Journal of Cell Biology (JCB)

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Journal of Cell Biology (JCB) publishes advances in any area of basic cell biology as well as applied cellular advances in fields such as immunology, neurobiology, metabolism, microbiology, developmental biology, and plant biology. Est. 1955 Read the newest articles at https://rupress.org/JCB

Our September Issue is out! Image shows spinning disk confocal micrographs of an early C. elegans embryo expressing mScarlet-I labeled Plekstrin homology domain to visualize cell membranes. The two endoderm precursor cells are pseudocolored (yellow) and are shrinking their apical surfaces, resulting in internalization of these cells into the embryo over time.

From a study by Zhang et al. (https://doi.org/10.1083/jcb.202302102).

Read JCB’s September Issue: https://rupress.org/jcb/issue/222/9

Architecture of the cortical actomyosin network driving apical constriction in C. elegans

Zhang, Medwig-Kinney, and Goldstein show through live-cell imaging of endogenously tagged proteins that the medioapical actomyosin network driving apical constr

Rockefeller University Press
Our August cover shows the structure of the human ER membrane protein complex (EMC) embedded in a lipid bilayer. From a study by Pleiner, Hazu, Tomaleri et al (https://doi.org/10.1083/jcb.202212007) characterizing a novel selectivity filter in the EMC that protects the integrity of the ER proteome by enforcing the fidelity of membrane protein sorting between organelles and substrate folding at the ER.
Image by Larissa Ulisko.
Read JCB’s August Issue: https://rupress.org/jcb/issue/222/8
A selectivity filter in the ER membrane protein complex limits protein misinsertion at the ER

Pleiner, Hazu, Pinton Tomaleri et al. identify a selectivity filter in the ER membrane protein complex (EMC) and show that the EMC protects the integrity of the

Rockefeller University Press

Our July cover shows a maximum projection of GCaMP6s Ca2+-sensor signal from a 30-min recording of the epidermal basal stem cell layer in a live mouse. The color scale indicates GCaMP6s signal across time, showing a diversity of spatiotemporal signaling patterns. Local Ca2+ signaling is organized across the tissue in a global manner and is regulated by cell cycle and connexin 43.

From Moore, Bhaskar, Gao and colleagues (https://bit.ly/3pvKxNR).

Read JCB’s July issue: https://rupress.org/jcb/issue/222/7

Cell cycle controls long-range calcium signaling in the regenerating epidermis | Journal of Cell Biology | Rockefeller University Press

Moore, Bhaskar, Gao, et al. combine live imaging of the mouse epidermis and machine learning to study the role and regulation of calcium signaling within the st

Our June cover shows 4 cases of unilateral distribution of Cadm3 fused w/ GFP in WT donor retinal progenitor cells labeled w/ H2B-RFP in the p15+ zebrafish retina at 24 h post fertilization (hpf). Individual cases were imaged separately using an inverted laser-scanning confocal microscope and assembled. The retina structure on the background came from the 24-hpf Tg[zFucci] transgenic line injected with p15 mRNA. From Li et al. https://doi.org/10.1083/jcb.202204098

JCB’s June Issue: https://rupress.org/jcb/issue/222/6

Homophilic interaction of cell adhesion molecule 3 coordinates retina neuroepithelial cell proliferation

The study reveals the homophilic interaction of cell adhesion molecule 3 as an intercellular mechanism underlying the overproliferation of “winner” cells in p15

Rockefeller University Press

Our May cover shows scanning electron microscopy micrograph of the specific adhesion between an HIV-1–infected T lymphocyte (colored in green) and a macrophage (colored in gray) before fusion of the two cells, leading to a very efficient macrophage infection by HIV-1.

From Mascarau et al. (https://doi.org/10.1083/jcb.202205103)

Read JCB’s May Issue: https://rupress.org/jcb/issue/222/5

Productive HIV-1 infection of tissue macrophages by fusion with infected CD4+ T cells | Journal of Cell Biology | Rockefeller University Press

Mascarau et al. demonstrate the relevance of HIV-1 infection of tissue-resident macrophages by fusion with infected CD4+ T cells and show that this process is m

Our April cover shows wide-field image of a node of Ranvier in a myelinated axon stained for ADAM23 (green), βIV Spectrin (red; the node) and CASPR (gray; the paranode). ADAM23 is present in the juxtaparanodal axonal domain and engages with its ligands LGI3 and LGI2 to direct accumulation and stability of Kv1 channel complexes in the juxtaparanode to regulate the refractory period of the myelinated axon.
From Kozar-Gillan et al. https://doi.org/10.1083/jcb.202211031
JCB’s April Issue: https://rupress.org/jcb/issue/222/4
LGI3/2–ADAM23 interactions cluster Kv1 channels in myelinated axons to regulate refractory period | Journal of Cell Biology | Rockefeller University Press

Kozar-Gillan and colleagues reveal a novel molecular pathway in node of Ranvier formation by demonstrating that LGI3/2–ADAM23 interactions cluster and stabilize

Our March cover shows a maximum projection of Ashyba gossypii expressing the septin Cdc11a-GFP where color corresponds to the Z-height. Various septin structures can be observed in A. gosspyii: (1) interregion rings, which are bundled septin filaments that organize as bars; (2) basal collars that localize to lateral branches; and (3) thin filaments that run across hyphae.

From Cannon et al. (https://bit.ly/41xTh4n)

Read JCB’s March Issue: https://rupress.org/jcb/issue/222/3

gene duplication of a septin reveals a developmentally regulated filament length control mechanism

Cannon et al. identify a gene duplication event of a septin gene showing that two highly similar but distinct septin proteins generate novel biophysical feature

Rockefeller University Press

Chii Jou Chan: The positives of being under "pressure"

Chii Jou (Joe) Chan (National University of Singapore) investigates how tissue mechanics and fluid pressure regulate mammalian development, with a special focus on folliculogenesis and oocyte quality control. For our #PeopleAndIdeas, we chatted with Joe about his scientific journey. https://rupress.org/jcb/article/222/2/e202211075/213830/Chii-Jou-Chan-The-positives-of-being-under?utm_source=mastodon

Chii Jou Chan: The positives of being under "pressure" | Journal of Cell Biology | Rockefeller University Press

Chii Jou Chan investigates how tissue mechanics and fluid pressure regulate mammalian development, with a special focus on folliculogenesis and oocyte quality c

Our February cover shows a z-stack projection of spinning disk confocal images showing a C. elegans spermatheca filled with an oocyte. Actomyosin stress fibers (cyan) are labelled with GFP::ACT-1 and the RhoGEF RHGF-1 (magenta) is tagged with tagRFP.
From a study by Kela et al. (https://rupress.org/jcb/article/222/2/e202203105/213784/Tension-dependent-RHGF-1-recruitment-to-stress?utm_source=mastodon).
Read JCB’s February Issue: https://rupress.org/jcb/issue/222/?utm_source=mastodon
Tension-dependent RHGF-1 recruitment to stress fibers drives robust spermathecal tissue contraction

Avivi Kela et al. discovered a novel mechanotransduction pathway in the C. elegans spermatheca involving tension-dependent localization of a RhoGEF and a positi

Rockefeller University Press
JCB is proud to serve as a home for exceptional advances in methods and resources that serve the full breadth of cell biology research. With our Tools format, authors convey their most innovative feats of imaging, tissue engineering, high-throughput screens, software, and more. Now for the first time, we have gathered a collection of exceptional Tools articles from recent issues. Read the collection: https://rupress.org/jcb/collection/21632/Tools-Collection-2023?utm_source=mastodon