1
|
Zhang W, Zhao J, Ma Y, Li J, Chen X. The effective components of herbal medicines used for prevention and control of fish diseases. FISH & SHELLFISH IMMUNOLOGY 2022; 126:73-83. [PMID: 35609759 DOI: 10.1016/j.fsi.2022.05.036] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 05/12/2022] [Accepted: 05/18/2022] [Indexed: 06/15/2023]
Abstract
The increasing demand for fish consumption has promoted the rapid development of fish aquaculture. With the continuous expansion of culture scale and the deterioration of culture environment, various diseases have broken out frequently, leading to huge economic losses to fish farming. Antibiotics and chemicals are common options to prevent and control of fish diseases, but their use is now restricted or even banned due to serious problems such as drug residues, pathogen resistance, and environmental pollution. Herbs and their extracts have increasingly become promising supplements and alternatives, because of their effectiveness, safety, environmental friendliness and less drug resistance. The application of herbal medicines in prevention and control of fish diseases is mainly attributed to the powerful immune enhancement, antioxidation or direct anti-pathogenic efficacies of their effective components, including mainly polyphenols, polysaccharides, saponins, flavonoids, alkaloids, and essential oils. Recently these herbal active ingredients have been extensively studied for their efficacies in prevention and control of viral, bacterial, parasitic, and fungal diseases in fish. In the present paper, we comprehensively summarize the research progress of the active ingredients of herbal medicines used for prevention and control of fish diseases, especially of their action mechanisms, and highlight the potential application of the herbal medicines in fish aquaculture.
Collapse
Affiliation(s)
- Weini Zhang
- Key Laboratory of Marine Biotechnology of Fujian Province, Institute of Oceanology, Fujian Agriculture and Forestry University, Fuzhou, 350002, PR China; University Key Lab for Integrated Chinese Traditional and Western Veterinary Medicine and Animal Healthcare in Fujian Province, Fujian Agriculture and Forestry University, Fuzhou, 350002, PR China
| | - Jinpeng Zhao
- Key Laboratory of Marine Biotechnology of Fujian Province, Institute of Oceanology, Fujian Agriculture and Forestry University, Fuzhou, 350002, PR China
| | - Yufang Ma
- University Key Lab for Integrated Chinese Traditional and Western Veterinary Medicine and Animal Healthcare in Fujian Province, Fujian Agriculture and Forestry University, Fuzhou, 350002, PR China
| | - Jian Li
- Fujian Key Laboratory of Traditional Chinese Veterinary Medicine and Animal Health, Fujian Agriculture and Forestry University, Fuzhou, 350002, PR China
| | - Xinhua Chen
- Key Laboratory of Marine Biotechnology of Fujian Province, Institute of Oceanology, Fujian Agriculture and Forestry University, Fuzhou, 350002, PR China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071, PR China.
| |
Collapse
|
2
|
Sahashi D, Kubo Y, Ishii M, Ikeda A, Yamasaki C, Komatsu M, Shiozaki K. Neu1 deficiency increases the susceptibility of zebrafish to Edwardsiella piscicida infection via lysosomal dysfunction. Gene 2022; 836:146667. [PMID: 35714800 DOI: 10.1016/j.gene.2022.146667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2022] [Revised: 05/14/2022] [Accepted: 06/06/2022] [Indexed: 11/18/2022]
Abstract
Neu1 is a lysosomal glycosidase that catalyzes the removal of sialic acids from glycoconjugates. Although Neu1 sialidase is highly conserved among vertebrates, the role of fish Neu1 is not fully understood because of its unique aquatic living situation. Compared to land animals, fish have a higher chance of bacterial infection, and to understand the role of fish Neu1, the susceptibility of Neu1 knockout zebrafish (Neu1-KO) was evaluated using Edwardsiella piscicida, a fish pathogen. Neu1-KO larvae showed high susceptibility to E. piscicida, despite the activation of macrophages, and presented increased lysosomal signals induced by the accumulation of Sia α2-3 linked oligosaccharides. The accumulation coincided with the signal of the macrophage marker, suggesting that the dysfunction of lysosomes in macrophages would result in a high susceptibility of Neu1-KO to E. piscicida. Chloroquine, an inhibitor of lysosomal degradation, induced high mortality of wild type zebrafish with E. piscicida infection accompanied by increased lysosomal accumulation, similar to Neu1-KO zebrafish. This study revealed that Neu1 sialidase plays a crucial role in the lysosomal degradation of macrophages with a bacterial infection.
Collapse
Affiliation(s)
- Daichi Sahashi
- Department of Food Life Sciences, Faculty of Fisheries, Kagoshima University, Kagoshima, Japan
| | - Yurina Kubo
- Department of Food Life Sciences, Faculty of Fisheries, Kagoshima University, Kagoshima, Japan
| | - Mika Ishii
- Department of Food Life Sciences, Faculty of Fisheries, Kagoshima University, Kagoshima, Japan
| | - Asami Ikeda
- The United Graduate School of Agricultural Sciences, Kagoshima University, Kagoshima, Japan
| | - Chiharu Yamasaki
- Department of Food Life Sciences, Faculty of Fisheries, Kagoshima University, Kagoshima, Japan
| | - Masaharu Komatsu
- Department of Food Life Sciences, Faculty of Fisheries, Kagoshima University, Kagoshima, Japan; The United Graduate School of Agricultural Sciences, Kagoshima University, Kagoshima, Japan
| | - Kazuhiro Shiozaki
- Department of Food Life Sciences, Faculty of Fisheries, Kagoshima University, Kagoshima, Japan; The United Graduate School of Agricultural Sciences, Kagoshima University, Kagoshima, Japan.
| |
Collapse
|
3
|
Tran NT, Vo LK, Komatsu M, Shiozaki K. Involvement of N-acetylneuraminate cytidylyltransferase in Edwardsiella piscicida pathogenicity. FISH & SHELLFISH IMMUNOLOGY 2022; 124:534-542. [PMID: 35477099 DOI: 10.1016/j.fsi.2022.04.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Revised: 02/22/2022] [Accepted: 04/21/2022] [Indexed: 06/14/2023]
Abstract
Edwardsiella piscicida is a gram-negative bacterium that causes Edwardsiellosis in cultured fish. Edwardsiellosis is accompanied by symptoms such as skin lesions, hemorrhage, and necrosis in fish organs, which leads to significant economic losses in the aquaculture industry. Recently, we found that bacterial sialoglycoconjugates may be involved in the infectivity of E. piscicida. The more infectious strains of E. piscicida contain more sialic acid in the bacterial body, and the mRNA level of putative CMP-Neu5Ac synthase (css) is upregulated compared to that in the non-pathogenic strain. However, this putative css gene is yet to be cloned, and the involvement of CSS in E. piscicida pathogenicity remains unclear. Here, we cloned and transferred the css gene from E. piscicida into the FPC498 strain. CSS promoted infection in cultured cells originating from different fish species, and enhanced the mortality of E. piscicida-infected zebrafish larvae. CSS enhanced cell attachment and motility in E. piscicida, which differs from the decreased bacterial growth observed with the sialic acid-supplemented M9 medium. Both fractions (chloroform-methanol)-soluble and -insoluble fraction) prepared from E. piscicida pellet exhibited the increment of sialo-conjugates induced by CSS. Further, lectin blotting revealed the increment of Sia α2-3- and α2-6-, but not α2-8-, -linked glycoprotein in CSS-overexpressing E. piscicida. Overall, these findings indicate the physiological significance of CSS and the role of sialylation in E. piscicida pathogenicity.
Collapse
Affiliation(s)
- Nhung Thi Tran
- Faculty of Fisheries, Kagoshima University, Kagoshima, Japan
| | - Linh Khanh Vo
- The United Graduate School of Agricultural Sciences, Kagoshima University, Kagoshima, Japan
| | - Masaharu Komatsu
- Faculty of Fisheries, Kagoshima University, Kagoshima, Japan; The United Graduate School of Agricultural Sciences, Kagoshima University, Kagoshima, Japan
| | - Kazuhiro Shiozaki
- Faculty of Fisheries, Kagoshima University, Kagoshima, Japan; The United Graduate School of Agricultural Sciences, Kagoshima University, Kagoshima, Japan.
| |
Collapse
|
4
|
Vo LK, Tran NT, Kubo Y, Sahashi D, Komatsu M, Shiozaki K. Enhancement of Edwardsiella piscicida infection, biofilm formation, and motility caused by N-acetylneuraminate lyase. Glycoconj J 2022; 39:429-442. [PMID: 35192095 DOI: 10.1007/s10719-022-10045-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 01/19/2022] [Accepted: 01/26/2022] [Indexed: 01/05/2023]
Abstract
Sialic acid and its catabolism are involved in bacterial pathogenicity. N-acetylneuraminate lyase (NAL), which catalyzes the reversible aldol cleavage of sialic acid to form N-acetyl-D-mannosamine in the first step of sialic acid degradation, has been recently investigated to elucidate whether NAL enhances bacterial virulence; however, the role of NAL in bacterial pathogenicity remains unclear. In the present study, we demonstrated that the existence of two enzymes in Edwardsiella piscicida, referred to as dihydrodipicolinate synthase (DHDPS) and NAL, induced the cleavage/condensation activity toward sialic acids such as N-acetylneuraminic acid, N-glycolylneuraminic acid and 3-deoxy-D-glycero-D-galacto-non-2-ulopyranosonic acid. NAL enhanced cellular infection in vitro and suppressed the survival rate in zebrafish larvae in bath-infection in vivo, whereas DHDPS did not. Furthermore, NAL strongly activated the expression of E. piscicida phenotypes such as biofilm formation and motility, whereas DHDPS did not. Besides, the gene expression level of nanK, nanE, and glmU were up-regulated in the NAL-overexpressing strain, along with an increase in the total amount of N-acetylglucosamine.
Collapse
Affiliation(s)
- Linh Khanh Vo
- The United Graduate School of Agricultural Sciences, Kagoshima University, Kagoshima, Japan
| | - Nhung Thi Tran
- Department of Food Life Sciences, Faculty of Fisheries, Kagoshima University, Kagoshima, Japan
| | - Yurina Kubo
- Department of Food Life Sciences, Faculty of Fisheries, Kagoshima University, Kagoshima, Japan
| | - Daichi Sahashi
- Department of Food Life Sciences, Faculty of Fisheries, Kagoshima University, Kagoshima, Japan
| | - Masaharu Komatsu
- The United Graduate School of Agricultural Sciences, Kagoshima University, Kagoshima, Japan.,Department of Food Life Sciences, Faculty of Fisheries, Kagoshima University, Kagoshima, Japan
| | - Kazuhiro Shiozaki
- The United Graduate School of Agricultural Sciences, Kagoshima University, Kagoshima, Japan. .,Department of Food Life Sciences, Faculty of Fisheries, Kagoshima University, Kagoshima, Japan.
| |
Collapse
|
5
|
Oishi K, Morise M, Vo LK, Tran NT, Sahashi D, Ueda-Wakamatsu R, Nishimura W, Komatsu M, Shiozaki K. Host lactosylceramide enhances Edwardsiella tarda infection. Cell Microbiol 2021; 23:e13365. [PMID: 33988901 DOI: 10.1111/cmi.13365] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 05/01/2021] [Accepted: 05/10/2021] [Indexed: 12/01/2022]
Abstract
Edwardsiella tarda is a Gram-negative bacterium causing economic damage in aquaculture. The interaction of E. tarda with microdomains is an important step in the invasion, but the target molecules in microdomains remain undefined. Here, we found that intraperitoneal injection of E. tarda altered splenic glycosphingolipid patterns in the model host medaka (Oryzias latipes) accompanied by alteration of glycosphingolipid metabolism-related gene expressions, suggesting that glycosphingolipid levels are involved in E. tarda infection. To ascertain the significance of glycosphingolipids in the infection, fish cell lines, DIT29 cells with a high amount of lactosylceramide (LacCer) and glucosylceramide (GlcCer), and GAKS cells with a low amount of these lipids, were treated with methyl-β-cyclodextrin to disrupt the microdomain. E. tarda infection was suppressed in DIT29 cells, but not in GAKS cells, suggesting the involvement of microdomain LacCer and GlcCer in the infection. DL-threo-1-phenyl-2-palmitoylamino-3-morpholino-1-propanol, an inhibitor of glycosphingolipid-synthesis, attenuated the infection in DIT29 cells, while Neu3-overexpressing GAKS cells, which accumulated LacCer, enhanced the infection. E. tarda possessed binding ability towards LacCer, but not GlcCer, and LacCer preincubation declined the infection towards fish cells, possibly due to the masking of binding sites. The present study suggests that LacCer may be a positive regulator of E. tarda invasion.
Collapse
Affiliation(s)
- Kazuki Oishi
- The United Graduate School of Agricultural Sciences, Kagoshima University, Kagoshima, Japan
| | - Moeri Morise
- Faculty of Fisheries, Kagoshima University, Kagoshima, Japan
| | - Linh Khanh Vo
- The United Graduate School of Agricultural Sciences, Kagoshima University, Kagoshima, Japan
| | - Nhung Thi Tran
- Faculty of Fisheries, Kagoshima University, Kagoshima, Japan
| | - Daichi Sahashi
- Faculty of Fisheries, Kagoshima University, Kagoshima, Japan
| | | | | | - Masaharu Komatsu
- The United Graduate School of Agricultural Sciences, Kagoshima University, Kagoshima, Japan.,Faculty of Fisheries, Kagoshima University, Kagoshima, Japan
| | - Kazuhiro Shiozaki
- The United Graduate School of Agricultural Sciences, Kagoshima University, Kagoshima, Japan.,Faculty of Fisheries, Kagoshima University, Kagoshima, Japan
| |
Collapse
|
6
|
Oishi K, Miyazaki M, Takase R, Chigwechokha PK, Komatsu M, Shiozaki K. Regulation of triglyceride metabolism in medaka (Oryzias latipes) hepatocytes by Neu3a sialidase. FISH PHYSIOLOGY AND BIOCHEMISTRY 2020; 46:563-574. [PMID: 31792756 DOI: 10.1007/s10695-019-00730-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Accepted: 11/01/2019] [Indexed: 06/10/2023]
Abstract
Fish store triglycerides (TGs) in the liver, muscle, and adipose tissue and TGs constitute an energy source upon metabolic demand. The liver generally plays important roles in lipid metabolism. Recent studies have suggested the possibility of hepatic lipid metabolic regulation by ganglioside in mammals; however, ganglioside-mediated regulation of lipid metabolism is unclear in fish. This study aimed to clarify the role of ganglioside in fish TG metabolism, with particular reference to Neu3a, a ganglioside-specific sialidase expressed in the fish liver. Under fasting conditions, there was a decrease in hepatic TG contents, and neu3a mRNA level was significantly up-regulated in the medaka liver. To determine the role of Neu3a in hepatic lipid metabolism, Neu3a stable transfectants were generated using fish liver Hepa-T1 cells. After treating Neu3a cells with oleic acid, reduction of TG was detected in comparison with the mock cells. Furthermore, lipase activity was greater in Neu3a cells than in mock cells. To examine which ganglioside regulates these events, alterations of ganglioside composition in Neu3a cells were analyzed. Neu3a cells exhibited increased level of lactosylceramide (LacCer), a Neu3 enzymatic product originating from GM3. In addition, exposure of LacCer toward Hepa-T1 cells resulted in an increase of neutral lipase activity. The present results suggest that Neu3a up-regulation in medaka under fasting condition accelerates hepatic TG degradation for energy production via GM3 desialylation.
Collapse
Affiliation(s)
- Kazuki Oishi
- Faculty of Fisheries, Kagoshima University, Kagoshima, 890-0056, Japan
- The United Graduate School of Agricultural Sciences, Kagoshima University, 4-50-20 Shimoarata, Kagoshima, 890-0056, Japan
| | - Mina Miyazaki
- Faculty of Fisheries, Kagoshima University, Kagoshima, 890-0056, Japan
| | - Ryo Takase
- Faculty of Fisheries, Kagoshima University, Kagoshima, 890-0056, Japan
| | | | - Masaharu Komatsu
- Faculty of Fisheries, Kagoshima University, Kagoshima, 890-0056, Japan
- The United Graduate School of Agricultural Sciences, Kagoshima University, 4-50-20 Shimoarata, Kagoshima, 890-0056, Japan
| | - Kazuhiro Shiozaki
- Faculty of Fisheries, Kagoshima University, Kagoshima, 890-0056, Japan.
- The United Graduate School of Agricultural Sciences, Kagoshima University, 4-50-20 Shimoarata, Kagoshima, 890-0056, Japan.
| |
Collapse
|
7
|
Desialylation by Edwardsiella tarda is the initial step in the regulation of its invasiveness. Biochem J 2019; 476:3183-3196. [DOI: 10.1042/bcj20190367] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 10/03/2019] [Accepted: 10/14/2019] [Indexed: 01/15/2023]
Abstract
AbstractEdwardsiella tarda is a gram-negative bacterium causing significant economic losses to aquaculture. E. tarda possesses NanA sialidase which removes sialic acids from α2–3 sialo-glycoprotein of host cells. However, the relationship between NanA sialidase activity and E. tarda invasiveness remains poorly understood. Furthermore, the pathway of sialic acid metabolism in E. tarda remains to be elucidated. We studied sialidase activity in several E. tarda strains and found that the pathogenic strains exhibited higher sialidase activity and greater up-regulation of the NanA mRNA level than non-pathogenic strain. Pathogenic strains also showed higher rates of infection in GAKS cells, and the infection was drastically suppressed by sialidase inhibitor. Additionally, NanA gene overexpression significantly increased infection and treatment of E. tarda with free sialic acid enhanced the rate of infection in GAKS cells. Sialic acid treatment enhanced mRNA levels of two N-acetylneuraminate lyases and one N-acetylneuraminate cytidylyltransferase. E. tarda uses sialic acid as a carbon source for growth via N-acetylneuraminate lyases. The strains with high N-acetylneuraminate cytidylyltransferase level showed greater sialylation of the lipopolysaccharides and glycoproteins. Our study establishes the significance of desialylation by E. tarda sialidase in the regulation of its invasiveness.
Collapse
|
8
|
Edwardsiella piscicida Enters Nonphagocytic Cells via a Macropinocytosis-Involved Hybrid Mechanism. J Bacteriol 2019; 201:JB.00548-18. [PMID: 30530518 DOI: 10.1128/jb.00548-18] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Accepted: 11/28/2018] [Indexed: 01/01/2023] Open
Abstract
Edwardsiella piscicida is an important pathogen that infects a wide range of hosts from fish to human. Recent studies demonstrated that E. piscicida can invade and survive within multiple nonphagocytic cells, but the internalization mechanism remains poorly understood. Here, we used HeLa cells as a nonphagocytic cell model to investigate the endocytic strategy used by the pathogenic E. piscicida isolate EIB202. Using a combination of optical and electron microscopy, we observed obvious membrane ruffles and F-actin rearrangements in HeLa cells after EIB202 infection. We also revealed that EIB202 internalization significantly depended on the activity of Na+/H+ exchangers and multiple intracellular signaling events related to macropinocytosis, suggesting that E. piscicida utilizes the host macropinocytosis pathway to enter HeLa cells. Further, using inhibitory drugs and shRNAs to block specific endocytic pathways, we found that a caveolin-dependent but not clathrin-dependent pathway is involved in E. piscicida entry and that its entry requires dynamin and membrane cholesterol. Together, these data suggest that E. piscicida enters nonphagocytic cells via macropinocytosis and caveolin-dependent endocytosis involving cholesterol and dynamin, improving the understanding of how E. piscicida interacts with nonphagocytic cells.IMPORTANCE Bacterial internalization is the first step in breaking through the host cell defense. Therefore, studying the mechanism of bacterial internalization improves the understanding of the pathogenic mechanism of bacteria. In this study, the internalization process on nonphagocytic cells by Edwardsiella piscicida was evaluated. Our results showed that E. piscicida can be internalized into nonphagocytic cells via macropinocytosis and caveolin-mediated endocytosis, and that cholesterol and dynamin are involved in this process. These results reveal a new method for inhibiting E. piscicida infection, providing a foundation for further studies of bacterial pathogenicity.
Collapse
|
9
|
Shiozaki K, Oishi K, Honda A. Functional Characterization of Fish Sialidases and Their Diversity among Different Orders. TRENDS GLYCOSCI GLYC 2019. [DOI: 10.4052/tigg.1518.1j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Kazuhiro Shiozaki
- Department of Food Life Sciences, Faculty of Fisheries, Kagoshima University
- The United Graduate School of Agricultural Sciences, Kagoshima University
| | - Kazuki Oishi
- The United Graduate School of Agricultural Sciences, Kagoshima University
| | - Akinobu Honda
- The United Graduate School of Agricultural Sciences, Kagoshima University
| |
Collapse
|
10
|
Noman Reza MA, Mohapatra S, Shimizu S, Kitamura SI, Harakawa S, Kawakami H, Nakayama K, Sawayama E, Matsubara T, Ohta K, Chakraborty T. Molecular cloning, characterization and expression analysis of complement components in red sea bream (Pagrus major) after Edwardsiella tarda and red sea bream Iridovirus (RSIV) challenge. FISH & SHELLFISH IMMUNOLOGY 2018; 82:286-295. [PMID: 30125707 DOI: 10.1016/j.fsi.2018.08.027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Revised: 08/08/2018] [Accepted: 08/14/2018] [Indexed: 06/08/2023]
Abstract
The complement system plays an important role in immune regulation and acts as the first line of defense against any pathogenic attack. To comprehend the red sea bream (Pagrus major) immune response, three complement genes, namely, pmC1r, pmMASP and pmC3, belonging to the classical, lectin and alternative complement cascade, respectively, were identified and characterized. pmC1r, pmMASP, and pmC3 were comprised of 2535, 3352, and 5735 base mRNA which encodes 732, 1029 and 1677 aa putative proteins, respectively. Phylogenetically, all the three studied genes clustered with their corresponding homologous clade. Tissue distribution and cellular localization data demonstrated a very high prevalence of all the three genes in the liver. Both bacterial and viral infection resulted in significant transcriptional alterations in all three genes in the liver with respect to their vehicle control counterparts. Specifically, bacterial challenge affected the pmMASP and pmC3 expression, while the viral infection resulted in pmC1r and pmC3 mRNA activation. Altogether, our data demonstrate the ability of pmC1r, pmMASP and pmC3 in bringing about an immune response against any pathogenic encroachment, and thus activating, not only one, but all the three complement pathways, in red sea bream.
Collapse
Affiliation(s)
- Mohammad Ali Noman Reza
- South Ehime Fisheries Research Center, Ehime University, Uchidomari, Ainan-cho, Ehime, 798-4206, Japan
| | - Sipra Mohapatra
- South Ehime Fisheries Research Center, Ehime University, Uchidomari, Ainan-cho, Ehime, 798-4206, Japan
| | - Sonoko Shimizu
- South Ehime Fisheries Research Center, Ehime University, Uchidomari, Ainan-cho, Ehime, 798-4206, Japan
| | - Shin-Ichi Kitamura
- Center for Marine Environmental Studies, Ehime University, 2-5 Bunkyo-cho, Matsuyama, Ehime, 790-8577, Japan
| | - Shogo Harakawa
- Ehime Prefectural Fish Disease Control Center, Uwajima, 798-0087, Japan
| | - Hidemasa Kawakami
- Ehime Prefectural Fish Disease Control Center, Uwajima, 798-0087, Japan
| | - Kei Nakayama
- Center for Marine Environmental Studies, Ehime University, 2-5 Bunkyo-cho, Matsuyama, Ehime, 790-8577, Japan
| | - Eitaro Sawayama
- R&D Division, Marua Suisan Co., Ltd., 4472 Iwagi, Kamijima-cho, Ochi-gun, Ehime, 794-2410, Japan
| | - Takahiro Matsubara
- South Ehime Fisheries Research Center, Ehime University, Uchidomari, Ainan-cho, Ehime, 798-4206, Japan
| | - Kohei Ohta
- Laboratory of Marine Biology, Faculty of Agriculture, Kyushu University, Fukuoka, 812-8581, Japan
| | - Tapas Chakraborty
- South Ehime Fisheries Research Center, Ehime University, Uchidomari, Ainan-cho, Ehime, 798-4206, Japan.
| |
Collapse
|
11
|
Unique nuclear localization of Nile tilapia ( Oreochromis niloticus ) Neu4 sialidase is regulated by nuclear transport receptor importin α/β. Biochimie 2018; 149:92-104. [DOI: 10.1016/j.biochi.2018.04.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Accepted: 04/04/2018] [Indexed: 02/02/2023]
|
12
|
Shiozaki K, Yoshikawa M, Kiguchiya S, Ikeda A, Kamada Y, Chigwechokha PK, Komatsu M. Matrix metalloproteinase-7 inhibitory activity of lipid extract from dwarf gulper shark (Centrophorus atromarginatus) through down-regulation of gene transcription. J Funct Foods 2017. [DOI: 10.1016/j.jff.2017.01.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
|
13
|
Shinyoshi S, Kamada Y, Matsusaki K, Chigwechokha PK, Tepparin S, Araki K, Komatsu M, Shiozaki K. Naringenin suppresses Edwardsiella tarda infection in GAKS cells by NanA sialidase inhibition. FISH & SHELLFISH IMMUNOLOGY 2017; 61:86-92. [PMID: 27988309 DOI: 10.1016/j.fsi.2016.12.018] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Revised: 12/11/2016] [Accepted: 12/13/2016] [Indexed: 06/06/2023]
Abstract
Edwardsiella tarda (E. tarda) is a gram-negative bacterium, which causes Edwardsiellosis in aquaculture. Previous studies indicate that E. tarda NanA sialidase plays crucial roles in infection through the desialylation of glycoproteins in fish cells. On the other hand, 2-deoxy-2,3-dehydro-N-acetylneuraminic acid, classic sialidase inhibitor, negatively regulates E. tarda infection of goldfish scale GAKS cells. Here, to development the suppression model of E. tarda infection for aquaculture application, the possibility of NanA inhibitory activities in citrus phytochemicals was evaluated as citrus extracts have widely been used as a supplement in fish diets for the improvement of meat quality. Some flavanones such as naringenin, hesperetin, hesperidin and naringin showed sialidase inhibitory activity toward recombinant NanA in vitro. Among them, naringenin showed the most potent inhibitory activity and its inhibitory pattern was non-competitive. Naringenin significantly suppressed E. tarda infection in GAKS cells at 200 and 400 μM without bactericidal effect on E. tarda. On the other hand, naringin, glycosylation form of naringenin, showed slight suppression of E. tarda infection toward GAKS cells, suggesting the glycosides on flavanone could be important for NanA inhibition. Fluorescence microscopy analysis verified that number of invading E. tarda in GAKS cells was declined by naringenin treatment. The present study exhibited the possibility of naringenin as an effective ingredient in fish diet for the inhibition of E. tarda infection.
Collapse
Affiliation(s)
| | - Yuko Kamada
- Faculty of Fisheries, Kagoshima University, Kagoshima, Japan
| | - Koki Matsusaki
- Faculty of Fisheries, Kagoshima University, Kagoshima, Japan
| | - Petros Kingstone Chigwechokha
- Department of Fisheries, Mzuzu University, Mzuzu, Malawi; The United Graduate School of Agricultural Sciences, Kagoshima University, Kagoshima, Japan
| | | | - Kyosuke Araki
- Faculty of Fisheries, Kagoshima University, Kagoshima, Japan; The United Graduate School of Agricultural Sciences, Kagoshima University, Kagoshima, Japan
| | - Masaharu Komatsu
- Faculty of Fisheries, Kagoshima University, Kagoshima, Japan; The United Graduate School of Agricultural Sciences, Kagoshima University, Kagoshima, Japan
| | - Kazuhiro Shiozaki
- Faculty of Fisheries, Kagoshima University, Kagoshima, Japan; The United Graduate School of Agricultural Sciences, Kagoshima University, Kagoshima, Japan.
| |
Collapse
|
14
|
Tang J, Zheng H, Chen L, Gao S, Shi X, Liu J, Xu L. Isoform-specific regulation of osteogenic factors by polypeptide N-Acetylgalactosaminyltransferases 1 and 4. Biochem Biophys Res Commun 2017; 482:1449-1454. [PMID: 27965094 DOI: 10.1016/j.bbrc.2016.12.056] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Accepted: 12/08/2016] [Indexed: 11/27/2022]
Abstract
The family of UDP-GalNAc polypeptide: N-Acetylgalactosaminlytransfersases (ppGalNAcTs) catalyzes the initial step of O-linked protein glycosylation. Mucin-type O-glycoproteins are abundant in the bone and may play an important role in osteogenesis. Herein, we examined the effects of ppGalNAc-T isoforms on osteogenesis of MC3T3-E1 pre-osteoblasts. We found that ppGalNAc-T1 and -T4 isoforms were highly expressed during osteogenesis of MC3T3-E1 and their knockdown by short hairpin RNA (shRNA) decreased osteoblast formation and bone mineralization. Knockdown of ppGalNAc-T1 or -T4 decreased mRNA and protein levels of bone sialoprotein (BSP). Knockdown of ppGalNAc-T1decreased mRNA levels of osteocalcin (OC), osteoprotegerin (OPG). Knockdown ofppGalNAc-T4 isoform decreased mRNA levels of OC, OPG and vitamin D receptor (VDR). While knockdown of T1 or T4 isoforms did not change the expression of osteopontin (OPN), COLLI, receptor activator for nuclear factor-κB ligand (RANKL) and transforming growth factor-β (TGF-β). Our results demonstrated that the ppGalNAc-T4 was highly expressed in MC3T3-E1 cells during osteogenesis for the first time. We also found that ppGalNAc-T1 and -T4 affected the expression of different osteogenic factors, suggesting distinct roles ppGalNAc-T isoformsplay in regulating osteogenesis in vitro.
Collapse
Affiliation(s)
- Juan Tang
- Department of Biochemistry and Molecular Biology, Soochow University Medical College, Suzhou, 215123, China
| | - Hanxi Zheng
- Department of Biochemistry and Molecular Biology, Soochow University Medical College, Suzhou, 215123, China
| | - Ling Chen
- Department of Biochemistry and Molecular Biology, Soochow University Medical College, Suzhou, 215123, China
| | - Shangshang Gao
- Department of Biochemistry and Molecular Biology, Soochow University Medical College, Suzhou, 215123, China
| | - Xiaorui Shi
- Department of Biochemistry and Molecular Biology, Soochow University Medical College, Suzhou, 215123, China
| | - Jingjing Liu
- Department of Biochemistry and Molecular Biology, Soochow University Medical College, Suzhou, 215123, China.
| | - Lan Xu
- Department of Biochemistry and Molecular Biology, Soochow University Medical College, Suzhou, 215123, China.
| |
Collapse
|