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Mikheil DM, Prabhakar K, Arshad A, Rodriguez CI, Newton MA, Setaluri V. Notch signaling activation induces cell death in MAPKi-resistant melanoma cells. Pigment Cell Melanoma Res 2019; 32:528-539. [PMID: 30614626 DOI: 10.1111/pcmr.12764] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Revised: 12/09/2018] [Accepted: 12/20/2018] [Indexed: 01/12/2023]
Abstract
The role of Notch signaling in melanoma drug resistance is not well understood. In this study, we show that although NOTCH proteins are upregulated in metastatic melanoma cell lines, Notch signaling inhibition had no effect on cell survival, growth, migration or the sensitivity of BRAFV600E-melanoma cells to MAPK inhibition (MAPKi). We found that NOTCH1 is downregulated in melanoma cell lines with intrinsic and acquired resistance to MAPKi. Forced expression of NICD1, the active form of Notch1, caused apoptosis of the NOTCHlo , MAPKi-resistant cells, but not the NOTCHhi , MAPKi-sensitive melanoma cell lines. Whole transcriptome-sequencing analyses of NICD1-transduced MAPKi-sensitive and MAPKi-resistant cells revealed differential regulation of endothelin 1 (EDN1) by NICD1, that is, downregulation in MAPKi-resistant cells and upregulation in MAPKi-sensitive cells. Knockdown of EDN1 partially mimicked the effect of NICD1 on the survival of MAPKi-resistant cells. We show that the opposite regulation of EDN1 by Notch signaling is mediated by the differential regulation of c-JUN by NICD1. Our data show that MAPKi-resistant melanoma cells acquire vulnerability to Notch signaling activation and suggest that Notch-c-JUN-EDN1 axis is a potential therapeutic target in MAPKi-resistant melanoma.
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Affiliation(s)
- Dareen M Mikheil
- Comparative Biomedical Sciences Graduate Program, University of Wisconsin, Madison, Wisconsin.,Department of Dermatology, University of Wisconsin, Madison, Wisconsin.,William S. Middleton Veterans Hospital, Madison, Wisconsin
| | | | - Ayyan Arshad
- Department of Dermatology, University of Wisconsin, Madison, Wisconsin
| | | | - Michael A Newton
- Department of Biostatistics & Medical Informatics, University of Wisconsin, Madison, Wisconsin
| | - Vijayasaradhi Setaluri
- Comparative Biomedical Sciences Graduate Program, University of Wisconsin, Madison, Wisconsin.,Department of Dermatology, University of Wisconsin, Madison, Wisconsin.,William S. Middleton Veterans Hospital, Madison, Wisconsin
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The Effect of Smoking on Endothelin-1 in Patients With Chronic Pancreatitis. Appl Immunohistochem Mol Morphol 2015; 23:288-96. [DOI: 10.1097/pai.0000000000000077] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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Pandit MM, Inscho EW, Zhang S, Seki T, Rohatgi R, Gusella L, Kishore B, Kohan DE. Flow regulation of endothelin-1 production in the inner medullary collecting duct. Am J Physiol Renal Physiol 2015; 308:F541-52. [PMID: 25587122 DOI: 10.1152/ajprenal.00456.2014] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Collecting duct-derived endothelin (ET)-1 is an autocrine inhibitor of Na(+) and water reabsorption; its deficiency causes hypertension and water retention. Extracellular fluid volume expansion increases collecting duct ET-1, thereby promoting natriuresis and diuresis; however, how this coupling between volume expansion and collecting duct ET-1 occurs is incompletely understood. One possibility is that volume expansion increases tubular fluid flow. To investigate this, cultured IMCD3 cells were subjected to static or flow conditions. Exposure to a shear stress of 2 dyn/cm(2) for 2 h increased ET-1 mRNA content by ∼2.3-fold. Absence of perfusate Ca(2+), chelation of intracellular Ca(2+), or inhibition of Ca(2+) signaling (calmodulin, Ca(2+)/calmodulin-dependent kinase, calcineurin, PKC, or phospholipase C) prevented the flow response. Evaluation of possible flow-activated Ca(2+) entry pathways revealed no role for transient receptor potential (TRP)C3, TRPC6, and TRPV4; however, cells with TRPP2 (polycystin-2) knockdown had no ET-1 flow response. Flow increased intracellular Ca(2+) was blunted in TRPP2 knockdown cells. Nonspecific blockade of P2 receptors, as well as specific inhibition of P2X7 and P2Y2 receptors, prevented the ET-1 flow response. The ET-1 flow response was not affected by inhibition of either epithelial Na(+) channels or the mitochondrial Na(+)/Ca(2+) exchanger. Taken together, these findings provide evidence that in IMCD3 cells, flow, via polycystin-2 and P2 receptors, engages Ca(2+)-dependent signaling pathways that stimulate ET-1 synthesis.
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Affiliation(s)
- Meghana M Pandit
- Division of Nephrology, University of Utah Health Sciences Center, Salt Lake City, Utah; Department of Pharmaceutics and Pharmaceutical Chemistry, Salt Lake City, Utah
| | | | - Shali Zhang
- University of Alabama at Birmingham, Birmingham, Alabama
| | - Tsugio Seki
- Department of Medical Education, California Northstate University, Elk Grove, California
| | - Rajeev Rohatgi
- Department of Medicine, James J. Peter Veterans Affairs Medical Center, Bronx, New York; Department of Medicine and Pediatrics, Icahn School of Medicine at Mount Sinai, New York, New York; and
| | - Luca Gusella
- Department of Medicine, James J. Peter Veterans Affairs Medical Center, Bronx, New York; Department of Medicine and Pediatrics, Icahn School of Medicine at Mount Sinai, New York, New York; and
| | - Bellamkonda Kishore
- Division of Nephrology, University of Utah Health Sciences Center, Salt Lake City, Utah; Salt Lake Veterans Affairs Medical Center, Salt Lake City, Utah
| | - Donald E Kohan
- Division of Nephrology, University of Utah Health Sciences Center, Salt Lake City, Utah; Department of Pharmaceutics and Pharmaceutical Chemistry, Salt Lake City, Utah; Salt Lake Veterans Affairs Medical Center, Salt Lake City, Utah
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Du Y, Zhao W, Lu L, Zheng J, Hu X, Yu Z, Zhu L. Study on the antiulcer effects of Veronicastrum axillare on gastric ulcer in rats induced by ethanol based on tumor necrosis factor-α (TNF-α) and endothelin-1 (ET-1). Asian Pac J Trop Biomed 2013; 3:925-30. [PMID: 24093781 PMCID: PMC3804741 DOI: 10.1016/s2221-1691(13)60180-x] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2013] [Revised: 10/10/2013] [Accepted: 11/17/2013] [Indexed: 01/10/2023] Open
Abstract
OBJECTIVE To assess whether Veronicastrum axillare (V. axillare) can ameliorate ethanol-induced gastric mucosal lesions in rats, reduce the production of pro-inflammatory cytokines, suppress apoptosis and improve local microcirculation disturbances. METHODS Totally 48 male Sprague-Dawley rats were randomly divided into six groups, eight rats in each group. Rats in the normal group and the model group were administered with 0.9% normal saline respectively. Rats in the positive group and ranitidine group were administered with 0.18% ranitidine suspension by intragastric administration respectively. Those in the high dose V. axillare group, the medium dose V. axillare group and the low dose V. axillare group were administrated with V. axillare at the daily dose of 2.8 g/kg, 1.4 g/kg and 0.7 g/kg by intragastric administration. Gastric mucosal lesions were produced by intragastric administration of absolute ethanol. Water extract of V. axillare was successively injected for 14 d and last day was injected 1 h before ethanol administration. Gastric mucosal ulcer index and ulcer inhibitory rate were counted by improved Guth methods. The tissue sections were made for pathological histology analysis. Also, we measured the concentrations of tumor necrosis factor-α (TNF-α) and endothelin-1 (ET-1) in gastric mucosal, as an index of the pro-inflammatory cytokines, apoptosis and local microcirculation. Besides, the mRNA contents of TNF-α and ET-1 were measured to verify effects on gene expression by real-time fluorescent quantitative PCR. RESULTS Water extract of V. axillare significantly ameliorated the gastric mucosal lesions induced by ethanol administration (P<0.01). Pro-inflammatory cytokines, TNF-α and ET-1 were increased after ethanol administration and significantly reduced by water extract of V. axillare. The expressions of TNF-α and ET-1 mRNA were also be inhibited by water extract of V. axillare. CONCLUSION Current evidences show water extract of V. axillare is effective for defending against ethanol-induced gastric mucosal lesions, significantly inhibiting the production of pro-inflammatory cytokines and the expressions of TNF-α and ET-1 mRNA, which may be useful for inhibiting apoptosis and improving local microcirculation.
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Affiliation(s)
| | - Weichun Zhao
- *Corresponding author: Dr. Weichun Zhao, College of Bioengineering, Zhejiang Chinese Medical University, Hangzhou, 310053 China. Tel: +86 571 8661 3712 E-mail:
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Kohan DE. Role of collecting duct endothelin in control of renal function and blood pressure. Am J Physiol Regul Integr Comp Physiol 2013; 305:R659-68. [PMID: 23986358 DOI: 10.1152/ajpregu.00345.2013] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Over 26,000 manuscripts have been published dealing with endothelins since their discovery 25 years ago. These peptides, and particularly endothelin-1 (ET-1), are expressed by, bind to, and act on virtually every cell type in the body, influencing multiple biological functions. Among these actions, the effects of ET-1 on arterial pressure and volume homeostasis have been most extensively studied. While ET-1 modulates arterial pressure through regulation of multiple organ systems, the peptide's actions in the kidney in general, and the collecting duct in particular, are of unique importance. The collecting duct produces large amounts of ET-1 that bind in an autocrine manner to endothelin A and B receptors, causing inhibition of Na(+) and water reabsorption; absence of collecting duct ET-1 or its receptors is associated with marked salt-sensitive hypertension. Collecting duct ET-1 production is stimulated by Na(+) and water loading through local mechanisms that include sensing of salt and other solute delivery as well as shear stress. Thus the collecting duct ET-1 system exists, at least in part, to detect alterations in, and maintain homeostasis for, extracellular fluid volume. Derangements in collecting duct ET-1 production may contribute to the pathogenesis of genetic hypertension. Blockade of endothelin receptors causes fluid retention due, in large part, to inhibition of the action of ET-1 in the collecting duct; this side effect has substantially limited the clinical utility of this class of drugs. Herein, the biology of the collecting duct ET-1 system is reviewed, with particular emphasis on key issues and questions that need addressing.
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Affiliation(s)
- Donald E Kohan
- Division of Nephrology, University of Utah Health Sciences Center, Salt Lake City, Utah
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McKenzie GAG, Hinsley EE, Hunter K, Lambert DW. The endothelin axis in head and neck cancer: a promising therapeutic opportunity? J Oral Pathol Med 2013; 43:395-404. [DOI: 10.1111/jop.12108] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/11/2013] [Indexed: 12/14/2022]
Affiliation(s)
- Gordon A. G. McKenzie
- College of Medical and Dental Sciences; University of Birmingham; Edgbaston UK
- Unit of Oral and Maxillofacial Pathology; School of Clinical Dentistry; University of Sheffield; Sheffield UK
| | - Emma E. Hinsley
- Unit of Oral and Maxillofacial Pathology; School of Clinical Dentistry; University of Sheffield; Sheffield UK
| | - Keith Hunter
- Unit of Oral and Maxillofacial Pathology; School of Clinical Dentistry; University of Sheffield; Sheffield UK
| | - Daniel W. Lambert
- Unit of Oral and Maxillofacial Pathology; School of Clinical Dentistry; University of Sheffield; Sheffield UK
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Tanfin Z, Breuiller-Fouché M. The endothelin axis in uterine leiomyomas: new insights. Biol Reprod 2012; 87:5, 1-10. [PMID: 22553222 DOI: 10.1095/biolreprod.111.097725] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The endothelin axis, comprising endothelin-1 (ET-1) and its receptors (ETA and ETB), is involved in the pathophysiology of different human tumors. Here we review conventional approaches and gene expression profiling indicating the association of ET-1 and its cognate receptors with human and rat leiomyomas, the most common benign tumors of myometrium. Specifically, ET-1/ETA interactions affect human and rat leiomyoma cell proliferation through protein kinase C and mitogen-activated protein kinase-dependent signaling pathways. Recent experiments demonstrate that the ET-1 axis exerts a potent antiapoptotic effect involving sphingolipid metabolism and prostaglandin-endoperoxide synthase 2/prostaglandin system in the rat Eker leiomyoma tumor-derived ELT3 cell line. Evidence supports that steroid hormones, growth factors, and extracellular matrix are key regulators of the leiomyoma growth. Interestingly, the ET-1 axis is under steroid hormones and can cooperate with these growth factors. Therefore, ET-1 alone or in association with these factors could contribute to the complex regulation of uterine tumor growth, such as proliferation, survival, and extracellular matrix production. This review summarizes current knowledge and emerging data on ET-1 in uterine leiomyoma pathology.
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Affiliation(s)
- Zahra Tanfin
- Université Paris-Sud-11, Centre National de la Recherche Scientifique (CNRS), Institut de Biochimie et Biophysique Moléculaire et Cellulaire, Equipe Signalisation Moléculaire et Cellulaire utérine, Orsay, France
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