( And ( ( blood-borne proteases ) ( ( ( are also ) ( ( key players ) ( in ( ( ( the ( inflammatory response ) ) , ) ( ( ( the ( body 's ) ) ( first line ) ) ( of ( defense ( against infection ) ) ) ) ) ) ) ) . ) ) )
(ROOT (S (CC And) (NP (JJ blood-borne) (NNS proteases)) (VP (VBP are) (ADVP (RB also)) (NP (NP (JJ key) (NNS players)) (PP (IN in) (NP (NP (DT the) (JJ inflammatory) (NN response)) (, ,) (NP (NP (NP (DT the) (NN body) (POS 's)) (JJ first) (NN line)) (PP (IN of) (NP (NP (NN defense)) (PP (IN against) (NP (NN infection)))))))))) (. .)))
And blood-borne proteases are also key players in the inflammatory response, the body's first line of defense against infection.
(ROOT (S (NP (JJ Inflammatory) (NN response)) (VP (VBZ is) (NP (NP (DT the) (JJ second) (NN line)) (PP (IN of) (NP (NN defense))))) (. .)))