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Nagainallur Ravichandran S, Das D, Dayananda EK, Dey A, Banerjee A, Sun-Zhang A, Zhang H, Sun XF, Pathak S. A Review on Emerging Techniques for Diagnosis of Colorectal Cancer. Cancer Invest 2024; 42:119-140. [PMID: 38404236 DOI: 10.1080/07357907.2024.2315443] [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: 06/11/2023] [Accepted: 02/02/2024] [Indexed: 02/27/2024]
Abstract
Common detection methods in practice for diagnosing colorectal cancer (CRC) are painful and invasive leading to less participation of individuals for CRC diagnosis. Whereas, improved or enhanced imaging systems and other minimally invasive techniques with shorter detection times deliver greater detail and less discomfort in individuals. Thus, this review is a summary of the diagnostic tests, ranging from the simple potential use in developing a flexible CRC treatment to the patient's potential benefits in receiving less invasive procedures and the advanced treatments that might provide a better assessment for the diagnosis of CRC and reduce the mortality related to CRC.
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Affiliation(s)
- Shruthi Nagainallur Ravichandran
- Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute (CHRI), Chettinad Academy of Research and Education (CARE), Kelambakkam, Chennai, India
| | - Diptimayee Das
- Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute (CHRI), Chettinad Academy of Research and Education (CARE), Kelambakkam, Chennai, India
| | - Erica Katriel Dayananda
- Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute (CHRI), Chettinad Academy of Research and Education (CARE), Kelambakkam, Chennai, India
| | - Amit Dey
- Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute (CHRI), Chettinad Academy of Research and Education (CARE), Kelambakkam, Chennai, India
| | - Antara Banerjee
- Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute (CHRI), Chettinad Academy of Research and Education (CARE), Kelambakkam, Chennai, India
| | - Alexander Sun-Zhang
- Department of Oncology-Pathology, BioClinicum, Karolinska Institutet, Stockholm, Sweden
| | - Hong Zhang
- Faculty of Medicine and Health, School of Medical Sciences, Orebro University, Örebro, Sweden
| | - Xiao-Feng Sun
- Division of Oncology, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Surajit Pathak
- Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute (CHRI), Chettinad Academy of Research and Education (CARE), Kelambakkam, Chennai, India
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2
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Long S, Yan Y, Xu H, Wang L, Jiang J, Xu Z, Liu R, Zhou Q, Huang X, Chen J, Li Z, Wei W, Li X. Insights into the regulatory role of RNA methylation modifications in glioma. J Transl Med 2023; 21:810. [PMID: 37964279 PMCID: PMC10644640 DOI: 10.1186/s12967-023-04653-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 10/24/2023] [Indexed: 11/16/2023] Open
Abstract
Epitranscriptomic abnormalities, which are highly prevalent in primary central nervous system malignancies, have been identified as crucial contributors to the development and progression of gliomas. RNA epitranscriptomic modifications, particularly the reversible modification methylation, have been observed throughout the RNA cycle. Epitranscriptomic modifications, which regulate RNA transcription and translation, have profound biological implications. These modifications are associated with the development of several cancer types. Notably, three main protein types-writers, erasers, and readers, in conjunction with other related proteins, mediate these epitranscriptomic changes. This review primarily focuses on the role of recently identified RNA methylation modifications in gliomas, such as N6-methyladenosine (m6A), 5-methylcytosine (m5C), N7-methylguanosine (m7G), and N1-methyladenosine (m1A). We delved into their corresponding writers, erasers, readers, and related binding proteins to propose new approaches and prognostic indicators for patients with glioma.
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Affiliation(s)
- Shengrong Long
- Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
- Brain Research Center, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Yu Yan
- Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
- Brain Research Center, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Hongyu Xu
- Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
- Brain Research Center, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Lesheng Wang
- Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
- Brain Research Center, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Jiazhi Jiang
- Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
- Brain Research Center, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Ziyue Xu
- Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
- Brain Research Center, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Runming Liu
- Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
- Brain Research Center, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Qiangqiang Zhou
- Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
- Brain Research Center, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Xiaopeng Huang
- Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
- Brain Research Center, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Jincao Chen
- Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
- Brain Research Center, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Zhiqiang Li
- Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
- Brain Research Center, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Wei Wei
- Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China.
- Brain Research Center, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China.
| | - Xiang Li
- Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China.
- Brain Research Center, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China.
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Ranjbar R, Ghasemian M, Maniati M, Hossein Khatami S, Jamali N, Taheri-Anganeh M. Gastrointestinal disorder biomarkers. Clin Chim Acta 2022; 530:13-26. [DOI: 10.1016/j.cca.2022.02.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 02/11/2022] [Accepted: 02/15/2022] [Indexed: 01/19/2023]
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4
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Long noncoding RNA Meg3 sponges miR-708 to inhibit intestinal tumorigenesis via SOCS3-repressed cancer stem cells growth. Cell Death Dis 2021; 13:25. [PMID: 34934045 PMCID: PMC8692598 DOI: 10.1038/s41419-021-04470-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Revised: 11/16/2021] [Accepted: 12/10/2021] [Indexed: 12/18/2022]
Abstract
BACKGROUND Colorectal cancer (CRC) remains the most common gastrointestinal cancer and a leading cause of cancer deaths worldwide, with most showing pathologies indicating the malignant transformation of early stage intestinal stem cells. The long non-coding RNA Meg3, which functions as a tumor suppressor, has been reported to be abnormal in multiple tumorigenesis events; however, the underlying mechanism by which Meg3 contributes to the malignant proliferation of colonic stem cells remains unclear. METHODS We analyzed the expression levels of Meg3, miR-708, and SOCS3 in samples from Apc loss-of-function (Apcmin) mice and patients with CRC, particularly in colonic crypt cells. Apcmin mice and AMO/DSS-induced mice model (in vivo) and organoid culture system (in vitro) were used to explore the effect of the Meg3/miR-708/SOCS3 axis on tumorigenesis in the colon. In vitro, we performed RNApull-down, RNA immunoprecipitation, and luciferase reporter assays using DLD1 and RKO cell lines. FINDINGS The Meg3/miR-708/SOCS3 signaling axis plays a critical role in the early stage of CRC development. Our data showed Meg3 levels negatively correlate with miR-708 levels both in clinical samples and in the Apcmin mouse model, which indicated that Meg3 acts as a competitive endogenous RNA (ceRNA) of miR-708. Then, miR-708 served as an oncogene, inducing neoplasia in both Apcmin mice and cultured colonic organoids. Put together, miR-708 appears to promote malignant proliferation of colonic stem cells by targeting SOCS3/STAT3 signaling. INTERPRETATION These data revealed that Meg3 sponges miR-708 to inhibit CRC development via SOCS3-mediated repression of the malignant proliferation of colonic stem cells. The Meg3/miR-708/SOCS3 signaling axis provides potential targets for the diagnosis and treatment of CRC, particularly early stage CRC.
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Guo S, Zhu KX, Yu WH, Wang T, Li S, Wang YX, Zhang CC, Guo JQ. SH3PXD2A-AS1/miR-330-5p/UBA2 ceRNA network mediates the progression of colorectal cancer through regulating the activity of the Wnt/β-catenin signaling pathway. ENVIRONMENTAL TOXICOLOGY 2021; 36:1969-1980. [PMID: 33073888 DOI: 10.1002/tox.23038] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 08/17/2020] [Accepted: 09/22/2020] [Indexed: 06/11/2023]
Abstract
Long non-coding RNAs have important roles in the occurrence and progression of various cancers. However, the molecular mechanism of lncRNAs in colorectal cancer (CRC) is not well illustrated. Thus, we used bioinformatics methods to find potential lncRNAs associated with CRC progression, and chose SH3PXD2A-AS1 as a candidate for further analysis. The roles of SH3PXD2A-AS1 in CRC cells were determined by CCK-8, transwell invasion, wound healing and flow cytometry assays. Besides, we established the CRC tumor models in nude mice to study the effect of SH3PXD2A-AS1 on the tumor growth. Based on the ceRNA hypothesis, we used miRDB and miRTarBase websites to identify the SH3PXD2A-AS1-related ceRNA regulatory network, and measured the roles of this network in CRC cells. The results revealed that the expression profiles of SH3PXD2A-AS1 from GEO and TCGA databases showed an aberrant high level in CRC tissues compared with colorectal normal tissues. SH3PXD2A-AS1 over-expression was also found in CRC cells. SH3PXD2A-AS1 knockdown inhibited the CRC cellular proliferation, invasion and migration but induced apoptosis. Besides, SH3PXD2A-AS1 knockdown also suppressed the growth of CRC tumors. Furthermore, SH3PXD2A-AS1 could function as a ceRNA of miR-330-5p. Additionally, UBA2 was proved to be a target gene of miR-330-5p. Moreover, SH3PXD2A-AS1 knockdown downregulated UBA2 expression through sponging miR-330-5p to inactivate the Wnt/β-catenin signaling pathway, thereby inhibiting the cell growth and promoting apoptosis. Therefore, the SH3PXD2A-AS1/miR-330-5p/UBA2 network could regulate the progression of CRC through the Wnt/β-catenin pathway. These findings offer new sights for understanding the pathogenesis of CRC and provide potential biomarkers for CRC treatment.
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Affiliation(s)
- Shuang Guo
- Department of Gastroenterology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, PR China
| | - Kong-Xi Zhu
- Department of Gastroenterology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, PR China
| | - Wei-Hua Yu
- Department of Gastroenterology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, PR China
| | - Teng Wang
- Department of Gastroenterology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, PR China
| | - Shuai Li
- Department of Gastroenterology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, PR China
| | - Yun-Xia Wang
- Department of Gastroenterology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, PR China
| | - Chen-Chen Zhang
- Department of Gastroenterology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, PR China
| | - Jian-Qiang Guo
- Department of Gastroenterology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, PR China
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Feng SG, Bhandari R, Ya L, Zhixuan B, Qiuhui P, Jiabei Z, Sewi M, Ni Z, Jing W, Fenyong S, Ji M, Bhandari R. SNHG9 promotes Hepatoblastoma Tumorigenesis via miR-23a-5p/Wnt3a Axis. J Cancer 2021; 12:6031-6049. [PMID: 34539877 PMCID: PMC8425203 DOI: 10.7150/jca.60748] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Accepted: 07/29/2021] [Indexed: 12/18/2022] Open
Abstract
Background: Hepatoblastoma is a common hepatic tumor occurring in children between 0-5 years. Accumulating studies have shown lncRNA's potential role in distinct cancer progression and development, including hepatoblastoma. SnoRNA host gene 9 (SNHG9) is associated with the progression of distinct human cancers, but, its specific molecular mechanisms in hepatoblastoma is not unknown. Methods: In this study, we estimated SNHG9 expression in hepatoblastoma tissue and cell lines by quantitative Real-Time Polymerase Chain Reaction (qRT-PCR). Next, we downregulated and upregulated SNHG9 expression in hepatoblastoma cell lines and then determined cell proliferation (CCK-8), colony formation, and cellular apoptosis activity. The dual luciferase reporter activity, RNA immunoprecipitation (RIP), biotin RNA pull down and Spemann's Pearson correlation coefficient assay were performed to establish the interaction between SNHG9, WNt3a and miR- 23a-5p. A xenograft in-vivo tumorgenicity test was performed to elucidate the role of SNHG9 hepatoblastoma in tumorigenesis. SNHG9 role in Cisplatin drug resistance in hepatoblastoma was also determined. Results: SNHG9 was significantly upregulated in hepatoblastoma tissue and cell lines. SNHG9 overexpression on HUH6 & HepG2 resulted in a significant increase in cell proliferation and clonogenic activity while SNHG9 knock down resulted in a sustained inhibition of cell proliferation and clonogenic activity. Dual luciferase activity, RNA immunoprecipitation and biotin pull down confirmed the direct interaction of miR-23a-5p with SNHG9. The xenograft tumorgenicity test showed SNHG9 downregulation significantly inhibited the tumor growth in BALB/c mice. ROC and Kaplan-Meier analysis showed potential prognostic and diagnostic importance of SNHG9 in hepatoblastoma. Conclusion: We concluded that SNHG9/miR-23a-5p/Wnt3a axis promotes the progression hepatoblastoma tumor.
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Affiliation(s)
- Sun Gui Feng
- Department of Clinical Laboratory Medicine, Chengdu Second Peoples Hospital, Chengdu, Sichuan 610021, PR China.,Department of Clinical Laboratory Medicine, Shanghai Tenth People's Hospital, Tongji University of Medicine Shanghai, China
| | - Rajeev Bhandari
- Department of Clinical Laboratory Medicine, Chengdu Second Peoples Hospital, Chengdu, Sichuan 610021, PR China
| | - Liu Ya
- Department of Clinical Laboratory Medicine, Shanghai Tenth People's Hospital, Tongji University of Medicine Shanghai, China
| | - Bian Zhixuan
- Department of Clinical Laboratory Medicine, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiaotong University, Shanghai, 200127, China
| | - Pan Qiuhui
- Department of Clinical Laboratory Medicine, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiaotong University, Shanghai, 200127, China
| | - Zhu Jiabei
- Department of Clinical Laboratory Medicine, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiaotong University, Shanghai, 200127, China
| | - Mao Sewi
- Department of Clinical Laboratory Medicine, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiaotong University, Shanghai, 200127, China
| | - Zhen Ni
- Department of Clinical Laboratory Medicine, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiaotong University, Shanghai, 200127, China
| | - Wang Jing
- Department of Clinical Laboratory Medicine, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiaotong University, Shanghai, 200127, China
| | - Sun Fenyong
- Department of Clinical Laboratory Medicine, Shanghai Tenth People's Hospital, Tongji University of Medicine Shanghai, China
| | - Ma Ji
- Department of Clinical Laboratory Medicine, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiaotong University, Shanghai, 200127, China
| | - Ramesh Bhandari
- Department of Clinical Laboratory Medicine, Shanghai Tenth People's Hospital, Tongji University of Medicine Shanghai, China
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7
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Wang L, Su M, Zhang M, Zhao H, Wang H, Xing J, Guo C, Zhou D, Xue W, Lu H, Zhang Y. Accurate Prediction of Prognosis by Integrating Clinical and Molecular Characteristics in Colon Cancer. Front Cell Dev Biol 2021; 9:664415. [PMID: 34095132 PMCID: PMC8176021 DOI: 10.3389/fcell.2021.664415] [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: 02/05/2021] [Accepted: 04/06/2021] [Indexed: 11/13/2022] Open
Abstract
Various factors affect the prognosis of patients with colon cancer. Complicated factors are found to be conducive to accurate assessment of prognosis. In this study, we developed a series of prognostic prediction models for survival time of colon cancer patients after surgery. Analysis of nine clinical characteristics showed that the most important factor was the positive lymph node ratio (LNR). High LNR was the most important clinical factor affecting 1- and 3-year survival; M0&age < 70 was the most important feature for 5 years. The performance of the model was improved through the integration of clinical characteristics and four types of molecule features (mRNA, lncRNA, miRNA, DNA methylation). The model provides guidance for clinical practice. According to the high-risk molecular features combined with age ≥ 70&T3, poorly differentiated or undifferentiated, M0&well differentiated, M0&T2, LNR high, T4&poorly differentiated, or undifferentiated, the survival time may be less than 1 year; for patients with high risk of molecular features combined with M0&T2, M0&T4, LNR 0& M0, LNR median &T3, and LNR high, the survival is predicted less than 3 years; and the survival of patients with M1&T3, M0 and high risk molecular features is less than 5 years. Using multidimensional and complex patient information, this study establishes potential criteria for clinicians to evaluate the survival of patients for colon cancer.
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Affiliation(s)
- Liru Wang
- School of Life Science and Technology, Computational Biology Research Center, Harbin Institute of Technology, Harbin, China.,Department of Medical Oncology, Heilongjiang Provincial Hospital, Harbin, China
| | - Mu Su
- School of Life Science and Technology, Computational Biology Research Center, Harbin Institute of Technology, Harbin, China
| | - Mengyan Zhang
- School of Life Science and Technology, Computational Biology Research Center, Harbin Institute of Technology, Harbin, China
| | - Hongyan Zhao
- Department of Gastroenterology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Hongli Wang
- School of Life Science and Technology, Computational Biology Research Center, Harbin Institute of Technology, Harbin, China
| | - Jie Xing
- School of Life Science and Technology, Computational Biology Research Center, Harbin Institute of Technology, Harbin, China
| | - Chenyu Guo
- School of Life Science and Technology, Computational Biology Research Center, Harbin Institute of Technology, Harbin, China
| | - Dianshuang Zhou
- School of Life Science and Technology, Computational Biology Research Center, Harbin Institute of Technology, Harbin, China
| | - Wenhui Xue
- School of Life Science and Technology, Computational Biology Research Center, Harbin Institute of Technology, Harbin, China
| | - Haibo Lu
- Department of Gastrointestinal Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, China
| | - Yan Zhang
- School of Life Science and Technology, Computational Biology Research Center, Harbin Institute of Technology, Harbin, China.,Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Disease, Guangzhou Medical University, Guangzhou, China
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8
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Chen L, He M, Zhang M, Sun Q, Zeng S, Zhao H, Yang H, Liu M, Ren S, Meng X, Xu H. The Role of non-coding RNAs in colorectal cancer, with a focus on its autophagy. Pharmacol Ther 2021; 226:107868. [PMID: 33901505 DOI: 10.1016/j.pharmthera.2021.107868] [Citation(s) in RCA: 66] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 04/16/2021] [Accepted: 04/20/2021] [Indexed: 02/06/2023]
Abstract
Colorectal cancer (CRC) is one of malignant afflictions burdening people worldwide, mainly caused by shortages of effective medical intervention and poorly mechanistic understanding of the pathogenesis of CRC. Non-coding RNAs (ncRNAs) are a type of heterogeneous transcripts without the capability of coding protein, but have the potency of regulating protein-coding gene expression. Autophagy is an evolutionarily conserved catabolic process in which cytoplasmic contents are delivered to cellular lysosomes for degradation, resulting in the turnover of cellular components and producing energy for cell functions. A growing body of evidence reveals that ncRNAs, autophagy, and the crosstalks of ncRNAs and autophagy play intricate roles in the initiation, progression, metastasis, recurrence and therapeutic resistance of CRC, which confer ncRNAs and autophagy to serve as clinical biomarkers and therapeutic targets for CRC. In this review, we sought to delineate the complicated roles of ncRNAs, mainly including miRNAs, lncRNAs and circRNAs, in the pathogenesis of CRC, particularly focus on the regulatory role of ncRNAs in CRC-related autophagy, attempting to shed light on the complex pathological mechanisms, involving ncRNAs and autophagy, responsible for CRC tumorigenesis and development, so as to underpin the ncRNAs- and autophagy-based therapeutic strategies for CRC in clinical setting.
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Affiliation(s)
- Li Chen
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; Department of Pharmacology, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Man He
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; Department of Pharmacology, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Meng Zhang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; Department of Pharmacology, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Qiang Sun
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; Department of Pharmacology, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Sha Zeng
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; Department of Pharmacology, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Hui Zhao
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; Department of Pharmacology, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Han Yang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; Department of Pharmacology, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Maolun Liu
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; Department of Pharmacology, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Shan Ren
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; Department of Pharmacology, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Xianli Meng
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Haibo Xu
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; Department of Pharmacology, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
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9
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Guo Y, Shi W, Fang R. miR‑18a‑5p promotes melanoma cell proliferation and inhibits apoptosis and autophagy by targeting EPHA7 signaling. Mol Med Rep 2020; 23:79. [PMID: 33236144 PMCID: PMC7716404 DOI: 10.3892/mmr.2020.11717] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Accepted: 07/22/2020] [Indexed: 12/13/2022] Open
Abstract
Micro (mi)RNAs serve crucial roles in cancer development although little is known about their cellular mechanisms in the pathogenesis of melanoma. The present study explored the regulatory roles of miR-18a-5p in melanoma cell proliferation, apoptosis and autophagy, in addition to its target gene in melanoma cells. miRNA and ephrin receptor A7 (EPHA7) mRNA were analyzed by reverse transcription-quantitative PCR. Cell Counting Kit-8 and colony formation assays were performed to examine the cell proliferation rate. Hoechst staining and flow cytometry were performed to investigate cell apoptosis. Western blotting was used to estimate the abundance of proteins. Dual-Luciferase reporter assay verified the binding of miRNA with target gene sequences. Melanoma tissues and cell lines exhibited markedly elevated miR-18a-5p expression. miR-18a-5p inhibitor inhibited proliferation rates, and triggered apoptosis and autophagy marker protein expression in WM266-4 and A375 cells. It also negatively regulated EPHA7 expression in WM266-4 and A375 cells by directly binding at the 3′-untranslated region of EPHA7. miR-18a-5p mimics reversed the EPHA7 overexpression-induced suppression of proliferation, and the EPHA7 overexpression-induced promotion of apoptosis and autophagy. miR-18a-5p triggered proliferation of melanoma cells and inhibited apoptosis and autophagy by directly targeting and inhibiting EPHA7 expression. Thus, the present study aided our understanding of miRNA-mediated melanoma pathogenesis.
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Affiliation(s)
- Yunlong Guo
- Department of Dermatology, School of Medicine, Guangzhou First People's Hospital, South China University of Technology, Guangzhou, Guangdong 510180, P.R. China
| | - Wenli Shi
- Department of Dermatology, School of Medicine, Guangzhou First People's Hospital, South China University of Technology, Guangzhou, Guangdong 510180, P.R. China
| | - Ruihua Fang
- Department of Dermatology, School of Medicine, Guangzhou First People's Hospital, South China University of Technology, Guangzhou, Guangdong 510180, P.R. China
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10
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Yan S, Wei H, Li Q, Si M, Feng W, Chen Z. CircTP53 promotes colorectal cancer by acting as a miR-876-3p sponge to increase cyclin-dependent kinase-like 3 expression. Cell Signal 2020; 78:109845. [PMID: 33232736 DOI: 10.1016/j.cellsig.2020.109845] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 11/19/2020] [Accepted: 11/20/2020] [Indexed: 12/21/2022]
Abstract
According to ceRNA theory, circular RNAs could regulate certain protein expression through targeting corresponding microRNAs to affect the progression of multiple diseases, including colorectal cancer. CircTP53 (hsa_circ_0107702), highly expressed in thyroid cancer tissues, could promote the proliferation of thyroid cancer. However, the function of circTP53 in colorectal cancer is still unclear. In our study, we found circTP53 was significantly up-regulated in colorectal cancer tissues from patients and in colorectal cell lines. Next, using colorectal cell lines, we confirmed that circTP53 promoted the proliferation, migration and invasion, and reduced the apoptotic rate. Furthermore, through bioinformatics analysis and experimental confirmation, we found circTP53 functioned as the sponge of miR-876-3p, and miR-876-3p reversed the phenotype of circTP53 on the facilitation of colorectal cancer. Additionally, we found circTP53 promoted the progression of colorectal cancer by elevating the expression of CDKL3. At last, we suggested that circTP53 knockdown could inhibit colorectal cancer progression in vivo. In conclusion, circTP53 was highly expressed in colorectal cancer tissues, and promoted colorectal cancer progression via modulating miR-876-3p/CDKL3 axis.
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Affiliation(s)
- Shuguang Yan
- College of Basic Medicine, The Shaanxi University of Chinese Medicine, Xianyang 712046, Shaanxi, China
| | - Hailiang Wei
- Departments of General Surgery, The Affliated Hospital of Shaanxi University of Chinese Medicine, Xianyang 712046, Shaanxi, China
| | - Qian Li
- Medical Experiment Center, Shaanxi University of Chinese Medicine, Xianyang, Shaanxi 712046, China
| | - Mingming Si
- Departments of General Surgery, The Affliated Hospital of Shaanxi University of Chinese Medicine, Xianyang 712046, Shaanxi, China
| | - Wenzhe Feng
- Departments of Proctology, The Affiliated Hospital of Shaanxi University of Chinese Medicine, Xianyang 712046, Shaanxi, China
| | - Zhiguo Chen
- Departments of General Surgery, The Affliated Hospital of Shaanxi University of Chinese Medicine, Xianyang 712046, Shaanxi, China.
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11
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Sacco M, De Palma FDE, Guadagno E, Giglio MC, Peltrini R, Marra E, Manfreda A, Amendola A, Cassese G, Dinuzzi VP, Pegoraro F, Tropeano FP, Luglio G, De Palma GD. Serrated lesions of the colon and rectum: Emergent epidemiological data and molecular pathways. Open Med (Wars) 2020; 15:1087-1095. [PMID: 33336065 PMCID: PMC7718641 DOI: 10.1515/med-2020-0226] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 07/14/2020] [Accepted: 08/07/2020] [Indexed: 12/26/2022] Open
Abstract
In 2010, serrated polyps (SP) of the colon have been included in the WHO classification of digestive tumors. Since then a large corpus of evidence focusing on these lesions are available in the literature. This review aims to analyze the present data on the epidemiological and molecular aspects of SP. Hyperplastic polyps (HPs) are the most common subtype of SP (70–90%), with a minimal or null risk of malignant transformation, contrarily to sessile serrated lesions (SSLs) and traditional serrated adenomas (TSAs), which represent 10–20% and 1% of adenomas, respectively. The malignant transformation, when occurs, is supported by a specific genetic pathway, known as the serrated-neoplasia pathway. The time needed for malignant transformation is not known, but it may occur rapidly in some lesions. Current evidence suggests that a detection rate of SP ≥15% should be expected in a population undergoing screening colonoscopy. There are no differences between primary colonoscopies and those carried out after positive occult fecal blood tests, as this screening test fails to identify SP, which rarely bleed. Genetic similarities between SP and interval cancers suggest that these cancers could arise from missed SP. Hence, the detection rate of serrated-lesions should be evaluated as a quality indicator of colonoscopy. There is a lack of high-quality longitudinal studies analyzing the long-term risk of developing colorectal cancer (CRC), as well as the cancer risk factors and molecular tissue biomarkers. Further studies are needed to define an evidence-based surveillance program after the removal of SP, which is currently suggested based on experts’ opinions.
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Affiliation(s)
- Michele Sacco
- Department of Clinical Medicine and Surgery, University of Naples Federico II via Sergio Pansini, 5 - 80131, Naples, Italy
| | - Fatima Domenica Elisa De Palma
- CEINGE Biotecnologie Avanzate s.c.ar.l., Via Comunale Margherita, 80131, Naples, Italy.,Department of Molecular Medicine and Medical Biotechnologies, University of Naples Federico II, via Sergio Pansini, 5 - 80131, Naples, Italy
| | - Elia Guadagno
- Department of Advanced Biomedical Sciences, Pathology Section, University of Naples Federico II, Naples, Italy
| | - Mariano Cesare Giglio
- Department of Clinical Medicine and Surgery, University of Naples Federico II via Sergio Pansini, 5 - 80131, Naples, Italy
| | - Roberto Peltrini
- Department of Clinical Medicine and Surgery, University of Naples Federico II via Sergio Pansini, 5 - 80131, Naples, Italy
| | - Ester Marra
- Department of Clinical Medicine and Surgery, University of Naples Federico II via Sergio Pansini, 5 - 80131, Naples, Italy
| | - Andrea Manfreda
- Department of Clinical Medicine and Surgery, University of Naples Federico II via Sergio Pansini, 5 - 80131, Naples, Italy
| | - Alfonso Amendola
- Department of Clinical Medicine and Surgery, University of Naples Federico II via Sergio Pansini, 5 - 80131, Naples, Italy
| | - Gianluca Cassese
- Department of Clinical Medicine and Surgery, University of Naples Federico II via Sergio Pansini, 5 - 80131, Naples, Italy
| | - Vincenza Paola Dinuzzi
- Department of Clinical Medicine and Surgery, University of Naples Federico II via Sergio Pansini, 5 - 80131, Naples, Italy
| | - Francesca Pegoraro
- Department of Clinical Medicine and Surgery, University of Naples Federico II via Sergio Pansini, 5 - 80131, Naples, Italy
| | - Francesca Paola Tropeano
- Department of Clinical Medicine and Surgery, University of Naples Federico II via Sergio Pansini, 5 - 80131, Naples, Italy
| | - Gaetano Luglio
- Department of Clinical Medicine and Surgery, University of Naples Federico II via Sergio Pansini, 5 - 80131, Naples, Italy
| | - Giovanni Domenico De Palma
- Department of Clinical Medicine and Surgery, University of Naples Federico II via Sergio Pansini, 5 - 80131, Naples, Italy
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12
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Shin TJ, Lee KH, Cho JY. Epigenetic Mechanisms of LncRNAs Binding to Protein in Carcinogenesis. Cancers (Basel) 2020; 12:E2925. [PMID: 33050646 PMCID: PMC7599656 DOI: 10.3390/cancers12102925] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 10/09/2020] [Accepted: 10/09/2020] [Indexed: 02/06/2023] Open
Abstract
Epigenetic dysregulation is an important feature for cancer initiation and progression. Long non-coding RNAs (lncRNAs) are transcripts that stably present as RNA forms with no translated protein and have lengths larger than 200 nucleotides. LncRNA can epigenetically regulate either oncogenes or tumor suppressor genes. Nowadays, the combined research of lncRNA plus protein analysis is gaining more attention. LncRNA controls gene expression directly by binding to transcription factors of target genes and indirectly by complexing with other proteins to bind to target proteins and cause protein degradation, reduced protein stability, or interference with the binding of other proteins. Various studies have indicated that lncRNA contributes to cancer development by modulating genes epigenetically and studies have been done to determine which proteins are combined with lncRNA and contribute to cancer development. In this review, we look in depth at the epigenetic regulatory function of lncRNAs that are capable of complexing with other proteins in cancer development.
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Affiliation(s)
| | | | - Je-Yoel Cho
- Department of Biochemistry, BK21 Plus and Research Institute for Veterinary Science, School of Veterinary Medicine, Seoul National University, Seoul 08826, Korea; (T.-J.S.); (K.-H.L.)
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13
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Shengnan J, Dafei X, Hua J, Sunfu F, Xiaowei W, Liang X. Long non-coding RNA HOTAIR as a competitive endogenous RNA to sponge miR-206 to promote colorectal cancer progression by activating CCL2. J Cancer 2020; 11:4431-4441. [PMID: 32489462 PMCID: PMC7255378 DOI: 10.7150/jca.42308] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Accepted: 04/15/2020] [Indexed: 12/22/2022] Open
Abstract
Colorectal cancer (CRC) is one of the common malignant tumors, the incidence of which is on rise. LncHOTAIR, considered as an oncogene, contributed to the progression of a lot of cancers. However, the molecular mechanism and biological functions of the HOTAIR/miR-206/CCL2 axis have not been reported before. Here, our research aimed to explore HOTAIR/miR-206/CCL2 axis in CRC to demonstrate its role in predicting the poor prognosis of CRC. LncHOTAIR, miR-206 and CCL2 mRNA were detected in CRC tissues and cells by RT-PCR. The interactions among LncHOTAIR, miR-206 and CCL2 were explored by luciferase reporter assay, qRT-PCR, western blot and RNA interfere. Flow Cytometry Cell Analysis was performed to detect cell cycle and apoptosis as well as colony assay was prepared to test the cell proliferation. Immunohistochemical analysis was used to detect the CCL2 protein in CRC tissues. In our study, silence of LncHOTAIR by RNA interference could suppress the proliferation, migration and invasion of CRC cells. Mechanistically, LncHOTAIR downregulated miR-206 abundance which indicated that LncHOTAIR was considered as a competing endogenous RNA (ceRNA) by directly sponging miR-206 in CRC cells. In addition, further exploration suggested that miR-206 could inhibit the function of the downstream CCL2, the expression of which was repressed by LncHOTAIR/miR-206 signaling. Furthermore, we verified that the overexpression of CCL2 attenuated CRC cell proliferation, migration, invasion. Overall, this study firstly elucidated that LncHOTAIR played as oncogene in CRC via directly sponging miR-206 to activate the downstream CCL2, which would be considered as the novel therapeutic target in CRC.
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Affiliation(s)
| | - Xie Dafei
- Zhejiang Hospital, Hangzhou, 310013, China
| | - Jin Hua
- Zhejiang Hospital, Hangzhou, 310013, China
| | - Fan Sunfu
- Zhejiang Hospital, Hangzhou, 310013, China
| | | | - Xu Liang
- Zhejiang Hospital, Hangzhou, 310013, China
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14
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Jung G, Hernández-Illán E, Moreira L, Balaguer F, Goel A. Epigenetics of colorectal cancer: biomarker and therapeutic potential. Nat Rev Gastroenterol Hepatol 2020; 17:111-130. [PMID: 31900466 PMCID: PMC7228650 DOI: 10.1038/s41575-019-0230-y] [Citation(s) in RCA: 431] [Impact Index Per Article: 107.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/16/2019] [Indexed: 12/24/2022]
Abstract
Colorectal cancer (CRC), a leading cause of cancer-related death worldwide, evolves as a result of the stepwise accumulation of a series of genetic and epigenetic alterations in the normal colonic epithelium, leading to the development of colorectal adenomas and invasive adenocarcinomas. Although genetic alterations have a major role in a subset of CRCs, the pathophysiological contribution of epigenetic aberrations in this malignancy has attracted considerable attention. Data from the past couple of decades has unequivocally illustrated that epigenetic marks are important molecular hallmarks of cancer, as they occur very early in disease pathogenesis, involve virtually all key cancer-associated pathways and, most importantly, can be exploited as clinically relevant disease biomarkers for diagnosis, prognostication and prediction of treatment response. In this Review, we summarize the current knowledge on the best-studied epigenetic modifications in CRC, including DNA methylation and histone modifications, as well as the role of non-coding RNAs as epigenetic regulators. We focus on the emerging potential for the bench-to-bedside translation of some of these epigenetic alterations into clinical practice and discuss the burgeoning evidence supporting the potential of emerging epigenetic therapies in CRC as we usher in the era of precision medicine.
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Affiliation(s)
- Gerhard Jung
- Gastroenterology Department, Hospital Clínic de Barcelona, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Barcelona, Spain
| | - Eva Hernández-Illán
- Gastroenterology Department, Hospital Clínic de Barcelona, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Barcelona, Spain
| | - Leticia Moreira
- Gastroenterology Department, Hospital Clínic de Barcelona, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Barcelona, Spain
| | - Francesc Balaguer
- Gastroenterology Department, Hospital Clínic de Barcelona, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Barcelona, Spain.,;
| | - Ajay Goel
- Center for Gastrointestinal Research, Center for Translational Genomics and Oncology, Baylor Scott & White Research Institute and Charles A. Sammons Cancer Center, Baylor University Medical Center, Dallas, Texas, USA.,Department of Molecular Diagnostics and Experimental Therapeutics, Beckman Research Institute of City of Hope Comprehensive Cancer Center, Duarte, California, USA.,;
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15
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Zhong H, Song M. Directional association test reveals high-quality putative cancer driver biomarkers including noncoding RNAs. BMC Med Genomics 2019; 12:129. [PMID: 31888644 PMCID: PMC6936152 DOI: 10.1186/s12920-019-0565-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Accepted: 07/29/2019] [Indexed: 11/24/2022] Open
Abstract
Background Most statistical methods used to identify cancer driver genes are either biased due to choice of assumed parametric models or insensitive to directional relationships important for causal inference. To overcome modeling biases and directional insensitivity, a recent statistical functional chi-squared test (FunChisq) detects directional association via model-free functional dependency. FunChisq examines patterns pointing from independent to dependent variables arising from linear, non-linear, or many-to-one functional relationships. Meanwhile, the Functional Annotation of Mammalian Genome 5 (FANTOM5) project surveyed gene expression at over 200,000 transcription start sites (TSSs) in nearly all human tissue types, primary cell types, and cancer cell lines. The data cover TSSs originated from both coding and noncoding genes. For the vast uncharacterized human TSSs that may exhibit complex patterns in cancer versus normal tissues, the model-free property of FunChisq provides us an unprecedented opportunity to assess the evidence for a gene’s directional effect on human cancer. Results We first evaluated FunChisq and six other methods using 719 curated cancer genes on the FANTOM5 data. FunChisq performed best in detecting known cancer driver genes from non-cancer genes. We also show the capacity of FunChisq to reveal non-monotonic patterns of functional association, to which typical differential analysis methods such as t-test are insensitive. Further applying FunChisq to screen unannotated TSSs in FANTOM5, we predicted 1108 putative cancer driver noncoding RNAs, stronger than 90% of curated cancer driver genes. Next, we compared leukemia samples against other samples in FANTOM5 and FunChisq predicted 332/79 potential biomarkers for lymphoid/myeloid leukemia, stronger than the TSSs of all 87/100 known driver genes in lymphoid/myeloid leukemia. Conclusions This study demonstrated the advantage of FunChisq in revealing directional association, especially in detecting non-monotonic patterns. Here, we also provide the most comprehensive catalog of high-quality biomarkers that may play a causative role in human cancers, including putative cancer driver noncoding RNAs and lymphoid/myeloid leukemia specific biomarkers. Electronic supplementary material The online version of this article (10.1186/s12920-019-0565-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Hua Zhong
- Department of Computer Science, New Mexico State University, University Ave, Las Cruces, 88003, NM, USA
| | - Mingzhou Song
- Department of Computer Science, New Mexico State University, University Ave, Las Cruces, 88003, NM, USA.,Molecular Biology Graduate Program, New Mexico State University, University Ave, Las Cruces, 88003, NM, USA
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16
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Yang B, Zhou SN, Tan JN, Huang J, Chen ZT, Zhong GY, Han FH. Long Non-Coding RNA STARD13-AS Suppresses Cell Proliferation And Metastasis In Colorectal Cancer. Onco Targets Ther 2019; 12:9309-9318. [PMID: 31807011 PMCID: PMC6842744 DOI: 10.2147/ott.s217094] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Accepted: 10/11/2019] [Indexed: 12/17/2022] Open
Abstract
Background Dysregulation of long non-coding RNAs (lncRNAs) is closely related with the progression of cancer in humans. The functional and regulatory roles of lncRNAs in colorectal cancer (CRC) are still largely unclear. The purpose of this study is to explore the function of lncRNA STARD13-AS in CRC. Methods The bioinformatics tool “GEPIA” was used to predict the potential expression of STARD13-AS in CRC. qRT-PCR was used to evaluate the relative expression level of STARD13-AS in CRC cells lines and tissues samples. The functional involvement of STARD13-AS in the CRC cells was assessed using MTT assay, flow cytometry, and Transwell assay. The expression levels of cyclin D, cyclin E, E-cadherin, N-cadherin, and vimentin were assessed using Western blot. Results Bioinformatics prediction and qRT-PCR results showed that STARD13-AS expression was decreased in CRC tissues. Patients with low STARD13-AS expression exhibited distant and lymphatic metastasis as well as enhancement in tumor size. STARD13-AS expression was downregulated in CRC cell lines compared to normal human colon mucosal epithelial cell line NCM460 and STARD13-AS expression in SW620 and LoVo cell lines was lowest. Moreover, we observed that while STARD13-AS overexpression suppressed the cell cycle, proliferation, migration, and invasion, while promoted apoptosis both in LoVo and SW620 cells. In addition, STARD13-AS overexpression inhibited Cyclin E, Cyclin D, N-cadherin and vimentin expression, and promoted E-cadherin expression both in LoVo and SW620 cells. Conclusion Expression of STARD13-AS suppresses cell proliferation and metastasis in CRC, suggesting that STARD13-AS might act as a potential target for CRC treatment.
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Affiliation(s)
- Bin Yang
- Department of Gastrointestinal Surgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong 510120, People's Republic of China
| | - Sheng-Ning Zhou
- Department of Gastrointestinal Surgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong 510120, People's Republic of China
| | - Jia-Nan Tan
- Department of Gastrointestinal Surgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong 510120, People's Republic of China
| | - Jing Huang
- Department of Gastrointestinal Surgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong 510120, People's Republic of China
| | - Zhi-Tao Chen
- Department of Gastrointestinal Surgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong 510120, People's Republic of China
| | - Guang-Yu Zhong
- Department of Gastrointestinal Surgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong 510120, People's Republic of China
| | - Fang-Hai Han
- Department of Gastrointestinal Surgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong 510120, People's Republic of China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen University, Guangzhou, Guangdong 510120, People's Republic of China
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17
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Sun Y, Jia X, Wang M, Deng Y. Long noncoding RNA MIR31HG abrogates the availability of tumor suppressor microRNA-361 for the growth of osteosarcoma. Cancer Manag Res 2019; 11:8055-8064. [PMID: 31564967 PMCID: PMC6722458 DOI: 10.2147/cmar.s214569] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Accepted: 07/04/2019] [Indexed: 12/21/2022] Open
Abstract
Purpose Long noncoding RNA (LncRNA) containing microRNA host gene is an interesting type of LncRNA. MicroRNA-31 (miR-31)-host gene LncRNA (MIR31HG) have been recognized as an oncogene in many cancers, but not in osteosarcoma (OS). Interestingly, MIR31HG/miR-31 could not regulate each other’s expression in certain cancer, suggesting that the role of MIR31HG in cancer is independent of miR-31. We here investigated the function and potential mechanism of MIR31HG in OS. Methods OS tissues and adjacent non-tumor tissues (n=40) were collected to determine the expressions of MIR31HG by paired t-test. We here identified the miRNAs predicted to be bound to MIR31HG and investigated the impacts of MIR31HG on cell growth and metastasis of OS cells by CCK-8, flow cytometry, Transwell assay, Western blot, etc. in vitro and in vivo. Results MIR31HG was upregulated in OS tissues and OS cell lines. The patients with high expression of MIR31HG have high tumor stages and distant metastasis. Tumor suppressor miR-361, but not miR-31, was confirmed to be sponged directly by MIR31HG in OS cells and was down-regulated in OS cell lines. Knockdown of MIR31HG restored the expression of miR-361. Restoration of miR-361 level in Saos-2 and U2OS cells induced cell apoptosis and G1/S arrest, inhibited proliferation and migration, which was, however, abrogated by MIR31HG. Mechanistically, cell growth and metastasis-related target genes of MIR-361 including VEGF, FOXM1 and Twist were de-repressed in OS cells by MIR31HG overexpression, leading to upregulated BCL2, CCND1 and epithelial–mesenchymal transition (EMT) phenotype. Patients with high expression of MIR31HG also showed more VEGF, FOXM1 and Twist levels. Overexpression of MIR31HG in vivo also promoted tumor growth via inhibition of miR-361 signals and elevated the expression of VEGF, FOXM1 and Twist for tumor growth. Conclusion MIR31HG acts as an oncogene in OS for tumor progression via regulation of tumor suppressor miR-361 and its target genes.
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Affiliation(s)
- Yongjie Sun
- Department of Orthopedics, Shanxian Central Hospital Affiliated to Jining Medical University, Heze, Shandong 274300, People's Republic of China
| | - Xinghao Jia
- Department of Orthopedics, Shanxian Haijiya Hospital, Heze, Shandong 274300, People's Republic of China
| | - Mingxing Wang
- Department of Orthopedics, Shanxian Central Hospital Affiliated to Jining Medical University, Heze, Shandong 274300, People's Republic of China
| | - Yiqi Deng
- Department of Orthopedics, Shanxian Central Hospital Affiliated to Jining Medical University, Heze, Shandong 274300, People's Republic of China
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18
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Allen J, Sears CL. Impact of the gut microbiome on the genome and epigenome of colon epithelial cells: contributions to colorectal cancer development. Genome Med 2019; 11:11. [PMID: 30803449 PMCID: PMC6388476 DOI: 10.1186/s13073-019-0621-2] [Citation(s) in RCA: 112] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
In recent years, the number of studies investigating the impact of the gut microbiome in colorectal cancer (CRC) has risen sharply. As a result, we now know that various microbes (and microbial communities) are found more frequently in the stool and mucosa of individuals with CRC than healthy controls, including in the primary tumors themselves, and even in distant metastases. We also know that these microbes induce tumors in various mouse models, but we know little about how they impact colon epithelial cells (CECs) directly, or about how these interactions might lead to modifications at the genetic and epigenetic levels that trigger and propagate tumor growth. Rates of CRC are increasing in younger individuals, and CRC remains the second most frequent cause of cancer-related deaths globally. Hence, a more in-depth understanding of the role that gut microbes play in CRC is needed. Here, we review recent advances in understanding the impact of gut microbes on the genome and epigenome of CECs, as it relates to CRC. Overall, numerous studies in the past few years have definitively shown that gut microbes exert distinct impacts on DNA damage, DNA methylation, chromatin structure and non-coding RNA expression in CECs. Some of the genes and pathways that are altered by gut microbes relate to CRC development, particularly those involved in cell proliferation and WNT signaling. We need to implement more standardized analysis strategies, collate data from multiple studies, and utilize CRC mouse models to better assess these effects, understand their functional relevance, and leverage this information to improve patient care.
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Affiliation(s)
- Jawara Allen
- Department of Medicine, Johns Hopkins University School of Medicine, Orleans Street, Baltimore, MD, 21231, USA
| | - Cynthia L Sears
- Department of Medicine, Johns Hopkins University School of Medicine, Orleans Street, Baltimore, MD, 21231, USA. .,Bloomberg-Kimmel Institute for Immunotherapy and Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins Medical Institutions, North Broadway, Baltimore, MD, 21231, USA.
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19
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Marks KM, West NP, Morris E, Quirke P. Clinicopathological, genomic and immunological factors in colorectal cancer prognosis. Br J Surg 2018; 105:e99-e109. [PMID: 29341159 DOI: 10.1002/bjs.10756] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Accepted: 10/02/2017] [Indexed: 12/17/2022]
Abstract
BACKGROUND Numerous factors affect the prognosis of colorectal cancer (CRC), many of which have long been identified, such as patient demographics and the multidisciplinary team. In more recent years, molecular and immunological biomarkers have been shown to have a significant influence on patient outcomes. Whilst some of these biomarkers still require ongoing validation, if proven to be worthwhile they may change our understanding and future management of CRC. The aim of this review was to identify the key prognosticators of CRC, including new molecular and immunological biomarkers, and outline how these might fit into the whole wider context for patients. METHODS Relevant references were identified through keyword searches of PubMed and Embase Ovid SP databases. RESULTS In recent years there have been numerous studies outlining molecular markers of prognosis in CRC. In particular, the Immunoscore® has been shown to hold strong prognostic value. Other molecular biomarkers are useful in guiding treatment decisions, such as mutation testing of genes in the epidermal growth factor receptor pathway. However, epidemiological studies continue to show that patient demographics are fundamental in predicting outcomes. CONCLUSION Current strategies for managing CRC are strongly dependent on clinicopathological staging, although molecular testing is increasingly being implemented into routine clinical practice. As immunological biomarkers are further validated, their testing may also become routine. To obtain clinically useful information from new biomarkers, it is important to implement them into a model that includes all underlying fundamental factors, as this will enable the best possible outcomes and deliver true precision medicine.
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Affiliation(s)
- K M Marks
- Section of Pathology and Tumour Biology, Leeds Institute of Cancer and Pathology, School of Medicine, University of Leeds, Leeds, UK
| | - N P West
- Section of Pathology and Tumour Biology, Leeds Institute of Cancer and Pathology, School of Medicine, University of Leeds, Leeds, UK
| | - E Morris
- Section of Epidemiology and Biostatistics, Leeds Institute of Cancer and Pathology, School of Medicine, University of Leeds, Leeds, UK
| | - P Quirke
- Section of Pathology and Tumour Biology, Leeds Institute of Cancer and Pathology, School of Medicine, University of Leeds, Leeds, UK
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Zhang Z, Liu Q, Wang P, Li J, He T, Ouyang Y, Huang Y, Wang W. Development and internal validation of a nine-lncRNA prognostic signature for prediction of overall survival in colorectal cancer patients. PeerJ 2018; 6:e6061. [PMID: 30564521 PMCID: PMC6286799 DOI: 10.7717/peerj.6061] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Accepted: 11/03/2018] [Indexed: 12/12/2022] Open
Abstract
Background Colorectal cancer remains a serious public health problem due to the poor prognosis. In the present study, we attempted to develop and validate a prognostic signature to predict the individual mortality risk in colorectal cancer patients. Materials and Methods The original study datasets were downloaded from The Cancer Genome Atlas database. The present study finally included 424 colorectal cancer patients with wholly gene expression information and overall survival information. Results A nine-lncRNA prognostic signature was built through univariate and multivariate Cox proportional regression model. Time-dependent receiver operating characteristic curves in model cohort demonstrated that the Harrell's concordance indexes of nine-lncRNA prognostic signature were 0.768 (95% CI [0.717-0.819]), 0.778 (95% CI [0.727-0.829]) and 0.870 (95% CI [0.819-0.921]) for 1-year, 3-year and 5-year overall survival respectively. In validation cohort, the Harrell's concordance indexes of nine-lncRNA prognostic signature were 0.761 (95% CI [0.710-0.812]), 0.801 (95% CI [0.750-0.852]) and 0.883 (95% CI [0.832-0.934]) for 1-year, 3-year and 5-year overall survival respectively. According to the median of nine-lncRNA prognostic signature score in model cohort, 424 CRC patients could be stratified into high risk group (n = 212) and low risk group (n = 212). Kaplan-Meier survival curves showed that the overall survival rate of high risk group was significantly lower than that of low risk group (P < 0.001). Discussion The present study developed and validated a nine-lncRNA prognostic signature for individual mortality risk assessment in colorectal cancer patients. This nine-lncRNA prognostic signature is helpful to evaluate the individual mortality risk and to improve the decision making of individualized treatments in colorectal cancer patients.
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Affiliation(s)
- Zhiqiao Zhang
- Department of Infectious Diseases, Shunde Hospital, Southern Medical University, Shunde District, Guangdong, China, Shunde, Guangdong, China
| | - Qingbo Liu
- Department of Hepatobiliary Surgery, Shunde Hospital, Southern Medical University, Shunde, Guangdong, China
| | - Peng Wang
- Department of Infectious Diseases, Shunde Hospital, Southern Medical University, Shunde District, Guangdong, China, Shunde, Guangdong, China
| | - Jing Li
- Department of Infectious Diseases, Shunde Hospital, Southern Medical University, Shunde District, Guangdong, China, Shunde, Guangdong, China
| | - Tingshan He
- Department of Infectious Diseases, Shunde Hospital, Southern Medical University, Shunde District, Guangdong, China, Shunde, Guangdong, China
| | - Yanling Ouyang
- Department of Infectious Diseases, Shunde Hospital, Southern Medical University, Shunde District, Guangdong, China, Shunde, Guangdong, China
| | - Yiyan Huang
- Department of Infectious Diseases, Shunde Hospital, Southern Medical University, Shunde District, Guangdong, China, Shunde, Guangdong, China
| | - Weidong Wang
- Department of Hepatobiliary Surgery, Shunde Hospital, Southern Medical University, Shunde, Guangdong, China
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21
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Huang K, Zhang S, Zhu Y, Guo C, Yang M, Liu J, Xia L, Zhang J. Hotair mediates tumorigenesis through recruiting EZH2 in colorectal cancer. J Cell Biochem 2018; 120:6071-6077. [PMID: 30362162 DOI: 10.1002/jcb.27893] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Accepted: 09/24/2018] [Indexed: 01/01/2023]
Affiliation(s)
- Kai‐bin Huang
- Department of Gastrointestinal Surgery Second Clinical Medical College of Jinan University, Shenzhen People’s Hospital Shenzhen China
| | - Shi‐pai Zhang
- Department of Gastrointestinal Surgery Second Clinical Medical College of Jinan University, Shenzhen People’s Hospital Shenzhen China
| | - Yong‐jun Zhu
- Department of Gastrointestinal Surgery Second Clinical Medical College of Jinan University, Shenzhen People’s Hospital Shenzhen China
| | - Chun‐hua Guo
- Department of Gastrointestinal Surgery Second Clinical Medical College of Jinan University, Shenzhen People’s Hospital Shenzhen China
| | - Min Yang
- Shenzhen Ritzcon Biological Technology Co, Ltd Shenzhen Guangdong China
| | - Jun Liu
- Shenzhen Ritzcon Biological Technology Co, Ltd Shenzhen Guangdong China
| | - Li‐gang Xia
- Department of Gastrointestinal Surgery Second Clinical Medical College of Jinan University, Shenzhen People’s Hospital Shenzhen China
| | - Jin‐fang Zhang
- Key Laboratory of Orthopaedics and Traumatology, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, The First Clinical Medical College, Guangzhou University of Chinese Medicine Guangzhou China
- Lingnan Medical Research Center, Guangzhou University of Chinese Medicine Guangzhou China
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22
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Huang W, Liu Z, Li Y, Liu L, Mai G. Identification of long noncoding RNAs biomarkers for diagnosis and prognosis in patients with colon adenocarcinoma. J Cell Biochem 2018; 120:4121-4131. [PMID: 30269368 DOI: 10.1002/jcb.27697] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Accepted: 08/27/2018] [Indexed: 12/27/2022]
Affiliation(s)
- Wei Huang
- Department of Gastrointestinal Surgery The Affiliated Hospital of Southwest Medical University Sichuan China
- Department of Gastrointestinal Surgery The People's Hospital of Deyang City Deyang Sichuan China
| | - Zhen Liu
- Department of Gastrointestinal Surgery The People's Hospital of Deyang City Deyang Sichuan China
| | - Yu Li
- Department of General Surgery The People's Hospital of Deyang City Deyang Sichuan China
| | - Lilong Liu
- Department of Gastrointestinal Surgery The People's Hospital of Deyang City Deyang Sichuan China
| | - Gang Mai
- Department of Hepatopancreatobiliary Surgery The People's Hospital of Deyang City Deyang Sichuan China
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23
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Alidoust M, Hamzehzadeh L, Rivandi M, Pasdar A. Polymorphisms in non-coding RNAs and risk of colorectal cancer: A systematic review and meta-analysis. Crit Rev Oncol Hematol 2018; 132:100-110. [PMID: 30447914 DOI: 10.1016/j.critrevonc.2018.09.003] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Revised: 07/23/2018] [Accepted: 09/05/2018] [Indexed: 02/07/2023] Open
Abstract
Colorectal cancer (CRC) has been regarded as a common cancer due to its prevailing incidence in both males and females. Recently, non-coding RNAs used as biomarkers for screening, diagnosis and prognosis of different cancers have been under the focus of attention. As a result of this, the aim of this study was to systematically review articles that investigated the SNPs in genes related to microRNAs and long non-coding RNAs to assess the genetic susceptibility of colorectal cancer risk. The outcome is presented as the results of a meta-analysis. We systematically searched PubMed, Web of Science, and Scopus to identify relevant studies published up to 20/5/2017. These included eligible studies consisting of 23,581 patients and 22,697 controls. The conferred risk was estimated and presented using odds ratios (ORs) and 95% confidence intervals (CI). The Hardy-Weinberg equilibrium (HWE) was assessed by the goodness-of-fit chi-square test in all studies. The power of each study was also calculated based on the available results. Out of 27 different microRNAs which had published results, although most of the studies were under powered, miR-146a and miR-196a were amongst the most studied microRNAs. For five miRNAs (miR-196a, miR-146a, miR-27a, miR-499 and miR-149) which we performed a meta-analysis, miR-27a and miR-149 gene polymorphisms were associated with susceptibility to CRC. Other miRNAs did not show any effect on the CRC risk. Overall, significant association between miR-149 rs2292832 and susceptibility to cancer was identified in a recessive genetic model, TT/ (TC + CC) (OR = 1.19, 95% CI = 1.02-1.39, P = 0.02). On the other hand, rs895819 (miR-27a) GG carriers were more susceptible to CRC (OR = 1.47, 95% CI = 1.21-1.78, P = <0.05) in a recessive genetic model. Analysis of the data based on race revealed that rs2910164 (miR-146a) polymorphism may decrease the risk of CRC among Europeans, in a co dominant model [OR = 0.81, 95% CI 0.66-0.99, p = 0.04], but not among Asians. In conclusion, certain miRNAs (miR-27a and miR-149) may affect the CRC risk and can be regarded as genetic markers amongst different populations. LncRNAs still have to be studied more to reach a conclusion for their association with CRC risk.
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Affiliation(s)
- Maryam Alidoust
- Department of Medical Genetics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Leila Hamzehzadeh
- Department of Medical Genetics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mahdi Rivandi
- Medical Genetics Research Centre, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Alireza Pasdar
- Department of Medical Genetics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran; Division of Applied Medicine, Medical School, University of Aberdeen, Foresterhill, Aberdeen, UK.
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24
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Li M, Zhao LM, Li SL, Li J, Gao B, Wang FF, Wang SP, Hu XH, Cao J, Wang GY. Differentially expressed lncRNAs and mRNAs identified by NGS analysis in colorectal cancer patients. Cancer Med 2018; 7:4650-4664. [PMID: 30039525 PMCID: PMC6144144 DOI: 10.1002/cam4.1696] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2018] [Revised: 06/09/2018] [Accepted: 06/26/2018] [Indexed: 01/10/2023] Open
Abstract
Long noncoding RNAs (lncRNAs) play an important role in gene regulation, but their impact on the pathogenesis of colorectal cancer and the biological function of cancer cells is unclear. In this study, we used next‐generation sequencing to study the differences in the expression profiles of lncRNAs and mRNAs in colorectal cancer tissues. We analyzed the differentially expressed genes by Gene Ontology/Kyoto Encyclopedia of Genes and Genomes (GO/KEGG) enrichment and predicted new lncRNA functions. Our results revealed that compared with lncRNAs and mRNAs in nontumor colorectal tissues, 1019 lncRNAs (512 upregulated, 507 downregulated) and 3221 mRNAs (1606 upregulated, 1615 downregulated) were differentially expressed in tumor colorectal tissues (fold change >2 and P < 0.05). We validated some of these genes by qPCR. Furthermore, we identified some new lncRNAs differently expressed in colorectal cancer samples from patients in northern China. We confirmed the function of lncRNA‐FIRRE‐201 and SLCO4A1‐AS1‐202 in colorectal cancer cells to provide an experimental basis for studies on their roles in the occurrence and development of colorectal cancer and in the regulation of networks.
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Affiliation(s)
- Meng Li
- Pediatric Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China.,The Second General Surgery, Hebei Medical University Fourth Affiliated Hospital and Hebei Provincial Tumor Hospital, Shijiazhuang, Hebei, China
| | - Lian-Mei Zhao
- Research Center, Hebei Medical University Fourth Affiliated Hospital and Hebei Provincial Tumor Hospital, Shijiazhuang, Hebei, China
| | - Suo-Lin Li
- Pediatric Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Jing Li
- The Second General Surgery, Hebei Medical University Fourth Affiliated Hospital and Hebei Provincial Tumor Hospital, Shijiazhuang, Hebei, China
| | - Bo Gao
- The Second General Surgery, Hebei Medical University Fourth Affiliated Hospital and Hebei Provincial Tumor Hospital, Shijiazhuang, Hebei, China
| | - Fei-Fei Wang
- The Second General Surgery, Hebei Medical University Fourth Affiliated Hospital and Hebei Provincial Tumor Hospital, Shijiazhuang, Hebei, China
| | - Sheng-Pu Wang
- The Second General Surgery, Hebei Medical University Fourth Affiliated Hospital and Hebei Provincial Tumor Hospital, Shijiazhuang, Hebei, China
| | - Xu-Hua Hu
- The Second General Surgery, Hebei Medical University Fourth Affiliated Hospital and Hebei Provincial Tumor Hospital, Shijiazhuang, Hebei, China
| | - Jian Cao
- The Second General Surgery, Hebei Medical University Fourth Affiliated Hospital and Hebei Provincial Tumor Hospital, Shijiazhuang, Hebei, China
| | - Gui-Ying Wang
- The Second General Surgery, Hebei Medical University Fourth Affiliated Hospital and Hebei Provincial Tumor Hospital, Shijiazhuang, Hebei, China
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25
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Vychytilova-Faltejskova P, Stitkovcova K, Radova L, Sachlova M, Kosarova Z, Slaba K, Kala Z, Svoboda M, Kiss I, Vyzula R, Cho WC, Slaby O. Circulating PIWI-Interacting RNAs piR-5937 and piR-28876 Are Promising Diagnostic Biomarkers of Colon Cancer. Cancer Epidemiol Biomarkers Prev 2018; 27:1019-1028. [PMID: 29976566 DOI: 10.1158/1055-9965.epi-18-0318] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Revised: 05/01/2018] [Accepted: 06/22/2018] [Indexed: 11/16/2022] Open
Abstract
Background: The early detection of colon cancer is one of the main prerequisites for successful treatment and mortality reduction. Circulating PIWI-interacting RNAs (piRNA) were recently identified as novel promising biomarkers. The purpose of the study was to assess the profiles of piRNAs in blood serum of colon cancer patients with the aim to identify those with high diagnostic potential.Methods: Blood serum samples from 403 colon cancer patients and 276 healthy donors were included in this 3-phase biomarker study. Large-scale piRNA expression profiling was performed using Illumina small RNA sequencing. The diagnostic potential of selected piRNAs was further validated on independent training and validation sets of samples using RT-qPCR.Results: In total, 31 piRNAs were found to be significantly deregulated in serum of cancer patients compared with healthy donors. Based on the levels of piR-5937 and piR-28876, it was possible to differentiate between cancer patients and healthy donors with high sensitivity and specificity. Moreover, both piRNAs exhibited satisfactory diagnostic performance also in patients with stage I disease and enabled detection of colon cancer with higher sensitivity than currently used biomarkers CEA and CA19-9. Finally, the expression of analyzed piRNAs in blood restored significantly 1 month after the surgical resection.Conclusions: Based on our findings, piRNAs are abundant in human blood serum. Furthermore, their levels in colon cancer have been observed to be significantly deregulated. However, their involvement in carcinogenesis must be further established.Impact: piRNAs could serve as promising noninvasive biomarkers for early detection of colon cancer. Cancer Epidemiol Biomarkers Prev; 27(9); 1019-28. ©2018 AACR.
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Affiliation(s)
- Petra Vychytilova-Faltejskova
- Centre for Molecular Medicine, Central European Institute of Technology, Masaryk University, Brno, Czech Republic.,Department of Comprehensive Cancer Care, Masaryk Memorial Cancer Institute, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Karolina Stitkovcova
- Centre for Molecular Medicine, Central European Institute of Technology, Masaryk University, Brno, Czech Republic
| | - Lenka Radova
- Centre for Molecular Medicine, Central European Institute of Technology, Masaryk University, Brno, Czech Republic
| | - Milana Sachlova
- Department of Comprehensive Cancer Care, Masaryk Memorial Cancer Institute, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Zdenka Kosarova
- Centre for Molecular Medicine, Central European Institute of Technology, Masaryk University, Brno, Czech Republic
| | - Katerina Slaba
- Centre for Molecular Medicine, Central European Institute of Technology, Masaryk University, Brno, Czech Republic
| | - Zdenek Kala
- Centre for Molecular Medicine, Central European Institute of Technology, Masaryk University, Brno, Czech Republic.,Department of Surgery, Institutions Shared with the Faculty Hospital Brno, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Marek Svoboda
- Centre for Molecular Medicine, Central European Institute of Technology, Masaryk University, Brno, Czech Republic.,Department of Comprehensive Cancer Care, Masaryk Memorial Cancer Institute, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Igor Kiss
- Department of Comprehensive Cancer Care, Masaryk Memorial Cancer Institute, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Rostislav Vyzula
- Department of Comprehensive Cancer Care, Masaryk Memorial Cancer Institute, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - William C Cho
- Cancer Research Unit, Department of Clinical Oncology, Queen Elizabeth Hospital, Kowloon, Hong Kong, PR China
| | - Ondrej Slaby
- Centre for Molecular Medicine, Central European Institute of Technology, Masaryk University, Brno, Czech Republic. .,Department of Comprehensive Cancer Care, Masaryk Memorial Cancer Institute, Faculty of Medicine, Masaryk University, Brno, Czech Republic
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26
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Liu Z, Wang H, Cai H, Hong Y, Li Y, Su D, Fan Z. Long non-coding RNA MIAT promotes growth and metastasis of colorectal cancer cells through regulation of miR-132/Derlin-1 pathway. Cancer Cell Int 2018; 18:59. [PMID: 29686537 PMCID: PMC5902964 DOI: 10.1186/s12935-017-0477-8] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Accepted: 11/14/2017] [Indexed: 12/21/2022] Open
Abstract
Objective Recently, long non-coding RNA (lncRNA) MIAT has been demonstrated as an oncogenic gene in several types of cancer. However, the role and mechanism of MIAT in colorectal cancer (CRC) have not been investigated. Methods Real-time PCR was used to measure MIAT expression in CRC tissues and cells. Small interfering RNA specific for MIAT (si-MIAT) was used to down-regulate MIAT expression in CRC cells. The interaction of MIAT and miR-132 was measured by RNA pull-down assay. The effect of si-MIAT on CRC cells apoptosis and metastasis were measured by flow cytometry assay, invasion and migration assay, respectively. Results In present study, we found that MIAT was highly expressed in CRC tissues and cells. MIAT knockdown inhibited proliferation, migration and invasion and enhanced apoptosis of CRC cells. Further, we demonstrated that MIAT acted as a competing endogenous RNA for miR-132, antagonized its functions, and resulted in the de-repression of its target gene Derlin-1, which acted as an oncogene in promoting growth and metastasis of CRC cells. In LOVO and SW480 cells with si-MIAT, miR-132 inhibitor resulted in an increase of cell proliferation, migration and invasion and a decrease of cell apoptosis, which was partially abolished by transfection of Derlin-1 shRNA. Conclusions Our data indicated that highly expressed MIAT was an oncogenic lncRNA that promoted the growth and metastasis of CRC through miR-132/Derlin-1 axis.
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Affiliation(s)
- Zhaoxia Liu
- 1Medical Center for Digestive Diseases, the Second Affiliated Hospital of Nanjing Medical University, Nanjing, China.,2Department of Gastroenterology, Affiliated Nanhua Hospital, University of South China, Hengyang, China
| | - Hai Wang
- 3Center of Pathology and Clinical Laboratory, Sir Run Run Hospital, Nanjing Medical University, Nanjing, China
| | - Hongwei Cai
- 3Center of Pathology and Clinical Laboratory, Sir Run Run Hospital, Nanjing Medical University, Nanjing, China
| | - Ye Hong
- 3Center of Pathology and Clinical Laboratory, Sir Run Run Hospital, Nanjing Medical University, Nanjing, China
| | - Yan Li
- 3Center of Pathology and Clinical Laboratory, Sir Run Run Hospital, Nanjing Medical University, Nanjing, China
| | - Dongming Su
- 3Center of Pathology and Clinical Laboratory, Sir Run Run Hospital, Nanjing Medical University, Nanjing, China.,4Department of Pathology, Nanjing Medical University, Nanjing, China
| | - Zhining Fan
- 1Medical Center for Digestive Diseases, the Second Affiliated Hospital of Nanjing Medical University, Nanjing, China.,5Digestive Endoscopic Center, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China
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27
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Dual strands of the miR-223 duplex (miR-223-5p and miR-223-3p) inhibit cancer cell aggressiveness: targeted genes are involved in bladder cancer pathogenesis. J Hum Genet 2018. [PMID: 29540855 DOI: 10.1038/s10038-018-0437-8] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Analyses of microRNA (miRNA) expression signatures obtained by RNA sequencing revealed that some passenger miRNAs (miR-144-5p, miR-145-3p, miR-149-3p, miR-150-3p, and miR-199a-3p) acted as anti-tumor miRNAs in several types of cancer cells. The involvement of passenger strands in the pathogenesis of human cancer is a novel concept. Based on the miRNA signature of bladder cancer (BC) obtained by RNA sequencing, we focused on both strands of the miR-223-duplex (miR-223-5p and miR-223-3p) and investigated their functional significance in BC cells. Ectopic expression of these miRNAs showed that both miR-223-3p (the guide strand) and miR-223-5p (the passenger strand) inhibited cancer cell migration and invasion of BC cells. The role of miR-223-5p (the passenger strand) has not been well studied. Combining gene expression studies and in silico database analyses, we demonstrated the presence of 20 putative target genes that could be regulated by miR-223-5p in BC cells. Among these targets, high expression of five genes (ANLN, INHBA, OIP5, CCNB1, and CDCA2) was significantly associated with poor prognosis of BC patients based on The Cancer Genome Atlas (TCGA) database. Moreover, we showed that a gene (ANLN) encoding a multifunctional actin-binding protein was directly regulated by miR-223-5p in BC cells. Overexpression of ANLN was observed in BC clinical specimens and high expression of ANLN was significantly associated with poor prognosis of BC patients. We suggest that studies of regulatory cancer networks, including the passenger strands of miRNAs, may provide new insights into the pathogenic mechanisms of BC.
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28
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Kapinova A, Kubatka P, Zubor P, Golubnitschaja O, Dankova Z, Uramova S, Pilchova I, Caprnda M, Opatrilova R, Richnavsky J, Kruzliak P, Danko J. The hypoxia-responsive long non-coding RNAs may impact on the tumor biology and subsequent management of breast cancer. Biomed Pharmacother 2018; 99:51-58. [PMID: 29324312 DOI: 10.1016/j.biopha.2017.12.104] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Revised: 12/20/2017] [Accepted: 12/28/2017] [Indexed: 02/09/2023] Open
Abstract
Long non-coding RNAs (lncRNAs) are DNA transcripts longer than 200 nucleotides without protein-coding potential. As they are key regulators of gene expression at chromatic, transcriptional and posttranscriptional level, they play important role in various biological and pathological processes. Dysregulation of lncRNAs has been observed in several diseases including cancer. Breast cancer is heterogeneous disease with many molecular subtypes specific in different prognosis and treatment responses. Hypoxia, a common micro-environmental feature of rapidly growing tumour is associated with metastases, recurrences and resistance to therapy. Aberrant expression of hypoxia related lncRNAs significantly correlates with poor outcomes in cancer patients, as the lncRNAs play an important regulatory role in the breast cancer-cell survival. Thus, a better understanding of lncRNAs role in the hypoxic conditions of breast cancer is crucial for precise understanding of the tumorigenesis, disease features and poor clinical outcome, especially in highly aggressive breast cancer subtypes (HER2-positive and triple-negative types). Moreover, lncRNAs may represent tumour marker predicting prognosis and therapeutic targets improving precise and personalized therapy for better patient´s survival. In this review, we summarize the recent information on lncRNAs in breast cancer with special focus on the hypoxia-responsive lncRNAs and their potential impact on the prognosis, therapy algorithms and individual outcomes. Presented data helps in better understanding of the specific mechanisms predicting new therapeutic agents and strategies for the pharmacological intervention.
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Affiliation(s)
- Andrea Kapinova
- Division of Oncology, Biomedical Center Martin, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Martin, Slovakia.
| | - Peter Kubatka
- Division of Oncology, Biomedical Center Martin, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Martin, Slovakia; Department of Medical Biology, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Martin, Slovakia
| | - Pavol Zubor
- Division of Oncology, Biomedical Center Martin, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Martin, Slovakia; Department of Obstetrics and Gynecology, Jessenius Faculty of Medicine in Martin and Martin University Hospital, Comenius University in Bratislava, Martin, Slovakia
| | - Olga Golubnitschaja
- Radiological Clinic, Rheinische Friedrich-Wilhelms-Universität Bonn, Germany; Breast Cancer Research Centre, Rheinische Friedrich-Wilhelms-Universität Bonn, Germany; Centre for Integrated Oncology, Cologne-Bonn, Rheinische Friedrich-Wilhelms-Universität Bonn, Germany
| | - Zuzana Dankova
- Division of Oncology, Biomedical Center Martin, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Martin, Slovakia
| | - Sona Uramova
- Department of Obstetrics and Gynecology, Jessenius Faculty of Medicine in Martin and Martin University Hospital, Comenius University in Bratislava, Martin, Slovakia
| | - Ivana Pilchova
- Division of Neuroscience, Biomedical Center Martin, Jessenius Faculty of Medicine, Comenius University in Bratislava, Martin, Slovakia
| | - Martin Caprnda
- 1st Department of Internal Medicine, Faculty of Medicine, Comenius University in Bratislava and University Hospital, Bratislava, Slovakia
| | - Radka Opatrilova
- Department of Chemical Drugs, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences, Brno, Czech Republic
| | - Jan Richnavsky
- Department of Gynecology and Obstetrics, Faculty of Medicine, Pavol Jozef Safarik University and The First Private Hospital Saca, Kosice, Slovakia
| | - Peter Kruzliak
- Department of Chemical Drugs, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences, Brno, Czech Republic.
| | - Jan Danko
- Department of Obstetrics and Gynecology, Jessenius Faculty of Medicine in Martin and Martin University Hospital, Comenius University in Bratislava, Martin, Slovakia
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29
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Zhu Y, Li B, Liu Z, Jiang L, Wang G, Lv M, Li D. Up-regulation of lncRNA SNHG1 indicates poor prognosis and promotes cell proliferation and metastasis of colorectal cancer by activation of the Wnt/β-catenin signaling pathway. Oncotarget 2017; 8:111715-111727. [PMID: 29340086 PMCID: PMC5762354 DOI: 10.18632/oncotarget.22903] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Accepted: 11/16/2017] [Indexed: 01/05/2023] Open
Abstract
Recently, the lncRNA small nucleolar RNA host gene (SNHG1) has been exhibited to be upregulated, which plays a crucial role in the development and prognosis of several cancers. However, the role of the biology and clinical significance of SNHG1 in the tumorigenesis of colorectal cancer (CRC) has rarely been reported. In this work, we firstly found that SNHG1 expression levels were upregulated aberrantly in colorectal cancer tissues and colorectal cancer cell lines. By Kaplan-Meier survival analysis, patients with high SNHG1 expression level had poorer overall survival (OS) and progression-free survival (PFS) than those with low SNHG1 expression. In multivariate analysis, increased SNHG1 expression was proved to be an independent unfavorable prognostic indicator for CRC. In vitro experiments revealed that SNHG1 silencing inhibited the growth and metastasis and induced apoptosis of CRC cell lines. Finally, we found that SNHG1 may induce the activation of the WNT/β-catenin pathway through regulating β-catenin expression and transcription factor-4 (TCF-4), cyclin D1 and MMP-9. Altogether, our findings demonstrated that lncRNA SNHG1, was high expressed in colorectal cancer tissues and may serve as a tumor oncogene through regulating WNT/β-catenin signal pathway, which provided a candidate diagnostic biomarker and a promising therapeutic target for patients with CRC.
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Affiliation(s)
- Yuping Zhu
- Department of Colorectal Surgery, Zhejiang Cancer Hospital, Hangzhou 310022, Zhejiang Province, China
| | - Bo Li
- Department of Colorectal Surgery, Zhejiang Cancer Hospital, Hangzhou 310022, Zhejiang Province, China
| | - Zhuo Liu
- Department of Colorectal Surgery, Zhejiang Cancer Hospital, Hangzhou 310022, Zhejiang Province, China
| | - Lai Jiang
- Department of Colorectal Surgery, Zhejiang Cancer Hospital, Hangzhou 310022, Zhejiang Province, China
| | - Gang Wang
- Department of Colorectal Surgery, Zhejiang Cancer Hospital, Hangzhou 310022, Zhejiang Province, China
| | - Min Lv
- Department of Ultrasonic, Zhejiang Cancer Hospital, Hangzhou 310022, Zhejiang Province, China
| | - Dechuan Li
- Department of Colorectal Surgery, Zhejiang Cancer Hospital, Hangzhou 310022, Zhejiang Province, China
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30
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Zhu YB, Wang ZY, Yin RH, Jiao Q, Zhao SJ, Cong YY, Xue HL, Guo D, Wang SQ, Zhu YX, Bai WL. A lncRNA-H19 transcript from secondary hair follicle of Liaoning cashmere goat: Identification, regulatory network and expression regulated potentially by its promoter methylation. Gene 2017; 641:78-85. [PMID: 29054756 DOI: 10.1016/j.gene.2017.10.028] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2017] [Revised: 09/21/2017] [Accepted: 10/10/2017] [Indexed: 12/25/2022]
Abstract
The H19 transcript (imprinted maternally expressed transcript) is well-known as long noncoding RNA (lncRNA), and it is thought to be associated with the inductive capacity of dermal papilla cells for hair-follicle reconstruction. In this study, we isolated and characterized a lncRNA-H19 transcript from the secondary hair follicle of Liaoning cashmere goat. Also, we investigated its transcriptional pattern and methylation status of H19 gene in secondary hair follicle of this breed during different stages of hair follicle cycle. Nucleotide composition analysis indicated that guanine (G) and cytosine (C) are the dominant nucleotides in the lncRNA-H19 transcript of Liaoning cashmere goat with the highest frequency distribution (11.25%) of GG nucleotide pair. The regulatory network showed that lncRNA-H19 transcript appears to have remarkably diverse regulatory relationships with its related miRNAs and the potential target genes. In secondary hair follicle, the relative expression of lncRNA-H19 transcript at the anagen phase is significantly higher than that at both telogen and catagen phases suggesting that lncRNA-H19 transcript might play essential roles in the formation and growth of cashmere fiber of goat. Methylation analysis indicated that the methylation of the promoter region of H19 gene most likely participates in its transcriptional suppression in secondary hair follicle of Liaoning cashmere goat.
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Affiliation(s)
- Yu B Zhu
- College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, PR China
| | - Ze Y Wang
- College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, PR China
| | - Rong H Yin
- College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, PR China
| | - Qian Jiao
- College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, PR China
| | - Su J Zhao
- Sichuan Animal Science Academy, Chengdu 610066, PR China
| | - Yu Y Cong
- College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, PR China
| | - Hui L Xue
- College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, PR China
| | - Dan Guo
- Academy of Animal Husbandry Science of Liaoning Province, Liaoyang 130062, PR China
| | - Shi Q Wang
- Academy of Animal Husbandry Science of Liaoning Province, Liaoyang 130062, PR China
| | - Yan X Zhu
- Academy of Animal Husbandry Science of Liaoning Province, Liaoyang 130062, PR China
| | - Wen L Bai
- College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, PR China.
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31
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Mjelle R, Sellæg K, Sætrom P, Thommesen L, Sjursen W, Hofsli E. Identification of metastasis-associated microRNAs in serum from rectal cancer patients. Oncotarget 2017; 8:90077-90089. [PMID: 29163812 PMCID: PMC5685733 DOI: 10.18632/oncotarget.21412] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Accepted: 08/31/2017] [Indexed: 12/22/2022] Open
Abstract
MicroRNAs (miRNAs) are promising prognostic and diagnostic biomarkers due to their high stability in blood. Here we investigate the expression of miRNAs and other noncoding (nc) RNAs in serum of rectal cancer patients. Serum from 96 rectal cancer patients was profiled using small RNA sequencing and expression of small RNAs was correlated with the clinicopathological characteristics of the patients. Multiple classes of RNAs were detected, including miRNAs and fragments of tRNAs, snoRNAs, long ncRNAs, and other classes of RNAs. Several miRNAs, miRNA variants (isomiRs) and other ncRNAs were differentially expressed between Stage IV and Stage I-III rectal cancer patients, including several members of the miR-320 family. Furthermore, we show that high expression of miR-320d as well as one tRNA fragment is associated with poor survival. We also show that several miRNAs and isomiRs are differentially expressed between patients receiving preoperative chemoradiotherapy and patients who did not receive any treatment before serum collection. In summary, our study shows that the expression of miRNAs and other small ncRNAs in serum may be used to predict distant metastasis and survival in rectal cancer.
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Affiliation(s)
- Robin Mjelle
- Department of Clinical and Molecular Medicine, NO-7491 Trondheim, Norway
| | - Kjersti Sellæg
- Department of Clinical and Molecular Medicine, NO-7491 Trondheim, Norway
| | - Pål Sætrom
- Department of Clinical and Molecular Medicine, NO-7491 Trondheim, Norway.,Department of Computer Science, Norwegian University of Science and Technology, NO-7491 Trondheim, Norway
| | - Liv Thommesen
- Department of Biomedical Science, Norwegian University of Science and Technology, 7030 Trondheim Norway
| | - Wenche Sjursen
- Department of Clinical and Molecular Medicine, NO-7491 Trondheim, Norway.,Department of Medical Genetics, St. Olavs Hospital, Norwegian University of Science and Technology, 7030 Trondheim Norway
| | - Eva Hofsli
- Department of Clinical and Molecular Medicine, NO-7491 Trondheim, Norway.,The Cancer Clinic, St. Olavs Hospital, Trondheim University Hospital, 7030 Trondheim, Norway
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A novel lncRNA, LL22NC03-N64E9.1, represses KLF2 transcription through binding with EZH2 in colorectal cancer. Oncotarget 2017; 8:59435-59445. [PMID: 28938648 PMCID: PMC5601744 DOI: 10.18632/oncotarget.19738] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Accepted: 06/12/2017] [Indexed: 01/05/2023] Open
Abstract
Long noncoding RNAs (lncRNA) have been implicated in variety human cancer but their mechanisms of function are mainly undocumented. In the present study, we investigated lncRNAs alteration that contributed to colorectal cancer (CRC) by utilizing TCGA RNA sequencing data and other publicly available lncRNAs expression profiling data. Here, We screened out the CRC-associated lncRNA LL22NC03-N64E9.1, a key regulator of CRC development and progression. We also revealed that knockdown of LL22NC03-N64E9.1 inhibited cell proliferation, colony formation, tumorigenicity and apoptosis promotion, both in vitro and in vivo. Mechanistically, LL22NC03-N64E9.1 repressed underlying target gene KLF2 transcription through binding to EZH2. Furthermore, rescue experiments revealed that LL22NC03-N64E9.1 oncogenic function may partially depend on repressing KLF2. Taken together, our results suggested that LL22NC03-N64E9.1 confered an oncogenic function in human CRC and may serve as a candidate prognostic biomarker and target for new therapies in this deadly disease.
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Idichi T, Seki N, Kurahara H, Yonemori K, Osako Y, Arai T, Okato A, Kita Y, Arigami T, Mataki Y, Kijima Y, Maemura K, Natsugoe S. Regulation of actin-binding protein ANLN by antitumor miR-217 inhibits cancer cell aggressiveness in pancreatic ductal adenocarcinoma. Oncotarget 2017; 8:53180-53193. [PMID: 28881803 PMCID: PMC5581102 DOI: 10.18632/oncotarget.18261] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Accepted: 05/08/2017] [Indexed: 01/05/2023] Open
Abstract
Analysis of our microRNA (miRNA) expression signature of pancreatic ductal adenocarcinoma (PDAC) revealed that microRNA-217 (miR-217) was significantly reduced in cancer tissues. The aim of this study was to investigate the antitumor roles of miR-217 in PDAC cells and to identify miR-217-mediated molecular pathways involved in PDAC aggressiveness. The expression levels of miR-217 were significantly reduced in PDAC clinical specimens. Ectopic expression of miR-217 significantly suppressed cancer cell migration and invasion. Transcription of actin-binding protein Anillin (coded by ANLN) was detected by our in silico and gene expression analyses. Moreover, luciferase reporter assays showed that ANLN was a direct target of miR-217 in PDAC cells. Overexpression of ANLN was detected in PDAC clinical specimens by real-time PCR methods and immunohistochemistry. Interestingly, Kaplan-Meier survival curves showed that high expression of ANLN predicted shorter survival in patients with PDAC by TCGA database analysis. Silencing ANLN expression markedly inhibited cancer cell migration and invasion capabilities of PDAC cell lines. We further investigated ANLN-mediated downstream pathways in PDAC cells. "Focal adhesion" and "Regulation of actin binding protein" were identified as ANLN-modulated downstream pathways in PDAC cells. Identification of antitumor miR-217/ANLN-mediated PDAC pathways will provide new insights into the potential mechanisms underlying the aggressive course of PDAC.
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Affiliation(s)
- Tetsuya Idichi
- Department of Digestive Surgery, Breast and Thyroid Surgery, Graduate School of Medical Sciences, Kagoshima University, Kagoshima, Japan
| | - Naohiko Seki
- Department of Functional Genomics, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Hiroshi Kurahara
- Department of Digestive Surgery, Breast and Thyroid Surgery, Graduate School of Medical Sciences, Kagoshima University, Kagoshima, Japan
| | - Keiichi Yonemori
- Department of Digestive Surgery, Breast and Thyroid Surgery, Graduate School of Medical Sciences, Kagoshima University, Kagoshima, Japan
| | - Yusaku Osako
- Department of Digestive Surgery, Breast and Thyroid Surgery, Graduate School of Medical Sciences, Kagoshima University, Kagoshima, Japan
| | - Takayuki Arai
- Department of Functional Genomics, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Atsushi Okato
- Department of Functional Genomics, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Yoshiaki Kita
- Department of Digestive Surgery, Breast and Thyroid Surgery, Graduate School of Medical Sciences, Kagoshima University, Kagoshima, Japan
| | - Takaaki Arigami
- Department of Digestive Surgery, Breast and Thyroid Surgery, Graduate School of Medical Sciences, Kagoshima University, Kagoshima, Japan
| | - Yuko Mataki
- Department of Digestive Surgery, Breast and Thyroid Surgery, Graduate School of Medical Sciences, Kagoshima University, Kagoshima, Japan
| | - Yuko Kijima
- Department of Digestive Surgery, Breast and Thyroid Surgery, Graduate School of Medical Sciences, Kagoshima University, Kagoshima, Japan
| | - Kosei Maemura
- Department of Digestive Surgery, Breast and Thyroid Surgery, Graduate School of Medical Sciences, Kagoshima University, Kagoshima, Japan
| | - Shoji Natsugoe
- Department of Digestive Surgery, Breast and Thyroid Surgery, Graduate School of Medical Sciences, Kagoshima University, Kagoshima, Japan
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Long noncoding RNA BLACAT1 indicates a poor prognosis of colorectal cancer and affects cell proliferation by epigenetically silencing of p15. Cell Death Dis 2017; 8:e2665. [PMID: 28277544 PMCID: PMC5386575 DOI: 10.1038/cddis.2017.83] [Citation(s) in RCA: 86] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2016] [Revised: 02/03/2017] [Accepted: 02/06/2017] [Indexed: 12/16/2022]
Abstract
Recently, a novel class of transcripts, long noncoding RNAs (lncRNAs), is being identified at a rapid pace. These RNAs have critical roles in diverse biological processes, including tumorigenesis. One of them, BLACAT1, a cancer-associated long noncoding RNA, exerts regulatory functions in various biological processes in cancer cells, however, the role of BLACAT1 in colon cancer remains unclear. Our experiments showed that increased BLACAT1 was an independent unfavorable prognostic indicator for colorectal cancer, and revealed that BLACAT1 knockdown significantly repressed proliferation, both in vitro and in vivo. Mechanistic investigations demonstrated that BLACAT1 had a key role in G1/G0 arrest, and showed that BLACAT1 can repress p15 expression by binding to EZH2, thus contributing to the regulation of CRC cell cycle and proliferation. Our results suggest that BLACAT1, as a cell cycle regulator, may serve as a potential target for colon cancer prevention and treatment in human CRC.
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Qin N, Tong GF, Sun LW, Xu XL. Long Noncoding RNA MEG3 Suppresses Glioma Cell Proliferation, Migration, and Invasion by Acting as a Competing Endogenous RNA of miR-19a. Oncol Res 2017; 25:1471-1478. [PMID: 28276316 PMCID: PMC7841124 DOI: 10.3727/096504017x14886689179993] [Citation(s) in RCA: 100] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Glioma, with varying malignancy grades and histological subtypes, is the most common primary brain tumor in adults. Long noncoding RNAs (lncRNAs) are non-protein-coding transcripts and have been proven to play an important role in tumorigenesis. Our study aims to elucidate the combined effect of lncRNA maternally expressed gene 3 (MEG3) and microRNA-19a (miR-19a) in human glioma U87 and U251 cell lines. Real-time PCR revealed that MEG3 was downregulated and miR-19a was upregulated in malignant glioma tissues and cell lines. Bioinformatics analyses (TargetScan, miRanda, and starBase V2.0) showed that phosphatase and tensin homolog (PTEN) is a target of miR-19a with complementary binding sites in the 3'-UTR. As expected, luciferase results verified the putative target site and also revealed the complementary binding between miR-19a and MEG3. miR-19a represses the expression of PTEN and promotes glioma cell proliferation, migration, and invasion. However, MEG3 could directly bind to miR-19a and effectively act as a competing endogenous RNA (ceRNA) for miR-19a to suppress tumorigenesis. Our study is the first to demonstrate that lncRNA MEG3 suppresses glioma cell proliferation, migration, and invasion by acting as a ceRNA of miR-19a, which provides a novel insight about the pathogenesis of glioma.
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Zeng JH, Liang L, He RQ, Tang RX, Cai XY, Chen JQ, Luo DZ, Chen G. Comprehensive investigation of a novel differentially expressed lncRNA expression profile signature to assess the survival of patients with colorectal adenocarcinoma. Oncotarget 2017; 8:16811-16828. [PMID: 28187432 PMCID: PMC5370003 DOI: 10.18632/oncotarget.15161] [Citation(s) in RCA: 78] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Accepted: 01/24/2017] [Indexed: 02/06/2023] Open
Abstract
Growing evidence has shown that long non-coding RNAs (lncRNAs) can serve as prospective markers for survival in patients with colorectal adenocarcinoma. However, most studies have explored a limited number of lncRNAs in a small number of cases. The objective of this study is to identify a panel of lncRNA signature that could evaluate the prognosis in colorectal adenocarcinoma based on the data from The Cancer Genome Atlas (TCGA). Altogether, 371 colon adenocarcinoma (COAD) patients with complete clinical data were included in our study as the test cohort. A total of 578 differentially expressed lncRNAs (DELs) were observed, among which 20 lncRNAs closely related to overall survival (OS) in COAD patients were identified using a Cox proportional regression model. A risk score formula was developed to assess the prognostic value of the lncRNA signature in COAD with four lncRNAs (LINC01555, RP11-610P16.1, RP11-108K3.1 and LINC01207), which were identified to possess the most remarkable correlation with OS in COAD patients. COAD patients with a high-risk score had poorer OS than those with a low-risk score. The multivariate Cox regression analyses confirmed that the four-lncRNA signature could function as an independent prognostic indicator for COAD patients, which was largely mirrored in the validating cohort with rectal adenocarcinoma (READ) containing 158 cases. In addition, the correlative genes of LINC01555 and LINC01207 were enriched in the cAMP signaling and mucin type O-Glycan biosynthesis pathways. With further validation in the future, our study indicates that the four-lncRNA signature could serve as an independent biomarker for survival of colorectal adenocarcinoma.
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Affiliation(s)
- Jiang-Hui Zeng
- Department of Pathology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, P. R. China
| | - Liang Liang
- Department of General Surgery, First Affiliated Hospital of Guangxi Medical University (West Branch), Nanning, Guangxi Zhuang Autonomous Region, P. R. China
| | - Rong-Quan He
- Department of Medical Oncology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, P. R. China
| | - Rui-Xue Tang
- Department of Pathology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, P. R. China
| | - Xiao-Yong Cai
- Department of General Surgery, First Affiliated Hospital of Guangxi Medical University (West Branch), Nanning, Guangxi Zhuang Autonomous Region, P. R. China
| | - Jun-Qiang Chen
- Department of Gastrointestinal Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, P. R. China
| | - Dian-Zhong Luo
- Department of Pathology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, P. R. China
| | - Gang Chen
- Department of Pathology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, P. R. China
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Li J, Lian Y, Yan C, Cai Z, Ding J, Ma Z, Peng P, Wang K. Long non-coding RNA FOXP4-AS1 is an unfavourable prognostic factor and regulates proliferation and apoptosis in colorectal cancer. Cell Prolif 2016; 50. [PMID: 27790757 DOI: 10.1111/cpr.12312] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Accepted: 09/22/2016] [Indexed: 12/11/2022] Open
Abstract
OBJECTIVES Despite improvements in diagnosis and treatment, colorectal cancer (CRC) remains the third most common malignancy, and fourth-leading cause of cancer-related death worldwide, and has a particularly high incidence in Western countries. Recent studies have suggested that long non-coding RNAs (lncRNAs) compose a novel class of regulators of cancer biological processes, such as proliferation, apoptosis and metastasis. Here, we report that lncRNA FOXP4-AS1 acts as a functional oncogene in CRC pathogenesis. Moreover, we have attempted to investigate the effects of FOXP4-AS1 on tumour progression, both in vitro and in vivo. MATERIALS AND METHODS In this study, bioinformatic analyses and qPCR were performed to investigate FOXP4-AS1 expression in CRC tissue samples and CRC cell lines. We inhibited FOXP4-AS1 expression via FOXP4-AS1-specific siRNA transfection. Cell proliferation was assessed using cell viability and colony formation assays, as well as by flow cytometry and ethynyl deoxyuridine (Edu) analyses. Apoptosis was assessed using flow cytometry. Animal tumour xenografts were generated, and immunohistochemistry (IHC) was performed to evaluate effects of FOXP4-AS1 on CRC tumour growth in vivo. RESULTS We found that FOXP4-AS1 was up-regulated in CRC tissues and cell lines and that its overexpression positively correlated with advanced pathological stages and larger tumour size. Additionally, we found that FOXP4-AS1 knockdown inhibited cell proliferation and induced apoptosis. Furthermore, FOXP4-AS1 knockdown induced marked increase in number of cells in G0/G1 phase and reduction in number of cells in S phase, in DLD-1, HT-29 and HCT116 cell lines. Consistent with these findings, FOXP4-AS1 silencing inhibited tumour growth in vivo. CONCLUSION These findings suggest that FOXP4-AS1 plays a crucial role in CRC progression and may be a new biomarker in patients with CRC.
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Affiliation(s)
- Juan Li
- The Second Clinical Medical College of Nanjing Medical University, Nanjing, Jiangsu, China.,Department of Oncology, Second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Yifan Lian
- The Second Clinical Medical College of Nanjing Medical University, Nanjing, Jiangsu, China.,Department of Oncology, Second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Changsheng Yan
- Department of Obstetrics and Gynecology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Zeling Cai
- Department of General Surgery, Second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Jie Ding
- Department of Oncology, Second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Zhonghua Ma
- Department of Oncology, Second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Peng Peng
- Department of Oncology, Second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Keming Wang
- The Second Clinical Medical College of Nanjing Medical University, Nanjing, Jiangsu, China.,Department of Oncology, Second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
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Li C, Zhou L, He J, Fang XQ, Zhu SW, Xiong MM. Increased long noncoding RNA SNHG20 predicts poor prognosis in colorectal cancer. BMC Cancer 2016; 16:655. [PMID: 27543107 PMCID: PMC4992210 DOI: 10.1186/s12885-016-2719-x] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2016] [Accepted: 08/11/2016] [Indexed: 02/07/2023] Open
Abstract
Background Long noncoding RNAs (lncRNAs) have been suggested to be involved in the development and progression of malignancies. However, the investigation of small nucleolar RNA host gene 20 (SNHG20) on cancer progression remains unknown. The present study aims to explore the clinical significance of SNHG20 and its potential molecular mechanism in colorectal cancer (CRC). Methods Quantitative real-time PCR (qRT-PCR) was used to measure the SNHG20 expression in a total of 107 CRC tissues and CRC cell lines. Loss of function approach was employed to explore the biological roles of SNHG20 in vitro. Its potential molecular mechanism was further verified by western blotting and qRT-PCR. Results The results suggested that SNHG20 expression was significantly upregulated in CRC tissues compared to corresponding normal tissues from 107 CRC patients. High expression of SNHG20 was remarkably associated with advanced TNM stage in patients with CRC. Multivariate analyses unraveled that SNHG20 expression was an independent prognostic factor for overall survival in CRC patients. Further functional assays revealed that knockdown of SNHG20 suppressed cell proliferation, invasion and migration, and cell cycle progression in CRC cells. Moreover, SNHG20 regulated cell growth through modulation of a series of cell cycle-associated genes. Conclusions Our findings suggest that dysregulation of SNHG20 participates in CRC progression and may serve as a potential therapeutic target in CRC patients.
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Affiliation(s)
- Cong Li
- Department of Minimally Invasive Surgery, The People's Hospital of Chizhou, Chizhou, 247000, China
| | - Li Zhou
- Department of Minimally Invasive Surgery, The People's Hospital of Chizhou, Chizhou, 247000, China
| | - Jun He
- Department of Minimally Invasive Surgery, The People's Hospital of Chizhou, Chizhou, 247000, China
| | - Xue-Qing Fang
- Department of Minimally Invasive Surgery, The People's Hospital of Chizhou, Chizhou, 247000, China
| | - Shao-Wen Zhu
- Department of Minimally Invasive Surgery, The People's Hospital of Chizhou, Chizhou, 247000, China
| | - Mao-Ming Xiong
- Department of General Surgery, First Hospital Affiliated to Anhui Medical University, Hefei, 230022, China.
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