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Gleba JJ, Marlow LA, Miller EE, Miller JL, Alasonyalilar-Demirer A, Guo Y, Mody K, Roberts LR, Alberts SR, Truty MJ, Patel TC, Copland JA. Abstract 1004: Defining stearoyl-CoA desaturase 1 as a molecular therapeutic target against cholangiocarcinoma. Cancer Res 2021. [DOI: 10.1158/1538-7445.am2021-1004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Cancer cells increase lipid metabolism by up-regulation lipogenic enzymes such as stearoyl-CoA desaturase 1 (SCD1). It is the rate-limiting enzyme in the de novo synthesis of fatty acids (FAs), catalyzing the conversion and biosynthesis of saturated fatty acids (SFAs) into monounsaturated fatty acids (MUFAs). We developed SSI-4, a novel highly specific SCD1 inhibitor. The anti-tumor activity ofSSI-4 was examined against different cholangiocarcinoma (CCA) models that included human and mouseCCA cell lines, CCA patient-derived xenografts (PDX) NOD SCID gamma (NSG) mouse models, and CCA PDX derived organoids. Using cell proliferation assay, we examined twelve CCA cell lines and 4 were very sensitive to SSI-4 (1-40 nM IC50). The remaining CCA cell lines showed moderate to no sensitivity to SSI-4. Studies at the protein level have shown that SCD1 is present in both sensitive and non-sensitive cells. Thus, SCD1 must be present in sensitive cells but is not predictive of response to an SCD1 inhibitor. In an effort to identify biomarkers predicting response to therapy, we performed assays, such as lipid, lactate, or energy phenotype which identified elevated lactate and unsaturated fatty acid levels as well as a glycolytic energy phenotype. In vivo, CCA PDX models have demonstrated that SSI-4strongly inhibited tumor growth. Immunohistochemical analysis of CCA tumors revealed elevated glycolytic genes in sensitive cells and thus, a potential predictive biomarker. We are currently pursuing a better understanding of the relationship between glycolysis and fatty acid synthesis/metabolism. We are also testing novel combination therapy of SSI-4 with the standard of care and other drugs to develop novel treatments for CCA. Using CCA PDX derived organoids showed synergistic antitumor activity of SSI-4in combination with cancer standard of care drugs such as gemcitabine and cisplatin. Collectively, we expect to develop a biomarker-driven selection of CCA patients sensitive to SCD1 inhibitors and novel SSI-4 combination therapy leading to improved patient survival.
Citation Format: Justyna J. Gleba, Laura A. Marlow, Erin E. Miller, James L. Miller, Aylin Alasonyalilar-Demirer, Yi Guo, Kabir Mody, Lewis R. Roberts, Steven R. Alberts, Mark J. Truty, Tushar C. Patel, John A. Copland. Defining stearoyl-CoA desaturase 1 as a molecular therapeutic target against cholangiocarcinoma [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2021; 2021 Apr 10-15 and May 17-21. Philadelphia (PA): AACR; Cancer Res 2021;81(13_Suppl):Abstract nr 1004.
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Affiliation(s)
| | | | | | | | | | - Yi Guo
- 2Mayo Clinic, Rochester, MN
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Elshafae SM, Dirksen WP, Alasonyalilar-Demirer A, Breitbach J, Yuan S, Kantake N, Supsavhad W, Hassan BB, Attia Z, Rosol TJ. Canine prostatic cancer cell line (LuMa) with osteoblastic bone metastasis. Prostate 2020; 80:698-714. [PMID: 32348616 PMCID: PMC7291846 DOI: 10.1002/pros.23983] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 03/28/2020] [Accepted: 04/02/2020] [Indexed: 12/24/2022]
Abstract
BACKGROUND Osteoblastic bone metastasis represents the most common complication in men with prostate cancer (PCa). During progression and bone metastasis, PCa cells acquire properties similar to bone cells in a phenomenon called osteomimicry, which promotes their ability to metastasize, proliferate, and survive in the bone microenvironment. The mechanism of osteomimicry resulting in osteoblastic bone metastasis is unclear. METHODS We developed and characterized a novel canine prostatic cancer cell line (LuMa) that will be useful to investigate the relationship between osteoblastic bone metastasis and osteomimicry in PCa. The LuMa cell line was established from a primary prostate carcinoma of a 13-year old mixed breed castrated male dog. Cell proliferation and gene expression of LuMa were measured and compared to three other canine prostatic cancer cell lines (Probasco, Ace-1, and Leo) in vitro. The effect of LuMa cells on calvaria and murine preosteoblastic (MC3T3-E1) cells was measured by quantitative reverse-transcription polymerase chain reaction and alkaline phosphatase assay. LuMa cells were transduced with luciferase for monitoring in vivo tumor growth and metastasis using different inoculation routes (subcutaneous, intratibial [IT], and intracardiac [IC]). Xenograft tumors and metastases were evaluated using radiography and histopathology. RESULTS After left ventricular injection, LuMa cells metastasized to bone, brain, and adrenal glands. IT injections induced tumors with intramedullary new bone formation. LuMa cells had the highest messenger RNA levels of osteomimicry genes (RUNX2, RANKL, and Osteopontin [OPN]), CD44, E-cadherin, and MYOF compared to Ace-1, Probasco, and Leo cells. LuMa cells induced growth in calvaria defects and modulated gene expression in MC3T3-E1 cells. CONCLUSIONS LuMa is a novel canine PCa cell line with osteomimicry and stemness properties. LuMa cells induced osteoblastic bone formation in vitro and in vivo. LuMa PCa cells will serve as an excellent model for studying the mechanisms of osteomimicry and osteoblastic bone and brain metastasis in prostate cancer.
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Affiliation(s)
- Said M. Elshafae
- Dept. of Veterinary Biosciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH, USA
- Dept. of Pathology, Faculty of Veterinary medicine, Benha University, Benha, Egypt
- Dept. of Neuroscience and Pharmacology, Carver College of Medicine, University of Iowa, Iowa City, IA, USA
| | - Wessel P. Dirksen
- Dept. of Veterinary Biosciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH, USA
- Dept. of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH, USA
| | - Aylin Alasonyalilar-Demirer
- Dept. of Veterinary Biosciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH, USA
- Department of Pathology, Faculty of Veterinary Medicine, Bursa Uludag University, Turkey
| | - Justin Breitbach
- Dept. of Veterinary Biosciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH, USA
| | - Shiyu Yuan
- Dept. of Biomedical Sciences, Heritage College of Osteopathic Medicine, Ohio University, Athens, OH, USA
| | - Noriko Kantake
- Dept. of Biomedical Sciences, Heritage College of Osteopathic Medicine, Ohio University, Athens, OH, USA
| | - Wachiraphan Supsavhad
- Dept. of Pathology, Faculty of Veterinary Medicine, Kasetsart University, Bangkok, Thailand
| | - Bardes B. Hassan
- Dept. of Veterinary Biosciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH, USA
- Dept. of Pathology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Zayed Attia
- Dept. of Veterinary Biosciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH, USA
- Dept. of Animal Medicine and Infectious Diseases, Faculty of Veterinary Medicine, Sadat City University, Sadat City, Egypt
| | - Thomas J. Rosol
- Dept. of Biomedical Sciences, Heritage College of Osteopathic Medicine, Ohio University, Athens, OH, USA
- Correspondence to: Dr. Thomas Rosol, Department of Biomedical Sciences, Heritage College of Osteopathic Medicine, Ohio University, 225 Irvine Hall, Athens, OH 45701, USA. , Phone: 740.593.2405
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Kohart NA, Elshafae SM, Supsahvad W, Alasonyalilar-Demirer A, Panfil AR, Xiang J, Dirksen WP, Veis DJ, Green PL, Weilbaecher KN, Rosol TJ. Mouse model recapitulates the phenotypic heterogeneity of human adult T-cell leukemia/lymphoma in bone. J Bone Oncol 2019; 19:100257. [PMID: 31871882 PMCID: PMC6911918 DOI: 10.1016/j.jbo.2019.100257] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 08/16/2019] [Accepted: 08/19/2019] [Indexed: 11/16/2022] Open
Abstract
Adult T-cell leukemia/lymphoma has a unique relationship to bone including latency in the marrow, and development of bone invasion, osteolytic tumors and humoral hypercalcemia of malignancy. To study these conditions, we established and characterized a novel mouse model of ATL bone metastasis. Patient-derived ATL cell lines including three that do not express HTLV-1 oncoprotein Tax (ATL-ED, RV-ATL, TL-Om1), an in vitro transformed human T-cell line with high Tax expression (HT-1RV), and an HTLV-1 negative T-cell lymphoma (Jurkat) were injected intratibially into NSG mice, and were capable of proliferating and modifying the bone microenvironment. Radiography, μCT, histopathology, immunohistochemistry, plasma calcium concentrations, and qRT-PCR for several tumor-bone signaling mRNAs were performed. Luciferase-positive ATL-ED bone tumors allowed for in vivo imaging and visualization of bone tumor growth and metastasis over time. ATL-ED and HT-1RV cells caused mixed osteolytic/osteoblastic bone tumors, TL-Om1 cells exhibited minimal bone involvement and aggressive local invasion into the adjacent soft tissues, Jurkat cells proliferated within bone marrow and induced minimal bone cell response, and RV-ATL cells caused marked osteolysis. This mouse model revealed important mechanisms of human ATL bone neoplasms and will be useful to investigate biological interactions, potential therapeutic targets, and new bone-targeted agents for the prevention of ATL metastases to bone.
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Key Words
- ATL, adult T-cell leukemia/lymphoma
- Bone resorption
- HHM, humoral hypercalcemia of malignancy
- HTLV-1
- HTLV-1, Human T-cell leukemia virus type 1
- Hbz, HTLV-1 basic zipper protein
- Lymphoma
- Metastasis
- Mouse model
- NK, natural killer
- NOD, non-obese diabetic
- NSG, NOD-scid IL2Rgammanull
- SCID, CB17-Prkdcscid
- Tax, transcriptional activator from the X region
- qRT-PCR, quantitative real-time polymerase chain reaction
- μCT, micro-computed tomography
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Affiliation(s)
- Nicole A. Kohart
- Department of Veterinary Biosciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH 43210, USA
| | - Said M. Elshafae
- Department of Veterinary Biosciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH 43210, USA
- Department of Radiology, College of Medicine, The Ohio State University, Columbus, OH 43210, USA
- Department of Pathology, Faculty of Veterinary Medicine, Benha University, Kalyubia 3736, Egypt
| | - Wachirapan Supsahvad
- Department of Veterinary Biosciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH 43210, USA
- Department of Pathology, Faculty of Veterinary Medicine, Kasetsart University, Bangkok, Thailand
| | - Aylin Alasonyalilar-Demirer
- Department of Veterinary Biosciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH 43210, USA
- Department of Pathology, Faculty of Veterinary Medicine, Bursa Uludag University, 16059 Bursa, Turkey
| | - Amanda R. Panfil
- Department of Veterinary Biosciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH 43210, USA
| | - Jingyu Xiang
- Department of Medicine, Division of Oncology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Wessel P. Dirksen
- Department of Veterinary Biosciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH 43210, USA
| | - Deborah J. Veis
- Department of Medicine, Division of Oncology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Patrick L. Green
- Department of Veterinary Biosciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH 43210, USA
| | - Katherine N. Weilbaecher
- Department of Medicine, Division of Oncology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Thomas J. Rosol
- Department of Veterinary Biosciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH 43210, USA
- Department of Biomedical Sciences, Heritage College of Osteopathic Medicine, Ohio University, 225 Irvine Hall, Athens, OH 45701, USA
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Karakaya E, Alpay G, Yilmazbas-Mecitoglu G, Alasonyalilar-Demirer A, Akgul B, Inan-Ozturkoglu S, Ozyigit MO, Seyrek-Intas D, Seyrek-Intas K, Yesilbag K, Gumen A, Keskin A. Perosomus elumbis in a Holstein calf infected with bovine viral diarrhea virus. Tierarztl Prax Ausg G Grosstiere Nutztiere 2018. [DOI: 10.1055/s-0038-1623199] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
SummaryThe detection of bovine viral diarrhea virus (BVDV) in a female Holstein calf presented with perosomus elumbis, a congenital anomaly, is reported here. A cow with dystocia was evaluated and an abnormal dead calf was detected during vaginal examination. The calf was retrieved via caesarean section and exhibited abnormalities characteristic of PE, such as vertebral and pelvic malformations. These abnormalities were further confirmed using radiographic and necropsy examinations. At necropsy cerebellar hypoplasia was an additional finding, which is a typical lesion associated with bovine virus diarrhea (BVD). Several tissue samples from the calf were tested for the presence of antigens of BVDV and bovine herpesvirus-1 (BHV-1) by ELISA. In addition, sera samples from the dam and calf were tested for the presence of antibodies against BVDV, BHV-1, and bluetongue disease virus (BTV) using a virus neutralization assay. Results indicated that the calf was congenitally infected with BVDV, whereas there was no evidence for the presence of BHV-1 and BTV. In the dam’s serum no antibodies against BVDV, BHV-1, and BTV were detected. Even though the etiology of perosomus elumbis is unknown, BVDV, which causes fetal anomalies at early gestation in cows, may have been a contributing factor in this case.
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Alasonyalilar-Demirer A, Kahraman MM, Akkoç A, Erturkuner SP, Guzel EE, Kul O, Ipek V. Meningoencephalitis caused by pathogenic Sarcocystis species in a naturally infected sheep in Turkey. Tierarztl Prax Ausg G Grosstiere Nutztiere 2017; 45:42-46. [PMID: 28116411 DOI: 10.15653/tpg-141038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Accepted: 07/11/2016] [Indexed: 11/22/2022]
Abstract
A 3-year-old sheep was examined after an acute onset of hind limb paralysis and ataxia. At necropsy, central nervous system, pulmonary and intestinal hyperaemia and ecchymoses in the aortic arch were observed. Main microscopic lesions were confined to the heart, cerebrum and cerebellum. There were a multifocal mild myocarditis and nonsuppurative meningoencephalitis together with protozoal cysts in the heart and the brain. Protozoal cystic structures were observed within many of the myocardial fibers as well as in the cerebrum and cerebellum. Using light microscopy it could not be morphologically determined whether these organisms were Toxoplasma (T.) gondii or Neospora (N.) caninum. Additional diagnostic methods like immunohistochemistry and polymerase chain reaction provided differentiation of Sarcocystis from T. gondii and N. caninum. Transmission electron microscopy demonstrated characteristic features of Sarcocystis sp. as previously described. This is the first confirmed diagnosis of Sarcocystis sp. in the central nervous system of a sheep from Turkey.
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Affiliation(s)
- Aylin Alasonyalilar-Demirer
- Aylin A. Alasonyalilar-Demirer, Department of Pathology, Faculty of Veterinary Medicine, Uludag University, Gorukle Campus, 16059 Bursa, Turkey,
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Karakaya E, Alpay G, Yilmazbas-Mecitoglu G, Alasonyalilar-Demirer A, Akgül B, Inan-Ozturkoglu S, Ozyigit MO, Seyrek-Intas D, Seyrek-Intas K, Yesilbag K, Gumen A, Keskin A. Perosomus elumbis in a Holstein calf infected with bovine viral diarrhea virus. Tierarztl Prax Ausg G Grosstiere Nutztiere 2013; 41:387-391. [PMID: 24326794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2013] [Accepted: 08/06/2013] [Indexed: 06/03/2023]
Abstract
The detection of bovine viral diarrhea virus (BVDV) in a female Holstein calf presented with perosomus elumbis, a congenital anomaly, is reported here. A cow with dystocia was evaluated and an abnormal dead calf was detected during vaginal examination. The calf was retrieved via caesarean section and exhibited abnormalities characteristic of PE, such as vertebral and pelvic malformations. These abnormalities were further confirmed using radiographic and necropsy examinations. At necropsy cerebellar hypoplasia was an additional finding, which is a typical lesion associated with bovine virus diarrhea (BVD). Several tissue samples from the calf were tested for the presence of antigens of BVDV and bovine herpesvirus-1 (BHV-1) by ELISA. In addition, sera samples from the dam and calf were tested for the presence of antibodies against BVDV, BHV-1, and bluetongue disease virus (BTV) using a virus neutralization assay. Results indicated that the calf was congenitally infected with BVDV, whereas there was no evidence for the presence of BHV-1 and BTV. In the dam's serum no antibodies against BVDV, BHV-1, and BTV were detected. Even though the etiology of perosomus elumbis is unknown, BVDV, which causes fetal anomalies at early gestation in cows, may have been a contributing factor in this case.
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Affiliation(s)
- E Karakaya
- Abdulkadir Keskin, Department of Obstetrics and Gynaecology, Faculty of Veterinary Medicine, Uludag University, Gorukle Campus, 16059 Bursa, Turkey,
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Alasonyalilar-Demirer A, Sonmez G, Akdesir E, Palamutlu U. A Case of Alimentary Lymphoma in a Mare. J Comp Pathol 2012. [DOI: 10.1016/j.jcpa.2011.11.168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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