Immunosuppressant failure induced by a pharmaceutical composition for treating dermatopathy extract

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PROBLEM TO BE SOLVED : To provide a novel component for immune disease such as allergy.SOLUTION : This invention relates to lanostane represented by chemical formula (I) or a poria extract comprising the same, wherein Ris H or CH; Ris =O, OH, or the like; Rand Rare H or OH; Ris -C(=CH)-C(CH)R(where Ris H or OH), or the like; and Ris CHor CHOH.