We present a chip device with an array of 900 gourd-shaped microwells designed to pair single cells of different types. The device consists of interdigitated array (IDA) electrodes and uses positive dielectrophoresis to trap cells within the microwells. Each side of a microwell is on a different comb of the IDA, so that cells of different types are trapped on opposite sides of the microwells, leading to close cell pairing. Using this device, a large number of cell pairs can be formed easily and rapidly, making it a highly attractive tool for controllable cell pairing in a range of biological applications.
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http://dx.doi.org/10.1039/c3lc50561h | DOI Listing |
Methods Mol Biol
January 2025
Department of Anatomy & Embryology, Leiden University Medical Center, Leiden, The Netherlands.
ScarTrace is a CRISPR/Cas9-based genetic lineage tracing method that allows for uniquely barcoding the DNA of single cells at a target GFP sequence during developing zebrafish embryos. Single cells from barcoded adult zebrafish can be isolated from various tissues (e.g.
View Article and Find Full Text PDFDevelopment
January 2025
Centre for Regenerative Medicine, Institute for Regeneration and Repair, University of Edinburgh, Edinburgh EH16 4UU, UK.
To maintain and regenerate adult tissues after injury, division and differentiation of tissue-resident stem cells must be precisely regulated. It remains elusive which regulatory strategies prevent exhaustion or overgrowth of the stem cell pool, whether there is coordination between multiple mechanisms, and how to detect them from snapshots. In Drosophila testes, somatic stem cells transition to a state that licenses them to differentiate, but remain capable of returning to the niche and resuming cell division.
View Article and Find Full Text PDFJ Clin Invest
January 2025
Department of Dermatology, and.
Cutaneous squamous cell carcinoma (cSCC) incidence and deaths continue to rise, underscoring the need for improved cSCC prevention. Elimination of actinic keratosis (AK) precursor lesions is a major strategy to prevent cSCC. Topical calcipotriol and 5-fluorouracil (5-FU) have been shown to eliminate AKs and reduce the risk of cSCC development, but the mechanism was undefined.
View Article and Find Full Text PDFJ Clin Invest
January 2025
Division of Infection and Immunity, Cardiff University School of Medicine, Cardiff, United Kingdom.
The T cell antigen presentation platform MR1 consists of 6 allomorphs in humans that differ by no more than 5 amino acids. The principal function of this highly conserved molecule involves presenting microbial metabolites to the abundant mucosal-associated invariant T (MAIT) cell subset. Recent developments suggest that the role of MR1 extends to presenting antigens from cancer cells, a function dependent on the K43 residue in the MR1 antigen binding cleft.
View Article and Find Full Text PDFJ Cancer
January 2025
Department of Laboratory Medicine, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, People's Republic of China.
Hepatocellular carcinoma (HCC) is one of the leading causes of cancer-related death worldwide. However, the molecular mechanism underlying the occurrence and development of HCC remains unclear. We are interested in the function of m6A methylation enzyme WTAP in the occurrence and development of HCC.
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