1
|
Jiao L, Jin H, Song Z, Wang Z, Yu L, Yu R, Wang D, Gao Q, Peng S, Sun H, Zhang T, Wang XF, Liu Z. The effect of lentinan on dexamethasone-induced immunosuppression in mice. Int J Biol Macromol 2024; 264:130621. [PMID: 38447834 DOI: 10.1016/j.ijbiomac.2024.130621] [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: 10/19/2023] [Revised: 02/28/2024] [Accepted: 03/02/2024] [Indexed: 03/08/2024]
Abstract
The immune system acts as a vital defense barrier against pathogenic invasions, and its stable operation is crucial for maintaining body health. Nevertheless, various natural or artificial factors can compromise the body's immune function, leading to immunosuppression, which may interfere with the efficacy of vaccination and increase the susceptibility of the body to disease-causing pathogens. In an effort to ensure successful vaccinations and improve overall physical well-being, the search for appropriate immune regulators to enhance immunity is of paramount importance. Lentinan (LNT) has a significant role in immune regulation and vaccine adjuvants. In the present study, we constructed an immunosuppressive model using dexamethasone (DEX) and demonstrated that LNT could significantly improved antibody levels in immunosuppressive mice and stimulated T-lymphocyte proliferation and differentiation in intestinal Peyer's patches. LNT also increased the production of secretory immunoglobulin A (sIgA) in the duodenal fluid, the number of goblet cells, and the proportion of mucin area. Moreover, LNT modulated the intestinal microbiota and increased the production of short-chain fatty acids. Additionally, LNT promoted the proliferation, differentiation, and pro-inflammatory cytokines production of DEX-treated splenic T lymphocytes in vitro. Thus, the present study highlights the potential of LNT in reversing immunosuppression and avoiding the failure of vaccination.
Collapse
Affiliation(s)
- Lina Jiao
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China; MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Haiyan Jin
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China; MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Zuchen Song
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China; MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Zheng Wang
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China; MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Lin Yu
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China; MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Ruihong Yu
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China; MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Deyun Wang
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China; MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Qian Gao
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Song Peng
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China; MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Haifeng Sun
- Key Laboratory of Bacteriology, Ministry of Agriculture, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Tao Zhang
- Beijing Key Laboratory of Traditional Chinese Veterinary Medicine, Beijing University of Agriculture, Beijing 102206, PR China
| | - Xue Fei Wang
- Key Laboratory of Chinese Veterinary Medicine, Henan Universty of Animal Husbandry and Economy, Zhengzhou 450046, PR China
| | - Zhenguang Liu
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China; MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China.
| |
Collapse
|
2
|
Liu H, Liu B, Zhang S, Fan M, Ji X, Zhang S, Wang Z, Qiao K. Lentinan protects Caenorhabditis elegans against fluopyram-induced toxicity through DAF-16 and SKN-1 pathways. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 265:115510. [PMID: 37742572 DOI: 10.1016/j.ecoenv.2023.115510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 09/17/2023] [Accepted: 09/20/2023] [Indexed: 09/26/2023]
Abstract
Fluopyram, a SDH inhibitor fungicide, is widely used in agriculture to control fungi and nematodes. However, fluopyram has been proved toxic that caused damage to organs through oxidative stress. The development of natural extracts that can reduce oxidative damage is a promising method. Lentinan is isolated from Lentinus edodes and has been verified its antioxidant activity. In this study, Caenorhabditis elegans was used to evaluate the protective effects of lentinan against fluopyram-induced toxicity and the possible mechanisms. Results showed that lentinan pretreatment notably increased the survival rate of N2 nematodes by 15.0 % and extended the lifespan by 91.5 %, compared with the fluopyram treatment. Lentinan pretreatment reverted the inhibition of the locomotion and reproduction of C. elegans under the fluopyram stress. In addition, lentinan pretreatment significantly decreased the contents of ROS and MDA in N2 nematodes. Moreover, pretreated with lentinan significantly recovered the decreased activities of CAT, SOD, GST and SDH induced by fluopyram. Lentinan pretreatment enhanced the mRNA levels of daf-16 and skn-1 and their downstream genes in the nematodes compared with the fluopyram group. In daf-16 and skn-1 mutants, the lifespan, ROS and related genes expression were not significantly changed in lentinan pretreatment. Pretreated with lentinan significantly enhanced the fluorescence intensity of SOD-3::GFP and GST-4::GFP, and promoted the nuclear translocation of DAF-16 and SKN-1 under the fluopyram stress. In summary, these findings indicated that lentinan protected C. elegans from fluopyram-induced toxicity via DAF-16 and SKN-1.
Collapse
Affiliation(s)
- Huimin Liu
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Bingjie Liu
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Siqi Zhang
- College of Food Science and Engineering, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Miao Fan
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Xiaoxue Ji
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Shouan Zhang
- Tropical Research and Education Center, Department of Plant Pathology, University of Florida, IFAS, Homestead, FL 33031, USA
| | - Zhongtang Wang
- Shandong Institute of Pomology, Tai'an, Shandong 271000, China.
| | - Kang Qiao
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, China.
| |
Collapse
|
3
|
You C, Xing J, Sun J, Zhang D, Yan Y, Dong Y. Anti-Inflammatory and Anti-Oxidant Impacts of Lentinan Combined with Probiotics in Ulcerative Colitis. Mol Biotechnol 2023:10.1007/s12033-023-00878-w. [PMID: 37819465 DOI: 10.1007/s12033-023-00878-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Accepted: 08/29/2023] [Indexed: 10/13/2023]
Abstract
Multi-methods have been developed to control ulcerative colitis. This research targeted to probe that lentinan combined with probiotics suppresses inflammation and oxidative stress responses in a dextran sulfate sodium (DSS)-induced colitis model. A mouse model of colitis was induced through oral administration with 2.5% DSS and treated with lentinan and probiotics independently or in combination. Then, bodyweight and Disease Activity Index (DAI) of mice were determined. Histopathology of colon tissue was analyzed, and apoptosis, inflammation and oxidative stress in the colon tissue of mice were observed. An HT-29 cell model of colitis was established by DSS stimulation and cultured with lentinan and/or probiotics to examine cell proliferation and apoptosis. The data discovered that after DSS induction of colitis, mice developed weight loss, increased DAI score, and shortened the length of colon. Also, severe histopathology of the colon, and increased apoptosis, inflammation and oxidative stress were recognizable. Lentinan could alleviate DSS-induced colitis, and the highest dose was the most significant. Probiotics could also relieve UC in mice, and mixed probiotics had a better therapeutic effect than single probiotics. Lentinan combined with probiotics could further alleviate DSS-induced colitis damage. In addition, lentinan combined with probiotics impaired apoptosis and enhanced proliferation of DSS-treated HT-29 cells. In a word, lentinan combined with probiotics reduces the inflammatory response and oxidative stress of UC.
Collapse
Affiliation(s)
- CuiYu You
- Department of Pharmacy, The First Affiliated Hospital of Xi'an Jiaotong University, No. 277 Yanta West Road, Xi'an City, 710061, Shaanxi Province, China
| | - JianFeng Xing
- School of Pharmacy, Xi'an Jiaotong University, Xi'an City, 710061, Shaanxi Province, China
| | - JinYao Sun
- Department of Pharmacy, The First Affiliated Hospital of Xi'an Jiaotong University, No. 277 Yanta West Road, Xi'an City, 710061, Shaanxi Province, China
| | - Di Zhang
- Department of Pharmacy, The First Affiliated Hospital of Xi'an Jiaotong University, No. 277 Yanta West Road, Xi'an City, 710061, Shaanxi Province, China
| | - Yan Yan
- Department of Pharmacy, The First Affiliated Hospital of Xi'an Jiaotong University, No. 277 Yanta West Road, Xi'an City, 710061, Shaanxi Province, China
| | - YaLin Dong
- Department of Pharmacy, The First Affiliated Hospital of Xi'an Jiaotong University, No. 277 Yanta West Road, Xi'an City, 710061, Shaanxi Province, China.
| |
Collapse
|
4
|
Kumar A, Paliwal R, Gulbake A. Lentinan: An unexplored novel biomaterial in drug and gene delivery applications. J Control Release 2023; 356:316-336. [PMID: 36863692 DOI: 10.1016/j.jconrel.2023.02.034] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 02/24/2023] [Accepted: 02/24/2023] [Indexed: 03/04/2023]
Abstract
Recently, lentinan (LNT) has been utilized for its diversified potential in research with an extended role from nutritional or medicinal applications to a novel biomaterial. LNT is a biocompatible, multifunctional polysaccharide employed as a pharmaceutical additive in engineering customized drug or gene carriers with an improved safety profile. Its triple helical structure containing hydrogen bonding offers more extraordinary binding sites for the attachments of dectin-1 receptors and polynucleotide sequences (poly(dA)). Hence, the diseases expressing dectin-1 receptors can be specifically targeted through so-designed LNT-engineered drug carriers. Gene delivery using poly(dA)-s-LNT complexes and composites has exhibited greater targetability and specificity. The achievement of such gene applications is assessed through the pH and redox potential of the extracellular cell membrane. The steric hindrance-acquiring behavior of LNT shows promise as a system stabilizer in drug carrier engineering. LNT shows viscoelastic gelling behavior temperature-dependently and therefore needs to explore more to meet topical disease applications. The immunomodulatory and vaccine adjuvant properties of LNT help in mitigating viral infections too. This review highlights the new role of LNT as a novel biomaterial, particularly in drug delivery and gene delivery applications. In addition, its importance in achieving various biomedical applications is also discussed.
Collapse
Affiliation(s)
- Ankaj Kumar
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research Guwahati, Assam 781101, India
| | - Rishi Paliwal
- Nanomedicine and Bioengineering Research Laboratory, Department of Pharmacy, Indira Gandhi National Tribal University, Amarkantak, MP 484887, India
| | - Arvind Gulbake
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research Guwahati, Assam 781101, India.
| |
Collapse
|
5
|
Du T, Fang Q, Zhang Z, Zhu C, Xu R, Chen G, Wang Y. Lentinan Protects against Nonalcoholic Fatty Liver Disease by Reducing Oxidative Stress and Apoptosis via the PPARα Pathway. Metabolites 2022; 12:metabo12010055. [PMID: 35050176 PMCID: PMC8780611 DOI: 10.3390/metabo12010055] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Revised: 01/02/2022] [Accepted: 01/05/2022] [Indexed: 02/07/2023] Open
Abstract
Lentinan (LNT), a type of polysaccharide derived from Lentinus edodes, has manifested protective effects during liver injury and hepatocellular carcinoma, but little is known about its effects on nonalcoholic fatty liver disease (NAFLD). This study aimed to investigate whether LNT can affect the progression of NAFLD and the associated mechanisms. C57BL/6J mice were fed a normal chow diet or a high-fat diet (HFD) with or without LNT (6 mg/kg/d). AML12 cells were exposed to 200 μM palmitate acid (PA) with or without LNT (5 μg/mL). After 21 wk of the high-fat diet, LNT significantly decreased plasma triglyceride levels and liver lipid accumulation, reduced excessive reactive oxygen species production, and subsequently attenuated hepatic apoptosis in NAFLD mice. These effects were associated with increased PPARα levels, a decreased Bax/Bcl-2 ratio, and enhancement of the antioxidant defense system in vivo. Similar effects were also observed in cultured cells. More importantly, these protective effects of LNT on palmitate acid-treated AML12 cells were almost abolished by PPARα knockdown. In conclusion, this study demonstrates that LNT may ameliorate hepatic steatosis and decrease oxidative stress and apoptosis by activating the PPARα pathway and is a potential drug target for NAFLD.
Collapse
Affiliation(s)
- Tingyi Du
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; (T.D.); (Q.F.); (Z.Z.); (C.Z.)
- Department of Radiology, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
| | - Qin Fang
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; (T.D.); (Q.F.); (Z.Z.); (C.Z.)
| | - Zhihao Zhang
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; (T.D.); (Q.F.); (Z.Z.); (C.Z.)
| | - Chuanmeng Zhu
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; (T.D.); (Q.F.); (Z.Z.); (C.Z.)
| | - Renfan Xu
- Department of Medical Ultrasound, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China;
| | - Guangzhi Chen
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; (T.D.); (Q.F.); (Z.Z.); (C.Z.)
- Correspondence: (G.C.); (Y.W.); Tel./Fax: +86-27-6937-8422 (G.C. & Y.W.)
| | - Yan Wang
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; (T.D.); (Q.F.); (Z.Z.); (C.Z.)
- Correspondence: (G.C.); (Y.W.); Tel./Fax: +86-27-6937-8422 (G.C. & Y.W.)
| |
Collapse
|
6
|
Wang X, Gong P, Liu M, wang M, wang S, guo Y, chang X, yang W, Chen X, Chen F. Hypoglycemic effect of a novel polysaccharide from Lentinus edodes on STZ-induced diabetic mice via metabolomics study and Nrf2/HO-1 pathways. Food Funct 2022; 13:3036-3049. [DOI: 10.1039/d1fo03487a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
With the increased worldwide prevalence of diabetes, more and more attentions are focused on the natural drug candidate who could treat diabetes with high efficacy but without undesired side effect....
Collapse
|
7
|
Wu T, Wang J, Zhang Y, Shao Y, Li X, Guo Y, Dong W, Wang L, Chen F, Han X. Lentinan protects against pancreatic β-cell failure in chronic ethanol consumption-induced diabetic mice via enhancing β-cell antioxidant capacity. J Cell Mol Med 2021; 25:6161-6173. [PMID: 33837638 PMCID: PMC8256364 DOI: 10.1111/jcmm.16529] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Revised: 03/09/2021] [Accepted: 03/24/2021] [Indexed: 12/17/2022] Open
Abstract
Chronic ethanol consumption is a well-established independent risk factor for type 2 diabetes mellitus (T2DM). Recently, increasing studies have confirmed that excessive heavy ethanol exerts direct harmful effect on pancreatic β-cell mass and function, which may be a mechanism of pancreatic β-cell failure in T2DM. In this study, we evaluated the effect of Lentinan (LNT), an active ingredient purified from the bodies of Lentinus edodes, on pancreatic β-cell apoptosis and dysfunction caused by ethanol and the possible mechanisms implicated. Functional studies reveal that LNT attenuates chronic ethanol consumption-induced impaired glucose metabolism in vivo. In addition, LNT ameliorates chronic ethanol consumption-induced β-cell dysfunction, which is characterized by reduced insulin synthesis, defected insulin secretion and increased cell apoptosis. Furthermore, mechanistic assays suggest that LNT enhances β-cell antioxidant capacity and ameliorates ethanol-induced oxidative stress by activating Nrf-2 antioxidant pathway. Our results demonstrated that LNT prevents ethanol-induced pancreatic β-cell dysfunction and apoptosis, and therefore may be a potential pharmacological agent for preventing pancreatic β-cell failure associated with T2DM and stress-induced diabetes.
Collapse
Affiliation(s)
- Tijun Wu
- Key Laboratory of Human Functional Genomics of Jiangsu ProvinceNanjing Medical UniversityNanjingChina
| | - Jiahui Wang
- Key Laboratory of Human Functional Genomics of Jiangsu ProvinceNanjing Medical UniversityNanjingChina
| | - Yaru Zhang
- Key Laboratory of Human Functional Genomics of Jiangsu ProvinceNanjing Medical UniversityNanjingChina
| | - Yixue Shao
- Key Laboratory of Human Functional Genomics of Jiangsu ProvinceNanjing Medical UniversityNanjingChina
| | - Xirui Li
- Key Laboratory of Human Functional Genomics of Jiangsu ProvinceNanjing Medical UniversityNanjingChina
| | - Yuqing Guo
- Key Laboratory of Human Functional Genomics of Jiangsu ProvinceNanjing Medical UniversityNanjingChina
| | - Wenyu Dong
- Key Laboratory of Oral Diseases of Jiangsu ProvinceNanjing Medical UniversityNanjingChina
- Institute of StomatologyNanjing Medical UniversityNanjingChina
| | - Lin Wang
- Key Laboratory of Oral Diseases of Jiangsu ProvinceNanjing Medical UniversityNanjingChina
- Institute of StomatologyNanjing Medical UniversityNanjingChina
| | - Fang Chen
- Key Laboratory of Human Functional Genomics of Jiangsu ProvinceNanjing Medical UniversityNanjingChina
| | - Xiao Han
- Key Laboratory of Human Functional Genomics of Jiangsu ProvinceNanjing Medical UniversityNanjingChina
| |
Collapse
|