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Jiang XY, Zhu QC, Zhang XJ, Duan T, Feng J, Sui XB, Sun XN, Mou YP. Roles of lncRNAs in pancreatic ductal adenocarcinoma: Diagnosis, treatment, and the development of drug resistance. Hepatobiliary Pancreat Dis Int 2023; 22:128-139. [PMID: 36543619 DOI: 10.1016/j.hbpd.2022.12.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Accepted: 12/07/2022] [Indexed: 02/05/2023]
Abstract
BACKGROUND Pancreatic ductal adenocarcinoma (PDAC) is one of the most lethal cancers, primarily due to its late diagnosis, high propensity to metastasis, and the development of resistance to chemo-/radiotherapy. Accumulating evidence suggests that long non-coding RNAs (lncRNAs) are intimately involved in the treatment resistance of pancreatic cancer cells via interacting with critical signaling pathways and may serve as potential diagnostic/prognostic markers or therapeutic targets in PDAC. DATA SOURCES We carried out a systematic review on lncRNAs-based research in the context of pancreatic cancer and presented an overview of the updated information regarding the molecular mechanisms underlying lncRNAs-modulated pancreatic cancer progression and drug resistance, together with their potential value in diagnosis, prognosis, and treatment of PDAC. Literature mining was performed in PubMed with the following keywords: long non-coding RNA, pancreatic ductal adenocarcinoma, pancreatic cancer up to January 2022. Publications relevant to the roles of lncRNAs in diagnosis, prognosis, drug resistance, and therapy of PDAC were collected and systematically reviewed. RESULTS LncRNAs, such as HOTAIR, HOTTIP, and PVT1, play essential roles in regulating pancreatic cancer cell proliferation, invasion, migration, and drug resistance, thus may serve as potential diagnostic/prognostic markers or therapeutic targets in PDAC. They participate in tumorigenesis mainly by targeting miRNAs, interacting with signaling molecules, and involving in the epithelial-mesenchymal transition process. CONCLUSIONS The functional lncRNAs play essential roles in pancreatic cancer cell proliferation, invasion, migration, and drug resistance and have potential values in diagnosis, prognostic prediction, and treatment of PDAC.
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Affiliation(s)
- Xiao-Yin Jiang
- The National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou 310014, China; Department of Gastrointestinal and Pancreatic Surgery, Key Laboratory of Gastroenterology of Zhejiang Province, Zhejiang Provincial People's Hospital, Affiliated People's Hospital of Hangzhou Medical College, Hangzhou 310014, China; School of Pharmacy, Hangzhou Normal University, Hangzhou 311121, China
| | - Qi-Cong Zhu
- Department of Gastrointestinal and Pancreatic Surgery, Key Laboratory of Gastroenterology of Zhejiang Province, Zhejiang Provincial People's Hospital, Affiliated People's Hospital of Hangzhou Medical College, Hangzhou 310014, China
| | - Xiao-Jian Zhang
- The National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou 310014, China
| | - Ting Duan
- School of Pharmacy, Hangzhou Normal University, Hangzhou 311121, China
| | - Jiao Feng
- School of Pharmacy, Hangzhou Normal University, Hangzhou 311121, China
| | - Xin-Bing Sui
- School of Pharmacy, Hangzhou Normal University, Hangzhou 311121, China
| | - Xue-Ni Sun
- School of Pharmacy, Hangzhou Normal University, Hangzhou 311121, China
| | - Yi-Ping Mou
- Department of Gastrointestinal and Pancreatic Surgery, Key Laboratory of Gastroenterology of Zhejiang Province, Zhejiang Provincial People's Hospital, Affiliated People's Hospital of Hangzhou Medical College, Hangzhou 310014, China.
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Feng F, Yang J, Chen A, Cui M, Li L. Long non-coding RNA long intergenic non-protein coding RNA 1232 promotes cell proliferation, migration and invasion in bladder cancer via modulating miR-370-5p/PIM3 axis. J Tissue Eng Regen Med 2022; 16:575-585. [PMID: 35338769 DOI: 10.1002/term.3291] [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: 09/29/2021] [Revised: 01/10/2022] [Accepted: 02/04/2022] [Indexed: 11/08/2022]
Abstract
Increasing evidences have suggested that long non-coding RNAs are critical regulators in the progression of tumor growth. Long intergenic non-protein coding RNA 1232 (LINC01232) was verified as an oncogene in multiple cancers. Nevertheless, its function in bladder cancer (BC) remains to be uncovered. In the current study, we detected LINC01232 expression utilizing quantitative real-time polymerase chain reaction (RT-qPCR) and discovered that LINC01232 was overexpressed in BC cell lines versus normal cell line. Besides, the effect of LINC01232 on BC cell behaviors was measured by colony formation, Cell Counting Kit-8 (CCK-8), transwell, TdT-mediated dUTP Nick-End Labeling and caspase-3/8 activity assays. Functionally, LINC01232 deficiency suppressed cell proliferation, migration and invasion. Next, miR-370-5p was proved to bind with LINC01232 by RNA pull down, RNA-binding protein immunoprecipitation (RIP) and luciferase reporter assays. Furthermore, PIM3 expression was negatively modulated by miR-370-5p and markedly increased in BC cell lines. Moreover, PIM3 silence repressed proliferation, migration and invasion but triggered apoptosis of BC cells. The rescue assays validated that upregulation of PIM3 recovered the effects of LINC01232 silence on the growth of BC cells. To summarize, our study manifested that LINC01232 accelerates BC progression by targeting miR-370-5p/PIM3 axis. Targeting LINC01232 might offer novel insight into BC treatment.
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Affiliation(s)
- Feng Feng
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, China
| | - Jing Yang
- Department of Central Sterile Supply, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, China
| | - Aiping Chen
- Department of Gastroenterology, Liaocheng People's Hospital, Liao Cheng, Shandong, China
| | - Meng Cui
- Department of Gynecology, Shandong Provincial Maternity and Childcare Hospital, Jinan, Shandong, China
| | - Lianjun Li
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, China.,Department of Urology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
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Elevated LINC01232 is associated with poor prognosis and HBV infection in hepatocellular carcinoma patients and contributes to tumor progression in vitro. Clin Res Hepatol Gastroenterol 2022; 46:101813. [PMID: 34583064 DOI: 10.1016/j.clinre.2021.101813] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 09/09/2021] [Accepted: 09/19/2021] [Indexed: 02/04/2023]
Abstract
BACKGROUND Hepatocellular carcinoma (HCC) had high prevalence and poor prognosis, and hepatitis B virus (HBV) infection is a major risk factor. The aim of this study is to analyze the role of long intergenic noncoding RNA 01232 (LINC01232) in the prognosis and progression of HCC, and explore the relationship between LINC01232 and HBV infection. METHODS LINC01232 expression and its prognostic value were firstly analyzed using TCGA database. Quantitative real-time PCR was used to evaluate the expression of LINC01232 in HCC patients and cell lines. Kaplan-Meier curves were used to analyze the relationship between LINC01232 expression and HCC overall survival prognosis. Function-loss in vitro experiments were performed to demonstrate the role of LINC01232 in HCC progression. A luciferase reporter assay and Pearson correlation were used to confirm the relationship between LINC01232 and microRNA (miR)-708-5p in HCC. RESULTS The expression of LINC01232 was upregulated in HCC tissues and cell lines, and high LINC01232 was associated with worse overall survival in HCC. LINC01232 reduction inhibited HCC cells proliferation, migration and invasion. LINC01232 expression was significantly correlated with HBV infection and liver cirrhosis, and showed potential to distinguish HBV-infected HCC patients. miR-708-5p, as a HBV-related miRNA, was a potential target of LINC01232, and was negatively correlated with LINC01232 in HCC. CONCLUSION Our findings found that highly expressed LINC01232 may be a biomarker to indicate survival prognosis in HCC patients, especially in HBV-infected cases. In addition, LINC01232 plays as an oncogene in HCC progression, and its function may exert by sponging miR-708-5p.
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Liu Q, Lei C. LINC01232 serves as a novel biomarker and promotes tumour progression by sponging miR-204-5p and upregulating RAB22A in clear cell renal cell carcinoma. Ann Med 2021; 53:2153-2164. [PMID: 34783622 PMCID: PMC8604453 DOI: 10.1080/07853890.2021.2001563] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Accepted: 10/28/2021] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Long non-coding RNAs (lncRNAs) are involved in the progression of various cancers, including clear cell renal cell carcinoma (ccRCC). This study aimed to investigate the expression and prognostic value of long intergenic non-protein coding RNA (LINC) 01232 in ccRCC and preliminary explore the molecular mechanism underlying the role of LINC01232 in ccRCC progression. METHODS Tumour tissues and adjacent normal tissues of 122 patients with ccRCC were collected in this study. The levels of LINC01232, microRNA (miR)-204-5p and RAB22A were measured by quantitative real-time PCR. The proliferation, migration and invasion of ccRCC cells were detected by cell counting kit-8 assay and Transwell assay, respectively. The interaction among LINC01232, miR-204-5p and RAB22A was confirmed by bioinformatics analysis, dual-luciferase reporter assay and Pearson correlation analysis. The association of LINC01232 and miR-204-5p with ccRCC patient survival was verified by the Kaplan-Meier method and log-rank test. The prognostic value of LINC01232 in ccRCC was confirmed by Cox regression analysis. RESULTS LINC01232 expression was increased in ccRCC tumour tissues and ccRCC cells and independently predicted the prognosis of ccRCC patients. In addition, LINC01232 silencing inhibited ccRCC cell proliferation, migration and invasion. Moreover, LINC01232 served as a sponge for miR-204-5p, and miR-204-5p reduction reversed the inhibitory effect of LINC01232 silencing on ccRCC cell function. Furthermore, LINC01232 could sponge miR-204-5p, causing the elevation of RAB22A in ccRCC, thereby promoting ccRCC cell function. CONCLUSION LINC01232 may be an independent prognostic biomarker in ccRCC and plays an oncogenic role in ccRCC progression by sponging miR-204-5p and upregulating RAB22A.
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Affiliation(s)
- Qingling Liu
- Department of Clinical Laboratory, Zibo Maternal and Child Health Hospital, Shandong, China
| | - Chengbin Lei
- Department of Clinical Laboratory, Zibo Central Hospital, Shandong, China
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Yuan P, Tang C, Chen B, Lei P, Song J, Xin G, Wang Z, Hui Y, Yao W, Wang G, Zhao G. miR‑32‑5p suppresses the proliferation and migration of pancreatic adenocarcinoma cells by targeting TLDC1. Mol Med Rep 2021; 24:752. [PMID: 34468015 PMCID: PMC8430301 DOI: 10.3892/mmr.2021.12392] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 07/12/2021] [Indexed: 12/16/2022] Open
Abstract
Pancreatic adenocarcinoma (PAAD) is one of the most fatal types of cancer in humans. However, the molecular mechanisms underlying the migration and invasion abilities of PAAD cells remain unclear. The aim of the present study was to explore the regulatory roles of microRNA (miR)‑32‑5p in PAAD cells. miR‑32‑5p mimic and inhibitor were used to transfect the human PAAD AsPC‑1 cell line to determine the role of miR‑32‑5p in cell proliferation and metastasis. The starBase database predicted the binding of miR‑32‑5p to the target gene TBC/LysM‑associated domain containing 1 (TLDC1). Further analyses were performed to assess miR‑32‑5p and TLDC1 expression levels in healthy and PAAD tissues, as well as the association between miR‑32‑5p or TLDC1 expression and the prognosis of patients with PAAD. The interaction between miR‑32‑5p and TLDC1 was verified using the dual‑luciferase reporter assay. miR‑32‑5p and TLDC1 expression levels were detected by reverse transcription‑quantitative PCR and western blotting, respectively. The Cell Counting Kit‑8 assay was utilised to assess cell proliferation, whereas the wound‑healing and Transwell assays were conducted to assess cell migration and invasion, respectively. miR‑32‑5p expression levels were markedly lower in PAAD tissue compared with those in healthy tissue, and were significantly lower in PAAD cell lines compared with those in the human pancreatic duct cell line HPDE6, which corresponded with poor prognosis. miR‑32‑5p significantly inhibited the proliferation of PAAD cells and markedly reduced migration and invasion compared with the negative controls. miR‑32‑5p was shown to target TLDC1, with miR‑32‑5p expression in PAAD being negatively correlated with TLDC1 expression. High TLDC1 expression levels were associated with a poorer prognosis compared with low TLDC1 expression levels. Co‑transfection of miR‑32‑5p mimic and pcDNA/TLDC1 demonstrated that TLDC1 significantly reversed miR‑32‑5p‑mediated inhibition of the proliferation, migration and invasion of PAAD cells. Overall, the present study demonstrated that miR‑32‑5p may serve as a tumor‑suppressor gene by inhibiting the proliferation and migration and invasion of PAAD cells via the downregulation of TLDC1. Therefore, miR‑32‑5p may serve as a potential diagnostic or prognostic marker for PAAD.
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Affiliation(s)
- Peng Yuan
- Department of Hepatobiliary Surgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
| | - Chaofeng Tang
- Department of Hepatobiliary Surgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
| | - Bendong Chen
- Department of Hepatobiliary Surgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
| | - Peng Lei
- Department of Hepatobiliary Surgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
| | - Jianjun Song
- Department of Hepatobiliary Surgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
| | - Guojun Xin
- Department of Hepatobiliary Surgery, People's Hospital of Ningxia Hui Autonomous Region, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
| | - Zuozheng Wang
- Department of Hepatobiliary Surgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
| | - Yongfeng Hui
- Department of Hepatobiliary Surgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
| | - Weijie Yao
- Department of Hepatobiliary Surgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
| | - Genwang Wang
- Department of Hepatobiliary Surgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
| | - Guozhong Zhao
- Department of Hepatobiliary Surgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
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Liu J, Li Z, Yu G, Wang T, Qu G, Wang Y. LINC01232 Promotes Gastric Cancer Proliferation through Interacting with EZH2 to Inhibit the Transcription of KLF2. J Microbiol Biotechnol 2021; 31:1358-1365. [PMID: 34409953 PMCID: PMC9705925 DOI: 10.4014/jmb.2106.06041] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 08/10/2021] [Accepted: 08/17/2021] [Indexed: 12/15/2022]
Abstract
To clarify the role of long intergenic nonprotein-coding RNA 1232 (LINC01232) in the progression of gastric cancer and the potential mechanism, we analyzed the expression of LINC01232 in TCGA database using the GEPIA online tool, and the LINC01232 level in gastric cancer cell lines was detected by quantitative real time-polymerase chain reaction (qRT-PCR) as well. Cell proliferation assay, colony formation assay, transwell assay and tumor formation experiment in nude mice were conducted to observe the biological behavior changes of gastric cancer cells through the influence of LINC01232 knockdown. LncATLAS database and subcellular isolation assay were used for subcellular distribution of LINC01232 in gastric cancer cells. The interaction among LINC01232, zeste homolog 2 (EZH2) and kruppel-like factor 2 (KLF2) was clarified by RNA-protein interaction prediction (RPISeq), RNA immunoprecipitation (RIP), qRT-PCR and chromatin immunoprecipitation (ChIP) assay. Rescue experiments were further conducted to elucidate the biological function of LINC01232/KLF2 axis in the progression of gastric cancer. LINC01232 was upregulated in stomach adenocarcinoma (STAD) tissues and gastric cancer lines. LINC01232 knockdown inhibited the proliferative capacities of gastric cancer cells in vitro, and impaired in vivo tumorigenicity. LINC01232 was mainly distributed in the cell nucleus where it epigenetically repressed KLF2 expression via binding to the enhancer of EZH2, which was capable of binding to promoter regions of KLF2 to induce histone H3 lysine 27 trimethylation (H3K27me3). LINC01232 exerts oncogenic activities in gastric cancer via inhibition of KLF2, and therefore, the knockdown of KLF2 could reverse the regulatory effect of LINC01232 in the proliferative ability of gastric cancer cells.
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Affiliation(s)
- Jing Liu
- Department of Pathology, Yantai Yuhuangding Hospital, Yantai 264000, P.R. China
| | - Zhen Li
- Department of General and Pediatric Surgery, Yantai Yuhuangding Hospital, Yantai 264000, P.R. China
| | - Guohua Yu
- Department of Pathology, Yantai Yuhuangding Hospital, Yantai 264000, P.R. China
| | - Ting Wang
- Department of Pathology, Yantai Yuhuangding Hospital, Yantai 264000, P.R. China
| | - Guimei Qu
- Department of Pathology, Yantai Yuhuangding Hospital, Yantai 264000, P.R. China
| | - Yunhui Wang
- Department of General and Pediatric Surgery, Yantai Yuhuangding Hospital, Yantai 264000, P.R. China
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Ye J, She X, Liu Z, He Z, Gao X, Lu L, Liang R, Lin Y. Eukaryotic Initiation Factor 4A-3: A Review of Its Physiological Role and Involvement in Oncogenesis. Front Oncol 2021; 11:712045. [PMID: 34458150 PMCID: PMC8386015 DOI: 10.3389/fonc.2021.712045] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Accepted: 07/27/2021] [Indexed: 12/30/2022] Open
Abstract
EIF4A3, a member of the DEAD-box protein family, is a nuclear matrix protein and a core component of the exon junction complex (EJC). Under physiological conditions, EIF4A3 participates in post-transcriptional gene regulation by promoting EJC control of precursor mRNA splicing, thus influencing nonsense-mediated mRNA decay. In addition, EIF4A3 maintains the expression of significant selenoproteins, including phospholipid hydroperoxide glutathione peroxidase and thioredoxin reductase 1. Several recent studies have shown that EIF4A3 promotes tumor growth in multiple human cancers such as glioblastoma, hepatocellular carcinoma, pancreatic cancer, and ovarian cancer. Molecular biology studies also showed that EIF4A3 is recruited by long non-coding RNAs to regulate the expression of certain proteins in tumors. However, its tumor-related functions and underlying mechanisms are not well understood. Here, we review the physiological role of EIF4A3 and the potential association between EIF4A3 overexpression and tumorigenesis. We also evaluate the protein's potential utility as a diagnosis biomarker, therapeutic target, and prognosis indicator, hoping to provide new ideas for future research.
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Affiliation(s)
- Jiazhou Ye
- Guangxi Medical University Cancer Hospital, Nanning, China
| | | | - Ziyu Liu
- Guangxi Medical University, Nanning, China
| | - Ziqin He
- Guangxi Medical University, Nanning, China
| | - Xing Gao
- Guangxi Medical University Cancer Hospital, Nanning, China
| | - Lu Lu
- Guangxi Medical University Cancer Hospital, Nanning, China
| | - Rong Liang
- Guangxi Medical University Cancer Hospital, Nanning, China
| | - Yan Lin
- Guangxi Medical University Cancer Hospital, Nanning, China
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