65 results found
    1. Evolutionary Biology

    The last common ancestor of animals lacked the HIF pathway and respired in low-oxygen environments

    Daniel B Mills et al.
    Sponges and ctenophores lack hypoxia-inducible factors, suggesting that the metazoan last common ancestor could have lived aerobically under severe hypoxia and did not need to regulate its transcription in response to oxygen availability.
    1. Evolutionary Biology

    Evolution: Oxygen and early animals

    Kalle T Rytkönen
    The biology of sponges provides clues about how early animals may have dealt with low levels of oxygen.
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    1. Cell Biology
    2. Developmental Biology and Stem Cells

    In vivo genetic dissection of tumor growth and the Warburg effect

    Cheng-Wei Wang et al.
    A Drosophila tumor model reveals how the activation of an oncogenic pathway can lead to both tumor growth and a reprogramming of metabolism known as the Warberg effect.
    1. Structural Biology and Molecular Biophysics

    NPAS1-ARNT and NPAS3-ARNT crystal structures implicate the bHLH-PAS family as multi-ligand binding transcription factors

    Dalei Wu et al.
    Detailed structural analysis of NPAS1-ARNT and NPAS3-ARNT complexes, and further comparisons with other bHLH-PAS protein structures, show that this family of mammalian transcription factors have distinct ligand-binding pockets within their molecular architectures.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    The vacuolar-ATPase complex and assembly factors, TMEM199 and CCDC115, control HIF1α prolyl hydroxylation by regulating cellular iron levels

    Anna L Miles et al.
    An unbiased genome-wide human forward genetic screen identifies the vacuolar ATPase complex and assembly factors as regulators of HIF stability through their actions on intracellular iron metabolism.
    1. Cell Biology
    2. Neuroscience

    Hypoxia: Adapt or avoid

    Ganesh K Kumar
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    1. Human Biology and Medicine

    Cardiovascular adaptation to hypoxia and the role of peripheral resistance

    Andrew S Cowburn et al.
    Radiotelemetric and genetic studies of peripheral tissue response show that a peripheral tissue can dynamically alter cardiovascular adaptation to changes in environmental oxygen.
    1. Cancer Biology
    2. Human Biology and Medicine

    BRAFV600E cooperates with CDX2 inactivation to promote serrated colorectal tumorigenesis

    Naoya Sakamoto et al.
    Genetic analyses reveal how CDX2 and BRAF defects seen in serrated colorectal cancer (CRCs), a poor prognosis CRC subset, cooperate in tumorigenesis in humans and in a mouse cancer model.
    1. Physics of Living Systems

    Aerotaxis in the closest relatives of animals

    Julius B Kirkegaard et al.
    The colony-forming choanoflagellate Salpingoeca rosetta is capable of moving towards oxygen using logarithmic sensing of oxygen concentrations and a navigation strategy that involves random movements.
    1. Chromosomes and Gene Expression
    2. Human Biology and Medicine

    Trisomy 21 consistently activates the interferon response

    Kelly D Sullivan et al.
    Hyperactive interferon signaling is a hallmark of trisomy 21 and may contribute to many of the comorbidities associated with Down syndrome.

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