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Evaluation of The Expression Levels of Three Long Non-Coding RNAs in Multiple Sclerosis 三种长链非编码rna在多发性硬化症中的表达水平评价
Pub Date : 2019-10-14 DOI: 10.22074/cellj.2020.6555
A. Moradi, Mahdis Rahimi Naiini, N. Yazdanpanahi, Hossein Tabatabaeian, Fariba Nabatchian, M. Baghi, M. Azadeh, K. Ghaedi
Objective Multiple sclerosis (MS) is a chronic disorder involving both inflammatory and neurodegenerative responses. Long non-coding RNAs (lncRNAs) have been had an emerging role as the biomarkers of different disorders, including autoimmune diseases. Previous studies have shown that NR_003531.3 (MEG3a), AC000061.1_201, and AC007182.6 play a role in the pathogenesis of human autoimmune diseases. However, the potential significance of these lncRNAs, as the diagnostic biomarkers of MS, has not been studied yet. We aimed to quantitatively evaluate the expression levels of NR_003531.3, AC000061.1_201, and AC007182.6 in peripheral blood samples of MS patients in comparison with healthy controls. Materials and Methods In this case-control study, the blood samples from 20 MS patients and 10 healthy controls were collected. Total RNA was extracted, and the expression levels of three selected lncRNAs were quantitatively measured using the quantitative real time-polymerase chain reaction (qRT-PCR) method. Results We detected a significant down-regulation in the expression of NR_003531.3 in MS patients, while no marked changes were observed in the expression of AC000061.1_201 and AC007182.6 in patients compared with controls. Based on the receiver operating characteristic (ROC) curve analysis, NR_003531.3 could discriminate MS patients from healthy subjects effectively. Regarding the prognosis of MS patients, NR_003531.3 is significantly and inversely correlated with the expanded disability status scale (EDSS). Conclusion The potential role of NR_003531.3 lncRNA as a diagnostic biomarker to distinguish MS patients is proposed. Prognostically, NR_003531.3 correlates with lower disability rates in MS patients.
目的多发性硬化症(MS)是一种慢性疾病,涉及炎症和神经退行性反应。长链非编码rna (lncRNAs)作为包括自身免疫性疾病在内的各种疾病的生物标志物已经发挥了新的作用。既往研究表明NR_003531.3 (MEG3a)、ac000061.1 .1_201、AC007182.6在人类自身免疫性疾病的发病机制中发挥作用。然而,这些lncrna作为MS诊断生物标志物的潜在意义尚未得到研究。我们的目的是定量评估NR_003531.3、ac000061.1 .1_201和AC007182.6在MS患者外周血样本中的表达水平,并与健康对照进行比较。材料与方法采集20例MS患者和10例健康对照者的血液样本。提取总RNA,采用定量实时聚合酶链反应(qRT-PCR)法定量检测3种lncRNAs的表达水平。结果在MS患者中NR_003531.3的表达明显下调,而ac000061.1 .1_201和AC007182.6的表达与对照组相比无明显变化。经受试者工作特征(ROC)曲线分析,NR_003531.3能有效区分MS患者和健康受试者。对于MS患者的预后,NR_003531.3与扩展残疾状态量表(EDSS)呈显著负相关。结论NR_003531.3 lncRNA有可能作为鉴别MS患者的诊断性生物标志物。预后方面,NR_003531.3与MS患者较低的致残率相关。
{"title":"Evaluation of The Expression Levels of Three Long Non-Coding RNAs in Multiple Sclerosis","authors":"A. Moradi, Mahdis Rahimi Naiini, N. Yazdanpanahi, Hossein Tabatabaeian, Fariba Nabatchian, M. Baghi, M. Azadeh, K. Ghaedi","doi":"10.22074/cellj.2020.6555","DOIUrl":"https://doi.org/10.22074/cellj.2020.6555","url":null,"abstract":"Objective Multiple sclerosis (MS) is a chronic disorder involving both inflammatory and neurodegenerative responses. Long non-coding RNAs (lncRNAs) have been had an emerging role as the biomarkers of different disorders, including autoimmune diseases. Previous studies have shown that NR_003531.3 (MEG3a), AC000061.1_201, and AC007182.6 play a role in the pathogenesis of human autoimmune diseases. However, the potential significance of these lncRNAs, as the diagnostic biomarkers of MS, has not been studied yet. We aimed to quantitatively evaluate the expression levels of NR_003531.3, AC000061.1_201, and AC007182.6 in peripheral blood samples of MS patients in comparison with healthy controls. Materials and Methods In this case-control study, the blood samples from 20 MS patients and 10 healthy controls were collected. Total RNA was extracted, and the expression levels of three selected lncRNAs were quantitatively measured using the quantitative real time-polymerase chain reaction (qRT-PCR) method. Results We detected a significant down-regulation in the expression of NR_003531.3 in MS patients, while no marked changes were observed in the expression of AC000061.1_201 and AC007182.6 in patients compared with controls. Based on the receiver operating characteristic (ROC) curve analysis, NR_003531.3 could discriminate MS patients from healthy subjects effectively. Regarding the prognosis of MS patients, NR_003531.3 is significantly and inversely correlated with the expanded disability status scale (EDSS). Conclusion The potential role of NR_003531.3 lncRNA as a diagnostic biomarker to distinguish MS patients is proposed. Prognostically, NR_003531.3 correlates with lower disability rates in MS patients.","PeriodicalId":9692,"journal":{"name":"Cell Journal (Yakhteh)","volume":"61 1","pages":"165 - 170"},"PeriodicalIF":0.0,"publicationDate":"2019-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84023530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 13
Arsenic Trioxide and Thalidomide Combination Induces Autophagy Along with Apoptosis in Acute Myeloid Cell Lines 三氧化二砷联合沙利度胺诱导急性髓系细胞自噬和凋亡
Pub Date : 2019-10-14 DOI: 10.22074/cellj.2020.6469
Mahnaz Mohammadi Kian, A. Haghi, Mahdieh Salami, Bahram Chahardouli, S. Rostami, K. Malekzadeh, Hosein Kamranzadeh Foumani, S. Mohammadi, M. Nikbakht
Objective Autophagy and apoptosis play key roles in cancer survival and pathogenesis and are governed by specific genes which have a dual role in both cell death and survival. Arsenic trioxide (ATO) and thalidomide (THAL) are used for treatment of many types of hematologic malignancies. ATO prevents the proliferation of cells and induces apoptosis in some cancer cells. Moreover, THAL has immunomodulatory and antiangiogenic effects in malignant cells. The aim of present study was to examine the effects of ATO and THAL on U937 and KG-1 cells, and evaluation of mRNA expression level of VEGFs genes, PI3K genes and some of autophagy genes. Materials and Methods In this in vitro experimental study, U937 and KG-1 cells were treated by ATO (0.4-5 µM) and THAL (5-100 µM) for 24, 48 and 72 hours. Cell viability was measured by MTT assay. The apoptosis rate and cell cycle arrest were evaluated by flow cytometry (Annexin/PI) and cell cycle flow cytometry analysis, respectively. The effect of ATO/THAL on mRNAs expression was evaluated by real-time polymerase chain reaction (PCR). Results ATO/THAL combination enhanced cell apoptosis in a dose-dependent manner. Also, ATO/THAL induced SubG1/ G1 phase arrest. mRNA expression levels of VEGFC (contrary to other VEGFs isoform), PI3K, AKT, mTOR, MEK1, PTEN, IL6, LC3 and P62 genes were upregulated in acute myeloid leukemia (AML) cells following treatment with ATO/THAL. Conclusion Combined treatment with ATO and THAL can inhibit proliferation and invasion of AML cells by down-regulating ULK1 and BECLIN1 and up-regulating PTEN and IL6, and this effect was more marked than the effects of ATO and THAL alone.
目的细胞自噬和细胞凋亡在肿瘤的生存和发病过程中起着至关重要的作用,受特定基因的调控,这些基因在细胞的死亡和存活中起着双重作用。三氧化二砷(ATO)和沙利度胺(THAL)用于治疗多种类型的血液恶性肿瘤。ATO在某些癌细胞中抑制细胞增殖并诱导细胞凋亡。此外,THAL在恶性细胞中具有免疫调节和抗血管生成作用。本研究旨在探讨ATO和THAL对U937和KG-1细胞的影响,并评估vegf基因、PI3K基因和部分自噬基因的mRNA表达水平。材料与方法体外实验将U937和KG-1细胞分别用ATO(0.4-5µM)和THAL(5-100µM)处理24、48和72小时。MTT法测定细胞活力。采用流式细胞术(Annexin/PI)和细胞周期流式细胞术分析细胞凋亡率和细胞周期阻滞。实时聚合酶链反应(real-time polymerase chain reaction, PCR)评价ATO/THAL对mrna表达的影响。结果ATO/THAL联合用药促进细胞凋亡呈剂量依赖性。此外,ATO/THAL诱导SubG1/ G1期阻滞。ATO/THAL治疗后,急性髓性白血病(AML)细胞中VEGFC(与其他vegf亚型相反)、PI3K、AKT、mTOR、MEK1、PTEN、IL6、LC3和P62基因的mRNA表达水平上调。结论ATO和THAL联合治疗可通过下调ULK1和BECLIN1,上调PTEN和IL6抑制AML细胞的增殖和侵袭,且其作用比ATO和THAL单独治疗更明显。
{"title":"Arsenic Trioxide and Thalidomide Combination Induces Autophagy Along with Apoptosis in Acute Myeloid Cell Lines","authors":"Mahnaz Mohammadi Kian, A. Haghi, Mahdieh Salami, Bahram Chahardouli, S. Rostami, K. Malekzadeh, Hosein Kamranzadeh Foumani, S. Mohammadi, M. Nikbakht","doi":"10.22074/cellj.2020.6469","DOIUrl":"https://doi.org/10.22074/cellj.2020.6469","url":null,"abstract":"Objective Autophagy and apoptosis play key roles in cancer survival and pathogenesis and are governed by specific genes which have a dual role in both cell death and survival. Arsenic trioxide (ATO) and thalidomide (THAL) are used for treatment of many types of hematologic malignancies. ATO prevents the proliferation of cells and induces apoptosis in some cancer cells. Moreover, THAL has immunomodulatory and antiangiogenic effects in malignant cells. The aim of present study was to examine the effects of ATO and THAL on U937 and KG-1 cells, and evaluation of mRNA expression level of VEGFs genes, PI3K genes and some of autophagy genes. Materials and Methods In this in vitro experimental study, U937 and KG-1 cells were treated by ATO (0.4-5 µM) and THAL (5-100 µM) for 24, 48 and 72 hours. Cell viability was measured by MTT assay. The apoptosis rate and cell cycle arrest were evaluated by flow cytometry (Annexin/PI) and cell cycle flow cytometry analysis, respectively. The effect of ATO/THAL on mRNAs expression was evaluated by real-time polymerase chain reaction (PCR). Results ATO/THAL combination enhanced cell apoptosis in a dose-dependent manner. Also, ATO/THAL induced SubG1/ G1 phase arrest. mRNA expression levels of VEGFC (contrary to other VEGFs isoform), PI3K, AKT, mTOR, MEK1, PTEN, IL6, LC3 and P62 genes were upregulated in acute myeloid leukemia (AML) cells following treatment with ATO/THAL. Conclusion Combined treatment with ATO and THAL can inhibit proliferation and invasion of AML cells by down-regulating ULK1 and BECLIN1 and up-regulating PTEN and IL6, and this effect was more marked than the effects of ATO and THAL alone.","PeriodicalId":9692,"journal":{"name":"Cell Journal (Yakhteh)","volume":"19 1","pages":"193 - 202"},"PeriodicalIF":0.0,"publicationDate":"2019-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91246443","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
Platelets Apoptosis and Clearance in The Presence of Sodium Octanoate during Storage of Platelet Concentrate at 4˚C 辛酸钠对血小板浓缩物4℃贮藏过程中血小板凋亡及清除的影响
Pub Date : 2019-10-14 DOI: 10.22074/cellj.2020.6697
Vahid Baghdadi, F. Yari, M. Nikougoftar, M. Rafiee
Objective Platelet (PLT) storage at 4˚C has several benefits, however, it is accompanied by increased clearance of PLTs after transfusion. In this study, we evaluated the potential of sodium octanoate (SO) for reducing apoptosis and clearance rate of PLTs after long-term storage in cold. Materials and Methods In this experimental study, PLT concentrates (PCs) were stored for 5 days under the following three conditions: 20-24˚C, 4˚C, and 4˚C in the presence of SO. To measure the viability of PLTs, the water-soluble tetrazolium salt (WST-1) assay was performed. Phosphatidylserine (PS) exposure was determined on PLTs using flow cytometry technique. The amount of human active caspase-3 was determined in PLTs using an enzyme-linked immunosorbent assay. Additionally, the amount of PLT ingestion or clearance was determined by using HepG2 cell line. Results The viability was higher in the SO-treated PLTs compared to the other groups. The level of PS exposure on PLTs was lower in the SO-treated PLTs compared to the other groups. The amount of active caspase-3 increased in all groups during 5-day storage. The highest increase in the amount of caspase-3 levels was observed at cold temperature. However, PLTs kept at 4˚C in the presence of SO had a lower amount of active caspase-3 compared to PLTs kept at 4˚C. The amount of PLTs removal by HepG2 cells was increased for 4˚C-kept PLTs but it was lower for PLTs kept at 4˚C in the presence of SO but, the differences were not significant (P>0.05). Conclusion SO could partially moderate the effects of cold temperature on apoptosis and viability of platelets. It also decreases the ingestion rate of long-time refrigerated PLTs in vitro. Further studies using higher numbers of samples are required to demonstrate the effect of SO on reducing the clearance rate of PLTs.
目的血小板(PLT)在4℃条件下储存有诸多好处,但同时也伴随着输血后血小板清除率的增加。在这项研究中,我们评估了辛酸钠(SO)在长期冷藏后减少plt细胞凋亡和清除率的潜力。材料与方法将PLT浓缩液(PCs)在20-24℃、4℃、4℃、SO存在条件下保存5 d。采用水溶性四唑盐(WST-1)法测定plt的活力。采用流式细胞术检测plt中磷脂酰丝氨酸(PS)的暴露情况。使用酶联免疫吸附法测定plt中人活性caspase-3的量。此外,通过HepG2细胞系测定PLT的摄入或清除量。结果so处理后的plt细胞活力明显高于其他各组。与其他组相比,接受so治疗的plt的PS暴露水平较低。贮藏5 d时,各组活性caspase-3含量均增加。caspase-3水平在低温下增加最多。然而,与保持在4˚C的plt相比,在SO存在下保持在4˚C的plt具有较低的活性caspase-3量。4˚C时,HepG2细胞对plt的去除量增加,而在4˚C存在SO的情况下,HepG2细胞对plt的去除量减少,但差异无统计学意义(P>0.05)。结论大豆油能部分调节低温对血小板凋亡和活力的影响。它还降低了体外长期冷藏plt的摄食率。需要使用更多样本的进一步研究来证明SO对降低plt清除率的影响。
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引用次数: 3
The Effects of Embryonic Cerebrospinal Fluid on The Viability and Neuronal Differentiation of Adipose Tissue-Derived Stem Cells in Wistar Rats 胚胎脑脊液对Wistar大鼠脂肪干细胞活力及神经元分化的影响
Pub Date : 2019-10-14 DOI: 10.22074/cellj.2020.6560
Mohammad-Hossein Mohammadi-Mahdiabadi-Hasani, M. Nabiuni, K. Parivar, S. Yari, Ali Reza Sahebi, Jaleel A. Miyan
Objective The embryonic cerebrospinal fluid (e-CSF) contains various growth factors and morphogens. Recent studies showed that e-CSF plays significant roles in embryonic brain development. Adipose tissue-derived stem cells (ADSCs) have a mesodermal origin that can be differentiated into mesodermal and ectodermal lineages. This study aimed to evaluate the effects of e-CSF on the proliferation, viability, and neural differentiation of ADSCs in rats. Materials and Methods In this experimental study, adipose tissue was dissected out from the inguinal region of adult male rats. Then, ADSCs were isolated by enzymatic digestion from adipose tissues and mesenchymal cells were confirmed using the flow cytometry analysis that measured the cell surface markers including CD90, CD44, CD73, CD105, CD34, CD45, and CD11b. The multi-potential characteristics of ADSCs were assessed by osteogenic and adipogenic potentials of these cells. Under suitable in vitro conditions, ADSCs were cultured in DMEM supplemented with and without additional 10% e-CSF. These fluids were collected from Wistar rats at the E17, E18, and E19 gestational ages. Cellular proliferation and viability were determined using the MTT assay. Immunocytochemistry was used to study the expression of β-III tubulin in ADSCs. The neurite outgrowth of cultured cells was assessed using the ImageJ software. Results The results of the present study demonstrated that the viability of ADSCs in cell culture conditioned with E17 and E18 e-CSF were significantly increased in comparison with controls. Cultured cells treated with e-CSF from E18 and E19 established neuronal-like cells bearing long process, whereas no process was observed in the control groups or cultured cells treated with E17 e-CSF. Conclusion This study showed that e-CSF has the ability to induce neuronal differentiation and viability in ADSCs. Our data support a significant role of e-CSF as a therapeutic strategy for the treatment of neurodegenerative diseases.
目的胚胎脑脊液中含有多种生长因子和形态因子。近年来的研究表明,e-CSF在胚胎脑发育中起着重要作用。脂肪组织源性干细胞(ADSCs)具有中胚层起源,可分化为中胚层和外胚层细胞系。本研究旨在探讨e-CSF对大鼠ADSCs的增殖、活力和神经分化的影响。材料与方法本实验以成年雄性大鼠腹股沟区脂肪组织为研究对象。然后,用酶切法从脂肪组织中分离ADSCs,用流式细胞术分析细胞表面标志物CD90、CD44、CD73、CD105、CD34、CD45和CD11b,确认间充质细胞。通过细胞的成骨潜能和成脂潜能来评估ADSCs的多潜能特性。在合适的体外条件下,在添加和不添加10% e-CSF的DMEM中培养ADSCs。这些液体采集于E17、E18和E19胎龄Wistar大鼠。采用MTT法测定细胞增殖和活力。采用免疫细胞化学方法研究β-III微管蛋白在ADSCs中的表达。使用ImageJ软件评估培养细胞的神经突生长情况。结果与对照组相比,E17和E18 e-CSF培养的ADSCs的活力显著提高。用E18和E19的e-CSF处理的培养细胞建立了具有长过程的神经元样细胞,而对照组和E17 e-CSF处理的培养细胞没有观察到长过程。结论e-CSF具有诱导ADSCs神经元分化和细胞活力的能力。我们的数据支持e-CSF作为治疗神经退行性疾病的治疗策略的重要作用。
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引用次数: 3
Designing A Transgenic Chicken: Applying New Approaches toward A Promising Bioreactor 设计转基因鸡:应用新方法构建有前途的生物反应器
Pub Date : 2019-10-14 DOI: 10.22074/cellj.2020.6738
S. Bahrami, Amir Amiri-Yekta, Abbas Daneshipour, Seyedeh Hoda Jazayeri, P. Mozdziak, M. Sanati, H. Gourabi
Specific developmental characteristics of the chicken make it an attractive model for the generation of transgenic organisms. Chicken possess a strong potential for recombinant protein production and can be used as a powerful bioreactor to produce pharmaceutical and nutritional proteins. Several transgenic chickens have been generated during the last two decades via viral and non-viral transfection. Culturing chicken primordial germ cells (PGCs) and their ability for germline transmission ushered in a new stage in this regard. With the advent of CRISPR/Cas9 system, a new phase of studies for manipulating genomes has begun. It is feasible to integrate a desired gene in a predetermined position of the genome using CRISPR/Cas9 system. In this review, we discuss the new approaches and technologies that can be applied to generate a transgenic chicken with regards to recombinant protein productions.
鸡的特殊发育特征使其成为转基因生物产生的有吸引力的模型。鸡具有很强的重组蛋白生产潜力,可以作为一种强大的生物反应器来生产药用和营养蛋白。在过去的二十年中,通过病毒和非病毒转染已经产生了几种转基因鸡。鸡原始生殖细胞(PGCs)的培养及其种系传播能力的研究进入了一个新的阶段。随着CRISPR/Cas9系统的出现,基因组操纵研究进入了一个新的阶段。利用CRISPR/Cas9系统将所需基因整合到基因组的预定位置是可行的。本文综述了转基因鸡在生产重组蛋白方面的新途径和新技术。
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引用次数: 10
A Comparative Study of HOTAIR Expression in Breast Cancer Patient Tissues and Cell Lines HOTAIR在乳腺癌患者组织和细胞系中表达的比较研究
Pub Date : 2019-10-14 DOI: 10.22074/cellj.2020.6543
A. Arshi, Farzaneh Raeisi, E. Mahmoudi, Fatemeh Mohajerani, Hamidreza Kabiri, Razieh Fazel, Maedeh Zabihian-Langeroudi, A. Jusic
Objective Recent data suggest that increased levels of the HOTAIR long non-coding RNA (lncRNA) are involved in the development of various types of malignancy, including breast cancer. The aim of present study was to investigate HOTAIR lncRNA expression profile in breast cancer (BC) patients and cell lines. Materials and Methods In this experimental study, expression level of HOTAIR lncRNA was evaluated in BC and normal tissues of 15 patients as well as MDA-MB-231, MCF-7 and MCF-10A cell lines, using quantitative reverse- transcription polymerase chain reaction (qRT-PCR). HOTAIR lncRNA expression levels were estimated using 2-ΔΔCt method. Further, receiver operating characteristic (ROC) curve analysis was done to evaluate the selected lncRNA diagnostic potential. The Cox’s proportional hazards regression model was performed to evaluate the predictive value of this lncRNA level in BC patients. Results The results of present study demonstrated no significant difference in the expression of HOTAIR lncRNA in MCF7 and MDA-MB-231 cancer cell lines compared to MCF-10A as normal cell line (P>0.05). However, we observed a significantly increase in the expression of HOTAIR in BC patients compared to normal tissues (P<0.001). Significant associations were found between gene expression and tumour size and margin. We found 91.1% sensitivity and 95.7% specificity of circulating HOTAIR with an area under the ROC curve of 0.969. The Kaplan-Meier analysis indicated significant correlation between HOTAIR expression and overall survival. Conclusion This study demonstrated that expression of HOTAIR is increased in BC and might be associated with its progression. According to these findings, HOTAIR expression could be proposed as biomarkers for BC early diagnosis and prognosis.
最近的研究表明,HOTAIR长链非编码RNA (lncRNA)水平的升高与包括乳腺癌在内的多种恶性肿瘤的发展有关。本研究旨在探讨HOTAIR lncRNA在乳腺癌患者和细胞系中的表达谱。材料与方法本实验研究采用定量逆转录聚合酶链式反应(qRT-PCR)技术检测了HOTAIR lncRNA在15例患者BC、正常组织以及MDA-MB-231、MCF-7、MCF-10A细胞系中的表达水平。使用2-ΔΔCt方法估计HOTAIR lncRNA表达水平。进一步,进行受试者工作特征(ROC)曲线分析,以评估所选lncRNA的诊断潜力。采用Cox比例风险回归模型评估该lncRNA水平在BC患者中的预测价值。结果本研究结果显示,HOTAIR lncRNA在MCF7和MDA-MB-231癌细胞中的表达与正常细胞系MCF-10A相比无显著差异(P>0.05)。然而,我们观察到与正常组织相比,BC患者中HOTAIR的表达显著增加(P<0.001)。基因表达与肿瘤大小和边缘之间存在显著关联。循环HOTAIR的敏感性为91.1%,特异性为95.7%,ROC曲线下面积为0.969。Kaplan-Meier分析显示HOTAIR表达与总生存率有显著相关性。结论本研究表明HOTAIR在BC中表达增加,并可能与BC的进展有关。根据这些发现,HOTAIR的表达可以作为BC早期诊断和预后的生物标志物。
{"title":"A Comparative Study of HOTAIR Expression in Breast Cancer Patient Tissues and Cell Lines","authors":"A. Arshi, Farzaneh Raeisi, E. Mahmoudi, Fatemeh Mohajerani, Hamidreza Kabiri, Razieh Fazel, Maedeh Zabihian-Langeroudi, A. Jusic","doi":"10.22074/cellj.2020.6543","DOIUrl":"https://doi.org/10.22074/cellj.2020.6543","url":null,"abstract":"Objective Recent data suggest that increased levels of the HOTAIR long non-coding RNA (lncRNA) are involved in the development of various types of malignancy, including breast cancer. The aim of present study was to investigate HOTAIR lncRNA expression profile in breast cancer (BC) patients and cell lines. Materials and Methods In this experimental study, expression level of HOTAIR lncRNA was evaluated in BC and normal tissues of 15 patients as well as MDA-MB-231, MCF-7 and MCF-10A cell lines, using quantitative reverse- transcription polymerase chain reaction (qRT-PCR). HOTAIR lncRNA expression levels were estimated using 2-ΔΔCt method. Further, receiver operating characteristic (ROC) curve analysis was done to evaluate the selected lncRNA diagnostic potential. The Cox’s proportional hazards regression model was performed to evaluate the predictive value of this lncRNA level in BC patients. Results The results of present study demonstrated no significant difference in the expression of HOTAIR lncRNA in MCF7 and MDA-MB-231 cancer cell lines compared to MCF-10A as normal cell line (P>0.05). However, we observed a significantly increase in the expression of HOTAIR in BC patients compared to normal tissues (P<0.001). Significant associations were found between gene expression and tumour size and margin. We found 91.1% sensitivity and 95.7% specificity of circulating HOTAIR with an area under the ROC curve of 0.969. The Kaplan-Meier analysis indicated significant correlation between HOTAIR expression and overall survival. Conclusion This study demonstrated that expression of HOTAIR is increased in BC and might be associated with its progression. According to these findings, HOTAIR expression could be proposed as biomarkers for BC early diagnosis and prognosis.","PeriodicalId":9692,"journal":{"name":"Cell Journal (Yakhteh)","volume":"541 1","pages":"178 - 184"},"PeriodicalIF":0.0,"publicationDate":"2019-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74865015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 15
In Utero Exposure to Gestational Diabetes Alters DNA Methylation and Gene Expression of CDKN2A/B in Langerhans Islets of Rat Offspring 子宫内暴露于妊娠糖尿病会改变大鼠后代朗格汉斯胰岛DNA甲基化和CDKN2A/B基因表达
Pub Date : 2019-10-14 DOI: 10.22074/cellj.2020.6699
Z. Nazari, Alireza Shahryari, S. Ghafari, M. Nabiuni, M. Golalipour
Objective DNA methylation, a major epigenetic reprogramming mechanism, contributes to the increased prevalence of type 2 diabetes mellitus (T2DM). Based on genome-wide association studies, polymorphisms in CDKN2A/B are associated with T2DM. Our previous studies showed that gestational diabetes mellitus (GDM) causes apoptosis in β-cells, leading to a reduction in their number in pancreatic tissue of GDM-exposed adult rat offspring. The aim of this study was to examine the impact of intrauterine exposure to GDM on DNA methylation, mRNA transcription, as well as protein expression of these factors in the pancreatic islets of Wistar rat offspring. Our hypothesis was that the morphological changes seen in our previous study might have been caused by aberrant methylation and expression of CDKN2A/B. Materials and Methods In this experimental study, we delineated DNA methylation patterns, mRNA transcription and protein expression level of CDKN2A/B in the pancreatic islets of 15-week-old rat offspring of streptozotocin-induced GDM dams. We performed bisulfite sequencing to determine the DNA methylation patterns of CpGs in candidate promoter regions of CDKN2A/B. Furthermore, we compared the levels of mRNA transcripts as well as the cell cycle inhibitory proteins P15 and P16 in two groups by qPCR and western blotting, respectively. Results Our results demonstrated that hypomethylation of CpG sites in the vicinity of CDKN2A and CDKN2B genes is positively related to increased levels of CDKN2A/B mRNA and protein in islets of Langerhans in the GDM offspring. The average percentage of CDKN2A promoter methylation was significantly lower in GDM group compared to the controls (P<0.01). Conclusion We postulate that GDM is likely to exert its adverse effects on pancreatic β-cells of offspring through hypomethylation of the CDKN2A/B promoter. Abnormal methylation of these genes may have a link with β-cell dysfunction and diabetes. These data potentially lead to a novel approach to the treatment of T2DM.
DNA甲基化是一种主要的表观遗传重编程机制,与2型糖尿病(T2DM)患病率增加有关。基于全基因组关联研究,CDKN2A/B多态性与T2DM相关。我们之前的研究表明,妊娠期糖尿病(GDM)导致妊娠期糖尿病暴露的成年大鼠后代胰腺组织中β-细胞凋亡,导致β-细胞数量减少。本研究的目的是研究宫内暴露于GDM对Wistar大鼠后代胰岛DNA甲基化、mRNA转录以及这些因子的蛋白表达的影响。我们的假设是,我们之前研究中看到的形态学变化可能是由CDKN2A/B的异常甲基化和表达引起的。材料和方法在本实验研究中,我们描绘了15周龄链脲佐菌素诱导的GDM大鼠后代胰岛中CDKN2A/B的DNA甲基化模式、mRNA转录和蛋白表达水平。我们进行亚硫酸盐测序以确定CDKN2A/B候选启动子区域CpGs的DNA甲基化模式。此外,我们通过qPCR和western blotting分别比较了两组小鼠mRNA转录本水平以及细胞周期抑制蛋白P15和P16的表达水平。我们的研究结果表明,GDM后代朗格汉斯岛CDKN2A和CDKN2B基因附近CpG位点的低甲基化与CDKN2A/B mRNA和蛋白水平升高呈正相关。GDM组CDKN2A启动子甲基化的平均百分比显著低于对照组(P<0.01)。结论GDM可能通过CDKN2A/B启动子的低甲基化作用对后代胰腺β细胞产生不良影响。这些基因的异常甲基化可能与β细胞功能障碍和糖尿病有关。这些数据可能会导致一种治疗T2DM的新方法。
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引用次数: 11
Comparison of Epigenetic Modifier Genes in Bovine Adipose Tissue-Derived Stem Cell Based Embryos, as Donors, with In Vitro and Parthenogenesis Embryos 牛脂肪组织来源干细胞胚胎与体外和孤雌胚胎的表观遗传修饰基因比较
Pub Date : 2019-10-14 DOI: 10.22074/cellj.2020.6714
M. Salehi, B. Abouhamzeh, A. Hosseini, Z. Zare, A. Bakhtari
Objective Regarding that undifferentiated mesenchymal stem cells, as donor cells, require less epigenetic reprogramming, possibility of using bovine adipose tissue-derived stem cells (BASCs) with low level of DNMTs and HDACs expression was evaluated. Materials and Methods In this experimental study, we examined gene expression of epigenetic modifiers including DNA methyltransferases (DNMT1, DNMT3A and DNMT3B) and histone deacetylases (HDAC1-3), as well as protein levels of histone H3 acetylation at lysine 9 (H3K9ac) and POU5F1 (also known as OCT4) at two stages of preimplantation development among in vitro fertilization (IVF), parthenogenetic activation (PA) and somatic cell nuclear transfer (SCNT) groups. Results The results revealed that developmental competence of IVF embryos was higher than SCNT embryos (P<0.05). In the PA and SCNT groups, DNMT1, HDAC2 and HDAC3 mRNA were overexpressed (P<0.05), and proteins levels of H3K9ac and POU5F1 were reduced at 6-8 cells and blastocyst stages compared to IVF (P<0.05). The mRNA expression of DNMT1 an<0.05) in both developmental stages (except HDAC1 in blastocyst stage). Conclusion The SCNT embryos derived from BASCs have endured considerable nuclear reprogramming during early embryo development. Comparison of PA and SCNT blastocysts demonstrated that HDAC1 and DNMT1 may attribute to developmental competence variability of bovine embryos.
目的考虑到未分化间充质干细胞作为供体细胞需要较少的表观遗传重编程,评估使用低水平DNMTs和hdac表达的牛脂肪组织源性干细胞(BASCs)的可能性。材料与方法在本实验研究中,我们检测了体外受精(IVF)、孤雌生殖激活(PA)和体细胞核移植(SCNT)各组着床前发育两个阶段赖氨酸9 (H3K9ac)和POU5F1(也称为OCT4)组DNA甲基转移酶(DNMT1、DNMT3A和DNMT3B)和组蛋白去乙酰化酶(HDAC1-3)等表观遗传修饰因子的基因表达,以及组蛋白H3乙酰化蛋白水平。结果体外受精胚胎的发育能力高于SCNT胚胎(P<0.05)。在PA和SCNT组中,DNMT1、HDAC2和HDAC3 mRNA过表达(P<0.05), H3K9ac和POU5F1蛋白水平在6-8细胞和囊胚期与IVF相比降低(P<0.05)。DNMT1 mRNA的表达在两个发育阶段均<0.05(囊胚期除外)。结论来源于BASCs的SCNT胚胎在胚胎早期发育过程中经历了大量的核重编程。PA和SCNT囊胚的比较表明,HDAC1和DNMT1可能与牛胚胎的发育能力差异有关。
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引用次数: 1
An Easy and Fast Method for Production of Chinese Hamster Ovary Cell Line Expressing and Secreting Human Recombinant Activin A 一种快速制备表达和分泌人重组激活素A的中国仓鼠卵巢细胞系的方法
Pub Date : 2019-10-14 DOI: 10.22074/cellj.2020.6580
H. Rassouli, Ali Sayadmanesh, Siamak Rezaeiani, Z. Ghezelayagh, M. Gharaati, Tahamtani Yaser
Objective Growth factors are key elements of embryonic stem cell (ESC) research. Cell line development in eukaryotes is a time-consuming procedure which usually takes 12-18 months. Here, we report an easy and fast method with which production of Chinese hamster ovary (CHO) cells that express and secrete recombinant Activin A, as a major growth factor in endo/mesoderm differentiation of embryonic stem cells is achieved within 3-4 weeks. Materials and Methods In this experimental study, we cloned human Activin A into the pDONR/Zeo gateway entry vector using the BP reaction. Activin A was subcloned next into the pLIX_403 and pLenti6.3/TO/V5-DEST destination vectors by the LR reaction. The result was the production of constructs with which 293T cells were finally transfected for virus production. CHO cells were transduced using viral particles to produce a cell line that secretes the His6- Activin A fusion protein. Results We developed a quick protocol which saves up to 3-4 weeks of time for producing recombinant proteins in CHO cells. The recombinant cell line produced 90 mg/L of functional Activin A measured in human ESC line Royan H5 (RH5), during in vitro differentiation into meso-endoderm and definitive endoderm. Conclusion Our results showed no significant differences in functionality between commercial Activin A and the one produced using our novel protocol. This approach can be easily used for producing recombinant proteins in CHO.
生长因子是胚胎干细胞(ESC)研究的关键要素。真核生物细胞系的发育是一个耗时的过程,通常需要12-18个月。在这里,我们报告了一种简单快速的方法,可以在3-4周内产生中国仓鼠卵巢(CHO)细胞,表达和分泌重组激活素A,作为胚胎干细胞内/中胚层分化的主要生长因子。材料与方法本实验利用BP反应将人激活素A克隆到pDONR/Zeo入口载体中。激活素A通过LR反应亚克隆到pLIX_403和pLenti6.3/TO/V5-DEST目的载体上。结果产生的构建体最终转染293T细胞用于病毒生产。用病毒颗粒诱导CHO细胞产生分泌His6-激活素a融合蛋白的细胞系。结果我们开发了一种快速的方案,可以节省3-4周的时间在CHO细胞中生产重组蛋白。重组细胞系在体外分化为中胚层和终胚层的过程中产生90 mg/L的功能性激活素A(在人ESC细胞系Royan H5 (RH5)中测定)。结论:我们的研究结果表明,商业激活素A与使用我们的新方案生产的激活素A在功能上没有显著差异。这种方法可以很容易地用于在CHO中产生重组蛋白。
{"title":"An Easy and Fast Method for Production of Chinese Hamster Ovary Cell Line Expressing and Secreting Human Recombinant Activin A","authors":"H. Rassouli, Ali Sayadmanesh, Siamak Rezaeiani, Z. Ghezelayagh, M. Gharaati, Tahamtani Yaser","doi":"10.22074/cellj.2020.6580","DOIUrl":"https://doi.org/10.22074/cellj.2020.6580","url":null,"abstract":"Objective Growth factors are key elements of embryonic stem cell (ESC) research. Cell line development in eukaryotes is a time-consuming procedure which usually takes 12-18 months. Here, we report an easy and fast method with which production of Chinese hamster ovary (CHO) cells that express and secrete recombinant Activin A, as a major growth factor in endo/mesoderm differentiation of embryonic stem cells is achieved within 3-4 weeks. Materials and Methods In this experimental study, we cloned human Activin A into the pDONR/Zeo gateway entry vector using the BP reaction. Activin A was subcloned next into the pLIX_403 and pLenti6.3/TO/V5-DEST destination vectors by the LR reaction. The result was the production of constructs with which 293T cells were finally transfected for virus production. CHO cells were transduced using viral particles to produce a cell line that secretes the His6- Activin A fusion protein. Results We developed a quick protocol which saves up to 3-4 weeks of time for producing recombinant proteins in CHO cells. The recombinant cell line produced 90 mg/L of functional Activin A measured in human ESC line Royan H5 (RH5), during in vitro differentiation into meso-endoderm and definitive endoderm. Conclusion Our results showed no significant differences in functionality between commercial Activin A and the one produced using our novel protocol. This approach can be easily used for producing recombinant proteins in CHO.","PeriodicalId":9692,"journal":{"name":"Cell Journal (Yakhteh)","volume":"72 1","pages":"140 - 148"},"PeriodicalIF":0.0,"publicationDate":"2019-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85486494","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Helios, CD73 and CD39 Induction in Regulatory T Cells Exposed to Adipose Derived Mesenchymal Stem Cells Helios, CD73和CD39诱导暴露于脂肪源性间充质干细胞的调节性T细胞
Pub Date : 2019-10-14 DOI: 10.22074/cellj.2020.6313
Maryam Fakhimi, Abdolrassul Talei, A. Ghaderi, M. Habibagahi, M. Razmkhah
Objective Mesenchymal stem cells (MSCs) have prominent immunomodulatory roles in the tumor microenvironment. The current study intended to elucidate Treg subsets and their cytokines after exposing naïve T lymphocytes to adipose- derived MSCs (ASCs). Materials and Methods In this experimental study, to obtain ASCs, breast adipose tissues of a breast cancer patient and a normal individual were used. Magnetic cell sorting (MACS) was employed for purifying naïve CD4+T cells from peripheral blood of five healthy donors. Naïve CD4+T cells were then co-cultured with ASCs for five days. The phenotype of regulatory T cells (Tregs) and production of interleukine-10 (IL-10), transforming growth factor beta (TGF-β) and IL-17 were assessed using flow cytometry and ELISPOT assays, respectively. Results CD4+CD25-FOXP3+CD45RA+Tregs were expanded in the presence of cancer ASCs but CD4+CD25+Foxp3+CD45RA+regulatory T cells were up-regulated in the presence of both cancer- and normal-ASCs. This up-regulation was statistically significant in breast cancer-ASCs compared to the cells cultured without ASCs (P=0.002). CD4+CD25+ FOXP3+Helios+, CD4+CD25-FOXP3+Helios+and CD25+FOXP3+CD73+CD39+Tregs were expanded after co-culturing of T cells with both cancer-ASCs and normal-ASCs, while they were statistically significant only in the presence of cancer-ASCs (P<0.05). Production of IL-10, IL-17 and TGF-β by T cells was increased in the presence of either normal- or cancer-ASCs; however, significant effect was only observed in the IL-10 and TGF-β of cancer-ASCs (P<0.05). Conclusion The results further confirm the immunosuppressive impacts of ASCs on T lymphocytes and direct them to specific regulatory phenotypes which may support immune evasion and tumor growth.
目的间充质干细胞(MSCs)在肿瘤微环境中具有重要的免疫调节作用。目前的研究旨在阐明naïve T淋巴细胞暴露于脂肪源性MSCs (ASCs)后Treg亚群及其细胞因子。材料与方法在本实验研究中,使用乳腺癌患者和正常人的乳腺脂肪组织获得ASCs。采用磁性细胞分选(MACS)技术纯化5例健康供者外周血naïve CD4+T细胞。Naïve CD4+T细胞与ASCs共培养5天。分别采用流式细胞术和ELISPOT检测调节性T细胞(Tregs)表型和白细胞介素-10 (IL-10)、转化生长因子β (TGF-β)和IL-17的产生。结果CD4+CD25- Foxp3+CD45RA+ Tregs在癌性ASCs中扩增,而CD4+CD25+Foxp3+CD45RA+调节性T细胞在癌性ASCs和正常ASCs中均上调。与未培养ASCs的细胞相比,这种上调在乳腺癌ASCs中具有统计学意义(P=0.002)。CD4+CD25+ FOXP3+Helios+、CD4+CD25-FOXP3+Helios+、CD25+FOXP3+CD73+CD39+Tregs与癌性ascs和正常ascs共培养后均扩增,仅癌性ascs存在时扩增差异有统计学意义(P<0.05)。正常或癌性ascs存在时,T细胞产生的IL-10、IL-17和TGF-β均增加;但仅对癌- ascs的IL-10和TGF-β有显著影响(P<0.05)。结论进一步证实了ASCs对T淋巴细胞的免疫抑制作用,并将其导向可能支持免疫逃避和肿瘤生长的特异性调节表型。
{"title":"Helios, CD73 and CD39 Induction in Regulatory T Cells Exposed to Adipose Derived Mesenchymal Stem Cells","authors":"Maryam Fakhimi, Abdolrassul Talei, A. Ghaderi, M. Habibagahi, M. Razmkhah","doi":"10.22074/cellj.2020.6313","DOIUrl":"https://doi.org/10.22074/cellj.2020.6313","url":null,"abstract":"Objective Mesenchymal stem cells (MSCs) have prominent immunomodulatory roles in the tumor microenvironment. The current study intended to elucidate Treg subsets and their cytokines after exposing naïve T lymphocytes to adipose- derived MSCs (ASCs). Materials and Methods In this experimental study, to obtain ASCs, breast adipose tissues of a breast cancer patient and a normal individual were used. Magnetic cell sorting (MACS) was employed for purifying naïve CD4+T cells from peripheral blood of five healthy donors. Naïve CD4+T cells were then co-cultured with ASCs for five days. The phenotype of regulatory T cells (Tregs) and production of interleukine-10 (IL-10), transforming growth factor beta (TGF-β) and IL-17 were assessed using flow cytometry and ELISPOT assays, respectively. Results CD4+CD25-FOXP3+CD45RA+Tregs were expanded in the presence of cancer ASCs but CD4+CD25+Foxp3+CD45RA+regulatory T cells were up-regulated in the presence of both cancer- and normal-ASCs. This up-regulation was statistically significant in breast cancer-ASCs compared to the cells cultured without ASCs (P=0.002). CD4+CD25+ FOXP3+Helios+, CD4+CD25-FOXP3+Helios+and CD25+FOXP3+CD73+CD39+Tregs were expanded after co-culturing of T cells with both cancer-ASCs and normal-ASCs, while they were statistically significant only in the presence of cancer-ASCs (P<0.05). Production of IL-10, IL-17 and TGF-β by T cells was increased in the presence of either normal- or cancer-ASCs; however, significant effect was only observed in the IL-10 and TGF-β of cancer-ASCs (P<0.05). Conclusion The results further confirm the immunosuppressive impacts of ASCs on T lymphocytes and direct them to specific regulatory phenotypes which may support immune evasion and tumor growth.","PeriodicalId":9692,"journal":{"name":"Cell Journal (Yakhteh)","volume":"5 1","pages":"236 - 244"},"PeriodicalIF":0.0,"publicationDate":"2019-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73540548","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
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Cell Journal (Yakhteh)
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