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Tadic S, Martínez A. Nucleic acid cancer vaccines targeting tumor related angiogenesis. Could mRNA vaccines constitute a game changer? Front Immunol 2024; 15:1433185. [PMID: 39081320 PMCID: PMC11286457 DOI: 10.3389/fimmu.2024.1433185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2024] [Accepted: 07/01/2024] [Indexed: 08/02/2024] Open
Abstract
Tumor related angiogenesis is an attractive target in cancer therapeutic research due to its crucial role in tumor growth, invasion, and metastasis. Different agents were developed aiming to inhibit this process; however they had limited success. Cancer vaccines could be a promising tool in anti-cancer/anti-angiogenic therapy. Cancer vaccines aim to initiate an immune response against cancer cells upon presentation of tumor antigens which hopefully will result in the eradication of disease and prevention of its recurrence by inducing an efficient and long-lasting immune response. Different vaccine constructs have been developed to achieve this and they could include either protein-based or nucleic acid-based vaccines. Nucleic acid vaccines are simple and relatively easy to produce, with high efficiency and safety, thus prompting a high interest in the field. Different DNA vaccines have been developed to target crucial regulators of tumor angiogenesis. Most of them were successful in pre-clinical studies, mostly when used in combination with other therapeutics, but had limited success in the clinic. Apparently, different tumor evasion mechanisms and reduced immunogenicity still limit the potential of these vaccines and there is plenty of room for improvement. Nowadays, mRNA cancer vaccines are making remarkable progress due to improvements in the manufacturing technology and represent a powerful potential alternative. Apart from their efficiency, mRNA vaccines are simple and cheap to produce, can encompass multiple targets simultaneously, and can be quickly transferred from bench to bedside. mRNA vaccines have already accomplished amazing results in cancer clinical trials, thus ensuring a bright future in the field, although no anti-angiogenic mRNA vaccines have been described yet. This review aims to describe recent advances in anti-angiogenic DNA vaccine therapy and to provide perspectives for use of revolutionary approaches such are mRNA vaccines for anti-angiogenic treatments.
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Affiliation(s)
| | - Alfredo Martínez
- Angiogenesis Unit, Oncology Area, Center for Biomedical Research of La Rioja (CIBIR), Logroño, Spain
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2
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Zhao J, Zhang X, Du Y, Zhou L, Dong Z, Zhao J, Lu J. Allogenic mouse cell vaccine inhibits lung cancer progression by inhibiting angiogenesis. Hum Vaccin Immunother 2021; 17:35-50. [PMID: 32460680 DOI: 10.1080/21645515.2020.1759996] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Aim: This research investigated the therapeutic effect of an allogeneic mouse brain microvascular endothelial cell vaccine on lung cancer and further elucidated its potential anti-angiogenic mechanism. Materials & methods: The immune effect of the allogeneic bEnd.3 vaccine and DC vaccine loaded with bEnd.3 antigen on the subcutaneous transplantation of Lewis lung cancer (LLC) was assessed by ELISA, the CCK test and the CTL killing test. The mechanism was preliminarily revealed by immunohistochemistry and immunoblot analysis. Results: This study revealed that tumor volume was decreased (p < .01) and the survival was prolonged significantly (p < .05) by the bEnd.3 vaccine in subcutaneous LLC transplantation in the vaccine prevention group. In contrast, both tumor volume in the serum therapeutic group and survival of bEnd.3 vaccine were not significantly different from those of the control group (p > .05). Importantly, tumor volume and survival of the T lymphocyte therapeutic group were decreased and prolonged (p < .05). In addition, both tumor volume and survival of DC vaccine loaded with bEnd.3 in the vaccine prevention group were decreased and prolonged significantly (p < .01). Furthermore, bEnd.3 vaccine and DC vaccine loaded with bEnd.3 both produced the activity of killing bEnd.3 target cells in vitro.The reason may induce the immune mice to produce anti-VEGFR-II, anti-endoglin and anti-integrin αν antibodies to have an anti-angiogenesis function. Conclusion: The allogeneic mouse bEnd.3 cell vaccine can block angiogenesis and prevent the development of lung cancer transplantation tumors.
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Affiliation(s)
- Jun Zhao
- Department of Oncology, Changzhi People's Hospital , Changzhi, China.,Department of Pathophysiology, College of Basic Medical Sciences, Zhengzhou University , Zhengzhou, China
| | - Xiaoling Zhang
- Department of Oncology, Changzhi People's Hospital , Changzhi, China
| | - Yunyi Du
- Department of Oncology, Changzhi People's Hospital , Changzhi, China
| | - Lurong Zhou
- Quality Control Department, Changzhi People's Hospital , Changzhi, China
| | - Ziming Dong
- Department of Pathophysiology, College of Basic Medical Sciences, Zhengzhou University , Zhengzhou, China.,Collaborative Innovation Center of Henan Province for Cancer Chemoprevention , Zhengzhou, China.,State Key Laboratory of Esophageal Cancer Prevention and Treatment, Zhengzhou University , Zhengzhou, China
| | - Jimin Zhao
- Department of Pathophysiology, College of Basic Medical Sciences, Zhengzhou University , Zhengzhou, China.,Collaborative Innovation Center of Henan Province for Cancer Chemoprevention , Zhengzhou, China.,State Key Laboratory of Esophageal Cancer Prevention and Treatment, Zhengzhou University , Zhengzhou, China
| | - Jing Lu
- Department of Pathophysiology, College of Basic Medical Sciences, Zhengzhou University , Zhengzhou, China.,Collaborative Innovation Center of Henan Province for Cancer Chemoprevention , Zhengzhou, China.,State Key Laboratory of Esophageal Cancer Prevention and Treatment, Zhengzhou University , Zhengzhou, China
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3
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Chen M, Xu G, Fan M, Jia H, Xiao L, Lang J. Anti-tumour effects of a xenogeneic fibroblast activation protein-based whole cell tumour vaccine in murine tumour models. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2019; 47:4182-4193. [PMID: 31722575 DOI: 10.1080/21691401.2019.1687498] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The clinical benefit of cancer immunotherapy, including tumour vaccines, is influenced by immunosuppressive factors in the tumour microenvironment. Among these factors, cancer-associated fibroblasts (CAFs) and their products, such as fibroblast activation protein-α (FAPα), greatly affect tumourigenesis, development, metastasis and treatment tolerance, which make them promising immunotherapy targets for cancer patients. Our previous study reported that a whole cell tumour vaccine (WCTV) expressing FAPα inhibited tumour growth by simultaneously attacking cancer cells and CAFs. This study aimed to improve WCTVs with xenoantigens to end immune tolerance and to further activate the adaptive immune system. In the present study, we designed a WCTV by transducing a vector encoding human FAPα (hFAPα) into murine tumour cells and evaluated its efficacy in multiple solid tumour models. Immunotherapy with this WCTV effectively delayed tumour growth and prevented recurrence. The anti-tumour responses were clearly linked to antigen-specific cytotoxic T cells, whereas CD4(+) T lymphocytes also played a role. Humoural immune responses were activated because the adoptive transfer of immunoglobulins induced abscopal anti-tumour effects, and autoantibodies against FAPα were specifically detected in the sera of immunized mice. Moreover, an increased number of apoptotic tumour cells along with a reduced number of CAFs within the tumours suggest that xenogeneic FAPα-based WCTV has the potential to drive T cell and antibody responses against cancer cells and CAFs. This finding could offer an advanced strategy to treat multiple solid tumours with individualized cancer immunotherapy techniques.
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Affiliation(s)
- Meihua Chen
- Department of Radiation Oncology, School of Medicine, Sichuan Cancer Hospital and Institute, Sichuan Cancer Center, University of Electronic Science and Technology of China, Chengdu, China.,Radiation Oncology Key Laboratory of Sichuan Province, Chengdu, China
| | - Guangchao Xu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, China.,Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Ming Fan
- Department of Radiation Oncology, School of Medicine, Sichuan Cancer Hospital and Institute, Sichuan Cancer Center, University of Electronic Science and Technology of China, Chengdu, China.,Radiation Oncology Key Laboratory of Sichuan Province, Chengdu, China
| | - Hongyuan Jia
- Department of Radiation Oncology, School of Medicine, Sichuan Cancer Hospital and Institute, Sichuan Cancer Center, University of Electronic Science and Technology of China, Chengdu, China.,Radiation Oncology Key Laboratory of Sichuan Province, Chengdu, China
| | - Ling Xiao
- Department of Radiation Oncology, School of Medicine, Sichuan Cancer Hospital and Institute, Sichuan Cancer Center, University of Electronic Science and Technology of China, Chengdu, China.,Radiation Oncology Key Laboratory of Sichuan Province, Chengdu, China
| | - Jinyi Lang
- Department of Radiation Oncology, School of Medicine, Sichuan Cancer Hospital and Institute, Sichuan Cancer Center, University of Electronic Science and Technology of China, Chengdu, China.,Radiation Oncology Key Laboratory of Sichuan Province, Chengdu, China
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4
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de la Fuente-Herreruela D, Monnappa AK, Muñoz-Úbeda M, Morallón-Piña A, Enciso E, Sánchez L, Giusti F, Natale P, López-Montero I. Lipid-peptide bioconjugation through pyridyl disulfide reaction chemistry and its application in cell targeting and drug delivery. J Nanobiotechnology 2019; 17:77. [PMID: 31226993 PMCID: PMC6587267 DOI: 10.1186/s12951-019-0509-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Accepted: 06/10/2019] [Indexed: 12/03/2022] Open
Abstract
Background The design of efficient drug delivery vectors requires versatile formulations able to simultaneously direct a multitude of molecular targets and to bypass the endosomal recycling pathway of cells. Liposomal-based vectors need the decoration of the lipid surface with specific peptides to fulfill the functional requirements. The unspecific binding of peptides to the lipid surface is often accompanied with uncontrolled formulations and thus preventing the molecular mechanisms of a successful therapy. Results We present a simple synthesis pathway to anchor cysteine-terminal peptides to thiol-reactive lipids for adequate and quantitative liposomal formulations. As a proof of concept, we have synthesized two different lipopeptides based on (a) the truncated Fibroblast Growth Factor (tbFGF) for cell targeting and (b) the pH sensitive and fusogenic GALA peptide for endosomal scape. Conclusions The incorporation of these two lipopeptides in the liposomal formulation improves the fibroblast cell targeting and promotes the direct delivery of cargo molecules to the cytoplasm of the cell. Electronic supplementary material The online version of this article (10.1186/s12951-019-0509-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Diego de la Fuente-Herreruela
- Dto. Química Física, Universidad Complutense de Madrid, Avenida Complutense s/n, 28040, Madrid, Spain.,Instituto de Investigación Hospital Doce de Octubre (i+12), Avenida de Córdoba s/n, 28041, Madrid, Spain
| | - Ajay K Monnappa
- Department of Biological Sciences, School of Life Sciences, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 689-798, Republic of Korea
| | - Mónica Muñoz-Úbeda
- Instituto de Investigación Hospital Doce de Octubre (i+12), Avenida de Córdoba s/n, 28041, Madrid, Spain
| | - Aarón Morallón-Piña
- Dto. Química Física, Universidad Complutense de Madrid, Avenida Complutense s/n, 28040, Madrid, Spain
| | - Eduardo Enciso
- Dto. Química Física, Universidad Complutense de Madrid, Avenida Complutense s/n, 28040, Madrid, Spain
| | - Luis Sánchez
- Dto. Química Orgánica, Universidad Complutense de Madrid, Avenida Complutense s/n, 28040, Madrid, Spain
| | - Fabrice Giusti
- Institut de Chimie Séparative de Marcoule, ICSM, UMR 5257, Site de Marcoule-Bât, 426 BP 17 171, 30207, Bagnols sur Ceze, France
| | - Paolo Natale
- Dto. Química Física, Universidad Complutense de Madrid, Avenida Complutense s/n, 28040, Madrid, Spain.,Instituto de Investigación Hospital Doce de Octubre (i+12), Avenida de Córdoba s/n, 28041, Madrid, Spain
| | - Iván López-Montero
- Dto. Química Física, Universidad Complutense de Madrid, Avenida Complutense s/n, 28040, Madrid, Spain. .,Instituto de Investigación Hospital Doce de Octubre (i+12), Avenida de Córdoba s/n, 28041, Madrid, Spain.
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5
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Wagner SC, Ichim TE, Bogin V, Min WP, Silva F, Patel AN, Kesari S. Induction and characterization of anti-tumor endothelium immunity elicited by ValloVax therapeutic cancer vaccine. Oncotarget 2018; 8:28595-28613. [PMID: 28404894 PMCID: PMC5438675 DOI: 10.18632/oncotarget.15563] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Accepted: 01/24/2017] [Indexed: 12/22/2022] Open
Abstract
ValloVax is a placental endothelium derived vaccine which induces tissue-nonspecific antitumor immunity by blocking tumor angiogesis. To elucidate mechanisms of action, we showed that production of ValloVax, which involves treating placental endothelial cells with IFN-gamma, results in upregulation of HLA and costimulatory molecules. It was shown that in mixed lymphocyte reaction, ValloVax induces Type I cytokines and allo-proliferative responses. Plasma from ValloVax immunized mice was capable of killing in vitro tumor-like endothelium but not control endothelium. Using defined antigens associated with tumor endothelial cells, specific molecular entities were identified as being targeted by ValloVax induced antibodies. Binding of predominantly IgG antibodies to ValloVax cells was confirmed by flow cytometry. Further suggesting direct killing of tumor endothelial cells was expression of TUNEL positive cells, as well as, reduction in tumor oxygenation. Supporting a role for antibody mediated responses, cell depletion experiments suggested a predominant role of B cells in maintaining an intact anti-tumor endothelial response. Adoptive transfer experiments suggested that infusion of CD3+ T cells from immunized mice was sufficient to transfer tumor protection. Generation of memory T cells selective to tumor endothelial specific markers was observed. Functional confirmation of memory responses was observed in tumor rechallenge experiments. Furthermore, we observed that both PD-1 or CTLA-4 blockade augmented antitumor effects of ValloVax. These data suggest a T cell induced B cell mediated anti-tumor endothelial response and set the framework clinical trials through elucidation of mechanism of action.
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Affiliation(s)
| | | | | | - Wei-Ping Min
- Department of Immunology, University of Western Ontario, London, Ontario, Canada
| | - Francisco Silva
- Department of Surgery, University of Miami School of Medicine, Miami, FL, USA
| | - Amit N Patel
- Department of Surgery, University of Miami School of Medicine, Miami, FL, USA
| | - Santosh Kesari
- John Wayne Cancer Institute and Pacific Neuroscience Institute, Santa Monica, CA, USA
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6
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Kuo YC, Lee CH, Rajesh R. Recent advances in the treatment of glioblastoma multiforme by inhibiting angiogenesis and using nanocarrier systems. J Taiwan Inst Chem Eng 2017. [DOI: 10.1016/j.jtice.2017.04.034] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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7
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Nomura T, Hirata K, Shimaoka T, Yamakawa M, Koizumi N, Suzuki R, Maruyama K, Utoguchi N. Cancer Vaccine Therapy Using Tumor Endothelial Cells as Antigens Suppresses Solid Tumor Growth and Metastasis. Biol Pharm Bull 2017; 40:1661-1668. [DOI: 10.1248/bpb.b17-00145] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Tetsuya Nomura
- Faculty of Pharma-Sciences, Teikyo University
- Department of Pharmaceutics and Biopharmaceutics, Showa Pharmaceutical University
| | | | | | - Makie Yamakawa
- Department of Pharmaceutics and Biopharmaceutics, Showa Pharmaceutical University
| | - Naoya Koizumi
- Department of Pharmaceutics and Biopharmaceutics, Showa Pharmaceutical University
| | - Ryo Suzuki
- Faculty of Pharma-Sciences, Teikyo University
| | | | - Naoki Utoguchi
- Faculty of Pharma-Sciences, Teikyo University
- Department of Pharmaceutics and Biopharmaceutics, Showa Pharmaceutical University
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8
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Xu B, Jin Q, Zeng J, Yu T, Chen Y, Li S, Gong D, He L, Tan X, Yang L, He G, Wu J, Song X. Combined Tumor- and Neovascular-“Dual Targeting” Gene/Chemo-Therapy Suppresses Tumor Growth and Angiogenesis. ACS APPLIED MATERIALS & INTERFACES 2016; 8:25753-25769. [PMID: 27615739 DOI: 10.1021/acsami.6b08603] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Bei Xu
- State
Key Laboratory of Biotherapy/Geriatrics and Cancer Center, West China
Hospital, and Collaborative Innovation Center for Biotherapy, Sichuan University, Chengdu 610041, China
| | - Quansheng Jin
- State
Key Laboratory of Biotherapy/Geriatrics and Cancer Center, West China
Hospital, and Collaborative Innovation Center for Biotherapy, Sichuan University, Chengdu 610041, China
| | - Jun Zeng
- State
Key Laboratory of Biotherapy/Geriatrics and Cancer Center, West China
Hospital, and Collaborative Innovation Center for Biotherapy, Sichuan University, Chengdu 610041, China
| | - Ting Yu
- State
Key Laboratory of Biotherapy/Geriatrics and Cancer Center, West China
Hospital, and Collaborative Innovation Center for Biotherapy, Sichuan University, Chengdu 610041, China
| | - Yan Chen
- State
Key Laboratory of Biotherapy/Geriatrics and Cancer Center, West China
Hospital, and Collaborative Innovation Center for Biotherapy, Sichuan University, Chengdu 610041, China
| | - Shuangzhi Li
- State
Key Laboratory of Biotherapy/Geriatrics and Cancer Center, West China
Hospital, and Collaborative Innovation Center for Biotherapy, Sichuan University, Chengdu 610041, China
| | - Daoqiong Gong
- State
Key Laboratory of Biotherapy/Geriatrics and Cancer Center, West China
Hospital, and Collaborative Innovation Center for Biotherapy, Sichuan University, Chengdu 610041, China
| | - Lili He
- College
of Pharmacy, Southwest University for Nationalities, Chengdu 610041, China
| | - Xiaoyue Tan
- Department
of Pathology/Collaborative Innovation Center of Biotherapy, Medical School of Nankai University, Tianjin 300071, China
| | - Li Yang
- State
Key Laboratory of Biotherapy/Geriatrics and Cancer Center, West China
Hospital, and Collaborative Innovation Center for Biotherapy, Sichuan University, Chengdu 610041, China
| | - Gu He
- State
Key Laboratory of Biotherapy/Geriatrics and Cancer Center, West China
Hospital, and Collaborative Innovation Center for Biotherapy, Sichuan University, Chengdu 610041, China
| | - Jinhui Wu
- State
Key Laboratory of Biotherapy/Geriatrics and Cancer Center, West China
Hospital, and Collaborative Innovation Center for Biotherapy, Sichuan University, Chengdu 610041, China
| | - Xiangrong Song
- State
Key Laboratory of Biotherapy/Geriatrics and Cancer Center, West China
Hospital, and Collaborative Innovation Center for Biotherapy, Sichuan University, Chengdu 610041, China
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9
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Giacomini A, Chiodelli P, Matarazzo S, Rusnati M, Presta M, Ronca R. Blocking the FGF/FGFR system as a two-compartment antiangiogenic/antitumor approach in cancer therapy. Pharmacol Res 2016; 107:172-185. [DOI: 10.1016/j.phrs.2016.03.024] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Revised: 03/15/2016] [Accepted: 03/16/2016] [Indexed: 12/22/2022]
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10
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Wagner SC, Ichim TE, Ma H, Szymanski J, Perez JA, Lopez J, Bogin V, Patel AN, Marincola FM, Kesari S. Cancer anti-angiogenesis vaccines: Is the tumor vasculature antigenically unique? J Transl Med 2015; 13:340. [PMID: 26510973 PMCID: PMC4625691 DOI: 10.1186/s12967-015-0688-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2015] [Accepted: 10/03/2015] [Indexed: 12/19/2022] Open
Abstract
Angiogenesis is essential for the growth and metastasis of solid tumors. The tumor endothelium exists in a state of chronic activation and proliferation, fueled by the tumor milieu where angiogenic mediators are aberrantly over-expressed. Uncontrolled tumor growth, immune evasion, and therapeutic resistance are all driven by the dysregulated and constitutive angiogenesis occurring in the vasculature. Accordingly, great efforts have been dedicated toward identifying molecular signatures of this pathological angiogenesis in order to devise selective tumor endothelium targeting therapies while minimizing potential autoimmunity against physiologically normal endothelium. Vaccination with angiogenic antigens to generate cellular and/or humoral immunity against the tumor endothelium has proven to be a promising strategy for inhibiting or normalizing tumor angiogenesis and reducing cancer growth. Here we review tumor endothelium vaccines developed to date including active immunization strategies using specific tumor endothelium-associated antigens and whole endothelial cell-based vaccines designed to elicit immune responses against diverse target antigens. Among the novel therapeutic options, we describe a placenta-derived endothelial cell vaccine, ValloVax™, a polyvalent vaccine that is antigenically similar to proliferating tumor endothelium and is supported by pre-clinical studies to be safe and efficacious against several tumor types.
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Affiliation(s)
- Samuel C Wagner
- Batu Biologics Inc., Towne Center Drive, San Diego, CA, 92121, USA.
| | - Thomas E Ichim
- Batu Biologics Inc., Towne Center Drive, San Diego, CA, 92121, USA.
| | - Hong Ma
- Batu Biologics Inc., Towne Center Drive, San Diego, CA, 92121, USA.
| | - Julia Szymanski
- Batu Biologics Inc., Towne Center Drive, San Diego, CA, 92121, USA.
| | | | - Javier Lopez
- Pan Am Cancer Treatment Center, Tijuana, Mexico.
| | - Vladimir Bogin
- Batu Biologics Inc., Towne Center Drive, San Diego, CA, 92121, USA.
| | - Amit N Patel
- Department of Surgery, University of Utah, Salt Lake City, UT, USA.
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11
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Ronca R, Giacomini A, Rusnati M, Presta M. The potential of fibroblast growth factor/fibroblast growth factor receptor signaling as a therapeutic target in tumor angiogenesis. Expert Opin Ther Targets 2015; 19:1361-77. [PMID: 26125971 DOI: 10.1517/14728222.2015.1062475] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
INTRODUCTION Fibroblast growth factors (FGFs) are endowed with a potent pro-angiogenic activity. Activation of the FGF/FGF receptor (FGFR) system occurs in a variety of human tumors. This may lead to neovascularization, supporting tumor progression and metastatic dissemination. Thus, a compelling biologic rationale exists for the development of anti-FGF/FGFR agents for the inhibition of tumor angiogenesis in cancer therapy. AREAS COVERED A comprehensive search on PubMed was performed to identify studies on the role of the FGF/FGFR system in angiogenesis. Endothelial FGFR signaling, the pro-angiogenic function of canonical FGFs, and their role in human tumors are described. In addition, experimental approaches aimed at the identification and characterization of nonselective and selective FGF/FGFR inhibitors and their evaluation in clinical trials are summarized. EXPERT OPINION Different approaches can be envisaged to inhibit the FGF/FGFR system, a target for the development of 'two-compartment' anti-angiogenic/anti-tumor agents, including FGFR selective and nonselective small-molecule tyrosine kinase inhibitors, anti-FGFR antibodies, and FGF ligand traps. Further studies are required to define the correlation between tumor vascularization and activation of the FGF/FGFR system and for the identification of cancer patients more likely to benefit from anti-FGF/FGFR treatments. In addition, advantages and disadvantages about the use of selective versus non-selective FGF inhibitors remain to be elucidated.
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Affiliation(s)
- Roberto Ronca
- a University of Brescia, Department of Molecular and Translational Medicine , Brescia, Italy +39 030 371 7311 ;
| | - Arianna Giacomini
- a University of Brescia, Department of Molecular and Translational Medicine , Brescia, Italy +39 030 371 7311 ;
| | - Marco Rusnati
- a University of Brescia, Department of Molecular and Translational Medicine , Brescia, Italy +39 030 371 7311 ;
| | - Marco Presta
- a University of Brescia, Department of Molecular and Translational Medicine , Brescia, Italy +39 030 371 7311 ;
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12
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Wentink MQ, Huijbers EJM, de Gruijl TD, Verheul HMW, Olsson AK, Griffioen AW. Vaccination approach to anti-angiogenic treatment of cancer. Biochim Biophys Acta Rev Cancer 2015; 1855:155-71. [PMID: 25641676 DOI: 10.1016/j.bbcan.2015.01.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2014] [Revised: 01/16/2015] [Accepted: 01/22/2015] [Indexed: 02/07/2023]
Abstract
Improvement of patient survival by anti-angiogenic therapy has proven limited. A vaccination approach inducing an immune response against the tumor vasculature combines the benefits of immunotherapy and anti-angiogenesis, and may overcome the limitations of current anti-angiogenic drugs. Strategies to use whole endothelial cell vaccines and DNA- or protein vaccines against key players in the VEGF signaling axis, as well as specific markers of tumor endothelial cells, have been tested in preclinical studies. Current clinical trials are now testing the promise of this specific anti-cancer vaccination approach. This review will highlight the state-of-the-art in this exciting field of cancer research.
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Affiliation(s)
- Madelon Q Wentink
- Angiogenesis Laboratory, Department of Medical Oncology, VU University Medical Center, Amsterdam, the Netherlands
| | - Elisabeth J M Huijbers
- Angiogenesis Laboratory, Department of Medical Oncology, VU University Medical Center, Amsterdam, the Netherlands
| | - Tanja D de Gruijl
- Angiogenesis Laboratory, Department of Medical Oncology, VU University Medical Center, Amsterdam, the Netherlands
| | - Henk M W Verheul
- Angiogenesis Laboratory, Department of Medical Oncology, VU University Medical Center, Amsterdam, the Netherlands
| | - Anna-Karin Olsson
- Department of Medical Biochemistry and Microbiology, Uppsala University, Biomedical Center, Uppsala, Sweden
| | - Arjan W Griffioen
- Angiogenesis Laboratory, Department of Medical Oncology, VU University Medical Center, Amsterdam, the Netherlands.
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13
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Cavallo F, Aurisicchio L, Mancini R, Ciliberto G. Xenogene vaccination in the therapy of cancer. Expert Opin Biol Ther 2014; 14:1427-42. [DOI: 10.1517/14712598.2014.927433] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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14
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Bai FL, Yu YH, Tian H, Ren GP, Wang H, Zhou B, Han XH, Yu QZ, Li DS. Genetically engineered Newcastle disease virus expressing interleukin-2 and TNF-related apoptosis-inducing ligand for cancer therapy. Cancer Biol Ther 2014; 15:1226-38. [PMID: 24971746 DOI: 10.4161/cbt.29686] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Recombinant Newcastle disease virus (rNDV) have shown oncolytic therapeutic efficacy in preclinical studies and are currently in clinical trials. In this study, we have evaluated the possibility to enhance the cancer therapeutic potential of NDV by means of inserting both interleukin-2 (IL-2) and tumor necrosis factor-related apoptosis inducing ligand (TRAIL) delivered by rNDV. We demonstrated that rNDV expressing TRAIL (rNDV-TRAIL) or both human IL-2 and TRAIL (rNDV-IL-2-TRAIL) significantly enhanced inherent anti-neoplastic of rNDV by inducing apoptosis. And we showed that apoptosis-related genes mRNA expression was increased after treated with rNDV-TRAIL or rNDV-IL-2-TRAIL compared with rNDV and rNDV-IL-2. We also demonstrated that both rNDV-IL-2 and rNDV-IL-2-TRAIL induced proliferation of the CD4(+) and CD8(+) in treated mice and elicited expression of TNF-α and IFN-γ antitumor cytokines. These mice treated with oncolytic agents exhibited significant reduction in tumor development compared with mice treated with the parental virus. In addition, experiments in both hepatocellular carcinoma and melanoma-bearing mice demonstrated that the genetically engineered rNDV-IL-2-TRAIL exhibited prolonged animals' survival compared with rNDV, rNDV-IL-2, and rNDV-TRAIL. In conclusion, the immunotherapy and oncolytic virotherapy properties of NDV can be enhanced by the introduction of IL-2 and TRAIL genes, whose products initiated a broad cascade of immunological affects and induced tumor cells apoptosis in the microenvironment of the immune system.
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Affiliation(s)
- Fu-Liang Bai
- Biopharmaceutical Teaching and Research Department; College of Life Science; Northeast Agricultural University; Harbin, China
| | - Yin-Hang Yu
- Biopharmaceutical Teaching and Research Department; College of Life Science; Northeast Agricultural University; Harbin, China
| | - Hui Tian
- Biopharmaceutical Teaching and Research Department; College of Life Science; Northeast Agricultural University; Harbin, China
| | - Gui-Ping Ren
- Biopharmaceutical Teaching and Research Department; College of Life Science; Northeast Agricultural University; Harbin, China
| | - Hui Wang
- Biopharmaceutical Teaching and Research Department; College of Life Science; Northeast Agricultural University; Harbin, China
| | - Bing Zhou
- Biopharmaceutical Teaching and Research Department; College of Life Science; Northeast Agricultural University; Harbin, China
| | - Xiao-Hui Han
- Biopharmaceutical Teaching and Research Department; College of Life Science; Northeast Agricultural University; Harbin, China
| | - Qing-Zhong Yu
- USDA-ARS; Southeast Poultry Research Laboratory; Athens, GA USA
| | - De-Shan Li
- Biopharmaceutical Teaching and Research Department; College of Life Science; Northeast Agricultural University; Harbin, China; Biopharmaceutical Teaching and Research Department; College of Life Science; Northeast Agricultural University; Harbin, China
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15
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Sphingosine-1-phosphate induces VEGF-C expression through a MMP-2/FGF-1/FGFR-1-dependent pathway in endothelial cells in vitro. Acta Pharmacol Sin 2013; 34:360-6. [PMID: 23377549 DOI: 10.1038/aps.2012.186] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
AIM To investigate whether sphingosine-1-phosphate (S1P), a potent angiogenic factor, induced vascular endothelial growth factor-C (VEGF-C) expression in endothelial cells in vitro and to examine its underlying mechanisms. METHODS Human umbilical vein endothelial cells (HUVECs) were examined. VEGF-C mRNA expression in the cells was assessed using real-time PCR. VEGF-C protein and FGFR-1 phosphorylation in the cells were measured with ELISA. RNA interference was used to downregulate the expression of matrix metalloproteinase-2 (MMP-2), fibroblast growth factor-1 (FGF-1) and FGF receptor-1 (FGFR-1). RESULTS Incubation of HUVECs with S1P (1, 5, and 10 μmol/L) significantly increased VEGF-C expression. The effect was blocked by pretreatment with the MMP inhibitor GM6001 or the FGFR inhibitor SU5402, but not the EGFR inhibitor AG1478. The effect was also blocked in HUVECs that were transfected with FGFR-1 or MMP-2 siRNA. Furthermore, incubation of HUVECs with S1P (5 μmol/L) significantly increased FGFR-1 phosphorylation, which was blocked by GM6001. Moreover, knockdown of FGF-1, not FGF-2, in HUVECs with siRNAs, blocked S1P-induced VEGF-C expression. CONCLUSION S1P induces VEGF-C expression through a MMP-2/ FGF-1/FGFR-1-dependent pathway in HUVECs.
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16
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Cai L, Wang X, Wang W, Qiu N, Wen J, Duan X, Li X, Chen X, Yang L, Qian Z, Wei Y, Chen L. Peptide ligand and PEG-mediated long-circulating liposome targeted to FGFR overexpressing tumor in vivo. Int J Nanomedicine 2012; 7:4499-510. [PMID: 22923988 PMCID: PMC3423151 DOI: 10.2147/ijn.s32817] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Background and methods Paclitaxel, a widely used antitumor agent, has limited clinical application due to its hydrophobicity and systemic toxicity. To achieve sustained and targeted delivery of paclitaxel to tumor sites, liposomes composed of egg phosphatidylcholine, cholesterol, and distearolyphosphatidyl ethanolamine-N-poly(ethylene glycol) (PEG2000) were prepared by a lipid film method. In addition, the liposomes also contained truncated fibroblast growth factor fragment-PEG-cholesterol as a ligand targeting the tumor marker fibroblast growth factor receptor. Physicochemical characteristics, such as particle size, zeta potential, entrapment efficiency, and release profiles were investigated. Pharmacokinetics and biodistribution were evaluated in C57BL/6 J mice bearing B16 melanoma after intravenous injection of paclitaxel formulated in Cremophor EL (free paclitaxel), conventional liposomes (CL-PTX), or in targeted PEGylated liposomes (TL-PTX). Results Compared with CL-PTX and free paclitaxel, TL-PTX prolonged the half-life of paclitaxel by 2.01-fold and 3.40-fold, respectively, in plasma and improved the AUC0→t values of paclitaxel by 1.56-fold and 2.31-fold, respectively, in blood. Biodistribution studies showed high accumulation of TL-PTX in tumor tissue and organs containing the mononuclear phagocyte system (liver and spleen), but a considerable decrease in other organs (heart, lung, and kidney) compared with CL-PTX and free paclitaxel. Conclusion The truncated fibroblast growth factor fragment-conjugated PEGylated liposome has promising potential as a long-circulating and tumor-targeting carrier system.
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Affiliation(s)
- Lulu Cai
- State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, Sichuan, China
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17
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Liu P, Gou M, Yi T, Qi X, Xie C, Zhou S, Deng H, Wei Y, Zhao X. The enhanced antitumor effects of biodegradable cationic heparin-polyethyleneimine nanogels delivering HSulf-1 gene combined with cisplatin on ovarian cancer. Int J Oncol 2012; 41:1504-12. [PMID: 22825572 DOI: 10.3892/ijo.2012.1558] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2012] [Accepted: 06/19/2012] [Indexed: 11/06/2022] Open
Abstract
HSulf-1 (heparan sulfate 6-O-endosulfatase 1), a commonly downregulated gene in the majority of ovarian cancer cell lines, has been identified to play an important role in regulating tumorigenesis. Our previous studies demonstrated that HSulf-1 could inhibit angiogenesis and tumorigenesis in vivo. The employment of polymeric nanoparticles to deliver functional gene holds much promise as an effective therapeutic strategy against ovarian cancer. To develop more effective therapy, in this study, we investigated the antitumor effect of heparin-polyethyleneimine (HPEI) nanogels delivering HSulf-1 combined with cisplatin (DDP) on ovarian cancer. Expression of HSulf-1 in vitro and in vivo was determined by reverse transcription polymerase chain reaction (RT-PCR) and western blot analysis. A SKOV3 intraperitoneal ovarian carcinomatosis model in nude mice was established to assess the antitumor efficacy. Mice were treated with NS, pEP/HPEI complexes, pHSulf-1/HPEI complexes, DDP or pHSulf-1/HPEI plus DDP, respectively. Intraperitoneal tumors were weighed. Antiangiogenic effect in vivo was evaluated by CD31 immunostaining and alginate-encapsulate tumor cell assay. Detection of the proliferative cells and apoptotic cells in tumor tissues were performed by Ki-67 staining and TUNEL assay. Stable expression of HSulf-1 was detected in the pHSulf-1/HPEI and pHSulf-1/HPEI plus DDP groups. The combination of pHSulf-1/HPEI complexes with DDP exhibited enhanced antitumor activity, compared with the monotherapy of HSulf-1 or DDP alone (P<0.01). the combination therapy exerted significant antitumor activity through enhanced antiangiogenesis, induction of apoptosis and suppression of cell proliferation. Collectively, these observations provide evidence that HPEI nanogels delivering HSulf-1 combined with DDP may have a promising application in the therapy of human ovarian cancer.
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Affiliation(s)
- Ping Liu
- Department of Gynecology and Obstetrics, Key Laboratory of Obstetric and Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, West China Second Hospital, State Key Laboratory of Biotherapy and Cancer Center, Sichuan University, Chengdu 610041, Sichuan, P.R. China
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18
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Ding ZY, Zou XL, Wei YQ. Cancer microenvironment and cancer vaccine. CANCER MICROENVIRONMENT 2012; 5:333-44. [PMID: 22562695 DOI: 10.1007/s12307-012-0107-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2012] [Accepted: 04/03/2012] [Indexed: 02/05/2023]
Abstract
The cancer microenvironment is constituted of non-transformed host stromal cells such as endothelial cells, fibroblasts, various immune cells, and a complex extra-cellular matrix secreted by both the normal and neoplastic cells embedded in it. The importance of the microenvironment and its potential in cancer therapy is just being established. Among modalities that target the microenvironment, cancer vaccine is a unique strategy which is aimed to elicit specific immunity against components in the microenvironment. Most, if not all, components can be targeted by the vaccines. The most extensively studied are the endothelial cells, fibroblasts and macrophages as well as ECM. Vaccines are in development for each of them. All the vaccines were proved to be effective at providing protective or therapeutic anti-tumor effects in the pre-clinical models. A few of them have been tested in the clinical trials. The mechanisms of the vaccines were mainly related to the cellular immune response such as CD8+ cytotoxic T cells, and in some instances CD4+ Th cells were involved as well. The present review also discussed the hurdles associated with the microenvironment-based vaccines such as the selection of suitable patients with appropriate biomarkers. With the rapid increase of our knowledge in the cancer microenvironment, the proof-of-concept of microenvironment-based cancer vaccines will surely expand our armamentarium against cancer.
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Affiliation(s)
- Zhen-Yu Ding
- Cancer Center, West China Hospital, West China Medical School, State Key Laboratory of Biotherapy, Sichuan Univerisity, Guoxue Lane 37, Chengdu, 610041, China
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19
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WANG LIQIANG, ZHANG JING, CAI LULU, WEN JING, SHI HUASHAN, LI DAN, GUO FUCHUN, WANG YONGSHENG. Liposomal curcumin inhibits Lewis lung cancer growth primarily through inhibition of angiogenesis. Oncol Lett 2012. [DOI: 10.3892/ol.2012.686] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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20
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Control of tumor and microenvironment cross-talk by miR-15a and miR-16 in prostate cancer. Oncogene 2011; 30:4231-42. [PMID: 21532615 DOI: 10.1038/onc.2011.140] [Citation(s) in RCA: 221] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The interaction between cancer cells and microenvironment has a critical role in tumor development and progression. Although microRNAs regulate all the major biological mechanisms, their influence on tumor microenvironment is largely unexplored. Here, we investigate the role of microRNAs in the tumor-supportive capacity of stromal cells. We demonstrated that miR-15 and miR-16 are downregulated in fibroblasts surrounding the prostate tumors of the majority of 23 patients analyzed. Such downregulation of miR-15 and miR-16 in cancer-associated fibroblasts (CAFs) promoted tumor growth and progression through the reduced post-transcriptional repression of Fgf-2 and its receptor Fgfr1, which act on both stromal and tumor cells to enhance cancer cell survival, proliferation and migration. Moreover, reconstitution of miR-15 and miR-16 impaired considerably the tumor-supportive capability of stromal cells in vitro and in vivo. Our data suggest a molecular circuitry in which miR-15 and miR-16 and their correlated targets cooperate to promote tumor expansion and invasiveness through the concurrent activity on stromal and cancer cells, thus providing further support to the development of therapies aimed at reconstituting miR-15 and miR-16 in advanced prostate cancer.
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21
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Cai L, Qiu N, Li X, Luo K, Chen X, Yang L, He G, Wei Y, Chen L. A novel truncated basic fibroblast growth factor fragment-conjugated poly (ethylene glycol)-cholesterol amphiphilic polymeric drug delivery system for targeting to the FGFR-overexpressing tumor cells. Int J Pharm 2011; 408:173-82. [DOI: 10.1016/j.ijpharm.2011.01.042] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2010] [Revised: 01/18/2011] [Accepted: 01/21/2011] [Indexed: 10/18/2022]
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22
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Tong QY, Qing Y, Shu D, He Y, Zhao YL, Li Y, Wang ZL, Zhang SY, Xing ZH, Xu C, Wei YQ, Huang W, Wu XH. Deltonin, a steroidal saponin, inhibits colon cancer cell growth in vitro and tumor growth in vivo via induction of apoptosis and antiangiogenesis. Cell Physiol Biochem 2011; 27:233-42. [PMID: 21471712 DOI: 10.1159/000327949] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/24/2011] [Indexed: 02/05/2023] Open
Abstract
Deltonin, a steroidal saponin, isolated from Dioscorea zingiberensis Wright (DZW), has shown high-cytotoxic activity in cancer cells. However, its mechanisms and in vivo anti-cancer effects remain unknown. In the present study, we evaluated the effects and explored the anti-tumor mechanisms of deltonin on a panel of colon cancer cell lines and in a mouse model of murine colon cancer C26. Deltonin had more cytotoxic effect on C26 cells than 5-fluorouracil had, promoting dramatic G2-M phase arrest and apoptosis in C26 cells in a concentration-dependent manner; oral administration of deltonin significantly inhibited the tumor growth and prolonged survival of the tumor bearing mice. The deltonin treatment caused a noticeable apoptosis in tumor tissue, which associated with increased levels of Bax, activated caspase-3, caspase-9, and cleaved poly (ADPribose) polymerase, decreased pro-caspase-8, pro-caspase-9, Bcl-2 expression levels and extracellular signal-regulated kinase-1/2 activity; and dose-dependently inhibit angiogenesis. In conclusion, the findings in this study demonstrated that deltonin is an effective natural agent for cancer therapy, which may be mediated, in part, by induction of apoptosis, as well as involve mitogen-activated protein kinase pathways, and inhibition of angiogenesis.
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Affiliation(s)
- Qing-Yi Tong
- Laboratory of Ethnopharmacology, Regenerative Medicine Research Center, and State Key Laboratory of Biotherapy, West China Hospital, Chengdu, China
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23
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Matejuk A, Leng Q, Chou ST, Mixson AJ. Vaccines targeting the neovasculature of tumors. Vasc Cell 2011; 3:7. [PMID: 21385454 PMCID: PMC3061948 DOI: 10.1186/2045-824x-3-7] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2010] [Accepted: 03/08/2011] [Indexed: 01/04/2023] Open
Abstract
Angiogenesis has a critical role in physiologic and disease processes. For the growth of tumors, angiogenesis must occur to carry sufficient nutrients to the tumor. In addition to growth, development of new blood vessels is necessary for invasion and metastases of the tumor. A number of strategies have been developed to inhibit tumor angiogenesis and further understanding of the interplay between tumors and angiogenesis should allow new approaches and advances in angiogenic therapy. One such promising angiogenic approach is to target and inhibit angiogenesis with vaccines. This review will discuss recent advances and future prospects in vaccines targeting aberrant angiogenesis of tumors. The strategies utilized by investigators have included whole endothelial cell vaccines as well as vaccines with defined targets on endothelial cells and pericytes of the developing tumor endothelium. To date, several promising anti-angiogenic vaccine strategies have demonstrated marked inhibition of tumor growth in pre-clinical trials with some showing no observed interference with physiologic angiogenic processes such as wound healing and fertility.
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Affiliation(s)
- Agata Matejuk
- Department of Pathology, University of Maryland Baltimore, MSTF Building, 10 South Pine Street, Baltimore, MD 21201, USA.
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24
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Lai QG, Jiang BQ, Zhou XH, Xu X, Gao ZN, Yuan KF. The effects and mechanism of xenogeneic adipocyte vaccine for the prevention of obesity in rats. J Int Med Res 2011; 38:1700-7. [PMID: 21309484 DOI: 10.1177/147323001003800515] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
The objectives of this study were to observe the effects of immunization with mouse mature adipocytes for the prevention of obesity in rats and to investigate their mechanism of action. Mouse mature adipocytes (3T3-L1) were injected as a vaccine into the abdominal cavity of rats. Control rats were injected with fibroblast cell lines (MRC-5 or NIH/3T3) or with 0.9% saline. Rats were fed a high calorie diet and body weight changes were used to evaluate obesity prevention. Immunohistochemical and immunofluorescence assays were used to investigate the mechanism of action. Results showed that obesity in rats can be prevented by immunization with xenogeneic mature mouse adipocytes. Body weight gain was inhibited in rats in the treatment group but not in the control groups and was statistically significant between the groups over the 19-week observation period. The assays demonstrated the presence of autoantibodies in rat adipocytes. It was concluded that vaccines of xenogeneic adipocytes can effectively prevent obesity in rats.
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Affiliation(s)
- Q G Lai
- Department of Oral and Maxillofacial Surgery, The Second Hospital of Shandong University, Jinan, China
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25
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Antiangiogenic Activity of a Neutralizing Human Single-Chain Antibody Fragment against Fibroblast Growth Factor Receptor 1. Mol Cancer Ther 2010; 9:3244-53. [DOI: 10.1158/1535-7163.mct-10-0417] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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26
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Yang HS, Zhang DM, Deng HX, Peng F, Wei YQ. Antitumor and anti-angiogenesis immunity induced by CR-SEREX-identified Xenopus RHAMM. Cancer Sci 2010; 101:862-8. [PMID: 20704574 PMCID: PMC11159049 DOI: 10.1111/j.1349-7006.2009.01473.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2009] [Revised: 11/24/2009] [Accepted: 12/03/2009] [Indexed: 02/05/2023] Open
Abstract
Immunization with xenogeneic antigens is an attractive approach to induce cross-reactive humoral and cellular immunity to inhibit tumor growth or angiogenesis. To identify novel xenogenic targets for immunotherapy, we have developed a modified serological expression cloning (SEREX) strategy, termed Cross-reactive SEREX (CR-SEREX). Among 78 positive clones identified by CR-SEREX, Xenopus receptor for hyaluronic-acid-mediated motility (xRHAMM) was most frequently identified (18 times), indicating the strongest immunogenic potential for xenogenic immunotherapy. A DNA vaccine based on xRHAMM effectively induced a protective antitumor immunity against local tumor and lung metastasis in B16 melanoma mouse models. Angiogenesis was inhibited and cell apoptosis was increased within tumors. Antitumor activity of xRHAMM worked through stimulation of an antigen-specific cellular response as well as through a specific humoral response against RHAMM, as confirmed by the depletion of immune cell subsets in vivo. Thus, a xenogenic vaccine based on xRHAMM induced an effective immunity against B16 melanoma cells and endothelial cells.
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MESH Headings
- Animals
- Antigens, Heterophile/immunology
- Cancer Vaccines/immunology
- Cancer Vaccines/therapeutic use
- Cloning, Molecular
- Cross Reactions/immunology
- Hyaluronan Receptors/immunology
- Immunity, Cellular/immunology
- Melanoma, Experimental/blood supply
- Melanoma, Experimental/immunology
- Melanoma, Experimental/therapy
- Mice
- Neovascularization, Pathologic/immunology
- Vaccines, DNA/genetics
- Vaccines, DNA/immunology
- Vaccines, DNA/therapeutic use
- Xenopus laevis/genetics
- Xenopus laevis/immunology
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Affiliation(s)
- Han Shuo Yang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu, China.
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27
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Xu Y, Zhang SZ, Huang CH, Liu XY, Zhong ZH, Hou WL, Su ZF, Wei YQ. Keratin 17 identified by proteomic analysis may be involved in tumor angiogenesis. BMB Rep 2009; 42:344-9. [PMID: 19558792 DOI: 10.5483/bmbrep.2009.42.6.344] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Angiogenesis is crucial for solid tumor growth. By secreting angiogenic factors, tumor cells induce angiogenesis. However, targeting these angiogenic factors for cancer therapy is not always successful, suggesting that other factors may be involved in tumor angiogenesis. This work shows that 25 protein spots were differentially expressed by two-dimensional gel electrophoretic analysis when HepG2 cells induced endothelial cell differentiation to tube in vitro, and most of them were upregulated. Twenty-one proteins were identified with MALDI-TOF-MS, and the other four were identified by LTQ-MS/MS. Keratins were identified as one class of these upregulated proteins. Further study indicated that the expression of keratin 17 in cultured endothelial cells is likely microenvironment regulated, because its expression can be induced by HepG2 cells and bFGF as well as serum in culture media. Increased expression of keratins in endothelial cells, such as keratin 17, may contribute to the angiogenesis induced by HepG2 cells.
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Affiliation(s)
- Yong Xu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School and School of Life Science, Sichuan University, Chengdu, 610041, P. R. China
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28
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Lysyl oxidase propeptide inhibits prostate cancer cell growth by mechanisms that target FGF-2-cell binding and signaling. Oncogene 2009; 28:3390-400. [PMID: 19597471 PMCID: PMC2753565 DOI: 10.1038/onc.2009.203] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Enhanced RAS signaling and decreased androgen dependence of prostate cancer cells accompany poor clinical outcomes. Elevated autocrine FGF-2 signaling promotes prostate cancer cell growth and survival. Expression of lysyl oxidase (LOX) inhibits RAS transforming activity. LOX is secreted as 50 kDa pro-lysyl oxidase protein and then undergoes extracellular proteolytic processing to form ~30 kDa lysyl oxidase enzyme and ~18 kDa pro-peptide (LOX-PP). We have previously shown that LOX-PP inhibits breast cancer cell transformation and tumor formation, but mechanisms of action of LOX-PP have not been fully elucidated. Here we report that LOX expression is reduced in prostate cancer cell lines and that recombinant LOX-PP protein inhibits serum-stimulated DNA synthesis and MEK/ERK and PI3K/AKT pathways in DU 145 and PC-3 androgen-independent cell lines. In DU 145 cells, treatment with a pharmacologic FGF-receptor inhibitor or a neutralizing anti-FGFR1 antibody mimicked LOX-PP inhibition of serum-stimulated DNA synthesis. FGF-2-stimulated DNA synthesis, ERK1/2, AKT, and FRS2α activation were found all to be inhibited by LOX-PP in DU 145 cells. LOX-PP reduced specific binding of FGF-2 to DU 145 cells, suggesting that LOX-PP targets FGF signaling at the receptor. Interestingly, PC-3 cells did not respond to FGF-2, consistent with previous reports. We conclude that LOX-PP inhibits proliferation of DU 145 cells by interfering with FGFR(s) binding and signaling, and that LOX-PP has other mechanisms of action in PC-3 cells.
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29
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Tan GH, Li YN, Huang FY, Wang H, Bai RZ, Jang J. Combination of Recombinant Xenogeneic Endoglin DNA and Protein Vaccination Enhances Anti-tumor Effects. Immunol Invest 2009; 36:423-40. [PMID: 17691024 DOI: 10.1080/08820130701361103] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The immunization approaches with DNA vaccine priming and subsequent protein or peptide boosting has been widely tested in various models of infectious diseases. However, these approaches are seldom reported in the areas of cancer immunotherapy. In this study we combined endoglin plasmid DNA and recombinant protein as vaccines and used them to prime and boost, simultaneously, as a vaccine strategy. Our results showed that combination of endoglin DNA and protein vaccines could enhance both protective and therapeutic anti-tumor efficacy in both colon carcinoma and Lewis lung carcinoma models. Significant inhibition of tumor angiogenesis was found in the tumor tissues. The titers of autoantibodies against murine endoglin were significantly increased and the antibody levels lasted longer in the mice with combined endoglin DNA and recombinant protein vaccination. CTL response against endoglin-positive HUVECs, but not against endoglin-negative tumor cells was found in the mice combined DNA with protein vaccination. In addition, combination of endoglin DNA and recombinant protein vaccination significantly induced IFN-gamma secreting cells. These observations suggested that a combination of endoglin DNA and recombinant protein immunization as a vaccine strategy was superior to those using endoglin DNA or recombinant protein alone as vaccines.
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MESH Headings
- Animals
- Cancer Vaccines/immunology
- Cancer Vaccines/therapeutic use
- Carcinoma, Lewis Lung/blood supply
- Carcinoma, Lewis Lung/immunology
- Carcinoma, Lewis Lung/therapy
- Colorectal Neoplasms/blood supply
- Colorectal Neoplasms/immunology
- Colorectal Neoplasms/therapy
- Endoglin
- Immunization Schedule
- Interferon-gamma/immunology
- Interferon-gamma/metabolism
- Intracellular Signaling Peptides and Proteins/genetics
- Intracellular Signaling Peptides and Proteins/immunology
- Mice
- Mice, Inbred BALB C
- Mice, Inbred C57BL
- Neovascularization, Pathologic
- Recombinant Proteins/immunology
- T-Lymphocytes, Cytotoxic/immunology
- T-Lymphocytes, Cytotoxic/metabolism
- Vaccines, DNA/immunology
- Vaccines, DNA/therapeutic use
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Affiliation(s)
- Guang-Hong Tan
- Hainan Provincial Key Laboratory of Tropical Medicine, Hainan Medical College, Haikou, People's Republic of China.
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30
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Xie K, Bai RZ, Wu Y, Liu Q, Liu K, Wei YQ. Anti-tumor effects of a human VEGFR-2-based DNA vaccine in mouse models. GENETIC VACCINES AND THERAPY 2009; 7:10. [PMID: 19545394 PMCID: PMC3224891 DOI: 10.1186/1479-0556-7-10] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/13/2009] [Accepted: 06/21/2009] [Indexed: 02/05/2023]
Abstract
Background Vascular endothelial growth factor (VEGF) and its receptor, VEGFR-2 (Flk-1/KDR), play a key role in tumor angiogenesis. Blocking the VEGF-VEGFR-2 pathway may inhibit tumor growth. Here, we used human VEGFR-2 as a model antigen to explore the feasibility of immunotherapy with a plasmid DNA vaccine based on a xenogeneic homologue of this receptor. Methods The protective effects and therapeutic anti-tumor immunity mediated by the DNA vaccine were investigated in mouse models. Anti-angiogenesis effects were detected by immunohistochemical staining and the alginate-encapsulate tumor cell assay. The mechanism of action of the DNA vaccine was primarily explored by detection of auto-antibodies and CTL activity. Results The DNA vaccine elicited a strong, protective and therapeutic anti-tumor immunity through an anti-angiogenesis mechanism in mouse models, mediated by the stimulation of an antigen-specific response against mFlk-1. Conclusion Our study shows that a DNA vaccine based on a xenogeneic homologue plasmid DNA induced autoimmunity against VEGFR-2, resulting in inhibition of tumor growth. Such vaccines may be clinically relevant for cancer immunotherapy.
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Affiliation(s)
- Ke Xie
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Guo Xue Xiang, No 37, Chengdu, Sichuan 610041, PR China
| | - Rui-Zhen Bai
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Guo Xue Xiang, No 37, Chengdu, Sichuan 610041, PR China
| | - Yang Wu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Guo Xue Xiang, No 37, Chengdu, Sichuan 610041, PR China
| | - Quan Liu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Guo Xue Xiang, No 37, Chengdu, Sichuan 610041, PR China
| | - Kang Liu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Guo Xue Xiang, No 37, Chengdu, Sichuan 610041, PR China
| | - Yu-Quan Wei
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Guo Xue Xiang, No 37, Chengdu, Sichuan 610041, PR China
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31
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Yang LP, Cheng P, Peng XC, Shi HS, He WH, Cui FY, Luo ST, Wei YQ, Yang L. Anti-tumor effect of adenovirus-mediated gene transfer of pigment epithelium-derived factor on mouse B16-F10 melanoma. J Exp Clin Cancer Res 2009; 28:75. [PMID: 19500366 PMCID: PMC2700809 DOI: 10.1186/1756-9966-28-75] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2009] [Accepted: 06/05/2009] [Indexed: 02/08/2023] Open
Abstract
Background Angiogenesis plays an important role in tumor growth, invasion, and eventually metastasis. Antiangiogenic strategies have been proven to be a promising approach for clinical therapy for a variety of tumors. As a potent inhibitor of tumor angiogenesis, pigment epithelium-derived factor (PEDF) has recently been studied and used as an anticancer agent in several tumor models. Methods A recombined adenovirus carrying PEDF gene (Ad-PEDF) was prepared, and its expression by infected cells and in treated animals was confirmed with Western blotting and ELISA, respectively. Its activity for inhibiting human umbilical vein endothelial cell (HUVEC) proliferation was tested using the MTT assay. C57BL/6 mice bearing B16-F10 melanoma were treated with i.v. administration of 5 × 108 IU/mouse Ad-PEDF, or 5 × 108 IU/mouse Ad-Null, or normal saline (NS), every 3 days for a total of 4 times. Tumor volume and survival time were recorded. TUNEL, CD31 and H&E stainings of tumor tissue were conducted to examine apoptosis, microvessel density and histological morphology changes. Antiangiogenesis was determined by the alginate-encapsulated tumor cell assay. Results The recombinant PEDF adenovirus is able to transfer the PEDF gene to infected cells and successfully produce secretory PEDF protein, which exhibits potent inhibitory effects on HUVEC proliferation. Through inhibiting angiogenesis, reducing MVD and increasing apoptosis, Ad-PEDF treatment reduced tumor volume and prolonged survival times of mouse bearing B16-F10 melanoma. Conclusion Our data indicate that Ad-PEDF may provide an effective approach to inhibit mouse B16-F10 melanoma growth.
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Affiliation(s)
- Li-Ping Yang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Clinical Medicine School, Sichuan University, Chengdu, Sichuan, PR China.
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Characterization of a novel rat gene RTAP2a, screened by cross-reactive SEREX, restrictedly expressed in testis. J Biosci Bioeng 2009; 107:589-95. [DOI: 10.1016/j.jbiosc.2009.02.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2008] [Revised: 12/22/2008] [Accepted: 02/02/2009] [Indexed: 01/13/2023]
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Yuan Z, Yan F, Wang YS, Liu HY, Gou LT, Zhao XY, Lai ST, Deng HX, Li J, Ding ZY, Xiong SQ, Kan B, Mao YQ, Chen LJ, Wei YQ, Zhao X. PNAS-4, a novel pro-apoptotic gene, can potentiate antineoplastic effects of cisplatin. Cancer Chemother Pharmacol 2009; 65:13-25. [PMID: 19387645 DOI: 10.1007/s00280-009-0998-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2008] [Accepted: 04/03/2009] [Indexed: 02/05/2023]
Abstract
PURPOSE PNAS-4, a novel pro-apoptotic gene activated during the early response to DNA damage, can inhibit proliferation via apoptosis when overexpressed in some tumor cells. The objectives of this study were to determine whether PNAS-4 could enhance apoptosis induced by cisplatin besides its induction of apoptosis, and to evaluate the usefulness of combined treatment with mouse PNAS-4 (mPNAS-4) gene therapy and low-dose cisplatin chemotherapy in the inhibition of tumor growth in colon carcinoma (CT26) and Lewis lung carcinoma (LL/2) murine models. METHODS In this study, the in vitro growth-inhibitory and pro-apoptotic effects of PNAS-4 and/or cisplatin on CT26, LL/2, and SKOV3 cancer cells were assessed by MTT assay, flow cytometric analysis, DNA fragmentation, and morphological analysis, respectively. The in vivo antitumor activity of combined treatment with mPNAS-4 gene therapy and low-dose cisplatin were evaluated in the inhibition of tumor growth in colon carcinoma (CT26) and Lewis lung carcinoma (LL/2) murine models. Tumor volume and survival time were observed. Induction of apoptosis was also assessed in tumor tissues. RESULTS In vitro, PNAS-4 inhibited proliferation of colon carcinoma (CT26), Lewis lung carcinoma (LL/2) and human ovarian cancer (SKOV3) cell lines via apoptosis, and significantly enhanced the apoptosis of CT26, LL/2, and SKOV3 cells induced by cisplatin. In vivo systemic administration of expression plasmid encoding mPNAS-4 (pcDNA3.1-mPS) and cisplatin, significantly decreased tumor growth through increased tumor cell apoptosis compared to treatment with mPNAS-4 or cisplatin alone. CONCLUSIONS Our data suggests that the combined treatment with mPNAS-4 plus cisplatin may augment the induction of apoptosis in tumor cells in vitro and in vivo, and that the augmented antitumor activity in vivo may result from the increased induction of apoptosis. The present study may provide a novel way to augment the antitumor efficacy of cytotoxic chemotherapy.
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Affiliation(s)
- Zhu Yuan
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, 1# Keyuan Road 4, Gaopeng Street, High Technological Development Zone 610041, Chengdu, China
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Inhibition of B16 melanoma growth and metastasis in C57BL mice by vaccination with a syngeneic endothelial cell line. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2009; 28:13. [PMID: 19183492 PMCID: PMC2646687 DOI: 10.1186/1756-9966-28-13] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2008] [Accepted: 01/31/2009] [Indexed: 11/10/2022]
Abstract
Background Key role of angiogenesis in tumor growth and metastasis based on accumulating evidence and recent progress of immunotherapy have led us to investigate vaccine therapy targeting tumor angiogenesis. Methods C57BL/6J mice were vaccinated with a syngeneic endothelial cell line Tpit/E by subcutaneous injection once a week. Prior to ninth vaccination, the mice were challenged with B16/F10 melanoma cells by subcutaneous inoculation on the back for the tumor growth model or by tail venous injection for the lung metastasis model. Development of subcutaneous tumor and lung metastasis was monitored by computed tomography scanning, which enabled accurate evaluation with the minimized sacrifice of mice. Results Vaccination with Tpit/E cells inhibited subcutaneous tumor growth and appearance of lung metastasis compared to control. Survival period was elongated in the Tpit/E vaccination in both of the two models. We also obtained hybridomas secreting specific antibodies to Tpit/E cells from a mouse vaccinated with the cells, indicating that specific immune response to the syngeneic endothelial cells was elicited. Conclusion These results suggest that vaccination with an autologous endothelial cell line may be effective against melanoma.
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Pan J, Jin P, Yan J, Kabelitz D. Anti-angiogenic active immunotherapy: a new approach to cancer treatment. Cancer Immunol Immunother 2008; 57:1105-14. [PMID: 18214475 PMCID: PMC11030112 DOI: 10.1007/s00262-008-0452-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2007] [Accepted: 01/08/2008] [Indexed: 01/19/2023]
Abstract
Tumor angiogenesis plays an important role in tumor growth, aggression and metastasis. Many molecules have been demonstrated as positive regulators of angiogenesis, including vascular endothelial growth factor (VEGF), fibroblast growth factor (FGF), epidermal growth factor (EGF), and others. In recent years, significant progress has been made in the research on anti-angiogenic strategies for tumor therapies. In this review, anti-angiogenic active immunotherapies for tumors based on vaccination with xenogeneic homologous molecules and non-xenogeneic homologous molecules are discussed.
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Affiliation(s)
- Jianping Pan
- Department of Medical Microbiology and Parasitology, Zhejiang University School of Medicine, 388 Yuhangtang Road, Hangzhou, 310058, People's Republic of China.
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Sun Y, Song M, Jäger E, Schwer C, Stevanovic S, Flindt S, Karbach J, Nguyen XD, Schadendorf D, Cichutek K. Human CD4+ T lymphocytes recognize a vascular endothelial growth factor receptor-2-derived epitope in association with HLA-DR. Clin Cancer Res 2008; 14:4306-15. [PMID: 18594014 DOI: 10.1158/1078-0432.ccr-07-4849] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE Given the multiple escape mechanisms of tumor cells, immunotherapy targeting tumor-dependent stroma may be an effective cancer treatment strategy. Animal models indicate that inducing immunity to tumor endothelia engenders potent antitumor effects without significant pathology. Recently, the first human tumor endothelial antigen vascular endothelial growth factor receptor-2 (VEGFR-2) recognized by HLA class I-restricted CD8(+) T cells has been characterized. In this study, we sought to investigate specific recognition of this molecule by human CD4(+) T cells. EXPERIMENTAL DESIGN To identify HLA-DR-restricted antigenic peptides on VEGFR-2 recognized by CD4(+) T cells of healthy donors and cancer patients. RESULTS Nine candidate VEGFR-2 peptides with high binding probability to six common HLA-DRB1 alleles were synthesized using the SYFPEITHI algorithm. One 15-mer peptide (EKRFVPDGNRISWDS), mapping to the 167-181 region of VEGFR-2, stimulated CD4(+) T cells in association with several HLA-DR alleles, including DR4 and DR7. Importantly, the epitope could be naturally processed and presented both by HLA-DR-matched antigen-expressing proliferating endothelial cells and by dendritic cells loaded with the native antigen. Furthermore, circulating VEGFR-2-specific CD4(+) T cells were detected in 4 of 10 healthy donors and 12 of 40 cancer patients even after single-round peptide stimulation in short-term culture. Patient's T cells could recognize antigen-expressing proliferating endothelial cells in a HLA-DR-restricted fashion. CONCLUSION These findings indicate an important role for the 167-181 region of VEGFR-2 in the stimulation of CD4(+) T cell responses to VEGFR-2 protein, and may be instrumental both for the development and monitoring of upcoming antitumor vessel vaccines against different cancers based on VEGFR-2 immunogens.
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Affiliation(s)
- Yuansheng Sun
- Division of Medical Biotechnology, Paul-Ehrlich-Institute, Langen, Germany.
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Felicetti P, Mennecozzi M, Barucca A, Montgomery S, Orlandi F, Manova K, Houghton AN, Gregor PD, Concetti A, Venanzi FM. Tumor endothelial marker 8 enhances tumor immunity in conjunction with immunization against differentiation Ag. Cytotherapy 2008; 9:23-34. [PMID: 18236207 DOI: 10.1080/14653240601048369] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
BACKGROUND We have previously shown that xenogeneic DNA vaccines encoding rat neu and melanosomal differentiation Ag induce tumor immunity. Others have developed vaccines targeting tumor neovasculature. Tumor endothelial marker 8 (TEM8) is expressed in the neovasculature of human tumors, and in the mouse melanoma B16, but its expression is limited in normal adult tissues. We describe a DNA vaccine combining xenogeneic tumor Ag and TEM8. METHODS In-situ hybridization was used to detect TEM8 RNA in mouse tumors. Mice transgenic for the rat neu proto-oncogene were immunized with DNA vaccines encoding TEM8 and the extracellular domain of rat neu and challenged with the 233-VSGA1 breast cancer cell line. In parallel experiments, C57BL/6 mice were immunized with TEM8 and human tyrosinase-related protein 1 (hTYRP1/hgp75) and challenged with B16F10 melanoma. RESULTS TEM8 was expressed in the stroma of transplantable mouse breast and melanoma tumors. In both model systems, TEM8 DNA had no activity as a single agent but significantly enhanced the anti-tumor immunity of neu and hTYRP1/hgp75 DNA vaccines when given in concert. The observed synergy was dependent upon CD8+ T cells, as depletion of this cell population just prior to tumor challenge obviated the effect of the TEM8 vaccine in both tumor models. DISCUSSION A local immune response to TEM8 may increase inflammation or tumor necrosis within the tumor, resulting in improved Ag presentation of HER2/neu and hTYRP1/hgp75. Alternatively, TEM8 expression in host APC may alter T-cell interactions or homing. In this way, TEM8 may act more as an adjuvant than an immunologic target.
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Affiliation(s)
- P Felicetti
- Swim Across America Laboratory of Tumor Immunology, Memorial Sloan-Kettering Cancer Center, New York, USA
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Immunotherapy of Angiogenesis with DNA Vaccines. Angiogenesis 2008. [DOI: 10.1007/978-0-387-71518-6_39] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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39
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Wang YS, Wang GQ, Wen YJ, Wang L, Chen XC, Chen P, Kan B, Li J, Huang C, Lu Y, Zhou Q, Xu N, Li D, Fan LY, Yi T, Wu HB, Wei YQ. Immunity against Tumor Angiogenesis Induced by a Fusion Vaccine with Murine β-Defensin 2 and mFlk-1. Clin Cancer Res 2007; 13:6779-87. [PMID: 18006780 DOI: 10.1158/1078-0432.ccr-07-1587] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Yong-sheng Wang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Guo Xue Xiang No. 37, Chengdu, Sichuan, People's Republic of China
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Tan GH, Su JM, Wang CC, Huang FY, Wang H, Huang YH, Lin YY. A recombinant DNA plasmid encoding the human interleukin-5 breaks immunological tolerance and inhibits airway inflammation in a murine model of asthma. Int Arch Allergy Immunol 2007; 145:313-23. [PMID: 18004073 DOI: 10.1159/000110890] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2007] [Accepted: 07/19/2007] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Eosinophils play a pivotal role in the generation of asthma inflammation. Interleukin (IL)-5 is the major activator of eosinophils. We hypothesize that modulating IL-5 activity could be an effective strategy for asthma therapy. In this study, we tested whether the plasmid encoding human IL-5 as a xenogeneic DNA vaccine could induce the production of autoantibodies, and be used for asthma treatment. METHODS A eukaryotic plasmid encoding the human IL-5 was constructed, and used as a DNA vaccine. A mouse model of asthma was established to observe its antiasthma activities. Eosinophils in tissue, blood and the bronchoalveolar lavage were stained and counted. Airway hyperresponsiveness (AHR) was determined by whole body plethysmography. Antibody characters and cytokines were detected with immunological methods. RESULTS Immunization with a plasmid encoding the human IL-5 as DNA vaccine reduced airway inflammation, reversed Th2 cytokines, and decreased AHR in mice. In addition, this immunization induced the production of polyclonal antibodies that were cross-reactive with native murine IL-5, and IgG1 and IgG2a were the major subclasses. Adoptive transfer of the purified antibodies from the sera of mice immunized with the plasmid encoding the human IL-5 resulted in similar antiasthma effects. CONCLUSIONS Our results suggest that active vaccination against IL-5 may be a rational therapeutic approach for the treatment of asthma and potentially other eosinophilic disorders.
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Affiliation(s)
- Guang-Hong Tan
- Hainan Provincial Key Laboratory of Tropical Medicine, Hainan Medical College, Haikou, China.
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41
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Suckow MA, Rosen ED, Wolter WR, Sailes V, Jeffrey R, Tenniswood M. Prevention of human PC-346C prostate cancer growth in mice by a xenogeneic tissue vaccine. Cancer Immunol Immunother 2007; 56:1275-83. [PMID: 17242926 PMCID: PMC11030191 DOI: 10.1007/s00262-006-0278-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2006] [Accepted: 12/21/2006] [Indexed: 01/20/2023]
Abstract
Vaccination, as an approach to prostate cancer, has largely focused on immunotherapy utilizing specific molecules or allogeneic cells. Such methods are limited by the focused antigenic menu presented to the immune system and by immunotolerance to antigens recognized as "self". To examine if a xenogeneic tissue vaccine could stimulate protective immunity in a human prostate cancer cell line, a vaccine was produced by glutaraldehyde fixation of harvested PAIII prostate cancer cells tumors (GFT cell vaccine) from Lobund-Wistar rats. Immunocompetent Ncr-Foxn1 mice were vaccinated with the GFT cell vaccine four times, 7 days apart. The control animals were either not vaccinated or vaccinated with media or glutaraldehyde-fixed PC346C human prostate cancer cells and adjuvant. About 8 days after the final boost, serum and spleens were harvested. The splenocytes were co-incubated with PC346C cells and then transplanted orthotopically into sygneneic immunodeficient nude mice. About 10 weeks later, the prostates were weighed and sampled for histolologic examination. The spleens were harvested from additional mice, and the splenocytes were cultured, either with or without pulsing by GFT cells, and the supernatants harvested 72 h later for cytokine analysis. Results showed that vaccination with GFT cells resulted in increased serum antibody to a PAIII cell lysate; reduced weight of the prostate/seminal vesicle complex and reduced incidence of prostate cancer in nude mice; increased splenocyte supernatant levels of TNF-alpha, IL-2, IFN-gamma and IL-12, cytokines associated with Th1 immunity; and increased splenocyte supernatant levels of IL-4 and IL-10, cytokines associated with Th2 immunity. In summary, the results suggest that use of a xenogeneic tissue vaccine can stimulate protective immunity against human prostate cancer cells.
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Affiliation(s)
- Mark A Suckow
- Freimann Life Science Center, University of Notre Dame, Notre Dame, IN 46556, USA.
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42
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Tan GH, Huang FY, Wang H, Huang YH, Lin YY, Li YN. Immunotherapy of hepatoma with a monoclonal antibody against murine endoglin. World J Gastroenterol 2007; 13:2479-83. [PMID: 17552032 PMCID: PMC4146767 DOI: 10.3748/wjg.v13.i17.2479] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To explore the capability of a monoclonal antibody (mAb) against murine endoglin to inhibit tumor angiogenesis and suppression of hepatoma growth in murine models.
METHODS: A monoclonal antibody against murine endoglin was purified by affinity chromatography and passively transfused through tail veins in two murine hepatoma models. Tumor volume and survival time were observed at three-day intervals for 48 d. Microvessels in tumor tissues were detected by immunohistochemistry against CD31, and angiogenesis in vivo was determined by alginate encapsulated assay. In addition, tumor cell apoptosis was detected by TUNEL assay.
RESULTS: Passive immunotherapy with anti-endoglin mAb could effectively suppress tumor growth, and prolonged the survival time of hepatoma-bearing mice. Angiogenesis was apparently inhibited within the tumor tissues, and the vascularization of alginate beads was also reduced in the mice passively transfused with anti-endoglin mAb. In addition, increased apoptotic cells were observed within the tumor tissues from the mice passively transfused with anti-endoglin mAb.
CONCLUSION: Passive immunotherapy with anti-endoglin mAb effectively inhibits tumor growth via inhibiting tumor angiogenesis and increasing tumor cell apoptosis, which may be highly correlated with the blockage of endoglin-related signal pathway induced by anti-endoglin mAb.
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MESH Headings
- Alginates
- Animals
- Antibodies, Monoclonal/immunology
- Antibodies, Monoclonal/therapeutic use
- Apoptosis/drug effects
- Cell Line, Tumor
- Disease Models, Animal
- Endoglin
- Glucuronic Acid
- Hexuronic Acids
- Immunization, Passive/methods
- Intracellular Signaling Peptides and Proteins/immunology
- Liver Neoplasms, Experimental/blood supply
- Liver Neoplasms, Experimental/drug therapy
- Liver Neoplasms, Experimental/immunology
- Mice
- Mice, Inbred BALB C
- Mice, Inbred C57BL
- Mice, Nude
- Microspheres
- Neovascularization, Pathologic/drug therapy
- Random Allocation
- Signal Transduction/drug effects
- Survival Rate
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Affiliation(s)
- Guang-Hong Tan
- Hainan Provincial Key Laboratory of Tropical Medicine, Hainan Medical College, Haikou 571101, Hainan Province, China.
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43
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Affiliation(s)
- B St Croix
- Tumor Angiogenesis Section, Mouse Cancer Genetics Program, National Cancer Institute at Frederick, Frederick, MD 21702, USA.
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44
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Yi T, Wei YQ, Tian L, Zhao X, Li J, Deng HX, Wen YJ, Zou CH, Tan GH, Kan B, Su JM, Jiang Y, Mao YQ, Chen P, Wang YS. Humoral and cellular immunity induced by tumor cell vaccine based on the chicken xenogeneic homologous matrix metalloproteinase-2. Cancer Gene Ther 2006; 14:158-64. [PMID: 17124509 DOI: 10.1038/sj.cgt.7700994] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Matrix metalloproteinase-2 (MMP-2) has been used as a target for cancer immunotherapy. The activation of immunization by breaking immune tolerance to self-MMP-2 may be one of the promising approaches for the treatment of MMP-2-positive tumors. In this study, we constructed the xenogeneic tumor cell vaccine c-MMP-2 by transfecting CT26 and LLC cells with chicken MMP-2 cDNA constructs. MMP-2-specific autoantibodies in sera and tumor cells were found in mice immunized with c-MMP-2. Protection against tumor growth was evaluated in respect of the relative contributions of autoantibodies, CD4+, and CD8+ T cells. Treatment with this vaccine (c-MMP-2) also prolonged the survival time of mice bearing cancer. The specific cytotoxic T-cell responses suggested that the treatment increased CD8+ T-cell activity. The antitumor activity of c-MMP-2 was abrogated by in vivo depletion of CD4+ and CD8+ T-lymphocytes and improved by adoptive transfer of CD4+ and CD8+ T-lymphocytes from the mice treated with c-MMP-2. An alternative DNA vaccination strategy for cancer therapy was identified in this study by eliciting humoral and cellular immunoresponse with a crossreacting transfectant.
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Affiliation(s)
- T Yi
- State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, The People's Republic of China
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Zhong Z, Kusznieruk KP, Popov IA, Riordan NH, Izadi H, Yijian L, Sher S, Szczurko OM, Agadjanyan MG, Tullis RH, Harandi A, Reznik BN, Mamikonyan GV, Ichim TE. Induction of antitumor immunity through xenoplacental immunization. J Transl Med 2006; 4:22. [PMID: 16725035 PMCID: PMC1482718 DOI: 10.1186/1479-5876-4-22] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2006] [Accepted: 05/25/2006] [Indexed: 11/10/2022] Open
Abstract
Historically cancer vaccines have yielded suboptimal clinical results. We have developed a novel strategy for eliciting antitumor immunity based upon homology between neoplastic tissue and the developing placenta. Placenta formation shares several key processes with neoplasia, namely: angiogenesis, activation of matrix metalloproteases, and active suppression of immune function. Immune responses against xenoantigens are well known to break self-tolerance. Utilizing xenogeneic placental protein extracts as a vaccine, we have successfully induced anti-tumor immunity against B16 melanoma in C57/BL6 mice, whereas control xenogeneic extracts and B16 tumor extracts where ineffective, or actually promoted tumor growth, respectively. Furthermore, dendritic cells were able to prime tumor immunity when pulsed with the placental xenoantigens. While vaccination-induced tumor regression was abolished in mice depleted of CD4 T cells, both CD4 and CD8 cells were needed to adoptively transfer immunity to naïve mice. Supporting the role of CD8 cells in controlling tumor growth are findings that only freshly isolated CD8 cells from immunized mice were capable of inducing tumor cell caspases-3 activation ex vivo. These data suggest feasibility of using xenogeneic placental preparations as a multivalent vaccine potently targeting not just tumor antigens, but processes that are essential for tumor maintenance of malignant potential.
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Affiliation(s)
- Zhaohui Zhong
- The Second Xiangya Hospital of Central South University, Changsha, China
| | | | - Igor A Popov
- Department of Surgery, University of Western Ontario, London, Canada
| | | | - Hamid Izadi
- MedVax Pharma Corp, Toronto, Canada/San Diego, USA
| | - Li Yijian
- The Second Xiangya Hospital of Central South University, Changsha, China
| | - Salman Sher
- Division of Cardiology, Emory University, Atlanta, USA
| | | | | | | | - Amir Harandi
- Department of Medicine, Columbia University, New York, USA
| | | | | | - Thomas E Ichim
- MedVax Pharma Corp, Toronto, Canada/San Diego, USA
- OncoMune LLC, Los Angeles, California, USA
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Zhang R, Tian L, Chen LJ, Xiao F, Hou JM, Zhao X, Li G, Yao B, Wen YJ, Li J, Zhang L, Chen XC, Luo F, Peng F, Jiang Y, Wei YQ. Combination of MIG (CXCL9) chemokine gene therapy with low-dose cisplatin improves therapeutic efficacy against murine carcinoma. Gene Ther 2006; 13:1263-71. [PMID: 16672984 DOI: 10.1038/sj.gt.3302756] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
MIG (monokine induced by interferon-gamma) is a CXC chemokine ligand (CXCL9) that can potently inhibit angiogenesis, and displays thymus-dependent antitumor effects. The effectiveness of a treatment combining gene therapy with plasmid-borne MIG (pORF-MIG) and low-dose cisplatin chemotherapy was determined using colon carcinoma (CT26) and Lewis lung carcinoma (LL/2c) murine models. The program was carried out via intramuscular delivery of pORF-MIG at 100 mug/mouse twice a week for 4 weeks, and/or intraperitoneal delivery of cisplatin at 0.6 mg/kg/mouse every 3 days for 48 days. Tumor volume and survival time were evaluated after treatment. CD31 immunohistochemical staining in tumor tissues and alginate capsule models in vivo was used to evaluate angiogenesis. Induction of apoptosis and cytotoxic T-lymphocyte (CTL) activity were also assessed. The combination of pORF-MIG and low-dose cisplatin produced significant antitumor activity, with complete tumor regression in 4/10 of CT26 colon carcinomas and 3/10 of LL/2c lung carcinomas, low vascularity, in alginate capsules, apparently degraded tumor microvessel density, and increased induction of apoptotic and CTL activities compared with either treatment alone. This study suggests that the combination of pORF-MIG plus cisplatin augments the inhibition of angiogenesis and the induction of apoptosis or CTL activity, all of which enhance antitumor activity. These findings may prove useful in further explorations of the application of combinatorial approaches to the treatment of solid tumors.
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MESH Headings
- Animals
- Antineoplastic Agents/therapeutic use
- Apoptosis
- Carcinoma/drug therapy
- Carcinoma/therapy
- Carcinoma, Lewis Lung/blood supply
- Carcinoma, Lewis Lung/drug therapy
- Carcinoma, Lewis Lung/therapy
- Chemokine CXCL9
- Chemokines, CXC/genetics
- Cisplatin/therapeutic use
- Colonic Neoplasms/blood supply
- Colonic Neoplasms/drug therapy
- Colonic Neoplasms/therapy
- Combined Modality Therapy
- Genetic Engineering
- Genetic Therapy/methods
- Injections, Intramuscular
- Injections, Intraperitoneal
- Lymphocyte Activation
- Mice
- Mice, Inbred BALB C
- Mice, Inbred C57BL
- Neoplasms, Experimental/blood supply
- Neoplasms, Experimental/drug therapy
- Neoplasms, Experimental/therapy
- Neovascularization, Pathologic
- Oncolytic Virotherapy/methods
- Plasmids/administration & dosage
- Random Allocation
- T-Lymphocytes, Cytotoxic/immunology
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Affiliation(s)
- R Zhang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu, China
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Okaji Y, Tsuno NH, Saito S, Yoneyama S, Tanaka M, Nagawa H, Takahashi K. Vaccines targeting tumour angiogenesis--a novel strategy for cancer immunotherapy. Eur J Surg Oncol 2006; 32:363-70. [PMID: 16520018 DOI: 10.1016/j.ejso.2006.01.016] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2005] [Accepted: 01/26/2006] [Indexed: 01/30/2023] Open
Abstract
AIMS To review the concept of tumour angiogenesis and anti-angiogenic therapy, limitations of recently used anti-angiogenic therapeutics; provide an up-to-date overview of the growing number of reports on vaccines targeting tumour angiogenesis; and finally discuss potential complications and future directions in the development of more potent and specific vaccines. METHODS A literature search was carried out from PubMed for indexed articles. The most important articles were analysed and discussed. FINDINGS The search yielded a large number of important indexed published articles that were reviewed, screened and tracked for other relevant publications. The most relevant articles, including those previously published by authors, were analysed and discussed. CONCLUSIONS Recently, different vaccine strategies have been reported to inhibit tumour growth and metastasis by induction of specific cellular and/or humoral immunity against angiogenesis-associated antigens in pre-clinical models, suggesting effective combination of anti-angiogenesis and cancer immunotherapy. Evaluation of tumour endothelial cells and clinical phase I study of the vaccines are recently ongoing, and should give us better insight into the possibilities of this novel strategy for cancer immunotherapy.
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Affiliation(s)
- Y Okaji
- Department of Surgical Oncology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
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Yao B, He QM, Tian L, Xiao F, Jiang Y, Zhang R, Li G, Zhang L, Hou JM, Wang L, Cheng XC, Wen YJ, Kan B, Li J, Zhao X, Hu B, Zhou Q, Zhang L, Wei YQ. Enhanced Antitumor Effect of the Combination of Tumstatin Gene Therapy and Gemcitabine in Murine Models. Hum Gene Ther 2005; 16:1075-86. [PMID: 16149906 DOI: 10.1089/hum.2005.16.1075] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Targeting tumor endothelium is an important strategy for cancer therapy. We evaluated the effectiveness of gene therapy, that is, intramuscular delivery of plasmid DNA encoding tumstatin (pSecTag2B-tum), combined with gemcitabine administration in vitro and in vivo, using colon carcinoma (CT26) and Lewis lung carcinoma (LLC) murine models. The in vitro growth-inhibitory and proapoptotic effects of gemcitabine and/or tumstatin on human umbilical vein endothelial cells (HUVECs) and mouse endothelial cells (SVEC4-10), respectively, were assessed. in vitro, conditioned medium from pSecTag2B-tum-transfected COS cells inhibited the growth of endothelial cells but not of CT26 or LLC cells, whereas gemcitabine inhibited the growth of both endothelial cells and CT26 and LLC cells. Mice bearing subcutaneously established CT26 or LLC tumors received pSecTag2B-tum alone or in combination with gemcitabine to assess tumor growth inhibition. in vivo, combined treatment with pSecTag2B-tum and gemcitabine significantly decreased tumor growth through increased inhibition of tumor angiogenesis and increased tumor cell apoptosis compared with either agent alone. Enhanced antiproliferative and proapoptotic activity of the combination therapy on tumor-associated endothelial cells was calculated to be significant. This study suggests that combined treatment by the intramuscular delivery of plasmid DNA encoding tumstatin and gemcitabine augments tumor growth inhibition by suppressing angiogenesis and enhancing apoptosis in murine models. A combination of these agents could be used in future studies and translated into the clinical setting.
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Affiliation(s)
- Bin Yao
- National Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu, Sichuan 610041, People's Republic of China
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Li G, Tian L, Hou JM, Ding ZY, He QM, Feng P, Wen YJ, Xiao F, Yao B, Zhang R, Peng F, Jiang Y, Luo F, Zhao X, Zhang L, Zhou Q, Wei YQ. Improved therapeutic effectiveness by combining recombinant CXC chemokine ligand 10 with Cisplatin in solid tumors. Clin Cancer Res 2005; 11:4217-24. [PMID: 15930360 DOI: 10.1158/1078-0432.ccr-04-2117] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
PURPOSE CXC chemokine ligand 10 (CXCL10) is a potent inhibitor of angiogenesis. We wonder whether the combination of CXCL10 with cisplatin would improve the therapeutic antitumor efficacy. EXPERIMENT DESIGN We evaluated the antitumor activity of the combination therapy in the immunocompetent C57BL/6 and BALB/c mice bearing LL/2 Lewis lung cancer and CT26 colon adenocarcinoma, respectively. Mice were treated with either CXCL10 s.c. at 25 mug per kg per day once daily for 30 days, cisplatin cycled twice (5 mg/kg i.p. on days 14 and 21 after the initiation of CXCL10), or both agents together. Tumor volume and survival time were observed. Antiangiogenesis of CXCL10 in vivo were determined by alginate capsule models and CD31 immunohistochemistry. Histologic analysis and assessment of apoptotic cells were also conducted in tumor tissues. RESULTS CXCL10 + cisplatin reduced tumor growth in LL/2 and CT26 tumor model, respectively, more effectively, although cisplatin or CXCL10 individually resulted in suppression of tumor growth and improved survival time of tumor-bearing mice. CXCL10 successfully inhibited angiogenesis as assessed by alginate model and CD31 (P < 0.05). Histologic analysis of tumors exhibited that CXCL10 in combination with cisplatin led to the increased rate of apoptosis, tumor necrosis, and elevated lymphocyte infiltration. CONCLUSIONS Our data suggest that the combination of CXCL10, a well-tolerated angiogenesis inhibitor, with cisplatin can enhance the antitumor activity. The present findings may be of importance to the further exploration of the potential application of this combined approach in the treatment of lung and colon carcinoma.
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MESH Headings
- Animals
- Antineoplastic Combined Chemotherapy Protocols/therapeutic use
- Apoptosis/drug effects
- Carcinoma, Lewis Lung/drug therapy
- Carcinoma, Lewis Lung/metabolism
- Carcinoma, Lewis Lung/pathology
- Cell Line, Tumor
- Chemokine CXCL10
- Chemokines, CXC/administration & dosage
- Cisplatin/administration & dosage
- Immunohistochemistry
- Mice
- Mice, Inbred BALB C
- Mice, Inbred C57BL
- Neoplasms, Experimental/drug therapy
- Neoplasms, Experimental/metabolism
- Neoplasms, Experimental/pathology
- Neovascularization, Pathologic/metabolism
- Neovascularization, Pathologic/pathology
- Neovascularization, Pathologic/prevention & control
- Platelet Endothelial Cell Adhesion Molecule-1/analysis
- Recombinant Proteins/administration & dosage
- Survival Analysis
- Treatment Outcome
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Affiliation(s)
- Gang Li
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu, Sichuan, The People's Republic of China
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Yao B, He QM, Tian L, Xiao F, Jiang Y, Zhang R, Li G, Zhang L, Hou JM, Wang L, Cheng XC, Wen YJ, Kan B, Li J, Zhao X, Hu B, Zhou Q, Zhang L, Wei YQ. Enhanced Antitumor Effect of the Combination of Tumstatin Gene Therapy and Gemcitabine in Murine Models. Hum Gene Ther 2005. [DOI: 10.1089/hum.2005.16.ft-109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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