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1.
Sci Rep ; 14(1): 9410, 2024 04 24.
Artículo en Inglés | MEDLINE | ID: mdl-38658742

RESUMEN

Diabetes mellitus (DM) is a persistent, progressive, and multifaceted disease characterized by elevated blood glucose levels. Type 2 diabetes mellitus is associated with a relative deficit in insulin mainly due to beta cell dysfunction and peripheral insulin resistance. Metformin has been widely prescribed as a primary treatment option to address this condition. On the other hand, an emerging glucose-reducing agent known as imeglimin has garnered attention due to its similarity to metformin in terms of chemical structure. In this study, an innovative series of imeglimin derivatives, labeled 3(a-j), were synthesized through a one-step reaction involving an aldehyde and metformin. The chemical structures of these derivatives were thoroughly characterized using ESI-MS, 1H, and 13C NMR spectroscopy. In vivo tests on a zebrafish diabetic model were used to evaluate the efficacy of the synthesized compounds. All compounds 3(a-j) showed significant antidiabetic effects. It is worth mentioning that compounds 3b (FBS = 72.3 ± 7.2 mg/dL) and 3g (FBS = 72.7 ± 4.3 mg/dL) have antidiabetic effects comparable to those of the standard drugs metformin (FBS = 74.0 ± 5.1 mg/dL) and imeglimin (82.3 ± 5.2 mg/dL). In addition, a docking study was performed to predict the possible interactions between the synthesized compounds and both SIRT1 and GSK-3ß targets. The docking results were in good agreement with the experimental assay results.


Asunto(s)
Diabetes Mellitus Experimental , Hipoglucemiantes , Simulación del Acoplamiento Molecular , Triazinas , Pez Cebra , Animales , Hipoglucemiantes/farmacología , Hipoglucemiantes/química , Hipoglucemiantes/síntesis química , Hipoglucemiantes/uso terapéutico , Diabetes Mellitus Experimental/tratamiento farmacológico , Metformina/farmacología , Metformina/química , Metformina/síntesis química , Diabetes Mellitus Tipo 2/tratamiento farmacológico , Diabetes Mellitus Tipo 2/metabolismo , Glucemia/metabolismo , Modelos Animales de Enfermedad
2.
Sci Rep ; 13(1): 21, 2023 01 02.
Artículo en Inglés | MEDLINE | ID: mdl-36593349

RESUMEN

To identify potent urease inhibitors, in the current study, a series of thioxothiazolidinyl-acetamides were designed and synthesized. The prepared compounds were characterized by spectroscopic techniques, including FTIR, 1HNMR, 13CNMR, and elemental analysis. In the enzymatic assessments, it was demonstrated that all derivatives had significant urease inhibition with IC50 values in the range of 1.473-9.274 µM in comparison with the positive control hydroxyurea (IC50 = 100.21 ± 2.5 µM) and thiourea (IC50 = 23.62 ± 0.84 µM). Compound 6i (N-benzyl-3-butyl-4-oxo-2-thioxothiazolidine-5-carboxamide) was the most active agent with an IC50 value of 1.473 µM. Additionally, kinetic investigation and in silico assessments of 6i was carried out to understand the type of inhibition and behavior of the most potent derivative within the binding site of the enzyme. Noteworthy, the anti-urease assay against P. vulgaris revealed 6e and 6i as the most active agents with IC50 values of 15.27 ± 2.40 and 17.78 ± 3.75 µg/mL, respectively. Antimicrobial evaluations of all compounds reveal that compounds 6n and 6o were the most potent antimicrobial agents against the standard and resistant S. aureus. 6n and 6o also showed 37 and 27% inhibition in the development of biofilm by S. aureus at 512 µg/ml. Furthermore, the MTT test showed no toxicity up to 100 µM. Taken together, the study suggests that the synthesized thioxothiazolidinyl-acetamides bases derivatives may serve as potential hits as urease inhibitors.


Asunto(s)
Inhibidores Enzimáticos , Staphylococcus aureus Resistente a Meticilina , Relación Estructura-Actividad , Inhibidores Enzimáticos/química , Simulación de Dinámica Molecular , Staphylococcus aureus Resistente a Meticilina/metabolismo , Staphylococcus aureus/metabolismo , Simulación del Acoplamiento Molecular , Ureasa/metabolismo , Amidas , Acetamidas/farmacología , Estructura Molecular
3.
Cell Tissue Bank ; 24(1): 1-9, 2023 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-35871425

RESUMEN

The field of regenerative medicine (RM) as an innovative technology has the ability to affect the healthcare system. It develops a variety of techniques through stem cell biology, genetics, bioengineering, biomaterial science, and tissue engineering to replace or restore the role of lost, disabled, or aging cells in the human body. However, the field's proficiency has still been underwhelming at the clinical trial level. This could be due to the innovation of such technologies, as well as their incredible nature. Therefore, managing the infrastructure framework for the safe and efficient application of the aforementioned field of science would help in the process of progress. In this context, the current review focuses on how to establish infrastructures for more effective RM.


Asunto(s)
Medicina Regenerativa , Ingeniería de Tejidos , Humanos , Medicina Regenerativa/métodos , Ingeniería de Tejidos/métodos , Materiales Biocompatibles , Bioingeniería , Células Madre
4.
Regen Eng Transl Med ; 9(1): 83-96, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-35968268

RESUMEN

Purpose: Organoids are three-dimensional cultures of stem cells in an environment similar to the body's extracellular matrix. This is also a novel development in the realm of regenerative medicine. Stem cells can begin to develop into 3D structures by modifying signaling pathways. To form organoids, stem cells are transplanted into the extracellular matrix. Organoids have provided the required technologies to reproduce human tissues. As a result, it might be used in place of animal models in scientific study. The key goals of these investigations are research into viral and genetic illnesses, malignancies, and extracellular vesicles, pharmaceutical discovery, and organ transplantation. Organoids can help pave the road for precision medicine through genetic editing, pharmaceutical development, and cell therapy. Methods: PubMed, Google Scholar, and Scopus were used to search for all relevant papers written in English (1907-2021). The study abstracts were scrutinized. Studies on the use of stem-cell-derived organoids in regenerative medicine, organoids as 3D culture models for EVs analysis, and organoids for precision medicine were included. Articles with other irrelevant aims, meetings, letters, commentaries, congress and conference abstracts, and articles with no available full texts were excluded. Results: According to the included studies, organoids have various origins, types, and applications in regenerative and precision medicine, as well as an important role in studying extracellular vesicles. Conclusion: Organoids are considered a bridge that connects preclinical studies to clinical ones. However, the lack of a standardized protocol and other barriers addressed in this review, hinder the vast use of this technology. Lay Summary: Organoids are 3D stem cell propagations in biological or synthetic scaffolds that mimic ECM to allow intercellular or matrix-cellular crosstalk. Because these structures are similar to organs in the body, they can be used as research models. Organoids are medicine's future hope for organ transplantation, tumor biobank formation, and the development of precision medicine. Organoid models can be used to study cell-to-cell interactions as well as effective factors like inflammation and aging. Bioengineering technologies are also used to define the size, shape, and composition of organoids before transforming them into precise structures. Finally, the importance of organoid applications in regenerative medicine has opened a new window for a better understanding of biological research, as discussed in this study.

5.
Sci Rep ; 12(1): 13827, 2022 08 15.
Artículo en Inglés | MEDLINE | ID: mdl-35970866

RESUMEN

A new series of N-thioacylated ciprofloxacin 3a-n were designed and synthesized based on Willgerodt-Kindler reaction. The results of in vitro urease inhibitory assay indicated that almost all the synthesized compounds 3a-n (IC50 = 2.05 ± 0.03-32.49 ± 0.32 µM) were more potent than standard inhibitors, hydroxyurea (IC50 = 100 ± 2.5 µM) and thiourea (IC50 = 23 ± 0.84 µM). The study of antibacterial activity against Gram-positive species (S. aureus and S. epidermidis) revealed that the majority of compounds were more active than ciprofloxacin as the standard drug, and 3h derivative bearing 3-fluoro group had the same effect as ciprofloxacin against Gram-negative bacteria (P. aeruginosa and E. coli). Based on molecular dynamic simulations, compound 3n exhibited pronounced interactions with the critical residues of the urease active site and mobile flap pocket so that the quinolone ring coordinated toward the metal bi-nickel center and the essential residues at the flap site like His593, His594, and Arg609. These interactions caused blocking the active site and stabilized the movement of the mobile flap at the entrance of the active site channel, which significantly reduced the catalytic activity of urease. Noteworthy, 3n also exhibited IC50 values of 5.59 ± 2.38 and 5.72 ± 1.312 µg/ml to inhibit urease enzyme against C. neoformans and P. vulgaris in the ureolytic assay.


Asunto(s)
Antibacterianos , Ciprofloxacina , Inhibidores Enzimáticos , Ureasa , Antibacterianos/química , Ciprofloxacina/farmacología , Inhibidores Enzimáticos/química , Escherichia coli/efectos de los fármacos , Simulación del Acoplamiento Molecular , Estructura Molecular , Pseudomonas aeruginosa/efectos de los fármacos , Staphylococcus aureus/efectos de los fármacos , Staphylococcus epidermidis/efectos de los fármacos , Relación Estructura-Actividad , Ureasa/antagonistas & inhibidores
6.
Bioorg Chem ; 127: 105996, 2022 10.
Artículo en Inglés | MEDLINE | ID: mdl-35878449

RESUMEN

In the development of novel anti-α-glucosidase agents, we synthesized novel thieno[2,3-b]quinoline-hydrazones 9a-n by facile and efficient conventional chemical reactions. These compounds were characterized by IR, 1H NMR, 13C NMR, and elemental analysis. Inhibitory activities of the title compounds were evaluated against yeast α-glucosidase. In particular, compounds 9c, 9d, and 9h exhibited high anti-α-glucosidase activity. Representatively, compound 9c with IC50 = 1.3 µM, was 576-times more potent than positive control acarbose. Molecular docking study of the most active compounds showed that these compounds formed important binding interactions at α-glucosidase active site. Molecular dynamics study of compound 9c was also performed and the obtained results were compared with acarbose. Compounds 9c, 9d, and 9h were also evaluated for in silico druglikeness properties and ADMET prediction. These studies showed that the title most potent compounds could be exploited as drug candidates.


Asunto(s)
Quinolinas , alfa-Glucosidasas , Acarbosa/farmacología , Inhibidores de Glicósido Hidrolasas/química , Hidrazonas/química , Simulación del Acoplamiento Molecular , Estructura Molecular , Quinolinas/química , Saccharomyces cerevisiae/metabolismo , Relación Estructura-Actividad , alfa-Glucosidasas/metabolismo
7.
ACS Omega ; 7(23): 19401-19411, 2022 Jun 14.
Artículo en Inglés | MEDLINE | ID: mdl-35721925

RESUMEN

Helicobacter pylori-induced ulcers and gastric cancer have been one of the main obstacles that the human community has ever struggled with, especially in recent decades. Several different attempts have been made to eradicate this group. One of the most widely used attempts is to inhibit the critical enzyme that facilitates its survival, the urease enzyme. Therefore, in this study, isoindolin-1-ones fused to barbiturates were designed, synthesized, and evaluated for their in vitro urease inhibitory activity as novel inhibitors for the urease enzyme. The synthesis route consisted of two steps. These steps increased the yield rate and decreased the percentage of byproducts while approaching green chemistry using ethanol and water as green solvents and microwave irradiation instead of conventional methods. In vitro urease inhibitory results indicated that all the compounds had higher inhibitory activity than the standard inhibitor, thiourea, and compound 5b proved to be the most potent inhibitor (IC50 = 0.82 ± 0.03 µM). A molecular docking study was performed to understand the interaction between compounds 5a-n and Jack bean urease enzyme. The results of the molecular docking study were also in harmony with the in vitro results, which are discussed in detail later in this study.

8.
Chem Biodivers ; 19(7): e202100964, 2022 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-35675562

RESUMEN

Tyrosinase plays a pivotal role in the hyperpigmentation and enzymatic browning of fruit and vegetable. Therefore, tyrosinase inhibitors can be of interest in industries as depigmentation compounds as well as anti-browning agents. In the present study, a series of chlorophenylquinazolin-4(3H)-one derivative were rationally designed and synthesized. The formation of target compounds was confirmed by spectral characterization techniques such as IR, 1 H-NMR, 13 C-NMR, and elemental analysis. Among the synthesized derivatives, compound 8l was proved to be the most potent inhibitor with an IC50 value of 25.48±1.19 µM. Furthermore, the results of the molecular docking study showed that this compound fitted well in the active site of tyrosinase with the binding score of -10.72.


Asunto(s)
Agaricales , Monofenol Monooxigenasa , Inhibidores Enzimáticos/química , Hidrazinas , Cinética , Simulación del Acoplamiento Molecular , Estructura Molecular , Monofenol Monooxigenasa/metabolismo , Relación Estructura-Actividad
9.
Arch Pharm (Weinheim) ; 355(5): e2100313, 2022 May.
Artículo en Inglés | MEDLINE | ID: mdl-35132681

RESUMEN

A series of novel 4-phenylpiperazine-carbodithioate-N-phenylacetamide hybrids (6a-n) was designed, synthesized, and evaluated for their in vitro inhibitory activity against the metabolic enzymes, acetylcholinesterase (AChE), butyrylcholinesterase (BChE), and α-glucosidase. The obtained results showed that most of the synthesized compounds exhibited high to good anti-AChE and anti-BChE activity in the range of nanomolar concentrations in comparison to tacrine as a positive control. Molecular modeling of the most potent compounds 6e and 6i demonstrated that these compounds interacted with important residues of the AChE and BChE active sites. Moreover, all the newly synthesized compounds 6a-n had significant Ki values against α-glucosidase when compared with the positive control acarbose. Representatively, N-2-fluorophenylacetamide derivative 6l, with a Ki value of 0.98 nM as the most potent compound, was 126 times more potent than acarbose with a Ki value of 123.70 nM. This compound also fitted in the α-glucosidase active site and interacted with key residues. An in silico study of the druglikeness/absorption, distribution, metabolism, and excretion (ADME)/toxicity profile of the selected compounds 6e, 6i, and 6l predicts that these compounds are drug-like and have the appropriate properties in terms of ADME and toxicity.


Asunto(s)
Acetilcolinesterasa , Butirilcolinesterasa , Acarbosa , Acetanilidas , Acetilcolinesterasa/metabolismo , Butirilcolinesterasa/metabolismo , Inhibidores de la Colinesterasa/química , Inhibidores de la Colinesterasa/farmacología , Simulación del Acoplamiento Molecular , Piperazinas , Relación Estructura-Actividad , alfa-Glucosidasas/metabolismo
10.
Sci Rep ; 12(1): 2003, 2022 02 07.
Artículo en Inglés | MEDLINE | ID: mdl-35132095

RESUMEN

The present article describes the design, synthesis, in vitro urease inhibition, and in silico molecular docking studies of a novel series of nitrothiazolacetamide conjugated to different thioquinazolinones. Fourteen nitrothiazolacetamide bearing thioquinazolinones derivatives (8a-n) were synthesized through the reaction of isatoic anhydride with different amine, followed by reaction with carbon disulfide and KOH in ethanol. The intermediates were then converted into final products by treating them with 2-chloro-N-(5-nitrothiazol-2-yl)acetamide in DMF. All derivatives were then characterized through different spectroscopic techniques (1H, 13C-NMR, MS, and FTIR). In vitro screening of these molecules against urease demonstrated the potent urease inhibitory potential of derivatives with IC50 values ranging between 2.22 ± 0.09 and 8.43 ± 0.61 µM when compared with the standard thiourea (IC50 = 22.50 ± 0.44 µM). Compound 8h as the most potent derivative exhibited an uncompetitive inhibition pattern against urease in the kinetic study. The high anti-ureolytic activity of 8h was confirmed against two urease-positive microorganisms. According to molecular docking study, 8h exhibited several hydrophobic interactions with Lys10, Leu11, Met44, Ala47, Ala85, Phe87, and Pro88 residues plus two hydrogen bound interactions with Thr86. According to the in silico assessment, the ADME-Toxicity and drug-likeness profile of synthesized compounds were in the acceptable range.


Asunto(s)
Diseño de Fármacos , Inhibidores Enzimáticos , Quinazolinonas , Ureasa , Aminas/química , Disulfuro de Carbono/química , Simulación por Computador , Evaluación Preclínica de Medicamentos , Inhibidores Enzimáticos/síntesis química , Inhibidores Enzimáticos/farmacología , Etanol/química , Hidróxidos/química , Simulación del Acoplamiento Molecular , Oxazinas/química , Compuestos de Potasio/química , Ureasa/antagonistas & inhibidores , Quinazolinonas/síntesis química , Quinazolinonas/química , Quinazolinonas/farmacología
11.
Bioorg Chem ; 120: 105592, 2022 03.
Artículo en Inglés | MEDLINE | ID: mdl-35121554

RESUMEN

A series of 5-nitrofuran-2-yl-thiadiazole linked to different cyclohexyl-2-(phenylamino)acetamides were rationally designed and synthesized. All synthetic compounds were evaluated for their urease inhibitory activity and exhibited good inhibitory potential against urease with IC50 values in the range of 0.94 - 6.78 µM as compared to the standard thiourea (IC50 = 22.50 µM). Compound 8g (IC50 = 0.94 µM) with a thiophene substituent at the R2 position was found to be the most active member of the series. Kinetic studies exhibited that the compound 8g was a non-competitive inhibitor. In silicostudy showed the critical interactions of potent inhibitors with the active site of the enzyme. These newly identified inhibitors of the urease enzyme can serve as leads for further research and development.


Asunto(s)
Nitrofuranos , Tiadiazoles , Acetamidas , Biología Computacional , Inhibidores Enzimáticos/química , Cinética , Simulación del Acoplamiento Molecular , Relación Estructura-Actividad , Tiadiazoles/farmacología , Ureasa
12.
J Biomol Struct Dyn ; 40(8): 3359-3370, 2022 05.
Artículo en Inglés | MEDLINE | ID: mdl-33222620

RESUMEN

In the design of novel drugs, the formation of hybrid molecules via the combination of several pharmacophores can give rise to compounds with interesting biochemical profiles. A series of novel quinazolin-sulfonamid derivatives (9a-m) were synthesized, characterized and evaluated for their in vitro antidiabetic, anticholinergics, and antiepileptic activity. These synthesized novel quinazolin-sulfonamid derivatives (9a-m) were found to be effective inhibitor molecules for the α-glycosidase, human carbonic anhydrase I and II (hCA I and hCA II), butyrylcholinesterase (BChE) and acetylcholinesterase (AChE) enzyme, with Ki values in the range of 100.62 ± 13.68-327.94 ± 58.21 nM for α-glycosidase, 1.03 ± 0.11-14.87 ± 2.63 nM for hCA I, 1.83 ± 0.24-15.86 ± 2.57 nM for hCA II, 30.12 ± 3.81-102.16 ± 13.87 nM for BChE, and 26.16 ± 3.63-88.52 ± 20.11 nM for AChE, respectively. In the last step, molecular docking calculations were made to compare biological activities of molecules against enzymes which are achethylcholinesterase, butyrylcholinesterase and α-glycosidase.Communicated by Ramaswamy H. Sarma.


Asunto(s)
Acetilcolinesterasa , Butirilcolinesterasa , Acetilcolinesterasa/química , Butirilcolinesterasa/química , Inhibidores de la Colinesterasa/química , Glicósido Hidrolasas/metabolismo , Humanos , Simulación del Acoplamiento Molecular , Estructura Molecular , Relación Estructura-Actividad
13.
Adv Exp Med Biol ; 1387: 145-169, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-34961915

RESUMEN

Animal studies are recognized as a significant step forward in the bridging between drug discovery and clinical applications. Animal models, due to their relative genetic, molecular, physiological, and even anatomical similarities to humans, can provide a suitable platform for unraveling the mechanisms underlying human diseases and discovering new therapeutic approaches as well. Recently, zebrafish has attracted attention as a valuable experimental and pharmacological model in drug discovery and development studies due to its prominent characteristics such as the high degree of genetic similarity with humans, genetic manipulability, and prominent clinical features. Since advancing a theory to a valid and reliable observation requires the manipulation of animals, it is, therefore, essential to use efficient modeling methods appropriate to the different aspects of experimental conditions. In this context, applying several various approaches such as using chemicals, pathogens, and genetic manipulation approaches allows zebrafish development into a preferable model that mimics some human disease pathophysiology. Thus, such modeling approaches not only can provide a framework for a comprehensive understanding of the human disease mechanisms that have a counterpart in zebrafish but also can pave the way for discovering new drugs that are accompanied by higher amelioration effects on different human diseases.


Asunto(s)
Descubrimiento de Drogas , Pez Cebra , Animales , Modelos Animales de Enfermedad , Descubrimiento de Drogas/métodos , Humanos , Pez Cebra/genética
14.
Arch Pharm (Weinheim) ; 354(12): e2100179, 2021 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-34467580

RESUMEN

Thirteen new phenoxy-biscoumarin-N-phenylacetamide derivatives (7a-m) were designed based on a molecular hybridization approach as new α-glucosidase inhibitors. These compounds were synthesized with high yields and evaluated in vitro for their inhibitory activity against yeast α-glucosidase. The obtained results revealed that a significant proportion of the synthesized compounds showed considerable α-glucosidase-inhibitory activity in comparison to acarbose as a positive control. Representatively, 2-(4-(bis(4-hydroxy-2-oxo-2H-chromen-3-yl)methyl)phenoxy)-N-(4-bromophenyl)acetamide (7f), with IC50 = 41.73 ± 0.38 µM against α-glucosidase, was around 18 times more potent than acarbose (IC50 = 750.0 ± 10.0 µM). This compound was a competitive α-glucosidase inhibitor. Molecular modeling and dynamic simulation of these compounds confirmed the obtained results through in vitro experiments. Prediction of the druglikeness/ADME/toxicity of the compound 7f and comparison with the standard drug acarbose showed that the new compound 7f was probably better than the standard drug in terms of toxicity.


Asunto(s)
Acetanilidas/farmacología , Cumarinas/farmacología , Inhibidores de Glicósido Hidrolasas/farmacología , Acarbosa/farmacología , Acetanilidas/síntesis química , Acetanilidas/química , Animales , Células CACO-2 , Cumarinas/síntesis química , Cumarinas/química , Inhibidores de Glicósido Hidrolasas/síntesis química , Inhibidores de Glicósido Hidrolasas/química , Humanos , Concentración 50 Inhibidora , Ratones , Modelos Moleculares , Simulación del Acoplamiento Molecular , Ratas , Relación Estructura-Actividad
15.
Front Physiol ; 12: 705424, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34421642

RESUMEN

Diabetes and heart failure, as important global issues, cause substantial expenses to countries and medical systems because of the morbidity and mortality rates. Most people with diabetes suffer from type 2 diabetes, which has an amplifying effect on the prevalence and severity of many health problems such as stroke, neuropathy, retinopathy, kidney injuries, and cardiovascular disease. Type 2 diabetes is one of the cornerstones of heart failure, another health epidemic, with 44% prevalence. Therefore, finding and targeting specific molecular and cellular pathways involved in the pathophysiology of each disease, either in diagnosis or treatment, will be beneficial. For diabetic cardiomyopathy, there are several mechanisms through which clinical heart failure is developed; oxidative stress with mediation of reactive oxygen species (ROS), reduced myocardial perfusion due to endothelial dysfunction, autonomic dysfunction, and metabolic changes, such as impaired glucose levels caused by insulin resistance, are the four main mechanisms. In the field of oxidative stress, advanced glycation end products (AGEs), protein kinase C (PKC), and nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) are the key mediators that new omics-driven methods can target. Besides, diabetes can affect myocardial function by impairing calcium (Ca) homeostasis, the mechanism in which reduced protein phosphatase 1 (PP1), sarcoplasmic/endoplasmic reticulum Ca2+ ATPase 2a (SERCA2a), and phosphorylated SERCA2a expressions are the main effectors. This article reviewed the recent omics-driven discoveries in the diagnosis and treatment of type 2 diabetes and heart failure with focus on the common molecular mechanisms.

16.
Med Chem ; 17(3): 264-272, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-32851964

RESUMEN

BACKGROUND: α-Glucosidase is a hydrolyzing enzyme that plays a crucial role in the degradation of carbohydrates and starch to glucose. Hence, α-glucosidase is an important target in carbohydrate mediated diseases such as diabetes mellitus. OBJECTIVE: In this study, novel coumarin containing dithiocarbamate derivatives 4a-n were synthesized and evaluated against α-glucosidase in vitro and in silico. METHODS: These compounds were obtained from the reaction between 4-(bromomethyl)-7- methoxy-2H-chromen-2-one 1, carbon disulfide 2, and primary or secondary amines 3a-n in the presence of potassium hydroxide and ethanol at room temperature. In vitro α-glucosidase inhibition and kinetic study of these compounds were performed. Furthermore, a docking study of the most potent compounds was also performed by Auto Dock Tools (version 1.5.6). RESULTS: Obtained results showed that all the synthesized compounds exhibited prominent inhibitory activities (IC50 = 85.0 ± 4.0-566.6 ± 8.6 µM) in comparison to acarbose as a standard inhibitor (IC50 = 750.0 ± 9.0 µM). Among them, the secondary amine derivative 4d with pendant indole group was the most potent inhibitor. Enzyme kinetic study of the compound 4d revealed that this compound competes with a substrate to connect to the active site of α-glucosidase and therefore is a competitive inhibitor. Moreover, a molecular docking study predicted that this compound interacted with the α-glucosidase active site pocket. CONCLUSION: Our results suggest that the coumarin-dithiocarbamate scaffold can be a promising lead structure for designing potent α-glucosidase inhibitors for the treatment of type 2 diabetes.


Asunto(s)
Cumarinas/química , Diabetes Mellitus Tipo 2/tratamiento farmacológico , Inhibidores de Glicósido Hidrolasas/química , Inhibidores de Glicósido Hidrolasas/farmacología , Tiocarbamatos/química , Tiocarbamatos/farmacología , alfa-Glucosidasas/metabolismo , Simulación por Computador , Diabetes Mellitus Tipo 2/enzimología , Inhibidores de Glicósido Hidrolasas/síntesis química , Inhibidores de Glicósido Hidrolasas/metabolismo , Cinética , Simulación del Acoplamiento Molecular , Conformación Proteica , Relación Estructura-Actividad , Tiocarbamatos/síntesis química , Tiocarbamatos/metabolismo , alfa-Glucosidasas/química
17.
Mol Divers ; 25(2): 877-888, 2021 May.
Artículo en Inglés | MEDLINE | ID: mdl-32189236

RESUMEN

Fourteen novel 4,5-diphenyl-imidazol-1,2,3-triazole hybrids 8a-n were synthesized with good yields by performing click reaction between the 4,5-diphenyl-2-(prop-2-yn-1-ylthio)-1H-imidazole and various benzyl azides. The synthesized compounds 8a-n were evaluated against yeast α-glucosidase, and all these compounds exhibited excellent inhibitory activity (IC50 values in the range of 85.6 ± 0.4-231.4 ± 1.0 µM), even much more potent than standard drug acarbose (IC50 = 750.0 µM). Among them, 4,5-diphenyl-imidazol-1,2,3-triazoles possessing 2-chloro and 2-bromo-benzyl moieties (compounds 8g and 8i) demonstrated the most potent inhibitory activities toward α-glucosidase. The kinetic study of the compound 8g revealed that this compound inhibited α-glucosidase in a competitive mode. Furthermore, docking calculations of these compounds were performed to predict the interaction mode of the synthesized compounds in the active site of α-glucosidase. A novel series of 4,5-diphenyl-imidazol-1,2,3-triazole hybrids 8a-n was synthesized with good yields by performing click reaction between the 4,5-diphenyl-2-(prop-2-yn-1-ylthio)-1Himidazole and various benzyl azides. The synthesized compounds 8a-n were evaluated against yeast α-glucosidase and all these compounds exhibited excellent inhibitory activity (IC50 values in the range of 85.6 ± 0.4-231.4 ± 1.0 µM), even much more potent than standard drug acarbose (IC50 = 750.0 µM).


Asunto(s)
Hipoglucemiantes , Imidazoles , Triazoles , alfa-Glucosidasas/química , Diseño de Fármacos , Hipoglucemiantes/síntesis química , Hipoglucemiantes/química , Hipoglucemiantes/farmacocinética , Hipoglucemiantes/toxicidad , Imidazoles/síntesis química , Imidazoles/química , Imidazoles/farmacocinética , Imidazoles/toxicidad , Cinética , Modelos Biológicos , Simulación del Acoplamiento Molecular , Triazoles/síntesis química , Triazoles/química , Triazoles/farmacocinética , Triazoles/toxicidad
18.
Mol Divers ; 25(4): 2571-2604, 2021 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-32734589

RESUMEN

Thiophene-based analogs have been fascinated by a growing number of scientists as a potential class of biologically active compounds. Furthermore, they play a vital role for medicinal chemists to improve advanced compounds with a variety of biological effects. The current review envisioned to highlight some recent and particularly remarkable examples of the synthesis of thiophene derivatives by heterocyclization of various substrates from 2012 on.


Asunto(s)
Tiofenos
19.
J Biochem Mol Toxicol ; 35(4): e22688, 2021 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-33368871

RESUMEN

A series of new benzofuran-1,3,4-oxadiazole containing 1,2,3-triazole-acetamides 12a-n as potential anti-α-glucosidase agents were designed and synthesized. α-Glucosidase inhibition assay demonstrated that all the synthesized compounds 12a-n (half-maximal inhibitory concentration [IC50 ] values in the range of 40.7 ± 0.3-173.6 ± 1.9 µM) were more potent than standard inhibitor acarbose (IC50 = 750.0 ± 12.5 µM). Among them, the most potent compound was compound 12c, with inhibitory activity around 19-fold higher than acarbose. Since the most potent compound inhibited α-glucosidase in a competitive mode, a docking study of this compound was also performed into the active site of α-glucosidase. In vitro and in silico toxicity assays of the title compounds were also performed.


Asunto(s)
Acetamidas , Inhibidores de Glicósido Hidrolasas , Oxadiazoles , Proteínas de Saccharomyces cerevisiae , Saccharomyces cerevisiae/enzimología , alfa-Glucosidasas/química , Acetamidas/síntesis química , Acetamidas/química , Inhibidores de Glicósido Hidrolasas/síntesis química , Inhibidores de Glicósido Hidrolasas/química , Oxadiazoles/síntesis química , Oxadiazoles/química , Proteínas de Saccharomyces cerevisiae/antagonistas & inhibidores , Proteínas de Saccharomyces cerevisiae/química
20.
Res Pharm Sci ; 15(3): 226-240, 2020 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-33088323

RESUMEN

BACKGROUND AND PURPOSE: Aberrant signaling by oncogenic RAS proteins occurs in almost all human tumors. One of the promising strategies to overcome such cancers is the inhibition of KRAS protein, a subtype of RAS family involved in cell growth, differentiation, and apoptosis, through preventing its effector, SOS1, from being attached to the protein. EXPERIMNTAL APPROACH: Herein, a virtual screening process was performed using pharmacophore search, molecular docking, and molecular dynamic simulations. A pharmacophore model was created to indicate essential features for a KRAS inhibitor and used for screening the National Cancer Institution (NCI) database to retrieve similar compounds to the pharmacophore model with more than 70% similarity. Chosen compounds were then docked into KRAS and four compounds were selected based on the highest binding scores. Next, a similarity search was done in the whole PubChem database to increase the number of potential inhibitors. The filtered compounds were docked again into KRAS and three of them were selected for molecular dynamic simulation. FINDINGS / RESULTS: Compounds 1a, 2d, and 3a can inhibit SOS-iKRASG12D interaction due to the higher number of interactions with the protein. Moreover, they achieved the equilibrium faster than the approved inhibitor. CONCLUSION AND IMPLICATIONS: Auriculasin, a polyphenol flavonoid, can be considered as a potential inhibitor of SOS1-KRAS interaction. This compound seems to be a stronger anticancer than 9LI, a known inhibitor of KRAS, due to its better docking scores. Moreover, this compound can be an appropriate candidate to be formulated as an oral drug.

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