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() is a clinically significant opportunistic pathogen, and its colonization of the nasal cavity increases the risk of infections in humans. Elucidating the mechanisms of nasal colonization by would be beneficial in preventing infections, although this is intricate. The colonization of the nasal cavity by depends firstly on the organism's ability to adhere to the nasal cavity, with surface components such as ClfB, IsdA, and wall teichoic acid playing an important role. Secondly, must continuously adapt to the unfavorable environment in the nasal cavity, including epithelial cell shedding, weak acids, low nutrients, and mechanical forces, which is a prerequisite for maintaining reproduction. Furthermore, evades the host immune system's clearance mechanisms by resisting antimicrobial substances and interfering with immune cells. Concurrently, there are interfering, competitive, or mutually beneficial relationships between the nasal microbiota and that influence colonization.
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http://dx.doi.org/10.1080/1040841X.2025.2486171 | DOI Listing |
Medicine (Baltimore)
September 2025
Department of Internal Medicine, Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul, Republic of Korea.
Rationale: Extranodal natural killer (NK)/T-cell lymphoma is an uncommon non-Hodgkin lymphoma, prevalent in Asia. It often involves the nasal and upper airway regions but can disseminate to other sites like skin, soft tissue, testis, and gastrointestinal tract, characterized by Epstein-Barr virus association.
Patient Concerns: This report discusses a 48-year-old male initially diagnosed with Behcet syndrome with dry mouth, uveitis, pruritic macules, and human leukocyte antigen-B51 positivity.
BMJ Case Rep
September 2025
Hematology/Oncology, Louisiana State University Health Sciences Center Shreveport, Shreveport, Louisiana, USA.
Extranodal natural killer/T-cell lymphoma (ENKTCL), nasal type, is a rare and aggressive subtype of non-Hodgkin's lymphoma that often presents with extranodal involvement. While relapse patterns commonly involve the nasal cavity, lungs or skin, cardiac involvement is rare. We report a late 50-year-old patient with ENKTCL, nasal type, who achieved complete remission following chemotherapy and autologous stem cell transplantation.
View Article and Find Full Text PDFCureus
August 2025
Department of Oncology, University of Warmia and Mazury in Olsztyn, Olsztyn, POL.
Management of recurrent adenoid cystic carcinoma (ACC) in elderly patients remains challenging due to comorbidities, functional impairments, and anatomically complex tumor locations that complicate surgical access and increase operative risk. The ZAP-X Gyroscopic Radiosurgery System (ZAP Surgical Systems, Inc., San Carlos, CA, USA) offers a highly precise, non-invasive treatment modality, potentially suitable for salvage therapy in previously irradiated fields and in medically inoperable patients.
View Article and Find Full Text PDFJ Sleep Res
September 2025
Department of Otorhinolaryngology-Head and Neck Surgery, Kansai Medical University, Hirakata, Japan.
In obstructive sleep apnea (OSA), repeated airway obstruction alters mucosal inflammation, which increases exhaled nitric oxide (NO) production in the nasal cavity. However, the underlying mechanism remains unclear. Accordingly, we aimed to examine the mechanism underlying NO production in patients with OSA.
View Article and Find Full Text PDFJ Microbiol Immunol Infect
September 2025
Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, 238 Jie-Fang Road, Wuhan, Hubei, 430060, PR China; Department of Otolaryngology-Head and Neck Surgery, Central Laboratory, Renmin Hospital of Wuhan University, 238 Jie-Fang Road, Wuhan, Hubei, 430060, PR China.
Background: Microbes and their metabolites are implicated in respiratory diseases, including allergic rhinitis (AR); however, the interaction between the gut and respiratory tract and the role of microbes remains unclear. We investigated the gut and nasal microbiota variations between AR and control mice and their role in the bidirectional regulation of the gut-nasal axis.
Methods: We validated the OVA-induced establishment of an AR mouse model based on nasal symptoms and histopathology.