[Vesiculocytosis]

Area of Science:

• Immunology
• Cell Biology
• Histology

Background:

• Plaque-forming cells are crucial for detecting autoantibodies.
• Accurate detection relies on proper sample preparation.
• Hypertonic conditions can alter cell morphology and function.

Purpose of the Study:

• To investigate the phenomenon of false plaque formation in hypertonic salt solutions.
• To understand the mechanisms behind artifactual plaque formation.
• To identify factors influencing false plaque formation during autoantibody detection.

Main Methods:

• Preparation of blood and tissue samples.
• Exposure of samples to hypertonic salt solutions (10-15%).
• Microscopic examination for plaque formation and cell morphology changes.

Main Results:

• Hypertonic salt solutions induced false plaque formation due to cell lysis and pyknosis.
• This artifact occurred in various animal and human blood karyocytes.
• False plaque formation was dependent on cell condition and the specific salt used.
• The phenomenon was most pronounced during maximal immune response.

Conclusions:

• Hypertonic solutions used in sample preparation can lead to artifactual results in plaque assays.
• Cellular integrity and condition are critical factors in preventing false plaque formation.
• Careful control of solution tonicity is essential for reliable autoantibody detection.