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A Rare Case Report of Extra-adrenal Pheochromocytoma Masquerading as a Pancreatic Head Malignancy.
Cureus
December 2024
Internal Medicine, University of Florida College of Medicine, Pensacola, USA.
Extra-adrenal pheochromocytomas are rare neuroendocrine tumors originating outside the adrenal glands and can pose significant diagnostic challenges due to their variable presentations. This report highlights a case of an extra-adrenal pheochromocytoma masquerading as a pancreatic head malignancy. We underscore the importance of considering extra-adrenal pheochromocytoma in the differential diagnosis of pancreatic masses, particularly when biochemical or clinical features suggest catecholamine excess.
View Article and Find Full Text PDFMelanoma-derived extracellular vesicles transfer proangiogenic factors.
Oncol Res
January 2025
Department of Glycoconjugate Biochemistry, Faculty of Biology, Institute of Zoology and Biomedical Research, Jagiellonian University, Krakow, 30-387, Poland.
Angiogenesis, the expansion of pre-existing vascular networks, is crucial for normal organ growth and tissue repair, but is also involved in various pathologies, including inflammation, ischemia, diabetes, and cancer. In solid tumors, angiogenesis supports growth, nutrient delivery, waste removal, and metastasis. Tumors can induce angiogenesis through proangiogenic factors including VEGF, FGF-2, PDGF, angiopoietins, HGF, TNF, IL-6, SCF, tryptase, and chymase.
View Article and Find Full Text PDFMelanoma cell line-derived exosomal miR-424-5p: a key promoter of angiogenesis through LATS2 interaction.
Oncol Res
January 2025
Department of Bone and Soft Tissue Tumors and Melanoma, Affiliated Tumor Hospital of Xinjiang Medical University, Urumqi, 830000, China.
Objectives: Melanoma is a highly aggressive and metastatic form of cancer, and the role of exosomal microRNAs (miRNAs) in its progression remains largely unexplored. This study aimed to investigate the effects of melanoma cell-derived exosomal miR-424-5p on angiogenesis and its underlying mechanisms.
Methods: Exosomes were isolated from melanoma cell lines A375 and A2058, and their effects on the proliferation, migration, and angiogenesis of human umbilical vein endothelial cells (HUVECs) were examined.
The impact of cytokines and tumour-conditioned medium on the properties of murine in vitro generated myeloid-derived suppressor cells.
Scand J Immunol
February 2025
Institute of Chemical Biology and Fundamental Medicine SB RAS, Novosibirsk, Russia.
Myeloid-derived suppressor cells (MDSCs) are a heterogeneous group of immature myeloid cells playing a critical role in immune suppression. In vitro-generated MDSCs are a convenient tool to study the properties of tumour-associated MDSCs. Here, we compared six protocols for in vitro generation of functional mouse MDSCs from bone marrow progenitors.
View Article and Find Full Text PDFBasophil-Derived IL-4 Production and Its Potential Pro-Tumoural Role in Th2-Polarisation Within Sentinel Lymph Nodes of Primary Cutaneous Melanoma.
Exp Dermatol
January 2025
Department of Dermatology, Kansai Medical University, Hirakata, Osaka, Japan.
Chronic inflammation in the tumour microenvironment (TME) via Th2-polarisation promotes melanoma progression and metastasis, making it a target for immunotherapy. Interleukin (IL)-4 is considered essential for Th2-polarisation in the TME; however, its source remains unknown. Basophils have been postulated as one of its sources.
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