The PI3K/Akt/PTEN/mTOR pathway: a fruitful target for inducing cell death in rheumatoid arthritis?

Charles J Malemud1

  • 1Department of Medicine, Division of Rheumatic Diseases, University Hospitals, Case Medical Center, Foley Medical Building, Room 207, 2061 Cornell Road, Cleveland, OH 44106, USA.

Insights

Targeting phosphoinositide 3-kinase (PI3K) signaling may treat autoimmune diseases like rheumatoid and psoriatic arthritis. This pathway

Area of Science:

  • Oncology
  • Immunology
  • Pharmacology

Background:

  • The phosphoinositide 3-kinase/Akt/mammalian target of rapamycin (PI3K/Akt/mTOR) pathway regulates critical cellular functions.
  • Aberrant PI3K/Akt/mTOR signaling is a hallmark of various cancers, making it a target for anticancer drug development.
  • Rheumatoid arthritis (RA) and psoriatic arthritis (PsA) are autoimmune diseases characterized by immune cell proliferation and survival.

Purpose of the Study:

  • To explore the role of PI3K signaling in immune-mediated inflammatory diseases like RA and PsA.
  • To investigate the potential of targeting PI3K signaling as a therapeutic strategy for autoimmune arthritis.

Main Methods:

  • Review of existing literature on PI3K/Akt/mTOR signaling in cancer and autoimmune diseases.
  • Analysis of the overlap in cellular processes between cancer and immune-mediated arthritis.
  • Consideration of small molecule inhibitor strategies.

Main Results:

  • PI3K signaling dysregulation in cancer shares similarities with immune cell and fibroblast abnormalities in RA and PsA.
  • Emerging evidence suggests PI3K inhibition may be effective in psoriatic arthritis.

Conclusions:

  • Targeting PI3K signaling presents a promising therapeutic avenue for immune-mediated arthritis.
  • Further research into PI3K inhibitors could lead to novel treatments for RA and PsA.

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