Elshaymaa Elmongy - Academia.edu (original) (raw)
Papers by Elshaymaa Elmongy
Chemico-Biological Interactions
International Journal of Molecular Sciences
This work describes the design and synthesis of new hybrids of thienopyrimidine and sulfonamides.... more This work describes the design and synthesis of new hybrids of thienopyrimidine and sulfonamides. The binding affinity of the prepared compounds to FGFR-1 enzyme and caspase-3 was investigated via molecular docking. The cytotoxic effect was estimated for the synthesized compounds against human breast cancer cell lines (MCF-7 and MDA-MB231) using Doxorubicin as a reference. All the tested compounds exhibited moderate to excellent anticancer efficacy against both tested cell lines, among which 3b and 4bi were the best. All the synthesized compounds exhibited distinguishing selectivity index values greater than Doxorubicin. The influence of the new hybrids under inquiry was further examined on both FGFR-1 and Caspase-3. The results revealed that compound 3b showed observed concordance between anti-proliferative activity and Caspase-3 activity. In respect to the compounds’ effect on the apoptosis, compound 3b significantly increased the population of late apoptotic cells and necrotic ce...
![Research paper thumbnail of In Silico Evaluation of a Promising Key Intermediate Thieno [2,3-d] Pyrimidine Derivative with Expected JAK2 Kinase Inhibitory Activity](https://attachments.academia-assets.com/105790730/thumbnails/1.jpg)
](Molbank, 2022
This work describes the synthesis and the cytotoxic evaluation of thiophene and thienopyrimidine ... more This work describes the synthesis and the cytotoxic evaluation of thiophene and thienopyrimidine derivatives. The investigated compound was subjected to target prediction that indicated its high affinity to kinases and to Janus kinase 2 (JAK2) specifically. Molecular docking screening was performed on three different JAK2 proteins downloaded from the Protein Data Bank (PDB: 5AEP, 4C62 and 3ZMM). In vitro kinase inhibitory activity was evaluated and then compound cytotoxicity was performed on three different cancerous cell lines (HT-29, HepG-2, and MCF-7). Marked cytotoxic activity of the thienopyrimidine derivative against the HepG-2 cell line was demonstrated, reflected by its IC50 value of 8.001 ± 0.0445 μM, which is better than that of the reference standard (IC50 13.91 ± 2.170 μM). Pharmacokinetic studies revealed good well permeability and GI absorption with no violations against Lipinski’s rule.
Molecules, 2022
The acute inflammation process is explained by numerous hypotheses, including oxidative stress, e... more The acute inflammation process is explained by numerous hypotheses, including oxidative stress, enzyme stimulation, and the generation of pro-inflammatory cytokines. The anti-inflammatory activity of Yucca gigantea methanol extract (YGME) against carrageenan-induced acute inflammation and possible underlying mechanisms was investigated. The phytochemical profile, cytotoxic, and antimicrobial activities were also explored. LC-MS/MS was utilized to investigate the chemical composition of YGME, and 29 compounds were tentatively identified. In addition, the isolation of luteolin-7-O-β-d-glucoside, apigenin-7-O-β-d-glucoside, and kaempferol-3-O-α-l-rhamnoside was performed for the first time from the studied plant. Inflammation was induced by subcutaneous injection of 100 μL of 1% carrageenan sodium. Rats were treated orally with YGME 100, 200 mg/kg, celecoxib (50 mg/kg), and saline, respectively, one hour before carrageenan injection. The average volume of paws edema and weight were mea...
Pharmaceuticals, 2022
The present investigation describes the design strategy and synthesis of novel thienopyrimidine c... more The present investigation describes the design strategy and synthesis of novel thienopyrimidine compounds in addition to their anticancer activity targeting tyrosine kinase FLT3 enzyme. The synthesized compounds were subjected to a cytotoxic study where compounds 9a and 9b showed the most potent cytotoxicity against HT-29, HepG-2, and MCF-7 cell lines reflected by their IC50 values for 9a (1.21 ± 0.34, 6.62 ± 0.7 and 7.2 ± 1.9 μM), for 9b (0.85 ± 0.16, 9.11 ± 0.3 and 16.26 ± 2.3 μM) and better than that of reference standard which recorded (1.4 ± 1.16, 13.915 ± 2.2, and 8.43 ± 0.5 μM), respectively. Compounds’ selectivity to malignant cells was determined using selectivity assay, interestingly, all the tested compounds demonstrated an excellent selectivity index (SI) range from 20.2 to 99.7. Target in-silico prediction revealed the FLT3 kinase enzyme was the kinase enzyme of highest probability. Molecular docking studies were performed on the prepared compounds which showed promisin...
Molecules, 2022
Monterey cypress (Cupressus macrocarpa) is a decorative plant; however, it possesses various phar... more Monterey cypress (Cupressus macrocarpa) is a decorative plant; however, it possesses various pharmacological activities. Therefore, we explored the phytochemical profile of C. macrocarpa root methanol extract (CRME) for the first time. Moreover, we investigated its antidiarrheal (in vivo), antibacterial, and antibiofilm (in vitro) activities against Salmonella enterica clinical isolates. The LC-ESI-MS/MS analysis of CRME detected the presence of 39 compounds, besides isolation of 2,3,2″,3″-tetrahydro-4′-O-methyl amentoflavone, amentoflavone, and dihydrokaempferol-3-O-α-l-rhamnoside for the first time. Dihydrokaempferol-3-O-α-l-rhamnoside presented the highest antimicrobial activity and the range of values of MICs against S. enterica isolates was from 64 to 256 µg/mL. The antidiarrheal activity of CRME was investigated by induction of diarrhea using castor oil, and exhibited a significant reduction in diarrhea and defecation frequency at all doses, enteropooling (at 400 mg/kg), and g...
Antibiotics, 2021
Methicillin-resistant Staphylococcus aureus (MRSA) is an important human pathogen that causes var... more Methicillin-resistant Staphylococcus aureus (MRSA) is an important human pathogen that causes various infections. The increasing resistance of MRSA to different antibiotics is widely spreading; therefore, plant extracts may be novel therapeutic alternatives. The phytochemical profiling of Cupressus macrocarpa Hartw. ex Gordon leaves in vitro, and in vivo, antimicrobial potential of its extracts against MRSA clinical isolates were explored. A phytochemical tentative identification of 49 compounds was performed in the leaves using LC-ESI-MS/MS; in addition, isolation, and structure elucidation of hesperidin and eriocitrin were achieved for the first time. The diethyl ether extract (DEEL) exhibited the best antibacterial effect with MIC values ranging from 2 to 8 µg/mL, which significantly reduced the growth and efflux activity in 48.78% and 29.26% of isolates, respectively. qRT-PCR showed a significant down expression of norA and norB genes, which significantly affected the bacterial ...
Pharmaceuticals, 2021
The global emergence of the COVID-19 pandemic caused by severe acute respiratory syndrome coronav... more The global emergence of the COVID-19 pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has focused the entire world’s attention toward searching for a potential remedy for this disease. Thus, we investigated the antiviral activity of Agrimonia pilosa ethanol extract (APEE) against SARS-CoV-2 and it exhibited a potent antiviral activity with IC50 of 1.1 ± 0.03 µg/mL. Its mechanism of action was elucidated, and it exhibited a virucidal activity and an inhibition of viral adsorption. Moreover, it presented an immunomodulatory activity as it decreased the upregulation of gene expression of COX-2, iNOS, IL-6, TNF-α, and NF-κB in lipopolysaccharide (LPS)-induced peripheral blood mononuclear cells. A comprehensive analysis of the phytochemical fingerprint of APEE was conducted using LC-ESI-MS/MS technique for the first time. We detected 81 compounds and most of them belong to the flavonoid and coumarin classes. Interestingly, isoflavonoids, procyanidins, and a...
This work describes anticancer and antioxidant biological testing for new derived compounds form ... more This work describes anticancer and antioxidant biological testing for new derived compounds form cycloheptathienopyrimidine nucleus along with their synthetic approach. The anticancer activity was tested against cancerous human breast cells MCF-7 and human liver cancer cell line HEPG-2 in reference to Doxorubicin. All the tested products showed significant cytotoxic activity. Six out of twelve tested compounds showed anticancer activity even more than that of reference standard Doxorubicin against MCF-7 cell line whereas, eight compounds declared cytotoxic effect more than the reference standard against cell line HEPG-2 reflected by their IC50S. Furthermore, six of the top ranked anticancer results were tested for their antioxidant effect with DPPH method in reference to Ascorbic acid, three of which gave 100% free radical scavenging activity.
Antibiotics, 2021
Boswellia sacra Flueck. oleoresin extract (frankincense) has traditionally been used in the treat... more Boswellia sacra Flueck. oleoresin extract (frankincense) has traditionally been used in the treatment of different diseases, but there are no sufficient studies on its potential activity against periodontal pathogens. Therefore, antibacterial and antibiofilm activity of frankincense extract against Porphyromonas gingivalis clinical isolates were studied. The phytochemical composition of the volatile components of the extract was identified by GC-MS analysis revealing 49 compounds as trans-nerolidyl formate, cycloartenol acetate, ursenoic acid 3-oxomethyl ester, bisabolene epoxide, and kaur-16-ene. It decreased the growth and increased the leakage of nucleotides in 58.3% and 33.3% of isolates, respectively. Additionally, it reduced the extracellular polysaccharide production and the cell surface hydrophobicity in 41.67% and 50% of the isolates, respectively. Crystal violet assay revealed inhibition of biofilm formation by the tested isolates. Light microscope and scanning electron mi...
![Research paper thumbnail of In Vitro and In Vivo Antitumor Activity of Indolo[2,3-b] Quinolines, Natural Product Analogs from Neocryptolepine Alkaloid](https://attachments.academia-assets.com/105790723/thumbnails/1.jpg)
](Molecules, 2021
Neocryptolepine (5-methyl-5H-indolo[2,3-b] quinoline) analogs were synthesized and evaluated in v... more Neocryptolepine (5-methyl-5H-indolo[2,3-b] quinoline) analogs were synthesized and evaluated in vitro and in vivo for their effect versus Ehrlich ascites carcinoma (EAC). The analogs showed stronger cytotoxic activity against EAC cells than the reference drug. The in vivo evaluation of the target compounds against EAC-induced solid tumor in the female albino Swiss mice revealed a remarkable decrease in the tumor volume (TV) and hepatic lipid peroxidation. A noticeable increase of both superoxide dismutase (SOD) and catalase (CAT) levels was reported (p < 0.001), which set-forth proof of their antioxidant effect. In addition, the in vitro antioxidant activity of the neocryptolepine analogs was screened out using the DPPH method and showed promising activities activity. The histopathological investigations affirmed that the tested analogs have a remarkable curative effect on solid tumors with minimal side-effect on the liver. The study also includes illustrated mechanism of the ant...
Pharmaceutics
Newly synthesized mono- and bis-thioureidophosphonate (MTP and BTP) analogues in eco-friendly con... more Newly synthesized mono- and bis-thioureidophosphonate (MTP and BTP) analogues in eco-friendly conditions were employed as reducing/capping cores for 100, 500, and 1000 mg L−1 of silver nitrate. The physicochemical properties of silver nanocomposites (MTP(BTP)/Ag NCs) were fully elucidated using spectroscopic and microscopic tools. The antibacterial activity of the nanocomposites was screened against six multidrug-resistant pathogenic strains, comparable to ampicillin and ciprofloxacin commercial drugs. The antibacterial performance of BTP was more substantial than MTP, notably with the best minimum inhibitory concentration (MIC) of 0.0781 mg/mL towards Bacillus subtilis, Salmonella typhi, and Pseudomonas aeruginosa. Among all, BTP provided the clearest zone of inhibition (ZOI) of 35 ± 1.00 mm against Salmonella typhi. After the dispersion of silver nanoparticles (AgNPs), MTP/Ag NCs offered dose-dependently distinct advantages over the same nanoparticle with BTP; a more noteworthy de...
Cells, Mar 27, 2023
This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY
Pharmaceutics
This work describes the synthesis of quinoline-based N--heterocyclic arenes and their biological ... more This work describes the synthesis of quinoline-based N--heterocyclic arenes and their biological evaluation as molluscicides against adult Biomophalaria alexandrina snails as well as larvicides against Schistosoma mansoni larvae (miracidia and cercariae). Molecular docking studies were demonstrated to investigate their affinity for cysteine protease protein as an interesting target for antiparasitics. Compound AEAN showed the best docking results followed by APAN in comparison to the co-crystallized ligand D1R reflected by their binding affinities and RMSD values. The egg production, hatchability of B. alexandrina snails and ultrastructural topography of S. mansoni cercariae using SEM were assessed. Biological evaluations (hatchability and egg-laying capacity) revealed that the quinoline hydrochloride salt CAAQ was the most effective compound against adult B. alexandrina snails, whereas the indolo-quinoline derivative APAN had the most efficiency against miracidia, and the acridinyl...
Biomedicines
Background: Hepatocellular carcinoma (HCC) is the most common histologic type of primary liver ca... more Background: Hepatocellular carcinoma (HCC) is the most common histologic type of primary liver cancers worldwide. Hepatitis C virus (HCV) infection remains a major risk factor for chronic liver disease, cirrhosis, and HCC. To understand the molecular pathogenesis of HCC in chronic HCV infection, many molecular markers are extensively studied, including long noncoding RNAs (lncRNA). Objective: To evaluate the expression levels of lncRNAs (LINC01564, RAMS11), CBX4, and TOP2A in patients with chronic HCV infection and patients with HCC on top of chronic HCV infection and correlate these levels with the clinicopathological features of HCC. Subjects and Methods: One hundred and fifty subjects were enrolled in this study and divided into three groups: group I included 50 patients with HCC on top of chronic hepatitis C (CHC), group II included 50 patients with CHC only, and group III included 50 healthy individuals as a control group. LncRNAs relative expression level was determined by RT-...
Antibiotics
Isatin–quinoline conjugates 10a–f and 11a–f were assembled by the reaction of N-(bromobutyl) isat... more Isatin–quinoline conjugates 10a–f and 11a–f were assembled by the reaction of N-(bromobutyl) isatin derivatives 3a, b with aminoquinolines 6a–c and their corresponding hydrazinyl 9a–c in good yields. The structures of the resulting conjugates were established by spectroscopic tools and showed data consistent with the proposed structures. In vitro antibacterial activity against different bacterial strains was evaluated. All tested conjugates showed significant biocidal activity with lower MIC than the first line drugs chloramphenicol and ampicillin. Conjugates 10a, 10b and 10f displayed the most potent activity against all clinical isolates. The antibiofilm activity for all tested conjugates was screened against the reference drug vancomycin using the MRSA strain. The results revealed that all conjugates had an inhibitory activity against biofilm formation and conjugate. Conjugate 11a showed 83.60% inhibition at 10 mg/mL. In addition, TEM studies were used to prove the mechanism of a...
Journal of Heterocyclic Chemistry, May 31, 2016
This investigation describes the design of a series of cycloheptathieno[2,3-d]pyrimidines along w... more This investigation describes the design of a series of cycloheptathieno[2,3-d]pyrimidines along with their synthetic strategy. The target compounds were screened for their PARP-1 inhibitory activity. The modeling study declared that most of the docked compounds showed the same interactions as 3-aminobenzamide, where Gly 894, His 862, Tyr 896, Arg 878, and Ser 864 were the main residues involved in hydrogen bond formation. Compounds eliciting the top ranked docking results were screened for their PARP-1 inhibitory activity giving promising results, and three representative compounds were tested for their cytotoxic activity using Doxorubicin as a reference standard. The target compounds including cyclohepta[b]thiophene and pentahydrocycloheptathieno[2,3-d]pyrimidine cores were designed, prepared, and tested for their PARP-1 inhibitory activity. Compounds (R: ―NHC(S)NH2) and (R: ―CS) were the most potent ones.
Egyptian Journal of Chemistry, 2021
Antioxidants are one of major defenses against toxicity caused by free radicals which makes them ... more Antioxidants are one of major defenses against toxicity caused by free radicals which makes them effective in the prevention and treatment of diseases, like atherosclerosis, stroke, diabetes, Alzheimer's disease, and cancer. The present study discusses the design and synthesis of a new series of cycloheptathiophene/ thienopyrimidine derivatives along with their antioxidant biological evaluation. Virtual screening was performed to build a pharmacophore model based on reported natural active antioxidant compound. All resulted outputs were carefully analyzed for the best matched hits. Moreover, molecular docking was done at the active site of tyrosinase as a predictive tool for exploring the biological activity of the targeted compounds. Free radical scavenging activity was measured using DPPH method in reference to Ascorbic acid. Six out of fifteen synthesized compounds showed more significant antioxidant activity than that recorded by the reference standard.
Journal of Heterocyclic Chemistry, 2016
This investigation describes the design of a series of cycloheptathieno[2,3-d]pyrimidines along w... more This investigation describes the design of a series of cycloheptathieno[2,3-d]pyrimidines along with their synthetic strategy. The target compounds were screened for their PARP-1 inhibitory activity. The modeling study declared that most of the docked compounds showed the same interactions as 3-aminobenzamide, where Gly 894, His 862, Tyr 896, Arg 878, and Ser 864 were the main residues involved in hydrogen bond formation. Compounds eliciting the top ranked docking results were screened for their PARP-1 inhibitory activity giving promising results, and three representative compounds were tested for their cytotoxic activity using Doxorubicin as a reference standard. The target compounds including cyclohepta[b]thiophene and pentahydrocycloheptathieno[2,3-d]pyrimidine cores were designed, prepared, and tested for their PARP-1 inhibitory activity. Compounds (R: ―NHC(S)NH2) and (R: ―CS) were the most potent ones.
Chemico-Biological Interactions
International Journal of Molecular Sciences
This work describes the design and synthesis of new hybrids of thienopyrimidine and sulfonamides.... more This work describes the design and synthesis of new hybrids of thienopyrimidine and sulfonamides. The binding affinity of the prepared compounds to FGFR-1 enzyme and caspase-3 was investigated via molecular docking. The cytotoxic effect was estimated for the synthesized compounds against human breast cancer cell lines (MCF-7 and MDA-MB231) using Doxorubicin as a reference. All the tested compounds exhibited moderate to excellent anticancer efficacy against both tested cell lines, among which 3b and 4bi were the best. All the synthesized compounds exhibited distinguishing selectivity index values greater than Doxorubicin. The influence of the new hybrids under inquiry was further examined on both FGFR-1 and Caspase-3. The results revealed that compound 3b showed observed concordance between anti-proliferative activity and Caspase-3 activity. In respect to the compounds’ effect on the apoptosis, compound 3b significantly increased the population of late apoptotic cells and necrotic ce...
Molbank, 2022
This work describes the synthesis and the cytotoxic evaluation of thiophene and thienopyrimidine ... more This work describes the synthesis and the cytotoxic evaluation of thiophene and thienopyrimidine derivatives. The investigated compound was subjected to target prediction that indicated its high affinity to kinases and to Janus kinase 2 (JAK2) specifically. Molecular docking screening was performed on three different JAK2 proteins downloaded from the Protein Data Bank (PDB: 5AEP, 4C62 and 3ZMM). In vitro kinase inhibitory activity was evaluated and then compound cytotoxicity was performed on three different cancerous cell lines (HT-29, HepG-2, and MCF-7). Marked cytotoxic activity of the thienopyrimidine derivative against the HepG-2 cell line was demonstrated, reflected by its IC50 value of 8.001 ± 0.0445 μM, which is better than that of the reference standard (IC50 13.91 ± 2.170 μM). Pharmacokinetic studies revealed good well permeability and GI absorption with no violations against Lipinski’s rule.
Molecules, 2022
The acute inflammation process is explained by numerous hypotheses, including oxidative stress, e... more The acute inflammation process is explained by numerous hypotheses, including oxidative stress, enzyme stimulation, and the generation of pro-inflammatory cytokines. The anti-inflammatory activity of Yucca gigantea methanol extract (YGME) against carrageenan-induced acute inflammation and possible underlying mechanisms was investigated. The phytochemical profile, cytotoxic, and antimicrobial activities were also explored. LC-MS/MS was utilized to investigate the chemical composition of YGME, and 29 compounds were tentatively identified. In addition, the isolation of luteolin-7-O-β-d-glucoside, apigenin-7-O-β-d-glucoside, and kaempferol-3-O-α-l-rhamnoside was performed for the first time from the studied plant. Inflammation was induced by subcutaneous injection of 100 μL of 1% carrageenan sodium. Rats were treated orally with YGME 100, 200 mg/kg, celecoxib (50 mg/kg), and saline, respectively, one hour before carrageenan injection. The average volume of paws edema and weight were mea...
Pharmaceuticals, 2022
The present investigation describes the design strategy and synthesis of novel thienopyrimidine c... more The present investigation describes the design strategy and synthesis of novel thienopyrimidine compounds in addition to their anticancer activity targeting tyrosine kinase FLT3 enzyme. The synthesized compounds were subjected to a cytotoxic study where compounds 9a and 9b showed the most potent cytotoxicity against HT-29, HepG-2, and MCF-7 cell lines reflected by their IC50 values for 9a (1.21 ± 0.34, 6.62 ± 0.7 and 7.2 ± 1.9 μM), for 9b (0.85 ± 0.16, 9.11 ± 0.3 and 16.26 ± 2.3 μM) and better than that of reference standard which recorded (1.4 ± 1.16, 13.915 ± 2.2, and 8.43 ± 0.5 μM), respectively. Compounds’ selectivity to malignant cells was determined using selectivity assay, interestingly, all the tested compounds demonstrated an excellent selectivity index (SI) range from 20.2 to 99.7. Target in-silico prediction revealed the FLT3 kinase enzyme was the kinase enzyme of highest probability. Molecular docking studies were performed on the prepared compounds which showed promisin...
Molecules, 2022
Monterey cypress (Cupressus macrocarpa) is a decorative plant; however, it possesses various phar... more Monterey cypress (Cupressus macrocarpa) is a decorative plant; however, it possesses various pharmacological activities. Therefore, we explored the phytochemical profile of C. macrocarpa root methanol extract (CRME) for the first time. Moreover, we investigated its antidiarrheal (in vivo), antibacterial, and antibiofilm (in vitro) activities against Salmonella enterica clinical isolates. The LC-ESI-MS/MS analysis of CRME detected the presence of 39 compounds, besides isolation of 2,3,2″,3″-tetrahydro-4′-O-methyl amentoflavone, amentoflavone, and dihydrokaempferol-3-O-α-l-rhamnoside for the first time. Dihydrokaempferol-3-O-α-l-rhamnoside presented the highest antimicrobial activity and the range of values of MICs against S. enterica isolates was from 64 to 256 µg/mL. The antidiarrheal activity of CRME was investigated by induction of diarrhea using castor oil, and exhibited a significant reduction in diarrhea and defecation frequency at all doses, enteropooling (at 400 mg/kg), and g...
Antibiotics, 2021
Methicillin-resistant Staphylococcus aureus (MRSA) is an important human pathogen that causes var... more Methicillin-resistant Staphylococcus aureus (MRSA) is an important human pathogen that causes various infections. The increasing resistance of MRSA to different antibiotics is widely spreading; therefore, plant extracts may be novel therapeutic alternatives. The phytochemical profiling of Cupressus macrocarpa Hartw. ex Gordon leaves in vitro, and in vivo, antimicrobial potential of its extracts against MRSA clinical isolates were explored. A phytochemical tentative identification of 49 compounds was performed in the leaves using LC-ESI-MS/MS; in addition, isolation, and structure elucidation of hesperidin and eriocitrin were achieved for the first time. The diethyl ether extract (DEEL) exhibited the best antibacterial effect with MIC values ranging from 2 to 8 µg/mL, which significantly reduced the growth and efflux activity in 48.78% and 29.26% of isolates, respectively. qRT-PCR showed a significant down expression of norA and norB genes, which significantly affected the bacterial ...
Pharmaceuticals, 2021
The global emergence of the COVID-19 pandemic caused by severe acute respiratory syndrome coronav... more The global emergence of the COVID-19 pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has focused the entire world’s attention toward searching for a potential remedy for this disease. Thus, we investigated the antiviral activity of Agrimonia pilosa ethanol extract (APEE) against SARS-CoV-2 and it exhibited a potent antiviral activity with IC50 of 1.1 ± 0.03 µg/mL. Its mechanism of action was elucidated, and it exhibited a virucidal activity and an inhibition of viral adsorption. Moreover, it presented an immunomodulatory activity as it decreased the upregulation of gene expression of COX-2, iNOS, IL-6, TNF-α, and NF-κB in lipopolysaccharide (LPS)-induced peripheral blood mononuclear cells. A comprehensive analysis of the phytochemical fingerprint of APEE was conducted using LC-ESI-MS/MS technique for the first time. We detected 81 compounds and most of them belong to the flavonoid and coumarin classes. Interestingly, isoflavonoids, procyanidins, and a...
This work describes anticancer and antioxidant biological testing for new derived compounds form ... more This work describes anticancer and antioxidant biological testing for new derived compounds form cycloheptathienopyrimidine nucleus along with their synthetic approach. The anticancer activity was tested against cancerous human breast cells MCF-7 and human liver cancer cell line HEPG-2 in reference to Doxorubicin. All the tested products showed significant cytotoxic activity. Six out of twelve tested compounds showed anticancer activity even more than that of reference standard Doxorubicin against MCF-7 cell line whereas, eight compounds declared cytotoxic effect more than the reference standard against cell line HEPG-2 reflected by their IC50S. Furthermore, six of the top ranked anticancer results were tested for their antioxidant effect with DPPH method in reference to Ascorbic acid, three of which gave 100% free radical scavenging activity.
Antibiotics, 2021
Boswellia sacra Flueck. oleoresin extract (frankincense) has traditionally been used in the treat... more Boswellia sacra Flueck. oleoresin extract (frankincense) has traditionally been used in the treatment of different diseases, but there are no sufficient studies on its potential activity against periodontal pathogens. Therefore, antibacterial and antibiofilm activity of frankincense extract against Porphyromonas gingivalis clinical isolates were studied. The phytochemical composition of the volatile components of the extract was identified by GC-MS analysis revealing 49 compounds as trans-nerolidyl formate, cycloartenol acetate, ursenoic acid 3-oxomethyl ester, bisabolene epoxide, and kaur-16-ene. It decreased the growth and increased the leakage of nucleotides in 58.3% and 33.3% of isolates, respectively. Additionally, it reduced the extracellular polysaccharide production and the cell surface hydrophobicity in 41.67% and 50% of the isolates, respectively. Crystal violet assay revealed inhibition of biofilm formation by the tested isolates. Light microscope and scanning electron mi...
Molecules, 2021
Neocryptolepine (5-methyl-5H-indolo[2,3-b] quinoline) analogs were synthesized and evaluated in v... more Neocryptolepine (5-methyl-5H-indolo[2,3-b] quinoline) analogs were synthesized and evaluated in vitro and in vivo for their effect versus Ehrlich ascites carcinoma (EAC). The analogs showed stronger cytotoxic activity against EAC cells than the reference drug. The in vivo evaluation of the target compounds against EAC-induced solid tumor in the female albino Swiss mice revealed a remarkable decrease in the tumor volume (TV) and hepatic lipid peroxidation. A noticeable increase of both superoxide dismutase (SOD) and catalase (CAT) levels was reported (p < 0.001), which set-forth proof of their antioxidant effect. In addition, the in vitro antioxidant activity of the neocryptolepine analogs was screened out using the DPPH method and showed promising activities activity. The histopathological investigations affirmed that the tested analogs have a remarkable curative effect on solid tumors with minimal side-effect on the liver. The study also includes illustrated mechanism of the ant...
Pharmaceutics
Newly synthesized mono- and bis-thioureidophosphonate (MTP and BTP) analogues in eco-friendly con... more Newly synthesized mono- and bis-thioureidophosphonate (MTP and BTP) analogues in eco-friendly conditions were employed as reducing/capping cores for 100, 500, and 1000 mg L−1 of silver nitrate. The physicochemical properties of silver nanocomposites (MTP(BTP)/Ag NCs) were fully elucidated using spectroscopic and microscopic tools. The antibacterial activity of the nanocomposites was screened against six multidrug-resistant pathogenic strains, comparable to ampicillin and ciprofloxacin commercial drugs. The antibacterial performance of BTP was more substantial than MTP, notably with the best minimum inhibitory concentration (MIC) of 0.0781 mg/mL towards Bacillus subtilis, Salmonella typhi, and Pseudomonas aeruginosa. Among all, BTP provided the clearest zone of inhibition (ZOI) of 35 ± 1.00 mm against Salmonella typhi. After the dispersion of silver nanoparticles (AgNPs), MTP/Ag NCs offered dose-dependently distinct advantages over the same nanoparticle with BTP; a more noteworthy de...
Cells, Mar 27, 2023
This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY
Pharmaceutics
This work describes the synthesis of quinoline-based N--heterocyclic arenes and their biological ... more This work describes the synthesis of quinoline-based N--heterocyclic arenes and their biological evaluation as molluscicides against adult Biomophalaria alexandrina snails as well as larvicides against Schistosoma mansoni larvae (miracidia and cercariae). Molecular docking studies were demonstrated to investigate their affinity for cysteine protease protein as an interesting target for antiparasitics. Compound AEAN showed the best docking results followed by APAN in comparison to the co-crystallized ligand D1R reflected by their binding affinities and RMSD values. The egg production, hatchability of B. alexandrina snails and ultrastructural topography of S. mansoni cercariae using SEM were assessed. Biological evaluations (hatchability and egg-laying capacity) revealed that the quinoline hydrochloride salt CAAQ was the most effective compound against adult B. alexandrina snails, whereas the indolo-quinoline derivative APAN had the most efficiency against miracidia, and the acridinyl...
Biomedicines
Background: Hepatocellular carcinoma (HCC) is the most common histologic type of primary liver ca... more Background: Hepatocellular carcinoma (HCC) is the most common histologic type of primary liver cancers worldwide. Hepatitis C virus (HCV) infection remains a major risk factor for chronic liver disease, cirrhosis, and HCC. To understand the molecular pathogenesis of HCC in chronic HCV infection, many molecular markers are extensively studied, including long noncoding RNAs (lncRNA). Objective: To evaluate the expression levels of lncRNAs (LINC01564, RAMS11), CBX4, and TOP2A in patients with chronic HCV infection and patients with HCC on top of chronic HCV infection and correlate these levels with the clinicopathological features of HCC. Subjects and Methods: One hundred and fifty subjects were enrolled in this study and divided into three groups: group I included 50 patients with HCC on top of chronic hepatitis C (CHC), group II included 50 patients with CHC only, and group III included 50 healthy individuals as a control group. LncRNAs relative expression level was determined by RT-...
Antibiotics
Isatin–quinoline conjugates 10a–f and 11a–f were assembled by the reaction of N-(bromobutyl) isat... more Isatin–quinoline conjugates 10a–f and 11a–f were assembled by the reaction of N-(bromobutyl) isatin derivatives 3a, b with aminoquinolines 6a–c and their corresponding hydrazinyl 9a–c in good yields. The structures of the resulting conjugates were established by spectroscopic tools and showed data consistent with the proposed structures. In vitro antibacterial activity against different bacterial strains was evaluated. All tested conjugates showed significant biocidal activity with lower MIC than the first line drugs chloramphenicol and ampicillin. Conjugates 10a, 10b and 10f displayed the most potent activity against all clinical isolates. The antibiofilm activity for all tested conjugates was screened against the reference drug vancomycin using the MRSA strain. The results revealed that all conjugates had an inhibitory activity against biofilm formation and conjugate. Conjugate 11a showed 83.60% inhibition at 10 mg/mL. In addition, TEM studies were used to prove the mechanism of a...
Journal of Heterocyclic Chemistry, May 31, 2016
This investigation describes the design of a series of cycloheptathieno[2,3-d]pyrimidines along w... more This investigation describes the design of a series of cycloheptathieno[2,3-d]pyrimidines along with their synthetic strategy. The target compounds were screened for their PARP-1 inhibitory activity. The modeling study declared that most of the docked compounds showed the same interactions as 3-aminobenzamide, where Gly 894, His 862, Tyr 896, Arg 878, and Ser 864 were the main residues involved in hydrogen bond formation. Compounds eliciting the top ranked docking results were screened for their PARP-1 inhibitory activity giving promising results, and three representative compounds were tested for their cytotoxic activity using Doxorubicin as a reference standard. The target compounds including cyclohepta[b]thiophene and pentahydrocycloheptathieno[2,3-d]pyrimidine cores were designed, prepared, and tested for their PARP-1 inhibitory activity. Compounds (R: ―NHC(S)NH2) and (R: ―CS) were the most potent ones.
Egyptian Journal of Chemistry, 2021
Antioxidants are one of major defenses against toxicity caused by free radicals which makes them ... more Antioxidants are one of major defenses against toxicity caused by free radicals which makes them effective in the prevention and treatment of diseases, like atherosclerosis, stroke, diabetes, Alzheimer's disease, and cancer. The present study discusses the design and synthesis of a new series of cycloheptathiophene/ thienopyrimidine derivatives along with their antioxidant biological evaluation. Virtual screening was performed to build a pharmacophore model based on reported natural active antioxidant compound. All resulted outputs were carefully analyzed for the best matched hits. Moreover, molecular docking was done at the active site of tyrosinase as a predictive tool for exploring the biological activity of the targeted compounds. Free radical scavenging activity was measured using DPPH method in reference to Ascorbic acid. Six out of fifteen synthesized compounds showed more significant antioxidant activity than that recorded by the reference standard.
Journal of Heterocyclic Chemistry, 2016
This investigation describes the design of a series of cycloheptathieno[2,3-d]pyrimidines along w... more This investigation describes the design of a series of cycloheptathieno[2,3-d]pyrimidines along with their synthetic strategy. The target compounds were screened for their PARP-1 inhibitory activity. The modeling study declared that most of the docked compounds showed the same interactions as 3-aminobenzamide, where Gly 894, His 862, Tyr 896, Arg 878, and Ser 864 were the main residues involved in hydrogen bond formation. Compounds eliciting the top ranked docking results were screened for their PARP-1 inhibitory activity giving promising results, and three representative compounds were tested for their cytotoxic activity using Doxorubicin as a reference standard. The target compounds including cyclohepta[b]thiophene and pentahydrocycloheptathieno[2,3-d]pyrimidine cores were designed, prepared, and tested for their PARP-1 inhibitory activity. Compounds (R: ―NHC(S)NH2) and (R: ―CS) were the most potent ones.