We report a case of primary melanoma of a female urethra diagnosed at a non-metastatic stage in a 48-year-old patient with a history of breast carcinoma treated with radiotherapy and hormone therapy. The patient was consulting for dysuria, hematuria, and perineal pain. The clinical examination found a prolapsed and black mass, developed at the expense of the urethra and located at the anterosuperior part of the vulva. The mass biopsy revealed a proliferation of fusiform and globular cells loaded with black pigment expressing the anti-HMB 45 and PS 100 antibodies. The extension assessment showed an absence of secondary localization. The patient underwent total cystourethrectomy without inguinal lymphadenectomy. There was no recurrence observed on day 100 following the surgery.
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http://dx.doi.org/10.1016/j.annpat.2023.08.003 | DOI Listing |
J Immunother Cancer
January 2025
Qingdao Key Laboratory of Materials for Tissue Repair and Rehabilitation, School of Rehabilitation Sciences and Engineering, University of Health and Rehabilitation Sciences, Qingdao, Shandong, People's Republic of China
Background: Tumor cells can drive the senescence of effector T cells by unbalancing their lipid metabolism, thereby limiting adoptive T cell therapy and contributing to tumor immune evasion. Our objective is to provide a feasible strategy for enhancing T cell treatment efficacy against solid tumors.
Methods: In this study, liposomal arachidonyl trifluoromethyl ketone (ATK) was anchored onto the adoptive T cell surface via bioorthogonal reactions, aiming to specifically inhibit the group IVA cytosolic phospholipase Aα (cPLAα), a key enzyme facilitating phospholipid metabolism and senescent state of T cells.
J Immunother Cancer
January 2025
Paris-Saclay University, Gif-sur-Yvette, Île-de-France, France
Background: Nivolumab is an immune checkpoint inhibitor (ICI) that selectively inhibits programmed cell death protein 1 activation, restoring antitumor immunity. ICIs are indicated for various types of advanced solid tumors; however, not all patients benefit from them, and tools that could be used in the clinic to predict response to treatment represent an unmet need. Here we describe the development of a new population pharmacokinetic (PPK) model in patients treated with nivolumab in clinical trials.
View Article and Find Full Text PDFChilds Nerv Syst
January 2025
Department of Pediatric Neurosurgery, Medical University of Silesia in Katowice, Medykow 16, 40-752, Katowice, Poland.
Purpose: This study aimed to summarize the existing English-language literature on central nervous system (CNS) meningeal melanocytomas in children, and additionally describe our institutional case report.
Methods: PubMed database was screened on September 2, 2024, for English-language papers reporting on pediatric patients with CNS meningeal melanocytoma.
Results: A total of 17 papers reporting on 18 patients with 19 CNS meningeal melanocytomas were found in the literature.
Front Immunol
January 2025
Institute of Urology and Nephrology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China.
Background: Muscle-invasive bladder cancer (MIBC) is a prevalent cancer characterized by molecular and clinical heterogeneity. Assessing the spatial heterogeneity of the MIBC microenvironment is crucial to understand its clinical significance.
Methods: In this study, we used imaging mass cytometry (IMC) to assess the spatial heterogeneity of MIBC microenvironment across 185 regions of interest in 40 tissue samples.
Clin Transl Med
January 2025
Department of Urology, Second Hospital of Tianjin Medical University, Tianjin, China.
Background: Atezolizumab plus bevacizumab has shown promising efficacy in advanced mucosal melanoma in the multi-centre phase II study. This report updates 3-year survival outcomes and multi-omics analysis to identify potential response biomarkers.
Methods: Forty-three intention-to-treat (ITT) patients received intravenous administration of atezolizumab and bevacizumab every 3 weeks.
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