1
|
Iacono D, Hatch K, Murphy EK, Post J, Cole RN, Perl DP, Day RM. Proteomic changes in the hippocampus of large mammals after total-body low dose radiation. PLoS One 2024; 19:e0296903. [PMID: 38427613 PMCID: PMC10906861 DOI: 10.1371/journal.pone.0296903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 12/19/2023] [Indexed: 03/03/2024] Open
Abstract
There is a growing interest in low dose radiation (LDR) to counteract neurodegeneration. However, LDR effects on normal brain have not been completely explored yet. Recent analyses showed that LDR exposure to normal brain tissue causes expression level changes of different proteins including neurodegeneration-associated proteins. We assessed the proteomic changes occurring in radiated vs. sham normal swine brains. Due to its involvement in various neurodegenerative processes, including those associated with cognitive changes after high dose radiation exposure, we focused on the hippocampus first. We observed significant proteomic changes in the hippocampus of radiated vs. sham swine after LDR (1.79Gy). Mass spectrometry results showed 190 up-regulated and 120 down-regulated proteins after LDR. Western blotting analyses confirmed increased levels of TPM1, TPM4, PCP4 and NPY (all proteins decreased in various neurodegenerative processes, with NPY and PCP4 known to be neuroprotective) in radiated vs. sham swine. These data support the use of LDR as a potential beneficial tool to interfere with neurodegenerative processes and perhaps other brain-related disorders, including behavioral disorders.
Collapse
Affiliation(s)
- Diego Iacono
- DoD/USU Brain Tissue Repository & Neuropathology Program, Uniformed Services University (USU), Bethesda, Maryland, United States of America
- Department of Neurology, F. Edward Hébert School of Medicine, Uniformed Services University (USU), Bethesda, Maryland, United States of America
- Department of Pathology, F. Edward Hébert School of Medicine, Uniformed Services University (USU), Bethesda, Maryland, United States of America
- Neuroscience Program, Department of Anatomy, Physiology and Genetics (APG), F. Edward Hébert School of Medicine, Uniformed Services University (USU), Bethesda, Maryland, United States of America
- The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc. (HJF), Bethesda, Maryland, United States of America
- Neurodegeneration Disorders Clinic, National Institute of Neurological Disorders and Stroke, NINDS, NIH, Bethesda, Maryland, United States of America
| | - Kathleen Hatch
- DoD/USU Brain Tissue Repository & Neuropathology Program, Uniformed Services University (USU), Bethesda, Maryland, United States of America
- Department of Pathology, F. Edward Hébert School of Medicine, Uniformed Services University (USU), Bethesda, Maryland, United States of America
- The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc. (HJF), Bethesda, Maryland, United States of America
| | - Erin K. Murphy
- DoD/USU Brain Tissue Repository & Neuropathology Program, Uniformed Services University (USU), Bethesda, Maryland, United States of America
- Department of Pathology, F. Edward Hébert School of Medicine, Uniformed Services University (USU), Bethesda, Maryland, United States of America
- The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc. (HJF), Bethesda, Maryland, United States of America
| | - Jeremy Post
- Mass Spectrometry and Proteomics, Department of Biological Chemistry, Johns Hopkins University, School of Medicine, Baltimore, Maryland, United States of America
| | - Robert N. Cole
- Mass Spectrometry and Proteomics, Department of Biological Chemistry, Johns Hopkins University, School of Medicine, Baltimore, Maryland, United States of America
| | - Daniel P. Perl
- DoD/USU Brain Tissue Repository & Neuropathology Program, Uniformed Services University (USU), Bethesda, Maryland, United States of America
- Department of Pathology, F. Edward Hébert School of Medicine, Uniformed Services University (USU), Bethesda, Maryland, United States of America
| | - Regina M. Day
- Department of Pharmacology and Molecular Therapeutics, Uniformed Services University (USU), Bethesda, Maryland, United States of America
| |
Collapse
|
2
|
Hung RJ, Khodayari Moez E, Kim SJ, Budhathoki S, Brooks JD. Considerations of biomarker application for cancer continuum in the era of precision medicine. CURR EPIDEMIOL REP 2022; 9:200-211. [PMID: 36090700 PMCID: PMC9454320 DOI: 10.1007/s40471-022-00295-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/09/2022] [Indexed: 11/25/2022]
Abstract
Purpose of the review The goal of this review is to highlight emerging biomarker research by the key phases of the cancer continuum and outline the methodological considerations for biomarker application. Recent findings While biomarkers have an established role in targeted therapy and to some extent, disease monitoring, their role in early detection and survivorship remains to be elucidated. With the advent of omics technology, the discovery of biomarkers has been accelerated exponentially, therefore careful consideration to ensure an unbiased study design and robust validity is crucial. Summary The rigor of biomarker research holds the key to the success of precision health care. The potential clinical utility and the feasibility of implementation should be central to future biomarker research study design.
Collapse
Affiliation(s)
- Rayjean J Hung
- Prosserman Centre for Population Health Research, Lunenfeld-Tanenbaum Research Institute, Sinai Health, Toronto, Canada
- Dalla Lana School of Public Health, University of Toronto, Toronto, Canada
| | - Elham Khodayari Moez
- Prosserman Centre for Population Health Research, Lunenfeld-Tanenbaum Research Institute, Sinai Health, Toronto, Canada
| | - Shana J Kim
- Dalla Lana School of Public Health, University of Toronto, Toronto, Canada
| | - Sanjeev Budhathoki
- Prosserman Centre for Population Health Research, Lunenfeld-Tanenbaum Research Institute, Sinai Health, Toronto, Canada
| | - Jennifer D Brooks
- Dalla Lana School of Public Health, University of Toronto, Toronto, Canada
| |
Collapse
|
3
|
Harrington J, Tseliou E, Shah S, Shah KS. Paying Homage to the Power of Proteomics: Insights Into Obesity and Heart Failure From the HOMAGE Trial. J Card Fail 2022; 28:787-788. [PMID: 35304349 DOI: 10.1016/j.cardfail.2022.03.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Accepted: 03/10/2022] [Indexed: 11/24/2022]
Affiliation(s)
| | | | | | - Kevin S Shah
- University of Utah Health, Salt Lake City, Utah.
| |
Collapse
|
4
|
Farrer LA. Welcome message from the Editor-in-Chief. EXPLORATION OF MEDICINE 2020. [DOI: 10.37349/emed.2020.00001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Affiliation(s)
- Lindsay A. Farrer
- Biomedical Genetics Section, Department of Medicine, Boston University School of Medicine, Boston, MA, 02118, USA
| |
Collapse
|