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Inhibition of BMI-1 Induces Apoptosis through Downregulation of DUB3-Mediated Mcl-1 Stabilization. Int J Mol Sci 2021; 22:ijms221810107. [PMID: 34576269 PMCID: PMC8472307 DOI: 10.3390/ijms221810107] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 09/16/2021] [Accepted: 09/17/2021] [Indexed: 01/11/2023] Open
Abstract
BMI-1, a polycomb ring finger oncogene, is highly expressed in multiple cancer cells and is involved in cancer cell proliferation, invasion, and apoptosis. BMI-1 represents a cancer stemness marker that is associated with the regulation of stem cell self-renewal. In this study, pharmacological inhibition (PTC596) or knockdown (siRNA) of BMI-1 reduced cancer stem-like cells and enhanced cancer cell death. Mechanistically, the inhibition of BMI-1 induced the downregulation of Mcl-1 protein, but not Mcl-1 mRNA. PTC596 downregulated Mcl-1 protein expression at the post-translational level through the proteasome-ubiquitin system. PTC596 and BMI-1 siRNA induced downregulation of DUB3 deubiquitinase, which was strongly linked to Mcl-1 destabilization. Furthermore, overexpression of Mcl-1 or DUB3 inhibited apoptosis by PTC596. Taken together, our findings reveal that the inhibition of BMI-1 induces Mcl-1 destabilization through downregulation of DUB3, resulting in the induction of cancer cell death.
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Pereira D, Sequeira I. A Scarless Healing Tale: Comparing Homeostasis and Wound Healing of Oral Mucosa With Skin and Oesophagus. Front Cell Dev Biol 2021; 9:682143. [PMID: 34381771 PMCID: PMC8350526 DOI: 10.3389/fcell.2021.682143] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 06/24/2021] [Indexed: 12/14/2022] Open
Abstract
Epithelial tissues are the most rapidly dividing tissues in the body, holding a natural ability for renewal and regeneration. This ability is crucial for survival as epithelia are essential to provide the ultimate barrier against the external environment, protecting the underlying tissues. Tissue stem and progenitor cells are responsible for self-renewal and repair during homeostasis and following injury. Upon wounding, epithelial tissues undergo different phases of haemostasis, inflammation, proliferation and remodelling, often resulting in fibrosis and scarring. In this review, we explore the phenotypic differences between the skin, the oesophagus and the oral mucosa. We discuss the plasticity of these epithelial stem cells and contribution of different fibroblast subpopulations for tissue regeneration and wound healing. While these epithelial tissues share global mechanisms of stem cell behaviour for tissue renewal and regeneration, the oral mucosa is known for its outstanding healing potential with minimal scarring. We aim to provide an updated review of recent studies that combined cell therapy with bioengineering exporting the unique scarless properties of the oral mucosa to improve skin and oesophageal wound healing and to reduce fibrotic tissue formation. These advances open new avenues toward the ultimate goal of achieving scarless wound healing.
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Affiliation(s)
| | - Inês Sequeira
- Institute of Dentistry, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
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Zhao Q, Zhu X, Ke JM, Su XY, Yi J, Wu DL, Lin J, Deng ZQ. Circular RNA BMI1 Serves as a Potential Target for Diagnosis and Treatment in Esophageal Cancer. Technol Cancer Res Treat 2021; 20:15330338211033075. [PMID: 34278876 PMCID: PMC8293847 DOI: 10.1177/15330338211033075] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
AIMS Previous studies have confirmed that BMI1 is elevated in esophageal cancer, which is a potential therapeutic target for esophageal cancer. However, the clinical significance of circular RNA BMI1 (circ-BMI1) in esophageal cancer is not yet clear. Herein, we revealed the clinical implication of circ-BMI1 in esophageal cancer, and provided a theoretical basis for molecular diagnosis and potential targeted therapy of esophageal cancer. METHODS Firstly, 10 fresh paired esophageal cancer tissues and paracancer tissues, 49 esophageal cancer serum samples and 28 healthy control serum samples were involved in our study. Differential expression and clinical significance of circ-BMI1 in esophageal cancer patients and healthy controls were evaluated by quantitative Real-time RT-PCR (RT-qPCR). Secondly, effects of circ-BMI1 differential expression on biological function of esophageal cancer cell line Eca109 were analyzed. Effects of circ-BMI1 on cell proliferation, migration and colony forming ability were evaluated by CCK-8, wound healing, and colony-forming assay. Cell apoptosis, drug sensitivity tests were also be conducted. Finally, influence of Eca109 cells differentially expressed by circ-BMI1 on tumorigenicity in nude mice was studied. RESULTS Expression of circ-BMI1 in serum and tissues of esophageal cancer patients was significantly decreased compared to controls (P < 0.001 and P = 0.003, respectively). Area under the receiver operating characteristic curve (ROC) was 0.726. Cell proliferation, migration and colony forming ability of circBMI1-Eca109 cells were obviously decreased than that of NC-Eca109 cells (P < 0.05). circBMI1-Eca109 cells were more sensitive to 5-fluorouracil and cisplatin, and tumor volume of nude mice in circBMI1-Eca109 group was smaller (P < 0.05). CONCLUSIONS The study indicated that expression of circ-BMI1 was significantly down-regulated in esophageal cancer. Overexpression of circ-BMI1 inhibited proliferation, migration, colony formation of Eca109 cells, and tumor growth of Eca109 cells in nude mice. circ-BMI1 may be a potential target for diagnosis and treatment in esophageal cancer.
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Affiliation(s)
- Qian Zhao
- Laboratory Center, Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu, People's Republic of China
| | - Xin Zhu
- Laboratory Center, Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu, People's Republic of China
| | - Jin-Ming Ke
- Faculty of Forestry, Zhejiang A&F University, Hangzhou, Zhejiang, People's Republic of China
| | - Xiao-Yu Su
- Laboratory Center, Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu, People's Republic of China
| | - Jing Yi
- Laboratory Center, Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu, People's Republic of China
| | - De-Long Wu
- Laboratory Center, Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu, People's Republic of China
| | - Jiang Lin
- Laboratory Center, Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu, People's Republic of China
| | - Zhao-Qun Deng
- Laboratory Center, Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu, People's Republic of China
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Tumor-associated antigens and their antibodies in the screening, diagnosis, and monitoring of esophageal cancers. Eur J Gastroenterol Hepatol 2020; 32:779-788. [PMID: 32243347 DOI: 10.1097/meg.0000000000001718] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Despite the advances in the treatment and management, esophageal cancers continue to carry a dismal prognosis with an overall 5-year survival rate ranging from 15 to 25%. Delayed onset of symptoms and lack of effective screening methods and guidelines for diagnosis of the early disease contribute to the high mortality rate of esophageal cancers. Detection of esophageal cancer at their early stage is really a challenge for physicians including primary care physicians, gastroenterologists and oncologists. Although imaging, endoscopy and biopsy have been proved to be useful diagnostic tools for esophageal cancers, their diagnostic accuracy is unsatisfactory. In addition, expensive costs, invasiveness and special training operator have limited the clinical application of these tools. Recently, tumor-associated antigens (TAAs) and their antibodies have been reported to be potential markers in esophageal cancer screening, diagnosis, monitoring and prognostication. Because TAAs and their antibodies have the advantages of inexpensive cost, noninvasiveness and easy access, they have attracted much attention as an affordable option for early esophageal cancer diagnosis. In this review, we summarized the advances in TAAs and their antibodies in esophageal cancer screening, diagnosis, monitoring and prognostication.
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Zhu K, Li K, Yuan DW, Xu G, Kang L, Dang CX, Zhang Y. Clinicopathological and Prognostic Significance of Expression of B-Cell-Specific Moloney Murine Leukemia Virus Insertion Site 1 (BMI-1) Gene and Protein in Gastrointestinal Stromal Tumors. Med Sci Monit 2018; 24:6414-6421. [PMID: 30209248 PMCID: PMC6149236 DOI: 10.12659/msm.909443] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Accepted: 05/08/2018] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Gastrointestinal stromal tumor (GIST) is an uncommon visceral sarcoma that arises predominantly in the gastrointestinal tract. Since GISTs are encountered infrequently and inflexible to traditional therapy, the aim of the present study was to explore the correlation of B-cell-specific Moloney murine leukemia virus insertion site 1 (BMI-1) mRNA and BMI-1 protein levels with the clinicopathological characteristics and prognosis significance of GISTs. MATERIAL AND METHODS GIST tissues and normal tissues were collected from 156 patients who had undergone surgical treatment. RT-qPCR and immunohistochemistry were used to measure the BMI-1 mRNA and protein levels in GIST tissues and normal tissues. Univariate survival analysis was used for determination of the factors that affect prognosis of GIST patients. Cox proportional hazards model was plotted to determine the independent risk factors for prognosis of GIST patients. RESULTS The BMI-1 mRNA and protein levels in GIST tissues were higher than those in normal tissues. BMI-1 mRNA and positive protein levels were correlated with the National Institutes of Health (NIH) risk grade, tumor diameter and infiltration, and metastasis. There was a short survival period for the patients with a positive protein level and a high mRNA level of BMI-1. The site of primary tumor, tumor diameter, NIH risk grade, infiltration, and metastasis, as well as BMI-1 mRNA and protein levels were independent risk factors for prognosis of GIST patients. CONCLUSIONS Taken together, these findings suggest there might be a relationship between BMI-1 mRNA and protein levels, and clinicopathological characteristics, including NIH risk grade, tumor size as well as infiltration and metastasis, of GIST patients. In addition, BMI-1 mRNA and protein levels were identified as independent risk factors for prognosis of GIST patients.
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Affiliation(s)
- Kun Zhu
- Department of Oncology Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, P.R. China
| | - Kang Li
- Department of Oncology Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, P.R. China
| | - Da-Wei Yuan
- Department of Oncology Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, P.R. China
| | - Gang Xu
- Department of Oncology Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, P.R. China
| | - Li Kang
- Department of Thoracic Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, P.R. China
| | - Cheng-Xue Dang
- Department of Oncology Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, P.R. China
| | - Yong Zhang
- Department of Oncology Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, P.R. China
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Tamatani T, Takamaru N, Ohe G, Akita K, Nakagawa T, Miyamoto Y. Expression of CD44, CD44v9, ABCG2, CD24, Bmi-1 and ALDH1 in stage I and II oral squamous cell carcinoma and their association with clinicopathological factors. Oncol Lett 2018; 16:1133-1140. [PMID: 29963189 DOI: 10.3892/ol.2018.8703] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Accepted: 04/11/2018] [Indexed: 12/28/2022] Open
Abstract
Cancer stem cells (CSCs) exhibit self-replication, self-differentiation, drug resistance and immune evasion activities. In recent years CSCs have become increasingly important for the treatment of malignant tumors. CSCs express specific markers, including cluster of differentiation (CD)44, CD44 variant 9 (CD44v9), ATP-binding cassette sub-family G member 2 (ABCG2), CD24, B lymphoma Mo-MLV insertion region 1 homolog (BMI-1) and aldehyde dehydrogenase 1 (ALDH1). However, the prognostic value of their expression in patients with oral squamous cell carcinoma (OSCC) are not well known. The present study evaluated these markers in stage I and II patients with OSCC and examined the association between T classification, histological differentiation, classification of invasion mode, lymph node metastasis and disease-free survival rate. Tissue specimens were obtained from 70 patients with stage I or II OSCC following either surgery or biopsy. Immunohistochemistry was performed and positive staining was defiend as 10% positive cells. CD44 and CD44v9 expressions were strongly detected in all OSCC tissues compared with normal epithelial cells. A total of 22 (31.4%) cases expressed ABCG2 and there was a significant association between ABCG2 expression and invasion. A total of 41 cases (59.0%) expressed CD24 and there was a significant association between CD24 expression and invasion. A total of 33 cases (47.1%) expressed BMI-1 and there was a significant association between BMI-1 expression and the disease-free survival rate. A total of 18 cases (25.7%) expressed ALDH1. Although there was no association between ALDH1 expression and T classification, there were significant associations between ALDH1 expression and histological differentiation, invasion mode, metastasis and the disease-free survival rate. Multivariate analysis revealed that ALDH1 expression was the only prognostic factor for disease-free survival rate. The results of the present study suggest that the positivity of ALDH1 detected in patients with OSCC correlates with the number of cells undergoing epithelial mesenchymal transition and metastasis. These findings indicated that the expression of ALDH1 may be an effective prognostic marker indicating the survival of patients with stage I and II OSCC.
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Affiliation(s)
- Tetsuya Tamatani
- Department of Oral Surgery, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770-8504, Japan
| | - Natsumi Takamaru
- Department of Oral Surgery, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770-8504, Japan
| | - Go Ohe
- Department of Oral Surgery, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770-8504, Japan
| | - Kazuya Akita
- Department of Oral Surgery, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770-8504, Japan
| | - Takayuki Nakagawa
- Department of Oral Surgery, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770-8504, Japan
| | - Youji Miyamoto
- Department of Oral Surgery, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770-8504, Japan
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Somatic DNA Copy-Number Alterations Detection for Esophageal Adenocarcinoma Using Digital Polymerase Chain Reaction. Methods Mol Biol 2018. [PMID: 29600372 DOI: 10.1007/978-1-4939-7734-5_18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
Abstract
Somatic copy-number alterations are commonly found in cancer and play key roles in activating oncogenes and deactivating tumor suppressor genes. Digital polymerase chain reaction is an effective way to detect the changes in copy number. In esophageal adenocarcinoma, detection of somatic copy-number alterations could predict the prognosis of patients as well as the response to therapy. This chapter will review the methods involved in digital polymerase chain reaction for the research or potential clinical applications in esophageal adenocarcinoma.
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Liu J, Liu K, Jiang X, Wang X, Chen Y, Cui X, Pang L, Li S, Liu C, Zou H, Yang L, Zhao J, Qi Y, Hu JM, Li F. Clinicopathological significance of Bmi-1 overexpression in esophageal cancer: a meta-analysis. Biomark Med 2017; 12:71-81. [PMID: 29240461 DOI: 10.2217/bmm-2017-0092] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
AIM The clinicopathological effects of Bmi-1 expression in esophageal cancer remain widely disputed. Our aim was to clarify this relationship. METHODS Available studies were retrieved from diverse databases. Review Manager 5.3 and Stata 12.0 software were used to identify correlations between Bmi-1 expression and the clinicopathological features of esophageal cancer. RESULTS From 16 studies, 1523 esophageal cancer patients were analyzed. Meta-analysis demonstrated that Bmi-1 overexpression was associated with differentiation (p = 0.03), tumor/node/metastasis stage (p = 0.02), depth of invasion (p = 0.0006) and lymph node metastasis (p = 0.008). CONCLUSION The expression of Bmi-1 is associated with the progression and invasion of esophageal cancer.
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Affiliation(s)
- Jihong Liu
- Department of Pathology & Key Laboratory for Xinjiang Endemic & Ethnic Diseases, Shihezi University School of Medicine, Xinjiang 832002, PR China
| | - Kai Liu
- Department of Pathology & Key Laboratory for Xinjiang Endemic & Ethnic Diseases, Shihezi University School of Medicine, Xinjiang 832002, PR China
| | - Xianli Jiang
- Department of Pathology & Key Laboratory for Xinjiang Endemic & Ethnic Diseases, Shihezi University School of Medicine, Xinjiang 832002, PR China
| | - Xueli Wang
- Department of Pathology & Key Laboratory for Xinjiang Endemic & Ethnic Diseases, Shihezi University School of Medicine, Xinjiang 832002, PR China
| | - Yunzhao Chen
- Department of Pathology & Key Laboratory for Xinjiang Endemic & Ethnic Diseases, Shihezi University School of Medicine, Xinjiang 832002, PR China
| | - Xiaobin Cui
- Department of Pathology & Key Laboratory for Xinjiang Endemic & Ethnic Diseases, Shihezi University School of Medicine, Xinjiang 832002, PR China
| | - Lijuan Pang
- Department of Pathology & Key Laboratory for Xinjiang Endemic & Ethnic Diseases, Shihezi University School of Medicine, Xinjiang 832002, PR China
| | - Shugang Li
- Department of Preventive Medicine, Shihezi University School of Medicine, Xinjiang 832002, PR China
| | - Chunxia Liu
- Department of Pathology & Key Laboratory for Xinjiang Endemic & Ethnic Diseases, Shihezi University School of Medicine, Xinjiang 832002, PR China
| | - Hong Zou
- Department of Pathology & Key Laboratory for Xinjiang Endemic & Ethnic Diseases, Shihezi University School of Medicine, Xinjiang 832002, PR China
| | - Lan Yang
- Department of Pathology & Key Laboratory for Xinjiang Endemic & Ethnic Diseases, Shihezi University School of Medicine, Xinjiang 832002, PR China
| | - Jin Zhao
- Department of Pathology & Key Laboratory for Xinjiang Endemic & Ethnic Diseases, Shihezi University School of Medicine, Xinjiang 832002, PR China
| | - Yan Qi
- Department of Pathology & Key Laboratory for Xinjiang Endemic & Ethnic Diseases, Shihezi University School of Medicine, Xinjiang 832002, PR China
| | - Jian Ming Hu
- Department of Pathology & Key Laboratory for Xinjiang Endemic & Ethnic Diseases, Shihezi University School of Medicine, Xinjiang 832002, PR China
| | - Feng Li
- Department of Pathology & Key Laboratory for Xinjiang Endemic & Ethnic Diseases, Shihezi University School of Medicine, Xinjiang 832002, PR China.,Department of Pathology, Beijing ChaoYang Hospital, Capital Medical University, Beijing 100020, PR China
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Ji H, Cao M, Ren K, Sun N, Wang W, Zhu Q, Zang Q, Jiang Z. Expression and Clinicopathological Significance of Mel-18 and Bmi-1 in Esophageal Squamous Cell Carcinoma. Technol Cancer Res Treat 2017; 16:828-834. [PMID: 28425347 PMCID: PMC5762038 DOI: 10.1177/1533034617705055] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
The Polycomb group genes are a general class of regulators that are responsible for maintaining homeotic gene expression throughout cell division. Polycomb group expression plays an important role in oncogenesis of several types of human cancer. Melanoma nuclear protein 18 and B-cell-specific Moloney leukemia virus insert site 1 are key Polycomb group proteins. Studies have shown that melanoma nuclear protein 18 is a potential tumor suppression, and B-cell-specific Moloney leukemia virus insert site 1 is overexpressed in several human malignancies. However, the roles of melanoma nuclear protein 18 and B-cell-specific Moloney leukemia virus insert site 1 in esophageal squamous cell carcinoma are still unclear. In this study, we analyzed the expression levels of melanoma nuclear protein 18 and B-cell-specific Moloney leukemia virus insert site 1 in 89 esophageal cancer tissues and paired normal mucosal tissues using immunohistochemistry, Western blotting, and quantitative real-time polymerase chain reaction analyses. We found that the expression of melanoma nuclear protein 18 in the carcinoma tissues was significantly lower than that in the noncancerous mucosal tissues (P < .05), and B-cell-specific Moloney leukemia virus insert site 1 expression in the carcinoma tissues was significantly higher than that in the noncancerous mucosal tissues (P < .05). In addition, the expression of melanoma nuclear protein 18 was correlated with clinical stage, depth of invasion, and lymph node metastasis (P < .05) but was not correlated with gender, age, degree of differentiation, or disease-free survival (P > .05). B-cell-specific Moloney leukemia virus insert site 1 expression was strongly correlated with the degree of differentiation, clinical stage, and lymph node metastasis (P <.05) but was not correlated with the gender, age, depth of invasion or disease-free survival (P > .05). Moreover, there was a negative correlation between melanoma nuclear protein 18 and B-cell-specific Moloney leukemia virus insert site 1 expressions in esophageal squamous cell carcinoma (P < .05). Our study suggests that melanoma nuclear protein 18 and B-cell-specific Moloney leukemia virus insert site 1 may play a crucial role in esophageal squamous cell carcinoma. Melanoma nuclear protein 18 or B-cell-specific Moloney leukemia virus insert site 1 may be a potential biomarker for diagnosis and prognosis of esophageal squamous cell carcinoma.
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Affiliation(s)
- Huaijun Ji
- Division of Surgery, Graduate Department, Weifang Medical College, Weifang, Shandong, People's Republic of China
| | - Ming Cao
- Department of Thoracic Surgery, Qianfoshan Hospital Affiliated to Shandong University, Jinan, Shandong, People's Republic of China
| | - Kunlun Ren
- Division of Surgery, Graduate Department, Weifang Medical College, Weifang, Shandong, People's Republic of China
| | - Ningbo Sun
- Department of Thoracic Surgery, Shengli Oilfield Central Hospital, Dongying, Shandong, People's Republic of China
| | - Wei Wang
- Department of Thoracic Surgery, Qianfoshan Hospital Affiliated to Shandong University, Jinan, Shandong, People's Republic of China
| | - Qiang Zhu
- Department of Thoracic Surgery, Qianfoshan Hospital Affiliated to Shandong University, Jinan, Shandong, People's Republic of China
| | - Qi Zang
- Department of Thoracic Surgery, Qianfoshan Hospital Affiliated to Shandong University, Jinan, Shandong, People's Republic of China
| | - Zhongmin Jiang
- Department of Thoracic Surgery, Qianfoshan Hospital Affiliated to Shandong University, Jinan, Shandong, People's Republic of China
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Peng HX, Liu XD, Luo ZY, Zhang XH, Luo XQ, Chen X, Jiang H, Xu L. Upregulation of the proto-oncogene Bmi-1 predicts a poor prognosis in pediatric acute lymphoblastic leukemia. BMC Cancer 2017; 17:76. [PMID: 28122538 PMCID: PMC5264321 DOI: 10.1186/s12885-017-3049-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Accepted: 01/09/2017] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Bmi-1, the B cell-specific moloney murine leukemia virus insertion site 1, is a member of the Polycomb-group (PcG) family and acts as an oncogene in various tumors; however, its expression related to the prognosis of pediatric patients with acute lymphoblastic leukemia (ALL) has not been well studied. METHODS The Bmi-1 expression levels in the bone marrow of 104 pediatric ALL patients and 18 normal control subjects were determined by using qRT-PCR. The association between the Bmi-1 expression and the clinicopathological characteristics of pediatric ALL patients was analyzed, and the correlation between Bmi-1 and the prognosis of pediatric ALL was calculated according to the Kaplan-Meier method. Furthermore, the association between Bmi-1 expression and its transcriptional regulator Sall4 was investigated. RESULTS Compared to normal control subjects, patients with primary pediatric ALL exhibited upregulated levels of Bmi-1. However, these levels were sharply decreased in patients who achieved complete remission. A significant positive association between elevated Bmi-1 levels and a poor response to prednisone as well as an increased clinical risk was observed. Patients who overexpressed Bmi-1 at the time of diagnosis had a lower relapse-free survival (RFS) rate (75.8%), whereas patients with lower Bmi-1 expression had an RFS of 94.1%. Furthermore, in ALL patients, the mRNA expression of Bmi-1 was positively correlated to the mRNA expression of Sall4a. CONCLUSIONS Taken together, these data suggest that Bmi-1 could serve as a novel prognostic biomarker in pediatric primary ALL and may be partially regulated by Sall4a. Our study also showed that Bmi-1 could serve as a new therapeutic target for the treatment of pediatric ALL.
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Affiliation(s)
- Hong-Xia Peng
- Department of Hematology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 9 Jinsui Road, Guangzhou, Guangdong, 510623, China
| | - Xiao-Dan Liu
- Division of Birth Cohort Study, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Zi-Yan Luo
- Department of Hematology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 9 Jinsui Road, Guangzhou, Guangdong, 510623, China
| | - Xiao-Hong Zhang
- Department of Hematology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 9 Jinsui Road, Guangzhou, Guangdong, 510623, China
| | - Xue-Qun Luo
- Department of Pediatrics, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Xiao Chen
- Department of Pediatrics, Zhuzhou Central Hospital, Zhuzhou, China
| | - Hua Jiang
- Department of Hematology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 9 Jinsui Road, Guangzhou, Guangdong, 510623, China.
| | - Ling Xu
- Department of Hematology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 9 Jinsui Road, Guangzhou, Guangdong, 510623, China.
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11
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Mu M, Song Y, Zhang B. Expression and survival significance of B-cell-specific Moloney murine leukemia virus integration site 1 and matrix metalloproteinase-9 in non-small-cell lung cancer. Oncol Lett 2016; 12:3715-3722. [PMID: 27900059 PMCID: PMC5104154 DOI: 10.3892/ol.2016.5209] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2014] [Accepted: 08/05/2016] [Indexed: 12/21/2022] Open
Abstract
One of the main challenges in lung cancer research is identifying patients at high risk of progression and metastasis following surgical resection. In the present study, the prognostic significance of B-cell-specific Moloney murine leukemia virus integration site 1 (BMI1) and matrix metalloproteinase-9 (MMP9) in non-small-cell lung cancer (NSCLC) was evaluated. BMI1 and MMP9 expression in tumors from 132 surgical NSCLC patients [squamous cell carcinoma (SCC), n=79; and adenocarcinoma (AD), n=53] was evaluated by immunohistochemistry. The clinical significance was determined using multivariate Cox regression analysis, Kaplan-Meier curves and the log-rank test. High BMI1 expression was more frequent in SCC compared with that in AD (P=0.015). Comparisons between the expression of BMI1 and that of other known biological markers revealed that the expression of BMI1 was correlated with that of MMP9 (χ2=4.241, P=0.039) in SCC. Although an association was not identified between high BMI1 expression and overall survival (OS) in NSCLC or AD, high BMI1 expression was an unfavorable predictor of survival in SCC according to the survival curves (P=0.038). In addition, combined high BMI1 and MMP9 expression levels were significantly correlated with SCC nodal/distant metastasis (χ2=6.392, P=0.014). Multivariate Cox proportional model analysis demonstrated that this combined marker was an independent prognostic indicator of OS in SCC (P=0.025; hazard ratio = 12.963; 95% confidence interval: 1.142–7.637). Therefore, this study demonstrated that combined BMI1 and MMP9 expression may be used as a marker for the progression and metastasis of SCC. These results may aid in the elucidation of the potential mechanism underlying the involvement of BMI1 and MMP9 in tissue-specific SCC progression.
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Affiliation(s)
- Mingkui Mu
- Institute of Hard Tissue Development and Regeneration, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China
| | - Yang Song
- Institute of Hard Tissue Development and Regeneration, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China
| | - Bin Zhang
- Institute of Hard Tissue Development and Regeneration, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China
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Choy B, LaLonde A, Que J, Wu T, Zhou Z. MCM4 and MCM7, potential novel proliferation markers, significantly correlated with Ki-67, Bmi1, and cyclin E expression in esophageal adenocarcinoma, squamous cell carcinoma, and precancerous lesions. Hum Pathol 2016; 57:126-135. [PMID: 27476776 PMCID: PMC5250507 DOI: 10.1016/j.humpath.2016.07.013] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Revised: 07/06/2016] [Accepted: 07/15/2016] [Indexed: 12/09/2022]
Abstract
Minichromosomal maintenance (MCM) proteins are participants of DNA replication and may represent more accurate markers in determining the proliferative fraction within a tumor than proliferative marker Ki-67. Our study investigated the correlation between MCM4 and MCM7 expression and Ki-67, Bmi1, and cyclin E expression in esophageal adenocarcinoma, squamous cell carcinoma, and precancerous lesions. MCM4 and MCM7 expression had similar distribution as Ki-67 and Bmi1 expression in esophageal carcinoma and pre-cancerous lesions. The mean percentage of MCM4, MCM7, and Ki-67 expression increased from squamous epithelium (5.5%, 7.3%, and 5.9%, respectively), to columnar cell metaplasia (11.2, 13.5%, and 3.4%), Barrett's esophagus (27.7%, 35.3%, and 8.3%), low-grade dysplasia (42.6%, 52.2%, and 12.9%), high-grade dysplasia (63.2%, 77.7%, and 29.6%), adenocarcinoma (61.3%, 75.5%, and 24.5%), and squamous cell carcinoma (74.1, 85.4%, and 36.3%). The percentages of MCM4 and MCM7 expression were significantly higher than Ki-67 expression. Using univariate analysis we found a high percentage of MCM4 expression (>70%) to be significantly associated with lymph node metastasis and shorter survival in the adenocarcinoma group. We also demonstrated the percentage of MCM4 and MCM7 expression to be significantly correlated with Ki-67, Bmi1, and cyclin E expression in esophageal carcinoma and precancerous lesions. MCM4 and MCM7 may serve as more sensitive proliferative markers for the evaluation of esophageal lesions.
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Affiliation(s)
- Bonnie Choy
- Department of Pathology, University of Chicago, Chicago, IL 60637
| | - Amy LaLonde
- Department of Biostatistics and Computational Biology, University of Rochester Medical Center, Rochester, NY 14642
| | - Jianwen Que
- Center for Human Development & Division of Digestive and Liver Diseases, Columbia University Medical Center, NY 10032
| | - Tongtong Wu
- Department of Biostatistics and Computational Biology, University of Rochester Medical Center, Rochester, NY 14642
| | - Zhongren Zhou
- Department of Pathology and Laboratory Medicine, University of Rochester, Rochester, NY 14642.
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De Faveri LE, Hurst CD, Roulson JA, Wood H, Sanchez-Carbayo M, Knowles MA, Chapman EJ. Polycomb Repressor Complex 1 Member, BMI1 Contributes to Urothelial Tumorigenesis through p16-Independent Mechanisms. Transl Oncol 2015; 8:387-399. [PMID: 26500029 PMCID: PMC4631094 DOI: 10.1016/j.tranon.2015.08.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Revised: 07/28/2015] [Accepted: 08/10/2015] [Indexed: 01/29/2023] Open
Abstract
Urothelial carcinoma (UC) causes significant morbidity and remains the most expensive cancer to treat because of the need for repeated resections and lifelong monitoring for patients with non-muscle-invasive bladder cancer (NMIBC). Novel therapeutics and stratification approaches are needed to improve the outlook for both NMIBC and muscle-invasive bladder cancer. We investigated the expression and effects of B Lymphoma Mo-MLV Insertion Region 1 (BMI1) in UC. BMI1 was found to be overexpressed in most UC cell lines and primary tumors by quantitative real-time polymerase chain reaction and immunohistochemistry. In contrast to some previous reports, no association with tumor stage or grade was observed in two independent tumor panels. Furthermore, upregulation of BMI1 was detected in premalignant bladder lesions, suggesting a role early in tumorigenesis. BMI1 is not located within a common region of genomic amplification in UC. The CDKN2A locus (which encodes the p16 tumor suppressor gene) is a transcriptional target of BMI1 in some cellular contexts. In UC cell lines and primary tissues, no correlation between BMI1 and p16 expression was observed. Retroviral-mediated overexpression of BMI1 immortalized normal human urothelial cells (NHUC) in vitro and was associated with induction of telomerase activity, bypass of senescence, and repression of differentiation. The effects of BMI1 on gene expression were identified by expression microarray analysis of NHUC-BMI1. Metacore analysis of the gene expression profile implicated downstream effects of BMI1 on α4/β1 integrin-mediated adhesion, cytoskeleton remodeling, and CREB1-mediated transcription.
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Affiliation(s)
- Lia E De Faveri
- Leeds Institute of Cancer and Pathology, St James's University Hospital, Beckett Street, Leeds, LS97TF, UK
| | - Carolyn D Hurst
- Leeds Institute of Cancer and Pathology, St James's University Hospital, Beckett Street, Leeds, LS97TF, UK
| | - Jo-An Roulson
- Department of Pathology and Tumor Biology, St James's University Hospital, Beckett Street, Leeds, LS97TF, UK
| | - Henry Wood
- Leeds Institute of Cancer and Pathology, St James's University Hospital, Beckett Street, Leeds, LS97TF, UK
| | - Marta Sanchez-Carbayo
- Bladder Cancer Group, Lascaray Research Center, University of the Basque Country, UPV/EHU, Vitoria-Gasteiz, Spain
| | - Margaret A Knowles
- Leeds Institute of Cancer and Pathology, St James's University Hospital, Beckett Street, Leeds, LS97TF, UK
| | - Emma J Chapman
- Leeds Institute of Cancer and Pathology, St James's University Hospital, Beckett Street, Leeds, LS97TF, UK.
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Huber AR, Tan D, Sun J, Dean D, Wu T, Zhou Z. High expression of carbonic anhydrase IX is significantly associated with glandular lesions in gastroesophageal junction and with tumorigenesis markers BMI1, MCM4 and MCM7. BMC Gastroenterol 2015; 15:80. [PMID: 26156831 PMCID: PMC4495619 DOI: 10.1186/s12876-015-0310-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Accepted: 06/29/2015] [Indexed: 12/22/2022] Open
Abstract
Background Carbonic anhydrase IX (CA9) is a transmembrane glycoprotein related to hypoxia. Increased CA9 expression has been associated with decreased survival and cancer progression and has been targeted as a potential therapy for several cancers, including esophageal cancer. The reported percentages of expression of CA9 in esophageal adenocarcinoma vary, and CA9 expression in precancerous esophageal lesions has not been well studied. Methods In this study, we investigated CA9 expression in esophageal cancers and in precancerous lesions and explored the association of CA9 expression with prognostic factors and with stem cell and tumorigenesis-related markers including BMI1, cyclin E, ki67, MCM4 and MCM7 expression. Previously constructed tissue microarrays consisting of samples of 7 tissue types (columnar cell metaplasia, Barrett esophagus, low- and high-grade dysplasia, esophageal adenocarcinoma, squamous epithelium, and squamous cell carcinoma) were used for the immunostaining of CA9, BMI1, cyclin E, Ki67, MCM4 and MCM7. Results and discussion CA9 high expression occurred more frequently in glandular mucosa with or without dysplasia than in squamous epithelium or squamous cell carcinoma. Survival duration of esophageal adenocarcinoma did not significantly differ between patients with high CA9 expression and those with low expression. High CA9 expression is significantly associated with BMI1, cyclin E, Ki67, MCM4 and MCM7 expression. Conclusions High CA9 expression may be related to the acidic environment caused by gastroesophageal reflux disease in the gastroesophageal junction and associated with tumorigenesis through BMI1, MCM4 and MCM7.
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Affiliation(s)
- Aaron R Huber
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, 601 Elmwood Avenue, Box 626, Rochester, NY, 14642, USA.
| | - Dongfeng Tan
- Department of Pathology, MD Anderson Cancer Institute, Houston, TX, USA.
| | - Jun Sun
- Biochemistry, Rush University Medical Center, Chicago, IL, USA.
| | - David Dean
- Department of Pediatrics, University of Rochester, Rochester, NY, USA.
| | - Tongtong Wu
- Department of Biostatistics and Computational Biology, University of Rochester, Rochester, NY, USA.
| | - Zhongren Zhou
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, 601 Elmwood Avenue, Box 626, Rochester, NY, 14642, USA.
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Wang MC, Li CL, Cui J, Jiao M, Wu T, Jing LI, Nan KJ. BMI-1, a promising therapeutic target for human cancer. Oncol Lett 2015; 10:583-588. [PMID: 26622537 DOI: 10.3892/ol.2015.3361] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Accepted: 03/12/2015] [Indexed: 12/31/2022] Open
Abstract
BMI-1 oncogene is a member of the polycomb-group gene family and a transcriptional repressor. Overexpression of BMI-1 has been identified in various human cancer tissues and is known to be involved in cancer cell proliferation, cell invasion, distant metastasis, chemosensitivity and patient survival. Accumulating evidence has revealed that BMI-1 is also involved in the regulation of self-renewal, differentiation and tumor initiation of cancer stem cells (CSCs). However, the molecular mechanisms underlying these biological processes remain unclear. The present review summarized the function of BMI-1 in different human cancer types and CSCs, and discussed the signaling pathways in which BMI-1 is potentially involved. In conclusion, BMI-1 may represent a promising target for the prevention and therapy of various cancer types.
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Affiliation(s)
- Min-Cong Wang
- Department of Oncology, The First Affiliated Hospital, College of Medicine of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Chun-Li Li
- Department of Oncology, The First Affiliated Hospital, College of Medicine of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Jie Cui
- Department of Oncology, The First Affiliated Hospital, College of Medicine of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Min Jiao
- Department of Oncology, The First Affiliated Hospital, College of Medicine of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Tao Wu
- Department of Oncology, The First Affiliated Hospital, College of Medicine of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - L I Jing
- Department of Oncology, The First Affiliated Hospital, College of Medicine of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Ke-Jun Nan
- Department of Oncology, The First Affiliated Hospital, College of Medicine of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
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Wang L, Liu JL, Yu L, Liu XX, Wu HM, Lei FY, Wu S, Wang X. Downregulated miR-495 [Corrected] Inhibits the G1-S Phase Transition by Targeting Bmi-1 in Breast Cancer. Medicine (Baltimore) 2015; 94:e718. [PMID: 26020378 PMCID: PMC4616407 DOI: 10.1097/md.0000000000000718] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Bmi-1 (B cell-specific Moloney murine leukemia virus integration site 1) is upregulated in breast cancer and was involved in many malignant progressions of breast cells, including cell proliferation, stem cell pluripotency, and cancer initiation. However, the epigenetic regulatory mechanism of Bmi-1 in breast cancer remains unclear. After analysis of the ArrayExpress dataset GSE45666, we comparatively detected the expression levels of miR-495 in 9 examined breast cancer cell lines, normal breast epithelial cells and 8 pairs of fresh clinical tumor samples. Furthermore, to evaluate the effect of miR-495 on the progression of breast cancer, MCF-7 and MDA-MB-231 were transduced to stably overexpress miR-495. The 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2-H-tetrazolium bromide assay, colony formation assays, 5-Bromo-2-deoxyUridine labeling and immunofluorescence, anchorage-independent growth ability assay, flow cytometry analysis, and luciferase assays were used to test the effect of miR-495 in MCF-7 and MDA-MB-231 cells in vitro. Xenografted tumor model was also used to evaluate the effect of miR-495 in breast cancer. Herein, we found that miR-495, a predicted regulator of Bmi-1, was frequently downregulated in malignant cells and tissues of breast. Upregulation of miR-495 significantly suppressed breast cancer cell proliferation and tumorigenicity via G1-S arrest. Further analysis revealed that miR-495 targeted Bmi-1 through its 3' untranslated region. Moreover, Bmi-1 could neutralize the suppressive effect of miR-495 on cell proliferation and tumorigenicity of breast cancer in vivo. These data suggested that miR-495 could inhibit the G1-S phase transition that leads to proliferation and tumorigenicity inhibition by targeting and suppressing Bmi-1 in breast cancer.
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Affiliation(s)
- Lan Wang
- From the Department of Pathogen Biology and Immunology, School of Basic Courses, Guangdong Pharmaceutical University (LW, H-MW); Department of Medical Oncology, Sun Yat-sen University Cancer Center (JLL); Department of Vascular and Breast Surgery, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou (LY); Department of Plastic Surgery, the First Affiliated Hospital of Sun Yat-sen University (X-XL); State Key Laboratory of Oncology in South China (F-YL, SW); State Key Laboratory of Oncology in Southern China, Department of Experimental Research, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China (XW)
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Zhang X, Yang X, Zhang Y, Liu X, Zheng G, Yang Y, Wang L, Du L, Wang C. Direct serum assay for cell-free bmi-1 mRNA and its potential diagnostic and prognostic value for colorectal cancer. Clin Cancer Res 2014; 21:1225-33. [PMID: 25547677 DOI: 10.1158/1078-0432.ccr-14-1761] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE Cell-free Bmi-1 mRNA is stably detectable in the serum/plasma and is associated with the development and progression of some tumors. Previous methods detecting extracellular Bmi-1 mRNA with RNA extraction are inefficient. This study developed a novel reverse transcription quantitative PCR (RT-qPCR) approach directly applied in serum (RT-qPCR-D) to quantify Bmi-1 mRNA, and assessed its diagnostic and prognostic potential in colorectal cancer. EXPERIMENTAL DESIGN The feasibility of the RT-qPCR-D method was first analyzed in 50 serum samples. Then, using the RT-qPCR-D method, Bmi-1 mRNA expression was validated in serum from an independent cohort of patients with 87 normal colonoscopy, 76 hyperplastic polyp, 82 inflammatory bowel disease, 68 adenoma, and 158 colorectal cancer. Receiver operating characteristic (ROC) curves and Cox analyses were used to evaluate its diagnosis and prognosis value, respectively. RESULTS In a pilot study, levels of Bmi-1 mRNA were increased in colorectal cancer serum samples detected by RT-qPCR-D and significantly associated with results obtained by RT-qPCR. In a validation cohort, serum Bmi-1 mRNA levels were significantly elevated in the colorectal cancer group and the adenoma group when compared with other groups. The area under ROC curve distinguishing colorectal cancer from benign colorectal diseases was 0.888, with 72.2% sensitivity and 94.9% specificity, which was superior to carcinoembryogenic antigen. Bmi-1 mRNA levels were significantly associated with survival. Cox analysis indicated Bmi-1 mRNA was an independent prognostic factor for overall survival. CONCLUSIONS Detection of cell-free Bmi-1 mRNA in serum by RT-qPCR-D is a simple and noninvasive approach and may be used for colorectal cancer diagnosis and prognosis.
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Affiliation(s)
- Xin Zhang
- Department of Clinical Laboratory, Qilu Hospital, Shandong University, Jinan, Shandong Province, China
| | - Xiaoyun Yang
- Department of Gastroenterology, Qilu Hospital, Shandong University, Jinan, Shandong Province, China
| | - Yanli Zhang
- Department of Clinical Laboratory, Traffic Hospital of Shandong Province, Jinan, Shandong Province, China
| | - Xinfeng Liu
- Department of Clinical Laboratory, Traffic Hospital of Shandong Province, Jinan, Shandong Province, China
| | - Guixi Zheng
- Department of Clinical Laboratory, Qilu Hospital, Shandong University, Jinan, Shandong Province, China
| | - Yongmei Yang
- Department of Clinical Laboratory, Qilu Hospital, Shandong University, Jinan, Shandong Province, China
| | - Lili Wang
- Department of Clinical Laboratory, Qilu Hospital, Shandong University, Jinan, Shandong Province, China
| | - Lutao Du
- Department of Clinical Laboratory, Qilu Hospital, Shandong University, Jinan, Shandong Province, China
| | - Chuanxin Wang
- Department of Clinical Laboratory, Qilu Hospital, Shandong University, Jinan, Shandong Province, China.
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18
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Shao Y, Geng Y, Gu W, Ning Z, Jiang J, Pei H. Prognostic role of high Bmi-1 expression in Asian and Caucasian patients with solid tumors: a meta-analysis. Biomed Pharmacother 2014; 68:969-77. [PMID: 25458792 DOI: 10.1016/j.biopha.2014.10.017] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2014] [Accepted: 10/15/2014] [Indexed: 12/14/2022] Open
Abstract
Recently, many studies have shown that the B-cell-specific moloney leukemia virus insertion site 1 (Bmi-1) exhibits altered expression in various cancers and may serve as prognostic biomarkers. We performed a meta-analysis to evaluate the prognostic role of Bmi-1 expression in solid cancers. Studies were recruited by searching PubMed, Embase and the Cochrane Library. Thirty-nine articles including 40 studies were involved in this meta-analysis. Our results indicated that the Bmi-1 showed the opposite prognostic effect in Asian and Caucasian populations. High Bmi-1 expression as a negative predictor for overall survival (OS) in Asian patients (HR=1.96, 95% CI 1.62-2.36), but a positive predictor in Caucasian populations (HR=0.77, 95% CI 0.63-0.93). Furthermore, we took a further subgroup analysis based on tumor type in these two populations, respectively. In Asian cases, high expression of Bmi-1 was associated with poor OS in oesophageal carcinoma (HR=1.93, 95% CI 1.52-2.46), gastric cancer (HR=1.50, 95% CI 1.22-1.85), lung cancer (HR=1.73, 95% CI 1.05-2.85), cervical cancer (HR=2.80, 95% CI 2.26-3.47) and colorectal cancer (HR=3.36, 95% CI 2.19-5.15), rather than in breast cancer and HCC. In Caucasian populations, high expression of Bmi-1 was associated with better OS in breast cancer (HR=0.70, 95% CI 0.51-0.97), but it showed no significance in oesophageal carcinoma. In conclusion, high Bmi-1 expression was significantly associated with poor survival in Asian patients with oesophageal carcinoma, gastric cancer, lung cancer, colorectal cancer and cervical carcinoma, whereas high level of Bmi-1 can predict better prognosis in Caucasian patients with breast cancer.
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Affiliation(s)
- Yingjie Shao
- Department of Radiation Oncology, The Third Affiliated Hospital of Soochow University, 185 Juqian Street, Changzhou 213003, PR China
| | - Yiting Geng
- Department of Oncology, The Third Affiliated Hospital of Soochow University, 185 Juqian Street, Changzhou 213003, PR China
| | - Wendong Gu
- Department of Radiation Oncology, The Third Affiliated Hospital of Soochow University, 185 Juqian Street, Changzhou 213003, PR China
| | - Zhonghua Ning
- Department of Radiation Oncology, The Third Affiliated Hospital of Soochow University, 185 Juqian Street, Changzhou 213003, PR China
| | - Jingting Jiang
- Department of Tumor Biological Treatment, The Third Affiliated Hospital of Soochow University, 185 Juqian Street, Changzhou 213003, PR China.
| | - Honglei Pei
- Department of Radiation Oncology, The Third Affiliated Hospital of Soochow University, 185 Juqian Street, Changzhou 213003, PR China.
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A retrospective review of the prognostic value of ALDH-1, Bmi-1 and Nanog stem cell markers in esophageal squamous cell carcinoma. PLoS One 2014; 9:e105676. [PMID: 25148045 PMCID: PMC4141830 DOI: 10.1371/journal.pone.0105676] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Accepted: 07/22/2014] [Indexed: 01/20/2023] Open
Abstract
Stem cell markers are upregulated in various cancers and have potential as prognostic indicators. The objective of this study was to determine the expression of three stem cell markers, aldehyde dehydrogenase 1 (ALDH-1), B cell-specific Moloney murine leukemia virus integration site 1 (Bmi-1), and Nanog, in esophageal squamous cell carcinoma (ESCC) tissues. Immunohistochemistry was used to measure the expression of ALDH-1, Bmi-1, and Nanog in ESCC tissues from 41 patients who received pre-operative chemoradiation. We evaluated the relationship between expression of these markers, and clinicopathological features, tumor regression grade (TRG), and 5-year overall survival (OS). There were no significant associations of ALDH-1 or Bmi-1 expression with age, gender, clinical stage, and treatments (p>0.05). However, patients with Nanog-positive tumors were significantly older than those whose tumors were Nanog-negative (p = 0.033). TRG after treatment was significantly associated with expression of ALDH-1 (p = 0.001), Bmi-1 (p = 0.004), and Nanog (p<0.001). Although OS was significantly better in patients with low TRGs (p = 0.001), there were no significant correlations between ALDH-1, Bmi-1, or Nanog with OS. Expression of ALDH-1, Bmi-1, and Nanog correlated with TRG, but not OS. Further large studies are necessary to fully elucidate the prognostic value of these stem cell markers for ESCC patients.
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Honing J, Pavlov KV, Meijer C, Smit JK, Boersma-van Ek W, Karrenbeld A, Burgerhof JGM, Kruyt FAE, Plukker JTM. Loss of CD44 and SOX2 Expression is Correlated with a Poor Prognosis in Esophageal Adenocarcinoma Patients. Ann Surg Oncol 2014; 21 Suppl 4:S657-64. [DOI: 10.1245/s10434-014-3763-x] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2013] [Indexed: 12/13/2022]
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Zhang Y, Zhang YL, Chen HM, Pu HW, Ma WJ, Li XM, Ma H, Chen X. Expression of Bmi-1 and PAI-1 in esophageal squamous cell carcinoma. World J Gastroenterol 2014; 20:5533-5539. [PMID: 24833884 PMCID: PMC4017069 DOI: 10.3748/wjg.v20.i18.5533] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2013] [Revised: 02/08/2014] [Accepted: 03/19/2014] [Indexed: 02/06/2023] Open
Abstract
AIM: To determine the correlation between invasiveness, migration and prognosis in esophageal squamous cell carcinoma (ESCC) and expression of the B-cell-specific Moloney leukemia virus insert site 1 (Bmi-1) and plasminogen activator inhibitor-1 (PAI-1).
METHODS: Eighty previously untreated patients who underwent surgical excision of ESCC were included. The expression of Bmi-1 and PAI-1 was examined immunohistochemically in formalin-fixed paraffin-embedded primary tissue specimens. The relationships between the expression of Bmi-1 and PAI-1, the clinicopathologic features of ESCC, and the survival rate of ESCC patients were also discussed. The correlation between Bmi-1 and PAI-1 protein expression in ESCC was analyzed. The relationship between Bmi-1 and PAI-1 expression and ESCC prognosis was evaluated using a Cox regression model and Kaplan-Meier survival curve analysis.
RESULTS: The rates of positive Bmi-1 and PAI-1 expression in ESCC were higher than those in normal esophageal tissue (P < 0.05). The expression of Bmi-1 and PAI-1 was correlated with depth of invasion and lymph node metastasis (P < 0.05), but not with patient age, tumor size or nationality (P > 0.05). The expression of Bmi-1 was positively correlated with that of PAI-1 (P < 0.05). The 10-year overall survival rate for all patients was 20% (16/80). Univariate Kaplan-Meier survival analysis showed that patients with high expression of esophageal PAI-1 and Bmi-1 had lower survival, however, the difference was not statistically significant. Cox multivariate analysis showed that PAI-1 and Bmi-1 were not independent factors for survival rate, while the depth of tumor invasion and metastasis were independent factors affecting patient survival.
CONCLUSION: The expression of Bmi-1 and PAI-1 plays a role in ESCC progression, and may be used as a prognostic marker in ESCC.
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Plum PS, Bollschweiler E, Hölscher AH, Warnecke-Eberz U. Novel diagnostic and prognostic biomarkers in esophageal cancer. ACTA ACUST UNITED AC 2013; 7:557-71. [PMID: 24093836 DOI: 10.1517/17530059.2013.843526] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
INTRODUCTION This article provides an overview of actual biomarkers with an impact on improvement of diagnosis and treatment of esophageal cancer patients. AREAS COVERED Recent literature has been analyzed and provides information regarding the potential role of molecular markers as a diagnostic or prognostic factor in esophageal cancer. EXPERT OPINION Until now, the role of molecular markers is far from being firmly established for routine use and is not without obstacles. However, with reliable standardized methods, established cut-off values and promising candidates in marker panels with markers of genetic, epigenetic and proteomic origin might result in a marker tool worthwhile of being validated in large, prospective, randomized trials. Novel validated marker combinations have to be clinically applied to prove their putative role in complementing clinical techniques within the development of better detection concepts of esophageal cancer, improving patients' long-term prognosis by early and purposive therapy within individualized treatment concepts.
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Affiliation(s)
- Patrick S Plum
- University of Cologne, Department of General, Visceral and Cancer Surgery , Kerpener Str. 62, Cologne, 50937 , Germany +49 221 4786273 ; +49 221 4785076 ;
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