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Published on: March 8, 2017
[Research on the immunological cause of auricular pseudocyst]
1Department of Otorhinolaryngology, First Affiliated Hospital of Guiyang Medical College, Guiyang 550004.
Insights
Auricular pseudocysts may stem from local autoimmune issues. Immunocomplexes were found in patient ear tissue, suggesting a link to autoimmune responses.
Area of Science:
- Immunology
- Otolaryngology
- Pathology
Context:
- Auricular pseudocysts are a clinical condition affecting the ear.
- The immunological underpinnings of auricular pseudocysts require further investigation.
- Understanding the role of autoimmune responses in ear conditions is crucial for patient care.
Purpose:
- To investigate the relationship between auricular pseudocysts and patient immune function.
- To analyze the presence of immunoglobulins, complement, and immunocomplexes in auricular pseudocyst fluid and tissue.
Summary:
- Immunoglobulin (IgG, IgA, IgM) and complement C3 levels were significantly lower in cyst fluid compared to serum.
- No immunocomplexes (IC), anti-nuclear antibodies (ANA), or extractable nuclear antibodies (ENA) were detected in serum or cyst fluid.
- Reactive immunocomplexes were identified in the auricular cartilaginous tissue of patients and on human embryo auricle tissue when exposed to cyst fluid, but not with patient serum or normal serum.
Impact:
- This study suggests a potential link between auricular pseudocysts and a localized autoimmune status.
- Findings may guide future diagnostic approaches and therapeutic strategies for auricular pseudocysts.
- Highlights the importance of considering local immune responses in the etiology of ear conditions.
Objective:
To elucidate the relationship between the auricular pseudocyst and the immunological function of patients.
Method:
The cyst fluid and blood sample had been detected for contents of IgG, IgA, IgM and complement C3 by radial immunodiffusion, immunocomplex (IC) contents by polyethylene glycol turbidimetry in 55 cases, anti-nuclear antibody (ANA) by immuno-fluorescent technique in 23 cases, extractable nuclear antibody (ENA) by immunotransfer technique in 24 cases. The frozen sections of cyst wall tissue of 24 cases had been detected for immunocomplex by immunoenzyme histochemistric method. The reactions were observed separately between the auricle tissue of healthy white rat, human embryo and cyst fluid, serum of patient and normal serum.
Result:
Contents of IgG, IgA, IgM and C3 in the cyst fluid were lower than the serum significantly (P < 0.01). No IC, ANA and ENA could been found both in serum and cyst fluid, but reactive immunocomplex was discovered on the auricle cartilagous tissue of patient, immunocomplex also be observed on human embryo aurical tissue when it reacted with cyst fluid, but complex hadn't be found when the auricle tissue of white rat and human embryo reacted with serum of patient and normal people.
Conclusion:
The reason of auricular pseudocyst may be related with the local autoimmune status of patient.
