title: [Proliferative vitreoretinopathy. Activation of the complement system].
abstract: The complement system is a principal constituent of humoral immune reactions. Because of the multitude of biological effects related to complement activation, we analyzed its potential pathophysiological importance in the development of proliferative vitreoretinopathy (PVR). Vitreous aspirates from patients with idiopathic PVR (n = 7) and traumatic PVR (n = 11) were examined for total vitreal protein, complement components C3, C3d, and C1q-fixed immunoglobulins using enzyme-linked immunosorbent assay (ELISA), SDS-Page and Western blotting. Total vitreal protein and C3 components were significantly elevated both in traumatic and idiopathic PVR. Elevated levels of C3d titers in both PVR forms reflect an activation of the complement system. C1q-fixed IgG suggests complement activation via the classic pathway as a result of a humoral antibody-dependent immune reaction.
authors.affiliation: Universitäts-Augenklinik Köln.
authors.forename: S
authors.initials: S
authors.lastname: Grisanti
authors.forename: P
authors.initials: P
authors.lastname: Esser
authors.forename: M
authors.initials: M
authors.lastname: Weller
authors.forename: P
authors.initials: P
authors.lastname: Wiedemann
authors.forename: K
authors.initials: K
authors.lastname: Heimann
mesh_terms: D001327:Autoimmune Diseases / Q000276:immunology*; D001813:Blood-Retinal Barrier / Q000502:physiology*; D003167:Complement Activation / Q000276:immunology*; D003176:Complement C3 / Q000032:analysis; D015807:Eye Injuries, Penetrating / Q000276:immunology*; D006801:Humans; D007105:Immune Complex Diseases / Q000276:immunology; D012163:Retinal Detachment / Q000276:immunology*; D014822:Vitreous Body / Q000276:immunology*
chemical_list: D003176:Complement C3
vernacular_title: Die proliferative Vitreoretinopathie. Aktivierung des Komplementsystems.