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Li S, An M, Zhao Y, Zhao W, Li P, Du B. Immunomodulatory peptides from sturgeon cartilage: Isolation, identification, molecular docking and effects on RAW264.7 cells. Food Chem X 2024; 24:101863. [PMID: 39431208 PMCID: PMC11488438 DOI: 10.1016/j.fochx.2024.101863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2024] [Revised: 09/25/2024] [Accepted: 09/26/2024] [Indexed: 10/22/2024] Open
Abstract
Sturgeons (Acipenseridae), ancient fish known for their caviar, produce underutilized by-products like protein-rich cartilage, which is a source of high-quality bioactive peptides. This study investigates immunomodulatory peptides from sturgeon cartilage hydrolysates mechanisms. The study found that sturgeon cartilage hydrolysate F2-7 and its key peptides(DHVPLPLP and HVPLPLP)significantly promoted RAW267.4 cell proliferation, NO release, and phagocytosis (P < 0.001).Additionally, western blotting confirmed that F2-7 enhances immune response by increasing the expression of P-IKKα/β, IΚΚ, p65, and P-p65 proteins in the NF-κB signalling pathway (P < 0.01). Molecular docking further demonstrated that DHVPLPLP and HVPLPLP bind to NF-κB pathway proteins via hydrogen bonding, with low estimated binding energies (-2.75 and -1.64; -6.04 and -4.75 kcal/mol), thus establishing their role as key immune peptides in F2-7. Therefore, DHVPLPLP and HVPLPLP have the potential to be developed as dietary supplements for immune enhancement. Their ability to enhance immune function provides a theoretical basis for novel immune supplements.
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Affiliation(s)
- Shuchan Li
- College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Miaoqing An
- College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Yuxuan Zhao
- College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Wenjun Zhao
- College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Pan Li
- College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Bing Du
- College of Food Science, South China Agricultural University, Guangzhou 510642, China
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Zhao XL, Guo ZL, Qi KL, Zhou QS, Liu YM, Xiong LX, Zhang J, Zhang J, Zhang WJ. The Polysaccharides from Pinellia ternata and Their Derivatives: Preparation, Structure Characteristics, and Activities in Vitro. Chem Biodivers 2024; 21:e202400596. [PMID: 38804585 DOI: 10.1002/cbdv.202400596] [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: 03/09/2024] [Revised: 05/24/2024] [Accepted: 05/28/2024] [Indexed: 05/29/2024]
Abstract
Three polysaccharides, PTC, PTH, and PTB, were extracted from Pinellia ternata using three different extraction conditions: room temperature water, hot water, and 2 % Na2CO3 solution. PTC and PTH were composed of rhamnose, glucose, galactose, mannose, glucuronic acid, galacturonic acid, and arabinose, which combine to form complex structures. PTB was composed solely of glucose and rhamnose. Further analysis indicated that PTC and PTB exhibited triple-helix structures. PTC showed the highest scavenging capacity against DPPH, superoxide anion, and hydroxyl radicals, with half maximal inhibitory concentrations (IC50) of 1004.1, 1584.1, and 1584.1 μg/mL, respectively. Additionally, PTC, PTH, and PTB were subjected to sulfation, phosphorylation, and selenization, resulting in the production of nine derivates. The distinctive absorptive bands of these derivates were determined through infrared spectroscopy. Selenized and sulfated derivates have shown significant antitumor and immunoenhancing properties. Our findings revealed that at 400 μg/mL, the inhibition rate of selenated PTB on HeLa cells was 54.2 % and that on HepG2 cells was 43.1 %. Additionally, selenized PTC displayed significant immunoenhancing activity, with a proliferation rate of 63.7 % at 400 μg/mL in RAW264.7 cells. These results provide valuable evidence supporting the consideration of polysaccharides from Pinellia ternata as a potential candidate for the development of antineoplastic drugs.
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Affiliation(s)
- Xiao-Liang Zhao
- School of Life Science and Engineering, Lanzhou University of Technology, Lanzhou, 730050, PR China
- Key Laboratory of Drug Screening and Deep Processing for Traditional Chinese and Tibetan Medicine of Gansu Province, Lanzhou, 730050, PR China
| | - Zheng-Lei Guo
- School of Life Science and Engineering, Lanzhou University of Technology, Lanzhou, 730050, PR China
| | - Kai-Li Qi
- School of Life Science and Engineering, Lanzhou University of Technology, Lanzhou, 730050, PR China
| | - Qing-Song Zhou
- School of Life Science and Engineering, Lanzhou University of Technology, Lanzhou, 730050, PR China
| | - Yan-Mei Liu
- School of Life Science and Engineering, Lanzhou University of Technology, Lanzhou, 730050, PR China
| | - Li-Xia Xiong
- School of Life Science and Engineering, Lanzhou University of Technology, Lanzhou, 730050, PR China
| | - Jing Zhang
- School of Life Science and Engineering, Lanzhou University of Technology, Lanzhou, 730050, PR China
- Key Laboratory of Drug Screening and Deep Processing for Traditional Chinese and Tibetan Medicine of Gansu Province, Lanzhou, 730050, PR China
| | - Ji Zhang
- College of Life Science, Northwest Normal University, Lanzhou, 730070, PR China
| | - Wei-Jie Zhang
- School of Life Science and Engineering, Lanzhou University of Technology, Lanzhou, 730050, PR China
- Key Laboratory of Drug Screening and Deep Processing for Traditional Chinese and Tibetan Medicine of Gansu Province, Lanzhou, 730050, PR China
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Waswa EN, Ding SX, Wambua FM, Mkala EM, Mutinda ES, Odago WO, Amenu SG, Muthui SW, Linda EL, Katumo DM, Waema CM, Yang JX, Hu GW. The genus Actinidia Lindl. (Actinidiaceae): A comprehensive review on its ethnobotany, phytochemistry, and pharmacological properties. JOURNAL OF ETHNOPHARMACOLOGY 2024; 319:117222. [PMID: 37793579 DOI: 10.1016/j.jep.2023.117222] [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: 06/11/2023] [Revised: 09/11/2023] [Accepted: 09/22/2023] [Indexed: 10/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Actinidia Lindl. belongs to the family Actinidiaceae. Plants of this genus are popularly known as kiwifruits and are traditionally used to treat a wide range of ailments associated with digestive disorders, rheumatism, kidney problems, cardiovascular system, cancers, dyspepsia, hemorrhoids, and diabetes among others. AIM This review discusses the ethnobotanical uses, phytochemical profile, and known pharmacological properties of Actinidia plants, to understand their connotations and provide the scientific basis for future studies. MATERIALS AND METHODS The data were obtained by surveying journal articles, books, and dissertations using various search engines such as Google Scholar, PubMed, Science Direct, Springer Link, and Web of Science. The online databases; World Flora Online, Plants of the World Online, International Plant Names Index, and Global Biodiversity Information Facility were used to confirm the distribution and validate scientific names of Actinidia plants. The isolated metabolites from these species were illustrated using ChemBio Draw ultra-version 14.0 software. RESULTS Ten (10) species of Actinidia genus have been reported as significant sources of traditional medicines utilized to remedy diverse illnesses. Our findings revealed that a total of 873 secondary metabolites belonging to different classes such as terpenoids, phenolic compounds, alcohols, ketones, organic acids, esters, hydrocarbons, and steroids have been isolated from different species of Actinidia. These compounds were mainly related to the exhibited antioxidant, antimicrobial, anti-inflammatory, antidiabetic, antiproliferative, anti-angiogenic, anticinoceptive, anti-tumor, and anticancer activities. CONCLUSION This study assessed the information related to the ethnobotanical uses, phytochemical compounds, and pharmacological properties of Actinidia species, which indicate that they possess diverse bioactive metabolites with interesting bioactivities. Actinidia plants have great potential for applications in folklore medicines and pharmaceuticals due to their wide ethnomedicinal uses and biological activities. Traditional uses of several Actinidia species are supported by scientific evidences, qualifying them as possible modern remedies for various ailments. Nonetheless, the currently available data has several gaps in understanding the herbal utilization of most Actinidia species. Thus, further research into their toxicity, mechanisms of actions of the isolated bioactive metabolites, as well as scientific connotations between the traditional medicinal uses and pharmacological properties is required to unravel their efficacy in therapeutic potential for safe clinical application.
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Affiliation(s)
- Emmanuel Nyongesa Waswa
- CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China; Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan, 430074, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Shi-Xiong Ding
- CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China; Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan, 430074, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Felix Muema Wambua
- CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China; Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan, 430074, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Elijah Mbandi Mkala
- CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China; Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan, 430074, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Elizabeth Syowai Mutinda
- CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China; Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan, 430074, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Wyclif Ochieng Odago
- CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China; Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan, 430074, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Sara Getachew Amenu
- CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China; Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan, 430074, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Samuel Wamburu Muthui
- CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China; Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan, 430074, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Elive Limunga Linda
- CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China; Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan, 430074, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Hubei University, Wuhan, 430011, China
| | | | | | - Jia-Xin Yang
- CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China; Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan, 430074, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Guang-Wan Hu
- CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China; Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan, 430074, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Hubei Jiangxia Laboratory, Wuhan, 430200, China.
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Xiong B, Chen X, Tu J, Han Z, Meng X, Sun H. Actinidia eriantha polysaccharide exerts adjuvant activity by targeting linc-AAM. Int J Biol Macromol 2023; 252:126440. [PMID: 37611690 DOI: 10.1016/j.ijbiomac.2023.126440] [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: 04/25/2023] [Revised: 07/17/2023] [Accepted: 08/18/2023] [Indexed: 08/25/2023]
Abstract
Actinidia eriantha polysaccharide (AEPS) is a potent adjuvant with dual Th1 and Th2 potentiating activity. linc-AAM has been previously proved to facilitate the expression of immune response genes (IRGs) in AEPS-activated RAW264.7 macrophages. However, its role in mediating adjuvant activity of AEPS remains to be elucidated. In this study, bone marrow-derived macrophages (BMDMs) from wide-type (WT) and linc-AAM knockout C57BL/6J mice treated with AEPS were subjected to transcriptome sequencing and bioinformatic analysis. linc-AAM deficiency inhibited M1 and M2 immune responses in BMDMs induced by AEPS. In mechanisms, AEPS facilitated the expression of IRGs and activated BMDMs through NF-κB-linc-AAM-JAK/STAT axis. Furthermore, linc-AAM knockout inhibited cytokine and chemokine production, immune cell recruitment as well as immune cell migration to draining lymph nodes at peritoneal cavity in mice induced by AEPS. More importantly, linc-AAM deletion reduced the adjuvant activity of APES on antigen-specific cellular and humoral immune responses to ovalbumin in mice. This study has for the first time demonstrated the role of lncRNAs in regulating the adjuvant activity of polysaccharides and its mechanisms. These findings expanded current knowledge on the mechanism of action of adjuvant and provide a new target for the design and development of vaccine adjuvants.
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Affiliation(s)
- Beibei Xiong
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, Zhejiang, China
| | - Xiangfeng Chen
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, Zhejiang, China
| | - Jue Tu
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, Zhejiang, China; Academy of Chinese Medical Sciences, Zhejiang Chinese Medical University, Hangzhou 310058, Zhejiang, China
| | - Ziyi Han
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, Zhejiang, China
| | - Xiang Meng
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, Zhejiang, China
| | - Hongxiang Sun
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, Zhejiang, China.
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5
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Wang S, Gao X, Sun Q, Zhu Y, Qin L, Zhu B. The phytochemical properties, pharmacological effects and traditional uses of Actinidia eriantha Benth.: A review. Front Pharmacol 2022; 13:959900. [PMID: 36059997 PMCID: PMC9437332 DOI: 10.3389/fphar.2022.959900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Accepted: 07/21/2022] [Indexed: 11/23/2022] Open
Abstract
Actinidia eriantha Benth. (Called Maohuamihoutao in China) is a plant that has been utilized as a heat-clearing drug in She ethnic minority group for a long time in China. Specifically, it has been involved in the treatment of stomach cancer, colon cancer, cirrhosis with ascites, chronic hepatitis, leukemia, rectal prolapse, hernia and uterine prolapse. Pharmacological research provides partial evidence for the traditional use of A. eriantha and might have demonstrated the folk utilization of A. eriantha to combat many cancers. Crude extracts and relatively pure components of A. eriantha possess a variety of pharmacological activities, including anti-cancer, immunoregulatory, anti-angiogenic, neuroprotective, anti-inflammatory, and antioxidant activities. In addition, over 104 chemical substances have been determined from A. eriantha, involving terpenoids, alcohols, phenolics, aldehydes, organic acids, flavonoids glycosides, ketones, and glucoside. The existing literature reveals that a large proportion of the therapeutic effects of A. eriantha were rendered by the polysaccharides. However, the mechanisms of action and the structure-function correlations of these compounds, as well as the synergistic and antagonistic effects between them, need to be investigated further. Therefore, we propose that future studies on A. eriantha should focus on comprehensively assessing its medicinal quality, exploring its multi-target nature using network pharmacology approaches, and evaluating its long-term toxicity and efficacy in vivo.
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Affiliation(s)
| | | | | | | | | | - Bo Zhu
- *Correspondence: Luping Qin, ; Bo Zhu,
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6
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Tian J, Tang C, Wang X, Zhang X, Xiao L, Li W. Supramolecular structure features and immunomodulatory effects of exopolysaccharide from Paecilomyces cicadae TJJ1213 in RAW264.7 cells through NF-κB/MAPK signaling pathways. Int J Biol Macromol 2022; 207:464-474. [PMID: 35278511 DOI: 10.1016/j.ijbiomac.2022.03.029] [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: 09/08/2021] [Revised: 02/26/2022] [Accepted: 03/07/2022] [Indexed: 12/11/2022]
Abstract
This study investigated the supramolecular structure features and immunomodulatory effects of two exopolysaccharide fractions (EPS1 and EPS2) from Paecilomyces cicada TJJ1213 in vitro. AFM images revealed that EPS1 and EPS2 displayed different morphological features at different concentrations. Congo red and XRD assay further proved that EPS1 and EPS2 mainly exhibited amorphous structure with random coil conformation in solution. Furthermore, the immunomodulatory effect of EPSs was investigated on RAW264.7 cells. Results showed that EPS1 and EPS2 could enhance the phagocytic activity and induce the NO production and could also significantly up-regulate the mRNA expression of iNOS, TNF-α, IL-6, IL-1β, IFN-γ and IL-4. Western blot assay analysis demonstrated that EPSs increased protein expression of TLR4 and the nuclear translocation of NF-κB p50/p65. Additionally, the phosphorylation levels of MAPKs proteins (p38, ERK and JNK) were also remarkably increased. Thus, EPSs could active TLR4-NF-κB/MAPKs signaling pathways to exert the immunomodulatory effect on macrophages.
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Affiliation(s)
- Juanjuan Tian
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, PR China
| | - Chao Tang
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, PR China
| | - Xiaomeng Wang
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, PR China
| | - Xueliang Zhang
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, PR China
| | - Luyao Xiao
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, PR China
| | - Wei Li
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, PR China.
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Wei H, Wang Y, Li W, Qiu Y, Hua C, Zhang Y, Guo Z, Xie Z. Immunomodulatory activity and active mechanisms of a low molecular polysaccharide isolated from Lanzhou lily bulbs in RAW264.7 macrophages. J Funct Foods 2022. [DOI: 10.1016/j.jff.2022.105071] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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8
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Wang D, Wang J, Liu H, Liu M, Yang Y, Zhong S. The Main Structural Unit Elucidation and Immunomodulatory Activity In Vitro of a Selenium-Enriched Polysaccharide Produced by Pleurotus ostreatus. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27082591. [PMID: 35458788 PMCID: PMC9027278 DOI: 10.3390/molecules27082591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 04/07/2022] [Accepted: 04/12/2022] [Indexed: 11/16/2022]
Abstract
In recent years, the structure of selenium-enriched polysaccharides and their application in immunomodulation have attracted much attention. In previous studies, we extracted and purified a novel selenium-enriched Pleurotus ostreatus polysaccharide called Se-POP-21, but its structure and immunomodulatory activity were still unclear. In this study, the main structural unit formula of Se-POP-21 was characterized by methylation analysis and an NMR experiment. The results showed that the backbone of Se-POP-21 was →[2,6)-α-D-Galp-(1→6)-α-D-Galp-(1]4→2,4)-β-L-Arap-(1→[2,6)-α-D-Galp-(1→6)-α-D-Galp-(1]4→, branched chain of β-D-Manp-(1→ and β-D-Manp-(1→4)-β-L-Arap-(1→ connected with →2,6)-α-D-Galp-(1→ and →2,4)-β-L-Arap-(1→,respectively, through the O-2 bond. In vitro cell experiments indicated that Se-POP-21 could significantly enhance the proliferation and phagocytosis of RAW264.7 cells, upregulate the expression of costimulatory molecules CD80/CD86, and promote RAW264.7 cells to secrete NO, ROS, TNF-α, IL-1β, and IL-6 by activating the NF-κB protein. The results of this study indicate that Se-POP-21 can effectively activate RAW264.7 cells. Thus, it has the potential to be used in immunomodulatory drugs or functional foods.
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Gao S, Yan S, Zhou Y, Feng Y, Xie X, Guo W, Shen Q, Chen C. Optimisation of enzyme-assisted extraction of Erythronium sibiricum bulb polysaccharide and its effects on immunomodulation. Glycoconj J 2022; 39:357-368. [PMID: 35138526 DOI: 10.1007/s10719-021-10038-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 12/22/2021] [Accepted: 12/29/2021] [Indexed: 12/01/2022]
Abstract
In this study, polysaccharides of Erythronium sibiricum bulb were extracted using enzyme-assisted extraction technology and then optimised by response surface methodology. The characteristics and immunomodulatory activities of the polysaccharide (E1P) were investigated. Setting the yield of polysaccharides as the index, the effects of amylase content, zymolytic time, extraction pH and zymolytic temperature were investigated. The optimal extraction conditions for polysaccharides were as follows: amylase content, 1% weight of pre-treated powder; zymolytic time, 2 h; extraction pH, 7.5; and zymolytic temperature, 55 °C. The yield was predicted to be 61.10%, which agreed with the value obtained in confirmatory experiments (59.71% ± 2.72%). Further research indicated that the primary component of E1P is glucose; however, it also contains a small quantity of galactose and arabinose. In vitro assays showed that E1P and ESBP (another kind of E. sibiricum bulb polysaccharide extracted by water decoction in our previous study) could significantly promote the cellular viability and phagocytosis of RAW264.7 cells without cytotoxicity. Moreover, they could enhance the ability to secrete nitric oxide and cytokines such as TNF-α and IL-1β. However, the immunomodulatory activities of E1P were better than those of ESBP. According to the results of this study, enzyme-assisted extraction represents a new strategy for extracting E. sibiricum bulb polysaccharides with higher yield and better immune activity.
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Affiliation(s)
- Shanshan Gao
- Pharmacy College, Xinjiang Medical University, Urumqi, 830011, Xinjiang, China
| | - Shujing Yan
- Pharmacy College, Xinjiang Medical University, Urumqi, 830011, Xinjiang, China
| | - Yue Zhou
- Pharmacy College, Xinjiang Medical University, Urumqi, 830011, Xinjiang, China
| | - Yue Feng
- Urumqi Customs District P.R. China, Urumqi, 830011, Xinjiang, China
| | - Xiangyun Xie
- Pharmacy College, Xinjiang Medical University, Urumqi, 830011, Xinjiang, China
| | - Wei Guo
- Pharmacy College, Xinjiang Medical University, Urumqi, 830011, Xinjiang, China
| | - Qi Shen
- Pharmacy College, Xinjiang Medical University, Urumqi, 830011, Xinjiang, China
| | - Chunli Chen
- Pharmacy College, Xinjiang Medical University, Urumqi, 830011, Xinjiang, China.
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PAN F, LI S, ZHU X, YANG J, WEN J, SONG C, LUO X, RUAN G, LIU Y. Purification and the effects on structure and bioactivity for polysaccharide from Actinidia valvata Dunn. using macroporous adsorption resin. FOOD SCIENCE AND TECHNOLOGY 2022. [DOI: 10.1590/fst.99721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Feng PAN
- Zunyi Medical University, China; Zunyi Medical University, China
| | | | | | | | | | | | - Xirong LUO
- Zunyi Vocational and Technical College, China
| | | | - Yun LIU
- Zunyi Medical University, China; Zunyi Medical University, China
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Qiu S, Zhang R, Guo Y, Zhao Y, Zhao Z, Liu W. Transcriptome analysis reveals potential mechanisms of the effects of dietary Enteromorpha polysaccharides on bursa of Fabricius in broilers. Vet Med Sci 2021; 7:1881-1889. [PMID: 34265184 PMCID: PMC8464242 DOI: 10.1002/vms3.573] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
The present study was conducted to evaluate the effects of dietary supplementation of Enteromorpha polysaccharides (EP) on relative organ weight of broilers, and RNA-seq technique was used to reveal the potential molecular mechanisms of the positive effects of EP on relative organ weight. A total of 396 1-day-old male chicks (Arbor Acres) were randomly assigned to six dietary treatments containing EP at 0 (EP0), 1000 (EP1000), 2500 (EP2500), 4000 (EP4000), 5500 (EP5500), and 7000 (EP7000) mg/kg levels for a 35-day feeding trial. At the end of feeding trail, six birds (one bird from each replicate cage) were randomly selected from each treatment and then slaughtered for relative organ weight analysis. The results showed that the relative weight of bursa of Fabricius were increased in the EP1000 group (p < 0.05), and then three bursa of Fabricius samples from each group (EP0 and EP1000) were randomly selected for RNA-seq analysis. The results of RNA-seq analysis showed that there were 20 differentially expressed genes (DEGs) between EP0 and EP1000 groups, among the DEGs, 6 genes were upregulated and 14 genes were downregulated by EP1000 supplementation (p-adjust < 0.05). Gene ontology (GO) enrichment analysis suggested that the DEGs were mainly enriched in negative regulation of toll-like receptor 9 signaling pathway (p-corrected < 0.05). Kyoto encyclopedia of genes and genomes (KEGG) enrichment analysis showed that the DEGs were mainly enriched in phagosome, mitophagy-animal, Salmonella infection, autophagy-animal signaling pathways (p-corrected = 0.081). Taken together, dietary EP supplementation at 1000 mg/kg level promoted the relative weight of bursa of Fabricius may be involved in improving the immune function of broilers. These findings provided a reference for further exploring the specific molecular mechanism of EP that affecting the organ development in broilers.
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Affiliation(s)
- Sheng‐Jian Qiu
- Department of Animal ScienceCollege of Coastal Agricultural SciencesGuangdong Ocean UniversityZhanjiangGuangdong ProvinceP. R. China
| | - Rui Zhang
- Shenzhen Institute, Guangdong Ocean UniversityShenzhenP. R. China
- College of Food Science and TechnologyModern Biochemistry Experimental CenterGuangdong Ocean UniversityZhanjiangGuangdongP. R. China
| | - Yan Guo
- Department of Animal ScienceCollege of Coastal Agricultural SciencesGuangdong Ocean UniversityZhanjiangGuangdong ProvinceP. R. China
| | - Yue Zhao
- Department of Animal ScienceCollege of Coastal Agricultural SciencesGuangdong Ocean UniversityZhanjiangGuangdong ProvinceP. R. China
| | - Zhi‐Hui Zhao
- Department of Animal ScienceCollege of Coastal Agricultural SciencesGuangdong Ocean UniversityZhanjiangGuangdong ProvinceP. R. China
| | - Wen‐Chao Liu
- Department of Animal ScienceCollege of Coastal Agricultural SciencesGuangdong Ocean UniversityZhanjiangGuangdong ProvinceP. R. China
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Jiang S, Wang R, Han L, Kuerban K, Ye L, Pan S, Li S, Yuan Y. Activation of autophagy reverses gemcitabine-induced immune inhibition of RAW264.7 macrophages by promoting TNF-α, IL-6 and MHC-II expression. Immunol Res 2021; 69:352-362. [PMID: 34259987 PMCID: PMC8342359 DOI: 10.1007/s12026-021-09210-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 06/30/2021] [Indexed: 12/03/2022]
Abstract
This research aims to investigate the effect of gemcitabine (GEM) on various activities and functions of macrophages. Phagocytosis, cell autophagy and reactive oxygen species (ROS) were analysed by laser scanning confocal microscope. The cell cycle status and major histocompatibility complex II (MHC-II) expression were examined by flow cytometry. Inflammatory cytokine secretion such as tumour necrosis factor α (TNF-α) and interleukin 6 (IL-6) was detected by Elisa assay. The expression of proteins was analysed by western blot method. The results revealed that GEM-induced immune inhibition of M1-type RAW264.7 macrophages activated by interferon-γ (IFN-γ) and lipopolysaccharide (LPS). We also found that GEM inhibited autophagy, as evidenced by the reduced formation of autophagosome-like vacuoles and autophagosomes. Further study showed that incubation of activated macrophages with the autophagy inhibitor 3-MA induced immune suppression. In contrast, treatment with the autophagy inducer trehalose (Tre) restored phagocytosis, TNF-α and IL-6 secretion, and MHC-II expression in GEM-induced immune-inhibited macrophages. GEM reduced immune effect of M1-type RAW264.7 macrophages via inhibiting TNF-α, IL-6 and MHC-II expression. Furthermore, activation of autophagy by Tre reversed GEM-induced immune inhibition of RAW264.7 macrophages.
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Affiliation(s)
- Shanshan Jiang
- Department of Pharmacy, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, 200011, China
| | - Rong Wang
- Department of Pharmacy, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, 200011, China
| | - Lu Han
- Department of Pharmacy, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, 200011, China
| | - Kudelaidi Kuerban
- Department of Microbiological and Biochemical Pharmacy & The Key Laboratory of Smart Drug Delivery, Ministry of Education, School of Pharmacy, Fudan University, Shanghai, 201203, China
| | - Li Ye
- Department of Microbiological and Biochemical Pharmacy & The Key Laboratory of Smart Drug Delivery, Ministry of Education, School of Pharmacy, Fudan University, Shanghai, 201203, China
| | - Shu Pan
- Department of Pharmacy, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, 200011, China
| | - Shengnan Li
- Department of Pharmacy, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, 200011, China
| | - Yongfang Yuan
- Department of Pharmacy, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, 200011, China.
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Guo T, Akan OD, Luo F, Lin Q. Dietary polysaccharides exert biological functions via epigenetic regulations: Advance and prospectives. Crit Rev Food Sci Nutr 2021; 63:114-124. [PMID: 34227906 DOI: 10.1080/10408398.2021.1944974] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Bioactive substances derived from natural products are valued for effective health-related activities. As extremely important component of plants, animal cell membrane and microbes cytoderm, polysaccharides have been applied as medications, foods and cosmetics stemming from their prominent biological functions and minor side-effects. Recent studies indicate that polysaccharides exert biological effects also through epigenetic mechanism. Through the intervention of DNA methylation, histone modification, and non-coding RNA, polysaccharides participatate in regulation of immunity/inflammation, glucose and lipid metabolism, antioxidant damage and anti-tumor, which presents novel mechanism of polysaccharide exerting various functions. In this review, the latest advances in the biological functions of dietary polysaccharides via epigenetic regulations were comprehensively summarized and discussed. From the view point of epigenetic regulation, investigating the relationship between polysaccharides and biological effects will enhance our understandings of polysaccharides and also means huge breakthrough of molecular mechanism in the polysaccharide research fields. The paper will provide important reference to these investigators of polysaccharide research and expand the applications of dietary polysaccharides in the functional food developments.
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Affiliation(s)
- Tianyi Guo
- Hunan Key Laboratory of Grain-oil Deep Process and Quality Control, Hunan Key Laboratory of Processed Food for Special Medical Purpose, Hunan Key Laboratory of Forestry Edible Resources Safety and Processing, National Engineering Laboratory for Deep Process of Rice and Byproducts, Central South University of Forestry and Technology, Changsha, Hunan, China
| | - Otobong Donald Akan
- Hunan Key Laboratory of Grain-oil Deep Process and Quality Control, Hunan Key Laboratory of Processed Food for Special Medical Purpose, Hunan Key Laboratory of Forestry Edible Resources Safety and Processing, National Engineering Laboratory for Deep Process of Rice and Byproducts, Central South University of Forestry and Technology, Changsha, Hunan, China
| | - Feijun Luo
- Hunan Key Laboratory of Grain-oil Deep Process and Quality Control, Hunan Key Laboratory of Processed Food for Special Medical Purpose, Hunan Key Laboratory of Forestry Edible Resources Safety and Processing, National Engineering Laboratory for Deep Process of Rice and Byproducts, Central South University of Forestry and Technology, Changsha, Hunan, China
| | - Qinlu Lin
- Hunan Key Laboratory of Grain-oil Deep Process and Quality Control, Hunan Key Laboratory of Processed Food for Special Medical Purpose, Hunan Key Laboratory of Forestry Edible Resources Safety and Processing, National Engineering Laboratory for Deep Process of Rice and Byproducts, Central South University of Forestry and Technology, Changsha, Hunan, China
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Zhao Y, Balasubramanian B, Guo Y, Qiu SJ, Jha R, Liu WC. Dietary Enteromorpha Polysaccharides Supplementation Improves Breast Muscle Yield and Is Associated With Modification of mRNA Transcriptome in Broiler Chickens. Front Vet Sci 2021; 8:663988. [PMID: 33937385 PMCID: PMC8085336 DOI: 10.3389/fvets.2021.663988] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 03/16/2021] [Indexed: 01/01/2023] Open
Abstract
The present study evaluated the effects of dietary supplementation of Enteromorpha polysaccharides (EP) on carcass traits of broilers and potential molecular mechanisms associated with it. This study used RNA-Sequencing (RNA-Seq) to detect modification in mRNA transcriptome and the cognate biological pathways affecting the carcass traits. A total of 396 one-day-old male broilers (Arbor Acres) were randomly assigned to one of six dietary treatments containing EP at 0 (CON), 1000 (EP_1000), 2500 (EP_2500), 4000 (EP_4000), 5500 (EP_5500), and 7000 (EP_7000) mg/kg levels for a 35-d feeding trial with 6 replicates/treatment. At the end of the feeding trial, six birds (one bird from each replicate cage) were randomly selected from each treatment and slaughtered for carcass traits analysis. The results showed that the dietary supplementation of EP_7000 improved the breast muscle yield (p < 0.05). Subsequently, six breast muscle samples from CON and EP_7000 groups (three samples from each group) were randomly selected for RNA-Seq analysis. Based on the RNA-Seq results, a total of 154 differentially expressed genes (DEGs) were identified (p < 0.05). Among the DEGs, 112 genes were significantly upregulated, whereas 42 genes were significantly down-regulated by EP_7000 supplementation. Gene Ontology enrichment analysis showed that the DEGs were mainly enriched in immune-related signaling pathways, macromolecule biosynthetic, DNA-templated, RNA biosynthetic, and metabolic process (p < 0.05). Kyoto Encyclopedia of Genes and Genomes pathway analysis showed that the DEGs were enriched in signaling pathways related to viral infectious diseases and cell adhesion molecules (p < 0.05). In conclusion, dietary inclusion of EP_7000 improves the breast muscle yield, which may be involved in improving the immunity and the cell differentiation of broilers, thus promoting the muscle growth of broilers. These findings could help understand the molecular mechanisms that enhance breast muscle yield by dietary supplementation of EP in broilers.
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Affiliation(s)
- Yue Zhao
- Department of Animal Science, College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China
| | | | - Yan Guo
- Department of Animal Science, College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China
| | - Sheng-Jian Qiu
- Department of Animal Science, College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China
| | - Rajesh Jha
- Department of Human Nutrition, Food and Animal Sciences, College of Tropical Agriculture and Human Resources, University of Hawaii at Manoa, Honolulu, HI, United States
| | - Wen-Chao Liu
- Department of Animal Science, College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China
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15
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He Y, Peng H, Zhang H, Liu Y, Sun H. Structural characteristics and immunopotentiation activity of two polysaccharides from the petal of Crocus sativus. Int J Biol Macromol 2021; 180:129-142. [PMID: 33676979 DOI: 10.1016/j.ijbiomac.2021.03.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Revised: 02/25/2021] [Accepted: 03/02/2021] [Indexed: 12/16/2022]
Abstract
The current experiments were designed to explore the structural features and immunopotentiation activity of two homogeneous polysaccharides PCSPA and PCSPB prepared from Crocus sativus petals using DEAE-Sephadex A-50 and Sephadex G200 column chromatography. The structures of PCSPA and PCSPB were systematically characterized using extensive chemical and spectroscopic methods including colorimetry, HPGPC-RID, GC-MS, Smith degradations, methylation, solvolytic desulfation, UV, FT-IR, NMR, SEM, and AFM. The average molecular weights of PCSPA and PCSPB were 1.98 × 106 and 2.53 × 106 Da, respectively. PCSPA consisted of Gal, Rha, Ara, and Xyl in the molar ratio of 16:5:7:3, while PCSPB were composed of Gal, Glc, Man, Rha, Ara, and Xyl with molar ratio of 16:2:7:19:15:16. Both polysaccharides contained sulfonic and acetyl groups. PCSPA and PCSPB significantly activated RAW264.7 cells by enhancing the phagocytic activity, up-regulating the expression of surface molecules, promoting the production and mRNA expression of cytokines and chemokines via MAPK and NF-κB pathway.
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Affiliation(s)
- Yanfei He
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Haoxuan Peng
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China; School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Huifang Zhang
- Medical College, Jinhua Polytechnic, Jinhua 321000, China
| | - Yaqin Liu
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Hongxiang Sun
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China.
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Li H, Xie W, Qiao X, Cui H, Yang X, Xue C. Structural characterization of arabinogalactan extracted from Ixeris chinensis (Thunb.) Nakai and its immunomodulatory effect on RAW264.7 macrophages. Int J Biol Macromol 2020; 143:977-983. [DOI: 10.1016/j.ijbiomac.2019.09.158] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Revised: 08/20/2019] [Accepted: 09/22/2019] [Indexed: 11/26/2022]
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Wang C, Du J, Chen X, Zhu Y, Sun H. Activation of RAW264.7 macrophages by active fraction of Albizia julibrissin saponin via Ca2+–ERK1/2–CREB–lncRNA pathways. Int Immunopharmacol 2019; 77:105955. [DOI: 10.1016/j.intimp.2019.105955] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 09/07/2019] [Accepted: 09/30/2019] [Indexed: 12/31/2022]
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Du J, Chen X, Ye Y, Sun H. A comparative study on the mechanisms of innate immune responses in mice induced by Alum and Actinidia eriantha polysaccharide. Int J Biol Macromol 2019; 156:1202-1216. [PMID: 31758993 DOI: 10.1016/j.ijbiomac.2019.11.158] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Revised: 11/06/2019] [Accepted: 11/19/2019] [Indexed: 12/20/2022]
Abstract
The innate immune mechanisms by which adjuvants enhance the potency and protection of vaccine remain at cellular level, but the molecular mechanisms, especially in vivo, are ill-identified. Actinidia eriantha polysaccharide (AEPS) is a potent adjuvant with dual Th1 and Th2 potentiating activity, while Alum elicits a strict Th2 response. The current experiments were designed to compare the innate immune responses in the peritoneal cavity of mice induced by two adjuvants and explore their molecular mechanisms using gene expression microarray including long noncoding RNAs (lncRNAs). AEPS induced the recruitment of monocytes, neutrophils and dendritic cells. However, Alum recruited neutrophils and eosinophils. AEPS and Alum specifically induced the differential expression of 546 and 922 genes in peritoneal cells, respectively. AEPS induced higher mRNA expression of CCL2, CCL3, CCL4, CCL7, CXCL2, CXCL3, CXCL5, CXCL10, IL-12β, and IL-23α in immune effector process, while Alum tended to Th17 response mRNAs such as IL-7A, IL-17F and IL-17RA. Furthermore, a robust adjuvant-specific expression pattern of lncRNAs was found in above mentioned biological processes, suggesting the involvement of lncRNAs in immune responses induced by AEPS and Alum. This study led to a better understanding of different molecular mechanisms of adjuvants and benefited the rational design of effective vaccines.
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Affiliation(s)
- Jing Du
- College of Animal Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Xiangfeng Chen
- College of Animal Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Yiping Ye
- Institute of Materia Medica, Zhejiang Academy of Medical Sciences, Hangzhou 310013, China
| | - Hongxiang Sun
- College of Animal Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China.
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19
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Chen X, Du J, Zhu Y, Zhang C, Sun H. Comprehensive analysis of lncRNA and mRNA expression profiles in macrophages activated by Actinidia eriantha polysaccharide. Int J Biol Macromol 2019; 136:980-993. [DOI: 10.1016/j.ijbiomac.2019.06.091] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 06/12/2019] [Accepted: 06/13/2019] [Indexed: 12/12/2022]
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