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Decellularized tissues retain the extracellular matrix (ECM), shape, and composition that are unique to the source tissue. Previous studies using decellularized tissue lysates and powders have shown that tissue-specific ECM plays a key role in cellular function and wound healing. However, creating decellularized tissues composed of tissue-specific ECM with customizable shapes and structures for use as scaffolding materials remains challenging. In this study, a method for compacting decellularized tissue powder into blocks is developed using cold isostatic pressing (CIP). Custom-shaped ECM blocks and composite ECM blocks are fabricated using silicone molds. Additionally, an ECM block with a two-layer structure is obtained through a two-step CIP process. Cells are observed to infiltrate porous ECM blocks that are created using sodium chloride and transglutaminase. These results highlight the development of an effective method for producing ECM blocks using CIP with customizable shapes, compositions, and structures, making them suitable for use as cell culture scaffolds.
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http://dx.doi.org/10.1002/adbi.202400398 | DOI Listing |
Cell Rep Med
September 2025
Biological Sciences Platform, Sunnybrook Research Institute, Toronto, ON, Canada; Department of Medical Biophysics, University of Toronto, Toronto, ON, Canada. Electronic address:
The success of immune checkpoint inhibitors is limited by multiple factors, including poor T cell infiltration and function within tumors, partly due to a dense extracellular matrix (ECM). Here, we investigate modulating the ECM by targeting integrin α5β1, a major fibronectin-binding and organizing integrin, to improve immunotherapy outcomes. Use of a function-blocking murinized α5β1 antibody reduces fibronectin fibril formation, enhances CD8 T cell transendothelial migration, increases vascular permeability, and decreases vessel-associated collagen.
View Article and Find Full Text PDFAm J Respir Cell Mol Biol
September 2025
Univ. of Pennsylvania, Medicine, Philadelphia, Pennsylvania, United States.
Lymphangioleiomyomatosis (LAM) is a rare lung disease caused by hyperactivation of the mechanistic/mammalian target of rapamycin 1 (mTORC1) growth pathway in a subset of mesenchymal lung cells. Histopathologically, LAM lesions have been described as immature smooth muscle-like cells positive for the immature melanocytic marker HMB45/PMEL/gp100 and phosphorylated ribosomal protein S6 (pS6). Advances in single cell sequencing (scRNA-seq) technology allowed us to group LAM cells according to their expression of cancer stem cell (CSC) genes and identify three clusters: a high CSC-like state (SLS), an intermediate state, and a low CSC-like inflammatory state (IS).
View Article and Find Full Text PDFPlatelets
December 2025
Department of Cellular and Physiological Sciences, University of British Columbia, Vancouver, BC, Canada.
The integrin family of extracellular matrix (ECM) adhesion receptors plays a central role in platelet function, including adhesion and aggregation. In resting platelets, integrins exist in a low-affinity state for their ligands, and are activated upon ligand binding to the extracellular domain or binding of cytoplasmic proteins such as talin to the intracellular β-tail. Talin function is regulated through autoinhibition, which reduces its integrin-activating function.
View Article and Find Full Text PDFJ Dairy Sci
September 2025
Department of Animal Sciences, University of Illinois, Urbana, IL 61801. Electronic address:
This experiment was conducted to determine the effects of feeding rumen-protected Met (RPM; KESSENT M, Kemin Industries Inc., Des Moines, IA) and rumen-protected Lys (RPL; LysiGEM, Kemin Industries Inc., Des Moines, IA) prepartum at the same AA-to-ME ratio (3.
View Article and Find Full Text PDFJ Ethnopharmacol
September 2025
Key Laboratory for Traditional Chinese Korean Medicine Research (State Ethnic Affairs), College of Pharmacy, Yanbian University, Yanji, Jilin Province, 133002, China. Electronic address:
Ethnopharmacological Relevance: Dark tea, a post-fermented tea, has traditionally been used to regulate liver disorders. As an ethnomedicinal plant, its efficacy in alleviating chronic liver disease has been demonstrated.
Aim Of The Study: This study explored the protective effect and potential mechanism of dark tea extract (DTE) against hepatic fibrosis.