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Cheng L, Li S, Jiang D, Zhang J. DSCAM-AS1 promotes the development of prostate cancer. Discov Oncol 2024; 15:113. [PMID: 38605206 PMCID: PMC11009176 DOI: 10.1007/s12672-024-00931-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 03/11/2024] [Indexed: 04/13/2024] Open
Abstract
PURPOSE The purpose of this study was to investigate the role of lncRNA DSCAM-AS1 in prostate cancer to find new therapeutic targets and promote the research progress of prostate cancer. METHODS RT-qPCR was used to detect DSCAM-AS1 expression in prostate cancer tissues, normal tissues, human normal prostate epithelial cells (RWPE), and four prostate cancer cell lines. The clinical and prognostic role of DSCAM-AS1 was evaluated by the Kaplan-Meier curve and chi-square test. Secondly, a dual luciferase reporter gene assay was used to study the regulatory mechanism between miR-338-3p and DSCAM-AS1. Finally, the roles of DSCAM-AS1 and miR-338-3p in prostate cancer cell proliferation and metastasis were explored by CCK-8 and Transwell assays. RESULTS It was found that DSCAM-AS1 upregulation could serve as a warning of deterioration and poor prognosis in prostate cancer patients, and that knockdown of DSCAM-AS1 expression inhibited the progression of prostate cancer cells. In addition, miR-338-3p, a target of DSCAM-AS1, was found to be down-regulated in prostate cancer cells and miR-338-3p knockdown could reverse the inhibitory effect of DSCAM-AS1 silencing on prostate cancer. CONCLUSION DSCAM-AS1 is up-regulated in prostate cancer and regulates the progression of prostate cancer cells by targeting miR-338-3p.
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Affiliation(s)
- Lin Cheng
- Department of Urology Surgery, Shandong Provincial Third Hospital, No. 12, Wuyingshan Middle Road, Tianqiao District, Jinan, 250031, Shandong, China
| | - Shuhui Li
- Department of Joint Surgery, Shandong Provincial Third Hospital, Jinan, 250031, Shandong, China
| | - Deqi Jiang
- Department of Urology Surgery, Shandong Provincial Third Hospital, No. 12, Wuyingshan Middle Road, Tianqiao District, Jinan, 250031, Shandong, China
| | - Jianchao Zhang
- Department of Urology Surgery, Shandong Provincial Third Hospital, No. 12, Wuyingshan Middle Road, Tianqiao District, Jinan, 250031, Shandong, China.
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Papathanasiou I, Balis C, Destounis D, Mourmoura E, Tsezou A. NEAT1-mediated miR-150-5p downregulation regulates b-catenin expression in OA chondrocytes. Funct Integr Genomics 2023; 23:246. [PMID: 37468759 DOI: 10.1007/s10142-023-01139-4] [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: 02/10/2023] [Revised: 06/14/2023] [Accepted: 06/15/2023] [Indexed: 07/21/2023]
Abstract
We investigated the role of miR-150-5p in osteoarthritic (OA) chondrocytes, as well as the possible regulatory role of long non-coding RNAs (lncRNAs) in miR-150-5p expression. TargetScan, StarBase, DIANA-LncBase, and Open Targets databases were used to predict miR-150-5p target genes, lncRNAs/miR-150-5p interactions, and OA-related genes. Protein-protein interaction (PPI) network was constructed using the Search Tool for the Retrieval of Interacting Genes/Proteins (STRING). Gene ontology (GO) and pathway analysis were performed using Enrichr database. A publicly available RNA-seq dataset was retrieved to identify differentially expressed lncRNAs in damaged vs intact cartilage. We re-analyzed the retrieved RNA-seq data and revealed 177 differentially expressed lncRNAs in damage vs intact cartilage, including Nuclear Paraspeckle Assembly Transcript 1(NEAT1). MiR-150-5p, NEAT1, b-catenin, matrix metallopeptidase 13 (MMP-13), and ADAM metallopeptidase with thrombospondin type 1 motif 5 (ADAMTS-5) expressions were assessed by reverse transcription-quantitative PCR (RT-qPCR) and western blot assay. Knockout and transfection experiments were conducted to investigate the role of NEAT1/miR-150-5p/b-catenin in cartilage degradation. Bioinformatics analysis revealed that b-catenin was an OA-related miR-150-5p target. MiR-150-5p overexpression in OA chondrocytes resulted in decreased expression of b-catenin, as well as MMP-13 and ADAMTS-5, both being Wnt/b-catenin downstream target genes. NEAT1/miR-150-5p interaction was predicted by bioinformatics analysis, while NEAT1 knockout led to increased expression of miR-150-5p in OA chondrocytes. Moreover, inhibition of miR-150-5p reversed the repressive effects of NEAT1 silencing in b-catenin expression in OA chondrocytes. Our results support a possible catabolic role of NEAT1/miR-150-5p interaction in OA progression by regulating b-catenin expression.
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Affiliation(s)
- Ioanna Papathanasiou
- Faculty of Medicine, Laboratory of Cytogenetics and Molecular Genetics, University of Thessaly, Biopolis, 41500, Larissa, Greece
- Department of Biology, Faculty of Medicine, University of Thessaly, Larissa, Greece
| | - Charalampos Balis
- Faculty of Medicine, Laboratory of Cytogenetics and Molecular Genetics, University of Thessaly, Biopolis, 41500, Larissa, Greece
| | - Dimitrios Destounis
- Faculty of Medicine, Laboratory of Cytogenetics and Molecular Genetics, University of Thessaly, Biopolis, 41500, Larissa, Greece
| | - Evanthia Mourmoura
- Faculty of Medicine, Laboratory of Cytogenetics and Molecular Genetics, University of Thessaly, Biopolis, 41500, Larissa, Greece
| | - Aspasia Tsezou
- Faculty of Medicine, Laboratory of Cytogenetics and Molecular Genetics, University of Thessaly, Biopolis, 41500, Larissa, Greece.
- Department of Biology, Faculty of Medicine, University of Thessaly, Larissa, Greece.
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R I A, Vatsyayan A, Damodaran D, Sivadas A, Van der Speeten K. Multi-omics Analysis Classifies Colorectal Cancer into Distinct Methylated Immunogenic and Angiogenic Subtypes Based on Anatomical Laterality. Indian J Surg Oncol 2023; 14:209-219. [PMID: 37359923 PMCID: PMC10284779 DOI: 10.1007/s13193-023-01760-6] [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: 09/19/2022] [Accepted: 04/25/2023] [Indexed: 06/28/2023] Open
Abstract
We employed supervised machine learning algorithms to a cohort of colorectal cancer patients from the NCI to differentiate and classify the heterogenous disease based on anatomical laterality and multi-omics stratification, in a first of its kind. Multi-omics integrative analysis shows distinct clustering of left and right colorectal cancer with disentangled representation of methylome and delineation of transcriptome and genome. We present novel multi-omics findings consistent with augmented hypermethylation of genes in right CRC, epigenomic biomarkers on the right in conjunction with immune-mediated pathway signatures, and lymphocytic invasion which unlocks unique therapeutic avenues. Contrarily, left CRC multi-omics signature is found to be marked by angiogenesis, cadherins, and epithelial-mesenchymal transition (EMT). An integrated multi-omics molecular signature of RNF217-AS1, hsa-miR-10b, and panel of FBX02, FBX06, FBX044, MAD2L2, and MIIP copy number altered genes have been found by the study. Overall survival analysis reveals genomic biomarkers ABCA13 and TTN in 852 LCRC cases, and SOX11 in 170 RCRC cases that predicts a significant survival benefit. Our study exemplifies the translational competence and robustness of machine learning in effective translational bridging of research and clinic. Supplementary Information The online version contains supplementary material available at 10.1007/s13193-023-01760-6.
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Affiliation(s)
- Anu R I
- Department of Cancer Biology and Therapeutics, MVR Cancer Center and Research Institute, Calicut, Kerala India
- Department of Clinical Biochemistry, MVR Cancer Center and Research Institute, Calicut, Kerala India
| | - Aastha Vatsyayan
- CSIR Institute of Genomics and Integrative Biology (CSIR-IGIB), New Delhi, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Dileep Damodaran
- Department of Surgical Oncology, MVR Cancer Center and Research Institute, Calicut, Kerala India
| | - Ambily Sivadas
- Division of Nutrition, St. John’s Research Institute, Bangalore, India
| | - Kurt Van der Speeten
- Department of Surgical Oncology, Ziekenhuis Oost-Limburg, Genk, Belgium
- Faculty of Medicine and Life Sciences, BIOMED Research Institute, University Hasselt, Hasselt, Belgium
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Arriaga-Canon C, Contreras-Espinosa L, Aguilar-Villanueva S, Bargalló-Rocha E, García-Gordillo JA, Cabrera-Galeana P, Castro-Hernández C, Jiménez-Trejo F, Herrera LA. The Clinical Utility of lncRNAs and Their Application as Molecular Biomarkers in Breast Cancer. Int J Mol Sci 2023; 24:ijms24087426. [PMID: 37108589 PMCID: PMC10138835 DOI: 10.3390/ijms24087426] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 04/04/2023] [Accepted: 04/10/2023] [Indexed: 04/29/2023] Open
Abstract
Given their tumor-specific and stage-specific gene expression, long non-coding RNAs (lncRNAs) have demonstrated to be potential molecular biomarkers for diagnosis, prognosis, and treatment response. Particularly, the lncRNAs DSCAM-AS1 and GATA3-AS1 serve as examples of this because of their high subtype-specific expression profile in luminal B-like breast cancer. This makes them candidates to use as molecular biomarkers in clinical practice. However, lncRNA studies in breast cancer are limited in sample size and are restricted to the determination of their biological function, which represents an obstacle for its inclusion as molecular biomarkers of clinical utility. Nevertheless, due to their expression specificity among diseases, such as cancer, and their stability in body fluids, lncRNAs are promising molecular biomarkers that could improve the reliability, sensitivity, and specificity of molecular techniques used in clinical diagnosis. The development of lncRNA-based diagnostics and lncRNA-based therapeutics will be useful in routine medical practice to improve patient clinical management and quality of life.
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Affiliation(s)
- Cristian Arriaga-Canon
- Unidad de Investigación Biomédica en Cáncer, Instituto Nacional de Cancerología-Instituto de Investigaciones Biomédicas, UNAM, Avenida San Fernando No. 22 Col. Sección XVI, Tlalpan, Mexico City C.P. 14080, Mexico
| | - Laura Contreras-Espinosa
- Unidad de Investigación Biomédica en Cáncer, Instituto Nacional de Cancerología-Instituto de Investigaciones Biomédicas, UNAM, Avenida San Fernando No. 22 Col. Sección XVI, Tlalpan, Mexico City C.P. 14080, Mexico
- Posgrado en Ciencias Biológicas, Unidad de Posgrado, Edificio D, 1° Piso, Circuito de Posgrados, Ciudad Universitaria, Coyoacán, Mexico City C.P. 04510, Mexico
| | - Sergio Aguilar-Villanueva
- Departamento de Tumores Mamarios, Instituto Nacional de Cancerología, Tlalpan, Mexico City C.P. 14080, Mexico
| | - Enrique Bargalló-Rocha
- Departamento de Tumores Mamarios, Instituto Nacional de Cancerología, Tlalpan, Mexico City C.P. 14080, Mexico
| | - José Antonio García-Gordillo
- Departamento de Oncología Médica de Mama, Instituto Nacional de Cancerología, Tlalpan, Mexico City C.P. 14080, Mexico
| | - Paula Cabrera-Galeana
- Departamento de Oncología Médica de Mama, Instituto Nacional de Cancerología, Tlalpan, Mexico City C.P. 14080, Mexico
| | - Clementina Castro-Hernández
- Unidad de Investigación Biomédica en Cáncer, Instituto Nacional de Cancerología-Instituto de Investigaciones Biomédicas, UNAM, Avenida San Fernando No. 22 Col. Sección XVI, Tlalpan, Mexico City C.P. 14080, Mexico
| | | | - L A Herrera
- Unidad de Investigación Biomédica en Cáncer, Instituto Nacional de Cancerología-Instituto de Investigaciones Biomédicas, UNAM, Avenida San Fernando No. 22 Col. Sección XVI, Tlalpan, Mexico City C.P. 14080, Mexico
- Tecnológico de Monterrey, Escuela de Medicina y Ciencias de la Salud, Monterrey C.P. 64710, Mexico
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DSCAM-AS1 Long Non-Coding RNA Exerts Oncogenic Functions in Endometrial Adenocarcinoma via Activation of a Tumor-Promoting Transcriptome Profile. Biomedicines 2022; 10:biomedicines10071727. [PMID: 35885035 PMCID: PMC9313190 DOI: 10.3390/biomedicines10071727] [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: 05/19/2022] [Revised: 07/12/2022] [Accepted: 07/13/2022] [Indexed: 11/16/2022] Open
Abstract
Accumulating evidence suggests that lncRNA DSCAM-AS1 acts tumor-promoting in various cancer entities. In breast cancer, DSCAM-AS1 was shown to be the lncRNA being most responsive to induction by estrogen receptor α (ERα). In this study, we examined the function of DSCAM-AS1 in endometrial adenocarcinoma using in silico and different in vitro approaches. Initial analysis of open-source data revealed DSCAM-AS1 overexpression in endometrial cancer (EC) (p < 0.01) and a significant association with shorter overall survival of EC patients (HR = 1.78, p < 0.01). In EC, DSCAM-AS1 was associated with endometrial tumor promotor gene PRL and with expression of ERα and its target genes TFF1 and PGR. Silencing of this lncRNA by RNAi in two EC cell lines was more efficient in ERα-negative HEC-1B cells and reduced their growth and the expression of proliferation activators like NOTCH1, PTK2 and EGR1. DSCAM-AS1 knockdown triggered an anti-tumoral transcriptome response as revealed by Affymetrix microarray analysis, emerging from down-regulation of tumor-promoting genes and induction of tumor-suppressive networks. Finally, several genes regulated upon DSCAM-AS1 silencing in vitro were found to be inversely correlated with this lncRNA in EC tissues. This study clearly suggests an oncogenic function of DSCAM-AS1 in endometrial adenocarcinoma via activation of a tumor-promoting transcriptome profile.
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Ghafouri-Fard S, Khoshbakht T, Hussen BM, Taheri M, Samadian M. A review on the role of MCM3AP-AS1 in the carcinogenesis and tumor progression. Cancer Cell Int 2022; 22:225. [PMID: 35790972 PMCID: PMC9258118 DOI: 10.1186/s12935-022-02644-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 06/29/2022] [Indexed: 11/29/2022] Open
Abstract
Minichromosome Maintenance Complex Component 3 Associated Protein Antisense 1 (MCM3AP-AS1) is an RNA gene located on 21q22.3. The sense transcript from this locus has dual roles in the pathogenesis of solid tumors and hematological malignancies. MCM3AP-AS1 has been shown to sequester miR-194-5p, miR-876-5p, miR-543-3p, miR-28-5p, miR-93, miR-545, miR-599, miR‐193a‐5p, miR-363-5p, miR-204-5p, miR-211-5p, miR-15a, miR-708-5p, miR-138, miR-138-5p, miR-34a, miR-211, miR‐340‐5p, miR-148a, miR-195-5p and miR-126. Some cancer-related signaling pathway, namely PTEN/AKT, PI3K/AKT and ERK1/2 are influenced by this lncRNA. Cell line studies, animal studies and clinical studies have consistently reported oncogenic role of MCM3AP-AS1 in different tissues except for cervical cancer in which this lncRNA has tumor suppressor role. In the current manuscript, we collected evidence from these three sources of evidence to review the impact of MCM3AP-AS1 in the carcinogenesis.
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Affiliation(s)
- Soudeh Ghafouri-Fard
- Department of Medical Genetics, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Tayyebeh Khoshbakht
- Phytochemistry Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Bashdar Mahmud Hussen
- Department of Pharmacognosy, College of Pharmacy, Hawler Medical University, Kurdistan Region, Erbil, Iraq.,Center of Research and Strategic Studies, Lebanese French University, Kurdistan Region, Erbil, Iraq
| | - Mohammad Taheri
- Institute of Human Genetics, Jena University Hospital, Jena, Germany. .,Urology and Nephrology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Mohammad Samadian
- Skull Base Research Center, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Liu H, Zong C, Sun J, Li H, Qin G, Wang X, Zhu J, Yang Y, Xue Q, Liu X. Bioinformatics analysis of lncRNAs in the occurrence and development of osteosarcoma. Transl Pediatr 2022; 11:1182-1198. [PMID: 35958002 PMCID: PMC9360822 DOI: 10.21037/tp-22-253] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 07/04/2022] [Indexed: 12/01/2022] Open
Abstract
BACKGROUND Osteosarcoma (OS) is a disease with high mortality in children and adolescents, and metastasis is one of its important clinical features. However, the molecular mechanism of OS occurrence is not completely clear. Thus, we screened potential biomarkers of OS and analyze their prognostic value. METHODS The Cancer Genome Atlas (TCGA) datasets were used to analyze the differential lncRNAs in patients with OS of different immune score and the lncRNAs expressed by immune cells. Cox regression was used to develop the prognosis prediction model and specify the prognosis outcomes. Risk-proportional regression model was constructed, and the samples were divided into high and low groups based on the risk scores for the survival analysis. The areas under the receiver operating characteristic (ROC) curve were calculated and the risk-score model was verified. Finally, using 4 gene sets (comprising chemokines, immune checkpoint blockades, immune activity-related genes, and immune cells), and 4 analysis tools (CIBERSORT, TIMER, XCELL and MCP) to evaluated tumor immune infiltration. RESULTS Twenty-nine long non-coding ribonucleic acids (lncRNAs) were obtained from the intersection of the screened lncRNAs. Caspase recruitment domain-containing protein 8-antisense RNA 1 (CARD8-AS1), lncRNA five prime to Xist (FTX), KAT8 regulatory NSL complex unit 1-antisense RNA 1 (KANSL1-AS1), Neuroplastin Intronic Transcript 1 (NPTN-IT1), oligodendrocyte maturation-associated long intervening non-coding RNA (OLMALINC) and RPARP Antisense RNA 1 (RPARP-AS1) were found to be correlated with survival. Univariate and multivariate regression analysis showed risk score [HR (hazard ratio) 3.5, P value 0.0043; HR 3.7, P value 0.0033] and metastasis (HR 4.7, P value 6.60E-05; HR 4.8, P value 8.36E-05) were the key factors of patients with OS. The areas under curves (AUCs) of the 1-, 3-, and 5-year ROC curves of the prognostic model were 0.715, 0.729, and 0.771. The low-risk patients tended to have a high abundance of immune cells. CONCLUSIONS This study showed that a risk score based on 6 lncRNAs has potential value in the prognosis of OS, and patients with low-risk scores have high immune cell infiltration and good prognosis. This study may enrich understandings of underlying mechanisms related to the occurrence and development of OS.
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Affiliation(s)
- Hua Liu
- Department of Radiation Oncology, Affiliated Hospital of Nantong University, Nantong, China.,Department of Orthopedics, Haian Hospital of Traditional Chinese Medicine, Haian, China
| | - Chenyu Zong
- Department of Orthopedics, Affiliated Hospital of Nantong University, Nantong, China
| | - Jiacheng Sun
- Xinglin College, Nantong University, Nantong, China
| | - Haiyang Li
- Department of Oncology, Binhai County People's Hospital, Yancheng, China
| | - Guangzhen Qin
- Department of Orthopedics, Haian Hospital of Traditional Chinese Medicine, Haian, China
| | - Xiaojian Wang
- Department of Orthopedics, Haian Hospital of Traditional Chinese Medicine, Haian, China
| | - Jianwei Zhu
- Department of Orthopedics, Affiliated Hospital of Nantong University, Nantong, China
| | - Yang Yang
- Department of Trauma Center, Affiliated Hospital of Nantong University, Nantong, China
| | - Qiang Xue
- Department of Radiation Oncology, Affiliated Hospital of Nantong University, Nantong, China
| | - Xianchen Liu
- Department of Radiation Oncology, Affiliated Hospital of Nantong University, Nantong, China
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Ghafouri-Fard S, Khoshbakht T, Hussen BM, Taheri M, Akbari Dilmaghani N. A review on the role of PTENP1 in human disorders with an especial focus on tumor suppressor role of this lncRNA. Cancer Cell Int 2022; 22:207. [PMID: 35655204 PMCID: PMC9161594 DOI: 10.1186/s12935-022-02625-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 03/24/2022] [Indexed: 11/16/2022] Open
Abstract
PTENP1 is a long non-coding RNA which has been regarded as a pseudogene of the PTEN tumor suppressor gene. However, it has been shown to be a biologically active transcript that can function as a competing endogenous RNA and enhance expression of PTEN protein. This lncRNA has two transcripts, namely PTENP1-202 and PTENP1-202 with sizes of 3996 and 1215 bps, respectively. PTENP1 acts as a sponge for some PETN-targeting miRNAs, such as miR-17, miR-20a, miR-19b, miR-106b, miR-200c, miR-193a-3p, miR-499-5p and miR-214. Besides, it can affect miR-20a/PDCD4, miR-27a-3p/EGR1, miR-17‐5p/SOCS6 and miR-19b/TSC1 axes. This long non-coding RNA participates in the pathoetiology of several types of cancers as well as non-malignant conditions such as alcohol-induced osteopenia, insulin resistance, osteoporosis, sepsis-associated cardiac dysfunction and spinal cord injury. In the current review, we elucidate the role of PTENP1 in human disorders, particularly malignant conditions based on evidence acquired from cell line assays, animal studies and investigations on human samples.
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Huang X, Wang Z, Hou S, Yue C, Li Z, Hu W, Lu H. Long non-coding RNA DSCAM-AS1 promotes pancreatic cancer progression via regulating the miR-136-5p/PBX3 axis. Bioengineered 2022; 13:4153-4165. [PMID: 35142595 PMCID: PMC8973590 DOI: 10.1080/21655979.2021.2016326] [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: 02/08/2023] Open
Abstract
LncRNA down syndrome cell adhesion molecule antisense 1 (DSCAM-AS1) plays an important role in tumor progression, but its function in pancreatic cancer is unknown. DSCAM-AS1 level was evaluated by in situ hybridization (ISH) assay and qRT-PCR. DSCAM-AS1 was knocked down in pancreatic cancer cells, and its impacts on cell proliferation, invasion, and migration were detected. The binding relationship among DSCAM-AS1, miR-136-5p, and pre-B-cell leukemia homeobox 3 (PBX3) was investigated by bioinformatic analysis and luciferase reporter assay. An in vivo animal model was constructed to determine the role of DSCAM-AS1 in tumor growth. Our results showed that DSCAM-AS1 was elevated in tumor tissues of pancreatic cancer patients and cell lines. DSCAM-AS1 knockdown efficiently inhibited PANC-1 cell proliferation, migration, and invasion and suppressed tumor growth. DSCAM-AS1 could promote PBX3 expression by sponging miR-136-5p, and its function in pancreatic cancer was partially mediated by the miR-136-5p/PBX3 axis. Overall, DSCAM-AS1 knockdown inhibits pancreatic cancer progression by modulating the miR-136-5p/PBX3 axis.
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Affiliation(s)
- Xing Huang
- Department of Pancreatic Surgery, West China Hospital, Sichuan University, Chengdu City, Sichuan, China
| | - Zihe Wang
- Department of Pancreatic Surgery, West China Hospital, Sichuan University, Chengdu City, Sichuan, China
| | - Shengzhong Hou
- Department of Pancreatic Surgery, West China Hospital, Sichuan University, Chengdu City, Sichuan, China
| | - Chao Yue
- Department of Pancreatic Surgery, West China Hospital, Sichuan University, Chengdu City, Sichuan, China
| | - ZhenLu Li
- Department of Pancreatic Surgery, West China Hospital, Sichuan University, Chengdu City, Sichuan, China
| | - Weiming Hu
- Department of Pancreatic Surgery, West China Hospital, Sichuan University, Chengdu City, Sichuan, China
| | - Huimin Lu
- Department of Pancreatic Surgery, West China Hospital, Sichuan University, Chengdu City, Sichuan, China
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Long Noncoding RNA Mediated Regulation in Human Embryogenesis, Pluripotency, and Reproduction. Stem Cells Int 2022; 2022:8051717. [PMID: 35103065 PMCID: PMC8800634 DOI: 10.1155/2022/8051717] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 12/27/2021] [Indexed: 12/12/2022] Open
Abstract
Long noncoding RNAs (lncRNAs), a class of noncoding RNAs with more than 200 bp in length, are produced by pervasive transcription in mammalian genomes and regulate gene expression through various action mechanisms. Accumulating data indicate that lncRNAs mediate essential biological functions in human development, including early embryogenesis, induction of pluripotency, and germ cell development. Comprehensive analysis of sequencing data highlights that lncRNAs are expressed in a stage-specific and human/primate-specific pattern during early human development. They contribute to cell fate determination through interacting with almost all classes of cellular biomolecules, including proteins, DNA, mRNAs, and microRNAs. Furthermore, the expression of a few of lncRNAs is highly associated with the pathogenesis and progression of many reproductive diseases, suggesting that they could serve as candidate biomarkers for diagnosis or novel targets for treatment. Here, we review research on lncRNAs and their roles in embryogenesis, pluripotency, and reproduction. We aim to identify the underlying molecular mechanisms essential for human development and provide novel insight into the causes and treatments of human reproductive diseases.
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