Proteasome inhibition

Proteasome inhibition has been studied in 2 papers since 2016: none in people yet, 2 in cells. No study of it in people or animals has been published yet. The newest paper, Sep 2, 2022: “Adult fibroblasts use aggresomes only in distinct cell-states”.

Intervention

2 papers study it3 findingsUpdated

None of its findings points the other way.

  • 2 independent labs in 2 countries
  • Funders: National Institute of Neurological Disorders and Stroke and others
  • Cells2

What did studies of Proteasome inhibition find?

3

Studies of Proteasome inhibition measured 3 outcomes; the most studied are aggresome formation (1 study), glutathione redox balance (1) and cytokine secretion (1).

Aggresome formation

upin mouse cells1

1 study
  1. Proteasome inhibition induces aggresome formation in mouse cells.

    “quiescent and immortalized fibroblasts formed aggresomes, whereas proliferating and senescent fibroblasts did not.”

    Cellsin quiescent and immortalized adult mouse dermal fibroblasts

    Adult fibroblasts use aggresomes only in distinct cell-states

    Scientific reports

Glutathione redox balance

no changein mouse cells1

1 study
  1. Proteasome inhibition has no effect on glutathione redox balance in mouse cells.

    “Variations in glutathione-redox balance were also observed in SIPS and RS, and not in PIIPS.”

    Cellsproteasome inhibition-induced premature senescenceprimary lung fibroblasts

    Senescence associated secretory phenotype profile from primary lung mice fibroblasts depends on the senescence induction stimuli

    Age (Dordrecht, Netherlands)

More on Glutathione redox balance

Cytokine secretion

upin mouse cells1

1 study
  1. Proteasome inhibition increases cytokine secretion in mouse cells (13 of 62 analyzed cytokines increased).

    “while SIPS and RS showed an increase in the secretion of most cytokines, and in PIIPS only 13 were incremented.”

    Cellsproteasome inhibition-induced premature senescenceprimary lung fibroblasts

    Senescence associated secretory phenotype profile from primary lung mice fibroblasts depends on the senescence induction stimuli

    Age (Dordrecht, Netherlands)

More on Cytokine secretion

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