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Restoring natural killer cell activity in lung injury with 1,25-hydroxy vitamin D: a promising therapeutic approach.
Front Immunol
January 2025
Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, An-Najah National University, Nablus, Palestine.
Background And Aim: NK cells and NK-cell-derived cytokines were shown to regulate neutrophil activation in acute lung injury (ALI). However, the extent to which ALI regulates lung tissue-resident NK (trNK) activity and their molecular phenotypic alterations are not well defined. We aimed to assess the impact of 1,25-hydroxy-vitamin-D3 [1,125(OH)D] on ALI clinical outcome in a mouse model and effects on lung trNK cell activations.
View Article and Find Full Text PDFHistopathology of incidental non-neoplastic findings in transgenic CByB6F1-Tg(HRAS)2Jic mice used in toxicity studies.
J Toxicol Pathol
January 2025
Labcorp Early Development Laboratories, Inc., 3635 Concorde Parkway, Suite 100, Chantilly, VA, 20151, USA.
This technical report presents a collection of illustrative images and concise descriptions of non-neoplastic microscopic findings noted in transgenic CByB6F1-Tg(HRAS)2Jic (Tg.rasH2) mice from 26-week-carcinogenicity studies. A unique finding in the Tg.
View Article and Find Full Text PDFProtease-activated receptor 1 in the pathogenesis of cystic fibrosis.
BMJ Open Respir Res
January 2025
Murdoch Children's Research Institute, Parkville, Victoria, Australia.
Background: The most common cause of death in those with cystic fibrosis (CF) is respiratory failure due to bronchiectasis resulting from repeated cycles of respiratory infection and inflammation. Protease-activated receptor 1 (PAR1) is a cell surface receptor activated by serine proteases including neutrophil elastase, which is recognised as a potent modulator of inflammation. While PAR1 is known to play an important role in regulating inflammation, nothing is known about any potential role of this receptor in CF pathogenesis.
View Article and Find Full Text PDFClassification of Breast Cancer Through the Perspective of Cell Identity Models.
Adv Exp Med Biol
January 2025
INSERM, Bergonie Cancer Institute, University of Bordeaux, Bordeaux, France.
The mammary epithelium has an inner luminal layer that contains estrogen receptor (ER)-positive hormone-sensing cells and ER-negative alveolar/secretory cells, and an outer basal layer that contains myoepithelial/stem cells. Most human tumours resemble either hormone-sensing cells or alveolar/secretory cells. The most widely used molecular classification, the Intrinsic classification, assigns hormone-sensing tumours to Luminal A/B and human epidermal growth factor 2-enriched (HER2E)/molecular apocrine (MA)/luminal androgen receptor (LAR)-positive classes, and alveolar/secretory tumours to the Basal-like class.
View Article and Find Full Text PDFEfficacy of melatonin treatment in a cystic fibrosis mouse model of airway infection.
Sci Rep
January 2025
Departments of Genetics and Genome Sciences, Case Western Reserve University, Cleveland, OH, USA.
Approaches to mitigate the severity of infections and of immune responses are still needed for the treatment of cystic fibrosis (CF) even with the success of highly effective modulator therapies. Previous studies identified reduced levels of melatonin in a CF mouse model related to circadian rhythm dysregulation. Melatonin is known to have immunomodulatory properties and it was hypothesized that treatment with melatonin would improve responses to bacterial infection in CF mice.
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