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Naseer QA, Malik A, Zhang F, Chen S. Exploring the enigma: history, present, and future of long non-coding RNAs in cancer. Discov Oncol 2024; 15:214. [PMID: 38847897 PMCID: PMC11161455 DOI: 10.1007/s12672-024-01077-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Accepted: 06/03/2024] [Indexed: 06/10/2024] Open
Abstract
Long noncoding RNAs (lncRNAs), which are more than 200 nucleotides in length and do not encode proteins, play crucial roles in governing gene expression at both the transcriptional and posttranscriptional levels. These molecules demonstrate specific expression patterns in various tissues and developmental stages, suggesting their involvement in numerous developmental processes and diseases, notably cancer. Despite their widespread acknowledgment and the growing enthusiasm surrounding their potential as diagnostic and prognostic biomarkers, the precise mechanisms through which lncRNAs function remain inadequately understood. A few lncRNAs have been studied in depth, providing valuable insights into their biological activities and suggesting emerging functional themes and mechanistic models. However, the extent to which the mammalian genome is transcribed into functional noncoding transcripts is still a matter of debate. This review synthesizes our current understanding of lncRNA biogenesis, their genomic contexts, and their multifaceted roles in tumorigenesis, highlighting their potential in cancer-targeted therapy. By exploring historical perspectives alongside recent breakthroughs, we aim to illuminate the diverse roles of lncRNA and reflect on the broader implications of their study for understanding genome evolution and function, as well as for advancing clinical applications.
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Affiliation(s)
- Qais Ahmad Naseer
- Department of Laboratory Medicine, School of Medicine, Jiangsu University, 301 Xuefu Road, Zhenjiang, 212013, China
| | - Abdul Malik
- Department of Laboratory Medicine, School of Medicine, Jiangsu University, 301 Xuefu Road, Zhenjiang, 212013, China
| | - Fengyuan Zhang
- Department of Laboratory Medicine, School of Medicine, Jiangsu University, 301 Xuefu Road, Zhenjiang, 212013, China
| | - Shengxia Chen
- Department of Laboratory Medicine, School of Medicine, Jiangsu University, 301 Xuefu Road, Zhenjiang, 212013, China.
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2
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Shen GY, Zhang Y, Huang RZ, Huang ZY, Yang LY, Chen DZ, Yang SB. FOXP4-AS1 promotes CD8 + T cell exhaustion and esophageal cancer immune escape through USP10-stabilized PD-L1. Immunol Res 2024:10.1007/s12026-024-09482-9. [PMID: 38687433 DOI: 10.1007/s12026-024-09482-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Accepted: 04/15/2024] [Indexed: 05/02/2024]
Abstract
Esophageal cancer (EC) is the 9th most frequently diagnosed malignancy globally with unfavorable prognosis. Immune escape is one of the principal factors leading to poor survival, however, the mechanism underlying immune escape remains largely uninvestigated. The xenograft mouse model and EC cell-CD8+ cytotoxic T lymphocytes (CTLs) co-culture system were established. Immunohistochemistry, qRT-PCR or western blot were employed to detect the levels of long non-coding RNA (lncRNA) FOXP4-AS1, PD-L1, USP10 and other molecules. The abundance of T cells, cytokine production and cell apoptosis were monitored by flow cytometry. The viability of CTLs was assessed by Trypan blue staining. The binding between FOXP4-AS1 and USP10 was validated by RNA pull-down assay, and the interaction between USP10 and PD-L1, as well as the ubiquitination of PD-L1, were detected by co-immunoprecipitation. The elevation of FOXP4-AS1 in EC was associated with decreased CTL abundance, and upregulated PD-L1 facilitated CTL apoptosis in EC. FOXP4-AS1 accelerated EC tumor growth by decreasing the abundance of tumor infiltrating CTLs in vivo. FOXP4-AS1 inhibited the viability of CTLs and facilitated the cytotoxicity and exhaustion of CTLs. In Kyse 450 cell-CTL co-culture system, FOXP4-AS1 suppressed the viability and abundance of CTLs, and inhibited EC cell apoptosis via PD-L1. Mechanistically, FOXP4-AS1 regulated the ubiquitination of PD-L1 through deubiquitinating enzyme USP10. FOXP4-AS1 promoted CTL exhaustion and EC immune escape through USP10-stabilized PD-L1. HIGHLIGHTS: PD-L1 facilitated CD8+ T cell apoptosis in EC. Upregulated FOXP4-AS1 promoted EC tumor growth by inhibiting the viability and facilitating the cytotoxicity and exhaustion of tumor infiltrating CD8+ T cells. FOXP4-AS1 suppressed the viability and abundance of CD8+ T cells through USP10-mediated deubiquitination of PD-L1.
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Affiliation(s)
- Guo-Yi Shen
- Department of Cardiothoracic Surgery, Zhangzhou Affiliated Hospital of Fujian Medical University, No. 59, Shengli West Road, Xiangcheng District, Zhangzhou City, 363000, Fujian Province, China.
| | - Yi Zhang
- Department of Cardiothoracic Surgery, Zhangzhou Affiliated Hospital of Fujian Medical University, No. 59, Shengli West Road, Xiangcheng District, Zhangzhou City, 363000, Fujian Province, China
| | - Rong-Zhi Huang
- Department of Cardiothoracic Surgery, Zhangzhou Affiliated Hospital of Fujian Medical University, No. 59, Shengli West Road, Xiangcheng District, Zhangzhou City, 363000, Fujian Province, China
| | - Zhi-Yong Huang
- Department of Cardiothoracic Surgery, Zhangzhou Affiliated Hospital of Fujian Medical University, No. 59, Shengli West Road, Xiangcheng District, Zhangzhou City, 363000, Fujian Province, China
| | - Le-Yi Yang
- Department of Cardiothoracic Surgery, Zhangzhou Affiliated Hospital of Fujian Medical University, No. 59, Shengli West Road, Xiangcheng District, Zhangzhou City, 363000, Fujian Province, China
| | - Ding-Zhu Chen
- Department of Cardiothoracic Surgery, Zhangzhou Affiliated Hospital of Fujian Medical University, No. 59, Shengli West Road, Xiangcheng District, Zhangzhou City, 363000, Fujian Province, China
| | - Shao-Bin Yang
- Department of Cardiothoracic Surgery, Zhangzhou Affiliated Hospital of Fujian Medical University, No. 59, Shengli West Road, Xiangcheng District, Zhangzhou City, 363000, Fujian Province, China
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3
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Baili E, Gazouli M, Lazaris AC, Kanavidis P, Boura M, Michalinos A, Charalabopoulos A, Liakakos T, Alexandrou A. Genetic Impact of HOTAIR, LINC00951, POLR2E and HULC Polymorphisms in Histopathological and Laboratory Prognostic Factors in Esophageal Cancer in the West: A Case-Control Study. Cancers (Basel) 2024; 16:537. [PMID: 38339289 PMCID: PMC10854877 DOI: 10.3390/cancers16030537] [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: 12/30/2023] [Revised: 01/21/2024] [Accepted: 01/24/2024] [Indexed: 02/12/2024] Open
Abstract
Long non-coding RNAs' HOTAIR rs920778, LINC00951 rs11752942, POLR2E rs3787016, and HULC rs7763881 are progressively reported having a close genetic affinity with esophageal carcinogenesis in the East. Nonetheless, their correlation with variables already endorsed as significant prognostic factors in terms of staging, guiding treatment and predicting recurrence, metastasis, and survival have yet to be explored. Herein, we investigated their prognostic value by correlating them with clinicopathological and laboratory prognostic markers in esophageal cancer in the West. Formalin-fixed paraffin-embedded tissue specimens from 95 consecutive patients operated on for esophageal cancer between 2014 and 2018 were compared with 121 healthy community controls. HULC was not detected differently in any of the cancer prognostic subgroups. LINC00951 was underrepresented in Ca19.9 elevated subgroup. HOTAIR was more frequent in both worse differentiation grade and positive Signet-Ring-Cell and Ca19.9 subgroups. POLR2E was identified less frequently in Adenocarcinoma, Signet-Ring-Cell, and Diffuse histologies, as well as in Perineural, Lymphovascular, and Perivascular Invasion positive, while it was overrepresented in CEA positive subgroup. These lncRNAs polymorphisms may hold great potential not only as future therapeutic agents but also as novel markers for predictive analysis of esophageal cancer risk, clinical outcome, and survival. Clinical implications of these findings need to be validated with prospective larger sample-size studies.
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Affiliation(s)
- Efstratia Baili
- Upper Gastrointestinal and General Surgery Unit, First Department of Surgery, Laiko General Hospital, School of Medicine, National and Kapodistrian University of Athens, 15772 Athens, Greece; (P.K.); (M.B.); (A.C.); (T.L.); (A.A.)
- King’s Health Partners, London SE1 9RT, UK
| | - Maria Gazouli
- Laboratory of Biology, School of Medicine, National and Kapodistrian University of Athens, 15772 Athens, Greece;
| | - Andreas C. Lazaris
- First Department of Pathology, School of Medicine, National and Kapodistrian University of Athens, 15772 Athens, Greece;
| | - Prodromos Kanavidis
- Upper Gastrointestinal and General Surgery Unit, First Department of Surgery, Laiko General Hospital, School of Medicine, National and Kapodistrian University of Athens, 15772 Athens, Greece; (P.K.); (M.B.); (A.C.); (T.L.); (A.A.)
| | - Maria Boura
- Upper Gastrointestinal and General Surgery Unit, First Department of Surgery, Laiko General Hospital, School of Medicine, National and Kapodistrian University of Athens, 15772 Athens, Greece; (P.K.); (M.B.); (A.C.); (T.L.); (A.A.)
| | | | - Alexandros Charalabopoulos
- Upper Gastrointestinal and General Surgery Unit, First Department of Surgery, Laiko General Hospital, School of Medicine, National and Kapodistrian University of Athens, 15772 Athens, Greece; (P.K.); (M.B.); (A.C.); (T.L.); (A.A.)
| | - Theodore Liakakos
- Upper Gastrointestinal and General Surgery Unit, First Department of Surgery, Laiko General Hospital, School of Medicine, National and Kapodistrian University of Athens, 15772 Athens, Greece; (P.K.); (M.B.); (A.C.); (T.L.); (A.A.)
| | - Andreas Alexandrou
- Upper Gastrointestinal and General Surgery Unit, First Department of Surgery, Laiko General Hospital, School of Medicine, National and Kapodistrian University of Athens, 15772 Athens, Greece; (P.K.); (M.B.); (A.C.); (T.L.); (A.A.)
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4
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Jiao QH, Wang Y, Zhang AN, Liu QQ, Zhou QB. PSMA7 promotes the malignant proliferation of esophageal cancer. Heliyon 2024; 10:e23173. [PMID: 38173490 PMCID: PMC10761361 DOI: 10.1016/j.heliyon.2023.e23173] [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: 04/16/2023] [Revised: 11/20/2023] [Accepted: 11/28/2023] [Indexed: 01/05/2024] Open
Abstract
Background It is important to explore novel molecules that play a key role in esophageal cancer (ESCA) progression. Methods Two ESCA tissue expression profile microarrays (GSE92396 and GSE17351) data from GEO were downloaded, and differentially expressed genes (DEGs) were analyzed using GEO2R. The DEGs common to both microarrays were analyzed for protein-protein interactions, KEGG and GO. The altered expression of proteasome 20S subunit α 7 (PSMA7) in ESCA tissues was analyzed using information from publicly available databases (GEO, TCGA, TNMplot). PSMA7 was overexpressed or knocked down in Eca109 and KYSE150 cells using transfection, and the effects on cell proliferation, migration, invasion and apoptosis were examined using CCK-8, Transwell, and flow cytometry experiments. Results 284 common DEGs were identified, and 10 core proteins, HSP90AA1, AURKA, CDC6, PCNA, MCM5, KAT2B, GRB2, MYBL2, PSMA7, and CKAP5, involved in ESCA progression were identified. PSMA7 mRNA level was significantly increased in ESCA tissues. PSMA7 overexpression significantly promoted the proliferation, migration and invasion of Eca109 and KYSE150 cells, and significantly promoted apoptosis. In contrast, PSMA7 knockdown inhibited their proliferation and motility, and significantly suppressed apoptosis. Conclusion This study analyzed multiple proteins that may play a key role in ESCA progression, and identified the pro-cancer role of PSMA7.
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Affiliation(s)
- Qing-hua Jiao
- Department of Geriatrics, The Second Hospital Cheeloo College of Medicine Shandong University, Jinan 250000, Shandong, China
| | - Yan Wang
- Department of Geriatrics, The Second Hospital Cheeloo College of Medicine Shandong University, Jinan 250000, Shandong, China
| | - An-na Zhang
- Department of Geriatrics, The Second Hospital Cheeloo College of Medicine Shandong University, Jinan 250000, Shandong, China
| | - Qian-qian Liu
- Department of Geriatrics, The Second Hospital Cheeloo College of Medicine Shandong University, Jinan 250000, Shandong, China
| | - Qing-bo Zhou
- Department of Geriatrics, The Second Hospital Cheeloo College of Medicine Shandong University, Jinan 250000, Shandong, China
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Zhang M, Wang Z, Wu Y, Chen M, Li J, Liu G. Hypoxia-induced factor-1α promotes radioresistance of esophageal cancer cells by transcriptionally activating LINC01116 and suppressing miR-3612 under hypoxia. J Biochem Mol Toxicol 2024; 38:e23551. [PMID: 37983895 DOI: 10.1002/jbt.23551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 08/02/2023] [Accepted: 09/27/2023] [Indexed: 11/22/2023]
Abstract
Esophageal cancer (EC) is a challenging tumor to treat with radiotherapy, often exhibiting resistance to this treatment modality. To explore the factors influencing radioresistance, we focused on the role of hypoxia-induced factor-1α (HIF-1α), and its interaction with the long noncoding RNA long intergenic nonprotein coding RNA 1116 (LINC01116). We analyzed the LINC01116 expression in EC and EC cell lines/human normal esophageal epithelial cell line (Het-1A). LINC01116 was silenced/overexpressed in EC109/KYSE30 cells under hypoxia, followed by radioresistance assessment. We measured HIF-1α levels in hypoxic EC cells and further validated the binding of HIF-1α with LINC01116, analyzing their interaction in EC cells. We then performed experiments in EC109 cells by transfection them with sh-HIF-1α/oe-LINC01116 to verify the effects. Additonally, we analyzed the localization of LINC01116 and its binding with miR-3612, followed by a combined experiment performed to validate the results. Our findings indicated that LINC01116 was highly expressed in EC and further elevated in hypoxic EC cells. LINC01116 was expressed at a high level in EC, which was further elevated in EC cells under hypoxic conditions. Knockdown of LINC01116 triggered EC cell apoptosis, thus suppressing radioresistance. Further investigation revealed that HIF-1α transcriptionally activated LINC01116 expression under hypoxia, and silencing HIF-1α lowered EC cell radioresistance by downregulating LINC01116. Under hypoxic conditions, LINC01116 could function as a sponge for miR-3612 and inhibit its expression. This interaction between LINC01116 and miR-3612 played a crucial role in mediating radioresistance in EC cells. Briefly, under hypoxic conditions, HIF-1α facilitates radioresistance of EC cells by transcriptionally activating LINC01116 expression and downregulating miR-3612.
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Affiliation(s)
- Mengyan Zhang
- Oncology Department, Guangzhou No.1 People's Hospital, Guangzhou City, Guangdong Province, P.R. China
- Thoracic Radiotherapy Department, Fujian Medical University Cancer Hospital Fujian Cancer Hospital, Fuzhou City, Fujian Province, P.R. China
| | - Zhiping Wang
- College of Clinical Medicine for Oncology, Fujian Medical University, Fuzhou City, Fujian Province, P.R. China
| | - Yahua Wu
- Thoracic Radiotherapy Department, Fujian Medical University Union Hospital, Fuzhou City, Fujian Province, P.R. China
| | - Mingqiu Chen
- College of Clinical Medicine for Oncology, Fujian Medical University, Fuzhou City, Fujian Province, P.R. China
| | - Jiancheng Li
- College of Clinical Medicine for Oncology, Fujian Medical University, Fuzhou City, Fujian Province, P.R. China
| | - Guolong Liu
- Oncology Department, Guangzhou No.1 People's Hospital, Guangzhou City, Guangdong Province, P.R. China
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Klekowski J, Zielińska D, Hofman A, Zajdel N, Gajdzis P, Chabowski M. Clinical Significance of Nectins in HCC and Other Solid Malignant Tumors: Implications for Prognosis and New Treatment Opportunities-A Systematic Review. Cancers (Basel) 2023; 15:3983. [PMID: 37568798 PMCID: PMC10416819 DOI: 10.3390/cancers15153983] [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: 06/11/2023] [Revised: 07/17/2023] [Accepted: 07/21/2023] [Indexed: 08/13/2023] Open
Abstract
The nectin family comprises four proteins, nectin-1 to -4, which act as cell adhesion molecules. Nectins have various regulatory functions in the immune system and can be upregulated or decreased in different tumors. The literature research was conducted manually by the authors using the PubMed database by searching articles published before 2023 with the combination of several nectin-related keywords. A total of 43 studies were included in the main section of the review. Nectins-1-3 have different expressions in tumors. Both the loss of expression and overexpression could be negative prognostic factors. Nectin-4 is the best characterized and the most consistently overexpressed in various tumors, which generally correlates with a worse prognosis. New treatments based on targeting nectin-4 are currently being developed. Enfortumab vedotin is a potent antibody-drug conjugate approved for use in therapy against urothelial carcinoma. Few reports focus on hepatocellular carcinoma, which leaves room for further studies comparing the utility of nectins with commonly used markers.
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Affiliation(s)
- Jakub Klekowski
- Department of Nursing and Obstetrics, Division of Anesthesiological and Surgical Nursing, Faculty of Health Science, Wroclaw Medical University, 50-367 Wroclaw, Poland;
- Department of Surgery, 4th Military Teaching Hospital, 50-981 Wroclaw, Poland;
| | - Dorota Zielińska
- Department of Surgery, 4th Military Teaching Hospital, 50-981 Wroclaw, Poland;
| | - Adriana Hofman
- Student Research Club No 180, Faculty of Medicine, Wroclaw Medical University, 50-367 Wroclaw, Poland; (A.H.); (N.Z.)
| | - Natalia Zajdel
- Student Research Club No 180, Faculty of Medicine, Wroclaw Medical University, 50-367 Wroclaw, Poland; (A.H.); (N.Z.)
| | - Paweł Gajdzis
- Department of Clinical and Experimental Pathology, Faculty of Medicine, Wroclaw Medical University, 50-367 Wroclaw, Poland;
- Department of Pathomorphology, 4th Military Teaching Hospital, 50-981 Wroclaw, Poland
| | - Mariusz Chabowski
- Department of Nursing and Obstetrics, Division of Anesthesiological and Surgical Nursing, Faculty of Health Science, Wroclaw Medical University, 50-367 Wroclaw, Poland;
- Department of Surgery, 4th Military Teaching Hospital, 50-981 Wroclaw, Poland;
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Duan X, Du H, Yuan M, Liu L, Liu R, Shi J. Bioinformatics analysis of necroptosis‑related lncRNAs and immune infiltration, and prediction of the prognosis of patients with esophageal carcinoma. Exp Ther Med 2023; 26:331. [PMID: 37346407 PMCID: PMC10280318 DOI: 10.3892/etm.2023.12030] [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: 11/21/2022] [Accepted: 04/21/2023] [Indexed: 06/23/2023] Open
Abstract
Esophageal carcinoma (ESCA) is one of the most common malignancies in the world, and has high morbidity and mortality rates. Necrosis and long noncoding RNAs (lncRNAs) are involved in the progression of ESCA; however, the specific mechanism has not been clarified. The aim of the present study was to investigate the role of necrosis-related lncRNAs (nrlncRNAs) in patients with ESCA by bioinformatics analysis, and to establish a nrlncRNA model to predict ESCA immune infiltration and prognosis. To form synthetic matrices, ESCA transcriptome data and related information were obtained from The Cancer Genome Atlas. A nrlncRNA model was established by coexpression, univariate Cox (Uni-Cox), and least absolute shrinkage and selection operator analyses. The predictive ability of this model was evaluated by Kaplan-Meier, receiver operating characteristic (ROC) curve, Uni-Cox, multivariate Cox regression, nomogram and calibration curve analyses. A model containing eight nrlncRNAs was generated. The areas under the ROC curves for 1-, 3- and 5-year overall survival were 0.746, 0.671 and 0.812, respectively. A high-risk score according to this model could be used as an indicator for systemic therapy use, since the half-maximum inhibitory concentration values varied significantly between the high-risk and low-risk groups. Based on the expression of eight prognosis-related nrlncRNAs, the patients with ESCA were regrouped using the 'ConsensusClusterPlus' package to explore potential molecular subgroups responding to immunotherapy. The patients with ESCA were divided into three clusters based on the eight nrlncRNAs that constituted the risk model: The most low-risk group patients were classified into cluster 1, and the high-risk group patients were mainly concentrated in clusters 2 and 3. Survival analysis showed that Cluster 1 had a better survival than the other groups (P=0.016). This classification system could contribute to precision treatment. Furthermore, two nrlncRNAs (LINC02811 and LINC00299) were assessed in the esophageal epithelial cell line HET-1A, and in the human esophageal cancer cell lines KYSE150 and TE1. There were significant differences in the expression levels of these lncRNAs between tumor and normal cells. In conclusion, the present study suggested that nrlncRNA models may predict the prognosis of patients with ESCA, and provide guidance for immunotherapy and chemotherapy decision making. Furthermore, the present study provided strategies to promote the development of individualized and precise treatment for patients with ESCA.
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Affiliation(s)
- Xiaoyang Duan
- Department of Medical Oncology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, P.R. China
| | - Huazhen Du
- Department of Emergency, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, P.R. China
| | - Meng Yuan
- Department of Internal Medicine, University of Occupational and Environmental Health, Kitakyushu, Fukuoka 804-8550, Japan
| | - Lie Liu
- Graduate School, Hebei Medical University, Shijiazhuang, Hebei 050017, P.R. China
| | - Rongfeng Liu
- Department of Medical Oncology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, P.R. China
| | - Jian Shi
- Department of Medical Oncology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, P.R. China
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Elzallat M, Hassan M, Elkramani N, Aboushousha T, AbdelLatif A, Helal N, Abu-Taleb H, El-Ahwany E. Nanoconjugated long non-coding RNA MEG3 as a new therapeutic approach for Hepatocellular carcinoma. Heliyon 2023; 9:e15288. [PMID: 37101621 PMCID: PMC10123146 DOI: 10.1016/j.heliyon.2023.e15288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 03/28/2023] [Accepted: 03/31/2023] [Indexed: 04/09/2023] Open
Abstract
Background Hepatocellular carcinoma (HCC) is an aggressive human cancer with a poor prognosis. Long non-coding RNAs (lncRNA) have multiple functions: epigenomic regulation, gene transcription, protein-coding gene translation, and genome defense. The involvement of lncRNAs in therapy offers a vast step in cancer treatment. Objective In the current study, a novel therapeutic regimen using polymer nanoparticle-mediated delivery of lncRNA was designed to control the progression of hepatocarcinogenesis. Methods One hundred mice were divided into 5 groups. The first group served as a normal-control group and was injected with saline, whereas the pathological-control group (the second group) was injected with N-Nitrosodiethylamine (DEN) weekly for 16 weeks. Group 3, Group 4, and Group 5 were injected intrahepatically with polymer nanoparticles (NPs) alone, lncRNA MEG3 alone, and conjugated NPs, respectively, once/week for four weeks starting on the 12th week after DEN injection. After 16 weeks, animals were euthanized, and liver specimens and blood samples were collected for pathological, molecular, and biochemical assessment. Results Compared to the pathological-control group, nanoconjugates lncRNA MEG3 demonstrated a significant improvement in histopathology and tumour-associated biomarkers. Furthermore, the expression of the SENP1 and PCNA was downregulated. Conclusion MEG3 conjugated nanoparticles can be considered a novel therapeutic regimen for HCC.
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Establishment and Analysis of a Prognostic Model of Autophagy-Related lncRNAs in ESCA. BIOMED RESEARCH INTERNATIONAL 2022; 2022:9265088. [PMID: 35928921 PMCID: PMC9345713 DOI: 10.1155/2022/9265088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 07/07/2022] [Indexed: 12/05/2022]
Abstract
Esophageal cancer (ESCA) is a malignant tumor of the upper gastrointestinal tract, with a high mortality rate and poor prognosis. Long noncoding RNAs (lncRNAs) play a role in the malignant progression of tumors by regulating autophagy. This study is aimed at establishing a prognostic model of autophagy-related lncRNAs in ESCA and provide a theoretical basis to determine potential therapeutic targets for ESCA. The transcriptome expression profiles were downloaded from The Cancer Genome Atlas (TCGA). We identified autophagy-related mRNAs and lncRNAs in ESCA using differential expression analysis and the Human Autophagy Database (HADb). Four differentially expressed autophagy-related lncRNAs with a prognostic value were identified using Cox regression and survival analyses. Furthermore, the combination of the selected lncRNAs was able to predict the prognosis of patients with ESCA more accurately than any of the four lncRNAs individually. Finally, we constructed a coexpression network of autophagy-related mRNAs and lncRNAs. This study showed that autophagy-related lncRNAs play an important role in the occurrence and development of ESCA and could become a new target for the diagnosis and treatment of this disease.
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10
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An L, Huang J, Ge S, Zhang X, Wang J. lncRNA AGAP2-AS1 Facilitates Tumorigenesis and Ferroptosis Resistance through SLC7A11 by IGF2BP2 Pathway in Melanoma. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2022; 2022:1972516. [PMID: 35707044 PMCID: PMC9192260 DOI: 10.1155/2022/1972516] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 04/28/2022] [Accepted: 05/05/2022] [Indexed: 12/12/2022]
Abstract
Long noncoding RNAs (lncRNAs) stand as indispensable regulators of initiation and development in melanoma (melanoma). However, the action molecular mechanisms linked to melanoma remain unclear. In the current study, the findings revealed that AGAP2-AS1 was considerably greater in melanoma than in healthy tissues and that the level of AGAP2-AS1 in cancer tissue was significantly linked to the cancerous TNM stage of patients. Individuals with high AGAP2-AS1 had a considerably shorter survival duration than patients with low AGAP2-AS1, regardless of progression-free survival or overall survival. Functionally, downregulating the expression of AGAP2-AS1 can inhibit the growth of melanocytes. Compared with the control group, AGAP2-AS1 knockdown increased Erastin-mediated iron death in melanoma cells. However, iron death inhibitor FERSINT-1 restored this effect, while Erastin induced melanoma cell death. Besides, intracellular iron and Fe2+ levels increased after AGAP2-AS1 knockdown in melanoma cells treated with Erastin compared with the si-NC group. In addition, AGAP2-AS1 silencing resulted in a significant decrease in glutathione (GSH) content in Erastin-treated melanoma cells. The mechanistic results suggest AGAP2-AS1 increases SLC7A11 mRNA stability through the IGF2BP2 pathway. In this investigation, we discovered new activities for AGAP2-AS1 and firstly discovered its mechanistic basis in ferroptosis and melanoma formation that might help in the search for potential therapy options in melanoma.
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Affiliation(s)
- Lifeng An
- Jiamusi College, Heilongjiang University of Chinese Medicine, 53 Guanghua Street, Qianjin District, Jiamusi, 154007 Heilongjiang Province, China
| | - Jingwen Huang
- Jiamusi College, Heilongjiang University of Chinese Medicine, 53 Guanghua Street, Qianjin District, Jiamusi, 154007 Heilongjiang Province, China
| | - Shihui Ge
- Graduate School, Heilongjiang University of Chinese Medicine, 24 Heping Road, Xiangfang District, Harbin, 150040 Heilongjiang Province, China
| | - Xin Zhang
- Graduate School, Heilongjiang University of Chinese Medicine, 24 Heping Road, Xiangfang District, Harbin, 150040 Heilongjiang Province, China
| | - Jing Wang
- Affiliated Second Hospital, Heilongjiang University of Chinese Medicine, 411 Gogoli Street, Nangang District, Harbin 150001 Heilongjiang Province, China
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11
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Yang Q, Al-Hendy A. The Regulatory Functions and the Mechanisms of Long Non-Coding RNAs in Cervical Cancer. Cells 2022; 11:cells11071149. [PMID: 35406713 PMCID: PMC8998012 DOI: 10.3390/cells11071149] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 03/25/2022] [Accepted: 03/27/2022] [Indexed: 12/11/2022] Open
Abstract
Cervical cancer is one of the leading causes of death in gynecology cancer worldwide. High-risk human papillomaviruses (HPVs) are the major etiological agents for cervical cancer. Still, other factors also contribute to cervical cancer development because these cancers commonly arise decades after initial exposure to HPV. So far, the molecular mechanisms underlying the pathogenesis of cervical cancer are still quite limited, and a knowledge gap needs to be filled to help develop novel strategies that will ultimately facilitate the development of therapies and improve cervical cancer patient outcomes. Long non-coding RNAs (lncRNAs) have been increasingly shown to be involved in gene regulation, and the relevant role of lncRNAs in cervical cancer has recently been investigated. In this review, we summarize the recent progress in ascertaining the biological functions of lncRNAs in cervical cancer from the perspective of cervical cancer proliferation, invasion, and metastasis. In addition, we provide the current state of knowledge by discussing the molecular mechanisms underlying the regulation and emerging role of lncRNAs in the pathogenesis of cervical cancer. Comprehensive and deeper insights into lncRNA-mediated alterations and interactions in cellular events will help develop novel strategies to treat patients with cervical cancer.
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