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Guo M, Ruan W, Li R, Xu L, Hani S, Zhang Q, David P, Ren J, Zheng B, Nussaume L, Yi K. Visualizing plant intracellular inorganic orthophosphate distribution. NATURE PLANTS 2024; 10:315-326. [PMID: 38195907 DOI: 10.1038/s41477-023-01612-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Accepted: 12/13/2023] [Indexed: 01/11/2024]
Abstract
Intracellular inorganic orthophosphate (Pi) distribution and homeostasis profoundly affect plant growth and development. However, its distribution patterns remain elusive owing to the lack of efficient cellular Pi imaging methods. Here we develop a rapid colorimetric Pi imaging method, inorganic orthophosphate staining assay (IOSA), that can semi-quantitatively image intracellular Pi with high resolution. We used IOSA to reveal the alteration of cellular Pi distribution caused by Pi starvation or mutations that alter Pi homeostasis in two model plants, rice and Arabidopsis, and found that xylem parenchyma cells and basal node sieve tube element cells play a critical role in Pi homeostasis in rice. We also used IOSA to screen for mutants altered in cellular Pi homeostasis. From this, we have identified a novel cellular Pi distribution regulator, HPA1/PHO1;1, specifically expressed in the companion and xylem parenchyma cells regulating phloem Pi translocation from the leaf tip to the leaf base in rice. Taken together, IOSA provides a powerful method for visualizing cellular Pi distribution and facilitates the analysis of Pi signalling and homeostasis from the level of the cell to the whole plant.
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Affiliation(s)
- Meina Guo
- State Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China/Key Laboratory of Plant Nutrition and Fertilizer, Ministry of Agriculture, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, China
- State Key Laboratory of Efficient Production of Forest Resources/ National Engineering Research Center of Tree Breeding and Ecological Restoration, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, People's Republic of China
| | - Wenyuan Ruan
- State Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China/Key Laboratory of Plant Nutrition and Fertilizer, Ministry of Agriculture, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, China.
| | - Ruili Li
- State Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China/Key Laboratory of Plant Nutrition and Fertilizer, Ministry of Agriculture, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Lei Xu
- State Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China/Key Laboratory of Plant Nutrition and Fertilizer, Ministry of Agriculture, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Sahar Hani
- EBMP (Environnement, Bioénergies, Microalgues et Plantes), Aix Marseille Univ, CEA, CNRS, UMR7265, BIAM, Saint-Paul lez Durance, France
| | - Qianqian Zhang
- State Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China/Key Laboratory of Plant Nutrition and Fertilizer, Ministry of Agriculture, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Pascale David
- EBMP (Environnement, Bioénergies, Microalgues et Plantes), Aix Marseille Univ, CEA, CNRS, UMR7265, BIAM, Saint-Paul lez Durance, France
| | - Jianhao Ren
- State Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China/Key Laboratory of Plant Nutrition and Fertilizer, Ministry of Agriculture, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Bingsong Zheng
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, China
| | - Laurent Nussaume
- EBMP (Environnement, Bioénergies, Microalgues et Plantes), Aix Marseille Univ, CEA, CNRS, UMR7265, BIAM, Saint-Paul lez Durance, France
| | - Keke Yi
- State Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China/Key Laboratory of Plant Nutrition and Fertilizer, Ministry of Agriculture, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, China.
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Wu H, Zhang Q, Gao J, Sun C, Wang J, Xia W, Cao Y, Hao Y, Wu L. Modulation of sphingosine 1-phosphate (S1P) attenuates spatial learning and memory impairments in the valproic acid rat model of autism. Psychopharmacology (Berl) 2018; 235:873-886. [PMID: 29218394 DOI: 10.1007/s00213-017-4805-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Accepted: 11/27/2017] [Indexed: 12/26/2022]
Abstract
RATIONALE Autism spectrum disorders (ASD) are a set of pervasive neurodevelopmental disorders that manifest in early childhood, and it is growing up to be a major cause of disability in children. However, the etiology and treatment of ASD are not well understood. In our previous study, we found that serum levels of sphingosine 1-phosphate (S1P) were increased significantly in children with autism, indicating that S1P levels may be involved in ASD. OBJECTIVE The objective of this study was to identify a link between increased levels of S1P and neurobehavioral changes in autism. METHODS We utilized a valproic acid (VPA) -induced rat model of autism to evaluate the levels of S1P and the expression of sphingosine kinase (SphK), a key enzyme for S1P production, in serum and hippocampal tissue. Furthermore, we assessed cognitive functional changes and histopathological and neurochemical alterations in VPA-exposed rats after SphK blockade to explore the possible link between increased levels of S1P and neurobehavioral changes in autism. RESULTS We found that SphK2 and S1P are upregulated in hippocampal tissue from VPA-exposed rats, while pharmacological inhibition of SphK reduced S1P levels, attenuated spatial learning and memory impairments, increased the expression of phosphorylated CaMKII and CREB and autophagy-related proteins, inhibited cytochrome c release, decreased the expression of apoptosis related proteins, and protected against neuronal loss in the hippocampus. CONCLUSION We have demonstrated that an increased level of SphK2/S1P is involved in the spatial learning and memory impairments of autism, and this signaling pathway represents a novel therapeutic target and direction for future studies.
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Affiliation(s)
- Hongmei Wu
- Department of Nursing, Harbin Medical University in Daqing, Daqing, Heilongjiang, 163319, China
| | - Quanzhi Zhang
- Department of Nursing, Harbin Medical University in Daqing, Daqing, Heilongjiang, 163319, China.,Department of Child and Adolescent Health, School of Public Health, Harbin Medical University, 157 Baojian Road, Nangang District, Harbin, Heilongjiang, 150081, China
| | - Jingquan Gao
- Department of Nursing, Harbin Medical University in Daqing, Daqing, Heilongjiang, 163319, China
| | - Caihong Sun
- Department of Child and Adolescent Health, School of Public Health, Harbin Medical University, 157 Baojian Road, Nangang District, Harbin, Heilongjiang, 150081, China
| | - Jia Wang
- Department of Child and Adolescent Health, School of Public Health, Harbin Medical University, 157 Baojian Road, Nangang District, Harbin, Heilongjiang, 150081, China
| | - Wei Xia
- Department of Child and Adolescent Health, School of Public Health, Harbin Medical University, 157 Baojian Road, Nangang District, Harbin, Heilongjiang, 150081, China
| | - Yonggang Cao
- Department of Pharmacology, Harbin Medical University in Daqing, Daqing, Heilongjiang, 163319, China
| | - Yanqiu Hao
- Department of pediatrics, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, 150081, China
| | - Lijie Wu
- Department of Child and Adolescent Health, School of Public Health, Harbin Medical University, 157 Baojian Road, Nangang District, Harbin, Heilongjiang, 150081, China.
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Zhao H, Liu A, Shen L, Xu C, Zhu Z, Yang J, Han X, Bao F, Yang W. Isoforskolin downregulates proinflammatory responses induced by Borrelia burgdorferi basic membrane protein A. Exp Ther Med 2017; 14:5974-5980. [PMID: 29285146 PMCID: PMC5740510 DOI: 10.3892/etm.2017.5300] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Accepted: 08/10/2017] [Indexed: 01/13/2023] Open
Abstract
The plant Coleus forskohlii is distributed primarily in India, Thailand, China, Egypt and Brazil and has a history of use in the treatment of multiple diseases. Isoforskolin (ISOF) is the principle active component of C. forskohlii native to China and has previously been studied for its biological effects. The aim of the present study was to evaluate the effect of ISOF on the proinflammatory responses induced by recombinant Borrelia burgdorferi basic membrane protein A (rBmpA). In in vitro experiments, the proinflammatory effects of rBmpA and the anti-inflammatory function of ISOF were evaluated in murine macrophages, human macrophages and dendritic cells by detecting the transcription and expression of tumor necrosis factor (TNF)-α and interleukin (IL)-6. In in vivo experiments, mean arthritis index and X-ray and histopathological examinations were used to verify the role of ISOF in experimental Lyme arthritis in mice. The results indicated that rBmpA, which induced the transcription and expression of TNF-α and IL-6, activated proinflammatory responses in murine macrophages, human macrophages and dendritic cells. In turn, ISOF downregulated the transcription and expression of TNF-α and IL-6 induced by rBmpA. Additionally, the in vivo experiments demonstrated that ISOF could also inhibit the symptoms of experimental Lyme arthritis. These results suggest that ISOF may have a potential application as an anti-inflammatory agent for the treatment of Lyme arthritis.
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Affiliation(s)
- Hua Zhao
- Department of Microbiology and Immunology, Kunming Medical University, Kunming, Yunnan 650500, P.R. China
| | - Aihua Liu
- Department of Biochemistry and Molecular Biology, Kunming Medical University, Kunming, Yunnan 650500, P.R. China.,Institute for Tropical Medicine, Kunming Medical University, Kunming, Yunnan 650500, P.R. China
| | - Longqiang Shen
- Department of Biochemistry and Molecular Biology, Kunming Medical University, Kunming, Yunnan 650500, P.R. China
| | - Cuiping Xu
- Department of Biochemistry and Molecular Biology, Kunming Medical University, Kunming, Yunnan 650500, P.R. China
| | - Ziwei Zhu
- Department of Microbiology and Immunology, Kunming Medical University, Kunming, Yunnan 650500, P.R. China
| | - Jiaru Yang
- Department of Biochemistry and Molecular Biology, Kunming Medical University, Kunming, Yunnan 650500, P.R. China
| | - Xinling Han
- Department of Microbiology and Immunology, Kunming Medical University, Kunming, Yunnan 650500, P.R. China
| | - Fukai Bao
- Department of Microbiology and Immunology, Kunming Medical University, Kunming, Yunnan 650500, P.R. China.,Institute for Tropical Medicine, Kunming Medical University, Kunming, Yunnan 650500, P.R. China
| | - Weimin Yang
- School of Pharmaceutical Science and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, Yunnan 650500, P.R. China
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Liang X, Wang J, Chen W, Ma X, Wang Y, Nagao N, Weng W, Huang J, Liu J. Inhibition of airway remodeling and inflammation by isoforskolin in PDGF-induced rat ASMCs and OVA-induced rat asthma model. Biomed Pharmacother 2017; 95:275-286. [PMID: 28850927 DOI: 10.1016/j.biopha.2017.08.063] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Revised: 08/11/2017] [Accepted: 08/11/2017] [Indexed: 12/28/2022] Open
Abstract
Isoforskolin (ISOF) has been reported to play an important role in many illnesses including respiratory, cardiovascular and ophthalmologic diseases. In our study, we aimed to investigate how ISOF regulates airway remodeling and inflammation in asthma. Based on SO2-stimulated mouse cough model, we assessed the role of ISOF in cough and secretion of phlegm. Afterwards, platelet derived growth factor (PDGF)-induced primary rat airway smooth muscle cell (ASMC) model and ovalbumin (OVA)-induced rat asthma model were used to continue our following research. Our results showed that ISOF could prolong the cough latent period, reduce the cough times in two minutes, and increase the excretion of red phenol, which suggested the antitussive and expectorant effects of ISOF. Besides, ISOF pretreatment reversed the hypotonicity and cytoskeleton remodeling in PDGF-induced ASMCs, and reduced mucus hypersecretion and collagen overdeposition in OVA-induced rat asthma model, which indicated its inhibition on airway remodeling in vitro and in vivo. Moreover, ISOF reduced the invasion of inflammatory cells into bronchoalveolar lavage fluid (BALF) and lungs, which revealed its inhibitory role in airway inflammation. The down-regulation of transforming growth factor β1 (TGF-β1) and interleukin-1β (IL-1β) upon ISOF treatment might be responsible for its anti-remodeling and anti-inflammation roles. In conclusion, ISOF can reduce cough and sputum, as well as inhibit airway remodeling and inflammation by regulating the expression of TGF-β1 and IL-1β. These data indicate the potency of ISOF in treating asthma and also provide insights into the development of new anti-asthma agent.
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Affiliation(s)
- Xin Liang
- State Key Laboratory of Bioreactor Engineering & Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology,130 Meilong Road, Shanghai 200237, PR China
| | - Jingjing Wang
- State Key Laboratory of Bioreactor Engineering & Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology,130 Meilong Road, Shanghai 200237, PR China
| | - Weiwei Chen
- State Key Laboratory of Bioreactor Engineering & Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology,130 Meilong Road, Shanghai 200237, PR China
| | - Xiaoying Ma
- State Key Laboratory of Bioreactor Engineering & Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology,130 Meilong Road, Shanghai 200237, PR China
| | - Yaqin Wang
- School of Pharmacy, Fudan University,826 Zhangheng Road, Shanghai 201203, PR China
| | - Norio Nagao
- Department of Life and Environmental Sciences, Prefectural University of Hiroshima, Shobara, 727-0023, Japan
| | - Weiyu Weng
- State Key Laboratory of Bioreactor Engineering & Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology,130 Meilong Road, Shanghai 200237, PR China.
| | - Jianming Huang
- School of Pharmacy, Fudan University,826 Zhangheng Road, Shanghai 201203, PR China.
| | - Jianwen Liu
- State Key Laboratory of Bioreactor Engineering & Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology,130 Meilong Road, Shanghai 200237, PR China.
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Lee SH, Lee N, Hong Y, Chung BC, Choi MH. Simultaneous Analysis of Free and Sulfated Steroids by Liquid Chromatography/Mass Spectrometry with Selective Mass Spectrometric Scan Modes and Polarity Switching. Anal Chem 2016; 88:11624-11630. [PMID: 27934105 DOI: 10.1021/acs.analchem.6b03183] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Sulfated steroids can act as a latent form of active free steroids, coexisting with them in biological specimens. To evaluate the metabolic significance of free and sulfated steroid species, a simultaneous analysis of eight free steroids [cholesterol, pregnenolone, 17α-hydroxypregnenolone, progesterone, 17α-hydroxyprogesterone, dehydroepiandrosterone (DHEA), testosterone, and 17β-estradiol] and four biologically relevant sulfated steroids was developed and validated, using selected-ion and multiple-reaction monitoring modes coupled to polarity-switching liquid chromatography/mass spectrometry (LC/MS). All steroids were separated on a reversed-phase phenyl column (50 mm × 2 mm, 3 μm) at a flow rate of 0.5 mL/min. The limits of quantification ranged from 0.1 to 50 ng/mL at extraction recoveries of 94.1-105.5%, while the precision and accuracy were 2.5-9.3% and 92.4-105.9%, respectively. Quantitative results obtained for samples from obese girls showed that the serum levels of DHEA sulfate were significantly increased (P = 0.004), along with the metabolic ratio representing DHEA sulfotransferase (P < 0.02). The developed novel LC/MS method can quantitatively profile both free and sulfated steroids in a single analytical run.
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Affiliation(s)
- Su Hyeon Lee
- Molecular Recognition Research Center, Korea Institute of Science and Technology , Seoul 02792, Korea
| | - Nanhee Lee
- Molecular Recognition Research Center, Korea Institute of Science and Technology , Seoul 02792, Korea
| | - Youngmin Hong
- Technical Research Center, Dong-il Shimadzu Corporation , Seoul 06046, Korea
| | - Bong Chul Chung
- Molecular Recognition Research Center, Korea Institute of Science and Technology , Seoul 02792, Korea
| | - Man Ho Choi
- Molecular Recognition Research Center, Korea Institute of Science and Technology , Seoul 02792, Korea
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Feng T, Li Y, Chen J, Chen Y, Huang J, Weng W. Pharmacokinetics of isoforskolin after administration via different routes in guinea pigs. Xenobiotica 2015; 46:620-626. [PMID: 26523445 DOI: 10.3109/00498254.2015.1099082] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
1. The objective of this study was to characterize the pharmacokinetics of isoforskolin after oral, intraperitoneal and intravenous administration, as well as to compare bioavailability. 2. Isoforskolin was administered to guinea pigs at a dose of 2 mg/kg. Plasma concentrations were determined by high-performance liquid chromatography-electrospray ionization-tandem mass spectrometry (HPLC-ESI-MS/MS) method. The pharmacokinetic parameters were calculated by a noncompartmental method. A compartment model was also adopted to describe the pharmacokinetic profiles. 3. The pharmacokinetic behavior of intravenously administered isoforskolin was characterized by rapid and extensive distribution (Vz = 16.82 ± 8.42 L/kg) followed by rapid elimination from the body (Cl = 9.63 ± 4.21 L/kg/h). After intraperitoneal administration, isoforskolin was absorbed rapidly (Tmax = 0.12 ± 0.05 h). The pharmacokinetic profiles of isoforskolin were similar after intraperitoneal and intravenous administration, except for the concentrations at the initial sampling times. Isoforskolin was also absorbed rapidly following oral dosing; however, the concentration-time data were best fit to a one-compartment model, which was different from that observed after intravenous and intraperitoneal administration. Following intraperitoneal and oral administration, the absolute bioavailability of isoforskolin was 64.12% and 49.25%, respectively. 4. Isoforskolin is a good candidate for oral administration because of its good oral bioavailability.
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Affiliation(s)
- Tingting Feng
- a Department of Pharmaceutics , School of Pharmacy, East China University of Science of Technology , Shanghai , China and
| | - Yong Li
- a Department of Pharmaceutics , School of Pharmacy, East China University of Science of Technology , Shanghai , China and
| | - Jun Chen
- b School of Pharmacy, Fudan University , Shanghai , China
| | - Yong Chen
- a Department of Pharmaceutics , School of Pharmacy, East China University of Science of Technology , Shanghai , China and
| | - Jianming Huang
- b School of Pharmacy, Fudan University , Shanghai , China
| | - Weiyu Weng
- a Department of Pharmaceutics , School of Pharmacy, East China University of Science of Technology , Shanghai , China and
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