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These compounds have good oral bioavailability and properties that promote them to be a good candidate for a subtype inhibitor of MMP-13 based diseases and future development. [7] Pyrimidine dicarboxamides are highly selective MMP-13 inhibitors. In the S1’ pocket of MMP-13 is an S1’ side pocket that is unique to the matrix metalloproteiase.
[5] [6] It is a member of the matrix metalloproteinase (MMP) family. Like most MMPs, it is secreted as an inactive pro-form. [7] MMP-13 has a predicted molecular weight around 54 kDa. [8] It is activated once the pro-domain is cleaved, leaving an active enzyme composed of the catalytic domain and the hemopexin-like domain . Although the actual ...
A number of rationally designed MMP inhibitors have shown some promise in the treatment of pathologies that MMPs are suspected to be involved in (see above). However, most of these, such as marimastat (BB-2516), a broad-spectrum MMP inhibitor, and cipemastat (Ro 32-3555), an MMP-1 selective inhibitor, have performed poorly in clinical trials.
The DRKS is an open access, free of charge online register for clinical trials and is available both in English and German. DRKS is part of the WHO's ICTRP. The DRKS works with two partner registries in Germany, DeReG (German Registry for Somatic Gene-Transfer Trials) and Clinical Trial Registry of the University Medical Center Freiburg. [4]
The collective MMP family is capable of degrading all known ECM macromolecules. MMP activity is regulated at the level of transcription, post-translationally by proteolytic cleavage, and by endogenous inhibitors known as tissue inhibitors of metalloproteinases (TIMPs). The role of matrix metalloproteinases and TIMPs in several pathological ...
Overall, all MMPs are inhibited by TIMPs once they are activated, but the gelatinases (MMP-2 and MMP-9) can form complexes with TIMPs when the enzymes are in their latent form. The complex of latent MMP-2 (pro-MMP-2)with TIMP-2 serves to facilitate the activation of pro-MMP-2 at the cell surface by MT1-MMP , a membrane-anchored MMP.
Batimastat was the first MMPI that went into clinical trials. First results of a Phase I trial appeared in 1994. First results of a Phase I trial appeared in 1994. The drug reached Phase III but was never marketed; mainly because it couldn't be administered orally (as opposed to the newer and chemically similar MMPI marimastat ), and injection ...
However, initial clinical trials using broad spectrum MMP inhibitors did show some positive results. Phase I clinical trials showed that MMP inhibitors are generally safe with minimal adverse side effects. Additionally, trials with marimastat did show a slight increase in survival of patients with gastric or pancreatic cancer. [14]