1
|
Cheng T, Lin J, Zhou X, Wang H, Zhou X, Huang X, Chen T. Integrative metabolomics and transcriptomics profiling reveals differential expression of flavonoid synthesis in Ophiopogon japonicus (L. f.) Ker-Gawl. in adaptation to drought. PLoS One 2025; 20:e0313580. [PMID: 39774546 PMCID: PMC11706389 DOI: 10.1371/journal.pone.0313580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Accepted: 10/26/2024] [Indexed: 01/11/2025] Open
Abstract
Drought is one of the consequences of climate change that severely affects plant growth and development. Ophiopogon japonicus (L. f.) Ker-Gawl. (Chinese name: Chuanmaidong, abbreviated as CMD) is a commonly used herbaceous plant whose growth and development are strongly affected by drought. Here, we comprehensively analyzed the transcriptomic and metabolic responses of two CMD varieties (EP and CP) to drought stress. CP utilized a small number of differentially expressed genes to regulate a greater number of differential metabolites compared to EP, suggesting that it may be more drought tolerant. In addition, integrated transcriptome and metabolome analyses revealed that transcription factors such as WRKY, TIFY, and C2H2 regulate flavonoid synthesis in CMD. These findings provide ideas for in-depth analysis of the mechanism of CMD against drought stress, and provide a theoretical basis for breeding high-quality drought-tolerant varieties.
Collapse
Affiliation(s)
- Tingting Cheng
- Sichuan Academy of Chinese Medicine Sciences, Chengdu, China
| | - Juan Lin
- Sichuan Academy of Chinese Medicine Sciences, Chengdu, China
| | - Xia Zhou
- Sichuan Academy of Chinese Medicine Sciences, Chengdu, China
| | - Hongsu Wang
- Sichuan Academy of Chinese Medicine Sciences, Chengdu, China
| | - Xianjian Zhou
- Sichuan Academy of Chinese Medicine Sciences, Chengdu, China
| | - Xiaopeng Huang
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Tiezhu Chen
- Sichuan Academy of Chinese Medicine Sciences, Chengdu, China
- Sichuan Provincial Key Laboratory of Quality and Innovation Research of Chinese Materia Medica, Chengdu, China
| |
Collapse
|
2
|
Nan N, Yang Y, Fu X, Xian S, Wu Q, Shi J, Zhou S. Dendrobium nobile Lindl. alkaloids protect CCl 4-induced acute liver injury via upregulating LAMP1 expression and activating autophagy flux. J Nat Med 2025; 79:180-195. [PMID: 39546174 DOI: 10.1007/s11418-024-01852-9] [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: 05/02/2024] [Accepted: 09/27/2024] [Indexed: 11/17/2024]
Abstract
Dendrobium nobile Lindl. alkaloids (DNLA) are considered important active ingredients of Dendrobium, which have a variety of pharmacological functions. Recent studies indicate that DNLA has beneficial activity in acute liver injury. However, the specific mechanism by which DNLA produces liver protective effects is stills unclear. This study was designed to determine whether regulation of autophagy is involved in the mode of action of DNLA in liver protection. Using CCl4-induced acute liver injury (ALI) and cell culture models, the molecular mechanism of DNLA-mediated autophagy regulation was studied. The results showed that DNLA significantly improved CCl4-induced liver damage and oxidative stress, which was confirmed in AML-12 cells. DNLA promoted autophagy in cells treated with CCl4, manifested by reduced protein expressions of p62 and LC3-II. Fluorescence imaging showed a decrease in the number of autophagosomes in AML-12 cells transfected with mCherry-GFP-LC3B. In addition, DNLA inhibited lysosomal membrane permeabilization by upregulating lysosomal associated membrane protein-1 (LAMP1), thereby promoting autophagy, preventing CCl4-induced mitochondrial dysfunction, and reducing the production of mitochondrial reactive oxygen species (ROS). While pretreatment of cells with lysosomal inhibitor chloroquine weakened mitochondrial protection elicited by DNLA, overexpression of mitochondrial-targeted SOD2 in AML-12 cells significantly blocked CCl4 induced downregulation of LAMP1, thereby improving lysosome integrity and promoting lysosome dependent autophagy, suggesting that there may exist a bidirectional regulation between mitochondrial ROS and lysosome-autophagy activation. Collectively, these results demonstrated that DNLA can protect the liver injury mediated by dysregulation of lysosome-autophagy process through promoting ROS-lysosome-autophagy axis and improving mitochondrial damage.
Collapse
Affiliation(s)
- Nan Nan
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, Guizhou, China
- School of Pharmacy, Zunyi Medical University, Zunyi, Guizhou, China
| | - Yonggang Yang
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, Guizhou, China
- School of Pharmacy, Zunyi Medical University, Zunyi, Guizhou, China
| | - Xiaolong Fu
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, Guizhou, China
- School of Pharmacy, Zunyi Medical University, Zunyi, Guizhou, China
| | - Siting Xian
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, Guizhou, China
- School of Pharmacy, Zunyi Medical University, Zunyi, Guizhou, China
| | - Qin Wu
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, Guizhou, China
- School of Pharmacy, Zunyi Medical University, Zunyi, Guizhou, China
| | - Jingshan Shi
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, Guizhou, China
- School of Pharmacy, Zunyi Medical University, Zunyi, Guizhou, China
| | - Shaoyu Zhou
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, Guizhou, China.
- School of Pharmacy, Zunyi Medical University, Zunyi, Guizhou, China.
| |
Collapse
|
3
|
Wang X, Liang G, Zhou Y, Ni B, Zhou X. Ameliorative effect and mechanism of ursodeoxycholic acid on hydrogen peroxide-induced hepatocyte injury. Sci Rep 2024; 14:4446. [PMID: 38395998 PMCID: PMC10891090 DOI: 10.1038/s41598-024-55043-3] [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: 11/25/2023] [Accepted: 02/20/2024] [Indexed: 02/25/2024] Open
Abstract
To assess the ameliorative effect of ursodeoxycholic acid (UDCA) on hydrogen peroxide (H2O2)-induced hepatocyte injury. In our in vivo experiments, we modelled hyperlipidemia in ApoE-/- mice subjected to a 3-month high-fat diet and found that HE staining of the liver showed severe liver injury and excessive H2O2 was detected in the serum. We modelled oxidative stress injury in L02 cells by H2O2 in vitro and analyzed the levels of reactive oxygen species (ROS), malondialdehyde (MDA), superoxide dismutase (SOD) and related genes. UDCA significantly improved the level of oxidative stress in H2O2-injured L02 cells (P < 0.05). In addition, UDCA improved the transcription levels of inflammation and oxidative stress-related genes (P < 0.05), showing anti-inflammatory and anti-oxidative stress effects. UDCA has a protective effect on H2O2-damaged L02 cells, which lays a theoretical foundation for its application development.
Collapse
Affiliation(s)
- Xueqin Wang
- Department of Thyroid Surgery, Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
- Center for Endocrine and Thyroid Diseases, Deyang People's Hospital, Deyang, 618000, Sichuan, China
| | - Guangxi Liang
- Center for Endocrine and Thyroid Diseases, Deyang People's Hospital, Deyang, 618000, Sichuan, China
| | - Yang Zhou
- Department of Vascular Surgery, Deyang People's Hospital, Deyang, 618000, Sichuan, China
| | - Banggao Ni
- Center for Endocrine and Thyroid Diseases, Deyang People's Hospital, Deyang, 618000, Sichuan, China
| | - Xiangyu Zhou
- Department of Thyroid Surgery, Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China.
| |
Collapse
|
4
|
Lei F, Weckerle CS, Heinrich M. Liriopogons (Genera Ophiopogon and Liriope, Asparagaceae): A Critical Review of the Phytochemical and Pharmacological Research. Front Pharmacol 2021; 12:769929. [PMID: 34925027 PMCID: PMC8678496 DOI: 10.3389/fphar.2021.769929] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 10/29/2021] [Indexed: 11/13/2022] Open
Abstract
The closely related genera Liriope and Ophiopogon (Asparagaceae), collectively known in English as liriopogons, have similar therapeutic uses in treating cough, rheumatoid arthritis, and cleaning heat. The main aim of this review is to understand the current phytochemical and pharmacological knowledge including an assessment of the quality of the scientific evidence. A literature search was conducted in line with PRISMA guidelines, by retrieving available information up to 2020 from five online resources. The bioactive metabolites of liriopogons include steroidal saponins, flavonoids, polysaccharides, organic acids, phenols. Cardiovascular protective, anti-inflammatory, anti-diabetic, anti-oxidant, anti-cancer, neuroprotective, anti-viral, anti-acute myeloid leukemia and hepatoprotective effects have been at the center of attention. From a toxicological perspective Ophiopogon japonicus seems to be safe. Some problems with the quality of the pharmacological evidence stand out including the application of excessive dose level and methodological problems in the design. Additionally, a reasonable link between local/traditional uses and pharmacological assessment is often vague or not reflected in the text. Future researches on liriopogons are required to use rigorous scientific approaches in research on evidence-based natural products for the future benefits of patients.
Collapse
Affiliation(s)
- Feiyi Lei
- Department of Systematic and Evolutionary Botany, University of Zurich, Zurich, Switzerland
| | - Caroline S Weckerle
- Department of Systematic and Evolutionary Botany, University of Zurich, Zurich, Switzerland
| | - Michael Heinrich
- Research Group 'Pharmacognosy and Phytotherapy', UCL School of Pharmacy, University of London, London, United Kingdom
| |
Collapse
|
5
|
Shivappagowdar A, Pati S, Narayana C, Ayana R, Kaushik H, Sah R, Garg S, Khanna A, Kumari J, Garg L, Sagar R, Singh S. A small bioactive glycoside inhibits epsilon toxin and prevents cell death. Dis Model Mech 2019; 12:dmm.040410. [PMID: 31492678 PMCID: PMC6826021 DOI: 10.1242/dmm.040410] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Accepted: 08/23/2019] [Indexed: 12/24/2022] Open
Abstract
Clostridium perfringens epsilon toxin (Etx) is categorized as the third most lethal bioterrorism agent by the Centers for Disease Control and Prevention (CDC), with no therapeutic counter measures available for humans. Here, we have developed a high-affinity inhibitory compound by synthesizing and evaluating the structure activity relationship (SAR) of a library of diverse glycosides (numbered 1-12). SAR of glycoside-Etx heptamers revealed exceptionally strong H-bond interactions of glycoside-4 with a druggable pocket in the oligomerization and β-hairpin region of Etx. Analysis of its structure suggested that glycoside-4 might self-aggregate to form a robust micelle-like supra-molecular complex due to its linear side-chain architecture, which was authenticated by fluorescence spectroscopy. Further, this micelle hinders the Etx monomer-monomer interaction required for oligomerization, validated by both surface plasmon resonance (SPR) and immunoblotting. This phenomenon in turn leads to blockage of pore formation. Downstream evaluation revealed that glycoside-4 effectively blocked cell death of Etx-treated cultured primary cells and maintained cellular homeostasis via disrupting oligomerization, blocking pore formation, restoring calcium homeostasis, stabilizing the mitochondrial membrane and impairing high mobility group box 1 (HMGB1) translocation from nucleus to cytoplasm. Furthermore, a single dosage of glycoside-4 protected the Etx-challenged mice and restored normal function to multiple organs. This work reports for the first time a potent, nontoxic glycoside with strong ability to occlude toxin lethality, representing it as a bio-arm therapeutic against Etx-based biological threat.
Collapse
Affiliation(s)
- Abhishek Shivappagowdar
- Department of Life Sciences, School of Natural Sciences, Shiv Nadar University, Greater Noida, Uttar Pradesh 201314, India
| | - Soumya Pati
- Department of Life Sciences, School of Natural Sciences, Shiv Nadar University, Greater Noida, Uttar Pradesh 201314, India
| | - Chintam Narayana
- Department of Chemistry, School of Natural Sciences, Shiv Nadar University, Greater Noida, Uttar Pradesh 201314, India
| | - Rajagopal Ayana
- Department of Life Sciences, School of Natural Sciences, Shiv Nadar University, Greater Noida, Uttar Pradesh 201314, India
| | - Himani Kaushik
- Gene Regulation Laboratory, National Institute of Immunology, New Delhi 110067, India
| | - Raj Sah
- Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi 110067, India
| | - Swati Garg
- Department of Life Sciences, School of Natural Sciences, Shiv Nadar University, Greater Noida, Uttar Pradesh 201314, India
| | - Ashish Khanna
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Jyoti Kumari
- Department of Life Sciences, School of Natural Sciences, Shiv Nadar University, Greater Noida, Uttar Pradesh 201314, India
| | - Lalit Garg
- Gene Regulation Laboratory, National Institute of Immunology, New Delhi 110067, India
| | - Ram Sagar
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Shailja Singh
- Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi 110067, India
| |
Collapse
|
6
|
Salazar-Coria L, Rocha-Gómez MA, Matadamas-Martínez F, Yépez-Mulia L, Vega-López A. Proteomic analysis of oxidized proteins in the brain and liver of the Nile tilapia (Oreochromis niloticus) exposed to a water-accommodated fraction of Maya crude oil. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 171:609-620. [PMID: 30658296 DOI: 10.1016/j.ecoenv.2019.01.033] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 12/19/2018] [Accepted: 01/09/2019] [Indexed: 06/09/2023]
Abstract
Crude oil (CO) is a super mixture of chemical compounds whose toxic effects are reported in fish species according to international guidelines. In the current study a proteomic analysis of oxidized proteins (ox) was performed on the brain and liver of Nile tilapia exposed to WAF obtained from relevant environmental loads (0.01, 0.1 and 1.0 g/L) of Maya CO. Results have shown that oxidation of specific proteins was a newly discovered organ-dependent process able to disrupt key functions in Nile tilapia. In control fish, enzymes involved on aerobic metabolism (liver aldehyde dehydrogenase and brain dihydrofolate reductase) and liver tryptophan--tRNA ligase were oxidized. In WAF-treated liver specimens, fructose-bisphosphate aldolase (FBA), β-galactosidase (β-GAL) and dipeptidyl peptidase 9 (DPP-9) were detected in oxidized form. oxDPP-9 could be favorable by reducing the risk associated with altered glucose metabolism, the opposite effects elicited by oxFBA and oxβ-GAL. oxTrypsin showed a clear adverse effect by reducing probably the hepatocyte capacity to achieve proteolysis of oxidized proteins as well as for performing the proper digestive function. Additionally, enzyme implicated in purine metabolism adenosine (deaminase) was oxidized. Cerebral enzymes of mitochondrial respiratory chain complex (COX IV, COX5B), of glycosphingolipid biosynthesis (β-N-acetylhexosaminidase), involved in catecholamines degradation (catechol O-methyltransferase), and microtubule cytoskeleton (stathmin) were oxidized in WAF-treated specimens. This response suggests, in the brain, an adverse scenario for the mitochondrial respiration process and for ATP provision as for ischemia/reoxygenation challenges. Proteomic analysis of oxidized proteins is a promising tool for monitoring environmental quality influenced by hydrocarbons dissolved in water.
Collapse
Affiliation(s)
- Lucía Salazar-Coria
- Instituto Politécnico Nacional, Escuela Nacional de Ciencias Biológicas, Laboratorio de Toxicología Ambiental, Av. Wilfrido Massieu s/n, Unidad Profesional Zacatenco, 07738 Mexico City, Mexico
| | - María Alejandra Rocha-Gómez
- Instituto Politécnico Nacional, Escuela Nacional de Ciencias Biológicas, Laboratorio de Toxicología Ambiental, Av. Wilfrido Massieu s/n, Unidad Profesional Zacatenco, 07738 Mexico City, Mexico
| | - Félix Matadamas-Martínez
- Unidad de Investigación Médica en Enfermedades Infecciosas y Parasitarias, UMAE Hospital de Pediatría, Centro Médico Siglo XXI, Instituto Mexicano del Seguro Social, 06720 Mexico City, Mexico
| | - Lilián Yépez-Mulia
- Unidad de Investigación Médica en Enfermedades Infecciosas y Parasitarias, UMAE Hospital de Pediatría, Centro Médico Siglo XXI, Instituto Mexicano del Seguro Social, 06720 Mexico City, Mexico
| | - Armando Vega-López
- Instituto Politécnico Nacional, Escuela Nacional de Ciencias Biológicas, Laboratorio de Toxicología Ambiental, Av. Wilfrido Massieu s/n, Unidad Profesional Zacatenco, 07738 Mexico City, Mexico.
| |
Collapse
|
7
|
Xu Z, Zhang Y, Zhang S, Jia X, Zhong G, Yang Y, Du Q, Li J, Liu Z. Novel half-sandwich iridium OˆC (carbene)-Complexes: In vitro and in vivo tumor growth suppression and pro-apoptosis via ROS-mediated cross-talk between mitochondria and lysosomes. Cancer Lett 2019; 447:75-85. [DOI: 10.1016/j.canlet.2019.01.018] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Revised: 01/08/2019] [Accepted: 01/17/2019] [Indexed: 12/20/2022]
|
8
|
BODIPY-derived ratiometric fluorescent sensors: pH-regulated aggregation-induced emission and imaging application in cellular acidification triggered by crystalline silica exposure. Sci China Chem 2018. [DOI: 10.1007/s11426-018-9284-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
|
9
|
Liu W, Li X, Zhou B, Fang S, Ho W, Chen H, Liang H, Ye L, Tang J. Differential induction of apoptosis and autophagy by pyrrolizidine alkaloid clivorine in human hepatoma Huh-7.5 cells and its toxic implication. PLoS One 2017. [PMID: 28650983 PMCID: PMC5484491 DOI: 10.1371/journal.pone.0179379] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Growing evidence suggests that the pyrrolizidine alkaloids (PAs)-induced hepatotoxicity is mediated by multiple cell death/defence modalities. However, the detailed mechanisms are still lacking. In this study, the hepatotoxic effects of four PAs including three retronecine-type ones (senecionine, seneciphylline and monocrotaline) and one otonecine-type (clivorine) on the proliferation of Huh-7.5 cells and the possible mechanisms were investigated. The results showed that all the PAs could inhibit cell proliferation and induce apoptosis in a concentration-dependent manner. Among them clivorine was the most significant one. In addition to its effect on apoptosis, clivorine treatment could promote autophagy in Huh-7.5 cells, as evidenced by the accumulation of autophagosomes, the enhancement of LC3B expression at the concentrations close to its IC0 value, and the increased conversion of LC3B-I to LC3B-II in the presence of lysosomal inhibitor (chloroquine) and decreased formation of green fluorescent protein (GFP)-LC3 positive puncta in the presence of autophagic sequestration inhibitor (3-methyladenine). Among the other tested PAs, senecionine and seneciphylline also activated autophagy at the same concentrations used for clivorine but monocrotaline did not. Furthermore, our study demonstrated that suppression or enhancement of autophagy resulted in the remarkable enhancement or suppression of senecionine, seneciphylline and clivorine-induced apoptosis at the concentration close to the IC10 for clivorine, respectively, indicating a protective role of autophagy against the PA-induced apoptosis at the low level of exposure. Collectively, our data suggest that PAs in different structures may exert different toxic disturbances on the liver cells. Apoptosis may be one of the most common models of the PA-induced cytotoxicity, while autophagy may be a structure-dependent defence model in the early stage of PA intoxication. Differential induction of apoptosis and autophagy probably depending on the concentration is essential for the cytotoxic potency of clivorine.
Collapse
Affiliation(s)
- Wenju Liu
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Wuhan University), Ministry of Education, and Wuhan University School of Pharmaceutical Sciences, Wuhan, P. R. China
| | - Xu Li
- Guangxi Key Laboratory of AIDS Prevention and Treatment & Guangxi Collaborative Innovation Centre for Biomedicine, School of Public Health, Guangxi Medical University, Nanning City, Guangxi, P. R. China
| | - Bo Zhou
- Guangxi Key Laboratory of AIDS Prevention and Treatment & Guangxi Collaborative Innovation Centre for Biomedicine, School of Public Health, Guangxi Medical University, Nanning City, Guangxi, P. R. China
| | - Shoucai Fang
- Guangxi Key Laboratory of AIDS Prevention and Treatment & Guangxi Collaborative Innovation Centre for Biomedicine, School of Public Health, Guangxi Medical University, Nanning City, Guangxi, P. R. China
| | - Wenzhe Ho
- Department of Pathology and Laboratory Medicine, Temple University School of Medicine, Philadelphia, PA, United States of America
| | - Hui Chen
- Geriatrics Digestion Department of Internal Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning City, Guangxi, P. R. China
| | - Hao Liang
- Guangxi Key Laboratory of AIDS Prevention and Treatment & Guangxi Collaborative Innovation Centre for Biomedicine, School of Public Health, Guangxi Medical University, Nanning City, Guangxi, P. R. China
| | - Li Ye
- Guangxi Key Laboratory of AIDS Prevention and Treatment & Guangxi Collaborative Innovation Centre for Biomedicine, School of Public Health, Guangxi Medical University, Nanning City, Guangxi, P. R. China
- * E-mail: (JT); (LY)
| | - Jun Tang
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Wuhan University), Ministry of Education, and Wuhan University School of Pharmaceutical Sciences, Wuhan, P. R. China
- * E-mail: (JT); (LY)
| |
Collapse
|
10
|
Schnettger L, Rodgers A, Repnik U, Lai RP, Pei G, Verdoes M, Wilkinson RJ, Young DB, Gutierrez MG. A Rab20-Dependent Membrane Trafficking Pathway Controls M. tuberculosis Replication by Regulating Phagosome Spaciousness and Integrity. Cell Host Microbe 2017; 21:619-628.e5. [PMID: 28494243 PMCID: PMC5432432 DOI: 10.1016/j.chom.2017.04.004] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Revised: 01/19/2017] [Accepted: 04/20/2017] [Indexed: 12/01/2022]
Abstract
The intracellular pathogen Mycobacterium tuberculosis (Mtb) lives within phagosomes and also disrupts these organelles to access the cytosol. The host pathways and mechanisms that contribute to maintaining Mtb phagosome integrity have not been investigated. Here, we examined the spatiotemporal dynamics of Mtb-containing phagosomes and identified an interferon-gamma-stimulated and Rab20-dependent membrane trafficking pathway in macrophages that maintains Mtb in spacious proteolytic phagolysosomes. This pathway functions to promote endosomal membrane influx in infected macrophages, and is required to preserve Mtb phagosome integrity and control Mtb replication. Rab20 is specifically and significantly upregulated in the sputum of human patients with active tuberculosis. Altogether, we uncover an immune-regulated cellular pathway of defense that promotes maintenance of Mtb within intact membrane-bound compartments for efficient elimination.
Collapse
Affiliation(s)
- Laura Schnettger
- Host-Pathogen Interactions In Tuberculosis Laboratory, The Francis Crick Institute, 1 Midland Road, London NW1 1AT, UK
| | - Angela Rodgers
- Mycobacterial Systems Biology Laboratory, The Francis Crick Institute, 1 Midland Road, London NW1 1AT, UK
| | - Urska Repnik
- Department of Biosciences, University of Oslo, Blindernveien 31, 0371 Oslo, Norway
| | - Rachel P Lai
- Tuberculosis Laboratory, The Francis Crick Institute, 1 Midland Road, London NW1 1AT, UK
| | - Gang Pei
- Department of Immunology, Max Planck Institute for Infection Biology, Charitéplatz 1, 10117 Berlin, Germany
| | - Martijn Verdoes
- Radboud Institute for Molecular Life Sciences (RIMLS), Geert Grooteplein 26/28, Nijmegen 6525 GA, the Netherlands
| | - Robert J Wilkinson
- Tuberculosis Laboratory, The Francis Crick Institute, 1 Midland Road, London NW1 1AT, UK
| | - Douglas B Young
- Mycobacterial Systems Biology Laboratory, The Francis Crick Institute, 1 Midland Road, London NW1 1AT, UK
| | - Maximiliano G Gutierrez
- Host-Pathogen Interactions In Tuberculosis Laboratory, The Francis Crick Institute, 1 Midland Road, London NW1 1AT, UK.
| |
Collapse
|
11
|
Zhao M, Xu WF, Shen HY, Shen PQ, Zhang J, Wang DD, Xu H, Wang H, Yan TT, Wang L, Hao HP, Wang GJ, Cao LJ. Comparison of bioactive components and pharmacological activities of ophiopogon japonicas extracts from different geographical origins. J Pharm Biomed Anal 2017; 138:134-141. [DOI: 10.1016/j.jpba.2017.02.013] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Revised: 02/04/2017] [Accepted: 02/06/2017] [Indexed: 12/26/2022]
|
12
|
Zhao P, Ye T, Yan X, Hu X, Liu P, Wang X. HMGB1 release by H 2O 2-induced hepatocytes is regulated through calcium overload and 58-F interference. Cell Death Discov 2017; 3:17008. [PMID: 28417016 PMCID: PMC5385391 DOI: 10.1038/cddiscovery.2017.8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Accepted: 01/10/2017] [Indexed: 12/14/2022] Open
Abstract
HMGB1 is passively released by injured or dying cells and aggravates inflammatory processes. The release of HMGB1 and calcium overload have each been reported to be important mediators of H2O2-induced injury. However, a potential connection between these two processes remains to be elucidated. In the present study, we employed H2O2-induced hepatocytes to investigate how calcium overload takes place during cellular injury and how the extracellular release of HMGB1 is regulated by this overload. In addition, we investigated the use of 58-F, a flavanone extracted from Ophiopogon japonicus, as a potential therapeutic drug. We show that the PLCγ1-IP3R-SOC signalling pathway participates in the H2O2-induced disturbance of calcium homoeostasis and leads to calcium overload in hepatocytes. After a rise in intracellular calcium, two calcium-dependent enzymes, PKCα and CaMKIV, are activated and translocated from the cytoplasm to the nucleus to modify HMGB1 phosphorylation. In turn, this promotes HMGB1 translocation from the nucleus to the cytoplasm and subsequent extracellular release. 58-F effectively rescued the hepatocytes by suppressing the PLCγ1-IP3R-SOC signalling pathway and decreasing the calcium concentration in cells, thus reducing HMGB1 release.
Collapse
Affiliation(s)
- Pei Zhao
- The Public Experiment Platform, School of Basic Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Tingjie Ye
- Department of Biology, School of Basic Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Xiaofeng Yan
- Department of Biology, School of Basic Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Xudong Hu
- Department of Biology, School of Basic Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Ping Liu
- Key Laboratory of Liver and Kidney Diseases (Ministry of Education), Institute of Liver Diseases, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.,E-institute of Shanghai Municipal Education Commission, Shanghai 201203, China
| | - Xiaoling Wang
- Department of Biology, School of Basic Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| |
Collapse
|