Keep Current with the Latest in Cell Biology Research
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Peroxisome-Dependent and -independent Functions of PEX19 in Mouse Embryonic Stem Cells
[iScience] Researchers reported an unexpected role of PEX19, a chaperone and receptor for peroxisomal membrane proteins, in regulating cell cycle and cell fates of mESCs through a peroxisome-independent mechanism.
Directing GABAergic Neuronal Identity from Human iPSCs through Developmental Patterning
[Stem Cell Reports] Scientists showed that the chromatin state of the starting population constrains the neuronal identities that ASCL1 and DLX2 can specify: patterned progenitors give rise to GABAergic neurons with cortical and ganglionic eminence-associated molecular signatures, whereas naive PSCs yield neurons with mixed regional identities, including hypothalamic and thalamic signatures.
Fate Therapeutics Announces Receipt of California Institute for Regenerative Medicine (CIRM) CLIN2 Grant to Advance RECLAIM-LN
[Fate Therapeutics, Inc.] Fate Therapeutics, Inc. announced that the California Institute for Regenerative Medicine (CIRM) has awarded the Company a $15.0 million grant, through its CLIN2 program, to support the clinical development of RECLAIM-LN, the Company's Phase II, potentially registrational trial of FT819 off-the-shelf CAR T cell in patients with refractory moderate-to-severe Systemic Lupus Erythematosus (SLE) with Lupus Nephritis (LN).
Teknova and Pluristyx Announce FDA Drug Master File for the PluriFreeze™ Cryopreservation System
[Pluristyx, Inc. ] Alpha Teknova, Inc. and Pluristyx, Inc. announced that Pluristyx is completing a Type II Drug Master File for the PluriFreeze™ cryopreservation system for submission to the US FDA.
Tuning Intracellular Immunity by Nodamura Virus B2 Protein Enhances Self-Amplifying RNA Activity
[Nature Communications] Investigators showed that the cis-expression of the Nodamura virus (NoV) B2 protein markedly enhances saRNA-driven transgene expression by alleviating key cell-intrinsic antiviral effectors.
Placental Trophoblasts Exhibit Iron Dysregulation and Ferroptosis Signaling Associated with SARS-CoV-2 Restriction
[Cell Reports] Researchers showed that SARS-CoV-2 induces ferroptosis-linked iron dysregulation in the placenta as a potential attempt to limit trophoblast infection. In trophoblast cells and stem cell-derived trophoblast organoids with apical-out polarity, SARS-CoV-2 Delta infection suppresses the iron efflux transporter ferroportin and ferroptosis inhibitors.
Mitophagy in Pathogenesis and Therapeutic Implications for Infection
[Experimental & Molecular Medicine] The authors review current knowledge on the role of mitophagy in bacterial and viral infections and sepsis, focusing on the mechanisms by which pathogens evade mitophagy or influence pathogenesis through mitophagy during different types of infection.
Differential Formation of Nitrate-Responsive Mycobacterial Intracytoplasmic Membranes during Mycobacterium tuberculosisInfection
[Cell Reports] Using cryo-electron tomography, scientists showed that Mycobacterium tuberculosis, a major human pathogen, is able to form intracytoplasmic membranes outside and inside host cells in a strain-dependent manner. They characterized these mycobacterial intracytoplasmic membranes as nitrate-induced structures.
NS1-Induced PARP1 Phase Transitions Prolongs Host Transcriptional Pausing to Promote Influenza a Virus Replication
[Advanced Science] Using a CRISPR screen and proteomics, scientists identified Poly (ADP)-ribose polymerase 1 (PARP1) as a critical proviral host factor that directly binds NS1.
Type I Interferon Mitigates ZIKV-Induced Neuroinflammation and Cell Death in the Central Nervous System
[Virus Research] Researchers investigated how type I interferon signaling influences the cellular inflammatory response and immunopathology in the central nervous system during ZIKV infection.
Sarbecoviruses Suppress Innate Immunity by Recruiting PPM1A to Modulate STAT2 and ORF9b Phosphorylation
[Advanced Science] Scientists identified viral ORF9b as a conserved accessory protein across the Sarbecovirus subgenus that consistently suppresses innate immune responses by recruiting the protein phosphatase, Mg2+/Mn2+-dependent 1A (PPM1A).
Eosinophil-Driven Immunopathology Exacerbates SARS-CoV-2 Pneumonia in an OVA-Induced Airway Allergy Mouse Model
[Msphere] To investigate how allergic airway inflammation affects SARS-CoV-2-induced pneumonia, researchers used an ovalbumin-induced airway allergy mouse model and infected mice with QHmusX, a mouse-passaged SARS-CoV-2 strain that causes severe acute pneumonia.