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Cancer: Glioma
Therapy: Chemotherapy

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Total 39 results found since Jan 2013.

Combination of B7H6-siRNA and temozolomide synergistically reduces stemness and migration properties of glioblastoma cancer cells
This study aimed to understand the potential role and molecular mechanism of the combination therapy of B7H6-siRNA and temozolomide in glioblastoma cancer. U87 cells were treated with B7H6-siRNA and temozolomide, separately and in combination. Cell viability, stemness, cell migration, and apoptosis were measured. The results of this work presented the synergistic effect of B7H6-siRNA and temozolomide in inhibiting the cancerous features of the U87 cell line. Down-regulating B7H6-siRNA expression inhibited the cell viability of U87 glioblastoma cancer cells and increased their sensitivity to temozolomide. In addition, a not...
Source: Experimental Cell Research - May 29, 2023 Category: Cytology Authors: Nadia Allahyarzadeh Khiabani Mohammad Amin Doustvandi Fateme Mohammadnejad Elnaz Salmani Hassan Kohal Neda Boushehri Mahdi Jafarlou Behzad Baradaran Source Type: research

siRNA targeting stathmin inhibits invasion and enhances chemotherapy sensitivity of stem cells derived from glioma cell lines.
Abstract Glioma is one of the most highly angiogenic tumors, and glioma stem cells (GSCs) are responsible for resistance to chemotherapy and radiotherapy, as well as recurrence after operation. Stathmin is substantial for mitosis and plays an important role in proliferation and migration of glioma-derived endothelial cells. However, the relationship between stathmin and GSCs is incompletely understood. Here we isolated GSCs from glioma cell lines U87MG and U251, and then used siRNA targeting stathmin for silencing. We showed that silencing of stathmin suppressed the proliferation, increased the apoptosis rate, and...
Source: Acta Biochimica et Biophysica Sinica - October 27, 2014 Category: Biochemistry Authors: Song Y, Mu L, Han X, Liu X, Fu S Tags: Acta Biochim Biophys Sin (Shanghai) Source Type: research

Silencing of epidermal growth factor, latrophilin and seven transmembrane domain-containing protein 1 (ELTD1) via siRNA induced cell death in glioblastoma.
In this study we aim to analyse whether this receptor may be used as a target molecule in glioblastoma therapy. Our results showed that small interfering RNA silencing ELTD1 caused cytotoxicity in glioblastoma cells. We also found that PDGFR, VEGFR and their common PI3K/mTOR intracellular pathway inactivation induced cytotoxicity in glioblastoma cells. Further, we found high percent of cytotoxicity in a low passage glioblastoma cell line after BEZ235 (a dual inhibitor of PI3K/mTOR pathway) treatment at nanomolar concentrations, compared to AG1433 (a PDGFR inhibitor) and SU1498 (a VEGFR inhibitor) that were only cytotoxic a...
Source: Journal of Immunoassay and Immunochemistry - July 6, 2016 Category: Biochemistry Tags: J Immunoassay Immunochem Source Type: research

CD73 as a target to improve temozolomide chemotherapy effect in glioblastoma preclinical model
AbstractGlioblastoma is the most devastating primary brain tumor and effective therapies are not available. Treatment is based on surgery followed by radio and chemotherapy with temozolomide (TMZ), but TMZ increases patient survival only by 2  months. CD73, an enzyme responsible for adenosine production, emerges as a target for glioblastoma treatment. Indeed, adenosine causes tumor-promoting actions and CD73 inhibition increases sensitivity to TMZ in vitro. Here, a cationic nanoemulsion to nasal delivery of siRNA CD73 (NE-siRNA CD73) ai ming glioblastoma treatment was employed alone or in combination with TMZ. In vitro, t...
Source: Cancer Chemotherapy and Pharmacology - May 15, 2020 Category: Cancer & Oncology Source Type: research

Effects of caffeine on cell viability and activity of histone deacetylase 1 and histone acetyltransferase in glioma cells
Conclusion Our data suggest that a new strategy, caffeine, could increase glioma cell death by decreasing HDAC1 activity and/or by increasing p300 activity. The changes in HDAC1 and p300 activities appeared to occur earlier than loss of RT2 cells.
Source: Tzu Chi Medical Journal - August 2, 2016 Category: Universities & Medical Training Source Type: research

Effects of caffeine on cell viability and activity of histone deacetylase 1  and histone acetyltransferase in glioma cells
Conclusion Our data suggest that a new strategy, caffeine, could increase glioma cell death by decreasing HDAC1 activity and/or by increasing p300 activity. The changes in HDAC1 and p300 activities appeared to occur earlier than loss of RT2 cells.
Source: Tzu Chi Medical Journal - September 3, 2016 Category: Universities & Medical Training Source Type: research

The role of drebrin in glioma migration and invasion.
Abstract Glioblastoma (GBM) is the most common primary brain tumor in adults. Despite current advances in therapy consisting of surgery followed by chemotherapy and radiation, the overall survival rate still remains poor. Therapeutic failures are partly attributable to the highly infiltrative nature of tumor adjacent to normal brain parenchyma. Recently, evidence is mounting to suggest that actin cytoskeleton dynamics are critical components of the cell invasion process. Drebrin is an actin-binding protein involved in the regulation of actin filament organization, and plays a significant role in cell motility; how...
Source: Experimental Cell Research - November 29, 2012 Category: Cytology Authors: Terakawa Y, Agnihotri S, Golbourn B, Nadi M, Sabha N, Smith CA, Croul SE, Rutka JT Tags: Exp Cell Res Source Type: research

High Expression of DEPDC1 Promotes Malignant Phenotypes of Breast Cancer Cells and Predicts Poor Prognosis in Patients With Breast Cancer
In this study, the immunohistochemistry results demonstrated that DEPDC1 was high-expressed in breast cancer tissues compared with the paired adjacent normal breast tissues, and its tendency at protein level was consistent with mRNA level from TCGA data. Moreover, DEPDC1 mRNA level revealed the strongest association with poor prognosis and development in breast cancer. In vitro assays showed that DEPDC1 overexpression resulted in significant promotion of proliferation by regulating cell cycle in MCF-7 cells, whilst an opposite effect was found in the MDA-MB-231 cells with DEPDC1 deletion. Notably, further investigation ind...
Source: Frontiers in Oncology - April 11, 2019 Category: Cancer & Oncology Source Type: research

Celastrol enhances TRAIL-induced apoptosis in human glioblastoma via the death receptor pathway
ConclusionsTaken together, the results of our study demonstrate that celastrol sensitizes glioma cells to TRAIL via the death receptor pathway and that DR5 plays an important role in the effects of this cotreatment. The results indicate that this cotreatment is a promising tumor-killing therapeutic strategy with high efficacy and low toxicity.
Source: Cancer Chemotherapy and Pharmacology - July 7, 2019 Category: Cancer & Oncology Source Type: research

LY294002 and sorafenib as inhibitors of intracellular survival pathways in the elimination of human glioma cells by programmed cell death
AbstractGliomas are aggressive brain tumors with very high resistance to chemotherapy throughout the overexpression of multiple intracellular survival pathways. Therefore, the aim of the present study was to investigate for the first time the anticancer activity of LY294002, phosphatidylinositol 3-kinase (PI3K) inhibitor and sorafenib, and rapidly accelerated fibrosarcoma kinase (Raf) inhibitor in the elimination of human glioma cells by programmed cell death. MOGGCCM (anaplastic astrocytoma, III) and T98G (glioblastoma multiforme, IV) cell lines incubated with LY294002 and/or sorafenib were used in the experiments. Simult...
Source: Cell and Tissue Research - July 8, 2021 Category: Cytology Source Type: research

Intelligent Nanoparticles With pH-Sensitive Co-Delivery of Temozolomide and siEGFR to Ameliorate Glioma Therapy
In this study, pH-sensitive and GBM-targeting nanovesicle (Tf-PEG-PAE(SS)) was fabricated. The chemotherapy drug (TMZ) and EGFR inhibitor (EGFR-siRNA) were co-encapsulated in the nanocarrier, and their anticancer outcomes were investigated in detail. In vitro experiments have shown that the nanocarrier transports TMZ and EGFR-siRNA efficiently into U87 cells, causing a vigorous apoptotic response by silencing the proliferative EGFR gene and increasing the drug concentration of TMZ simultaneously. An experimental study in mice bearing orthotropic glioma revealed that the accumulated nanocarriers in the tumor site could inhi...
Source: Frontiers in Genetics - July 12, 2022 Category: Genetics & Stem Cells Source Type: research

Suppression of Chloride Channel 3 Expression Facilitates Sensitivity of Human Glioma U251 Cells to Cisplatin Through Concomitant Inhibition of Akt and Autophagy
In this study, we investigated the role of chloride channel‐3 (ClC‐3) in cisplatin resistance. Autophagy was demonstrated by accumulation of LC3‐II, beclin 1 and Atg12‐Atg5. The ultrastructure changes were observed under electron microscope. Chemical staining with acridine orange or MDC was used to detect acidic vesicular organelles. Quantification of apoptosis was detected by PI and Annexin V staining. The mechanisms involved in the Akt pathway and autophagy were studied by western blot analysis. Our results showed that Akt phosphorylation and autophagy were induced by cisplatin in human glioma U251 cells. Specifi...
Source: The Anatomical Record Part B: The New Anatomist - February 13, 2013 Category: Anatomy Authors: Jing Su, Ye Xu, Lei Zhou, Hui‐Mei Yu, Jin‐Song Kang, Ning Liu, Cheng‐Shi Quan, Lian‐Kun Sun Tags: Full Length Article Source Type: research