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Pseudomyxoma peritonei (PMP), a rare condition characterized by mucinous ascites in the peritoneal cavity, often leads to a poor prognosis. However, omics profiling of this disease remains significantly underexplored. Here, we present single-cell transcriptomic profiling of five PMP cases to identify cell type-specific gene features associated with PMP pathogenesis. Additionally, we provide bulk RNA-seq datasets from two independent cohorts: 19 fresh frozen tissue samples (12 PMPs) and 34 formalin-fixed paraffin-embedded (FFPE) samples (25 PMPs). We also offer protein expression data from a tissue microarray (TMA) analysis of 90 samples (45 PMPs). Our single-cell and bulk transcriptomic profiles, along with TMA verifications, reveal the cellular diversity of PMP, highlighting the coexistence of epithelial and mesenchymal characteristics within PMP cells. These datasets enhance our understanding of PMP pathogenesis and provide a valuable resource for uncovering the intricate molecular landscape of PMP, with the potential to improve clinical utility through further research.
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http://dx.doi.org/10.1038/s41597-025-04561-4 | DOI Listing |
JACS Au
June 2025
MOE Key Laboratory for Cellular Dynamics, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230027, China.
The functions of peripheral membrane proteins (PMPs) can be critically influenced by their orientations on membrane surfaces, which are inherently dynamic and challenging to characterize with precision. Molecular dynamics (MD) simulations, while powerful, face limitations in force field accuracy and sampling, particularly for systems involving intricate protein-lipid interactions. Here, we employ artifact-free membrane paramagnetic relaxation enhancement (mPRE) data as a quantitative benchmark to evaluate and refine MD simulations of KRas4B, a classical PMP, bound to anionic bilayers.
View Article and Find Full Text PDFEur Phys J Spec Top
December 2024
Molecular Biophysics Unit, Indian Institute of Science, Bangalore, Karnataka 560012, India.
Accurately sampling the membrane-bound conformations of peripheral membrane proteins (PMP) using classical all-atom molecular dynamics simulations (AAMD) is a formidable enterprise due to the wide rugged free energy landscape of the protein-membrane system. In general, AAMD-based extraction of binding geometry requires simulations of multiple systems with different initial user-defined binding poses that may not be exhaustive. As an alternative, advanced sampling methods are also applied to elucidate the membrane-binding mechanism of PMPs.
View Article and Find Full Text PDFTalanta
December 2025
School of Life and Environmental Sciences, Guangxi Key Laboratory of Automatic Detecting Technology and Instruments, Guilin University of Electronic Technology, Guilin, Guangxi, 541004, China. Electronic address:
Capillary electrophoresis (CE) is increasingly used in distributed field environmental monitoring, teaching, and citizen science. Consequently, the development of low-cost CE instruments using inexpensive components and do-it-yourself approaches has gained significant attention. Peristaltic micro-pumps (PMPs), with dimensions as small as 15 × 17 × 34 mm, offer advantages such as low cost, compact size, and energy efficiency, making them highly suitable for miniaturized CE instruments with automated flow-through injection.
View Article and Find Full Text PDFBiosens Bioelectron
June 2025
Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China; Key Laboratory of Biomedical Imaging Science and System, Chinese Academy of Sciences, Shenzhen, 518055, China; University of Chinese Academy of Sciences, Beijing, 100049, China. Electronic address: wh.z
Infectious diseases are prevalent in resource-limited regions with restricted access to health care. Nucleic acid testing is the gold standard for pathogen diagnosis. However, traditional methods are resource-intensive, which limits their use in point-of-care settings.
View Article and Find Full Text PDFSci Data
February 2025
Asan Institute for Life Sciences, Asan Medical Center, Seoul, 05505, Korea.
Pseudomyxoma peritonei (PMP), a rare condition characterized by mucinous ascites in the peritoneal cavity, often leads to a poor prognosis. However, omics profiling of this disease remains significantly underexplored. Here, we present single-cell transcriptomic profiling of five PMP cases to identify cell type-specific gene features associated with PMP pathogenesis.
View Article and Find Full Text PDF