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Kounatidis D, Tentolouris N, Vallianou NG, Mourouzis I, Karampela I, Stratigou T, Rebelos E, Kouveletsou M, Stamatopoulos V, Tsaroucha E, Dalamaga M. The Pleiotropic Effects of Lipid-Modifying Interventions: Exploring Traditional and Emerging Hypolipidemic Therapies. Metabolites 2024; 14:388. [PMID: 39057711 PMCID: PMC11278853 DOI: 10.3390/metabo14070388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2024] [Revised: 07/14/2024] [Accepted: 07/15/2024] [Indexed: 07/28/2024] Open
Abstract
Atherosclerotic cardiovascular disease poses a significant global health issue, with dyslipidemia standing out as a major risk factor. In recent decades, lipid-lowering therapies have evolved significantly, with statins emerging as the cornerstone treatment. These interventions play a crucial role in both primary and secondary prevention by effectively reducing cardiovascular risk through lipid profile enhancements. Beyond their primary lipid-lowering effects, extensive research indicates that these therapies exhibit pleiotropic actions, offering additional health benefits. These include anti-inflammatory properties, improvements in vascular health and glucose metabolism, and potential implications in cancer management. While statins and ezetimibe have been extensively studied, newer lipid-lowering agents also demonstrate similar pleiotropic effects, even in the absence of direct cardiovascular benefits. This narrative review explores the diverse pleiotropic properties of lipid-modifying therapies, emphasizing their non-lipid effects that contribute to reducing cardiovascular burden and exploring emerging benefits for non-cardiovascular conditions. Mechanistic insights into these actions are discussed alongside their potential therapeutic implications.
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Affiliation(s)
- Dimitris Kounatidis
- Diabetes Center, First Department of Propaedeutic Internal Medicine, Laiko General Hospital, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece; (D.K.); (N.T.); (E.R.); (M.K.)
| | - Nikolaos Tentolouris
- Diabetes Center, First Department of Propaedeutic Internal Medicine, Laiko General Hospital, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece; (D.K.); (N.T.); (E.R.); (M.K.)
| | - Natalia G. Vallianou
- First Department of Internal Medicine, Sismanogleio General Hospital, 15126 Athens, Greece;
| | - Iordanis Mourouzis
- Department of Pharmacology, National and Kapodistrian University of Athens, 11527 Athens, Greece;
| | - Irene Karampela
- Second Department of Critical Care, Attikon General University Hospital, Medical School, National and Kapodistrian University of Athens, 12462 Athens, Greece;
| | - Theodora Stratigou
- Department of Endocrinology and Metabolism, Evangelismos General Hospital, 10676 Athens, Greece;
| | - Eleni Rebelos
- Diabetes Center, First Department of Propaedeutic Internal Medicine, Laiko General Hospital, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece; (D.K.); (N.T.); (E.R.); (M.K.)
| | - Marina Kouveletsou
- Diabetes Center, First Department of Propaedeutic Internal Medicine, Laiko General Hospital, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece; (D.K.); (N.T.); (E.R.); (M.K.)
| | | | - Eleni Tsaroucha
- First Department of Internal Medicine, Sismanogleio General Hospital, 15126 Athens, Greece;
| | - Maria Dalamaga
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece;
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Lima TRR, Kohori NA, de Camargo JLV, da Silva CA, Pereira LC. Diuron and its metabolites induce mitochondrial dysfunction-mediated cytotoxicity in urothelial cells. Toxicol Mech Methods 2024; 34:32-45. [PMID: 37664877 DOI: 10.1080/15376516.2023.2250430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 08/16/2023] [Accepted: 08/16/2023] [Indexed: 09/05/2023]
Abstract
In the environment, or during mammalian metabolism, the diuron herbicide (3-(3,4-dichlorophenyl)-1,1-dimethylurea) is transformed mainly into 3-(3,4-dichlorophenyl)-1-methylurea (DCPMU) and 3,4-dichloroaniline (DCA). Previous research suggests that such substances are toxic to the urothelium of Wistar rats where, under specific exposure conditions, they may induce urothelial cell degeneration, necrosis, hyperplasia, and eventually tumors. However, the intimate mechanisms of action associated with such chemical toxicity are not fully understood. In this context, the purpose of the current in vitro study was to analyze the underlying mechanisms involved in the urothelial toxicity of those chemicals, addressing cell death and the possible role of mitochondrial dysfunction. Thus, human 1T1 urothelial cells were exposed to six different concentrations of diuron, DCA, and DCPMU, ranging from 0.5 to 500 µM. The results showed that tested chemicals induced oxidative stress and mitochondrial damage, cell cycle instability, and cell death, which were more expressive at the higher concentrations of the metabolites. These data corroborate previous studies from this laboratory and, collectively, suggest mitochondrial dysfunction as an initiating event triggering urothelial cell degeneration and death.
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Affiliation(s)
- Thania Rios Rossi Lima
- São Paulo State University (UNESP), Medical School, Botucatu, Brazil
- Center for Evaluation of Environmental Impact on Human Health (TOXICAM), UNESP, Medical School, Botucatu, Brazil
| | - Natalia Akemi Kohori
- São Paulo State University (UNESP), Medical School, Botucatu, Brazil
- Center for Evaluation of Environmental Impact on Human Health (TOXICAM), UNESP, Medical School, Botucatu, Brazil
| | - João Lauro Viana de Camargo
- São Paulo State University (UNESP), Medical School, Botucatu, Brazil
- Center for Evaluation of Environmental Impact on Human Health (TOXICAM), UNESP, Medical School, Botucatu, Brazil
| | - Carla Adriene da Silva
- São Paulo State University (UNESP), Medical School, Botucatu, Brazil
- Center for Evaluation of Environmental Impact on Human Health (TOXICAM), UNESP, Medical School, Botucatu, Brazil
| | - Lilian Cristina Pereira
- São Paulo State University (UNESP), Medical School, Botucatu, Brazil
- Center for Evaluation of Environmental Impact on Human Health (TOXICAM), UNESP, Medical School, Botucatu, Brazil
- São Paulo State University (UNESP), School of Agriculture, Botucatu, Brazil
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3
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Jin J, Liang X, Bi W, Liu R, Zhang S, He Y, Xie Q, Liu S, Xiao JC, Zhang P. Identification of a Difluorinated Alkoxy Sulfonyl Chloride as a Novel Antitumor Agent for Hepatocellular Carcinoma through Activating Fumarate Hydratase Activity. Pharmaceuticals (Basel) 2023; 16:1705. [PMID: 38139831 PMCID: PMC10748328 DOI: 10.3390/ph16121705] [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: 10/31/2023] [Revised: 11/18/2023] [Accepted: 12/05/2023] [Indexed: 12/24/2023] Open
Abstract
Fenofibrate is known as a lipid-lowering drug. Although previous studies have reported that fenofibrate exhibits potential antitumor activities, IC50 values of fenofibrate could be as high as 200 μM. Therefore, we investigated the antitumor activities of six synthesized fenofibrate derivatives. We discovered that one compound, SIOC-XJC-SF02, showed significant antiproliferative activity on human hepatocellular carcinoma (HCC) HCCLM3 cells and HepG2 cells (the IC50 values were 4.011 μM and 10.908 μM, respectively). We also found this compound could inhibit the migration of human HCC cells. Transmission electron microscope and flow cytometry assays demonstrated that this compound could induce apoptosis of human HCC cells. The potential binding sites of this compound acting on human HCC cells were identified by mass spectrometry-cellular thermal shift assay (MS-CETSA). Molecular docking, Western blot, and enzyme activity assay-validated binding sites in human HCC cells. The results showed that fumarate hydratase may be a potential binding site of this compound, exerting antitumor effects. A xenograft model in nude mice demonstrated the anti-liver cancer activity and the mechanism of action of this compound. These findings indicated that the antitumor effect of this compound may act via activating fumarate hydratase, and this compound may be a promising antitumor candidate for further investigation.
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Affiliation(s)
- Jin Jin
- NHC Key Laboratory of Cancer Proteomics, Department of Oncology, Xiangya Hospital, Central South University, Changsha 410008, China; (J.J.); (W.B.); (R.L.); (Q.X.); (S.L.)
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Xujun Liang
- NHC Key Laboratory of Cancer Proteomics, Department of Oncology, Xiangya Hospital, Central South University, Changsha 410008, China; (J.J.); (W.B.); (R.L.); (Q.X.); (S.L.)
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Wu Bi
- NHC Key Laboratory of Cancer Proteomics, Department of Oncology, Xiangya Hospital, Central South University, Changsha 410008, China; (J.J.); (W.B.); (R.L.); (Q.X.); (S.L.)
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Ruijie Liu
- NHC Key Laboratory of Cancer Proteomics, Department of Oncology, Xiangya Hospital, Central South University, Changsha 410008, China; (J.J.); (W.B.); (R.L.); (Q.X.); (S.L.)
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Sai Zhang
- NHC Key Laboratory of Cancer Proteomics, Department of Oncology, Xiangya Hospital, Central South University, Changsha 410008, China; (J.J.); (W.B.); (R.L.); (Q.X.); (S.L.)
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Yi He
- NHC Key Laboratory of Cancer Proteomics, Department of Oncology, Xiangya Hospital, Central South University, Changsha 410008, China; (J.J.); (W.B.); (R.L.); (Q.X.); (S.L.)
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Qingming Xie
- NHC Key Laboratory of Cancer Proteomics, Department of Oncology, Xiangya Hospital, Central South University, Changsha 410008, China; (J.J.); (W.B.); (R.L.); (Q.X.); (S.L.)
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Shilei Liu
- NHC Key Laboratory of Cancer Proteomics, Department of Oncology, Xiangya Hospital, Central South University, Changsha 410008, China; (J.J.); (W.B.); (R.L.); (Q.X.); (S.L.)
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Ji-Chang Xiao
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Pengfei Zhang
- NHC Key Laboratory of Cancer Proteomics, Department of Oncology, Xiangya Hospital, Central South University, Changsha 410008, China; (J.J.); (W.B.); (R.L.); (Q.X.); (S.L.)
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
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Xie C, Zhou H, Qin D, Zheng H, Tang Y, Li W, Zhou J, Liu L, Yu X, Duan H, Zhou Y, Li Z, Fang Z, Luo Y, Carter BZ, Xu B, Zha J. Bcl-2 inhibition combined with PPARα activation synergistically targets leukemic stem cell-like cells in acute myeloid leukemia. Cell Death Dis 2023; 14:573. [PMID: 37644011 PMCID: PMC10465498 DOI: 10.1038/s41419-023-06075-6] [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: 02/08/2023] [Revised: 08/05/2023] [Accepted: 08/15/2023] [Indexed: 08/31/2023]
Abstract
Persistence of leukemic stem cells (LSCs) is one of the determining factors to acute myeloid leukemia (AML) treatment failure and responsible for the poor prognosis of the disease. Hence, novel therapeutic strategies that target LSCs are crucial for treatment success. We investigated if targeting Bcl-2 and peroxisome proliferator activated receptor α (PPARα), two distinct cell survival regulating mechanisms could eliminate LSCs. This study demonstrate that the Bcl-2 inhibitor venetoclax combined with the PPARα agonist chiglitazar resulted in synergistic killing of LSC-like cell lines and CD34+ primary AML cells while sparing their normal counterparts. Furthermore, the combination regimen significantly suppressed AML progression in patient-derived xenograft (PDX) mouse models. Mechanistically, chiglitazar-mediated PPARα activation inhibited the transcriptional activity of the PIK3AP1 gene promoter and down-regulated the PI3K/Akt signaling pathway and anti-apoptotic Bcl-2 proteins, leading to cell proliferation inhibition and apoptosis induction, which was synergized with venetoclax. These findings suggest that combinatorial Bcl-2 inhibition and PPARα activation selectively eliminates AML cells in vivo and vitro, representing an effective therapy for patients with relapsed and refractory AML.
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Grants
- The National Natural Science Foundation of China (No. U22A20290,82170180, 81800163, 82100204,81900164); Natural Science Foundation of Fujian Province, China (No.2023J06054,2020J05307,2020J011246, 2021J011359); The Xiamen Municipal Bureau of Science and Technology (3502Z20209003, 3502Z20209008).
- The National Natural Science Foundation of China (No. U22A20290,82170180, 81800163, 82100204,81900164); Natural Science Foundation of Fujian Province, China (No. 2020J05307,2020J011246, 2021J011359); The Xiamen Municipal Bureau of Science and Technology (3502Z20209003, 3502Z20209008).
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Affiliation(s)
- Chendi Xie
- Department of Hematology, the First Affiliated Hospital of Xiamen University and Institute of Hematology, School of Medicine, Xiamen University, Xiamen, China
- Key Laboratory of Xiamen for Diagnosis and Treatment of Hematological Malignancy, Xiamen, China
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Xiamen, China
| | - Hui Zhou
- Department of Hematology, the First Affiliated Hospital of Xiamen University and Institute of Hematology, School of Medicine, Xiamen University, Xiamen, China
- Key Laboratory of Xiamen for Diagnosis and Treatment of Hematological Malignancy, Xiamen, China
| | - Dongmei Qin
- Department of Hematology, the First Affiliated Hospital of Xiamen University and Institute of Hematology, School of Medicine, Xiamen University, Xiamen, China
- Key Laboratory of Xiamen for Diagnosis and Treatment of Hematological Malignancy, Xiamen, China
| | - Huijian Zheng
- School of Clinical Medicine, Fujian Medical University, Fuzhou, Fujian, China
| | - Yuanfang Tang
- Department of Hematology, the First Affiliated Hospital of Xiamen University and Institute of Hematology, School of Medicine, Xiamen University, Xiamen, China
- Key Laboratory of Xiamen for Diagnosis and Treatment of Hematological Malignancy, Xiamen, China
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Xiamen, China
| | - Wenjuan Li
- Department of Hematology, the First Affiliated Hospital of Xiamen University and Institute of Hematology, School of Medicine, Xiamen University, Xiamen, China
- Key Laboratory of Xiamen for Diagnosis and Treatment of Hematological Malignancy, Xiamen, China
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Xiamen, China
| | - Jie Zhou
- Department of Hematology, the First Affiliated Hospital of Xiamen University and Institute of Hematology, School of Medicine, Xiamen University, Xiamen, China
- Key Laboratory of Xiamen for Diagnosis and Treatment of Hematological Malignancy, Xiamen, China
| | - Long Liu
- Department of Hematology, the First Affiliated Hospital of Xiamen University and Institute of Hematology, School of Medicine, Xiamen University, Xiamen, China
- Key Laboratory of Xiamen for Diagnosis and Treatment of Hematological Malignancy, Xiamen, China
| | - Xinxin Yu
- Department of Hematology, the First Affiliated Hospital of Xiamen University and Institute of Hematology, School of Medicine, Xiamen University, Xiamen, China
- Key Laboratory of Xiamen for Diagnosis and Treatment of Hematological Malignancy, Xiamen, China
| | - Hongpeng Duan
- Department of Hematology, the First Affiliated Hospital of Xiamen University and Institute of Hematology, School of Medicine, Xiamen University, Xiamen, China
- Key Laboratory of Xiamen for Diagnosis and Treatment of Hematological Malignancy, Xiamen, China
| | - Yong Zhou
- Department of Hematology, the First Affiliated Hospital of Xiamen University and Institute of Hematology, School of Medicine, Xiamen University, Xiamen, China
- Key Laboratory of Xiamen for Diagnosis and Treatment of Hematological Malignancy, Xiamen, China
| | - Zhifeng Li
- Department of Hematology, the First Affiliated Hospital of Xiamen University and Institute of Hematology, School of Medicine, Xiamen University, Xiamen, China
- Key Laboratory of Xiamen for Diagnosis and Treatment of Hematological Malignancy, Xiamen, China
| | - Zhihong Fang
- Department of Hematology, the First Affiliated Hospital of Xiamen University and Institute of Hematology, School of Medicine, Xiamen University, Xiamen, China
- Key Laboratory of Xiamen for Diagnosis and Treatment of Hematological Malignancy, Xiamen, China
| | - Yiming Luo
- Department of Hematology, the First Affiliated Hospital of Xiamen University and Institute of Hematology, School of Medicine, Xiamen University, Xiamen, China
- Key Laboratory of Xiamen for Diagnosis and Treatment of Hematological Malignancy, Xiamen, China
| | - Bing Z Carter
- Section of Molecular Hematology and Therapy, Department of Leukemia, the University of Texas MD Anderson Cancer Center, Houston, Texas, USA.
| | - Bing Xu
- Department of Hematology, the First Affiliated Hospital of Xiamen University and Institute of Hematology, School of Medicine, Xiamen University, Xiamen, China.
- Key Laboratory of Xiamen for Diagnosis and Treatment of Hematological Malignancy, Xiamen, China.
| | - Jie Zha
- Department of Hematology, the First Affiliated Hospital of Xiamen University and Institute of Hematology, School of Medicine, Xiamen University, Xiamen, China.
- Key Laboratory of Xiamen for Diagnosis and Treatment of Hematological Malignancy, Xiamen, China.
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Zhou H, Jiang Y, Huang Y, Zhong M, Qin D, Xie C, Pan G, Tan J, Deng M, Zhao H, Zhou Y, Tang Y, Lai Q, Fang Z, Luo Y, Jiang Y, Xu B, Zha J. Therapeutic inhibition of PPARα-HIF1α-PGK1 signaling targets leukemia stem and progenitor cells in acute myeloid leukemia. Cancer Lett 2023; 554:215997. [PMID: 36396101 DOI: 10.1016/j.canlet.2022.215997] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 11/01/2022] [Accepted: 11/01/2022] [Indexed: 11/16/2022]
Abstract
Treatment of acute myeloid leukemia (AML) with chemotherapeutic agents fails to eliminate leukemia stem cells (LSC),and thus patients remain at high risk for relapse. Therefore, the identification of agents that target LSC is an important consideration for the development of new therapies. Enhanced glycolysis in LSC contributes to the aggressiveness of AML, which is difficult to be targeted. In this study, we showed that targeting peroxisome-proliferator-activated receptor α (PPARα), a ligand-activated transcription factor by chiglitazar provided a promising therapeutic approach. We first identified that chiglitazar reduced cell viability and proliferation of the leukemia stem-like cells population in AML. Treatment with chiglitazar blocked the ubiquitination of PPARα and increased its expression, resulting in the inhibition of glucose metabolism and apoptosis of AML cells. Consistent with its anti-leukemia stem-like cells activity in vitro, chiglitazar treatment in vivo resulted in the significant killing of leukemia stem-like cells as demonstrated in AML patient-derived xenograft (PDX) models. Mechanistically, PPARα overexpression inhibited the expression and promoter activity of PGK1 through blocking HIF1-α interaction on the PGK1 promoter. Thus, we concluded that targeting PPARα may serve as a novel approach for enhancing stem and progenitor cells elimination in AML.
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Affiliation(s)
- Hui Zhou
- Department of Hematology, The First Affiliated Hospital of Xiamen University and Institute of Hematology, School of Medicine, Xiamen University, Xiamen, China; Key Laboratory of Xiamen for Diagnosis and Treatment of Hematological Malignancy, Xiamen, 361003, China
| | - Yuelong Jiang
- Department of Hematology, The First Affiliated Hospital of Xiamen University and Institute of Hematology, School of Medicine, Xiamen University, Xiamen, China; Key Laboratory of Xiamen for Diagnosis and Treatment of Hematological Malignancy, Xiamen, 361003, China
| | - Yuetin Huang
- Department of Hematology, The First Affiliated Hospital of Xiamen University and Institute of Hematology, School of Medicine, Xiamen University, Xiamen, China; Key Laboratory of Xiamen for Diagnosis and Treatment of Hematological Malignancy, Xiamen, 361003, China
| | - Mengya Zhong
- Department of Hematology, The First Affiliated Hospital of Xiamen University and Institute of Hematology, School of Medicine, Xiamen University, Xiamen, China; Key Laboratory of Xiamen for Diagnosis and Treatment of Hematological Malignancy, Xiamen, 361003, China
| | - Dongmei Qin
- Department of Hematology, The First Affiliated Hospital of Xiamen University and Institute of Hematology, School of Medicine, Xiamen University, Xiamen, China; Key Laboratory of Xiamen for Diagnosis and Treatment of Hematological Malignancy, Xiamen, 361003, China
| | - Chendi Xie
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Xiamen, China
| | - Guangchao Pan
- Department of Hematology, The First Affiliated Hospital of Xiamen University and Institute of Hematology, School of Medicine, Xiamen University, Xiamen, China; Key Laboratory of Xiamen for Diagnosis and Treatment of Hematological Malignancy, Xiamen, 361003, China
| | - Jinshui Tan
- Department of Hematology, The First Affiliated Hospital of Xiamen University and Institute of Hematology, School of Medicine, Xiamen University, Xiamen, China; Key Laboratory of Xiamen for Diagnosis and Treatment of Hematological Malignancy, Xiamen, 361003, China
| | - Manman Deng
- Department of Hematology, The First Affiliated Hospital of Xiamen University and Institute of Hematology, School of Medicine, Xiamen University, Xiamen, China; Key Laboratory of Xiamen for Diagnosis and Treatment of Hematological Malignancy, Xiamen, 361003, China
| | - Haijun Zhao
- Department of Hematology, The First Affiliated Hospital of Xiamen University and Institute of Hematology, School of Medicine, Xiamen University, Xiamen, China; Key Laboratory of Xiamen for Diagnosis and Treatment of Hematological Malignancy, Xiamen, 361003, China
| | - Yong Zhou
- Department of Hematology, The First Affiliated Hospital of Xiamen University and Institute of Hematology, School of Medicine, Xiamen University, Xiamen, China; Key Laboratory of Xiamen for Diagnosis and Treatment of Hematological Malignancy, Xiamen, 361003, China
| | - Yuanfang Tang
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Xiamen, China
| | - Qian Lai
- Department of Hematology, The First Affiliated Hospital of Xiamen University and Institute of Hematology, School of Medicine, Xiamen University, Xiamen, China; Key Laboratory of Xiamen for Diagnosis and Treatment of Hematological Malignancy, Xiamen, 361003, China
| | - Zhihong Fang
- Department of Hematology, The First Affiliated Hospital of Xiamen University and Institute of Hematology, School of Medicine, Xiamen University, Xiamen, China; Key Laboratory of Xiamen for Diagnosis and Treatment of Hematological Malignancy, Xiamen, 361003, China
| | - Yiming Luo
- Department of Hematology, The First Affiliated Hospital of Xiamen University and Institute of Hematology, School of Medicine, Xiamen University, Xiamen, China; Key Laboratory of Xiamen for Diagnosis and Treatment of Hematological Malignancy, Xiamen, 361003, China
| | - Yirong Jiang
- Department of Hematology, Affiliated Dongguan People's Hospital, Southern Medical University (Dongguan People's Hospital), Dongguan, 523059, China.
| | - Bing Xu
- Department of Hematology, The First Affiliated Hospital of Xiamen University and Institute of Hematology, School of Medicine, Xiamen University, Xiamen, China; Key Laboratory of Xiamen for Diagnosis and Treatment of Hematological Malignancy, Xiamen, 361003, China.
| | - Jie Zha
- Department of Hematology, The First Affiliated Hospital of Xiamen University and Institute of Hematology, School of Medicine, Xiamen University, Xiamen, China; Key Laboratory of Xiamen for Diagnosis and Treatment of Hematological Malignancy, Xiamen, 361003, China.
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6
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Wagner N, Wagner KD. Peroxisome Proliferator-Activated Receptors and the Hallmarks of Cancer. Cells 2022; 11:cells11152432. [PMID: 35954274 PMCID: PMC9368267 DOI: 10.3390/cells11152432] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 08/02/2022] [Accepted: 08/04/2022] [Indexed: 12/11/2022] Open
Abstract
Peroxisome proliferator-activated receptors (PPARs) function as nuclear transcription factors upon the binding of physiological or pharmacological ligands and heterodimerization with retinoic X receptors. Physiological ligands include fatty acids and fatty-acid-derived compounds with low specificity for the different PPAR subtypes (alpha, beta/delta, and gamma). For each of the PPAR subtypes, specific pharmacological agonists and antagonists, as well as pan-agonists, are available. In agreement with their natural ligands, PPARs are mainly focused on as targets for the treatment of metabolic syndrome and its associated complications. Nevertheless, many publications are available that implicate PPARs in malignancies. In several instances, they are controversial for very similar models. Thus, to better predict the potential use of PPAR modulators for personalized medicine in therapies against malignancies, it seems necessary and timely to review the three PPARs in relation to the didactic concept of cancer hallmark capabilities. We previously described the functions of PPAR beta/delta with respect to the cancer hallmarks and reviewed the implications of all PPARs in angiogenesis. Thus, the current review updates our knowledge on PPAR beta and the hallmarks of cancer and extends the concept to PPAR alpha and PPAR gamma.
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Affiliation(s)
- Nicole Wagner
- Correspondence: (N.W.); (K.-D.W.); Tel.: +33-489-153-713 (K.-D.W.)
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Lüke F, Harrer DC, Pantziarka P, Pukrop T, Ghibelli L, Gerner C, Reichle A, Heudobler D. Drug Repurposing by Tumor Tissue Editing. Front Oncol 2022; 12:900985. [PMID: 35814409 PMCID: PMC9270020 DOI: 10.3389/fonc.2022.900985] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 05/20/2022] [Indexed: 11/13/2022] Open
Abstract
The combinatory use of drugs for systemic cancer therapy commonly aims at the direct elimination of tumor cells through induction of apoptosis. An alternative approach becomes the focus of attention if biological changes in tumor tissues following combinatory administration of regulatorily active drugs are considered as a therapeutic aim, e.g., differentiation, transdifferentiation induction, reconstitution of immunosurveillance, the use of alternative cell death mechanisms. Editing of the tumor tissue establishes new biological 'hallmarks' as a 'pressure point' to attenuate tumor growth. This may be achieved with repurposed, regulatorily active drug combinations, often simultaneously targeting different cell compartments of the tumor tissue. Moreover, tissue editing is paralleled by decisive functional changes in tumor tissues providing novel patterns of target sites for approved drugs. Thus, agents with poor activity in non-edited tissue may reveal new clinically meaningful outcomes. For tissue editing and targeting edited tissue novel requirements concerning drug selection and administration can be summarized according to available clinical and pre-clinical data. Monoactivity is no pre-requisite, but combinatory bio-regulatory activity. The regulatorily active dose may be far below the maximum tolerable dose, and besides inhibitory active drugs stimulatory drug activities may be integrated. Metronomic scheduling often seems to be of advantage. Novel preclinical approaches like functional assays testing drug combinations in tumor tissue are needed to select potential drugs for repurposing. The two-step drug repurposing procedure, namely establishing novel functional systems states in tumor tissues and consecutively providing novel target sites for approved drugs, facilitates the systematic identification of drug activities outside the scope of any original clinical drug approvals.
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Affiliation(s)
- Florian Lüke
- Department of Internal Medicine III, Hematology and Oncology, University Hospital Regensburg, Regensburg, Germany
- Division of Personalized Tumor Therapy, Fraunhofer Institute for Toxicology and Experimental Medicine, Regensburg, Germany
| | - Dennis Christoph Harrer
- Department of Internal Medicine III, Hematology and Oncology, University Hospital Regensburg, Regensburg, Germany
| | - Pan Pantziarka
- The George Pantziarka TP53 Trust, London, United Kingdom
| | - Tobias Pukrop
- Department of Internal Medicine III, Hematology and Oncology, University Hospital Regensburg, Regensburg, Germany
- Bavarian Cancer Research Center (BZKF), University Hospital Regensburg, Regensburg, Germany
| | - Lina Ghibelli
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Christopher Gerner
- Department of Analytical Chemistry, Faculty of Chemistry, University of Vienna, Vienna, Austria
| | - Albrecht Reichle
- Department of Internal Medicine III, Hematology and Oncology, University Hospital Regensburg, Regensburg, Germany
| | - Daniel Heudobler
- Department of Internal Medicine III, Hematology and Oncology, University Hospital Regensburg, Regensburg, Germany
- Bavarian Cancer Research Center (BZKF), University Hospital Regensburg, Regensburg, Germany
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8
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Xu G, Huang S, Peng J, Gao X, Li M, Yu S, Liu Z, Qie P, Wang Y, Yu S, Liu S, Wen H, Su L, Li P, Guang B, Dong R, Liu J, Yang T. Targeting lipid metabolism in multiple myeloma cells: rational development of a synergistic strategy with proteasome inhibitors. Br J Pharmacol 2021; 178:4741-4757. [PMID: 34378191 DOI: 10.1111/bph.15653] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 07/05/2021] [Accepted: 07/12/2021] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND AND PURPOSE Aberrant lipid metabolism is now recognized as a key feature of cancer cells. Our initial research on mass spectrometry-based analysis of lipids in a multiple myeloma (MM) cell line showed a significant accumulation of lipids in MM cells after proteasome inhibition. This finding prompted us to hypothesize that MM cell survival depends on the maximal utilization of abnormally accumulated lipids. Therefore, we explored whether lipid metabolism-modulating agents would synergize with proteasome inhibitors (PIs). EXPERIMENTAL APPROACH The abnormal massive lipid accumulation in MM cells was detected using mass spectrometry. Cell viability and cell apoptosis were detected to assess the synergistic effect of lipid regulators and PIs. Otherwise, a novel stable derivative (FCE) of fenofibrate (FEN) was synthesized and used to treat MM cells in vitro and in vivo along with ixazomib. ChIP-seq, western blotting and RT-qPCR were performed to explore the potential mechanism underlying the increase in lipid levels in MM cells after proteasome inhibition. KEY RESULTS The accumulation of lipids in MM cells was induced by proteasome inhibition. Lipid-lowering drugs and MG-132 exerted a synergistic effect to kill MM cells. FCE showed significant synergistic activity in vitro and in vivo with ixazomib. The abnormal lipid accumulation in MM cells that was enhanced by proteasome inhibitors might be due to the elevated SREBP1/2 expression induced by ATF4. CONCLUSIONS AND IMPLICATIONS In summary, the results provide a proof of principle and rationale for the further clinical evaluation of the combination of lipid-modulating drugs with proteasome inhibitors.
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Affiliation(s)
- Gaojie Xu
- School of Pharmacy, Chengdu Medical College, Chengdu, Sichuan Province, China
| | - Sheng Huang
- School of Pharmacy, Chengdu Medical College, Chengdu, Sichuan Province, China
| | - Jian Peng
- School of Pharmacy, Chengdu Medical College, Chengdu, Sichuan Province, China
| | - Xiaofang Gao
- School of Pharmacy, Chengdu Medical College, Chengdu, Sichuan Province, China
| | - Minhui Li
- School of Pharmacy, Chengdu Medical College, Chengdu, Sichuan Province, China
| | - Sisi Yu
- Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan Province, China
| | - Zuofeng Liu
- Department of Hematology, The Third People's Hospital of Chengdu, Chengdu, Sichuan Province, China
| | - Pengfan Qie
- School of Pharmacy, Chengdu Medical College, Chengdu, Sichuan Province, China
| | - Yu Wang
- School of Pharmacy, Chengdu Medical College, Chengdu, Sichuan Province, China
| | - Siqi Yu
- School of Pharmacy, Chengdu Medical College, Chengdu, Sichuan Province, China
| | - Siyuan Liu
- School of Pharmacy, Chengdu Medical College, Chengdu, Sichuan Province, China
| | - Hu Wen
- School of Pharmacy, Chengdu Medical College, Chengdu, Sichuan Province, China
| | - Lijuan Su
- School of Pharmacy, Chengdu Medical College, Chengdu, Sichuan Province, China
| | - Ping Li
- School of Pharmacy, Chengdu Medical College, Chengdu, Sichuan Province, China
| | - Bin Guang
- School of Pharmacy, Chengdu Medical College, Chengdu, Sichuan Province, China.,Chengdu Biobel Biotechnology Co., Ltd., Chengdu, Sichuan Province, China
| | - Renhan Dong
- School of Pharmacy, Chengdu Medical College, Chengdu, Sichuan Province, China.,Chengdu Biobel Biotechnology Co., Ltd., Chengdu, Sichuan Province, China
| | - Jin Liu
- School of Pharmacy, Chengdu Medical College, Chengdu, Sichuan Province, China
| | - Tai Yang
- School of Pharmacy, Chengdu Medical College, Chengdu, Sichuan Province, China
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9
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Qiao X, Gao YY, Zheng LX, Ding XJ, Xu LW, Hu JJ, Gao WZ, Xu JY. Targeting ROS-AMPK pathway by multiaction Platinum(IV) prodrugs containing hypolipidemic drug bezafibrate. Eur J Med Chem 2021; 223:113730. [PMID: 34388483 DOI: 10.1016/j.ejmech.2021.113730] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 07/13/2021] [Accepted: 07/27/2021] [Indexed: 12/23/2022]
Abstract
Alterations in lipid metabolism, commonly disregarded in the past, have been accepted as a hallmark for cancer. Exploring cancer therapeutics that interrupt the lipid metabolic pathways by monotherapy or combination with conventional chemotherapy or immunotherapy is of great importance. Here we modified cisplatin with an FDA-approved hypolipidemic drug, bezafibrate (BEZ), via the well-established Pt(IV) strategy, affording two multi-functional Pt(IV) anticancer agents cis,cis,trans-[Pt(NH3)2Cl2(BEZ)(OH)] (CB) and cis,cis,trans-[Pt(NH3)2Cl2(BEZ)2] (CP) (BEZ = bezafibrate). The Pt(IV) prodrug CB exhibited an enhanced anticancer activity up to 187-fold greater than the clinical anticancer drug cisplatin. Both CB and CP had less toxicity to normal cells, showing higher efficacies and superior therapeutic indexes than cisplatin. Mechanism studies revealed that the bezafibrate-conjugated Pt(IV) complex CB, as a representative, could massively accumulate in A549 cells and genomic DNA, induce DNA damage, elevate intracellular ROS levels, perturb mitochondrial transmembrane potentials, activate the cellular metabolic sensor AMPK, and result in profound proliferation inhibition and apoptosis. Further cellular data also provided evidence that phosphorylation of AMPK, as a metabolic sensor, could suppress the downstream HMGB1, NF-κB, and VEGFA, which may contribute to the inhibition of angiogenesis and metastasis. Our study suggests that the antitumor action of CB and CP mechanistically distinct from the conventional platinum drugs and that functionalizing platinum-based agents with lipid-modulating agents may represent a novel practical strategy for cancer treatment.
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Affiliation(s)
- Xin Qiao
- Department of Chemical Biology and Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of Pharmacy, Tianjin Medical University, Tianjin, 300070, China
| | - Yu-Yang Gao
- Department of Chemical Biology and Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of Pharmacy, Tianjin Medical University, Tianjin, 300070, China
| | - Li-Xia Zheng
- Department of Chemical Biology and Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of Pharmacy, Tianjin Medical University, Tianjin, 300070, China
| | - Xiao-Jing Ding
- Department of Chemical Biology and Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of Pharmacy, Tianjin Medical University, Tianjin, 300070, China
| | - Ling-Wen Xu
- Department of Chemical Biology and Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of Pharmacy, Tianjin Medical University, Tianjin, 300070, China
| | - Juan-Juan Hu
- Department of Chemical Biology and Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of Pharmacy, Tianjin Medical University, Tianjin, 300070, China
| | - Wei-Zhen Gao
- Department of Chemical Biology and Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of Pharmacy, Tianjin Medical University, Tianjin, 300070, China; Department of Pharmacology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, 300070, China.
| | - Jing-Yuan Xu
- Department of Chemical Biology and Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of Pharmacy, Tianjin Medical University, Tianjin, 300070, China.
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10
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Yang M, Wang Y, Chen J, Wang Q, Wei S, Wang S, Qin Q. Functional analysis of Epinephelus coioides peroxisome proliferative-activated receptor α (PPARα): Involvement in response to viral infection. FISH & SHELLFISH IMMUNOLOGY 2020; 102:257-266. [PMID: 32315742 DOI: 10.1016/j.fsi.2020.04.025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Revised: 04/10/2020] [Accepted: 04/12/2020] [Indexed: 06/11/2023]
Abstract
Peroxisome proliferative-activated receptor α (PPARα) belongs to the superfamily of nuclear receptors (NR). Studies have demonstrated that PPARα functions in energy metabolism, hepatic function, immune response, cell cycle, and apoptosis. In teleost fish, few studies have investigated the role of PPARα in the immune response. In this study, the grouper PPARα gene (EcPPARα) was investigated for its role in viral infection. The open reading frame of EcPPARα encoded a protein of 469 amino acids and contained an N-terminal domain (NTD), a DNA-binding domain (DBD), a hinge region, and a C-terminal ligand-binding domain (LBD). Phylogenetic analysis revealed that EcPPARα was most closely related to homologous genes in Sander lucioperca and Perca flavescens. Upon challenge with SGIV (Singapore grouper iridovirus) and RGNNV (Red-spotted grouper nervous necrosis virus), EcPPARα expression levels were significantly upregulated in different tissues. Subcellular localization analysis showed that the EcPPARα protein localized throughout the cytoplasm and nucleus with diffuse intracellular expression patterns, which is consistent with the localization pattern of mammalian PPARs. Based on morphological observation of cytopathic effect (CPEs), viral gene expression mRNAs, and virus titer assays, the results presented here showed that an overexpression of EcPPARα promoted SGIV production in grouper spleen cells. Overexpression of EcPPARα significantly inhibited the expression of several cytokines, including interferon-related genes (IFN-γ, ISG15, MXI, MXII, MAVS and MDA5), inflammatory cytokines (IL-1β, IL-6, IL-8, TNF-α) and Toll like receptor adaptors (TRAF6 and MyD88). Luciferase activity of IFN-α, IFN-γ, ISRE and NF-κB promoters was also significantly decreased in EcPPARα overexpression cells. Due to these detected interferon-related genes and inflammatory cytokines play important antiviral effect against SGIV in grouper, we speculated that the promotion effect of EcPPARα on SGIV replication may be caused by down-regulation of interferon and inflammatory response. In addition, through apoptotic body observation, capspase-3 activity detection, and flow cytometry analysis, it was found that overexpression of EcPPARα promoted SGIV-induced apoptosis in fathead minnow (FHM) cells. These data may increase an understanding of the role of PPARα in fish antiviral immune responses and apoptosis.
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Affiliation(s)
- Min Yang
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China
| | - Yuxin Wang
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China
| | - Jinpeng Chen
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China
| | - Qing Wang
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China
| | - Shina Wei
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China
| | - Shaowen Wang
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China
| | - Qiwei Qin
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266000, China.
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11
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Synergy Between Low Dose Metronomic Chemotherapy and the pH-centered Approach Against Cancer. Int J Mol Sci 2019; 20:ijms20215438. [PMID: 31683667 PMCID: PMC6862380 DOI: 10.3390/ijms20215438] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 10/25/2019] [Accepted: 10/29/2019] [Indexed: 12/12/2022] Open
Abstract
Low dose metronomic chemotherapy (MC) is becoming a mainstream treatment for cancer in veterinary medicine. Its mechanism of action is anti-angiogenesis by lowering vascular endothelial growth factor (VEGF) and increasing trombospondin-1 (TSP1). It has also been adopted as a compassionate treatment in very advanced human cancer. However, one of the main limitations of this therapy is its short-term effectiveness: 6 to 12 months, after which resistance develops. pH-centered cancer treatment (pHT) has been proposed as a complementary therapy in cancer, but it has not been adopted or tested as a mainstream protocol, in spite of existing evidence of its advantages and benefits. Many of the factors directly or indirectly involved in MC and anti-angiogenic treatment resistance are appropriately antagonized by pHT. This led to the testing of an association between these two treatments. Preliminary evidence indicates that the association of MC and pHT has the ability to reduce anti-angiogenic treatment limitations and develop synergistic anti-cancer effects. This review will describe each of these treatments and will analyze the fundamentals of their synergy.
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12
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Activation and Expression of Peroxisome Proliferator-Activated Receptor Alpha Are Associated with Tumorigenesis in Colorectal Carcinoma. PPAR Res 2019; 2019:7486727. [PMID: 31354797 PMCID: PMC6636540 DOI: 10.1155/2019/7486727] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 05/23/2019] [Accepted: 06/23/2019] [Indexed: 12/15/2022] Open
Abstract
Peroxisome proliferator-activated receptor alpha (PPAR-α) belongs to the PPAR family and plays a critical role in inhibiting cell proliferation and tumorigenesis in various tumors. However, the role of PPAR-α in colorectal tumorigenesis is unclear. In the present study, we found that fenofibrate, a PPAR-α agonist, significantly inhibited cell proliferation and induced apoptosis in colorectal carcinoma cells. In addition, PPAR-α was expressed in the nucleus of colorectal carcinoma cells, and the expression of nuclear PPAR-α increased in colorectal carcinoma tissue compared with that of normal epithelium tissue (P<0.01). The correlation between the expression of nuclear PPAR-α and clinicopathological factors was evaluated in human colorectal carcinoma tissues, and the nuclear expression of PPAR-α was significantly higher in well-to-moderately differentiated adenocarcinoma than in mucinous adenocarcinoma (P<0.05). These findings indicate that activation of PPAR-α may be involved in anticancer effects in colorectal carcinomas, and nuclear expression of PPAR-α may be a therapeutic target for colorectal adenocarcinoma treatment.
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13
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Luty M, Piwowarczyk K, Łabędź-Masłowska A, Wróbel T, Szczygieł M, Catapano J, Drabik G, Ryszawy D, Kędracka-Krok S, Madeja Z, Siedlar M, Elas M, Czyż J. Fenofibrate Augments the Sensitivity of Drug-Resistant Prostate Cancer Cells to Docetaxel. Cancers (Basel) 2019; 11:cancers11010077. [PMID: 30641904 PMCID: PMC6356694 DOI: 10.3390/cancers11010077] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 12/31/2018] [Accepted: 01/08/2019] [Indexed: 12/16/2022] Open
Abstract
Metronomic agents reduce the effective doses and adverse effects of cytostatics in cancer chemotherapy. Therefore, they can enhance the treatment efficiency of drug-resistant cancers. Cytostatic and anti-angiogenic effects of fenofibrate (FF) suggest that it can be used for the metronomic chemotherapy of drug-resistant prostate tumors. To estimate the effect of FF on the drug-resistance of prostate cancer cells, we compared the reactions of naïve and drug-resistant cells to the combined treatment with docetaxel (DCX)/mitoxantrone (MTX) and FF. FF sensitized drug-resistant DU145 and PC3 cells to DCX and MTX, as illustrated by their reduced viability and invasive potential observed in the presence of DCX/MTX and FF. The synergy of the cytostatic activities of both agents was accompanied by the inactivation of P-gp-dependent efflux, dysfunction of the microtubular system, and induction of polyploidy in DCX-resistant cells. Chemical inhibition of PPARα- and reactive oxygen species (ROS)-dependent pathways by GW6471 and N-acetyl-L-cysteine, respectively, had no effect on cell sensitivity to combined DCX/FF treatment. Instead, we observed the signs of adenosine triphosphate (ATP) deficit and autophagy in DCX/FF-treated drug-resistant cells. Furthermore, the cells that had been permanently propagated under DCX- and DCX/FF-induced stress did not acquire DCX/FF-resistance. Instead, relatively slow proliferation of DCX-resistant cells was efficiently inhibited by FF. Collectively, our observations show that FF reduces the effective doses of DCX by interfering with the drug resistance and energy metabolism of prostate cancer cells. Concomitantly, it impairs the chemotherapy-induced microevolution and expansion of DCX/FF-resistant cells. Therefore, FF can be applied as a metronomic agent to enhance the efficiency of palliative chemotherapy of prostate cancer.
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Affiliation(s)
- Marcin Luty
- Department of Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387 Kraków, Poland.
| | - Katarzyna Piwowarczyk
- Department of Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387 Kraków, Poland.
| | - Anna Łabędź-Masłowska
- Department of Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387 Kraków, Poland.
| | - Tomasz Wróbel
- Department of Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387 Kraków, Poland.
| | - Małgorzata Szczygieł
- Department of Biophysics, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387 Kraków, Poland.
| | - Jessica Catapano
- Department of Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387 Kraków, Poland.
| | - Grażyna Drabik
- Department of Transplantology, Institute of Paediatrics, Faculty of Medicine, Jagiellonian University Medical College, 265 Wielicka Str., 30-663 Kraków, Poland.
| | - Damian Ryszawy
- Department of Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387 Kraków, Poland.
| | - Sylwia Kędracka-Krok
- Department of Physical Biochemistry, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387 Kraków; and Proteomics and Mass Spectrometry Laboratory, Malopolska Centre of Biotechnology, Jagiellonian University, Gronostajowa 7A, 30-387 Krakow, Poland.
| | - Zbigniew Madeja
- Department of Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387 Kraków, Poland.
| | - Maciej Siedlar
- Department of Clinical Immunology, Institute of Paediatrics, Faculty of Medicine, Jagiellonian University Medical College, 265 Wielicka Str., 30-663 Kraków, Poland.
| | - Martyna Elas
- Department of Biophysics, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387 Kraków, Poland.
| | - Jarosław Czyż
- Department of Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387 Kraków, Poland.
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14
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Balaji S, Ahmed M, Lorence E, Yan F, Nomie K, Wang M. NF-κB signaling and its relevance to the treatment of mantle cell lymphoma. J Hematol Oncol 2018; 11:83. [PMID: 29907126 PMCID: PMC6002979 DOI: 10.1186/s13045-018-0621-5] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Accepted: 05/28/2018] [Indexed: 02/07/2023] Open
Abstract
Mantle cell lymphoma is an aggressive subtype of non-Hodgkin B cell lymphoma that is characterized by a poor prognosis determined by Ki67 and Mantle Cell International Prognostic Index scores, but it is becoming increasingly treatable. The majority of patients, especially if young, achieve a progression-free survival of at least 5 years. Mantle cell lymphoma can initially be treated with an anti-CD20 antibody in combination with a chemotherapy backbone, such as VR-CAP (the anti-CD20 monoclonal antibody rituximab administered with cyclophosphamide, doxorubicin, and prednisone) or R-CHOP (the anti-CD20 monoclonal antibody rituximab administered with cyclophosphamide, doxorubicin, vincristine, and prednisone). While initial treatment can facilitate recovery and complete remission in a few patients, many patients experience relapsed or refractory mantle cell lymphoma within 2 to 3 years after initial treatment. Targeted agents such as ibrutinib, an inhibitor of Bruton’s tyrosine kinase, which has been approved only in the relapsed setting, can be used to treat patients with relapsed or refractory mantle cell lymphoma. However, mantle cell lymphoma cells often acquire resistance to such targeted agents and continue to survive by activating alternate signaling pathways such as the PI3K-Akt pathway or the NF-κB pathways. NF-κB is a transcription factor family that regulates the growth and survival of B cells; mantle cell lymphoma cells depend on NF-κB signaling for continued growth and proliferation. The NF-κB signaling pathways are categorized into canonical and non-canonical types, wherein the canonical pathway prompts inflammatory responses, immune regulation, and cell proliferation, while the non-canonical leads to B cell maturation and lymphoid organogenesis. Since these pathways upregulate survival genes and tumor-promoting cytokines, they can be activated to overcome the inhibitory effects of targeted agents, thereby having profound effects on tumorigenesis. The NF-κB pathways are also highly targetable in that they are interconnected with numerous other pathways, including B cell receptor signaling, PI3K/Akt/mTOR signaling, and toll-like receptor signaling pathways. Additionally, elements of the non-canonical NF- κB pathway, such as NF-κB-inducing kinase, can be targeted to overcome resistance to targeting of the canonical NF- κB pathway. Targeting the molecular mechanisms of the NF-κB pathways can facilitate the development of novel agents to treat malignancies and overcome drug resistance in patients with relapsed or refractory mantle cell lymphoma.
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Affiliation(s)
- Swathi Balaji
- Department of Lymphoma/Myeloma, University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd. Unit 0429, Houston, TX, 77030-4009, USA
| | - Makhdum Ahmed
- Department of Lymphoma/Myeloma, University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd. Unit 0429, Houston, TX, 77030-4009, USA
| | - Elizabeth Lorence
- Department of Lymphoma/Myeloma, University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd. Unit 0429, Houston, TX, 77030-4009, USA
| | - Fangfang Yan
- Department of Lymphoma/Myeloma, University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd. Unit 0429, Houston, TX, 77030-4009, USA
| | - Krystle Nomie
- Department of Lymphoma/Myeloma, University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd. Unit 0429, Houston, TX, 77030-4009, USA
| | - Michael Wang
- Department of Lymphoma/Myeloma, University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd. Unit 0429, Houston, TX, 77030-4009, USA.
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15
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Lian X, Wang G, Zhou H, Zheng Z, Fu Y, Cai L. Anticancer Properties of Fenofibrate: A Repurposing Use. J Cancer 2018; 9:1527-1537. [PMID: 29760790 PMCID: PMC5950581 DOI: 10.7150/jca.24488] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Accepted: 02/25/2018] [Indexed: 12/22/2022] Open
Abstract
Cancer is a leading cause of death throughout the world, and cancer therapy remains a big medical challenge in terms of both its therapeutic efficacy and safety. Therefore, to find out a safe anticancer drug has been long goal for oncologist and medical scientists. Among clinically used medicines with no or little toxicity, fenofibrate is a drug of the fibrate class that plays an important role in lowering the levels of serum cholesterol and triglycerides while elevating the levels of high-density lipoproteins. Recently, several studies have implied that fenofibrate may exert anticancer effects via a variety of pathways involved in apoptosis, cell-cycle arrest, invasion, and migration. Given the great potential that fenofibrate may have anticancer effects, this review was to investigate all published works which directly or indirectly support the anticancer activity of fenofibrate. These studies provide evidence that fenofibrate exerted antitumor effects in several human cancer cell lines, such as breast, liver, glioma, prostate, pancreas, and lung cancer cell lines. Among these studies some have further confirmed the possibility and efficacy of fenofibrate anticancer in xenograft mouse models. In the last part of this review, we also discuss the potential mechanisms of action of fenofibrate based on the available information. Overall, we may repurpose fenofibrate as an anticancer drug in cancer treatment, which urgently need further and comprehensively investigated.
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Affiliation(s)
- Xin Lian
- Department of Urology, the First Hospital of Jilin University; 71 Xinmin Street, Changchun 130021, China.,Pediatric Research Institute, Department of Pediatrics, University of Louisville, Louisville, KY 40202, USA
| | - Gang Wang
- Department of Urology, the First Hospital of Jilin University; 71 Xinmin Street, Changchun 130021, China
| | - Honglan Zhou
- Department of Urology, the First Hospital of Jilin University; 71 Xinmin Street, Changchun 130021, China
| | - Zongyu Zheng
- Department of Urology, the First Hospital of Jilin University; 71 Xinmin Street, Changchun 130021, China.,Pediatric Research Institute, Department of Pediatrics, University of Louisville, Louisville, KY 40202, USA
| | - Yaowen Fu
- Department of Urology, the First Hospital of Jilin University; 71 Xinmin Street, Changchun 130021, China
| | - Lu Cai
- Department of Urology, the First Hospital of Jilin University; 71 Xinmin Street, Changchun 130021, China.,Pediatric Research Institute, Department of Pediatrics, University of Louisville, Louisville, KY 40202, USA.,Departments of Radiation Oncology, Pharmacology and Toxicology, University of Louisville, Louisville, KY 40202, USA
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16
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Kamarajugadda S, Becker JR, Hanse EA, Mashek DG, Mashek MT, Hendrickson AM, Mullany LK, Albrecht JH. Cyclin D1 represses peroxisome proliferator-activated receptor alpha and inhibits fatty acid oxidation. Oncotarget 2018; 7:47674-47686. [PMID: 27351284 PMCID: PMC5216970 DOI: 10.18632/oncotarget.10274] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Accepted: 06/04/2016] [Indexed: 01/27/2023] Open
Abstract
Cyclin D1 is a cell cycle protein that promotes proliferation by mediating progression through key checkpoints in G1 phase. It is also a proto-oncogene that is commonly overexpressed in human cancers. In addition to its canonical role in controlling cell cycle progression, cyclin D1 affects other aspects of cell physiology, in part through transcriptional regulation. In this study, we find that cyclin D1 inhibits the activity of a key metabolic transcription factor, peroxisome proliferator-activated receptor α (PPARα), a member of nuclear receptor family that induces fatty acid oxidation and may play an anti-neoplastic role. In primary hepatocytes, cyclin D1 inhibits PPARα transcriptional activity and target gene expression in a cdk4-independent manner. In liver and breast cancer cells, knockdown of cyclin D1 leads to increased PPARα transcriptional activity, expression of PPARα target genes, and fatty acid oxidation. Similarly, cyclin D1 depletion enhances binding of PPARα to target sequences by chromatin immunoprecipitation. In proliferating hepatocytes and regenerating liver in vivo, induction of endogenous cyclin D1 is associated with diminished PPARα activity. Cyclin D1 expression is both necessary and sufficient for growth factor-mediated repression of fatty acid oxidation in proliferating hepatocytes. These studies indicate that in addition to playing a pivotal role in cell cycle progression, cyclin D1 represses PPARα activity and inhibits fatty acid oxidation. Our findings establish a new link between cyclin D1 and metabolism in both tumor cells and physiologic hepatocyte proliferation.
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Affiliation(s)
- Sushama Kamarajugadda
- Gastroenterology Division, Minneapolis VA Health Care System, Minneapolis, MN 55417, USA
| | - Jennifer R Becker
- Minneapolis Medical Research Foundation, Minneapolis, MN, 55404, USA
| | - Eric A Hanse
- Minneapolis Medical Research Foundation, Minneapolis, MN, 55404, USA
| | - Douglas G Mashek
- Department of Biochemistry, Molecular Biology, and Biophysics, University of Minnesota, Minneapolis, MN 55455, USA
| | - Mara T Mashek
- Department of Biochemistry, Molecular Biology, and Biophysics, University of Minnesota, Minneapolis, MN 55455, USA
| | | | - Lisa K Mullany
- Minneapolis Medical Research Foundation, Minneapolis, MN, 55404, USA
| | - Jeffrey H Albrecht
- Gastroenterology Division, Minneapolis VA Health Care System, Minneapolis, MN 55417, USA
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Cheng Y, Wei Z, Xie S, Peng Y, Yan Y, Qin D, Liu S, Xu Y, Li G, Zhang L. Alleviation of Toxicity Caused by Overactivation of Pparα through Pparα-Inducible miR-181a2. MOLECULAR THERAPY. NUCLEIC ACIDS 2017; 9:195-206. [PMID: 29246298 PMCID: PMC5645307 DOI: 10.1016/j.omtn.2017.09.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/18/2016] [Revised: 09/21/2017] [Accepted: 09/21/2017] [Indexed: 11/16/2022]
Abstract
Widely varied compounds, including certain plasticizers, hypolipidemic drugs (e.g., ciprofibrate, fenofibrate, WY-14643, and clofibrate), agrochemicals, and environmental pollutants, are peroxisome proliferators (PPs). Appropriate dose of PPs causes a moderate increase in the number and size of peroxisomes and the expression of genes encoding peroxisomal lipid-metabolizing enzymes. However, high-dose PPs cause varied harmful effects. Chronic administration of PPs to mice and rats results in hepatomegaly and ultimately carcinogenesis. Nuclear receptor protein peroxisome proliferator-activated receptor-α (Pparα) was shown to be required for this process. However, biological adaptations to minimize this risk are poorly understood. In this study, we found that miR-181a2 expression was induced by the Pparα agonist WY-14643. Moreover, exogenous expression of miR-181a-5p dramatically alleviated the cell toxicity caused by overactivation of Pparα. Further studies showed that miR-181a-5p directly targeted the Pparα 3′ untranslated region and depressed the Pparα protein level. This study identified a feedback loop between miR-181a-5p and Pparα, which allows biological systems to approach a balance when Pparα is overactivated.
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Affiliation(s)
- Yanjie Cheng
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China; Bio-medical Center, Huazhong Agricultural University, Wuhan 430070, China
| | - Zhuying Wei
- The Key Laboratory of Mammalian, Reproductive Biology and Biotechnology of the Ministry of Education, College of Life Sciences, Inner Mongolia University, Hohhot, China
| | - Shengsong Xie
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
| | - You Peng
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
| | - Yi Yan
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China; Bio-medical Center, Huazhong Agricultural University, Wuhan 430070, China
| | - Dan Qin
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China; Bio-medical Center, Huazhong Agricultural University, Wuhan 430070, China
| | - Shenghui Liu
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China; Bio-medical Center, Huazhong Agricultural University, Wuhan 430070, China
| | - Yanling Xu
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China; Bio-medical Center, Huazhong Agricultural University, Wuhan 430070, China
| | - Guangpeng Li
- The Key Laboratory of Mammalian, Reproductive Biology and Biotechnology of the Ministry of Education, College of Life Sciences, Inner Mongolia University, Hohhot, China.
| | - Lisheng Zhang
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China; Bio-medical Center, Huazhong Agricultural University, Wuhan 430070, China.
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18
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Gou Q, Gong X, Jin J, Shi J, Hou Y. Peroxisome proliferator-activated receptors (PPARs) are potential drug targets for cancer therapy. Oncotarget 2017; 8:60704-60709. [PMID: 28948004 PMCID: PMC5601172 DOI: 10.18632/oncotarget.19610] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2017] [Accepted: 07/18/2017] [Indexed: 12/16/2022] Open
Abstract
Peroxisome-proliferator-activated receptors (PPARs) are nuclear hormone receptors including PPARα, PPARδ and PPARγ, which play an important role in regulating cancer cell proliferation, survival, apoptosis, and tumor growth. Activation of PPARs by endogenous or synthetic compounds regulates tumor progression in various tissues. Although each PPAR isotype suppresses or promotes tumor development depending on the specific tissues or ligands, the mechanism is still unclear. In this review, we summarized the regulative mechanism of PPARs on cancer progression.
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Affiliation(s)
- Qian Gou
- Department of Oncology, Affiliated Wujin People's Hospital, Jiangsu University, Changzhou, 212017, PR China.,Institute of Life Sciences, Jiangsu University, Zhenjiang, 212013, PR China
| | - Xin Gong
- Institute of Life Sciences, Jiangsu University, Zhenjiang, 212013, PR China
| | - Jianhua Jin
- Department of Oncology, Affiliated Wujin People's Hospital, Jiangsu University, Changzhou, 212017, PR China
| | - Juanjuan Shi
- Institute of Life Sciences, Jiangsu University, Zhenjiang, 212013, PR China
| | - Yongzhong Hou
- Department of Oncology, Affiliated Wujin People's Hospital, Jiangsu University, Changzhou, 212017, PR China.,Institute of Life Sciences, Jiangsu University, Zhenjiang, 212013, PR China
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19
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Anticancer activity of salicin and fenofibrate. Naunyn Schmiedebergs Arch Pharmacol 2017; 390:1061-1071. [DOI: 10.1007/s00210-017-1407-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2017] [Accepted: 07/12/2017] [Indexed: 12/12/2022]
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Gao J, Liu Q, Xu Y, Gong X, Zhang R, Zhou C, Su Z, Jin J, Shi H, Shi J, Hou Y. PPARα induces cell apoptosis by destructing Bcl2. Oncotarget 2016; 6:44635-42. [PMID: 26556865 PMCID: PMC4792581 DOI: 10.18632/oncotarget.5988] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Accepted: 10/01/2015] [Indexed: 01/09/2023] Open
Abstract
PPARα belongs to the peroxisome-proliferator-activated receptors (PPARs) family, which plays a critical role in inhibiting cell proliferation and tumorigenesis, while the molecular mechanism is still unclear. Here we report that PPARα serves as an E3 ubiquitin ligase to govern Bcl2 protein stability. PPARα physically bound to Bcl2 protein. In this process, PPARα/C102 was critical for PPARα binding to BH3 domain of Bcl2, subsequently, PPARα transferred K48-linked polyubiquitin to lysine-22 site of Bcl2 resulting in its ubiquitination and proteasome-dependent degradation. Importantly, overexpression of PPARα enhanced cancer cell chemotherapy sensitivity. In contrast, silenced PPARα decreased this event. These findings revealed a novel mechanism of PPARα governed endogenous Bcl2 protein stability leading to reduced cancer cell chemoresistance, which provides a potential drug target for cancer treatment.
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Affiliation(s)
- Jiaming Gao
- Department of Oncology, The Affiliated Wujin People's Hospital, Jiangsu University, Changzhou, Jiangsu Province, China.,Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu Province, China
| | - Qian Liu
- Department of Oncology, The Affiliated Wujin People's Hospital, Jiangsu University, Changzhou, Jiangsu Province, China
| | - Ying Xu
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu Province, China
| | - Xin Gong
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu Province, China
| | - Runyun Zhang
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu Province, China
| | - Chenglin Zhou
- Jiangsu Taizhou People's Hospital, Jiangsu Province, China
| | - Zhaoliang Su
- Department of Immunology & Laboratory Immunology, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu Province, China
| | - Jianhua Jin
- Department of Oncology, The Affiliated Wujin People's Hospital, Jiangsu University, Changzhou, Jiangsu Province, China
| | - Haifeng Shi
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu Province, China
| | - Juanjuan Shi
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu Province, China
| | - Yongzhong Hou
- Department of Oncology, The Affiliated Wujin People's Hospital, Jiangsu University, Changzhou, Jiangsu Province, China.,Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu Province, China
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Jan CI, Tsai MH, Chiu CF, Huang YP, Liu CJ, Chang NW. Fenofibrate Suppresses Oral Tumorigenesis via Reprogramming Metabolic Processes: Potential Drug Repurposing for Oral Cancer. Int J Biol Sci 2016; 12:786-98. [PMID: 27313493 PMCID: PMC4910598 DOI: 10.7150/ijbs.13851] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Accepted: 04/01/2016] [Indexed: 02/07/2023] Open
Abstract
One anticancer strategy suggests targeting mitochondrial metabolism to trigger cell death through slowing down energy production from the Warburg effect. Fenofibrate is a clinical lipid-lowering agent and an effective anticancer drug. In the present study, we demonstrate that fenofibrate provided novel mechanisms for delaying oral tumor development via the reprogramming of metabolic processes. Fenofibrate induced cytotoxicity by decreasing oxygen consumption rate (OCR) that was accompanied with increasing extracellular acidification rate (ECAR) and reducing ATP content. Moreover, fenofibrate caused changes in the protein expressions of hexokinase II (HK II), pyruvate kinase, pyruvate dehydrogenase, and voltage-dependent anion channel (VDAC), which are associated with the Warburg effect. In addition, fenofibrate reprogrammed the metabolic pathway by interrupting the binding of HK II to VDAC. In an oral cancer mouse model, fenofibrate exhibited both preventive and therapeutic efficacy on oral tumorigenesis. Fenofibrate administration suppressed the incidence rate of tongue lesions, reduced the tumor sizes, decreased the tumor multiplicity, and decreased the immunoreactivities of VDAC and mTOR. The molecular mechanisms involved in fenofibrate's ability to delay tumor development included the down-regulation of mTOR activity via TSC1/2-dependent signaling through activation of AMPK and inactivation of Akt, or via a TSC1/2-independent pathway through direct suppression of raptor. Our findings provide a molecular rationale whereby fenofibrate exerts anticancer and additional beneficial effects for the treatment of oral cancer patients.
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Affiliation(s)
- Chia-Ing Jan
- 1. Department of Pathology, China Medical University and Hospital, Taichung, Taiwan, ROC; 2. Department of Pathology, China Medical University and Beigang Hospital, Yunlin, Taiwan.TOC
| | - Ming-Hsui Tsai
- 3. Department of Otolaryngology, China Medical University and Hospital, Taichung, Taiwan, ROC
| | - Chang-Fang Chiu
- 4. Department of Hematology Oncology, China Medical University and Hospital, Taichung, Taiwan, ROC
| | - Yi-Ping Huang
- 5. Department of Physiology, College of Medicine, China Medical University, Taichung, Taiwan, ROC
| | - Chia Jen Liu
- 6. Department of Biochemistry, College of Medicine, China Medical University, Taichung, Taiwan, ROC
| | - Nai Wen Chang
- 6. Department of Biochemistry, College of Medicine, China Medical University, Taichung, Taiwan, ROC
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Huang YP, Chang NW. PPARα modulates gene expression profiles of mitochondrial energy metabolism in oral tumorigenesis. Biomedicine (Taipei) 2016; 6:3. [PMID: 26869356 PMCID: PMC4751096 DOI: 10.7603/s40681-016-0003-7] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Accepted: 08/15/2015] [Indexed: 11/16/2022] Open
Abstract
Metabolic reprogramming plays a crucial role in the development of cancer. The aim of this study was to explore the effect of fenofibrate, an agonist of peroxisome proliferator-activated receptor alpha (PPARα), on gene expression profiles of mitochondrial energy metabolism. Our results showed that PPARα expression was negatively correlated with tumor progression in an oral cancer mouse model. Activation of PPARα through fenofibrate suppressed migration of oral cancer cells. Differential protein profiling demonstrated that expressions of genes related to mitochondrial energy metabolism were either up-regulated (Atp5g3, Cyc1, Ndufa5, Ndufa10, and Sdhd) or down-regulated (Cox5b, Ndufa1, Ndufb7, and Uqcrh) through PPARα activation and response. Our results indicate that PPARα exhibits a great potential for anti-oral cancer therapies by modulating cancer cell mitochondrial energy metabolism.
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Affiliation(s)
- Yi-Ping Huang
- Department of Physiology, College of Medicine, China Medical University, 404, Taichung, Taiwan
| | - Nai Wen Chang
- Department of Biochemistry, College of Medicine,, China Medical University, 404, No. 91, Hsueh-Shih Road, Taichung, Taiwan.
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23
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PPARα regulates tumor progression, foe or friend? Eur J Pharmacol 2015; 765:560-4. [PMID: 26409040 DOI: 10.1016/j.ejphar.2015.09.027] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Revised: 09/15/2015] [Accepted: 09/15/2015] [Indexed: 11/21/2022]
Abstract
PPARα belongs to the peroxisome-proliferator-activated receptors (PPARs) family that consists of PPARα, PPARδ, and PAPRγ. Activation of PPARα by ligands including fatty acids and their derivatives as well as some synthetic compounds regulates tumor progression in various tissues. Activated PPARα inhibits or promotes tumorigenesis depending on the specific tissues, but the molecular mechanism is still unclear. In this review, the recent progress of PPARα regulating tumorigenesis is discussed.
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Liu J, Ge YY, Zhu HC, Yang X, Cai J, Zhang C, Lu J, Zhan LL, Qin Q, Yang Y, Yang YH, Zhang H, Chen XC, Liu ZM, Ma JX, Cheng HY, Sun XC. Fenofibrate increases radiosensitivity in head and neck squamous cell carcinoma via inducing G2/M arrest and apoptosis. Asian Pac J Cancer Prev 2015; 15:6649-55. [PMID: 25169503 DOI: 10.7314/apjcp.2014.15.16.6649] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Radiation therapy is an important treatment for head and neck squamous cell carcinoma (HNSCC). However, how to promote radiation sensitivity in HNSCC remains a challenge. This study aimed to investigate the radiosensitizing effects of fenofibrate on HNSCC and explore the underlying mechanisms. HNSCC cell lines CNE-2 and KB were subjected to ionizing radiation (IR), in the presence or absence of fenofibrate treatment. Cell growth and survival, apoptosis and cell cycle were evaluated. In addition, CNE-2 cells were xenografted into nude mice and subjected to IR and/ or fenofibrate treatment. The expression of cyclinB and CDK1 was detected by Western blotting. Our results showed that fenofibrate efficiently radiosensitized HNSCC cells and xenografts in mice, and induced apoptosis and G2/M arrest via reducing the activity of the CDK1/cyclinB1 kinase complex. These data suggest that fenofibrate could be a promising radiosensitizer for HNSCC radiotherapy.
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Affiliation(s)
- Jia Liu
- Department of Radiation Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China E-mail :
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Abstract
Objective: To review the mechanisms of anti-cancer activity of fenofibrate (FF) and other Peroxisome Proliferator Activator Receptor α (PPARα) agonists based on evidences reported in the published literature.Methods: We extensively reviewed the literature concerning FF as an off target anti-cancer drug. Controversies regarding conflicting findings were also addressed.Results: The main mechanism involved in anti-cancer activity is anti-angiogenesis through down-regulation of Vascular Endothelial Growth Factor (VEGF), Vascular Endothelial Growth Factor Receptor (VEGFR) and Hypoxia Inducible factor-1 α (HIF-1α), inhibition of endothelial cell migration, up-regulation of endostatin and thrombospondin-1, but there are many other contributing mechanisms like apoptosis and cell cycle arrest, down-regulation of Nuclear Factor Kappa B (NF-kB) and Protein kinase B (Akt) and decrease of cellular energy by impairing mitochondrial function. Growth impairment is related to down-regulation of Phospho-Inositol 3 Kinase (PI3K)/Akt axis and down-regulation of the p38 map kinase (MAPK) cascade. A possible role should be assigned to FF stimulated over-expression of Tribbles Homolog-3 (TRIB3) which inhibits Akt phosphorylation. Important anti-cancer and anti-metastatic activities are due to down-regulation of MCP-1 (monocyte chemotactic protein-1), decreased Metalloprotease-9 (MMP-9) production, weak down-regulation of adhesion molecules like E selectin, intercellular adhesion molecules (ICAM) and Vascular Endothelial Adhesion Molecules (VCAM), and decreased secretion of chemokines like Interleukin-6 (IL-6), and down-regulation of cyclin D-1. There is no direct link between FF activity in lipid metabolism and anticancer activity, except for the fact that many anticancer actions are dependent from PPARα agonism. FF exhibits also PPARα independent anti-cancer activities.Conclusions: There are strong evidences indicating that FF can disrupt growth-related activities in many different cancers, due to anti-angiogenesis and anti-inflammatory effects. Therefore FF may be useful as a complementary adjunct treatment of cancer, particularly included in anti-angiogenic protocols like those currently increasingly used in glioblastoma. There are sound reasons to initiate well planned phase II clinical trials for FF as a complementary adjunct treatment of cancer.
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Wang Z, Moran E, Ding L, Cheng R, Xu X, Ma JX. PPARα regulates mobilization and homing of endothelial progenitor cells through the HIF-1α/SDF-1 pathway. Invest Ophthalmol Vis Sci 2014; 55:3820-32. [PMID: 24845641 DOI: 10.1167/iovs.13-13396] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
PURPOSE The mechanism for the antiangiogenic activity of peroxisome proliferator-activated receptor alpha (PPARα) remains incompletely understood. Endothelial progenitor cells (EPC) are known to participate in neovascularization (NV). The purpose of this study was to investigate whether PPARα regulates EPC during retinal NV. METHODS Retinal NV was induced by oxygen-induced retinopathy (OIR). Mice with OIR were injected intraperitoneally with the PPARα agonist fenofibric acid (FA) or with adenovirus expressing PPARα (Ad-PPARα). Flow cytometry was used to quantify circulating and retinal EPC. Serum stromal cell-derived factor 1 (SDF-1) levels were measured by ELISA. Hypoxia was induced in primary human retinal capillary endothelial cells (HRCEC) and mouse brain endothelial cells (MBEC) by CoCl2. Levels of SDF-1 and hypoxia-inducible factor 1 alpha (HIF-1α) were measured by Western blotting. RESULTS Fenofibric acid and overexpression of PPARα attenuated the increase of circulating and retinal EPC, correlating with suppressed retinal NV in OIR mice at P17. The PPARα knockout enhanced the OIR-induced increase of circulating and retinal EPC. Fenofibric acid decreased retinal HIF-1α and SDF-1 levels as well as serum SDF-1 levels in the OIR model. In HRCEC, PPARα inhibited HIF-1α nuclear translocation and SDF-1 overexpression induced by hypoxia. Further, MBEC from PPARα(-/-) mice showed more prominent activation of HIF-1α and overexpression of SDF-1 induced by hypoxia, compared with the wild-type (WT) MBEC. PPARα failed to block SDF-1 overexpression induced by a constitutively active mutant of HIF-1α, suggesting that regulation of SDF-1 by PPARα was through blockade of HIF-1α activation. CONCLUSIONS Peroxisome proliferator-activated receptor alpha suppresses ischemia-induced EPC mobilization and homing through inhibition of the HIF-1α/SDF-1 pathway. This represents a novel molecular mechanism for PPARα's antiangiogenic effects.
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Affiliation(s)
- Zhongxiao Wang
- Department of Ophthalmology, Shanghai First People's Hospital Affiliated with Shanghai Jiaotong University, Shanghai, China Department of Physiology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States
| | - Elizabeth Moran
- Department of Physiology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States
| | - Lexi Ding
- Department of Physiology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States Department of Ophthalmology, Xiangya Hospital, Central South University, Changsha, China
| | - Rui Cheng
- Department of Physiology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States
| | - Xun Xu
- Department of Ophthalmology, Shanghai First People's Hospital Affiliated with Shanghai Jiaotong University, Shanghai, China
| | - Jian-xing Ma
- Department of Physiology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States
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Li T, Zhang Q, Zhang J, Yang G, Shao Z, Luo J, Fan M, Ni C, Wu Z, Hu X. Fenofibrate induces apoptosis of triple-negative breast cancer cells via activation of NF-κB pathway. BMC Cancer 2014; 14:96. [PMID: 24529079 PMCID: PMC4015735 DOI: 10.1186/1471-2407-14-96] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2013] [Accepted: 02/12/2014] [Indexed: 12/14/2022] Open
Abstract
Background There are a lot of unmet needs in patients with triple-negative breast cancer (TNBC). Fenofibrate, a peroxisome proliferator-activated receptor alpha (PPAR-α) agonist, has been used for decades to treat hypertriglyceridaemia and mixed dyslipidaemia. Recent studies show that it might have anti-tumor effects, however, the mechanism remains unclear. Here, we assessed the ability of fenofibrate to induce apoptosis of TNBC in vitro and in vivo and explored involved mechanisms. Methods MTT method was used to evaluate the anti-proliferation effect of fenofibrate, and invert microscope to observe the apoptotic morphological changes. The percentage of apoptotic cells and distribution ratios of cell cycle were determined by flow cytometric analysis. The related protein levels were measured by Western blot method. The changes of genes and pathways were detected by gene expression profiling. The tumor growth in vivo was assessed by MDA-MB-231 xenograft mouse model. Terminal deoxytransferase-catalyzed DNA nick-end labeling (TUNEL) assay was employed to estimate the percentage of apoptotic cells in vivo. In order to evaluate the safety of fenofibrate, blood sampled from rat eyes was detected. Results We found that fenofibrate had anti-proliferation effects on breast cancer cell lines, of which the first five most sensitive ones were all TNBC cell lines. Its induction of apoptosis was independent on PPAR-α status with the highest apoptosis percentage of 41.8 ± 8.8%, and it occurred in a time- and dose-dependent manner accompanied by up-regulation of Bad, down-regulation of Bcl-xl, Survivin and activation of caspase-3. Interestingly, activation of NF-κB pathway played an important role in the induction of apoptosis by fenofibtate and the effect could be almost totally blocked by a NF-κB specific inhibitor, pyrrolidine dithiocarbamate (PDTC). In addition, fenofibrate led to cell cycle arrest at G0/G1 phase accompanied by down-regulation of Cyclin D1, Cdk4 and up-regulation of p21, p27/Kip1. In vivo, fenofibrate slowed down tumor growth and induced apoptosis with a good safety profile in the MDA-MB-231 xengograft mouse model. Conclusions It is concluded that fenofibrate induces apoptosis of TNBC via activation of NF-κB pathway in a PPAR-α independent way, and may serve as a novel therapeutic drug for TNBC therapy.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Xichun Hu
- Department of Medical Oncology, Fudan University Shanghai Cancer Center, 200032 Shanghai, China.
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Ibrahim MA, El-Sheikh AAK, Khalaf HM, Abdelrahman AM. Protective effect of peroxisome proliferator activator receptor (PPAR)-α and -γ ligands against methotrexate-induced nephrotoxicity. Immunopharmacol Immunotoxicol 2014; 36:130-7. [PMID: 24521009 DOI: 10.3109/08923973.2014.884135] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
CONTEXT The anticancer drug methotrexate (MTX) may cause multi-organ toxicities, including nephrotoxicity. OBJECTIVE To investigate effects of peroxisome proliferator activator receptor (PPAR)-α and -γ agonists; fenofibrate (FEN) and pioglitazone (PIO), in MTX-induced nephrotoxicity in rats. METHODS Rats were given FEN or PIO (150 or 5 mg/kg/day, respectively) orally for 15 days. MTX was injected as a single dose of 20 mg/kg, i.p. at day 11 of experiment, with or without either PPAR agonists. RESULTS MTX induced renal toxicity, assessed by increase in serum urea and creatinine as well as histopathological alterations. MTX caused renal oxidative/nitrosative stress, indicated by decrease in GSH and catalase with increase in malondialdehyde and nitric oxide (NOx) levels. In addition, MTX increased renal level of the pro-inflammatory cytokine; tumor necrosis factor (TNF)-α and up-regulated the expression of both the inflammatory and apoptotic markers; NF-κB and caspase 3. Pre-administration of FEN or PIO to MTX-treated rats improved renal function and reversed oxidative/nitrosative parameters. Interestingly, pre-administration of PIO, but not FEN, decreased renal TNF-α level and NF-κB expression compared to MTX alone. Furthermore, PIO had more significant effect than FEN on reversing MTX-induced renal caspase 3 expression. DISCUSSION Both FEN and PIO conferred protection against MTX-induced nephrotoxicity through comparable amelioration of oxidative/nitrosative stress. FEN lacked any effect on TNF-α/NF-κB, which was reflected on its less improvement on renal histopathology and apoptosis. CONCLUSION At indicated dosage, PPAR-γ ligand; PIO shows better improvement of MTX-induced nephrotoxicity compared to PPAR-α ligand; FEN due to differential effect on TNF-α/NF-κB inflammatory pathway.
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Affiliation(s)
- Mohamed A Ibrahim
- Department of Pharmacology, Faculty of Medicine, Minia University , Minia , Egypt
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Binello E, Mormone E, Emdad L, Kothari H, Germano IM. Characterization of fenofibrate-mediated anti-proliferative pro-apoptotic effects on high-grade gliomas and anti-invasive effects on glioma stem cells. J Neurooncol 2014; 117:225-34. [PMID: 24493576 DOI: 10.1007/s11060-014-1385-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2013] [Accepted: 01/20/2014] [Indexed: 11/24/2022]
Abstract
Glioblastoma is the most common, and at the same time, most aggressive type of high-grade glioma (HGG). The prognosis of glioblastoma patients treated with standard therapy including surgery, temozolomide and radiation therapy remains poor. Peroxisome proliferator-activated receptor-α (PPARα) agonists are in widespread clinical use for the treatment of hyperlipidemia. Recent evidence has suggested a potential role in various cancers including glioblastoma. In this study, we characterized the effects of PPARα agonist, fenofibrate, directly on HGG cells and glioma stem cells (GSC). Fenofibrate exhibited dose-dependent p53-independent anti-proliferative effects on HGG starting at 25 μM and pro-apoptotic effects starting at 50 μM, suggesting that the anti-proliferative actions are present only at 25 μM. PPARα was expressed in all HGG cell lines. Inhibition of PPARα with specific inhibitor GW6471 did not affect either proliferation or apoptosis suggesting that these are PPARα-independent effects. Fenofibrate treatment of HGG cells robustly diminished the expression of key signaling pathways, including NF-κB and cyclin D1. Phosphorylation of Akt was also diminished, with no change in total Akt. Effects on apoptotic signaling molecules, Bax and Bcl-xL, had a trend towards pro-apoptotic effects. With respect to GSC, fenofibrate treatment at 25 μM significantly decreased invasion in association with a decrease in CD133 and Oct4 expression. Overall, results support consideration of fenofibrate as an anti-glioma agent and establish its potential as an adjunct treatment strategy for HGG. Translation to the clinical setting could be rapid given its current use as a clinical agent and its low toxicity profile.
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Affiliation(s)
- Emanuela Binello
- Department of Neurosurgery, Mount Sinai School of Medicine, 1 Gustave L. Levy Place, Box 1136, New York, NY, 10029, USA
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Grabacka M, Pierzchalska M, Reiss K. Peroxisome proliferator activated receptor α ligands as anticancer drugs targeting mitochondrial metabolism. Curr Pharm Biotechnol 2013; 14:342-56. [PMID: 21133850 DOI: 10.2174/1389201011314030009] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2010] [Revised: 07/15/2010] [Accepted: 09/17/2010] [Indexed: 12/15/2022]
Abstract
Tumor cells show metabolic features distinctive from normal tissues, with characteristically enhanced aerobic glycolysis, glutaminolysis and lipid synthesis. Peroxisome proliferator activated receptor α (PPAR α) is activated by nutrients (fatty acids and their derivatives) and influences these metabolic pathways acting antagonistically to oncogenic Akt and c-Myc. Therefore PPAR α can be regarded as a candidate target molecule in supplementary anticancer pharmacotherapy as well as dietary therapeutic approach. This idea is based on hitting the cancer cell metabolic weak points through PPAR α mediated stimulation of mitochondrial fatty acid oxidation and ketogenesis with simultaneous reduction of glucose and glutamine consumption. PPAR α activity is induced by fasting and its molecular consequences overlap with the effects of calorie restriction and ketogenic diet (CRKD). CRKD induces increase of NAD+/NADH ratio and drop in ATP/AMP ratio. The first one is the main stimulus for enhanced protein deacetylase SIRT1 activity; the second one activates AMP-dependent protein kinase (AMPK). Both SIRT1 and AMPK exert their major metabolic activities such as fatty acid oxidation and block of glycolysis and protein, nucleotide and fatty acid synthesis through the effector protein peroxisome proliferator activated receptor gamma 1 α coactivator (PGC-1α). PGC-1α cooperates with PPAR α and their activities might contribute to potential anticancer effects of CRKD, which were reported for various brain tumors. Therefore, PPAR α activation can engage molecular interplay among SIRT1, AMPK, and PGC-1α that provides a new, low toxicity dietary approach supplementing traditional anticancer regimen.
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Affiliation(s)
- Maja Grabacka
- Department of Food Biotechnology, Faculty of Food Technology, University of Agriculture, Krakow 30- 149, ul. Balicka 122, Poland.
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31
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Chaturvedi NK, Rajule RN, Shukla A, Radhakrishnan P, Todd GL, Natarajan A, Vose JM, Joshi SS. Novel treatment for mantle cell lymphoma including therapy-resistant tumor by NF-κB and mTOR dual-targeting approach. Mol Cancer Ther 2013; 12:2006-17. [PMID: 23963361 DOI: 10.1158/1535-7163.mct-13-0239] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Mantle cell lymphoma (MCL) is one of the most aggressive B-cell non-Hodgkin lymphomas with a median survival of approximately five years. Currently, there is no curative therapy available for refractory MCL because of relapse from therapy-resistant tumor cells. The NF-κB and mTOR pathways are constitutively active in refractory MCL leading to increased proliferation and survival. Targeting these pathways is an ideal strategy to improve therapy for refractory MCL. Therefore, we investigated the in vitro and in vivo antilymphoma activity and associated molecular mechanism of action of a novel compound, 13-197, a quinoxaline analog that specifically perturbs IκB kinase (IKK) β, a key regulator of the NF-κB pathway. 13-197 decreased the proliferation and induced apoptosis in MCL cells including therapy-resistant cells compared with control cells. Furthermore, we observed downregulation of IκBα phosphorylation and inhibition of NF-κB nuclear translocation by 13-197 in MCL cells. In addition, NF-κB-regulated genes such as cyclin D1, Bcl-XL, and Mcl-1 were downregulated in 13-197-treated cells. In addition, 13-197 inhibited the phosphorylation of S6K and 4E-BP1, the downstream molecules of mTOR pathway that are also activated in refractory MCL. Further, 13-197 reduced the tumor burden in vivo in the kidney, liver, and lungs of therapy-resistant MCL-bearing nonobese diabetic severe-combined immunodeficient (NOD/SCID) mice compared with vehicle-treated mice; indeed, 13-197 significantly increased the survival of MCL-transplanted mice. Together, results suggest that 13-197 as a single agent disrupts the NF-κB and mTOR pathways leading to suppression of proliferation and increased apoptosis in malignant MCL cells including reduction in tumor burden in mice.
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Affiliation(s)
- Nagendra K Chaturvedi
- Corresponding Author: Shantaram S. Joshi, Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center, 986395 Nebraska Medical Center, Omaha, NE 68198-6395.
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Huang YC, Liu KC, Chiou YL, Yang CH, Chen TH, Li TT, Liu LL. Fenofibrate suppresses melanogenesis in B16-F10 melanoma cells via activation of the p38 mitogen-activated protein kinase pathway. Chem Biol Interact 2013; 205:157-64. [PMID: 23872139 DOI: 10.1016/j.cbi.2013.07.008] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2013] [Revised: 06/17/2013] [Accepted: 07/11/2013] [Indexed: 12/13/2022]
Abstract
Fenofibrate and ciglitazone belong to the classes of fibrates and thiazolidinediones, respectively. Their pharmacological actions on peroxisome proliferator-activated receptors (PPARs) present a potential therapy for hyperlipidemia and hyperglycemia. However, the melanogenesis affected by PPAR ligands in melanocytes has not been well investigated. By determining the melanin content of cells treated with PPAR agonists, we showed that fenofibrate significantly reduced melanin synthesis, but its major active metabolite, fenofibric acid, did not. Notably, the suppression of melanogenesis by fenofibrate could not be prevented by the PPARα specific antagonist GW6471. In addition, T0901317, a liver X receptor (LXR) agonist, restored the antimelanogenic activity of fenofibrate. Accordingly, fenofibrate may suppress melanogenesis through a PPARα-independent pathway. Treatment of cells with fenofibrate led to the down-regulated gene expression of melanocortin 1 receptor (MC1R). Fenofibrate also attenuated the dihydroxyphenylalanine (DOPA)-staining activity and expression of tyrosinase as well as the expression of microphthalmia-associated transcription factor (MITF). The phosphorylation of p38 mitogen-activated protein kinase (MAPK) was stimulated by fenofibrate. Furthermore, the p38 MAPK inhibitor SB203580 prevented the repressive effects of fenofibrate on the melanin production. Taken together, the results of the present study suggest that fenofibrate inhibits melanin synthesis via the down-regulation of MC1R, the up-regulation of p38 MAPK, and interference with LXR signaling pathways to decrease the expression of tyrosinase in B16-F10 melanoma cells.
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Affiliation(s)
- Yu-Chun Huang
- Department of Cosmetic Science, Providence University, No. 200, Sec. 7, Taiwan Boulevard, Shalu Dist., Taichung City 43301, Taiwan, ROC.
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Liang H, Kowalczyk P, Junco JJ, Klug-De Santiago HL, Malik G, Wei SJ, Slaga TJ. Differential effects on lung cancer cell proliferation by agonists of glucocorticoid and PPARα receptors. Mol Carcinog 2013; 53:753-63. [DOI: 10.1002/mc.22029] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2012] [Accepted: 03/01/2013] [Indexed: 12/13/2022]
Affiliation(s)
- Huiyun Liang
- Department of Cellular and Structural Biology; University of Texas Health Science Center at San Antonio; San Antonio, Texas
- Medical Research Division, Regional Academic Health Center at Edinburg; University of Texas Health Science Center at San Antonio; Edinburg, Texas
| | - Piotr Kowalczyk
- Department of Pharmacology; University of Texas Health Science Center at San Antonio; San Antonio, Texas
| | - Jacob J. Junco
- Department of Pharmacology; University of Texas Health Science Center at San Antonio; San Antonio, Texas
| | - Heather L. Klug-De Santiago
- Medical Research Division, Regional Academic Health Center at Edinburg; University of Texas Health Science Center at San Antonio; Edinburg, Texas
| | - Gunjan Malik
- Department of Pharmacology; University of Texas Health Science Center at San Antonio; San Antonio, Texas
| | - Sung-Jen Wei
- Medical Research Division, Regional Academic Health Center at Edinburg; University of Texas Health Science Center at San Antonio; Edinburg, Texas
- Department of Pharmacology; University of Texas Health Science Center at San Antonio; San Antonio, Texas
| | - Thomas J. Slaga
- Department of Cellular and Structural Biology; University of Texas Health Science Center at San Antonio; San Antonio, Texas
- Department of Pharmacology; University of Texas Health Science Center at San Antonio; San Antonio, Texas
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Huang J, Das SK, Jha P, Al Zoughbi W, Schauer S, Claudel T, Sexl V, Vesely P, Birner-Gruenberger R, Kratky D, Trauner M, Hoefler G. The PPARα agonist fenofibrate suppresses B-cell lymphoma in mice by modulating lipid metabolism. Biochim Biophys Acta Mol Cell Biol Lipids 2013; 1831:1555-65. [PMID: 23628473 PMCID: PMC4331670 DOI: 10.1016/j.bbalip.2013.04.012] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2013] [Revised: 03/28/2013] [Accepted: 04/17/2013] [Indexed: 12/31/2022]
Abstract
Obesity is associated with an increased risk for malignant lymphoma development. We used Bcr/Abl transformed B cells to determine the impact of aggressive lymphoma formation on systemic lipid mobilization and turnover. In wild-type mice, tumor size significantly correlated with depletion of white adipose tissues (WAT), resulting in increased serum free fatty acid (FFA) concentrations which promote B-cell proliferation in vitro. Moreover, B-cell tumor development induced hepatic lipid accumulation due to enhanced hepatic fatty acid (FA) uptake and impaired FA oxidation. Serum triglyceride, FFA, phospholipid and cholesterol levels were significantly elevated. Consistently, serum VLDL/LDL-cholesterol and apolipoprotein B levels were drastically increased. These findings suggest that B-cell tumors trigger systemic lipid mobilization from WAT to the liver and increase VLDL/LDL release from the liver to promote tumor growth. Further support for this concept stems from experiments where we used the peroxisome proliferator-activated receptor α (PPARα) agonist and lipid-lowering drug fenofibrate that significantly suppressed tumor growth independent of angiogenesis and inflammation. In addition to WAT depletion, fenofibrate further stimulated FFA uptake by the liver and restored hepatic FA oxidation capacity, thereby accelerating the clearance of lipids released from WAT. Furthermore, fenofibrate blocked hepatic lipid release induced by the tumors. In contrast, lipid utilization in the tumor tissue itself was not increased by fenofibrate which correlates with extremely low expression levels of PPARα in B-cells. Our data show that fenofibrate associated effects on hepatic lipid metabolism and deprivation of serum lipids are capable to suppress B-cell lymphoma growth which may direct novel treatment strategies. This article is part of a Special Issue entitled Lipid Metabolism in Cancer. B-cell lymphoma induced WAT loss and elevated serum FFA. B-cell lymphoma caused increased liver mass and FA uptake, impaired hepatic FA oxidation and enhanced hepatic lipid export. Fenofibrate reduced lymphoma induced elevation of serum FA by increasing hepatic FA uptake and oxidation. Fenofibrate blocks hepatic lipid export as triglyceride-rich VLDL or cholesterol-rich LDL in B-cell lymphoma bearing mice. Fenofibrate suppresses B-cell lymphoma in mice.
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Affiliation(s)
- Jianfeng Huang
- Institute of Pathology, Medical University of Graz, Graz, Austria
| | - Suman Kumar Das
- Institute of Pathology, Medical University of Graz, Graz, Austria
| | - Pooja Jha
- Institute of Pathology, Medical University of Graz, Graz, Austria
- Division of Gastroenterology and Hepatology, Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria
| | - Wael Al Zoughbi
- Institute of Pathology, Medical University of Graz, Graz, Austria
| | - Silvia Schauer
- Institute of Pathology, Medical University of Graz, Graz, Austria
| | - Thierry Claudel
- Division of Gastroenterology and Hepatology, Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria
| | - Veronika Sexl
- Institute of Pharmacology and Toxicology, Department for Biomedical Sciences, Veterinary University of Vienna, Vienna, Austria
| | - Paul Vesely
- The Scripps Research Institute, La Jolla, CA, USA
| | | | - Dagmar Kratky
- Institute of Molecular Biology and Biochemistry, Medical University of Graz, Graz, Austria
| | - Michael Trauner
- Division of Gastroenterology and Hepatology, Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria
| | - Gerald Hoefler
- Institute of Pathology, Medical University of Graz, Graz, Austria
- Corresponding author at: Institute of Pathology, Medical University of Graz, Auenbruggerplatz 25, 8036 Graz, Austria. Tel.: + 43 316 385 83654; fax: + 43 316 384329.
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Zhou J, Zhang S, Xue J, Avery J, Wu J, Lind SE, Ding WQ. Activation of peroxisome proliferator-activated receptor α (PPARα) suppresses hypoxia-inducible factor-1α (HIF-1α) signaling in cancer cells. J Biol Chem 2012; 287:35161-35169. [PMID: 22932900 DOI: 10.1074/jbc.m112.367367] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Activation of peroxisome proliferator-activated receptor α (PPARα) has been demonstrated to inhibit tumor growth and angiogenesis, yet the mechanisms behind these actions remain to be characterized. In this study, we examined the effects of PPARα activation on the hypoxia-inducible factor-1α (HIF-1α) signaling pathway in human breast (MCF-7) and ovarian (A2780) cancer cells under hypoxia. Incubation of cancer cells under 1% oxygen for 16 h significantly induced HIF-1α expression and activity as assayed by Western blotting and reporter gene analysis. Treatment of the cells with PPARα agonists, but not a PPARγ agonist, prior to hypoxia diminished hypoxia-induced HIF-1α expression and activity, and addition of a PPARα antagonist attenuated the suppression of HIF-1α signaling. Activation of PPARα attenuated hypoxia-induced HA-tagged HIF-1α protein expression without affecting the HA-tagged HIF-1α mutant protein level, indicating that PPARα activation promotes HIF-1α degradation in these cells. This was further confirmed using proteasome inhibitors, which reversed PPARα-mediated suppression of HIF-1α expression under hypoxia. Using the co-immunoprecipitation technique, we found that activation of PPARα enhances the binding of HIF-1α to von Hippel-Lindau tumor suppressor (pVHL), a protein known to mediate HIF-1α degradation through the ubiquitin-proteasome pathway. Following PPARα-mediated suppression of HIF-1α signaling, VEGF secretion from the cancer cells was significantly reduced, and tube formation by endothelial cells was dramatically impaired. Taken together, these findings demonstrate for the first time that activation of PPARα suppresses hypoxia-induced HIF-1α signaling in cancer cells, providing novel insight into the anticancer properties of PPARα agonists.
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Affiliation(s)
- Jundong Zhou
- Department of Radio-Oncology, Nanjing Medical University Affiliated Suzhou Hospital; Department of Pathology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma 73104
| | - Shuyu Zhang
- School of Radiation Medicine and Protection, Soochow University, Suzhou 205123, China; Department of Pathology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma 73104
| | - Jing Xue
- Department of Radio-Oncology, Nanjing Medical University Affiliated Suzhou Hospital; Department of Pathology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma 73104
| | - Jori Avery
- Department of Pathology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma 73104
| | - Jinchang Wu
- Department of Radio-Oncology, Nanjing Medical University Affiliated Suzhou Hospital
| | - Stuart E Lind
- Department of Pathology and Medicine, University of Colorado Denver, Denver, Colorado 80217
| | - Wei-Qun Ding
- Department of Pathology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma 73104.
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Medina DJ, Goodell L, Glod J, Gélinas C, Rabson AB, Strair RK. Mesenchymal stromal cells protect mantle cell lymphoma cells from spontaneous and drug-induced apoptosis through secretion of B-cell activating factor and activation of the canonical and non-canonical nuclear factor κB pathways. Haematologica 2012; 97:1255-63. [PMID: 22371181 DOI: 10.3324/haematol.2011.040659] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND There is increasing evidence that stromal cell interactions are required for the survival and drug resistance of several types of B-cell malignancies. There is relatively little information regarding the role of the bone marrow/lymphoid microenvironment in the pathogenesis of mantle cell lymphoma. In this study we investigated the interaction of primary mantle cell lymphoma cells with stromal cells in an ex vivo co-culture system. DESIGN AND METHODS The murine stromal cell line MS-5 and human bone marrow mesenchymal stromal cells were each co-cultured with primary mantle cell lymphoma cells for up to 7 months. Mantle cell lymphoma cultures alone or combined with human stromal cells were analyzed for cell number, cell migration, nuclear factor-κB activation and drug resistance. RESULTS Co-culture of mantle cell lymphoma cells and human stromal cells results in the survival and proliferation of primary mantle cell lymphoma cells for at least 7 months compared to mantle cell lymphoma cells cultured alone. Mantle cell lymphoma-human stromal cell interactions resulted in activation of the B-cell activating factor/nuclear factor-κB signaling axis resulting in reduced apoptosis, increased mantle cell lymphoma migration and increased drug resistance. CONCLUSIONS Direct mantle cell lymphoma-human stromal cell interactions support long-term expansion and increase the drug-resistance of primary mantle cell lymphoma cells. This is due in part to activation of the canonical and non-canonical nuclear factor κB pathways. We also demonstrated the ability of B-cell activating factor to augment CXCL12- and CXCL13-induced cell migration. Collectively, these findings demonstrate that human stromal cell-mantle cell lymphoma interactions play a pivotal role in the pathogenesis of mantle cell lymphoma and that analysis of mantle cell lymphoma-human stromal cell interactions may help in the identification of novel targets for therapeutic use.
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Affiliation(s)
- Daniel J Medina
- The Cancer Institute of New Jersey, University of Medicine and Dentistry of New Jersey-Robert Wood Johnson Medical School, New Brunswick, New Jersey 08901, USA.
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