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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] [What about the content of this article? (0)] [Affiliation(s)] [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.
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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.
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Jia Z, Chen L, Gu D, Li X, Wen T, Li W. Lentinan-loaded GelMA hydrogel accelerates diabetic wound healing through enhanced angiogenesis and immune microenvironment modulation. Int J Biol Macromol 2024; 264:130716. [PMID: 38458275 DOI: 10.1016/j.ijbiomac.2024.130716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 02/12/2024] [Accepted: 03/05/2024] [Indexed: 03/10/2024]
Abstract
Diabetic wound healing is a substantial clinical challenge, characterized by delayed angiogenesis and unresolved inflammation. Lentinan, a polysaccharide extracted from shiitake mushrooms, has the potential to regulate both macrophage polarization and angiogenesis, though this aspect remains inadequately explored. To facilitate lentinan's clinical utility, we have developed a GelMA hydrogel encapsulated with lentinan (10 μM), offering a controlled release mechanism for sustained lentinan delivery at the wound site. Application of the lentinan-encapsulated delivery system topically significantly expedites wound closure compared to control groups. Furthermore, histological examination demonstrates enhanced neovascularization and reduced inflammation in lentinan-treated wounds, as evidenced by increased M2 macrophage infiltration. Moreover, our results indicated that lentinan-induced AMPK activation promotes DAF16 expression, enhancing the resistance of macrophages and HUVECs to oxidative stress in high-glucose environments, thereby promoting M2 macrophage polarization and angiogenesis. All these findings underscore lentinan's capacity to modulate macrophage polarization and angiogenesis via the AMPK/DAF16 pathway, ultimately facilitating the healing of diabetic wounds.
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Affiliation(s)
- Zhiwei Jia
- Department of Orthopedics, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 101100, China.
| | - Lei Chen
- Department of Sports Medicine, Fourth Medical Center of PLA General Hospital, Beijing 100048, China
| | - Dongqiang Gu
- Department of Sports Medicine, Fourth Medical Center of PLA General Hospital, Beijing 100048, China
| | - Xingxuan Li
- Department of Orthopedics, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 101100, China
| | - Tianlin Wen
- Department of Orthopedics, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 101100, China
| | - Wei Li
- Department of Sports Medicine, Fourth Medical Center of PLA General Hospital, Beijing 100048, China.
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Zhou G, Liu H, Yuan Y, Wang Q, Wang L, Wu J. Lentinan progress in inflammatory diseases and tumor diseases. Eur J Med Res 2024; 29:8. [PMID: 38172925 PMCID: PMC10763102 DOI: 10.1186/s40001-023-01585-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Accepted: 12/10/2023] [Indexed: 01/05/2024] Open
Abstract
Shiitake mushrooms are a fungal food that has been recorded in Chinese medicine to nourish the blood and qi. Lentinan (lLNT) is an active substance extracted from shiitake mushrooms with powerful antioxidant, anti-inflammatory, anti-tumor functions. Inflammatory diseases and cancers are the leading causes of death worldwide, posing a serious threat to human life and health and posing enormous challenges to global health systems. There is still a lack of effective treatments for inflammatory diseases and cancer. LNT has been approved as an adjunct to chemotherapy in China and Japan. Studies have shown that LNT plays an important role in the treatment of inflammatory diseases as well as oncological diseases. Moreover, clinical experiments have confirmed that LNT combined with chemotherapy drugs has a significant effect in improving the prognosis of patients, enhancing their immune function and reducing the side effects of chemotherapy in lung cancer, colorectal cancer and gastric cancer. However, the relevant mechanism of action of the LNT signaling pathway in inflammatory diseases and cancer. Therefore, this article reviews the mechanism and clinical research of LNT in inflammatory diseases and tumor diseases in recent years.
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Affiliation(s)
- Guangda Zhou
- Neck-Shoulder and Lumbocrural Pain Hospital of Shandong First Medical University, Jinan, 250062, China
| | - Haiyan Liu
- Department of Ultrasound, The Affiliated Taian City Central Hospital of Qingdao University, Taian, 271000, China
| | - Ying Yuan
- Department of Neurology, Xingtai Third Hospital, Xingtai, 054000, China
| | - Qian Wang
- Department of Central Laboratory, The Affiliated Taian City Central Hospital of Qingdao University, Taian, 271000, China.
| | - Lanping Wang
- Department of Surgery, The Second Affiliated Hospital of Shandong First Medical University, Taian, 271000, China.
| | - Jianghua Wu
- School of Nursing, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, 271000, China.
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Zhou X, Wang H, Zhang J, Guan Y, Zhang Y. Single-injection subunit vaccine for rabies prevention using lentinan as adjuvant. Int J Biol Macromol 2024; 254:128118. [PMID: 37977452 DOI: 10.1016/j.ijbiomac.2023.128118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Revised: 11/11/2023] [Accepted: 11/14/2023] [Indexed: 11/19/2023]
Abstract
Current rabies vaccines require 5 doses to provide full protection from the deadly virus, which significantly reduce the compliance of recipients. To minimize the number of immunizations herein single injection vaccines were developed. First a single injection vaccine was designed using rabies virus glycoprotein (G protein) as antigen. A time-controlled release system which uses dynamic layer-by-layer films as erodible coating was employed to accomplish multiply pulsatile releases of G protein. The single-injection vaccine elicits potent humoral and cellular immune responses comparable to the corresponding multi-dose ordinary vaccines because of their similar release pattern of G protein. To further improve its performance, a second single injection vaccine, in which lentinan was added as adjuvant, was designed. This single-injection vaccine again elicits humoral and cellular immune responses comparable to the corresponding multi-dose ordinary vaccines because of their similar release pattern of antigen and adjuvant. In addition, the second single-injection vaccine elicits higher level immune response and provides higher efficiency on virus inhibition than the first one because lentinan can booster immune response.
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Affiliation(s)
- Xiaoyong Zhou
- Key Laboratory of Functional Polymer Materials, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Haozheng Wang
- Key Laboratory of Functional Polymer Materials, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Jianchen Zhang
- Key Laboratory of Functional Polymer Materials, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Ying Guan
- Key Laboratory of Functional Polymer Materials, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China.
| | - Yongjun Zhang
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Pharmaceutical Sciences, Tiangong University, Tianjin 300387, China.
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Jiao L, Wang Z, Song Z, Zhang T, Yu L, Yu R, Gao Q, Peng S, Jin H, Wang D, Liu Z. Lentinan-functionalized graphene oxide hydrogel as a sustained antigen delivery system for vaccines. Int J Biol Macromol 2023; 253:126629. [PMID: 37657564 DOI: 10.1016/j.ijbiomac.2023.126629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 08/28/2023] [Accepted: 08/29/2023] [Indexed: 09/03/2023]
Abstract
Hydrogel has been proven to have the ability to deliver antigens continuously to achieve slow vaccine delivery, which makes it a promising candidate for an adjuvant delivery platform. Meanwhile, graphene oxide (GO) has garnered significant attention due to its good biosafety, excellent surface area and easy modification. However, GO exists as weak colloidal particles and poses challenges in self-assembling into a hydrogel structure. Here, we propose an innovative strategy involving self-assembling lentinan-functionalized graphene oxide hydrogel ((LNT-GO Gel) by simply mixing lentinan (LNT)-functionalized GO with polyethylene imide (PEI), which can simultaneously encapsulate antigens, achieve long-lasting release of antigens and generate excellent adjuvant activity. The results indicated that the LNT-GO Gel can control the release of OVA at the injection site and confer targeted delivering capacity to lymph nodes. And the date demonstrates that LNT-GO Gel displays favorable safety and biodegradability in vivo. Moreover, LNT-GO Gel can enhance the activation and maturation of dendritic cells (DCs) in lymph node, induce stronger OVA-specific antibody response, and promote spleen T lymphocyte differentiation, which underscores that LNT-GO Gel has ability to generate stronger antigen-specific humoral and cellular immune responses. Collectively, these results demonstrate the adjuvant potential of the lentinan-functionalized graphene oxide hydrogel (LNT-GO Gel) for subunit vaccine.
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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
| | - 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
| | - 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
| | - Tao Zhang
- Beijing Key Laboratory of Traditional Chinese Veterinary Medicine, Beijing University of Agriculture, Beijing 102206, 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
| | - 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
| | - 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
| | - 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
| | - 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.
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Zhang X, Hong L, Zhu BJ, Yuan Y, Li SP, Zhao J. Atomic force microscopy based conformation and immunological activity of Lentinan injections. Int J Biol Macromol 2023; 253:126901. [PMID: 37716659 DOI: 10.1016/j.ijbiomac.2023.126901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 08/03/2023] [Accepted: 09/12/2023] [Indexed: 09/18/2023]
Abstract
The purpose of this study was to investigate the morphological characteristics of different brands of lentinan injections produced in China using atomic force microscopy (AFM) and their relationship to immunological activity. Based on AFM imaging, chain height could be used as characterizing the conformation of lentinan, and the heights of 95 % confidence interval for triple, double and single helix were 1.746 ± 0.039 nm, 1.564 ± 0.037 nm and 1.243 ± 0.031 nm, respectively, which were calculated using self-developed MATLAB protocol. AFM characters and their immunological activity of different lentinan injection were compared. In detail, two parameters, triple helix ratio 51.3 % and adhesion force 800 pN, of Jinling (JL) lentinan injection are much higher than samples of other four manufacturers. In addition, immunological activity of JL lentinan injection is also significantly higher than Yineng's. High performance size exclusion chromatography (HPSEC) profiles of different lentinans were also compared, and the data were in accordance with those from AFM. Molecular weight accumulation curves could be used for evaluation of quality consistence of different batches of lentinan from same manufacturer and/or different manufacturers. The results showed that quality consistence of lentinan from different manufactures is poor, which should be greatly improved.
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Affiliation(s)
- Xuan Zhang
- Joint Laboratory of Chinese Herbal Glycoengineering and Testing Technology, University of Macau & National Glycoengineering Research Center, China; Macao Centre for Testing of Chinese Medicine, University of Macau, China; State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, China
| | - Liang Hong
- Joint Laboratory of Chinese Herbal Glycoengineering and Testing Technology, University of Macau & National Glycoengineering Research Center, China; Macao Centre for Testing of Chinese Medicine, University of Macau, China; State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, China
| | - Bao-Jie Zhu
- Joint Laboratory of Chinese Herbal Glycoengineering and Testing Technology, University of Macau & National Glycoengineering Research Center, China; Macao Centre for Testing of Chinese Medicine, University of Macau, China; State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, China
| | - Yaozu Yuan
- Jiangsu Institute for Food and Drug Control, Nanjing, China.
| | - Shao-Ping Li
- Joint Laboratory of Chinese Herbal Glycoengineering and Testing Technology, University of Macau & National Glycoengineering Research Center, China; Macao Centre for Testing of Chinese Medicine, University of Macau, China; State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, China.
| | - Jing Zhao
- Joint Laboratory of Chinese Herbal Glycoengineering and Testing Technology, University of Macau & National Glycoengineering Research Center, China; Macao Centre for Testing of Chinese Medicine, University of Macau, China; State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, China.
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Liu S, Yan Z, Peng Y, Liu Y, Li Y, Xu D, Gong Y, Cui Z, Wu Y, Zhang Y, Wang D, Pan W, Yang X. Lentinan has a beneficial effect on cognitive deficits induced by chronic Toxoplasma gondii infection in mice. Parasit Vectors 2023; 16:454. [PMID: 38093309 PMCID: PMC10717010 DOI: 10.1186/s13071-023-06023-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Accepted: 10/19/2023] [Indexed: 12/17/2023] Open
Abstract
BACKGROUND Toxoplasma gondii (T. gondii) is increasingly considered a risk factor for neurodegenerative diseases. However, there is only limited information on the development of drugs for T. gondii infection. Lentinan from Lentinula edodes is a bioactive ingredient with the potential to enhance anti-infective immunity. The present study aimed to investigate the neuroprotective effect of lentinan on T. gondii-associated cognitive deficits in mice. METHODS A chronic T. gondii infection mouse model was established by administering 10 cysts of T. gondii by gavage. Lentinan was intraperitoneally administered 2 weeks before infection. Behavioral tests, RNA sequencing, immunofluorescence, transmission electron microscopy and Golgi-Cox staining were performed to assess the effect of lentinan on cognitive deficits and neuropathology in vivo. In vitro, the direct and indirect effects of lentinan on the proliferation of T. gondii tachyzoites were evaluated in the absence and presence of BV-2 cells, respectively. RESULTS Lentinan prevented T. gondii-induced cognitive deficits and altered the transcriptome profile of genes related to neuroinflammation, microglial activation, synaptic function, neural development and cognitive behavior in the hippocampus of infected mice. Moreover, lentinan reduced the infection-induced accumulation of microglia and downregulated the mRNA expression of proinflammatory cytokines. In addition, the neurite and synaptic ultrastructural damage in the hippocampal CA1 region due to infection was ameliorated by lentinan administration. Lentinan decreased the cyst burden in the brains of infected mice, which was correlated with behavioral performance. In line with this finding, lentinan could significantly inhibit the proliferation of T. gondii tachyzoites in the microglial cell line BV2, although lentinan had no direct inhibitory effect on parasite growth. CONCLUSIONS Lentinan prevents cognitive deficits via the improvement of neurite impairment and synaptic loss induced by T. gondii infection, which may be associated with decreased cyst burden in the brain. Overall, our findings indicate that lentinan can ameliorate T. gondii-related neurodegenerative diseases.
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Affiliation(s)
- Shuxi Liu
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogen Biology and Immunology, Jiangsu International Laboratory of Immunity and Metabolism, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, China
- The First Clinical Medical College, Xuzhou Medical University, Xuzhou, Jiangsu, China
- National Experimental Demonstration Center for Basic Medicine Education, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Ziyi Yan
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogen Biology and Immunology, Jiangsu International Laboratory of Immunity and Metabolism, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, China
- The First Clinical Medical College, Xuzhou Medical University, Xuzhou, Jiangsu, China
- National Experimental Demonstration Center for Basic Medicine Education, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Yuan Peng
- Department of Pharmacy, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
| | - Yunqiu Liu
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogen Biology and Immunology, Jiangsu International Laboratory of Immunity and Metabolism, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, China
| | - Yiling Li
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogen Biology and Immunology, Jiangsu International Laboratory of Immunity and Metabolism, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, China
- The First Clinical Medical College, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Daxiang Xu
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogen Biology and Immunology, Jiangsu International Laboratory of Immunity and Metabolism, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, China
| | - Yuying Gong
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogen Biology and Immunology, Jiangsu International Laboratory of Immunity and Metabolism, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, China
| | - Zeyu Cui
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogen Biology and Immunology, Jiangsu International Laboratory of Immunity and Metabolism, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, China
- The Second Clinical Medical College, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, China
| | - Yongshui Wu
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogen Biology and Immunology, Jiangsu International Laboratory of Immunity and Metabolism, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, China
- The First Clinical Medical College, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Yumei Zhang
- Department of Pathogenic Biology, Binzhou Medical University, Binzhou, 256603, Shandong, China
| | - Dahui Wang
- Liangshan College (Li Shui) China, Lishui University, Lishui, 323000, Zhejiang, China.
| | - Wei Pan
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogen Biology and Immunology, Jiangsu International Laboratory of Immunity and Metabolism, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, China.
- National Experimental Demonstration Center for Basic Medicine Education, Xuzhou Medical University, Xuzhou, Jiangsu, China.
| | - Xiaoying Yang
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogen Biology and Immunology, Jiangsu International Laboratory of Immunity and Metabolism, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, China.
- National Experimental Demonstration Center for Basic Medicine Education, Xuzhou Medical University, Xuzhou, Jiangsu, China.
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8
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Hu S, Luo J, Guo P, Du T, Liu X, He M, Li J, Ma T, Liu B, Huang M, Fang Q, Wang Y. Lentinan alleviates diabetic cardiomyopathy by suppressing CAV1/SDHA-regulated mitochondrial dysfunction. Biomed Pharmacother 2023; 167:115645. [PMID: 37804808 DOI: 10.1016/j.biopha.2023.115645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 09/30/2023] [Accepted: 10/03/2023] [Indexed: 10/09/2023] Open
Abstract
Diabetic cardiomyopathy (DCM), characterized by mitochondrial dysfunction and impaired energetics as contributing factors, significantly contributes to high mortality in patients with diabetes. Targeting key proteins involved in mitochondrial dysfunction might offer new therapeutic possibilities for DCM. Lentinan (LNT), a β-(1,3)-glucan polysaccharide obtained from lentinus edodes, has demonstrated biological activity in modulating metabolic syndrome. In this study, the authors investigate LNT's pharmacological effects on and mechanisms against DCM. The results demonstrate that administering LNT to db/db mice reduces cardiomyocyte apoptosis and mitochondrial dysfunction, thereby preventing DCM. Notably, these effects are fully negated by Caveolin-1 (CAV1) overexpression both in vivo and in vitro. Further studies and bioinformatics analysis uncovered that CAV1 bound with Succinate dehydrogenase subunit A (SDHA), triggering the following ubiquitination and degradation of SDHA, which leads to mitochondrial dysfunction and mitochondria-derived apoptosis under PA condition. Silencing CAV1 leads to reduced apoptosis and improved mitochondrial function, which is blocked by SDHA knockdown. In conclusion, CAV1 directly interacts with SDHA to promote ubiquitination and proteasomal degradation, resulting in mitochondrial dysfunction and mitochondria-derived apoptosis, which was depressed by LNT administration. Therefore, LNT may be a potential pharmacological agent in preventing DCM, and targeting the CAV1/SDHA pathway may be a promising therapeutic approach for DCM.
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Affiliation(s)
- Shuiqing Hu
- Division of Cardiology and Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Wuhan 430030, China
| | - Jinlan Luo
- Department of Geriatric Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Ping Guo
- Division of Cardiology and Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Wuhan 430030, China
| | - Tingyi Du
- Department of Radiology, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
| | - Xiaohui Liu
- Division of Cardiology and Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Wuhan 430030, China
| | - Miaomiao He
- Division of Cardiology and Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Wuhan 430030, China
| | - Jie Li
- Division of Cardiology and Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Wuhan 430030, China
| | - Tingqiong Ma
- Division of Cardiology and Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Wuhan 430030, China
| | - Bo Liu
- Division of Cardiology and Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Wuhan 430030, China
| | - Man Huang
- Division of Cardiology and Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Wuhan 430030, China
| | - Qin Fang
- Division of Cardiology and Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Wuhan 430030, China.
| | - Yan Wang
- Division of Cardiology and Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Wuhan 430030, China.
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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. Ecotoxicol Environ Saf 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] [What about the content of this article? (0)] [Affiliation(s)] [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.
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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.
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10
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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] [What about the content of this article? (0)] [Affiliation(s)] [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.
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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.
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11
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Zhang Y, Tang W, Zheng Z, Nie G, Zhan Y, Mu X, Liu Y, Wang K. Metabolic degradation of polysaccharides from Lentinus edodes by Kupffer cells via the Dectin-1/Syk signaling pathway. Carbohydr Polym 2023; 317:121108. [PMID: 37364942 DOI: 10.1016/j.carbpol.2023.121108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 06/05/2023] [Accepted: 06/08/2023] [Indexed: 06/28/2023]
Abstract
It had been shown that lentinan (LNT) was mainly distributed in the liver after intravenous administration. The study aimed to investigate the integrated metabolic processes and mechanisms of LNT in the liver, as these have not been thoroughly explored. In current work, 5-([4,6-dichlorotriazin-2-yl] amino) fluorescein and cyanine 7 were used to label LNT for tracking its metabolic behavior and mechanisms. Near-infrared imaging demonstrated that LNT was captured mainly by the liver. Kupffer cell (KC) depletion reduced LNT liver localization and degradation in BALB/c mice. Moreover, experiments with Dectin-1 siRNA and Dectin-1/Syk signaling pathway inhibitors showed that LNT was mainly taken up by KCs via the Dectin-1/Syk pathway and promoted lysosomal maturation in KCs via this same pathway, which in turn promoted LNT degradation. These empirical findings offer novel insights into the metabolism of LNT in vivo and in vitro, which will facilitate the further application of LNT and other β-glucans.
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Affiliation(s)
- Yu Zhang
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 430030 Wuhan, China; Hubei Province Clinical Research Center for Precision Medicine for Critical Illness, 430030 Wuhan, China
| | - Wenqi Tang
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 430030 Wuhan, China
| | - Ziming Zheng
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 430030 Wuhan, China; Hubei Province Clinical Research Center for Precision Medicine for Critical Illness, 430030 Wuhan, China
| | - Gang Nie
- Department of Pharmacy, Wuhan Children's Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science and Technology, 430019 Wuhan, China
| | - Yuxue Zhan
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 430030 Wuhan, China
| | - Xu Mu
- Hubei Key Laboratory of Nature Medicinal Chemistry and Resource Evaluation, Tongji Medical College of Pharmacy, Huazhong University of Science and Technology, 430030 Wuhan, China
| | - Yuxuan Liu
- Hubei Key Laboratory of Nature Medicinal Chemistry and Resource Evaluation, Tongji Medical College of Pharmacy, Huazhong University of Science and Technology, 430030 Wuhan, China
| | - Kaiping Wang
- Hubei Key Laboratory of Nature Medicinal Chemistry and Resource Evaluation, Tongji Medical College of Pharmacy, Huazhong University of Science and Technology, 430030 Wuhan, China.
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12
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Minato KI, Oura K, Mizuno M. The inhibitory effect of oral administration of lentinan on DSS-induced inflammation is exerted by the migration of T cells activated in the ileum to the colon. Eur J Pharmacol 2023; 946:175631. [PMID: 36863554 DOI: 10.1016/j.ejphar.2023.175631] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 02/02/2023] [Accepted: 02/27/2023] [Indexed: 03/04/2023]
Abstract
Oral administration of lentinan ameliorated dextran sulfate sodium (DSS)-induced colitis through Dectin-1 receptor on intestinal epithelial cells. However, it is unclear where lentinan affects in the intestine to prevent the inflammation. We found that the administration of lentinan has induced migration of CD4+ cells from the ileum to the colon by using Kikume Green-Red (KikGR) mice in this study. This result suggests that the oral lentinan treatment could accelerate the migration of Th cells in lymphocyte from ileum into the colon during lentinan intake. Then, C57BL/6 mice were administered 2% DSS to induce colitis. The mice were administered lentinan daily via oral or rectal route before DSS administration. Its rectal administration also suppressed DSS-induced colitis, but its suppressive effects were lower compared to when orally administered, indicating that the biological responses to lentinan in the small intestine contributed to the anti-inflammatory effects. In normal mice (without DSS treatment), the expression of Il12b was significantly increased in the ileum by the oral administration of lentinan, but not by rectal one. On the other hand, no change was observed in the colon by either administration method. In addition, Tbx21 was significantly increased in the ileum. These suggested that IL-12 was increased in the ileum and Th1 cells differentiated in dependence on it. Therefore, Th1 predominant condition in the ileum could influence immunity in the colon and improve the colitis.
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Affiliation(s)
- Ken-Ichiro Minato
- Department of Applied Biological Chemistry, Graduate School of Agriculture, Meijo University, 1-501, Shiogamaguchi, Nagoya, 468-8502, Japan
| | - Keigo Oura
- Department of Agrobioscience, Graduate School of Agricultural Science, Kobe University, Kobe, 657-8501, Japan
| | - Masashi Mizuno
- Department of Agrobioscience, Graduate School of Agricultural Science, Kobe University, Kobe, 657-8501, Japan.
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Cui H, Xu R, Hu W, Li C, Abdel-Samie MA, Lin L. Effect of soy protein isolate nanoparticles loaded with litsea cubeba essential oil on performance of lentinan edible films. Int J Biol Macromol 2023:124686. [PMID: 37146850 DOI: 10.1016/j.ijbiomac.2023.124686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 04/16/2023] [Accepted: 04/28/2023] [Indexed: 05/07/2023]
Abstract
Environmental issues caused by plastic packaging materials have gotten increasingly severe, and substantial research has been conducted on environmentally friendly active packaging materials. In this study, the Litsea cubeba essential oil loaded soy protein isolate nanoparticles (LSNPs) with appropriate particle size, high storage stability and salt solution stability were fabricated. The LSNPs with the highest encapsulation efficiency of 81.76 % were added into the lentinan edible film. The microstructures of the films were observed by scanning electron microscopy. The physical properties of the films were measured. The results show that the lentinan film with LSNPs in the volume ratio of 4:1 (LF-4) had the highest elongation at break of 196 %, the lowest oxygen permeability of 12 meq/kg, and good tensile strength, water vapor barrier property, antibacterial property, oxidation resistance and thermal stability. The study suggested that LF-4 film could inhibit the growth of bacteria and delay the oxidation of lipid and protein on beef surface for 7 d.
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Affiliation(s)
- Haiying Cui
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Rui Xu
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Wei Hu
- State Key Laboratory of Utilization of Woody Oil Resource, Hunan Academy of Forestry, Changsha 410007, China
| | - Changzhu Li
- State Key Laboratory of Utilization of Woody Oil Resource, Hunan Academy of Forestry, Changsha 410007, China
| | - Mohamed A Abdel-Samie
- Department of Food and Dairy Sciences and Technology, Faculty of Environmental Agricultural Sciences, Arish University, El-Arish 45511, Egypt
| | - Lin Lin
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China; State Key Laboratory of Utilization of Woody Oil Resource, Hunan Academy of Forestry, Changsha 410007, China.
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14
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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] [What about the content of this article? (0)] [Affiliation(s)] [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.
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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.
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Jafari M, Boskabaday MH, Rezaee SA, Rezaeian S, Behrouz S, Ramezannejad R, Pourianfar HR. Lentinan and β-glucan extract from shiitake mushroom, Lentinula edodes, alleviate acute LPS-induced hematological changes in mice. Iran J Basic Med Sci 2023; 26:836-842. [PMID: 37396940 PMCID: PMC10311971 DOI: 10.22038/ijbms.2023.67669.14820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Figures] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Accepted: 03/18/2023] [Indexed: 07/04/2023]
Abstract
Objectives Immunomodulatory activity of β-glucans of shiitake mushroom (Lentinula edodes) has been known. We investigated whether β-glucans from L. edodes would attenuate the acute effects of lipopolysaccharides (LPS) on peripheral hematological parameters in mice. Materials and Methods An in-house β-glucans extract (BG) prepared from fruiting bodies of shiitake mushroom L. edodes was chemically measured and characterized using spectrophotometry and HPLC. Male BALB/c mice directly inhaled aerosolized LPS of 3 mg/ml and were treated with BG or commercial β-glucan (known as lentinan; LNT) (10 mg/kg bw) at 1 hr before or 6 hr after LPS inhalation. The blood samples were collected by cardiac puncture from euthanized mice at 16 hr post-treatment. Results The results showed a significant reduction in levels of blood parameters, including red blood cells (RBC), hemoglobin (HGB), hematocrit (HCT), and platelets (PLT); and a significant increase in blood lymphocyte counts in LPS-treated mice as compared with the control mice (P≤0.05). Total white blood cells, neutrophils, and monocyte counts did not show any significant difference among the groups. Treatment of LPS-challenged mice with LNT or BG significantly increased the levels of RBC, HGB, HCT, and PLT; and reduced blood lymphocyte counts as compared with LPS-treated mice (P≤0.05). Conclusion These findings suggest that β-glucans from L. edodes might be effective in attenuating the effects of inhaled LPS on peripheral blood parameters. Thus, these findings might be useful in acute inflammatory diseases particularly pulmonary infectious diseases in which the hematological parameters would be affected.
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Affiliation(s)
- Mojdeh Jafari
- School of Medicine, Mashhad University of Medical Sciences, Inflammation and Inflammatory Diseases Research Centre, Mashhad, Iran
| | | | - Seyed Abdolrahim Rezaee
- School of Medicine, Mashhad University of Medical Sciences, Inflammation and Inflammatory Diseases Research Centre, Mashhad, Iran
| | - Sharareh Rezaeian
- Industrial Fungi Biotechnology Research Department, Research Institute for Industrial Biotechnology, Academic Center for Education, Culture and Research (ACECR)- Khorasan Razavi Branch, Mashhad, Iran
| | - Sepideh Behrouz
- Department of Physiology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Rezvan Ramezannejad
- Industrial Fungi Biotechnology Research Department, Research Institute for Industrial Biotechnology, Academic Center for Education, Culture and Research (ACECR)- Khorasan Razavi Branch, Mashhad, Iran
| | - Hamid Reza Pourianfar
- Industrial Fungi Biotechnology Research Department, Research Institute for Industrial Biotechnology, Academic Center for Education, Culture and Research (ACECR)- Khorasan Razavi Branch, Mashhad, Iran
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Meng M, Huo R, Wang Y, Ma N, Shi X, Shen X, Chang G. Lentinan inhibits oxidative stress and alleviates LPS-induced inflammation and apoptosis of BMECs by activating the Nrf2 signaling pathway. Int J Biol Macromol 2022; 222:2375-2391. [PMID: 36243161 DOI: 10.1016/j.ijbiomac.2022.10.024] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 09/22/2022] [Accepted: 10/04/2022] [Indexed: 11/05/2022]
Abstract
Lentinan (LNT) has been reported to have a wide range of functions, including anti-inflammatory, antioxidant and anticancer properties. LNT may provide a protective effect in dairy cow mastitis. In this study, we investigated the effect of LNT on lipopolysaccharide (LPS)-induced injury of bovine mammary epithelial cells (BMECs) and the possible mechanism. First, we treated BMECs with different concentrations of LPS to study the effects of LPS on oxidative stress and inflammation in BMECs. Then, we examined the effects of LNT by dividing the cells into seven groups: the control group (CON), LPS treatment group (LPS), Acetyl-l-cysteine (NAC) pretreatment group (NAC + LPS), LNT pretreatment group (LNT + LPS), ML385 and LNT pretreatment group (ML385 + LNT + LPS), LNT treatment group (LNT) and NAC treatment group (NAC). The results showed that LPS-triggered intracellular ROS production and the downregulation of Nrf-2 and HO-1 in BMECs were blocked by LNT pretreatment. LNT inhibited the expression of inflammatory genes and proteins by inhibiting of NF-κB and MAPK. In addition, LNT attenuated LPS induced-apoptosis in BMECs. However, ML385 reversed the protective effect of LNT. Taken together, LNT can be used as a natural protective agent against LPS-triggered BMECs damage through its anti-inflammatory, antioxidant and antiapoptotic effects through modulation of the Nrf2 pathway.
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Affiliation(s)
- Meijuan Meng
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, Jiangsu Province, China
| | - Ran Huo
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, Jiangsu Province, China
| | - Yan Wang
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, Jiangsu Province, China
| | - Nana Ma
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, Jiangsu Province, China
| | - Xiaoli Shi
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, Jiangsu Province, China
| | - Xiangzhen Shen
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, Jiangsu Province, China
| | - Guangjun Chang
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, Jiangsu Province, China; Animal Disease Prevention and Control Center of Ningxia Hui Autonomous Region, Yinchuan 750001, Ningxia, China.
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Xu H, Qi Z, Zhao Q, Xue J, Zhu J, He Y, Liu G, Qin S. Lentinan enhances the antitumor effects of Delta-like 1 via neutrophils. BMC Cancer 2022; 22:918. [PMID: 36008793 DOI: 10.1186/s12885-022-10011-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Accepted: 08/18/2022] [Indexed: 12/03/2022] Open
Abstract
Background Selective activation of Delta-like 1 (DLL1)-Notch signaling is a new approach to activate CD8+ T cell and suppress tumor growth, while the efficacy remains modest. Lentinan (LNT) is a clinically used immunomodulation agent. Thus, we hypothesized that LNT could improve the efficacy of DLL1. Methods The effects of LNT combined with DLL1 on tumor growth were evaluated by growth curve and tumor weight in EO771 breast and LAP0297 lung tumor models. The impacts on immune cells and gene expression in tumor tissues were determined by flow cytometry, qPCR. Neutrophil depletion was used to investigate the mechanism of the combination therapy on tumor growth. The data sets were compared using unpaired student’s t-test or ordinary one-way ANOVA. Results LNT treatments additively improved the antitumor effects of DLL1 in EO771 breast tumor growth. Remarkably, LNT treatments synergistically enhanced the suppression of DLL1 on LAP0297 lung tumor growth, resulting in tumor regression. Mechanically, the combination of LNT and DLL1 interventions not only promoted the accumulation and activation of CD8+ T cells, but also increased intratumoral CD45+CD11b+Ly6G+ neutrophils. Reduced neutrophils by anti-Gr1 antibody administrations reversed the improved antitumor effects by LNT treatments in LAP0297 lung tumor. These results suggest that LNT treatments improve the inhibition of DLL1 on tumor growth via neutrophils. Conclusions Our findings indicates that LNT and DLL1 may induce synergistical antitumor immunity via simultaneous modulating lymphoid and myeloid cell populations regardless of the type of tumor, providing a potential new strategy to potentiate cancer immunotherapy. Supplementary Information The online version contains supplementary material available at 10.1186/s12885-022-10011-w.
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Ma Z, Dong L, Zhang B, Liang B, Wang L, Ma G, Wang L. Lentinan stabilized bimetallic PdPt 3 dendritic nanoparticles with enhanced oxidase-like property for L-cysteine detection. Int J Biol Macromol 2022; 216:779-788. [PMID: 35902021 DOI: 10.1016/j.ijbiomac.2022.07.143] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 07/08/2022] [Accepted: 07/18/2022] [Indexed: 12/25/2022]
Abstract
The development of nanozymes with enhanced catalytic activity has been drawing great interest. Lentinan with special structure may be used to prepare bimetallic nanomaterials to enhance their catalytic activity. Herein, lentinan stabilized PdPt3 dendritic nanoparticles (PdPt3-LNT NDs) were prepared through reduction of Na2PdCl4 and K2PtCl4 with a molar ratio of 1:3 using lentinan as a biological template. PdPt3-LNT NDs had dendritic shape with size of 10.76 ± 1.82 nm. PdPt3-LNT NDs had the hydrodynamic size about 25.7 nm and the zeta potential between -1.4 mV and - 4.9 mV at different pH. Furthermore, PdPt3-LNT NDs catalyzed 3,3',5,5'-tetramethylbenzidine (TMB) to produce oxidized TMB, suggesting their oxidase-like property. The catalytic activity of PdPt3-LNT NDs was the highest when pH was 4 and the temperature was 40 °C. The catalytic mechanism was the generation of ·O2- and 1O2 from O2 catalyzed by PdPt3-LNT NDs. More importantly, L-cysteine detection method was set up based on the oxidase-like property of PdPt3-LNT NDs. This method had wide linear range for 0-200 μM and low detection limit for 3.099 μM. Taken together, PdPt3-LNT NDs have good potential applications in bio-related detection in the future.
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Affiliation(s)
- Ziyi Ma
- State Key Laboratory of Metastable Materials Science and Technology, College of Materials Science and Engineering, Yanshan University, Qinhuangdao, 066004, China
| | - Le Dong
- Key Laboratory of Applied Chemistry, Nano-biotechnology Key Lab of Hebei Province, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China
| | - Bingjie Zhang
- Key Laboratory of Applied Chemistry, Nano-biotechnology Key Lab of Hebei Province, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China
| | - Bo Liang
- State Key Laboratory of Metastable Materials Science and Technology, College of Materials Science and Engineering, Yanshan University, Qinhuangdao, 066004, China.
| | - Liqiu Wang
- Key Laboratory of Applied Chemistry, Nano-biotechnology Key Lab of Hebei Province, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China
| | - Guanglong Ma
- Centre for Cancer Immunology, Faculty of Medicine, University of Southampton, Southampton SO166YD, UK
| | - Longgang Wang
- State Key Laboratory of Metastable Materials Science and Technology, College of Materials Science and Engineering, Yanshan University, Qinhuangdao, 066004, China; Key Laboratory of Applied Chemistry, Nano-biotechnology Key Lab of Hebei Province, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China.
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Liu H, Wang Y, Zhang W, Sun W, Ji X, Zhang S, Qiao K. Lentinan extends lifespan and increases oxidative stress resistance through DAF-16 and SKN-1 pathways in Caenorhabditis elegans. Int J Biol Macromol 2022; 202:286-295. [PMID: 35041882 DOI: 10.1016/j.ijbiomac.2022.01.071] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 12/09/2021] [Accepted: 01/11/2022] [Indexed: 12/11/2022]
Abstract
Lentinan, extracted from Lentinus edodes, exhibits bioactive properties in vitro; however, little is known about the antioxidant potential in vivo. In this study, the effects of lentinan at 0.05, 0.25 and 1.25 mg/mL on the lifespan, locomotion, reproductive capacity, and oxidative stress resistance in Caenorhabditis elegans were determined. Compared to the untreated control, lentinan at 0.05, 0.25 and 1.25 mg/mL significantly prolonged the lifespan by 17.6%, 35.3% and 25.3% (p < 0.001), respectively, and improved the brood size, locomotion and stress resistance of the nematodes. Furthermore, lentinan at 0.25 mg/mL significantly reduced accumulation of intracellular reactive oxygen species (ROS) and malondialdehyde (MDA) by 38.1% (p = 0.013) and 49.7% (p = 0.028), respectively. In addition, lentinan at all tested concentrations significantly increased the activities of superoxide dismutase (SOD) and catalase (CAT). The expression of skn-1 and daf-16 in the treatments with lentinan at 0.25 and 1.25 mg/mL was significantly (p < 0.005) up-regulated compared with the untreated control, whereas that of the daf-2 gene was significantly down-regulated. Further evidence revealed that ROS production in lentinan-treated daf-16 and skn-1 mutant strains was similar to the untreated control. Consistent with the aforementioned results, lentinan enhanced the nuclear translocation of DAF-16 and SKN-1. Our results demonstrated that lentinan could increase lifespan and protect the nematodes from oxidative stress through DAF-16 and SKN-1.
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Affiliation(s)
- Huimin Liu
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Ying Wang
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Weiping Zhang
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Weichao Sun
- 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
| | - Kang Qiao
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, China.
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Yang Y, Song S, Nie Y, Chen R, Chen P. Lentinan alleviates arsenic-induced hepatotoxicity in mice via downregulation of OX40/IL-17A and activation of Nrf2 signaling. BMC Pharmacol Toxicol 2022; 23:16. [PMID: 35313999 PMCID: PMC8939159 DOI: 10.1186/s40360-022-00557-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Accepted: 03/10/2022] [Indexed: 02/05/2023] Open
Abstract
Background Arsenic, existing ubiquitously in soil, drinking water, or food, is well known to be an environmental pollutants concerned by European Food Safety Authority. Lentinan, a beta-1,6;1,3-glucan extracts from Lentinus edodes, which has the properties of antioxidant and immunomodulation, present study explored the pharmacological effects of Lentinan on arsenic induced hepatotoxicity in mice. Methods Mice experiments were performed by sodium arsenite (SA) treatment or Lentinan intervention, then histopathology, ELISA, Flow Cytometry, or Western-Blotting were applied to evaluate hepatic injury, oxidative stress, CD4+ type 17 helper T (Th17) cells, CD4+CD25+Foxp3+ regulatory T cells (Tregs), T cells receptor OX40/CD134, IL-17A, NLRP3, Nrf2, and NQO1. Results SA treatment showed hepatic pathological injury and the elevations of alanine aminotransferase (ALT) or aspartate aminotransferase (AST) in serum, and induced the increases of malondialdehyde (MDA), Th17 cells, OX40 or IL-17A in liver tissues, which were consistently ameliorated by Lentinan intervention. Further, immunoblotting experiments showed that Lentinan intervention downregulated the levels of OX40, IL-17A, and NLRP3 signals, while elevated the levels of anti-oxidative Nrf2, NQO1 signals compared to arsenic treatment group. For Tregs, Lentinan intervention showed no significant difference from SA treatment group. Conclusion Lentinan antagonizes SA-induced hepatotoxicity in mice, may be involved in the downregulations of pro-inflammatory OX40 or IL-17A and the activation of anti-oxidative Nrf2, NQO1 signals. Supplementary Information The online version contains supplementary material available at 10.1186/s40360-022-00557-7.
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Affiliation(s)
- Yuan Yang
- School of Public Health, The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, 550025, China. .,Dong Medicine Key laboratory of Hunan Province, Department of Laboratory Medicine, Hunan University of Medicine, Huaihua, 418000, China. .,Department of Toxicology, School of Public Health, Guilin Medical University, Guilin, 541004, China.
| | - Shuang Song
- School of Public Health, The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, 550025, China
| | - Yuanyuan Nie
- Dong Medicine Key laboratory of Hunan Province, Department of Laboratory Medicine, Hunan University of Medicine, Huaihua, 418000, China
| | - Rong Chen
- Dong Medicine Key laboratory of Hunan Province, Department of Laboratory Medicine, Hunan University of Medicine, Huaihua, 418000, China
| | - Peng Chen
- Dong Medicine Key laboratory of Hunan Province, Department of Laboratory Medicine, Hunan University of Medicine, Huaihua, 418000, China
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21
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Wang Z, Qu K, Zhou L, Ren L, Ren B, Meng F, Yu W, Wang H, Fan H. Apaf1 nanoLuc biosensors identified lentinan as a potent synergizer of cisplatin in targeting hepatocellular carcinoma cells. Biochem Biophys Res Commun 2021; 577:45-51. [PMID: 34507064 DOI: 10.1016/j.bbrc.2021.08.030] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Accepted: 08/10/2021] [Indexed: 12/25/2022]
Abstract
Liver cancer is one of the most common malignancies that is difficult to treat due to late diagnosis and chemo-resistance. In the present study, we developed and validated a cell based split nanoLuc biosensor to monitor the Apaf1-Apaf1 interactions in response to apoptosis-inducing drugs such as cisplatin. We showed that the activity of split nanoLuc is reconstituted only in response to apoptotic inducer, cisplatin and in a dose-dependent manner. Apaf1 mutants which were unable to oligomerize failed to recover nanoLuc activity while constitutively active variant increased the nanoLuc activity. Generation of Apaf1 knockout HepG2 and treatment with cisplatin showed dramatic reduction in cell death suggesting that cisplatin mainly targets liver cancer cells through apoptosis. As the natural products are potent sources of compounds for adjuvant therapy, we screened a collection of natural products and identified lentinan as an inducer of apoptosome formation, a key step for induction of apoptosis. Lentinan is a polysaccharide with antitumor, pro-apoptotic properties that functions with poorly understood mechanisms. Lentinan was shown to have cytotoxic effects with the IC50 of 650 μM. Sub-lethal lentinan concentration doubled the nanoLuc activity when co-treated with cisplatin. We also showed that lentinan hugely reduced the dose of cisplatin to induce certain amount of death and that lentinan co-treatment with cisplatin enhanced the Apaf1 transcription in HepG2 cells while lentinan or cisplatin alone failed to alter the transcription. In addition, lentinan and cisplatin co-treatment induced mitochondrial depolarization. This suggested that lentinan combinatorial therapy with cisplatin engaged a different signalling pathway to kill the liver cancer cells and that adjuvant therapy with lentinan can reduce the dose of cisplatin and thus reduce the possibility of chemo-resistance.
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Affiliation(s)
- Zhixin Wang
- Department of Hepatopancreatobiliary Surgery, Affiliated Hospital of Qinghai University, China
| | - Kai Qu
- Department of Hepatobiliary Surgery, First Affiliated Hospital of Xi 'an Jiaotong University, China
| | - Lei Zhou
- Department of Hepatobiliary Surgery, Binzhou Medical University Hospital, China
| | - Li Ren
- Department of Hepatopancreatobiliary Surgery, Affiliated Hospital of Qinghai University, China
| | - Bin Ren
- Department of Hepatopancreatobiliary Surgery, Affiliated Hospital of Qinghai University, China
| | - Fandi Meng
- Department of Hepatobiliary Surgery, First Affiliated Hospital of Xi 'an Jiaotong University, China
| | - Wenhao Yu
- Department of Hepatopancreatobiliary Surgery, Affiliated Hospital of Qinghai University, China
| | - Haijiu Wang
- Department of Hepatopancreatobiliary Surgery, Affiliated Hospital of Qinghai University, China
| | - Haining Fan
- Department of Hepatopancreatobiliary Surgery, Affiliated Hospital of Qinghai University, China.
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22
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Zhang Y, Liu Y, Zhou Y, Zheng Z, Tang W, Song M, Wang J, Wang K. Lentinan inhibited colon cancer growth by inducing endoplasmic reticulum stress-mediated autophagic cell death and apoptosis. Carbohydr Polym 2021; 267:118154. [PMID: 34119128 DOI: 10.1016/j.carbpol.2021.118154] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 04/15/2021] [Accepted: 04/19/2021] [Indexed: 12/12/2022]
Abstract
Lentinan (SLNT) has been shown to be directly cytotoxic to cancer cells. However, this direct antitumour effect has not been thoroughly investigated in vivo, and the mechanism remains unclear. We aimed to examine the direct antitumour effect of SLNT on human colon cancer and the mechanism in vivo and in vitro. SLNT significantly inhibited tumour growth and induced autophagy and endoplasmic reticulum stress (ERS) in HT-29 cells and tumour-bearing nonobese diabetic (NOD)/severe combined immunodeficiency (SCID) mice. Experiments with the autophagy inhibitors chloroquine (CQ) and 3-methyladenine (3-MA) showed that autophagy facilitated the antitumour effect of SLNT. Moreover, ERS was identified as the common upstream regulator of SLNT-induced increases in Ca2+concentrations, autophagy and apoptosis by using ERS inhibitors. In summary, our study demonstrated that SLNT exerted direct antitumour effects on human colon cancer via ERS-mediated autophagy and apoptosis, providing a novel understanding of SLNT as an anti-colon cancer therapy.
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Affiliation(s)
- Yu Zhang
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 430030 Wuhan, PR China; Hubei Province Clinical Research Center for Precision Medicine for Critical Illness, 430030 Wuhan, PR China
| | - Yan Liu
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 430030 Wuhan, PR China; Hubei Province Clinical Research Center for Precision Medicine for Critical Illness, 430030 Wuhan, PR China
| | - Yinxing Zhou
- Hubei Key Laboratory of Nature Medicinal Chemistry and Resource Evaluation, Tongji Medical College of Pharmacy, Huazhong University of Science and Technology, 430030 Wuhan, PR China
| | - Ziming Zheng
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 430030 Wuhan, PR China; Hubei Province Clinical Research Center for Precision Medicine for Critical Illness, 430030 Wuhan, PR China
| | - Wenqi Tang
- Hubei Key Laboratory of Nature Medicinal Chemistry and Resource Evaluation, Tongji Medical College of Pharmacy, Huazhong University of Science and Technology, 430030 Wuhan, PR China
| | - Mengzi Song
- Hubei Key Laboratory of Nature Medicinal Chemistry and Resource Evaluation, Tongji Medical College of Pharmacy, Huazhong University of Science and Technology, 430030 Wuhan, PR China
| | - Jinglin Wang
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 430030 Wuhan, PR China; Hubei Province Clinical Research Center for Precision Medicine for Critical Illness, 430030 Wuhan, PR China.
| | - Kaiping Wang
- Hubei Key Laboratory of Nature Medicinal Chemistry and Resource Evaluation, Tongji Medical College of Pharmacy, Huazhong University of Science and Technology, 430030 Wuhan, PR China.
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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] [What about the content of this article? (0)] [Affiliation(s)] [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.
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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
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Suo Z, Sun Q, Peng X, Zhang S, Gan N, Zhao L, Yuan N, Zhang Y, Li H. Lentinan as a natural stabilizer with bioactivities for preparation of drug-drug nanosuspensions. Int J Biol Macromol 2021; 184:101-108. [PMID: 34119545 DOI: 10.1016/j.ijbiomac.2021.06.056] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 05/29/2021] [Accepted: 06/08/2021] [Indexed: 01/20/2023]
Abstract
Lentinan is a natural β-glucan with various bioactivities and is combined with chemotherapy drugs for cancer treatment. Regorafenib is an oral multi-kinase inhibitor approved by FDA for treatment of metastatic colorectal cancer, advanced hepatocellular carcinoma, and metastatic gastrointestinal stromal tumors. Regorafenib has poor water solubility and multiple toxicities. We report drug-drug nanosuspensions of regorafenib and lentinan. Results of dynamic light scattering and scanning electron microscopy showed that the mean particle size of the regorafenib-lentinan nanosuspensions was approximately 200 nm and was uniformly distributed. Transmission electron microscopy findings indicated that lentinan stabilized the nanosuspensions by steric manner. Hydrogen bonds and hydrophobic interactions were found between regorafenib and lentinan by molecular dynamics simulation. The results of cytotoxicity assay and pharmacokinetics study in rats showed that the regorafenib-lentinan nanosuspensions reduced the toxicity and enhanced the in vitro anticancer activity and oral bioavailability of regorafenib. Lentinan as a natural stabilizer has the potential using for drug nanosuspensions. Drug-drug nanosuspensions are a new form of combination therapies that can reduce the number of drugs taken by patients and improve their compliance.
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Affiliation(s)
- Zili Suo
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Qiaomei Sun
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Xu Peng
- Experimental and Research Animal Institute, Sichuan University, Chengdu 610207, China
| | - Shuangshuang Zhang
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Na Gan
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Ludan Zhao
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Na Yuan
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Yongkui Zhang
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China.
| | - Hui Li
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China.
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Fan X, Hu H, Chen D, Yu B, He J, Yu J, Luo J, Eckhardt E, Luo Y, Wang J, Yan H, Mao X. Lentinan administration alleviates diarrhea of rotavirus-infected weaned pigs via regulating intestinal immunity. J Anim Sci Biotechnol 2021; 12:43. [PMID: 33750472 PMCID: PMC7945689 DOI: 10.1186/s40104-021-00562-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Accepted: 01/26/2021] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Lentinan (LNT) may regulate many important physiological functions of human and animals. This study aimed to verify whether LNT administration could relieve diarrhea via improving gut immunity in rotavirus (RV)-challenged weaned pigs. METHODS Twenty-eight weaned pigs were randomly fed 2 diets containing 0 or 84 mg/kg LNT product for 19 d (n = 14). RV infection was executed on d 15. After extracting polysaccharides from LNT product, its major monosaccharides were analyzed. Then, LNT polysaccharide was used to administrate RV-infected IPEC-J2 cells. RESULTS Dietary LNT supplementation supported normal function of piglets even when infected with RV, as reflected by reduced growth performance loss and diarrhea prevalence, and maintained gut immunity (P < 0.05). The polysaccharide was isolated from LNT product, which molecular weight was 5303 Da, and major monosaccharides included glucose, arabinose and galactose. In RV-infected IPEC-J2 cells, this polysaccharide significantly increased cell viability (P < 0.05), and significantly increased anti-virus immunity via regulating pattern recognition receptors and host defense peptides (P < 0.05). CONCLUSION Those results suggest that LNT administration increases the piglets' resistance to RV-induced stress, likely by supporting intestinal immunity.
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Affiliation(s)
- Xiangqi Fan
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Key laboratory of Animal Disease-resistant Nutrition and Feed of China Ministry of Agriculture and Rural Affairs, Key laboratory of Animal Disease-resistant Nutrition of Sichuan Province, Institute of Animal Nutrition, Sichuan Agricultural University, No. 211, Gongpinghuimin Road, Wenjiang District, Chengdu, 611130 Sichuan Province People’s Republic of China
| | - Haiyan Hu
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Key laboratory of Animal Disease-resistant Nutrition and Feed of China Ministry of Agriculture and Rural Affairs, Key laboratory of Animal Disease-resistant Nutrition of Sichuan Province, Institute of Animal Nutrition, Sichuan Agricultural University, No. 211, Gongpinghuimin Road, Wenjiang District, Chengdu, 611130 Sichuan Province People’s Republic of China
| | - Daiwen Chen
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Key laboratory of Animal Disease-resistant Nutrition and Feed of China Ministry of Agriculture and Rural Affairs, Key laboratory of Animal Disease-resistant Nutrition of Sichuan Province, Institute of Animal Nutrition, Sichuan Agricultural University, No. 211, Gongpinghuimin Road, Wenjiang District, Chengdu, 611130 Sichuan Province People’s Republic of China
| | - Bing Yu
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Key laboratory of Animal Disease-resistant Nutrition and Feed of China Ministry of Agriculture and Rural Affairs, Key laboratory of Animal Disease-resistant Nutrition of Sichuan Province, Institute of Animal Nutrition, Sichuan Agricultural University, No. 211, Gongpinghuimin Road, Wenjiang District, Chengdu, 611130 Sichuan Province People’s Republic of China
| | - Jun He
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Key laboratory of Animal Disease-resistant Nutrition and Feed of China Ministry of Agriculture and Rural Affairs, Key laboratory of Animal Disease-resistant Nutrition of Sichuan Province, Institute of Animal Nutrition, Sichuan Agricultural University, No. 211, Gongpinghuimin Road, Wenjiang District, Chengdu, 611130 Sichuan Province People’s Republic of China
| | - Jie Yu
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Key laboratory of Animal Disease-resistant Nutrition and Feed of China Ministry of Agriculture and Rural Affairs, Key laboratory of Animal Disease-resistant Nutrition of Sichuan Province, Institute of Animal Nutrition, Sichuan Agricultural University, No. 211, Gongpinghuimin Road, Wenjiang District, Chengdu, 611130 Sichuan Province People’s Republic of China
| | - Junqiu Luo
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Key laboratory of Animal Disease-resistant Nutrition and Feed of China Ministry of Agriculture and Rural Affairs, Key laboratory of Animal Disease-resistant Nutrition of Sichuan Province, Institute of Animal Nutrition, Sichuan Agricultural University, No. 211, Gongpinghuimin Road, Wenjiang District, Chengdu, 611130 Sichuan Province People’s Republic of China
| | - Erik Eckhardt
- Adisseo SAS, Center of Excellence and Research in Nutrition, 03600 Malicorne, France
| | - Yuheng Luo
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Key laboratory of Animal Disease-resistant Nutrition and Feed of China Ministry of Agriculture and Rural Affairs, Key laboratory of Animal Disease-resistant Nutrition of Sichuan Province, Institute of Animal Nutrition, Sichuan Agricultural University, No. 211, Gongpinghuimin Road, Wenjiang District, Chengdu, 611130 Sichuan Province People’s Republic of China
| | - Jianping Wang
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Key laboratory of Animal Disease-resistant Nutrition and Feed of China Ministry of Agriculture and Rural Affairs, Key laboratory of Animal Disease-resistant Nutrition of Sichuan Province, Institute of Animal Nutrition, Sichuan Agricultural University, No. 211, Gongpinghuimin Road, Wenjiang District, Chengdu, 611130 Sichuan Province People’s Republic of China
| | - Hui Yan
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Key laboratory of Animal Disease-resistant Nutrition and Feed of China Ministry of Agriculture and Rural Affairs, Key laboratory of Animal Disease-resistant Nutrition of Sichuan Province, Institute of Animal Nutrition, Sichuan Agricultural University, No. 211, Gongpinghuimin Road, Wenjiang District, Chengdu, 611130 Sichuan Province People’s Republic of China
| | - Xiangbing Mao
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Key laboratory of Animal Disease-resistant Nutrition and Feed of China Ministry of Agriculture and Rural Affairs, Key laboratory of Animal Disease-resistant Nutrition of Sichuan Province, Institute of Animal Nutrition, Sichuan Agricultural University, No. 211, Gongpinghuimin Road, Wenjiang District, Chengdu, 611130 Sichuan Province People’s Republic of China
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Cai D, Shi L, Long R, Ren G, Wang S, Liu Y. A carboxymethyl lentinan layer by layer self-assembly system as a promising drug chemotherapeutic platform. Carbohydr Polym 2021; 261:117847. [PMID: 33766343 DOI: 10.1016/j.carbpol.2021.117847] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 02/16/2021] [Accepted: 02/18/2021] [Indexed: 12/18/2022]
Abstract
Surface functionalization of mesoporous silica nanoparticles (MSNs) has been proposed as an efficient strategy for enhancing the biocompatibility and efficiency of an MSN-based carrier platform. Herein, natural polyelectrolyte multilayers composed of poly-l-ornithine (PLO) and carboxymethyl lentinan (LC) were coated on the surface of MSNs through a layer-by-layer (LbL) self-assembly technique, and were characterized by ζ-potential, FTIR, 13C NMR, SEM, TEM, XRD, and TG. The prepared carrier presented alternating positive and negative potentials when coated with the polyelectrolytes, and the surface of MSN-PLO/LC was rougher compared to the naked MSNs. The biocompatibility tests, including cytocompatibility, hemocompatibility, and histocompatibility, showed that MSNs biocompatibility could be improved by modifying LC. A high loading and sustained release drug delivery system was constructed after loading doxorubicin (DOX) into the prepared MSN-PLO/LC, which exhibited significant anti-proliferative efficiency in human cervical cancer cell lines (Hela). Therefore, the PLO/LC LbL NPs (layer-by-layer self-assembled nanoparticles coated with PLO/LC layers) based on MSNs, which is easily prepared by electrostatic interactions, can be considered a promising drug chemotherapeutic platform and delivery technique for future human cervical cancer therapy.
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Dong L, Li R, Wang L, Lan X, Sun H, Zhao Y, Wang L. Green synthesis of platinum nanoclusters using lentinan for sensitively colorimetric detection of glucose. Int J Biol Macromol 2021; 172:289-298. [PMID: 33450341 DOI: 10.1016/j.ijbiomac.2021.01.049] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 01/05/2021] [Accepted: 01/08/2021] [Indexed: 02/08/2023]
Abstract
The sensitive colorimetric detection of glucose using nanomaterials has been attracting considerable attention. To improve the detection sensitivity, highly stable lentinan stabilized platinum nanoclusters (Pt-LNT NCs) were prepared, in which lentinan was employed as a mild reductant and stabilizer. The size of platinum nanoclusters (Pt NCs) was only 1.20 ± 0.29 nm. Pt-LNT NCs catalyzed the oxidation of substrate 3,3',5,5'-tetramethylbenzidine (TMB) in the presence of hydrogen peroxide (H2O2) to produce a blue oxidation product with absorption peak at 652 nm, indicating their peroxidase-like properties. Their enzymatic kinetics followed typical Michaelis-Menten theory. In addition, fluorescence experiments confirmed their ability to efficiently catalyze the decomposition of H2O2 to generate •OH, which resulted in the peroxidase-like mechanism of Pt-LNT NCs. Moreover, a colorimetric method for highly selective and sensitive detection of glucose was established by using Pt-LNT NCs and glucose oxidase. The linear range of glucose detection was 5-1000 μM and the detection limit was 1.79 μM. Finally, this method was further used for detection of glucose in human serum and human urine. The established colorimetric method may promote the development of biological detection and environmental chemistry in the future.
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Affiliation(s)
- Le Dong
- Key Laboratory of Applied Chemistry, Hebei Key Laboratory of heavy metal deep-remediation in water and resource reuse, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China
| | - Ruyu Li
- Key Laboratory of Applied Chemistry, Hebei Key Laboratory of heavy metal deep-remediation in water and resource reuse, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China
| | - Liqiu Wang
- Key Laboratory of Applied Chemistry, Hebei Key Laboratory of heavy metal deep-remediation in water and resource reuse, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China
| | - Xifa Lan
- Department of Neurology, the First Hospital of Qinhuangdao, Qinhuangdao 066000, China.
| | - Haotian Sun
- Ocean NanoTech, LLC, San Diego, CA 92126, USA
| | - Yu Zhao
- Key Laboratory of Applied Chemistry, Hebei Key Laboratory of heavy metal deep-remediation in water and resource reuse, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China
| | - Longgang Wang
- Key Laboratory of Applied Chemistry, Hebei Key Laboratory of heavy metal deep-remediation in water and resource reuse, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China.
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Wu X, Zheng Z, Guo T, Wang K, Zhang Y. Molecular dynamics simulation of lentinan and its interaction with the innate receptor dectin-1. Int J Biol Macromol 2021; 171:527-38. [PMID: 33428957 DOI: 10.1016/j.ijbiomac.2021.01.032] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 12/28/2020] [Accepted: 01/06/2021] [Indexed: 11/23/2022]
Abstract
Lentinan, a β-1,3-D-glucan, is clinically used as an immune enhancement drug for tumor therapy. Dectin-1 is a cell-surface immune receptor, which plays an important role in immunological defense against fungal pathogens and β-glucan-mediated immune modulation. Herein we attempted to study the advanced structure of lentinan and how lentinan interacts with dectin-1 for its immune enhancement effect. We firstly used MD simulation and rigid macromolecule docking, combining some spectral techniques, to uncover the complex 3D conformation of a typical polysaccharide - lentinan, and the detailed interaction mode of lentinan with dectin-1. We proved by computational simulation that lentinan can maintain its triple-helix through hydrogen network and disclosed some structural properties of lentinan. We also characterized the affinity of lentinan to dectin-1 by LSPR and binding free energy calculation, and we found out that hydrogen bonds and CH-π interaction are the major contributors for lentinan's binding to dectin-1. Besides, after bound with lentinan, dectin-1 might surprisingly go through a conformational change. In summary, our work provided insights into lentinan's advanced structure and β-glucan recognition by dectin-1.
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Yang S, Chew H, Jiang Y, Cheng L, Guo X, Che H, Sun N. Lentinan Inhibited the Activation of Th2 Cells in Allergic Mice by Reducing the Amplitude of Changes in Biological Rhythm. Int Arch Allergy Immunol 2020; 182:167-181. [PMID: 33378763 DOI: 10.1159/000509437] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Accepted: 06/15/2020] [Indexed: 11/19/2022] Open
Abstract
INTRODUCTION Biological rhythm is inextricably linked to the physiological mechanisms of allergic diseases, but the exact mechanisms are still poorly understood. Clinical studies have reported rhythmic fluctuations in allergic diseases. The search for natural and harmless active ingredients based on biological rhythm with which to regulate allergic diseases is essential for the control of food allergy. METHODS In this study, mice were treated at different time points to determine the link between the severity of allergic reactions and the circadian clock genes. The mice were treated with lentinan, either continuously or discontinuously, to assess their clinical symptoms, vascular permeability, immune cells, cytokines, and clock genes. Specifically, rat basophilic leukemia (RBL-2H3) cells were treated with lentinan and the rhythmic changes of cell degranulation were measured. RESULTS The results in different models showed that the allergic reactions in mice treated at different time points were significantly different and thus related to fluctuations in biological rhythm. Treatment with lentinan was found to reduce the amplitude of changes in the clock genes, such as the activation of Per and Cry proteins in allergic mice, as well as to regulate biological rhythm in cells, inhibit the activation of Th2 cells, and alleviate allergic reactions. Furthermore, lentinan changed the rhythm of degranulation in RBL-2H3 cells. CONCLUSION Lentinan was, therefore, determined to successfully alleviate allergic reactions by reducing the amplitude of changes in the body's biological rhythm, inhibiting the activation of Th2 cells, and affecting the immune microenvironment.
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Affiliation(s)
- Shuai Yang
- Key Laboratory of Precision Nutrition and Food Quality, Key Laboratory of Functional Dairy, Ministry of Education, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - Huifang Chew
- Key Laboratory of Precision Nutrition and Food Quality, Key Laboratory of Functional Dairy, Ministry of Education, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - Yuchi Jiang
- Key Laboratory of Precision Nutrition and Food Quality, Key Laboratory of Functional Dairy, Ministry of Education, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - Lei Cheng
- Key Laboratory of Precision Nutrition and Food Quality, Key Laboratory of Functional Dairy, Ministry of Education, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - Xiaoya Guo
- Key Laboratory of Precision Nutrition and Food Quality, Key Laboratory of Functional Dairy, Ministry of Education, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - Huilian Che
- Key Laboratory of Precision Nutrition and Food Quality, Key Laboratory of Functional Dairy, Ministry of Education, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China,
| | - Na Sun
- School of Food Science and Technology, Dalian Polytechnic University, National Engineering Research Center of Seafood, Dalian, China
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Liu Z, Yu L, Gu P, Bo R, Wusiman A, Liu J, Hu Y, Wang D. Preparation of lentinan-calcium carbonate microspheres and their application as vaccine adjuvants. Carbohydr Polym 2020; 245:116520. [PMID: 32718625 DOI: 10.1016/j.carbpol.2020.116520] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 05/22/2020] [Accepted: 05/25/2020] [Indexed: 11/19/2022]
Abstract
Adjuvants improve vaccine potency by enhancing immunogenicity and sustaining long-term immune responses. Lentinan (LNT), a β-1,3-glucohexaose with β-1,6-branches, is extracted from the mushroom Lentinus edodes and functions as an effective immunostimulatory drug. Previous studies have demonstrated the adjuvant activity of calcium carbonate (CaCO3) microspheres as well as their use as antigen delivery systems. In this study, we successfully loaded CaCO3 microspheres with LNT and evaluated their physicochemical characteristics prior to the adsorption of ovalbumin. Our experimental results demonstrated that LNT-CaCO3 significantly enhanced lymphocyte proliferation, and boosted the frequency of CD69 + B cells and the ratio of CD4+ to CD8 + T cells in spleen lymphocytes. Moreover, LNT-CaCO3 unexpectedly induced the secretion of IgG and Th-associated cytokines (IL-2, IL-4, IFN-γ, and TNF-α) in immunized mice. Therefore, LNT-CaCO3 microspheres induce robust cellular and humoral immune responses and have potential utility as vaccine delivery systems.
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Affiliation(s)
- 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
| | - 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
| | - Pengfei Gu
- 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
| | - Ruonan Bo
- School of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, PR China
| | - Adelijiang Wusiman
- 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
| | - Jiaguo 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
| | - Yuanliang Hu
- 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.
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Xiao Z, Jiang Y, Chen XF, Wang CQ, Zheng XT, Xu WH, Zou XX, Zhou JM, Yang YH, Hu SS, Shan LJ, Cai QY, Tang YH, Feng JH, Xiao X. Intrathoracic infusion therapy with Lentinan and chemical irritants for malignant pleural effusion: a systematic review and meta-analysis of 65 randomized controlled trials. Phytomedicine 2020; 76:153260. [PMID: 32535483 DOI: 10.1016/j.phymed.2020.153260] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 01/07/2020] [Accepted: 05/31/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Aderivative of Shiitake mushrooms, Lentinan is used to control malignant pleural effusion (MPE) through intrathoracic infusion. PURPOSE To determine the clinical response, survival and safety of Lentinan plus chemical irritants, and the optimal combinations with chemical irritants, indication, threshold and optimal regimen for achieving the desired responses. STUDY DESIGN We performed a new systematic review and meta-analysis following the PRISMA guidelines. METHODS We collected all randomized controlled trials (RCTs) regarding Lentinan plus chemical irritants from Chinese and English electronic databases (from inception until March 2019). We evaluated their bias risk, synthesized data using meta-analysis, and summarized evidence quality following the Grades of Recommendation Assessment, Development and Evaluation approach. RESULTS We included 65 RCTs involving 4,080 patients and nine chemical irritants. Most trials had unclear bias risk. Lentinan with cisplatin significantly improved complete response [Risk ratio (RR) = 1.68, 95% confidence intervals (CI) (1.51 to 1.87), p < 0.00001, Fig.3a] and quality of life [RR = 1.51 95% CI (1.41 to 1.62), p < 0.00001, Fig.4], and decreased the risk of treatment failure, myelosuppression, gastrointestinal reaction, and chest pain. For patients with moderate to large volume of the pleural effusion, primary treatment, KPS score ≥ 50-60, or anticipated survival time ≥ 3months, Lentinan (3-4 mg/time, once a week for three to four times) withcisplatin (30-40 mg/m2 or 50-60 mg/m2) significantly improved complete response and decreased failure. Most results were robust and moderate quality. CONCLUSION The results suggest that Lentinan with chemical irritants, especially cisplatin is beneficial to the patient with MPE, and provide evidence for the indication, threshold, and optimal regimen that may achieve success and decrease failure.
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Affiliation(s)
- Zheng Xiao
- Department of General Practice, Affiliated Hospital of Zunyi Medical University, Zunyi563003, Guizhou, China; Evidence-Based Medicine Center, MOE Virtual Research Center of Evidence-based Medicine at Zunyi Medical College, AffiliatedHospital of Zunyi Medical University, Zunyi563003, Guizhou, China; School of Management,Zunyi Medical University, Zunyi563003, Guizhou, China.
| | - Yuan Jiang
- Evidence-Based Medicine Center, MOE Virtual Research Center of Evidence-based Medicine at Zunyi Medical College, AffiliatedHospital of Zunyi Medical University, Zunyi563003, Guizhou, China; School of Management,Zunyi Medical University, Zunyi563003, Guizhou, China
| | - Xiao-Fan Chen
- Evidence-Based Medicine Research Centre, Jiangxi University of Traditional Chinese Medicine, Nanchang330004, Jiangxi, China
| | - Cheng-Qiong Wang
- Department of General Practice, Affiliated Hospital of Zunyi Medical University, Zunyi563003, Guizhou, China; Evidence-Based Medicine Center, MOE Virtual Research Center of Evidence-based Medicine at Zunyi Medical College, AffiliatedHospital of Zunyi Medical University, Zunyi563003, Guizhou, China
| | - Xiao-Tian Zheng
- Department of General Practice, Affiliated Hospital of Zunyi Medical University, Zunyi563003, Guizhou, China; Evidence-Based Medicine Center, MOE Virtual Research Center of Evidence-based Medicine at Zunyi Medical College, AffiliatedHospital of Zunyi Medical University, Zunyi563003, Guizhou, China
| | - Wei-Hong Xu
- Department of Public Health, Zunyi Medical University, Zunyi563003, Guizhou, China
| | - Xing-Xia Zou
- Chishui Traditional Chinese Medicine Hospital, Chishui564700, Guizhou, China
| | - Jia-Mei Zhou
- Department of Cardiovascular Surgery,Affiliated Hospital of Zunyi Medical University, Zunyi563003,Guizhou, China
| | - Ya-Hui Yang
- School of Management,Zunyi Medical University, Zunyi563003, Guizhou, China
| | - Shan-Shan Hu
- GCP Center, Affiliated Hospital of Zunyi Medical University, Zunyi563003, Guizhou, China
| | - Li-Jing Shan
- Department of General Practice, Affiliated Hospital of Zunyi Medical University, Zunyi563003, Guizhou, China
| | - Qing-Yong Cai
- Department of Thoracic Surgery,Affiliated Hospital of Zunyi Medical University, Zunyi563003,Guizhou, China
| | - Yu-Hong Tang
- School of Management,Zunyi Medical University, Zunyi563003, Guizhou, China
| | - Ji-Hong Feng
- Department of Oncology, Lishui People's Hospital, Sixth Affiliated Hospital of Wenzhou Medical University, LishuiZhejiang, 323000, China
| | - Xue Xiao
- Department of General Practice, Affiliated Hospital of Zunyi Medical University, Zunyi563003, Guizhou, China; Evidence-Based Medicine Center, MOE Virtual Research Center of Evidence-based Medicine at Zunyi Medical College, AffiliatedHospital of Zunyi Medical University, Zunyi563003, Guizhou, China.
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Congcong Q, Hengting Z, Shuhui L, Fang Y, Shan W. Evaluation of Efficacy and Safety for Lentinan in the Control of the Malignant Pleural Effusions via Intrapleural Injection. Am J Med Sci 2019; 358:400-411. [PMID: 31813467 DOI: 10.1016/j.amjms.2019.09.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 09/24/2019] [Accepted: 09/26/2019] [Indexed: 01/08/2023]
Abstract
BACKGROUND Many studies have investigated the efficacy and safety of lentinan combined with cisplatin versus cisplatin alone for controlling malignant pleural effusion (MPE). This study is a meta-analysis of available evidence. MATERIALS AND METHODS Seventeen studies reporting lentinan combined with cisplatin versus cisplatin alone for controlling MPE were reviewed. Pooled odds ratios and hazard ratio with 95% confidence intervals were calculated using the fixed effects model of meta-analysis. RESULTS The overall response rate (ORR) of lentinan combined with cisplatin for controlling MPE was significantly higher than that of cisplatin alone (P < 0.001). In addition, lentinan combined with cisplatin showed a better benefit of quality of life (QOL) compared with cisplatin alone (P < 0.001). The main adverse effects (AEs) found in the control plan were hematological reactions, nausea/vomiting, chest pain and fever. However, the presence of lentinan did not have an extra influence on the incidence of AEs (P > 0.05). CONCLUSIONS Intrapleural injection of lentinan combined with cisplatin had a better benefit of ORR and QOL for controlling MPE, compared with cisplatin alone. Moreover, lentinan combined with cisplatin had a similar incidence of AEs with cisplatin alone.
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Affiliation(s)
| | | | | | - Yuan Fang
- Institute of Clinical Pharmacy & Pharmacology, Jining NO.1 People's Hospital, Jining, China
| | - Wang Shan
- Institute of Clinical Pharmacy & Pharmacology, Jining NO.1 People's Hospital, Jining, China.
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Jiang Y, Li X, Wu Y, Zhou L, Wang Z, Xiao W. Effect of Lentinan on Peyer's patch structure and function in an immunosuppressed mouse model. Int J Biol Macromol 2019; 137:169-176. [PMID: 31255627 DOI: 10.1016/j.ijbiomac.2019.06.206] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2019] [Revised: 06/20/2019] [Accepted: 06/26/2019] [Indexed: 10/26/2022]
Abstract
Lentinan (LNT), a polysaccharide isolated from Lentinus edodes, has been shown to stimulate immune response. Despite its widespread use owing to its health benefits, epidemiologic and experimental studies that address the biological activities of LNT after oral administration to animals or humans are rare. In this study, the effects of LNT on the intestinal mucosal immune system of immunosuppressed mice were investigated. The number and size of the Peyer's patches (PPs), proliferation ability of PP lymphocytes, T and B lymphocyte percentage, and T-cell activation proportion, as well as the number of M-like cells in PPs, were determined. The antigen transfer ability of M-like cells and intestinal secretory immunoglobulin A (IgA) levels were also detected. After oral administration of LNT for 7 days, the number of PPs, lymphocytes in PPs, and the level of intestinal soluble IgA in immunosuppressed mice were increased. LNT maintained the percentage of T and B lymphocytes and upregulated the proportion of activated T cells in PPs. Furthermore, the number of M-like cells, which were differentiated from intestinal epithelial cells, and their antigen transfer ability were enhanced. These results indicate that orally administered LNT can improve the immune status of the intestinal mucosa in immunosuppressed mice.
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Affiliation(s)
- Yiping Jiang
- Jiangsu Kanion Pharmaceutical Co., Ltd., Jiangning Industrial City, Economic and Technological Development Zone, Lianyungang, Jiangsu 222001, China
| | - Xiangling Li
- R & D Department, Guangdong Hybribio Technology Co. Ltd, No. 71, Fengsan Road, Huangpu District, Guangzhou, Guangdong 510520, China
| | - Yun Wu
- Jiangsu Kanion Pharmaceutical Co., Ltd., Jiangning Industrial City, Economic and Technological Development Zone, Lianyungang, Jiangsu 222001, China
| | - Lian Zhou
- Guangzhou University of Chinese Medicine, No. 232 Waihuan Dong Rd., Guangzhou University Town, Panyu District, Guangzhou, Guangdong 510006, China.
| | - Zhenzhong Wang
- Jiangsu Kanion Pharmaceutical Co., Ltd., Jiangning Industrial City, Economic and Technological Development Zone, Lianyungang, Jiangsu 222001, China
| | - Wei Xiao
- Jiangsu Kanion Pharmaceutical Co., Ltd., Jiangning Industrial City, Economic and Technological Development Zone, Lianyungang, Jiangsu 222001, China.
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Tian Y, Yi W, Bai L, Zhang P, Si J, Hou X, Deng Y, Hou J. Lentinan in-situ coated tungsten oxide nanorods as a nanotherapeutic agent for low power density photothermal cancer therapy. Int J Biol Macromol 2019; 137:904-911. [PMID: 31252011 DOI: 10.1016/j.ijbiomac.2019.06.183] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 06/17/2019] [Accepted: 06/24/2019] [Indexed: 12/14/2022]
Abstract
Development of high photothermal performance and biocompatible nanotherapeutic agents is of great importance for photothermal cancer treatment. In this paper, we have developed lentinan decorated tungsten oxide nanorods (W18O49@LTN NRs) via a mild one-step solvothermal route. Owing to the numerous surface hydroxyl groups of polymer chains, the presence of lentinan layer in the surface of W18O49 NRs lead to good biocompatibility. The lentinan layer also affects the crystal structure of W18O49 and improves near-infrared absorption (~1.7 × 109 M-1 cm-1 at 980 nm), which is two orders of higher than previously reported PEGylated W18O49 nanowires. Even under near-infrared (NIR) laser irradiation at a very low power density of 0.4 W/cm2, the temperature of W18O49@LTN NRs aqueous dispersion (125 μg/mL) could increase by 15.1 °C. The photothermal conversion efficiency of W18O49@LTN NRs reaches 33.86%, which is higher than previously reported WO3-x hierarchical nanostructures (28.1%). Importantly, when cancer cells were treated with W18O49@LTN NRs (200 μg/mL) and 980 nm laser (0.4 W/cm2), a significant photo-induced cell killing behavior was observed. This work demonstrates that W18O49@LTN NRs have the potential for precise cancer treatment.
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Affiliation(s)
- Yilong Tian
- Key Laboratory for Information Photonic Technology of Shaanxi Province & Key Laboratory for Physical Electronics and Devices of the Ministry of Education, School of Information and Electronics Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, People's Republic of China
| | - Wenhui Yi
- Key Laboratory for Information Photonic Technology of Shaanxi Province & Key Laboratory for Physical Electronics and Devices of the Ministry of Education, School of Information and Electronics Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, People's Republic of China.
| | - Lei Bai
- Key Laboratory for Information Photonic Technology of Shaanxi Province & Key Laboratory for Physical Electronics and Devices of the Ministry of Education, School of Information and Electronics Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, People's Republic of China
| | - Ping Zhang
- Key Laboratory for Information Photonic Technology of Shaanxi Province & Key Laboratory for Physical Electronics and Devices of the Ministry of Education, School of Information and Electronics Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, People's Republic of China
| | - Jinhai Si
- Key Laboratory for Information Photonic Technology of Shaanxi Province & Key Laboratory for Physical Electronics and Devices of the Ministry of Education, School of Information and Electronics Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, People's Republic of China
| | - Xun Hou
- Key Laboratory for Information Photonic Technology of Shaanxi Province & Key Laboratory for Physical Electronics and Devices of the Ministry of Education, School of Information and Electronics Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, People's Republic of China
| | - Yating Deng
- Department of Pharmacology, School of Basic Medical Sciences, Xi'an Medical University, Xi'an 710021, Shaanxi, People's Republic of China
| | - Jin Hou
- Department of Pharmacology, School of Basic Medical Sciences, Xi'an Medical University, Xi'an 710021, Shaanxi, People's Republic of China.
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Cussigh CS, Fink C, Winkler JK, Toberer F, Enk A, Sattler EC, Haenssle HA. [Reflectance confocal microscopy in Shiitake dermatitis]. Hautarzt 2019; 70:811-4. [PMID: 31087127 DOI: 10.1007/s00105-019-4420-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Shiitake dermatitis usually occurs 1-2 days after consumption of incompletely cooked or raw shiitake mushrooms and is characterized by linear, pruritic, erythematous papulovesicular rashes. It is caused by lentinan, a polysaccharide component of the cell walls of shiitake mushrooms. The histological examination showed an eczema-like morphology with spongiosis and lymphohistiocytic infiltrates. The results of reflectance confocal microscopy (RCM) correlated with the histopathological investigations. Therefore, RCM can be used for non-invasive diagnostic confirmation of Shiitake dermatitis in the future.
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Wang XE, Wang YH, Zhou Q, Peng M, Zhang J, Chen M, Ma LJ, Xie GM. Immunomodulatory Effect of Lentinan on Aberrant T Subsets and Cytokines Profile in Non-small Cell Lung Cancer Patients. Pathol Oncol Res 2018; 26:499-505. [PMID: 30460541 DOI: 10.1007/s12253-018-0545-y] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 11/16/2018] [Indexed: 10/27/2022]
Abstract
As a purified active component from traditional Chinese medicine, lentinan administration can be applied as beneficial chemo-immunotherapy for anti-tumor. In this study, the immunomodulatory effects of lentinan on aberrant T subsets and cytokines profile were evaluated for non-small cell lung cancer (NSCLC). Of all NSCLC patients treated with NP chemotherapeutic protocol (combination of vinorelbin and cisplatin), 73 cases were recruited in this retrospective cohort trial study, of which 38 cases received additional lentinan. The changes of aberrant T subsets and cytokines profile were compared between two groups (chemotherapy in combination with lentinan vs. conserved single chemotherapy) by flow cytometry and molecular biology. Higher subset ratio of CD3+CD8+ cytotoxic T cells was confirmed in the peripheral blood of NSCLC patients. Chemo-immunotherapy of lentinan resulted in a significant increase of CD3 + CD56+ NKT cells (15.7 ± 3.1%), compared with 8.6 ± 1.4% of NKT cells in single chemotherapy group, and up-regulated CD3+CD8+ and CD3+CD4+ subsets as well, but caused the decrease of CD4+CD25+ Tregs induction, accompanied by significant alleviation of IL-10 and TGF-β1, and elevation of IFN-γ, TNF-α, and IL-12 (P < 0.05). It could be confirmed that lentinan could not only enhance the cellular immunity and promote the beneficial of anti-tumor by associated immunotherapy, but also had the ability to inhibit the expansion of immune suppressive Tregs in the NSCLC patients, in whom there was a raised Tregs induction compared to health control. Lentinan-based chemo-immunotherapy is a promising strategy for anti-tumor via enhancing the proliferation of cytotoxic T cells, followed by the elevation of inflammatory chemokines/cytokines. Meanwhile, the percentage of CD4+ CD25+ Tregs is down-regulated, leading to a shift in the inflammatory status from Th2 to Th1 in NSCLC patients treated with lentinan.
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Affiliation(s)
- Xi-En Wang
- Department of Integrated Traditional Chinese and Western Medicine on Oncology, Ningbo Yinzhou People Hospital, Ningbo, Zhejiang, 315040, China.
| | - You-Hui Wang
- Department of Integrated Traditional Chinese and Western Medicine on Oncology, Ningbo Yinzhou People Hospital, Ningbo, Zhejiang, 315040, China
| | - Qiang Zhou
- Department of Integrated Traditional Chinese and Western Medicine on Oncology, Ningbo Yinzhou People Hospital, Ningbo, Zhejiang, 315040, China
| | - Min Peng
- Department of Integrated Traditional Chinese and Western Medicine on Oncology, Ningbo Yinzhou People Hospital, Ningbo, Zhejiang, 315040, China
| | - Jing Zhang
- Department of Integrated Traditional Chinese and Western Medicine on Oncology, Ningbo Yinzhou People Hospital, Ningbo, Zhejiang, 315040, China
| | - Mi Chen
- Department of Integrated Traditional Chinese and Western Medicine on Oncology, Ningbo Yinzhou People Hospital, Ningbo, Zhejiang, 315040, China
| | - Li-Juan Ma
- Department of Integrated Traditional Chinese and Western Medicine on Oncology, Ningbo Yinzhou People Hospital, Ningbo, Zhejiang, 315040, China
| | - Guo-Ming Xie
- Department of Integrated Traditional Chinese and Western Medicine on Oncology, Ningbo Yinzhou People Hospital, Ningbo, Zhejiang, 315040, China
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Deng S, Zhang G, Kuai J, Fan P, Wang X, Zhou P, Yang D, Zheng X, Liu X, Wu Q, Huang Y. Lentinan inhibits tumor angiogenesis via interferon γ and in a T cell independent manner. J Exp Clin Cancer Res 2018; 37:260. [PMID: 30373628 PMCID: PMC6206909 DOI: 10.1186/s13046-018-0932-y] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/01/2018] [Accepted: 10/17/2018] [Indexed: 12/15/2022]
Abstract
Background Antiangiogenic agents are commonly used in lung and colon cancer treatments, however, rapid development of drug resistance limits their efficacy. Methods Lentinan (LNT) is a biologically active compound extracted from Lentinus edodes. The effects of LNT on tumor angiogenesis were evaluated by immunohistochemistry in murine LAP0297 lung and CT26 colorectal tumor models. The impacts of LNT on immune cells and gene expression in tumor tissues were determined by flow cytometry, qPCR, and ELISA. Nude mice and IFNγ blockade were used to investigate the mechanism of LNT affecting on tumor angiogenesis. The data sets were compared using two-tailed student’s t tests or ANOVA. Results We found that LNT inhibited tumor angiogenesis and the growth of lung and colon cancers. LNT treatments elevated the expression of angiostatic factors such as IFNγ and also increased tumor infiltration of IFNγ-expressing T cells and myeloid cells. Interestingly, IFNγ blockade, but not T cell deficiency, reversed the effects of LNT treatments on tumor blood vessels. Moreover, long-lasting LNT administration persistently suppressed tumor angiogenesis and inhibited tumor growth. Conclusions LNT inhibits tumor angiogenesis by increasing IFNγ production and in a T cell-independent manner. Our findings suggest that LNT could be developed as a new antiangiogenic agent for long-term treatment of lung and colon cancers. Electronic supplementary material The online version of this article (10.1186/s13046-018-0932-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Shengming Deng
- Cyrus Tang Hematology Center, Collaborative Innovation Center of Hematology, State Key Laboratory of Radiation Medicine and Prevention, Soochow University, 199 Ren-Ai Road, Suzhou, 215123, Jiangsu, China
| | - Guoxi Zhang
- Nanjing Luye Pharmaceutical Co., Ltd, Nanjing, 210061, Jiangsu, China
| | - Jiajie Kuai
- Cyrus Tang Hematology Center, Collaborative Innovation Center of Hematology, State Key Laboratory of Radiation Medicine and Prevention, Soochow University, 199 Ren-Ai Road, Suzhou, 215123, Jiangsu, China
| | - Peng Fan
- Cyrus Tang Hematology Center, Collaborative Innovation Center of Hematology, State Key Laboratory of Radiation Medicine and Prevention, Soochow University, 199 Ren-Ai Road, Suzhou, 215123, Jiangsu, China
| | - Xuexiang Wang
- Cyrus Tang Hematology Center, Collaborative Innovation Center of Hematology, State Key Laboratory of Radiation Medicine and Prevention, Soochow University, 199 Ren-Ai Road, Suzhou, 215123, Jiangsu, China
| | - Pei Zhou
- Cyrus Tang Hematology Center, Collaborative Innovation Center of Hematology, State Key Laboratory of Radiation Medicine and Prevention, Soochow University, 199 Ren-Ai Road, Suzhou, 215123, Jiangsu, China
| | - Dan Yang
- Department of Traditional Chinese Medicine, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, No. 1 Shuaifuyuan, Dongcheng District, Beijing, 100730, China
| | - Xichen Zheng
- Cyrus Tang Hematology Center, Collaborative Innovation Center of Hematology, State Key Laboratory of Radiation Medicine and Prevention, Soochow University, 199 Ren-Ai Road, Suzhou, 215123, Jiangsu, China
| | - Xiaomei Liu
- Cyrus Tang Hematology Center, Collaborative Innovation Center of Hematology, State Key Laboratory of Radiation Medicine and Prevention, Soochow University, 199 Ren-Ai Road, Suzhou, 215123, Jiangsu, China
| | - Qunli Wu
- Department of Traditional Chinese Medicine, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, No. 1 Shuaifuyuan, Dongcheng District, Beijing, 100730, China.
| | - Yuhui Huang
- Cyrus Tang Hematology Center, Collaborative Innovation Center of Hematology, State Key Laboratory of Radiation Medicine and Prevention, Soochow University, 199 Ren-Ai Road, Suzhou, 215123, Jiangsu, China.
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Ren G, Xu L, Lu T, Zhang Y, Wang Y, Yin J. Protective effects of lentinan on lipopolysaccharide induced inflammatory response in intestine of juvenile taimen (Hucho taimen, Pallas). Int J Biol Macromol 2018; 121:317-325. [PMID: 30248420 DOI: 10.1016/j.ijbiomac.2018.09.121] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Revised: 09/19/2018] [Accepted: 09/20/2018] [Indexed: 02/07/2023]
Abstract
Antioxidant effects of lentinan on LPS induced inflammatory response in intestine of juvenile taimen were evaluated, and its prebiotic-like efficacy on intestinal microbiota was also investigated. The results showed that LPS decreased the activities of antioxidant enzymes and increased the expression levels of inflammatory cytokines in intestine of juvenile taimen. Dietary lentinan significantly enhanced intestinal antioxidant ability by increasing the activities of SOD, GSH-Px and CAT, and inhibiting the lipid peroxidation in juvenile taimen. Appropriate lentinan prevented the increases in the expression levels of TGF-β, TNF-α, IL1β, IL6 and IL8 and ensured the relatively high expression levels of claudin d, SOD, CAT and IκBα after LPS challenge. Furthermore, dietary lentinan effectively modified intestinal microbiota, represented by increasing the relative abundance of beneficial bacteria such as Lactobacillaceae, Lachnospiraceae and Ruminococcaceae, and decreasing those of detrimental bacteria such as Enterobacteriaceae, Fusobacteriaceae and Flavobacteriaceae. Taken together, dietary lentinan availably decreased LPS induced inflammatory response, indicating that lentinan has the potential anti-inflammatory effects for preventing inflammation diseases in cold-water fish.
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Affiliation(s)
- Guangming Ren
- Heilongjiang River Fishery Research Institute Chinese Academy of Fishery Sciences, Harbin 150070, PR China
| | - Liming Xu
- Heilongjiang River Fishery Research Institute Chinese Academy of Fishery Sciences, Harbin 150070, PR China
| | - Tongyan Lu
- Heilongjiang River Fishery Research Institute Chinese Academy of Fishery Sciences, Harbin 150070, PR China
| | - Yongquan Zhang
- Heilongjiang River Fishery Research Institute Chinese Academy of Fishery Sciences, Harbin 150070, PR China
| | - Yuanyuan Wang
- Heilongjiang River Fishery Research Institute Chinese Academy of Fishery Sciences, Harbin 150070, PR China
| | - Jiasheng Yin
- Heilongjiang River Fishery Research Institute Chinese Academy of Fishery Sciences, Harbin 150070, PR China.
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Zhang Y, Zhang M, Jiang Y, Li X, He Y, Zeng P, Guo Z, Chang Y, Luo H, Liu Y, Hao C, Wang H, Zhang G, Zhang L. Lentinan as an immunotherapeutic for treating lung cancer: a review of 12 years clinical studies in China. J Cancer Res Clin Oncol 2018; 144:2177-86. [PMID: 30043277 DOI: 10.1007/s00432-018-2718-1] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Accepted: 07/19/2018] [Indexed: 10/28/2022]
Abstract
PURPOSE Lentinan is a polysaccharide extracted from Shiitake mushrooms that have been used to improve general health for thousands of years in Asia. Lentinan injection is a clinically approved drug in several countries in Asia. The purpose of this study is to review the structure, preclinical and clinical studies, and molecular mechanisms of lentinan. Most importantly, the clinical effectiveness of lentinan as an adjuvant therapeutic drug in treating patients with lung cancer in China during the past 12 years is analyzed statistically. METHODS We carried out literature search of randomized controlled trials (RCTs) published from 2004 to 2016 based on CNKI (China National Knowledge Infrastructure), VIP (Chongqing VIP Chinese Scientific Journals Database) and Wanfang database, and 38 eligible RCTs of lentinan-associated lung cancer treatment were identified, containing 3,117 patients. RESULTS The structure and function relationship and underlying molecular mechanism of lentinan as an immunostimulant has been summarized. The mean value of overall response rate in treating lung cancer was increased from 43.3% of chemotherapy alone to 56.9% of lentinan plus chemotherapy [p < 0.001, 95% confidence interval (CI) 0.102-0.170]. Compared with chemotherapy alone, lentinan plus chemotherapy showed more efficacy in treating lung cancer (pooled RR 0.79, 95% CI 0.74-0.85) and no statistical heterogeneity was found among studies (I2 = 11%). CONCLUSION Clinical data presented in the past 12 years shows that lentinan is effective not only in improving quality of life, but also in promoting the efficacy of chemotherapy during lung cancer treatment.
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Chen M, Lu B, Li Y, Wang Y, Zheng H, Zhong D, Liao Z, Wang M, Ma F, Liao Q, Xie Z. Metabolomics insights into the modulatory effects of long-term compound polysaccharide intake in high-fat diet-induced obese rats. Nutr Metab (Lond) 2018; 15:8. [PMID: 29410697 PMCID: PMC5781284 DOI: 10.1186/s12986-018-0246-2] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Accepted: 01/15/2018] [Indexed: 12/12/2022] Open
Abstract
Background Polysaccharides can alleviate obesity in mammals; however, studies on mechanism of this alleviation are limited. A few studies have indicated that polysaccharides improve obesity by regulating the metabolism of the body. Therefore, a metabolomics approach, consisting of high resolution nuclear magnetic resonance (NMR) spectroscopy and a multivariate statistical technique, was applied to explore the mechanism of the protective effects of lentinan and Flos Lonicera polysaccharides (LF) on high-fat diet (HFD) induced obesity. Methods In this study, rats were randomly divided into three groups: control diet (CD), HFD, and HFD supplemented with a mixture of lentinan and Flos Lonicera polysaccharide. Histopathological and clinical biochemical assessments were also conducted. A combination of a NMR metabolomics study and a multivariable statistical analysis method to distinguish urinary and fecal metabolites was applied. Results Significant obesity symptoms appeared in HFD rats (for example, significant weight gain, epididymal adipose accumulation and lipid deposition in hepatocytes), which was attenuated in the LF group. Additionally, the HFD induced a reduction of choline, citrate, pyruvate and glycerol and increased the levels of trimethylamine oxide (TMAO) and taurine. Of note, these metabolic disorders were reversed by LF intervention mainly through pathways of energy metabolism, choline metabolism and gut microbiota metabolism. Conclusions LF supplementation had a re-balancing effect on the disturbed metabolic pathways in the obese body. The results of this study validate the therapeutic effect of the compound polysaccharide--LF in obesity and described the biochemical and metabolic mechanisms involved. Electronic supplementary material The online version of this article (10.1186/s12986-018-0246-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Mingyi Chen
- 1School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006 People's Republic of China
| | - Biyu Lu
- 2School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510407 People's Republic of China
| | - Yuan Li
- 2School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510407 People's Republic of China
| | - Yuanyuan Wang
- Infinitus (China) Company Ltd, Guangzhou, 510623 China
| | - Haihui Zheng
- 1School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006 People's Republic of China
| | - Danmin Zhong
- 1School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006 People's Republic of China
| | - Ziqiong Liao
- 1School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006 People's Republic of China
| | - Mengxia Wang
- 2School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510407 People's Republic of China
| | - Fangli Ma
- Infinitus (China) Company Ltd, Guangzhou, 510623 China
| | - Qiongfeng Liao
- 2School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510407 People's Republic of China
| | - Zhiyong Xie
- 1School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006 People's Republic of China
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Ina K, Ina H, Yoneda M, Kabeya M, Yuasa S, Tomomatsu Y, Furuta R. [A retrospective analysis of chemotherapy for gastric cancer in later-stage elderly patients]. Nihon Ronen Igakkai Zasshi 2018; 55:244-250. [PMID: 29780093 DOI: 10.3143/geriatrics.55.244] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
AIM Despite the significant advances in chemotherapy, the prognosis of unresectable or recurrent gastric cancer is still very poor. Given that older adults are likely to have a number of concomitant diseases and an impaired major organ function, cancer chemotherapy in elderly patients requires particular caution. We examined what factors are associated with the overall survival of gastric cancer patients undergoing chemotherapy. METHODS A retrospective chart review of gastric cancer patients receiving oral fluoropyrimidines (N=130) was performed at Nagoya Memorial Hospital over 9 years. The overall survival was calculated from the beginning of chemotherapy until death or the most recent date of follow-up. The Kaplan-Meier method was used to plot survival curves, which were compared using the log-rank test. A multivariate analysis was performed using stepwise Cox proportional hazards models. A comprehensive geriatric assessment was conducted for the elderly patients. The chart review was approved by the ethics committee of Nagoya Memorial Hospital. RESULTS The objective response rate and overall survival did not differ markedly between the patients < 75 years (N=64) and those ≥ 75 years of age (N=28). The addition of lentinan significantly prolonged the survival of the stage 4 gastric cancer patients. In a multivariate analysis of those ≥ 75 years of age, the only independent prognostic factor for the survival was the functional capacity, as measured by the TMIG Index of Competence. CONCLUSIONS This comprehensive geriatric assessment was useful for predicting the longevity of patients with stage 4 gastric cancer ≥ 75 years of age.
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Affiliation(s)
- Kenji Ina
- Department of Medical Oncology, Nagoya Memorial Hospital
| | - Hiroko Ina
- School of Nursing and Health, Aichi Prefectural University
| | | | | | - Syuu Yuasa
- Department of Pharmacy, Nagoya Memorial Hospital
| | - Yuko Tomomatsu
- Medical Social Work Consultation Room, Nagoya Memorial Hospital
| | - Ryuichi Furuta
- Department of Medical Oncology, Nagoya Memorial Hospital
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Abstract
S-1 is an oral agent containing tegafur (a prodrug of 5-fluorouracil) that is used to treat various cancers, but adverse effects are frequent. Two pilot clinical studies have suggested that lentinan (LNT; β-1,3-glucan) may reduce the incidence of adverse effects caused by S-1 therapy. In this study, we established a murine model for assessment of gastrointestinal toxicity associated with S-1 and studied the effect of LNT. S-1 was administered orally to BALB/c mice at the effective dose (8.3mg/kg, as tegafur equivalent) once daily (5days per week) for 3weeks. Stool consistency and intestinal specimens were examined. We investigated the effect of combined intravenous administration of LNT at 0.1mg, which is an effective dose in murine tumor models. We also investigated the effect of a single administration of S-1. During long-term administration of S-1, some mice had loose stools and an increase in apoptotic bodies was observed in the ileal crypts. An increase in apoptotic bodies was also noted after a single administration of S-1 (15mg/kg). Prior or concomitant administration of LNT inhibited the increase in apoptotic bodies in both settings. Administration of LNT also increased the accumulation of CD11b+TIM-4+ cells in the ileum, while depletion of these cells by liposomal clodronate diminished the inhibitory effect of LNT on S-1 toxicity. Combined administration of LNT with S-1 led to a decrease in apoptotic bodies in the ileal crypts, possibly because LNT promoted phagocytosis of damaged cells by CD11b+TIM-4+ cells.
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Barton C, Vigor K, Scott R, Jones P, Lentfer H, Bax HJ, Josephs DH, Karagiannis SN, Spicer JF. Beta-glucan contamination of pharmaceutical products: How much should we accept? Cancer Immunol Immunother 2016; 65:1289-1301. [PMID: 27473075 PMCID: PMC5069311 DOI: 10.1007/s00262-016-1875-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Accepted: 07/20/2016] [Indexed: 02/07/2023]
Abstract
Beta-glucans are large polysaccharides produced by a range of prokaryotic and eukaryotic organisms. They have potential immunostimulatory properties and have been used with therapeutic intent as anti-microbial and anti-tumour agents. A range of other potentially beneficial effects have been described, and oral forms of beta-glucans are widely available over-the-counter and online. Parenteral formulations are popular in parts of Asia and are the subject of ongoing trials, worldwide. Beta-glucans are also potential contaminants of pharmaceutical products, and high levels have been described in some blood products. However, little is known about the clinical effects of such contamination, considerable uncertainty exists over the level at which immunostimulation may occur, and there are no guidelines available on acceptable levels. We encountered beta-glucan contamination of one of our products, and we suspect that others may encounter similar issues since the origin of beta-glucan contamination includes commonly used filters and solutions applied in the manufacture of biotherapeutic agents. It is likely that regulators will increasingly enquire about beta-glucan levels in pharmaceutical products, especially those with an immunomodulatory mechanism of action. Here, we review the literature on beta-glucans in pharmaceutical products and propose an acceptable level for therapeutic agents for parenteral use.
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Affiliation(s)
- Claire Barton
- Cancer Research UK Centre for Drug Development, Cancer Research UK, Angel Building, 407 St John Street, London, EC1V 4AD, UK.
| | - Kim Vigor
- Biotherapeutics Development Unit, Cancer Research UK, South Mimms, Hertfordshire, EN6 3LD, UK
| | - Robert Scott
- Biotherapeutics Development Unit, Cancer Research UK, South Mimms, Hertfordshire, EN6 3LD, UK
| | - Paul Jones
- Cancer Research UK Centre for Drug Development, Cancer Research UK, Angel Building, 407 St John Street, London, EC1V 4AD, UK
| | - Heike Lentfer
- Biotherapeutics Development Unit, Cancer Research UK, South Mimms, Hertfordshire, EN6 3LD, UK
| | - Heather J Bax
- Division of Genetics and Molecular Medicine, Faculty of Life Sciences and Medicine, St. John's Institute of Dermatology, King's College London, 9th Floor, Guy's Tower Wing, Guy's Hospital, London, SE1 9RT, UK
- NIHR Biomedical Research Centre at Guy's and St. Thomas's Hospitals, King's College London, 9th Floor, Guy's Tower Wing, Guy's Hospital, London, SE1 9RT, UK
- Division of Cancer Studies, Department of Research Oncology, Faculty of Life Sciences and Medicine, King's College London, 3rd Floor Bermondsey Wing, Guy's Hospital, Great Maze Pond, London, SE1 9RT, UK
| | - Debra H Josephs
- Division of Genetics and Molecular Medicine, Faculty of Life Sciences and Medicine, St. John's Institute of Dermatology, King's College London, 9th Floor, Guy's Tower Wing, Guy's Hospital, London, SE1 9RT, UK
- NIHR Biomedical Research Centre at Guy's and St. Thomas's Hospitals, King's College London, 9th Floor, Guy's Tower Wing, Guy's Hospital, London, SE1 9RT, UK
- Division of Cancer Studies, Department of Research Oncology, Faculty of Life Sciences and Medicine, King's College London, 3rd Floor Bermondsey Wing, Guy's Hospital, Great Maze Pond, London, SE1 9RT, UK
| | - Sophia N Karagiannis
- Division of Genetics and Molecular Medicine, Faculty of Life Sciences and Medicine, St. John's Institute of Dermatology, King's College London, 9th Floor, Guy's Tower Wing, Guy's Hospital, London, SE1 9RT, UK
- NIHR Biomedical Research Centre at Guy's and St. Thomas's Hospitals, King's College London, 9th Floor, Guy's Tower Wing, Guy's Hospital, London, SE1 9RT, UK
| | - James F Spicer
- Division of Cancer Studies, Department of Research Oncology, Faculty of Life Sciences and Medicine, King's College London, 3rd Floor Bermondsey Wing, Guy's Hospital, Great Maze Pond, London, SE1 9RT, UK
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Bao H, Sun L, Zhu Y, Ran P, Hu W, Zhu K, Li B, Hou Y, Nie J, Gao T, Shan L, Du K, Zheng S, Zheng B, Xiao C, Du J. Lentinan produces a robust antidepressant-like effect via enhancing the prefrontal Dectin-1/AMPA receptor signaling pathway. Behav Brain Res 2017; 317:263-71. [PMID: 27693847 DOI: 10.1016/j.bbr.2016.09.062] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Revised: 09/24/2016] [Accepted: 09/27/2016] [Indexed: 12/22/2022]
Abstract
Lentinan (LNT) is an immune regulator and its potential and mechanism for the treatment of mood disorder is of our interest. Dectin-1 is a β-glucan (including LNT) receptor that regulates immune functions in many immune cell types. Cumulative evidence has suggested that the glutamatergic system seems to play an important role in the treatment of depression. Here, we studied the antidepressant-like effects of LNT and its therapeutical target in regulating the functions of AMPA receptors. We found that 60min treatment with LNT leads to a significant antidepressant-like effect in the tail suspension test (TST) and the forced swim test (FST) in mice. The antidepressant-like effects of LNT in TST and FST remained after 1day or 5days of injections. Additionally, LNT did not show a hyperactive effect in the open field test. Dectin-1 receptor levels were increased after LNT treatment for 5days and the specific Dectin-1 inhibitor laminarin was able to block the antidepressant-like effects of LNT. After 5days of treatment, LNT enhanced p-GluR1 (S845) in the prefrontal cortex (PFC); however, the total GluR1, GluR2, and GluR3 expression levels remained unchanged. We also found that the AMPA-specific blocker GYKI 52466 was able to block the antidepressant-like effects of LNT. This study identified LNT as a novel antidepressant with clinical potential and a new antidepressant mechanism for regulating prefrontal Dectin-1/AMPA receptor signaling.
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Yoshino S, Nishikawa K, Morita S, Takahashi T, Sakata K, Nagao J, Nemoto H, Murakami N, Matsuda T, Hasegawa H, Shimizu R, Yoshikawa T, Osanai H, Imano M, Naitoh H, Tanaka A, Tajiri T, Gochi A, Suzuki M, Sakamoto J, Saji S, Oka M. Randomised phase III study of S-1 alone versus S-1 plus lentinan for unresectable or recurrent gastric cancer (JFMC36-0701). Eur J Cancer 2016; 65:164-71. [PMID: 27501505 DOI: 10.1016/j.ejca.2016.06.012] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Revised: 05/17/2016] [Accepted: 06/16/2016] [Indexed: 12/14/2022]
Abstract
BACKGROUND Lentinan (LNT) is a purified β-1, 3-glucan that augments immune responses. The present study was conducted to assess the efficacy of LNT in combination with S-1 as a first-line treatment for unresectable or recurrent gastric cancer. PATIENTS AND METHODS Eligible patients were randomly assigned to receive S-1 alone or S-1 plus LNT. The primary end-point was overall survival (OS). Secondary end-points were time-to-treatment failure (TTF), overall response rate (ORR), safety, quality of life (QOL), and biomarker. The percentages of LNT-binding monocytes in peripheral blood prior to treatment were analysed for the biomarker assessment. RESULTS One hundred and fifty-four and 155 patients were randomly assigned to receive S-1 alone or S-1 plus LNT, respectively. The median OS was 13.8 and 9.9 months (P = 0.208), the median TTF was 4.3 and 2.6 months (P < 0.001), the ORR was 22.3% and 18.7% for the S-1 and S-1 plus LNT groups, respectively. The incidences of haematologic and non-haematologic adverse events were similar, and no significant changes in QOL scores were observed during the treatment in both groups. In a subpopulation of patients with LNT-binding monocytes ≥2%, patients who received more than two cycles of chemotherapy showed a longer survival time in the S-1 plus LNT group. CONCLUSIONS OS did not improve and TTF was significantly worse in the S-1 plus LNT group as compared with the S-1-only group. This study showed no efficacy of LNT when combined with S-1 treatment in patients with unresectable or recurrent gastric cancer. CLINICAL TRIAL REGISTRATION ID NUMBER UMIN 000000574.
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Affiliation(s)
- Shigefumi Yoshino
- Department of Digestive Surgery and Surgical Oncology, Yamaguchi University Graduate School of Medicine, Ube, Japan.
| | | | - Satoshi Morita
- Department of Biomedical Statistics and Bioinformatics, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Tsuyoshi Takahashi
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Koichiro Sakata
- Department of Digestive Surgery, Shimonoseki Medical Center, Shimonoseki, Japan
| | - Jiro Nagao
- Department of Surgery, Toho University Omori Medical Center, Tokyo, Japan
| | - Hiroshi Nemoto
- Department of Gastroenterological and General Surgery, School of Medicine, Showa University Fujigaoka Hospital, Yokohama, Japan
| | - Nozomu Murakami
- Department of Palliative Care and Surgery, Koseiren Takaoka Hospital, Takaoka, Japan
| | - Takeru Matsuda
- Department of Surgery, National Hospital Organization Kobe Medical Center, Kobe, Japan
| | | | - Ryoichi Shimizu
- Department of Surgery, Ogori Daiichi General Hospital, Yamaguchi, Japan
| | - Takaki Yoshikawa
- Department of Gastrointestinal Surgery, Kanagawa Cancer Center, Yokohama, Japan
| | - Hiroyuki Osanai
- Department of Surgery, Sapporo Geka Kinen Hospital, Sapporo, Japan
| | - Motohiro Imano
- Department of Surgery, Kinki University Faculty of Medicine, Osakasayama, Japan
| | - Hiroshi Naitoh
- Department of Surgery, Japan Community Health Care Organization Gunma Chuo Hospital, Maebashi, Japan
| | | | | | - Akira Gochi
- Digestive Tract Surgery, Okayama University Hospital, Okayama, Japan
| | - Michinari Suzuki
- Department of Surgery, Shunan City Shinnanyo Hospital, Shunan, Japan
| | - Junichi Sakamoto
- Japanese Foundation for Multidisciplinary Treatment of Cancer, Tokyo, Japan
| | - Shigetoyo Saji
- Japanese Foundation for Multidisciplinary Treatment of Cancer, Tokyo, Japan
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Wang SX, Liu QY, Li Y. Lentinan ameliorates burn sepsis by attenuating CD4 + CD25 + Tregs. Burns 2016; 42:1513-1521. [PMID: 27156806 DOI: 10.1016/j.burns.2016.04.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Revised: 04/02/2016] [Accepted: 04/04/2016] [Indexed: 12/15/2022]
Abstract
AIM The aim of our study was to investigate the effect of lentinan on regulatory T cells (Tregs) in sepsis, especially on the generation of interleukin (IL)-10 via regulation of Erk-FoxO1 signaling. METHODS BalB/c mice were randomized into five groups: sham group, the group with burns plus Pseudomonas aeruginosa infection, and the groups with burns plus P. aeruginosa infection administered 40, 100, and 250mg/kg of lentinan. The mice were sacrificed on postburn days 0, 1, 2, 3, and 4, respectively, with eight animals per group at each time point. The peripheral blood CD4+ CD25+ Tregs and CD4+ T cells were isolated using magnetic microbeads. The phenotypes were analyzed by flow cytometry. The cytokine levels were determined with enzyme-linked immunosorbent assay (ELISA). Signal transduction was studied by Western blot, quantitative polymerase chain reaction (qPCR), and luciferase assay. RESULTS The IL-10-producing capacity of CD4+ CD25+ Tregs was significantly enhanced in the group with burns plus P. aeruginosa infection, compared with the sham group. Administration of lentinan significantly decreased IL-10 production and FoxP3 expression of CD4+ CD25+ Tregs. The proliferative activities of CD4+ T cells, however, were restored. Lentinan decreased lipopolysaccharide (LPS)-induced IL-10 production in the Tregs isolated from burned mice. In addition, lentinan attenuated LPS-stimulated Erk-FoxO1 activation. CONCLUSIONS Lentinan may improve the outcome of postburn sepsis by suppressing LPS-triggered Erk-FoxO1 activation. Consequently, the hyperfunction of CD4+ CD25+ Tregs is inhibited, leading to a shift in the inflammatory status from Th2 to Th1 in postburn sepsis.
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Affiliation(s)
- Shou-Xing Wang
- Department of General Surgery, The Fourth Affiliated Hospital of Hebei Medical University, Shijiazhuang, Hebei 050011, PR China; Department of General Surgery, First Hospital of Handan, Hebei Province 056000, PR China
| | - Qing-Yang Liu
- Department of Nephrology, China Meitan General Hospital, Beijing 100028, PR China
| | - Yong Li
- Department of General Surgery, The Fourth Affiliated Hospital of Hebei Medical University, Shijiazhuang, Hebei 050011, PR China.
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Shim D, Park SG, Kim K, Bae W, Lee GW, Ha BS, Ro HS, Kim M, Ryoo R, Rhee SK, Nou IS, Koo CD, Hong CP, Ryu H. Whole genome de novo sequencing and genome annotation of the world popular cultivated edible mushroom, Lentinula edodes. J Biotechnol 2016; 223:24-5. [PMID: 26924240 DOI: 10.1016/j.jbiotec.2016.02.032] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Accepted: 02/24/2016] [Indexed: 12/22/2022]
Abstract
Lentinula edodes, the popular shiitake mushroom, is one of the most important cultivated edible mushrooms. It is used as a food and for medicinal purposes. Here, we present the 46.1 Mb draft genome of L. edodes, comprising 13,028 predicted gene models. The genome assembly consists of 31 scaffolds. Gene annotation provides key information about various signaling pathways and secondary metabolites. This genomic information should help establish the molecular genetic markers for MAS/MAB and increase our understanding of the genome structure and function.
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Affiliation(s)
- Donghwan Shim
- Department of Forest Genetic Resources, National Institute of Forest Science, Suwon 16631, Republic of Korea
| | - Sin-Gi Park
- Theragen Etex Bio Institute, Suwon 16229, Republic of Korea
| | - Kangmin Kim
- Division of Biotechnology, College of Environmental and Bioresource Sciences, Chonbuk National University, Iksan 54596, Republic of Korea
| | - Wonsil Bae
- Department of Biology, Chungbuk National University, Cheongju 28644, Republic of Korea
| | - Gir Won Lee
- Theragen Etex Bio Institute, Suwon 16229, Republic of Korea
| | - Byeong-Suk Ha
- Division of Applied Life Science and Research Institute of Life Sciences, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Hyeon-Su Ro
- Division of Applied Life Science and Research Institute of Life Sciences, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Myungkil Kim
- Division of Wood Chemistry & Microbiology, National Institute of Forest Science, Seoul 02455, Republic of Korea
| | - Rhim Ryoo
- Division of Wood Chemistry & Microbiology, National Institute of Forest Science, Seoul 02455, Republic of Korea
| | - Sung-Keun Rhee
- Department of Microbiology, Chungbuk National University, Cheongju 28644, Republic of Korea
| | - Ill-Sup Nou
- Department of Horticulture, Sunchon National University, Suncheon, Republic of Korea
| | - Chang-Duck Koo
- Department of Forest Science, Chungbuk National University, Cheongju 28644, Republic of Korea
| | - Chang Pyo Hong
- Theragen Etex Bio Institute, Suwon 16229, Republic of Korea.
| | - Hojin Ryu
- Department of Biology, Chungbuk National University, Cheongju 28644, Republic of Korea.
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Abstract
Despite the longstanding use of dried mushrooms and mushroom extracts in traditional Chinese medicine, there is no scientific evidence to support the effectiveness of these preparations in the treatment of human disease. Consumers should evaluate assertions made by companies about the miraculous properties of medicinal mushrooms very critically. The potential harm caused by these natural products is another important consideration. In a more positive vein, the presence of potent toxins and neurotropic compounds in basidiomycete fruit bodies suggests that secondary metabolites with useful pharmacological properties are widespread in these fungi. Major investment in controlled experiments and objective clinical trials is necessary to develop this natural pharmacopeia.
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Affiliation(s)
- Nicholas P Money
- Western Program and Department of Biology, Miami University, Oxford, OH 45056, USA.
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Lin BS, Dai Y. Effects of lentinan in combination with FOLFOX4 regimen on serum vascular endothelial growth factor, interleukin-10 and quality of life in patients with medium and advanced gastric cancer. Shijie Huaren Xiaohua Zazhi 2015; 23:5372-5376. [DOI: 10.11569/wcjd.v23.i33.5372] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
AIM: To investigate the effects of lentinan in combination with FOLFOX4 regimen on serum vascular endothelial growth factor (VEGF), interleukin-10 (IL-10) and quality of life in patients with medium and advanced gastric cancer.
METHODS: One hundred and sixteen patients with medium and advanced gastric cancer treated at the Affiliated Hospital of the University of South China from October 2013 to October 2014 were divided into a control group (n = 56) and an observation group (n = 60). The control group was given the FOLFOX4 regimen (oxaliplatin + calcium folinate + 5-fluorouracil) alone, and the observation group was given lentinan plus the FOLFOX4 regimen. After the course of treatment, short-term curative efficacy, toxic side effects, levels of VEGF and IL-10, and quality of life were compared between the two groups.
RESULTS: After the course of treatment, the short-term curative rate in the control group and observation group was 55.4% and 65.0%, respectively, which had no statistical difference (P > 0.05). During treatment, the incidences of grades Ⅰ-Ⅱ neutropenia and grades Ⅰ-Ⅱ myelosuppression in the observation group were statistically lower than those in the control group (P < 005 for both), while the incidences of gastrointestinal reaction and liver function damage in the two groups were statistically same (P > 0.05 for both). After treatment, in comparison with the control group, serum levels of VEGF and IL-10 in the observation group were statistically lower than those in the control group (P < 0.05 for both). At the six-month follow-up, scores of subjective symptom, psychological states, daily life and social activities and total score in the observation group were statistically higher than those in the control group (P < 0.05 for all), while scores of physiological status in the two groups were statistically same (P > 0.05).
CONCLUSION: Combined treatment of lentinan and FOLFOX4 regimen for medium and advanced gastric cancer has a relatively high short-term curative rate and can significantly reduce the incidence of toxic side effects, decrease the levels of VEGF and IL-10, and improve quality of life.
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Wang J, Yu G, Li Y, Shen L, Qian Y, Yang J, Wang F. Inhibitory effects of sulfated lentinan with different degree of sulfation against tobacco mosaic virus (TMV) in tobacco seedlings. Pestic Biochem Physiol 2015; 122:38-43. [PMID: 26071805 DOI: 10.1016/j.pestbp.2014.12.027] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2014] [Revised: 12/24/2014] [Accepted: 12/26/2014] [Indexed: 06/04/2023]
Abstract
The inhibitory effects of sulfated lentinan with different degrees of sulfation against tobacco mosaic virus (TMV) and the underlying mechanism were investigated. The results indicated that plants treated with increasing concentrations of sulfated lentinan, with increasing numbers of treatments and with increasing time after treatment had a decrease in the number of necrotic lesions, indicating a long-term protection against TMV that mimics vaccination. In addition, the levels of TMV-capsid protein (CP) transcripts decreased in distant leaves, indicating that sulfated lentinan induces systemic protection against TMV. The activities of the defense enzymes phenylalanine ammonia lyase (PAL) and lipoxygenase (LOX) and the amounts of several phenylpropanoid compounds (PPCs) were measured in control and treated plants without infection. A progressive increase in PAL activity was observed with increasing time after treatment, together with the accumulation of free and conjugated PPCs. In contrast, LOX activity remained unchanged. Interestingly, the increase in PAL activity showed a linear correlation with the decrease in necrotic lesions and the decrease in TMV-CP transcript level. Thus, sulfated lentinan induced systemic and long-term protection against TMV in tobacco plants that is determined, at least in part, by a sustained activation of PAL and the accumulation of PPCs with potential antiviral activity.
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Affiliation(s)
- Jie Wang
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, 11 Keyuanjing Si Rd., Laoshan District, Qingdao, China
| | - Guanghong Yu
- Baoshan Oriental Tobacco Company Ltd., Yunnan, China
| | - Yihong Li
- Tobacco Research Institute of Hubei Province, China
| | - Lili Shen
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, 11 Keyuanjing Si Rd., Laoshan District, Qingdao, China
| | - Yumei Qian
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, 11 Keyuanjing Si Rd., Laoshan District, Qingdao, China
| | - Jinguang Yang
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, 11 Keyuanjing Si Rd., Laoshan District, Qingdao, China.
| | - Fenglong Wang
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, 11 Keyuanjing Si Rd., Laoshan District, Qingdao, China.
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