The Claim

Cryo-electron microscopy has shown that stimulating and blocking TSHR autoantibodies bind to distinct regions of the receptor's extracellular domain, with stimulating antibodies stabilizing the receptor in an active conformation and blocking antibodies inhibiting ligand binding without altering basal receptor activity.

Source: Autoantibodies to the TSH Receptor—from discovery to understanding the mechanisms of action and to new therapeutics

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

Cryo-electron microscopy images show that two types of antibodies targeting the TSH receptor attach to different parts of the receptor: one type holds it in an active state, and the other type blocks hormone binding without changing the receptor's baseline activity.

See the scientific wording

Cryo-electron microscopy has revealed that stimulating and blocking TSHR autoantibodies bind to distinct regions of the receptor’s extracellular domain, with stimulating antibodies locking the receptor in an active conformation and blocking antibodies preventing ligand access without altering basal activity.

Why this might work

Some antibodies attach to one part of the thyroid hormone receptor and force it into a permanently switched-on shape, causing it to send constant signals for hormone production. Other antibodies attach to a different part and physically block the natural hormone from reaching the receptor, stopping it from turning on — but they do not change the receptor’s natural quiet state.

Verified mechanismbased on 1 study

What the research says

1 study

  1. Study: Autoantibodies to the TSH Receptor—from discovery to understanding the mechanisms of action and to new therapeutics

    High-tech pictures taken with a super microscope show that some antibodies stick to the thyroid hormone receptor in a way that turns it on forever, while others stick to a different spot and just block other molecules from getting in—without turning the receptor on or off themselves.

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

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