title: Effects of adacolumn selective leukocytapheresis on plasma cytokines during active disease in patients with active ulcerative colitis.
abstract: OBJECTIVE
  To investigate the relationship between ulcerative colitis (UC) clinical activity index (CAI) and circulating levels of IL-1ra, IL-10, IL-6 and IL-18.
  
  
  METHODS
  Blood levels of IL-1ra, IL-10, IL-6 and IL-18 were measured in 31 patients with active UC, the mean CAI was 11.1, ranging from 5-25; and 12 healthy individuals as controls. Patients were given granulocyte and monocyte adsorptive apheresis (GMA) with Adacolumn. Leucocytes which bear the FcgammaR and complement receptors were adsorbed to the column leucocytapheresis carriers. Each patient could receive up to 11 GMA sessions over 8 wk.
  
  
  RESULTS
  We found strong correlations between CAI and IL-10 (r = 0.827, P < 0.001), IL-6 (r = 0.785, P < 0.001) and IL-18 (r = 0.791, P < 0.001). IL-1ra was not correlated with CAI. Following GMA therapy, 24 of the 31 patients achieved remission and the levels of all 4 cytokines fell to the levels in healthy controls. Further, blood levels of IL-1ra and IL-10 increased at the column outflow and inflow at 60 min suggesting release from leucocytes that adhered to the carriers.
authors.affiliation: Hamamatsu South Hospital, Center for Gastroenterology and IBD Research, Japan. flw-1013@topaz.plala.or.jp
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Hanai
authors.forename: Takayuki
authors.initials: T
authors.lastname: Iida
authors.forename: Masami
authors.initials: M
authors.lastname: Yamada
authors.forename: Yoshihiko
authors.initials: Y
authors.lastname: Sato
authors.forename: Ken
authors.initials: K
authors.lastname: Takeuchi
authors.forename: Tatsuo
authors.initials: T
authors.lastname: Tanaka
authors.forename: Kenji
authors.initials: K
authors.lastname: Kondo
authors.forename: Masataka
authors.initials: M
authors.lastname: Kikuyama
authors.forename: Yasuhiko
authors.initials: Y
authors.lastname: Maruyama
authors.forename: Yasushi
authors.initials: Y
authors.lastname: Iwaoka
authors.forename: Akiko
authors.initials: A
authors.lastname: Nakamura
authors.forename: Kazuhisa
authors.initials: K
authors.lastname: Hirayama
authors.forename: Abby R
authors.initials: AR
authors.lastname: Saniabadi
authors.forename: Fumitoshi
authors.initials: F
authors.lastname: Watanabe
mesh_terms: D000293:Adolescent; D000328:Adult; D001772:Blood Cell Count; D003093:Colitis, Ulcerative / Q000097:blood* / Q000276:immunology* / Q000628:therapy; D016207:Cytokines / Q000097:blood* / Q000502:physiology; D005260:Female; D006098:Granulocytes / Q000473:pathology / Q000502:physiology; D006801:Humans; D007249:Inflammation / Q000097:blood / Q000503:physiopathology; D007378:Interleukins / Q000097:blood*; D007937:Leukapheresis / Q000379:methods*; D008264:Macrophages / Q000473:pathology / Q000502:physiology; D008297:Male; D008875:Middle Aged; D009000:Monocytes / Q000473:pathology / Q000502:physiology; D012720:Severity of Illness Index
chemical_list: D016207:Cytokines; D007378:Interleukins