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Novel Amino Acid Transporter-Targeted Radiotracers For Breast Cancer Imaging, Fanlin Kong Dec 2011

Novel Amino Acid Transporter-Targeted Radiotracers For Breast Cancer Imaging, Fanlin Kong

Dissertations & Theses (Open Access)

Breast cancer is the most common malignancy among women in the world. Its 5-year survival rate ranges from 23.4% in patients with stage IV to 98% in stage I disease, highlighting the importance of early detection and diagnosis. 18F-2-Fluoro-2-deoxy-glucose (18F-FDG), using positron emission tomography (PET), is the most common functional imaging tool for breast cancer diagnosis currently. Unfortunately, 18F-FDG-PET has several limitations such as poorly differentiating tumor tissues from inflammatory and normal brain tissues. Therefore, 18F-labeled amino acid-based radiotracers have been reported as an alternative, which is based on the fact that tumor cells uptake …


Functional Characterization And Analgesic Effects Of Mixed Cannabinoid Receptor/T-Type Channel Ligands, Haitao You, Vinicius M. Gadotti, Ravil R. Petrov, Gerald W. Zamponi, Philippe Diaz Nov 2011

Functional Characterization And Analgesic Effects Of Mixed Cannabinoid Receptor/T-Type Channel Ligands, Haitao You, Vinicius M. Gadotti, Ravil R. Petrov, Gerald W. Zamponi, Philippe Diaz

Biomedical and Pharmaceutical Sciences Faculty Publications

Background: Both T-type calcium channels and cannabinoid receptors modulate signalling in the primary afferent pain pathway. Here, we investigate the analgesics activities of a series of novel cannabinoid receptor ligands with T-type calcium channel blocking activity. Results: Novel compounds were characterized in radioligand binding assays and in vitro functional assays at human and rat CB1 and CB2 receptors. The inhibitory effects of these compounds on transient expressed human T-type calcium channels were examined in tsA-201 cells using standard whole-cell voltage clamp techniques, and their analgesic effects in response to various administration routes (intrathecally, intraplantarly, intraperitoneally) assessed in the formalin model. …


Neuroprotective Effects Of Bilobalide Are Accompanied By A Reduction Of Ischemia-Induced Glutamate Release In Vivo, Dorothee Lang, Cornelia Kiewert, Alexander Mdzinarishvili, Tina Maria Schwarzkopf, Rachita K. Sumbria, Joachim Hartmann, Jochen Klein Oct 2011

Neuroprotective Effects Of Bilobalide Are Accompanied By A Reduction Of Ischemia-Induced Glutamate Release In Vivo, Dorothee Lang, Cornelia Kiewert, Alexander Mdzinarishvili, Tina Maria Schwarzkopf, Rachita K. Sumbria, Joachim Hartmann, Jochen Klein

Pharmacy Faculty Articles and Research

Neuroprotective properties of bilobalide, a specific constituent of Ginkgo extracts, were tested in a mouse model of stroke. After 24 h of middle cerebral artery occlusion (MCAO), bilobalide reduced infarct areas in the core region (striatum) by 40–50% when given at 10 mg/kg 1 h prior to MCAO. Neuroprotection was also observed at lower doses, or when the drug was given 1 h past stroke induction. Sensorimotor function in mice was improved by bilobalide as shown by corner and chimney tests. When brain metabolism in situ was monitored by microdialysis, MCAO caused a rapid disappearance of extracellular glucose in the …


Formulation Of Buprenorphine For Sublingual Use In Neonates., Ellena A Anagnostis, Rania E Sadaka, Linda A Sailor, David E Moody, Kevin C Dysart, Walter K. Kraft Oct 2011

Formulation Of Buprenorphine For Sublingual Use In Neonates., Ellena A Anagnostis, Rania E Sadaka, Linda A Sailor, David E Moody, Kevin C Dysart, Walter K. Kraft

Department of Pharmacology and Experimental Therapeutics Faculty Papers

OBJECTIVES: The only medication used sublingually in the neonate is buprenorphine for the treatment of neonatal abstinence syndrome (NAS). Compared with morphine, buprenorphine reduces the length of treatment and length of hospitalization in neonates treated for NAS. The objective of this study was to characterize the stability of ethanolic buprenorphine for sublingual administration.

METHODS: Buprenorphine solution was prepared and stored in amber glass source bottles at either 68°F to 77°F (20°C-25°C) or 36°F to 46°F (2.2°C-7.8°C). Samples were collected from each of these batches on days 0, 3, 7, 14, and 30. Additional samples were withdrawn at baseline from each …


A Model Of Intracellular Θ Phase Precession Dependent On Intrinsic Subthreshold Membrane Currents., L Stan Leung Aug 2011

A Model Of Intracellular Θ Phase Precession Dependent On Intrinsic Subthreshold Membrane Currents., L Stan Leung

Physiology and Pharmacology Publications

A hippocampal place cell fires at an increasingly earlier phase in relation to the extracellular theta rhythm as a rodent moves through the place field. The present report presents a compartment model of a CA1 pyramidal cell that explains the increase in amplitude and the phase precession of intracellular theta oscillations, with the assumption that the cell receives an asymmetric ramp depolarization (<10 >mV) in the place field and rhythmic inhibitory and/or excitatory synaptic driving. Intracellular subthreshold membrane potential oscillations (MPOs) increase in amplitude and frequency, and show phase precession within the place field. Theta phase precession and MPO power …


The Incidence Of Deep Vein Thrombosis Detected By Routine Surveillance Ultrasound In Neurosurgery Patients Receiving Dual Modality Prophylaxis., Patricia C Henwood, Thomas M Kennedy, Lynda Thomson, Taki Galanis, George L Tzanis, Geno J Merli, Walter K. Kraft Aug 2011

The Incidence Of Deep Vein Thrombosis Detected By Routine Surveillance Ultrasound In Neurosurgery Patients Receiving Dual Modality Prophylaxis., Patricia C Henwood, Thomas M Kennedy, Lynda Thomson, Taki Galanis, George L Tzanis, Geno J Merli, Walter K. Kraft

Department of Pharmacology and Experimental Therapeutics Faculty Papers

The optimal method of thromboprophylaxis and the value of screening ultrasonography for detection of deep venous thrombosis (DVT) in neurosurgery patients remains unclear. The goal of this study was to determine the incidence of DVT in neurosurgical patients who, by hospital protocol, receive surveillance ultrasonography of the lower extremities twice weekly, in addition to prophylaxis with unfractionated heparin and external pneumatic compression sleeves. A retrospective review of 7,298 ultrasound studies carried out on 2,593 patients over 4 years at a university neurosurgical hospital was conducted. There was a 7.4% incidence of proximal lower extremity DVT and a 9.7% total incidence …


Specificity And Actions Of An Arylaspartate Inhibitor Of Glutamate Transport At The Schaffer Collateral-Ca1 Pyramidal Cell Synapse, Weinan Sun, Katie M. Hoffman, David C. Holley, Michael P. Kavanaugh Aug 2011

Specificity And Actions Of An Arylaspartate Inhibitor Of Glutamate Transport At The Schaffer Collateral-Ca1 Pyramidal Cell Synapse, Weinan Sun, Katie M. Hoffman, David C. Holley, Michael P. Kavanaugh

Biomedical and Pharmaceutical Sciences Faculty Publications

In this study we characterized the pharmacological selectivity and physiological actions of a new arylaspartate glutamate transporter blocker, L-threo-beta-benzylaspartate (L-TBA). At concentrations up to 100 mu M, L-TBA did not act as an AMPA receptor (AMPAR) or NMDA receptor (NMDAR) agonist or antagonist when applied to outside-out patches from mouse hippocampal CA1 pyramidal neurons. L-TBA had no effect on the amplitude of field excitatory postsynaptic potentials (fEPSPs) recorded at the Schaffer collateral-CA1 pyramidal cell synapse. Excitatory postsynaptic currents (EPSCs) in CA1 pyramidal neurons were unaffected by L-TBA in the presence of physiological extracellular Mg(2+) concentrations, but in Mg(2+)-free solution, EPSCs …


Specificity And Actions Of An Arylaspartate Inhibitor Of Glutamate Transport At The Schaffer Collateral-Ca1 Pyramidal Cell Synapse, Weinan Sun, Katie Hoffman, David C. Holley, Michael P. Kavanaugh Aug 2011

Specificity And Actions Of An Arylaspartate Inhibitor Of Glutamate Transport At The Schaffer Collateral-Ca1 Pyramidal Cell Synapse, Weinan Sun, Katie Hoffman, David C. Holley, Michael P. Kavanaugh

Biomedical and Pharmaceutical Sciences Faculty Publications

In this study we characterized the pharmacological selectivity and physiological actions of a new arylaspartate glutamate transporter blocker, L-threo-ß-benzylaspartate (L-TBA). At concentrations up to 100 µM, L-TBA did not act as an AMPA receptor (AMPAR) or NMDA receptor (NMDAR) agonist or antagonist when applied to outside-out patches from mouse hippocampal CA1 pyramidal neurons. L-TBA had no effect on the amplitude of field excitatory postsynaptic potentials (fEPSPs) recorded at the Schaffer collateral-CA1 pyramidal cell synapse. Excitatory postsynaptic currents (EPSCs) in CA1 pyramidal neurons were unaffected by L-TBA in the presence of physiological extracellular Mg2+ concentrations, but in Mg2+-free solution, EPSCs were …


Clinical Pharmacology As A Foundation For Translational Science., Scott A. Waldman, R J. Hohl, G L. Kearns, S J. Swan, A Terzic Jul 2011

Clinical Pharmacology As A Foundation For Translational Science., Scott A. Waldman, R J. Hohl, G L. Kearns, S J. Swan, A Terzic

Department of Pharmacology and Experimental Therapeutics Faculty Papers

The evolution of enabling technologies and their associated perspectives into molecular mechanisms underlying disease has extended beyond the abilities of scientific and clinical structures to advance their translation into new algorithms that improve the health of patients and populations.1 Research programs have yielded a vast array of novel molecules related to pathophysiological mechanisms that represent diagnostic and therapeutic targets which have the potential for personalized healthcare management. Yet, despite extraordinary scientific advances, routine successful translation of discovery into new therapeutic tools remains a distant vision. Beyond constraints in bridging discovery science with clinical translation due to obstacles in facilities, …


Distribution Of Propranolol In Periocular Tissues: A Comparison Of Topical And Systemic Administration, Jinsong Hao, Michael B. Yang, Hongzhou Liu, S. Kevin Li Jun 2011

Distribution Of Propranolol In Periocular Tissues: A Comparison Of Topical And Systemic Administration, Jinsong Hao, Michael B. Yang, Hongzhou Liu, S. Kevin Li

Pharmaceutical Science and Research

Purpose: Oral propranolol has become a promising treatment of capillary hemangiomas (CHs) despite concerns of side effects associated with systemic beta-blockers. The objective of this study was to investigate the distribution of propranolol in periocular tissues and in plasma after topical application of propranolol as compared with intravenous and oral administration of propranolol.

Methods: Each rabbit received propranolol as ophthalmic solution (1%) in one eye (1.5 mg dose), intravenous injection (1.5 mg dose), or commercially available propranolol oral solution (5 mg dose). The periocular tissues (e.g., eyelids and extraocular muscles) and blood were collected and assayed for propranolol. …


Chronic Diseases: The Emerging Pandemic., Andre Terzic, Scott A. Waldman Jun 2011

Chronic Diseases: The Emerging Pandemic., Andre Terzic, Scott A. Waldman

Department of Pharmacology and Experimental Therapeutics Faculty Papers

According to the 2011 World Health Organization Global Status Report, of the 57 million annual global deaths – a staggering 36 million or over 63% are due to chronic diseases.1 Four noncommunicable diseases - namely cardiovascular, cancer, diabetes, and chronic respiratory diseases - emerge as the leading cause of mortality in the world, accounting respectively for 17, 7.6, 4.2, and 1.3 million deaths based on the latest available global epidemiology data. By 2020, global deaths due to chronic diseases are projected to worsen by at least 15 to 20%. It is estimated that the four major noncommunicable diseases will …


Analysis Of Oocyte-Like Cells Differentiated From Porcine Fetal Skin-Derived Stem Cells, Paul W. Dyce, Wei Shen, Evanna Huynh, Hua Shao, Daniel A. F. Villagómez, Gerald M. Kidder, W. Allan King, Julang Li May 2011

Analysis Of Oocyte-Like Cells Differentiated From Porcine Fetal Skin-Derived Stem Cells, Paul W. Dyce, Wei Shen, Evanna Huynh, Hua Shao, Daniel A. F. Villagómez, Gerald M. Kidder, W. Allan King, Julang Li

Physiology and Pharmacology Publications

We previously reported the differentiation of cells derived from porcine female fetal skin into cells resembling germ cells and oocytes. A subpopulation of these cells expressed germ cell markers and formed aggregates resembling cumulus-oocyte complexes. Some of these aggregates extruded large oocyte-like cells (OLCs) that expressed markers consistent with those of oocytes. The objective of the current study was to further characterize OLCs differentiated from porcine skin-derived stem cells. Reverse transcriptase (RT)-polymerase chain reaction and Western blot revealed the expression of connexin37 and connexin43, both of which are characteristic of ovarian follicles. The expression of meiosis markers DMC1 and synaptonemal …


Analysis Of Oocyte-Like Cells Differentiated From Porcine Fetal Skin-Derived Stem Cells, Paul Dyce, Wei Shen, Evanna Huynh, Hua Shao, Daniel Villagómez, Gerald Kidder, W Allan King, Julang Li Apr 2011

Analysis Of Oocyte-Like Cells Differentiated From Porcine Fetal Skin-Derived Stem Cells, Paul Dyce, Wei Shen, Evanna Huynh, Hua Shao, Daniel Villagómez, Gerald Kidder, W Allan King, Julang Li

Paul W. Dyce

We previously reported the differentiation of cells derived from porcine female fetal skin into cells resembling germ cells and oocytes. A subpopulation of these cells expressed germ cell markers and formed aggregates resembling cumulus-oocyte complexes. Some of these aggregates extruded large oocyte-like cells (OLCs) that expressed markers consistent with those of oocytes. The objective of the current study was to further characterize OLCs differentiated from porcine skin-derived stem cells. Reverse transcriptase (RT)-polymerase chain reaction and Western blot revealed the expression of connexin37 and connexin43, both of which are characteristic of ovarian follicles. The expression of meiosis markers DMC1 and synaptonemal …


Differential Subcellular Distribution Of Rat Brain Dopamine Receptors And Subtype-Specific Redistribution Induced By Cocaine., Pamela J Voulalas, John Schetz, Ashiwel S Undieh Mar 2011

Differential Subcellular Distribution Of Rat Brain Dopamine Receptors And Subtype-Specific Redistribution Induced By Cocaine., Pamela J Voulalas, John Schetz, Ashiwel S Undieh

College of Pharmacy Faculty Papers

We investigated the subcellular distribution of dopamine D(1), D(2) and D(5) receptor subtypes in rat frontal cortex, and examined whether psychostimulant-induced elevation of synaptic dopamine could alter the receptor distribution. Differential detergent solubilization and density gradient centrifugation were used to separate various subcellular fractions, followed by semi-quantitative determination of the relative abundance of specific receptor proteins in each fraction. D(1) receptors were predominantly localized to detergent-resistant membranes, and a portion of these receptors also floated on sucrose gradients. These properties are characteristic of proteins found in lipid rafts and caveolae. D(2) receptors exhibited variable distribution between cytoplasmic, detergent-soluble and detergent-resistant …


Unifying The Mathematical Modeling Of In Vivo And In Vitro Microdialysis, Peter M. Bungay, Rachita K. Sumbria, Ulrich Bickel Jan 2011

Unifying The Mathematical Modeling Of In Vivo And In Vitro Microdialysis, Peter M. Bungay, Rachita K. Sumbria, Ulrich Bickel

Pharmacy Faculty Articles and Research

A unifying approach is presented for developing mathematical models of microdialysis that are applicable to both in vitro and in vivo situations. Previous models for cylindrical probes have been limited by accommodating analyte diffusion through the surrounding medium in the radial direction only, i.e., perpendicular to the probe axis, or by incomplete incorporation of diffusion in the axial direction. Both radial and axial diffusion are included in the present work by employing two-dimensional finite element analysis. As in previous models, the nondimensional clearance modulus (Θ) represents the degree to which analyte clearance from the external medium influences diffusion through the …


An Evidence-Based Review Of Fat Modifying Supplemental Weight Loss Products., Amy M Egras, William R Hamilton, Thomas L Lenz, Michael S Monaghan Jan 2011

An Evidence-Based Review Of Fat Modifying Supplemental Weight Loss Products., Amy M Egras, William R Hamilton, Thomas L Lenz, Michael S Monaghan

College of Pharmacy Faculty Papers

Objective. To review the literature on fat modifying dietary supplements commonly used for weight loss. Methods. Recently published randomized, placebo-controlled trials were identified in PubMed, MEDLINE, International Pharmaceutical Abstracts, Cochrane Database, and Google Scholar using the search terms dietary supplement, herbal, weight loss, obesity, and individual supplement names. Discussion. Data for conjugated linoleic acid (CLA), Garcinia cambogia, chitosan, pyruvate, Irvingia gabonensis, and chia seed for weight loss were identified. CLA, chitosan, pyruvate, and Irvingia gabonensis appeared to be effective in weight loss via fat modifying mechanisms. However, the data on the use of these products is limited. Conclusion. Many obese …


The Effects Of Laropiprant, A Selective Prostaglandin D₂ Receptor 1 Antagonist, On The Antiplatelet Activity Of Clopidogrel Or Aspirin., Aimee Dallob, Wen-Lin Luo, Julie Mabalot Luk, Lisa Ratcliffe, Amy O Johnson-Levonas, Jules I Schwartz, Victor Dishy, Walter K. Kraft, Jan N De Hoon, Anne Van Hecken, Inge De Lepeleire, Waldemar Radziszewski, John A Wagner, Eseng Lai Jan 2011

The Effects Of Laropiprant, A Selective Prostaglandin D₂ Receptor 1 Antagonist, On The Antiplatelet Activity Of Clopidogrel Or Aspirin., Aimee Dallob, Wen-Lin Luo, Julie Mabalot Luk, Lisa Ratcliffe, Amy O Johnson-Levonas, Jules I Schwartz, Victor Dishy, Walter K. Kraft, Jan N De Hoon, Anne Van Hecken, Inge De Lepeleire, Waldemar Radziszewski, John A Wagner, Eseng Lai

Department of Pharmacology and Experimental Therapeutics Faculty Papers

Laropiprant (LRPT) is being developed in combination with Merck's extended-release niacin (ERN) formulation for the treatment of dyslipidemia. LRPT, an antagonist of the prostaglandin PGD₂ receptor DP1, reduces flushing symptoms associated with ERN. LRPT also has affinity for the thromboxane A₂ receptor TP (approximately 190-fold less potent at TP compared with DP1). Aspirin and clopidogrel are two frequently used anti-clotting agents with different mechanisms of action. Since LRPT may potentially be co-administered with either one of these agents, these studies were conducted to assess the effects of steady-state LRPT on the antiplatelet activity of steady-state clopidogrel or aspirin. Bleeding time …


From Good Intentions To Proven Interventions: Effectiveness Of Actions To Reduce The Health Impacts Of Air Pollution, Luisa V. Giles, Prabjit Barn, Nino Kuenzli, Isabelle Romieu, Murray A. Mittleman, Stephan Van Eeden, Ryan Allen, Chris Carlsten, Dave Stieb, Curtis W. Noonan, Audrey Smargiassi, Joel D. Kaufman, Shakoor Hajat, Tom Kosatsky, Michael Brauer Jan 2011

From Good Intentions To Proven Interventions: Effectiveness Of Actions To Reduce The Health Impacts Of Air Pollution, Luisa V. Giles, Prabjit Barn, Nino Kuenzli, Isabelle Romieu, Murray A. Mittleman, Stephan Van Eeden, Ryan Allen, Chris Carlsten, Dave Stieb, Curtis W. Noonan, Audrey Smargiassi, Joel D. Kaufman, Shakoor Hajat, Tom Kosatsky, Michael Brauer

Biomedical and Pharmaceutical Sciences Faculty Publications

BACKGROUND: Associations between air pollution and a multitude of health effects are now well established. Given ubiquitous exposure to some level of air pollution, the attributable health burden can be high, particularly for susceptible populations. OBJECTIVES: An international multidisciplinary workshop was convened to discuss evidence of the effectiveness of actions to reduce health impacts of air pollution at both the community and individual level. The overall aim was to summarize current knowledge regarding air pollution exposure and health impacts leading to public health recommendations. DISCUSSION: During the workshop, experts reviewed the biological mechanisms of action of air pollution in the …


The Central Cavity In Trimeric Glutamate Transporters Restricts Ligand Diffusion, Gregory Patrick Leary, David Charles Holley, Emily F. Stone, Brent Russell Lyda, Leonid Kalachev, Michael Kavanaugh Jan 2011

The Central Cavity In Trimeric Glutamate Transporters Restricts Ligand Diffusion, Gregory Patrick Leary, David Charles Holley, Emily F. Stone, Brent Russell Lyda, Leonid Kalachev, Michael Kavanaugh

Biomedical and Pharmaceutical Sciences Faculty Publications

A prominent aqueous cavity is formed by the junction of three identical subunits in the excitatory amino acid transporter (EAAT) family. To investigate the effect of this structure on the interaction of ligands with the transporter, we recorded currents in voltage-clamped Xenopus oocytes expressing EAATs and used concentration jumps to measure binding and unbinding rates of a high-affinity aspartate analog that competitively blocks transport (β-2-fluorenyl-aspartylamide; 2-FAA). The binding rates of the blocker were approximately one order of magnitude slower than l-Glu and were not significantly different for EAAT1, EAAT2, or EAAT3, but 2-FAA exhibited higher affinity for the neuronal transporter …


Lesion Of Cholinergic Neurons In Nucleus Basalis Enhances Response To General Anesthetics, Leung L. Stan Jan 2011

Lesion Of Cholinergic Neurons In Nucleus Basalis Enhances Response To General Anesthetics, Leung L. Stan

Physiology and Pharmacology Publications

Acetylcholine in the brain has been associated with consciousness and general anesthesia effects. We tested the hypothesis that the integrity of the nucleus basalis magnocellularis (NBM) affects the response to general anesthetics. Cholinergic neurons in NBM were selectively lesioned by bilateral infusion of 192IgG-saporin in adult, male Long–Evans rats, and control rats were infused with saline. Depletion of choline-acetyltransferase (ChAT)-immunoreactive cells in the NBM and decrease in optical density of acetylcholinesterase (AChE) staining in the frontal and visual cortices confirmed a significant decrease in NBM cholinergic neurons in lesioned as compared to control rats. AChE staining in the hippocampus and …


Targeted Decorin Gene Therapy Delivered With Adeno-Associated Virus Effectively Retards Corneal Neovascularization In Vivo, Rajiv R. Mohan, Jonathan C. K. Tovey, Ajay Sharma, Gregory S. Schultz, John W. Cowden, Ashish Tandon Jan 2011

Targeted Decorin Gene Therapy Delivered With Adeno-Associated Virus Effectively Retards Corneal Neovascularization In Vivo, Rajiv R. Mohan, Jonathan C. K. Tovey, Ajay Sharma, Gregory S. Schultz, John W. Cowden, Ashish Tandon

Pharmacy Faculty Articles and Research

Decorin, small leucine-rich proteoglycan, has been shown to modulate angiogenesis in nonocular tissues. This study tested a hypothesis that tissue-selective targeted decorin gene therapy delivered to the rabbit stroma with adeno-associated virus serotype 5 (AAV5) impedes corneal neovascularization (CNV) in vivo without significant side effects. An established rabbit CNV model was used. Targeted decorin gene therapy in the rabbit stroma was delivered with a single topical AAV5 titer (100 μl; 5x10^12 vg/ml) application onto the stroma for two minutes after removing corneal epithelium. The levels of CNV were examined with stereomicroscopy, H&E staining, lectin, collagen type IV, CD31 immunocytochemistry and …


Click Chemistry Inspired One-Pot Synthesis Of 1, 4-Disubstituted 1, 2, 3-Triazoles And Their Src Kinase Inhibitory Activity, Dalip Kumar, V. Buchi Reddy, Anil Kumar, Deendayal Mandal, Rakesh Tiwari, Keykavous Parang Jan 2011

Click Chemistry Inspired One-Pot Synthesis Of 1, 4-Disubstituted 1, 2, 3-Triazoles And Their Src Kinase Inhibitory Activity, Dalip Kumar, V. Buchi Reddy, Anil Kumar, Deendayal Mandal, Rakesh Tiwari, Keykavous Parang

Pharmacy Faculty Articles and Research

Two classes of 1,4-disubstituted 1,2,3-triazoles were synthesized using one-pot reaction of α-tosyloxy ketones/α-halo ketones, sodium azide, and terminal alkynes in the presence of aq. PEG (1:1, v/v) using the click chemistry approach and evaluated for Src kinase inhibitory activity. Structure-activity relationship analysis demonstrated that insertion of C6H5- and 4-CH3C6H4- at position 4 for both classes and less bulkier aromatic group at position 1 in class 1 contribute critically to the modest Src inhibition activity (IC50 = 32-43 µM) of 1,4-disubstituted 1,2,3-triazoles.


Thiazolyl N-Benzyl-Substituted Acetamide Derivatives: Synthesis, Src Kinase Inhibitory And Anticancer Activities, Asal Fallah-Tafti, Alireza Foroumadi, Rakesh Tiwari, Amir Nasrolahi Shirazi, David G. Hangauer, Yahao Bu, Tahmineh Akbarzadeh, Keykavous Parang, Abbas Shafiee Jan 2011

Thiazolyl N-Benzyl-Substituted Acetamide Derivatives: Synthesis, Src Kinase Inhibitory And Anticancer Activities, Asal Fallah-Tafti, Alireza Foroumadi, Rakesh Tiwari, Amir Nasrolahi Shirazi, David G. Hangauer, Yahao Bu, Tahmineh Akbarzadeh, Keykavous Parang, Abbas Shafiee

Pharmacy Faculty Articles and Research

KX2-391 (KX-01/Kinex Pharmaceuticals), N-benzyl-2-(5-(4-(2-morpholinoethoxy)phenyl)pyridin-2-yl)acetamide, is a highly selective Src substrate binding site inhibitor. To understand better the role of pyridine ring and N-benzylsubstitution in KX2-391 and establish the structure-activity relationship, a number of N-benzyl substituted (2-morpholinoethoxy)phenyl)thiazol-4-yl)acetamide derivatives containing thiazole instead of pyridine were synthesized and evaluated for Src kinase inhibitory activities. The unsubstituted N-benzyl derivative (8a) showed the inhibition of c-Src kinase with GI50 values of 1.34 μM and 2.30 M in NIH3T3/c-Src527F and SYF/c-Src527F cells, respectively. All the synthesized compounds were evaluated for inhibition of cell proliferation of human colon carcinoma (HT-29), breast carcinoma (BT-20), and leukemia (CCRF-CEM) cells. …


3-Substitued Indoles: One Pot Synthesis And Evaluation Of Anticancer And Src Kinase Inhibitory Activities, V. Kameshwara Rao, Bhupender S. Chhikara, Amir Nasrolahi Shirazi, Rakesh Tiwari, Keykavous Parang, Anil Kumar Jan 2011

3-Substitued Indoles: One Pot Synthesis And Evaluation Of Anticancer And Src Kinase Inhibitory Activities, V. Kameshwara Rao, Bhupender S. Chhikara, Amir Nasrolahi Shirazi, Rakesh Tiwari, Keykavous Parang, Anil Kumar

Pharmacy Faculty Articles and Research

An efficient and economical method was developed for the synthesis of 3-substituted indoles by one pot three-component coupling reaction of a substituted or unsubstituted benzaldehyde, N-methylaniline, and indole or N-methylindole using Yb(OTf)3-SiO2 as a catalyst. All the synthesized compounds were evaluated for inhibition of cell proliferation of human colon carcinoma (HT-29), human ovarian adenocarcinoma (SK-OV-3), and c-Src kinase activity. The 4-methylphenyl (4o and 4p) and 4-methoxyphenyl (4q) indole derivatives inhibited the cell proliferation of SK-OV-3 and HT-29 cells by 7077% at a concentration of 50 μM. The unsubstituted phenyl (4d) and 3-nitrophenyl (4l) derivatives showed the inhibition of c-Src kinase …


Polyethylenimine-Conjugated Gold Nanoparticles: Gene Transfer Potential And Low Toxicity In The Cornea, Ajay Sharma, Ashish Tandon, Jonathan C. K. Tovey, Rangan Gupta, J. David Robertson, Jennifer A. Fortune, Alexander M. Klibanov, John W. Cowden, Frank G. Rieger, Rajiv R. Mohan Jan 2011

Polyethylenimine-Conjugated Gold Nanoparticles: Gene Transfer Potential And Low Toxicity In The Cornea, Ajay Sharma, Ashish Tandon, Jonathan C. K. Tovey, Rangan Gupta, J. David Robertson, Jennifer A. Fortune, Alexander M. Klibanov, John W. Cowden, Frank G. Rieger, Rajiv R. Mohan

Pharmacy Faculty Articles and Research

This study examined the gene transfer efficiency and toxicity of 2-kDa polyethylenimine conjugated to gold nanoparticles (PEI2-GNP) in the human cornea in vitro and rabbit cornea in vivo. PEI2-GNP with nitrogen-to-phosphorus (N/P) ratios of up to 180 exhibited significant transgene delivery in the human cornea without altering the viability or phenotype of these cells. Similarly, PEI2-GNP applied to corneal tissues collected after 12 h, 72 h, or 7 days exhibited appreciable gold uptake throughout the rabbit stroma with gradual clearance of GNP over time. Transmission electron microscopy detected GNP in the keratocytes and the extracellular matrix of the rabbit corneas. …


Significant Inhibition Of Corneal Scarring In Vivo With Tissue-Selective, Targeted Aav5 Decorin Gene Therapy, Rajiv R. Mohan, Ashish Tandon, Ajay Sharma, John W. Cowden, Jonathan C. K. Tovey Jan 2011

Significant Inhibition Of Corneal Scarring In Vivo With Tissue-Selective, Targeted Aav5 Decorin Gene Therapy, Rajiv R. Mohan, Ashish Tandon, Ajay Sharma, John W. Cowden, Jonathan C. K. Tovey

Pharmacy Faculty Articles and Research

PURPOSE. This study tested a hypothesis that tissue-selective targeted decorin gene therapy delivered to the stroma with adeno-associated virus serotype 5 (AAV5) inhibits corneal fibrosis in vivo without significant side effects.

METHODS. An in vivo rabbit model of corneal fibrosis was used. Targeted decorin gene therapy was delivered to the rabbit cornea by a single topical application of AAV5 (100 L; 6.5 1012 g/mL) onto the bare stroma for 2 minutes. The levels of corneal fibrosis were determined with stereomicroscopy, slit lamp biomicroscopy, -smooth muscle actin ( SMA), fibronectin, and F-actin immunocytochemistry, and/or immunoblotting. CD11b, F4/80 immunocytochemistry, and TUNEL assay …


Efficacious And Safe Tissue-Selective Controlled Gene Therapy Approaches For The Cornea, Rajiv R. Mohan, Sunilima Sinha, Ashish Tandon, Rangan Gupta, Jonathan C. K. Tovey, Ajay Sharma Jan 2011

Efficacious And Safe Tissue-Selective Controlled Gene Therapy Approaches For The Cornea, Rajiv R. Mohan, Sunilima Sinha, Ashish Tandon, Rangan Gupta, Jonathan C. K. Tovey, Ajay Sharma

Pharmacy Faculty Articles and Research

Untargeted and uncontrolled gene delivery is a major cause of gene therapy failure. This study aimed to define efficient and safe tissue-selective targeted gene therapy approaches for delivering genes into keratocytes of the cornea in vivo using a normal or diseased rabbit model. New Zealand White rabbits, adeno-associated virus serotype 5 (AAV5), and a minimally invasive hair-dryer based vector-delivery technique were used. Fifty microliters of AAV5 titer (6.561012 vg/ml) expressing green fluorescent protein gene (GFP) was topically applied onto normal or diseased (fibrotic or neovascularized) rabbit corneas for 2-minutes with a custom vector-delivery technique. Corneal fibrosis and neovascularization in rabbit …


Synthesis Of 3-Phenylpyrazolopyrimidine-1,2,3-Triazole Conjugates And Evaluation Of Their Src Kinase Inhibitory And Anticancer Activities, Anil Kumar, Israr Ahmad, Bhupender S. Chhikara, Rakesh Tiwari, Deendayal Mandal, Keykavous Parang Jan 2011

Synthesis Of 3-Phenylpyrazolopyrimidine-1,2,3-Triazole Conjugates And Evaluation Of Their Src Kinase Inhibitory And Anticancer Activities, Anil Kumar, Israr Ahmad, Bhupender S. Chhikara, Rakesh Tiwari, Deendayal Mandal, Keykavous Parang

Pharmacy Faculty Articles and Research

A series of two classes of 3-phenylpyrazolopyrimidine-1,2,3-triazole conjugates were synthesized using click chemistry approach. All compounds were evaluated for inhibition of Src kinase and human ovarian adenocarcinoma (SK-Ov-3), breast carcinoma (MDA-MB-361), and colon adenocarcinoma (HT-29). Hexyl triazolyl-substituted 3-phenylpyrazolopyrimidine exhibited inhibition of Src kinase with an IC50 value of 5.6 µM. 4-Methoxyphenyl triazolyl-substituted 3-phenylpyrazolopyrimidine inhibited the cell proliferation of HT-29 and SK-Ov-3 by 73% and 58%, respectively, at a concentration of 50 µM.