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Zhu B, Zhu X, Borland MG, Ralph DH, Chiaro CR, Krausz KW, Ntambi JM, Glick AB, Patterson AD, Perdew GH, Gonzalez FJ, Peters JM. Activation of Peroxisome Proliferator-Activated Receptor-β/δ (PPARβ/δ) in Keratinocytes by Endogenous Fatty Acids. Biomolecules 2024; 14:606. [PMID: 38927010 PMCID: PMC11201440 DOI: 10.3390/biom14060606] [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: 04/16/2024] [Revised: 05/14/2024] [Accepted: 05/17/2024] [Indexed: 06/28/2024] Open
Abstract
Nuclear hormone receptors exist in dynamic equilibrium between transcriptionally active and inactive complexes dependent on interactions with ligands, proteins, and chromatin. The present studies examined the hypothesis that endogenous ligands activate peroxisome proliferator-activated receptor-β/δ (PPARβ/δ) in keratinocytes. The phorbol ester treatment or HRAS infection of primary keratinocytes increased fatty acids that were associated with enhanced PPARβ/δ activity. Fatty acids caused PPARβ/δ-dependent increases in chromatin occupancy and the expression of angiopoietin-like protein 4 (Angptl4) mRNA. Analyses demonstrated that stearoyl Co-A desaturase 1 (Scd1) mediates an increase in intracellular monounsaturated fatty acids in keratinocytes that act as PPARβ/δ ligands. The activation of PPARβ/δ with palmitoleic or oleic acid causes arrest at the G2/M phase of the cell cycle of HRAS-expressing keratinocytes that is not found in similarly treated HRAS-expressing Pparb/d-null keratinocytes. HRAS-expressing Scd1-null mouse keratinocytes exhibit enhanced cell proliferation, an effect that is mitigated by treatment with palmitoleic or oleic acid. Consistent with these findings, the ligand activation of PPARβ/δ with GW0742 or oleic acid prevented UVB-induced non-melanoma skin carcinogenesis, an effect that required PPARβ/δ. The results from these studies demonstrate that PPARβ/δ has endogenous roles in keratinocytes and can be activated by lipids found in diet and cellular components.
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Affiliation(s)
- Bokai Zhu
- Department of Veterinary and Biomedical Sciences, The Center for Molecular Toxicology and Carcinogenesis, The Pennsylvania State University, University Park, PA 16802, USA; (B.Z.); (X.Z.); (M.G.B.); (D.H.R.); (C.R.C.); (A.B.G.); (A.D.P.); (G.H.P.)
| | - Xiaoyang Zhu
- Department of Veterinary and Biomedical Sciences, The Center for Molecular Toxicology and Carcinogenesis, The Pennsylvania State University, University Park, PA 16802, USA; (B.Z.); (X.Z.); (M.G.B.); (D.H.R.); (C.R.C.); (A.B.G.); (A.D.P.); (G.H.P.)
| | - Michael G. Borland
- Department of Veterinary and Biomedical Sciences, The Center for Molecular Toxicology and Carcinogenesis, The Pennsylvania State University, University Park, PA 16802, USA; (B.Z.); (X.Z.); (M.G.B.); (D.H.R.); (C.R.C.); (A.B.G.); (A.D.P.); (G.H.P.)
- Department of Biochemistry, Microbiology and Molecular Biology, The Pennsylvania State University, University Park, PA 16802, USA
| | - Douglas H. Ralph
- Department of Veterinary and Biomedical Sciences, The Center for Molecular Toxicology and Carcinogenesis, The Pennsylvania State University, University Park, PA 16802, USA; (B.Z.); (X.Z.); (M.G.B.); (D.H.R.); (C.R.C.); (A.B.G.); (A.D.P.); (G.H.P.)
| | - Christopher R. Chiaro
- Department of Veterinary and Biomedical Sciences, The Center for Molecular Toxicology and Carcinogenesis, The Pennsylvania State University, University Park, PA 16802, USA; (B.Z.); (X.Z.); (M.G.B.); (D.H.R.); (C.R.C.); (A.B.G.); (A.D.P.); (G.H.P.)
- Department of Genetics, The Pennsylvania State University, University Park, PA 16802, USA
| | - Kristopher W. Krausz
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892, USA; (K.W.K.); (F.J.G.)
| | - James M. Ntambi
- Department of Nutritional Sciences, University of Wisconsin-Madison, Madison, WI 53706, USA;
- Department of Biochemistry, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Adam B. Glick
- Department of Veterinary and Biomedical Sciences, The Center for Molecular Toxicology and Carcinogenesis, The Pennsylvania State University, University Park, PA 16802, USA; (B.Z.); (X.Z.); (M.G.B.); (D.H.R.); (C.R.C.); (A.B.G.); (A.D.P.); (G.H.P.)
| | - Andrew D. Patterson
- Department of Veterinary and Biomedical Sciences, The Center for Molecular Toxicology and Carcinogenesis, The Pennsylvania State University, University Park, PA 16802, USA; (B.Z.); (X.Z.); (M.G.B.); (D.H.R.); (C.R.C.); (A.B.G.); (A.D.P.); (G.H.P.)
| | - Gary H. Perdew
- Department of Veterinary and Biomedical Sciences, The Center for Molecular Toxicology and Carcinogenesis, The Pennsylvania State University, University Park, PA 16802, USA; (B.Z.); (X.Z.); (M.G.B.); (D.H.R.); (C.R.C.); (A.B.G.); (A.D.P.); (G.H.P.)
- Department of Biochemistry, Microbiology and Molecular Biology, The Pennsylvania State University, University Park, PA 16802, USA
- Department of Genetics, The Pennsylvania State University, University Park, PA 16802, USA
| | - Frank J. Gonzalez
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892, USA; (K.W.K.); (F.J.G.)
| | - Jeffrey M. Peters
- Department of Veterinary and Biomedical Sciences, The Center for Molecular Toxicology and Carcinogenesis, The Pennsylvania State University, University Park, PA 16802, USA; (B.Z.); (X.Z.); (M.G.B.); (D.H.R.); (C.R.C.); (A.B.G.); (A.D.P.); (G.H.P.)
- Department of Biochemistry, Microbiology and Molecular Biology, The Pennsylvania State University, University Park, PA 16802, USA
- Department of Genetics, The Pennsylvania State University, University Park, PA 16802, USA
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Hogan KA, Zeidler JD, Beasley HK, Alsaadi AI, Alshaheeb AA, Chang YC, Tian H, Hinton AO, McReynolds MR. Using mass spectrometry imaging to visualize age-related subcellular disruption. Front Mol Biosci 2023; 10:906606. [PMID: 36968274 PMCID: PMC10032471 DOI: 10.3389/fmolb.2023.906606] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 01/24/2023] [Indexed: 03/10/2023] Open
Abstract
Metabolic homeostasis balances the production and consumption of energetic molecules to maintain active, healthy cells. Cellular stress, which disrupts metabolism and leads to the loss of cellular homeostasis, is important in age-related diseases. We focus here on the role of organelle dysfunction in age-related diseases, including the roles of energy deficiencies, mitochondrial dysfunction, endoplasmic reticulum (ER) stress, changes in metabolic flux in aging (e.g., Ca2+ and nicotinamide adenine dinucleotide), and alterations in the endoplasmic reticulum-mitochondria contact sites that regulate the trafficking of metabolites. Tools for single-cell resolution of metabolite pools and metabolic flux in animal models of aging and age-related diseases are urgently needed. High-resolution mass spectrometry imaging (MSI) provides a revolutionary approach for capturing the metabolic states of individual cells and cellular interactions without the dissociation of tissues. mass spectrometry imaging can be a powerful tool to elucidate the role of stress-induced cellular dysfunction in aging.
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Affiliation(s)
- Kelly A. Hogan
- Department of Biochemistry and Molecular Biology, Pennsylvania State University, University Park, PA, United States
- Signal Transduction and Molecular Nutrition Laboratory, Kogod Aging Center, Department of Anesthesiology and Perioperative Medicine, Mayo Clinic College of Medicine, Rochester, MN, United States
- Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA, United States
| | - Julianna D. Zeidler
- Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Heather K. Beasley
- Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, TN, United States
| | - Abrar I. Alsaadi
- Department of Biochemistry and Molecular Biology, Pennsylvania State University, University Park, PA, United States
| | - Abdulkareem A. Alshaheeb
- Department of Biochemistry and Molecular Biology, Pennsylvania State University, University Park, PA, United States
| | - Yi-Chin Chang
- Department of Chemistry, Pennsylvania State University, University Park, PA, United States
| | - Hua Tian
- Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA, United States
- Department of Chemistry, Pennsylvania State University, University Park, PA, United States
- *Correspondence: Hua Tian, ; Antentor O. Hinton Jr, ; Melanie R. McReynolds,
| | - Antentor O. Hinton
- Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, TN, United States
- *Correspondence: Hua Tian, ; Antentor O. Hinton Jr, ; Melanie R. McReynolds,
| | - Melanie R. McReynolds
- Department of Biochemistry and Molecular Biology, Pennsylvania State University, University Park, PA, United States
- Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA, United States
- *Correspondence: Hua Tian, ; Antentor O. Hinton Jr, ; Melanie R. McReynolds,
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Yang H, Zhang K, Guo Y, Guo X, Hou K, Hou J, Luo Y, Liu J, Jia S. Gain-of-Function p53N236S Mutation Drives the Bypassing of HRas V12-Induced Cellular Senescence via PGC-1α. Int J Mol Sci 2023; 24:ijms24043790. [PMID: 36835200 PMCID: PMC9960896 DOI: 10.3390/ijms24043790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 02/07/2023] [Accepted: 02/08/2023] [Indexed: 02/16/2023] Open
Abstract
One of the key steps in tumorigenic transformation is immortalization in which cells bypass cancer-initiating barriers such as senescence. Senescence can be triggered by either telomere erosion or oncogenic stress (oncogene-induced senescence, OIS) and undergo p53- or Rb-dependent cell cycle arrest. The tumor suppressor p53 is mutated in 50% of human cancers. In this study, we generated p53N236S (p53S) mutant knock-in mice and observed that p53S heterozygous mouse embryonic fibroblasts (p53S/+) escaped HRasV12-induced senescence after subculture in vitro and formed tumors after subcutaneous injection into severe combined immune deficiency (SCID) mice. We found that p53S increased the level and nuclear translocation of PGC-1α in late-stage p53S/++Ras cells (LS cells, which bypassed the OIS). The increase in PGC-1α promoted the biosynthesis and function of mitochondria in LS cells by inhibiting senescence-associated reactive oxygen species (ROS) and ROS-induced autophagy. In addition, p53S regulated the interaction between PGC-1α and PPARγ and promoted lipid synthesis, which may indicate an auxiliary pathway for facilitating cell escape from aging. Our results illuminate the mechanisms underlying p53S mutant-regulated senescence bypass and demonstrate the role played by PGC-1α in this process.
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[Research Progress on the Pathogenesis of Lung Cancer Associated with
Idiopathic Pulmonary Fibrosis]. ZHONGGUO FEI AI ZA ZHI = CHINESE JOURNAL OF LUNG CANCER 2022; 25:811-818. [PMID: 36419395 PMCID: PMC9720683 DOI: 10.3779/j.issn.1009-3419.2022.101.51] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Idiopathic pulmonary fibrosis (IPF) is the most common interstitial lung disease (ILD) of unknown causes, which is characterized by pulmonary fibrosis. The median survival period after diagnosis is about 2-4 years. In recent years, the incidence rate of lung cancer associated with IPF (IPF-LC) is increasing, and the prognosis is worse than that of IPF alone. Pulmonary fibrosis may be closely associated with the occurrence and development of lung cancer. Although the pathogenesis of IPF-LC is still unclear, the current research shows that there are similarities between the pathogenesis of these two diseases at molecular and cellular levels. At present, the research on the cellular and molecular mechanism of lung cancer related to pulmonary fibrosis has become the focus of researchers' attention. This article reviews the related literature, focusing on the latest status of the cellular and molecular mechanisms and treatment of IPF-LC, hoping to help clinicians understand IPF-LC.
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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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Roger L, Tomas F, Gire V. Mechanisms and Regulation of Cellular Senescence. Int J Mol Sci 2021; 22:ijms222313173. [PMID: 34884978 PMCID: PMC8658264 DOI: 10.3390/ijms222313173] [Citation(s) in RCA: 120] [Impact Index Per Article: 40.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 11/25/2021] [Accepted: 12/02/2021] [Indexed: 12/23/2022] Open
Abstract
Cellular senescence entails a state of an essentially irreversible proliferative arrest in which cells remain metabolically active and secrete a range of pro-inflammatory and proteolytic factors as part of the senescence-associated secretory phenotype. There are different types of senescent cells, and senescence can be induced in response to many DNA damage signals. Senescent cells accumulate in different tissues and organs where they have distinct physiological and pathological functions. Despite this diversity, all senescent cells must be able to survive in a nondividing state while protecting themselves from positive feedback loops linked to the constant activation of the DNA damage response. This capacity requires changes in core cellular programs. Understanding how different cell types can undergo extensive changes in their transcriptional programs, metabolism, heterochromatin patterns, and cellular structures to induce a common cellular state is crucial to preventing cancer development/progression and to improving health during aging. In this review, we discuss how senescent cells continuously evolve after their initial proliferative arrest and highlight the unifying features that define the senescent state.
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Affiliation(s)
- Lauréline Roger
- Structure and Instability of Genomes Laboratory, Muséum National d’Histoire Naturelle (MNHN), CNRS-UMR 7196/INSERM U1154, 43 Rue Cuvier, 75005 Paris, France;
| | - Fanny Tomas
- Centre de Recherche en Biologie cellulaire de Montpellier (CRBM), Université de Montpellier, CNRS UMR 5237, 1919 Route de Mende, 34293 Montpellier, France;
| | - Véronique Gire
- Centre de Recherche en Biologie cellulaire de Montpellier (CRBM), Université de Montpellier, CNRS UMR 5237, 1919 Route de Mende, 34293 Montpellier, France;
- Correspondence: ; Tel.: +33-(0)-434359513; Fax: +33-(0)-434359410
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Ei ZZ, Choochuay K, Tubsuwan A, Pinkaew D, Suksomtip M, Vinayanuwattikun C, Chanvorachote P, Chunhacha P. GRP78/BiP determines senescence evasion cell fate after cisplatin-based chemotherapy. Sci Rep 2021; 11:22448. [PMID: 34789798 PMCID: PMC8599848 DOI: 10.1038/s41598-021-01540-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 10/27/2021] [Indexed: 12/29/2022] Open
Abstract
Cisplatin (CDDP) induces senescence characterized by senescence-associated secretory phenotypes (SASP) and the unfolded protein response (UPR). In this study, we investigated the proteins related to the UPR during the senescence cell fate. Strikingly, we found that one of the critical ER-resident proteins, GRP78/BiP, was significantly altered. Here we show that GRP78 levels differentially expressed depending on non-small lung cancer subtypes. GRP78 indeed regulates the evasion of senescence in adenocarcinoma A549 cells, in which the increased GRP78 levels enable them to re-proliferate after CDDP removal. Conversely, GRP78 is downregulated in the senescence H460 cells, making them lacking senescence evasion capability. We observed that the translational regulation critically contributed to the GRP78 protein levels in CDDP-induces senescence. Furthermore, the increased GRP78 level during senescence confers resistance to senolytic drug, Bortezomib, as observed by a twofold increase in IC50 in A549 senescence cells compared to the wild-type. This observation is also consistent in the cells that have undergone genetic manipulation by transfection with pcDNA3.1(+)-GRP78/BiP plasmids and pSpCas9(BB)-2A-Puro containing guide RNA sequence targeting GRP78 exon 3 to induce the overexpression and downregulation of GRP78 in H460 cells, respectively. Our findings reveal a unique role of GRP78 on the senescence evasion cell fate and senolytic drug resistance after cisplatin-based chemotherapy.
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Affiliation(s)
- Zin Zin Ei
- Department of Biochemistry and Microbiology, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, Thailand
| | - Kanuengnit Choochuay
- Drugs and Cosmetic Excellence Center, Walailak University, Nakhon Si Thammarat, Thailand.,School of Pharmacy, Walailak University, Nakhon Si Thammarat, Thailand
| | - Alisa Tubsuwan
- Thalassemia Research Centre, Institute of Molecular Biosciences, Mahidol University, Nakornpathom, Thailand
| | - Decha Pinkaew
- Division of Cardiology, Department of Medicine, University of Washington, Seattle, WA, 98109, USA
| | - Maneewan Suksomtip
- Department of Biochemistry and Microbiology, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, Thailand
| | - Chanida Vinayanuwattikun
- Division of Medical Oncology, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Pithi Chanvorachote
- Department of Pharmacology and Physiology, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, Thailand
| | - Preedakorn Chunhacha
- Department of Biochemistry and Microbiology, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, Thailand. .,Preclinical Toxicity and Efficacy Assessment of Medicines and Chemicals Research Clusters, Chulalongkorn University, Bangkok, Thailand.
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Luo H, Lan C, Fan C, Gong X, Chen C, Yu C, Wang J, Luo X, Hu C, Jose PA, Xu Z, Zeng C. Down-regulation of AMPK/PPARδ signalling promotes endoplasmic reticulum stress-induced endothelial dysfunction in adult rat offspring exposed to maternal diabetes. Cardiovasc Res 2021; 118:2304-2316. [PMID: 34415333 PMCID: PMC9890455 DOI: 10.1093/cvr/cvab280] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 01/29/2020] [Accepted: 08/18/2021] [Indexed: 02/07/2023] Open
Abstract
AIMS Exposure to maternal diabetes is associated with increased prevalence of hypertension in the offspring. The mechanisms underlying the prenatal programming of hypertension remain unclear. Because endoplasmic reticulum (ER) stress plays a key role in vascular endothelial dysfunction in hypertension, we investigated whether aberrant ER stress causes endothelial dysfunction and high blood pressure in the offspring of dams with diabetes. METHODS AND RESULTS Pregnant Sprague-Dawley rats were intraperitoneally injected with streptozotocin (35 mg/kg) or citrate buffer at Day 0 of gestation. Compared with control mother offspring (CMO), the diabetic mother offspring (DMO) had higher blood pressure and impaired endothelium-dependent relaxation in mesenteric arteries, accompanied by decreased AMPK phosphorylation and PPARδ expression, increased ER stress markers, and reactive oxygen species (ROS) levels. The inhibition of ER stress reversed these aberrant changes in DMO. Ex vivo treatment of mesenteric arteries with an AMPK agonist (A769662) or a PPARδ agonist (GW1516) improved the impaired EDR in DMO and reversed the tunicamycin-induced ER stress, ROS production, and EDR impairment in mesenteric arteries from CMO. The effects of A769662 were abolished by co-treatment with GSK0660 (PPARδ antagonist), whereas the effects of GW1516 were unaffected by Compound C (AMPK inhibitor). CONCLUSION These results suggest an abnormal foetal programming of vascular endothelial function in offspring of rats with maternal diabetes that is associated with increased ER stress, which can be ascribed to down-regulation of AMPK/PPARδ signalling cascade.
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Affiliation(s)
| | | | | | - Xue Gong
- Department of Cardiology, Daping Hospital, The Third Military Medical University, 10 Changjiang Branch Rd, Chongqing 400042, P.R. China,Chongqing Key Laboratory for Hypertension Research, Chongqing Cardiovascular Clinical Research Center, Chongqing Institute of Cardiology, Chongqing, China
| | - Caiyu Chen
- Department of Cardiology, Daping Hospital, The Third Military Medical University, 10 Changjiang Branch Rd, Chongqing 400042, P.R. China,Chongqing Key Laboratory for Hypertension Research, Chongqing Cardiovascular Clinical Research Center, Chongqing Institute of Cardiology, Chongqing, China
| | - Cheng Yu
- Chongqing Key Laboratory for Hypertension Research, Chongqing Cardiovascular Clinical Research Center, Chongqing Institute of Cardiology, Chongqing, China,Department of Cardiology, Fujian Heart Center, Provincial Institute of Coronary Disease, Fujian Medical University Union Hospital, Fuzhou, Fujian, China
| | - Jialiang Wang
- Department of Cardiology, Daping Hospital, The Third Military Medical University, 10 Changjiang Branch Rd, Chongqing 400042, P.R. China,Chongqing Key Laboratory for Hypertension Research, Chongqing Cardiovascular Clinical Research Center, Chongqing Institute of Cardiology, Chongqing, China
| | - Xiaoli Luo
- Department of Cardiology, Daping Hospital, The Third Military Medical University, 10 Changjiang Branch Rd, Chongqing 400042, P.R. China,Chongqing Key Laboratory for Hypertension Research, Chongqing Cardiovascular Clinical Research Center, Chongqing Institute of Cardiology, Chongqing, China
| | - Cuimei Hu
- Department of Cardiology, Daping Hospital, The Third Military Medical University, 10 Changjiang Branch Rd, Chongqing 400042, P.R. China,Chongqing Key Laboratory for Hypertension Research, Chongqing Cardiovascular Clinical Research Center, Chongqing Institute of Cardiology, Chongqing, China
| | - Pedro A Jose
- Division of Renal Diseases & Hypertension, Department of Medicine and Pharmacology, The George Washington University School of Medicine and Health Sciences, Washington, DC, USA,Department of Physiology, The George Washington University School of Medicine and Health Sciences, Washington, DC, USA
| | - Zaicheng Xu
- Corresponding author. Tel: +86 23 68757801; fax: +86 23 68757801, E-mail: (C.Z.); (Z.X.)
| | - Chunyu Zeng
- Corresponding author. Tel: +86 23 68757801; fax: +86 23 68757801, E-mail: (C.Z.); (Z.X.)
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Blunder S, Pavel P, Minzaghi D, Dubrac S. PPARdelta in Affected Atopic Dermatitis and Psoriasis: A Possible Role in Metabolic Reprograming. Int J Mol Sci 2021; 22:7354. [PMID: 34298981 PMCID: PMC8303290 DOI: 10.3390/ijms22147354] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 07/06/2021] [Accepted: 07/07/2021] [Indexed: 12/16/2022] Open
Abstract
Peroxisome proliferator-activated receptors (PPARs) are nuclear hormone receptors expressed in the skin. Three PPAR isotypes, α (NRC1C1), β or δ (NRC1C2) and γ (NRC1C3), have been identified. After activation through ligand binding, PPARs heterodimerize with the 9-cis-retinoic acid receptor (RXR), another nuclear hormone receptor, to bind to specific PPAR-responsive elements in regulatory regions of target genes mainly involved in organogenesis, cell proliferation, cell differentiation, inflammation and metabolism of lipids or carbohydrates. Endogenous PPAR ligands are fatty acids and fatty acid metabolites. In past years, much emphasis has been given to PPARα and γ in skin diseases. PPARβ/δ is the least studied PPAR family member in the skin despite its key role in several important pathways regulating inflammation, keratinocyte proliferation and differentiation, metabolism and the oxidative stress response. This review focuses on the role of PPARβ/δ in keratinocytes and its involvement in psoriasis and atopic dermatitis. Moreover, the relevance of targeting PPARβ/δ to alleviate skin inflammation is discussed.
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Affiliation(s)
| | | | | | - Sandrine Dubrac
- Epidermal Biology Laboratory, Department of Dermatology, Venereology and Allergology, Medical University of Innsbruck, Anichstraße 35, 6020 Innsbruck, Austria; (S.B.); (P.P.); (D.M.)
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Pluquet O, Abbadie C. Cellular senescence and tumor promotion: Role of the Unfolded Protein Response. Adv Cancer Res 2021; 150:285-334. [PMID: 33858599 DOI: 10.1016/bs.acr.2021.01.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Senescence is a cellular state which can be viewed as a stress response phenotype implicated in various physiological and pathological processes, including cancer. Therefore, it is of fundamental importance to understand why and how a cell acquires and maintains a senescent phenotype. Direct evidence has pointed to the homeostasis of the endoplasmic reticulum whose control appears strikingly affected during senescence. The endoplasmic reticulum is one of the sensing organelles that transduce signals between different pathways in order to adapt a functional proteome upon intrinsic or extrinsic challenges. One of these signaling pathways is the Unfolded Protein Response (UPR), which has been shown to be activated during senescence. Its exact contribution to senescence onset, maintenance, and escape, however, is still poorly understood. In this article, we review the mechanisms through which the UPR contributes to the appearance and maintenance of characteristic senescent features. We also discuss whether the perturbation of the endoplasmic reticulum proteostasis or accumulation of misfolded proteins could be possible causes of senescence, and-as a consequence-to what extent the UPR components could be considered as therapeutic targets allowing for the elimination of senescent cells or altering their secretome to prevent neoplastic transformation.
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Affiliation(s)
- Olivier Pluquet
- Univ Lille, CNRS, Inserm, CHU Lille, UMR9020-U1277-CANTHER-Cancer Heterogeneity Plasticity and Resistance to Therapies, Lille, France.
| | - Corinne Abbadie
- Univ Lille, CNRS, Inserm, CHU Lille, UMR9020-U1277-CANTHER-Cancer Heterogeneity Plasticity and Resistance to Therapies, Lille, France
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Legendre M, Butt A, Borie R, Debray MP, Bouvry D, Filhol-Blin E, Desroziers T, Nau V, Copin B, Dastot-Le Moal F, Héry M, Duquesnoy P, Allou N, Bergeron A, Bermudez J, Cazes A, Chene AL, Cottin V, Crestani B, Dalphin JC, Dombret C, Doray B, Dupin C, Giraud V, Gondouin A, Gouya L, Israël-Biet D, Kannengiesser C, Le Borgne A, Leroy S, Longchampt E, Lorillon G, Nunes H, Picard C, Reynaud-Gaubert M, Traclet J, de Vuyst P, Coulomb L'Hermine A, Clement A, Amselem S, Nathan N. Functional assessment and phenotypic heterogeneity of SFTPA1 and SFTPA2 mutations in interstitial lung diseases and lung cancer. Eur Respir J 2020; 56:13993003.02806-2020. [PMID: 32855221 DOI: 10.1183/13993003.02806-2020] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Accepted: 07/22/2020] [Indexed: 12/11/2022]
Abstract
INTRODUCTION Interstitial lung diseases (ILDs) can be caused by mutations in the SFTPA1 and SFTPA2 genes, which encode the surfactant protein (SP) complex SP-A. Only 11 SFTPA1 or SFTPA2 mutations have so far been reported worldwide, of which five have been functionally assessed. In the framework of ILD molecular diagnosis, we identified 14 independent patients with pathogenic SFTPA1 or SFTPA2 mutations. The present study aimed to functionally assess the 11 different mutations identified and to accurately describe the disease phenotype of the patients and their affected relatives. METHODS The consequences of the 11 SFTPA1 or SFTPA2 mutations were analysed both in vitro, by studying the production and secretion of the corresponding mutated proteins and ex vivo, by analysing SP-A expression in lung tissue samples. The associated disease phenotypes were documented. RESULTS For the 11 identified mutations, protein production was preserved but secretion was abolished. The expression pattern of lung SP-A available in six patients was altered and the family history reported ILD and/or lung adenocarcinoma in 13 out of 14 families (93%). Among the 28 SFTPA1 or SFTPA2 mutation carriers, the mean age at ILD onset was 45 years (range 0.6-65 years) and 48% underwent lung transplantation (mean age 51 years). Seven carriers were asymptomatic. DISCUSSION This study, which expands the molecular and clinical spectrum of SP-A disorders, shows that pathogenic SFTPA1 or SFTPA2 mutations share similar consequences for SP-A secretion in cell models and in lung tissue immunostaining, whereas they are associated with a highly variable phenotypic expression of disease, ranging from severe forms requiring lung transplantation to incomplete penetrance.
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Affiliation(s)
- Marie Legendre
- Sorbonne Université, Inserm Childhood Genetic Disorders, Armand Trousseau Hospital, Paris, France.,Dept of Genetics, Armand Trousseau Hospital, Sorbonne University, Assistance Publique Hôpitaux de Paris (APHP), Paris, France.,Both authors contributed equally
| | - Afifaa Butt
- Sorbonne Université, Inserm Childhood Genetic Disorders, Armand Trousseau Hospital, Paris, France.,Both authors contributed equally
| | - Raphaël Borie
- Pulmonology Dept A, Bichat Hospital, Assistance Publique Hôpitaux de Paris (APHP), Université de Paris, Paris, France
| | - Marie-Pierre Debray
- Radiology Dept, Bichat Hospital, Assistance Publique Hôpitaux de Paris (APHP), Université de Paris, Paris, France
| | - Diane Bouvry
- Pulmonology Dept, EA 2363, Avicenne Hospital, Assistance Publique Hôpitaux de Paris (APHP), Paris 13 University, COMUE Sorbonne Paris Cité, Bobigny, France
| | - Emilie Filhol-Blin
- Dept of Genetics, Armand Trousseau Hospital, Sorbonne University, Assistance Publique Hôpitaux de Paris (APHP), Paris, France
| | - Tifenn Desroziers
- Sorbonne Université, Inserm Childhood Genetic Disorders, Armand Trousseau Hospital, Paris, France
| | - Valérie Nau
- Dept of Genetics, Armand Trousseau Hospital, Sorbonne University, Assistance Publique Hôpitaux de Paris (APHP), Paris, France
| | - Bruno Copin
- Dept of Genetics, Armand Trousseau Hospital, Sorbonne University, Assistance Publique Hôpitaux de Paris (APHP), Paris, France
| | - Florence Dastot-Le Moal
- Dept of Genetics, Armand Trousseau Hospital, Sorbonne University, Assistance Publique Hôpitaux de Paris (APHP), Paris, France
| | - Mélanie Héry
- Sorbonne Université, Inserm Childhood Genetic Disorders, Armand Trousseau Hospital, Paris, France
| | - Philippe Duquesnoy
- Sorbonne Université, Inserm Childhood Genetic Disorders, Armand Trousseau Hospital, Paris, France
| | - Nathalie Allou
- Pulmonology Dept, Felix Guyon Hospital, Saint Denis de La Reunion, France
| | - Anne Bergeron
- Pulmonology Dept, Saint Louis Hospital, Université de Paris, Paris, France
| | - Julien Bermudez
- Pulmonology Dept and Lung Transplant Team, North Hospital - Assistance Publique Hôpitaux de Marseille (APHM), Marseille - MEPHI, IHU Méditerranée Infection, Aix-Marseille University, Marseille, France
| | - Aurélie Cazes
- Pathology Dept, Bichat Hospital, Assistance Publique Hôpitaux de Paris (APHP), Université de Paris, Paris, France
| | | | - Vincent Cottin
- Pulmonology Dept and Coordinating Reference Center for Rare Pulmonary Diseases OrphaLung, Hospices Civils de Lyon, Claude Bernard University Lyon 1, Lyon, France
| | - Bruno Crestani
- Radiology Dept, Bichat Hospital, Assistance Publique Hôpitaux de Paris (APHP), Université de Paris, Paris, France
| | - Jean-Charles Dalphin
- Pulmonology Dept, UMR-CNRS Chrono-Environnement 6249, CNRS and CHU, Besançon, France
| | - Christine Dombret
- Radiology Dept, Bichat Hospital, Assistance Publique Hôpitaux de Paris (APHP), Université de Paris, Paris, France
| | - Bérénice Doray
- Genetic Dept, Felix Guyon Hospital, Saint Denis de La Reunion, France
| | - Clairelyne Dupin
- Pulmonology Dept, Saint Louis Hospital, Université de Paris, Paris, France
| | - Violaine Giraud
- Pulmonology Dept, Ambroise Paré Hospital, Assistance Publique Hôpitaux de Paris (APHP), Boulogne Billancourt, France
| | - Anne Gondouin
- Pulmonology Dept, UMR-CNRS Chrono-Environnement 6249, CNRS and CHU, Besançon, France
| | - Laurent Gouya
- Pulmonology Dept, Saint Louis Hospital, Université de Paris, Paris, France
| | - Dominique Israël-Biet
- Pulmonology Dept, Georges Pompidou European Hospital, Assistance Publique Hôpitaux de Paris (APHP), Université de Paris, Paris, France
| | - Caroline Kannengiesser
- Genetic Dept, Bichat Hospital, Assistance Publique Hôpitaux de Paris (APHP), Université de Paris, Paris, France
| | | | - Sylvie Leroy
- Pulmonology Dept, Pasteur Hospital, Nice, France
| | | | - Gwenaël Lorillon
- Pulmonology Dept, Saint Louis Hospital, Université de Paris, Paris, France
| | - Hilario Nunes
- Pulmonology Dept, EA 2363, Avicenne Hospital, Assistance Publique Hôpitaux de Paris (APHP), Paris 13 University, COMUE Sorbonne Paris Cité, Bobigny, France
| | | | - Martine Reynaud-Gaubert
- Pulmonology Dept and Lung Transplant Team, North Hospital - Assistance Publique Hôpitaux de Marseille (APHM), Marseille - MEPHI, IHU Méditerranée Infection, Aix-Marseille University, Marseille, France
| | - Julie Traclet
- Pulmonology Dept and Coordinating Reference Center for Rare Pulmonary Diseases OrphaLung, Hospices Civils de Lyon, Claude Bernard University Lyon 1, Lyon, France
| | - Paul de Vuyst
- Pulmonology Dept, Erasme Hospital, Brussels, Belgium
| | | | - Annick Clement
- Sorbonne Université, Inserm Childhood Genetic Disorders, Armand Trousseau Hospital, Paris, France.,Pediatric Pulmonology Dept and Reference Center for Rare Lung Diseases RespiRare, Armand Trousseau Hospital, Paris, France
| | - Serge Amselem
- Sorbonne Université, Inserm Childhood Genetic Disorders, Armand Trousseau Hospital, Paris, France.,Dept of Genetics, Armand Trousseau Hospital, Sorbonne University, Assistance Publique Hôpitaux de Paris (APHP), Paris, France.,Both authors contributed equally
| | - Nadia Nathan
- Sorbonne Université, Inserm Childhood Genetic Disorders, Armand Trousseau Hospital, Paris, France.,Pediatric Pulmonology Dept and Reference Center for Rare Lung Diseases RespiRare, Armand Trousseau Hospital, Paris, France.,Both authors contributed equally
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12
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The Emerging Role of PPAR Beta/Delta in Tumor Angiogenesis. PPAR Res 2020; 2020:3608315. [PMID: 32855630 PMCID: PMC7443046 DOI: 10.1155/2020/3608315] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 07/24/2020] [Indexed: 12/31/2022] Open
Abstract
PPARs are ligand-activated transcriptional factors that belong to the nuclear receptor superfamily. Among them, PPAR alpha and PPAR gamma are prone to exert an antiangiogenic effect, whereas PPAR beta/delta has an opposite effect in physiological and pathological conditions. Angiogenesis has been known as a hallmark of cancer, and our recent works also demonstrate that vascular-specific PPAR beta/delta overexpression promotes tumor angiogenesis and progression in vivo. In this review, we will mainly focus on the role of PPAR beta/delta in tumor angiogenesis linked to the tumor microenvironment to further facilitate tumor progression and metastasis. Moreover, the crosstalk between PPAR beta/delta and its downstream key signal molecules involved in tumor angiogenesis will also be discussed, and the network of interplay between them will further be established in the review.
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13
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McCarthy N, Dolgikh N, Logue S, Patterson JB, Zeng Q, Gorman AM, Samali A, Fulda S. The IRE1 and PERK arms of the unfolded protein response promote survival of rhabdomyosarcoma cells. Cancer Lett 2020; 490:76-88. [PMID: 32679165 DOI: 10.1016/j.canlet.2020.07.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 06/25/2020] [Accepted: 07/08/2020] [Indexed: 02/07/2023]
Abstract
Rhabdomyosarcoma (RMS), the most common soft-tissue sarcoma, is associated with a low 5-year survival and harsh treatment side effects, underscoring an urgent need for therapy. The unfolded protein response (UPR) is activated in response to endoplasmic reticulum (ER) stress, where three ER stress receptors, IRE1, PERK and ATF6, aim to restore cellular homeostasis. The UPR is pro-tumourigenic in many cancers. In this study, we investigate basal UPR activity in RMS. Basal activation of IRE1 and PERK was observed in RMS cell lines, which was diminished upon addition of the IRE1 RNase inhibitor, MKC8866, or PERK inhibitor, AMGEN44. UPR inhibition caused a reduction in cell viability, cell proliferation and inhibition of long-term colony formation in both subtypes of RMS. Alveolar RMS (ARMS) subtype was highly sensitive to IRE1 inhibition, whereas embryonal RMS (ERMS) subtypes responded more markedly to PERK inhibition. Further investigation revealed a robust activation of senescence upon UPR inhibition. For the first time, the UPR is implicated in RMS biology and phenotype, and inhibition of UPR signalling reduces cell growth, suggesting that the UPR may be a promising target in RMS.
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Affiliation(s)
- Nicole McCarthy
- Institute for Experimental Cancer Research in Pediatrics, Goethe-University Frankfurt, Komturstr. 3a, 60528, Frankfurt, Germany
| | - Nadezda Dolgikh
- Institute for Experimental Cancer Research in Pediatrics, Goethe-University Frankfurt, Komturstr. 3a, 60528, Frankfurt, Germany
| | - Susan Logue
- Rady Faculty of Health Sciences, University of Manitoba, Canada
| | | | - Qinping Zeng
- Fosun Orinove PharmaTech Inc., Suzhou, Jiangsu, China
| | - Adrienne M Gorman
- Apoptosis Research Centre, National University of Ireland Galway, Galway, Ireland; School of Natural Sciences, National University of Ireland Galway, Galway, Ireland
| | - Afshin Samali
- Apoptosis Research Centre, National University of Ireland Galway, Galway, Ireland; School of Natural Sciences, National University of Ireland Galway, Galway, Ireland
| | - Simone Fulda
- Institute for Experimental Cancer Research in Pediatrics, Goethe-University Frankfurt, Komturstr. 3a, 60528, Frankfurt, Germany; German Cancer Consortium (DKTK), Partner Site Frankfurt, Germany; German Cancer Research Center (DKFZ), Heidelberg, Germany.
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14
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Wagner N, Wagner KD. PPAR Beta/Delta and the Hallmarks of Cancer. Cells 2020; 9:cells9051133. [PMID: 32375405 PMCID: PMC7291220 DOI: 10.3390/cells9051133] [Citation(s) in RCA: 70] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 04/30/2020] [Accepted: 05/01/2020] [Indexed: 12/17/2022] Open
Abstract
Peroxisome proliferator-activated receptors (PPARs) belong to the nuclear hormone receptor family. Three different isoforms, PPAR alpha, PPAR beta/delta and PPAR gamma have been identified. They all form heterodimers with retinoic X receptors to activate or repress downstream target genes dependent on the presence/absence of ligands and coactivators or corepressors. PPARs differ in their tissue expression profile, ligands and specific agonists and antagonists. PPARs attract attention as potential therapeutic targets for a variety of diseases. PPAR alpha and gamma agonists are in clinical use for the treatment of dyslipidemias and diabetes. For both receptors, several clinical trials as potential therapeutic targets for cancer are ongoing. In contrast, PPAR beta/delta has been suggested as a therapeutic target for metabolic syndrome. However, potential risks in the settings of cancer are less clear. A variety of studies have investigated PPAR beta/delta expression or activation/inhibition in different cancer cell models in vitro, but the relevance for cancer growth in vivo is less well documented and controversial. In this review, we summarize critically the knowledge of PPAR beta/delta functions for the different hallmarks of cancer biological capabilities, which interplay to determine cancer growth.
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15
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Chi X, Jiang Y, Chen Y, Yang F, Cai Q, Pan F, Lv L, Zhang X. Suppression of microRNA‑27a protects against liver ischemia/reperfusion injury by targeting PPARγ and inhibiting endoplasmic reticulum stress. Mol Med Rep 2019; 20:4003-4012. [PMID: 31485635 DOI: 10.3892/mmr.2019.10645] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Accepted: 06/13/2019] [Indexed: 11/06/2022] Open
Abstract
Liver ischemia‑reperfusion (I/R) injury is an important clinical issue related to liver transplantation. Recent studies suggest that microRNAs are implicated in various biological and pathological processes, including liver I/R injury. This study aimed to investigate the role and potential mechanism of miR‑27a during liver I/R injury. A liver I/R model was induced via 60 min of ischemia and reperfusion for 6 h in rats. Cells were transfected with miR‑27a mimics or the miR‑27a inhibitor to examine the effect of miR‑27a on liver I/R. Apoptotic cells were detected by flow cytometry and TUNEL staining. The expression of miR‑27a was measured by real‑time PCR. The expression of peroxisome proliferator‑activated receptor γ (PPARγ); gastrin‑releasing peptide 78 (GRP78) and C/EBP homologous protein (CHOP) were detected by western blot analysis. The results showed that miR‑27a was significantly upregulated during I/R injury in vivo and in vitro. In addition, miR‑27a inhibitors attenuated hypoxia/reoxygenation (H/R)‑induced oxidative stress, endoplasmic reticulum stress (ERS) and apoptosis in AML12 cells. By contrast, miR‑27a mimics promoted hypoxia/reoxygenation‑induced ERS, and apoptosis. Furthermore, PPARγ was identified as a target gene of miR‑27a using bioinformatic analysis and a dual‑luciferase reporter assay. Knockdown of PPARγ significantly abrogated the inhibitory effect of miR‑27a inhibitors on the ERS pathway. Moreover, the miR‑27a antagomir attenuated liver I/R injury in rats, a finding manifested by reduced ALT/AST, hepatocyte apoptosis, oxidative stress and inhibition of the ERS pathway. Taken together, these findings demonstrate that suppression of miR‑27a protects against liver I/R injury by targeting PPARγ and by inhibiting the ERS pathway.
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Affiliation(s)
- Xiaobin Chi
- Department of Hepatobiliary Surgery, Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, Fujian 350001, P.R. China
| | - Yi Jiang
- Department of Hepatobiliary Surgery, Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, Fujian 350001, P.R. China
| | - Yongbiao Chen
- Department of Hepatobiliary Surgery, 900 Hospital of The Joint Logistics Team, Fuzhou, Fujian 350025, P.R. China
| | - Fang Yang
- Department of Hepatobiliary Surgery, 900 Hospital of The Joint Logistics Team, Fuzhou, Fujian 350025, P.R. China
| | - Qiucheng Cai
- Department of Hepatobiliary Surgery, 900 Hospital of The Joint Logistics Team, Fuzhou, Fujian 350025, P.R. China
| | - Fan Pan
- Department of Hepatobiliary Surgery, 900 Hospital of The Joint Logistics Team, Fuzhou, Fujian 350025, P.R. China
| | - Lizhi Lv
- Department of Hepatobiliary Surgery, 900 Hospital of The Joint Logistics Team, Fuzhou, Fujian 350025, P.R. China
| | - Xiaojin Zhang
- Department of Hepatobiliary Surgery, 900 Hospital of The Joint Logistics Team, Fuzhou, Fujian 350025, P.R. China
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16
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Martin N, Ma X, Bernard D. Regulation of cellular senescence by retinoid X receptors and their partners. Mech Ageing Dev 2019; 183:111131. [PMID: 31476329 DOI: 10.1016/j.mad.2019.111131] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Revised: 06/20/2019] [Accepted: 08/22/2019] [Indexed: 01/10/2023]
Abstract
Cellular senescence is a response characterized by a stable cell proliferation arrest and a senescence-associated secretory phenotype (SASP) which can be induced by many stresses, including telomere shortening and oncogene activation. Senescence is crucially involved in a variety of physiopathological contexts, such as cancer and aging. Given the fundamental role of this process, senescence needs to be tightly regulated. In the last decade, the key implication of nuclear receptors in cellular senescence has emerged. Here we will review the mechanisms involved in the control of cellular senescence by retinoid X receptors (RXRs) and their partners. We will also present our current knowledge on the regulation of these receptors during senescence and on their potential role in senescence-associated physiopathological conditions.
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Affiliation(s)
- Nadine Martin
- Centre de Recherche en Cancérologie de Lyon, Inserm U1052, CNRS UMR 5286, Université de Lyon, Centre Léon Bérard, Lyon, France.
| | - Xingjie Ma
- Centre de Recherche en Cancérologie de Lyon, Inserm U1052, CNRS UMR 5286, Université de Lyon, Centre Léon Bérard, Lyon, France
| | - David Bernard
- Centre de Recherche en Cancérologie de Lyon, Inserm U1052, CNRS UMR 5286, Université de Lyon, Centre Léon Bérard, Lyon, France.
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17
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Peters JM, Kim DJ, Bility MT, Borland MG, Zhu B, Gonzalez FJ. Regulatory mechanisms mediated by peroxisome proliferator-activated receptor-β/δ in skin cancer. Mol Carcinog 2019; 58:1612-1622. [PMID: 31062422 DOI: 10.1002/mc.23033] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 04/12/2019] [Accepted: 04/15/2019] [Indexed: 12/21/2022]
Abstract
Considerable progress has been made during the past 20 years towards elucidating the role of peroxisome proliferator-activated receptor-β/δ (PPARβ/δ) in skin cancer. In 1999, the original notion that PPARβ/δ was involved with epithelial cell function was postulated based on a correlation between PPARβ/δ expression and the induction of messenger RNAs encoding proteins that mediate terminal differentiation in keratinocytes. Subsequent studies definitively revealed that PPARβ/δ could induce terminal differentiation and inhibit proliferation of keratinocytes. Molecular mechanisms have since been discovered to explain how this nuclear receptor can be targeted for preventing and treating skin cancer. This includes the regulation of terminal differentiation, mitotic signaling, endoplasmic reticulum stress, and cellular senescence. Interestingly, the effects of activating PPARβ/δ can preferentially target keratinocytes with genetic mutations associated with skin cancer. This review provides the history and current understanding of how PPARβ/δ can be targeted for both nonmelanoma skin cancer and melanoma and postulates how future approaches that modulate PPARβ/δ signaling may be developed for the prevention and treatment of these diseases.
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Affiliation(s)
- Jeffrey M Peters
- Department of Veterinary and Biomedical Sciences, The Center of Molecular Toxicology and Carcinogenesis, The Pennsylvania State University, University Park, Pennsylvania
| | - Dae J Kim
- Department of Molecular Science, School of Medicine, University of Texas Rio Grande Valley, Edinburg, Texas
| | - Moses T Bility
- Department of Infectious Diseases and Microbiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Michael G Borland
- Department of Chemistry & Biochemistry, Bloomsburg University of Pennsylvania, Bloomsburg, Pennsylvania
| | - Bokai Zhu
- Division of Endocrinology and Metabolism, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Frank J Gonzalez
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
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18
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Ballester B, Milara J, Cortijo J. Idiopathic Pulmonary Fibrosis and Lung Cancer: Mechanisms and Molecular Targets. Int J Mol Sci 2019; 20:ijms20030593. [PMID: 30704051 PMCID: PMC6387034 DOI: 10.3390/ijms20030593] [Citation(s) in RCA: 176] [Impact Index Per Article: 35.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 01/18/2019] [Accepted: 01/28/2019] [Indexed: 12/18/2022] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is the most common idiopathic interstitial pulmonary disease with a median survival of 2–4 years after diagnosis. A significant number of IPF patients have risk factors, such as a history of smoking or concomitant emphysema, both of which can predispose the patient to lung cancer (LC) (mostly non-small cell lung cancer (NSCLC)). In fact, IPF itself increases the risk of LC development by 7% to 20%. In this regard, there are multiple common genetic, molecular, and cellular processes that connect lung fibrosis with LC, such as myofibroblast/mesenchymal transition, myofibroblast activation and uncontrolled proliferation, endoplasmic reticulum stress, alterations of growth factors expression, oxidative stress, and large genetic and epigenetic variations that can predispose the patient to develop IPF and LC. The current approved IPF therapies, pirfenidone and nintedanib, are also active in LC. In fact, nintedanib is approved as a second line treatment in NSCLC, and pirfenidone has shown anti-neoplastic effects in preclinical studies. In this review, we focus on the current knowledge on the mechanisms implicated in the development of LC in patients with IPF as well as in current IPF and LC-IPF candidate therapies based on novel molecular advances.
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Affiliation(s)
- Beatriz Ballester
- Department of Pharmacology, Faculty of Medicine, University of Valencia, 46010 Valencia, Spain.
- CIBERES, Health Institute Carlos III, 28029 Valencia, Spain.
| | - Javier Milara
- CIBERES, Health Institute Carlos III, 28029 Valencia, Spain.
- Pharmacy Unit, University Clinic Hospital of Valencia, 46010 Valencia, Spain.
- Institute of Health Research-INCLIVA, 46010 Valencia, Spain.
| | - Julio Cortijo
- Department of Pharmacology, Faculty of Medicine, University of Valencia, 46010 Valencia, Spain.
- CIBERES, Health Institute Carlos III, 28029 Valencia, Spain.
- Research and teaching Unit, University General Hospital Consortium, 46014 Valencia, Spain.
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Ma X, Warnier M, Raynard C, Ferrand M, Kirsh O, Defossez PA, Martin N, Bernard D. The nuclear receptor RXRA controls cellular senescence by regulating calcium signaling. Aging Cell 2018; 17:e12831. [PMID: 30216632 PMCID: PMC6260923 DOI: 10.1111/acel.12831] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Revised: 07/10/2018] [Accepted: 07/21/2018] [Indexed: 12/18/2022] Open
Abstract
Calcium signaling is emerging as a key pathway controlling cellular senescence, a stable cell proliferation arrest playing a fundamental role in pathophysiological conditions, such as embryonic development, wound healing, cancer, and aging. However, how calcium signaling is regulated is still only partially understood. The inositol 1, 4, 5‐trisphosphate receptor type 2 (ITPR2), an endoplasmic reticulum calcium release channel, was recently shown to critically contribute to the implementation of senescence, but how ITPR2 expression is controlled is unclear. To gain insights into the regulation of ITPR2 expression, we performed an siRNA screen targeting 160 transcription factors and epigenetic regulators. Interestingly, we discovered that the retinoid X receptor alpha (RXRA), which belongs to the nuclear receptor family, represses ITPR2 expression and regulates calcium signaling though ITPR2 and the mitochondrial calcium uniporter (MCU). Knockdown of RXRA induces the production of reactive oxygen species (ROS) and DNA damage via the ITPR2‐MCU calcium signaling axis and consequently triggers cellular senescence by activating p53, whereas RXRA overexpression decreases DNA damage accumulation and then delays replicative senescence. Altogether, our work sheds light on a novel mechanism controlling calcium signaling and cellular senescence and provides new insights into the role of nuclear receptors.
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Affiliation(s)
- Xingjie Ma
- Centre de Recherche en Cancérologie de Lyon, Inserm U1052, CNRS UMR 5286, Centre Léon Bérard; Université de Lyon; Lyon France
| | - Marine Warnier
- Centre de Recherche en Cancérologie de Lyon, Inserm U1052, CNRS UMR 5286, Centre Léon Bérard; Université de Lyon; Lyon France
| | - Clotilde Raynard
- Centre de Recherche en Cancérologie de Lyon, Inserm U1052, CNRS UMR 5286, Centre Léon Bérard; Université de Lyon; Lyon France
| | - Mylène Ferrand
- Centre de Recherche en Cancérologie de Lyon, Inserm U1052, CNRS UMR 5286, Centre Léon Bérard; Université de Lyon; Lyon France
| | - Olivier Kirsh
- Epigenetics and Cell Fate, Sorbonne Paris Cité, CNRS UMR 7216; Université Paris Diderot; Paris France
| | - Pierre-Antoine Defossez
- Epigenetics and Cell Fate, Sorbonne Paris Cité, CNRS UMR 7216; Université Paris Diderot; Paris France
| | - Nadine Martin
- Centre de Recherche en Cancérologie de Lyon, Inserm U1052, CNRS UMR 5286, Centre Léon Bérard; Université de Lyon; Lyon France
| | - David Bernard
- Centre de Recherche en Cancérologie de Lyon, Inserm U1052, CNRS UMR 5286, Centre Léon Bérard; Université de Lyon; Lyon France
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20
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Zhang Z, Zhang L, Zhou L, Lei Y, Zhang Y, Huang C. Redox signaling and unfolded protein response coordinate cell fate decisions under ER stress. Redox Biol 2018; 25:101047. [PMID: 30470534 PMCID: PMC6859529 DOI: 10.1016/j.redox.2018.11.005] [Citation(s) in RCA: 215] [Impact Index Per Article: 35.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Revised: 11/05/2018] [Accepted: 11/07/2018] [Indexed: 02/05/2023] Open
Abstract
Endoplasmic reticulum (ER) is a dynamic organelle orchestrating the folding and post-translational maturation of almost all membrane proteins and most secreted proteins. These proteins synthesized in the ER, need to form disulfide bridge to acquire specific three-dimensional structures for function. The formation of disulfide bridge is mediated via protein disulfide isomerase (PDI) family and other oxidoreductases, which contribute to reactive oxygen species (ROS) generation and consumption in the ER. Therefore, redox regulation of ER is delicate and sensitive to perturbation. Deregulation in ER homeostasis, usually called ER stress, can provoke unfolded protein response (UPR) pathways with an aim to initially restore homeostasis by activating genes involved in protein folding and antioxidative machinery. Over time, however, activated UPR involves a variety of cellular signaling pathways which determine the state and fate of cell in large part (like autophagy, apoptosis, ferroptosis, inflammation, senescence, stemness, and cell cycle, etc.). This review will describe the regulation of UPR from the redox perspective in controlling the cell survival or death, emphasizing the redox modifications of UPR sensors/transducers in the ER.
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Affiliation(s)
- Zhe Zhang
- Department of Biotherapy, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu 610041, PR China
| | - Lu Zhang
- Department of Biotherapy, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu 610041, PR China
| | - Li Zhou
- Department of Biotherapy, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu 610041, PR China
| | - Yunlong Lei
- Department of Biochemistry and Molecular Biology, and Molecular Medicine and Cancer Research Center, Chongqing Medical University, Chongqing 400016, PR China
| | - Yuanyuan Zhang
- Department of Pharmacology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu 610041, PR China.
| | - Canhua Huang
- Department of Biotherapy, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu 610041, PR China.
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21
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Kim HS, Kim Y, Lim MJ, Park YG, Park SI, Sohn J. The p38‐activated ER stress‐ATF6α axis mediates cellular senescence. FASEB J 2018; 33:2422-2434. [DOI: 10.1096/fj.201800836r] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Hee Suk Kim
- Department of Biochemistry and Molecular BiologyKorea University College of MedicineSeoulSouth Korea
- Korea Institute of Molecular Medicine and NutritionSeoulSouth Korea
| | - Yongjin Kim
- Department of Biochemistry and Molecular BiologyKorea University College of MedicineSeoulSouth Korea
- Korea Institute of Molecular Medicine and NutritionSeoulSouth Korea
| | - Min Jae Lim
- Department of Biochemistry and Molecular BiologyKorea University College of MedicineSeoulSouth Korea
- Korea Institute of Molecular Medicine and NutritionSeoulSouth Korea
| | - Yun-Gyu Park
- Department of Biochemistry and Molecular BiologyKorea University College of MedicineSeoulSouth Korea
- Korea Institute of Molecular Medicine and NutritionSeoulSouth Korea
| | - Serk In Park
- Department of Biochemistry and Molecular BiologyKorea University College of MedicineSeoulSouth Korea
- Korea Institute of Molecular Medicine and NutritionSeoulSouth Korea
| | - Jeongwon Sohn
- Department of Biochemistry and Molecular BiologyKorea University College of MedicineSeoulSouth Korea
- Korea Institute of Molecular Medicine and NutritionSeoulSouth Korea
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22
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Borland MG, Kehres EM, Lee C, Wagner AL, Shannon BE, Albrecht PP, Zhu B, Gonzalez FJ, Peters JM. Inhibition of tumorigenesis by peroxisome proliferator-activated receptor (PPAR)-dependent cell cycle blocks in human skin carcinoma cells. Toxicology 2018; 404-405:25-32. [PMID: 29729928 DOI: 10.1016/j.tox.2018.05.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 04/24/2018] [Accepted: 05/02/2018] [Indexed: 02/01/2023]
Abstract
To examine the functional role of peroxisome proliferator-activated receptor-β/δ (PPARβ/δ) and PPARγ in skin cancer, stable cell lines were created in the A431 human squamous cell carcinoma cell line. Expression of PPAR target genes was greatly enhanced in response to ligand activation of PPARβ/δ or PPARγ in A431 cells expressing these receptors. PPARβ/δ expression blocked the cell cycle at the G2/M phase, and this effect was increased by ligand activation. Ligand activation of PPARβ/δ markedly inhibited clonogenicity as compared to vehicle-treated controls. Similarly, ligand activation of PPARγ in A431 cells expressing PPARγ resulted in reduced clonogenicity. Expression of either PPARβ/δ or PPARγ markedly reduced tumor volume in ectopic xenografts, while ligand activation of these receptors had little further influence on tumor volume. Collectively, these studies demonstrate that stable expression and activation of PPARβ/δ or PPARγ in A431 cells led to reduced tumorigenicity. Importantly, PPAR expression or ligand activation had major impacts on clonogenicity and/or tumor volume. Thus, PPARβ/δ or PPARγ could be therapeutically targeted for the treatment of squamous cell carcinomas.
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Affiliation(s)
- Michael G Borland
- Department of Veterinary and Biomedical Sciences, The Center of Molecular Toxicology and Carcinogenesis, The Pennsylvania State University, University Park, PA 16802, USA; Department of Chemistry & Biochemistry, Bloomsburg University of Pennsylvania, Bloomsburg, PA 17815, USA
| | - Ellen M Kehres
- Department of Chemistry & Biochemistry, Bloomsburg University of Pennsylvania, Bloomsburg, PA 17815, USA
| | - Christina Lee
- Department of Veterinary and Biomedical Sciences, The Center of Molecular Toxicology and Carcinogenesis, The Pennsylvania State University, University Park, PA 16802, USA
| | - Ashley L Wagner
- Department of Chemistry & Biochemistry, Bloomsburg University of Pennsylvania, Bloomsburg, PA 17815, USA
| | - Brooke E Shannon
- Department of Chemistry & Biochemistry, Bloomsburg University of Pennsylvania, Bloomsburg, PA 17815, USA
| | - Prajakta P Albrecht
- Department of Veterinary and Biomedical Sciences, The Center of Molecular Toxicology and Carcinogenesis, The Pennsylvania State University, University Park, PA 16802, USA
| | - Bokai Zhu
- Department of Veterinary and Biomedical Sciences, The Center of Molecular Toxicology and Carcinogenesis, The Pennsylvania State University, University Park, PA 16802, USA
| | - Frank J Gonzalez
- Laboratory of Metabolism, National Cancer Institute, Bethesda, MD 20892, USA
| | - Jeffrey M Peters
- Department of Veterinary and Biomedical Sciences, The Center of Molecular Toxicology and Carcinogenesis, The Pennsylvania State University, University Park, PA 16802, USA.
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23
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24
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Integration of human adipocyte chromosomal interactions with adipose gene expression prioritizes obesity-related genes from GWAS. Nat Commun 2018; 9:1512. [PMID: 29666371 PMCID: PMC5904163 DOI: 10.1038/s41467-018-03554-9] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Accepted: 02/22/2018] [Indexed: 12/13/2022] Open
Abstract
Increased adiposity is a hallmark of obesity and overweight, which affect 2.2 billion people world-wide. Understanding the genetic and molecular mechanisms that underlie obesity-related phenotypes can help to improve treatment options and drug development. Here we perform promoter Capture Hi-C in human adipocytes to investigate interactions between gene promoters and distal elements as a transcription-regulating mechanism contributing to these phenotypes. We find that promoter-interacting elements in human adipocytes are enriched for adipose-related transcription factor motifs, such as PPARG and CEBPB, and contribute to heritability of cis-regulated gene expression. We further intersect these data with published genome-wide association studies for BMI and BMI-related metabolic traits to identify the genes that are under genetic cis regulation in human adipocytes via chromosomal interactions. This integrative genomics approach identifies four cis-eQTL-eGene relationships associated with BMI or obesity-related traits, including rs4776984 and MAP2K5, which we further confirm by EMSA, and highlights 38 additional candidate genes.
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25
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Abbadie C, Pluquet O, Pourtier A. Epithelial cell senescence: an adaptive response to pre-carcinogenic stresses? Cell Mol Life Sci 2017; 74:4471-4509. [PMID: 28707011 PMCID: PMC11107641 DOI: 10.1007/s00018-017-2587-9] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Revised: 06/27/2017] [Accepted: 07/06/2017] [Indexed: 01/01/2023]
Abstract
Senescence is a cell state occurring in vitro and in vivo after successive replication cycles and/or upon exposition to various stressors. It is characterized by a strong cell cycle arrest associated with several molecular, metabolic and morphologic changes. The accumulation of senescent cells in tissues and organs with time plays a role in organismal aging and in several age-associated disorders and pathologies. Moreover, several therapeutic interventions are able to prematurely induce senescence. It is, therefore, tremendously important to characterize in-depth, the mechanisms by which senescence is induced, as well as the precise properties of senescent cells. For historical reasons, senescence is often studied with fibroblast models. Other cell types, however, much more relevant regarding the structure and function of vital organs and/or regarding pathologies, are regrettably often neglected. In this article, we will clarify what is known on senescence of epithelial cells and highlight what distinguishes it from, and what makes it like, replicative senescence of fibroblasts taken as a standard.
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Affiliation(s)
- Corinne Abbadie
- Univ. Lille, CNRS, Institut Pasteur de Lille, UMR 8161-M3T-Mechanisms of Tumorigenesis and Targeted Therapies, 59000, Lille, France.
| | - Olivier Pluquet
- Univ. Lille, CNRS, Institut Pasteur de Lille, UMR 8161-M3T-Mechanisms of Tumorigenesis and Targeted Therapies, 59000, Lille, France
| | - Albin Pourtier
- Univ. Lille, CNRS, Institut Pasteur de Lille, UMR 8161-M3T-Mechanisms of Tumorigenesis and Targeted Therapies, 59000, Lille, France
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26
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ER stress and distinct outputs of the IRE1α RNase control proliferation and senescence in response to oncogenic Ras. Proc Natl Acad Sci U S A 2017; 114:9900-9905. [PMID: 28847931 DOI: 10.1073/pnas.1701757114] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Oncogenic Ras causes proliferation followed by premature senescence in primary cells, an initial barrier to tumor development. The role of endoplasmic reticulum (ER) stress and the unfolded protein response (UPR) in regulating these two cellular outcomes is poorly understood. During ER stress, the inositol requiring enzyme 1α (IRE1α) endoribonuclease (RNase), a key mediator of the UPR, cleaves Xbp1 mRNA to generate a potent transcription factor adaptive toward ER stress. However, IRE1α also promotes cleavage and degradation of ER-localized mRNAs essential for cell death. Here, we show that oncogenic HRas induces ER stress and activation of IRE1α. Reduction of ER stress or Xbp1 splicing using pharmacological, genetic, and RNAi approaches demonstrates that this adaptive response is critical for HRas-induced proliferation. Paradoxically, reduced ER stress or Xbp1 splicing promotes growth arrest and premature senescence through hyperactivation of the IRE1α RNase. Microarray analysis of IRE1α- and XBP1-depleted cells, validation using RNA cleavage assays, and 5' RACE identified the prooncogenic basic helix-loop-helix transcription factor ID1 as an IRE1α RNase target. Further, we demonstrate that Id1 degradation by IRE1α is essential for HRas-induced premature senescence. Together, our studies point to IRE1α as an important node for posttranscriptional regulation of the early Ras phenotype that is dependent on both oncogenic signaling as well as stress signals imparted by the tumor microenvironment and could be an important mechanism driving escape from Ras-induced senescence.
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27
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Yao PL, Morales JL, Gonzalez FJ, Peters JM. Peroxisome proliferator-activated receptor-β/δ modulates mast cell phenotype. Immunology 2017; 150:456-467. [PMID: 27935639 DOI: 10.1111/imm.12699] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Revised: 11/11/2016] [Accepted: 11/28/2016] [Indexed: 12/20/2022] Open
Abstract
The peroxisome proliferator-activated receptor-β/δ (PPARβ/δ) is known to have multiple anti-inflammatory effects, typically observed in endothelial cells, macrophages, T cells and B cells. Despite the fact that mast cells are important mediators of inflammation, to date, the role of PPARβ/δ in mast cells has not been examined. Hence, the present study examined the hypothesis that PPARβ/δ modulates mast cell phenotype. Bone-marrow-derived mast cells (BMMCs) and peritoneal mast cells from Pparβ/δ+/+ mice expressed higher levels of high-affinity IgE receptor (FcεRI) compared with Pparβ/δ-/- mice. BMMCs from Pparβ/δ+/+ mice also exhibited dense granules, associated with higher expression of enzymes and proteases compared with Pparβ/δ-/- mice. Resting BMMCs from Pparβ/δ+/+ mice secreted lower levels of inflammatory cytokines, associated with the altered activation of phospholipase Cγ1 and extracellular signal-regulated kinases compared with Pparβ/δ-/- mice. Moreover, the production of cytokines by mast cells induced by various stimuli was highly dependent on PPARβ/δ expression. This study demonstrates that PPARβ/δ is an important regulator of mast cell phenotype.
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Affiliation(s)
- Pei-Li Yao
- Department of Veterinary and Biomedical Sciences, The Center of Molecular Toxicology and Carcinogenesis, The Pennsylvania State University, University Park, PA, USA
| | - Jose L Morales
- Department of Veterinary and Biomedical Sciences, The Center of Molecular Toxicology and Carcinogenesis, The Pennsylvania State University, University Park, PA, USA
| | - Frank J Gonzalez
- Laboratory of Metabolism, National Cancer Institute, Bethesda, MD, USA
| | - Jeffrey M Peters
- Department of Veterinary and Biomedical Sciences, The Center of Molecular Toxicology and Carcinogenesis, The Pennsylvania State University, University Park, PA, USA
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28
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Wang X, Wang G, Shi Y, Sun L, Gorczynski R, Li YJ, Xu Z, Spaner DE. PPAR-delta promotes survival of breast cancer cells in harsh metabolic conditions. Oncogenesis 2016; 5:e232. [PMID: 27270614 PMCID: PMC4945742 DOI: 10.1038/oncsis.2016.41] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Accepted: 05/03/2016] [Indexed: 12/27/2022] Open
Abstract
Expression of the nuclear receptor peroxisome proliferator activated receptor delta (PPARδ) in breast cancer cells is negatively associated with patient survival, but the underlying mechanisms are not clear. High PPARδ protein levels in rat breast adenocarcinomas were found to be associated with increased growth in soft agar and mice. Transgenic expression of PPARδ increased the ability of human breast cancer cell lines to migrate in vitro and form lung metastases in mice. PPARδ also conferred the ability to grow in exhausted tissue culture media and survive in low-glucose and other endoplasmic reticulum stress conditions such as hypoxia. Upregulation of PPARδ by glucocorticoids or synthetic agonists also protected human breast cancer cells from low glucose. Survival in low glucose was related to increased antioxidant defenses mediated in part by catalase and also to late AKT phosphorylation, which is associated with the prolonged glucose-deprivation response. Synthetic antagonists reversed the survival benefits conferred by PPARδ in vitro. These findings suggest that PPARδ conditions breast cancer cells to survive in harsh microenvironmental conditions by reducing oxidative stress and enhancing survival signaling responses. Drugs that target PPARδ may have a role in the treatment of breast cancer.
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Affiliation(s)
- X Wang
- Biology Platform, Sunnybrook Research Institute, Toronto, Ontario, Canada.,Department of Breast Surgery, China-Japan Union Hospital of Jilin University, Changchun, China
| | - G Wang
- Biology Platform, Sunnybrook Research Institute, Toronto, Ontario, Canada
| | - Y Shi
- Biology Platform, Sunnybrook Research Institute, Toronto, Ontario, Canada
| | - L Sun
- Biology Platform, Sunnybrook Research Institute, Toronto, Ontario, Canada.,Department of Breast Surgery, China-Japan Union Hospital of Jilin University, Changchun, China
| | - R Gorczynski
- Department of Immunology, University of Toronto, Toronto, Ontario, Canada.,Transplant Research Division, Toronto General Hospital, Toronto, Ontario, Canada
| | - Y-J Li
- Biology Platform, Sunnybrook Research Institute, Toronto, Ontario, Canada.,Department of Anatomy, Norman Bethune College of Medicine, Jilin University, Changchun, China
| | - Z Xu
- Department of Breast Surgery, China-Japan Union Hospital of Jilin University, Changchun, China
| | - D E Spaner
- Biology Platform, Sunnybrook Research Institute, Toronto, Ontario, Canada.,Department of Immunology, University of Toronto, Toronto, Ontario, Canada.,Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada.,Sunnybrook Odette Cancer Center, Toronto, Ontario, Canada.,Department of Medicine, University of Toronto, Toronto, Ontario, Canada
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29
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"Inflammaging" as a Druggable Target: A Senescence-Associated Secretory Phenotype-Centered View of Type 2 Diabetes. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2016; 2016:1810327. [PMID: 27340505 PMCID: PMC4908264 DOI: 10.1155/2016/1810327] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Accepted: 05/09/2016] [Indexed: 12/22/2022]
Abstract
Aging is a complex phenomenon driven by a variety of molecular alterations. A relevant feature of aging is chronic low-grade inflammation, termed “inflammaging.” In type 2 diabetes mellitus (T2DM), many elements of aging appear earlier or are overrepresented, including consistent inflammaging. T2DM patients have an increased death rate, associated with an incremented inflammatory score. The source of this inflammation is debated. Recently, the senescence-associated secretory phenotype (SASP) has been proposed as the main origin of inflammaging in both aging and T2DM. Different pathogenic mechanisms linked to T2DM progression and complications development have been linked to senescence and SASP, that is, oxidative stress and endoplasmic reticulum (ER) stress. Here we review the latest data connecting oxidative and ER stress with the SASP in the context of aging and T2DM, with emphasis on endothelial cells (ECs) and endothelial dysfunction. Moreover, since current medical practice is insufficient to completely suppress the increased death rate of diabetic patients, we propose a SASP-centered view of T2DM as a futuristic therapeutic option, possibly opening new prospects by moving the attention from one-organ studies of diabetes complications to a wider targeting of the aging process.
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30
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Oroxin A inhibits breast cancer cell growth by inducing robust endoplasmic reticulum stress and senescence. Anticancer Drugs 2016; 27:204-15. [DOI: 10.1097/cad.0000000000000318] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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31
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van Moorsel CHM, Ten Klooster L, van Oosterhout MFM, de Jong PA, Adams H, Wouter van Es H, Ruven HJT, van der Vis JJ, Grutters JC. SFTPA2 Mutations in Familial and Sporadic Idiopathic Interstitial Pneumonia. Am J Respir Crit Care Med 2016; 192:1249-52. [PMID: 26568241 DOI: 10.1164/rccm.201504-0675le] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- Coline H M van Moorsel
- 1 St. Antonius Hospital Nieuwegein, the Netherlands and.,2 University Medical Center Utrecht Utrecht, the Netherlands
| | | | | | - Pim A de Jong
- 2 University Medical Center Utrecht Utrecht, the Netherlands
| | - Human Adams
- 1 St. Antonius Hospital Nieuwegein, the Netherlands and
| | | | | | | | - Jan C Grutters
- 1 St. Antonius Hospital Nieuwegein, the Netherlands and.,2 University Medical Center Utrecht Utrecht, the Netherlands
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32
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Xing Y, Zhang J, Lu L, Li D, Wang Y, Huang S, Li C, Zhang Z, Li J, Meng A. Identification of hub genes of pneumocyte senescence induced by thoracic irradiation using weighted gene co‑expression network analysis. Mol Med Rep 2015; 13:107-16. [PMID: 26572216 PMCID: PMC4686054 DOI: 10.3892/mmr.2015.4566] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2015] [Accepted: 10/14/2015] [Indexed: 01/03/2023] Open
Abstract
Irradiation commonly causes pneumocyte senescence, which may lead to severe fatal lung injury characterized by pulmonary dysfunction and respiratory failure. However, the molecular mechanism underlying the induction of pneumocyte senescence by irradiation remains to be elucidated. In the present study, weighted gene co-expression network analysis (WGCNA) was used to screen for differentially expressed genes, and to identify the hub genes and gene modules, which may be critical for senescence. A total of 2,916 differentially expressed genes were identified between the senescence and non-senescence groups following thoracic irradiation. In total, 10 gene modules associated with cell senescence were detected, and six hub genes were identified, including B-cell scaffold protein with ankyrin repeats 1, translocase of outer mitochondrial membrane 70 homolog A, actin filament-associated protein 1, Cd84, Nuf2 and nuclear factor erythroid 2. These genes were markedly associated with cell proliferation, cell division and cell cycle arrest. The results of the present study demonstrated that WGCNA of microarray data may provide further insight into the molecular mechanism underlying pneumocyte senescence.
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Affiliation(s)
- Yonghua Xing
- Tianjin Key Laboratory of Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Science and Peking Union Medical College, Nankai, Tianjin 300192, P.R. China
| | - Junling Zhang
- Tianjin Key Laboratory of Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Science and Peking Union Medical College, Nankai, Tianjin 300192, P.R. China
| | - Lu Lu
- Tianjin Key Laboratory of Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Science and Peking Union Medical College, Nankai, Tianjin 300192, P.R. China
| | - Deguan Li
- Tianjin Key Laboratory of Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Science and Peking Union Medical College, Nankai, Tianjin 300192, P.R. China
| | - Yueying Wang
- Tianjin Key Laboratory of Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Science and Peking Union Medical College, Nankai, Tianjin 300192, P.R. China
| | - Song Huang
- Tianjin Key Laboratory of Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Science and Peking Union Medical College, Nankai, Tianjin 300192, P.R. China
| | - Chengcheng Li
- Tianjin Key Laboratory of Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Science and Peking Union Medical College, Nankai, Tianjin 300192, P.R. China
| | - Zhubo Zhang
- Tianjin Key Laboratory of Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Science and Peking Union Medical College, Nankai, Tianjin 300192, P.R. China
| | - Jianguo Li
- Tianjin Key Laboratory of Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Science and Peking Union Medical College, Nankai, Tianjin 300192, P.R. China
| | - Aimin Meng
- Tianjin Key Laboratory of Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Science and Peking Union Medical College, Nankai, Tianjin 300192, P.R. China
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33
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Peters JM, Gonzalez FJ, Müller R. Establishing the Role of PPARβ/δ in Carcinogenesis. Trends Endocrinol Metab 2015; 26:595-607. [PMID: 26490384 PMCID: PMC4631629 DOI: 10.1016/j.tem.2015.09.004] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Revised: 09/10/2015] [Accepted: 09/12/2015] [Indexed: 12/16/2022]
Abstract
The role of the nuclear hormone receptor peroxisome proliferator-activated receptor β/δ (PPARβ/δ) in carcinogenesis is controversial because conflicting studies indicate that it both inhibits and promotes tumorigenesis. In this review, we focus on recent studies on PPARβ/δ including the significance of increased or decreased PPARβ/δ expression in cancers; a range of opposing mechanisms describing how PPARβ/δ agonists, antagonists, and inverse agonists regulate tumorigenesis and/or whether there may be cell context-specific mechanisms; and whether activating or inhibiting PPARβ/δ is feasible for cancer chemoprevention and/or therapy. Research questions that need to be addressed are highlighted to establish whether PPARβ/δ can be effectively targeted for cancer chemoprevention.
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Affiliation(s)
- Jeffrey M Peters
- Department of Veterinary and Biomedical Sciences and The Center of Molecular Toxicology and Carcinogenesis, The Pennsylvania State University, University Park, PA 16802, USA.
| | - Frank J Gonzalez
- Laboratory of Metabolism, National Cancer Institute, Bethesda, MD 20892, USA
| | - Rolf Müller
- Institute of Molecular Biology and Tumor Research, Center for Tumor Biology and Immunology, Philipps University, Hans-Meerwein-Straße 3, 35043 Marburg, Germany
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34
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Understanding Idiopathic Interstitial Pneumonia: A Gene-Based Review of Stressed Lungs. BIOMED RESEARCH INTERNATIONAL 2015; 2015:304186. [PMID: 26539479 PMCID: PMC4619788 DOI: 10.1155/2015/304186] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Accepted: 08/26/2015] [Indexed: 12/17/2022]
Abstract
Pulmonary fibrosis is the main cause of severe morbidity and mortality in idiopathic interstitial pneumonias (IIP). In the past years, there has been major progress in the discovery of genetic factors that contribute to disease. Genes with highly penetrant mutations or strongly predisposing common risk alleles have been identified in familial and sporadic IIP. This review summarizes genes harbouring causative rare mutations and replicated common predisposing alleles. To date, rare mutations in nine different genes and five risk alleles fulfil this criterion. Mutated genes represent three genes involved in surfactant homeostasis and six genes involved in telomere maintenance. We summarize gene function, gene expressing cells, and pathological consequences of genetic alterations associated with disease. Consequences of the genetic alteration include dysfunctional surfactant processing, ER stress, immune dysregulation, and maintenance of telomere length. Biological evidence shows that these processes point towards a central role for alveolar epithelial type II cell dysfunction. However, tabulation also shows that function and consequence of most common risk alleles are not known. Most importantly, the predisposition of the MUC5B risk allele to disease is not understood. We propose a mechanism whereby MUC5B decreases surface tension lowering capacity of alveolar surfactant at areas with maximal mechanical stress.
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35
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Chen H, Ruiz PD, McKimpson WM, Novikov L, Kitsis RN, Gamble MJ. MacroH2A1 and ATM Play Opposing Roles in Paracrine Senescence and the Senescence-Associated Secretory Phenotype. Mol Cell 2015; 59:719-31. [PMID: 26300260 DOI: 10.1016/j.molcel.2015.07.011] [Citation(s) in RCA: 162] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2015] [Revised: 05/28/2015] [Accepted: 07/15/2015] [Indexed: 01/07/2023]
Abstract
Oncogene-induced senescence (OIS) is a tumor-suppressive mechanism typified by stable proliferative arrest, a persistent DNA damage response, and the senescence-associated secretory phenotype (SASP), which helps to maintain the senescent state and triggers bystander senescence in a paracrine fashion. Here, we demonstrate that the tumor suppressive histone variant macroH2A1 is a critical component of the positive feedback loop that maintains SASP gene expression and triggers the induction of paracrine senescence. MacroH2A1 undergoes dramatic genome-wide relocalization during OIS, including its removal from SASP gene chromatin. The removal of macroH2A1 from SASP genes results from a negative feedback loop activated by SASP-mediated endoplasmic reticulum (ER) stress. ER stress leads to increased reactive oxygen species and persistent DNA damage response including activation of ATM, which mediates removal macroH2A1 from SASP genes. Together, our findings indicate that macroH2A1 is a critical control point for the regulation of SASP gene expression during senescence.
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Affiliation(s)
- Hongshan Chen
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Yeshiva University, Bronx, NY 10461, USA
| | - Penelope D Ruiz
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Yeshiva University, Bronx, NY 10461, USA
| | - Wendy M McKimpson
- Department of Cell Biology, Albert Einstein College of Medicine, Yeshiva University, Bronx, NY 10461, USA; Department of Medicine, Albert Einstein College of Medicine, Yeshiva University, Bronx, NY 10461, USA; Wilf Family Cardiovascular Research Institute, Albert Einstein College of Medicine, Yeshiva University, Bronx, NY 10461, USA
| | - Leonid Novikov
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Yeshiva University, Bronx, NY 10461, USA
| | - Richard N Kitsis
- Department of Cell Biology, Albert Einstein College of Medicine, Yeshiva University, Bronx, NY 10461, USA; Department of Medicine, Albert Einstein College of Medicine, Yeshiva University, Bronx, NY 10461, USA; Wilf Family Cardiovascular Research Institute, Albert Einstein College of Medicine, Yeshiva University, Bronx, NY 10461, USA
| | - Matthew J Gamble
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Yeshiva University, Bronx, NY 10461, USA.
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36
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Yao PL, Chen L, Hess RA, Müller R, Gonzalez FJ, Peters JM. Peroxisome Proliferator-activated Receptor-D (PPARD) Coordinates Mouse Spermatogenesis by Modulating Extracellular Signal-regulated Kinase (ERK)-dependent Signaling. J Biol Chem 2015; 290:23416-31. [PMID: 26242735 DOI: 10.1074/jbc.m115.664508] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Indexed: 12/13/2022] Open
Abstract
Ppard(-/-) mice exhibit smaller litter size compared with Ppard(+/+) mice. To determine whether peroxisome proliferator-activated receptor-D (PPARD) could possibly influence this phenotype, the role of PPARD in testicular biology was examined. Atrophic testes and testicular degeneration were observed in Ppard(-/-) mice compared with Ppard(+/+) mice, indicating that PPARD modulates spermatogenesis. Higher expression of p27 and decreased expression of proliferating cellular nuclear antigen in Sertoli cells were observed in Ppard(+/+) mice as compared with Ppard(-/-) mice, and these were associated with decreased Sertoli cell number in Ppard(+/+) mice. Cyclin D1 and cyclin D2 expression was lower in Ppard(+/+) as compared with Ppard(-/-) mice. Ligand activation of PPARD inhibited proliferation of a mouse Sertoli cell line, TM4, and an inverse agonist of PPARD (DG172) rescued this effect. Temporal inhibition of extracellular signal-regulated kinase (ERK) activation by PPARD in the testis was observed in Ppard(+/+) mice and was associated with decreased serum follicle-stimulating hormone and higher claudin-11 expression along the blood-testis barrier. PPARD-dependent ERK activation also altered expression of claudin-11, p27, cyclin D1, and cyclin D2 in TM4 cells, causing inhibition of cell proliferation, maturation, and formation of tight junctions in Sertoli cells, thus confirming a requirement for PPARD in accurate Sertoli cell function. Combined, these results reveal for the first time that PPARD regulates spermatogenesis by modulating the function of Sertoli cells during early testis development.
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Affiliation(s)
- Pei-Li Yao
- From the Department of Veterinary and Biomedical Sciences and The Center of Molecular Toxicology and Carcinogenesis, The Pennsylvania State University, University Park, Pennsylvania 16802,
| | - LiPing Chen
- From the Department of Veterinary and Biomedical Sciences and The Center of Molecular Toxicology and Carcinogenesis, The Pennsylvania State University, University Park, Pennsylvania 16802
| | - Rex A Hess
- Reproductive Biology and Toxicology, Department of Comparative Biosciences, College of Veterinary Medicine, University of Illinois, Urbana, Illinois 61802
| | - Rolf Müller
- Institute of Molecular Biology and Tumor Research, Center for Tumor and Immunobiology, Philipps University, Hans-Meerwein-Strasse 3, 35043 Marburg, Germany, and
| | - Frank J Gonzalez
- Laboratory of Metabolism, NCI, National Institutes of Health, Bethesda, Maryland 20892
| | - Jeffrey M Peters
- From the Department of Veterinary and Biomedical Sciences and The Center of Molecular Toxicology and Carcinogenesis, The Pennsylvania State University, University Park, Pennsylvania 16802,
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PPARβ/δ Agonist Provides Neuroprotection by Suppression of IRE1α–Caspase-12-Mediated Endoplasmic Reticulum Stress Pathway in the Rotenone Rat Model of Parkinson’s Disease. Mol Neurobiol 2015; 53:3822-3831. [DOI: 10.1007/s12035-015-9309-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Accepted: 06/18/2015] [Indexed: 12/11/2022]
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Nakanuma Y, Sasaki M, Harada K. Autophagy and senescence in fibrosing cholangiopathies. J Hepatol 2015; 62:934-45. [PMID: 25435435 DOI: 10.1016/j.jhep.2014.11.027] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Revised: 11/08/2014] [Accepted: 11/16/2014] [Indexed: 12/16/2022]
Abstract
Fibrosing cholangiopathy such as primary sclerosing cholangitis (PSC) and biliary atresia (BA) is characterized by biliary epithelial injuries and concentric fibrous obliteration of the biliary tree together with inflammatory cell infiltration. In these diseases, inappropriate innate immunity is reported to contribute more to bile duct pathology as compared with various aspects of "classical" autoimmune diseases. Primary biliary cirrhosis (PBC) is characterized by chronic cholangitis with bile duct loss and classical autoimmune features. Cellular senescence of cholangiocytes and a senescence-associated secretory phenotype lead to the production of proinflammatory cytokines and chemokines that may modify the milieu of the bile duct and then trigger fibroinflammatory responses in PSC and PBC. Furthermore, deregulated autophagy might be involved in cholangiocyte senescence and possibly in the autoimmune process in PBC, and the deregulated innate immunity against enteric microbes or their products that is associated with cholangiocyte senescence might result in the fibrosing cholangitis that develops in PBC and PSC. In BA, innate immunity against double-stranded RNA viruses might be involved in cholangiocyte apoptosis and also in the development of the epithelial-mesenchymal transition of cholangiocytes that results in fibrous obliteration of bile ducts. These recent advances in the understanding of immune-mediated biliary diseases represent a paradigm shift: the cholangiocyte is no longer viewed merely as a passive victim of injury; it is now also considered to function as a potential effector in bile duct pathology.
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Affiliation(s)
- Yasuni Nakanuma
- Department of Diagnostic Pathology, Shizuoka Cancer Center, Shizuoka, Japan; Department of Pathology, Kanazawa University Graduate School of Medical Science, Japan.
| | - Motoko Sasaki
- Department of Pathology, Kanazawa University Graduate School of Medical Science, Japan
| | - Kenichi Harada
- Department of Pathology, Kanazawa University Graduate School of Medical Science, Japan
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Pluquet O, Pourtier A, Abbadie C. The unfolded protein response and cellular senescence. A review in the theme: cellular mechanisms of endoplasmic reticulum stress signaling in health and disease. Am J Physiol Cell Physiol 2014; 308:C415-25. [PMID: 25540175 DOI: 10.1152/ajpcell.00334.2014] [Citation(s) in RCA: 199] [Impact Index Per Article: 19.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The endoplasmic reticulum (ER) is a multifunctional organelle critical for the proper folding and assembly of secreted and transmembrane proteins. Perturbations of ER functions cause ER stress, which activates a coordinated system of transcriptional and translational controls called the unfolded protein response (UPR), to cope with accumulation of misfolded proteins and proteotoxicity. It results in ER homeostasis restoration or in cell death. Senescence is a complex cell phenotype induced by several stresses such as telomere attrition, DNA damage, oxidative stress, and activation of some oncogenes. It is mainly characterized by a cell enlargement, a permanent cell-cycle arrest, and the production of a secretome enriched in proinflammatory cytokines and components of the extracellular matrix. Senescent cells accumulate with age in tissues and are suspected to play a role in age-associated diseases. Since senescence is a stress response, the question arises of whether an ER stress could occur concomitantly with senescence and participate in the onset or maintenance of the senescent features. Here, we described the interconnections between the UPR signaling and the different aspects of the cellular senescence programs and discuss the implication of UPR modulations in this context.
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Affiliation(s)
- Olivier Pluquet
- Centre National de la Recherche Scientifique, UMR8161, Institut de Biologie de Lille, Lille, France; Université Lille 1 Sciences et Techniques, Villeneuve d'Ascq, France; Université Lille 2 Droit et Santé, Lille, France; and Institut Pasteur de Lille, Lille, France
| | - Albin Pourtier
- Centre National de la Recherche Scientifique, UMR8161, Institut de Biologie de Lille, Lille, France; Université Lille 1 Sciences et Techniques, Villeneuve d'Ascq, France; Université Lille 2 Droit et Santé, Lille, France; and Institut Pasteur de Lille, Lille, France
| | - Corinne Abbadie
- Centre National de la Recherche Scientifique, UMR8161, Institut de Biologie de Lille, Lille, France; Université Lille 1 Sciences et Techniques, Villeneuve d'Ascq, France; Université Lille 2 Droit et Santé, Lille, France; and Institut Pasteur de Lille, Lille, France
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Garg AD, Maes H, van Vliet AR, Agostinis P. Targeting the hallmarks of cancer with therapy-induced endoplasmic reticulum (ER) stress. Mol Cell Oncol 2014; 2:e975089. [PMID: 27308392 PMCID: PMC4905250 DOI: 10.4161/23723556.2014.975089] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2014] [Revised: 09/24/2014] [Accepted: 09/25/2014] [Indexed: 12/19/2022]
Abstract
The endoplasmic reticulum (ER) is at the center of a number of vital cellular processes such as cell growth, death, and differentiation, crosstalk with immune or stromal cells, and maintenance of proteostasis or homeostasis, and ER functions have implications for various pathologies including cancer. Recently, a number of major hallmarks of cancer have been delineated that are expected to facilitate the development of anticancer therapies. However, therapeutic induction of ER stress as a strategy to broadly target multiple hallmarks of cancer has been seldom discussed despite the fact that several primary or secondary ER stress-inducing therapies have been found to exhibit positive clinical activity in cancer patients. In the present review we provide a brief historical overview of the major discoveries and milestones in the field of ER stress biology with important implications for anticancer therapy. Furthermore, we comprehensively discuss possible strategies enabling the targeting of multiple hallmarks of cancer with therapy-induced ER stress.
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Affiliation(s)
- Abhishek D Garg
- Cell Death Research & Therapy (CDRT) Laboratory; Department for Cellular and Molecular Medicine; KU Leuven University of Leuven ; Leuven, Belgium
| | - Hannelore Maes
- Cell Death Research & Therapy (CDRT) Laboratory; Department for Cellular and Molecular Medicine; KU Leuven University of Leuven ; Leuven, Belgium
| | - Alexander R van Vliet
- Cell Death Research & Therapy (CDRT) Laboratory; Department for Cellular and Molecular Medicine; KU Leuven University of Leuven ; Leuven, Belgium
| | - Patrizia Agostinis
- Cell Death Research & Therapy (CDRT) Laboratory; Department for Cellular and Molecular Medicine; KU Leuven University of Leuven ; Leuven, Belgium
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