also: エッチエルエーこうげん
noun
Medical term for proteins on cell surfaces that help the immune system distinguish self from non-self; important in organ transplantation and disease association.
臓器移植の前に、患者とドナーのHLA抗原の適合性を調べます。
Before organ transplantation, the compatibility of the patient's and donor's HLA antigens is checked.
特定のHLA抗原が自己免疫疾患と関連していることが知られている。
It is known that certain HLA antigens are associated with autoimmune diseases.