Person:
ÖZBAŞ, SUNA

Profile Picture

Email Address

Birth Date

Research Projects

Organizational Units

OrgUnit Logo
Organizational Unit

Job Title

Last Name

ÖZBAŞ

First Name

SUNA

Name

Filters

2013 - 20153
Reset filters

Settings

Author: KÜÇÜKGÜZEL, ŞÜKRİYE GÜNİZ × End date: 2019 ×

Search Results

Now showing 1 - 3 of 3
  • No Thumbnail Available
    PublicationMetadata only
    Synthesis of 1-aroyl-3,5-dimethyl-1H-pyrazoles as anti-HCV and anticancer agents
    (2014) ORUN, OYA; Aydin S., Kaushik-Basu N., Özbaş-Turan S., Akbuǧa J., Tiber P.M., Orun O., Gurukumar K.R., Basu A., Küçükgüzel Ş.G.
    1-Aroyl-3,5-dimethyl-1H-pyrazole derivatives (7-12) were synthesized from some hydrazides (1-6) with acetylacetone (2,4-pentanedione) by microwave irradiation. Their structures were elucidated by FT-IR and 1H-NMR spectral data and elemental analysis. Compound activities were evaluated against HCV NS5B and in cell based HCV reporters. Compound 8 was the most promising of this series in inhibiting intracellular NS5B activity and HCV RNA replication in reporter cells. The selected compounds 9, 10 and 12 by National Institue of Health were screened for their anticancer activity against 60 human tumor cell lines. Compound 9 (3-[(3,5-dimethyl-1H-pyrazol-1-yl)carbonyl]-2′,4′- difluorobiphenyl-4-ol) possessed significant activity against human immortalized myelogenous leukemia (K-562) exhibiting cell growth promotion 30.05%, with inhibition of 69.95% at 10-5M concentration. Compounds 3 and 9 were evaluated for cell viability and growth inhibition by K-562 cells of MTT assay, at different doses (10-6- 10-2M). Further, compound 9 exhibited anticancer activity against K-562 cells with IC50 value of 4 μM . Apoptosis levels of compound 9 were determined for three different concentrations (10-6, 10-5 and 10-3M) at two time points (24 and 48 h). Compound 9 induced apoptosis of K-562 cells, thus suggesting that compound 9 might be a potential chemopreventive agent for chronic myelogenous leukemia. © 2014 Bentham Science Publishers.
  • No Thumbnail Available
    PublicationMetadata only
    Synthesis, Cytotoxicity, and Pro-Apoptosis Activity of Etodolac Hydrazide Derivatives as Anticancer Agents
    (WILEY-V C H VERLAG GMBH, 2013) ŞENER, AZİZE; Cikla, Pelin; Ozsavci, Derya; Bingol-Ozakpinar, Ozlem; Sener, Azize; Cevik, Ozge; Ozbas-Turan, Suna; Akbuga, Julide; Sahin, Fikrettin; Kucukguzel, S. Guniz
    Etodolac hydrazide and a novel series of etodolac hydrazide-hydrazones 315 and etodolac 4-thiazolidinones 1626 were synthesized in this study. The structures of the new compounds were determined by spectral (FT-IR, 1H NMR, 13C NMR, HREI-MS) methods. Some selected compounds were determined at one dose toward the full panel of 60 human cancer cell lines by the National Cancer Institute (NCI, Bethesda, USA). 2-(1,8-Diethyl-1,3,4,9-tetrahydropyrano[3,4-b]indole-1-yl)acetic acid[(4-chlorophenyl)methylene]hydrazide 9 demonstrated the most marked effect on the prostate cancer cell line PC-3, with 58.24% growth inhibition at 105M (10 mu M). Using the MTT colorimetric method, compound 9 was evaluated in vitro against the prostate cell line PC-3 and the rat fibroblast cell line L-929, for cell viability and growth inhibition at different doses. Compound 9 exhibited anticancer activity with an IC50 value of 54 mu M (22.842 mu g/mL) against the PC-3 cells and did not display any cytotoxicity toward the L-929 rat fibroblasts, compared to etodolac. In addition, this compound was evaluated for caspase-3 and Bcl-2 activation in the apoptosis pathway, which plays a key role in the treatment of cancer.
  • Thumbnail Image
    PublicationOpen Access
    Synthesis of pro-apoptotic indapamide derivatives as anticancer agents
    (TAYLOR & FRANCIS LTD, 2015-11-02) ORUN, OYA; Yilmaz, Ozgur; Turan, Suna Ozbas; Akbuga, Julide; Tiber, Pinar Mega; Orun, Oya; Supuran, Claudiu T.; Kucukguzel, S. Guniz
    4-Chloro-3-({[(substitutedamino)carbonothioyl]amino} sulfonyl)-N-(2-methyl-2,3-dihydro-1H-indole-1-yl)benzamide (1-20) and 4-chloro-3-({[3-(substituted)-4-oxo-1,3-thiazolidine-2-ylidene]amino} sulfonyl)-N-(2-methyl-2,3-dihydro-1H-indole-1-yl)benzamide derivatives (21-31) were synthesized from 4-chloro-N-(2-methyl-2,3-dihydroindol-1-yl)-3-sulfamoylbenzamide (indapamide). 4-Chloro-3-({[(4-chlorophenyl)amino)carbonothioyl]amino} sulfonyl)-N-(2-methyl- 2,3-dihydro-1H-indole-1-yl)benzamide 12 demonstrated the highest proapoptotic activity among all synthesized compounds on melanoma cell lines MDA-MB-435 with 3.7% growth inhibition at the concentration of 10 mu M. Compound 12 (SGK 266) was evaluated in vitro using the MTT colorimetric method against melanoma cancer cell line MDA-MB435 growth inhibition for different doses and exhibited anticancer activity with IC50 values of 85-95 mu M against melanoma cancer cell line MDA-MB435. In addition, this compound was investigated as inhibitors of four physiologically relevant human carbonic anhydrase isoforms, hCA I, II, IX and XII. The compund inhibited these enzymes with IC50 values ranging between 0.72 and 1.60 mu M.