Thomas Keck

 ThomasM. Keck

Thomas M. Keck

  • Courses2
  • Reviews2

Biography

Rowan University - Chemistry


Resume

  • 1570810

    TIME Person of the Year

    (Shared award)\nhttp://content.time.com/time/magazine/article/0

    00.html

    TIME Magazine

    Outstanding Oral Presentation

    Behavior

    Biology and Chemistry Conference

    NIDA-IRP Mentoring Award for Fellows

    Nominated award recognizing my commitment to mentoring younger scientists\n\nMore details here: http://irp.nih.gov/catalyst/v21i4/four-generations-of-mentors-and-more\n

    National Institute on Drug Abuse

    Deans' Scholar

    University of Southern California

    Steinberg Fund Travel Award

    Competitive research award providing travel funds.

    Oregon Health & Science University Department of Physiology & Pharmacology

    Fellows’ Award for Research Excellence

    Competitive research award providing travel support funds

    National Institutes of Health

    Fellows’ Award for Research Excellence

    Competitive research award providing travel support funds

    National Institutes of Health

    Behavior

    Biology and Chemistry Conference Travel Award

    Competitive research travel award providing travel support funds and an oral presentation opportunity

    Behavior

    Biology and Chemistry Conference

    Assistant Professor Travel Grant

    Rowan University

    National Graduate Student Research Festival invitee

    Competitive application to present thesis research at NIH

    National Institutes of Health

  • 2014

    Baltimore

    Maryland Area

    In vitro and in vivo pharmacological evaluation of novel pharmacotherapeutics for the treatment of drug addiction and other neuropsychiatric disorders:\n\n○ Evaluation of novel metabotropic glutamate receptor subtype 5 (mGlu5; mGluR5) negative allosteric modulators in vitro and in animal models of anxiety and cocaine addiction.\n > Keck TM

    Zou M-F

    Zhang P

    Rutledge RP

    Newman AH. (2012) Metabotropic glutamate receptor subtype 5 negative allosteric modulators as novel tools for in vivo investigation. ACS Med. Chem. Lett. 3(7): 544–549.\n > Keck TM

    Bi G-H

    Yang H-J

    Zhang H-Y

    Srivastava R

    Gardner EL

    Newman AH

    Xi Z-X. (2013) Fenobam sulfate inhibits cocaine-taking and cocaine-seeking behavior in rats: implications for translation. Psychopharmacology. 229(2): 253–265.\n > Keck TM

    Zou M-F

    Bi G-H

    Zhang H-Y

    Wang X-F

    Yang H-J

    Srivastava R

    Gardner EL

    Xi Z-X

    Newman AH. (2013) A novel mGluR5 antagonist

    MFZ 10-7

    inhibits cocaine-taking and cocaine-seeking behavior in rats. Addiction Biology. In press; E-pub September 4

    2013.\n\n○ Evaluation of novel dopamine D3 receptor-selective antagonists in vitro and in animal models of methamphetamine addiction.\n > Keck TM

    Burzynski C

    Shi L

    Newman AH. Beyond small molecule SAR – using the D3 receptor crystal structure to guide drug design. (2013) Invited review for Advances in Pharmacology. Volume 69

    Pages 267–300.\n\n○ Analyze the behavioral effects of methamphetamine neurotoxicity in animal models of cognition/memory with corresponding neurochemical and epigenetic marker evaluation.\n\n○ Determine the biased signaling properties of dopamine D2 receptor-selective agonists in vitro.

    IRTA Postdoctoral Fellow

    The National Institute on Drug Abuse (NIDA)

    Studied the influence of dopamine D4 receptor signaling on the behavioral responsiveness of mice to novel and anxiolytic stimuli and and the psychostimulant methylphenidate\n\n > Keck TM

    Suchland KL

    Jimenez CC

    Grandy DK. (2013) Dopamine D4 receptor deficiency in mice alters behavioral responses to anxiogenic stimuli and the psychostimulant methylphenidate. Pharmacology

    Biochemistry and Behavior. 103(4): 831–841.\n\nAdditional graduate research explored:\n\n○ Trace amine-associated receptor 1 (TAAR1) signaling in response to monoaminergic drugs\n\n○ Transcriptional effects of psychostimulant exposure in the mouse cortex via microarray\n\n○ Immune evasion by human cytomegalovirus\n\n > DeFilippis VR

    Robinson B

    Keck TM

    Hansen SG

    Nelson JA

    Früh KJ. (2006) Interferon regulatory factor 3 is necessary for induction of antiviral genes during human cytomegalovirus infection. J. Virol. 80(2): 1032–7.

    Ph.D. student

    Portland

    Oregon Area

    OHSU

    Vice President

    Mid-Atlantic Pharmacological Society

    Rowan University

    Society for Neuroscience-Greater Baltimore Chapter Poster Award

    Competitive award given to research presentations at annual meeting

    Society for Neuroscience-Greater Baltimore Chapter

    Behavior

    Biology and Chemistry Conference Travel Award

    Competitive research travel award providing travel support funds and an oral presentation opportunity

    Behavior

    Biology and Chemistry Conference

    NIH Postdoctoral Mentor Award

    Competitive award to mentor an outstanding community college student as part of the NIH's Summer Student Enrichment Program

    National Institutes of Health

    Deans' Scholar

    University of Southern California

    International Society of Neurochemistry Travel Award

    Competitive research award providing travel funds to present at annual society meeting

    International Society of Neurochemistry

    Maharaj Ticku Memorial Travel Fellowship for New Investigators Award

    The Maharaj Ticku Travel Fellowship is awarded annually to a new investigator who has completed but is not more than 4 years beyond completion of postdoctoral training and who has a full time position in academia and/or research. http://uthscsa.edu/artt/bbc/TravelAwards.asp

    Behavior

    Biology and Chemistry Conference

    Tartar Research Fellowship

    Competitive research award providing travel fund support

    Oregon Health & Science University

    Deans' Scholar

    University of Southern California

    Frances R. Lax Faculty Development Award

    Rowan University

  • 2012

    ACS Med Chem Lett. 2012. 3(7):544-549\n\nNegative allosteric modulators (NAMs) of metabotropic glutamate receptor subtype 5 (mGluR5) have shown promising results in preclinical models for anxiety and drug abuse. Here we describe a series of aryl-substituted alkynyl analogues of the prototypic mGluR5 NAM 2-methyl-6-(phenylethynyl)pyridine (MPEP

    1). Displacement of [(3)H]1 binding in rat brain membranes showed that several of these novel compounds displayed high affinity binding (K(i) < 10 nM) for mGluR5

    with up to a 24-fold increase in affinity over 1. Replacements of the 2-position Me on the pyridyl ring of 1 along with various 3'-CN

    5'-substitutions were generally well tolerated. All of the active analogues in this series had cLogP values in the 2-5 range and displayed inverse agonist characteristics in an ELISA-based assay of G(q)α-mediated IP3 production. Compounds 7i and 7j produced in vivo effects in mouse models of anxiety-like behaviors more potently than 1 or 3-((2-methyl-1

    3-thiazol-4-yl)ethynyl)pyridine (MTEP

    2)

    supporting their utility as in vivo tools.\n\nACS Med. Chem. Lett.

    3 (7)

    pp 544–549\nhttp://pubs.acs.org/doi/abs/10.1021/ml3000726

    Metabotropic Glutamate Receptor Subtype 5 Negative Allosteric Modulators as Novel Tools for In Vivo Investigation

    Thomas

    UCLA

    OHSU

    The National Institute on Drug Abuse (NIDA)

    Rowan University

    Studied the regulation of oligodendrocyte development and myelination by two proteins: K+ channel Kv3.1 and the tight-junction protein OSP/claudin-11\n\n > Tiwari-Woodruff S

    Beltran-Parrazal L

    Charles A

    Keck T

    Vu T

    Bronstein J. (2006) K+ channel Kv3.1 associates with OSP/claudin-11 and regulates oligodendrocyte development and myelination. Am. J. Physiol. Cell. Physiol. 291(4): C687–98.

    Reseach associate

    Greater Los Angeles Area

    UCLA

    Greater Philadelphia Area

    Department of Chemistry & Biochemistry\nDepartment of Molecular & Cellular Biosciences\nCollege of Science and Mathematics\n\nPrimary courses taught:\nGeneral Aspects of Pharmacology\nBiochemistry\nMedical Biochemistry\n\nResearch mentor for >100 undergraduate and M.S. students thus far!\n\nResearch focus: in vitro & in vivo pharmacology and medications development for neuropsychiatric disorders. Current projects include drug discovery for schizophrenia

    pain

    Alzheimer's disease

    and drug addiction.

    Associate Professor

    Rowan University

  • 2004

    Ph.D.

    Physiology & pharmacology

    Oregon Health and Science University

  • 1999

    B.S.

    Biomedical-biochemical engineering

    University of Southern California

  • 5

    Novel 1-

    5-

    and 8-substituted analogues of sumanirole (1)

    a dopamine D2/D3 receptor (D2R/D3R) agonist

    were synthesized. Binding affinities at both D2R and D3R were higher when determined in competition with the agonist radioligand [3H]7-hydroxy-N

    N-dipropyl-2-aminotetralin (7-OH-DPAT) than with the antagonist radioligand [3H]N-methylspiperone. Although 1 was confirmed as a D2R-preferential agonist

    its selectivity in binding and functional studies was lower than previously reported. All analogues were determined to be D2R/D3R agonists in both GoBRET and mitogenesis functional assays. Loss of efficacy was detected for the N-1-substituted analogues at D3R. In contrast

    the N-5-alkyl-substituted analogues

    and notably the n-butyl-arylamides (22b and 22c)

    all showed improved affinity at D2R over 1 with neither a loss of efficacy nor an increase in selectivity. Computational modeling provided a structural basis for the D2R selectivity of 1

    illustrating how subtle differences in the highly homologous orthosteric binding site (OBS) differentially affect D2R/D3R affinity and functional efficacy.

    Novel Analogues of (R)-5-(Methylamino)-5

    6-dihydro-4 H-imidazo [4

    1-ij] quinolin-2 (1 H)-one (Sumanirole) Provide Clues to Dopamine D2/D3 Receptor Agonist Selectivity

    Eliot L. Gardner

    Ratika Srivastava

    Hong-Ju Yang

    Hai-Ying Zhang

    Guo-Hua Bi

    Mu-Fa Zou

    Addict Biol. 2014. 19(2):195-209\n\nPre-clinical studies suggest that negative allosteric modulators (NAMs) of the metabotropic glutamate receptor subtype 5 (mGluR5)

    including 2-methyl-6-(phenylethynyl)pyridine (MPEP)

    3-[(2-methyl-1

    3-thiazol-4-yl)ethynyl]pyridine (MTEP) and fenobam are highly effective in attenuating drug-taking and drug-seeking behaviors. However

    both MPEP and MTEP have no translational potential for use in humans because of their off-target effects and short half-lives. Here

    we report that 3-fluoro-5-[(6-methylpyridin-2-yl)ethynyl]benzonitrile (MFZ 10-7)

    a novel mGluR5 NAM

    is more potent and selective than MPEP

    MTEP and fenobam in both in vitro binding and functional assays. Similar to MTEP

    intraperitoneal administration of MFZ 10-7 inhibited intravenous cocaine self-administration

    cocaine-induced reinstatement of drug-seeking behavior and cocaine-associated cue-induced cocaine-seeking behavior in rats. Although MFZ 10-7 and MTEP lowered the rate of oral sucrose self-administration

    they did not alter total sucrose intake. Further

    MFZ 10-7 appeared to be more potent than MTEP in inducing downward shifts in the cocaine dose-response curve

    but less effective than MTEP in attenuating sucrose-induced reinstatement of sucrose-seeking behavior. MFZ 10-7 and MTEP had no effect on basal locomotor behavior. These findings not only provide additional evidence supporting an important role for mGluR5 in cocaine reward and addiction

    but also introduce a new tool for both in vitro and in vivo investigations with which to further characterize this role.

    A novel mGluR5 antagonist

    MFZ 10-7

    inhibits cocaine-taking and cocaine-seeking behavior in rats

    Abstract\nThe dopamine D3 receptor (D3R) is a target for developing medications to treat substance use disorders. D3R-selective compounds with high affinity and varying efficacies have been discovered

    providing critical research tools for cell-based studies that have been translated to in vivo models of drug abuse. D3R antagonists and partial agonists have shown especially promising results in rodent models of relapse-like behavior

    including stress-

    drug-

    and cue-induced reinstatement of drug seeking. However

    to date

    translation to human studies has been limited. Herein

    we present an overview and illustrate some of the pitfalls and challenges of developing novel D3R-selective compounds toward clinical utility

    especially for treatment of cocaine abuse. Future research and development of D3R-selective antagonists and partial agonists for substance abuse remains critically important but will also require further evaluation and development of translational animal models to determine the best time in the addiction cycle to target D3Rs for optimal therapeutic efficacy.

    Identifying Medication Targets for Psychostimulant Addiction: Unraveling the Dopamine D3 Receptor Hypothesis

    Jeff Bronstein

    Trung Vu

    Andrew Charles

    Luis Beltran-Parrazal

    Am J Physiol Cell Physiol. 2006. 291(4):C687-98\n\nK+ channels are differentially expressed throughout oligodendrocyte (Olg) development. KV1 family voltage-sensitive K+ channels have been implicated in proliferation and migration of Olg progenitor cell (OPC) stage

    and inward rectifier K+ channels (KIR)4.1 are required for OPC differentiation to myelin-forming Olg. In this report we have identified a Shaw family K+ channel

    KV3.1

    that is involved in proliferation and migration of OPC and axon myelination. Application of anti-KV3.1 antibody or knockout of Kv3.1 gene decreased the sustained K+ current component of OPC by 50% and 75%

    respectively. In functional assays block of KV3.1-specific currents or knockout of Kv3.1 gene inhibited proliferation and migration of OPC. Adult Kv3.1 gene-knockout mice had decreased diameter of axons and decreased thickness of myelin in optic nerves compared with age-matched wild-type littermates. Additionally

    KV3.1 was identified as an associated protein of Olg-specific protein (OSP)/claudin-11 via yeast two-hybrid analysis

    which was confirmed by coimmunoprecipitation and coimmunohistochemistry. In summary

    the KV3.1 K+ current accounts for a significant component of the total K+ current in cells of the Olg lineage and

    in association with OSP/claudin-11

    plays a significant role in OPC proliferation and migration and myelination of axons.\n\nAm J Physiol Cell Physiol. 2006 Oct;291(4):C687-98. Epub 2006 Apr 19.\ndoi: 10.​1152/​ajpcell.​00510.​2005

    K+ channel Kv3.1 associates with OSP/claudin-11 and regulates oligodendrocyte development and myelination

    David K. Grandy

    Charles C. Jimenez

    Katherine L. Suchland

    Pharmacol Biochem Behav. 2013. 103(4):831-41\n\nAn allele of the human dopamine D4 receptor (D4R) gene (DRD4)...has been reproducibly found in novelty seekers

    substance abusers

    and individuals with attention-deficit hyperactivity disorder. One hypothesis predicts the resultant protein product of the DRD4.7 polymorphism is deficient in G protein-coupled signaling. If attenuated D4R signaling contributes to these complex behaviors

    then wild-type (WT) mice and mice completely lacking D4Rs (D4R KO) might be expected to display significantly different behavioral responses to stimuli known to affect dopamine signaling

    such as novelty or psychostimulants. Adolescent male D4R KO mice exhibited greater locomotor activity and spent less time in the anxiogenic center of a novel open field environment than WT littermates. The presence of D4Rs had no effect on emergence into a novel environment from a sheltered space or exploration of a novel object. Low doses of acute methylphenidate (MP) had no effect on the exploration of a novel object

    but dose-dependently increased the latency to emerge into a novel environment...WT and D4R KO mice responded differently to high doses of acute MP

    displaying significantly elevated locomotor activity and reduced stereotypy...Chronic MP produced enhanced locomotor sensitization in D4R KO mice

    however this effect could not be fully recapitulated using the putative D4R antagonist L-745-870. These studies suggest that the roles of D4R signaling in novelty-seeking behaviors and the response to psychostimulants are not as clear as previously reported

    and that some of these effects may be due to developmental compensatory effects as a consequence of lost D4R expression. If the DRD4.7 variant results in deficient D4R signaling in vivo

    this may contribute to an elevated risk of sensitization to drugs of abuse including psychostimulants used to treat ADHD.\n\nhttp://dx.doi.org/10.1016/j.pbb.2012.12.006

    Dopamine D4 Receptor Deficiency in Mice Alters Behavioral Responses to Anxiogenic Stimuli and the Psychostimulant Methylphenidate

    Lei Shi

    Caitlin Burzynski

    Adv Pharmacol. 2014. 69:267-300\n\nThe dopamine D3 receptor is a target of pharmacotherapeutic interest in a variety of neurological disorders including schizophrenia

    restless leg syndrome

    and drug addiction. The high protein sequence homology between the D3 and D2 receptors has posed a challenge to developing D3 receptor-selective ligands whose behavioral actions can be attributed to D3 receptor engagement

    in vivo. However

    through primarily small-molecule structure-activity relationship (SAR) studies

    a variety of chemical scaffolds have been discovered over the past two decades that have resulted in several D3 receptor-selective ligands with high affinity and in vivo activity. Nevertheless

    viable clinical candidates remain limited. The recent determination of the high-resolution crystal structure of the D3 receptor has invigorated structure-based drug design

    providing refinements to the molecular dynamic models and testable predictions about receptor-ligand interactions. This chapter will highlight recent preclinical and clinical studies demonstrating potential utility of D3 receptor-selective ligands in the treatment of addiction. In addition

    new structure-based rational drug design strategies for D3 receptor-selective ligands that complement traditional small-molecule SAR to improve the selectivity and directed efficacy profiles are examined.

    Beyond Small-Molecule SAR: Using the Dopamine D3 Receptor Crystal Structure to Guide Drug Design.

    Barbara Slusher

    Jonathan Javitch

    Prashant Donthamsetti

    Elie Pommier

    Caitlin Burzynski

    The dopamine D3 receptor (D3R) is a promising target for the development of pharmacotherapeutics to treat substance use disorders. Several D3R-selective antagonists are effective in animal models of drug abuse

    especially in models of relapse. Nevertheless

    poor bioavailability

    metabolic instability

    and/or predicted toxicity have impeded success in translating these drug candidates to clinical use. Herein

    we report a series of D3R-selective 4-phenylpiperazines with improved metabolic stability. A subset of these compounds was evaluated for D3R functional efficacy and off-target binding at selected 5-HT receptor subtypes

    where significant overlap in SAR with D3R has been observed. Several high affinity D3R antagonists

    including compounds 16 (Ki = 0.12 nM) and 32 (Ki = 0.35 nM)

    showed improved metabolic stability compared to the parent compound

    PG648 (6). Notably

    16 and the classic D3R antagonist SB277011A (2) were effective in reducing self-administration of heroin in wild-type but not D3R knockout mice.

    High Affinity Dopamine D3 Receptor (D3R)-Selective Antagonists Attenuate Heroin Self-Administration in Wild-Type but not D3R Knockout Mice.

    Barbara S. Slusher

    Rana Rais

    Jeffrey R. Deschamps

    Martin Moore

    Caitlin Burzynski

  • 2

    The dopamine D3 receptor (D3R) is a target of pharmacotherapeutic interest in a variety of neurological disorders including schizophrenia

    Parkinson's disease

    restless leg syndrome

    and drug addiction. A common molecular template used in the development of D3R-selective antagonists and partial agonists incorporates a butylamide linker between two pharmacophores

    a phenylpiperazine moiety and an extended aryl ring system. The series of compounds described herein incorporates a change to that chemical template

    replacing the amide functional group in the linker chain with a 1

    3-triazole group. Although the amide linker in the 4-phenylpiperazine class of D3R ligands has been previously deemed critical for high D3R affinity and selectivity

    the 1

    3-triazole moiety serves as a suitable bioisosteric replacement and maintains desired D3R-binding functionality of the compounds. Additionally

    using mouse liver microsomes to evaluate CYP450-mediated phase I metabolism

    we determined that novel 1

    3-triazole-containing compounds modestly improves metabolic stability compared to amide-containing analogues. The 1

    3-triazole moiety allows for the modular attachment of chemical subunit libraries using copper-catalyzed azide-alkyne cycloaddition click chemistry

    increasing the range of chemical entities that can be designed

    synthesized

    and developed toward D3R-selective therapeutic agents.

    Using click chemistry toward novel 1

    3-triazole-linked dopamine D3 receptor ligands

    Shaomeng Wang

    Beth Levant

    Cheng Jiang

    Jianyong Chen

    J Med Chem.

    J Med Chem. 2014. 57(11):4962-8\n\nWe report a class of potent and selective dopamine D3 receptor antagonists based upon tranylcypromine. Although tranylcypromine has a low affinity for the rat D3 receptor with low affinity (Ki = 12.8 µM)

    our efforts have yielded (1R

    2S)-11 (CJ-1882)

    which has Ki values of 2.7 nM and 2.8 nM at the rat and human dopamine D3 receptors

    respectively

    and displays selectivities of >10

    000-fold and 223-fold over the rat and human D2 receptors

    respectively. Evaluation in a β-arrestin functional assay showed that (1R

    2S)-11 is a potent and competitive antagonist at the human D3 receptor.

    Tranylcypromine Substituted cis-Hydroxycyclobutylnaphthamides as Potent and Selective Dopamine D3 Receptor Antagonists

    Jeffery R. Deschamps

    Jianjing Cao

    Erick G. Garcia

    ACS Med Chem Lett. 2014.5(6):647-51\n\nThe improved chiral synthesis of the selective dopamine D3 receptor (D3R) antagonist (R)-N-(4-(4-(2

    3-dichlorophenyl)piperazin-1-yl)-3-hydroxybutyl)1H-indole-2-carboxamide ((R)-PG648) is described. The same chiral secondary alcohol intermediate was used to prepare the enantiomers of a 3-F-benzofuranyl analogue

    BAK 2-66. The absolute configurations of the 3-F enantiomers were assigned from their X-ray crystal structures that confirmed retention of configuration during fluorination with N

    N-diethylaminosulfur trifluoride (DAST). (R)-BAK2-66 showed higher D3R affinity and selectivity than its (S)-enantiomer; however

    it had lower D3R affinity and enantioselectivity than (R)-PG648. Further

    importance of the 4-atom linker length between the aryl amide and 4-phenylpiperazine was demonstrated with the 4-fluorobutyl-product (8).

    Chiral Resolution and Serendipitous Fluorination Reaction for the Selective Dopamine D3 Receptor Antagonist BAK2-66

    Eliot L. Gardner

    Ratika Srivastava

    Hai-Ying Zhang

    Yong Huang

    Guo-Hua Bi

    Hong-Ju Yang

    Psychopharmacology (Berl). 2013. 229(2):253-65\n\nRationale The metabotropic glutamate receptor subtype 5 (mGluR5) has been reported to be critically involved in drug reward and addiction. Because the mGluR5 negative allosteric modulators (NAMs) MPEP and MTEP significantly inhibit addictive-like behaviors of cocaine and other drugs of abuse in experimental animals

    it has been suggested that mGluR5 NAMs may have translational potential for treatment of addiction in humans. However

    neither MPEP nor MTEP have been evaluated in humans due to their off-target actions and rapid metabolism.\nObjectives Herein

    we evaluate a potential candidate for translational addiction research: a new sulfate salt formulation of fenobam

    a selective mGluR5 NAM that has been investigated in humans.\nResults In rats

    fenobam sulfate had superior pharmacokinetics compared to the free base

    with improved Cmax (maximal plasma concentration) and longer half life. Oral (p.o.) administration of fenobam sulfate (30 or 60 mg/kg) inhibited intravenous cocaine self-administration

    cocaine-induced reinstatement of drug-seeking behavior and cocaine-associated contextual cue-induced cocaine-seeking behavior in rats. Fenobam sulfate also inhibited oral sucrose self-administration and sucrose-induced reinstatement of sucrose-seeking behavior

    but had no effect on locomotion.\nConclusions This study provides additional support for the role of mGluR5 signaling in cocaine addiction and suggests that fenobam sulfate may have translational potential in medication development for the treatment of cocaine addiction in humans.\n\nDOI: 10.1007/s00213-013-3106-9\nEpub: 2013 Apr 25

    Fenobam Sulfate Inhibits Cocaine-Taking and Cocaine-Seeking Behavior in Rats: Implications for Addiction Treatment in Humans

    Mu-Fa Zou

  • Drug Testing

    Animal Models

    Behavioral Neuroscience

    Medicinal Chemistry

    Cell Culture

    In Vivo

    In Vitro

    Immunohistochemistry

    Molecular Biology

    Pharmacology

    Immunofluorescence

    Neuroscience

    GPCRs

    Western Blotting

    PCR

    Drug Discovery

    Microarray Analysis

    Research

    Drug Design

    Cell

    Interferon regulatory factor 3 is necessary for induction of antiviral genes during human cytomegalovirus infection

    Jay A. Nelson

    Scott G. Hansen

    Victor R. DeFilippis

    J Virol.

    J Virol. 2006. 80(2):1032-7\n\nViral infection activates interferon regulatory factor 3 (IRF3)

    a cofactor for the induction of interferon-stimulated genes (ISGs). The role of IRF3 in the activation of ISGs by human cytomegalovirus (HCMV) is controversial despite the fact that HCMV has consistently been shown to induce ISGs during infection of fibroblasts. To address the function of IRF3 in HCMV-mediated ISG induction

    we monitored ISG expression and global gene expression in HCMV-infected cells in which IRF3 function had been depleted by small interfering RNA or blocked by dominant negative IRF3. A specific reduction of ISG induction was observed

    whereas other transcripts were unaffected. We therefore conclude that IRF3 specifically regulates ISG induction during the initial phase of HCMV infection.\n\nJ Virol. 2006 Jan;80(2):1032-7.\ndoi: 10.1128/​JVI.80.2.1032-1037.2006

    Interferon regulatory factor 3 is necessary for induction of antiviral genes during human cytomegalovirus infection