Current Search: Louda, Deborah W. (x)
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- Title
- Chemistry and biological activity of platinum (II) polyamines.
- Creator
- Brenner, Dora Lynn., Florida Atlantic University, Louda, Deborah W., Carraher, Charles E.
- Abstract/Description
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One of the most common chemotherapeutic drugs in use today is cis-DDP. While this substance has been found useful in the treatment of various malignant neoplasias, it also has many adverse side effects. Recently, polymeric cis-DDP analogs have been prepared using potassium tetrachloroplatinate and various diamines. Testing of these polymeric analogs has shown that some are biologically active while others are biologically inactive. The goal of this research was to investigate the possible...
Show moreOne of the most common chemotherapeutic drugs in use today is cis-DDP. While this substance has been found useful in the treatment of various malignant neoplasias, it also has many adverse side effects. Recently, polymeric cis-DDP analogs have been prepared using potassium tetrachloroplatinate and various diamines. Testing of these polymeric analogs has shown that some are biologically active while others are biologically inactive. The goal of this research was to investigate the possible reasons for the differences in biological activity which had been observed. The biological activity of the diamine components, the molecular weight of the polymers, and the degradation of the polymers were examined to determine if any of these properties of the polymers could be correlated to their biological activities.
Show less - Date Issued
- 1988
- PURL
- http://purl.flvc.org/fcla/dt/14469
- Subject Headings
- Polyamines--Physiological effect
- Format
- Document (PDF)
- Title
- Cytokinetic effects of platinum (II) polyamines on three different cell lines using flow cytometry.
- Creator
- Fitch, Claire E., Florida Atlantic University, Hartmann, James X., Louda, Deborah W.
- Abstract/Description
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The association between cytotoxicity and cell cycle perturbation caused by cisplatin and two platinum (II) polyamines, containing a methotrexate or a 2-chloro-p-phenylenediamine component, was investigated in human ovarian carcinoma cells (CAOV3), murine Balb 3T3 fibroblasts and Chinese ovarian hamster cells by flow cytometric DNA/protein, DNA/RNA and DNA degradation assays. Continuous in vitro drug exposure caused a time- and dose-dependent suppression of growth. Flow cytometric analysis...
Show moreThe association between cytotoxicity and cell cycle perturbation caused by cisplatin and two platinum (II) polyamines, containing a methotrexate or a 2-chloro-p-phenylenediamine component, was investigated in human ovarian carcinoma cells (CAOV3), murine Balb 3T3 fibroblasts and Chinese ovarian hamster cells by flow cytometric DNA/protein, DNA/RNA and DNA degradation assays. Continuous in vitro drug exposure caused a time- and dose-dependent suppression of growth. Flow cytometric analysis revealed a multiplicity of cytokinetic perturbations, the most important of which was Go/G1 depletion and S phase arrest. The latter correlated with inhibition of DNA synthesis and subsequent inhibition of RNA and protein synthesis. Prolonged S phase arrest concomitant with DNA degradation, followed by RNA and protein degradation, resulted in cell death via apoptosis. The platinum polymers appear to be effective in vitro chemotherapeutic agents. The study of cytokinetic perturbations is useful in determining the relative potency of antitumor drugs and in monitoring drug effectiveness during treatment.
Show less - Date Issued
- 1999
- PURL
- http://purl.flvc.org/fcla/dt/15626
- Subject Headings
- Cisplatin, Cell lines, Flow cytometry, Polymers
- Format
- Document (PDF)
- Title
- Initial evaluation of organotin monomers and polymers as potential anticancer agents.
- Creator
- Doucette, Randy D., Florida Atlantic University, Louda, Deborah W.
- Abstract/Description
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A large number of metal-containing compounds show significant activity against cancer cells and incorporating a metal into a polymer offers several possible advantages. Compounds of the type R2SnCl2 (R = methyl, ethyl, propyl, butyl, t-butyl, octyl and phenyl) were tested for the ability to inhibit the growth of Balb 3T3 mouse fibroblast cells and CAOV3 human ovarian carcinoma cells. Polymers of 2-chloro-1,4-benzenediamine and the same organotin dichloride were synthesized and tested as well....
Show moreA large number of metal-containing compounds show significant activity against cancer cells and incorporating a metal into a polymer offers several possible advantages. Compounds of the type R2SnCl2 (R = methyl, ethyl, propyl, butyl, t-butyl, octyl and phenyl) were tested for the ability to inhibit the growth of Balb 3T3 mouse fibroblast cells and CAOV3 human ovarian carcinoma cells. Polymers of 2-chloro-1,4-benzenediamine and the same organotin dichloride were synthesized and tested as well. For both monomers and polymers, the pattern of growth inhibition relative to the R group was butyl > propyl = t-butyl = octyl = phenyl > ethyl > methyl. This and other aspects of the structure-activity relationship of the monomers and polymers were examined.
Show less - Date Issued
- 2006
- PURL
- http://purl.flvc.org/fcla/dt/13410
- Subject Headings
- Apoptosis--Molecular aspects, Polymeric composites, Organometallic compounds, Cancer--Molecular aspects, Antineoplastic agents--Testing, Polymers in medicine
- Format
- Document (PDF)
- Title
- The synthesis of chitosan-cis-DDP derivative.
- Creator
- Francis, Ann-Marie, Florida Atlantic University, Louda, Deborah W., Carraher, Charles E.
- Abstract/Description
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The formation of polymeric derivatives of the cancer drug Cis-dichlorodiaminoplatinum (II), cis-DDP, by the reaction of (1-4)-2-acetamide-2-deoxy-beta-D-glucose (Chitosan) with potassium tetrachloroplatinate is reported. Chelation of (1-4)-2-acetamide-2-deoxy-beta-D-glucose by tetrachloroplatinum (II) occurred through the amine groups leaving the hydroxyls unreacted and free to assist in making the products water soluble. It was hoped that such compounds would retain the anti tumor activity...
Show moreThe formation of polymeric derivatives of the cancer drug Cis-dichlorodiaminoplatinum (II), cis-DDP, by the reaction of (1-4)-2-acetamide-2-deoxy-beta-D-glucose (Chitosan) with potassium tetrachloroplatinate is reported. Chelation of (1-4)-2-acetamide-2-deoxy-beta-D-glucose by tetrachloroplatinum (II) occurred through the amine groups leaving the hydroxyls unreacted and free to assist in making the products water soluble. It was hoped that such compounds would retain the anti tumor activity of cis-DDP but produce fewer toxic side effects. Structural characterization involved infrared spectroscopy, mass spectroscopy, EDAX analytical methods. Products were also analyzed using light scattering photometry, elemental analysis and solubility studies. Additionally, the biological activity of water-soluble products was tested against selected cell lines.
Show less - Date Issued
- 1999
- PURL
- http://purl.flvc.org/fcla/dt/15699
- Subject Headings
- Chitosan, Polymeric drugs
- Format
- Document (PDF)
- Title
- SQER.
- Creator
- Chamely-Wiik, Donna M., Haky, Jerome E., Louda, Deborah W., Romance, Nancy
- Date Issued
- 2014-03-11
- PURL
- http://purl.flvc.org/fau/flvc_fau_islandoraimporter_10.1021_ed300689n_1521555360
- Format
- Citation