Cigarette smoke can activate the alternative pathway of complement in vitro by modifying the third component of complement.

P183: Key Function of Complement System in Interactions between Pain and Nociceptors, C5a, and C3a

A part of the immune system that improves (complements) the ability of antibodies and phagocytic cells to clear microorganisms and injured cells from an organism, attacks the pathogen's cell membrane, and encourages inflammation called complement system. It is main part of immune system. Over thirty proteins and protein pieces compose the complement system, including cell membrane receptors, an...

Characterization of complement activity in serum of the four sturgeon species, Acipenser stellatus, A. baeri, A. nudiventris and Huso huso (Chondrostei: Acipenseridae)

Serum complement is valuable tool in determining the health status of fish. This study was conducted to examine in vitro activity of serum complement as an indicator of innate immunity in four sturgeon species, Acipenser stellatus, A. baeri, A. nudiventris and Huso huso (Chondrostei: Acipenseridae). The Effects of different temperatures, concentrations and volumes of serum on alternative comple...

P 144: Sunflower Mannose binding Lectin-Associated Serine Protease Inhibitor-1 (SFMI-1) and -2: Significant Inhibitors of Mannose binding Lectin Pathway which Helps in Multiple Sclerosis Treatment

One of the important parts of innate immunity is complement system that occurs in three different ways; the classic, the alternative and the lectin pathway. The four pattern recognition molecules that have been identified till now are Mannose binding lectin (MBL), a component of lectin pathway, and three ficolins (ficolin1,-2 and -3) which compound to the carbohydrates of the cell surface. MBL ...

Inherited Classical and Alternative Pathway Complement Deficiencies in Children: A Single Center Experience

Correlation of α1-antitrypsin (A1AT), Complement component C5a and Secretory Immunoglobulin A (sIgA) with pulmonary complications; 20 years after sulfur mustard exposure, Sardasht-Iran Cohort Study

Background: Little is known about pulmonary complications induced by Sulfur Mustard (SM), as a chemical warfare agent,especially considering its long term effects. The present study was carried out to investigate the association of α1-antitrypsin(A1AT), Complement component C5a, and Secretory Immunoglobulin A (sIgA) with long-term pulmonary complications on SMexposedindividuals, 20 years after ...