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YAP1::TFE3 fusion in a case of malignant TFE3-rearranged PEComa of the lung: expanding the spectrum of pulmonary PEComa-like mesenchymal neoplasms.
Virchows Arch
January 2025
Division of Thoracic Surgery, University Health Network, Toronto, ON, Canada.
The family of PEComa encompasses a heterogeneous group of related mesenchymal neoplasms with myomelanocytic differentiation, a distinctive subset of which is characterized by TFE3 gene rearrangement. Recurrent YAP1::TFE3 fusion has been found in clear cell stromal tumor of the lung (CCST-L), and most recently, in two cases classified as inflammatory spindle cell PEComa. However, the potential relationship between CCST-L and PEComa remains unclear.
View Article and Find Full Text PDFInfluence of stromal neural crest progenitor cells on neuroblastoma radioresistance.
Int J Radiat Biol
January 2025
Departamento de Biología Celular, Universidad de Sevilla, Seville, Spain.
Purpose: A substantial proportion of children with high risk Neuroblastoma die within the first 5 years post-diagnosis despite the complex treatment applied. In the recent years, tumor environment has been revealed as key factor for cancer treatment efficacy. In this sense, non-tumorigenic Neural Crest progenitor cells from high risk patients, have been described as part of Neuroblastoma stroma, promoting tumor growth and contributing to mesenchyme formation.
View Article and Find Full Text PDFIntroduction: Solitary fibrous bladder tumors are extremely uncommon, with only a few cases reported. These fibroblastic mesenchymal neoplasms are typically benign, indolent, and slow growing.
Case Presentation: A 44-year-old male patient with obstructive uropathy was referred to our unit for workup.
ABCA1 promote tumor environment heterogeneity via epithelial mesenchymal transition in Huh7 and HepG2 liver cancer cell.
Front Pharmacol
December 2024
Department of Hepatobiliary Pancreatic Surgery, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China.
In this study, we delve into the intrinsic mechanisms of cell communication in hepatocellular carcinoma (HCC). Initially, employing single-cell sequencing, we analyze multiple malignant cell subpopulations and cancer-associated fibroblast (CAF) subpopulations, revealing their interplay through receptor-ligand interactions, with a particular focus on SPP1. Subsequently, employing unsupervised clustering analysis, we delineate two clusters, C1 and C2, and compare their infiltration characteristics using various tools and metrics, uncovering heightened cytotoxicity and overall invasion abundance in C1.
View Article and Find Full Text PDFPhosphaturic mesenchymal tumor of the popliteal fossa: a case report and literature review.
Front Oncol
December 2024
Joint Surgery Department, Weifang People's Hospital, Shandong Second Medical University, Weifang, Shandong, China.
Tumor-induced osteomalacia (TIO) is a rare paraneoplastic syndrome characterized by hypophosphatemia caused by excessive secretion of fibroblast growth factor-23 (FGF-23) by tumors. This leads to impaired bone mineralization and, ultimately, osteomalacia. The most common underlying cause is a phosphaturic mesenchymal tumor (PMT).
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