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Unusual Cause of Ventricular Arrhythmia.
JACC Case Rep
January 2025
Department of Cardiovascular Magnetic Resonance, Hôpital Privé Jacques Cartier, Institut Cardiovasculaire Paris Sud, Massy, France.
Although relatively rare, cardiac metastases represent a significant clinical challenge because of their impact on cardiac function and overall patient prognosis. This case presents a rare and atypical presentation of a patient with ventricular arrhythmia revealing a metastatic cancer in the heart. A 59-year-old man with lung cancer was admitted for chest tightness and episodes of syncope.
View Article and Find Full Text PDFEverything you ever wanted to know about cancer stem cells in neuroendocrine neoplasms but were afraid to ask.
Endocr Oncol
January 2024
Centro de Investigación Biomédica en Red, CIBERONC, ISCIII, Madrid, Spain.
While the role of cancer stem cells (CSCs) in tumorigenesis, chemoresistance, metastasis, and relapse has been extensively studied in solid tumors, such as adenocarcinomas or sarcomas, the same cannot be said for neuroendocrine neoplasms (NENs). While lagging, CSCs have been described in numerous NENs, including gastrointestinal and pancreatic NENs (PanNENs), and they have been found to play critical roles in tumor initiation, progression, and treatment resistance. However, it seems that there is still skepticism regarding the role of CSCs in NENs, even in light of studies that support the CSC model in these tumors and the therapeutic benefits of targeting them.
View Article and Find Full Text PDFPAR2 promotes malignancy in lung adenocarcinoma.
Am J Transl Res
December 2024
Tianjin Medical University Cancer Institute and Hospital, Tianjin Medical University Tianjin 300070, China.
Proteinase-activated receptor-2 (PAR2) is closely linked to tumor malignancy, but its biological role in cancer remains underexplored. In this study, we assessed PAR2 expression in lung adenocarcinoma (LUAD) and normal lung tissues, analyzed associations between clinicopathological features and survival rates, and confirmed that PAR2 promotes apoptosis resistance and reduces cisplatin-induced cytotoxicity in lung cancer cells. Using TCGA datasets, western blotting, qPCR, and immunohistochemistry (IHC), we observed a significant increase in PAR2 levels in LUAD samples compared to normal tissues (P<0.
View Article and Find Full Text PDFProtocol for the Generation and 3D Culture of Fluorescently Labeled Multicellular Spheroids.
Methods Mol Biol
January 2025
Department of Internal Medicine II, University Hospital Frankfurt, Goethe University Frankfurt, Frankfurt am Main, Germany.
Spheroid culture systems have been extensively used to model the three-dimensional (3D) behavior of cells in vitro. Traditionally, spheroids consist of a single cell type, limiting their ability to fully recapitulate the complex inter-cellular interactions observed in vivo. Here we describe a protocol for generating cocultured spheroids composed of two distinct cell types, embedded within a 3D extracellular matrix (ECM) to better study cellular interactions.
View Article and Find Full Text PDFMicroenvironmental Regulation of Dormancy in Breast Cancer Metastasis: "An Ally that Changes Allegiances".
Adv Exp Med Biol
January 2025
Laboratory of Tumor Heterogeneity, Metastasis and Resistance, Department of Biomedicine, University of Basel, University Hospital Basel, Basel, Switzerland.
Breast cancer remission after treatment is sometimes long-lasting, but in about 30% of cases, there is a relapse after a so-called dormant state. Cellular cancer dormancy, the propensity of disseminated tumor cells (DTCs) to remain in a nonproliferative state for an extended period, presents an opportunity for therapeutic intervention that may prevent reawakening and the lethal consequences of metastatic outgrowth. Therefore, identification of dormant DTCs and detailed characterization of cancer cell-intrinsic and niche-specific [i.
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