185116-42-1Relevant articles and documents
Antibacterial evaluation of structurally amphipathic, membrane active small cationic peptidomimetics: Synthesized by incorporating 3-amino benzoic acid as peptidomimetic element
Lohan, Sandeep,Cameotra, Swaranjit Singh,Bisht, Gopal Singh
, p. 102 - 115 (2014)
A new series of small cationic peptidomimetics were synthesized by incorporating 3-amino benzoic acid (3-ABA) in a small structural framework with the objective to mimic essential properties of natural antimicrobial peptides (AMPs). The new design approac
Preptin analogues: Chemical synthesis, secondary structure and biological studies
Buchanan, Christina M.,Peng, Zhenzhen,Cefre, Aiko,Sarojini, Vijayalekshmi
, p. 429 - 437 (2013)
Peptide hormones that modulate insulin secretion have been recognized to have therapeutic potential, with peptides such as amylin (pramlintide acetate, Symlin) and exendin-4 (exenatide, Byetta) now commercially available. Preptin is a peptide that has been shown to increase insulin secretion in vitro and in vivo. Here, we describe the first chemical synthesis and analysis of a short series of preptin analogues based on the rat preptin sequence. Phe 21 in the preptin sequence was substituted with the non-protein amino acids D-Phe, D-Hphe, 3-aminobenzoic acid and 1-aminocyclooctane-1-carboxylic acid, which rendered the preptin analogues resistant to chymotryptic protease hydrolysis at this position. Substitution of Phe 21 with these non-protein amino acids did not abrogate the insulin secretory effect of preptin, with analogues showing a similar dose-dependent effect on insulin secretion from βTC6-F7 mouse β-cells in both the presence and absence of glucose as unmodified rat preptin. Further studies on the stability of the preptin analogues and their effect on insulin secretion are in progress.
Synthesis, molecular docking analysis and biological evaluations of saccharide-modified thiadiazole sulfonamide derivatives
Zhang, Zuo-Peng,Zhong, Ye,Han, Zhen-Bin,Zhou, Lin,Su, Hua-Sheng,Wang, Jian,Liu, Yang,Cheng, Mao-Sheng
, (2021/05/26)
A series of saccharide-modified thiadiazole sulfonamide derivatives has been designed and synthesized by the “tail approach” and evaluated for inhibitory activity against carbonic anhydrases II, IX, and XII. Most of the compounds showed high topological polar surface area (TPSA) values and excellent enzyme inhibitory activity. The impacts of some compounds on the viability of HT-29, MDA-MB-231, and MG-63 human cancer cell lines were examined under both normoxic and hypoxic conditions, and they showed certain inhibitory effects on cell viability. Moreover, it was found that the series of compounds had the ability to raise the pH of the tumor cell microenvironment. All the results proved that saccharide-modified thiadiazole sulfonamides have important research prospects for the development of CA IX inhibitors.
Can self-assembled hydrogels composed of aromatic amino acid derivatives function as drug delivery carriers?
Tiwari, Priyanka,Rajagopalan, Ramanathan,Moin, Mohammad,Soni, Rohit,Trivedi, Piyush,DuttKonar, Anita
, p. 308 - 315 (2016/12/30)
Low molecular weight hydrogelators (LMOHGs) have attracted recent attention due to their diversified applications. In an attempt to artificially imitate their importance in the design of drug delivery carriers, we have synthesized two simple N-terminally protected aromatic amino-acid derivatives that form efficient stable hydrogels at room temperature. The gelation properties of the hydrogels have been thoroughly investigated using various techniques and their strength has been determined by rheological studies. In order to explore the efficacy of the hydrogels as tools for drug delivery, we have developed hydrogel nanoparticles (HNPs) using a surfactant and high-speed homogenization approach. Interestingly, our hydrogel nanoparticles display good entrapment efficiency and release kinetics of the model drug 5-fluoro uracil from the hydrogel matrix. Our experimental results reveal that hydrogel II displays slightly higher efficiency as a drug delivery carrier, which may be due to the presence of an aromatic ring in the backbone in comparison to hydrogel I. This increased strength may be attributed to the increase in π-π interactions when the aromatic residue is present in the backbone. Therefore the nanoparticles generated from hydrogel II may have better hydrogen bonding abilities with drugs in comparison to hydrogel I; thus resulting in a slightly slower release of drug from the hydrogel matrix. This fact may shed some light on the candidature of our hydrogels as future carriers for drug delivery. However, further studies to evaluate the candidature of these novel types of aromatic amino acid hydrogel nanoparticles for nano-medical applications are under investigation.