1
|
Zuckerman A, Siedhoff HR, Balderrama A, Li R, Sun GY, Cifu DX, Cernak I, Cui J, Gu Z. Individualized high-resolution analysis to categorize diverse learning and memory deficits in tau rTg4510 mice exposed to low-intensity blast. Front Cell Neurosci 2024; 18:1397046. [PMID: 38948027 PMCID: PMC11212475 DOI: 10.3389/fncel.2024.1397046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Accepted: 05/09/2024] [Indexed: 07/02/2024] Open
Abstract
Mild traumatic brain injury (mTBI) resulting from low-intensity blast (LIB) exposure in military and civilian individuals is linked to enduring behavioral and cognitive abnormalities. These injuries can serve as confounding risk factors for the development of neurodegenerative disorders, including Alzheimer's disease-related dementias (ADRD). Recent animal studies have demonstrated LIB-induced brain damage at the molecular and nanoscale levels. Nevertheless, the mechanisms linking these damages to cognitive abnormalities are unresolved. Challenges preventing the translation of preclinical studies into meaningful findings in "real-world clinics" encompass the heterogeneity observed between different species and strains, variable time durations of the tests, quantification of dosing effects and differing approaches to data analysis. Moreover, while behavioral tests in most pre-clinical studies are conducted at the group level, clinical tests are predominantly assessed on an individual basis. In this investigation, we advanced a high-resolution and sensitive method utilizing the CognitionWall test system and applying reversal learning data to the Boltzmann fitting curves. A flow chart was developed that enable categorizing individual mouse to different levels of learning deficits and patterns. In this study, rTg4510 mice, which represent a neuropathology model due to elevated levels of tau P301L, together with the non-carrier genotype were exposed to LIB. Results revealed distinct and intricate patterns of learning deficits and patterns within each group and in relation to blast exposure. With the current findings, it is possible to establish connections between mice with specific cognitive deficits to molecular changes. This approach can enhance the translational value of preclinical findings and also allow for future development of a precision clinical treatment plan for ameliorating neurologic damage of individuals with mTBI.
Collapse
Affiliation(s)
- Amitai Zuckerman
- Department of Pathology and Anatomical Sciences, University of Missouri School of Medicine, Columbia, MO, United States
- Harry S. Truman Memorial Veterans’ Hospital Research Service, Columbia, MO, United States
| | - Heather R. Siedhoff
- Department of Pathology and Anatomical Sciences, University of Missouri School of Medicine, Columbia, MO, United States
- Harry S. Truman Memorial Veterans’ Hospital Research Service, Columbia, MO, United States
| | - Ashley Balderrama
- Department of Pathology and Anatomical Sciences, University of Missouri School of Medicine, Columbia, MO, United States
- Harry S. Truman Memorial Veterans’ Hospital Research Service, Columbia, MO, United States
| | - Runting Li
- Department of Pathology and Anatomical Sciences, University of Missouri School of Medicine, Columbia, MO, United States
- Harry S. Truman Memorial Veterans’ Hospital Research Service, Columbia, MO, United States
| | - Grace Y. Sun
- Department of Pathology and Anatomical Sciences, University of Missouri School of Medicine, Columbia, MO, United States
- Biochemistry Department, University of Missouri, Columbia, MO, United States
| | - David X. Cifu
- Department of Physical Medicine and Rehabilitation, Virginia Commonwealth University School of Medicine, Richmond, VA, United States
| | - Ibolja Cernak
- Thomas F. Frist, Jr. College of Medicine, Belmont University, Nashville, TN, United States
| | - Jiankun Cui
- Department of Pathology and Anatomical Sciences, University of Missouri School of Medicine, Columbia, MO, United States
- Harry S. Truman Memorial Veterans’ Hospital Research Service, Columbia, MO, United States
| | - Zezong Gu
- Department of Pathology and Anatomical Sciences, University of Missouri School of Medicine, Columbia, MO, United States
- Harry S. Truman Memorial Veterans’ Hospital Research Service, Columbia, MO, United States
| |
Collapse
|
2
|
Zamir A, Ben Zeev T, Levi C, Einstein O, Ratamess NA, van Praag H, Hoffman JR. The effect of supraphysiological dose of nandrolone decanoate administration on the inflammatory, neurotrophin and behavioral response in adult and old male mice. Horm Behav 2023; 156:105444. [PMID: 38344953 DOI: 10.1016/j.yhbeh.2023.105444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 10/16/2023] [Accepted: 10/18/2023] [Indexed: 02/15/2024]
Abstract
This study examined the effect of 6 weeks of supraphysiological nandrolone decanoate (ND) administration in adult mice (7 months) on cognitive function and neuroinflammation during aging. Male C57BL/6 mice were randomized into ND (10 mg·kg-1·wk-1) or control (CTL) groups. Half of the mice were tested at a young (Y) age (ND-Y and CTL-Y), 1 week following final ND administration, while the remaining mice were tested at 16 months (O) (ND-O and CTL-O). Learning and memory were better in young mice compared to older mice, regardless of treatment. ND-O displayed decreased anxiety as compared to all other groups. TNFα and IL1β expression were higher in older mice, regardless of treatment. ND administration in young mice appeared to attenuate the neuroinflammatory response in aging mice as evidenced by decreased COX2, IL-4 and increased IL-10 expression in ND-O compared to CTL-O. BDNF AR and ER expression increased in ND-O compared to CTL-O. Results of the study indicated that supraphysiological ND administration had no negative effect on learning and memory but may attenuate anxiety in older mice. In addition, ND administration in young adult mice may attenuate the inflammatory response during aging, which may be related to elevations in both AR and ER expression.
Collapse
Affiliation(s)
- A Zamir
- Department of Physical Therapy, School of Health Sciences, Ariel University, Israel
| | - T Ben Zeev
- Department of Physical Therapy, School of Health Sciences, Ariel University, Israel
| | - C Levi
- Department of Physical Therapy, School of Health Sciences, Ariel University, Israel
| | - O Einstein
- Department of Physical Therapy, School of Health Sciences, Ariel University, Israel
| | - N A Ratamess
- Department of Kinesiology and Health Sciences, The College of New Jersey, USA
| | - H van Praag
- Stiles-Nicholson Brain Institute, Charles E. Schmidt College of Medicine, Florida Atlantic University, USA
| | - J R Hoffman
- Department of Physical Therapy, School of Health Sciences, Ariel University, Israel.
| |
Collapse
|
3
|
Verdoorn TA, Parry TJ, Pinna G, Lifshitz J. Neurosteroid Receptor Modulators for Treating Traumatic Brain Injury. Neurotherapeutics 2023; 20:1603-1615. [PMID: 37653253 PMCID: PMC10684848 DOI: 10.1007/s13311-023-01428-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/17/2023] [Indexed: 09/02/2023] Open
Abstract
Traumatic brain injury (TBI) triggers wide-ranging pathology that impacts multiple biochemical and physiological systems, both inside and outside the brain. Functional recovery in patients is impeded by early onset brain edema, acute and chronic inflammation, delayed cell death, and neurovascular disruption. Drug treatments that target these deficits are under active development, but it seems likely that fully effective therapy may require interruption of the multiplicity of TBI-induced pathological processes either by a cocktail of drug treatments or a single pleiotropic drug. The complex and highly interconnected biochemical network embodied by the neurosteroid system offers multiple options for the research and development of pleiotropic drug treatments that may provide benefit for those who have suffered a TBI. This narrative review examines the neurosteroids and their signaling systems and proposes directions for their utility in the next stage of TBI drug research and development.
Collapse
Affiliation(s)
- Todd A Verdoorn
- NeuroTrauma Sciences, LLC, 2655 Northwinds Parkway, Alpharetta, GA 30009, USA.
| | - Tom J Parry
- NeuroTrauma Sciences, LLC, 2655 Northwinds Parkway, Alpharetta, GA 30009, USA
| | - Graziano Pinna
- Psychiatric Institute, Department of Psychiatry, University of Illinois at Chicago College of Medicine, 1601 W. Taylor Street, Chicago, IL 60612, USA
| | - Jonathan Lifshitz
- Department of Psychiatry, University of Arizona College of Medicine - Phoenix, 475 N. 5th Street, Phoenix, AZ 85004, USA
| |
Collapse
|
4
|
Devoto C, Guedes VA, Lai C, Leete JJ, Mithani S, Edwards K, Vorn R, Qu BX, Wilde EA, Walker WC, Diaz-Arrastia R, Werner JK, Kenney K, Gill JM. Remote blast-related mild traumatic brain injury is associated with differential expression of exosomal microRNAs identified in neurodegenerative and immunological processes. Brain Inj 2022; 36:652-661. [PMID: 35322723 DOI: 10.1080/02699052.2022.2042854] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
BACKGROUND Blast traumatic brain injury (TBI) and subconcussive blast exposure have been associated, pathologically, with chronic traumatic encephalopathy (CTE) and, clinically, with cognitive and affective symptoms, but the underlying pathomechanisms of these associations are not well understood. We hypothesized that exosomal microRNA (miRNA) expression, and their relation to neurobehavioral outcomes among Veterans with blunt or blast mild TBI (mTBI) may provide insight into possible mechanisms for these associations and therapeutic targets. METHODS This is a subanalysis of a larger Chronic Effects of Neurotrauma Consortium Biomarker Discovery Project. Participants (n = 152) were divided into three groups: Controls (n = 35); Blunt mTBI only (n = 54); and Blast/blast+blunt mTBI (n = 63). Postconcussive and post-traumatic stress symptoms were evaluated using the NSI and PCL-5, respectively. Exosomal levels of 798 miRNA expression were measured. RESULTS In the blast mTBI group, 23 differentially regulated miRNAs were observed compared to the blunt mTBI group and 23 compared to controls. From the pathway analysis, significantly dysregulated miRNAs in the blast exposure group correlated with inflammatory, neurodegenerative, and androgen receptor pathways. DISCUSSION Our findings suggest that chronic neurobehavioral symptoms after blast TBI may pathomechanistically relate to dysregulated cellular pathways involved with neurodegeneration, inflammation, and central hormonal regulation.
Collapse
Affiliation(s)
- Christina Devoto
- National Institute of Nursing Research, National Institutes of Health, Bethesda, Maryland, USA.,Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, Maryland, USA
| | - Vivian A Guedes
- National Institute of Nursing Research, National Institutes of Health, Bethesda, Maryland, USA
| | - Chen Lai
- National Institute of Nursing Research, National Institutes of Health, Bethesda, Maryland, USA
| | - Jacqueline J Leete
- National Institute of Nursing Research, National Institutes of Health, Bethesda, Maryland, USA
| | - Sara Mithani
- National Institute of Nursing Research, National Institutes of Health, Bethesda, Maryland, USA
| | - Katie Edwards
- National Institute of Nursing Research, National Institutes of Health, Bethesda, Maryland, USA.,Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, Maryland, USA
| | - Rany Vorn
- National Institute of Nursing Research, National Institutes of Health, Bethesda, Maryland, USA
| | - Bao-Xi Qu
- Department of Neurology, Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA.,Center for Neuroscience and Regenerative Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA
| | - Elisabeth A Wilde
- Cenc Imaging Core, University of Utah, Salt Lake City, Virginia, USA
| | - William C Walker
- Department of Physical Medicine & Rehabilitation, Virginia Commonwealth University, Richmond, Virginia, USA
| | - Ramon Diaz-Arrastia
- Department of Neurology, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | | | - Kimbra Kenney
- Department of Neurology, Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA.,National Intrepid Center of Excellence, Walter Reed National Military Medical Center, Bethesda, Maryland, USA
| | - Jessica M Gill
- National Institute of Nursing Research, National Institutes of Health, Bethesda, Maryland, USA.,Center for Neuroscience and Regenerative Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA.,Johns Hopkins University, School of Nursing, Baltimore, MD.,Department of Neurology, Johns Hopkins University, School of Medicine, Baltimore, MD
| |
Collapse
|
5
|
Sakib S, Lara NDLEM, Huynh BC, Dobrinski I. Organotypic Rat Testicular Organoids for the Study of Testicular Maturation and Toxicology. Front Endocrinol (Lausanne) 2022; 13:892342. [PMID: 35757431 PMCID: PMC9218276 DOI: 10.3389/fendo.2022.892342] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Accepted: 05/02/2022] [Indexed: 12/26/2022] Open
Abstract
An in vitro system to study testicular maturation in rats, an important model organism for reproductive toxicity, could serve as a platform for high-throughput drug and toxicity screening in a tissue specific context. In vitro maturation of somatic cells and spermatogonia in organ culture systems has been reported. However, this has been a challenge for organoids derived from dissociated testicular cells. Here, we report generation and maintenance of rat testicular organoids in microwell culture for 28 days. We find that rat organoids can be maintained in vitro only at lower than ambient O2 tension of 15% and organoids cultured at 34°C have higher somatic cell maturation and spermatogonial differentiation potential compared to cultures in 37°C. Upon exposure to known toxicants, phthalic acid mono-2-ethylhexyl ester and cadmium chloride, the organoids displayed loss of tight-junction protein Claudin 11 and altered transcription levels of somatic cell markers that are consistent with previous reports in animal models. Therefore, the microwell-derived rat testicular organoids described here can serve as a novel platform for the study of testicular cell maturation and reproductive toxicity in vitro.
Collapse
Affiliation(s)
- Sadman Sakib
- Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, Canada
- Department of Comparative Biology and Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, Calgary, Canada
| | - Nathalia de Lima e Martins Lara
- Department of Comparative Biology and Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, Calgary, Canada
| | - Brandon Christopher Huynh
- Department of Comparative Biology and Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, Calgary, Canada
- Department of Biological Sciences, Faculty of Science, University of Calgary, Calgary, Canada
| | - Ina Dobrinski
- Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, Canada
- Department of Comparative Biology and Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, Calgary, Canada
- *Correspondence: Ina Dobrinski,
| |
Collapse
|