Among the primary mesenchymal tumors of the hypopharynx and larynx, lipomas are rare. Macroscopically, they often resemble a retention cyst or laryngeal nodule. Spindle cell lipomas (SCLs) are an uncommon variant of lipoma. SCLs are extremely rare in the larynx; as far as we know, only 4 cases have been previously described in the literature. We present a new case of laryngeal SCL in a 65-year-old man who presented with a 1-year history of hoarseness, choking spells, stridor, and dyspnea. Examination revealed the presence of a large polyp on the left true vocal fold that had caused stenosis of the posterior glottis. The polyp was removed endoscopically, and the patient's stridor and dyspnea resolved. Histologically, the tumor was composed of bland, CD34-positive spindle cells with an abundant fibrous and myxoid stroma interspersed with mature fatty tissue. The patient was free of local recurrence at 2 years of follow-up.
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Sci China Life Sci
January 2025
Department of Obstetrics and Gynecology, The First Affiliated Hospital of USTC, The USTC RNA Institute, Ministry of Education Key Laboratory for Membraneless Organelles & Cellular Dynamics, Hefei National Research Center for Physical Sciences at the Microscale, Center for Advanced Interdisciplinary Science and Biomedicine of IHM, School of Life Sciences, Division of Life Sciences and Medicine, Biomedical Sciences and Health Laboratory of Anhui Province, University of Science and Technology of China, Hefei, 230027, China.
The centrosome is the microtubule-organizing center and a crucial part of cell division. Centrosomal RNAs (cnRNAs) have been reported to enable precise spatiotemporal control of gene expression during cell division in many species. Whether and how cnRNAs exist in C.
View Article and Find Full Text PDFLife Sci Alliance
April 2025
https://ror.org/0040axw97 Yunnan Key Laboratory of Cell Metabolism and Diseases, State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Center for Life Sciences, School of Life Sciences, Yunnan University, Kunming, China
NME7 (nucleoside diphosphate kinase 7), a lesser studied member of the non-metastatic expressed (NME) family, has been reported as a potential subunit of the γ-tubulin ring complex (γTuRC). However, its role in the cilium assembly and function remains unclear. Our research demonstrated that NME7 is located at the centrosome, including at the spindle poles during metaphase and at the basal bodies during cilium assembly.
View Article and Find Full Text PDFJ Immunother Cancer
January 2025
Internal Medicine I, Ulm University Hospital, Ulm, Germany
Background: Pancreatic ductal adenocarcinoma (PDAC) is mostly refractory to immunotherapy due to immunosuppression in the tumor microenvironment and cancer cell-intrinsic T cell tolerance mechanisms. PDAC is described as a "cold" tumor type with poor infiltration by T cells and factors leading to intratumoral T cell suppression have thus received less attention. Here, we identify a cancer cell-intrinsic mechanism that contributes to a T cell-resistant phenotype and describes potential combinatorial therapy.
View Article and Find Full Text PDFTransl Pediatr
December 2024
Department of Gynecology, Hangzhou Children's Hospital, Hangzhou, China.
Background: () is associated with a variety of malignancies. However, the role of in osteosarcoma and its underlying mechanism are not yet fully understood. This study aimed to explore the role and the mechanism of in osteosarcoma.
View Article and Find Full Text PDFJACC Case Rep
January 2025
Department of Cardiovascular Disease, Mayo Clinic, Rochester, Minnesota, USA.
Left ventricular outflow tract (LVOT) obstruction is mostly caused by hypertrophic obstructive cardiomyopathy and subaortic stenosis. Rarely, malignancy can lead to dynamic LVOT obstruction and has only been sporadically documented. We present the first case of dynamic and/or nearly fixed LVOT obstruction caused by a cardiac myxoid spindle cell sarcoma.
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