Transfection
Mostrando 25-36 de 4637 artigos, teses e dissertações.
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25. Production of Lentiviral Vectors Encoding Recombinant Factor VIII Expression in Serum-Free Suspension Cultures
ABSTRACT Lentiviral vector-mediated gene transfer offers several advantages over other gene delivery vectors when considering gene and cell therapy applications. However, using these therapies in clinical applications involves large-scale vector production in an efficient and cost-effective manner. Here we describe a high yield production of a lentivirus enc
Braz. arch. biol. technol.. Publicado em: 2015-12
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26. Cotransfected human chondrocytes: over-expression of IGF-I and SOX9 enhances the synthesis of cartilage matrix components collagen-II and glycosaminoglycans
Damage to cartilage causes a loss of type II collagen (Col-II) and glycosaminoglycans (GAG). To restore the original cartilage architecture, cell factors that stimulate Col-II and GAG production are needed. Insulin-like growth factor I (IGF-I) and transcription factor SOX9are essential for the synthesis of cartilage matrix, chondrocyte proliferation, and phe
Braz J Med Biol Res. Publicado em: 06/10/2015
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27. POD-1/Tcf21 overexpression reduces endogenous SF-1 and StAR expression in rat adrenal cells
During gonad and adrenal development, the POD-1/capsulin/TCF21transcription factor negatively regulates SF-1/NR5A1expression, with higher SF-1 levels being associated with increased adrenal cell proliferation and tumorigenesis. In adrenocortical tumor cells, POD-1 binds to the SF-1 E-box promoter region, decreasing SF-1 expression. However, the modulation of
Braz J Med Biol Res. Publicado em: 29/09/2015
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28. Small activating RNA induces myogenic differentiation of rat adipose-derived stem cells by upregulating MyoD
ABSTRACTPurpose:RNA activation (RNAa) is a mechanism of gene activation triggered by promoter-targeted small double stranded RNAs (dsRNAs), also known as small activating RNAs (saRNAs). Myogenic regulatory factor MyoD is regarded as the master activator of myogenic differentiation cascade by binding to enhancer of muscle specific genes. Stress urinary incont
Int. braz j urol.. Publicado em: 2015-08
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29. A glycoprotein E gene-deleted bovine herpesvirus 1 as a candidate vaccine strain
A bovine herpesvirus 1 (BoHV-1) defective in glycoprotein E (gE) was constructed from a Brazilian genital BoHV-1 isolate, by replacing the full gE coding region with the green fluorescent protein (GFP) gene for selection. Upon co-transfection of MDBK cells with genomic viral DNA plus the GFP-bearing gE-deletion plasmid, three fluorescent recombinant clones w
Braz J Med Biol Res. Publicado em: 21/07/2015
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30. Diagnóstico, tratamento e seguimento do carcinoma medular de tireoide: recomendações do Departamento de Tireoide da Sociedade Brasileira de Endocrinologia e Metabologia
Introdução O carcinoma medular de tireoide (CMT) origina-se das células parafoliculares da tireoide e corresponde a 3-4% das neoplasias malignas da glândula. Aproximadamente 25% dos casos de CMT são hereditários e decorrentes de mutações ativadoras no proto-oncogene RET (REarranged during Transfection). O CMT é uma neoplasia de curso indolente, co
Arq Bras Endocrinol Metab. Publicado em: 2014-10
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31. Telomerase reverse transcriptase mediated immortalization of human bone marrow stromal cells
Primary human bone marrow stromal cells (hMSCs) were transfected with human telomerase reverse transcriptase (hTERT) gene with lipofection method. The hTERT transfected hMSCs of passage 100 underwent chondrogenesis induction with dexamethasone, transforming the growth factor β and vitamin C, osteogenesis induction with dexamethasone, β glycerophosphoric ac
Braz. arch. biol. technol.. Publicado em: 2014-02
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32. Involvement of miR-30c in resistance to doxorubicin by regulating YWHAZ in breast cancer cells
MicroRNAs (miRNAs) are small RNA molecules that modulate gene expression implicated in cancer, which play crucial roles in diverse biological processes, such as development, differentiation, apoptosis, and proliferation. The aim of this study was to investigate whether miR-30c mediated the resistance of breast cancer cells to the chemotherapeutic agent doxor
Braz J Med Biol Res. Publicado em: 10/01/2014
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33. Construction and characterisation of a complete reverse genetics system of dengue virus type 3
Dengue virulence and fitness are important factors that determine disease outcome. However, dengue virus (DENV) molecular biology and pathogenesis are not completely elucidated. New insights on those mechanisms have been facilitated by the development of reverse genetic systems in the past decades. Unfortunately, instability of flavivirus genomes cloned in E
Mem. Inst. Oswaldo Cruz. Publicado em: 11/10/2013
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34. Effect of Wnt/β-catenin and NF-κB signaling pathways on mucus secretion with hypertonicity in 16HBE cells
This study aimed at identifying the molecular mechanisms and effects of hypertonicity on mucin5AC (MUC5AC) expression in airway epithelial cells for which immortalized human bronchial epithelial (16HBE) cells were cultured in 600 mOsm/L hypertonic medium for different times in vitro. Proteins of MUC5AC and β-catenin, Cyclin D1, NF-κB p65 were detected by e
Braz. arch. biol. technol.. Publicado em: 2013-08
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35. Overexpression of hsa-miR-125b during osteoblastic differentiation does not influence levels of Runx2, osteopontin, and ALPL gene expression
Multipotent mesenchymal stromal cells (MSCs) were first isolated from bone marrow and then from various adult tissues including placenta, cord blood, deciduous teeth, and amniotic fluid. MSCs are defined or characterized by their ability to adhere to plastic, to express specific surface antigens, and to differentiate into osteogenic, chondrogenic, adipogenic
Braz J Med Biol Res. Publicado em: 2013-08
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36. Simultaneously expressed miR-424 and miR-381 synergistically suppress the proliferation and survival of renal cancer cells---Cdc2 activity is up-regulated by targeting WEE1
OBJECTIVES: MiRNAs are intrinsic RNAs that interfere with protein translation. Few studies on the synergistic effects of miRNAs have been reported. Both miR-424 and miR-381 have been individually reported to be involved in carcinogenesis. They share a common putative target, WEE1, which is described as an inhibitor of G2/M progression. Here, we studied the
Clinics. Publicado em: 2013-06