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Cancer treatment comes to age: from one-size-fits-all to next-generation sequencing (NGS) technologies. 癌症治疗进入新时代:从 "一刀切 "到新一代测序 (NGS) 技术。
IF 2.2 4区 工程技术
Bioimpacts Pub Date : 2024-01-01 Epub Date: 2023-12-23 DOI: 10.34172/bi.2023.29957
Sepideh Parvizpour, Hanieh Beyrampour-Basmenj, Jafar Razmara, Farhad Farhadi, Mohd Shahir Shamsir
{"title":"Cancer treatment comes to age: from one-size-fits-all to next-generation sequencing (NGS) technologies.","authors":"Sepideh Parvizpour, Hanieh Beyrampour-Basmenj, Jafar Razmara, Farhad Farhadi, Mohd Shahir Shamsir","doi":"10.34172/bi.2023.29957","DOIUrl":"10.34172/bi.2023.29957","url":null,"abstract":"<p><p>Cancer is one of the leading causes of death worldwide and one of the greatest challenges in extending life expectancy. The paradigm of one-size-fits-all medicine has already given way to the stratification of patients by disease subtypes, clinical characteristics, and biomarkers (stratified medicine). The introduction of next-generation sequencing (NGS) in clinical oncology has made it possible to tailor cancer patient therapy to their molecular profiles. NGS is expected to lead the transition to precision medicine (PM), where the right therapeutic approach is chosen for each patient based on their characteristics and mutations. Here, we highlight how the NGS technology facilitates cancer treatment. In this regard, first, precision medicine and NGS technology are reviewed, and then, the NGS revolution in precision medicine is described. In the sequel, the role of NGS in oncology and the existing limitations are discussed. The available databases and bioinformatics tools and online servers used in NGS data analysis are also reviewed. The review ends with concluding remarks.</p>","PeriodicalId":48614,"journal":{"name":"Bioimpacts","volume":"14 4","pages":"29957"},"PeriodicalIF":2.2,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11298019/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141894625","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A novel imidazo[1,2-a]pyridine derivative and its co-administration with curcumin exert anti-inflammatory effects by modulating the STAT3/NF-κB/iNOS/COX-2 signaling pathway in breast and ovarian cancer cell lines. 一种新型咪唑[1,2- A]吡啶衍生物及其与姜黄素共给药通过调节乳腺癌和卵巢癌细胞系中STAT3/NF-κB/iNOS/COX-2信号通路发挥抗炎作用
IF 2.6 4区 工程技术
Bioimpacts Pub Date : 2024-01-01 Epub Date: 2023-09-02 DOI: 10.34172/bi.2023.27618
Havva Afshari, Shokoofe Noori, Mitra Nourbakhsh, Azam Daraei, Mahsa Azami Movahed, Afshin Zarghi
{"title":"A novel imidazo[1,2-a]pyridine derivative and its co-administration with curcumin exert anti-inflammatory effects by modulating the STAT3/NF-κB/iNOS/COX-2 signaling pathway in breast and ovarian cancer cell lines.","authors":"Havva Afshari, Shokoofe Noori, Mitra Nourbakhsh, Azam Daraei, Mahsa Azami Movahed, Afshin Zarghi","doi":"10.34172/bi.2023.27618","DOIUrl":"10.34172/bi.2023.27618","url":null,"abstract":"<p><p></p><p><strong>Introduction: </strong>Imidazo[1,2-<i>a</i>]pyridine derivatives with diverse pharmacological properties and curcumin, as a potential natural anti-inflammatory compound, are promising compounds for cancer treatment. This study aimed to synthesize a novel imidazo[1,2-<i>a</i>]pyridine derivative, (MIA), and evaluate its anti-inflammatory activity and effects on nuclear factor-κB (NF-κB) and signal transducer and activator of transcription 3 (STAT3) pathways, and their target genes, alone and in combination with curcumin, in MDA-MB-231 and SKOV3 cell lines.</p><p><strong>Methods: </strong>We evaluated the interaction between imidazo[1,2-<i>a</i>]pyridine ligand, curcumin, and NF-κB p50 protein, using molecular docking studies. MTT assay was used to investigate the impacts of compounds on cell viability. To evaluate the NF-κB DNA binding activity and the level of inflammatory cytokines in response to the compounds, ELISA-based methods were performed. In addition, quantitative polymerase chain reaction (qPCR) and western blotting were carried out to analyze the expression of genes and investigate NF-κB and STAT3 signaling pathways.</p><p><strong>Results: </strong>Molecular docking studies showed that MIA docked into the NF-κB p50 subunit, and curcumin augmented its binding. The MTT assay results indicated that MIA and its combination with curcumin reduced cell viability. According to the results of the ELISA-based methods, MIA lowered the levels of inflammatory cytokines and suppressed NF-κB activity. In addition, real-time PCR and Griess test results showed that the expression of cyclooxygenase-2 (COX-2) and inducible NO synthase (iNOS) genes, and nitrite production were reduced by MIA. Furthermore, the western blotting analysis demonstrated that MIA increased the expression of inhibitory κB (IκBα) and B-cell lymphoma 2 (Bcl-2)-associated X proteins (BAX), and suppressed the STAT3 phosphorylation, and Bcl-2 expression. Our findings revealed that curcumin had a potentiating role and enhanced all the anti-inflammatory effects of MIA.</p><p><strong>Conclusion: </strong>This study indicated that the anti-inflammatory activity of MIA is exerted by suppressing the NF-κB and STAT3 signaling pathways in MDA-MB-231 and SKOV3 cancer cell lines.</p>","PeriodicalId":48614,"journal":{"name":"Bioimpacts","volume":"1 1","pages":"27618"},"PeriodicalIF":2.6,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10945297/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41514226","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Synthesis and characterization of a magnetic bacterial cellulose-chitosan nanocomposite and evaluation of its applicability for osteogenesis. 磁性细菌纤维素-壳聚糖纳米复合材料的合成与表征及其在成骨过程中的适用性评估
IF 2.2 4区 工程技术
Bioimpacts Pub Date : 2024-01-01 Epub Date: 2024-03-24 DOI: 10.34172/bi.2024.30159
Nahid Rezazadeh, Effat Alizadeh, Somaieh Soltani, Soodabeh Davaran, Neda Esfandiari
{"title":"Synthesis and characterization of a magnetic bacterial cellulose-chitosan nanocomposite and evaluation of its applicability for osteogenesis.","authors":"Nahid Rezazadeh, Effat Alizadeh, Somaieh Soltani, Soodabeh Davaran, Neda Esfandiari","doi":"10.34172/bi.2024.30159","DOIUrl":"10.34172/bi.2024.30159","url":null,"abstract":"<p><p></p><p><strong>Introduction: </strong>Natural biopolymers are used for various purposes in healthcare, such as tissue engineering, drug delivery, and wound healing. Bacterial cellulose and chitosan were preferred in this study due to their non-cytotoxic, biodegradable, biocompatible, and non-inflammatory properties. The study reports the development of a magnetic bacterial cellulose-chitosan (BC-CS-Fe<sub>3</sub>O<sub>4</sub>) nanocomposite that can be used as a biocompatible scaffold for tissue engineering. Iron oxide nanoparticles were included in the composite to provide superparamagnetic properties that are useful in a variety of applications, including osteogenic differentiation, magnetic imaging, drug delivery, and thermal induction for cancer treatment.</p><p><strong>Methods: </strong>The magnetic nanocomposite was prepared by immersing Fe<sub>3</sub>O<sub>4</sub> in a mixture of bacterial cellulose-chitosan scaffold and then freeze-drying it. The resulting nanocomposite was characterized using FE-SEM and FTIR techniques. The swelling ratio and mechanical strength of the scaffolds were evaluated experimentally. The biodegradability of the scaffolds was assessed using PBS for 8 weeks at 37°C. The cytotoxicity and osteogenic differentiation of the nanocomposite were studied using human adipose-derived mesenchymal stem cells (ADSCs) and alizarin red staining. One-way ANOVA with Tukey's multiple comparisons test was used for statistical analysis.</p><p><strong>Results: </strong>The FTIR spectra demonstrated the formation of bonds between functional groups of nanoparticles. FE-SEM images showed the integrity of the fibrillar network. The magnetic nanocomposite has the highest swelling ratio (2445% ± 23.34) and tensile strength (5.08 MPa). After 8 weeks, the biodegradation ratios of BC, BC-CS, and BC-CS-Fe<sub>3</sub>O<sub>4</sub> scaffolds were 0.75% ± 0.35, 2.5% ± 0.1, and 9.5% ± 0.7, respectively. Magnetic nanocomposites have low toxicity (<i>P</i> < 0.0001) and higher osteogenic potential compared to other scaffolds.</p><p><strong>Conclusion: </strong>Based on its high tensile strength, low water absorption, suitable degradability, low cytotoxicity, and high ability to induce an increase in calcium deposits by stem cells, the magnetic BC-CS-Fe<sub>3</sub>O<sub>4</sub> nanocomposite scaffold can be a suitable candidate as a biomaterial for osteogenic differentiation.</p>","PeriodicalId":48614,"journal":{"name":"Bioimpacts","volume":"14 6","pages":"30159"},"PeriodicalIF":2.2,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11530965/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142570243","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
New approach to generating of human monoclonal antibodies specific to the proteolytic domain of botulinum neurotoxin A. 生成针对肉毒杆菌神经毒素 A 蛋白水解域的特异性人类单克隆抗体的新方法。
IF 2.2 4区 工程技术
Bioimpacts Pub Date : 2024-01-01 Epub Date: 2023-12-30 DOI: 10.34172/bi.2023.27680
Marina Vladimirovna Silkina, Alena Sergeevna Kartseva, Alena Konstantinovna Riabko, Mariia Aleksandrovna Makarova, Metkhun Madibronovich Rogozin, Yana Olegovna Romanenko, Igor Georgievich Shemyakin, Ivan Alekseevich Dyatlov, Victoria Valerievna Firstova
{"title":"New approach to generating of human monoclonal antibodies specific to the proteolytic domain of botulinum neurotoxin A.","authors":"Marina Vladimirovna Silkina, Alena Sergeevna Kartseva, Alena Konstantinovna Riabko, Mariia Aleksandrovna Makarova, Metkhun Madibronovich Rogozin, Yana Olegovna Romanenko, Igor Georgievich Shemyakin, Ivan Alekseevich Dyatlov, Victoria Valerievna Firstova","doi":"10.34172/bi.2023.27680","DOIUrl":"10.34172/bi.2023.27680","url":null,"abstract":"<p><p></p><p><strong>Introduction: </strong>Botulinum neurotoxins (BoNTs) cause botulism and are the most potent natural toxins known. Immunotherapy with neutralizing monoclonal antibodies (MAbs) is considered to be the most effective immediate response to BoNT exposure. Hybridoma technology remains the preferred method for producing MAbs with naturally paired immunoglobulin genes and with preserved innate functions of immune cells. The affinity-matured human antibody repertoire may be ideal as a source for antibody therapeutics against BoNTs. In an effort to develop novel BoNT type A (BoNT/A) immunotherapeutics, sorted by flow cytometry plasmablasts and activated memory B cells from a donor repeatedly injected with BoNT/A for aesthetic botulinum therapy could be used due to obtain hybridomas producing native antibodies.</p><p><strong>Methods: </strong>Plasmablasts and activated memory B-cells were isolated from whole blood collected 7 days after BoNT/A injection and sorted by flow cytometry. The sorted cells were then electrofused with the K6H6/B5 cell line, resulting in a producer of native human monoclonal antibodies (huMAbs). The 3 antibodies obtained were then purified by affinity chromatography, analyzed for binding by Western blot assay and neutralization by FRET assay.</p><p><strong>Results: </strong>We have succeeded in creating 3 hybridomas that secrete huMAbs specific to native BoNT/A and the proteolytic domain (LC) of BoNT/A. The 1B9 antibody also directly inhibited BoNT/A catalytic activity <i>in vitro</i>.</p><p><strong>Conclusion: </strong>The use activated plasmablasts and memory B-cells isolated at the peak of the immune response (at day 7 of immunogenesis) that have not yet completed the terminal stage of differentiation but have undergone somatic hypermutation for hybridization allows us to obtain specific huMAbs even when the immune response of the donor is weak (with low levels of specific antibodies and specific B-cells in blood). A BoNT/A LC-specific antibody is capable of effectively inhibiting BoNT/A by mechanisms not previously associated with antibodies that neutralize BoNT. Antibodies specific to BoNT LC can be valuable components of a mixture of antibodies against BoNT exposure.</p>","PeriodicalId":48614,"journal":{"name":"Bioimpacts","volume":"14 4","pages":"27680"},"PeriodicalIF":2.2,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11298023/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141894629","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Interaction of toll-like receptors and ACE-2 with different variants of SARS-CoV-2: A computational analysis. 收费样受体和 ACE-2 与 SARS-CoV-2 不同变种的相互作用:计算分析。
IF 2.2 4区 工程技术
Bioimpacts Pub Date : 2024-01-01 Epub Date: 2024-01-06 DOI: 10.34172/bi.2024.30150
Azadeh Zahmatkesh, Elham Salmasi, Reza Gholizadeh
{"title":"Interaction of toll-like receptors and ACE-2 with different variants of SARS-CoV-2: A computational analysis.","authors":"Azadeh Zahmatkesh, Elham Salmasi, Reza Gholizadeh","doi":"10.34172/bi.2024.30150","DOIUrl":"10.34172/bi.2024.30150","url":null,"abstract":"<p><p></p><p><strong>Introduction: </strong>Computational studies were performed to investigate the unknown status of endosomal and cell surface receptors in SARS-CoV-2 infection. The interactions between Toll-like receptors (TLRs)- 4/7/8/9 or ACE2 receptor and different SARS-CoV-2 variants were investigated.</p><p><strong>Methods: </strong>The RNA motifs for TLR7, TLR8 and a CpG motif for TLR9 were analyzed in different variants. Molecular docking and molecular dynamics (MD) simulations were performed to investigate receptor-ligand interactions.</p><p><strong>Results: </strong>The number of motifs recognized by TLR7/8/9 in the Alpha, Delta and Iranian variants was lower than in the wild type (WT). Docking analysis revealed that the Alpha, Delta and some Iranian spike variants had a higher affinity for ACE2 and TLR4 than the WT, which may account for their higher transmission rate. The MD simulation also showed differences in stability and structure size between the variants and the WT, indicating potential variations in viral load.</p><p><strong>Conclusion: </strong>It appears that Alpha and some Iranian isolates are the variants of concern due to their higher transmissibility and rapid spread. The Delta mutant is also a variant of concern, not only because of its closer interaction with ACE2, but also with TLR4. Our results emphasize the importance of ACE2 and TLR4, rather than endosomal TLRs, in mediating the effects of different viral mutations and suggest their potential therapeutic applications.</p>","PeriodicalId":48614,"journal":{"name":"Bioimpacts","volume":"14 4","pages":"30150"},"PeriodicalIF":2.2,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11298020/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141894628","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
COVID-19: An overview on possible transmission ways, sampling matrices and diagnosis. COVID-19:可能的传播途径、采样矩阵和诊断概述。
IF 2.2 4区 工程技术
Bioimpacts Pub Date : 2024-01-01 Epub Date: 2024-03-12 DOI: 10.34172/bi.2024.29968
Elina Armani Khatibi, Nastaran Farshbaf Moghimi, Elaheh Rahimpour
{"title":"COVID-19: An overview on possible transmission ways, sampling matrices and diagnosis.","authors":"Elina Armani Khatibi, Nastaran Farshbaf Moghimi, Elaheh Rahimpour","doi":"10.34172/bi.2024.29968","DOIUrl":"10.34172/bi.2024.29968","url":null,"abstract":"<p><p>COVID-19 is an RNA virus belonging to the SARS family of viruses and includes a wide range of symptoms along with effects on other body organs in addition to the respiratory system. The high speed of transmission, severe complications, and high death rate caused scientists to focus on this disease. Today, many different investigation types are performed on COVID-19 from various points of view in the literature. This review summarizes most of them to provide a useful guideline for researchers in this field. After a general introduction, this review is divided into three parts. In the first one, various transmission ways COVID-19 are classified and explained in detail. The second part reviews the used biological samples for the detection of virus and the final section describes the various methods reported for the diagnosis of COVID-19 in various biological matrices.</p>","PeriodicalId":48614,"journal":{"name":"Bioimpacts","volume":"14 6","pages":"29968"},"PeriodicalIF":2.2,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11530968/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142570240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Integrating rapamycin with novel PI3K/Akt/mTOR inhibitor microRNAs on NOTCH1-driven T-cell acute lymphoblastic leukemia (T-ALL). 将雷帕霉素与新型 PI3K/Akt/mTOR 抑制剂 microRNAs 结合应用于 NOTCH1 驱动的 T 细胞急性淋巴细胞白血病(T-ALL)。
IF 2.2 4区 工程技术
Bioimpacts Pub Date : 2024-01-01 Epub Date: 2023-11-28 DOI: 10.34172/bi.2023.28870
Fateme Arjmand, Samaneh Shojaei, Mitra Khalili, Hossein Dinmohammadi, Behzad Poopak, Samira Mohammadi-Yeganeh, Yousef Mortazavi
{"title":"Integrating rapamycin with novel PI3K/Akt/mTOR inhibitor microRNAs on NOTCH1-driven T-cell acute lymphoblastic leukemia (T-ALL).","authors":"Fateme Arjmand, Samaneh Shojaei, Mitra Khalili, Hossein Dinmohammadi, Behzad Poopak, Samira Mohammadi-Yeganeh, Yousef Mortazavi","doi":"10.34172/bi.2023.28870","DOIUrl":"10.34172/bi.2023.28870","url":null,"abstract":"<p><p></p><p><strong>Introduction: </strong>The PI3K/AKT/mTOR signaling pathway plays a significant role in the development of T-cell acute lymphoblastic leukemia (T-ALL). Rapamycin is a potential therapeutic strategy for hematological malignancies due to its ability to suppress mTOR activity. Additionally, microRNAs (miRNAs) have emerged as key regulators in T-ALL pathophysiology and treatment. This study aimed to investigate the combined effects of rapamycin and miRNAs in inhibiting the PI3K/AKT/mTOR pathway in T-ALL cells.</p><p><strong>Methods: </strong>Bioinformatic algorithms were used to find miRNAs that inhibit the PI3K/AKT/mTOR pathway. Twenty-five bone marrow samples were collected from T-ALL patients, alongside five control bone marrow samples from non-leukemia patients. The Jurkat cell line was chosen as a representative model for T-ALL. Gene and miRNA expression levels were assessed using quantitative real-time PCR (qRT-PCR). Two miRNAs exhibiting down-regulation in both clinical samples and Jurkat cells were transfected to the Jurkat cell line to investigate their impact on target gene expression. Furthermore, in order to evaluate the potential of combination therapy involving miRNAs and rapamycin, apoptosis and cell cycle assays were carried out.</p><p><strong>Results: </strong>Six miRNAs (miR-3143, miR-3182, miR-99a/100, miR-155, miR-576-5p, and miR-501- 3p) were predicted as inhibitors of PI3K/AKT/mTOR pathway. The expression analysis of both clinical samples and the Jurkat cell line revealed a simultaneous downregulation of miR-3143 and miR-3182. Transfection investigation demonstrated that the exogenous overexpression of miR-3143 and miR-3182 can effectively inhibit PI3K/AKT/mTOR signaling in the Jurkat cell line. Moreover, when used as a dual inhibitor along with rapamycin, miR-3143 and miR-3182 significantly increased apoptosis and caused cell cycle arrest in the Jurkat cell line.</p><p><strong>Conclusion: </strong>These preliminary results highlight the potential for improving T-ALL treatment through multi-targeted therapeutic strategies involving rapamycin and miR-3143/miR-3182.</p>","PeriodicalId":48614,"journal":{"name":"Bioimpacts","volume":"14 4","pages":"28870"},"PeriodicalIF":2.2,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11298021/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141894627","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Design and implementation of a lab-on-a-chip for assisted reproductive technologies. 辅助生殖技术芯片实验室的设计与实施。
IF 2.2 4区 工程技术
Bioimpacts Pub Date : 2024-01-01 Epub Date: 2023-12-10 DOI: 10.34172/bi.2023.28902
Firooz Safaefar, Javad Karamdel, Hadi Veladi, Masoud Maleki
{"title":"Design and implementation of a lab-on-a-chip for assisted reproductive technologies.","authors":"Firooz Safaefar, Javad Karamdel, Hadi Veladi, Masoud Maleki","doi":"10.34172/bi.2023.28902","DOIUrl":"10.34172/bi.2023.28902","url":null,"abstract":"<p><p></p><p><strong>Introduction: </strong>The microfluidic device is highly optimized to remove oocytes from the cumulus-corona cell mass surrounding them. Additionally, it effectively captures and immobilizes the oocytes, aiding in assessing their quality and facilitating the injection of sperm into the oocyte. In this study, a novel microfluidic chip was designed and manufactured using conventional soft lithography methods.</p><p><strong>Methods: </strong>This research proposes the utilization of a microfluidic chip as a substitute for the conventional manual procedures involved in oocyte denudation, trapping, and immobilization. The microfluidic chip was modeled and simulated using COMSOL Multiphysics® 5.2 software to optimize and enhance its design and performance. The microfluidic chip was fabricated using conventional injection molding techniques on a polydimethylsiloxane substrate by employing soft lithography methods.</p><p><strong>Results: </strong>A hydrostatic force was applied to guide the oocyte through predetermined pathways to eliminate the cumulus cells surrounding the oocyte. The oocyte was subsequently confined within the designated trap region by utilizing hydraulic resistance along the paths and immobilized by applying vacuum force.</p><p><strong>Conclusion: </strong>The application of this chip necessitates a lower level of operator expertise compared to enzymatic and mechanical techniques. Moreover, it is feasible to continuously monitor the oocyte's state throughout the procedure. There is a reduced need for cultural media compared to more standard approaches.</p>","PeriodicalId":48614,"journal":{"name":"Bioimpacts","volume":"14 4","pages":"28902"},"PeriodicalIF":2.2,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11298026/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141894626","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Telomerase and mitochondria inhibition promote apoptosis and TET2 and ANMT3a expression in triple negative breast cancer cell lines. 抑制端粒酶和线粒体可促进三阴性乳腺癌细胞株的凋亡以及 TET2 和 ANMT3a 的表达。
IF 2.2 4区 工程技术
Bioimpacts Pub Date : 2024-01-01 Epub Date: 2023-12-30 DOI: 10.34172/bi.2023.27640
Zeinab Mazloumi, Ali Rafat, Khadijeh Dizaji Asl, Mohammad Karimipour, Dariush Shanehbandi, Mehdi Talebi, Majid Montazer, Ali Akbar Movassaghpour, Alireza Dehnad, Raheleh Farahzadi, Hojjatollah Nozad Charoudeh
{"title":"Telomerase and mitochondria inhibition promote apoptosis and TET2 and ANMT3a expression in triple negative breast cancer cell lines.","authors":"Zeinab Mazloumi, Ali Rafat, Khadijeh Dizaji Asl, Mohammad Karimipour, Dariush Shanehbandi, Mehdi Talebi, Majid Montazer, Ali Akbar Movassaghpour, Alireza Dehnad, Raheleh Farahzadi, Hojjatollah Nozad Charoudeh","doi":"10.34172/bi.2023.27640","DOIUrl":"10.34172/bi.2023.27640","url":null,"abstract":"<p><p></p><p><strong>Introduction: </strong>High metastasis, resistance to common treatments, and high mortality rate, has made triple-negative breast cancer (TNBC) to be the most invasive type of breast cancer. High telomerase activity and mitochondrial biogenesis are involved in breast cancer tumorigenesis. The catalytic subunit of telomerase, telomerase reverse transcriptase (hTERT), plays a role in telomere lengthening and extra-biological functions such as gene expression, mitochondria function, and apoptosis. In this study, it has been aimed to evaluate intrinsic-, extrinsic-apoptosis and DNMT3a and TET2 expression following the inhibition of telomerase and mitochondria respiration in TNBC cell lines.</p><p><strong>Methods: </strong>TNBC cells were treated with IC<sub>50</sub> levels of BIBR1532, tigecycline, and also their combination. Then, telomere length, and DNMT3a, TET2, and hTERT expression were evaluated. Finally, apoptosis rate, apoptosis-related proteins, and genes were analyzed.</p><p><strong>Results: </strong>The present results showed that IC<sub>50</sub> level of telomerase and inhibition of mitochondria respiration induced apoptosis but did not leave any significant effect on telomere length. The results also indicated that telomerase inhibition induced extrinsic-apoptosis in MDA-MB-231 and caused intrinsic- apoptosis in MDA-MB-468 cells. Furthermore, it was found that the expression of p53 decreased and was ineffective in cell apoptosis. The expressions of DNMT3a and TET2 increased in cells. In addition, combination treatment was better than BIBR1532 and tigecycline alone.</p><p><strong>Conclusion: </strong>The inhibition of telomerase and mitochondria respiration caused intrinsic- and extrinsic- apoptosis and increased DNMT3a and TET2 expression and it could be utilized in breast cancer treatment.</p>","PeriodicalId":48614,"journal":{"name":"Bioimpacts","volume":"14 4","pages":"27640"},"PeriodicalIF":2.2,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11298022/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141894630","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Cooperatively inhibition effect of miR-143-5p and miR-145-5p in tumorigenesis of glioblastoma cells through modulating AKT signaling pathway miR-143-5p和miR-145-5p通过调节AKT信号通路在胶质母细胞瘤细胞发生中的协同抑制作用
4区 工程技术
Bioimpacts Pub Date : 2023-11-05 DOI: 10.34172/bi.2023.29913
Sheyda Jodeiry Zaer, Mahmoudreza Aghamaali, Mohammad Amini, Mohammad Amin Doustvandi, Seyed Samad Hosseini, Behzad Baradaran, Souzan Najafi, Yalda Baghay Esfandyari, Ahad Mokhtarzadeh
{"title":"Cooperatively inhibition effect of miR-143-5p and miR-145-5p in tumorigenesis of glioblastoma cells through modulating AKT signaling pathway","authors":"Sheyda Jodeiry Zaer, Mahmoudreza Aghamaali, Mohammad Amini, Mohammad Amin Doustvandi, Seyed Samad Hosseini, Behzad Baradaran, Souzan Najafi, Yalda Baghay Esfandyari, Ahad Mokhtarzadeh","doi":"10.34172/bi.2023.29913","DOIUrl":"https://doi.org/10.34172/bi.2023.29913","url":null,"abstract":"Introduction: As the most common aggressive primary brain tumor, glioblastoma is inevitably a recurrent malignancy whose patients’ prognosis is poor. miR-143 and miR-145, as tumor suppressor miRNAs, are downregulated through tumorigenesis of multiple human cancers, including glioblastoma. These two miRNAs regulate numerous cellular processes, such as proliferation and migration. This research was intended to explore the simultaneous replacement effect of miR-143, and miR-145 on in vitro tumorgenicity of U87 glioblastoma cells. Methods: U87 cells were cultured, and transfected with miR-143-5p and miR-145-5p. Afterward, the changes in cell viability, and apoptosis induction were determined by MTT assay and Annexin V/PI staining. The accumulation of cells at the cell cycle phases was assessed using the flow cytometry. Wound healing and colony formation assays were performed to study cell migration. qRT-PCR and western blot techniques were utilized to quantify gene expression levels. Results: Our results showed that miR-143-5p and 145-5p exogenous upregulation cooperatively diminished cell viability, and enhanced U-87 cell apoptosis by modulating Caspase-3/8/9, Bax, and Bcl-2 protein expression. The combination therapy increased accumulation of cells at the sub-G1 phase by modulating CDK1, Cyclin D1, and P53 protein expression. miR-143/145-5p significantly decreased cell migration, and reduced colony formation ability by the downregulation of c-Myc and CD44 gene expression. Furthermore, the results showed the combination therapy of these miRNAs could remarkably downregulate phosphorylated-AKT expression levels. Conclusion: In conclusion, miR-143 and miR-145 were indicated to show cooperative anti- cancer effects on glioblastoma cells via modulating AKT signaling as a new therapeutic approach.","PeriodicalId":48614,"journal":{"name":"Bioimpacts","volume":"11 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135726732","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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