Keywords

Kawasaki disease is the most common acute systemic vasculitis of unknown etiology in children [1] and can cause inflammation of the coronary arteries leading to aneurysms. Candida albicans extract is one of the materials commonly used to induce coronary arteritis in a mouse model of Kawasaki disease [2, 3]. Here we report an optimized method for preparing C. albicans cell wall extra (CAWE).

  1. 1.

    80% of the mice administered CAWE that had been alkalinized at 87 °C showed massive inflammation around the origin of the coronary arteries. By contrast, the mice administered CAWE that had been alkalinized at 97 °C showed no inflammation.

  2. 2.

    60% of the mice administered CAWE adjusted to 640 μg protein/mouse died within 2 days whereas 100% of the mice administered CAWE adjusted to 320 μg protein/mouse exhibited inflammation but survived.

In conclusion, high heat processing causes poor pathogenicity and high protein content causes excessive pathogenicity. Therefore, CAWE that has been heat processed at 87 °C and adjusted to 320 μg protein/mouse is optimal for the mouse model of Kawasaki disease.