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Gheinani AH, Sack BS, Bigger-Allen A, Thaker H, Atta H, Lambrinos G, Costa K, Doyle C, Gharaee-Kermani M, Patalano S, Piper M, Cotellessa JF, Vitko D, Li H, Prabhakaran MK, Cristofaro V, Froehlich J, Lee RS, Yang W, Sullivan MP, Macoska JA, Adam RM. Integrated omics analysis unveils a DNA damage response to neurogenic injury. bioRxiv 2023:2023.12.10.571015. [PMID: 38106029 PMCID: PMC10723451 DOI: 10.1101/2023.12.10.571015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
Spinal cord injury (SCI) evokes profound bladder dysfunction. Current treatments are limited by a lack of molecular data to inform novel therapeutic avenues. Previously, we showed systemic inosine treatment improved bladder function following SCI in rats. Here, we applied multi-omics analysis to explore molecular alterations in the bladder and their sensitivity to inosine following SCI. Canonical pathways regulated by SCI included those associated with protein synthesis, neuroplasticity, wound healing, and neurotransmitter degradation. Upstream regulator analysis identified MYC as a key regulator, whereas causal network analysis predicted multiple regulators of DNA damage response signaling following injury, including PARP-1. Staining for both DNA damage (γH2AX) and PARP activity (poly-ADP-ribose) markers in the bladder was increased following SCI, and attenuated in inosine-treated tissues. Proteomics analysis suggested that SCI induced changes in protein synthesis-, neuroplasticity-, and oxidative stress-associated pathways, a subset of which were shown in transcriptomics data to be inosine-sensitive. These findings provide novel insights into the molecular landscape of the bladder following SCI, and highlight a potential role for PARP inhibition to treat neurogenic bladder dysfunction.
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Affiliation(s)
- Ali Hashemi Gheinani
- Urological Diseases Research Center, Boston Children's Hospital, Boston, MA, USA
- Functional Urology Research Group, Department for BioMedical Research DBMR, University of Bern, Switzerland
- Department of Urology, Inselspital University Hospital, 3010 Bern, Switzerland
- Department of Surgery, Harvard Medical School, Boston, MA, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Bryan S Sack
- Urological Diseases Research Center, Boston Children's Hospital, Boston, MA, USA
- Functional Urology Research Group, Department for BioMedical Research DBMR, University of Bern, Switzerland
| | - Alex Bigger-Allen
- Urological Diseases Research Center, Boston Children's Hospital, Boston, MA, USA
- Department of Surgery, Harvard Medical School, Boston, MA, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Biological & Biomedical Sciences Graduate Program, Division of Medical Sciences, Harvard Medical School, Boston, MA
| | - Hatim Thaker
- Urological Diseases Research Center, Boston Children's Hospital, Boston, MA, USA
- Department of Surgery, Harvard Medical School, Boston, MA, USA
| | - Hussein Atta
- Urological Diseases Research Center, Boston Children's Hospital, Boston, MA, USA
- Department of Surgery, Harvard Medical School, Boston, MA, USA
| | - George Lambrinos
- Urological Diseases Research Center, Boston Children's Hospital, Boston, MA, USA
- Department of Surgery, Harvard Medical School, Boston, MA, USA
| | - Kyle Costa
- Urological Diseases Research Center, Boston Children's Hospital, Boston, MA, USA
| | - Claire Doyle
- Urological Diseases Research Center, Boston Children's Hospital, Boston, MA, USA
- Department of Surgery, Harvard Medical School, Boston, MA, USA
| | | | | | - Mary Piper
- Harvard Chan Bioinformatics Core, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Justin F Cotellessa
- Departments of Surgery and Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA
| | - Dijana Vitko
- Urological Diseases Research Center, Boston Children's Hospital, Boston, MA, USA
- Department of Surgery, Harvard Medical School, Boston, MA, USA
| | - Haiying Li
- Urological Diseases Research Center, Boston Children's Hospital, Boston, MA, USA
- Department of Surgery, Harvard Medical School, Boston, MA, USA
| | - Manubhai Kadayil Prabhakaran
- Urological Diseases Research Center, Boston Children's Hospital, Boston, MA, USA
- Department of Surgery, Harvard Medical School, Boston, MA, USA
| | - Vivian Cristofaro
- Division of Urology, VA Boston Healthcare System, Boston, MA, USA
- University of Massachusetts, Boston, MA, USA
| | - John Froehlich
- Urological Diseases Research Center, Boston Children's Hospital, Boston, MA, USA
- Department of Surgery, Harvard Medical School, Boston, MA, USA
| | - Richard S Lee
- Urological Diseases Research Center, Boston Children's Hospital, Boston, MA, USA
- Department of Surgery, Harvard Medical School, Boston, MA, USA
| | - Wei Yang
- Departments of Surgery and Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA
| | - Maryrose P Sullivan
- Division of Urology, VA Boston Healthcare System, Boston, MA, USA
- University of Massachusetts, Boston, MA, USA
| | | | - Rosalyn M Adam
- Urological Diseases Research Center, Boston Children's Hospital, Boston, MA, USA
- Department of Urology, Inselspital University Hospital, 3010 Bern, Switzerland
- Department of Surgery, Harvard Medical School, Boston, MA, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
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