1
|
Maji S, Pradhan AK, Kumar A, Bhoopathi P, Mannangatti P, Guo C, Windle JJ, Subler MA, Wang XY, Semmes OJ, Nyalwidhe JO, Mukhopadhyay N, Paul AK, Hatfield B, Levit MM, Madan E, Sarkar D, Emdad L, Cohen DJ, Gogna R, Cavenee WK, Das SK, Fisher PB. MDA-9/Syntenin in the tumor and microenvironment defines prostate cancer bone metastasis. Proc Natl Acad Sci U S A 2023; 120:e2307094120. [PMID: 37922327 PMCID: PMC10636346 DOI: 10.1073/pnas.2307094120] [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: 04/29/2023] [Accepted: 09/25/2023] [Indexed: 11/05/2023] Open
Abstract
Bone metastasis is a frequent and incurable consequence of advanced prostate cancer (PC). An interplay between disseminated tumor cells and heterogeneous bone resident cells in the metastatic niche initiates this process. Melanoma differentiation associated gene-9 (mda-9/Syntenin/syndecan binding protein) is a prometastatic gene expressed in multiple organs, including bone marrow-derived mesenchymal stromal cells (BM-MSCs), under both physiological and pathological conditions. We demonstrate that PDGF-AA secreted by tumor cells induces CXCL5 expression in BM-MSCs by suppressing MDA-9-dependent YAP/MST signaling. CXCL5-derived tumor cell proliferation and immune suppression are consequences of the MDA-9/CXCL5 signaling axis, promoting PC disease progression. mda-9 knockout tumor cells express less PDGF-AA and do not develop bone metastases. Our data document a previously undefined role of MDA-9/Syntenin in the tumor and microenvironment in regulating PC bone metastasis. This study provides a framework for translational strategies to ameliorate health complications and morbidity associated with advanced PC.
Collapse
Affiliation(s)
- Santanu Maji
- Department of Human and Molecular Genetics, Virginia Commonwealth University, School of Medicine, Richmond, VA23298
| | - Anjan K. Pradhan
- Department of Human and Molecular Genetics, Virginia Commonwealth University, School of Medicine, Richmond, VA23298
- VCU Institute of Molecular Medicine, Virginia Commonwealth University, School of Medicine, Richmond, VA23298
| | - Amit Kumar
- Department of Human and Molecular Genetics, Virginia Commonwealth University, School of Medicine, Richmond, VA23298
| | - Praveen Bhoopathi
- Department of Human and Molecular Genetics, Virginia Commonwealth University, School of Medicine, Richmond, VA23298
- VCU Institute of Molecular Medicine, Virginia Commonwealth University, School of Medicine, Richmond, VA23298
| | - Padmanabhan Mannangatti
- Department of Human and Molecular Genetics, Virginia Commonwealth University, School of Medicine, Richmond, VA23298
- VCU Institute of Molecular Medicine, Virginia Commonwealth University, School of Medicine, Richmond, VA23298
| | - Chunqing Guo
- Department of Human and Molecular Genetics, Virginia Commonwealth University, School of Medicine, Richmond, VA23298
- VCU Institute of Molecular Medicine, Virginia Commonwealth University, School of Medicine, Richmond, VA23298
- VCU Massey Comprehensive Cancer Center, Virginia Commonwealth University, School of Medicine, Richmond, VA23298
| | - Jolene J. Windle
- Department of Human and Molecular Genetics, Virginia Commonwealth University, School of Medicine, Richmond, VA23298
- VCU Institute of Molecular Medicine, Virginia Commonwealth University, School of Medicine, Richmond, VA23298
- VCU Massey Comprehensive Cancer Center, Virginia Commonwealth University, School of Medicine, Richmond, VA23298
| | - Mark A. Subler
- Department of Human and Molecular Genetics, Virginia Commonwealth University, School of Medicine, Richmond, VA23298
- VCU Institute of Molecular Medicine, Virginia Commonwealth University, School of Medicine, Richmond, VA23298
| | - Xiang-Yang Wang
- Department of Human and Molecular Genetics, Virginia Commonwealth University, School of Medicine, Richmond, VA23298
- VCU Institute of Molecular Medicine, Virginia Commonwealth University, School of Medicine, Richmond, VA23298
- VCU Massey Comprehensive Cancer Center, Virginia Commonwealth University, School of Medicine, Richmond, VA23298
| | - Oliver J. Semmes
- Department of Microbiology and Molecular Cell Biology, Eastern Virginia Medical School, Norfolk, VA23507
| | - Julius O. Nyalwidhe
- Department of Microbiology and Molecular Cell Biology, Eastern Virginia Medical School, Norfolk, VA23507
| | - Nitai Mukhopadhyay
- VCU Massey Comprehensive Cancer Center, Virginia Commonwealth University, School of Medicine, Richmond, VA23298
- Department of Biostatistics, Virginia Commonwealth University, School of Medicine, Richmond, VA23238
| | - Asit Kr. Paul
- VCU Massey Comprehensive Cancer Center, Virginia Commonwealth University, School of Medicine, Richmond, VA23298
- Department of Internal Medicine, Virginia Commonwealth University, School of Medicine, Richmond, VA23238
| | - Bryce Hatfield
- Department of Pathology, Virginia Commonwealth University, School of Medicine, Richmond, VA23238
| | - Michael M. Levit
- Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, Richmond, VA23238
| | - Esha Madan
- VCU Institute of Molecular Medicine, Virginia Commonwealth University, School of Medicine, Richmond, VA23298
- VCU Massey Comprehensive Cancer Center, Virginia Commonwealth University, School of Medicine, Richmond, VA23298
- Department of Surgery, Virginia Commonwealth University, School of Medicine, Richmond, VA23238
| | - Devanand Sarkar
- Department of Human and Molecular Genetics, Virginia Commonwealth University, School of Medicine, Richmond, VA23298
- VCU Institute of Molecular Medicine, Virginia Commonwealth University, School of Medicine, Richmond, VA23298
- VCU Massey Comprehensive Cancer Center, Virginia Commonwealth University, School of Medicine, Richmond, VA23298
| | - Luni Emdad
- Department of Human and Molecular Genetics, Virginia Commonwealth University, School of Medicine, Richmond, VA23298
- VCU Institute of Molecular Medicine, Virginia Commonwealth University, School of Medicine, Richmond, VA23298
- VCU Massey Comprehensive Cancer Center, Virginia Commonwealth University, School of Medicine, Richmond, VA23298
| | - David J. Cohen
- Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, Richmond, VA23238
| | - Rajan Gogna
- Department of Human and Molecular Genetics, Virginia Commonwealth University, School of Medicine, Richmond, VA23298
- VCU Institute of Molecular Medicine, Virginia Commonwealth University, School of Medicine, Richmond, VA23298
- VCU Massey Comprehensive Cancer Center, Virginia Commonwealth University, School of Medicine, Richmond, VA23298
| | - Webster K. Cavenee
- Ludwig Institute for Cancer Research, University of California San Diego, La Jolla, CA92093
| | - Swadesh K. Das
- Department of Human and Molecular Genetics, Virginia Commonwealth University, School of Medicine, Richmond, VA23298
- VCU Institute of Molecular Medicine, Virginia Commonwealth University, School of Medicine, Richmond, VA23298
- VCU Massey Comprehensive Cancer Center, Virginia Commonwealth University, School of Medicine, Richmond, VA23298
| | - Paul B. Fisher
- Department of Human and Molecular Genetics, Virginia Commonwealth University, School of Medicine, Richmond, VA23298
- VCU Institute of Molecular Medicine, Virginia Commonwealth University, School of Medicine, Richmond, VA23298
- VCU Massey Comprehensive Cancer Center, Virginia Commonwealth University, School of Medicine, Richmond, VA23298
| |
Collapse
|
2
|
Garces de Los Fayos Alonso I, Zujo L, Wiest I, Kodajova P, Timelthaler G, Edtmayer S, Zrimšek M, Kollmann S, Giordano C, Kothmayer M, Neubauer HA, Dey S, Schlederer M, Schmalzbauer BS, Limberger T, Probst C, Pusch O, Högler S, Tangermann S, Merkel O, Schiefer AI, Kornauth C, Prutsch N, Zimmerman M, Abraham B, Anagnostopoulos J, Quintanilla-Martinez L, Mathas S, Wolf P, Stoiber D, Staber PB, Egger G, Klapper W, Woessmann W, Look TA, Gunning P, Turner SD, Moriggl R, Lagger S, Kenner L. PDGFRβ promotes oncogenic progression via STAT3/STAT5 hyperactivation in anaplastic large cell lymphoma. Mol Cancer 2022; 21:172. [PMID: 36045346 PMCID: PMC9434917 DOI: 10.1186/s12943-022-01640-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 07/31/2022] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Anaplastic large cell lymphoma (ALCL) is an aggressive non-Hodgkin T cell lymphoma commonly driven by NPM-ALK. AP-1 transcription factors, cJUN and JUNb, act as downstream effectors of NPM-ALK and transcriptionally regulate PDGFRβ. Blocking PDGFRβ kinase activity with imatinib effectively reduces tumor burden and prolongs survival, although the downstream molecular mechanisms remain elusive. METHODS AND RESULTS In a transgenic mouse model that mimics PDGFRβ-driven human ALCL in vivo, we identify PDGFRβ as a driver of aggressive tumor growth. Mechanistically, PDGFRβ induces the pro-survival factor Bcl-xL and the growth-enhancing cytokine IL-10 via STAT5 activation. CRISPR/Cas9 deletion of both STAT5 gene products, STAT5A and STAT5B, results in the significant impairment of cell viability compared to deletion of STAT5A, STAT5B or STAT3 alone. Moreover, combined blockade of STAT3/5 activity with a selective SH2 domain inhibitor, AC-4-130, effectively obstructs tumor development in vivo. CONCLUSIONS We therefore propose PDGFRβ as a novel biomarker and introduce PDGFRβ-STAT3/5 signaling as an important axis in aggressive ALCL. Furthermore, we suggest that inhibition of PDGFRβ or STAT3/5 improve existing therapies for both previously untreated and relapsed/refractory ALK+ ALCL patients.
Collapse
Affiliation(s)
- I Garces de Los Fayos Alonso
- Department of Pathology, Medical University of Vienna, 1090, Vienna, Austria
- Unit of Laboratory Animal Pathology, University of Veterinary Medicine Vienna, 1210, Vienna, Austria
| | - L Zujo
- Department of Pathology, Medical University of Vienna, 1090, Vienna, Austria
- Unit of Laboratory Animal Pathology, University of Veterinary Medicine Vienna, 1210, Vienna, Austria
- Division of Nuclear Medicine, Medical University of Vienna, 1090, Vienna, Austria
| | - I Wiest
- Department of Pathology, Medical University of Vienna, 1090, Vienna, Austria
- Unit of Laboratory Animal Pathology, University of Veterinary Medicine Vienna, 1210, Vienna, Austria
- Division of Nuclear Medicine, Medical University of Vienna, 1090, Vienna, Austria
| | - P Kodajova
- Unit of Laboratory Animal Pathology, University of Veterinary Medicine Vienna, 1210, Vienna, Austria
| | - G Timelthaler
- Center for Cancer Research, Medical University of Vienna, 1090, Vienna, Austria
| | - S Edtmayer
- Division Pharmacology, Department of Pharmacology, Physiology and Microbiology, Karl Landsteiner University of Health Sciences, 3500, Krems, Austria
| | - M Zrimšek
- Department of Pathology, Medical University of Vienna, 1090, Vienna, Austria
| | - S Kollmann
- Institute of Pharmacology and Toxicology, University of Veterinary Medicine Vienna, 1210, Vienna, Austria
| | - C Giordano
- Department of Pathology, Medical University of Vienna, 1090, Vienna, Austria
| | - M Kothmayer
- Department of Pathology, Medical University of Vienna, 1090, Vienna, Austria
- Unit of Laboratory Animal Pathology, University of Veterinary Medicine Vienna, 1210, Vienna, Austria
- Centre for Anatomy and Cell Biology, Medical University of Vienna, 1090, Vienna, Austria
| | - H A Neubauer
- Institute of Animal Breeding and Genetics, Unit of Functional Cancer Genomics, University of Veterinary Medicine Vienna, 1210, Vienna, Austria
| | - S Dey
- Department of Dermatology, Medical University of Graz, 8036, Graz, Austria
- Center for Medical Research (ZMF), Medical University of Graz, 8010, Graz, Austria
| | - M Schlederer
- Department of Pathology, Medical University of Vienna, 1090, Vienna, Austria
| | - B S Schmalzbauer
- Unit of Laboratory Animal Pathology, University of Veterinary Medicine Vienna, 1210, Vienna, Austria
- Institute of Pharmacology and Toxicology, University of Veterinary Medicine Vienna, 1210, Vienna, Austria
| | - T Limberger
- Department of Pathology, Medical University of Vienna, 1090, Vienna, Austria
- Division of Nuclear Medicine, Medical University of Vienna, 1090, Vienna, Austria
- CBMed Core Lab, Medical University of Vienna, 1090, Vienna, Austria
| | - C Probst
- Department of Pathology, Medical University of Vienna, 1090, Vienna, Austria
- Unit of Laboratory Animal Pathology, University of Veterinary Medicine Vienna, 1210, Vienna, Austria
- Division of Nuclear Medicine, Medical University of Vienna, 1090, Vienna, Austria
| | - O Pusch
- Centre for Anatomy and Cell Biology, Medical University of Vienna, 1090, Vienna, Austria
| | - S Högler
- Unit of Laboratory Animal Pathology, University of Veterinary Medicine Vienna, 1210, Vienna, Austria
| | - S Tangermann
- Unit of Laboratory Animal Pathology, University of Veterinary Medicine Vienna, 1210, Vienna, Austria
| | - O Merkel
- Department of Pathology, Medical University of Vienna, 1090, Vienna, Austria
| | - A I Schiefer
- Department of Pathology, Medical University of Vienna, 1090, Vienna, Austria
| | - C Kornauth
- Department of Medicine I, Division of Hematology and Hemostaseology, Medical University of Vienna, 1090, Vienna, Austria
- Comprehensive Cancer Center Vienna, Vienna General Hospital, Medical University of Vienna, 1090, Vienna, Austria
| | - N Prutsch
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
| | - M Zimmerman
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
| | - B Abraham
- Department of Computational Biology, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - J Anagnostopoulos
- Institute of Pathology, University of Wuerzburg, 97080, Würzburg, Germany
- Institute of Pathology, Charité-Medical University of Berlin, 10117, Berlin, Germany
| | - L Quintanilla-Martinez
- Institute of Pathology and Neuropathology and Cluster of excellence iFIT, "Image-Guided and Functionally Instructed Tumor Therapy", University of Tübingen, 72076, Tübingen, Germany
| | - S Mathas
- Department of Hematology, Oncology, and Cancer Immunology, Charité-Medical University of Berlin, 12200, Berlin, Germany
- German Cancer Consortium (DKTK) German Cancer Research Center (DKFZ), 69120, Heidelberg, Germany
- Max-Delbrück-Center (MDC) for Molecular Medicine, 13125, Berlin, Germany
- Experimental and Clinical Research Center, a joint cooperation between the Charité and the MDC, 13125, Berlin, Germany
| | - P Wolf
- Department of Dermatology, Medical University of Graz, 8036, Graz, Austria
| | - D Stoiber
- Division Pharmacology, Department of Pharmacology, Physiology and Microbiology, Karl Landsteiner University of Health Sciences, 3500, Krems, Austria
| | - P B Staber
- Department of Medicine I, Division of Hematology and Hemostaseology, Medical University of Vienna, 1090, Vienna, Austria
- Comprehensive Cancer Center Vienna, Vienna General Hospital, Medical University of Vienna, 1090, Vienna, Austria
| | - G Egger
- Department of Pathology, Medical University of Vienna, 1090, Vienna, Austria
- Comprehensive Cancer Center Vienna, Vienna General Hospital, Medical University of Vienna, 1090, Vienna, Austria
- Boltzmann Institute Applied Diagnostics, 1090, Vienna, Austria
| | - W Klapper
- Department of Pathology, Hematopathology Section and Lymph Node Registry, University of Kiel/University Hospital Schleswig-Holstein, 24105, Kiel, Germany
| | - W Woessmann
- Pediatric Hematology and Oncology, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | - T A Look
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
| | - P Gunning
- Department of Chemical and Physical Sciences, University of Toronto Mississauga, Mississauga, ON, L5L 1C6, Canada
- Department of Chemistry, University of Toronto, Toronto, ON, M5S 3H6, Canada
| | - S D Turner
- Division of Cellular and Molecular Pathology, Department of Pathology, University of Cambridge, Cambridge, CB20QQ, UK
- Central European Institute of Technology (CEITEC), Masaryk University, Brno, Czech Republic
| | - R Moriggl
- Institute of Animal Breeding and Genetics, Unit of Functional Cancer Genomics, University of Veterinary Medicine Vienna, 1210, Vienna, Austria
| | - S Lagger
- Unit of Laboratory Animal Pathology, University of Veterinary Medicine Vienna, 1210, Vienna, Austria
| | - L Kenner
- Department of Pathology, Medical University of Vienna, 1090, Vienna, Austria.
- Unit of Laboratory Animal Pathology, University of Veterinary Medicine Vienna, 1210, Vienna, Austria.
- Division of Nuclear Medicine, Medical University of Vienna, 1090, Vienna, Austria.
- Center for Medical Research (ZMF), Medical University of Graz, 8010, Graz, Austria.
- CBMed Core Lab, Medical University of Vienna, 1090, Vienna, Austria.
- Christian Doppler Laboratory of Applied Metabolomics, Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, 1090, Vienna, Austria.
| |
Collapse
|
3
|
Harris KS, Shi L, Foster BM, Mobley ME, Elliott PL, Song CJ, Watabe K, Langefeld CD, Kerr BA. CD117/c-kit defines a prostate CSC-like subpopulation driving progression and TKI resistance. Sci Rep 2021; 11:1465. [PMID: 33446896 PMCID: PMC7809150 DOI: 10.1038/s41598-021-81126-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 01/04/2021] [Indexed: 12/12/2022] Open
Abstract
Cancer stem-like cells (CSCs) are associated with cancer progression, metastasis, and recurrence, and may also represent a subset of circulating tumor cells (CTCs). In our prior study, CTCs in advanced prostate cancer patients were found to express CD117/c-kit in a liquid biopsy. Whether CD117 expression played an active or passive role in the aggressiveness and migration of these CTCs remained an open question. In this study, we show that CD117 expression in prostate cancer patients is associated with decreased overall and progression-free survival and that activation and phosphorylation of CD117 increases in prostate cancer patients with higher Gleason grades. To determine how CD117 expression and activation by its ligand stem cell factor (SCF, kit ligand, steel factor) alter prostate cancer aggressiveness, we used C4-2 and PC3-mm human prostate cancer cells, which contain a CD117+ subpopulation. We demonstrate that CD117+ cells display increased proliferation and migration. In prostaspheres, CD117 expression enhances sphere formation. In both 2D and 3D cultures, stemness marker gene expression is higher in CD117+ cells. Using xenograft limiting dilution assays and serial tumor initiation assays, we show that CD117+ cells represent a CSC population. Combined, these data indicate that CD117 expression potentially promotes tumor initiation and metastasis. Further, in cell lines, CD117 activation by SCF promotes faster proliferation and invasiveness, while blocking CD117 activation with tyrosine kinase inhibitors (TKIs) decreased progression in a context-dependent manner. We demonstrate that CD117 expression and activation drives prostate cancer aggressiveness through the CSC phenotype and TKI resistance.
Collapse
Affiliation(s)
- Koran S Harris
- Department of Cancer Biology, Wake Forest School of Medicine, Medical Center Blvd, Winston-Salem, NC, 27157, USA
| | - Lihong Shi
- Department of Cancer Biology, Wake Forest School of Medicine, Medical Center Blvd, Winston-Salem, NC, 27157, USA
| | - Brittni M Foster
- Department of Cancer Biology, Wake Forest School of Medicine, Medical Center Blvd, Winston-Salem, NC, 27157, USA
| | - Mary E Mobley
- Department of Cancer Biology, Wake Forest School of Medicine, Medical Center Blvd, Winston-Salem, NC, 27157, USA
| | - Phyllis L Elliott
- Department of Cancer Biology, Wake Forest School of Medicine, Medical Center Blvd, Winston-Salem, NC, 27157, USA
| | - Conner J Song
- Department of Cancer Biology, Wake Forest School of Medicine, Medical Center Blvd, Winston-Salem, NC, 27157, USA
| | - Kounosuke Watabe
- Department of Cancer Biology, Wake Forest School of Medicine, Medical Center Blvd, Winston-Salem, NC, 27157, USA.,Wake Forest Baptist Comprehensive Cancer Center, Winston-Salem, NC, 27157, USA
| | - Carl D Langefeld
- Wake Forest Baptist Comprehensive Cancer Center, Winston-Salem, NC, 27157, USA.,Department of Biostatistics and Data Science, Division of Public Health Sciences, Wake Forest School of Medicine, Winston-Salem, NC, 27157, USA
| | - Bethany A Kerr
- Department of Cancer Biology, Wake Forest School of Medicine, Medical Center Blvd, Winston-Salem, NC, 27157, USA. .,Wake Forest Baptist Comprehensive Cancer Center, Winston-Salem, NC, 27157, USA. .,Department of Urology, Wake Forest School of Medicine, Winston-Salem, NC, 27157, USA.
| |
Collapse
|
4
|
Targeting the Hepatocyte Growth Factor and c-Met Signaling Axis in Bone Metastases. Int J Mol Sci 2019; 20:ijms20020384. [PMID: 30658428 PMCID: PMC6359064 DOI: 10.3390/ijms20020384] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 01/14/2019] [Accepted: 01/15/2019] [Indexed: 12/22/2022] Open
Abstract
Bone metastasis is the terminal stage disease of prostate, breast, renal, and lung cancers, and currently no therapeutic approach effectively cures or prevents its progression to bone metastasis. One of the hurdles to the development of new drugs for bone metastasis is the complexity and heterogeneity of the cellular components in the metastatic bone microenvironment. For example, bone cells, including osteoblasts, osteoclasts, and osteocytes, and the bone marrow cells of diverse hematopoietic lineages interact with each other via numerous cytokines and receptors. c-Met tyrosine kinase receptor and its sole ligand hepatocyte growth factor (HGF) are enriched in the bone microenvironment, and their expression correlates with the progression of bone metastasis. However, no drugs or antibodies targeting the c-Met/HGF signaling axis are currently available in bone metastatic patients. This significant discrepancy should be overcome by further investigation of the roles and regulation of c-Met and HGF in the metastatic bone microenvironment. This review paper summarizes the key findings of c-Met and HGF in the development of novel therapeutic approaches for bone metastasis.
Collapse
|
5
|
Papadopoulos N, Lennartsson J. The PDGF/PDGFR pathway as a drug target. Mol Aspects Med 2018; 62:75-88. [DOI: 10.1016/j.mam.2017.11.007] [Citation(s) in RCA: 100] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Accepted: 11/10/2017] [Indexed: 02/07/2023]
|
6
|
Wermuth PJ, Jimenez SA. Abrogation of transforming growth factor-β-induced tissue fibrosis in TBRIcaCol1a2Cre transgenic mice by the second generation tyrosine kinase inhibitor SKI-606 (Bosutinib). PLoS One 2018; 13:e0196559. [PMID: 29718973 PMCID: PMC5931634 DOI: 10.1371/journal.pone.0196559] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Accepted: 04/16/2018] [Indexed: 12/20/2022] Open
Abstract
Transforming growth factor-β (TGF-β) plays a crucial role in the pathogenesis of Systemic Sclerosis (SSc) and other fibrotic disorders. TGF-β-mediated c-Abl and Src kinase activation induces strong profibrotic cascade signaling. The purpose of this study was to test in vivo the antifibrotic activity of Bosutinib (SKI-606), a second generation c-Abl and Src kinase inhibitor, on TGF-β induced cutaneous and pulmonary fibrosis. For this purpose, we employed the TBRIcaCol1a2Cre transgenic mice expressing an inducible constitutively active TGF-β receptor 1 constitutively activated by Col1a promoter-mediated Cre recombinase. The mice were treated parenterally with 2.5, 5.0 or 10.0 mg/kg/day of Bosutinib for 42 days. Skin and lungs from control and Bosutinib-treated mice (n = 6 per group) were assessed by histopathology, measurement of tissue hydroxyproline content, PCR analysis of tissue fibrosis associated gene expression, and evidence of myofibroblast activation. Mice with constitutive TGF-β-1 signaling displayed severe cutaneous and pulmonary fibrosis. Bosutinib administration decreased collagen deposition and hydroxyproline content in the dermis and lungs in a dose-dependent manner. Bosutinib also reversed the marked increase in profibrotic and myofibroblast activation-associated gene expression. These results demonstrate that constitutive TGF-β-1-signaling-induced cutaneous and pulmonary fibrosis were abrogated in a dose-related manner following parenteral administration of the c-Abl and Src tyrosine kinase inhibitor, Bosutinib. These results indicate that Bosutinib may be a potential therapeutic agent for tissue fibrosis in SSc and other fibroproliferative disorders.
Collapse
Affiliation(s)
- Peter J Wermuth
- Jefferson Institute of Molecular Medicine and Scleroderma Center, Thomas Jefferson University, Philadelphia, PA, United States of America
| | - Sergio A Jimenez
- Jefferson Institute of Molecular Medicine and Scleroderma Center, Thomas Jefferson University, Philadelphia, PA, United States of America
| |
Collapse
|
7
|
Heldin CH, Lennartsson J, Westermark B. Involvement of platelet-derived growth factor ligands and receptors in tumorigenesis. J Intern Med 2018; 283:16-44. [PMID: 28940884 DOI: 10.1111/joim.12690] [Citation(s) in RCA: 103] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Platelet-derived growth factor (PDGF) isoforms and their receptors have important roles during embryogenesis, particularly in the development of various mesenchymal cell types in different organs. In the adult, PDGF stimulates wound healing and regulates tissue homeostasis. However, overactivity of PDGF signalling is associated with malignancies and other diseases characterized by excessive cell proliferation, such as fibrotic conditions and atherosclerosis. In certain tumours, genetic or epigenetic alterations of the genes for PDGF ligands and receptors drive tumour cell proliferation and survival. Examples include the rare skin tumour dermatofibrosarcoma protuberance, which is driven by autocrine PDGF stimulation due to translocation of a PDGF gene, and certain gastrointestinal stromal tumours and leukaemias, which are driven by constitute activation of PDGF receptors due to point mutations and formation of fusion proteins of the receptors, respectively. Moreover, PDGF stimulates cells in tumour stroma and promotes angiogenesis as well as the development of cancer-associated fibroblasts, both of which promote tumour progression. Inhibitors of PDGF signalling may thus be of clinical usefulness in the treatment of certain tumours.
Collapse
Affiliation(s)
- C-H Heldin
- Ludwig Institute for Cancer Research, Science for Life Laboratory, Uppsala University, Uppsala, Sweden.,Department of Medical Biochemistry and Microbiology, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - J Lennartsson
- Ludwig Institute for Cancer Research, Science for Life Laboratory, Uppsala University, Uppsala, Sweden.,Department of Pharmaceutical Biosciences, Uppsala University, Uppsala, Sweden
| | - B Westermark
- Department of Genetics and Pathology, Uppsala University, Uppsala, Sweden
| |
Collapse
|
8
|
Genitourinary tumours in the targeted therapies era: new advances in clinical practice and future perspectives. Anticancer Drugs 2017; 27:917-43. [PMID: 27400375 DOI: 10.1097/cad.0000000000000405] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Genitourinary cancers represent a heterogeneous group of malignancies arising from genitourinary tract, and are responsible for almost 359 000 newly diagnosed cases and 58 420 related deaths in USA. Continuous advances in cancer genetics and genomics have contributed towards changing the management paradigms of these neoplasms. Neoangiogenesis, through the activation of the tyrosine-kinase receptors signalling pathways, represents the key mediator event in promoting tumour proliferation, differentiation, invasiveness and motility. In the last decade, several treatments have been developed with the specific aim of targeting different cell pathways that have been recognized to drive tumour progression. The following review attempts to provide a comprehensive overview of the literature, focusing on new advances in targeted therapies for genitourinary tumours. Furthermore, the promising results of the latest clinical trials and future perspectives will be discussed.
Collapse
|
9
|
High expression of PDGFR-β in prostate cancer stroma is independently associated with clinical and biochemical prostate cancer recurrence. Sci Rep 2017; 7:43378. [PMID: 28233816 PMCID: PMC5324133 DOI: 10.1038/srep43378] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Accepted: 01/23/2017] [Indexed: 12/12/2022] Open
Abstract
Due to a lack of sufficient diagnostic tools to predict aggressive disease, there is a significant overtreatment of patients with prostate cancer. Platelet derived growth factors (PDGFs) and their receptors (PDGFRs) are key regulators of mesenchymal cells in the tumor microenvironment, and has been associated with unfavorable outcome in several other cancers. Herein, we aimed to investigate the prognostic impact of PDGFR-β and its ligands (PDGF-B and PDGF-D) in a multicenter prostatectomy cohort of 535 Norwegian patients. Using tissue microarrays and immunohistochemistry, the expression of ligands PDGF-B and PDGF-D and their corresponding receptor, PDGFR-β, was assessed in neoplastic tissue and tumor-associated stroma. PDGFR-β was expressed in benign and tumor associated stroma, but not in epithelium. High stromal expression of PDGFR-β was independently associated with clinical relapse (HR = 2.17, p = 0.010) and biochemical failure (HR = 1.58, p = 0.002). This large study highlights the prognostic importance of PDGFR-β expression, implicating its involvement in prostate cancer progression even in early stage disease. Hence, analyses of PDGFR-β may help distinguish which patients will benefit from radical treatment, and since PDGFR-β is associated with relapse and shorter survival, it mandates a focus as a therapeutic target.
Collapse
|
10
|
Jachetti E, Rigoni A, Bongiovanni L, Arioli I, Botti L, Parenza M, Cancila V, Chiodoni C, Festinese F, Bellone M, Tardanico R, Tripodo C, Colombo MP. Imatinib Spares cKit-Expressing Prostate Neuroendocrine Tumors, whereas Kills Seminal Vesicle Epithelial-Stromal Tumors by Targeting PDGFR-β. Mol Cancer Ther 2016; 16:365-375. [PMID: 27980106 DOI: 10.1158/1535-7163.mct-16-0466] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Revised: 10/31/2016] [Accepted: 11/19/2016] [Indexed: 11/16/2022]
Abstract
Prostate cancer is a leading cause of cancer-related death in males worldwide. Indeed, advanced and metastatic disease characterized by androgen resistance and often associated with neuroendocrine (NE) differentiation remains incurable. Using the spontaneous prostate cancer TRAMP model, we have shown that mast cells (MCs) support in vivo the growth of prostate adenocarcinoma, whereas their genetic or pharmacologic targeting favors prostate NE cancer arousal. Aiming at simultaneously targeting prostate NE tumor cells and MCs, both expressing the cKit tyrosine kinase receptor, we have tested the therapeutic effect of imatinib in TRAMP mice. Imatinib-treated TRAMP mice experience a partial benefit against prostate adenocarcinoma, because of inhibition of supportive MCs. However, they show an unexpected outgrowth of prostate NE tumors, likely because of defective signaling pathway downstream of cKit receptor. Also unexpected but very effective was the inhibition of epithelial-stromal tumors of the seminal vesicles achieved by imatinib treatment. These tumors normally arise in the seminal vesicles of TRAMP mice, independently of the degree of prostatic glandular lesions, and resemble phyllodes tumors found in human prostate and seminal vesicles, and in breast. In both mice and in patients, these tumors are negative for cKit but express PDGFR-β, another tyrosine kinase receptor specifically inhibited by imatinib. Our results imply a possible detrimental effect of imatinib in prostate cancer patients but suggest a promising therapeutic application of imatinib in the treatment of recurrent or metastatic phyllodes tumors. Mol Cancer Ther; 16(2); 365-75. ©2016 AACR.
Collapse
Affiliation(s)
- Elena Jachetti
- Molecular Immunology Unit, Department of Experimental Oncology and Molecular Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Alice Rigoni
- Molecular Immunology Unit, Department of Experimental Oncology and Molecular Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Lucia Bongiovanni
- Tumor Immunology Unit, Department of Health Sciences, University of Palermo, Palermo, Italy
| | - Ivano Arioli
- Molecular Immunology Unit, Department of Experimental Oncology and Molecular Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Laura Botti
- Molecular Immunology Unit, Department of Experimental Oncology and Molecular Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Mariella Parenza
- Molecular Immunology Unit, Department of Experimental Oncology and Molecular Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Valeria Cancila
- Tumor Immunology Unit, Department of Health Sciences, University of Palermo, Palermo, Italy
| | - Claudia Chiodoni
- Molecular Immunology Unit, Department of Experimental Oncology and Molecular Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Fabrizio Festinese
- Pharmacy Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Matteo Bellone
- Division of Immunology, Transplantation and Infectious Diseases, Cellular Immunology Unit, San Raffaele Scientific Institute, Milan, Italy
| | - Regina Tardanico
- Department of Molecular and Translational Medicine, Section of Pathology, University of Brescia, Brescia, Italy
| | - Claudio Tripodo
- Tumor Immunology Unit, Department of Health Sciences, University of Palermo, Palermo, Italy
| | - Mario P Colombo
- Molecular Immunology Unit, Department of Experimental Oncology and Molecular Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy.
| |
Collapse
|
11
|
Lou DY, Fong L. Neoadjuvant therapy for localized prostate cancer: Examining mechanism of action and efficacy within the tumor. Urol Oncol 2016; 34:182-92. [PMID: 24495446 PMCID: PMC4499005 DOI: 10.1016/j.urolonc.2013.12.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2013] [Revised: 11/26/2013] [Accepted: 12/09/2013] [Indexed: 02/07/2023]
Abstract
OBJECTIVES Efforts to improve the clinical outcome for patients with localized high-risk prostate cancer have led to the development of neoadjuvant systemic therapies. We review the different modalities of neoadjuvant therapies for localized prostate cancer and highlight emerging treatment approaches including immunotherapy and targeted therapy. METHODS We performed a PubMed search of clinical trials evaluating preoperative systemic therapies for treating high-risk prostate cancer published after 2000, and those studies with the highest clinical relevance to current treatment approaches were selected for review. The database at clinicaltrials.gov was queried for neoadjuvant studies in high-risk prostate cancer, and those evaluating novel targeted therapies and immunotherapies are spotlighted here. RESULTS Neoadjuvant chemotherapy has become standard of care for treating some malignancies, including breast and bladder cancers. In prostate cancer, preoperative hormonal therapy or chemotherapy has failed to demonstrate improvements in overall survival. Nevertheless, the emergence of novel treatment modalities such as targeted small molecules and immunotherapy has spawned neoadjuvant clinical trials that provide a unique vantage from which to study mechanism of action and biological potency. Tissue-based biomarkers are being developed to elucidate the biological efficacy of these treatments. With targeted therapy, these can include phospho-proteomic signatures of target pathway activation and deactivation. With immunotherapies, including sipuleucel-T and ipilimumab, recruitment of immune cells to the tumor microenvironment can also be used as robust markers of a biological effect. Such studies can provide insight not only into mechanism of action for these therapies but can also provide paths forward to improving clinical efficacy like with rationally designed combinations and dose selection. CONCLUSIONS The use of neoadjuvant androgen-deprivation therapy and chemotherapy either singly or in combination before radical prostatectomy is generally safe and feasible while reducing prostate volume and tumor burden. However, pathologic complete response rates are low and no long-term survival benefit has been observed with the addition of neoadjuvant therapies over surgery alone at present, and therefore preoperative therapy is not the current standard of care in prostate cancer treatment.
Collapse
Affiliation(s)
- David Y Lou
- Division of Hematology/Oncology, University of California, San Francisco, CA; UCSF Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, CA
| | - Lawrence Fong
- Division of Hematology/Oncology, University of California, San Francisco, CA; UCSF Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, CA.
| |
Collapse
|
12
|
Abstract
Introduction: The treatment landscape for patients with metastatic castration-resistant prostate cancer (CRPC) is evolving, with recent approvals of immune therapy, novel hormonal therapy, and bone-targeted therapy. Chemotherapy remains an essential component of the armamentarium. Herein, we review current chemotherapy options for patients with CRPC and discuss future challenges. Methods: We reviewed literature for chemotherapy agents in prostate cancer, with special attention to the evidence for efficacy of the currently approved agents. We also reviewed emerging data on biomarkers of response to chemotherapy for CRPC. Results: Taxanes, especially docetaxel and cabazitaxel, have first- and second-line indications for CRPC, respectively, with both providing a survival benefit. Multiple attempts to improve on the single agent efficacy of docetaxel with combination therapy have not generally been successful although platinum combinations are used for resistant phenotypes. Reductions in prostate-specific antigen by ≥30% and reductions in circulating tumor cells (CTCs) to ≤ 5 are associated with improved survival on chemotherapy. Chemotherapy may continue to be effective therapy for patients with biomarkers that are associated with resistance to androgen-directed therapies (androgen receptor splice variant 7 positivity in CTCs or high CTC heterogeneity). Conclusions: Chemotherapy remains an essential component of CRPC therapy, and biomarkers are being identified to define clinical scenarios where chemotherapy may be the optimal therapy choice.
Collapse
Affiliation(s)
- Benjamin A Teply
- Department of Oncology, Johns Hopkins University, Baltimore, Maryland, USA
| | | |
Collapse
|
13
|
Najy AJ, Dyson G, Jena BP, Lin CY, Kim HRC. Matriptase activation and shedding through PDGF-D-mediated extracellular acidosis. Am J Physiol Cell Physiol 2015; 310:C293-304. [PMID: 26157007 DOI: 10.1152/ajpcell.00043.2015] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2015] [Accepted: 12/07/2015] [Indexed: 01/01/2023]
Abstract
Activation of β-platelet-derived growth factor receptor (β-PDGFR) is associated with prostate cancer (PCa) progression and recurrence after prostatectomy. Analysis of the β-PDGFR ligands in PCa revealed association between PDGF-D expression and Gleason score as well as tumor stage. During the course of studying the functional consequences of PDGF ligand-specific β-PDGFR signaling in PCa, we discovered a novel function of PDGF-D for activation/shedding of the serine protease matriptase leading to cell invasion, migration, and tumorigenesis. The present study showed that PDGF-D, not PDGF-B, induces extracellular acidification, which correlates with increased matriptase activation. A cDNA microarray analysis revealed that PDGF-D/β-PDGFR signaling upregulates expression of the acidosis regulator carbonic anhydrase IX (CAIX), a classic target of the transcriptional factor hypoxia-inducible factor-1α (HIF-1α). Cellular fractionation displayed a strong HIF-1α nuclear localization in PDGF-D-expressing cells. Treatment of vector control or PDGF-B-expressing cells with the HIF-1α activator CoCl2 led to increased CAIX expression accompanied by extracellular acidosis and matriptase activation. Furthermore, the analysis of the CAFTD cell lines, variants of the BPH-1 transformation model, showed that increased PDGF-D expression is associated with enhanced HIF-1α activity, CAIX induction, cellular acidosis, and matriptase shedding. Importantly, shRNA-mediated knockdown of CAIX expression effectively reversed extracellular acidosis and matriptase activation in PDGF-D-transfected BPH-1 cells and in CAFTD variants that express endogenous PDGF-D at a high level. Taken together, these novel findings reveal a new paradigm in matriptase activation involving PDGF-D-specific signal transduction leading to extracellular acidosis.
Collapse
Affiliation(s)
- Abdo J Najy
- Department of Pathology, Barbara Ann Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, Michigan
| | - Gregory Dyson
- Department of Oncology, Barbara Ann Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, Michigan
| | - Bhanu P Jena
- Department of Physiology, Wayne State University School of Medicine, Detroit, Michigan; and
| | - Chen-Yong Lin
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, District of Columbia
| | - Hyeong-Reh C Kim
- Department of Pathology, Barbara Ann Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, Michigan;
| |
Collapse
|
14
|
Ségaliny AI, Tellez-Gabriel M, Heymann MF, Heymann D. Receptor tyrosine kinases: Characterisation, mechanism of action and therapeutic interests for bone cancers. J Bone Oncol 2015; 4:1-12. [PMID: 26579483 PMCID: PMC4620971 DOI: 10.1016/j.jbo.2015.01.001] [Citation(s) in RCA: 98] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Accepted: 01/18/2015] [Indexed: 01/13/2023] Open
Abstract
Bone cancers are characterised by the development of tumour cells in bone sites, associated with a dysregulation of their environment. In the last two decades, numerous therapeutic strategies have been developed to target the cancer cells or tumour niche. As the crosstalk between these two entities is tightly controlled by the release of polypeptide mediators activating signalling pathways through several receptor tyrosine kinases (RTKs), RTK inhibitors have been designed. These inhibitors have shown exciting clinical impacts, such as imatinib mesylate, which has become a reference treatment for chronic myeloid leukaemia and gastrointestinal tumours. The present review gives an overview of the main molecular and functional characteristics of RTKs, and focuses on the clinical applications that are envisaged and already assessed for the treatment of bone sarcomas and bone metastases.
Collapse
Affiliation(s)
- Aude I Ségaliny
- INSERM, UMR 957, Equipe LIGUE Nationale Contre le Cancer 2012, Nantes 44035, France ; Université de Nantes, Nantes atlantique universités, Pathophysiology of Bone Resorption and Therapy of Primary Bone Tumours, Nantes, France
| | - Marta Tellez-Gabriel
- INSERM, UMR 957, Equipe LIGUE Nationale Contre le Cancer 2012, Nantes 44035, France ; Université de Nantes, Nantes atlantique universités, Pathophysiology of Bone Resorption and Therapy of Primary Bone Tumours, Nantes, France
| | - Marie-Françoise Heymann
- INSERM, UMR 957, Equipe LIGUE Nationale Contre le Cancer 2012, Nantes 44035, France ; Université de Nantes, Nantes atlantique universités, Pathophysiology of Bone Resorption and Therapy of Primary Bone Tumours, Nantes, France ; CHU de Nantes, France
| | - Dominique Heymann
- INSERM, UMR 957, Equipe LIGUE Nationale Contre le Cancer 2012, Nantes 44035, France ; Université de Nantes, Nantes atlantique universités, Pathophysiology of Bone Resorption and Therapy of Primary Bone Tumours, Nantes, France ; CHU de Nantes, France
| |
Collapse
|
15
|
Cheon PM, Pulenzas N, Zhang L, Mauti E, Wong E, Thavarajah N, Tsao M, Danjoux C, Holden L, DeAngelis C, Chow E. Fatigue scores in patients receiving palliative radiotherapy for painful bone metastases. Support Care Cancer 2014; 23:2097-103. [DOI: 10.1007/s00520-014-2561-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2014] [Accepted: 12/07/2014] [Indexed: 11/28/2022]
|
16
|
Ganguly SS, Li X, Miranti CK. The host microenvironment influences prostate cancer invasion, systemic spread, bone colonization, and osteoblastic metastasis. Front Oncol 2014; 4:364. [PMID: 25566502 PMCID: PMC4266028 DOI: 10.3389/fonc.2014.00364] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2014] [Accepted: 11/29/2014] [Indexed: 12/28/2022] Open
Abstract
Prostate cancer (PCa) is the second leading cause of cancer death in men worldwide. Most PCa deaths are due to osteoblastic bone metastases. What triggers PCa metastasis to the bone and what causes osteoblastic lesions remain unanswered. A major contributor to PCa metastasis is the host microenvironment. Here, we address how the primary tumor microenvironment influences PCa metastasis via integrins, extracellular proteases, and transient epithelia-mesenchymal transition (EMT) to promote PCa progression, invasion, and metastasis. We discuss how the bone-microenvironment influences metastasis; where chemotactic cytokines favor bone homing, adhesion molecules promote colonization, and bone-derived signals induce osteoblastic lesions. Animal models that fully recapitulate human PCa progression from primary tumor to bone metastasis are needed to understand the PCa pathophysiology that leads to bone metastasis. Better delineation of the specific processes involved in PCa bone metastasize is needed to prevent or treat metastatic PCa. Therapeutic regimens that focus on the tumor microenvironment could add to the PCa pharmacopeia.
Collapse
Affiliation(s)
- Sourik S Ganguly
- Program for Skeletal Disease and Tumor Metastasis, Laboratory of Tumor Microenvironment and Metastasis, Center for Cancer and Cell Biology, Van Andel Research Institute , Grand Rapids, MI , USA ; Program for Skeletal Disease and Tumor Metastasis, Laboratory of Integrin Signaling and Tumorigenesis, Center for Cancer and Cell Biology, Van Andel Research Institute , Grand Rapids, MI , USA
| | - Xiaohong Li
- Program for Skeletal Disease and Tumor Metastasis, Laboratory of Tumor Microenvironment and Metastasis, Center for Cancer and Cell Biology, Van Andel Research Institute , Grand Rapids, MI , USA
| | - Cindy K Miranti
- Program for Skeletal Disease and Tumor Metastasis, Laboratory of Integrin Signaling and Tumorigenesis, Center for Cancer and Cell Biology, Van Andel Research Institute , Grand Rapids, MI , USA
| |
Collapse
|
17
|
|
18
|
LEI NAIJUN, SONG ZHENGFANG, LU BING, TAN ZHENG, PEI JIAO, LIU WUSONG, XU KE. Docetaxel-based therapy with and without antiangiogenic agents as first-line chemotherapy for castration-resistant prostate cancer: A meta-analysis of nine randomized controlled trials. Mol Clin Oncol 2014; 2:1182-1188. [PMID: 25279220 PMCID: PMC4179809 DOI: 10.3892/mco.2014.404] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2013] [Accepted: 08/08/2014] [Indexed: 11/05/2022] Open
Abstract
The aim of this study was to systematically assess the effectiveness and safety of the addition of antiangiogenic agents to docetaxel-based chemotherapy for the treatment of castration-resistant prostate cancer. Computerized electronic databases, including Embase, PubMed and The Cochrane Library were searched for randomized controlled trials (RCTs) on the comparison between docetaxel-based therapy with and without antiangiogenic agents for the treatment of prostate cancer. The search time limit was from the building of the database until July 18, 2013. Following extracting information and conducting a methodological quality evaluation for study inclusion based on inclusion and exclusion criteria, RevMan 5.2 and Stata 12.0 software were used to perform a meta-analysis and the Jadad scale was used for evaluation of study quality. A total of 9 RCTs and 4,681 patients were included in this meta-analysis. The comparison between docetaxel-based therapy with and without antiangiogenic agents revealed no statistically significant differences regarding prostate-specific antigen response rate [risk ratio (RR)=0.99, 95% confidence interval (CI): 0.87-1.12, P=0.84], overall survival (OS) [hazard ratio (HR)=0.97, 95%CI: 0.91-1.05)] and progression-free survival (PFS) (HR=0.99, 95%CI: 0.83-1.18); however, the incidence of treatment-related mortality was higher in the docetaxel-based therapy with antiangiogenic agents group (RR=1.95, 95%CI: 1.23-3.11, P=0.005), whereas the incidence of thrombus formation was higher in the docetaxel-based therapy without antiangiogenic agents group (RR=0.57, 95%CI: 0.41-0.80, P=0.001). In conclusion, our findings indicated that docetaxel combined with antiangiogenic agents did not increase the OS or the PFS of the patients with castration-resistant prostate cancer, whereas it may increase the risk of treatment-related mortality. However, further RCTs with larger, high-quality patient samples are required to verify these findings.
Collapse
Affiliation(s)
- NAIJUN LEI
- Department of Urinary Surgery, Sichuan Cancer Hospital, Chengdu, Sichuan, P.R. China
- Department of Oncology, Affiliated Hospital of Guiyang Medical College and Guizhou Cancer Hospital, Guiyang, Guizhou, P.R. China
| | - ZHENGFANG SONG
- Department of Urinary Surgery, Sichuan Cancer Hospital, Chengdu, Sichuan, P.R. China
| | - BING LU
- Department of Oncology, Affiliated Hospital of Guiyang Medical College and Guizhou Cancer Hospital, Guiyang, Guizhou, P.R. China
| | - ZHENG TAN
- Department of Urinary Surgery, Sichuan Cancer Hospital, Chengdu, Sichuan, P.R. China
| | - JIAO PEI
- Sichuan Cancer Hospital and Institute, Chengdu, Sichuan, P.R. China
| | - WUSONG LIU
- Department of Urinary Surgery, Sichuan Cancer Hospital, Chengdu, Sichuan, P.R. China
- Department of Oncology, Affiliated Hospital of Guiyang Medical College and Guizhou Cancer Hospital, Guiyang, Guizhou, P.R. China
| | - KE XU
- Department of Oncology, The First Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan, P.R. China
| |
Collapse
|
19
|
Ojemuyiwa MA, Madan RA, Dahut WL. Tyrosine kinase inhibitors in the treatment of prostate cancer: taking the next step in clinical development. Expert Opin Emerg Drugs 2014; 19:459-70. [PMID: 25345821 DOI: 10.1517/14728214.2014.969239] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
INTRODUCTION Prostate cancer (PCa) is the most frequently diagnosed, non-cutaneous malignancy in Western countries. Until recently, few therapeutic options were available for patients with advanced PCa. Although these treatments may delay progression of disease, none are curative. Therefore, research continues to investigate other treatments for advanced PCa. Tyrosine kinase inhibitors (TKIs) have been extensively studied as a treatment for multiple malignancies and may represent an additional strategy. In addition to limiting cellular proliferation and metastasis, there is also growing interest in using these treatments to impact the bone microenvironment and reduce associated morbidity from PCa. AREAS COVERED Several TKIs have been evaluated in the preclinical setting in advanced PCa. Targets reviewed include the epidermal growth factor family, VEGF receptor, c-Src family kinases, platelet-derived growth factor and c-Met. EXPERT OPINION Despite strong biological rationale for the use of TKIs therapy for the treatment of PCa, Phase III clinical trials have produced disappointing results. As TKI strategies move forward, the failures of past trials need to be better understood. New approaches with these treatments will also have to take into account modern anti-androgens and a treatment landscape that now includes immunotherapy.
Collapse
Affiliation(s)
- Michelle A Ojemuyiwa
- Clinical Fellow,National Cancer Institute, Medical Oncology Branch , 9000 Rockville Pike Bldg 10, Rm 12N226, Bethesda, MD 20892 , USA
| | | | | |
Collapse
|
20
|
Basch E, Loblaw DA, Oliver TK, Carducci M, Chen RC, Frame JN, Garrels K, Hotte S, Kattan MW, Raghavan D, Saad F, Taplin ME, Walker-Dilks C, Williams J, Winquist E, Bennett CL, Wootton T, Rumble RB, Dusetzina SB, Virgo KS. Systemic therapy in men with metastatic castration-resistant prostate cancer:American Society of Clinical Oncology and Cancer Care Ontario clinical practice guideline. J Clin Oncol 2014; 32:3436-48. [PMID: 25199761 PMCID: PMC4876355 DOI: 10.1200/jco.2013.54.8404] [Citation(s) in RCA: 179] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
PURPOSE To provide treatment recommendations for men with metastatic castration-resistant prostate cancer (CRPC). METHODS The American Society of Clinical Oncology and Cancer Care Ontario convened an expert panel to develop evidence-based recommendations informed by a systematic review of the literature. RESULTS When added to androgen deprivation, therapies demonstrating improved survival, improved quality of life (QOL), and favorable benefit-harm balance include abiraterone acetate/prednisone, enzalutamide, and radium-223 ((223)Ra; for men with predominantly bone metastases). Improved survival and QOL with moderate toxicity risk are associated with docetaxel/prednisone. For asymptomatic/minimally symptomatic men, improved survival with unclear QOL impact and low toxicity are associated with sipuleucel-T. For men who previously received docetaxel, improved survival, unclear QOL impact, and moderate to high toxicity risk are associated with cabazitaxel/prednisone. Modest QOL benefit (without survival benefit) and high toxicity risk are associated with mitoxantrone/prednisone after docetaxel. No benefit and excess toxicity are observed with bevacizumab, estramustine, and sunitinib. RECOMMENDATIONS Continue androgen deprivation (pharmaceutical or surgical) indefinitely. Abiraterone acetate/prednisone, enzalutamide, or (223)Ra should be offered; docetaxel/prednisone should also be offered, accompanied by discussion of toxicity risk. Sipuleucel-T may be offered to asymptomatic/minimally symptomatic men. For men who have experienced progression with docetaxel, cabazitaxel may be offered, accompanied by discussion of toxicity risk. Mitoxantrone may be offered, accompanied by discussion of limited clinical benefit and toxicity risk. Ketoconazole or antiandrogens (eg, bicalutamide, flutamide, nilutamide) may be offered, accompanied by discussion of limited known clinical benefit. Bevacizumab, estramustine, and sunitinib should not be offered. There is insufficient evidence to evaluate optimal sequences or combinations of therapies. Palliative care should be offered to all patients.
Collapse
Affiliation(s)
- Ethan Basch
- Ethan Basch, Ronald C. Chen, and Stacie B. Dusetzina, University of North Carolina, Chapel Hill; Derek Raghavan, Carolinas Health Care/Levine Cancer Institute, Charlotte, NC; D. Andrew Loblaw, Odette Cancer Centre, Sunnybrook Health Sciences Centre; Ted Wootton, Patient Representatives, Toronto; Sebastian Hotte and Cindy Walker-Dilks, McMaster University; Cindy Walker-Dilks, Cancer Care Ontario, Hamilton; Eric Winquist, London Health Sciences Centre, London, Ontario; Fred Saad, University of Montreal, Montreal, Quebec, Canada; Thomas K. Oliver and R. Bryan Rumble, American Society of Clinical Oncology, Alexandria, VA; Michael Carducci, Johns Hopkins University, Baltimore, MD; James N. Frame, Charleston Area Medical Center Health Systems, Charleston, WV; Kristina Garrels, Private Practice, Fargo, ND; Michael W. Kattan, Cleveland Clinic, Cleveland, OH; Mary-Ellen Taplin, Dana-Farber Cancer Institute, Boston, MA; James Williams, Pennsylvania Prostate Cancer Coalition, Camp Hill, PA; Charles L. Bennett, South Carolina College of Pharmacy, Columbia, SC; and Katherine S. Virgo, Emory University, Atlanta, GA
| | - D Andrew Loblaw
- Ethan Basch, Ronald C. Chen, and Stacie B. Dusetzina, University of North Carolina, Chapel Hill; Derek Raghavan, Carolinas Health Care/Levine Cancer Institute, Charlotte, NC; D. Andrew Loblaw, Odette Cancer Centre, Sunnybrook Health Sciences Centre; Ted Wootton, Patient Representatives, Toronto; Sebastian Hotte and Cindy Walker-Dilks, McMaster University; Cindy Walker-Dilks, Cancer Care Ontario, Hamilton; Eric Winquist, London Health Sciences Centre, London, Ontario; Fred Saad, University of Montreal, Montreal, Quebec, Canada; Thomas K. Oliver and R. Bryan Rumble, American Society of Clinical Oncology, Alexandria, VA; Michael Carducci, Johns Hopkins University, Baltimore, MD; James N. Frame, Charleston Area Medical Center Health Systems, Charleston, WV; Kristina Garrels, Private Practice, Fargo, ND; Michael W. Kattan, Cleveland Clinic, Cleveland, OH; Mary-Ellen Taplin, Dana-Farber Cancer Institute, Boston, MA; James Williams, Pennsylvania Prostate Cancer Coalition, Camp Hill, PA; Charles L. Bennett, South Carolina College of Pharmacy, Columbia, SC; and Katherine S. Virgo, Emory University, Atlanta, GA
| | - Thomas K Oliver
- Ethan Basch, Ronald C. Chen, and Stacie B. Dusetzina, University of North Carolina, Chapel Hill; Derek Raghavan, Carolinas Health Care/Levine Cancer Institute, Charlotte, NC; D. Andrew Loblaw, Odette Cancer Centre, Sunnybrook Health Sciences Centre; Ted Wootton, Patient Representatives, Toronto; Sebastian Hotte and Cindy Walker-Dilks, McMaster University; Cindy Walker-Dilks, Cancer Care Ontario, Hamilton; Eric Winquist, London Health Sciences Centre, London, Ontario; Fred Saad, University of Montreal, Montreal, Quebec, Canada; Thomas K. Oliver and R. Bryan Rumble, American Society of Clinical Oncology, Alexandria, VA; Michael Carducci, Johns Hopkins University, Baltimore, MD; James N. Frame, Charleston Area Medical Center Health Systems, Charleston, WV; Kristina Garrels, Private Practice, Fargo, ND; Michael W. Kattan, Cleveland Clinic, Cleveland, OH; Mary-Ellen Taplin, Dana-Farber Cancer Institute, Boston, MA; James Williams, Pennsylvania Prostate Cancer Coalition, Camp Hill, PA; Charles L. Bennett, South Carolina College of Pharmacy, Columbia, SC; and Katherine S. Virgo, Emory University, Atlanta, GA
| | - Michael Carducci
- Ethan Basch, Ronald C. Chen, and Stacie B. Dusetzina, University of North Carolina, Chapel Hill; Derek Raghavan, Carolinas Health Care/Levine Cancer Institute, Charlotte, NC; D. Andrew Loblaw, Odette Cancer Centre, Sunnybrook Health Sciences Centre; Ted Wootton, Patient Representatives, Toronto; Sebastian Hotte and Cindy Walker-Dilks, McMaster University; Cindy Walker-Dilks, Cancer Care Ontario, Hamilton; Eric Winquist, London Health Sciences Centre, London, Ontario; Fred Saad, University of Montreal, Montreal, Quebec, Canada; Thomas K. Oliver and R. Bryan Rumble, American Society of Clinical Oncology, Alexandria, VA; Michael Carducci, Johns Hopkins University, Baltimore, MD; James N. Frame, Charleston Area Medical Center Health Systems, Charleston, WV; Kristina Garrels, Private Practice, Fargo, ND; Michael W. Kattan, Cleveland Clinic, Cleveland, OH; Mary-Ellen Taplin, Dana-Farber Cancer Institute, Boston, MA; James Williams, Pennsylvania Prostate Cancer Coalition, Camp Hill, PA; Charles L. Bennett, South Carolina College of Pharmacy, Columbia, SC; and Katherine S. Virgo, Emory University, Atlanta, GA
| | - Ronald C Chen
- Ethan Basch, Ronald C. Chen, and Stacie B. Dusetzina, University of North Carolina, Chapel Hill; Derek Raghavan, Carolinas Health Care/Levine Cancer Institute, Charlotte, NC; D. Andrew Loblaw, Odette Cancer Centre, Sunnybrook Health Sciences Centre; Ted Wootton, Patient Representatives, Toronto; Sebastian Hotte and Cindy Walker-Dilks, McMaster University; Cindy Walker-Dilks, Cancer Care Ontario, Hamilton; Eric Winquist, London Health Sciences Centre, London, Ontario; Fred Saad, University of Montreal, Montreal, Quebec, Canada; Thomas K. Oliver and R. Bryan Rumble, American Society of Clinical Oncology, Alexandria, VA; Michael Carducci, Johns Hopkins University, Baltimore, MD; James N. Frame, Charleston Area Medical Center Health Systems, Charleston, WV; Kristina Garrels, Private Practice, Fargo, ND; Michael W. Kattan, Cleveland Clinic, Cleveland, OH; Mary-Ellen Taplin, Dana-Farber Cancer Institute, Boston, MA; James Williams, Pennsylvania Prostate Cancer Coalition, Camp Hill, PA; Charles L. Bennett, South Carolina College of Pharmacy, Columbia, SC; and Katherine S. Virgo, Emory University, Atlanta, GA
| | - James N Frame
- Ethan Basch, Ronald C. Chen, and Stacie B. Dusetzina, University of North Carolina, Chapel Hill; Derek Raghavan, Carolinas Health Care/Levine Cancer Institute, Charlotte, NC; D. Andrew Loblaw, Odette Cancer Centre, Sunnybrook Health Sciences Centre; Ted Wootton, Patient Representatives, Toronto; Sebastian Hotte and Cindy Walker-Dilks, McMaster University; Cindy Walker-Dilks, Cancer Care Ontario, Hamilton; Eric Winquist, London Health Sciences Centre, London, Ontario; Fred Saad, University of Montreal, Montreal, Quebec, Canada; Thomas K. Oliver and R. Bryan Rumble, American Society of Clinical Oncology, Alexandria, VA; Michael Carducci, Johns Hopkins University, Baltimore, MD; James N. Frame, Charleston Area Medical Center Health Systems, Charleston, WV; Kristina Garrels, Private Practice, Fargo, ND; Michael W. Kattan, Cleveland Clinic, Cleveland, OH; Mary-Ellen Taplin, Dana-Farber Cancer Institute, Boston, MA; James Williams, Pennsylvania Prostate Cancer Coalition, Camp Hill, PA; Charles L. Bennett, South Carolina College of Pharmacy, Columbia, SC; and Katherine S. Virgo, Emory University, Atlanta, GA
| | - Kristina Garrels
- Ethan Basch, Ronald C. Chen, and Stacie B. Dusetzina, University of North Carolina, Chapel Hill; Derek Raghavan, Carolinas Health Care/Levine Cancer Institute, Charlotte, NC; D. Andrew Loblaw, Odette Cancer Centre, Sunnybrook Health Sciences Centre; Ted Wootton, Patient Representatives, Toronto; Sebastian Hotte and Cindy Walker-Dilks, McMaster University; Cindy Walker-Dilks, Cancer Care Ontario, Hamilton; Eric Winquist, London Health Sciences Centre, London, Ontario; Fred Saad, University of Montreal, Montreal, Quebec, Canada; Thomas K. Oliver and R. Bryan Rumble, American Society of Clinical Oncology, Alexandria, VA; Michael Carducci, Johns Hopkins University, Baltimore, MD; James N. Frame, Charleston Area Medical Center Health Systems, Charleston, WV; Kristina Garrels, Private Practice, Fargo, ND; Michael W. Kattan, Cleveland Clinic, Cleveland, OH; Mary-Ellen Taplin, Dana-Farber Cancer Institute, Boston, MA; James Williams, Pennsylvania Prostate Cancer Coalition, Camp Hill, PA; Charles L. Bennett, South Carolina College of Pharmacy, Columbia, SC; and Katherine S. Virgo, Emory University, Atlanta, GA
| | - Sebastien Hotte
- Ethan Basch, Ronald C. Chen, and Stacie B. Dusetzina, University of North Carolina, Chapel Hill; Derek Raghavan, Carolinas Health Care/Levine Cancer Institute, Charlotte, NC; D. Andrew Loblaw, Odette Cancer Centre, Sunnybrook Health Sciences Centre; Ted Wootton, Patient Representatives, Toronto; Sebastian Hotte and Cindy Walker-Dilks, McMaster University; Cindy Walker-Dilks, Cancer Care Ontario, Hamilton; Eric Winquist, London Health Sciences Centre, London, Ontario; Fred Saad, University of Montreal, Montreal, Quebec, Canada; Thomas K. Oliver and R. Bryan Rumble, American Society of Clinical Oncology, Alexandria, VA; Michael Carducci, Johns Hopkins University, Baltimore, MD; James N. Frame, Charleston Area Medical Center Health Systems, Charleston, WV; Kristina Garrels, Private Practice, Fargo, ND; Michael W. Kattan, Cleveland Clinic, Cleveland, OH; Mary-Ellen Taplin, Dana-Farber Cancer Institute, Boston, MA; James Williams, Pennsylvania Prostate Cancer Coalition, Camp Hill, PA; Charles L. Bennett, South Carolina College of Pharmacy, Columbia, SC; and Katherine S. Virgo, Emory University, Atlanta, GA
| | - Michael W Kattan
- Ethan Basch, Ronald C. Chen, and Stacie B. Dusetzina, University of North Carolina, Chapel Hill; Derek Raghavan, Carolinas Health Care/Levine Cancer Institute, Charlotte, NC; D. Andrew Loblaw, Odette Cancer Centre, Sunnybrook Health Sciences Centre; Ted Wootton, Patient Representatives, Toronto; Sebastian Hotte and Cindy Walker-Dilks, McMaster University; Cindy Walker-Dilks, Cancer Care Ontario, Hamilton; Eric Winquist, London Health Sciences Centre, London, Ontario; Fred Saad, University of Montreal, Montreal, Quebec, Canada; Thomas K. Oliver and R. Bryan Rumble, American Society of Clinical Oncology, Alexandria, VA; Michael Carducci, Johns Hopkins University, Baltimore, MD; James N. Frame, Charleston Area Medical Center Health Systems, Charleston, WV; Kristina Garrels, Private Practice, Fargo, ND; Michael W. Kattan, Cleveland Clinic, Cleveland, OH; Mary-Ellen Taplin, Dana-Farber Cancer Institute, Boston, MA; James Williams, Pennsylvania Prostate Cancer Coalition, Camp Hill, PA; Charles L. Bennett, South Carolina College of Pharmacy, Columbia, SC; and Katherine S. Virgo, Emory University, Atlanta, GA
| | - Derek Raghavan
- Ethan Basch, Ronald C. Chen, and Stacie B. Dusetzina, University of North Carolina, Chapel Hill; Derek Raghavan, Carolinas Health Care/Levine Cancer Institute, Charlotte, NC; D. Andrew Loblaw, Odette Cancer Centre, Sunnybrook Health Sciences Centre; Ted Wootton, Patient Representatives, Toronto; Sebastian Hotte and Cindy Walker-Dilks, McMaster University; Cindy Walker-Dilks, Cancer Care Ontario, Hamilton; Eric Winquist, London Health Sciences Centre, London, Ontario; Fred Saad, University of Montreal, Montreal, Quebec, Canada; Thomas K. Oliver and R. Bryan Rumble, American Society of Clinical Oncology, Alexandria, VA; Michael Carducci, Johns Hopkins University, Baltimore, MD; James N. Frame, Charleston Area Medical Center Health Systems, Charleston, WV; Kristina Garrels, Private Practice, Fargo, ND; Michael W. Kattan, Cleveland Clinic, Cleveland, OH; Mary-Ellen Taplin, Dana-Farber Cancer Institute, Boston, MA; James Williams, Pennsylvania Prostate Cancer Coalition, Camp Hill, PA; Charles L. Bennett, South Carolina College of Pharmacy, Columbia, SC; and Katherine S. Virgo, Emory University, Atlanta, GA
| | - Fred Saad
- Ethan Basch, Ronald C. Chen, and Stacie B. Dusetzina, University of North Carolina, Chapel Hill; Derek Raghavan, Carolinas Health Care/Levine Cancer Institute, Charlotte, NC; D. Andrew Loblaw, Odette Cancer Centre, Sunnybrook Health Sciences Centre; Ted Wootton, Patient Representatives, Toronto; Sebastian Hotte and Cindy Walker-Dilks, McMaster University; Cindy Walker-Dilks, Cancer Care Ontario, Hamilton; Eric Winquist, London Health Sciences Centre, London, Ontario; Fred Saad, University of Montreal, Montreal, Quebec, Canada; Thomas K. Oliver and R. Bryan Rumble, American Society of Clinical Oncology, Alexandria, VA; Michael Carducci, Johns Hopkins University, Baltimore, MD; James N. Frame, Charleston Area Medical Center Health Systems, Charleston, WV; Kristina Garrels, Private Practice, Fargo, ND; Michael W. Kattan, Cleveland Clinic, Cleveland, OH; Mary-Ellen Taplin, Dana-Farber Cancer Institute, Boston, MA; James Williams, Pennsylvania Prostate Cancer Coalition, Camp Hill, PA; Charles L. Bennett, South Carolina College of Pharmacy, Columbia, SC; and Katherine S. Virgo, Emory University, Atlanta, GA
| | - Mary-Ellen Taplin
- Ethan Basch, Ronald C. Chen, and Stacie B. Dusetzina, University of North Carolina, Chapel Hill; Derek Raghavan, Carolinas Health Care/Levine Cancer Institute, Charlotte, NC; D. Andrew Loblaw, Odette Cancer Centre, Sunnybrook Health Sciences Centre; Ted Wootton, Patient Representatives, Toronto; Sebastian Hotte and Cindy Walker-Dilks, McMaster University; Cindy Walker-Dilks, Cancer Care Ontario, Hamilton; Eric Winquist, London Health Sciences Centre, London, Ontario; Fred Saad, University of Montreal, Montreal, Quebec, Canada; Thomas K. Oliver and R. Bryan Rumble, American Society of Clinical Oncology, Alexandria, VA; Michael Carducci, Johns Hopkins University, Baltimore, MD; James N. Frame, Charleston Area Medical Center Health Systems, Charleston, WV; Kristina Garrels, Private Practice, Fargo, ND; Michael W. Kattan, Cleveland Clinic, Cleveland, OH; Mary-Ellen Taplin, Dana-Farber Cancer Institute, Boston, MA; James Williams, Pennsylvania Prostate Cancer Coalition, Camp Hill, PA; Charles L. Bennett, South Carolina College of Pharmacy, Columbia, SC; and Katherine S. Virgo, Emory University, Atlanta, GA
| | - Cindy Walker-Dilks
- Ethan Basch, Ronald C. Chen, and Stacie B. Dusetzina, University of North Carolina, Chapel Hill; Derek Raghavan, Carolinas Health Care/Levine Cancer Institute, Charlotte, NC; D. Andrew Loblaw, Odette Cancer Centre, Sunnybrook Health Sciences Centre; Ted Wootton, Patient Representatives, Toronto; Sebastian Hotte and Cindy Walker-Dilks, McMaster University; Cindy Walker-Dilks, Cancer Care Ontario, Hamilton; Eric Winquist, London Health Sciences Centre, London, Ontario; Fred Saad, University of Montreal, Montreal, Quebec, Canada; Thomas K. Oliver and R. Bryan Rumble, American Society of Clinical Oncology, Alexandria, VA; Michael Carducci, Johns Hopkins University, Baltimore, MD; James N. Frame, Charleston Area Medical Center Health Systems, Charleston, WV; Kristina Garrels, Private Practice, Fargo, ND; Michael W. Kattan, Cleveland Clinic, Cleveland, OH; Mary-Ellen Taplin, Dana-Farber Cancer Institute, Boston, MA; James Williams, Pennsylvania Prostate Cancer Coalition, Camp Hill, PA; Charles L. Bennett, South Carolina College of Pharmacy, Columbia, SC; and Katherine S. Virgo, Emory University, Atlanta, GA
| | - James Williams
- Ethan Basch, Ronald C. Chen, and Stacie B. Dusetzina, University of North Carolina, Chapel Hill; Derek Raghavan, Carolinas Health Care/Levine Cancer Institute, Charlotte, NC; D. Andrew Loblaw, Odette Cancer Centre, Sunnybrook Health Sciences Centre; Ted Wootton, Patient Representatives, Toronto; Sebastian Hotte and Cindy Walker-Dilks, McMaster University; Cindy Walker-Dilks, Cancer Care Ontario, Hamilton; Eric Winquist, London Health Sciences Centre, London, Ontario; Fred Saad, University of Montreal, Montreal, Quebec, Canada; Thomas K. Oliver and R. Bryan Rumble, American Society of Clinical Oncology, Alexandria, VA; Michael Carducci, Johns Hopkins University, Baltimore, MD; James N. Frame, Charleston Area Medical Center Health Systems, Charleston, WV; Kristina Garrels, Private Practice, Fargo, ND; Michael W. Kattan, Cleveland Clinic, Cleveland, OH; Mary-Ellen Taplin, Dana-Farber Cancer Institute, Boston, MA; James Williams, Pennsylvania Prostate Cancer Coalition, Camp Hill, PA; Charles L. Bennett, South Carolina College of Pharmacy, Columbia, SC; and Katherine S. Virgo, Emory University, Atlanta, GA
| | - Eric Winquist
- Ethan Basch, Ronald C. Chen, and Stacie B. Dusetzina, University of North Carolina, Chapel Hill; Derek Raghavan, Carolinas Health Care/Levine Cancer Institute, Charlotte, NC; D. Andrew Loblaw, Odette Cancer Centre, Sunnybrook Health Sciences Centre; Ted Wootton, Patient Representatives, Toronto; Sebastian Hotte and Cindy Walker-Dilks, McMaster University; Cindy Walker-Dilks, Cancer Care Ontario, Hamilton; Eric Winquist, London Health Sciences Centre, London, Ontario; Fred Saad, University of Montreal, Montreal, Quebec, Canada; Thomas K. Oliver and R. Bryan Rumble, American Society of Clinical Oncology, Alexandria, VA; Michael Carducci, Johns Hopkins University, Baltimore, MD; James N. Frame, Charleston Area Medical Center Health Systems, Charleston, WV; Kristina Garrels, Private Practice, Fargo, ND; Michael W. Kattan, Cleveland Clinic, Cleveland, OH; Mary-Ellen Taplin, Dana-Farber Cancer Institute, Boston, MA; James Williams, Pennsylvania Prostate Cancer Coalition, Camp Hill, PA; Charles L. Bennett, South Carolina College of Pharmacy, Columbia, SC; and Katherine S. Virgo, Emory University, Atlanta, GA
| | - Charles L Bennett
- Ethan Basch, Ronald C. Chen, and Stacie B. Dusetzina, University of North Carolina, Chapel Hill; Derek Raghavan, Carolinas Health Care/Levine Cancer Institute, Charlotte, NC; D. Andrew Loblaw, Odette Cancer Centre, Sunnybrook Health Sciences Centre; Ted Wootton, Patient Representatives, Toronto; Sebastian Hotte and Cindy Walker-Dilks, McMaster University; Cindy Walker-Dilks, Cancer Care Ontario, Hamilton; Eric Winquist, London Health Sciences Centre, London, Ontario; Fred Saad, University of Montreal, Montreal, Quebec, Canada; Thomas K. Oliver and R. Bryan Rumble, American Society of Clinical Oncology, Alexandria, VA; Michael Carducci, Johns Hopkins University, Baltimore, MD; James N. Frame, Charleston Area Medical Center Health Systems, Charleston, WV; Kristina Garrels, Private Practice, Fargo, ND; Michael W. Kattan, Cleveland Clinic, Cleveland, OH; Mary-Ellen Taplin, Dana-Farber Cancer Institute, Boston, MA; James Williams, Pennsylvania Prostate Cancer Coalition, Camp Hill, PA; Charles L. Bennett, South Carolina College of Pharmacy, Columbia, SC; and Katherine S. Virgo, Emory University, Atlanta, GA
| | - Ted Wootton
- Ethan Basch, Ronald C. Chen, and Stacie B. Dusetzina, University of North Carolina, Chapel Hill; Derek Raghavan, Carolinas Health Care/Levine Cancer Institute, Charlotte, NC; D. Andrew Loblaw, Odette Cancer Centre, Sunnybrook Health Sciences Centre; Ted Wootton, Patient Representatives, Toronto; Sebastian Hotte and Cindy Walker-Dilks, McMaster University; Cindy Walker-Dilks, Cancer Care Ontario, Hamilton; Eric Winquist, London Health Sciences Centre, London, Ontario; Fred Saad, University of Montreal, Montreal, Quebec, Canada; Thomas K. Oliver and R. Bryan Rumble, American Society of Clinical Oncology, Alexandria, VA; Michael Carducci, Johns Hopkins University, Baltimore, MD; James N. Frame, Charleston Area Medical Center Health Systems, Charleston, WV; Kristina Garrels, Private Practice, Fargo, ND; Michael W. Kattan, Cleveland Clinic, Cleveland, OH; Mary-Ellen Taplin, Dana-Farber Cancer Institute, Boston, MA; James Williams, Pennsylvania Prostate Cancer Coalition, Camp Hill, PA; Charles L. Bennett, South Carolina College of Pharmacy, Columbia, SC; and Katherine S. Virgo, Emory University, Atlanta, GA
| | - R Bryan Rumble
- Ethan Basch, Ronald C. Chen, and Stacie B. Dusetzina, University of North Carolina, Chapel Hill; Derek Raghavan, Carolinas Health Care/Levine Cancer Institute, Charlotte, NC; D. Andrew Loblaw, Odette Cancer Centre, Sunnybrook Health Sciences Centre; Ted Wootton, Patient Representatives, Toronto; Sebastian Hotte and Cindy Walker-Dilks, McMaster University; Cindy Walker-Dilks, Cancer Care Ontario, Hamilton; Eric Winquist, London Health Sciences Centre, London, Ontario; Fred Saad, University of Montreal, Montreal, Quebec, Canada; Thomas K. Oliver and R. Bryan Rumble, American Society of Clinical Oncology, Alexandria, VA; Michael Carducci, Johns Hopkins University, Baltimore, MD; James N. Frame, Charleston Area Medical Center Health Systems, Charleston, WV; Kristina Garrels, Private Practice, Fargo, ND; Michael W. Kattan, Cleveland Clinic, Cleveland, OH; Mary-Ellen Taplin, Dana-Farber Cancer Institute, Boston, MA; James Williams, Pennsylvania Prostate Cancer Coalition, Camp Hill, PA; Charles L. Bennett, South Carolina College of Pharmacy, Columbia, SC; and Katherine S. Virgo, Emory University, Atlanta, GA
| | - Stacie B Dusetzina
- Ethan Basch, Ronald C. Chen, and Stacie B. Dusetzina, University of North Carolina, Chapel Hill; Derek Raghavan, Carolinas Health Care/Levine Cancer Institute, Charlotte, NC; D. Andrew Loblaw, Odette Cancer Centre, Sunnybrook Health Sciences Centre; Ted Wootton, Patient Representatives, Toronto; Sebastian Hotte and Cindy Walker-Dilks, McMaster University; Cindy Walker-Dilks, Cancer Care Ontario, Hamilton; Eric Winquist, London Health Sciences Centre, London, Ontario; Fred Saad, University of Montreal, Montreal, Quebec, Canada; Thomas K. Oliver and R. Bryan Rumble, American Society of Clinical Oncology, Alexandria, VA; Michael Carducci, Johns Hopkins University, Baltimore, MD; James N. Frame, Charleston Area Medical Center Health Systems, Charleston, WV; Kristina Garrels, Private Practice, Fargo, ND; Michael W. Kattan, Cleveland Clinic, Cleveland, OH; Mary-Ellen Taplin, Dana-Farber Cancer Institute, Boston, MA; James Williams, Pennsylvania Prostate Cancer Coalition, Camp Hill, PA; Charles L. Bennett, South Carolina College of Pharmacy, Columbia, SC; and Katherine S. Virgo, Emory University, Atlanta, GA
| | - Katherine S Virgo
- Ethan Basch, Ronald C. Chen, and Stacie B. Dusetzina, University of North Carolina, Chapel Hill; Derek Raghavan, Carolinas Health Care/Levine Cancer Institute, Charlotte, NC; D. Andrew Loblaw, Odette Cancer Centre, Sunnybrook Health Sciences Centre; Ted Wootton, Patient Representatives, Toronto; Sebastian Hotte and Cindy Walker-Dilks, McMaster University; Cindy Walker-Dilks, Cancer Care Ontario, Hamilton; Eric Winquist, London Health Sciences Centre, London, Ontario; Fred Saad, University of Montreal, Montreal, Quebec, Canada; Thomas K. Oliver and R. Bryan Rumble, American Society of Clinical Oncology, Alexandria, VA; Michael Carducci, Johns Hopkins University, Baltimore, MD; James N. Frame, Charleston Area Medical Center Health Systems, Charleston, WV; Kristina Garrels, Private Practice, Fargo, ND; Michael W. Kattan, Cleveland Clinic, Cleveland, OH; Mary-Ellen Taplin, Dana-Farber Cancer Institute, Boston, MA; James Williams, Pennsylvania Prostate Cancer Coalition, Camp Hill, PA; Charles L. Bennett, South Carolina College of Pharmacy, Columbia, SC; and Katherine S. Virgo, Emory University, Atlanta, GA
| |
Collapse
|
21
|
Graziani R, Guindani M, Thall PF. Bayesian nonparametric estimation of targeted agent effects on biomarker change to predict clinical outcome. Biometrics 2014; 71:188-197. [PMID: 25319212 DOI: 10.1111/biom.12250] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2013] [Revised: 08/01/2014] [Accepted: 09/01/2014] [Indexed: 11/30/2022]
Abstract
The effect of a targeted agent on a cancer patient's clinical outcome putatively is mediated through the agent's effect on one or more early biological events. This is motivated by pre-clinical experiments with cells or animals that identify such events, represented by binary or quantitative biomarkers. When evaluating targeted agents in humans, central questions are whether the distribution of a targeted biomarker changes following treatment, the nature and magnitude of this change, and whether it is associated with clinical outcome. Major difficulties in estimating these effects are that a biomarker's distribution may be complex, vary substantially between patients, and have complicated relationships with clinical outcomes. We present a probabilistically coherent framework for modeling and estimation in this setting, including a hierarchical Bayesian nonparametric mixture model for biomarkers that we use to define a functional profile of pre-versus-post-treatment biomarker distribution change. The functional is similar to the receiver operating characteristic used in diagnostic testing. The hierarchical model yields clusters of individual patient biomarker profile functionals, and we use the profile as a covariate in a regression model for clinical outcome. The methodology is illustrated by analysis of a dataset from a clinical trial in prostate cancer using imatinib to target platelet-derived growth factor, with the clinical aim to improve progression-free survival time.
Collapse
Affiliation(s)
| | - Michele Guindani
- University of Texas MD Anderson Cancer Center, Houston, Texas, U.S.A
| | - Peter F Thall
- University of Texas MD Anderson Cancer Center, Houston, Texas, U.S.A
| |
Collapse
|
22
|
Wan X, Corn PG, Yang J, Palanisamy N, Starbuck MW, Efstathiou E, Li Ning Tapia EM, Tapia EMLN, Zurita AJ, Aparicio A, Ravoori MK, Vazquez ES, Robinson DR, Wu YM, Cao X, Iyer MK, McKeehan W, Kundra V, Wang F, Troncoso P, Chinnaiyan AM, Logothetis CJ, Navone NM. Prostate cancer cell-stromal cell crosstalk via FGFR1 mediates antitumor activity of dovitinib in bone metastases. Sci Transl Med 2014; 6:252ra122. [PMID: 25186177 PMCID: PMC4407499 DOI: 10.1126/scitranslmed.3009332] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Bone is the most common site of prostate cancer (PCa) progression to a therapy-resistant, lethal phenotype. We found that blockade of fibroblast growth factor receptors (FGFRs) with the receptor tyrosine kinase inhibitor dovitinib has clinical activity in a subset of men with castration-resistant PCa and bone metastases. Our integrated analyses suggest that FGF signaling mediates a positive feedback loop between PCa cells and bone cells and that blockade of FGFR1 in osteoblasts partially mediates the antitumor activity of dovitinib by improving bone quality and by blocking PCa cell-bone cell interaction. These findings account for clinical observations such as reductions in lesion size and intensity on bone scans, lymph node size, and tumor-specific symptoms without proportional declines in serum prostate-specific antigen concentration. Our findings suggest that targeting FGFR has therapeutic activity in advanced PCa and provide direction for the development of therapies with FGFR inhibitors.
Collapse
MESH Headings
- Animals
- Antineoplastic Agents/pharmacology
- Antineoplastic Agents/therapeutic use
- Apoptosis/drug effects
- Apoptosis/genetics
- Benzimidazoles/pharmacology
- Benzimidazoles/therapeutic use
- Bone Neoplasms/drug therapy
- Bone Neoplasms/pathology
- Bone Neoplasms/secondary
- Bone and Bones/drug effects
- Bone and Bones/metabolism
- Cell Line, Tumor
- Disease Models, Animal
- Fibroblast Growth Factor 2/metabolism
- Gene Expression Regulation, Neoplastic/drug effects
- Humans
- Male
- Mice
- Neovascularization, Pathologic/drug therapy
- Neovascularization, Pathologic/pathology
- Osteoblasts/drug effects
- Osteoblasts/metabolism
- Prostatic Neoplasms/blood supply
- Prostatic Neoplasms/drug therapy
- Prostatic Neoplasms/genetics
- Prostatic Neoplasms/pathology
- Prostatic Neoplasms, Castration-Resistant/pathology
- Quinolones/pharmacology
- Quinolones/therapeutic use
- Receptor, Fibroblast Growth Factor, Type 1/genetics
- Receptor, Fibroblast Growth Factor, Type 1/metabolism
- Signal Transduction/drug effects
- Signal Transduction/genetics
- Stromal Cells/drug effects
- Stromal Cells/pathology
- Tumor Microenvironment/drug effects
- Xenograft Model Antitumor Assays
Collapse
Affiliation(s)
- Xinhai Wan
- Department of Genitourinary Medical Oncology and the David H. Koch Center for Applied Research of Genitourinary Cancers, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Paul G Corn
- Department of Genitourinary Medical Oncology and the David H. Koch Center for Applied Research of Genitourinary Cancers, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Jun Yang
- Department of Genitourinary Medical Oncology and the David H. Koch Center for Applied Research of Genitourinary Cancers, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Nallasivam Palanisamy
- Michigan Center for Translational Pathology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Michael W Starbuck
- Department of Genitourinary Medical Oncology and the David H. Koch Center for Applied Research of Genitourinary Cancers, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA. The Rolanette and Berdon Lawrence Bone Disease Program of Texas, Houston, TX 77030, USA
| | - Eleni Efstathiou
- Department of Genitourinary Medical Oncology and the David H. Koch Center for Applied Research of Genitourinary Cancers, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA. University of Athens Greece School of Medicine, Athens 11528, Greece
| | | | - Elsa M Li-Ning Tapia
- Department of Genitourinary Medical Oncology and the David H. Koch Center for Applied Research of Genitourinary Cancers, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Amado J Zurita
- Department of Genitourinary Medical Oncology and the David H. Koch Center for Applied Research of Genitourinary Cancers, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Ana Aparicio
- Department of Genitourinary Medical Oncology and the David H. Koch Center for Applied Research of Genitourinary Cancers, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Murali K Ravoori
- Department of Cancer Systems Imaging, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Elba S Vazquez
- Department of Biological Chemistry, University of Buenos Aires-National Research Council of Argentina (CONICET-IQUIBICEN), Ciudad Autonoma de Buenos Aires C1428EGA, Argentina
| | - Dan R Robinson
- Michigan Center for Translational Pathology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Yi-Mi Wu
- Michigan Center for Translational Pathology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Xuhong Cao
- Michigan Center for Translational Pathology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Matthew K Iyer
- Michigan Center for Translational Pathology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Wallace McKeehan
- Center for Cancer and Stem Cell Biology, IBT-Texas A&M Health Science Center, Houston, TX 77030, USA
| | - Vikas Kundra
- Department of Cancer Systems Imaging, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA. Department of Diagnostic Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Fen Wang
- Center for Cancer and Stem Cell Biology, IBT-Texas A&M Health Science Center, Houston, TX 77030, USA
| | - Patricia Troncoso
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Arul M Chinnaiyan
- Michigan Center for Translational Pathology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Christopher J Logothetis
- Department of Genitourinary Medical Oncology and the David H. Koch Center for Applied Research of Genitourinary Cancers, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Nora M Navone
- Department of Genitourinary Medical Oncology and the David H. Koch Center for Applied Research of Genitourinary Cancers, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA.
| |
Collapse
|
23
|
Heldin CH. Targeting the PDGF signaling pathway in tumor treatment. Cell Commun Signal 2013; 11:97. [PMID: 24359404 PMCID: PMC3878225 DOI: 10.1186/1478-811x-11-97] [Citation(s) in RCA: 329] [Impact Index Per Article: 29.9] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2013] [Accepted: 12/11/2013] [Indexed: 01/15/2023] Open
Abstract
Platelet-derived growth factor (PDGF) isoforms and PDGF receptors have important functions in the regulation of growth and survival of certain cell types during embryonal development and e.g. tissue repair in the adult. Overactivity of PDGF receptor signaling, by overexpression or mutational events, may drive tumor cell growth. In addition, pericytes of the vasculature and fibroblasts and myofibroblasts of the stroma of solid tumors express PDGF receptors, and PDGF stimulation of such cells promotes tumorigenesis. Inhibition of PDGF receptor signaling has proven to useful for the treatment of patients with certain rare tumors. Whether treatment with PDGF/PDGF receptor antagonists will be beneficial for more common malignancies is the subject for ongoing studies.
Collapse
Affiliation(s)
- Carl-Henrik Heldin
- Ludwig Institute for Cancer Research, Science for life laboratory, Uppsala University, Box 595SE-751 24 Uppsala, Sweden.
| |
Collapse
|
24
|
Kozakowski N, Hartmann C, Klingler HC, Susani M, Mazal PR, Scharrer A, Haitel A. Immunohistochemical expression of PDGFR, VEGF-C, and proteins of the mToR pathway before and after androgen deprivation therapy in prostate carcinoma: significant decrease after treatment. Target Oncol 2013; 9:359-66. [PMID: 24243494 DOI: 10.1007/s11523-013-0298-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2013] [Accepted: 10/30/2013] [Indexed: 12/23/2022]
Abstract
Targeted therapy in hormone refractory prostate cancer (HRPC) is currently under evaluation in many trials. The effect of androgen deprivation therapy (ADT) on many targets in prostate cancer is incompletely known. For the first time, immunohistochemical expression of the platelet-derived growth factor receptor (PDGFR), epidermal growth factor receptor (EGFR), vascular endothelial growth factor C (VEGF-C), mammalian target of rapamycin (mToR), p70 ribosomal protein S6 kinase 1 (PS6K), human epidermal growth factor receptor 2 (c-erbB-2), and carbonic anhydrase IX (CA9) was evaluated in 44 patients with prostate carcinoma treated with or without ADT, at biopsy time and after radical prostatectomy. PDGFR, VEGF-C, mToR, and PS6K expression was significantly reduced (p = 0.002, p = 0.035, p = 0.025, and p = 0.033, respectively) after ADT, whereas expression of EGFR, c-erbB-2, and CA9 was not influenced by ADT. In conclusion, targeting PDGFR, VEGF-C, mToR, or PS6K after ADT should be considered with precaution, as those targets can severely be altered or functionally deregulated by ADT.
Collapse
Affiliation(s)
- Nicolas Kozakowski
- Clinical Institute for Pathology, Medical University of Vienna, Währinger Gürtel 18-20, 1090, Vienna, Austria
| | | | | | | | | | | | | |
Collapse
|
25
|
Lee BY, Hochgräfe F, Lin HM, Castillo L, Wu J, Raftery MJ, Martin Shreeve S, Horvath LG, Daly RJ. Phosphoproteomic profiling identifies focal adhesion kinase as a mediator of docetaxel resistance in castrate-resistant prostate cancer. Mol Cancer Ther 2013; 13:190-201. [PMID: 24194567 DOI: 10.1158/1535-7163.mct-13-0225-t] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Docetaxel remains the standard-of-care for men diagnosed with metastatic castrate-resistant prostate cancer (CRPC). However, only approximately 50% of patients benefit from treatment and all develop docetaxel-resistant disease. Here, we characterize global perturbations in tyrosine kinase signaling associated with docetaxel resistance and thereby develop a potential therapeutic strategy to reverse this phenotype. Using quantitative mass spectrometry-based phosphoproteomics, we identified that metastatic docetaxel-resistant prostate cancer cell lines (DU145-Rx and PC3-Rx) exhibit increased phosphorylation of focal adhesion kinase (FAK) on Y397 and Y576, in comparison with parental controls (DU145 and PC3, respectively). Bioinformatic analyses identified perturbations in pathways regulating focal adhesions and the actin cytoskeleton and in protein-protein interaction networks related to these pathways in docetaxel-resistant cells. Treatment with the FAK tyrosine kinase inhibitor (TKI) PF-00562271 reduced FAK phosphorylation in the resistant cells, but did not affect cell viability or Akt phosphorylation. Docetaxel administration reduced FAK and Akt phosphorylation, whereas cotreatment with PF-00562271 and docetaxel resulted in an additive attenuation of FAK and Akt phosphorylation and overcame the chemoresistant phenotype. The enhanced efficacy of cotreatment was due to increased autophagic cell death, rather than apoptosis. These data strongly support that enhanced FAK activation mediates chemoresistance in CRPC, and identify a potential clinical niche for FAK TKIs, where coadministration with docetaxel may be used in patients with CRPC to overcome chemoresistance.
Collapse
Affiliation(s)
- Brian Y Lee
- Corresponding Author: Roger J. Daly, Department of Biochemistry and Molecular Biology, School of Biomedical Sciences, Level 1, Building 77, Monash University, VIC 3800, Australia. Telephone: 61-3-990-29301;
| | | | | | | | | | | | | | | | | |
Collapse
|
26
|
Quinn DI, Tangen CM, Hussain M, Lara PN, Goldkorn A, Moinpour CM, Garzotto MG, Mack PC, Carducci MA, Monk JP, Twardowski PW, Van Veldhuizen PJ, Agarwal N, Higano CS, Vogelzang NJ, Thompson IM. Docetaxel and atrasentan versus docetaxel and placebo for men with advanced castration-resistant prostate cancer (SWOG S0421): a randomised phase 3 trial. Lancet Oncol 2013; 14:893-900. [PMID: 23871417 DOI: 10.1016/s1470-2045(13)70294-8] [Citation(s) in RCA: 119] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
BACKGROUND The endothelin pathway has a role in bone metastases, which are characteristic of advanced prostate cancer. Atrasentan, an endothelin receptor antagonist, has shown activity in prostate cancer. We therefore assessed its effect on survival in patients with castration-resistant prostate cancer with bone metastases. METHODS In a double-blind phase 3 trial, men with metastatic castration-resistant prostate cancer, stratified for progression type (prostate-specific antigen or radiological), baseline pain, extraskeletal metastases, and bisphosphonate use, were randomly assigned in a 1:1 ratio to docetaxel (75 mg/m(2) every 21 days, intravenously) with atrasentan (10 mg/day, orally) or placebo for up to 12 cycles and treated until disease progression or unacceptable toxicity. Patients who did not progress on treatment were permitted to continue atrasentan or placebo for up to 52 weeks. Coprimary endpoints were progression-free survival (PFS) and overall survival. Analysis was by intention to treat. This trial is registered with ClinicalTrials.gov, number NCT00134056. FINDINGS 498 patients were randomly assigned to the atrasentan group and 496 to the placebo group. The trial was halted early for futility in April, 2011, after a planned interim analysis. Median PFS was 9·2 months (95% CI 8·5-9·9) in the atrasentan group and 9·1 months (8·4-10·2) in the placebo group (hazard ratio 1·02, 0·89-1·16; p=0·81). Median overall survival was 17·8 months (16·4-19·8) in the atrasentan group versus 17·6 months (16·4-20·1) in the placebo group (1·04, 0·90-1·19; p=0·64). 278 (57%) of 492 patients in the atrasentan group had grade 3 and greater toxicity compared with 294 (60%) of 486 in the placebo group (p=0·22). Three deaths in the atrasentan group and seven in the placebo group were judged to be possibly or probably due to protocol treatment. INTERPRETATION Atrasentan, when added to docetaxel, does not improve overall survival or PFS in men with castration-resistant prostate cancer and bone metastases; therefore, single-agent docetaxel should remain as one of the standard treatments. FUNDED National Cancer Institute, Sanofi-Aventis, and Abbott Laboratories.
Collapse
Affiliation(s)
- David I Quinn
- University of Southern California Norris Comprehensive Cancer Center, Los Angeles, CA 90033, USA.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
27
|
Loblaw DA, Walker-Dilks C, Winquist E, Hotte SJ. Systemic therapy in men with metastatic castration-resistant prostate cancer: a systematic review. Clin Oncol (R Coll Radiol) 2013; 25:406-30. [PMID: 23587782 DOI: 10.1016/j.clon.2013.03.002] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2012] [Revised: 01/21/2013] [Accepted: 02/19/2013] [Indexed: 11/25/2022]
Abstract
AIMS Since 2004, docetaxel-based chemotherapy has been the standard of care for men with metastatic castration-resistant prostate cancer (mCRPC), but recently randomised controlled trials (RCTs) of novel agents have shown promise in extending overall survival. These trials have evaluated agents delivered before chemotherapy, to replace or supplement docetaxel, or addressed treatment options for men who have progressed on docetaxel therapy. This review was undertaken to determine which systemic therapies improve cancer- or patient-related outcomes in men with mCRPC. MATERIALS AND METHODS Searches were carried out in MEDLINE, EMBASE, the Cochrane Library and relevant conference proceedings. Eligible articles included RCTs comparing systemic therapy or combination (excluding primary or secondary androgen deprivation therapy, bone protective agents or radionuclides) with placebo or other agents in men with mCRPC. RESULTS Twenty-five RCTs met the selection criteria. In chemotherapy-naive patients, targeted therapy with tasquinimod conferred a benefit in progression-free survival. Immunotherapy with sipuleucel-T extended overall survival and was well tolerated, but had no effect on the time to disease progression. Hypercastration with abiraterone extended progression-free survival, whereas overall survival was improved but not statistically proven. In the chemotherapy setting, updated and new trials of docetaxel alone confirmed the survival benefit seen in previous studies. A survival benefit with the addition of estramustine to docetaxel shown in a previous study did not lead to an improvement in pain palliation or quality of life. Trials of combining targeted therapies with docetaxel generally did not extend survival. The addition of bevacizumab improved progression-free survival, but not overall survival. The addition of GVAX immunotherapy or calcitriol was harmful. In the post-chemotherapy setting, progression-free and overall survival benefits were detected with cabazitaxel, abiraterone and enzalutamide. Cabazitaxel was associated with greater toxicity, whereas abiraterone and enzalutamide had less severe adverse effects. Satraplatin and sunitinib both extended progression-free survival, but did not improve overall survival. CONCLUSION Docetaxel-based chemotherapy remains the standard of care in men with mCRPC who are candidates for palliative systemic therapy. Promising results are emerging with sipuleucel-T and abiraterone in the pre-docetaxel setting and cabazitaxel, abiraterone and enzalutamide in patients who progress on or after docetaxel. Further research to determine the optimal choice, sequence or even the combination of these agents is necessary.
Collapse
Affiliation(s)
- D A Loblaw
- Sunnybrook Health Sciences Centre, Odette Cancer Centre, Toronto, Ontario, Canada.
| | | | | | | | | |
Collapse
|
28
|
Rosenberg A, Mathew P. Imatinib and prostate cancer: lessons learned from targeting the platelet-derived growth factor receptor. Expert Opin Investig Drugs 2013; 22:787-94. [PMID: 23540855 DOI: 10.1517/13543784.2013.787409] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
INTRODUCTION The platelet derived growth factor (PDGF) signaling pathway has been implicated in both epithelial and stromal mechanisms of prostate cancer progression and postulated as a target for therapy in bone metastases. Imatinib mesylate is a potent inhibitor of the platelet-derived growth factor receptor (PDGFR) and its activity has been tested in preclinical models and in Phase I and II clinical trials. AREAS COVERED This review summarizes the preclinical data on PDGF/PDGFR in prostate cancer, and reviews the clinical and correlative data using imatinib as a PDGFR inhibitor. EXPERT OPINION To date, the use of imatinib to treat men with prostate cancer has been ineffective, and PDGFR inhibition may in fact accelerate advanced forms of the disease and antagonize taxane efficacy. Given the major discordance between preclinical models and clinical experimentation, an accurate understanding of the PDGF-regulated interactions between metastatic prostate cancer and the bone micro-environment is evidently warranted. Correlations of pharmacodynamic monitoring of imatinib-induced PDGFR inhibition with progression-free and overall survival outcomes have led to the hypothesis that PDGF may function as a homeostatic factor in bone metastases. Recent laboratory studies defining PDGFR-regulated pericytes as gatekeepers of metastases may relate to these clinical observations.
Collapse
Affiliation(s)
- Aaron Rosenberg
- Tufts Medical Center, Department of Hematology and Oncology, 800 Washington St, Boston, MA 02111, USA
| | | |
Collapse
|
29
|
Bauman JE, Eaton KD, Wallace SG, Carr LL, Lee SJ, Jones DV, Arias-Pulido H, Cerilli LA, Martins RG. A Phase II study of pulse dose imatinib mesylate and weekly paclitaxel in patients aged 70 and over with advanced non-small cell lung cancer. BMC Cancer 2012; 12:449. [PMID: 23033932 PMCID: PMC3517479 DOI: 10.1186/1471-2407-12-449] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2012] [Accepted: 10/02/2012] [Indexed: 11/28/2022] Open
Abstract
Background In non-small cell lung cancer (NSCLC), interstitial hypertension is a barrier to chemotherapy delivery, and is mediated by platelet derived growth factor receptor (PDGFR). Antagonizing PDGFR with imatinib may improve intra-tumoral delivery of paclitaxel, increasing response rate (RR). Methods This single-stage, open-label phase II study evaluated pulse dose imatinib and weekly paclitaxel in elderly patients with advanced NSCLC. Eligible patients were aged ≥ 70 with untreated, stage IIIB-IV NSCLC and ECOG performance status 0-2. Primary endpoint was RR. Secondary endpoints included median progression free and overall survival (PFS, OS) and correlatives of PDGFR pathway activation. Baseline Charlson Comorbidity Index (CCI) and Vulnerable Elder Survey-13 (VES-13) were correlated with outcomes. Results Thirty-four patients with median age 75 enrolled. Eleven of 29 (38%) were frail by VES-13 score. Overall RR was 11/34 (32%; 95% CI 17%-51%), meeting the primary endpoint. Median PFS and OS were 3.6 and 7.3 months, respectively. High tumoral PDGF-B expression predicted inferior PFS. Frail patients by VES-13 had significantly worse median PFS (3.2 vs. 4.5 months; p=0.02) and OS (4.8 vs. 12 months; p=0.02) than non-frail. Conclusions The combination of imatinib and paclitaxel had encouraging activity as measured by the primary endpoint of RR. However, PFS and OS were typical for elderly patients treated with single agent chemotherapy and the regimen is not recommended for further study. Adjunct imatinib did not overcome the established association of tumoral PDGF-B expression with inferior PFS. VES-13 was a powerful predictor of poor survival outcomes. Frailty should be further studied as a predictor of non-benefit from chemotherapy. Trial Registration ClinicalTrials.gov NCT01011075
Collapse
Affiliation(s)
- Julie E Bauman
- Department of Internal Medicine, Division of Hematology/Oncology and Biostatistics, University of New Mexico Cancer Center, Albuquerque, New Mexico, USA.
| | | | | | | | | | | | | | | | | |
Collapse
|
30
|
Som A, Tu SM, Liu J, Wang X, Qiao W, Logothetis C, Corn PG. Response in bone turnover markers during therapy predicts overall survival in patients with metastatic prostate cancer: analysis of three clinical trials. Br J Cancer 2012; 107:1547-53. [PMID: 23033003 PMCID: PMC3493771 DOI: 10.1038/bjc.2012.436] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Background: The bone-forming metastases of prostate cancer result from complex stromal–epithelial interactions within the tumour microenvironment. Autocrine–paracrine signalling pathways between prostate cancer epithelial cells, osteoblasts, and osteoclasts stimulate aberrant bone remodelling, and the activity of these three cell populations can be quantitatively measured using prostate-specific antigen (PSA), bone-specific alkaline phosphatase (BAP) and urine N-telopeptide (uNTx), respectively. The purpose of the present study was to test the hypothesis that serial measurements of BAP and uNTx during therapy would facilitate monitoring of disease activity and predict the overall survival (OS) in patients with metastatic prostate cancer receiving therapy. Methods: Radionuclide bone scan, PSA, BAP, and uNTx data were retrospectively analysed from three clinical trials in patients with metastatic prostate cancer conducted at our institution. Qualitative changes in bone scans and quantitative changes in PSA, BAP, and uNTx concentrations during therapy were correlated with OS. Results: Baseline levels of BAP, but not PSA, were prognostic for OS in both androgen-dependent and castrate-resistant disease. A reduction in PSA, BAP, uNTx, or BAP/uNTx on therapy was predictive of improved OS in both patient groups. Conversely, an increase in PSA, or BAP on therapy was predictive of worse OS in both patient groups. Baseline number of lesions and response on bone scan during therapy were neither prognostic nor predictive of OS in either patient group. Conclusion: These observations support the concept that serial measurements of bone turnover metabolites during therapy function as clinically informative predictive biomarkers in patients with advanced prostate cancer and skeletal metastases. PSA measurements and bone scans remain essential to monitor the overall disease activity and determine the anatomic distribution of skeletal metastases.
Collapse
Affiliation(s)
- A Som
- Department of Genitourinary Medical Oncology, Unit 1374, The University of Texas MD Anderson Cancer Center, 1155 Herman Pressler, Houston, TX 77230, USA
| | | | | | | | | | | | | |
Collapse
|
31
|
Zengerling F, Streicher W, Schrader AJ, Schrader M, Nitzsche B, Cronauer MV, Höpfner M. Effects of sorafenib on C-terminally truncated androgen receptor variants in human prostate cancer cells. Int J Mol Sci 2012; 13:11530-11542. [PMID: 23109869 PMCID: PMC3472761 DOI: 10.3390/ijms130911530] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2012] [Revised: 09/05/2012] [Accepted: 09/06/2012] [Indexed: 01/26/2023] Open
Abstract
Recent evidence suggests that the development of castration resistant prostate cancer (CRPCa) is commonly associated with an aberrant, ligand-independent activation of the androgen receptor (AR). A putative mechanism allowing prostate cancer (PCa) cells to grow under low levels of androgens, is the expression of constitutively active, C-terminally truncated AR lacking the AR-ligand binding domain (LBD). Due to the absence of a LBD, these receptors, termed ARΔLBD, are unable to respond to any form of anti-hormonal therapies. In this study we demonstrate that the multikinase inhibitor sorafenib inhibits AR as well as ARΔLBD-signalling in CRPCa cells. This inhibition was paralleled by proteasomal degradation of the AR- and ARΔLBD-molecules. In line with these observations, maximal antiproliferative effects of sorafenib were achieved in AR and ARΔLBD-positive PCa cells. The present findings warrant further investigations on sorafenib as an option for the treatment of advanced AR-positive PCa.
Collapse
Affiliation(s)
- Friedemann Zengerling
- Department of Urology, Ulm University, Ulm 89075, Germany; E-Mails: (A.J.S.); (M.S.); (M.V.C.)
- Department of Physiology, Charité Universitätsmedizin, Campus Benjamin Franklin, Berlin 14195, Germany; E-Mails: (B.N.); (M.H.)
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +49-731-500-58036; Fax: +49-731-500-58002
| | - Wolfgang Streicher
- Institute of General Zoology and Endocrinology, Ulm University, Ulm 89069, Germany; E-Mail:
| | - Andres J. Schrader
- Department of Urology, Ulm University, Ulm 89075, Germany; E-Mails: (A.J.S.); (M.S.); (M.V.C.)
| | - Mark Schrader
- Department of Urology, Ulm University, Ulm 89075, Germany; E-Mails: (A.J.S.); (M.S.); (M.V.C.)
| | - Bianca Nitzsche
- Department of Physiology, Charité Universitätsmedizin, Campus Benjamin Franklin, Berlin 14195, Germany; E-Mails: (B.N.); (M.H.)
| | - Marcus V. Cronauer
- Department of Urology, Ulm University, Ulm 89075, Germany; E-Mails: (A.J.S.); (M.S.); (M.V.C.)
| | - Michael Höpfner
- Department of Physiology, Charité Universitätsmedizin, Campus Benjamin Franklin, Berlin 14195, Germany; E-Mails: (B.N.); (M.H.)
| |
Collapse
|
32
|
Nabhan C, Villines D, Valdez TV, Tolzien K, Lestingi TM, Bitran JD, Christner SM, Egorin MJ, Beumer JH. Phase I study investigating the safety and feasibility of combining imatinib mesylate (Gleevec) with sorafenib in patients with refractory castration-resistant prostate cancer. Br J Cancer 2012; 107:592-7. [PMID: 22805325 PMCID: PMC3419960 DOI: 10.1038/bjc.2012.312] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Background: Determining the maximum tolerated dose (MTD) and the dose-limiting toxicity (DLT) of sorafenib (S) plus imatinib (IM) in castration-resistant prostate cancer (CRPC) patients. Methods: Refractory CRPC patients were enrolled onto this 3+3 dose escalation designed study. Imatinib pharmacokinetics (PK) were determined on day 15, 4 h post dose with a validated LC–MS assay. Results: Seventeen patients were enrolled; 10 evaluable (6 at 400 mg S qd with 300 mg IM qd (DL0) and 4 at 400 mg S bid with 300 mg IM qd (DL1)); inevaluable patients received <1 cycle. The median age was 73 (57–89); median prostatic serum antigen was 284 ng ml−1 (11.7–9027). Median number of prior non-hormonal therapies was 3 (1–12). Dose-limiting toxicities were diarrhoea and hand-foot syndrome. Maximum tolerated dose was 400 mg S and 300 mg IM both daily. No biochemical responses were observed. Two patients had stable disease by RECIST. Median time to progression was 2 months (1–5). Median OS was 6 months (1–30+) with 3/17 patients (17%) alive at 21 months median follow-up. Ten patients had PK data suggesting that S reduced IM clearance by 55%, resulting in 77% increased exposure (P=0.005; compared with historical data). Conclusion: This is the first report showing that S+IM can be administered in CRPC at a dose of 400 mg S and 300 mg IM, daily.
Collapse
Affiliation(s)
- C Nabhan
- Department of Medicine, Division of Hematology and Oncology, Advocate Lutheran General Hospital, Park Ridge, IL, USA.
| | | | | | | | | | | | | | | | | |
Collapse
|
33
|
Barni S, Cabiddu M, Guarneri P, Lonati V, Petrelli F. The risk for anemia with targeted therapies for solid tumors. Oncologist 2012; 17:715-24. [PMID: 22531357 DOI: 10.1634/theoncologist.2012-0024] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Anemia is a common manifestation in patients with cancer. Little is known about the frequency of and risk for anemia with targeted therapies used to treat solid tumors. METHODS We performed a meta-analysis of randomized controlled trials of solid tumors by comparing targeted therapy (alone or in combination) with standard therapy alone to calculate the incidence and relative risk (RR) for anemia events associated with these agents. Overall, 24,310 patients were included in the analysis. RESULTS The addition of targeted therapies to standard treatment (chemotherapy or placebo/best supportive care) increased the risk for all grades of anemia by 7%. The RR for all grades (incidence, 44%) and grades 1-2 (incidence, 38.9%) of anemia was higher with biological therapies alone but not when combined with chemotherapy. The risk was significant for erlotinib, trastuzumab, and sunitinib. Bevacizumab was associated with a lower risk for anemia. Anti-epidermal growth factor receptor, anti-human epidermal growth factor receptor 2, anti-vascular endothelial growth factor receptors, and tyrosine kinase inhibitors predicted RRs of 1.24, 1.20, 0.82, and 1.33, respectively, and all of these values were significant. CONCLUSION Grade 1-2 anemia is frequently associated with biological agents. The risk is particularly associated with small-molecule tyrosine kinase inhibitors (gefitinib and erlotinib), breast cancer, and lung cancer. Erythropoiesis-stimulating agents are not labeled for use with targeted therapies (without chemotherapy) and the treatment is supportive only.
Collapse
Affiliation(s)
- Sandro Barni
- Oncology Department, Medical Oncology Unit, Azienda Ospedaliera Treviglio, Italy
| | | | | | | | | |
Collapse
|
34
|
Zurita AJ, George DJ, Shore ND, Liu G, Wilding G, Hutson TE, Kozloff M, Mathew P, Harmon CS, Wang SL, Chen I, Chow Maneval E, Logothetis CJ. Sunitinib in combination with docetaxel and prednisone in chemotherapy-naive patients with metastatic, castration-resistant prostate cancer: a phase 1/2 clinical trial. Ann Oncol 2012; 23:688-694. [PMID: 21821830 PMCID: PMC4415089 DOI: 10.1093/annonc/mdr349] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2011] [Revised: 06/20/2011] [Accepted: 06/24/2011] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND This phase 1/2 study assessed sunitinib combined with docetaxel (Taxotere) and prednisone in chemotherapy-naive metastatic, castration-resistant prostate cancer (mCRPC) patients. PATIENTS AND METHODS To determine the recommended phase 2 dose (RP2D), 25 patients in four dose escalation cohorts received 3-week cycles of sunitinib (2 weeks on, 1 week off), docetaxel and prednisone, preceded by a 4-week sunitinib 50 mg/day lead in. RP2D was evaluated in 55 additional patients. The primary end point was prostate-specific antigen (PSA) response rate. RESULTS One phase 1 dose-limiting toxicity occurred (grade 3 hyponatremia). The RP2D was sunitinib 37.5 mg/day, docetaxel 75 mg/m(2) and prednisone 5 mg b.i.d. During phase 2, confirmed PSA responses occurred in 31 patients [56.4% (95% confidence interval 42.3-69.7)]. Median time to PSA progression was 9.8 months. Forty-one patients (75%) were treated >3 months, 12 (22%) completed the study (16 cycles) and 43 (78%) discontinued (36% for disease progression and 27% adverse events). The most frequent treatment-related grade 3/4 adverse events were neutropenia (53%; 15% febrile) and fatigue/asthenia (16%). Among 33 assessable patients, 14 (42.4%) had confirmed partial response. Median progression-free and overall survivals were 12.6 and 21.7 months, respectively. CONCLUSION This combination was moderately well tolerated, with promising response rate and survival benefit, justifying further investigation in mCRPC.
Collapse
Affiliation(s)
- A J Zurita
- Department of Genitourinary Medical Oncology, University of Texas MD Anderson Cancer Center, Houston.
| | - D J George
- Divisions of Medical Oncology and Urology, Duke University Medical Center, Durham
| | - N D Shore
- Carolina Urologic Research Center, Myrtle Beach
| | - G Liu
- Hematology/Oncology Division, University of Wisconsin Carbone Cancer Center, Madison
| | - G Wilding
- Hematology/Oncology Division, University of Wisconsin Carbone Cancer Center, Madison
| | - T E Hutson
- Genitourinary Oncology Program, Baylor Sammons Cancer Center-Texas Oncology, P.A., Dallas
| | - M Kozloff
- Cancer Research Center, Ingalls Memorial Hospital, Harvey
| | - P Mathew
- Department of Genitourinary Medical Oncology, University of Texas MD Anderson Cancer Center, Houston
| | | | - S L Wang
- Departments of Clinical Statistics
| | - I Chen
- Departments of Clinical Development, Pfizer Oncology, La Jolla, USA
| | - E Chow Maneval
- Departments of Clinical Development, Pfizer Oncology, La Jolla, USA
| | - C J Logothetis
- Department of Genitourinary Medical Oncology, University of Texas MD Anderson Cancer Center, Houston
| |
Collapse
|
35
|
Iqbal S, Zhang S, Driss A, Liu ZR, Kim HRC, Wang Y, Ritenour C, Zhau HE, Kucuk O, Chung LWK, Wu D. PDGF upregulates Mcl-1 through activation of β-catenin and HIF-1α-dependent signaling in human prostate cancer cells. PLoS One 2012; 7:e30764. [PMID: 22276222 PMCID: PMC3262835 DOI: 10.1371/journal.pone.0030764] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2011] [Accepted: 12/20/2011] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Aberrant platelet derived growth factor (PDGF) signaling has been associated with prostate cancer (PCa) progression. However, its role in the regulation of PCa cell growth and survival has not been well characterized. METHODOLOGY/PRINCIPAL FINDINGS Using experimental models that closely mimic clinical pathophysiology of PCa progression, we demonstrated that PDGF is a survival factor in PCa cells through upregulation of myeloid cell leukemia-1 (Mcl-1). PDGF treatment induced rapid nuclear translocation of β-catenin, presumably mediated by c-Abl and p68 signaling. Intriguingly, PDGF promoted formation of a nuclear transcriptional complex consisting of β-catenin and hypoxia-inducible factor (HIF)-1α, and its binding to Mcl-1 promoter. Deletion of a putative hypoxia response element (HRE) within the Mcl-1 promoter attenuated PDGF effects on Mcl-1 expression. Blockade of PDGF receptor (PDGFR) signaling with a pharmacological inhibitor AG-17 abrogated PDGF induction of Mcl-1, and induced apoptosis in metastatic PCa cells. CONCLUSIONS/SIGNIFICANCE Our study elucidated a crucial survival mechanism in PCa cells, indicating that interruption of the PDGF-Mcl-1 survival signal may provide a novel strategy for treating PCa metastasis.
Collapse
Affiliation(s)
- Shareen Iqbal
- Department of Urology and Winship Cancer Institute, Emory University School of Medicine, Atlanta, Georgia, United States of America
| | - Shumin Zhang
- Department of Urology and Winship Cancer Institute, Emory University School of Medicine, Atlanta, Georgia, United States of America
| | - Adel Driss
- Department of Microbiology, Biochemistry and Immunology, Morehouse School of Medicine, Atlanta, Georgia, United States of America
| | - Zhi-Ren Liu
- Department of Biology, Georgia State University, Atlanta, Georgia, United States of America
| | - Hyeong-Reh Choi Kim
- Department of Pathology, Barbara Ann Karmanos Cancer Institute, Wayne State University, School of Medicine, Detroit, Michigan, United States of America
| | - Yanru Wang
- Department of Urology and Winship Cancer Institute, Emory University School of Medicine, Atlanta, Georgia, United States of America
| | - Chad Ritenour
- Department of Urology and Winship Cancer Institute, Emory University School of Medicine, Atlanta, Georgia, United States of America
| | - Haiyen E. Zhau
- Uro-Oncology Research Program, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, California, United States of America
| | - Omer Kucuk
- Department of Hematology and Medical Oncology and Winship Cancer Institute, Emory University School of Medicine, Atlanta, Georgia, United States of America
| | - Leland W. K. Chung
- Uro-Oncology Research Program, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, California, United States of America
- * E-mail: (DW); (LWKC)
| | - Daqing Wu
- Department of Urology and Winship Cancer Institute, Emory University School of Medicine, Atlanta, Georgia, United States of America
- * E-mail: (DW); (LWKC)
| |
Collapse
|
36
|
Gallick GE, Corn PG, Zurita AJ, Lin SH. Small-molecule protein tyrosine kinase inhibitors for the treatment of metastatic prostate cancer. Future Med Chem 2012; 4:107-19. [PMID: 22168167 PMCID: PMC3285098 DOI: 10.4155/fmc.11.161] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
The microenvironment is critical to the growth of prostate cancer (PCa) in the bone. Thus, for clinical efficacy, therapies must target tumor-microenvironment interactions. Several protein tyrosine kinases have been implicated in the development and growth of PCa bone metastasis. In this review, specific protein tyrosine kinases that regulate these complex interactions, including PDGFR, the EGFR family, c-Src, VEGFR, IGF-1R, FGFR and c-Met will be discussed, with an emphasis on why these kinases are promising therapeutic targets for metastatic PCa treatment. For each of these kinases, small-molecule inhibitors have reached clinical trials. Current results of these trials and future prospects for the use of tyrosine kinase inhibitors for the treatment of PCa bone metastases are also discussed.
Collapse
Affiliation(s)
- Gary E Gallick
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA
| | - Paul G Corn
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA
| | - Amado J Zurita
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA
| | - Sue-Hwa Lin
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA
- Department of Molecular Pathology, Unit 89, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA
| |
Collapse
|
37
|
PTEN regulates PDGF ligand switch for β-PDGFR signaling in prostate cancer. THE AMERICAN JOURNAL OF PATHOLOGY 2011; 180:1017-1027. [PMID: 22209699 DOI: 10.1016/j.ajpath.2011.11.021] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2011] [Revised: 10/10/2011] [Accepted: 11/28/2011] [Indexed: 12/29/2022]
Abstract
Platelet-derived growth factor (PDGF) family members are potent growth factors that regulate cell proliferation, migration, and transformation. Clinical studies have shown that both PDGF receptor β (β-PDGFR) and its ligand PDGF D are up-regulated in primary prostate cancers and bone metastases, whereas PDGF B, a classic ligand for β-PDGFR, is not frequently detected in clinical samples. In this study, we examined the role of the tumor suppressor phosphatase and tensin homologue deleted on chromosome 10 (PTEN) in the regulation of PDGF expression levels using both a prostate-specific, conditional PTEN-knockout mouse model and mouse prostate epithelial cell lines established from these mice. We found an increase in PDGF D and β-PDGFR expression levels in PTEN-null tumor cells, accompanied by a decrease in PDGF B expression. Among Akt isoforms, increased Akt3 expression was most prominent in mouse PTEN-null cells, and phosphatidylinositol 3-kinase/Akt activity was essential for the maintenance of increased PDGF D and β-PDGFR expression. In vitro deletion of PTEN resulted in a PDGF ligand switch from PDGF B to PDGF D in normal mouse prostate epithelial cells, further demonstrating that PTEN regulates this ligand switch. Similar associations between PTEN status and PDGF isoforms were noted in human prostate cancer cell lines. Taken together, these results suggest a mechanism by which loss of PTEN may promote prostate cancer progression via PDGF D/β-PDGFR signal transduction.
Collapse
|
38
|
Huang W, Fridman Y, Bonfil RD, Ustach CV, Conley-LaComb MK, Wiesner C, Saliganan A, Cher ML, Kim HRC. A novel function for platelet-derived growth factor D: induction of osteoclastic differentiation for intraosseous tumor growth. Oncogene 2011; 31:4527-35. [PMID: 22158043 PMCID: PMC3482867 DOI: 10.1038/onc.2011.573] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
Although increasing evidence suggests a critical role for platelet-derived growth factor (PDGF) receptor β (β-PDGFR) signaling in prostate cancer (PCa) progression, the precise roles of β-PDGFR and PDGF isoform-specific cell signaling have not been delineated. Recently, we identified the PDGF-D isoform as a ligand for β-PDGFR in PCa and showed that PDGF-D is activated by serine protease-mediated proteolytic removal of the CUB domain in a two-step process, yielding first a hemidimer (HD) and then a growth factor domain dimer. Herein, we demonstrate that the expression of PDGF-D in human PCa LNCaP cells leads to enhanced bone tumor growth and bone responses in immunodeficient mice. Histopathological analyses of bone tumors generated by PDGF-D-expressing LNCaP cells (LNCaP-PDGF-D) revealed osteolytic and osteoblastic responses similar to those observed in human PCa bone metastases. Importantly, we discovered a novel function of PDGF-D in the regulation of osteoclast differentiation, independent of the RANKL/RANK signaling axis. Although both PDGF-B and -D were able to activate β-PDGFR, only PDGF-D was able to induce osteoclastic differentiation in vitro, and upregulate the expression and nuclear translocation of nuclear factor of activated T cells 1, a master transcription factor for osteoclastogenesis. Taken together, these results reveal a new function of PDGF-D as a regulator of osteoclastic differentiation, an activity critical for the establishment of skeletal metastatic deposit in PCa patients.
Collapse
Affiliation(s)
- W Huang
- Department of Pathology, Barbara Ann Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, MI 48201, USA
| | | | | | | | | | | | | | | | | |
Collapse
|
39
|
Phase II trials of imatinib mesylate and docetaxel in patients with metastatic non-small cell lung cancer and head and neck squamous cell carcinoma. J Thorac Oncol 2011; 6:2104-11. [PMID: 21892101 DOI: 10.1097/jto.0b013e31822e7256] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
PURPOSE Two phase II clinical trials in the aerodigestive tumors were undertaken to evaluate the efficacy of imatinib mesylate-docetaxel. We hypothesized that imatinib mesylate would inhibit platelet-derived growth factor receptor (PDGFR) on pericytes and increase docetaxel uptake into tumor cells for an additive antitumor effect. Baseline tumor specimens, serum, and perfusion computed tomography (CT) scans were obtained for supportive evaluation. MATERIALS AND METHODS Eligible patients with metastatic non-small cell lung cancer (NSCLC) treated with 1 prior therapy and chemonaive patients with head and neck squamous cell carcinoma (HNSCC) were enrolled in separate trials, which administered both docetaxel (60 mg/m every 3 weeks) and oral imatinib mesylate (400 mg daily). Both trials used interim analyses for efficacy and safety. RESULTS Twenty-two patients with NSCLC and seven patients with HNSCC were enrolled. Both trials were closed early due to lack of efficacy, significant toxicity, and a potential antagonistic effect. In the NSCLC study, the response rate was 4.5%, median progression-free survival (PFS) 7.9 weeks, and overall survival 35.6 weeks. The HNSCC trial yielded a response rate 0%, PFS 8.8 weeks, and overall survival 34.7 weeks. Baseline NSCLC tumor immunohistochemical biomarker analyses indicated that lower expression of stromal PDGFRβ correlated with a better PFS, whereas stromal PDGFRα and tumor cell PDGFRβ were associated with a worse clinical outcome when treated with imatinib mesylate-docetaxel. CONCLUSION We do not recommend further investigation of this regimen in the aerodigestive tumors. Future investigations in PDGFR tyrosine kinase inhibitors should be used with caution in combination with taxanes and validation of the potential predictive or prognostic biomarkers stromal PDGFRα/β, and tumor cell PDGFRβ are needed.
Collapse
|
40
|
Fu W, Madan E, Yee M, Zhang H. Progress of molecular targeted therapies for prostate cancers. Biochim Biophys Acta Rev Cancer 2011; 1825:140-52. [PMID: 22146293 DOI: 10.1016/j.bbcan.2011.11.003] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2011] [Revised: 11/18/2011] [Accepted: 11/19/2011] [Indexed: 01/16/2023]
Abstract
Prostate cancer remains the most commonly diagnosed malignancy and the second leading cause of cancer-related deaths in men in the United States. The current standard of care consists of prostatectomy and radiation therapy, which may often be supplemented with hormonal therapies. Recurrence is common, and many develop metastatic prostate cancer for which chemotherapy is only moderately effective. It is clear that novel therapies are needed for the treatment of the malignant forms of prostate cancer that recur after initial therapies, such as hormone refractory (HRPC) or castration resistant prostate cancer (CRPC). With advances in understanding of the molecular mechanisms of cancer, we have witnessed unprecedented progress in developing new forms of targeted therapy. Several targeted therapeutic agents have been developed and clinically used for the treatment of solid tumors such as breast cancer, non-small cell lung cancer, and renal cancer. Some of these reagents modulate growth factors and/or their receptors, which are abundant in cancer cells. Other reagents target the downstream signal transduction, survival pathways, and angiogenesis pathways that are abnormally activated in transformed cells or metastatic tumors. We will review current developments in this field, focusing specifically on treatments that can be applied to prostate cancers. Finally we will describe aspects of the future direction of the field with respect to discovering biomarkers to aid in identifying responsive prostate cancer patients.
Collapse
Affiliation(s)
- Weihua Fu
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104-6082, USA
| | | | | | | |
Collapse
|
41
|
Garcia JA, Rini BI. Castration-resistant prostate cancer: many treatments, many options, many challenges ahead. Cancer 2011; 118:2583-93. [PMID: 22038761 DOI: 10.1002/cncr.26582] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2011] [Revised: 08/11/2011] [Accepted: 08/19/2011] [Indexed: 11/08/2022]
Abstract
Although the long natural history of prostate cancer presents challenges in the development of novel therapeutics, major contributions have been observed recently. A better understanding of the long-term complications of androgen deprivation has changed the initial approach to most patients with advanced disease. Specifically, recognition of the limitations of prostate-specific antigen has driven the pursuit of new tools capable of becoming true surrogates for disease outcome. Understanding the molecular biology of castration-resistant prostate cancer (CRPC) has led to a dramatic paradigm shift in the treatment of patients with metastatic disease where the androgen receptor becomes a central therapeutic target. Specific adrenal inhibitors and engineered super androgen receptor inhibitors have become the most promising agents in the disease. Novel immune therapies have been shown to improve survival in selected patients with castration-resistant disease despite the inability to impact traditional markers of response. Similarly, agents such as cabazitaxel and abiraterone acetate have demonstrated clinical benefit are now a standard of care in docetaxel-refractory metastatic CRPC patients. All these changes have occurred in a relatively short period and are likely to change the prostate cancer treatment paradigm. This review summarizes the current management of CRPC and discusses potential future directions.
Collapse
Affiliation(s)
- Jorge A Garcia
- Department of Solid Tumor Oncology, Cleveland Clinic, Cleveland, OH, USA.
| | | |
Collapse
|
42
|
Zamah AM, Mauro MJ, Druker BJ, Oktay K, Egorin MJ, Cedars MI, Rosen MP. Will imatinib compromise reproductive capacity? Oncologist 2011; 16:1422-7. [PMID: 21948652 DOI: 10.1634/theoncologist.2011-0137] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Imatinib mesylate is the first in a family of highly effective, minimally toxic, targeted agents used widely to treat Philadelphia-positive leukemias and selected other cancers, leading to a steady rise in the prevalence of patients using such therapy. Because failure of therapy would require conventional gonadotoxic chemotherapeutics, many female patients using imatinib may choose to preserve fertility. Herein, we provide evidence of a potential negative effect of imatinib on ovarian function by reporting the first case of a woman who showed a severely compromised ovarian response to gonadotropin stimulation while on imatinib, with a normal ovarian response after stopping this medication.
Collapse
Affiliation(s)
- Alberuni M Zamah
- UCSF Medical Center, Center for Reproductive Health, San Francisco, California, USA.
| | | | | | | | | | | | | |
Collapse
|
43
|
Dayyani F, Gallick GE, Logothetis CJ, Corn PG. Novel therapies for metastatic castrate-resistant prostate cancer. J Natl Cancer Inst 2011; 103:1665-75. [PMID: 21917607 DOI: 10.1093/jnci/djr362] [Citation(s) in RCA: 103] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Recent advances in tumor biology have made remarkable achievements in the development of therapy for metastatic castrate-resistant prostate cancer. These advances reflect a growing appreciation for the role of the tumor microenvironment in promoting prostate cancer progression. Prostate cancer is no longer viewed predominantly as a disease of abnormally proliferating epithelial cells but rather as a disease of complex interactions between prostate cancer epithelial cells (epithelial compartment) and the surrounding tissues (stromal compartment) in which they reside. For example, prostate cancers frequently metastasize to bone, an organ that contains a microenvironment rich in extracellular matrix proteins and stromal cells including hematopoietic cells, osteoblasts, osteoclasts fibroblasts, endothelial cells, adipocytes, immune cells, and mesenchymal stem cells. Multiple signaling pathways provide crosstalk between the epithelial and the stromal compartments to enhance tumor growth, including androgen receptor signaling, tyrosine kinase receptor signaling, and immune surveillance. The rationale to disrupt this "two-compartment" crosstalk has led to the development of drugs that target tumor stromal elements in addition to the cancer epithelial cell.
Collapse
Affiliation(s)
- Farshid Dayyani
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, TX 77030, USA
| | | | | | | |
Collapse
|
44
|
Ten years of docetaxel-based therapies in prostate adenocarcinoma: a systematic review and meta-analysis of 2244 patients in 12 randomized clinical trials. Clin Genitourin Cancer 2011; 9:115-23. [PMID: 21907635 DOI: 10.1016/j.clgc.2011.05.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2011] [Revised: 04/26/2011] [Accepted: 05/13/2011] [Indexed: 11/23/2022]
Abstract
BACKGROUND Chemotherapy can reduce serum prostate-specific antigen (PSA) levels and relieve pain in some patients with castration-resistant prostate cancer (CRPC). To improve therapeutic efficacy numerous randomized trials have investigated docetaxel-based combination regimens. The present analysis tries to overcome the statistical limitations of the individual trials and investigates the treatment effects in total and in various combination groups. METHODS The Medline, Embase, Cancerlit, and American Society of Clinical Oncology Abstract databases were searched for published randomized placebo-controlled trials evaluating the use of docetaxel-based regimens in patients with CRPC. The outcomes assessed were overall survival, overall response rate, PSA response rate, and adverse effects. RESULTS Twelve articles (2244 participants) were included in the meta-analysis. The analysis demonstrates a higher PSA response rate from docetaxel-based combinations when compared with docetaxel alone (relative risk [RR] = 1.16; P = .010). The estimated median survival in docetaxel-based combinations was statistically significantly longer than in the docetaxel-alone group (22.0 vs. 18.4 months; P = .037). Grade 3 or 4 neutropenia as well as grade 3 or 4 thromboembolic events were similar in both arms (overall RR, 0.87 [confidence interval (CI) 0.71-1.07]; P = .20 and overall RR 1.52 [0.79 - 2.90]; P = .21, respectively). CONCLUSION The analysis of 12 randomized trials provides evidence in favor of docetaxel-based combination chemotherapy for patients with CRPC and good performance status.
Collapse
|
45
|
Yap TA, Zivi A, Omlin A, de Bono JS. The changing therapeutic landscape of castration-resistant prostate cancer. Nat Rev Clin Oncol 2011; 8:597-610. [PMID: 21826082 DOI: 10.1038/nrclinonc.2011.117] [Citation(s) in RCA: 118] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Castration-resistant prostate cancer (CRPC) has a poor prognosis and remains a significant therapeutic challenge. Before 2010, only docetaxel-based chemotherapy improved survival in patients with CRPC compared with mitoxantrone. Our improved understanding of the underlying biology of CRPC has heralded a new era in molecular anticancer drug development, with a myriad of novel anticancer drugs for CRPC entering the clinic. These include the novel taxane cabazitaxel, the vaccine sipuleucel-T, the CYP17 inhibitor abiraterone, the novel androgen-receptor antagonist MDV-3100 and the radioisotope alpharadin. With these developments, the management of patients with CRPC is changing. In this Review, we discuss these promising therapies along with other novel agents that are demonstrating early signs of activity in CRPC. We propose a treatment pathway for patients with CRPC and consider strategies to optimize the use of these agents, including the incorporation of predictive and intermediate end point biomarkers, such as circulating tumor cells.
Collapse
Affiliation(s)
- Timothy A Yap
- Drug Development Unit, The Royal Marsden NHS Foundation Trust and The Institute of Cancer Research, Downs Road, Sutton, Surrey SM2 5PT, UK
| | | | | | | |
Collapse
|
46
|
Araujo JC, Mathew P, Armstrong AJ, Braud EL, Posadas E, Lonberg M, Gallick GE, Trudel GC, Paliwal P, Agrawal S, Logothetis CJ. Dasatinib combined with docetaxel for castration-resistant prostate cancer: results from a phase 1-2 study. Cancer 2011; 118:63-71. [PMID: 21976132 DOI: 10.1002/cncr.26204] [Citation(s) in RCA: 117] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2011] [Revised: 03/25/2011] [Accepted: 03/28/2011] [Indexed: 12/27/2022]
Abstract
BACKGROUND To determine the potential efficacy of targeting both the tumor and bone microenvironment in patients with castration-resistant prostate cancer (PC), the authors conducted a phase 1-2 trial combining docetaxel with dasatinib, an oral SRC inhibitor. METHODS In phase 1, 16 men received dasatinib 50 to 120 mg once daily and docetaxel 60 to 75 mg/m(2) every 21 days. In phase 2, 30 additional men received dasatinib 100 mg once daily/docetaxel 75 mg/m(2) every 21 days. Efficacy endpoints included changes in prostate-specific antigen (PSA), measurable disease, bone scans, and markers of bone metabolism. Safety and pharmacokinetics were also studied. RESULTS Combination dasatinib and docetaxel therapy was generally well tolerated. Thirteen of 46 patients (28%) had a grade 3-4 toxicity. Drug-drug interactions and a maximum tolerated dose were not identified. Durable 50% PSA declines occurred in 26 of 46 patients (57%). Of 30 patients with measurable disease, 18 (60%) had a partial response. Fourteen patients (30%) had disappearance of a lesion on bone scan. In bone marker assessments, 33 of 38 (87%) and 26 of 34 (76%) had decreases in urinary N-telopeptide or bone-specific alkaline phosphatase levels, respectively. Twenty-eight patients (61%) received single-agent dasatinib after docetaxel discontinuation and had stabilization of disease for an additional 1 to 12 months. CONCLUSIONS The high objective response rate and favorable toxicity profile are promising and justify randomized studies of docetaxel and dasatinib in castration-resistant PC. Parallel declines in levels of PSA and bone markers are consistent with cotargeting of epithelial and bone compartments of the cancer. Treatment with single-agent dasatinib following docetaxel cessation warrants further study. Cancer 2012;. © 2011 American Cancer Society.
Collapse
Affiliation(s)
- John C Araujo
- The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
47
|
Detchokul S, Frauman AG. Recent developments in prostate cancer biomarker research: therapeutic implications. Br J Clin Pharmacol 2011; 71:157-74. [PMID: 21219396 DOI: 10.1111/j.1365-2125.2010.03766.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
This review aims to present an overview of recent clinical trials targeting biomarkers in advanced prostate cancer. We searched ClinicalTrials.gov for early phase clinical trials on treatments of prostate cancer that have been recently completed, are ongoing or are actively recruiting participants. Drug targets and their mechanism of actions were assessed and summarized. Trials were categorized according to prostate cancer biomarkers that have potential as therapeutic targets. A total of 19 new therapeutic agents for the treatment of prostate cancer are included in this review. Trials are summarized according to the targeted biomarkers and are categorized into five therapeutic approaches: prostate cancer vaccine, epigenetic therapy, pro-apoptotic agents, prostate cancer antibodies and anti-angiogenesis approach. Some of the therapeutic agents reviewed showed promising results, warranting further investigation in late phase clinical trials. Recent novel prostate cancer biomarkers that made it through clinical trials and their relevance as drug targets are summarized. This review emphasizes the importance of specific prostate cancer biomarkers and their potentials as targets of the disease. Some clinical trials of targeted treatments in prostate cancer show promising results. Better understanding of disease mechanisms should potentially lead to more specific treatments for individual patients.
Collapse
Affiliation(s)
- Sujitra Detchokul
- Clinical Pharmacology and Therapeutics Unit, Department of Medicine (Austin Health/Northern Health), the University of Melbourne, Heidelberg, Victoria 3084, Australia
| | | |
Collapse
|
48
|
Connolly RM, Rudek MA, Garrett-Mayer E, Jeter SC, Donehower MG, Wright LA, Zhao M, Fetting JH, Emens LA, Stearns V, Davidson NE, Baker SD, Wolff AC. Docetaxel metabolism is not altered by imatinib: findings from an early phase study in metastatic breast cancer. Breast Cancer Res Treat 2011; 127:153-62. [PMID: 21350820 DOI: 10.1007/s10549-011-1413-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2011] [Accepted: 02/13/2011] [Indexed: 11/25/2022]
Abstract
Docetaxel is primarily metabolized by CYP3A4 and susceptible to alterations in clearance by CYP3A4 inhibition and induction. Imatinib is a CYP3A4 inhibitor. A phase I study of docetaxel and imatinib in metastatic breast cancer (MBC) was conducted to test the hypothesis that imatinib decreased docetaxel clearance. Docetaxel was administered weekly × 3 with daily imatinib, repeated every 28 days; during cycle 1, imatinib was started on day 8. Docetaxel and imatinib pharmacokinetics, and hepatic CYP3A4 activity (erythromycin breath test) were evaluated during cycles 1 and 2. Toxicity and efficacy were assessed. Twelve patients were enrolled to three docetaxel/imatinib dose levels: 20 mg/m(2)/600 mg (DL1), 25 mg/m(2)/600 mg (DL2), and 25 mg/m(2)/400 mg (DL2a). Median number of prior chemotherapy regimens was 2 (range, 0-8). Toxicities were primarily observed at DL2; dose-limiting toxicities were Grade 3 transaminase elevations and diarrhea, and 5 patients had grade 2 nausea. Two patients had partial responses (7 months); two stable disease (2 and 4 months); five had progressive disease. Despite a 42% decrease in CYP3A4 activity after 3 weeks of imatinib co-administration, docetaxel clearance was unchanged. Mean ± standard deviation steady-state imatinib trough concentration (2.6 ± 1.2 μg/ml) was approximately 2.6-fold higher than previously observed in other cancer populations, and likely contributed to the poor tolerability of the combination in MBC. In conclusion, imatinib inhibited CYP3A4 but did not affect docetaxel clearance. Clinically, further investigation of this combination in MBC is not warranted due to excessive toxicities. However, these unexpected pharmacokinetic findings support further investigation of mechanisms underlying docetaxel elimination pathways.
Collapse
Affiliation(s)
- Roisin M Connolly
- The Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, 1650 Orleans Street, CRB1-189, Baltimore, MD 21231-1000, USA
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
49
|
Optimal management of bone metastases in prostate cancer. Curr Oncol Rep 2011; 13:222-30. [PMID: 21336561 DOI: 10.1007/s11912-011-0160-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The biological basis of the selective outgrowth of disseminated prostate cancer cells within the hematopoietic bone microenvironment remains a compelling biological mystery. A major proportion of the morbidity and mortality related to prostate cancer can be traced to the burden of bone metastases. The optimal management of bone health in men with prostate cancer requires control of the underlying epithelial neoplasm, attenuation of the subverted bone remodeling process that accompanies disease progression, reduction in the bone complications of disease-directed therapy, and management of co-existing comorbidities that enhance bone fragility. While bone-homing radioisotopes, bisphosphonates, and RANK ligand inhibitors have demonstrated reduction in bone pain and/or other skeletal-related events, further advances into definitive improvements in survival and/or global quality of life are required. A deeper understanding of the biology of bone metastases will likely facilitate a bone-directed therapeutic approach toward a major impact on the survival of men with this important disease.
Collapse
|
50
|
Mathew P, Wen S, Morita S, Thall PF. Placental growth factor and soluble c-kit receptor dynamics characterize the cytokine signature of imatinib in prostate cancer and bone metastases. J Interferon Cytokine Res 2011; 31:539-44. [PMID: 21323568 DOI: 10.1089/jir.2010.0142] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
To assess the hypothesis that the dynamics of plasma angiogenic and inflammatory cytokines after docetaxel chemotherapy with or without the c-kit/abl/platelet-derived growth factor receptor (PDGFR) inhibitor imatinib mesylate for prostate cancer are associated with outcome, the kinetics of 17 plasma cytokines before versus after chemotherapy were assessed and associations with progression-free survival (PFS) examined. After adjusting for multiple tests, significantly different declines in placental growth factor (PIGF), soluble vascular endothelial growth factor receptor-1 (VEGFR1), VEGF, and soluble c-kit were observed with docetaxel plus imatinib (n=41) compared to docetaxel alone (n=47). Based on a piecewise linear regression model for change in concentration of each cytokine as a function of the probability of change in p-PDGFR in vivo, only the dynamics of PIGF (P<0.0001) and soluble c-kit (P<0.0001) differed with imatinib therapy. In a Bayesian log-normal regression model for PFS, a rise in human matrix metalloproteinase 9 after docetaxel alone associated with a longer PFS. Distinct plasma angiogenic cytokines are modified by imatinib and partitioned by in vivo p-PDGFR dynamics after docetaxel chemotherapy for metastatic prostate cancer. Plasma PIGF and soluble c-kit kinetics are candidate biomarkers of imatinib effect. The predictive value of human matrix metalloproteinase 9 kinetics for docetaxel efficacy requires prospective validation.
Collapse
Affiliation(s)
- Paul Mathew
- Department of Genitourinary Medical Oncology, University of Texas M.D. Anderson Cancer Center, Houston, Texas, USA.
| | | | | | | |
Collapse
|