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Single-cell sequencing analysis reveals cancer-associated pericyte subgroup in esophageal squamous cell carcinoma to predict prognosis.
Front Immunol
January 2025
Department of Thoracic Surgery, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
Background: The role of cancer-associated pericytes (CAPs) in tumor microenvironment (TME) suggests that they are potential targets for cancer treatment. The mechanism of CAP heterogeneity in esophageal squamous cell carcinoma (ESCC) remains unclear, which has limited the development of treatments for tumors through CAPs. Therefore, a comprehensive understanding of the classification, function, cellular communication and spatial distribution of CAP subpopulations in ESCC is urgently needed.
View Article and Find Full Text PDFStored elastic bending tension as a mediator of embryonic body folding.
Cell Rep
January 2025
Department of Genetics and Developmental Biology, Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa 31096, Israel. Electronic address:
During development, amniote vertebrate embryos transform from a flat sheet into a three-dimensional cylindrical form through ventral folding of the lateral sides of the sheet (the lateral plate [LP]) and their fusion in the ventral midline. Using a chick embryo slice system, we find that the flat stage is actually a poised balance of opposing dorsal and ventral elastic bending tensions. An intact extracellular matrix (ECM) is required for generating tension, as localized digestion of ECM dissipates tension, while removal of endoderm or ectoderm layers has no significant effect.
View Article and Find Full Text PDFNup107 contributes to the maternal to zygotic transition by preventing the premature nuclear export of pri-miRNA 427.
Development
January 2025
Pediatric Genomics Discovery Program, Departments of Pediatrics and Genetics, Yale School of Medicine, 333 Cedar Street, New Haven, CT, 06520, USA.
Emerging evidence suggests that the nuclear pore complex can have unique compositions and distinct nucleoporin functions in different cells. Here, we show that Nup107, a key component of the NPC scaffold, varies in expression over development: it is expressed at higher levels in the blastula compared to the gastrula suggesting a critical role prior to gastrulation. We find depletion of Nup107 affects the differentiation of the early germ layers leading to an expansion of the ectoderm at the expense of endoderm and mesoderm.
View Article and Find Full Text PDFEffect of proinflammatory cytokines on blood-brain barrier integrity.
Eur Cytokine Netw
September 2024
The blood-brain barrier (BBB) consists of a unique system of brain microvascular endothelial cells, capillary basement membranes, and terminal branches ("end-feet") of astrocytes. The BBB's primary function is to protect the central nervous system from potentially harmful or toxic substances in the bloodstream by selectively controlling the entry of cells and molecules, including nutrients and immune system components. During neuroinflammation, the BBB loses its integrity, resulting in increased permeability, mostly due to the activity of inflammatory cytokines.
View Article and Find Full Text PDFMolecular and spatial analysis of tertiary lymphoid structures in Sjogren's syndrome.
Nat Commun
January 2025
Rheumatology Research Group, Department of Inflammation and Ageing, College of Medicine & Health, University of Birmingham, Birmingham, UK.
Tertiary lymphoid structures play important roles in autoimmune and non-autoimmune conditions. While many of the molecular mechanisms involved in tertiary lymphoid structure formation have been identified, the cellular sources and temporal and spatial relationship remain unknown. Here we use combine single-cell RNA-sequencing, spatial transcriptomics and proteomics of minor salivary glands of patients with Sjogren's disease and Sicca Syndrome, with ex-vivo functional studies to construct a cellular and spatial map of key components involved in the formation and function of tertiary lymphoid structures.
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