title: Immunosuppressive therapy with antithymocyte globulin and cyclosporine for prolonged marrow failure after hemophagocytic syndrome.
abstract: We describe a patient with typical hemophagocytic syndrome (HPS) in whom pancytopenia was refractory to steroid pulse therapy. He was successfully treated with immunosuppressive therapy using antithymocyte globulin (ATG) and cyclosporine (CyA), which is known to be effective for aplastic anemia (AA). Activation of histiocytes occurs in HPS as a response to several cytokines produced by activated T lymphocytes, while apoptosis of hematopoietic stem cells in AA is caused by T lymphocyte-derived cytokines. The response of this patient indicated that both diseases may have some similar immune-mediated conditions involving the activation of T lymphocytes and that intensive immunosuppressive therapy with ATG and CyA might be a useful strategy for steroid-resistant HPS.
authors.affiliation: Division of Hematology and Oncology, Department of Internal Medicine, Jikei University, School of Medicine, 3-19-18 Nishi Shinbashi, 105-8471 Minato-ku, Tokyo, Japan. ken.kaito@jikei.ac.jp
authors.forename: K
authors.initials: K
authors.lastname: Kaito
authors.forename: H
authors.initials: H
authors.lastname: Otsubo
authors.forename: Y
authors.initials: Y
authors.lastname: Takei
authors.forename: N
authors.initials: N
authors.lastname: Usui
authors.forename: M
authors.initials: M
authors.lastname: Kobayashi
mesh_terms: D000328:Adult; D000961:Antilymphocyte Serum / Q000627:therapeutic use*; D016572:Cyclosporine / Q000627:therapeutic use*; D006454:Hemoglobins / Q000378:metabolism; D015616:Histiocytosis, Non-Langerhans-Cell / Q000097:blood / Q000150:complications*; D006801:Humans; D007166:Immunosuppressive Agents / Q000627:therapeutic use*; D007958:Leukocyte Count; D008297:Male; D008775:Methylprednisolone / Q000627:therapeutic use; D010198:Pancytopenia / Q000097:blood / Q000188:drug therapy* / Q000209:etiology*; D010976:Platelet Count; D017701:Reticulocyte Count; D016896:Treatment Outcome
chemical_list: D000961:Antilymphocyte Serum; D006454:Hemoglobins; D007166:Immunosuppressive Agents; D016572:Cyclosporine; D008775:Methylprednisolone