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Zhang H, Wang Y, Li M, Cao K, Qi Z, Zhu L, Zhang Z, Hou L. A self-guidance biological hybrid drug delivery system driven by anaerobes to inhibit the proliferation and metastasis of colon cancer. Asian J Pharm Sci 2022; 17:892-907. [PMID: 36600894 PMCID: PMC9800957 DOI: 10.1016/j.ajps.2022.09.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 07/17/2022] [Accepted: 09/14/2022] [Indexed: 01/07/2023] Open
Abstract
Colorectal cancer is often accompanied by multiple organ metastasis. Anaerobic Bifidobacterium Infantis (BI) bacterial can selectively grow in hypoxic colorectal tumor microenvironment (TME), to own the natural advantage of preferentially colorectal tumor targeting. Herein, a self-guidance biological hybrid drug delivery system (BI-ES-FeAlg/DOX) based on BI was constructed to inhibit the proliferation and metastasis of colon cancer. Results demonstrated that BI-ES-FeAlg/DOX could overcome physical barriers to target and accumulate in colon tumor tissues. Then DOX was released to kill tumor cells along with the phase transition (solid to liquid) of FeAlg hydrogel, due to Fe3+ was reduced to Fe2+by intracellular GSH. Meanwhile, BI-ES selectively colonized into tumors and expressed endostatin (ES) protein to down-regulate VEGF and bFGF expression, exerting anti-angiogenic effect. Moreover, FeAlg catalyzed H2O2 in the local tumor to generate cytotoxic ·OH, further enhancing the antitumor effect. The pharmacodynamic result in AOM/DSS model proved that BI-ES-FeAlg/DOX had the best therapeutic effect, with the final V/V0 of 2.19 ± 0.57, which was significantly lower than the other groups. Meanwhile, on CT-26 tumor-bearing model, it also showed an outstanding anti-tumor effect with inhibition rate of 82.12% ± 3.08%. In addition, lung metastases decreased significantly in tumor metastasis model after BI-ES-FeAlg/DOX treatment.
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Affiliation(s)
- Huijuan Zhang
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China,Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases, Zhengzhou 450000, China,Collaborative Innovation Center of New Drug Research and Safety Evaluation, Zhengzhou 450000, China
| | - Yaping Wang
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Mengting Li
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Kexuan Cao
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Zijun Qi
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Ling Zhu
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China,Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases, Zhengzhou 450000, China,Collaborative Innovation Center of New Drug Research and Safety Evaluation, Zhengzhou 450000, China,Corresponding authors.
| | - Zhenzhong Zhang
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China,Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases, Zhengzhou 450000, China,Collaborative Innovation Center of New Drug Research and Safety Evaluation, Zhengzhou 450000, China,Corresponding authors.
| | - Lin Hou
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China,Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases, Zhengzhou 450000, China,Collaborative Innovation Center of New Drug Research and Safety Evaluation, Zhengzhou 450000, China,Corresponding authors.
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2
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Gerlza T, Trojacher C, Kitic N, Adage T, Kungl AJ. Development of Molecules Antagonizing Heparan Sulfate Proteoglycans. Semin Thromb Hemost 2021; 47:316-332. [PMID: 33794555 DOI: 10.1055/s-0041-1725067] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Heparan sulfate proteoglycans (HSPGs) occur in almost every tissue of the human body and consist of a protein core, with covalently attached glycosaminoglycan polysaccharide chains. These glycosaminoglycans are characterized by their polyanionic nature, due to sulfate and carboxyl groups, which are distributed along the chain. These chains can be modified by different enzymes at varying positions, which leads to huge diversity of possible structures with the complexity further increased by varying chain lengths. According to their location, HSPGs are divided into different families, the membrane bound, the secreted extracellular matrix, and the secretory vesicle family. As members of the extracellular matrix, they take part in cell-cell communication processes on many levels and with different degrees of involvement. Of particular therapeutic interest is their role in cancer and inflammation as well as in infectious diseases. In this review, we give an overview of the current status of medical approaches to antagonize HSPG function in pathology.
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Affiliation(s)
- Tanja Gerlza
- Karl-Franzens University Graz, Institute of Pharmaceutical Sciences, Graz, Austria
| | - Christina Trojacher
- Karl-Franzens University Graz, Institute of Pharmaceutical Sciences, Graz, Austria
| | - Nikola Kitic
- Karl-Franzens University Graz, Institute of Pharmaceutical Sciences, Graz, Austria
| | | | - Andreas J Kungl
- Karl-Franzens University Graz, Institute of Pharmaceutical Sciences, Graz, Austria.,Antagonis Biotherapeutics GmbH, Graz, Austria
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3
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Wang A, Madden LA, Paunov VN. Advanced biomedical applications based on emerging 3D cell culturing platforms. J Mater Chem B 2020; 8:10487-10501. [PMID: 33136103 DOI: 10.1039/d0tb01658f] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
It is of great value to develop reliable in vitro models for cell biology and toxicology. However, ethical issues and the decreasing number of donors restrict the further use of traditional animal models in various fields, including the emerging fields of tissue engineering and regenerative medicine. The huge gap created by the restrictions in animal models has pushed the development of the increasingly recognized three-dimensional (3D) cell culture, which enables cells to closely simulate authentic cellular behaviour such as close cell-to-cell interactions and can achieve higher functionality. Furthermore, 3D cell culturing is superior to the traditional 2D cell culture, which has obvious limitations and cannot closely mimic the structure and architecture of tissues. In this study, we review several methods used to form 3D multicellular spheroids. The extracellular microenvironment of 3D spheroids plays a role in many aspects of biological sciences, including cell signalling, cell growth, cancer cell generation, and anti-cancer drugs. More recently, they have been explored as basic construction units for tissue and organ engineering. We review this field with a focus on the previous research in different areas using spheroid models, emphasizing aqueous two-phase system (ATPS)-based techniques. Multi-cellular spheroids have great potential in the study of biological systems and can closely mimic the in vivo environment. New technologies to form and analyse spheroids such as the aqueous two-phase system and magnetic levitation are rapidly overcoming the technical limitations of spheroids and expanding their applications in tissue engineering and regenerative medicine.
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Affiliation(s)
- Anheng Wang
- Department of Chemistry, University of Hull, Hull, HU6 7RX, UK.
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Tanaka Y, Tateishi R, Koike K. Proteoglycans Are Attractive Biomarkers and Therapeutic Targets in Hepatocellular Carcinoma. Int J Mol Sci 2018; 19:ijms19103070. [PMID: 30297672 PMCID: PMC6213444 DOI: 10.3390/ijms19103070] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 10/03/2018] [Accepted: 10/04/2018] [Indexed: 12/11/2022] Open
Abstract
Proteoglycans, which consist of a protein core and glycosaminoglycan chains, are major components of the extracellular matrix and play physiological roles in maintaining tissue homeostasis. In the carcinogenic tissue microenvironment, proteoglycan expression changes dramatically. Altered proteoglycan expression on tumor and stromal cells affects cancer cell signaling pathways, which alters growth, migration, and angiogenesis and could facilitate tumorigenesis. This dysregulation of proteoglycans has been implicated in the pathogenesis of diseases such as hepatocellular carcinoma (HCC) and the underlying mechanism has been studied extensively. This review summarizes the current knowledge of the roles of proteoglycans in the genesis and progression of HCC. It focuses on well-investigated proteoglycans such as serglycin, syndecan-1, glypican 3, agrin, collagen XVIII/endostatin, versican, and decorin, with particular emphasis on the potential of these factors as biomarkers and therapeutic targets in HCC regarding the future perspective of precision medicine toward the "cure of HCC".
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Affiliation(s)
- Yasuo Tanaka
- Graduate School of Medicine, Department of Gastroenterology, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8655, Japan.
| | - Ryosuke Tateishi
- Graduate School of Medicine, Department of Gastroenterology, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8655, Japan.
| | - Kazuhiko Koike
- Graduate School of Medicine, Department of Gastroenterology, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8655, Japan.
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5
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Li Z, Ding J, Zhao X, Qi G. Combination therapy of hepatocellular carcinoma by DNA shuffling-based VEGF vaccine and doxorubicin. Immunotherapy 2018; 10:951-969. [PMID: 30114953 DOI: 10.2217/imt-2017-0194] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Antiangiogenic therapy can enhance the efficacy of chemotherapy against solid tumors. This study was to determine whether TT46, a potential VEGF vaccine from DNA shuffling with a helper T-cell epitope of tetanus toxin B subunit, could enhance the efficacy of doxorubicin to combat hepatocellular carcinoma (HCC). Compared with monotherapy, the combination with TT46 vaccination and doxorubicin could significantly reduce microvessel counts and inhibit tumor angiogenesis. Enhanced immunization with TT46 for total six doses could induce long-term response maintenance with high anti-VEGF antibody titers in body. As a result, the combination with enhanced TT46 vaccination and doxorubicin significantly inhibited the HCC growth, and improved the survival rate of HCC-bearing mice in both of subcutaneous tumor model and lung metastasis model. In conclusion, the combined therapy with TT46 vaccination and doxorubicin has antitumor effects in both a prophylactic and therapeutic setting in a mouse model of H22 hepatocellular carcinoma.
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Affiliation(s)
- Zhitao Li
- College of Life Science & Technology, Huazhong Agricultural University, Wuhan 430070, HuBei Province, P.R. China
| | - Jia Ding
- College of Life Science & Technology, Huazhong Agricultural University, Wuhan 430070, HuBei Province, P.R. China
| | - Xiuyun Zhao
- College of Life Science & Technology, Huazhong Agricultural University, Wuhan 430070, HuBei Province, P.R. China
| | - Gaofu Qi
- College of Life Science & Technology, Huazhong Agricultural University, Wuhan 430070, HuBei Province, P.R. China.,Biomedical Center, Huazhong Agricultural University, Wuhan 430070, HuBei Province, P.R. China
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Xu Q, Gu J, Lv Y, Yuan J, Yang N, Chen J, Wang C, Hou X, Jia X, Feng L, Yin G. Angiogenesis for tumor vascular normalization of Endostar on hepatoma 22 tumor-bearing mice is involved in the immune response. Oncol Lett 2018; 15:3437-3446. [PMID: 29467868 PMCID: PMC5795950 DOI: 10.3892/ol.2018.7734] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2015] [Accepted: 05/18/2017] [Indexed: 12/11/2022] Open
Abstract
Tumor vascular normalization involved in immune response is beneficial to the chemotherapy of tumors. Recombinant human endostatin (Endostar), an angiogenesis inhibitor, has been demonstrated to be effective in hepatocellular cancer (HCC). However, its vascular normalization in HCC and the role of the immune response in angiogenesis were unclear. In the present study, effects of Endostar on tumor vascular normalization were evaluated in hepatoma 22 (H22) tumor-bearing mice. Endostar was able to inhibit the proliferation and infiltration of tumor cells and improve α-fetoprotein, tumor necrosis factor-α and cyclic adenosine 5′-phosphate levels in the serum of H22-bearing mice, as well as the protein expression levels of the immune factors interferon-γ and cluster of differentiation (CD)86 in liver tissue. Endostar also exhibited more marked downregulation of the levels of vascular endothelial growth factor, CD31, matrix metalloproteinase (MMP)-2, MMP-9 and interleukin-17 during day 3–9 treatment, resulting in short-term normalization of tumor blood vessels. The period of vascular normalization was 3–9 days. The results of the present study demonstrated that Endostar was able to induce the period of vascular normalization, contributing to a more efficacious means of HCC treatment combined with other chemotherapy, and this effect was associated with the immune response. It may be concluded that Endostar inhibited immunity-associated angiogenesis behaviors of vascular endothelial cells in response to HCC. The results of the present study provided more reasonable possibility for the combination therapy of Endostar for the treatment of HCC.
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Affiliation(s)
- Qingyu Xu
- Department of Intervention, Cancer Hospital of Jiangsu, Nanjing, Jiangsu 210009, P.R. China
| | - Junfei Gu
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, P.R. China
| | - You Lv
- Department of Intervention, Cancer Hospital of Jiangsu, Nanjing, Jiangsu 210009, P.R. China
| | - Jiarui Yuan
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, P.R. China
| | - Nan Yang
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, P.R. China
| | - Juan Chen
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, P.R. China
| | - Chunfei Wang
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, P.R. China
| | - Xuefeng Hou
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, P.R. China
| | - Xiaobin Jia
- Key Laboratory of Delivery Systems of Chinese Materia Medica, Jiangsu Provincial Academy of Chinese Medicine, Nanjing, Jiangsu 210028, P.R. China
| | - Liang Feng
- Key Laboratory of Delivery Systems of Chinese Materia Medica, Jiangsu Provincial Academy of Chinese Medicine, Nanjing, Jiangsu 210028, P.R. China
| | - Guowen Yin
- Department of Intervention, Cancer Hospital of Jiangsu, Nanjing, Jiangsu 210009, P.R. China
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A novel synthetic small molecule YF-452 inhibits tumor growth through antiangiogenesis by suppressing VEGF receptor 2 signaling. SCIENCE CHINA-LIFE SCIENCES 2017; 60:202-214. [PMID: 28194552 DOI: 10.1007/s11427-016-0369-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Accepted: 12/26/2016] [Indexed: 12/18/2022]
Abstract
Tumor angiogenesis is characterized by abnormal vessel morphology, endowing tumor with highly hypoxia and unresponsive toward treatment. To date, mounting angiogenic factors have been discovered as therapeutic targets in antiangiogenic drug development. Among them, vascular endothelial growth factor receptor 2 (VEGFR2) inhibitors exerts potent antiangiogenic activity in tumor therapy. Therefore, it may provide a valid strategy for cancer treatment through targeting the tumor angiogenesis via VEGFR2 pathway. In this study, we established a high-profile compounds library and certificated a novel compound named N-(N-pyrrolidylacetyl)-9-(4-bromobenzyl)-1,3,4,9-tetrahydro-β-carboline (YF-452), which remarkably inhibited the migration, invasion and tube-like structure formation of human umbilical vein endothelial cells (HUVECs) with little toxicity invitro. Rat thoracic aorta ring assay indicated that YF-452 significantly blocked the formation of microvascular exvivo. In addition, YF-452 inhibited angiogenesis in chick chorioallantoic membrane (CAM) and mouse corneal micropocket assays. Moreover, YF-452 remarkably suppressed tumor growth in xenografts mice model. Furthermore, investigation of molecular mechanism revealed that YF-452 inhibited VEGF-induced phosphorylation of VEGFR2 kinase and the downstream protein kinases including extracellular signal regulated kinase (ERK), focal adhesion kinase (FAK) and Src. These results indicate that YF-452 inhibits angiogenesis and may be a potential antiangiogenic drug candidate for cancer therapy.
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8
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Abbasi MM, Monfaredan A, Hamishehkar H, Seidi K, Jahanban- Esfahlan R. Novel DOX-MTX nanoparticles improve oral SCC clinical outcome by down regulation of lymph dissemination factor VEGF-C expression in vivo: oral and IV modalities. Asian Pac J Cancer Prev 2017; 15:6227-32. [PMID: 25124602 DOI: 10.7314/apjcp.2014.15.15.6227] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Oral squamous cell carcinoma (OSCC) remains as one of the most difficult malignancies to control because of its high propensity for local invasion and cervical lymph node dissemination. The aim of present study was to evaluate the efficacy of novel pH and temperature sensitive doxorubicin-methotrexate- loaded nanoparticles (DOX-MTX NP) in terms of their potential to change the VEGF-C expression profile in a rat OSCC model. MATERIALS AND METHODS 120 male rats were divided into 8 groups of 15 animals administrated with 4-nitroquinoline-1-oxide to induce OSCCs. Newly formulated doxorubicin-methotrexate-loaded nanoparticles (DOX-MTX NP) and free doxorubicin were IV and orally administered. RESULTS RESULTS indicated that both oral and IV forms of DOX-MTX- nanoparticle complexes caused significant decrease in the mRNA level of VEGF-C compared to untreated cancerous rats (p<0.05) . Surprisingly, the VEGF-C mRNA was not affected by free DOX in both IV and oral modalities (p>0.05). Furthermore, in DOX-MTX NP treated group, less tumors characterized with advanced stage and VEGF-C mRNA level paralleled with improved clinical outcome (p<0.05). In addition, compared to untreated healthy rats , the VEGF-C expression was not affected in healthy groups that were treated with IV and oral dosages of nanodrug (p>0.05). CONCLUSIONS VEGF-C is one of the main prognosticators for lymph node metastasis in OSCC. Down-regulation of this lymph-angiogenesis promoting factor is a new feature acquired in group treated with dual action DOX-MTX-NPs. Beside the synergic apoptotic properties of concomitant use of DOX and MTX on OSCC, DOX-MTX NPs possessed anti-angiogenesis properties which was related to the improved clinical outcome in treated rats. Taking together, we conclude that our multifunctional doxorubicin-methotrexate complex exerts specific potent apoptotic and anti-angiogenesis properties that could ameliorate the clinical outcome presumably via down-regulating dissemination factor-VEGF-C expression in a rat OSCC model.
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Affiliation(s)
- Mehran Mesgari Abbasi
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran E-mail :
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9
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Yegin EG, Oymaci E, Karatay E, Coker A. Progress in surgical and nonsurgical approaches for hepatocellular carcinoma treatment. Hepatobiliary Pancreat Dis Int 2016; 15:234-56. [PMID: 27298100 DOI: 10.1016/s1499-3872(16)60097-8] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND Hepatocellular carcinoma (HCC) is a complex and heterogeneous malignancy, frequently occurs in the setting of a chronically diseased organ, with multiple confounding factors making its management challenging. HCC represents one of the leading causes of cancer-related mortality globally with a rising trend of incidence in some of the developed countries, which indicates the need for better surgical and nonsurgical management strategies. DATA SOURCES PubMed database was searched for relevant articles in English on the issue of HCC management. RESULTS Surgical resection represents a potentially curative option for appropriate candidates with tumors detected at earlier stages and with well-preserved liver function. The long-term outcome of surgery is impaired by a high rate of recurrence. Surgical approaches are being challenged by local ablative therapies such as radiofrequency ablation and microwave ablation in selected patients. Liver transplantation offers potential cure for HCC and also correction of underlying liver disease, and minimizes the risk of recurrence, but is reserved for patients within a set of criteria proposed for a prudent allocation in the shortage of donor organs. Transcatheter locoregional therapies have become the palliative standard allowing local control for intermediate stage patients with noninvasive multinodular or large HCC who are beyond the potentially curative options. The significant survival benefit with the multikinase inhibitor sorafenib for advanced HCC has shifted the direction of research regarding systemic treatment toward molecular therapies targeting the disregulated pathways of hepatocarcinogenesis. Potential benefit is suggested from simultaneous or sequential multimodal therapies, and optimal combinations are being investigated. Despite the striking progress in preclinical studies of HCC immunotherapy and gene therapy, extensive clinical trials are required to achieve successful clinical applications of these innovative approaches. CONCLUSION Treatment decisions have become increasingly complex for HCC with the availability of multiple surgical and nonsurgical therapeutic options and require a comprehensive, multidisciplinary approach.
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Affiliation(s)
- Ender Gunes Yegin
- Department of Gastroenterology, Bozyaka Training and Research Hospital, Izmir 35170, Turkey.
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Qi X, Liu Y, Wei W, Huang X, Zuo Y. Effects of the C-terminal of endostatin on the tumorigenic potential of H22 cells. Biomed Rep 2014; 1:761-765. [PMID: 24649025 DOI: 10.3892/br.2013.147] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2013] [Accepted: 07/04/2013] [Indexed: 11/05/2022] Open
Abstract
Endostatin is an endogenous angiogenesis inhibitor whose specific functional site has not yet been determined. In the present experiment, 13 amino acids (LCIENSFMTSFSK) were selectively deleted from the C-terminal of endostatin and the resulting mutant endostatin was named EM13. To determine the effect of the C-terminal deletion on the biological activity of endostatin, EM13, wild-type endostatin and empty plasmid were transfected into H22 cells. After 48 h, the three types of transfected cells were harvested and injected into nude mice. The results demonstrated that there was no significant difference in tumor size, as determined by hematoxylin and eosin staining, between the EM13-transfected group and the endostatin and empty plasmid groups, although the nude mice that were injected with EM13-transfected H22 cells exhibited smaller tumors and lower density of blood vessels compared to those injected with endostatin- and empty plasmid-transfected H22 cells. The results suggested that the 13 amino acids of the C-terminal of endostatin do not play an important role in the tumorigenic potential of H22 cells. This experiment was unsuccessful in reproducing the results of several investigators. Therefore, the mechanism underlying the tumorigenesis of H22 cells remains to be elucidated.
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Affiliation(s)
- Xia Qi
- Department of Clinical Biochemistry, Dalian Medical University, Dalian, Liaoning 116044, P.R. China
| | - Yuejian Liu
- The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, P.R. China
| | - Wei Wei
- Department of Clinical Biochemistry, Dalian Medical University, Dalian, Liaoning 116044, P.R. China
| | - Xiaohua Huang
- Department of Clinical Biochemistry, Dalian Medical University, Dalian, Liaoning 116044, P.R. China
| | - Yunfei Zuo
- Department of Clinical Biochemistry, Dalian Medical University, Dalian, Liaoning 116044, P.R. China
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Ranieri G, Marech I, Lorusso V, Goffredo V, Paradiso A, Ribatti D, Gadaleta CD. Molecular targeting agents associated with transarterial chemoembolization or radiofrequency ablation in hepatocarcinoma treatment. World J Gastroenterol 2014; 20:486-497. [PMID: 24574717 PMCID: PMC3923023 DOI: 10.3748/wjg.v20.i2.486] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2013] [Accepted: 12/13/2013] [Indexed: 02/06/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is the fifth most common cause of cancer in the world. According to Barcelona Clinic Liver Cancer modified criteria, patients with early stage disease are candidate to radiofrequency ablation (RFA), while patients with intermediate stage HCC are usually treated by transarterial chemoembolization (TACE). TACE and RFA induce a transient devascularisation effect followed by strong neo-angiogenic stimulus. In fact, after these procedures, it has been demonstrated an up-regulation of pro-angiogenic and growth factors such as vascular endothelial growth factor-A, which might contribute to accelerated progression in patients with incomplete response. Several studies have demonstrated that MAP-kinase and AKT pathways, in addition to neo-angiogenesis, have an important role in the development of HCC. In advanced HCC, anti-angiogenic therapy and tyrosine kinases inhibitors showed potential clinical benefit. Actually, a number of clinical studies are ongoing testing these agents in combination with TACE or RFA. In this paper, we have reviewed the most recent preclinical and clinical results of such trials.
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Li X, Li Y, Wang B, Ji K, Liang Z, Guo B, Hu J, Yin D, Du Y, Kopecko DJ, Kalvakolanu DV, Zhao X, Xu D, Zhang L. Delivery of the co-expression plasmid pEndo-Si-Stat3 by attenuated Salmonella serovar typhimurium for prostate cancer treatment. J Cancer Res Clin Oncol 2013; 139:971-80. [PMID: 23463096 DOI: 10.1007/s00432-013-1398-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2012] [Accepted: 02/08/2013] [Indexed: 12/18/2022]
Abstract
OBJECTIVES To investigate the therapeutic utility of an attenuated bacterium carrying a plasmid that co-expresses Endostatin, an inhibitor of tumor neovasculogenesis, and a shRNA that targets Stat3 to suppress prostate cancer growth. METHODS Plasmid pEndo-Si-Stat3 was constructed and introduced into an attenuated strain of Salmonella enterica serovar typhimurium. The resultant recombinant bacterium was used as a vector to deliver the plasmid to tumor cells growing in vivo. Tumor-associated gene and protein expression changes were measured by using RT-PCR and Western blot analyses. Expression of Endostatin in tumor tissue was detected by ELISA. The presence of vector bacteria in tissues was monitored and tumor destruction was assessed by using TUNEL and H&E staining assays. RESULTS Bacterially delivered pEndo-Si-Stat3 decreased Stat3 levels and increased Endostatin expression in mouse tumors, resulting in a significant suppression of tumor growth (P < 0.01). Expression of Bcl-2 and PCNA was down-regulated and Caspase3 expression was up-regulated to promote apoptosis of tumor cells. CONCLUSIONS Successful delivery by attenuated Salmonella of the combination therapeutic plasmid simultaneously knocked down the expression of Stat3 and resulted in over-expression of Endostatin, which synergistically inhibited prostate cancer growth.
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Affiliation(s)
- Xin Li
- Department of Pathophysiology, Prostate Diseases Prevention and Treatment Research Center, Norman Bethune Medical School, Jilin University, Xinmin Street, Changchun, 130021, People's Republic of China
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Lu H, Hallstrom TC. Sensitivity to TOP2 targeting chemotherapeutics is regulated by Oct1 and FILIP1L. PLoS One 2012; 7:e42921. [PMID: 22900064 PMCID: PMC3416772 DOI: 10.1371/journal.pone.0042921] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2012] [Accepted: 07/13/2012] [Indexed: 12/28/2022] Open
Abstract
Topoisomerase II (TOP2) targeting drugs like doxorubicin and etoposide are frontline chemotherapeutics for a wide variety of solid and hematological malignancies, including breast and ovarian adenocarcinomas, lung cancers, soft tissue sarcomas, leukemias and lymphomas. These agents cause a block in DNA replication leading to a pronounced DNA damage response and initiation of apoptotic programs. Resistance to these agents is common, however, and elucidation of the mechanisms causing resistance to therapy could shed light on strategies to reduce the frequency of ineffective treatments. To explore these mechanisms, we utilized an unbiased shRNA screen to identify genes that regulate cell death in response to doxorubicin treatment. We identified the Filamin A interacting protein 1-like (FILIP1L) gene as a crucial mediator of apoptosis triggered by doxorubicin. FILIP1L shares significant similarity with bacterial SbcC, an ATPase involved in DNA repair. FILIP1L was originally described as DOC1, or “down-regulated in ovarian cancer” and has since been shown to be downregulated in a wide variety of human tumors. FILIP1L levels increase markedly through transcriptional mechanisms following treatment with doxorubicin and other TOP2 poisons, including etoposide and mitoxantrone, but not by the TOP2 catalytic inhibitors merbarone or dexrazoxane (ICRF187), or by UV irradiation. This induction requires the action of the OCT1 transcription factor, which relocalizes to the FILIP1L promoter and facilitates its expression following doxorubicin treatment. Our findings suggest that the FILIP1L expression status in tumors may influence the response to anti-TOP2 chemotherapeutics.
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Affiliation(s)
- Huarui Lu
- Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota, United States of America
| | - Timothy C. Hallstrom
- Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota, United States of America
- * E-mail:
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Deng G, Zhao DL, Li GC, Yu H, Teng GJ. Combination therapy of transcatheter arterial chemoembolization and arterial administration of antiangiogenesis on VX2 liver tumor. Cardiovasc Intervent Radiol 2011; 34:824-32. [PMID: 21671151 DOI: 10.1007/s00270-011-0179-x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2009] [Accepted: 12/03/2010] [Indexed: 12/29/2022]
Abstract
PURPOSE This study was designed to evaluate the antitumorigenic efficiency of Endostar (an antiangiogenic agent) arterially administrated combined with transcatheter arterial chemoembolization (TACE) on liver tumor, and validation of perfusion CT for quantitative measurements of the results. EXPERIMENTAL DESIGN Thirty rabbits bearing VX2 liver tumors were randomly and equally distributed into three groups. One of the following treatment protocols was performed in each group: 1) group 1 was treated with TACE and simultaneously arterially administrated Endostar; 2) group 2 with TACE alone, and 3) a control group that had saline injected through hepatic artery. Routine CT scan was performed before treatment, and perfusion CT imaging was performed 2 weeks after treatment. Immunohistochemical biomarkers of microvascular density (MVD) and the expression of vascular endothelial growth factor (VEGF) were measured for assessments of angiogenesis. RESULTS We observed a statistically significant reduction from the control in the volume, growth rate, and size of the tumor 2 weeks after treatment with both TACE plus Endostar and with TACE alone (P < 0.01). Although there was no statistically significant difference in tumor size between the group with TACE plus Endostar and the group with TACE alone (P > 0.05), MVD and VEGF were significantly less expressed in the TACE plus Endostar group than both groups with TACE alone and the control group (P < 0.01). Blood flow (BF), blood volume (BV), and permeability-surface area products (PS) in the group with TACE plus Endostar on perfusion CT were significantly higher than other two groups (P < 0.05), which were positively correlated with the MVD and VEGF values (P < 0.05). CONCLUSIONS TACE with arterial administration of Endostar simultaneously significantly inhibited the angiogenesis biomarkers associated with TACE in a rabbit model bearing VX2 liver tumor, which indicates that the combined treatment protocol may have potential synergistic effects on liver cancer. It also is suggested that perfusion CT may be useful for monitoring antiangiogenic/antivascular treatment in the liver tumors.
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Affiliation(s)
- Gang Deng
- Jiangsu Key Laboratory of Molecular Imaging and Function Imaging, Department of Radiology, Zhongda Hospital, Medical School of Southeast University, 87# Dingjiaqiao Road, Nanjing 210009, China
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15
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Yin J, Kim JK, Moon JH, Beck S, Piao D, Jin X, Kim SH, Lim YC, Nam DH, You S, Kim H, Choi YJ. hMSC-mediated concurrent delivery of endostatin and carboxylesterase to mouse xenografts suppresses glioma initiation and recurrence. Mol Ther 2011; 19:1161-9. [PMID: 21386822 DOI: 10.1038/mt.2011.28] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Glioma stem cells (GSCs) are known to be maintained within a "vascular niche"; thereby, disruption of this microenvironment using antiangiogenesis agents is a promising therapeutic modality. However, this regimen leads to treatment failure and tumor recurrence in patients with glioblastoma multiforme (GBM). Therefore, more effective therapeutic approaches that can eradicate GSCs and the bulk tumors are needed. Toward this goal, we examined the antitumor effects of an antiangiogenesis approach combined with conventional chemotherapy on suppressing glioma xenograft growth. We established three genetically engineered mesenchymal stem cell (MSC) lines (GE-AF-MSCs) by stably transducing the gene encoding endostatin (an antiangiogenesis factor), the gene encoding secretable form of carboxylesterase 2 (sCE2, a prodrug-activating enzyme), or a mixture of both genes. Among the three GE-AF-MSC cell lines, injection of amniotic fluid (AF)-MSCs-endostatin-sCE2 cells into U87MG-EGFRvIII-driven orthotopic brain tumor and postsurgery tumor recurrence models, and subsequent CPT11 treatment yielded the strongest antitumor responses, including diminished angiogenesis, increased cell death, and a reduced Nestin-positive GSC population. Therefore, our antitumor strategy provides a novel basis for designing stem cell-mediated therapeutic approaches to target and eradicate GSCs and the bulk tumors.
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Affiliation(s)
- Jinlong Yin
- National Research Laboratory of Animal Cell Biotechnology, School of Agricultural Biotechnology, Seoul National University, Seoul, Republic of Korea
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16
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The Chick Embryo Chorioallantoic Membrane as an In Vivo Assay to Study Antiangiogenesis. Pharmaceuticals (Basel) 2010; 3:482-513. [PMID: 27713265 PMCID: PMC4033966 DOI: 10.3390/ph3030482] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2010] [Revised: 01/29/2010] [Accepted: 03/02/2010] [Indexed: 12/15/2022] Open
Abstract
Antiangiogenesis, e.g., inhibition of blood vessel growth, is being investigated as a way to prevent the growth of tumors and other angiogenesis-dependent diseases. Pharmacological inhibition interferes with the angiogenic cascade or the immature neovasculature with synthetic or semi-synthetic substances, endogenous inhibitors or biological antagonists.The chick embryo chorioallantoic membrane (CAM) is an extraembryonic membrane, which serves as a gas exchange surface and its function is supported by a dense capillary network. Because its extensive vascularization and easy accessibility, CAM has been used to study morphofunctional aspects of the angiogenesis process in vivo and to study the efficacy and mechanism of action of pro- and anti-angiogenic molecules. The fields of application of CAM in the study of antiangiogenesis, including our personal experience, are illustrated in this review article.
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Wang K, Wang K, Shen B, Huang T, Sun X, Li W, Jin G, Li L, Bu L, Li R, Wang D, Chen X. MR reporter gene imaging of endostatin expression and therapy. Mol Imaging Biol 2009; 12:520-9. [PMID: 19957205 DOI: 10.1007/s11307-009-0286-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2009] [Revised: 06/03/2009] [Accepted: 06/11/2009] [Indexed: 10/20/2022]
Abstract
PURPOSE The aim of this study is to monitor endostatin gene expression and therapy using transferrin receptor (TfR) as reporter gene and transferrin conjugate of ultrasmall supramagnetic iron oxide nanoparticle (Tf-USPIO) as magnetic resonance (MR) reporter probe. PROCEDURE A retroviral plasmid (pLP-LNCX) encoding mouse endostatin and TfR was constructed, and packaged with a titer of 4 × 10(7)colony-forming units per millimeter. MDA-MB-231 breast tumors were established in BALB/c mice by subcutaneous injection of 2 × 10(6) MDA-MB-231 cells. Mice were intratumorally injected with recombinant retrovirus and imaged with MR using Tf-USPIO. Western blot, Prussian blue, and immunohistochemical staining were performed to validate the magnetic resonance imaging results. The antitumor effect of retro-endostatin (ES)-TfR was also evaluated by intratumoral injection of the viral vector. RESULTS The expression of both endostatin and TfR genes in MDA-MB-231 cells after retroviral transfection was confirmed by Western blot and flow cytometry. Tf-USPIO conjugate binds specifically to cells stably transfected with retro-ES-TfR. After intravenous injection of the Tf-USPIO conjugate, there was a more pronounced decrease in T2 relaxation time in tumors treated with retro-ES-TfR than in tumors treated with empty retrovirus retro-LNCX. The expression of ES gene significantly delayed the growth of MDA-MB-231 tumor and reduction of microvessel density and VEGF level as compared to those without viral transfection or transfected with empty retro-LNCX vector. CONCLUSIONS Endostatin therapeutic gene expression was visualized successfully using TfR reporter gene and Tf-USPIO MR reporter probe, which indicates that MR reporter gene imaging may be valuable in gene therapy to evaluate therapeutic gene expression and treatment efficacy.
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Affiliation(s)
- Kai Wang
- Department of Medical Imaging and Nuclear Medicine, 4th Affiliated Hospital, Harbin Medical University, Harbin, 150001, China
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18
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Chen K, Xie J, Xu H, Behera D, Michalski M, Biswal S, Wang A, Chen X. Triblock copolymer coated iron oxide nanoparticle conjugate for tumor integrin targeting. Biomaterials 2009; 30:6912-9. [PMID: 19773081 PMCID: PMC3640639 DOI: 10.1016/j.biomaterials.2009.08.045] [Citation(s) in RCA: 109] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2009] [Accepted: 08/27/2009] [Indexed: 11/17/2022]
Abstract
A key challenge in developing nanoplatform-based molecular imaging is to achieve an optimal pharmacokinetic profile to allow sufficient targeting and to avoid rapid clearance by the reticuloendothelial system (RES). In the present study, iron oxide nanoparticles (IONPs) were coated with a PEGylated amphiphilic triblock copolymer, making them water soluble and function-extendable. These particles were then conjugated with a near-infrared fluorescent (NIRF) dye IRDye800 and cyclic Arginine-Glycine-Aspartic acid (RGD) containing peptide c(RGDyK) for integrin alpha(v)beta(3) targeting. In vitro binding assays confirmed the integrin-specific association between the RGD-particle adducts and U87MG glioblastoma cells. Successful tumor homing in vivo was perceived in a subcutaneous U87MG glioblastoma xenograft model by both magnetic resonance imaging (MRI) and NIRF imaging. Ex vivo histopathological studies also revealed low particle accumulation in the liver, which was attributed to their compact hydrodynamic size and PEGylated coating. In conclusion, we have developed a novel RGD-IONP conjugate with excellent tumor integrin targeting efficiency and specificity as well as limited RES uptake for molecular MRI.
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Affiliation(s)
- Kai Chen
- The Molecular Imaging Program at Stanford, Department of Radiology, Biophysics and Bio-X Program, Stanford University, Stanford, California
| | - Jin Xie
- The Molecular Imaging Program at Stanford, Department of Radiology, Biophysics and Bio-X Program, Stanford University, Stanford, California
| | - Hengyi Xu
- Ocean NanoTech LLC, Springdale, Arkansas
| | - Deepak Behera
- The Molecular Imaging Program at Stanford, Department of Radiology, Biophysics and Bio-X Program, Stanford University, Stanford, California
| | - Mark Michalski
- The Molecular Imaging Program at Stanford, Department of Radiology, Biophysics and Bio-X Program, Stanford University, Stanford, California
| | - Sandip Biswal
- The Molecular Imaging Program at Stanford, Department of Radiology, Biophysics and Bio-X Program, Stanford University, Stanford, California
| | | | - Xiaoyuan Chen
- The Molecular Imaging Program at Stanford, Department of Radiology, Biophysics and Bio-X Program, Stanford University, Stanford, California
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institute of Health (NIH), Bethesda, MD 20892
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19
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Herringson TP, Patlolla RR, Altin JG. Targeting of plasmid DNA-lipoplexes to cells with molecules anchored via a metal chelator lipid. J Gene Med 2009; 11:1048-63. [DOI: 10.1002/jgm.1394] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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20
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Kong R, Sun B, Jiang H, Pan S, Chen H, Wang S, Krissansen GW, Sun X. Downregulation of nuclear factor-kappaB p65 subunit by small interfering RNA synergizes with gemcitabine to inhibit the growth of pancreatic cancer. Cancer Lett 2009; 291:90-8. [PMID: 19880242 DOI: 10.1016/j.canlet.2009.10.001] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2009] [Revised: 10/04/2009] [Accepted: 10/05/2009] [Indexed: 12/16/2022]
Abstract
The clinical benefit of gemcitabine for pancreatic cancer is low due to chemoresistance. Nuclear factor (NF)-kappaB, constitutively activated in pancreatic cancer, is a therapeutic target as it upregulates expression of genes controlling proliferation, apoptosis and angiogenesis. This study aimed to investigate whether downregulation of the p65 subunit of NF-kappaB by siRNA could enhance the efficacy of gemcitabine to treat pancreatic cancer. p65 siRNA synergized with gemcitabine to inhibit the proliferation and induce the apoptosis of pancreatic cancer cells in vitro and in vivo, and suppress the growth and angiogenesis of pancreatic tumors in nude mice. The mechanisms involved inhibition of NF-kappaB activity and consequent inhibition of Bcl-2, cyclin D1 and VEGF, and activation of caspase-3. The results suggest that downregulation of NF-kappaB p65 potentiates the efficacy of gemcitabine in combating pancreatic cancer.
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Affiliation(s)
- Rui Kong
- The Hepatosplenic Surgery Center, Department of General Surgery, The First Affiliated Hospital of Harbin Medical University, China
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Abstract
Cancer therapy is in the midst of a major paradigm shift. Traditionally, cancer treatments have focused on tumour cells. However, studies over the past few decades have demonstrated that cancer is a vastly complex entity with multiple components affecting a tumour's growth, invasion and metastasis. These components, collectively termed the 'tumour microenvironment', include endothelial cells, pericytes, fibroblasts, inflammatory cells, leucocytes and elements of the extracellular matrix (ECM). Biological agents that target components of the tumour microenvironment may provide an interesting alternative to traditional tumour cell-directed therapy. Because of the complexity of the tumour milieu, the most beneficial therapy will likely involve the combination of one or more agents directed at this new target. This review highlights recent preclinical and clinical studies involving agents that target tumour vasculature, leucocytes, pericytes, cancer-associated fibroblasts and ECM components. We pay particular attention to combination therapies targeting multiple components of the tumour microenvironment, and aim to demonstrate that this strategy holds promise for the future of cancer treatment.
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Affiliation(s)
- E Hanna
- Tumour Angiogenesis Section, Surgery Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
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22
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Liu F, Wang P, Jiang X, Tan G, Qiao H, Jiang H, Krissansen GW, Sun X. Antisense hypoxia-inducible factor 1alpha gene therapy enhances the therapeutic efficacy of doxorubicin to combat hepatocellular carcinoma. Cancer Sci 2008; 99:2055-61. [PMID: 19016766 PMCID: PMC11159667 DOI: 10.1111/j.1349-7006.2008.00905.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2008] [Revised: 06/09/2008] [Accepted: 06/17/2008] [Indexed: 12/21/2022] Open
Abstract
Hepatocellular carcinoma (HCC), one of the most common cancers worldwide, is resistant to anticancer drugs. Hypoxia is a major cause of tumor resistance to chemotherapy, and hypoxia-inducible factor (HIF)-1 is a key transcription factor in hypoxic responses. We have previously demonstrated that gene transfer of an antisense HIF-1alpha expression vector downregulates expression of HIF-1alpha and vascular endothelial growth factor (VEGF), and synergizes with immunotherapy to eradicate lymphomas. The aim of the present study was to determine whether gene transfer of antisense HIF-1alpha could enhance the therapeutic efficacy of doxorubicin to combat HCC. Both antisense HIF-1alpha therapy and doxorubicin suppressed the growth of subcutaneous human HepG2 tumors established in BALB/c nude mice, tumor angiogenesis, and cell proliferation, and induced tumor cell apoptosis. The combination therapy with antisense HIF-1alpha and doxorubicin was more effective in suppressing tumor growth, angiogenesis, and cell proliferation, and inducing cell apoptosis than the respective monotherapies. Gene transfer of antisense HIF-1alpha downregulated the expression of both HIF-1alpha and VEGF, whereas doxorubicin only downregulated VEGF expression. Antisense HIF-1alpha and doxorubicin synergized to downregulate VEGF expression. Both antisense HIF-1alpha and doxorubicin inhibited expression of proliferating cell nuclear antigen, and combined to exert even stronger inhibition of proliferating cell nuclear antigen expression. Antisense HIF-1alpha therapy warrants investigation as a therapeutic strategy to enhance the efficacy of doxorubicin for treating HCC.
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MESH Headings
- Animals
- Antibiotics, Antineoplastic/pharmacology
- Antisense Elements (Genetics)/genetics
- Apoptosis/drug effects
- Carcinoma, Hepatocellular/blood supply
- Carcinoma, Hepatocellular/drug therapy
- Cell Line, Tumor
- Cell Proliferation/drug effects
- Doxorubicin/pharmacology
- Gene Expression Regulation, Neoplastic/drug effects
- Gene Transfer Techniques
- Genetic Therapy/methods
- Humans
- Hypoxia-Inducible Factor 1, alpha Subunit/genetics
- Hypoxia-Inducible Factor 1, alpha Subunit/therapeutic use
- Immunohistochemistry
- Ki-67 Antigen/metabolism
- Liver Neoplasms, Experimental/blood supply
- Liver Neoplasms, Experimental/prevention & control
- Male
- Mice
- Mice, Nude
- Neovascularization, Pathologic/drug therapy
- Proliferating Cell Nuclear Antigen/metabolism
- Vascular Endothelial Growth Factor A/metabolism
- Xenograft Model Antitumor Assays
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Affiliation(s)
- Fengjun Liu
- Department of General Surgery, Qilu Hospital of Shandong University, Jinan, China
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23
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Ribatti D, Belloni AS, Nico B, Di Comite M, Crivellato E, Vacca A. Leptin-leptin receptor are involved in angiogenesis in human hepatocellular carcinoma. Peptides 2008; 29:1596-602. [PMID: 18573568 DOI: 10.1016/j.peptides.2008.05.011] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2008] [Revised: 05/12/2008] [Accepted: 05/13/2008] [Indexed: 02/06/2023]
Abstract
Recent evidence in vitro and in vivo indicates that leptin, an adipose tissue-secreted hormone which is involved in the regulation of satiety, metabolic rate and thermogenesis, is implicated in angiogenesis. However, the role of leptin-mediated angiogenesis in hepatic carcinogenesis has not yet been completely elucidated. In this study, we have correlated microvascular density and leptin/leptin receptor (Ob-R) expression in endothelial and tumor cells with the histopathological type in human hepatocellular carcinoma (HCC). For this purpose, specimens of 40 primary HCC were submitted to immunohistochemical investigation using anti-CD31, anti-leptin and anti-Ob-R antibodies. Poorly-differentiated HCC had a higher degree of vascularization than other stages and leptin/Ob-R expression in both tumor and endothelial cells increased in parallel with the grade of malignancy and was highly correlated with the degree of angiogenesis. In the chick embryo chorioallantoic membrane in vivo assay, HCC biopsy specimens induced a strong angiogenic response, which was counteracted by an anti-leptin antibody. Taken together, these findings indicate that leptin/Ob-R correlate with angiogenesis and tumor progression in patients with HCC and that an anti-leptin antibody exerts an angiostatic activity in HCC.
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Affiliation(s)
- Domenico Ribatti
- Department of Human Anatomy and Histology, University of Bari Medical School, Piazza G. Cesare, 11, Policlinico, 70124 Bari, Italy.
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Li J, Dong X, Xu Z, Jiang X, Jiang H, Krissansen GW, Sun X. Endostatin gene therapy enhances the efficacy of paclitaxel to suppress breast cancers and metastases in mice. J Biomed Sci 2007; 15:99-109. [PMID: 17705027 DOI: 10.1007/s11373-007-9201-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2007] [Accepted: 08/01/2007] [Indexed: 01/20/2023] Open
Abstract
Chemotherapy combined with antiangiogenic therapy is more effective than chemotherapy alone. The aim of this study was to investigate whether endostatin, a potent anti-angiogenic agent, could enhance the efficacy of paclitaxel to combat breast cancer. An expression plasmid encoding mouse endostatin (End-pcDNA3.1) was constructed, which produced intense expression of endostatin and inhibited angiogenesis in the chorioallantoic membrane assay. 4T1 breast tumors were established in BALB/c mice by subcutaneous injection of 1 x 10(5) 4T1 cells. The End-pcDNA3.1 plasmid diluted in the transfection reagent FuGENE was injected into the tumors (around 100 mm(2)), and paclitaxel was injected i.p. into the mice. Endostatin gene therapy synergized with paclitaxel in suppressing the growth of 4T1 tumors and their metastasis to the lung and liver. Both endostatin and paclitaxel inhibited tumor angiogenesis and induced cell apoptosis. Despite the finding that endostatin was superior to paclitaxel at inhibiting tumor angiogenesis, paclitaxel was nevertheless more effective at inducing tumor apoptosis. The combination of paclitaxel and endostatin was more effective in suppressing tumor growth, metastases, angiogenesis, and inducing apoptosis than the respective monotherapies. The combinational therapy with endostatin and paclitaxel warrants future investigation as a therapeutic strategy to combat breast cancer.
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Affiliation(s)
- Jie Li
- Department of General Surgery, Shandong Provincial Qianfoshan Hospital, Jinan, China
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