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Mauda-Havakuk M, Hawken NM, Owen JW, Mikhail AS, Starost MF, Karim B, Wakim PG, Franco-Mahecha OL, Lewis AL, Pritchard WF, Karanian JW, Wood BJ. Immune Effects of Cryoablation in Woodchuck Hepatocellular Carcinoma. J Hepatocell Carcinoma 2023; 10:1973-1990. [PMID: 37954494 PMCID: PMC10637190 DOI: 10.2147/jhc.s426442] [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: 07/06/2023] [Accepted: 10/24/2023] [Indexed: 11/14/2023] Open
Abstract
Objectives Local and systemic immune responses evoked by locoregional therapies such as cryoablation are incompletely understood. The aim of this study was to characterize cryoablation-related immune response and the capacity of immune drugs to augment immunity upon cryoablation for the treatment of hepatocellular carcinoma (HCC) using a woodchuck hepatocellular carcinoma model. Materials and Methods Twelve woodchucks chronically infected with woodchuck hepatitis virus and with hepatocellular carcinoma underwent imaging with contrast-enhanced CT. Partial cryoablation of tumors in three woodchucks was performed. Fourteen days after cryoablation, liver tissues were harvested and stained with H&E and TUNEL, and immune infiltrates were quantified. Peripheral blood mononuclear cells (PBMC) were collected from ablated and nonablated woodchucks, labeled with carboxyfluorescein succinimidyl ester (CFSE) and cultured with immune-modulating drugs, including a small PD-L1 antagonist molecule (BMS-202) and three TLR7/8 agonists (DSR 6434, GS-9620, gardiquimod). After incubation, cell replication and immune cell populations were analyzed by flow cytometry. Results Local immune response in tumors was characterized by an increased number of CD3+ T lymphocytes and natural killer cells in the cryolesion margin compared to other tumor regions. T regulatory cells were found in higher numbers in distant tumors within the liver compared to untreated or control tumors. Cryoablation also augmented the systemic immune response as demonstrated by higher numbers of PBMC responses upon immune drug stimulation in the cryoablation group. Conclusions Partial cryoablation augmented immune effects in both treated and remote untreated tumor microenvironments, as well as systemically, in woodchucks with HCC. Characterization of these mechanisms may enhance development of novel drug-device combinations for treatment of HCC.
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Affiliation(s)
- Michal Mauda-Havakuk
- Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, Bethesda, MD, USA
- Interventional Radiology, Tel-Aviv Sourasky Medical Center, Tel-Aviv, Israel
| | - Natalie M Hawken
- Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, Bethesda, MD, USA
| | - Joshua W Owen
- Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, Bethesda, MD, USA
| | - Andrew S Mikhail
- Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, Bethesda, MD, USA
| | - Matthew F Starost
- Division of Veterinary Resources, National Institutes of Health, Bethesda, MD, USA
| | - Baktiar Karim
- National Cancer Institute, National Institutes of Health, Frederick, MD, USA
| | - Paul G Wakim
- Biostatistics and Clinical Epidemiology Service, National Institutes of Health Clinical Center, Bethesda, MD, USA
| | - Olga L Franco-Mahecha
- Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, Bethesda, MD, USA
| | - Andrew L Lewis
- Alchemed Bioscience Consulting Ltd, Stable Cottage, Monkton Lane, Farnham, Surrey, UK
| | - William F Pritchard
- Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, Bethesda, MD, USA
| | - John W Karanian
- Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, Bethesda, MD, USA
| | - Bradford J Wood
- Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Institute of Biomedical Imaging and Bioengineering and National Cancer Institute Center for Cancer Research; National Institutes of Health, Bethesda, MD, USA
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Esparza-Trujillo JA, Pritchard WF, Mauda-Havakuk M, Starost MF, Wakim P, Zeng J, Mikhail AS, Bakhutashvili I, Wood BJ, Karanian JW. Imaging and Pathologic Evaluation of Cryoablation of Woodchuck ( Marmota monax) Hepatocellular Carcinoma. Comp Med 2023; 73:127-133. [PMID: 36914240 PMCID: PMC10162372 DOI: 10.30802/aalas-cm-22-000092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 10/30/2022] [Accepted: 12/10/2022] [Indexed: 03/16/2023]
Abstract
We characterized cryoablation as a mode of clinical intervention in adult woodchucks with hepatocellular carcinoma (HCC). Woodchucks (n = 4) were infected with woodchuck hepatitis virus at birth and developed LI-RADS-5 hypervascular HCC. At 21 mo of age, they underwent ultrasound (US), contrast-enhanced CT (CECT) imaging, and US-guided subtotal cryoablation (IcePearl 2.1 CX, Galil, BTG) of their largest tumor (Mean HCC volume of 49 ± 9 cm³). Cryoablation was performed using two 10-min freeze cycles, each followed by an 8-min thaw cycle. The first woodchuck developed significant hemorrhage after the procedure and was euthanized. In the other 3 woodchucks, the probe track was cauterized and all 3 completed the study. Fourteen days after ablation, CECT was performed, and woodchucks were euthanized. Explanted tumors were sectioned using subject-specific, 3D-printed cutting molds. Initial tumor volume, the size of the cryoablation ice ball, gross pathology and hematoxylin and eosin-stained tissue sections were evaluated. On US, the edges of the solid ice balls were echogenic with dense acoustic shadowing and average dimensions of 3.1 ± 0.5 × 2.1 ± 0.4 cm and cross-sectional area of 4.7 ± 1.0 cm². On day 14 after cryoablation, CECT of the 3 woodchucks showed devascularized hypo-attenuating cryolesions with dimensions of 2.8 ± 0.3 × 2.6 ± 0.4 × 2.93 ± 0.7 cm and a cross sectional area of 5.8 ± 1.2 cm². Histopathologic evaluation showed hemorrhagic necrosis with a central amorphous region of coagulative necrosis surrounded by a rim of karyorrhectic debris. A rim of approximately 2.5 mm of coagulative necrosis and fibrous connective tissue clearly demarcated the cryolesion from adjacent HCC. Partial cryoablation of tumors produced coagulative necrosis with well-defined ablation margins at 14 d. Cauterization appeared to prevent hemorrhage after cryoablation of hypervascular tumors. Our findings indicate that woodchucks with HCC may provide a predictive preclinical model for investigating ablative modalities and developing new combination therapies.
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Affiliation(s)
| | - William F Pritchard
- Center for Interventional Oncology, Radiology & Imaging Sciences, Clinical Center
| | - Michal Mauda-Havakuk
- Center for Interventional Oncology, Radiology & Imaging Sciences, Clinical Center
| | | | - Paul Wakim
- Biostatistics and Clinical Epidemiology Service, Clinical Center, National Institutes of Health, Bethesda, Maryland
| | - Johnathan Zeng
- Center for Interventional Oncology, Radiology & Imaging Sciences, Clinical Center
| | - Andrew S Mikhail
- Center for Interventional Oncology, Radiology & Imaging Sciences, Clinical Center
| | - Ivane Bakhutashvili
- Center for Interventional Oncology, Radiology & Imaging Sciences, Clinical Center
| | - Bradford J Wood
- Center for Interventional Oncology, Radiology & Imaging Sciences, Clinical Center
- Center for Cancer Research, and
| | - John W Karanian
- Center for Interventional Oncology, Radiology & Imaging Sciences, Clinical Center
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Chandra VM, Wilkins LR, Brautigan DL. Animal Models of Hepatocellular Carcinoma for Local-Regional Intraarterial Therapies. Radiol Imaging Cancer 2022; 4:e210098. [PMID: 35838531 PMCID: PMC9358488 DOI: 10.1148/rycan.210098] [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: 09/20/2021] [Revised: 05/10/2022] [Accepted: 05/19/2022] [Indexed: 06/15/2023]
Abstract
Animal models play a crucial role in developing and testing new therapies for hepatocellular carcinoma (HCC), providing preclinical evidence prior to exploring human safety and efficacy outcomes. The interventional radiologist must weigh the advantages and disadvantages of various animal models available when testing a new local-regional therapy. This review highlights the currently available animal models for testing local-regional therapies for HCC and details the importance of considering animal genetics, tumor biology, and molecular mechanisms when ultimately choosing an animal model. Keywords: Animal Studies, Interventional-Vascular, Molecular Imaging-Clinical Translation, Molecular Imaging-Cancer, Chemoembolization, Liver © RSNA, 2022.
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Woodchuck Hepatic Anatomy and Vascular Alterations Due to Hepatocellular Carcinoma with Angiographic Atlas of the Abdomen and Pelvis. J Vasc Interv Radiol 2022; 33:316-323.e4. [PMID: 34800622 PMCID: PMC8885882 DOI: 10.1016/j.jvir.2021.11.005] [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: 07/10/2021] [Revised: 10/09/2021] [Accepted: 11/06/2021] [Indexed: 11/21/2022] Open
Abstract
PURPOSE To characterize the hepatic and abdominal angiographic anatomy of woodchucks and vascular changes associated with hepatocellular carcinoma (HCC). MATERIALS AND METHODS Twenty-nine woodchucks (23 with viral-associated HCC, 6 without) underwent multiphasic computed tomography (CT). Fourteen woodchucks (8 with HCC) also underwent diagnostic angiography. Hepatic arterial diameters were measured on the CT scans. Woodchucks were divided into 3 groups: non-tumor-bearing, largest tumor supplied by the right hepatic artery (RHA), and largest tumor supplied by the left hepatic artery (LHA). Statistical analysis with a repeated measures model was performed to determine the effects of tumor location (right, left), vessel measured (RHA, LHA), and interaction between the 2 on vessel diameter. Lobar arteries supplying HCC were compared with those that did not. RESULTS CT anatomy and normal and variant vascular anatomy were defined. In woodchucks with HCC, LHA and RHA supplying tumors had mean diameters of 2.0 mm ± 0.3 and 1.6 mm ± 0.3 versus 1.5 mm ± 0.3 and 1.1 mm ± 0.2 for non-tumor-supplying arteries (P = .0002 and P < .0001), respectively. Lobar arteries supplying tumors were similarly ectatic. The right lateral lobe artery had the most profound increase in the mean diameter when supplying tumors, measuring 1.7 mm ± 0.1 versus 1.0 mm ± 0.1 in the non-tumor-supplying artery (P < .0001). There were no differences in the diameters of the aorta and celiac, common, and proper hepatic arteries between tumor- and non-tumor-bearing woodchucks. An angiographic atlas of the abdominal vessels was generated. CONCLUSIONS HCC tumoral vasculature in woodchucks was ectatic compared with normal vasculature. This phenomenon recapitulates human HCC and may facilitate investigation of transcatheter and drug delivery therapies in an HCC animal model.
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de Ruiter QMB, Xu S, Li M, Pritchard WF, Starost MF, Filie A, Mikhail AS, Mauda-Havakuk M, Esparza-Trujillo JA, Bakhutashvili I, Heidari P, Mahmood U, Karanian JW, Wood BJ. Electromagnetic Tracking and Optical Molecular Imaging Guidance for Liver Biopsy and Point-of-Care Tissue Assessment in Phantom and Woodchuck Hepatocellular Carcinoma. Cardiovasc Intervent Radiol 2021; 44:1439-1447. [PMID: 34021380 PMCID: PMC8384721 DOI: 10.1007/s00270-021-02853-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 04/16/2021] [Indexed: 10/21/2022]
Abstract
PURPOSE To evaluate an integrated liver biopsy platform that combined CT image fusion, electromagnetic (EM) tracking, and optical molecular imaging (OMI) of indocyanine green (ICG) to target hepatocellular carcinoma (HCC) lesions and a point-of-care (POC) OMI to assess biopsy cores, all based on tumor retention of ICG compared to normal liver, in phantom and animal model. MATERIAL A custom CT image fusion and EM-tracked guidance platform was modified to integrate the measurement of ICG fluorescence intensity signals in targeted liver tissue with an OMI stylet or a POC OMI system. Accuracy was evaluated in phantom and a woodchuck with HCC, 1 day after administration of ICG. Fresh biopsy cores and paraffin-embedded formalin-fixed liver tissue blocks were evaluated with the OMI stylet or POC system to identify ICG fluorescence signal and ICG peak intensity. RESULTS The mean distance between the initial guided needle delivery location and the peak ICG signal was 5.0 ± 4.7 mm in the phantom. There was complete agreement between the reviewers of the POC-acquired ICG images, cytology, and histopathology in differentiating HCC-positive from HCC-negative biopsy cores. The peak ICG fluorescence intensity signal in the ex vivo liver blocks was 39 ± 12 and 281 ± 150 for HCC negative and HCC positive, respectively. CONCLUSION Biopsy guidance with fused CT imaging, EM tracking, and ICG tracking with an OMI stylet to detect HCC is feasible. Immediate assessment of ICG uptake in biopsy cores with the POC OMI system is feasible and correlates with the presence of HCC in the tissue.
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Affiliation(s)
- Quirina M B de Ruiter
- Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Sheng Xu
- Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Ming Li
- Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, Bethesda, MD, 20892, USA
| | - William F Pritchard
- Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Matthew F Starost
- Division of Veterinary Resources, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Armando Filie
- Laboratory of Pathology, Center for Cancer Research, Clinical Center, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Andrew S Mikhail
- Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Michal Mauda-Havakuk
- Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Juan A Esparza-Trujillo
- Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Ivane Bakhutashvili
- Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Pedram Heidari
- Department of Radiology, Harvard Medical School, Massachusetts General Hospital, Charlestown, MA, 02129, USA
| | - Umar Mahmood
- Center for Cancer research, National Institutes of Health, Bethesda, MD, 20892, USA
| | - John W Karanian
- Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Bradford J Wood
- Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, Bethesda, MD, 20892, USA.
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Suresh M, Menne S. Application of the woodchuck animal model for the treatment of hepatitis B virus-induced liver cancer. World J Gastrointest Oncol 2021; 13:509-535. [PMID: 34163570 PMCID: PMC8204361 DOI: 10.4251/wjgo.v13.i6.509] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Revised: 05/02/2021] [Accepted: 05/15/2021] [Indexed: 02/06/2023] Open
Abstract
This review describes woodchucks chronically infected with the woodchuck hepatitis virus (WHV) as an animal model for hepatocarcinogenesis and treatment of primary liver cancer or hepatocellular carcinoma (HCC) induced by the hepatitis B virus (HBV). Since laboratory animal models susceptible to HBV infection are limited, woodchucks experimentally infected with WHV, a hepatitis virus closely related to HBV, are increasingly used to enhance our understanding of virus-host interactions, immune response, and liver disease progression. A correlation of severe liver pathogenesis with high-level viral replication and deficient antiviral immunity has been established, which are present during chronic infection after WHV inoculation of neonatal woodchucks for modeling vertical HBV transmission in humans. HCC in chronic carrier woodchucks develops 17 to 36 mo after neonatal WHV infection and involves liver tumors that are comparable in size, morphology, and molecular gene signature to those of HBV-infected patients. Accordingly, woodchucks with WHV-induced liver tumors have been used for the improvement of imaging and ablation techniques of human HCC. In addition, drug efficacy studies in woodchucks with chronic WHV infection have revealed that prolonged treatment with nucleos(t)ide analogs, alone or in combination with other compounds, minimizes the risk of liver disease progression to HCC. More recently, woodchucks have been utilized in the delineation of mechanisms involved in innate and adaptive immune responses against WHV during acute, self-limited and chronic infections. Therapeutic interventions based on modulating the deficient host antiviral immunity have been explored in woodchucks for inducing functional cure in HBV-infected patients and for reducing or even delaying associated liver disease sequelae, including the onset of HCC. Therefore, woodchucks with chronic WHV infection constitute a well-characterized, fully immunocompetent animal model for HBV-induced liver cancer and for preclinical evaluation of the safety and efficacy of new modalities, which are based on chemo, gene, and immune therapy, for the prevention and treatment of HCC in patients for which current treatment options are dismal.
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Affiliation(s)
- Manasa Suresh
- Department of Microbiology and Immunology, Georgetown University Medical Center, Washington, DC 20057, United States
| | - Stephan Menne
- Department of Microbiology and Immunology, Georgetown University Medical Center, Washington, DC 20057, United States
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7
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Mauda-Havakuk M, Mikhail AS, Starost MF, Jones EC, Karim B, Kleiner DE, Partanen A, Esparza-Trujillo JA, Bakhutashvili I, Wakim PG, Kassin MT, Lewis AL, Karanian JW, Wood BJ, Pritchard WF. Imaging, Pathology, and Immune Correlates in the Woodchuck Hepatic Tumor Model. J Hepatocell Carcinoma 2021; 8:71-83. [PMID: 33728278 PMCID: PMC7955744 DOI: 10.2147/jhc.s287800] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 01/25/2021] [Indexed: 12/30/2022] Open
Abstract
Background Woodchucks chronically infected with woodchuck hepatitis virus (WHV), which resembles human hepatitis B virus, develop spontaneous hepatic tumors and may be an important biological and immunological model for human HCC. Nonetheless, this model requires further validation to fully realize its translational potential. Methods Woodchucks infected at birth with WHV that had developed HCC (n=12) were studied. Computed tomography, ultrasound, and magnetic resonance imaging were performed under anesthesia. LI-RADS scoring and correlative histologic analysis of sectioned tissues were performed. For immune characterization of tumors, CD3 (T cells), CD4 (T helpers), NCAM (Natural killers), FOXP3 (T-regulatory), PDL-1 (inhibitory checkpoint protein), and the human hepatocellular carcinoma (HCC) biomarker alpha-fetoprotein (AFP) immunohistochemical stains were performed. Results Forty tumors were identified on imaging of which 29 were confirmed to be HCC with 26 categorized as LR-4 or 5. The remainder of the tumors had benign histology including basophilic foci, adenoma, and lipidosis as well as pre-malignant dysplastic foci. LR-4 and LR-5 lesions showed high sensitivity (90%) and specificity (100%) for malignant and pre-malignant tumors. Natural killers count was found to be 2–5 times lower in tumors relative to normal parenchyma while other immune cells were located in the periphery of tumors. Tumors expressed AFP and did not express PD-L1. Conclusion Woodchucks chronically infected with WHV developed diverse hepatic tumor types with diagnostic imaging, pathology, and immune patterns comparable to that in humans. This unique animal model may provide a valuable tool for translation and validation of novel image-guided and immune-therapeutic investigations.
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Affiliation(s)
- Michal Mauda-Havakuk
- Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, Bethesda, MD, USA
| | - Andrew S Mikhail
- Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, Bethesda, MD, USA
| | - Matthew F Starost
- Division of Veterinary Resources, National Institutes of Health, Bethesda, MD, USA
| | - Elizabeth C Jones
- Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, Bethesda, MD, USA
| | - Baktiar Karim
- National Cancer Institute, National Institutes of Health, Frederick, MD, USA
| | - David E Kleiner
- Center for Cancer Research, Clinical Center, National Cancer Institute, Bethesda, MD, USA
| | - Ari Partanen
- Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, Bethesda, MD, USA
| | - Juan A Esparza-Trujillo
- Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, Bethesda, MD, USA
| | - Ivane Bakhutashvili
- Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, Bethesda, MD, USA
| | - Paul G Wakim
- Biostatistics and Clinical Epidemiology Service, National Institutes of Health Clinical Center, Bethesda, MD, USA
| | - Michael T Kassin
- Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, Bethesda, MD, USA
| | - Andrew L Lewis
- Biocompatibles UK Ltd (a BTG International Group Company), Camberley, UK
| | - John W Karanian
- Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, Bethesda, MD, USA
| | - Bradford J Wood
- Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Institute of Biomedical Imaging and Bioengineering and National Cancer Institute Center for Cancer Research, National Institutes of Health, Bethesda, MD, USA
| | - William F Pritchard
- Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, Bethesda, MD, USA
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8
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Pritchard WF, Woods DL, Esparza-Trujillo JA, Starost MF, Mauda-Havakuk M, Mikhail AS, Bakhutashvili I, Leonard S, Jones EC, Krishnasamy V, Karanian JW, Wood BJ. Transarterial Chemoembolization in a Woodchuck Model of Hepatocellular Carcinoma. J Vasc Interv Radiol 2020; 31:812-819.e1. [PMID: 32107125 DOI: 10.1016/j.jvir.2019.08.031] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Revised: 08/15/2019] [Accepted: 08/31/2019] [Indexed: 02/06/2023] Open
Abstract
PURPOSE To assess the feasibility of transarterial chemoembolization with drug-eluting embolic (DEE) microspheres in a woodchuck model of hepatocellular carcinoma (HCC). MATERIALS AND METHODS Nine woodchucks were studied: 4 normal animals and 5 animals infected with woodchuck hepatitis virus in which HCC had developed. Three animals with HCC underwent multidetector CT. A 3-F sheath was introduced into the femoral artery, and the hepatic arteries were selectively catheterized with 2.0-2.4-F microcatheters. Normal animals underwent diagnostic angiography and bland embolization. Animals with HCC underwent DEE transarterial chemoembolization with 70-150-μm radiopaque microspheres loaded with 37.5 mg doxorubicin per milliliter. Cone-beam CT and multidetector CT were performed. Following euthanasia, explanted livers underwent micro-CT, histopathologic examination, and fluorescence imaging of doxorubicin. RESULTS The tumors were hypervascular and supplied by large-caliber tortuous vessels, with arteriovenous shunts present in 2 animals. There was heterogeneous enhancement on multidetector CT with areas of necrosis. Six tumors were identified. The most common location was the right medial lobe (n = 3). Mean tumor volume was 30.7 cm3 ± 12.3. DEE chemoembolization of tumors was achieved. Excluding the 2 animals with arteriovenous shunts, the mean volume of DEE microspheres injected was 0.49 mL ± 0.17. Fluorescence imaging showed diffusion of doxorubicin from the DEE microspheres into the tumor. CONCLUSIONS Woodchuck HCC shares imaging appearances and biologic characteristics with human HCC. Selective catheterization and DEE chemoembolization may similarly be performed. Woodchucks may be used to model interventional therapies and possibly characterize radiologic-pathologic correlations.
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Affiliation(s)
- William F Pritchard
- Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, 10 Center Dr., Room 3N320B, MSC 1182, Bethesda, MD 20892.
| | - David L Woods
- Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, 10 Center Dr., Room 3N320B, MSC 1182, Bethesda, MD 20892
| | - Juan A Esparza-Trujillo
- Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, 10 Center Dr., Room 3N320B, MSC 1182, Bethesda, MD 20892
| | - Matthew F Starost
- Division of Veterinary Resources, National Institutes of Health, 10 Center Dr., Room 3N320B, MSC 1182, Bethesda, MD 20892
| | - Michal Mauda-Havakuk
- Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, 10 Center Dr., Room 3N320B, MSC 1182, Bethesda, MD 20892
| | - Andrew S Mikhail
- Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, 10 Center Dr., Room 3N320B, MSC 1182, Bethesda, MD 20892
| | - Ivane Bakhutashvili
- Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, 10 Center Dr., Room 3N320B, MSC 1182, Bethesda, MD 20892
| | - Shelby Leonard
- Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, 10 Center Dr., Room 3N320B, MSC 1182, Bethesda, MD 20892
| | - Elizabeth C Jones
- Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, 10 Center Dr., Room 3N320B, MSC 1182, Bethesda, MD 20892
| | - Venkatesh Krishnasamy
- Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, 10 Center Dr., Room 3N320B, MSC 1182, Bethesda, MD 20892
| | - John W Karanian
- Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, 10 Center Dr., Room 3N320B, MSC 1182, Bethesda, MD 20892
| | - Bradford J Wood
- Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, 10 Center Dr., Room 3N320B, MSC 1182, Bethesda, MD 20892; National Institute of Biomedical Imaging and Bioengineering and National Cancer Institute Center for Cancer Research, National Institutes of Health, 10 Center Dr., Room 3N320B, MSC 1182, Bethesda, MD 20892
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9
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Obeid M, Khabbaz RC, Garcia KD, Schachtschneider KM, Gaba RC. Translational Animal Models for Liver Cancer. ACTA ACUST UNITED AC 2018. [DOI: 10.25259/ajir-11-2017] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Animal models have become increasingly important in the study of hepatocellular carcinoma (HCC), as they serve as a critical bridge between laboratory-based discoveries and human clinical trials. Developing an ideal animal model for translational use is challenging, as the perfect model must be able to reproduce human disease genetically, anatomically, physiologically, and pathologically. This brief review provides an overview of the animal models currently available for translational liver cancer research, including rodent, rabbit, non-human primate, and pig models, with a focus on their respective benefits and shortcomings. While small animal models offer a solid starting point for investigation, large animal HCC models are becoming increasingly important for translation of preclinical results to clinical practice.
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Affiliation(s)
- Michele Obeid
- Department of Radiology, University of Illinois, 1740 West Taylor Street MC 931, Chicago, IL, 60612, United States
| | - Ramzy C. Khabbaz
- Department of Radiology, University of Illinois, 1740 West Taylor Street MC 931, Chicago, IL, 60612, United States
| | - Kelly D. Garcia
- College of Medicine, University of Illinois, 1740 West Taylor Street MC 931, Chicago, IL, 60612, United States
| | - Kyle M. Schachtschneider
- Department of Biological Resources Laboratory, University of Illinois, 1740 West Taylor Street MC 931, Chicago, IL, 60612, United States
| | - Ron C. Gaba
- Department of Radiology, University of Illinois, 1740 West Taylor Street MC 931, Chicago, IL, 60612, United States
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Wilkins LR, Stone JR, Mata J, Hawrylack A, Kubicka E, Brautigan DL. The Use of the Woodchuck as an Animal Model for Evaluation of Transarterial Embolization. J Vasc Interv Radiol 2018; 28:1467-1471. [PMID: 28941521 DOI: 10.1016/j.jvir.2017.04.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Revised: 04/04/2017] [Accepted: 04/05/2017] [Indexed: 01/03/2023] Open
Abstract
There are many shortcomings of current animal models as surrogates of hepatocellular carcinoma that handicap preclinical testing of embolization agents. The present study explores the feasibility of using the woodchuck (Marmota monax) as an animal model for the testing of novel embolization agents. Four woodchucks underwent magnetic resonance imaging, angiography, and left lobar hepatic artery particle embolization. Percutaneous access, arteriography, and lobar embolization were successful in all animals, with angiographic stasis obtained in the target vessel with minimal reflux of embolic material. These results support the feasibility of the woodchuck as an animal model for preclinical testing of embolization agents.
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Affiliation(s)
- Luke R Wilkins
- Department of Radiology and Medical Imaging, University of Virginia Health Systems, Charlottesville, Virginia.
| | - James R Stone
- Department of Radiology and Medical Imaging, University of Virginia Health Systems, Charlottesville, Virginia
| | - Jaime Mata
- Department of Radiology and Medical Imaging, University of Virginia Health Systems, Charlottesville, Virginia
| | - Alisha Hawrylack
- Department of Radiology and Medical Imaging, University of Virginia Health Systems, Charlottesville, Virginia
| | - Ewa Kubicka
- Department of Microbiology, Immunology, and Cancer Biology, University of Virginia, Charlottesville, Virginia
| | - David L Brautigan
- Department of Microbiology, Immunology, and Cancer Biology, University of Virginia, Charlottesville, Virginia
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11
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Schachtschneider KM, Schwind RM, Newson J, Kinachtchouk N, Rizko M, Mendoza-Elias N, Grippo P, Principe DR, Park A, Overgaard NH, Jungersen G, Garcia KD, Maker AV, Rund LA, Ozer H, Gaba RC, Schook LB. The Oncopig Cancer Model: An Innovative Large Animal Translational Oncology Platform. Front Oncol 2017; 7:190. [PMID: 28879168 PMCID: PMC5572387 DOI: 10.3389/fonc.2017.00190] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2017] [Accepted: 08/10/2017] [Indexed: 12/20/2022] Open
Abstract
Despite an improved understanding of cancer molecular biology, immune landscapes, and advancements in cytotoxic, biologic, and immunologic anti-cancer therapeutics, cancer remains a leading cause of death worldwide. More than 8.2 million deaths were attributed to cancer in 2012, and it is anticipated that cancer incidence will continue to rise, with 19.3 million cases expected by 2025. The development and investigation of new diagnostic modalities and innovative therapeutic tools is critical for reducing the global cancer burden. Toward this end, transitional animal models serve a crucial role in bridging the gap between fundamental diagnostic and therapeutic discoveries and human clinical trials. Such animal models offer insights into all aspects of the basic science-clinical translational cancer research continuum (screening, detection, oncogenesis, tumor biology, immunogenicity, therapeutics, and outcomes). To date, however, cancer research progress has been markedly hampered by lack of a genotypically, anatomically, and physiologically relevant large animal model. Without progressive cancer models, discoveries are hindered and cures are improbable. Herein, we describe a transgenic porcine model—the Oncopig Cancer Model (OCM)—as a next-generation large animal platform for the study of hematologic and solid tumor oncology. With mutations in key tumor suppressor and oncogenes, TP53R167H and KRASG12D, the OCM recapitulates transcriptional hallmarks of human disease while also exhibiting clinically relevant histologic and genotypic tumor phenotypes. Moreover, as obesity rates increase across the global population, cancer patients commonly present clinically with multiple comorbid conditions. Due to the effects of these comorbidities on patient management, therapeutic strategies, and clinical outcomes, an ideal animal model should develop cancer on the background of representative comorbid conditions (tumor macro- and microenvironments). As observed in clinical practice, liver cirrhosis frequently precedes development of primary liver cancer or hepatocellular carcinoma. The OCM has the capacity to develop tumors in combination with such relevant comorbidities. Furthermore, studies on the tumor microenvironment demonstrate similarities between OCM and human cancer genomic landscapes. This review highlights the potential of this and other large animal platforms as transitional models to bridge the gap between basic research and clinical practice.
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Affiliation(s)
| | - Regina M Schwind
- Department of Radiology, University of Illinois at Chicago, Chicago, IL, United States
| | | | | | - Mark Rizko
- College of Medicine, University of Illinois at Chicago, Chicago, IL, United States
| | - Nasya Mendoza-Elias
- College of Medicine, University of Illinois at Chicago, Chicago, IL, United States
| | - Paul Grippo
- Department of Medicine, University of Illinois at Chicago, Chicago, IL, United States
| | - Daniel R Principe
- Department of Medicine, University of Illinois at Chicago, Chicago, IL, United States
| | - Alex Park
- College of Medicine, University of Illinois at Chicago, Chicago, IL, United States
| | - Nana H Overgaard
- Division of Immunology and Vaccinology, National Veterinary Institute, Technical University of Denmark, Kongens Lyngby, Denmark
| | - Gregers Jungersen
- Division of Immunology and Vaccinology, National Veterinary Institute, Technical University of Denmark, Kongens Lyngby, Denmark
| | - Kelly D Garcia
- Biologic Resources Laboratory, University of Illinois at Chicago, Chicago, IL, United States
| | - Ajay V Maker
- Department of Surgical Oncology, University of Illinois at Chicago, Chicago, IL, United States
| | - Laurie A Rund
- Department of Animal Sciences, University of Illinois, Urbana, IL, United States
| | - Howard Ozer
- Department of Medicine, University of Illinois at Chicago, Chicago, IL, United States
| | - Ron C Gaba
- Department of Radiology, University of Illinois at Chicago, Chicago, IL, United States
| | - Lawrence B Schook
- Department of Radiology, University of Illinois at Chicago, Chicago, IL, United States.,Department of Animal Sciences, University of Illinois, Urbana, IL, United States
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12
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Qi X, Li G, Liu D, Motamarry A, Huang X, Wolfe AM, Helke KL, Haemmerich D, Staveley-O'Carroll KF, Kimchi ET. Development of a radiofrequency ablation platform in a clinically relevant murine model of hepatocellular cancer. Cancer Biol Ther 2016; 16:1812-9. [PMID: 26537481 DOI: 10.1080/15384047.2015.1095412] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
RFA is used in treatment of patients with hepatocellular cancer (HCC); however, tumor location and size often limit therapeutic efficacy. The absence of a realistic animal model and a radiofrequency ablation (RFA) suitable for small animals presents significant obstacles in developing new strategies. To establish a realistic RFA platform that allows the development of effective RFA-integrated treatment in an orthotopic murine model of HCC, a human cardiac radiofrequency generator was modified for murine use. Parameters were optimized and RFA was then performed in normal murine livers and HCCs. The effects of RFA were monitored by measuring the ablation zone and transaminases. The survival of tumor-bearing mice with and without RFA was monitored, ablated normal liver and HCCs were evaluated macroscopically and histologically. We demonstrated that tissue-mimicking media was able to optimize RFA parameters. Utilizing this information we performed RFA in normal and HCC-bearing mice. RFA was applied to hepatic parenchyma and completely destroyed small tumors and part of large tumors. Localized healing of the ablation and normalization of transaminases occurred within 7 days post RFA. RFA treatment extended the survival of small tumor-bearing mice. They survived at least 5 months longer than the controls; however, mice with larger tumors only had a slight therapeutic effect after RFA. Collectively, we performed RFA in murine HCCs and observed a significant therapeutic effect in small tumor-bearing mice. The quick recovery of tumor-bearing mice receiving RFA mimics observations in human subjects. This platform provides us a unique opportunity to study RFA in HCC treatment.
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Affiliation(s)
- Xiaoqiang Qi
- a Department of Surgery ; Division of Surgical Oncology; Medical University of South Carolina ; Charleston , SC USA.,b Hollings Cancer Center; Medical University of South Carolina ; Charleston , SC USA
| | - Guangfu Li
- a Department of Surgery ; Division of Surgical Oncology; Medical University of South Carolina ; Charleston , SC USA.,b Hollings Cancer Center; Medical University of South Carolina ; Charleston , SC USA
| | - Dai Liu
- a Department of Surgery ; Division of Surgical Oncology; Medical University of South Carolina ; Charleston , SC USA.,b Hollings Cancer Center; Medical University of South Carolina ; Charleston , SC USA
| | - Anjan Motamarry
- d Department of Pathology and Laboratory Medicine; Medical University of South Carolina ; Charleston , SC USA
| | - Xiangwei Huang
- a Department of Surgery ; Division of Surgical Oncology; Medical University of South Carolina ; Charleston , SC USA.,b Hollings Cancer Center; Medical University of South Carolina ; Charleston , SC USA
| | - A Marissa Wolfe
- c Department of Comparative Medicine; Medical University of South Carolina ; Charleston , SC USA
| | - Kristi L Helke
- c Department of Comparative Medicine; Medical University of South Carolina ; Charleston , SC USA.,d Department of Pathology and Laboratory Medicine; Medical University of South Carolina ; Charleston , SC USA
| | - Dieter Haemmerich
- e Department of Pediatrics ; Medical University of South Carolina ; Charleston , SC USA
| | - Kevin F Staveley-O'Carroll
- a Department of Surgery ; Division of Surgical Oncology; Medical University of South Carolina ; Charleston , SC USA.,b Hollings Cancer Center; Medical University of South Carolina ; Charleston , SC USA
| | - Eric T Kimchi
- a Department of Surgery ; Division of Surgical Oncology; Medical University of South Carolina ; Charleston , SC USA.,b Hollings Cancer Center; Medical University of South Carolina ; Charleston , SC USA
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13
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Gade TPF, Hunt SJ, Harrison N, Nadolski GJ, Weber C, Pickup S, Furth EE, Schnall MD, Soulen MC, Celeste Simon M. Segmental Transarterial Embolization in a Translational Rat Model of Hepatocellular Carcinoma. J Vasc Interv Radiol 2015; 26:1229-37. [PMID: 25863596 DOI: 10.1016/j.jvir.2015.02.006] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2014] [Revised: 02/05/2015] [Accepted: 02/09/2015] [Indexed: 12/12/2022] Open
Abstract
PURPOSE To develop a clinically relevant, minimally invasive technique for transarterial embolization in a translational rat model of hepatocellular carcinoma (HCC). MATERIALS AND METHODS Oral diethylnitrosamine was administered to 53 male Wistar rats ad libitum for 12 weeks. Tumor induction was monitored using magnetic resonance imaging. Minimally invasive lobar or segmental transarterial embolization was performed through a left common carotid artery approach. Necropsy was performed to evaluate periprocedural mortality. Histologic analysis of tumors that received embolization was performed to assess percent tumor necrosis. RESULTS Severe cirrhosis and autochthonous HCCs were characterized in a cohort of rats composed of two groups of rats identically treated with diethylnitrosamine with median survival times of 101 days and 105 days (n = 10/group). A second cohort was used to develop minimally invasive transarterial embolization of HCCs (n = 10). In a third cohort, lobar embolization was successfully performed in 9 of 10 rats and demonstrated a high rate of periprocedural mortality (n = 5). Necropsy performed for periprocedural mortality after lobar embolization demonstrated extensive tissue necrosis within the liver (n = 3) and lungs (n = 2), indicating nontarget embolization as the likely cause of mortality. In a fourth cohort of rats, a segmental embolization technique was successfully applied in 10 of 13 rats. Segmental embolization resulted in a reduction in periprocedural mortality (P = .06) relative to selective embolization and a 19% increase in average tumor necrosis (P = .04). CONCLUSIONS Minimally invasive, segmental embolization mimicking the currently applied clinical approach is feasible in a translational rat model of HCC and offers the critical advantage of reduced nontarget embolization relative to lobar embolization.
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Affiliation(s)
- Terence P F Gade
- Penn Image-Guided Interventions Laboratory, University of Pennsylvania, 421 Curie Boulevard, 438 BRB II/III, Philadelphia, PA 19104-6160; Department of Radiology, Perelman School of Medicine at the University of Pennsylvania, 421 Curie Boulevard, 438 BRB II/III, Philadelphia, PA 19104-6160
| | - Stephen J Hunt
- Penn Image-Guided Interventions Laboratory, University of Pennsylvania, 421 Curie Boulevard, 438 BRB II/III, Philadelphia, PA 19104-6160; Department of Radiology, Perelman School of Medicine at the University of Pennsylvania, 421 Curie Boulevard, 438 BRB II/III, Philadelphia, PA 19104-6160
| | - Neil Harrison
- Penn Image-Guided Interventions Laboratory, University of Pennsylvania, 421 Curie Boulevard, 438 BRB II/III, Philadelphia, PA 19104-6160; Perelman School of Medicine at the University of Pennsylvania, 421 Curie Boulevard, 438 BRB II/III, Philadelphia, PA 19104-6160
| | - Gregory J Nadolski
- Penn Image-Guided Interventions Laboratory, University of Pennsylvania, 421 Curie Boulevard, 438 BRB II/III, Philadelphia, PA 19104-6160; Department of Radiology, Perelman School of Medicine at the University of Pennsylvania, 421 Curie Boulevard, 438 BRB II/III, Philadelphia, PA 19104-6160
| | - Charles Weber
- Penn Image-Guided Interventions Laboratory, University of Pennsylvania, 421 Curie Boulevard, 438 BRB II/III, Philadelphia, PA 19104-6160; Department of Radiology, Perelman School of Medicine at the University of Pennsylvania, 421 Curie Boulevard, 438 BRB II/III, Philadelphia, PA 19104-6160
| | - Stephen Pickup
- Department of Radiology, Perelman School of Medicine at the University of Pennsylvania, 421 Curie Boulevard, 438 BRB II/III, Philadelphia, PA 19104-6160
| | - Emma E Furth
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine at the University of Pennsylvania, 421 Curie Boulevard, 438 BRB II/III, Philadelphia, PA 19104-6160
| | - Mitchell D Schnall
- Department of Radiology, Perelman School of Medicine at the University of Pennsylvania, 421 Curie Boulevard, 438 BRB II/III, Philadelphia, PA 19104-6160
| | - Michael C Soulen
- Department of Radiology, Perelman School of Medicine at the University of Pennsylvania, 421 Curie Boulevard, 438 BRB II/III, Philadelphia, PA 19104-6160
| | - M Celeste Simon
- Abramson Family Cancer Research Institute, Perelman School of Medicine at the University of Pennsylvania, 421 Curie Boulevard, 438 BRB II/III, Philadelphia, PA 19104-6160; Howard Hughes Medical Institute, Perelman School of Medicine at the University of Pennsylvania, 421 Curie Boulevard, 438 BRB II/III, Philadelphia, PA 19104-6160.
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14
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Thompson SM, Callstrom MR, Knudsen B, Anderson JL, Butters KA, Grande JP, Roberts LR, Woodrum DA. AS30D model of hepatocellular carcinoma: tumorigenicity and preliminary characterization by imaging, histopathology, and immunohistochemistry. Cardiovasc Intervent Radiol 2012; 36:198-203. [PMID: 22923329 DOI: 10.1007/s00270-012-0466-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2012] [Accepted: 07/29/2012] [Indexed: 12/13/2022]
Abstract
PURPOSE This study was designed to determine the tumorigenicity of the AS30D HCC cell line following orthotopic injection into rat liver and preliminarily characterize the tumor model by both magnetic resonance imaging (MRI) and ultrasound (US) as well as histopathology and immunohistochemistry. MATERIALS AS30D cell line in vitro proliferation was assessed by using MTT assay. Female rats (N = 5) underwent injection of the AS30D cell line into one site in the liver. Rats subsequently underwent MR imaging at days 7 and 14 to assess tumor establishment and volume. One rat underwent US of the liver at day 7. Rats were euthanized at day 7 or 14 and livers were subjected to gross, histopathologic (H&E), and immunohistochemical (CD31) analysis to assess for tumor growth and neovascularization. RESULTS AS30D cell line demonstrated an in vitro doubling time of 33.2 ± 5.3 h. MR imaging demonstrated hyperintense T2-weighted and hypointense T1-weighted lesions with tumor induction in five of five and three of three sites at days 7 and 14, respectively. The mean (SD) tumor volume was 126.1 ± 36.2 mm(3) at day 7 (N = 5). US of the liver demonstrated a well-circumscribed, hypoechoic mass and comparison of tumor dimensions agreed well with MRI. Analysis of H&E- and CD31-stained sections demonstrated moderate-high grade epithelial tumors with minimal tumor necrosis and evidence of diffuse intratumoral and peritumoral neovascularization by day 7. CONCLUSIONS AS30D HCC cell line is tumorigenic following orthotopic injection into rat liver and can be used to generate an early vascularizing, slower-growing rat HCC tumor model.
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Affiliation(s)
- Scott M Thompson
- Medical Scientist Training Program, Mayo Clinic, Rochester, MN 55905, USA
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15
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Pascale F, Ghegediban SH, Bonneau M, Bedouet L, Namur J, Verret V, Schwartz-Cornil I, Wassef M, Laurent A. Modified Model of VX2 Tumor Overexpressing Vascular Endothelial Growth Factor. J Vasc Interv Radiol 2012; 23:809-817.e2. [DOI: 10.1016/j.jvir.2012.02.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2011] [Revised: 02/02/2012] [Accepted: 02/06/2012] [Indexed: 10/28/2022] Open
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16
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Cressman ENK. Animal models in hepatocellular carcinoma: another step in the right direction. J Vasc Interv Radiol 2012; 23:395-6. [PMID: 22365297 DOI: 10.1016/j.jvir.2011.11.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2011] [Accepted: 11/28/2011] [Indexed: 11/18/2022] Open
Affiliation(s)
- Erik N K Cressman
- Department of Radiology, University of Minnesota Medical Center, Minneapolis, MN 55455, USA
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