Structure–Activity Relationships of Potent, Targeted Covalent Inhibitors That Abolish Both the Transamidation and GTP Binding Activities of Human Tissue Transglutaminase
摘要:
Human tissue transglutaminase (hTG2) is a multifunctional enzyme. It is primarily known for its calcium dependent transamidation activity that leads to formation of an isopeptide bond between glutamine and lysine residues found on the surface of proteins, but it is also a GTP binding protein. Overexpression and unregulated hTG2 activity have been associated with numerous human diseases, including cancer stem cell survival and metastatic phenotype. Herein, we present a series of targeted covalent inhibitors (TCIs) based on our previously reported Cbz-Lys scaffold. From this structure activity relationship (SAR) study, novel irreversible inhibitors were identified that block the transamidation activity of hTG2 and allosterically abolish its GTP binding ability with a high degree of selectivity and efficiency (k(inact)/K-I > 10(5) M-1 min(-1)). One optimized inhibitor (VA4) was also shown to inhibit epidermal cancer stem cell invasion with an EC50 of 3.9 mu M, representing a significant improvement over our previously reported "hit" NC9.
[EN] SUBSTITUTED PIPERAZINES, (1,4) DIASZEPINES, AND 2,5-DIAZABICYCLO (2.2.1) HEPTANES AS HISTAMINE H1 AND/OR H3 ANTAGONISTS OR HISTAMINE H3 REVERSE ANTAGONISTS<br/>[FR] PIPERAZINES, (1,4) DIAZEPINES, ET 2,5-DIAZABICYCLO (2.2.1) HEPTANES SUBSTITUES EN TANT QU'ANTAGONISTES DE L'HISTAMINE H1 ET/OU H3 OU ANTAGONISTES INVERSES DE L'HISTAMINE H3
申请人:GLAXO GROUP LTD
公开号:WO2004035556A1
公开(公告)日:2004-04-29
The present invention relates to novel piperazine and azepine derivatives having pharmacological activity, processes for their preparation, to compositions containing them and to their use in the treatment of neurodegenerative disorders including Alzheimer's disease.
3-Mercaptopyrrolidines as farnesyl protein transferase inhibitors
申请人:Boyle Thomas Francis
公开号:US20050209217A1
公开(公告)日:2005-09-22
The present invention relats to inhibitors of ras farnesylation of Formula (I) wherein: R
1
is for example H and further values as defined in the specification; R
2
is for example H and further values as defined in the specification; R
3
is for example H or a substituent having values as defined in the specification; p is 0-3 in which R
3
values can be the same or different; L is a linking moiety for example —CH
2
—NH— and further values as defined in the specification; A is selected from phenyl; naphthyl; a 5-10 membered monocyclic or bicyclic heteroaryl ring containing up to 5 heteroatoms where the heteroatoms are independently selected from O, N and S; or a —S—S— dimer thereof when R
2
=H; or a N-oxide or a pharmaceutically-acceptable salt, prodrug or solvate thereof. Processes for their preparation, their use as therapeutic agents and pharmaceutical compositions containing them. A particular use is in cancer therapy.
SUBSTITUTED PIPERAZINES, (1,4) DIAZEPINES, AND 2,5-DIAZABICYCLO (2.2.1) HEPTANES AS HISTAMINE H1 AND/OR H3 ANTAGONISTS OR HISTAMINE H3 REVERSE ANTAGONISTS
申请人:Ancliff Rachael
公开号:US20100075953A1
公开(公告)日:2010-03-25
The present invention relates to novel piperazine and azepine derivatives having pharmacological activity, processes for their preparation, to compositions containing them and to their use in the treatment of neurodegenerative disorders including Alzheimer's disease.
[EN] ARYLACETYL INHIBITORS OF TG2 AND USES THEREOF<br/>[FR] INHIBITEURS ARYLACÉTYLE DE TG2 ET LEURS UTILISATIONS
申请人:UNIV OTTAWA
公开号:WO2022213198A1
公开(公告)日:2022-10-13
There are provided Tissue Transglutaminase (TG2) inhibitor compounds, and compositions and methods of use thereof for the prevention or treatment of a disease state mediated by TG2, such as a cancer, a neurodegenerative disease such as Huntington's disease, fibrosis, or Celiac disease. Compounds of Formula I, and pharmaceutically acceptable salts thereof, are provided: Formula (I)