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Singh S, Parthasarathi KTS, Bhat MY, Gopal C, Sharma J, Pandey A. Profiling Kinase Activities for Precision Oncology in Diffuse Gastric Cancer. OMICS : A JOURNAL OF INTEGRATIVE BIOLOGY 2024; 28:76-89. [PMID: 38271566 DOI: 10.1089/omi.2023.0173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2024]
Abstract
Gastric cancer (GC) remains a leading cause of cancer-related mortality globally. This is due to the fact that majority of the cases of GC are diagnosed at an advanced stage when the treatment options are limited and prognosis is poor. The diffuse subtype of gastric cancer (DGC) under Lauren's classification is more aggressive and usually occurs in younger patients than the intestinal subtype. The concept of personalized medicine is leading to the identification of multiple biomarkers in a large variety of cancers using different combinations of omics technologies. Proteomic changes including post-translational modifications are crucial in oncogenesis. We analyzed the phosphoproteome of DGC by using paired fresh frozen tumor and adjacent normal tissue from five patients diagnosed with DGC. We found proteins involved in the epithelial-to-mesenchymal transition (EMT), c-MYC pathway, and semaphorin pathways to be differentially phosphorylated in DGC tissues. We identified three kinases, namely, bromodomain adjacent to the zinc finger domain 1B (BAZ1B), WNK lysine-deficient protein kinase 1 (WNK1), and myosin light-chain kinase (MLCK) to be hyperphosphorylated, and one kinase, AP2-associated protein kinase 1 (AAK1), to be hypophosphorylated. LMNA hyperphosphorylation at serine 392 (S392) was demonstrated in DGC using immunohistochemistry. Importantly, we have detected heparin-binding growth factor (HDGF), heat shock protein 90 (HSP90), and FTH1 as potential therapeutic targets in DGC, as drugs targeting these proteins are currently under investigation in clinical trials. Although these new findings need to be replicated in larger study samples, they advance our understanding of signaling alterations in DGC, which could lead to potentially novel actionable targets in GC.
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Affiliation(s)
- Smrita Singh
- Manipal Academy of Higher Education (MAHE), Manipal, India
- Institute of Bioinformatics, International Technology Park, Bangalore, India
- Center for Molecular Medicine, National Institute of Mental Health and Neuro-Sciences (NIMHANS), Bangalore, India
| | - K T Shreya Parthasarathi
- Manipal Academy of Higher Education (MAHE), Manipal, India
- Institute of Bioinformatics, International Technology Park, Bangalore, India
| | - Mohd Younis Bhat
- Institute of Bioinformatics, International Technology Park, Bangalore, India
- Amrita School of Biotechnology, Amrita Vishwapeetham University, Kollam, India
| | - Champaka Gopal
- Department of Pathology, Kidwai Memorial Institute of Oncology, Bangalore, India
| | - Jyoti Sharma
- Manipal Academy of Higher Education (MAHE), Manipal, India
- Institute of Bioinformatics, International Technology Park, Bangalore, India
| | - Akhilesh Pandey
- Manipal Academy of Higher Education (MAHE), Manipal, India
- Center for Molecular Medicine, National Institute of Mental Health and Neuro-Sciences (NIMHANS), Bangalore, India
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota, USA
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2
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Quan ZH, Xu FP, Huang Z, Chen RH, Xu QW, Lin L. LncRNA MYLK antisense RNA 1 activates cell division cycle 42/Neutal Wiskott-Aldrich syndrome protein pathway via microRNA-101-5p to accelerate epithelial-to-mesenchymal transition of colon cancer cells. Kaohsiung J Med Sci 2024; 40:11-22. [PMID: 37950620 DOI: 10.1002/kjm2.12773] [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: 04/06/2023] [Revised: 09/13/2023] [Accepted: 09/20/2023] [Indexed: 11/13/2023] Open
Abstract
Long noncoding RNA MYLK antisense RNA 1 (MYLK-AS1) is the crux in multiple diseases. Therefore, the purpose of this study was to investigate the possible mechanism of MYLK-AS1. A total of 62 colon cancer (CC) specimens and paired adjacent normal tissues were collected, and the expression of MYLK-AS1, microRNA (miR)-101-5p/cell division cycle 42 (CDC42) was detected. CC cell lines were transfected with MYLK-AS1, miR-101-5p, CDC42-related plasmids, and the biological functions and markers of epithelial-mesenchymal transition (EMT) were analyzed. The binding relationship between MYLK-AS1, miR-101-5p, and CDC42 was evaluated. In CC tissues and cell lines, MYLK-AS1 and CDC42 were highly expressed, and miR-101-5p was lowly expressed. Inhibition of MYLK-AS1 or upregulation of miR-101-5p can inhibit CC cell growth and EMT. miR-101-5p inhibited CDC42/N-wasp axis activation in CC cells by targeting CDC42. Knockdown of CDC42 or upregulation of miR-101-5p partially reversed the effects caused by upregulation of MYLK-AS1. MYLK-AS1, which is significantly upregulated in CC, may be a molecular sponge for miR-101-5p, and MYLK-AS1 promotes the activation of the CDC42/N-wasp axis in CC cells by targeting CDC42 through miR-101-5p, which in turn promotes tumor development. MYLK-AS1 may be a potential biomarker and target for CC therapy.
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Affiliation(s)
- Zhen-Hao Quan
- Department of Gastrointestinal Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Fei-Peng Xu
- Department of Gastrointestinal Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Zhe Huang
- Department of Gastrointestinal Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Ri-Hong Chen
- Department of Gastrointestinal Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Qing-Wen Xu
- Department of Gastrointestinal Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Lin Lin
- Department of Gastrointestinal Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
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3
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Luo M, Lei R, Zhao Q, Shen Y, He Z, Xu J. LINC00662 promotes melanoma progression by competitively binding miR-107 and activating the β-catenin signaling pathway. Int J Med Sci 2024; 21:265-276. [PMID: 38169586 PMCID: PMC10758139 DOI: 10.7150/ijms.84072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Accepted: 10/17/2023] [Indexed: 01/05/2024] Open
Abstract
Melanoma is a highly malignant tumor in the body. Long non-coding RNAs (lncRNAs) have been reported to be involved in the development of various tumors. Emerging evidence demonstrates the critical role of lncRNAs in melanoma development. In this study, we aimed to investigate the expression, biological function and regulatory mechanism of LINC00662 in melanomas. First, we found that LINC00662 was up-regulated in melanoma tissues and cell lines. High expression of LINC00662 in melanomas was associated with a poor patient prognosis. Silencing of LINC00662 suppressed the proliferation, migration, and invasion of melanoma cells in vitro and in vivo, while overexpression of LINC00662 promoted melanoma cell proliferation in vitro. Bioinformatics analysis, dual-luciferase assay, and RIP assay confirmed that LINC00662 competitively regulated miR-107. Silencing of LINC00662 upregulated miR-107 expression in a melanoma cell line. Inhibition of miR-107 significantly reversed the inhibitory effect of LINC00662 silencing on cell proliferation and migration. Furthermore, POU3F2 was validated as a downstream target of LINC00662/miR107 and was downregulated when LINC00662 was silenced. Overexpressing POU3F2 attenuated the effect of si-LINC00662 on cellular functions. In addition, the results also showed that the β-catenin pathway was involved in a si-LINC00662-induced function in melanoma. Overall, our results confirmed that LINC00662 promoted melanoma progression by sponging miR107 and inducing POU3F2, highlighting the mechanism of the LINC00662/miR-107/POU3F2 axis in melanoma cell proliferation and invasion.
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Affiliation(s)
| | | | | | | | - Zhigang He
- Department of Plastic Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University; Hangzhou, China
| | - Jinghong Xu
- Department of Plastic Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University; Hangzhou, China
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4
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Jin H, Liu B, Guo X, Qiao X, Jiao W, Yang L, Song X, Wei Y, Jin T. MYLK and CALD1 as molecular targets in bladder cancer. Medicine (Baltimore) 2023; 102:e36302. [PMID: 38013282 PMCID: PMC10681608 DOI: 10.1097/md.0000000000036302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 11/03/2023] [Indexed: 11/29/2023] Open
Abstract
Bladder cancer (BC) is a malignant tumor that occurs in bladder mucosa. However, relationship between myosin light chain kinase (MYLK) and CALD1 and BC remains unclear. The BC datasets GSE65635 and GSE100926 were downloaded from gene expression omnibus by GPL14951 and GPL14550. Multiple datasets were merged and batched. Differentially expressed genes (DEGs) were screened and weighted gene co-expression network analysis was performed. gene ontology (GO) and Kyoto Encyclopedia of Gene and Genome analysis, gene set enrichment analysis, immune infiltration analysis, survival analysis and Comparative Toxicogenomics Database were performed. TargetScan screened miRNAs that regulated central DEGs. 1026 DEGs were identified. According to GO analysis, DEGs were mainly enriched in cancer pathway, cGMP-PKG signaling pathway, Apelin signaling pathway and proteoglycans in cancer. The enrichment items are similar to GO and Kyoto Encyclopedia of Gene and Genome enrichment projects for DEGs, which were mainly enriched in cancer pathways and leukocyte trans-endothelial cell migration. Among enrichment projects of metascape, GO has regulation of the enzyme-linked receptor protein signaling pathway and silk-based process, as well as an enrichment network stained by enrichment terms and P values. Nine core genes (ACTA2, MYLK, MYH11, MYL9, ACTG2, TPM1, TPM2, TAGLN and CALD1) were obtained, which were highly expressed in tumor tissue samples and lowly expressed in normal tissue samples. Nine genes were associated with necrosis, inflammation, tumor, edema, and ureteral obstruction. MYLK and CALD1 are highly expressed in the BC. The higher expression of MYLK and CALD1, the worse prognosis.
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Affiliation(s)
- Hui Jin
- Department of Oncology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Bin Liu
- Department of urology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Xin Guo
- Research Center, Hebei Province Hospital of Chinese Medicine, Affiliated Hospital of Hebei University of Traditional Chinese Medicine, Shijiazhuang, Hebei, China. Department of Pathology and Laboratory Medicine, Department of Pathology, Kanazawa Medical University, Uchinada, Ishikawa, Japan
| | - Xi Qiao
- Department of anesthesiology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Wenpeng Jiao
- Department of radiotherapy, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Liman Yang
- Department of ophthalmology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Xiaosen Song
- Department of urology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Yueyue Wei
- Department of urology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Tingting Jin
- Department of urology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
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5
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Qin Y, Tu X, Huang M, Ma C, Huang Q, Huang Q, Shu H, Ou C. Novel Long Noncoding RNAs, LINC01093 and MYLK-AS1, Serve as Potential Diagnostic and Prognostic Biomarkers or Hepatocellular Carcinoma. DNA Cell Biol 2023; 42:488-497. [PMID: 37527208 DOI: 10.1089/dna.2022.0566] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/03/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is one of the most fatal human malignancies worldwide. In this research, we aimed to identify long noncoding RNAs (lncRNAs) as biomarkers for HCC diagnosis and prognosis. lncRNA expression profiles were obtained from Gene Expression Omnibus and The Cancer Genome Atlas databases. The differentially expressed lncRNAs between HCC and adjacent tissues were analyzed with bioinformatic tools. Four lncRNAs with area under the curve of the receiver operating characteristic curve >0.9 were selected from both datasets. Univariate and Kaplan-Meier analyses were performed to obtain LINC01093, MYLK-AS1, and MCM3AP-AS1 as the optimal diagnostic and prognostic biomarkers. Finally, qPCR confirmed that LINC01093 and MYLK-AS1 were significantly differentially expressed in HCC and adjacent normal tissues. In general, we demonstrated that novel lncRNAs, LINC01093 and MYLK-AS1, could be used as potential diagnostic and prognostic biomarkers for HCC.
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Affiliation(s)
- Yanming Qin
- Department of Clinical Laboratory, Guangxi Medical University Cancer Hospital, Nanning City, People's Republic of China
| | - Xin Tu
- Department of Clinical Laboratory, Liuzhou Municipal Liutie Central Hospital, Liuzhou, People's Republic of China
| | - Meifang Huang
- Department of Clinical Laboratory, Guangxi Medical University Cancer Hospital, Nanning City, People's Republic of China
| | - Caifang Ma
- Department of Clinical Laboratory, Guangxi Medical University Cancer Hospital, Nanning City, People's Republic of China
| | - Qiongqing Huang
- Department of Clinical Laboratory, Guangxi Medical University Cancer Hospital, Nanning City, People's Republic of China
| | - Qiqi Huang
- Department of Clinical Laboratory, Guangxi Medical University Cancer Hospital, Nanning City, People's Republic of China
| | - Hong Shu
- Department of Clinical Laboratory, Guangxi Medical University Cancer Hospital, Nanning City, People's Republic of China
| | - Chao Ou
- Department of Clinical Laboratory, Guangxi Medical University Cancer Hospital, Nanning City, People's Republic of China
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6
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Bo W, Wang XG, Zhang M, Zhang Z. ZNF655 mediated by LINC01210/miR-124-3p axis promotes the progression of gastric cancer. Kaohsiung J Med Sci 2023; 39:200-208. [PMID: 36519409 DOI: 10.1002/kjm2.12634] [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: 06/15/2022] [Revised: 10/21/2022] [Accepted: 11/08/2022] [Indexed: 12/23/2022] Open
Abstract
Gastric cancer (GC) is a common malignant tumor that usually originates from the epithelium of the gastric mucosa. ZNF655 was a suppressor gene of many cancers. However, the mechanism of ZNF655 in GC remains unknown. Quantitative polymerase chain reaction was used to assess the expression of ZNF655, LINC01210, and miR-124-3p. Western blotting was used to monitor ZNF655 protein expression. MTT, clone formation, transwell, and flow cytometry were all used to investigate the functions of GC cells. The interactions between ZNF655, LINC01210, and miR-124-3p were confirmed using the dual-luciferase reporter gene assay and the RIP assay. ZNF655 was highly expressed in GC cells. ZNF655 knockdown reduced GC cell viability, proliferation, migration, invasion, and induced apoptosis. The level of miR-124-3p was significantly reduced in GC cells. Besides, miR-124-3p targeted ZNF655 and inhibited its expression. MiR-124-3p mimics inhibited GC cell progression, but ZNF655 overexpression reversed these effects. Moreover, LINC01210 was found to be highly expressed in GC cells and to be able to sponge miR-124-3p. Furthermore, inhibiting miR-124-3p or increasing ZNF655 could counteract the effects of LINC01210 knockdown on GC cell development. Finally, ZNF655 promoted GC cell progression and was regulated by the LINC01210/miR-124-3p axis.
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Affiliation(s)
- Wei Bo
- Department of Pathology, Shenyang Medical College, Shenyang, China
| | - Xu-Guang Wang
- Department of Pathology, Shenyang Medical College, Shenyang, China
| | - Min Zhang
- Department of Pathology, Shenyang Medical College, Shenyang, China
| | - Zhong Zhang
- Department of Pathology, Shenyang Medical College, Shenyang, China
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7
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Guo J, Zheng W, Liu Y, Zhou M, Shi Y, Lei M, Zhang C, Liu Z. Long non-coding RNA DLX6-AS1 is the key mediator of glomerular podocyte injury and albuminuria in diabetic nephropathy by targeting the miR-346/GSK-3β signaling pathway. Cell Death Dis 2023; 14:172. [PMID: 36854759 PMCID: PMC9975222 DOI: 10.1038/s41419-023-05695-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 02/15/2023] [Accepted: 02/17/2023] [Indexed: 03/02/2023]
Abstract
Progressive albuminuria is the primary clinical symptom of diabetic nephropathy (DN), leading to a gradual decline in kidney function. DLX6-AS1 was the first reported long non-coding RNA (lncRNA) to participate in organogenesis and play crucial roles in the brain or neural cell development. Herein, we investigated the DLX6-AS1 (Dlx6-os1 in mice) role in DN pathogenesis. We found that DLX6-AS1 expression in DN patients correlated with the extent of albuminuria. Dlx6-os1 overexpression induced cellular damage and inflammatory responses in cultured podocytes through miR-346-mediated regulation of the GSK-3β pathway. In various established diabetic and newly developed knockout mouse models, Dlx6-os1 knockdown/knockout significantly reduced podocyte injury and albuminuria. The Dlx6-os1 effects were remarkably modulated by miR-346 mimics or mutants and significantly diminished in podocyte-specific GSK-3β-knockout mice. Thus, DLX6-AS1 (Dlx6-os1) promotes DN development by accelerating podocyte injury and inflammation through the upregulation of the GSK-3β pathway, providing a novel molecular target for DN therapy.
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Affiliation(s)
- Jia Guo
- Nephrology Research Center, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, P. R. China.
- Institute of Nephrology, Zhengzhou University, Zhengzhou, 450052, P. R. China.
- Henan Province Research Center for Kidney Disease, Zhengzhou, 450052, P. R. China.
- Key Laboratory of Precision Diagnosis and Treatment for Chronic Kidney Disease in Henan Province, Zhengzhou, 450052, P. R. China.
| | - Wen Zheng
- Nephrology Research Center, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, P. R. China
- Institute of Nephrology, Zhengzhou University, Zhengzhou, 450052, P. R. China
- Henan Province Research Center for Kidney Disease, Zhengzhou, 450052, P. R. China
- Key Laboratory of Precision Diagnosis and Treatment for Chronic Kidney Disease in Henan Province, Zhengzhou, 450052, P. R. China
| | - Yong Liu
- Nephrology Research Center, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, P. R. China
- Institute of Nephrology, Zhengzhou University, Zhengzhou, 450052, P. R. China
- Henan Province Research Center for Kidney Disease, Zhengzhou, 450052, P. R. China
- Key Laboratory of Precision Diagnosis and Treatment for Chronic Kidney Disease in Henan Province, Zhengzhou, 450052, P. R. China
| | - Mengwen Zhou
- Nephrology Research Center, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, P. R. China
- Institute of Nephrology, Zhengzhou University, Zhengzhou, 450052, P. R. China
- Henan Province Research Center for Kidney Disease, Zhengzhou, 450052, P. R. China
- Key Laboratory of Precision Diagnosis and Treatment for Chronic Kidney Disease in Henan Province, Zhengzhou, 450052, P. R. China
| | - Yan Shi
- Nephrology Research Center, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, P. R. China
- Institute of Nephrology, Zhengzhou University, Zhengzhou, 450052, P. R. China
- Henan Province Research Center for Kidney Disease, Zhengzhou, 450052, P. R. China
- Key Laboratory of Precision Diagnosis and Treatment for Chronic Kidney Disease in Henan Province, Zhengzhou, 450052, P. R. China
| | - Min Lei
- Nephrology Research Center, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, P. R. China
- Institute of Nephrology, Zhengzhou University, Zhengzhou, 450052, P. R. China
- Henan Province Research Center for Kidney Disease, Zhengzhou, 450052, P. R. China
- Key Laboratory of Precision Diagnosis and Treatment for Chronic Kidney Disease in Henan Province, Zhengzhou, 450052, P. R. China
| | - Chaojie Zhang
- Nephrology Research Center, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, P. R. China
- Institute of Nephrology, Zhengzhou University, Zhengzhou, 450052, P. R. China
- Henan Province Research Center for Kidney Disease, Zhengzhou, 450052, P. R. China
- Key Laboratory of Precision Diagnosis and Treatment for Chronic Kidney Disease in Henan Province, Zhengzhou, 450052, P. R. China
| | - Zhangsuo Liu
- Nephrology Research Center, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, P. R. China.
- Institute of Nephrology, Zhengzhou University, Zhengzhou, 450052, P. R. China.
- Henan Province Research Center for Kidney Disease, Zhengzhou, 450052, P. R. China.
- Key Laboratory of Precision Diagnosis and Treatment for Chronic Kidney Disease in Henan Province, Zhengzhou, 450052, P. R. China.
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Liu F, Xiong QW, Wang JH, Peng WX. Roles of lncRNAs in childhood cancer: Current landscape and future perspectives. Front Oncol 2023; 13:1060107. [PMID: 36923440 PMCID: PMC10008945 DOI: 10.3389/fonc.2023.1060107] [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: 10/02/2022] [Accepted: 02/14/2023] [Indexed: 03/03/2023] Open
Abstract
According to World Health Organization (WHO), cancer is the leading cause of death for children and adolescents. Leukemias, brain cancers, lymphomas and solid tumors, such as neuroblastoma, ostesarcoma and Wilms tumors are the most common types of childhood cancers. Approximately 400,000 children and adolescents between the ages of 0 and 19 are diagnosed with cancer each year worldwide. The cancer incidence rates have been rising for the past few decades. Generally, the prognosis of childhood cancers is favorable, but the survival rate for many unresectable or recurring cancers is substantially worse. Although random genetic mutations, persistent infections, and environmental factors may serve as contributing factors for many pediatric malignancies, the underlying mechanisms are yet unknown. Long non-coding RNAs (lncRNAs) are a group of transcripts with longer than 200 nucleotides that lack the coding capacity. However, increasing evidence indicates that lncRNAs play vital regulatory roles in cancer initiation and development in both adults and children. In particular, many lncRNAs are stable in cancer patients' body fluids such as blood and urine, suggesting that they could be used as novel biomarkers. In support of this notion, lncRNAs have been identified in liquid biopsy samples from pediatric cancer patients. In this review, we look at the regulatory functions and underlying processes of lncRNAs in the initiation and progression of children cancer and discuss the potential of lncRNAs as biomarkers for early detection. We hope that this article will help researchers explore lncRNA functions and clinical applications in pediatric cancers.
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Affiliation(s)
- Fei Liu
- Department of Nephrology, Children's Hospital, National Clinical Research Center for Child Health, Zhejiang University School of Medicine, Hangzhou, China
| | - Qian-Wen Xiong
- Department of Nephrology, Children's Hospital, National Clinical Research Center for Child Health, Zhejiang University School of Medicine, Hangzhou, China.,Department of Surgical Oncology, Children's Hospital, National Clinical Research Center for Child Health, Zhejiang University School of Medicine, Hangzhou, China
| | - Jin-Hu Wang
- Department of Surgical Oncology, Children's Hospital, National Clinical Research Center for Child Health, Zhejiang University School of Medicine, Hangzhou, China.,Cancer Center, Zhejiang University, Hangzhou, China
| | - Wan-Xin Peng
- Department of Nephrology, Children's Hospital, National Clinical Research Center for Child Health, Zhejiang University School of Medicine, Hangzhou, China.,Department of Surgical Oncology, Children's Hospital, National Clinical Research Center for Child Health, Zhejiang University School of Medicine, Hangzhou, China.,Cancer Center, Zhejiang University, Hangzhou, China
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9
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Akbari A, Abbasi S, Borumandnia N, Eshkiki ZS, Sedaghat M, Tabaeian SP, Kashani AF, Talebi A. Epigenetic regulation of gastrointestinal cancers mediated by long non-coding RNAs. Cancer Biomark 2022; 35:359-377. [PMID: 36404536 DOI: 10.3233/cbm-220142] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Long noncoding RNAs (lncRNAs), as well-known modulator of the epigenetic processes, have been shown to contribute to normal cellular physiological and pathological conditions such as cancer. Through the interaction with epigenetic regulators, an aberrant regulation of gene expression can be resulted due to their dysregulation, which in turn, can be involved in tumorigenesis. In the present study, we reviewed the lncRNAs' function and mechanisms that contributed to aberrant epigenetic regulation, which is directly related to gastrointestinal cancer (GI) development and progression. Findings indicated that epigenetic alterations may involve in tumorigenesis and are valuable biomarkers in case of diagnosing, assessing of risk factors, and predicting of GI cancers. This review summarized the accumulated evidence for biological and clinical application to use lncRNAs in GI cancers, including colorectal, gastric, oral, liver, pancreatic and oesophageal cancer.
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Affiliation(s)
- Abolfazl Akbari
- Colorectal Research Center, Iran University of Medical Sciences, Tehran, Iran.,Cancer Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Somayeh Abbasi
- Department of Mathematics, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran
| | - Nasrin Borumandnia
- Urology and Nephrology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Zahra Shokati Eshkiki
- Alimentary Tract Research Center, Clinical Sciences Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Meghdad Sedaghat
- Department of Internal Medicine, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Seidamir Pasha Tabaeian
- Colorectal Research Center, Iran University of Medical Sciences, Tehran, Iran.,Department of Internal Medicine, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | | | - Atefeh Talebi
- Colorectal Research Center, Iran University of Medical Sciences, Tehran, Iran
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10
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Targeting the Hippo Pathway in Gastric Cancer and Other Malignancies in the Digestive System: From Bench to Bedside. Biomedicines 2022; 10:biomedicines10102512. [PMID: 36289774 PMCID: PMC9599207 DOI: 10.3390/biomedicines10102512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 09/29/2022] [Accepted: 09/30/2022] [Indexed: 12/24/2022] Open
Abstract
The Hippo pathway is an evolutionally conserved signaling cascade that controls organ size and tissue regeneration under physiological conditions, and its aberrations have been well studied to promote tumor initiation and progression. Dysregulation of the Hippo tumor suppressor signaling frequently occurs in gastric cancer (GC) and other solid tumors and contributes to cancer development through modulating multiple aspects, including cell proliferation, survival, metastasis, and oncotherapy resistance. In the clinic, Hippo components also possess diagnostic and prognostic values for cancer patients. Considering its crucial role in driving tumorigenesis, targeting the Hippo pathway may greatly benefit developing novel cancer therapies. This review summarizes the current research progress regarding the core components and regulation of the Hippo pathway, as well as the mechanism and functional roles of their dysregulation in gastrointestinal malignancies, especially in GC, and discusses the therapeutic potential of targeting the Hippo pathway against cancers.
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11
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LncRNA MNX1-AS1: A novel oncogenic propellant in cancers. Biomed Pharmacother 2022; 149:112801. [PMID: 35290890 DOI: 10.1016/j.biopha.2022.112801] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 03/03/2022] [Accepted: 03/07/2022] [Indexed: 11/23/2022] Open
Abstract
To date, recent studies have shown that long non-coding RNAs (lncRNAs) are key players in gene regulation processes involved in cancer pathogenesis. In general, Motor neuron and pancreas homeobox 1-antisense RNA1 (MNX1-AS1) is highly expressed in all cancers as reported so far and exerts oncogenic effects through different mechanisms. In this review, we comprehensively summarize the detailed mechanisms of potential functions of MNX1-AS1 in different cancer types as well as the latest knowledge highlighting the potential of MNX1-AS1 as a therapeutic target for cancer. Aberrant expression of MNX1-AS1 closely correlates with clinicopathological parameters. such as lymphatic metastasis, tumor size, tumor stage, OS and DFS. Thus, MNX1-AS1 can be used as a diagnostic and prognostic biomarker or even a therapeutic prognostic target. This article reviews its function, molecular mechanism and clinical prognosis in various malignancies.
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Zeng L, Liao Q, Zeng X, Ye J, Yang X, Zhu S, Tang H, Liu G, Cui W, Ma S, Cui S. Noncoding RNAs and hyperthermic intraperitoneal chemotherapy in advanced gastric cancer. Bioengineered 2022; 13:2623-2638. [PMID: 35089117 PMCID: PMC8973587 DOI: 10.1080/21655979.2021.2021348] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Gastric cancer (GC) is one of the most common malignant tumors globally. About 20-30% of patients with gastric cancer show peritoneal implantation metastasis at the first diagnosis. Peritoneal metastasis is responsible for 70% of deaths of patients with advanced gastric cancer. Although there are many ways to treat advanced gastric cancer, the prognosis of patients with recurrence is unsatisfactory. An auxiliary treatment with hyperthermic intraperitoneal chemotherapy (HIPEC), is an internationally recognized recommended treatment for advanced gastric cancer. A series of clinical trials have shown that HIPEC significantly improves the overall survival of patients with cancer. Compared with the cytoreductive surgery (CRS) alone, HIPEC combined with CRS markedly reduced the rate of peritoneal metastasis in patients with ovarian cancer and colorectal cancer. It has been demonstrated that HIPEC alters transcription of many genes by affecting non-coding RNAs, which may contribute to the suppressive effect of HIPEC on the synthesis of nucleic acids and proteins in cancer cells. This paper reviews the recent advances in understanding the role of non-coding RNAs in tumor invasion and metastasis of advanced gastric cancer. We also consider changes in noncoding RNA levels and other molecules in advanced gastric cancer cases treated with HIPEC. We hope that our review will provide a reference for future research on molecular epidemiology and etiology of advanced gastric cancer and promote precise treatment of this malignancy using HIPEC.
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Affiliation(s)
- Lisi Zeng
- Institute of Oncology, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, China
| | - Quanxing Liao
- Department of the Second Area of Gastrointestinal Surgery, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, China
| | - Xiaohui Zeng
- Institute of Oncology, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, China
| | - Jiacai Ye
- Department of Radiotherapy, Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou, China
| | - Xianzi Yang
- Department of Medical Oncology, Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou, China
| | - Siyu Zhu
- Department of Medical Oncology, Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou, China
| | - Hongsheng Tang
- Department of the Second Area of Gastrointestinal Surgery, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, China
| | - Gaojie Liu
- Department of the Second Area of Gastrointestinal Surgery, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, China
| | - Weiwen Cui
- Department of Bioengineering, University of California, Berkeley, California, USA
| | - Shaohua Ma
- Institute of Biopharmaceutical and Health Engineering, Shenzhen International Graduate School, Tsinghua University, Shenzhen, China.,Tsinghua-Berkeley Shenzhen Institute (TBSI), Tsinghua University, Shenzhen, China
| | - Shuzhong Cui
- Department of the Second Area of Gastrointestinal Surgery, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, China.,State Key Laboratory of Respiratory Disease, Guangzhou Medical University, Guangzhou, China
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Wen Z, Li Y, Tan B, Chen Z, Zhao Q, Tan M, Zhao Y, Xia Y, FanΔ L. LINC01088 regulates the miR-95/LATS2 pathway through the ceRNA mechanism to inhibit the growth, invasion and migration of gastric cancer cells. Int J Immunopathol Pharmacol 2022; 36:3946320221108271. [PMID: 35728587 PMCID: PMC9228637 DOI: 10.1177/03946320221108271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Background: In gastric cancer, a malignant condition with a dismal prognosis, long non-coding RNAs (LncRNAs) play a significant regulatory role. They often compete with microRNAs through the ceRNA mechanism to affect the expression of target mRNA. However, the specific clinical value and mechanism of action of LncRNA in gastric cancer are still unclear. Methods: This study detected the expression and clinical value of LINC01088 in gastric cancer tissues. Furthermore, the biological functions of LINC01088 and the regulation mechanism of the miR-95/LATS2 pathway were explored.Results: LINC01088 and LATS2 mRNA expression decreased, and miR-95 increased in gastric cancer tissues. LINC01088 has an excellent positive correlation with LATS2 mRNA, which may be a ceRNA pair; LINC01088 has binding sites with miR-95. Gene interference tests on gastric cancer cell lines revealed that LINC01088 could prevent gastric cancer cells from proliferating, invading, and migrating. The function of LINC01088 is achieved by regulating the miR-95/LATS2 pathway through the ceRNA mechanism.Conclusion: The results of this study show that LINC01088 expression is significantly reduced in gastric cancer tissues and cell lines. LINC01088 inhibits gastric cancer cells’ proliferation, invasion, and migration by regulating the miR-95/LATS2 pathway via the ceRNA mechanism.
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Affiliation(s)
- Zhuan Wen
- Quality control office, 609245The Fourth Hospital of Hebei Medical University, Shijiazhuang, P.R. China
| | - Yong Li
- Third department of Surgery, 609245The Fourth Hospital of Hebei Medical University, Shijiazhuang, P.R. China
| | - Bibo Tan
- Third department of Surgery, 609245The Fourth Hospital of Hebei Medical University, Shijiazhuang, P.R. China
| | - Zihao Chen
- Third department of Surgery, 609245The Fourth Hospital of Hebei Medical University, Shijiazhuang, P.R. China
| | - Qun Zhao
- Third department of Surgery, 609245The Fourth Hospital of Hebei Medical University, Shijiazhuang, P.R. China
| | - Ming Tan
- Third department of Surgery, 609245The Fourth Hospital of Hebei Medical University, Shijiazhuang, P.R. China
| | - Yijie Zhao
- Third department of Surgery, 609245The Fourth Hospital of Hebei Medical University, Shijiazhuang, P.R. China
| | - Yuxiang Xia
- Third department of Surgery, 609245The Fourth Hospital of Hebei Medical University, Shijiazhuang, P.R. China
| | - Liqiao FanΔ
- Third department of Surgery, 609245The Fourth Hospital of Hebei Medical University, Shijiazhuang, P.R. China
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Wang G, Zhang Z, Xia C. Long non-coding RNA LINC00240 promotes gastric cancer progression via modulating miR-338-5p/METTL3 axis. Bioengineered 2021; 12:9678-9691. [PMID: 34842045 PMCID: PMC8810089 DOI: 10.1080/21655979.2021.1983276] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Gastric cancer (GC) is a common cancer with high incidence. Understanding the epidemiology and physiopathology of GC is crucial for formulating novel therapeutic strategies. Recent studies have implicated long non-coding RNA LINC00240, miR-338-5p and methyltransferase-like 3 (METTL3) in the progression of GC. In this study, we investigated the functional role of LINC00240/miR-338-5p/METTL3 axis in regulating the aggressiveness of GC cells. We first demonstrated that LINC00240 was upregulated in GC tissues and GC cell lines. High expression of LINC00240 was associated with advanced TNM stage, a higher extent of distant metastasis and lymph nodes metastasis, and the poor overall and disease-free survival of the patients. In GC cell lines, the knockdown of LINC00240 inhibited GC cell proliferation and migration, but induced cell apoptosis. We further identified and validated the functional interaction between LINC00240 and miR-338-5p. miR-338-5p seemed to function as a downstream target negatively regulated by LINC00240, and miR-338-5p could target METTL3 at 3ʹ UTR to downregulate its expression. In GC tissues, the expression of miR-338-5p was negatively correlated with LINC00240, and the expression of miR-338-5p was negatively correlated with METTL3. Importantly, miR-338-5p inhibitor or METTL3 overexpression could rescue the inhibitory effect of LINC00240 knockdown on cell proliferation and migration, and inhibit the apoptosis induction in GC cells. Taken together, our data imply that the upregulation of LINC00240 in GC cells promotes the malignant phenotype by modulating miR-338-5p/METTL3 axis, which could serve as potential therapeutic targets for GC treatment.
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Affiliation(s)
- Guoping Wang
- Department of Endoscopy Center, First People's Hospital of Wenling, Wenling, Zhejiang, China
| | - Zhongchen Zhang
- Department of Endoscopy Center, First People's Hospital of Wenling, Wenling, Zhejiang, China
| | - Chenmei Xia
- Department of Endoscopy Center, First People's Hospital of Wenling, Wenling, Zhejiang, China
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Zhang M, Yang L, Hou L, Tang X. LncRNA SNHG1 promotes tumor progression and cisplatin resistance through epigenetically silencing miR-381 in breast cancer. Bioengineered 2021; 12:9239-9250. [PMID: 34806925 PMCID: PMC8809974 DOI: 10.1080/21655979.2021.1996305] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
The long-non-coding RNA (lncRNA) small nucleolar RNA host gene 1 (SNHG1) is a known cause of tumorigenesis. Nevertheless, it’s yet unclear how lncRNA SNHG1 influences breast cancer. Herein, we explored the mechanisms through which SNHG1 modulates breast cancer tumor progression. Our findings demonstrated that SNHG1 is significantly upregulated in breast cancer tissues and cells. High SNHG1 levels were closely linked to reduced survival rates in breast cancer patients. SNHG1 silencing has been shown to inhibit the proliferative, migratory, and invasive activity of breast cancer cells. Moreover, SNHG1 silencing enhanced cisplatin (DDP) sensitivity of these cells through improving DDP-induced cell apoptosis. Mechanistically, SNHG1 was found to interact with enhancer of zeste homolog 2 (EZH2), recruiting EZH2 to trigger trimethylation of histone H3 lysine 27 (H3K27me3), thus epigenetically inhibiting miR-381 transcription in these cells. Overexpression of miR-381 inhibited tumor progression and sensitized cells to the chemotherapeutic reagent DDP. More importantly, rescue experiments demonstrated that miR-381 inhibition could inverse the tumor-suppressive effect of SNHG1 silencing in breast cancer. In summary, SNHG1 silencing suppressed tumor progression and overcame breast cancer cell DDP resistance via the epigenetic suppression of miR-381 expression. Our study revealed that SNHG1 served as a novel therapeutic target for breast cancer chemoresistance.
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Affiliation(s)
- Mingkun Zhang
- Department of Thyroid, Breast and Vascular Surgery, Xijing Hospital, the Fourth Military Medical University, Xi'an, China
| | - Liu Yang
- Department of Thyroid, Breast and Vascular Surgery, Xijing Hospital, the Fourth Military Medical University, Xi'an, China
| | - Lan Hou
- Department of Thyroid, Breast and Vascular Surgery, Xijing Hospital, the Fourth Military Medical University, Xi'an, China
| | - Xueyuan Tang
- Department of Reproductive Endocrinology, Xi'an International Medical Center Hospital, Xi'an, China
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Li H, Liu F, Wang X, Li M, Li Z, Xie Y, Guo Y. Identification of Hub lncRNAs Along With lncRNA-miRNA-mRNA Network for Effective Diagnosis and Prognosis of Papillary Thyroid Cancer. Front Pharmacol 2021; 12:748867. [PMID: 34721037 PMCID: PMC8548639 DOI: 10.3389/fphar.2021.748867] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 09/22/2021] [Indexed: 02/05/2023] Open
Abstract
Long noncoding RNAs (lncRNAs) play important roles in tumorigenesis and progression of different cancers and they have been potential biomarkers for cancer diagnosis and prognosis. As the most common endocrine malignancy, precise diagnosis and prognosis of papillary thyroid cancer (PTC) is of great clinical significance. Here, we aim to identify new hub lncRNAs for marking PTC and constructed prognostics signatures based on lncRNA- miRNA-mRNA competing endogenous RNAs (ceRNA) network to predict overall survival (OS) and disease-free survival (DFS) respectively. Five reliable hub lncRNAs were identified by integrating differential genes of four Gene Expression Omnibus (GEO) gene chips using the RobustRankAggreg (RRA) method. Based on differential analyses and interaction prediction, a lncRNA-mRNA co-expression network and a lncRNA-miRNA-mRNA ceRNA network were established. Then a comprehensive function characterization of the five hub lncRNAs was performed, including validation dataset testing, receiver operating characteristic (ROC) curve analysis, and functional analysis on two networks. All results suggest that these five hub lncRNAs could be potential biomarkers for marking PTC. The ceRNA network was used to identify RNAs which were associated with PTC prognosis. Two prognostic signatures were developed using univariate and step-wise multivariate Cox regression analyses and both of them were independent prognostic indicators for PTC OS and DFS. Tumor microenvironment difference analysis between high and low-risk patients showed that dendritic cells activated and macrophages M0 may be a possible target for immunotherapy of PTC. In addition, disclosing the potential drugs that may reverse the expression of hub genes may improve the prognosis of patients with PTC. Here, connectivity map (CMap) analysis indicates that three bioactive chemicals (pioglitazone, benserazide, and SB-203580) are promising therapeutic agents for PTC. So, the paper presents a comprehensive study on diagnosis, prognosis, and potential drug screening for PTC based on the five hub lncRNAs identified by us.
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Affiliation(s)
- Haiyan Li
- College of Chemistry, Sichuan University, Chengdu, China
| | - Feng Liu
- Department of Thyroid Surgery, West China Hospital of Sichuan University, Chengdu, China
| | - Xiaoyang Wang
- College of Chemistry, Sichuan University, Chengdu, China
| | - Menglong Li
- College of Chemistry, Sichuan University, Chengdu, China
| | - Zhihui Li
- Department of Thyroid Surgery, West China Hospital of Sichuan University, Chengdu, China.,Laboratory of Thyroid and Parathyroid Disease, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital of Sichuan University, Chengdu, China
| | - Yongmei Xie
- Department of Thyroid Surgery, West China Hospital of Sichuan University, Chengdu, China
| | - Yanzhi Guo
- College of Chemistry, Sichuan University, Chengdu, China
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Li Y, Tian M, Zhang D, Zhuang Y, Li Z, Xie S, Sun K. Long Non-Coding RNA Myosin Light Chain Kinase Antisense 1 Plays an Oncogenic Role in Gallbladder Carcinoma by Promoting Chemoresistance and Proliferation. Cancer Manag Res 2021; 13:6219-6230. [PMID: 34393514 PMCID: PMC8357316 DOI: 10.2147/cmar.s323759] [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: 06/07/2021] [Accepted: 07/29/2021] [Indexed: 12/20/2022] Open
Abstract
Background Long non-coding RNAs (lncRNAs) have been reported to play critical roles in human tumours, including gallbladder carcinoma (GBC). However, their biological functions and molecular mechanisms in tumorigenesis and progression remain largely unknown. Methods Quantitative polymerase chain reaction (qPCR) was used to verify the expression of lncRNA myosin light chain kinase antisense RNA 1 (MYLK-AS1) in 120 pairs of GBC tissues and paired adjacent non-tumour tissues, as well as in six different GBC cell lines (NOZ, EH-GB1, OCUG-1, GBC-SD, SGC-996 and QBC-939). Cell counting kit 8 was applied to explore cell proliferation and drug sensitivity assays. The target miRNAs (miR) of MYLK-AS1 and downstream target genes were predicted using Starbase 3.0 software and confirmed by double luciferase reporting test. The expression of proteins was assessed using Western blot assay. Results Here, we demonstrated that MYLK-AS1 was significantly upregulated and correlated with a poor prognosis and poor clinical characteristics in GBC. Furthermore, the forced expression of MYLK-AS1 significantly promoted GBC cell proliferation and resistance to gemcitabine in vitro. Mechanistically, MYLK-AS1 functioned as an efficient miR-217 sponge, thereby releasing the inhibition of enhancer of zeste 2 polycomb repressive complex 2 (EZH2) subunit expression. MYLK-AS1 promoted GBC cell proliferation and resistance to gemcitabine by upregulating EZH2 expression, and EZH2 was confirmed as a direct target of miR-217. Discussion Our results confirmed that the chemoresistant driver MYLK-AS1 might be a promising candidate as a therapeutic target for the treatment of advanced GBC.
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Affiliation(s)
- Yongliang Li
- Department of Emergency, Minhang Hospital, Fudan University, Shanghai, 200040, People's Republic of China
| | - Mi Tian
- Department of Intensive Care Unit, Huashan Hospital, Fudan University, Shanghai, 200040, People's Republic of China
| | - Dongqing Zhang
- Department of Emergency, Minhang Hospital, Fudan University, Shanghai, 200040, People's Republic of China
| | - Yifei Zhuang
- Department of Emergency, Minhang Hospital, Fudan University, Shanghai, 200040, People's Republic of China
| | - Zhimin Li
- Department of Emergency, Minhang Hospital, Fudan University, Shanghai, 200040, People's Republic of China
| | - Shenqi Xie
- Department of Emergency, Minhang Hospital, Fudan University, Shanghai, 200040, People's Republic of China
| | - Keyu Sun
- Department of Emergency, Minhang Hospital, Fudan University, Shanghai, 200040, People's Republic of China
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