title: Cerebrospinal fluid interleukin-6, prostaglandin E2 and autoantibodies in patients with neuropsychiatric systemic lupus erythematosus and central nervous system infections.
abstract: Cerebrospinal fluid (CSF) from patients with a variety of central nervous system (CNS) disorders was assayed for cytokines, prostaglandins, and autoantibodies. CSF interleukin-6 (IL-6) in patients with CNS infection (374.24 +/- 92.61 pg/mL) and neuropsychiatric systemic lupus erythematosus (NP-SLE) (71.40 +/- 5.89 pg/mL) were significantly higher than in patients with CNS inflammation (33.92 +/- 29.36 pg/mL) or controls (non-inflammatory CNS diseases) (4.35 +/- 3.00 pg/mL). Interleukin-1 beta, interferon alpha, and tumor necrosis factor alpha were undetectable in these samples: CSF prostaglandin E2 (PGE2) also exhibited similar patterns as IL-6. CSF immunoglobulin G (IgG) in patients with NP-SLE (8.84 +/- 1.80 mg/dL) was much higher than in patients with CNS infection (4.65 +/- 3.09 mg/dL), CNS inflammation (2.54 +/- 1.24 mg/dL), or controls (2.11 +/- 1.03 mg/dL). CSF autoantibodies against calf thymus antigens were present in patients with NP-SLE but not in patients with CNS infection as demonstrated by immunoblot. These results suggest that high IL-6 and PGE2 in CSF favors the diagnosis of CNS infection, while modestly elevated IL-6, high IgG, and autoantibodies against calf thymus antigens in CSF are the features of NP-SLE.
authors.affiliation: Department of Medicine, Veterans General Hospital-Taipei, National Yang-Ming Medical College, Taiwan, ROC.
authors.forename: C Y
authors.initials: CY
authors.lastname: Tsai
authors.forename: T H
authors.initials: TH
authors.lastname: Wu
authors.forename: S T
authors.initials: ST
authors.lastname: Tsai
authors.forename: K H
authors.initials: KH
authors.lastname: Chen
authors.forename: P
authors.initials: P
authors.lastname: Thajeb
authors.forename: W M
authors.initials: WM
authors.lastname: Lin
authors.forename: H S
authors.initials: HS
authors.lastname: Yu
authors.forename: C L
authors.initials: CL
authors.lastname: Yu
mesh_terms: D001323:Autoantibodies / Q000134:cerebrospinal fluid* / Q000276:immunology; D002493:Central Nervous System Diseases / Q000134:cerebrospinal fluid*; D016207:Cytokines / Q000134:cerebrospinal fluid; D015232:Dinoprostone / Q000134:cerebrospinal fluid*; D006801:Humans; D007074:Immunoglobulin G / Q000134:cerebrospinal fluid; D007239:Infections / Q000134:cerebrospinal fluid; D015850:Interleukin-6 / Q000134:cerebrospinal fluid*; D008180:Lupus Erythematosus, Systemic / Q000134:cerebrospinal fluid* / Q000150:complications; D001523:Mental Disorders / Q000209:etiology; D009474:Neurons / Q000276:immunology
chemical_list: D001323:Autoantibodies; D016207:Cytokines; D007074:Immunoglobulin G; D015850:Interleukin-6; D015232:Dinoprostone