Issues
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Cover image
Cover Image
Cover: Cancer-associated fibroblasts (CAFs) give aggressive breast cancer cells a migratory boost by transferring mitochondria via tunnelling nanotubes. Adding metformin to inhibit tunnelling nanotube formation lowered transfer of CAF mitochondria into MDA-MB-231 cells. As a result, metformin treatment significantly reduced the 3D migration of breast cancer cells away from breast cancer–CAF co-culture spheroids, with no reduction seen in treated breast cancer-only or CAF-only spheroids. See article by K. F. Goliwas et al. (jcs260419).
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RESEARCH HIGHLIGHTS
CELL SCIENCE AT A GLANCE
NATs at a glance
Summary: Most proteins are acetylated at the N terminus. Here, we discuss how N-terminal acetyl groups influence protein functions and cellular processes important for human health.
REVIEW
A minimal cell model for lamellipodia-based cellular dynamics and migration
Summary: We review theoretical works, demonstrating that curved membrane-bound protein complexes that recruit the protrusive forces of the cytoskeleton self-organize the cytoskeleton and the membrane to form lamellipodia.
RESEARCH ARTICLES
Mitochondrial transfer from cancer-associated fibroblasts increases migration in aggressive breast cancer
Highlighted Article: Cancer-associated fibroblasts impart a migratory advantage onto already highly invasive breast cancer cell spheroids owing, in part, to mitochondrial transfer via tunneling nanotubes and the associated bioenergetic rewiring.
A phosphatidylinositol phosphate kinase inhibits Ras activation and regulates chemorepulsion in Dictyostelium discoideum
Highlighted Article: This study expands upon the role of Dictyostelium PIPkinA, furthering our understanding of the underlying mechanism of chemorepulsion and informing development of therapeutics for acute respiratory distress syndrome.
Natural antisense transcription of presenilin in sea urchin reveals a possible role for natural antisense transcription in the general control of gene expression during development
Summary: PSEN, Endo16, Wnt5, Hnf6 and Gsc are transcribed in both the sense and antisense directions in the sea urchin. A general control of the sense-antisense transcription could be crucial for correct embryonic development.
Src- and Abl-family kinases activate spleen tyrosine kinase to maximize phagocytosis and Leishmania infection
Summary: Activation of spleen tyrosine kinase by Src- and Abl-family kinases is required for maximal Leishmania uptake by macrophages and disease in a mouse model of cutaneous leishmaniasis.
Art2 mediates selective endocytosis of methionine transporters during adaptation to sphingolipid depletion
Summary: Sphingolipid depletion triggers plasma membrane remodeling by altering endocytosis of amino acid transporters.
The lipid transfer proteins Nir2 and Nir3 sustain phosphoinositide signaling and actin dynamics during phagocytosis
Highlighted Article: The Nir2 and Nir3 lipid transfer proteins maintain phosphoinositide signaling and actin dynamics, supporting effective phagocytosis.
The phosphatase Glc7 controls the eisosomal response to starvation via post-translational modification of Pil1
Summary: Glc7-mediated dephosphorylation of the yeast BAR domain protein Pil1 modulates plasma membrane subdomains to promote transporter retention and recovery potential.
Translocation of cytosolic human Cdc73 to stress granules plays a role in arsenic stress-induced stabilization of p53 mRNA
Summary: When exposed to harmful environmental conditions, cells trigger stress granule formation to reprioritize stress responsive genes (p53 mRNA) by sequestering its negative regulator hCdc73.
Phosphorylation of Rab29 at Ser185 regulates its localization and role in the lysosomal stress response in concert with LRRK2
Summary: Rab29 phosphorylation at Ser185 occurs under lysosomal stress and is mediated by PKCα and PKCδ; this phosphorylation regulates lysosome morphology and Rab29 localization to lysosomes together with LRRK2.
The ototoxic drug cisplatin localises to stress granules altering their dynamics and composition
Summary: Cisplatin causes persistent and aberrant stress granule formation which might contribute to its ototoxicity, a common side effect of chemotherapy treatment for cancer.
FIRST PERSON
Interviews with Biologists @ 100 conference speakers

Explore our interviews with keynote speakers from the Biologists @ 100 conference, hosted to celebrate our publisher’s 100th anniversary, where we discuss climate change and biodiversity with Hans-Otto Pörtner and Jane Francis, health and disease with Charles Swanton and Sadaf Farooqi, and emerging technologies with Manu Prakash and Jennifer Lippincott-Schwartz.
Introducing our new Associate Editors

In this Editorial, JCS Editor-in-Chief Michael Way welcomes five new Associate Editors to the JCS team. These Associate Editors will expand our support for the wider cell biology community and handle articles in immune cell biology, proteostasis, imaging and image analysis, plant cell biology, and stem cell biology and modelling.
The spatial choreography of mRNA biosynthesis

In their Review, André Ventura-Gomes and Maria Carmo-Fonseca detail the latest research progress and technological advancements that are helping to unlock how nuclear organisation underpins control of gene transcription and pre-mRNA splicing.
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 2025 applications: 6 June 2025 (decision by week commencing 28 July 2025) and 5 September 2025 (decision by week commencing 20 October 2025).
The emerging roles of the endoplasmic reticulum in mechanosensing and mechanotransduction

In their Review, Jonathan Townson and Cinzia Progida highlight recently emerging evidence for a role of the endoplasmic reticulum in enabling a cell to sense and respond to changes in the extracellular mechanical environment.