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Khalafizadeh A, Hashemizadegan SD, Shokri F, Bakhshinejad B, Jabbari K, Motavaf M, Babashah S. Competitive endogenous RNA networks: Decoding the role of long non-coding RNAs and circular RNAs in colorectal cancer chemoresistance. J Cell Mol Med 2024; 28:e18197. [PMID: 38506091 PMCID: PMC10951891 DOI: 10.1111/jcmm.18197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 11/17/2023] [Accepted: 02/04/2024] [Indexed: 03/21/2024] Open
Abstract
Colorectal cancer (CRC) is recognized as one of the most common gastrointestinal malignancies across the globe. Despite significant progress in designing novel treatments for CRC, there is a pressing need for more effective therapeutic approaches. Unfortunately, many patients undergoing chemotherapy develop drug resistance, posing a significant challenge for cancer treatment. Non-coding RNAs (ncRNAs) have been found to play crucial roles in CRC development and its response to chemotherapy. However, there are still gaps in our understanding of interactions among various ncRNAs, such as long non-coding RNAs (lncRNAs), circular RNAs (circRNAs) and microRNAs (miRNAs). These ncRNAs can act as either oncogenes or tumour suppressors, affecting numerous biological functions in different cancers including CRC. A class of ncRNA molecules known as competitive endogenous RNAs (ceRNAs) has emerged as a key player in various cellular processes. These molecules form networks through lncRNA/miRNA/mRNA and circRNA/miRNA/mRNA interactions. In CRC, dysregulation of ceRNA networks has been observed across various cellular processes, including proliferation, apoptosis and angiogenesis. These dysregulations are believed to play a significant role in the progression of CRC and, in certain instances, may contribute to the development of chemoresistance. Enriching our knowledge of these dysregulations holds promise for advancing the field of diagnostic and therapeutic modalities for CRC. In this review, we discuss lncRNA- and circRNA-associated ceRNA networks implicated in the emergence and advancement of drug resistance in colorectal carcinogenesis.
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Affiliation(s)
- Ali Khalafizadeh
- Department of Molecular Genetics, Faculty of Biological SciencesTarbiat Modares UniversityTehranIran
| | | | - Fatemeh Shokri
- Research and Development Center of BiotechnologyTarbiat Modares UniversityTehranIran
| | - Babak Bakhshinejad
- Department of Molecular Genetics, Faculty of Biological SciencesTarbiat Modares UniversityTehranIran
| | - Keyvan Jabbari
- Department of Molecular Genetics, Faculty of Biological SciencesTarbiat Modares UniversityTehranIran
| | - Mahsa Motavaf
- Department of Molecular Genetics, Faculty of Biological SciencesTarbiat Modares UniversityTehranIran
| | - Sadegh Babashah
- Department of Molecular Genetics, Faculty of Biological SciencesTarbiat Modares UniversityTehranIran
- Research and Development Center of BiotechnologyTarbiat Modares UniversityTehranIran
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Peng L, Wang Y, Luo J, Liu Y, Wang F. miR-128-3p increases the radiosensitivity in nasopharyngeal carcinoma via regulating vascular endothelial growth factor C. Pathol Res Pract 2023; 249:154768. [PMID: 37639953 DOI: 10.1016/j.prp.2023.154768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 06/26/2023] [Accepted: 08/13/2023] [Indexed: 08/31/2023]
Abstract
PURPOSE This study aims to investigate the role of miR-128-3p in the radiosensitivity of nasopharyngeal carcinoma (NPC) and its underlying mechanism. METHODS 6-10B cells were transfected with miR-128-3p mimic, pcDNA-VEGFC, and the corresponding negative control. C666-1 cells were transfected with miR-128-3p inhibitor, sh-VEGFC, and the corresponding negative control. RT-qPCR was used to determine the miR-128-3p and VEGFC mRNA expression level. Dual-luciferase assay was used to investigate the relationship between miR-128-3p and VEGFC. The protein levels of VEGFC, H2AX, γ-H2AX, p-P50, p-P65, p-IκB, and the apoptosis markers Bcl-2, caspase3, caspase9, and Bax were detected by Western blot. The proliferation activity was detected by CCK-8, and cell DNA damage was assessed by comet assay. The apoptosis rate was detected by flow cytometry. The growth of NPC in vivo was observed in mice through xenotransplantation. TUNEL staining was used to detect cell apoptosis in tumor tissues. RESULTS miR-128-3p was targeted and was negatively regulated with VEGFC. Overexpression of miR-128-3p or knockdown VEGFC significantly inhibited the proliferation of 6-10B and C666-1 cells, induced DNA damage and apoptosis and promoted the radiosensitivity of cells. Knocking down miR-128-3p or up-regulated VEGFC promoted the proliferation of C666-1 and 6-10B cells, reduced cell DNA damage and apoptosis, and enhanced cell resistance to radiotherapy. Overexpression of miR-128-3p reversed the effect of VEGFC on 6-10B cells and inhibited P50/P65/IKB signal pathway. In vivo, experiments in mice confirmed that miR-128-3p significantly inhibited NPC proliferation and promoted DNA damage and apoptosis by targeting VEGFC. CONCLUSION The miR-128-3p pathway is a novel therapy target to overcome radiation resistance in NPC.
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Affiliation(s)
- Lisha Peng
- Department of Radiotherapy, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650032, China
| | - Yong Wang
- Department of Radiotherapy, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650032, China
| | - Jie Luo
- Department of Radiotherapy, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650032, China
| | - Yan Liu
- Department of Radiotherapy, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650032, China
| | - Feng Wang
- Department of Radiotherapy, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650032, China.
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A Four-Gene Signature Associated with Radioresistance in Head and Neck Squamous Cell Carcinoma Identified by Text Mining and Data Analysis. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2022; 2022:5693806. [PMID: 36203528 PMCID: PMC9532131 DOI: 10.1155/2022/5693806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 09/12/2022] [Indexed: 12/24/2022]
Abstract
Purpose Head and neck squamous cell carcinoma (HNSCC) is the sixth leading cancer globally, and radiotherapy plays a crucial part in its treatment. This study was designed to identify potential genes related to radiation resistance in HNSCC. Method We first used text mining to obtain common genes related to radiotherapy resistance and HNSCC in published articles. Functional enrichment analyses were conducted to identify the significantly enriched pathways and genes. Protein and protein interactions were performed, and the most significant gene modules were determined; then, genes in the gene modules were validated at transcriptional levels and overall survival. Gene set variation analysis (GSVA) score was calculated, and the association between GSVA score and survival/pathway was estimated. Immune cell infiltration, methylation, and genetic alteration analysis of these genes was conducted in HNSCC patients. Finally, potential sensitive anticancer drugs related to target genes were obtained. Result We identified 583 common genes through text mining. After further validation, a four-gene signature (EPHB2, SPP1, SERPINE1, and VEGFC) was constructed. The patients with higher GSVA scores have a worse prognosis than those with lower GSVA scores. Differences in methylation of these four genes in HNSCC tumor tissue and normal tissue were compared, with higher methylation levels of EBPH2 and SPP1 in normal tissue and higher methylation levels of SERPINE1 in the tumor. Immune cell infiltration revealed that the increased expression of these genes was closely related to the infiltration level of CD4+ T cell, neutrophil, macrophage, and dendritic cell. Thirty drugs, including 22 positively and eight negatively correlated drugs that most correlated with related genes, were available for treating HNSCC. Conclusion In this study, we identified four potential genes as well as corresponding drugs that might be related to radioresistance in HNSCC patients. These candidate genes may provide a promising avenue to further elevate radiotherapy efficacy.
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Wang S, Dong L, Ma L, Yang S, Zheng Y, Zhang J, Wu C, Zhao Y, Hou Y, Li H, Wang T. SQLE facilitates the pancreatic cancer progression via the lncRNA-TTN-AS1/miR-133b/SQLE axis. J Cell Mol Med 2022; 26:3636-3647. [PMID: 35638462 PMCID: PMC9258714 DOI: 10.1111/jcmm.17347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 03/24/2022] [Accepted: 04/05/2022] [Indexed: 02/04/2023] Open
Abstract
Studies have shown that SQLE is highly expressed in a variety of tumours and promotes tumour progression. However, the role of SQLE in pancreatic cancer (PC) has not been reported. Here, we aim to study the role and molecular mechanism of SQLE in PC. Immunohistochemistry and functional experiments showed that SQLE was highly expressed in PC tissues and promoted the proliferation and invasion of PC cells. Terbinafine, an inhibitor of SQLE, inhibited this effect. In order to further study the upstream mechanism that regulates SQLE, we used bioinformatics technology to lock miR-133b and lncRNA-TTN-AS. In situ hybridization was used to detect the expression of miR-133b and lncRNA-TTN-AS1 in PC tissues. The luciferase reporter gene experiment was used to confirm the binding of miR-133b and lncRNA-TTN-AS1. The results showed that miR-133b was down-regulated in PC tissues and negatively correlated with the expression of SQLE. LncRNA-TTN-AS1 was upregulated in pancreatic cancer tissues and positively correlated with the expression of SQLE. Luciferase gene reporter gene analysis confirmed lncRNA-TTN-AS1 directly binded to miR-133b. Therefore, we propose that targeting the lncRNA-TTN-AS1/miR-133b/SQLE axis is expected to provide new ideas for the clinical treatment of PC patients.
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Affiliation(s)
- Shuhui Wang
- Department of Digestive Disease and Gastrointestinal Motility Research RoomThe Second Affiliated Hospital of Xi’an Jiaotong UniversityXi’anChina
- Department of Infectious DiseasesShenzhen Nanshan District Shekou People’s HospitalShenzhenChina
| | - Lei Dong
- Department of Digestive Disease and Gastrointestinal Motility Research RoomThe Second Affiliated Hospital of Xi’an Jiaotong UniversityXi’anChina
| | - Lin Ma
- Department of GastroenterologyShaanxi Provincial People’s HospitalXi’anChina
| | - Suzhen Yang
- Department of Digestive Disease and Gastrointestinal Motility Research RoomThe Second Affiliated Hospital of Xi’an Jiaotong UniversityXi’anChina
| | - Ying Zheng
- Department of Digestive Disease and Gastrointestinal Motility Research RoomThe Second Affiliated Hospital of Xi’an Jiaotong UniversityXi’anChina
| | - Jing Zhang
- Department of Kidney TransplantationNephropathy HospitalThe First Affiliated Hospital of Xi'an Jiaotong UniversityXi’anChina
| | - Chuanghong Wu
- Department of Infectious DiseasesShenzhen Nanshan District Shekou People’s HospitalShenzhenChina
| | - Yidi Zhao
- Emergency DepartmentThe Second Affiliated Hospital of Xi’an Jiaotong UniversityXi’anChina
| | - Yangfan Hou
- Department of Respiratory and Critical Care MedicineThe Second Affiliated Hospital of Xi’an Jiaotong UniversityXi’anChina
| | - Hong Li
- Department of Digestive Disease and Gastrointestinal Motility Research RoomThe Second Affiliated Hospital of Xi’an Jiaotong UniversityXi’anChina
| | - Ting Wang
- Department of Digestive Disease and Gastrointestinal Motility Research RoomThe Second Affiliated Hospital of Xi’an Jiaotong UniversityXi’anChina
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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: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Angius A, Scanu AM, Arru C, Muroni MR, Rallo V, Deiana G, Ninniri MC, Carru C, Porcu A, Pira G, Uva P, Cossu-Rocca P, De Miglio MR. Portrait of Cancer Stem Cells on Colorectal Cancer: Molecular Biomarkers, Signaling Pathways and miRNAome. Int J Mol Sci 2021; 22:1603. [PMID: 33562604 PMCID: PMC7915330 DOI: 10.3390/ijms22041603] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 02/02/2021] [Accepted: 02/02/2021] [Indexed: 12/24/2022] Open
Abstract
Colorectal cancer (CRC) is a leading cause of cancer death worldwide, and about 20% is metastatic at diagnosis and untreatable. Increasing evidence suggests that the heterogeneous nature of CRC is related to colorectal cancer stem cells (CCSCs), a small cells population with stemness behaviors and responsible for tumor progression, recurrence, and therapy resistance. Growing knowledge of stem cells (SCs) biology has rapidly improved uncovering the molecular mechanisms and possible crosstalk/feedback loops between signaling pathways that directly influence intestinal homeostasis and tumorigenesis. The generation of CCSCs is probably connected to genetic changes in members of signaling pathways, which control self-renewal and pluripotency in SCs and then establish function and phenotype of CCSCs. Particularly, various deregulated CCSC-related miRNAs have been reported to modulate stemness features, controlling CCSCs functions such as regulation of cell cycle genes expression, epithelial-mesenchymal transition, metastasization, and drug-resistance mechanisms. Primarily, CCSC-related miRNAs work by regulating mainly signal pathways known to be involved in CCSCs biology. This review intends to summarize the epigenetic findings linked to miRNAome in the maintenance and regulation of CCSCs, including their relationships with different signaling pathways, which should help to identify specific diagnostic, prognostic, and predictive biomarkers for CRC, but also develop innovative CCSCs-targeted therapies.
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Affiliation(s)
- Andrea Angius
- Institute of Genetic and Biomedical Research (IRGB), CNR, Cittadella Universitaria di Cagliari, 09042 Monserrato, Italy;
| | - Antonio Mario Scanu
- Department of Medical, Surgical and Experimental Sciences, University of Sassari, Via P. Manzella, 4, 07100 Sassari, Italy; (A.M.S.); (M.R.M.); (G.D.); (M.C.N.); (A.P.); (P.C.-R.)
| | - Caterina Arru
- Department of Biomedical Sciences, University of Sassari, 07100 Sassari, Italy; (C.A.); (C.C.); (G.P.)
| | - Maria Rosaria Muroni
- Department of Medical, Surgical and Experimental Sciences, University of Sassari, Via P. Manzella, 4, 07100 Sassari, Italy; (A.M.S.); (M.R.M.); (G.D.); (M.C.N.); (A.P.); (P.C.-R.)
| | - Vincenzo Rallo
- Institute of Genetic and Biomedical Research (IRGB), CNR, Cittadella Universitaria di Cagliari, 09042 Monserrato, Italy;
| | - Giulia Deiana
- Department of Medical, Surgical and Experimental Sciences, University of Sassari, Via P. Manzella, 4, 07100 Sassari, Italy; (A.M.S.); (M.R.M.); (G.D.); (M.C.N.); (A.P.); (P.C.-R.)
| | - Maria Chiara Ninniri
- Department of Medical, Surgical and Experimental Sciences, University of Sassari, Via P. Manzella, 4, 07100 Sassari, Italy; (A.M.S.); (M.R.M.); (G.D.); (M.C.N.); (A.P.); (P.C.-R.)
| | - Ciriaco Carru
- Department of Biomedical Sciences, University of Sassari, 07100 Sassari, Italy; (C.A.); (C.C.); (G.P.)
| | - Alberto Porcu
- Department of Medical, Surgical and Experimental Sciences, University of Sassari, Via P. Manzella, 4, 07100 Sassari, Italy; (A.M.S.); (M.R.M.); (G.D.); (M.C.N.); (A.P.); (P.C.-R.)
| | - Giovanna Pira
- Department of Biomedical Sciences, University of Sassari, 07100 Sassari, Italy; (C.A.); (C.C.); (G.P.)
| | - Paolo Uva
- IRCCS G. Gaslini, 16147 Genoa, Italy;
| | - Paolo Cossu-Rocca
- Department of Medical, Surgical and Experimental Sciences, University of Sassari, Via P. Manzella, 4, 07100 Sassari, Italy; (A.M.S.); (M.R.M.); (G.D.); (M.C.N.); (A.P.); (P.C.-R.)
- Department of Diagnostic Services, “Giovanni Paolo II” Hospital, ASSL Olbia-ATS Sardegna, 07026 Olbia, Italy
| | - Maria Rosaria De Miglio
- Department of Medical, Surgical and Experimental Sciences, University of Sassari, Via P. Manzella, 4, 07100 Sassari, Italy; (A.M.S.); (M.R.M.); (G.D.); (M.C.N.); (A.P.); (P.C.-R.)
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Zhang J, Piao HY, Wang Y, Lou MY, Guo S, Zhao Y. Development and validation of a three-long noncoding RNA signature for predicting prognosis of patients with gastric cancer. World J Gastroenterol 2020; 26:6929-6944. [PMID: 33311941 PMCID: PMC7701940 DOI: 10.3748/wjg.v26.i44.6929] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 08/06/2020] [Accepted: 09/17/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Gastric cancer (GC) is one of the most frequently diagnosed gastrointestinal cancers throughout the world. Novel prognostic biomarkers are required to predict the prognosis of GC.
AIM To identify a multi-long noncoding RNA (lncRNA) prognostic model for GC.
METHODS Transcriptome data and clinical data were downloaded from The Cancer Genome Atlas. COX and least absolute shrinkage and selection operator regression analyses were performed to screen for prognosis associated lncRNAs. Receiver operating characteristic curve and Kaplan-Meier survival analyses were applied to evaluate the effectiveness of the model.
RESULTS The prediction model was established based on the expression of AC007991.4, AC079385.3, and AL109615.2 Based on the model, GC patients were divided into “high risk” and “low risk” groups to compare the differences in survival. The model was re-evaluated with the clinical data of our center.
CONCLUSION The 3-lncRNA combination model is an independent prognostic factor for GC.
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Affiliation(s)
- Jun Zhang
- Department of Gastric Cancer, Liaoning Province Cancer Hospital and Institute (Cancer Hospital of China Medical University), Shenyang 110042, Liaoning Province, China
| | - Hai-Yan Piao
- Medical Oncology Department of Gastrointestinal Cancer, Liaoning Province Cancer Hospital and Institute (Cancer Hospital of China Medical University), Shenyang 110042, Liaoning Province, China
| | - Yue Wang
- Department of Gastric Cancer, Liaoning Province Cancer Hospital and Institute (Cancer Hospital of China Medical University), Shenyang 110042, Liaoning Province, China
| | - Mei-Yue Lou
- Department of Gastroenterological Surgery, Kumamoto University, Graduate School of Medical Sciences, Kumamoto 860-8556, Kumamoto, Japan
| | - Shuai Guo
- Department of Gastric Cancer, Liaoning Province Cancer Hospital and Institute (Cancer Hospital of China Medical University), Shenyang 110042, Liaoning Province, China
| | - Yan Zhao
- Department of Gastric Cancer, Liaoning Province Cancer Hospital and Institute (Cancer Hospital of China Medical University), Shenyang 110042, Liaoning Province, China
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Target Enrichment Enables the Discovery of lncRNAs with Somatic Mutations or Altered Expression in Paraffin-Embedded Colorectal Cancer Samples. Cancers (Basel) 2020; 12:cancers12102844. [PMID: 33019720 PMCID: PMC7650602 DOI: 10.3390/cancers12102844] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 09/20/2020] [Accepted: 09/23/2020] [Indexed: 12/25/2022] Open
Abstract
Simple Summary Alterations in long noncoding RNAs and their mutations have been increasingly recognized in tumorogenesis and cancer progression awakening especial interest as potential novel cancer biomarkers and therapeutic targets. The use of adjuvant chemotherapy in stage II colorectal cancer patients is challenging, and new biomarkers are required to identify patients with high probability of relapse. We focused on translational potential of non-coding RNAs in colorectal cancer. In this study, we aim to validate a new tool which couples target enrichment and RNAseq for transcriptomics studies of lncRNAs in formalin-fixed paraffin embedded (FFPE) tissue samples. Our results show that this new approach efficiently detects lncRNAs and differences in their expression between healthy and tumor FFPE tissues, as well as somatic mutations in expressed lncRNAs, identifying novel lncRNAs as potential candidates for colorectal cancer. This new approach could represent a promising avenue that would reduce costs and enable more efficient translational research. Abstract Long non-coding RNAs (lncRNAs) play important roles in cancer and are potential new biomarkers or targets for therapy. However, given the low and tissue-specific expression of lncRNAs, linking these molecules to particular cancer types and processes through transcriptional profiling is challenging. Formalin-fixed, paraffin-embedded (FFPE) tissues are abundant resources for research but are prone to nucleic acid degradation, thereby complicating the study of lncRNAs. Here, we designed and validated a probe-based enrichment strategy to efficiently profile lncRNA expression in FFPE samples, and we applied it for the detection of lncRNAs associated with colorectal cancer (CRC). Our approach efficiently enriched targeted lncRNAs from FFPE samples, while preserving their relative abundance, and enabled the detection of tumor-specific mutations. We identified 379 lncRNAs differentially expressed between CRC tumors and matched healthy tissues and found tumor-specific lncRNA variants. Our results show that numerous lncRNAs are differentially expressed and/or accumulate variants in CRC tumors, thereby suggesting a role in CRC progression. More generally, our approach unlocks the study of lncRNAs in FFPE samples, thus enabling the retrospective use of abundant, well documented material available in hospital biobanks.
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Pidíkova P, Reis R, Herichova I. miRNA Clusters with Down-Regulated Expression in Human Colorectal Cancer and Their Regulation. Int J Mol Sci 2020; 21:E4633. [PMID: 32610706 PMCID: PMC7369991 DOI: 10.3390/ijms21134633] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 06/24/2020] [Accepted: 06/27/2020] [Indexed: 02/07/2023] Open
Abstract
Regulation of microRNA (miRNA) expression has been extensively studied with respect to colorectal cancer (CRC), since CRC is one of the leading causes of cancer mortality worldwide. Transcriptional control of miRNAs creating clusters can be, to some extent, estimated from cluster position on a chromosome. Levels of miRNAs are also controlled by miRNAs "sponging" by long non-coding RNAs (ncRNAs). Both types of miRNA regulation strongly influence their function. We focused on clusters of miRNAs found to be down-regulated in CRC, containing miR-1, let-7, miR-15, miR-16, miR-99, miR-100, miR-125, miR-133, miR-143, miR-145, miR-192, miR-194, miR-195, miR-206, miR-215, miR-302, miR-367 and miR-497 and analysed their genome position, regulation and functions. Only evidence provided with the use of CRC in vivo and/or in vitro models was taken into consideration. Comprehensive research revealed that down-regulated miRNA clusters in CRC are mostly located in a gene intron and, in a majority of cases, miRNA clusters possess cluster-specific transcriptional regulation. For all selected clusters, regulation mediated by long ncRNA was experimentally demonstrated in CRC, at least in one cluster member. Oncostatic functions were predominantly linked with the reviewed miRNAs, and their high expression was usually associated with better survival. These findings implicate the potential of down-regulated clusters in CRC to become promising multi-targets for therapeutic manipulation.
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Affiliation(s)
- Paulína Pidíkova
- Department of Animal Physiology and Ethology, Faculty of Natural Sciences, Comenius University in Bratislava, 842 15 Bratislava, Slovakia;
| | - Richard Reis
- First Surgery Department, University Hospital, Comenius University in Bratislava, 811 07 Bratislava, Slovakia;
| | - Iveta Herichova
- Department of Animal Physiology and Ethology, Faculty of Natural Sciences, Comenius University in Bratislava, 842 15 Bratislava, Slovakia;
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Wang L, Cho KB, Li Y, Tao G, Xie Z, Guo B. Long Noncoding RNA (lncRNA)-Mediated Competing Endogenous RNA Networks Provide Novel Potential Biomarkers and Therapeutic Targets for Colorectal Cancer. Int J Mol Sci 2019; 20:E5758. [PMID: 31744051 PMCID: PMC6888455 DOI: 10.3390/ijms20225758] [Citation(s) in RCA: 399] [Impact Index Per Article: 79.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 11/12/2019] [Accepted: 11/14/2019] [Indexed: 02/07/2023] Open
Abstract
Colorectal cancer (CRC) is the third most common cancer and has a high metastasis and reoccurrence rate. Long noncoding RNAs (lncRNAs) play an important role in CRC growth and metastasis. Recent studies revealed that lncRNAs participate in CRC progression by coordinating with microRNAs (miRNAs) and protein-coding mRNAs. LncRNAs function as competitive endogenous RNAs (ceRNAs) by competitively occupying the shared binding sequences of miRNAs, thus sequestering the miRNAs and changing the expression of their downstream target genes. Such ceRNA networks formed by lncRNA/miRNA/mRNA interactions have been found in a broad spectrum of biological processes in CRC, including liver metastasis, epithelial to mesenchymal transition (EMT), inflammation formation, and chemo-/radioresistance. In this review, we summarize typical paradigms of lncRNA-associated ceRNA networks, which are involved in the underlying molecular mechanisms of CRC initiation and progression. We comprehensively discuss the competitive crosstalk among RNA transcripts and the novel targets for CRC prognosis and therapy.
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Affiliation(s)
- Liye Wang
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, TX,77204, USA; (K.B.C.); (Y.L.); (G.T.); (Z.X.)
| | | | | | | | | | - Bin Guo
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, TX,77204, USA; (K.B.C.); (Y.L.); (G.T.); (Z.X.)
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Wang SY, Hong Q, Zhang CY, Yang YJ, Cai GY, Chen XM. miRNAs in stem cell-derived extracellular vesicles for acute kidney injury treatment: comprehensive review of preclinical studies. Stem Cell Res Ther 2019; 10:281. [PMID: 31481100 PMCID: PMC6724288 DOI: 10.1186/s13287-019-1371-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Stem cell therapy has been applied in many fields. Basic and clinical studies on stem cell therapy for acute kidney injury (AKI) have been conducted. Stem cells have been found to exert renal protection through a variety of mechanisms, such as regulating the immune system and secreting growth factors, cytokines, and extracellular vesicles (EVs). Among them, EVs are considered to be important mediators for stem cell protection because they contain various biological components, including microRNAs (miRNAs). miRNAs are a class of small RNAs that function in posttranscriptional gene regulation. A number of studies have confirmed that miRNAs in stem cell-derived EVs can protect from AKI. miRNAs can enter the injured renal tissue through EVs released from stem cells, thereby exerting anti-inflammatory, anti-apoptotic, anti-fibrotic, and pro-angiogenesis effects on AKI. However, the stem cell sources and AKI models used in these studies have differed. This article will summarize the miRNAs that play a role in kidney protection in stem cell EVs and clarifies the treatment characteristics and mechanisms of different miRNAs. This may provide a reference for clinical practice for acute and chronic kidney diseases.
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Affiliation(s)
- Si-Yang Wang
- Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing Key Laboratory of Kidney Diseases, Beijing, 100853, China
| | - Quan Hong
- Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing Key Laboratory of Kidney Diseases, Beijing, 100853, China
| | - Chao-Yang Zhang
- Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing Key Laboratory of Kidney Diseases, Beijing, 100853, China
| | - Yuan-Jun Yang
- Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing Key Laboratory of Kidney Diseases, Beijing, 100853, China
| | - Guang-Yan Cai
- Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing Key Laboratory of Kidney Diseases, Beijing, 100853, China.
| | - Xiang-Mei Chen
- Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing Key Laboratory of Kidney Diseases, Beijing, 100853, China
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LncRNA NEAT1 Silenced miR-133b Promotes Migration and Invasion of Breast Cancer Cells. Int J Mol Sci 2019; 20:ijms20153616. [PMID: 31344855 PMCID: PMC6695844 DOI: 10.3390/ijms20153616] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Revised: 07/10/2019] [Accepted: 07/23/2019] [Indexed: 01/17/2023] Open
Abstract
Breast cancer, the most prevalent cancer type among women worldwide, remains incurable once metastatic. Long noncoding RNA (lncRNA) and microRNA (miRNA) play important roles in breast cancer by regulating specific genes or proteins. In this study, we found miR-133b was silenced in breast cancer cell lines and in breast cancer tissues, which predicted poor prognosis in breast cancer patients. We also confirmed that lncRNA NEAT1 was up-regulated in breast cancer and inhibited the expression of miR-133b, and identified the mitochondrial protein translocase of inner mitochondrial membrane 17 homolog A (TIMM17A) that serves as the target of miR-133b. Both miR-133b knockdown and TIMM17A overexpression in breast cancer cells promoted cell migration and invasion both in vitro and in vivo. In summary, our findings reveal that miR-133b plays a critical role in breast cancer cell metastasis by targeting TIMM17A. These findings may provide new insights into novel molecular therapeutic targets for breast cancer.
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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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Liu N, Hu G, Wang H, Wang Y, Guo Z. LncRNA BLACAT1 regulates VASP expression via binding to miR-605-3p and promotes giloma development. J Cell Physiol 2019; 234:22144-22152. [PMID: 31093978 DOI: 10.1002/jcp.28778] [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: 02/13/2019] [Revised: 04/17/2019] [Accepted: 04/22/2019] [Indexed: 12/14/2022]
Abstract
Glioma, an aggressive tumor in brain, presents a very poor prognosis. Emerging evidence has demonstrated that dysfunction of long noncoding RNAs (lncRNAs) is closely related to giloma development. However, the roles of lncRNA BLACAT1 in glioma are not unknown. In this study, we utilized in vitro and in vivo experiments to explore the effects of BLACAT1 on glioma cells. BLACAT1 levels were increased in glioma tissues. Upregulation of BLACAT1 showed poor prognosis. Silencing of BLACAT1 markedly repressed glioma proliferation, migration, and invasion, and suppressed glioma growth in vivo. We also illustrated that BLACAT1 worked as the sponge for miR-605-3p and promoted VASP expression. miR-605-3p was downregulated in glioma and repressed glioma proliferation, migration, and invasion. And VASP is upregulated and contributed to glioma progression. Summarily, this study highlights the important roles of BLACAT1/miR-605-3p/VASP axis in glioma progression.
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Affiliation(s)
- Naijie Liu
- Department of Neurosurgery, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Guozhang Hu
- Department of First-aid Medicine, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Han Wang
- Department of Clinical Laboratory, Changchun Chinese Medicine University Affiliated Hospital, Changchun, China
| | - Yue Wang
- Department of Pharmacology and Toxicology, Wright State University, Fairborn, Ohio
| | - Zhigang Guo
- Department of Neurosurgery, China-Japan Union Hospital of Jilin University, Changchun, China
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