228 results found
    1. Epidemiology and Global Health
    2. Microbiology and Infectious Disease

    Local emergence in Amazonia of Plasmodium falciparum k13 C580Y mutants associated with in vitro artemisinin resistance

    Luana C Mathieu et al.
    The de novo selection of a mutation responsible for Plasmodium falciparum in vitro artemisinin resistance is confirmed in Guyana, making artemisinin combination therapies vulnerable to complete resistance in this region.
    1. Cancer Biology
    2. Cell Biology

    GPCR signaling inhibits mTORC1 via PKA phosphorylation of Raptor

    Jenna L Jewell et al.
    Protein kinase A (PKA) phosphorylates Raptor and inhibits mammalian target of rapamycin complex 1 (mTORC1) activity.
    1. Cancer Biology

    Estrogen receptor coregulator binding modulators (ERXs) effectively target estrogen receptor positive human breast cancers

    Ganesh V Raj et al.
    A novel first-in-class small molecule (ERX-11) that interacts with and disrupts the interactome of the estrogen receptor (ER), blocks the growth of ER-positive breast cancers, including those that are resistant to currently approved hormonal agents.
    1. Biochemistry and Chemical Biology
    2. Microbiology and Infectious Disease

    Fucosylation and protein glycosylation create functional receptors for cholera toxin

    Amberlyn M Wands et al.
    Cholera intoxication of human colonic epithelial cells is dependent on recognition of protein glycosylation and fucosylation, not exclusively on ganglioside recognition as proposed previously.
    1. Cell Biology

    Nur77 prevents excessive osteoclastogenesis by inducing ubiquitin ligase Cbl-b to mediate NFATc1 self-limitation

    Xiaoxiao Li et al.
    Orphan nuclear receptor Nur77 protects bone by enabling a timely termination of osteoclast differentiation.
    1. Cell Biology
    2. Stem Cells and Regenerative Medicine

    Precise let-7 expression levels balance organ regeneration against tumor suppression

    Linwei Wu et al.
    Mouse genetic studies reveal that let-7 performs potent tumor suppressive roles, but at the expense of regeneration and tissue homeostasis in the liver, findings with unanticipated therapeutic implications.
    1. Cancer Biology

    Macrophage PPARγ inhibits Gpr132 to mediate the anti-tumor effects of rosiglitazone

    Wing Yin Cheng et al.
    The PPARγ protein acts in macrophages to inhibit breast cancer progression and mediate the anti-tumor effects of rosiglitazone by suppressing Gpr132 – a pro-tumor and pro-inflammatory factor in macrophages.
    1. Chromosomes and Gene Expression

    The starvation hormone, fibroblast growth factor-21, extends lifespan in mice

    Yuan Zhang et al.
    Transgenic mice with high levels of FGF21 live for longer than wild-type mice and do so without reducing food intake.
    1. Ecology
    2. Evolutionary Biology

    Sex-specific effects of cooperative breeding and colonial nesting on prosociality in corvids

    Lisa Horn et al.
    A systematic experimental comparison of prosocial behavior in eight corvid species reveals sex-specific effects of cooperative breeding and colonial nesting, thereby adding important new insights regarding the evolution of prosociality.
    1. Ecology

    A fitness trade-off between seasons causes multigenerational cycles in phenotype and population size

    Gustavo S Betini et al.
    Seasonal variation in resources causes opposing episodes of selection on body size, which interact with density dependence to influence population dynamics.

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