Articles by Nathaniel P. Hoyle in JoVE
Flexible Measurement of Bioluminescent Reporters Using an Automated Longitudinal Luciferase Imaging Gas- and Temperature-optimized Recorder (ALLIGATOR) Priya Crosby1, Nathaniel P. Hoyle1, John S. O'Neill1 1MRC Laboratory of Molecular Biology Genetically encoded luciferase is a popular non-invasive reporter of gene expression. Use of an automated longitudinal luciferase imaging gas- and temperature-optimized recorder (ALLIGATOR) enables longitudinal recording from bioluminescent cells under a wide range of conditions. Here we show how ALLIGATOR may be used in the context of circadian rhythms research.
Other articles by Nathaniel P. Hoyle on PubMed
Circadian Rhythms: Hijacking the Cyanobacterial Clock Current Biology : CB. | Pubmed ID: 24309283 Using basic research to advance a practical application, a recent study demonstrates that the circadian clock in cyanobacteria can be 'reprogrammed' to improve yields of heterologous protein production - a green future surely beckons.
Circadian Actin Dynamics Drive Rhythmic Fibroblast Mobilization During Wound Healing Science Translational Medicine. | Pubmed ID: 29118260 Fibroblasts are primary cellular protagonists of wound healing. They also exhibit circadian timekeeping, which imparts an approximately 24-hour rhythm to their biological function. We interrogated the functional consequences of the cell-autonomous clockwork in fibroblasts using a proteome-wide screen for rhythmically expressed proteins. We observed temporal coordination of actin regulators that drives cell-intrinsic rhythms in actin dynamics. In consequence, the cellular clock modulates the efficiency of actin-dependent processes such as cell migration and adhesion, which ultimately affect the efficacy of wound healing. Accordingly, skin wounds incurred during a mouse's active phase exhibited increased fibroblast invasion in vivo and ex vivo, as well as in cultured fibroblasts and keratinocytes. Our experimental results correlate with the observation that the time of injury significantly affects healing after burns in humans, with daytime wounds healing ~60% faster than nighttime wounds. We suggest that circadian regulation of the cytoskeleton influences wound-healing efficacy from the cellular to the organismal scale.