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Zhang S, Hu D, Zhuo Y, Cui L, Li D, Zhang L, Yang L, Wang X. Protective effect of liriodendrin on IgG immune complex-induced acute lung injury via inhibiting SRC/STAT3/MAPK signaling pathway: a network pharmacology research. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2023; 396:3269-3283. [PMID: 37243760 DOI: 10.1007/s00210-023-02534-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 05/16/2023] [Indexed: 05/29/2023]
Abstract
The primary objectives of this research were to investigate the protective effects of liriodendrin against IgG immune complex (IgG-IC)-induced acute lung injury (ALI) and to elucidate the underlying mechanisms. This study employed a mouse and cell model of IgG-IC-induced acute lung injury. Lung tissue was stained with hematoxylin-eosin to observe pathological alterations and arterial blood gas analysis was tested. Inflammatory cytokines, including interleukin-6 (IL-6), interleukin-1β (IL-1β), and tumor necrosis factor-alpha (TNF-α), were measured using ELISA. The mRNA expression of inflammatory cytokines was assessed via RT-qPCR. Molecular docking and enrichment analysis were combined to identify the most potential signaling pathways modulated by liriodendrin, which were then verified using western blot analysis in IgG-IC-induced ALI models. We identified 253 shared targets between liriodendrin and IgG-IC-induced acute lung injury from the database. Through network pharmacology, enrichment analysis, and molecular docking, SRC was determined to be the most closely associated target of liriodendrin in IgG-IC-induced ALI. Pretreatment with liriodendrin notably reduced the increased cytokine secretion of IL-1β, IL-6, and TNF-α. Histopathological analysis of lung tissue demonstrated a protective effect of liriodendrin on IgG-IC-induced acute lung injury in mice. Arterial blood gas analysis showed liriodendrin ameliorated acidosis and hypoxemia efficiently. Further studies revealed that liriodendrin pretreatment substantially attenuated the elevated phosphorylation levels of SRC's downstream components (JNK, P38, and STAT3), suggesting that liriodendrin may protect against IgG-IC-induced ALI via the SRC/STAT3/MAPK pathway. Our findings indicate that liriodendrin protects against IgG-IC-induced acute lung injury by inhibiting the SRC/STAT3/MAPK signaling pathway, suggesting that liriodendrin may serve as a potential treatment for acute lung injury caused by IgG-IC.
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Affiliation(s)
- Sijia Zhang
- Graduate School, Tianjin Medical University, Tianjin, China
| | - Dongsheng Hu
- Graduate School, Tianjin Medical University, Tianjin, China
| | - Yuzhen Zhuo
- Tianjin Key Laboratory of Acute Abdomen Disease Associated Organ Injury and ITCWM Repair, Tianjin Nankai Hospital, Tianjin, China
| | - Lingzhi Cui
- Graduate School, Tianjin Medical University, Tianjin, China
| | - Dihua Li
- Tianjin Key Laboratory of Acute Abdomen Disease Associated Organ Injury and ITCWM Repair, Tianjin Nankai Hospital, Tianjin, China
| | - Lanqiu Zhang
- Tianjin Key Laboratory of Acute Abdomen Disease Associated Organ Injury and ITCWM Repair, Tianjin Nankai Hospital, Tianjin, China
| | - Lei Yang
- Tianjin Key Laboratory of Acute Abdomen Disease Associated Organ Injury and ITCWM Repair, Tianjin Nankai Hospital, Tianjin, China.
| | - Ximo Wang
- Graduate School, Tianjin Medical University, Tianjin, China.
- Tianjin Key Laboratory of Acute Abdomen Disease Associated Organ Injury and ITCWM Repair, Tianjin Nankai Hospital, Tianjin, China.
- Tianjin Key Laboratory of Acute Abdomen Disease Associated Organ Injury and ITCWM Repair, Institute of Integrative Medicine for Acute Abdominal Diseases, Tianjin University, Tianjin, China.
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Niu Y, Zhang J, Shi D, Zang W, Niu J. Glycosides as Potential Medicinal Components for Ulcerative Colitis: A Review. Molecules 2023; 28:5210. [PMID: 37446872 DOI: 10.3390/molecules28135210] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 06/21/2023] [Accepted: 06/28/2023] [Indexed: 07/15/2023] Open
Abstract
Ulcerative colitis (UC) is a chronic, non-specific disease of unknown etiology. The disease develops mainly in the rectum or colon, and the main clinical symptoms include abdominal pain, diarrhea, and purulent bloody stools, with a wide variation in severity. The specific causative factors and pathogenesis of the disease are not yet clear, but most scholars believe that the disease is caused by the interaction of genetic, environmental, infectious, immune, and intestinal flora factors. As for the treatment of UC, medications are commonly used in clinical practice, mainly including aminosalicylates, glucocorticoids, and immunosuppressive drugs. However, due to the many complications associated with conventional drug therapy and the tendency for UC to recur, there is an urgent need to discover new, safer, and more effective drugs. Natural compounds with biodiversity and chemical structure diversity from medicinal plants are the most reliable source for the development of new drug precursors. Evidence suggests that glycosides may reduce the development and progression of UC by modulating anti-inflammatory responses, inhibiting oxidative stress, suppressing abnormal immune responses, and regulating signal transduction. In this manuscript, we provide a review of the epidemiology of UC and the available drugs for disease prevention and treatment. In addition, we demonstrate the protective or therapeutic role of glycosides in UC and describe the possible mechanisms of action to provide a theoretical basis for preclinical studies in drug development.
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Affiliation(s)
- Yating Niu
- School of Basic Medical Science, Ningxia Medical University, Yinchuan 750004, China
| | - Jun Zhang
- Shandong Academy of Chinese Medicine, Jinan 250014, China
| | - Dianhua Shi
- Shandong Academy of Chinese Medicine, Jinan 250014, China
| | - Weibiao Zang
- School of Pharmacy, Ningxia Medical University, Yinchuan 750004, China
| | - Jianguo Niu
- School of Basic Medical Science, Ningxia Medical University, Yinchuan 750004, China
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Levorato-Vinche AD, Melhem MDSC, Bonfietti LX, de-la-Cruz-Chacón I, Boaro CSF, Fabro AT, Ferreira G, da Silva JDF, Dos Santos DC, Pereira BAS, Marçon C, Maza L, de Carvalho LR, Mendes RP. Antifungal activity of liriodenine on clinical strains of Cryptococcus neoformans and Cryptococcus gattii species complexes. J Venom Anim Toxins Incl Trop Dis 2022; 28:e20220006. [PMID: 36118844 PMCID: PMC9469771 DOI: 10.1590/1678-9199-jvatitd-2022-0006] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 07/27/2022] [Indexed: 11/22/2022] Open
Abstract
Background: Cryptoccocal meningitis continues to present high incidence among AIDS patients. The treatment of choice is the synergistic combination of flucytosine (5-FC) with amphotericin B deoxycholate (AmBd) or its lipid formulations. However, 5-FC is unavailable in many countries and AmB demands hospitalization. The combination of AmB with the fungistatic fluconazole (FLC) or the use of high FLC daily doses alone became the choice. Nonetheless, sterilization of cerebrospinal fluid is delayed with FLC monotherapy, mainly with high fungal burden. These findings suggest the search for new antifungal compounds, such as liriodenine. Methods: Liriodenine antifungal activity was evaluated by three procedures: determining the minimum inhibitory concentration (MIC) on 30 strains of the Cryptococcus neoformans (C. neoformans) complex and 30 of the Cryptococcus gattii (C. gattii) complex, using EUCAST methodology and amphotericin B deoxycholate as control; performing the time-kill methodology in two strains of the C. neoformans complex and one of the C. gattii complex; and injury to cryptococcal cells, evaluated by transmission electron microscopy (TEM). Liriodenine absorption and safety at 0.75 and 1.50 mg.kg-1 doses were evaluated in BALB/c mice. Results: Liriodenine MICs ranged from 3.9 to 62.5 μg.mL-1 for both species complexes, with no differences between them. Time-kill methodology confirmed its concentration-dependent fungicidal effect, killing all the strains below the limit of detection (33 CFU.mL-1) at the highest liriodenine concentration (32-fold MIC), with predominant activity during the first 48 hours. Liriodenine induced severe Cryptococcus alterations - cytoplasm with intense rarefaction and/or degradation, injury of organelles, and presence of vacuoles. Liriodenine was better absorbed at lower doses, with no histopathological alterations on the digestive tract. Conclusion: The fungicidal activity confirmed by time-kill methodology, the intense Cryptococcus injury observed by TEM, the absorption after gavage administration, and the safety at the tested doses indicate that the liriodenine molecule is a promising drug lead for development of anticryptococcal agents.
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Affiliation(s)
- Adriele Dandara Levorato-Vinche
- Department of Infectology, Dermatology, Diagnostic Imaging and Radiotherapy, Botucatu Medical School (FMB), São Paulo State University (UNESP), Botucatu, SP, Brazil
| | - Marcia de Souza Carvalho Melhem
- Mycology Unit, Adolfo Lutz Institute, Public Health Reference Laboratory, Secretariat of Health of the State of São Paulo, São Paulo, SP, Brazil.,Medical School, Federal University of Mato Grosso do Sul, Campo Grande, MS, Brazil
| | - Lucas Xavier Bonfietti
- Mycology Unit, Adolfo Lutz Institute, Public Health Reference Laboratory, Secretariat of Health of the State of São Paulo, São Paulo, SP, Brazil
| | - Iván de-la-Cruz-Chacón
- Instituto de Ciencias Biológicas, Universidad de Ciencias y Artes de Chiapas, Tuxtla Gutierrez, Chiapas, Mexico
| | - Carmen Sílvia Fernandes Boaro
- Department of Biostatistics, Plant Biology, Parasitology and Zoology, Botucatu Biosciences Institute, São Paulo State University (UNESP), Botucatu, SP, Brazil
| | - Alexandre Todorovic Fabro
- Department of Pathology and Legal Medicine, Ribeirão Preto Medical School, University of São Paulo (USP), Ribeirão Preto, SP, Brazil
| | - Gisela Ferreira
- Department of Biostatistics, Plant Biology, Parasitology and Zoology, Botucatu Biosciences Institute, São Paulo State University (UNESP), Botucatu, SP, Brazil
| | - Julhiany de Fátima da Silva
- Department of Infectology, Dermatology, Diagnostic Imaging and Radiotherapy, Botucatu Medical School (FMB), São Paulo State University (UNESP), Botucatu, SP, Brazil
| | - Daniela Carvalho Dos Santos
- Department of Structural and Functional Biology, Botucatu Biosciences Institute, São Paulo State University (UNESP), Botucatu, SP, Brazil
| | - Beatriz Aparecida Soares Pereira
- Department of Infectology, Dermatology, Diagnostic Imaging and Radiotherapy, Botucatu Medical School (FMB), São Paulo State University (UNESP), Botucatu, SP, Brazil
| | - Camila Marçon
- Department of Infectology, Dermatology, Diagnostic Imaging and Radiotherapy, Botucatu Medical School (FMB), São Paulo State University (UNESP), Botucatu, SP, Brazil
| | - Lariza Maza
- Department of Infectology, Dermatology, Diagnostic Imaging and Radiotherapy, Botucatu Medical School (FMB), São Paulo State University (UNESP), Botucatu, SP, Brazil
| | - Lídia Raquel de Carvalho
- Department of Biostatistics, Plant Biology, Parasitology and Zoology, Botucatu Biosciences Institute, São Paulo State University (UNESP), Botucatu, SP, Brazil
| | - Rinaldo Poncio Mendes
- Department of Infectology, Dermatology, Diagnostic Imaging and Radiotherapy, Botucatu Medical School (FMB), São Paulo State University (UNESP), Botucatu, SP, Brazil
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Li J, Zheng X, Li X, Yang J, Liu W, Yang L, Liu B. Study on the protective effect and mechanism of Liriodendrin on radiation enteritis in mice. JOURNAL OF RADIATION RESEARCH 2022; 63:213-220. [PMID: 35059715 PMCID: PMC8944324 DOI: 10.1093/jrr/rrab128] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 11/11/2021] [Indexed: 06/01/2023]
Abstract
Patients receiving pelvic or abdominal radiotherapy may experience acute and/or chronic side effects due to gastrointestinal changes. However, effective medicine for treating radiation enteritis has not been found yet. Sargentodoxa cuneata is a famous Chinese medicine used to treat intestinal inflammation, and our research team has found the main biologically active compound through its extraction, which is Liriodendrin. In this study, we found that Liriodendrin can reduce the expression of Cer, Cer1P and S1P in the sphingolipid pathway, thereby reducing the histological damage to the intestinal tract of mice and inhibiting the apoptosis of intestinal tissue cells. In addition, Liriodendrin can reduce the levels of pro-inflammatory cytokines (IL-6 and TNF-α), and it is suggested through flow cytometry that the proportion of neutrophils in the intestinal tissue can decrease due to the existence of Liriodendrin. At the same time, the western blot evaluation revealed that Liriodendrin significantly inhibited the activation of Bcl-2/Bax/Caspase-3 and NF-κB signaling pathways. The results show that Liriodendrin can inhibit intestinal inflammation and intestinal cell apoptosis through the sphingolipid pathway. Therefore, the aforementioned results demonstrated that Liriodendrin may be a promising drug for the treatment of radiation enteritis.
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Affiliation(s)
| | | | - Xiong Li
- Department of General Surgery, The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, Sichuan, 610051, China
| | - Jing Yang
- The School of Biological Science and Technology, Chengdu Medical College, 610083, Chengdu, China
| | - Wei Liu
- Department of General Surgery, The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, Sichuan, 610051, China
| | - Lei Yang
- Tianjin key Laboratory of Acute Abdomen Disease Associated Organ Injury and ITCWM Repair, Institute of Acute Abdominal Diseases, Tianjin Nankai Hospital, Tianjin, 300100, China
| | - Bin Liu
- Corresponding author. Bin Liu, Department of General Surgery, The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, 610051, China. E-mail: ; Tel: +86-13980823937; Fax: +86-028-84771387
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Vinche ADL, de- la-Cruz-Chacón I, González-Esquinca AR, da Silva JDF, Ferreira G, dos Santos DC, Garces HG, de Oliveira DVM, Marçon C, Cavalcante RDS, Mendes RP. Antifungal activity of liriodenine on agents of systemic mycoses, with emphasis on the genus Paracoccidioides. J Venom Anim Toxins Incl Trop Dis 2020; 26:e20200023. [PMID: 33193751 PMCID: PMC7595607 DOI: 10.1590/1678-9199-jvatitd-2020-0023] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Accepted: 10/06/2020] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND Endemic systemic mycoses remain a health challenge, since these opportunistic diseases are increasingly infecting immunosuppressed patients. The simultaneous use of antifungal compounds and other drugs to treat infectious or non-infectious diseases has led to several interactions and undesirable effects. Thus, new antifungal compounds should be investigated. The present study aimed to evaluate the activity of liriodenine extracted from Annona macroprophyllata on agents of systemic mycoses, with emphasis on the genus Paracoccidioides. METHODS The minimum inhibitory concentration (MIC) and minimum fungicide concentration (MFC) were determined by the microdilution method. The cellular alterations caused by liriodenine on a standard P. brasiliensis (Pb18) strain were evaluated by transmission and scanning electron microscopy. RESULTS Liriodenine was effective only in 3 of the 8 strains of the genus Paracoccidioides and in the Histoplasma capsulatum strain, in a very low concentration (MIC of 1.95 μg.mL-1); on yeasts of Candida spp. (MIC of 125 to 250 μg.mL-1), including C. krusei (250 μg.mL-1), which has intrinsic resistance to fluconazole; and in Cryptococcus neoformans and Cryptococcus gattii (MIC of 62.5 μg.mL-1). However, liriodenine was not effective against Aspergillus fumigatus at the studied concentrations. Liriodenine exhibited fungicidal activity against all standard strains and clinical isolates that showed to be susceptible by in vitro tests. Electron microscopy revealed cytoplasmic alterations and damage to the cell wall of P. brasiliensis (Pb18). CONCLUSION Our results indicate that liriodenine is a promising fungicidal compound that should undergo further investigation with some chemical modifications.
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Affiliation(s)
- Adriele Dandara Levorato Vinche
- Department of Tropical Disease and Imaging Diagnosis, Botucatu Medical School, São Paulo State University (UNESP), Botucatu, SP, Brazil
| | | | | | - Julhiany de Fátima da Silva
- Department of Tropical Disease and Imaging Diagnosis, Botucatu Medical School, São Paulo State University (UNESP), Botucatu, SP, Brazil
| | - Gisela Ferreira
- Institute of Biosciences of Botucatu, São Paulo State University (UNESP), Botucatu, SP, Brazil
| | | | - Hans Garcia Garces
- Institute of Biosciences of Botucatu, São Paulo State University (UNESP), Botucatu, SP, Brazil
| | | | - Camila Marçon
- Department of Tropical Disease and Imaging Diagnosis, Botucatu Medical School, São Paulo State University (UNESP), Botucatu, SP, Brazil
| | - Ricardo de Souza Cavalcante
- Department of Tropical Disease and Imaging Diagnosis, Botucatu Medical School, São Paulo State University (UNESP), Botucatu, SP, Brazil
| | - Rinaldo Poncio Mendes
- Department of Tropical Disease and Imaging Diagnosis, Botucatu Medical School, São Paulo State University (UNESP), Botucatu, SP, Brazil
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Desgrouas C, Taudon N, Bun SS, Baghdikian B, Bory S, Parzy D, Ollivier E. Ethnobotany, phytochemistry and pharmacology of Stephania rotunda Lour. JOURNAL OF ETHNOPHARMACOLOGY 2014; 154:537-563. [PMID: 24768769 DOI: 10.1016/j.jep.2014.04.024] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2013] [Revised: 04/11/2014] [Accepted: 04/12/2014] [Indexed: 06/03/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Stephania rotunda Lour. (Menispermaceae) is an important traditional medicinal plant that is grown in Southeast Asia. The stems, leaves, and tubers have been used in the Cambodian, Lao, Indian and Vietnamese folk medicine systems for years to treat a wide range of ailments, including asthma, headache, fever, and diarrhoea. AIM OF THE REVIEW To provide an up-to-date, comprehensive overview and analysis of the ethnobotany, phytochemistry, and pharmacology of Stephania rotunda for its potential benefits in human health, as well as to assess the scientific evidence of traditional use and provide a basis for future research directions. MATERIAL AND METHODS Peer-reviewed articles on Stephania rotunda were acquired via an electronic search of the major scientific databases (Pubmed, Google Scholar, and ScienceDirect). Data were collected from scientific journals, theses, and books. RESULTS The traditional uses of Stephania rotunda were recorded in countries throughout Southeast Asia (Cambodia, Vietnam, Laos, and India). Different parts of Stephania rotunda were used in traditional medicine to treat about twenty health disorders. Phytochemical analyses identified forty alkaloids. The roots primarily contain l-tetrahydropalmatine (l-THP), whereas the tubers contain cepharanthine and xylopinine. Furthermore, the chemical composition differs from one region to another and according to the harvest period. The alkaloids exhibited approximately ten different pharmacological activities. The main pharmacological activities of Stephania rotunda alkaloids are antiplasmodial, anticancer, and immunomodulatory effects. Sinomenine, cepharanthine, and l-stepholidine are the most promising components and have been tested in humans. The pharmacokinetic parameters have been studied for seven compounds, including the three most promising compounds. The toxicity has been evaluated for liriodenine, roemerine, cycleanine, l-tetrahydropalmatine, and oxostephanine. CONCLUSION Stephania rotunda is traditionally used for the treatment of a wide range of ailments. Pharmacological investigations have validated different uses of Stephania rotunda in folk medicine. The present review highlights the three most promising compounds of Stephania rotunda, which could constitute potential leads in various medicinal fields, including malaria and cancer.
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Affiliation(s)
- Camille Desgrouas
- UMR-MD3, IRBA, Faculté de Pharmacie, 27 boulevard Jean Moulin CS30064 13385 Marseille cedex 5, Aix-Marseille Université, France; UMR-MD3, Laboratoire de Pharmacognosie et Ethnopharmacologie, Faculté de Pharmacie, 27 boulevard Jean Moulin CS30064 13385 Marseille cedex 5, Aix-Marseille Université, France.
| | | | - Sok-Siya Bun
- UMR-MD3, Laboratoire de Pharmacognosie et Ethnopharmacologie, Faculté de Pharmacie, 27 boulevard Jean Moulin CS30064 13385 Marseille cedex 5, Aix-Marseille Université, France.
| | - Beatrice Baghdikian
- UMR-MD3, Laboratoire de Pharmacognosie et Ethnopharmacologie, Faculté de Pharmacie, 27 boulevard Jean Moulin CS30064 13385 Marseille cedex 5, Aix-Marseille Université, France.
| | - Sothavireak Bory
- Faculté de Pharmacie, Université des Sciences de la Santé, no. 73, Monivong Blvd, Daun Penh, Phnom Penh, Cambodia.
| | - Daniel Parzy
- UMR-MD3, IRBA, Faculté de Pharmacie, 27 boulevard Jean Moulin CS30064 13385 Marseille cedex 5, Aix-Marseille Université, France.
| | - Evelyne Ollivier
- UMR-MD3, Laboratoire de Pharmacognosie et Ethnopharmacologie, Faculté de Pharmacie, 27 boulevard Jean Moulin CS30064 13385 Marseille cedex 5, Aix-Marseille Université, France.
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Lee JJ, Jin CM, Kim YK, Ryu SY, Lim SC, Lee MK. Effects of anonaine on dopamine biosynthesis and L-DOPA-induced cytotoxicity in PC12 cells. Molecules 2008; 13:475-87. [PMID: 18305432 PMCID: PMC6245076 DOI: 10.3390/molecules13020475] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2008] [Revised: 02/22/2008] [Accepted: 02/25/2008] [Indexed: 11/16/2022] Open
Abstract
The effects of anonaine, an aporphine isoquinoline alkaloid, on dopamine biosynthesis and L-DOPA-induced cytotoxicity in PC12 cells were investigated. Anonaine at concentration ranges of 0.01-0.2 microM showed a significant inhibition of dopamine content at 24 h, with an IC(50) value of 0.05 microM. Anonaine at 0.05 microM inhibited tyrosine hydroxylase (TH) and aromatic L-amino acid decarboxylase (AADC) activities to 38.4-40.2% and 78.4-90.2% of control levels at 12-24 h and 3-6 h, respectively. TH activity was more influenced than AADC activity. Anonaine also decreased intracellular cyclic AMP levels, but not intracellular Ca(2+) concentrations. In addition, anonaine (0.05 microM) reduced L-DOPA (50 microM and 100 microM)-induced increases in dopamine content at 24 h. However, anonaine (0.05 microM) did not enhance L-DOPA (50 microM and 100 microM)-induced cell death after 24 h. These results suggest that anonaine inhibits dopamine biosynthesis by mainly reducing TH activity without aggravating L-DOPA-induced cytotoxicity in PC12 cells.
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Affiliation(s)
- Jae Joon Lee
- College of Pharmacy and Research Center for Bioresource and Health, Chungbuk National University, 12, Gaeshin-dong, Heungduk-gu, Cheongju 361-763, Korea; E-mail: (Jae Joon Lee); (Chun Mei Jin); (Sung Cil Lim)
| | - Chun Mei Jin
- College of Pharmacy and Research Center for Bioresource and Health, Chungbuk National University, 12, Gaeshin-dong, Heungduk-gu, Cheongju 361-763, Korea; E-mail: (Jae Joon Lee); (Chun Mei Jin); (Sung Cil Lim)
| | - Young Kyoon Kim
- College of Forest Science, Kookmin University, Seoul 136-702, Korea; E-mail: (Young Kyoon Kim)
| | - Shi Yong Ryu
- Korea Research Institute of Chemical Technology, Taejeon 305-606, Korea; E-mail: (Shi Yong Ryu)
| | | | - Myung Koo Lee
- College of Pharmacy and Research Center for Bioresource and Health, Chungbuk National University, 12, Gaeshin-dong, Heungduk-gu, Cheongju 361-763, Korea; E-mail: (Jae Joon Lee); (Chun Mei Jin); (Sung Cil Lim)
- Author to whom correspondence should be addressed. E-Mail: ; Tel: +82-43-262-2822, Fax: +82-43-276-2754
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