Circular trimers of gelatinase B/matrix metalloproteinase-9 constitute a distinct population of functional enzyme molecules differentially regulated by tissue inhibitor of metalloproteinases-1

Jennifer Vandooren, Benjamin Born, Inna Solomonov, Ewa Zajac, Radka Saldova, Michael Senske, Estefanía Ugarte-Berzal, Erik Martens, Philippe E Van den Steen, Jo Van Damme, Angeles Garcia-Pardo, Matheus Froeyen, Elena I Deryugina, James P Quigley, Søren K Moestrup, Pauline M Rudd, Irit Sagi, Ghislain Opdenakker