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    1. Developmental Biology
    2. Plant Biology

    Live tracking of moving samples in confocal microscopy for vertically grown roots

    Daniel von Wangenheim et al.
    A set of tools to image and track growing plant roots in optimized growing conditions within a vertical stage confocal microscope will open up new possibilities in research of root development.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Single-molecule tracking in live cells reveals distinct target-search strategies of transcription factors in the nucleus

    Ignacio Izeddin et al.
    While the transcription factor c-Myc explores the space in the nucleus in an unrestricted manner, the elongation factor P-TEFb's sampling of the nucleus is constrained to a complex domain with fractal characteristics.
    1. Neuroscience

    Sparse genetic tracing reveals regionally specific functional organization of mammalian nociceptors

    William Olson et al.
    Single-nociceptor tracing reveals a novel somatotopic organization for the mammalian pain system, and physiological recordings and peripheral optogenetic behavior assays suggest that it is a possible mechanism underlying region-specific pain sensation.
    1. Cell Biology
    2. Developmental Biology

    Nutrient restriction enhances the proliferative potential of cells lacking the tumor suppressor PTEN in mitotic tissues

    Katarzyna Nowak et al.
    Nutrient limitation elicits differential responses in cells lacking the tumor suppressor PTEN and in normal cells, resulting in hyperplastic overgrowth of PTEN mutant tissue independent of additional mutations.
    1. Structural Biology and Molecular Biophysics
    2. Chromosomes and Gene Expression

    Single-molecule tracking of the transcription cycle by sub-second RNA detection

    Zhengjian Zhang et al.
    A new technique called fastFISH enables nearly real-time and stoichiometric detection of nascent RNA and the tracking of individual stages of transcription at the level of single-molecules.
    1. Neuroscience

    A virtual burrow assay for head–fixed mice measures habituation, discrimination, exploration and avoidance without training

    Andrew JP Fink et al.
    A naturalistic assay for head-fixed mice permits observation of a diverse set of innate and learned behaviors without requiring any training.
    1. Human Biology and Medicine
    2. Neuroscience

    Selective and regulated trapping of nicotinic receptor weak base ligands and relevance to smoking cessation

    Anitha P Govind et al.
    The smoking cessation drug varenicline (Chantix) and other weak base ligands reduce a4b2-type nicotinic receptor (a4b2R) upregulation through slow intracellular release due to selective trapping in acidic vesicles that contain a4b2Rs.
    1. Neuroscience

    Reward-based training of recurrent neural networks for cognitive and value-based tasks

    H Francis Song et al.
    A two-part neural network models reward-based training and provides a unified framework in which to study diverse computations that can be compared to electrophysiological recordings from behaving animals.
    1. Stem Cells and Regenerative Medicine

    Live cell-lineage tracing and machine learning reveal patterns of organ regeneration

    Oriol Viader-Llargués et al.
    A combination of live cell tracking, cell-lineage tracing and machine learning shows that injured sensory organs repair accurately regardless of the extent of damage.
    1. Neuroscience

    Monosynaptic premotor circuit tracing reveals neural substrates for oro-motor coordination

    Edward Stanek IV et al.
    Retrograde tracing of the neural circuits that control movement of the jaw and tongue reveals how shared premotor neurons help to ensure coordinated muscle activity.