title: Infliximab monotherapy in psoriasis: a case of rapid clinical and histological response.
abstract: BACKGROUND
  Psoriasis is a common chronic relapsing, inflammatory, hyperproliferative skin disorder with genetic predisposition. There is currently no experimental model for psoriasis and the pathogenesis is not fully understood. Psoriatic plaques have been shown to contain increased levels of cytokines, including tumor necrosis factor alpha (TNF-alpha). Anti-tumor necrosis factor therapy with infliximab has been shown to be highly effective in recalcitrant psoriasis.
  
  
  METHODS
  We evaluated the efficacy and timeline of histological changes in a psoriatic plaque following infliximab infusion. A patient with severe recalcitrant plaque psoriasis was clinically and histologically assessed for improvement.
  
  
  RESULTS
  We found rapid clinical improvement with infliximab accompanied by histopathological changes. The earliest effects were seen on neutrophils and lymphocytes whereas keratinocyte normalization was not evident at the early stages.
  
  
  CONCLUSIONS
  Infliximab is not only an effective agent in the treatment of psoriasis but appears to have a very rapid onset of action.
authors.affiliation: Department of Dermatology and Cutaneous Surgery, University of Miami School of Medicine, Miami, FL, USA.
authors.forename: V
authors.initials: V
authors.lastname: Vincek
authors.forename: S E
authors.initials: SE
authors.lastname: Jacob
authors.forename: M
authors.initials: M
authors.lastname: Nassiri
authors.forename: L M
authors.initials: LM
authors.lastname: Herbert
authors.forename: M
authors.initials: M
authors.lastname: Nadji
authors.forename: F A
authors.initials: FA
authors.lastname: Kerdel
mesh_terms: D000911:Antibodies, Monoclonal / Q000627:therapeutic use*; D003879:Dermatologic Agents / Q000627:therapeutic use*; D006801:Humans; D000069285:Infliximab; D007262:Infusions, Intravenous; D015603:Keratinocytes / Q000378:metabolism; D019394:Ki-67 Antigen / Q000032:analysis; D008214:Lymphocytes / Q000378:metabolism; D008297:Male; D008875:Middle Aged; D009504:Neutrophils / Q000378:metabolism; D011565:Psoriasis / Q000188:drug therapy* / Q000473:pathology; D013997:Time Factors; D014409:Tumor Necrosis Factor-alpha / Q000032:analysis
chemical_list: D000911:Antibodies, Monoclonal; D003879:Dermatologic Agents; D019394:Ki-67 Antigen; D014409:Tumor Necrosis Factor-alpha; D000069285:Infliximab