511 results found
    1. Cancer Biology

    Arid1a restrains Kras-dependent changes in acinar cell identity

    Geulah Livshits et al.
    Arid1a loss in the pancreas enables an irreversible reprogramming of cell fate that is dependent on both cellular and genetic context.
    1. Cancer Biology

    Epithelial-Myeloid cell crosstalk regulates acinar cell plasticity and pancreatic remodeling in mice

    Yaqing Zhang et al.
    In the pancreas, reciprocal interactions between epithelial cells and myeloid cells determine the balance between tissue repair and carcinogenesis by regulating acinar cell plasticity through differential activation of EGFR/MAPK signaling.
    1. Cancer Biology

    Visualization of stem cell activity in pancreatic cancer expansion by direct lineage tracing with live imaging

    Takahisa Maruno et al.
    Genetic lineage tracing approach combined with live imaging visualized the functional stem cell activity of Doublecortin-like kinase 1+ cells within pancreatic cancer in vivo.
    1. Structural Biology and Molecular Biophysics

    Germline VRC01 antibody recognition of a modified clade C HIV-1 envelope trimer and a glycosylated HIV-1 gp120 core

    Andrew J Borst et al.
    An integrative structural and biophysical workflow indicates engagement of VRC01 germline antibodies can occur with a gp120 426c core construct containing all wild-type N-linked glycosylation sites, including the Asn276 glycan.
    1. Structural Biology and Molecular Biophysics

    Atomic structure of the 26S proteasome lid reveals the mechanism of deubiquitinase inhibition

    Corey M Dambacher et al.
    Within the isolated lid sub-complex of the proteasome, a finely tuned network of interactions maintains the deubiquitinase in an inhibited conformation; dramatic rearrangements of the lid subunits upon incorporation into the holoenzyme lead to the deubiquitinase’s activation.
    1. Biochemistry and Chemical Biology

    Specific lid-base contacts in the 26s proteasome control the conformational switching required for substrate degradation

    Eric R Greene et al.
    The 26S proteasome lid subcomplex acts as an external scaffold whose interactions with the ATPase motor stabilize the substrate-engagement-competent state, and control conformational changes upon engagement for subsequent degradation steps.
    1. Plant Biology

    ATP sensing in living plant cells reveals tissue gradients and stress dynamics of energy physiology

    Valentina De Col et al.
    The monitoring of ATP dynamics in living plants using fluorescent protein biosensor provides evidence for the complex relationship between cellular energy status and growth.
    1. Computational and Systems Biology
    2. Developmental Biology

    A human ESC-based screen identifies a role for the translated lncRNA LINC00261 in pancreatic endocrine differentiation

    Bjoern Gaertner et al.
    Ribosome profiling and loss-of-function during human ESC pancreatic differentiation reveal abundant lncRNA translation and an essential role for translated LINC00261 in beta cell differentiation, likely through a trans-regulatory, microprotein-independent mechanism.
    1. Developmental Biology
    2. Cancer Biology

    The acinar differentiation determinant PTF1A inhibits initiation of pancreatic ductal adenocarcinoma

    Nathan M Krah et al.
    By regulating acinar cell differentiation, the transcription factor PTF1A acts as a novel class of tumor suppressor in pancreatic cancer.
    1. Cancer Biology
    2. Cell Biology

    CXCL10/CXCR3 signaling contributes to an inflammatory microenvironment and its blockade enhances progression of murine pancreatic precancerous lesions

    Veethika Pandey et al.
    Blockage of CXCL10/CXCR3 signaling between murine pancreatic precancerous lesion cells and inflammatory macrophages generates a tumor-promoting microenvironment.

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