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Liu Y, Li J, Ding C, Tong H, Yan Y, Li S, Li S, Cao Y. Leu promotes C2C12 cell differentiation by regulating the GSK3β/β-catenin signaling pathway through facilitating the interaction between SESN2 and RPN2. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2024; 104:6696-6705. [PMID: 38551359 DOI: 10.1002/jsfa.13496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 03/02/2024] [Accepted: 03/29/2024] [Indexed: 04/25/2024]
Abstract
BACKGROUND Leucine (Leu) is an essential amino acid that facilitates skeletal muscle satellite cell differentiation, yet its mechanism remains underexplored. Sestrin2 (SESN2) serves as a Leu sensor, binding directly to Leu, while ribophorin II (RPN2) acts as a signaling factor in multiple pathways. This study aimed to elucidate Leu's impact on mouse C2C12 cell differentiation and skeletal muscle injury repair by modulating RPN2 expression through SESN2, offering a theoretical foundation for clinical skeletal muscle injury prevention and treatment. RESULTS Leu addition promoted C2C12 cell differentiation compared to the control, enhancing early differentiation via myogenic determinant (MYOD) up-regulation. Sequencing revealed SESN2 binding to and interacting with RPN2. RPN2 overexpression up-regulated MYOD, myogenin and myosin heavy chain 2, concurrently decreased p-GSK3β and increased nuclear β-catenin. Conversely, RPN2 knockdown yielded opposite results. Combining RPN2 knockdown with Leu rescued increased p-GSK3β and decreased nuclear β-catenin compared to Leu absence. Hematoxylin and eosin staining results showed that Leu addition accelerated mouse muscle damage repair, up-regulating Pax7, MYOD and RPN2 in the cytoplasm, and nuclear β-catenin, confirming that the role of Leu in muscle injury repair was consistent with the results for C2C12 cells. CONCLUSION Leu, bound with SESN2, up-regulated RPN2 expression, activated the GSK3β/β-catenin pathway, enhanced C2C12 differentiation and expedited skeletal muscle damage repair. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Yifan Liu
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Laboratory of Cell and Development, Department of Life Science, Northeast Agricultural University, Harbin, China
| | - Jinping Li
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Laboratory of Cell and Development, Department of Life Science, Northeast Agricultural University, Harbin, China
| | - Cong Ding
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Laboratory of Cell and Development, Department of Life Science, Northeast Agricultural University, Harbin, China
| | - Huili Tong
- Laboratory of Cell and Development, Department of Life Science, Northeast Agricultural University, Harbin, China
| | - Yunqin Yan
- Laboratory of Cell and Development, Department of Life Science, Northeast Agricultural University, Harbin, China
| | - Shuang Li
- Laboratory of Cell and Development, Department of Life Science, Northeast Agricultural University, Harbin, China
| | - Shufeng Li
- Laboratory of Cell and Development, Department of Life Science, Northeast Agricultural University, Harbin, China
| | - Yunkao Cao
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Laboratory of Cell and Development, Department of Life Science, Northeast Agricultural University, Harbin, China
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2
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Liu HZ, Song XQ, Zhang H. Sugar-coated bullets: Unveiling the enigmatic mystery 'sweet arsenal' in osteoarthritis. Heliyon 2024; 10:e27624. [PMID: 38496870 PMCID: PMC10944269 DOI: 10.1016/j.heliyon.2024.e27624] [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: 10/30/2023] [Revised: 03/01/2024] [Accepted: 03/04/2024] [Indexed: 03/19/2024] Open
Abstract
Glycosylation is a crucial post-translational modification process where sugar molecules (glycans) are covalently linked to proteins, lipids, or other biomolecules. In this highly regulated and complex process, a series of enzymes are involved in adding, modifying, or removing sugar residues. This process plays a pivotal role in various biological functions, influencing the structure, stability, and functionality of the modified molecules. Glycosylation is essential in numerous biological processes, including cell adhesion, signal transduction, immune response, and biomolecular recognition. Dysregulation of glycosylation is associated with various diseases. Glycation, a post-translational modification characterized by the non-enzymatic attachment of sugar molecules to proteins, has also emerged as a crucial factor in various diseases. This review comprehensively explores the multifaceted role of glycation in disease pathogenesis, with a specific focus on its implications in osteoarthritis (OA). Glycosylation and glycation alterations wield a profound influence on OA pathogenesis, intertwining with disease onset and progression. Diverse studies underscore the multifaceted role of aberrant glycosylation in OA, particularly emphasizing its intricate relationship with joint tissue degradation and inflammatory cascades. Distinct glycosylation patterns, including N-glycans and O-glycans, showcase correlations with inflammatory cytokines, matrix metalloproteinases, and cellular senescence pathways, amplifying the degenerative processes within cartilage. Furthermore, the impact of advanced glycation end-products (AGEs) formation in OA pathophysiology unveils critical insights into glycosylation-driven chondrocyte behavior and extracellular matrix remodeling. These findings illuminate potential therapeutic targets and diagnostic markers, signaling a promising avenue for targeted interventions in OA management. In this comprehensive review, we aim to thoroughly examine the significant impact of glycosylation or AGEs in OA and explore its varied effects on other related conditions, such as liver-related diseases, immune system disorders, and cancers, among others. By emphasizing glycosylation's role beyond OA and its implications in other diseases, we uncover insights that extend beyond the immediate focus on OA, potentially revealing novel perspectives for diagnosing and treating OA.
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Affiliation(s)
- Hong-zhi Liu
- Department of Orthopaedics, Wangjing Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Xin-qiu Song
- The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China
| | - Hongmei Zhang
- Department of Orthopaedics, Wangjing Hospital, China Academy of Chinese Medical Sciences, Beijing, China
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3
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Han Z, Wang Y, Han L, Yang C. RPN2 in cancer: An overview. Gene 2023; 857:147168. [PMID: 36621657 DOI: 10.1016/j.gene.2023.147168] [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: 08/24/2022] [Revised: 12/07/2022] [Accepted: 01/03/2023] [Indexed: 01/07/2023]
Abstract
Oncogenes together with tumor suppresser genes are confirmed to regulate tumor phenotype in human cancers. RPN2, widely verified as an oncogene, encodes a protein that is part of an N-oligosaccharyl transferase, and is observed to be aberrantly expressed in human malignancies. Accumulating evidence unveils the vital functions of RPN2, contributing to tumorigenicity, metastasis, progression, and multi-drug resistance. Furthermore, previous studies partly indicated that RPN2 was involved in tumor progression via contributing to N-glycosylation and regulating multiple signaling pathways. In addition, RPN2 was also confirmed as a downstream target involved in tumor progression. Moreover, with demonstrated prognosis value and therapeutic target, RPN2 was also determined as a promising biomarker for forecasting patients' prognostic and therapy efficacy. In the present review, we aimed to summarize the present studies of RPN2 in cancer, and enhance the understanding of RPN2's extensive functions and clinical significances.
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Affiliation(s)
- Zhengxuan Han
- Department of Gastrointestinal Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China; Hubei Key Laboratory of Tumour Biological Behaviours, Wuhan, China; Hubei Cancer Clinical Study Center, Wuhan, China; The Clinical Medical Research Center of Peritoneal Cancer of Wuhan, Wuhan, China
| | - You Wang
- Department of Stomatology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Lei Han
- Department of Gastrointestinal Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China; Hubei Key Laboratory of Tumour Biological Behaviours, Wuhan, China; Hubei Cancer Clinical Study Center, Wuhan, China; The Clinical Medical Research Center of Peritoneal Cancer of Wuhan, Wuhan, China
| | - Chaogang Yang
- Department of Gastrointestinal Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China; Hubei Key Laboratory of Tumour Biological Behaviours, Wuhan, China; Hubei Cancer Clinical Study Center, Wuhan, China; The Clinical Medical Research Center of Peritoneal Cancer of Wuhan, Wuhan, China.
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4
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Sun J, Wang J, Li M, Li S, Li H, Lu Y, Li F, Xin T, Jin F. circTOP2A functions as a ceRNA to promote glioma progression by upregulating RPN2. Cancer Sci 2022; 114:490-503. [PMID: 36227125 PMCID: PMC9899613 DOI: 10.1111/cas.15612] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 09/08/2022] [Accepted: 09/12/2022] [Indexed: 11/29/2022] Open
Abstract
Competing endogenous RNA (ceRNA)-mediated signaling pathway dysregulation provides great insight into comprehensively understanding the molecular mechanism and combined targeted therapy for glioblastoma. circRNA is characterized by high stability, tissue/developmental stage-specific expression and abundance in brain and plays significant roles in the initiation and progression of cancer. Our previous published data have demonstrated that RPN2 was significantly upregulated in glioma and promoted tumor progression via the activation of the Wnt/β-catenin pathway. Furthermore, we proved that miR-422a regulated the Wnt/β-catenin signaling pathway by directly targeting RPN2. In this study, based on the glioblastoma microarray profiles, we identified the upstream circTOP2A, which completely bound to miR-422a and was co-expressed with the RPN2. circTOP2A was significantly overexpressed in glioma and conferred a poor prognosis. circTOP2A could regulate RPN2 expression by sponging miR-422a, verified by western blot, dual-luciferase reporter gene assay, and RNA pull-down assay. Functional assays including CCK8, transwell and FITC-annexin V were performed to explore the RPN2-mediated role of the circTOP2A effect on the glioma malignant phenotype. Additionally, TOP/FOP and immunofluorescence analysis were used to confirm that sh-circTOP2A could suppress the Wnt/β-catenin pathway partly through RPN2. Finally, a tumor xenograft model was applied to validate the biological function of circTOP2A in vivo. Taken together, our findings reveal the critical role of circTOP2A in promoting glioma proliferation and invasion via a ceRNA mechanism and provide an exploitable biomarker and therapeutic target for glioma patients.
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Affiliation(s)
- Jikui Sun
- Department of NeurosurgeryAffiliated Hospital of Jining Medical University, & Shandong Provincial Key Laboratory of Stem Cells and Neuro‐oncologyJiningChina,Shandong University of Traditional Chinese MedicineJinanChina,Shandong Medicine and Health Key Laboratory of NeurosurgeryThe First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan HospitalJinanChina
| | - Jinhuan Wang
- Tianjin Cerebral Vascular and Neural Degenerative Disease Key Laboratory, Department of NeurosurgeryTianjin Neurosurgical Institute, Tianjin Huanhu HospitalTianjinChina
| | - Meng Li
- Shandong Medicine and Health Key Laboratory of NeurosurgeryThe First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan HospitalJinanChina
| | - Shengjie Li
- Shandong Medicine and Health Key Laboratory of NeurosurgeryThe First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan HospitalJinanChina
| | - Hanyun Li
- Cheeloo College of MedicineShandong UniversityJinanChina
| | - Yan Lu
- Department of NeurosurgeryAffiliated Hospital of Jining Medical University, & Shandong Provincial Key Laboratory of Stem Cells and Neuro‐oncologyJiningChina,Medical Research CenterAffiliated Hospital of Jining Medical UniversityJiningChina
| | - Feng Li
- Shandong Medicine and Health Key Laboratory of NeurosurgeryThe First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan HospitalJinanChina
| | - Tao Xin
- Shandong University of Traditional Chinese MedicineJinanChina,Shandong Medicine and Health Key Laboratory of NeurosurgeryThe First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan HospitalJinanChina
| | - Feng Jin
- Department of NeurosurgeryAffiliated Hospital of Jining Medical University, & Shandong Provincial Key Laboratory of Stem Cells and Neuro‐oncologyJiningChina
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RPNs Levels Are Prognostic and Diagnostic Markers for Hepatocellular Carcinoma. JOURNAL OF ONCOLOGY 2022; 2022:7270541. [PMID: 36072976 PMCID: PMC9444382 DOI: 10.1155/2022/7270541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 05/04/2022] [Accepted: 05/23/2022] [Indexed: 11/17/2022]
Abstract
The ribophorin family (RPN) is an essential regulatory subunit of the proteasome. By influencing the ubiquitin-proteasome system activity, ribophorins (RPNs) are responsible for almost all physiology and pathology processes of mammalian cells. Nevertheless, little is known about the role of RPNs in HCC. In this work, we first evaluated the transcriptional levels and the prognostic and diagnostic value of RPNs based on the public database. Firstly, we found all RPNs were surprisingly consistently upregulated in HCC tissues. Moreover, the RPNs' expression pattern is correlated with HCC tumor grade. The TCGA HCC platforms' data indicated that RPN2, RPN3, RPN6, RPN9, RPN10, RPN11, and RPN12 have robust diagnosis values. Then, survival analysis revealed that the high expression of RPN1, RPN2, RPN4, RPN5, RPN6, RPN9, and RPN11 was correlated with unfavourable HCC overall survival. Then, genetic alteration, immune infiltration feature, gene-genes network, and functional enrichment for RPNs indicated that RPNs have many potential biosynthesis activities expert for UPS functions. Moreover, western blot and qRT-PCR results confirmed these results. The silencing of RPN6 and RPN9 significantly reduced HCC cells' proliferation, migration, and invasion ability in vitro. An in vivo tumor model further validated the oncogene effect of RPN6 on HCC cell growth. Moreover, RPN6 and RPN9 could promote cell migratory and invasive potential by affecting the epithelial-mesenchymal transition (EMT) process. In summary, this study suggests that the RPN family has the potential to be potential biomarkers and targets for HCC.
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Huang YC, Yuan TM, Liu BH, Liu KL, Wung CH, Chuang SM. Capsaicin Potentiates Anticancer Drug Efficacy Through Autophagy-Mediated Ribophorin II Downregulation and Necroptosis in Oral Squamous Cell Carcinoma Cells. Front Pharmacol 2021; 12:676813. [PMID: 34512323 PMCID: PMC8429935 DOI: 10.3389/fphar.2021.676813] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Accepted: 08/16/2021] [Indexed: 11/13/2022] Open
Abstract
The ability of capsaicin co-treatment to sensitize cancer cells to anticancer drugs has been widely documented, but the detailed underlying mechanisms remain unknown. In addition, the role of ribophorin II turnover on chemosensitization is still uncertain. Here, we investigated capsaicin-induced sensitization to chemotherapeutic agents in the human oral squamous carcinoma cell lines, HSC-3 and SAS. We found that capsaicin (200 μM) did not induce remarkable apoptotic cell death in these cell lines; instead, it significantly enhanced autophagy with a concomitant decrease of ribophorin II protein. This capsaicin-induced decrease in ribophorin II was intensified by the autophagy inducer, rapamycin, but attenuated by the autophagy inhibitors, ULK1 inhibitor and chloroquine, indicating that the autophagic process was responsible for the capsaicin-induced down-regulation of ribophorin II. Co-administration of capsaicin with conventional anticancer agents did, indeed, sensitize the cancer cells to these agents. In co-treated cells, the induction of apoptosis was significantly reduced and the levels of the necroptosis markers, phospho-MLKL and phospho-RIP3, were increased relative to the levels seen in capsaicin treatment alone. The levels of DNA damage response markers were also diminished by co-treatment. Collectively, our results reveal a novel mechanism by which capsaicin sensitizes oral cancer cells to anticancer drugs through the up-regulation of autophagy and down-regulation of ribophorin II, and further indicate that the induction of necroptosis is a critical factor in the capsaicin-mediated chemosensitization of oral squamous carcinoma cells to conventional anticancer drugs.
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Affiliation(s)
- Yi-Ching Huang
- Institute of Biomedical Sciences, National Chung Hsing University, Taichung, Taiwan
| | - Tien-Ming Yuan
- Department of Surgery, Feng Yuan Hospital, Ministry of Health and Welfare, Taichung, Taiwan
| | - Bang-Hung Liu
- Institute of Biomedical Sciences, National Chung Hsing University, Taichung, Taiwan
| | - Kai-Li Liu
- Department of Nutrition, Chung Shan Medical University, Taichung, Taiwan.,Department of Nutrition, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Chiung-Hua Wung
- Biotechnology Center, National Chung Hsing University, Taichung, Taiwan
| | - Show-Mei Chuang
- Institute of Biomedical Sciences, National Chung Hsing University, Taichung, Taiwan
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7
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Wang B, Liu W, Jiang X, Li J, Hu X, Li L, Gu Q. Overexpression of ribophorin II is required for viability of nasopharyngeal cancer cells by regulating JAK1/STAT3 activation. Immunopharmacol Immunotoxicol 2021; 43:471-477. [PMID: 34184962 DOI: 10.1080/08923973.2021.1942038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
OBJECTIVE This study aimed to elucidate the role of ribophorin II (RPN2) in nasopharyngeal cancer (NPC) cell survival and death. RPN2 expression was upregulated in 22 human NPC specimens and 5-8F and CNE1 cells compared with that in adjacent normal tissues and normal nasopharyngeal NP69 cells. MATERIALS AND METHODS CCK-8 and colony formation assays indicated that the silencing of RPN2 hindered the proliferation and growth of 5-8F and CNE1 cells. RESULTS RPN2 expression was upregulated in 22 human NPC specimens as well as in 5-8F and CNE1 cells compared with that in adjacent normal tissues and NP69 cells. CCK-8 and colony formation assays indicated that the silencing of RPN2 reduced the proliferation and growth of 5-8F and CNE1 cells. Annexin V/PI flow cytometry and Bcl-2/Bax analysis showed that RPN2 silencing led to increased apoptosis. Moreover, JAK1 was found to interact with RPN2, and total JAK1, STAT3, and phosphorylated STAT3 levels were dramatically decreased in cells with RPN2 silencing. Furthermore, the nuclear localization of STAT3 was blocked by the silencing of RPN2. The administration of the STAT3 activator colivelin could offset the inhibitory effect of RPN2 silencing on the survival and apoptosis of NPC cells. CONCLUSION RPN2 is upregulated in NPC tissues or cells, and RPN2 silencing repressed NPC cell proliferation and elicited apoptosis. RPN2 overexpression is possibly associated with JAK1/STAT3 silencing and activation. Finally, RPN2 represents a promising target for NPC treatment.
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Affiliation(s)
- Bin Wang
- Department of Otorhinolaryngology, Cangzhou Central Hospital, Cangzhou, Hebei, China
| | - Weiwei Liu
- Department of Otorhinolaryngology, Cangzhou Central Hospital, Cangzhou, Hebei, China
| | - Xue Jiang
- Department of Otorhinolaryngology, Cangzhou Central Hospital, Cangzhou, Hebei, China
| | - Jian Li
- Department of Otorhinolaryngology, Cangzhou Central Hospital, Cangzhou, Hebei, China
| | - Xiaodong Hu
- Department of Otorhinolaryngology, Cangzhou Central Hospital, Cangzhou, Hebei, China
| | - Liping Li
- Department of Otorhinolaryngology, Cangzhou Central Hospital, Cangzhou, Hebei, China
| | - Qianqian Gu
- Department of Geriatrics, Cangzhou Central Hospital, Cangzhou, Hebei, China
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Buda P, Chyb M, Smorczewska-Kiljan A, Wieteska-Klimczak A, Paczesna A, Kowalczyk-Domagała M, Okarska-Napierała M, Sobalska-Kwapis M, Grochowalski Ł, Słomka M, Sitek A, Ksia Żyk J, Strapagiel D. Association Between rs12037447, rs146732504, rs151078858, rs55723436, and rs6094136 Polymorphisms and Kawasaki Disease in the Population of Polish Children. Front Pediatr 2021; 9:624798. [PMID: 33692975 PMCID: PMC7937642 DOI: 10.3389/fped.2021.624798] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Accepted: 01/27/2021] [Indexed: 11/13/2022] Open
Abstract
Background: Kawasaki disease (KD) is an acute self-limited febrile vasculitis that mainly affects young children. Coronary artery involvement is the most serious complication in children with KD. It is currently the leading cause of acquired cardiac disease in children from developed countries. Literature data indicate a significant role of genetic susceptibility to KD. Objective: The aim of this study was to perform the first Genome-Wide Association Study (GWAS) in a population of Polish children with KD and identify susceptible genes involved in the pathogenesis of KD. Materials and Methods: The blood samples of Kawasaki disease patients (n = 119) were collected between 2016 and 2020, isolated and stored at the Department of Pediatrics, Nutrition and Metabolic Diseases, Children's Memorial Health Institute in Warsaw. The control group was based on Polish donors (n = 6,071) registered as the POPULOUS collection at the Biobank Lab of The Department of Molecular Biophysics in University of Lodz. DNA samples were genotyped for 558,231 Single Nucleotide Polymorphisms (SNPs) using the 24 × 1 Infinium HTS Human Core Exome microarrays according to the protocol provided by the manufacturer. In order to discover and verify genetic risk-factors for KD, association analysis was carried out using PLINK 1.9. Results: Of all 164,395 variants, 5 were shown to occur statistically (padjusted < 0.05) more frequent in Kawasaki disease patients than in controls. Those are: rs12037447 in non-coding sequence (padjusted = 8.329 × 10-4, OR = 8.697, 95% CI; 3.629-20.84) and rs146732504 in KIF25 (padjusted = 0.007354, OR = 11.42, 95% CI; 3.79-34.43), rs151078858 in PTPRJ (padjusted = 0.04513, OR = 8.116, 95% CI; 3.134-21.01), rs55723436 in SPECC1L (padjusted = 0.04596, OR = 5.596, 95% CI; 2.669-11.74), rs6094136 in RPN2 (padjusted = 0.04755, OR = 10.08, 95% CI; 3.385-30.01) genes. Conclusion: Polymorphisms of genes KIF25, PTRPJ, SPECC1L, RNP2 may be linked with the incidence of Kawasaki disease in Polish children.
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Affiliation(s)
- Piotr Buda
- Department of Pediatrics, Nutrition, and Metabolic Diseases, Children's Memorial Health Institute, Warsaw, Poland
| | - Maciej Chyb
- Biobank Lab, Department of Molecular Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Łódź, Poland
| | - Anna Smorczewska-Kiljan
- Department of Pediatrics, Nutrition, and Metabolic Diseases, Children's Memorial Health Institute, Warsaw, Poland
| | - Anna Wieteska-Klimczak
- Department of Pediatrics, Nutrition, and Metabolic Diseases, Children's Memorial Health Institute, Warsaw, Poland
| | - Agata Paczesna
- Department of Cardiology, The Children's Memorial Health Institute, Warsaw, Poland
| | | | | | - Marta Sobalska-Kwapis
- Biobank Lab, Department of Molecular Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Łódź, Poland.,BBMRI.pl Consortium, Wrocław, Poland
| | - Łukasz Grochowalski
- Biobank Lab, Department of Molecular Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Łódź, Poland
| | - Marcin Słomka
- Biobank Lab, Department of Molecular Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Łódź, Poland.,BBMRI.pl Consortium, Wrocław, Poland
| | - Aneta Sitek
- Department of Anthropology, Faculty of Biology and Environmental Protection, University of Lodz, Łódź, Poland
| | - Janusz Ksia Żyk
- Department of Pediatrics, Nutrition, and Metabolic Diseases, Children's Memorial Health Institute, Warsaw, Poland
| | - Dominik Strapagiel
- Biobank Lab, Department of Molecular Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Łódź, Poland.,BBMRI.pl Consortium, Wrocław, Poland
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RPN2 is targeted by miR-181c and mediates glioma progression and temozolomide sensitivity via the wnt/β-catenin signaling pathway. Cell Death Dis 2020; 11:890. [PMID: 33087705 PMCID: PMC7578010 DOI: 10.1038/s41419-020-03113-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Revised: 10/08/2020] [Accepted: 10/09/2020] [Indexed: 12/12/2022]
Abstract
Accumulating evidence indicates that the dysregulation of the miRNAs/mRNA-mediated carcinogenic signaling pathway network is intimately involved in glioma initiation and progression. In the present study, by performing experiments and bioinformatics analysis, we found that RPN2 was markedly elevated in glioma specimens compared with normal controls, and its upregulation was significantly linked to WHO grade and poor prognosis. Knockdown of RPN2 inhibited tumor proliferation and invasion, promoted apoptosis, and enhanced temozolomide (TMZ) sensitivity in vitro and in vivo. Mechanistic investigation revealed that RPN2 deletion repressed β-catenin/Tcf-4 transcription activity partly through functional activation of glycogen synthase kinase-3β (GSK-3β). Furthermore, we showed that RPN2 is a direct functional target of miR-181c. Ectopic miR-181c expression suppressed β-catenin/Tcf-4 activity, while restoration of RPN2 partly reversed this inhibitory effect mediated by miR-181c, implying a molecular mechanism in which TMZ sensitivity is mediated by miR-181c. Taken together, our data revealed a new miR-181c/RPN2/wnt/β-catenin signaling axis that plays significant roles in glioma tumorigenesis and TMZ resistance, and it represents a potential therapeutic target, especially in GBM.
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Sun J, Chen Z, Xiong J, Wang Q, Tang F, Zhang X, Mo L, Wang C, Fan W, Wang J. MicroRNA‑422a functions as a tumor suppressor in glioma by regulating the Wnt/β‑catenin signaling pathway via RPN2. Oncol Rep 2020; 44:2108-2120. [PMID: 33000268 PMCID: PMC7550978 DOI: 10.3892/or.2020.7741] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 07/16/2020] [Indexed: 12/17/2022] Open
Abstract
MicroRNAs (miRs), which act as crucial regulators of oncogenes and tumor suppressors, have been confirmed to play a significant role in the initiation and progression of various malignancies, including glioma. The present study analyzed the expression and roles of miR‑422a in glioma, and reverse transcription‑quantitative PCR confirmed that miR‑422a expression was significantly lower in glioblastoma multiforme (GBM) samples and cell lines compared with the low‑grade glioma samples and the H4 cell line, respectively. miR‑422a overexpression suppressed proliferation and invasion, and induced apoptosis in LN229 and U87 cell lines. Luciferase reporter assay, western blotting and RNA immunoprecipitation analysis revealed that ribophorin II (RPN2) is a direct functional target of miR‑422a. Additionally, the overexpression of RPN2 partially reversed the miR‑422a‑mediated inhibitory effect on the malignant phenotype. Mechanistic investigation demonstrated that the upregulation of miR‑422a inhibited β‑catenin/transcription factor 4 transcriptional activity, at least partially through RPN2, as indicated by in vitro and in vivo experiments. Furthermore, RPN2 expression was inversely correlated with miR‑422a expression in GBM specimens and predicted patient survival in the Chinese Glioma Genome Atlas, UALCAN, Gene Expression Profiling Interactive Analysis databases. In conclusion, the present data reveal a new miR‑422a/RPN2/Wnt/β‑catenin signaling axis that plays critical roles in glioma tumorigenesis, and it represents a potential therapeutic target for GBM.
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Affiliation(s)
- Jikui Sun
- School of Medicine, Nankai University, Tianjin 300071, P.R. China
| | - Zhijuan Chen
- Clinical Medicine School, Tianjin Medical University, Tianjin 300070, P.R. China
| | - Jinbiao Xiong
- Clinical Medicine School, Tianjin Medical University, Tianjin 300070, P.R. China
| | - Qiong Wang
- Tianjin Cerebral Vascular and Neural Degenerative Disease Key Laboratory, Tianjin Neurosurgery Institute, Department of Neurosurgery, Tianjin Huan Hu Hospital, Tianjin 300350, P.R. China
| | - Fan Tang
- Pathology Department, Tianjin Huan Hu Hospital, Tianjin 300350, P.R. China
| | - Xuebin Zhang
- Pathology Department, Tianjin Huan Hu Hospital, Tianjin 300350, P.R. China
| | - Lidong Mo
- Tianjin Cerebral Vascular and Neural Degenerative Disease Key Laboratory, Tianjin Neurosurgery Institute, Department of Neurosurgery, Tianjin Huan Hu Hospital, Tianjin 300350, P.R. China
| | - Chen Wang
- Tianjin Cerebral Vascular and Neural Degenerative Disease Key Laboratory, Tianjin Neurosurgery Institute, Department of Neurosurgery, Tianjin Huan Hu Hospital, Tianjin 300350, P.R. China
| | - Weijia Fan
- Tianjin Cerebral Vascular and Neural Degenerative Disease Key Laboratory, Tianjin Neurosurgery Institute, Department of Neurosurgery, Tianjin Huan Hu Hospital, Tianjin 300350, P.R. China
| | - Jinhuan Wang
- School of Medicine, Nankai University, Tianjin 300071, P.R. China
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11
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Fang Q, Liu H, Zhou A, Zhou H, Zhang Z. Circ_0046599 Promotes the Development of Hepatocellular Carcinoma by Regulating the miR-1258/RPN2 Network. Cancer Manag Res 2020; 12:6849-6860. [PMID: 32801909 PMCID: PMC7414927 DOI: 10.2147/cmar.s253510] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 07/10/2020] [Indexed: 12/14/2022] Open
Abstract
Background Many studies have confirmed that circular RNAs (circRNAs) play a key role in the biological progression of cancers. However, the function of a novel circRNA, circ_0046599, in hepatocellular carcinoma (HCC) progression has not been explored. Methods Quantitative real-time polymerase chain reaction (qRT-PCR) was performed to measure the expression of circ_0046599, microRNA (miR)-1258 and Ribophorin II (RPN2). Subcellular fractionation location assay was used to localize circ_0046599 in HCC cells. The circular characteristic of circ_0046599 was verified using Ribonuclease R (RNase R) digestion assay. Besides, cell counting kit 8 (CCK8) assay, colony formation assay, wound healing assay and transwell assay were used to detect cell proliferation, migration and invasion, respectively. The lactate production and glucose level were determined by Lactate and Glucose Assay Kits. Furthermore, the protein levels of glycolysis, metastasis and proliferation-related marker proteins, as well as RPN2 were tested by Western blot (WB) analysis. Moreover, dual-luciferase reporter assay and RNA immunoprecipitation (RIP) assay were employed to confirm the interactions among circ_0046599, miR-1258 and RPN2. In addition, mice xenograft models were applied to observe the effect of circ_0046599 silencing on HCC tumor growth in vivo. Results Circ_0046599 was highly expressed in HCC tissues and cells, and its knockdown could suppress HCC cell proliferation, migration, invasion and glycolysis process. MiR-1258 could be targeted by circ_0046599, and its inhibitor could invert the suppressing effect of circ_0046599 knockdown on HCC progression. Further, RPN2 was a target of miR-1258. Overexpressed RPN2 could reverse the inhibiting effect of miR-1258 overexpression on HCC progression. Also, knockdown of circ_0046599 could restrain HCC tumor growth in vivo. Conclusion Our results provided new evidence that circ_0046599 could promote the progression of HCC by increasing RPN2 expression via sponging miR-1258.
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Affiliation(s)
- Quangang Fang
- Department of Laboratory, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Nanchang 330006, Jiangxi, People's Republic of China
| | - Haiyun Liu
- Department of Laboratory, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Nanchang 330006, Jiangxi, People's Republic of China
| | - Aiqun Zhou
- Department of Laboratory, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Nanchang 330006, Jiangxi, People's Republic of China
| | - Huaping Zhou
- Department of Laboratory, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Nanchang 330006, Jiangxi, People's Republic of China
| | - Zhiyong Zhang
- Department of Laboratory, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Nanchang 330006, Jiangxi, People's Republic of China
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12
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Ren J, Wang Y, Wang L, Guo X, Guo X. Ribophorin II is upregulated in myelodysplastic syndromes and prevents apoptosis and cell cycle progression. Exp Biol Med (Maywood) 2020; 245:1009-1015. [PMID: 32447991 DOI: 10.1177/1535370220927996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
IMPACT STATEMENT This study explored the role of ribophorin II (RPN2) in myelodysplastic syndromes (MDSs) cell proliferation and growth and revealed that RPN2 knockdown suppressed OCI-AML3 cell growth and proliferation and triggered cell cycle arrest and elicited apoptosis in OCI-AML3 cells. In addition, it shed light on the etiology of RPN2's role in MDS cell proliferation that RPN2 can negatively impact enhancer of zeste homolog-2 (EZH2) expression, which in turn is able to modulate the cell cycle location and death in OCI-AML3 cells. Hence, RPN2 expression could be a latent predictor of prognosis in patients with MDS.
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Affiliation(s)
- Jinhai Ren
- Department of Hematology, Second Hospital of Hebei Medical University, Key Laboratory of Hematology of Hebei Province, Shijiazhuang, Hebei 050000, China
| | - Ying Wang
- Department of Hematology, Second Hospital of Hebei Medical University, Key Laboratory of Hematology of Hebei Province, Shijiazhuang, Hebei 050000, China
| | - Lihua Wang
- Department of Hematology, Second Hospital of Hebei Medical University, Key Laboratory of Hematology of Hebei Province, Shijiazhuang, Hebei 050000, China
| | - Xiaoling Guo
- Department of Hematology, Second Hospital of Hebei Medical University, Key Laboratory of Hematology of Hebei Province, Shijiazhuang, Hebei 050000, China
| | - Xiaonan Guo
- Department of Hematology, Second Hospital of Hebei Medical University, Key Laboratory of Hematology of Hebei Province, Shijiazhuang, Hebei 050000, China
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13
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DDX6 Helicase Behavior and Protein Partners in Human Adipose Tissue-Derived Stem Cells during Early Adipogenesis and Osteogenesis. Int J Mol Sci 2020; 21:ijms21072607. [PMID: 32283676 PMCID: PMC7177724 DOI: 10.3390/ijms21072607] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 03/12/2020] [Accepted: 03/16/2020] [Indexed: 12/20/2022] Open
Abstract
DDX6 helicase is an RNA-binding protein involved in different aspects of gene expression regulation. The roles played by DDX6 depend on the complexes associated with it. Here, for the first time, we characterize the protein complexes associated with DDX6 in human adipose tissue-derived stem cells (hASCs) and analyze the dynamics of this helicase under different conditions of translational activity and differentiation. The results obtained demonstrated that the DDX6 helicase is associated with proteins involved in the control of mRNA localization, translation and metabolism in hASCs. DDX6 complexes may also assemble into more complex structures, such as RNA-dependent granules, the abundance and composition of which change upon inhibited translational activity. This finding supports the supposition that DDX6 is possibly involved in the regulation of the mRNA life cycle in hASCs. Although there was no significant variation in the protein composition of these complexes during early adipogenic or osteogenic induction, there was a change in the distribution pattern of DDX6: the number of DDX6 granules per cell was reduced during adipogenesis and was enhanced during osteogenesis.
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14
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Ni L, Yu J, Gui X, Lu Z, Wang X, Guo H, Zhou Y. Overexpression of RPN2 promotes osteogenic differentiation of hBMSCs through the JAK/STAT3 pathway. FEBS Open Bio 2019; 10:158-167. [PMID: 31743606 PMCID: PMC6943221 DOI: 10.1002/2211-5463.12766] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2019] [Revised: 10/28/2019] [Accepted: 11/18/2019] [Indexed: 12/13/2022] Open
Abstract
Osteoporosis is characterized by decreased bone mass and degenerating bone structure, which cause severe bone fragility and increase the risk for fractures. Human bone mesenchymal stem cells (hBMSCs) differentiate into osteoblasts through osteogenesis, and disturbances in the balance between bone generation and degeneration underlie the pathogenesis of senile osteoporosis. The highly conserved glycoprotein Ribophorin II (RPN2) is involved in multiple biological reactions, but the role of RPN2 in the osteogenic differentiation of hBMSCs and their molecular etiology is incompletely understood. Here, we show that RPN2 expression is up‐regulated in hBMSCs during osteogenic differentiation. In vitro assays revealed that silencing of RPN2 inhibited hBMSC differentiation into osteoblasts. Moreover, RPN2 overexpression enhanced the expression of linked genes and resulted in high alkaline phosphatase activity. Our results suggest that RPN2 targets Janus kinase 1 (JAK1), and RPN2 overexpression was observed to induce JAK1 ubiquitination. Depletion of JAK1 facilitated osteogenic differentiation of RPN2‐silenced hBMSCs. Moreover, western blot analysis revealed that RPN2 silencing suppressed the stimulation and nuclear translocation of the downstream signal transducer and activator of transcription 3 sensor; this could be reversed via RPN2 overexpression. This research sheds light on an innovative molecular mechanism that is associated with hBMSC differentiation into osteoblasts and may facilitate bone anabolism through RPN2.
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Affiliation(s)
- Ling Ni
- Department of Geriatrics, Yangpu District Shidong Hospital, Shanghai, China
| | - Jianhua Yu
- Department of Geriatrics, Yangpu District Shidong Hospital, Shanghai, China
| | - Xueqiong Gui
- Department of Geriatrics, Yangpu District Shidong Hospital, Shanghai, China
| | - Zhonghua Lu
- Department of Geriatrics, Yangpu District Shidong Hospital, Shanghai, China
| | - Xiwen Wang
- Department of Geriatrics, Yangpu District Shidong Hospital, Shanghai, China
| | - Hongyan Guo
- Department of Geriatrics, Yangpu District Shidong Hospital, Shanghai, China
| | - Ying Zhou
- Department of Geriatrics, Yangpu District Shidong Hospital, Shanghai, China
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15
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Huang L, Jian Z, Gao Y, Zhou P, Zhang G, Jiang B, Lv Y. RPN2 promotes metastasis of hepatocellular carcinoma cell and inhibits autophagy via STAT3 and NF-κB pathways. Aging (Albany NY) 2019; 11:6674-6690. [PMID: 31481647 PMCID: PMC6756868 DOI: 10.18632/aging.102167] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Accepted: 08/05/2019] [Indexed: 12/11/2022]
Abstract
This study aimed to investigate the function and the molecular mechanism of Ribophorin II (RPN2) in regulating Hepatocellular carcinoma (HCC) cell growth, metastasis, and autophagy. Quantitative real-time PCR (qPCR), western blotting analysis, and immunofluorescence assay were utilized to detect the RPN2 expression in HCC cell lines and specimens of HCC patients. We discovered that RPN2 expression was upregulated in HCC cell lines and tissues of HCC patients, which correlated with the low histological grade and low survival rate. Enhanced RPN2 expression stimulated cell proliferation, metastasis, invasion, and epithelial-mesenchymal transition (EMT), and decreased Microtubule-associated protein light chain 3B (LC3B) synthesis and reduced the expression of p62 protein. Further studies suggested that matrix metalloproteinase 9 (MMP-9) was partially upregulated by RPN2 via Nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) p65. Interestingly, we found that phosphorylated RPN2 activated the signal transducer and activator of transcription 3 (STAT3) in HCC cells. It was also accountable for RPN2-stimulated elevated expression of MMP-9 and for invading HCC cells. It can be concluded that over-expression of RPN2 in HCC aggravated the malignant progression into cancerous cells. This research provided new evidences that RPN2 could facilitate tumor invasion by increasing the expression of MMP-9 in HCC cells.
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Affiliation(s)
- Linsheng Huang
- National Local Joint Engineering Research Center for Precision Surgery and Regenerative Medicine, Xi’an, Shaanxi Province, China
- Department of Hepatopancreatobiliary Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei Province, China
| | - Zhiyuan Jian
- The First General Surgery Department of the Hospital Affiliated Guilin Medical University, Guilin, Guangxi Province, China
| | - Yi Gao
- National Local Joint Engineering Research Center for Precision Surgery and Regenerative Medicine, Xi’an, Shaanxi Province, China
- Department of Hepatopancreatobiliary Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei Province, China
| | - Ping Zhou
- Department of Hepatopancreatobiliary Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei Province, China
| | - Gan Zhang
- Department of Hepatopancreatobiliary Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei Province, China
| | - Bin Jiang
- Department of Hepatopancreatobiliary Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei Province, China
| | - Yi Lv
- National Local Joint Engineering Research Center for Precision Surgery and Regenerative Medicine, Xi’an, Shaanxi Province, China
- Department of Hepatobiliary Surgery, The First Affiliated Hospital, Xi’an Jiaotong University, Xi’an, Shaanxi Province, China
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16
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Li Y, Huang C, Bai Q, Yu J. Ribophorin II promotes cell proliferation, migration, and invasion in esophageal cancer cells in vitro and in vivo. Biosci Rep 2019; 39:BSR20182448. [PMID: 30940778 PMCID: PMC6505194 DOI: 10.1042/bsr20182448] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 03/26/2019] [Accepted: 03/29/2019] [Indexed: 12/16/2022] Open
Abstract
Esophageal cancer is a common digestive tract cancer, which is a serious threat to human health. Ribophorin II (RPN2) is a part of an N-oligosaccharyltransferase complex, which is excessively expressed in many kinds of cancers. In the present study, we explore the biological role of RNP2 in esophageal cancer. First, we found that the expression of RPN2 was higher in esophageal cancer tissues than in adjacent non-tumor tissues, and negatively correlated with E-cadherin expression. RPN2 expression levels in esophageal cancer tissues were positively associated with differentiation and tumor node metastasis (TNM) stage. Furthermore, the expression of RPN2 was increased significantly in esophageal cancer cell lines compared with normal cells. The effect of RPN2 down-regulation on cell proliferation, cell migration, and cell invasion was examined by cell counting kit-8 (CCK8), wound healing assay, and Transwell assay, respectively. Silencing RPN2 effectively inhibited cell proliferation of esophageal cancer cells in vitro and in vivo Cell migration and invasion were also weakened dramatically by siRPN2 treatment of esophageal cancer cells. In addition, protein expression of proliferating cell nuclear antigen (PCNA), matrix metalloproteinase (MMP-2), and E-cadherin in esophageal cancer cells was determined by Western blot analysis. PCNA, MMP-2, E-cadherin, Snail and phosphorylation-Smad2/3 expression was also regulated notably by siRPN2 treatment. These findings indicate that RPN2 exhibits oncogenetic capabilities in esophageal cancer, which could provide novel insights into esophageal cancer prevention and treatment.
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Affiliation(s)
- Yongshun Li
- Department of the first thoracic surgery, Gansu Provincial people's Hospital, Lanzhou 730000, China
| | - Changrong Huang
- Department of the first thoracic surgery, Gansu Provincial people's Hospital, Lanzhou 730000, China
| | - Qizhou Bai
- Department of the first thoracic surgery, Gansu Provincial people's Hospital, Lanzhou 730000, China
| | - Jun Yu
- Department of the first thoracic surgery, Gansu Provincial people's Hospital, Lanzhou 730000, China
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17
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Zhang H, Jiang H, Zhang H, Liu J, Hu X, Chen L. Ribophorin II potentiates P-glycoprotein- and ABCG2-mediated multidrug resistance via activating ERK pathway in gastric cancer. Int J Biol Macromol 2019; 128:574-582. [PMID: 30710584 DOI: 10.1016/j.ijbiomac.2019.01.195] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Revised: 01/15/2019] [Accepted: 01/29/2019] [Indexed: 12/12/2022]
Abstract
Multidrug resistance (MDR) is a critical reason of cancer chemotherapy failure. Ribophorin II (RPN2) has emerged as a vital regulator of MDR in multiple cancers including gastric cancer (GC). However, the roles and molecular mechanisms of RPN2 in MDR have not been well featured till now. The present study aimed to explore the roles and molecular mechanisms of RPN2 in MDR of drug-resistant GC cells. Results showed that the expressions of RPN2, multidrug resistance 1 (MDR1), and ATP binding cassette subfamily G member 2 (ABCG2) were upregulated in SGC7901/DDP and SGC7901/VCR cells. Knockdown of RPN2 alleviated MDR through downregulating MDR1 and ABCG2 expressions in SGC7901/DDP and SGC7901/VCR cells. RPN2 depletion inhibited the activation of MEK/ERK pathway. RPN2 overexpression enhanced MDR by upregulating P-glycoprotein (P-gp) and ABCG2 protein expressions in SGC7901/DDP or SGC7901/VCR cells, while this effect of RPN2 was abrogated by ERK knockdown or treatment with ERK inhibitor PD98059. Our findings suggested that RPN2 potentiated P-gp- and ABCG2-mediated MDR via activating MEK/ERK pathway in GC, hinting the critical values of RPN2 in ameliorating MDR and providing a promising target for GC therapy.
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Affiliation(s)
- Hongzhi Zhang
- Department of Radiotherapy, Huaihe Hospital of Henan University, Kaifeng 475000, PR China.
| | - Huijuan Jiang
- Department of Radiotherapy, Huaihe Hospital of Henan University, Kaifeng 475000, PR China
| | - Huixiang Zhang
- Department of Radiotherapy, Huaihe Hospital of Henan University, Kaifeng 475000, PR China
| | - Juncai Liu
- Department of Radiotherapy, Huaihe Hospital of Henan University, Kaifeng 475000, PR China
| | - Xigang Hu
- Department of Radiotherapy, Huaihe Hospital of Henan University, Kaifeng 475000, PR China
| | - Lei Chen
- Department of Radiotherapy, Huaihe Hospital of Henan University, Kaifeng 475000, PR China
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18
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Bi C, Jiang B. Downregulation of RPN2 induces apoptosis and inhibits migration and invasion in colon carcinoma. Oncol Rep 2018; 40:283-293. [PMID: 29749494 PMCID: PMC6059750 DOI: 10.3892/or.2018.6434] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Accepted: 04/27/2018] [Indexed: 12/12/2022] Open
Abstract
The morbidity of colorectal cancer (CRC) increases annualy, which accounts to higher mortality worldwide. Therefore, it is important to study the pathogenesis of colon cancer. Ribophorin II (RPN2), part of the N-oligosaccharyltransferase complex, is highly expressed in CRC. In the present study, we investigated whether RPN2 can regulate apoptosis, migration and invasion by RNA interference in CRC and sought to clarify the molecular mechanism involved. Based on previous research, an abnormal high expression of RPN2 was observed in CRC tissues and cell lines by real-time (RT)-PCR, immunohistochemistry (IHC) and western blot analysis. RPN2 knockdown via small RNA interference (siRNA) strategy attenuated the expression of RPN2 at the mRNA and protein levels in vivo, leading to decreased cell viability and increased cell apoptosis. In addition, RNAi-RPN2 effectively arrested the cell cycle at the G0/G1-phase in SW1116 and SW480 cells. Furthermore, the Transwell assay demonstrated that cell migration and invasion abilities were significantly inhibited after cell transfection with RPN2 interference plasmid. The apoptosis-related protein (caspase-3) expression was increased and the cell cycle-related protein (cyclin D1) expression was decreased in the siRNA-RPN2 group. RT-PCR and western blot analysis results indicated that migration- and invasion-related proteins including E-cadherin, matrix metalloproteinases (MMP)-2 and TIMP-2 were markedly regulated by RPN2 siRNA. Phosphorylation levels of signal transducer and activator of transcription (STAT)3 and Janus kinase (JAK)2 were inhibited by RPN2 siRNA. These findings indicated a novel pathway of tumor-promoting activity by RPN2 in CRC, with significant implications for unraveling the tumorigenesis of CRC.
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Affiliation(s)
- Chongyao Bi
- Department of General Surgery, Jiaozhou Central Hospital of Qingdao, Qingdao, Shandong 266300, P.R. China
| | - Baofei Jiang
- Department of General Surgery, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, Jiangsu 223300, P.R. China
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19
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Diao C, Xi Y, Xiao T. Identification and analysis of key genes in osteosarcoma using bioinformatics. Oncol Lett 2017; 15:2789-2794. [PMID: 29435005 PMCID: PMC5778824 DOI: 10.3892/ol.2017.7649] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Accepted: 06/21/2017] [Indexed: 12/13/2022] Open
Abstract
Osteosarcoma (OS) is an invasive malignant neoplasm of the bones. The present study identified and analyzed key genes associated with OS. Expression profiling of the dataset GSE49003, which included 6 metastatic and 6 non-metastatic OS cell lines and was obtained from the Gene Expression Omnibus, was performed. Following data preprocessing, the differentially expressed genes (DEGs) were selected using the limma package in R. Subsequently, bidirectional hierarchical clustering using the pheatmap package in R and an unpaired Students' t-test was performed for the DEGs. Based on the Search Tool for the Retrieval of Interacting Genes database and Cytoscape software, a protein-protein interaction (PPI) network for the DEGs was constructed. Using Database for Annotation, Visualization and Integrated Discovery software and the Kyoto Encyclopedia of Genes and Genomes Orthology Based Annotation System server, functional and pathway enrichment analyses were performed for the DEGs corresponding to the proteins of the network. In addition, the transcription factors (TFs) and CpG islands of the gene promoter were searched for using the TRANSFAC database and CpG Island Searcher software, respectively. A total of 323 DEGs were identified between the metastatic and non-metastatic samples. In the PPI network, upregulated epidermal growth factor receptor (EGFR) exhibits a high degree and was therefore highly interconnected with other proteins. Enrichment analysis revealed that EGFR was enriched in cytoskeleton organization, organic substance response and the signaling pathway of focal adhesion. The TFs early growth response 1, nuclear factor-κB complex subunits, peroxisome proliferator activated receptor α, signal transducer and activator of transcription 3 and MYC proto-oncogene were identified in the EGFR promoter region. Furthermore, multiple CpG islands, starting from the 400 bp of the EGFR promoter sequence, were predicted. Methylated modification of the CpG islands in the EGFR promoter may help to regulate EGFR expression. The TFs identified in the EGFR promoter may function in the progression of OS.
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Affiliation(s)
- Chunyu Diao
- Department of Orthopedics, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, P.R. China
| | - Yong Xi
- Department of Orthopedics, Tongchuan People's Hospital, Tongchuan, Shaanxi 727000, P.R. China
| | - Tao Xiao
- Department of Orthopedics, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, P.R. China
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20
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Li H, Al-Japairai K, Tao Y, Xiang Z. RPN2 promotes colorectal cancer cell proliferation through modulating the glycosylation status of EGFR. Oncotarget 2017; 8:72633-72651. [PMID: 29069815 PMCID: PMC5641158 DOI: 10.18632/oncotarget.20005] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Accepted: 07/12/2017] [Indexed: 12/15/2022] Open
Abstract
Various studies have found that silencing ribophorin II (RPN2) inhibits cell growth in several cancers. However, the underlying mechanism by which RPN2 regulates cancer cell proliferation remains unclear. Herein, we reveal that downregulation of RPN2, which may be a crucial regulator of N-linked glycosylation in cancer cells and drug-resistant cancer cells, promoted the progression of colorectal cancer (CRC) cell cycle and proliferation in vitro and in vivo. We found that RPN2 silencing reduced glycosylation of EGFR, a highly N-link glycosylated cell surface glycoprotein that plays a critical role in majority of human cancers correlating with increased cell growth, proliferation, and differentiation. In addition, RPN2 knockdown decreased EGFR expression and cell surface transport by EGFR deglycosylation. In summary, our findings suggest that RPN2 regulates CRC cell proliferation through mediating the glycosylation of EGFR which affecting the EGFR/ERK signaling pathways. Clinicopathological analysis showed that the overexpression of RPN2 and EGFR was positively correlated with colorectal tumor size. Therefore, RPN2 may be a new therapeutic target and prognostic biomarker for CRC.
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Affiliation(s)
- Haiping Li
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Department of General Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - K Al-Japairai
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Department of General Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yong Tao
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Department of General Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Zheng Xiang
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Department of General Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
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21
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Oliveira-Ferrer L, Legler K, Milde-Langosch K. Role of protein glycosylation in cancer metastasis. Semin Cancer Biol 2017; 44:141-152. [PMID: 28315783 DOI: 10.1016/j.semcancer.2017.03.002] [Citation(s) in RCA: 174] [Impact Index Per Article: 24.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Revised: 03/08/2017] [Accepted: 03/13/2017] [Indexed: 02/06/2023]
Abstract
Although altered glycosylation has been detected in human cancer cells decades ago, only investigations in the last years have enormously increased our knowledge about the details of protein glycosylation and its role in tumour progression. Many proteins, which are heavily glycosylated, i.e. adhesion proteins or proteases, play an important role in cancer metastasis that represents the crucial and frequently life-threatening step in progression of most tumour types. Compared to normal tissue, tumour cells often show altered glycosylation patters with appearance of new tumour-specific antigens. In this review, we give an overview about the role of glycosylation in tumour metastasis, describing recent results about O-glycans, N-glycans and glycosaminoglycans. We show that glycan structures, glycosylated proteins and glycosylation enzymes have influence on different steps of the metastatic process, including epithelial-mesenchymal transition (EMT), migration, invasion/intravasation and extravasation of tumour cells. Regarding the important role of cancer metastasis for patients survival, further knowledge about the consequences of altered glycosylation patterns in tumour cells is needed which might eventually lead to the development of novel therapeutic approaches.
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Affiliation(s)
| | - Karen Legler
- Department of Gynecology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Karin Milde-Langosch
- Department of Gynecology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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22
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Terenina E, Fabre S, Bonnet A, Monniaux D, Robert-Granié C, SanCristobal M, Sarry J, Vignoles F, Gondret F, Monget P, Tosser-Klopp G. Differentially expressed genes and gene networks involved in pig ovarian follicular atresia. Physiol Genomics 2017; 49:67-80. [DOI: 10.1152/physiolgenomics.00069.2016] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Revised: 11/28/2016] [Accepted: 12/02/2016] [Indexed: 01/08/2023] Open
Abstract
Ovarian folliculogenesis corresponds to the development of follicles leading to either ovulation or degeneration, this latter process being called atresia. Even if atresia involves apoptosis, its mechanism is not well understood. The objective of this study was to analyze global gene expression in pig granulosa cells of ovarian follicles during atresia. The transcriptome analysis was performed on a 9,216 cDNA microarray to identify gene networks and candidate genes involved in pig ovarian follicular atresia. We found 1,684 significantly regulated genes to be differentially regulated between small healthy follicles and small atretic follicles. Among them, 287 genes had a fold-change higher than two between the two follicle groups. Eleven genes ( DKK3, GADD45A, CAMTA2, CCDC80, DAPK2, ECSIT, MSMB, NUPR1, RUNX2, SAMD4A, and ZNF628) having a fold-change higher than five between groups could likely serve as markers of follicular atresia. Moreover, automatic confrontation of deregulated genes with literature data highlighted 93 genes as regulatory candidates of pig granulosa cell atresia. Among these genes known to be inhibitors of apoptosis, stimulators of apoptosis, or tumor suppressors INHBB, HNF4, CLU, different interleukins ( IL5, IL24), TNF-associated receptor ( TNFR1), and cytochrome-c oxidase ( COX) were suggested as playing an important role in porcine atresia. The present study also enlists key upstream regulators in follicle atresia based on our results and on a literature review. The novel gene candidates and gene networks identified in the current study lead to a better understanding of the molecular regulation of ovarian follicular atresia.
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Affiliation(s)
- Elena Terenina
- GenPhySE, Université de Toulouse, INRA, INPT, ENVT, Castanet Tolosan, France
| | - Stephane Fabre
- GenPhySE, Université de Toulouse, INRA, INPT, ENVT, Castanet Tolosan, France
| | - Agnès Bonnet
- GenPhySE, Université de Toulouse, INRA, INPT, ENVT, Castanet Tolosan, France
| | - Danielle Monniaux
- INRA UMR 0085, CNRS UMR 7247, Université Francois Rabelais de Tours, IFCE, Physiologie de la Reproduction et des Comportements, Nouzilly, France
| | | | - Magali SanCristobal
- GenPhySE, Université de Toulouse, INRA, INPT, ENVT, Castanet Tolosan, France
| | - Julien Sarry
- GenPhySE, Université de Toulouse, INRA, INPT, ENVT, Castanet Tolosan, France
| | - Florence Vignoles
- GenPhySE, Université de Toulouse, INRA, INPT, ENVT, Castanet Tolosan, France
| | - Florence Gondret
- INRA, UMR1348 Pegase, Saint‐Gilles, France; and
- AgroCampus-Ouest, UMR1348 Pegase, Saint‐Gilles, France
| | - Philippe Monget
- INRA UMR 0085, CNRS UMR 7247, Université Francois Rabelais de Tours, IFCE, Physiologie de la Reproduction et des Comportements, Nouzilly, France
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23
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Prognostic and therapeutic impact of RPN2-mediated tumor malignancy in non-small-cell lung cancer. Oncotarget 2016; 6:3335-45. [PMID: 25595901 PMCID: PMC4413657 DOI: 10.18632/oncotarget.2793] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Accepted: 11/20/2014] [Indexed: 12/12/2022] Open
Abstract
RNA interference (RNAi) is a powerful gene-silencing platform for cancer treatment. Previously, we demonstrated that ribophorin II (RPN2), which is part of the N-oligosaccharyl transferase complex, regulates docetaxel sensitivity and tumor lethal phenotypes in breast cancer. However, the molecular functions and clinical relevance of RPN2 in non-small-cell lung cancer (NSCLC) remain unknown. Here, we examined RPN2 expression in tumor specimens from recurrent NSCLC patients after resection (n = 32 and = 177) and assessed the correlation between RPN2 expression and various clinical features. We also investigated whether RPN2 affects cancer malignancy in vitro and tumor growth and drug resistance in vivo. Our data show that RPN2 expression confers early and distant recurrence as well as poor survival in NSCLC patients. Furthermore, RPN2 silencing suppressed cell proliferation and invasiveness, and increased the sensitivity to chemotherapeutic drugs in vitro. Remarkably, we found that intrinsic apoptosis signaling is the mechanism of cell death involved with RPN2 knockdown. Strikingly, RPN2 silencing repressed tumorigenicity and sensitized the tumors to cisplatin treatment, which led to the longer survival of NSCLC-bearing mice. In conclusion, these data suggest that RPN2 is involved in the regulation of lethal cancer phenotypes and represents a promising new target for RNAi-based medicine against NSCLC.
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Zhang J, Yan B, Späth SS, Qun H, Cornelius S, Guan D, Shao J, Hagiwara K, Van Waes C, Chen Z, Su X, Bi Y. Integrated transcriptional profiling and genomic analyses reveal RPN2 and HMGB1 as promising biomarkers in colorectal cancer. Cell Biosci 2015; 5:53. [PMID: 26388988 PMCID: PMC4574027 DOI: 10.1186/s13578-015-0043-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Accepted: 08/16/2015] [Indexed: 02/07/2023] Open
Abstract
Colorectal cancer (CRC) is a heterogeneous disease that is associated with a gradual accumulation of genetic and epigenetic alterations. Among all CRC stages, stage II tumors are highly heterogeneous with a high relapse rate in about 20–25 % of stage II CRC patients following surgery. Thus, a comprehensive analysis of gene signatures to identify aggressive and metastatic phenotypes in stage II CRC is desired for a more accurate disease classification and outcome prediction. By utilizing a Cancer Array, containing 440 oncogenes and tumor suppressors to profile mRNA expression, we identified a larger number of differentially expressed genes in poorly differentiated stage II colorectal adenocarcinoma tissues, compared to their matched normal tissues. Ontology and Ingenuity Pathway Analysis (IPA) indicated that these genes are involved in functional mechanisms associated with several transcription factors. Genomic alterations of these genes were also investigated through The Cancer Genome Atlas (TCGA) database, utilizing 195 published CRC specimens. The percentage of genomic alterations in these genes was ranked based on their mRNA expression, copy number variations and mutations. This data was further combined with published microarray studies from a large set of CRC tumors classified based on prognostic features. This led to the identification of eight candidate genes including RPN2, HMGB1, AARS, IGFBP3, STAT1, HYOU1, NQO1 and PEA15 that were associated with the progressive phenotype. In particular, RPN2 and HMGB1 displayed a higher genomic alteration frequency in CRC, compared to eight other major solid cancers. Immunohistochemistry was performed on additional 78 stage I–IV CRC samples, where RPN2 protein immunostaining exhibited a significant association with stage III/IV tumors, distant metastasis, and poor differentiation, indicating that RPN2 expression is associated with poor prognosis. Further, our study revealed significant transcriptional regulatory mechanisms, networks and gene signatures, underlying CRC malignant progression and phenotype warranting future clinical investigations.
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Affiliation(s)
- Jialing Zhang
- School of Public Health, Wuhan University, Wuhan, China ; Clinical Medicine Research Center, The Affiliated Hospital, Inner Mongolia Medical University, Hohhot, China ; Tumor Biology Section, Head and Neck Surgery Branch, National Institute on Deafness and Other Communication Disorders, NIH, Bethesda, USA
| | - Bin Yan
- Laboratory for Food Safety and Environmental Technology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Stephan Stanislaw Späth
- Pediatric Endocrinology Unit, Department of Women's and Children's Health, Karolinska Institute and University Hospital, Stockholm, Sweden
| | - Hu Qun
- Department of Oncology, The Affiliated Hospital, Inner Mongolia Medical University, Hohhot, China
| | - Shaleeka Cornelius
- Tumor Biology Section, Head and Neck Surgery Branch, National Institute on Deafness and Other Communication Disorders, NIH, Bethesda, USA
| | - Daogang Guan
- Department of Biology, Hong Kong Baptist University, Hong Kong, China
| | - Jiaofang Shao
- Department of Bioinformatics, School of Basic Medical Sciences, Nanjing Medical University, Nanjing, China
| | - Koichi Hagiwara
- Department of Respiratory Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Carter Van Waes
- Tumor Biology Section, Head and Neck Surgery Branch, National Institute on Deafness and Other Communication Disorders, NIH, Bethesda, USA
| | - Zhong Chen
- Tumor Biology Section, Head and Neck Surgery Branch, National Institute on Deafness and Other Communication Disorders, NIH, Bethesda, USA
| | - Xiulan Su
- Clinical Medicine Research Center, The Affiliated Hospital, Inner Mongolia Medical University, Hohhot, China
| | - Yongyi Bi
- School of Public Health, Wuhan University, Wuhan, China
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25
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Fedorova MS, Kudryavtseva AV, Lakunina VA, Snezhkina AV, Volchenko NN, Slavnova EN, Danilova TV, Sadritdinova AF, Melnikova NV, Belova AA, Klimina KM, Sidorov DV, Alekseev BY, Kaprin AD, Dmitriev AA, Krasnov GS. Downregulation of OGDHL expression is associated with promoter hypermethylation in colorectal cancer. Mol Biol 2015. [DOI: 10.1134/s0026893315040044] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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