Research Topics
Genomes and GenesSpecies | HILDEGARD SCHULLERSummaryAffiliation: University of Tennessee Country: USA Publications
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Publications
Regulatory Role of the ?7nAChR in CancerHildegard M Schuller
Experimental Oncology Laboratory, Department of Pathobiology, College of Veterinary Medicine, University of Tennessee, 2407 River Drive, Knoxville, TN 37996, USA
Curr Drug Targets 13:680-7. 2012....
Gamma-amino butyric acid inhibits the nicotine-imposed stimulatory challenge in xenograft models of non-small cell lung carcinomaH A N Al-Wadei
Experimental Oncology Laboratory, Department of Biomedical and Diagnostic Sciences, College of Veterinary Medicine, University of Tennessee, Knoxville, TN 37996, USA
Curr Cancer Drug Targets 12:97-106. 2012..GABA has potential to lower the risk of NSCLC among smokers and could be used to enhance the clinical outcome of standard cancer intervention strategies...
Pancreatic cancer cells and normal pancreatic duct epithelial cells express an autocrine catecholamine loop that is activated by nicotinic acetylcholine receptors ?3, ?5, and ?7Mohammed H Al-Wadei
Experimental Oncology Laboratory, Department of Biomedical and Diagnostic Sciences, College of Veterinary Medicine, University of Tennessee, Knoxville, TN 37996, USA
Mol Cancer Res 10:239-49. 2012..Our findings identify this hitherto unknown autocrine catecholamine loop as an important regulatory cascade in pancreatic cancer that may prove a promising new target for cancer intervention...
Social stress promotes and ?-aminobutyric acid inhibits tumor growth in mouse models of non-small cell lung cancerHussein A N Al-Wadei
Experimental Oncology Laboratory, Department of Pathobiology, College of Veterinary Medicine, University of Tennessee, 2407 River Drive, Knoxville, TN 37996, USA
Cancer Prev Res (Phila) 5:189-96. 2012..Treatment with GABA reversed the effects of stress. Our findings suggest that social stress stimulates NSCLC by increasing nAChR-mediated stress neurotransmitter signaling and that GABA is a promising novel agent for NSCLC intervention...
Regulation of pancreatic cancer by neuropsychological stress responses: a novel target for interventionHildegard M Schuller
Experimental Oncology Laboratory, Department of Biomedical and Diagnostic Sciences, College of Veterinary Medicine, University of Tennessee, Knoxville, TN 37996, USA
Carcinogenesis 33:191-6. 2012....
Expression of the alpha7 nicotinic acetylcholine receptor in human lung cellsHoward K Plummer
Molecular Cancer Analysis Laboratory, Department of Pathobiology, College of Veterinary Medicine, University of Tennessee, Knoxville, TN 37996 4542, USA
Respir Res 6:29. 2005..In the present study, our goal was to determine the extent of alpha7 mRNA and protein expression in the human lung...
Expression of inwardly rectifying potassium channels (GIRKs) and beta-adrenergic regulation of breast cancer cell linesHoward K Plummer
Molecular Cancer Analysis Laboratory, Department of Pathobiology, College of Veterinary Medicine, University of Tennessee, Knoxville, TN 37996 4542, USA
BMC Cancer 4:93. 2004..Previously, GIRK channels have been associated with beta-adrenergic signaling...
Expression of G-protein inwardly rectifying potassium channels (GIRKs) in lung cancer cell linesHoward K Plummer
Department of Pathobiology, College of Veterinary Medicine, University of Tennessee, Knoxville, TN 37996 4542, USA
BMC Cancer 5:104. 2005..We wanted to determine if GIRK channels were expressed in lung cancers and if a similar link exists in lung cancer...
Neuroendocrine lung carcinogenesis in hamsters is inhibited by green tea or theophylline while the development of adenocarcinomas is promoted: implications for chemoprevention in smokersHildegard M Schuller
Department of Pathobiology, College of Veterinary Medicine, University of Tennessee, 2407 River Drive, Knoxville, TN 37996, USA
Lung Cancer 45:11-8. 2004..At the current state of knowledge such chemopreventive treatments should only be used as adjuvant to cancer therapy of cancers that have been fully characterized at the pathology and molecular level...
GABA B receptor is a novel drug target for pancreatic cancerHildegard M Schuller
Experimental Oncology Laboratory, Department of Pathobiology, College of Veterinary Medicine, University of Tennessee, Knoxville, Tennessee 37996, USA
Cancer 112:767-78. 2008..The aim of the study was to investigate if GABA B R inhibits beta-AR signaling in PDAC and pancreatic duct epithelial cells, thus blocking driving forces of cancer progression, such as cell proliferation and cell migration...
Detection of overexpressed COX-2 in precancerous lesions of hamster pancreas and lungs by molecular imaging: implications for early diagnosis and preventionHildegard M Schuller
Department of Pathobiology, College of Veterinary Medicine, University of Tennessee, 2407 River Drive, Knoxville, TN 37996, USA
ChemMedChem 1:603-10. 2006..Our data provide proof of principle for the hypothesis that molecular imaging with radiolabeled COX-2 inhibitors can be used for the noninvasive monitoring of overexpressed COX-2 levels...
NNK-induced hamster lung adenocarcinomas over-express beta2-adrenergic and EGFR signaling pathwaysHildegard M Schuller
Experimental Oncology Laboratory, Department of Pathobiology, College of Veterinary Medicine, University of Tennessee, 2407 River Drive, Knoxville, TN 37996, USA
Lung Cancer 49:35-45. 2005..Taken together, these data point to PKA/CREB as novel targets for the development of cancer therapeutics for PAC patients non-responsive to EGFR-specific tyrosine kinase inhibitors...
Nitrosamines as nicotinic receptor ligandsHildegard M Schuller
Experimental Oncology Laboratory, Department of Pathobiology, College of Veterinary Medicine, University of Tennessee, 2407 River Drive, Knoxville, TN 37996, USA
Life Sci 80:2274-80. 2007..NNK and nicotine-induced hyperactivity of the alpha7nAChR/RAF/ERK1/2 pathway thus appears to play a crucial role in the development of SCLC in smokers and could be targeted for cancer prevention...
Neurotransmitter receptor-mediated signaling pathways as modulators of carcinogenesisHildegard M Schuller
Experimental Oncology Laboratory, Department of Pathobiology, College of Veterinary Medicine, University of Tennessee, 2407 River Drive, Knoxville, TN 37996, USA
Prog Exp Tumor Res 39:45-63. 2007..Collectively, neurotransmitter receptors of the nicotinic and Beta-adrenergic families appear to regulate cellular functions essential for the development and survival of the most common human cancers...
Gamma-aminobutyric acid, a potential tumor suppressor for small airway-derived lung adenocarcinomaHildegard M Schuller
Experimental Oncology Laboratory, Department of Pathobiology, College of Veterinary Medicine, University of Tennessee, 2407 River Drive, Knoxville, TN 37996, USA
Carcinogenesis 29:1979-85. 2008..Our findings suggest that marker-guided treatment with GABA or a GABA(B)R agonist of individuals with downregulated pulmonary GABA may provide a novel targeted approach for the prevention of PAC in smokers...
Neurotransmission and cancer: implications for prevention and therapyHildegard M Schuller
Experimental Oncology Laboratory, Department of Pathobiology, College of Veterinary Medicine, University of Tennessee, 2407 River Drive, Knoxville, TN 37996, USA
Anticancer Drugs 19:655-71. 2008..Marker-guided restoration of the physiological balance in stimulatory and inhibitory neurotransmission represents a promising and hitherto neglected strategy for the prevention and therapy of neurotransmitter-responsive cancers...
Receptor-mediated effects of nicotine and its nitrosated derivative NNK on pulmonary neuroendocrine cellsHildegard M Schuller
Department of Pathology, College of Veterinary Medicine, University of Tennessee, Knoxville, Tennessee 37996, USA
Anat Rec A Discov Mol Cell Evol Biol 270:51-8. 2003....
Neurotransmitter receptors as central regulators of pancreatic cancerHildegard M Schuller
Experimental Oncology Laboratory, College of Veterinary Medicine, University of Tennessee, Knoxville, TN 37996, USA
Future Oncol 6:221-8. 2010..Accordingly, PDAC intervention strategies should include the diagnosis of unphysiological neurotransmitter levels and aim to restore any imbalance in stimulatory and inhibitory neurotransmitters...
Co-expression of beta-adrenergic receptors and cyclooxygenase-2 in pulmonary adenocarcinomaH M Schuller
Department of Pathology, College of Veterinary Medicine, University of Tennessee, 2407 River Drive, Knoxville, TN 37996, USA
Int J Oncol 19:445-9. 2001....
Is cancer triggered by altered signalling of nicotinic acetylcholine receptors?Hildegard M Schuller
Experimental Oncology Laboratory, Department of Pathobiology, College of Veterinary Medicine, University of Tennessee, Knoxville, Tennessee 37996, USA
Nat Rev Cancer 9:195-205. 2009..This novel paradigm necessitates the development of marker-guided cancer intervention strategies that aim to restore the balance between nAChR-mediated stimulatory and inhibitory neurotransmitters and their downstream effectors...
Mechanisms of smoking-related lung and pancreatic adenocarcinoma developmentHildegard M Schuller
Department of Pathology, College of Veterinary Medicine, University of Tennessee, 2407 River Drive, Knoxville, Tennessee 37996, USA
Nat Rev Cancer 2:455-63. 2002
The cyclooxygenase inhibitor ibuprofen and the FLAP inhibitor MK886 inhibit pancreatic carcinogenesis induced in hamsters by transplacental exposure to ethanol and the tobacco carcinogen NNKH M Schuller
Experimental Oncology Laboratory, College of Veterinary Medicine, University of Tennessee, 2407 River Drive, Knoxville, TN 37996, USA
J Cancer Res Clin Oncol 128:525-32. 2002....
Beta-adrenergic and arachidonic acid-mediated growth regulation of human breast cancer cell linesY Cakir
Experimental Oncology Laboratory, Carcinogenesis and Developmental Therapeutics Program, College of Veterinary Medicine, University of Tennessee, Knoxville, TN 37996, USA
Int J Oncol 21:153-7. 2002..Moreover, our findings suggest that cardiovascular disease and adenocarcinomas in a variety of organ systems, including the breast may share common risk factors and benefit from similar preventive and treatment strategies...
Nicotinic receptor-mediated activation by the tobacco-specific nitrosamine NNK of a Raf-1/MAP kinase pathway, resulting in phosphorylation of c-myc in human small cell lung carcinoma cells and pulmonary neuroendocrine cellsB A Jull
Experimental Oncology Laboratory, College of Veterinary Medicine, University of Tennessee, Knoxville 37901-1071, USA
J Cancer Res Clin Oncol 127:707-17. 2001..Furthermore, our data suggest that serotonin uptake inhibitors may protect against the development or be useful in the clinical management of SCLC...
Beta-adrenergic growth regulation of human cancer cell lines derived from pancreatic ductal carcinomasD L Weddle
Carcinogenesis and Developmental Therapeutics Program, College of Veterinary Medicine, University of Tennessee, 2407 River Drive, Knoxville, TN 37996, USA
Carcinogenesis 22:473-9. 2001....
Interaction of tobacco-specific toxicants with the neuronal alpha(7) nicotinic acetylcholine receptor and its associated mitogenic signal transduction pathway: potential role in lung carcinogenesis and pediatric lung disordersH M Schuller
Carcinogenesis and Developmental Therapeutics Program, College of Veterinary Medicine, University of Tennessee, Knoxville 37909 1071, USA
Eur J Pharmacol 393:265-77. 2000..Similarly, up-regulation of one or several components of this nicotinic receptor pathway in smokers may be an important factor for the development of small cell lung carcinoma...
Cell type specific, receptor-mediated modulation of growth kinetics in human lung cancer cell lines by nicotine and tobacco-related nitrosaminesH M Schuller
Department of Pathobiology, College of Veterinary Medicine, University of Tennessee, Knoxville 37901 1071
Biochem Pharmacol 38:3439-42. 1989..This effect was not changed by pre-exposure to cholinergic antagonists. The data suggest a selective uptake of nicotine and the two nitrosamines via nicotinic cholinergic receptors in pulmonary neuroendocrine cells...
Regulation of cell proliferation by beta-adrenergic receptors in a human lung adenocarcinoma cell lineH M Schuller
Department of Pathobiology, College of Veterinary Medicine, University of Tennessee, Knoxville 37901 1071
Carcinogenesis 10:1753-5. 1989..These findings suggest an important role of beta-adrenergic receptors in the regulation of cell proliferation in lung tumors comprised of this cell type...
Beta-adrenergic mitogenic signal transduction in peripheral lung adenocarcinoma: implications for individuals with preexisting chronic lung diseaseP G Park
Carcinogenesis and Developmental Therapeutics Program, College of Veterinary Medicine, University of Tennessee, Knoxville 37909, USA
Cancer Res 55:3504-8. 1995....
Interaction of tobacco-specific toxicants with nicotinic cholinergic regulation of fetal pulmonary neuroendocrine cells: implications for pediatric lung diseaseH K Plummer
Experimental Oncology Laboratory, College of Veterinary Medicine, University of Tennessee, Knoxville 37996, USA
Exp Lung Res 26:121-35. 2000....
4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone, a nicotine derivative, induces apoptosis of endothelial cellsP K Tithof
Department of Comparative Medicine, University of Tennessee College of Veterinary Medicine, Knoxville, Tennessee 37996 4500, USA
Am J Physiol Heart Circ Physiol 281:H1946-54. 2001..These data suggest that NNK causes EC apoptosis by a mechanism that involves beta1- and beta2-adrenergic receptor-mediated release of AA...
Beta-adrenergic modulation of NNK-induced lung carcinogenesis in hamstersH M Schuller
Experimental Oncology Laboratory, College of Veterinary Medicine, University of Tennessee, Knoxville 37906, USA
J Cancer Res Clin Oncol 126:624-30. 2000..We have recently shown that the growth of cell lines derived from human PACs is controlled by beta-adrenergic receptors, and that NNK is a high affinity agonist for this receptor family...
PKA-dependent growth stimulation of cells derived from human pulmonary adenocarcinoma and small airway epithelium by dexamethasoneH A N Al-Wadei
Experimental Oncology Laboratory, College of Veterinary Medicine, University of Tennessee, Knoxville, TN 37996, USA
Eur J Cancer 41:2745-53. 2005..Immunoblot analysis revealed increased phosphorylation of ERK1/2 and of the transcription factor CREB in response to dexamethasone. These data suggest that glucocorticoids could have tumour promoting activity on a sub-set of human PAC...
Chemoprevention of lung cancer by non-steroidal anti-inflammatory drugs among cigarette smokersRandall E Harris
The Ohio State University College of Medicine and Public Health, Columbus, OH 43210 1240, USA
Oncol Rep 9:693-5. 2002..22), and for the individual compounds, aspirin (RR, 0.25) and ibuprofen (RR, 0.39). These results combined with the current molecular evidence suggest that regular NSAID intake may prevent tobacco carcinogenesis through COX-2 blockade...
The tobacco-specific carcinogen, 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone stimulates proliferation of immortalized human pancreatic duct epithelia through beta-adrenergic transactivation of EGF receptorsMinoo D F Askari
Experimental Oncology Laboratory, Department of Pathobiology, College of Veterinary Medicine, University of Tennessee, Knoxville, 37996, USA
J Cancer Res Clin Oncol 131:639-48. 2005....
Caffeine stimulates the proliferation of human lung adenocarcinoma cells and small airway epithelial cells via activation of PKA, CREB and ERK1/2Hussein A N Al-Wadei
Experimental Oncology Laboratory, Department of Pathobiology, College of Veterinary Medicine, University of Tennessee, Knoxville, TN 37996, USA
Oncol Rep 15:431-5. 2006..These findings suggest that exposure to caffeine may contribute to the prevalence of PAC observed today...
Antagonistic growth regulation of cell lines derived from human lung adenocarcinomas of Clara cell and aveolar type II cell lineage: Implications for chemopreventionHibret A Adissu
Experimental Oncology Laboratory, Department of Pathobiology, College of Veterinary Medicine, University of Tennessee, Knoxville, TN 37996, USA
Int J Oncol 24:1467-72. 2004....
Theophylline stimulates cAMP-mediated signaling associated with growth regulation in human cells from pulmonary adenocarcinoma and small airway epitheliaA Hussein
Experimental Oncology Laboratory, Department of Pathobiology, College of Veterinary Medicine, University of Tennessee, Knoxville, 37996, USA
Int J Oncol 27:155-60. 2005....
Nitrosamine 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone-induced pulmonary adenocarcinomas in Syrian golden hamsters contain beta 2-adrenergic receptor single-nucleotide polymorphismsThomas Masi
Experimental Oncology Laboratory, Department of Pathobiology, College of Veterinary Medicine, University of Tennessee, Knoxville, Tennessee 37996, USA
Genes Chromosomes Cancer 44:212-7. 2005....
Nongenomic beta estrogen receptors enhance beta1 adrenergic signaling induced by the nicotine-derived carcinogen 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone in human small airway epithelial cellsMourad Majidi
Experimental Oncology Laboratory, Department of Pathobiology, College of Veterinary Medicine, University of Tennessee, 2407 River Drive, Knoxville, TN 37996, USA
Cancer Res 67:6863-71. 2007..This novel cooperation between beta1AR and ERbeta signaling may contribute to the prominence of lung adenocarcinoma in women...
Overexpressed Raf-1 and phosphorylated cyclic adenosine 3'-5'-monophosphatate response element-binding protein are early markers for lung adenocarcinomaMaria Cekanova
Experimental Oncology Laboratory, Department of Pathobiology, College of Veterinary Medicine, University of Tennessee, Knoxville, Tennessee 37996, USA
Cancer 109:1164-73. 2007....
Growth stimulation of human pulmonary adenocarcinoma cells and small airway epithelial cells by beta-carotene via activation of cAMP, PKA, CREB and ERK1/2Hussein A N Al-Wadei
Experimental Oncology Laboratory, Department of Pathobiology, College of Veterinary Medicine, University of Tennessee, Knoxville, TN 37996, USA
Int J Cancer 118:1370-80. 2006..Our data challenge the widely accepted view that beta-carotene may be useful as a cancer preventive agent...
Cyclic adenosine monophosphate-dependent cell type-specific modulation of mitogenic signaling by retinoids in normal and neoplastic lung cellsHussein A N Al-Wadei
Experimental Oncology Laboratory, Department of Pathobiology, College of Veterinary Medicine, University of Tennessee, Knoxville, TN 37996, USA
Cancer Detect Prev 30:403-11. 2006....
Pulmonary fibroblasts stimulate the proliferation of cell lines from human lung adenocarcinomasMaria Cekanova
Experimental Oncology Laboratory, Department of Pathobiology, College of Veterinary Medicine, University of Tennessee, Knoxville, Tennessee 37996, USA
Anticancer Drugs 17:771-81. 2006..This may contribute to the disappointing clinical responses to anticancer drugs, which have shown promise in tests with lung cancer cell lines...
Ethanol and the tobacco-specific carcinogen, NNK, contribute to signaling in immortalized human pancreatic duct epithelial cellsMinoo D F Askari
Experimental Oncology Laboratory, Department of Pathobiology, College of Veterinary Medicine, University of Tennessee, Knoxville, TN 37996, USA
Pancreas 33:53-62. 2006..CONCLUSIONS: These findings suggest a potential role for these pathways contributing to the development of smoking- and alcohol-related pancreatic carcinogenesis...
Low concentrations of beta-carotene stimulate the proliferation of human pancreatic duct epithelial cells in a PKA-dependent mannerHussein A N Al Wadei
Experimental Oncology Laboratory, Department of Pathobiology, College of Veterinary Medicine, University of Tennessee, Knoxville, TN 37996, USA
Cancer Genomics Proteomics 4:35-42. 2007..While some of the preclinical data suggested cancer preventive effects of these agents, they have disappointed in clinical investigations...
Classification of proliferative pulmonary lesions of the mouse: recommendations of the mouse models of human cancers consortiumAlexander Yu Nikitin
Department of Biomedical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, New York 14853 6401, USA
Cancer Res 64:2307-16. 2004....
Research Grants
- GABA-B-R-mediated prevention of pancreatic cancerHildegard M Schuller; Fiscal Year: 2010..In vitro and in vivo studies proposed under this project will provide a preclinical basis for the use of GABA-ergic agents for the marker-guided prevention of pancreatic cancer in individuals with pancreatic GABA deficiency. ..
- NNK, Beta-Adrenergic AA Release and Lung CancerHILDEGARD SCHULLER; Fiscal Year: 2005..2. To determine which products of the AA cascade are formed in untreated cells and in response to NNK, which of these products stimulate DNA synthesis, and what downstream effectors are activated by these products. ..
- Transplancental Pancreatic Carcinogenesis by NNKHILDEGARD SCHULLER; Fiscal Year: 2006..Data generated by these studies will help identify early markers of pancreatic cancer development that provide a basis for the early detection of this deadly malignancy. ..
- Preclin. model for prevention of NSCLC in former smokersHILDEGARD SCHULLER; Fiscal Year: 2006....
- The GABA-B receptor is a novel drug target for pancreatic cancerHildegard M Schuller; Fiscal Year: 2010..In vitro and in vivo studies proposed under this project will provide a preclinical basis for the use of GABA-ergic agents for the effective therapy and prevention of pancreatic cancer. ..
- TRANSPLACENTAL CARCINOGENICITY OF NNKHILDEGARD SCHULLER; Fiscal Year: 1992..Results from these studies could provide important experimental bases for epidemiological surveys of cancer risks associated with in utero exposure to tobacco smoke...
- TRANSPLACENTAL PANCREATIC CARCINOGENESIS BY NNKHILDEGARD SCHULLER; Fiscal Year: 2000..It is proposed that these studies will serve as the basis for developing effective strategies for prevention of cancer in the children of smokers. ..
