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Bitar L, Stonestreet BS, Lim YP, Qiu J, Chen X, Mir IN, Chalak LF. Association between decreased cord blood inter-alpha inhibitor levels and neonatal encephalopathy at birth. Early Hum Dev 2024; 193:106036. [PMID: 38733833 DOI: 10.1016/j.earlhumdev.2024.106036] [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: 03/29/2024] [Revised: 05/02/2024] [Accepted: 05/04/2024] [Indexed: 05/13/2024]
Abstract
BACKGROUND Inter-alpha inhibitor proteins (IAIPs) are structurally related proteins found in the systemic circulation with immunomodulatory anti-inflammatory properties. Reduced levels are found in inflammatory related conditions including sepsis and necrotizing enterocolitis, and in neonatal rodents after exposure to hypoxia ischemia. In the current study, cord blood IAIP levels were measured in neonates with and without exposure to hypoxic-ischemic encephalopathy (HIE). METHODS This is a prospective cohort study including infants born ≥36 weeks over a one-year period. Term pregnancies were divided into two groups: a "reference control" (uncomplicated term deliveries), and "moderate to severe HIE" (qualifying for therapeutic hypothermia). IAIPs were quantified using a sensitive ELISA on the cord blood samples. RESULTS The study included 57 newborns: Reference control group (n = 13) and moderate/severe HIE group (n = 44). Measurement of IAIP cord blood concentrations in moderate to severe HIE group [278.2 (138.0, 366.0) μg/ml] revealed significantly lower IAIP concentrations compared with the control group [418.6 (384.5, 445.0) μg/ml] (p = 0.002). CONCLUSIONS These findings suggest a potential role for IAIPs as indicators of neonates at risk for HIE. IAIP levels could have diagnostic implications in the management of HIE. Future research is required to explore the relationship between HIE and IAIPs as biomarkers for disease severity. CATEGORY OF STUDY Translational.
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Affiliation(s)
- Lynn Bitar
- Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX, United States of America
| | - Barbara S Stonestreet
- The Alpert Medical School of Brown University, Department of Pediatrics, Women & Infants Hospital of Rhode Island, Providence, RI, United States of America
| | - Yow-Pin Lim
- ProThera Biologics, Inc., Providence, RI, United States of America; The Alpert Medical School of Brown University, Department of Pathology and Laboratory Medicine, Providence, RI, United States of America
| | - Joseph Qiu
- ProThera Biologics, Inc., Providence, RI, United States of America
| | - Xiaodi Chen
- The Alpert Medical School of Brown University, Department of Pediatrics, Women & Infants Hospital of Rhode Island, Providence, RI, United States of America
| | - Imran N Mir
- Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX, United States of America
| | - Lina F Chalak
- Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX, United States of America.
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Chen XF, Wu Y, Kim B, Nguyen KV, Chen A, Qiu J, Santoso AR, Disdier C, Lim YP, Stonestreet BS. Neuroprotective efficacy of hypothermia and Inter-alpha Inhibitor Proteins after hypoxic ischemic brain injury in neonatal rats. Neurotherapeutics 2024; 21:e00341. [PMID: 38453562 PMCID: PMC11070713 DOI: 10.1016/j.neurot.2024.e00341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 02/28/2024] [Accepted: 02/28/2024] [Indexed: 03/09/2024] Open
Abstract
Therapeutic hypothermia is the standard of care for hypoxic-ischemic (HI) encephalopathy. Inter-alpha Inhibitor Proteins (IAIPs) attenuate brain injury after HI in neonatal rats. Human (h) IAIPs (60 mg/kg) or placebo (PL) were given 15 min, 24 and 48 h to postnatal (P) day-7 rats after carotid ligation and 8% oxygen for 90 min with (30 °C) and without (36 °C) exposure to hypothermia 1.5 h after HI for 3 h. Hemispheric volume atrophy (P14) and neurobehavioral tests including righting reflex (P8-P10), small open field (P13-P14), and negative geotaxis (P14) were determined. Hemispheric volume atrophy in males was reduced (P < 0.05) by 41.9% in the normothermic-IAIP and 28.1% in the hypothermic-IAIP compared with the normothermic-PL group, and in females reduced (P < 0.05) by 30.3% in the normothermic-IAIP, 45.7% in hypothermic-PL, and 55.2% in hypothermic-IAIP compared with the normothermic-PL group after HI. Hypothermia improved (P < 0.05) the neuroprotective effects of hIAIPs in females. The neuroprotective efficacy of hIAIPs was comparable to hypothermia in female rats (P = 0.183). Treatment with hIAIPs, hypothermia, and hIAIPs with hypothermia decreased (P < 0.05) the latency to enter the peripheral zone in the small open field test in males. We conclude that hIAIPs provide neuroprotection from HI brain injury that is comparable to the protection by hypothermia, hypothermia increases the effects of hIAIPs in females, and hIAIPs and hypothermia exhibit some sex-related differential effects.
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Affiliation(s)
- Xiaodi F Chen
- Department of Pediatrics, Women & Infants Hospital of Rhode Island, USA; The Alpert Medical School of Brown University, USA
| | - Yuqi Wu
- Department of Pediatrics, Women & Infants Hospital of Rhode Island, USA; The Alpert Medical School of Brown University, USA
| | - Boram Kim
- Department of Pediatrics, Women & Infants Hospital of Rhode Island, USA; The Alpert Medical School of Brown University, USA
| | - Kevin V Nguyen
- Department of Pediatrics, Women & Infants Hospital of Rhode Island, USA; The Alpert Medical School of Brown University, USA
| | - Ainuo Chen
- Department of Pediatrics, Women & Infants Hospital of Rhode Island, USA; The Alpert Medical School of Brown University, USA
| | - Joseph Qiu
- ProThera Biologics, Inc., Providence, RI, USA
| | | | - Clemence Disdier
- Department of Pediatrics, Women & Infants Hospital of Rhode Island, USA; The Alpert Medical School of Brown University, USA
| | - Yow-Pin Lim
- ProThera Biologics, Inc., Providence, RI, USA; The Alpert Medical School of Brown University, Department of Pathology and Laboratory Medicine, Providence, RI, USA
| | - Barbara S Stonestreet
- Department of Pediatrics, Women & Infants Hospital of Rhode Island, USA; The Alpert Medical School of Brown University, USA; Department of Molecular Biology, Cell Biology and Biochemistry, Brown University, Providence, RI, USA.
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Logsdon AF, Erickson MA, Herbert MJ, Noonan C, Foresi BD, Qiu J, Lim YP, Banks WA, Stonestreet BS. Inter-alpha inhibitor proteins attenuate lipopolysaccharide-induced blood-brain barrier disruption in neonatal mice. Exp Neurol 2023; 370:114563. [PMID: 37806514 DOI: 10.1016/j.expneurol.2023.114563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 09/21/2023] [Accepted: 10/05/2023] [Indexed: 10/10/2023]
Abstract
There is a paucity of information regarding efficacious pharmacological neuroprotective strategies to attenuate or reduce brain injury in neonates. Lipopolysaccharide (LPS) disrupts blood-brain barrier (BBB) function in adult rodents and increases inflammation in adults and neonates. Human blood-derived Inter-alpha Inhibitor Proteins (IAIPs) are neuroprotective, improve neonatal survival after LPS, and attenuate LPS-induced disruption of the BBB in adult male mice. We hypothesized that LPS also disrupts the function of the BBB in neonatal mice and that IAIPs attenuate the LPS-induced BBB disruption in male and female neonatal mice. IAIPs were administered to neonatal mice after LPS and BBB permeability quantified with intravenous 14C-sucrose and 99mTc-albumin. Although repeated high doses (3 mg/kg) of LPS in neonates resulted in high mortality rates and a robust increase in BBB permeability, repeated lower doses (1 mg/kg) of LPS resulted in lower mortality rates and disruption of the BBB in both male and female neonates. IAIP treatment attenuated disruption of the BBB similarly to sucrose and albumin after exposure to low-dose LPS in neonatal mice. Exposure to low-dose LPS elevated IAIP concentrations in blood, but it did not appear to increase the systemic levels of Pre-alpha inhibitor (PaI), one of the family members of the IAIPs that contains heavy chain 3. We conclude that IAIPs attenuate LPS-related disruption of the BBB in both male and female neonatal mice.
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Affiliation(s)
- Aric F Logsdon
- Geriatric Research Education and Clinical Center (GRECC), Veterans Affairs Puget Sound Health Care System, Seattle, WA 98108, USA; Division of Gerontology and Geriatric Medicine, Department of Medicine, University of Washington School of Medicine, Seattle, WA 98195, USA.
| | - Michelle A Erickson
- Geriatric Research Education and Clinical Center (GRECC), Veterans Affairs Puget Sound Health Care System, Seattle, WA 98108, USA; Division of Gerontology and Geriatric Medicine, Department of Medicine, University of Washington School of Medicine, Seattle, WA 98195, USA
| | - Melanie J Herbert
- Geriatric Research Education and Clinical Center (GRECC), Veterans Affairs Puget Sound Health Care System, Seattle, WA 98108, USA
| | - Cassidy Noonan
- Geriatric Research Education and Clinical Center (GRECC), Veterans Affairs Puget Sound Health Care System, Seattle, WA 98108, USA
| | - Brian D Foresi
- College of Medicine, Northeast Ohio Medical University, Rootstown, OH 44272, USA
| | - Joseph Qiu
- ProThera Biologics, Inc., Providence, RI 02903, USA
| | - Yow-Pin Lim
- ProThera Biologics, Inc., Providence, RI 02903, USA; Department of Pathology and Laboratory Medicine, The Alpert Medical School of Brown University, Providence, RI, 02905, USA
| | - William A Banks
- Geriatric Research Education and Clinical Center (GRECC), Veterans Affairs Puget Sound Health Care System, Seattle, WA 98108, USA; Division of Gerontology and Geriatric Medicine, Department of Medicine, University of Washington School of Medicine, Seattle, WA 98195, USA
| | - Barbara S Stonestreet
- The Alpert Medical School of Brown University, Department of Pediatrics, Women & Infants Hospital of Rhode Island, Providence, RI 02905, USA
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Girolamo F, Lim YP, Virgintino D, Stonestreet BS, Chen XF. Inter-Alpha Inhibitor Proteins Modify the Microvasculature after Exposure to Hypoxia-Ischemia and Hypoxia in Neonatal Rats. Int J Mol Sci 2023; 24:6743. [PMID: 37047713 PMCID: PMC10094872 DOI: 10.3390/ijms24076743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 03/21/2023] [Accepted: 03/29/2023] [Indexed: 04/08/2023] Open
Abstract
Microvasculature develops during early brain development. Hypoxia-ischemia (HI) and hypoxia (H) predispose to brain injury in neonates. Inter-alpha inhibitor proteins (IAIPs) attenuate injury to the neonatal brain after exposure to HI. However, the effects of IAIPs on the brain microvasculature after exposure to HI have not been examined in neonates. Postnatal day-7 rats were exposed to sham treatment or right carotid artery ligation and 8% oxygen for 90 min. HI comprises hypoxia (H) and ischemia to the right hemisphere (HI-right) and hypoxia to the whole body, including the left hemisphere (H-left). Human IAIPs (hIAIPs, 30 mg/kg) or placebo were injected immediately, 24 and 48 h after HI/H. The brains were analyzed 72 h after HI/H to determine the effects of hIAIPs on the microvasculature by laminin immunohistochemistry and calculation of (1) the percentage area stained by laminin, (2) cumulative microvessel length, and (3) density of tunneling nanotubes (TNTs), which are sensitive indicators of the earliest phases of neo-vascularization/collateralization. hIAIPs mainly affected the percent of the laminin-stained area after HI/H, cumulative vessel length after H but not HI, and TNT density in females but not males. hIAIPs modify the effects of HI/H on the microvasculature after brain injury in neonatal rats and exhibit sex-related differential effects. Our findings suggest that treatment with hIAIPs after exposure to H and HI in neonatal rats affects the laminin content of the vessel basal lamina and angiogenic responses in a sex-related fashion.
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Affiliation(s)
- Francesco Girolamo
- Department of Translational Biomedicines and Neuroscience (DiBraiN), University of Bari School of Medicine, 70124 Bari, Italy
| | - Yow-Pin Lim
- ProThera Biologics, Inc., Providence, RI 02905, USA
- Department of Pathology and Laboratory Medicine, Alpert Medical School of Brown University, Providence, RI 02905, USA
| | - Daniela Virgintino
- Department of Translational Biomedicines and Neuroscience (DiBraiN), University of Bari School of Medicine, 70124 Bari, Italy
| | - Barbara S. Stonestreet
- Women & Infants Hospital of Rhode Island, Alpert Medical School of Brown University, Providence, RI 02905, USA
| | - Xiaodi F. Chen
- Women & Infants Hospital of Rhode Island, Alpert Medical School of Brown University, Providence, RI 02905, USA
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Chen X, Zhang J, Wu Y, Tucker R, Baird GL, Domonoske R, Barrios-Anderson A, Lim YP, Bath K, Walsh EG, Stonestreet BS. Inter-alpha Inhibitor Proteins Ameliorate Brain Injury and Improve Behavioral Outcomes in a Sex-Dependent Manner After Exposure to Neonatal Hypoxia Ischemia in Newborn and Young Adult Rats. Neurotherapeutics 2022; 19:528-549. [PMID: 35290609 PMCID: PMC9226254 DOI: 10.1007/s13311-022-01217-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/07/2022] [Indexed: 12/16/2022] Open
Abstract
Hypoxic-ischemic (HI) brain injury is a major contributor to neurodevelopmental morbidities. Inter-alpha inhibitor proteins (IAIPs) have neuroprotective effects on HI-related brain injury in neonatal rats. However, the effects of treatment with IAIPs on sequential behavioral, MRI, and histopathological abnormalities in the young adult brain after treatment with IAIPs in neonates remain to be determined. The objective of this study was to examine the neuroprotective effects of IAIPs at different neurodevelopmental stages from newborn to young adults after exposure of neonates to HI injury. IAIPs were given as 11-sequential 30-mg/kg doses to postnatal (P) day 7-21 rats after right common carotid artery ligation and exposure to 90 min of 8% oxygen. The resulting brain edema and injury were examined by T2-weighted magnetic resonance imaging (MRI) and cresyl violet staining, respectively. The mean T2 values of the ipsilateral hemisphere from MRI slices 6 to 10 were reduced in IAIP-treated HI males + females on P8, P9, and P10 and females on P8, P9, P10, and P14. IAIP treatment reduced hemispheric volume atrophy by 44.5 ± 29.7% in adult male + female P42 rats and improved general locomotor abilities measured by the righting reflex over time at P7.5, P8, and P9 in males + females and males and muscle strength/endurance measured by wire hang on P16 in males + females and females. IAIPs provided beneficial effects during the learning phase of the Morris water maze with females exhibiting beneficial effects. IAIPs confer neuroprotection from HI-related brain injury in neonates and even in adult rats and beneficial MRI and behavioral benefits in a sex-dependent manner.
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Affiliation(s)
- Xiaodi Chen
- Department of Pediatrics, Infants Hospital of Rhode Island, Warren Alpert Medical School of Brown University, Women &101 Dudley Street, Providence, RI, 02905-2499, USA
| | - Jiyong Zhang
- Department of Pediatrics, Infants Hospital of Rhode Island, Warren Alpert Medical School of Brown University, Women &101 Dudley Street, Providence, RI, 02905-2499, USA
| | - Yuqi Wu
- Department of Pediatrics, Infants Hospital of Rhode Island, Warren Alpert Medical School of Brown University, Women &101 Dudley Street, Providence, RI, 02905-2499, USA
| | - Richard Tucker
- Department of Pediatrics, Infants Hospital of Rhode Island, Warren Alpert Medical School of Brown University, Women &101 Dudley Street, Providence, RI, 02905-2499, USA
| | - Grayson L Baird
- Department of Diagnostic Imaging, Biostatistics Core Lifespan Hospital System, Rhode Island Hospital, Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Rose Domonoske
- Department of Pediatrics, Infants Hospital of Rhode Island, Warren Alpert Medical School of Brown University, Women &101 Dudley Street, Providence, RI, 02905-2499, USA
| | - Adriel Barrios-Anderson
- Department of Pediatrics, Infants Hospital of Rhode Island, Warren Alpert Medical School of Brown University, Women &101 Dudley Street, Providence, RI, 02905-2499, USA
| | - Yow-Pin Lim
- ProThera Biologics, Inc, Providence, RI, USA
- Department of Pathology and Laboratory Medicine, Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Kevin Bath
- Division of Developmental Neuroscience, New York State Psychiatric Institute, New York, NY, USA
- Department of Psychiatry, Columbia University Irving Medical College, New York, NY, USA
| | - Edward G Walsh
- Department of Neuroscience, Brown University, Providence, RI, USA
| | - Barbara S Stonestreet
- Department of Pediatrics, Infants Hospital of Rhode Island, Warren Alpert Medical School of Brown University, Women &101 Dudley Street, Providence, RI, 02905-2499, USA.
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Changes in Cellular Localization of Inter-Alpha Inhibitor Proteins after Cerebral Ischemia in the Near-Term Ovine Fetus. Int J Mol Sci 2021; 22:ijms221910751. [PMID: 34639091 PMCID: PMC8509455 DOI: 10.3390/ijms221910751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 09/17/2021] [Accepted: 09/21/2021] [Indexed: 12/04/2022] Open
Abstract
Inter-alpha Inhibitor Proteins (IAIPs) are key immunomodulatory molecules. Endogenous IAIPs are present in human, rodent, and sheep brains, and are variably localized to the cytoplasm and nuclei at multiple developmental stages. We have previously reported that ischemia-reperfusion (I/R) reduces IAIP concentrations in the fetal sheep brain. In this study, we examined the effect of I/R on total, cytoplasmic, and nuclear expression of IAIPs in neurons (NeuN+), microglia (Iba1+), oligodendrocytes (Olig2+) and proliferating cells (Ki67+), and their co-localization with histones and the endoplasmic reticulum in fetal brain cells. At 128 days of gestation, fetal sheep were exposed to Sham (n = 6) or I/R induced by cerebral ischemia for 30 min with reperfusion for 7 days (n = 5). Although I/R did not change the total number of IAIP+ cells in the cerebral cortex or white matter, cells with IAIP+ cytoplasm decreased, whereas cells with IAIP+ nuclei increased in the cortex. I/R reduced total neuronal number but did not change the IAIP+ neuronal number. The proportion of cytoplasmic IAIP+ neurons was reduced, but there was no change in the number of nuclear IAIP+ neurons. I/R increased the number of microglia and decreased the total numbers of IAIP+ microglia and nuclear IAIP+ microglia, but not the number of cytoplasmic IAIP+ microglia. I/R was associated with reduced numbers of oligodendrocytes and increased proliferating cells, without changes in the subcellular IAIP localization. IAIPs co-localized with the endoplasmic reticulum and histones. In conclusion, I/R alters the subcellular localization of IAIPs in cortical neurons and microglia but not in oligodendrocytes or proliferating cells. Taken together with the known neuroprotective effects of exogenous IAIPs, we speculate that endogenous IAIPs may play a role during recovery from I/R.
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McCullough LD, Roy-O'Reilly M, Lai YJ, Patrizz A, Xu Y, Lee J, Holmes A, Kraushaar DC, Chauhan A, Sansing LH, Stonestreet BS, Zhu L, Kofler J, Lim YP, Venna VR. Exogenous inter-α inhibitor proteins prevent cell death and improve ischemic stroke outcomes in mice. J Clin Invest 2021; 131:144898. [PMID: 34580244 DOI: 10.1172/jci144898] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 07/12/2021] [Indexed: 12/14/2022] Open
Abstract
Inter-α inhibitor proteins (IAIPs) are a family of endogenous plasma and extracellular matrix molecules. IAIPs suppress proinflammatory cytokines, limit excess complement activation, and bind extracellular histones to form IAIP-histone complexes, leading to neutralization of histone-associated cytotoxicity in models of sepsis. Many of these detrimental processes also play critical roles in the pathophysiology of ischemic stroke. In this study, we first assessed the clinical relevance of IAIPs in stroke and then tested the therapeutic efficacy of exogenous IAIPs in several experimental stroke models. IAIP levels were reduced in both ischemic stroke patients and in mice subjected to experimental ischemic stroke when compared with controls. Post-stroke administration of IAIP significantly improved stroke outcomes across multiple stroke models, even when given 6 hours after stroke onset. Importantly, the beneficial effects of delayed IAIP treatment were observed in both young and aged mice. Using targeted gene expression analysis, we identified a receptor for complement activation, C5aR1, that was highly suppressed in both the blood and brain of IAIP-treated animals. Subsequent experiments using C5aR1-knockout mice demonstrated that the beneficial effects of IAIPs are mediated in part by C5aR1. These results indicate that IAIP is a potential therapeutic candidate for the treatment of ischemic stroke.
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Affiliation(s)
- Louise D McCullough
- Department of Neurology, McGovern Medical School at University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Meaghan Roy-O'Reilly
- Department of Neurology, McGovern Medical School at University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Yun-Ju Lai
- Department of Neurology, McGovern Medical School at University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Anthony Patrizz
- Department of Neurology, McGovern Medical School at University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Yan Xu
- Department of Neurology, McGovern Medical School at University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Juneyoung Lee
- Department of Neurology, McGovern Medical School at University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Aleah Holmes
- Department of Neurology, McGovern Medical School at University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Daniel C Kraushaar
- Genomic and RNA Profiling Core, Baylor College of Medicine, Houston, Texas, USA
| | - Anjali Chauhan
- Department of Neurology, McGovern Medical School at University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Lauren H Sansing
- Department of Neurology, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Barbara S Stonestreet
- Department of Pediatrics, Women and Infants Hospital of Rhode Island, The Alpert Medical School of Brown University, Providence, Rhode Island, USA
| | - Liang Zhu
- Biostatistics and Epidemiology Research Design Core, Center for Clinical and Translational Sciences, University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Julia Kofler
- Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Yow-Pin Lim
- ProThera Biologics Inc., Providence, Rhode Island, USA.,Department of Pathology and Laboratory Medicine, The Alpert Medical School of Brown University, Providence, Rhode Island, USA
| | - Venugopal Reddy Venna
- Department of Neurology, McGovern Medical School at University of Texas Health Science Center at Houston, Houston, Texas, USA
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Hatayama K, Chen RH, Hanson J, Teshigawara K, Qiu J, Santoso A, Disdier C, Nakada S, Chen X, Nishibori M, Lim YP, Stonestreet BS. High-mobility group box-1 and inter-alpha inhibitor proteins: In vitro binding and co-localization in cerebral cortex after hypoxic-ischemic injury. FASEB J 2021; 35:e21399. [PMID: 33559227 DOI: 10.1096/fj.202002109rr] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 01/09/2021] [Accepted: 01/12/2021] [Indexed: 12/17/2022]
Abstract
The high-mobility group box-1 (HMGB1) protein is a transcription-regulating protein located in the nucleus. However, it serves as a damage-associated molecular pattern protein that activates immune cells and stimulates inflammatory cytokines to accentuate neuroinflammation after release from damaged cells. In contrast, Inter-alpha Inhibitor Proteins (IAIPs) are proteins with immunomodulatory effects including inhibition of pro-inflammatory cytokines. We have demonstrated that IAIPs exhibit neuroprotective properties in neonatal rats exposed to hypoxic-ischemic (HI) brain injury. In addition, previous studies have suggested that the light chain of IAIPs, bikunin, may exert its anti-inflammatory effects by inhibiting HMGB1 in a variety of different injury models in adult subjects. The objectives of the current study were to confirm whether HMGB1 is a target of IAIPs by investigating the potential binding characteristics of HMGB1 and IAIPs in vitro, and co-localization in vivo in cerebral cortices after exposure to HI injury. Solid-phase binding assays and surface plasmon resonance (SPR) were used to determine the physical binding characteristics between IAIPs and HMGB1. Cellular localizations of IAIPs-HMGB1 in neonatal rat cortex were visualized by double labeling with anti-IAIPs and anti-HMGB1 antibodies. Solid-phase binding and SPR demonstrated specific binding between IAIPs and HMGB1 in vitro. Cortical cytoplasmic and nuclear co-localization of IAIPs and HMGB1 were detected by immunofluorescent staining in control and rats immediately and 3 hours after HI. In conclusion, HMGB1 and IAIPs exhibit direct binding in vitro and co-localization in vivo in neonatal rats exposed to HI brain injury suggesting HMGB1 could be a target of IAIPs.
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Affiliation(s)
- Kazuki Hatayama
- Women & Infants Hospital of Rhode Island, Alpert Medical School of Brown University, Providence, RI, USA
| | - Ray H Chen
- Women & Infants Hospital of Rhode Island, Alpert Medical School of Brown University, Providence, RI, USA
| | - Jordan Hanson
- Women & Infants Hospital of Rhode Island, Alpert Medical School of Brown University, Providence, RI, USA
| | - Kiyoshi Teshigawara
- Department of Pharmacology, Okayama University Graduate School of Medicine, Okayama, Japan
| | - Joseph Qiu
- ProThera Biologics, Inc., Providence, RI, USA
| | | | - Clémence Disdier
- Women & Infants Hospital of Rhode Island, Alpert Medical School of Brown University, Providence, RI, USA
| | - Sakura Nakada
- Women & Infants Hospital of Rhode Island, Alpert Medical School of Brown University, Providence, RI, USA
| | - Xiaodi Chen
- Women & Infants Hospital of Rhode Island, Alpert Medical School of Brown University, Providence, RI, USA
| | - Masahiro Nishibori
- Department of Pharmacology, Okayama University Graduate School of Medicine, Okayama, Japan
| | - Yow-Pin Lim
- ProThera Biologics, Inc., Providence, RI, USA.,Department Pathology and Laboratory Medicine, Alpert Medical School of Brown University, Providence, RI, USA
| | - Barbara S Stonestreet
- Women & Infants Hospital of Rhode Island, Alpert Medical School of Brown University, Providence, RI, USA
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9
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Chen X, Song D, Nakada S, Qiu J, Iwamoto K, Chen RH, Lim YP, Jusko WJ, Stonestreet BS. Pharmacokinetics of Inter-Alpha Inhibitor Proteins and Effects on Hemostasis After Hypoxic-Ischemic Brain Injury in Neonatal Rats. Curr Pharm Des 2021; 26:3997-4006. [PMID: 32316887 DOI: 10.2174/1381612826666200421123242] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Accepted: 04/08/2020] [Indexed: 12/31/2022]
Abstract
BACKGROUND Hypoxic-ischemic (HI) brain injury is a leading cause of long-term neurodevelopmental morbidities in neonates. Human plasma-derived Inter-Alpha Inhibitor Proteins (hIAIPs) are neuroprotective after HI brain injury in neonatal rats. The light chain (bikunin) of hIAIPs inhibits proteases involved in the coagulation of blood. Newborns exposed to HI can be at risk for significant bleeding in the brain and other organs. OBJECTIVE The objectives of the present study were to assess the pharmacokinetics (PK) and the duration of bleeding after intraperitoneal (IP) administration of hIAIPs in HI-exposed male and female neonatal rats. METHODS HI was induced with the Rice-Vannucci method in postnatal (P) day-7 rats. After the right common carotid artery ligation, rats were exposed to 90 min of 8% oxygen. hIAIPs (30 mg/kg, IP) were given immediately after Sham or HI exposure in the PK study and serum was collected 1, 6, 12, 24, or 36 h after the injections. Serum hIAIP concentrations were measured with a competitive ELISA. ADAPT5 software was used to fit the pooled PK data considering first-order absorption and disposition. hIAIPs (60 mg/kg, IP) were given in the bleeding time studies at 0, 24 and 48 h after HI with tail bleeding times measured 72 h after HI. RESULTS IP administration yielded significant systemic exposure to hIAIPs with PK being affected markedly including primarily faster absorption and reduced elimination as a result of HI and modestly of sex-related differences. hIAIP administration did not affect bleeding times after HI. CONCLUSION These results will help to inform hIAIP dosing regimen schedules in studies of neuroprotection in neonates exposed to HI.
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Affiliation(s)
- Xiaodi Chen
- Department of Pediatrics, Women & Infants Hospital of Rhode Island, The Alpert Medical School of Brown University, Providence, RI, United States
| | - Dawei Song
- School of Pharmacy and Pharmaceutical Sciences, University at Buffalo, Buffalo, NY, United States
| | - Sakura Nakada
- Department of Pediatrics, Women & Infants Hospital of Rhode Island, The Alpert Medical School of Brown University, Providence, RI, United States
| | - Joseph Qiu
- ProThera Biologics, Inc., Providence, RI, United States
| | - Karin Iwamoto
- Department of Pediatrics, Women & Infants Hospital of Rhode Island, The Alpert Medical School of Brown University, Providence, RI, United States
| | - Ray H Chen
- Department of Pediatrics, Women & Infants Hospital of Rhode Island, The Alpert Medical School of Brown University, Providence, RI, United States
| | - Yow-Pin Lim
- ProThera Biologics, Inc., Providence, RI, United States
| | - William J Jusko
- School of Pharmacy and Pharmaceutical Sciences, University at Buffalo, Buffalo, NY, United States
| | - Barbara S Stonestreet
- Department of Pediatrics, Women & Infants Hospital of Rhode Island, The Alpert Medical School of Brown University, Providence, RI, United States
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10
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Bradford A, Hernandez M, Kearney E, Theriault L, Lim YP, Stonestreet BS, Threlkeld SW. Effects of Juvenile or Adolescent Working Memory Experience and Inter-Alpha Inhibitor Protein Treatment after Neonatal Hypoxia-Ischemia. Brain Sci 2020; 10:E999. [PMID: 33348631 PMCID: PMC7765798 DOI: 10.3390/brainsci10120999] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 12/04/2020] [Accepted: 12/15/2020] [Indexed: 12/24/2022] Open
Abstract
Hypoxic-Ischemic (HI) brain injury in the neonate contributes to life-long cognitive impairment. Early diagnosis and therapeutic interventions are critical but limited. We previously reported in a rat model of HI two interventional approaches that improve cognitive and sensory function: administration of Inter-alpha Inhibitor Proteins (IAIPs) and early experience in an eight-arm radial water maze (RWM) task. Here, we expanded these studies to examine the combined effects of IAIPs and multiple weeks of RWM assessment beginning with juvenile or adolescent rats to evaluate optimal age windows for behavioral interventions. Subjects were divided into treatment groups; HI with vehicle, sham surgery with vehicle, and HI with IAIPs, and received either juvenile (P31 initiation) or adolescent (P52 initiation) RWM testing, followed by adult retesting. Error rates on the RWM decreased across weeks for all conditions. Whereas, HI injury impaired global performance as compared to shams. IAIP-treated HI subjects tested as juveniles made fewer errors as compared to their untreated HI counterparts. The juvenile group made significantly fewer errors on moderate demand trials and showed improved retention as compared to the adolescent group during the first week of adult retesting. Together, results support and extend our previous findings that combining behavioral and anti-inflammatory interventions in the presence of HI improves subsequent learning performance. Results further indicate sensitive periods for behavioral interventions to improve cognitive outcomes. Specifically, early life cognitive experience can improve long-term learning performance even in the presence of HI injury. Results from this study provide insight into typical brain development and the impact of developmentally targeted therapeutics and task-specific experience on subsequent cognitive processing.
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Affiliation(s)
- Aaron Bradford
- Neuroscience Program, School of Health Sciences, Regis College, 235 Wellesley Street, Weston, MA 02493, USA; (A.B.); (M.H.); (E.K.); (L.T.)
| | - Miranda Hernandez
- Neuroscience Program, School of Health Sciences, Regis College, 235 Wellesley Street, Weston, MA 02493, USA; (A.B.); (M.H.); (E.K.); (L.T.)
| | - Elaine Kearney
- Neuroscience Program, School of Health Sciences, Regis College, 235 Wellesley Street, Weston, MA 02493, USA; (A.B.); (M.H.); (E.K.); (L.T.)
| | - Luke Theriault
- Neuroscience Program, School of Health Sciences, Regis College, 235 Wellesley Street, Weston, MA 02493, USA; (A.B.); (M.H.); (E.K.); (L.T.)
| | - Yow-Pin Lim
- ProThera Biologics, Inc., 349 Eddy Street, Providence, RI 02903, USA;
- Department of Pathology and Laboratory Medicine, The Alpert Medical School of Brown University, 222 Richmond Street, Providence, RI 02903, USA
| | - Barbara S. Stonestreet
- Department of Pediatrics, The Alpert Medical School of Brown University, Women & Infants Hospital of Rhode Island, 101 Dudley Street, Providence, RI 02905, USA;
| | - Steven W. Threlkeld
- Neuroscience Program, School of Health Sciences, Regis College, 235 Wellesley Street, Weston, MA 02493, USA; (A.B.); (M.H.); (E.K.); (L.T.)
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11
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Koehn LM, Chen X, Logsdon AF, Lim YP, Stonestreet BS. Novel Neuroprotective Agents to Treat Neonatal Hypoxic-Ischemic Encephalopathy: Inter-Alpha Inhibitor Proteins. Int J Mol Sci 2020; 21:E9193. [PMID: 33276548 PMCID: PMC7731124 DOI: 10.3390/ijms21239193] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 11/27/2020] [Accepted: 11/30/2020] [Indexed: 02/02/2023] Open
Abstract
Perinatal hypoxia-ischemia (HI) is a major cause of brain injury and mortality in neonates. Hypoxic-ischemic encephalopathy (HIE) predisposes infants to long-term cognitive deficits that influence their quality of life and place a large burden on society. The only approved treatment to protect the brain after HI is therapeutic hypothermia, which has limited effectiveness, a narrow therapeutic time window, and is not considered safe for treatment of premature infants. Alternative or adjunctive therapies are needed to improve outcomes of full-term and premature infants after exposure to HI. Inter-alpha inhibitor proteins (IAIPs) are immunomodulatory molecules that are proposed to limit the progression of neonatal inflammatory conditions, such as sepsis. Inflammation exacerbates neonatal HIE and suggests that IAIPs could attenuate HI-related brain injury and improve cognitive outcomes associated with HIE. Recent studies have shown that intraperitoneal treatment with IAIPs can decrease neuronal and non-neuronal cell death, attenuate glial responses and leukocyte invasion, and provide long-term behavioral benefits in neonatal rat models of HI-related brain injury. The present review summarizes these findings and outlines the remaining experimental analyses necessary to determine the clinical applicability of this promising neuroprotective treatment for neonatal HI-related brain injury.
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Affiliation(s)
- Liam M. Koehn
- Department of Pediatrics, The Alpert Medical School of Brown University, Women & Infants Hospital of Rhode Island, Providence, RI 02905, USA; (L.M.K.); (X.C.)
| | - Xiaodi Chen
- Department of Pediatrics, The Alpert Medical School of Brown University, Women & Infants Hospital of Rhode Island, Providence, RI 02905, USA; (L.M.K.); (X.C.)
| | - Aric F. Logsdon
- Geriatrics Research Education and Clinical Center, Veterans Affairs Puget Sound Health Care System, Seattle, WA 98108, USA;
- Department of Medicine, Division of Gerontology and Geriatric Medicine, University of Washington School of Medicine, Seattle, WA 98195, USA
| | - Yow-Pin Lim
- ProThera Biologics, Inc., Providence, RI 02903, USA;
- Department of Pathology and Laboratory Medicine, The Alpert Medical School of Brown University, Providence, RI 02903, USA
| | - Barbara S. Stonestreet
- Department of Pediatrics, The Alpert Medical School of Brown University, Women & Infants Hospital of Rhode Island, Providence, RI 02905, USA; (L.M.K.); (X.C.)
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12
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Granzymes in cardiovascular injury and disease. Cell Signal 2020; 76:109804. [PMID: 33035645 DOI: 10.1016/j.cellsig.2020.109804] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 10/02/2020] [Accepted: 10/04/2020] [Indexed: 12/17/2022]
Abstract
Chronic inflammation and impaired wound healing play important roles in the pathophysiology of cardiovascular diseases. Moreover, the aberrant secretion of proteases plays a critical role in pathological tissue remodeling in chronic inflammatory conditions. Human Granzymes (Granule secreted enzymes - Gzms) comprise a family of five (GzmA, B, H, K, M) cell-secreted serine proteases. Although each unique in function and substrate specificities, Gzms were originally thought to share redundant, intracellular roles in cytotoxic lymphocyte-induced cell death. However, an abundance of evidence has challenged this dogma. It is now recognized, that individual Gzms exhibit unique substrate repertoires and functions both intracellularly and extracellularly. In the extracellular milieu, Gzms contribute to inflammation, vascular dysfunction and permeability, reduced cell adhesion, release of matrix-sequestered growth factors, receptor activation, and extracellular matrix cleavage. Despite these recent findings, the non-cytotoxic functions of Gzms in the context of cardiovascular disease pathogenesis remain poorly understood. Minimally detected in tissues and bodily fluids of normal individuals, GzmB is elevated in patients with acute coronary syndromes, coronary artery disease, and myocardial infarction. Pre-clinical animal models have exemplified the importance of GzmB in atherosclerosis, aortic aneurysm, and cardiac fibrosis as animals deficient in GzmB exhibit reduced tissue remodeling, improved disease phenotypes and increased survival. Although a role for GzmB in cardiovascular disease is described, further work to elucidate the mechanisms that underpin the remaining human Gzms activity in cardiovascular disease is necessary. The present review provides a summary of the pre-clinical and clinical evidence, as well as emerging areas of research pertaining to Gzms in tissue remodeling and cardiovascular disease.
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13
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Schuffels S, Nakada S, Wu Y, Lim YP, Chen X, Stonestreet BS. Effects of inter-alpha inhibitor proteins on brain injury after exposure of neonatal rats to severe hypoxia-ischemia. Exp Neurol 2020; 334:113442. [PMID: 32896573 DOI: 10.1016/j.expneurol.2020.113442] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 07/31/2020] [Accepted: 08/24/2020] [Indexed: 12/25/2022]
Abstract
Hypoxic-ischemic (HI) brain injury is one of the most common neurological problems occurring in premature and full-term infants after perinatal complications. Hypothermia is the only treatment approved for HI encephalopathy in newborns. However, this treatment is only partially protective, cannot be used to treat premature infants, and has limited efficacy to treat severe HI encephalopathy. Inflammation contributes to the evolution of HI brain injury in neonates. Inter-alpha Inhibitor Proteins (IAIPs) are immunomodulatory proteins that have neuroprotective properties after exposure to moderate HI in neonatal rats. The objective of the current study was to determine the neuroprotective efficacy of treatment with IAIPs starting immediately after or with a delay of one hour after exposure to severe HI of 120 min duration. One hundred and forty-six 7-day-old rat pups were randomized to sham control, HI and immediate treatment with IAIPs (60 mg/kg) or placebo (PL), and sham, HI and delayed treatment with IAIPs or PL. IAIPs or PL were given at zero, 24, and 48 h after HI or 1, 24 and 48 h after HI. Total brain infarct volume was determined 72 h after exposure to HI. Treatment with IAIPs immediately after HI decreased (P < 0.05) infarct volumes by 58.0% and 44.5% in male and female neonatal rats, respectively. Delayed treatment with IAIPs after HI decreased (P < 0.05) infarct volumes by 23.7% in male, but not in female rats. We conclude that IAIPs exert neuroprotective effects even after exposure to severe HI in neonatal rats and appear to exhibit some sex-related differential effects.
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Affiliation(s)
- Stephanie Schuffels
- Department of Pediatrics, Women & Infants Hospital of Rhode Island, The Alpert Medical School of Brown University, United States of America
| | - Sakura Nakada
- Department of Pediatrics, Women & Infants Hospital of Rhode Island, The Alpert Medical School of Brown University, United States of America
| | - Yuqi Wu
- Department of Pediatrics, Women & Infants Hospital of Rhode Island, The Alpert Medical School of Brown University, United States of America
| | - Yow-Pin Lim
- ProThera Biologics, Inc., Providence, RI, The Alpert Medical School of Brown University, Providence, RI, United States of America; Department of Pathology and Laboratory Medicine, The Alpert Medical School of Brown University, Providence, RI, United States of America
| | - Xiaodi Chen
- Department of Pediatrics, Women & Infants Hospital of Rhode Island, The Alpert Medical School of Brown University, United States of America.
| | - Barbara S Stonestreet
- Department of Pediatrics, Women & Infants Hospital of Rhode Island, The Alpert Medical School of Brown University, United States of America.
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14
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Tang M, Alaniz ME, Felsky D, Vardarajan B, Reyes-Dumeyer D, Lantigua R, Medrano M, Bennett DA, de Jager PL, Mayeux R, Santa-Maria I, Reitz C. Synonymous variants associated with Alzheimer disease in multiplex families. Neurol Genet 2020; 6:e450. [PMID: 32637632 PMCID: PMC7323483 DOI: 10.1212/nxg.0000000000000450] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Accepted: 05/05/2020] [Indexed: 01/15/2023]
Abstract
OBJECTIVE Synonymous variants can lead to disease; nevertheless, the majority of sequencing studies conducted in Alzheimer disease (AD) only assessed coding variation. METHODS To detect synonymous variants modulating AD risk, we conducted a whole-genome sequencing study on 67 Caribbean Hispanic (CH) families multiply affected by AD. Identified disease-associated variants were further assessed in an independent cohort of CHs, expression quantitative trait locus (eQTL) data, brain autopsy data, and functional experiments. RESULTS Rare synonymous variants in 4 genes (CDH23, SLC9A3R1, RHBDD2, and ITIH2) segregated with AD status in multiplex families and had a significantly higher frequency in these families compared with reference populations of similar ancestry. In comparison to subjects without dementia, expression of CDH23 (β = 0.53, p = 0.006) and SLC9A3R1 (β = 0.50, p = 0.02) was increased, and expression of RHBDD2 (β = -0.70, p = 0.02) decreased in individuals with AD at death. In line with this finding, increased expression of CDH23 (β = 0.26 ± 0.08, p = 4.9E-4) and decreased expression of RHBDD2 (β = -0.60 ± 0.12, p = 5.5E-7) were related to brain amyloid load (p = 0.0025). SLC9A3R1 expression was associated with burden of TDP43 pathology (β = 0.58 ± 0.17, p = 5.9E-4). Using eQTL data, the CDH23 variant was in linkage disequilibrium with variants modulating CDH23 expression levels (top single nucleotide polymorphism: rs11000035, p = 4.85E-6, D' = 1.0). Using minigene splicing assays, the CDH23 and SLC9A3R1 variants affected splicing efficiency. CONCLUSIONS These findings suggest that CDH23, SLC9A3R1, RHBDD2, and possibly ITIH2, which are involved in synaptic function, the glutamatergic system, and innate immunity, contribute to AD etiology. In addition, this study supports the notion that synonymous variants contribute to AD risk and that comprehensive scrutinization of this type of genetic variation is warranted and critical.
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Affiliation(s)
- Min Tang
- The Taub Institute for Research on Alzheimer's Disease and the Aging Brain (M.E.A., B.V., R.L., P.L.J., R.M., I.S.-M., C.R.); The Gertrude H. Sergievsky Center (M.T., D.R.-D., R.L., R.M., C.R.); Department of Neurology (P.L.J., R.M., C.R.); Department of Epidemiology (R.M., C.R.); Department of Psychiatry (R.M.), Columbia University, New York; Department of Pathology and Cell Biology (M.E.A., I.S.-M.), Columbia University, New York; Rush Alzheimer's Disease Center (D.A.B.); Department of Neurological Sciences (D.A.B.); Department of Pathology (D.A.B.), Rush University Medical Center, Chicago, IL; Center for Innovation in Brain Science , Departments of Pharmacology and Neurology , University of Arizona College of Medicine (M.T.), Tucson; Department of Medicine (R.L.), College of Physicians and Surgeons, Columbia University, New York, NY; School of Medicine (M.M.), Mother and Teacher Pontifical Catholic University, Santiago, Dominican Republic; and The Krembil Centre for Neuroinformatics (D.F.), Centre for Addiction and Mental Health, Toronto, Ontario, Canada
| | - Maria Eugenia Alaniz
- The Taub Institute for Research on Alzheimer's Disease and the Aging Brain (M.E.A., B.V., R.L., P.L.J., R.M., I.S.-M., C.R.); The Gertrude H. Sergievsky Center (M.T., D.R.-D., R.L., R.M., C.R.); Department of Neurology (P.L.J., R.M., C.R.); Department of Epidemiology (R.M., C.R.); Department of Psychiatry (R.M.), Columbia University, New York; Department of Pathology and Cell Biology (M.E.A., I.S.-M.), Columbia University, New York; Rush Alzheimer's Disease Center (D.A.B.); Department of Neurological Sciences (D.A.B.); Department of Pathology (D.A.B.), Rush University Medical Center, Chicago, IL; Center for Innovation in Brain Science , Departments of Pharmacology and Neurology , University of Arizona College of Medicine (M.T.), Tucson; Department of Medicine (R.L.), College of Physicians and Surgeons, Columbia University, New York, NY; School of Medicine (M.M.), Mother and Teacher Pontifical Catholic University, Santiago, Dominican Republic; and The Krembil Centre for Neuroinformatics (D.F.), Centre for Addiction and Mental Health, Toronto, Ontario, Canada
| | - Daniel Felsky
- The Taub Institute for Research on Alzheimer's Disease and the Aging Brain (M.E.A., B.V., R.L., P.L.J., R.M., I.S.-M., C.R.); The Gertrude H. Sergievsky Center (M.T., D.R.-D., R.L., R.M., C.R.); Department of Neurology (P.L.J., R.M., C.R.); Department of Epidemiology (R.M., C.R.); Department of Psychiatry (R.M.), Columbia University, New York; Department of Pathology and Cell Biology (M.E.A., I.S.-M.), Columbia University, New York; Rush Alzheimer's Disease Center (D.A.B.); Department of Neurological Sciences (D.A.B.); Department of Pathology (D.A.B.), Rush University Medical Center, Chicago, IL; Center for Innovation in Brain Science , Departments of Pharmacology and Neurology , University of Arizona College of Medicine (M.T.), Tucson; Department of Medicine (R.L.), College of Physicians and Surgeons, Columbia University, New York, NY; School of Medicine (M.M.), Mother and Teacher Pontifical Catholic University, Santiago, Dominican Republic; and The Krembil Centre for Neuroinformatics (D.F.), Centre for Addiction and Mental Health, Toronto, Ontario, Canada
| | - Badri Vardarajan
- The Taub Institute for Research on Alzheimer's Disease and the Aging Brain (M.E.A., B.V., R.L., P.L.J., R.M., I.S.-M., C.R.); The Gertrude H. Sergievsky Center (M.T., D.R.-D., R.L., R.M., C.R.); Department of Neurology (P.L.J., R.M., C.R.); Department of Epidemiology (R.M., C.R.); Department of Psychiatry (R.M.), Columbia University, New York; Department of Pathology and Cell Biology (M.E.A., I.S.-M.), Columbia University, New York; Rush Alzheimer's Disease Center (D.A.B.); Department of Neurological Sciences (D.A.B.); Department of Pathology (D.A.B.), Rush University Medical Center, Chicago, IL; Center for Innovation in Brain Science , Departments of Pharmacology and Neurology , University of Arizona College of Medicine (M.T.), Tucson; Department of Medicine (R.L.), College of Physicians and Surgeons, Columbia University, New York, NY; School of Medicine (M.M.), Mother and Teacher Pontifical Catholic University, Santiago, Dominican Republic; and The Krembil Centre for Neuroinformatics (D.F.), Centre for Addiction and Mental Health, Toronto, Ontario, Canada
| | - Dolly Reyes-Dumeyer
- The Taub Institute for Research on Alzheimer's Disease and the Aging Brain (M.E.A., B.V., R.L., P.L.J., R.M., I.S.-M., C.R.); The Gertrude H. Sergievsky Center (M.T., D.R.-D., R.L., R.M., C.R.); Department of Neurology (P.L.J., R.M., C.R.); Department of Epidemiology (R.M., C.R.); Department of Psychiatry (R.M.), Columbia University, New York; Department of Pathology and Cell Biology (M.E.A., I.S.-M.), Columbia University, New York; Rush Alzheimer's Disease Center (D.A.B.); Department of Neurological Sciences (D.A.B.); Department of Pathology (D.A.B.), Rush University Medical Center, Chicago, IL; Center for Innovation in Brain Science , Departments of Pharmacology and Neurology , University of Arizona College of Medicine (M.T.), Tucson; Department of Medicine (R.L.), College of Physicians and Surgeons, Columbia University, New York, NY; School of Medicine (M.M.), Mother and Teacher Pontifical Catholic University, Santiago, Dominican Republic; and The Krembil Centre for Neuroinformatics (D.F.), Centre for Addiction and Mental Health, Toronto, Ontario, Canada
| | - Rafael Lantigua
- The Taub Institute for Research on Alzheimer's Disease and the Aging Brain (M.E.A., B.V., R.L., P.L.J., R.M., I.S.-M., C.R.); The Gertrude H. Sergievsky Center (M.T., D.R.-D., R.L., R.M., C.R.); Department of Neurology (P.L.J., R.M., C.R.); Department of Epidemiology (R.M., C.R.); Department of Psychiatry (R.M.), Columbia University, New York; Department of Pathology and Cell Biology (M.E.A., I.S.-M.), Columbia University, New York; Rush Alzheimer's Disease Center (D.A.B.); Department of Neurological Sciences (D.A.B.); Department of Pathology (D.A.B.), Rush University Medical Center, Chicago, IL; Center for Innovation in Brain Science , Departments of Pharmacology and Neurology , University of Arizona College of Medicine (M.T.), Tucson; Department of Medicine (R.L.), College of Physicians and Surgeons, Columbia University, New York, NY; School of Medicine (M.M.), Mother and Teacher Pontifical Catholic University, Santiago, Dominican Republic; and The Krembil Centre for Neuroinformatics (D.F.), Centre for Addiction and Mental Health, Toronto, Ontario, Canada
| | - Martin Medrano
- The Taub Institute for Research on Alzheimer's Disease and the Aging Brain (M.E.A., B.V., R.L., P.L.J., R.M., I.S.-M., C.R.); The Gertrude H. Sergievsky Center (M.T., D.R.-D., R.L., R.M., C.R.); Department of Neurology (P.L.J., R.M., C.R.); Department of Epidemiology (R.M., C.R.); Department of Psychiatry (R.M.), Columbia University, New York; Department of Pathology and Cell Biology (M.E.A., I.S.-M.), Columbia University, New York; Rush Alzheimer's Disease Center (D.A.B.); Department of Neurological Sciences (D.A.B.); Department of Pathology (D.A.B.), Rush University Medical Center, Chicago, IL; Center for Innovation in Brain Science , Departments of Pharmacology and Neurology , University of Arizona College of Medicine (M.T.), Tucson; Department of Medicine (R.L.), College of Physicians and Surgeons, Columbia University, New York, NY; School of Medicine (M.M.), Mother and Teacher Pontifical Catholic University, Santiago, Dominican Republic; and The Krembil Centre for Neuroinformatics (D.F.), Centre for Addiction and Mental Health, Toronto, Ontario, Canada
| | - David A Bennett
- The Taub Institute for Research on Alzheimer's Disease and the Aging Brain (M.E.A., B.V., R.L., P.L.J., R.M., I.S.-M., C.R.); The Gertrude H. Sergievsky Center (M.T., D.R.-D., R.L., R.M., C.R.); Department of Neurology (P.L.J., R.M., C.R.); Department of Epidemiology (R.M., C.R.); Department of Psychiatry (R.M.), Columbia University, New York; Department of Pathology and Cell Biology (M.E.A., I.S.-M.), Columbia University, New York; Rush Alzheimer's Disease Center (D.A.B.); Department of Neurological Sciences (D.A.B.); Department of Pathology (D.A.B.), Rush University Medical Center, Chicago, IL; Center for Innovation in Brain Science , Departments of Pharmacology and Neurology , University of Arizona College of Medicine (M.T.), Tucson; Department of Medicine (R.L.), College of Physicians and Surgeons, Columbia University, New York, NY; School of Medicine (M.M.), Mother and Teacher Pontifical Catholic University, Santiago, Dominican Republic; and The Krembil Centre for Neuroinformatics (D.F.), Centre for Addiction and Mental Health, Toronto, Ontario, Canada
| | - Philip L de Jager
- The Taub Institute for Research on Alzheimer's Disease and the Aging Brain (M.E.A., B.V., R.L., P.L.J., R.M., I.S.-M., C.R.); The Gertrude H. Sergievsky Center (M.T., D.R.-D., R.L., R.M., C.R.); Department of Neurology (P.L.J., R.M., C.R.); Department of Epidemiology (R.M., C.R.); Department of Psychiatry (R.M.), Columbia University, New York; Department of Pathology and Cell Biology (M.E.A., I.S.-M.), Columbia University, New York; Rush Alzheimer's Disease Center (D.A.B.); Department of Neurological Sciences (D.A.B.); Department of Pathology (D.A.B.), Rush University Medical Center, Chicago, IL; Center for Innovation in Brain Science , Departments of Pharmacology and Neurology , University of Arizona College of Medicine (M.T.), Tucson; Department of Medicine (R.L.), College of Physicians and Surgeons, Columbia University, New York, NY; School of Medicine (M.M.), Mother and Teacher Pontifical Catholic University, Santiago, Dominican Republic; and The Krembil Centre for Neuroinformatics (D.F.), Centre for Addiction and Mental Health, Toronto, Ontario, Canada
| | - Richard Mayeux
- The Taub Institute for Research on Alzheimer's Disease and the Aging Brain (M.E.A., B.V., R.L., P.L.J., R.M., I.S.-M., C.R.); The Gertrude H. Sergievsky Center (M.T., D.R.-D., R.L., R.M., C.R.); Department of Neurology (P.L.J., R.M., C.R.); Department of Epidemiology (R.M., C.R.); Department of Psychiatry (R.M.), Columbia University, New York; Department of Pathology and Cell Biology (M.E.A., I.S.-M.), Columbia University, New York; Rush Alzheimer's Disease Center (D.A.B.); Department of Neurological Sciences (D.A.B.); Department of Pathology (D.A.B.), Rush University Medical Center, Chicago, IL; Center for Innovation in Brain Science , Departments of Pharmacology and Neurology , University of Arizona College of Medicine (M.T.), Tucson; Department of Medicine (R.L.), College of Physicians and Surgeons, Columbia University, New York, NY; School of Medicine (M.M.), Mother and Teacher Pontifical Catholic University, Santiago, Dominican Republic; and The Krembil Centre for Neuroinformatics (D.F.), Centre for Addiction and Mental Health, Toronto, Ontario, Canada
| | - Ismael Santa-Maria
- The Taub Institute for Research on Alzheimer's Disease and the Aging Brain (M.E.A., B.V., R.L., P.L.J., R.M., I.S.-M., C.R.); The Gertrude H. Sergievsky Center (M.T., D.R.-D., R.L., R.M., C.R.); Department of Neurology (P.L.J., R.M., C.R.); Department of Epidemiology (R.M., C.R.); Department of Psychiatry (R.M.), Columbia University, New York; Department of Pathology and Cell Biology (M.E.A., I.S.-M.), Columbia University, New York; Rush Alzheimer's Disease Center (D.A.B.); Department of Neurological Sciences (D.A.B.); Department of Pathology (D.A.B.), Rush University Medical Center, Chicago, IL; Center for Innovation in Brain Science , Departments of Pharmacology and Neurology , University of Arizona College of Medicine (M.T.), Tucson; Department of Medicine (R.L.), College of Physicians and Surgeons, Columbia University, New York, NY; School of Medicine (M.M.), Mother and Teacher Pontifical Catholic University, Santiago, Dominican Republic; and The Krembil Centre for Neuroinformatics (D.F.), Centre for Addiction and Mental Health, Toronto, Ontario, Canada
| | - Christiane Reitz
- The Taub Institute for Research on Alzheimer's Disease and the Aging Brain (M.E.A., B.V., R.L., P.L.J., R.M., I.S.-M., C.R.); The Gertrude H. Sergievsky Center (M.T., D.R.-D., R.L., R.M., C.R.); Department of Neurology (P.L.J., R.M., C.R.); Department of Epidemiology (R.M., C.R.); Department of Psychiatry (R.M.), Columbia University, New York; Department of Pathology and Cell Biology (M.E.A., I.S.-M.), Columbia University, New York; Rush Alzheimer's Disease Center (D.A.B.); Department of Neurological Sciences (D.A.B.); Department of Pathology (D.A.B.), Rush University Medical Center, Chicago, IL; Center for Innovation in Brain Science , Departments of Pharmacology and Neurology , University of Arizona College of Medicine (M.T.), Tucson; Department of Medicine (R.L.), College of Physicians and Surgeons, Columbia University, New York, NY; School of Medicine (M.M.), Mother and Teacher Pontifical Catholic University, Santiago, Dominican Republic; and The Krembil Centre for Neuroinformatics (D.F.), Centre for Addiction and Mental Health, Toronto, Ontario, Canada
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15
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Logsdon AF, Erickson MA, Chen X, Qiu J, Lim YP, Stonestreet BS, Banks WA. Inter-alpha inhibitor proteins attenuate lipopolysaccharide-induced blood-brain barrier disruption and downregulate circulating interleukin 6 in mice. J Cereb Blood Flow Metab 2020; 40:1090-1102. [PMID: 31234704 PMCID: PMC7181088 DOI: 10.1177/0271678x19859465] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 05/07/2019] [Accepted: 06/04/2019] [Indexed: 02/06/2023]
Abstract
Circulating levels of inter-alpha inhibitor proteins change dramatically in acute inflammatory disorders, which suggest an important contribution to the immunomodulatory system. Human blood-derived inter-alpha inhibitor proteins are neuroprotective and improve survival of neonatal mice exposed to lipopolysaccharide. Lipopolysaccharide augments inflammatory conditions and disrupts the blood-brain barrier. There is a paucity of therapeutic strategies to treat blood-brain barrier dysfunction, and the neuroprotective effects of human blood-derived inter-alpha inhibitor proteins are not fully understood. To examine the therapeutic potential of inter-alpha inhibitor proteins, we administered human blood-derived inter-alpha inhibitor proteins to male and female CD-1 mice after lipopolysaccharide exposure and quantified blood-brain barrier permeability of intravenously injected 14C-sucrose and 99mTc-albumin. We hypothesized that human blood-derived inter-alpha inhibitor protein treatment would attenuate lipopolysaccharide-induced blood-brain barrier disruption and associated inflammation. Lipopolysaccharide increased blood-brain barrier permeability to both 14C-sucrose and 99mTc-albumin, but human blood-derived inter-alpha inhibitor protein treatment only attenuated increases in 14C-sucrose blood-brain barrier permeability in male mice. Lipopolysaccharide stimulated a more robust elevation of male serum inter-alpha inhibitor protein concentration compared to the elevation measured in female serum. Lipopolysaccharide administration also increased multiple inflammatory factors in serum and brain tissue, including interleukin 6. Human blood-derived inter-alpha inhibitor protein treatment downregulated serum interleukin 6 levels, which were inversely correlated with serum inter-alpha inhibitor protein concentration. We conclude that inter-alpha inhibitor proteins may be neuroprotective through mechanisms of blood-brain barrier disruption associated with systemic inflammation.
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Affiliation(s)
- Aric F Logsdon
- Geriatric Research Education and Clinical Center, Veterans Affairs Puget Sound Health Care System, Seattle, WA, USA
- Division of Gerontology and Geriatric Medicine, Department of Medicine, University of Washington School of Medicine, Seattle, WA, USA
| | - Michelle A Erickson
- Geriatric Research Education and Clinical Center, Veterans Affairs Puget Sound Health Care System, Seattle, WA, USA
- Division of Gerontology and Geriatric Medicine, Department of Medicine, University of Washington School of Medicine, Seattle, WA, USA
| | - Xiaodi Chen
- Department of Pediatrics, Women & Infants Hospital of RI, The Alpert Medical School of Brown University, Providence, RI, USA
| | - Joseph Qiu
- ProThera Biologics, Inc., Providence, RI, USA
| | - Yow-Pin Lim
- ProThera Biologics, Inc., Providence, RI, USA
- Department of Pathology and Laboratory Medicine, The Alpert Medical School of Brown University, Providence, RI, USA
| | - Barbara S Stonestreet
- Department of Pediatrics, Women & Infants Hospital of RI, The Alpert Medical School of Brown University, Providence, RI, USA
| | - William A Banks
- Geriatric Research Education and Clinical Center, Veterans Affairs Puget Sound Health Care System, Seattle, WA, USA
- Division of Gerontology and Geriatric Medicine, Department of Medicine, University of Washington School of Medicine, Seattle, WA, USA
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Barrios-Anderson A, Chen X, Nakada S, Chen R, Lim YP, Stonestreet BS. Inter-alpha Inhibitor Proteins Modulate Neuroinflammatory Biomarkers After Hypoxia-Ischemia in Neonatal Rats. J Neuropathol Exp Neurol 2019; 78:742-755. [PMID: 31274164 PMCID: PMC6640908 DOI: 10.1093/jnen/nlz051] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 04/11/2019] [Accepted: 05/22/2019] [Indexed: 12/12/2022] Open
Abstract
Neuroinflammation contributes to hypoxic-ischemic (HI) brain injury. Inter-alpha inhibitor proteins (IAIPs) have important immunomodulatory properties. Human (h) plasma-derived IAIPs reduce brain injury and improve neurobehavioral outcomes after HI. However, the effects of hIAIPs on neuroinflammatory biomarkers after HI have not been examined. We determined whether hIAIPs attenuated HI-related neuroinflammation. Postnatal day-7 rats exposed to sham-placebo, or right carotid ligation and 8% oxygen for 90 minutes with placebo, and hIAIP treatment were studied. hIAIPs (30 mg/kg) or PL was injected intraperitoneally immediately, 24, and 48 hours after HI. Rat complete blood counts and sex were determined. Brain tissue and peripheral blood were prepared for analysis 72 hours after HI. The effects of hIAIPs on HI-induced neuroinflammation were quantified by image analysis of positively stained astrocytic (glial fibrillary acid protein [GFAP]), microglial (ionized calcium binding adaptor molecule-1 [Iba-1]), neutrophilic (myeloperoxidase [MPO]), matrix metalloproteinase-9 (MMP9), and MMP9-MPO cellular markers in brain regions. hIAIPs reduced quantities of cortical GFAP, hippocampal Iba-1-positive microglia, corpus callosum MPO, and cortical MMP9-MPO cells and the percent of neutrophils in peripheral blood after HI in male, but not female rats. hIAIPs modulate neuroinflammatory biomarkers in the neonatal brain after HI and may exhibit sex-related differential effects.
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Affiliation(s)
- Adriel Barrios-Anderson
- Department of Pediatrics, Women & Infants Hospital of Rhode Island
- Department of Pediatrics, The Warren Alpert Medical School of Brown University
| | - Xiaodi Chen
- Department of Pediatrics, Women & Infants Hospital of Rhode Island
- Department of Pediatrics, The Warren Alpert Medical School of Brown University
| | - Sakura Nakada
- Department of Pediatrics, Women & Infants Hospital of Rhode Island
- Department of Pediatrics, The Warren Alpert Medical School of Brown University
| | - Ray Chen
- Department of Pediatrics, Women & Infants Hospital of Rhode Island
- Department of Pediatrics, The Warren Alpert Medical School of Brown University
| | - Yow-Pin Lim
- ProThera Biologics, Inc
- Department of Pathology and Laboratory Medicine, The Alpert Medical School of Brown University, Providence, Rhode Island
| | - Barbara S Stonestreet
- Department of Pediatrics, Women & Infants Hospital of Rhode Island
- Department of Pediatrics, The Warren Alpert Medical School of Brown University
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17
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Chen X, Nakada S, Donahue JE, Chen RH, Tucker R, Qiu J, Lim YP, Stopa EG, Stonestreet BS. Neuroprotective effects of inter-alpha inhibitor proteins after hypoxic-ischemic brain injury in neonatal rats. Exp Neurol 2019; 317:244-259. [PMID: 30914159 DOI: 10.1016/j.expneurol.2019.03.013] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Revised: 03/08/2019] [Accepted: 03/22/2019] [Indexed: 11/30/2022]
Abstract
Hypoxic-ischemic (HI) brain injury is one of the most common neurological problems occurring in the perinatal period. Hypothermia is the only approved intervention for neonatal HI encephalopathy. However, this treatment is only partially protective, has a narrow therapeutic time window after birth and only can be used to treat full-term infants. Consequently, additional therapies are critically needed. Inflammation is an important contributing factor to the evolution of HI brain injury in neonates. Inter-alpha Inhibitor Proteins (IAIPs) are immunomodulatory proteins with anti-inflammatory properties. We have previously shown that IAIPs reduce neuronal cell death and improve behavioral outcomes when given after carotid artery ligation, but before hypoxia in male neonatal rats. The objective of the current study was to investigate the neuroprotective effects of treatment with IAIPs given immediately or 6 h after HI in both male and female neonatal rats. HI was induced with the Rice-Vannucci method in postnatal (P) day 7 rats. After ligation of the right common carotid artery, P7 rats were exposed to 90 min of hypoxia (8% oxygen). Human plasma-derived IAIPs or placebo (phosphate buffered saline) was given at zero, 24, and 48 h after HI. Brains were perfused, weighed and fixed 72 h after HI at P10. In a second, delayed treatment group, the same procedure was followed except that IAIPs or placebo were given at 6, 24 and 48 h after HI. Separate sham-operated, placebo-treated groups were exposed to identical protocols but were not exposed to carotid artery ligation and remained in room air. Rat sex was recorded. The effects of IAIPs on HI brain injury were examined using histopathological scoring and immunohistochemical analyses of the brain and by using infarct volume measurements on frozen tissue of the entire brain hemispheres ipsilateral and contralateral to HI injury. IAIPs given immediately after HI improved (P < 0.050) histopathological brain injury across and within the cingulate, caudate/putamen, thalamus, hippocampus and parietal cortex in males, but not in females. In contrast, IAIPs given immediately after HI reduced (P < 0.050) infarct volumes of the hemispheres ipsilateral to HI injury in similarly both the males and females. Treatment with IAIPs also resulted in higher (P < 0.050) brain weights compared with the placebo-treated HI group, reduced (P < 0.050) neuronal and non-neuronal cell death in the cortex and total hemisphere, and also increased the total area of oligodendrocytes determined by CNPase in the ipsilateral hemisphere and corpus callosum (P < 0.050) of male, but not female subjects exposed to HI. Delayed treatment with IAIPs 6 h after HI did not improve histopathological brain injury in males or females, but resulted in higher (P < 0.050) brain weights compared with the placebo-treated HI males. Therefore, treatment with IAIPs immediately after HI improved brain weights and reduced neuropathological brain injury and cell death in male rats, and reduced infarct volume in both male and female neonatal rats. We conclude that IAIPs exert neuroprotective effects after exposure to HI in neonatal rats and may exhibit some sex-related differential effects.
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Affiliation(s)
- Xiaodi Chen
- Department of Pediatrics, Women & Infants Hospital of Rhode Island, USA; The Warren Alpert Medical School of Brown University, USA
| | - Sakura Nakada
- Department of Pediatrics, Women & Infants Hospital of Rhode Island, USA; The Warren Alpert Medical School of Brown University, USA
| | - John E Donahue
- The Warren Alpert Medical School of Brown University, USA; Department of Pathology and Neurosurgery, Rhode Island Hospital, The Warren Alpert Medical School of Brown University, USA
| | - Ray H Chen
- Department of Pediatrics, Women & Infants Hospital of Rhode Island, USA; The Warren Alpert Medical School of Brown University, USA
| | - Richard Tucker
- Department of Pediatrics, Women & Infants Hospital of Rhode Island, USA
| | - Joseph Qiu
- ProThera Biologics, Inc, Providence, RI, USA
| | - Yow-Pin Lim
- The Warren Alpert Medical School of Brown University, USA; ProThera Biologics, Inc, Providence, RI, USA; Department of Pathology and Laboratory Medicine, The Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Edward G Stopa
- The Warren Alpert Medical School of Brown University, USA; Department of Pathology and Neurosurgery, Rhode Island Hospital, The Warren Alpert Medical School of Brown University, USA
| | - Barbara S Stonestreet
- Department of Pediatrics, Women & Infants Hospital of Rhode Island, USA; The Warren Alpert Medical School of Brown University, USA.
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18
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Goulding DR, Nikolova VD, Mishra L, Zhuo L, Kimata K, McBride SJ, Moy SS, Harry GJ, Garantziotis S. Inter-α-inhibitor deficiency in the mouse is associated with alterations in anxiety-like behavior, exploration and social approach. GENES, BRAIN, AND BEHAVIOR 2019; 18:e12505. [PMID: 29987918 PMCID: PMC6328341 DOI: 10.1111/gbb.12505] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Revised: 06/26/2018] [Accepted: 07/06/2018] [Indexed: 12/30/2022]
Abstract
In recent years, several genome-wide association studies have identified candidate regions for genetic susceptibility in major mood disorders. Most notable are regions in a locus in chromosome 3p21, encompassing the genes NEK4-ITIH1-ITIH3-ITIH4. Three of these genes represent heavy chains of the composite protein inter-α-inhibitor (IαI). In order to further establish associations of these genes with mood disorders, we evaluated behavioral phenotypes in mice deficient in either Ambp/bikunin, which is necessary for functional ITIH1 and ITIH3 complexes, or in Itih4, the gene encoding the heavy chain Itih4. We found that loss of Itih4 had no effect on the behaviors tested, but loss of Ambp/bikunin led to increased anxiety-like behavior in the light/dark and open field tests and reduced exploratory activity in the elevated plus maze, light/dark preference and open field tests. Ambp/bikunin knockout mice also exhibited a sex-dependent exaggeration of acoustic startle responses, alterations in social approach during a three-chamber choice test, and an elevated fear conditioning response. These results provide experimental support for the role of ITIH1/ITIH3 in the development of mood disorders.
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Affiliation(s)
- David R Goulding
- Comparative Medicine Branch, Division of Intramural Research, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina
| | - Viktoriya D Nikolova
- Carolina Institute for Developmental Disabilities and Department of Psychiatry, University of North Carolina School of Medicine, Chapel Hill, North Carolina
| | - Lopa Mishra
- Center for Translational Medicine, Department of Surgery, Georgetown University, Washington, District of Columbia
| | - Lisheng Zhuo
- Multidisciplinary Pain Center and the Research Creation Support Center, Aichi Medical University, Nagakute, Japan
| | - Koji Kimata
- Multidisciplinary Pain Center and the Research Creation Support Center, Aichi Medical University, Nagakute, Japan
| | | | - Sheryl S Moy
- Carolina Institute for Developmental Disabilities and Department of Psychiatry, University of North Carolina School of Medicine, Chapel Hill, North Carolina
| | - G J Harry
- Neurotoxicology Group, National Toxicology Program Laboratory, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina
| | - Stavros Garantziotis
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina
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19
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Chen X, Zhang J, Kim B, Jaitpal S, Meng SS, Adjepong K, Imamura S, Wake H, Nishibori M, Stopa EG, Stonestreet BS. High-mobility group box-1 translocation and release after hypoxic ischemic brain injury in neonatal rats. Exp Neurol 2019; 311:1-14. [PMID: 30217406 PMCID: PMC6261802 DOI: 10.1016/j.expneurol.2018.09.007] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 07/13/2018] [Accepted: 09/10/2018] [Indexed: 01/17/2023]
Abstract
Inflammation contributes to neonatal brain injury. Pro-inflammatory cytokines represent key inflammatory meditators in neonatal hypoxic-ischemic (HI) brain injury. The high mobility group box-1 (HMGB1) protein is a nuclear protein with pro-inflammatory cytokine properties when it is translocated from the nucleus and released extracellularly after stroke in adult rodents. We have previously shown that HMGB1 is translocated from the nucleus to cytosolic compartment after ischemic brain injury in fetal sheep. In the current study, we utilized the Rice-Vannucci model to investigate the time course of HMGB1 translocation and release after HI injury in neonatal rats. HMGB1 was located in cellular nuclei of brains from sham control rats. Nuclear to cytoplasmic translocation of HMGB1 was detected in the ipsilateral-HI hemisphere as early as zero h after HI, and released extracellularly as early as 6 h after HI. Immunohistochemical double staining detected HMGB1 translocation mainly in neurons along with release from apoptotic cells after HI. Serum HMGB1 increased at 3 h and decreased by 24 h after HI. In addition, rat brains exposed to hypoxic injury alone also exhibited time dependent HMGB1 translocation at 3, 12 and 48 h after hypoxia. Consequently, HMGB1 responds similarly after HI injury in the brains of neonatal and adult subjects. We conclude that HMGB1 is sensitive early indicator of neonatal HI and hypoxic brain injury.
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Affiliation(s)
- Xiaodi Chen
- Department of Pediatrics, Women & Infants Hospital of Rhode Island, The Alpert Medical School of Brown University, Providence, RI, USA
| | - Jiyong Zhang
- Department of Pediatrics, Women & Infants Hospital of Rhode Island, The Alpert Medical School of Brown University, Providence, RI, USA
| | - Boram Kim
- Department of Pediatrics, Women & Infants Hospital of Rhode Island, The Alpert Medical School of Brown University, Providence, RI, USA
| | - Siddhant Jaitpal
- Department of Pediatrics, Women & Infants Hospital of Rhode Island, The Alpert Medical School of Brown University, Providence, RI, USA
| | - Steven S Meng
- Department of Pediatrics, Women & Infants Hospital of Rhode Island, The Alpert Medical School of Brown University, Providence, RI, USA
| | - Kwame Adjepong
- Department of Pediatrics, Women & Infants Hospital of Rhode Island, The Alpert Medical School of Brown University, Providence, RI, USA
| | - Sayumi Imamura
- Department of Pediatrics, Women & Infants Hospital of Rhode Island, The Alpert Medical School of Brown University, Providence, RI, USA
| | - Hidenori Wake
- Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Masahiro Nishibori
- Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Edward G Stopa
- Department of Pathology and Neurosurgery, The Alpert Medical School of Brown University, Rhode Island Hospital, Providence, RI, USA
| | - Barbara S Stonestreet
- Department of Pediatrics, Women & Infants Hospital of Rhode Island, The Alpert Medical School of Brown University, Providence, RI, USA.
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20
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Disdier C, Zhang J, Fukunaga Y, Lim YP, Qiu J, Santoso A, Stonestreet BS. Alterations in inter-alpha inhibitor protein expression after hypoxic-ischemic brain injury in neonatal rats. Int J Dev Neurosci 2018; 65:54-60. [PMID: 29079121 PMCID: PMC5837925 DOI: 10.1016/j.ijdevneu.2017.10.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Revised: 09/19/2017] [Accepted: 10/23/2017] [Indexed: 01/19/2023] Open
Abstract
Hypoxic-ischemic (HI) brain injury is frequently associated with premature and/or full-term birth-related complications that reflect widespread damage to cerebral cortical structures. Inflammation has been implicated in the long-term evolution and severity of HI brain injury. Inter-Alpha Inhibitor Proteins (IAIPs) are immune modulator proteins that are reduced in systemic neonatal inflammatory states. We have shown that endogenous IAIPs are present in neurons, astrocytes and microglia and that exogenous treatment with human plasma purified IAIPs decreases neuronal injury and improves behavioral outcomes in neonatal rats with HI brain injury. In addition, we have shown that endogenous IAIPs are reduced in the brain of the ovine fetus shortly after ischemic injury. However, the effect of HI on changes in circulating and endogenous brain IAIPs has not been examined in neonatal rats. In the current study, we examined changes in endogenous IAIPs in the systemic circulation and brain of neonatal rats after exposure to HI brain injury. Postnatal day 7 rats were exposed to right carotid artery ligation and 8% oxygen for 2h. Sera were obtained immediately, 3, 12, 24, and 48h and brains 3 and 24h after HI. IAIPs levels were determined by a competitive enzyme-linked immunosorbent assay (ELISA) in sera and by Western immunoblots in cerebral cortices. Serum IAIPs were decreased 3h after HI and remained lower than in non-ischemic rats up to 7days after HI. IAIP expression increased in the ipsilateral cerebral cortices 24h after HI brain injury and in the hypoxic contralateral cortices. However, 3h after hypoxia alone the 250kDa IAIP moiety was reduced in the contralateral cortices. We speculate that changes in endogenous IAIPs levels in blood and brain represent constituents of endogenous anti-inflammatory neuroprotective mechanism(s) after HI in neonatal rats.
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Affiliation(s)
- Clémence Disdier
- Department of Pediatrics, Women & Infants Hospital of Rhode Island, The Alpert Medical School of Brown University, Providence, RI 02905, USA
| | - Jiyong Zhang
- Department of Pediatrics, Women & Infants Hospital of Rhode Island, The Alpert Medical School of Brown University, Providence, RI 02905, USA
| | - Yuki Fukunaga
- Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University, Okayama 7008558, Japan
| | - Yow-Pin Lim
- ProThera Biologics, Inc., Providence, RI 02903, USA
| | - Joseph Qiu
- ProThera Biologics, Inc., Providence, RI 02903, USA
| | | | - Barbara S Stonestreet
- Department of Pediatrics, Women & Infants Hospital of Rhode Island, The Alpert Medical School of Brown University, Providence, RI 02905, USA.
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21
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Threlkeld SW, Lim YP, La Rue M, Gaudet C, Stonestreet BS. Immuno-modulator inter-alpha inhibitor proteins ameliorate complex auditory processing deficits in rats with neonatal hypoxic-ischemic brain injury. Brain Behav Immun 2017; 64:173-179. [PMID: 28286301 PMCID: PMC5482760 DOI: 10.1016/j.bbi.2017.03.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Revised: 03/08/2017] [Accepted: 03/08/2017] [Indexed: 10/20/2022] Open
Abstract
Hypoxic-ischemic (HI) brain injury is recognized as a significant problem in the perinatal period, contributing to life-long language-learning and other cognitive impairments. Central auditory processing deficits are common in infants with hypoxic-ischemic encephalopathy and have been shown to predict language learning deficits in other at risk infant populations. Inter-alpha inhibitor proteins (IAIPs) are a family of structurally related plasma proteins that modulate the systemic inflammatory response to infection and have been shown to attenuate cell death and improve learning outcomes after neonatal brain injury in rats. Here, we show that systemic administration of IAIPs during the early HI injury cascade ameliorates complex auditory discrimination deficits as compared to untreated HI injured subjects, despite reductions in brain weight. These findings have significant clinical implications for improving central auditory processing deficits linked to language learning in neonates with HI related brain injury.
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Affiliation(s)
- Steven W. Threlkeld
- Department of Neuroscience, Regis College, 235 Wellesley street, Weston MA, 02493, USA
| | - Yow-Pin Lim
- ProThera Biologics, Inc., Providence, RI 02903, USA,Department of Pathology and Laboratory Medicine, The Alpert Medical School of Brown University, Providence, RI 02912, USA
| | - Molly La Rue
- Departments of Psychology and Biology, Rhode Island College, 600 Mount Pleasant Ave. Providence, RI, 02904, USA
| | - Cynthia Gaudet
- Departments of Psychology and Biology, Rhode Island College, 600 Mount Pleasant Ave. Providence, RI, 02904, USA
| | - Barbara S. Stonestreet
- Department of Pediatrics, The Alpert Medical School of Brown University, Women & Infants Hospital of Rhode Island, 101 Dudley Street, Providence, RI 02905, USA
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22
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Spasova MS, Chen X, Sadowska GB, Horton ER, Lim YP, Stonestreet BS. Ischemia reduces inter-alpha inhibitor proteins in the brain of the ovine fetus. Dev Neurobiol 2016; 77:726-737. [PMID: 27618403 DOI: 10.1002/dneu.22451] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Revised: 09/02/2016] [Accepted: 09/08/2016] [Indexed: 01/04/2023]
Abstract
Hypoxic-ischemic (HI) brain injury is a major cause of neurological abnormalities in the perinatal period. Inflammation contributes to the evolution of HI brain injury. Inter-alpha inhibitor proteins (IAIPs) are a family of proteins that are part of the innate immune system. We have reported that endogenous IAIPs exhibit developmental changes in ovine brain and that exogenous IAIP treatment reduces neuronal death in HI neonatal rats. However, the effects of HI on endogenous IAIPs in brain have not been previously examined. In this study, we examined the effects of ischemia-reperfusion on endogenous IAIPs levels in fetal sheep brain. Cerebral cortex, cerebellum, cervical spinal cord, choroid plexus, and CSF were snap frozen from sham control fetuses at 127 days gestation and after 30-min of carotid occlusion and 4-, 24-, and 48-h of reperfusion. IAIP levels were determined by Western immunoblot. IAIP expressions of the 250 kDa Inter-alpha inhibitor (IaI) and 125 kDa Pre-alpha inhibitor (PaI) in cerebral cortex and PaI in cerebellum were reduced (p < 0.05) 4-h after ischemia compared with controls and returned toward control levels 24- and 48-h after ischemia. CSF PaI and IaI were reduced 48 h after ischemia. We conclude that IAIPs in cerebral cortex and cerebellum are reduced by brain ischemia, and return toward control levels between 24 and 48 h after ischemia. However, changes in CSF IAIPs were delayed, exhibiting decreases 48 h after ischemia. We speculate that the decreases in endogenous IAIPs reflect increased utilization, potentially suggesting that they have endogenous neuroprotective properties. © 2016 Wiley Periodicals, Inc. Develop Neurobiol 77: 726-737, 2017.
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Affiliation(s)
- Mariya S Spasova
- Department of Pediatrics, the Alpert Medical School of Brown University, Women & Infants Hospital of Rhode Island, Providence, RI, 02905
| | - Xiaodi Chen
- Department of Pediatrics, the Alpert Medical School of Brown University, Women & Infants Hospital of Rhode Island, Providence, RI, 02905
| | - Grazyna B Sadowska
- Department of Pediatrics, the Alpert Medical School of Brown University, Women & Infants Hospital of Rhode Island, Providence, RI, 02905
| | - Edward R Horton
- Department of Pediatrics, the Alpert Medical School of Brown University, Women & Infants Hospital of Rhode Island, Providence, RI, 02905
| | - Yow-Pin Lim
- ProThera Biologics, Inc, Providence, RI, 02903
| | - Barbara S Stonestreet
- Department of Pediatrics, the Alpert Medical School of Brown University, Women & Infants Hospital of Rhode Island, Providence, RI, 02905
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23
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Expression and localization of Inter-alpha Inhibitors in rodent brain. Neuroscience 2016; 324:69-81. [PMID: 26964679 DOI: 10.1016/j.neuroscience.2016.03.009] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Revised: 03/02/2016] [Accepted: 03/04/2016] [Indexed: 11/20/2022]
Abstract
Inter-alpha Inhibitor Proteins (IAIPs) are a family of related serine protease inhibitors. IAIPs are important components of the systemic innate immune system. We have identified endogenous IAIPs in the central nervous system (CNS) of sheep during development and shown that treatment with IAIPs reduces neuronal cell death and improves behavioral outcomes in neonatal rats after hypoxic-ischemic brain injury. The presence of IAIPs in CNS along with their exogenous neuroprotective properties suggests that endogenous IAIPs could be part of the innate immune system in CNS. The purpose of this study was to characterize expression and localization of IAIPs in CNS. We examined cellular expressions of IAIPs in vitro in cultured cortical mouse neurons, in cultured rat neurons, microglia, and astrocytes, and in vivo on brain sections by immunohistochemistry from embryonic (E) day 18 mice and postnatal (P) day 10 rats. Cultured cortical mouse neurons expressed the light chain gene Ambp and heavy chain genes Itih-1, 2, 3, 4, and 5 mRNA transcripts and IAIP proteins. IAIP proteins were detected by immunohistochemistry in cultured cells as well as brain sections from E18 mice and P10 rats. Immunoreactivity was found in neurons, microglia, astrocytes and oligodendroglia in multiple brain regions including cortex and hippocampus, as well as within both the ependyma and choroid plexus. Our findings suggest that IAIPs are endogenous proteins expressed in a wide variety of cell types and regions both in vitro and in vivo in rodent CNS. We speculate that endogenous IAIPs may represent endogenous neuroprotective immunomodulatory proteins within the CNS.
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24
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Gaudet CM, Lim YP, Stonestreet BS, Threlkeld SW. Effects of age, experience and inter-alpha inhibitor proteins on working memory and neuronal plasticity after neonatal hypoxia-ischemia. Behav Brain Res 2016; 302:88-99. [PMID: 26778784 DOI: 10.1016/j.bbr.2016.01.016] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2015] [Revised: 12/23/2015] [Accepted: 01/05/2016] [Indexed: 01/15/2023]
Abstract
Neonatal cerebral hypoxia-ischemia (HI) commonly results in cognitive and sensory impairments. Early behavioral experience has been suggested to improve cognitive and sensory outcomes in children and animal models with perinatal neuropathology. In parallel, we previously showed that treatment with immunomodulator Inter-alpha Inhibitor Proteins (IAIPs) improves cellular and behavioral outcomes in neonatal HI injured rats. The purpose of the current study was to evaluate the influences of early experience and typical maturation in combination with IAIPs treatment on spatial working and reference memory after neonatal HI injury. A second aim was to determine the effects of these variables on hippocampal CA1 neuronal morphology. Subjects were divided into two groups that differed with respect to the time when exposed to eight arm radial water maze testing: Group one was tested as juveniles (early experience, Postnatal day (P) 36-61) and adults (P88-113), and Group two was tested in adulthood only (P88-113; without early experience). Three treatment conditions were included in each experience group (HI+Vehicle, HI+IAIPs, and Sham subjects). Incorrect arm entries (errors) were compared between treatment and experience groups across three error types (reference memory (RM), working memory incorrect (WMI), working memory correct (WMC)). Early experience led to improved working memory performance regardless of treatment. Combining IAIPs intervention with early experience provided a long-term behavioral advantage on the WMI component of the task in HI animals. Anatomically, early experience led to a decrease in the average number of basal dendrites per CA1 pyramidal neuron for IAIP treated subjects and a significant reduction in basal dendritic length in control subjects, highlighting the importance of pruning in typical early life learning. Our results support the hypothesis that early behavioral experience combined with IAIPs improve outcome on a relativity demanding cognitive task, beyond that of a single intervention strategy, and appears to facilitate neuronal plasticity following neonatal brain injury.
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Affiliation(s)
- Cynthia M Gaudet
- Department of Biology, Rhode Island College, 600 Mount Pleasant Ave., Providence, RI 02904, USA
| | - Yow-Pin Lim
- ProThera Biologics, Inc., 349 Eddy Street, Providence, RI 02903, USA
| | - Barbara S Stonestreet
- Department of Pediatrics, The Alpert Medical School of Brown University, Women & Infants Hospital of Rhode Island, 101 Dudley Street, Providence, RI 02905, USA
| | - Steven W Threlkeld
- Department of Psychology, Rhode Island College, 600 Mount Pleasant Ave. Providence, RI 02904, USA.
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25
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Affiliation(s)
- William A Banks
- Geriatric Research Education and Clinical Center, Veterans Affairs Puget Sound Health Care System, Seattle, Washington; and Division of Gerontology and Geriatric Medicine, Department of Medicine, University of Washington School of Medicine, Seattle, Washington 98108
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