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Arndt P, Turkowski K, Cekay M, Eul B, Grimminger F, Savai R. Endothelin and the tumor microenvironment: a finger in every pie. Clin Sci (Lond) 2024; 138:617-634. [PMID: 38785410 PMCID: PMC11130555 DOI: 10.1042/cs20240426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Revised: 05/07/2024] [Accepted: 05/08/2024] [Indexed: 05/25/2024]
Abstract
The tumor microenvironment (TME) plays a central role in the development of cancer. Within this complex milieu, the endothelin (ET) system plays a key role by triggering epithelial-to-mesenchymal transition, causing degradation of the extracellular matrix and modulating hypoxia response, cell proliferation, composition, and activation. These multiple effects of the ET system on cancer progression have prompted numerous preclinical studies targeting the ET system with promising results, leading to considerable optimism for subsequent clinical trials. However, these clinical trials have not lived up to the high expectations; in fact, the clinical trials have failed to demonstrate any substantiated benefit of targeting the ET system in cancer patients. This review discusses the major and recent advances of the ET system with respect to TME and comments on past and ongoing clinical trials of the ET system.
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Affiliation(s)
- Philipp F. Arndt
- Lung Microenvironmental Niche in Cancerogenesis, Institute for Lung Health (ILH), Justus Liebig University, Giessen, Germany
- Department of Internal Medicine, Justus-Liebig-University Giessen, Universities of Giessen and Marburg Lung Centre (UGMLC), Member of the Cardio-Pulmonary Institute (CPI), Member of the German Centre for Lung Research (DZL), Giessen, Germany
- Max Planck Institute for Heart and Lung Research, Member of the DZL, Member of the CPI, Bad Nauheim, Germany
| | - Kati Turkowski
- Lung Microenvironmental Niche in Cancerogenesis, Institute for Lung Health (ILH), Justus Liebig University, Giessen, Germany
- Max Planck Institute for Heart and Lung Research, Member of the DZL, Member of the CPI, Bad Nauheim, Germany
| | - Michael J. Cekay
- Lung Microenvironmental Niche in Cancerogenesis, Institute for Lung Health (ILH), Justus Liebig University, Giessen, Germany
- Department of Internal Medicine, Justus-Liebig-University Giessen, Universities of Giessen and Marburg Lung Centre (UGMLC), Member of the Cardio-Pulmonary Institute (CPI), Member of the German Centre for Lung Research (DZL), Giessen, Germany
| | - Bastian Eul
- Department of Internal Medicine, Justus-Liebig-University Giessen, Universities of Giessen and Marburg Lung Centre (UGMLC), Member of the Cardio-Pulmonary Institute (CPI), Member of the German Centre for Lung Research (DZL), Giessen, Germany
| | - Friedrich Grimminger
- Lung Microenvironmental Niche in Cancerogenesis, Institute for Lung Health (ILH), Justus Liebig University, Giessen, Germany
- Department of Internal Medicine, Justus-Liebig-University Giessen, Universities of Giessen and Marburg Lung Centre (UGMLC), Member of the Cardio-Pulmonary Institute (CPI), Member of the German Centre for Lung Research (DZL), Giessen, Germany
| | - Rajkumar Savai
- Lung Microenvironmental Niche in Cancerogenesis, Institute for Lung Health (ILH), Justus Liebig University, Giessen, Germany
- Department of Internal Medicine, Justus-Liebig-University Giessen, Universities of Giessen and Marburg Lung Centre (UGMLC), Member of the Cardio-Pulmonary Institute (CPI), Member of the German Centre for Lung Research (DZL), Giessen, Germany
- Max Planck Institute for Heart and Lung Research, Member of the DZL, Member of the CPI, Bad Nauheim, Germany
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Inclán M, Torres Hernández N, Martínez Serra A, Torrijos Jabón G, Blasco S, Andreu C, del Olmo ML, Jávega B, O’Connor JE, García-España E. Antimicrobial Properties of New Polyamines Conjugated with Oxygen-Containing Aromatic Functional Groups. Molecules 2023; 28:7678. [PMID: 38005400 PMCID: PMC10675077 DOI: 10.3390/molecules28227678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 11/09/2023] [Accepted: 11/16/2023] [Indexed: 11/26/2023] Open
Abstract
Antibiotic resistance is now a first-order health problem, which makes the development of new families of antimicrobials imperative. These compounds should ideally be inexpensive, readily available, highly active, and non-toxic. Here, we present the results of our investigation regarding the antimicrobial activity of a series of natural and synthetic polyamines with different architectures (linear, tripodal, and macrocyclic) and their derivatives with the oxygen-containing aromatic functional groups 1,3-benzodioxol, ortho/para phenol, or 2,3-dihydrobenzofuran. The new compounds were prepared through an inexpensive process, and their activity was tested against selected strains of yeast, as well as Gram-positive and Gram-negative bacteria. In all cases, the conjugated derivatives showed antimicrobial activity higher than the unsubstituted polyamines. Several factors, such as the overall charge at physiological pH, lipophilicity, and the topology of the polyamine scaffold were relevant to their activity. The nature of the lipophilic moiety was also a determinant of human cell toxicity. The lead compounds were found to be bactericidal and fungistatic, and they were synergic with the commercial antifungals fluconazole, cycloheximide, and amphotericin B against the yeast strains tested.
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Affiliation(s)
- Mario Inclán
- Institute of Molecular Science, University of Valencia, 46980 Valencia, Spain; (N.T.H.); (A.M.S.); (S.B.); (E.G.-E.)
- Escuela Superior de Ingeniería, Ciencia y Tecnología, International University of Valencia—VIU, 46002 Valencia, Spain
| | - Neus Torres Hernández
- Institute of Molecular Science, University of Valencia, 46980 Valencia, Spain; (N.T.H.); (A.M.S.); (S.B.); (E.G.-E.)
| | - Alejandro Martínez Serra
- Institute of Molecular Science, University of Valencia, 46980 Valencia, Spain; (N.T.H.); (A.M.S.); (S.B.); (E.G.-E.)
| | - Gonzalo Torrijos Jabón
- Departament de Bioquímica i Biologia Molecular, Facultat de Biologia, University of Valencia, 46100 Valencia, Spain; (G.T.J.); (M.l.d.O.)
| | - Salvador Blasco
- Institute of Molecular Science, University of Valencia, 46980 Valencia, Spain; (N.T.H.); (A.M.S.); (S.B.); (E.G.-E.)
| | - Cecilia Andreu
- Departament de Química Orgànica, Facultat de Farmàcia, University of Valencia, 46100 Valencia, Spain
| | - Marcel lí del Olmo
- Departament de Bioquímica i Biologia Molecular, Facultat de Biologia, University of Valencia, 46100 Valencia, Spain; (G.T.J.); (M.l.d.O.)
| | - Beatriz Jávega
- Laboratory of Cytomics, Joint Research Unit CIPF-UVEG, Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Valencia, 46010 Valencia, Spain; (B.J.); (J.-E.O.)
| | - José-Enrique O’Connor
- Laboratory of Cytomics, Joint Research Unit CIPF-UVEG, Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Valencia, 46010 Valencia, Spain; (B.J.); (J.-E.O.)
| | - Enrique García-España
- Institute of Molecular Science, University of Valencia, 46980 Valencia, Spain; (N.T.H.); (A.M.S.); (S.B.); (E.G.-E.)
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Chen MT, Li BZ, Zhang EP, Zheng Q. Potential roles of tumor microenvironment in gefitinib-resistant non-small cell lung cancer: A narrative review. Medicine (Baltimore) 2023; 102:e35086. [PMID: 37800802 PMCID: PMC10553124 DOI: 10.1097/md.0000000000035086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 08/15/2023] [Indexed: 10/07/2023] Open
Abstract
During the course of treating non-small cell lung cancer (NSCLC) with epithelial growth factor receptor (EGFR) mutant, gefitinib resistance (GR) is unavoidable. As the environment for tumor cells to grow and survive, tumor microenvironment (TME) can significantly affect therapeutic response and clinical outcomes, offering new opportunities for addressing GR. Dynamic changes within the TME were identified during the treatment of gefitinib, suggesting the close relationship between TME and GR. Various dynamic processes like angiogenesis, hypoxia-pathway activation, and immune evasion can be blocked so as to synergistically enhance the therapeutic effects of gefitinib or reverse GR. Besides, cellular components like macrophages can be reprogrammed for the same purpose. In this review, we summarized recently proposed therapeutic targets to provide an overview of the potential roles of TME in treating gefitinib-resistant NSCLC, and discussed the difficulty of applying these targets in cancer treatment.
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Affiliation(s)
- Mu-Tong Chen
- Department of Urology, The Third Affiliated Hospital of Shenzhen University (Luohu Hospital Group), Shenzhen, China
- Shantou University Medical College, Shantou, China
| | - Bai-Zhi Li
- Department of Urology, The Third Affiliated Hospital of Shenzhen University (Luohu Hospital Group), Shenzhen, China
- Shantou University Medical College, Shantou, China
| | - En-Pu Zhang
- Department of Urology, The Third Affiliated Hospital of Shenzhen University (Luohu Hospital Group), Shenzhen, China
| | - Qing Zheng
- Department of Urology, The Third Affiliated Hospital of Shenzhen University (Luohu Hospital Group), Shenzhen, China
- Shantou University Medical College, Shantou, China
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4
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Dong F, Song X, Yin X, Wang L. Efficient Construction of Tetrahydroquinazolines via HFIP‐Promoted [1,5]‐Hydride Transfer/6‐Endo‐Trig Cyclization. ChemistrySelect 2022. [DOI: 10.1002/slct.202203936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Affiliation(s)
- Fengying Dong
- College of Chemistry and Pharmaceutical Sciences Qingdao Agricultural University Qingdao 266109 Shandong P. R. China
| | - Xiaopei Song
- College of Chemistry and Pharmaceutical Sciences Qingdao Agricultural University Qingdao 266109 Shandong P. R. China
| | - Xiangcong Yin
- Hematology Diagnosis Laboratory The Affiliated Hospital of Qingdao University Qingdao 266003 Shandong P. R. China
| | - Liang Wang
- College of Chemistry and Pharmaceutical Sciences Qingdao Agricultural University Qingdao 266109 Shandong P. R. China
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Yavari I, Shirazi H, Sheikhi S, Taheri Z. Diastereoselective Synthesis of Spiro[benzopyrrolothiazole-thioazlactone] Derivatives from Erlenmeyer Thioazlactones and Azomethine Ylides. SYNTHESIS-STUTTGART 2022. [DOI: 10.1055/s-0041-1738398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
AbstractErlenmeyer thioazlactones reacted with 3-(2-oxo-2-arylethyl)benzo[d]thiazol-3-ium bromides in the presence of Et3N in MeCN to afford 1-aryloyl-2′-(benzylthio)-2-aryl-2,3a-dihydro-1H,5′H-spiro[benzo[d]pyrrolo[2,1-b]thiazole-3,4′-thiazol]-5′-ones. Formally, this transformation can be regarded as a Huisgen reaction of the exocyclic carbon–carbon double bond of the Erlenmeyer thioazlactones and azomethine ylides generated in situ. Evidence for the structure of a product was obtained from single-crystal X-ray analyses. The important feature of this reaction is the fact it forms four stereogenic centers, one of which is quaternary, with excellent selectivity.
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Taha AG, Elboray EE, Kobayashi Y, Furuta T, Abbas-Temirek HH, Aly MF. Nitro-Substituted Benzaldehydes in the Generation of Azomethine Ylides and Retro-1,3-Dipolar Cycloadditions. J Org Chem 2021; 86:547-558. [PMID: 33283511 DOI: 10.1021/acs.joc.0c02241] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
1,3-Dipolar cycloaddition of 2- and 3-nitrobenzaldehydes with 2-aminomethylpyridine and ethyl (2E)-2-cyano-3-(4-nitrophenyl)prop-2-enoate yielded endo-cycloadducts as the sole products under various reaction conditions. Fortuitously, 4-nitrobenzaldehyde behaved differently in three- and four-component cascades to produce a mixture of endo- and exo'-cycloadducts. This reaction is solvent- and temperature-dependent, and consequently, both the endo- and exo'-cycloadducts were synthesized in an excellent regio-, stereo-, and chemoselective fashion. Retro-1,3-dipolar cycloadditions of the endo-cycloadducts were conducted under mild reaction conditions, and the generated syn-dipoles were stereomutated into anti-dipoles which recycloadded with the dipolarophiles to provide the exo'-cycloadducts. Mechanistic studies were carried out to support the proposed mechanisms. Unprecedentedly, particular arylidene scaffolds participated as aldehyde or activated methylene precursors. Density functional theory calculations were performed to shed light on the importance of AcOH in the generation and isomerization of dipoles and to explain the high selectivity and the possibility of retro-cycloaddition.
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Affiliation(s)
- Ahmed G Taha
- Department of Chemistry, Faculty of Science, South Valley University, Qena 83523, Egypt
| | - Elghareeb E Elboray
- Department of Chemistry, Faculty of Science, South Valley University, Qena 83523, Egypt.,Department of Pharmaceutical Chemistry, Kyoto Pharmaceutical University, Yamashina-ku, Kyoto 607-8414, Japan
| | - Yusuke Kobayashi
- Department of Pharmaceutical Chemistry, Kyoto Pharmaceutical University, Yamashina-ku, Kyoto 607-8414, Japan
| | - Takumi Furuta
- Department of Pharmaceutical Chemistry, Kyoto Pharmaceutical University, Yamashina-ku, Kyoto 607-8414, Japan
| | | | - Moustafa F Aly
- Department of Chemistry, Faculty of Science, South Valley University, Qena 83523, Egypt
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Pulido I, Ollosi S, Aparisi S, Becker JH, Aliena-Valero A, Benet M, Rodríguez ML, López A, Tamayo-Torres E, Chuliá-Peris L, García-Cañaveras JC, Soucheray M, Dalheim AV, Salom JB, Qiu W, Kaja S, Fernández-Coronado JA, Alandes S, Alcácer J, Al-Shahrour F, Borgia JA, Juan O, Nishimura MI, Lahoz A, Carretero J, Shimamura T. Endothelin-1-Mediated Drug Resistance in EGFR-Mutant Non-Small Cell Lung Carcinoma. Cancer Res 2020; 80:4224-4232. [PMID: 32747363 PMCID: PMC7541638 DOI: 10.1158/0008-5472.can-20-0141] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 06/25/2020] [Accepted: 07/29/2020] [Indexed: 11/16/2022]
Abstract
Progression on therapy in non-small cell lung carcinoma (NSCLC) is often evaluated radiographically, however, image-based evaluation of said therapies may not distinguish disease progression due to intrinsic tumor drug resistance or inefficient tumor penetration of the drugs. Here we report that the inhibition of mutated EGFR promotes the secretion of a potent vasoconstrictor, endothelin-1 (EDN1), which continues to increase as the cells become resistant with a mesenchymal phenotype. As EDN1 and its receptor (EDNR) is linked to cancer progression, EDNR-antagonists have been evaluated in several clinical trials with disappointing results. These trials were based on a hypothesis that the EDN1-EDNR axis activates the MAPK-ERK signaling pathway that is vital to the cancer cell survival; the trials were not designed to evaluate the impact of tumor-derived EDN1 in modifying tumor microenvironment or contributing to drug resistance. Ectopic overexpression of EDN1 in cells with mutated EGFR resulted in poor drug delivery and retarded growth in vivo but not in vitro. Intratumoral injection of recombinant EDN significantly reduced blood flow and subsequent gefitinib accumulation in xenografted EGFR-mutant tumors. Furthermore, depletion of EDN1 or the use of endothelin receptor inhibitors bosentan and ambrisentan improved drug penetration into tumors and restored blood flow in tumor-associated vasculature. Correlatively, these results describe a simplistic endogenous yet previously unrealized resistance mechanism inherent to a subset of EGFR-mutant NSCLC to attenuate tyrosine kinase inhibitor delivery to the tumors by limiting drug-carrying blood flow and the drug concentration in tumors. SIGNIFICANCE: EDNR antagonists can be repurposed to improve drug delivery in VEGFA-secreting tumors, which normally respond to TKI treatment by secreting EDN1, promoting vasoconstriction, and limiting blood and drug delivery.
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Affiliation(s)
- Inés Pulido
- Department of Surgery, Division of Cardiothoracic Surgery, University of Illinois at Chicago, Chicago, Illinois
- University of Illinois Hospital & Health Sciences System Cancer Center, University of Illinois at Chicago, Chicago, Illinois
- Departament de Fisiologia, Facultat de Farmàcia, Universitat de València, Burjassot, Spain
| | - Stephen Ollosi
- Biochemistry and Molecular Biology Program, Loyola University Chicago, Stritch School of Medicine, Maywood, Illinois
| | - Salvador Aparisi
- Departament de Fisiologia, Facultat de Farmàcia, Universitat de València, Burjassot, Spain
| | - Jeffrey H Becker
- Department of Surgery, Division of Cardiothoracic Surgery, University of Illinois at Chicago, Chicago, Illinois
- University of Illinois Hospital & Health Sciences System Cancer Center, University of Illinois at Chicago, Chicago, Illinois
| | - Alicia Aliena-Valero
- Departament de Fisiologia, Facultat de Farmàcia, Universitat de València, Burjassot, Spain
- Unidad Mixta de Investigación Cerebrovascular, Instituto de Investigación Sanitaria La Fe, Valencia, Spain
| | - Marta Benet
- Biomarkers and Precision Medicine Unit and Analytic Unit, Instituto de Investigación Sanitaria La Fe, Valencia, Spain
| | - María L Rodríguez
- Departament de Fisiologia, Facultat de Farmàcia, Universitat de València, Burjassot, Spain
| | - Adrián López
- Biomarkers and Precision Medicine Unit and Analytic Unit, Instituto de Investigación Sanitaria La Fe, Valencia, Spain
| | - Eva Tamayo-Torres
- Departament de Fisiologia, Facultat de Farmàcia, Universitat de València, Burjassot, Spain
| | - Lourdes Chuliá-Peris
- Departament de Fisiologia, Facultat de Farmàcia, Universitat de València, Burjassot, Spain
| | - Juan Carlos García-Cañaveras
- Biomarkers and Precision Medicine Unit and Analytic Unit, Instituto de Investigación Sanitaria La Fe, Valencia, Spain
| | - Margaret Soucheray
- Department of Molecular Pharmacology and Neuroscience, Loyola University Chicago, Stritch School of Medicine, Maywood, Illinois
| | - Annika V Dalheim
- Department of Surgery, Loyola University Chicago, Stritch School of Medicine, Maywood, Illinois
| | - Juan B Salom
- Departament de Fisiologia, Facultat de Farmàcia, Universitat de València, Burjassot, Spain
- Unidad Mixta de Investigación Cerebrovascular, Instituto de Investigación Sanitaria La Fe, Valencia, Spain
| | - Wei Qiu
- Department of Surgery, Loyola University Chicago, Stritch School of Medicine, Maywood, Illinois
| | - Simon Kaja
- Department of Molecular Pharmacology and Neuroscience, Loyola University Chicago, Stritch School of Medicine, Maywood, Illinois
- Department of Ophthalmology, Loyola University Chicago, Stritch School of Medicine, Maywood, Illinois
| | | | - Sandra Alandes
- Department of Pathology, Hospital Quirónsalud, Valencia, Spain
| | - Javier Alcácer
- Department of Pathology, Hospital Quirónsalud, Valencia, Spain
| | - Fátima Al-Shahrour
- Bioinformatics Unit, Spanish National Cancer Research Centre (CNIO), Madrid, Spain
| | - Jeffrey A Borgia
- Department of Cell & Molecular Medicine, Rush University Medical Center, Chicago, Illinois
| | - Oscar Juan
- Biomarkers and Precision Medicine Unit and Analytic Unit, Instituto de Investigación Sanitaria La Fe, Valencia, Spain
| | - Michael I Nishimura
- Department of Surgery, Loyola University Chicago, Stritch School of Medicine, Maywood, Illinois
| | - Agustín Lahoz
- Biomarkers and Precision Medicine Unit and Analytic Unit, Instituto de Investigación Sanitaria La Fe, Valencia, Spain
| | - Julián Carretero
- Departament de Fisiologia, Facultat de Farmàcia, Universitat de València, Burjassot, Spain.
| | - Takeshi Shimamura
- Department of Surgery, Division of Cardiothoracic Surgery, University of Illinois at Chicago, Chicago, Illinois.
- University of Illinois Hospital & Health Sciences System Cancer Center, University of Illinois at Chicago, Chicago, Illinois
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Intagliata S, Helal MA, Materia L, Pittalà V, Salerno L, Marrazzo A, Cagnotto A, Salmona M, Modica MN, Romeo G. Synthesis and Molecular Modelling Studies of New 1,3-Diaryl-5-Oxo-Proline Derivatives as Endothelin Receptor Ligands. Molecules 2020; 25:molecules25081851. [PMID: 32316541 PMCID: PMC7221592 DOI: 10.3390/molecules25081851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 04/14/2020] [Accepted: 04/15/2020] [Indexed: 11/17/2022] Open
Abstract
The synthesis of seventeen new 1,3-diaryl-5-oxo-proline derivatives as endothelin receptor (ETR) ligands is described. The structural configuration of the new molecules was determined by analyzing selected signals in proton NMR spectra. In vitro binding assays of the human ETA and ETB receptors allowed us to identify compound 31h as a selective ETAR ligand. The molecular docking of the selected compounds and the ETA antagonist atrasentan in the ETAR homology model provided insight into the structural elements required for the affinity and the selectivity of the ETAR subtype.
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Affiliation(s)
- Sebastiano Intagliata
- Department of Drug Sciences, University of Catania, Viale A. Doria 6, 95125 Catania, Italy; (S.I.); (V.P.); (L.S.); (A.M.); (G.R.)
| | - Mohamed A. Helal
- University of Science and Technology, Biomedical Sciences Program, Zewail City of Science and Technology, October Gardens, 6th of October, Giza 12578, Egypt;
- Medicinal Chemistry Department, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt
| | - Luisa Materia
- Department of Drug Sciences, University of Catania, Viale A. Doria 6, 95125 Catania, Italy; (S.I.); (V.P.); (L.S.); (A.M.); (G.R.)
| | - Valeria Pittalà
- Department of Drug Sciences, University of Catania, Viale A. Doria 6, 95125 Catania, Italy; (S.I.); (V.P.); (L.S.); (A.M.); (G.R.)
| | - Loredana Salerno
- Department of Drug Sciences, University of Catania, Viale A. Doria 6, 95125 Catania, Italy; (S.I.); (V.P.); (L.S.); (A.M.); (G.R.)
| | - Agostino Marrazzo
- Department of Drug Sciences, University of Catania, Viale A. Doria 6, 95125 Catania, Italy; (S.I.); (V.P.); (L.S.); (A.M.); (G.R.)
| | - Alfredo Cagnotto
- Istituto di Ricerche Farmacologiche “Mario Negri”, IRCCS. Via Mario Negri, 2, 20156 Milano, Italy; (A.C.); (M.S.)
| | - Mario Salmona
- Istituto di Ricerche Farmacologiche “Mario Negri”, IRCCS. Via Mario Negri, 2, 20156 Milano, Italy; (A.C.); (M.S.)
| | - Maria N. Modica
- Department of Drug Sciences, University of Catania, Viale A. Doria 6, 95125 Catania, Italy; (S.I.); (V.P.); (L.S.); (A.M.); (G.R.)
- Correspondence: ; Tel.: +39-095-738-6061
| | - Giuseppe Romeo
- Department of Drug Sciences, University of Catania, Viale A. Doria 6, 95125 Catania, Italy; (S.I.); (V.P.); (L.S.); (A.M.); (G.R.)
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Abstract
Angiogenesis plays a fundamental role in tumor growth and progression. It is regulated by several growth factors, including vascular endothelial growth factor protein family (VEGF) and its receptors, which are probably the most important factors responsible for the development of new vessels. The VEGF family includes several members: VEGF-A, VEGF-B, VEGF-C, VEGF-D, VEGF-E, placental growth factor (PlGF), and their receptors VEGFR-1, VEGFR-2 and VEGFR-3. Other relevant factors are represented by angiopoietins, thrombospondin-1, and endothelins. However, since the therapeutic benefit associated with VEGF-targeted therapy is really complex, a better understanding of these pathways will lead to future advances in the use of these agents for clinic management of tumors. Here we present a review regarding the role of angiogenic factors in cholangiocarcinoma, which arise from cholangiocytes, the epithelial cells of bile ducts. They are rare and aggressive neoplasms with a poor prognosis and limited treatment options, classified as intrahepatic, perihilar, and distal cholangiocarcinoma based on their anatomical location. Therefore, the identification of specific signaling pathways or new tumor biomarkers is crucial in order to develop more effective anti-angiogenic therapies.
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Antermite D, Affron DP, Bull JA. Regio- and Stereoselective Palladium-Catalyzed C(sp3)–H Arylation of Pyrrolidines and Piperidines with C(3) Directing Groups. Org Lett 2018; 20:3948-3952. [DOI: 10.1021/acs.orglett.8b01521] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Daniele Antermite
- Department of Chemistry, Imperial College London, South Kensington, London SW7 2AZ, United Kingdom
| | - Dominic P. Affron
- Department of Chemistry, Imperial College London, South Kensington, London SW7 2AZ, United Kingdom
| | - James A. Bull
- Department of Chemistry, Imperial College London, South Kensington, London SW7 2AZ, United Kingdom
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11
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Moody TW, Ramos-Alvarez I, Moreno P, Mantey SA, Ridnour L, Wink D, Jensen RT. Endothelin causes transactivation of the EGFR and HER2 in non-small cell lung cancer cells. Peptides 2017; 90:90-99. [PMID: 28153500 PMCID: PMC5421360 DOI: 10.1016/j.peptides.2017.01.012] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Revised: 01/18/2017] [Accepted: 01/24/2017] [Indexed: 12/25/2022]
Abstract
Endothelin (ET)-1 is an important peptide in cancer progression stimulating cellular proliferation, tumor angiogenesis and metastasis. ET-1 binds with high affinity to the ETA receptor (R) and ETBR on cancer cells. High levels of tumor ET-1 and ETAR are associated with poor survival of lung cancer patients. Here the effects of ET-1 on epidermal growth factor (EGF)R and HER2 transactivation were investigated using non-small cell lung cancer (NSCLC) cells. ETAR mRNA was present in all 10 NSCLC cell lines examined. Addition of ET-1 to NCI-H838 or H1975 cells increased EGFR, HER2 and ERK tyrosine phosphorylation within 2min. The increase in EGFR and HER2 transactivation caused by ET-1 addition to NSCLC cells was inhibited by lapatinib (EGFR and HER2 tyrosine kinase inhibitor (TKI)), gefitinib (EGFR TKI), ZD4054 or BQ-123 (ETAR antagonist), GM6001 (matrix metalloprotease inhibitor), PP2 (Src inhibitor) or Tiron (superoxide scavenger). ET-1 addition to NSCLC cells increased cytosolic Ca2+ and reactive oxygen species. ET-1 increased NSCLC clonal growth, whereas BQ123, ZD4054, lapatinib or gefitinib inhibited proliferation. The results indicate that ET-1 may regulate NSCLC cellular proliferation in an EGFR- and HER2-dependent manner.
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Affiliation(s)
- Terry W Moody
- Department of Health and Human Services, National Cancer Institute, Center for Cancer Research, Office of the Director, Bethesda, MD 20892, United States.
| | - Irene Ramos-Alvarez
- National Institutes of Health, National Institute of Diabetes, Digestive and Kidney Disease, Digestive Diseases Branch, Bethesda, MD 20892, United States
| | - Paula Moreno
- National Institutes of Health, National Institute of Diabetes, Digestive and Kidney Disease, Digestive Diseases Branch, Bethesda, MD 20892, United States
| | - Samuel A Mantey
- National Institutes of Health, National Institute of Diabetes, Digestive and Kidney Disease, Digestive Diseases Branch, Bethesda, MD 20892, United States
| | - Lisa Ridnour
- National Cancer Institute, Cancer Inflammation Program, Frederick, MD 21702, United States
| | - David Wink
- National Cancer Institute, Cancer Inflammation Program, Frederick, MD 21702, United States
| | - Robert T Jensen
- National Institutes of Health, National Institute of Diabetes, Digestive and Kidney Disease, Digestive Diseases Branch, Bethesda, MD 20892, United States
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12
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González N, Prieto I, del Puerto-Nevado L, Portal-Nuñez S, Ardura JA, Corton M, Fernández-Fernández B, Aguilera O, Gomez-Guerrero C, Mas S, Moreno JA, Ruiz-Ortega M, Sanz AB, Sanchez-Niño MD, Rojo F, Vivanco F, Esbrit P, Ayuso C, Alvarez-Llamas G, Egido J, García-Foncillas J, Ortiz A. 2017 update on the relationship between diabetes and colorectal cancer: epidemiology, potential molecular mechanisms and therapeutic implications. Oncotarget 2017; 8:18456-18485. [PMID: 28060743 PMCID: PMC5392343 DOI: 10.18632/oncotarget.14472] [Citation(s) in RCA: 115] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Accepted: 12/26/2016] [Indexed: 02/06/2023] Open
Abstract
Worldwide deaths from diabetes mellitus (DM) and colorectal cancer increased by 90% and 57%, respectively, over the past 20 years. The risk of colorectal cancer was estimated to be 27% higher in patients with type 2 DM than in non-diabetic controls. However, there are potential confounders, information from lower income countries is scarce, across the globe there is no correlation between DM prevalence and colorectal cancer incidence and the association has evolved over time, suggesting the impact of additional environmental factors. The clinical relevance of these associations depends on understanding the mechanism involved. Although evidence is limited, insulin use has been associated with increased and metformin with decreased incidence of colorectal cancer. In addition, colorectal cancer shares some cellular and molecular pathways with diabetes target organ damage, exemplified by diabetic kidney disease. These include epithelial cell injury, activation of inflammation and Wnt/β-catenin pathways and iron homeostasis defects, among others. Indeed, some drugs have undergone clinical trials for both cancer and diabetic kidney disease. Genome-wide association studies have identified diabetes-associated genes (e.g. TCF7L2) that may also contribute to colorectal cancer. We review the epidemiological evidence, potential pathophysiological mechanisms and therapeutic implications of the association between DM and colorectal cancer. Further studies should clarify the worldwide association between DM and colorectal cancer, strengthen the biological plausibility of a cause-and-effect relationship through characterization of the molecular pathways involved, search for specific molecular signatures of colorectal cancer under diabetic conditions, and eventually explore DM-specific strategies to prevent or treat colorectal cancer.
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Affiliation(s)
- Nieves González
- Renal, Vascular and Diabetes Research Laboratory, IIS-Fundacion Jimenez Diaz-UAM, Spanish Biomedical Research Network in Diabetes and Associated Metabolic Disorders (CIBERDEM), Madrid, Spain
| | - Isabel Prieto
- Radiation Oncology, Oncohealth Institute, IIS-Fundacion Jimenez Diaz-UAM, Madrid, Spain
| | - Laura del Puerto-Nevado
- Translational Oncology Division, Oncohealth Institute, IIS-Fundacion Jimenez Diaz-UAM, Madrid, Spain
| | - Sergio Portal-Nuñez
- Bone and Mineral Metabolism laboratory, IIS-Fundacion Jimenez Diaz-UAM, Madrid, Spain
| | - Juan Antonio Ardura
- Bone and Mineral Metabolism laboratory, IIS-Fundacion Jimenez Diaz-UAM, Madrid, Spain
| | - Marta Corton
- Genetics, IIS-Fundacion Jimenez Diaz-UAM, Madrid, Spain
| | | | - Oscar Aguilera
- Translational Oncology Division, Oncohealth Institute, IIS-Fundacion Jimenez Diaz-UAM, Madrid, Spain
| | | | - Sebastián Mas
- Nephrology, IIS-Fundacion Jimenez Diaz-UAM, Madrid, Spain
| | | | | | - Ana Belen Sanz
- Nephrology, IIS-Fundacion Jimenez Diaz-UAM, Madrid, Spain
- REDINREN, Madrid, Spain
| | | | - Federico Rojo
- Pathology, IIS-Fundacion Jimenez Diaz-UAM, Madrid, Spain
| | | | - Pedro Esbrit
- Bone and Mineral Metabolism laboratory, IIS-Fundacion Jimenez Diaz-UAM, Madrid, Spain
| | - Carmen Ayuso
- Genetics, IIS-Fundacion Jimenez Diaz-UAM, Madrid, Spain
| | | | - Jesús Egido
- Renal, Vascular and Diabetes Research Laboratory, IIS-Fundacion Jimenez Diaz-UAM, Spanish Biomedical Research Network in Diabetes and Associated Metabolic Disorders (CIBERDEM), Madrid, Spain
- Nephrology, IIS-Fundacion Jimenez Diaz-UAM, Madrid, Spain
| | - Jesús García-Foncillas
- Translational Oncology Division, Oncohealth Institute, IIS-Fundacion Jimenez Diaz-UAM, Madrid, Spain
| | - Alberto Ortiz
- Nephrology, IIS-Fundacion Jimenez Diaz-UAM, Madrid, Spain
- REDINREN, Madrid, Spain
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13
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Boss C, Bolli MH, Gatfield J. From bosentan (Tracleer®) to macitentan (Opsumit®): The medicinal chemistry perspective. Bioorg Med Chem Lett 2016; 26:3381-94. [DOI: 10.1016/j.bmcl.2016.06.014] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Revised: 06/03/2016] [Accepted: 06/06/2016] [Indexed: 11/24/2022]
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14
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Aubert JD, Juillerat-Jeanneret L. Endothelin-Receptor Antagonists beyond Pulmonary Arterial Hypertension: Cancer and Fibrosis. J Med Chem 2016; 59:8168-88. [PMID: 27266371 DOI: 10.1021/acs.jmedchem.5b01781] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The endothelin axis and in particular the two endothelin receptors, ETA and ETB, are targets for therapeutic intervention in human diseases. Endothelin-receptor antagonists are in clinical use to treat pulmonary arterial hypertension and have been under clinical investigation for the treatment of several other diseases, such as systemic hypertension, cancer, vasospasm, and fibrogenic diseases. In this Perspective, we review the molecules that have been evaluated in human clinical trials for the treatment of pulmonary arterial hypertension, as well as other cardiovascular diseases, cancer, and fibrosis. We will also discuss the therapeutic consequences of receptor selectivity with regard to ETA-selective, ETB-selective, or dual ETA/ETB antagonists. We will also consider which chemical characteristics are relevant to clinical use and the properties of molecules necessary for efficacy in treating diseases against which known molecules displayed suboptimal efficacy.
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Affiliation(s)
- John-David Aubert
- Pneumology Division and Transplantation Center, Centre Hospitalier Universitaire Vaudois (CHUV) , CH1011 Lausanne, Switzerland
| | - Lucienne Juillerat-Jeanneret
- University Institute of Pathology and Transplantation Center, Centre Hospitalier Universitaire Vaudois (CHUV), and University of Lausanne (UNIL), CH1011 Lausanne, Switzerland
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15
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Vinay R, KusumDevi V. Potential of targeted drug delivery system for the treatment of bone metastasis. Drug Deliv 2014; 23:21-9. [PMID: 24839990 DOI: 10.3109/10717544.2014.913325] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Bone metastasis is a devastating complication of cancer that requires an immediate attention. Although our understanding of the metastatic process has improved over the years, yet a number of questions still remain unanswered, and more research is required for complete understanding of the skeletal consequences of metastasis. Furthermore, as no effective treatments are available for some of the most common skeleton disorders such as arthritis, osteoarthritis, osteosarcoma and metastatic bone cancer, there is an urgent need to develop new drugs and drug delivery systems for safe and efficient clinical treatments. Hence this article describes the potential of targeted delivery platforms aimed specifically at bone metastasized tumors. The review gives a brief understanding of the proposed mechanisms of metastasis and focuses primarily on the targeting moieties such as bisphosphonates, which represent the current gold standard in bone metastasis therapies. Special focus has been given to the targeted nanoparticulate systems for treating bone metastasis and its future. Also highlighted are some of the therapeutic targets that can be exploited for designing therapies for bone metastasis. Some of the patented molecules for bone metastasis prevention and treatment have also been discussed. Recently proposed HIFU-CHEM, which utilizes High Intensity Focused ultrasound (HIFU) guided by MRI in combination with temperature-sensitive nanomedicines has also been briefed. The study has been concluded with a focus on the innovations requiring an immediate attention that could improve the treatment modality of bone metastasis.
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Affiliation(s)
- Raichur Vinay
- a Department of Pharmaceutics , Al-Ameen College of Pharmacy , Bangalore , Karnataka , India
| | - V KusumDevi
- a Department of Pharmaceutics , Al-Ameen College of Pharmacy , Bangalore , Karnataka , India
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16
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Younis IR, George DJ, McManus TJ, Hurwitz H, Creel P, Armstrong AJ, Yu JJ, Bacon K, Hobbs G, Peer CJ, Petros WP. Clinical pharmacology of an atrasentan and docetaxel regimen in men with hormone-refractory prostate cancer. Cancer Chemother Pharmacol 2014; 73:991-7. [PMID: 24619498 DOI: 10.1007/s00280-014-2432-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Accepted: 02/27/2014] [Indexed: 11/29/2022]
Abstract
PURPOSE This study was conducted to evaluate potential pharmacokinetic interactions between docetaxel and atrasentan as part of a phase I/II clinical trial. METHODS Patients with prostate cancer were treated with intravenous docetaxel (60-75 mg/m(2)) every 3 weeks and oral atrasentan (10 mg) daily starting on day 3 of cycle 1 and then given continuously. The pharmacokinetics of both drugs were evaluated individually (cycle 1, day 1 for docetaxel; day 21 for atrasentan) and in combination (cycle 2, day 1 for both drugs). Pharmacogenomics of alpha-1-acid glycoprotein (AAG) were also explored. RESULTS Paired pharmacokinetic data sets for both drugs were evaluable in 21 patients. Atrasentan was rapidly absorbed and plasma concentrations varied over a fourfold range at steady state within a typical patient. The median apparent oral clearance of atrasentan was 17.4 L/h in cycle 1 and was not affected by docetaxel administration (p = 0.9). Median systemic clearance of docetaxel was 51.1 L/h on the first cycle and significantly slower (p = 0.01) compared with that obtained during co-administration of atrasentan, 61.6 L/h. Docetaxel systemic clearance in cycle 1 was 70.0 L/h in patients homozygous for a variant allele in AAG compared with 44.5 L/h in those with at least one wild-type allele (p = 0.03). CONCLUSION Genetic polymorphism in AAG may explain some inter-patient variability in docetaxel pharmacokinetics. The systemic clearance of docetaxel is increased by approximately 21 % when given concomitantly with atrasentan; however, atrasentan pharmacokinetics does not appear to be influenced by docetaxel administration.
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Affiliation(s)
- Islam R Younis
- Mary Babb Randolph (MBR) Cancer Center, West Virginia University, PO Box 9300, Morgantown, WV, 26506, USA
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17
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Kwiatkowski J, Lu Y. Highly Enantioselective Preparation of Fluorinated Phosphonates by Michael Addition of α-Fluoro-β-ketophosphonates to Nitroalkenes. ASIAN J ORG CHEM 2013. [DOI: 10.1002/ajoc.201300211] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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18
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Chaulagain MR, Felten AE, Gilbert K, Aron ZD. Diastereo- and Enantioselective Three-Component Coupling Approach to Highly Substituted Pyrrolidines. J Org Chem 2013; 78:9471-6. [DOI: 10.1021/jo401015y] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mani Raj Chaulagain
- Department
of Chemistry, Indiana University, 800 E. Kirkwood Avenue, Bloomington, Indiana 47405-7102, United States
| | - Albert E. Felten
- Department
of Chemistry, Indiana University, 800 E. Kirkwood Avenue, Bloomington, Indiana 47405-7102, United States
| | - Kevin Gilbert
- Department
of Chemistry, Indiana University, 800 E. Kirkwood Avenue, Bloomington, Indiana 47405-7102, United States
| | - Zachary D. Aron
- Department
of Chemistry, Indiana University, 800 E. Kirkwood Avenue, Bloomington, Indiana 47405-7102, United States
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19
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Bepler G, Williams C, Schell MJ, Chen W, Zheng Z, Simon G, Gadgeel S, Zhao X, Schreiber F, Brahmer J, Chiappori A, Tanvetyanon T, Pinder-Schenck M, Gray J, Haura E, Antonia S, Fischer JR. Randomized international phase III trial of ERCC1 and RRM1 expression-based chemotherapy versus gemcitabine/carboplatin in advanced non-small-cell lung cancer. J Clin Oncol 2013; 31:2404-12. [PMID: 23690416 DOI: 10.1200/jco.2012.46.9783] [Citation(s) in RCA: 119] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
PURPOSE We assessed whether chemotherapy selection based on in situ ERCC1 and RRM1 protein levels would improve survival in patients with advanced non-small-cell lung cancer (NSCLC). PATIENTS AND METHODS Eligible patients were randomly assigned 2:1 to the trial's experimental arm, which consisted of gemcitabine/carboplatin if RRM1 and ERCC1 were low, docetaxel/carboplatin if RRM1 was high and ERCC1 was low, gemcitabine/docetaxel if RRM1 was low and ERCC1 was high, and docetaxel/vinorelbine if both were high. In the control arm, patients received gemcitabine/carboplatin. The trial was powered for a 32% improvement in 6-month progression-free survival (PFS). RESULTS Of 331 patients registered, 275 were eligible. The median number of cycles given was four in both arms. A tumor rebiopsy specifically for expression analysis was required in 17% of patients. The median time from informed consent to expression analysis was 11 days. We found no statistically significant differences between the experimental arm and the control arm in PFS (6.1 months v 6.9 months) or overall survival (11.0 months v 11.3 months). A subset analysis revealed that patients with low levels for both proteins who received the same treatment in both treatment arms had a statistically better PFS (P = .02) in the control arm (8.1 months) compared with the experimental arm (5.0 months). CONCLUSION This demonstrates that protein expression analysis for therapeutic decision making is feasible in newly diagnosed patients with advanced-stage NSCLC. A tumor rebiopsy is safe, required in 17%, and acceptable to 89% (47 of 53) of patients.
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20
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Kalles V, Zografos GC, Provatopoulou X, Kalogera E, Liakou P, Georgiou G, Sagkriotis A, Nonni A, Gounaris A. Circulating levels of endothelin-1 (ET-1) and its precursor (Big ET-1) in breast cancer early diagnosis. Tumour Biol 2012; 33:1231-6. [DOI: 10.1007/s13277-012-0371-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2011] [Accepted: 02/23/2012] [Indexed: 10/28/2022] Open
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Petrillo M, Scambia G, Ferrandina G. Novel targets for VEGF-independent anti-angiogenic drugs. Expert Opin Investig Drugs 2012; 21:451-72. [PMID: 22339615 DOI: 10.1517/13543784.2012.661715] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
INTRODUCTION In the last decades, the active research in the field of tumor angiogenesis led to the development of a class of agents providing an effective inhibition of neovessels formation through the blockade of VEGF-related pathways. More recently, the identification of several non-VEGF factors such as PDGF, FGF, HGF, angiopoietins, ALK1/endoglin, endothelis and ephrins involved in tumor angiogenesis have emphasized the need to develop agents targeting multiple pro-angiogenic pathways. AREAS COVERED This review aimed at summarizing the role of non-VEGF molecular pathways in targeting tumor angiogenesis. Preclinical and clinical data for investigational agents against non-VEGF targets have been reviewed emphasizing the role of combined inhibition strategies. EXPERT OPINION Besides the successful development of drugs providing a specific VEGF blockade, novel agents targeting alternative angiogenesis-related pathways are being tested. Although it seems that the potential clinical usefulness of these novel compounds have been not yet fully investigated, sunitinib, sorafenib, pazopanib and other multikinase inhibitors have certainly displayed encouraging results. A more in-depth clarification of anti-angiogenic agents is still needed, in order to design the best clinical setting and schedule for target-based agents and possibly anticipate potential tools to overcome the emerging issue of anti-angiogenic drug resistance.
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Affiliation(s)
- Marco Petrillo
- Catholic University of the Sacred Heart, Gynecologic Oncology Unit, Department of Oncology, Campobasso, Italy
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22
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Speck-Planche A, Kleandrova VV, Luan F, Cordeiro MND. Multi-target drug discovery in anti-cancer therapy: Fragment-based approach toward the design of potent and versatile anti-prostate cancer agents. Bioorg Med Chem 2011; 19:6239-44. [DOI: 10.1016/j.bmc.2011.09.015] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2011] [Revised: 07/24/2011] [Accepted: 09/08/2011] [Indexed: 11/25/2022]
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23
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Bagnato A, Loizidou M, Pflug BR, Curwen J, Growcott J. Role of the endothelin axis and its antagonists in the treatment of cancer. Br J Pharmacol 2011; 163:220-33. [PMID: 21232046 DOI: 10.1111/j.1476-5381.2011.01217.x] [Citation(s) in RCA: 88] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
The endothelins (ET) are a group of proteins that act through G-protein coupled receptors. Endothelin-1 (ET-1) was initially identified as a potent vasoconstrictor and dysregulation of the ET axis contributes to pathological processes responsible for cardiovascular disease states. More recently, the ET axis, in particular ET-1 acting through the endothelin A receptor (ET(A) ), has been implicated in the development of several cancers through activation of pathways involved in cell proliferation, migration, invasion, epithelial-mesenchymal transition, osteogenesis and angiogenesis. The endothelin B receptor (ET(B) ) may counter tumour progression by promoting apoptosis and clearing ET-1; however, it has recently been implicated in the development of some tumour types including melanomas and oligodendrogliomas. Here, we review emerging preclinical and clinical data outlining the role of the ET axis in cancer, and its antagonism as an attractive and challenging approach to improve clinical cancer management. Clinical data of ET(A) antagonists in patients with prostate cancer are encouraging and provide promise for new ET(A) antagonist-based treatment strategies. Given the unexpected opportunities to affect pleiotrophic tumorigenic signals by targeting ET(A)-mediated pathways in a number of cancers, the evaluation of ET-targeted therapy in cancer warrants further investigation.
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Affiliation(s)
- A Bagnato
- Molecular Pathology Laboratory 'A', Regina Elena National Cancer Institute, Rome, Italy
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24
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Simon GR, Schell MJ, Begum M, Kim J, Chiappori A, Haura E, Antonia S, Bepler G. Preliminary indication of survival benefit from ERCC1 and RRM1-tailored chemotherapy in patients with advanced nonsmall cell lung cancer: evidence from an individual patient analysis. Cancer 2011; 118:2525-31. [PMID: 22028294 DOI: 10.1002/cncr.26522] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2011] [Revised: 07/22/2011] [Accepted: 08/04/2011] [Indexed: 11/09/2022]
Abstract
BACKGROUND Excision repair cross complementing 1 (ERCC1) and ribonucleotide reductase M1 (RRM1) are molecular determinants that predict sensitivity or resistance to platinum agents and gemcitabine, respectively. Tailored therapy using these molecular determinants suggested patient benefit in a previously reported phase 2 trial. Here, we report an individual patient analysis of prospectively accrued patients who were treated with the "personalized therapy" approach versus other "standard," noncustomized approaches. METHODS Patients who had nonsmall cell lung cancer (NSCLC) with extranodal metastatic disease and an Eastern Cooperative Oncology Group performance status of 0/1 were accrued to 4 phase 2 clinical trials conducted at the H. Lee Moffitt Cancer Center: Trial A (first-line carboplatin/gemcitabine followed by docetaxel), Trial B (docetaxel and gefitinib in patients aged ≥70 years), Trial C (combination therapy with carboplatin/paclitaxel/atrasentan), and Trial D (personalized therapy based on ERCC1 and RRM1 expression). Patients with low RRM1/low ERCC1 expression received gemcitabine/carboplatin, patients with low RRM1/high ERCC1 expression received gemcitabine/docetaxel, patients with high RRM1/low ERCC1 expression received docetaxel/carboplatin, and patients with high RRM1/high ERCC1 expression received vinorelbine/docetaxel. Patients who were treated on Trials A, B, and C were pooled together and analyzed as the "standard therapy" group. Patients accrued to Trial D were called the "personalized therapy" group. Individual patient data were updated as of February 8, 2011. Overall survival (OS) and progression-free survival (PFS) were estimated using the Kaplan-Meier method. RESULTS There were statistically significant improvements between the personalized therapy group versus the standard therapy group in response (44% vs 22%; P = .002), OS (median: 13.3 months vs 8.9 months; P = .016), and PFS (median: 7.0 months vs 4.3 months; P = .03). CONCLUSIONS The results from individual patient analyses suggest that ERCC1 and RRM1/tailored selection of first-line therapy improved survival over standard treatment-selection approaches.
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Affiliation(s)
- George R Simon
- Division of Hematology/Oncology, Department of Medicine, Medical University of South Carolina, Charleston, South Carolina 29425-6350, USA.
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Phase 1/2 study of atrasentan combined with pegylated liposomal doxorubicin in platinum-resistant recurrent ovarian cancer. Neoplasia 2011; 12:941-5. [PMID: 21076619 DOI: 10.1593/neo.10582] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2010] [Revised: 08/25/2010] [Accepted: 08/26/2010] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Ovarian cancer overexpresses ET-1, and in vitro studies have shown that ET-1 confers resistance to anthracycline-containing chemotherapy. Atrasentan has been developed as an oral selective endothelin-A receptor antagonist. The objective of the study was to investigate the feasibility and toxicity of adding increasing doses of atrasentan (to a maximum of 10 mg/d) and liposomal doxorubicin in patients with progressive ovarian cancer, refractory for platinum and paclitaxel. METHODS Patients with platinum-resistant ovarian cancer were treated with pegylated liposomal doxorubicin (PLD) 50 mg/m(2) on day 1 (and repeated every 4 weeks) in combination with escalating doses of atrasentan once daily. The starting dose was 2.5 mg and escalated in cohorts of three patients from 5 to 10 mg. RESULTS Twenty-six patients (mean age = 60 years, range = 42-74 years) were treated at the three dose levels. Atrasentan could be safely administered in combination at a dose of 10 mg. All patients were evaluable for toxicity, and 19 patients, included in the phase 2 period, were evaluable for response. Adverse events included nausea, vomiting, mucositis, skin toxicity, and rhinitis. Clinical cardiac toxicity, intensively monitored, was not observed, although two patients had a decrease in cardiac ejection fraction. Three objective responses were observed and another six patients had stable disease with a median time to progression of 14 weeks and an overall survival of 13.1 months. CONCLUSIONS The addition of atrasentan to standard dose PLD in platinum-resistant ovarian cancer is feasible with some suggestion of prolonged survival.
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Chaulagain MR, Aron ZD. A Diastereoselective Three-Component Coupling Approach to Highly Substituted Pyrrolidines. J Org Chem 2010; 75:8271-4. [DOI: 10.1021/jo101304q] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mani Raj Chaulagain
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405-7102, United States
| | - Zachary D. Aron
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405-7102, United States
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Abstract
Most patients with bone metastases experience skeletal complications, resulting in significant morbidity and increased risk of death. Although the use of bisphosphonates is a well-established form of supportive care treatment for bone metastasis, complications arising from long-term use require schedule optimization and a search for alternative strategies. Moreover, the scope of use of bone-targeted agents in oncology has widened to include therapy-induced bone loss and antitumor effects. Indeed, bone provides a permissive niche to tumor growth, and targeting the interactions within the bone microenvironment is a promising antitumor strategy. In addition, the pathogenesis of cancer-related bone disease has been partially unraveled with a focus on the anabolic bone compartment, and the rapid bench-to-bedside translation has resulted in the identification of novel therapeutically amenable targets. This review focuses on studies optimizing bisphosphonate use and recent clinical data on denosumab in the treatment of bone disease. We also provide data on trials that have evaluated the antitumor effects of bisphosphonates and summarize the most recent discoveries on the role of the bone niche in cancer development, with insights into the preclinical rationale and clinical assessment of novel antiresorptive and anabolic bone-targeted agents.
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Affiliation(s)
- Sonia Vallet
- Department of Medicine, Massachusetts General Hospital Cancer Center, Harvard Medical School, Boston, MA, USA
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Russo A, Bronte G, Rizzo S, Fanale D, Di Gaudio F, Gebbia N, Bazan V. Anti-endothelin drugs in solid tumors. Expert Opin Emerg Drugs 2010; 15:27-40. [PMID: 20102289 DOI: 10.1517/14728210903571667] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
IMPORTANCE OF THE FIELD The endothelin (ET) axis, which includes the biological functions of ETs and their receptors, has played a physiological role in normal tissue, acting as a modulator of vasomotor tone, tissue differentiation and development, cell proliferation and hormone production. Interestingly, it also functions in the growth and progression of various tumors. Several researchers have identified the blockade of the ET-1 receptor as a promising therapeutic approach. AREAS COVERED IN THIS REVIEW The clinical investigation of an orally bioavailable ET antagonist, atrasentan, in prostate cancer, is encouraging. In this neoplasia, it has shown antitumor activity, bone metastasis control and amelioration of cancer-related pain but improvement in time to progression and overall survival has still not been demonstrated. The clinical trials of other ET antagonists are reported. Literature research was performed by Pubmed and Pharmaprojects. WHAT THE READER WILL GAIN A comprehensive view about the use of atrasentan in the treatment of castration-resistant prostate cancer (CRPC) is provided together with the scientific rationale based on the function of ET and its receptor in various cancer development mechanisms. TAKE HOME MESSAGE Atrasentan seems to be active in CRPC, although strong scientific evidence is still to be found. Interesting clinical findings regard zibotentan.
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Affiliation(s)
- Antonio Russo
- Università di Palermo, Section of Medical Oncology, Department of Surgical and Oncological Sciences, Via del Vespro 129, 90127 Palermo, Italy.
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Management of dyspnea in advanced lung cancer: recent data and emerging concepts. Curr Opin Support Palliat Care 2010; 4:85-91. [DOI: 10.1097/spc.0b013e328339920d] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Yang KM, Russell J, Lupu ME, Cho H, Li XF, Koutcher JA, Ling CC. Atrasentan (ABT-627) enhances perfusion and reduces hypoxia in a human tumor xenograft model. Cancer Biol Ther 2009; 8:1940-6. [PMID: 19717985 DOI: 10.4161/cbt.8.20.9595] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
The endothelin-1 antagonist, Atrasentan (ABT-627) was used to modify perfusion in the human tumor xenograft model, HT29, growing in nude mice. Atrasentan produced a significant increase in perfusion, as measured in vivo by Gd-DTPA DCE-MRI. Changes in tumor hypoxia were assessed by comparing the binding of two hypoxia tracers, pimonidazole and EF5 given before and after Atrasentan administration. In vehicle-treated controls, the distribution of EF5 and pimonidazole was very similar. However, Atrasentan treatment was associated with decreased uptake of the second hypoxia tracer (EF5), relative to the first (pimonidazole). Although Atrasentan had no independent effect on the growth of HT29 tumors, Atrasentan combined with 20 Gy radiation led to a modest but significant increase in tumor growth delay compared to radiation alone.
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Affiliation(s)
- Kwang Mo Yang
- Department of Medical Physics, Memorial Sloan-Kettering Cancer Center, New York, NY, USA
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Aubert JD, Juillerat-Jeanneret L. Therapeutic potential of endothelin receptor modulators: lessons from human clinical trials. Expert Opin Ther Targets 2009; 13:1069-84. [PMID: 19659448 DOI: 10.1517/14728220903074570] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The endothelin system, and in particular endothelin receptors, are targets for therapeutic intervention in human diseases. Endothelin receptor antagonists have reached clinical use for treating pulmonary arterial hypertension, and are under clinical investigation for several other diseases, such as cancer, vasospasm or fibrogenic diseases. We review the molecules that have been evaluated in the main clinical trials, from the point of view of receptor selectivity and of their chemical characteristics which were important for efficacy in pulmonary hypertension. We will also discuss future use of antagonists to endothelin receptor(s) in several human diseases and what should be the necessary properties of the future molecules for efficacy in diseases where the presently tested molecules displayed suboptimal efficacy.
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Affiliation(s)
- John-David Aubert
- University Institute of Pathology, University of Lausanne (UNIL), Centre Hospitalier Universitaire Vaudois (CHUV), Lausanne, Switzerland
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Binder C, Hagemann T, Sperling S, Schulz M, Pukrop T, Grimshaw MJ, Ehrenreich H. Stromal endothelin B receptor-deficiency inhibits breast cancer growth and metastasis. Mol Cancer Ther 2009; 8:2452-60. [PMID: 19671740 DOI: 10.1158/1535-7163.mct-09-0032] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The endothelin (ET) axis, often deregulated in cancers, is a promising target for anticancer strategies. Whereas previous investigations have focused mostly on ET action in malignant cells, we chose a model allowing separate assessment of the effects of ETs and their receptors ET(A)R and ET(B)R in the tumor cells and the stromal compartment, which is increasingly recognized as a key player in cancer progression. In homozygous spotting lethal rats (sl/sl), a model of constitutive ET(B)R deficiency, we showed significant reduction of growth and metastasis of MAT B III rat mammary adenocarcinoma cells overexpressing ET(A)R and ET-1 but negative for ET(B)R. Lack of stromal ET(B)R expression did not influence angiogenesis. However, it was correlated with diminished infiltration by tumor-associated macrophages and with reduced production of tumor necrosis factor-alpha, both known as powerful promoters of tumor progression. These effects were almost completely abolished in transgenic sl/sl rats, wherein ET(B)R function is restored by expression of an intact ET(B)R transgene. This shows that tumor growth and metastasis are critically dependent on ET(B)R function in cells of the microenvironment and suggests that successful ETR antagonist therapy should also target the stromal component of ET signaling
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Affiliation(s)
- Claudia Binder
- Department of Hematology/Oncology, Georg-August-University, D-37099 Goettingen, Germany.
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Fava G, DeMorrow S, Gaudio E, Franchitto A, Onori P, Carpino G, Glaser S, Francis H, Coufal M, Marucci L, Alvaro D, Marzioni M, Horst T, Mancinelli R, Benedetti A, Alpini G. Endothelin inhibits cholangiocarcinoma growth by a decrease in the vascular endothelial growth factor expression. Liver Int 2009; 29:1031-42. [PMID: 19291182 PMCID: PMC2706939 DOI: 10.1111/j.1478-3231.2009.01997.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Endothelins (ET-1, ET-2, ET-3) are peptides with vasoactive properties interacting with ET(A) and ET(B) receptors. ET-1 inhibits secretin-stimulated ductal secretion (hallmark of cholangiocyte growth) of cholestatic rats by interaction with ET receptors. AIM The aims of the studies were to evaluate (i) the effect of ET-1 on cholangiocarcinoma growth in Mz-ChA-1 cells and nude mice and (ii) whether ET-1 regulation of cholangiocarcinoma growth is associated with changes in the expression of vascular endothelial growth factor-A (VEGF-A), VEGF-C, VEGF receptor-2 (VEGFR-2) and VEGFR-3. METHODS We determined the expression of ET(A) and ET(B) receptors on normal and malignant (Mz-ChA-1) cholangiocytes and human cholangiocarcinoma tissue and the effect of ET-1 on the proliferation and expression of VEGF-A, VEGF-C (regulators of tumour angiogenesis) and its receptors, VEGFR-2 and VEGFR-3, in Mz-ChA-1 cells. In vivo, Mz-ChA-1 cells were injected into the flanks of athymic mice and injections of ET-1 or saline into the tumours were performed daily. The effect of ET-1 on tumour size, cell proliferation, apoptosis, collagen quantity and the expression of VEGF-A and VEGF-C and VEGFR-2 and VEGFR-3 were measured after 73 days. RESULTS Higher expression of ET(A) and ET(B) was observed in malignant compared with normal cholangiocytes. ET-1 inhibited proliferation and VEGF-A, VEGF-C, VEGFR-2 and VEGFR-3 expression of Mz-ChA-1 cells. Chronic ET-1 treatment decreased tumour volume, tumour cell proliferation and VEGF-A and VEGF-C expression but increased apoptosis and collagen tissue deposition compared with controls. CONCLUSIONS Modulation of VEGF-A and VEGF-C (by ET-1) may be important for managing cholangiocarcinoma growth.
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Affiliation(s)
- Giammarco Fava
- Department of Gastroenterology, Universita' Politecnica delle Marche, Ancona, Italy
| | - Sharon DeMorrow
- Scott & White Digestive Disease Research Center, Scott & White, Temple, TX, USA, Department of Medicine, Division Gastroenterology, Texas A&M Health Science Center, College of Medicine, College Station, TX, USA
| | - Eugenio Gaudio
- Department of Human Anatomy, Università of Rome ‘La Sapienza’, Rome, Italy
| | - Antonio Franchitto
- Department of Human Anatomy, Università of Rome ‘La Sapienza’, Rome, Italy
| | - Paolo Onori
- Department of Experimental Medicine, University of L'Aquila, L'Aquila, Italy
| | - Guido Carpino
- Department of Health Science, IUSM University of Rome, Rome, Italy
| | - Shannon Glaser
- Scott & White Digestive Disease Research Center, Scott & White, Temple, TX, USA, Department of Medicine, Division Gastroenterology, Texas A&M Health Science Center, College of Medicine, College Station, TX, USA
| | - Heather Francis
- Scott & White Digestive Disease Research Center, Scott & White, Temple, TX, USA, Department of Medicine, Division Gastroenterology, Texas A&M Health Science Center, College of Medicine, College Station, TX, USA, Division of Research and Education, Scott & White, Temple, TX, USA
| | - Monique Coufal
- Division of Research and Education, Scott & White, Temple, TX, USA
| | - Luca Marucci
- Department of Gastroenterology, Universita' Politecnica delle Marche, Ancona, Italy
| | - Domenico Alvaro
- Department of Gastroenterology, Polo Pontino, University of Rome ‘La Sapienza’, Rome, Italy
| | - Marco Marzioni
- Department of Gastroenterology, Universita' Politecnica delle Marche, Ancona, Italy
| | - Trenton Horst
- Department of Medicine, Division Gastroenterology, Texas A&M Health Science Center, College of Medicine, College Station, TX, USA
| | - Romina Mancinelli
- Department of Medicine, Division Gastroenterology, Texas A&M Health Science Center, College of Medicine, College Station, TX, USA, Department of Human Anatomy, Università of Rome ‘La Sapienza’, Rome, Italy
| | - Antonio Benedetti
- Department of Gastroenterology, Universita' Politecnica delle Marche, Ancona, Italy
| | - Gianfranco Alpini
- Scott & White Digestive Disease Research Center, Scott & White, Temple, TX, USA, Department of Medicine, Division Gastroenterology, Texas A&M Health Science Center, College of Medicine, College Station, TX, USA, Central Texas Veterans Health Care System, Temple, TX, USA, Systems Biology and Translational Medicine, Texas A&M Health Science Center, College of Medicine, College Station, TX, USA
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ETA receptor blockade with atrasentan prevents hypertension with the multitargeted tyrosine kinase inhibitor ABT-869 in telemetry-instrumented rats. J Cardiovasc Pharmacol 2009; 53:173-8. [PMID: 19188829 DOI: 10.1097/fjc.0b013e3181993493] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
ABT-869 is a novel multitargeted inhibitor of vascular endothelial growth factor and platelet-derived growth factor receptor tyrosine kinases (RTKs) with potent antiangiogenic properties that slow tumor progression. Vascular endothelial growth factor receptor blockade has been shown to produce hypertension. Atrasentan is a potent and selective endothelin (ETA) receptor antagonist that lowers blood pressure and affects tumor growth. To assess the utility of ETA receptor blockade in controlling hypertension with RTK inhibition, we evaluated the ability of atrasentan to block hypertension with ABT-869 in conscious, telemetry-instrumented rats. Changes in mean arterial pressure (MAP) and heart rate (HR) were evaluated using mean values and the area under the curve (AUC). Atrasentan (0.5, 1.5, and 5.0 mg kg(-1) d(-1) for 5 days) elicited dose-dependent decreases in MAP-AUC (-16.7 +/- 1.3, -20.94 +/- 3.68, and -30.12 +/- 3.57 mm Hg x day, respectively) compared with vehicle. ABT-869 (1, 3, 10, 30 mg kg(-1) d(-1) for 5 days) increased MAP compared with vehicle (MAP-AUC values of -5.52 +/- 3.75, 12.7 +/- 8.4, 37.5 +/- 4.4, and 63.8 +/- 3.3 mm Hg x day, respectively). Pretreatment with atrasentan (5 mg/kg for 5 days) prevented and abolished the hypertensive effects of ABT-869. Thus, ETA receptor blockade effectively alleviated hypertension with RTK inhibition and may serve a dual therapeutic role by preventing hypertension and slowing tumor progression.
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35
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Karp DD, Paz-Ares LG, Novello S, Haluska P, Garland L, Cardenal F, Blakely LJ, Eisenberg PD, Langer CJ, Blumenschein G, Johnson FM, Green S, Gualberto A. Phase II study of the anti-insulin-like growth factor type 1 receptor antibody CP-751,871 in combination with paclitaxel and carboplatin in previously untreated, locally advanced, or metastatic non-small-cell lung cancer. J Clin Oncol 2009; 27:2516-22. [PMID: 19380445 DOI: 10.1200/jco.2008.19.9331] [Citation(s) in RCA: 213] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
PURPOSE We conducted a phase II study of combination of the anti-insulin-like growth factor 1 receptor antibody CP-751,871 with paclitaxel and carboplatin (PCI) in advanced treatment-naïve non-small-cell lung cancer (NSCLC). PATIENTS AND METHODS Patients were randomly assigned (2:1) to paclitaxel 200 mg/m(2), carboplatin (area under the plasma concentration-time curve of 6), and CP-751,871 10 to 20 mg/kg (PCI(10), PCI(20)) or paclitaxel and carboplatin alone (PC) every 3 weeks for up to six cycles. PCI(10-20) patients could continue CP-751,871 (figitumumab) treatment after chemotherapy discontinuation. Patients treated with PC experiencing disease progression were eligible to receive CP-751,871 at investigator's discretion. An additional nonrandomized single-arm cohort of 30 patients with nonadenocarcinoma tumor histology receiving PCI(20) was enrolled on completion of the randomized study. RESULTS A total of 156 patients were enrolled onto the randomized portion of the study. Safety and efficacy information are available for 151 patients (98 patients treated with PCI and 53 patients treated with PC). Forty-eight patients treated with PCI received PCI(10) and 50 patients received PCI(20) in two sequential stages. Twenty of 53 patients treated with PC received CP-751,871 after disease progression. PCI was well tolerated. Fifty-four percent of patients treated with PCI and 42% of patients treated with PC had objective responses. Sixteen of 23 patients assessable for efficacy in the nonrandomized single-arm extension cohort also responded to treatment. Of note, 14 of 18 randomly assigned and 11 of 14 nonrandomly assigned patients treated with PCI with squamous cell carcinoma histology had response to treatment, including nine objective responses in bulky disease. Responses were also observed in two patients with squamous histology receiving CP-751,871 on PC discontinuation. PCI(20)/PC hazard ratio for progression-free survival was 0.8 to 0.56, according to censorship. CONCLUSION These data suggest that PCI(20) is safe and effective in patients with NSCLC.
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Affiliation(s)
- Daniel D Karp
- The University of Texas MD Anderson Cancer Center, Houston, TX, USA
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Hans G, Schmidt BL, Strichartz G. Nociceptive sensitization by endothelin-1. ACTA ACUST UNITED AC 2009; 60:36-42. [DOI: 10.1016/j.brainresrev.2008.12.008] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/29/2008] [Indexed: 10/21/2022]
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Endothelin inhibits cholangiocarcinoma growth by a decrease in the vascular endothelial growth factor expression. Liver Int 2009. [PMID: 19291182 DOI: 10.1111/j.1478-3231.2009.01997] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/10/2023]
Abstract
BACKGROUND Endothelins (ET-1, ET-2, ET-3) are peptides with vasoactive properties interacting with ET(A) and ET(B) receptors. ET-1 inhibits secretin-stimulated ductal secretion (hallmark of cholangiocyte growth) of cholestatic rats by interaction with ET receptors. AIM The aims of the studies were to evaluate (i) the effect of ET-1 on cholangiocarcinoma growth in Mz-ChA-1 cells and nude mice and (ii) whether ET-1 regulation of cholangiocarcinoma growth is associated with changes in the expression of vascular endothelial growth factor-A (VEGF-A), VEGF-C, VEGF receptor-2 (VEGFR-2) and VEGFR-3. METHODS We determined the expression of ET(A) and ET(B) receptors on normal and malignant (Mz-ChA-1) cholangiocytes and human cholangiocarcinoma tissue and the effect of ET-1 on the proliferation and expression of VEGF-A, VEGF-C (regulators of tumour angiogenesis) and its receptors, VEGFR-2 and VEGFR-3, in Mz-ChA-1 cells. In vivo, Mz-ChA-1 cells were injected into the flanks of athymic mice and injections of ET-1 or saline into the tumours were performed daily. The effect of ET-1 on tumour size, cell proliferation, apoptosis, collagen quantity and the expression of VEGF-A and VEGF-C and VEGFR-2 and VEGFR-3 were measured after 73 days. RESULTS Higher expression of ET(A) and ET(B) was observed in malignant compared with normal cholangiocytes. ET-1 inhibited proliferation and VEGF-A, VEGF-C, VEGFR-2 and VEGFR-3 expression of Mz-ChA-1 cells. Chronic ET-1 treatment decreased tumour volume, tumour cell proliferation and VEGF-A and VEGF-C expression but increased apoptosis and collagen tissue deposition compared with controls. CONCLUSIONS Modulation of VEGF-A and VEGF-C (by ET-1) may be important for managing cholangiocarcinoma growth.
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Palmer MJ. Endothelin receptor antagonists: status and learning 20 years on. PROGRESS IN MEDICINAL CHEMISTRY 2009; 47:203-37. [PMID: 19328292 DOI: 10.1016/s0079-6468(08)00205-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Michael J Palmer
- Sandwich Discovery Chemistry, Pfizer Global Research and Development, Sandwich Laboratories, Ramsgate Road, Sandwich, Kent CT13 9NJ, UK
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Raichlin E, Prasad A, Mathew V, Kent B, Holmes DR, Pumper GM, Nelson RE, Lerman LO, Lerman A. Efficacy and safety of atrasentan in patients with cardiovascular risk and early atherosclerosis. Hypertension 2008; 52:522-8. [PMID: 18695150 DOI: 10.1161/hypertensionaha.108.113068] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Endothelin plays an important role in the pathogenesis of atherosclerosis. The aim of the study was to evaluate the safety and hemodynamic and metabolic responses to 6 months treatment with atrasentan, the selective endothelin-A receptor antagonist. Seventy-two patients with multiple cardiovascular risk factors and nonobstructive coronary artery disease on coronary angiogram were randomly assigned in a double-blind manner to atrasentan or placebo. Mean aortic blood pressure decreased from 92+/-10 to 80+/-10 mm Hg (P<0.001) in the atrasentan group and did not change in the placebo group (93+/-10 and 92+/-11 mm Hg; P=0.84). The difference between the groups was significant (P<0.001). No effect on heart rate was observed. In a subgroup of patients not treated with angiotensin-converting enzyme inhibitor, creatinine level decreased in the atrasentan versus the placebo group (P=0.011). Fasting glucose (P=0.026), glycosylated hemoglobin level (P=0.041), triglyceride l (P=0.013), lipoprotein-A (P=0.046), and uric acid levels (P=0.048) decreased significantly in the atrasentan group compared with the placebo group. No progression of angiographic coronary disease was observed. The most common adverse effects with atrasentan were nasal stuffiness, headache, and edema. In conclusion, 6 months of treatment with atrasentan results in a reduction of blood pressure and improvement in glucose and lipid metabolism. These findings suggest the beneficial role of atrasentan in the treatment of hypertension and metabolic syndrome.
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Affiliation(s)
- Eugenia Raichlin
- Division of Cardiovascular Diseases, Center for Coronary Physiology and Imaging, Mayo Clinic, Rochester, MN 55905, USA
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