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Cieślak A, Galita G, Mik M, Dziki Ł, Dziki A, Sokołowski I, Popławski T, Majsterek I. Association of GEMIN4 gene polymorphisms with the
risk of colorectal cancer in the Polish population. POLISH JOURNAL OF SURGERY 2021; 93:40-45. [PMID: 35384865 DOI: 10.5604/01.3001.0015.5164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
<br><b>Aim:</b> Gem-associated protein 4 (GEMIN4), a member of the GEMIN gene family, is a key compound of the regulating factors responsible for miRNA biogenesis. Genetic variability within this gene can alter the risk for development of colorectal cancer (CRC) as was shown for other genes involved in miRNA biogenesis. Therefore, presented study was intended to identify genetic variants of three single nucleotide polymorphisms (SNPs) in the GEMIN4 gene (rs1062923, rs2740348 and rs910925) and their relationship with CRC.</br>
<br><b>Methods:</b> The study comprised 203 patients and 179 age and sex matched controls. Genotyping of GEMIN4 gene variants was done using Taqman® assay. The association of GEMIN4 variants with CRC was done by odds ratio analysis. Haplotype analysis was done to see the combined effect of studied variants on CRC.</br>
<br><b>Results:</b> Patients carrying all variant genotypes for GEMIN4 rs1062923 (odds ratio [OR]= 0.205; 95% confidence interval [CI] = 0.1034–0.4065 for CC variant and [OR] = 0.1436; [CI] = 0.0869–0.2373 for CT variant, respectively) and GEMIN4 rs2740348 (odds ratio [OR] = 0.4498; 95% confidence interval [CI] = 0.2342–0.8637 for CC variant and [OR] = 0.3986; [CI] = 0.2043–0.7776 for CG variant, respectively) showed significant association in lower occurrence of cancer, whereas in case of GEMIN4 G/C rs910925 variant genotype, no significance correlation was found.</br>
<br><b>Conclusion:</b> Our study gives a substantive support for the association between the GEMIN4 gene variants/miRNA biogenesis and CRC risk.</br>
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Affiliation(s)
- Adrianna Cieślak
- Department of Clinical Chemistry and Biochemistry, Medical University, Lodz, Poland; Head: prof. Ireneusz Majsterek MD PhD
| | - Grzegorz Galita
- Department of Clinical Chemistry and Biochemistry, Medical University, Lodz, Poland; Head: prof. Ireneusz Majsterek MD PhD
| | - Michał Mik
- Department of General and Colorectal Surgery, Medical University, Lodz, Poland; Head: prof. Adam Dziki MD PhD
| | - Łukasz Dziki
- Department of General and Oncological Surgery, Medical University, Lodz, Poland; Head: prof. Łukasz Dziki MD PhD
| | - Adam Dziki
- Department of General and Colorectal Surgery, Medical University, Lodz, Poland; Head: prof. Adam Dziki MD PhD
| | - Igor Sokołowski
- Department of Pharmaceutical Microbiology and Biochemistry, Medical University, Lodz, Poland; Head: prof. Tomasz Popławski PhD
| | - Tomasz Popławski
- Department of Pharmaceutical Microbiology and Biochemistry, Medical University, Lodz, Poland; Head: prof. Tomasz Popławski PhD
| | - Ireneusz Majsterek
- Department of Clinical Chemistry and Biochemistry, Medical University, Lodz, Poland; Head: prof. Ireneusz Majsterek MD PhD
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Li LZ, Wu ZZ, Lv Z. The Clinical Significance of miR-21 in Guiding Chemotherapy for Patients with Osteosarcoma. Pharmgenomics Pers Med 2021; 14:1247-1261. [PMID: 34616172 PMCID: PMC8488037 DOI: 10.2147/pgpm.s321637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Accepted: 08/16/2021] [Indexed: 11/23/2022] Open
Abstract
Objective The present study aims to explore the correlation between osteosarcoma (OS) chemosensitivity and the expression levels of serum and tumor tissue micro-ribonucleic acid-21 (miR-21). Methods The relevant miR-21 expression levels in 30 patients with OS were detected, and the gender, age, tumor location, pathological type, Enneking stage, and miR-21 expression changes before and after chemotherapy were retrospectively analyzed. Results Serum and tumor tissue miR21 expression levels were significantly higher in patients with OS than in control subjects; the serum miR-21 expressions before and after chemotherapy were not related to patient age and gender. The effective chemotherapy group showed significant differences in miR-21 expression levels before and after chemotherapy. Conclusion Serum and tumor tissue miR-21 expression levels in patients with OS are closely related to the effects of chemotherapy, making miR-21 a potential biomarker and therapeutic target for the diagnosis and evaluation of chemotherapy effects on patients with OS.
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Affiliation(s)
- Li-Zhi Li
- Department of Orthopaedics, The Second Hospital of Shanxi Medical University, Taiyuan, 030001, People's Republic of China
| | - Zhuang-Zhuang Wu
- Department of Orthopaedics, The Second Hospital of Shanxi Medical University, Taiyuan, 030001, People's Republic of China
| | - Zhi Lv
- Department of Orthopaedics, The Second Hospital of Shanxi Medical University, Taiyuan, 030001, People's Republic of China
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3
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Guo S, Shan S, Wu H, Hao H, Li Z. Recombinant water stress protein 1 (Re-WSP1) suppresses colon cancer cell growth through the miR-539/β-catenin signaling pathway. Mol Biol Rep 2021; 48:7059-7065. [PMID: 34596809 DOI: 10.1007/s11033-021-06549-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 07/08/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND Nostoc commune Vauch. is a nitrogen-fixing blue-green algae that expresses a large number of active molecules with medicinal properties. Our previous study found that a water stress protein (WSP1) from N. commune and its recombinant counterpart (Re-WSP1) exhibited significant anti-colon cancer activity both in vitro and in vivo. This study is to investigate the effects of Re-WSP1 on proliferation of colon cancer cells and to elucidate the relevant mechanisms. METHODS Real-time quantitative PCR was used to detect the expression of miR-539 in colon cancer HT-29 and DLD1 cells. Colon cancer cells were transfected with miR-539 mimics and negative controls, and cell proliferation were detected by CCK8 and clonogenic assays. The target gene of miR-539 was predicted, and the dual luciferase reporter gene experiment was used to verify the target gene. After colon cancer cells were transfected with miR-539 mimics or inhibitors, the expression of target gene β-catenin was detected by Western blot. miR-539 inhibitor confirmed cell proliferation. RESULTS Re-WSP1 inhibited colon cancer cell growth in a dose-dependent manner. Re-WSP1 inhibited the expression of β-catenin, which was partly reversed by LiCl treatment. Quantitative PCR analysis showed that the expression of miR-539 was significantly upregulated after Re-WSP1 treatment. Moreover, miR-539 negatively regulated the expression of β-catenin by directly binding to the 3'UTR of β-catenin mRNA. The cell growth inhibition and the decrease in β-catenin expression induced by Re-WSP1 were significantly reversed by miR-539 inhibitor. CONCLUSION Re-WSP1 suppresses colon cancer cell growth via the miR-539/β-catenin axis.
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Affiliation(s)
- Songjia Guo
- Nephrology Department, Shanxi Provincial People's Hospital, 29 Twin Pagoda Temple Street, Taiyuan, China
| | - Shuhua Shan
- School of Life Science, Shanxi University, 92 Wucheng Road, Taiyuan, Shanxi, China
| | - Haili Wu
- School of Life Science, Shanxi University, 92 Wucheng Road, Taiyuan, Shanxi, China
| | - Huiqiang Hao
- Nephrology Department, Shanxi Provincial People's Hospital, 29 Twin Pagoda Temple Street, Taiyuan, China
| | - Zhuoyu Li
- School of Life Science, Shanxi University, 92 Wucheng Road, Taiyuan, Shanxi, China.
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4
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MiR-137 Targets the 3' Untranslated Region of MSH2: Potential Implications in Lynch Syndrome-Related Colorectal Cancer. Cancers (Basel) 2021; 13:cancers13184662. [PMID: 34572889 PMCID: PMC8470766 DOI: 10.3390/cancers13184662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 09/13/2021] [Accepted: 09/15/2021] [Indexed: 11/17/2022] Open
Abstract
Mismatch Repair (MMR) gene dysregulation plays a fundamental role in Lynch Syndrome (LS) pathogenesis, a form of hereditary colorectal cancer. Loss or overexpression of key MMR genes leads to genome instability and tumorigenesis; however, the mechanisms controlling MMR gene expression are unknown. One such gene, MSH2, exerts an important role, not only in MMR, but also in cell proliferation, apoptosis, and cell cycle control. In this study, we explored the functions and underlying molecular mechanisms of increased MSH2 expression related to a c.*226A>G variant in the 3'untranslated (UTR) region of MSH2 that had been previously identified in a subject clinically suspected of LS. Bioinformatics identified a putative binding site for miR-137 in this region. To verify miRNA targeting specificity, we performed luciferase gene reporter assays using a MSH2 3'UTR psiCHECK-2 vector in human SW480 cells over-expressing miR-137, which showed a drastic reduction in luciferase activity (p > 0.0001). This effect was abolished by site-directed mutagenesis of the putative miR-137 seed site. Moreover, in these cells we observed that miR-137 levels were inversely correlated with MSH2 expression levels. These results were confirmed by results in normal and tumoral tissues from the patient carrying the 3'UTR c.*226A>G variant in MSH2. Finally, miR-137 overexpression in SW480 cells significantly suppressed cell proliferation in a time- and dose-dependent manner (p < 0.0001), supporting a role for MSH2 in apoptosis and cell proliferation processes. Our findings suggest miR-137 helps control MSH2 expression via its 3'UTR and that dysregulation of this mechanism appears to promote tumorigenesis in colon cells.
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5
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Tamjidifar R, Akbari M, Tarzi S, Sadeghzadeh M, Abolghasemi M, Poursaei E, Shomali N, Mahdavi F. Prognostic and Diagnostic Values of miR-506 and SPON 1 in Colorectal Cancer with Clinicopathological Considerations. J Gastrointest Cancer 2021; 52:125-129. [PMID: 31927744 DOI: 10.1007/s12029-019-00356-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
PURPOSE One of the most common cancers in the world is colorectal cancer, which has increased significantly in recent decades. In the carcinogenicity process in the colon, there are genes involved in various cellular processes, such as cell cycle, apoptosis, and cell migration. According to studies carried out, both miR-506 and SPON 1 genes are involved in the process which initiates and promotes cancer. In this study, alterations in the expression of target genes from the viewpoint of carcinogenicity were studied and evaluated. METHODS Fifty tumor tissues and normal marginal tissue were collected from patients who were undergoing colorectal cancer surgery. After the extraction of RNA, the real-time PCR method was performed to evaluate the gene expression. Also, alterations of gene expression in response to defined amounts of chemotherapeutic drugs (IC50) were evaluated. P < 0.05 was considered statistically significant. RESULTS The relative expression level of miR-506 in tumor tissues was significantly decreased in comparison with healthy marginal tissues (P = 0.044). On the other hand, the SPON1 gene expression level was decreased too in tumor tissues in comparison with healthy marginal tissues (P = 0.019). There was also a significant relationship between the expression of target genes and clinicopathological involvement. However, there was no significant alteration in these genes along with the chemotherapeutic drug. CONCLUSION These findings suggest that the relative expression of miR-506 and SPON 1 gene can be considered as a diagnostic or predictive biomarker for colorectal cancer. However, further studies on protein levels should be conducted.
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Affiliation(s)
- Rozita Tamjidifar
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Biology Ahar Branch, Islamic Azad University, Ahar, Iran
| | - Morteza Akbari
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Saeed Tarzi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Biology Ahar Branch, Islamic Azad University, Ahar, Iran
| | - Mahsa Sadeghzadeh
- Tuberculosis and Lung Disease Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mahsa Abolghasemi
- Tuberculosis and Lung Disease Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Elham Poursaei
- Tuberculosis and Lung Disease Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Navid Shomali
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Farshad Mahdavi
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran. .,Department of General Surgery, Tabriz University of Medical Sciences, Tabriz, Iran.
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6
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Sabarimurugan S, Madhav MR, Kumarasamy C, Gupta A, Baxi S, Krishnan S, Jayaraj R. Prognostic Value of MicroRNAs in Stage II Colorectal Cancer Patients: A Systematic Review and Meta-Analysis. Mol Diagn Ther 2021; 24:15-30. [PMID: 32020560 DOI: 10.1007/s40291-019-00440-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND We performed a systematic review and meta-analysis to identify and underline multiple microRNAs (miRNAs) as biomarkers of disease prognosis in stage II colorectal cancer (CRC) patients. METHODS AND ANALYSIS This systematic review and meta-analysis study was conducted according to Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. The required articles were collected from online bibliographic databases from January 2011 to November 2019 with multiple permutation keywords. Quantitative data synthesis was based on a meta-analysis with pooled data to observe and analyse the outcome measures and effect estimates by using the random effect model. The subgroup analysis was performed from demographic characteristics and the available data. RESULTS Eighteen articles were included in this study, 16 of which were incorporated for meta-analysis to examine the stage II CRC prognosis with up- and downregulated miRNA expressions. The pooled hazard ratio (HR) for death in stage II CRC patients was 1.90 (95% confidence interval 1.63-2.211), with a significant p value. A subgroup analysis based on up- or downregulated miRNA expression individually and any deregulated miRNA was also associated with a worse prognosis. The subgroup analysis included parameters such as age, gender, stage II and III combined patients' survival and the repetitive miRNAs (miR21, miR215, miR143-5p, miR106a and miR145) individually. CONCLUSION MicroRNAs play a significant role in determining prognosis in stage II CRC patients, with upregulation of miR21, miR215, miR143-5p and miR106a, in particular, portending a worse prognosis. These miRNAs could be considered for further evaluation as biomarkers of prognosis and to guide the decision to administer adjuvant chemotherapy.
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Affiliation(s)
| | | | - Chellan Kumarasamy
- University of Adelaide, North Terrace Campus, Adelaide, SA, 5005, Australia
| | - Ajay Gupta
- American Oncology Institute, Nagpur, India
| | | | - Sunil Krishnan
- Department of Radiation Oncology, The University of Texas, Houston, TX, USA
| | - Rama Jayaraj
- College of Health and Human Sciences, Charles Darwin University, Ellengowan Drive, Darwin, NT, 0810, Australia.
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7
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Wu Z, Li Y, Zhang Y, Hu H, Wu T, Liu S, Chen W, Xie S, Lu Z. Colorectal Cancer Screening Methods and Molecular Markers for Early Detection. Technol Cancer Res Treat 2020; 19:1533033820980426. [PMID: 33353503 PMCID: PMC7768867 DOI: 10.1177/1533033820980426] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Colorectal cancer (CRC) is one of the most common malignant tumors in the digestive tract in humans. The development of colorectal cancer is composed of multiple stages, starting with benign adenomatous polyps in the inner wall of the large intestine and rectum, and then gradually developing. Then it developed into advanced adenomas carcinoma in situ and invasive carcinoma. Represents the distant metastasis of the most advanced development. The purpose of this review is to novel routine screening and diagnostic methods (e.g., Endoscopy and CT colonoscopy, SEPT9 methylation assay, Fecal test) and find reliable molecular markers for early diagnosis of CRC.
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Affiliation(s)
- Ziwei Wu
- Department of Medical Laboratory, the Central Hospital of Wuhan, Tongji Medical College, 12443Huazhong University of Science and Technology, Wuhan, China.,School of Laboratory Medicine, Hubei University of Traditional Chinese Medicine, Wuhan, China
| | - You Li
- Department of Medical Laboratory, the Central Hospital of Wuhan, Tongji Medical College, 12443Huazhong University of Science and Technology, Wuhan, China.,School of Laboratory Medicine, Hubei University of Traditional Chinese Medicine, Wuhan, China
| | - Yibin Zhang
- Department of Medical Laboratory, the Central Hospital of Wuhan, Tongji Medical College, 12443Huazhong University of Science and Technology, Wuhan, China.,School of Laboratory Medicine, Hubei University of Traditional Chinese Medicine, Wuhan, China
| | - Hui Hu
- Department of Medical Laboratory, the Central Hospital of Wuhan, Tongji Medical College, 12443Huazhong University of Science and Technology, Wuhan, China
| | - Tangwei Wu
- Department of Medical Laboratory, the Central Hospital of Wuhan, Tongji Medical College, 12443Huazhong University of Science and Technology, Wuhan, China
| | - Shuiyi Liu
- Department of Medical Laboratory, the Central Hospital of Wuhan, Tongji Medical College, 12443Huazhong University of Science and Technology, Wuhan, China.,Cancer Research Institute of Wuhan, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Weiqun Chen
- Cancer Research Institute of Wuhan, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shenggao Xie
- School of Laboratory Medicine, Hubei University of Traditional Chinese Medicine, Wuhan, China
| | - Zhongxin Lu
- Department of Medical Laboratory, the Central Hospital of Wuhan, Tongji Medical College, 12443Huazhong University of Science and Technology, Wuhan, China.,School of Laboratory Medicine, Hubei University of Traditional Chinese Medicine, Wuhan, China.,Cancer Research Institute of Wuhan, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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8
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Moghadamnia F, Ghoraeian P, Minaeian S, Talebi A, Farsi F, Akbari A. MicroRNA Expression and Correlation with mRNA Levels of Colorectal Cancer-Related Genes. J Gastrointest Cancer 2020; 51:271-279. [PMID: 31102171 DOI: 10.1007/s12029-019-00249-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
INTRODUCTION MicroRNAs (miRNAs), as a family of non-coding RNAs, have opened a new window in cancer biology and transcriptome. It has been revealed that miRNAs post-transcriptionally regulate the gene expression and involve in colorectal cancer (CRC) development and progression. Our aim was to examine the differential expression of miRNAs in a CRC and to correlate their expression levels with mRNA levels of CRC-related genes (K-ras, APC, p53). MATERIALS AND METHODS Seventy-two colorectal tumor tissues from patients with newly diagnosed CRC and 72 matched normal adjacent tissues were analyzed. Relative expression of seven CRC-related miRNAs (miR-21, miR-31, miR-20a, miR-133b, and miR-145, miR-135b and let-7g) and three CRC-related genes (K-ras, APC, p53) was detected using the SYBR Green quantitative real-time PCR technique. The correlation between gene expression levels and clinicopathological features was evaluated. RESULTS Our results showed a significant difference between the two groups for the expression level of miR-21, miR-31, miR-145, and miR-20a (P < 0.001). Also, a significant difference between the two groups for the expression level of K-ras was found (P < 0.001). Further analysis revealed an inverse significant correlation between miR-145 and K-ras (R2 = 0.662, P < 0.001), while a positive correlation was observed between miR-21 and K-ras (R2 = 0.732, P < 0.001). CONCLUSION Dysregulation of miRNAs and correlation with molecular signaling pathways designated a biological role for miRNAs in various cellular mechanisms underlying CRC. On the other hand, the pattern of miRNAs expression and its correlation with transcriptional status are helpful to discovery biomarkers and design therapeutics for CRC.
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Affiliation(s)
- Farahnaz Moghadamnia
- Department of Genetics, Tehran Medical Sciences Branch, Islamic Azad University, Tehran, Iran
| | - Pegah Ghoraeian
- Department of Genetics, Tehran Medical Sciences Branch, Islamic Azad University, Tehran, Iran
| | - Sara Minaeian
- Institute of Immunology and Infectious Diseases, Antimicrobial Resistance Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Atefeh Talebi
- Colorectal Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Farnaz Farsi
- Department of Nutrition, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | - Abolfazl Akbari
- Colorectal Research Center, Iran University of Medical Sciences, Tehran, Iran. .,Colorectal Research Center, Rasoul-e- Akram Hospital, Sattarkhan Ave, Niyayesh St, Tehran, Iran.
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Cheng C, Huang Z, Zhou R, An H, Cao G, Ye J, Huang C, Wu D. Numb negatively regulates the epithelial-to-mesenchymal transition in colorectal cancer through the Wnt signaling pathway. Am J Physiol Gastrointest Liver Physiol 2020; 318:G841-G853. [PMID: 32146835 DOI: 10.1152/ajpgi.00178.2019] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Colorectal cancer (CRC) is one of the most common malignant tumors and is associated with a high mortality rate due to the lack of specific biomarkers available for early diagnosis, targeted therapies, and prognostic surveillance. In the present study, we investigated the function of Numb and its underlying mechanism in CRC. Immunohistochemical staining and clinicopathological analysis were used to assess the expression of Numb and its clinical significance in patients with CRC. Quantitative real-time polymerase chain reaction, cell proliferation, Western blot, wound healing, Transwell, and TOP/FOP flash reporter assays were used to investigate the function of Numb and its underlying mechanism in CRC. Numb expression was downregulated and negatively correlated with the depth of invasion, tumor size, metastasis, TNM stage, and epithelial-to-mesenchymal transition (EMT) markers in CRC specimens. Numb negatively regulates the EMT, proliferation, invasion, migration, and the Wnt signaling pathway in vitro, as well as tumor growth and metastasis in vivo. Furthermore, activation of the Wnt signaling pathway by Wnt-3A negated the effect of Numb overexpression, whereas inhibition of the Wnt signaling pathway by IWR-1 impaired the effect of the Numb knockdown on the EMT. We concluded that Numb downregulation is a common event in patients with CRC and is closely correlated with cancer progression and a poor prognosis. Numb functions as a tumor suppressor in CRC, and its tumor suppressor function is mediated by negative regulation of the EMT through the Wnt signaling pathway.NEW & NOTEWORTHY We investigate the function of Numb and its underlying mechanism in colorectal cancer through quantitative real-time polymerase chain reaction, cell proliferation, Western blot, wound healing, Transwell, and TOP/FOP flash reporter assays. We conclude that Numb can negatively regulate the epithelial-to-mesenchymal transition through the Wnt signaling pathway to inhibit the development of colorectal cancer.
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Affiliation(s)
- Chi Cheng
- Department of Gastrointestinal Surgery, Ruian People's Hospital, Ruian, Zhejiang, China
| | - Zhenfeng Huang
- Department of Gastrointestinal Surgery, Ruian People's Hospital, Ruian, Zhejiang, China
| | - Ruiyao Zhou
- Department of Gastrointestinal Surgery, Ruian People's Hospital, Ruian, Zhejiang, China
| | - Huimin An
- Department of Pathology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Zhejiang, China
| | - Gaojian Cao
- Department of Gastrointestinal Surgery, Ruian People's Hospital, Ruian, Zhejiang, China
| | - Jun Ye
- Department of Laboratory Medicine, The Second Affiliated Hospital of Guizhou Medical University, Guizhou, China
| | - Chaolin Huang
- Department of Obstetrics and Gynecology, Chengdu First People's Hospital, Chengdu, Sichuan, China
| | - Daoyi Wu
- Department of Gastrointestinal Surgery, Ruian People's Hospital, Ruian, Zhejiang, China
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10
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Li J, Peng W, Yang P, Chen R, Gu Q, Qian W, Ji D, Wang Q, Zhang Z, Tang J, Sun Y. MicroRNA-1224-5p Inhibits Metastasis and Epithelial-Mesenchymal Transition in Colorectal Cancer by Targeting SP1-Mediated NF-κB Signaling Pathways. Front Oncol 2020; 10:294. [PMID: 32231999 PMCID: PMC7083241 DOI: 10.3389/fonc.2020.00294] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2019] [Accepted: 02/19/2020] [Indexed: 01/12/2023] Open
Abstract
MicroRNAs (miRNAs) are small non-coding RNAs that play pivotal roles in cancer initiation and progression. However, the roles and molecular mechanisms of miRNAs in colorectal cancer (CRC) progression remain unclear. Here, we show that downregulation of miR-1224-5p in CRC is negatively correlated with SP1 expression and metastasis in patients and xenografted mouse models. Gain- and loss-of-function assays reveal that miR-1224-5p suppresses the migration, invasion, and epithelial–mesenchymal transition (EMT) of CRC cells in vitro and in vivo by directly targeting SP1. Moreover, SP1 promotes the phosphorylation of p65, which results in EMT progress in CRC cells. Clinical analysis reveals that miR-1224-5p and SP1 expression are remarkably associated with advanced clinical features and unfavorable prognosis of patients with CRC. Further study confirms that hypoxia accounts for the depletion of miR-1224-5p in CRC. The enhancement of hypoxia during epithelial–mesenchymal transition and metastasis of CRC cells is abolished by miR-1224-5p. Our findings provide the first evidence that miR-1224-5p is a potential therapeutic target and prognostic biomarker for patients with CRC.
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Affiliation(s)
- Jie Li
- The First School of Clinical Medicine, Nanjing Medical University, Nanjing, China.,Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Wen Peng
- The First School of Clinical Medicine, Nanjing Medical University, Nanjing, China.,Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Peng Yang
- The First School of Clinical Medicine, Nanjing Medical University, Nanjing, China.,Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Ranran Chen
- The First School of Clinical Medicine, Nanjing Medical University, Nanjing, China.,Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Qiou Gu
- The First School of Clinical Medicine, Nanjing Medical University, Nanjing, China.,Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Wenwei Qian
- The First School of Clinical Medicine, Nanjing Medical University, Nanjing, China.,Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Dongjian Ji
- The First School of Clinical Medicine, Nanjing Medical University, Nanjing, China.,Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Qingyuan Wang
- The First School of Clinical Medicine, Nanjing Medical University, Nanjing, China.,Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Zhiyuan Zhang
- The First School of Clinical Medicine, Nanjing Medical University, Nanjing, China.,Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Junwei Tang
- The First School of Clinical Medicine, Nanjing Medical University, Nanjing, China.,Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yueming Sun
- The First School of Clinical Medicine, Nanjing Medical University, Nanjing, China.,Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
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11
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Savardashtaki A, Shabaninejad Z, Movahedpour A, Sahebnasagh R, Mirzaei H, Hamblin MR. miRNAs derived from cancer-associated fibroblasts in colorectal cancer. Epigenomics 2019; 11:1627-1645. [PMID: 31702390 PMCID: PMC7132634 DOI: 10.2217/epi-2019-0110] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 09/24/2019] [Indexed: 02/07/2023] Open
Abstract
Currently, the incidence of colorectal cancer (CRC) is increasing across the world. The cancer stroma exerts an impact on the spread, invasion and chemoresistance of CRC. The tumor microenvironment involves a complex interaction between cancer cells and stromal cells, for example, cancer-associated fibroblasts (CAFs). CAFs can promote neoplastic angiogenesis and tumor development in CRC. Mounting evidence suggests that many miRNAs are overexpressed (miR-21, miR-329, miR-181a, miR-199a, miR-382 and miR-215) in CRC CAFs, and these miRNAs can influence the spread, invasiveness and chemoresistance in neighboring tumor cells via paracrine signaling. Herein, we summarize the pathogenic roles of miRNAs and CAFs in CRC. Moreover, for first time, we highlight the miRNAs derived from CRC-associated CAFs and their roles in CRC pathogenesis.
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Affiliation(s)
- Amir Savardashtaki
- Department of Medical Biotechnology, School of Advanced Medical Sciences … Technologies, Shiraz University of Medical Sciences Shiraz, Iran
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Zahra Shabaninejad
- Department of Nanobiotechnology, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Ahmad Movahedpour
- Department of Medical Biotechnology, School of Advanced Medical Sciences … Technologies, Shiraz University of Medical Sciences Shiraz, Iran
- Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Roxana Sahebnasagh
- Department of Molecular Medicine, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Hamed Mirzaei
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
| | - Michael R Hamblin
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, 40 Blossom Street, Boston, MA 02114, USA
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Ardila HJ, Sanabria-Salas MC, Meneses X, Rios R, Huertas-Salgado A, Serrano ML. Circulating miR-141-3p, miR-143-3p and miR-200c-3p are differentially expressed in colorectal cancer and advanced adenomas. Mol Clin Oncol 2019; 11:201-207. [PMID: 31316774 DOI: 10.3892/mco.2019.1876] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Accepted: 04/22/2019] [Indexed: 02/07/2023] Open
Abstract
Colorectal cancer (CRC) is one of the prominent causes of cancer related deaths because, in part, there is not an early, non-invasive, effective detection strategy. Circulating microRNAs (miRNAs) have been proposed as potential non-invasive biomarkers for CRC. In this study, we evaluated the miRNA profile in sixteen CRC tissues by Next-Generation-Sequencing and compared the circulating expression levels of 22 miRNAs among 45 CRC, 14 hyperplastic polyps, 11 advanced adenoma patients and 45 control subjects, by reverse transcription-quantitative PCR, to search for miRNAs which could be potential biomarkers. In total, nine of them represented 70% of total read counts (miR-10a-5p, miR-192-5p, miR-10b-5p, miR-22-3p, miR-26a-5p, miR-148a-3p, miR-181a-5p, miR-92a-3p and miR-143-5p). In silico analysis found eight candidates to mature miRNAs. With respect to circulating miRNA, we found higher serum expression levels of miR-143-3p, miR-141-3p and miR-200c-3p in the CRC and adenoma groups compared with controls (P<0.002), and we also found significant higher levels of miR-141-3p and miR-200c-3p in serum of adenoma patients compared with the CRC group. In conclusion, the measurement of miRNAs in the blood could complement current screening methods for CRC and might provide new insights into mechanisms of tumorigenesis. miR-143-3p, miR-141-3p and miR-200c-3p could be interesting miRNAs to study as potential biomarkers for CRC.
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Affiliation(s)
- Héctor Javier Ardila
- Grupo de Investigación en Biología del Cáncer, Instituto Nacional de Cancerología, Bogotá, Colombia.,Instituto de Genética, Facultad de Medicina, Universidad Nacional de Colombia, Bogotá, Colombia
| | | | - Ximena Meneses
- Unidad de Análisis, Instituto Nacional de Cancerología, Bogotá, Colombia
| | - Rafael Rios
- Unidad de Genética y Resistencia Antimicrobiana, Centro Internacional de Genómica Microbiana, Universidad el Bosque, Bogotá, Colombia
| | | | - Martha Lucía Serrano
- Grupo de Investigación en Biología del Cáncer, Instituto Nacional de Cancerología, Bogotá, Colombia.,Departamento de Química, Facultad de Ciencias, Universidad Nacional de Colombia, Bogotá, Colombia
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Gallegos-Arreola MP, Zúñiga-González GM, Gómez-Mariscal K, Rosales-Reynoso MA, Luis L, Puebla-Pérez AM, Pineda-Razo T. Association of rs712 polymorphism in a let-7 microRNA-binding site of KRAS gene with colorectal cancer in a Mexican population. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES 2019; 22:324-327. [PMID: 31156795 PMCID: PMC6528713 DOI: 10.22038/ijbms.2019.26564.6507] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Accepted: 10/11/2018] [Indexed: 12/15/2022]
Abstract
OBJECTIVES The rs712 polymorphism in a let-7 microRNA-binding site at KRAS gene has been associated with cancer. To examine its association with rs712 polymorphism, we analyzed Mexican individuals with colorectal cancer (CRC) and healthy subjects. MATERIALS AND METHODS Genotyping of the rs712 polymorphism was performed by polymerase chain reaction in 281 controls and 336 CRC patients. RESULTS The observed frequencies of rs712 polymorphism indicated an associated protective factor for CRC (P=0.032). An association between genotype and the disease was evident in: colon localization (allele T, odds ratio (OR) 3.82, 95% confidence Intervals (CI) 2.77-5.28, P=0.0001), node metastasis (genotype TT, OR 2.49, 95% CI 1.45-4.28, P=0.0009), poor differentiation (genotype GT, OR 2.35, 95% CI 1.35-4.1, P=0.0033), and poor chemotherapy response (genotype GT, OR 2.6, 95% CI 1.7-4.24, P=0.0001). CONCLUSION Comparison of the data from patients with control group showed that polymorphism of rs712 in KRAS gene was protective factor, which was associated with susceptibility for CRC. However, the genotypes TT and GT of rs712 polymorphism in KRAS could contribute significantly to colon localization, node metastasis, poor differentiation and poor chemotherapy response in CRC patients in this sample population.
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Affiliation(s)
- Martha Patricia Gallegos-Arreola
- División de Genética, Centro de Investigación Biomédica de Occidente, Instituto Mexicano del Seguro Social, Guadalajara, Jalisco, México
| | - Guillermo Moisés Zúñiga-González
- Medicina Molecular, Centro de Investigación Biomédica de Occidente, Instituto Mexicano del Seguro Social, Guadalajara, Jalisco, Mexico
| | - Karen Gómez-Mariscal
- Medicina Molecular, Centro de Investigación Biomédica de Occidente, Instituto Mexicano del Seguro Social, Guadalajara, Jalisco, Mexico
| | - Mónica Alejandra Rosales-Reynoso
- Medicina Molecular, Centro de Investigación Biomédica de Occidente, Instituto Mexicano del Seguro Social, Guadalajara, Jalisco, Mexico
| | - Luis Luis
- División de Genética, Centro de Investigación Biomédica de Occidente, Instituto Mexicano del Seguro Social, Guadalajara, Jalisco, México
| | - Ana María Puebla-Pérez
- Laboratorio de Inmunofarmacología, Centro Universitario de Ciencias Exactas e Ingenierías, Universidad de Guadalajara, Guadalajara, Jalisco, Mexico
| | - Tomas Pineda-Razo
- Servicio de Oncología, Unidad Médica de Alta Especialidad, Hospital de Especialidades, Centro Médico Nacional de Occidente, Instituto Mexicano del Seguro Social, Guadalajara, Jalisco, Mexico
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Dong M, Xie Y, Xu Y. miR-7-5p regulates the proliferation and migration of colorectal cancer cells by negatively regulating the expression of Krüppel-like factor 4. Oncol Lett 2019; 17:3241-3246. [PMID: 30867755 PMCID: PMC6396112 DOI: 10.3892/ol.2019.10001] [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: 03/04/2018] [Accepted: 01/10/2019] [Indexed: 12/13/2022] Open
Abstract
Previous studies have demonstrated that microRNA-7-5p (miR-7-5p) functions as a tumor suppressor in certain types of human cancer. However, the role of miR-7-5p in colorectal cancer (CRC) remains to be investigated. Using reverse transcription-quantitative polymerase chain reaction (RT-qPCR), the present study demonstrated that miR-7-5p was downregulated in CRC tissues and cell lines. In addition, low miR-7-5p expression is able to predict a poor 5-year overall survival rate for patients with CRC. In vitro studies revealed that miR-7-5p overexpression inhibits cell proliferation and migration. Furthermore, Krüppel-like factor 4 (KLF4), an oncogene in CRC, was validated as a direct target of miR-7-5p. KLF4 expression was negatively correlated with miR-7-5p expression in CRC tissues. Notably, KLF4 overexpression rescued the suppressive effects of miR-7-5p on CRC cell proliferation and migration. In summary, the results of this study demonstrated that miR-7-5p inhibits CRC proliferation and migration by targeting KLF4, which suggests that miR-7-5p is a potential molecular target for the treatment of human CRC.
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Affiliation(s)
- Mingjun Dong
- Department of Anorectal Surgery, The No. 2 Hospital of Ningbo, Ningbo, Zhejiang 315010, P.R. China
| | - Yangyang Xie
- Department of Anorectal Surgery, The No. 2 Hospital of Ningbo, Ningbo, Zhejiang 315010, P.R. China
| | - Yidong Xu
- Department of Anorectal Surgery, The No. 2 Hospital of Ningbo, Ningbo, Zhejiang 315010, P.R. China
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Dkk-3 as a potential biomarker for diagnosis and prognosis of colorectal cancer. Med J Islam Repub Iran 2018; 32:86. [PMID: 30788323 PMCID: PMC6377052 DOI: 10.14196/mjiri.32.86] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2017] [Indexed: 01/05/2023] Open
Abstract
Background: The Dickkopf 3 (Dkk-3) protein is a member of the Dkk family known as Wnt signaling inhibitor. The level of DKk-3 changes in a wide range of cancers, such as colorectal cancer, lung cancer, prostate cancer, and bladder cancer, is proposed as a biomarker for diagnosis and prognosis of many cancers. The present study was conducted to evaluate the serum level of Dkk-3 as a cancer biomarker and to determine their prognostic value in colorectal cancer (CRC) patients and healthy matched controls.
Methods: A total of 30 colorectal cancer patients at different stages of the disease and healthy matched controls with no history of inflammatory and autoimmune disease or cancer were enrolled in the study. The level of Dkk-3 was assessed serologically using enzymelinked immunosorbent assay (ELISA) method, moreover, relevance of these markers with patients’ clinicopathological features was subsequently assessed. Means comparison and ROC curves analysis were done using SPSS software. P-value ˂0.05 was considered significant in all the tests.
Results: In this study, it was revealed that serum level of Dkk-3 was significantly (p<0.001) lower in patients compared to the healthy controls. Statistical analysis showed that serum level of Dkk-3 has 78% specificity and 77% sensitivity (AUC= 0.782, 95% CI) for diagnosis of colorectal cancer.
Conclusion: Dkk-3 protein can be considered as a potential biomarker for diagnosis and possibly the prognosis of colorectal cancer.
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Zhang P, Zhang M, Han R, Zhang K, Ding H, Liang C, Zhang L. The correlation between microRNA-221/222 cluster overexpression and malignancy: an updated meta-analysis including 2693 patients. Cancer Manag Res 2018; 10:3371-3381. [PMID: 30237739 PMCID: PMC6138959 DOI: 10.2147/cmar.s171303] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Background Although miR-221/222 cluster plays an important role in many human malignancies, the correlation between miR-221/222 cluster overexpression and tumor prognosis remains controversial. Therefore, an updated meta-analysis was conducted to clarify its prognostic value in malignancy. Methods We conducted a search of literature in English electronic databases of PubMed, Embase, and Cochrane Library, and Chinese electronic databases of China Biology Medicine disc and China National Knowledge Infrastructure to obtain appropriate studies. Besides, we extracted hazard ratios (HRs) and 95% CIs to evaluate the strength of the correlations. In addition, the results of different subgroups analyses and publication bias test were also shown in this article. Results 32 publications, including 15 tumor types and 2,693 patients were embraced in this meta-analysis. The results of univariate (HR =1.69, 95% CI: 1.18-2.44, P<0.01) and multivariate (HR =2.10, 95% CI: 1.63-2.69, P<0.01) analyses revealed that miR-221/222 cluster high expression in various tumors was significantly associated with adverse overall survival (OS). Correspondingly, we also found subgroups analyses consisted of country, miR-221/222 cluster component, sample size, and test method have similar results. Conclusion miR-221/222 cluster overexpression was closely related to adverse OS in human carcinoma, while overexpression of miRNA-221/222 cluster could be viewed as a protection factor in prostate cancer. Blood-derived miR-221/222 cluster was not proper to assess OS.
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Affiliation(s)
- Pengfei Zhang
- Department of Urology, The First Affiliated Hospital of Anhui Medical University and Institute of Urology, Anhui Medical University, Hefei, China, ,
| | - Meng Zhang
- Department of Urology, The First Affiliated Hospital of Anhui Medical University and Institute of Urology, Anhui Medical University, Hefei, China, ,
| | - Renfang Han
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, China
| | - Kaiping Zhang
- Department of Urology, Anhui Provincial Children's Hospital, Hefei, China
| | - Huayang Ding
- Department of Urology, The First Affiliated Hospital of Anhui Medical University and Institute of Urology, Anhui Medical University, Hefei, China, ,
| | - Chaozhao Liang
- Department of Urology, The First Affiliated Hospital of Anhui Medical University and Institute of Urology, Anhui Medical University, Hefei, China, ,
| | - Li Zhang
- Department of Urology, The First Affiliated Hospital of Anhui Medical University and Institute of Urology, Anhui Medical University, Hefei, China, ,
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Hasáková K, Bezakova J, Vician M, Reis R, Zeman M, Herichova I. Gender-dependent expression of leading and passenger strand of miR-21 and miR-16 in human colorectal cancer and adjacent colonic tissues. Physiol Res 2018; 66:S575-S582. [PMID: 29355387 DOI: 10.33549/physiolres.933808] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
miRNAs are small regulatory RNA molecules involved in posttranscriptional gene silencing. Their biosynthesis results in the formation of duplex consisting of a leading and a passenger strand of mature miRNA. The leading strand exhibits the main activity but recent findings indicate a certain role of the passenger strand as well. Deregulated levels of miRNA were found in many types of cancers including colorectal cancer. miR-21 and miR-16 were indicated as possible markers of colorectal cancer, however, small attention to gender differences in their expression was paid so far. Therefore, the aim of our study was to investigate the expression of miR-21-5p, miR-21-3p, miR-16-5p and miR-16-3p in human colorectal cancer tissue and compare it to the adjacent tissues taken during surgery in men and women separately. Our results showed an up-regulation of all measured miRNAs in tumor tissue compared to adjacent tissues. As expected, tumors and adjacent tissues exhibited a significantly higher expression of leading miRNAs compared to passenger strand of miR-21 and miR-16. The expression of leading and passenger strand of miR-21 and miR-16 positively correlated exhibiting the highest correlation coefficient in the distal tissue. The expression pattern showed gender-dependent differences, with higher levels of miRNA in men than in women. Our findings indicate a gender-related expression pattern of miRNA, which should be considered as an important factor in generating new prognostic or diagnostic biomarkers.
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Affiliation(s)
- K Hasáková
- Department of Animal Physiology and Ethology, Faculty of Natural Sciences, Comenius University Bratislava, Bratislava, Slovak Republic.
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Sun Y, Wang Y, Yang H, Xu Y, Yu H. miR-455-3p functions as a tumor suppressor in colorectal cancer and inhibits cell proliferation by targeting TPT1. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2018; 11:2522-2529. [PMID: 31938365 PMCID: PMC6958251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Accepted: 03/23/2018] [Indexed: 06/10/2023]
Abstract
Increasing studies have revealed the importance of microRNAs (miRNAs) in tumorigenesis and tumor progression. miR-455-3p is a newly identified tumor suppressive RNA in various human cancers. However, the expression pattern and clinical significance of miR-455-3p in colorectal cancer (CRC) remains unclear. We found that expression of miR-455-3p was significantly reduced in CRC tissues and cell lines. In addition, we show that low miR-455-3p expression is associated with larger tumor size, advanced tumor stage, and poorer overall survival of CRC patients. Furthermore, in vitro experiments revealed that overexpression of miR-455-3p represses cell proliferation. Importantly, we show that the tumor protein translationally controlled 1 (TPT1) is a direct target of miR-455-3p. Moreover, expression of TPT1 was inversely correlated with the expression of miR-455-3p. Loss-of-function of TPT1 had a similar effect on CRC cell proliferation in vitro as gain-of-function of miR-455-3p. Taken together, these data suggest that miR-455-3p functions as tumor suppressive RNA by targeting TPT1 in CRC, and it might be a potential therapeutic target for CRC patients.
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Affiliation(s)
- Yuanyuan Sun
- Department of Medical Oncology, Capital Medical University Cancer Center, Beijing Shijitan Hospital, Beijing Key Lab of Therapeutic Cancer VaccinesBeijing, P. R. China
| | - Yan Wang
- Department of Interventional Therapy, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy for TianjinTianjin, P. R. China
| | - Hainan Yang
- Department of Medical Oncology, The Ninth Teaching Hospital of Peking University Health Science Center, Beijing Shijitan Hospital, Beijing Key Lab of Therapeutic Cancer VaccinesBeijing, P. R. China
| | - Yan Xu
- Department of Interventional Therapy, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy for TianjinTianjin, P. R. China
| | - Haipeng Yu
- Department of Interventional Therapy, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy for TianjinTianjin, P. R. China
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miR-15a-5p, A Novel Prognostic Biomarker, Predicting Recurrent Colorectal Adenocarcinoma. Mol Diagn Ther 2018; 21:453-464. [PMID: 28405803 DOI: 10.1007/s40291-017-0270-3] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
INTRODUCTION Colorectal cancer is one of the most common gastrointestinal diseases and the second leading cause of cancer-associated deaths among adults. miR-15a-5p is a post-transcriptional regulator of the proto-oncogene MYB, a transcription factor essential for prolonged cancer cell proliferation and survival. In the current study, we assessed the potential diagnostic and prognostic utility of miR-15a-5p expression in colorectal adenocarcinoma. METHODS To accomplish this goal, total RNA was extracted from 182 colorectal adenocarcinoma specimens and 86 non-cancerous colorectal mucosae. After polyadenylation by poly(A) polymerase and subsequent reverse transcription with an oligo-dT adapter primer, miR-15a-5p expression was analyzed using an in-house developed reverse transcription quantitative real-time PCR method, based on SYBR Green chemistry. SNORD43 (RNU43) was used as an internal control gene. RESULTS miR-15a-5p was significantly upregulated in colorectal tumors compared to non-cancerous colorectal mucosae, while ROC analysis suggested its potential use for diagnostic purposes. Moreover, miR-15a-5p overexpression predicts poor disease-free survival (DFS) and overall survival (OS). Multivariate Cox regression analysis confirmed that miR-15a-5p overexpression is a significant unfavorable prognosticator of DFS in colorectal adenocarcinoma, independent of other established prognostic factors plus treatment of patients. Importantly, miR-15a-5p overexpression retains its unfavorable prognostic value in patients with T3 colorectal adenocarcinoma and in those without distant metastasis (M0). More importantly, the cumulative DFS probability of patients with early stage disease was significantly lower for those with colorectal adenocarcinoma overexpressing miR-15a-5p. DISCUSSION In conclusion, elevated expression of the cancer-associated miR-15a-5p predicts poor DFS and OS of colorectal adenocarcinoma patients. The prognostic value of miR-15a-5p expression regarding DFS is independent of clinicopathological factors currently used for colorectal adenocarcinoma prognosis.
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Shan W, Sun C, Zhou B, Guo E, Lu H, Xia M, Li K, Weng D, Lin X, Meng L, Ma D, Chen G. Role of Dicer as a prognostic predictor for survival in cancer patients: a systematic review with a meta-analysis. Oncotarget 2018; 7:72672-72684. [PMID: 27682871 PMCID: PMC5341936 DOI: 10.18632/oncotarget.12183] [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: 11/28/2015] [Accepted: 09/12/2016] [Indexed: 01/17/2023] Open
Abstract
Objective The role of Dicer in the prognosis of cancer patients remains controversial. This systematic review is attempted to assess the influence of Dicer as a prognostic predictor for survival in diverse types of cancers. Methods Studies were selected as candidates if they published an independent evaluation of Dicer expression level together with the correlation with prognosis in cancers. Random-effect model was applied in this meta-analysis. Heterogeneity between studies was assessed by Q-statistic with P < 0.10 to be statistically significant. Publication bias was investigated using funnel plot and test with Begg's and Egger's test. P < 0.05 was regarded as statistically significant. Results 24 of 44 articles revealed low Dicer status as a predictor of poor prognosis. The aggregate result of overall survival (OS) indicated that low Dicer expression level resulted in poor clinical outcomes, and subgroup of IHC and RT-PCR method both revealed the same result. Overall analysis of progression-free survival (PFS) showed the same result as OS, and both the two subgroups divided by laboratory method revealed positive results. Subgroup analysis by tumor types showed low dicer levels were associated with poor prognosis in ovarian cancer (HR = 1.93, 95% CI: 1.19-3.15), otorhinolaryngological tumors (HR = 2.39, 95% CI: 1.70-3.36), hematological malignancies (HR = 2.45, 95% CI: 1.69-3.56) and neuroblastoma (HR = 4.03, 95% CI: 1.91-8.50). Conclusion Low Dicer status was associated with poor prognosis in ovarian cancer, otorhinolaryngological tumors and ematological malignancies. More homogeneous studies with high quality are needed to further confirm our conclusion and make Dicer a useful parameter in clinical application.
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Affiliation(s)
- Wanying Shan
- Cancer Biology Medical Centre, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, P.R.China
| | - Chaoyang Sun
- Cancer Biology Medical Centre, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, P.R.China
| | - Bo Zhou
- Cancer Biology Medical Centre, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, P.R.China
| | - Ensong Guo
- Cancer Biology Medical Centre, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, P.R.China
| | - Hao Lu
- Cancer Biology Medical Centre, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, P.R.China
| | - Meng Xia
- Cancer Biology Medical Centre, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, P.R.China
| | - Kezhen Li
- Cancer Biology Medical Centre, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, P.R.China
| | - Danhui Weng
- Cancer Biology Medical Centre, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, P.R.China
| | - Xingguang Lin
- Cancer Biology Medical Centre, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, P.R.China
| | - Li Meng
- Cancer Biology Medical Centre, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, P.R.China
| | - Ding Ma
- Cancer Biology Medical Centre, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, P.R.China
| | - Gang Chen
- Cancer Biology Medical Centre, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, P.R.China
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Lu W, Hu Y, Ma Q, Zhou L, Jiang L, Li Z, Zhao S, Xu Y, Shi W, Li S, Liu Y. miR-223 increases gallbladder cancer cell sensitivity to docetaxel by downregulating STMN1. Oncotarget 2018; 7:62364-62376. [PMID: 27577078 PMCID: PMC5308733 DOI: 10.18632/oncotarget.11634] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Accepted: 08/23/2016] [Indexed: 01/23/2023] Open
Abstract
Background MicroRNAs (miRs) are involved in cancer carcinogenesis, and certain regulatory miRs could provide promising therapeutic methods for refractory malignancies, such as gallbladder cancer (GBC). miR-223 was found to play a pivotal role in enhancing chemotherapeutic effects, therefore evoking interest in the role of miR-223 in GBC. Results miR-223 was decreased in GBC tissues and cell lines, and ectopic miR- 223 expression exhibited multiple anti-tumorigenic effects in GBC cells, including decreased proliferation, migration and invasion in vitro. However, treatment with a miR-223 inhibitor increased cell viability. We determined that STMN1 was negatively correlated with and regulated by miR-223 in GBC. miR-223 increased GBC sensitivity to docetaxel in vitro and in vivo, and the induced sensitivity to docetaxel was suppressed by the restoration of STMN1 expression. Methods We examined miR-223 expression in GBC tissue and GBC cell lines using qRT-PCR. The effects of modulated miR-223 expression in GBC cells were assayed using Cell Counting Kit-8 (CCK8), flow cytometry, and wound-healing and invasion assays. Susceptibility to docetaxel was evaluated in miR-223/STMN1-modulated GBC cells and xenograft tumor models. The protein expression of relevant genes was examined by Western blotting. Conclusions These findings indicated that miR-223 might serve as an onco-suppressor that enhances susceptibility to docetaxel by downregulating STMN1 in GBC, highlighting its promising therapeutic value.
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Affiliation(s)
- Wei Lu
- Department of General Surgery, Xinhua Hospital, Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai, China.,Institute of Biliary Tract Diseases Research, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yunping Hu
- Institute of Biliary Tract Diseases Research, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qiang Ma
- Institute of Biliary Tract Diseases Research, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Linzhu Zhou
- Institute of Chemistry, Shanghai Jiao Tong University, Shanghai, China
| | - Lin Jiang
- Institute of Biliary Tract Diseases Research, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhizhen Li
- Institute of Biliary Tract Diseases Research, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Shuai Zhao
- Institute of Biliary Tract Diseases Research, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yuzhen Xu
- Department of Gastrointestinal Surgery, Xu Zhou Center Hospital, Affiliated to Medical College of Southeast University, Jiangsu, China
| | - Weibin Shi
- Department of General Surgery, Xinhua Hospital, Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Sheng Li
- Department of Biochemistry, Dalian Medical University, Liaoning, China
| | - Yingbin Liu
- Department of General Surgery, Xinhua Hospital, Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai, China.,Institute of Biliary Tract Diseases Research, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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22
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Chen Y, Song W. Wnt/catenin β1/microRNA 183 predicts recurrence and prognosis of patients with colorectal cancer. Oncol Lett 2018. [PMID: 29541213 DOI: 10.3892/ol.2018.7886] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
The present study assessed the association between the Wnt/catenin β1 (CTNNB1)/microRNA (miR)183 signaling pathway and the recurrence and prognosis of colorectal cancer. The expression of Wnt, CTNNB1 and miR183 in primary colorectal cancer tissue was increased compared with that in the paracarcinoma tissue. Disease-free survival and overall survival were decreased in patients with colorectal cancer and increased miR183 expression compared with those in patients with colorectal cancer and decreased miR183 expression. The human colorectal cancer cell line HCT-116 was treated with 5 µM inhibitor of Wnt response (IWR-2) for 24 h to inhibit Wnt protein expression. Downregulating Wnt and CTNNB1 expression inhibited the viability of, and induced cell death and caspase 3 protein expression in, HCT-116 cells. The expression of BCL2 associated X protein and miR183 was increased, and cyclin D1 protein expression was suppressed, by the downregulation of Wnt and CTNNB1 expression in HCT-116 cells. Collectively, the results of the present study suggested that the Wnt/CTNNB1/miR183 signaling pathway may represent a promising biomarker for the recurrence and prognosis of colorectal cancer.
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Affiliation(s)
- Yuzhuo Chen
- Department of Surgery, Tianjin Third Central Hospital, Tianjin 300170, P.R. China
| | - Weiliang Song
- Department of Surgery, Tianjin Third Central Hospital, Tianjin 300170, P.R. China
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23
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Wan Y, Shen A, Qi F, Chu J, Cai Q, Sferra TJ, Peng J, Chen Y. Pien Tze Huang inhibits the proliferation of colorectal cancer cells by increasing the expression of miR-34c-5p. Exp Ther Med 2017; 14:3901-3907. [PMID: 29042999 DOI: 10.3892/etm.2017.4972] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2015] [Accepted: 05/05/2016] [Indexed: 12/11/2022] Open
Abstract
MicroRNAs (miRNAs) are small, short endogenous non-coding RNA that act as oncogenes or tumor suppressors, and serve an important role in various human malignant cancers, including colorectal cancer (CRC). Evidence has indicated that miRNAs regulate the expression of various genes associated with human cancer, in particular the miR-34 family. A well-known traditional Chinese formula, Pien Tze Huang (PZH), has a significant clinical effect on CRC. Previous studies have demonstrated that PZH inhibits CRC growth in vitro and in vivo via multiple mechanisms, including the induction of apoptosis, inhibition of cell proliferation and tumor angiogenesis. To further elucidate the molecular mechanisms underlying the antitumor activity of PZH, in the present study its effects on cell proliferation and miRNA expression in human colon carcinoma (HCT)-8 cell lines was examined. It was observed that treatment with PZH inhibited cell viability and upregulated the expression of miR-34c-5p in HCT-8 cells. In addition, transfection with an miR-34c-5p mimic and treatment with PZH inhibited cell survival and arrested the cell cycle between the G0/G1 and S phase in HCT-8 cells. Furthermore, PZH treatment and transfection with miR-34c-5p downregulated the expression of cyclin-dependent kinase 4 and cMyc (a promoter of cell proliferation), and increased the expression of p53, which is a promoter of apoptosis. These results suggest that PZH may suppress proliferation in CRC cells by upregulating the expression of miR-34c-5p, which provides a novel perspective for understanding the mode of action of PZH.
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Affiliation(s)
- Yun Wan
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, P.R. China.,Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, P.R. China
| | - Aling Shen
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, P.R. China.,Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, P.R. China
| | - Fei Qi
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, P.R. China.,Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, P.R. China
| | - Jianfeng Chu
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, P.R. China.,Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, P.R. China
| | - Qiaoyan Cai
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, P.R. China.,Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, P.R. China
| | - Thomas Joseph Sferra
- Rainbow Babies & Children's Hospital, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA
| | - Jun Peng
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, P.R. China.,Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, P.R. China.,Postdoctoral Workstation, Zhangzhou Pien Tze Huang Pharmaceutical Co., Ltd., Zhangzhou, Fujian 363000, P.R. China
| | - Youqin Chen
- Rainbow Babies & Children's Hospital, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA
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24
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Cao J, Yan XR, Liu T, Han XB, Yu JJ, Liu SH, Wang LB. MicroRNA-552 promotes tumor cell proliferation and migration by directly targeting DACH1 via the Wnt/β-catenin signaling pathway in colorectal cancer. Oncol Lett 2017; 14:3795-3802. [PMID: 28927149 DOI: 10.3892/ol.2017.6600] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Accepted: 01/31/2017] [Indexed: 12/18/2022] Open
Abstract
The purpose of the present study was to analyze the crucial role of microRNAs (miRNAs/miRs) involved in the proliferation and migration of colorectal cancer (CRC) and to investigate their underlying mechanisms. The present study discusses the expression and function of miR-552 in CRC. The expression level of miR-552 in CRC cells and tissues was observed, and it was suggested that the high expression of miR-552 accelerated the proliferation and migration of CRC cells in vitro. Notably, a result of the present study was that the cell fate determination factor Dachshund family transcription factor 1 (DACH1) was identified as a direct target of miR-552. Suppressing miR-552 expression in CRC cells increased endogenous DACH1 mRNA and protein levels, which was negatively correlated with miR-552. DACH1 performs an important role in the development of a number of neoplasms, and has the ability to regulate the Wnt/β-catenin signaling pathway as a novel predictive and diagnostic biomarker. Accordingly, it was concluded that miR-552 exerted a tumor-promoting role in CRC development by targeting DACH1, which may contribute to the increase in the rates of CRC proliferation and migration. miR-552 may serve as a potential diagnostic and prognostic biomarker for CRC.
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Affiliation(s)
- Jia Cao
- Department of Medical Laboratory, Ningxia Medical University, Clinical Medicine College, Yinchuan, Ningxia 750004, P.R. China
| | - Xiu-Rui Yan
- Stem Cell Institute, The General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China
| | - Ting Liu
- Stem Cell Institute, The General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China
| | - Xue-Bo Han
- Department of Medical Laboratory, Ningxia Medical University, Clinical Medicine College, Yinchuan, Ningxia 750004, P.R. China
| | - Jing-Jing Yu
- Stem Cell Institute, The General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China.,National Engineering Research Center of Beijing Biochip Technology, Sub-Center in Ningxia, Yinchuan, Ningxia 750004, P.R. China
| | - Shi-Hai Liu
- Central Laboratory, The Affiliated Hospital of Qingdao University, Animal Experimental Center, Qingdao, Shandong 266003, P.R. China
| | - Li-Bin Wang
- Department of Medical Laboratory, Ningxia Medical University, Clinical Medicine College, Yinchuan, Ningxia 750004, P.R. China.,Stem Cell Institute, The General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China.,National Engineering Research Center of Beijing Biochip Technology, Sub-Center in Ningxia, Yinchuan, Ningxia 750004, P.R. China
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25
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Integrated host and viral transcriptome analyses reveal pathology and inflammatory response mechanisms to ALV-J injection in SPF chickens. Sci Rep 2017; 7:46156. [PMID: 28401895 PMCID: PMC5388866 DOI: 10.1038/srep46156] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Accepted: 03/09/2017] [Indexed: 12/31/2022] Open
Abstract
Avian leukosis virus (ALV) is detrimental to poultry health and causes substantial economic losses from mortality and decreased performance. Because tumorigenesis is a complex mechanism, the regulatory architecture of the immune system is likely to include the added dimensions of modulation by miRNAs and long-noncoding RNA (lncRNA). To characterize the response to ALV challenge, we developed a novel methodology that combines four datasets: mRNA expression and the associated regulatory factors of miRNA and lncRNA, and ALV gene expression. Specific Pathogen-Free (SPF) layer chickens were infected with ALV-J or maintained as non-injected controls. Spleen samples were collected at 40 days post injection (dpi), and sequenced. There were 864 genes, 7 miRNAs and 17 lncRNAs differentially expressed between infected and non-infected birds. The combined analysis of the 4 RNA expression datasets revealed that ALV infection is detected by pattern-recognition receptors (TLR9 and TLR3) leading to a type-I IFN mediated innate immune response that is modulated by IRF7 and IRF1. Co-expression network analysis of mRNA with miRNA, lncRNA and virus genes identified key elements within the complex networks utilized during ALV response. The integration of information from the host transcriptomic, epigenetic and virus response also has the potential to provide deeper insights into other host-pathogen interactions.
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26
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Novel Implications in Molecular Diagnosis of Lynch Syndrome. Gastroenterol Res Pract 2017; 2017:2595098. [PMID: 28250766 PMCID: PMC5303590 DOI: 10.1155/2017/2595098] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Accepted: 01/05/2017] [Indexed: 02/07/2023] Open
Abstract
About 10% of total colorectal cancers are associated with known Mendelian inheritance, as Familial Adenomatous Polyposis (FAP) and Lynch syndrome (LS). In these cancer types the clinical manifestations of disease are due to mutations in high-risk alleles, with a penetrance at least of 70%. The LS is associated with germline mutations in the DNA mismatch repair (MMR) genes. However, the mutation detection analysis of these genes does not always provide informative results for genetic counseling of LS patients. Very often, the molecular analysis reveals the presence of variants of unknown significance (VUSs) whose interpretation is not easy and requires the combination of different analytical strategies to get a proper assessment of their pathogenicity. In some cases, these VUSs may make a more substantial overall contribution to cancer risk than the well-assessed severe Mendelian variants. Moreover, it could also be possible that the simultaneous presence of these genetic variants in several MMR genes that behave as low risk alleles might contribute in a cooperative manner to increase the risk of hereditary cancer. In this paper, through a review of the recent literature, we have speculated a novel inheritance model in the Lynch syndrome; this could pave the way toward new diagnostic perspectives.
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27
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Tan W, Song ZZ, Xu Q, Qu X, Li Z, Wang Y, Yu Q, Wang S. Up-Regulated Expression of SPRY4-IT1 Predicts Poor Prognosis in Colorectal Cancer. Med Sci Monit 2017; 23:309-314. [PMID: 28099409 PMCID: PMC5267619 DOI: 10.12659/msm.898369] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Background Long non-coding RNA SPRY4 intronic transcript 1 (lncRNA SPRY4-IT1) has been reported to be associated with the progression of several cancers, but its expression level in colorectal cancer (CRC) has rarely been reported. The purpose of this study was to estimate the clinical significance of SPRY4-IT1 in CRC. Material/Methods The relative expression levels of SPRY4-IT1 were detected by quantitative real-time polymerase chain reaction (qRT-PCR) in diseased tissues and the adjacent normal tissues of 106 CRC patients. Chi-square method was used to evaluate the association between SPRY4-IT1 expression and the clinical features. Additionally, we assessed the overall survival at different expression levels of SPRY4-IT1 using Kaplan-Meier method. The prognostic significance of SPRY4-IT1 was estimated by Cox regression analysis. Results Up-regulated level of SPRY4-IT1 was detected in pathologic tissues of CRC patients compared with adjacent normal tissues (P=0.000). The relative expression of SPRY4-IT1 was associated with the tumor size, the depth of invasion, lymph node invasion, distant invasion, and tumor stage (P<0.05). Patients with high expression of SPRY4-IT1 had poor overall survival compared with those with high level (39.3 vs. 49.3 months, log-rank test, P=0.016). Cox regression analysis showed that SPRY4-IT1 could act as an independent prognostic factor in CRC (HR=2.341, 95% CI=1.136–4.826, P=0.021). Conclusions SPRY4-IT1 might be associated with tumorigenesis and progression of CRC, and it may be a promising biomarker for prognosis in patients with CRC.
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Affiliation(s)
- Wenlong Tan
- Department of Biotechnology, Beijing Institute of Radiation Medicine, Beijing, China (mainland)
| | - Zi-Zheng Song
- II Department of Medical Oncology, PLA General Hospital, Beijing , China (mainland).,Department of Medical Oncology, Affiliated Hospital of Hebei University, Baoding, Hebei, China (mainland)
| | - Qunfang Xu
- Clinical Laboratory, Beijing Electric Power Hospital of Capital Medical University, Beijing, China (mainland)
| | - Xinyan Qu
- Department of Biotechnology, Beijing Institute of Radiation Medicine, Beijing, China (mainland)
| | - Zhen Li
- Department of Biotechnology, Beijing Institute of Radiation Medicine, Beijing, China (mainland)
| | - Yu Wang
- Clinical laboratory, Beijing Electric Power Hospital of Capital Medical University, Beijing, China (mainland)
| | - Qun Yu
- Department of Blood Products and Substitutes, Beijing Institute of Transfusion Medicine, Beijing, China (mainland)
| | - Shengqi Wang
- Department of Biotechnology, Beijing Institute of Radiation Medicine, Beijing, China (mainland)
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28
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Li B, Xie Z, Li Z, Chen S, Li B. MicroRNA-613 targets FMNL2 and suppresses progression of colorectal cancer. Am J Transl Res 2016; 8:5475-5484. [PMID: 28078018 PMCID: PMC5209498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Accepted: 12/14/2016] [Indexed: 06/06/2023]
Abstract
Increasing evidence indicates that dysregulation of miRNAs is involved in the initiation and progression of colorectal cancer (CRC). MicroRNA (miR)-613 has been reported to function as a tumor suppressor in many cancers. However, the precise role of miR-613 in CRC progression is unclear. This study aimed to investigate the role and underlying mechanism of miR-613 in growth and metastasis of CRC. Real-time quantitative PCR (qPCR) and western blot techniques were used to assess expression of miR-613 and formin-like 2 (FMNL2) in CRC cell lines and tissues. Luciferase reporter assays were conducted to investigate the association between miR-613 and FMNL2. Proliferation, wound healing, and transwell invasion assays, as well as flow cytometric analysis, were performed to evaluate the effect of miR-613 on proliferation, migration, invasion, and cell-cycle status, respectively, of CRC cells. We found that miR-613 was significantly downregulated in CRC cell lines and tissue samples, and correlated closely with TNM stage. miR-613 suppressed CRC cell proliferation, migration, and invasion, and induced cell-cycle arrest at G1 phase. FMNL2 was identified as a direct target of miR-613 in CRC cells. Importantly, FMNL2 overexpression rescued miR-613-induced suppression of proliferation, migration, and invasion of CRC cells. These results suggest that miR-613 functions as a tumor suppressor in the progression of CRC by regulating FMNL2.
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Affiliation(s)
- Bai Li
- Department of Colorectal and Anal Surgery, The First Hospital of Jilin UniversityChangchun 130021, P. R. China
| | - Zhongshi Xie
- Department of Gastrointestinal Colorectal and Anal Surgery, China-Japan Union Hospital of Jilin UniversityChangchun 130033, P. R. China
| | - Zhihong Li
- Department of Thoracic Surgery, The First Hospital of Jilin UniversityChangchun 130021, P. R. China
| | - Si Chen
- Department of Colorectal and Anal Surgery, The First Hospital of Jilin UniversityChangchun 130021, P. R. China
| | - Bo Li
- Department of Gastrointestinal Colorectal and Anal Surgery, China-Japan Union Hospital of Jilin UniversityChangchun 130033, P. R. China
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29
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Feng YH, Tsao CJ. Emerging role of microRNA-21 in cancer. Biomed Rep 2016; 5:395-402. [PMID: 27699004 DOI: 10.3892/br.2016.747] [Citation(s) in RCA: 312] [Impact Index Per Article: 39.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Accepted: 08/18/2016] [Indexed: 12/16/2022] Open
Abstract
MicroRNAs (miRs) are a class of single-stranded RNA molecules of 15-27 nucleotides in length that regulate gene expression at the post-translational level. miR-21 is one of the earliest identified cancer-promoting 'oncomiRs', targeting numerous tumor suppressor genes associated with proliferation, apoptosis and invasion. The regulation of miR-21 and its role in carcinogenesis have been extensively investigated. Recent studies have focused on the diagnostic and prognostic value of miR-21 as well as its implication in the drug resistance of human malignancies. The further use of miR-21 as a biomarker and target for cancer treatments is likely to improve the outcome for patients with cancer. The present review highlights recent findings associated with the importance of miR-21 in hematological and non-hematological malignancies.
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Affiliation(s)
- Yin-Hsun Feng
- Division of Hematology and Oncology, Department of Internal Medicine, Chi-Mei Medical Center, Tainan 71004, Taiwan, R.O.C.; Department of Nursing, College of Medicine and Life Science, Chung Hwa University of Medical Technology, Tainan 71703, Taiwan, R.O.C
| | - Chao-Jung Tsao
- Department of Hematology and Oncology, Chi-Mei Medical Center, Tainan 73657, Taiwan, R.O.C
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30
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Sollome J, Martin E, Sethupathy P, Fry RC. Environmental contaminants and microRNA regulation: Transcription factors as regulators of toxicant-altered microRNA expression. Toxicol Appl Pharmacol 2016; 312:61-66. [PMID: 27292125 DOI: 10.1016/j.taap.2016.06.009] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Revised: 05/23/2016] [Accepted: 06/07/2016] [Indexed: 12/23/2022]
Abstract
MicroRNAs (miRNAs) regulate gene expression by binding mRNA and inhibiting translation and/or inducing degradation of the associated transcripts. Expression levels of miRNAs have been shown to be altered in response to environmental toxicants, thus impacting cellular function and influencing disease risk. Transcription factors (TFs) are known to be altered in response to environmental toxicants and play a critical role in the regulation of miRNA expression. To date, environmentally-responsive TFs that are important for regulating miRNAs remain understudied. In a state-of-the-art analysis, we utilized an in silico bioinformatic approach to characterize potential transcriptional regulators of environmentally-responsive miRNAs. Using the miRStart database, genomic sequences of promoter regions for all available human miRNAs (n=847) were identified and promoter regions were defined as -1000/+500 base pairs from the transcription start site. Subsequently, the promoter region sequences of environmentally-responsive miRNAs (n=128) were analyzed using enrichment analysis to determine overrepresented TF binding sites (TFBS). While most (56/73) TFs differed across environmental contaminants, a set of 17 TFs was enriched for promoter binding among miRNAs responsive to numerous environmental contaminants. Of these, one TF was common to miRNAs altered by the majority of environmental contaminants, namely SWI/SNF-related, matrix-associated, actin-dependent regulator of chromatin, subfamily A, member 3 (SMARCA3). These identified TFs represent candidate common transcriptional regulators of miRNAs perturbed by environmental toxicants.
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Affiliation(s)
- James Sollome
- Department of Environmental Science & Engineering, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, USA
| | - Elizabeth Martin
- Department of Environmental Science & Engineering, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, USA
| | - Praveen Sethupathy
- Department of Genetics, School of Medicine, University of North Carolina, Chapel Hill, NC, USA
| | - Rebecca C Fry
- Department of Environmental Science & Engineering, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, USA; Curriculum in Toxicology, School of Medicine, University of North Carolina, Chapel Hill, NC, USA.
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31
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Yan L, Zhao W, Yu H, Wang Y, Liu Y, Xie C. A Comprehensive Meta-Analysis of MicroRNAs for Predicting Colorectal Cancer. Medicine (Baltimore) 2016; 95:e2738. [PMID: 26945359 PMCID: PMC4782843 DOI: 10.1097/md.0000000000002738] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Colorectal cancer (CRC) has been defined as a common malignancy due to its prevailing incidence in both males and females. Recently, the intrinsic value of microRNAs (miRNAs) with respect to early cancer diagnosis has been contentious as the diagnostic accuracy of miRNAs significantly varied across different studies. As a result of this, this pioneer meta-analysis was proposed to address this issue. Qualified studies were obtained through electronic systematical searching in Medline, Embase, and PubMed. On the basis of the random-effects model, we calculated the pooled sensitivity (SEN), specificity (SPE), and area under the receiver operating characteristics curve (AUC) to assess the diagnostic accuracy of miRNAs. Subgroup analysis and meta-regression were implemented to determine how different confounding factors affect the overall diagnostic accuracy which were considered important sources of heterogeneity. All the statistical analyses were conducted with R 3.2.1 software. We incorporated 103 studies from 36 articles with a total of 3124 CRC patients and 2579 healthy individuals. MiRNAs have a good performance with the following pooled estimates: SEN = 0.769 (95% CI = 0.733-0.802), SPE = 0.806 (95% CI = 0.781-0.829), AUC = 0.857, and partial AUC = 0.773. As suggested by subgroup analyses and meta-regression, multiple miRNAs appeared to be more favorable than single miRNA (AUC: 0.918 > 0.813, partial AUC: 0.848 > 0.701, sensitivity = 0.853 > 0.718, specificity = 0.860 > 0.772). Compared with samples of plasma, blood, tissue, and feces, miRNA obtained from serum samples were more powerful for detecting CRC particularly in Asian. Our study provided exclusive evidence that multiple miRNAs extracted from serum samples had superior diagnostic performance over single miRNA for screening CRC. Therefore, this approach that is characterized by high specificity and noninvasive nature may assist in early diagnosis of CRC particularly in Asian.
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Affiliation(s)
- Lin Yan
- From the Department of Oncology and Pneumology (LY, YW), Shandong Jiaotong Hospital; Department of Oncology (WZ, YL) ; Department of Gastrointestinal Surgery (HY), Shandong Provincial Qianfoshan Hospital, Shandong University; and The Third Department of Internal Medicine (CX), Shandong Tumor Hospital, Jinan, Shandong, China
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Nataraj SM, Prema CL, Vimalambike MG, Shivalingaiah SC, Sundaram S, Kumar AP, Math AK, Prashant A. Major Protein of Carcinoembryonic Antigen Gene Family - CD66c, A Novel Marker in Colon Carcinoma. J Clin Diagn Res 2016; 10:XC01-XC04. [PMID: 27042567 PMCID: PMC4800633 DOI: 10.7860/jcdr/2016/17180.7286] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Accepted: 01/08/2016] [Indexed: 12/15/2022]
Abstract
INTRODUCTION In view of rising trend of the incidence of colorectal carcinoma in the Indian population due to adoption of western lifestyles and behaviours, we investigated the expression of the new emerging stem cell biomarker, CD66c in colorectal carcinoma of Indian origin. AIM To study the expression of CD66c in human colorectal carcinoma and to correlate level of marker expression with tumour staging. MATERIALS AND METHODS This hospital based prospective study was conducted on 26 colorectal carcinoma patients in the age group of 20 years to 70 years. Surgically resected tumour specimens along with adjacent normal tissue were collected taking necessary precautions, paraffin embedded sections were prepared and used for histological and immunohistochemical analysis of CD66c. STATISTICAL ANALYSIS Descriptive statistical measures like mean, standard deviation, percentage was applied. Other inferential statistical tests like Chi-square, Fisher's-exact test and one-way ANOVA was applied to find out the association of CD66c with different stages. The difference were interpreted as statistically significant when p <0.05. RESULTS CD66c showed differential expression with membrane positivity in normal colorectal epithelial cells and cytoplasmic expression in tumour cells. There was significant correlation between CD66c expression and tumour site (p=0.02) with colon carcinoma showing positive expression compared to the rectal carcinoma. There was no significant correlation between CD66c staining and tumour stage (p=0.947). No significant relationship was observed between CD66c expression and other clinicopathologic variables studied such as sex (p=0.552), age (p=0.713) and tumour grade (p=0.263). CONCLUSION CD66c can be specifically used for colon carcinoma and may be a novel marker in colon carcinoma stem cell isolation. The quantification of CD66c can be further verified by flow cytometry and RT-PCR. Further studies can be carried out using CD66c alone or in combination with other markers to develop cancer stem cell directed therapy.
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Affiliation(s)
- Suma M Nataraj
- Professor and Head, Department of Biochemistry, Centre of Excellence in Molecular Biology and Regenerative Medicine, JSS Medical College, JSS University, Mysore, Karnataka, India
| | - Chaitra Linganna Prema
- Student, Department of Biochemistry, JSS Medical College, JSS University, Mysore, Karnataka, India
| | | | | | - Shivakumar Sundaram
- Professor and Head, Department of Pathology, Mandya Institute Of Medical Sciences, Mandya, Karnataka, India
| | - Anjali Pradeep Kumar
- Student, Department of Biochemistry, JSS Medical College, JSS University, Mysore, Karnataka, India
| | - Ananda Kuruvatti Math
- Student, Department of Biochemistry, JSS Medical College, JSS University, Mysore, Karnataka, India
| | - Akila Prashant
- Professor, Department of Biochemistry, Centre of Excellence in Molecular Biology and Regenerative Medicine, JSS Medical College, JSS University, Mysore, Karnataka, India
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33
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Krasnov GS, Dmitriev AA, Melnikova NV, Zaretsky AR, Nasedkina TV, Zasedatelev AS, Senchenko VN, Kudryavtseva AV. CrossHub: a tool for multi-way analysis of The Cancer Genome Atlas (TCGA) in the context of gene expression regulation mechanisms. Nucleic Acids Res 2016; 44:e62. [PMID: 26773058 PMCID: PMC4838350 DOI: 10.1093/nar/gkv1478] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Accepted: 12/05/2015] [Indexed: 02/07/2023] Open
Abstract
The contribution of different mechanisms to the regulation of gene expression varies for different tissues and tumors. Complementation of predicted mRNA–miRNA and gene–transcription factor (TF) relationships with the results of expression correlation analyses derived for specific tumor types outlines the interactions with functional impact in the current biomaterial. We developed CrossHub software, which enables two-way identification of most possible TF–gene interactions: on the basis of ENCODE ChIP-Seq binding evidence or Jaspar prediction and co-expression according to the data of The Cancer Genome Atlas (TCGA) project, the largest cancer omics resource. Similarly, CrossHub identifies mRNA–miRNA pairs with predicted or validated binding sites (TargetScan, mirSVR, PicTar, DIANA microT, miRTarBase) and strong negative expression correlations. We observed partial consistency between ChIP-Seq or miRNA target predictions and gene–TF/miRNA co-expression, demonstrating a link between these indicators. Additionally, CrossHub expression-methylation correlation analysis can be used to identify hypermethylated CpG sites or regions with the greatest potential impact on gene expression. Thus, CrossHub is capable of outlining molecular portraits of a specific gene and determining the three most common sources of expression regulation: promoter/enhancer methylation, miRNA interference and TF-mediated activation or repression. CrossHub generates formatted Excel workbooks with the detailed results. CrossHub is freely available at https://sourceforge.net/projects/crosshub/.
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Affiliation(s)
- George S Krasnov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow 119991, Russia N.N. Blokhin Russian Cancer Research Center, Moscow 115478, Russia Orekhovich Institute of Biomedical Chemistry, Russian Academy of Medical Sciences, Moscow 119121, Russia
| | - Alexey A Dmitriev
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow 119991, Russia
| | - Nataliya V Melnikova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow 119991, Russia
| | - Andrew R Zaretsky
- M.M. Shemyakin-Yu.A. Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow 117997, Russia
| | - Tatiana V Nasedkina
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow 119991, Russia N.N. Blokhin Russian Cancer Research Center, Moscow 115478, Russia
| | - Alexander S Zasedatelev
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow 119991, Russia N.N. Blokhin Russian Cancer Research Center, Moscow 115478, Russia
| | - Vera N Senchenko
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow 119991, Russia
| | - Anna V Kudryavtseva
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow 119991, Russia N.N. Blokhin Russian Cancer Research Center, Moscow 115478, Russia
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Association of Polymorphic Variants of miRNA Processing Genes with Larynx Cancer Risk in a Polish Population. BIOMED RESEARCH INTERNATIONAL 2015; 2015:298378. [PMID: 26688807 PMCID: PMC4673325 DOI: 10.1155/2015/298378] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/07/2015] [Revised: 10/02/2015] [Accepted: 10/25/2015] [Indexed: 11/29/2022]
Abstract
Laryngeal cancer (LC) is one of the most prevalent types of head and neck cancer. An increasing interest has been focused on the role of microRNA (miRNAs) in LC development. The study group consisted of 135 larynx cancer patients and 170 cancer-free individuals. Nine polymorphisms of pre-miRNA processing genes, DROSHA (rs6877842), DGCR8 (rs3757, rs417309, and rs1640299), RAN (rs14035), XPO5 (rs11077), DICER1 (rs13078 and rs3742330) and TARBP2 (rs784567), were performed by TaqMan SNP Genotyping Assay. It was found that the frequency of the GT and the TT polymorphic variants of XPO5 gene were higher in LC patients than in controls (p < 0.0001 and p = 0.000183, resp.). In turn, the frequency of the CT genotype of RAN gene was higher in controls than in LC patients (p < 0.0001). The TT and the AG of DICER1 gene (p = 0.034697 for rs13078 and p = 0.0004 for rs3742330) as well as the AG and the GG genotypes of TARBP2 gene (p = 0.008335 and p < 0.0001, resp.) were associated with higher risk of LC occurrence. Our data suggested that polymorphisms of miRNA processing genes might be useful as predictive factors for the LC development.
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Lu W, Zhang Y, Zhou L, Wang X, Mu J, Jiang L, Hu Y, Dong P, Liu Y. miR-122 inhibits cancer cell malignancy by targeting PKM2 in gallbladder carcinoma. Tumour Biol 2015; 37:10.1007/s13277-015-4308-z. [PMID: 26546436 DOI: 10.1007/s13277-015-4308-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Accepted: 10/20/2015] [Indexed: 12/11/2022] Open
Abstract
Gallbladder cancer (GBC) is one of the lethal diseases of digestive system. Increasing evidence prompt that microRNAs (miRs) might provide a novel therapeutical target for malignant disease. The antitumor effect of miR-122 to GBC is worth to be investigated. miR-122 expression level in GBC tissue sample and cell lines were assayed by qRT-PCR. miR-122 mimics were transfected for upregulation of miR-122 expression. Cell function was assayed by CCK8, flow cytometry, wound healing assay, migration assay, and invasion assay. The target genes of miR-122 were predicated by TargetScan online program and verified by western blot and luciferase report gene assay. miR-122 was decreased in GBC tissue and cell lines. The exogenous introduction of miR-122 exhibits multiple antitumor effect in GBC cell proliferation, invasion, and metastasis. Further studies revealed that the PKM2 was a regulative target of miR-122 in GBC cell. miR-122 also inhibits TGF-β-induced epithelium mesenchymal transformation of GBC cell by downregulating PKM2 expression. These findings suggest that miR-122 plays an important role in tumorigenesis of GBC through interfering PKM2, highlighting its usefulness as a potential therapeutic agent in GBC.
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Affiliation(s)
- Wei Lu
- Department of General Surgery, Xinhua Hospital, Affiliated to Shanghai Jiao Tong University, School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, People's Republic of China
- Institute of Social Cognitive and Behavioral Sciences, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, People's Republic of China
| | - Yijian Zhang
- Department of General Surgery, Xinhua Hospital, Affiliated to Shanghai Jiao Tong University, School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, People's Republic of China
- Institute of Biliary Tract Diseases Research, Shanghai Jiao Tong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, People's Republic of China
| | - Linzhu Zhou
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, People's Republic of China
| | - Xuan Wang
- Institute of Biliary Tract Diseases Research, Shanghai Jiao Tong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, People's Republic of China
| | - Jiasheng Mu
- Department of General Surgery, Xinhua Hospital, Affiliated to Shanghai Jiao Tong University, School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, People's Republic of China
| | - Lin Jiang
- Department of General Surgery, Xinhua Hospital, Affiliated to Shanghai Jiao Tong University, School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, People's Republic of China
- Institute of Biliary Tract Diseases Research, Shanghai Jiao Tong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, People's Republic of China
| | - Yunping Hu
- Department of General Surgery, Xinhua Hospital, Affiliated to Shanghai Jiao Tong University, School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, People's Republic of China
- Institute of Biliary Tract Diseases Research, Shanghai Jiao Tong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, People's Republic of China
| | - Ping Dong
- Department of General Surgery, Xinhua Hospital, Affiliated to Shanghai Jiao Tong University, School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, People's Republic of China
| | - Yingbin Liu
- Department of General Surgery, Xinhua Hospital, Affiliated to Shanghai Jiao Tong University, School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, People's Republic of China.
- Institute of Biliary Tract Diseases Research, Shanghai Jiao Tong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, People's Republic of China.
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Ren RJ, Zhang YF, Dammer EB, Zhou Y, Wang LL, Liu XH, Feng BL, Jiang GX, Chen SD, Wang G, Cheng Q. Peripheral Blood MicroRNA Expression Profiles in Alzheimer’s Disease: Screening, Validation, Association with Clinical Phenotype and Implications for Molecular Mechanism. Mol Neurobiol 2015; 53:5772-81. [DOI: 10.1007/s12035-015-9484-8] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Accepted: 10/12/2015] [Indexed: 10/22/2022]
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Bian Q, Chen JJ, Gu JP, Xu J. Association between pre-miR-27a functional polymorphism and risk of colorectal cancer in north Chinese Han population. Onco Targets Ther 2015; 8:3003-7. [PMID: 26527885 PMCID: PMC4621200 DOI: 10.2147/ott.s89754] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
MicroRNA-27a (miR-27a) is deemed as an oncogene in malignancies including colorectal cancer (CRC), and rs895819 within pre-miR-27a may affect its secondary structure, leading to its aberrant expression and dysfunction of its targeted gene. We investigated genotype and allele frequencies of the locus in 412 I–III stage CRC cases and 412 age- and sex-matched healthy individuals to explore the possible association between them in the north of Chinese population. The results showed that frequencies of alleles A and G and genotypes GG, AG, and AA of the locus were 65.7%, 34.3%, 17.0%, 34.7%, and 48.3% in cases and 69.9%, 30.1%, 9.9%, 40.2%, and 49.8% in controls, respectively. GG genotype of the locus was positively associated with an increased risk of CRC in codominant (P=0.01, adjusted odds ratio =1.541, 95% confidence interval =1.110–2.239 for genotype GG vs AA) and recessive (P=0.003, adjusted odds ratio =1.855, 95% confidence interval =1.221–2.786 for genotype GG vs AA/GA) models, indicating that GG genotype of the locus might increase susceptibility to CRC. Moreover, genotypes AG and GG and allele G were significantly associated with III stage (P<0.001, P<0.001, and P=0.001, respectively), suggesting that the locus was associated with the progression of CRC. These results suggested that rs895819 within pre-miR-27a was involved in colorectal carcinogenesis and progression, genotype GG of the locus might be a susceptible factor for CRC, and allele G and allele G carrier (genotypes AG and GG) could predict CRC progression in north Chinese Han population.
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Affiliation(s)
- Quan Bian
- Department of General Surgery, Tianjin Hospital, Tianjin, People's Republic of China
| | - Jian-Jun Chen
- Department of General Surgery, Beijing Chaoyang Hospital, Beijing, People's Republic of China
| | - Jun-Ping Gu
- Department of General Surgery, Tianjin Hospital, Tianjin, People's Republic of China
| | - Jing Xu
- Department of Gastrointestinal Surgery, Union Medical Center of Tianjin, Nankai University Affiliated Hospital, Tianjin, People's Republic of China
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Chang SW, Yue J, Wang BC, Zhang XL. miR-503 inhibits cell proliferation and induces apoptosis in colorectal cancer cells by targeting E2F3. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2015; 8:12853-12860. [PMID: 26722476 PMCID: PMC4680421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Accepted: 09/20/2015] [Indexed: 06/05/2023]
Abstract
OBJECTIVE Colorectal cancer (CRC) is one of the major healthcare problems worldwide. A lot of miRNAs are aberrantly expressed in CRC and involved in its development and progression. The purpose of this study was to investigate the expression and function of miR-503 in CRC. METHODS miR-503 expression was detected in CRC tissues and cell lines by Quantitative real-time PCR. Cell proliferation was assessed by MTT assay. Cell apoptosis and cell cycle distribution were measured by flow cytometry. Moreover, luciferase reporter assay and western blot were performed to determine the potential target of miR-503 in CRC cells. RESULTS miR-503 was significantly decreased in CRC tissues and cell lines in comparison with controls. Overexpression of miR-503 in CRC cells remarkably inhibited cell proliferation and induced apoptosis. Furthermore, E2F3 was identified as a direct target of miR-503 in CRC cells and down-regulation of E2F3 had a similar effect as miR-503 overexpression on CRC cells. In addition, the expression of E2F3 was negatively correlated with miR-503 level in CRC tissues. CONCLUSIONS miR-503 inhibits cell proliferation and induces apoptosis by directly targeting E2F3 in CRC cells, indicating its potential application in CRC diagnosis and therapy.
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Affiliation(s)
- Shun-Wu Chang
- Department of Surgery, Third Clinical Medical College of Southern Medical UniversityGuangzhou 510630, China
- Department of Surgery, People’s Hospital of Hainan ProvinceHaikou 570311, China
| | - Jie Yue
- Department of Surgery, People’s Hospital of Hainan ProvinceHaikou 570311, China
| | - Bao-Chun Wang
- Department of Surgery, People’s Hospital of Hainan ProvinceHaikou 570311, China
| | - Xue-Li Zhang
- Department of General Surgery, Fengxian Hospital Affiliated to Southern Medical UniversityShanghai 201499, China
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miR-612 negatively regulates colorectal cancer growth and metastasis by targeting AKT2. Cell Death Dis 2015; 6:e1808. [PMID: 26158514 PMCID: PMC4650731 DOI: 10.1038/cddis.2015.184] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2015] [Revised: 05/01/2015] [Accepted: 05/26/2015] [Indexed: 12/21/2022]
Abstract
Colorectal cancer (CRC) is one of the most common cancers worldwide, with a particularly high incidence in developed countries. Distant metastasis and recurrence are the main causes of CRC-related deaths. MicroRNAs (miRNAs) in the serum make them potential biomarkers for cancers, as reported in serum or tumor tissues from CRC patients. In this study, we found that miR-612 expression was significantly lower in CRC tissues or cells compared with peritumor tissues or normal cells, and lower in metastatic CRC specimens compared with non-metastatic specimens, whereas AKT2 exhibited opposite trend. Gain-of-function and loss-of-function assays showed that miR-612 inhibited CRC cell proliferation and migration in vitro by Cell Counting Kit-8 and transwell assays. Further analysis revealed that miR-612 directly suppressed AKT2, which in turn inhibited the downstream epithelial–mesenchymal transition-related signaling pathway. These results were additionally validated in vivo by tumorigenesis and liver metastasis experiments. The results of this study suggested a critical role of miR-612 in the development of CRC.
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Qiu JJ, Yan JB. Long non-coding RNA LINC01296 is a potential prognostic biomarker in patients with colorectal cancer. Tumour Biol 2015; 36:7175-83. [PMID: 25894381 DOI: 10.1007/s13277-015-3448-5] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2015] [Accepted: 04/08/2015] [Indexed: 02/05/2023] Open
Abstract
Colorectal cancer (CRC), one of the most malignant cancers, is currently the fourth leading cause of cancer deaths worldwide. Recent studies indicated that long non-coding RNAs (lncRNAs) could be robust molecular prognostic biomarkers that can refine the conventional tumor-node-metastasis staging system to predict the outcomes of CRC patients. In this study, the lncRNA expression profiles were analyzed in five datasets (GSE24549, GSE24550, GSE35834, GSE50421, and GSE31737) by probe set reannotation and an lncRNA classification pipeline. Twenty-five lncRNAs were differentially expressed between CRC tissue and tumor-adjacent normal tissue samples. In these 25 lncRNAs, patients with higher expression of LINC01296, LINC00152, and FIRRE showed significantly better overall survival than those with lower expression (P < 0.05), suggesting that these lncRNAs might be associated with prognosis. Multivariate analysis indicated that LINC01296 overexpression was an independent predictor for patients' prognosis in the test datasets (GSE24549, GSE24550) (P = 0.001) and an independent validation series (GSE39582) (P = 0.027). Our results suggest that LINC01296 could be a novel prognosis biomarker for the diagnosis of CRC.
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Affiliation(s)
- Jia-Jun Qiu
- Shanghai Children's Hospital, Shanghai Institute of Medical Genetics, Shanghai Jiao Tong University School of Medicine, 24/1400 West Beijing Rd., Shanghai, 200040, China
| | - Jing-Bin Yan
- Shanghai Children's Hospital, Shanghai Institute of Medical Genetics, Shanghai Jiao Tong University School of Medicine, 24/1400 West Beijing Rd., Shanghai, 200040, China. .,Key Laboratory of Embryo Molecular Biology, Ministry of Health of China and Shanghai Key Laboratory of Embryo and Reproduction Engineering, Shanghai, 200040, China. .,State Key Laboratory of Biocherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China.
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