1
|
Scherm A, Ippen FM, Hau P, Baurecht H, Wick W, Gempt J, Knüttel H, Leitzmann MF, Seliger C. Targeted therapies in patients with newly diagnosed glioblastoma-A systematic meta-analysis of randomized clinical trials. Int J Cancer 2023; 152:2373-2382. [PMID: 36647335 DOI: 10.1002/ijc.34433] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 11/28/2022] [Accepted: 12/15/2022] [Indexed: 01/18/2023]
Abstract
Glioblastoma (GB) is the most common malignant primary brain tumor in adults. The standard of care for newly diagnosed GB involves surgical resection followed by radiochemotherapy with temozolomide, with or without tumor-treating fields. In recent years, various efforts have been made to identify suitable molecularly targeted treatment options for malignant brain tumors. This meta-analysis provides an overview of recently published randomized controlled trials (RCTs) with and without molecular stratification, analyzing targeted agents in patients with newly diagnosed GB. The Cochrane Library, MEDLINE (Ovid), ClinicalTrials.gov, WHO's International Clinical Trials Registry Platform, and Google Scholar were searched for RCTs on targeted therapies in patients with newly diagnosed glioblastoma. Hazard ratios (HRs) for overall survival (OS) and progression-free survival (PFS) were extracted and pooled in a random-effects meta-analysis. Twelve RCTs (n = 3941 patients) involving protein kinase inhibitors, proteasome and histone deacetylase inhibitors, anti-angiogenic approaches and poly (ADP-ribose) polymerase (PARP) inhibitors were included in the meta-analysis. None of the targeted agents achieved a significant benefit with regard to OS (HR = 0.98 [95% confidence interval (CI) 0.86-1.11, P = .7731]). By comparison, targeted therapy showed a benefit for PFS (HR = 0.83 [95% CI 0.74-0.94, P = .0037]), especially for patients with an unmethylated O6-methylguanine-DNA-methyltransferase (MGMT) promoter (0.75 [95% CI 0.56-0.99, P = .0440]). Prolongation of PFS was largely driven by VEGF inhibition with bevacizumab (HR = 0.70 [95% CI 0.61-0.80, P = .0000]). VEGF inhibition with bevacizumab prolonged PFS in patients with newly diagnosed glioblastoma compared to standard care. However, no improvement in OS was observed with any of the targeted agents.
Collapse
Affiliation(s)
- Angelika Scherm
- Wilhelm Sander-NeuroOncology Unit and Department of Neurology, Regensburg University Hospital, Regensburg, Germany
| | | | - Peter Hau
- Wilhelm Sander-NeuroOncology Unit and Department of Neurology, Regensburg University Hospital, Regensburg, Germany
| | - Hansjörg Baurecht
- Institute of Epidemiology and Preventive Medicine, Regensburg University Hospital, Regensburg, Germany
| | - Wolfgang Wick
- Department of Neurology, Heidelberg University Hospital, Heidelberg, Germany.,German Cancer Research Center (DKFZ) & German Cancer Center (DKTK), Heidelberg, Germany
| | - Jens Gempt
- Department of Neurosurgery, Klinikum rechts der Isar, School of Medicine, Technical University of Munich, Munich, Germany
| | - Helge Knüttel
- University Library, Regensburg University, Regensburg, Germany
| | - Michael F Leitzmann
- Institute of Epidemiology and Preventive Medicine, Regensburg University Hospital, Regensburg, Germany
| | - Corinna Seliger
- Department of Neurology, Heidelberg University Hospital, Heidelberg, Germany
| |
Collapse
|
2
|
Zaki MM, Mashouf LA, Woodward E, Langat P, Gupta S, Dunn IF, Wen PY, Nahed BV, Bi WL. Genomic landscape of gliosarcoma: distinguishing features and targetable alterations. Sci Rep 2021; 11:18009. [PMID: 34504233 PMCID: PMC8429571 DOI: 10.1038/s41598-021-97454-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 07/19/2021] [Indexed: 12/20/2022] Open
Abstract
Gliosarcoma is an aggressive brain tumor with histologic features of glioblastoma (GBM) and soft tissue sarcoma. Despite its poor prognosis, its rarity has precluded analysis of its underlying biology. We used a multi-center database to characterize the genomic landscape of gliosarcoma. Sequencing data was obtained from 35 gliosarcoma patients from Genomics Evidence Neoplasia Information Exchange (GENIE) 5.0, a database curated by the American Association of Cancer Research (AACR). We analyzed genomic alterations in gliosarcomas and compared them to GBM (n = 1,449) and soft tissue sarcoma (n = 1,042). 30 samples were included (37% female, median age 59 [IQR: 49–64]). Nineteen common genes were identified in gliosarcoma, defined as those altered in > 5% of samples, including TERT Promoter (92%), PTEN (66%), and TP53 (60%). Of the 19 common genes in gliosarcoma, 6 were also common in both GBM and soft tissue sarcoma, 4 in GBM alone, 0 in soft tissue sarcoma alone, and 9 were more distinct to gliosarcoma. Of these, BRAF harbored an OncoKB level 1 designation, indicating its status as a predictive biomarker of response to an FDA-approved drug in certain cancers. EGFR, CDKN2A, NF1, and PTEN harbored level 4 designations in solid tumors, indicating biological evidence of these biomarkers predicting a drug-response. Gliosarcoma contains molecular features that overlap GBM and soft tissue sarcoma, as well as its own distinct genomic signatures. This may play a role in disease classification and inclusion criteria for clinical trials. Gliosarcoma mutations with potential therapeutic indications include BRAF, EGFR, CDKN2A, NF1, and PTEN.
Collapse
Affiliation(s)
- Mark M Zaki
- Center for Skull Base and Pituitary Surgery, Department of Neurosurgery, Brigham and Women's Hospital, 60 Fenwood Road, Boston, MA, 02115, USA.,Department of Neurosurgery, University of Michigan, Ann Arbor, MI, USA
| | - Leila A Mashouf
- Center for Skull Base and Pituitary Surgery, Department of Neurosurgery, Brigham and Women's Hospital, 60 Fenwood Road, Boston, MA, 02115, USA
| | - Eleanor Woodward
- Center for Skull Base and Pituitary Surgery, Department of Neurosurgery, Brigham and Women's Hospital, 60 Fenwood Road, Boston, MA, 02115, USA
| | - Pinky Langat
- Center for Skull Base and Pituitary Surgery, Department of Neurosurgery, Brigham and Women's Hospital, 60 Fenwood Road, Boston, MA, 02115, USA
| | - Saksham Gupta
- Center for Skull Base and Pituitary Surgery, Department of Neurosurgery, Brigham and Women's Hospital, 60 Fenwood Road, Boston, MA, 02115, USA
| | - Ian F Dunn
- Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Patrick Y Wen
- Center for NeuroOncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
| | - Brian V Nahed
- Center for NeuroOncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA.,Department of Neurosurgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Wenya Linda Bi
- Center for Skull Base and Pituitary Surgery, Department of Neurosurgery, Brigham and Women's Hospital, 60 Fenwood Road, Boston, MA, 02115, USA.
| |
Collapse
|
3
|
Cruz Da Silva E, Mercier MC, Etienne-Selloum N, Dontenwill M, Choulier L. A Systematic Review of Glioblastoma-Targeted Therapies in Phases II, III, IV Clinical Trials. Cancers (Basel) 2021; 13:1795. [PMID: 33918704 PMCID: PMC8069979 DOI: 10.3390/cancers13081795] [Citation(s) in RCA: 71] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 03/19/2021] [Accepted: 03/26/2021] [Indexed: 02/07/2023] Open
Abstract
Glioblastoma (GBM), the most frequent and aggressive glial tumor, is currently treated as first line by the Stupp protocol, which combines, after surgery, radiotherapy and chemotherapy. For recurrent GBM, in absence of standard treatment or available clinical trials, various protocols including cytotoxic drugs and/or bevacizumab are currently applied. Despite these heavy treatments, the mean overall survival of patients is under 18 months. Many clinical studies are underway. Based on clinicaltrials.org and conducted up to 1 April 2020, this review lists, not only main, but all targeted therapies in phases II-IV of 257 clinical trials on adults with newly diagnosed or recurrent GBMs for the last twenty years. It does not involve targeted immunotherapies and therapies targeting tumor cell metabolism, that are well documented in other reviews. Without surprise, the most frequently reported drugs are those targeting (i) EGFR (40 clinical trials), and more generally tyrosine kinase receptors (85 clinical trials) and (ii) VEGF/VEGFR (75 clinical trials of which 53 involving bevacizumab). But many other targets and drugs are of interest. They are all listed and thoroughly described, on an one-on-one basis, in four sections related to targeting (i) GBM stem cells and stem cell pathways, (ii) the growth autonomy and migration, (iii) the cell cycle and the escape to cell death, (iv) and angiogenesis.
Collapse
Affiliation(s)
- Elisabete Cruz Da Silva
- CNRS, UMR 7021, Laboratoire de Bioimagerie et Pathologies, Faculté de Pharmacie, Université de Strasbourg, 67401 Illkirch, France; (E.C.D.S.); (M.-C.M.); (N.E.-S.); (M.D.)
| | - Marie-Cécile Mercier
- CNRS, UMR 7021, Laboratoire de Bioimagerie et Pathologies, Faculté de Pharmacie, Université de Strasbourg, 67401 Illkirch, France; (E.C.D.S.); (M.-C.M.); (N.E.-S.); (M.D.)
| | - Nelly Etienne-Selloum
- CNRS, UMR 7021, Laboratoire de Bioimagerie et Pathologies, Faculté de Pharmacie, Université de Strasbourg, 67401 Illkirch, France; (E.C.D.S.); (M.-C.M.); (N.E.-S.); (M.D.)
- Service de Pharmacie, Institut de Cancérologie Strasbourg Europe, 67200 Strasbourg, France
| | - Monique Dontenwill
- CNRS, UMR 7021, Laboratoire de Bioimagerie et Pathologies, Faculté de Pharmacie, Université de Strasbourg, 67401 Illkirch, France; (E.C.D.S.); (M.-C.M.); (N.E.-S.); (M.D.)
| | - Laurence Choulier
- CNRS, UMR 7021, Laboratoire de Bioimagerie et Pathologies, Faculté de Pharmacie, Université de Strasbourg, 67401 Illkirch, France; (E.C.D.S.); (M.-C.M.); (N.E.-S.); (M.D.)
| |
Collapse
|
4
|
Lu H, Bai L, Zhou Y, Lu Y, Jiang Z, Shi J. Recent Study of Dual HDAC/PARP Inhibitor for the Treatment of Tumor. Curr Top Med Chem 2019; 19:1041-1050. [PMID: 31161991 DOI: 10.2174/1568026619666190603092407] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 03/27/2019] [Accepted: 04/08/2019] [Indexed: 12/25/2022]
Abstract
The occurrence and development of tumors are closely related to epigenetic instability which modulates gene expression through DNA methylation, histone modification, chromatin remodeling, and RNA-related silencing. Histone deacetylase (HDAC) and poly (ADP-ribose) polymerase (PARP) are targets of epigenetic regulation. Over the years, a large number of studies have shown that HDAC inhibitors and PARP inhibitors have synergistic effects in the treatment of tumors, and there are reports of related dual HDAC/PARP inhibitors. This review will give a brief summary of the synergistic mechanisms of HDAC inhibitors and PARP inhibitors and introduce the design of the first dual HDAC/PARP inhibitor, which may guide the design of more dual HDAC/PARP inhibitors for the treatment of tumors.
Collapse
Affiliation(s)
- Haiying Lu
- Department of Pharmacy, Personalized Drug Therapy Key Laboratory of Sichuan Province, Sichuan Academy of Medical Science & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Lan Bai
- Department of Pharmacy, Personalized Drug Therapy Key Laboratory of Sichuan Province, Sichuan Academy of Medical Science & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Yanping Zhou
- Department of Pharmacy, Personalized Drug Therapy Key Laboratory of Sichuan Province, Sichuan Academy of Medical Science & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Yongping Lu
- Department of Pharmacy, Personalized Drug Therapy Key Laboratory of Sichuan Province, Sichuan Academy of Medical Science & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Zhongliang Jiang
- Miller School of Medicine, University of Miami, Miami, Florida, United States
| | - Jianyou Shi
- Department of Pharmacy, Personalized Drug Therapy Key Laboratory of Sichuan Province, Sichuan Academy of Medical Science & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| |
Collapse
|
5
|
Sun G, Zhang C, Song H, Guo J, Li M, Cao Y. WZY-321, a novel evodiamine analog, inhibits glioma cell growth in an autophagy-associated manner. Oncol Lett 2018; 17:2465-2472. [PMID: 30675312 DOI: 10.3892/ol.2018.9847] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Accepted: 09/21/2018] [Indexed: 01/08/2023] Open
Abstract
Glioblastoma is one of the most aggressive types of brain tumor. The median survival rate of patients with glioblastoma (World Health Organization grade IV) is <15 months. Therefore, there is an urgent requirement for the development of novel and efficient therapeutic agents against glioma. In previous studies, WZY-321 (10-hydroxy-1-methyl-8,13b-dihydro-5H,7H-benzo[e]benzofuro[2',3':3,4]pyrido[2,1-b][1,3]oxazin-5-one), a novel evodiamine (Evo) analog, was reported to exhibit enhanced pharmacological properties and improved cytotoxicity against a number of human cancer cell lines compared with Evo. In the current study, the anti-proliferative effect of WZY-321 on SHG-44 and SWO-38 glioma cells was further studied, and its mechanism of action investigated. The results indicated that WZY-321 inhibited the proliferation of SHG-44 cells in a dose- and time-dependent manner by enhancing cellular apoptosis and inducing cell cycle arrest at the G2-M phase. Treatment of glioma cells with WZY-321 concomitantly increased the expression levels of microtubule associated protein 1 light chain 3α and Beclin1, indicating enhanced autophagy. Overall, the results of the present study revealed the anti-proliferative potential of WZY-321 in glioma cells, thus providing a possible autophagy-based therapeutic strategy for the treatment of glioblastoma.
Collapse
Affiliation(s)
- Guan Sun
- Department of Neurosurgery, The First People's Hospital of Yancheng, Fourth Affiliated Hospital of Nantong University, Yancheng, Jiangsu 224001, P.R. China
| | - Chuang Zhang
- Department of Medical Oncology, The Eighty-First Hospital of People's Liberation Army, Nanjing, Jiangsu 210002, P.R. China
| | - Hongmao Song
- Department of Ear-Nose-Throat, Huai'an Second People's Hospital, The Affiliated Huai'an Hospital of Xuzhou Medical University, Huai'an, Jiangsu 223002, P.R. China
| | - Jun Guo
- Department of Neurosurgery, The First People's Hospital of Yancheng, Fourth Affiliated Hospital of Nantong University, Yancheng, Jiangsu 224001, P.R. China
| | - Min Li
- Department of Neurosurgery, Jiangning Hospital Affiliated with Nanjing Medical University, Nanjing, Jiangsu 211100, P.R. China
| | - Ying Cao
- Department of Ear-Nose-Throat, Huai'an Second People's Hospital, The Affiliated Huai'an Hospital of Xuzhou Medical University, Huai'an, Jiangsu 223002, P.R. China
| |
Collapse
|
6
|
Blakeley JO, Grossman SA, Chi AS, Mikkelsen T, Rosenfeld MR, Ahluwalia MS, Nabors LB, Eichler A, Ribas IG, Desideri S, Ye X. Phase II Study of Iniparib with Concurrent Chemoradiation in Patients with Newly Diagnosed Glioblastoma. Clin Cancer Res 2018; 25:73-79. [PMID: 30131387 DOI: 10.1158/1078-0432.ccr-18-0110] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Revised: 04/04/2018] [Accepted: 08/16/2018] [Indexed: 12/24/2022]
Abstract
PURPOSE Iniparib is a purported prodrug causing cell death through intracellular conversion to nitro radical ions. We assessed the efficacy and safety of iniparib with standard radiotherapy and temozolomide in patients with newly diagnosed glioblastoma (GBM). PATIENTS AND METHODS Adults meeting eligibility criteria were enrolled in this prospective, single-arm, open-label multi- institution phase II trial with median overall survival (mOS) compared with a historical control as the primary objective. A safety run-in component of radiotherapy + temozolomide + iniparib (n = 5) was followed by an efficacy study (n = 76) with the recommended phase II doses of iniparib (8.0 mg/kg i.v. twice/week with radiotherapy + daily temozolomide followed by 8.6 mg/kg i.v. twice/week with 5/28-day temozolomide). RESULTS The median age of the 81 evaluable participants was 58 years (63% male). Baseline KPS was ≥ 80% in 87% of participants. The mOS was 22 months [95% confidence interval (CI), 17-24] and the HR was 0.44 (95% CI, 0.35-0.55) per-person-year of follow-up. The 2- and 3-year survival rates were 38% and 25%, respectively. Treatment-related grade 3 adverse events (AEs) occurred in 27% of patients; 9 patients had AEs requiring drug discontinuation including infusion-related reaction, rash, gastritis, increased liver enzymes, and thrombocytopenia. CONCLUSIONS Iniparib is well tolerated with radiotherapy and temozolomide in patients with newly diagnosed GBM at up to 17.2 mg/kg weekly. The primary objective of improved mOS compared with a historical control was met, indicating potential antitumor activity of iniparib in this setting. Dosing optimization (frequency and sequence) is needed prior to additional efficacy studies.
Collapse
Affiliation(s)
- Jaishri O Blakeley
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland. .,Department of Oncology and Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Stuart A Grossman
- Department of Oncology and Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Andrew S Chi
- Laura and Isaac Perlmutter Cancer Center, New York University School of Medicine, New York, New York
| | | | - Myrna R Rosenfeld
- Institute for Biomedical Research (IDIBAPS)/Hospital Clinic, Barcelona, Spain
| | | | - L Burt Nabors
- Department of Neurology, University of Alabama at Birmingham, Birmingham, Alabama
| | - April Eichler
- Department of Neurology, Massachusetts General Hospital, Boston, Massachusetts
| | | | - Serena Desideri
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Xiaobu Ye
- Department of Oncology and Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | | |
Collapse
|
7
|
Saba C, Paoloni M, Mazcko C, Kisseberth W, Burton JH, Smith A, Wilson-Robles H, Allstadt S, Vail D, Henry C, Lana S, Ehrhart EJ, Charles B, Kent M, Lawrence J, Burgess K, Borgatti A, Suter S, Woods P, Gordon I, Vrignaud P, Khanna C, LeBlanc AK. A Comparative Oncology Study of Iniparib Defines Its Pharmacokinetic Profile and Biological Activity in a Naturally-Occurring Canine Cancer Model. PLoS One 2016; 11:e0149194. [PMID: 26866698 PMCID: PMC4751284 DOI: 10.1371/journal.pone.0149194] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Accepted: 01/28/2016] [Indexed: 12/25/2022] Open
Abstract
Development of iniparib as an anti-cancer agent was hindered in part by lingering questions regarding its mechanism of action, the activity of its metabolites, and their potential accumulation in tumors. Due to strong similarities in metabolism of iniparib between humans and dogs, a veterinary clinical trial in pet dogs with spontaneous cancers was designed to answer specific questions pertaining to pharmacokinetic exposures and tolerability of iniparib. Dogs were treated with iniparib alone and in combination with carboplatin chemotherapy. Iniparib doses ranged between 10-70 mg/kg intravenously (IV). Plasma, tumor and normal tissue samples were collected before and at various time points scheduled after exposure for pharmacokinetic and biologic analysis. The primary endpoints included characterization of dose-limiting toxicities (DLT) and determination of the drug exposures that could be achieved in both normal and tumor tissues. Nineteen dogs were treated. DLT included fever, anorexia, diarrhea, neutropenia, and thrombocytopenia; most effects were attributable to carboplatin based on the timing of adverse event onset. The maximum tolerated dose (MTD) of iniparib was not identified. Moderate to high variability in plasma exposure was noted for iniparib and all metabolites between animals. When quantifiable, iniparib and metabolite plasma:tumor ratios were < 0.088 and <1.7, respectively. In this study, iniparib was well tolerated as a single agent and in combination with carboplatin over a range of doses. However, clinically relevant concentrations of the parent drug and selected metabolites were not detectable in canine tumor tissues at any studied dose, thus eliminating expectations for clinical responses in dogs or humans. Negative clinical trials in humans, and the uncertainties of its mechanism of action, ultimately led to the decision to stop clinical development of the drug. Nevertheless, the questions that can be asked and answered within the comparative oncology approach are evident from this successfully executed comparative clinical trial and exemplify the value of such studies in drug development.
Collapse
Affiliation(s)
- Corey Saba
- College of Veterinary Medicine, University of Georgia, Athens, Georgia, United States of America
| | - Melissa Paoloni
- Comparative Oncology Program, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, United States of America
| | - Christina Mazcko
- Comparative Oncology Program, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, United States of America
| | - William Kisseberth
- College of Veterinary Medicine, The Ohio State University, Columbus, Ohio, United States of America
| | - Jenna H. Burton
- College of Veterinary Medicine and Biological Sciences, Colorado State University, Fort Collins, Colorado, United States of America
| | - Annette Smith
- College of Veterinary Medicine, Auburn University, Auburn, Alabama, United States of America
| | - Heather Wilson-Robles
- College of Veterinary Medicine, Texas A&M University, College Station, Texas, United States of America
| | - Sara Allstadt
- School of Veterinary Medicine, University of California Davis, Davis, California, United States of America
| | - David Vail
- School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
| | - Carolyn Henry
- College of Veterinary Medicine, University of Missouri-Columbia, Columbia, Missouri, United States of America
| | - Susan Lana
- College of Veterinary Medicine and Biological Sciences, Colorado State University, Fort Collins, Colorado, United States of America
| | - E. J. Ehrhart
- College of Veterinary Medicine and Biological Sciences, Colorado State University, Fort Collins, Colorado, United States of America
| | - Brad Charles
- College of Veterinary Medicine and Biological Sciences, Colorado State University, Fort Collins, Colorado, United States of America
| | - Michael Kent
- School of Veterinary Medicine, University of California Davis, Davis, California, United States of America
| | - Jessica Lawrence
- College of Veterinary Medicine, University of Georgia, Athens, Georgia, United States of America
| | - Kristine Burgess
- School of Veterinary Medicine, Tufts University, North Grafton, Massachusetts, United States of America
| | - Antonella Borgatti
- College of Veterinary Medicine, University of Minnesota, St. Paul, Minnesota, United States of America
| | - Steve Suter
- College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, United States of America
| | - Paul Woods
- Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
| | - Ira Gordon
- Comparative Oncology Program, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, United States of America
| | | | - Chand Khanna
- Comparative Oncology Program, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, United States of America
| | - Amy K. LeBlanc
- Comparative Oncology Program, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, United States of America
- * E-mail:
| |
Collapse
|