The incomplete degradation of 3D/FN and 3D/LN structures may reflect the low or lack of expression of MMPs specific for these ECM proteins, namely, MMP7, MMP10, MMP11, MMP14, and MMP15
for LN and MMP7, MMP10, MMP11, MMP12, MMP14, and MMP15
Due to structural and substrate specificity, MMPs are currently divided into seven classes: collagenases (MMP1, MMP8, MMP13, and MMP18), gelatinases (MMP2 and MMP9), stromelysins (MMP3, MMP10), stromelysin like (MMP11 and MMP12), matrilysins (MMP7 and MMP26), membrane type (MMP14, MMP15
, MMP16, MMP17, MMP24, and MMP25), and others (MMP19, MMP20, MMP21, MMP22, MMP23, MMP27, and MMP28) [18, 27, 28].
"After the confrontation and the defeat of the attackers by the security forces, a large quantity of arms was retrieved which included two heavy machine guns with telescopic sights, 17 MMP15
individual assault rifles with aiming devices, nine AKM automatic assault rifles, four light machines guns, three pistols, one pair of night-vision goggles, 17 body armours, 20 jackets, five camel bags and 11 satellite pro-communication devices which were intended to be used for communication among themselves and to communicate to the outside world when they have destroyed the communication infrastructure in the country after failing to capture the State House," said the minister.