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Biological Phenomena, Cell Phenomena, and Immunity Commons™
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Articles 1 - 6 of 6
Full-Text Articles in Biological Phenomena, Cell Phenomena, and Immunity
The Antibacterial And Anti-Biofilm Activity Of Metal Complexes Incorporating 3,6,9- Trioxaundecanedioate And 1,10-Phenanthroline Ligands In Clinical Isolates Of Pseudomonas Aeruginosa From Irish Cystic Fibrosis Patients, Megan O'Shaughnessy, Pauraic Mccarron, Livia Viganor, Malachy Mccann, Michael Devereux, Orla L. Howe
The Antibacterial And Anti-Biofilm Activity Of Metal Complexes Incorporating 3,6,9- Trioxaundecanedioate And 1,10-Phenanthroline Ligands In Clinical Isolates Of Pseudomonas Aeruginosa From Irish Cystic Fibrosis Patients, Megan O'Shaughnessy, Pauraic Mccarron, Livia Viganor, Malachy Mccann, Michael Devereux, Orla L. Howe
Articles
Chronic infections of Pseudomonas aeruginosa in the lungs of cystic fibrosis (CF) patients are problematic in Ireland where inherited CF is prevalent. The bacteria's capacity to form a biofilm in its pathogenesis is highly virulent and leads to decreased susceptibility to most antibiotic treatments. Herein, we present the activity profiles of the Cu(II), Mn(II) and Ag(I) tdda-phen chelate complexes {[Cu(3,6,9-tdda)(phen)2].3H2O.EtOH}n (Cu-tdda-phen), {[Mn(3,6,9-tdda)(phen)2].3H2O.EtOH}n (Mn-tdda-phen) and [Ag2(3,6,9-tdda)(phen)4].EtOH (Ag-tdda-phen) (tddaH2 = 3,6,9-trioxaundecanedioic acid; phen = 1,10-phenanthroline) towards clinical isolates of P. aeruginosa derived from Irish CF patients in comparison to two reference laboratory strains (ATCC 27853 and PAO1). The effects of the metal-tdda-phen …
A Chronic Strain Of The Cystic Fibrosis Pathogen Pandoraeapulmonicola Expresses A Heterogenous Hypo-Acylated Lipid A, Molly D. Pither, Siobhan Mcclean, Alba Silipo, Antonio Molinaro, Flaviana Di Lorenzo
A Chronic Strain Of The Cystic Fibrosis Pathogen Pandoraeapulmonicola Expresses A Heterogenous Hypo-Acylated Lipid A, Molly D. Pither, Siobhan Mcclean, Alba Silipo, Antonio Molinaro, Flaviana Di Lorenzo
Articles
Pandoraeasp. is an emerging Gram-negative pathogen in cystic fibrosis causing severe and persistent inflammation and damageof the lungs. The molecular mechanisms underlying the high pathogenicity ofPandoraeaspecies are still largely unknown. AsGram-negatives,Pandoraeasp. express lipopolysaccharides (LPS) whose recognition by the host immune system triggers aninflammatory response aimed at the bacterial eradication from the infected tissues. The degree of the inflammatory responsestrongly relies on the fine structure of the LPS and, in particular, of its glycolipid moiety, i.e. the lipid A. Here we report thestructure of the lipid A isolated from the LPS of a chronic strain ofP. pulmonicola(RL 8228), one of the …
Quantitative Assessment Of Blood Coagulation By Cold Atmospheric Plasma, Caitlin Heslin, Daniela Boehm, Vladimir Milosavljevic, Michelle Laycock, Patrick J. Cullen, Paula Bourke
Quantitative Assessment Of Blood Coagulation By Cold Atmospheric Plasma, Caitlin Heslin, Daniela Boehm, Vladimir Milosavljevic, Michelle Laycock, Patrick J. Cullen, Paula Bourke
Articles
Cold atmospheric plasma (CAP) is produced by ionizing a chosen gas, thereby creating charged and reactive species. The reactive species generated are capable of inducing a range of biomedically relevant interactions including blood coagulation. However, the underlying biochemical processes of plasma-assisted blood coagulation are largely unknown, and data quantifying blood clot formation or the impact of system parameters on the intensity of the blood clot are scarce. In this study, blood coagulation was quantified by measuring hemoglobin absorbance. System parameters of the kINPen plasma jet were investigated and compared, including treatment time, distance from the plasma source and gas flow …
Identification Of A 17-Nucleotide Splicing Enhancer In Hpv-16 L1 That Counteracts The Effect Of Multiple Hnrnp A1-Binding Splicing Silencers, Ziaomin Zhao, Joanna Fay, Stefan Schwartz, Helen Lambkin
Identification Of A 17-Nucleotide Splicing Enhancer In Hpv-16 L1 That Counteracts The Effect Of Multiple Hnrnp A1-Binding Splicing Silencers, Ziaomin Zhao, Joanna Fay, Stefan Schwartz, Helen Lambkin
Articles
Human papillomavirus type 16 (HPV-16) infections can in rare cases persist and cause lesions that may progress to cervical cancer. Cells in the lesions are not permissive for virus production, nor are cervical cancer cells. The intracellular environment is such that it prevents production of the highly immunogenic, viral structural proteins L1 and L2. One may speculate that inhibition of L1 and L2 expression is a prerequisite for persistence and cancer progression.We have therefore investigated how expression of HPV-16 L1 is regulated.We found that the only splice site in the HPV-16 late region, which is used to produce L1 mRNAs, …
Adenoviral Mediated Gene Transfer Into The Dog Brain In Vivo, Marianela Candolfi, Kurt Kroeger, Elizabeth Pluhar, Chunyan Liu, Carlos Barcia, Josee Bergeron, Mariana Puntel, James Curtin, Elizabeth Mcniel, Andrew Freese, John Ohlfest, Peter Moore, William Kuoy, Pedro Lowenstein, Maria Castro
Adenoviral Mediated Gene Transfer Into The Dog Brain In Vivo, Marianela Candolfi, Kurt Kroeger, Elizabeth Pluhar, Chunyan Liu, Carlos Barcia, Josee Bergeron, Mariana Puntel, James Curtin, Elizabeth Mcniel, Andrew Freese, John Ohlfest, Peter Moore, William Kuoy, Pedro Lowenstein, Maria Castro
Articles
OBJECTIVE: Glioblastoma multiforme (GBM) is a devastating brain tumor for which there is no cure. Adenoviral-mediated transfer of conditional cytotoxic (herpes simplex virus [HSV] 1-derived thymidine kinase [TK]) and immunostimulatory (Fms-like tyrosine kinase 3 ligand [Flt3L]) transgenes elicited immune-mediated long-term survival in a syngeneic intracranial GBM model in rodents. However, the lack of a large GBM animal model makes it difficult to predict the outcome of therapies in humans. Dogs develop spontaneous GBM that closely resemble the human disease; therefore, they constitute an excellent large animal model. We assayed the transduction efficiency of adenoviral vectors (Ads) encoding beta-galactosidase (betaGal), TK, …
Combining Cytotoxic And Immune-Mediated Gene Therapy To Treat Brain Tumors, James Curtin, Gwendalyn King, Marianela Candolfi, Remy Greeno, Kurt Kroeger, Pedro Lowenstein, Maria Castro
Combining Cytotoxic And Immune-Mediated Gene Therapy To Treat Brain Tumors, James Curtin, Gwendalyn King, Marianela Candolfi, Remy Greeno, Kurt Kroeger, Pedro Lowenstein, Maria Castro
Articles
Glioblastoma (GBM) is a type of intracranial brain tumor, for which there is no cure. In spite of advances in surgery, chemotherapy and radiotherapy, patients die within a year of diagnosis. Therefore, there is a critical need to develop novel therapeutic approaches for this disease. Gene therapy, which is the use of genes or other nucleic acids as drugs, is a powerful new treatment strategy which can be developed to treat GBM. Several treatment modalities are amenable for gene therapy implementation, e.g. conditional cytotoxic approaches, targeted delivery of toxins into the tumor mass, immune stimulatory strategies, and these will all …