PubMed İndeksli Yayınlar Koleksiyonu / PubMed Indexed Publications Collection
Permanent URI for this collectionhttps://hdl.handle.net/11147/7645
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Book Part Citation - Scopus: 86The Role of Mirna in Cancer: Pathogenesis, Diagnosis, and Treatment(Humana Press, 2022) Uzuner, Erez; Ulu, Gizem Tuğçe; Gürler, Sevim Beyza; Baran, YusufCancer is also determined by the alterations of oncogenes and tumor suppressor genes. These gene expressions can be regulated by microRNAs (miRNA). At this point, researchers focus on addressing two main questions: “How are oncogenes and/or tumor suppressor genes regulated by miRNAs?” and “Which other mechanisms in cancer cells are regulated by miRNAs?” In this work we focus on gathering the publications answering these questions. The expression of miRNAs is affected by amplification, deletion or mutation. These processes are controlled by oncogenes and tumor suppressor genes, which regulate different mechanisms of cancer initiation and progression including cell proliferation, cell growth, apoptosis, DNA repair, invasion, angiogenesis, metastasis, drug resistance, metabolic regulation, and immune response regulation in cancer cells. In addition, profiling of miRNA is an important step in developing a new therapeutic approach for cancer. © 2022, Springer Science+Business Media, LLC, part of Springer Nature.Editorial Citation - WoS: 3Citation - Scopus: 4La médecine de précision en oncologie: challenges, enjeux et nouveaux paradigmes(John Libbey Eurotext Ltd, 2019) Cox, Stephanie; Rousseau-Tsangaris, Marina; Abou-Zeid, Nancy; Dalle, Stephane; Leurent, Pierre; Cutivet, Arnaud; Baran, YusufL'oncologie médicale a pris, depuis quelques années, un tournant substantiel en intégrant la dimension génomique dans la prise de décision thérapeutique. En raison de l'accès aux technologies de séquençage (exome complet, séquençage ciblé du génome, séquençage de l'ARN, ADN circulant. . .) facilité par la mise en place de plateformes de biologie moléculaire et la diminution des coûts par échantillon, la caractérisation moléculaire est devenue un outil supplémentaire à la disposition du clinicien, s'ajoutant au diagnostic histologique et immunohistochimique et aux données d'imagerie radiologique. Cette approche moléculaire a permis d'identifier de nouvelles formes nosologiques et permet, au-delà de l'aspect cognitif, de renseigner sur les altérations qui sont à prendre en compte dans les décisions thérapeutiques (biomarqueurs prédictifs, activation de voies spécifiques, mutations de résistance). C'est dans ce contexte de profond et rapide changement de pratique médicale et scientifique qu'il a été proposé de réfléchir collectivement aux nouveaux enjeux sous la forme d'un workshop à l'occasion de Biovision qui s'est tenu à Lyon, du 4 au 6 avril 2017.Article Citation - WoS: 3Citation - Scopus: 3A Minimally Invasive Transfer Method of Mesenchymal Stem Cells To the Intact Periodontal Ligament of Rat Teeth: a Preliminary Study(TÜBİTAK, 2018) Gül Amuk, Nisa; Kurt, Gökmen; Kartal Yandım, Melis; Adan, Aysun; Baran, YusufThe aim of this study was to introduce a minimally invasive procedure for mesenchymal stem cell (MSC) transfer into the intact periodontal ligament (PDL) of the molar teeth in rats. Ten 12-week-old Wistar albino rats were used for this preliminary study. MSCs were obtained from bones of two animals and were labeled with green fluorescent protein (GFP). Four animals were randomly selected for MSC injection, while 4 animals served as a control group. Samples were prepared for histological analysis, Cox-2 mRNA expression polymerase chain reaction analysis, and fluorescent microscopy evaluation. The number of total cells, number of osteoclastic cells, and Cox-2 mRNA expression levels of the periodontal tissue of teeth were calculated. The number of total cells was increased with MSC injections in PDL significantly (P < 0.001). The number of osteoclastic cells and Cox-2 mRNA expression were found to be similar for the two groups. GFP-labeled MSCs were observed with an expected luminescence on the smear samples of the PDL with transferred MSCs. The results of this preliminary study demonstrate successful evidence of transferring MSCs to intact FIX in a nonsurgical way and offer a minimally invasive procedure for transfer of MSCs to periodontal tissues.Article Citation - WoS: 12Citation - Scopus: 14Gossypol Interferes With Both Type I and Type Ii Topoisomerase Activities Without Generating Strand Breaks(Humana Press, 2013) Şenarısoy, Müge; Cantürk, Pakize; Zencir, Sevil; Baran, Yusuf; Topçu, ZekiA considerable number of agents with chemotherapeutic potentials reported over the past years were shown to interfere with the reactions of DNA topoisomerases, the essential enzymes that regulate conformational changes in DNA topology. Gossypol, a naturally occurring bioactive phytochemical is a chemopreventive agent against various types of cancer cell growth with a reported activity on mammalian topoisomerase II. The compounds targeting topoisomerases vary in their mode of action; class I compounds act by stabilizing covalent topoisomerase-DNA complexes resulting in DNA strand breaks while class II compounds interfere with the catalytic function of topoisomerases without generating strand breaks. In this study, we report Gossypol as the interfering agent with type I topoisomerases as well. We also carried out an extensive set of assays to analyze the type of interference manifested by Gossypol on DNA topoisomerases. Our results strongly suggest that Gossypol is a potential class II inhibitor as it blocked DNA topoisomerase reactions with no consequently formed strand breaks.