Browsing by Author "Uba, Abdullahi Ibrahim"
Now showing items 1-10 of 10
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Carboxylic acid derivatives display potential selectivity for human histone deacetylase 6: Structure-based virtual screening molecular docking and dynamics simulation studies
Human histone deacetylase 6 (HDAC6) has been shown to play a major role in oncogenic cell transformation via deacetylation of alpha-tubulin making it a viable target of anticancer drug design and development. The crystal structure of HDAC6 catalytic domain 2 has been recently made available providing avenues for structure-based drug design campaign. Here in our continuous effort to identify potentially selective HDAC6 inhibitors structure-based virtual screening of similar to 72 461 compounds was ...
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The design of potent HIV-1 integrase inhibitors by a combined approach of structure-based virtual screening and molecular dynamics simulation
Authors:Samorlu, Augustine S.; Yelekçi, Kemal; Uba, Abdullahi Ibrahim
Publisher and Date:(Taylor & Francis Ltd, 2018)Bu araştırmanın amacı, AIDS olarak bilinen insan bağışıklık sistemine etki eden, duraksamayan ve depresif bir hastalığa neden olan HIV-1'in tedavisi için potansiyel inhibitörleri elde etmektir. HIV-1 integraz inhibitörleri, HIV-1 enfeksiyonunun tedavisinde çok önemlidir. İntegraz enziminin (IN) inhibe edilmesi HIV-1 virüsünün çoğalma işleminin sonlandırılmasına neden olur. Böylece yaşam döngüsüne son verir. Bu inhibitörleri elde etmek için bilgisayar destekli in silico yaklaşım kullanılmıştır. ...
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Examining the stability of binding modes of the co-crystallized inhibitors of human HDAC8 by molecular dynamics simulation
Authors:Uba, Abdullahi Ibrahim; Weako, Jackson; Keskin, Özlem; Gürsoy, Attila; Yelekçi, Kemal
Publisher and Date:(Taylor & Francis Inc, 2019)Histone deacetylase (HDAC) 8 has been implicated as a potential therapeutic target in a variety of cancers neurodegenerative disorders metabolic dysregulation and autoimmune and inflammatory diseases. Several nonselective HDAC inhibitors have been co-crystallized with HDAC8. Molecular dynamics (MD) studies may yield valuable information on the structural stabilities of the complexes over time as determined by various pharmacophore features of the co-crystallized inhibitors. Here using 11 unmodified ...
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Homology modeling of human histone deacetylase 10 and design of potential selective inhibitors
Histone deacetylases (HDACs) are implicated in the pathology of various cancers, and their pharmacological blockade has proven to be promising in reversing the malignant phenotypes. However, lack of crystal structures of some of the human HDAC isoforms (e.g., HDAC10) hinders the design of the isoform-selective inhibitor. Here, the recently solved X-ray crystal structure of Danio rerio (zebrafish) HDAC10 (Protein Data Bank (PDB) ID; 5TD7, released on 24 May 2017) was retrieved from the PDB and used ...
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Identification of potential inhibitors of human methionine aminopeptidase (type II) for cancer therapy: Structure-based virtual screening, ADMET prediction and molecular dynamics studies
Authors:Weako, Jackson; Uba, Abdullahi Ibrahim; Keskin, Özlem; Gürsoy, Attila; Yelekçi, Kemal
Publisher and Date:(Elsevier, 2020)Methionine Aminopeptidases MetAPs are divalent-cofactor dependent enzymes that are responsible for the cleavage of the initiator Methionine from the nascent polypeptides. MetAPs are classified into two isoforms: namely, MetAP1 and MetAP2. Several studies have revealed that MetAP2 is upregulated in various cancers, and its inhibition has shown to suppress abnormal or excessive blood vessel formation and tumor growth in model organisms. Clinical studies show that the natural product fumagillin, and ...
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Pharmacophore-based virtual screening for identification of potential selective inhibitors of human histone deacetylase 6
Histone deacetylase (HDAC) 6 plays a role in oncogenic transformation and cancer metastasis via tubulin deacetylation, making it a critical target for anticancer drug design. However, lack of selectivity shown by many of the current HDAC6 inhibitors in clinical use and trials prompts the continuous search for selective inhibitors. Here, 10 pharmacophore hypotheses were developed based on the 3D common features of training set of 20 HDAC inhibitors in clinical use and trials. The hypotheses were ...
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Status of malondialdehyde, catalase and superoxide dismutase levels/activities in schoolchildren with iron deficiency and iron-deficiency anemia of Kashere and its environs in Gombe State, Nigeria
Authors:Usman, Sani Sharif; Dahiru, Musa; Abdullahir, Bashir; Abdullahir, Shariff Bilal; Maigari, Usman Muhammad; Uba, Abdullahi Ibrahim
Publisher and Date:(Elsevier, 2019)Background: Iron-deficiency anemia (IDA) or iron deficiency (ID) is by far the most common form of disorder affecting the cognitive development, physical growth and school performance of children in developing countries including Nigeria. Objectives: In the present study, we aimed to examine whether IDA or ID, or both are associated with oxidative stress or otherwise by assessing the perturbations in oxidative stress markers including malondialdehyde (MDA), catalase (CAT) and superoxide dismutase ...
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Synthesis, molecular modeling, in vivo study and anticancer activity against prostate cancer of (+) (S)-naproxen derivatives
Authors:Uba, Abdullahi Ibrahim; Karasulu, Hatice Yeşim; Karasulu, Ercüment; Birgül, Kaan; Yıldırım, Yeliz; Bekçi, Hatice; Cumaoğlu, Ahmet; Yılmaz, Özgür; Kabasakal, Levent; Küçükgüzel, Şükriye Güniz; Yelekçi, Kemal
Publisher and Date:(Elsevier Masson s.r.l., 2020)In this study, (S)-naproxen thiosemicarbazides (3a-d), 1,2,4-triazoles (4a-c), triazole-thioether hybride compounds (5a-p) were synthesized and their structures (3a, 3d, 4a and 5a-p) were confirmed by FT-IR, 1H NMR,13C NMR, HR-Mass spectra and elemental analysis. These compounds are designed to inhibit methionine amino peptidase-2 (MetAP2) enzyme in prostate cancer. These compounds (3d, 5a-p) evaluated against androgen-independent prostate adenocarcinoma (PC-3, DU-145) and androgen-dependent ...