Significance of Amphiregulin (AREG) for the Outcome of Low and High Grade Astrocytoma Patients

Background: Amphiregulin (AREG) is one of the ligands of the epidermal growth factor receptor which levels was shown to have a tight coherence with various types of cancer. AREG was also designated to be a promising marker for several types of cancer however precious little data about AREG role in the most frequent and generally lethal human brain tumours - astrocytomas reported up to date. The aim of the study was to investigate how AREG changes at epigenetic and expression levels reflect on astrocytoma malignancy and patient outcome.Methods: In total 205 low and high grade astrocytoma samples (15 pilocytic astrocytomas, 56 diffuse astrocytomas, 32 anaplastic astrocytomas and 102 glioblastomas) were used for target mRNA, protein expression and DNA methylation analysis applying qRT-PCR, Western-Blot and MS-PCR assays, respectively.Results: Present research revealed that AREG expression level and methylation in cancer tissue is dependent on the grade of astrocytoma. GBM tissue disclosed elevated AREG mRNA expression but reduced AREG protein level as compared to grade II and grade III astrocytomas (p
Source: Journal of Cancer - Category: Cancer & Oncology Authors: Tags: Research Paper Source Type: research

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Michal Yalon1†, Amos Toren1,2†, Dina Jabarin2, Edna Fadida3, Shlomi Constantini3 and Ruty Mehrian-Shai1* 1Pediatric Hemato-Oncology, Edmond and Lilly Safra Children's Hospital and Cancer Research Center, Sheba Medical Center, Ramat Gan, Israel 2The Sackler School of Medicine, Tel-Aviv University, Tel Aviv, Israel 3Department of Pediatric Neurosurgery, Dana Children's Hospital, Tel-Aviv-Sourasky Medical Center, Tel Aviv, Israel Pediatric brain tumors are the most common solid tumor type and the leading cause of cancer-related death in children. The immune system plays an important r...
Source: Frontiers in Oncology - Category: Cancer & Oncology Source Type: research
Conclusion: The efficacy of brainstem gliomas—treated with CyberKnife is efficacious with mild toxicity. Introduction Brainstem gliomas (BSGs) account for 5–15% of brain tumors and more likely happen in children (1). BSGs constitute at least 20% of childhood brain neoplasms (2), and the peak age is 7–9 years. In contrast, BSGs is rare in the adult population and account for only 1.5–2.5% of brain glioma, with a peak age of 40–70 years (1). Diffuse intrinsic pontine glioma(DIPG) was the most common type of BSG is that could invade the whole brainstem including midbrain, pons as well as me...
Source: Frontiers in Oncology - Category: Cancer & Oncology Source Type: research
In conclusion, we have shown the safety and efficacy of Vemurafenib in a pediatric patient with DS affected by PXA. Ethics Statement This study was carried out in accordance with the recommendations of the Internal Review Board of the Bambino Gesù Children's Hospital with written informed consent from all subjects. All subjects gave written informed consent in accordance with the Declaration of Helsinki. The protocol was approved by the Internal Review Board of the Bambino Gesù Children's Hospital. Informed Consent The authors declare that written informed consent was obtained from the pat...
Source: Frontiers in Oncology - Category: Cancer & Oncology Source Type: research
ConclusionH3 K27M mutations are frequent in adult midline gliomas and have a prognostic role similar to H3 K27M wild-type high-grade tumors.
Source: Journal of Cancer Research and Clinical Oncology - Category: Cancer & Oncology Source Type: research
CONCLUSION: H3 K27M mutations are frequent in adult midline gliomas and have a prognostic role similar to H3 K27M wild-type high-grade tumors. PMID: 30610375 [PubMed - as supplied by publisher]
Source: Clin Med Res - Category: Research Authors: Tags: J Cancer Res Clin Oncol Source Type: research
CONCLUSIONS: We provide evidence for the SASP regulating OIS in pediatric PA, with IL1B as a relevant mediator. SASP expression could enable prediction of progression in PA patients. Further investigation of the SASP driving the unpredictable growth of PAs, and its possible therapeutic application, is warranted. PMID: 30530705 [PubMed - as supplied by publisher]
Source: Clinical Cancer Research - Category: Cancer & Oncology Authors: Tags: Clin Cancer Res Source Type: research
This study compared clinicopathological features and survival between younger AYAs and children with low-grade glioma (LGG), a common brain tumor among AYAs.MethodsThis was a secondary analysis of Children ’s Oncology Group legacy study CCG-9891/POG-9130, which enrolled participants 0–21 years of age with newly-diagnosed LGG treated with surgery alone. For analysis, participants were categorized as children (0–14 years old) or early AYAs (eAYAs, 15–21 years old) and compared on demographics , clinical presentation, tumor characteristics, surgical outcomes, progression-free survival (P...
Source: Journal of Neuro-Oncology - Category: Cancer & Oncology Source Type: research
Brain tumors are the most common malignancy of childhood. Approximately 50% of pediatric CNS tumors are astrocytomas, most low grade. Low grade glioma (LGG) are WHO grade I or II tumors. Pilocytic astrocytoma (PA) is the most common; accounts for 33% of all gliomas in children 0 –14 years and ∼18% of all childhood brain tumors. Prognosis with this slow-growing tumor is excellent; 10 year overall survival of ∼95%. However, event free survival averages ∼50%. Patient age and extent of tumor resection are key prognostic factors; tumor location and size impact resection and outcome.
Source: Cancer Genetics and Cytogenetics - Category: Genetics & Stem Cells Authors: Source Type: research
Brain tumors are the most common solid tumor among children under 15, representing 20% of childhood cancers. Prognosis and therapeutic options vary dramatically based on histologic and molecular profiles. We have studied 222 brain tumors using the CHOP Comprehensive Solid Tumor Panel, which interrogates 238 cancer genes and 110 fusion partners. The most common tumors are pilocytic/pilomyxoid astrocytoma (67), medulloblastoma (23) and diffuse midline glioma (17). Clinically significant genomic alterations were identified in 93% of patients.
Source: Cancer Genetics and Cytogenetics - Category: Genetics & Stem Cells Authors: Source Type: research
Conclusion: A comprehensive method for detecting fusion genes in paediatric brain tumours was evaluated. This method identified KIAA1549–BRAF fusion variants quickly. Our results may help researchers interested in the role of fusion genes in tumourigenesis.
Source: Cancer Genomics and Proteomics - Category: Cancer & Oncology Authors: Tags: Article Source Type: research
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