1
|
Chen R, Qian L, Zhang Q, Qin J, Chen X, Xu X. SMP30 alleviates cerebral ischemia/reperfusion-induced neuronal injury by inhibiting HDAC4/PSD-95 to preserve mitochondrial function. J Neuropathol Exp Neurol 2024:nlae095. [PMID: 39254519 DOI: 10.1093/jnen/nlae095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/11/2024] Open
Abstract
Ischemic stroke is a major cause of global death and permanent disability. Major consequences of ischemic stroke include neuronal mitochondrial dysfunction. We investigated the effects of senescence marker protein 30 (SMP30) on mitochondria-mediated apoptosis and histone deacetylase 4 (HDAC4)/postsynaptic density-95 (PSD-95) signaling in stroke models in vivo and in vitro. Rats with middle cerebral artery occlusion/reperfusion (MCAO/R) were used to simulate cerebral ischemia/reperfusion (I/R) injury. SMP30 was downregulated in the brain tissues of rats after I/R induction. SMP30 overexpression decreased MCAO/R-induced infarct volumes and improved neurologic function and histopathological changes. Increasing SMP30 expression suppressed neuronal apoptosis and reduced mitochondrial dysfunction. SMP30 overexpression in SH-SY5Y and PC12 cells treated with oxygen-glucose deprivation/reoxygenation (OGD/R) decreased HDAC4 and PSD-95 expression; PSD-95 could bind to HDAC4. Furthermore, HDAC4 upregulation abolished the effects of SMP30 overexpression on OGD/R-induced apoptosis and mitochondrial dysfunction in SH-SY5Y cells. Together, these findings indicate that SMP30 alleviates cerebral I/R-induced neuronal injury by inhibiting HDAC4/PSD-95 to preserve mitochondrial function. These interactions might provide new treatment methods for patients with ischemic stroke.
Collapse
Affiliation(s)
- Rundong Chen
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China
- Neurovascular Center, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Lei Qian
- Neurovascular Center, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Qian Zhang
- Gerontology, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Jiajun Qin
- Department of Neurosurgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Xianzhen Chen
- Department of Neurosurgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Xiaolong Xu
- Neurovascular Center, Changhai Hospital, Naval Medical University, Shanghai, China
| |
Collapse
|
2
|
Dhapola R, Medhi B, HariKrishnaReddy D. Insight into the pathophysiological advances and molecular mechanisms underlying cerebral stroke: current status. Mol Biol Rep 2024; 51:649. [PMID: 38733445 DOI: 10.1007/s11033-024-09597-0] [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: 01/30/2024] [Accepted: 04/30/2024] [Indexed: 05/13/2024]
Abstract
Molecular pathways involved in cerebral stroke are diverse. The major pathophysiological events that are observed in stroke comprises of excitotoxicity, oxidative stress, mitochondrial damage, endoplasmic reticulum stress, cellular acidosis, blood-brain barrier disruption, neuronal swelling and neuronal network mutilation. Various biomolecules are involved in these pathways and several major proteins are upregulated and/or suppressed following stroke. Different types of receptors, ion channels and transporters are activated. Fluctuations in levels of various ions and neurotransmitters have been observed. Cells involved in immune responses and various mediators involved in neuro-inflammation get upregulated progressing the pathogenesis of the disease. Despite of enormity of the problem, there is not a single therapy that can limit infarction and neurological disability due to stroke. This is because of poor understanding of the complex interplay between these pathophysiological processes. This review focuses upon the past to present research on pathophysiological events that are involved in stroke and various factors that are leading to neuronal death following cerebral stroke. This will pave a way to researchers for developing new potent therapeutics that can aid in the treatment of cerebral stroke.
Collapse
Affiliation(s)
- Rishika Dhapola
- Advanced Pharmacology and Neuroscience Laboratory, Department of Pharmacology, School of Health Sciences, Central University of Punjab, Ghudda, Bathinda, Punjab, 151401, India
| | - Bikash Medhi
- Department of Pharmacology, Post Graduate Institute of Medical Education and Research, Chandigarh, Punjab, 160012, India
| | - Dibbanti HariKrishnaReddy
- Advanced Pharmacology and Neuroscience Laboratory, Department of Pharmacology, School of Health Sciences, Central University of Punjab, Ghudda, Bathinda, Punjab, 151401, India.
| |
Collapse
|
3
|
Lorente L, Martín MM, Pérez-Cejas A, Ramos-Gómez L, Solé-Violan J, Cáceres JJ, Jiménez A, González-Rivero AF. Elevated soluble fas blood concentrations in patients dying from spontaneous intracerebral hemorrhage. World J Crit Care Med 2023; 12:63-70. [PMID: 37034020 PMCID: PMC10075047 DOI: 10.5492/wjccm.v12.i2.63] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 12/09/2022] [Accepted: 02/01/2023] [Indexed: 03/07/2023] Open
Abstract
BACKGROUND Several studies of spontaneous intracerebral hemorrhage (SICH) patients have shown apoptotic changes in brain samples after hematoma evacuation. However, there have been no data on the association between blood concentrations of soluble fas (sFas) (the main surface death receptor of the extrinsic apoptosis pathway) and the prognosis of spontaneous intracranial hypotension (SIH) patients.
AIM To determine whether there is an association between blood sFas concentrations and SICH patient mortality.
METHODS We included patients with severe and supratentorial SIH. Severe was defined as having Glasgow Coma Scale < 9. We determined serum sFas concentrations at the time of severe SICH diagnosis.
RESULTS We found that non-surviving patients (n = 36) compared to surviving patients (n = 39) had higher ICH score (P = 0.001), higher midline shift (P = 0.004), higher serum sFas concentrations (P < 0.001), and lower rate of early hematoma evacuation (P = 0.04). Multiple logistic regression analysis showed an association between serum sFas concentrations and 30-d mortality (odds ratio = 1.070; 95% confidence interval = 1.014-1.129; P = 0.01) controlling for ICH score, midline shift, and early hematoma evacuation.
CONCLUSION The association of blood sFas concentrations and SICH patient mortality is a novel finding in our study.
Collapse
Affiliation(s)
- Leonardo Lorente
- Department of Intensive Care, Hospital Universitario de Canarias, La Laguna 38320, Tenerife, Spain
| | - María M Martín
- Department of Intensive Care, Hospital Universitario Nuestra Señora de Candelaria, Santa Cruz de Tenerife 38010, Tenerife, Spain
| | - Antonia Pérez-Cejas
- Department of Laboratory, Hospital Universitario de Canarias, La Laguna 38320, Tenerife, Spain
| | - Luis Ramos-Gómez
- Department of Intensive Care, Hospital Universitario de La Palma, Breña Alta 38713, Spain
| | - Jordi Solé-Violan
- Department of Critical Care, Hospital Universitario de Gran Canaria Dr Negrin, Las Palmas de Gran Canaria 35010, Spain
- Department of Critical Care, Universidad Fernando Pessoa Canarias, Las Palmas de Gran Canaria 35450, Spain
| | - Juan J Cáceres
- Department of Intensive Care, Hospital Insular, Las Palmas de Gran Canaria 35016, Spain
| | - Alejandro Jiménez
- Research Unit, Hospital Universitario de Canarias, La Laguna 38320, Tenerife, Spain
| | | |
Collapse
|
4
|
Das J, Mahammad FS, Krishnamurthy RG. An integrated chemo-informatics and in vitro experimental approach repurposes acarbose as a post-ischemic neuro-protectant. 3 Biotech 2022; 12:71. [PMID: 35223357 PMCID: PMC8847516 DOI: 10.1007/s13205-022-03130-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 01/23/2022] [Indexed: 11/26/2022] Open
Abstract
The increasing prevalence of ischemic stroke combined with limited therapeutic options highlights the compelling need for continued research into the development of future neuro-therapeutics. Death-Associated Protein Kinase 1 (DAPK1) and p53 protein-protein interaction serve as a signaling point for the convergence of apoptosis and necrosis in cerebral ischemia. In this study, we used an integrated chemo-informatics and in vitro experimental drug repurposing strategy to screen potential small-molecule inhibitors of DAPK1-p53 interaction from the United States of America Food and Drug Administration (FDA) approved drug database exhibiting post-ischemic neuroprotective and neuro-regenerative efficacy and mechanisms. The computational docking and molecular dynamics simulation of FDA-approved drugs followed by an in vitro experimental validation identified acarbose, an anti-diabetic medication and caloric restriction mimetic as a potential inhibitor of DAPK1-p53 interaction. The evaluation of post-ischemic neuroprotective and regenerative efficacy and mechanisms of action for acarbose was carried out using a set of experimental methods, including cell viability, proliferation and differentiation assays, fluorescence staining, and gene expression analysis. Post-ischemic administration of acarbose conferred significant neuroprotection against ischemia-reperfusion injury in vitro. The reduced fluorescence emission in cells stained with pS20 supported the potential of acarbose in inhibiting the DAPK1-p53 interaction. Acarbose prevented mitochondrial and lysosomal dysfunction, and favorably modulated gene expression related to cell survival, inflammation, and regeneration. BrdU staining and neurite outgrowth assay showed a significant increase in cell proliferation and differentiation in acarbose-treated group. This is the first study known to provide mechanistic insight into the post-ischemic neuroprotective and neuro-regenerative potential of acarbose. Our results provide a strong basis for preclinical studies to evaluate the safety and neuroprotective efficacy of acarbose against ischemic stroke. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s13205-022-03130-5.
Collapse
Affiliation(s)
- Jyotirekha Das
- School of Biotechnology, National Institute of Technology Calicut, Calicut, Kerala 673601 India
| | - Fayaz Shaik Mahammad
- Department of Biotechnology, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka 576104 India
| | | |
Collapse
|
5
|
Lorente L, Martín MM, Pérez-Cejas A, González-Rivero AF, Ramos-Gómez L, Solé-Violán J, Cáceres JJ, Cabrera J, Uribe L, Ferrer-Moure C, Jiménez A. Mortality prediction of patients with spontaneous intracerebral hemorrhage by serum soluble Fas ligand concentrations. Expert Rev Mol Diagn 2021; 22:233-238. [PMID: 34894981 DOI: 10.1080/14737159.2022.2017775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
BACKGROUND A study of patients with spontaneous intracerebral hemorrhage (SIH) found a higher content of Fas ligand in the perihematomic brain area compared to healthy brain areas. The objective of this study was to analyze whether blood soluble Fas ligand (sFasL) concentrations could be used to estimate the prognosis of SIH patients. METHODS Observational and prospective study performed in five Spanish Intensive Care Units. Patients with severe supratentorial SIH, defined as Glasgow Coma Scale (GCS) <9, were included. Serum sFasL levels were determined at the time of diagnosis of severe SIH. Mortality at 30 days was the end-point study. RESULTS Surviving SIH patients (n = 41) compared to nonsurvivors (n = 38) showed lower serum sFasL levels (p < 0.001). The area under curve of mortality prediction for serum sFasL levels was 0.79 (95% CI = 0.70-0.89; p < 0.001). Multiple logistic regression analysis found an association of serum sFasL concentrations with 30-day mortality (ORo = 1,034; 95% CI = 1,010-1,058; p = 0,006) after controlling for midline shift, early hematoma evacuation, and intracerebral hemorrhage score. CONCLUSIONS The capability of serum sFasL to predict SIH patient mortality is the main novel finding of our study. ABBREVIATIONS APACHE II: Acute Physiology and Chronic Health Evaluation; aPTT: activated partial thromboplastin time; FIO2: fraction of inspired oxygen; GCS: Glasgow Coma Scale; ICU: Intensive Care Unit; INR: international normalized ratio; PaO2: pressure of arterial oxygen.
Collapse
Affiliation(s)
- Leonardo Lorente
- Intensive Care Unit, Hospital Universitario de Canarias, La Laguna Santa Cruz de Tenerife, Spain
| | - María M Martín
- Intensive Care Unit, Hospital Universitario Nuestra Señora de Candelaria, Santa Cruz de Tenerife, Spain
| | - Antonia Pérez-Cejas
- Laboratory Department, Hospital Universitario de Canarias, Santa Cruz de Tenerife, Spain
| | | | | | - Jordi Solé-Violán
- Intensive Care Unit, Hospital Universitario Dr. Negrín. CIBERES, Las Palmas de Gran Canaria, Spain
| | - Juan J Cáceres
- Intensive Care Unit, Hospital Insular, Las Palmas de Gran Canaria, Spain
| | - Judith Cabrera
- Intensive Care Unit, Hospital Universitario Nuestra Señora de Candelaria, Santa Cruz de Tenerife, Spain
| | - Luis Uribe
- Intensive Care Unit, Hospital Universitario Nuestra Señora de Candelaria, Santa Cruz de Tenerife, Spain
| | - Carmen Ferrer-Moure
- Laboratory Department, Hospital Universitario de Canarias, La Laguna, Santa Cruz de Tenerife, Spain
| | - Alejandro Jiménez
- Research Unit, Hospital Universitario de Canarias, La Laguna. Santa Cruz de Tenerife, Spain
| |
Collapse
|
6
|
Li H, Li J, Guan Y, Wang Y. The emerging role of kainate receptor functional dysregulation in pain. Mol Pain 2021; 17:1744806921990944. [PMID: 33567997 PMCID: PMC7883153 DOI: 10.1177/1744806921990944] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Pain is a serious clinical challenge, and is associated with a significant reduction in quality of life and high financial costs for affected patients. Research efforts have been made to explore the etiological basis of pain to guide the future treatment of patients suffering from pain conditions. Findings from studies using KA (kainate) receptor agonist, antagonists and receptor knockout mice suggested that KA receptor dysregulation and dysfunction may govern both peripheral and central sensitization in the context of pain. Additional evidence showed that KA receptor dysfunction may disrupt the finely-tuned process of glutamic acid transmission, thereby contributing to the onset of a range of pathological contexts. In the present review, we summarized major findings in recent studies which examined the roles of KA receptor dysregulation in nociceptive transmission and in pain. This timely overview of current knowledge will help to provide a framework for future developing novel therapeutic strategies to manage pain.
Collapse
Affiliation(s)
- Huili Li
- Department of Anesthesiology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Junfa Li
- Department of Neurobiology, Capital Medical University, Beijing, China
| | - Yun Guan
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Yun Wang
- Department of Anesthesiology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| |
Collapse
|
7
|
Lorente L, Martín MM, Pérez-Cejas A, González-Rivero AF, Ramos-Gómez L, Solé-Violán J, Cáceres JJ, Cabrera J, Alvarez-Castillo A, Ferrer-Moure C, Jiménez A. High Serum Soluble Fas Ligand Levels in Non-survivor Traumatic Brain Injury Patients. Neurocrit Care 2021; 35:249-254. [PMID: 33403586 DOI: 10.1007/s12028-020-01158-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Accepted: 11/16/2020] [Indexed: 11/25/2022]
Abstract
PURPOSE Soluble Fas Ligand (sFasL) is one of the main ligands that activates the apoptosis extrinsic pathway. Higher expression of FasL in brain samples and higher cerebrospinal fluid FasL concentrations in traumatic brain injury (TBI) patients than in controls have been found. However, the potential association between blood sFasL concentrations and TBI mortality has not been reported. Therefore, the objective of this study was to determine whether that association exists. METHODS We included patients with a severe isolated TBI, defined as < 9 points in Glasgow Coma Scale (GCS) and < 10 non-cranial aspects points in Injury Severity Score in this observational and prospective study performed in 5 Intensive Care Units. We measured serum sFasL concentrations on day 1 of TBI. RESULTS We found that 30-day survivor (n = 59) in comparison to non-survivor patients (n = 24) had higher GCS (p = 0.001), lower age (p = 0.004), lower APACHE-II score (p < 0.001), lower intracranial pressure (ICP) (p = 0.01), lower computer tomography (CT) findings of high risk of death (p = 0.02) and lower serum sFasL concentrations (p < 0.001). The area under the curve for mortality prediction by serum sFasL levels was of 75% (95% CI = 63%-87%; p < 0.001). In Kaplan-Meier analysis was found that patients with serum sFasL levels > 29.2 pg/mL had a higher mortality rate (Hazard ratio = 6.2; 95% CI = 2.6-14.8; p < 0.001). Multiple logistic regression analysis found an association between serum sFasL levels and mortality after controlling for GCS, age and CT findings (OR = 1.055; 95% CI = 1.018-1.094; p = 0.004), and after controlling for APACHE-II, ICP and CT findings (OR = 1.048; 95% CI = 1.017-1.080; p = 0.002). CONCLUSIONS The association between serum sFasL levels and 30-day mortality in TBI patients was the major novel finding of our study; however, future validation could be interesting to confirm those results.
Collapse
Affiliation(s)
- Leonardo Lorente
- Intensive Care Unit, Hospital Universitario de Canarias, Ofra, s/n, La Laguna, 38320, Santa Cruz de Tenerife, Spain.
| | - María M Martín
- Intensive Care Unit, Hospital Universitario Nuestra Señora de Candelaria, Crta del Rosario s/n, 38010, Santa Cruz de Tenerife, Spain
| | - Antonia Pérez-Cejas
- Laboratory Department, Hospital Universitario de Canarias, Ofra, s/n, La Laguna, 38320, Tenerife, Spain
| | - Agustín F González-Rivero
- Laboratory Department, Hospital Universitario de Canarias, Ofra, s/n, La Laguna, 38320, Tenerife, Spain
| | - Luis Ramos-Gómez
- Intensive Care Unit, Hospital General de La Palma, Buenavista de Arriba, s/n, Breña Alta, 38713, La Palma, Spain
| | - Jordi Solé-Violán
- Intensive Care Unit, Hospital Universitario Dr. Negrín, CIBERES, Barranco de La Ballena s/n, 35010, Las Palmas de Gran Canaria, Spain
| | - Juan J Cáceres
- Intensive Care Unit, Hospital Insular, Plaza Dr. Pasteur s/n, 35016, Las Palmas, Spain
| | - Judith Cabrera
- Intensive Care Unit, Hospital Universitario de Canarias, Ofra, s/n, La Laguna, 38320, Santa Cruz de Tenerife, Spain
| | - Andrea Alvarez-Castillo
- Intensive Care Unit, Hospital Universitario de Canarias, Ofra, s/n, La Laguna, 38320, Santa Cruz de Tenerife, Spain
| | - Carmen Ferrer-Moure
- Laboratory Department, Hospital Universitario de Canarias, Ofra, s/n, La Laguna, 38320, Tenerife, Spain
| | - Alejandro Jiménez
- Research Unit, Hospital Universitario de Canarias, Ofra, s/n, La Laguna, 38320, Santa Cruz de Tenerife, Spain
| |
Collapse
|
8
|
Jiang GJ, Fan TJ. Novel techniques to prevent apoptosis and improve regeneration in corneal endothelial cells. EXPERT REVIEW OF OPHTHALMOLOGY 2020. [DOI: 10.1080/17469899.2020.1794821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Guo-Jian Jiang
- Laboratory for Corneal Tissue Engineering, College of Marine Life Sciences, Ocean University of China, Qingdao, Shandong Province, China
| | - Ting-Jun Fan
- Laboratory for Corneal Tissue Engineering, College of Marine Life Sciences, Ocean University of China, Qingdao, Shandong Province, China
| |
Collapse
|
9
|
Ran X, Gestwicki JE. Inhibitors of protein-protein interactions (PPIs): an analysis of scaffold choices and buried surface area. Curr Opin Chem Biol 2018; 44:75-86. [PMID: 29908451 DOI: 10.1016/j.cbpa.2018.06.004] [Citation(s) in RCA: 167] [Impact Index Per Article: 27.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Accepted: 06/04/2018] [Indexed: 12/17/2022]
Abstract
Protein-protein interactions (PPI) were once considered 'undruggable', but clinical successes, driven by advanced methods in drug discovery, have challenged that notion. Here, we review the last three years of literature on PPI inhibitors to understand what is working and why. From the 66 recently reported PPI inhibitors, we found that the average molecular weight was significantly greater than 500Da, but that this trend was driven, in large part, by the contribution of peptide-based compounds. Despite differences in average molecular weight, we found that compounds based on small molecules or peptides were almost equally likely to be potent inhibitors (KD<1μM). Finally, we found PPIs with buried surface area (BSA) less than 2000Å2 were more likely to be inhibited by small molecules, while PPIs with larger BSA values were typically inhibited by peptides. PPIs with BSA values over 4000Å2 seemed to create a particular challenge, especially for orthosteric small molecules. Thus, it seems important to choose the inhibitor scaffold based on the properties of the target interaction. Moreover, this survey suggests a (more nuanced) conclusion to the question of whether PPIs are good drug targets; namely, that some PPIs are readily 'druggable' given the right choice of scaffold, while others still seem to deserve the 'undruggable' moniker.
Collapse
Affiliation(s)
- Xu Ran
- Institute for Neurodegenerative Diseases and Department of Pharmaceutical Chemistry, University of California San Francisco, San Francisco, CA 94158, United States
| | - Jason E Gestwicki
- Institute for Neurodegenerative Diseases and Department of Pharmaceutical Chemistry, University of California San Francisco, San Francisco, CA 94158, United States.
| |
Collapse
|
10
|
Lu Y, Hsiang F, Chang JH, Yao XQ, Zhao H, Zou HY, Wang L, Zhang QX. Houshiheisan and its components promote axon regeneration after ischemic brain injury. Neural Regen Res 2018; 13:1195-1203. [PMID: 30028327 PMCID: PMC6065233 DOI: 10.4103/1673-5374.235031] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Houshiheisan, a classic prescription in traditional Chinese medicine, contains Flos Chrysanthemi, Radix Saposhnikoviae, Ramulus Cinnamomi, Rhizoma Chuanxiong, Radix et Rhizoma Asari, Radix Platycodonis, Rhizoma Atractylodis macrocephalae, Poria, Rhizoma Zingiberis, Radix Angelicae sinensis, Radix et Rhizoma Ginseng, Radix Scutellariae and Concha Ostreae. According to traditional Chinese medicine theory, Flos Chrysanthemi, Radix Saposhnikoviae, Ramulus Cinnamomi, Rhizoma Chuanxiong, Radix et Rhizoma Asari and Radix Platycodonis are wind-dispelling drugs; Rhizoma Atractylodis macrocephalae, Poria, Rhizoma Zingiberis, Radix Angelicae sinensis and Radix et Rhizoma Ginseng are deficiency-nourishing drugs. A large number of randomized controlled trials have shown that Houshiheisan is effective in treating stroke, but its mechanism of action is unknown. Axonal remodeling is an important mechanism in neural protection and regeneration. Therefore, this study explored the effect and mechanism of action of Houshiheisan on the repair of axons after cerebral ischemia. Rat models of focal cerebral ischemia were established by ligating the right middle cerebral artery. At 6 hours after model establishment, rats were intragastrically administered 10.5 g/kg Houshiheisan or 7.7 g/kg wind-dispelling drug or 2.59 g/kg deficiency-nourishing drug. These medicines were intragastrically administered as above every 24 hours for 7 consecutive days. Houshiheisan, and its wind-dispelling and deficiency-nourishing components reduced the neurological deficit score and ameliorated axon and neuron lesions after cerebral ischemia. Furthermore, Houshiheisan, and its wind-dispelling and deficiency-nourishing components decreased the expression of proteins that inhibit axonal remodeling: amyloid precursor protein, neurite outgrowth inhibitor protein A (Nogo-A), Rho family small GTPase A (RhoA) and Rho-associated kinase 2 (Rock2), and increased the expression of growth associated protein-43, microtubule-associated protein-2, netrin-1, Ras-related C3 botulinum toxin substrate 1 (Rac1) and cell division cycle 42 (Cdc42). The effect of Houshiheisan was stronger than wind-dispelling drugs or deficiency-nourishing drugs alone. In conclusion, Houshiheisan, and wind-dispelling and deficiency-nourishing drugs promote the repair of axons and nerve regeneration after cerebral ischemia through Nogo-A/RhoA/Rock2 and Netrin-1/Rac1/Cdc42 signaling pathways. These effects are strongest with Houshiheisan.
Collapse
Affiliation(s)
- Yue Lu
- School of Traditional Chinese Medicine, Capital Medical University; Beijing Key Lab of TCM Collateral Disease Theory Research, Beijing, China
| | - Flora Hsiang
- School of Traditional Chinese Medicine, Capital Medical University; Beijing Key Lab of TCM Collateral Disease Theory Research, Beijing, China
| | - Jia-Hui Chang
- School of Traditional Chinese Medicine, Capital Medical University; Beijing Key Lab of TCM Collateral Disease Theory Research, Beijing, China
| | - Xiao-Quan Yao
- School of Traditional Chinese Medicine, Capital Medical University; Beijing Key Lab of TCM Collateral Disease Theory Research, Beijing, China
| | - Hui Zhao
- School of Traditional Chinese Medicine, Capital Medical University; Beijing Key Lab of TCM Collateral Disease Theory Research, Beijing, China
| | - Hai-Yan Zou
- School of Traditional Chinese Medicine, Capital Medical University; Beijing Key Lab of TCM Collateral Disease Theory Research, Beijing, China
| | - Lei Wang
- School of Traditional Chinese Medicine, Capital Medical University; Beijing Key Lab of TCM Collateral Disease Theory Research, Beijing, China
| | - Qiu-Xia Zhang
- School of Traditional Chinese Medicine, Capital Medical University; Beijing Key Lab of TCM Collateral Disease Theory Research, Beijing, China
| |
Collapse
|
11
|
Cui H, Li S, Xu C, Zhang J, Sun Z, Chen H. Emodin alleviates severe acute pancreatitis-associated acute lung injury by decreasing pre-B-cell colony-enhancing factor expression and promoting polymorphonuclear neutrophil apoptosis. Mol Med Rep 2017; 16:5121-5128. [PMID: 28849044 PMCID: PMC5647045 DOI: 10.3892/mmr.2017.7259] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Accepted: 04/20/2017] [Indexed: 12/16/2022] Open
Abstract
The present study aimed to evaluate the protective effects of emodin on severe acute pancreatitis (SAP)‑associated acute lung injury (ALI), and investigated the possible mechanism involved. SAP was induced in Sprague‑Dawley rats by retrograde infusion of 5% sodium taurocholate (1 ml/kg), after which, rats were divided into various groups and were administered emodin, FK866 [a competitive inhibitor of pre‑B‑cell colony‑enhancing factor (PBEF)] or dexamethasone (DEX). DEX was used as a positive control. Subsequently, PBEF expression was detected in polymorphonuclear neutrophils (PMNs) isolated from rat peripheral blood by reverse transcription‑quantitative polymerase chain reaction and western blotting. In addition, histological alterations, apoptosis in lung/pancreatic tissues, apoptosis of peripheral blood PMNs and alterations in the expression of apoptosis‑associated proteins were examined by hematoxylin and eosin staining, terminal deoxynucleotidyl‑transferase‑mediated dUTP nick end labeling assay, Annexin V/propidium iodide (PI) assay and western blotting, respectively. Serum amylase activity and wet/dry (W/D) weight ratios were also measured. An in vitro study was also conducted, in which PMNs were obtained from normal Sprague‑Dawley rats and were incubated with emodin, FK866 or DEX in the presence of lipopolysaccharide (LPS). Apoptosis of PMNs and the expression levels of apoptosis‑associated proteins were examined in cultured PMNs in vitro by Annexin V/PI assay and western blotting, respectively. The results demonstrated that emodin, FK866 and DEX significantly downregulated PBEF expression in peripheral blood PMNs. In addition, emodin, FK866 and DEX reduced serum amylase activity, decreased lung and pancreas W/D weight ratios, alleviated lung and pancreatic injuries, and promoted PMN apoptosis by regulating the expression of apoptosis‑associated proteins: Fas, Fas ligand, B‑cell lymphoma (Bcl)‑2‑associated X protein, cleaved caspase‑3 and Bcl‑extra‑large. In addition, the in vitro study demonstrated that emodin, FK866 and DEX significantly reversed the LPS‑induced decrease of apoptosis in PMNs by regulating the expression of apoptosis‑associated proteins. In conclusion, the present study demonstrated that emodin may protect against SAP‑associated ALI by decreasing PBEF expression, and promoting PMN apoptosis via the mitochondrial and death receptor apoptotic pathways.
Collapse
Affiliation(s)
- Hongzhang Cui
- Department of General Surgery, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, P.R. China
| | - Shu Li
- Department of Chinese Medicine, Dalian Municipal Central Hospital, Dalian, Liaoning 116033, P.R. China
| | - Caiming Xu
- Department of Chinese Medicine, Dalian Obstetrics and Gynecology Hospital, Dalian, Liaoning 116083, P.R. China
| | - Jingwen Zhang
- Department of General Surgery, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, P.R. China
| | - Zhongwei Sun
- Department of General Surgery, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, P.R. China
| | - Hailong Chen
- Department of General Surgery, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, P.R. China
| |
Collapse
|