1
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Pérez-Santana CG, Jiménez-Alonso AA, Rodríguez-Esparragón F, Cazorla-Rivero S, Rodríguez Grau-Bassas E. Canine Oral Melanoma: Questioning the Existing Information through a Series of Clinical Cases. Vet Sci 2024; 11:226. [PMID: 38787198 PMCID: PMC11125799 DOI: 10.3390/vetsci11050226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Revised: 05/13/2024] [Accepted: 05/15/2024] [Indexed: 05/25/2024] Open
Abstract
Twelve dogs with oral malignant melanomas (MM) were evaluated in this study, with demographic details indicating a balanced distribution of gender, age, and weight among various breeds. Tumor locations varied, with diverse surgical procedures being performed, including mandibulectomies and maxillectomies. Lymphadenectomies were conducted, revealing a 16.66% metastatic rate in regional lymph nodes. At the time of surgery, clinical staging identified stages I, II, and III, with most cases having non-infiltrated margins and a high mitotic index. Follow-up revealed local recurrences and metastases, prompting additional surgeries and affecting survival rates. This study reports varying outcomes, with some dogs completing one year without recurrence, while others experienced progressive disease, leading to six oral melanoma-related deaths. The characteristics of melanotic melanoma and amelanotic melanoma are observed in order to study differences between them, the degree of aggressiveness, the mortality rate and the possibility of future therapeutic targets. Although high pigmentation has been correlated with a better outcome, we could not find any significant correlation between survival and achromia. Oral benign melanomas might exist, and this could justify variabilities between stage and survival; however, carefulness is required due to their unpredictable behavior. The findings underscore the complexity of oral melanoma cases and highlight the need for further research on effective management strategies.
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Affiliation(s)
- Carmen G. Pérez-Santana
- Instituto Universitario de Sanidad Animal y Seguridad Alimentaria (IUSA), Universidad de Las Palmas de Gran Canaria (ULPGC), Arucas, 35400 Las Palmas, Spain; (A.A.J.-A.); (E.R.G.-B.)
- Unidad de Investigación Hospital Universitario de Gran Canaria Dr. Negrín, Las Palmas de Gran Canaria, 35010 Las Palmas, Spain; (F.R.-E.); (S.C.-R.)
- Fundación Canaria Instituto de Investigación Sanitaria de Canarias (FIISC), Hospital Universitario de Gran Canaria Dr. Negrín, Las Palmas de Gran Canaria, 35010 Las Palmas, Spain
| | - Ana A. Jiménez-Alonso
- Instituto Universitario de Sanidad Animal y Seguridad Alimentaria (IUSA), Universidad de Las Palmas de Gran Canaria (ULPGC), Arucas, 35400 Las Palmas, Spain; (A.A.J.-A.); (E.R.G.-B.)
- Unidad de Investigación Hospital Universitario de Gran Canaria Dr. Negrín, Las Palmas de Gran Canaria, 35010 Las Palmas, Spain; (F.R.-E.); (S.C.-R.)
| | - Francisco Rodríguez-Esparragón
- Unidad de Investigación Hospital Universitario de Gran Canaria Dr. Negrín, Las Palmas de Gran Canaria, 35010 Las Palmas, Spain; (F.R.-E.); (S.C.-R.)
- Fundación Canaria Instituto de Investigación Sanitaria de Canarias (FIISC), Hospital Universitario de Gran Canaria Dr. Negrín, Las Palmas de Gran Canaria, 35010 Las Palmas, Spain
| | - Sara Cazorla-Rivero
- Unidad de Investigación Hospital Universitario de Gran Canaria Dr. Negrín, Las Palmas de Gran Canaria, 35010 Las Palmas, Spain; (F.R.-E.); (S.C.-R.)
- Departamento de Medicina Interna, Universidad de La Laguna, Tenerife, 38200 La Laguna, Spain
| | - Enrique Rodríguez Grau-Bassas
- Instituto Universitario de Sanidad Animal y Seguridad Alimentaria (IUSA), Universidad de Las Palmas de Gran Canaria (ULPGC), Arucas, 35400 Las Palmas, Spain; (A.A.J.-A.); (E.R.G.-B.)
- Unidad de Investigación Hospital Universitario de Gran Canaria Dr. Negrín, Las Palmas de Gran Canaria, 35010 Las Palmas, Spain; (F.R.-E.); (S.C.-R.)
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2
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Polton G, Borrego JF, Clemente-Vicario F, Clifford CA, Jagielski D, Kessler M, Kobayashi T, Lanore D, Queiroga FL, Rowe AT, Vajdovich P, Bergman PJ. Melanoma of the dog and cat: consensus and guidelines. Front Vet Sci 2024; 11:1359426. [PMID: 38645640 PMCID: PMC11026649 DOI: 10.3389/fvets.2024.1359426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Accepted: 03/12/2024] [Indexed: 04/23/2024] Open
Abstract
Melanoma of the dog and cat poses a clinical challenge to veterinary practitioners across the globe. As knowledge evolves, so too do clinical practices. However, there remain uncertainties and controversies. There is value for the veterinary community at large in the generation of a contemporary wide-ranging guideline document. The aim of this project was therefore to assimilate the available published knowledge into a single accessible referenced resource and to provide expert clinical guidance to support professional colleagues as they navigate current melanoma challenges and controversies. Melanocytic tumors are common in dogs but rare in cats. The history and clinical signs relate to the anatomic site of the melanoma. Oral and subungual malignant melanomas are the most common malignant types in dogs. While many melanocytic tumors are heavily pigmented, making diagnosis relatively straightforward, melanin pigmentation is variable. A validated clinical stage scheme has been defined for canine oral melanoma. For all other locations and for feline melanoma, TNM-based staging applies. Certain histological characteristics have been shown to bear prognostic significance and can thus prove instructive in clinical decision making. Surgical resection using wide margins is currently the mainstay of therapy for the local control of melanomas, regardless of primary location. Radiotherapy forms an integral part of the management of canine oral melanomas, both as a primary and an adjuvant therapy. Adjuvant immunotherapy or chemotherapy is offered to patients at high risk of developing distant metastasis. Location is the major prognostic factor, although it is not completely predictive of local invasiveness and metastatic potential. There are no specific guidelines regarding referral considerations for dogs with melanoma, as this is likely based on a multitude of factors. The ultimate goal is to provide the best options for patients to extend quality of life and survival, either within the primary care or referral hospital setting.
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Affiliation(s)
- Gerry Polton
- North Downs Specialist Referrals, Bletchingley, United Kingdom
| | - Juan F. Borrego
- Hospital Aúna Especialidades Veterinarias IVC Evidensia, Paterna, Spain
| | | | | | - Dariusz Jagielski
- Veterinary Institute, Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus University, Toruń, Poland
| | - Martin Kessler
- Department of Clinical Oncology, Tierklinik Hofheim, Hofheim, Germany
| | | | | | | | | | - Péter Vajdovich
- Department of Physiology and Oncology, University of Veterinary Medicine, Budapest, Hungary
| | - Philip J. Bergman
- VCA Clinical Studies, Katonah-Bedford Veterinary Center, Bedford Hills, NY, United States
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3
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Briggs A, Bell C, Greenfield B. Feline Oral Melanoma-A Retrospective Study in 20 Cats and Case Report. J Vet Dent 2023; 40:347-357. [PMID: 37710985 DOI: 10.1177/08987564231198791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/16/2023]
Abstract
This retrospective study reported the clinical presentation, histopathologic findings, treatment, results of clinical staging, necropsy findings, and survival times for 20 cats with oral melanoma. The median survival time was 102 days, with a one-year survival rate of 15% (n = 3). Metastatic disease was documented in 5 cases. Cats with metastatic disease, tumors within the oral cavity (in contrast to labial tumors), and those treated only palliatively after diagnosis had shorter survival times. One case was monitored from the time of presentation until euthanasia.
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Affiliation(s)
| | - Cindy Bell
- Specialty Oral Pathology for Animals, LLC, Geneseo, IL, USA
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4
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Deguchi T, Maekawa N, Konnai S, Owaki R, Hosoya K, Morishita K, Nakamura M, Okagawa T, Takeuchi H, Kim S, Kinoshita R, Tachibana Y, Yokokawa M, Takagi S, Kato Y, Suzuki Y, Murata S, Ohashi K. Enhanced Systemic Antitumour Immunity by Hypofractionated Radiotherapy and Anti-PD-L1 Therapy in Dogs with Pulmonary Metastatic Oral Malignant Melanoma. Cancers (Basel) 2023; 15:cancers15113013. [PMID: 37296981 DOI: 10.3390/cancers15113013] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 05/09/2023] [Accepted: 05/24/2023] [Indexed: 06/12/2023] Open
Abstract
Although immune checkpoint inhibitors (ICIs), such as the anti-programmed death-ligand 1 (PD-L1) antibody, have been developed for the treatment of canine malignant melanoma, desirable clinical efficacies have not been achieved. Recent studies in humans have suggested that radiation therapy (RT) combined with ICIs induces robust systemic antitumour immunity in patients with cancer. This study retrospectively examined the therapeutic efficacy of combination therapy (hypofractionated RT and anti-PD-L1 antibody [c4G12]) in dogs with pulmonary metastatic oral malignant melanoma. The intrathoracic clinical benefit rate (CBR)/median overall survival (OS) in the no RT (n = 20, free from the effect of RT), previous RT (n = 9, received RT ≤8 weeks prior to the first c4G12 dose), and concurrent RT (n = 10, c4G12 therapy within ±1 week of the first RT fraction) groups were 10%/185 days, 55.6%/283.5 days (p < 0.05 vs. no RT group), and 20%/129 days (p > 0.05 vs. no RT group), respectively. The adverse events were considered to be tolerable in the combination therapy. Thus, hypofractionated RT before the initiation of c4G12 therapy can be an effective approach for enhancing the therapeutic efficacy of immunotherapy, with acceptable safety profiles. Further prospective clinical studies are required to confirm the findings of this study.
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Affiliation(s)
- Tatsuya Deguchi
- Veterinary Teaching Hospital, Faculty of Veterinary Medicine, Hokkaido University, Sapporo 060-0819, Japan
| | - Naoya Maekawa
- Department of Advanced Pharmaceutics, Faculty of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan
| | - Satoru Konnai
- Department of Advanced Pharmaceutics, Faculty of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan
- Department of Disease Control, Faculty of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan
| | - Ryo Owaki
- Veterinary Teaching Hospital, Faculty of Veterinary Medicine, Hokkaido University, Sapporo 060-0819, Japan
| | - Kenji Hosoya
- Veterinary Teaching Hospital, Faculty of Veterinary Medicine, Hokkaido University, Sapporo 060-0819, Japan
| | - Keitaro Morishita
- Veterinary Teaching Hospital, Faculty of Veterinary Medicine, Hokkaido University, Sapporo 060-0819, Japan
| | - Motoji Nakamura
- Veterinary Teaching Hospital, Faculty of Veterinary Medicine, Hokkaido University, Sapporo 060-0819, Japan
| | - Tomohiro Okagawa
- Department of Advanced Pharmaceutics, Faculty of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan
| | - Hiroto Takeuchi
- Department of Disease Control, Faculty of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan
| | - Sangho Kim
- Veterinary Teaching Hospital, Faculty of Veterinary Medicine, Hokkaido University, Sapporo 060-0819, Japan
| | - Ryohei Kinoshita
- Veterinary Teaching Hospital, Faculty of Veterinary Medicine, Hokkaido University, Sapporo 060-0819, Japan
| | - Yurika Tachibana
- Veterinary Teaching Hospital, Faculty of Veterinary Medicine, Hokkaido University, Sapporo 060-0819, Japan
| | - Madoka Yokokawa
- Veterinary Teaching Hospital, Faculty of Veterinary Medicine, Hokkaido University, Sapporo 060-0819, Japan
| | - Satoshi Takagi
- Department of Veterinary Surgery 1, School of Veterinary Medicine, Azabu University, Sagamihara 252-5201, Japan
| | - Yukinari Kato
- Department of Antibody Drug Development, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan
- Department of Molecular Pharmacology, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan
| | - Yasuhiko Suzuki
- International Institute for Zoonosis Control, Hokkaido University, Sapporo 001-0020, Japan
- Global Station for Zoonosis Control, Global Institution for Collaborative Research and Education (GI-CoRE), Hokkaido University, Sapporo 060-0808, Japan
| | - Shiro Murata
- Department of Advanced Pharmaceutics, Faculty of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan
- Department of Disease Control, Faculty of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan
| | - Kazuhiko Ohashi
- Department of Advanced Pharmaceutics, Faculty of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan
- Department of Disease Control, Faculty of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan
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5
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Rezakhani L, Fekri K, Rostaminasab G, Rahmati S. Exosomes: special nano-therapeutic carrier for cancers, overview on anticancer drugs. MEDICAL ONCOLOGY (NORTHWOOD, LONDON, ENGLAND) 2022; 40:31. [PMID: 36460860 DOI: 10.1007/s12032-022-01887-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 11/07/2022] [Indexed: 12/04/2022]
Abstract
Chemotherapy drugs are the first line of cancer treatment, but problems such as low intratumoral delivery, poor bioavailability, and off-site toxicity must be addressed. Cancer-specific drug delivery techniques could improve the therapeutic outcome in terms of patient survival. The current study investigated the loading of chemotherapy drugs loaded into exosomes for cancer treatment. Exosomes are the smallest extracellular vesicles found in body fluids and can be used to transfer information by moving biomolecules from cell to cell. This makes them useful as carriers. As the membranes of these nanoparticles are similar to cell membranes, they can be easily transported to carry different components. As most chemotherapy drugs are not easily soluble in liquid, loading them into exosomes can be a suitable solution to this problem. This cancer treatment could avert the injection of high doses of drugs and provide a more appropriate release mechanism.
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Affiliation(s)
- Leila Rezakhani
- Fertility and Infertility Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran.,Department of Tissue Engineering, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Kiavash Fekri
- Cancer Research Center, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Gelavizh Rostaminasab
- Clinical Research Development Center, Imam Khomeini and Mohammad Kermanshahi and Farabi Hospitals, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Shima Rahmati
- Cancer Research Center, Shahrekord University of Medical Sciences, Shahrekord, Iran.
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6
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Pellin MA. The Use of Oncept Melanoma Vaccine in Veterinary Patients: A Review of the Literature. Vet Sci 2022; 9:597. [PMID: 36356074 PMCID: PMC9693055 DOI: 10.3390/vetsci9110597] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 10/25/2022] [Accepted: 10/26/2022] [Indexed: 04/28/2024] Open
Abstract
The Oncept melanoma vaccine is xenogeneic DNA vaccine targeting tyrosinase. It is USDA approved for treatment of stage II to III canine oral melanoma and is also used off-label for melanomas arising in other locations and in other species. While the vaccine appears safe, the published data is mixed as to whether it provides a survival benefit, and the use of the vaccine is somewhat controversial in the veterinary oncology community. In this paper, the published literature describing the use of Oncept is reviewed and evaluated.
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Affiliation(s)
- MacKenzie A Pellin
- School of Veterinary Medicine, University of Wisconsin-Madison, 2015 Linden Drive, Madison, WI 53706, USA
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7
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Lin CT, Lin CF, Wu JT, Tsai HP, Cheng SY, Liao HJ, Lin TC, Wu CH, Lin YC, Wang JH, Chang GR. Effects of Para-Toluenesulfonamide on Canine Melanoma Xenotransplants in a BALB/c Nude Mouse Model. Animals (Basel) 2022; 12:ani12172272. [PMID: 36077992 PMCID: PMC9454485 DOI: 10.3390/ani12172272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 08/05/2022] [Accepted: 08/09/2022] [Indexed: 11/17/2022] Open
Abstract
Simple Summary Canine melanomas are malignant neoplasms, and primary melanomas arise at the footpad, nail bed, gastrointestinal tract, mucocutaneous junction, and eyes. Para-toluenesulfonamide (PTS) is a small molecule that acts against several cancers (hepatocellular carcinoma, nonsmall-cell lung cancer, and tongue squamous cell carcinoma). The pharmacological pathway of PTS has the potential to exert anti-inflammatory and antithrombotic functions. We established canine melanoma xenografts in mice and randomized the animals into four treatment groups: saline, cisplatin, PTS, and PTS combined with cisplatin. The findings indicated that compared with the control mice, mice treated with PTS and the combination of PTS and cisplatin showed retarded tumor growth; increased tumor apoptosis through the upregulation of caspase 3 and extracellular signal-regulated kinase phosphorylation; decreased inflammation levels of cytokines, such as interleukin-1β, tumor necrosis factor-α, and interleukin-6; reduced inflammation-related factors, such as the cyclooxygenase-2 protein and nuclear factor-κB mRNA; enhanced anti-inflammation-related factors; and inhibition of the metastasis-related factors transforming growth factor β, CD44, epidermal growth factor receptor, and vascular endothelial growth factor. Combining cisplatin with PTS has a stronger effect than PTS alone. These findings may prove useful in further explorations of the application of PTS or PTS combined with cisplatin to the treatment of canine melanoma in general. Abstract The pharmacological pathway of para-toluenesulfonamide (PTS) restricts the kinase activity of the mammalian target of rapamycin, potentially leading to reductions in cell division, cell growth, cell proliferation, and inflammation. These pathways have a critical effect on tumorigenesis. We aimed to examine the antitumor effect of PTS or PTS combined with cisplatin on canine melanoma implanted in BALB/c nude mice by estimating tumor growth, apoptosis expression, inflammation, and metastasis. The mice were randomly divided into four groups: control, cisplatin, PTS, and PTS combined with cisplatin. Mice treated with PTS or PTS combined with cisplatin had retarded tumor growth and increased tumor apoptosis through the enhanced expression of cleaved caspase 3 and extracellular signal-regulated kinase phosphorylation, decreased inflammatory cytokine levels, reduced inflammation-related factors, enhanced anti-inflammation-related factors, and inhibition of metastasis-related factors. Mice treated with PTS combined with cisplatin exhibited significantly retarded tumor growth, reduced tumor size, and increased tumor inhibition compared with those treated with cisplatin or PTS alone. PTS or PTS combined with cisplatin could retard canine melanoma growth and inhibit tumorigenesis. PTS and cisplatin were found to have an obvious synergistic tumor-inhibiting effect on canine melanoma. PTS alone and PTS combined with cisplatin may be antitumor agents for canine melanoma treatment.
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Affiliation(s)
- Chien-Teng Lin
- Ph.D. Program of Agriculture Science, National Chiayi University, 300 University Road, Chiayi 60004, Taiwan
- Department of Veterinary Medicine, National Chiayi University, 580 Xinmin Road, Chiayi 60054, Taiwan
| | - Chuen-Fu Lin
- Department of Veterinary Medicine, College of Veterinary Medicine, National Pingtung University of Science and Technology, 1 Shuefu Road, Neipu, Pingtung 912301, Taiwan
| | - Jui-Te Wu
- Department of Veterinary Medicine, National Chiayi University, 580 Xinmin Road, Chiayi 60054, Taiwan
| | - Hsiao-Pei Tsai
- Ph.D. Program of Agriculture Science, National Chiayi University, 300 University Road, Chiayi 60004, Taiwan
- Department of Veterinary Medicine, National Chiayi University, 580 Xinmin Road, Chiayi 60054, Taiwan
| | - Shu-Ying Cheng
- Department of Veterinary Medicine, National Chiayi University, 580 Xinmin Road, Chiayi 60054, Taiwan
- Department of Pet Medicine, Gongwin Biopharma Co., Ltd., 1 Section, 80 Jianguo North Road, Zhongshan District, Taipei 104001, Taiwan
| | - Huei-Jyuan Liao
- Department of Veterinary Medicine, National Chiayi University, 580 Xinmin Road, Chiayi 60054, Taiwan
| | - Tzu-Chun Lin
- Department of Veterinary Medicine, National Chiayi University, 580 Xinmin Road, Chiayi 60054, Taiwan
| | - Chao-Hsuan Wu
- Department of Veterinary Medicine, National Chiayi University, 580 Xinmin Road, Chiayi 60054, Taiwan
- Department of Pet Medicine, Gongwin Biopharma Co., Ltd., 1 Section, 80 Jianguo North Road, Zhongshan District, Taipei 104001, Taiwan
| | - Yu-Chin Lin
- Department of Veterinary Medicine, National Chiayi University, 580 Xinmin Road, Chiayi 60054, Taiwan
- Department of Pet Medicine, Gongwin Biopharma Co., Ltd., 1 Section, 80 Jianguo North Road, Zhongshan District, Taipei 104001, Taiwan
| | - Jiann-Hsiung Wang
- Department of Veterinary Medicine, National Chiayi University, 580 Xinmin Road, Chiayi 60054, Taiwan
- Correspondence: (J.-H.W.); (G.-R.C.); Tel.: +886-5-2732959 (J.-H.W.); +886-5-2732946 (G.-R.C.)
| | - Geng-Ruei Chang
- Department of Veterinary Medicine, National Chiayi University, 580 Xinmin Road, Chiayi 60054, Taiwan
- Correspondence: (J.-H.W.); (G.-R.C.); Tel.: +886-5-2732959 (J.-H.W.); +886-5-2732946 (G.-R.C.)
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8
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Pazzi P, Steenkamp G, Rixon AJ. Treatment of Canine Oral Melanomas: A Critical Review of the Literature. Vet Sci 2022; 9:vetsci9050196. [PMID: 35622724 PMCID: PMC9147014 DOI: 10.3390/vetsci9050196] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 04/13/2022] [Accepted: 04/14/2022] [Indexed: 01/09/2023] Open
Abstract
Critical appraisal of the available literature for the treatment of canine oral malignant melanoma (OMM) is lacking. This critical review aimed to evaluate the current literature and provide treatment recommendations and possible suggestions for future canine OMM research. PubMed, Web of Science and Google Scholar were searched in June 2021, for terms relevant to treatment of OMM. Inclusion and exclusion criteria were applied and information on clinical response and outcome extracted. Eighty-one studies were included. The overall level of evidence supporting the various canine OMM treatment options was low. The majority of studies included confounding treatment modalities and lacked randomization, control groups and consistency in reporting clinical response and outcomes. Within these limitations, surgery remains the mainstay of therapy. Adjunctive radiotherapy provided good local control and improved median survival times (MST), chemotherapy did not offer survival benefit beyond that of surgery, while electrochemotherapy may offer a potential alternative to radiotherapy. Immunotherapy holds the most promise in extending MST in the surgical adjunctive setting, in particular the combination of gene therapy and autologous vaccination. Prospective, randomized, double-blinded clinical trials, with a lack of confounding factors and reporting based on established guidelines would allow comparison and recommendations for the treatment of canine OMM.
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9
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Baja AJ, Kelsey KL, Ruslander DM, Gieger TL, Nolan MW. Canine oral melanoma: a retrospective study of 101 dogs treated with a 6 Gy x 6 radiotherapy protocol. Vet Comp Oncol 2022; 20:623-631. [PMID: 35338766 PMCID: PMC9539951 DOI: 10.1111/vco.12815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 03/22/2022] [Accepted: 03/23/2022] [Indexed: 11/29/2022]
Abstract
One radiotherapy (RT) protocol used for canine oral melanoma (OM) gives 36 Gy total, in six weekly or biweekly fractions (6 Gy × 6). This retrospective study characterizes oncologic outcomes for a relatively large group of dogs treated with this protocol and determines whether radiation dose intensity (weekly vs. biweekly) affected either progression‐free or overall survival (PFS and OS). Dogs were included if 6 Gy × 6 was used to treat grossly evident OM, or if RT was used postoperatively in the subclinical disease setting. Kaplan–Meier statistics and Cox regression modelling were used to determine the predictive or prognostic value of mitotic count, bony lysis, World Health Organization (WHO) stage (I, II, III, or IV), using systemic anti‐cancer therapies, tumour burden at the time of RT (macroscopic vs. subclinical), radiation dose intensity (weekly vs. biweekly), and treatment planning type (manual vs. computerized). The median PFS and OS times for all dogs (n = 101) were 171 and 232 days, respectively. On univariate analysis PFS and OS were significantly longer (p = <.05) with subclinical tumour burden, WHO stages I or II, and weekly irradiation. On multivariable analysis, only tumour stage remained significant; therefore, cases were grouped by WHO stage (I/II vs. III/IV). With low WHO stage (I/II), PFS and OS were longer when irradiating subclinical disease (PFS: risk ratio = 0.449, p = .032; OS: risk ratio = 0.422, p = .022); this was not true for high WHO stage (III/IV). When accounting for other factors, radiation dose intensity had no measurable impact on survival in either staging group.
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Affiliation(s)
- Alexie J Baja
- Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, USA
| | | | | | - Tracy L Gieger
- Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, USA.,Comparative Medicine Institute, North Carolina State University, Raleigh, NC, USA
| | - Michael W Nolan
- Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, USA.,Comparative Medicine Institute, North Carolina State University, Raleigh, NC, USA.,Comparative Pain Research and Education Center, North Carolina State University, Raleigh, NC, USA
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10
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Camerino M, Giacobino D, Manassero L, Iussich S, Riccardo F, Cavallo F, Tarone L, Olimpo M, Lardone E, Martano M, Del Magno S, Buracco P, Morello E. Prognostic impact of bone invasion in canine oral malignant melanoma treated by surgery and anti-CSPG4 vaccination: A retrospective study on 68 cases (2010-2020). Vet Comp Oncol 2022; 20:189-197. [PMID: 34392602 PMCID: PMC9290081 DOI: 10.1111/vco.12761] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 05/17/2021] [Accepted: 08/12/2021] [Indexed: 12/15/2022]
Abstract
Prognosis of canine oral malignant melanoma encompasses clinical, histological and immunohistochemical parameters. The aim of this study was to evaluate the prognostic impact of bone invasion in oral canine melanoma. Sixty-eight dogs bearing oral melanoma staged II and III that underwent surgery and anti-CSPG4 electrovaccination, with available histological data and a minimum follow up of minimum 1 year, were retrospectively selected. Bone invasion was detected on imaging and/or histology. Median survival time of dogs with evidence of bone invasion (group 1) was 397 days and significantly shorter compared with dogs with oral melanomas not invading the bone (group 2, 1063 days). Dogs with tumours localised at the level of the cheek, lip, tongue and soft palate (soft tissue - group 3) lived significantly longer compared with dogs having tumours within the gingiva of the maxilla or mandible (hard tissue - group 4) with a median survival time of 1063 and 470 days, respectively. Within group 4, the subgroup of dogs with tumours not invading the bone (group 5) showed a significant prolonged survival time (972 days) in comparison with dogs of group 1 (bone invasion group). Similar results were obtained for the disease-free intervals amongst the different groups. Statistical analysis showed that Ki67 and mitotic count were correlated with shorter survival in patients of group 1 (with bone invasion). Bone invasion should always be assessed since it appears to be a negative prognostic factor.
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Affiliation(s)
| | - Davide Giacobino
- Department of Veterinary SciencesUniversity of TorinoTorinoItaly
| | - Luca Manassero
- Department of Veterinary SciencesUniversity of TorinoTorinoItaly
| | - Selina Iussich
- Department of Veterinary SciencesUniversity of TorinoTorinoItaly
| | - Federica Riccardo
- Department of Molecular Biotechnology and Health SciencesMolecular Biotechnology Center, University of TorinoTorinoItaly
| | - Federica Cavallo
- Department of Molecular Biotechnology and Health SciencesMolecular Biotechnology Center, University of TorinoTorinoItaly
| | - Lidia Tarone
- Department of Molecular Biotechnology and Health SciencesMolecular Biotechnology Center, University of TorinoTorinoItaly
| | - Matteo Olimpo
- Department of Veterinary SciencesUniversity of TorinoTorinoItaly
| | - Elena Lardone
- Department of Veterinary SciencesUniversity of TorinoTorinoItaly
| | - Marina Martano
- Department of Medical Veterinary ScienceUniversity of ParmaParmaItaly
| | - Sara Del Magno
- Department of Veterinary Medical SciencesUniversity of BolognaOzzano dell'EmiliaItaly
| | - Paolo Buracco
- Department of Veterinary SciencesUniversity of TorinoTorinoItaly
| | - Emanuela Morello
- Department of Veterinary SciencesUniversity of TorinoTorinoItaly
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11
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Bernard S, Poon AC, Tam PM, Mutsaers AJ. Investigation of the effects of mTOR inhibitors rapamycin and everolimus in combination with carboplatin on canine malignant melanoma cells. BMC Vet Res 2021; 17:382. [PMID: 34895222 PMCID: PMC8665592 DOI: 10.1186/s12917-021-03089-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 11/23/2021] [Indexed: 01/22/2023] Open
Abstract
Background Malignant melanoma in dogs is considered to be largely resistant to conventional chemotherapy, although responses to carboplatin have been documented. Invasion and early metastasis are common features of certain melanoma subtypes that contribute to tumour progression despite aggressive local and systemic therapy. Upregulation of the PI3K/AKT/mTOR pathway has been observed in canine malignant melanoma and may represent a potential target for therapy. Rapamycin (sirolimus) and everolimus are commercially available small molecule inhibitors that target mTOR and therefore may have anticancer activity in canine melanoma. It was hypothesized that there is synergism between rapamycin or everolimus and platinum chemotherapy, and that combination drug treatment would inhibit target/downstream proteins involved in cell viability/proliferation and increase cell death in canine melanoma cells. It was further hypothesized that rapamycin or everolimus would impact metabolism by reducing glycolysis in these cells. Four canine melanoma cell lines were treated in vitro with rapamycin and everolimus as sole treatment or combined with carboplatin. Cell viability, apoptosis, target modulation, and glycolytic metabolism were evaluated by crystal violet colourimetric assay, Annexin V/PI flow cytometry, western blotting, and Seahorse bioanalyzer, respectively. Results When combined with carboplatin chemotherapy, rapamycin or everolimus treatment was overall synergistic in reducing cell viability. Carboplatin-induced apoptosis was noted at 72 h after treatment compared to the vehicle control. Levels of phosphorylated mTOR were reduced by rapamycin and everolimus in all four cell lines, but activation of the downstream protein p70S6K was not consistently reduced by treatment in two of the cell lines. Both mTOR inhibitors decreased the extracellular acidification rate of canine melanoma cells, indicating reduced cancer cell glycolytic activity. Conclusions Inhibition of mTOR by rapalogs, such as rapamycin and everolimus combined with carboplatin chemotherapy may have activity in canine melanoma. Future mechanistic investigation is warranted, including in vivo assessment of this combination therapy. Supplementary Information The online version contains supplementary material available at 10.1186/s12917-021-03089-0.
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Affiliation(s)
- Sarah Bernard
- Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
| | - Andrew C Poon
- Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
| | - Peyton M Tam
- Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
| | - Anthony J Mutsaers
- Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada. .,Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada.
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12
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Giacobino D, Camerino M, Riccardo F, Cavallo F, Tarone L, Martano M, Dentini A, Iussich S, Lardone E, Franci P, Valazza A, Manassero L, Del Magno S, De Maria R, Morello E, Buracco P. Difference in outcome between curative intent vs marginal excision as a first treatment in dogs with oral malignant melanoma and the impact of adjuvant CSPG4-DNA electrovaccination: A retrospective study on 155 cases. Vet Comp Oncol 2021; 19:651-660. [PMID: 33751759 PMCID: PMC9290641 DOI: 10.1111/vco.12690] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 02/26/2021] [Accepted: 03/05/2021] [Indexed: 12/28/2022]
Abstract
Canine oral malignant melanoma is locally invasive and highly metastatic. At present, the best option for local control is en bloc excision followed by radiation if excision margins are incomplete. Adjuvantly, the role of chemotherapy is dubious while immunotherapy appears encouraging. This retrospective study evaluated 155 dogs with oral malignant melanomas (24 stage I, 54 stage II, 66 stage III and 11 stage IV) managed in a single institution. The aim was to evaluate the differences in median survival time (MST) and disease-free interval (DFI) between dogs which, at presentation, were treated surgically with a curative intent (group 1) vs those marginally excised only (group 2). MST in group 1 was longer than in group 2 (594 vs 458 days), but no significant difference was found (P = .57); a statistical difference was, however, found for DFI (232 vs 183 days, P = .008). In the subpopulation of vaccinated dogs, the impact of adjuvant anti-CSPG4 DNA electrovaccination was then evaluated (curative intent, group 3, vs marginal, group 4); a significant difference for both MST (1333 vs 470 days, respectively, P = .03) and DFI (324 vs 184 days, respectively, P = .008) was found. Progressive disease was significantly more common in dogs undergoing marginal excision than curative intent excision for both the overall population (P = .03) and the vaccinated dogs (P = .02). This study pointed out that, after staging, wide excision together with adjuvant immunotherapy was an effective approach for canine oral malignant melanoma.
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Affiliation(s)
- Davide Giacobino
- Department of Veterinary SciencesUniversity of TorinoTorinoItaly
| | | | - Federica Riccardo
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology CenterUniversity of TorinoTorinoItaly
| | - Federica Cavallo
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology CenterUniversity of TorinoTorinoItaly
| | - Lidia Tarone
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology CenterUniversity of TorinoTorinoItaly
| | - Marina Martano
- Department of Medical Veterinary ScienceUniversity of ParmaItaly
| | | | - Selina Iussich
- Department of Veterinary SciencesUniversity of TorinoTorinoItaly
| | - Elena Lardone
- Department of Veterinary SciencesUniversity of TorinoTorinoItaly
| | - Paolo Franci
- Department of Veterinary SciencesUniversity of TorinoTorinoItaly
| | - Alberto Valazza
- Department of Veterinary SciencesUniversity of TorinoTorinoItaly
| | - Luca Manassero
- Department of Veterinary SciencesUniversity of TorinoTorinoItaly
| | - Sara Del Magno
- Department of Veterinary Medical ScienceUniversity of BolognaItaly
| | | | - Emanuela Morello
- Department of Veterinary SciencesUniversity of TorinoTorinoItaly
| | - Paolo Buracco
- Department of Veterinary SciencesUniversity of TorinoTorinoItaly
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13
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Kim WS, Vinayak A, Powers B. Comparative Review of Malignant Melanoma and Histologically Well-Differentiated Melanocytic Neoplasm in the Oral Cavity of Dogs. Vet Sci 2021; 8:vetsci8110261. [PMID: 34822634 PMCID: PMC8624997 DOI: 10.3390/vetsci8110261] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 10/17/2021] [Accepted: 10/27/2021] [Indexed: 01/19/2023] Open
Abstract
Oral malignant melanoma (OMM) is the most common neoplasm of the canine oral cavity. It is characterized by its aggressive local disease as well as its high rate of lymphatic invasion and distant metastasis. OMM carries a poor prognosis, with most patients succumbing to the disease due to progression of the neoplasm. Histopathologically, OMM is characterized by significant nuclear atypia, a mitotic index of greater than 4/10 hpf, and evidence of vascular invasion or metastasis. Clinically, these lesions can become locally invasive, causing lysis of bones and severe inflammation of the surrounding soft tissue. With time, these lesions can spread to the regional lymph node and to the lungs and other organs. Prognosis can vary depending on the size of the primary tumor, regional node involvement, and distant metastatic disease; however, multiple studies report a relatively short median survival time ranging from less than 4 months to 8 months. Histologically well- differentiated melanocytic neoplasms (HWDMN) are a variant of OMM and sometimes referred to as canine oral melanocytic neoplasms of low malignant potential. Unlike OMM, patients with HWDMN have longer survival times. Histopathologically, HWDMNs have well-differentiated melanocytes with a low mitotic index of 3 or less per 10 hpf and minimal nuclear atypia. HWDMNs have better prognosis with a mean survival time of up to 34 months. This article is a comparative review of OMM and its less aggressive counterpart.
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Affiliation(s)
- Won Suk Kim
- Department of Surgical Oncology, VCA West Coast Specialty and Emergency Animal Hospital, 18300 Euclid Street, Fountain Valley, CA 92708, USA;
- Correspondence:
| | - Arathi Vinayak
- Department of Surgical Oncology, VCA West Coast Specialty and Emergency Animal Hospital, 18300 Euclid Street, Fountain Valley, CA 92708, USA;
| | - Barbara Powers
- Antech Diagnostics, 17620 Mt Hermann St, Fountain Valley, CA 92708, USA;
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14
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Faulhaber EA, Janik E, Thamm DH. Adjuvant carboplatin for treatment of splenic hemangiosarcoma in dogs: Retrospective evaluation of 18 cases (2011-2016) and comparison with doxorubicin-based chemotherapy. J Vet Intern Med 2021; 35:1929-1934. [PMID: 34227148 PMCID: PMC8295674 DOI: 10.1111/jvim.16212] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 06/17/2021] [Accepted: 06/21/2021] [Indexed: 12/12/2022] Open
Abstract
Background Doxorubicin‐based chemotherapy after splenectomy remains the standard of care for hemangiosarcoma in dogs, but prognosis is generally poor. Hypothesis/objectives To determine clinical outcome with carboplatin chemotherapy after splenectomy compared to doxorubicin‐based protocols. A secondary objective was to determine if peripheral monocyte count was associated with prognosis. Animals Medical data from 40 dogs with histopathologically confirmed stage I or II hemangiosarcoma treated with splenectomy and carboplatin (n = 18) or doxorubicin‐based protocols (n = 22) were evaluated. Methods Retrospective study. Statistical associations were assessed using the Kaplan‐Meier method for survival times and log rank analysis for differences in survival time. Demographic information and survival times were obtained via medical records. Blood monocyte counts before and after surgery were documented. Results Median survival times were 160 days (48 to >559) and 139 days (54‐975), for dogs in the carboplatin (n = 18) and doxorubicin (n = 22) groups respectively (P = .82, hazards ratio [HR] [95% CI] = 1.075 [0.56‐2.07]). The median survival time for dogs whose monocyte counts decreased between splenectomy and chemotherapy initiation was 265 days, compared to 66 days for dogs with increased monocytes (P = .002, HR [95% CI] = 4.17 [1.21‐14.39]). Conclusions and Clinical Importance Carboplatin could be considered as an alternative in cases where doxorubicin might be contraindicated. Increasing postoperative peripheral monocyte counts might be associated with a poorer prognosis.
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Affiliation(s)
- Erica A Faulhaber
- Flint Animal Cancer Center, Department of Clinical Sciences, Colorado State University, Fort Collins, Colorado, USA
| | - Emily Janik
- Flint Animal Cancer Center, Department of Clinical Sciences, Colorado State University, Fort Collins, Colorado, USA
| | - Douglas H Thamm
- Flint Animal Cancer Center, Department of Clinical Sciences, Colorado State University, Fort Collins, Colorado, USA
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15
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Camerino M, Giacobino D, Iussich S, Ala U, Riccardo F, Cavallo F, Martano M, Morello E, Buracco P. Evaluation of prognostic impact of pre-treatment neutrophil to lymphocyte and lymphocyte to monocyte ratios in dogs with oral malignant melanoma treated with surgery and adjuvant CSPG4-antigen electrovaccination: an explorative study. Vet Comp Oncol 2021; 19:353-361. [PMID: 33443307 DOI: 10.1111/vco.12679] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 01/07/2021] [Accepted: 01/10/2021] [Indexed: 12/15/2022]
Abstract
The role of systemic inflammation in cancer's progression has been widely investigated, especially in melanoma in humans. Pre-treatment leukocyte counts and ratios play a recognized prognostic role in several types of malignancies, but no information is available regarding canine oral malignant melanoma (COMM). The purpose of this explorative retrospective study was to investigate the prognostic impact of pre-treatment neutrophil to lymphocyte (NLR) and lymphocyte to monocyte (LMR) ratios in dogs with oral malignant melanoma that underwent surgical resection and immunotherapy with adjuvant CSPG4-antigen electrovaccination. Thirty-nine dogs with histologically confirmed oral melanoma and with available pre-treatment haematological analyses, performed at maximum 60 days before the first treatment, were retrospectively enrolled. Statistical analysis was performed to explore possible correlations among NLR and LMR with age, clinical stage, tumour pigmentation, tumour size, nuclear atypia, mitotic index, Ki67, CSPG4 expression, ulceration, bone invasion and excision margins status. The impact of NLR and LMR on overall survival time (OST) was explored among various ratio cut off and across different time points with Kaplan-Meier method. No significant relationship was identified between leukocytes ratios and histological parameters, CSPG4 expression, excision margin status, age, tumour size and clinical stage. NLR and LMR did not display a prognostic impact on the survival time of the entire population. Pre-treatment leukocyte ratios may not represent a useful prognostic factor in dogs with oral melanoma, especially in absence of distant metastatic disease.
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Affiliation(s)
| | - Davide Giacobino
- Department of Veterinary Sciences, University of Torino, Grugliasco, Italy
| | - Selina Iussich
- Department of Veterinary Sciences, University of Torino, Grugliasco, Italy
| | - Ugo Ala
- Department of Veterinary Sciences, University of Torino, Grugliasco, Italy
| | - Federica Riccardo
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, 10 University of Torino, Torino, Italy
| | - Federica Cavallo
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, 10 University of Torino, Torino, Italy
| | - Marina Martano
- Department of Veterinary Sciences, University of Parma, Parma, Italy
| | - Emanuela Morello
- Department of Veterinary Sciences, University of Torino, Grugliasco, Italy
| | - Paolo Buracco
- Department of Veterinary Sciences, University of Torino, Grugliasco, Italy
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16
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Guillén A, Stiborova K, Ressel L, Blackwood L, Finotello R, Amores-Fuster I, Jama N, Killick D. Immunohistochemical expression and prognostic significance of MAGE-A in canine oral malignant melanoma. Res Vet Sci 2021; 137:226-234. [PMID: 34023546 DOI: 10.1016/j.rvsc.2021.05.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Revised: 04/12/2021] [Accepted: 05/12/2021] [Indexed: 11/18/2022]
Abstract
Canine oral malignant melanoma (COMM) is considered a chemo-resistant cancer with a poor long-term prognosis. The melanoma-associated antigen A (MAGE-A) genes, which belong to the cancer-testis antigen family, are expressed in several different canine cancers but not in normal somatic tissue. This study evaluates the expression of MAGE-A proteins and their prognostic role in COMM. The study was conducted in 2 parts. During the first part, biopsies from oral malignant melanomas from 43 dogs were examined and immunohistochemically assessed for expression of MAGE-A proteins. For the second part, the association between MAGE-A expression and outcome was assessed using follow-up data which was available for 20 dogs whose primary tumour had been controlled with surgery +/- radiation therapy. MAGE-A proteins were expressed in 88.4% (38/43) of oral malignant melanomas and had a predominantly cytoplasmic expression pattern. Immunopositivity was observed in more than 50% of the cells in 21 dogs (48.8%). Immunostaining intensity was classified as weak, moderate and intense in 16 (37%), 16 (37%) and 6 (14%) cases, respectively. No staining for MAGE-A was seen in 5 dogs (11%). Dogs whose COMM had weak MAGE-A staining intensity had a median survival time (MST) of 320 days while this was 129 days for dogs with moderate and intense immunostaining (p = 0.161). Dogs whose COMM had >50% of positive staining neoplastic cells had an MST of 141 days and dogs with a staining <50% had an MST of 320 days (p = 0.164). MAGE-A expression did not influence survival in our cohort.
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Affiliation(s)
- Alexandra Guillén
- Department of Small Animal Clinical Science, Institute of Infection, Veterinary and Ecological Science, University of Liverpool, Neston CH64 7TE, UK.
| | - Katerina Stiborova
- Department of Small Animal Clinical Science, Institute of Infection, Veterinary and Ecological Science, University of Liverpool, Neston CH64 7TE, UK
| | - Lorenzo Ressel
- Department of Veterinary Anatomy Physiology and Pathology, Institute of Infection, Veterinary and Ecological Science, University of Liverpool, Neston CH64 7TE, UK
| | - Laura Blackwood
- Department of Small Animal Clinical Science, Institute of Infection, Veterinary and Ecological Science, University of Liverpool, Neston CH64 7TE, UK
| | - Riccardo Finotello
- Department of Small Animal Clinical Science, Institute of Infection, Veterinary and Ecological Science, University of Liverpool, Neston CH64 7TE, UK
| | - Isabel Amores-Fuster
- Department of Small Animal Clinical Science, Institute of Infection, Veterinary and Ecological Science, University of Liverpool, Neston CH64 7TE, UK
| | - Nimo Jama
- Cellular and Molecular Physiology, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - David Killick
- Department of Small Animal Clinical Science, Institute of Infection, Veterinary and Ecological Science, University of Liverpool, Neston CH64 7TE, UK
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17
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Tani H, Miyamoto R, Noguchi S, Kurita S, Nagashima T, Michishita M, Yayoshi N, Tamura K, Bonkobara M. A canine case of malignant melanoma carrying a KIT c.1725_1733del mutation treated with toceranib: a case report and in vitro analysis. BMC Vet Res 2021; 17:147. [PMID: 33827546 PMCID: PMC8028755 DOI: 10.1186/s12917-021-02864-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 03/27/2021] [Indexed: 12/11/2022] Open
Abstract
Background Canine malignant melanoma is highly aggressive and generally chemoresistant. Toceranib is a kinase inhibitor drug that inhibits several tyrosine kinases including the proto-oncogene receptor tyrosine kinase KIT. Although canine malignant melanoma cells often express KIT, a therapeutic effect for toceranib has yet to be reported for this tumor, with only a small number of patients studied to date. This is a case report of a dog with malignant melanoma that experienced a transient response to toceranib. Furthermore, the KIT expressed in the tumor of this case was examined using molecular analysis. Case presentation A Shiba Inu dog presented with a gingival malignant melanoma extending into surrounding structures with metastasis to a submandibular lymph node. The dog was treated with toceranib (Palladia®; 2.6–2.9 mg/kg, orally, every other day) alone. Improvement of tumor-associated clinical signs (e.g., halitosis, tumor hemorrhage, trismus, and facial edema) with reduced size of the metastatic lymph node was observed on Day 15. The gingival tumor and associated masses in the masseter and pterygoid muscles decreased in size by Day 29 of treatment. Toceranib treatment was terminated on Day 43 due to disease progression and the dog died on Day 54. The tumor of this dog had a novel deletion mutation c.1725_1733del within KIT and the mutation caused ligand-independent phosphorylation of KIT, which was suppressed by toceranib. This mutation was considered to be an oncogenic driver mutation in the tumor of this dog, thereby explaining the anti-tumor activity of toceranib. Conclusions This is the first report that presents a canine case of malignant melanoma that responded to toceranib therapy. KIT encoded by KIT harboring a mutation c.1725_1733del is a potential therapeutic target for toceranib in canine malignant melanoma. Further investigation of the KIT mutation status and toceranib therapy in canine malignant melanoma will need to be undertaken. Supplementary Information The online version contains supplementary material available at 10.1186/s12917-021-02864-3.
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Affiliation(s)
- Hiroyuki Tani
- Department of Veterinary Clinical Pathology, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Ryo Miyamoto
- Department of Veterinary Clinical Pathology, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Syunya Noguchi
- Department of Veterinary Anatomy, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Sena Kurita
- Department of Veterinary Clinical Pathology, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Tomokazu Nagashima
- Department of Veterinary Pathology, Nippon Veterinary and Life Science University, Tokyo, Japan.,Veterinary Medical Teaching Hospital, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Masaki Michishita
- Department of Veterinary Pathology, Nippon Veterinary and Life Science University, Tokyo, Japan.,Research Center for Animal Life Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Naoko Yayoshi
- Veterinary Medical Teaching Hospital, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Kyoichi Tamura
- Department of Veterinary Clinical Pathology, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Makoto Bonkobara
- Department of Veterinary Clinical Pathology, Nippon Veterinary and Life Science University, Tokyo, Japan. .,Research Center for Animal Life Science, Nippon Veterinary and Life Science University, Tokyo, Japan.
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18
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Iwano M, Sadahiro K, Maruo T, Kawarai S, Kayanuma H, Orito K. Serum concentration and safety of intravenous drip versus subcutaneous administration of carboplatin in dogs. J Vet Med Sci 2021; 83:775-779. [PMID: 33716231 PMCID: PMC8182319 DOI: 10.1292/jvms.20-0653] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Carboplatin is used to treat certain cancers in dogs and cats and is routinely administered via intravenous drip (IVD). Subcutaneous (SC) administration has
also been described. However, the toxicity, serum concentrations, and area under blood concentration-time curves (AUCs) of SC carboplatin are unknown. This
study aimed to compare serum carboplatin concentrations in dogs after SC and IVD and to monitor any adverse events. In this crossover study, five dogs received
SC or IV carboplatin (300 mg/m2). After a minimum of 3 weeks, each dog received the other treatment. No gross skin toxicity or abnormal clinical
signs were observed in any of the dogs. Blood test abnormalities were detected in most dogs. Decreased neutrophil and platelet counts, and increased C-reactive
protein (CRP) levels were found. There was no significant difference in the neutropenia, thrombocytopenia, and CRP scores between the groups. Systemic
toxicities of SC carboplatin were comparable to those of IVD carboplatin. The time to maximum carboplatin concentration after SC was longer than that after IVD
(P<0.001). SC carboplatin remained in the serum longer than IVD carboplatin (P=0.008). The AUC of SC was less than that
of IVD (P=0.002). The AUC and time taken to reach the maximum concentration of SC carboplatin were lower than those of IVD carboplatin. This
study suggests that SC carboplatin may be an efficacious option for the treatment of tumors in dogs, particularly where IVD administration is challenging.
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Affiliation(s)
- Masataka Iwano
- Veterinary Teaching Hospital, Azabu University, 1-17-71 Fuchinobe, Chuo, Sagamihara, Kanagawa 252-5201, Japan
| | - Kohei Sadahiro
- Laboratory of Veterinary Physiology II, School of Veterinary Medicine, Azabu University, 1-17-71 Fuchinobe, Chuo, Sagamihara, Kanagawa 252-5201, Japan
| | - Takuya Maruo
- Laboratory of Veterinary Radiology, School of Veterinary Medicine, Azabu University, 1-17-71 Fuchinobe, Chuo, Sagamihara, Kanagawa 252-5201, Japan
| | - Shinpei Kawarai
- Veterinary Teaching Hospital, Azabu University, 1-17-71 Fuchinobe, Chuo, Sagamihara, Kanagawa 252-5201, Japan
| | - Hideki Kayanuma
- Laboratory of Veterinary Radiology, School of Veterinary Medicine, Azabu University, 1-17-71 Fuchinobe, Chuo, Sagamihara, Kanagawa 252-5201, Japan
| | - Kensuke Orito
- Laboratory of Veterinary Physiology II, School of Veterinary Medicine, Azabu University, 1-17-71 Fuchinobe, Chuo, Sagamihara, Kanagawa 252-5201, Japan
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19
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Reck A, Kessler M. Melanocytic tumours of the nasal planum in cats: 10 cases (2004-2019). J Small Anim Pract 2020; 62:131-136. [PMID: 33244779 DOI: 10.1111/jsap.13265] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 09/30/2020] [Accepted: 10/27/2020] [Indexed: 01/25/2023]
Abstract
OBJECTIVES To better characterise signalment, biologic behaviour, and treatment outcome in melanocytic tumours of the nasal planum in cats. MATERIALS AND METHODS Retrospective study in cats diagnosed with histopathologically confirmed melanocytic tumours on the nasal planum. RESULTS Ten cats were identified with melanocytic tumours of the nasal planum. Pigmentation of the nasal planum seemed to be a predisposing factor. Seven cats were diagnosed histopathologically with a malignant melanoma, three with a benign melanocytoma. One of the cats developed a lymph node metastasis despite diagnosis of a well-differentiated melanocytic neoplasia. In four cases, a pigmented mass, which was initially stable over a long time, showed a sudden rapid progression suggesting malignant transformation. Treatments included hypofractionated radiation therapy (n = 6) and surgical resection (n = 1). In three cats no further treatment was pursued. Complete (n = 3) and partial (n = 3) remissions were observed in cats treated with radiation therapy; however, all experienced tumour progression or recurrence after a short period of time. Most of the cats (n = 7) had to be euthanased due to tumour progression (median survival time: 265 days). CLINICAL SIGNIFICANCE The present case series provides insights in clinical presentation and clinical outcomes of cats with melanocytic tumours of the nasal planum.
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Affiliation(s)
- A Reck
- Oncology service of Hofheim Small Animal Hospital, Katharina-Kemmler-Straße 7, Hofheim, 65719, Germany
| | - M Kessler
- Oncology service of Hofheim Small Animal Hospital, Katharina-Kemmler-Straße 7, Hofheim, 65719, Germany
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20
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Worth DB, Risselada M, Cooper BR, Moore GE. Repeatability of in vitro carboplatin elution from carboplatin-impregnated calcium sulfate hemihydrate beads made in a clinic setting. Vet Surg 2020; 49:1609-1617. [PMID: 32870533 DOI: 10.1111/vsu.13511] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 07/13/2020] [Accepted: 08/07/2020] [Indexed: 12/26/2022]
Abstract
OBJECTIVE To evaluate the intra-lot and inter-lot consistency and total carboplatin elution over 25 days from carboplatin-impregnated calcium sulfate hemihydrate (C-I CSH) beads manufactured in a clinic setting. STUDY DESIGN In vitro elution study. METHODS Two volumes of carboplatin were mixed with CSH to yield 4 mg and 8 mg C-I CSH doses. Two lots of beads were made for each concentration and split into five doses (n = 10 per concentration). Beads hardened in molds and were placed in a covered six-well plate, submerged in phosphate-buffered saline, and incubated with samples collected at 12 time points (0, 6, 12, and 24 hours and 2, 3, 5, 7, 10, 14, 18, and 25 days). The amount of carboplatin in each sample was evaluated by high-performance liquid chromatography/mass spectrometry. Correction for carboplatin degradation and dilution was applied, and eluted carboplatin was calculated. Intra-lot and inter-lot coefficient of variation (CV) was calculated for each concentration. RESULTS The intra-lot CV ranged between 7.9% and 23.1%, and the inter-lot CV ranged from 3.5% to 10.3%, with improvement noted in each successive lot of beads. Mean peak eluted carboplatin was 2.45 ± 0.43 mg (61%) and 3.68 ± 0.41 mg (45.9%) for the 4-mg and 8-mg C-I CSH beads, respectively, with both occurring at the 12-hour timepoint. CONCLUSION Progressive improvement in variability with successive lots of beads indicated a learning curve with bead manufacturing with a low variation both within and between lots of C-I CSH beads. CLINICAL SIGNIFICANCE On-site mixing of carboplatin with commercial CSH bead powder leads to a low variation of carboplatin per bead dose.
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Affiliation(s)
- David B Worth
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Purdue University, Indiana
| | - Marije Risselada
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Purdue University, Indiana
| | | | - George E Moore
- Department of Veterinary Administration, College of Veterinary Medicine, Purdue University, Indiana
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21
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Wood EA, Lu Z, Jia S, Assumpção ALFV, Van Hesteren MA, Huelsmeyer MK, Vail DM, Pan X. Pevonedistat targeted therapy inhibits canine melanoma cell growth through induction of DNA re-replication and senescence. Vet Comp Oncol 2020; 18:269-280. [PMID: 31665821 PMCID: PMC7473101 DOI: 10.1111/vco.12546] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 10/02/2019] [Accepted: 10/03/2019] [Indexed: 02/04/2023]
Abstract
MLN4924 (pevonedistat) is a potent and selective NEDD8-activating enzyme (NAE) inhibitor. The NEDD8-regulated neddylation system is responsible for the regulated degradation of intracellular proteins with important cellular functions in cancer cell growth, apoptosis, angiogenesis and metastasis. In human melanoma, inhibition of NAE results in induction of DNA re-replication, S phase cell cycle arrest, DNA damage and apoptosis. The study aimed to assess the anti-cancer effect of MLN4924 on canine malignant melanoma cell lines and patient samples and to elucidate the underlying mechanisms. Canine melanoma cell lines and primary patient samples were evaluated for cell viability after incubation with varying concentrations of MLN4924 or dimethyl sulfoxide. Apoptosis, cell proliferation and senescence assays were performed to address underlying mechanisms of MLN4924-mediated anti-tumour effects. Gene expression of seven previously identified deregulated genes in human melanoma was compared in sensitive vs resistant samples. MLN4924 treatment significantly reduced the viability of canine melanoma cell lines and primary samples in a dose- and time-dependent manners. MLN4924 promoted cell apoptosis and inhibited cell growth through induction of DNA re-replication and cell senescence. While the majority of canine melanoma samples demonstrated sensitivity at nanomolar ranges, some samples were resistant to the treatment. Modulation of P21 levels correlated with canine melanoma cell sensitivity. These results provided justification for further exploration of MLN4924 as a treatment of canine melanoma.
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Affiliation(s)
| | - Zhanping Lu
- Department of Medical Sciences, School of Veterinary Medicine
| | - Shuai Jia
- Department of Medical Sciences, School of Veterinary Medicine
| | | | | | - Mike K Huelsmeyer
- Department of Medical Sciences, School of Veterinary Medicine.,The Carbone Cancer Center, University of Wisconsin-Madison, Madison, Wisconsin
| | - David M Vail
- Department of Medical Sciences, School of Veterinary Medicine.,The Carbone Cancer Center, University of Wisconsin-Madison, Madison, Wisconsin
| | - Xuan Pan
- Department of Medical Sciences, School of Veterinary Medicine.,The Carbone Cancer Center, University of Wisconsin-Madison, Madison, Wisconsin
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22
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Santamaria AC, Simcock JO, Kuntz CA. Adverse events and outcomes in dogs with appendicular osteosarcoma treated with limb amputation and a single subcutaneous infusion of carboplatin. J Am Vet Med Assoc 2020; 255:345-351. [PMID: 31298641 DOI: 10.2460/javma.255.3.345] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To evaluate adverse events and outcomes in dogs with appendicular osteosarcoma treated with limb amputation followed by a single SC infusion of carboplatin. ANIMALS 45 client-owned dogs with appendicular osteosarcoma treated with limb amputation and SC infusion of carboplatin between January 1, 2006, and January 15, 2017. PROCEDURES Medical records were reviewed, and data collected included signalment, tumor location, treatment, results of clinicopathologic analyses and diagnostic imaging, adverse effects of chemotherapy, metastasis-free interval, survival time, and communications with owners and referring veterinarians. Findings were evaluated with the Kaplan-Meier survival analysis and Mantel-Haenszel log-rank test. RESULTS 45 dogs were identified that met the inclusion criteria (12 of the 45 dogs had been reported in a previous case series). No dogs had pulmonary metastases detectable by CT or radiography before treatment. All dogs completed the protocol as planned. Median survival time (MST) was 196 days; metastasis-free interval was 197 days. Three of the 45 (7%) dogs required hospitalization for gastrointestinal signs related to chemotherapy. There were no chemotherapy-related deaths. CONCLUSIONS AND CLINICAL RELEVANCE Results indicated that although treatment with SC infusion of carboplatin was well tolerated, the MST for dogs in the present study was similar to reported MSTs in dogs with appendicular osteosarcoma treated with limb amputation alone and was in the lower range of historically reported survival times for dogs receiving IV adjunctive chemotherapy. Therefore, we could not recommend this protocol of SC infusion of carboplatin but recommended that protocols with IV administration of carboplatin be used instead.
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23
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Coffee C, Roush JK, Higginbotham ML. Carboplatin-induced myelosuppression as related to body weight in dogs. Vet Comp Oncol 2020; 18:804-810. [PMID: 32452107 DOI: 10.1111/vco.12622] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 05/18/2020] [Accepted: 05/19/2020] [Indexed: 12/01/2022]
Abstract
Smaller dogs are known to have an increased risk of chemotherapy-induced myelosuppression for doxorubicin, mitoxantrone and melphalan. This retrospective study aimed to determine if dogs <15 kg and <10 kg experienced greater degrees of myelosuppression following treatment with carboplatin chemotherapy compared with dogs ≥15 kg. One hundred and one dogs treated with carboplatin for a variety of malignancies were retrospectively analysed. Eight dogs (61%) weighing <10 kg, three (38%) weighing 10 kg to <15 kg and 14 (17%) weighing ≥15 kg experienced a grade 3 or 4 neutropenia. Five dogs (38%) weighing <10 kg, two (25%) weighing 10 kg to <15 kg and 13 (16%) weighing ≥15 kg experienced a grade 3 or 4 thrombocytopenia. Dogs <10 kg were significantly more likely to develop a grade 3 or 4 neutropenia following carboplatin than dogs ≥10 kg (3.5 RR; 95% CI, 1.9-6.3; P < .001). Dogs <15 kg were also significantly more likely to develop a grade 3 or 4 neutropenia than dogs ≥15 kg (3 RR; 95% CI, 1.6-5.6; P = .004). Dogs <10 kg were significantly more likely to develop a grade 3 or 4 thrombocytopenia than those dogs ≥10 kg (2.5 RR; 95% CI, 1.1-5.6; P = .006). Hospitalization was significantly more likely for dogs <10 kg vs ≥10 kg (P = .014) as well as for dogs <15 kg vs ≥15 kg (P = .039). This study demonstrates an increased risk of carboplatin-induced myelosuppression in dogs <15 kg, and particularly those <10 kg. This information should be considered by clinicians when making decisions regarding the initial carboplatin dose for smaller canine patients, especially those <15 kg.
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Affiliation(s)
- Calli Coffee
- Department of Clinical Sciences, College of Veterinary Medicine, Kansas State University, Manhattan, Kansas, USA
| | - James K Roush
- Department of Clinical Sciences, College of Veterinary Medicine, Kansas State University, Manhattan, Kansas, USA
| | - Mary Lynn Higginbotham
- Department of Clinical Sciences, College of Veterinary Medicine, Kansas State University, Manhattan, Kansas, USA
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24
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PDPN Is Expressed in Various Types of Canine Tumors and Its Silencing Induces Apoptosis and Cell Cycle Arrest in Canine Malignant Melanoma. Cells 2020; 9:cells9051136. [PMID: 32380790 PMCID: PMC7290317 DOI: 10.3390/cells9051136] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 05/02/2020] [Accepted: 05/04/2020] [Indexed: 02/07/2023] Open
Abstract
Podoplanin (PDPN), a small transmembrane mucin-like glycoprotein, is ectopically expressed. It is also known to be linked with several aspects of tumor malignancy in some types of human tumors, including invasion, metastasis, and cancer stemness. However, there are few reports on the expression of dog PDPN (dPDPN) in canine tumors, and the association between dPDPN and tumor malignancy has not been elucidated. We identified that 11 out of 18 types of canine tumors expressed dPDPN. Furthermore, 80% of canine malignant melanoma (MM), squamous cell carcinoma, and meningioma expressed dPDPN. Moreover, the expression density of dPDPN was positively associated with the expression of the Ki67 proliferation marker. The silencing of dPDPN by siRNAs resulted in the suppression of cell migration, invasion, stem cell-like characteristics, and cell viability in canine MM cell lines. The suppression of cell viability was caused by the induction of apoptosis and G2/M phase cell cycle arrest. Overall, this study demonstrates that dPDPN is expressed in various types of canine tumors and that dPDPN silencing suppresses cell viability through apoptosis and cell cycle arrest, thus providing a novel biological role for PDPN in tumor progression.
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25
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Turek M, LaDue T, Looper J, Nagata K, Shiomitsu K, Keyerleber M, Buchholz J, Gieger T, Hetzel S. Multimodality treatment including ONCEPT for canine oral melanoma: A retrospective analysis of 131 dogs. Vet Radiol Ultrasound 2020; 61:471-480. [PMID: 32323424 DOI: 10.1111/vru.12860] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2019] [Revised: 12/20/2019] [Accepted: 01/27/2020] [Indexed: 12/23/2022] Open
Abstract
Canine oral melanoma (OM) is an aggressive cancer with a high rate of metastasis. Surgery and/or radiotherapy (RT) are effective local treatments, yet many dogs succumb to distant metastasis. Immunotherapy represents an attractive strategy for this potentially immunogenic tumor. The objective of this multi-institutional retrospective study was to examine the clinical outcome of dogs with OM treated with ONCEPT melanoma vaccine. Most dogs also underwent surgery and/or RT (8 Gy × four weekly fractions). Dogs with distant metastasis at diagnosis and those receiving concurrent chemotherapy were excluded. One hundred thirty-one dogs treated with ONCEPT were included: 62 had adequate local tumor control defined as complete tumor excision or irradiation of residual microscopic disease; 15 were treated in the microscopic disease setting following an incomplete excision without adjuvant RT; and 54 had gross disease. Median time to progression, median progression-free survival, and median tumor-specific overall survival were 304, 260, and 510 days, respectively. In multivariable analysis, presence of gross disease correlated negatively with all measures of clinical outcome. Other negative prognostic indicators were primary tumor ≥2 cm, higher clinical stage (stages 2 and 3), presence of lymph node metastasis at diagnosis, and caudal location in the oral cavity. Radiotherapy had a protective effect against tumor progression. To date, this is the largest reported series of dogs with OM treated with ONCEPT. Several previously reported prognostic indicators were confirmed.
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Affiliation(s)
- Michelle Turek
- Department of Surgical Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin
| | - Tracy LaDue
- Southeast Veterinary Oncology and Internal Medicine, Orange Park, Florida
| | - Jayme Looper
- Department of Veterinary Clinical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, Louisiana
| | - Koichi Nagata
- Department of Veterinary Biosciences and Diagnostic imaging, College of Veterinary Medicine, University of Georgia, Athens, Georgia
| | - Keijiro Shiomitsu
- Department of Small Animal Clinical Sciences, College of Veterinary Medicine, University of Florida, Gainesville, Florida
| | - Michele Keyerleber
- Department of Clinical Sciences, Cummings School of Veterinary Medicine, Tufts University, Medford, Massachusetts
| | - Julia Buchholz
- Animal Oncology and Imaging Center, Hunenberg, Switzerland
| | - Tracy Gieger
- Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina
| | - Scott Hetzel
- Department of Biostatistics and Medical Informatics, University of Wisconsin-Madison, Madison, Wisconsin
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26
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Canine Melanomas as Models for Human Melanomas: Clinical, Histological, and Genetic Comparison. Genes (Basel) 2019; 10:genes10070501. [PMID: 31262050 PMCID: PMC6678806 DOI: 10.3390/genes10070501] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Revised: 06/16/2019] [Accepted: 06/22/2019] [Indexed: 12/18/2022] Open
Abstract
Despite recent genetic advances and numerous ongoing therapeutic trials, malignant melanoma remains fatal, and prognostic factors as well as more efficient treatments are needed. The development of such research strongly depends on the availability of appropriate models recapitulating all the features of human melanoma. The concept of comparative oncology, with the use of spontaneous canine models has recently acquired a unique value as a translational model. Canine malignant melanomas are naturally occurring cancers presenting striking homologies with human melanomas. As for many other cancers, dogs present surprising breed predispositions and higher frequency of certain subtypes per breed. Oral melanomas, which are much more frequent and highly severe in dogs and cutaneous melanomas with severe digital forms or uveal subtypes are subtypes presenting relevant homologies with their human counterparts, thus constituting close models for these human melanoma subtypes. This review addresses how canine and human melanoma subtypes compare based on their epidemiological, clinical, histological, and genetic characteristics, and how comparative oncology approaches can provide insights into rare and poorly characterized melanoma subtypes in humans that are frequent and breed-specific in dogs. We propose canine malignant melanomas as models for rare non-UV-induced human melanomas, especially mucosal melanomas. Naturally affected dogs offer the opportunity to decipher the genetics at both germline and somatic levels and to explore therapeutic options, with the dog entering preclinical trials as human patients, benefiting both dogs and humans.
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27
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Stiborova K, Treggiari E, Amores-Fuster I, Del Busto I, Killick D, Maddox T, Marrington M, Mason SL, Blackwood L. Haematologic toxicity in dogs with mast cell tumours treated with vinblastine/prednisolone chemotherapy with/without radiotherapy. J Small Anim Pract 2019; 60:534-542. [PMID: 31245847 DOI: 10.1111/jsap.13047] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 04/14/2019] [Accepted: 04/24/2019] [Indexed: 11/27/2022]
Abstract
OBJECTIVES To determine whether dogs with surgically excised mast cell tumours receiving a vinblastine/prednisolone chemotherapy protocol in combination with radiation therapy are at greater risk of myelosuppression than patients receiving the chemotherapy protocol alone. MATERIALS AND METHODS Retrospective study of clinical records of dogs with mast cell tumours that, subsequent to surgical excision, had received combination vinblasine/prednisolone chemotherapy. Dogs were assigned to two groups: those treated with adjunctive radiotherapy and vinblastine/prednisolone (RT group) and those treated with surgery followed by vinblastine/prednisolone alone (control group). Haematology results were compared between groups. RESULTS Forty-three cases and 43 controls of similar breed, age and bodyweight were included. Concurrent radiation and vinblastine chemotherapy did not appear to increase the risk of neutropenia, which was observed in 18.6 and 23.2% of cases in the RT and control groups, respectively. CLINICAL SIGNIFICANCE Radiation and vinblastine chemotherapy can be safely combined in dogs with mast cell tumours without increasing the risk of clinically important myelosuppression.
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Affiliation(s)
- K Stiborova
- Department of Small Animal Clinical Science, Leahurst Campus, University of Liverpool, Neston, CH64 7TE, UK
| | - E Treggiari
- Department of Small Animal Clinical Science, Leahurst Campus, University of Liverpool, Neston, CH64 7TE, UK.,Centro Specialistico Veterinario, 20141, Milan, Italy
| | - I Amores-Fuster
- Department of Small Animal Clinical Science, Leahurst Campus, University of Liverpool, Neston, CH64 7TE, UK
| | - I Del Busto
- Department of Small Animal Clinical Science, Leahurst Campus, University of Liverpool, Neston, CH64 7TE, UK
| | - D Killick
- Department of Small Animal Clinical Science, Leahurst Campus, University of Liverpool, Neston, CH64 7TE, UK
| | - T Maddox
- Department of Small Animal Clinical Science, Leahurst Campus, University of Liverpool, Neston, CH64 7TE, UK
| | - M Marrington
- Department of Small Animal Clinical Science, Leahurst Campus, University of Liverpool, Neston, CH64 7TE, UK.,Northwest Veterinary Specialists, Sutton Weaver, Runcorn, WA7 3FW, UK
| | - S L Mason
- Department of Small Animal Clinical Science, Leahurst Campus, University of Liverpool, Neston, CH64 7TE, UK.,Southfields Veterinary Specialists, Basildon, SS15 6TP, UK
| | - L Blackwood
- Department of Small Animal Clinical Science, Leahurst Campus, University of Liverpool, Neston, CH64 7TE, UK
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28
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Henklewska M, Pawlak A, Kutkowska J, Pruchnik H, Rapak A, Obminska-Mrukowicz B. In vitro effects of the activity of novel platinum (II) complex in canine and human cell lines. Vet Comp Oncol 2019; 17:497-506. [PMID: 31111625 DOI: 10.1111/vco.12511] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 05/13/2019] [Accepted: 05/14/2019] [Indexed: 01/04/2023]
Abstract
The anticancer activity of novel platinum derivative, a complex of platinum with tris(2-carboxyethyl)phosphine (Pt-TCEP), has been evaluated in canine (D-17) and human osteosarcoma (U2-OS) cell lines. Viability of cells after incubation for 24 or 72 hours with increasing concentrations (0.625, 1.25, 2.50, 5, 10 and 20 μM) of Pt-TCEP was tested in an MTT assay and compared to effect of cisplatin. Longer-term effect of Pt-TCEP was evaluated in the colony-forming unit assay after 24 hours exposure to the Pt-TCEP (2 and 3 μM) and subsequent incubation for 2 weeks. The influence of the compound on the cell cycle was measured after 24 hours treatment with Pt-TCEP (3 μM). Its pro-apoptotic activity was examined after 24 hours treatment with Pt-TCEP (1.25, 2.50, 5, 10 and 20 μM) using flow cytometry. Expression of main proteins involved in apoptosis was measured after exposure for 24 hours to 3 or 5 μM Pt-TCEP in Western Blot. The compound much more effectively decreased cell viability than cisplatin in case of both cell lines. IC50 of Pt-TCEP was 5.93 ± 0.12 in D-17 and 3.45 ± 0.14 in U2-OS cell lines after 24 hours, and 1.77 ± 0.14 in D-17 and 1.53 ± 0.11 in U2-OS after 72 hours (P < .05). The compound arrested cells in the G2/M phase and inhibited the ability of cells to form colonies. Pt-TCEP induced caspase-dependent apoptosis. The expression of the anti-apoptotic Bcl-XL protein was decreased after Pt-TCEP treatment in both cell lines. The results confirmed anti-cancer activity of Pt-TCEP against canine and human osteosarcoma cell lines.
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Affiliation(s)
- Marta Henklewska
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, Wroclaw, Poland
| | - Aleksandra Pawlak
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, Wroclaw, Poland
| | - Justyna Kutkowska
- Laboratory of Tumor Molecular Immunobiology, Ludwik Hirszfeld Institute of Immunology and Experimental Therapy Polish Academy of Science, Wroclaw, Poland
| | - Hanna Pruchnik
- Department of Physics and Biophysics, Faculty of Life Sciences and Technology, Wroclaw University of Environmental and Life Sciences, Wroclaw, Poland
| | - Andrzej Rapak
- Laboratory of Tumor Molecular Immunobiology, Ludwik Hirszfeld Institute of Immunology and Experimental Therapy Polish Academy of Science, Wroclaw, Poland
| | - Bozena Obminska-Mrukowicz
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, Wroclaw, Poland
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29
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Hansen KS, Kent MS. Imaging in Non-neurologic Oncologic Treatment Planning of the Head and Neck. Front Vet Sci 2019; 6:90. [PMID: 30984771 PMCID: PMC6448413 DOI: 10.3389/fvets.2019.00090] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2018] [Accepted: 03/06/2019] [Indexed: 12/26/2022] Open
Abstract
Imaging is critical for the diagnosis and staging of veterinary oncology patients. Although cytology or biopsy is generally required for diagnosis, imaging characteristics inform the likelihood of a cancer diagnosis, can result in a prioritized list of differentials that guide further staging tests, and assist in the planning of surgery, radiation, and chemotherapy options. Advanced imaging, such as CT and MRI, can better define the extent of disease for surgical and radiation planning for head and neck cancer cases in particular. Additionally, new imaging technologies are continually being translated into veterinary fields, and they may provide more options for cancer patients as they become more widely available.
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Affiliation(s)
- Katherine S Hansen
- Department of Surgical and Radiological Sciences, UC Davis School of Veterinary Medicine, Davis, CA, United States
| | - Michael S Kent
- Department of Surgical and Radiological Sciences, UC Davis School of Veterinary Medicine, Davis, CA, United States
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30
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Girens R, Bukoski A, Maitz CA, Boston SE, Borgatti A, Sprinkle M, Orrego D, Kesl S, Selting K. Use of computed tomography and radiation therapy planning software to develop a novel formula for body surface area calculation in dogs. J Vet Intern Med 2019; 33:792-799. [PMID: 30835925 PMCID: PMC6430937 DOI: 10.1111/jvim.15440] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Accepted: 01/18/2019] [Indexed: 11/29/2022] Open
Abstract
Background Body surface area (BSA) can reflect metabolic rate that might normalize dosing of chemotherapeutics across widely variable weights within a species. The current BSA formula for dogs lacks height, length, and body condition. Hypothesis Computed tomography (CT) imaging will allow inclusion of morphometric variables in allometric modeling of BSA in dogs resulting in an improved formula for BSA estimation. Animals Forty‐eight dogs from 4 institutions with whole‐body CT images. Methods Retrospective and prospective case series. Body surface area was contoured using whole‐body CT scans and radiation therapy planning software. Body length and height were determined from CT images and also in 9 dogs by physical measurement. Nonlinear regression was used to model the BSA data sets using allometric equations. Goodness‐of‐fit criteria included average relative deviation, mean standard error, Akaike information criterion, and r2 (derived from the r‐value generated by regression models). Results Contoured BSA differed from the current formula by −9% to +19%. Nonlinear regression on untransformed data yielded BSA = 0.0134 × body weight [kg]∧0.4746 × length (cm)∧0.6393 as the best‐fit model. Heteroscedasticity (increasing morphometric variability with increasing BSA) was an important finding. Conclusions and Clinical Importance Computed tomography‐derived BSA was used to incorporate body length into a novel BSA formula. This formula can be applied prospectively to determine whether it correlates with adverse events attributed to chemotherapy.
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Affiliation(s)
- Renee Girens
- Department of Veterinary Medicine and Surgery, University of Missouri, Columbia, Missouri
| | - Alex Bukoski
- Department of Veterinary Medicine and Surgery, University of Missouri, Columbia, Missouri
| | - Charles A Maitz
- Department of Veterinary Medicine and Surgery, University of Missouri, Columbia, Missouri
| | - Sarah E Boston
- Department of Small Animal Clinical Sciences, University of Florida, Gainesville, Florida
| | - Antonella Borgatti
- Department of Veterinary Clinical Sciences, University of Minnesota, St. Paul, Minnesota
| | - Megan Sprinkle
- Department of Veterinary Medicine and Surgery, University of Missouri, Columbia, Missouri
| | | | | | - Kim Selting
- Department of Veterinary Medicine and Surgery, University of Missouri, Columbia, Missouri
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31
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Radiobiological Characterization of Canine Malignant Melanoma Cell Lines with Different Types of Ionizing Radiation and Efficacy Evaluation with Cytotoxic Agents. Int J Mol Sci 2019; 20:ijms20040841. [PMID: 30781345 PMCID: PMC6413050 DOI: 10.3390/ijms20040841] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 02/12/2019] [Accepted: 02/12/2019] [Indexed: 01/19/2023] Open
Abstract
Canine malignant melanoma (CMM) is a locally and systemically aggressive cancer that shares many biological and clinical characteristics with human mucosal melanoma. Hypofractionated radiation protocols have been used to treat CMM but little is known about its radiation biology. This pilot study is designed to investigate response of CMM cell lines to various ionizing radiations and cytotoxic agents to better understand this canine cancer. Four CMM cell lines were evaluated by clonogenic survival assay under aerobic and hypoxic conditions and parameters such as alpha beta (α/β) ratio, oxygen enhancement ratio (OER), and relative biological effectiveness (RBE) were calculated after 137Cs, 6 megavoltage (MV) photon, or carbon ion irradiation. Six cytotoxic agents (cisplatin, camptothecin, mitomycin C, bleomycin, methtyl methanesulfonate and etoposide) were also assessed for their efficacy. Under aerobic condition with 6 MV photon, the α/β ratio of the four cell lines ranged from 0.3 to >100, indicating a wide variation of cellular sensitivity. The ratio increased under hypoxic condition compared to aerobic condition and this was more dramatic in 137Cs and 6 MV photon treatments. OER of carbon was lower than 137Cs at D10 in 3 of the 4 cell lines. The RBE values generally increased with the increase of LET. Different cell lines showed sensitivity/resistance to different cytotoxic agents. This study revealed that CMM has a wide range of radiosensitivity and that hypoxia can reduce it, indicating that widely used hypofractionated protocols may not be optimal for all CMM patients. Several cytotoxic agents that have never been clinically assessed can improve treatment outcome.
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32
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Milevoj N, Tratar UL, Nemec A, Brožič A, Žnidar K, Serša G, Čemažar M, Tozon N. A combination of electrochemotherapy, gene electrotransfer of plasmid encoding canine IL-12 and cytoreductive surgery in the treatment of canine oral malignant melanoma. Res Vet Sci 2019; 122:40-49. [PMID: 30453179 DOI: 10.1016/j.rvsc.2018.11.001] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Revised: 10/15/2018] [Accepted: 11/11/2018] [Indexed: 01/21/2023]
Abstract
The aim of this study was to evaluate the safety and efficacy of the combination of electrochemotherapy (ECT) with bleomycin and gene electrotransfer (GET) of plasmid encoding canine interleukin 12 (IL-12) for the treatment of canine oral malignant melanoma (OMM). Our focus was to determine the effect of the treatment on achieving local tumor control and stimulation of an antitumor immune response. Nine dogs with histologically confirmed OMM stage I to III were included in a prospective, non-randomized study. The dogs were treated with a combination of cytoreductive surgery, ECT and IL-12 GET, which was repeated up to five times, depending on the clinical response to the treatment, evaluated according to the follow-up protocol (7, 14 and 28 days after, the last treatment). One month after treatment, the objective response (OR) rate was 67% (6/9). Median survival time (MST) was 6 months and, even though the disease progressed in 8/9 patients at the end of the observation period (2 to 22 months), four animals were euthanized due to tumor-unrelated reasons. In addition, we observed a decline in the percentage of regulatory T cells (Treg) in the peripheral blood in the course of the treatment, which could be attributed to a systemic antitumor response to IL-12 GET. The results of this study suggest that a combination of ECT and IL-12 GET may be beneficial for dogs with OMM, especially when other treatment approaches are not acceptable due to their invasiveness or cost.
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Affiliation(s)
- Nina Milevoj
- University of Ljubljana, Veterinary Faculty, Small Animal Clinic, Cesta v Mestni log 47, 1000 Ljubljana, Slovenia
| | | | - Ana Nemec
- University of Ljubljana, Veterinary Faculty, Small Animal Clinic, Cesta v Mestni log 47, 1000 Ljubljana, Slovenia
| | - Andreja Brožič
- Institute of Oncology Ljubljana, Zaloška cesta 2, 1000 Ljubljana, Slovenia
| | - Katarina Žnidar
- University of Primorska, Faculty of Health Sciences, Polje 42, 6310 Isola, Slovenia
| | - Gregor Serša
- Institute of Oncology Ljubljana, Zaloška cesta 2, 1000 Ljubljana, Slovenia
| | - Maja Čemažar
- Institute of Oncology Ljubljana, Zaloška cesta 2, 1000 Ljubljana, Slovenia; University of Primorska, Faculty of Health Sciences, Polje 42, 6310 Isola, Slovenia
| | - Nataša Tozon
- University of Ljubljana, Veterinary Faculty, Small Animal Clinic, Cesta v Mestni log 47, 1000 Ljubljana, Slovenia.
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33
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Fan TM, Selting KA. Exploring the Potential Utility of Pet Dogs With Cancer for Studying Radiation-Induced Immunogenic Cell Death Strategies. Front Oncol 2019; 8:680. [PMID: 30697532 PMCID: PMC6340932 DOI: 10.3389/fonc.2018.00680] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Accepted: 12/27/2018] [Indexed: 01/21/2023] Open
Abstract
Radiotherapy serves as a foundational pillar for the therapeutic management of diverse solid tumors through the generation of lethal DNA damage and induction of cell death. While the direct cytotoxic effects of radiation therapy remain a cornerstone for cancer management, in the era of immunooncology there is renewed and focused interest in exploiting the indirect bystander activities of radiation, termed abscopal effects. In radioimmunobiologic terms, abscopal effects describe the radiotherapy-induced regression of cancerous lesions distant from the primary site of radiation delivery and rely upon the induction of immunogenic cell death and consequent systemic anticancer immune activation. Despite the promise of radiation therapy for awaking potent anticancer immune responses, the purposeful harnessing of abscopal effects with radiotherapy remain clinically elusive. In part, failure to fully leverage and clinically implement the promise of radiation-induced abscopal effects stems from limitations associated with existing conventional tumor models which inadequately recapitulate the complexity of malignant transformation and the dynamic nature of tumor immune surveillance. To supplement this existing gap in modeling systems, pet dogs diagnosed with solid tumors including melanoma and osteosarcoma, which are both metastatic and immunogenic in nature, could potentially serve as unique resources for exploring the fundamental underpinnings required for maximizing radiation-induced abscopal effects. Given the spontaneous course of cancer development in the context of operative immune mechanisms, pet dogs treated with radiotherapy for metastatic solid tumors might be leveraged as valuable model systems for realizing the science and best clinical practices necessary to generate potent abscopal effects with anti-metastatic immune activities.
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Affiliation(s)
- Timothy M Fan
- Comparative Oncology Research Laboratory, Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois at Urbana-Champaign Urbana, IL, United States
| | - Kimberly A Selting
- Comparative Oncology Research Laboratory, Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois at Urbana-Champaign Urbana, IL, United States
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Segaoula Z, Primot A, Lepretre F, Hedan B, Bouchaert E, Minier K, Marescaux L, Serres F, Galiègue-Zouitina S, André C, Quesnel B, Thuru X, Tierny D. Isolation and characterization of two canine melanoma cell lines: new models for comparative oncology. BMC Cancer 2018; 18:1219. [PMID: 30514258 PMCID: PMC6280433 DOI: 10.1186/s12885-018-5114-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Accepted: 11/20/2018] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Metastatic melanoma is one of the most aggressive forms of cancer in humans. Among its types, mucosal melanomas represent one of the most highly metastatic and aggressive forms, with a very poor prognosis. Because they are rare in Caucasian individuals, unlike cutaneous melanomas, there has been fewer epidemiological, clinical and genetic evaluation of mucosal melanomas. Moreover, the lack of predictive models fully reproducing the pathogenesis and molecular alterations of mucosal melanoma makes its treatment challenging. Interestingly, dogs are frequently affected by melanomas of the oral cavity that are characterized, as their human counterparts, by focal infiltration, recurrence, and metastasis to regional lymph nodes, lungs and other organs. In dogs, some particular breeds are at high risk, suggesting a specific genetic background and strong genetic drivers. Altogether, the striking homologies in clinical presentation, histopathological features, and overall biology between human and canine mucosal melanomas make dogs invaluable natural models with which to investigate tumor development, including tumor ætiology, and develop tailored treatments. METHODS We developed and characterized two canine oral melanoma cell lines from tumors isolated from dog patients with distinct clinical profiles; with and without lung metastases. The cells were characterized using immunohistochemistry, pharmacology and genetic studies. RESULTS We have developed and immunohistochemically, genetically, and pharmacologically characterized. Two cell lines (Ocr_OCMM1X & Ocr_OCMM2X) were produced through mouse xenografts originating from two clinically contrasting melanomas of the oral cavity. Their exhaustive characterization showed two distinct biological and genetic profiles that are potentially linked to the stage of malignancy at the time of diagnosis and sample collection of each melanoma case. These cell lines thus constitute relevant tools with which to perform genetic and drug screening analyses for a better understanding of mucosal melanomas in dogs and humans. CONCLUSIONS The aim of this study was to establish and characterize xenograft-derived canine melanoma cell lines with different morphologies, genetic features and pharmacological sensitivities that constitute good predictive models for comparative oncology. These cell lines are relevant tools to advance the use of canine mucosal melanomas as natural models for the benefit of both veterinary and human medicine.
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Affiliation(s)
- Zacharie Segaoula
- University of Lille, Inserm, CHU Lille, UMR-S 1172 - JPArc - Jean-Pierre AUBERT Research Centre of Neuroscience and Cancer, F-59000 Lille, France
- OCR (Oncovet Clinical Research), SIRIC ONCOLille, Parc Eurasante, Rue du Dr Alexandre Yersin, F-59120 Loos, France
| | - Aline Primot
- CNRS-University of Rennes 1, UMR 6290, Institute of Genetique and Development of Rennes, Faculty of Medicine, SFR Biosit, Rennes, France
| | | | - Benoit Hedan
- CNRS-University of Rennes 1, UMR 6290, Institute of Genetique and Development of Rennes, Faculty of Medicine, SFR Biosit, Rennes, France
| | - Emmanuel Bouchaert
- OCR (Oncovet Clinical Research), SIRIC ONCOLille, Parc Eurasante, Rue du Dr Alexandre Yersin, F-59120 Loos, France
| | - Kevin Minier
- Oncovet Cancer Centre, Avenue Paul Langevin, 59650 Villeneuve d’Ascq, France
| | - Laurent Marescaux
- Oncovet Cancer Centre, Avenue Paul Langevin, 59650 Villeneuve d’Ascq, France
| | - François Serres
- OCR (Oncovet Clinical Research), SIRIC ONCOLille, Parc Eurasante, Rue du Dr Alexandre Yersin, F-59120 Loos, France
- Oncovet Cancer Centre, Avenue Paul Langevin, 59650 Villeneuve d’Ascq, France
| | - Sylvie Galiègue-Zouitina
- University of Lille, Inserm, CHU Lille, UMR-S 1172 - JPArc - Jean-Pierre AUBERT Research Centre of Neuroscience and Cancer, F-59000 Lille, France
| | - Catherine André
- CNRS-University of Rennes 1, UMR 6290, Institute of Genetique and Development of Rennes, Faculty of Medicine, SFR Biosit, Rennes, France
| | - Bruno Quesnel
- University of Lille, Inserm, CHU Lille, UMR-S 1172 - JPArc - Jean-Pierre AUBERT Research Centre of Neuroscience and Cancer, F-59000 Lille, France
- CNRS-University of Rennes 1, UMR 6290, Institute of Genetique and Development of Rennes, Faculty of Medicine, SFR Biosit, Rennes, France
| | - Xavier Thuru
- University of Lille, Inserm, CHU Lille, UMR-S 1172 - JPArc - Jean-Pierre AUBERT Research Centre of Neuroscience and Cancer, F-59000 Lille, France
| | - Dominique Tierny
- OCR (Oncovet Clinical Research), SIRIC ONCOLille, Parc Eurasante, Rue du Dr Alexandre Yersin, F-59120 Loos, France
- Oncovet Cancer Centre, Avenue Paul Langevin, 59650 Villeneuve d’Ascq, France
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Miller KB, Lejeune A, Regan R, Szivek A, Kow K. Suspected Carboplatin Extravasation Reactions in Seven Dogs. J Am Anim Hosp Assoc 2018; 54:360-367. [PMID: 30272477 DOI: 10.5326/jaaha-ms-6773] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Carboplatin is a platinum chemotherapeutic agent commonly used in veterinary oncology that is currently classified as an irritant to local tissues when extravasated. To the authors' knowledge, there are no reports of vesicant injuries associated with carboplatin administration reported in the veterinary literature. In this case series, seven dogs are described to have experienced injuries following a suspected carboplatin extravasation resembling vesicant injuries a median of 7 days after carboplatin administration (range 4-15 days). Wounds healed with a variety of treatments, including medical management and/or surgical debridement, a median of 25.5 days (range 7-49 days) after observation of the suspected extravasation injury. There were no obvious similarities involving carboplatin administration among patients to explain why these reactions occurred. Extravasation injury should be considered a possible local complication associated with carboplatin chemotherapy.
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Affiliation(s)
- Kristina Bowles Miller
- From the Oncology Service, Dogwood Veterinary Emergency and Specialty Care, Richmond, Virginia (K.B.M.); College of Veterinary Medicine, University of Florida, Gainesville, Florida (A.L., A.S.); SAGE Centers for Veterinary Specialty and Emergency Care, Campbell, California (R.R.); and IVG (InTown Veterinary Group by Ethos), Portsmouth, New Hampshire (K.K.)
| | - Amandine Lejeune
- From the Oncology Service, Dogwood Veterinary Emergency and Specialty Care, Richmond, Virginia (K.B.M.); College of Veterinary Medicine, University of Florida, Gainesville, Florida (A.L., A.S.); SAGE Centers for Veterinary Specialty and Emergency Care, Campbell, California (R.R.); and IVG (InTown Veterinary Group by Ethos), Portsmouth, New Hampshire (K.K.)
| | - Rebecca Regan
- From the Oncology Service, Dogwood Veterinary Emergency and Specialty Care, Richmond, Virginia (K.B.M.); College of Veterinary Medicine, University of Florida, Gainesville, Florida (A.L., A.S.); SAGE Centers for Veterinary Specialty and Emergency Care, Campbell, California (R.R.); and IVG (InTown Veterinary Group by Ethos), Portsmouth, New Hampshire (K.K.)
| | - Anna Szivek
- From the Oncology Service, Dogwood Veterinary Emergency and Specialty Care, Richmond, Virginia (K.B.M.); College of Veterinary Medicine, University of Florida, Gainesville, Florida (A.L., A.S.); SAGE Centers for Veterinary Specialty and Emergency Care, Campbell, California (R.R.); and IVG (InTown Veterinary Group by Ethos), Portsmouth, New Hampshire (K.K.)
| | - Kevin Kow
- From the Oncology Service, Dogwood Veterinary Emergency and Specialty Care, Richmond, Virginia (K.B.M.); College of Veterinary Medicine, University of Florida, Gainesville, Florida (A.L., A.S.); SAGE Centers for Veterinary Specialty and Emergency Care, Campbell, California (R.R.); and IVG (InTown Veterinary Group by Ethos), Portsmouth, New Hampshire (K.K.)
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Perez Lopez P, Rasotto R, Caine A, Cherubini GB. Malignant melanoma with central nervous system involvement in a dog treated with surgery, radiotherapy and chemotherapy. VETERINARY RECORD CASE REPORTS 2018. [DOI: 10.1136/vetreccr-2017-000570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- Pablo Perez Lopez
- Roberta Rasotto Diagnostic PathologyDick White ReferralsCambridgeshireUK
| | | | - Abby Caine
- Diagnostic ImagingDick White ReferralsCambridgeshireUK
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Wingo K. Histopathologic Diagnoses From Biopsies of the Oral Cavity in 403 Dogs and 73 Cats. J Vet Dent 2018; 35:7-17. [DOI: 10.1177/0898756418759760] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
This retrospective study documents the prevalence of various histopathological diagnoses within a practice specializing in veterinary dentistry and oral surgery. Histopathology results obtained from biopsies of oral lesions from 403 dogs and 73 cats were sorted and categorized. Lesions of inflammatory origin represented the most common histopathology result in cats (n = 37; 51%), followed by squamous cell carcinoma (n = 27; 37%). The most common histopathological diagnoses in dogs were malignant neoplasms (n = 151; 37%), followed by tumors of odontogenic origin (n = 138, 34%) and lesions of inflammatory origin (n = 114; 28%). The results of this study are representative of a private referral dentistry practice and are compared to other studies that assessed common oral neoplasia diagnoses in dogs and cats. Treatment options and prognoses of the most common canine and feline neoplasms are discussed.
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Affiliation(s)
- Kipp Wingo
- Arizona Veterinary Dental Specialists, Phoenix, AZ, USA
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Hernandez B, Adissu HA, Wei BR, Michael HT, Merlino G, Simpson RM. Naturally Occurring Canine Melanoma as a Predictive Comparative Oncology Model for Human Mucosal and Other Triple Wild-Type Melanomas. Int J Mol Sci 2018; 19:E394. [PMID: 29385676 PMCID: PMC5855616 DOI: 10.3390/ijms19020394] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2017] [Revised: 01/19/2018] [Accepted: 01/22/2018] [Indexed: 02/07/2023] Open
Abstract
Melanoma remains mostly an untreatable fatal disease despite advances in decoding cancer genomics and developing new therapeutic modalities. Progress in patient care would benefit from additional predictive models germane for human disease mechanisms, tumor heterogeneity, and therapeutic responses. Toward this aim, this review documents comparative aspects of human and naturally occurring canine melanomas. Clinical presentation, pathology, therapies, and genetic alterations are highlighted in the context of current basic and translational research in comparative oncology. Somewhat distinct from sun exposure-related human cutaneous melanomas, there is growing evidence that a variety of gene copy number alterations and protein structure/function mutations play roles in canine melanomas, in circumstances more analogous to human mucosal melanomas and to some extent other melanomas with murine sarcoma viral oncogene homolog B (BRAF), Neuroblastoma RAS Viral (V-Ras) Oncogene Homolog (NRAS), and neurofibromin 1 tumor suppressor NF1 triple wild-type genotype. Gaps in canine genome annotation, as well as an insufficient number and depth of sequences covered, remain considerable barriers to progress and should be collectively addressed. Preclinical approaches can be designed to include canine clinical trials addressing immune modulation as well as combined-targeted inhibition of Rat Sarcoma Superfamily/Mitogen-activated protein kinase (RAS/MAPK) and/or Phosphatidylinositol-3-Kinase/Protein Kinase B/Mammalian target of rapamycin (PI3K/AKT/mTOR) signal transduction, pathways frequently activated in both human and canine melanomas. Future investment should be aimed towards improving understanding of canine melanoma as a predictive preclinical surrogate for human melanoma and for mutually benefiting these uniquely co-dependent species.
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Affiliation(s)
- Belen Hernandez
- Laboratory of Cancer Biology and Genetics, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892, USA.
- Medical Research Scholars Program, Office of Clinical Research Training and Medical Education, Clinical Center, National Institutes of Health, Bethesda, MD 20892, USA.
| | - Hibret A Adissu
- Laboratory of Cancer Biology and Genetics, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892, USA.
| | - Bih-Rong Wei
- Laboratory of Cancer Biology and Genetics, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892, USA.
- Leidos Biomedical Research, Inc., Frederick, MD 21704, USA.
| | - Helen T Michael
- Laboratory of Cancer Biology and Genetics, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892, USA.
- NIH Comparative Biomedical Scientist Training Program, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892, USA.
| | - Glenn Merlino
- Laboratory of Cancer Biology and Genetics, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892, USA.
| | - R Mark Simpson
- Laboratory of Cancer Biology and Genetics, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892, USA.
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von Bodungen U, Ruess K, Reif M, Biegel U. [Kombinierte Anwendung von Strahlentherapie und adjuvanter Therapie mit einem Mistelextrakt (Viscum album L.) zur Behandlung des oralen malignen Melanoms beim Hund: Eine retrospektive Studie]. Complement Med Res 2017; 24:358-363. [PMID: 29241194 DOI: 10.1159/000485743] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Hintergrund: Orale maligne Melanome (OMM) des Hundes zeichnen sich durch schnelles Wachstum, lokale Invasion und hohe Metastasierungsraten aus. Extrakte auf Basis von Viscum album L. (VAE) werden zunehmend in der Krebstherapie sowohl in der Human- als auch in der Veterinärmedizin eingesetzt. Ziel unserer Studie war es zu untersuchen, inwieweit die adjuvante Therapie mit VAE eine therapeutische Option zur Behandlung von OMM ist. Besonderes Augenmerk galt dabei der Überlebenszeit und möglichen Nebenwirkungen. Tiere und Methoden: 26 Hunde mit OMM, die in einem der größten veterinäronkologischen Zentren der Schweiz allesamt eine Strahlentherapie erhielten (teilweise nach operativer Tumorresektion) wurden in die retrospektive Studie eingeschlossen: 18 Hunde wurden mit VAE behandelt (1 ml VAE (Iscador®) in ansteigenden Konzentrationen von 0,1 bis 20 mg/ml subkutan 3-mal pro Woche (VAE-Gruppe), 8 erhielten keine adjuvante Behandlung (Vergleichsgruppe). Wir verglichen die Größenentwicklung der OMM sowie die Überlebenszeit. Ergebnisse: Patienten mit Bestrahlung und adjuvanter VAE-Therapie zeigten mit 236 Tagen eine signifikant längere mediane Überlebenszeit im Vergleich zu Patienten mit Bestrahlung, aber ohne adjuvante VAE-Therapie (49 Tage; Log-Rank-Test: p = 0,0047). Die VAE-Therapie verlängerte die Überlebenszeit um mehr als zwei Drittel (Hazard Ratio (HR) = 0,30, 95%-Konfidenzintervall (KI) 0,11-0,86; p = 0,024), während ein höheres Tumorstadium gemäß UICC (Union internationale contre le cancer) einen statistischen Trend zur Verdopplung des Sterberisikos zeigte (UICC-Stadium III/IV vs. I/II: HR = 2,12, 95%-KI 0,88-5,12; p = 0,095). Zwei Patienten zeigten milde Nebenwirkungen während der VAE-Behandlung. Einer der beiden zeigte 1 Tag lang ein selbstlimitiertes Fieber, bei dem anderen Patienten reduzierten wir die Dosis von einem konzentrierteren zu einem weniger konzentrierten VAE (Serie 0) aufgrund von Müdigkeit, die daraufhin verschwand. Schlussfolgerungen: VAE ist eine sichere, nebenwirkungsarme Behandlung und scheint sich positiv auf die Überlebenszeit von Hunden mit OMM auszuwirken. Somit ist dieser therapeutische Ansatz es wert, vermehrt bei der adjuvant zur Strahlentherapie eingesetzten Behandlung des OMM in Betracht gezogen zu werden. Die verglichenen Gruppen waren jedoch klein, divers und nicht konsistent hinsichtlich aller prognostischen Parameter. Eine prospektive Studie mit einer größeren Studienpopulation wäre daher von Interesse.
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Wouda RM, Hocker SE, Higginbotham ML. Safety evaluation of combination carboplatin and toceranib phosphate (Palladia) in tumour-bearing dogs: A phase I dose finding study. Vet Comp Oncol 2017; 16:E52-E60. [PMID: 28799187 DOI: 10.1111/vco.12332] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2017] [Revised: 05/03/2017] [Accepted: 05/12/2017] [Indexed: 01/06/2023]
Abstract
Combining conventional cytotoxic maximum tolerated dose (MTD) chemotherapy with low-dose metronomic and/or anti-angiogenic agents is a exciting area of oncologic research. The objective of this study was to establish the MTD, safety and adverse event (AE) profile of 1 such drug combination. This prospective phase I dose-finding clinical trial assumed an open-label 3 + 3 cohort design. Client-owned dogs with 1 or more cytologically and/or histologically confirmed and macroscopically measurable, naive or recurrent, malignant tumours, were enrolled. No preference for tumour histology, grade or stage was expressed. Toceranib was administered at a dose of 2.75 mg kg-1 by mouth (PO) every other day (EOD), and carboplatin administered intravenously (IV) every 21 days at a starting dose of 200 mg m-2 . A total of 25% dose escalation was proposed for carboplatin, to a maximum of 300 mg m-2 . AEs were graded according to the Veterinary Cooperative Oncology Group's common terminology criteria for AEs (VCOG-CTCAE). Grade 3 haematologic or gastrointestinal AEs were nominated dose-limiting. Response to therapy was evaluated according to the VCOG's revised RECIST criteria. Eleven dogs were enrolled. Tumour histologies included sinonasal carcinoma, osteosarcoma, thyroid carcinoma, melanoma and apocrine gland anal sac adenocarcinoma. MTDs of carboplatin and toceranib were identified as 200 mg m-2 IV every 21 days and approximately 2.75 mg kg-1 PO EOD, respectively. The dose-limiting toxicity was neutropenia. Two dogs experienced a partial response, and 6 maintained stable disease. Combination carboplatin and toceranib chemotherapy was well-tolerated. Clinical benefit was observed in most cases. This protocol warrants further investigation in phase II/III trials.
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Affiliation(s)
- R M Wouda
- Department of Clinical Sciences, Kansas State University, College of Veterinary Medicine, Manhattan, Kansas
| | - S E Hocker
- Department of Clinical Sciences, Kansas State University, College of Veterinary Medicine, Manhattan, Kansas
| | - M L Higginbotham
- Department of Clinical Sciences, Kansas State University, College of Veterinary Medicine, Manhattan, Kansas
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Verganti S, Berlato D, Blackwood L, Amores-Fuster I, Polton GA, Elders R, Doyle R, Taylor A, Murphy S. Use of Oncept melanoma vaccine in 69 canine oral malignant melanomas in the UK. J Small Anim Pract 2017; 58:10-16. [PMID: 28094857 DOI: 10.1111/jsap.12613] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Revised: 08/30/2016] [Accepted: 10/10/2016] [Indexed: 12/22/2022]
Abstract
OBJECTIVES Oral malignant melanomas carry a poor-to-guarded prognosis because of their local invasiveness and high metastatic propensity. The Oncept melanoma vaccine is licensed to treat dogs with stage II or III locally-controlled oral malignant melanoma and this retrospective study aimed to assess survival of affected dogs treated with the vaccine in the UK. MATERIAL AND METHODS Medical records of dogs with histopathologically-confirmed oral malignant melanoma that received the vaccine as part of their treatment were evaluated. Survival analyses for potential prognostic factors were performed. RESULTS Sixty-nine dogs were included; 56 dogs, staged I to III, and with previous locoregional therapy, had a median survival time of 455 days (95% CI: 324 to 586 days). Based on Kaplan-Meier survival analysis with associated log-rank testing, no significant prognostic factors were identified for this population. Of the 13 patients with macroscopic disease treated with vaccine alone or in combination therapy, eight showed clinical response. Three patients with stage IV oral malignant melanoma survived 171, 178 and 288 days from diagnosis. CLINICAL SIGNIFICANCE Patients treated with the melanoma vaccine in our study had survival times similar to their counterparts receiving the vaccine in the USA. There were observed responses in patients with macroscopic disease and so the vaccine could be considered as palliative treatment in dogs with stage IV disease.
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Affiliation(s)
- S Verganti
- Animal Health Trust, Kentford, Newmarket CB8 7UU
| | - D Berlato
- Animal Health Trust, Kentford, Newmarket CB8 7UU
| | - L Blackwood
- School of Veterinary Science, University of Liverpool, Liverpool, Merseyside L3 5DA
| | - I Amores-Fuster
- School of Veterinary Science, University of Liverpool, Liverpool, Merseyside L3 5DA
| | - G A Polton
- North Downs Specialist Referrals, Bletchingley, Redhill RH1 4QP
| | - R Elders
- Animal Health Trust, Kentford, Newmarket CB8 7UU
| | - R Doyle
- Davies Veterinary Specialists, Higham Gobion, Hitchin SG5 3HR
| | - A Taylor
- The Royal Veterinary College, Kings Cross, London NW1 0TU
| | - S Murphy
- Animal Health Trust, Kentford, Newmarket CB8 7UU
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Tulipan RJ, Phillips H, Garrett LD, Dirikolu L, Mitchell MA. Elution of platinum from carboplatin-impregnated calcium sulfate hemihydrate beads in vitro. Am J Vet Res 2016; 77:1252-1257. [DOI: 10.2460/ajvr.77.11.1252] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Finotello R, Monné Rodriguez JM, Vilafranca M, Altimira J, Ramirez GA, Haines A, Ressel L. Immunohistochemical expression of MDR1-Pgp 170 in canine cutaneous and oral melanomas: pattern of expression and association with tumour location and phenotype. Vet Comp Oncol 2016; 15:1393-1402. [DOI: 10.1111/vco.12281] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Revised: 09/16/2016] [Accepted: 10/02/2016] [Indexed: 12/21/2022]
Affiliation(s)
- R. Finotello
- Small Animal Teaching Hospital, Institute of Veterinary Sciences; University of Liverpool; Neston UK
| | - J. M. Monné Rodriguez
- Section of Veterinary Pathology, Institute of Veterinary Sciences; University of Liverpool; Neston UK
| | - M. Vilafranca
- Laboratorio de Diagnóstico Histopatológico Histovet; Avda Països Catalans; Barcelona Spain
| | - J. Altimira
- Laboratorio de Diagnóstico Histopatológico Histovet; Avda Països Catalans; Barcelona Spain
| | - G. A. Ramirez
- Laboratorio de Diagnóstico Histopatológico Histovet; Avda Països Catalans; Barcelona Spain
| | - A. Haines
- Institute of Veterinary Sciences; University of Liverpool; Neston UK
| | - L. Ressel
- Section of Veterinary Pathology, Institute of Veterinary Sciences; University of Liverpool; Neston UK
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Tansey Baldwin C, Zwahlen CH, Kirschner S, Nakamura RK. Evaluation of carboplatin sustained-release delivery system in dogs with cancer. Vet Med Sci 2016; 2:147-153. [PMID: 29067189 PMCID: PMC5645872 DOI: 10.1002/vms3.26] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Revised: 10/19/2015] [Accepted: 12/27/2015] [Indexed: 11/26/2022] Open
Abstract
The objective of the study was to assess the carboplatin sustained-release (CSR) as an injectable, biodegradable polymer system designed to uniformly release carboplatin over 30 days at a dose of 350 mg m-2. The study involved seven client-owned dogs with histologically or cytologically confirmed neoplasia that were treated with CSR intramuscularly. Platinum levels were measured at days 0, 7, 14, 21 and 28. Complete blood cell (CBC) counts, body weight, local toxicity and side effects were also evaluated at the time of platinum measurement at days 0, 7, 14, 21 and 28. CSR released carboplatin steadily over 30 days. Neutropenia was noted as Grade 3 in one dog (14%) and Grade 4 in two dogs (29%) at day 14, and Grade 4 in one dog (14%) at day 21. Thrombocytopenia was noted as Grade 2 in four dogs (57%), Grade 3 in one dog (14%) and Grade 4 in one dog (14%) at day 14; Grade 2 in two dogs (29%) and Grade 3 in one dog (14%) at days 21 and 28. Grade 1 lethargy in one dog (14%) and Grade 1 nausea in dog (14%) occurring within 7 days after administration. No obvious local injection site reactions were noted. CSR administered at 350 mg m-2 intramuscularly resulted in a steady release over 30 days. Myelosuppression (Grade 4) was noted in 86% of patients. CSR released the drug slowly and steadily, however additional studies are needed to assess acceptable dosage requirements.
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Affiliation(s)
| | | | | | - Reid K. Nakamura
- Inland Valley Veterinary Specialists and Emergency CenterUplandCaliforniaUSA
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Piras LA, Riccardo F, Iussich S, Maniscalco L, Gattino F, Martano M, Morello E, Lorda Mayayo S, Rolih V, Garavaglia F, De Maria R, Lardone E, Collivignarelli F, Mignacca D, Giacobino D, Ferrone S, Cavallo F, Buracco P. Prolongation of survival of dogs with oral malignant melanoma treated by en bloc surgical resection and adjuvant CSPG4-antigen electrovaccination. Vet Comp Oncol 2016; 15:996-1013. [PMID: 27146852 DOI: 10.1111/vco.12239] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Revised: 03/14/2016] [Accepted: 03/29/2016] [Indexed: 12/19/2022]
Abstract
Reported post-surgery 1-year survival rate for oral canine malignant melanoma (cMM) is around 30%; novel treatments are needed as the role of adjuvant chemotherapy is unclear. This prospective study regards adjuvant electrovaccination with human chondroitin sulfate proteoglycan-4 (hCSPG4)-encoded plasmid in 23 dogs with resected II/III-staged CSPG4-positive oral cMM compared with 19 dogs with resected only II/III-staged CSPG4-positive oral cMM. Vaccination resulted in 6-, 12-, 18- and 24-month survival rate of 95.6, 73.9, 47.8 and 30.4%, respectively [median survival time (MST) 684 days, range 78-1694, 8 of 23 dogs alive] and 6-, 12-, 18- and 24-month disease-free interval (DFI) rate of 82.6, 47.8, 26.1 and 17.4%, respectively (DFI 477 days, range 50-1694). Non-vaccinated dogs showed 6-, 12-, 18- and 24-month survival rate of 63.2, 26.3, 15.8 and 5.3%, respectively (MST 200 days, range 75-1507, 1 of 19 dogs alive) and 6-, 12-, 18- and 24-month DFI rate of 52.6, 26.3, 10.5 and 5.3%, respectively (DFI 180 days, range 38-1250). Overall survival and DFI of vaccinated dogs was longer in those <20 kg. In vaccinated and non-vaccinated dogs local recurrence rate was 34.8 and 42%, respectively while lung metastatic rate was 39 and 79%, respectively.
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Affiliation(s)
- L A Piras
- Department of Veterinary Sciences, University of Torino, Torino, Italy
| | - F Riccardo
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Torino, Torino, Italy
| | - S Iussich
- Department of Veterinary Sciences, University of Torino, Torino, Italy
| | - L Maniscalco
- Department of Veterinary Sciences, University of Torino, Torino, Italy
| | - F Gattino
- Department of Veterinary Sciences, University of Torino, Torino, Italy
| | - M Martano
- Department of Veterinary Sciences, University of Torino, Torino, Italy
| | - E Morello
- Department of Veterinary Sciences, University of Torino, Torino, Italy
| | - S Lorda Mayayo
- Department of Veterinary Sciences, University of Torino, Torino, Italy
| | - V Rolih
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Torino, Torino, Italy
| | - F Garavaglia
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Torino, Torino, Italy
| | - R De Maria
- Department of Veterinary Sciences, University of Torino, Torino, Italy
| | - E Lardone
- Department of Veterinary Sciences, University of Torino, Torino, Italy
| | | | - D Mignacca
- Clinica Veterinaria Roma Sud, Roma, Italy
| | - D Giacobino
- Department of Veterinary Sciences, University of Torino, Torino, Italy
| | - S Ferrone
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - F Cavallo
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Torino, Torino, Italy
| | - P Buracco
- Department of Veterinary Sciences, University of Torino, Torino, Italy
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Nishiya AT, Massoco CO, Felizzola CR, Perlmann E, Batschinski K, Tedardi MV, Garcia JS, Mendonça PP, Teixeira TF, Zaidan Dagli ML. Comparative Aspects of Canine Melanoma. Vet Sci 2016; 3:vetsci3010007. [PMID: 29056717 PMCID: PMC5644618 DOI: 10.3390/vetsci3010007] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2015] [Revised: 01/26/2016] [Accepted: 02/01/2016] [Indexed: 12/12/2022] Open
Abstract
Melanomas are malignant neoplasms originating from melanocytes. They occur in most animal species, but the dog is considered the best animal model for the disease. Melanomas in dogs are most frequently found in the buccal cavity, but the skin, eyes, and digits are other common locations for these neoplasms. The aim of this review is to report etiological, epidemiological, pathological, and molecular aspects of melanomas in dogs. Furthermore, the particular biological behaviors of these tumors in the different body locations are shown. Insights into the therapeutic approaches are described. Surgery, chemotherapy, radiotherapy, immunotherapy, and the outcomes after these treatments are presented. New therapeutic perspectives are also depicted. All efforts are geared toward better characterization and control of malignant melanomas in dogs, for the benefit of these companion animals, and also in an attempt to benefit the treatment of human melanomas.
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Affiliation(s)
- Adriana Tomoko Nishiya
- Department of Pathology, School of Veterinary Medicine and Animal Science, University of São Paulo, Av. Prof. Dr. Orlando Marques de Paiva, 87, CEP 05508-270, São Paulo, Brazil.
| | - Cristina Oliveira Massoco
- Department of Pathology, School of Veterinary Medicine and Animal Science, University of São Paulo, Av. Prof. Dr. Orlando Marques de Paiva, 87, CEP 05508-270, São Paulo, Brazil.
| | - Claudia Ronca Felizzola
- Department of Pathology, School of Veterinary Medicine and Animal Science, University of São Paulo, Av. Prof. Dr. Orlando Marques de Paiva, 87, CEP 05508-270, São Paulo, Brazil.
- Surgical Oncology Rua Antônio Alves Magan, 124, CEP 01251-150, São Paulo, Brazil.
| | - Eduardo Perlmann
- Department of Surgery, School of Veterinary Medicine and Animal Science, University of São Paulo, CEP 05508-270, São Paulo, Brazil.
| | - Karen Batschinski
- Department of Pathology, School of Veterinary Medicine and Animal Science, University of São Paulo, Av. Prof. Dr. Orlando Marques de Paiva, 87, CEP 05508-270, São Paulo, Brazil.
| | - Marcello Vannucci Tedardi
- Department of Pathology, School of Veterinary Medicine and Animal Science, University of São Paulo, Av. Prof. Dr. Orlando Marques de Paiva, 87, CEP 05508-270, São Paulo, Brazil.
| | - Jéssica Soares Garcia
- Department of Pathology, School of Veterinary Medicine and Animal Science, University of São Paulo, Av. Prof. Dr. Orlando Marques de Paiva, 87, CEP 05508-270, São Paulo, Brazil.
| | - Priscila Pedra Mendonça
- Department of Surgery, School of Veterinary Medicine and Animal Science, University of São Paulo, CEP 05508-270, São Paulo, Brazil.
| | - Tarso Felipe Teixeira
- Pathology Veterinary Medicine, FEPI Itajubá University Center, Dr. Antonio Braga Filho Street, 687, Itajubá, 37.501-002 Minas Gerais, Brazil.
| | - Maria Lucia Zaidan Dagli
- Department of Pathology, School of Veterinary Medicine and Animal Science, University of São Paulo, Av. Prof. Dr. Orlando Marques de Paiva, 87, CEP 05508-270, São Paulo, Brazil.
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Treggiari E, Grant JP, North SM. A retrospective review of outcome and survival following surgery and adjuvant xenogeneic DNA vaccination in 32 dogs with oral malignant melanoma. J Vet Med Sci 2016; 78:845-50. [PMID: 26781703 PMCID: PMC4905841 DOI: 10.1292/jvms.15-0510] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
A xenogeneic DNA vaccination has been licensed for use in dogs with locally controlled stage II and III oral malignant melanoma (OMM). At present, there are limited outcome data for dogs with OMM treated with surgery and immunotherapy. The aim of this study is to retrospectively review the outcome and survival of 32 dogs affected by OMM that were treated with a combination of surgery and the xenogeneic DNA vaccination (with the addition of radiotherapy in some cases) and to determine the influence of surgical margins and delay in receiving vaccination. The overall median survival time (MST) was 335 days (95% CI: 301-540 days), and the overall median progression-free survival (PFS) was 160 days (mean 182 days, 95% CI: 132-232 days). Stage, completeness of surgical margins and delay in administration of the vaccine did not appear to statistically influence survival or PFS, although these results may reflect the low statistical power of the study due to small numbers. Further studies are required to assess whether the addition of any adjuvant treatment to surgery, including immunotherapy, is able to significantly prolong survival in cases of canine oral melanoma.
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48
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Cancer immunology and canine malignant melanoma: A comparative review. Vet Immunol Immunopathol 2016; 169:15-26. [DOI: 10.1016/j.vetimm.2015.11.003] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Revised: 08/28/2015] [Accepted: 11/09/2015] [Indexed: 11/20/2022]
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McLean JL, Lobetti RG. Use of the melanoma vaccine in 38 dogs: The South African experience. J S Afr Vet Assoc 2015; 86:1246. [PMID: 26016668 PMCID: PMC6138178 DOI: 10.4102/jsava.v86i1.1246] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Revised: 01/18/2015] [Accepted: 02/11/2015] [Indexed: 01/13/2023] Open
Abstract
The commercially available vaccine Oncept is indicated for the management of dogs with stage II or III oral melanoma after local control has been achieved. Survival times in dogs with both oral and digit melanoma have been shown to be significantly increased following vaccination. This retrospective study was designed to document the investigators' experiences with Oncept vaccine when used as an adjunct therapy for treatment of stage II-IV oral, digit and malignant melanoma of other sites after local control had been achieved in dogs presented to a South African specialist referral veterinary practice. Thirty-eight dogs diagnosed with melanoma (25 oral, 6 digit and 7 infiltrative at various other sites) underwent a combination of surgical excision and Oncept vaccination. At the end of the study period there were 16 live and 22 dead dogs; median survival time of the live dogs was 29 months (range 2-46 months) versus 8 months (range 2-16 months) for those that died from progressive disease. This study showed that by using a combination of surgical excision and vaccination with Oncept survival times in dogs with malignant melanoma of the oral cavity, digit and other sites can be increased significantly.
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Tuohy JL, Selmic LE, Worley DR, Ehrhart NP, Withrow SJ. Outcome following curative-intent surgery for oral melanoma in dogs: 70 cases (1998–2011). J Am Vet Med Assoc 2014; 245:1266-73. [DOI: 10.2460/javma.245.11.1266] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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