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Spies et al. report that 53BP1 nuclear bodies restrain duplication of under-replicated DNA until the late S phase, thus promoting RAD52-mediated repair of these lesions.
Nacarelli et al. show that the nicotinamide-phosphoribosyltransferase-regulated NAD+ biogenesis pathway promotes the proinflammatory senescence-associated secretory phenotype by enhancing glycolysis and mitochondrial respiration during senescence.
Liu et al. show that the adaptive branch of unfolded protein response signalling, IRE1α–XBP1, protects haematopoietic stem cells and N-Ras pre-leukaemic stem cells from endoplasmic reticulum stress-induced apoptosis and supports their self-renewal.
Lystad et al. identify distinct membrane binding regions in ATG16L1 and show that the β-isoform-specific C-terminal region is required for VPS34/ULK1/2-independent non-canonical autophagy.
Moro et al. discover an Argonaute 2 (Ago2)-dependent miRNA network that, in response to substrate stiffness, regulates genes involved in tissue mechanics, and show that Ago2 restrains stiffness and contributes to regeneration in the zebrafish fin fold.
Romani et al. identify a response to reduced actomyosin contractility involving inhibition of Lipin-1, accumulation of SREBP transcription factors at the Golgi apparatus and activation of SREBP transcription driving increased lipid synthesis.
Guo et al. identify SETDB1 and KDM4B as the methyltransferase and demethylase, respectively, for AKT. AKT methylation promotes its kinase activity and the subsequent tumorigenesis.
Wang et al. show that Akt methylation by SETDB1 is
recognized by demethylase JMJD2A, which then recruits E3 ligases to
induce K63-linked Akt ubiquitination, leading to Akt activation and
tumorigenesis.
Zhang et al. show that ALK phosphorylates SMAD4 at Tyr 95 to block its binding to DNA, representing a mutation-independent mechanism for blocking the tumour suppressor function of TGF-β in ALK-positive cancers.
Carlson et al. show that DTCs within the PVN are protected from chemotherapy; targeting interactions between DTCs and the PVN enhances chemosensitivity and prevents bone metastasis.
Performing a small-molecule screen, Liu et al. identify IRAK as a regulator of PIDDosome activity and tumour radioresistance, and demonstrate a synergistic effect of targeting IRAK1 and PIN1 in response to ionizing radiation.
Li et al. show that the epithelial–mesenchymal-transition transcription factor Snail induces claudin-11 expression and suppresses RhoA activity, thereby promoting collective migration and tumour progression in head and neck cancer.