Abstract

Changes in cyclic 3':5' nucleotide (cNMP) metabolism occur in sympathetic dysfunction. Differentiation of PC12 cells into a sympathetic neuronal phenotype is accompanied by changes distinct cNMP phosphodiesterases (PDEs). Nerve growth factor (NGF) or vanadate reduce cGMP- stimulated PDE (the PDE 2 gene product) in PC12 cells by 50 % after 24 hours. NGF does not decrease PDE 2 mRNA, but increase calmodulin- stimulated PDE (the PDE 1 gene) mRNA. Sympathetic differentiation may shift cNMP metabolism from a cGMP- regulated to a calcium-regulated state. To study this 1), PDE cDNAs from PC12 cells and sympathetic ganglia will be characterized by molecular cloning and expression. 2) NGF effects on PDE mRNA and protein expression will be assessed. 3) The role of phosphorylation in the regulation of PDE activity will be determined by phosphopeptide mapping and site directed mutagenesis and expression studies.

  Funding Agency

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
General Clinical Research Centers Program (M01)
Project #
3M01RR000042-39S1
Application #
6113456
Study Section
Project Start
Project End
Budget Start
1998-10-01
Budget End
1999-09-30
Support Year
39
Fiscal Year
1999
Total Cost
Indirect Cost

  Institution

Name
University of Michigan Ann Arbor
Department
Type
DUNS #
791277940
City
Ann Arbor
State
MI
Country
United States
Zip Code
48109

  Publications

Robarge, Jason D; Desta, Zereunesay; Nguyen, Anne T et al. (2017) Effects of exemestane and letrozole therapy on plasma concentrations of estrogens in a randomized trial of postmenopausal women with breast cancer. Breast Cancer Res Treat 161:453-461
Crane, Natania A; Jenkins, Lisanne M; Bhaumik, Runa et al. (2017) Multidimensional prediction of treatment response to antidepressants with cognitive control and functional MRI. Brain 140:472-486
Hertz, Daniel L; Speth, Kelly A; Kidwell, Kelley M et al. (2017) Variable aromatase inhibitor plasma concentrations do not correlate with circulating estrogen concentrations in post-menopausal breast cancer patients. Breast Cancer Res Treat 165:659-668
Hertz, D L; Kidwell, K M; Seewald, N J et al. (2017) Polymorphisms in drug-metabolizing enzymes and steady-state exemestane concentration in postmenopausal patients with breast cancer. Pharmacogenomics J 17:521-527
Kadakia, Kunal C; Kidwell, Kelley M; Seewald, Nicholas J et al. (2017) Prospective assessment of patient-reported outcomes and estradiol and drug concentrations in patients experiencing toxicity from adjuvant aromatase inhibitors. Breast Cancer Res Treat 164:411-419
Spengler, Erin K; Kleiner, David E; Fontana, Robert J (2017) Vemurafenib-induced granulomatous hepatitis. Hepatology 65:745-748
Heidemann, Lauren; Law, James; Fontana, Robert J (2017) A Text Searching Tool to Identify Patients with Idiosyncratic Drug-Induced Liver Injury. Dig Dis Sci 62:615-625
Mehta, Rupal; Cai, Xuan; Lee, Jungwha et al. (2016) Association of Fibroblast Growth Factor 23 With Atrial Fibrillation in Chronic Kidney Disease, From the Chronic Renal Insufficiency Cohort Study. JAMA Cardiol 1:548-56
Heidemann, Lauren A; Navarro, Victor J; Ahmad, Jawad et al. (2016) Severe Acute Hepatocellular Injury Attributed to OxyELITE Pro: A Case Series. Dig Dis Sci 61:2741-8
Kadakia, Kunal C; Snyder, Claire F; Kidwell, Kelley M et al. (2016) Patient-Reported Outcomes and Early Discontinuation in Aromatase Inhibitor-Treated Postmenopausal Women With Early Stage Breast Cancer. Oncologist 21:539-46

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