Related Experiment Videos
Passive transfer of experimental autoimmune labyrinthitis
T Ikezono1, S Tomiyama, R Pawankar
1Department of Otorhinolaryngology, Nippon Medical School, Tokyo, Japan. tikezono@nms.ac.jp
Audiology & Neuro-Otology
|July 19, 2000
Summary
Researchers developed an animal model for autoimmune labyrinthitis using inner ear antigen (IEAg). This condition, characterized by cellular infiltration and hydrops, was shown to be transferable via cell-mediated immunity.
Area of Science:
- Immunology
- Otolaryngology
- Animal Models
Background:
- Autoimmune inner ear diseases are challenging to study.
- An effective animal model is needed to understand disease mechanisms.
Purpose of the Study:
- Establish an animal model for autoimmune labyrinthitis.
- Investigate the passive transfer of experimentally induced labyrinthitis.
Main Methods:
- Used bovine inner ear antigen (IEAg) to induce autoimmunity in mice.
- Collected and transferred mononuclear cells from sensitized mice to naive recipients.
- Assessed cochlear and vestibular tissues for pathological changes.
Main Results:
- Cellular infiltration observed in the perilymphatic space of both donor and recipient mice.
- Endolymphatic hydrops detected in a significant percentage of both donor (63%) and recipient (42%) mice.
- Evidence suggests a cell-mediated immune response underlies the induced labyrinthitis.
Conclusions:
- Successfully established an animal model for autoimmune labyrinthitis.
- Demonstrated passive, cell-mediated transfer of the condition.
- The model provides a platform for studying autoimmune inner ear diseases.