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1.
Clin. transl. oncol. (Print) ; 26(1): 52-68, jan. 2024.
Artigo em Inglês | IBECS | ID: ibc-229146

RESUMO

The MAF bZIP transcription factor G-antisense RNA 1 (MAFG-AS1) is located on chromosome 17. MAFG-AS1 was upregulated in 15 human cancers. MAFG-AS1 not only suppresses 16 miRNAs but also directly impacts 22 protein-coding genes' expression. Notably, abnormal MAFG-AS1 expression is connected to clinicopathological characteristics and a worse prognosis in a variety of cancers. Moreover, MAFG-AS1 takes its part in the tumorigenesis and progression of various human malignancies by suppressing apoptosis and promoting proliferation, migration, invasion, aerobic glycolysis, ferroptosis, angiogenesis, EMT, and metastasis. Besides, it can predict treatment effectiveness in ER + breast cancer, urothelial bladder carcinoma, and liver cancer by functioning as a trigger of resistance to tamoxifen, sorafenib, and cisplatin. This study systematically presents the functions of MAFG-AS1 in various cancers, as well as the findings of bioinformatics analyses of the MAFG-AS1, which should give clear advice for future research (AU)


Assuntos
Humanos , Feminino , Neoplasias da Mama/genética , Neoplasias da Mama/metabolismo , Carcinogênese , Fator de Transcrição MafG/genética , Fator de Transcrição MafG/metabolismo , Linhagem Celular Tumoral , Transformação Celular Neoplásica , Regulação Neoplásica da Expressão Gênica
2.
Biol Proced Online ; 26(1): 4, 2024 Jan 26.
Artigo em Inglês | MEDLINE | ID: mdl-38279129

RESUMO

Metal-organic frameworks (MOFs) are porous materials with unique characteristics that make them well-suited for drug delivery and gene therapy applications. Among the MOFs, zeolitic imidazolate framework-8 (ZIF-8) has emerged as a promising candidate for delivering exogenous DNA into cells. However, the potential of ZIF-8 as a vector for sperm-mediated gene transfer (SMGT) has not yet been thoroughly explored.This investigation aimed to explore the potential of ZIF-8 as a vector for enhancing genetic transfer and transgenesis rates by delivering exogenous DNA into sperm cells. To test this hypothesis, we employed ZIF-8 to deliver a plasmid expressing green fluorescent protein (GFP) into mouse sperm cells and evaluated the efficiency of DNA uptake. Our findings demonstrate that ZIF-8 can efficiently load and deliver exogenous DNA into mouse sperm cells, increasing GFP expression in vitro. These results suggest that ZIF-8 is a valuable tool for enhancing genetic transfer in SMGT, with important implications for developing genetically modified animals for research and commercial purposes. Additionally, our study highlights the potential of ZIF-8 as a novel class of vectors for gene delivery in reproductive biology.Overall, our study provides a foundation for further research into using ZIF-8 and other MOFs as gene delivery systems in reproductive biology and underscores the potential of these materials as promising vectors for gene therapy and drug delivery.

3.
Mol Biotechnol ; 66(1): 90-101, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37031335

RESUMO

In the fight against glioblastoma, circular RNA is emerging as a functional molecule. However, how circular RNA (circRNA) is regulated and what role it plays is still a mystery. In this research, different bioinformatics approaches were used to evaluate glioblastoma circRNA sequencing and array data, with the goal of developing a putative molecular sponge mechanism control network. The circRNAs were obtained from the Gene Expression Omnibus datasets. MicroRNA-circRNA interactions were predicted using CircInteractome. The microRNAs' expression and survival trends were screened using the TCGA database. MicroRNA gene targets were predicted using the MiRnet database. Sponge network gene candidates were screened using data from the GEPIA. The roles of the targeted genes were to be explained by analyzing data from Gene Ontology and the Kyoto Encyclopedia of Genes and Genomes. To build the network and display the outcomes, we utilized python program, and enrichment online Bioinformatics databases. The circRNAs hsa_circITGA4_002, hsa_circITGA4_001, hsa_circITGA4_003, hsa_circ_0030855, hsa_circ_0030857 were chosen from among GBM patients and control group. Upregulation of hsa-miR-1468, hsa-miR-3683, hsa-miR-1273c, and hsa-miR-4665-3p were associated with a poor prognosis in GBM. MicroRNA targets such as ITGA4, LAMA2, EGFR, PTEN, COL1A4, and NCAM2 were analyzed using expression and survival data. The Apoptosis, cell adhesion molecules, PI3K/AKT and P53 signaling pathways were the most abundant functional categories among gene targets. The circRNA molecular sponge regulatory network includes hsa-miR-1468 and hsa-miR-4665-3p. In this network, hs hsa_circITGA4_002, hsa_circITGA4_001, hsa_circ_0030857, EGFR, PTEN, and ITGA4 may represent GBM therapeutic targets. Their role in GBM needs additional study.


Assuntos
Glioblastoma , MicroRNAs , Humanos , RNA Circular/genética , Glioblastoma/genética , Fosfatidilinositol 3-Quinases , MicroRNAs/genética , MicroRNAs/metabolismo , Receptores ErbB/genética , Moléculas de Adesão de Célula Nervosa , PTEN Fosfo-Hidrolase/genética
4.
Clin Transl Oncol ; 26(1): 52-68, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37351806

RESUMO

The MAF bZIP transcription factor G-antisense RNA 1 (MAFG-AS1) is located on chromosome 17. MAFG-AS1 was upregulated in 15 human cancers. MAFG-AS1 not only suppresses 16 miRNAs but also directly impacts 22 protein-coding genes' expression. Notably, abnormal MAFG-AS1 expression is connected to clinicopathological characteristics and a worse prognosis in a variety of cancers. Moreover, MAFG-AS1 takes its part in the tumorigenesis and progression of various human malignancies by suppressing apoptosis and promoting proliferation, migration, invasion, aerobic glycolysis, ferroptosis, angiogenesis, EMT, and metastasis. Besides, it can predict treatment effectiveness in ER + breast cancer, urothelial bladder carcinoma, and liver cancer by functioning as a trigger of resistance to tamoxifen, sorafenib, and cisplatin. This study systematically presents the functions of MAFG-AS1 in various cancers, as well as the findings of bioinformatics analyses of the MAFG-AS1, which should give clear advice for future research.


Assuntos
Neoplasias da Mama , Neoplasias Hepáticas , MicroRNAs , RNA Longo não Codificante , Humanos , Feminino , Carcinógenos , MicroRNAs/genética , MicroRNAs/metabolismo , RNA Antissenso/genética , Neoplasias Hepáticas/genética , Neoplasias da Mama/genética , Transformação Celular Neoplásica/genética , RNA Longo não Codificante/genética , RNA Longo não Codificante/metabolismo , Proliferação de Células/genética , Regulação Neoplásica da Expressão Gênica , Linhagem Celular Tumoral , Movimento Celular/genética , Proteínas Repressoras/genética , Fator de Transcrição MafG/genética , Fator de Transcrição MafG/metabolismo
5.
In Vitro Cell Dev Biol Anim ; 60(1): 106-114, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38123755

RESUMO

Using stem cells is one of the most important determining factors in repairing lesions using regenerative medicine. Obtaining adult stem cells from patients is a perfect choice, but it is worth noting that their differentiation and proliferation potential decreases as the patient ages. For this reason, the use of amniotic fluid stem cells can be one of the excellent alternatives. This research aimed to investigate the osteogenic differentiation potential of the amniotic fluid stem cells while cultured on the polycaprolactone/poly L-lactic acid nanofibrous scaffold. Scaffolds were qualitatively evaluated by a scanning electron microscope, and their hydrophilicity and mechanical properties were studied using contact angle and tensile test, respectively. The biocompatibility and non-toxicity of the nanofibers were also evaluated using viability assay. The osteo-supportive capacity of the nanofibers was examined using alizarin red staining, alkaline phosphatase activity, and calcium release measurement. Finally, the expression level of four important bone-related genes was determined quantitatively. The results demonstrated that the mineralization rate, alkaline phosphatase activity, intracellular calcium, and bone-related genes increased significantly in the cells cultured on the polycaprolactone/poly L-lactic acid scaffold compared to the cells cultured on the tissue culture plate as a control. According to the results, it can be concluded that the polycaprolactone/poly L-lactic acid nanofibrous scaffold surprisingly improved the osteogenic differentiation potential of the amniotic fluid stem cells and, in combination with polycaprolactone/poly L-lactic acid nanofibers could be a promising candidate as bone implants.


Assuntos
Nanofibras , Animais , Tecidos Suporte , Osteogênese , Engenharia Tecidual/métodos , Cálcio , Fosfatase Alcalina , Líquido Amniótico , Células Cultivadas , Poliésteres/farmacologia , Diferenciação Celular , Células-Tronco , Ácido Láctico/farmacologia
6.
Pathol Res Pract ; 251: 154903, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37879147

RESUMO

MicroRNA-3613 (hsa-miR-3613-5p), a biomarker with a dual role as an oncogenic or tumor suppressor, is associated with different types of cancer. This study aimed to determine the correlation between the hsa-miR-3613-5p gene expression and Kidney renal clear cell carcinoma (KIRC). Utilizing several bioinformatics tools, we examined the expression level and clinicopathological value of hsa-miR-3613-5p in patients with KIRC compared to normal tissues. Other bioinformatic measures, including survival analysis, diagnostic merit of hsa-miR-3613-5p, downstream target prediction, potential upstream lncRNAs, network construction, and functional enrichment analysis of hsa-miR-3613-5p, were performed. We observed that overexpression of hsa-miR-3613-5p in KIRC tissues had valuable diagnostic merit and was significantly correlated with the poor overall survival of KIRC patients. We also realized a correlation between abnormal expression of hsa-miR-3613-5p and several clinical parameters such as pathological stage, race, age, and histological grades in patients with KIRC. Moreover, we constructed the most potential regulatory network of hsa-miR-3613-5p in KIRC with 17 different axes, including four pseudogenes, two lncRNAs, and three mRNAs. Besides, we uncovered six variants in the mature form of hsa-miR-3613-5p. Finally, pathway enrichment analysis demonstrated that the top-ranked pathways for hsa-miR-3613-5p are cell cycle, cell adhesion molecules (CAMs), and hepatocellular carcinoma pathways. The present report suggests that the higher expression of hsa-miR-3613-5p is associated with the progression of KIRC. Therefore, it may be considered a valuable indicator for the early detection, risk stratification, and targeted treatment of patients with KIRC.


Assuntos
Carcinoma de Células Renais , Neoplasias Renais , MicroRNAs , RNA Longo não Codificante , Humanos , Prognóstico , RNA Longo não Codificante/genética , MicroRNAs/genética , MicroRNAs/metabolismo , Carcinoma de Células Renais/diagnóstico , Carcinoma de Células Renais/genética , Carcinoma de Células Renais/patologia , Neoplasias Renais/diagnóstico , Neoplasias Renais/genética , Neoplasias Renais/patologia , Oncogenes , Rim/patologia
7.
Mol Biotechnol ; 65(9): 1444-1452, 2023 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-36637626

RESUMO

Glioblastoma multiform (GBM) is an invasive cancer that causes high mortality in patients. Disruption of the apoptosis process is one of the main pathogenesis of the disease. Recently, LncRNAs and miRNAs have been shown to play an important role in the process of apoptosis. To follow the aim of study, 100 patients participated in the two groups of 50 individuals, including 50 GBM patients and 50 healthy individuals as the control group. Mononuclear cells were isolated from peripheral blood samples and RNA extraction was done. The expression changes of miR-17-5p, miR-20-5p, LINC01605, FAS-AS1, and Caspase 3 were examined using RT-PCR in both groups. Expression of LINC01605, miR-20-5p, and miR-17-5p increased in patients, while Caspase 3 and FAS-AS1 decreased; the difference was statistically significant between the two groups. In addition, it was found that these factors have the appropriate sensitivity and specificity as diagnostic markers. Finally, It is suggested to use the LINC01605, FAS-AS1, miR-20-5p, miR-17-5p, and Caspase 3 as apoptosis predictors in the GM patients.


Assuntos
Glioblastoma , MicroRNAs , RNA Longo não Codificante , Humanos , MicroRNAs/metabolismo , RNA Longo não Codificante/genética , RNA Longo não Codificante/metabolismo , Caspase 3/genética , Caspase 3/metabolismo , Glioblastoma/genética , Glioblastoma/metabolismo , Glioblastoma/patologia , Estudos de Casos e Controles , Linhagem Celular Tumoral , Regulação Neoplásica da Expressão Gênica , Apoptose/genética , Proliferação de Células/genética
8.
Arch Physiol Biochem ; 129(1): 46-53, 2023 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-32758009

RESUMO

BACKGROUND: SIRT1 and HDAC 9 genes are related to inflammation and may contribute to the pathogenesis of coronary artery disease (CAD). We aimed to evaluate the expression level, methylation profile and polymorphisms of these genes in CAD patients. METHODS: In this study, 50 CAD patients and 50 healthy individuals were recruited. The expression level change was evaluated using the TaqMan Real-Time PCR method. The methylation of genes promoter and genotyping of polymorphisms were evaluated by the HRM. RESULTS: The expression level of SIRT1 was reduced while the HDAC9 expression level showed a significant elevation (p < .001). The SIRT1 gene promoter was hypomethylated and the HDAC9 gene promoter was hypermethylated in CAD patients. Also, CG + GG genotype in SIRT1 and both genotypes in the HDAC9 gene were associated with expression change. CONCLUSIONS: SIRT1 and HDAC9 genes, expression changes can be suggested as a potential biomarker for CAD detection.


Assuntos
Doença da Artéria Coronariana , Humanos , Biomarcadores , Doença da Artéria Coronariana/genética , Doença da Artéria Coronariana/diagnóstico , Predisposição Genética para Doença , Genótipo , Inflamação , Polimorfismo de Nucleotídeo Único , Sirtuína 1/genética , Sirtuína 1/metabolismo
9.
Artigo em Inglês | MEDLINE | ID: mdl-35737431

RESUMO

Unexplained recurrent pregnancy loss (RPL) composed almost half of all diagnosed miscarriage cases. As the apoptosis pathway is involved in the pregnancy process the present investigation aimed to assess the differential expression of the BCL-2 gene, SRA lncRNA, miR-361-3p in unexplained RPL patients. In this study, RNA was isolated from 50 blood samples of people with a history of RPL, and 50 blood samples of people with healthy fertility. After cDNA synthesis from these samples, alterations in the expression levels of the above-mentioned genes were examined by Real-Time PCR. Our results showed that the expression of BCL-2 and lncRNA SRA was significantly higher in the blood samples of RPL patients than in controls, while the expression of miR-361-3p was significantly downregulated. Besides, there were significant correlations between the changes in the expression of lncRNA SRA and miR-361-3p with BCL-2, in positive and negative directions, respectively. Also, miR-361-3p presented as a good diagnostic marker with the highest AUC value to discriminate between RPL and the healthy control subjects. These results proposed that ncRNAs may have a significant role in the regulation of apoptosis relates genes expression in RPL.


Assuntos
Aborto Habitual , MicroRNAs , Proteínas Proto-Oncogênicas c-bcl-2/genética , RNA Longo não Codificante , Aborto Habitual/genética , Apoptose/genética , Feminino , Genes bcl-2 , Humanos , MicroRNAs/genética , MicroRNAs/metabolismo , Gravidez , RNA Longo não Codificante/genética , RNA Longo não Codificante/metabolismo
10.
Iran J Child Neurol ; 16(1): 85-95, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35222660

RESUMO

OBJECTIVES: Fragile X syndrome (FXS) has been known as the most common cause of inherited intellectual disability and autism. This disease results from the loss of fragile X mental retardation protein expression due to the expansion of CGG repeats located on the 5' untranslated region of the fragile X mental retardation 1 (FMR1) gene. MATERIALS & METHODS: In the present study, the peripheral blood-mesenchymal stem cells (PB-MSCs) of two female full mutation carriers were differentiated into neuronal cells by the suppression of bone morphogenesis pathway signaling. Then, the expression of genes adjacent to CGG repeats expansion, including SLIT and NTRK-like protein 2 (SLITRK2), SLIT and NTRK-like protein 4 (SLITRK4), methyl CpG binding protein 2 (MECP2), and gamma-aminobutyric acid receptor subunit alpha-3 (GABRA3), were evaluated in these cells using SYBR Green real-time polymerase chain reaction. RESULTS: The obtained results indicated that the expression of SLITRK2 and SLITRK4 were upregulated and downregulated in the neuron-like cells differentiated from the PB-MSCs of females with FMR1 full mutation, compared to that of the normal females, respectively. Furthermore, the expression of MECP2 and GABRA3 genes were observed to be related to the phenotypic differences observed in the female FMR1 full mutation carriers. CONCLUSION: The observed association of expression of genes located upstream of the FMR1 gene with phenotypic differences in the female carriers could increase the understanding of novel therapeutic targets for patients with mild symptoms of FXS and the patients affected by other FMR1-related disorders.

11.
Andrologia ; 54(3): e14344, 2022 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-34866225

RESUMO

Prostate cancer (PCa) and benign prostate hyperplasia (BPH) are highly prevalent heterogeneous disorders among men. Whereas PCa and BPH underline common pathological features, apoptotic-related genes might be differentially expressed in these diseases. This study was aimed at testing BCL-2 as well as BALR-2 and ZEB2-AS1 apoptosis-related long non-coding RNA (lncRNA) in patients with PCa and BPH. The expression levels of the BCL-2 gene and ZEB2-AS1 lncRNA were upregulated in tumoural tissues in comparison to adjacent non-cancerous tissues (ANCTs) and BPH tissues. In contrast, the expression level of BALR-2 lncRNA was significantly higher in BPH compared with tumoural tissues. Furthermore, while no association was noticed between the relative expression of ZEB2-AS1 and the tumour grade, the relative expression of BCL-2 and BALR-2 is strongly associated with a higher grade of the tumour in PCa samples compared with the ANCTs. The receiver operating characteristic (ROC) curve analysis indicated the highest specificity and diagnostic value in distinguishing PCa and ANCTs as well as PCa and BPH, respectively. In conclusion, altered expression of BCL-2 and BALR-2 was observed to be associated with tumoural progression and could be used as potential candidates for distinguishing PCa tissues from ANCTs or BPH samples.


Assuntos
Hiperplasia Prostática , Neoplasias da Próstata , Expressão Gênica , Humanos , Masculino , Hiperplasia Prostática/patologia , Neoplasias da Próstata/patologia , Proteínas Proto-Oncogênicas c-bcl-2/genética , RNA Longo não Codificante , Homeobox 2 de Ligação a E-box com Dedos de Zinco/genética
12.
Arch Physiol Biochem ; 128(5): 1308-1315, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-32447981

RESUMO

Background: The MALAT1, MIAT, and XIST long noncoding RNAs (lncRNAs) participate in the pathogenesis of complex diseases and also serve as diagnostic markers. The study aimed to assess their expressions in CAD patients with or without T2DM against diabetic and non-diabetic controls.Methods: The expression levels of three lncRNAs in 50 CAD patients (with or without diabetes) and 50 non-CAD subjects (with or without diabetes) were evaluated by using the TaqMan Assay method.Results: MALAT1 and MIAT were upregulated in CAD patients (p Value= .0008 and .0078, respectively). The expression level of XIST was significantly elevated diabetic compared to non-diabetic CAD patients (p Value= .0003). MALAT1 gene had the highest diagnostic power for discrimination of CAD patients from controls (AUC= 0.682, p Value=.001).Conclusions: The current study supports the participation of lncRNAs in the pathogenesis of CAD and T2DM and highlights their potential as diagnostic biomarkers.


Assuntos
Doença da Artéria Coronariana , Diabetes Mellitus Tipo 2 , RNA Longo não Codificante , Biomarcadores , Doença da Artéria Coronariana/complicações , Doença da Artéria Coronariana/genética , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/genética , Diabetes Mellitus Tipo 2/patologia , Humanos , RNA Longo não Codificante/genética
13.
Exp Mol Pathol ; 121: 104655, 2021 08.
Artigo em Inglês | MEDLINE | ID: mdl-34062187

RESUMO

OBJECTIVE: Glioblastoma multiform (GBM) is the most prevalent and invasive brain malignancy in adults. There are ongoing researches to introduce novel and non-invasive potential biomarkers for the early detection of GBM. METHODS: Here we compared the expression of EGFR, miR-34a, and miR-19a between tumoral and adjacent non-cancerous tissues (ANCTs) of 50 GBM patients and also compared their expression levels in serum samples of GBM patients with serum samples of 50 control subjects. RESULTS: The expression level of the EGFR gene was elevated in GBM tissues in comparison to the corresponding ANCTs (P < 0.0001) and also was higher in the serum sample of patients compared with control serum (P < 0.0001). The miR-34a was significantly downregulated in serum samples as well as tissues obtained from GBM patients compared with the corresponding controls (expression ratio = 0.57 and 0.4, P = 0.02 and 0.001 respectively). CONCLUSIONS: Dysregulation of the EGFR gene and miR-34a in serum samples of GBM patients compared with the control subjects promises the emergence of non-invasive biomarkers for early detection of GBM which need confirmative studies with a large sample size.


Assuntos
Biomarcadores Tumorais/metabolismo , Glioblastoma/patologia , MicroRNAs/genética , Biomarcadores Tumorais/genética , Estudos de Casos e Controles , Receptores ErbB/genética , Receptores ErbB/metabolismo , Feminino , Seguimentos , Regulação Neoplásica da Expressão Gênica , Glioblastoma/genética , Glioblastoma/metabolismo , Humanos , Masculino , Pessoa de Meia-Idade , Prognóstico
14.
J Assist Reprod Genet ; 38(9): 2405-2413, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-34050449

RESUMO

PURPOSE: Unpredictability in acquiring an adequate number of high-quality oocytes following ovarian stimulation is one of the major complications in controlled ovarian hyperstimulation (COH). Genetic predispositions of variations could alter the immunological profiles and consequently be implicated in the variability of ovarian response to the stimulation. DESIGN: Uncovering the influence of variations in AMHR2, LHCGR, MTHFR, PGR, and SERPINE1 genes with ovarian response to gonadotrophin stimulation in COH of infertile women. METHODS: Blood samples of the women with a good ovarian response (GOR) or with a poor ovarian response (POR) were collected. Genomic DNA was extracted, and gene variations were genotyped by TaqMan SNP Genotyping Assays using primer-probe sets or real-time PCR Kit. RESULTS: Except for PGR (rs10895068), allele distributions demonstrate that the majority of POR patients carried minor alleles of AMHR2 (rs2002555, G-allele), LHCGR (rs2293275, G-allele), MTHFR (rs1801131, C-allele, and rs1801133, T-allele), and SERPINE1 (rs1799889, 4G allele) genes compared to the GOR. Similarly, genotypes with a minor allele in AMHR2, LHCGR, MTHFR, and SERPINE1 genes had a higher prevalence among POR patients with the polymorphic genotypes. However, further genotype stratification indicated that the minor alleles of these genes are not associated with poor response. Multivariate logistic analysis of clinical-demographic factors and polymorphic genotypes demonstrated a correlation between FSH levels and polymorphic genotypes of SERPINE1 in poor response status. CONCLUSIONS: Despite a higher prevalence of AMHR2, LHCGR, MTHFR, and SERPINE1 variations in the patients with poor ovarian response, it seems that these variations are not associated with the ovarian response.


Assuntos
Gonadotropinas/farmacologia , Infertilidade Feminina/patologia , Síndrome de Hiperestimulação Ovariana/fisiopatologia , Reserva Ovariana/efeitos dos fármacos , Indução da Ovulação/estatística & dados numéricos , Polimorfismo de Nucleotídeo Único , Adulto , Feminino , Fertilização In Vitro , Predisposição Genética para Doença , Genótipo , Humanos , Infertilidade Feminina/tratamento farmacológico , Infertilidade Feminina/genética , Peptídeos e Proteínas de Sinalização Intracelular/genética , Metilenotetra-Hidrofolato Redutase (NADPH2)/genética , Proteínas Nucleares/genética , Síndrome de Hiperestimulação Ovariana/genética , Inibidor 1 de Ativador de Plasminogênio/genética , RNA Longo não Codificante/genética , Receptores do LH/genética
15.
Gynecol Endocrinol ; 37(7): 660-664, 2021 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-33719810

RESUMO

AIMS: Recurrent pregnancy loss (RPL), with unknown causes, is one of the most common challenges facing pregnancy. Apoptotic signaling pathways are involved in the normal and abnormal pregnancy process. Despite the evidence pointing toward the aberrant expression of apoptotic and apoptotic-related genes in pregnancy complications, the involvement of these genes in RPL remains to be elucidated. This study aimed to investigate the expression levels of BAX, MEG3, and miR-214-3p (as a microRNA), and their associations in an Iranian population. MATERIALS AND METHODS: Following the extraction of RNA from blood samples of RPL patients and controls, quantitative expression levels of BAX, MEG3, and miR-214-3p genes were analyzed by real-time RT-PCR. RESULTS: The findings showed that the expression levels of BAX and miRNA-214-3p were significantly higher in the blood samples of RPL patients than in control samples. In contrast, the expression of MEG3 was significantly down-regulated in women RPL. Furthermore, altered expressions of MEG3 and miRNA-214-3p are associated with their target gene BAX, where the BAX expression is positively and negatively correlated with the expressions of has-miR-214-3P and MEG3, respectively. ROC curve evaluation demonstrated the highest specificity and diagnostic value for miR-214-3p expression in distinguishing RPL samples from the healthy controls. CONCLUSIONS: These data indicated that the aberrant expression of BAX, MEG3, miRNA-214-3p genes in RPL patients could provide new insights into the biological characteristics and related pathways of differentially expressed genes, which could help as potential diagnostic biomarkers and a better understanding of the molecular mechanisms of RPL.


Assuntos
Aborto Habitual/genética , MicroRNAs/genética , RNA Longo não Codificante/genética , Proteína X Associada a bcl-2/genética , Adulto , Feminino , Expressão Gênica , Humanos , Irã (Geográfico) , Gravidez , RNA Mensageiro/metabolismo
16.
Biologics ; 15: 53-59, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33688164

RESUMO

Autologous hematopoietic stem cell transplantation (AHSCT) is considered as the novel approach to improve multiple sclerosis (MS) patients with disease-modifying therapies (DMTs)-resistance. The results obtained from different studies indicate that AHSCT increases the life quality of MS patients. Several factors are known to be influenced on the successful rate of AHSCT in patients with MS. The individuals aged <40 years with a short duration of MS disease have been demonstrated to show a better response to AHSCT administration. Furthermore, this treatment approach was more effective in relapsing remitting MS (RRMS) patients than progressive MS (PMS). Different clinical trials revealed that AHSCT with a low density conditioning regimen could be suggested as a suitable candidate approach in the management of MS. Several molecular and cellular mechanisms are known to be involved in the resetting of the immune system following the AHSCT infusion in MS patients. These mechanisms play a role in the depletion of auto-reactive lymphocytes and immune system renewal. In the present review, we discuss different clinical and molecular aspects of AHSCT application in the alleviation of MS symptoms.

17.
Curr Stem Cell Res Ther ; 16(8): 1005-1017, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33557738

RESUMO

AIM: Different studies have been performed to investigate stem cell administration as a promising tool for recovery of injured tissue in multiple sclerosis (MS), the most common demyelinating disease. METHODS: In the present systematic review, the electronic databases of PubMed and ScienceDirect were searched to screen English language studies published until April 2020. RESULTS: The results obtained from experimental autoimmune encephalomyelitis (EAE) animals revealed that modified mesenchymal stem cells (MSCs) transplantation was associated with remyelination, inflammation suppression and oligodendrocyte precursor cells regeneration. Clinical trials indicated that 70% of the patients with MS showed disease stabilization following MSCs administration. CONCLUSION: Although MSC therapy has showed to be effective in the improvement of some patients with MS, designing larger placebo-controlled clinical trials with MSCs expressing immune- regulators or MSCs-exosomes may provide a novel viewpoint in the treatment of MS.


Assuntos
Transplante de Células-Tronco Mesenquimais , Células-Tronco Mesenquimais , Esclerose Múltipla , Animais , Exossomos , Humanos , Camundongos , Camundongos Endogâmicos C57BL , Esclerose Múltipla/terapia
18.
Cell J ; 22(4): 431-436, 2021 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-32347036

RESUMO

OBJECTIVE: In the recent years, mesenchymal stem cells (MSCs) were considered as the suitable source of cells for transplantation into the damaged tissues in regenerative medicine. There was low number of these cells in different organs and this characteristic was the main drawback to use them in treatment of diseases. Cellular senescence of the stem cells has been demonstrated to be dependent to the telomerase activity. The aim of present experimental study was to evaluate correlation of the expression of telomerase components and WNT signaling pathway in MSCs derived from human peripheral blood (PB-MSCs). MATERIALS AND METHODS: In this experimental study, following the isolation of MSCs from peripheral blood mononuclear cells, RNA was extracted from these cells in the early culture (8-9th days) and late culture (14-17th days). Then, expression of TERT, TERC, TCF4, GSK and CTNNB1 was determined by quantitative reverse transcription polymerase chain reaction (qRT-PCR) based on SYBR Green. RESULTS: Our data indicated that there was a significantly reduced expression of TERT in the late culture of human MSCs derived from peripheral blood (P<0.05). Although a negative correlation was observed between GSK and TERC expression levels in the early culture of MSCs, spearman analysis showed that there was no significant correlation between the expression of telomerase components (TERC and TERT) and WNT signaling pathway (P>0.05). CONCLUSION: The obtained results suggested that WNT signaling pathway likely plays a minor role in the maintenance of telomere length and proliferation potential of MSCs.

19.
Immunol Invest ; 50(8): 914-924, 2021 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-32928012

RESUMO

As a chronic inflammatory disease, coronary artery disease (CAD) is a common cause of death worldwide. Dysregulation of microRNA expression levels in peripheral blood mononuclear cells (PBMCs) may contribute to CAD and serve as a potential diagnostic biomarker. Here, we evaluated PBMC expression of two CAD-related inflammatory miRNAs, miR-196a and miR-100, in PBMCs of CAD patients with significant stenosis (CAD, n: 72), patients with insignificant coronary stenosis (ICAD, n: 30), and controls (n: 74) and checked whether they can segregate study groups. MiRNA expression was evaluated using the standard stem-loop RT-qPCR method. MiR-196a expression was downregulated in ICAD compared to CADs and healthy groups. MiR100 expression levels were not different between groups. The receiver operating characteristic (ROC) curve analysis acquainted that miR-196a expression levels in PBMC could segregate CAD individuals or any of its clinical manifestations (i.e. unstable angina, stable angina, acute myocardial infarction) from ICADs. In conclusion, this study reported a distinct miR-196a expression pattern in PBMCs of all patient groups and recommended a biomarker potential for miR-196a in discriminating ICADs from CADs or healthy controls.


Assuntos
Doença da Artéria Coronariana , MicroRNAs , Doença da Artéria Coronariana/genética , Humanos , Leucócitos , Leucócitos Mononucleares , MicroRNAs/genética , Curva ROC
20.
Asia Pac J Clin Oncol ; 17(5): e185-e190, 2021 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-33029912

RESUMO

AIM: Glioblastoma multiforme (GBM) is the most invasive type of glial tumors. MicroRNAs as the small, noncoding RNAs have been revealed that play an important role in tumorigenic processes. So, they may be used as potential biomarkers for detection and prognosis of cancers at the early stages. In addition, they can be applied as therapeutic targets. In the present study, the expression levels of hsa-miR-27a-3p and EGFR were investigated in GBM. METHODS: Real-time RT-PCR was applied to evaluate hsa-miR-27a-3p and EGFR expressions in the formalin-fixed paraffin-embedded (FFPE) tissue samples obtained from 50 GBM and 50 normal people. RESULTS: The expression level of hsa-miR-27a-3p and EGFR was significantly different between cases and controls. Positive association was found between gene expressions and immunohistochemistry markers, such as Ki67 and glial fibrillary acidic protein, except for IDH1 status. CONCLUSION: We showed the association of hsa-miR-27a-3p and EGFR with GBM and it can be concluded that they have a promising potential to use as primary cancer biomarkers.


Assuntos
Receptores ErbB , Glioblastoma , MicroRNAs , Biomarcadores Tumorais/genética , Receptores ErbB/genética , Glioblastoma/genética , Humanos , MicroRNAs/genética , Prognóstico
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