1
|
Denaro S, Pasquinucci L, Turnaturi R, Alberghina C, Longhitano L, Giallongo S, Costanzo G, Spoto S, Grasso M, Zappalà A, Li Volti G, Tibullo D, Vicario N, Parenti R, Parenti C. Sigma-1 Receptor Inhibition Reduces Mechanical Allodynia and Modulate Neuroinflammation in Chronic Neuropathic Pain. Mol Neurobiol 2024; 61:2672-2685. [PMID: 37922065 PMCID: PMC11043107 DOI: 10.1007/s12035-023-03717-w] [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: 06/21/2023] [Accepted: 10/17/2023] [Indexed: 11/05/2023]
Abstract
Neuropathic pain is one of the most debilitating forms of chronic pain, resulting from an injury or disease of the somatosensory nervous system, which induces abnormal painful sensations including allodynia and hyperalgesia. Available treatments are limited by severe side-effects and reduced efficacy in the chronic phase of the disease. Sigma-1 receptor (σ1R) has been identified as a chaperone protein, which modulate opioid receptors activities and the functioning of several ion channels, exerting a role in pain transmission. As such, it represents a druggable target to treat neuropathic pain. This study aims at investigating the therapeutic potential of the novel compound (+)-2R/S-LP2, a σ1R antagonist, in reducing painful behaviour and modulating the neuroinflammatory environment. We showed that repeated administration of the compound significantly inhibited mechanical allodynia in neuropathic rats, increasing the withdrawal threshold as compared to CCI-vehicle rats. Moreover, we found that (+)-2R/S-LP2-mediated effects resolve the neuroinflammatory microenvironment by reducing central gliosis and pro-inflammatory cytokines expression levels. This effect was coupled with a significant reduction of connexin 43 (Cx43) expression levels and gap junctions/hemichannels mediated microglia-to-astrocyte communication. These results suggest that inhibition of σ1R significantly attenuates neuropathic pain chronicization, thus representing a viable effective strategy.
Collapse
Affiliation(s)
- Simona Denaro
- Section of Physiology, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123, Catania, Italy
| | - Lorella Pasquinucci
- Section of Medicinal Chemistry, Department of Drug and Health Sciences, University of Catania, 95123, Catania, Italy
| | - Rita Turnaturi
- Section of Medicinal Chemistry, Department of Drug and Health Sciences, University of Catania, 95123, Catania, Italy
| | - Cristiana Alberghina
- Section of Physiology, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123, Catania, Italy
| | - Lucia Longhitano
- Section of Biochemistry, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123, Catania, Italy
| | - Sebastiano Giallongo
- Section of Biochemistry, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123, Catania, Italy
| | - Giuliana Costanzo
- Section of Medicinal Chemistry, Department of Drug and Health Sciences, University of Catania, 95123, Catania, Italy
| | - Salvatore Spoto
- Section of Pharmacology and Toxicology, Department of Drug and Health Sciences, University of Catania, 95123, Catania, Italy
| | - Margherita Grasso
- Unit of Neuropharmacology and Translational Neurosciences, Oasi Research Institute-IRCCS, 94018, Troina, Italy
| | - Agata Zappalà
- Section of Physiology, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123, Catania, Italy
| | - Giovanni Li Volti
- Section of Biochemistry, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123, Catania, Italy
| | - Daniele Tibullo
- Section of Biochemistry, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123, Catania, Italy
| | - Nunzio Vicario
- Section of Physiology, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123, Catania, Italy.
| | - Rosalba Parenti
- Section of Physiology, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123, Catania, Italy.
| | - Carmela Parenti
- Section of Pharmacology and Toxicology, Department of Drug and Health Sciences, University of Catania, 95123, Catania, Italy
| |
Collapse
|
2
|
Liu Q, Yan X, Yuan Y, Li R, Zhao Y, Fu J, Wang J, Su J. HTRA2/OMI-Mediated Mitochondrial Quality Control Alters Macrophage Polarization Affecting Systemic Chronic Inflammation. Int J Mol Sci 2024; 25:1577. [PMID: 38338855 PMCID: PMC10855076 DOI: 10.3390/ijms25031577] [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: 12/28/2023] [Revised: 01/22/2024] [Accepted: 01/24/2024] [Indexed: 02/12/2024] Open
Abstract
Systemic chronic inflammation (SCI) due to intrinsic immune over-activation is an important factor in the development of many noninfectious chronic diseases, such as neurodegenerative diseases and diabetes mellitus. Among these immune responses, macrophages are extensively involved in the regulation of inflammatory responses by virtue of their polarization plasticity; thus, dysregulation of macrophage polarization direction is one of the potential causes of the generation and maintenance of SCI. High-temperature demand protein A2 (HtrA2/Omi) is an important regulator of mitochondrial quality control, not only participating in the degradation of mis-accumulated proteins in the mitochondrial unfolded protein response (UPRmt) to maintain normal mitochondrial function through its enzymatic activity, but also participating in the regulation of mitochondrial dynamics-related protein interactions to maintain mitochondrial morphology. Recent studies have also reported the involvement of HtrA2/Omi as a novel inflammatory mediator in the regulation of the inflammatory response. HtrA2/Omi regulates the inflammatory response in BMDM by controlling TRAF2 stabilization in a collagen-induced arthritis mouse model; the lack of HtrA2 ameliorates pro-inflammatory cytokine expression in macrophages. In this review, we summarize the mechanisms by which HtrA2/Omi proteins are involved in macrophage polarization remodeling by influencing macrophage energy metabolism reprogramming through the regulation of inflammatory signaling pathways and mitochondrial quality control, elucidating the roles played by HtrA2/Omi proteins in inflammatory responses. In conclusion, interfering with HtrA2/Omi may become an important entry point for regulating macrophage polarization, providing new research space for developing HtrA2/Omi-based therapies for SCI.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | - Jing Su
- Key Laboratory of Pathobiology, Department of Pathophysiology, Ministry of Education, College of Basical Medical Sciences, Jilin University, 126 Xinmin Street, Changchun 130012, China
| |
Collapse
|
3
|
Zsiros V, Dóczi N, Petővári G, Pop A, Erdei Z, Sebestyén A, L Kiss A. BMP-induced non-canonical signaling is upregulated during autophagy-mediated regeneration in inflamed mesothelial cells. Sci Rep 2023; 13:10426. [PMID: 37369758 PMCID: PMC10300029 DOI: 10.1038/s41598-023-37453-x] [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: 10/10/2022] [Accepted: 06/22/2023] [Indexed: 06/29/2023] Open
Abstract
Previously, we showed that after Freund's adjuvant-induced peritonitis, rat mesothelial cells regain their epithelial phenotype through mesenchymal-epithelial transition (MET) accompanied by autophagy. Since bone morphogenetic proteins (BMPs) are well-known MET-inducers, we were interested in the potential expression of BMPs and BMP-induced pathways. Although mesothelial cells expressed lower amounts of BMP7, its level in the peritoneal cavity and mesothelial synthesis of BMP4 were significantly increased during inflammation. BMPR1A and BMPR2 were also significantly expressed. Expression of transforming growth factor beta-activated kinase (TAK1) and c-Jun NH2-terminal kinases (JNK1-JNK2) were more intense than that of phosphorylated Mothers Against Decapentaplegic homolog 1/5 (p-SMAD1/5), confirming that the non-canonical pathway of BMPs prevailed in our model. JNK signaling through B-cell lymphoma-2 (Bcl-2) can contribute to Beclin-1 activation. We demonstrated that TAK1-JNK-Bcl-2 signaling was upregulated simultaneously with the autophagy-mediated regeneration. A further goal of our study was to prove the regenerative role of autophagy after inflammation. We used a specific inhibitor, bafilomycin A1 (BafA1), and found that BafA1 treatment decreased the expression of microtubule-associated protein 1A/1B-light chain 3 (LC3B) and resulted in morphological signs of cell death in inflamed mesothelial cells indicating that if autophagy is arrested, regeneration turns into cell death and consequently, mesothelial cells die.
Collapse
Affiliation(s)
- Viktória Zsiros
- Department of Anatomy, Histology and Embryology, Semmelweis University Budapest, Tűzoltó u. 58., Budapest, 1094, Hungary.
| | - Nikolett Dóczi
- Department of Anatomy, Histology and Embryology, Semmelweis University Budapest, Tűzoltó u. 58., Budapest, 1094, Hungary
| | - Gábor Petővári
- Department of Pathology and Experimental Cancer Research, Semmelweis University Budapest, Üllői út 26., Budapest, 1085, Hungary
| | - Alexandra Pop
- Department of Anatomy, Histology and Embryology, Semmelweis University Budapest, Tűzoltó u. 58., Budapest, 1094, Hungary
| | - Zsófia Erdei
- Department of Anatomy, Histology and Embryology, Semmelweis University Budapest, Tűzoltó u. 58., Budapest, 1094, Hungary
| | - Anna Sebestyén
- Department of Pathology and Experimental Cancer Research, Semmelweis University Budapest, Üllői út 26., Budapest, 1085, Hungary
| | - Anna L Kiss
- Department of Anatomy, Histology and Embryology, Semmelweis University Budapest, Tűzoltó u. 58., Budapest, 1094, Hungary
| |
Collapse
|
4
|
Yan C, Jin Y. Silencing of long noncoding RNA MIAT inhibits the viability and proliferation of breast cancer cells by promoting miR-378a-5p expression. Open Med (Wars) 2023; 18:20230676. [PMID: 37025425 PMCID: PMC10071813 DOI: 10.1515/med-2023-0676] [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: 05/24/2022] [Revised: 01/10/2023] [Accepted: 02/06/2023] [Indexed: 04/05/2023] Open
Abstract
Myocardial infarction–associated transcript (MIAT) is a long noncoding RNA that plays a critical role in a variety of diseases. Accordingly, this study probed into the possible interaction mechanism between MIAT and miR-378a-5p in breast cancer. Concretely, MIAT and miR-378a-5p expressions in breast cancer tissues and cells were measured. After transfection with siMIAT and miR-378a-5p inhibitor, the viability and proliferation of breast cancer cells were examined by cell counting kit-8 and colony formation assays. The expressions of apoptosis-related proteins were detected. According to the results, MIAT was highly expressed in breast cancer tissues and cells. MIAT silencing could decrease Bcl-2 expression, viability, and proliferation of breast cancer cells and increase the expressions of cleaved caspase-3 and Bax. MIAT and miR-378a-5p could directly bind to each other, and MIAT silencing promoted the expression of miR-378a-5p. miR-378a-5p expression was low in breast cancer tissues. The miR-378a-5p inhibitor enhanced the viability and proliferation of breast cancer cells and partially reversed the effects of MIAT silencing on the breast cancer cells. In conclusion, MIAT silencing inhibits the viability and proliferation of breast cancer cells by promoting miR-378a-5p, indicating the potential of MIAT as a new target for the treatment of breast cancer.
Collapse
Affiliation(s)
- Chao Yan
- Medical Laboratory, The Affiliated Huai’an Hospital of Xuzhou Medical University and The Second People’s Hospital of Huai’an, Huai’an 223003, Jiangsu, China
| | - Yue Jin
- Medical Laboratory, The Affiliated Huai’an Hospital of Xuzhou Medical University and The Second People’s Hospital of Huai’an, No. 62, Huaihai South Road, Qingjiangpu District, Huai’an 223003, Jiangsu, China
| |
Collapse
|
5
|
Proteome integral solubility alteration high-throughput proteomics assay identifies Collectin-12 as a non-apoptotic microglial caspase-3 substrate. Cell Death Dis 2023; 14:192. [PMID: 36906641 PMCID: PMC10008626 DOI: 10.1038/s41419-023-05714-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 02/23/2023] [Accepted: 02/27/2023] [Indexed: 03/13/2023]
Abstract
Caspases are a family of proteins mostly known for their role in the activation of the apoptotic pathway leading to cell death. In the last decade, caspases have been found to fulfill other tasks regulating the cell phenotype independently to cell death. Microglia are the immune cells of the brain responsible for the maintenance of physiological brain functions but can also be involved in disease progression when overactivated. We have previously described non-apoptotic roles of caspase-3 (CASP3) in the regulation of the inflammatory phenotype of microglial cells or pro-tumoral activation in the context of brain tumors. CASP3 can regulate protein functions by cleavage of their target and therefore could have multiple substrates. So far, identification of CASP3 substrates has been performed mostly in apoptotic conditions where CASP3 activity is highly upregulated and these approaches do not have the capacity to uncover CASP3 substrates at the physiological level. In our study, we aim at discovering novel substrates of CASP3 involved in the normal regulation of the cell. We used an unconventional approach by chemically reducing the basal level CASP3-like activity (by DEVD-fmk treatment) coupled to a Mass Spectrometry screen (PISA) to identify proteins with different soluble amounts, and consequently, non-cleaved proteins in microglia cells. PISA assay identified several proteins with significant change in their solubility after DEVD-fmk treatment, including a few already known CASP3 substrates which validated our approach. Among them, we focused on the Collectin-12 (COLEC12 or CL-P1) transmembrane receptor and uncovered a potential role for CASP3 cleavage of COLEC12 in the regulation of the phagocytic capacity of microglial cells. Taken together, these findings suggest a new way to uncover non-apoptotic substrates of CASP3 important for the modulation of microglia cell physiology.
Collapse
|
6
|
Traumatic Brain Injury Induces Microglial and Caspase3 Activation in the Retina. Int J Mol Sci 2023; 24:ijms24054451. [PMID: 36901880 PMCID: PMC10003323 DOI: 10.3390/ijms24054451] [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: 12/31/2022] [Revised: 02/18/2023] [Accepted: 02/22/2023] [Indexed: 03/05/2023] Open
Abstract
Traumatic brain injury (TBI) is among the main causes of sudden death after head trauma. These injuries can result in severe degeneration and neuronal cell death in the CNS, including the retina, which is a crucial part of the brain responsible for perceiving and transmitting visual information. The long-term effects of mild-repetitive TBI (rmTBI) are far less studied thus far, even though damage induced by repetitive injuries occurring in the brain is more common, especially amongst athletes. rmTBI can also have a detrimental effect on the retina and the pathophysiology of these injuries is likely to differ from severe TBI (sTBI) retinal injury. Here, we show how rmTBI and sTBI can differentially affect the retina. Our results indicate an increase in the number of activated microglial cells and Caspase3-positive cells in the retina in both traumatic models, suggesting a rise in the level of inflammation and cell death after TBI. The pattern of microglial activation appears distributed and widespread but differs amongst the various retinal layers. sTBI induced microglial activation in both the superficial and deep retinal layers. In contrast to sTBI, no significant change occurred following the repetitive mild injury in the superficial layer, only the deep layer (spanning from the inner nuclear layer to the outer plexiform layer) shows microglial activation. This difference suggests that alternate response mechanisms play a role in the case of the different TBI incidents. The Caspase3 activation pattern showed a uniform increase in both the superficial and deep layers of the retina. This suggests a different action in the course of the disease in sTBI and rmTBI models and points to the need for new diagnostic procedures. Our present results suggest that the retina might serve as such a model of head injuries since the retinal tissue reacts to both forms of TBI and is the most accessible part of the human brain.
Collapse
|
7
|
Gomes FDC, Santos IBF, Stephani CM, Ferrari MDFR, Galvis-Alonso OY, Goloni-Bertollo EM, Melo-Neto JSD, Pavarino ÉC. Vitamin D3 supplementation may attenuate morphological and molecular abnormalities of the olfactory bulb in a mouse model of Down syndrome. Tissue Cell 2022; 78:101898. [DOI: 10.1016/j.tice.2022.101898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 08/12/2022] [Accepted: 08/13/2022] [Indexed: 11/28/2022]
|
8
|
Lu SZ, Wu Y, Guo YS, Liang PZ, Yin S, Yin YQ, Zhang XL, Liu YF, Wang HY, Xiao YC, Liang XM, Zhou JW. Inhibition of astrocytic DRD2 suppresses CNS inflammation in an animal model of multiple sclerosis. J Exp Med 2022; 219:213362. [PMID: 35877595 PMCID: PMC9350686 DOI: 10.1084/jem.20210998] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Revised: 12/10/2021] [Accepted: 06/08/2022] [Indexed: 01/27/2023] Open
Abstract
Astrocyte activation is associated with progressive inflammatory demyelination in multiple sclerosis (MS). The molecular mechanisms underlying astrocyte activation remain incompletely understood. Recent studies have suggested that classical neurotransmitter receptors are implicated in the modulation of brain innate immunity. We investigated the role of dopamine signaling in the process of astrocyte activation. Here, we show the upregulation of dopamine D2 receptor (DRD2) in reactive astrocytes in MS brain and noncanonical role of astrocytic DRD2 in MS pathogenesis. Mice deficient in astrocytic Drd2 exhibit a remarkable suppression of reactive astrocytes and amelioration of experimental autoimmune encephalomyelitis (EAE). Mechanistically, DRD2 regulates the expression of 6-pyruvoyl-tetrahydropterin synthase, which modulates NF-κB activity through protein kinase C-δ. Pharmacological blockade of astrocytic DRD2 with a DRD2 antagonist dehydrocorybulbine remarkably inhibits the inflammatory response in mice lacking neuronal Drd2. Together, our findings reveal previously an uncharted role for DRD2 in astrocyte activation during EAE-associated CNS inflammation. Its therapeutic inhibition may provide a potent lever to alleviate autoimmune diseases.
Collapse
Affiliation(s)
- Shen-zhao Lu
- Institute of Neuroscience, State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, China
| | - Yue Wu
- Institute of Neuroscience, State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, China
| | - Yong-shun Guo
- Institute of Neuroscience, State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, China
| | - Pei-zhou Liang
- Institute of Neuroscience, State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, China
| | - Shu Yin
- Institute of Neuroscience, State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, China
| | - Yan-qing Yin
- Institute of Neuroscience, State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, China
| | - Xiu-li Zhang
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
| | - Yan-Fang Liu
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
| | - Hong-yan Wang
- State Key Laboratory of Cell Biology, Key Laboratory of Systems Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Innovation Center for Cell Signaling Network, Shanghai, China
| | - Yi-chuan Xiao
- The Key Laboratory of Stem Cell Biology, Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Xin-miao Liang
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China,Xin-miao Liang:
| | - Jia-wei Zhou
- Institute of Neuroscience, State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, China,School of Future Technology, University of Chinese Academy of Sciences, Beijing, China,Shanghai Center for Brain Science and Brain-Inspired Intelligence Technology, Shanghai, China,Co-innovation Center of Neuroregeneration, School of Medicine, Nantong University, Nantong, Jiangsu, China,Correspondence to Jia-wei Zho:
| |
Collapse
|
9
|
Hui CW, Wu WC, Leung SO. Interleukins 4 and 21 Protect Anti-IgM Induced Cell Death in Ramos B Cells: Implication for Autoimmune Diseases. Front Immunol 2022; 13:919854. [PMID: 35911775 PMCID: PMC9326153 DOI: 10.3389/fimmu.2022.919854] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 06/20/2022] [Indexed: 01/11/2023] Open
Abstract
Interleukins 4 (IL-4) and 21 (IL-21) belong to the common gamma chain cytokine family which are highly involved in the progression of autoimmune diseases. While IL-4 is well known to be involved in the suppression of apoptosis of autoreactive B cells, the role played by IL-21 remains unclear. In the current study, we activated the human Burkitt’s lymphoma Ramos B cells with anti-IgM to mimic B cell hyperactivation observed in patients of autoimmune diseases. Consistent with other reported findings, anti-IgM led to the downregulation of proteins involved in B cell survival and proliferation, as well as the activation of caspase 3 activity and DNA damage, resulting in apoptotic cell death after 48-hour treatment. Although both IL-4 and IL-21 reversed anti-IgM-induced apoptosis and cell cycle arrest, they did so via different mechanisms: while IL-4 could directly suppress anti-IgM-induced caspase 3 activation and marker indicative of DNA damage, IL-21 could induce B cell proliferation in the presence of anti-IgM. Importantly, IL-21 also suppressed activation induced cell death in human primary B cells. Pre-treatment with clinically validated JAK inhibitors completely reversed the effects of IL-4 and IL-21 to rescue anti-IgM induced cell death and DNA damage. The results indicate the underlying mechanisms of how IL-4 and IL-21 differentially promote survival of hyperactivated B cells and provide hints to treat autoimmune diseases.
Collapse
|
10
|
Vyas P, Tulsawani R, Vohora D. Dual Targeting by Inhibition of Phosphoinositide-3-Kinase and Mammalian Target of Rapamycin Attenuates the Neuroinflammatory Responses in Murine Hippocampal Cells and Seizures in C57BL/6 Mice. Front Immunol 2021; 12:739452. [PMID: 34887852 PMCID: PMC8650161 DOI: 10.3389/fimmu.2021.739452] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2021] [Accepted: 10/04/2021] [Indexed: 11/25/2022] Open
Abstract
Emerging evidence suggests the association of seizures and inflammation; however, underlying cell signaling mechanisms are still not fully understood. Overactivation of phosphoinositide-3-kinases is associated with both neuroinflammation and seizures. Herein, we speculate the PI3K/Akt/mTOR pathway as a promising therapeutic target for neuroinflammation-mediated seizures and associated neurodegeneration. Firstly, we cultured HT22 cells for detection of the downstream cell signaling events activated in a lipopolysaccharide (LPS)-primed pilocarpine (PILO) model. We then evaluated the effects of 7-day treatment of buparlisib (PI3K inhibitor, 25 mg/kg p.o.), dactolisib (PI3K/mTOR inhibitor, 25 mg/kg p.o.), and rapamycin (mTORC1 inhibitor, 10 mg/kg p.o.) in an LPS-primed PILO model of seizures in C57BL/6 mice. LPS priming resulted in enhanced seizure severity and reduced latency. Buparlisib and dactolisib, but not rapamycin, prolonged latency to seizures and reduced neuronal loss, while all drugs attenuated seizure severity. Buparlisib and dactolisib further reduced cellular redox, mitochondrial membrane potential, cleaved caspase-3 and p53, nuclear integrity, and attenuated NF-κB, IL-1β, IL-6, TNF-α, and TGF-β1 and TGF-β2 signaling both in vitro and in vivo post-PILO and LPS+PILO inductions; however, rapamycin mitigated the same only in the PILO model. Both drugs protected against neuronal cell death demonstrating the contribution of this pathway in the seizure-induced neuronal pyknosis; however, rapamycin showed resistance in a combination model. Furthermore, LPS and PILO exposure enhanced pAkt/Akt and phospho-p70S6/total-p70S6 kinase activity, while buparlisib and dactolisib, but not rapamycin, could reduce it in a combination model. Partial rapamycin resistance was observed possibly due to the reactivation of the pathway by a functionally different complex of mTOR, i.e., mTORC2. Our study substantiated the plausible involvement of PI3K-mediated apoptotic and inflammatory pathways in LPS-primed PILO-induced seizures and provides evidence that its modulation constitutes an anti-inflammatory mechanism by which seizure inhibitory effects are observed. We showed dual inhibition by dactolisib as a promising approach. Targeting this pathway at two nodes at a time may provide new avenues for antiseizure therapies.
Collapse
Affiliation(s)
- Preeti Vyas
- Department of Pharmacology, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India
| | - Rajkumar Tulsawani
- Defense Institute of Physiology & Allied Science, Defense Research and Development Organization, New Delhi, India
| | - Divya Vohora
- Department of Pharmacology, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India
| |
Collapse
|
11
|
Okuzono Y, Sakuma H, Miyakawa S, Ifuku M, Lee J, Das D, Banerjee A, Zhao Y, Yamamoto K, Ando T, Sato S. Reduced TREM2 activation in microglia of patients with Alzheimer's disease. FEBS Open Bio 2021; 11:3063-3080. [PMID: 34523252 PMCID: PMC8564098 DOI: 10.1002/2211-5463.13300] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 08/27/2021] [Accepted: 09/13/2021] [Indexed: 12/13/2022] Open
Abstract
Loss-of-function variants of triggering receptor expressed on myeloid cells 2 (TREM2) increase the risk of developing Alzheimer's disease (AD). The mechanism through which TREM2 contributes to the disease (TREM2 activation vs inactivation) is largely unknown. Here, we analyzed changes in a gene set downstream of TREM2 to determine whether TREM2 signaling is modified by AD progression. We generated an anti-human TREM2 agonistic antibody and defined TREM2 activation in terms of the downstream expression changes induced by this antibody in microglia developed from human induced pluripotent stem cells (iPSC). Differentially expressed genes (DEGs) following TREM2 activation were compared with the gene set extracted from microglial single nuclear RNA sequencing data of patients with AD, using gene set enrichment analysis. We isolated an anti-TREM2-specific agonistic antibody, Hyb87, from anti-human TREM2 antibodies generated using binding and agonism assays, which helped us identify 300 upregulated and 251 downregulated DEGs. Pathway enrichment analysis suggested that TREM2 activation may be associated with Th2-related pathways. TREM2 activation was lower in AD microglia than in microglia from healthy subjects or patients with mild cognitive impairment. TREM2 activation also showed a significant negative correlation with disease progression. Pathway enrichment analysis of DEGs controlled by TREM2 activity indicated that TREM2 activation in AD may lead to anti-apoptotic signaling, immune response, and cytoskeletal changes in the microglia. We showed that TREM2 activation decreases with AD progression, in support of a protective role of TREM2 activation in AD. In addition, the agonistic anti-TREM2 antibody can be used to identify TREM2 activation state in AD microglia.
Collapse
Affiliation(s)
- Yuumi Okuzono
- Immune Cell Engineered TherapeuticsResearch, Takeda Pharmaceutical Company LimitedFujisawaJapan
| | - Hiroyuki Sakuma
- Neuroscience Drug Discovery UnitResearch, Takeda Pharmaceutical Company LimitedFujisawaJapan
| | - Shuuichi Miyakawa
- Immune Cell Engineered TherapeuticsResearch, Takeda Pharmaceutical Company LimitedFujisawaJapan
| | - Masataka Ifuku
- Immune Cell Engineered TherapeuticsResearch, Takeda Pharmaceutical Company LimitedFujisawaJapan
| | - Jonghun Lee
- Computational BiologyResearch, Takeda Pharmaceutical Company LimitedFujisawaJapan
| | - Debashree Das
- Early Target DiscoveryResearch, Takeda California, Inc.San DiegoCAUSA
| | - Antara Banerjee
- GI ImmunologyResearch, Takeda California, Inc.San DiegoCAUSA
| | - Yang Zhao
- Computational BiologyResearch, Takeda Pharmaceutical Company LimitedFujisawaJapan
| | - Koji Yamamoto
- Computational BiologyResearch, Takeda Pharmaceutical Company LimitedFujisawaJapan
| | - Tatsuya Ando
- Computational BiologyResearch, Takeda Pharmaceutical Company LimitedFujisawaJapan
| | - Shuji Sato
- Neuroscience Drug Discovery UnitResearch, Takeda Pharmaceutical Company LimitedFujisawaJapan
| |
Collapse
|
12
|
Balogh B, Szarka G, Tengölics ÁJ, Hoffmann G, Völgyi B, Kovács-Öller T. LED-Induced Microglial Activation and Rise in Caspase3 Suggest a Reorganization in the Retina. Int J Mol Sci 2021; 22:ijms221910418. [PMID: 34638759 PMCID: PMC8508983 DOI: 10.3390/ijms221910418] [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: 08/06/2021] [Revised: 09/21/2021] [Accepted: 09/23/2021] [Indexed: 11/16/2022] Open
Abstract
Vision is our primary sense as the human eye is the gateway for more than 65% of information reaching the human brain. Today's increased exposure to different wavelengths and intensities of light from light emitting diode (LED) sources could induce retinal degeneration and accompanying neuronal cell death. Damage induced by chronic phototoxic reactions occurring in the retina accumulates over years and it has been suggested as being responsible for the etiology of many debilitating ocular conditions. In this work, we examined how LED stimulation affects vision by monitoring changes in the expression of death and survival factors as well as microglial activation in LED-induced damage (LID) of the retinal tissue. We found an LED-exposure-induced increase in the mRNA levels of major apoptosis-related markers BAX, Bcl-2, and Caspase-3 and accompanying widespread microglial and Caspase-3 activation. Everyday LED light exposure was accounted for in all the described changes in the retinal tissue of mice in this study, indicating that overuse of non-filtered direct LED light can have detrimental effects on the human retina as well.
Collapse
Affiliation(s)
- Boglárka Balogh
- János Szentágothai Research Centre, University of Pécs, 7624 Pécs, Hungary; (B.B.); (G.S.); (Á.J.T.); (G.H.); (B.V.)
- Retinal Electrical Synapses Research Group, National Brain Research Program (NAP 2.0), Hungarian Academy of Sciences, 1051 Budapest, Hungary
- Institute of Biology, Faculty of Sciences, University of Pécs, 7624 Pécs, Hungary
| | - Gergely Szarka
- János Szentágothai Research Centre, University of Pécs, 7624 Pécs, Hungary; (B.B.); (G.S.); (Á.J.T.); (G.H.); (B.V.)
- Retinal Electrical Synapses Research Group, National Brain Research Program (NAP 2.0), Hungarian Academy of Sciences, 1051 Budapest, Hungary
- Institute of Biology, Faculty of Sciences, University of Pécs, 7624 Pécs, Hungary
| | - Ádám J. Tengölics
- János Szentágothai Research Centre, University of Pécs, 7624 Pécs, Hungary; (B.B.); (G.S.); (Á.J.T.); (G.H.); (B.V.)
- Retinal Electrical Synapses Research Group, National Brain Research Program (NAP 2.0), Hungarian Academy of Sciences, 1051 Budapest, Hungary
- Institute of Biology, Faculty of Sciences, University of Pécs, 7624 Pécs, Hungary
| | - Gyula Hoffmann
- János Szentágothai Research Centre, University of Pécs, 7624 Pécs, Hungary; (B.B.); (G.S.); (Á.J.T.); (G.H.); (B.V.)
- Retinal Electrical Synapses Research Group, National Brain Research Program (NAP 2.0), Hungarian Academy of Sciences, 1051 Budapest, Hungary
- Institute of Biology, Faculty of Sciences, University of Pécs, 7624 Pécs, Hungary
| | - Béla Völgyi
- János Szentágothai Research Centre, University of Pécs, 7624 Pécs, Hungary; (B.B.); (G.S.); (Á.J.T.); (G.H.); (B.V.)
- Retinal Electrical Synapses Research Group, National Brain Research Program (NAP 2.0), Hungarian Academy of Sciences, 1051 Budapest, Hungary
- Institute of Biology, Faculty of Sciences, University of Pécs, 7624 Pécs, Hungary
- Medical School, University of Pécs, 7624 Pécs, Hungary
| | - Tamás Kovács-Öller
- János Szentágothai Research Centre, University of Pécs, 7624 Pécs, Hungary; (B.B.); (G.S.); (Á.J.T.); (G.H.); (B.V.)
- Retinal Electrical Synapses Research Group, National Brain Research Program (NAP 2.0), Hungarian Academy of Sciences, 1051 Budapest, Hungary
- Institute of Biology, Faculty of Sciences, University of Pécs, 7624 Pécs, Hungary
- Medical School, University of Pécs, 7624 Pécs, Hungary
- Correspondence:
| |
Collapse
|
13
|
Li P, Zhu K, Mo Y, Deng X, Jiang X, Shi L, Guo C, Zhang W, Zeng Z, Li G, Xiong W, Zhang S, Gong Z. Research Progress of circRNAs in Head and Neck Cancers. Front Oncol 2021; 11:616202. [PMID: 33996542 PMCID: PMC8117014 DOI: 10.3389/fonc.2021.616202] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Accepted: 04/07/2021] [Indexed: 12/13/2022] Open
Abstract
Circular RNAs (circRNAs) are a novel type of non-coding RNAs. Because of their characteristics of a closed loop structure, disease- and tissue-specificity, and high conservation and stability, circRNAs have the potential to be biomarkers for disease diagnosis. Head and neck cancers are one of the most common malignant tumors with high incidence rates globally. Affected patients are often diagnosed at the advanced stage with poor prognosis, owing to the concealment of anatomic sites. The characteristics, functions, and specific mechanisms of circRNAs in head and neck cancers are increasingly being discovered, and they have important clinical significance for the early diagnosis, treatment, and prognosis evaluation of patients with cancer. In this study, the generation, characteristics, and functions of circRNAs, along with their regulatory mechanisms in head and neck cancers have been summarized. We report that circRNAs interact with molecules such as transcription and growth factors to influence specific pathways involved in tumorigenesis. We conclude that circRNAs have an important role to play in the proliferation, invasion, metastasis, energy and substance metabolism, and treatment resistance in cancers.
Collapse
Affiliation(s)
- Panchun Li
- Department of Oral and Maxillofacial Surgery, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Kunjie Zhu
- Department of Head and Neck Surgery, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
| | - Yongzhen Mo
- NHC Key Laboratory of Carcinogenesis, Cancer Research Institute and School of Basic Medical Sciences, Central South University, Changsha, China
| | - Xiangying Deng
- NHC Key Laboratory of Carcinogenesis, Cancer Research Institute and School of Basic Medical Sciences, Central South University, Changsha, China
| | - Xianjie Jiang
- NHC Key Laboratory of Carcinogenesis, Cancer Research Institute and School of Basic Medical Sciences, Central South University, Changsha, China
| | - Lei Shi
- Department of Pathology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Can Guo
- NHC Key Laboratory of Carcinogenesis, Cancer Research Institute and School of Basic Medical Sciences, Central South University, Changsha, China
| | - Wenling Zhang
- NHC Key Laboratory of Carcinogenesis, Cancer Research Institute and School of Basic Medical Sciences, Central South University, Changsha, China
| | - Zhaoyang Zeng
- NHC Key Laboratory of Carcinogenesis, Cancer Research Institute and School of Basic Medical Sciences, Central South University, Changsha, China
| | - Guiyuan Li
- NHC Key Laboratory of Carcinogenesis, Cancer Research Institute and School of Basic Medical Sciences, Central South University, Changsha, China
| | - Wei Xiong
- NHC Key Laboratory of Carcinogenesis, Cancer Research Institute and School of Basic Medical Sciences, Central South University, Changsha, China
| | - Shanshan Zhang
- Department of Stomatology, The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Xiangya Hospital, Central South University, Changsha, China
| | - Zhaojian Gong
- Department of Oral and Maxillofacial Surgery, The Second Xiangya Hospital, Central South University, Changsha, China
| |
Collapse
|
14
|
Salman MM, Al-Obaidi Z, Kitchen P, Loreto A, Bill RM, Wade-Martins R. Advances in Applying Computer-Aided Drug Design for Neurodegenerative Diseases. Int J Mol Sci 2021; 22:4688. [PMID: 33925236 PMCID: PMC8124449 DOI: 10.3390/ijms22094688] [Citation(s) in RCA: 58] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 04/26/2021] [Accepted: 04/26/2021] [Indexed: 12/11/2022] Open
Abstract
Neurodegenerative diseases (NDs) including Alzheimer's disease, Parkinson's disease, amyotrophic lateral sclerosis, and Huntington's disease are incurable and affect millions of people worldwide. The development of treatments for this unmet clinical need is a major global research challenge. Computer-aided drug design (CADD) methods minimize the huge number of ligands that could be screened in biological assays, reducing the cost, time, and effort required to develop new drugs. In this review, we provide an introduction to CADD and examine the progress in applying CADD and other molecular docking studies to NDs. We provide an updated overview of potential therapeutic targets for various NDs and discuss some of the advantages and disadvantages of these tools.
Collapse
Affiliation(s)
- Mootaz M. Salman
- Department of Physiology, Anatomy and Genetics, University of Oxford, Parks Road, Oxford OX1 3QX, UK;
- Oxford Parkinson’s Disease Centre, University of Oxford, South Parks Road, Oxford OX1 3QX, UK
| | - Zaid Al-Obaidi
- Department of Pharmaceutical Chemistry, College of Pharmacy, University of Alkafeel, Najaf 54001, Iraq;
- Department of Chemistry and Biochemistry, College of Medicine, University of Kerbala, Karbala 56001, Iraq
| | - Philip Kitchen
- School of Biosciences, College of Health and Life Sciences, Aston University, Aston Triangle, Birmingham B4 7ET, UK; (P.K.); (R.M.B.)
| | - Andrea Loreto
- Department of Physiology, Anatomy and Genetics, University of Oxford, Parks Road, Oxford OX1 3QX, UK;
- John Van Geest Centre for Brain Repair, University of Cambridge, Cambridge CB2 0PY, UK
| | - Roslyn M. Bill
- School of Biosciences, College of Health and Life Sciences, Aston University, Aston Triangle, Birmingham B4 7ET, UK; (P.K.); (R.M.B.)
| | - Richard Wade-Martins
- Department of Physiology, Anatomy and Genetics, University of Oxford, Parks Road, Oxford OX1 3QX, UK;
- Oxford Parkinson’s Disease Centre, University of Oxford, South Parks Road, Oxford OX1 3QX, UK
| |
Collapse
|
15
|
Xu B, Li L, Zhang W, Li Y, Wang MR, Liu JC, Dong KY, Fabian ID, Qiu D, Li CR, Xiang YM. Effect of Andrographis paniculata polysaccharide on human retinoblastoma Y79 cell proliferation and apoptosis. Int J Ophthalmol 2021; 14:497-503. [PMID: 33875938 DOI: 10.18240/ijo.2021.04.03] [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: 01/08/2020] [Accepted: 02/19/2021] [Indexed: 11/23/2022] Open
Abstract
AIM To explore the effect of the Andrographis paniculata (A. paniculata) polysaccharide on the proliferation and apoptosis of human retinoblastoma (RB) Y79 cells and its mechanism. METHODS The refined A. paniculata polysaccharide was obtained using techniques such as water extraction, ethanol precipitation, and decompression concentration. The inhibition effect of the A. paniculata polysaccharide on the proliferation of Y79 cells was detected by cell proliferation assay. Flow cytometry was used for the detection of cell apoptosis rate and cycle change. Real-time qunatitative polymerase chain reaction (RT qPCR)and Western blotting were used to detect the expression of cell apoptosis signal pathway-related factors (caspase-3, caspase-8, and caspase-9) and cell cycle signal pathway-related factors (CDK1 and cyclinB1) at the transcriptional and translational levels. RESULTS Infrared and ultraviolet spectrum scanning showed that the extracted drug was a polysaccharide with high purity. After being treated with different concentrations of A. paniculata polysaccharide for different periods of time, the Y79 cells showed different degrees of proliferation inhibition. Flow cytometric observations showed that the cell apoptosis rate and the proportion of cells blocked in the G2/M phase were significantly increased after A. paniculata polysaccharide treatment. Further analysis revealed that the mRNA and protein expression of caspase-3, caspase-8, and caspase-9 in the A. paniculata polysaccharide treatment groups increased significantly compared with that in the control groups, while the expression of CDK1 and cyclinB1 decreased significantly. CONCLUSION The A. paniculata polysaccharide could inhibit the proliferation and induce apoptosis of Y79 cells. Its possible mechanism is via the upregulation of caspase-3, caspase-8, and caspase-9 expression in the cell apoptotic signaling pathway and the downregulation of CDK1 and cyclinB1 expression in the cell cycle signaling pathway.
Collapse
Affiliation(s)
- Bing Xu
- Department of Ophthalmology, Fuling Central Hospital, Chongqing 408000, China.,Clinical Medicine, Dali University, Dali 671000, Yunnan Province, China
| | - Lei Li
- Department of Ophthalmology, the First Affiliated Hospital, Dali University, Dali 671000, Yunnan Province, China
| | - Wei Zhang
- Department of Ophthalmology, Fuling Central Hospital, Chongqing 408000, China
| | - Yue Li
- Department of Pathology, Fuling Central Hospital, Chongqing 408000, China
| | - Mao-Ren Wang
- Clinical Medicine, Dali University, Dali 671000, Yunnan Province, China
| | - Jing-Chen Liu
- Clinical Medicine, Dali University, Dali 671000, Yunnan Province, China
| | - Kai-Ye Dong
- Department of Ophthalmology, the First Affiliated Hospital, Dali University, Dali 671000, Yunnan Province, China
| | - Ido Didi Fabian
- Goldschleger Eye Institute, Sheba Medical Center, Tel Hashomer, Tel-Aviv University, Tel-Aviv 52621, Israel
| | - Dong Qiu
- Clinical Medicine, Dali University, Dali 671000, Yunnan Province, China
| | - Cai-Rui Li
- Department of Ophthalmology, the First Affiliated Hospital, Dali University, Dali 671000, Yunnan Province, China
| | - Yi-Min Xiang
- Department of Ophthalmology, Fuling Central Hospital, Chongqing 408000, China
| |
Collapse
|
16
|
Rodríguez-Gómez JA, Kavanagh E, Engskog-Vlachos P, Engskog MK, Herrera AJ, Espinosa-Oliva AM, Joseph B, Hajji N, Venero JL, Burguillos MA. Microglia: Agents of the CNS Pro-Inflammatory Response. Cells 2020; 9:E1717. [PMID: 32709045 PMCID: PMC7407646 DOI: 10.3390/cells9071717] [Citation(s) in RCA: 150] [Impact Index Per Article: 37.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Revised: 07/14/2020] [Accepted: 07/15/2020] [Indexed: 12/21/2022] Open
Abstract
The pro-inflammatory immune response driven by microglia is a key contributor to the pathogenesis of several neurodegenerative diseases. Though the research of microglia spans over a century, the last two decades have increased our understanding exponentially. Here, we discuss the phenotypic transformation from homeostatic microglia towards reactive microglia, initiated by specific ligand binding to pattern recognition receptors including toll-like receptor-4 (TLR4) or triggering receptors expressed on myeloid cells-2 (TREM2), as well as pro-inflammatory signaling pathways triggered such as the caspase-mediated immune response. Additionally, new research disciplines such as epigenetics and immunometabolism have provided us with a more holistic view of how changes in DNA methylation, microRNAs, and the metabolome may influence the pro-inflammatory response. This review aimed to discuss our current knowledge of pro-inflammatory microglia from different angles, including recent research highlights such as the role of exosomes in spreading neuroinflammation and emerging techniques in microglia research including positron emission tomography (PET) scanning and the use of human microglia generated from induced pluripotent stem cells (iPSCs). Finally, we also discuss current thoughts on the impact of pro-inflammatory microglia in neurodegenerative diseases.
Collapse
Affiliation(s)
- José A. Rodríguez-Gómez
- Institute of Biomedicine of Seville (IBIS)-Hospital Universitario Virgen del Rocío/CSIC/University of Seville, 41012 Seville, Spain; (J.A.R.-G.); (A.J.H.); (A.M.E.-O.); (J.L.V.)
- Department of Medical Physiology and Biophysics, Faculty of Medicine, University of Seville, 41009 Sevilla, Spain
| | - Edel Kavanagh
- Department of Biochemistry and Molecular Biology, Faculty of Pharmacy, University of Seville, 41012 Seville, Spain;
| | - Pinelopi Engskog-Vlachos
- Institute of Environmental Medicine, Toxicology Unit, Karolinska Institute, 17177 Stockholm, Sweden; (P.E.-V.); (B.J.)
| | - Mikael K.R. Engskog
- Department of Medicinal Chemistry, Analytical Pharmaceutical Chemistry, Uppsala University, 751 23 Uppsala, Sweden;
| | - Antonio J. Herrera
- Institute of Biomedicine of Seville (IBIS)-Hospital Universitario Virgen del Rocío/CSIC/University of Seville, 41012 Seville, Spain; (J.A.R.-G.); (A.J.H.); (A.M.E.-O.); (J.L.V.)
- Department of Biochemistry and Molecular Biology, Faculty of Pharmacy, University of Seville, 41012 Seville, Spain;
| | - Ana M. Espinosa-Oliva
- Institute of Biomedicine of Seville (IBIS)-Hospital Universitario Virgen del Rocío/CSIC/University of Seville, 41012 Seville, Spain; (J.A.R.-G.); (A.J.H.); (A.M.E.-O.); (J.L.V.)
- Department of Biochemistry and Molecular Biology, Faculty of Pharmacy, University of Seville, 41012 Seville, Spain;
| | - Bertrand Joseph
- Institute of Environmental Medicine, Toxicology Unit, Karolinska Institute, 17177 Stockholm, Sweden; (P.E.-V.); (B.J.)
| | - Nabil Hajji
- Division of Brain Sciences, The John Fulcher Molecular Neuro-Oncology Laboratory, Imperial College London, London W12 ONN, UK;
| | - José L. Venero
- Institute of Biomedicine of Seville (IBIS)-Hospital Universitario Virgen del Rocío/CSIC/University of Seville, 41012 Seville, Spain; (J.A.R.-G.); (A.J.H.); (A.M.E.-O.); (J.L.V.)
- Department of Biochemistry and Molecular Biology, Faculty of Pharmacy, University of Seville, 41012 Seville, Spain;
| | - Miguel A. Burguillos
- Institute of Biomedicine of Seville (IBIS)-Hospital Universitario Virgen del Rocío/CSIC/University of Seville, 41012 Seville, Spain; (J.A.R.-G.); (A.J.H.); (A.M.E.-O.); (J.L.V.)
- Department of Biochemistry and Molecular Biology, Faculty of Pharmacy, University of Seville, 41012 Seville, Spain;
| |
Collapse
|
17
|
Heilig R, Dilucca M, Boucher D, Chen KW, Hancz D, Demarco B, Shkarina K, Broz P. Caspase-1 cleaves Bid to release mitochondrial SMAC and drive secondary necrosis in the absence of GSDMD. Life Sci Alliance 2020; 3:3/6/e202000735. [PMID: 32345661 PMCID: PMC7190276 DOI: 10.26508/lsa.202000735] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 04/16/2020] [Accepted: 04/16/2020] [Indexed: 01/06/2023] Open
Abstract
Caspase-1 drives a lytic inflammatory cell death named pyroptosis by cleaving the pore-forming cell death executor gasdermin-D (GSDMD). Gsdmd deficiency, however, only delays cell lysis, indicating that caspase-1 controls alternative cell death pathways. Here, we show that in the absence of GSDMD, caspase-1 activates apoptotic initiator and executioner caspases and triggers a rapid progression into secondary necrosis. GSDMD-independent cell death required direct caspase-1-driven truncation of Bid and generation of caspase-3 p19/p12 by either caspase-8 or caspase-9. tBid-induced mitochondrial outer membrane permeabilization was also required to drive SMAC release and relieve inhibitor of apoptosis protein inhibition of caspase-3, thereby allowing caspase-3 auto-processing to the fully active p17/p12 form. Our data reveal that cell lysis in inflammasome-activated Gsdmd-deficient cells is caused by a synergistic effect of rapid caspase-1-driven activation of initiator caspases-8/-9 and Bid cleavage, resulting in an unusually fast activation of caspase-3 and immediate transition into secondary necrosis. This pathway might be advantageous for the host in counteracting pathogen-induced inhibition of GSDMD but also has implications for the use of GSDMD inhibitors in immune therapies for caspase-1-dependent inflammatory disease.
Collapse
Affiliation(s)
- Rosalie Heilig
- Department of Biochemistry, University of Lausanne, Epalinges, Switzerland
| | - Marisa Dilucca
- Department of Biochemistry, University of Lausanne, Epalinges, Switzerland
| | - Dave Boucher
- Department of Biochemistry, University of Lausanne, Epalinges, Switzerland
| | - Kaiwen W Chen
- Department of Biochemistry, University of Lausanne, Epalinges, Switzerland
| | - Dora Hancz
- Department of Biochemistry, University of Lausanne, Epalinges, Switzerland
| | - Benjamin Demarco
- Department of Biochemistry, University of Lausanne, Epalinges, Switzerland
| | - Kateryna Shkarina
- Department of Biochemistry, University of Lausanne, Epalinges, Switzerland
| | - Petr Broz
- Department of Biochemistry, University of Lausanne, Epalinges, Switzerland
| |
Collapse
|
18
|
Park DJ, Kang JB, Koh PO. Epigallocatechin gallate alleviates neuronal cell damage against focal cerebral ischemia in rats. J Vet Med Sci 2020; 82:639-645. [PMID: 32224555 PMCID: PMC7273602 DOI: 10.1292/jvms.19-0703] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Cerebral ischemia is a neurological disorder that causes permanent disability and is sometimes fatal. Epigallocatechin gallate (EGCG) is a natural polyphenol that exerts beneficial antioxidant and anti-inflammatory effects. The aim of this study was to investigate the neuroprotective effects of EGCG against cerebral ischemia. Middle cerebral artery occlusion was surgically initiated to induce focal cerebral ischemia in adult male rats. EGCG (50 mg/kg) or vehicle was intraperitoneally injected just prior to middle cerebral artery occlusion (MCAO) induction. Neuronal behavior tests were performed 24 hr after MCAO. Brain tissues were isolated to evaluate infarct volume, histological changes, apoptotic cell death, and caspase-3 and poly ADP-ribose polymerase (PARP) levels. MCAO injury led to serious functional neurological deficits and increased infarct volume. Moreover, it induced histopathological lesions and increased the numbers of terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL)-positive cells in the cerebral cortex. However, EGCG improved MCAO-induced neurological deficits and reduced infarct volume, alleviated histopathological changes, and decreased TUNEL-positive cells in the cerebral cortex of MCAO rats. Western blot analysis showed increases of caspase-3 and PARP expression levels in MCAO rats with vehicle, whereas EGCG administration alleviated these increases after MCAO injury. These results demonstrate that EGCG exerts a neuroprotective effect by regulating caspase-3 and PARP proteins during cerebral ischemia. In conclusion, we suggest that EGCG acts as a potent neuroprotective agent by modulating the apoptotic signaling pathway.
Collapse
Affiliation(s)
- Dong-Ju Park
- Department of Anatomy, College of Veterinary Medicine, Research Institute of Life Science, Gyeongsang National University, Jinju, 52828, South Korea
| | - Ju-Bin Kang
- Department of Anatomy, College of Veterinary Medicine, Research Institute of Life Science, Gyeongsang National University, Jinju, 52828, South Korea
| | - Phil-Ok Koh
- Department of Anatomy, College of Veterinary Medicine, Research Institute of Life Science, Gyeongsang National University, Jinju, 52828, South Korea
| |
Collapse
|
19
|
Bock FJ, Tait SWG. Mitochondria as multifaceted regulators of cell death. Nat Rev Mol Cell Biol 2020; 21:85-100. [PMID: 31636403 DOI: 10.1038/s41580-019-0173-8] [Citation(s) in RCA: 1146] [Impact Index Per Article: 286.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/30/2019] [Indexed: 12/12/2022]
Abstract
Through their many and varied metabolic functions, mitochondria power life. Paradoxically, mitochondria also have a central role in apoptotic cell death. Upon induction of mitochondrial apoptosis, mitochondrial outer membrane permeabilization (MOMP) usually commits a cell to die. Apoptotic signalling downstream of MOMP involves cytochrome c release from mitochondria and subsequent caspase activation. As such, targeting MOMP in order to manipulate cell death holds tremendous therapeutic potential across different diseases, including neurodegenerative diseases, autoimmune disorders and cancer. In this Review, we discuss new insights into how mitochondria regulate apoptotic cell death. Surprisingly, recent data demonstrate that besides eliciting caspase activation, MOMP engages various pro-inflammatory signalling functions. As we highlight, together with new findings demonstrating cell survival following MOMP, this pro-inflammatory role suggests that mitochondria-derived signalling downstream of pro-apoptotic cues may also have non-lethal functions. Finally, we discuss the importance and roles of mitochondria in other forms of regulated cell death, including necroptosis, ferroptosis and pyroptosis. Collectively, these new findings offer exciting, unexplored opportunities to target mitochondrial regulation of cell death for clinical benefit.
Collapse
Affiliation(s)
- Florian J Bock
- Cancer Research UK Beatson Institute, Institute of Cancer Sciences, University of Glasgow, Glasgow, UK
| | - Stephen W G Tait
- Cancer Research UK Beatson Institute, Institute of Cancer Sciences, University of Glasgow, Glasgow, UK.
| |
Collapse
|
20
|
Espinosa-Oliva AM, García-Revilla J, Alonso-Bellido IM, Burguillos MA. Brainiac Caspases: Beyond the Wall of Apoptosis. Front Cell Neurosci 2019; 13:500. [PMID: 31749689 PMCID: PMC6848387 DOI: 10.3389/fncel.2019.00500] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Accepted: 10/22/2019] [Indexed: 01/04/2023] Open
Abstract
For the last two decades, caspases, a family of cysteine-aspartic proteases, have evolved from being considered solely as regulators of apoptosis or inflammation to having a wider range of functions. In this mini review, we focus on the most recent “non-apoptotic” roles of caspases in the CNS, particularly in neurons, astrocytes and oligodendrocytes. Non-apoptotic caspase functions in microglia have already been reviewed extensively elsewhere. Here we discuss the involvement of caspases in the activation of the inflammasome, autophagy, and non-apoptotic forms of cell death such as necroptosis and pyroptosis. Also, we review the involvement of caspases in synapses and the processing of aggregates key to neurodegenerative diseases such as Parkinson’s, Alzheimer’s and Huntington’s diseases. Likewise, we mention the recently described involvement of caspases in mitochondrial biogenesis, which is a function independent of the enzymatic activity. We conclude discussing the relevance that “new” functions of caspases have in the CNS and the future of this field of research.
Collapse
Affiliation(s)
- Ana María Espinosa-Oliva
- Departamento de Bioquímica y Biología Molecular, Facultad de Farmacia, Universidad de Sevilla, and Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC, Seville, Spain
| | - Juan García-Revilla
- Departamento de Bioquímica y Biología Molecular, Facultad de Farmacia, Universidad de Sevilla, and Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC, Seville, Spain
| | - Isabel María Alonso-Bellido
- Departamento de Bioquímica y Biología Molecular, Facultad de Farmacia, Universidad de Sevilla, and Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC, Seville, Spain
| | - Miguel Angel Burguillos
- Departamento de Bioquímica y Biología Molecular, Facultad de Farmacia, Universidad de Sevilla, and Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC, Seville, Spain
| |
Collapse
|
21
|
RETRACTED: Long non-coding RNA Mirt2 prevents TNF-α-triggered inflammation via the repression of microRNA-101. Int Immunopharmacol 2019; 76:105878. [DOI: 10.1016/j.intimp.2019.105878] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 09/03/2019] [Accepted: 09/03/2019] [Indexed: 12/31/2022]
|
22
|
Song X, Li J, Wang Y, Zhou C, Zhang Z, Shen M, Xiang P, Zhang X, Zhao H, Yu L, Zuo L, Hu J. Clematichinenoside AR ameliorated spontaneous colitis in Il-10 -/- mice associated with improving the intestinal barrier function and abnormal immune responses. Life Sci 2019; 239:117021. [PMID: 31678552 DOI: 10.1016/j.lfs.2019.117021] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 10/21/2019] [Accepted: 10/26/2019] [Indexed: 02/07/2023]
Abstract
OBJECTIVES Clematichinenoside AR (AR) is a saponin extracted for traditional Chinese medicine with the effects of improving the expression of tight junction (TJ) proteins and mediating anti-inflammatory activities. However, its effect on Crohn's disease (CD) is still unknown. We aimed to investigate the impact of AR on CD-like colitis and determine the mechanism underlying its effects. METHODS Interleukin-10 gene knockout (Il-10-/-) mice (male, fifteen weeks old) with spontaneous colitis were allocated to the positive control and AR-treated (32 mg/kg AR administered every other day by gavage for 4 weeks) groups. Wild-type (WT) mice (male, fifteen weeks old) composed the negative control group. The effects of AR on intestinal barrier function and structure and T cell responses as well as the potential mechanisms underlying these effects were investigated. RESULTS AR treatment significantly improved spontaneous colitis in Il-10-/- mice as demonstrated by reductions in the inflammatory score, disease activity index (DAI) and levels of inflammatory factors. The effects of AR on colitis in Il-10-/- mice were related to protecting intestinal barrier function and maintaining immune system homeostasis (regulatory T cell (Treg)/T helper 17 (Th17) cell balance). The anticolitis effect of AR may partly act by downregulating PI3K/Akt signaling. CONCLUSIONS AR may have therapeutic potential for treating CD in humans.
Collapse
Affiliation(s)
- Xue Song
- Department of Central Laboratory, First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, China; Anhui Key Laboratory of Tissue Transplantation, Bengbu Medical College, Bengbu, China
| | - Jing Li
- Anhui Key Laboratory of Tissue Transplantation, Bengbu Medical College, Bengbu, China; Department of Clinical Laboratory, First Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - Yan Wang
- Anhui Key Laboratory of Tissue Transplantation, Bengbu Medical College, Bengbu, China; Department of Clinical Medicine, Bengbu Medical College, Bengbu, China
| | - Changmin Zhou
- Anhui Key Laboratory of Tissue Transplantation, Bengbu Medical College, Bengbu, China; Department of Clinical Medicine, Bengbu Medical College, Bengbu, China
| | - Zhichao Zhang
- Anhui Key Laboratory of Tissue Transplantation, Bengbu Medical College, Bengbu, China; Department of Clinical Medicine, Bengbu Medical College, Bengbu, China
| | - Mengdi Shen
- Anhui Key Laboratory of Tissue Transplantation, Bengbu Medical College, Bengbu, China; Department of Clinical Medicine, Bengbu Medical College, Bengbu, China
| | - Ping Xiang
- Department of Central Laboratory, First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, China
| | - Xiaofeng Zhang
- Department of Central Laboratory, First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, China; Anhui Key Laboratory of Tissue Transplantation, Bengbu Medical College, Bengbu, China
| | - Hao Zhao
- Department of Central Laboratory, First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, China
| | - Liang Yu
- Department of Central Laboratory, First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, China
| | - Lugen Zuo
- Anhui Key Laboratory of Tissue Transplantation, Bengbu Medical College, Bengbu, China; Department of Gastrointestinal Surgery, First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, China
| | - Jianguo Hu
- Anhui Key Laboratory of Tissue Transplantation, Bengbu Medical College, Bengbu, China; Department of Clinical Laboratory, First Affiliated Hospital of Bengbu Medical College, Bengbu, China.
| |
Collapse
|
23
|
The Anti-Apoptotic Effect of ASC-Exosomes in an In Vitro ALS Model and Their Proteomic Analysis. Cells 2019; 8:cells8091087. [PMID: 31540100 PMCID: PMC6770878 DOI: 10.3390/cells8091087] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 09/05/2019] [Accepted: 09/12/2019] [Indexed: 12/17/2022] Open
Abstract
Stem cell therapy represents a promising approach in the treatment of several neurodegenerative disorders, including amyotrophic lateral sclerosis (ALS). The beneficial effect of stem cells is exerted by paracrine mediators, as exosomes, suggesting a possible potential use of these extracellular vesicles as non-cell based therapy. We demonstrated that exosomes isolated from adipose stem cells (ASC) display a neuroprotective role in an in vitro model of ALS. Moreover, the internalization of ASC-exosomes by the cells was shown and the molecules and the mechanisms by which exosomes could exert their beneficial effect were addressed. We performed for the first time a comprehensive proteomic analysis of exosomes derived from murine ASC. We identified a total of 189 proteins and the shotgun proteomics analysis revealed that the exosomal proteins are mainly involved in cell adhesion and negative regulation of the apoptotic process. We correlated the protein content to the anti-apoptotic effect of exosomes observing a downregulation of pro-apoptotic proteins Bax and cleaved caspase-3 and upregulation of anti-apoptotic protein Bcl-2 α, in an in vitro model of ALS after cell treatment with exosomes. Overall, this study shows the neuroprotective effect of ASC-exosomes after their internalization and their global protein profile, that could be useful to understand how exosomes act, demonstrating that they can be employed as therapy in neurodegenerative diseases.
Collapse
|
24
|
Hsu CH, Liou GG, Jiang YJ. Nicastrin Deficiency Induces Tyrosinase-Dependent Depigmentation and Skin Inflammation. J Invest Dermatol 2019; 140:404-414.e13. [PMID: 31437444 DOI: 10.1016/j.jid.2019.07.702] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 07/04/2019] [Accepted: 07/05/2019] [Indexed: 12/19/2022]
Abstract
Skin depigmentation diseases, such as vitiligo, are pigmentation disorders that often destroy melanocytes. However, their pathological mechanisms remain unclear, and therefore, promising treatments or prevention has been lacking. Here, we demonstrate that a zebrafish insertional mutant showing a significant reduction of nicastrin transcript possesses melanosome maturation defect, Tyrosinase-dependent mitochondrial swelling, and melanophore cell death. The depigmentation phenotypes are proven to be a result of γ-secretase inactivation. Furthermore, live imaging demonstrates that macrophages are recruited to and can phagocytose melanophore debris. Thus, we characterize a potential zebrafish depigmentation disease model, a nicastrinhi1384 mutant, which can be used for further treatment or drug development of diseases related to skin depigmentation and/or inflammation.
Collapse
Affiliation(s)
- Chia-Hao Hsu
- Institute of Molecular and Genomic Medicine, National Health Research Institutes, Zhunan, Miaoli County, Taiwan; Institute of Bioinformatics and Structural Biology, National Tsing Hua University, Hsinchu, Taiwan
| | - Gunn-Guang Liou
- Institute of Molecular Biology, Academia Sinica, Taipei, Taiwan
| | - Yun-Jin Jiang
- Institute of Molecular and Genomic Medicine, National Health Research Institutes, Zhunan, Miaoli County, Taiwan; Biotechnology Center, National Chung Hsing University, Taichung, Taiwan; Institute of Molecular and Cellular Biology, National Taiwan University, Taipei, Taiwan; Department of Life Science, Tunghai University, Taichung, Taiwan.
| |
Collapse
|
25
|
Vitamin D3 increases the Caspase-3 p12, MTHFR, and P-glycoprotein reducing amyloid-β42 in the kidney of a mouse model for Down syndrome. Life Sci 2019; 231:116537. [DOI: 10.1016/j.lfs.2019.06.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 05/30/2019] [Accepted: 06/05/2019] [Indexed: 02/07/2023]
|
26
|
Wang L, Luan T, Zhou S, Lin J, Yang Y, Liu W, Tong X, Jiang W. LncRNA HCP5 promotes triple negative breast cancer progression as a ceRNA to regulate BIRC3 by sponging miR-219a-5p. Cancer Med 2019; 8:4389-4403. [PMID: 31215169 PMCID: PMC6675706 DOI: 10.1002/cam4.2335] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 05/08/2019] [Accepted: 05/26/2019] [Indexed: 12/29/2022] Open
Abstract
Emerging evidence has suggested that long noncoding RNAs (lncRNA) involved in the development and progression of cancer. Triple negative breast cancer (TNBC) was an aggressive type of breast cancer with high rates of cancer recurrence and metastasis. The pathogenesis of TNBC is largely unknown. Recent studies suggested that lncRNA HCP5 plays an important role in carcinogenesis. The purpose of this study was to examine the function and mechanism of HCP5 in TNBC. We observed that HCP5 was upregulated in TNBC cell lines and specimens. HCP5 knockdown induced TNBC cell apoptosis, and inhibited cell proliferation and orthotopic xenograft tumor growth. RNA sequencing and antibody array suggested that HCP5 achieves its functions through regulating apoptosis pathway. Bioinformatics, luciferase and RIP experiments proved that both HCP5 and BIRC3 could competitively bind to miR‐219a‐5p. Increased BIRC3 and decreased miR‐219a‐5p were observed in TNBC tissues and cell lines. We then performed gain‐ and loss‐of‐function studies as well as rescue experiments in TNBC cells. The decrease of proliferation and migration due to HCP5 knockdown could be rescued when miR‐219a‐5p inhibitor or BIRC3 was transfected and vice versa. Our study suggested that lncRNA HCP5 promotes TNBC progression as a ceRNA to regulate BIRC3 by sponging miR‐219a‐5p. In a word, we revealed a new signaling pathway to mediate TNBC, and provided HCP5 as a new target for improving treatment of TNBC.
Collapse
Affiliation(s)
- Lihong Wang
- Department of Pathophysiology, Medical College of Southeast University, Nanjing, China
| | - Tian Luan
- Institute of Cancer Prevention and Treatment, Heilongjiang Academy of Medical Science, Harbin Medical University, Harbin, China
| | - Shunheng Zhou
- College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China
| | - Jing Lin
- Institute of Cancer Prevention and Treatment, Heilongjiang Academy of Medical Science, Harbin Medical University, Harbin, China
| | - Yue Yang
- Institute of Cancer Prevention and Treatment, Heilongjiang Academy of Medical Science, Harbin Medical University, Harbin, China
| | - Wei Liu
- Department of Pathology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xiao Tong
- Department of Pathophysiology, Medical College of Southeast University, Nanjing, China
| | - Wei Jiang
- College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China
| |
Collapse
|
27
|
Kwan MY, Choo A, Hanania T, Ghavami A, Beltran J, Shea J, Barboza A, Hu A, Fowler M, Neelagiri VR, Sucholeiki I. Biomarker Analysis of Orally Dosed, Dual Active, Matrix Metalloproteinase (MMP)-2 and MMP-9 Inhibitor, AQU-118, in the Spinal Nerve Ligation (SNL) Rat Model of Neuropathic Pain. Int J Mol Sci 2019; 20:ijms20040811. [PMID: 30769782 PMCID: PMC6412460 DOI: 10.3390/ijms20040811] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2018] [Revised: 02/11/2019] [Accepted: 02/11/2019] [Indexed: 01/23/2023] Open
Abstract
There is an unmet medical need for the development of non-addicting pain therapeutics with enhanced efficacy and tolerability. The current study examined the effects of AQU-118, an orally active inhibitor of metalloproteinase-2 (MMP-2) and MMP-9, in the spinal nerve ligation (SNL) rat model of neuropathic pain. Mechanical allodynia and the levels of various biomarkers were examined within the dorsal root ganglion (DRG) before and after oral dosing with AQU-118. The rats that received the SNL surgery exhibited significant mechanical allodynia as compared to sham controls. Animals received either vehicle, positive control (gabapentin), or AQU-118. After SNL surgery, the dorsal root ganglion (DRG) of those rats dosed with vehicle had elevated messenger RNA (mRNA) expression levels for MMP-2, IL1-β & IL-6 and elevated protein levels for caspase-3 while exhibiting decreased protein levels for myelin basic protein (MBP) & active IL-β as compared to sham controls. Rats orally dosed with AQU-118 exhibited significantly reduced mechanical allodynia and decreased levels of caspase-3 in the DRG as compared to vehicle controls. Results demonstrate that oral dosing with the dual active, MMP-2/-9 inhibitor, AQU-118, attenuated mechanical allodynia while at the same time significantly reduced the levels of caspase-3 in the DRG.
Collapse
Affiliation(s)
- Mei Yee Kwan
- PsychoGenics Inc., 215 College Road, Paramus, NJ 07652, USA.
| | - Anthony Choo
- PsychoGenics Inc., 215 College Road, Paramus, NJ 07652, USA.
| | - Taleen Hanania
- PsychoGenics Inc., 215 College Road, Paramus, NJ 07652, USA.
| | - Afshin Ghavami
- PsychoGenics Inc., 215 College Road, Paramus, NJ 07652, USA.
| | - Jose Beltran
- PsychoGenics Inc., 215 College Road, Paramus, NJ 07652, USA.
| | - John Shea
- PsychoGenics Inc., 215 College Road, Paramus, NJ 07652, USA.
| | - Amidi Barboza
- PsychoGenics Inc., 215 College Road, Paramus, NJ 07652, USA.
| | - Andrew Hu
- PsychoGenics Inc., 215 College Road, Paramus, NJ 07652, USA.
| | - Marcie Fowler
- United States Army of Surgical Research, Joint Base San Antonio (JBSA), Fort Sam Houston, TX 78234, USA.
| | | | - Irving Sucholeiki
- Aquilus Pharmaceuticals Inc., 3H Gill Street, Suite 300, Woburn, MA 01801, USA.
| |
Collapse
|
28
|
Cogo F, Poreba M, Rut W, Groborz K, Smyth P, Johnston MC, Williams R, Longley DB, Burden RE, Salvesen GS, Drag M, Scott CJ. Development of an advanced nanoformulation for the intracellular delivery of a caspase-3 selective activity-based probe. NANOSCALE 2019; 11:742-751. [PMID: 30566168 PMCID: PMC7331821 DOI: 10.1039/c8nr07859a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The ability to label active caspase-3 represents a useful pharmacodynamic strategy to determine the efficacy of anti-tumour drugs. Activity-based probes (ABPs) provide a method for the labelling of activated caspases and the recent development of hybrid combinatorial substrate libraries (HyCoSuL) has allowed for the generation of highly selective ABPs to discriminately label these proteases. Here using this approach, a novel caspase-3 selective ABP (CS1) has been developed and validated in apoptotic cells to selectively bind caspase-3 over the closely related caspase-7. However, a critical bottleneck for ABPs is their cell penetrance and therefore this cell-impermeable CS1 probe was subsequently formulated into PLGA-based nanoparticles (CS1-NPs). We demonstrate the ability of these particles to be taken up by the cells and facilitate intracellular delivery of the ABP to effectively label caspase 3 in response to apoptotic stimuli. This work forms the foundation of a novel approach for the labelling of caspase 3 and may have downstream utility to measure real time apoptosis in tumours and other organs.
Collapse
Affiliation(s)
- Francesco Cogo
- Centre for Cancer Research and Cell Biology, Queen's University of Belfast, Belfast, UK.
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
29
|
Caspases orchestrate microglia instrumental functions. Prog Neurobiol 2018; 171:50-71. [DOI: 10.1016/j.pneurobio.2018.09.007] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Revised: 09/21/2018] [Accepted: 09/29/2018] [Indexed: 12/16/2022]
|
30
|
Wang S, Liu Z, Wang J, Wang Y, Liu J, Ji X, Wang X. The triptolide-induced apoptosis of osteoclast precursor by degradation of cIAP2 and treatment of rheumatoid arthritis of TNF-transgenic mice. Phytother Res 2018; 33:342-349. [PMID: 30417444 DOI: 10.1002/ptr.6224] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Revised: 09/10/2018] [Accepted: 10/09/2018] [Indexed: 01/03/2023]
Abstract
This study aims to discuss the effect of triptolide (TPL) on rheumatoid arthritis (RA) and the mechanism related to osteoclast precursor (OCP) and osteoclast (OC). TNF-transgenic RA mice were treated with different doses of TPL by gavage. After the administration was finished, the curative effects were evaluated and compared, and the OCP apoptosis rates, the OC number, and the OC differentiation ability in vitro were detected. Finally, splenocytes of wild-type mice were cultured in vitro and induced to differentiate into OCP, and the cell apoptosis rate, cIAP2, and apoptotic effectors expression level were detected after cIAP2 overexpression and TPL administration. After TPL administration, the RA symptoms in the TPL groups were all better, the apoptosis rate of OCP was higher, and the amount of OC in vitro were lower than that in the control group (all P < 0.05), and all of the changes in the high-dose group were more obvious than the low-dose group. In splenocytes cells cultured in vitro, cIAP2 overexpression could decrease the apoptosis rate of OCPs and increase the OC number, and TPL treatment could down-regulate the cIAP2 and promote OCP apoptosis and OC reduction. In conclusion, TPL could induce OCP apoptosis and inhibit OC formation to effectively treat RA by mediating cIAP2 degradation.
Collapse
Affiliation(s)
- Shengli Wang
- Orthopedics Department, The First Affiliated Hospital of Henan University, Kaifeng, China
| | - Zhigang Liu
- Orthopedics Department, The First Affiliated Hospital of Henan University, Kaifeng, China
| | - Jingchun Wang
- Department of Pharmacy, The First Affiliated Hospital of Henan University, Kaifeng, China
| | - Yifei Wang
- Orthopedics Department, The First Affiliated Hospital of Henan University, Kaifeng, China
| | - Jianhua Liu
- Orthopedics Department, The First Affiliated Hospital of Henan University, Kaifeng, China
| | - Xinying Ji
- Henan International Joint Laboratory of Nuclear Protein Regulation, Henan University Medical College, Kaifeng, China
| | - Xinchun Wang
- Henan International Joint Laboratory of Nuclear Protein Regulation, Henan University Medical College, Kaifeng, China
| |
Collapse
|
31
|
Erekat NS. Cerebellar Upregulation of Cell Surface Death Receptor-Mediated Apoptotic Factors in Harmaline-Induced Tremor: An Immunohistochemistry Study. J Cell Death 2018; 11:1179066018809091. [PMID: 30450003 PMCID: PMC6236486 DOI: 10.1177/1179066018809091] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2018] [Accepted: 09/30/2018] [Indexed: 11/24/2022] Open
Abstract
Active caspase-3-mediated apoptosis has been implicated in the pathogenesis of
harmaline-induced tremor. The aim of this study is to illustrate the impact of
tremor induction on the expression of factors mediating the cell surface death
receptor–dependent apoptosis. A total of 20 normal Wistar rats were randomly
selected and equally divided into control and experimental groups. Tremor was
induced in the experimental group by injecting the rats with a single dose of
harmaline (50 mg/kg). After that, cerebellar tissues were evaluated by
immunohistochemistry to examine the expression of tumor necrosis factor α
(TNF-α) and active caspase-8 in the 2 groups of animals. TNF-α and active
caspase-8 expression was significantly higher in cerebella from experimental
rats compared with that in those from the control rats (P
value < .01). Thus, our present data suggest the association of tremor
induction with the cerebellar overexpression of TNF-α and active caspase-8,
correlative with Purkinje cell (PC) loss indicated by loss of calbindin
immunoreactivity, indicating the induction of the cell surface death
receptor–mediated apoptosis.
Collapse
Affiliation(s)
- Nour S Erekat
- Department of Anatomy, Faculty of Medicine, Jordan University of Science and Technology, Irbid, Jordan
| |
Collapse
|
32
|
Twayana KS, Chaudhari N, Ravanan P. Prolonged lipopolysaccharide exposure induces transient immunosuppression in BV2 microglia. J Cell Physiol 2018; 234:1889-1903. [PMID: 30054903 DOI: 10.1002/jcp.27064] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2018] [Accepted: 06/26/2018] [Indexed: 12/12/2022]
Abstract
Continuous pre-exposure of immune cells to low level of inflammatory stimuli makes them hyporesponsive to subsequent exposure. This pathophysiological adaptation; known as endotoxin tolerance is a general paradigm behind several disease pathogenesis. Current study deals with this immunosuppression with respect to BV2 microglia. We attempted to investigate their immune response under prolonged endotoxin exposure and monitor the same upon withdrawal of the stimuli. BV2 microglia cells were maintained under continual exposure of lipopolysaccharide (LPS) for weeks with regular passage after 72 hr (prolonged LPS exposed cells [PLECs]). PLECs were found to be immunosuppressed with diminished expression of proinflammatory cytokines (IL6, IL1β, TNF-α, and iNOS) and production of nitric oxide, as compared to once LPS exposed cells. Upon remaintenance of cells in normal media without LPS exposure (LPS withdrawal cells [LWCs]), the induced immunosuppression reversed and cells started responding to inflammatory stimuli; revealed by significant expression of proinflammatory cytokines. LWCs showed functional similarities to never LPS exposed cells (NLECs) in phagocytosis activity and their response to anti-inflammatory agents like dexamethasone. Despite their immunoresponsiveness, PLECs were inflamed and showed higher autophagy rate than NLECs. Additionally, we investigated the role of inhibitor of apoptotic proteins (IAPs) in PLECs to understand whether IAPs aids in the survival of microglial cells under stress conditions. Our results revealed that cIAP1 and cIAP2 are induced in PLECs which might play a role in retaining the viability. Furthermore, antagonism of IAPs has significantly induced cell death in PLECs suggesting the role of IAPs in microglial survival under stress condition. Conclusively, our data suggest that continuous exposure of BV2 microglia cells to LPS results in transient immunosuppression and indicates the involvement of IAPs in retaining their viability under inflammatory stress.
Collapse
Affiliation(s)
- Krishna Sundar Twayana
- Apoptosis and Cell Survival Research Lab, Department of Biosciences, School of Biosciences and Technology, VIT University, Vellore, India
| | - Namrata Chaudhari
- Apoptosis and Cell Survival Research Lab, Department of Biosciences, School of Biosciences and Technology, VIT University, Vellore, India
| | - Palaniyandi Ravanan
- Apoptosis and Cell Survival Research Lab, Department of Biosciences, School of Biosciences and Technology, VIT University, Vellore, India
| |
Collapse
|
33
|
Targeting the NLRP3 Inflammasome-Related Pathways via Tianeptine Treatment-Suppressed Microglia Polarization to the M1 Phenotype in Lipopolysaccharide-Stimulated Cultures. Int J Mol Sci 2018; 19:ijms19071965. [PMID: 29976873 PMCID: PMC6073715 DOI: 10.3390/ijms19071965] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 06/29/2018] [Accepted: 07/03/2018] [Indexed: 12/28/2022] Open
Abstract
An increasing body of evidence postulates that microglia are the main mediators of inflammation-related disorders, including depression. Since activated microglia produce a wide range of pro- and anti-inflammatory factors, the modulation of M1/M2 microglial polarization by antidepressants may be crucial in the treatment of depression. The current paper aimed to investigate the impact of tianeptine on the microglia’s viability/death parameters, and on M1/M2 microglial activation in response to lipopolysaccharide (LPS) stimulation. Furthermore, the molecular mechanisms via which tianeptine affected the LPS-evoked changes were investigated. The results revealed that tianeptine had partially protective effects on the changes in microglia viability/death evoked by LPS. Tianeptine attenuated microglia activation by decreasing the expression of cluster of differentiation 40 (CD40), and major histocompatibility complex class II (MHC II) markers, as well as the release of pro-inflammatory factors: interleukin (IL)-1β, IL-18, IL-6, tumor necrosis factor alpha (TNF-α), and chemokine CC motif ligand 2 (CCL2), and the production of nitric oxide and reactive oxygen species. In contrast, we did not observe an impact of tianeptine on M2 microglia measured by IL-4, IL-10, TGF-β, and insulin-like growth factor 1 (IGF-1) expression. Moreover, we demonstrated an inhibitory effect of tianeptine on the LPS-induced activation of the nucleotide-binding oligomerization domain-like (NOD-like) receptor pyrin-containing 3 inflammasome (NLRP3) inflammasome subunits, NLRP3 and caspase-1, as well as the ability of tianeptine to reduce Toll-like receptor 4 (TLR4) levels, as well as the phosphorylation of extracellular signal-related kinases 1 and 2 (ERK1/2) and of the nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB). Collectively, we demonstrated that tianeptine has protective properties and inhibits M1 polarization, thus attenuating the production of inflammatory mediators. Moreover, we found that M1 microglia suppression may be related to the NLRP3 inflammasome and TLR4 signaling. These findings suggest that a better understanding of the multifaceted mechanisms of tianeptine action on microglia may increase the effectiveness of therapy, where inflammation is a central hallmark.
Collapse
|
34
|
Roumane A, Berthenet K, El Fassi C, Ichim G. Caspase-independent cell death does not elicit a proliferative response in melanoma cancer cells. BMC Cell Biol 2018; 19:11. [PMID: 29973136 PMCID: PMC6030751 DOI: 10.1186/s12860-018-0164-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Accepted: 06/26/2018] [Indexed: 02/06/2023] Open
Abstract
Background Apoptosis, the most well-known type of programmed cell death, can induce in a paracrine manner a proliferative response in neighboring surviving cells called apoptosis-induced proliferation (AiP). While having obvious benefits when triggered in developmental processes, AiP is a serious obstacle in cancer therapy, where apoptosis is frequently induced by chemotherapy. Therefore, in this study, we evaluated the capacity of an alternative type of cell death, called caspase-independent cell death, to promote proliferation. Results Using a novel in vitro isogenic cellular model to trigger either apoptosis or caspase-independent cell death, we found that the later has no obvious compensatory proliferation effects on neighboring cells. Conclusions This study enforces the idea that alternative types of cell death such as caspase-independent cell death could be considered to replace apoptosis in the context of cancer treatment. Electronic supplementary material The online version of this article (10.1186/s12860-018-0164-1) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Ahlima Roumane
- INSERM 1052, CNRS 5286, Cancer Research Center of Lyon (CRCL), Lyon, France
| | - Kevin Berthenet
- INSERM 1052, CNRS 5286, Cancer Research Center of Lyon (CRCL), Lyon, France.,LabEx DEVweCAN, Université de Lyon, Lyon, France
| | - Chaïmaa El Fassi
- INSERM 1052, CNRS 5286, Cancer Research Center of Lyon (CRCL), Lyon, France
| | - Gabriel Ichim
- INSERM 1052, CNRS 5286, Cancer Research Center of Lyon (CRCL), Lyon, France. .,LabEx DEVweCAN, Université de Lyon, Lyon, France.
| |
Collapse
|
35
|
Li X, Pei B, Wang H, Tang C, Zhu W, Jin F. Effect of AQP-5 silencing by siRNA interference on chemosensitivity of breast cancer cells. Onco Targets Ther 2018; 11:3359-3368. [PMID: 29922074 PMCID: PMC5995417 DOI: 10.2147/ott.s160313] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Objectives Based on the functionality of AQP-5 characterized in various physiological processes, our study aimed to investigate the effect of AQP-5 silencing by siRNA interference on chemosensitivity of breast cancer cells. Materials and methods The expression levels of AQP-5 mRNA in different experimental groups were measured by reverse transcription PCR. The chemosensitivity of the cells to adriamycin (ADR) was detected by a CCK-8 kit. Cell invasion, migration, and apoptosis were assessed. Western blot was used to detect the expression levels of AQP-5, drug resistance-related protein, and apoptosis-related protein. Results The expression level of AQP-5 in MCF-7/ADR cells was significantly reduced by AQP-5 siRNA transfection. The invasion and migration were significantly reduced in MCF-7/ADR after AQP-5 siRNA interference. AQP-5 silencing significantly increased the chemosensitivity of MCF-7/ADR cells to ADR and activated caspase-dependent apoptosis in MCF-7/ADR cells. AQP-5 silencing also decreased the expression levels of drug resistance-related proteins (P-gp and GST-π). Conclusion The inhibition of AQP-5 expression may reverse the drug resistance and enhance the chemosensitivity of breast cancer cells.
Collapse
Affiliation(s)
- Xueqing Li
- Department of General Surgery, The Fifth People's Hospital of Shanghai Fudan University, Shanghai, People's Republic of China
| | - Bing Pei
- Clinical Laboratory, Suqian First Hospital, Suqian, People's Republic of China
| | - Hui Wang
- Department of General Surgery, The Fifth People's Hospital of Shanghai Fudan University, Shanghai, People's Republic of China
| | - Chenghui Tang
- Department of General Surgery, The Fifth People's Hospital of Shanghai Fudan University, Shanghai, People's Republic of China
| | - Wei Zhu
- Department of Anesthesia, Jiangsu People's Hospital, Nanjing, People's Republic of China.,Department of Anesthesia, Suqian First Hospital, Suqian, People's Republic of China
| | - Feng Jin
- Cancer Center, Daping Hospital and Research Institute of Surgery, Third Military Medical University, Chongqing, People's Republic of China
| |
Collapse
|
36
|
Arya SB, Kumar G, Kaur H, Kaur A, Tuli A. ARL11 regulates lipopolysaccharide-stimulated macrophage activation by promoting mitogen-activated protein kinase (MAPK) signaling. J Biol Chem 2018; 293:9892-9909. [PMID: 29618517 PMCID: PMC6016484 DOI: 10.1074/jbc.ra117.000727] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 03/20/2018] [Indexed: 12/13/2022] Open
Abstract
ADP-ribosylation factor-like GTPase 11 (ARL11) is a cancer-predisposing gene that has remained functionally uncharacterized to date. In this study, we report that ARL11 is endogenously expressed in mouse and human macrophages and regulates their activation in response to lipopolysaccharide (LPS) stimulation. Accordingly, depletion of ARL11 impaired both LPS-stimulated pro-inflammatory cytokine production by macrophages and their ability to control intracellular replication of Salmonella. LPS-stimulated activation of extracellular signal–regulated kinase (ERK) and p38 mitogen-activated protein kinase (MAPK) was substantially compromised in Arl11-silenced macrophages. In contrast, increased expression of ARL11 led to constitutive ERK1/2 phosphorylation, resulting in macrophage exhaustion. Finally, we found that ARL11 forms a complex with phospho-ERK in macrophages within minutes of LPS stimulation. Taken together, our findings establish ARL11 as a novel regulator of ERK signaling in macrophages, required for macrophage activation and immune function.
Collapse
Affiliation(s)
- Subhash B Arya
- From the Division of Cell Biology and Immunology, CSIR-Institute of Microbial Technology (IMTECH), Chandigarh 160036, India
| | - Gaurav Kumar
- From the Division of Cell Biology and Immunology, CSIR-Institute of Microbial Technology (IMTECH), Chandigarh 160036, India
| | - Harmeet Kaur
- From the Division of Cell Biology and Immunology, CSIR-Institute of Microbial Technology (IMTECH), Chandigarh 160036, India
| | - Amandeep Kaur
- From the Division of Cell Biology and Immunology, CSIR-Institute of Microbial Technology (IMTECH), Chandigarh 160036, India
| | - Amit Tuli
- From the Division of Cell Biology and Immunology, CSIR-Institute of Microbial Technology (IMTECH), Chandigarh 160036, India
| |
Collapse
|
37
|
Oliva-Martin MJ, Sanchez-Abarca LI, Rodhe J, Carrillo-Jimenez A, Vlachos P, Herrera AJ, Garcia-Quintanilla A, Caballero-Velazquez T, Perez-Simon JA, Joseph B, Venero JL. Caspase-8 inhibition represses initial human monocyte activation in septic shock model. Oncotarget 2018; 7:37456-37470. [PMID: 27250033 PMCID: PMC5122324 DOI: 10.18632/oncotarget.9648] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2016] [Accepted: 05/17/2016] [Indexed: 12/12/2022] Open
Abstract
In septic patients, the onset of septic shock occurs due to the over-activation of monocytes. We tested the therapeutic potential of directly targeting innate immune cell activation to limit the cytokine storm and downstream phases. We initially investigated whether caspase-8 could be an appropriate target given it has recently been shown to be involved in microglial activation. We found that LPS caused a mild increase in caspase-8 activity and that the caspase-8 inhibitor IETD-fmk partially decreased monocyte activation. Furthermore, caspase-8 inhibition induced necroptotic cell death of activated monocytes. Despite inducing necroptosis, caspase-8 inhibition reduced LPS-induced expression and release of IL-1β and IL-10. Thus, blocking monocyte activation has positive effects on both the pro and anti-inflammatory phases of septic shock. We also found that in primary mouse monocytes, caspase-8 inhibition did not reduce LPS-induced activation or induce necroptosis. On the other hand, broad caspase inhibitors, which have already been shown to improve survival in mouse models of sepsis, achieved both. Thus, given that monocyte activation can be regulated in humans via the inhibition of a single caspase, we propose that the therapeutic use of caspase-8 inhibitors could represent a more selective alternative that blocks both phases of septic shock at the source.
Collapse
Affiliation(s)
- Maria Jose Oliva-Martin
- Department of Biochemistry and Molecular Biology, Faculty of Pharmacy, Universidad de Sevilla, Sevilla, Spain.,Instituto de Biomedicina de Sevilla (IBiS)-/CSIC/Universidad de Sevilla, Sevilla, Spain.,Department of Oncology-Pathology, Cancer Centrum Karolinska, Karolinska Institutet, Stockholm, Sweden
| | | | - Johanna Rodhe
- Instituto de Biomedicina de Sevilla (IBiS)-/CSIC/Universidad de Sevilla, Sevilla, Spain
| | - Alejandro Carrillo-Jimenez
- Department of Biochemistry and Molecular Biology, Faculty of Pharmacy, Universidad de Sevilla, Sevilla, Spain
| | - Pinelopi Vlachos
- Instituto de Biomedicina de Sevilla (IBiS)-/CSIC/Universidad de Sevilla, Sevilla, Spain
| | - Antonio Jose Herrera
- Department of Biochemistry and Molecular Biology, Faculty of Pharmacy, Universidad de Sevilla, Sevilla, Spain
| | - Albert Garcia-Quintanilla
- Department of Biochemistry and Molecular Biology, Faculty of Pharmacy, Universidad de Sevilla, Sevilla, Spain
| | | | - Jose Antonio Perez-Simon
- Department of Oncology-Pathology, Cancer Centrum Karolinska, Karolinska Institutet, Stockholm, Sweden
| | - Bertrand Joseph
- Instituto de Biomedicina de Sevilla (IBiS)-/CSIC/Universidad de Sevilla, Sevilla, Spain
| | - Jose Luis Venero
- Department of Biochemistry and Molecular Biology, Faculty of Pharmacy, Universidad de Sevilla, Sevilla, Spain
| |
Collapse
|
38
|
Kaempferol mitigates Endoplasmic Reticulum Stress Induced Cell Death by targeting caspase 3/7. Sci Rep 2018; 8:2189. [PMID: 29391535 PMCID: PMC5794799 DOI: 10.1038/s41598-018-20499-7] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Accepted: 01/17/2018] [Indexed: 12/12/2022] Open
Abstract
The Endoplasmic Reticulum (ER) plays a fundamental role in executing multiple cellular processes required for normal cellular function. Accumulation of misfolded/unfolded proteins in the ER triggers ER stress which contributes to progression of multiple diseases including neurodegenerative disorders. Recent reports have shown that ER stress inhibition could provide positive response against neuronal injury, ischemia and obesity in in vivo models. Our search towards finding an ER stress inhibitor has led to the functional discovery of kaempferol, a phytoestrogen possessing ER stress inhibitory activity in cultured mammalian cells. We have shown that kaempferol pre-incubation significantly inhibits the expression of GRP78 (a chaperone) and CHOP (ER stress associated pro-apoptotic transcription factor) under stressed condition. Also, our investigation in the inhibitory specificity of kaempferol has revealed that it inhibits cell death induced by diverse stimuli. Further study on exploring the molecular mechanism implied that kaempferol renders protection by targeting caspases. Both the in silico docking and in vitro assay using recombinant caspase-3 enzyme confirmed the binding of kaempferol to caspases, through an allosteric mode of competitive inhibition. Altogether, we have demonstrated the ability of kaempferol to alleviate ER stress in in vitro model.
Collapse
|
39
|
Simon PS, Bardhan K, Chen MR, Paschall AV, Lu C, Bollag RJ, Kong FC, Jin J, Kong FM, Waller JL, Pollock RE, Liu K. NF-κB functions as a molecular link between tumor cells and Th1/Tc1 T cells in the tumor microenvironment to exert radiation-mediated tumor suppression. Oncotarget 2018; 7:23395-415. [PMID: 27014915 PMCID: PMC5029635 DOI: 10.18632/oncotarget.8246] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2015] [Accepted: 02/28/2016] [Indexed: 12/12/2022] Open
Abstract
Radiation modulates both tumor cells and immune cells in the tumor microenvironment to exert its anti-tumor activity; however, the molecular connection between tumor cells and immune cells that mediates radiation-exerted tumor suppression activity in the tumor microenvironment is largely unknown. We report here that radiation induces rapid activation of the p65/p50 and p50/p50 NF-κB complexes in human soft tissue sarcoma (STS) cells. Radiation-activated p65/p50 and p50/p50 bind to the TNFα promoter to activate its transcription in STS cells. Radiation-induced TNFα induces tumor cell death in an autocrine manner. A sublethal dose of Smac mimetic BV6 induces cIAP1 and cIAP2 degradation to increase tumor cell sensitivity to radiation-induced cell death in vitro and to enhance radiation-mediated suppression of STS xenografts in vivo. Inhibition of caspases, RIP1, or RIP3 blocks radiation/TNFα-induced cell death, whereas inhibition of RIP1 blocks TNFα-induced caspase activation, suggesting that caspases and RIP1 act sequentially to mediate the non-compensatory cell death pathways. Furthermore, we determined in a syngeneic sarcoma mouse model that radiation up-regulates IRF3, IFNβ, and the T cell chemokines CCL2 and CCL5 in the tumor microenvironment, which are associated with activation and increased infiltration of Th1/Tc1 T cells in the tumor microenvironment. Moreover, tumor-infiltrating T cells are in their active form since both the perforin and FasL pathways are activated in irradiated tumor tissues. Consequently, combined BV6 and radiation completely suppressed tumor growth in vivo. Therefore, radiation-induced NF-κB functions as a molecular link between tumor cells and immune cells in the tumor microenvironment for radiation-mediated tumor suppression.
Collapse
Affiliation(s)
- Priscilla S Simon
- Department of Biochemistry and Molecular Biology, Medical College of Georgia, Augusta, GA, USA.,Cancer Center, Georgia Regents University, Augusta, GA, USA.,Charlie Norwood VA Medical Center, Augusta, GA, USA
| | - Kankana Bardhan
- Department of Biochemistry and Molecular Biology, Medical College of Georgia, Augusta, GA, USA
| | - May R Chen
- Department of Biochemistry and Molecular Biology, Medical College of Georgia, Augusta, GA, USA
| | - Amy V Paschall
- Department of Biochemistry and Molecular Biology, Medical College of Georgia, Augusta, GA, USA.,Cancer Center, Georgia Regents University, Augusta, GA, USA.,Charlie Norwood VA Medical Center, Augusta, GA, USA
| | - Chunwan Lu
- Department of Biochemistry and Molecular Biology, Medical College of Georgia, Augusta, GA, USA.,Charlie Norwood VA Medical Center, Augusta, GA, USA
| | - Roni J Bollag
- Cancer Center, Georgia Regents University, Augusta, GA, USA
| | - Feng-Chong Kong
- Radiation Oncology, Medical College of Georgia, Augusta, GA, USA.,Cancer Center, Georgia Regents University, Augusta, GA, USA
| | - JianYue Jin
- Radiation Oncology, Medical College of Georgia, Augusta, GA, USA.,Cancer Center, Georgia Regents University, Augusta, GA, USA
| | - Feng-Ming Kong
- Radiation Oncology, Medical College of Georgia, Augusta, GA, USA.,Cancer Center, Georgia Regents University, Augusta, GA, USA
| | - Jennifer L Waller
- Biostatistics and Epidemiology, Medical College of Georgia, Augusta, GA, USA
| | | | - Kebin Liu
- Department of Biochemistry and Molecular Biology, Medical College of Georgia, Augusta, GA, USA.,Cancer Center, Georgia Regents University, Augusta, GA, USA.,Charlie Norwood VA Medical Center, Augusta, GA, USA
| |
Collapse
|
40
|
Chen X, Hovanesian V, Naqvi S, Lim YP, Tucker R, Donahue JE, Stopa EG, Stonestreet BS. Systemic infusions of anti-interleukin-1β neutralizing antibodies reduce short-term brain injury after cerebral ischemia in the ovine fetus. Brain Behav Immun 2018; 67:24-35. [PMID: 28780000 PMCID: PMC5696097 DOI: 10.1016/j.bbi.2017.08.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2017] [Revised: 07/14/2017] [Accepted: 08/02/2017] [Indexed: 01/27/2023] Open
Abstract
Perinatal hypoxic-ischemic reperfusion (I/R)-related brain injury is a leading cause of neurologic morbidity and life-long disability in children. Infants exposed to I/R brain injury develop long-term cognitive and behavioral deficits, placing a large burden on parents and society. Therapeutic strategies are currently not available for infants with I/R brain damage, except for hypothermia, which can only be used in full term infants with hypoxic-ischemic encephalopathy (HIE). Moreover, hypothermia is only partially protective. Pro-inflammatory cytokines are key contributors to the pathogenesis of perinatal I/R brain injury. Interleukin-1β (IL-1β) is a critical pro-inflammatory cytokine, which has been shown to predict the severity of HIE in infants. We have previously shown that systemic infusions of mouse anti-ovine IL-1β monoclonal antibody (mAb) into fetal sheep resulted in anti-IL-1β mAb penetration into brain, reduced I/R-related increases in IL-1β expression and blood-brain barrier (BBB) dysfunction in fetal brain. The purpose of the current study was to examine the effects of systemic infusions of anti-IL-1β mAb on short-term I/R-related parenchymal brain injury in the fetus by examining: 1) histopathological changes, 2) apoptosis and caspase-3 activity, 3) neuronal degeneration 4) reactive gliosis and 5) myelin basic protein (MBP) immunohistochemical staining. The study groups included non-ischemic controls, placebo-treated ischemic, and anti-IL-1β mAb treated ischemic fetal sheep at 127days of gestation. The systemic intravenous infusions of anti-IL-1β mAb were administered at fifteen minutes and four hours after in utero brain ischemia. The duration of each infusion was two hours. Parenchymal brain injury was evaluated by determining pathological injury scores, ApopTag® positive cells/mm2, caspase-3 activity, Fluoro-Jade B positive cells/mm2, glial fibrillary acidic protein (GFAP) and MBP staining in the brains of fetal sheep 24h after 30min of ischemia. Treatment with anti-IL-1β mAb reduced (P<0.05) the global pathological injury scores, number of apoptotic positive cells/mm2, and caspase-3 activity after ischemia in fetal sheep. The regional pathological scores and Fluoro-Jade B positive cells/mm2 did not differ between the placebo- and anti-IL-1β mAb treated ischemic fetal sheep. The percent of the cortical area stained for GFAP was lower (P<0.05) in the placebo ischemic treated than in the non-ischemic group, but did not differ between the placebo- and anti-IL-1β mAb treated ischemic groups. MBP immunohistochemical expression did not differ among the groups. In conclusion, infusions of anti-IL-1β mAb attenuate short-term I/R-related histopathological tissue injury, apoptosis, and reduce I/R-related increases in caspase-3 activity in ovine fetal brain. Therefore, systemic infusions of anti-IL-1β mAb attenuate short-term I/R-related parenchymal brain injury in the fetus.
Collapse
Affiliation(s)
- Xiaodi Chen
- Department of Pediatrics, the Alpert Medical School of Brown University, Women & Infants Hospital of Rhode Island, Providence, RI
| | - Virginia Hovanesian
- Core Research Laboratories, the Alpert Medical School of Brown University, Rhode Island Hospital, Providence, RI
| | - Syed Naqvi
- Department of Pediatrics, the Alpert Medical School of Brown University, Women & Infants Hospital of Rhode Island, Providence, RI
| | | | - Richard Tucker
- Department of Pediatrics, the Alpert Medical School of Brown University, Women & Infants Hospital of Rhode Island, Providence, RI
| | - John E. Donahue
- Department of Pathology and Neurosurgery, the Alpert Medical School of Brown University, Rhode Island Hospital, Providence, RI
| | - Edward G. Stopa
- Department of Pathology and Neurosurgery, the Alpert Medical School of Brown University, Rhode Island Hospital, Providence, RI
| | - Barbara S. Stonestreet
- Department of Pediatrics, the Alpert Medical School of Brown University, Women & Infants Hospital of Rhode Island, Providence, RI
| |
Collapse
|
41
|
Wang J, Wang F, Wang Z, Li S, Chen L, Liu C, Sun D. Protective effect of GDNF-engineered amniotic fluid-derived stem cells on the renal ischaemia reperfusion injury in vitro. Cell Prolif 2017; 51:e12400. [PMID: 29114949 DOI: 10.1111/cpr.12400] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Accepted: 09/25/2017] [Indexed: 02/06/2023] Open
Abstract
OBJECTIVES Amniotic fluid-derived stem cells (AFSCs) possessing multilineage differentiation potential are proposed as a novel and accessible source for cell-based therapy and tissue regeneration. Glial-derived neurotrophic factor (GDNF) has been hypothesized to promote the therapeutic effect of AFSCs on markedly ameliorating renal dysfunction. The aim of this study was to investigate whether AFSCs equipped with GDNF (GDNF-AFSCs) had capabilities of attenuating mouse renal tubular epithelial cells (mRTECs) apoptosis and evaluate its potential mechanisms. MATERIALS AND METHODS A hypoxia-reoxygenation (H/R) model of the mRTECs was established. Injured mRTECs were co-cultured with GDNF-AFSCs in a transwell system. The mRNA expressions of hepatocytes growth factor (HGF) and fibroblast growth factor (bFGF) were detected by qRT-PCR. Changes of intracelluar reactive oxygen species (ROS) and the level of superoxide dismutase (SOD) and malondialdehyde (MDA) were examined. The expressions of nitrotyrosine, Gp91-phox, Bax, and Bcl-2 were determined by Western blotting. Cell apoptosis was assayed by flow cytometry, and caspase-3 activity was monitored by caspase-3 activity assay kit. RESULTS Our study revealed that expression of growth factors was increased and oxidative stress was dramatically counteracted in GDNF-AFSCs-treated group. Furthermore, apoptosis induced by H/R injury was inhibited in mRTECs by GDNF-AFSCs. CONCLUSIONS These data indicated that GDNF-AFSCs are beneficial to repairing damaged mRTECs significantly in vitro, which suggests GDNF-AFSCs provide new hopes of innovative interventions in different kidney disease.
Collapse
Affiliation(s)
- Jia Wang
- Department of Nephrology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Fengzhen Wang
- Department of Nephrology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China.,Department of Pharmaceutics, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Zhuojun Wang
- Department of Nephrology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Shulin Li
- Department of Nephrology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Lu Chen
- Department of Nephrology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Caixia Liu
- Department of Nephrology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Dong Sun
- Department of Nephrology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China.,Department of Internal Medicine and Diagnostics, Xuzhou Medical University, Xuzhou, China
| |
Collapse
|
42
|
Ku JM, Taher M, Chin KY, Grace M, McIntyre P, Miller AA. Characterisation of a mouse cerebral microvascular endothelial cell line (bEnd.3) after oxygen glucose deprivation and reoxygenation. Clin Exp Pharmacol Physiol 2017; 43:777-86. [PMID: 27128638 DOI: 10.1111/1440-1681.12587] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2015] [Revised: 04/17/2016] [Accepted: 04/26/2016] [Indexed: 11/29/2022]
Abstract
Studies have utilised immortalised mouse cerebral endothelial cells (bEnd.3) exposed to oxygen glucose deprivation (OGD) to study blood-brain barrier (BBB) disruption after ischaemia. However, there is a paucity of literature describing the duration of OGD (and reoxygenation [RO]) required to best simulate BBB disruption in vivo. In this study we assessed BBB disruption in bEnd.3 cells after exposure to a range of OGD periods, and also after OGD + RO. Exposure of bEnd.3 monolayers to 4, 6, 16, or 24 hours of OGD resulted in a significant increase in permeability. The hyperpermeability after 16 or 24 hours was associated with decreased expression of tight junction proteins (occludin and claudin-5). Furthermore, there was a decrease in cell viability and increased expression of the pro-apoptotic protein, cleaved caspase-3. Exposure of bEnd.3 monolayers to 1 hour OGD+ 23 hours RO exacerbated hyperpermeability relative to 1 hour OGD, which was associated with decreased expression levels of occludin and ZO-1, but no change in cell viability or caspase-3. 4 hours OGD + 23 hours RO exacerbated hyperpermeability, decreased expression levels of tight junction proteins, decreased cell viability, and increased caspase-3 expression. Thus, bEnd.3 cells exhibit hyperpermeability, a loss of tight junction proteins, and undergo cell death, after exposure to prolonged periods of OGD. Moreover, they exhibit exacerbated hyperpermeability, a loss of tight junction proteins, and increased expression of caspase-3 after OGD + RO. These findings will facilitate the use of this cell line in studies of BBB disruption and for the testing of therapeutics.
Collapse
Affiliation(s)
- Jacqueline M Ku
- School of Health and Biomedical Sciences, RMIT University, Bundoora, Melbourne, Victoria, Australia
| | - Mohammadali Taher
- School of Health and Biomedical Sciences, RMIT University, Bundoora, Melbourne, Victoria, Australia
| | - Kai Yee Chin
- School of Health and Biomedical Sciences, RMIT University, Bundoora, Melbourne, Victoria, Australia
| | - Megan Grace
- School of Health and Biomedical Sciences, RMIT University, Bundoora, Melbourne, Victoria, Australia
| | - Peter McIntyre
- School of Health and Biomedical Sciences, RMIT University, Bundoora, Melbourne, Victoria, Australia
| | - Alyson A Miller
- School of Health and Biomedical Sciences, RMIT University, Bundoora, Melbourne, Victoria, Australia
| |
Collapse
|
43
|
Wu N, Shen H, Wang Y, He B, Zhang Y, Bai Y, Du R, Du Q, Han P. Role of the PKCβII/JNK signaling pathway in acute glucose fluctuation-induced apoptosis of rat vascular endothelial cells. Acta Diabetol 2017; 54:727-736. [PMID: 28478520 DOI: 10.1007/s00592-017-0999-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Accepted: 04/24/2017] [Indexed: 12/19/2022]
Abstract
AIMS The purpose of this study was to investigate the mechanism of vascular endothelial cell apoptosis induced by acute blood glucose fluctuation. METHODS Thirty rats were assigned to three groups: normal saline (SAL group), constant high glucose (CHG group) and acute blood glucose fluctuation (AFG) group. Other forty rats were assigned to SAL group, AFG group, LY group (PKCβ inhibitor LY333531 was injected intragastrically to the rats who were under acute blood glucose fluctuation) and SP group (JNK inhibitor SP600125 was injected intraperitoneally to the rats who were under acute blood glucose fluctuation). Oxidative stress and inflammatory cytokines were detected. TUNEL was performed to detect apoptosis. Pro-caspase-3, caspase-3 p17, JNK, PKC-βII and insulin signaling-related protein expression were tested by Western blotting. RESULTS After administration of LY333531, AFG-induced membrane translocation of PKCβII protein was inhibited, but SP600125 failed to affect AFG-induced PKCβII membrane translocation. After administration of LY333531, the AFG-induced increase in JNK activity was significantly compromised. LY333531 inhibited AFG-induced oxidative stress. However, SP600125 only slightly inhibited AFG-induced oxidative stress reaction (P > 0.05). Both LY333531 and SP600125 can reverse AFG-induced endothelial cell apoptosis increase, inflammatory cytokines levels rise and insulin signaling impairment. CONCLUSIONS It is necessary to actively control blood glucose and avoid significant glucose fluctuation. PKCβII/JNK may serve as a target, and inhibitors of PKCβII/JNK may be used to help prevent cardiovascular diseases in patients with poor glucose control or significant glucose fluctuation.
Collapse
Affiliation(s)
- Na Wu
- Department of Endocrinology, Shengjing Hospital of China Medical University, Shenyang, 110004, China
| | - Haitao Shen
- Department of Emergency, Shengjing Hospital of China Medical University, Shenyang, 110004, China
| | - Yanjun Wang
- Department of Endocrinology, Shengjing Hospital of China Medical University, Shenyang, 110004, China
| | - Bing He
- Department of Endocrinology, Shengjing Hospital of China Medical University, Shenyang, 110004, China
| | - Yongyan Zhang
- Department of Endocrinology, Shengjing Hospital of China Medical University, Shenyang, 110004, China
| | - Yu Bai
- Department of Endocrinology, Shengjing Hospital of China Medical University, Shenyang, 110004, China
| | - Runyu Du
- Department of Endocrinology, Shengjing Hospital of China Medical University, Shenyang, 110004, China
| | - Qiang Du
- Department of Endocrinology, Shengjing Hospital of China Medical University, Shenyang, 110004, China
| | - Ping Han
- Department of Endocrinology, Shengjing Hospital of China Medical University, Shenyang, 110004, China.
| |
Collapse
|
44
|
Valiyari S, Salami M, Mahdian R, Shokrgozar MA, Oloomi M, Mohammadi Farsani A, Bouzari S. sIL-24 peptide, a human interleukin-24 isoform, induces mitochondrial-mediated apoptosis in human cancer cells. Cancer Chemother Pharmacol 2017; 80:451-459. [DOI: 10.1007/s00280-017-3370-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Accepted: 06/20/2017] [Indexed: 12/12/2022]
|
45
|
Leal‐Lasarte MM, Franco JM, Labrador‐Garrido A, Pozo D, Roodveldt C. Extracellular TDP‐43 aggregates target MAPK/MAK/MRK overlapping kinase (MOK) and trigger caspase‐3/IL‐18 signaling in microglia. FASEB J 2017; 31:2797-2816. [DOI: 10.1096/fj.201601163r] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Accepted: 02/26/2017] [Indexed: 12/12/2022]
Affiliation(s)
- María M. Leal‐Lasarte
- Andalusian Center for Molecular Biology and Regenerative Medicine (CABIMER)University of Seville–Spanish Research Council (CSIC)–University Paplo de OlavideSeville Spain
| | - Jaime M. Franco
- Andalusian Center for Molecular Biology and Regenerative Medicine (CABIMER)University of Seville–Spanish Research Council (CSIC)–University Paplo de OlavideSeville Spain
- Department of Medical BiochemistryMolecular Biology and ImmunologySchool of MedicineUniversity of SevilleSeville Spain
| | - Adahir Labrador‐Garrido
- Andalusian Center for Molecular Biology and Regenerative Medicine (CABIMER)University of Seville–Spanish Research Council (CSIC)–University Paplo de OlavideSeville Spain
- Department of Medical BiochemistryMolecular Biology and ImmunologySchool of MedicineUniversity of SevilleSeville Spain
| | - David Pozo
- Andalusian Center for Molecular Biology and Regenerative Medicine (CABIMER)University of Seville–Spanish Research Council (CSIC)–University Paplo de OlavideSeville Spain
- Department of Medical BiochemistryMolecular Biology and ImmunologySchool of MedicineUniversity of SevilleSeville Spain
| | - Cintia Roodveldt
- Andalusian Center for Molecular Biology and Regenerative Medicine (CABIMER)University of Seville–Spanish Research Council (CSIC)–University Paplo de OlavideSeville Spain
| |
Collapse
|
46
|
Raju M, Santhoshkumar P, Sharma KK. Lens Endogenous Peptide αA66-80 Generates Hydrogen Peroxide and Induces Cell Apoptosis. Aging Dis 2017; 8:57-70. [PMID: 28203481 PMCID: PMC5287387 DOI: 10.14336/ad.2016.0805] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Accepted: 08/05/2016] [Indexed: 01/27/2023] Open
Abstract
In previous studies, we reported the presence of a large number of low-molecular-weight (LMW) peptides in aged and cataract human lens tissues. Among the LMW peptides, a peptide derived from αA-crystallin, αA66-80, was found in higher concentration in aged and cataract lenses. Additional characterization of the αA66-80 peptide showed beta sheet signature, and it formed well-defined unbranched fibrils. Further experimental data showed that αA66-80 peptide binds α-crystallin, impairs its chaperone function, and attracts additional crystallin proteins to the peptide α-crystallin complex, leading to the formation of larger light scattering aggregates. It is well established that Aβ peptide exhibits cell toxicity by the generation of hydrogen peroxide. The αA66-80 peptide shares the principal properties of Aβ peptide. Therefore, the present study was undertaken to determine whether the fibril-forming peptide αA66-80 has the ability to generate hydrogen peroxide. The results show that the αA66-80 peptide generates hydrogen peroxide, in the amount of 1.2 nM H2O2 per µg of αA66-80 peptide by incubation at 37°C for 4h. We also observed cytotoxicity and apoptotic cell death in αA66-80 peptide-transduced Cos7 cells. As evident, we found more TUNEL-positive cells in αA66-80 peptide transduced Cos7 cells than in control cells, suggesting peptide-mediated cell apoptosis. Additional immunohistochemistry analysis showed the active form of caspase-3, suggesting activation of the caspase-dependent pathway during peptide-induced cell apoptosis. These results confirm that the αA66-80 peptide generates hydrogen peroxide and promotes hydrogen peroxide-mediated cell apoptosis.
Collapse
Affiliation(s)
| | | | - K Krishna Sharma
- 1Departments of Ophthalmology and; 2Biochemistry, University of Missouri School of Medicine, Columbia, MO65212, USA
| |
Collapse
|
47
|
Hu W, He T, Jiang R, Yin J, Li L, Lu X, Zhao H, Zhang L, Huang L, Sun H, Huang W, Fan Q. Inner salt-shaped small molecular photosensitizer with extremely enhanced two-photon absorption for mitochondrial-targeted photodynamic therapy. Chem Commun (Camb) 2017; 53:1680-1683. [DOI: 10.1039/c6cc09473b] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An inner salt-shaped small-molecular photosensitizer with unprecedentedly strong two-photon absorption was developed for highly efficient two-photon photodynamic therapyviaa mitochondrial apoptosis pathway.
Collapse
|
48
|
Shen X, Burguillos MA, Joseph B. Guilt by association, caspase-3 regulates microglia polarization. Cell Cycle 2016; 16:306-307. [PMID: 27830972 DOI: 10.1080/15384101.2016.1254979] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Affiliation(s)
- Xianli Shen
- a Department of Oncology-Pathology , Cancer Centrum Karolinska, Karolinska Institutet , Stockholm , Sweden
| | - Miguel A Burguillos
- b Cambridge Institute for Medical Research , Department of Clinical Neurosciences , University of Cambridge , Cambridge , UK
| | - Bertrand Joseph
- a Department of Oncology-Pathology , Cancer Centrum Karolinska, Karolinska Institutet , Stockholm , Sweden
| |
Collapse
|
49
|
Impact of inhibitor of apoptosis proteins on immune modulation and inflammation. Immunol Cell Biol 2016; 95:236-243. [DOI: 10.1038/icb.2016.101] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Revised: 10/03/2016] [Accepted: 10/03/2016] [Indexed: 12/13/2022]
|
50
|
Shen X, Burguillos MA, Osman AM, Frijhoff J, Carrillo-Jiménez A, Kanatani S, Augsten M, Saidi D, Rodhe J, Kavanagh E, Rongvaux A, Rraklli V, Nyman U, Holmberg J, Östman A, Flavell RA, Barragan A, Venero JL, Blomgren K, Joseph B. Glioma-induced inhibition of caspase-3 in microglia promotes a tumor-supportive phenotype. Nat Immunol 2016; 17:1282-1290. [PMID: 27618552 DOI: 10.1038/ni.3545] [Citation(s) in RCA: 74] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Accepted: 08/01/2016] [Indexed: 12/14/2022]
Abstract
Glioma cells recruit and exploit microglia (the resident immune cells of the brain) for their proliferation and invasion ability. The underlying molecular mechanism used by glioma cells to transform microglia into a tumor-supporting phenotype has remained elusive. We found that glioma-induced microglia conversion was coupled to a reduction in the basal activity of microglial caspase-3 and increased S-nitrosylation of mitochondria-associated caspase-3 through inhibition of thioredoxin-2 activity, and that inhibition of caspase-3 regulated microglial tumor-supporting function. Furthermore, we identified the activity of nitric oxide synthase 2 (NOS2, also known as iNOS) originating from the glioma cells as a driving stimulus in the control of microglial caspase-3 activity. Repression of glioma NOS2 expression in vivo led to a reduction in both microglia recruitment and tumor expansion, whereas depletion of microglial caspase-3 gene promoted tumor growth. Our results provide evidence that inhibition of the denitrosylation of S-nitrosylated procaspase-3 mediated by the redox protein Trx2 is a part of the microglial pro-tumoral activation pathway initiated by glioma cancer cells.
Collapse
Affiliation(s)
- Xianli Shen
- Department of Oncology-Pathology, Cancer Centrum Karolinska, Karolinska Institutet, Stockholm, Sweden
| | - Miguel A Burguillos
- Department of Oncology-Pathology, Cancer Centrum Karolinska, Karolinska Institutet, Stockholm, Sweden
| | - Ahmed M Osman
- Department of Women's and Children's Health, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden.,Department of Pediatric Oncology, Karolinska University Hospital, Stockholm, Sweden
| | - Jeroen Frijhoff
- Department of Oncology-Pathology, Cancer Centrum Karolinska, Karolinska Institutet, Stockholm, Sweden
| | - Alejandro Carrillo-Jiménez
- Departamento de Bioquímica y Biología Molecular, Universidad de Sevilla, Sevilla, Spain.,Instituto de Biomedicina de Sevilla, Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Sevilla, Spain
| | - Sachie Kanatani
- Center for Infectious Medicine, Department of Medicine, Karolinska Institutet, Stockholm, Sweden.,Department of Molecular Biosciences, the Wenner-Gren Institute, Stockholm University, Stockholm, Sweden
| | - Martin Augsten
- Department of Oncology-Pathology, Cancer Centrum Karolinska, Karolinska Institutet, Stockholm, Sweden
| | - Dalel Saidi
- Department of Oncology-Pathology, Cancer Centrum Karolinska, Karolinska Institutet, Stockholm, Sweden
| | - Johanna Rodhe
- Department of Oncology-Pathology, Cancer Centrum Karolinska, Karolinska Institutet, Stockholm, Sweden
| | - Edel Kavanagh
- Department of Oncology-Pathology, Cancer Centrum Karolinska, Karolinska Institutet, Stockholm, Sweden
| | - Anthony Rongvaux
- Department of Immunobiology, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Vilma Rraklli
- Department of Cell and Molecular Biology, Ludwig Institute for Cancer Research, Karolinska Institutet, Stockholm, Sweden
| | - Ulrika Nyman
- Department of Cell and Molecular Biology, Ludwig Institute for Cancer Research, Karolinska Institutet, Stockholm, Sweden
| | - Johan Holmberg
- Department of Cell and Molecular Biology, Ludwig Institute for Cancer Research, Karolinska Institutet, Stockholm, Sweden
| | - Arne Östman
- Department of Oncology-Pathology, Cancer Centrum Karolinska, Karolinska Institutet, Stockholm, Sweden
| | - Richard A Flavell
- Department of Immunobiology, Yale University School of Medicine, New Haven, Connecticut, USA.,Howard Hughes Medical Institute, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Antonio Barragan
- Center for Infectious Medicine, Department of Medicine, Karolinska Institutet, Stockholm, Sweden.,Department of Molecular Biosciences, the Wenner-Gren Institute, Stockholm University, Stockholm, Sweden
| | - Jose Luis Venero
- Departamento de Bioquímica y Biología Molecular, Universidad de Sevilla, Sevilla, Spain.,Instituto de Biomedicina de Sevilla, Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Sevilla, Spain
| | - Klas Blomgren
- Department of Women's and Children's Health, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden.,Department of Pediatric Oncology, Karolinska University Hospital, Stockholm, Sweden
| | - Bertrand Joseph
- Department of Oncology-Pathology, Cancer Centrum Karolinska, Karolinska Institutet, Stockholm, Sweden
| |
Collapse
|