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Chen Y, Liu Y, Bai Y, Xu S, Yang X, Cheng B. Intestinal metabolomics of juvenile lenok (Brachymystax lenok) in response to heat stress. FISH PHYSIOLOGY AND BIOCHEMISTRY 2022; 48:1389-1400. [PMID: 36169784 DOI: 10.1007/s10695-022-01128-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 09/20/2022] [Indexed: 06/16/2023]
Abstract
Changes in the metabolic profile within the intestine of lenok (Brachymystax lenok) when challenged to acute and lethal heat stress (HS) are studied using no-target HPLC-MS/MS metabonomic analysis. A total of 51 differentially expressed metabolites (VIP > 1, P < 0.05) were identified in response to HS, and 34 occurred in the positive ion mode and 17 in negative ion mode, respectively. After heat stress, changes in metabolites related to glycolysis (i.e., alpha-D-glucose, stachyose, and L-lactate) were identified. The metabolites (acetyl carnitine, palmitoylcarnitine, carnitine, and erucic acid) related to fatty acid β-oxidation accumulated significantly, and many amino acids (L-tryptophan, D-proline, L-leucine, L-phenylalanine, L-aspartate, L-tyrosine, L-methionine, L-histidine, and L-glutamine) were significantly decreased in HS-treated lenok. The mitochondrial β-oxidation pathway might be inhibited, while severe heat stress might activate the anaerobic glycolysis and catabolism of amino acid for energy expenditure. Oxidative damage in HS-treated lenok was indicated by the decreased glycerophospholipid metabolites (i.e., glycerophosphocholine, 1-palmitoyl-2-hydroxy-sn-glycero-3-phosphoethanolamine, 1-palmitoyl-sn-glycero-3-phosphocholine, 1-stearoyl-2-oleoyl-sn-glycero-3-phosphocholine, and 1, 2-dioleoyl-sn-glycero-3-phosphatidylcholine) and the increased oxylipin production (12-HETE and 9R, 10S-EpOME). The minor oxidative pathways (omega-oxidation and peroxisomal beta-oxidation) were likely to be induced in HS-treated lenok.
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Affiliation(s)
- Yan Chen
- Beijing Key Laboratory of Fishery Biotechnology, Fisheries Science Institute, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097, People's Republic of China
| | - Yang Liu
- College of Eco-Environmental Engineering, Qinghai University, Xining, 810016, People's Republic of China
| | - Yucen Bai
- China Rural Technology Development Center, No.54 Sanlihe Road, Xicheng District, Beijing, 100045, People's Republic of China.
| | - Shaogang Xu
- Beijing Key Laboratory of Fishery Biotechnology, Fisheries Science Institute, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097, People's Republic of China
| | - Xiaofei Yang
- Beijing Key Laboratory of Fishery Biotechnology, Fisheries Science Institute, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097, People's Republic of China
| | - Bo Cheng
- Aquatic Products Quality and Standards Research Center, Chinese Academy of Fishery Sciences, Beijing, 100141, People's Republic of China.
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2
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Isolation, Identification and Characteristics of Aeromonas caviae from Diseased Largemouth Bass (Micropterus salmoides). FISHES 2022. [DOI: 10.3390/fishes7030119] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The largemouth bass (Micropterus salmoides) is one of the most economically valuable fish species in China. In this study, a bacterial pathogen was isolated from the internal organs of diseased M. salmoides, and the strain was named WH21406. This isolate was identified as Aeromonas caviae on the basis of its morphology, biochemical features and 16S rDNA phylogenetic analysis. Four virulence genes related to pathogenicity, namely, flagella (fla), elastase (ela), haemolysin (hly) and aerolysin (aer), were detected in this isolate. The median lethal dosage (LD50) of A. caviae WH21406 for M. salmoides was calculated to be 3.46 × 105 CFU mL−1. The histopathological analysis showed obvious tissue damage in the gill, liver, kidney, spleen and gut of the diseased fish. The antibiotic susceptibility test demonstrated that strain WH21406 was highly sensitive to enrofloxacin, norfloxacin, streptomycin and amikacin. The results of this study provide a foundation for the diagnosis, prevention and treatment of A. caviae infection in M. salmoides.
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Zhao YN, Gao G, Ma JL, Xu RZ, Guo T, Wu LM, Liu XG, Xie ZS, Xu JY, Zhang ZQ, Wang P. Two new sesquiterpenes from the rhizomes of Atractylodes macrocephala and their biological activities. Nat Prod Res 2021; 36:1230-1235. [PMID: 33401972 DOI: 10.1080/14786419.2020.1869970] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Two new sesquiterpenes, named selina-4(14),7,11-trien-9-ol (1) and selina-4(14),11-dien-7-ol (2), along with two known compounds were isolated from rhizomes of Atractylodes macrocephala Koidz. All structures were assigned on the basis of detailed spectroscopic analyses. The absolute configuration of 1 was established by TDDFT-ECD calculations. Compound 1 was found to moderately inhibit LSD1 activity with IC50 value of 34.0 μM. Compounds 1 and 4 exhibited a regulate effect on Keap1-Nrf2-ARE pathway.
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Affiliation(s)
- Yi-Nan Zhao
- Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou, China
| | - Gai Gao
- Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou, China
| | - Jin-Lian Ma
- Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou, China
| | - Rui-Zhu Xu
- Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou, China
| | - Tao Guo
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, China
| | - Li-Min Wu
- Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou, China
| | - Xin-Guang Liu
- Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou, China
| | - Zhi-Shen Xie
- Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou, China
| | - Jiang-Yan Xu
- Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou, China
| | - Zhen-Qiang Zhang
- Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou, China
| | - Pan Wang
- Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou, China.,Zhongjing Wanxi Pharmaceutical Co., Ltd, Zhengzhou, China
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4
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Baldissera MD, Souza CF, Tavares GC, Valladão GMR, Da Silva AS, Antoniazzi A, Cunha MA, Baldisserotto B. Purinergic signaling and gene expression of purinoceptors in the head kidney of the silver catfish Rhamdia quelen experimentally infected by Flavobacterium columnare. Microb Pathog 2020; 142:104070. [PMID: 32081613 DOI: 10.1016/j.micpath.2020.104070] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 02/12/2020] [Accepted: 02/13/2020] [Indexed: 01/21/2023]
Abstract
The head kidney is a lymphoid immune organ that plays a key role in the immune and inflammatory responses of teleost fish. It is associated with immunoglobulin G production and differentiation of B cells. The presence of a multi-enzymatic complex found anchored in the plasma membrane makes the head kidney an important purinergic-dependent tissue. Purinergic signaling has been associated with these responses under pathological conditions via regulation of extracellular adenosine triphosphate (ATP), the main damage molecular associated pattern agent released during bacterial infections. The aim of this study was to determine whether purinergic signaling is a pathway associated with impairment of immune responses in silver catfish (Rhamdia quelen) experimentally infected by Flavobacterium columnare, as well as to evaluate the role of P2 purine receptors in this response. Triphosphate diphosphohydrolase (NTPDase) activity in the head kidney was significantly lower in silver catfish experimentally-infected F. columnare 72 h post-infection (hpi) than in the control group, while no significant difference was observed with respect NTPDase activity on adenosine diphosphate, as well as on 5'-nucleotidase and adenosine deaminase activities. Extracellular ATP levels were significantly higher in the head kidney of experimentally-infected fish than in the control group at 72 hpi. Finally, p2ry11 and p2rx3 purine receptor levels were significantly higher in experimentally-infected fish than in the control group at 72 hpi. We conclude that purinergic signaling in the head kidney of silver catfish infected by F. columnare creates a pro-inflammatory profile that may contribute to impairment of immune and inflammatory responses via reduction of ATP hydrolysis and its accumulation in the extracellular milieu, accompanied by upregulation of p2ry11 and p2rx3 purine receptors, leading to pro-inflammatory status.
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Affiliation(s)
- Matheus D Baldissera
- Department of Physiology and Pharmacology, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil.
| | - Carine F Souza
- Department of Physiology and Pharmacology, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Guilherme C Tavares
- Postgraduate Program in Aquaculture, Universidade Nilton Lins, Manaus, AM, Brazil
| | - Gustavo M R Valladão
- Postgraduate Program in Aquaculture, Universidade Nilton Lins, Manaus, AM, Brazil
| | - Aleksandro S Da Silva
- Department of Animal Science, Universidade do Estado de Santa Catarina, Chapecó, RS, Brazil
| | - Alfredo Antoniazzi
- Animal Reproduction Laboratory (BIOREP), Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Mauro A Cunha
- Department of Physiology and Pharmacology, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Bernardo Baldisserotto
- Department of Physiology and Pharmacology, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
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Tang Y, Sun Y, Zhao L, Xu X, Huang L, Qin Y, Su Y, Yi G, Yan Q. Mechanistic insight into the roles of Pseudomonas plecoglossicida clpV gene in host-pathogen interactions with Larimichthys crocea by dual RNA-seq. FISH & SHELLFISH IMMUNOLOGY 2019; 93:344-353. [PMID: 31352116 DOI: 10.1016/j.fsi.2019.07.066] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Revised: 07/16/2019] [Accepted: 07/24/2019] [Indexed: 06/10/2023]
Abstract
Large yellow croaker (Larimichthys crocea) is an economical important farmed fish in China. "Visceral White Spot Disease" caused by Pseudomonas plecoglossicida is a disease with a high mortality rate in cage-cultured L. crocea in recent years and resulted in heavy economy lossess. The dual RNA-seq results of previous study showed that the expression of clpV gene in P. plecoglossicida was significantly up-regulated during infection. RNAi significantly reduced the expression of clpV in P. plecoglossicida with maximum silencing efficiency of 96.1%. Compared with the wild type strain, infection of clpV-RNAi strain resulted in a delayed onset time and a 25% reduction in mortality of L. crocea, as well as lessening the symptoms of the spleen. The results of dual RNA-seq of L. crocea infected by clpV-RNAi strain of P. plecoglossicida changed considerably, compared with the counterpart infected with the wild strain. The KEGG enrichment analysis showed that Cytokine-cytokine receptor interaction, Toll-like receptor signaling pathway, C-type lectin receptor signaling pathway and MAPK signaling pathway of L. crocea were most affected by the silence of clpV in P. plecoglossicida. RNAi of clpV resulted in the downregulation of genes in flagella assembly pathway and a weaker immune response of host.
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Affiliation(s)
- Yi Tang
- Fisheries College, Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Jimei University, Xiamen, Fujian, 361021, China
| | - Yujia Sun
- Fisheries College, Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Jimei University, Xiamen, Fujian, 361021, China
| | - Lingmin Zhao
- Fisheries College, Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Jimei University, Xiamen, Fujian, 361021, China
| | - Xiaojin Xu
- Fisheries College, Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Jimei University, Xiamen, Fujian, 361021, China
| | - Lixing Huang
- Fisheries College, Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Jimei University, Xiamen, Fujian, 361021, China
| | - Yingxue Qin
- Fisheries College, Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Jimei University, Xiamen, Fujian, 361021, China
| | - Yongquan Su
- State Key Laboratory of Large Yellow Croaker Breeding, Ningde Fufa Aquatic Products Co., Ltd., Ningde, Fujian, 352000, China
| | - Ganfeng Yi
- Fujian Dabeinong Aquaculture Science & Technology Co. Ltd., Zhangzhou, Fujian, 363502, China
| | - Qingpi Yan
- Fisheries College, Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Jimei University, Xiamen, Fujian, 361021, China.
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6
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Purinergic signaling creates an anti-inflammatory profile in spleens of grass carp Ctenopharyngodon idella naturally infected by Saprolegnia parasitica: An attempt to prevent ATP pro-inflammatory effects. Microb Pathog 2019; 135:103649. [PMID: 31374321 DOI: 10.1016/j.micpath.2019.103649] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 07/29/2019] [Accepted: 07/30/2019] [Indexed: 01/10/2023]
Abstract
Extracellular adenosine triphosphate (ATP) is as key mediator of immune and inflammatory responses. ATP is normally sequestered in the intracellular milieu and released by apoptotic and necrotic cells, where it acts as a pro-inflammatory mediator in the extracellular milieu. A limited number of studies have explored the involvement of purinergic signaling in oomycete infections, including Saprolegnia parasitica; this is a most destructive oomycete pathogen, associated with high mortality and severe economic losses for fish producers. The aim of this study was to determine whether purinergic signaling exerts anti- or pro-inflammatory effects in spleens of grass carp (Ctenopharyngodon idella) naturally infected by S. parasitica. Animals naturally infected with S. parasitica showed typical gross lesions characterized by cotton-wool tufts on the tail and fins, as well as severe histopathological lesions such as necrosis. Spleen ATP and metabolites of nitric oxide (NOx) levels were higher in fish naturally infected by S. parasitica compared to control on day 7 post-infection (PI). Spleen nucleoside triphosphate diphosphohydrolase (NTPDase) activity (ATP as substrate) was greater in fish naturally infected by S. parasitica than in uninfected on day 7 PI, while no significant differences were observed between groups with respect to NTPDase (adenosine diphosphate as substrate) and 5'-nucleotidase activities. Finally, adenosine deaminase (ADA) activity was lower in fish naturally infected by S. parasitica than in uninfected fish on day 7 PI. In summary, spleen tissue necrosis in the context of saprolegniosis provokes an intense release of ATP into the extracellular milieu, where it interacts with the P2X7 purine receptor and leads to a self-sustained pro-inflammatory deleterious cycle, contributing to an intense inflammatory process. In response to excessive ATP levels in the extracellular milieu, ATP and adenosine hydrolysis were modulated in an attempt to restrict the inflammatory process via upregulation of NTPDase and downregulation of ADA activities. We conclude that the purinergic signaling pathway modulates immune and inflammatory responses during natural infection with S. parasitica.
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7
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Zhu B, Zhang QL, Hua JW, Cheng WL, Qin LP. The traditional uses, phytochemistry, and pharmacology of Atractylodes macrocephala Koidz.: A review. JOURNAL OF ETHNOPHARMACOLOGY 2018; 226:143-167. [PMID: 30130541 DOI: 10.1016/j.jep.2018.08.023] [Citation(s) in RCA: 155] [Impact Index Per Article: 25.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Revised: 08/17/2018] [Accepted: 08/17/2018] [Indexed: 05/18/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Atractylodes macrocephala Koidz. (called Baizhu in China) is a medicinal plant that has long been used as a tonic agent in various ethno-medical systems in East Asia, especially in China, for the treatment of gastrointestinal dysfunction, cancer, osteoporosis, obesity, and fetal irritability. AIM OF THE REVIEW This review aims to provide a systematic summary on the botany, traditional uses, phytochemistry, pharmacology, pharmacokinetics, and toxicology of A. macrocephala to explore the future therapeutic potential and scientific potential of this plant. MATERIALS AND METHODS A literature search was performed on A. macrocephala using scientific databases including Web of Science, Google Scholar, Baidu Scholar, Springer, PubMed, SciFinder, and ScienceDirect. Information was also collected from classic books of Chinese herbal medicine, Ph.D. and M.Sc. dissertations, unpublished materials, and local conference papers on toxicology. Plant taxonomy was confirmed to the database "The Plant List" (www.theplantlist.org). RESULTS More than 79 chemical compounds have been isolated from A. macrocephala, including sesquiterpenoids, triterpenoids, polyacetylenes, coumarins, phenylpropanoids, flavonoids and flavonoid glycosides, steroids, benzoquinones, and polysaccharides. Crude extracts and pure compounds of A. macrocephala are used to treat gastrointestinal hypofunction, cancer, arthritis, osteoporosis, splenic asthenia, abnormal fetal movement, Alzheimer disease, and obesity. These extracts have various pharmacological effects, including anti-tumor activity, anti-inflammatory activity, anti-aging activity, anti-oxidative activity, anti-osteoporotic activity, neuroprotective activity, and immunomodulatory activity, as well as improving gastrointestinal function and gonadal hormone regulation. CONCLUSIONS A. macrocephala is a valuable traditional Chinese medicinal herb with multiple pharmacological activities. Pharmacological investigations support the traditional use of A. macrocephala, and may validate the folk medicinal use of A. macrocephala to treat many chronic diseases. The available literature shows that much of the activity of A. macrocephala can be attributed to sesquiterpenoids, polysaccharides and polyacetylenes. However, there is a need to further understand the molecular mechanisms and the structure-function relationship of these constituents, as well as their potential synergistic and antagonistic effects. Further research on the comprehensive evaluation of medicinal quality, the understanding of multi-target network pharmacology of A. macrocephala, as well as its long-term in vivo toxicity and clinical efficacy is recommended.
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Key Words
- 12-hydroxytetradeca-2E,8E,10E-trien-4,6-diyn-1-ol (PubChem CID: 5321038)
- 12-hydroxytetradeca-2E,8Z,10E-trien-4,6-diyn-1-ol (PubChem CID: 54242098)
- 12-senecioyloxytetradeca-2E,8Z,10E-trien-4,6-diyne-1,14-diacetate (PubChem CID: 132941088)
- 13-hydroxyl-atractylenolide Ⅱ (PubChem CID: 132522412)
- 14-acetoxy-12-methylpropionyltetradeca-2E,8Z,10E-trien-4,6-diyn-1-ol (PubChem CID: 132941089)
- 14-acetoxy-12-senecioyloxytetradeca-2E,8E,10E-trien-4,6-diyn-1-ol (PubChem CID: 14448076)
- 14-acetoxy-12-senecioyloxytetradeca-2E,8Z,10E-trien-4,6-diyn-1-ol (PubChem CID: 132941086)
- 14-acetoxy-12α-methylbutyryltetradeca-2E,8E,10E-trien-4,6-diyn-1-ol (PubChem CID: 5319529)
- 14-acetoxy-12α-methylbutyryltetradeca-2E,8Z,10E-trien-4,6-diyn-1-ol (PubChem CID: 5319530)
- 14-acetoxy-12β-methylbutyryltetradeca-2E,8E,10E-trien-4,6-diyn-1-ol (PubChem CID: 14586258)
- 14-acetoxytetradeca-2E,8E,10E-trien-4,6-diyn-1-ol (PubChem CID: 129844442)
- 14-senecioyloxytetradeca-2E,8Z,10E-trien-4,6-diyne-1-ol (PubChem CID: 132919181)
- 14α-methylbutyryltetradeca-2E,8E,10E-trien-4,6-diyn-1-ol (PubChem CID: 5319531)
- 14β-methylbutyryltetradeca-2E,8E,10E-trien-4,6-diyn-1-ol (PubChem CID: 102208392)
- 2,6-dimethoxyphenol (PubChem CID: 7041)
- 2,6-dimethoxyquinone (PubChem CID: 68262)
- 2-[(2E)-3,7-dimethyl-2,6-octadienyl]-6-methyl-2,5-cyclohexadiene-1,4-dione (PubChem CID: 642530)
- 3-hydroxy-1-(4-hydroxy-3-methoxyphenyl) propan-1-one (PubChem CID: 75142)
- 4-ketone-atractylenolide Ⅲ (PubChem CID: 132522410)
- 4-methoxycinnamic acid (PubChem CID: 699414)
- 7-hydroxycoumarin (PubChem CID: 5281426)
- 8β-D-glucopyranosyloxy-4′,5,7-trihydroxy-flavone (PubChem CID: 6420079)
- 8β-methoxyatractylenolide (PubChem CID: 101707485)
- Apigenin (PubChem CID: 5280443)
- Atractylenolactam (PubChem CID: 101707484)
- Atractylenolide I (PubChem CID: 5321018)
- Atractylenolide V (PubChem CID: 102163989)
- Atractylenolide Ⅱ (PubChem CID: 14448070)
- Atractylenolide Ⅲ (PubChem CID: 11311230)
- Atractylenolide Ⅳ (PubChem CID: 132510447)
- Atractylodes macrocephala Koidz.
- Atractylon (PubChem CID: 3080635)
- Atractyloside A (PubChem CID: 71307451)
- Biepiasterolide (PubChem CID: 11351701)
- Caffeic acid (PubChem CID: 689043)
- D-mannitol (PubChem CID: 6251)
- Dictamnoside A (PubChem CID: 44560015)
- Ethyl 3,4-dihydroxycinnamate (PubChem CID: 5317238)
- Eudesm-4(15),7-diene-9α,11-diol (PubChem CID: 102519767)
- Eudesm-4(15)-ene-7β,11-diol (PubChem CID: 102519766)
- Ferulic acid (PubChem CID: 445858)
- Juniper camphor (PubChem CID: 5318734)
- Lupeol (PubChem CID: 259846)
- Luteolin (PubChem CID: 5280445)
- Palmitic acid (PubChem CID: 985)
- Pharmacology
- Phytochemistry
- Protocatechuic acid (PubChem CID: 72)
- Scopoletin (PubChem CID: 5280460)
- Scutellarein 6-O-glucoside (PubChem CID: 54493965)
- Selina-4(15),7(11)-dien-8-one (PubChem CID: 13986100)
- Stigmasterol (PubChem CID: 5280794)
- Syringin (PubChem CID: 5316860)
- Taraxeryl acetate (PubChem CID: 94225)
- Traditional uses
- Uridine (PubChem CID: 6029)
- Z-5-hydroxy ferulic acid (PubChem CID: 446834)
- β-sitosterol (PubChem CID: 222284)
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Affiliation(s)
- Bo Zhu
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou 310053, China; Lishui Academy of Agricultural Sciences, Lishui 323000, China
| | - Quan-Long Zhang
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Jin-Wei Hua
- Lishui Academy of Agricultural Sciences, Lishui 323000, China
| | - Wen-Liang Cheng
- Lishui Academy of Agricultural Sciences, Lishui 323000, China.
| | - Lu-Ping Qin
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou 310053, China.
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Baldissera MD, Souza CF, Zeppenfeld CC, Garzon LR, Descovi SN, Da Silva AS, Stefani LM, Baldisserotto B. Purinergic signalling displays a pro-inflammatory profile in spleen and splenic lymphocytes of Rhamdia quelen fed with a diet contaminated by fungal mycotoxin: Involvement on disease pathogenesis. Microb Pathog 2018; 123:449-453. [PMID: 30086344 DOI: 10.1016/j.micpath.2018.08.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 08/02/2018] [Accepted: 08/04/2018] [Indexed: 11/24/2022]
Abstract
The spleen is an important secondary lymphatic organ that plays a key role in the immune and inflammatory responses of teleost fish. The purinergic signalling has been associated to these types of responses under pathological conditions by the regulation of extracellular adenosine triphosphate (ATP) and its metabolite adenosine (Ado), where both exert potent pro-inflammatory and anti-inflammatory profiles, respectively. The exact pathway involved on the immunotoxic effects of aflatoxin B1 (AFB1) in fish fed with diets containing this mycotoxin remains poorly understood. Thus, the aim of this study was to evaluate whether purinergic signalling exerts anti or pro-inflammatory effects in spleen and splenic lymphocytes of Rhamdia quelen fed with a diet contaminated by AFB1. Ectonucleoside triphosphate diphosphohydrolase (NTPDase) activity (ATP as substrate) decreased in spleen and splenic lymphocytes of fish fed with an AFB1-contaminated diet on day 21 post-feeding compared to fish fed with a basal diet; while adenosine deaminase (ADA) activity increased. No differences were observed between groups or over time regarding NTPDase (adenosine diphosphate as substrate) and 5'-nucleotidase activities. In summary, the purinergic signalling can be a pathway involved in the impairment of the immune and inflammatory responses in fish fed with an AFB1-contaminated diet, contributing to the immunotoxic effects of AFB1 in spleens of fish.
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Affiliation(s)
- Matheus D Baldissera
- Department of Microbiology and Parasitology, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil.
| | - Carine F Souza
- Department of Physiology and Pharmacology, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Carla Cristina Zeppenfeld
- Department of Physiology and Pharmacology, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Litiérri R Garzon
- Department of Microbiology and Parasitology, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Sharine N Descovi
- Department of Physiology and Pharmacology, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Aleksandro S Da Silva
- Department of Animal Science, Universidade do Estado de Santa Catarina, Chapecó, RS, Brazil
| | - Lenita M Stefani
- Department of Animal Science, Universidade do Estado de Santa Catarina, Chapecó, RS, Brazil
| | - Bernardo Baldisserotto
- Department of Physiology and Pharmacology, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
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Purinergic system as a potential target for inflammation and toxicity induced by thymol in immune cells and tissues. Mol Cell Biochem 2018; 452:105-110. [PMID: 30066040 DOI: 10.1007/s11010-018-3416-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Accepted: 07/28/2018] [Indexed: 12/13/2022]
Abstract
Thymol is a phytochemical component present in many plants used as food additive in order to promote animal growth due to its several biological properties. However, possible side effects of thymol remain poorly known limited to few reports. In this sense, we evaluated the enzymes of the purinergic signaling such as, ectonucleoside triphosphate diphosphohydrolase (NTPDase), 5'-nucleotidase and adenosine deaminase (ADA), that play an important role on toxicity induced by excessive adenosine triphosphate (ATP) content in the extracellular environment. Thus, the aim of this study was to evaluate whether purinergic signaling could be considered a potential target of thymol-induced inflammation, and the toxicity in tissues and immune cells of mice after thymol administration. NTPDase activity (ATP as substrate) in serum, spleen, and splenic lymphocytes was lower after 30 days of oral treatment at doses of 10, 20, and 40 mg/kg of thymol, while ADA activity was stimulated at 20 and 40 mg/kg. No differences were observed between groups regarding NTPDase (ADP as substrate) and 5'-nucleotidase activities in all evaluated tissues. Based on these evidences, adenine nucleotide hydrolysis is modified in serum, spleen, and splenic lymphocytes of mice treated with thymol, contributing to inflammation and toxicity by a reduction on ATP hydrolyses and its possible accumulation in the extracellular medium and increased Ado desamination and its possible reduction in the extracellular environment, leading to a self-sustained pro-inflammatory deleterious cycle. In summary, all tested thymol concentrations induced inflammation and toxicity in tissues and immune cells of treated mice.
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