Mycotoxin profile 4 min readUpdated February 1, 2026

Gliotoxin

Gliotoxin is a mycotoxin produced by Aspergillus fumigatus and some other molds. It is studied mainly in the biology of invasive fungal infection rather than as an indoor-air exposure.

Reviewed by the MoldDetox.ai clinical education team

At a glance

Made by
Aspergillus fumigatus and others
Studied for
Immune-modulating effects in infection
Main context
Invasive infection biology, not air
Indoor claims
Limited evidence; interpret cautiously

The short answer

Gliotoxin is a mycotoxin produced by Aspergillus fumigatus and certain other molds. It is studied primarily for its immune-modulating role during invasive Aspergillus infection in vulnerable patients, not as a typical indoor-air exposure. Claims that airborne gliotoxin causes illness in healthy occupants are not well established.

What is Gliotoxin?

A mycotoxin produced by Aspergillus fumigatus and others, studied mainly for its immune-modulating effects during invasive fungal infection.

Quick summary

  • Produced by Aspergillus fumigatus and others.
  • Studied in the context of invasive infection.
  • Not primarily an indoor-air exposure topic.
  • Indoor-illness claims need caution.

This information is educational and does not diagnose or treat any condition. It is not for emergencies. If you have trouble breathing, chest pain, fainting or other severe symptoms, call your local emergency number right away.

What it is

Gliotoxin belongs to a class of compounds that can modulate immune-cell function. Research interest centers on the role it may play when Aspergillus fumigatus causes invasive infection in people with weakened immune systems.

Health context

Because gliotoxin is studied mostly in infection biology, extrapolating from that to claims about airborne exposure harming healthy building occupants is not well supported. As always, symptoms should be evaluated clinically rather than attributed to a compound based on a mold name.

Key point: Gliotoxin is largely an infection-biology topic, not a validated indoor-air exposure diagnosis.

Key takeaways

  • Gliotoxin is produced by Aspergillus fumigatus and others.
  • It is studied mainly in invasive-infection biology.
  • Airborne-exposure illness claims are not well established.

Frequently asked questions

Is gliotoxin a common indoor-air hazard?

It is studied mainly in the context of invasive Aspergillus infection in vulnerable patients, not as a typical indoor-air exposure. Claims about airborne gliotoxin harming healthy occupants are not well established.

References & further reading

This article is for general education only and does not diagnose, treat or replace care from your own licensed clinician. MoldDetox.ai provides physician-supervised, educational health services. It does not provide emergency care. Testing and recommendations support — but do not replace — evaluation by your own licensed clinician.

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