Issues
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Cover image
Cover Image
Cover: Fluorescence image of a primary hippocampal neuron (21 days in vitro) overproducing aggregation-prone (and disease-linked) Myc–TauP301L (green; stained for Myc) and mCherry (blue). The cells are also stained for ankyrin-G (magenta), which is a marker of the axon initial segment – the site of action potential initiation. See article by H. I. Needs et al. (jcs260993).
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RESEARCH HIGHLIGHTS
CELL SCIENTISTS TO WATCH
ESSAY
CELL SCIENCE AT A GLANCE
Membrane insertases at a glance
Summary: An overview of the different insertases and translocases that integrate proteins into cellular membranes.
REVIEWS
How host ER membrane chaperones and morphogenic proteins support virus infection
Summary: We review recent advances revealing how diverse viruses exploit host endoplasmic reticulum membrane chaperones and morphogenic machinery to cause infection.
Delayed abscission in animal cells – from development to defects
Summary: At the end of cell division, cells can delay final separation and instead remain connected. Here, we discuss how and why this occurs in normal development and disease.
RESEARCH ARTICLES
The inner mitochondrial membrane fission protein MTP18 serves as a mitophagy receptor to prevent apoptosis in oral cancer
Summary: MTP18 interacts with LC3 to activate mitophagy through Parkin-dependent outer mitochondrial membrane rupture to eliminate dysfunctional mitochondria and protect oral cancer cells.
Elimination of aberrantly specified cell clones is independent of interfacial Myosin II accumulation
Summary: Myosin II accumulation along the boundary between differently fated cells is not necessary to drive elimination and sorting of harmful cells in Drosophila larval wing discs.
A germline-specific role for unconventional components of the γ-tubulin complex in Caenorhabditis elegans
Highlighted Article: GTAP-1 and GTAP-2, two unconventional components of the γ-tubulin complex in C. elegans, contribute to targeting of the γ-tubulin complex to embryonic centrosomes and germ cell membranes in adults.
Aggregation-prone Tau impairs mitochondrial import, which affects organelle morphology and neuronal complexity
Summary: An aggregation-prone variant of Tau affects mitochondrial structure, correlates with reduced neuronal complexity, and invokes a rescue mechanism involving intercellular mitochondrial transport.
Analysis of the function of ADAM17 in iRhom2 curly-bare and tylosis with esophageal cancer mutant mice
Summary: iRhom2 and ADAM17 control EGF receptor signaling. Gain-of-function mutations in the cytoplasmic domain of iRhom2 affect the function of ADAM17 in cells and during mouse development.
Migration speed of captured breast cancer subpopulations correlates with metastatic fitness
Summary: Single cells captured from a highly heterogeneous triple-negative breast cancer cell population exhibit higher migration speed and focal adhesion dynamics, which are retained by their progeny as a result of a motility-related transcriptomic profile.
Ca2+ and cAMP open differentially dilating synaptic fusion pores
Summary: Independent triggers of release (Ca2+ and cAMP) induce different levels of fusion pore dilation to vary the composition of proteins released from synaptic dense-core vesicles.
Different tether proteins of the same membrane contact site affect the localization and mobility of each other
Highlighted Article: Membrane contact sites established by tethering proteins allow communication among organelles. Tethering proteins can influence the recruitment and mobility of other tethers of the same interface.
Quaking regulates circular RNA production in cardiomyocytes
Summary: A genetic loss-of-function study in mice reveals that the splicing factor Quaking (QKI) is a crucial regulator of circular RNA formation in the heart.
The oxoglutarate dehydrogenase complex is involved in myofibril growth and Z-disc assembly in Drosophila
Summary: Myofibrils in muscles are very regular structures. We show that the scaffolding protein Zasp52 recruits the oxoglutarate dehydrogenase complex to coordinate myofibril growth and maintain their regularity.
FIRST PERSON
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).