Selective Substrates and Activity-Based Probes for Imaging of the Human Constitutive 20S Proteasome in Cells and Blood Samples
作者:Wioletta Rut、Marcin Poręba、Paulina Kasperkiewicz、Scott J. Snipas、Marcin Drąg
DOI:10.1021/acs.jmedchem.8b00026
日期:2018.6.28
the HyCoSuL approach, we designed and synthesized novel and selective fluorogenic substrates for each of these three constitutive 20S proteasome activities and applied them to assess inhibition of proteasome subunits by MG-132 and a clinically used inhibitor bortezomib. Our results confirm the utility of designed substrates in biochemical assays. Furthermore, selective peptide sequences obtained in this
Synthesis and Pharmacological Characterization of Novel Glucagon-like Peptide-2 (GLP-2) Analogues with Low Systemic Clearance
作者:Kazimierz Wiśniewski、Javier Sueiras-Diaz、Guangcheng Jiang、Robert Galyean、Mark Lu、Dorain Thompson、Yung-Chih Wang、Glenn Croston、Alexander Posch、Diane M. Hargrove、Halina Wiśniewska、Régent Laporte、John J. Dwyer、Steve Qi、Karthik Srinivasan、Jennifer Hartwig、Nicky Ferdyan、Monica Mares、John Kraus、Sudarkodi Alagarsamy、Pierre J. M. Rivière、Claudio D. Schteingart
DOI:10.1021/acs.jmedchem.5b01909
日期:2016.4.14
pharmacokinetic characteristics, a series of GLP-2 analogues containing Gly substitution at position 2, norleucine in position 10, and hydrophobic substitutions in positions 11 and/or 16 was designed and synthesized. In vitro receptor potency at the human GLP-2, selectivity vs the human GLP-1 and GCG receptors, and PK profile in rats were determined for the new analogues. A number of compounds more potent at the
MACROCYCLIC COMPOUNDS FOR INHIBITION OF TUMOR NECROSIS FACTOR ALPHA
申请人:Lee Jinbo
公开号:US20100152099A1
公开(公告)日:2010-06-17
The invention provides macrocyclic compounds and methods for their synthesis and use. In particular, the invention provides macrocyclic compounds that modulate the activity of tumor necrosis factor alpha and/or are useful in the treatment of medical conditions, such as, rheumatoid arthritis, psoriasis, and asthma.
Melanocortin Tetrapeptide Ac-His-DPhe-Arg-Trp-NH<sub>2</sub> Modified at the Para Position of the Benzyl Side Chain (DPhe): Importance for Mouse Melanocortin-3 Receptor Agonist versus Antagonist Activity
作者:Bettina Proneth、Irina D. Pogozheva、Federico P. Portillo、Henry I. Mosberg、Carrie Haskell-Luevano
DOI:10.1021/jm800291b
日期:2008.9.25
The melanocortin-3 and -4 receptors (MC3R, MC4R) have been implicated in energy homeostasis and obesity. Whereas the physiological role of the MC4R is extensively studied, little is known about the MC3R. One caveat is the limited availability of ligands that are selective for the MC3R. Previous studies identified Ac-His-DPhe(p-I)-Arg-Trp-NH2, which possessed partial agonist/antagonist pharmacology at the mMC3R while retaining full nanomolar agonist pharrnacology at the mMC4R. These data allowed for the hypothesis that the DPhe position in melanocortin tetrapeptides can be used to examine ligand side-chain determinants important for differentiation of mMC3R agonist versus antagonist activity. A series of 15 DPhe(7) modified Ac-His-DPhe(7)-Arg-Trp-NH2 tetrapeptides has been synthesized and pharmacologically characterized. Most notable results include the identification of modifications that resulted in potent antagonists/partial agonists at the mMC3R and full, potent agonists at the mMC4R. These SAR studies provide experimental evidence that the molecular mechanism of antagonism at the mMC3R differentiates this subtype from the mMC4R.