Cell Biology
Oct4 mediates Müller glia reprogramming and cell cycle exit during retina regeneration in zebrafishThe rapid induction of pluripotency-inducing factor Oct4 in the injured retina necessitates the de novo induction of stem cells and their subsequent cell cycle exit.
Mechanistic insights into the protective roles of polyphosphate against amyloid cytotoxicityThis study provides novel insights into the mechanisms by which presence of polyP alters the formation, structural properties, and cytotoxic effects of α-synuclein fibers.
The huntingtin inclusion is a dynamic phase-separated compartmentWhen expressed in yeast, mutant Htt-GFP forms an inclusion that is mobile, gel-like, and releases material; evidence suggests that it grows through collision and coalescence with small aggregates.
Pleiotropic requirements for human TDP-43 in the regulation of cell and organelle homeostasisComprehensive analysis of human TDP-43 knockout cells revealed that TDP-43 regulates hundreds of transcripts and is critical for maintaining the homeostasis of multiple subcellular organelles.
Mutagenesis of the ADAM17-phosphatidylserine–binding motif leads to embryonic lethality in miceMutation of three cationic amino acids previously identified as an extracellular phosphatidylserine-binding motif abrogates ADAM17 sheddase function and causes early embryonic death in mice.
Targeting plasma membrane phosphatidylserine content to inhibit oncogenic KRAS functionKRAS-dependent cancer cell growth is inhibited by disrupting phosphatidylserine transport to the plasma membrane by genetic knockdown of lipid exchangers ORP5 and ORP8 or by inhibition of PI4KIIIα.
A molecule inducing androgen receptor degradation and selectively targeting prostate cancer cellsA new molecule induces AR sumoylation and degradation resulting in selective growth inhibition in AR-dependent prostate cancer cells, but its activity is blunted by interference with proteasomes.
GRP78 regulates CD44v membrane homeostasis and cell spreading in tamoxifen-resistant breast cancerEndoplasmic reticulum chaperone protein GRP78 interacts with CD44v and regulates F-actin integrity, cell adhesion, and cell spreading in breast cancer cells. Targeting cell surface GRP78 by antibodies can reduce CD44v expression.
Kinesin-8B controls basal body function and flagellum formation and is key to malaria transmissionThis comprehensive study describes the key role and real-time dynamics of Plasmodium kinesin-8B in microtubule-based basal body and axoneme assembly during flagellum (male gamete) formation and parasite transmission.
Vinculin is critical for the robustness of the epithelial cell sheet paracellular barrier for ionsVinculin in the apical junctional complex maintains the paracellular barrier function specifically for ions, but not for large solutes, by buffering mechanical fluctuations.