower CES2 expression in the BRCA T4 stage had a poorer prognosis. Finally, we applied the CES2-targeted fluorescent probe DDAB in BRCA for the first time, which was demonstrated to have good cellular imaging performance with low biological toxicity in BRCA cells and ex vivo human breast tumor tissue models. Conclusion CES2 can be considered a potential biomarker to predict the prognosis of breast cancer at stage T4 and might contribute to the development of immunological treatment strategies. Meanwhile, CES2 is able to distinguish between breast normal and tumor tissues, the CES2-targeting NIR fluorescent probe DDAB may have potential for surgical applications in BRCA.
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Affiliation(s)
- Weikun Qu
- Department of Oncology & Department of Breast Surgery, The Second Hospital of Dalian Medical University, Dalian, 116023, People’s Republic of China
- OPO Office, The Second Hospital of Dalian Medical University, Dalian, 116023, People’s Republic of China
| | - Yalu Yao
- Department of Oncology & Department of Breast Surgery, The Second Hospital of Dalian Medical University, Dalian, 116023, People’s Republic of China
| | - Yaqian Liu
- Department of Oncology & Department of Breast Surgery, The Second Hospital of Dalian Medical University, Dalian, 116023, People’s Republic of China
| | - HyonSu Jo
- Department of Oncology & Department of Breast Surgery, The Second Hospital of Dalian Medical University, Dalian, 116023, People’s Republic of China
- Department of General Surgery, the Hospital of Pyongyang Medical University, Pyongyang, 999093, Democratic People’s Republic of Korea
| | - Qianran Zhang
- Department of Oncology & Department of Breast Surgery, The Second Hospital of Dalian Medical University, Dalian, 116023, People’s Republic of China
| | - Haidong Zhao
- Department of Oncology & Department of Breast Surgery, The Second Hospital of Dalian Medical University, Dalian, 116023, People’s Republic of China
- Correspondence: Haidong Zhao; Qianran Zhang, Department of Breast Surgery, Second Affiliated Hospital of Dalian Medical University, 467, Zhongshan Road, Shahekou District, Dalian, Liaoning, 116023, People’s Republic of China, Tel +86 13354288881; +86 13278089966, Email ;
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12
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Carboxylesterase 2 induces mitochondrial dysfunction via disrupting lipid homeostasis in oral squamous cell carcinoma. Mol Metab 2022; 65:101600. [PMID: 36113774 PMCID: PMC9508558 DOI: 10.1016/j.molmet.2022.101600] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 08/31/2022] [Accepted: 09/09/2022] [Indexed: 11/21/2022] Open
Abstract
OBJECTIVE Oral squamous cell carcinoma (OSCC) is characterized by high recurrence and metastasis and places a heavy burden on societies worldwide. Cancer cells thrive in a changing microenvironment by reprogramming lipidomic metabolic processes to provide nutrients and energy, activate oncogenic signaling pathways, and manage redox homeostasis to avoid lipotoxicity. The mechanism by which OSCC cells maintain lipid homeostasis during malignant progression is unclear. METHODS The altered expression of fatty acid (FA) metabolism genes in OSCC, compared with that in normal tissues, and in OSCC patients with or without recurrence or metastasis were determined using public data from the TCGA and GEO databases. Immunohistochemistry was performed to examine the carboxylesterase 2 (CES2) protein level in our own cohort. CCK-8 and Transwell assays and an in vivo xenograft model were used to evaluate the biological functions of CES2. Mass spectrometry and RNA sequencing were performed to determine the lipidome and transcriptome alterations induced by CES2. Mitochondrial mass, mtDNA content, mitochondrial membrane potential, ROS levels, and oxygen consumption and apoptosis rates were evaluated to determine the effects of CES2 on mitochondrial function in OSCC. RESULTS CES2 was downregulated in OSCC patients, especially those with recurrence or metastasis. CES2high OSCC patients showed better overall survival than CES2low OSCC patients. Restoring CES2 expression reduced OSCC cell viability and suppressed their migration and invasion in vitro, and it inhibited OSCC tumor growth in vivo. CES2 reprogrammed lipid metabolism in OSCC cells by hydrolyzing neutral lipid diacylglycerols (DGs) to release free fatty acids and reduce the membrane structure lipid phospholipids (PLs) synthesis. Free FAs were converted to acyl-carnitines (CARs) and transferred to mitochondria for oxidation, which induced reactive oxygen species (ROS) accumulation, mitochondrial damage, and apoptosis activation. Furthermore, the reduction in signaling lipids, e.g., DGs, PLs and substrates, suppressed PI3K/AKT/MYC signaling pathways. Restoring MYC rescued the diminished cell viability, suppressed migratory and invasive abilities, damaged mitochondria and reduced apoptosis rate induced by CES2. CONCLUSIONS We demonstrated that CES2 downregulation plays an important role in OSCC by maintaining lipid homeostasis and reducing lipotoxicity during tumor progression and may provide a potential therapeutic target for OSCC.
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Ahmed YW, Alemu BA, Bekele SA, Gizaw ST, Zerihun MF, Wabalo EK, Teklemariam MD, Mihrete TK, Hanurry EY, Amogne TG, Gebrehiwot AD, Berga TN, Haile EA, Edo DO, Alemu BD. Epigenetic tumor heterogeneity in the era of single-cell profiling with nanopore sequencing. Clin Epigenetics 2022; 14:107. [PMID: 36030244 PMCID: PMC9419648 DOI: 10.1186/s13148-022-01323-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 08/12/2022] [Indexed: 11/29/2022] Open
Abstract
Nanopore sequencing has brought the technology to the next generation in the science of sequencing. This is achieved through research advancing on: pore efficiency, creating mechanisms to control DNA translocation, enhancing signal-to-noise ratio, and expanding to long-read ranges. Heterogeneity regarding epigenetics would be broad as mutations in the epigenome are sensitive to cause new challenges in cancer research. Epigenetic enzymes which catalyze DNA methylation and histone modification are dysregulated in cancer cells and cause numerous heterogeneous clones to evolve. Detection of this heterogeneity in these clones plays an indispensable role in the treatment of various cancer types. With single-cell profiling, the nanopore sequencing technology could provide a simple sequence at long reads and is expected to be used soon at the bedside or doctor's office. Here, we review the advancements of nanopore sequencing and its use in the detection of epigenetic heterogeneity in cancer.
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Affiliation(s)
- Yohannis Wondwosen Ahmed
- Department of Medical Biochemistry, School of Medicine, College of Health Sciences, Addis Ababa University, P.O. Box: 9086, Addis Ababa, Ethiopia.
| | - Berhan Ababaw Alemu
- Department of Medical Biochemistry, School of Medicine, St. Paul's Hospital, Millennium Medical College, Addis Ababa, Ethiopia
| | - Sisay Addisu Bekele
- Department of Medical Biochemistry, School of Medicine, College of Health Sciences, Addis Ababa University, P.O. Box: 9086, Addis Ababa, Ethiopia
| | - Solomon Tebeje Gizaw
- Department of Medical Biochemistry, School of Medicine, College of Health Sciences, Addis Ababa University, P.O. Box: 9086, Addis Ababa, Ethiopia
| | - Muluken Fekadie Zerihun
- Department of Medical Biochemistry, School of Medicine, College of Health Sciences, Addis Ababa University, P.O. Box: 9086, Addis Ababa, Ethiopia
| | - Endriyas Kelta Wabalo
- Department of Medical Biochemistry, School of Medicine, College of Health Sciences, Addis Ababa University, P.O. Box: 9086, Addis Ababa, Ethiopia
| | - Maria Degef Teklemariam
- Department of Medical Biochemistry, School of Medicine, College of Health Sciences, Addis Ababa University, P.O. Box: 9086, Addis Ababa, Ethiopia
| | - Tsehayneh Kelemu Mihrete
- Department of Medical Biochemistry, School of Medicine, College of Health Sciences, Addis Ababa University, P.O. Box: 9086, Addis Ababa, Ethiopia
| | - Endris Yibru Hanurry
- Department of Medical Biochemistry, School of Medicine, College of Health Sciences, Addis Ababa University, P.O. Box: 9086, Addis Ababa, Ethiopia
| | - Tensae Gebru Amogne
- Department of Medical Biochemistry, School of Medicine, College of Health Sciences, Addis Ababa University, P.O. Box: 9086, Addis Ababa, Ethiopia
| | - Assaye Desalegne Gebrehiwot
- Department of Medical Anatomy, School of Medicine, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia
| | - Tamirat Nida Berga
- Department of Medical Biochemistry, School of Medicine, College of Health Sciences, Addis Ababa University, P.O. Box: 9086, Addis Ababa, Ethiopia
| | - Ebsitu Abate Haile
- Department of Medical Biochemistry, School of Medicine, College of Health Sciences, Addis Ababa University, P.O. Box: 9086, Addis Ababa, Ethiopia
| | - Dessiet Oma Edo
- Department of Medical Biochemistry, School of Medicine, College of Health Sciences, Addis Ababa University, P.O. Box: 9086, Addis Ababa, Ethiopia
| | - Bizuwork Derebew Alemu
- Department of Statistics, College of Natural and Computational Sciences, Mizan Tepi University, Tepi, Ethiopia
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