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Gabanic A, Smith S. Pulmonary Hypertension Resolves Post Transplantation in Patients Treated with Milrinone or Dobutamine. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Kraynik SM, Gabanic A, Anthony SR, Kelley M, Paulding WR, Roessler A, McGuinness M, Tranter M. The stress-induced heat shock protein 70.3 expression is regulated by a dual-component mechanism involving alternative polyadenylation and HuR. Biochim Biophys Acta 2015; 1849:688-96. [PMID: 25727182 DOI: 10.1016/j.bbagrm.2015.02.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Revised: 01/31/2015] [Accepted: 02/21/2015] [Indexed: 10/23/2022]
Abstract
Heat shock protein 70.3 (Hsp70.3) expression increases in response to cellular stress and plays a cytoprotective role. We have previously shown that Hsp70.3 expression is controlled through coordinated post-transcriptional regulation by miRNAs and alternative polyadenylation (APA), and APA-mediated shortening of the Hsp70.3 3'-UTR facilitates increased protein expression. A stress-induced increase in Hsp70.3 mRNA and protein expression is accompanied by alternative polyadenylation (APA)-mediated truncation of the 3'UTR of the Hsp70.3 mRNA transcript. However, the role that APA plays in stress-induced expression of Hsp70.3 remains unclear. Our results show that APA-mediated truncation of the Hsp70.3 3'UTR increases protein expression through enhanced polyribosome loading. Additionally, we demonstrate that the RNA binding protein HuR, which has been previously shown to play a role in mediating APA, is necessary for heat shock mediated increase in Hsp70.3 mRNA and protein. However, it is somewhat surprising to note that HuR does not play a role in APA of the Hsp70.3 mRNA, and these two regulatory events appear to be mutually exclusive regulators of Hsp70.3 expression. These results not only provide important insight to the regulation of stress response genes following heat shock, but also contribute an enhanced understanding of how alternative polyadenylation contributes to gene regulation.
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Affiliation(s)
- Stephen M Kraynik
- Dept. of Internal Medicine, Division of Cardiovascular Health and Disease, University of Cincinnati, College of Medicine, Cincinnati, OH, United States
| | - Andrew Gabanic
- Dept. of Internal Medicine, Division of Cardiovascular Health and Disease, University of Cincinnati, College of Medicine, Cincinnati, OH, United States
| | - Sarah R Anthony
- Dept. of Internal Medicine, Division of Cardiovascular Health and Disease, University of Cincinnati, College of Medicine, Cincinnati, OH, United States
| | - Melissa Kelley
- Dept. of Internal Medicine, Division of Cardiovascular Health and Disease, University of Cincinnati, College of Medicine, Cincinnati, OH, United States
| | | | - Anne Roessler
- Dept. of Internal Medicine, Division of Cardiovascular Health and Disease, University of Cincinnati, College of Medicine, Cincinnati, OH, United States
| | - Michael McGuinness
- Dept. of Internal Medicine, Division of Cardiovascular Health and Disease, University of Cincinnati, College of Medicine, Cincinnati, OH, United States
| | - Michael Tranter
- Dept. of Internal Medicine, Division of Cardiovascular Health and Disease, University of Cincinnati, College of Medicine, Cincinnati, OH, United States.
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Gabanic A, Paulding W, Roessler A, Luther K, Smith L, McGuinness M, Tranter M. Alternative polyadenylation mediated shortening of the Hsp70.3 3′UTR increases polyribosome loading of the mRNA transcript. FASEB J 2013. [DOI: 10.1096/fasebj.27.1_supplement.1180.10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Andrew Gabanic
- Department of Internal MedicineDivision of Cardiovasular DiseasesUniveristy of CincinnatiCincinnatiOH
| | | | - Anne Roessler
- Department of Internal MedicineDivision of Cardiovasular DiseasesUniveristy of CincinnatiCincinnatiOH
| | - Kristin Luther
- Department of PharmacologyUniveristy of CincinnatiCincinnatiOH
| | - Leah Smith
- Department of Internal MedicineDivision of Cardiovasular DiseasesUniveristy of CincinnatiCincinnatiOH
| | | | - Michael Tranter
- Department of Internal MedicineDivision of Cardiovasular DiseasesUniveristy of CincinnatiCincinnatiOH
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Smith L, McGuinness M, Paulding W, Roessler A, Gabanic A, Kelley M, Haar L, Tranter M. Identification of regulatory RNA binding proteins that mediate alternative polyadenylation in cardiac myocytes. FASEB J 2013. [DOI: 10.1096/fasebj.27.1_supplement.1180.5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Leah Smith
- Department of Internal MedicineDivision of Cardiovascular DiseasesUniversity of CincinnatiCincinnatiOH
| | | | | | - Anne Roessler
- Department of Internal MedicineDivision of Cardiovascular DiseasesUniversity of CincinnatiCincinnatiOH
| | - Andrew Gabanic
- Department of Internal MedicineDivision of Cardiovascular DiseasesUniversity of CincinnatiCincinnatiOH
| | - Melissa Kelley
- Department of Internal MedicineDivision of Cardiovascular DiseasesUniversity of CincinnatiCincinnatiOH
| | - Lauren Haar
- Department of PharmacologyUniversity of CincinnatiCincinnatiOH
| | - Michael Tranter
- Department of Internal MedicineDivision of Cardiovascular DiseasesUniversity of CincinnatiCincinnatiOH
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