Micro-fabrication and nano-fabrication provide useful approaches to address fundamental biological questions by mimicking the physiological microenvironment in which cells carry out their functions. In particular, 2D patterns and 3D scaffolds obtained via lithography, direct laser writing, and other techniques allow for shaping hydrogels, synthetic polymers and biologically derived materials to create structures for (single) cell culture. Applications of micro-scaffolds mimicking cell niches include stem cell self-renewal, differentiation, and lineage specification. This review moves from technological aspects of scaffold microfabrication for cell biological applications to a broad overview of advances in (stem) cell research: achievements for embryonic, induced pluripotent, mesenchymal, and neural stem cells are treated in detail, while a particular section is dedicated to micro-scaffolds used to study single cells in basic cell biology.
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http://dx.doi.org/10.1016/j.copbio.2021.08.016 | DOI Listing |
Respir Res
January 2025
Department of Regenerative and Infectious Pathology, Hamamatsu University School of Medicine, 1-20-1 Handayama Chuo-ku, Hamamatsu, Shizuoka, 431-3192, Japan.
Background: Recent advances in comprehensive gene analysis revealed the heterogeneity of mouse lung fibroblasts. However, direct comparisons between these subpopulations are limited due to challenges in isolating target subpopulations without gene-specific reporter mouse lines. In addition, the properties of lung lipofibroblasts remain unclear, particularly regarding the appropriate cell surface marker and the niche capacity for alveolar epithelial cell type 2 (AT2), an alveolar tissue stem cell.
View Article and Find Full Text PDFNephrol Dial Transplant
January 2025
School of Biosciences and Bioengineering, Indian Institute of Technology (IIT), Mandi, Himachal Pradesh, India.
Cardiorenal syndrome (CRS) is represented as an intricate dysfunctional interplay between the heart and kidneys, marked by cardiorenal inflammation and fibrosis. Unlike other organs, the repair process in cardiorenal injury involves a regenerative phase characterized by proliferation and polyploidization, followed by a subsequent pathogenic phase of fibrosis. In CRS, acute or chronic cardiorenal injury leads to hyperactive inflammation and fibrotic remodeling, associated with injury-mediated immune cell (Macrophages, Monocytes, and T-cells) infiltration and myofibroblast activation.
View Article and Find Full Text PDFThe maintenance of a healthy epithelial-endothelial juxtaposition requires cross-talk within glomerular cellular niches. We sought to understand the spatially-anchored regulation and transition of endothelial and mesangial cells from health to injury in DKD. From 74 human kidney samples, an integrated multi-omics approach was leveraged to identify cellular niches, cell-cell communication, cell injury trajectories, and regulatory transcription factor (TF) networks in glomerular capillary endothelial (EC-GC) and mesangial cells.
View Article and Find Full Text PDFcan persist asymptomatically within tissues for extended periods. This remarkable feat is achieved through intricate host-pathogen interactions in immune cell aggregates called granulomas, wherein find favorable cellular niches to exploit while the host limits its expansion and tissue dissemination. Here, using a mouse model of persistent infection, we identify a host-protective role of eosinophils in control of Typhimurium ( Tm) infection within the mesenteric lymph nodes (MLN), the main lymphoid tissue of Tm persistence.
View Article and Find Full Text PDFMol Biol Rep
January 2025
Goat Genetics and Breeding Division, ICAR-Central Institute for Research On Goats, Makhdoom, Farah, Mathura, 281 122, Uttar Pradesh, India.
Background: Extracellular matrix (ECM) proteins play a crucial role in regulating the biological properties of adherent cells. For cryopreserved fibroblasts, a favourable ECM environment can help restore their natural morphology and function more rapidly, minimizing post-thaw stress responses.
Methods And Results: This study explored the functional responses of cryopreserved enriched caprine adult dermal fibroblast (cadFibroblast) cells to structural [collagen-IV and rat tail collagen (RTC)] and adhesion ECM proteins (laminin, fibronectin, and vitronectin) under in vitro culture conditions.
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