scholarly journals Chorionic Villous Mesenchymal Stem Cells Derived Exosomes Deliver miR-135b-5p to Trophoblasts, Promoting their Proliferation and Invasion by Targeting TXNIP via β-Catenin Pathway

2020 ◽  
Author(s):  
Yijing Chu ◽  
Yan Zhang ◽  
Guoqiang Gao ◽  
Jun Zhou ◽  
Yang Lv ◽  
...  
Keyword(s):  
Stem Cells ◽  
Mesenchymal Stem Cells ◽  
Tissue Injury ◽  
Luciferase Reporter ◽  
Rna Seq ◽  
Qrt Pcr ◽  
Reporter Assays ◽  
Pcr Assays ◽  
Proliferation And Invasion

Abstract Background: Human chorionic villous mesenchymal stem cells (CV-MSCs) are found to be a promising and effective treatment for tissue injury. Trophoblast dysfunction during pregnancies is significantly involved in the pathogenesis of preeclampsia (PE). This work was to understand how CV-MSCs regulated trophoblast function. Methods: In this study, we treated trophoblasts with CV-MSC-derived exosomes and RNA-seq analysis was used to understand the changes in trophoblasts. We examined the levels of TXNIP and β-catenin in trophoblasts by immunohistochemistry, western blot and qRT-PCR assays. Luciferase reporter assays and qRT-PCR assays were used to understand the role of miR135b-5p in the effects of CV-MSC-derived exosomes. The growth and invasion of trophoblasts was evaluated with the CCK-8 and transwell assays. Results: The treatment markedly enhanced the trophoblast proliferation and invasion. Furthermore, a significant decrease of TXNIP expression and inactivation of the β-catenin pathway in CV-MSCs exosomes-treated trophoblasts was observed. Consistent with these findings, TXNIP inhibition exhibited the same effect of promoting trophoblast proliferation and invasion as induced by CV-MSC-derived exosomes, also with the accompaniment of inactivation of β-catenin pathway. In addition, overexpression of TXNIP activated the β-catenin pathway in trophoblasts, and reduced the proliferation and invasion of trophoblasts. Importantly, miR135b-5p was found to be highly expressed in CV-MSC exosomes and interact with TXNIP. The miR-135b-5p overexpression significantly elevated the proliferation and invasion of trophoblasts, which could be attenuated by TXNIP overexpression. Conclusion: Our results suggest that TXNIP-dependent β-catenin pathway inactivation mediated by miR135b-5p which is delivered by CV-MSC-derived exosomes could promote the proliferation and invasion of trophoblasts.

Overexpression of Pygo2 Increases Differentiation of Human Umbilical Cord Mesenchymal Stem Cells into Cardiomyocyte-like Cells

2020 ◽  
Vol 20 (4) ◽  
pp. 318-324 ◽  
Author(s):  
Lei Yang ◽  
Shuoji Zhu ◽  
Yongqing Li ◽  
Jian Zhuang ◽  
Jimei Chen ◽  
...  
Keyword(s):  
Stem Cells ◽  
Mesenchymal Stem Cells ◽  
Umbilical Cord ◽  
Heart Function ◽  
Critical Role ◽  
Human Umbilical Cord ◽  
Stem Cell Markers ◽  
Quantitative Real Time Pcr ◽  
Qrt Pcr

Background: Our previous studies have shown that Pygo (Pygopus) in Drosophila plays a critical role in adult heart function that is likely conserved in mammals. However, its role in the differentiation of human umbilical cord mesenchymal stem cells (hUC-MSCs) into cardiomyocytes remains unknown. Objective: To investigate the role of pygo2 in the differentiation of hUC-MSCs into cardiomyocytes. Methods: Third passage hUC-MSCs were divided into two groups: a p+ group infected with the GV492-pygo2 virus and a p− group infected with the GV492 virus. After infection and 3 or 21 days of incubation, Quantitative real-time PCR (qRT-PCR) was performed to detect pluripotency markers, including OCT-4 and SOX2. Nkx2.5, Gata-4 and cTnT were detected by immunofluorescence at 7, 14 and 21 days post-infection, respectively. Expression of cardiac-related genes—including Nkx2.5, Gata-4, TNNT2, MEF2c, ISL-1, FOXH1, KDR, αMHC and α-Actin—were analyzed by qRT-PCR following transfection with the virus at one, two and three weeks. Results : After three days of incubation, there were no significant changes in the expression of the pluripotency stem cell markers OCT-4 and SOX2 in the p+ group hUC-MSCs relative to controls (OCT-4: 1.03 ± 0.096 VS 1, P > 0.05, SOX2: 1.071 ± 0.189 VS 1, P > 0.05); however, after 21 days, significant decreases were observed (OCT-4: 0.164 ± 0.098 VS 1, P < 0.01, SOX2: 0.209 ± 0.109 VS 1, P < 0.001). Seven days following incubation, expression of mesoderm specialisation markers, such as Nkx2.5, Gata-4, MEF2c and KDR, were increased; at 14 days following incubation, expression of cardiac genes, such as Nkx2.5, Gata-4, TNNT2, MEF2c, ISL-1, FOXH1, KDR, αMHC and α-Actin, were significantly upregulated in the p+ group relative to the p− group (P < 0.05). Taken together, these findings suggest that overexpression of pygo2 results in more hUCMSCs gradually differentiating into cardiomyocyte-like cells. Conclusion: We are the first to show that overexpression of pygo2 significantly enhances the expression of cardiac-genic genes, including Nkx2.5 and Gata-4, and promotes the differentiation of hUC-MSCs into cardiomyocyte-like cells.

scholarly journals Intercellular mitochondria trafficking highlighting the dual role of mesenchymal stem cells as both sensors and rescuers of tissue injury

Cell Cycle ◽  
2018 ◽  
Vol 17 (6) ◽  
pp. 712-721 ◽  
Author(s):  
Anne-Marie Rodriguez ◽  
Jean Nakhle ◽  
Emmanuel Griessinger ◽  
Marie-Luce Vignais
Keyword(s):  
Stem Cells ◽  
Mesenchymal Stem Cells ◽  
Tissue Injury ◽  
Dual Role

scholarly journals MicroRNA-16, via FGF2 Regulation of the ERK/MAPK Pathway, Is Involved in the Magnesium-Promoted Osteogenic Differentiation of Mesenchymal Stem Cells

2020 ◽  
Vol 2020 ◽  
pp. 1-14 ◽  
Author(s):  
Hong Qi ◽  
Yang Liu ◽  
Lu Wu ◽  
Su Ni ◽  
Jing Sun ◽  
...  
Keyword(s):  
Stem Cells ◽  
Mesenchymal Stem Cells ◽  
Osteogenic Differentiation ◽  
Mapk Pathway ◽  
Luciferase Reporter ◽  
Erk Mapk ◽  
Marrow Mesenchymal Stem Cells ◽  
Elevated Expression ◽  
Reporter Assays ◽  
Induced Changes

microRNAs (miRNAs) participate in the osteogenic differentiation of bone marrow mesenchymal stem cells (BMSCs). However, few reports have discussed the effect of miRNAs on the magnesium chloride (MgCl2)-induced promotion of osteogenic differentiation of BMSCs, a process involved in the healing of bone tissue. As determined in the present investigation, MgCl2 decreased miR-16 levels; increased levels of fibroblast growth factor 2 (FGF2), p-p38, and p-ERK; and promoted the osteogenic differentiation of BMSCs. Enhancement of miR-16 levels by an miR-16 mimic blocked these MgCl2-induced changes. Moreover, luciferase reporter assays confirmed that miR-16 binds to the 3′UTR region of FGF2 mRNA. Down-regulation of FGF2 blocked the MgCl2-induced increases of p-p38 and p-ERK and the promotion of the osteogenic differentiation of BMSCs. Furthermore, over-expression of miR-16 attenuated the MgCl2-induced overproduction of p-p38 and p-ERK1/2 and the high levels of osteogenic differentiation, effects that were reversed by elevated expression of FGF2. In summary, the present findings provide a mechanism by which miR-16 regulates MgCl2-induced promotion of osteogenic differentiation by targeting FGF2-mediated activation of the ERK/MAPK pathway.

Differential Expression Profiles of Long Noncoding RNA and mRNA of Osteogenically Differentiated Mesenchymal Stem Cells in Ankylosing Spondylitis

2016 ◽  
Vol 43 (8) ◽  
pp. 1523-1531 ◽  
Author(s):  
Zhongyu Xie ◽  
Jinteng Li ◽  
Peng Wang ◽  
Yuxi Li ◽  
Xiaohua Wu ◽  
...  
Keyword(s):  
Stem Cells ◽  
Mesenchymal Stem Cells ◽  
Ankylosing Spondylitis ◽  
Osteogenic Differentiation ◽  
Noncoding Rna ◽  
Bioinformatics Analysis ◽  
Expression Profiles ◽  
Differentially Expressed ◽  
Qrt Pcr ◽  
Pcr Assays

Objective.We previously demonstrated that mesenchymal stem cells (MSC) from patients with ankylosing spondylitis (AS; ASMSC) have a greater osteogenic differentiation capacity than MSC from healthy donors (HDMSC) and that this difference underlies the pathogenesis of pathological osteogenesis in AS. Here we compared expression levels of long noncoding RNA (lncRNA) and mRNA between osteogenically differentiated ASMSC and HDMSC and explored the precise mechanism underlying abnormal osteogenic differentiation in ASMSC.Methods.HDMSC and ASMSC were induced with osteogenic differentiation medium for 10 days. Microarray analyses were then performed to identify lncRNA and mRNA differentially expressed between HDMSC and ASMSC, which were then subjected to bioinformatics analysis and confirmed by quantitative real-time PCR (qRT-PCR) assays. In addition, coding-non-coding gene co-expression (CNC) networks were constructed to examine the relationships between the lncRNA and mRNA expression patterns.Results.A total of 520 lncRNA and 665 mRNA were differentially expressed in osteogenically differentiated ASMSC compared with HDMSC. Bioinformatics analysis revealed 64 signaling pathways with significant differences, including transforming growth factor-β signaling. qRT-PCR assays confirmed the reliability of the microarray data. The CNC network indicated that 4 differentially expressed lncRNA, including lnc-ZNF354A-1, lnc-LIN54-1, lnc-FRG2C-3, and lnc-USP50-2 may be involved in the abnormal osteogenic differentiation of ASMSC.Conclusion.Our study characterized the differential lncRNA and mRNA expression profiles of osteogenically differentiated ASMSC and identified 4 lncRNA that may participate in the abnormal osteogenic differentiation of ASMSC. These results provide insight into the pathogenesis of pathological osteogenesis in AS.

scholarly journals Role of MiR-98 and Its Underlying Mechanisms in Systemic Lupus Erythematosus

2018 ◽  
Vol 45 (10) ◽  
pp. 1397-1405 ◽  
Author(s):  
Lin Xie ◽  
Jinhua Xu
Keyword(s):  
T Cells ◽  
Lupus Erythematosus ◽  
Cd4 T Cells ◽  
Opposite Effect ◽  
Luciferase Reporter ◽  
Qrt Pcr ◽  
Fas Mrna ◽  
Reporter Assays ◽  
Underlying Mechanisms

Objective.T-lymphocyte apoptosis plays a critical role in the pathogenesis of systemic lupus erythematosus (SLE). However, the underlying regulatory mechanisms of apoptosis in SLE remain unclear. The aim of this study was to explore the role of miR-98 in SLE and its underlying mechanisms.Methods.Western blotting and quantitative reverse transcription PCR (qRT-PCR) were used to analyze miR-98 and Fas expression. Luciferase reporter assays were performed to identify miR-98 targets. To modify miRNA levels, miR-98 mimics and inhibitor were transfected into cells. A lentiviral construct was used to overexpress the level of Fas in SLE CD4+ T cells. Gene and protein expression were determined by qRT-PCR and Western blotting. Apoptosis levels were evaluated by annexin V staining and flow cytometry.Results.Compared to those of healthy donors, miR-98 was downregulated in SLE CD4+ T cells, whereas Fas mRNA and protein expression were upregulated. Upregulation of miR-98 by mimic transfection protected Jurkat cells against Fas-mediated apoptosis at both mRNA and protein levels, while miR-98 inhibitor induced the completely opposite effect. Luciferase reporter assays demonstrated that miR-98 directly targeted Fas mRNA. Further, miR-98 inhibitor induced apoptosis in primary healthy CD4+ T cells through the Fas-caspase axis, while upregulation of miR-98 in SLE CD4+ T cells led to the opposite effect.Conclusion.The current study revealed that downregulation of miR-98 induces apoptosis by modulating the Fas-mediated apoptotic signaling pathway in SLE CD4+ T cells. These results suggest that miR-98 might serve as a potential target for SLE treatment.

scholarly journals Obesity-Associated MiR-342-3p Promotes Adipogenesis of Mesenchymal Stem Cells by Suppressing CtBP2 and Releasing C/EBPα from CtBP2 Binding

2015 ◽  
Vol 35 (6) ◽  
pp. 2285-2298 ◽  
Author(s):  
Liang Wang ◽  
Lei Xu ◽  
Min Xu ◽  
Guoqiang Liu ◽  
Jian Xing ◽  
...  
Keyword(s):  
Stem Cells ◽  
Mesenchymal Stem Cells ◽  
Transcription Factors ◽  
Western Blot ◽  
Metabolic Diseases ◽  
Adipogenic Differentiation ◽  
Luciferase Reporter ◽  
Loss Of Function ◽  
Qrt Pcr ◽  
Obesity And Diabetes

Background/Aims: The elucidation of the molecular mechanism of adipocyte differentiation in mesenchymal stem cells is of essential importance for the development of treatments for metabolic diseases, such as obesity and diabetes. Methods: The expression levels of miR-342-3p and carboxy-terminal binding protein 2 (CtBP2) were regulated by oligonucleotide transfection. Adipogenic differentiation was induced by adipogenic medium containing indomethacin, dexamethasone and 3-isobutyl-1-methylxanthine on day 12, as determined by Oil Red O staining and triglyceride concentration assay to assess intracellular lipid accumulation. The induction of adipocyte-specific transcription factors and markers was detected by qRT-PCR and western blot. The regulation of CtBP2 expression by miR-342-3p was determined by western blot, qRT-PCR, luciferase reporter assay, ChIP assay and functional experiments. Results: We revealed that miR-342-3p was enriched in the adipose tissue of obese mice, and its expression was significantly elevated during adipogenic differentiation in both human mesenchymal stem cells (hMSCs) and 3T3L1 cells. Using gain- and loss-of-function assays, we demonstrated that the overexpression of miR-342-3p markedly promoted the differentiation of hMSCs into an adipogenic lineage. Adipogenesis was significantly blocked by miR-342-3p downregulation. We identified and validated that CtBP2 was a direct target of miR-342-3p in this process. The effects of the inhibition of CtBP2 were similar to those of miR-342-5p overexpression on adipogenic differentiation, promoting the release of C/EBPα from CtBP2 binding. Conclusion: miR-342-3p is a powerful enhancer of the adipogenesis of human adipose-derived MSCs that acts by inhibiting CtBP2 and releasing the key adipogenic regulator C/EBPα from CtBP2 binding, subsequently activating the expression of adipogenic transcription factors and markers.

scholarly journals MiR-27b Impairs Adipocyte Differentiation of Human Adipose Tissue-Derived Mesenchymal Stem Cells by Targeting LPL

2018 ◽  
Vol 47 (2) ◽  
pp. 545-555 ◽  
Author(s):  
Xumin Hu ◽  
Jianhua Tang ◽  
Xuyun Hu ◽  
Peng Bao ◽  
Jinxin Pan ◽  
...  
Keyword(s):  
Stem Cells ◽  
Mesenchymal Stem Cells ◽  
Adipocyte Differentiation ◽  
Adipogenic Differentiation ◽  
Luciferase Reporter ◽  
Reporter Assay ◽  
Qrt Pcr ◽  
Oil Red O Staining ◽  
Oil Red O ◽  
Dual Luciferase Reporter Assay

Background/Aims: In this study, the molecular mechanisms of miR-27b and lipoprotein lipase (LPL) that regulate human adipose-derived mesenchymal stem cells (hASCs) adipogenic differentiation were detected. Methods: Microarray analysis was applied to screen for differentially expressed miRNAs and mRNA during hASCs adipocyte differentiation induction. MiR-27b and LPL were found to have abnormal expression. Then, a dual luciferase reporter assay was employed to validate the targeting relationship between miR-27b and LPL. We also utilized qRT-PCR, western blot, cellular immunofluorescence and an oil red O staining assay to analyze the regulation of miR-27b and LPL during adipogenic differentiation. Results: The microarray analysis demonstrated that, during adipogenic differentiation, miR-27b was down-regulated, while LPL was up-regulated but tended to become stable 14 days after induction. A dual luciferase reporter assay confirmed the negative targeting regulatory relationship between miR-27b and LPL. After overexpressing and silencing miR-27b, LPL was found to be reversely regulated by miR-27b according to qRT-PCR and western blot. The fat-formation-related biomarkers CCAAT-enhancer binding protein α (c/EBPα) and peroxisome proliferator-activated receptors γ (PPARγ) had decreasing levels after over-expressing miR-27b or knockdown of LPL followed by adipogenic differentiation. Meanwhile, the oil red O staining assay revealed that the accumulation of lipid droplets decreased. There was no change in the expression of c/EBPα, PPARγ, or lipid droplet accumulation when overexpressing miR-27b and LPL. Conclusion: During the adipogenic differentiation of hASCs, miR-27b expression decreased, and LPL expression increased. The abnormal expression of miR-27b and LPL effectively regulated the adipogenic differentiation of hASCs.

scholarly journals ZFP36L1 regulates Fgf21 mRNA turnover and modulates alcoholic hepatic steatosis and inflammation in mice

2021 ◽  
Author(s):  
Chandra S. Bathula ◽  
Jian Chen ◽  
Perry J. Blackshear ◽  
Yogesh Saini ◽  
Sonika Patial
Keyword(s):  
Hepatic Steatosis ◽  
Zinc Finger ◽  
Zinc Finger Protein ◽  
Luciferase Reporter ◽  
Fibroblast Growth Factor 21 ◽  
Control Group ◽  
Rna Seq ◽  
Reporter Assays ◽  
Steady State Levels

Zinc finger protein 36 like 1 (ZFP36L1) enhances the turnover of mRNAs containing AU-rich elements (AREs) in their 3′untranslated regions (3′UTR). The physiological and pathological functions of ZFP36L1 in liver, however, remain largely unknown. To investigate the role of ZFP36L1 in liver physiology and pathology, we generated liver-specific ZFP36L1-deficient (Zfp36l1flox/flox/Cre+; L1LKO) mice. Under normal conditions, the L1LKO mice and their littermate controls (Zfp36l1flox/flox/Cre-; L1FLX) appeared normal. When fed a Lieber-DeCarli liquid diet containing alcohol, L1LKO mice were significantly protected from developing alcohol-induced hepatic steatosis and inflammation compared to L1FLX mice. Serum ALT levels were significantly increased in alcohol-fed L1FLX versus alcohol-fed L1LKO mice. RNA-Seq analysis revealed 584 differentially-expressed transcripts in L1FLX alcohol-fed mice, many of which were inflammatory mediators, compared to only 159 in alcohol-fed L1LKO mice. Most importantly, fibroblast growth factor 21 (Fgf21) mRNA was significantly increased in the livers of alcohol-fed L1LKO mice but not in the alcohol-fed control group. The Fgf21 mRNA contains three AREs in its 3′UTR, and Fgf21 3′UTR was directly regulated by ZFP36L1 in luciferase reporter assays. Steady state levels of Fgf21 mRNA were significantly decreased by wildtype ZFP36L1, but not by a non-binding zinc-finger ZFP36L1 mutant. Finally, wildtype ZFP36L1, but not the ZFP36L1 mutant, bound to Fgf21 3′UTR ARE RNA probe. Our results demonstrate that ZFP36L1 inactivation protects against alcohol-induced hepatic steatosis and liver injury, possibly by stabilizing Fgf21 mRNA. Our findings suggest that the modulation of ZFP36L1 may be beneficial in the prevention or treatment of human alcoholic liver disease.

scholarly journals Upregulation of Extracellular Vesicles-Encapsulated miR-132 Released From Mesenchymal Stem Cells Attenuates Ischemic Neuronal Injury by Inhibiting Smad2/c-jun Pathway via Acvr2b Suppression

2021 ◽  
Vol 8 ◽  
Author(s):  
Bin Feng ◽  
Lei Meng ◽  
Liming Luan ◽  
Zhihao Fang ◽  
Peng Zhao ◽  
...  
Keyword(s):  
Stem Cells ◽  
Mesenchymal Stem Cells ◽  
Extracellular Vesicles ◽  
Neuronal Cell ◽  
Neuronal Injury ◽  
Cell Counting ◽  
Luciferase Reporter ◽  
Gene Assay ◽  
Ischemic Neuronal Injury

Ischemic cerebrovascular disease is a significant and common public health issue worldwide. The emerging roles of mesenchymal stem cells (MSCs)-derived extracellular vesicles (EVs) in ischemic neuronal injury continue to be investigated. The current study aimed to investigate the role of EV-derived miR-132 from MSCs in ischemic neuronal injury. EVs were initially isolated from bone MSCs (BMSCs) and subsequently evaluated. A middle cerebral artery occlusion (MCAO) mouse model was constructed with the neurological function evaluated through a series of neurological scores, a pole test, and a foot fault test. Histopathological changes, neuron viability, and apoptosis, as well as cerebral infarction, were detected by hematoxylin and eosin (HE) staining and 2,3,5-triphenyltetrazolium hydrochloride (TTC) staining. The targeting relationship between microRNA (miR)-132 and Activin receptor type IIB (Acvr2b) was further confirmed based on dual-luciferase reporter gene assay results. Loss- and gain-of-function assays were conducted to elucidate the role of miR-132, EV-derived miR-132, Acvr2b, and Smad2 in oxygen-glucose deprivation (OGD)-treated neurons, and in mice models. Neuronal cell viability and apoptosis were evaluated via Cell Counting kit-8 (CCK-8) and flow cytometry. Our results indicated that Acvr2b was highly expressed, while miR-132 was poorly expressed in the MCAO mice and OGD-treated neurons. Acvr2b silencing or upregulation of miR-132 led to an elevation in neuronal activity, decreased neuronal apoptosis, reduced expression of Bax, and cleaved-caspase 3, as well as increased Bcl-2 expression. Acvr2b expression was targeted and inhibited by miR-132. EV-derived Acvr2b promoted activation of phosphorylated-Smad2 (p-Smad2)/c-jun signaling pathway, ultimately inducing neuronal injury. Our study provides evidence demonstrating that the overexpression of c-jun inhibits the protective role of MSCs-derived EV-miR-132 in neuronal injury. Upregulation of EV-derived miR-132 released from MSCs attenuates ischemic neuronal injury by inhibiting Smad2/c-jun pathways via the suppression of Acvr2b.

scholarly journals ELK4-mediated lncRNA SNHG22 promotes gastric cancer progression through interacting with EZH2 and regulating miR-200c-3p/Notch1 axis

2021 ◽  
Author(s):  
Xiaqiong Mao ◽  
Tao Ji ◽  
Aiguo Liu ◽  
Yunqi Weng
Keyword(s):  
Gastric Cancer ◽  
Cancer Progression ◽  
Tumor Suppressor Genes ◽  
Luciferase Reporter ◽  
Diagnosis And Prognosis ◽  
Reporter Assays ◽  
Non Coding Rnas ◽  
Gastric Cancer Progression ◽  
Proliferation And Invasion

Abstract Background Long non-coding RNAs (lncRNAs) play important regulatory roles in the initiation and progression of various cancers. However, the biological roles and the potential mechanisms of lncRNAs in gastric cancers remain unclear. Methods The expression of SNHG22 in gastric cancer was analyzed in public databases (TCGA) and validated via qRT-PCR. SNHG22 knockdown cell lines were construced, and cell proliferation and invasion were analyzed. CHIP and luciferase reporter assays were performed to clarify the transcriptional role of ELK4. RNA pull-down followed MS and RIP assays were employed to identify the interaction between SNHG22 and EZH2. Luciferase reporter assays and RIP assays were used to confirm the regulation of SNHG22 on Notch1 by sponging miR-2003-3p. Results Knockdown of SNHG22 inhibited the proliferation and invasion ability of GC cells. Moreover, we identified that the transcriptional factor, ELK4, could promote SNHG22 expression in GC cells. In addition, using RNA pull-down followed MS assay, we found that SNHG22 directly bound to EZH2 to suppress the expression of tumor suppressor genes. At the same time, SNHG22 sponged miR-200c-3p to increase Notch1 expression. Conclusions Taken together, our findings demonstrated the role of SNHG22 on promoting proliferation and invasion of GC cells. And we revealed a new regulatory mechanism of SNHG22 in GC cells. SNHG22 is a promising lncRNA biomarker for diagnosis and prognosis and a potential target for GC treatment.

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