The Claim

Rapamycin is an immunosuppressant agent that exerts its immunosuppressive effect by forming a pharmacologically active complex with FKBP12, which subsequently binds to and inhibits mTOR (mammalian target of rapamycin), thereby blocking T-cell progression from the G1 to S phase of the cell cycle.

Source: A treasure from a barren island: the discovery of rapamycin

What the research says

Roughly balanced

Support and challenge are close. The picture may shift as more studies come in.

Supports
1score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

How it works
1 study reviewed
In plain English

Rapamycin is a drug that calms down the immune system. It works by hooking onto a specific protein inside cells, which then locks onto and shuts down a key growth switch called mTOR, preventing immune cells called T-cells from dividing and multiplying.

See the scientific wording

Rapamycin acts as an immunosuppressant by forming a pharmacologically active complex with FKBP-12 that binds and inhibits mTOR (mammalian target of rapamycin), blocking T-cell progression from G1 to S phase of the cell cycle.

What the research says

1 study
  1. Study: A treasure from a barren island: the discovery of rapamycin

    The study is about rapamycin (same drug), and it mentions rapamycin as an immunosuppressant and talks about mTOR, which is related to the claim. However, the available abstract is too short and unclear to confirm whether it specifically tests the exact mechanism (FKBP-12 complex formation and T-cell cycle blocking) described in the claim.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.