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Retinoic acid antagonizes estrogen signaling to maintain adult uterine cell fate.
Proc Natl Acad Sci U S A
February 2025
Division of Dermatology, Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110.
Classical tissue recombination experiments demonstrate that cell-fate determination along the anterior-posterior axis of the Müllerian duct occurs prior to postnatal day 7 in mice. However, little is known about how these cell types are maintained in adults. In this study, we provide genetic evidence that a balance between antagonistic retinoic acid (RA) and estrogen signaling activity is required to maintain simple columnar cell fate in adult uterine epithelium.
View Article and Find Full Text PDFNUMB alternative splicing and isoform specific functions in development and disease.
J Biol Chem
January 2025
The Arthur and Sonia Labatt Brain Tumour Research Centre, The Hospital for Sick Children, 555 University Avenue, Toronto, ON, Canada, M5G 1X8; Department of Medical Biophysics, University of Toronto, 610 University Avenue, Toronto, ON, Canada, M5G 2M9. Electronic address:
The NUMB gene encodes a conserved adaptor protein with roles in asymmetric cell division and cell fate determination. First described as an inhibitor of Notch signaling, multi-functional NUMB proteins regulate multiple cellular pathways through protein complexes with ubiquitin ligases, polarity proteins and the endocytic machinery. The vertebrate NUMB protein isoforms were identified over two decades ago, yet the majority of functional studies exploring NUMB function in endocytosis, cell migration and adhesion, development and disease have largely neglected the potential for distinct isoform activity in design and interpretation.
View Article and Find Full Text PDFAssessing the Efficacy of Pyrolysis-Gas Chromatography-Mass Spectrometry for Nanoplastic and Microplastic Analysis in Human Blood.
Environ Sci Technol
January 2025
Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, 20 Cornwall Street, Woolloongabba, Queensland 4102, Australia.
Humans are constantly exposed to micro- and nanosized plastics (MNPs); however, there is still limited understanding of their fate within the body, partially due to limitations with current analytical techniques. The current study assessed the appropriateness of pyrolysis-gas chromatography-mass spectrometry (Py-GC-MS) analysis for the quantification of a range of polymers in human blood. An extraction protocol that reduced matrix interferences (false positives) of polyethylene (PE) and polyvinyl chloride (PVC) was developed and validated.
View Article and Find Full Text PDFMastering fate: Redistributing a pioneer protein to rewrite leukemia's script.
Hemasphere
January 2025
Children's Cancer Institute, Lowy Cancer Research Centre Randwick NSW Australia.
Religious Coping in Parents of Children with Down Syndrome: A Systematic Review of the Literature.
J Relig Health
January 2025
Divisions of Pediatric Neurology and Genetics, and Developmental-Behavioral Pediatrics Department of Pediatrics, Faculty of Medicine, Necmettin Erbakan University, 42090, Meram, Konya, Türkiye.
Having a child with Down syndrome (DS) is stressful for families. Social, physical, economic and emotional difficulties are the most challenging stressors for parents of children with DS. Therefore, parents who have children with DS have used various types of coping strategies.
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