Scopus İndeksli Yayınlar Koleksiyonu

Permanent URI for this collectionhttps://hdl.handle.net/20.500.14627/7

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  • Article
    Design and Synthesis of Thiosemicarbazides and 1,2,4-Triazoles Derived From Ibuprofen as Potential Metap (Type II) Inhibitors
    (Elsevier Ireland Ltd, 2025) Yilmaz, Ozgur; Biliz, Yagmur; Ayan, Sumeyra; Cevik, Ozge; Karahasanoglu, Mufide; Cotuker, Reyhan; Kucukguzel, S. Guniz
    In the present study, a range of novel thiosemicarbazides 4a-i and 1,2,4-triazoles 5a-i derived from ibuprofen, were synthesized. Structural elucidation of these synthesized compounds was performed utilizing a variety of spectroscopic methods, including FTIR, 1H NMR, 13C NMR and HR-MS. The synthesized compounds were tested for cytotoxicity in five different cancer cell lines (cervical cancer (HeLa), human breast cancer (MCF-7), human gastric adenocarcinoma (MKN-45), human metastatic prostate cancer (PC3) and human glioblastoma (U87)). The compounds were compared with healthy cells (NIH-3T3) and the most effective compounds were determined by means of the selectivity index. Thiosemicarbazides derived form ibuprofen 4i and 4d showed anticancer activity, while 1,2,4-triazoles derived form ibuprofen 5b, 5c, 5d, 5e, 5h, 5g showed anticancer activity in HeLa, MCF-7, MKN-45, PC3 and U87 cells. To test the stability of the protein-drug complexes all 18 compounds 4a-i and 5a-i were docked into the active site of the MetAP2 enzyme In general, computational inhibition constants values were correlated with the experimental values. The dynamic behavior of MetAP2-inhibitor complexes was analyzed using all atoms Molecular Dynamic (MD) simulations for 200 ns duration. MD revealed that the drugs bind in the active center of MetAP2 with stable RMSD and RMSF. In conclusion, in-silico results and in-vitro studies suggests that thiosemicarbazides and 1,2,4-triazoles derived from ibuprofen may be novel anticancer drug candidates for treating cervical, breast, prostate, gastric and glioblastoma. Compounds provided induction of apoptotic proteins in the cell by inhibiting MetAP2 enzyme. Furthermore, the potential antioxidant activities of the compounds were evaluated using the 2,2-Diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity assay. Among the compounds tested, 4a, 4b, 4e, 4f, 4h, and 4i exhibited values closely resembling the DPPH activity of the standards.
  • Article
    Citation - Scopus: 2
    Synthesis and Biological Evaluation of Novel Paracetamol-Triazole Conjugates
    (Society of Pharmaceutical Sciences of Ankara (FABAD), 2023) Kulabaş, Necla; Gurboga, Merve; Özakpınar, Özlem Bingöl; Liu, Jianyang; Jakobson, Per-johan; Danış, Özkan; Küçükgüzel, İlkay; Jakobsson, Per-Johan; Ogan, Ayse
    Başlangıç maddesi olarak parasetamol kullanılarak bazı yeni triazol içeren asetamid türevleri 9-20 sentezlendi ve yapıları FTIR, NMR (1H and 13C) ve kütle spektral verileri ile karakterize edildi. Beş insan kanser hücre hattına (akciğer kanseri A549, kronik miyelojenöz lösemi K562, meme kanseri MCF-7, prostat kanseri PC-3, nöroblastoma SH-SY5Y hücre hatları) karşı sentezlenen tüm moleküllerin in vitro sitotoksik aktiviteleri incelendi ve ayrıca seçiciliği tanımlamak için fare embriyonik fibroblast hücreleri (NIH/3T3) üzerinde sitotoksik etkileri MTT yöntemiyle test edildi. Ek olarak, on iki hedef bileşik 9-20, mPGES-1 ve COX-1/2 inhibe edici etkileri açısından tarandı. Sentezlenen bileşiklerin hiçbiri hem kanser hücrelerine hem de mPGES-1 ve COX-1/2 enzimlerine karşı anlamlı bir inhibisyon göstermezken, sağlıklı hücrelere karşı da sitotoksik olmadıkları belirlendi. Son olarak yeni sentezlenen bileşiklerin ADMET özellikleri in siliko yöntemler kullanılarak tahmin edildi.