Interstitial cells of Cajal (ICCs), pacemaker and neuromodulator cells in the gastrointestinal (GI) tract, play an important role in GI motility. However, quantifying ICCs is challenging due to their mixed morphologies. Here, we present a protocol for preparing and immunostaining ICC in the murine gastric tunica muscularis using artificial intelligence (AI). We describe steps for obtaining muscles, whole-mount staining, and imaging ICC using confocal microscope. We then detail procedures for training an AI to identify ICCs and quantify their volume. For complete details on the use and execution of this protocol, please refer to Taheri et al..
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http://dx.doi.org/10.1016/j.xpro.2025.103644 | DOI Listing |
Sci Transl Med
March 2025
Department of Molecular Medicine, Scripps Research Institute, La Jolla, CA 92037, USA.
Interstitial lung disease (ILD) consists of a group of immune-mediated disorders that can cause inflammation and progressive fibrosis of the lungs, representing an area of unmet medical need given the lack of disease-modifying therapies and toxicities associated with current treatment options. Tissue-specific splice variants (SVs) of human aminoacyl-tRNA synthetases (aaRSs) are catalytic nulls thought to confer regulatory functions. One example from human histidyl-tRNA synthetase (HARS), termed HARS because the splicing event resulted in a protein encompassing the WHEP-TRS domain of HARS (a structurally conserved domain found in multiple aaRSs), is enriched in human lung and up-regulated by inflammatory cytokines in lung and immune cells.
View Article and Find Full Text PDFSci Adv
March 2025
Shu Chien-Gene Lay Department of Bioengineering, University of California San Diego, La Jolla, CA 92093, USA.
Aortic valve stenosis (AVS) is a progressive disease, wherein males more often develop valve calcification relative to females that develop valve fibrosis. Valvular interstitial cells (VICs) aberrantly activate to myofibroblasts during AVS, driving the fibrotic valve phenotype in females. Myofibroblasts further differentiate into osteoblast-like cells and produce calcium nanoparticles, driving valve calcification in males.
View Article and Find Full Text PDFMikrochim Acta
March 2025
School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, 20093, China.
A disposable, self-powered enzymatic biofuel cell (BFC) sensor integrated with a hollow microneedle array (HMNA) for glucose monitoring in interstitial fluid (ISF) is reported. The HMNA enables painless and minimally invasive ISF extraction. The BFC uses dehydrogenase (GDH) in conjunction with NAD, diaphorase (DI), and vitamin K (VK) serving as electron transfer mediators as the anode catalyst and Prussian blue (PB) as the electrochromic cathode.
View Article and Find Full Text PDFCells
March 2025
Departement of Rheumatology, Erasme-HUB Hospital, Université Libre de Bruxelles, 1070 Brussels, Belgium.
Tubulointerstitial hypoxia is a key factor for lupus nephritis progression to end-stage renal disease. Numerous aquaporins (AQPs) are expressed by renal tubules and are essential for their proper functioning. The aim of this study is to characterize the tubular expression of AQP1, AQP2 and AQP3, which could provide a better understanding of tubulointerstitial stress during lupus nephritis.
View Article and Find Full Text PDFLab Chip
March 2025
College of Medical Technology and Engineering, Henan University of Science and Technology, Luoyang 471023, China.
Cancer is a serious disease in human beings, and its high lethality is mainly due to the invasion and metastasis of cancer cells. Clinically, the accumulation and high orientation of collagen fibrils were observed in cancerous tissue, which occurred not only at the location of invasion but also at 10-20 cm from the tumor. Studies indicated that the invasion of cancer cells could be guided by the oriented collagen fibrils, even in a dense matrix characterized by difficulty degradation.
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