1
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Pancreatic ductal adenocarcinoma: tumor microenvironment and problems in the development of novel therapeutic strategies. Clin Exp Med 2022:10.1007/s10238-022-00886-1. [DOI: 10.1007/s10238-022-00886-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 08/30/2022] [Indexed: 12/19/2022]
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2
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Luo W, Wang Y, Zhang T. Win or loss? Combination therapy does improve the oncolytic virus therapy to pancreatic cancer. Cancer Cell Int 2022; 22:160. [PMID: 35443724 PMCID: PMC9022249 DOI: 10.1186/s12935-022-02583-1] [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: 12/24/2021] [Accepted: 04/11/2022] [Indexed: 11/10/2022] Open
Abstract
Pancreatic cancer (PC) is a growing global burden, remaining one of the most lethal cancers of the gastrointestinal tract. Moreover, PC is resistant to various treatments such as chemotherapy, radiotherapy, and immunotherapy. New therapies are urgently needed to improve the prognosis of PC. Oncolytic virus (OV) therapy is a promising new treatment option. OV is a genetically modified virus that selectively replicates in tumor cells. It can kill tumor cells without harming normal cells. The activation of tumor-specific T-cells is a unique feature of OV-mediated therapy. However, OV-mediated mono-therapeutic efficacy remains controversial, especially for metastatic or advanced patients who require systemically deliverable therapies. Hence, combination therapies will be critical to improve the therapeutic efficacy of OV-mediated therapy and prevent tumor recurrence. This review aims to investigate novel combinatorial treatments with OV therapy and explore the inner mechanism of those combined therapies, hopefully providing a new direction for a better prognosis of PC.
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Affiliation(s)
- Wenhao Luo
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 1 Shuaifuyuan, Wangfujing Street, Beijing, 100730, China
| | - Yawen Wang
- Department of Endocrinology, State Key Laboratory of Complex Severe and Rare Diseases, Key Laboratory of Endocrinology of National Health Commission of the People's Republic of China, The Translational Medicine Center of Peking Union Medical College Hospital (PUMCH), PUMCH, Chinese Academy of Medical Sciences and Peking Union Medical College (CAMS & PUMC), Beijing, 100730, China
| | - Taiping Zhang
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 1 Shuaifuyuan, Wangfujing Street, Beijing, 100730, China. .,Clinical Immunology Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China.
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3
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Kim SI, Chaurasiya S, Sivanandam V, Kang S, Park AK, Lu J, Yang A, Zhang Z, Bagdasarian IA, Woo Y, Morgan JT, Yin Z, Fong Y, Warner SG. Priming stroma with a vitamin D analog to optimize viroimmunotherapy for pancreatic cancer. Mol Ther Oncolytics 2022; 24:864-872. [PMID: 35317522 PMCID: PMC8914466 DOI: 10.1016/j.omto.2022.02.022] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Accepted: 02/19/2022] [Indexed: 12/15/2022] Open
Abstract
Pancreatic cancer resistance to immunotherapies is partly due to deficits in tumor-infiltrating immune cells and stromal density. Combination therapies that modify stroma and recruit immune cells are needed. Vitamin D analogs such as calcipotriol (Cal) decrease fibrosis in pancreas stroma, thus allowing increased chemotherapy delivery. OVs infect, replicate in, and kill cancer cells and recruit immune cells to immunodeficient microenvironments. We investigated whether stromal modification with Cal would enhance oncolytic viroimmunotherapy using recombinant orthopoxvirus, CF33. We assessed effect of Cal on CF33 replication using pancreas ductal adenocarcinoma (PDAC) cell lines and in vivo flank orthotopic models. Proliferation assays showed that Cal did not alter viral replication. Less replication was seen in cell lines whose division was slowed by Cal, but this appeared proportional to cell proliferation. Three-dimensional in vitro models demonstrated decreased myofibroblast integrity after Cal treatment. Cal increased vascular lumen size and immune cell infiltration in subcutaneous models of PDAC and increased viral delivery and replication. Cal plus serial OV dosing in the syngeneic Pan02 model caused more significant tumor abrogation than other treatments. Cal-treated tumors had less dense fibrosis, enhanced immune cell infiltration, and decreased T cell exhaustion. Calcipotriol is a possible adjunct for CF33-based oncolytic viroimmunotherapy against PDAC.
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Affiliation(s)
- Sang-In Kim
- Department of Immuno-Oncology, Beckman Research Institute, City of Hope National Medical Center, 1500 E. Duarte Road, Duarte, CA 91010, USA
| | - Shyambabu Chaurasiya
- Department of Immuno-Oncology, Beckman Research Institute, City of Hope National Medical Center, 1500 E. Duarte Road, Duarte, CA 91010, USA
| | - Venkatesh Sivanandam
- Department of Immuno-Oncology, Beckman Research Institute, City of Hope National Medical Center, 1500 E. Duarte Road, Duarte, CA 91010, USA
| | - Seonah Kang
- Department of Immuno-Oncology, Beckman Research Institute, City of Hope National Medical Center, 1500 E. Duarte Road, Duarte, CA 91010, USA
| | - Anthony K Park
- Department of Hematologic Malignancies Translational Science, Beckman Research Institute, City of Hope National Medical Center, Duarte, CA 91010, USA
| | - Jianming Lu
- Department of Immuno-Oncology, Beckman Research Institute, City of Hope National Medical Center, 1500 E. Duarte Road, Duarte, CA 91010, USA
| | - Annie Yang
- Department of Immuno-Oncology, Beckman Research Institute, City of Hope National Medical Center, 1500 E. Duarte Road, Duarte, CA 91010, USA
| | - Zhifang Zhang
- Department of Immuno-Oncology, Beckman Research Institute, City of Hope National Medical Center, 1500 E. Duarte Road, Duarte, CA 91010, USA
| | - Isabella A Bagdasarian
- Department of Bioengineering, University of California, Riverside, Riverside, CA 92521, USA
| | - Yanghee Woo
- Department of Immuno-Oncology, Beckman Research Institute, City of Hope National Medical Center, 1500 E. Duarte Road, Duarte, CA 91010, USA.,Department of Surgery, Division of Surgical Oncology, City of Hope National Medical Center, 1500 E. Duarte Road, Duarte, CA 91010, USA
| | - Joshua T Morgan
- Department of Bioengineering, University of California, Riverside, Riverside, CA 92521, USA
| | - Zhirong Yin
- Pathology Core, Department of Pathology, Beckman Research Institute, City of Hope National Medical Center, Duarte, CA 91010, USA
| | - Yuman Fong
- Department of Immuno-Oncology, Beckman Research Institute, City of Hope National Medical Center, 1500 E. Duarte Road, Duarte, CA 91010, USA.,Department of Surgery, Division of Surgical Oncology, City of Hope National Medical Center, 1500 E. Duarte Road, Duarte, CA 91010, USA
| | - Susanne G Warner
- Department of Immuno-Oncology, Beckman Research Institute, City of Hope National Medical Center, 1500 E. Duarte Road, Duarte, CA 91010, USA.,Department of Surgery, Division of Surgical Oncology, City of Hope National Medical Center, 1500 E. Duarte Road, Duarte, CA 91010, USA
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4
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Schlick K, Kiem D, Greil R. Recent Advances in Pancreatic Cancer: Novel Prognostic Biomarkers and Targeted Therapy-A Review of the Literature. Biomolecules 2021; 11:1469. [PMID: 34680101 PMCID: PMC8533343 DOI: 10.3390/biom11101469] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 09/27/2021] [Accepted: 10/01/2021] [Indexed: 12/14/2022] Open
Abstract
Pancreatic adenocarcinoma carries a devastating prognosis. For locally advanced and metastatic disease, several chemotherapeutic regimens are currently being used. Over the past years, novel approaches have included targeting EGFR, NTRK, PARP, K-Ras as well as stroma and fibrosis, leading to approval of NTRK and PARP inhibitors. Moreover, immune check point inhibitors and different combinational approaches involving immunotherapeutic agents are being investigated in many clinical trials. MiRNAs represent a novel tool and are thought to greatly improve management by allowing for earlier diagnosis and for more precise guidance of treatment.
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Affiliation(s)
- Konstantin Schlick
- Oncologic Center, Department of Internal Medicine III with Haematology, Medical Oncology, Haemostaseology, Infectiology and Rheumatology, Paracelsus Medical University, 5020 Salzburg, Austria; (K.S.); (D.K.)
- Cancer Cluster Salzburg, 5020 Salzburg, Austria
| | - Dominik Kiem
- Oncologic Center, Department of Internal Medicine III with Haematology, Medical Oncology, Haemostaseology, Infectiology and Rheumatology, Paracelsus Medical University, 5020 Salzburg, Austria; (K.S.); (D.K.)
- Cancer Cluster Salzburg, 5020 Salzburg, Austria
| | - Richard Greil
- Oncologic Center, Department of Internal Medicine III with Haematology, Medical Oncology, Haemostaseology, Infectiology and Rheumatology, Paracelsus Medical University, 5020 Salzburg, Austria; (K.S.); (D.K.)
- Cancer Cluster Salzburg, 5020 Salzburg, Austria
- Laboratory for Immunological and Molecular Cancer Research (SCRI-LIMCR), Salzburg Cancer Research Institute, 5020 Salzburg, Austria
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5
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Singh HM, Leber MF, Bossow S, Engeland CE, Dessila J, Grossardt C, Zaoui K, Bell JC, Jäger D, von Kalle C, Ungerechts G. MicroRNA-sensitive oncolytic measles virus for chemovirotherapy of pancreatic cancer. MOLECULAR THERAPY-ONCOLYTICS 2021; 21:340-355. [PMID: 34141871 PMCID: PMC8182383 DOI: 10.1016/j.omto.2021.04.015] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 04/28/2021] [Indexed: 02/07/2023]
Abstract
Advanced pancreatic cancer is characterized by few treatment options and poor outcomes. Oncolytic virotherapy and chemotherapy involve complementary pharmacodynamics and could synergize to improve therapeutic efficacy. Likewise, multimodality treatment may cause additional toxicity, and new agents have to be safe. Balancing both aims, we generated an oncolytic measles virus for 5-fluorouracil-based chemovirotherapy of pancreatic cancer with enhanced tumor specificity through microRNA-regulated vector tropism. The resulting vector encodes a bacterial prodrug convertase, cytosine deaminase-uracil phosphoribosyl transferase, and carries synthetic miR-148a target sites in the viral F gene. Combination of the armed and targeted virus with 5-fluorocytosine, a prodrug of 5-fluorouracil, resulted in cytotoxicity toward both infected and bystander pancreatic cancer cells. In pancreatic cancer xenografts, a single intratumoral injection of the virus induced robust in vivo expression of prodrug convertase. Based on intratumoral transgene expression kinetics, we devised a chemovirotherapy regimen to assess treatment efficacy. Concerted multimodality treatment with intratumoral virus and systemic prodrug administration delayed tumor growth and prolonged survival of xenograft-bearing mice. Our results demonstrate that 5-fluorouracil-based chemovirotherapy with microRNA-sensitive measles virus is an effective strategy against pancreatic cancer at a favorable therapeutic index that warrants future clinical translation.
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Affiliation(s)
- Hans Martin Singh
- Clinical Cooperation Unit Virotherapy, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany.,Department of Medical Oncology, National Center for Tumor Diseases (NCT) and Heidelberg University Hospital, Im Neuenheimer Feld 460, 69120 Heidelberg, Germany
| | - Mathias Felix Leber
- Clinical Cooperation Unit Virotherapy, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany.,Department of Medical Oncology, National Center for Tumor Diseases (NCT) and Heidelberg University Hospital, Im Neuenheimer Feld 460, 69120 Heidelberg, Germany.,Cancer Therapeutics Program, Ottawa Hospital Research Institute, 501 Smyth Road, Ottawa, ONT, Canada
| | - Sascha Bossow
- Clinical Cooperation Unit Virotherapy, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany
| | - Christine E Engeland
- Clinical Cooperation Unit Virotherapy, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany.,Department of Medical Oncology, National Center for Tumor Diseases (NCT) and Heidelberg University Hospital, Im Neuenheimer Feld 460, 69120 Heidelberg, Germany.,Clinical Cooperation Unit Virotherapy, Research Group Mechanisms of Oncolytic Immunotherapy, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany.,Faculty of Health/School of Medicine, Institute of Virology and Microbiology, Witten/Herdecke University, Stockumer Straße 10, 58453 Witten, Germany
| | - Jan Dessila
- Clinical Cooperation Unit Virotherapy, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany
| | - Christian Grossardt
- Clinical Cooperation Unit Virotherapy, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany
| | - Karim Zaoui
- Clinical Cooperation Unit Virotherapy, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany.,Department of Otorhinolaryngology and Head and Neck Surgery, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany
| | - John C Bell
- Cancer Therapeutics Program, Ottawa Hospital Research Institute, 501 Smyth Road, Ottawa, ONT, Canada
| | - Dirk Jäger
- Department of Medical Oncology, National Center for Tumor Diseases (NCT) and Heidelberg University Hospital, Im Neuenheimer Feld 460, 69120 Heidelberg, Germany
| | - Christof von Kalle
- Berlin Institute of Health and Charité Universitätsmedizin, Anna-Louisa-Karsch-Straße 2, 10178 Berlin, Germany.,Sidra Medical and Research Center, Al Luqta Street, Education City, North Campus, P.O. Box 26999, Doha, Qatar
| | - Guy Ungerechts
- Clinical Cooperation Unit Virotherapy, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany.,Department of Medical Oncology, National Center for Tumor Diseases (NCT) and Heidelberg University Hospital, Im Neuenheimer Feld 460, 69120 Heidelberg, Germany.,Cancer Therapeutics Program, Ottawa Hospital Research Institute, 501 Smyth Road, Ottawa, ONT, Canada
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6
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Easty DJ, Farr CJ, Hennessy BT. New Roles for Vitamin D Superagonists: From COVID to Cancer. Front Endocrinol (Lausanne) 2021; 12:644298. [PMID: 33868174 PMCID: PMC8045760 DOI: 10.3389/fendo.2021.644298] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Accepted: 03/10/2021] [Indexed: 12/12/2022] Open
Abstract
Vitamin D is a potent steroid hormone that induces widespread changes in gene expression and controls key biological pathways. Here we review pathophysiology of vitamin D with particular reference to COVID-19 and pancreatic cancer. Utility as a therapeutic agent is limited by hypercalcemic effects and attempts to circumvent this problem have used vitamin D superagonists, with increased efficacy and reduced calcemic effect. A further caveat is that vitamin D mediates multiple diverse effects. Some of these (anti-fibrosis) are likely beneficial in patients with COVID-19 and pancreatic cancer, whereas others (reduced immunity), may be beneficial through attenuation of the cytokine storm in patients with advanced COVID-19, but detrimental in pancreatic cancer. Vitamin D superagonists represent an untapped resource for development of effective therapeutic agents. However, to be successful this approach will require agonists with high cell-tissue specificity.
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Affiliation(s)
- David J. Easty
- Department of Medical Oncology, Our Lady of Lourdes Hospital, Drogheda, Ireland
| | - Christine J. Farr
- Department of Genetics, University of Cambridge, Cambridge, United Kingdom
| | - Bryan T. Hennessy
- Department of Molecular Medicine, Royal College of Surgeons in Ireland, Dublin, Ireland
- Department of Oncology, Our Lady of Lourdes Hospital, Drogheda, Ireland
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7
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Haller SD, Monaco ML, Essani K. The Present Status of Immuno-Oncolytic Viruses in the Treatment of Pancreatic Cancer. Viruses 2020; 12:v12111318. [PMID: 33213031 PMCID: PMC7698570 DOI: 10.3390/v12111318] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 11/12/2020] [Accepted: 11/14/2020] [Indexed: 12/24/2022] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is the fifth leading cause of cancer-related death in Western countries. The incidence of PDAC has increased over the last 40 years and is projected to be the second leading cause of cancer death by 2030. Despite aggressive treatment regimens, prognosis for patients diagnosed with PDAC is very poor; PDAC has the lowest 5-year survival rate for any form of cancer in the United States (US). PDAC is very rarely detected in early stages when surgical resection can be performed. Only 20% of cases are suitable for surgical resection; this remains the only curative treatment when combined with adjuvant chemotherapy. Treatment regimens excluding surgical intervention such as chemotherapeutic treatments are associated with adverse effects and genetherapy strategies also struggle with lack of specificity and/or efficacy. The lack of effective treatments for this disease highlights the necessity for innovation in treatment options for patients diagnosed with early- to late-phase PDAC and immuno-oncolytic viruses (OVs) have been of particular interest since 2006 when the first oncolytic virus was approved as a therapy for nasopharyngeal cancers in China. Interest resurged in 2015 when T-Vec, an oncolytic herpes simplex virus, was approved in the United States for treatment of advanced melanoma. While many vectors have been explored, few show promise as treatment for pancreatic cancer, and fewer still have progressed to clinical trial evaluation. This review outlines recent strategies in the development of OVs targeting treatment of PDAC, current state of preclinical and clinical investigation and application.
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Affiliation(s)
| | | | - Karim Essani
- Correspondence: ; Tel.: +1-(269)-387-2661; Fax: +1-(269)-387-5609
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8
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Vitamin D as a Primer for Oncolytic Viral Therapy in Colon Cancer Models. Int J Mol Sci 2020; 21:ijms21197326. [PMID: 33023064 PMCID: PMC7582493 DOI: 10.3390/ijms21197326] [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: 09/05/2020] [Revised: 09/28/2020] [Accepted: 09/29/2020] [Indexed: 01/05/2023] Open
Abstract
Oncolytic viroimmunotherapy is an exciting modality that can offer lasting anti-tumor immunity for aggressive malignancies like colon cancer. The impact of oncolytic viruses may be extended by combining them with agents to prime a tumor for viral susceptibility. This study investigates vitamin D analogue as an adjunct to oncolytic viral therapy for colon cancer. While vitamin D (VD) has historically been viewed as anti-viral, our in vitro investigations using human colon cancer cell lines showed that VD does not directly inhibit replication of recombinant chimeric poxvirus CF33. VD did restrict growth in HT29 but not HCT116 human colon cancer cells. In vivo investigations using HCT116 and HT29 xenograft models of colon cancer demonstrated that a VD analogue, calcipotriol, was additive with CF33-based viral therapy in VD-responsive HT29 but not in HCT116 tumors. Analyses of RNA-sequencing and gene expression data demonstrated a downregulation in the Jak-STAT signaling pathway with the addition of VD to viral therapy in HT29 models suggesting that the anti-inflammatory properties of VD may enhance the effects of viral therapy in some models. In conclusion, VD may prime oncolytic viral therapy in certain colon cancers.
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9
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Chen SC, Ke CY, Subeq YM, Yang WT, Huang SG, Shiao AS, Lee RP. Protective Effect of Calcitriol on Organ Damage Induced by 5-Fluorouracil Treatment. Nutr Cancer 2020; 73:1687-1696. [PMID: 32777949 DOI: 10.1080/01635581.2020.1804948] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Chemotherapy is a major therapeutic strategy for patients with cancer. Owing to the severe inflammatory response of chemotherapy, patients experience extreme discomfort during treatment, and this may interrupt treatment completion. The vitamin D3 has a role in anti-inflammation, but no study has explored whether vitamin D3 has beneficial effects on patients undergoing chemotherapy. In this study, we investigated the effect of calcitriol (Vit-D) on inflammatory responses during 5-fluorouracil (5-FU) treatment. Rats were divided into five groups and treated with 1:1 dilution of 5-FU with equal amount of 0.9% saline, 1:3 dilution of 5-FU with 0.9% saline threefold dilution, 5-FU, Vit-D, or 5-FU + Vit-D. A single dose of 15 mg/kg of 5-FU was intravenously administered for 4 h, and the blood biochemical substances and inflammatory cytokines were assessed after the intervention. The 5-FU group had higher AST, ALT, LDH, and CPK levels than those in the 5-FU + Vit-D group. The 5-FU + Vit-D group had a lower TNF-α value than the 5-FU. The IL-6 levels in the 5-FU + Vit-D group were also significantly lower than those in 5-FU. Calcitriol administration during 5-FU therapy can alleviate the production of inflammatory cytokines and liver damage.
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Affiliation(s)
- Szu-Chi Chen
- Institute of Medical Sciences, Tzu Chi University, Hualien, Taiwan, ROC.,Department of Otolaryngology, Cheng Hsin General Hospital, Taipei, Taiwan, ROC
| | - Chun-Yen Ke
- Department of Nursing, St. Mary's Medicine Nursing and Management College, Yilan, Taiwan, ROC.,Department of Nursing, Tzu Chi University of Science and Technology, Hualien, Taiwan, ROC
| | - Yi-Maun Subeq
- Department of Nursing, National Taichung University of Science and Technology, Taichung, Taiwan, ROC
| | - Wan-Ting Yang
- Department of Orthopedics, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan, ROC
| | - Shyh-Geng Huang
- Institute of Medical Sciences, Tzu Chi University, Hualien, Taiwan, ROC
| | - An-Suey Shiao
- Department of Otolaryngology, Cheng Hsin General Hospital, Taipei, Taiwan, ROC
| | - Ru-Ping Lee
- Institute of Medical Sciences, Tzu Chi University, Hualien, Taiwan, ROC
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Morris-Paxton AA, Truter I. Prescribing patterns of vitamin D and analogues in a private healthcare patient population in South Africa. SOUTH AFRICAN JOURNAL OF CLINICAL NUTRITION 2020. [DOI: 10.1080/16070658.2020.1757878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Angela Ann Morris-Paxton
- Drug Utilization Research Unit (DURU), Department of Pharmacy, Nelson Mandela University, Port Elizabeth, South Africa
| | - Ilse Truter
- Drug Utilization Research Unit (DURU), Department of Pharmacy, Nelson Mandela University, Port Elizabeth, South Africa
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Novel Chimeric Immuno-Oncolytic Virus CF33-hNIS-antiPDL1 for the Treatment of Pancreatic Cancer. J Am Coll Surg 2020; 230:709-717. [PMID: 32032721 DOI: 10.1016/j.jamcollsurg.2019.12.027] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 12/17/2019] [Indexed: 02/06/2023]
Abstract
BACKGROUND Peritoneal carcinomatosis (PC) from pancreatic ductal adenocarcinoma (PDAC) is fatal. Our preclinical study presents an effective treatment against PDAC PC using a novel oncolytic viral agent, CF33-hNIS-antiPDL1. STUDY DESIGN CF33-hNIS-antiPDL1 is a genetically engineered chimeric orthopoxvirus, CF33, armed with the human Sodium Iodide Symporter (hNIS) and anti-PD-L1 antibody (anti-PD-L1). The in vitro cytotoxic ability of this virus against 5 PDAC cell lines was tested at various doses (multiplicity of infection [MOI] = 0.01, 0.1, 1, 10). Production and blockade function of virus-encoded anti-PD-L1 antibody were verified using immunoblot, immunoprecipitation, and PD-1/PD-L1 bioassay. In vivo mouse models of PC, with or without subcutaneous (SC) tumors, created by injecting AsPC-1-ffluc cells into nude mice, were treated with PBS or a single dose (1×105 plaque-forming units) of either intraperitoneal (IP) or IV injection of CF33-hNIS-antiPDL1. Mice with PC tumors were treated on days 0, 2, or 14 after tumor implantation. RESULTS CF33-hNIS-antiPDL1 killed PDAC cells in a dose-dependent manner, achieving >90% cell killing by day 8. Cells infected with CF33-hNIS-antiPDL1 produced bioactive anti-PD-L1 antibody, which blocked PD-1/PD-L1 interaction. In vivo, a single dose of virus reduced tumor burden and prolonged survival of treated mice. It was observed that IP administration of CF33-hNIS-antiPDL1 was more effective than IV administration. CONCLUSIONS CF33-hNIS-antiPDL1 virus is effective in infecting and killing human PDACs and producing functional anti-PD-L1 antibody. Intraperitoneal delivery of CF33-hNIS-antiPDL1 effectively reduces peritoneal tumor burden and improves survival after only 1 dose and is superior to IV delivery.
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12
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Tsai TH, Lin CJ, Hang CL, Chen WY. Calcitriol Attenuates Doxorubicin-Induced Cardiac Dysfunction and Inhibits Endothelial-to-Mesenchymal Transition in Mice. Cells 2019; 8:E865. [PMID: 31405028 PMCID: PMC6721693 DOI: 10.3390/cells8080865] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 08/01/2019] [Accepted: 08/08/2019] [Indexed: 02/06/2023] Open
Abstract
Doxorubicin (Dox) is an effective anti-neoplasm drug, but its cardiac toxicity limits its clinical use. Endothelial-to-mesenchymal transition (EndMT) has been found to be involved in the process of heart failure. It is unclear whether EndMT contributes to Dox-induced cardiomyopathy (DoIC). Calcitriol, an active form Vitamin D3, blocks the growth of cancer cells by inhibiting the Smad pathway. To investigate the effect of calcitriol via inhibiting EndMT in DoIC, C57BL/6 mice and endothelial-specific labeled mice were intraperitoneally administered Dox twice weekly for 4 weeks (32 mg/kg cumulative dose) and were subsequently treated with or without calcitriol for 12 weeks. Echocardiography revealed diastolic dysfunction at 13 weeks following the first Dox treatment, accompanied by increased myocardial fibrosis and up-regulated pro-fibrotic proteins. Calcitriol attenuated Dox-induced myocardial fibrosis, down-regulated pro-fibrotic proteins and improved diastolic function. Endothelial fate tracing revealed that EndMT-derived cells contributed to Dox-induced cardiac fibrosis. In vitro, human umbilical vein endothelial cells and mouse cardiac fibroblasts were treated with Transforming growth factor (TGF)-β with or without calcitriol. Morphological, immunofluorescence staining, and Western blot analyses revealed that TGF-β-induced EndMT and fibroblast-to-myofibroblast transition (FMT) were attenuated by calcitriol by the inhibition of the Smad2 pathway. Collectively, calcitriol attenuated DoIC through the inhibition of the EndMT and FMT processes.
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Affiliation(s)
- Tzu-Hsien Tsai
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan
- Chang Gung University College of Medicine, Kaohsiung 83301, Taiwan
| | - Cheng-Jei Lin
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan
| | - Chi-Ling Hang
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan
| | - Wei-Yu Chen
- Institute for Translational Research in Biomedicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan.
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