Abstract: The present invention relates to methods and materials for modulating the complement alternative pathway (CAP), the complement classical pathway (CCP), the complement lectin/mannose pathway (CMP), or combinations thereof, as well as methods and materials for targeting diagnostic, prophylactic and therapeutic agents to localized areas of tissue within the body where they may more directly exert their effects upon the intended target cells or tissue, with reduced, associated systemic effects compared with administration of the same or similar agents in an untargeted, systemic manner. The methods and materials of the present invention may therefore allow for increased efficacy, lower threshold effective dosages and/or lower effective maintenance doses, and/or reduced associated undesired or adverse effects in terms of frequency or severity of occurrence, or both.

Abstract: The present invention relates to methods and materials for modulating the complement alternative pathway (CAP), the complement classical pathway (CCP), the complement lectin/mannose pathway (CMP), or combinations thereof, as well as methods and materials for targeting prophylactic or therapeutic agents to localized areas of tissue within the body where they may more directly exert their effects upon the intended target cells or tissue, with reduced, associated systemic effects compared with administration of the same or similar agents in an untargeted, systemic manner. The methods and materials of the present invention may therefore allow for increased efficacy, lower threshold effective dosages and/or lower effective maintenance doses, and/or reduced associated undesired or adverse effects in terms of frequency or severity of occurrence, or both.

Abstract: Methods of non-invasive imaging of complement-mediated inflammation are provided. Compositions including CR-targeted ultrasmall superparamagnetic nanoparticles or aggregates thereof for use with those methods are also provided.

Abstract: Provided herein are compositions, including pharmaceutical compositions, and methods for modulating, i.e., stimulating or inhibiting, activity of the alternative complement pathway, and methods of identifying factor H-binding proteins.

Abstract: Disclosed are novel inhibitors of the alternative complement pathway and particularly, novel anti-factor B antibodies. Also disclosed is the use of such inhibitors to reduce or prevent airway hyperresponsiveness and/or airway inflammation by selectively inhibiting the alternative complement pathway, thereby treating diseases in which such conditions play a role. Also disclosed is the use of such inhibitors to reduce or prevent other diseases and conditions, including ischemia-reperfusion injury, by inhibition of the alternative complement pathway.