1
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Mahdi Khanifar M, Zafari Z, Sheykhhasan M. Crosstalk between long non-coding RNAs and p53 signaling pathway in colorectal cancer: A review study. Pathol Res Pract 2023; 249:154756. [PMID: 37611430 DOI: 10.1016/j.prp.2023.154756] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 08/08/2023] [Accepted: 08/08/2023] [Indexed: 08/25/2023]
Abstract
Colorectal cancer (CRC) is one of the most prevalent malignancies worldwide and the third leading cause of cancer-related fatalities. Long non-coding RNAs (lncRNAs) are key regulators of diverse physiological processes and are dysregulated in a wide range of pathophysiological circumstances such as CRC. Studies revealed that aberrant expressions of lncRNAs clearly modulate the expression level of p53 gene in CRC, thereby transactivating multiple downstream pathways. P53 is regarded as a crucial tumor suppressor gene which promotes cell-cycle arrest, DNA repair, senescence or apoptosis in response to cellular stresses. P53 is also mutated in CRC as well as various types of human malignancies. Therefore, lncRNAs interact with the p53 signaling pathway in numerus ways and significantly influence CRC-related processes. The current findings in the investigation of the crosstalk between lncRNAs and the P53 pathway in controlling CRC carcinogenesis, tumor progression, and therapeutic resistance are summarized in the this review. A deeper knowledge of CRC carcinogenesis may also have implications in CRC prevention and treatment through more research.
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Affiliation(s)
- Mohammad Mahdi Khanifar
- School of Molecular Science, University of Western Australia, Perth, Western Australia, Australia; Department of Biology, Shahed University, Tehran, Iran
| | - Zahra Zafari
- Department of Biology, Shahed University, Tehran, Iran.
| | - Mohsen Sheykhhasan
- Research Center for Molecular Medicine, Hamadan University of Medical Sciences, Hamadan, Iran; Department of Mesenchymal Stem Cells, Academic Center for Education, Culture and Research, Qom, Iran.
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2
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El-Sheikh NM, Abulsoud AI, Fawzy A, Wasfey EF, Hamdy NM. LncRNA NNT-AS1/hsa-miR-485-5p/HSP90 axis in-silico and clinical prospect correlated-to histologic grades-based CRC stratification: A step toward ncRNA Precision. Pathol Res Pract 2023; 247:154570. [PMID: 37244051 DOI: 10.1016/j.prp.2023.154570] [Citation(s) in RCA: 30] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Revised: 05/20/2023] [Accepted: 05/23/2023] [Indexed: 05/29/2023]
Abstract
The oncogenic effects of long non-coding RNA (lncRNA) Nicotinamide Nucleotide Transhydrogenase-antisense RNA1 (NNT-AS1) role in colorectal cancer (CRC) hasn't been sufficiently inspected in relation to the Homo sapiens (hsa)-microRNA (miR)- 485-5p/ heat shock protein 90 (HSP90) axis, clinically. qRT-PCR was performed to detect lncRNA NNT-AS1 and hsa-miR-485-5p expression levels in 60 Egyptian patients' sera. HSP90 serum level was quantified using Enzyme-linked immunosorbent assay (ELISA). The relative expression level of the studied non-coding RNAs as well as the HSP90 ELISA concentration were correlated with patients clinicopathological characteristics and correlated to each other. The axis diagnostic utility in comparison with carbohydrate antigen 19-9 (CA19-9) and carcinoembryonic antigen (CEA) tumor markers (TMs) was studied by receiver operating characteristic (ROC) curve analysis. The relative lncRNA NNT-AS1 expression level fold change 56.7 (13.5-112) and HSP90 protein ELISA level 6.68 (5.14-8.77) (ng/mL) were elevated, while, for hsa-miR-485-5p 0.0474 (0.0236-0.135) expression fold change was repressed in CRC Egyptian patients' cohort sera, being compared to 28 apparently healthy control subjects. LncRNA NNT-AS1 specificity is 96.4% and a sensitivity of 91.7%, hsa-miR-485-5p showed 96.4% specificity, 90% sensitivity, and for HSP90 89.3%, 70% specificity and sensitivity, respectively. Those specificities and sensitivities were superior to the classical CRC TMs. A significant negative correlation was found between hsa-miR-485-5p with lncRNA NNT-AS1 (r = -0.933) expression fold change or with HSP90 protein blood level (r = -0.997), but, significant positive correlation was there between lncRNA NNT-AS1 and HSP90 (r = 0.927). LncRNA NNT-AS1/hsa-miR-485-5p/HSP90 axis could be a prospect for CRC development as well as diagnosis. Being correlated and related to CRC histologic grades 1-3, therefore, lncRNA NNT-AS1/hsa-miR-485-5p/HSP90 axis (not individually) expression approved clinically and in silico, could aid treatment precision.
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Affiliation(s)
- Nada M El-Sheikh
- Biochemistry Department, Faculty of Pharmacy, Heliopolis University, El Salam City, 11785 Cairo, Egypt
| | - Ahmed I Abulsoud
- Biochemistry Department, Faculty of Pharmacy, Heliopolis University, El Salam City, 11785 Cairo, Egypt; Biochemistry Department, Faculty of Pharmacy (Boy's Branch), Al-Azhar University, Nasr City, 11884 Cairo, Egypt
| | - Amal Fawzy
- Department of Clinical and Chemical Pathology, National Cancer Institute, Cairo University, 11796 Cairo, Egypt
| | - Eman F Wasfey
- Biochemistry Department, Faculty of Pharmacy, Ain Shams University, Abassia, 11566 Cairo, Egypt
| | - Nadia M Hamdy
- Biochemistry Department, Faculty of Pharmacy, Ain Shams University, Abassia, 11566 Cairo, Egypt.
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3
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Competing Endogenous RNAs" (ceRNAs) in Colorectal Cancer: a review article. Expert Rev Mol Med 2022; 24:e27. [PMID: 35748050 DOI: 10.1017/erm.2022.21] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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4
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Poursheikhani A, Abbaszadegan MR, Kerachian MA. Long non-coding RNA AC087388.1 as a novel biomarker in colorectal cancer. BMC Cancer 2022; 22:196. [PMID: 35193569 PMCID: PMC8862536 DOI: 10.1186/s12885-022-09282-0] [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: 09/09/2021] [Accepted: 02/09/2022] [Indexed: 12/24/2022] Open
Abstract
Background Several investigations have reported diverse roles of long non-coding RNA (lncRNA) in biological processes, tumor development, and progression of colorectal cancer (CRC). In this study, we investigated the lncRNA AC087388.1 tumorigenic role in CRC cells. Methods The CRC tissues were collected at the Reza Radiotherapy and Oncology Center, Mashhad, Iran. The human SW-48 and HT-29 CRC cell lines were obtained from the national cell bank of Iran. The cells were cultured according to ATCC (the American Type Culture Collection) recommendations. Quantitative real-time PCR was applied to assess the RNA expression. ShRNA transfection was done to downregulate the target gene. MTT and apoptosis assays were conducted to evaluate cell proliferation and viability, respectively. Colony formation assay, wound healing assay, and invasion assay were applied to determine growth, motility, and invasion of the cells, respectively. ENCORI online tool was used as downstream enrichment analysis. Results Forty CRC patients were encompassed in this study. The results demonstrated that the lncRNA SLC16A1-AS1, AC087388.1, and ELFN1-AS1 were significantly overexpressed in the CRC tissues in comparison to their normal counterpart margins. All the lncRNAs have shown significant Area Under Curve (AUC) values in the patients. Downregulation of lncRNA AC087388.1 remarkably decreased the cell proliferation and viability of the CRC cells. In addition, the data demonstrated that the downregulation of lncRNA AC087388.1 significantly suppressed cell growth and colony formation capability in the cells. Also, downregulation of lncRNA AC087388.1 attenuated motility and invasion of CRC cells, and significantly decreased the expression of invasion genes. In-silico functional enrichment analysis indicated that the lncRNA AC087388.1 has contributed to crucial signaling pathways in tumorigenesis such as the p53 and Wnt signaling pathways, apoptosis, and cell cycle. Conclusions Altogether, we showed that lncRNA AC087388.1 has an oncogenic role in tumorigenesis of CRC, and it can be considered as a novel diagnostic and prognostic biomarker in CRC. Supplementary Information The online version contains supplementary material available at 10.1186/s12885-022-09282-0.
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Affiliation(s)
- Arash Poursheikhani
- Medical Genetics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Medical Genetics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammad Reza Abbaszadegan
- Medical Genetics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Medical Genetics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.,Immunology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammad Amin Kerachian
- Medical Genetics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran. .,Department of Medical Genetics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran. .,Cancer Genetics Research Unit, Reza Radiotherapy and Oncology Center, Mashhad, Iran.
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Formin-like protein 2 promotes cell proliferation by a p27-related mechanism in human breast cancer cells. BMC Cancer 2021; 21:760. [PMID: 34193109 PMCID: PMC8247103 DOI: 10.1186/s12885-021-08533-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Accepted: 06/23/2021] [Indexed: 12/25/2022] Open
Abstract
Background Breast cancer is the leading cause of cancer-related deaths in females worldwide. Formin-like protein 2 (FMNL2) is a member of formin family that governs cytokinesis, cell polarity, morphogenesis and cell division. To our knowledge, the function of FMNL2 in breast cancer proliferation still remains uncovered. Methods Tumor immune estimation resource (TIMER) analysis was used to detect the correlation between FMNL2 and Ki67 in breast cancer tissues. Quantitative real-time transcription polymerase chain reaction (qRT-PCR) and western blotting were performed to analyze the expression in human breast cancer cells. Moreover, RNA interference (RNAi) and plasmids were performed to silence and overexpress FMNL2 and p27. The CCK8, MTT, cell counting, colony formation, and 5-ethynyl-2-deoxyuridine (EdU) incorporation assays were used to detect cell proliferation, respectively. Flow cytometry analysis was used to detect cell cycle distribution. Further, the distribution of p27 was examined using immunofluorescence. Results We found that FMNL2 expression was positively associated with Ki67 among collected breast cancer tissues and in TCGA database. Compared to lower proliferative cells MCF7 and T47D, FMNL2 was overexpressed in highly proliferative breast cancer cells MDA-MB-231, BT549 and SUM159, accompanied by reduced levels of p27 and p21, and elevated CyclinD1 and Ki67 expression. FMNL2 silencing significantly inhibited the cell proliferation of MDA-MB-231 and BT549 cells. Meanwhile, FMNL2 overexpression distinctly promoted the cell proliferation of MCF7 cells. Furthermore, FMNL2 suppressed the nuclear levels of p27 and promoted p27 proteasomal degradation in human breast cancer cells. The ubiquitination of p27 was inhibited by FMNL2 silencing in BT549 cells. Besides, p27 silencing markedly elevated Ki67 expression and cell viability, which could be blocked by additionally FMNL2 silencing in MDA-MB-231 and BT549 cells. Furthermore, overexpression of p27WT significantly reversed the increased levels of FMNL2 and Ki67, cell viability and cell cycle progression induced by FMNL2 overexpression in MCF7 cells. More importantly, compared to p27WT group, those effects could be significantly reversed by p27△NLS overexpression. Conclusions These results demonstrated that FMNL2 promoted cell proliferation partially by reducing p27 nuclear localization and p27 protein stability in human breast cancer cells, suggesting the pivotal role of FMNL2 in breast cancer progression. Supplementary Information The online version contains supplementary material available at 10.1186/s12885-021-08533-w.
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Lu C, Luo X, Xing C, Mao Y, Xu Y, Gao W, Wang W, Zhan T, Wang G, Liu Z, Yu C. Construction of a novel mRNA-miRNA-lncRNA network and identification of potential regulatory axis associated with prognosis in colorectal cancer liver metastases. Aging (Albany NY) 2021; 13:14968-14988. [PMID: 34081622 PMCID: PMC8221294 DOI: 10.18632/aging.203049] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 04/29/2021] [Indexed: 12/24/2022]
Abstract
Liver metastasis is a leading cause of death in patients with colorectal cancer (CRC). Increasing evidence demonstrates that competing endogenous RNA (ceRNA) networks play important roles in malignant cancers. The purpose of this study was to identify molecular markers and build a ceRNA network as a significant predictor of colorectal liver metastases (CRLM). By integrated bioinformatics analysis, we found that apolipoprotein C1 (APOC1) was upregulated in CRLM and associated with prognosis in patients with CRC and thereby established an APOC1-dependent ceRNA network. By survival analysis, expression analysis, and correlation analysis of each element in the ceRNA network, we identified that ZEB1-AS1, miR-335-5p and APOC1 regulated each other. We further experimentally confirmed that ZEB1-AS1 promoted a CRC progression via regulating the expression of miR-335-5p that controlled the expression of APOC1. Our findings indicate that the ZEB1-AS1-miR-335-5p-APOC1 ceRNA regulatory network is significantly valuable for better prognosis of patients with CRC and as a new therapeutic target for the treatment of CRLM.
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Affiliation(s)
- Chen Lu
- Department of General Surgery, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, Jiangsu, China
| | - Xiagang Luo
- Department of General Surgery, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, Jiangsu, China
| | - Cheng Xing
- Department of General Surgery, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, Jiangsu, China
| | - Yonghuan Mao
- Department of General Surgery, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, Jiangsu, China
| | - Yuting Xu
- Department of Ophthalmology, Zhongnan Hospital of Wuhan University, Wuhan 430071, Hubei, China
| | - Wenjie Gao
- Department of General Surgery, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, Jiangsu, China
| | - Wulin Wang
- Department of Gastrointestinal Surgery, Jingzhou Central Hospital, Jingzhou 434000, Hubei, China
| | - Tian Zhan
- Department of General Surgery, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, Jiangsu, China
| | - Guoguang Wang
- Department of General Surgery, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, Jiangsu, China
| | - Zhengxia Liu
- Department of Geriatrics, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, Jiangsu, China
| | - Chunzhao Yu
- Department of General Surgery, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, Jiangsu, China
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Zhao J, Wang Y, Gao J, Wang Y, Zhong X, Wu X, Li H. A nine-gene signature to improve prognosis prediction of colon carcinoma. Cell Cycle 2021; 20:1021-1032. [PMID: 33985413 DOI: 10.1080/15384101.2021.1919827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
This study aims to establish a gene model that can robustly and effectively predict the prognosis of colon carcinoma patients via bioinformatics. Data along with clinical information in GSE39582 Series Matrix were firstly downloaded from Gene Expression Omnibus (GEO) database. Next, differentially expressed genes (DEGs) were obtained through "edgeR" analysis. Finally, a risk predication model was established through a series of regression analyses, and then prognostic performance of the model was comprehensively evaluated though Kaplan-Meier and receiver operating characteristic (ROC) analysis. Gene set enrichment analysis (GSEA) was further performed. Totally, 846 DEGs were obtained by analyzing the gene expression data in GSE39582 dataset. A 9-gene signature-based risk predication model was established via regression analyses, and the model-based risk score was formulated as: Riskscore = (-0.1214) * TNFRSF11A + (-0.2617) * TMEM97 + (-0.1041) * LGR5 + 0.0973 * KLK10 + 0.1655 * HOXB8 + 0.227 * FKBP10 + (-0.1312) * CXCL13 + (-0.1316) * CXCL10 + 0.2593 * CD36. Kaplan-Meier curve showed that colon carcinoma patients in the high-risk group had a lower survival rate. GSEA showed that high-risk group and low-risk group displayed significant difference in biological pathways including ECM RECEPTOR INTERACTION. Besides, correlation analysis between the riskscore of the model and clinical features of patients revealed that the model could effectively predict the prognosis of patients in different ages (age>65, age<65) and stages (tumor_stage I/II, tumor_stage III/IV, T3&T4, N0&N1, N2&N3, M0). This study provides a robust model for the prognosis prediction of colon carcinoma, and lays a basis for researching the molecular mechanism underlying the development of colon carcinoma.
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Affiliation(s)
- Jinlai Zhao
- Department of Gastrointestinal Surgery, Tangshan Central Hospital, Tangshan, China
| | - Yigang Wang
- Department of Anus and Intestine Surgery, Tangshan Central Hospital, Tangshan, China
| | - Jianchao Gao
- Department of Gastrointestinal Surgery, Tangshan Central Hospital, Tangshan, China
| | - Yang Wang
- Department of Gastrointestinal Surgery, Tangshan Central Hospital, Tangshan, China
| | - Xuan Zhong
- Department of Gastrointestinal Surgery, Tangshan Central Hospital, Tangshan, China
| | - Xiaotang Wu
- researcher, Shanghai Engineering Research Center of Pharmaceutical Translation, Shanghai, China
| | - Hua Li
- Department of Gastrointestinal Surgery, Tangshan Central Hospital, Tangshan, China
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Liao Z, Nie H, Wang Y, Luo J, Zhou J, Ou C. The Emerging Landscape of Long Non-Coding RNAs in Colorectal Cancer Metastasis. Front Oncol 2021; 11:641343. [PMID: 33718238 PMCID: PMC7947863 DOI: 10.3389/fonc.2021.641343] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 01/29/2021] [Indexed: 12/11/2022] Open
Abstract
Colorectal cancer (CRC) is one of the most common gastrointestinal cancers, with extremely high rates of morbidity and mortality. The main cause of death in CRC is distant metastasis; it affects patient prognosis and survival and is one of the key challenges in the treatment of CRC. Long non-coding RNAs (lncRNAs) are a group of non-coding RNA molecules with more than 200 nucleotides. Abnormal lncRNA expression is closely related to the occurrence and progression of several diseases, including cancer. Recent studies have shown that numerous lncRNAs play pivotal roles in the CRC metastasis, and reversing the expression of these lncRNAs through artificial means can reduce the malignant phenotype of metastatic CRC to some extent. This review summarizes the major mechanisms of lncRNAs in CRC metastasis and proposes lncRNAs as potential therapeutic targets for CRC and molecular markers for early diagnosis.
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Affiliation(s)
- Zhiming Liao
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, China
| | - Hui Nie
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, China
| | - Yutong Wang
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, China
| | - Jingjing Luo
- Teaching and Research Room of Biochemistry and Molecular Biology, Medical School of Hunan University of Traditional Chinese Medicine, Changsha, China
| | - Jianhua Zhou
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Chunlin Ou
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
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Brex D, Barbagallo C, Mirabella F, Caponnetto A, Battaglia R, Barbagallo D, Caltabiano R, Broggi G, Memeo L, Di Pietro C, Purrello M, Ragusa M. LINC00483 Has a Potential Tumor-Suppressor Role in Colorectal Cancer Through Multiple Molecular Axes. Front Oncol 2021; 10:614455. [PMID: 33552987 PMCID: PMC7855711 DOI: 10.3389/fonc.2020.614455] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Accepted: 12/04/2020] [Indexed: 12/20/2022] Open
Abstract
Long non-coding RNAs (lncRNAs) are the most heterogeneous class of non-protein-coding RNAs involved in a broad spectrum of molecular mechanisms controlling genome function, including the generation of complex networks of RNA-RNA competitive interactions. Accordingly, their dysregulation contributes to the onset of many tumors, including colorectal cancer (CRC). Through a combination of in silico approaches (statistical screening of expression datasets) and in vitro analyses (enforced expression, artificial inhibition, or activation of pathways), we identified LINC00483 as a potential tumor suppressor lncRNA in CRC. LINC00483 was downregulated in CRC biopsies and metastases and its decreased levels were associated with severe clinical features. Inhibition of the MAPK pathway and cell cycle arrest by starvation induced an upregulation of LINC00483, while the epithelial to mesenchymal transition activation by TGFβ-1 and IL-6 caused its down-modulation. Moreover, enforced expression of LINC00483 provoked a slowing down of cell migration rate without affecting cell proliferation. Since LINC00483 was predominantly cytoplasmic, we hypothesized a “miRNA sponge” role for it. Accordingly, we computationally reconstructed the LINC00483/miRNA/mRNA axes and evaluated the expression of mRNAs in different experimental conditions inducing LINC00483 alteration. By this approach, we identified a set of mRNAs sharing the miRNA response elements with LINC00483 and modulated in accordance with it. Moreover, we found that LINC00483 is potentially under negative control of transcription factor HNF4α. In conclusion, we propose that LINC00483 is a tumor suppressor in CRC that, through an RNA-RNA network, may control cell migration and participate in proliferation signaling.
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Affiliation(s)
- Duilia Brex
- Department of Biomedical and Biotechnological Sciences - Section of Biology and Genetics "Giovanni Sichel," University of Catania, Catania, Italy
| | - Cristina Barbagallo
- Department of Biomedical and Biotechnological Sciences - Section of Biology and Genetics "Giovanni Sichel," University of Catania, Catania, Italy
| | - Federica Mirabella
- Department of Biomedical and Biotechnological Sciences - Section of Biology and Genetics "Giovanni Sichel," University of Catania, Catania, Italy
| | - Angela Caponnetto
- Department of Biomedical and Biotechnological Sciences - Section of Biology and Genetics "Giovanni Sichel," University of Catania, Catania, Italy
| | - Rosalia Battaglia
- Department of Biomedical and Biotechnological Sciences - Section of Biology and Genetics "Giovanni Sichel," University of Catania, Catania, Italy
| | - Davide Barbagallo
- Department of Biomedical and Biotechnological Sciences - Section of Biology and Genetics "Giovanni Sichel," University of Catania, Catania, Italy
| | - Rosario Caltabiano
- Department of Medical, Surgical Sciences and Advanced Technologies G.F. Ingrassia, University of Catania, Catania, Italy
| | - Giuseppe Broggi
- Department of Medical, Surgical Sciences and Advanced Technologies G.F. Ingrassia, University of Catania, Catania, Italy
| | - Lorenzo Memeo
- Department of Experimental Oncology, Mediterranean Institute of Oncology (IOM), Catania, Italy
| | - Cinzia Di Pietro
- Department of Biomedical and Biotechnological Sciences - Section of Biology and Genetics "Giovanni Sichel," University of Catania, Catania, Italy
| | - Michele Purrello
- Department of Biomedical and Biotechnological Sciences - Section of Biology and Genetics "Giovanni Sichel," University of Catania, Catania, Italy
| | - Marco Ragusa
- Department of Biomedical and Biotechnological Sciences - Section of Biology and Genetics "Giovanni Sichel," University of Catania, Catania, Italy
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Ho-Xuan H, Lehmann G, Glazar P, Gypas F, Eichner N, Heizler K, Schlitt HJ, Zavolan M, Rajewsky N, Meister G, Hackl C. Gene Expression Signatures of a Preclinical Mouse Model during Colorectal Cancer Progression under Low-Dose Metronomic Chemotherapy. Cancers (Basel) 2020; 13:E49. [PMID: 33375322 PMCID: PMC7795790 DOI: 10.3390/cancers13010049] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 12/21/2020] [Accepted: 12/23/2020] [Indexed: 12/22/2022] Open
Abstract
Understanding the molecular signatures of colorectal cancer progression under chemotherapeutic treatment will be crucial for the success of future therapy improvements. Here, we used a xenograft-based mouse model to investigate, how whole transcriptome signatures change during metastatic colorectal cancer progression and how such signatures are affected by LDM chemotherapy using RNA sequencing. We characterized mRNAs as well as non-coding RNAs such as microRNAs, long non-coding RNAs and circular RNAs in colorectal-cancer bearing mice with or without LDM chemotherapy. Furthermore, we found that circZNF609 functions as oncogene, since over-expression studies lead to an increased tumor growth while specific knock down results in smaller tumors. Our data represent novel insights into the relevance of non-coding and circRNAs in colorectal cancer and provide a comprehensive resource of gene expression changes in primary tumors and metastases. In addition, we present candidate genes that could be important modulators for successful LDM chemotherapy.
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Affiliation(s)
- Hung Ho-Xuan
- Biochemistry Center Regensburg (BCR), Laboratory for RNA Biology, University of Regensburg, 93053 Regensburg, Germany; (H.H.-X.); (G.L.); (N.E.); (K.H.)
| | - Gerhard Lehmann
- Biochemistry Center Regensburg (BCR), Laboratory for RNA Biology, University of Regensburg, 93053 Regensburg, Germany; (H.H.-X.); (G.L.); (N.E.); (K.H.)
| | - Petar Glazar
- Laboratory for Systems Biology of Gene Regulatory Elements, Berlin Institute for Medical Systems Biology, Max-Delbruck Center for Molecular Medicine, 10115 Berlin, Germany; (P.G.); (N.R.)
| | - Foivos Gypas
- Biozentrum, University of Basel, 4056 Basel, Switzerland; (F.G.); (M.Z.)
| | - Norbert Eichner
- Biochemistry Center Regensburg (BCR), Laboratory for RNA Biology, University of Regensburg, 93053 Regensburg, Germany; (H.H.-X.); (G.L.); (N.E.); (K.H.)
| | - Kevin Heizler
- Biochemistry Center Regensburg (BCR), Laboratory for RNA Biology, University of Regensburg, 93053 Regensburg, Germany; (H.H.-X.); (G.L.); (N.E.); (K.H.)
| | - Hans J. Schlitt
- Department of Surgery, University Hospital Regensburg, 93053 Regensburg, Germany;
| | - Mihaela Zavolan
- Biozentrum, University of Basel, 4056 Basel, Switzerland; (F.G.); (M.Z.)
| | - Nikolaus Rajewsky
- Laboratory for Systems Biology of Gene Regulatory Elements, Berlin Institute for Medical Systems Biology, Max-Delbruck Center for Molecular Medicine, 10115 Berlin, Germany; (P.G.); (N.R.)
| | - Gunter Meister
- Biochemistry Center Regensburg (BCR), Laboratory for RNA Biology, University of Regensburg, 93053 Regensburg, Germany; (H.H.-X.); (G.L.); (N.E.); (K.H.)
| | - Christina Hackl
- Department of Surgery, University Hospital Regensburg, 93053 Regensburg, Germany;
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Cheng C, Li H, Zheng J, Xu J, Gao P, Wang J. FENDRR Sponges miR-424-5p to Inhibit Cell Proliferation, Migration and Invasion in Colorectal Cancer. Technol Cancer Res Treat 2020; 19:1533033820980102. [PMID: 33356998 PMCID: PMC7768317 DOI: 10.1177/1533033820980102] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Objective: LncRNAs are non-coding RNAs exerting vital roles in the occurrence and
development of various cancer types. This study tended to describe the
expression pattern of FENDRR in colorectal cancer (CRC), and further
investigate the role of FENDRR in CRC cell biological behaviors. Methods: Gene expression profile of colon cancer was accessed from the TCGA database,
and then processed for differential analysis for identification of
differentially expressed lncRNAs and miRNAs. Some in vitro
experiments like qRT-PCR, MTT, colony formation assay, wound healing assay
and Transwell assay were performed to assess the effect of FENDRR on cell
biological behaviors. Dual-luciferase reporter assay was conducted to
further validate the targeting relationship between FENDRR and miR-424-5p,
and rescue experiments were carried out for determining the mechanism of
FENDRR/miR-424-5p underlying the proliferation, migration and invasion of
CRC cells. Results: Bioinformatics analysis suggested that FENDRR was significantly
down-regulated in CRC tissue, and low FENDRR was intimately correlated to
poor prognosis. FENDRR overexpression could greatly inhibit cell
proliferation, migration and invasion. Besides, there was a negative
correlation between FENDRR and miR-424-5p. Dual-luciferase reporter assay
indicated that miR-424-5p was a direct target of FENDRR. Rescue experiments
discovered that FENDRR exerted its role in cell proliferation, migration and
invasion in CRC via targeting miR-424-5p. Conclusion: FENDRR is poorly expressed in CRC tissue and cells, and low FENDRR is
responsible for the inhibition of cell proliferation, migration and invasion
of CRC by means of targeting miR-424-5p.
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Affiliation(s)
- Chuan Cheng
- Department of Colorectal and Anal Surgery, Lishui Municipal Central Hospital, Zhejiang Province, China
| | - Huixia Li
- Department of Colorectal and Anal Surgery, Lishui Municipal Central Hospital, Zhejiang Province, China
| | - Jiujian Zheng
- Department of Colorectal and Anal Surgery, Lishui Municipal Central Hospital, Zhejiang Province, China
| | - Jie Xu
- Department of Colorectal and Anal Surgery, Lishui Municipal Central Hospital, Zhejiang Province, China
| | - Peng Gao
- Department of Colorectal and Anal Surgery, Lishui Municipal Central Hospital, Zhejiang Province, China
| | - Jianping Wang
- Department of Colorectal and Anal Surgery, Lishui Municipal Central Hospital, Zhejiang Province, China
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12
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Long noncoding RNA LINC02580 suppresses the invasion-metastasis cascade in hepatocellular carcinoma by targeting SRSF1. Biochem Biophys Res Commun 2020; 533:685-691. [PMID: 33168192 DOI: 10.1016/j.bbrc.2020.10.061] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 10/19/2020] [Indexed: 12/16/2022]
Abstract
Hepatocellular carcinoma (HCC) is a severe global health problem. There is increasing evidence for the important roles of long noncoding RNAs in tumorigenesis and metastasis in HCC. In this study, we identified and characterized a novel long noncoding RNA, LINC02580, involved in HCC. LINC02580 was highly downregulated in HCC cohorts and was identified as a tumor suppressor. Low LINC02580 expression in patients with HCC was correlated with poor prognosis. Functional assays indicated that LINC02580-deficient cells show enhanced colony formation, migration, and invasion in vitro and promote subcutaneous tumor formation and distant lung metastasis in vivo. With respect to the underlying mechanism, we found that LINC02580 modulates the epithelial-mesenchymal transition (EMT) associated pathway in HCC cells by specifically binding to serine and arginine-rich splicing factor 1 (SRSF1). In summary, our findings illustrated that LINC02580 is a metastasis-suppressing lncRNA in HCC, and provided vital clues of how LINC02580 performs its biological functions. Further, this lncRNA may be a potential target in the prognosis and treatment of HCC.
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13
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Biber G, Ben-Shmuel A, Sabag B, Barda-Saad M. Actin regulators in cancer progression and metastases: From structure and function to cytoskeletal dynamics. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2020; 356:131-196. [PMID: 33066873 DOI: 10.1016/bs.ircmb.2020.05.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The cytoskeleton is a central factor contributing to various hallmarks of cancer. In recent years, there has been increasing evidence demonstrating the involvement of actin regulatory proteins in malignancy, and their dysregulation was shown to predict poor clinical prognosis. Although enhanced cytoskeletal activity is often associated with cancer progression, the expression of several inducers of actin polymerization is remarkably reduced in certain malignancies, and it is not completely clear how these changes promote tumorigenesis and metastases. The complexities involved in cytoskeletal induction of cancer progression therefore pose considerable difficulties for therapeutic intervention; it is not always clear which cytoskeletal regulator should be targeted in order to impede cancer progression, and whether this targeting may inadvertently enhance alternative invasive pathways which can aggravate tumor growth. The entire constellation of cytoskeletal machineries in eukaryotic cells are numerous and complex; the system is comprised of and regulated by hundreds of proteins, which could not be covered in a single review. Therefore, we will focus here on the actin cytoskeleton, which encompasses the biological machinery behind most of the key cellular functions altered in cancer, with specific emphasis on actin nucleating factors and nucleation-promoting factors. Finally, we discuss current therapeutic strategies for cancer which aim to target the cytoskeleton.
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Affiliation(s)
- G Biber
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan, Israel
| | - A Ben-Shmuel
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan, Israel
| | - B Sabag
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan, Israel
| | - M Barda-Saad
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan, Israel.
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14
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Zheng Z, Li X, You H, Zheng X, Ruan X. LncRNA SOCS2-AS1 inhibits progression and metastasis of colorectal cancer through stabilizing SOCS2 and sponging miR-1264. Aging (Albany NY) 2020; 12:10517-10526. [PMID: 32437330 PMCID: PMC7346041 DOI: 10.18632/aging.103276] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 04/20/2020] [Indexed: 12/12/2022]
Abstract
Abnormal expression of long noncoding RNA (lncRNA) is involved in human cancers, including colorectal cancer (CRC). However, their functional mechanism is largely unknown. In this study, we explored the roles of lncRNA SOCS2-AS1 in modulating CRC progression. We showed that SOCS2-AS1 was lowly expressed in CRC tissues and cells. SOCS2-AS1 downregulation predicted a poor prognosis in patients with CRC. SOCS2-AS1 overexpression significantly suppressed CRC cell proliferation, colony formation, EdU incorporation, cell-cycle, migration and invasion in vitro while SOCS2-AS1 knockdown led to an opposite phenotype. SOCS2-AS1 overexpression inhibited CRC growth and metastasis in vivo. Mechanistically, we discovered that SOCS2-AS1 was positively correlated with SOCS2 expression in CRC tissues. SOCS2-AS1 contributes to SOCS2 expression through restraining miR-1264. Additionally, we showed that SOCS2 silencing abrogated the suppressive effects of SOCS2-AS1 overexpression. Taken together, our results identified a novel regulatory loop in which SOCS2-AS1/miR-1264/SOCS2 axis suppresses CRC progression.
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Affiliation(s)
- Zhihai Zheng
- Department of Colorectal and Anal Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Xiaoxiao Li
- Department of Vascular Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Heyi You
- Department of Colorectal and Anal Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Xiaofeng Zheng
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Xiaojiao Ruan
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
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15
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Yu Y, Lu X, Yang C, Yin F. Long Noncoding RNA LINC00173 Contributes to the Growth, Invasiveness and Chemo-Resistance of Colorectal Cancer Through Regulating miR-765/PLP2 Axis. Cancer Manag Res 2020; 12:3363-3369. [PMID: 32494200 PMCID: PMC7229794 DOI: 10.2147/cmar.s251029] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Accepted: 04/23/2020] [Indexed: 12/12/2022] Open
Abstract
Background Long noncoding RNA has been involved in tumorigenesis of colorectal cancer (CRC). This study aimed to illustrate the functions and mechanisms of LINC00173 in CRC progression. Methods The expression of LINC00173 in CRC tissues and cell lines were analyzed via qRT-PCR. Kaplan-Meier curve was used to determine survival rate. Luciferase reporter assay was conducted to evaluate the interactions among LINC00173, miR-765 and PLP2 (proteolipid protein 2). CCK8 assay, EdU assay, transwell assay and xenograft assay were performed to examine the effect of LINC00173/miR-765/PLP2 axis on proliferation, migration and invasion. The Ki67 expression level in tumors tissues was detected through immunofluorescence assay. Results LINC00173 expression was markedly upregulated in CRC tissues and cells. High expression level of LINC00173 in CRC patients was correlated with poor prognosis. LINC00173 knockdown inhibited proliferation, migration, invasion and chemo-resistance of CRC cells in vitro. LINC00173 downregulation delayed CRC growth in vivo. LINC00173 interacted with miR-765 to promote PLP2 expression. Conclusion Our results demonstrated that LINC00173 plays an important oncogenic role in CRC via modulating miR-765/PLP2 axis. And LINC00173 may be a potential prognostic biomarker and therapeutic target for CRC.
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Affiliation(s)
- Yanhui Yu
- Physical Examination Center, The 2nd Affiliated Hospital of Harbin Medical University, Harbin 150081, People's Republic of China
| | - Xiuyun Lu
- Department of Traditional Chinese Medicine, The 2nd Affiliated Hospital of Harbin Medical University, Harbin 150081, People's Republic of China
| | - Chuandong Yang
- Department of Orthopedics, The 4th Affiliated Hospital of Harbin Medical University, Harbin 150001, People's Republic of China
| | - Fengxiang Yin
- Department of Integrated Traditional Chinese Medicine and Western Medicine, Harbin Chest Hospital, Harbin 150056, People's Republic of China
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16
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Chen S, Su T, Zhang Y, Lee A, He J, Ge Q, Wang L, Si J, Zhuo W, Wang L. Fusobacterium nucleatum promotes colorectal cancer metastasis by modulating KRT7-AS/KRT7. Gut Microbes 2020; 11:511-525. [PMID: 31910722 PMCID: PMC7524269 DOI: 10.1080/19490976.2019.1695494] [Citation(s) in RCA: 126] [Impact Index Per Article: 31.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
The enrichment of Fusobacterium nucleatum (Fn) has been identified in CRC patients and associated with worse outcomes. However, whether Fn was involved in the metastasis of CRC was not well determined. Here, we found that the abundance of Fn was significantly increased in CRC patients with lymph nodes metastasis. To further clarify the role of Fn in CRC metastasis, we performed transwell and wound healing assays after incubating CRC cell lines with or without Fn and injected Fn-treated or untreated CRC cells into nude mice via tail vein. The results indicated that Fn infection promoted CRC cells migration in vitro, as well as lung metastasis in vivo. Interestingly, colonization of Fn was detected in metastatic lung lesions of nude mice by fluorescence in situ hybridization. Mechanistically, RNA sequencing and validation study revealed that Fn significantly upregulated the expression of long non-coding RNA Keratin7-antisense (KRT7-AS) and Keratin7 (KRT7) in CRC cells. Importantly, Fn-induced CRC lung metastasis was attenuated by the depletion of KRT7-AS. In addition, KRT7-AS facilitated CRC cells migration by upregulating KRT7. Subsequently, we found that NF-κB signaling pathway was involved in the upregulation of KRT7-AS upon Fn infection. In conclusion, Fn infection upregulated KRT7-AS/KRT7 by activating NF-κB pathway, which promoted CRC cell migration in vitro and metastasis in vivo.
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Affiliation(s)
- Shujie Chen
- Department of Gastroenterology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Zhejiang, China,Institute of Gastroenterology, Zhejiang University, Zhejiang, China
| | - Tingting Su
- Department of Gastroenterology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Zhejiang, China,Institute of Gastroenterology, Zhejiang University, Zhejiang, China
| | - Ying Zhang
- Department of Gastroenterology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Zhejiang, China,Institute of Gastroenterology, Zhejiang University, Zhejiang, China
| | - Allen Lee
- Division of Gastroenterology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA
| | - Jiamin He
- Department of Gastroenterology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Zhejiang, China,Institute of Gastroenterology, Zhejiang University, Zhejiang, China
| | - Qiwei Ge
- Institute of Gastroenterology, Zhejiang University, Zhejiang, China,Department of Gastroenterology, Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang, China
| | - Lan Wang
- Department of Gastroenterology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Zhejiang, China,Institute of Gastroenterology, Zhejiang University, Zhejiang, China
| | - Jianmin Si
- Department of Gastroenterology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Zhejiang, China,Institute of Gastroenterology, Zhejiang University, Zhejiang, China,Jianmin Si Sir Run Run Shaw hospital Zhejiang University, Hangzhou, China
| | - Wei Zhuo
- Institute of Gastroenterology, Zhejiang University, Zhejiang, China,Department of Cell Biology and Program in Molecular Cell Biology, Zhejiang University School of Medicine, Zhejiang, China,Wei Zhuo Department of Cell Biology and Program in Molecular Cell Biology Zhejiang University, Hangzhou, China
| | - Liangjing Wang
- Institute of Gastroenterology, Zhejiang University, Zhejiang, China,Department of Gastroenterology, Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang, China,CONTACT Liangjing Wang Second Affiliated Hospital Zhejiang University, Hangzhou, China
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17
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Luo M, Liang C. LncRNA LINC00483 promotes gastric cancer development through regulating MAPK1 expression by sponging miR-490-3p. Biol Res 2020; 53:14. [PMID: 32293550 PMCID: PMC7158027 DOI: 10.1186/s40659-020-00283-6] [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: 08/05/2019] [Accepted: 04/06/2020] [Indexed: 02/06/2023] Open
Abstract
Background Previous studies have shown that long noncoding RNA (lncRNA) LINC00483 was aberrantly expressed in human cancers, including gastric cancer. However, the regulatory mechanism of this lncRNA in gastric cancer remains largely unknown. The present study aimed to investigate the effect of LINC00483 on gastric cancer development and explore the potential regulatory network of LINC00483/microRNA (miR)-490-3p/mitogen-activated protein kinase 1 (MAPK1). Methods Thirty patients with gastric cancer were recruited for tissues collection. The expression levels of LINC00483, miR-490-3p and MAPK1 were detected by quantitative real-time polymerase chain reaction or western blot. Cell viability, apoptosis, migration and invasion were determined by MTT, flow cytometry, transwell assays and western blot, respectively. The target association between miR-490-3p and LINC00483 or MAPK1 was confirmed by luciferase reporter assay. Xenograft model was established to assess the function of LINC00483 in vivo. Results LINC00483 and MAPK1 levels were increased in gastric cancer tissues and cells. Knockdown of LINC00483 or MAPK1 inhibited cells viability, migration and invasion but promoted apoptosis in gastric cancer cells. Moreover, MAPK1 overexpression attenuated the effect of LINC00483 knockdown on gastric cancer development. LINC00483 could increase MAPK1 expression by competitively sponging miR-490-3p. miR-490-3p overexpression suppressed gastric cancer development, which was abated by introduction of LINC00483. Besides, inhibition of LINC00483 decreased xenograft tumor growth by regulating miR-490-3p/MAPK1 axis. Conclusion Knockdown of LINC00483 inhibited gastric cancer development in vitro and in vivo by increasing miR-490-3p and decreasing MAPK1, elucidating a novel mechanism for understanding the development of gastric cancer.
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Affiliation(s)
- Min Luo
- Departments of Gastroenterology, The Second Xiangya Hospital of Central South University, No. 139 RenMin Road, Changsha, 410011, Hunan, China
| | - Chengbai Liang
- Departments of Gastroenterology, The Second Xiangya Hospital of Central South University, No. 139 RenMin Road, Changsha, 410011, Hunan, China.
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18
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Yan Y, Su M, Qin B. CircHIPK3 promotes colorectal cancer cells proliferation and metastasis via modulating of miR-1207-5p/FMNL2 signal. Biochem Biophys Res Commun 2020; 524:839-846. [PMID: 32046858 DOI: 10.1016/j.bbrc.2020.01.055] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Accepted: 01/11/2020] [Indexed: 12/14/2022]
Abstract
Increasing evidences demonstrate that circular RNAs (circRNAs) are extensively implicated in various cancers including colorectal cancer (CRC). In the present study, we found that circRNA HIPK3 (circPIK3) was upregulated in CRC. We identified that circHIPK3 was closely related with unfavorable clinicopathological features in patients with CRC. Functional transwell assay and proliferation assay indicated that circHIPK3 served as an oncogene and promoted CRC cells migration, invasion and proliferation. Meanwhile, we found that formin like 2 (FMNL2) was a key downstream molecule in circHIPK3-induced metastasis and proliferation in CRC cells. We further verified that circHIPK3 was mainly located at cytoplasm through an immunofluorescence assay. An online bioinformatics screening and a GEO datasets analysis showed that microRNA 1207-5p (miR-1207-5p) was downregulated in CRC. Also, we found that miR-1207-5p shared a similar miR-1207-5p response elements (MREs-1207-5p). Meanwhile, we showed that miR-1207-5p suppressed CRC cells migration, invasion and proliferation via directly targeting of FMNL2. Even further, via a constructed luciferase assay, we indicated that circHIPK3 was another target of miR-1207-5p. Functionally, we proved that circHIPK3 enhanced FMNL2 mediated promotion of migration, invasion and proliferation by sponging of miR-1207-5p in CRC cells. In summary, the outcomes of this study illustrated that circHIPK3 promoted CRC cells migration, invasion and proliferation modulating of FMNL2 by sponging of miR-1207-5p. Our findings indicated that circHIPK3/miR-1207-5p/FMNL2 axis might be a new strategy in molecular treatment of CRC.
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Affiliation(s)
- Yan Yan
- Department of Medical Oncology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, PR China.
| | - Meng Su
- Department of Medical Oncology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, PR China.
| | - Baoli Qin
- Department of Medical Oncology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, PR China.
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He Q, Long J, Yin Y, Li Y, Lei X, Li Z, Zhu W. Emerging Roles of lncRNAs in the Formation and Progression of Colorectal Cancer. Front Oncol 2020; 9:1542. [PMID: 32010629 PMCID: PMC6978842 DOI: 10.3389/fonc.2019.01542] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Accepted: 12/19/2019] [Indexed: 12/12/2022] Open
Abstract
Colorectal cancer (CRC) is the primary cause of cancer-related death worldwide; however, specific and sensitive tools for the early diagnosis and targeted therapy of CRC are currently lacking. High-throughput sequencing technology revealed that gene expression of long-chain non-coding RNAs (lncRNAs) in a number of cancers directly or indirectly interferes with various biological processes. Emerging evidence suggests that lncRNAs regulate target genes and play an important role in the biological processes of malignancies, including CRC. Many carcinostatic/oncogenic lncRNAs have been identified as biomarkers for metastasis and prognosis in CRC; hence, they serve as therapeutic tools. In this article, we systematically review the literature on the disordered lncRNAs in CRC from four aspects: DNA transcription, RNA level regulation, post-translational level, and the translation of lncRNAs into polypeptides. Subsequently, we analyze the mechanism through which lncRNAs participate in the biological process of CRC. Finally, we discuss the application and prospects of these lncRNAs in CRC.
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Affiliation(s)
- Qinglian He
- Department of Pathology, Guangdong Medical University, Dongguan, China
| | - Jiali Long
- Department of Pathology, Guangdong Medical University, Dongguan, China
| | - Yuting Yin
- Department of Pathology, Guangdong Medical University, Dongguan, China
| | - Yuling Li
- Department of Pathology, Dongguan Hospital of Southern Medical University, Dongguan, China
| | - Xue Lei
- Department of Pathology, Guangdong Medical University, Dongguan, China
| | - Ziqi Li
- Department of Pathology, Guangdong Medical University, Dongguan, China
| | - Wei Zhu
- Department of Pathology, Guangdong Medical University, Dongguan, China
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20
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Yang S, Liu T, Sun Y, Liang X. The long noncoding RNA LINC00483 promotes lung adenocarcinoma progression by sponging miR-204-3p. Cell Mol Biol Lett 2019; 24:70. [PMID: 31889958 PMCID: PMC6916218 DOI: 10.1186/s11658-019-0192-7] [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: 07/22/2019] [Accepted: 11/22/2019] [Indexed: 12/12/2022] Open
Abstract
Background The expression of the long noncoding RNA LINC00483 is upregulated in lung adenocarcinoma (LUAD). However, its role in the progression of LUAD and the underlying mechanisms remain elusive. Methods The expressions of LINC00483 and miR-204-3p were determined using quantitative real-time PCR. The correlation between the clinicopathological characteristics of LUAD patients and LINC00483 expression was analyzed using Pearson’s χ2 test. A549 and PC-9 cells were transfected with small interfering RNA (siRNA) that specially targeting LINC00483 to assess the impact of its knockdown. Cell proliferation was assessed using the Cell Counting Kit-8 and clone forming assays. Cell migration and cell invasion were evaluated using a transwell assay. The levels of Snail, E-cadherin, N-cadherin and ETS1 proteins were determined via western blotting. The interaction between LINC00483 and miR-204-3p was analyzed using dual-luciferase, fluorescence in situ hybridization and RNA immunoprecipitation. Results LINC00483 was upregulated in LUAD tissues and cell lines. Higher LINC00483 levels closely correlated to shorter survival times, advanced TNM stage, larger tumor size and positive lymph node metastasis. Cell proliferation, migration and invasion were suppressed after LINC00483 knockdown. LINC00483 mainly localized in the cytoplasm, where it acted as a sponge of miR-204-3p. ETS1 was validated as a downstream target of miR-204-3p and is thus regulated by LINC00483. Conclusion This study demonstrated that LINC00483 facilitates the proliferation, migration and invasion of LUAD cells by acting as a sponge for miR-204-3p, which in turn regulates ETS1.
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Affiliation(s)
- Shengzhuang Yang
- Department of Chest Cardiovascular Surgery, The Second Affiliated Hospital of Guangxi Medical University, 166 University East Road, Xixiangtang District, Nanning City, 530007 Guangxi Province China
| | - Tao Liu
- Department of Chest Cardiovascular Surgery, The Second Affiliated Hospital of Guangxi Medical University, 166 University East Road, Xixiangtang District, Nanning City, 530007 Guangxi Province China
| | - Yu Sun
- Department of Chest Cardiovascular Surgery, The Second Affiliated Hospital of Guangxi Medical University, 166 University East Road, Xixiangtang District, Nanning City, 530007 Guangxi Province China
| | - Xiangsen Liang
- Department of Chest Cardiovascular Surgery, The Second Affiliated Hospital of Guangxi Medical University, 166 University East Road, Xixiangtang District, Nanning City, 530007 Guangxi Province China
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21
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Li X, Yu M, Yang C. YY1-mediated overexpression of long noncoding RNA MCM3AP-AS1 accelerates angiogenesis and progression in lung cancer by targeting miR-340-5p/KPNA4 axis. J Cell Biochem 2019; 121:2258-2267. [PMID: 31693222 DOI: 10.1002/jcb.29448] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Accepted: 10/10/2019] [Indexed: 12/24/2022]
Abstract
Lung cancer is famous as an aggressive malignant tumor and is the main cause of cancer-associated mortality globally. Tumor angiogenesis is a vital part in cancer, which influences cell proliferation and metastasis. Increasing studies have claimed that long noncoding RNAs (lncRNAs) were involved in the progression of several cancers. Based on previous studies, this study focused on the role and mechanism of lncRNA MCM3AP antisense RNA 1 (MCM3AP-AS1) in lung cancer. At first, MCM3AP-AS1 expression was found to be elevated in lung cancer cells. Depletion of MCM3AP-AS1 repressed cell proliferation, migration, and angiogenesis in lung cancer cells. YY1 was confirmed to mediate MCM3AP-AS1 transcription in lung cancer cells. Moreover, the molecular mechanism investigation revealed that MCM3AP-AS1 could sponge miR-340-5p and elevate KPNA4 expression. On the basis of rescue assays, we identified that the overexpression of KPNA4 partly counteracted the suppressed effect of MCM3AP-AS1 knockdown on angiogenesis and progression in lung cancer cells. Conclusively, the YY1-mediated overexpression of MCM3AP-AS1 accelerated angiogenesis and progression in lung cancer by targeting miR-340-5p/KPNA4 axis, which highlighted the possibility of MCM3AP-AS1 as a promising therapeutic target for lung cancer.
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Affiliation(s)
- Xuemei Li
- Department of Infectious Diseases, Ankang Central Hospital, Ankang, China
| | - Mei Yu
- Department of Infectious Diseases, Ankang Central Hospital, Ankang, China
| | - Caiyong Yang
- Department of Infectious Diseases, Ankang Central Hospital, Ankang, China
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22
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Hu P, Zhou G, Zhang X, Song G, Zhan L, Cao Y. Long non-coding RNA Linc00483 accelerated tumorigenesis of cervical cancer by regulating miR-508-3p/RGS17 axis. Life Sci 2019; 234:116789. [DOI: 10.1016/j.lfs.2019.116789] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Accepted: 08/23/2019] [Indexed: 12/25/2022]
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23
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The long non-coding RNA SNHG1 promotes glioma progression by competitively binding to miR-194 to regulate PHLDA1 expression. Cell Death Dis 2019; 10:463. [PMID: 31189920 PMCID: PMC6561933 DOI: 10.1038/s41419-019-1698-7] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 05/10/2019] [Accepted: 05/28/2019] [Indexed: 12/28/2022]
Abstract
Long non-coding RNAs (lncRNAs) play a vital role in tumourigenesis, including that of glioma. Small nucleolar RNA host gene 1 (SNHG1) is a relatively novel lncRNA that is involved in the development of multiple human tumours. However, its underlying molecular mechanism in glioma has not been completely clarified. In this study, we show that SNHG1 is overexpressed in glioma tissues and cell lines. A series of functional assays suggested that SNHG1 promotes glioma progression in vitro and in vivo. Next, through online databases, a luciferase reporter assay and an RNA pull-down assay, we confirmed that SNHG1 functions as a sponge for miR-194, which acts as a suppressor in glioma. We also verified that pleckstrin homology like domain family A, member 1 (PHLDA1) is the functional target of miR-194. Moreover, rescue experiments demonstrated that SNHG1 regulates PHLDA1 expression in a miR-194-dependent manner. Taken together, our study shows that SNHG1 promotes glioma progression by competitively binding to miR-194 to regulate PHLDA1 expression, which may provide a novel therapeutic strategy for glioma.
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Tang XJ, Wang W, Hann SS. Interactions among lncRNAs, miRNAs and mRNA in colorectal cancer. Biochimie 2019; 163:58-72. [PMID: 31082429 DOI: 10.1016/j.biochi.2019.05.010] [Citation(s) in RCA: 74] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Accepted: 05/07/2019] [Indexed: 02/06/2023]
Abstract
Long non-coding RNAs (lncRNAs) are longer than 200 nts non-coding transcripts and have recently emerged as one of the largest and significantly diverse RNA families whereas microRNAs (miRNAs) are highly conserved short single-stranded ncRNAs (∼18-22 nucleotides). As families of small and long evolutionarily conserved ncRNAs, lncRNAs activate and repress genes via a variety of mechanisms at both transcriptional and translational levels, while miRNAs regulate protein-coding gene expression mainly through mRNA degradation or silencing, These ncRNAs have been proved to be involved in multiple biological functions, such as proliferation, differentiation, migration, angiogenesis and apoptosis. Today, while majority of studies have focused on defining the regulatory functions of lncRNAs and miRNAs, limited information have now available for the mutual regulations of lncRNAs, miRNAs and mRNA. Thus, the underlying molecular mechanisms, in particularly the interactions among lncRNAs, miRNAs and mRNA in development, growth, metastasis and therapeutic potential of cancer still remain obscure. Colorectal cancer (CRC) is known as the third most common and fourth leading cancer death worldwide. Increasing evidence showed the close correlations among aberrant expressions of lncRNAs, miRNAs and the occurrence, development of CRC. This review summarize the potential links among these RNAs in following three areas: 1, The biogenesis and roles of miRNAs in CRC; 2, The biogenesis and functions of lncRNAs in CRC; 3, The interactions among lncRNAs, miRNAs and mRNA in tumorigensis, growth, progression, EMT formation, chemoradiotherapy resistance, and therapeutic potential in CRC. We believe that identifying diverging lncRNAs, miRNAs and relevant genes, their interactions and complex molecular regulatory networks will provide important clues for understanding the mechanism and developing novel diagnostic and therapeutic strategies for CRC. Further efforts are warranted to bring the promise of regulating their activities into clinical utilities.
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Affiliation(s)
- Xiao Juan Tang
- Laboratory of Tumor Biology, The Second Clinical Collage of Guangzhou University of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510120, China
| | - Wei Wang
- Department of Gastrointestinal Surgery, The Second Clinical Collage of Guangzhou University of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510120, China; Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine Syndrome, The Second Clinical Collage of Guangzhou University of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510120, China.
| | - Swei Sunny Hann
- Laboratory of Tumor Biology, The Second Clinical Collage of Guangzhou University of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510120, China; Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine Syndrome, The Second Clinical Collage of Guangzhou University of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510120, China.
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Ji D, Wang Y, Li H, Sun B, Luo X. Long non-coding RNA LINC00461/miR-149-5p/LRIG2 axis regulates hepatocellular carcinoma progression. Biochem Biophys Res Commun 2019; 512:176-181. [PMID: 30879766 DOI: 10.1016/j.bbrc.2019.03.049] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Accepted: 03/08/2019] [Indexed: 01/30/2023]
Abstract
Long noncoding RNAs (lncRNAs) have been acknowledged as vital regulators in tumorigenesis of human cancers, including hepatocellular carcinoma (HCC). LINC00461 has been found to promote progression of glioma and breast cancer. Nevertheless, the function of LINC00461 in HCC is still unknown. Here, we found that LINC00461 was upregulated in HCC tissues and positively correlated with advanced stage and metastasis. Furthermore, LINC00461 overexpression in HCC patients predicts unfavorable prognosis. Loss-of-function assays showed that LINC00461 silencing suppressed the proliferation, migration and invasion of HCC cells in vitro, and impeded tumor growth in vivo. Mechanistically, LINC00461 inversely regulates miR-149-5p abundance in HCC. Further investigation indicated that LINC00461 was a competing endogenous RNA (ceRNA) by directly sponging miR-149-5p in HCC cells. Moreover, LRIG2 was identified as the downstream target of miR-149-5p and its expression was regulated by LINC00461/miR-149-5p axis. Restoration of LRIG2 reversed LINC00461 knockdown attenuated HCC cell proliferation, migration and invasion. In summary, our findings revealed that LINC00461 is an oncogene in HCC through regulating miR-149-5p/LRIG2 pathway.
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Affiliation(s)
- Degang Ji
- Department of Hepatobiliary Pancreatic Surgery, China-Japan Union Hospital of Jilin University, Changchun, 130033, China
| | - Yue Wang
- Department of Pharmacology and Toxicology, Wright State University, Fairborn, OH, 45435, USA
| | - Hang Li
- Department of Hepatobiliary Pancreatic Surgery, China-Japan Union Hospital of Jilin University, Changchun, 130033, China
| | - Baozhen Sun
- Department of Hepatobiliary Pancreatic Surgery, China-Japan Union Hospital of Jilin University, Changchun, 130033, China
| | - Xiao Luo
- Department of Breast Surgery, China-Japan Union Hospital of Jilin University, Changchun, 130033, China.
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