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Gong K, Lin J, Chen X, Duan Y, Zhang J, Yu J, Wang J, Sun R, Li J, Duan Y. Thermosensitive gel-nano system against esophageal cancer via restoring p53 activity and boosting T-cell immunity. J Control Release 2024; 371:111-125. [PMID: 38782064 DOI: 10.1016/j.jconrel.2024.05.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 05/14/2024] [Accepted: 05/20/2024] [Indexed: 05/25/2024]
Abstract
In esophageal cancer (EC), clinical specimen testing has uncovered a significant increase in BTB and CNC homolog 1 (BACH1) expression and a shift towards an immunosuppressive environment, alongside a notable decrease in p53 protein expression. Therefore, therapeutic strategies focusing on BACH1 inhibition and p53 upregulation appear promising. Traditional oral treatments for EC lack precision and efficacy. Here, we propose a novel approach employing tumor-targeted nanoparticles (NPs) for drug delivery. However, the formation of a drug reservoir at the esophageal site, crucial for the sustained release of therapeutics, presents significant challenges in nano-delivery systems for EC treatment. To address this, we developed a thermosensitive hydrogel composed of F127 and tannic acid, serving as a vehicle for NP loading. These NPs, synthesized through the emulsion/volatization methods of mPEG-PLGA-PLL-cRGD, facilitate in situ drug delivery. Upon contacting esophageal tissue, the hydrogel transitions to a gel, adhering to the lining and enabling sustained release of encapsulated therapeutics. The formulation encompasses NPs laden with small interfering RNA targeting BACH1 (siBACH1) and the p53 activator PRIMA-1, creating a cohesive gel-nano system. Preliminary biological assessments demonstrate that this injectable, thermosensitive gel-nano system adheres effectively to esophageal tissue and targets EC cells. For better modeling clinical outcomes, a patient-derived organoid xenograft (PDOX) model was innovated, involving transplantation of EC-derived organoids into humanized mice, reconstructed with peripheral blood mononuclear cells (PBMCs). Post-treatment analysis showed substantial EC growth inhibition (89.51% tumor inhibition rate), significant BACH1 level reduction, restored anti-tumor immune responses, and pronounced tumor apoptosis. In summary, our study introduces a thermosensitive gel-nano system for EC treatment via restoring p53 activity and boosting T-cell immunity, with potential for clinical application.
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Affiliation(s)
- Ke Gong
- State Key Laboratory of Systems Medicine for Cancer, Shanghai Cancer Institute, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200032, China
| | - Jiangtao Lin
- State Key Laboratory of Systems Medicine for Cancer, Shanghai Cancer Institute, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200032, China
| | - Xiaoyan Chen
- Department of Pathology, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200025, China
| | - Yi Duan
- State Key Laboratory of Systems Medicine for Cancer, Shanghai Cancer Institute, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200032, China
| | - Jiali Zhang
- State Key Laboratory of Systems Medicine for Cancer, Shanghai Cancer Institute, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200032, China
| | - Jian Yu
- State Key Laboratory of Systems Medicine for Cancer, Shanghai Cancer Institute, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200032, China
| | - Jing Wang
- Department of Radiation Oncology, Shanxi Province Cancer Hospital/Shanxi Hospital Affiliated to Cancer Hospital, Chinese Academy of Medical Sciences/Cancer Hospital Affiliated to Shanxi Medical University, Taiyuan, Shanxi 030013, China
| | - Ruifang Sun
- Department of Tumor Biobank, Shanxi Province Cancer Hospital/ Shanxi Hospital Affiliated to Cancer Hospital, Chinese Academy of Medical Sciences/Cancer Hospital Affiliated to Shanxi Medical University, Taiyuan, Shanxi 030013, China.
| | - Jie Li
- Department of Radiation Oncology, Shanxi Province Cancer Hospital/Shanxi Hospital Affiliated to Cancer Hospital, Chinese Academy of Medical Sciences/Cancer Hospital Affiliated to Shanxi Medical University, Taiyuan, Shanxi 030013, China.
| | - Yourong Duan
- State Key Laboratory of Systems Medicine for Cancer, Shanghai Cancer Institute, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200032, China.
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Mahmoudian RA, Farshchian M, Golyan FF, Mahmoudian P, Alasti A, Moghimi V, Maftooh M, Khazaei M, Hassanian SM, Ferns GA, Mahaki H, Shahidsales S, Avan A. Preclinical tumor mouse models for studying esophageal cancer. Crit Rev Oncol Hematol 2023; 189:104068. [PMID: 37468084 DOI: 10.1016/j.critrevonc.2023.104068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 07/13/2023] [Accepted: 07/14/2023] [Indexed: 07/21/2023] Open
Abstract
Preclinical models are extensively employed in cancer research because they can be manipulated in terms of their environment, genome, molecular biology, organ systems, and physical activity to mimic human behavior and conditions. The progress made in in vivo cancer research has resulted in significant advancements, enabling the creation of spontaneous, metastatic, and humanized mouse models. Most recently, the remarkable and extensive developments in genetic engineering, particularly the utilization of CRISPR/Cas9, transposable elements, epigenome modifications, and liquid biopsies, have further facilitated the design and development of numerous mouse models for studying cancer. In this review, we have elucidated the production and usage of current mouse models, such as xenografts, chemical-induced models, and genetically engineered mouse models (GEMMs), for studying esophageal cancer. Additionally, we have briefly discussed various gene-editing tools that could potentially be employed in the future to create mouse models specifically for esophageal cancer research.
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Affiliation(s)
- Reihaneh Alsadat Mahmoudian
- Cancer Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; Basic Sciences Research Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Metabolic Syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Moein Farshchian
- Division of Oncology, Laboratory of Cellular Therapy, Department of Medical and Surgical Sciences for Children and Adults, University Hospital of Modena and Reggio Emilia, Modena, Italy
| | - Fatemeh Fardi Golyan
- Medical Genetics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Parvaneh Mahmoudian
- Medical Genetics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Ali Alasti
- Medical Genetics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Vahid Moghimi
- Department of Biology, Faculty of Science, Hakim Sabzevari University, Sabzevar, Iran
| | - Mina Maftooh
- Metabolic Syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; Medical Genetics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Majid Khazaei
- Basic Sciences Research Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Metabolic Syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Seyed Mahdi Hassanian
- Basic Sciences Research Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Metabolic Syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Gordon A Ferns
- Brighton & Sussex Medical School, Department of Medical Education, Falmer, Brighton, Sussex BN1 9PH, UK
| | - Hanie Mahaki
- Vascular & Endovascular Surgery Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Amir Avan
- Metabolic Syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; College of Medicine, University of Warith Al-Anbiyaa, Karbala, Iraq; Faculty of Health, School of Biomedical Sciences, Queensland University of Technology, Brisbane, Australia.
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3
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Wang H, DeFina SM, Bajpai M, Yan Q, Yang L, Zhou Z. DNA methylation markers in esophageal cancer: an emerging tool for cancer surveillance and treatment. Am J Cancer Res 2021; 11:5644-5658. [PMID: 34873485 PMCID: PMC8640794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Accepted: 09/30/2021] [Indexed: 06/13/2023] Open
Abstract
Esophageal carcinoma (EC) is one of the most pervasive cancers in the world, with upwards of 500,000 new diagnoses, annually. Despite its prominence, advancements in the detection and treatment of EC have been marginal over the past 30 years and the survival rate continues to stay below 20%. This is due to the uncommonly heterogeneous presentation of EC which presents unprecedented challenges in improving patient survival and quality of care. However, distinct epigenetic alterations to the DNA methylome may provide an avenue to drastically improve the detection and treatment of EC. Specifically, the creation of novel biomarker panels that consist of EC-specific methylation markers have shown promise as a potential alternative to the more invasive, contemporary diagnostic methods. Additionally, growing insight into the biological and clinical properties of EC-specific methylation patterns have opened a window of opportunity for enhanced treatment; of growing interest is the application of "DNMT inhibitors" - a class of drugs which inhibit excessive methylation and have been shown to re-sensitize chemoresistant tumors. Here we provide a comprehensive review of the current advancements in EC DNA methylation to underscore a potential approach to its detection and treatment.
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Affiliation(s)
- He Wang
- Department of Pathology, Yale School of Medicine, Yale UniversityNew Haven, Connecticut, United States
| | - Samuel M DeFina
- Department of Pathology, Yale School of Medicine, Yale UniversityNew Haven, Connecticut, United States
| | - Manisha Bajpai
- Department of Medicine-Gastroenterology and Hepatology, Rutgers-Robert Wood Johnson Medical School, Rutgers The State University of New JerseyNew Brunswick, NJ, United States
| | - Qin Yan
- Department of Pathology, Yale School of Medicine, Yale UniversityNew Haven, Connecticut, United States
| | - Lei Yang
- Department of Pathology, Yale School of Medicine, Yale UniversityNew Haven, Connecticut, United States
| | - Zhongren Zhou
- Department of Pathology & Laboratory Medicine, Rutgers-Robert Wood Johnson Medical School, Rutgers The State University of New JerseyNew Brunswick, NJ, United States
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4
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Mahmoudian RA, Farshchian M, Abbaszadegan MR. Genetically engineered mouse models of esophageal cancer. Exp Cell Res 2021; 406:112757. [PMID: 34331909 DOI: 10.1016/j.yexcr.2021.112757] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 07/10/2021] [Accepted: 07/26/2021] [Indexed: 12/13/2022]
Abstract
BACKGROUND Esophageal cancer is the most common cause of cancer-related death worldwide with a diverse geographical distribution, poor prognosis, and diagnosis in advanced stages of the disease. Identification of the mechanisms involved in esophageal cancer development is evaluative to improve outcomes for patients. Genetically engineered mouse models (GEMMs) of cancer provide the physiologic, molecular, and histologic features of the human tumors to determine the pathogenesis and treatments for cancer, hence exhibiting a source of tremendous potential for oncology research. The advancement of cancer modeling in mice has improved to the extent that researchers can observe and manipulate the disease process in a specific manner. Despite the significant differences between mice and humans, mice can be great models for human oncology researches due to similarities between them at the molecular and physiological levels. Due to most of the existing esophageal cancer GEMMs do not propose an ideal system for pathogenesis of the disease, genetic risks, and microenvironment exposure, so identification of challenges in GEM modeling and well-developed technologies are required to obtain the most value for patients. In this review, we describe the biology of human and mouse, followed by the exciting esophageal cancer mouse models with a discussion of applicability and challenges of these models for generating new GEMMs in future studies.
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Affiliation(s)
| | - Moein Farshchian
- Stem Cell and Regenerative Medicine Research Group, Academic Center for Education, Culture and Research (ACECR), Khorasan Razavi, Mashhad, Iran.
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Yang J, Liu X, Cao S, Dong X, Rao S, Cai K. Understanding Esophageal Cancer: The Challenges and Opportunities for the Next Decade. Front Oncol 2020; 10:1727. [PMID: 33014854 PMCID: PMC7511760 DOI: 10.3389/fonc.2020.01727] [Citation(s) in RCA: 96] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 08/03/2020] [Indexed: 12/22/2022] Open
Abstract
Esophageal cancer (EC) is the seventh most common cancer worldwide with over 570,000 new cases annually. In China, the incidence of EC is particularly high where approximately 90% of cases are defined as esophageal squamous cell carcinoma (ESCC). Although various risk factors have been identified, the knowledge of genetic drivers for ESCC is still limited due to high mutational loading of the cancer and lack of appropriate EC models, resulting in inadequate treatment choices for EC patients. Currently, surgery, chemotherapy, radiation, and limited targeted therapy options can only bring dismal survival advantages; thus, the prognosis for ESCC is very poor. However, cancer immunotherapy has unleashed a new era of cancer treatment with extraordinary therapeutic benefits for cancer patients, including EC patients. This review discusses the latest understanding of the risk factors and clinical rational for EC treatment and provides accumulated information, which describes the ongoing development of immunotherapy for EC with a specific emphasis on ESCC, the most prevalent EC subtype in the Chinese population.
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Affiliation(s)
| | | | | | | | - Shuan Rao
- Department of Thoracic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Kaican Cai
- Department of Thoracic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
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6
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Kashima H, Noma K, Ohara T, Kato T, Katsura Y, Komoto S, Sato H, Katsube R, Ninomiya T, Tazawa H, Shirakawa Y, Fujiwara T. Cancer-associated fibroblasts (CAFs) promote the lymph node metastasis of esophageal squamous cell carcinoma. Int J Cancer 2018; 144:828-840. [PMID: 30367467 DOI: 10.1002/ijc.31953] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 09/29/2018] [Accepted: 10/11/2018] [Indexed: 12/11/2022]
Abstract
Lymph node metastasis is a pathognomonic feature of spreading tumors, and overcoming metastasis is a challenge in attaining more favorable clinical outcomes. Esophageal cancer is an aggressive tumor for which lymph node metastasis is a strong poor prognostic factor, and the tumor microenvironment (TME), and cancer-associated fibroblasts (CAFs) in particular, has been implicated in esophageal cancer progression. CAFs play a central role in the TME and have been reported to provide suitable conditions for the progression of esophageal cancer, similar to their role in other malignancies. However, little is known concerning the relevance of CAFs to the lymph node metastasis of esophageal cancer. Here, we used clinical samples of esophageal cancer to reveal that CAFs promote lymph node metastasis and subsequently verified the intercellular relationships in vitro and in vivo using an orthotopic metastatic mouse model. In the analysis of clinical samples, FAP+ CAFs were strongly associated with lymph node metastasis rather than with other prognostic factors. Furthermore, CAFs affected the ability of esophageal cancer cells to acquire metastatic phenotypes in vitro; this finding was confirmed by data from an in vivo orthotopic metastatic mouse model showing that the number of lymph node metastases increased upon injection of cocultured cancer cells and CAFs. In summary, we verified in vitro and in vivo that the accumulation of CAFs enhances the lymph node metastasis of ESCC. Our data suggest that CAF targeted therapy can reduce lymph node metastasis and improve the prognosis of patients with esophageal cancer in the future.
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Affiliation(s)
- Hajime Kashima
- Department of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Kazuhiro Noma
- Department of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Toshiaki Ohara
- Department of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan.,Department of Pathology & Experimental Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Takuya Kato
- Department of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Yuki Katsura
- Department of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Satoshi Komoto
- Department of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Hiroaki Sato
- Department of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Ryoichi Katsube
- Department of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Takayuki Ninomiya
- Department of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Hiroshi Tazawa
- Department of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan.,Center for Innovative Clinical Medicine, Okayama University Hospital, Okayama, Japan
| | - Yasuhiro Shirakawa
- Department of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Toshiyoshi Fujiwara
- Department of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
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7
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Lee NP, Chan CM, Tung LN, Wang HK, Law S. Tumor xenograft animal models for esophageal squamous cell carcinoma. J Biomed Sci 2018; 25:66. [PMID: 30157855 PMCID: PMC6116446 DOI: 10.1186/s12929-018-0468-7] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2018] [Accepted: 08/24/2018] [Indexed: 12/12/2022] Open
Abstract
Esophageal squamous cell carcinoma (ESCC) is the predominant subtype of esophageal cancer worldwide and highly prevalent in less developed regions. Management of ESCC is challenging and involves multimodal treatments. Patient prognosis is generally poor especially for those diagnosed in advanced disease stage. One factor contributing to this clinical dismal is the incomplete understanding of disease mechanism, for which this situation is further compounded by the presence of other limiting factors for disease diagnosis, patient prognosis and treatments. Tumor xenograft animal models including subcutaneous tumor xenograft model, orthotopic tumor xenograft model and patient-derived tumor xenograft model are vital tools for ESCC research. Establishment of tumor xenograft models involves the implantation of human ESCC cells/xenografts/tissues into immunodeficient animals, in which mice are most commonly used. Different tumor xenograft models have their own advantages and limitations, and these features serve as key factors to determine the use of these models at different stages of research. Apart from their routine use on basic research to understand disease mechanism of ESCC, tumor xenograft models are actively employed for undertaking preclinical drug screening project and biomedical imaging research.
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Affiliation(s)
- Nikki P Lee
- Department of Surgery, The University of Hong Kong, Faculty of Medicine Building, 21 Sassoon Road, Pokfulam, Hong Kong.
| | - Chung Man Chan
- Department of Surgery, The University of Hong Kong, Faculty of Medicine Building, 21 Sassoon Road, Pokfulam, Hong Kong
| | - Lai Nar Tung
- Department of Surgery, The University of Hong Kong, Faculty of Medicine Building, 21 Sassoon Road, Pokfulam, Hong Kong
| | - Hector K Wang
- Department of Surgery, The University of Hong Kong, Faculty of Medicine Building, 21 Sassoon Road, Pokfulam, Hong Kong
| | - Simon Law
- Department of Surgery, The University of Hong Kong, Faculty of Medicine Building, 21 Sassoon Road, Pokfulam, Hong Kong
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8
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Cui H, Zhang S, Zhou H, Guo L. Direct Downregulation of B-Cell Translocation Gene 3 by microRNA-93 Is Required for Desensitizing Esophageal Cancer to Radiotherapy. Dig Dis Sci 2017; 62:1995-2003. [PMID: 28434073 DOI: 10.1007/s10620-017-4579-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Accepted: 04/12/2017] [Indexed: 12/12/2022]
Abstract
BACKGROUND Esophageal squamous carcinoma (ESC) is one of the most fatal malignancies worldwide with increasing occurrences yet poor outcome. MicroRNAs were reported to play roles in ESC. AIMS We aimed to understand how miRNAs affect the radiotherapy resistance of ESC. METHODS MicroRNA assays, real-time PCR, and Western blot were performed for expression analysis of miR-93 and BTG3. Luciferase activity assay was conducted with mutated B-cell translocation gene 3 (BTG3) 3'-UTR sequence in the 3' end of luciferase sequence with miR-93 inhibitor. ESC cells were treated with irradiation (IR) and clonogenic assay was utilized to detect the cell viability. Human ESC xenograft mouse model was established and subjected to target IR treatment followed by tumor size analysis. RESULTS MiR-93 was decreased and BTG3 was increased in ESC cells, with negative correlation of their expression in ESC tissues. MiR-93 directly targeted BTG3 3'-UTR by luciferase activity assay. Either miR-93 inhibition or BTG3 overexpression decreased radiation resistance. Furthermore, miR-93 inhibition suppressed radiation resistance through BTG3. CONCLUSIONS Direct downregulation of BTG3 by miR-93 is able to render ESC resistant to radiotherapy, and both BTG3 and miR-93 may potentially serve as clinical markers for ESC and contribute to the treatment of ESC.
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Affiliation(s)
- Hujun Cui
- Department of Oncology, Affiliated Hongqi Hospital, Mudanjiang Medical University, Mudanjiang, 157011, China
| | - Shengqiang Zhang
- Department of Thoracic Surgery, Affiliated Hongqi Hospital, Mudanjiang Medical University, Mudanjiang, 157011, China
| | - Hongbo Zhou
- Department of Oncology, Affiliated Hongqi Hospital, Mudanjiang Medical University, Mudanjiang, 157011, China
| | - Ling Guo
- Department of Pathology, Affiliated Second Hospital, Mudanjiang Medical University, Mudanjiang, 157009, China.
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Wang J, Li L, Jiang M, Li Y. MicroRNA-195 inhibits human gastric cancer by directly targeting basic fibroblast growth factor. Clin Transl Oncol 2017; 19:1320-1328. [PMID: 28500362 DOI: 10.1007/s12094-017-1668-4] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Accepted: 05/03/2017] [Indexed: 12/13/2022]
Abstract
PURPOSE Gastric cancer (GC) is one of the fatal malignancies worldwide with high occurrences but poor outcomes. bFGF has been shown to play significant roles in GC. Yet, whether bFGF affects the development of GC is less studied. METHODS MicroRNA assays, real-time PCR, and western blot were conducted for expression analysis of miR-195-5p and basic fibroblast growth factor (bFGF). Luciferase activity was measured with mutated bFGF 3'-UTR sequence at the 3' end of the luciferase gene. Two GC cell lines, SNU-1 and KATO-3 overexpressing miR-195-5p and bFGF were subjected to wound healing assay and transwell invasion assay. Mouse GC xenograft model was established and subjected to tumor size analysis. RESULTS Expression levels of miR-195-5p and bFGF showed negative correlation in human GC tissues. MiR-195-5p directly targeted bFGF 3'-UTR as demonstrated by luciferase activity assay. MiR-195-5p, through downregulating bFGF, inhibited the migration and invasion of SNU-1 and KATO-3 cells, as well as tumorigenesis in a xenograft mouse model, which could be restored by re-introduction of bFGF. CONCLUSIONS MiR-195-5p inhibits tumorigenesis of GC through suppressing bFGF, which supports both miR-195-5p and bFGF as potential therapeutic targets in the treatment of GC.
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Affiliation(s)
- J Wang
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, 218 Jixi Road, Hefei, 230032, Anhui, China.,Department of General Surgery, Anhui Medical University Affiliated Hefei Hospital, Hefei Second People's Hospital, GuangDe Road, Hefei, 230011, Anhui, China
| | - L Li
- Department of General Surgery, Anhui Medical University Affiliated Hefei Hospital, Hefei Second People's Hospital, GuangDe Road, Hefei, 230011, Anhui, China
| | - M Jiang
- Department of General Surgery, Anhui Medical University Affiliated Hefei Hospital, Hefei Second People's Hospital, GuangDe Road, Hefei, 230011, Anhui, China
| | - Y Li
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, 218 Jixi Road, Hefei, 230032, Anhui, China.
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