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Full-Text Articles in Biological Factors

Role Of Adenylyl Cyclase Type 7 In Functions Of Bv-2 Microglia, Yawen Hu, Rebecca A. Hill, Masami Yoshimura Dec 2022

Role Of Adenylyl Cyclase Type 7 In Functions Of Bv-2 Microglia, Yawen Hu, Rebecca A. Hill, Masami Yoshimura

School of Medicine Faculty Publications

To assess the role of adenylyl cyclase type 7 (AC7) in microglia’s immune function, we generated AC7 gene knockout (AC7 KO) clones from a mouse microglial cell line, BV-2, using the CRISPR-Cas9 gene editing system. The ability of BV-2 cells to generate cAMP and their innate immune functions were examined in the presence or absence of ethanol. The parental BV-2 cells showed robust cAMP production when stimulated with prostaglandin-E1 (PGE1) and ethanol increased cAMP production in a dose-dependent manner. AC7 KO clones of BV-2 cells showed diminished and ethanol-insensitive cAMP production. The phagocytic activity of the parental BV-2 cells was …


Discovering The Role Of Repeat Sequences In Regulation Of The Phaz Gene In Streptomyces Sp. Sfb5a, Harrison Senter, Stephen Baron Apr 2022

Discovering The Role Of Repeat Sequences In Regulation Of The Phaz Gene In Streptomyces Sp. Sfb5a, Harrison Senter, Stephen Baron

Honors Projects

Streptomyces sp. SFB5A is an actinomycete (filamentous bacterium) that degrades PHB using an extracellular PHB depolymerase. PHB depolymerase synthesis is induced by growth on PHB and repressed by glucose (or other preferred carbon sources)2, which suggests that there is transcriptional regulation of its corresponding gene, phaZ. Binding sites are suspected to be the repeat sequences found in the phaZ gene. There are 3 different sets of primers that can be made in order to emphasize specific functional repeats while disrupting the functionality of others. The goal of the project is to transform Streptomyces sp. 5A with constructs …


Topoisomerase And Tyrosyl-Dna-Phosphodiesterase Ratio As An Indicator For The Response Of Glioblastoma Cancer To Topoisomerase Targeting Anticancer Drugs, Wenjie Wang Jun 2019

Topoisomerase And Tyrosyl-Dna-Phosphodiesterase Ratio As An Indicator For The Response Of Glioblastoma Cancer To Topoisomerase Targeting Anticancer Drugs, Wenjie Wang

FIU Electronic Theses and Dissertations

Glioblastoma (GBM) patients have an estimated survival of ~15 months, with the standard of care (surgery, radiation, and chemotherapy) that has only modestly enhanced patient survival. Identifying biomarkers representing vulnerabilities in GBM biology may allow for the selection of effective and safe chemotherapy options. Irinotecan (IRT), a genotoxic compound currently in clinical trials for GBM, targets topoisomerase I (TOP1) by forming an irreversible ternary DNA-TOP1 cleavage complex (TOP1cc) and leads to apoptosis. Tyrosyl-DNA phosphodiesterase 1 (TDP1) is a crucial repair enzyme that rescues TOP1cc and reduces the effectiveness of IRT. In the current study, we evaluate the value of the …


Implications Of Genetic Variation Of Common Drug Metabolizing Enzymes And Abc Transporters Among The Pakistani Population, Nasir Ali Afsar, Henrike Bruckmueller, Anneke Nina Werk, Muhammad Kashif Nisa, H R. Ahmad, Ingolf Cascorbi May 2019

Implications Of Genetic Variation Of Common Drug Metabolizing Enzymes And Abc Transporters Among The Pakistani Population, Nasir Ali Afsar, Henrike Bruckmueller, Anneke Nina Werk, Muhammad Kashif Nisa, H R. Ahmad, Ingolf Cascorbi

Department of Biological & Biomedical Sciences

Genetic polymorphism of drug metabolizing enzymes and transporters may influence drug response. The frequency varies substantially between ethnicities thus having implications on appropriate selection and dosage of various drugs in different populations. The distribution of genetic polymorphisms in healthy Pakistanis has so far not been described. In this study, 155 healthy adults (98 females) were included from all districts of Karachi. DNA was extracted from saliva and genotyped for relevant SNVs in CYP1A1, CYP2B6, CYP2C9, CYP2C19, CYP2D6, CYP3A4 and CYP3A5 as well as ALDH3A1, GSTA1, ABCB1 and ABCC2. About 64% of the participants were born to parents who were unrelated …