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This Review summarizes the latest findings on heart reverse remodelling, which demonstrate that despite apparent normalization of function, the molecular changes associated with heart failure persist in the reverse-remodelled heart. This myocardial remission is distinct from true recovery, in which both function and molecular makeup are normalized. These findings have implications for developing therapies to repair the failing heart.
Analysis of global remethylation in mouse embryos at several
developmental stages identifies an epigenetic landscape that partitions extraembryonic
tissues within the embryo and resembles a frequent, global departure in genome
regulation in human cancers.
Deep penetrating nevi (DPN) are unusual melanocytic neoplasms with unknown genetic drivers. Here the authors show that majority of DPN harbor activating mutations in the β-catenin and the MAP-kinase pathways; this characteristic can help in the classification and grading of these distinctive neoplasms.
IgE is an important mediator of protective immunity as well as allergic reaction, but how high affinity IgE antibodies are produced in memory responses is not clear. Here the authors show that IgE can be generated via class-switch recombination in IgG1 memory B cells without additional somatic hypermutation.
Non-anatomical resection of colorectal liver metastases is the current preferred approach to maximize sparing of the hepatic parenchyma. A new study raises the question of whether resection in patients with KRAS-mutated colorectal liver metastases should be performed along segmental, anatomical lines to reduce the risk of local liver recurrence.
Caveolin-1 has a critical role in orchestrating the membrane organization of B cells. In its absence, signaling via the B cell antigen receptor and B cell tolerance are impaired, which results in autoimmunity.
A two-amino-acid substitution in the transcription factor RORγt disrupts its effect in establishing the transcriptional program of TH17 cells while leaving its function in the development of thymocytes and lymphoid-tissue–inducer cells largely intact.