Nineteen patients with glioblastoma were treated with nicotinamide and carbogen and radiotherapy. Eight patients did not complete the protocol because of hepatic toxicity from phenytoin/nicotinamide drug interactions, persistent nausea or vomiting with nicotinamide, intolerance of the carbogen breathing apparatus, or other reason. In addition, early radiation neurotoxicity appeared increased.
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http://dx.doi.org/10.1016/0167-8140(96)01792-6 | DOI Listing |
Crit Rev Oncol Hematol
January 2025
Department of Medical Oncology, Institut Bergonié, Bordeaux, France. Electronic address:
Background And Objective: For selected patients with muscle-invasive bladder cancer (MIBC), trimodal therapy (TMT) incorporating transurethral resection of the tumor and chemoradiotherapy is an alternative to radical cystectomy. Concurrent chemotherapy (CC) is a pivotal component of TMT, however, the optimal CC protocol remains unknown. This systematic review aims to assess efficacy and safety outcomes of CC protocols used in TMT.
View Article and Find Full Text PDFAsian Pac J Cancer Prev
April 2024
Division of Hematology and Medical Oncology, Department of Internal Medicine, Faculty of Medicine Diponegoro University, Dr. Kariadi General Hospital, Semarang, Indonesia.
Objective: Tumor hypoxia induces the production of Hypoxia-Inducible Factor (HIF)-1 alpha, which interacts with NF-kB, leading to cancer proliferation and metastasis. This study investigated the effect of tumor hypoxia modulation using carbogen (95% O2 and 5% CO2) and nicotinamide on reducing soluble interleukin-2 receptor (sIL-2R) levels in newly diagnosed DLBCL patients with tissue overexpression of HIF-1α ≥10%.
Material And Methods: A prospective randomized controlled clinical trial was conducted at Dr.
Cancers (Basel)
December 2022
Division of Cancer Sciences, University of Manchester, Manchester M13 9PL, UK.
Background: As hypoxia can drive an immunosuppressive tumour microenvironment and inhibit CD8+ T cells, we investigated if patients with low tumour CD8+ T cells benefitted from hypoxia-modifying therapy.
Methods: BCON was a phase III trial that randomised patients with muscle-invasive bladder cancer (MIBC) to radiotherapy alone or with hypoxia-modifying carbogen plus nicotinamide (CON). Tissue microarrays of diagnostic biopsies from 116 BCON patients were stained using multiplex immunohistochemistry (IHC) with the markers CD8, CD4, FOXP3, CD68 and PD-L1, plus DAPI.
Oral Oncol
May 2022
Department of Pathology and Medical Biology, University Medical Center Groningen, Groningen, the Netherlands.
Objective: Tumor hypoxia results in worse local control and patient survival. We performed a digital, single-cell-based analysis to compare two biomarkers for hypoxia (hypoxia-inducible factor 1-alpha [HIF-1α] and pimonidazole [PIMO]) and their effect on outcome in laryngeal cancer patients treated with accelerated radiotherapy with or without carbogen breathing and nicotinamide (AR versus ARCON).
Materials And Methods: Immunohistochemical staining was performed for HIF-1α and PIMO in consecutive sections of 44 laryngeal cancer patients randomized between AR and ARCON.
Autophagy
August 2022
Department of Radiotherapy, Grow - School for Oncology and Developmental Biology, Maastricht University Medical Centre+, Maastricht, The Netherlands.
Hypoxia is a common feature of solid tumors and is associated with increased tumor progression, resistance to therapy and increased metastasis. Hence, tumor hypoxia is a prognostic factor independent of treatment modality. To survive hypoxia, cells activate macroautophagy/autophagy.
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