1
|
Luo J, Xu J, Ou L, Zhou Y, Yun H, Yang Y, Wu X, Wang Y. Role of hypermethylated-lncRNAs in the prognosis of bladder cancer patients. J Int Med Res 2021; 49:3000605211049946. [PMID: 34617815 PMCID: PMC8504649 DOI: 10.1177/03000605211049946] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
OBJECTIVE To explore the hypermethylated long non-coding (lnc)RNAs involved in bladder carcinogenesis and prognosis. METHODS Reduced representation bisulfite sequencing and RNA sequencing were performed on five paired tumor and adjacent normal tissue samples from bladder cancer patients. The differentially methylated regions around transcription start sites and differentially expressed genes, including lncRNAs, were analyzed. Correlations between DNA methylation modifications and the expression of lncRNAs were examined. Survival analysis was surveyed on the GEPIA web server. RESULTS We identified 19,560 hypomethylated and 68,781 hypermethylated differentially methylated regions around transcription start sites in bladder cancer tissues. In total, 2321 differentially expressed genes were found in bladder tumors, among which, 367 were upregulated and 1954 were downregulated. There were 141 downregulated genes involving eight lncRNAs that were consistently hypermethylated, while 24 upregulated genes were consistently hypomethylated. Survival analysis demonstrated that hypermethylation of lncRNAs LINC00683 and MSC-AS1 were associated with poor overall survival in bladder cancer patients. CONCLUSION Some lncRNAs are controlled by DNA methylation in bladder cancer and they might be important factors in bladder carcinogenesis. Hypermethylated lncRNAs including LINC00683 and MSC-AS1 have the potential to be prognostic biomarkers for bladder cancer.
Collapse
Affiliation(s)
- Junhua Luo
- Department of Urology, 74573Peking University Shenzhen Hospital, Peking University Shenzhen Hospital, Shenzhen, P.R. China
| | - Jinming Xu
- Department of Urology, 74573Peking University Shenzhen Hospital, Peking University Shenzhen Hospital, Shenzhen, P.R. China
| | - Longhua Ou
- Department of Urology, 74573Peking University Shenzhen Hospital, Peking University Shenzhen Hospital, Shenzhen, P.R. China
| | - Yingchen Zhou
- Department of Urology, 74573Peking University Shenzhen Hospital, Peking University Shenzhen Hospital, Shenzhen, P.R. China
| | - Haichao Yun
- Department of Urology, 74573Peking University Shenzhen Hospital, Peking University Shenzhen Hospital, Shenzhen, P.R. China
| | - Yu Yang
- Department of Urology, 74573Peking University Shenzhen Hospital, Peking University Shenzhen Hospital, Shenzhen, P.R. China
| | - Xionghui Wu
- Department of Urology, 74573Peking University Shenzhen Hospital, Peking University Shenzhen Hospital, Shenzhen, P.R. China
| | - Yan Wang
- Department of Urology, 74573Peking University Shenzhen Hospital, Peking University Shenzhen Hospital, Shenzhen, P.R. China
| |
Collapse
|
2
|
Li L, Li L, Hu L, Li T, Xie D, Liu X. Long non‑coding RNA HAND2‑AS1/miR‑106a/PTEN axis re‑sensitizes cisplatin‑resistant ovarian cells to cisplatin treatment. Mol Med Rep 2021; 24:762. [PMID: 34476500 PMCID: PMC8436234 DOI: 10.3892/mmr.2021.12402] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Accepted: 05/05/2021] [Indexed: 01/20/2023] Open
Abstract
Cisplatin (DDP) resistance in patients suffering from ovarian cancer is a considerable hurdle to successful treatment. The present study aimed to identify a possible long non‑coding RNA (lncRNA)‑microRNA (miRNA)‑mRNA axis participating in ovarian cancer DDP‑resistance based on the critical roles of non‑coding RNAs, including lncRNAs and miRNAs, in carcinogenesis. According to online data and experimental results, lncRNA HAND2‑AS1 expression was significantly downregulated within ovarian carcinoma, especially within recurrent and DDP‑resistant ovarian carcinoma. The expression of HAND2‑AS1 was also shown to be markedly inhibited in SKOV3/DDP (DDP) cells with resistance to DDP. In SKOV3/DDP cells, HAND2‑AS1 overexpression inhibited cell viability and promoted cell apoptosis upon DDP treatment through the Bcl‑2/caspase‑3 apoptotic signaling. It was hypothesized that PTEN mRNA expression was also markedly inhibited in SKOV3/DDP ovarian cancer cells, while HAND2‑AS1 overexpression rescued PTEN proteins and blocked PI3K/AKT signaling activation. Moreover, miR‑106a was found to bind directly to PTEN 3' UTR and HAND2‑AS1. Upon DDP treatment, miR‑106a overexpression in SKOV3/DDP cells promoted cell viability. It inhibited cell apoptosis through the Bcl‑2/caspase‑3 apoptotic signaling pathway and downregulated the protein levels of PTEN and upregulated PI3K/AKT signaling activity. Furthermore, miR‑106a overexpression partially reversed the effect of HAND2‑AS1 overexpression upon PTEN proteins and SKOV3/DDP cell proliferation upon DDP treatment. In conclusion, a lncRNA HAND2‑AS1/miR‑106a/PTEN axis that re‑sensitizes DDP‑resistant SKOV3/DDP cells to DDP treatment has been established.
Collapse
Affiliation(s)
- Lijun Li
- Obstetrics and Gynecology Department, The Fourth Hospital of Changsha, Changsha Hospital of Hunan Normal University, Changsha, Hunan 410006, P.R. China
| | - Li Li
- Obstetrics and Gynecology Department, The Fourth Hospital of Changsha, Changsha Hospital of Hunan Normal University, Changsha, Hunan 410006, P.R. China
| | - Lian Hu
- Obstetrics and Gynecology Department, The Fourth Hospital of Changsha, Changsha Hospital of Hunan Normal University, Changsha, Hunan 410006, P.R. China
| | - Ting Li
- Obstetrics and Gynecology Department, The Fourth Hospital of Changsha, Changsha Hospital of Hunan Normal University, Changsha, Hunan 410006, P.R. China
| | - Dan Xie
- Obstetrics and Gynecology Department, The Fourth Hospital of Changsha, Changsha Hospital of Hunan Normal University, Changsha, Hunan 410006, P.R. China
| | - Xiaoliu Liu
- Obstetrics and Gynecology Department, The Fourth Hospital of Changsha, Changsha Hospital of Hunan Normal University, Changsha, Hunan 410006, P.R. China
| |
Collapse
|
3
|
Wong NK, Luo S, Chow EYD, Meng F, Adesanya A, Sun J, Ma HMH, Jin W, Li WC, Yip SP, Huang CL. The Tyrosine Kinase-Driven Networks of Novel Long Non-coding RNAs and Their Molecular Targets in Myeloproliferative Neoplasms. Front Cell Dev Biol 2021; 9:643043. [PMID: 34414175 PMCID: PMC8369571 DOI: 10.3389/fcell.2021.643043] [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: 12/17/2020] [Accepted: 07/09/2021] [Indexed: 01/16/2023] Open
Abstract
Recent research has focused on the mechanisms by which long non-coding RNAs (lncRNAs) modulate diverse cellular processes such as tumorigenesis. However, the functional characteristics of these non-coding elements in the genome are poorly understood at present. In this study, we have explored several mechanisms that involve the novel lncRNA and microRNA (miRNA) axis participating in modulation of drug response and the tumor microenvironment of myeloproliferative neoplasms (MPNs). We identified novel lncRNAs via mRNA sequencing that was applied to leukemic cell lines derived from BCR-ABL1-positive and JAK2-mutant MPNs under treatment with therapeutic tyrosine kinase inhibitors (TKI). The expression and sequence of novel LNC000093 were further validated in both leukemic cells and normal primary and pluripotent cells isolated from human blood, including samples from patients with chronic myelogenous leukemia (CML). Downregulation of LNC000093 was validated in TKI-resistant CML while a converse expression pattern was observed in blood cells isolated from TKI-sensitive CML cases. In addition to BCR-ABL1-positive CML cells, the driver mutation JAK2-V617F-regulated lncRNA BANCR axis was further identified in BCR-ABL1-negative MPNs. Further genome-wide validation using MPN patient specimens identified 23 unique copy number variants including the 7 differentially expressed lncRNAs from our database. The newly identified LNC000093 served as a competitive endogenous RNA for miR-675-5p and reversed the imatinib resistance in CML cells through regulating RUNX1 expression. The extrinsic function of LNC000093 in exosomal H19/miR-675-induced modulation for the microenvironment was also determined with significant effect on VEGF expression.
Collapse
Affiliation(s)
- Nonthaphat Kent Wong
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Kowloon, Hong Kong
| | - Shumeng Luo
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Kowloon, Hong Kong
| | - Eudora Y D Chow
- Department of Pathology, United Christian Hospital, Kwun Tong, Hong Kong
| | - Fei Meng
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Kowloon, Hong Kong
| | - Adenike Adesanya
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Kowloon, Hong Kong
| | - Jiahong Sun
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Kowloon, Hong Kong.,Department of Biology, Southern University of Science and Technology, Shenzhen, China
| | - Herman M H Ma
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Kowloon, Hong Kong.,Department of Pathology, United Christian Hospital, Kwun Tong, Hong Kong
| | - Wenfei Jin
- Department of Biology, Southern University of Science and Technology, Shenzhen, China
| | - Wan-Chun Li
- Institute of Oral Biology, College of Dentistry, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Shea Ping Yip
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Kowloon, Hong Kong
| | - Chien-Ling Huang
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Kowloon, Hong Kong
| |
Collapse
|
4
|
Zhu Z, Gong X, Li J, Shi Y, Zhang M. Long non-coding RNA receptor activator of nuclear factor-κ B ligand promotes cisplatin resistance in non-small cell lung cancer cells. Exp Ther Med 2021; 21:518. [PMID: 33815591 PMCID: PMC8014969 DOI: 10.3892/etm.2021.9949] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Accepted: 12/17/2020] [Indexed: 02/06/2023] Open
Abstract
Non-small cell lung cancer (NSCLC) is a common malignancy associated with poor clinical outcomes and high mortality rate. The association between NSCLC development and long non-coding RNA (lncRNA) expression remains to be elucidated. The current study investigated the role of a novel lncRNA, receptor activator of nuclear factor-κ B ligand (RANKL), in the resistance of NSCLC to chemotherapy. RANKL expression was assessed via reverse transcription-quantitative PCR, cell death rate was evaluated using flow cytometry and sensitivity of cisplatin (DDP)-resistant A549/DDP cells to chemotherapy was determined using the Cell Counting Kit-8 assay. Western blotting was performed to quantify p53 protein levels. Compared with matched A549 cells, A549/DDP cells exhibited significant upregulation of RANKL expression. Sensitivity of A549/DDP cells to DDP was restored following RANKL knockdown. A549 cells overexpressing RANKL exhibited notably impaired DDP sensitivity compared with controls. Conversely, downregulated RANKL expression triggered cell death and inhibited cell migration via p53 stimulation and phosphatidylinositol 3-kinase/protein kinase B pathway suppression. The current findings indicate that RANKL contributes to DDP resistance in NSCLC and may represent a novel therapeutic target in this malignancy.
Collapse
Affiliation(s)
- Zhongcheng Zhu
- Department of Radiotherapy, Cangzhou Central Hospital, Cangzhou, Hebei 061000, P.R. China
| | - Xiaoyi Gong
- Return Visit Office, Cangzhou Central Hospital, Cangzhou, Hebei 061000, P.R. China
| | - Jing Li
- Return Visit Office, Cangzhou Central Hospital, Cangzhou, Hebei 061000, P.R. China
| | - Yufeng Shi
- Department of Radiotherapy, Cangzhou Central Hospital, Cangzhou, Hebei 061000, P.R. China
| | - Mingyun Zhang
- Department of Radiotherapy, Cangzhou Central Hospital, Cangzhou, Hebei 061000, P.R. China
| |
Collapse
|
5
|
Majed SO, Mustafa SA. MACE-Seq-based coding RNA and TrueQuant-based small RNA profile in breast cancer: tumor-suppressive miRNA-1275 identified as a novel marker. BMC Cancer 2021; 21:473. [PMID: 33910530 PMCID: PMC8082896 DOI: 10.1186/s12885-021-08218-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 04/19/2021] [Indexed: 12/30/2022] Open
Abstract
Introduction Disruption of cellular processes in the breast by abnormally expressed miRNA is characterized to develop cancer. We aimed to identify the differential expression of small RNAs (sRNAs) and mRNAs in formalin-fixed paraffin-embedded (FFPE) tissue of the breast cancer (BC) and normal adjacent tissue (NAT). Another aim is to determine the differential expression of miR-1275 as a novel biomarker for BC and also identify its target genes. Methods TrueQuant method for analysis of sRNA expression and MACE-sequencing method for analysis of gene expression were used analyzing. The RT-qPCR technique was used to confirm miR-1275 down expression. Target genes of miR-1275 were computationally identified using target prediction sites and also the expression level of them was experimentally determined among the expressed genes. Results TrueQuant findings showed that 1400 sRNAs were differentially expressed in the FFPE tissue of two Kurdish cases with BC, as compared to NAT. Among the sRNAs, 29 small RNAs were shown to be significantly downregulated in BC cells. The RT-qPCR results confirmed that miR-1275 was significantly down-expressed in 20 Kurdish cases with BC compared to NAT. However, Overall survival (OS) analysis revealed that the correlation between the expression level of miR-1275 and clinical significance was highly corrected in cases with BC (OS rate: P = 0.0401). The MACE-seq results revealed that 26,843 genes were differentially expressed in the BC tissue compared to NAT, but 7041 genes were displayed in a scatter plot. Furthermore, putative target genes (DVL3, PPP2R2D, THSD4, CREB1, SYT7, and PRKACA) were computationally identified as direct targets of miR-1275 in several target predicted sites. The MACE-seq results revealed that the expression level of these targets was increased in BC tissue compared to NAT. The level of these targets was negatively associated with miR-1275 expression. Finally, the role of down-regulated miR-1275 on its targets in biological mechanisms of BC cells was identified; including cell growth, proliferation, movement, invasion, metastasis, and apoptosis. Conclusion Down-expressed miR-1275, a tumor suppressor, is a novel biomarker for early detection of BC. DVL3, PPP2R2D, THSD4, CREB1, SYT7, and PRKACA are newly identified to be targeted by miR-1275.
Collapse
Affiliation(s)
- Sevan Omer Majed
- Biology Department, College of Education, Salahaddin University-Erbil, Erbil, Iraq.
| | - Suhad Asad Mustafa
- Research Center, Molecular Genetics lab, Salahaddin University-Erbil, Erbil, Iraq
| |
Collapse
|
6
|
HAND2-AS1 Works as a ceRNA of miR-3118 to Suppress Proliferation and Migration in Breast Cancer by Upregulating PHLPP2. BIOMED RESEARCH INTERNATIONAL 2020; 2020:8124570. [PMID: 33015182 PMCID: PMC7512048 DOI: 10.1155/2020/8124570] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Accepted: 08/05/2020] [Indexed: 02/06/2023]
Abstract
Large quantities of long noncoding RNAs (lncRNAs) have been verified to exert vital functions in the process of breast cancer (BC). lncRNA heart and neural crest derivatives expressed 2-antisense RNA 1 (HAND2-AS1) was reported to suppress the development of several cancers. However, its detailed function in BC remained unclear. In the current study, HAND2-AS1 was discovered to be low expressed in BC cell lines, and overexpression of HAND2-AS1 could repress proliferation, migration, and invasion but facilitate apoptosis in BC cells. Moreover, HAND2-AS1 was found to act as a sponge of miR-3118 which was detected to be upregulated in BC cell lines. miR-3118 depletion could constrict the progression of BC. HAND-AS1 hindered the course of BC by reducing the expression of miR-3118. Besides, PHLPP2 was treated as a downstream target of miR-3118 under the selection of RNA pull-down assays. HAND2-AS1 inhibited the process of BC by enhancing expression of PHLPP2. In summary, our study testified that HAND2-AS1 suppressed BC growth by targeting the miR-3118/PHLPP2 axis, indicating that HAND2-AS1 could be regarded as a potential target for BC treatment.
Collapse
|
7
|
Long Non-Coding RNA HAND2-AS1 Acts as a Tumor Suppressor in High-Grade Serous Ovarian Carcinoma. Int J Mol Sci 2020; 21:ijms21114059. [PMID: 32517089 PMCID: PMC7312972 DOI: 10.3390/ijms21114059] [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: 05/05/2020] [Revised: 05/25/2020] [Accepted: 05/27/2020] [Indexed: 12/19/2022] Open
Abstract
Long non-coding RNAs (lncRNAs) are increasingly being identified as crucial regulators in pathologies like cancer. High-grade serous ovarian carcinoma (HGSC) is the most common subtype of ovarian cancer (OC), one of the most lethal gynecological malignancies. LncRNAs, especially in cancers such as HGSC, could play a valuable role in diagnosis and even therapy. From RNA-sequencing analysis performed between an OC cell line, SKOV3, and a Fallopian Tube (FT) cell line, FT194, an important long non-coding RNA, HAND2 Anti sense RNA 1 (HAND2-AS1), was observed to be significantly downregulated in OCs when compared to FT. Its downregulation in HGSC was validated in different datasets and in a panel of HGSC cell lines. Furthermore, this study shows that the downregulation of HAND2-AS1 is caused by promoter hypermethylation in HGSC and behaves as a tumor suppressor in HGSC cell lines. Since therapeutic relevance is of key importance in HGSC research, for the first time, HAND2-AS1 upregulation was demonstrated to be one of the mechanisms through which HDAC inhibitor Panobinostat could be used in a strategy to increase HGSC cells’ sensitivity to chemotherapeutic agents currently used in clinical trials. To unravel the mechanism by which HAND2-AS1 exerts its role, an in silico mRNA network was constructed using mRNAs whose expressions were positively and negatively correlated with this lncRNA in HGSC. Finally, a putative ceRNA network with possible miRNA targets of HAND2-AS1 and their mRNA targets was constructed, and the enriched Gene Ontology (GO) biological processes and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways were identified.
Collapse
|
8
|
Wei P, Yang J, Zhang D, Cui M, Li L. lncRNA HAND2-AS1 Regulates Prostate Cancer Cell Growth Through Targeting the miR-106a-5p/RBM24 Axis. Onco Targets Ther 2020; 13:4523-4531. [PMID: 32547083 PMCID: PMC7247600 DOI: 10.2147/ott.s246274] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Accepted: 04/07/2020] [Indexed: 12/19/2022] Open
Abstract
Introduction Increasing evidence has shown that abnormally expressed long non-coding RNA (lncRNA) plays crucial roles in prostate cancer (PCa) progression. Materials and Methods Here, we analyzed the expression level of lncRNA HAND2 antisense RNA 1 (HAND2-AS1) in PCa cells and tissues. Function assays were performed to investigate the biological roles of HAND2-AS1 in PCa cell behaviors. Bioinformatics methods, luciferase activity reporter assay, and RNA pull-down assay were performed to validate the connection of microRNA-106a-5p (miR-106a-5p) with HAND2-AS1. Also, the target of miR-106a-5p was explored using the same methods. Results Our results revealed HAND2-AS1 expression was decreased in both PCa cells and tissues. In vitro functional assays showed HAND2-AS1 could inhibit PCa cell proliferation and colony formation through promoting cell apoptosis. Dual-luciferase activity assays showed miR-106a-5p could directly bind with HAND2-AS1 and RNA binding motif protein 24 (RBM24). Mechanistically, we showed that HAND2-AS1 regulates PCa cell behaviors via targeting miR-106a-5p/RBM24 axis. Conclusion In summary, our results illustrated that HAND2-AS1 functions as miR-106a-5p sponge to regulate RBM24 expression, and to influence PCa progression.
Collapse
Affiliation(s)
- Pengtao Wei
- Department of Urology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang 471000, People's Republic of China
| | - Jing Yang
- Central Sterile Supply Department, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, People's Republic of China
| | - Dandan Zhang
- Urinary Surgery, YiDu Central Hospital in Weifang City, Qingzhou, People's Republic of China
| | - Meng Cui
- Department of Gynecology, Shandong Provincial Maternity and Childcare Hospital, Jinan, People's Republic of China
| | - Lianjun Li
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250014, People's Republic of China.,Department of Urology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250014, People's Republic of China
| |
Collapse
|
9
|
Gao J, Wang F, Wu P, Chen Y, Jia Y. Aberrant LncRNA Expression in Leukemia. J Cancer 2020; 11:4284-4296. [PMID: 32368311 PMCID: PMC7196264 DOI: 10.7150/jca.42093] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Accepted: 03/31/2020] [Indexed: 02/05/2023] Open
Abstract
Leukemia is a common malignant cancer of the hematopoietic system, whose pathogenesis has not been fully elucidated. Long noncoding RNAs (lncRNAs) are transcripts longer than 200 nucleotides without protein-coding function. Recent studies report their role in cellular processes such as the regulation of gene expression, as well as in the carcinogenesis, occurrence, development, and prognosis of various tumors. Evidence indicating relationships between a variety of lncRNAs and leukemia pathophysiology has increased dramatically in the previous decade, with specific lncRNAs expected to serve as diagnostic biomarkers, novel therapeutic targets, and predictors of clinical outcomes. Furthermore, these lncRNAs might offer insight into disease pathogenesis and novel treatment options. This review summarizes progress in studies on the role(s) of lncRNAs in leukemia.
Collapse
Affiliation(s)
- Jie Gao
- Department of Hematology, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China
| | - Fujue Wang
- Department of Hematology, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China
| | - Pengqiang Wu
- Department of Hematology, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China
| | - Yingying Chen
- Department of Hematology, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China
| | - Yongqian Jia
- Department of Hematology, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China
| |
Collapse
|
10
|
Gong J, Fan H, Deng J, Zhang Q. LncRNA HAND2-AS1 represses cervical cancer progression by interaction with transcription factor E2F4 at the promoter of C16orf74. J Cell Mol Med 2020; 24:6015-6027. [PMID: 32314545 PMCID: PMC7294116 DOI: 10.1111/jcmm.15117] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 02/08/2020] [Accepted: 02/15/2020] [Indexed: 12/30/2022] Open
Abstract
Cervical cancer is one of the major malignancies, the pathophysiology and progression of which remain to be scarcely understood. Long non-coding RNAs (lncRNAs) have been previously implicated in the progression of cervical cancer. Here, the purpose of this study was to identify whether lncRNA heart- and neural crest derivative-expressed 2-antisense RNA 1 (HAND2-AS1) affect the development of cervical cancer through regulation of chromosome 16 open reading frame 74 (C16orf74) by mediating a transcription factor E2F4. RT-qPCR was performed to determine the expression of HAND2-AS1 in cervical cancer cells. Then, cervical cancer cells were treated with HAND2-AS1 or si-E2F4 RNA, or C16orf74, after which the proliferation, colony formation, migration and invasion were detected. Moreover, the binding between HAND2-AS1 and E2F4 or between E2F4 and C16orf74 was explored. Finally, the tumorigenesis of cervical cancer cells was measured in nude mice with altered HAND2-AS1/E2F4/C16orf74 expression. HAND2-AS1 exhibited poor expression in cervical cancer, and HAND2-AS1 overexpression suppressed the proliferation, colony formation, migration and invasion of cervical cancer cells. In addition, HAND2-AS1 was found to recruit transcription factor E2F4 to C16orf74 promoter region and down-regulate C16orf74 expression. Lastly, HAND2-AS1/E2F4/C16orf74 modulated the tumorigenesis of cervical cancer in nude mice. In conclusion, this study provided evidence on the inhibitory effect of HAND2-AS1 on the development of cervical cancer through the suppression of C16orf74 expression by recruiting transcription factor E2F4. This study highlights the potential of lncRNA HAND2-AS1 as a target in the treatment of cervical cancer.
Collapse
Affiliation(s)
- Junling Gong
- Department of Obstetrics and Gynecology, Linyi People's Hospital, Linyi, China
| | - Haiying Fan
- Hemodialysis Room, Linyi People's Hospital, Linyi, China
| | - Jing Deng
- Department of Internal Medicine, Miaoshan Health Center, Linyi, China
| | - Qiumei Zhang
- Department of Obstetrics and Gynecology, Linyi People's Hospital, Linyi, China
| |
Collapse
|
11
|
Pereira IT, Spangenberg L, Cabrera G, Dallagiovanna B. Polysome-associated lncRNAs during cardiomyogenesis of hESCs. Mol Cell Biochem 2020; 468:35-45. [PMID: 32125578 DOI: 10.1007/s11010-020-03709-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Accepted: 02/22/2020] [Indexed: 12/26/2022]
Abstract
Long non-coding RNAs (lncRNAs) have been found to be involved in many biological processes, including the regulation of cell differentiation, but a complete characterization of lncRNA is still lacking. Additionally, there is evidence that lncRNAs interact with ribosomes, raising questions about their functions in cells. Here, we used a developmentally staged protocol to induce cardiogenic commitment of hESCs and then investigated the differential association of lncRNAs with polysomes. Our results identified lncRNAs in both the ribosome-free and polysome-bound fractions during cardiogenesis and showed a very well-defined temporal lncRNA association with polysomes. Clustering of lncRNAs was performed according to the gene expression patterns during the five timepoints analyzed. In addition, differential lncRNA recruitment to polysomes was observed when comparing the differentially expressed lncRNAs in the ribosome-free and polysome-bound fractions or when calculating the polysome-bound vs ribosome-free ratio. The association of lncRNAs with polysomes could represent an additional cytoplasmic role of lncRNAs, e.g., in translational regulation of mRNA expression.
Collapse
Affiliation(s)
- Isabela Tiemy Pereira
- Basic Stem-Cell Biology Laboratory, Instituto Carlos Chagas - FIOCRUZ-PR, Rua Professor Algacyr Munhoz Mader, 3775, Curitiba, PR, 81.350-010, Brazil
| | - Lucia Spangenberg
- Bioinformatics Unit, Institut Pasteur de Montevideo, Mataojo 2020, 11400, Montevideo, Uruguay
| | - Guillermo Cabrera
- Bioinformatics Unit, Institut Pasteur de Montevideo, Mataojo 2020, 11400, Montevideo, Uruguay
| | - Bruno Dallagiovanna
- Basic Stem-Cell Biology Laboratory, Instituto Carlos Chagas - FIOCRUZ-PR, Rua Professor Algacyr Munhoz Mader, 3775, Curitiba, PR, 81.350-010, Brazil.
| |
Collapse
|