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TÜBİTAK

Proteomics

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Full-Text Articles in Biology

Hydroquinidine Displays A Significant Anti-Carcinogenic Activity In Breast And Ovarian Cancer Cells Via Inhibiting Cell-Cycle And Stimulating Apoptosis, Mervenur Yavuz, Betül Şahi̇n, Ahmet Tarik Baykal, Turan Demi̇rcan Jan 2023

Hydroquinidine Displays A Significant Anti-Carcinogenic Activity In Breast And Ovarian Cancer Cells Via Inhibiting Cell-Cycle And Stimulating Apoptosis, Mervenur Yavuz, Betül Şahi̇n, Ahmet Tarik Baykal, Turan Demi̇rcan

Turkish Journal of Biology

Breast and ovarian cancers are women's most commonly diagnosed cancers. Seeking an efficient anticarcinogenic compound is still a top priority regarding the aggressiveness of these cancers and the limited benefit of current therapies. Hydroquinidine (HQ) is a natural alkaloid used in arrhythmia and Brugada syndrome. As an ion channel blocker, HQ exhibits its activity by altering ion gradient and membrane potential. Considering the growing evidence of ion channel blockers' antineoplastic potential, we were prompted to test HQ's effect on breast and ovarian cancers. MCF-7 and SKOV-3 cell lines were used to inspect how HQ acts on survival, clonogenicity, migration, tumorigenicity, …


Point-Of-Care Diagnosis Of Cervical Cancer: Potential Protein Biomarkersin Cervicovaginal Fluid, Büşra Köse, Özgüç Takmaz, Mete Güngör, Ahmet Tarik Baykal Jan 2022

Point-Of-Care Diagnosis Of Cervical Cancer: Potential Protein Biomarkersin Cervicovaginal Fluid, Büşra Köse, Özgüç Takmaz, Mete Güngör, Ahmet Tarik Baykal

Turkish Journal of Biology

Cervical cancer (CxCa) is preventable and treatable via vaccination and screening. Cervicovaginal fluid (CVF) represents the physiological components of the female genital tract. These components are suitable to be utilized for clinical purposes, therefore, making CVF a suitable material for disease screening approaches. Due to high false-negative result rates and low attendance of current expensive routine CxCa screening methods, it has become more important to develop a point-of-care (POC) screening method that every single woman could reach worldwide. For this purpose, various self-usage apparatus have been developed for screening of the human papilloma virus (HPV) infection. Furthermore, due to the …


Comparative Proteomic Analysis Of Bacillus Thuringiensis Wild-Type And Two Mutant Strains Disturbed In Polyphosphate Homeostasis, Fi̇li̇z Yeşi̇lirmak, Tuğrul Doruk, Şeri̇f Yilmaz, Sedef Tunca Gedi̇k Jan 2018

Comparative Proteomic Analysis Of Bacillus Thuringiensis Wild-Type And Two Mutant Strains Disturbed In Polyphosphate Homeostasis, Fi̇li̇z Yeşi̇lirmak, Tuğrul Doruk, Şeri̇f Yilmaz, Sedef Tunca Gedi̇k

Turkish Journal of Biology

Polyphosphate polymer (polyP) plays a very important role in every living cell. Synthesis of this linear polymer of phosphate (P$_{i}$) residues is catalyzed by the polyphosphate kinase (PPK) enzyme. It was shown that high levels of intracellular polyphosphate stimulated endotoxin production by Bacillus thuringiensis subsp. israelensis (Bti). In this study, proteomic analysis of the wild-type and two mutant strains, overexpressing the ppk gene (Bti pHTppk) and without the ppk gene (Bti Δppk), were used to clarify the relation between polyP and endotoxin production. Intracellular proteins were separated by two-dimensional gel electrophoresis; 41 spots of interest (proteins differentially expressed) were obtained …


Identification Of Proteins Differentially Accumulated In Enterococcus Faecalis Under Acrylamide Exposure, Aleksandra Bocian, Konrad Hus, Marcin Jaromin, Miroslaw Tyrka, Andrzej Lyskowski Jan 2017

Identification Of Proteins Differentially Accumulated In Enterococcus Faecalis Under Acrylamide Exposure, Aleksandra Bocian, Konrad Hus, Marcin Jaromin, Miroslaw Tyrka, Andrzej Lyskowski

Turkish Journal of Biology

Analysis of bacterial proteomes can be used to obtain large amounts of information about adaptive microbial mechanisms to changing extracellular conditions. In the past, many bacterial species with the ability to degrade acrylamide were isolated. In this study differences in the Enterococcus faecalis proteome upon acrylamide exposure were investigated. We revealed substantial changes in the proteome of bacteria cultured in different environmental conditions. Microorganisms exposed to acrylamide showed higher accumulation of proteins associated with energy metabolism and its regulation. Moreover, several proteins involved in protection of cells from stress conditions were also identified. These biomacromolecules are involved in proper folding …


Analysis Of Protein Expression Changes In The Blood Plasma Of Cows During The Last Month Before Parturition And 2 Months After Calving, Anna Katarzyna Kurpinska, Agnieszka Jarosz, Malgorzata Ozgo, Wieslaw Franciszek Skrzypczak Jan 2016

Analysis Of Protein Expression Changes In The Blood Plasma Of Cows During The Last Month Before Parturition And 2 Months After Calving, Anna Katarzyna Kurpinska, Agnieszka Jarosz, Malgorzata Ozgo, Wieslaw Franciszek Skrzypczak

Turkish Journal of Biology

The organism undergoes tremendous changes at the end of pregnancy and beginning of lactation. The aim of the study was to analyze the physiological changes in cows during the last month of a first pregnancy and the first 2 months of lactation, based on the protein expression in peripheral blood plasma. Changes were observed in the expression of proteins involved in lipid metabolism (apolipoprotein A-I, apolipoprotein E, apolipoprotein J, and apolipoprotein A-IV); immune defense (complement C4 protein and mannose-binding protein C); blood clotting (fibrinogen alpha chain, fibrinogen gamma B-chain, and fibrinogen-like protein 1); as well as reconstruction, regeneration, and defense …