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A 35-year-old man was diagnosed with stage IIIC non-seminoma with paralysis of the lower half of his body due to 8th thoracic spine metastasis. The patient received bleomycin, etoposide, and cisplatin (BEP) therapy. On day 4 of the second course of BEP, the patient developed a fever and was diagnosed with coronavirus disease (COVID-19). COVID-19 was suspected to worsen because of cancer and chemotherapy-induced immunosuppression. However, the benefits of continuing BEP therapy outweighed these risks. After obtaining fully informed consent, BEP therapy was continued from day 5, while sotrovimab (anti-COVID-19 drug) was administered. The second course of BEP was completed without worsening severe COVID-19 or bleomycin-induced lung injury. The patient completed four courses of BEP, with normalization of tumor markers, partial response on imaging, and improvement in lower body paralysis. In this case, we successfully treated a patient with testicular germ cell tumor with chemotherapy while having COVID-19 without treatment delay. During the COVID-19 pandemic, concomitant chemotherapy and COVID-19 treatment are warranted because delaying treatment will decrease the efficacy of highly curative diseases such as germ cell tumors.
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http://dx.doi.org/10.1159/000533888 | DOI Listing |
Head Neck Pathol
September 2025
Department of Laboratory Medicine and Pathology, Mayo Clinic, 4500 San Pablo Road, Jacksonville, FL, 32224, USA.
Myoepithelial carcinoma (MECA) is a malignant neoplasm composed exclusively of myoepithelial cells and accounts for less than 1% of all salivary gland tumors. Its diagnosis is often challenging due to histologic overlaps with benign lesions and its variable morphologic presentation. Although molecular profiling has emerged as a valuable tool in salivary gland tumor classification, the genetic landscape of MECA remains incompletely defined.
View Article and Find Full Text PDFFront Cell Dev Biol
August 2025
Reproductive Medical Center, The Second Hospital of Jilin University, Changchun, China.
The gut microbiota, comprising trillions of bacteria, fungi, and viruses, exists in symbiosis with the host. As the largest microbial ecosystem in the human body. The gut microbiota not only shapes the homeostasis of the intestinal microenvironment through gut-derived metabolites but also exerts regulatory effects on the functions of diverse tissues and organs throughout the body via the intricate "gut-distal organ axis" mechanism.
View Article and Find Full Text PDFBiochem Biophys Rep
December 2025
Guangdong Ecological Meteorological Centre, Guangzhou, 510640, China.
The protogynous orange-spotted grouper (), a sequentially hermaphroditic teleost, relies on dynamic regulation of germ cell development and sex reversal mechanisms to achieve reproductive plasticity. The gene family, pivotal for germ cell development and transposon silencing across metazoans, remains poorly characterized in hermaphroditic species. Here, we investigate , a homologue in the orange-spotted grouper (.
View Article and Find Full Text PDFSmall Sci
September 2025
Fischell Department of Bioengineering University of Maryland, College Park Maryland 20742 USA.
Human induced pluripotent stem cells (hiPSCs) show great promise for personalized cell-based medicine, as they can be derived from easily accessible somatic cells and differentiated into all three germ layers without ethical concerns. This requires mass production of hiPSCs in 3D. However, contemporary methods for 3D culture result in hiPSC spheroids with significant size heterogeneity that is undesired for controlled differentiation and require the use of a high concentration of Rho-associated kinase inhibitor (RI) to improve the cell viability.
View Article and Find Full Text PDFFront Biosci (Landmark Ed)
August 2025
Department of Integrated Applied Life Science, Integrated Graduate School of Medicine, Engineering, and Agricultural Sciences, University of Yamanashi, 400-8510 Yamanashi, Japan.
Background: Lysosomes serve not only in the degradation of cellular components but also as calcium (Ca) stores. In this study, we investigated the effects of trans-Ned19, an inhibitor of lysosomal calcium channels known to block two-pore channels (TPCs), on fertilization and oocyte activation in mice.
Methods: Pronuclear formation was assessed via Hoechst 33342 staining, cortical granule release was evaluated using agglutinin-fluorescein isothiocyanate (LCA-FITC) staining, intracellular Ca levels were monitored with Cal-520 AM, and sperm motility was analyzed using a sperm motility analysis system (SMAS).