Inflammatory cytokines (interleukin 1 alpha, 1 beta and tumor necrosis factor-alpha) induce the formation of nitrite by C6 astrocytoma cells in a manner that was blocked by inhibitors of NO synthase such as NG-monomethylarginine. They increase the formation of cGMP. This action was potentiated by isobutylmethylxanthine and was inhibited by NG-monomethylarginine. Interleukin-6 and interferon-gamma were inactive. It is concluded that the nitridergic signalling pathway is active in C6 cells and is a major target for inflammatory cytokines.
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http://dx.doi.org/10.1016/0006-8993(93)91003-b | DOI Listing |
Nat Commun
December 2024
Cancer Center, Department of Neurosurgery, Zhejiang Provincial People's Hospital,Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China.
Approximately 90% of glioblastoma recurrences occur in the peritumoral brain zone (PBZ), while the spatial heterogeneity of the PBZ is not well studied. In this study, two PBZ tissues and one tumor tissue sample are obtained from each patient via preoperative imaging. We assess the microenvironment and the characteristics of infiltrating immune/tumor cells using various techniques.
View Article and Find Full Text PDFCureus
November 2024
Neurosurgery, Erciyes University Faculty of Medicine, Kayseri, TUR.
Intramedullary schwannomas are a type of benign spinal cord tumor that originates from the Schwann cells of the nerve sheath. They are relatively rare and typically occur within the spinal cord itself, rather than in the surrounding tissue. Treatment options for cervical intramedullary schwannomas include surgical removal of the tumor, radiation therapy, and observation.
View Article and Find Full Text PDFAsian Pac J Cancer Prev
December 2024
Department of Medical Chemistry, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia.
Background: Glioblastoma multiforme (GBM) is an aggressive brain tumor that primarily affects adults. The Stupp Protocol, which includes surgical resection, chemoradiation, and monotherapy with temozolomide (TMZ), is the standard treatment regimen for GBM. However, repeated use of TMZ leads to resistance in GBM cells, resulting in a poor prognosis for patients.
View Article and Find Full Text PDFAsian Pac J Cancer Prev
December 2024
Guilan Road Trauma Research Center, Trauma Institute, Guilan University of Medical Sciences, Rasht, Iran.
Objective: One of the most malignant types of tumors with a remarkable ability of recurrence rate and aggressiveness is glioblastoma multiforme(GBM). Anyway, according to the restricted remedies accessible for the treatment of this serious tumor, there is no confident and stable therapeutic strategy. Notably, bioinformatics analysis can detect many effective genes in the diagnosis and treatment of GBM.
View Article and Find Full Text PDFAsian Pac J Cancer Prev
December 2024
Proteomics Research Center, Faculty of Paramedical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Background: Glioblastoma (GBM) is the most aggressive cancer in the central nervous system in glial cells. Finding novel biomarkers in GBM offers numerous advantages that can contribute to early detection, personalized treatment, improved patient outcomes, and advancements in cancer research and drug development. Integrating machine learning with RNAseq data in medicine holds significant potential for identifying novel biomarkers in various diseases, including cancer.
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