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Weerarathne P, Reichard M, Miller C, Scimeca RC. The Establishment of a Novel In Vitro System for Culturing Cytauxzoon felis. Pathogens 2024; 13:565. [PMID: 39057792 PMCID: PMC11279574 DOI: 10.3390/pathogens13070565] [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: 05/28/2024] [Revised: 07/01/2024] [Accepted: 07/02/2024] [Indexed: 07/28/2024] Open
Abstract
Cytauxzoonosis, a highly fatal tick-borne disease in domestic cats caused by Cytauxzoon felis, poses diagnostic and therapeutic challenges due to the inability to culture the parasite in vitro. This study aimed to artificially replicate C. felis infection and characterize in vitro replication kinetics. Concanavalin A-activated feline embryonal macrophages (Fcwf-4) were plated at 3-5 × 105 cells/mL and incubated with C. felis-positive blood samples from either a (1) chronically infected bobcat (Lynx rufus), (2) chronically infected domestic cat, or (3) acutely infected domestic cat with clinical signs of cytauxzoonosis. Temporal changes in parasite load were quantified by droplet digital PCR (ddPCR), and the inhibition of infection/replication was assessed using atovaquone, imidocarb dipropionate (ID), artemisinin, ponazuril, and neutralizing antibodies. Tick cell lines AAE2 and ISE6 were also tested for infection. In vitro inoculation with chronic infection led to transient replication, while acute infection resulted in sustained replication beyond 10 days post-inoculation. Atovaquone, ID, and artemisinin inhibited replication, and neutralizing antibodies prevented infection. The inoculation of tick cells in vitro indicated infection; however, parasite replication was not observed. The results of this study established an in vitro model for studying infection dynamics, assessing therapy efficacy, and testing vaccination strategies in cytauxzoonosis-infected cats.
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Affiliation(s)
| | | | | | - Ruth C. Scimeca
- Department of Veterinary Pathobiology, College of Veterinary Medicine, Oklahoma State University, Stillwater, OK 74078, USA
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2
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Annie L, Nicy V, Rempuia V, Marak CC, Gurusubramanian G, Roy VK. Morin mitigates cadmium-induced testicular impairment by stimulating testosterone secretion and germ cell proliferation in mice. J Biochem Mol Toxicol 2023; 37:e23400. [PMID: 37335250 DOI: 10.1002/jbt.23400] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 03/31/2023] [Accepted: 06/08/2023] [Indexed: 06/21/2023]
Abstract
Cadmium (Cd) is one of the heavy metal pollutants present in the environment due to human intervention. It is well known that Cd causes toxicological effects on various organs, including the testes. Morin hydrate is a plant-derived bioflavonoid with antioxidant, anti-inflammatory, and anti-stress properties. Thus, the question can be raised as to whether Morin has an effect on Cd-intoxication-induced testicular impairment. Therefore, the aim of this study was to investigate the role of Morin on Cd-mediated disruption of testicular activity. Mice were divided into three groups: group 1 served as the control group, group 2 was given Cd (10 mg/kg) orally for 35 days, and group 3 was given Cd and Morin hydrate (100 mg/kg) for 35 days. To validate the in vivo findings, an in vitro study on testicular explants was also performed. The results of the in vivo study showed that Cd-intoxicated mice had testicular disorganization, reduced circulating testosterone levels, decreased sperm density, and elevated oxidative stress and sperm abnormality. The expression of the germ cell proliferation marker, germ cell nuclear acidic protein (GCNA), and adipocytokine visfatin were also downregulated. It was observed that Morin hydrate upregulated testicular visfatin and GCNA expression in Cd-intoxicated mice, along with improvement in circulating testosterone, testicular histology, and sperm parameters. Furthermore, the in vitro study showed that Cd-mediated downregulation of testicular visfatin and GCNA expression, along with the suppressed secretion of testosterone from testicular explants, was normalized by Morin treatment, whereas visfatin expression was not. Overall, these data indicate that environmental cadmium exposure impairs testicular activity through downregulation of visfatin and GCNA expression, and Morin might play a protective role against Cd-induced testicular toxicity.
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Affiliation(s)
| | - Vanrohlu Nicy
- Department of Zoology, Mizoram University, Aizawl, Mizoram, India
| | - Vanlal Rempuia
- Department of Zoology, Mizoram University, Aizawl, Mizoram, India
| | | | | | - Vikas K Roy
- Department of Zoology, Mizoram University, Aizawl, Mizoram, India
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Wang Z, Cui J, Li D, Ran S, Huang J, Chen G. Morin exhibits a neuroprotective effect in MPTP-induced Parkinson's disease model via TFEB/AMPK-mediated mitophagy. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2023; 116:154866. [PMID: 37209604 DOI: 10.1016/j.phymed.2023.154866] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 04/26/2023] [Accepted: 05/08/2023] [Indexed: 05/22/2023]
Abstract
BACKGROUND Parkinson's disease (PD) is one of the most common neurodegenerative diseases in the world. Mitophagy has been implicated in PD etiology for decades and its pharmacological activation is recognized as a promising treatment strategy for PD. For mitophagy initiation, low mitochondrial membrane potential (ΔΨm) is essential. We identified a natural compound morin that could induce mitophagy without affecting ΔΨm. Morin is a flavonoid that can be isolated from fruits like mulberry. PURPOSE To reveal the effect of morin on the PD mice model and their potential underlying molecular mechanism. METHODS Mitophagy process induced by morin in N2a cells meditation were measured using flow cytometry and immunofluorescence. JC-1 fluorescence dye used to detect the mitochondrial membrane potential (ΔΨm). The TFEB nuclear translocation were examined by immunofluorescence staining and western blot assay. The PD mice model was induced by MPTP (1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine) intraperitoneal administration. RESULTS We found that morin also promoted nuclear translocation of the mitophagy regulator TFEB and activated the AMPK-ULK1 pathway. In MPTP-induced PD in vivo models, morin protected DA neurons from MPTP neurotoxicity and ameliorated behavioral deficit. CONCLUSION Although morin was previously reported to be neuroprotective in PD, the detailed molecular mechanisms remain to be elucidated. For the first time, we report morin served as a novel and safe mitophagy enhancer underlying AMPK-ULK1 pathway and exhibited anti-Parkinsonian effects indicating its potential as a clinical drug for PD treatment.
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Affiliation(s)
- Ziying Wang
- Interdisciplinary Institute for Personalized Medicine in Brain Disorders, School of Traditional Chinese Medicine, Jinan University, Guangzhou, China.
| | - Jinshuai Cui
- Interdisciplinary Institute for Personalized Medicine in Brain Disorders, School of Traditional Chinese Medicine, Jinan University, Guangzhou, China
| | - Dongni Li
- Interdisciplinary Institute for Personalized Medicine in Brain Disorders, School of Traditional Chinese Medicine, Jinan University, Guangzhou, China
| | - Shuzhen Ran
- Interdisciplinary Institute for Personalized Medicine in Brain Disorders, School of Traditional Chinese Medicine, Jinan University, Guangzhou, China
| | - Junqing Huang
- Formula-pattern Research Center, School of Traditional Chinese Medicine, Jinan University, Guangzhou, China
| | - Gang Chen
- Interdisciplinary Institute for Personalized Medicine in Brain Disorders, School of Traditional Chinese Medicine, Jinan University, Guangzhou, China.
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Nathan J, Shameera R, Ramachandran A. Impact of nutraceuticals on immunomodulation against viral infections-A review during COVID-19 pandemic in Indian scenario. J Biochem Mol Toxicol 2023; 37:e23320. [PMID: 36799127 DOI: 10.1002/jbt.23320] [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: 09/06/2022] [Revised: 12/13/2022] [Accepted: 02/02/2023] [Indexed: 02/18/2023]
Abstract
The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) originated in Wuhan, China, in early December 2019 is a censorious global emergency after World War II. Research on the coronavirus uncovered essential information that aided in the development of the vaccine, and specific coronavirus disease 2019 (COVID-19) vaccines were later developed and were approved for usage in humans. But then, mutations in the coronavirus gave rise to new variants and questioned the vaccine's efficacy against them. On the other hand, the investigation of traditional medicine was also on its path to find a novel outcome against COVID-19. On a comparative analysis between India and the United States, India had low death rate and high recovery rate than the latter. The dietary regulation of immunity may be the factor that makes the above difference. The immunity gained from the regular diet of Indian culture nourishes Indian people with essential phytochemicals that support immunity and metabolism. Dietary phytochemicals or nutraceuticals possess antioxidant, anti-inflammatory, and anticancer properties, out of which our concern will be on immune-boosting phytochemicals from our daily nutritional supplements. In several case studies, dietary substance like lemon, ginger, and spinach was reported in the recovery of COVID-19 patients. Thus in this review, we discuss coronavirus and its available variants, vaccines, and the effect of nutraceuticals against the coronavirus. Further, we denote that the immunity of the Indian population may be high because of their diet, which adds natural phytochemicals to boost their immunity and metabolism.
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Affiliation(s)
- Jhansi Nathan
- AUKBC Research Centre for Emerging Technologies, Anna University, Chennai, Tamil Nadu, India
| | - Rabiathul Shameera
- AUKBC Research Centre for Emerging Technologies, Anna University, Chennai, Tamil Nadu, India
| | - Arunkumar Ramachandran
- Multidisciplinary Research Unit (MRU), Madras Medical College, Chennai, Tamil Nadu, India
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Guo J, Lu W, Meng Y, Liu Y, Dong C, Shuang S. The highly sensitive “turn-on” detection of morin using fluorescent nitrogen-doped carbon dots. Analyst 2022; 147:5455-5461. [DOI: 10.1039/d2an01646j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Graphic diagram of the synthesis of the N-CDs and the N-CDs based fluorescent sensor for the determination of morin.
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Affiliation(s)
- Jianhua Guo
- School of Chemistry and Chemical Engineering and Institute of Environmental Science, Shanxi University, Taiyuan 030006, China
| | - Wenjing Lu
- School of Chemistry and Chemical Engineering and Institute of Environmental Science, Shanxi University, Taiyuan 030006, China
| | - Yating Meng
- School of Chemistry and Chemical Engineering and Institute of Environmental Science, Shanxi University, Taiyuan 030006, China
| | - Yang Liu
- School of Chemistry and Chemical Engineering and Institute of Environmental Science, Shanxi University, Taiyuan 030006, China
| | - Chuan Dong
- School of Chemistry and Chemical Engineering and Institute of Environmental Science, Shanxi University, Taiyuan 030006, China
| | - Shaomin Shuang
- School of Chemistry and Chemical Engineering and Institute of Environmental Science, Shanxi University, Taiyuan 030006, China
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Niranjan R, Mishra KP, Tripathi SN, Thakur AK. Proliferation of Lung Epithelial Cells Is Regulated by the Mechanisms of Autophagy Upon Exposure of Soots. Front Cell Dev Biol 2021; 9:662597. [PMID: 34368122 PMCID: PMC8335634 DOI: 10.3389/fcell.2021.662597] [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: 02/01/2021] [Accepted: 06/14/2021] [Indexed: 11/13/2022] Open
Abstract
Background Soots are known to cause many diseases in humans, but their underlying mechanisms of toxicity are still not known. Here, we report that soots induce cell proliferation of lung epithelial cells via modulating autophagy pathways. Results Fullerene soot and diesel exhaust particles (DEP) induced cell proliferation of lung epithelial, A549 cells via distinct autophagic mechanisms and did not cause cell death. Exposure of fullerene soot protected the cell death of A549 cells, caused by hydrogen peroxide, and inhibited LPS-induced autophagy. Fullerene soot co-localized with the autophagic proteins and inhibited starvation-induced autophagy (downregulated ATG-5, beclin-1, p62, and LC3 expressions) independent of its antioxidant properties. Similarly, it decreased the expression profile of autophagic genes and upregulated the proliferation-responsive gene, Ki-67, in mice. We observed that expressions of fullerene soot-responsive genes (Beclin-1, ATG-5, and p62) were reverted by Akt Inhibitor X, indicating an important role of the Akt pathway. At an elemental level, we found that elemental carbon of fullerene soot may be converted into organic carbon, as measured by OCEC, which may point fullerene soot as a source of carbon. On the other hand, DEP upregulated the expressions of autophagy genes. Akt Inhibitor X did not attenuate DEP-induced cell proliferation and autophagic response. However, an autophagic inhibitor, chloroquine, and significantly inhibited DEP-induced cell proliferation. Conclusion It can be said that distinct autophagic mechanisms are operational in cell proliferation of lung epithelial cells due to soots, which may be responsible for different diseases. Understanding the mechanism of these pathways provides some important targets, which can be utilized for the development of future therapeutics.
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Affiliation(s)
- Rituraj Niranjan
- Laboratory 6, Department of Biological Sciences and Bioengineering (BSBE), Indian Institute of Technology, Kanpur, India.,Talent Search Scientist (TSS-ICMR), currently at, Immunology Laboratory, ICMR-Vector Control Research Centre, Puducherry, India
| | - Kaushal Prasad Mishra
- Laboratory 6, Department of Biological Sciences and Bioengineering (BSBE), Indian Institute of Technology, Kanpur, India
| | - Sachchida Nand Tripathi
- Department of Civil Engineering, Centre for Environmental Science and Engineering, Indian Institute of Technology Kanpur, Kanpur, India
| | - Ashwani Kumar Thakur
- Laboratory 6, Department of Biological Sciences and Bioengineering (BSBE), Indian Institute of Technology, Kanpur, India
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A Review of Traditional Chinese Medicine in Treating Renal Interstitial Fibrosis via Endoplasmic Reticulum Stress-Mediated Apoptosis. BIOMED RESEARCH INTERNATIONAL 2021; 2021:6667791. [PMID: 34055995 PMCID: PMC8147530 DOI: 10.1155/2021/6667791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 04/23/2021] [Accepted: 05/07/2021] [Indexed: 01/07/2023]
Abstract
Renal interstitial fibrosis (RIF) is the main pathological manifestation of end-stage renal disease. Recent studies have shown that endoplasmic reticulum (ER) stress is involved in the pathogenesis and development of RIF. Traditional Chinese medicine (TCM), as an effective treatment for kidney diseases, can improve kidney damage by affecting the apoptotic signaling pathway mediated by ER stress. This article reviews the apoptotic pathways mediated by ER stress, including the three major signaling pathways of unfolded protein response, the main functions of the transcription factor C/EBP homologous protein. We also present current research on TCM treatment of RIF, focusing on medicines that regulate ER stress. A new understanding of using TCM to treat kidney disease by regulating ER stress will promote clinical application of Chinese medicine and discovery of new drugs for the treatment of RIF.
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Thakur K, Zhu YY, Feng JY, Zhang JG, Hu F, Prasad C, Wei ZJ. Morin as an imminent functional food ingredient: an update on its enhanced efficacy in the treatment and prevention of metabolic syndromes. Food Funct 2021; 11:8424-8443. [PMID: 33043925 DOI: 10.1039/d0fo01444c] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Flavonoids represent polyphenolic plant secondary metabolites with a general structure of a 15-carbon skeleton comprising two phenyl rings and a heterocyclic ring. Over 5000 natural flavonoids (flavanones, flavanonols, and flavans) from various plants have been characterized. Several studies provide novel and promising insights into morin hydrate for its different biological activities against a series of metabolic syndromes. The present review is a rendition of its sources, chemistry, functional potency, and protective effects on metabolic syndromes ranging from cancer to brain injury. Most importantly this systematic review article also highlights the mechanisms of interest to morin-mediated management of metabolic disorders. The key mechanisms (anti-oxidative and anti-inflammatory) responsible for its therapeutic potential are well featured after collating the in vitro and in vivo study reports. As a whole, based on the prevailing information rationalizing its medicinal use, morin can be identified as a therapeutic agent for the expansion of human health.
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Affiliation(s)
- Kiran Thakur
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China.
| | - Yun-Yang Zhu
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China.
| | - Jing-Yu Feng
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China.
| | - Jian-Guo Zhang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China.
| | - Fei Hu
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China.
| | - Chandan Prasad
- Department of Nutrition and Food Sciences, Texas Woman's University, Denton, TX, USA. and Department of Medicine, LSU School of Medicine, New Orleans, LA, USA
| | - Zhao-Jun Wei
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China. and Collaborative Innovation Center for Food Production and Safety, School of Biological Science and Engineering, North Minzu University, Yinchuan 750021, China
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Singh MP, Sharma C, Kang SC. Morin hydrate attenuates adenine-induced renal fibrosis via targeting cathepsin D signaling. Int Immunopharmacol 2020; 90:107234. [PMID: 33310295 DOI: 10.1016/j.intimp.2020.107234] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Revised: 11/07/2020] [Accepted: 11/22/2020] [Indexed: 12/12/2022]
Abstract
Lysosomal proteases such as cathepsins B, D, L, and K can regulate the process of fibrosis in most of the organs. However, the role of cathepsin D (CATD) in kidney fibrosis and corresponding chronic kidney disease (CKD) is still unknown. We investigated whether CATD immunomodulation using morin hydrate (MH) can attenuate kidney fibrosis in CKD. Here, CKD was developed by an oral dosage of adenine (AD) in the mice model. Histopathological detection using H & E and Oil-Red-O staining revealed tissue deposition. An escalation in serum creatinine, albumin, and blood urea nitrogen (BUN) revealed a failure in kidney function. An increase in fibrosis was determined using protein analysis and mRNA analysis of MMP-9 and MMP-2 respectively. Both immunoblot analysis and histological analysis indicated that MH immunomudulated CATD expression in AD treated kidneys. With docking analysis, we found MH can bind with the catalytic core of CATD with binding efficiency of -6.83 kcal/mol. Further, MH prevented AD mediated fibrosis by reducing collagen fragmentation as evidenced by the decrease in MMP-2 (P < 0.05) and MMP-9 (P < 0.001) protein levels. MH lowered the levels of inflammation by reducing the AD enhanced expression of MCP-1 and COX-2 nearly threefold. MH treatment increased body weight, enhance kidney function, and improved survival by nearly 150% compared to AD treated mice. CATD inactivation by MH after AD treatment resulted in decreased ECM degradation, fibrosis, and inflammation which resulted in improved renal function and survival.
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Affiliation(s)
- Mahendra Pal Singh
- Department of Biotechnology, Daegu University, Gyeongsan, Gyeongbuk 38453, Republic of Korea; Department of Immunology, Mayo Clinic, Rochester MN55905, USA
| | - Chanchal Sharma
- Department of Biotechnology, Daegu University, Gyeongsan, Gyeongbuk 38453, Republic of Korea
| | - Sun Chul Kang
- Department of Biotechnology, Daegu University, Gyeongsan, Gyeongbuk 38453, Republic of Korea.
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Morin Hydrate Sensitizes Hepatoma Cells and Xenograft Tumor towards Cisplatin by Downregulating PARP-1-HMGB1 Mediated Autophagy. Int J Mol Sci 2020; 21:ijms21218253. [PMID: 33158052 PMCID: PMC7885522 DOI: 10.3390/ijms21218253] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 10/29/2020] [Accepted: 10/30/2020] [Indexed: 12/19/2022] Open
Abstract
The cross-talk between apoptosis and autophagy influences anticancer drug sensitivity and cellular death in various cancer cell lines. However, the fundamental mechanisms behind this phenomenon are still unidentified. We demonstrated anti-cancerous role of cisplatin (CP) and morin hydrate (Mh) as an individual and/or in combination (CP-Mh) in hepatoma cells and tumor model. Exposure of CP resulted in the production of intracellular reactive oxygen species (ROS)-mediated cellular vacuolization, expansion of mitochondria membrane and activation of endoplasmic reticulum (ER)-stress. Consequently, Cyt c translocation led to the increase of Bax/Bcl-2 ratio, which simultaneously triggered caspase-mediated cellular apoptosis. In addition, CP-induced PARP-1 activation led to ADP-ribosylation of HMGB1, which consequently developed autophagy as evident by the LC3I/II ratio. Chemically-induced inhibition of autophagy marked by increased cell death signified a protective role of autophagy against CP treatment. CP-Mh abrogates the PARP-1 expression and significantly reduced HMGB1-cytoplasmic translocation with subsequent inhibition of the HMGB1-Beclin1 complex formation. In the absence of PARP-1, a reduced HMGB1 mediated autophagy was observed followed by induced caspase-dependent apoptosis. To confirm the role of PARP-1-HMGB1 signaling in autophagy, we used the PARP-1 inhibitor, 4-amino-1,8-naphthalimide (ANI), HMGB1 inhibitor, ethyl pyruvate (EP), autophagy inhibitors, 3-methyl adenine (3-MA) and bafilomycin (baf) and small interfering RNAs (siRNA) to target Atg5 in combination of CP and Mh. Exposure to these inhibitors enhanced the sensitivity of HepG2 cells to CP. Collectively, our findings indicate that CP-Mh in combination served as a prominent regulator of autophagy and significant inducer of apoptosis that maintains a homeostatic balance towards HepG2 cells and the subcutaneous tumor model.
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Hong EH, Song JH, Kim SR, Cho J, Jeong B, Yang H, Jeong JH, Ahn JH, Jeong H, Kim SE, Chang SY, Ko HJ. Morin Hydrate Inhibits Influenza Virus entry into Host Cells and Has Anti-inflammatory Effect in Influenza-infected Mice. Immune Netw 2020; 20:e32. [PMID: 32895619 PMCID: PMC7458794 DOI: 10.4110/in.2020.20.e32] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 06/30/2020] [Accepted: 07/09/2020] [Indexed: 12/26/2022] Open
Abstract
Influenza virus is the major cause of seasonal and pandemic flu. Currently, oseltamivir, a potent and selective inhibitor of neuraminidase of influenza A and B viruses, is the drug of choice for treating patients with influenza virus infection. However, recent emergence of oseltamivir-resistant influenza viruses has limited its efficacy. Morin hydrate (3,5,7,2′,4′-pentahydroxyflavone) is a flavonoid isolated from Morus alba L. It has antioxidant, anti-inflammatory, neuroprotective, and anticancer effects partly by the inhibition of the NF-кB signaling pathway. However, its effects on influenza virus have not been studied. We evaluated the antiviral activity of morin hydrate against influenza A/Puerto Rico/8/1934 (A/PR/8; H1N1) and oseltamivir-resistant A/PR/8 influenza viruses in vitro. To determine its mode of action, we carried out time course experiments, and time of addition, hemolysis inhibition, and hemagglutination assays. The effects of the co-administration of morin hydrate and oseltamivir were assessed using the murine model of A/PR/8 infection. We found that morin hydrate reduced hemagglutination by A/PR/8 in vitro. It alleviated the symptoms of A/PR/8-infection, and reduced the levels of pro-inflammatory cytokines and chemokines, such as TNF-α and CCL2, in infected mice. Co-administration of morin hydrate and oseltamivir phosphate reduced the virus titers and attenuated pulmonary inflammation. Our results suggest that morin hydrate exhibits antiviral activity by inhibiting the entry of the virus.
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Affiliation(s)
- Eun-Hye Hong
- Laboratory of Microbiology and Immunology, College of Pharmacy, Kangwon National University, Chuncheon 24341, Korea
| | - Jae-Hyoung Song
- Laboratory of Microbiology and Immunology, College of Pharmacy, Kangwon National University, Chuncheon 24341, Korea.,Kangwon Institute of Inclusive Technology, Kangwon National University, Chuncheon 24341, Korea
| | - Seong-Ryeol Kim
- Laboratory of Microbiology and Immunology, College of Pharmacy, Kangwon National University, Chuncheon 24341, Korea
| | - Jaewon Cho
- Laboratory of Microbiology and Immunology, College of Pharmacy, Kangwon National University, Chuncheon 24341, Korea
| | - Birang Jeong
- Laboratory of Natural Products Chemistry, College of Pharmacy, Kangwon National University, Chuncheon 24341, Korea
| | - Heejung Yang
- Laboratory of Natural Products Chemistry, College of Pharmacy, Kangwon National University, Chuncheon 24341, Korea
| | - Jae-Hyeon Jeong
- Laboratory of Microbiology and Immunology, College of Pharmacy, Kangwon National University, Chuncheon 24341, Korea
| | - Jae-Hee Ahn
- Laboratory of Microbiology and Immunology, College of Pharmacy, Kangwon National University, Chuncheon 24341, Korea
| | - Hyunjin Jeong
- Laboratory of Microbiology and Immunology, College of Pharmacy, Kangwon National University, Chuncheon 24341, Korea
| | - Seong-Eun Kim
- Laboratory of Microbiology and Immunology, College of Pharmacy, Kangwon National University, Chuncheon 24341, Korea
| | - Sun-Young Chang
- Laboratory of Microbiology and Immunology, College of Pharmacy, Ajou University, Suwon 16499, Korea
| | - Hyun-Jeong Ko
- Laboratory of Microbiology and Immunology, College of Pharmacy, Kangwon National University, Chuncheon 24341, Korea.,Kangwon Institute of Inclusive Technology, Kangwon National University, Chuncheon 24341, Korea
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Immunomodulatory effect of natural flavonoid chrysin (5, 7-dihydroxyflavone) on LPS stimulated RAW 264.7 macrophages via inhibition of NF-κB activation. Process Biochem 2019. [DOI: 10.1016/j.procbio.2019.05.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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13
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Bhardwaj M, Mamadalieva NZ, Chauhan AK, Kang SC. α-Ecdysone suppresses inflammatory responses via the Nrf2 pathway in lipopolysaccharide-stimulated RAW 264.7 cells. Int Immunopharmacol 2019; 73:405-413. [DOI: 10.1016/j.intimp.2019.05.038] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 05/10/2019] [Accepted: 05/22/2019] [Indexed: 01/18/2023]
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14
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Kim SH, Park JW. Morin hydrate attenuates CSE-induced lipid accumulation, ER stress, and oxidative stress in RPE cells: implications for age-related macular degeneration. Free Radic Res 2019; 53:865-874. [PMID: 31257945 DOI: 10.1080/10715762.2019.1637862] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Revised: 06/13/2019] [Accepted: 06/17/2019] [Indexed: 01/19/2023]
Abstract
Oxidative stress has a key role in the pathogenesis of age-related macular degeneration (AMD). Cigarette smoking is known to the one of the main risk factors of AMD through oxidative stress-mediated endoplasmic reticulum (ER) stress and lipid accumulation in human retinal pigment epithelium (RPE) cells. A number of studies have investigated the benefits of antioxidants in the AMD. However, previous studies have not shown that efficacy of antioxidant in the treatment of AMD. Recent studies demonstrated that morin hydrate (MH) has antioxidant properties, anti-inflammatory, and antiapoptosis effects, however, the protective effects of MH against cigarette smoke extract (CSE)-induced AMD have not been studied in detail. We tested the potential effect of MH against the CSE-induced lipid accumulation in RPE cells and mice RPE layer. Herein, we observed that expose of RPE cells to CSE reduced cell viability, increased the lipid accumulation, ER stress, and oxidative stress. Concomitantly, CSE treatment to mice induced AMD associated histopathological changes, lipid accumulation, ER stress and oxidative stress in RPE layer. MH significantly attenuated cytotoxicity, lipid accumulation, ER stress, and oxidative stress via activated AMPK-Nrf2 signaling pathway in RPE cells and mice RPE layer. In addition, AMPK inhibition reversed MH-induced RPE cell protection against CSE. Thus, we conclude that MH protects RPE cells from CSE through reduced oxidative stress, ER stress, and lipid accumulation via activated AMPK-Nrf2-HO-1 signaling pathway. These findings suggest that MH treatment may be exploited in effective strategy against CSE-induced AMD.
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Affiliation(s)
- Sung Hwan Kim
- School of Life Sciences and Biotechnology, BK21 Plus KNU Creative BioResearch Group, College of Natural Sciences, Kyungpook National University , Daegu , Korea
| | - Jeen-Woo Park
- School of Life Sciences and Biotechnology, BK21 Plus KNU Creative BioResearch Group, College of Natural Sciences, Kyungpook National University , Daegu , Korea
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Morin Hydrate Reverses Cisplatin Resistance by Impairing PARP1/HMGB1-Dependent Autophagy in Hepatocellular Carcinoma. Cancers (Basel) 2019; 11:cancers11070986. [PMID: 31311167 PMCID: PMC6678360 DOI: 10.3390/cancers11070986] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 07/05/2019] [Accepted: 07/12/2019] [Indexed: 12/24/2022] Open
Abstract
Chemoresistance is a major obstacle that limits the benefits of cisplatin-based chemotherapy in various cancers, including hepatocellular carcinoma. De-regulation of the poly(ADP-ribose) polymerase 1 (PARP1)/high-mobility group box 1 (HMGB1) signaling pathway has been proposed as an important mechanism involved in cisplatin-resistance. In this study, we investigated therapeutic potential of a natural flavonoid Morin hydrate against cisplatin-induced toxicity using the HepG2DR multi-drug resistant cell line, which is derived from the HepG2 human hepatocellular carcinoma cell line. HepG2DR cells were exposed to cisplatin and Morin hydrate alone or together after which autophagy and apoptotic signaling pathways were monitored by fluorometric assay and Western blot analysis. Xenograft mouse models were performed to confirm the in vitro effect of Morin hydrate. PARP1 was hyper activated in cisplatin-resistant HepG2DR cells. Cisplatin-induced PARP1 activation resulted in chemoresistance via increased autophagy. The cisplatin/Morin hydrate combination was effective in the reversal of the HepG2DR cell resistance via suppression of PARP1-mediated autophagy by regulating the HMGB1 and microtubule-associated protein 1A/1B light chain 3B (LC3) I/II. Moreover, PARP1 inhibition by 4-amino-1,8-naphthalimide or autophagy inhibition by a knockdown of the autophagy-related 5 (ATG5) gene resulted in sensitizing the HepG2DR cells to cisplatin (CP) through activation of the c-Jun N-terminal kinase (JNK) pathway. In a mouse xenograft model, the treatment of cisplatin with Morin hydrate reversed the increased expression of PARP and HMGB1 and significantly suppressed tumor growth. These findings indicate dysregulated expression of PARP1 confers cisplatin-resistance via autophagy activation in HepG2DR cells. Morin hydrate inhibits cisplatin-mediated autophagy induction, resulting in increased susceptibility of HepG2DR cells to cisplatin cytotoxicity. The combination of Morin hydrate with cisplatin may be a promising therapeutic strategy to enhance the efficacy of conventional chemotherapeutic drugs.
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Jakhar R, Sharma C, Paul S, Kang SC. Immunosuppressive potential of astemizole against LPS activated T cell proliferation and cytokine secretion in RAW macrophages, zebrafish larvae and mouse splenocytes by modulating MAPK signaling pathway. Int Immunopharmacol 2018; 65:268-278. [PMID: 30359933 DOI: 10.1016/j.intimp.2018.10.014] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2018] [Revised: 09/27/2018] [Accepted: 10/10/2018] [Indexed: 10/28/2022]
Abstract
In this study, the immunomodulatory effects of astemizole (AST) against lipopolysaccharide (LPS) mediated T cell proliferation and induction of inflammation in RAW macrophages (in vitro), and zebrafish larvae (in vivo) were determined. AST significantly suppressed the phagocytic activity of macrophages (3.303 ± 0.115) and inhibited lysosomal enzyme secretion (13.27 ± 2.52) induced by LPS (100 ng/ml). Moreover, AST subdued the morphological deformities such as yolk sac edema (YSE) and spinal curvature curving (SC) by inhibiting ROS generation in zebrafish larvae 24 h after microinjection of LPS (0.5 mg/ml). AST was also shown to inhibit the production of the major cytokines TNF-α (150.8 ± 0.6), IL-1β (276.5 ± 1.6), and PGE2 (194.6 ± 0.6) pg/ml in RAW macrophages. It also subdued the ROS induced iNOS and COX-2 generated in response to LPS mediated immune dysfunctions in zebrafish larvae. These results suggested the immunosuppression effect of AST. Furthermore, induction of immune-suppression due to AST resulted in significant down-regulation of innate immunity directed by MAPK (p38, ERK and JNK), which was found to be associated with decreased production of acute inflammatory mediators both in vitro and in vivo. To confirm its activity, splenocytes were prepared using BALB/c mice and a mitogen activated splenocyte proliferation assay was also performed. Our findings suggest that AST has the ability to inhibit T cell proliferation and cytokine secretion both in vitro and in vivo by interfering with MAPK signaling pathway. Taken together, our results showed the potential of AST as a countermeasure to immune dysfunction and suggest its use as immunosuppressant compound in inflammatory disease.
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Affiliation(s)
- Rekha Jakhar
- Department of Biotechnology, Daegu University, Jillyang, Naeri-ri, Gyeongsan, Gyeongbuk 38453, Republic of Korea
| | - Chanchal Sharma
- Department of Biotechnology, Daegu University, Jillyang, Naeri-ri, Gyeongsan, Gyeongbuk 38453, Republic of Korea.
| | - Souren Paul
- Department of Biotechnology, Daegu University, Jillyang, Naeri-ri, Gyeongsan, Gyeongbuk 38453, Republic of Korea
| | - Sun Chul Kang
- Department of Biotechnology, Daegu University, Jillyang, Naeri-ri, Gyeongsan, Gyeongbuk 38453, Republic of Korea.
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Singh MP, Chauhan AK, Kang SC. Morin hydrate ameliorates cisplatin-induced ER stress, inflammation and autophagy in HEK-293 cells and mice kidney via PARP-1 regulation. Int Immunopharmacol 2018; 56:156-167. [PMID: 29414646 DOI: 10.1016/j.intimp.2018.01.031] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2017] [Revised: 01/18/2018] [Accepted: 01/19/2018] [Indexed: 12/31/2022]
Abstract
The present study assessed the possible therapeutic potential of a natural flavonoid morin hydrate (MH), against cisplatin (CP) induced toxicity in HEK-293 cells and mice kidney. Herein, we observed that exposure of HEK-293 cells to CP (20 μM, 24 h) reduced the cell viability, and increased the intracellular ROS generation, nuclear DNA damage, Ca++ release, and accumulation of acidic vacuoles. Concomitantly, acute exposure of CP (30 mg/kg, 72 h) to male ICR mice induced histopathological changes in kidney tissue, and alterations in serum creatinine and blood urea nitrogen (BUN) levels. Oxidative stress mediated ER-stress was evidenced by the reduced expression of antioxidant enzymes such as SOD-1, SOD-2, GR, and Trx, and increased expression levels of CytP450, IRE1-α, PERK, and CHOP. The expression levels of major inflammatory response markers such as NF-κB, TNF-α, IL-1β, COX-2 and iNOS were significantly increased in the HEK-293 cells and mice kidney. Temporal up-regulation of p-AMPK and LC3I/II, and down regulation of mTOR was also noticed after CP treatment. CP-induced DNA damage led to activation of PARP-1, which plays a crucial role in inflammation, apoptosis and autophagy activation. Concurrently, co-treatment of CP-MH and CP-ANI (PARP-1 inhibitor) significantly attenuated the expression level of PARP-1, reduced cellular death, alleviated inflammatory responses, and inhibited autophagy stimulation in HEK-293 cells and mice kidney. On the basis of above findings, we suggest MH as a potential therapeutic agent against CP-induced nephrotoxicity.
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Affiliation(s)
- Mahendra Pal Singh
- Department of Biotechnology, Daegu University, Gyeongsan, Gyeongbuk 38453, Republic of Korea
| | - Anil Kumar Chauhan
- Daegu Cancer Center, Research and Development Unit, Dong Sung Bio-Pharmaceutical Co. Ltd., Dong-gu, Daegu, Republic of Korea
| | - Sun Chul Kang
- Department of Biotechnology, Daegu University, Gyeongsan, Gyeongbuk 38453, Republic of Korea.
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Maatouk M, Mustapha N, Mokdad-Bzeouich I, Chaaban H, Abed B, Iaonnou I, Ghedira K, Ghoul M, Ghedira LC. Thermal treatment of luteolin-7-O-β-glucoside improves its immunomodulatory and antioxidant potencies. Cell Stress Chaperones 2017; 22:775-785. [PMID: 28578499 PMCID: PMC5655366 DOI: 10.1007/s12192-017-0808-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Revised: 02/27/2017] [Accepted: 05/14/2017] [Indexed: 12/18/2022] Open
Abstract
Phytochemicals extracted from flowers, roots and bark, leaves, and other plant sources have been used extensively throughout human history with varying levels of efficacy in prevention and treatment of disease. Recently, advanced methods for characterization and clinical use of these materials have allowed modern understanding of their properties to be used as immunomodulatory agents that act by enhancement of endogenous cytoprotective mechanisms, avoiding interference with normal physiologic signaling and highly effective medical treatment with minimal adverse side effects. Simple methods have been identified for improving their biological effects, such as thermal conditioning by heating or freezing-prominent example being heat treatment of lycopene and tetrahydrocannabinol. The present investigation shows improvement of the ability of heat to augment splenocyte proliferation, natural killer (NK) cell activities, and antioxidant capacity of the flavonoid luteolin-7-O-β-glucoside (L7G) in comparison with the native (non heat-treated) molecule, while further demonstrating that both the native and the heat-treated variants exhibit comparable antioxidant properties, as evidenced by their effects in macrophages by inhibition of nitric oxide production and lysosomal enzyme activity in experiments that strengthen lysosomal membrane integrity. Outcomes of these studies suggest that heat-treated L7G shows promise for use in immunotherapy, including anti-cancer regimens, as shown by its improvement of NK cell cytotoxicity.
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Affiliation(s)
- Mouna Maatouk
- Unité des Substances Naturelles Bioactives et Biotechnologie UR12ES12, Faculté de Pharmacie de Monastir, Université de Monastir, Rue Avicenne, 5000, Monastir, Tunisia
- Laboratoire de Biologie Moléculaire et Cellulaire, Faculté de Médecine Dentaire de Monastir, Université de Monastir, Rue Avicenne, 5000, Monastir, Tunisia
| | - Nadia Mustapha
- Unité des Substances Naturelles Bioactives et Biotechnologie UR12ES12, Faculté de Pharmacie de Monastir, Université de Monastir, Rue Avicenne, 5000, Monastir, Tunisia
- Laboratoire de Biologie Moléculaire et Cellulaire, Faculté de Médecine Dentaire de Monastir, Université de Monastir, Rue Avicenne, 5000, Monastir, Tunisia
| | - Imen Mokdad-Bzeouich
- Unité des Substances Naturelles Bioactives et Biotechnologie UR12ES12, Faculté de Pharmacie de Monastir, Université de Monastir, Rue Avicenne, 5000, Monastir, Tunisia
- Laboratoire de Biologie Moléculaire et Cellulaire, Faculté de Médecine Dentaire de Monastir, Université de Monastir, Rue Avicenne, 5000, Monastir, Tunisia
| | - Hind Chaaban
- Laboratoire d'Ingénierie des Biomolécules, ENSAIA-INPL, Université de Lorraine, Vandoeuvre-lès-Nancy, France
| | - Besma Abed
- Unité des Substances Naturelles Bioactives et Biotechnologie UR12ES12, Faculté de Pharmacie de Monastir, Université de Monastir, Rue Avicenne, 5000, Monastir, Tunisia
- Laboratoire de Biologie Moléculaire et Cellulaire, Faculté de Médecine Dentaire de Monastir, Université de Monastir, Rue Avicenne, 5000, Monastir, Tunisia
| | - Irina Iaonnou
- Laboratoire d'Ingénierie des Biomolécules, ENSAIA-INPL, Université de Lorraine, Vandoeuvre-lès-Nancy, France
| | - Kamel Ghedira
- Unité des Substances Naturelles Bioactives et Biotechnologie UR12ES12, Faculté de Pharmacie de Monastir, Université de Monastir, Rue Avicenne, 5000, Monastir, Tunisia
- Laboratoire de Biologie Moléculaire et Cellulaire, Faculté de Médecine Dentaire de Monastir, Université de Monastir, Rue Avicenne, 5000, Monastir, Tunisia
| | - Mohamed Ghoul
- Laboratoire d'Ingénierie des Biomolécules, ENSAIA-INPL, Université de Lorraine, Vandoeuvre-lès-Nancy, France
| | - Leila Chekir Ghedira
- Unité des Substances Naturelles Bioactives et Biotechnologie UR12ES12, Faculté de Pharmacie de Monastir, Université de Monastir, Rue Avicenne, 5000, Monastir, Tunisia.
- Laboratoire de Biologie Moléculaire et Cellulaire, Faculté de Médecine Dentaire de Monastir, Université de Monastir, Rue Avicenne, 5000, Monastir, Tunisia.
- Laboratory of Cellular and Molecular Biology, Faculty of Dental Medicine, University of Monastir, Rue Avicenne, 5000, Monastir, Tunisia.
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19
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Improved transdermal delivery of morin efficiently inhibits allergic contact dermatitis. Int J Pharm 2017; 530:145-154. [DOI: 10.1016/j.ijpharm.2017.07.062] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Revised: 07/05/2017] [Accepted: 07/20/2017] [Indexed: 02/08/2023]
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Jung JS, Choi MJ, Lee YY, Moon BI, Park JS, Kim HS. Suppression of Lipopolysaccharide-Induced Neuroinflammation by Morin via MAPK, PI3K/Akt, and PKA/HO-1 Signaling Pathway Modulation. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:373-382. [PMID: 28032996 DOI: 10.1021/acs.jafc.6b05147] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Morin is a flavonoid isolated from certain fruits and Chinese herbs and is known to possess various medicinal properties. In this study, we investigated the anti-inflammatory effects of morin on lipopolysaccharide (LPS)-induced microglial activation, both in vitro and in vivo. We found that morin inhibited inducible nitric oxide synthase (iNOS) and pro-inflammatory cytokines in LPS-stimulated BV2 microglial cells. Furthermore, morin suppressed the microglial activation and cytokine expression in the brains of LPS-stimulated mice. Subsequent mechanistic studies revealed that morin inhibited the action of LPS-activated mitogen-activated protein kinases (MAPKs), protein kinase B (Akt) phosphorylation, nuclear factor-κB (NF-κB), and activating protein-1 (AP-1). Further, the phosphorylation and DNA binding activity of cAMP responsive element binding protein (CREB) was enhanced by morin. Moreover, morin suppressed the LPS-induced expression of nicotinamide adenine dinucleotide phosphate (NADPH) oxidase subunits, while it increased heme oxygenase-1 (HO-1) expression and nuclear factor erythroid 2-related factor 2 (Nrf2) activation. Therefore, our data suggest that morin exerts anti-inflammatory effects in LPS-stimulated microglia by downregulating MAPK and phosphatidylinositol 3-kinase (PI3K)/Akt signaling pathways while upregulating protein kinase A (PKA)/CREB and Nrf2/HO-1 signaling pathways.
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Affiliation(s)
- Ji-Sun Jung
- Division of Functional Food Research, Korea Food Research Institute , Gyeonggi-do 463-746, Republic of Korea
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21
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Sheu MJ, Chiu CC, Yang DJ, Hsu TC, Tzang BS. The Root Extract of Gentiana macrophylla Pall. Alleviates B19-NS1-Exacerbated Liver Injuries in NZB/W F1 Mice. J Med Food 2017; 20:56-64. [DOI: 10.1089/jmf.2016.3817] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Affiliation(s)
- Ming-Jen Sheu
- Division of Gastroenterology and Hepatology, Chi Mei Medical Center, Tainan, Taiwan
- Department of Medicinal Chemistry, Chia Nan University of Pharmacy and Science, Tainan, Taiwan
| | - Chun-Ching Chiu
- Department of Neurology, Chunghua Christian Hospital, Chunghua, Taiwan
- Department of Medical Intensive Care Unit, Chunghua Christian Hospital, Chunghua, Taiwan
| | - Deng-Jye Yang
- Department of Nutrition, China Medical University, Taichung, Taiwan
| | - Tsai-Ching Hsu
- Institute of Biochemistry, Microbiology and Immunology, Chung Shan Medical University, Taichung, Taiwan
- Clinical Laboratory, Chung Shan Medical University Hospital, Taichung, Taiwan
- Immunology Research Center, Chung Shan Medical University, Taichung, Taiwan
| | - Bor-Show Tzang
- Institute of Biochemistry, Microbiology and Immunology, Chung Shan Medical University, Taichung, Taiwan
- Clinical Laboratory, Chung Shan Medical University Hospital, Taichung, Taiwan
- Immunology Research Center, Chung Shan Medical University, Taichung, Taiwan
- Department of Biochemistry, School of Medicine, Chung Shan Medical University, Taichung, Taiwan
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Ganguli A, Das A, Nag D, Bhattacharya S, Chakrabarti G. Potential role of autophagy in smokeless tobacco extract-induced cytotoxicity and in morin-induced protection in oral epithelial cells. Food Chem Toxicol 2016; 90:160-70. [DOI: 10.1016/j.fct.2016.02.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Revised: 02/09/2016] [Accepted: 02/11/2016] [Indexed: 01/07/2023]
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Anti-osteoclastogenic activity of isoliquiritigenin via inhibition of NF-κB-dependent autophagic pathway. Biochem Pharmacol 2016; 106:82-93. [PMID: 26947453 DOI: 10.1016/j.bcp.2016.03.002] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Accepted: 03/02/2016] [Indexed: 12/13/2022]
Abstract
Previous studies, including those from our laboratory, have demonstrated that the natural flavonoid isoliquiritigenin (ISL) is a promising agent for bone destructive diseases. However, the mechanisms underlying its anti-osteoclastogenic effects are still far from clear. Here, we evaluated the potential alterations of autophagy and nuclear factor-κB (NF-κB) during anti-osteoclastogenic effects by ISL in vitro and in vivo. We observed that ISL inhibited the receptor activator of nuclear factor-κB ligand (RANKL)-induced osteoclastogenesis and suppressed autophagic microtubule-associated protein light chain 3 (LC3)-II and Beclin 1 accumulation. ISL treatment resulted in the interruption of several specific features for autophagy in osteoclast precursors, including acidic vesicular organelle formation, LC3-II accumulation, and appearance of autophagic vacuoles. The RANKL-stimulated expression levels of autophagy-related genes and proteins also diminished in ISL-treated osteoclast precursors. The reactivation of autophagy by rapamycin almost reversed the ISL-elicited anti-osteoclastogenic effects. Interestingly, ISL inhibited the RANKL-stimulated NF-κB expression and nuclear translocation, whereas the NF-κB inhibitor Bay 11-7082 markedly suppressed the RANKL-induced autophagic activation. Consistent with the in vitro results, the administration of ISL could attenuate osteoclastogenic cathepsin K, autophagic LC3, and NF-κB expression to protect against inflammatory calvarial bone erosion in vivo. Our findings highlight the inhibition of NF-κB-dependent autophagy as an important mechanism of ISL-mediated anti-osteoclastogenic activity.
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Mustapha N, Mokdad-Bzéouich I, Sassi A, Abed B, Ghedira K, Hennebelle T, Chekir-Ghedira L. Immunomodulatory potencies of isolated compounds from Crataegus azarolus through their antioxidant activities. Tumour Biol 2015; 37:7967-80. [PMID: 26711781 DOI: 10.1007/s13277-015-4517-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Accepted: 11/25/2015] [Indexed: 01/27/2023] Open
Abstract
The search of natural immunomodulatory agents has become an area of great interest in order to reduce damage to the human body. In this study, the immunomodulatory potential of Crataegus azarolus and its isolated hyperoside on mouse lymphocytes and macrophages in vitro was assessed. The effect of C. azarolus natural compounds on splenocytes proliferation, natural killer (NK) and cytotoxic T lymphocytes (CTL) activities, and on macrophage-mediated cytotoxicity were assessed by MTT test. Phagocytic activity and inhibition of nitric oxide (NO) release by macrophages were also evaluated. The antioxidant capacity of these products was evaluated by determining their cellular antioxidant activity (CAA) in splenocytes and macrophages. Depending on the concentrations, both ethyl acetate (EA) extract and hyperoside (Hyp) from C. azarolus affect macrophage functions by modulating their lysosomal enzyme activity and nitric oxide release. Whereas, the above-mentioned products significantly promote LPS and lectin-stimulated splenocyte proliferation, implying a potential activation of lymphocytes B and T enhancing humoral and cellular immune responses. Moreover, EA extract and Hyp could enhance the activity of NK and T lymphocytes cells, as well as the macrophages-mediated cytotoxicity against B16F10 cells. The anti-inflammatory activity was concomitant with the cellular antioxidant effect of the tested compounds against macrophages and splenocytes. Collectively, C. azarolus and its isolated hyperoside exhibited an immunomodulatory effect through their antioxidant activity. These findings suggest that C. azarolus should be explored as a novel potential immunomodulatory agent for the treatment of inflammatory diseases.
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Affiliation(s)
- Nadia Mustapha
- Laboratoire de biologie cellulaire et moléculaire, Faculté de médecine dentaire, Université de Monastir, Rue Avicenne, 5000, Monastir, Tunisia
- Unité de Substances naturelles bioactives et biotechnologie UR12ES12, Faculté de pharmacie de Monastir, Université de Monastir, Rue Avicenne, 5000, Monastir, Tunisia
| | - Imèn Mokdad-Bzéouich
- Laboratoire de biologie cellulaire et moléculaire, Faculté de médecine dentaire, Université de Monastir, Rue Avicenne, 5000, Monastir, Tunisia
- Unité de Substances naturelles bioactives et biotechnologie UR12ES12, Faculté de pharmacie de Monastir, Université de Monastir, Rue Avicenne, 5000, Monastir, Tunisia
| | - Aicha Sassi
- Laboratoire de biologie cellulaire et moléculaire, Faculté de médecine dentaire, Université de Monastir, Rue Avicenne, 5000, Monastir, Tunisia
- Unité de Substances naturelles bioactives et biotechnologie UR12ES12, Faculté de pharmacie de Monastir, Université de Monastir, Rue Avicenne, 5000, Monastir, Tunisia
| | - Besma Abed
- Laboratoire de biologie cellulaire et moléculaire, Faculté de médecine dentaire, Université de Monastir, Rue Avicenne, 5000, Monastir, Tunisia
- Unité de Substances naturelles bioactives et biotechnologie UR12ES12, Faculté de pharmacie de Monastir, Université de Monastir, Rue Avicenne, 5000, Monastir, Tunisia
| | - Kamel Ghedira
- Unité de Substances naturelles bioactives et biotechnologie UR12ES12, Faculté de pharmacie de Monastir, Université de Monastir, Rue Avicenne, 5000, Monastir, Tunisia
| | - Thierry Hennebelle
- Laboratoire de Pharmacognosie, E.A. 1043, Université de Lille 2, Faculté de Pharmacie B.P. 83, 59006, Lille cedex, France
| | - Leila Chekir-Ghedira
- Laboratoire de biologie cellulaire et moléculaire, Faculté de médecine dentaire, Université de Monastir, Rue Avicenne, 5000, Monastir, Tunisia.
- Unité de Substances naturelles bioactives et biotechnologie UR12ES12, Faculté de pharmacie de Monastir, Université de Monastir, Rue Avicenne, 5000, Monastir, Tunisia.
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Lü S, Wang Q, Li G, Sun S, Guo Y, Kuang H. The treatment of rheumatoid arthritis using Chinese medicinal plants: From pharmacology to potential molecular mechanisms. JOURNAL OF ETHNOPHARMACOLOGY 2015; 176:177-206. [PMID: 26471289 DOI: 10.1016/j.jep.2015.10.010] [Citation(s) in RCA: 96] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2015] [Revised: 10/02/2015] [Accepted: 10/03/2015] [Indexed: 06/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Rheumatoid arthritis (RA) is a common worldwide public health problem. Traditional Chinese Medicine (TCM) achieved some results to some extent in the treatment of rheumatoid arthritis (RA). Especially in China, TCM formulas are used in the clinic because of their advantages. Some of these TCM formulas have been used for thousands of years in ancient China, they pays much attention to strengthening healthy qi, cleaning heat, and wet, activating blood, etc. So TCM in anti-RA drug is considered as a simple and effective method. In addition, TCM are also traditionally used as extracts and many Chinese herbs which are considered to be effective for RA. With the advancement of technologies and research methods, researchers have devoted themselves to exploring new therapeutic materials from troves of TCM. The components of TCM are identified and purified, which include alkaloids, coumarins, flavonoids, saponins and so on. However, little or no review works are found in the research literature on the anti-RA drugs from TCM. The present review aims to provide systematically reorganized information on the ethnopharmacology, phytochemistry and pharmacology of TCM used traditionally against RA. The information recorded in this review will provide new directions for researchers in the future. MATERIALS AND METHODS Relevant scientific literatures were collected from Chinese traditional books and Chinese Pharmacopoeia. Several important pharmacology data, clinical observations, animal experiments on effects of anti-RA drugs from TCM and their mechanisms were extracted from a library and electric search (Pubmed, PubChem Compound, Science Direct, Spring Link, Elsevier, Web of Science, CNKI, Wan Fang, Bai du, The Plant List, etc.). We collected information published between 2002 and 2015 on Chinese medicine in the treatment of RA. Information was also acquired from local classic herbal literature, conference papers, government reports, and PhD and MSc dissertations. RESULTS This review mainly introduces the current research on anti-RA TCM formulas, extracts and compounds from TCM, pharmacological data and potential mechanisms (inhibit osteoclast proliferation, suppress fibroblast-like synoviocytes (FLSs) growth, decrease the expression of inflammatory cytokines, blocking signal pathways, etc.). CONCLUSIONS TCM, as a multi-component and multi-target approach, which is a perfect match with the holistic concept of systems biology, is applicable in the treatment of RA. The synergistic connections of Chinese herbs and mechanisms of related active compounds on RA increase the trust for TCM. TCM as alternative remedies for RA not only has an important position in the world market, but also has an irreplaceable role in the treatment of RA in future.
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Affiliation(s)
- Shaowa Lü
- Key Laboratory of Ministry of Education, Department of Pharmacology, Heilongjiang University of Chinese Medicine, Harbin 150040, China.
| | - Qiushi Wang
- Key Laboratory of Ministry of Education, Department of Pharmacology, Heilongjiang University of Chinese Medicine, Harbin 150040, China.
| | - Guoyu Li
- College of Pharmacy, Harbin Medical University, Harbin 150040, China
| | - Shuang Sun
- Key Laboratory of Ministry of Education, Department of Pharmacology, Heilongjiang University of Chinese Medicine, Harbin 150040, China
| | - Yuyan Guo
- Key Laboratory of Ministry of Education, Department of Pharmacology, Heilongjiang University of Chinese Medicine, Harbin 150040, China
| | - Haixue Kuang
- Key Laboratory of Ministry of Education, Department of Pharmacology, Heilongjiang University of Chinese Medicine, Harbin 150040, China.
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Nasr-Bouzaiene N, Sassi A, Bedoui A, Krifa M, Chekir-Ghedira L, Ghedira K. Immunomodulatory and cellular antioxidant activities of pure compounds from Teucrium ramosissimum Desf. Tumour Biol 2015; 37:7703-12. [PMID: 26692099 DOI: 10.1007/s13277-015-4635-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Accepted: 12/10/2015] [Indexed: 11/30/2022] Open
Abstract
Evaluation of the immunomodulatory activity of plant compounds is an interesting and growing area of research. Teucrium ramosissimum Desf. is a native and endemic medicinal plant from the South of Tunisia traditionally used for the treatment of many diseases. The anti-inflammatory activity of apigenin-7-glucoside, genkwanin, and naringenin isolated from T. ramosissimum were assayed. The phagocytic activities of macrophage and lymphocyte proliferation were investigated in the absence and presence of mitogens (lipopolysaccharide [LPS] or lectin). Depending on the concentrations, the compounds affect macrophage functions by modulating their lysosomal enzyme activity and nitric oxide (NO) release. The tested compounds enhance significantly splenocyte proliferation, either with or without mitogen stimulation. In studies to assess any potential effects of apigenin-7-glucoside, genkwanin, and naringenin on innate immunity, the results showed that these compounds significantly enhanced the killing activity of natural killer (NK) cells and cytotoxic activity of the T lymphocyte (CTL) isolated from splenocytes. These results suggest that T. ramosissimum compounds such as apigenin-7-glucoside, genkwanin, and naringenin may be potentially useful for modulating immune cell functions in physiological and pathological conditions.
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Affiliation(s)
- Nouha Nasr-Bouzaiene
- Unit of Bioactive Natural Substances and Biotechnology UR12ES12, Faculty of Pharmacy, University of Monastir, Avicenne Street, Monastir, 5000, Tunisia
- Laboratory of Cellular and Molecular Biology, Faculty of Dental Medicine, University of Monastir, Avicenne Street, Monastir, 5000, Tunisia
| | - Aicha Sassi
- Unit of Bioactive Natural Substances and Biotechnology UR12ES12, Faculty of Pharmacy, University of Monastir, Avicenne Street, Monastir, 5000, Tunisia
- Laboratory of Cellular and Molecular Biology, Faculty of Dental Medicine, University of Monastir, Avicenne Street, Monastir, 5000, Tunisia
| | - Ahmed Bedoui
- Unit of Bioactive Natural Substances and Biotechnology UR12ES12, Faculty of Pharmacy, University of Monastir, Avicenne Street, Monastir, 5000, Tunisia
- Laboratory of Cellular and Molecular Biology, Faculty of Dental Medicine, University of Monastir, Avicenne Street, Monastir, 5000, Tunisia
| | - Mounira Krifa
- Unit of Bioactive Natural Substances and Biotechnology UR12ES12, Faculty of Pharmacy, University of Monastir, Avicenne Street, Monastir, 5000, Tunisia
- Laboratory of Cellular and Molecular Biology, Faculty of Dental Medicine, University of Monastir, Avicenne Street, Monastir, 5000, Tunisia
| | - Leila Chekir-Ghedira
- Unit of Bioactive Natural Substances and Biotechnology UR12ES12, Faculty of Pharmacy, University of Monastir, Avicenne Street, Monastir, 5000, Tunisia.
- Laboratory of Cellular and Molecular Biology, Faculty of Dental Medicine, University of Monastir, Avicenne Street, Monastir, 5000, Tunisia.
| | - Kamel Ghedira
- Laboratory of Cellular and Molecular Biology, Faculty of Dental Medicine, University of Monastir, Avicenne Street, Monastir, 5000, Tunisia
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Singh MP, Jakhar R, Kang SC. Morin hydrate attenuates the acrylamide-induced imbalance in antioxidant enzymes in a murine model. Int J Mol Med 2015; 36:992-1000. [PMID: 26252199 PMCID: PMC4564079 DOI: 10.3892/ijmm.2015.2306] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2015] [Accepted: 07/03/2015] [Indexed: 11/17/2022] Open
Abstract
Liver diseases are among the most serious health issues nowadays. Hepatocellular carcinoma, one of the most lethal types of cancer worldwide, can be caused by chemically-induced oxidative stress. In the present study, we aimed to evaluate the protective effects of morin hydrate (MH) against acrylamide (AA)-induced hepatotoxicity in male ICR mice. The mice were randomly allocated into 4 groups [the control, the group subcutaneously injected with AA alone (50 mg/kg body weight), the group subcutaneously injected with AA (50 mg/kg body weight) and MH (5 mg/kg body weight) and the group subcutaneously injected with AA (50 mg/kg body weight) and MH (15 mg/kg body weight) for 5 consecutive days]. Histopathological evaluations were performed and the levels of serum hepatic enzymes were analyzed to determine initial liver injury, and the mice in the AA-treated groups were compared with the mice receiving no treatment and with the mice administered MH in combination with AA. Furthermore, oxidative stress, hepatic inflammation and the levels of DNA damage-related markers were evaluated to determine the extent of liver damage induced by AA within a short-term period. The subcutaneous administration of AA induced severe hepatic injury, and combined treatment with AA and MH resulted in a significant improvement in all evaluated parameters. This recovery was most obvious in the group receiving AA and 15 mg/kg body weight dose of MH. The findings of our study demonstrated that MH protected mice from severe hepatic injury induced by AA. Moreover, MH is a natural polyphenolic compound, and thus it has potential for use in the treatment of severe liver diseases, in place of many synthetic drugs.
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Affiliation(s)
- Mahendra Pal Singh
- Department of Biotechnology, Daegu University, Gyeongsan, Gyeongbuk 712-714, Republic of Korea
| | - Rekha Jakhar
- Department of Biotechnology, Daegu University, Gyeongsan, Gyeongbuk 712-714, Republic of Korea
| | - Sun Chul Kang
- Department of Biotechnology, Daegu University, Gyeongsan, Gyeongbuk 712-714, Republic of Korea
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