23 results found
    1. Computational and Systems Biology
    2. Cancer Biology

    Mitochondrial DNA copy number variation across human cancers

    Ed Reznik et al.
    Many tumors are depleted of mitochondrial DNA; this depletion is associated with changes in gene expression and with the incidence of critical somatic mutations and alterations.
    1. Stem Cells and Regenerative Medicine

    Stochastic homeostasis in human airway epithelium is achieved by neutral competition of basal cell progenitors

    Vitor H Teixeira et al.
    Cell replenishment within the airways is governed by the random division of a population of basal progenitor cells, in a process that is accelerated in smokers.
    1. Evolutionary Biology

    Adaptive evolution of nontransitive fitness in yeast

    Sean W Buskirk et al.
    A series of selective events, each improving fitness relative to an immediate predecessor, can result in organisms that are less fit compared to a distant ancestor.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Atomic structure of a mitochondrial complex I intermediate from vascular plants

    Maria Maldonado et al.
    The first atomic resolution structure of a mitochondrial respiratory complex from plants provides insight into the assembly and evolution of respiration in autotrophic eukaryotes.
    1. Cell Biology

    Elimination of paternal mitochondria in mouse embryos occurs through autophagic degradation dependent on PARKIN and MUL1

    Rebecca Rojansky et al.
    The uniparental inheritance of mammalian mitochondria results from elimination of paternal mitochondria by a mitophagic process that requires the E3 ubiquitin ligases PARKIN and MUL1.
    1. Cancer Biology
    2. Microbiology and Infectious Disease

    A single clonal lineage of transmissible cancer identified in two marine mussel species in South America and Europe

    Marisa A Yonemitsu et al.
    A transmissible cancer that arose in a marine mussel spread from a single animal to become a global pathogen affecting two other mussel species in both Europe and South America.
    1. Cancer Biology

    Horizontal transfer of whole mitochondria restores tumorigenic potential in mitochondrial DNA-deficient cancer cells

    Lan-Feng Dong et al.
    A genetic approach documents that mitochondrial DNA moves from donor cells to recipient mtDNA-depleted cells in whole mitochondria and that this restores mitochondrial respiration and the capacity of the cells to form tumours.
    1. Genetics and Genomics

    Human genetic analyses of organelles highlight the nucleus in age-related trait heritability

    Rahul Gupta et al.
    Although cellular organelles show a functional deterioration in aging, genetic loci associated with common age-associated disease instead nominate nuclear transcription factors across several age-related diseases.
    1. Evolutionary Biology
    2. Genetics and Genomics

    Multi-Level Selection: The perils of cheating

    M Florencia Camus
    Experiments on mitochondrial DNA in worms highlight that cheating does not always pay off.
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    1. Ecology

    Acknowledging selection at sub-organismal levels resolves controversy on pro-cooperation mechanisms

    Wenying Shou
    Building on previous work (Momeni et al., 2013), it is shown that recognizing the hierarchical organization of biological systems resolves the ongoing controversy on pro-cooperation mechanisms.

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