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  1. Article: Calamusins J-K: new anti-angiogenic sesquiterpenes from Sarcophyton glaucum

    Shaaban, Mohamed / Yassin, Faten Y / Soltan, Maha M

    Natural product research. 2021 Dec. 17, v. 35, no. 24

    2021  

    Abstract: Chemical investigation of the organic extract of the marine soft coral Sarcophyton glaucum from Red Sea, Egypt, afforded two new hydroazulenes; calamusin J (1) and its hydroperoxide derivative calamusin K (2) in addition to eight known compounds. ... ...

    Abstract Chemical investigation of the organic extract of the marine soft coral Sarcophyton glaucum from Red Sea, Egypt, afforded two new hydroazulenes; calamusin J (1) and its hydroperoxide derivative calamusin K (2) in addition to eight known compounds. Structure of compounds 1-2 were confirmed by intensive NMR and mass spectrometry studies. The coral extract and the obtained compounds were examined against a set of diverse microorganisms. The in vitro anti-cancer properties were assessed against colon (Caco-2) and breast (MCF-7) cell lines together with their exerted cytotoxicity on the immortalized normal epithelium (hTERT-RPE1) cell type. The anti-angiogenic power was also highlighted through suppressing MCF-7 cell migration and the significant inactivation of VEGFR2 enzyme. Compounds 1,2 are the most potent angiogenic inhibitors (represented by 1.2- and 1.4-fold enzyme inactivation, respectively) relative to sorafenib. The polyhydroxy sterol; 5α-3β,6α,11-trihydroxy-24-methyl-9,11-seco-5a-cholest-7-en-9-one (S4) inhibited effectively the growth of Caco-2 and MCF-7 with GI₅₀ of 0.62 and 2.3 µM, respectively.
    Keywords Sarcophyton ; breasts ; cell movement ; colon ; corals ; cytotoxicity ; enzyme inactivation ; epithelium ; human cell lines ; mass spectrometry ; research ; sesquiterpenoids ; sterols ; vascular endothelial growth factor receptor-2 ; Egypt ; Red Sea
    Language English
    Dates of publication 2021-1217
    Size p. 5720-5731.
    Publishing place Taylor & Francis
    Document type Article
    ZDB-ID 2185747-7
    ISSN 1478-6427 ; 1478-6419
    ISSN (online) 1478-6427
    ISSN 1478-6419
    DOI 10.1080/14786419.2020.1828404
    Database NAL-Catalogue (AGRICOLA)

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  2. Article: Bioactive compounds from Matricaria chamomilla: structure identification, in vitro antiproliferative, antimigratory, antiangiogenic, and antiadenoviral activities

    Shaaban, Mohamed / El-Hagrassi, Ali M. / Osman, Abeer F. / Soltan, Maha M.

    Zeitschrift für Naturforschung. 2022 Mar. 28, v. 77, no. 3-4

    2022  

    Abstract: During our exploring the anticancer activity of some medicinal plants and their major metabolites, the aerial parts of the Egyptian Matricaria chamomilla (flowers and stems) were studied. GC–MS analysis of the organic soluble extracts of the flowers and ... ...

    Abstract During our exploring the anticancer activity of some medicinal plants and their major metabolites, the aerial parts of the Egyptian Matricaria chamomilla (flowers and stems) were studied. GC–MS analysis of the organic soluble extracts of the flowers and stems fractions revealed the presence of 43 and 45 compounds, respectively. Individual chromatographic purification of the flowers and stems’ extracts afforded three major compounds. Structures of these compounds were identified by 1D- and 2D-NMR and HRESI-MS spectroscopic data as bisabolol oxide A (1) and (E)-tonghaosu (2) (as mixture of ratio 2:1) from the flowers extract, meanwhile apigenin-7-β-d-glucoside (3) from the stems fraction. Biologically, the chamomile extracts announced significant antiproliferative activities exceeded in potency by ∼1.5 fold in case of the stem, recording GI₅₀ 13.16 and 17.04 μg/mL against Caco-2 and MCF-7, respectively. Both fractions were approximately equipotent against the migration of the same cell type down to 10 μg/mL together, compounds 1, 2 but not 3, showed considerable growth inhibition of the same cells at GI₅₀ 13.36 and 11.83 μg/mL, respectively. Interestingly, they were able to suppress Caco-2 colon cancer cells migration at 5.8 μg/mL and potently inactivate the VEGFR2 angiogenic enzyme (1.5-fold relative to sorafenib. The obtained compounds and corresponding chamomile extracts were evaluated against Adeno-7 virus, revealing that both chamomiles’ extracts (flowers and stems) and their corresponding obtained compounds (1–3) were potent in their depletion to the Adeno 7 infectivity titer, however, the flower extract and compounds 1–2 were more effective than those of the stem extract and its end-product (3).
    Keywords Matricaria chamomilla ; antineoplastic activity ; chamomile ; colorectal neoplasms ; flower extracts ; growth retardation ; metabolites ; pathogenicity ; spectral analysis ; stem extracts ; viruses
    Language English
    Dates of publication 2022-0328
    Size p. 85-94.
    Publishing place De Gruyter
    Document type Article
    ZDB-ID 124636-7
    ISSN 1865-7125 ; 0341-0382 ; 0341-0471 ; 0939-5075
    ISSN (online) 1865-7125
    ISSN 0341-0382 ; 0341-0471 ; 0939-5075
    DOI 10.1515/znc-2021-0083
    Database NAL-Catalogue (AGRICOLA)

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  3. Article ; Online: Calamusins J-K: new anti-angiogenic sesquiterpenes from

    Shaaban, Mohamed / Yassin, Faten Y / Soltan, Maha M

    Natural product research

    2020  Volume 35, Issue 24, Page(s) 5720–5731

    Abstract: Chemical investigation of the organic extract of the marine soft ... ...

    Abstract Chemical investigation of the organic extract of the marine soft coral
    MeSH term(s) Animals ; Anthozoa ; Antineoplastic Agents/pharmacology ; Caco-2 Cells ; Humans ; MCF-7 Cells ; Sesquiterpenes/pharmacology
    Chemical Substances Antineoplastic Agents ; Sesquiterpenes
    Language English
    Publishing date 2020-10-05
    Publishing country England
    Document type Journal Article
    ZDB-ID 2185747-7
    ISSN 1478-6427 ; 1478-6419
    ISSN (online) 1478-6427
    ISSN 1478-6419
    DOI 10.1080/14786419.2020.1828404
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: In vitro chemotherapeutic and antiangiogenic properties of cardenolides from Acokanthera oblongifolia (Hochst.) Codd

    Soltan, Maha M. / Abd-Alla, Howaida I. / Hassan, Amal Z. / Hanna, Atef G.

    Zeitschrift für Naturforschung. 2021 July 27, v. 76, no. 7-8

    2021  

    Abstract: Acovenoside A (Acov-A) and acobioside A (Acob-A) were isolated from Acokanthera oblongifolia. Their anticancer properties were explored regarding, antiproliferative and antiangiogenic activities. The study included screening phase against six cancer cell ...

    Abstract Acovenoside A (Acov-A) and acobioside A (Acob-A) were isolated from Acokanthera oblongifolia. Their anticancer properties were explored regarding, antiproliferative and antiangiogenic activities. The study included screening phase against six cancer cell lines followed by mechanistic investigation against HepG2 cancer cell line. The sulforhodamine-B (SRB) was used to determine their growth inhibitory power. In the other hand, flow cytometry techniques were recorded the cell death type and cell cycle analysis. The clonogenic (colony formation) and wound healing assays, enzyme-linked immunosorbent assay (ELISA) and molecular docking, were performed to evaluate the antiangiogenesis capability. Both compounds were strongly, inhibited four cancer cell lines at GI₅₀ less than 100 nM. The in vitro mechanistic investigation against HepG2 resulted in cell accumulations at G2M phase and induction of apoptosis upon treating cells separately, with 400 nM Acov-A and 200 nM Acob-A. Interestingly, the same concentrations were able to activate caspase-3 by 7.2 and 4.8-fold, respectively. Suppressing the clonogenic capacity of HepG2 cells (20 and 40 nM) and inhibiting the migration of the colon Caco-2 cancer cells were provoke the results of vascular endothelial growth factor receptor2 (VEGFR2) kinase enzyme inactivation. The docked study was highly supportive, to the antiangiogenic approach of both cardenolides. The isolated cardenolides could orchestrate pivotal events in fighting cancer.
    Keywords Acokanthera ; apoptosis ; cardenolides ; caspase-3 ; cell cycle ; colon ; drug therapy ; enzyme inactivation ; enzyme-linked immunosorbent assay ; flow cytometry ; neoplasm cells ; vascular endothelial growth factor receptor-2 ; vascular endothelial growth factors
    Language English
    Dates of publication 2021-0727
    Size p. 337-346.
    Publishing place De Gruyter
    Document type Article
    ZDB-ID 124636-7
    ISSN 1865-7125 ; 0341-0382 ; 0341-0471 ; 0939-5075
    ISSN (online) 1865-7125
    ISSN 0341-0382 ; 0341-0471 ; 0939-5075
    DOI 10.1515/znc-2020-0302
    Database NAL-Catalogue (AGRICOLA)

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  5. Article: Monascin and monascinol, azaphilonoid pigments from Mortierella polycephala AM1: in silico and in vitro targeting of the angiogenic VEGFR2 kinase

    Shaaban, Mohamed / Magdy El-Metwally, Mohammad / Mekawey, Amal A. I. / Abdelwahab, Ahmed B. / Soltan, Maha M.

    Zeitschrift für Naturforschung. 2022 Jan. 27, v. 77, no. 1-2

    2022  

    Abstract: The fungus, Mortierella polycephala is one of the most productive sources of anticancer bioactive compounds namely those of pigment nature. During our investigation of the produced bioactive metabolites by the terrestrial M. polycephala AM1 isolated from ...

    Abstract The fungus, Mortierella polycephala is one of the most productive sources of anticancer bioactive compounds namely those of pigment nature. During our investigation of the produced bioactive metabolites by the terrestrial M. polycephala AM1 isolated from Egyptian poultry feather waste, two main azaphilonoid pigments, monascin (1) and monascinol (2) were obtained as major products; their structures were identified by 1D (¹H&¹³C) and 2D (¹H–¹H COSY, HMBC) NMR and HRESI-MS spectroscopic data. Biologically, cytotoxic activities of these compounds were broadly studied compared with the fungal extract. To predict the biological target for the presumed antitumor activity, an in silico study was run toward three proteins, topoisomerase IIα, topoisomerase IIβ, and VEGFR2 kinase. Monascinol (2) was expected to be moderately active against VEGFR2 kinase without any anticipated inhibition toward topo II isoforms. The in vitro study confirmed the docked investigation consistently and introduced monascinol (2) rather than its counterpart (1) as a potent inhibitor to the tested VEGFR2 kinase. Taxonomically, the fungus was identified using morphological and genetic assessments.
    Keywords Mortierella ; antineoplastic activity ; computer simulation ; cytotoxicity ; fungi ; metabolites ; poultry ; spectral analysis ; vascular endothelial growth factor receptor-2 ; wastes
    Language English
    Dates of publication 2022-0127
    Size p. 11-19.
    Publishing place De Gruyter
    Document type Article
    ZDB-ID 124636-7
    ISSN 1865-7125 ; 0341-0382 ; 0341-0471 ; 0939-5075
    ISSN (online) 1865-7125
    ISSN 0341-0382 ; 0341-0471 ; 0939-5075
    DOI 10.1515/znc-2021-0095
    Database NAL-Catalogue (AGRICOLA)

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  6. Article ; Online: Bioactive compounds from

    Shaaban, Mohamed / El-Hagrassi, Ali M / Osman, Abeer F / Soltan, Maha M

    Zeitschrift fur Naturforschung. C, Journal of biosciences

    2021  Volume 77, Issue 3-4, Page(s) 85–94

    Abstract: During our exploring the anticancer activity of some medicinal plants and their major metabolites, the aerial parts of the ... ...

    Abstract During our exploring the anticancer activity of some medicinal plants and their major metabolites, the aerial parts of the Egyptian
    MeSH term(s) Caco-2 Cells ; Flowers/chemistry ; Humans ; Matricaria/chemistry ; Oils, Volatile/analysis ; Plant Extracts/chemistry ; Plants, Medicinal
    Chemical Substances Oils, Volatile ; Plant Extracts
    Language English
    Publishing date 2021-06-22
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 124636-7
    ISSN 1865-7125 ; 0341-0382 ; 0341-0471 ; 0939-5075
    ISSN (online) 1865-7125
    ISSN 0341-0382 ; 0341-0471 ; 0939-5075
    DOI 10.1515/znc-2021-0083
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: In vitro

    Soltan, Maha M / Abd-Alla, Howaida I / Hassan, Amal Z / Hanna, Atef G

    Zeitschrift fur Naturforschung. C, Journal of biosciences

    2021  Volume 76, Issue 7-8, Page(s) 337–346

    Abstract: Acovenoside A (Acov-A) and acobioside A (Acob-A) were isolated ... ...

    Abstract Acovenoside A (Acov-A) and acobioside A (Acob-A) were isolated from
    MeSH term(s) Angiogenesis Inhibitors/chemistry ; Angiogenesis Inhibitors/isolation & purification ; Angiogenesis Inhibitors/pharmacology ; Antineoplastic Agents/chemistry ; Antineoplastic Agents/isolation & purification ; Antineoplastic Agents/pharmacology ; Apocynaceae/chemistry ; Apoptosis/drug effects ; Caco-2 Cells ; Cardenolides/chemistry ; Cardenolides/isolation & purification ; Cardenolides/pharmacology ; Cell Cycle/drug effects ; Cell Line, Tumor ; Cell Proliferation/drug effects ; HCT116 Cells ; Hep G2 Cells ; Humans ; MCF-7 Cells ; Molecular Docking Simulation ; Molecular Structure ; Plant Leaves/chemistry ; Protein Binding/drug effects ; Vascular Endothelial Growth Factor Receptor-2/metabolism
    Chemical Substances Angiogenesis Inhibitors ; Antineoplastic Agents ; Cardenolides ; acovenoside A (663-95-6) ; Vascular Endothelial Growth Factor Receptor-2 (EC 2.7.10.1)
    Language English
    Publishing date 2021-06-01
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 124636-7
    ISSN 1865-7125 ; 0341-0382 ; 0341-0471 ; 0939-5075
    ISSN (online) 1865-7125
    ISSN 0341-0382 ; 0341-0471 ; 0939-5075
    DOI 10.1515/znc-2020-0302
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Monascin and monascinol, azaphilonoid pigments from

    Shaaban, Mohamed / Magdy El-Metwally, Mohammad / Mekawey, Amal A I / Abdelwahab, Ahmed B / Soltan, Maha M

    Zeitschrift fur Naturforschung. C, Journal of biosciences

    2021  Volume 77, Issue 1-2, Page(s) 11–19

    Abstract: The fungus, ...

    Abstract The fungus,
    MeSH term(s) Antineoplastic Agents/pharmacology ; Heterocyclic Compounds, 3-Ring ; Mortierella
    Chemical Substances Antineoplastic Agents ; Heterocyclic Compounds, 3-Ring ; monascin (W74D2M37FX)
    Language English
    Publishing date 2021-07-16
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 124636-7
    ISSN 1865-7125 ; 0341-0382 ; 0341-0471 ; 0939-5075
    ISSN (online) 1865-7125
    ISSN 0341-0382 ; 0341-0471 ; 0939-5075
    DOI 10.1515/znc-2021-0095
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Antiproliferative and Antiangiogenic Properties of New VEGFR-2-targeting 2-thioxobenzo[

    Abuelizz, Hatem A / Marzouk, Mohamed / Bakheit, Ahmed H / Awad, Hanem M / Soltan, Maha M / Naglah, Ahmed M / Al-Salahi, Rashad

    Molecules (Basel, Switzerland)

    2020  Volume 25, Issue 24

    Abstract: A series of 3-ethyl(methyl)-2-thioxo-2,3-dihydrobenzo[ ...

    Abstract A series of 3-ethyl(methyl)-2-thioxo-2,3-dihydrobenzo[
    MeSH term(s) Angiogenesis Inhibitors/chemistry ; Angiogenesis Inhibitors/pharmacology ; Antineoplastic Agents/chemistry ; Antineoplastic Agents/pharmacology ; Apoptosis/drug effects ; Cell Cycle/drug effects ; Cell Proliferation/drug effects ; Cell Survival/drug effects ; Dose-Response Relationship, Drug ; Drug Design ; Drug Screening Assays, Antitumor ; Hep G2 Cells ; Humans ; MCF-7 Cells ; Molecular Targeted Therapy ; Quinazolines/chemistry ; Quinazolines/pharmacology ; Structure-Activity Relationship ; Vascular Endothelial Growth Factor Receptor-2/metabolism
    Chemical Substances Angiogenesis Inhibitors ; Antineoplastic Agents ; Quinazolines ; Vascular Endothelial Growth Factor Receptor-2 (EC 2.7.10.1)
    Language English
    Publishing date 2020-12-15
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 1413402-0
    ISSN 1420-3049 ; 1431-5165 ; 1420-3049
    ISSN (online) 1420-3049
    ISSN 1431-5165 ; 1420-3049
    DOI 10.3390/molecules25245944
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Synthesis and biological evaluation of novel 5-chloro-

    Galal, Alaaeldin M F / Soltan, Maha M / Ahmed, Esam R / Hanna, Atef G

    MedChemComm

    2018  Volume 9, Issue 9, Page(s) 1511–1528

    Abstract: A novel series of sulfonamide derivatives, coupled with a salicylamide scaffold, was designed and synthesized. The structures of the synthesized compounds were established ... ...

    Abstract A novel series of sulfonamide derivatives, coupled with a salicylamide scaffold, was designed and synthesized. The structures of the synthesized compounds were established using
    Language English
    Publishing date 2018-07-26
    Publishing country England
    Document type Journal Article
    ZDB-ID 2545949-1
    ISSN 2040-2511 ; 2040-2503
    ISSN (online) 2040-2511
    ISSN 2040-2503
    DOI 10.1039/c8md00214b
    Database MEDical Literature Analysis and Retrieval System OnLINE

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