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Kim M, Jeong I, Lee G, Park C, Kim Y, Eom K, Kim J. Application of Palliative Hemostatic Radiotherapy in Canine Unresectable Oral Melanoma: A Case Report. Animals (Basel) 2024; 14:1746. [PMID: 38929365 PMCID: PMC11200987 DOI: 10.3390/ani14121746] [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: 04/25/2024] [Revised: 05/29/2024] [Accepted: 06/07/2024] [Indexed: 06/28/2024] Open
Abstract
A 9-year-old castrated male Schnauzer dog, weighing 11.6 kg, presented with a persistent hemorrhagic oral mass. An oral examination revealed a right maxillary oral mass characterized by continuous bleeding, halitosis, and severe pain. A cytological examination led to a provisional diagnosis of malignant melanoma, and, despite the option of aggressive surgery, the owner declined. The blood analysis indicated severe hemorrhagic anemia (hematocrit, 18.2%) requiring a blood transfusion. The patient underwent volumetric modulated arc therapy (VMAT) as part of a palliative radiation protocol, receiving six fractions of 6 Gy weekly for hemostasis and clinical improvement. The hemorrhaging ceased after the second fraction, with a subsequent rise in the hematocrit levels and the resolution of the anemia. Additionally, the intake increased following the second fraction, and effective pain management was achieved in the fourth fraction. Following the last fraction, computed tomography revealed a 20% reduction in the tumor size. This case highlights the potential use of radiotherapy for hemostasis in cases of inoperable hemorrhagic oral melanoma and represents the first report on the application of hemostatic radiotherapy in dogs.
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Affiliation(s)
- Myounghun Kim
- Department of Veterinary Medical Imaging, College of Veterinary Medicine, Konkuk University, Seoul 05029, Republic of Korea; (M.K.)
| | - Inseong Jeong
- Royal Animal Medical Center, Seoul 02140, Republic of Korea
| | - Gijong Lee
- Royal Animal Medical Center, Seoul 02140, Republic of Korea
| | - Cheol Park
- Royal Animal Medical Center, Seoul 02140, Republic of Korea
| | - Youngwhan Kim
- Royal Animal Medical Center, Seoul 02140, Republic of Korea
| | - Kidong Eom
- Department of Veterinary Medical Imaging, College of Veterinary Medicine, Konkuk University, Seoul 05029, Republic of Korea; (M.K.)
| | - Jaehwan Kim
- Department of Veterinary Medical Imaging, College of Veterinary Medicine, Konkuk University, Seoul 05029, Republic of Korea; (M.K.)
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Goldschmidt S, Soltero-Rivera M, Quiroz A, Wong K, Rebhun R, Zwingenberger A, Ren Y, Taylor S, Arzi B. The diagnostic yield of preoperative screening for oral cancer in dogs over 15 years, part 1: locoregional screening. J Am Vet Med Assoc 2023; 261:S14-S23. [PMID: 37863103 PMCID: PMC10956222 DOI: 10.2460/javma.23.05.0299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 08/16/2023] [Indexed: 10/22/2023]
Abstract
OBJECTIVE Determine locoregional diagnostic yield of 4-site screening (head, neck, chest, and abdomen) to diagnose metastatic disease or clinically significant comorbid diseases in dogs with oral cancer. ANIMALS 381 dogs with histologically confirmed oral tumors. METHODS Medical records from 381 dogs with histologically confirmed oral tumors that underwent preoperative screening were retrospectively reviewed. RESULTS Skull and neck CT scan was performed on 348 patients. Bone lysis was present in 74.4% of tumors. Oral squamous cell carcinoma, sarcomas, and T2-T3 (> 2 cm) tumors had a significantly (P < .05) increased incidence of lysis compared to odontogenic and T1 (< 2 cm) tumors, respectively. Minor incidental findings were present in 60.6% of CT scans. Major incidental findings were found in 4.6% of scans. The risk of diagnosing an incidental finding increased by 10% and 20% per year of age for minor and major findings, respectively. Lymph node metastasis was diagnosed with CT or cytology in 7.5% of cases (10.7% of nonodontogenic tumors, 0% of odontogenic tumors). Oral malignant melanoma, oral squamous cell carcinoma, and T3 tumors had the highest prevalence of metastatic disease at the time of staging. The presence of bone lysis was not associated with cervical metastasis. CLINICAL RELEVANCE Major incidental findings were rare (< 5%) but primarily included secondary extraoral tumors. Lymphatic metastasis was diagnosed in 10.7% of nonodontogenic tumors, but cytology was not performed in the majority of cases and often included only a single mandibular node. Therefore, these results likely underestimate the incidence of lymphatic metastasis. Guided lymph node sampling is highly recommended, especially for oral malignant melanoma, squamous cell carcinoma, and T2-T3 tumors.
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Affiliation(s)
- Stephanie Goldschmidt
- Department of Surgical and Radiologic Sciences, University of California School of Veterinary Medicine, Davis, CA 95616, USA
| | - Maria Soltero-Rivera
- Department of Surgical and Radiologic Sciences, University of California School of Veterinary Medicine, Davis, CA 95616, USA
| | - Adrian Quiroz
- University of California College of Agriculture and Environmental Sciences, Davis, CA 95616, USA
| | - Kristen Wong
- University of California College of Agriculture and Environmental Sciences, Davis, CA 95616, USA
| | - Robert Rebhun
- Department of Surgical and Radiologic Sciences, University of California School of Veterinary Medicine, Davis, CA 95616, USA
| | - Allison Zwingenberger
- Department of Surgical and Radiologic Sciences, University of California School of Veterinary Medicine, Davis, CA 95616, USA
| | - Yunyi Ren
- Department of Biostatistics, Epidemiology, and Research Design, Clinical and Translation Science Center, University of California, Davis, CA 95661, USA
| | - Sandra Taylor
- Department of Biostatistics, Epidemiology, and Research Design, Clinical and Translation Science Center, University of California, Davis, CA 95661, USA
| | - Boaz Arzi
- Department of Surgical and Radiologic Sciences, University of California School of Veterinary Medicine, Davis, CA 95616, USA
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SHINADA M, KATO D, TSUBOI M, IKEDA N, AOKI S, IGUCHI T, LI T, KODERA Y, OTA R, KOSEKI S, SHIBAHARA H, TAKAHASHI Y, HASHIMOTO Y, CHAMBERS JK, UCHIDA K, NOGUCHI S, KATO Y, NISHIMURA R, NAKAGAWA T. Podoplanin promotes cell proliferation, survival, and migration of canine non-tonsillar squamous cell carcinoma. J Vet Med Sci 2023; 85:1068-1073. [PMID: 37544715 PMCID: PMC10600541 DOI: 10.1292/jvms.23-0062] [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] [Received: 02/07/2023] [Accepted: 07/26/2023] [Indexed: 08/08/2023] Open
Abstract
Podoplanin (PDPN) is a prognostic factor and is involved in several mechanisms of tumor progression in human squamous cell carcinoma (SCC). Canine non-tonsillar SCC (NTSCC) is a common oral tumor in dogs and has a highly invasive characteristic. In this study, we investigated the function of PDPN in canine NTSCC. In canine NTSCC clinical samples, PDPN overexpression was observed in 80% of dogs with NTSCC, and PDPN expression was related to ki67 expression. In PDPN knocked-out canine NTSCC cells, cell proliferation, cancer stemness, and migration were suppressed. As the mechanism of PDPN-mediated cell proliferation, PDPN knocked-out induced apoptosis and G2/M cell cycle arrest in canine NTSCC cells. These findings suggest that PDPN promotes tumor malignancies and may be a novel biomarker and therapeutic target for canine NTSCC.
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Affiliation(s)
- Masahiro SHINADA
- Laboratory of Veterinary Surgery, Graduate School of
Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Daiki KATO
- Laboratory of Veterinary Surgery, Graduate School of
Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Masaya TSUBOI
- Veterinary Medical Center, The University of Tokyo, Tokyo,
Japan
| | - Namiko IKEDA
- Laboratory of Veterinary Surgery, Graduate School of
Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Susumu AOKI
- Laboratory of Veterinary Surgery, Graduate School of
Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Takaaki IGUCHI
- Laboratory of Veterinary Surgery, Graduate School of
Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Toshio LI
- Laboratory of Veterinary Surgery, Graduate School of
Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Yuka KODERA
- Laboratory of Veterinary Surgery, Graduate School of
Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Ryosuke OTA
- Laboratory of Veterinary Surgery, Graduate School of
Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Shoma KOSEKI
- Laboratory of Veterinary Surgery, Graduate School of
Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Hayato SHIBAHARA
- Laboratory of Veterinary Surgery, Graduate School of
Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Yosuke TAKAHASHI
- Veterinary Medical Center, The University of Tokyo, Tokyo,
Japan
| | - Yuko HASHIMOTO
- Veterinary Medical Center, The University of Tokyo, Tokyo,
Japan
| | - James K CHAMBERS
- Laboratory of Veterinary Pathology, Graduate School of
Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Kazuyuki UCHIDA
- Laboratory of Veterinary Pathology, Graduate School of
Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Shunsuke NOGUCHI
- Laboratory of Veterinary Radiology, Graduate School of
Veterinary Science, Osaka Metropolitan University, Osaka, Japan
| | - Yukinari KATO
- Department of Antibody Drug Development, Tohoku University
Graduate School of Medicine, Miyagi, Japan
- Department of Molecular Pharmacology, Tohoku University
Graduate School of Medicine, Miyagi, Japan
| | - Ryohei NISHIMURA
- Laboratory of Veterinary Surgery, Graduate School of
Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Takayuki NAKAGAWA
- Laboratory of Veterinary Surgery, Graduate School of
Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
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Sylvester SR, Henry JG, Basran PS, McEntee MC. Description and efficacy of a response-based "QUAD" cyclical hypofractionated palliative-intent radiation protocol in dogs with macroscopic solid tumours: 108 cases. Vet Comp Oncol 2023; 21:378-390. [PMID: 37068761 DOI: 10.1111/vco.12896] [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] [Received: 10/21/2022] [Revised: 03/17/2023] [Accepted: 04/06/2023] [Indexed: 04/19/2023]
Abstract
Palliative-intent radiation therapy can alleviate pain and clinical signs in dogs with cancer, but optimal fractionation scheme is unknown. The objective of this retrospective case series is to evaluate clinical benefit, objective response, adverse effects, and outcomes in 108 dogs with macroscopic solid tumours treated with a cyclical "QUAD" hypofractionated palliative-intent radiation therapy protocol. Median QUAD dose was 14 Gy (14-16 Gy). Median total dose was 28 Gy (14-48 Gy). Clinical benefit rate was 93%, with median onset of subjective palliation 21 days after the first QUAD, lasting a median of 134 days. Tumour volumetric objective response was assessed with CT prior to the third QUAD in 36 dogs, with stable disease in 24 dogs (67%) and partial response in 9 dogs (25%). Sinonasal and oral were the most common tumour locations in 32 and 30 dogs, respectively. Median progression-free survival was 153 days (95% CI 114-200). Median overall survival was 212 days (95% CI 152-259). Number of QUAD cycles completed, clinical benefit achieved, anti-inflammatory received, total radiation dose, time to maximum clinical benefit, and response duration were positively associated with progression-free and overall survival. Acute toxicities were observed in 15 dogs (14%) with 3 high-grade (grade 3) toxicities (3%). Low-grade (grade 1 and 2) late skin and ocular toxicities were observed in 31 dogs (29%), predominantly leukotrichia, alopecia, keratoconjunctivitis sicca, and cataracts. This report demonstrates that QUAD radiation is an alternative protocol to be considered for palliation of dogs with inoperable or advanced stage solid tumours.
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Affiliation(s)
- Skylar R Sylvester
- Department of Clinical Sciences, Cornell University College of Veterinary Medicine, Ithaca, New York, USA
| | - Joshua G Henry
- Department of Clinical Sciences, Cornell University College of Veterinary Medicine, Ithaca, New York, USA
| | - Parminder S Basran
- Department of Clinical Sciences, Cornell University College of Veterinary Medicine, Ithaca, New York, USA
| | - Margaret C McEntee
- Department of Clinical Sciences, Cornell University College of Veterinary Medicine, Ithaca, New York, USA
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Boss MK, Ke Y, Bian L, Harrison LG, Lee BI, Prebble A, Martin T, Trageser E, Hall S, Wang DD, Wang S, Chow L, Holwerda B, Raben D, Regan D, Karam SD, Dow S, Young CD, Wang XJ. Therapeutic Intervention Using a Smad7-Based Tat Protein to Treat Radiation-Induced Oral Mucositis. Int J Radiat Oncol Biol Phys 2022; 112:759-770. [PMID: 34610386 PMCID: PMC8810686 DOI: 10.1016/j.ijrobp.2021.09.039] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 09/26/2021] [Accepted: 09/27/2021] [Indexed: 11/24/2022]
Abstract
PURPOSE Recent studies reported therapeutic effects of Smad7 on oral mucositis in mice without compromising radiation therapy-induced cancer cell killing in neighboring oral cancer. This study aims to assess whether a Smad7-based biologic can treat oral mucositis in a clinically relevant setting by establishing an oral mucositis model in dogs and analyzing molecular targets. METHODS AND MATERIALS We created a truncated human Smad7 protein fused with the cell-penetrating Tat tag (Tat-PYC-Smad7). We used intensity modulated radiation therapy to induce oral mucositis in dogs and applied Tat-PYC-Smad7 to the oral mucosa in dose-finding studies after intensity modulated radiation therapy. Clinical outcomes were evaluated. Molecular targets were analyzed in biopsies and serum samples. RESULTS Tat-PYC-Smad7 treatment significantly shortened the duration of grade 3 oral mucositis based on double-blinded Veterinary Radiation Therapy Oncology Group scores and histopathology evaluations. Topically applied Tat-PYC-Smad7 primarily penetrated epithelial cells and was undetectable in serum. NanoString nCounter Canine IO Panel identified that, compared to the vehicle samples, top molecular changes in Tat-PYC-Smad7 treated samples include reductions in inflammation and cell death and increases in cell growth and DNA repair. Consistently, immunostaining shows that Tat-PYC-Smad7 reduced DNA damage and neutrophil infiltration with attenuated TGF-β and NFκB signaling. Furthermore, IL-1β and TNF-α were lower in Tat-PYC-Smad7 treated mucosa and serum samples compared to those in vehicle controls. CONCLUSIONS Topical Tat-PYC-Smad7 application demonstrated therapeutic effects on oral mucositis induced by intensity modulated radiation therapy in dogs. The local effects of Tat-PYC-Smad7 targeted molecules involved in oral mucositis pathogenesis as well as reduced systemic inflammatory cytokines.
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Affiliation(s)
- Mary-Keara Boss
- Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, Colorado.
| | - Yao Ke
- Department of Pathology, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Li Bian
- Department of Pathology, University of Colorado Anschutz Medical Campus, Aurora, Colorado; Allander Biotechnologies, LLC, Aurora, Colorado
| | - Lauren G Harrison
- Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, Colorado
| | - Ber-In Lee
- Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, Colorado
| | - Amber Prebble
- Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, Colorado
| | - Tiffany Martin
- Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, Colorado
| | - Erin Trageser
- Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, Colorado
| | - Spencer Hall
- Department of Pathology, University of Colorado Anschutz Medical Campus, Aurora, Colorado; Allander Biotechnologies, LLC, Aurora, Colorado
| | - Donna D Wang
- Department of Pathology, University of Colorado Anschutz Medical Campus, Aurora, Colorado; Allander Biotechnologies, LLC, Aurora, Colorado
| | - Suyan Wang
- Department of Pathology, University of Colorado Anschutz Medical Campus, Aurora, Colorado; Allander Biotechnologies, LLC, Aurora, Colorado
| | - Lyndah Chow
- Department of Clinical Sciences, Colorado State University, Fort Collins, Colorado
| | | | - David Raben
- Department of Radiation Oncology, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Daniel Regan
- Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, Colorado
| | - Sana D Karam
- Department of Radiation Oncology, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Steven Dow
- Department of Clinical Sciences, Colorado State University, Fort Collins, Colorado
| | - Christian D Young
- Department of Pathology, University of Colorado Anschutz Medical Campus, Aurora, Colorado; Allander Biotechnologies, LLC, Aurora, Colorado.
| | - Xiao-Jing Wang
- Department of Pathology, University of Colorado Anschutz Medical Campus, Aurora, Colorado; Allander Biotechnologies, LLC, Aurora, Colorado.
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