Issues
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Cover image
Cover Image
Cover: The image depicts a surface rendering of secretory granules containing newly synthesized insulin (spectrum color), the Golgi complex (magenta) and the nucleus (blue) from a pancreatic islet β-cell. Granules are color-coded based on distance from the Golgi. Original data were obtained from islets expressing the proinsulin reporter proCpepSNAP, which was pulse-labeled with SNAPtag substrate and chased for 2 h to monitor the maturation of insulin granules. Islet cells were immunostained for GM130 (Golgi) and counterstained with DAPI (nucleus). Images were collected as confocal z-stacks, deconvolved and rendered using Imaris (BitPlane) software. See article by S. C. Bearrows et al. (jcs231373).
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RESEARCH HIGHLIGHTS
STICKY WICKET
FIRST PERSON
CELL SCIENTISTS TO WATCH
REVIEWS
Emerging links between cell competition and Alzheimer's disease
Summary: An introduction to the molecular mechanisms of cell competition, and the biological relevance of competition in the nervous system in the context of AD.
New insights into extracellular vesicle biogenesis and function
Summary: This Review highlights some of the recent findings regarding the roles of extracellular vesicles in physiological and pathological processes.
SHORT REPORT
Regulation of dendrite morphology and excitatory synapse formation by zDHHC15
Summary: Disruption of zDHHC15 function in primary hippocampal cultures reduces dendritic outgrowth, spine maturation, excitatory synapse density and trafficking of PSD-95 into dendrites.
RESEARCH ARTICLES
Dynamic label-free imaging of lipid droplets and their link to fatty acid and pyruvate oxidation in mouse eggs
Highlighted Article: Lipid droplets reorganise in mouse eggs, and maintain a dynamic balance of oxidation of fatty acids and pyruvate.
VGLL3 operates via TEAD1, TEAD3 and TEAD4 to influence myogenesis in skeletal muscle
Summary: VGLL3 interacts with TEAD transcription factors to direct expression of crucial muscle regulatory genes and contribute to the control of skeletal myogenesis.
Chromogranin B regulates early-stage insulin granule trafficking from the Golgi in pancreatic islet β-cells
Summary: A novel fluorescent pulse-chase technology is used to demonstrate that CgB regulates granule budding in the islet β-cell.
Repair-independent functions of DNA-PKcs protect irradiated cells from mitotic slippage and accelerated senescence
Highlighted Article: Although unnecessary for NHEJ in irradiated cells, DNA-PKcs serves a critical role after DNA repair by downregulating DNA damage signaling to protect cells from mitotic slippage and senescence.
Centrin2 from the human parasite Toxoplasma gondii is required for its invasion and intracellular replication
Highlighted Article: Centrin2 from the human parasite Toxoplasma gondii is incorporated into multiple cytoskeletal structures to serve distinct functions in invasion and replication that are required for its survival.
A trap mutant reveals the physiological client spectrum of TRC40
Summary: A strategy to decipher which tail-anchored proteins do (as opposed to can or must) use the TRC pathway in intact cells generates a comprehensive list of human TRC40 clients.
Increasing ergosterol levels delays formin-dependent assembly of F-actin cables and disrupts division plane positioning in fission yeast
Summary: Formin Cdc12 actin cable formation is inhibited by increased ergosterol levels in fission yeast, resulting in defective cytokinetic ring assembly and division plane position.
Ca2+ entry via TRPC1 is essential for cellular differentiation and modulates secretion via the SNARE complex
Summary: TRPC1 modulates Ca2+ entry, which is essential in adipocyte differentiation and adiponectin secretion, through facilitating SNARE complex formation, thereby maintaining metabolic homeostasis.
Rho kinase-dependent apical constriction counteracts M-phase apical expansion to enable mouse neural tube closure
Highlighted Article: Biomechanical integration of apical constriction and interkinetic nuclear migration in the pseudostratified epithelium of the mammalian spinal neural tube requires the actomyosin regulator Rock.
CORRECTION
Call for papers - Cilia and Flagella: from Basic Biology to Disease
We are welcoming submissions for our upcoming special issue: Cilia and Flagella: from Basic Biology to Disease. This issue will be coordinated by two Guest Editors: Pleasantine Mill (University of Edinburgh) and Lotte Pedersen (University of Copenhagen). Submission deadline: 1 March 2025.
Biologists @ 100 - join us in Liverpool in March 2025
We are excited to invite you to a unique scientific conference, celebrating the 100-year anniversary of The Company of Biologists, and bringing together our different communities. The conference will incorporate the Spring Meetings of the BSCB and the BSDB, the JEB Symposium Sensory Perception in a Changing World and a DMM programme on antimicrobial resistance. Find out more and register your interest to join us in March 2025 in Liverpool, UK.
Principles and regulation of mechanosensing
Mechanics play a fundamental role in cell physiology and represent physical mechanisms which cells use to influence function from the molecular to tissue scale. In this Review, Stefano Sala and colleagues clearly define mechanosensing and mechanotransduction, illustrate various mechanosensing mechanisms and discuss methods that cells use to regulate these processes.
JCS-FocalPlane Training Grants
Early-career researchers - working in an area covered by JCS - who would like to attend a microscopy training course, please apply. Deadline dates for 2024 applications: 7 September (decision by week commencing 8 October 2024); 22 November (decision by week commencing 16 December).
Apply to become a reporter at the Biologists @ 100 conference
Are you keen to get more science communication experience? Is your research related to developmental and stem cell biology or microscopy? The Node and FocalPlane are looking for one reporter each to attend and report from the Biologists @ 100 conference, happening on 24-27 March 2025 in Liverpool, UK. Apply by 29 November 2024.