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Guerber L, Pangou E, Sumara I. Ubiquitin Binding Protein 2-Like (UBAP2L): is it so NICE After All? Front Cell Dev Biol 2022; 10:931115. [PMID: 35794863 PMCID: PMC9250975 DOI: 10.3389/fcell.2022.931115] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 06/01/2022] [Indexed: 12/30/2022] Open
Abstract
Ubiquitin Binding Protein 2-like (UBAP2L, also known as NICE-4) is a ubiquitin- and RNA-binding protein, highly conserved in metazoans. Despite its abundance, its functions have only recently started to be characterized. Several studies have demonstrated the crucial involvement of UBAP2L in various cellular processes such as cell cycle regulation, stem cell activity and stress-response signaling. In addition, UBAP2L has recently emerged as a master regulator of growth and proliferation in several human cancers, where it is suggested to display oncogenic properties. Given that this versatile protein is involved in the regulation of multiple and distinct cellular pathways, actively contributing to the maintenance of cell homeostasis and survival, UBAP2L might represent a good candidate for future therapeutic studies. In this review, we discuss the current knowledge and latest advances on elucidating UBAP2L cellular functions, with an aim to highlight the importance of targeting UBAP2L for future therapies.
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Affiliation(s)
- Lucile Guerber
- Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), Illkirch, France
- Centre National de la Recherche Scientifique UMR 7104, Strasbourg, France
- Institut National de la Santé et de la Recherche Médicale U964, Strasbourg, France
- Université de Strasbourg, Strasbourg, France
| | - Evanthia Pangou
- Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), Illkirch, France
- Centre National de la Recherche Scientifique UMR 7104, Strasbourg, France
- Institut National de la Santé et de la Recherche Médicale U964, Strasbourg, France
- Université de Strasbourg, Strasbourg, France
| | - Izabela Sumara
- Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), Illkirch, France
- Centre National de la Recherche Scientifique UMR 7104, Strasbourg, France
- Institut National de la Santé et de la Recherche Médicale U964, Strasbourg, France
- Université de Strasbourg, Strasbourg, France
- *Correspondence: Izabela Sumara,
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Wang D, Ao J, Xiong Y, Zhang X, Zhang W. Systematic Analysis of Stress Granule Regulators-Associated Molecular Subtypes Predicts Drug Response, Immune Response, and Prognosis in Non-Small Cell Lung Cancer. Front Cell Dev Biol 2022; 10:868918. [PMID: 35433677 PMCID: PMC9006074 DOI: 10.3389/fcell.2022.868918] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 03/09/2022] [Indexed: 01/22/2023] Open
Abstract
Lung cancer has the world’s second highest cancer incidence and second highest cancer-related mortality rate. However, the mechanism underlying non-small cell lung cancer (NSCLC) remained to be unclear. Overall, this study for the first time revealed Stress Granule Regulators were mutated and dysregulated in NSCLC samples by analyzing TCGA database. Moreover, three subtypes of NSCLC were identified based on the expression levels of Stress Granule Regulators. Patients in cluster 2 showed a higher survival rate than those in clusters 1 and 3. Bioinformatics analysis indicated the cell cycle, mTOR signaling pathway, EGFR signaling, PI3K/Akt signaling and DNA damage repair signaling were significantly related to molecular subtypes. Moreover, we performed a prediction analysis of the response to the inhibitors against the aforementioned signaling. Our results showed patients in C2 NSCLC had the highest sensitivity to MK.2206 (AKT.inhibitor) and Rapamycin (mTOR inhibitor). Patients in C3 NSCLC had the highest sensitivity for Temsirolimus (PI3K/mTOR signaling), BIBW2992 (EGFR signaling), Erlotinib (EGFR signaling), PD.0332991 (CDK4/6 inhibitor), CGP.60474 (CDK inhibitor), and Gefitinib (EGFR signaling). Moreover, our results showed patients in C1 NSCLC had the highest sensitivity to AKT.inhibitor, AZD6482 (PI3K inhibitor). To evaluate the response to immune therapy of different subtypes, we analyzed the tumor immune inflation, immune regulators expression, and TIDE score in different SG related subtypes. These results showed that C2 and C3 may be more sensitive to immune therapy. To better predict the prognosis of NSCLC, we analyzed the correlation between stress granule regulator expression and overall survival time in NSCLC and constructed a Stress Granule Score including EIF2S1, CTSG, EIF4G1, IGF2BP1, PABPC1 to predict the prognosis of NSCLC. Overall, this study for the first time uncovers the effect of stress particles on drug response, immune response, and prognosis, laying a new theoretical foundation for the NSCLC prognosis and treatment.
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Affiliation(s)
- Dan Wang
- Department of Pharmacy, The Second Affiliated Hospital of Nanchang University, Nanchang, China
- State Key Laboratory of Genetic Engineering, Shanghai Engineering Research Center of Industrial Microorganisms, School of Life Science, Fudan University, Shanghai, China
| | - Jiangen Ao
- Department of Pharmacy, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Youwen Xiong
- Department of Testing, Jiangxi Center of Medical Device Testing, Nanchang, China
| | - Xinyi Zhang
- Department of Respiratory Diseases, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Weifang Zhang
- Department of Pharmacy, The Second Affiliated Hospital of Nanchang University, Nanchang, China
- *Correspondence: Weifang Zhang,
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UBAP2L promotes gastric cancer metastasis by activating NF-κB through PI3K/AKT pathway. Cell Death Dis 2022; 8:123. [PMID: 35304439 PMCID: PMC8933503 DOI: 10.1038/s41420-022-00916-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 02/11/2022] [Accepted: 02/24/2022] [Indexed: 02/05/2023]
Abstract
Ubiquitin-associated protein 2-like (UBAP2L) is highly expressed in various types of tumors and has been shown to participate in tumor growth and metastasis; however, its role in gastric cancer (GC) remains unknown. In this study, we observed that UBAP2L expression was markedly elevated in GC tissues and five GC cell lines. Higher expression of UBAP2L was associated with poor prognosis as revealed by bioinformatics analysis on online websites and laboratory experiments. Knockdown of UBAP2L impeded the migration and invasion abilities of GC cell lines. In contrast, its overexpression enhanced the migration and invasion abilities of GC cell lines. Overexpression of UBAP2L also increased the number and size of lung metastatic nodules in vivo. According to the results of mass spectrometry and pathway annotation of the identified proteins, the PI3K/AKT pathway was found to be related to UBAP2L regulation. Further exploration and rescue experiments revealed that UBAP2L stimulates the expression and nuclear aggregation of p65 and promotes the expression of SP1 by activating the PI3K/AKT pathway. In summary, our findings indicate that UBAP2L regulates GC metastasis through the PI3K/AKT/SP1/NF-κB axis. Thus, targeting UBAP2L may be a potential therapeutic strategy for GC.
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Carlston C, Weinmann R, Stec N, Abbatemarco S, Schwager F, Wang J, Ouyang H, Ewald CY, Gotta M, Hammell CM. PQN-59 antagonizes microRNA-mediated repression during post-embryonic temporal patterning and modulates translation and stress granule formation in C. elegans. PLoS Genet 2021; 17:e1009599. [PMID: 34807903 PMCID: PMC8648105 DOI: 10.1371/journal.pgen.1009599] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 12/06/2021] [Accepted: 10/27/2021] [Indexed: 12/14/2022] Open
Abstract
microRNAs (miRNAs) are potent regulators of gene expression that function in a variety of developmental and physiological processes by dampening the expression of their target genes at a post-transcriptional level. In many gene regulatory networks (GRNs), miRNAs function in a switch-like manner whereby their expression and activity elicit a transition from one stable pattern of gene expression to a distinct, equally stable pattern required to define a nascent cell fate. While the importance of miRNAs that function in this capacity are clear, we have less of an understanding of the cellular factors and mechanisms that ensure the robustness of this form of regulatory bistability. In a screen to identify suppressors of temporal patterning phenotypes that result from ineffective miRNA-mediated target repression, we identified pqn-59, an ortholog of human UBAP2L, as a novel factor that antagonizes the activities of multiple heterochronic miRNAs. Specifically, we find that depletion of pqn-59 can restore normal development in animals with reduced lin-4 and let-7-family miRNA activity. Importantly, inactivation of pqn-59 is not sufficient to bypass the requirement of these regulatory RNAs within the heterochronic GRN. The pqn-59 gene encodes an abundant, cytoplasmically-localized, unstructured protein that harbors three essential "prion-like" domains. These domains exhibit LLPS properties in vitro and normally function to limit PQN-59 diffusion in the cytoplasm in vivo. Like human UBAP2L, PQN-59's localization becomes highly dynamic during stress conditions where it re-distributes to cytoplasmic stress granules and is important for their formation. Proteomic analysis of PQN-59 complexes from embryonic extracts indicates that PQN-59 and human UBAP2L interact with orthologous cellular components involved in RNA metabolism and promoting protein translation and that PQN-59 additionally interacts with proteins involved in transcription and intracellular transport. Finally, we demonstrate that pqn-59 depletion reduces protein translation and also results in the stabilization of several mature miRNAs (including those involved in temporal patterning). These data suggest that PQN-59 may ensure the bistability of some GRNs that require miRNA functions by promoting miRNA turnover and, like UBAP2L, enhancing protein translation.
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Affiliation(s)
- Colleen Carlston
- Cold Spring Harbor Laboratory, Cold Spring Harbor, New York, United States of America
| | - Robin Weinmann
- Cold Spring Harbor Laboratory, Cold Spring Harbor, New York, United States of America
| | - Natalia Stec
- Cold Spring Harbor Laboratory, Cold Spring Harbor, New York, United States of America
| | - Simona Abbatemarco
- Department of Cellular Physiology and Metabolism, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Francoise Schwager
- Department of Cellular Physiology and Metabolism, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Jing Wang
- Cold Spring Harbor Laboratory, Cold Spring Harbor, New York, United States of America
| | - Huiwu Ouyang
- Cold Spring Harbor Laboratory, Cold Spring Harbor, New York, United States of America
| | - Collin Y. Ewald
- Laboratory of Extracellular Matrix Regeneration, Institute of Translational Medicine, Department of Health Sciences and Technology, ETH Zürich, Schwerzenbach, Switzerland
| | - Monica Gotta
- Department of Cellular Physiology and Metabolism, Faculty of Medicine, University of Geneva, Geneva, Switzerland
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Dolicka D, Foti M, Sobolewski C. The Emerging Role of Stress Granules in Hepatocellular Carcinoma. Int J Mol Sci 2021; 22:ijms22179428. [PMID: 34502337 PMCID: PMC8430939 DOI: 10.3390/ijms22179428] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 08/24/2021] [Accepted: 08/26/2021] [Indexed: 12/12/2022] Open
Abstract
Stress granules (SGs) are small membrane-free cytosolic liquid-phase ordered entities in which mRNAs are protected and translationally silenced during cellular adaptation to harmful conditions (e.g., hypoxia, oxidative stress). This function is achieved by structural and functional SG components such as scaffold proteins and RNA-binding proteins controlling the fate of mRNAs. Increasing evidence indicates that the capacity of cells to assemble/disassemble functional SGs may significantly impact the onset and the development of metabolic and inflammatory diseases, as well as cancers. In the liver, the abnormal expression of SG components and formation of SG occur with chronic liver diseases, hepatocellular carcinoma (HCC), and selective hepatic resistance to anti-cancer drugs. Although, the role of SG in these diseases is still debated, the modulation of SG assembly/disassembly or targeting the expression/activity of specific SG components may represent appealing strategies to treat hepatic disorders and potentially cancer. In this review, we discuss our current knowledge about pathophysiological functions of SGs in HCC as well as available molecular tools and drugs capable of modulating SG formation and functions for therapeutic purposes.
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Wang Y, Chen Z, Jia C, Bai X, Jiang Y, Zou Z. Analysis of the mTOR Interactome using SILAC technology revealed NICE-4 as a novel regulator of mTORC1 activity. Life Sci 2021; 281:119745. [PMID: 34171383 DOI: 10.1016/j.lfs.2021.119745] [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: 01/06/2021] [Revised: 06/15/2021] [Accepted: 06/15/2021] [Indexed: 10/21/2022]
Abstract
The evolutionarily conserved mechanistic target of rapamycin (mTOR) forms two functionally distinct complexes, -the mTOR complex 1 (mTORC1) and mTOR complex 2 (mTORC2)-which differ in their subunit composition. Although the function of mTORC1 has been studied extensively, the interaction between mTORC1 and the ubiquitin-proteasome system (UPS) remains unclear. To facilitate a thorough understanding of the mechanismby which UPS regulates mTORC1 activity, steady isotope labeling with amino acids in cell culture (SILAC) technology was used to screen for potential mTORC1-interacting UPS members. Fourteen previously unknown proteins bound to mTOR in HEK293 cells with a SILAC ratio (heavy/light, H/L) above 2, five of which are components of the UPS. Subsequent immunoprecipitation analysis confirmed that ubiquitin-relevant protein 2-like (UBAP2L, also known as NICE-4) binds to both mTOR and Raptor, but not Rictor, suggesting that NICE-4 specifically interacts with mTORC1, but not mTORC2. Interestingly, NICE-4 is essential for basic mTORC1 activity in both HeLa cancer cells and HEK293 cells. In addition, NICE-4 depletion markedly suppressed proliferation of both HeLa and HEK293 cells as well as survival of HeLa cells. Collectively, these results revealed the identity of novel mTOR-interacting UPS proteins and established NICE-4 as a critical UPS member that maintains mTORC1 activity.
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Affiliation(s)
- Yun Wang
- Department of Cell Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, Guangdong, China.
| | - Zhenguo Chen
- Department of Cell Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, Guangdong, China.
| | - Chunhong Jia
- Department of Cell Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, Guangdong, China
| | - Xiaochun Bai
- Department of Cell Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, Guangdong, China.
| | - Yu Jiang
- Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, PA 15213, USA.
| | - Zhipeng Zou
- Department of Cell Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, Guangdong, China.
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Vigodner M, Lucas B, Kemeny S, Schwartz T, Levy R. Identification of sumoylated targets in proliferating mouse spermatogonia and human testicular seminomas. Asian J Androl 2020; 22:569-577. [PMID: 32217837 PMCID: PMC7705977 DOI: 10.4103/aja.aja_11_20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Accepted: 01/17/2020] [Indexed: 11/19/2022] Open
Abstract
Spermatogenesis is regulated by a complex network of posttranslation modifications. Sumoylation (a modification by small ubiquitin-like modifiers, or SUMO proteins) was identified as an important cellular event in different cell types. SUMO proteins are highly expressed in the testis, and their role during spermatogenesis has begun to be elucidated. Given the important role of sumoylation in the regulation of mitosis and cancer progression in other tissues, the aim of the current study was to identify the targets of SUMO in proliferating mouse spermatogonia and human seminoma tissues and to initially examine the level of sumoylation in relation to the proliferative activity of the tissues. Using freshly purified spermatogonia and C18-4 spermatogonia cell line, mass spectrometry analysis identified several SUMO targets implicated into the proliferation of spermatogonia (such as heat shock protein 60 [HSP60] and prohibitin). Tissue array and western blot approaches showed that SUMO expression is a prominent feature of human seminomas and that the proliferative activity of the tumor tissues was positively correlated with the level of SUMO expression. Downregulation of sumoylation with si-RNA was not sufficient to significantly affect the proliferation of C18-4 spermatogonia; however, SUMO overexpression increased the proliferation rate of the cells. These data suggest that cells are more sensitive to an elevated level of SUMO, and that this situation may lead to an upregulated cellular proliferation and, possibly, cancer. Mass spectrometry analysis identified around a hundred SUMO targets in seminoma samples. Notably, many of the identified proteins (such as proliferating cell nuclear antigen [PCNA], DNA topoisomerase 2-alpha [Top2A], prohibitin, 14-3-3 protein, and others) were implicated in oncogenic transformation and cancer progression.
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Affiliation(s)
- Margarita Vigodner
- Department of Biology, Stern College, Yeshiva University, New York, NY 10016, USA
- Department of Developmental and Molecular Biology, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Benjamin Lucas
- Department of Biology, Stern College, Yeshiva University, New York, NY 10016, USA
| | - Stav Kemeny
- Department of Biology, Stern College, Yeshiva University, New York, NY 10016, USA
| | - Tamar Schwartz
- Department of Biology, Stern College, Yeshiva University, New York, NY 10016, USA
| | - Rebecca Levy
- Department of Biology, Stern College, Yeshiva University, New York, NY 10016, USA
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Yoshida K, Kajiyama H, Inami E, Tamauchi S, Ikeda Y, Yoshikawa N, Nishino K, Utsumi F, Niimi K, Suzuki S, Shibata K, Nawa A, Kikkawa F. Clinical Significance of Ubiquitin-associated Protein 2-like in Patients With Uterine Cervical Cancer. In Vivo 2020; 34:109-116. [PMID: 31882469 DOI: 10.21873/invivo.11751] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 11/03/2019] [Accepted: 11/05/2019] [Indexed: 12/29/2022]
Abstract
BACKGROUND Ubiquitin-associated protein 2-like (UBAP2L) has been demonstrated to be associated with the progression of multiple types of cancer. However, the function of UBAP2L in uterine cervical cancer remains unclear. MATERIALS AND METHODS Between 2005 and 2015, 84 patients who underwent surgery were included in this study. The patients were stratified into two groups on the basis of immunohistochemical staining for UBAP2L, and survival analysis was performed. Moreover, loss-of-function analysis was performed using the cervical cancer cell lines CaSki and SiHa. RESULTS Based on immunohistochemistry, the overall survival in patients with low UBAP2L expression was significantly longer than that of those with high UBAP2L expression (p=0.045). The in vitro experiment revealed that knockdown of UBAP2L remarkably inhibited cell proliferation in both live cell imaging and the MTS assay. CONCLUSION Patients with high UBAP2L expression had unfavorable prognosis and UBAP2L appears to play an important role in proliferation.
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Affiliation(s)
- Kosuke Yoshida
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hiroaki Kajiyama
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Eri Inami
- Bell Research Center for Reproductive Health and Cancer, Nagoya, Japan
| | - Satoshi Tamauchi
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yoshiki Ikeda
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Nobuhisa Yoshikawa
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kimihiro Nishino
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Fumi Utsumi
- Department of Obstetrics and Gynecology, Fujita Health University Bantane Hospital, Nagoya, Japan
| | - Kaoru Niimi
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Shiro Suzuki
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kiyosumi Shibata
- Department of Obstetrics and Gynecology, Fujita Health University Bantane Hospital, Nagoya, Japan
| | - Akihiro Nawa
- Bell Research Center for Reproductive Health and Cancer, Nagoya, Japan
| | - Fumitaka Kikkawa
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, Nagoya, Japan
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UBAP2L arginine methylation by PRMT1 modulates stress granule assembly. Cell Death Differ 2019; 27:227-241. [PMID: 31114027 PMCID: PMC7205891 DOI: 10.1038/s41418-019-0350-5] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 04/28/2019] [Accepted: 05/03/2019] [Indexed: 02/06/2023] Open
Abstract
Stress granules (SGs) are discrete assemblies of stalled messenger ribonucleoprotein complexes (mRNPs) that form when eukaryotic cells encounter environmental stress. RNA-binding proteins (RBPs) mediate their condensation by recruiting populations of mRNPs. However, the cellular and molecular mechanisms underlying the role of ubiquitin-associated protein 2-like (UBAP2L) in the regulation of SG dynamics remain elusive. Here, we show that UBAP2L is required for both SG assembly and disassembly. UBAP2L overexpression nucleated SGs under stress-null conditions. The UBAP2L Arg–Gly–Gly (RGG) motif was required for SG competence, and mediated the recruitment of SG components, including mRNPs, RBPs, and ribosomal subunits. The domain of unknown function (DUF) of UBAP2L-mediated interaction with ras GTPase-activating protein-binding protein (G3BP)1/2, and its deletion caused the cytoplasmic–nuclear transport of UBAP2L and G3BP1/2, thereby compromising SG formation. The protein arginine methyltransferase PRMT1 asymmetrically dimethylated UBAP2L by targeting the RGG motif. Increased arginine methylation blocked, whereas its decrease enhanced UBAP2L interactions with SG components, ablating and promoting SG assembly, respectively. These results provide new insights into the mechanisms by which UBAP2L regulates SG dynamics and RNA metabolism.
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Lv Q, Wang G, Zhang Y, Han X, Li H, Le W, Zhang M, Ma C, Wang P, Ding Q. FABP5 regulates the proliferation of clear cell renal cell carcinoma cells via the PI3K/AKT signaling pathway. Int J Oncol 2019; 54:1221-1232. [PMID: 30968158 PMCID: PMC6411348 DOI: 10.3892/ijo.2019.4721] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Accepted: 01/30/2019] [Indexed: 01/15/2023] Open
Abstract
Clear cell renal cell carcinoma (ccRCC) has been associated with one of the highest mortality rates among all cancers. Fatty acid binding proteins (FABPs) are 14‑15 kDa proteins that are highly abundant in the cytosol of most tissues. FABP5, a member of the FABP family, has been observed to promote tumor cell growth in numerous cancer types. In order to investigate the function of FABP5 in ccRCC cells in the present study, RNA sequencing data from The Cancer Genome Atlas were analyzed to determine the expression levels of FABP5 in ccRCC patient samples. Survival and Cox regression analyses were performed to measure the association between FABP5 expression and clinicopathological features of patients with ccRCC. Subsequent in vitro experiments downregulated or overexpressed FABP5 in Caki‑1 and 786O ccRCC cells using lentiviral vectors to evaluate cell proliferation ability, and a xenograft transplantation model was established to examine the effect of FABP5 on tumorigenesis in vivo. The results demonstrated that FABP5 expression was significantly upregulated in samples from patients with ccRCC when compared with normal tissue samples. High FABP5 expression was also significantly correlated with tumor and metastasis classifications and predicted poor survival in patients with ccRCC. In ccRCC cells, silencing of FABP5 significantly inhibited cell proliferation, while overexpression of FABP5 promoted cell proliferation when compared to the respective controls. In addition, treatment with the phosphatidylinositol‑4,5‑bisphosphate 3‑kinase (PI3K)/AKT inhibitor, LY294002, attenuated the pro‑proliferative effects of exogenous FABP5 expression in Caki‑1 and 786O cells. This indicated that the PI3K/AKT signaling pathway may be partially involved in the FABP5‑mediated increase in ccRCC cell proliferation. Furthermore, FABP5 was observed to regulate tumor growth in nude mice in vivo. In conclusion, the results of the present study suggest that FABP5 may exert a pro‑proliferative role in ccRCC and may be associated with malignant progression and tumorigenesis.
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Affiliation(s)
- Qi Lv
- Imaging Department of Tongji Hospital, Medical School of Tongji University, Shanghai 200065, P.R. China
| | - Gangmin Wang
- Department of Urology, Huashan Hospital, Fudan University, Shanghai 200040, P.R. China
| | - Yinan Zhang
- Department of Urology, Shandong Province affiliated Hospital, Shandong University, Jinan, Shandong 250021, P.R. China
| | - Xiao Han
- Department of Human Anatomy, Medical School of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Haoming Li
- Department of Human Anatomy, Medical School of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Wei Le
- Imaging Department of Tongji Hospital, Medical School of Tongji University, Shanghai 200065, P.R. China
| | - Minguang Zhang
- Department of Urology, Huashan Hospital, Fudan University, Shanghai 200040, P.R. China
| | - Chunhui Ma
- Department of Orthopedic Surgery, Shanghai General Hospital, Shanghai Jiaotong University, Shanghai 200080, P.R. China
| | - Peijun Wang
- Imaging Department of Tongji Hospital, Medical School of Tongji University, Shanghai 200065, P.R. China
| | - Qiang Ding
- Department of Urology, Huashan Hospital, Fudan University, Shanghai 200040, P.R. China
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Ding H, Wen Z, Sun G. Silencing of Xeroderma Pigmentosum Group D Gene Promotes Hepatoma Cell Growth by Reducing P53 Expression. Med Sci Monit 2018; 24:8015-8021. [PMID: 30409962 PMCID: PMC6238547 DOI: 10.12659/msm.910944] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND This study investigated the effect of xeroderma pigmentosum group D (XPD) silencing on the growth of hepatoma cells and assessed the mechanisms. MATERIAL AND METHODS XPD gene was silenced by siRNA in hepatoma cells. The experiments were randomly divided into a control group, a liposome control group, a negative control (NC) group, an XPD siRNA group, and an XPD siRNA + P53 inhibitor group. 3-(4,5-Dimethylthiazol-2-yl)-2,5-Diphenyltetrazolium Bromide (MTT) was used to detect cell viability 24 h after gene silencing and treatments. Terminal deoxynucleotidyl transferases (TdT)-mediated dUTP nick-end labeling (TUNEL) and flow cytometry were used to detect apoptosis. Invasive ability was detected by Transwell assay. Additionally, the expression of mouse double-minute 2 homolog (Mdm2), mouse double-minute 4 homolog (Mdm4), CyclinD1, P21, Bax, P53, C-sis, and Bcl-2 was detected by real-time polymerase chain reaction and Western blotting. RESULTS Compared with the NC group, XPD siRNA significantly reduced XPD expression at both mRNA and protein levels. XPD siRNA significantly promoted cell proliferation, reduced apoptosis, and promoted cell invasive ability. Expression of CyclinD1, Bcl-2, and C-sis increased significantly after XPD silencing, while the expression of P21, Mdm2, Mdm4, Bax, and P53 significantly decreased (vs. NC, P<0.05). Importantly, P53 inhibitor (1 μM bpV) further enhanced the effect of XPD silencing (vs. XPD silencing, P<0.05). CONCLUSIONS Our data revealed that XPD silencing promoted growth of hepatoma cells by reducing P53 expression.
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Affiliation(s)
- Hao Ding
- Department of Gastroenterology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China (mainland)
| | - Zhili Wen
- Department of Gastroenterology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China (mainland)
| | - Guofang Sun
- Department of Electrocardiogram Diagnosis, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China (mainland)
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Li Q, Wang W, Hu YC, Yin TT, He J. Knockdown of Ubiquitin Associated Protein 2-Like (UBAP2L) Inhibits Growth and Metastasis of Hepatocellular Carcinoma. Med Sci Monit 2018; 24:7109-7118. [PMID: 30291221 PMCID: PMC6284357 DOI: 10.12659/msm.912861] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND The aim of this study was to explore the influence of ubiquitin associated protein 2-like (UBAP2L) on the growth and metastasis of hepatocellular carcinoma (HCC) and its potential underlying mechanism. MATERIAL AND METHODS UBAP2L gene was knocked down in SMMC-7721 by RNA interference and cell function experiments were performed. A subcutaneous xenograft tumor model was constructed to examine the effect of UBAP2L silence on HCC growth. Finally, the whole genomic microarrays were used to screen the potential mechanism of UBAP2L in regulating the biological function of HCC. RESULTS Compared with those in the control group, the cell proliferation and clone formation were significantly reduced, cell cycle was arrested in G2/M phase, the number of apoptotic cells was remarkably increased, and the abilities of vascular formation and cell migration and metastasis were dramatically weakened in the shUBAP2L group (All P<0.05). UBAP2L knockdown significantly suppressed the tumor growth of HCC in vivo. Moreover, a total of 320 genes changed significantly after UBAP2L knockdown, among which, 159 genes were upregulated and 161 genes were downregulated. Then, gene enrichment analysis revealed that PI3K/AKT and P53 signal pathway were the most significant in the top 10 enrichments. Finally, Western blot analysis verified that UBAP2L knockdown caused the increase of P21 and PTEN and decrease of CDK1, CCNB1, p-PI3K, and p-AKT. CONCLUSIONS UBAP2L plays an oncogenic role in HCC, and knockdown of its expression significantly inhibits HCC growth and metastasis, which may be related to the regulation of PI3K/AKT and P53 signaling pathways by UBAP2L.
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Affiliation(s)
- Qian Li
- Department of Pathology, First Affiliated Hospital of University of Science and Technology of China, Hefei, Anhui, China (mainland).,The Provincial Hospital of Anhui Medical University, Hefei, Anhui, China (mainland)
| | - Wei Wang
- Department of Medical Oncology, First Affiliated Hospital of University of Science and Technology of China, Hefei, Anhui, China (mainland)
| | - Yu-Chen Hu
- Department of Pathology, First Affiliated Hospital of University of Science and Technology of China, Hefei, Anhui, China (mainland).,The Provincial Hospital of Anhui Medical University, Hefei, Anhui, China (mainland)
| | - Tian-Tian Yin
- Department of Pathology, First Affiliated Hospital of University of Science and Technology of China, Hefei, Anhui, China (mainland).,The Provincial Hospital of Anhui Medical University, Hefei, Anhui, China (mainland)
| | - Jie He
- Department of Pathology, First Affiliated Hospital of University of Science and Technology of China, Hefei, Anhui, China (mainland)
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Li MF, Zeng JJ, Pan AP, Lin YH, Lin HS, Zhang RZ, Yang L, Zhang Y, Dang YW, Chen G. Investigation of miR-490-3p Expression in Hepatocellular Carcinoma Based on Reverse Transcription-Polymerase Chain Reaction (RT-qPCR) and a Meta-Analysis of 749 Cases. Med Sci Monit 2018; 24:4914-4925. [PMID: 30007991 PMCID: PMC6067044 DOI: 10.12659/msm.908492] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Background miR-490-3p could play vital roles in multiple cancers. However, the role of miR-490-3p in hepatocellular carcinoma (HCC) remains uncertain. In this study, we sought to explore the underlying role of miR-490-3p in HCC. Material/Methods In this study, we explored the clinical role of miR-490-3p in HCC via quantitative reverse transcription–polymerase chain reaction (RT-qPCR) and The Cancer Genome Atlas (TCGA) database. Then, a meta-analysis was performed to evaluate the expression trend and diagnostic value of miR-490-3p in HCC. Furthermore, 12 miRNA prediction algorithms were applied to predict the potential target genes of miR-490-3p. The differentially expressed genes in HCC in the Gene Expression Profiling Interactive Analysis (GEPIA) database were also selected. Additionally, bioinformatics analyses were utilized to investigate the possible functions and pathways of the target genes. Results miR-490-3p was clearly down-regulated in HCC based on RT-qPCR (P=0.002). Consistent with the results of RT-qPCR, miR-490 was more highly expressed in normal liver tissue than in HCC (P<0.001). Additionally, the meta-analysis confirmed the results from RT-qPCR and TCGA. Furthermore, based on the prediction algorithms and GEPIA, a total of 113 genes were selected. According to the bioinformatics analyses, we found that the most remarkably enriched functional terms included protein transport, poly(A) RNA binding, and intracellular organelle part. Additionally, the miR-490-3p target genes were significantly related to the pathways in cancer. Conclusions We found that miR-490-3p is down-regulated in HCC and is related to genes that have potential tumoral functions. However, the exact mechanism should be confirmed by functional experiments.
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Affiliation(s)
- Ming-Fen Li
- Clinical Laboratory, First Affiliated Hospital of the University of Chinese Medicine in Guangxi, Nanning, Guangxi, China (mainland)
| | - Jing-Jing Zeng
- Department of Pathology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China (mainland)
| | - Ai-Ping Pan
- Clinical Laboratory, First Affiliated Hospital of the University of Chinese Medicine in Guangxi, Nanning, Guangxi, China (mainland)
| | - Ying-Hui Lin
- Clinical Laboratory, First Affiliated Hospital of the University of Chinese Medicine in Guangxi, Nanning, Guangxi, China (mainland)
| | - Hong-Sheng Lin
- Clinical Laboratory, First Affiliated Hospital of the University of Chinese Medicine in Guangxi, Nanning, Guangxi, China (mainland)
| | - Rong-Zhen Zhang
- Department of Hepatology, First Affiliated Hospital of the University of Chinese Medicine in Guangxi, Nanning, Guangxi, China (mainland)
| | - Lei Yang
- Clinical Laboratory, First Affiliated Hospital of the University of Chinese Medicine in Guangxi, Nanning, Guangxi, China (mainland)
| | - Yu Zhang
- Department of Pathology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China (mainland)
| | - Yi-Wu Dang
- Department of Pathology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China (mainland)
| | - Gang Chen
- Department of Pathology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China (mainland)
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Zhang MJ, Hong YY, Li N. Overexpression of Kin of IRRE-Like Protein 1 (KIRREL) in Gastric Cancer and Its Clinical Prognostic Significance. Med Sci Monit 2018; 24:2711-2719. [PMID: 29717104 PMCID: PMC5952805 DOI: 10.12659/msm.910386] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Background The aim of this study was to examine the expression level of IRRE-like protein 1 (KIRREL) in gastric cancer (GC) and to explore its prognostic significance. Material/Methods Bioinformatics methods were used to predict the differential expression levels of KIRREL mRNA in GC and normal gastric tissues by mining cancer-related databases (TCGA and Oncomine). Immunohistochemistry was done to verify the KIRREL protein expression levels in 71 cases of GC tissues combined with matched normal tissues. The relationship between clinicopathologic parameters and KIRREL differential expression levels in GC was investigated by the chi-square test. Kaplan-Meier univariate and Cox multivariate survival analyses were performed to explore the prognostic significance of KIRREL expression in GC patients. Results TCGA and GEO data analyses showed that KIRREL mRNA expression level was remarkably higher in GC than that in normal gastric tissues (both P<0.05). KIRREL mRNA levels were dramatically increased from stage I to stage IV (P=0.037). Immunohistochemical results showed that the high positive rate of KIRREL staining in GC was 61.97% (44/71). Moreover, GC patients with KIRREL mRNA or protein high levels had significantly shorter overall survival times than those with KIRREL mRNA or low protein levels (All P<0.05). Additionally, Cox multivariate survival analysis revealed that KIRREL differential expression levels (low vs. high) were the only independent parameter predicting the prognosis of GC patients (P=0.000). Conclusions KIRREL was overexpressed in GC and the overexpression of KIRREL could serve as an independent predictor of poor prognosis in GC patients.
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Affiliation(s)
- Ming-Jun Zhang
- Department of Oncology, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China (mainland)
| | - Yan-Yan Hong
- Department of Oncology, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China (mainland)
| | - Na Li
- Department of Oncology, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China (mainland)
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Wang X, Zhang Q, Wang Y, Zhuang H, Chen B. Clinical Significance of Ubiquitin Specific Protease 7 (USP7) in Predicting Prognosis of Hepatocellular Carcinoma and its Functional Mechanisms. Med Sci Monit 2018; 24:1742-1750. [PMID: 29574466 PMCID: PMC5882160 DOI: 10.12659/msm.909368] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Hepatocellular carcinoma (HCC) accounts for one of the most prevalent cancer types in the world. The ubiquitin specific protease 7 (USP7), a kind of deubiquitylating enzyme, has been reported to play multifaceted roles in different tumor types. The aim of this study was to investigate the expression and function of USP7 in HCC. MATERIAL AND METHODS Immunohistochemical staining and quantitative PCR were performed to explore the expression of USP7 in both HCC tissues and adjacent normal liver tissues. Chi-square test, univariate analysis, and multivariate analysis were conducted to statistically evaluate the clinical significance of USP7 in HCC. Proliferation, migration, and invasion capacities of HCC cells were assessed after overexpressing or silencing USP7. RESULTS Both the RNA and protein levels of USP7 were upregulated in HCC tissues compared to normal liver tissues. High expression of USP7 was correlated with advanced tumor stage and poor overall survival. Moreover, USP7 was identified as a novel independent prognostic factor for HCC patients. Cellular studies showed that USP7 could enhance the proliferation, migration, and invasion capacities of HCC cells, thereby promoting tumor progression. CONCLUSIONS High expression of USP7 is frequent in HCC tissues, which promotes tumor proliferation and invasion, and is correlated with a poor overall survival. Targeting USP7 may be a novel direction for the drug development of HCC therapy.
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Affiliation(s)
- Xujing Wang
- Department of Hepatopancreatobiliary Surgery, East Hospital Affiliated to Tongji University in Shanghai, Shanghai, China (mainland)
| | - Qiqi Zhang
- Department of Hepatopancreatobiliary Surgery, East Hospital Affiliated to Tongji University in Shanghai, Shanghai, China (mainland)
| | - Yongkun Wang
- Department of Hepatopancreatobiliary Surgery, East Hospital Affiliated to Tongji University in Shanghai, Shanghai, China (mainland)
| | - Huiren Zhuang
- Department of Hepatopancreatobiliary Surgery, East Hospital Affiliated to Tongji University in Shanghai, Shanghai, China (mainland)
| | - Bo Chen
- Department of Hepatopancreatobiliary Surgery, East Hospital Affiliated to Tongji University in Shanghai, Shanghai, China (mainland)
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Wu PL, He YF, Yao HH, Hu B. Martrilin-3 (MATN3) Overexpression in Gastric Adenocarcinoma and its Prognostic Significance. Med Sci Monit 2018; 24:348-355. [PMID: 29343680 PMCID: PMC5784332 DOI: 10.12659/msm.908447] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND The aim of this study was to investigate the expression level of martrilin-3 (MATN3) in patients with gastric adenocarcinoma (GAC) and to investigate the prognostic significance of MATN3. MATERIAL AND METHODS Gene Expression Omnibus (GEO) and The Cancer Genome Atlas (TCGA) data were used to predict the expression and prognostic value of MATN3 mRNA in GAC patients. Seventy-six GAC patients had GAC tissue samples and paired adjacent normal tissue samples collected retrospectively to examine the MATN3 protein expression level by immunohistochemical staining. Furthermore, Kaplan-Meier univariate and Cox multivariate analyses were used to verify the correlation between MATN3 expression and clinicopathological parameters of GAC patients and the prognostic significance of MATN3. RESULTS The GEO and TCGA data predicted that MATN3 mRNA levels were significantly higher in GAC tissue compared to normal tissue (all p<0.05). Further survival analyses showed that GAC patients with high mRNA expression of MATN3 had significantly lower disease-free survival (DFS) and overall survival (OS) time than those with low mRNA expression of MATN3 (all p<0.05). Subsequent immunohistochemical staining results confirmed that the MATN3 protein levels in GAC tissues were highly expressed (p=0.000) compared to normal tissues. In addition, GAC patients with high protein expression of MATN3 had remarkably decreased OS compared to patients with low protein expression of MATN3 (p=0.000). Univariate and multivariate survival analyses revealed that MATN3 high expression could be used as an independent predictor of poor prognosis in GAC patients (all p=0.000). CONCLUSIONS This study confirmed that MATN3 protein was highly expressed in GAC patients, and MATN3 overexpression could be used as an independent predictor of poor prognosis in GAC patients.
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Affiliation(s)
- Ping-Li Wu
- Department of Medical Oncology, Anhui Provincial Hospital, Anhui Medical University, Hefei, Anhui, China (mainland).,Department of Medical Oncology, Suixi County Hospital, Huaibei, Anhui, China (mainland)
| | - Yi-Fu He
- Department of Medical Oncology, Anhui Provincial Hospital, Anhui Medical University, Hefei, Anhui, China (mainland)
| | - Han-Hui Yao
- Department of General Surgery, Anhui Provincial Hospital, Anhui Medical University, Hefei, Anhui, China (mainland)
| | - Bing Hu
- Department of Medical Oncology, Anhui Provincial Hospital, Anhui Medical University, Hefei, Anhui, China (mainland)
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Qi W, Shao F, Huang Q. Expression of Coiled-Coil Domain Containing 34 (CCDC34) and its Prognostic Significance in Pancreatic Adenocarcinoma. Med Sci Monit 2017; 23:6012-6018. [PMID: 29257799 PMCID: PMC5745713 DOI: 10.12659/msm.907951] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Accepted: 11/27/2017] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Coiled-coil domain containing 34 (CCDC34) promotes cell proliferation and invasive properties in human cancer. The aim of this study was to compare the expression of CCDC34 in pancreatic adenocarcinoma with normal pancreatic tissue, and to evaluate the prognostic significance of CCDC34 expression in patients with pancreatic adenocarcinoma, using bioinformatics. MATERIAL AND METHODS The expression and prognostic value of CCDC34 were initially predicted using Oncomine and The Cancer Genome Atlas (TCGA) databases. Pancreatic adenocarcinoma tissue samples (N=90) and matched normal pancreatic tissues (N=90) were studied using immunohistochemistry to measure CCDC34 protein expression levels. Univariate Kaplan-Meier, and multivariate Cox analysis were used to determine the prognostic role of CCDC34 expression. RESULTS Oncomine and TCGA databases predicted that CCDC34 mRNA expression levels were significantly increased in pancreatic adenocarcinoma compared with normal pancreatic tissues (P<0.05), and that patients with increased CCDC34 mRNA expression levels had significantly lower overall survival (OS) (P=0.031). Immunohistochemistry showed that expression levels of CCDC34 protein in pancreatic adenocarcinoma were significantly increased, compared with normal pancreas (P=0.000). Patients with pancreatic adenocarcinoma with increased expression of tissue CCDC34 had significantly reduced OS compared with patients with low expression (P=0.000). Univariate and multivariate survival analysis showed that increased expression of CCDC34 was an independent predictor of poor prognosis in patients with pancreatic adenocarcinoma (all, P=0.000). CONCLUSIONS Compared with normal pancreas, CCDC34 expression was significantly increased in pancreatic adenocarcinoma, and increased CCDC34 expression was an independent predictor of poor patient prognosis.
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Affiliation(s)
- Wei Qi
- Medical College of Shandong University, Jinan, Shandong, P.R. China
- Department of General Surgery, Anhui Provincial Hospital, Anhui Medical University, Hefei, Anhui, P.R. China
| | - Feng Shao
- Department of General Surgery, Anhui Provincial Hospital, Anhui Medical University, Hefei, Anhui, P.R. China
| | - Qiang Huang
- Department of General Surgery, Anhui Provincial Hospital, Anhui Medical University, Hefei, Anhui, P.R. China
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