Consulta: subjectFacets:"Glioma"
Registros recuperados: 5
Data/hora: 11/06/2024 06:39:52

Alterations in gene expression profiles correlated with cisplatin cytotoxicity in the glioma U343 cell line
Provedor de dados: 74
Autores: Carminati,Patricia Oliveira; Mello,Stephano Spano; Fachin,Ana Lucia; Junta,Cristina Moraes; Sandrin-Garcia,Paula; Carlotti,Carlos Gilberto; Donadi,Eduardo Antonio; Passos,Geraldo Aleixo Silva; Sakamoto-Hojo,Elza Tiemi.
Gliomas are the most common tumors in the central nervous system, the average survival time of patients with glioblastoma multiforme being about 1 year from diagnosis, in spite of harsh therapy. Aiming to study the transcriptional profiles displayed by glioma cells undergoing cisplatin treatment, gene expression analysis was performed by the cDNA microarray method. Cell survival and apoptosis induction following treatment were also evaluated. Drug concentrations of 12.5 to 300 μM caused a pronounced reduction in cell survival rates five days after treatment, whereas concentrations higher than 25 μM were effective in reducing the survival rates to ~1%. However, the maximum apoptosis frequency was 20.4% for 25 μM cisplatin in cells analyzed at 72 h,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Apoptosis; Cisplatin; Gene expression; Glioma.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572010000100027

Gemistocytic astrocytoma in the spinal cord in a dog: a case report
Provedor de dados: 45
Autores: Chaves,R.O.; Bazzi,T.; Copat,B.; Feranti,J.P.S.; Müller,D.C.M.; Corrêa,L.F.D.; Fighera,R.A.; Mazzanti,A.
ABSTRACT This paper reports a case of a rare variant of the cervical spinal cord astrocytoma diagnosed in a dog with progressive neurological signs, initially asymmetrical, not ambulatory tetraparesis, segmental reflexes and normal muscle tone in all four limbs and absence of pain upon palpation of the cervical spine. Myelography revealed attenuation of the ventral and dorsal contrast line in the third region of the fifth cervical vertebra. At necropsy intramedullary cylindrical mass that stretched from the third to the sixth cervical vertebra, which replaced all the gray matter of the spinal cord was observed. In the histological study, there was the replacement of the substance by neoplastic cells mantle arranged loosely. The cells were large and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Canine; Neoplasm; Glioma; Spinal cord.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352016000400901

MiR-320 inhibits the growth of glioma cells through downregulating PBX3
Provedor de dados: 48
Autores: Pan,Cuicui; Gao,Hua; Zheng,Ni; Gao,Qi; Si,Yuanquan; Zhao,Yueran.
Abstract  Background  MiR-320 is downregulated in multiple cancers, including glioma and acts as tumor suppressor through inhibiting tumor cells proliferation and inducing apoptosis. PBX3 (Pre-B cell leukemia homeobox 3), a putative target gene of miR-320, has been reported to be upregulated in various tumors and promote tumor cell growth through regulating MAKP/ERK pathway. This study aimed to verify whether miR-320 influences glioma cells growth through regulating PBX3.  Methods  Twenty-four human glioma and paired adjacent nontumorous tissues were collected for determination of miR-320 and PBX3 expression using RT-qPCR and western blot assays. Luciferase reporter assay was performed to verify the interaction between miR-320 and its targeting sequence in...
Tipo: Journal article
Palavras-chave: Glioma; Luciferase reporter assay; MiR-320; PBX3.
Ano: 2017
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602017000100224

Suppression of miR-221 inhibits glioma cells proliferation and invasion via targeting SEMA3B
Provedor de dados: 48
Autores: Cai,Guilan; Qiao,Shanshan; Chen,Kui.
BACKGROUND: Gliomas are the most common primary tumors in the central nervous system. Due to complicated signaling pathways involved in glioma progression, effective targets for treatment and biomarkers for prognosis prediction are still scant. RESULTS: In this study we revealed that a new microRNA (miR), the miR-221, was highly expressed in the glioma cells, and suppression of miR-221 resulted in decreased cellular proliferation, migration, and invasion in glioma cells. Mechanistic experiments validated that miR-221 participates in regulating glioma cells proliferation and invasion via suppression of a direct target gene, the Semaphorin 3B (SEMA3B). The rescue experiment with miR-221 and SEMA3B both knockdown results in significant reversion of miR-221...
Tipo: Journal article
Palavras-chave: MiR-221; Glioma; SEMA3B; Cancer metastasis.
Ano: 2015
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602015000100037

Thyroid hormone regulates protein expression in C6 glioma cells
Provedor de dados: 56
Autores: Trentin,A.G.; Alvarez-Silva,M.
Thyroid hormone (T3) is essential to normal brain development. Previously, we have shown that T3 induces cerebellar astrocyte proliferation. This effect is accompanied by alteration in glial fibrillary acidic protein (GFAP) and fibronectin organization. In the present study, we report that the C6 glioma cell line, which expresses GFAP and is classified as an undifferentiated astrocytic cell type, is a target for T3 action. The C6 monolayers were treated with 50 nM T3 for 3 days, after which the cells were maintained for 2 days without medium changes. In C6 cells, T3 induced the expression of proteins of 107, 73 and 62 kDa. The hormone also up-regulated protein bands of 100 (+50%), 37 (+50%) and 25.5 kDa (+50%) and down-regulated proteins of 94 (-100%),...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Thyroid hormone; Glioma; Protein synthesis; GFAP; Vimentin; Differentiation.
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1998001000008