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Xiong M, Wu Z, Zhao Y, Zhao D, Pan Z, Wu X, Liu W, Hu K. Intermittent hypoxia exacerbated depressive and anxiety-like behaviors in the bleomycin-induced pulmonary fibrosis mice. Brain Res Bull 2023; 198:55-64. [PMID: 37094614 DOI: 10.1016/j.brainresbull.2023.04.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 03/29/2023] [Accepted: 04/21/2023] [Indexed: 04/26/2023]
Abstract
Depression and anxiety are prevalent in patients with idiopathic pulmonary fibrosis (IPF). Recent researchers reveal that intermittent hypoxia (IH) increases the severity of bleomycin (BLM)-induced lung injury. However, experimental studies dealing with anxiety- and depression-like behavior in animal models of BLM-induced pulmonary fibrosis in a combination of IH are lacking, hence, this study aimed to investigate that. In this study, 80 C57BL/6J male mice were intratracheally injected with BLM or normal saline at day0 and then exposed to IH (alternating cycles of FiO2 21% for 60s and FiO2 10% for 30s, 40 cycles/hour, 8hours/day) or intermittent air (IA) for 21 days. Behavioral tests, including open field test (OFT), sucrose preference test (SPT) and tail suspension test (TST), were detected from day22 to day26. This study found that pulmonary fibrosis developed and lung inflammation were activated in BLM-induced mice, which were potentiated by IH. Significant less time in center and less frequency of entries in the centre arena in OFT were observed in BLM treated mice, and IH exposure further decreased that. Marked decreased percent of sucrose preference in SPT, and significant increased immobility time of the TST were detected in BLM treated mice and IH widen the gaps. The expression of ionized calcium-binding adaptor molecule (Iba1) was activated in the hippocampus of BLM instillation mice and IH enlarged it. Moreover, a positive correlation between hippocampal microglia activation and inflammatory factors was observed. Our results demonstrated that IH exacerbated depressive and anxiety-like behaviors in the BLM-induced pulmonary fibrosis mice. The changes in pulmonary inflammation-hippocampal microglia activation may be a potential mechanism in this phenomenon, which can be researched in future.
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Affiliation(s)
- Mengqing Xiong
- Department of Respiratory and Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan 430060, China.
| | - Zuotian Wu
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
| | - Yang Zhao
- Department of Respiratory and Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan 430060, China.
| | - Dong Zhao
- Department of Respiratory and Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan 430060, China.
| | - Zhou Pan
- Department of Respiratory and Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan 430060, China.
| | - Xiaofeng Wu
- Department of Respiratory and Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan 430060, China.
| | - Wei Liu
- Department of Respiratory and Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan 430060, China.
| | - Ke Hu
- Department of Respiratory and Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan 430060, China.
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Tunicamycin induces depression-like behaviors in male rats, accompanied by initiated chaperon-mediated autophagy and decreased synaptic protein expression in the hippocampus. Neurosci Lett 2023; 798:137058. [PMID: 36623760 DOI: 10.1016/j.neulet.2023.137058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 01/03/2023] [Accepted: 01/05/2023] [Indexed: 01/08/2023]
Abstract
BACKGROUND AND AIM Endoplasmic reticulum (ER) stress participates in the occurrence and development of depression, but the underlying mechanism is not fully understood. This study aimed to investigate the behavioral performance and intracerebral molecular changes in an ER stress model of male rats. METHODS Intrahippocampal injection of tunicamycin (TM) was performed on male rats as a model of ER stress. The body weight was determined, and behavioral tests, including sucrose preference test (SPT), open field test (OFT), and forced swimming test (FST), were performed to evaluate depressive and anxiety-like phenotypes within 8 days after injection. The levels of chaperone-mediated autophagy (CMA), synaptic proteins, and neuroinflammation related factors in this model were measured via real-time quantitative PCR and Western blot analysis. RESULTS Intrahippocampal injection of TM (2 or 1 μg) induced depression-like behaviors in rats, as indicated by the reduced body weight, sucrose preference in SPT, central time in OFT, and increased immobility time in FST. The mRNA and protein levels of GRP78, ATF4, CHOP, LAMP2A, IL-1β, IL-6, and TNF-α were significantly increased, while the expressions of MEF2D, PSD95, SYN, p-CREB (Ser133), and BDNF were significantly decreased in the hippocampus in the model group compared with the sham group. CONCLUSIONS These results confirmed that intrahippocampal injection of TM was a valid method to induce an ER stress rat model with depression-like behaviors accompanied by decreased synaptic protein expression and neuroinflammation. The alteration in CMA-related proteins in this ER stress depression model indicated the involvement of CMA in the development of depression.
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Brief Maternal Separation Promotes Resilience to Anxiety-like and Depressive-like Behaviors in Female C57BL/6J Offspring with Imiquimod-Induced Psoriasis. Brain Sci 2022; 12:brainsci12091250. [PMID: 36138986 PMCID: PMC9497052 DOI: 10.3390/brainsci12091250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 09/05/2022] [Accepted: 09/09/2022] [Indexed: 11/18/2022] Open
Abstract
Background: Psoriasis is a common chronic inflammatory skin disease that often causes depression. Early life experience affects brain development and relates to depression. Whether the effect of different MS protocols in early life on anxiety-like and depressive-like behaviors in female offspring with imiquimod (IMQ)-induced psoriasis is unknown. Methods: C57BL/6J mice were subjected to no separation (NMS), brief MS (15 min/day, MS15) or long MS (180 min/day, MS180) from postpartum days (PPD) 1 to PPD21. Then, 5% imiquimod cream was applied for 8 days in adults. Behavioral tests, skin lesions and hippocampal protein expression were also assessed. Results: We found significant psoriasis-like skin lesions in female mice following IMQ application, and mice showed anxiety-like and depressive-like behaviors. Further, increased microglial activation and decreased expression of neuroplasticity were detected in mice following IMQ application. However, after MS15 in early life, mice showed decreased anxiety-like and depressive-like behaviors, indicating resilience. Further, inhibited hippocampal neuroinflammation and increased neuroplasticity were detected. Conclusions: Collectively, this study confirms that brief MS confers resilience to the behavior deficits in female offspring with IMQ-induced psoriasis and reverses the activation of neuroinflammation and the damage of neuroplasticity injury.
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Zhang C, Zhu L, Lu S, Li M, Bai M, Li Y, Xu E. The antidepressant-like effect of formononetin on chronic corticosterone-treated mice. Brain Res 2022; 1783:147844. [PMID: 35218705 DOI: 10.1016/j.brainres.2022.147844] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 01/19/2022] [Accepted: 02/21/2022] [Indexed: 12/14/2022]
Abstract
Previous studies reported the neuroprotective effects of formononetin (FMN), however, whether it has antidepressant-like effects have not been reported. To evaluate the antidepressant-like effects of FMN, a mice model of depression was established by chronic corticosterone (CORT) injection. The serum corticosterone levels and hippocampal protein expression were detected by ELISA and Western blot. Nissl staining was used to observe the damage of hippocampal neurons and immunofluorescence was used to observe the neurogenesis in the hippocampus. Our results showed that FMN significantly increased the sucrose preference and shorten the immobility time in the forced swimming test in CORT-treated mice. Moreover, FMN reduced the serum corticosterone levels, upregulated the protein expression levels of the glucocorticoid receptor (GR), and brain-derived neurotrophic factor (BDNF) in the hippocampus, protected against the CORT-induced neuronal impairment, and promoted the neurogenesis in the hippocampus. Taken together, the present study was the first to demonstrate the antidepressant-like effects of FMN in the CORT-induced mice model of depression, which may contribute to the discovery of a new candidate for treating depression.
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Affiliation(s)
- Changjing Zhang
- Henan Key Laboratory for Modern Research on Zhongjing's Herbal Formulae, Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou 450046, PR China; College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, PR China.
| | - Leilei Zhu
- Henan Key Laboratory for Modern Research on Zhongjing's Herbal Formulae, Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou 450046, PR China; College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, PR China.
| | - Shuaifei Lu
- Henan Key Laboratory for Modern Research on Zhongjing's Herbal Formulae, Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou 450046, PR China; College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, PR China.
| | - Mengyuan Li
- Henan Key Laboratory for Modern Research on Zhongjing's Herbal Formulae, Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou 450046, PR China; College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, PR China.
| | - Ming Bai
- Henan Key Laboratory for Modern Research on Zhongjing's Herbal Formulae, Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou 450046, PR China.
| | - Yucheng Li
- Henan Key Laboratory for Modern Research on Zhongjing's Herbal Formulae, Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou 450046, PR China.
| | - Erping Xu
- Henan Key Laboratory for Modern Research on Zhongjing's Herbal Formulae, Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou 450046, PR China.
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Wei Y, Wang G, Chen J, Xiao L, Wu Z, He J, Zhang N. Maternal deprivation induces cytoskeletal alterations and depressive-like behavior in adult male rats by regulating the AKT/GSK3β/CRMP2 signaling pathway. Physiol Behav 2021; 242:113625. [PMID: 34666114 DOI: 10.1016/j.physbeh.2021.113625] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 08/21/2021] [Accepted: 10/13/2021] [Indexed: 12/25/2022]
Abstract
Early-life adverse events exert persistent effects on brain functions and may increase the risk of psychopathology in adulthood. However, the underlying mechanism remains unclear. The purpose of our study was to study the long-lasting effects of maternal deprivation (MD) on depression-related behaviors and microtubule dynamics, and to illuminate the underlying molecular mechanism. Rat pups were separated from the dams for 360 min (MD) or 15 min (brief maternal separation) each day from postnatal day 4 through 10. Rats with MD experience showed significant depressive-like behaviors in adulthood, while brief maternal separation did not alter the behaviors. Behavioral alterations in the MD group were accompanied by alterations in the AKT/GSK3β/CRMP2 signaling pathway and hyperphosphorylation of CRMP2. CRMP2 interacted and colocalized with the cytoskeleton in the hippocampus, and the overlap of CRMP2 and tubulin staining in the hippocampus of MD rats was decreased. In MD rats, the expression of the α-tubulin isoforms Acet-tubulin and Tyr-tubulin changed, and the ratio of Tyr/Acet-tubulin, which is an important marker of microtubule dynamics, was decreased, indicating decreased microtubule dynamics. Furthermore, regulation of the AKT/GSK3β/CRMP2 signaling pathway by an LY294002 microinjection in the hippocampus resulted in cytoskeletal alterations and depressive-like behaviors in rats. These findings suggest that early-life MD induces depressive-like behaviors and cytoskeletal alterations in adult male rats and that the effects may be partly mediated by the AKT/GSK3β/CRMP2 signaling pathway. An understanding of the mechanism underlying the effect of MD on behaviors is crucial for developing pharmacological and psychological interventions for childhood neglect.
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Affiliation(s)
- Yanyan Wei
- Beijing Hui-Long-Guan Hospital, Peking University, Beijing, 100096, China
| | - Gaohua Wang
- Department of Psychiatry, Renmin Hospital of Wuhan University, Jiefang Road 238#, Wuhan 430060, Hubei, PR China.
| | - Jingxu Chen
- Beijing Hui-Long-Guan Hospital, Peking University, Beijing, 100096, China
| | - Ling Xiao
- Department of Psychiatry, Renmin Hospital of Wuhan University, Jiefang Road 238#, Wuhan 430060, Hubei, PR China
| | - Zuotian Wu
- Department of Psychiatry, Renmin Hospital of Wuhan University, Jiefang Road 238#, Wuhan 430060, Hubei, PR China
| | - Jing He
- Department of Psychiatry, Renmin Hospital of Wuhan University, Jiefang Road 238#, Wuhan 430060, Hubei, PR China
| | - Nan Zhang
- Department of Psychiatry, Renmin Hospital of Wuhan University, Jiefang Road 238#, Wuhan 430060, Hubei, PR China
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Sun L, Wang G, Wu Z, Xie Y, Zhou L, Xiao L, Wang H. Swimming exercise reduces the vulnerability to stress and contributes to the AKT/GSK3β/CRMP2 pathway and microtubule dynamics mediated protective effects on neuroplasticity in male C57BL/6 mice. Pharmacol Biochem Behav 2021; 211:173285. [PMID: 34626621 DOI: 10.1016/j.pbb.2021.173285] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 09/30/2021] [Accepted: 10/01/2021] [Indexed: 11/25/2022]
Abstract
While swimming exercise has been shown to positively affect the development of the nervous system, it still remains unclear whether it reduces the vulnerability to stress. In this study, male C57BL/6 mice were exposed to swimming training for 5 weeks, and then subjected to chronic unpredictable mild stress (CUMS) for 4 weeks. We found that swimming exercise prevented anxiety-like and depressive phenotypes induced by CUMS, including increased anxiety-like behavior in the open field test (OFT) and elevated plus-maze (EPM) test and increased despair behavior in the tail suspension test (TST). Moreover, the control+stress group showed reduced expression of phosphorylated AKT kinase (p-AKT), phosphorylated glycogen synthase kinase-3β (p-GSK3β), and tubulin-tyrosine ligase (Tyr-tubulin) and increased protein expression of phosphorylated collapsin response mediator protein 2 (p-CRMP-2); the control+control, swim+control, and swim+stress groups exhibited higher expression of these proteins than the control+stress group. This study confirmed that swimming exercise could reduce the vulnerability of individuals to stress and that it contributes to the AKT/GSK-3β/CRMP-2 pathway and microtubule dynamics mediated protective effects on neuroplasticity. The AKT/GSK-3β/CRMP-2 pathway and microtubule dynamics may be involved in resilience to stress.
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Affiliation(s)
- Limin Sun
- Department of Psychiatry, Institute of Neuropsychiatry, Renmin Hospital of Wuhan University, Jiefang Road No. 238, Wuhan 430060, China
| | - Gaohua Wang
- Department of Psychiatry, Institute of Neuropsychiatry, Renmin Hospital of Wuhan University, Jiefang Road No. 238, Wuhan 430060, China.
| | - Zuotian Wu
- Department of Psychiatry, Institute of Neuropsychiatry, Renmin Hospital of Wuhan University, Jiefang Road No. 238, Wuhan 430060, China
| | - Yumeng Xie
- Department of Psychiatry, Institute of Neuropsychiatry, Renmin Hospital of Wuhan University, Jiefang Road No. 238, Wuhan 430060, China
| | - Lin Zhou
- Department of Psychiatry, Institute of Neuropsychiatry, Renmin Hospital of Wuhan University, Jiefang Road No. 238, Wuhan 430060, China
| | - Ling Xiao
- Department of Psychiatry, Institute of Neuropsychiatry, Renmin Hospital of Wuhan University, Jiefang Road No. 238, Wuhan 430060, China
| | - Huiling Wang
- Department of Psychiatry, Institute of Neuropsychiatry, Renmin Hospital of Wuhan University, Jiefang Road No. 238, Wuhan 430060, China
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Wu Z, Zhou L, Sun L, Xie Y, Xiao L, Wang H, Wang G. Brief postpartum separation from offspring promotes resilience to lipopolysaccharide challenge-induced anxiety and depressive-like behaviors and inhibits neuroinflammation in C57BL/6J dams. Brain Behav Immun 2021; 95:190-202. [PMID: 33766700 DOI: 10.1016/j.bbi.2021.03.016] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Revised: 02/25/2021] [Accepted: 03/17/2021] [Indexed: 12/27/2022] Open
Abstract
Emerging evidence indicates an important role for neuroinflammation in depression. Brief maternal separation promotes resilience to depression in offspring, but relatively little is known about the effects of different durations of postpartum separation (PS) from offspring on anxiety and depressive-like behaviors in dams following immune challenge. Lactating C57BL/6J mice were subjected to no separation (NPS), brief PS (15 min/day, PS15) or prolonged PS (180 min/day, PS180) from postpartum day (PPD) 1 to PPD21 and then injected with lipopolysaccharide (LPS). Behavioral tests, including the open field test (OFT) and forced swimming test (FST), were carried out at 24 h after the injection. LPSresulted in anxiety and depressive-like behaviors in NPS dams and activated ionized calcium-binding adaptor molecule (Iba1), an important biomarker of microglia, in the hippocampus. However, compared with NPS + LPS dams, PS15 + LPS dams spent significantly more time in the center of the OFT (anxiety-like behavior) and exhibited lower immobility time in the FST (depressive-like behavior), which indicated a phenomenon of resilience. Furthermore, the activation of neuroinflammation was inhibited in PS15 dams. Specifically, levels of the Iba1 mRNA and protein were decreased, while the mRNA expression of NLR family pyrin domain containing 3 (NLRP3) inflammasome/interleukin-18 (IL-18)/nuclear factor kappa-B (NF-κB) was decreased in the hippocampus. Furthermore, positive linear correlations were observed between microglial activation and LPS-induced depressive-like behaviors in dams. Collectively, the findings of this study confirm that brief PS from offspring promotes resilience to LPS immune challenge-induced behavioral deficits and inhibits neuroinflammation in dams separated from their offspring during lactation.
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Affiliation(s)
- Zuotian Wu
- Department of Psychiatry, Renmin Hospital of Wuhan University, Jiefang Road No.238, Wuhan 430060, China
| | - Lin Zhou
- Department of Psychiatry, Renmin Hospital of Wuhan University, Jiefang Road No.238, Wuhan 430060, China
| | - Limin Sun
- Department of Psychiatry, Renmin Hospital of Wuhan University, Jiefang Road No.238, Wuhan 430060, China
| | - Yumeng Xie
- Department of Psychiatry, Renmin Hospital of Wuhan University, Jiefang Road No.238, Wuhan 430060, China
| | - Ling Xiao
- Department of Psychiatry, Renmin Hospital of Wuhan University, Jiefang Road No.238, Wuhan 430060, China
| | - Huiling Wang
- Department of Psychiatry, Renmin Hospital of Wuhan University, Jiefang Road No.238, Wuhan 430060, China
| | - Gaohua Wang
- Department of Psychiatry, Renmin Hospital of Wuhan University, Jiefang Road No.238, Wuhan 430060, China.
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Wu Z, Wang G, Zhou L, Sun L, Xie Y, Xiao L. Neuroinflammation decreased hippocampal microtubule dynamics in the acute behavioral deficits induced by intracerebroventricular injection of lipopolysaccharide in male adult rats. Neuroreport 2021; 32:603-611. [PMID: 33850084 DOI: 10.1097/wnr.0000000000001638] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Neuroinflammation plays a vital role in the pathology of depression. Microtubule dynamics produces an immediate response to stress, but the effect of microtubule dynamics in the rats with acute behavioral deficits following a central immune challenge remains elusive. Adult male Sprague-Dawley rats were subjected to the intracerebroventricular (icv) injection of lipopolysaccharide (. Behavioral tests, including bodyweight, sucrose preference test (SPT), forced swimming test (FST) and open field test (OFT), were performed to evaluate anxiety-like and depressive-like phenotypes at 24 h after injection, and some neuroinflammation biomarkers and microtubule dynamics in the hippocampus were detected. Lipopolysaccharide decreased the bodyweight, sucrose preference in SPT (depressive-like behavior), spontaneous activity in OFT (anxiety-like behavior) and increased the immobility time in FST (depressive-like behavior). Besides, lipopolysaccharide increased the mRNA levels of hippocampal CD11b and ionized calcium binding adaptor molecule (Iba1), which suggest microglial activation, and also upregulated hippocampal NLR Family Pyrin Domain Containing 3 inflammasome/interleukin-18/nuclear factor kappa-B mRNA. Lipopolysaccharide injection(icv) reduced the ratio of Tyr-/Acet-tubulin, an important marker of microtubule dynamics, in the acute behavioral deficit rats. Specifically, a decrease in Tyr-tubulin and an increase in the expression of Acet-tubulin were observed, indicating weakened microtubule dynamics. Pearson correlation analysis further showed that there was a significant negative correlation between hippocampal microtubule dynamics and neuroinflammatory activity. This study confirmed that hippocampal microtubule dynamics was decreased in the rats with acute behavioral deficits following a central immune challenge.
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Affiliation(s)
- Zuotian Wu
- Department of Psychiatry, Renmin Hospital of Wuhan University, Jiefang, Wuhan, China
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Wu Z, Xiao L, Wang H, Wang G. Neurogenic hypothesis of positive psychology in stress-induced depression: Adult hippocampal neurogenesis, neuroinflammation, and stress resilience. Int Immunopharmacol 2021; 97:107653. [PMID: 33915495 DOI: 10.1016/j.intimp.2021.107653] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 03/12/2021] [Accepted: 04/03/2021] [Indexed: 12/12/2022]
Abstract
Stress is an important risk factor for depression. Emerging evidence supports the hypothesis that stress-mediated neuroinflammation destroys brain function and leads to anxiety-like and depression-like behaviors. Previous studies of stress-induced depression have mainly focused on pathological damage; however, the rise of positive psychology has attracted the interest of many researchers in environmental enrichment to promote stress resilience. The hippocampus is one of the most severely damaged brain regions in stress-induced depression. In addition, the hippocampus is one of the most unique regions in the brain, as new neurons are produced in the adult hippocampus, a process known as adult hippocampal neurogenesis (AHN). AHN is an important core component of the neurogenic hypothesis and has also become a major innovative breakthrough in positive psychology, in which environmental enrichment mediates stress resilience. Neuroinflammation, by activating microglia and releasing some proinflammatory cytokines, is increasingly shown to be one of the key determinant pathophysiological factors that negatively affects AHNand cognitive reserve. AHN is mainly related to remodeling stress response mechanisms, such as memory clearing, emotional control, and pattern separation, suggesting that a correlation may exist between neuroinflammation and AHN in stress resilience. Therefore, we summarized the previous research results to systematically expound on the relationship between AHN, stress resilience, and neuroinflammation. We hope this neurogenic hypothesis of positive psychology in stress-induced depression will provide a new perspective for the study of depression and antidepressant therapy.
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Affiliation(s)
- Zuotian Wu
- Department of Psychiatry, Renmin Hospital of Wuhan University, Jiefang Road No.238, Wuhan 430060, China
| | - Ling Xiao
- Department of Psychiatry, Renmin Hospital of Wuhan University, Jiefang Road No.238, Wuhan 430060, China
| | - Huiling Wang
- Department of Psychiatry, Renmin Hospital of Wuhan University, Jiefang Road No.238, Wuhan 430060, China
| | - Gaohua Wang
- Department of Psychiatry, Renmin Hospital of Wuhan University, Jiefang Road No.238, Wuhan 430060, China.
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Lin YF, Chen KC, Yang YK, Hsiao YH. Collapsin response mediator protein 5 (CRMP5) modulates susceptibility to chronic social defeat stress in mice. Mol Neurobiol 2021; 58:3175-3186. [PMID: 33638112 DOI: 10.1007/s12035-021-02336-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 02/17/2021] [Indexed: 11/25/2022]
Abstract
Collapsin response mediator protein 5 (CRMP5), a member of the CRMP family, is expressed in the brain, particularly in the hippocampus, an area of the brain that can modulate stress responses. Social stress has a well-known detrimental effect on health and can lead to depression, but not all individuals are equally sensitive to stress. To date, researchers have not conclusively determined how social stress increases the susceptibility of the brain to depression. Here, we used the chronic social defeat stress (CSDS) model and observed higher hippocampal CRMP5 expression in stress-susceptible (SS) mice than in control and stress-resilient (RES) mice. A negative correlation was observed between the expression levels of CRMP5 and the social interaction (SI) ratio. Reduced hippocampal CRMP5 expression increased the SI ratio in SS mice, whereas CRMP5 overexpression was sufficient to induce social avoidance behaviors in control mice following exposure to subthreshold social stress induced by lentivirus-based overexpression and inducible tetracycline-on strategies to upregulate CRMP5. Interestingly, increased CRMP5 expression in SS and lenti-CRMP5-treated mice also caused serum corticosterone concentrations to increase. These findings improve our understanding of the potential mechanism by which CRMP5 triggers susceptibility to social stress, and they support the further development of therapeutic agents for the treatment of stress disorders in humans.
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Affiliation(s)
- Yu-Fen Lin
- Department of Pharmacology, College of Medicine, National Cheng Kung University, Tainan, 70101, Taiwan
| | - Kao Chin Chen
- Department of Psychiatry, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yen Kuang Yang
- Department of Psychiatry, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Ya-Hsin Hsiao
- Department of Pharmacology, College of Medicine, National Cheng Kung University, Tainan, 70101, Taiwan.
- Institute of Behavioral Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
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Yoo DY, Jung HY, Kim W, Hahn KR, Kwon HJ, Nam SM, Chung JY, Yoon YS, Kim DW, Hwang IK. Entacapone Treatment Modulates Hippocampal Proteins Related to Synaptic Vehicle Trafficking. Cells 2020; 9:cells9122712. [PMID: 33352833 PMCID: PMC7765944 DOI: 10.3390/cells9122712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 12/09/2020] [Accepted: 12/10/2020] [Indexed: 11/29/2022] Open
Abstract
Entacapone, a reversible inhibitor of catechol-O-methyl transferase, is used for patients in Parkinson’s disease because it increases the bioavailability and effectiveness of levodopa. In the present study, we observed that entacapone increases novel object recognition and neuroblasts in the hippocampus. In the present study, two-dimensional electrophoresis (2-DE) and matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) mass spectrometry were performed to compare the abundance profiles of proteins expressed in the hippocampus after entacapone treatment in mice. Results of 2-DE, MALDI-TOF mass spectrometry, and subsequent proteomic analysis revealed an altered protein expression profile in the hippocampus after entacapone treatment. Based on proteomic analysis, 556 spots were paired during the image analysis of 2-DE gels and 76 proteins were significantly changed more than two-fold among identified proteins. Proteomic analysis indicated that treatment with entacapone induced expressional changes in proteins involved in synaptic transmission, cellular processes, cellular signaling, the regulation of cytoskeletal structure, energy metabolism, and various subcellular enzymatic reactions. In particular, entacapone significantly increased proteins related to synaptic trafficking and plasticity, such as dynamin 1, synapsin I, and Munc18-1. Immunohistochemical staining showed the localization of the proteins, and western blot confirmed the significant increases in dynamin I (203.5% of control) in the hippocampus as well as synapsin I (254.0% of control) and Munc18-1 (167.1% of control) in the synaptic vesicle fraction of hippocampus after entacapone treatment. These results suggest that entacapone can enhance hippocampal synaptic trafficking and plasticity against various neurological diseases related to hippocampal dysfunction.
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Affiliation(s)
- Dae Young Yoo
- Department of Anatomy and Cell Biology, Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea; (D.Y.Y.); (H.Y.J.); (W.K.); (K.R.H.); (Y.S.Y.)
- Department of Anatomy, College of Medicine, Soonchunhyang University, Cheonan 31151, Korea
| | - Hyo Young Jung
- Department of Anatomy and Cell Biology, Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea; (D.Y.Y.); (H.Y.J.); (W.K.); (K.R.H.); (Y.S.Y.)
| | - Woosuk Kim
- Department of Anatomy and Cell Biology, Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea; (D.Y.Y.); (H.Y.J.); (W.K.); (K.R.H.); (Y.S.Y.)
- Department of Biomedical Sciences, Research Institute for Bioscience and Biotechnology, Hallym University, Chuncheon 24252, Korea
| | - Kyu Ri Hahn
- Department of Anatomy and Cell Biology, Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea; (D.Y.Y.); (H.Y.J.); (W.K.); (K.R.H.); (Y.S.Y.)
| | - Hyun Jung Kwon
- Department of Biochemistry and Molecular Biology, Research Institute of Oral Sciences, College of Dentistry, Gangneung-Wonju National University, Gangneung 25457, Korea;
| | - Sung Min Nam
- Department of Anatomy, School of Medicine and Institute for Environmental Science, Wonkwang University, Iksan 54538, Korea;
| | - Jin Young Chung
- Department of Veterinary Internal Medicine and Geriatrics, College of Veterinary Medicine, Kangwon National University, Chuncheon 24341, Korea;
| | - Yeo Sung Yoon
- Department of Anatomy and Cell Biology, Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea; (D.Y.Y.); (H.Y.J.); (W.K.); (K.R.H.); (Y.S.Y.)
| | - Dae Won Kim
- Department of Biochemistry and Molecular Biology, Research Institute of Oral Sciences, College of Dentistry, Gangneung-Wonju National University, Gangneung 25457, Korea;
- Correspondence: (D.W.K.); (I.K.H.)
| | - In Koo Hwang
- Department of Anatomy and Cell Biology, Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea; (D.Y.Y.); (H.Y.J.); (W.K.); (K.R.H.); (Y.S.Y.)
- Correspondence: (D.W.K.); (I.K.H.)
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