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NADPH oxidase, as a major source of intracellular reactive oxygen species (ROS), assumes an important role in the immune response and oxidative stress response of the body. NADPH oxidase 2 (NOX2) is the first and most representative member of the NADPH oxidase family, and its effects on the development of tumor cells are gaining more and more attention. Our previous study suggested that NCF4 polymorphism in p40phox, a key subunit of NOX2, affected the outcome of diffuse large B-cell lymphoma patients treated with rituximab. It hypothesized that NOX2-mediated ROS could enhance the cytotoxic effects of some anti-tumor drugs in favor of patients with tumors. Several reviews have summarized the role of NOX2 and its congeners-mediated ROS in anti-tumor therapy, but few studies focused on the relationship between the expression of NOX2 and anti-tumor drug resistance. In this article, we systematically introduced the NOX family, represented by NOX2, and a classification of the latest inhibitors and agonists of NOX2. It will help researchers to have a more rational and objective understanding of the dual role of NOX2 in tumor drug resistance and is expected to provide new ideas for oncology treatment and overcoming drug resistance in cancer.
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http://dx.doi.org/10.2174/0115680096277328240110062433 | DOI Listing |
Front Pharmacol
August 2025
Shenyang Key Laboratory of Vascular Biology, Science and Experimental Research Center of Shenyang Medical College, Shenyang, China.
MR409, a synthetic growth hormone-releasing hormone (GHRH) analogue, has demonstrated therapeutic potential in enhancing islet cell transplantation efficacy in diabetes mice and exerts beneficial effects on cardiovascular diseases. The present study investigated the renoprotective effects of MR409 on db/db and streptozotocin (STZ)-induced diabetic mice, focusing on its role in modulating oxidative stress and ferroptosis. db/db or STZ mice combined with high fat diet were used to establish the type 2 diabetic models.
View Article and Find Full Text PDFAllergol Immunopathol (Madr)
September 2025
Molecular Biology, Translational Research Laboratory, Hospital da Criança de Brasília José Alencar, Brasília-Brazil.
The diagnosis of chronic granulomatous disease (CGD), a congenital immunodeficiency affecting phagocyte function, remains a challenge for patients in Latin America. It is well established that dihydrorhodamine (DHR) flow cytometry is the most commonly used screening assay; however, few pediatric immunology centers in Brazil perform this test. This study reports data from a routine diagnostic workup for CGD conducted at a Brazilian children's hospital.
View Article and Find Full Text PDFTransplant Direct
September 2025
Unidad Transplante de О́rganos, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Madrid, Spain.
Extracorporeal photopheresis (ECP) is a well-established, safe, and effective immunomodulatory therapy currently used in clinics to decrease T cell-mediated immunity in various disorders, including autoimmune diseases and chronic rejection in organ transplantation. Although the ECP procedure has been shown to induce apoptotic cells that are reintroduced into the patient at the end of the treatment, the precise tolerogenic mechanisms mediated by ECP are not fully understood. Previous in vitro studies have demonstrated that early apoptotic cells express annexins on their cell surface, which suppress myeloid cell activation on stimulation with bacterial lipopolysaccharide through Toll-like receptors.
View Article and Find Full Text PDFFront Biosci (Landmark Ed)
August 2025
Laboratory of Molecular Biology, Research Centre for Medical Genetics (RCMG), 115522 Moscow, Russia.
Background: Schizophrenia (SZ) is associated with chronic oxidative stress in the patient's body. Previous studies revealed an increased copy number of genes for 47S pre-ribosomal RNA (pre-rRNA) in SZ patients. In this study, levels of oxidative stress and factors involved in the adaptive response to chronic stress (rDNA transcription) were, for the first time, compared in blood cells of patients with catatonic SZ(C) and paranoid SZ(P), chronic forms of schizophrenia, as well as healthy controls (HC).
View Article and Find Full Text PDFClin Immunol
September 2025
Department of Experimental Pathology, Immunology, and Microbiology, Faculty of Medicine, American University of Beirut, Beirut, Lebanon; Division of Pediatric Infectious Diseases, Department of Pediatrics and Adolescent Medicine, American University of Beirut Medical Center, Beirut, Lebanon; Center
Chronic Granulomatous Disease (CGD) is caused by mutations in the NADPH oxidase complex that impair the ability of phagocytes to eliminate injested pathogens. As a result, patients with CGD suffer from recurrent infections and chronic inflammation. We report the clinical, biochemical, and genetic basis of the disease in 17 CGD patients from Lebanon.
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