Two types of mast cells, MC(T) and MC(TC), exist in humans. MC(T) and MC(TC) are different in their granular neutral proteases, tissue localizations, and functions. This article describes the differences between the cutaneous mast cell receptors.
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http://dx.doi.org/10.1016/j.det.2007.06.013 | DOI Listing |
J Dermatol
January 2025
Henry Ford Health Department of Dermatology, Detroit, Michigan, USA.
Itch is a prominent symptom in many cutaneous disorders, including atopic dermatitis (AD), prurigo nodularis, and psoriasis. Itch is also a common but overlooked concern in patients with hidradenitis suppurativa (HS). Currently, the mechanisms underlying itch in HS remain unclear.
View Article and Find Full Text PDFPrev Vet Med
January 2025
DNAtech, Laboratório Veterinário, Lisboa, Portugal; CECAV, Centro de Ciência Animal e Veterinária, Faculdade de Medicina Veterinária, Universidade Lusófona-Centro Universitário de Lisboa, Portugal; CBIOS - Centro de Investigação em Biociências e Tecnologias da Saúde - Universidade Lusófona, Lisboa, Portugal.
Mast cell tumors (MCT) are among the most common neoplasia in dogs, representing up to 21 % of skin tumors. However, etiology and risk factors for its development remain unclear. This study aimed to reduce this knowledge gap by comprehensively analyzing 905 MCT cases diagnosed in Portugal between 2019 and 2021, using descriptive and inferential analyses.
View Article and Find Full Text PDFCan Vet J
January 2025
Department of Small Animal Clinical Sciences (Cormillot, Weissman, MacDonald-Dickinson) and Department of Veterinary Pathology (Dickinson), Western College of Veterinary MeDicine, University of Saskatchewan, 52 Campus Drive, Saskatoon, Saskatchewan S7N 5B4.
A 16-year-old castrated male domestic medium-hair cat was referred for examination of multiple cutaneous mast cell tumors displaying epitheliotropism. Staging tests were negative for distant metastasis. Toceranib phosphate therapy was initiated.
View Article and Find Full Text PDFAntioxidants (Basel)
November 2024
Diagnostic Laboratory, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, 546 27 Thessaloniki, Greece.
Mast cell tumors (MCTs) are common skin neoplasms in dogs. Prognostic indicators include histologic grade, clinical stage, high Ki-67 index, elevated argyrophilic nucleolus organizer regions (AgNOR) index, mutations, and recurrence after surgery. Blood serum redox status has been shown to correlate with prognostic factors in canine lymphoma and mammary tumors.
View Article and Find Full Text PDFFront Immunol
January 2025
Department of Basic and Translational Sciences, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, United States.
Introduction: A subtype of human mast cells (MCs) found in the skin and to a lesser extent in the lung and gut express a novel G protein-coupled receptor (GPCR) known as Mas-related GPCR-X2 (MRGPRX2, mouse counterpart MrgprB2). In addition to drug-induced pseudoallergy and cutaneous disorders, MrgprB2 contributes to ulcerative colitis, IgE-mediated lung inflammation and systemic anaphylaxis. Interestingly, most agonists activate MRGPRX2 with higher potency than MrgprB2.
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