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    1. Stem Cells and Regenerative Medicine

    Scleraxis-lineage cells are required for tendon homeostasis and their depletion induces an accelerated extracellular matrix aging phenotype

    Antonion Korcari, Anne EC Nichols ... Alayna E Loiselle
    Age-related tendon degeneration is initiated by loss of tenocytes associated with synthesis of high-turnover rate proteoglycans and glycoproteins.
    1. Developmental Biology
    2. Genetics and Genomics

    Systematic imaging reveals features and changing localization of mRNAs in Drosophila development

    Helena Jambor, Vineeth Surendranath ... Pavel Tomancak
    Genome wide analysis reveals that many transcripts are localized in cells of the ovary and that the localization status of mRNAs changes over time and in different cell types.
    1. Immunology and Inflammation

    Ketogenic diet restrains aging-induced exacerbation of coronavirus infection in mice

    Seungjin Ryu, Irina Shchukina ... Vishwa Deep Dixit
    Ketogenic diet protects against coronavirus-infected aged mice, which, like humans, are significantly more susceptible to infections, by deactivating NLRP3 inflammasome, reducing pathogenic monotypes, and expanding γδ T cells in the lung.
    1. Computational and Systems Biology

    Applying causal discovery to single-cell analyses using CausalCell

    Yujian Wen, Jielong Huang ... Hao Zhu
    Based on benchmarking various methods and analyzing multiple real scRNA-seq datasets, a computational platform/workflow and a set of tips for best practices are developed for analyzing causal interactions or relationships in single cells.
    1. Ecology
    2. Evolutionary Biology

    Seminal fluid compromises visual perception in honeybee queens reducing their survival during additional mating flights

    Joanito Liberti, Julia Görner ... Boris Baer
    After insemination, honeybee queens experience a rapid reduction in vision and flight performance, consistent with an ongoing sexual conflict over the number of mating flights that queens embark on.
    1. Chromosomes and Gene Expression

    Oncogene expression from extrachromosomal DNA is driven by copy number amplification and does not require spatial clustering in glioblastoma stem cells

    Karin Purshouse, Elias T Friman ... Wendy A Bickmore
    In glioblastoma stem cells, oncogenes on extrachromosomal DNA do not cluster at distances in keeping with coordinated transcription, with amplified gene expression driven by copy number rather increased transcriptional efficiency.
    1. Cell Biology

    Multiplexed mRNA assembly into ribonucleoprotein particles plays an operon-like role in the control of yeast cell physiology

    Rohini R Nair, Dmitry Zabezhinsky ... Jeffrey E Gerst
    Prokaryotes use polycistronic messages for coordinated translation, whereas eukaryotic cells may achieve tunable protein synthesis by packaging monocistronic mRNAs into functional multiplexes via co-transcriptional interallelic coupling and non-canonical histone-H4 functions.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Synergistic assembly of human pre-spliceosomes across introns and exons

    Joerg E Braun, Larry J Friedman ... Melissa J Moore
    Viewing the dynamic interactions of individual spliceosomal subcomplexes with single pre-messenger RNA molecules reveals how nearby flanking splice sites accelerate pre-spliceosome assembly and the splicing of multi-intron pre-mRNAs.
    1. Chromosomes and Gene Expression

    Live-cell imaging reveals enhancer-dependent Sox2 transcription in the absence of enhancer proximity

    Jeffrey M Alexander, Juan Guan ... Orion D Weiner
    Sox2 transcription is not correlated with spatial proximity of its essential regulatory enhancer in embryonic stem cells, suggesting gene transcription is not limited to periods of direct enhancer-promoter contact.
    1. Stem Cells and Regenerative Medicine

    Chemical modulation of transcriptionally enriched signaling pathways to optimize the conversion of fibroblasts into neurons

    Joseph Herdy, Simon Schafer ... Fred H Gage
    An unbiased RNAseq based strategy to identify targetable pathways and a streamlined lentiviral system provide a state of the art advance on direct fibroblast to neuron conversion.