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Biosimilar Gene Therapy: Investigational Assessment of Secukinumab Gene Therapy 生物类似药基因治疗:Secukinumab基因治疗的研究评估
Pub Date : 2019-07-31 DOI: 10.22074/cellj.2020.6309
A. Fallah, H. Estiri, Elizabeth L. Parrish, Mansoureh Soleimani, S. Zeinali, A. Zadeh-Vakili
Objective Tumor necrosis factor-alpha (TNF-α), checkpoint inhibitors, and interleukin-17 (IL-17) are critical targets in inflammation and autoimmune diseases. Monoclonal antibodies (mAbs) have a successful portfolio in the treatment of chronic diseases. With the current progress in stem cells and gene therapy technologies, there is the promise of replacing costly mAbs production in bioreactors with a more direct and cost-effective production method inside the patient’s cells. In this paper we examine the results of an investigational assessment of secukinumab gene therapy. Materials and Methods In this experimental study, the DNA sequence of the heavy and light chains of secukinumab antibodies were cloned in a lentiviral vector. Human chorionic villous mesenchymal stem cells (CMSCs) were isolated and characterized. After lentiviral packaging and titration, part of the recombinant viruses was used for transduction of the CMSCs and the other part were applied for systemic gene therapy. The engineered stem cells and recombinant viruses were applied for ex vivo and in vivo gene therapy, respectively, in different groups of rat models. In vitro and in vivo secukinumab expression was confirmed with quantitative real-time polymerase chain reaction (qRT-PCR), western blot, and ELISA by considering the approved secukinumab as the standard reference. Results Cell differentiation assays and flow cytometry of standard biomarkers confirmed the multipotency of the CMSCs. Western blot and qRT-PCR confirmed in vitro gene expression of secukinumab at both the mRNA and protein level. ELISA testing of serum from treated rat models confirmed mAb overexpression for both in vivo and ex vivo gene therapies. Conclusion In this study, a lentiviral-mediated ex vivo and in vivo gene therapy was developed to provide a moderate dose of secukinumab in rat models. Biosimilar gene therapy is an attractive approach for the treatment of autoimmune disorders, cancers and other chronic diseases.
肿瘤坏死因子-α (TNF-α)、检查点抑制剂和白细胞介素-17 (IL-17)是炎症和自身免疫性疾病的关键靶点。单克隆抗体(mab)在慢性疾病的治疗中具有成功的组合。随着干细胞和基因治疗技术的进步,有希望用一种更直接、更经济的方法在患者细胞内取代生物反应器中昂贵的单克隆抗体生产。在这篇论文中,我们研究了一项关于secukinumab基因治疗的研究评估结果。材料与方法在慢病毒载体上克隆了secukinumab抗体重链和轻链的DNA序列。分离并鉴定了人绒毛膜绒毛间充质干细胞(CMSCs)。经过慢病毒包装和滴定后,一部分重组病毒用于CMSCs的转导,另一部分用于全身基因治疗。将工程干细胞和重组病毒分别应用于不同组大鼠模型的离体和体内基因治疗。以获批的secukinumab为标准参比,采用定量实时聚合酶链反应(qRT-PCR)、western blot、ELISA等方法确认secukinumab在体外和体内的表达。结果细胞分化实验和标准生物标志物的流式细胞术证实了骨髓间充质干细胞的多能性。Western blot和qRT-PCR在mRNA和蛋白水平上证实了体外secukinumab基因的表达。ELISA检测治疗大鼠模型的血清,证实单抗在体内和体外基因治疗中均过表达。在本研究中,开发了一种慢病毒介导的体外和体内基因治疗方法,为大鼠模型提供中等剂量的secukinumab。生物仿制药基因治疗是治疗自身免疫性疾病、癌症和其他慢性疾病的一种有吸引力的方法。
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引用次数: 1
Histological Evidence for Therapeutic Induction of Angiogenesis Using Mast Cells and Platelet-Rich Plasma within A Bioengineered Scaffold following Rat Hindlimb Ischemia 生物工程支架内使用肥大细胞和富血小板血浆诱导大鼠后肢缺血后血管生成的组织学证据
Pub Date : 2019-07-31 DOI: 10.22074/cellj.2020.6287
A. Karimi, R. Shahrooz, Rahim Hobbenagh, R. Mohammadi, N. Delirezh, S. Amani, J. Garssen, E. Mortaz, I. M Adcock
Objective Peripheral arterial disease results from obstructed blood flow in arteries and increases the risk of amputation in acute cases. Therapeutic angiogenesis using bioengineered tissues composed of a chitosan scaffold that was enriched with mast cells (MCs) and/or platelet-rich plasma (PRP) was used to assess the formation of vascular networks and subsequently improved the functional recovery following hindlimb ischemia. This study aimed to find an optimal approach for restoring local vascularization. Materials and Methods In this experimental study, thirty rats were randomly divided into six experimental groups: a. Ischemic control group with right femoral artery transection, b. Ischemia with phosphate-buffered saline (PBS) control group, c. Ischemia with chitosan scaffold, d. Ischemia with chitosan and MCs, e. Ischemia with chitosan and PRP, and f. Ischemia with chitosan, PRP, and MCs. The left hind limbs served as non-ischemic controls. The analysis of capillary density, arterial diameter, histomorphometric analysis and immunohistochemistry at the transected locations and in gastrocnemius muscles was performed. Results The group treated with chitosan/MC significantly increased capillary density and the mean number of large blood vessels at the site of femoral artery transection compared with other experimental groups (P<0.05). The treatment with chitosan/MC also significantly increased the muscle fiber diameter and the capillary-to-muscle fiber ratio in gastrocnemius muscles compared with all other ischemic groups (P<0.05). Conclusion These findings suggested that chitosan and MCs together could offer a new approach for the therapeutic induction of angiogenesis in cases of peripheral arterial diseases.
目的外周动脉疾病是由动脉血流阻塞引起的,增加了急性病例截肢的风险。利用富含肥大细胞(MCs)和/或富血小板血浆(PRP)的壳聚糖支架组成的生物工程组织进行治疗性血管生成,以评估血管网络的形成,并随后改善后肢缺血后的功能恢复。本研究旨在寻找恢复局部血管化的最佳方法。材料与方法将30只大鼠随机分为6个实验组:a.右股动脉缺血对照组,b.磷酸缓冲盐水(PBS)缺血对照组,c.壳聚糖支架缺血组,d.壳聚糖和MCs缺血组,e.壳聚糖和PRP缺血组,f.壳聚糖、PRP和MCs缺血组。左后肢作为非缺血对照。对横断部位及腓肠肌的毛细血管密度、动脉直径、组织形态学分析及免疫组织化学进行分析。结果与其他实验组相比,壳聚糖/MC组大鼠股动脉横断部位毛细血管密度和平均大血管数显著增加(P<0.05)。壳聚糖/MC组与其他缺血组相比,显著增加了腓肠肌肌纤维直径和毛细血管/肌纤维比(P<0.05)。结论壳聚糖与MCs联合应用可为外周动脉病变诱导血管生成提供新的治疗途径。
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引用次数: 5
Chitosan Hydrogel Supports Integrity of Ovarian Follicles during In Vitro Culture: A Preliminary of A Novel Biomaterial for Three Dimensional Culture of Ovarian Follicles 壳聚糖水凝胶在体外培养中支持卵巢卵泡的完整性:一种用于卵巢卵泡三维培养的新型生物材料的初步研究
Pub Date : 2019-07-31 DOI: 10.22074/cellj.2020.6393
F. Hassani, B. Ebrahimi, A. Moini, Ali Ghiaseddin, M. Bazrafkan, G. Hassanzadeh, M. Rezazadeh Valojerdi
Objective Testing novel biomaterials for the three dimensional (3D) culture of ovarian follicles may ultimately lead to a culture model which can support the integrity of follicles during in vitro culture (IVC). The present study reports the first application of a chitosan (CS) hydrogel in culturing mouse preantral follicles. Materials and Methods In this interventional experiment study, CS hydrogels with the concentrations of 0.5, 1, and 1.5% were first tested for fourier transform infrared spectroscopy (FT-IR), Compressive Strength, viscosity, degradation, swelling ratio, 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) cytotoxicity and live/dead assay. Thereafter, mouse ovarian follicles were encapsulated in optimum concentration of CS (1%) and compared with those in alginate hydrogel. The follicular morphology, quality of matured oocyte and steroid secretion in both CS and alginate were assessed by enzyme-linked immunosorbent assay (ELISA). The expression of folliculogenesis, endocrine, and apoptotic related genes was also evaluated by quantitative real-time polymerase chain reaction (qRT-PCR) and compared with day that in 0. Results The rates of survival, and diameter of the follicles, secretion of estradiol, normal appearance of meiotic spindle and chromosome alignment were all higher in CS group compared with those in alginate group (P≤0.05). The expression of Cyp19a1 and Lhcgr in CS group was significantly higher than that of the alginate group (P≤0.05). Conclusion The results showed that CS is a permissive hydrogel and has a beneficial effect on encapsulation of ovarian follicle and its further development during 3D culture.
目的测试用于卵泡三维培养的新型生物材料,最终建立一种能够在体外培养(IVC)中支持卵泡完整性的培养模型。本研究报道了壳聚糖(CS)水凝胶在小鼠腔前卵泡培养中的首次应用。材料与方法在本干涉性实验研究中,首先对浓度为0.5、1和1.5%的CS水凝胶进行傅里叶变换红外光谱(FT-IR)、抗压强度、粘度、降解、溶胀率、3-(4,5-二甲基噻唑-2-基)-2,5-二苯基溴化四唑(MTT)细胞毒性和活/死测定。然后用最佳浓度CS(1%)包封小鼠卵泡,并与海藻酸盐水凝胶包封小鼠卵泡进行比较。采用酶联免疫吸附试验(ELISA)对CS和海藻酸盐组的卵泡形态、成熟卵母细胞质量和类固醇分泌情况进行观察。采用实时荧光定量聚合酶链式反应(qRT-PCR)检测大鼠卵泡发生、内分泌及凋亡相关基因的表达,并与对照组比较。结果CS组的成活率、卵泡直径、雌二醇分泌、减数分裂纺锤体正常外观及染色体排列均高于海藻酸盐组(P≤0.05)。CS组Cyp19a1和Lhcgr的表达量显著高于海藻酸盐组(P≤0.05)。结论CS是一种允许型水凝胶,在卵泡三维培养过程中有利于卵泡的包封和进一步发育。
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引用次数: 22
A Review on The Protective Effects of Metformin in Sepsis-Induced Organ Failure 二甲双胍对脓毒症致器官衰竭保护作用的研究进展
Pub Date : 2019-07-31 DOI: 10.22074/cellj.2020.6286
Fatima Ismail Hassan, T. Didari, Fazlullah Khan, K. Niaz, M. Mojtahedzadeh, M. Abdollahi
Despite advances in sepsis management, it remains a major intensive-care-unit (ICU) concern. From new prospective, positive effects of metformin, such as anti-oxidant and anti-inflammatory properties are considered potentially beneficial properties for management of septic patients. This article reviewed the potential ameliorative effects of metformin in sepsis-induced organ failure. Information were retrieved from PubMed, Scopus, Embase, and Google Scholar. Multi-organ damage, oxidative stress, inflammatory cytokine stimulation, and altered circulation are hallmarks of sepsis. Metformin exerts its effect via adenosine monophosphate-activated protein kinase (AMPK) activation. It improves sepsis-induced organ failure by inhibiting the production of reactive oxygen species (ROS) and pro-inflammatory cytokines, preventing the activation of transcription factors related to inflammation, decreasing neutrophil accumulation/infiltration, and also maintaining mitochondrial membrane potential. Studies reported the safety of metformin therapeutic doses, with no evidence of lactic acidosis, in septic patients.
尽管在脓毒症管理方面取得了进展,但它仍然是重症监护病房(ICU)关注的主要问题。从新的角度来看,二甲双胍的积极作用,如抗氧化和抗炎特性,被认为是治疗脓毒症患者的潜在有益特性。本文综述了二甲双胍在脓毒症引起的器官衰竭中的潜在改善作用。信息检索自PubMed、Scopus、Embase和Google Scholar。多器官损伤、氧化应激、炎症细胞因子刺激和循环改变是败血症的标志。二甲双胍通过激活单磷酸腺苷活化蛋白激酶(AMPK)发挥其作用。它通过抑制活性氧(ROS)和促炎细胞因子的产生,阻止炎症相关转录因子的激活,减少中性粒细胞的积累/浸润,维持线粒体膜电位,改善败血症诱导的器官衰竭。研究报告了二甲双胍治疗剂量的安全性,没有证据表明在脓毒症患者中发生乳酸性酸中毒。
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引用次数: 40
Regulatory Network Analysis to Reveal Important miRNAs and Genes in Non-Small Cell Lung Cancer 调控网络分析揭示非小细胞肺癌的重要mirna和基因
Pub Date : 2019-07-31 DOI: 10.22074/cellj.2020.6281
Xingni Zhou, Zhenghua Zhang, Xiaohua Liang
Objective Lung cancer has high incidence and mortality rate, and non-small cell lung cancer (NSCLC) takes up approximately 85% of lung cancer cases. This study is aimed to reveal miRNAs and genes involved in the mechanisms of NSCLC. Materials and Methods In this retrospective study, GSE21933 (21 NSCLC samples and 21 normal samples), GSE27262 (25 NSCLC samples and 25 normal samples), GSE43458 (40 NSCLC samples and 30 normal samples) and GSE74706 (18 NSCLC samples and 18 normal samples) were searched from gene expression omnibus (GEO) database. The differentially expressed genes (DEGs) were screened from the four microarray datasets using MetaDE package, and then conducted with functional annotation using DAVID tool. Afterwards, protein-protein interaction (PPI) network and module analyses were carried out using Cytoscape software. Based on miR2Disease and Mirwalk2 databases, microRNAs (miRNAs)-DEG pairs were selected. Finally, Cytoscape software was applied to construct miRNA-DEG regulatory network. Results Totally, 727 DEGs (382 up-regulated and 345 down-regulated) had the same expression trends in all of the four microarray datasets. In the PPI network, TP53 and FOS could interact with each other and they were among the top 10 nodes. Besides, five network modules were found. After construction of the miRNA-gene network, top 10 miRNAs (such as hsa-miR-16-5p, hsa-let-7b-5p, hsa-miR-15a-5p, hsa-miR-15b-5p, hsa-let-7a-5p and hsa-miR-34a- 5p) and genes (such as HMGA1, BTG2, SOD2 and TP53) were selected. Conclusion These miRNAs and genes might contribute to the pathogenesis of NSCLC.
肺癌的发病率和死亡率都很高,其中非小细胞肺癌(NSCLC)约占肺癌病例的85%。本研究旨在揭示参与NSCLC发病机制的mirna和基因。材料与方法本回顾性研究从基因表达omnibus (GEO)数据库中检索GSE21933(21例NSCLC样本和21例正常样本)、GSE27262(25例NSCLC样本和25例正常样本)、GSE43458(40例NSCLC样本和30例正常样本)和GSE74706(18例NSCLC样本和18例正常样本)。使用MetaDE软件包从四个微阵列数据集中筛选差异表达基因(deg),然后使用DAVID工具进行功能注释。随后,利用Cytoscape软件进行蛋白-蛋白相互作用(PPI)网络和模块分析。基于miR2Disease和Mirwalk2数据库,选择microRNAs (miRNAs)-DEG对。最后利用Cytoscape软件构建miRNA-DEG调控网络。结果共有727个deg(382个上调,345个下调)在所有4个微阵列数据集中表达趋势相同。在PPI网络中,TP53和FOS可以相互作用,处于前10位。此外,还发现了5个网络模块。构建mirna -基因网络后,选择前10位mirna(如hsa-miR-16-5p、hsa-let-7b-5p、hsa-miR-15a-5p、hsa-let-7a-5p和hsa-miR-34a- 5p)和基因(如HMGA1、BTG2、SOD2和TP53)。结论这些mirna和基因可能参与了NSCLC的发病机制。
{"title":"Regulatory Network Analysis to Reveal Important miRNAs and Genes in Non-Small Cell Lung Cancer","authors":"Xingni Zhou, Zhenghua Zhang, Xiaohua Liang","doi":"10.22074/cellj.2020.6281","DOIUrl":"https://doi.org/10.22074/cellj.2020.6281","url":null,"abstract":"Objective Lung cancer has high incidence and mortality rate, and non-small cell lung cancer (NSCLC) takes up approximately 85% of lung cancer cases. This study is aimed to reveal miRNAs and genes involved in the mechanisms of NSCLC. Materials and Methods In this retrospective study, GSE21933 (21 NSCLC samples and 21 normal samples), GSE27262 (25 NSCLC samples and 25 normal samples), GSE43458 (40 NSCLC samples and 30 normal samples) and GSE74706 (18 NSCLC samples and 18 normal samples) were searched from gene expression omnibus (GEO) database. The differentially expressed genes (DEGs) were screened from the four microarray datasets using MetaDE package, and then conducted with functional annotation using DAVID tool. Afterwards, protein-protein interaction (PPI) network and module analyses were carried out using Cytoscape software. Based on miR2Disease and Mirwalk2 databases, microRNAs (miRNAs)-DEG pairs were selected. Finally, Cytoscape software was applied to construct miRNA-DEG regulatory network. Results Totally, 727 DEGs (382 up-regulated and 345 down-regulated) had the same expression trends in all of the four microarray datasets. In the PPI network, TP53 and FOS could interact with each other and they were among the top 10 nodes. Besides, five network modules were found. After construction of the miRNA-gene network, top 10 miRNAs (such as hsa-miR-16-5p, hsa-let-7b-5p, hsa-miR-15a-5p, hsa-miR-15b-5p, hsa-let-7a-5p and hsa-miR-34a- 5p) and genes (such as HMGA1, BTG2, SOD2 and TP53) were selected. Conclusion These miRNAs and genes might contribute to the pathogenesis of NSCLC.","PeriodicalId":9692,"journal":{"name":"Cell Journal (Yakhteh)","volume":"87 1","pages":"459 - 466"},"PeriodicalIF":0.0,"publicationDate":"2019-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81364527","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: 26
The Use of ß-Elemene to Enhance Radio Sensitization of A375 Human Melanoma Cells ß-榄香烯增强A375人黑色素瘤细胞的放射致敏性
Pub Date : 2019-07-31 DOI: 10.22074/cellj.2020.6326
Zahra Balavandi, A. Neshasteh-Riz, Fereshteh Koosha, Samira Eynali, M. Hoormand, M. Shahidi
Objective Melanoma is the most malignant and severe type of skin cancer. It is a tumor with a high risk of metastasis and resistant to conventional treatment methods (surgery, radiotherapy, and chemotherapy). β-elemene is the most active constituent of Curcuma wenyujin which is a non-cytotoxic antitumor drug, proved to be effective in different types of cancers. The study aimed to investigate the therapeutic effects of β-elemene in combination with radiotherapy on A375 human melanoma. Materials and Methods In this experimental study, human melanoma cells were grown in the monolayer culture model. The procedure of the treatment was performed by the addition of different concentrations of β-elemene to the cells. Then, the cells were exposed to 2 and 4 Gy X-ray in different incubation times (24, 48, and 72 hours). The MTT assay was used for the determination of the cell viability. To study the rate of apoptosis response to treatments, the Annexin V/PI assay was carried out. Results The results of the MTT assay showed β-elemene reduced the cell proliferation in dose- and time-dependent manners in cells exposed to radiation. Flow cytometry analysis indicated that β-elemene was effective in the induction of apoptosis. Furthermore, the combination treatment with radiation remarkably decreased the cells proliferation ability and also enhanced apoptosis. For example, cell viability in a group exposed to 40 µg/ml of β-elemene was 80%, but combination treatment with 6 MV X beam at a dose of 2 Gy reduced the viability to 61%. Conclusion Our results showed that β-elemene reduced the proliferation of human melanoma cancer cell through apoptosis. Also, the results demonstrated that the radio sensitivity of A375 cell line was significantly enhanced by β-elemene. The findings of this study indicated the efficiency of β-elemene in treating melanoma cells and the necessity for further research in this field.
黑色素瘤是恶性程度最高、最严重的一种皮肤癌。它是一种转移风险高且对传统治疗方法(手术、放疗和化疗)有耐药性的肿瘤。β-榄香烯是姜黄文玉金中最有效的成分,是一种非细胞毒性的抗肿瘤药物,对不同类型的癌症均有疗效。本研究旨在探讨β-榄香烯联合放疗对A375人黑色素瘤的治疗效果。材料与方法本实验采用单层培养法培养人黑色素瘤细胞。处理过程是通过向细胞中添加不同浓度的β-榄香烯来完成的。然后,在不同的孵育时间(24、48和72小时)将细胞暴露于2和4 Gy x射线下。MTT法测定细胞活力。采用Annexin V/PI法研究细胞凋亡反应率。结果MTT实验结果显示,β-榄香烯对辐照细胞增殖具有剂量依赖性和时间依赖性。流式细胞术分析表明β-榄香烯具有诱导细胞凋亡的作用。此外,放射联合治疗显著降低了细胞的增殖能力,并促进了细胞凋亡。例如,暴露于40µg/ml β-榄香烯组的细胞存活率为80%,但在2 Gy剂量下的6 MV X射线联合处理将细胞存活率降低至61%。结论β-榄香烯通过凋亡抑制人黑色素瘤癌细胞的增殖。结果表明,β-榄香烯能显著提高A375细胞株的放射敏感性。本研究结果表明β-榄香烯治疗黑色素瘤细胞的有效性,以及在该领域进一步研究的必要性。
{"title":"The Use of ß-Elemene to Enhance Radio Sensitization of A375 Human Melanoma Cells","authors":"Zahra Balavandi, A. Neshasteh-Riz, Fereshteh Koosha, Samira Eynali, M. Hoormand, M. Shahidi","doi":"10.22074/cellj.2020.6326","DOIUrl":"https://doi.org/10.22074/cellj.2020.6326","url":null,"abstract":"Objective Melanoma is the most malignant and severe type of skin cancer. It is a tumor with a high risk of metastasis and resistant to conventional treatment methods (surgery, radiotherapy, and chemotherapy). β-elemene is the most active constituent of Curcuma wenyujin which is a non-cytotoxic antitumor drug, proved to be effective in different types of cancers. The study aimed to investigate the therapeutic effects of β-elemene in combination with radiotherapy on A375 human melanoma. Materials and Methods In this experimental study, human melanoma cells were grown in the monolayer culture model. The procedure of the treatment was performed by the addition of different concentrations of β-elemene to the cells. Then, the cells were exposed to 2 and 4 Gy X-ray in different incubation times (24, 48, and 72 hours). The MTT assay was used for the determination of the cell viability. To study the rate of apoptosis response to treatments, the Annexin V/PI assay was carried out. Results The results of the MTT assay showed β-elemene reduced the cell proliferation in dose- and time-dependent manners in cells exposed to radiation. Flow cytometry analysis indicated that β-elemene was effective in the induction of apoptosis. Furthermore, the combination treatment with radiation remarkably decreased the cells proliferation ability and also enhanced apoptosis. For example, cell viability in a group exposed to 40 µg/ml of β-elemene was 80%, but combination treatment with 6 MV X beam at a dose of 2 Gy reduced the viability to 61%. Conclusion Our results showed that β-elemene reduced the proliferation of human melanoma cancer cell through apoptosis. Also, the results demonstrated that the radio sensitivity of A375 cell line was significantly enhanced by β-elemene. The findings of this study indicated the efficiency of β-elemene in treating melanoma cells and the necessity for further research in this field.","PeriodicalId":9692,"journal":{"name":"Cell Journal (Yakhteh)","volume":"28 1","pages":"419 - 425"},"PeriodicalIF":0.0,"publicationDate":"2019-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81748918","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
Spermatogenesis Recovery Potentials after Transplantation of Adipose Tissue-Derived Mesenchymal Stem Cells Cultured with Growth Factors in Experimental Azoospermic Mouse Models 生长因子培养脂肪组织源性间充质干细胞在实验性无精子小鼠模型中移植后精子发生恢复的潜力
Pub Date : 2019-07-31 DOI: 10.22074/cellj.2020.6055
Masoumeh Eliyasi Dashtaki, M. Hemadi, G. Saki, J. Mohammadiasl, A. Khodadadi
Objective Approximately 1% of the male population suffers from obstructive or non-obstructive azoospermia. Previous in vitro studies have successfully differentiated mesenchymal stem cells (MSCs) into germ cells. Because of immune- modulating features, safety, and simple isolation, adipose tissue-derived MSCs (AT-MSCs) are good candidates for such studies. However, low availability is the main limitation in using these cells. Different growth factors have been investigated to overcome this issue. In the present study, we aimed to comparatively assess the performance of AT-MSCs cultured under the presence or absence of three different growth factors, epidermal growth factor (EGF), leukemia inhibitory factor (LIF) and glial cell line-derived neurotrophic factor (GDNF), following transplantation in testicular torsion-detorsion mice Materials and Methods This was an experimental study in which AT-MSCs were first isolated from male Naval Medical Research Institute (NMRI) mice. Then, the mice underwent testicular torsion-detorsion surgery and received bromodeoxyuridine (BrdU)-labeled AT-MSCs into the lumen of seminiferous tubules. The transplanted cells had been cultured in different conditioned media, containing the three growth factors and without them. The expression of germ cell-specific markers was evaluated with real-time polymerase chain reaction (PCR) and western-blot. Moreover, immunohistochemical staining was used to trace the labeled cells. Results The number of transplanted AT-MSCs resided in the basement membrane of seminiferous tubules significantly increased after 8 weeks. The expression levels of Gcnf and Mvh genes in the transplanted testicles by AT-MSCs cultured in the growth factors-supplemented medium was greater than those in the control group (P<0.001 and P<0.05, respectively). The expression levels of the c-Kit and Scp3 genes did not significantly differ from the control group. Conclusion Our findings showed that the use of EGF, LIF and GDNF to culture AT-MSCs can be very helpful in terms of MSC survival and localization.
目的约1%的男性患有梗阻性或非梗阻性无精子症。以前的体外研究已经成功地将间充质干细胞(MSCs)分化为生殖细胞。由于免疫调节的特点,安全性和简单的分离,脂肪组织来源的MSCs (AT-MSCs)是这类研究的良好候选者。然而,低可用性是使用这些单元的主要限制。研究了不同的生长因子来克服这个问题。在本研究中,我们旨在比较评估在表皮生长因子(EGF)、白血病抑制因子(LIF)和胶质细胞系来源的神经营养因子(GDNF)三种不同生长因子存在或不存在的情况下培养的AT-MSCs在睾丸扭转-扭转小鼠移植后的性能。材料和方法本实验首次从海军医学研究所(NMRI)雄性小鼠中分离AT-MSCs。然后,小鼠进行睾丸扭转-扭转手术,并将溴脱氧尿苷(BrdU)标记的AT-MSCs植入精小管管腔。移植细胞分别在含三种生长因子和不含三种生长因子的条件培养基中培养。采用实时聚合酶链反应(PCR)和western-blot检测生殖细胞特异性标志物的表达。此外,免疫组织化学染色法对标记细胞进行追踪。结果8周后,移植的AT-MSCs在输精管基底膜上的数量显著增加。在添加生长因子的培养基中培养的AT-MSCs移植睾丸中Gcnf和Mvh基因的表达水平高于对照组(P<0.001和P<0.05)。c-Kit和Scp3基因的表达水平与对照组无显著差异。我们的研究结果表明,使用EGF、LIF和GDNF培养AT-MSCs对MSC的存活和定位非常有帮助。
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引用次数: 4
Incorporation of Silver Sulfadiazine into An Electrospun Composite of Polycaprolactone as An Antibacterial Scaffold for Wound Healing in Rats 磺胺嘧啶银加入聚己内酯电纺丝复合材料作为大鼠伤口愈合的抗菌支架
Pub Date : 2019-07-31 DOI: 10.22074/cellj.2020.6341
Fereshte Nejaddehbashi, M. Hashemitabar, V. Bayati, E. Moghimipour, Jabraeel Movaffagh, M. Orazizadeh, M. Abbaspour
Objective Fabrication of an antibiotic-loaded scaffold with controlled release properties for wound dressing is one of tissue engineering challenges. The aim of this study was to evaluate the wound-healing effectiveness of 500-µm thick polycaprolactone (PCL) nanofibrous mat containing silver sulfadiazine (SSD) as an antibacterial agent. Materials and Methods In this experimental study, an electrospun membrane of PCL nanofibrous mat containing 0.3% weight SSD with 500 µm thickness, was prepared. Morphological and thermomechanical characteristics of nanofibers were evaluated. Drug content and drug release properties as well as the surface hydrophobicity of the nanofibrous membrane were determined. Antimicrobial properties and cellular viability of the scaffold were also examined. A full thickness wound of 400 mm2 was created in rats, to evaluate the wound-healing effects of PCL/SSD blend in comparison with PCL and vaseline gas used as the control group. Results SSD at a concentration of 0.3% improved physicochemical properties of PCL. This concentration of SSD did not inhibit the attachment of human dermal fibroblasts (HDFs) to nanofibers in vitro, but showed antibacterial activity against Gram-positive Staphylococcus aureus (ST) and Gram-negative Pseudomonas aeruginosa (PS). Overall, results showed that SSD improves characteristics of PCL nanofibrous film and improves wound-healing process in one-week earlier compared to control. Conclusion Cytotoxicity of SSD in fabricated nanofibrous mat is a critical challenge in designing an effective wound dressing that neutralizes cellular toxicity and improves antimicrobial activity. The PCL/SSD nanofibrous membrane with 500- µm thickness and 0.3% (w/v) SSD showed applicable characteristics as a wound dressing and it accelerated wound healing process in vivo.
目的制备一种具有控释特性的载抗生素支架用于伤口敷料是组织工程研究的难点之一。本研究的目的是评价含有磺胺嘧啶银(SSD)的500µm厚聚己内酯(PCL)纳米纤维毡的伤口愈合效果。材料与方法在本实验研究中,制备了一种含有0.3%重量SSD的PCL纳米纤维垫电纺膜,厚度为500µm。对纳米纤维的形态和热力学特性进行了评价。测定了纳米纤维膜的药物含量、药物释放性能和表面疏水性。研究了支架的抗菌性能和细胞活力。采用大鼠创面400mm2全厚创面,以PCL/SSD共混物与PCL和凡士林气体作为对照组比较,评价其创面愈合效果。结果0.3%浓度的固态硬盘改善了PCL的理化性能。在体外实验中,该浓度的固态固态没有抑制人真皮成纤维细胞(HDFs)对纳米纤维的附着,但对革兰氏阳性金黄色葡萄球菌(ST)和革兰氏阴性铜绿假单胞菌(PS)具有抗菌活性。总体而言,结果表明,与对照组相比,SSD改善了PCL纳米纤维膜的特性,并在一周内改善了伤口愈合过程。结论制备的纳米纤维垫中SSD的细胞毒性是设计有效的伤口敷料以中和细胞毒性和提高抗菌活性的关键挑战。厚度为500µm, SSD用量为0.3% (w/v)的PCL/SSD纳米纤维膜具有伤口敷料的应用特性,能在体内加速伤口愈合过程。
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引用次数: 26
Three-Dimensional Culture of Mouse Spermatogonial Stem Cells Using A Decellularised Testicular Scaffold 用脱细胞睾丸支架三维培养小鼠精原干细胞
Pub Date : 2019-07-31 DOI: 10.22074/cellj.2020.6304
Nasrin Majidi Gharenaz, M. Movahedin, Z. Mazaheri
Objective Applications of biological scaffolds for regenerative medicine are increasing. Such scaffolds improve cell attachment, migration, proliferation and differentiation. In the current study decellularised mouse whole testis was used as a natural 3 dimensional (3D) scaffold for culturing spermatogonial stem cells. Materials and Methods In this experimental study, adult mouse whole testes were decellularised using sodium dodecyl sulfate (SDS) and Triton X-100. The efficiency of decellularisation was determined by histology and DNA quantification. Masson’s trichrome staining, alcian blue staining, and immunohistochemistry (IHC) were done for validation of extracellular matrix (ECM) proteins. These scaffolds were recellularised through injection of mouse spermatogonial stem cells in to rete testis. Then, they were cultured for eight weeks. Recellularised scaffolds were assessed by histology, real-time polymerase chain reaction (PCR) and IHC. Results Haematoxylin-eosin (H&E) staining showed that the cells were successfully removed by SDS and Triton X-100. DNA content analysis indicated that 98% of the DNA was removed from the testis. This confirmed that our decellularisation protocol was efficient. Masson’s trichrome and alcian blue staining respectively showed that glycosaminoglycans (GAGs) and collagen are preserved in the scaffolds. IHC analysis confirmed the preservation of fibronectin, collagen IV, and laminin. MTT assay indicated that the scaffolds were cell-compatible. Histological evaluation of recellularised scaffolds showed that injected cells were settled on the basement membrane of the seminiferous tubule. Analyses of gene expression using real-time PCR indicated that expression of the Plzf gene was unchanged over the time while expression of Sycp3 gene was increased significantly (P=0.003) after eight weeks in culture, suggesting that the spermatogonial stem cells started meiosis. IHC confirmed that PLZF-positive cells (spermatogonial stem cells) and SYCP3-positive cells (spermatocytes) were present in seminiferous tubules. Conclusion Spermatogonial stem cells could proliferate and differentiated in to spermatocytes after being injected in the decellularised testicular scaffolds.
目的生物支架在再生医学中的应用日益广泛。这种支架可以改善细胞附着、迁移、增殖和分化。在目前的研究中,去细胞化的小鼠整个睾丸被用作培养精原干细胞的天然三维支架。材料与方法采用十二烷基硫酸钠(SDS)和Triton X-100对成年小鼠全睾丸进行脱细胞处理。通过组织学和DNA定量测定脱细胞效率。马松三色染色、阿利新蓝染色和免疫组化(IHC)验证细胞外基质(ECM)蛋白。这些支架是通过注射小鼠精原干细胞到尿道睾丸中再细胞化的。然后,将它们培养8周。采用组织学、实时聚合酶链反应(PCR)和免疫组化(IHC)对再细胞化支架进行评价。结果红木精-伊红(H&E)染色显示SDS和Triton X-100成功去除细胞。DNA含量分析显示98%的DNA都是从睾丸中提取的。这证实了我们的脱细胞方案是有效的。马松三色染色和阿利新蓝染色分别显示支架中保留了糖胺聚糖(GAGs)和胶原蛋白。免疫组化分析证实了纤维连接蛋白、IV型胶原和层粘连蛋白的保存。MTT试验表明支架具有细胞相容性。再细胞化支架的组织学评价表明,注射细胞在精小管基底膜上沉淀。实时荧光定量PCR分析显示,培养8周后,Plzf基因的表达量基本保持不变,而Sycp3基因的表达量显著增加(P=0.003),表明精原干细胞开始减数分裂。IHC证实,精小管中存在plzf阳性细胞(精原干细胞)和sycp3阳性细胞(精母细胞)。结论在去细胞化睾丸支架内注射精原干细胞后,可增殖分化为精母细胞。
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引用次数: 22
Investigation of Chromosomal Abnormalities and Microdeletion/ Microduplication(s) in Fifty Iranian Patients with Multiple Congenital Anomalies 50例伊朗多发性先天性畸形患者染色体异常和微缺失/微重复的调查
Pub Date : 2019-06-15 DOI: 10.22074/cellj.2019.6053
Akbar Mohammadzadeh, S. Akbaroghli, Ehsan Aghaei-Moghadam, N. Mahdieh, R. S. Badv, P. Jamali, R. Kariminejad, Z. Chavoshzadeh, S. Ghasemi Firouzabadi, Roxana Mansour Ghanaie, Ahoura Nozari, Sussan Banihashemi, F. Hadipour, Z. Hadipour, A. Kariminejad, H. Najmabadi, Y. Shafeghati, F. Behjati
Objective Major birth defects are inborn structural or functional anomalies with long-term disability and adverse impacts on individuals, families, health-care systems, and societies. Approximately 20% of birth defects are due to chromosomal and genetic conditions. Inspired by the fact that neonatal deaths are caused by birth defects in about 20 and 10% of cases in Iran and worldwide respectively, we conducted the present study to unravel the role of chromosome abnormalities, including microdeletion/microduplication(s), in multiple congenital abnormalities in a number of Iranian patients. Materials and Methods In this descriptive cross-sectional study, 50 sporadic patients with Multiple Congenital Anomalies (MCA) were selected. The techniques employed included conventional karyotyping, fluorescence in situ hybridization (FISH), multiplex ligation-dependent probe amplification (MLPA), and array comparative genomic hybridisation (array-CGH), according to the clinical diagnosis for each patient. Results Chromosomal abnormalities and microdeletion/microduplication(s) were observed in eight out of fifty patients (16%). The abnormalities proved to result from the imbalances in chromosomes 1, 3, 12, and 18 in four of the patients. However, the other four patients were diagnosed to suffer from the known microdeletions of 22q11.21, 16p13.3, 5q35.3, and 7q11.23. Conclusion In the present study, we report a patient with 46,XY, der(18)[12]/46,XY, der(18), +mar[8] dn presented with MCA associated with hypogammaglobulinemia. Given the patient’s seemingly rare and highly complex chromosomal abnormality and the lack of any concise mechanism presented in the literature to justify the case, we hereby propose a novel mechanism for the formation of both derivative and ring chromosome 18. In addition, we introduce a new 12q abnormality and a novel association of an Xp22.33 duplication with 1q43q44 deletion syndrome. The phenotype analysis of the patients with chromosome abnormality would be beneficial for further phenotype-genotype correlation studies.
重大出生缺陷是指先天性的结构或功能异常,具有长期残疾,对个人、家庭、卫生保健系统和社会产生不利影响。大约20%的出生缺陷是由染色体和遗传条件造成的。在伊朗和世界范围内,分别有20%和10%的新生儿死亡是由出生缺陷引起的,受到这一事实的启发,我们进行了本研究,以揭示染色体异常,包括微缺失/微重复,在一些伊朗患者的多种先天性异常中的作用。材料与方法本研究选取50例散发性多发性先天性异常(MCA)患者进行描述性横断面研究。根据每位患者的临床诊断,采用的技术包括常规核型、荧光原位杂交(FISH)、多重连接依赖探针扩增(MLPA)和阵列比较基因组杂交(array- cgh)。结果50例患者中有8例(16%)出现染色体异常和微缺失/微重复。事实证明,这些异常是由4名患者的1、3、12和18号染色体不平衡引起的。然而,另外四名患者被诊断患有已知的22q11.21、16p13.3、5q35.3和7q11.23的微缺失。在本研究中,我们报告了一例46,XY, der(18)[12]/46,XY, der(18), +mar[8] dn患者出现MCA合并低γ -球蛋白血症。鉴于患者的染色体异常看似罕见且高度复杂,并且在文献中缺乏任何简明的机制来证明这种情况,我们在此提出一种新的机制来形成衍生和环状染色体18。此外,我们引入了一个新的12q异常和Xp22.33重复与1q43q44缺失综合征的新关联。染色体异常患者的表型分析有助于进一步开展表型-基因型相关性研究。
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引用次数: 3
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Cell Journal (Yakhteh)
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