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Mosca N, Alessio N, Di Paola A, Marrapodi MM, Galderisi U, Russo A, Rossi F, Potenza N. Osteosarcoma in a ceRNET perspective. J Biomed Sci 2024; 31:59. [PMID: 38835012 DOI: 10.1186/s12929-024-01049-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Accepted: 05/24/2024] [Indexed: 06/06/2024] Open
Abstract
Osteosarcoma (OS) is the most prevalent and fatal type of bone tumor. It is characterized by great heterogeneity of genomic aberrations, mutated genes, and cell types contribution, making therapy and patients management particularly challenging. A unifying picture of molecular mechanisms underlying the disease could help to transform those challenges into opportunities.This review deeply explores the occurrence in OS of large-scale RNA regulatory networks, denominated "competing endogenous RNA network" (ceRNET), wherein different RNA biotypes, such as long non-coding RNAs, circular RNAs and mRNAs can functionally interact each other by competitively binding to shared microRNAs. Here, we discuss how the unbalancing of any network component can derail the entire circuit, driving OS onset and progression by impacting on cell proliferation, migration, invasion, tumor growth and metastasis, and even chemotherapeutic resistance, as distilled from many studies. Intriguingly, the aberrant expression of the networks components in OS cells can be triggered also by the surroundings, through cytokines and vesicles, with their bioactive cargo of proteins and non-coding RNAs, highlighting the relevance of tumor microenvironment. A comprehensive picture of RNA regulatory networks underlying OS could pave the way for the development of innovative RNA-targeted and RNA-based therapies and new diagnostic tools, also in the perspective of precision oncology.
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Affiliation(s)
- Nicola Mosca
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania "Luigi Vanvitelli", Caserta, Italy
| | - Nicola Alessio
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Alessandra Di Paola
- Department of Woman, Child and General and Specialist Surgery, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Maria Maddalena Marrapodi
- Department of Woman, Child and General and Specialist Surgery, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Umberto Galderisi
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Aniello Russo
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania "Luigi Vanvitelli", Caserta, Italy
| | - Francesca Rossi
- Department of Woman, Child and General and Specialist Surgery, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Nicoletta Potenza
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania "Luigi Vanvitelli", Caserta, Italy.
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Wang Y, Jiang XY, Qu MY, Liang J, Yang JS, Sun RL. LncRNA KCNQ1OT1/miR-496/HMGB1 Signaling Axis Promotes Invasion and Migration of Non-small Cell Lung Cancer Cells. Biochem Genet 2024; 62:1994-2009. [PMID: 37812284 DOI: 10.1007/s10528-023-10526-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 09/07/2023] [Indexed: 10/10/2023]
Abstract
Enhanced invasion and migration of non-small cell lung cancer (NSCLC) cells is the major cause of metastasis and poor prognosis in NSCLC. This study was conducted to investigate the role and mechanism of lncRNA KCNQ1OT1 in the proliferation, invasion, and migration of NSCLC cells. The expression of KCNQ1OT1 in NSCLC was analyzed in the StarBase database, and the target miRNA of KCNQ1OT1 as well as the target genes of the miRNA was predicted. Then, the mRNA expression levels of KCNQ1OT1, miR-496, and HMGB1 were detected in clinical tissue samples and cells by qRT-PCR assay. Besides, the protein levels of HMGB1 were detected by Western blot. MTT assay, transwell assay, and scratch assay were used to determine the proliferation, invasion, and migration ability of NSCLC cells, respectively. Correlation analysis was performed to assess the correlation between the expression of KCNQ1OT1, miR-496, and HMGB1 in clinical NSCLC samples. Dual-luciferase reporter gene assay was conducted to analyze the interaction between KCNQ1OT1 and miR-496 and between miR-496 and HMGB1. The database results showed that KCNQ1OT1 was highly expressed in NSCLC. Similarly, we found that the expression level of KCNQ1OT1 was significantly higher in NSCLC tissues and cells than that in the corresponding normal tissues and cells. The results of MTT assay, transwell assay, and scratch assay demonstrated that KCNQ1OT1 significantly enhanced the proliferation, invasion, and migration of NSCLC cells. Further mechanism exploration revealed that KCNQ1OT1 could sponge miR-496, and miR-496 directly targeted and regulated the expression of HMGB1. The expression of miR-496 and either KCNQ1OT1 or HMGB1 were negatively correlated in NSCLC, while the expression of KCNQ1OT1 and HMGB1 were positively correlated. Compared with normal paracancer tissues, miR-496 was much lower and HMGB1 was much higher expressed in NSCLC tissues. The results of cotransfection also further demonstrated that miR-496 inhibitor or sh-HMGB1 cotransfected with sh-KCNQ1OT1 could significantly decrease or increase the ability of sh-KCNQ1OT1 to inhibit the proliferation, invasion, and migration of H1299 cells, respectively. In conclusion, lncRNA KCNQ1OT1 promotes the invasion and migration of NSCLC cells through miR-496/HMGB1 signaling axis.
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Affiliation(s)
- Yan Wang
- Department of Respiratory and Critical Care Medicine, Guangdong Second Provincial General Hospital, Guangzhou, 510317, Guangdong, China
| | - Xiao-Yun Jiang
- Department of Respiratory and Critical Care Medicine, Guangdong Second Provincial General Hospital, Guangzhou, 510317, Guangdong, China
| | - Man-Ying Qu
- Department of Respiratory and Critical Care Medicine, Guangdong Second Provincial General Hospital, Guangzhou, 510317, Guangdong, China
| | - Jie Liang
- Department of Respiratory and Critical Care Medicine, Guangdong Second Provincial General Hospital, Guangzhou, 510317, Guangdong, China
| | - Jia-Sheng Yang
- Department of Respiratory and Critical Care Medicine, Guangdong Second Provincial General Hospital, Guangzhou, 510317, Guangdong, China
| | - Rui-Lin Sun
- Department of Respiratory and Critical Care Medicine, Guangdong Second Provincial General Hospital, Guangzhou, 510317, Guangdong, China.
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Jiang Y, Ma C, Guan Y, Yang W, Yu J, Shi H, Ding Z, Zhang Z. Long noncoding RNA KCNQ1OT1 aggravates cerebral infarction by regulating PTBT1/SIRT1 via miR-16-5p. J Neuropathol Exp Neurol 2024; 83:276-288. [PMID: 38324733 DOI: 10.1093/jnen/nlae005] [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] [Indexed: 02/09/2024] Open
Abstract
Cerebral infarction (CI) is one of the leading causes of disability and death. LncRNAs are key factors in CI progression. Herein, we studied the function of long noncoding RNA KCNQ1OT1 in CI patient plasma samples and in CI models. Quantitative real-time PCR and Western blotting tested gene and protein expressions. The interactions of KCNQ1OT1/PTBP1 and miR-16-5p were analyzed using dual-luciferase reporter and RNA immunoprecipitation assays; MTT assays measured cell viability. Cell migration and angiogenesis were tested by wound healing and tube formation assays. Pathological changes were analyzed by triphenyltetrazolium chloride and routine staining. We found that KCNQ1OT1 and PTBP1 were overexpressed and miR-16-5p was downregulated in CI patient plasma and in oxygen-glucose deprived (OGD) induced mouse brain microvascular endothelial (bEnd.3) cells. KCNQ1OT1 knockdown suppressed pro-inflammatory cytokine production and stimulated angiogenic responses in OGD-bEnd.3 cells. KCNQ1OT1 upregulated PTBP1 by sponging miR-16-5p. PTBP1 overexpression or miR-16-5p inhibition attenuated the effects of KCNQ1OT1 knockdown. PTBP1 silencing protected against OGD-bEnd.3 cell injury by enhancing SIRT1. KCNQ1OT1 silencing or miR-16-5p overexpression also alleviated ischemic injury in a mice middle cerebral artery occlusion model. Thus, KCNQ1OT1 silencing alleviates CI by regulating the miR-16-5p/PTBP1/SIRT1 pathway, providing a theoretical basis for novel therapeutic strategies targeting CI.
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Affiliation(s)
- Yuanming Jiang
- Department of Neurology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Chi Ma
- Department of Neurology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Yuxiu Guan
- Department of Neurology, The Fifth Affiliated Hospital of Harbin Medical University, Daqing, Heilongjiang, China
| | - Wenqi Yang
- Department of Neurology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Jiaqi Yu
- Department of Neurology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Hanfei Shi
- Department of Neurology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Zihang Ding
- Department of Neurology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Zhuobo Zhang
- Department of Neurology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
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Hu JH, Tang HN, Wang YH. Cancer-associated fibroblast exosome LINC00355 promotes epithelial-mesenchymal transition and chemoresistance in colorectal cancer through the miR-34b-5p/CRKL axis. Cancer Gene Ther 2024; 31:259-272. [PMID: 38052858 DOI: 10.1038/s41417-023-00700-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 10/29/2023] [Accepted: 11/15/2023] [Indexed: 12/07/2023]
Abstract
This study was designed to investigate the role and mechanism of cancer-associated fibroblasts (CAFs)-derived exosomes (CAFs-exo) in metastatic and chemoresistant colorectal cancer (CRC). First, CAFs and normal fibroblasts (NFs) were isolated from CRC tissues and histologically normal adjacent tissues. Then, CAFs-exo and NFs-exo were separated with the help of ultracentrifugation. Next, the morphology, diameter and marker expression of exos were evaluated by transmission electron microscopy (TEM), nanoparticle tracking analysis (NTA) and western blot, respectively. Besides, real-time quantitative reverse transcription polymerase chain reaction (qRT-PCR) was used to detect the expression levels of LINC00355, miR-34b-5p, and CRKL in clinical tissue samples, CRC cells, fibroblasts and exos; MTT assay and cell colony formation assay to assess the chemoresistance and colony formation ability of CRC cells, respectively. Subsequently, the targeting relationship among LINC00355, miR-34b-5p, and CRKL (a target gene of miR-34b-5p) was verified by Luciferase reporter assay; and the binding relationship between LINC00355 and miR-34b-5p was assessed by a pull-down assay. Finally, the expression of epithelial-mesenchymal transition (EMT)-related proteins, and CRKL in cells or exos were detected using western blot. After a series of treatments, CAFs and NFs, CAFs-exo and NFs-exo were successfully isolated and identified. It could be observed that CAFs-exo promoted EMT, colony formation and multidrug resistance in CRC cells by secreting LINC00355. Further studies demonstrated that CAFs-exo-secreted LINC00355 increased the expression of CRKL via inhibiting the expression of miR-34b-5p, thereby enhancing chemoresistance and promoting EMT progression in CRC cells. Collectively, CAFs-exo-derived LINC00355 promotes EMT and chemoresistance in CRC by regulating the miR-34b-5p/CRKL axis.
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Affiliation(s)
- Jun-Hong Hu
- Department of Colorectal Anal Surgery, The First Affiliated Hospital of Zhengzhou University, 450052, Zhengzhou, Henan Province, China.
| | - Hong-Na Tang
- Department of Colorectal Anal Surgery, Huaihe Hospital of Henan University, Kaifeng, Henan Province, China
| | - Yu-Hang Wang
- Department of Colorectal Anal Surgery, The First Affiliated Hospital of Zhengzhou University, 450052, Zhengzhou, Henan Province, China
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Liu N, Jiang Y, Chen S, Pan F, Tang Y, Tan X. miRNA-27b-3p/TPX2 Axis Regulates Clear Cell Renal Cell Carcinoma Cell Proliferation, Invasion and Migration. Crit Rev Eukaryot Gene Expr 2024; 34:27-39. [PMID: 37824390 DOI: 10.1615/critreveukaryotgeneexpr.2023048827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2023]
Abstract
There is a wide variety of cancer cells that can be linked to the presence of TPX2. However, there is not a lot of evidence regarding its role in the development and maintenance of clear cell renal cell carcinoma (ccRCC). In our study, bioinformatics analysis was performed to obtain differentially expressed mRNAs and miR-NAs in ccRCC. Survival curves predicted correlation of TPX2 expression with patient survival. The upstream regulatory miRNA of TPX2 was predicted to be miRNA-27b-3p through database, and dual luciferase assay verified the targeted relationship. qRT-PCR and Western blot were employed for examination of TPX2 mRNA and protein expression in ccRCC cells. Proliferation, invasion, migration and cell cycle were detected by CCK-8, colony formation, wound healing, Transwell, and flow cytometry assays. The results showed that TPX2 showed very high expression in ccRCC, and patients with higher TPX2 expression had shorter relative survival. Low miRNA-27b-3p expression was found in ccRCC. Knockdown of TPX2 or forced expression of miRNA-27b-3p in ccRCC cells inhibited cell proliferation, migration, invasion, and arrested cell division in G0/G1 phase. Dual luciferase reporter presented that miRNA-27b-3p targeted TPX2 to inhibit its expression. Rescue experiments demonstrated that the miRNA-27b-3p/ TPX2 axis affected the biological functions of ccRCC cells. Concurrent overexpression of miRNA-27b-3p and TPX2 inhibited the facilitating effect of TPX2 on ccRCC cell growth. The results revealed novel regulatory mechanisms involved in ccRCC progression, hoping that it may spark an insight for later discovery about the new therapeutic targets for ccRCC.
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Affiliation(s)
- Nana Liu
- Oncology Department, People's Hospital of Chongqing Hechuan, Chongqing 401520, China
| | - Yicheng Jiang
- Oncology Department, People's Hospital of Chongqing Hechuan, Chongqing 401520, China
| | - Shiyuan Chen
- Oncology Department, People's Hospital of Chongqing Hechuan, Chongqing 401520, China
| | - Fang Pan
- Oncology Department, People's Hospital of Chongqing Hechuan, Chongqing 401520, China
| | - Yao Tang
- Oncology Department, People's Hospital of Chongqing Hechuan, Chongqing 401520, China
| | - Xingping Tan
- Oncology Department, People's Hospital of Chongqing Hechuan, Chongqing 401520, China
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Zheng X, Han L, Guan J, Chen C, Zhang Y, Zhang J, Zhang Y, Liu S, Su J, Liu M, Huang H. TICRR serves as a prognostic biomarker in lung adenocarcinoma with implications in RNA epigenetic modification, DDR pathway, and RNA metabolism. Front Oncol 2023; 13:1274439. [PMID: 38152367 PMCID: PMC10751343 DOI: 10.3389/fonc.2023.1274439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 11/28/2023] [Indexed: 12/29/2023] Open
Abstract
Purpose TOPBP1 interacting checkpoint and replication regulator (TICRR), a hub gene of the Cdk2-mediated initiation step of DNA replication, has been shown an essential role in tumorigenesis by accelerating the DNA replication of tumor cells. Methods RT-qPCR was used to detect the mRNA expression of TICRR in LUAD tumors and adjacent normal tissues. The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO) database of LUAD were acquired to analyze the critical role of TICRR expression in survival prognosis and clinicopathology characters in LUAD. Gene ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG), and gene set enrichment analysis (GSEA) were performed using the R package. The correlation of TICRR expression with immune cell infiltration, RNA epigenetic modification, DNA damage repair (DDR) pathway, and cell metabolism of LUAD was further explored to verify significant conclusions. Results TICRR was significantly upregulated in most cancer types, including LUAD, lung squamous cell carcinoma (LUSC), and others. Cox regression analysis indicated the overexpression of TICRR was associated with poor survival in several cancers. In LUAD, TICRR expression was positively correlated with tumor stage and was increased in smoking, male, and high tumor mutational burden (TMB) patients. Enrichment analysis revealed that TICRR could influence tumor proliferation and prognosis via activating pathways involving cell cycle, DNA repair, DNA replication, cysteine metabolism, oxidative phosphorylation, and ubiquitin-mediated proteolysis pathways. Interestingly, high TICRR expression correlated with DDR pathway signature (34 genes), 37 m6A/m5C regulated genes, and some metabolism-regulated genes. Silencing the TICRR gene affects cysteine metabolism and modifies cancer-related pathways, with decreased cell cycle and increased B/T cell receptor signaling. Our TICRR risk model accurately predicts LUAD patient prognosis, validated across GEO datasets, and is integrated with clinical characteristics via a nomogram, facilitating personalized treatment strategies and enhancing patient management. Conclusions Taken together, TICRR has emerged as a promising prognostic biomarker in lung adenocarcinoma (LUAD), with implications in immune activation, cell cycle regulation, RNA modification, and tumor energy metabolism. These findings suggest that TICRR could serve as a viable therapeutic target and a reliable prognostic indicator for LUAD.
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Affiliation(s)
- Xunbo Zheng
- The School of Clinical Medicine, Fujian Medical University, Fuzhou, China
- Department of Respiratory and Critical Illness Medicine, the First Hospital of Putian City, Putian, China
| | - Li Han
- Beijing ChosenMed Clinical Laboratory Co. Ltd., Beijing, China
| | - Jun Guan
- The School of Clinical Medicine, Fujian Medical University, Fuzhou, China
- Department of Cardiothoracic Surgery, the First Hospital of Putian City, Putian, China
| | - Chenteng Chen
- The School of Clinical Medicine, Fujian Medical University, Fuzhou, China
- Department of Respiratory and Critical Illness Medicine, the First Hospital of Putian City, Putian, China
| | - Yue Zhang
- Beijing ChosenMed Clinical Laboratory Co. Ltd., Beijing, China
| | - Jiali Zhang
- Beijing ChosenMed Clinical Laboratory Co. Ltd., Beijing, China
| | - Yiran Zhang
- Beijing ChosenMed Clinical Laboratory Co. Ltd., Beijing, China
| | - Siyao Liu
- Beijing ChosenMed Clinical Laboratory Co. Ltd., Beijing, China
| | - Junyan Su
- Beijing ChosenMed Clinical Laboratory Co. Ltd., Beijing, China
| | - Mengyuan Liu
- Beijing ChosenMed Clinical Laboratory Co. Ltd., Beijing, China
| | - Hanxing Huang
- The School of Clinical Medicine, Fujian Medical University, Fuzhou, China
- Department of Pathology, the First Hospital of Putian City, Putian, China
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Chen X, Zhu Y, Song C, Chen Y, Wang Y, Lai M, Zhang C, Fang X. MiR-424-5p targets HSP90AA1 to facilitate proliferation and restrain differentiation in skeletal muscle development. Anim Biotechnol 2023; 34:2514-2526. [PMID: 35875894 DOI: 10.1080/10495398.2022.2102032] [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] [Indexed: 11/01/2022]
Abstract
MiR-424-5p was found to be a potential regulator in the proliferation, migration, and invasion of various cancer cells. However, the effects and functional mechanism of miR-424-5p in the process of myogenesis are still unclear. Previously, using microRNA (miRNA) sequencing and expression analysis, we discovered that miR-424-5p was expressed differentially in the different skeletal muscle growth periods of Xuhuai goats. We hypothesized that miR-424-5p might play an important role in skeletal muscle myogenesis. Then, we found that the proliferation ability of the mouse myoblast cell (C2C12 myoblast cell line) was significantly augmented, whereas the C2C12 differentiation was repressed after increasing the expression of miR-424-5p. Mechanistically, HSP90AA1 presented a close interrelation with miR-424-5p, which was predicted as a target gene in the progression of skeletal muscle myogenesis, using transcriptome sequencing, dual luciferase reporter gene detection, and qRT-PCR. The silencing of HSP90AA1 obviously increased C2C12 proliferation and diminished differentiation, which is consistent with the ability of miR-424-5p in C2C12. Altogether, our findings indicated the role of miR-424-5p as a novel potential regulator via HSP90AA1 during muscle myogenesis progression.
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Affiliation(s)
- Xi Chen
- School of Life Science, Institute of Cellular and Molecular Biology, Jiangsu Normal University, Xuzhou, China
| | - Ying Zhu
- School of Life Science, Institute of Cellular and Molecular Biology, Jiangsu Normal University, Xuzhou, China
- Wuxi No. 2 People's Hospital of Nanjing Medical University, Wuxi, China
| | - Chengchuang Song
- School of Life Science, Institute of Cellular and Molecular Biology, Jiangsu Normal University, Xuzhou, China
| | - Yaqi Chen
- School of Life Science, Institute of Cellular and Molecular Biology, Jiangsu Normal University, Xuzhou, China
| | - Yanhong Wang
- School of Life Science, Institute of Cellular and Molecular Biology, Jiangsu Normal University, Xuzhou, China
| | - Min Lai
- School of Life Science, Institute of Cellular and Molecular Biology, Jiangsu Normal University, Xuzhou, China
| | - Chunlei Zhang
- School of Life Science, Institute of Cellular and Molecular Biology, Jiangsu Normal University, Xuzhou, China
| | - Xingtang Fang
- School of Life Science, Institute of Cellular and Molecular Biology, Jiangsu Normal University, Xuzhou, China
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Abstract
Heat shock protein 90 (HSP90) family is a class of proteins known as molecular chaperones that promote client protein folding and translocation in unstressed cells and regulate cellular homeostasis in the stress response. Noncoding RNAs (ncRNAs) are defined as RNAs that do not encode proteins. Previous studies have shown that ncRNAs are key regulators of multiple fundamental cellular processes, such as development, differentiation, proliferation, transcription, post-transcriptional modifications, apoptosis, and cell metabolism. It is known that ncRNAs do not act alone but function via the interactions with other molecules, including co-chaperones, RNAs, DNAs, and so on. As a kind of molecular chaperone, HSP90 is also involved in many biological procedures of ncRNAs. In this review, we systematically analyze the impact of HSP90 on various kinds of ncRNAs, including their synthesis and function, and how ncRNAs influence HSP90 directly and indirectly.
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Affiliation(s)
- Qing Xu
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Changsha, China
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China
- Sepsis Translational Medicine Key Lab of Hunan Province, Changsha, China
- National Medicine Functional Experimental Teaching Center, Changsha, China
| | - Haoduo Qiao
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Changsha, China
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China
- Sepsis Translational Medicine Key Lab of Hunan Province, Changsha, China
- National Medicine Functional Experimental Teaching Center, Changsha, China
| | - Yunfei Xu
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Changsha, China
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China
- Sepsis Translational Medicine Key Lab of Hunan Province, Changsha, China
- National Medicine Functional Experimental Teaching Center, Changsha, China
| | - Yao Zhao
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Changsha, China
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China
- Sepsis Translational Medicine Key Lab of Hunan Province, Changsha, China
- National Medicine Functional Experimental Teaching Center, Changsha, China
| | - Nina He
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Changsha, China
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China
- Sepsis Translational Medicine Key Lab of Hunan Province, Changsha, China
- National Medicine Functional Experimental Teaching Center, Changsha, China
| | - Jie Zhao
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Changsha, China
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China
- Sepsis Translational Medicine Key Lab of Hunan Province, Changsha, China
- National Medicine Functional Experimental Teaching Center, Changsha, China
| | - Ying Liu
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Changsha, China
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China
- Sepsis Translational Medicine Key Lab of Hunan Province, Changsha, China
- National Medicine Functional Experimental Teaching Center, Changsha, China
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Braga EA, Fridman MV, Burdennyy AM, Loginov VI, Dmitriev AA, Pronina IV, Morozov SG. Various LncRNA Mechanisms in Gene Regulation Involving miRNAs or RNA-Binding Proteins in Non-Small-Cell Lung Cancer: Main Signaling Pathways and Networks. Int J Mol Sci 2023; 24:13617. [PMID: 37686426 PMCID: PMC10487663 DOI: 10.3390/ijms241713617] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 08/25/2023] [Accepted: 08/28/2023] [Indexed: 09/10/2023] Open
Abstract
Long non-coding RNAs (lncRNAs) are crucial players in the pathogenesis of non-small-cell lung cancer (NSCLC). A competing binding of lncRNAs and mRNAs with microRNAs (miRNAs) is one of the most common mechanisms of gene regulation by lncRNAs in NSCLC, which has been extensively researched in the last two decades. However, alternative mechanisms that do not depend on miRNAs have also been reported. Among them, the most intriguing mechanism is mediated by RNA-binding proteins (RBPs) such as IGF2BP1/2/3, YTHDF1, HuR, and FBL, which increase the stability of target mRNAs. IGF2BP2 and YTHDF1 may also be involved in m6A modification of lncRNAs or target mRNAs. Some lncRNAs, such as DLGAP1-AS2, MALAT1, MNX1-AS1, and SNHG12, are involved in several mechanisms depending on the target: lncRNA/miRNA/mRNA interactome and through RBP. The target protein sets selected here were then analyzed using the DAVID database to identify the pathways overrepresented by KEGG, Wikipathways, and the Reactome pathway. Using the STRING website, we assessed interactions between the target proteins and built networks. Our analysis revealed that the JAK-STAT and Hippo signaling pathways, cytokine pathways, the VEGFA-VEGFR2 pathway, mechanisms of cell cycle regulation, and neovascularization are the most relevant to the effect of lncRNA on NSCLC.
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Affiliation(s)
- Eleonora A. Braga
- Institute of General Pathology and Pathophysiology, 125315 Moscow, Russia; (A.M.B.); (V.I.L.); (I.V.P.); (S.G.M.)
- Research Centre for Medical Genetics, 115522 Moscow, Russia
| | - Marina V. Fridman
- Vavilov Institute of General Genetics, Russian Academy of Sciences, 119991 Moscow, Russia;
| | - Alexey M. Burdennyy
- Institute of General Pathology and Pathophysiology, 125315 Moscow, Russia; (A.M.B.); (V.I.L.); (I.V.P.); (S.G.M.)
| | - Vitaly I. Loginov
- Institute of General Pathology and Pathophysiology, 125315 Moscow, Russia; (A.M.B.); (V.I.L.); (I.V.P.); (S.G.M.)
- Research Centre for Medical Genetics, 115522 Moscow, Russia
| | - Alexey A. Dmitriev
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia;
| | - Irina V. Pronina
- Institute of General Pathology and Pathophysiology, 125315 Moscow, Russia; (A.M.B.); (V.I.L.); (I.V.P.); (S.G.M.)
| | - Sergey G. Morozov
- Institute of General Pathology and Pathophysiology, 125315 Moscow, Russia; (A.M.B.); (V.I.L.); (I.V.P.); (S.G.M.)
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Sadeghi R, Pirankuraim H, Javanshir ST, Arabi M, Bereimipour A, Javanshir HT, Mahmoodzadeh H, Nayernia K. Risk of secondary tumours in patients with non-metastatic and metastatic human retinoblastoma. Eye (Lond) 2023; 37:2327-2334. [PMID: 36528757 PMCID: PMC10366135 DOI: 10.1038/s41433-022-02345-3] [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: 04/29/2022] [Revised: 10/26/2022] [Accepted: 11/30/2022] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Retinoblastoma is an intraocular cancer in children and infants. Despite all the available treatment options and high survival rates in children with retinoblastoma, exposure to secondary tumours in adulthood is one of the concerns that physicians face. In many cases, dysfunction of the RB1 gene is the main cause of secondary tumours due to retinoblastoma. Therefore, the aim of this study was to evaluate the incidence of other secondary tumours in children with retinoblastoma. METHODS In this regard, we performed continuous and integrated bioinformatics analyses to find genes, protein products, and signal pathways involved in other cancers. RESULTS 1170 high-expression genes and 960 low-expression genes between non-invasive and invasive retinoblastoma were isolated. After examining the signal pathways, we observed bladder cancer and small cell lung cancer in the overexpressed genes. We also observed 5 cancers of endometriosis, prostate, non-small cell lung cancer, glioblastoma and renal cell carcinoma in low-expression genes. Based on the P-value index, non-small cell lung cancer, prostate and bladder cancers had the highest risk, and endometriosis cancer showed a lower probability of developing a secondary tumour in patients with retinoblastoma. In addition, the network between proteins also showed us that TP53, CDK2, SRC, MAPK1 proteins with high expression and JUN, HSP90AA1, and UBC proteins with low-expression play a significant role in candidate cancers. CONCLUSION Lastly, we used continuous bioinformatics analysis to show that seven cancers are strongly linked to retinoblastoma cancer. Of course, more research is needed to find the best way to care for children who have been treated for retinoblastoma.
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Affiliation(s)
- Reza Sadeghi
- School of Medicine, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Hanieh Pirankuraim
- Medical Genomics Research Center, Tehran Medical Sciences Islamic Azad University, Tehran, Iran
| | | | - Maryam Arabi
- Medical Genomics Research Center, Tehran Medical Sciences Islamic Azad University, Tehran, Iran
- Cancer Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Ahmad Bereimipour
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | | | - Habibollah Mahmoodzadeh
- Cancer Research Center, Tehran University of Medical Sciences, Tehran, Iran.
- Breast Disease Research Center (BDRC), Cancer Institute, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran.
| | - Karim Nayernia
- International Center for Personalized Medicine (P7MEDICINE), 40235, Düsseldorf, Germany
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11
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Tang P, Sun D, Xu W, Li H, Chen L. Long non‑coding RNAs as potential therapeutic targets in non‑small cell lung cancer (Review). Int J Mol Med 2023; 52:68. [PMID: 37350412 PMCID: PMC10413047 DOI: 10.3892/ijmm.2023.5271] [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: 12/17/2022] [Accepted: 05/02/2023] [Indexed: 06/24/2023] Open
Abstract
Non‑small cell lung cancer (NSCLC) is one of the most common malignancies with a high morbidity and mortality rate. Long non‑coding RNAs (lncRNAs) have been reported to be closely associated with the occurrence and progression of NSCLC. In addition, lncRNAs have been documented to participate in the development of drug resistance and radiation sensitivity in patients with NSCLC. Due to their extensive functional characterization, high tissue specificity and sex specificity, lncRNAs have been proposed to be novel biomarkers and therapeutic targets for NSCLC. Therefore, in the current review, the functional classification of lncRNAs were presented, whilst the potential roles of lncRNAs in NSCLC were also summarized. Various physiological aspects, including proliferation, invasion and drug resistance, were all discussed. It is anticipated that the present review will provide a perspective on lncRNAs as potential diagnostic molecular biomarkers and therapeutic targets for NSCLC.
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Affiliation(s)
- Peiyu Tang
- Wuya College of Innovation, Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016
| | - Dejuan Sun
- Wuya College of Innovation, Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016
| | - Wei Xu
- Institute of Structural Pharmacology and TCM Chemical Biology, College of Pharmacy, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, P.R. China
| | - Hua Li
- Wuya College of Innovation, Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016
- Institute of Structural Pharmacology and TCM Chemical Biology, College of Pharmacy, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, P.R. China
| | - Lixia Chen
- Wuya College of Innovation, Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016
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12
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Ling J, Zhang L, Wang Y, Chang A, Huang Y, Zhao H, Zhuo X. Fisetin, a dietary flavonoid, increases the sensitivity of chemoresistant head and neck carcinoma cells to cisplatin possibly through HSP90AA1/IL-17 pathway. Phytother Res 2023; 37:1997-2011. [PMID: 36631292 DOI: 10.1002/ptr.7723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 12/05/2022] [Accepted: 12/18/2022] [Indexed: 01/13/2023]
Abstract
Cisplatin (DDP) resistance is a bottleneck in the treatment of head and neck cancer (HNC), leading to poor prognosis. Fisetin, a dietary flavonoid, has low toxicity and high antitumor activity with unclear mechanisms. We intended to predict the targets of fisetin for reversing DDP-resistance and further verify their expressions and roles. A network pharmacology approach was applied to explore the target genes. The hub genes were screened out and subjected to molecular docking and experimental verification (in vivo and in vitro). Thirty-two genes common to fisetin and DDP-resistance were screened, including three hub genes, namely HSP90AA1, PPIA, and PTPRS. Molecular docking suggested that fisetin and the candidate proteins could bind tightly. HSP90AA1 was identified as the key gene. Administration of fisetin increased the sensitivity of chemoresistant cells (Cal27/DDP and FaDu/DDP) to DDP, accompanied by the downregulation of HSP90AA1 and IL-17. HSP90AA1 silencing increases the sensitivity of DDP-resistant cells to DDP, which was mediated by IL-17. In summary, fisetin might inhibit the chemoresistance of HNC cells to DDP by targeting the HSP90AA1/IL-17 pathway. Several hub genes might be the targets of fisetin for reversing DDP-resistance in HNC cells and might also serve as prognostic factors and therapeutic targets for HNC.
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Affiliation(s)
- Junjun Ling
- Department of Otorhinolaryngology, Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Liang Zhang
- Department of Otorhinolaryngology, Affiliated Hospital of Guizhou Medical University, Guiyang, China.,Department of Respiratory Medicine, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Yan Wang
- Department of Internal Medicine, Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Aoshuang Chang
- Department of Otorhinolaryngology, Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Yi Huang
- Department of Respiratory Medicine, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Houyu Zhao
- Department of Otorhinolaryngology, Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Xianlu Zhuo
- Department of Otorhinolaryngology, Affiliated Hospital of Guizhou Medical University, Guiyang, China
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13
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He SL, Chen YL, Chen QH, Tian Q, Yi SJ. LncRNA KCNQ1OT1 promotes the metastasis of ovarian cancer by increasing the methylation of EIF2B5 promoter. Mol Med 2022; 28:112. [PMID: 36100884 PMCID: PMC9469603 DOI: 10.1186/s10020-022-00521-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Accepted: 07/29/2022] [Indexed: 11/26/2022] Open
Abstract
Background Long non-coding RNAs (lncRNAs) have emerged as regulators of human malignancies, including ovarian cancer (OC). LncRNA KCNQ1OT1 could promote OC progression, and EIF2B5 was associated with development of several tumors. This project was aimed to explore the role of lncRNA KCNQ1OT1 in OC development, as well as the involving action mechanism. Methods Reverse transcription quantitative polymerase chain reaction (RT-qPCR) or Western blotting was employed to determine the expression levels of KCNQ1OT1 and EIF2B5. OC cell proliferation was evaluated by MTT and colony formation assays, and wound healing and Transwell assays were implemented to monitor cell migration and invasion, respectively. The methylation status of EIF2B5 promoter was examined by MS-PCR, to clarify whether the expression of EIF2B5 was decreased. The binding activity of KCNQ1OT1 to methyltransferases DNMT1, DNMT3A and DNMT3B was determined by dual luciferase reporter assay or RIP assay, to explore the potential of KCNQ1OT1 alters the expression of its downstream gene. ChIP assay was carried out to verify the combination between EIF2B5 promoter and above three methyltransferases. Results Expression of lncRNA KCNQ1OT1 was increased in OC tissues and cells. EIF2B5 expression was downregulated in OC, which was inversely correlated with KCNQ1OT1. Knockdown of KCNQ1OT1 inhibited OC cell proliferation and metastasis. KCNQ1OT1 could downregulate EIF2B5 expression by recruiting DNA methyltransferases into EIF2B5 promoter. Furthermore, interference of EIF2B5 expression rescued KCNQ1OT1 depletion-induced inhibitory impact on OC cell proliferation and metastasis. Conclusion Our findings evidenced that lncRNA KCNQ1OT1 aggravated ovarian cancer metastasis by decreasing EIF2B5 expression level, and provided a novel therapeutic strategy for OC. LncRNA KCNQ1OT1 is upregulated, while EIF2B5 is downregulated in OC tissues and cells. Knockdown of KCNQ1OT1 represses OC cell proliferation and metastasis. KCNQ1OT1 decreases EIF2B5 expression by recruiting DNA methyltransferases into EIF2B5 promoter, thereby promoting OC progression.
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Wang Y, Guo Y, Lu Y, Sun Y, Xu D. The effects of endosulfan on cell migration and invasion in prostate cancer cells via the KCNQ1OT1/miR-137-3p/PTP4A3 axis. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 845:157252. [PMID: 35817112 DOI: 10.1016/j.scitotenv.2022.157252] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Revised: 07/03/2022] [Accepted: 07/05/2022] [Indexed: 06/15/2023]
Abstract
Endosulfan belongs to persistent organic pollutants (POPs), closely related to an increased risk of prostate cancer (PCa). The existing evidence shows that lncRNAs compete with miRNAs for binding sites and contribute to the onset and progression of human malignancies. In this study we investigate how endosulfan promotes cell migration and invasion in DU145 and PC3 prostate cancer cells through epigenetic mechanism of lncRNA-miRNA regulation. Based on our past research we focused on PTP4A3 and constructed wild-type (WT) and mutant PTP4A3 plasmids for further analysis. Our results revealed that transfection of PTP4A3-WT can lead to changes in the expression of epithelial-mesenchymal transition (EMT) biomarkers and critical proteins in the TGF-β signaling pathway, and promote cell migration and invasion in PCa cells. Bioinformatics analysis shows that there were complementary sequences in PTP4A3 3'-UTR and KCNQ1OT1 3'-UTR to the seed sequence of hsa-miR-137-3p, and dual luciferase reporter assay indicates the potential binding capacity of miR-137-3p to 3'-UTR of PTP4A3 and KCNQ1OT1. We found that miR-137-3p mimic inhibited cell migration and invasion, as well as repressed alterations of EMT biomarkers and critical proteins in the TGF-β signaling pathway. Rescue experiment results revealed that co-transfection of miR-137-3p mimic and PTP4A3-WT plasmid reversed these changes following transfection with miR-137-3p mimic alone. We found that KCNQ1OT1 was predominantly distributed in the cytoplasm from a subcellular fractionation assay. Functionally, silencing of KCNQ1OT1 repressed cell migration and invasion, and caused alterations of EMT biomarkers and critical proteins in the TGF-β signaling pathway, which were all restored by co-transfection with anti-miR-137-3p or PTP4A3-WT plasmid. Furthermore, overexpression of miR-137-3p or silencing of KCNQ1OT1 dramatically rescued the effects of endosulfan on promoting cell migration and invasion. These findings suggest that endosulfan can indeed promote cell migration and invasion via the KCNQ1OT1/miR-137-3p/PTP4A3 axis in PCa cells.
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Affiliation(s)
- Yue Wang
- Institute of Environmental Systems Biology, Environment Science and Engineering College, Dalian Maritime University, Linghai Road 1, Dalian, 116026, PR China
| | - Yubing Guo
- Institute of Environmental Systems Biology, Environment Science and Engineering College, Dalian Maritime University, Linghai Road 1, Dalian, 116026, PR China
| | - Yanyuan Lu
- Institute of Environmental Systems Biology, Environment Science and Engineering College, Dalian Maritime University, Linghai Road 1, Dalian, 116026, PR China
| | - Yeqing Sun
- Institute of Environmental Systems Biology, Environment Science and Engineering College, Dalian Maritime University, Linghai Road 1, Dalian, 116026, PR China
| | - Dan Xu
- Institute of Environmental Systems Biology, Environment Science and Engineering College, Dalian Maritime University, Linghai Road 1, Dalian, 116026, PR China.
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Restored microRNA-519a enhances the radiosensitivity of non-small cell lung cancer via suppressing EphA2. Gene Ther 2022; 29:588-600. [PMID: 33414521 DOI: 10.1038/s41434-020-00213-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 10/29/2020] [Accepted: 11/30/2020] [Indexed: 01/09/2023]
Abstract
Accumulating evidence has demonstrated that microRNA-519a (miR-519a) acts as the tumor suppressor in various cancers, but little is known regarding its intrinsic regulatory mechanisms in non-small cell lung cancer (NSCLC). Here, we aimed to investigate the role of miR-519a-targeted ephrinA2 receptor (EphA2) in radiosensitivity of NSCLC. MiR-519a and EphA2 expression in NSCLC and paracancerous tissues were detected using RT-qPCR and western blot analysis. A549 cell line was cultured and radiation-resistant cell line A549R was constructed using fractionated X-ray irradiation of these cells at 60 Gy. Colony formation ability and radioresistance of parent strain A549 and resistant strain A549R were detected with restored miR-519a and depleted EphA2. MTT assay was used to measure cell proliferation, flow cytometry was performed for determination of cell cycle distribution and apoptosis. The migration and invasion abilities were assessed by Transwell assay. The target relationship between miR-519a and EphA2 was verified. Results suggested that miR-519a was downregulated and EphA2 was upregulated in NSCLC tissues and cells, and miR-519a targeted EphA2. MiR-519a expression declined, while EphA2 expression elevated in A549R cells versus A549 cells. Upregulated miR-519a and downregulated EphA2 suppressed D0, Dq, survival fraction (SF2) and N-value, arrested cells at G0/G1 phase, advanced the apoptosis and attenuated migration, proliferation, and invasion of A549 and A549R cells. Overexpression of EphA2 reversed the promotion of upregulated miR-519a on radiosensitivity of NSCLC cells. Our results revealed that miR-519a enhances radiosensitivity of NSCLC by inhibiting EphA2 expression. Moreover, miR-519a serves as a target for NSCLC treatment.
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LncRNA KCNQ1OT1 accelerates ovarian cancer progression via miR-125b-5p/CD147 axis. Pathol Res Pract 2022; 239:154135. [PMID: 36191448 DOI: 10.1016/j.prp.2022.154135] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 09/02/2022] [Accepted: 09/16/2022] [Indexed: 11/23/2022]
Abstract
BACKGROUND Ovarian cancer (OC) is one of the most common gynecological malignancies with a high incidence. Researches showed that lncRNA KCNQ1OT1 (KCNQ1OT1) was involved various tumors progression, including OC. However, the precise mechanism of KCNQ1OT1 in OC needs to be further clarified. OBJECTIVE For investigate the underlying mechanism of KCNQ1OT1 regulating OC progression. METHODS CCK-8 assay, colony formation assay, Transwell assay, Western blot and quantitative real-time PCR (qRT-PCR) were performed to examine viability, proliferation, migration and invasion, genes and proteins' level. To identify KCNQ1OT1 as a regulator of miR-125b-5p and miR-125b-5p as a regulator of CD147, we used miRNA target prediction algorithms, Pearson's correlation analysis and dual-luciferase reporter gene assay. RESULTS KCNQ1OT1 was high expression and miR-125b-5p was low expression in OC, and KCNQ1OT1 was negatively correlated with that of miR-125b-5p in OC specimens. KCNQ1OT1 promoted OC cell proliferation and metastasis by binding to miR-125b-5p. miR-125b-5p targeted CD147, and which was negatively correlated with that of miR-125b-5p in OC specimens. KCNQ1OT1 was positively correlated with that of CD147 in OC specimens, and KCNQ1OT1 accelerated OC progression via miR-125b-5p/CD147 axis. CONCLUSION KCNQ1OT1 accelerated OC progression via miR-125b-5p/CD147 axis indicating KCNQ1OT1 serve as a novel biomarker for OC treatment. Our research provides a new direction for OC treatment.
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Ren Z, Xu Y, Wang X, Ren M. KCNQ1OT1 affects cell proliferation, invasion, and migration through a miR-34a / Notch3 axis in breast cancer. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:28480-28494. [PMID: 34993814 DOI: 10.1007/s11356-021-18434-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Accepted: 12/26/2021] [Indexed: 06/14/2023]
Abstract
BACKGROUND Breast cancer (BC) accounts for a significant share of cancer-related deaths worldwide. Ongoing investigations have shown that long non-coding RNAs (lncRNAs) drive BC progression but their underlying mechanisms remain largely undescribed. LncRNA KCNQ1OT1 was previously identified in BC but its functional significance remained to be fully investigated. METHODS KCNQ1OT1 and its downstream target genes were analyzed in breast cancer tissues and cell lines using methods including RT-qPCR, immunohistochemistry and Western blotting. The effects of KCNQ1OT1, miR-34a and Notch3 on BC cells were investigated using assays measuring proliferation (CCK-8, colony formation), apoptosis, and migration/invasion (scratch and Transwell assays). MS2-RIP and dual-luciferase reporter assays were used to study RNA interactions. Xenograft studies were employed to define the tumorigenic potential of KCNQ1OT1 in vivo. RESULTS KCNQ1OT1 expression was up-regulated in BC tissues and high levels were associated with poorer prognosis. ShRNA inhibition of KCNQ1OT1 expression in BC cell lines retarded proliferation, migration and invasion in vitro and tumor growth in vivo. Up-regulation of KCNQ1OT1 was shown to inhibit miR-34a which was associated with blocking the inhibitory effect of miR-34a on BC cell proliferation, migration and invasion. Notch3 was found to be a downstream target of miR-34a with KCNQ1OT1 markedly inducing Notch3 expression in BC. Evidence for KCNQ1OT1/miR-34a/Notch3 axis was further established in clinical BC samples. CONCLUSION We identified a KCNQ1OT1/miR-34a/Notch3 axis which promotes BC progression through effects on cell proliferation and metastasis that was further associated with poor patient prognosis. These results propose targeting this axis as novel treatment approach for BC.
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Affiliation(s)
- Zhiyao Ren
- Department of Breast Surgery, Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, 218 JiXi Avenue, Hefei, 230022, Anhui, PR China
| | - Yunfeng Xu
- Department of Breast Surgery, Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, 218 JiXi Avenue, Hefei, 230022, Anhui, PR China
| | - Xin Wang
- Department of Plastic Surgery, The First Affiliated Hospital of Anhui Medical University, 218 JiXi Avenue, Hefei, 230022, Anhui, PR China
| | - Min Ren
- Department of Breast Surgery, Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, 218 JiXi Avenue, Hefei, 230022, Anhui, PR China.
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Utilizing Bioinformatics Technology to Explore the Potential Mechanism of Danggui Buxue Decoction against NSCLC. DISEASE MARKERS 2022; 2022:5296830. [PMID: 35256890 PMCID: PMC8898125 DOI: 10.1155/2022/5296830] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Accepted: 02/10/2022] [Indexed: 12/12/2022]
Abstract
While lung cancer poses a serious threat to human health, non-small-cell lung cancer (NSCLC) is the most common type of lung cancer. Danggui Buxue Decoction (DBD) is a classical traditional antitumor medicine commonly used in China. However, the potential mechanism of DBD against NSCLC has not yet been expounded. Therefore, this study clarified the potential molecular mechanism and key targets of DBD in NSCLC treatment through several technological advances, such as network pharmacology, molecular docking, and bioinformatics. Firstly, the relative active ingredients and key DBD targets were analyzed, and subsequently, a drug-ingredient-target-disease network diagram was constructed for NSCLC treatment with DBD, resulting in the identification of five main active ingredients and ten core targets according to the enrichment degree. The enrichment analysis revealed that DBD can achieve the purpose of treating NSCLC through the AGE-RAGE signaling pathway in diabetic complications. Secondly, the molecular docking approach predicted that quercetin and hederagenin have the best working mechanisms with PDE3A and PTGS1, while the survival analysis results depicted that high PDE3A gene expression has a relatively poor prognosis for NSCLC patients (p < 0.05). Additionally, PDE3A is mainly distributed in the LU65 cell line that originated from Asian population. In summary, our study results showed that DBD can treat NSCLC through the synergistic correlation between multiple ingredients, multiple targets, and multiple pathways, thus effectively improving NSCLC prognosis. This study not only reflected the medicinal value of DBD but also provided a solid structural basis for future new drug developments and targeted therapies.
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Niu B, Yao L, Zhang Y, Xia X, Su H. LncRNA KCNQ1OT1 promoted hepatitis C virus-induced pyroptosis of β-cell through mediating the miR-223-3p/NLRP3 axis. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:1387. [PMID: 34733939 PMCID: PMC8506540 DOI: 10.21037/atm-21-3862] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 08/12/2021] [Indexed: 01/10/2023]
Abstract
Background Type 2 diabetes is a well described extra-hepatic manifestation of hepatitis C virus (HCV) infection. This study aimed to explore the potential mechanism of KCNQ1 overlapping transcript 1 (KCNQ1OT1) in type 2 diabetes mellitus (T2DM) caused by HCV infection. Methods Min6 cells were infected with HCV to establish a vitro model, and the HCV copy number was detected by real-time quantitative PCR (RT-qPCR). The mRNA and protein expressions of IL-1β, IL-18, NLRP3, caspase-1, and GSDMD were analyzed by RT-qPCR and Western blot. Flow cytometry and TUNEL assay were used to evaluate the pyroptosis of cells and enzyme-linked immunosorbent assay (ELISA) detected the secretion of insulin. A dual luciferase reporter gene assay then verified the targeting relationship of KCNQ1OT1, miRNA-223-3p, and NLRP3. Results KCNQ1OT1 was highly expressed in HCV-infected T2DM patients and HCV-infected β-cells. Silencing KCNQ1OT1 inhibited β-cell pyroptosis by regulating miR-223-3p/NLRP3, and inhibition of miR-223-3p or overexpression of NLRP3 reversed the pyroptosis by silencing KCNQ1OT1. Conclusions Our findings indicate KCNQ1OT1 promotes HCV-infected β-cell pyroptosis through the miRNA-223-3p/NLRP3 axis, effecting the production of insulin and accelerating the occurrence and development of T2DM.Regulating KCNQ1OT1 and its target genes will help to better understand the pathogenesis of T2DM induced by HCV infection and provide new theoretical foundations and therapeutic targets.
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Affiliation(s)
- Ben Niu
- Department of Endocrinology and Metabolism, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, China
| | - Lixuan Yao
- Department of Endocrinology and Metabolism, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, China
| | - Yating Zhang
- Department of Endocrinology and Metabolism, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, China
| | - Xueshan Xia
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China
| | - Heng Su
- Department of Endocrinology and Metabolism, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, China
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Cagle P, Qi Q, Niture S, Kumar D. KCNQ1OT1: An Oncogenic Long Noncoding RNA. Biomolecules 2021; 11:1602. [PMID: 34827600 PMCID: PMC8615887 DOI: 10.3390/biom11111602] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 10/23/2021] [Accepted: 10/25/2021] [Indexed: 12/24/2022] Open
Abstract
Long noncoding RNAs (lncRNAs) are transcripts greater than 200 nucleotides that do not code for proteins but regulate gene expression. Recent studies indicate that lncRNAs are involved in the modulation of biological functions in human disease. KCNQ1 Opposite Strand/Antisense Transcript 1 (KCNQ1OT1) encodes a lncRNA from the opposite strand of KCNQ1 in the CDKN1C/KCNQ1OT1 cluster that is reported to play a vital role in the development and progression of cancer. KCNQ1OT1 regulates cancer cell proliferation, cell cycle, migration and invasion, metastasis, glucose metabolism, and immune evasion. The aberrant expression of KCNQ1OT1 in cancer patients is associated with poor prognosis and decreased survival. This review summarizes recent literature related to the biological functions and molecular mechanisms of KCNQ1OT1 in various human cancers, including colorectal, bladder, breast, oral, melanoma, osteosarcoma, lung, glioma, ovarian, liver, acute myeloid leukemia, prostate, and gastric. We also discuss the role of KCNQ1OT1 as a promising diagnostic biomarker and a novel therapeutic target in human cancers.
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Affiliation(s)
| | | | | | - Deepak Kumar
- Julius L. Chambers Biomedical Biotechnology Research Institute, North Carolina Central University, Durham, NC 27707, USA; (P.C.); (Q.Q.); (S.N.)
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21
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Wang D, Tang F, Liu X, Fan Y, Zheng Y, Zhuang H, Chen B, Zhuo J, Wang B. Expression and Tumor-Promoting Effect of Tyrosine Phosphatase Receptor Type N (PTPRN) in Human Glioma. Front Oncol 2021; 11:676287. [PMID: 34557405 PMCID: PMC8453168 DOI: 10.3389/fonc.2021.676287] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 07/09/2021] [Indexed: 01/26/2023] Open
Abstract
Tyrosine phosphatase receptor type N (PTPRN) plays an important role in the regulation of the secretion pathways of various neuroendocrine cells. Moreover, PTPRN was demonstrated to play a crucial role in the initiation and progression of the signalling cascade regulating cell function. In this study, fifty-seven glioma patients were enrolled for clinical and prognostic analyses. The cell phenotype was determined by cell proliferation and migration assays. RNA-seq, co-IP and mass spectrometry were used to study the molecular mechanism of the effects of PTPRN on cell proliferation and metastasis. The result showed that High expression of PTPRN indicated a poor prognosis of high-grade glioma. PTPRN downregulation reduced the proliferation and migration of glioma cells, and PTPRN overexpression induced the proliferation and migration of glioma cells. PTPRN knockdown decreased tumor growth in a mouse xenograft model. Effect of PTPRN knockdown on the transcriptome was studied in U87 glioma cells. PTPRN activated the PI3K/AKT pathway by interacting with HSP90AA1. In conclusion, PTPRN is an important proliferation- and metastasis-promoting factor. Reducing the expression of PTPRN in glioma cells can be used as a potential therapeutic strategy.
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Affiliation(s)
- Dong Wang
- Department of Neurosurgery, Tianjin Medical University, General Hospital, Tianjin Key Laboratory of Injuries, Variations, and Regeneration of Nervous System, Tianjin Neurological Institute, Tianjin, China
| | - Fan Tang
- Department of Pathology, Tianjin Huanhu Hospital, Tianjin Key Laboratory of Cerebral Vascular and Neurodegenerative Diseases, Tianjin Neurosurgical Institute, Tianjin, China
| | - Xi Liu
- Department of Gastroenterology, Tianjin Nankai Hospital, Tianjin, China
| | - Yueshan Fan
- Department of Neurosurgery, Tianjin Medical University, General Hospital, Tianjin Key Laboratory of Injuries, Variations, and Regeneration of Nervous System, Tianjin Neurological Institute, Tianjin, China
| | - Yu Zheng
- GCP Center, Tianjin Medical University Cancer Institute & Hospital, Tianjin, China
| | - Hao Zhuang
- Department of Hepatic Biliary Pancreatic Surgery, Cancer Hospital Affiliated to Zhengzhou University, Zhengzhou, China
| | - Budong Chen
- Department of Neurosurgery, Tianjin Huanhu Hospital, Tianjin Key Laboratory of Cerebral Vascular and Neurodegenerative Diseases, Tianjin Neurosurgical Institute, Tianjin, China.,Department of Neurosurgery, Tianjin University Huanhu Hospital, Tianjin, China.,Department of Neurosurgery, Huanhu Hospital Affiliated to Nankai University, Tianjin, China
| | - Jie Zhuo
- Department of Neurosurgery, Tianjin Huanhu Hospital, Tianjin Key Laboratory of Cerebral Vascular and Neurodegenerative Diseases, Tianjin Neurosurgical Institute, Tianjin, China.,Department of Neurosurgery, Tianjin University Huanhu Hospital, Tianjin, China.,Department of Neurosurgery, Huanhu Hospital Affiliated to Nankai University, Tianjin, China
| | - Bo Wang
- Department of Neurosurgery, Tianjin Huanhu Hospital, Tianjin Key Laboratory of Cerebral Vascular and Neurodegenerative Diseases, Tianjin Neurosurgical Institute, Tianjin, China.,Department of Neurosurgery, Tianjin University Huanhu Hospital, Tianjin, China.,Department of Neurosurgery, Huanhu Hospital Affiliated to Nankai University, Tianjin, China
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22
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Wang P, Zhang H, Zhao W, Dai N. Silencing of long non-coding RNA KCNQ1OT1 alleviates LPS-induced lung injury by regulating the miR-370-3p/FOXM1 axis in childhood pneumonia. BMC Pulm Med 2021; 21:247. [PMID: 34301223 PMCID: PMC8299180 DOI: 10.1186/s12890-021-01609-0] [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: 01/20/2021] [Accepted: 07/13/2021] [Indexed: 01/02/2023] Open
Abstract
Purpose Long non-coding RNAs (lncRNAs) play important roles in the development of pneumonia. We aimed to explore the role of the lncRNA KCNQ1OT1 in pneumonia and its underlying mechanisms. Methods The expression of KCNQ1OT1, FOXM1, and miR-370-3p was detected in the serum of 24 children with pneumonia and in 24 healthy controls. Normal human embryonic lung-derived diploid fibroblasts (WI-38 cells) were stimulated with LPS (10 μg/mL) to simulate the cellular model of pneumonia, and cell viability, apoptosis, and inflammation were analysed. Dual luciferase reporter and/or RNA binding protein immunoprecipitation assays were performed to test the relationship between miR-370-3p and KCNQ1OT1/FOXM1. Mice were intratracheally administered LPS (5 mg/kg) to induce an in vivo model of pneumonia, and pathological injury and inflammation were analysed. Results The expression of KCNQ1OT1 and FOXM1 was up-regulated, and miR-370-3p was down-regulated in the serum of children with pneumonia, LPS-treated WI-38 cells, and in lung tissues of LPS-treated mice. Silencing of KCNQ1OT1 or overexpression of miR-370-3p suppressed cell apoptosis and inflammation and facilitated cell viability in LPS-treated WI-38 cells. KCNQ1OT1 directly targets miR-370-3p and negatively regulates its expression. FOXM1 was targeted by miR-370-3p and negatively modulated by miR-370-3p. In addition, silencing of KCNQ1OT1 mitigated LPS-induced lung injury and inflammation in mice. The protective effects of KCNQ1OT1 silencing in LPS-treated WI-38 cells and mice were reversed by silencing of miR-370-3p or overexpression of FOXM1. Conclusion Silencing of KCNQ1OT1 alleviates LPS-induced lung injury by regulating the miR-370-3p/FOXM1 axis in pneumonia. Supplementary Information The online version contains supplementary material available at 10.1186/s12890-021-01609-0.
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Affiliation(s)
- Ping Wang
- Department of Pediatrics I, The People's Hospital of Shouguang, No. 43, Jiankang Street, Shouguang City, 262700, Shandong Province, China
| | - Haitao Zhang
- Department of Pediatrics I, The People's Hospital of Shouguang, No. 43, Jiankang Street, Shouguang City, 262700, Shandong Province, China
| | - Weiqing Zhao
- Department of Digestive Internal Medicine, Qingdao Hospital of Traditional Chinese Medicine (Qingdao Hiser Hospital), No. 4, Renmin Road, Shibei District, Qingdao City, 266033, Shandong Province, China
| | - Nini Dai
- Department of Pediatrics I, Qingdao Hospital of Traditional Chinese Medicine (Qingdao Hiser Hospital), No. 4, Renmin Road, Shibei District, Qingdao City, 266033, Shandong Province, China.
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23
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Tan X, Mao L, Huang C, Yang W, Guo J, Chen Z, Chen Z. Comprehensive analysis of lncRNA-miRNA-mRNA regulatory networks for microbiota-mediated colorectal cancer associated with immune cell infiltration. Bioengineered 2021; 12:3410-3425. [PMID: 34227920 PMCID: PMC8806860 DOI: 10.1080/21655979.2021.1940614] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Recent findings have identified microbiota as crucial participants in many disease conditions, including cancers. Competing endogenous RNA (ceRNA) is regarded as a candidate mechanism involving relevant biological processes. We therefore constructed a ceRNA network using the TCGA and GEO database, to determine the potential mechanisms of microbiota-mediated colorectal carcinogenesis and progression. We found a total of 75 lncRNAs, 8 miRNAs, and 9 mRNAs in the probiotics-mediated ceRNA network and a total of 49 lncRNAs, 4 miRNAs, and 3 mRNA in the pathobiont-mediated ceRNA network, which could induce the microbiota-mediated carcinogenesis and progression. The GO and KEGG analysis indicated that the ceRNA network is mainly enriched in the metabolic process, and two unique pathways (the p53 signaling pathway and microRNA in cancer), respectively. A four-gene signature (FRMD6-AS2, DIRC3, LIFR-AS1, and MRPL23-AS1) was suggested as an independent prognostic factor. Four lncRNAs (LINC00355, KCNQ1OT1, LINC00491, and HOTAIR) were associated with poor survival. Three small molecule candidate anticancer drugs (Pentoxyverine, Rimexolone, and Doxylamine) were identified. A four-gene signature (FAM129A, BCL2, PMAIP1, and RPS6) is significantly correlated with immune infiltration level. This study provides a promising biomarker reservoir to explore the mechanism by which microbiota regulate the ceRNA network involving the immune response, and further participate in colorectal carcinogenesis and progression.
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Affiliation(s)
- Xiangzhou Tan
- Hunan Key Laboratory of Precise Diagnosis and Treatment of Gastrointestinal Tumor, Xiangya Hospital Central South University, Changsha, Hunan Province, China.,Department of General, Visceral and Transplant Surgery, University Hospital Tuebingen, Tuebingen, Baden-Wuerttemberg, Germany.,Department of General Surgery, Xiangya Hospital Central South University, Changsha, Hunan Province, China
| | - Linfeng Mao
- Hunan Key Laboratory of Precise Diagnosis and Treatment of Gastrointestinal Tumor, Xiangya Hospital Central South University, Changsha, Hunan Province, China.,Department of General Surgery, Xiangya Hospital Central South University, Changsha, Hunan Province, China
| | - Changhao Huang
- Hunan Key Laboratory of Precise Diagnosis and Treatment of Gastrointestinal Tumor, Xiangya Hospital Central South University, Changsha, Hunan Province, China.,Department of General Surgery, Xiangya Hospital Central South University, Changsha, Hunan Province, China
| | - Weimin Yang
- Hunan Key Laboratory of Precise Diagnosis and Treatment of Gastrointestinal Tumor, Xiangya Hospital Central South University, Changsha, Hunan Province, China.,Department of General Surgery, Xiangya Hospital Central South University, Changsha, Hunan Province, China
| | - Jianping Guo
- Hunan Key Laboratory of Precise Diagnosis and Treatment of Gastrointestinal Tumor, Xiangya Hospital Central South University, Changsha, Hunan Province, China.,Department of General Surgery, Xiangya Hospital Central South University, Changsha, Hunan Province, China
| | - Zhikang Chen
- Hunan Key Laboratory of Precise Diagnosis and Treatment of Gastrointestinal Tumor, Xiangya Hospital Central South University, Changsha, Hunan Province, China.,Department of General Surgery, Xiangya Hospital Central South University, Changsha, Hunan Province, China
| | - Zihua Chen
- Hunan Key Laboratory of Precise Diagnosis and Treatment of Gastrointestinal Tumor, Xiangya Hospital Central South University, Changsha, Hunan Province, China.,Department of General Surgery, Xiangya Hospital Central South University, Changsha, Hunan Province, China
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24
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Pavanelli AC, Mangone FR, Barros LRC, Machado-Rugolo J, Capelozzi VL, Nagai MA. Abnormal Long Non-Coding RNAs Expression Patterns Have the Potential Ability for Predicting Survival and Treatment Response in Breast Cancer. Genes (Basel) 2021; 12:genes12070996. [PMID: 34209776 PMCID: PMC8305383 DOI: 10.3390/genes12070996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 06/11/2021] [Accepted: 06/23/2021] [Indexed: 12/09/2022] Open
Abstract
Abnormal long non-coding RNAs (lncRNAs) expression has been documented to have oncogene or tumor suppressor functions in the development and progression of cancer, emerging as promising independent biomarkers for molecular cancer stratification and patients’ prognosis. Examining the relationship between lncRNAs and the survival rates in malignancies creates new scenarios for precision medicine and targeted therapy. Breast cancer (BRCA) is a heterogeneous malignancy. Despite advances in its molecular classification, there are still gaps to explain in its multifaceted presentations and a substantial lack of biomarkers that can better predict patients’ prognosis in response to different therapeutic strategies. Here, we performed a re-analysis of gene expression data generated using cDNA microarrays in a previous study of our group, aiming to identify differentially expressed lncRNAs (DELncRNAs) with a potential predictive value for response to treatment with taxanes in breast cancer patients. Results revealed 157 DELncRNAs (90 up- and 67 down-regulated). We validated these new biomarkers as having prognostic and predictive value for breast cancer using in silico analysis in public databases. Data from TCGA showed that compared to normal tissue, MIAT was up-regulated, while KCNQ1OT1, LOC100270804, and FLJ10038 were down-regulated in breast tumor tissues. KCNQ1OT1, LOC100270804, and FLJ10038 median levels were found to be significantly higher in the luminal subtype. The ROC plotter platform results showed that reduced expression of these three DElncRNAs was associated with breast cancer patients who did not respond to taxane treatment. Kaplan–Meier survival analysis revealed that a lower expression of the selected lncRNAs was significantly associated with worse relapse-free survival (RFS) in breast cancer patients. Further validation of the expression of these DELncRNAs might be helpful to better tailor breast cancer prognosis and treatment.
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Affiliation(s)
- Ana Carolina Pavanelli
- Discipline of Oncology, Department of Radiology and Oncology, Faculty of Medicine, University of São Paulo, São Paulo 01246-903, Brazil; (A.C.P.); (F.R.M.); (L.R.C.B.)
- Center for Translational Research in Oncology, Cancer Institute of São Paulo, São Paulo 01246-903, Brazil
| | - Flavia Rotea Mangone
- Discipline of Oncology, Department of Radiology and Oncology, Faculty of Medicine, University of São Paulo, São Paulo 01246-903, Brazil; (A.C.P.); (F.R.M.); (L.R.C.B.)
- Center for Translational Research in Oncology, Cancer Institute of São Paulo, São Paulo 01246-903, Brazil
| | - Luciana R. C. Barros
- Discipline of Oncology, Department of Radiology and Oncology, Faculty of Medicine, University of São Paulo, São Paulo 01246-903, Brazil; (A.C.P.); (F.R.M.); (L.R.C.B.)
- Center for Translational Research in Oncology, Cancer Institute of São Paulo, São Paulo 01246-903, Brazil
| | - Juliana Machado-Rugolo
- Department of Pathology, University of São Paulo Medical School (USP), São Paulo 01246-903, Brazil; (J.M.-R.); (V.L.C.)
- Health Technology Assessment Center (NATS), Clinical Hospital (HCFMB), Medical School of São Paulo State University (UNESP), Botucatu, São Paulo 01246-903, Brazil
| | - Vera L. Capelozzi
- Department of Pathology, University of São Paulo Medical School (USP), São Paulo 01246-903, Brazil; (J.M.-R.); (V.L.C.)
| | - Maria A. Nagai
- Discipline of Oncology, Department of Radiology and Oncology, Faculty of Medicine, University of São Paulo, São Paulo 01246-903, Brazil; (A.C.P.); (F.R.M.); (L.R.C.B.)
- Center for Translational Research in Oncology, Cancer Institute of São Paulo, São Paulo 01246-903, Brazil
- Correspondence:
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Lamberti MJ, Nigro A, Casolaro V, Rumie Vittar NB, Dal Col J. Damage-Associated Molecular Patterns Modulation by microRNA: Relevance on Immunogenic Cell Death and Cancer Treatment Outcome. Cancers (Basel) 2021; 13:cancers13112566. [PMID: 34073766 PMCID: PMC8197279 DOI: 10.3390/cancers13112566] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 05/14/2021] [Accepted: 05/18/2021] [Indexed: 02/06/2023] Open
Abstract
Simple Summary Inside the cell, damage-associated molecular pattern molecules (DAMPs) play several physiological functions, but when they are released or translocated to the extracellular space, they gain additional immunogenic roles. Thus, DAMPs are considered key hallmarks of immunogenic cell death (ICD) in cancer, a functionally unique regulated form of stress-mediated cell death that activates the immune system response against tumor cells. Several epigenetic modulators of DAMPs have been reported. In this review, we aimed to provide an overview of the effects of microRNAs (miRNAs) on the expression of DAMPs and the putative link between miRNA, DAMPs, and cell death, focused on ICD. Overall, we propose that miRNAs, by targeting DAMPs, play critical roles in the regulation of both cell death and immune-associated mechanisms in cancer, while evidence of their potential involvement in ICD is limited. Finally, we discuss emerging data regarding the impact of miRNAs’ modulation on cancer treatment outcome. Abstract Immunogenic cell death (ICD) in cancer is a functionally unique regulated form of stress-mediated cell death that activates both the innate and adaptive immune response against tumor cells. ICD makes dying cancer cells immunogenic by improving both antigenicity and adjuvanticity. The latter relies on the spatiotemporally coordinated release or exposure of danger signals (DAMPs) that drive robust antigen-presenting cell activation. The expression of DAMPs is often constitutive in tumor cells, but it is the initiating stressor, called ICD-inducer, which finally triggers the intracellular response that determines the kinetics and intensity of their release. However, the contribution of cell-autonomous features, such as the epigenetic background, to the development of ICD has not been addressed in sufficient depth. In this context, it has been revealed that several microRNAs (miRNAs), besides acting as tumor promoters or suppressors, can control the ICD-associated exposure of some DAMPs and their basal expression in cancer. Here, we provide a general overview of the dysregulation of cancer-associated miRNAs whose targets are DAMPs, through which new molecular mediators that underlie the immunogenicity of ICD were identified. The current status of miRNA-targeted therapeutics combined with ICD inducers is discussed. A solid comprehension of these processes will provide a framework to evaluate miRNA targets for cancer immunotherapy.
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Affiliation(s)
- María Julia Lamberti
- INBIAS, CONICET-UNRC, Río Cuarto, Córdoba 5800, Argentina;
- Department of Medicine, Surgery and Dentistry ‘Scuola Medica Salernitana’, University of Salerno, Baronissi, 84081 Salerno, Italy; (A.N.); (V.C.)
- Correspondence: (M.J.L.); (J.D.C.)
| | - Annunziata Nigro
- Department of Medicine, Surgery and Dentistry ‘Scuola Medica Salernitana’, University of Salerno, Baronissi, 84081 Salerno, Italy; (A.N.); (V.C.)
| | - Vincenzo Casolaro
- Department of Medicine, Surgery and Dentistry ‘Scuola Medica Salernitana’, University of Salerno, Baronissi, 84081 Salerno, Italy; (A.N.); (V.C.)
| | | | - Jessica Dal Col
- Department of Medicine, Surgery and Dentistry ‘Scuola Medica Salernitana’, University of Salerno, Baronissi, 84081 Salerno, Italy; (A.N.); (V.C.)
- Correspondence: (M.J.L.); (J.D.C.)
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26
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Alsaeed SA, Toss M, Alsaleem M, Aleskandarany M, Joseph C, Kurozumi S, Ball G, Mongan N, Green A, Rakha E. Prognostic significance of heat shock protein 90AA1 (HSP90α) in invasive breast cancer. J Clin Pathol 2021; 75:263-269. [PMID: 33766957 DOI: 10.1136/jclinpath-2020-207106] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 12/26/2020] [Accepted: 01/23/2021] [Indexed: 11/03/2022]
Abstract
AIMS The mechanisms that drive breast cancer (BC) progression and poor outcome are not fully understood. The human heat shock protein 90 alpha family class A member 1 (HSP90α) encoded by the HSP90ΑA1 gene has a vital role in cellular responses to stress and is implicated in the development and progression of many cancers. The current study aims to explore the clinical and prognostic importance of HSP90α in BC. METHODS The Molecular Taxonomy of Breast Cancer International Consortium (n=1980); The Cancer Genome Atlas (n=1097) and the Breast Cancer Gene-Expression Miner (Bc-GenExMiner) BC datasets (n=5056) were used to evaluate HSP90ΑA1 mRNA expression. HSP90α protein expression was further assessed using immunohistochemistry in a large (n=911) well-characterised BC series. The association between mRNA and protein expressions with other clinicopathological parameters and outcome was analysed. RESULTS High expression of HSP90ΑA1 both at the mRNA and protein levels was significantly associated with characteristics of BC poor prognosis, including high grade, lymphovascular invasion, poor Nottingham Prognostic Index and positive expression of p53 and PIK3CA. Outcome analysis revealed that high HSP90α protein expression is an independent predictor of shorter BC-specific survival. CONCLUSION HSP90α can be used as a potential prognostic marker in BC. Further mechanistic studies are warranted to determine the underlying molecular mechanisms mediated by HSP90α in BC.
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Affiliation(s)
- Sami A Alsaeed
- Nottingham Breast Cancer Research Centre, Division of Cancer and Stem Cells, School of Medicine, Biodiscovery Institute, University of Nottingham, Nottingham, UK .,Faculty of Applied Medical Sciences, Northern Border University, Arar, Saudi Arabia
| | - Michael Toss
- Nottingham Breast Cancer Research Centre, Division of Cancer and Stem Cells, School of Medicine, Biodiscovery Institute, University of Nottingham, Nottingham, UK
| | - Mansour Alsaleem
- Nottingham Breast Cancer Research Centre, Division of Cancer and Stem Cells, School of Medicine, Biodiscovery Institute, University of Nottingham, Nottingham, UK.,Department of Applied Medical Sciences, Onizah Community College, Qassim University, Qassim, Saudi Arabia
| | - Mohammed Aleskandarany
- Nottingham Breast Cancer Research Centre, Division of Cancer and Stem Cells, School of Medicine, Biodiscovery Institute, University of Nottingham, Nottingham, UK
| | - Chitra Joseph
- School of Medicine,The University of Nottingham and Nottingham University Hospitals NHS Trust, Nottingham City Hospital, Nottingham, UK
| | - Sasagu Kurozumi
- Nottingham Breast Cancer Research Centre, Division of Cancer and Stem Cells, School of Medicine, Biodiscovery Institute, University of Nottingham, Nottingham, UK.,Department of Breast Surgery, International University of Health and Welfare, Narita, Japan
| | - Graham Ball
- John van Geest Cancer Research Centre, School of Science and Technology, Nottingham Trent University, Nottingham, Notts, UK
| | - Nigel Mongan
- Faculty of Medicine and Health Sciences, Biodiscovery Institute, University of Nottingham, Nottingham, UK.,Department of Pharmacology, Weill Cornell Medicine, New York City, New York, USA
| | - Andrew Green
- Nottingham Breast Cancer Research Centre, Division of Cancer and Stem Cells, School of Medicine, Biodiscovery Institute, University of Nottingham, Nottingham, UK
| | - Emad Rakha
- Nottingham Breast Cancer Research Centre, Division of Cancer and Stem Cells, School of Medicine, Biodiscovery Institute, University of Nottingham, Nottingham, UK.,Faculty of Medicine, Menoufyia University, Shebin al Kawm, Egypt
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27
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Zhang M, Cheng K. Long non-coding RNA KCNQ1OT1 promotes hydrogen peroxide-induced lens epithelial cell apoptosis and oxidative stress by regulating miR-223-3p/BCL2L2 axis. Exp Eye Res 2021; 206:108543. [PMID: 33744257 DOI: 10.1016/j.exer.2021.108543] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 03/02/2021] [Accepted: 03/10/2021] [Indexed: 12/24/2022]
Abstract
Many long non-coding RNAs (lncRNAs) can exert crucial roles in the pathogenesis of cataract, including lncRNA KCNQ1 opposite strand/antisense transcript 1 (KCNQ1OT1). We aimed to further elucidate the biological role and regulatory molecular mechanism of KCNQ1OT1 in cataract. The expression of KCNQ1OT1 and miR-223-3p and BCL2 like 2 (BCL2L2) was examined by qRT-PCR. Cataract cell model was constructed by treatment with hydrogen peroxide (H2O2) in lens epithelial cells (SRA01/04). SRA01/04 cell viability and cell apoptosis were tested using CCK-8 assay and flow cytometry, respectively. Western blot (WB) was performed to measure the levels of apoptosis-related proteins and BCL2L2 protein. The oxidative stress factors were analyzed by corresponding kits. The interaction between miR-223-3p and KCNQ1OT1 or BCL2L2 was validated by dual-luciferase reporter and RNA Immunoprecipitation (RIP) assays. We found that KCNQ1OT1 was upregulated in cataract anterior lens capsule samples and H2O2-induced SRA01/04 cells. Knockdown of KCNQ1OT1 suppressed H2O2-induced SRA01/04 cell apoptosis and oxidative stress. KCNQ1OT1 acted as a sponge of miR-223-3p. Inhibition of miR-223-3p could abate the function of KCNQ1OT1 silence in H2O2-treated SRA01/04 cells. Additionally, BCL2L2 was a direct target of miR-223-3p, and miR-223-3p weakened H2O2-induced SRA01/04 cell apoptosis and oxidative stress by targeting BCL2L2. Collectively, the data suggest a role for the KCNQ1OT1/miR-223-3p/BCL2L2 axis in cataract formation but the data was generated using an epithelial cell line.
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Affiliation(s)
- Min Zhang
- Department of Ophthalmology, Jinan Maternal and Child Health Hospital, Jinan, 250001, Shandong, China
| | - Kai Cheng
- Department of Ophthalmology, Jinan Maternal and Child Health Hospital, Jinan, 250001, Shandong, China.
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Identification of sulforaphane regulatory network in hepatocytes by microarray data analysis based on GEO database. Biosci Rep 2021; 41:227670. [PMID: 33491737 PMCID: PMC7876596 DOI: 10.1042/bsr20194464] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 12/17/2020] [Accepted: 01/21/2021] [Indexed: 12/25/2022] Open
Abstract
For the past several years, more and more attention has been paid to the exploration of traditional medicinal plants. Further studies have shown that more dietary consumption of cruciferous vegetables can prevent the occurrence of tumor, indicating the potential applications in the chemoprevention of cancer. Sulforaphane (SFN) has been identified by the National Cancer Institute as a candidate for chemopreventive research; it is one of several compounds selected by the National Cancer Institute’s Rapid Access to Preventive Intervention Development Program and is currently in use. In the present study, based on the data of Gene Expression Omnibus database (GEO), the gene expression profile of hepatocytes that were treated with SFN was analyzed. The ANOVA and Limma packets in R were used to analyze the differentially expressed genes (DEGs). On this basis, gene ontology (GO) function and Kyoto Encyclopedia of Genes and Genomes (KEGG) signaling pathway enrichment were further analyzed. The core gene HSP90-α (cytosolic), class A member 1 (HSP90AA1) was screened by protein–protein interaction (PPI) network established by STRING and Cytoscape software for further study. Finally, miRNAs targeted HSP90AA1 were predicted by miRanda. All in all, based on the data of GSE20479 chip, the molecular mechanism of SFN on hepatocytes was studied by a series of bioinformatics analysis methods, and it indicated that SFN might effect on the hepatocyte by regulating HSP90AA1.
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KCNQ1OT1 regulates the retinoblastoma cell proliferation, migration and SIRT1/JNK signaling pathway by targeting miR-124/SP1 axis. Biosci Rep 2021; 41:227390. [PMID: 33345272 PMCID: PMC7805023 DOI: 10.1042/bsr20201626] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 11/06/2020] [Accepted: 12/09/2020] [Indexed: 02/03/2023] Open
Abstract
Objective: Long non-coding RNA (lncRNA) KCNQ1OT1 was reported to be tightly associated with tumorigenesis and progression of multiple cancers. However, the expression and biological functions of KCNQ1OT1 in retinoblastoma (RB) are still unknown. We aim to elucidate the potential function and underlying mechanism of KCNQ1OT1 in regulating the progression of RB. Methods: The levels of KCNQ1OT1 were assayed by real-time fluorescence quantitative polymerase chain reaction (RT-qPCR) analysis. The cell proliferation of RB cells (Y79 and WERI-Rb-1) were evaluated through Cell Counting Kit 8 (CCK-8) assay. Meanwhile, Y79 and WERI-Rb-1 cell apoptosis and cell cycle were assessed by Flow Cytometry analysis. Dual luciferase reporter assay were performed to illustrate the interaction between KCNQ1OT1, miR-124, and SP1. Results: We found that KCNQ1OT1 was up-regulated and miR-124 was down-regulated in RB tissues and cells. Moreover, knockdown of KCNQ1OT1 reduced the proliferation, migration, and cell cycle, as well as promoted cell apoptosis of Y79 and WERI-Rb-1 cells. Western blot analysis consistently proved cell cycle and apoptosis related protein expression levels. More importantly, KCNQ1OT1 was a sponge of microRNA (miR)-124. MiR-124 inhibition strongly reversed the effect on cell proliferation, cycle arrest, and apoptosis by KCNQ1OT1 knockdown mediation. In addition, KCNQ1OT1 regulated expression of SP1, a direct target of miR-124 in RB. On the other hand, miR-124 inhibitor abrogated the active effect of KCNQ1OT1 silencing on silent information regulator 1 (SIRT1)/c-Jun N-terminal kinase (JNK) signaling pathway. The function of KCNQ1OT1 was verified in vivo. Conclusions: These findings implied that KCNQ1OT1 silencing inhibited RB progression and activated SIRT1/JNK signaling pathway partially by modulating the miR-124/SP1 axis.
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Huang C, Yue W, Li L, Li S, Gao C, Si L, Qi L, Cheng C, Lu M, Tian H. Expression of MiR-608 in Nonsmall Cell Lung Cancer and Molecular Mechanism of Apoptosis and Migration of A549 Cells. BIOMED RESEARCH INTERNATIONAL 2020; 2020:8824519. [PMID: 33426072 PMCID: PMC7773458 DOI: 10.1155/2020/8824519] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 11/03/2020] [Accepted: 11/13/2020] [Indexed: 11/30/2022]
Abstract
OBJECTIVE This Work is aimed at exploring the effect of microRNA (MiR)-608 on the function of nonsmall cell lung cancer (NSCLC) A549 cells and related mechanisms. METHODS Blood samples of 106 NSCLC patients (experimental group) as well as 124 normal people (control group) were selected for relevant investigation. Polymerase chain reaction (PCR) as well as DNA sequencing was used to determine the genotyping of the MiR-608 rs4919510 polymorphism. MiR-608 expression in cells was detected by real-time PCR technology. Western blotting was used to detect changes in protein levels. NSCLC tissues as well as adjacent tissues were explored in 33 patients undergoing surgery. RESULTS MiR-608 rs4919510 does not influence the incidence of NSCLC patients. In addition, MiR-608 expression was downregulated in the tumor tissue of NSCLC patients, while the transcription factor activating enhancer-binding protein 4 (TFAP4) expression was upregulated. MiR-608 promotes DOX- (Doxorubicin-) induced apoptosis by negatively regulating TFAP4 expression in NSCLC tissue. TFAP4 can significantly inhibit the migration of A549 cells. CONCLUSION The findings in this investigation can contribute to the effective treatment of NSCLC patients. Also, the investigation can provide some theoretical support for the application of new targets for NSCLC treatment.
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Affiliation(s)
- Chu Huang
- Department of Thoracic Surgery, Laboratory of Basic Medical Sciences, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250012, China
| | - Weiming Yue
- Department of Thoracic Surgery, Laboratory of Basic Medical Sciences, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250012, China
| | - Lin Li
- Department of Thoracic Surgery, Laboratory of Basic Medical Sciences, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250012, China
| | - Shuhai Li
- Department of Thoracic Surgery, Laboratory of Basic Medical Sciences, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250012, China
| | - Cun Gao
- Department of Thoracic Surgery, Laboratory of Basic Medical Sciences, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250012, China
| | - Libo Si
- Department of Thoracic Surgery, Laboratory of Basic Medical Sciences, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250012, China
| | - Lei Qi
- Department of Thoracic Surgery, Laboratory of Basic Medical Sciences, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250012, China
| | - Chuanle Cheng
- Department of Thoracic Surgery, Laboratory of Basic Medical Sciences, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250012, China
| | - Ming Lu
- Department of Thoracic Surgery, Laboratory of Basic Medical Sciences, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250012, China
| | - Hui Tian
- Department of Thoracic Surgery, Laboratory of Basic Medical Sciences, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250012, China
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Jiang Y, Jin S, Tan S, Xue Y, Cao X. Long noncoding RNA NEAT1 regulates radio-sensitivity via microRNA-27b-3p in gastric cancer. Cancer Cell Int 2020; 20:581. [PMID: 33292252 PMCID: PMC7716475 DOI: 10.1186/s12935-020-01655-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Accepted: 11/16/2020] [Indexed: 01/16/2023] Open
Abstract
BACKGROUND Long noncoding RNA nuclear-enriched abundant transcript 1 (NEAT1) exhibits an oncogenic role in multiple cancers, including gastric cancer (GC). But, the functions of NEAT1 in modulating radio-sensitivity of GC and its potential molecular mechanisms have not been totally elucidated. METHODS qRT-PCR was performed to detect the expressions of NEAT1 and microRNA-27b-3p (miR-27b-3p). Kaplan-Meier survival curves for NEAT1 expression in GC created using KM Plotter. Colony formation assay was used to determine the survival fraction. Cell apoptosis was evaluated by flow cytometry. Luciferase reporter assay was used to verify the relationship between miR-27b-3p and NEAT1. RESULTS NEAT1 was highly expressed while miR-27b-3p was downregulated in GC tissues and cells. NEAT1 was negatively correlated with that of miR-27b-3p and associated with poor overall survival. Moreover, NEAT1 and miR-27b-3p varied inversely after radiation in GC tissues and cells. Loss of NEAT1 or upregulation of miR-27b-3p increased the effect of radiation on cell survival fraction inhibition and apoptosis promotion. In addition, NEAT1 negatively regulated the expression of miR-27b-3p in GC cells. Interestingly, the depletion of miR-27b-3p dramatically attenuated the NEAT1 knockdown-mediated function in AGS and MKN-45 cells treated with radiation in vitro. Similarly, downregulation of NEAT1 enhanced the radiation-mediated inhibition of tumor growth, which was mitigated by decrease of miR-27b-3p. CONCLUSION NEAT1 depletion enhanced radio-sensitivity of GC by negatively regulating miR-27b-3p in vitro and in vivo.
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Affiliation(s)
- Ying Jiang
- Department of Oncology, The People's Hospital of Guizhou, No. 83, Zhongshan East Road, Guiyang, 550002, Guizhou, China
| | - Shan Jin
- Department of Oncology, The People's Hospital of Guizhou, No. 83, Zhongshan East Road, Guiyang, 550002, Guizhou, China
| | - Shisheng Tan
- Department of Oncology, The People's Hospital of Guizhou, No. 83, Zhongshan East Road, Guiyang, 550002, Guizhou, China
| | - Yingbo Xue
- Department of Oncology, The People's Hospital of Guizhou, No. 83, Zhongshan East Road, Guiyang, 550002, Guizhou, China
| | - Xue Cao
- Department of Oncology, The People's Hospital of Guizhou, No. 83, Zhongshan East Road, Guiyang, 550002, Guizhou, China.
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Lapucci A, Perrone G, Di Paolo A, Napoli C, Landini I, Roviello G, Calosi L, Naccarato AG, Falcone A, Bani D, Mini E, Nobili S. PNN and KCNQ1OT1 Can Predict the Efficacy of Adjuvant Fluoropyrimidine-Based Chemotherapy in Colorectal Cancer Patients. Oncol Res 2020; 28:631-644. [PMID: 33208224 PMCID: PMC7962934 DOI: 10.3727/096504020x16056983169118] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The benefit of adjuvant chemotherapy in the early stages of colorectal cancer (CRC) is still disappointing and the prediction of treatment outcome quite difficult. Recently, through a transcriptomic approach, we evidenced a role of PNN and KCNQ1OT1 gene expression in predicting response to fluoropyrimidine-based adjuvant chemotherapy in stage III CRC patients. Thus, the aim of this study was to validate in an independent cohort of stages II–III CRC patients our previous findings. PNN and KCNQ1OT1 mRNA expression levels were evaluated in 74 formalin-fixed paraffin-embedded tumor and matched normal mucosa samples obtained by stages II–III CRC patients treated with fluoropyrimidine-based adjuvant chemotherapy. PININ, the protein encoded by PNN, was immunohistochemically evaluated in 15 tumor and corresponding normal mucosa samples, selected on the basis of a low, medium, or high mRNA expression tumor/mucosa ratio. PNN and KCNQ1OT1 mRNA mean expression levels were significantly higher in tumor compared with normal tissues. Patients with high PNN or KCNQ1OT1 tumor mRNA levels according to ROC-based cutoffs showed a shorter disease-free survival (DFS) compared with patients with low tumor mRNA gene expression. Also, patients with tumor mRNA expression values of both genes below the identified cutoffs had a significantly longer DFS compared with patients with the expression of one or both genes above the cutoffs. In a representative large cohort of stages II–III CRC untreated patients retrieved from GEO datasets, no difference in DFS was observed between patients with high and low PNN or KCNQ1OT1 gene expression levels. These data confirm our previous findings and underscore the relevance of PNN and KCNQ1OT1 expression in predicting DFS in early stages of CRC treated with fluoropyrimidine-based adjuvant chemotherapy. If further validated in a prospective case series, both biomarkers could be used to identify patients who benefit from this treatment and to offer alternative chemotherapy regimens to potential unresponsive patients. In relation to the suggested biological role of PNN and KCNQ1OT1 in CRC, they might also be exploited as potential therapeutic targets.
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Affiliation(s)
- Andrea Lapucci
- Department of Health Sciences, University of FlorenceFlorenceItaly
| | - Gabriele Perrone
- Department of Health Sciences, University of FlorenceFlorenceItaly
| | - Antonello Di Paolo
- Department of Clinical and Experimental Medicine, University of PisaPisaItaly
| | - Cristina Napoli
- Department of Health Sciences, University of FlorenceFlorenceItaly
| | - Ida Landini
- Department of Health Sciences, University of FlorenceFlorenceItaly
| | | | - Laura Calosi
- Department of Experimental and Clinical Medicine, University of FlorenceFlorenceItaly
| | - Antonio Giuseppe Naccarato
- Department of Translational Research and New Technologies in Medicine and Surgery, University of PisaPisaItaly
| | - Alfredo Falcone
- Department of Translational Research and New Technologies in Medicine and Surgery, University of PisaPisaItaly
| | - Daniele Bani
- Department of Experimental and Clinical Medicine, University of FlorenceFlorenceItaly
| | - Enrico Mini
- Department of Health Sciences, University of FlorenceFlorenceItaly
| | - Stefania Nobili
- Department of Health Sciences, University of FlorenceFlorenceItaly
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Chen Y, Zhang Z, Zhu D, Zhao W, Li F. Knockdown of KCNQ1OT1 attenuates cardiac hypertrophy through modulation of the miR-2054/AKT3 axis. J Thorac Dis 2020; 12:4771-4780. [PMID: 33145050 PMCID: PMC7578479 DOI: 10.21037/jtd-20-203] [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] [Indexed: 12/03/2022]
Abstract
Background Persistent cardiac hypertrophy threatens health worldwide. Long non-coding RNAs (lncRNAs) attracted lots of attention in cardiac diseases such as cardiac hypertrophy. In this study, we aimed to study the function of KCNQ1OT1 in cardiac hypertrophy. Methods We first used qRT-PCR to detect the expression of KCNQ1OT1 in Ang-II-induced cardiomyocytes and mouse cardiac hypertrophy models. The function of KCNQ1OT1 was investigated by a loss-of-function test. Analysis of the luciferase reporter gene and RNA pulldown confirmed the interaction between KCNQ1OT1 and miR-2054. The target gene of miR-2054 was predicted by bioinformatics analysis and confirmed by luciferase reporter gene detection. Rescue experiments were performed to evaluate the role of miR-2054/AKT3 in the function of KCNQ1OT1. Results Our results suggested that KCNQ1OT1 was up-regulated in Ang-II-induced cardiomyocytes and transverse aortic constriction (TAC) mice. Knocking down of KCNQ1OT1 can reduce cell size and downregulate the expression of ANF, BNP and α-MHC in response to Ang-II. KCNQ1OT1 has been shown to compete competitively with miR-2054 and has a negative correlation with its expression. The combination of miR-2054 can reverse the effect of the KCNQ1OT1 combination in Ang-II-induced cardiomyocytes. In addition, AKT3 is a target of miR-2054 and mediates its effect on Ang-II-induced cardiomyocytes. Conclusions Knockdown of KCNQ1OT1 could attenuate cardiac hypertrophy through modulation of the miR-2054/AKT3 axis.
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Affiliation(s)
- Yiwei Chen
- Department of Cardiology, Shanghai Children's Medical Center Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Zhifang Zhang
- Department of Cardiology, Shanghai Children's Medical Center Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Diqi Zhu
- Department of Cardiology, Shanghai Children's Medical Center Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Wenchuo Zhao
- Department of Cardiology, Shanghai Children's Medical Center Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Fen Li
- Department of Cardiology, Shanghai Children's Medical Center Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
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Hao S, Liu Y, Li S, Wang J, Zhao L, Wang C, Sun B. Insight into the potential antineoplastic mechanism of phycocyanin in non-small cell lung carcinoma A549 cells based on micro-RNA sequencing. J Funct Foods 2020. [DOI: 10.1016/j.jff.2020.104175] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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Upregulation of KCNQ1OT1 promotes resistance to stereotactic body radiotherapy in lung adenocarcinoma by inducing ATG5/ATG12-mediated autophagy via miR-372-3p. Cell Death Dis 2020; 11:883. [PMID: 33082306 PMCID: PMC7575601 DOI: 10.1038/s41419-020-03083-8] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 08/23/2020] [Accepted: 08/27/2020] [Indexed: 12/22/2022]
Abstract
Stereotactic body radiotherapy (SBRT) has emerged as a standard treatment for non-small-cell lung cancer. However, its therapeutic advantages are limited with the development of SBRT resistance. The SBRT-resistant cell lines (A549/IR and H1975/IR) were established after exposure with hypofractionated irradiation. The differential lncRNAs were screened by microarray assay, then the expression was detected in LUAD tumor tissues and cell lines by qPCR. The influence on radiation response was assessed via in vitro and in vivo assays, and autophagy levels were evaluated by western blot and transmission electron microscopy. Bioinformatics prediction and rescue experiments were used to identify the pathways underlying SBRT resistance. High expression of KCNQ1OT1 was identified in LUAD SBRT-resistant cells and tissues, positively associated with a large tumor, advanced clinical stage, and a lower response rate to concurrent therapy. KCNQ1OT1 depletion significantly resensitized A549/IR and H1975/IR cells to radiation by inhibiting autophagy, which could be attenuated by miR-372-3p knockdown. Furthermore, autophagy-related 5 (ATG5) and autophagy-related 12 (ATG12) were confirmed as direct targets of miR-372-3p. Restoration of either ATG5 or ATG12 abrogated miR-372-3p-mediated autophagy inhibition and radiosensitivity. Our data describe that KCNQ1OT1 is responsible for SBRT resistance in LUAD through induction of ATG5- and ATG12-dependent autophagy via sponging miR-372-3p, which would be a potential strategy to enhance the antitumor effects of radiotherapy in LUAD.
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Yang G, Zhou L, Xu Q, Meng F, Wan Y, Meng X, Wang L, Zhang L. LncRNA KCNQ1OT1 inhibits the radiosensitivity and promotes the tumorigenesis of hepatocellular carcinoma via the miR-146a-5p/ACER3 axis. Cell Cycle 2020; 19:2519-2529. [PMID: 32936716 PMCID: PMC7553536 DOI: 10.1080/15384101.2020.1809259] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is the third leading cause of cancer-related death, and radiotherapy is currently one of the main treatments. Long non-coding RNAs (lncRNAs) are associated with the radiosensitivity and tumorigenesis of HCC. However, the role and molecular mechanism of potassium voltage-gated channel subfamily Q member 1 overlapping transcript 1 (KCNQ1OT1) in HCC are still unclear. The relative expression of KCNQ1OT1, microRNA-146a-5p (miR-146a-5p) and alkaline ceramidase 3 (ACER3) was quantified by quantitative real-time polymerase chain reaction (qRT-PCR). Cell proliferation was measured by 3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyl tetrazolium bromide (MTT) assay. Clonogenic assay was used to assess the radiosensitivity of cells. Cell apoptosis and metastasis were evaluated by flow cytometry and transwell assays, respectively. The protein levels of apoptosis markers, metastasis markers and ACER3 were detected by western blot (WB) analysis. The relationship between miR-146a-5p and KCNQ1OT1 or ACER3 was determined by dual-luciferase reporter assay. Additionally, animal experiments were carried out to explore the effect of KCNQ1OT1 silencing on HCC tumor growth in vivo. KCNQ1OT1 was highly expressed in HCC, and its knockdown hindered the proliferation and metastasis, while increased the radiosensitivity and apoptosis of HCC cells. MiR-146a-5p could interact with KCNQ1OT1, and its inhibition reversed the effects of silenced-KCNQ1OT1 on the radiosensitivity and tumorigenesis of HCC cells. Besides, ACER3 was a target of miR-146a-5p, and its overexpression inversed the effects of miR-146a-5p mimic on the radiosensitivity and tumorigenesis of HCC cells. The expression of ACER3 was regulated by KCNQ1OT1 and miR-146a-5p. Furthermore, KCNQ1OT1 also could reduce the growth of HCC by regulating the miR-146a-5p/ACER3 axis in vivo. Our study suggested that KCNQ1OT1 improved ACER3 expression to regulate the radiosensitivity and tumorigenesis of HCC through sponging miR-146a-5p, indicating that KCNQ1OT1 might be a new therapeutic target for HCC.
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Affiliation(s)
- Ganghua Yang
- Department of Geriatric Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Lijing Zhou
- Department of Geriatric Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Qinhong Xu
- Department of Geriatric Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Fandi Meng
- Department of Geriatric Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Yong Wan
- Department of Geriatric Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Xiankui Meng
- Department of Geriatric Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Lin Wang
- Department of Geriatric Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China,CONTACT Lin Wang ; Lei Zhang
| | - Lei Zhang
- Department of Geriatric Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
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Turjya RR, Khan MAAK, Mir Md. Khademul Islam AB. Perversely expressed long noncoding RNAs can alter host response and viral proliferation in SARS-CoV-2 infection. Future Virol 2020; 15:577-593. [PMID: 33224264 PMCID: PMC7664154 DOI: 10.2217/fvl-2020-0188] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 09/25/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND Regulatory roles of long noncoding RNAs (lncRNAs) during viral infection has become more evident in last decade, but are yet to be explored for SARS-CoV-2. MATERIALS & METHODS We analyzed RNA-seq dataset of SARS-CoV-2 infected lung epithelial cells to identify differentially expressed genes. RESULTS Our analyses uncover 21 differentially expressed lncRNAs broadly involved in cell survival and regulation of gene expression. These lncRNAs can directly interact with six differentially expressed protein-coding genes, and ten host genes that interact with SARS-CoV-2 proteins. Also, they can block the suppressive effect of nine microRNAs induced in viral infections. CONCLUSION Our investigation determines that deregulated lncRNAs in SARS-CoV-2 infection are involved in viral proliferation, cellular survival, and immune response, ultimately determining disease outcome.
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Affiliation(s)
- Rafeed Rahman Turjya
- Department of Genetic Engineering & Biotechnology, University of Dhaka, Dhaka, Bangladesh
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Chen QH, Li B, Liu DG, Zhang B, Yang X, Tu YL. LncRNA KCNQ1OT1 sponges miR-15a to promote immune evasion and malignant progression of prostate cancer via up-regulating PD-L1. Cancer Cell Int 2020; 20:394. [PMID: 32821247 PMCID: PMC7429893 DOI: 10.1186/s12935-020-01481-8] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Accepted: 08/04/2020] [Indexed: 12/19/2022] Open
Abstract
Background We focused on the KCNQ1OT1/miR-15a/PD-L1 axis and explored its significance in regulating immune evasion and malignant behaviors of prostate cancer (PC) cells. Methods The expression levels of KCNQ1OT1, miR-15a, PD-L1, and CD8 in cells or tissues were examined by RT-qPCR, western blot or immunohistochemistry (IHC) assays. The direct regulations between KCNQ1OT1, miR-15a and PD-L1 were validated by luciferase reporter assay. PC cells were co-cultured with CD8+ T cells to study the immune evasion. Proliferation, apoptosis, migration and invasion abilities were detected by MTT, flow cytometry, wound healing and Transwell assays, respectively. The cytotoxicity of CD8+ T cells was determined by LDH cytotoxicity Kit. Epithelial–mesenchymal transition (EMT) and Ras/ERK signaling markers were evaluated by western blot. Results KCNQ1OT1, PD-L1 and CD8 were increased, while miR-15a was decreased in PC tissues. MiR-15a directly bound to the 3′-UTR of PD-L1 and inhibited the expression of PD-L1. Overexpressing miR-15a in PC cells was sufficient to promote cytotoxicity and proliferation, while inhibit apoptosis of CD8+ T cells, and also suppressed viability, migration, invasion and EMT while promoted apoptosis of PC cells. The above anti-tumor effects of miR-15a were reversed by overexpressing PD-L1. KCNQ1OT1 sponged miR-15a and released its inhibition on PD-L1. Functionally, KCNQ1OT1 in PC cells was essential for suppressing the cytotoxicity of CD8+ T cells and maintaining multiple malignant phenotypes of PC cells. The Ras/ERK signaling was suppressed after overexpressing miR-15a or knocking down KCNQ1OT1. Conclusions LncRNA KCNQ1OT1 sponges miR-15a to promote immune evasion and malignant progression of PC via up-regulating PD-L1.
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Affiliation(s)
- Qi-Hua Chen
- Department of Andrology, The First Hospital, Hunan University of Chinese Medicine, No.95, Shaoshan Middle Road, Yuhua District, Changsha, 410007 Hunan People's Republic of China
| | - Bo Li
- Department of Andrology, The First Hospital, Hunan University of Chinese Medicine, No.95, Shaoshan Middle Road, Yuhua District, Changsha, 410007 Hunan People's Republic of China
| | - De-Guo Liu
- Graduate School, Hunan University of Chinese Medicine, Changsha, 410208 People's Republic of China
| | - Biao Zhang
- Graduate School, Hunan University of Chinese Medicine, Changsha, 410208 People's Republic of China
| | - Xian Yang
- Department of Dermatology, The First Hospital, Hunan University of Chinese Medicine, Changsha, 410007 People's Republic of China
| | - Ya-Ling Tu
- Graduate School, Hunan University of Chinese Medicine, Changsha, 410208 People's Republic of China
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Jiang Q, Xing W, Cheng J, Yu Y. Long Non-Coding RNA TP73-AS1 Promotes the Development of Lung Cancer by Targeting the miR-27b-3p/LAPTM4B Axis. Onco Targets Ther 2020; 13:7019-7031. [PMID: 32764992 PMCID: PMC7381779 DOI: 10.2147/ott.s234443] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Accepted: 02/17/2020] [Indexed: 12/12/2022] Open
Abstract
Purpose Long non-coding RNA P73 antisense RNA 1T (TP73-AS1) is a newly discovered lncRNA involved in the occurrence and development of several cancers. However, its role in lung cancer has not been well investigated yet. Methods The expressions of TP73-AS1, microRNA-27b-3p (miR-27b-3p) and lysosomal-associated protein transmembrane-4 Beta (LAPTM4B) were detected by quantitative real-time polymerase chain reaction (qRT-PCR). The cell proliferation, apoptosis, migration and invasion were detected by 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT), Annexin V-FITC/PI and transwell assays, respectively. Tumor xenografts were applied to explore the role of TP73-AS1 in vivo. The target relationship was predicted by StarBase v.2.0 or TargetScan and confirmed by luciferase reporter assay. Pearson's coefficient assay was applied to assess the expression correlation between two groups. Protein expression levels were detected by Western blot. Results We found that TP73-AS1 was strikingly up-regulated in lung cancer tissues and cells. TP73-AS1 depletion inhibited the growth and metastasis of lung cancer cells in vitro. Furthermore, TP73-AS1 could act as an endogenous sponge by directly binding miR-27b-3p, and a notable inverse correlation between them was also discovered. Importantly, knockdown of miR-27b-3p could reverse the inhibitory effects of TP73-AS1 depletion on the growth and metastasis of lung cancer cells. Besides, LAPTM4B was directly targeted by miR-27b-3p and could be co-regulated by TP73-AS1 and miR-27b-3p in lung cancer cells. Silencing TP73-AS1 hampered tumor growth by regulating miR-27b-3p/LAPTM4B axis in vivo. Conclusion TP73-AS1 promoted the progression of lung cancer through regulating miR-27b-3p/LAPTM4B axis and it might be a potential target for diagnosis and treatment of lung cancer.
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Affiliation(s)
- Qingfeng Jiang
- Department of Thoracic Surgery, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, Henan, People's Republic of China
| | - Wenqun Xing
- Department of Thoracic Surgery, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, Henan, People's Republic of China
| | - Jinhua Cheng
- Department of Thoracic Surgery, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, Henan, People's Republic of China
| | - Yongkui Yu
- Department of Thoracic Surgery, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, Henan, People's Republic of China
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Duan Q, Cai L, Zheng K, Cui C, Huang R, Zheng Z, Xie L, Wu C, Yu X, Yu J. lncRNA KCNQ1OT1 knockdown inhibits colorectal cancer cell proliferation, migration and invasiveness via the PI3K/AKT pathway. Oncol Lett 2020; 20:601-610. [PMID: 32565985 PMCID: PMC7286112 DOI: 10.3892/ol.2020.11619] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2019] [Accepted: 04/01/2020] [Indexed: 12/12/2022] Open
Abstract
Colorectal cancer (CRC) is one of the most common primary malignancies worldwide. Numerous studies have demonstrated that long non-coding RNAs (lncRNAs) are considered as crucial regulators of tumor progression. In particular, upregulation of the lncRNA KCNQ1OT1 was reported in various types of malignancy as a promoter of tumor progression. However, the role and underlying mechanism of KCNQ1OT1 in CRC remain unclear. Thus, the present study aimed to investigate the role of KCNQ1OT1 in colorectal cancer through GEPIA, reverse transcription-quantitative PCR (RT-qPCR) and western blot analyses, and cell assays. GEPIA analysis demonstrated that high expression levels of KCNQ1OT1 in CRC tissues predicted a poor prognosis for patients with CRC. KCNQ1OT1 was overexpressed in CRC tissues and cell lines via RT-qPCR analysis. Furthermore, the results from the cell viability assay, colony formation assay, wound healing assay, invasion assay and flow cytometric analysis demonstrated that KCNQ1OT1 knockdown significantly inhibited CRC cell proliferation, migration and invasiveness, and promoted CRC cell apoptosis, leading to cell cycle arrest. Western blot analysis demonstrated that KCNQ1OT1 knockdown inhibited the PI3K/AKT signaling pathway. These results suggest that KCNQ1OT1 may act as an oncogene through the PI3K/AKT signaling pathway in CRC.
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Affiliation(s)
- Qiaobin Duan
- Department of Hernia and Abdominal Surgery, The First People's Hospital of FoShan, Affiliated FoShan Hospital of Sun Yat-sen University, Guangdong, Foshan 528000, P.R. China
| | - Lianxu Cai
- Department of General Surgery, Zhujiang Hospital, Southern Medical University, Guangdong, Guangzhou 510282, P.R. China
| | - Kehong Zheng
- Department of General Surgery, Zhujiang Hospital, Southern Medical University, Guangdong, Guangzhou 510282, P.R. China
| | - Chunhui Cui
- Department of General Surgery, Zhujiang Hospital, Southern Medical University, Guangdong, Guangzhou 510282, P.R. China
| | - Renli Huang
- Department of General Surgery, Zhujiang Hospital, Southern Medical University, Guangdong, Guangzhou 510282, P.R. China
| | - Zheng Zheng
- Department of General Surgery, Zhujiang Hospital, Southern Medical University, Guangdong, Guangzhou 510282, P.R. China
| | - Lang Xie
- Department of General Surgery, Zhujiang Hospital, Southern Medical University, Guangdong, Guangzhou 510282, P.R. China
| | - Cheng Wu
- Department of General Surgery, Zhujiang Hospital, Southern Medical University, Guangdong, Guangzhou 510282, P.R. China
| | - Xiang Yu
- Department of General Surgery, Zhujiang Hospital, Southern Medical University, Guangdong, Guangzhou 510282, P.R. China
| | - Jinlong Yu
- Department of General Surgery, Zhujiang Hospital, Southern Medical University, Guangdong, Guangzhou 510282, P.R. China
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Wang Y, Zhang L, Yang J, Sun R. LncRNA KCNQ1OT1 promotes cell proliferation, migration and invasion via regulating miR-129-5p/JAG1 axis in non-small cell lung cancer. Cancer Cell Int 2020; 20:144. [PMID: 32377169 PMCID: PMC7195752 DOI: 10.1186/s12935-020-01225-8] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Accepted: 04/20/2020] [Indexed: 12/17/2022] Open
Abstract
Background Non-small cell lung cancer (NSCLC) is the most deadly cancer worldwide. LncRNA KCNQ1OT1 has been reported to be involved in the progression of various tumors, including NSCLC. However, the precise mechanism of KCNQ1OT1 in NSCLC requires further investigation. Methods The expression levels of KCNQ1OT1, miR-129-5p and JAG1 were detected by qRT-PCR or western blot. Kaplan–Meier survival analysis was used to assess the correlation between KCNQ1OT1 expression and the overall survival of NSCLC patients. CCK-8 assay was used to measure cell viability. Cell migration and invasion were detected by transwell assay. The targets of KCNQ1OT1 and miR-129-5p were predicted by bioinformatics, which was confirmed by dual-luciferase reporter assay or pull-down assay. Results KCNQ1OT1 expression was significantly enhanced, while miR-129-5p expression was dramatically reduced in NSCLC tissues and cells. Higher KCNQ1OT1 shortened overall survival and was positively associated with tumor stage and lymph node metastasis. KCNQ1OT1 knockdown inhibited proliferation, migration and invasion of NSCLC cells. Inhibition of miR-129-5p attenuated the inhibition of NSCLC cell viability, migration and invasion induced by KCNQ1OT1 knockdown. In addition, JAG1 was confirmed as a target of miR-129-5p. Knockdown of JAG1 reversed the effects of miR-129-5p knockdown on NSCLC progression. KCNQ1OT1 regulated JAG1 expression by sponging miR-129-5p in NSCLC cells. Conclusion KCNQ1OT1 induced proliferation, migration and invasion of NSCLC cells by sponging miR-129-5p and regulating JAG1 expression, indicating that KCNQ1OT1 was a therapeutic target for NSCLC.
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Affiliation(s)
- Yan Wang
- Department of Pulmonary and Critical Care Medicine, The Guangdong Second Provincial General Hospital, No. 466 Xingang Middle Rd, Haizhu District, 510000 Guangzhou, China
| | - Lei Zhang
- 2Department of Transplant Centre, The Second Affiliated Hospital of Guangzhou Medical University, 510000 Guangzhou, China
| | - Jiasheng Yang
- Department of Pulmonary and Critical Care Medicine, The Guangdong Second Provincial General Hospital, No. 466 Xingang Middle Rd, Haizhu District, 510000 Guangzhou, China
| | - Ruilin Sun
- Department of Pulmonary and Critical Care Medicine, The Guangdong Second Provincial General Hospital, No. 466 Xingang Middle Rd, Haizhu District, 510000 Guangzhou, China
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LncRNA KCNQ1OT1 sponges miR-34c-5p to promote osteosarcoma growth via ALDOA enhanced aerobic glycolysis. Cell Death Dis 2020; 11:278. [PMID: 32332718 PMCID: PMC7181648 DOI: 10.1038/s41419-020-2485-1] [Citation(s) in RCA: 97] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 04/06/2020] [Accepted: 04/07/2020] [Indexed: 02/07/2023]
Abstract
Metabolic switch from oxidative phosphorylation to aerobic glycolysis, which is also called the Warburg effect, is a hallmark of osteosarcoma (OS) and leads to the enhancement of cell chemoresistance, growth, metastasis, and invasion. Emerging evidence indicates that long non-coding RNA (lncRNA) plays a crucial role in the Warburg effect of cancer cells. Here, we report that lncRNA KCNQ1OT1 was upregulated in OS. Meanwhile, functional experiments demonstrated that the KCNQ1OT1 facilitated proliferation and suppressed apoptosis of OS cells. In addition, KCNQ1OT1 contributed to the Warburg effect by stimulating aldolase A (ALDOA) expression. Furthermore, using bioinformatics analysis, luciferase reporter, RNA immunoprecipitation, and RNA pull-down assay, we identified that KCNQ1OT1 functions as a competing endogenous RNA (ceRNA) by sponging miR-34c-5p, which inhibited ALDOA expression by directly targeting its 3'UTR. Taken together, these data identified a key role of KCNQ1OT1 in glucose metabolism reprogramming of OS. Targeting the KCNQ1OT1/miR-34c-5p/ALDOA axis may be a potential therapeutic target in OS treatment.
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Lu X, Wang F, Fu M, Li Y, Wang L. [ARTICLE WITHDRAWN] Long Noncoding RNA KCNQ1OT1 Accelerates the Progression of Ovarian Cancer via MicroRNA-212-3/LCN2 Axis. Oncol Res 2020; 28:135-146. [PMID: 31653278 PMCID: PMC7851512 DOI: 10.3727/096504019x15719983040135] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
ARTICLE WITHDRAWN: This article was withdrawn by the authors with the following Withdrawal Statement - The integrity of the current study is not acceptable. The authors intend to enrich the study to make it more valuable. Thus, the authors want to withdraw the current study. Please accept our apologies for this inconvenience and we hope for your understanding. Yours sincerely (on behalf of the authors), Xiaoqin Lu.
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Affiliation(s)
- Xiaoqin Lu
- *Department of Obstetrics and Gynecology, the Second Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, P.R. China
| | - Fuying Wang
- *Department of Obstetrics and Gynecology, the Second Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, P.R. China
| | - Meizhou Fu
- †Education and Training Department, People’s Hospital of Zhengzhou University, Zhengzhou, Henan, P.R. China
| | - Yuankun Li
- *Department of Obstetrics and Gynecology, the Second Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, P.R. China
| | - Lijun Wang
- *Department of Obstetrics and Gynecology, the Second Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, P.R. China
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Yin Z, Liao L, Mao S, Liu Y, Xie T, Yu H, Zhao W. Knockdown of lncRNA KCNQ1OT1 inhibits glioma progression by regulating miR-338-3p/RRM2. Open Life Sci 2020. [DOI: 10.1515/biol-2020-0012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
AbstractThe dysregulated lncRNA play essential roles in glioma development. This study aimed to investigate the role and mechanism of lncRNA potassium voltage-gated channel subfamily Q member 1 opposite strand/ antisense transcript 1 (KCNQ1OT1) in glioma progression. Tumor tissues and adjacent normal samples were collected from 30 glioma patients. The expression levels of lncRNA KCNQ1OT1, microRNA (miR)-338-3p and ribonucleotide reductase M2 (RRM2) were detected by quantitative real-time polymerase chain reaction or western blot analyses. Levels of cell viability, apoptosis, cell migration and invasion in glioma cell lines were determined using cell counting kit-8, flow cytometry with annexin V-FITC and trans-well assays, respectively. The role of KCNQ1OT1 in glioma development in vivo was investigated using a xenograft model. The target association between miR-338-3p and KCNQ1OT1 or RRM2 was validated by luciferase reporter assay. The results found that expression of KCNQ1OT1 was enhanced in glioma tissues and cells, and KCNQ1OT1 knockdown inhibited cell viability, migration and invasion, and xenograft tumor growth, but promoted apoptosis. miR-338-3p was targeted via KCNQ1OT1 and could reverse the effect of KCNQ1OT1 on glioma progression. RRM2 was targeted via miR-338-3p and attenuated the suppressive effect of miR-338-3p on glioma cell viability, migration and invasion. Besides, KCNQ1OT1 overexpression increased RRM2 expression, and this event was weakened via miR-338-3p up-regulation. In conclusion, the present finding suggest that silencing of KCNQ1OT1 can suppress the development and progression of glioma by up-regulating miR-338-3p and down-regulating RRM2.
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Affiliation(s)
- Zhangxing Yin
- Department of Neurosurgery, Qianjiang Central Hospital of Hubei Province, No. 22, Zhanghuazhong Road, Qianjiang, 433100, Hubei, China
| | - Liqing Liao
- Department of Neurosurgery, Qianjiang Central Hospital of Hubei Province, No. 22, Zhanghuazhong Road, Qianjiang, 433100, Hubei, China
| | - Sheng Mao
- Department of Neurosurgery, Qianjiang Central Hospital of Hubei Province, No. 22, Zhanghuazhong Road, Qianjiang, 433100, Hubei, China
| | - Ying Liu
- Department of Neurosurgery, Qianjiang Central Hospital of Hubei Province, No. 22, Zhanghuazhong Road, Qianjiang, 433100, Hubei, China
| | - Tao Xie
- Department of Neurosurgery, Qianjiang Central Hospital of Hubei Province, No. 22, Zhanghuazhong Road, Qianjiang, 433100, Hubei, China
| | - Hua Yu
- Department of Neurosurgery, Qianjiang Central Hospital of Hubei Province, No. 22, Zhanghuazhong Road, Qianjiang, 433100, Hubei, China
| | - Wenxu Zhao
- Department of Neurosurgery, Qianjiang Central Hospital of Hubei Province, No. 22, Zhanghuazhong Road, Qianjiang, 433100, Hubei, China
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Chen L, Xiong Y, Yan C, Zhou W, Endo Y, Xue H, Hu Y, Hu L, Leng X, Liu J, Lin Z, Mi B, Liu G. LncRNA KCNQ1OT1 accelerates fracture healing via modulating miR-701-3p/FGFR3 axis. FASEB J 2020; 34:5208-5222. [PMID: 32060985 DOI: 10.1096/fj.201901864rr] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 01/13/2020] [Accepted: 02/02/2020] [Indexed: 12/14/2022]
Abstract
Emerging evidence highlights the role of the long noncoding RNA (lncRNA) KCNQ1OT1 in fracture healing. Osteoblast proliferation, migration, and survival are pivotal during this process. In this study, we aimed to improve our understanding of the regulatory role of lncRNA KCNQ1OT1 during osteoblast proliferation, migration, and survival. We searched the gene expression omnibus databases and LncBase Experimental V.2 to identify key microRNAs (miRNAs) targets of KCNQ1OT1. MiR-701-3p was selected as a differentially expressed miRNA and RNA immunoprecipitation assays were performed to verify its interaction with KCNQ1OT1. Fibroblast growth factor receptor 3 (FGFR3) was also identified as a target of miR-701-3p. We further identified KCNQ1OT1 as a competing endogenous RNA of miR-701-3p that could influence osteoblast proliferation, migration, and apoptosis in vitro and in vivo. Taken together, our results indicate that the KCNQ1OT1/miR-701-3p/FGFR3 axis is an important regulator of osteoblast proliferation, migration, and apoptosis, and provide a new therapeutic avenue for fracture healing.
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Affiliation(s)
- Lang Chen
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yuan Xiong
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Chenchen Yan
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wu Zhou
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yori Endo
- Division of Plastic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Hang Xue
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yiqiang Hu
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Liangcong Hu
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xingzhu Leng
- Department of Biomedical Sciences, UMC Utrecht, Utrecht University, Utrecht, the Netherlands
| | - Jing Liu
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ze Lin
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Bobin Mi
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Guohui Liu
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Mu X, Wu H, Liu J, Hu X, Wu H, Chen L, Liu W, Luo S, Zhao Y. Long noncoding RNA TMPO-AS1 promotes lung adenocarcinoma progression and is negatively regulated by miR-383-5p. Biomed Pharmacother 2020; 125:109989. [PMID: 32062549 DOI: 10.1016/j.biopha.2020.109989] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Revised: 01/29/2020] [Accepted: 01/31/2020] [Indexed: 12/26/2022] Open
Abstract
Long noncoding RNAs (lncRNAs) play critical roles in the pathogenesis of various diseases, including a variety of tumors. Nevertheless, its functional roles and underlying molecular basis for their dysregulation in lung adenocarcinoma (LUAD) are largely unknown. Herein, in our study, we identified that lncRNA TMPO-AS1 is significantly upregulated in LUAD tissues and cell lines. Knockdown of TMPO-AS1 remarkably suppressed LUAD cell growth, induced apoptosis as well as G1/S arrest, and inhibited LUAD cell invasion, whereas overexpression of TMPO-AS1 exerts the opposite effects. Next, we implemented online database analysis tools to find that mir-383-5p could target TMPO-AS1, and our data showed that TMPO-AS1 was negatively correlated with mir-383-5p in LUAD specimens. We found that inhibiting miR-383-5p expression led to a marked upregulation of TMPO-AS1 level, while overexpression of miR-383-5p markedly suppressed TMPO-AS1's expression and function, suggesting that TMPO-AS1 is negatively regulated by miR-383-5p. In addition, we confirmed that miR-383-5p directly targeted TMPO-AS1 by binding to microRNA binding sites in the TMPO-AS1 sequence with a luciferase reporter and RIP assays. Besides, the inhibition of TMPO-AS1 significantly suppressed the tumorigenesis ability of LUAD cells in vivo. Together, these results demonstrate that TMPO-AS1 could be considered as a potential therapeutic target for LUAD patients.
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Affiliation(s)
- Xiaoqian Mu
- Department of Internal Medicine, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China
| | - Hongbo Wu
- Department of Internal Medicine, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China
| | - Jie Liu
- Department of Internal Medicine, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China
| | - Xiufeng Hu
- Department of Internal Medicine, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China
| | - Huijuan Wu
- Department of Internal Medicine, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China
| | - Lijuan Chen
- Department of Internal Medicine, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China
| | - Wenjing Liu
- Department of Internal Medicine, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China
| | - Suxia Luo
- Department of Internal Medicine, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China.
| | - Yanqiu Zhao
- Department of Internal Medicine, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China.
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Fang C, Wang L, Gong C, Wu W, Yao C, Zhu S. Long non-coding RNAs: How to regulate the metastasis of non-small-cell lung cancer. J Cell Mol Med 2020; 24:3282-3291. [PMID: 32048814 PMCID: PMC7131947 DOI: 10.1111/jcmm.15054] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 01/15/2020] [Accepted: 01/28/2020] [Indexed: 12/15/2022] Open
Abstract
Non–small‐cell lung cancer (NSCLC) has become the most lethal human cancer because of the high rate of metastasis. Hence, clarifying the molecular mechanism underlying NSCLC metastasis is very important to improve the prognosis of patients with NSCLC. Long non‐coding RNAs (LncRNAs) are a class of RNA molecules longer than 200 nucleotides, which can participate in diverse biological processes. About 18% of human LncRNAs were recently found to be associated with tumours. Many studies indicated that aberrant expression of LncRNAs played key roles in the progression and metastasis of NSCLC. According to the function in tumours, LncRNAs can be divided into two classes: oncogenic LncRNAs and tumour‐suppressor LncRNAs. In this review, we summarized the main molecular mechanism of LncRNAs regulating NSCLC metastasis, including three aspects: (a) LncRNAs interact with miRNAs as ceRNAs; (b) LncRNAs bind with target proteins; and (c) LncRNAs participate in the transduction of different signal pathways. Then, LncRNAs can exert their function to regulate the metastasis of NSCLC through influencing the progression of epithelial‐mesenchymal transition (EMT) and the properties of cancer stem cell (CSC). But, it is necessary to do some further research to demonstrate the LncRNAs particular regulatory mechanism of inhibiting the metastasis of NSCLC and explore new drugs targeting LncRNAs.
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Affiliation(s)
- Cheng Fang
- Center for Traditional Chinese Medicine and Immunology Research, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Department of Immunology and Pathogenic Biology, School of Basic Medical Sciences, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Lixin Wang
- Center for Traditional Chinese Medicine and Immunology Research, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Department of Immunology and Pathogenic Biology, School of Basic Medical Sciences, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Chenyuan Gong
- Center for Traditional Chinese Medicine and Immunology Research, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Laboratory of Integrative Medicine, School of Basic Medical Sciences, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Wenbin Wu
- Experiment Animal Center, Experiment Center for Science and Technology, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Chao Yao
- Center for Traditional Chinese Medicine and Immunology Research, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Department of Immunology and Pathogenic Biology, School of Basic Medical Sciences, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Shiguo Zhu
- Center for Traditional Chinese Medicine and Immunology Research, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Department of Immunology and Pathogenic Biology, School of Basic Medical Sciences, Shanghai University of Traditional Chinese Medicine, Shanghai, China
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miR-24-3p induces human intervertebral disc degeneration by targeting insulin-like growth factor binding protein 5 and the ERK signaling pathway. Life Sci 2020; 243:117288. [DOI: 10.1016/j.lfs.2020.117288] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Revised: 01/03/2020] [Accepted: 01/07/2020] [Indexed: 12/11/2022]
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LncRNA KCNQ1OT1 regulates microRNA-9-LMX1A expression and inhibits gastric cancer cell progression. Aging (Albany NY) 2020; 12:707-717. [PMID: 31915311 PMCID: PMC6977675 DOI: 10.18632/aging.102651] [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: 08/28/2019] [Accepted: 12/24/2019] [Indexed: 12/23/2022]
Abstract
LMX1A (LIM homeobox transcription factor 1α) is a tumor suppressor protein. Our previous study has shown that microRNA-9 (“miR-9”), being upregulated in human gastric cancer (GC), targets LMX1A to promote GC cell progression. Through searching long non-coding RNA (LncRNA) database, we identified that LncRNA KCNQ1OT1 is the competing endogenous RNA (ceRNA) of miR-9. KCNQ1OT1 putatively targets miR-9. Its level is downregulated in human GC tissues. In AGS cells and primary human GC cells, forced overexpression of KCNQ1OT1, by a lentiviral construct, induced miR-9 downregulation and LMX1A upregulation. Furthermore, KCNQ1OT1 overexpression inhibited GC cell survival, proliferation, migration and invasion, but inducing apoptosis activation. Contrarily, KCNQ1OT1 silencing, by targeted siRNAs, induced miR-9 accumulation and LMX1A downregulation. Consequently, GC cell proliferation, migration and invasion were enhanced. Importantly, KCNQ1OT1 overexpression or silencing was ineffective in LMX1A knockout AGC cells. Taken together, KCNQ1OT1 inhibits GC cell progression via regulating miR-9 and LMX1A expression.
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Zhu B, Cheng X, Jiang Y, Cheng M, Chen L, Bao J, Tang X. Silencing of KCNQ1OT1 Decreases Oxidative Stress and Pyroptosis of Renal Tubular Epithelial Cells. Diabetes Metab Syndr Obes 2020; 13:365-375. [PMID: 32104033 PMCID: PMC7025682 DOI: 10.2147/dmso.s225791] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Accepted: 12/17/2019] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Long noncoding RNAs (lncRNAs) can regulate the progression of DN. This research aimed to study the effect of lncRNA KCNQ1OT1 on the oxidative stress and pyroptosis of the renal tubular epithelial cells induced by high glucose (HG). METHODS RT-qPCR analysis detected the KCNQ1OT1 expression in serum with DN and HG-induced HK-2 cells, detect the expression of NLRP3, cleaved-caspase1, P-caspase1, IL-1β, p-IL-1β and GSDMD-N in HG-induced HK-2 cells, and confirm the transfection effects. The expression of NLRP3, cleaved-caspase1, P-caspase1, IL-1β, p-IL-1β and GSDMD-N in HG-induced HK-2 cells was also analyzed by Western blot analysis. ELISA assay detected the levels of TNF-α, IL-6 and MCP-1. The levels of ROS, MDA and SOD were determined by respective ELISA kits and ROS was also detected by the ROS assay kit (containing DCFH-DA). RESULTS We found that KCNQ1OT1 was increased in the plasma of patients with DN and HG-induced HK-2 cells and KCNQ1OT1 interference could decrease the inflammation, oxidative stress and pyroptosis of HG-induced HK-2 cells. In addition, KCNQ1OT1 directly targets miR-506-3p. MiR-506-3p was downregulated in the plasma of patients with DN and HG-induced HK-2 cells and KCNQ1OT1 interference promoted the expression of miR-506-3p. MiR-506-3p overexpression suppressed the inflammation, oxidative stress and pyroptosis of HG-induced HK-2 cells. CONCLUSION This study demonstrated that downregulation of KCNQ1OT1 inhibited the inflammation, oxidative stress and pyroptosis of HG-induced HK-2 cells by up-regulating the expression of miR-506-3p, which provide new insights into the treatment of DN.
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Affiliation(s)
- Bei Zhu
- Department of Endocrinology, The First Affiliated Hospital of Soochow University, Suzhou 215006, People’s Republic of China, Department of Endocrinology, Rugao People’s Hospital, Nantong226500, People’s Republic of China
| | - Xingbo Cheng
- Department of Endocrinology, The First Affiliated Hospital of Soochow University, Suzhou215006, People’s Republic of China
- Correspondence: Xingbo Cheng Department of Endocrinology, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou215006, People’s Republic of China Email
| | - Yilan Jiang
- Department of Endocrinology, Rugao People’s Hospital, Nantong226500, People’s Republic of China
| | - Ming Cheng
- School of Rail Transportation, Soochow University, Suzhou215131, People’s Republic of China
- Ming Cheng School of Rail Transportation, Soochow University, 8 Ji Xue Road., Xiangcheng District, Suzhou215131, People’s Republic of China Email
| | - Luping Chen
- Department of Endocrinology, Rugao People’s Hospital, Nantong226500, People’s Republic of China
| | - Jiajun Bao
- Department of Endocrinology, Rugao People’s Hospital, Nantong226500, People’s Republic of China
| | - Xiaofeng Tang
- Department of Endocrinology, Rugao People’s Hospital, Nantong226500, People’s Republic of China
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