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Antiproliferative activity of CD44 siRNA-PEI-PEG nanoparticles in glioblastoma: involvement of AKT signaling
CONCLUSION AND IMPLICATIONS: Our results suggest that PEI-PEG-loaded CD44 siRNA may attenuate the cell cycle by suppressing AKT signaling pathway.PMID:34909046 | PMC:PMC8621842 | DOI:10.4103/1735-5362.329928
Source: Cell Research - December 15, 2021 Category: Cytology Authors: Parvaneh Mahinfar Ahad Mokhtarzadeh Behzad Baradaran Elham Siasi Torbati Source Type: research

Silencing of DNA repair sensitizes pediatric brain tumor cells to γ-irradiation using gold nanoparticles
We present a nanoparticle (NP)-mediated delivery vehicle that effectively carries and protects siRNA in pediatric ependymoma (EP) and medulloblastoma (MB) cells. The delivery vehicle consists of gold NPs coated with a polymeric shell comprising polyethylene glycol (PG), chitosan and polyethyleneimine (Au-CP-PEI). NPs loaded with siRNA knocked down Ape1 expression by over 75% in both MB and EP cells. Further, this reduction in Ape1 expression is associated with an increase in DNA damage after irradiation. The results indicate that NP-associated delivery of siApe1 is a feasible approach to circumventing pediatric brain tumor...
Source: Environmental Toxicology and Pharmacology - May 11, 2017 Category: Environmental Health Source Type: research

Silencing of DNA repair sensitizes pediatric brain tumor cells to ɣ-irradiation using gold nanoparticles
We present a nanoparticle (NP)-mediated delivery vehicle that effectively carries and protects siRNA in pediatric ependymoma (EP) and medulloblastoma (MB) cells. The delivery vehicle consists of gold NPs coated with a polymeric shell comprising polyethylene glycol (PG), chitosan and polyethyleneimine (Au-CP-PEI). NPs loaded with siRNA knocked down Ape1 expression by over 75% in both MB and EP cells. Further, this reduction in Ape1 expression is associated with an increase in DNA damage after irradiation. The results indicate that NP-associated delivery of siApe1 is a feasible approach to circumventing pediatric brain tumor...
Source: Environmental Toxicology and Pharmacology - April 28, 2017 Category: Environmental Health Source Type: research

RNA interference targeting hypoxia-inducible factor 1α via a novel multifunctional surfactant attenuates glioma growth in an intracranial mouse model.
CONCLUSIONS Treating glioblastoma with siRNA targeting HIF-1α in vivo can significantly reduce tumor growth and increase survival in an intracranial mouse model, a finding that has direct clinical implications. PMID: 25423275 [PubMed - as supplied by publisher]
Source: Journal of Neurosurgery - November 25, 2014 Category: Neurosurgery Authors: Gillespie DL, Aguirre MT, Ravichandran S, Leishman LL, Berrondo C, Gamboa JT, Wang L, King R, Wang X, Tan M, Malamas A, Lu ZR, Jensen RL Tags: J Neurosurg Source Type: research

AI-16 * HIF-1a INHIBITION BY RNA INTERFERENCE DELIVERED VIA A NOVEL MULTIFUNCTIONAL SURFACTANT ATTENUATES GLIOMA GROWTH IN AN INTRACRANIAL MOUSE MODEL
CONCLUSIONS: Treating glioblastoma with siRNA targeting HIF-1α in vivo can significantly reduce tumor growth and increase survival in an intracranial mouse model. Our novel siRNA carrier improves delivery of this treatment molecule. With further study this might be extended for use in human patients with malignant gliomas.
Source: Neuro-Oncology - November 3, 2014 Category: Cancer & Oncology Authors: Jensen, R., Gillepsie, D. Tags: ANGIOGENESIS AND INVASION (CLINICAL AND/OR LABORATORY RESEARCH) Source Type: research