1
|
Bai D, Kim H, Wang P. Development of semisynthetic saponin immunostimulants. Med Chem Res 2024; 33:1292-1306. [PMID: 39132259 PMCID: PMC11315725 DOI: 10.1007/s00044-024-03227-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2024] [Accepted: 04/20/2024] [Indexed: 08/13/2024]
Abstract
Many natural saponins demonstrate immunostimulatory adjuvant activities, but they also have some inherent drawbacks that limit their clinical use. To overcome these limitations, extensive structure-activity-relationship (SAR) studies have been conducted. The SAR studies of QS-21 and related saponins reveal that their respective fatty side chains are crucial for potentiating a strong cellular immune response. Replacing the hydrolytically unstable ester side chain in the C28 oligosaccharide domain with an amide side chain in the same domain or in the C3 branched trisaccharide domain is a viable approach for generating robust semisynthetic saponin immunostimulants. Given the striking resemblance of natural momordica saponins (MS) I and II to the deacylated Quillaja Saponaria (QS) saponins (e.g., QS-17, QS-18, and QS-21), incorporating an amide side chain into the more sustainable MS, instead of deacylated QS saponins, led to the discovery of MS-derived semisynthetic immunostimulatory adjuvants VSA-1 and VSA-2. This review focuses on the authors' previous work on SAR studies of QS and MS saponins.
Collapse
Affiliation(s)
- Di Bai
- Department of Chemistry, University of Alabama at Birmingham, Birmingham, AL AL35294 USA
| | - Hyunjung Kim
- Department of Chemistry, University of Alabama at Birmingham, Birmingham, AL AL35294 USA
| | - Pengfei Wang
- Department of Chemistry, University of Alabama at Birmingham, Birmingham, AL AL35294 USA
| |
Collapse
|
2
|
Singh R, Sharma R, Varshney R, Mal G, Ghosh M, Singh B. Evaluation of immunological adjuvant activities of saponin rich fraction from the fruits of Asparagus adscendens Roxb. with less adverse reactions. Drug Chem Toxicol 2023; 46:557-565. [PMID: 35484852 DOI: 10.1080/01480545.2022.2067170] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The hemolytic activity, in vitro as well as in vivo toxicity, and immunomodulatory potential of saponins-rich fraction of Asparagus adscendens Roxb. fruit (AA-SRF) have been assessed in this study in order to explore AA-SRF as an alternative safer adjuvant to standard Quil-A saponin. The AA-SRF showed lower hemolytic activity (HD50 = 301.01 ± 1.63 µg/ml) than Quil-A (HD50 = 17.15 ± 2.12 µg/ml). The sulforhodamine B assay also revealed that AA-SRF was less toxic to VERO cells (IC50≥200 ± 4.32 µg/ml) than Quil-A (IC50 = 60 ± 2.78 µg/ml). The AA-SRF did not lead to mortality in mice up to 1.6 mg and was much safer than Quil-A for in vivo use. Conversely, mice were subcutaneously immunized with OVA 100 μg alone or along with Alum (200 μg) or Quil-A (10 μg) or AA-SRF (50 μg/100 μg/200 μg) on days 0 and 14. The AA-SRF at 100 μg dose best supported the LPS/Con A primed splenocyte proliferation activity, elevated the serum OVA-specific total IgG antibody, IL-12, CD4 titer and upsurged CD3/CD19 expression in spleen as well as lymph node sections which in turn advocated its adjuvant potential. Thus, AA-SRF can be further studied for use as a safe alternative adjuvant in vaccines.
Collapse
Affiliation(s)
- Rahul Singh
- Animal Experimental Pathology, Central Ayurvedic Research Institute for Drug Development, CCRAS, Ministry of Ayush, Kolkata, India
| | - Rinku Sharma
- Disease Investigation Laboratory, ICAR-Indian Veterinary Research Institute, Regional Station, Palampur, India
| | - Rajat Varshney
- Department of Veterinary Microbiology, FVAS, IAS, RGSC, Banaras Hindu University, Mirzapur, India
| | - Gorakh Mal
- Disease Investigation Laboratory, ICAR-Indian Veterinary Research Institute, Regional Station, Palampur, India
| | - Mayukh Ghosh
- Department of Veterinary Physiology and Biochemistry, FVAS, IAS, RGSC, Banaras Hindu University, Mirzapur, India
| | - Birbal Singh
- Disease Investigation Laboratory, ICAR-Indian Veterinary Research Institute, Regional Station, Palampur, India
| |
Collapse
|
3
|
Chen K, Wang N, Zhang X, Wang M, Liu Y, Shi Y. Potentials of saponins-based adjuvants for nasal vaccines. Front Immunol 2023; 14:1153042. [PMID: 37020548 PMCID: PMC10067588 DOI: 10.3389/fimmu.2023.1153042] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Accepted: 03/07/2023] [Indexed: 03/22/2023] Open
Abstract
Respiratory infections are a major public health concern caused by pathogens that colonize and invade the respiratory mucosal surface. Nasal vaccines have the advantage of providing protection at the primary site of pathogen infection, as they induce higher levels of mucosal secretory IgA antibodies and antigen-specific T and B cell responses. Adjuvants are crucial components of vaccine formulation that enhance the immunogenicity of the antigen to confer long-term and effective protection. Saponins, natural glycosides derived from plants, shown potential as vaccine adjuvants, as they can activate the mammalian immune system. Several licensed human vaccines containing saponins-based adjuvants administrated through intramuscular injection have demonstrated good efficacy and safety. Increasing evidence suggests that saponins can also be used as adjuvants for nasal vaccines, owing to their safety profile and potential to augment immune response. In this review, we will discuss the structure-activity-relationship of saponins, their important role in nasal vaccines, and future prospects for improving their efficacy and application in nasal vaccine for respiratory infection.
Collapse
Affiliation(s)
- Kai Chen
- Department of Radiology and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, China
- West China Biopharmaceutical Research Institute, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Ning Wang
- West China Biopharmaceutical Research Institute, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Xiaomin Zhang
- West China Biopharmaceutical Research Institute, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Meng Wang
- West China Biopharmaceutical Research Institute, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Yanyu Liu
- West China Biopharmaceutical Research Institute, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Yun Shi
- West China Biopharmaceutical Research Institute, West China Hospital, Sichuan University, Chengdu, Sichuan, China
- *Correspondence: Yun Shi,
| |
Collapse
|
4
|
Valiullina ZR, Khasanova LS, Miftakhov MS. Synthesis of 2-(16,17-Epoxy-3β,20-dihydroxypregn-5-en-20-yl)-1,3-dithiane from Diosgenin. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2022. [DOI: 10.1134/s1070428022110124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
|
5
|
Shivatare SS, Shivatare VS, Wong CH. Glycoconjugates: Synthesis, Functional Studies, and Therapeutic Developments. Chem Rev 2022; 122:15603-15671. [PMID: 36174107 PMCID: PMC9674437 DOI: 10.1021/acs.chemrev.1c01032] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Glycoconjugates are major constituents of mammalian cells that are formed via covalent conjugation of carbohydrates to other biomolecules like proteins and lipids and often expressed on the cell surfaces. Among the three major classes of glycoconjugates, proteoglycans and glycoproteins contain glycans linked to the protein backbone via amino acid residues such as Asn for N-linked glycans and Ser/Thr for O-linked glycans. In glycolipids, glycans are linked to a lipid component such as glycerol, polyisoprenyl pyrophosphate, fatty acid ester, or sphingolipid. Recently, glycoconjugates have become better structurally defined and biosynthetically understood, especially those associated with human diseases, and are accessible to new drug, diagnostic, and therapeutic developments. This review describes the status and new advances in the biological study and therapeutic applications of natural and synthetic glycoconjugates, including proteoglycans, glycoproteins, and glycolipids. The scope, limitations, and novel methodologies in the synthesis and clinical development of glycoconjugates including vaccines, glyco-remodeled antibodies, glycan-based adjuvants, glycan-specific receptor-mediated drug delivery platforms, etc., and their future prospectus are discussed.
Collapse
Affiliation(s)
- Sachin S Shivatare
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Vidya S Shivatare
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Chi-Huey Wong
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
- Genomics Research Center, Academia Sinica, Taipei 115, Taiwan
| |
Collapse
|
6
|
Marciani DJ. Effects of N-acylation on the immune adjuvanticity of analogs of the Quillaja saponins derivative GPI-0100. Vaccine 2022; 40:4169-4173. [DOI: 10.1016/j.vaccine.2022.05.084] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Revised: 04/06/2022] [Accepted: 05/28/2022] [Indexed: 10/18/2022]
|
7
|
Dong S, Guo X, Han F, He Z, Wang Y. Emerging role of natural products in cancer immunotherapy. Acta Pharm Sin B 2022; 12:1163-1185. [PMID: 35530162 PMCID: PMC9069318 DOI: 10.1016/j.apsb.2021.08.020] [Citation(s) in RCA: 92] [Impact Index Per Article: 46.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 06/05/2021] [Accepted: 08/17/2021] [Indexed: 12/12/2022] Open
Abstract
Cancer immunotherapy has become a new generation of anti-tumor treatment, but its indications still focus on several types of tumors that are sensitive to the immune system. Therefore, effective strategies that can expand its indications and enhance its efficiency become the key element for the further development of cancer immunotherapy. Natural products are reported to have this effect on cancer immunotherapy, including cancer vaccines, immune-check points inhibitors, and adoptive immune-cells therapy. And the mechanism of that is mainly attributed to the remodeling of the tumor-immunosuppressive microenvironment, which is the key factor that assists tumor to avoid the recognition and attack from immune system and cancer immunotherapy. Therefore, this review summarizes and concludes the natural products that reportedly improve cancer immunotherapy and investigates the mechanism. And we found that saponins, polysaccharides, and flavonoids are mainly three categories of natural products, which reflected significant effects combined with cancer immunotherapy through reversing the tumor-immunosuppressive microenvironment. Besides, this review also collected the studies about nano-technology used to improve the disadvantages of natural products. All of these studies showed the great potential of natural products in cancer immunotherapy.
Collapse
Key Words
- AKT, alpha-serine/threonine-specific protein kinase
- Adoptive immune-cells transfer immunotherapy
- B2M, beta-2-microglobulin
- BMDCs, bone marrow dendritic cells
- BPS, basil polysaccharide
- BTLA, B- and T-lymphocyte attenuator
- CAFs, cancer-associated fibroblasts
- CCL22, C–C motif chemokine 22
- CIKs, cytokine-induced killer cells
- COX-2, cyclooxygenase-2
- CRC, colorectal cancer
- CTL, cytotoxic T cell
- CTLA-4, cytotoxic T lymphocyte antigen-4
- Cancer immunotherapy
- Cancer vaccines
- DAMPs, damage-associated molecular patterns
- DCs, dendritic cells
- FDA, US Food and Drug Administration
- HCC, hepatocellular carcinoma
- HER-2, human epidermal growth factor receptor-2
- HIF-1α, hypoxia-inducible factor-1α
- HMGB1, high-mobility group box 1
- HSPs, heat shock proteins
- ICD, Immunogenic cell death
- ICTs, immunological checkpoints
- IFN-γ, interferon γ
- IL-10, interleukin-10
- Immuno-check points
- Immunosuppressive microenvironment
- LLC, Lewis lung cancer
- MDSCs, myeloid-derived suppressor cells
- MHC, major histocompatibility complex class
- MITF, melanogenesis associated transcription factor
- MMP-9, matrix metalloprotein-9
- Mcl-1, myeloid leukemia cell differentiation protein 1
- NF-κB, nuclear factor kappa-light-chain-enhancer of activated B cells
- NKTs, natural killer T cells
- NSCLC, non-small cell lung cancer
- Natural products
- OVA, ovalbumin
- PD-1, programmed death-1
- PD-L1, programmed death receptor ligand 1
- PGE-2, prostaglandin E2
- PI3K, phosphoinositide 3-kinase
- ROS, reactive oxygen species
- STAT3, signal transducer and activator of transcription 3
- TAMs, tumor-associated macrophages
- TAP, transporters related with antigen processing
- TGF-β, transforming growth factor-β
- TILs, tumor infiltration lymphocytes
- TLR, Toll-like receptor
- TNF-α, tumor necrosis factor α
- TSA, tumor specific antigens
- Teffs, effective T cells
- Th1, T helper type 1
- Tregs, regulatory T cells
- VEGF, vascular endothelial growth factor
- bFGF, basic fibroblast growth factor
- mTOR, mechanistic target of rapamycin
Collapse
Affiliation(s)
- Songtao Dong
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Xiangnan Guo
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Fei Han
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Zhonggui He
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Yongjun Wang
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, China
| |
Collapse
|
8
|
Natural and Synthetic Saponins as Vaccine Adjuvants. Vaccines (Basel) 2021; 9:vaccines9030222. [PMID: 33807582 PMCID: PMC8001307 DOI: 10.3390/vaccines9030222] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 03/01/2021] [Accepted: 03/02/2021] [Indexed: 12/20/2022] Open
Abstract
Saponin adjuvants have been extensively studied for their use in veterinary and human vaccines. Among them, QS-21 stands out owing to its unique profile of immunostimulating activity, inducing a balanced Th1/Th2 immunity, which is valuable to a broad scope of applications in combating various microbial pathogens, cancers, and other diseases. It has recently been approved for use in human vaccines as a key component of combination adjuvants, e.g., AS01b in Shingrix® for herpes zoster. Despite its usefulness in research and clinic, the cellular and molecular mechanisms of QS-21 and other saponin adjuvants are poorly understood. Extensive efforts have been devoted to studies for understanding the mechanisms of QS-21 in different formulations and in different combinations with other adjuvants, and to medicinal chemistry studies for gaining mechanistic insights and development of practical alternatives to QS-21 that can circumvent its inherent drawbacks. In this review, we briefly summarize the current understandings of the mechanism underlying QS-21’s adjuvanticity and the encouraging results from recent structure-activity-relationship (SAR) studies.
Collapse
|
9
|
Han C, Wang X, Zhang D, Wei Y, Cui Y, Shi W, Bao Y. Synergistic use of florfenicol and Salvia miltiorrhiza polysaccharide can enhance immune responses in broilers. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 210:111825. [PMID: 33412284 DOI: 10.1016/j.ecoenv.2020.111825] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 11/23/2020] [Accepted: 12/17/2020] [Indexed: 06/12/2023]
Abstract
To explore the effect of florfenicol (FFC) combined with Salvia miltiorrhiza polysaccharide (SMPs) on immune function of Broilers. One hundred and twenty-one-day-old chicks were chosen and divided into 6 groups. The group A received standard basal diet only, the group B received a basal diet with FFC (0.15 g/L diet), and the group C, D, E received a basal diet with FFC (0.15 g/L diet) and SMPs (1.25 g/L, 2.5 g/L, 5 g/L diet),the group F received a basal diet with SMPs (5 g/L diet). FFC can significantly inhibit the growth performance of broilers, but has no significant damage to the immune function of broilers. The combination of FFC and SMPs can improve the growth performance of broilers, increase the number of leukocyte subtypes in blood (P < 0.05), increase the number of Newcastle disease (ND) and avian influenza (AI) antibodies in blood, the number of immunoglobulins, and the content of cytokines (P < 0.05). In addition, it significantly improve the lymphocyte conversion rate of broiler peripheral blood (P < 0.05). So that, synergistic use of FFC and SMPs can enhance immune responses in Broilers.
Collapse
Affiliation(s)
- Chao Han
- College of Traditional Chinese Veterinary Medicine, Agricultural University of Hebei, Baoding 071001, China
| | - Xiao Wang
- College of Traditional Chinese Veterinary Medicine, Agricultural University of Hebei, Baoding 071001, China
| | - Di Zhang
- College of Traditional Chinese Veterinary Medicine, Agricultural University of Hebei, Baoding 071001, China; Hebei Provincial Engineering Center for Chinese Veterinary Herbal Medicine, Baoding 071001, China
| | - Yuanyuan Wei
- College of Traditional Chinese Veterinary Medicine, Agricultural University of Hebei, Baoding 071001, China
| | - Yuqing Cui
- College of Traditional Chinese Veterinary Medicine, Agricultural University of Hebei, Baoding 071001, China
| | - Wanyu Shi
- College of Traditional Chinese Veterinary Medicine, Agricultural University of Hebei, Baoding 071001, China; Hebei Provincial Engineering Center for Chinese Veterinary Herbal Medicine, Baoding 071001, China.
| | - Yongzhan Bao
- College of Traditional Chinese Veterinary Medicine, Agricultural University of Hebei, Baoding 071001, China; Hebei Provincial Engineering Center for Chinese Veterinary Herbal Medicine, Baoding 071001, China.
| |
Collapse
|
10
|
Natural and synthetic carbohydrate-based vaccine adjuvants and their mechanisms of action. Nat Rev Chem 2021; 5:197-216. [PMID: 37117529 PMCID: PMC7829660 DOI: 10.1038/s41570-020-00244-3] [Citation(s) in RCA: 116] [Impact Index Per Article: 38.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/03/2020] [Indexed: 01/31/2023]
Abstract
Modern subunit vaccines based on homogeneous antigens offer more precise targeting and improved safety compared with traditional whole-pathogen vaccines. However, they are also less immunogenic and require an adjuvant to increase the immunogenicity of the antigen and potentiate the immune response. Unfortunately, few adjuvants have sufficient potency and low enough toxicity for clinical use, highlighting the urgent need for new, potent and safe adjuvants. Notably, a number of natural and synthetic carbohydrate structures have been used as adjuvants in clinical trials, and two have recently been approved in human vaccines. However, naturally derived carbohydrate adjuvants are heterogeneous, difficult to obtain and, in some cases, unstable. In addition, their molecular mechanisms of action are generally not fully understood, partly owing to the lack of tools to elucidate their immune-potentiating effects, thus hampering the rational development of optimized adjuvants. To address these challenges, modification of the natural product structure using synthetic chemistry emerges as an attractive approach to develop well-defined, improved carbohydrate-containing adjuvants and chemical probes for mechanistic investigation. This Review describes selected examples of natural and synthetic carbohydrate-based adjuvants and their application in synthetic self-adjuvanting vaccines, while also discussing current understanding of their molecular mechanisms of action.
Collapse
|
11
|
Wang P, Ding X, Kim H, Michalek SM, Zhang P. Structural Effect on Adjuvanticity of Saponins. J Med Chem 2020; 63:3290-3297. [PMID: 32101001 DOI: 10.1021/acs.jmedchem.9b02063] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
We have prepared a number of saponin-based vaccine adjuvant candidates. These unnatural saponins have a different terminal-functionalized side chain incorporated into the glucuronic acid unit that is attached to a triterpenoid core at its C3 position. The semisynthetic saponin adjuvants have shown significantly different immunostimulatory activities, suggesting that the structure of the side chain, triterpenoid core, and oligosaccharide domain together orchestrate saponin adjuvant's potentiation of immune responses. Among these new adjuvant candidates, VSA-2 (5b), a derivative of Momordica saponin (MS) II, showed consistent enhancement of immunoglobulin G2a (IgG2a) production when it was in formulation with either ovalbumin or recombinant hemagglutinin B (rHagB) antigen. With rHagB antigen, it induced a significantly higher IgG2a response than the positive control GPI-0100, a well-studied semisynthetic saponin adjuvant mixture derived from Quillaja saponaria Molina saponins, known for its ability to induce a balanced Th1/Th2 immunity. These results confirm that Momordica saponins are a viable natural source to provide potent saponin adjuvants after simple chemical derivatization and identify VSA-2 (5b) as another MS-based promising immunostimulant lead owing to its distinctive ability in potentiating the IgG2a response.
Collapse
Affiliation(s)
- Pengfei Wang
- Department of Chemistry, University of Alabama at Birmingham, 901 14th Street South, Birmingham, Alabama 35294, United States
| | - Xiong Ding
- Department of Chemistry, University of Alabama at Birmingham, 901 14th Street South, Birmingham, Alabama 35294, United States
| | - Hyunjung Kim
- Department of Chemistry, University of Alabama at Birmingham, 901 14th Street South, Birmingham, Alabama 35294, United States
| | - Suzanne M Michalek
- Department of Microbiology, University of Alabama at Birmingham, 901 14th Street South, Birmingham, Alabama 35294, United States
| | - Ping Zhang
- Department of Pediatric Dentistry, University of Alabama at Birmingham, 901 14th Street South, Birmingham, Alabama 35294, United States
| |
Collapse
|
12
|
Wang P, Ding X, Kim H, Škalamera Đ, Michalek SM, Zhang P. Vaccine Adjuvants Derivatized from Momordica Saponins I and II. J Med Chem 2019; 62:9976-9982. [PMID: 31657920 DOI: 10.1021/acs.jmedchem.9b01511] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
We have derivatized Momordica saponins (MS) I and II through their coupling at C3 glucuronic acid site with dodecylamine. The derivatives show significantly different immunostimulant activity profiles from their respective natural parent saponins. In particular, adjuvant VSA-1 (5), the derivative of MS I, potentiates a significantly higher IgG2a responose than the corresponding natural product. Its IgG1 and IgG2a production is similar to that of GPI-0100, indicating a potential mixed and antigen-specific Th1/Th2 immune response, which is different from the Th2 immunity induced by the natural saponin MS I. In addition, toxicity evaluations show that adjuvant VSA-1 (5) is much less toxic than the widely used natural saponin mixture Quil A. These results prove that derivatizing Momordica saponins can be a viable way for easy access to structurally defined saponin immunostimulants with favorable adjvuant activity and low toxicity.
Collapse
|
13
|
Mestrom L, Przypis M, Kowalczykiewicz D, Pollender A, Kumpf A, Marsden SR, Bento I, Jarzębski AB, Szymańska K, Chruściel A, Tischler D, Schoevaart R, Hanefeld U, Hagedoorn PL. Leloir Glycosyltransferases in Applied Biocatalysis: A Multidisciplinary Approach. Int J Mol Sci 2019; 20:ijms20215263. [PMID: 31652818 PMCID: PMC6861944 DOI: 10.3390/ijms20215263] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 10/17/2019] [Accepted: 10/18/2019] [Indexed: 01/13/2023] Open
Abstract
Enzymes are nature’s catalyst of choice for the highly selective and efficient coupling of carbohydrates. Enzymatic sugar coupling is a competitive technology for industrial glycosylation reactions, since chemical synthetic routes require extensive use of laborious protection group manipulations and often lack regio- and stereoselectivity. The application of Leloir glycosyltransferases has received considerable attention in recent years and offers excellent control over the reactivity and selectivity of glycosylation reactions with unprotected carbohydrates, paving the way for previously inaccessible synthetic routes. The development of nucleotide recycling cascades has allowed for the efficient production and reuse of nucleotide sugar donors in robust one-pot multi-enzyme glycosylation cascades. In this way, large glycans and glycoconjugates with complex stereochemistry can be constructed. With recent advances, LeLoir glycosyltransferases are close to being applied industrially in multi-enzyme, programmable cascade glycosylations.
Collapse
Affiliation(s)
- Luuk Mestrom
- Department of Biotechnology, Delft University of Technology, Section Biocatalysis, Van der Maasweg 9, 2629 HZ Delft, The Netherlands.
| | - Marta Przypis
- Department of Organic Chemistry, Bioorganic Chemistry and Biotechnology, Silesian University of Technology, B. Krzywoustego 4, 44-100 Gliwice, Poland.
- Biotechnology Center, Silesian University of Technology, B. Krzywoustego 8, 44-100 Gliwice, Poland.
| | - Daria Kowalczykiewicz
- Department of Organic Chemistry, Bioorganic Chemistry and Biotechnology, Silesian University of Technology, B. Krzywoustego 4, 44-100 Gliwice, Poland.
- Biotechnology Center, Silesian University of Technology, B. Krzywoustego 8, 44-100 Gliwice, Poland.
| | - André Pollender
- Environmental Microbiology, Institute of Biosciences, TU Bergakademie Freiberg, Leipziger Str. 29, 09599 Freiberg, Germany.
| | - Antje Kumpf
- Environmental Microbiology, Institute of Biosciences, TU Bergakademie Freiberg, Leipziger Str. 29, 09599 Freiberg, Germany.
- Microbial Biotechnology, Faculty of Biology & Biotechnology, Ruhr-Universität Bochum, Universitätsstr. 150, 44780 Bochum, Germany.
| | - Stefan R Marsden
- Department of Biotechnology, Delft University of Technology, Section Biocatalysis, Van der Maasweg 9, 2629 HZ Delft, The Netherlands.
| | - Isabel Bento
- EMBL Hamburg, Notkestraβe 85, 22607 Hamburg, Germany.
| | - Andrzej B Jarzębski
- Institute of Chemical Engineering, Polish Academy of Sciences, Bałtycka 5, 44-100 Gliwice, Poland.
| | - Katarzyna Szymańska
- Department of Chemical and Process Engineering, Silesian University of Technology, Ks. M. Strzody 7, 44-100 Gliwice, Poland.
| | | | - Dirk Tischler
- Environmental Microbiology, Institute of Biosciences, TU Bergakademie Freiberg, Leipziger Str. 29, 09599 Freiberg, Germany.
- Microbial Biotechnology, Faculty of Biology & Biotechnology, Ruhr-Universität Bochum, Universitätsstr. 150, 44780 Bochum, Germany.
| | - Rob Schoevaart
- ChiralVision, J.H. Oortweg 21, 2333 CH Leiden, The Netherlands.
| | - Ulf Hanefeld
- Department of Biotechnology, Delft University of Technology, Section Biocatalysis, Van der Maasweg 9, 2629 HZ Delft, The Netherlands.
| | - Peter-Leon Hagedoorn
- Department of Biotechnology, Delft University of Technology, Section Biocatalysis, Van der Maasweg 9, 2629 HZ Delft, The Netherlands.
| |
Collapse
|
14
|
Lehrer AT, Wong TAS, Lieberman MM, Johns L, Medina L, Feldmann F, Feldmann H, Marzi A. Recombinant subunit vaccines protect guinea pigs from lethal Ebola virus challenge. Vaccine 2019; 37:6942-6950. [PMID: 31324500 DOI: 10.1016/j.vaccine.2019.06.035] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 05/09/2019] [Accepted: 06/14/2019] [Indexed: 01/09/2023]
Abstract
Ebola virus (EBOV) is among the deadliest pathogens known to man causing infrequent outbreaks of hemorrhagic disease. In humans, the case fatality rates in the outbreaks can reach 90%. During the West African epidemic almost 30,000 people were infected and of these over 11,000 fatalities were reported. Currently, we are facing an uncontained larger outbreak in the Democratic Republic of the Congo. Even though EBOV was discovered in 1976, extensive efforts to develop countermeasures, particularly therapeutics and vaccines, started late and there is still no FDA-approved product available. Nevertheless, one candidate vaccine, the rVSV-ZEBOV, is being used in clinical trials during the current outbreak with the hope of ending the human transmission chains. However, adverse reactions to administration of some EBOV vaccines have been reported; therefore, we have developed a safe and efficacious formulation of insect-cell derived adjuvanted protein vaccines. Vaccine candidates containing the EBOV glycoprotein with or without matrix proteins VP24 and VP40 formulated with one of three different adjuvants were tested in guinea pigs for immunogenicity and efficacy against lethal EBOV challenge. The results demonstrated that these vaccine candidates engendered high titers of antigen-specific antibodies in immunized animals and two of these vaccine candidates afforded complete or nearly complete protection against lethal challenge. Interestingly, we found a sex bias in partially protected immunized groups with male guinea pigs succumbing to disease and females surviving. In summary, we developed a safe and immunogenic adjuvanted subunit vaccine uniformly protective against EBOV disease in guinea pigs.
Collapse
Affiliation(s)
- Axel T Lehrer
- PanThera Biopharma, LLC, Aiea, HI 96701, United States; University of Hawaii at Manoa, John A. Burns School of Medicine, Honolulu, HI 96813, United States.
| | - Teri-Ann S Wong
- PanThera Biopharma, LLC, Aiea, HI 96701, United States; University of Hawaii at Manoa, John A. Burns School of Medicine, Honolulu, HI 96813, United States
| | - Michael M Lieberman
- University of Hawaii at Manoa, John A. Burns School of Medicine, Honolulu, HI 96813, United States
| | - Lisa Johns
- PanThera Biopharma, LLC, Aiea, HI 96701, United States; University of Hawaii at Manoa, John A. Burns School of Medicine, Honolulu, HI 96813, United States
| | - Liana Medina
- University of Hawaii at Manoa, John A. Burns School of Medicine, Honolulu, HI 96813, United States
| | - Friederike Feldmann
- Rocky Mountain Veterinary Branch, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT 59840, United States
| | - Heinz Feldmann
- Laboratory of Virology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT 59840, United States
| | - Andrea Marzi
- Laboratory of Virology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT 59840, United States.
| |
Collapse
|
15
|
Wang P, Škalamera Đ, Sui X, Zhang P, Michalek SM. Synthesis and Evaluation of QS-7-Based Vaccine Adjuvants. ACS Infect Dis 2019; 5:974-981. [PMID: 30920199 DOI: 10.1021/acsinfecdis.9b00039] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
We have designed and synthesized two analogs (5 and 6) of QS-7, a natural saponin compound isolated from Quillaja saponaria (QS) Molina tree bark. The only structural difference between compound 5 and 6 is that 5 is acetylated at the 3- and 4-O positions of the quillaic acid C28 fucosyl unit while 6 is not. However, the two analogs show significantly different immunostimulant profiles. Compound 5 may potentiate a mixed Th1/Th2 (Th, T helper cells) immune response against the specific antigens while compound 6 may only induce a Th2-biased immunity. These results suggest that the 3- and/or 4-O acetyl groups of the fucosyl unit may play an important role in tuning the adjuvanticity of the QS-7 analogs, and compound 5 can serve as a structurally defined synthetic adjuvant when a mixed Th1/Th2 immune responses is desired.
Collapse
|
16
|
Da Silva DM, Skeate JG, Chavez-Juan E, Lühen KP, Wu JM, Wu CM, Kast WM, Hwang K. Therapeutic efficacy of a human papillomavirus type 16 E7 bacterial exotoxin fusion protein adjuvanted with CpG or GPI-0100 in a preclinical mouse model for HPV-associated disease. Vaccine 2019; 37:2915-2924. [PMID: 31010714 DOI: 10.1016/j.vaccine.2019.04.043] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2018] [Revised: 04/10/2019] [Accepted: 04/15/2019] [Indexed: 12/18/2022]
Abstract
Persistent human papillomavirus (HPV) infection is causally linked to the development of several human cancers, including cervical, vulvar, vaginal, anal, penile, and oropharyngeal cancers. To address the need for a therapeutic vaccine against HPV-associated diseases, here we test and compare the immunogenicity and therapeutic efficacy of a bacterial exotoxin fusion protein covalently linked to the HPV16 E7 oncoprotein adjuvanted with CpG or GPI-0100 in the C3.43 preclinical HPV16-transformed tumor model. We show that TVGV-1 protein vaccine adjuvanted with either CpG or GPI-0100 adjuvant induces a high frequency of E7-specific CD8+ T cells, and both adjuvants are able to assist the immune response in inducing polyfunctional cytokine-secreting lytic T cells that show therapeutic efficacy against well-established C3.43 tumors. CpG-adjuvanted TVGV-1 resulted in higher frequencies of IFNγ secreting and degranulating E7-specific T cells compared to GPI-0100-adjuvanted TVGV-1, resulting in marginally increased in vivo efficacy. Despite minor differences in immune response outcomes, we consider both CpG ODN and GPI-0100 to be promising vaccine adjuvants to increase the immunogenicity and therapeutic efficacy of the TVGV-1 protein for HPV16-driven cancers.
Collapse
Affiliation(s)
- Diane M Da Silva
- Department of Obstetrics & Gynecology, University of Southern California, Los Angeles, CA 90033, USA; Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA 90033, USA.
| | - Joseph G Skeate
- Department of Molecular Microbiology & Immunology, University of Southern California, Los Angeles, CA 90033, USA
| | - Elena Chavez-Juan
- Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA 90033, USA
| | - Kim P Lühen
- Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA 90033, USA
| | - Jiun-Ming Wu
- TheVax Genetics Vaccine Co., Ltd, Zhubei City, Hsinchu County 302, Taiwan, ROC
| | - Chia-Mao Wu
- TheVax Genetics Vaccine Co., Ltd, Zhubei City, Hsinchu County 302, Taiwan, ROC
| | - W Martin Kast
- Department of Obstetrics & Gynecology, University of Southern California, Los Angeles, CA 90033, USA; Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA 90033, USA; Department of Molecular Microbiology & Immunology, University of Southern California, Los Angeles, CA 90033, USA
| | - KinKai Hwang
- TheVax Genetics Vaccine Co., Ltd, Irvine, CA 92618, USA
| |
Collapse
|
17
|
Wang P, Škalamera Đ, Sui X, Zhang P, Michalek SM. Synthesis and Evaluation of a QS-17/18-Based Vaccine Adjuvant. J Med Chem 2019; 62:1669-1676. [PMID: 30656932 DOI: 10.1021/acs.jmedchem.8b01997] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
We have synthesized a QS-17/18 analogue (7) and evaluated its adjuvant activity in the formulation with rHagB antigen. Compound 7 and QS-21 analogues 5 and 6 are presumably the major components of GPI-0100, a widely used complex mixture of semisynthetic derivatives of Quillaja saponaria (QS) Molina saponins. The QS-17/18 analogue 7 shows an adjuvant activity profile similar to that of GPI-0100, potentiating mixed Th-1/Th-2 immune responses, which is different from those of QS-21 analogues 5 and 6 that probably only induce a Th2-like immunity. The combination of QS-17/18 and QS-21 analogues does not show a synergistic effect. These results suggest that QS-17/18 analogue 7 might be the active component of GPI-0100 responsible for its immunostimulant property. Therefore, compound 7 can not only be a structurally defined alternative to GPI-0100 but also provide a valuable clue for rational design of new QS-based vaccine adjuvants with better adjuvant properties.
Collapse
|
18
|
Ding F, Zhang N, Wang Z, Qiu J. The Radioprotective Effect of Polyphenols From Pinecones of Pinus koraiensis
and Their Synergistic Effect With Auricularia auricula-judae
(Bull.) J. Schröt Polysaccharides. STARCH-STARKE 2018. [DOI: 10.1002/star.201800009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Fangli Ding
- Department of Food Science; School of Chemistry and Chemical Engineering; Harbin Institute of Technology; Harbin 150001 China
| | - Naixun Zhang
- Department of Food Science and Engineering; School of Forestry; Northeast Forestry University; Harbin 150040 China
| | - Zhenyu Wang
- Department of Food Science; School of Chemistry and Chemical Engineering; Harbin Institute of Technology; Harbin 150001 China
| | - Junqiang Qiu
- Department of Food Science; School of Chemistry and Chemical Engineering; Harbin Institute of Technology; Harbin 150001 China
| |
Collapse
|
19
|
Zhang XP, Li YD, Luo LL, Liu YQ, Li Y, Guo C, Li ZD, Xie XR, Song HX, Yang LP, Sun SB, An FY. Astragalus Saponins and Liposome Constitute an Efficacious Adjuvant Formulation for Cancer Vaccines. Cancer Biother Radiopharm 2018; 33:25-31. [PMID: 29466034 DOI: 10.1089/cbr.2017.2369] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Cancer vaccines mostly aim to induce cytotoxic T lymphocytes (CTLs) against tumors. An appropriate adjuvant is of fundamental importance for inducing cellular immune response. Since the antigen in particulate form is substantially more immunogenic than soluble form antigen, it is beneficial to interact with antigen-presenting cells membrane to induce robust CD8+ T cell activation following vaccination. Based on previous research, we designed an adjuvant formulation by combining Astragalus saponins, cholesterol, and liposome to incorporate antigen into a particulate delivery system, so as to enhance cellular immune response. Meanwhile, angiogenesis contributes to tumor growth and metastasis, and basic fibroblast growth factor (bFGF) is involved in tumor angiogenesis. Therefore, using lipo-saponins adjuvant formulation and a human recombinant bFGF antigen protein, we tried to induce bFGF-specific CTL response to inhibit tumor angiogenesis to achieve antitumor activity. After five immunizations, the lipo-saponins/bFGF complex elicited robust antibody response and markedly higher amount of interferon-γ in BALB/c mice, resulting in superior antitumor activities. Decreased microvessel density in CD31 immunohistochemistry and the lysis of vascular endothelial cells by the T lymphocytes from the immunized mice indicated that the immunity inhibited the angiogenesis of tumors and further led to the inhibition of tumors. Our data suggest that the approach to construct adjuvant formulation between liposome and Astragalus saponins appeared highly desirable, and that Astragalus saponins may be utilized as a valuable additive for enhancing the effectiveness of vaccines and stimulating an appropriate immune response that can benefit tumor therapy.
Collapse
Affiliation(s)
- Xiao-Ping Zhang
- 1 Institute of Integrated Traditional Chinese and Western Medicine, Gansu University of Chinese Medicine , Lanzhou, China
| | - Ying-Dong Li
- 1 Institute of Integrated Traditional Chinese and Western Medicine, Gansu University of Chinese Medicine , Lanzhou, China
| | - Lu-Lu Luo
- 2 Affiliated Hospital, Gansu University of Chinese Medicine , Lanzhou, China
| | - Yong-Qi Liu
- 1 Institute of Integrated Traditional Chinese and Western Medicine, Gansu University of Chinese Medicine , Lanzhou, China
| | - Yang Li
- 1 Institute of Integrated Traditional Chinese and Western Medicine, Gansu University of Chinese Medicine , Lanzhou, China
| | - Chao Guo
- 1 Institute of Integrated Traditional Chinese and Western Medicine, Gansu University of Chinese Medicine , Lanzhou, China
| | - Zhen-Dong Li
- 3 Department of Ultrasound, The Second Hospital of Lanzhou University , Lanzhou, China
| | - Xiao-Rong Xie
- 1 Institute of Integrated Traditional Chinese and Western Medicine, Gansu University of Chinese Medicine , Lanzhou, China
| | - Hai-Xia Song
- 4 Department of Radiotherapy, Tumor Hospital of Gansu Province , Lanzhou, China
| | - Li-Ping Yang
- 5 Department of Oncology, The First Hospital of Lanzhou University , Lanzhou, China
| | - Shao-Bo Sun
- 1 Institute of Integrated Traditional Chinese and Western Medicine, Gansu University of Chinese Medicine , Lanzhou, China
| | - Fang-Yu An
- 1 Institute of Integrated Traditional Chinese and Western Medicine, Gansu University of Chinese Medicine , Lanzhou, China
| |
Collapse
|
20
|
Preparation optimization and protective effect on 60Co-γ radiation damage of Pinus koraiensis pinecone polyphenols microspheres. Int J Biol Macromol 2018; 113:583-591. [DOI: 10.1016/j.ijbiomac.2018.02.131] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2017] [Revised: 01/14/2018] [Accepted: 02/20/2018] [Indexed: 11/24/2022]
|
21
|
Zhang X, Li NL, Guo C, Li YD, Luo LL, Liu YQ, Duan YY, Li ZD, Xie XR, Song HX, Yang LP, An FY. A vaccine targeting basic fibroblast growth factor elicits a protective immune response against murine melanoma. Cancer Biol Ther 2018; 19:518-524. [PMID: 29405828 PMCID: PMC5927703 DOI: 10.1080/15384047.2018.1435223] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Revised: 01/11/2018] [Accepted: 01/28/2018] [Indexed: 01/05/2023] Open
Abstract
Tumor growth and metastasis are closely related to angiogenesis. Basic fibroblast growth factor(bFGF) is an angiogenic factor, and up-regulated expression of bFGF plays a crucial role in the development and metastasis of melanoma. Therefore, in this study, we sought to achieve antitumor activity by immunity targeting bFGF which would inhibit tumor angiogenesis and simultaneously induce bFGF specific cytotoxic T lymphocytes to kill melanoma cells. A human bFGF protein was used as exogenous antigen, coupled with a saponin-liposome adjuvant formulation to enhance CTL response. The results showed that the immunity induced strong immune response and produced prominent anti-cancer activities. CD31 immunohistochemistry and alginate-encapsulated tumor cell assay displayed that tumor angiogenesis was effectively inhibited. Further, the higher production of IFN-γ and cytotoxic T lymphocyte killing assay suggested that the anti-cancer activities may mainly depend on cellular immune response, which could cause the inhibition of tumor angiogenesis and specific killing of tumor cells by bFGF-specific cytotoxic T lymphocytes. We concluded that immunotherapy targeting bFGF may be a prominent strategy for melanoma, and that the adjuvant formulation of saponin-liposome is very desirable in enhancing cytotoxic T lymphocytes response.
Collapse
Affiliation(s)
- Xiaoping Zhang
- Institute of Integrated Traditional Chinese and Westen Medicine, Gansu University of Chinese Medicine, Lanzhou, Gansu, China
| | - Neng-Lian Li
- Institute of Integrated Traditional Chinese and Westen Medicine, Gansu University of Chinese Medicine, Lanzhou, Gansu, China
| | - Chao Guo
- Institute of Integrated Traditional Chinese and Westen Medicine, Gansu University of Chinese Medicine, Lanzhou, Gansu, China
| | - Ying-Dong Li
- Institute of Integrated Traditional Chinese and Westen Medicine, Gansu University of Chinese Medicine, Lanzhou, Gansu, China
| | - Lu-Lu Luo
- Affiliated Hospital, Gansu University of Chinese Medicine, Lanzhou, Gansu, China
| | - Yong-Qi Liu
- Institute of Integrated Traditional Chinese and Westen Medicine, Gansu University of Chinese Medicine, Lanzhou, Gansu, China
| | - Yun-Yan Duan
- Experiment Teaching Center, Gansu University of Chinese Medicine, Lanzhou, Gansu, China
| | - Zhen-Dong Li
- Department of Ultrasound, The second Hospital of Lanzhou University, Lanzhou, Gansu, China
| | - Xiao-Rong Xie
- Institute of Integrated Traditional Chinese and Westen Medicine, Gansu University of Chinese Medicine, Lanzhou, Gansu, China
| | - Hai-Xia Song
- Radiotherapy Department, Tumor Hospital of Gansu Province, Lanzhou, Gansu, China
| | - Li-Ping Yang
- Oncology Department, The First Hospital of Lanzhou University, Lanzhou, Gansu, China
| | - Fang-Yu An
- Institute of Integrated Traditional Chinese and Westen Medicine, Gansu University of Chinese Medicine, Lanzhou, Gansu, China
| |
Collapse
|
22
|
Lehrer AT, Wong TAS, Lieberman MM, Humphreys T, Clements DE, Bakken RR, Hart MK, Pratt WD, Dye JM. Recombinant proteins of Zaire ebolavirus induce potent humoral and cellular immune responses and protect against live virus infection in mice. Vaccine 2018; 36:3090-3100. [PMID: 28216187 PMCID: PMC8426131 DOI: 10.1016/j.vaccine.2017.01.068] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Revised: 01/17/2017] [Accepted: 01/30/2017] [Indexed: 01/26/2023]
Abstract
Infections with filoviruses in humans are highly virulent, causing hemorrhagic fevers which result in up to 90% mortality. In addition to natural infections, the ability to use these viruses as bioterrorist weapons is of significant concern. Currently, there are no licensed vaccines or therapeutics available to combat these infections. The pathogenesis of disease involves the dysregulation of the host's immune system, which results in impairment of the innate and adaptive immune responses, with subsequent development of lymphopenia, thrombocytopenia, hemorrhage, and death. Questions remain with regard to the few survivors of infection, who manage to mount an effective adaptive immune response. These questions concern the humoral and cellular components of this response, and whether such a response can be elicited by an appropriate prophylactic vaccine. The data reported herein describe the production and evaluation of a recombinant subunit Ebola virus vaccine candidate consisting of insect cell expressed Zaire ebolavirus (EBOV) surface glycoprotein (GP) and the matrix proteins VP24 and VP40. The recombinant subunit proteins are shown to be highly immunogenic in mice, yielding both humoral and cellular responses, as well as highly efficacious, providing up to 100% protection against a lethal challenge with live virus. These results demonstrate proof of concept for such a recombinant non-replicating vaccine candidate in the mouse model of EBOV which helps to elucidate immune correlates of protection and warrants further development.
Collapse
MESH Headings
- Adjuvants, Immunologic/administration & dosage
- Animals
- Antibodies, Neutralizing/blood
- Antibodies, Viral/blood
- Ebola Vaccines/immunology
- Ebolavirus
- Female
- Hemorrhagic Fever, Ebola/immunology
- Hemorrhagic Fever, Ebola/prevention & control
- Immunity, Cellular
- Immunity, Humoral
- Mice
- Mice, Inbred BALB C
- Vaccines, Subunit/immunology
- Vaccines, Synthetic/immunology
- Viral Envelope Proteins/immunology
- Viral Matrix Proteins/immunology
- Viral Proteins/immunology
Collapse
Affiliation(s)
- Axel T Lehrer
- PanThera Biopharma, LLC, Aiea, HI 96701, United States.
| | | | | | | | | | - Russell R Bakken
- US Army Medical Research Institute for Infectious Diseases, Fort Detrick, MD 21702, United States
| | - Mary Kate Hart
- US Army Medical Research Institute for Infectious Diseases, Fort Detrick, MD 21702, United States
| | - William D Pratt
- US Army Medical Research Institute for Infectious Diseases, Fort Detrick, MD 21702, United States
| | - John M Dye
- US Army Medical Research Institute for Infectious Diseases, Fort Detrick, MD 21702, United States
| |
Collapse
|
23
|
Han M, Sun P, Li Y, Wu G, Nie J. Structural characterization of a polysaccharide from Sargassum henslowianum, and its immunomodulatory effect on gastric cancer rat. Int J Biol Macromol 2018; 108:1120-1127. [PMID: 29274428 DOI: 10.1016/j.ijbiomac.2017.12.109] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Revised: 11/26/2017] [Accepted: 12/19/2017] [Indexed: 01/17/2023]
Abstract
A complicated sulfated fucoidan, SHPPB2, was purified from Sargassum henslowianum by DEAE-cellulose 52 and Sephacryl S-300 column chromatography. Via chemical and spectral method, SHPPB2 was found to contain mannose, glucuronic acid, galactose, xylose, and fucose, in a ratio of 17.4: 13.5: 10.5: 16.8: 41.8, as well as 21.4% of sulfate. The methylation analysis demonstrated terminal, 3-, 4-, 2, 3-, and 3, 4- linked fucose, 2-, 2, 3-, 2, 4-, and 2, 4, 6- linked mannose, terminal, 4-, 6-, 2, 4-, 3, 4-, and 3, 6- linked galactose, terminal and 4- linked xylose, and 4- linked glucuronic acid. In addition, the sulfate groups were substituted on the C-2, C-3 or C-4 of 3- and 4- linked fucose, on the C-4 or C-6 of 2- linked mannose, and on C-2 or C-3 of 4- and 6- linked galactose. With the treatment of SHPPB2 in the N-methyl-N'-nitro-nitrosoguanidine (MNNG) induced gastric cancer rats, it was observed with an increased body weight, and improved immune organ indices. Furthermore, SHPPB2 could significantly promote splenocyte proliferation induced by ConA or LPS in gastric cancer rats, and improve anti-inflammatory cytokines (IL-2, IL-4, and IL-10) secretion, but reduce pro-inflammatory cytokines (IL-6 and TNF-α). Taken together, it suggested that SHPPB2 could improve immune function in gastric cancer rats. Thus, it could be explored as a potential immuno-therapy for gastric cancer treatment.
Collapse
Affiliation(s)
- Mingyang Han
- Department of General Surgery, Henan Provincial People's Hospital, Zhengzhou, Henan, 450000, China
| | - Peichun Sun
- Department of General Surgery, Henan Provincial People's Hospital, Zhengzhou, Henan, 450000, China
| | - Yuanyuan Li
- Department of Department of Reproductive Center, Henan Provincial People's Hospital, Zhengzhou, Henan, 450000, China
| | - Gang Wu
- Department of General Surgery, Henan Provincial People's Hospital, Zhengzhou, Henan, 450000, China
| | - Jiewei Nie
- Department of General Surgery, Henan Provincial People's Hospital, Zhengzhou, Henan, 450000, China.
| |
Collapse
|
24
|
Shin JS, Chung SH, Lee WS, Lee JY, Kim JL, Lee KT. Immunostimulatory effects of cordycepin-enriched WIB-801CE from Cordyceps militaris
in splenocytes and cyclophosphamide-induced immunosuppressed mice. Phytother Res 2017; 32:132-139. [DOI: 10.1002/ptr.5960] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Revised: 08/21/2017] [Accepted: 10/02/2017] [Indexed: 12/27/2022]
Affiliation(s)
- Ji-Sun Shin
- Department of Pharmaceutical Biochemistry; College of Pharmacy, Kyung Hee University; 26, Kyungheedae-ro, Dongdaemun-gu Seoul 02447 Korea
| | - Soo-Hak Chung
- Central Research Institute, Whanin Pharm. Co., Ltd GBSA; 107, Gwanggyo-ro Yeongtong-gu, Suwon, Gyeonggi-do 16229 Korea
| | - Woo-Seok Lee
- Department of Pharmaceutical Biochemistry; College of Pharmacy, Kyung Hee University; 26, Kyungheedae-ro, Dongdaemun-gu Seoul 02447 Korea
- Department of Life and Nanopharmaceutical Science; College of Pharmacy, Kyung Hee University; 26, Kyungheedae-ro, Dongdaemun-gu Seoul 02447 Korea
| | - Je-Young Lee
- Central Research Institute, Whanin Pharm. Co., Ltd GBSA; 107, Gwanggyo-ro Yeongtong-gu, Suwon, Gyeonggi-do 16229 Korea
| | - Jong-Lae Kim
- Central Research Institute, Whanin Pharm. Co., Ltd GBSA; 107, Gwanggyo-ro Yeongtong-gu, Suwon, Gyeonggi-do 16229 Korea
| | - Kyung-Tae Lee
- Department of Pharmaceutical Biochemistry; College of Pharmacy, Kyung Hee University; 26, Kyungheedae-ro, Dongdaemun-gu Seoul 02447 Korea
- Department of Life and Nanopharmaceutical Science; College of Pharmacy, Kyung Hee University; 26, Kyungheedae-ro, Dongdaemun-gu Seoul 02447 Korea
| |
Collapse
|
25
|
Design, synthesis and evaluation of optimized saponin variants derived from the vaccine adjuvant QS-21. PURE APPL CHEM 2017. [DOI: 10.1515/pac-2016-1213] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
AbstractThe saponin natural product QS-21 is one of the most potent investigational adjuvants, which are substances added to vaccines to enhance the immunogenicity of the antigen and potentiate the immune response. While QS-21 has been coadministered with vaccines against cancers and infectious diseases in many clinical trials, its inherent liabilities (scarcity, heterogeneity, instability, and dose-limiting toxicity) have limited its widespread clinical use. Furthermore, its molecular mechanisms of action are poorly understood. Structural modification of the natural product using chemical synthesis has become an important strategy to overcome these limitations. This review focuses mainly on research efforts in the group of the late Professor David Y. Gin on the development of optimized synthetic saponin adjuvants derived from QS-21. A number of QS21 variants incorporating stable acyl chain amide linkages, truncated carbohydrate domains, and targeted modifications at the triterpene and central glycosyl ester linkage were designed, chemically synthesized, and immunologically evaluated. These studies delineated key minimal structural requirements for adjuvant activity, established correlations between saponin conformation and activity, and provided improved, synthetically accessible saponin adjuvants. Moreover, leveraging these structure–activity relationships, novel saponin probes with high potency and reduced toxicity were developed and used in biodistribution and fluorescence imaging studies, yielding early insights into their enigmatic mechanisms of action.
Collapse
|
26
|
Synthetic agonists of NOD-like, RIG-I-like, and C-type lectin receptors for probing the inflammatory immune response. Future Med Chem 2017; 9:1345-1360. [PMID: 28776416 DOI: 10.4155/fmc-2017-0101] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Synthetic agonists of innate immune cells are of interest to immunologists due to their synthesis from well-defined materials, optimized activity, and monodisperse chemical purity. These molecules are used in both prophylactic and therapeutic contexts from vaccines to cancer immunotherapies. In this review we highlight synthetic agonists that activate innate immune cells through three classes of pattern recognition receptors: NOD-like receptors, RIG-I-like receptors, and C-type lectin receptors. We classify these agonists by the receptor they activate and present them from a chemical perspective, focusing on structural components that define agonist activity. We anticipate this review will be useful to the medicinal chemist as a guide to chemical motifs that activate each receptor, ultimately illuminating a chemical space ripe for exploration.
Collapse
|
27
|
Patil HP, Herrera Rodriguez J, de Vries-Idema J, Meijerhof T, Frijlink HW, Hinrichs WLJ, Huckriede A. Adjuvantation of Pulmonary-Administered Influenza Vaccine with GPI-0100 Primarily Stimulates Antibody Production and Memory B Cell Proliferation. Vaccines (Basel) 2017; 5:vaccines5030019. [PMID: 28749414 PMCID: PMC5620550 DOI: 10.3390/vaccines5030019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Revised: 06/19/2017] [Accepted: 07/21/2017] [Indexed: 11/24/2022] Open
Abstract
Adjuvants are key components in vaccines, they help in reducing the required antigen dose but also modulate the phenotype of the induced immune response. We previously showed that GPI-0100, a saponin-derived adjuvant, enhances antigen-specific mucosal and systemic antibody responses to influenza subunit and whole inactivated influenza virus (WIV) vaccine administered via the pulmonary route. However, the impact of the GPI-0100 dose on immune stimulation and the immune mechanisms stimulated by GPI-0100 along with antigen are poorly understood. Therefore, in this study we immunized C57BL/6 mice via the pulmonary route with vaccine consisting of WIV combined with increasing amounts of GPI-0100, formulated as a dry powder. Adjuvantation of WIV enhanced influenza-specific mucosal and systemic immune responses, with intermediate doses of 5 and 7.5 μg GPI-0100 being most effective. The predominant antibody subtype induced by GPI-0100-adjuvanted vaccine was IgG1. Compared to non-adjuvanted vaccine, GPI-0100-adjuvanted WIV vaccine gave rise to higher numbers of antigen-specific IgA- but not IgG-producing B cells in the lungs along with better mucosal and systemic memory B cell responses. The GPI-0100 dose was negatively correlated with the number of influenza-specific IFNγ- and IL17-producing T cells and positively correlated with the number of IL4-producing T cells observed after immunization and challenge. Overall, our results show that adjuvantation of pulmonary-delivered WIV with GPI-0100 mostly affects B cell responses and effectively induces B cell memory.
Collapse
Affiliation(s)
- Harshad P Patil
- Department of Medical Microbiology, University of Groningen, University Medical Center Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands.
- Department of Communicable Diseases, Interactive Research School for Health Affairs, Bharati Vidyapeeth University, Pune-Satara Road, Katraj-Dhankawadi, Pune 411043, Maharashtra, India.
| | - José Herrera Rodriguez
- Department of Medical Microbiology, University of Groningen, University Medical Center Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands.
| | - Jacqueline de Vries-Idema
- Department of Medical Microbiology, University of Groningen, University Medical Center Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands.
| | - Tjarko Meijerhof
- Department of Medical Microbiology, University of Groningen, University Medical Center Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands.
| | - Henderik W Frijlink
- Department of Pharmaceutical Technology and Biopharmacy, University of Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands.
| | - Wouter L J Hinrichs
- Department of Pharmaceutical Technology and Biopharmacy, University of Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands.
| | - Anke Huckriede
- Department of Medical Microbiology, University of Groningen, University Medical Center Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands.
| |
Collapse
|
28
|
Abstract
Folate-targeted immunotherapy constitutes a powerful method for the treatment of established arthritis in multiple animal models of the disease. The therapy involves immunization of the animal against a hapten to induce anti-hapten antibodies, followed by injection with a folate-hapten conjugate to decorate the surface of folate receptor-positive (activated) macrophages with the antigenic hapten. The hapten-marked macrophages are then recognized by the anti-hapten antibodies and eliminated by immune mechanisms, leading to attenuation of disease symptoms. In the following paper, we optimize the therapy for elimination of inflammatory macrophages and suppression of rheumatoid arthritis symptoms. We also demonstrate a tight correlation between folate receptor-positive macrophage abundance in the liver and inflammation of affected joints. The results suggest that therapies that reduce folate receptor-positive macrophage populations in the body should constitute effective treatments for rheumatoid arthritis.
Collapse
|
29
|
Wang P, Devalankar DA, Dai Q, Zhang P, Michalek SM. Synthesis and Evaluation of QS-21-Based Immunoadjuvants with a Terminal-Functionalized Side Chain Incorporated in the West Wing Trisaccharide. J Org Chem 2016; 81:9560-9566. [PMID: 27709937 PMCID: PMC6488304 DOI: 10.1021/acs.joc.6b00922] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Three QS-21-based vaccine adjuvant candidates with a terminal-functionalized side chain incorporated in the west wing trisaccharide have been synthesized. The terminal polar functional group serves to increase the solubility of these analogues in water. Two of the synthetic analogues have been shown to have adjuvant activity comparable to that of GPI-0100. The stand-alone adjuvant activity of the new synthetic analogues again confirmed that it is a feasible way to develop new saponin-based vaccine adjuvants through derivatizing at the west wing branched trisaccharide domain. Inclusion of an additional polar functional group such as a carboxyl group (as in 3x) or a monosaccharide (as in 4x and 5x) is sufficient to increase the water solubility of the corresponding synthetic analogues to a level comparable to that of GPI-0100 and suitable for immunological studies and clinical application. The structure of the incorporated side chain has a significant impact on the adjuvant activity in terms of the magnitude and nature of the host's responses.
Collapse
Affiliation(s)
- Pengfei Wang
- Department of Chemistry, University of Alabama at Birmingham, 901 14th Street South, Birmingham, Alabama 35294, United States
| | - Dattatray A. Devalankar
- Department of Chemistry, University of Alabama at Birmingham, 901 14th Street South, Birmingham, Alabama 35294, United States
| | - Qipu Dai
- Department of Chemistry, University of Alabama at Birmingham, 901 14th Street South, Birmingham, Alabama 35294, United States
| | - Ping Zhang
- Department of Pediatric Dentistry, University of Alabama at Birmingham, 901 14th Street South, Birmingham, Alabama 35294, United States
| | - Suzanne M Michalek
- Department of Microbiology, University of Alabama at Birmingham, 901 14th Street South, Birmingham, Alabama 35294, United States
| |
Collapse
|
30
|
Fernández-Tejada A, Tan DS, Gin DY. Development of Improved Vaccine Adjuvants Based on the Saponin Natural Product QS-21 through Chemical Synthesis. Acc Chem Res 2016; 49:1741-56. [PMID: 27568877 PMCID: PMC5032057 DOI: 10.1021/acs.accounts.6b00242] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
![]()
Vaccines based on molecular subunit antigens
are increasingly being
investigated due to their improved safety and more precise targeting
compared to classical whole-pathogen vaccines. However, subunit vaccines
are inherently less immunogenic; thus, coadministration of an adjuvant
to increase the immunogenicity of the antigen is often necessary to
elicit a potent immune response. QS-21, an immunostimulatory saponin
natural product, has been used as an adjuvant in conjunction with various
vaccines in numerous clinical trials, but suffers from several inherent
liabilities, including scarcity, chemical instability, and dose-limiting
toxicity. Moreover, little is known about its mechanism of action.
Over a decade-long effort, beginning at the University of Illinois
at Urbana-Champaign and continuing at the Memorial Sloan Kettering
Cancer Center (MSKCC), the group of Prof. David Y. Gin accomplished
the total synthesis of QS-21 and developed a practical semisynthetic
approach to novel variants that overcome the liabilities of the natural
product. First, semisynthetic QS-21 variants were designed with stable
amide linkages in the acyl chain domain that exhibited comparable
in vivo adjuvant activity and lower toxicity than the natural product.
Further modifications in the acyl chain domain and truncation of the
linear tetrasaccharide domain led to identification of a trisaccharide
variant with a simple carboxylic acid side chain that retained potent
adjuvant activity, albeit with reemergence of toxicity. Conversely,
an acyl chain analogue terminating in a free amine was inactive but
enabled chemoselective functionalization with radiolabeled and fluorescent
tags, yielding adjuvant-active saponin probes that, unlike inactive
congeners, accumulated in the lymph nodes in vaccinated mice and internalized
into dendritic cells. Subtle variations in length, stereochemistry,
and conformational flexibility around the central glycosidic linkage
provided QS-21 variants with adjuvant activities that correlated with
specific conformations found in molecular dynamics simulations. Notably,
deletion of the entire branched trisaccharide domain afforded potent,
truncated saponin variants with negligible toxicity and improved synthetic
access, facilitating subsequent investigation of the triterpene core.
The triterpene C4-aldehyde substituent, previously proposed to be
important for QS-21 adjuvant activity, proved to be dispensable
in these truncated saponin variants, while the presence of the C16
hydroxyl group enhanced activity. Novel adjuvant conjugates incorporating
the small-molecule immunopotentiator tucaresol at the acyl chain terminus
afforded adjuvant-active variants but without significant synergistic
enhancement of activity. Finally, a new divergent synthetic approach
was developed to provide versatile and streamlined access to additional
linear oligosaccharide domain variants with modified sugars and regiochemistries,
opening the door to the rapid generation of diverse, synthetically
accessible analogues. In this Account, we summarize these multidisciplinary
studies at the interface of chemistry, immunology, and medicine, which
have provided critical information on the structure–activity
relationships (SAR) of this Quillaja saponin class;
access to novel, potent, nontoxic adjuvants for use in subunit vaccines;
and a powerful platform for investigations into the mechanisms of
saponin immunopotentiation.
Collapse
Affiliation(s)
- Alberto Fernández-Tejada
- Chemical
Biology Program, and ‡Tri-Institutional Research Program, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, New York 10065, United States
| | - Derek S. Tan
- Chemical
Biology Program, and ‡Tri-Institutional Research Program, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, New York 10065, United States
| | - David Y. Gin
- Chemical
Biology Program, and ‡Tri-Institutional Research Program, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, New York 10065, United States
| |
Collapse
|
31
|
Cinobufagin enhances the protective efficacy of formalin-inactivated Salmonella typhimurium vaccine through Th1 immune response. Microb Pathog 2016; 99:264-270. [PMID: 27574776 DOI: 10.1016/j.micpath.2016.08.036] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2016] [Revised: 08/24/2016] [Accepted: 08/25/2016] [Indexed: 11/23/2022]
Abstract
Cinobufagin (CBG), one active ingredient isolated from Venenum Bufonis, has been demonstrated to have immunoregulatory effect. The aim of this study was to investigate whether CBG can enhance the protective efficacy of formalin-inactivated Salmonella typhimurium (FIST) in mice. ICR mice were immunized with FIST (106 CFU/mouse) alone or mixed with CBG (10, 20, and 40 μg) or alum (200 μg) on day 1 and day 15. Two weeks after the second immunization, serum and spleen were sampled for measuring FIST-specific antibody levels, cytokine levels, and splenocyte proliferation. The results showed that CBG enhanced FIST-specific IgG and IgG2a, the levels of interferon-gamma (IFNγ) and nitric oxide (NO), and the splenocyte proliferation response induced by concanavalin A, lipopolysaccharide, and FIST. In vivo protection studies showed that CBG significantly decreased the bacterial burdens in the spleen and prolonged the survival time of FIST-immunized mice challenged with live Salmonella typhimurium. In vivo IFNγ neutralization led to a significant reduction in FIST-specific IgG2a and IFNγ levels, and in the protective efficacy in CBG/FIST-immunized mice. In conclusion, CBG enhances the protective efficacy of formalin-inactivated Salmonella typhimurium vaccine by promoting the Th1 immune response.
Collapse
|
32
|
Zhu L, Zhang F, Yang LJ, Ge Y, Wei QF, Ou Y. EPSAH, an exopolysaccharide from Aphanothece halophytica GR02, improves both cellular and humoral immunity as a novel polysaccharide adjuvant. Chin J Nat Med 2016; 14:541-8. [PMID: 27507205 DOI: 10.1016/s1875-5364(16)30064-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Indexed: 11/17/2022]
Abstract
EPSAH is an exopolysaccharide from Aphanothece halophytica GR02. The present study was designed to evaluate its toxicity and adjuvant potential in the specific cellular and humoral immune responses in ovalbumin (OVA) in mice. EPSAH did not cause any mortality and side effects when the mice were administered subcutaneously twice at the dose of 50 mg·kg(-1). Hemolytic activity in vitro indicated that EPSAH was non-hemolytic. Splenocyte proliferation in vitro was assayed with different concentrations of EPSAH. The mice were immunized subcutaneously with OVA 0.1 mg alone or with OVA 0.1 mg dissolved in saline containing Alum (0.2 mg) or EPSAH (0.2, 0.4, or 0.8 mg) on Day 1 and 15. Two weeks later, splenocyte proliferation, natural killer (NK) cell activity, production of cytokines IL-2 from splenocytes, and serum OVA-specific antibody titers were measured. Phagocytic activity, production of pro-inflammatory cytokines IL-1 and IL-12 in mice peritoneal macrophages were also determined. EPSAH showed a dose-dependent stimulating effect on mitogen-induced proliferation. The Con A-, LPS-, and OVA-induced splenocyte proliferation and the serum OVA-specific IgG, IgG1, and IgG2a antibody titers in the immunized mice were significantly enhanced. EPSAH also significantly promoted the production of Th1 cytokine IL-2. Besides, EPSAH remarkably increased the killing activities of NK cells from splenocytes in the immunized mice. In addition, EPSAH enhanced phagocytic activity and the generation of pro-inflammatory cytokines IL-1 and IL-12 in macrophages. These results indicated that EPSAH had a strong potential to increase both cellular and humoral immune responses, particularly promoting the development of Th1 polarization.
Collapse
Affiliation(s)
- Lei Zhu
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
| | - Fan Zhang
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
| | - Li-Jun Yang
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
| | - Yang Ge
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
| | - Qing-Fang Wei
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
| | - Yu Ou
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, China.
| |
Collapse
|
33
|
Chen H, Jiao H, Cheng Y, Xu K, Jia X, Shi Q, Guo S, Wang M, Du L, Wang F. In VitroandIn VivoImmunomodulatory Activity of Okra (Abelmoschus esculentus L.) Polysaccharides. J Med Food 2016; 19:253-65. [DOI: 10.1089/jmf.2015.3513] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Affiliation(s)
- Huricha Chen
- College of Agriculture, Hainan University, Hainan Key Lab of Tropical Animal Reproduction & Breeding and Epidemic Disease Research, Animal Genetic Engineering Key Lab of Haikou, Haikou, People's Republic of China
| | - Hanwei Jiao
- College of Agriculture, Hainan University, Hainan Key Lab of Tropical Animal Reproduction & Breeding and Epidemic Disease Research, Animal Genetic Engineering Key Lab of Haikou, Haikou, People's Republic of China
| | - Ying Cheng
- College of Agriculture, Hainan University, Hainan Key Lab of Tropical Animal Reproduction & Breeding and Epidemic Disease Research, Animal Genetic Engineering Key Lab of Haikou, Haikou, People's Republic of China
| | - Kailian Xu
- College of Agriculture, Hainan University, Hainan Key Lab of Tropical Animal Reproduction & Breeding and Epidemic Disease Research, Animal Genetic Engineering Key Lab of Haikou, Haikou, People's Republic of China
| | - Xiaoxiao Jia
- College of Agriculture, Hainan University, Hainan Key Lab of Tropical Animal Reproduction & Breeding and Epidemic Disease Research, Animal Genetic Engineering Key Lab of Haikou, Haikou, People's Republic of China
| | - Qiaoyun Shi
- College of Agriculture, Hainan University, Hainan Key Lab of Tropical Animal Reproduction & Breeding and Epidemic Disease Research, Animal Genetic Engineering Key Lab of Haikou, Haikou, People's Republic of China
| | - Shiyu Guo
- College of Agriculture, Hainan University, Hainan Key Lab of Tropical Animal Reproduction & Breeding and Epidemic Disease Research, Animal Genetic Engineering Key Lab of Haikou, Haikou, People's Republic of China
| | - Manchuriga Wang
- College of Agriculture, Hainan University, Hainan Key Lab of Tropical Animal Reproduction & Breeding and Epidemic Disease Research, Animal Genetic Engineering Key Lab of Haikou, Haikou, People's Republic of China
| | - Li Du
- College of Agriculture, Hainan University, Hainan Key Lab of Tropical Animal Reproduction & Breeding and Epidemic Disease Research, Animal Genetic Engineering Key Lab of Haikou, Haikou, People's Republic of China
| | - Fengyang Wang
- College of Agriculture, Hainan University, Hainan Key Lab of Tropical Animal Reproduction & Breeding and Epidemic Disease Research, Animal Genetic Engineering Key Lab of Haikou, Haikou, People's Republic of China
| |
Collapse
|
34
|
Gao Z, Chen J, Qiu S, Li Y, Wang D, Liu C, Li X, Hou R, Yue C, Liu J, Li H, Hu Y. Optimization of selenylation modification for garlic polysaccharide based on immune-enhancing activity. Carbohydr Polym 2016; 136:560-9. [DOI: 10.1016/j.carbpol.2015.09.065] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2014] [Revised: 09/11/2015] [Accepted: 09/21/2015] [Indexed: 01/17/2023]
|
35
|
Fan Y, Ma X, Hou W, Guo C, Zhang J, Zhang W, Ma L, Song X. The adjuvanticity of ophiopogon polysaccharide liposome against an inactivated porcine parvovirus vaccine in mice. Int J Biol Macromol 2016; 82:264-72. [DOI: 10.1016/j.ijbiomac.2015.10.084] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Revised: 10/22/2015] [Accepted: 10/27/2015] [Indexed: 11/29/2022]
|
36
|
Chen L, Zhang J, Sun H. Immunological adjuvant effect of the peptide fraction from the larvae of Musca domestica. Altern Ther Health Med 2015; 15:427. [PMID: 26630909 PMCID: PMC4668601 DOI: 10.1186/s12906-015-0951-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2015] [Accepted: 11/26/2015] [Indexed: 11/10/2022]
Abstract
BACKGROUND The larvae of Musca domestica (Diptera: Muscidae) have been used traditionally for malnutritional stagnation, decubital necrosis, osteomyelitis, ecthyma and lip scald and also to treat coma and gastric cancer in the traditional Chinese medicine. Its immunomodulatory effects in naïve mice in relation to the traditional uses were also reported. However, the immunological adjuvant potentials of this insect have not yet been studied. METHODS The peptide fraction from the larvae of Musca domestica L. (MDPF) was evaluated for its adjuvant potentials on the immune responses to ovalbumin (OVA) and avian influenza vaccine (rL-H5) by determining antigen-specific antibody titers, splenocyte proliferation, activity of natural killer (NK) cell, the secretion of cytokines from splenocytes in the immunized mice. RESULTS MDPF significantly enhanced not only the concanavalin A (Con A)-, lipopolysaccharide (LPS)- and antigen-stimulated splenocyte proliferation, but serum antigen-specific IgG, IgG1, IgG2a, and IgG2b antibody titers in the mice immunized with OVA and rL-H5. MDPF also remarkably promoted the killing activities of NK cells in splenocytes from the mice immunized with rL-H5. Furthermore, MDPF significantly promoted the production of Th1 (IL-2 and IFN-γ) and Th2 (IL-10) cytokines from splenocytes in the immunized mice. CONCLUSIONS The results indicated that MDPF had a potential to increase both cellular and humoral immune responses and elicit a balanced Th1/Th2 response, and that MDPF may be a safe and efficacious vaccine adjuvant candidate.
Collapse
|
37
|
Zhang B, Qiu J, Wu C, Li Y, Liu Z. Anti-tumor and immunomodulatory activity of iron hepta-tungsten phosphate oxygen clusters complex. Int Immunopharmacol 2015; 29:293-301. [DOI: 10.1016/j.intimp.2015.11.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2015] [Revised: 10/30/2015] [Accepted: 11/03/2015] [Indexed: 11/30/2022]
|
38
|
Marciani DJ. Is fucose the answer to the immunomodulatory paradox of Quillaja saponins? Int Immunopharmacol 2015; 29:908-913. [PMID: 26603552 DOI: 10.1016/j.intimp.2015.10.028] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Revised: 10/19/2015] [Accepted: 10/20/2015] [Indexed: 10/22/2022]
Abstract
Quillaja saponins, e.g. QS-21, are immunomodulating aldehyde-carrying triterpene glycosides, which depending on the acylation state of their single fucosyl residue (Fucp) induce either Th1/Th2 or Th2 immunity. Indeed, their changes in immunomodulation or adjuvanticity from Th1/Th2 to sole Th2 immunity, correlate with the presence of acylated and de-acylated Fucp residues, respectively. Thus, it is possible to infer that the single Fucp residue is responsible for the Th2 immunity biasing induced by de-acylated Q. saponins (QT-0101). That removal of the fucosylated oligosaccharide from de-acylated Q. saponins results once more in the induction of Th1/Th2 immunity supports the Fucp role in polarizing the response toward Th2 immunity. From structural and functional analogies with the helminths' fucosylated glycans, it is possible to infer that these saponins' Fucp must bind to the lectin DC-SIGN on dendritic cells (DC). This binding to DC-SIGN, a C-type lectin that shows significant pliability in its binding interactions, must result in polarization toward Th2 while inhibiting Th1 immunity. Apparently, acylation of the Fucp by large fatty acids sterically hinders this sugar from binding to DC-SIGN, preventing a biasing to Th2 immunity. Evidently, de-acylation of Q. saponins may negatively affect vaccines requiring Th1 immunity for immune protection, particularly those against pathogens that use DC-SIGN to infect DCs and modulate Th2 immunity. However, it could be valuable in vaccines that require a sole Th2 immunity, like those against proteinopathies, e.g. Alzheimer's disease. Hence, it would valuable to elucidate the possible interactions between DC-SIGN and the QT-0101 immunomodulator.
Collapse
Affiliation(s)
- Dante J Marciani
- Qantu Therapeutics, Inc., 612 E. Main Street, Lewisville, TX 75057, USA.
| |
Collapse
|
39
|
Extraction, characterization of a Ginseng fruits polysaccharide and its immune modulating activities in rats with Lewis lung carcinoma. Carbohydr Polym 2015; 127:215-21. [DOI: 10.1016/j.carbpol.2015.03.070] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2014] [Revised: 03/17/2015] [Accepted: 03/19/2015] [Indexed: 11/23/2022]
|
40
|
Comparison of adjuvants for a spray freeze-dried whole inactivated virus influenza vaccine for pulmonary administration. Eur J Pharm Biopharm 2015; 93:231-41. [PMID: 25896446 DOI: 10.1016/j.ejpb.2015.04.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Revised: 03/25/2015] [Accepted: 04/09/2015] [Indexed: 02/02/2023]
Abstract
Stable vaccines administered to the lungs by inhalation could circumvent many of the problems associated with current immunizations against respiratory infections. We earlier provided proof of concept in mice that pulmonary delivered whole inactivated virus (WIV) influenza vaccine formulated as a stable dry powder effectively elicits influenza-specific antibodies in lung and serum. Yet, mucosal IgA, considered particularly important for protection at the site of virus entry, was poorly induced. Here we investigate the suitability of various Toll-like receptor (TLR) ligands and the saponin-derived compound GPI-0100 to serve as adjuvant for influenza vaccine administered to the lungs as dry powder. The TLR ligands palmitoyl-3-cysteine-serine-lysine-4 (Pam3CSK4), monophosphoryl lipid A (MPLA) and CpG oligodeoxynucleotides (CpG ODN) as well as GPI-0100 tolerated the process of spray freeze-drying well. While Pam3CSK4 had no effect on systemic antibody titers, all the other adjuvants significantly increased influenza-specific serum and lung IgG titers. Yet, only GPI-0100 also enhanced mucosal IgA titers. Moreover, only GPI-0100-adjuvanted WIV provided partial protection against heterologous virus challenge. Pulmonary immunization with GPI-0100-adjuvanted vaccine did not induce an overt inflammatory response since influx of neutrophils and production of inflammatory cytokines were moderate and transient and lung histology was normal. Our results indicate that a GPI-0100-adjuvanted dry powder influenza vaccine is a safe and effective alternative to current parenteral vaccines.
Collapse
|
41
|
Wu SC, Fu BD, Shen HQ, Yi PF, Zhang LY, Lv S, Guo X, Xia F, Wu YL, Wei XB. Telocinobufagin enhances the Th1 immune response and protects against Salmonella typhimurium infection. Int Immunopharmacol 2015; 25:353-62. [PMID: 25687199 DOI: 10.1016/j.intimp.2015.02.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2014] [Revised: 01/24/2015] [Accepted: 02/03/2015] [Indexed: 11/19/2022]
Abstract
Ideal potential vaccine adjuvants to stimulate a Th1 immune response are urgently needed to control intracellular infections in clinical applications. Telocinobufagin (TBG), an active component of Venenum bufonis, exhibits immunomodulatory activity. Therefore, we investigated whether TBG enhances the Th1 immune response to ovalbumin (OVA) and formalin-inactivated Salmonella typhimurium (FIST) in mice. TBG augmented serum OVA- and FIST-specific IgG and IgG2a and the production of IFNγ by antigen-restimulated splenocytes. TBG also dramatically enhanced splenocyte proliferative responses to concanavalin A, lipopolysaccharide, and OVA and substantially increased T-bet mRNA levels and the CD3(+)/CD3(+)CD4(+)/CD3(+)CD8(+) phenotype in splenocytes from OVA-immunized mice. In in vivo protection studies, TBG significantly decreased the bacterial burdens in the spleen and prolonged the survival time of FIST-immunized mice challenged with live S. typhimurium. In vivo neutralization of IFNγ with anti-IFNγ mAbs led to a significant reduction in FIST-specific IgG2a and IFNγ levels and in anti-Salmonella effect in TBG/FIST-immunized mice. In conclusion, these results suggest that TBG enhances a Th1 immune response to control intracellular infections.
Collapse
Affiliation(s)
- Shuai-Cheng Wu
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, No. 5333, Xi'an Road, Changchun, Jilin 130062, PR China
| | - Ben-Dong Fu
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, No. 5333, Xi'an Road, Changchun, Jilin 130062, PR China
| | - Hai-Qing Shen
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, No. 5333, Xi'an Road, Changchun, Jilin 130062, PR China
| | - Peng-Fei Yi
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, No. 5333, Xi'an Road, Changchun, Jilin 130062, PR China
| | - Li-Yan Zhang
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, No. 5333, Xi'an Road, Changchun, Jilin 130062, PR China
| | - Shuang Lv
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, No. 5333, Xi'an Road, Changchun, Jilin 130062, PR China
| | - Xun Guo
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, No. 5333, Xi'an Road, Changchun, Jilin 130062, PR China
| | - Fang Xia
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, No. 5333, Xi'an Road, Changchun, Jilin 130062, PR China
| | - Yong-Li Wu
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, No. 5333, Xi'an Road, Changchun, Jilin 130062, PR China
| | - Xu-Bin Wei
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, No. 5333, Xi'an Road, Changchun, Jilin 130062, PR China.
| |
Collapse
|
42
|
Balance of cellular and humoral immunity determines the level of protection by HIV vaccines in rhesus macaque models of HIV infection. Proc Natl Acad Sci U S A 2015; 112:E992-9. [PMID: 25681373 DOI: 10.1073/pnas.1423669112] [Citation(s) in RCA: 104] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
A guiding principle for HIV vaccine design has been that cellular and humoral immunity work together to provide the strongest degree of efficacy. However, three efficacy trials of Ad5-vectored HIV vaccines showed no protection. Transmission was increased in two of the trials, suggesting that this vaccine strategy elicited CD4+ T-cell responses that provide more targets for infection, attenuating protection or increasing transmission. The degree to which this problem extends to other HIV vaccine candidates is not known. Here, we show that a gp120-CD4 chimeric subunit protein vaccine (full-length single chain) elicits heterologous protection against simian-human immunodeficiency virus (SHIV) or simian immunodeficiency virus (SIV) acquisition in three independent rhesus macaque repeated low-dose rectal challenge studies with SHIV162P3 or SIVmac251. Protection against acquisition was observed with multiple formulations and challenges. In each study, protection correlated with antibody-dependent cellular cytotoxicity specific for CD4-induced epitopes, provided that the concurrent antivaccine T-cell responses were minimal. Protection was lost in instances when T-cell responses were high or when the requisite antibody titers had declined. Our studies suggest that balance between a protective antibody response and antigen-specific T-cell activation is the critical element to vaccine-mediated protection against HIV. Achieving and sustaining such a balance, while enhancing antibody durability, is the major challenge for HIV vaccine development, regardless of the immunogen or vaccine formulation.
Collapse
|
43
|
Immunomodulatory and anticancer effects of Pituranthos tortuosus essential oil. Tumour Biol 2015; 36:5165-70. [PMID: 25663463 DOI: 10.1007/s13277-015-3170-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2014] [Accepted: 01/26/2015] [Indexed: 01/06/2023] Open
Abstract
Many studies have been performed to assess potential utility of natural products as immunomodulants to enhance antitumor activity in situ. In this study, an essential oil (EO) from the aerial parts of Pituranthos tortuosus was prepared using hydrodistillation, its composition was characterized, and its immunomodulatory potential was assessed. The results indicated that the EO contained sabinene, α-pinene, limonene, and terpinen-4-ol as major constituents. EO was also found to be able to significantly promote lipopolysaccharide (LPS)-stimulated splenocyte proliferation, suggestive of a potential for activation of B cells and enhanced humoral immune responses in hosts given this product. Effects of EO on cell proliferation and apoptosis were also investigated in B16F10 melanoma cells. EO-induced tumor cell growth inhibition was associated with characteristic apoptotic changes in the cells, including nuclear condensation. In conclusion, these data suggested to us that an EO of P. tortuosus could evolve to be a potential medicinal resource for use in the treatment of cancers.
Collapse
|
44
|
Jung JY, Shin JS, Rhee Y, Cho CW, Lee MK, Hong HD, Lee KT. In vitro
and in vivo
immunostimulatory activity of an exopolysaccharide-enriched fraction from Bacillus subtilis. J Appl Microbiol 2015; 118:739-52. [DOI: 10.1111/jam.12742] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2014] [Revised: 10/24/2014] [Accepted: 12/22/2014] [Indexed: 12/15/2022]
Affiliation(s)
- J.-Y. Jung
- Department of Pharmaceutical Biochemistry; College of Pharmacy; Kyung Hee University; Seoul Republic of Korea
- Department of Life and Nanopharmaceutical Science; Kyung Hee University; Seoul Republic of Korea
| | - J.-S. Shin
- Department of Pharmaceutical Biochemistry; College of Pharmacy; Kyung Hee University; Seoul Republic of Korea
- Reactive Oxygen Species Medical Research Center; School of Medicine; Kyung Hee University; Seoul Republic of Korea
| | - Y.K. Rhee
- Korea Food Research Institute; Seongnam Republic of Korea
| | - C.-W. Cho
- Korea Food Research Institute; Seongnam Republic of Korea
| | - M.-K. Lee
- Korea Food Research Institute; Seongnam Republic of Korea
| | - H.-D. Hong
- Korea Food Research Institute; Seongnam Republic of Korea
| | - K.-T. Lee
- Department of Pharmaceutical Biochemistry; College of Pharmacy; Kyung Hee University; Seoul Republic of Korea
- Department of Life and Nanopharmaceutical Science; Kyung Hee University; Seoul Republic of Korea
| |
Collapse
|
45
|
Peng S, Wang JW, Karanam B, Wang C, Huh WK, Alvarez RD, Pai SI, Hung CF, Wu TC, Roden RBS. Sequential cisplatin therapy and vaccination with HPV16 E6E7L2 fusion protein in saponin adjuvant GPI-0100 for the treatment of a model HPV16+ cancer. PLoS One 2015; 10:e116389. [PMID: 25560237 PMCID: PMC4283968 DOI: 10.1371/journal.pone.0116389] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2014] [Accepted: 12/08/2014] [Indexed: 12/21/2022] Open
Abstract
Clinical studies suggest that responses to HPV16 E6E7L2 fusion protein (TA-CIN) vaccination alone are modest, and GPI-0100 is a well-tolerated, potent adjuvant. Here we sought to optimize both the immunogenicity of TA-CIN via formulation with GPI-0100 and treatment of HPV16+ cancer by vaccination after cisplatin chemotherapy. HPV16 neutralizing serum antibody titers, CD4+ T cell proliferative and E6/E7-specific CD8+ T cell responses were significantly enhanced when mice were vaccinated subcutaneously (s.c.) or intramuscularly (i.m.) with TA-CIN formulated with GPI-0100. Vaccination was tested for therapy of mice bearing syngeneic HPV16 E6/E7+ tumors (TC-1) either in the lung or subcutaneously. Mice treated with TA-CIN/GPI-0100 vaccination exhibited robust E7-specific CD8+ T cell responses, which were associated with reduced tumor burden in the lung, whereas mice receiving either component alone were similar to controls. Since vaccination alone was not sufficient for cure, mice bearing s.c. TC-1 tumor were first treated with two doses of cisplatin and then vaccinated. Vaccination with TA-CIN/GPI-0100 i.m. substantially retarded tumor growth and extended survival after cisplatin therapy. Injection of TA-CIN alone, but not GPI-0100, into the tumor (i.t.) was similarly efficacious after cisplatin therapy, but the mice eventually succumbed. However, tumor regression and extended remission was observed in 80% of the mice treated with cisplatin and then intra-tumoral TA-CIN/GPI-0100 vaccination. These mice also exhibited robust E7-specific CD8+ T cell and HPV16 neutralizing antibody responses. Thus formulation of TA-CIN with GPI-0100 and intra-tumoral delivery after cisplatin treatment elicits potent therapeutic responses in a murine model of HPV16+ cancer.
Collapse
Affiliation(s)
- Shiwen Peng
- Department of Pathology, The Johns Hopkins University, Baltimore, Maryland, United States of America
| | - Joshua W. Wang
- Department of Pathology, The Johns Hopkins University, Baltimore, Maryland, United States of America
| | - Balasubramanyam Karanam
- Department of Pathology, The Johns Hopkins University, Baltimore, Maryland, United States of America
- Department of Biology and Center for Cancer Research, Carver Research Foundation, Tuskegee University, Tuskegee, Alabama, United States of America
| | - Chenguang Wang
- Department of Biostatistics, The Johns Hopkins University, Baltimore, Maryland, United States of America
| | - Warner K. Huh
- Division of Gynecologic Oncology, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - Ronald D. Alvarez
- Division of Gynecologic Oncology, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - Sara I. Pai
- Department of Surgery, Massachusetts General Hospital, Boston, Massachusetts, United States of America
| | - Chien-fu Hung
- Department of Pathology, The Johns Hopkins University, Baltimore, Maryland, United States of America
- Department of Oncology, The Johns Hopkins University, Baltimore, Maryland, United States of America
| | - T. -C. Wu
- Department of Pathology, The Johns Hopkins University, Baltimore, Maryland, United States of America
- Department of Oncology, The Johns Hopkins University, Baltimore, Maryland, United States of America
- Department of Gynecology and Obstetrics, The Johns Hopkins University, Baltimore, Maryland, United States of America
| | - Richard B. S. Roden
- Department of Pathology, The Johns Hopkins University, Baltimore, Maryland, United States of America
- Department of Oncology, The Johns Hopkins University, Baltimore, Maryland, United States of America
- Department of Gynecology and Obstetrics, The Johns Hopkins University, Baltimore, Maryland, United States of America
- * E-mail:
| |
Collapse
|
46
|
Effect of Taurine on Viability and Proliferation of Murine Melanoma B16F10 Cells. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2015; 803:167-77. [DOI: 10.1007/978-3-319-15126-7_15] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/27/2023]
|
47
|
Liu YM, Li ZY, Hu H, Xu SP, Chang Q, Liao YH, Pan RL, Liu XM. Tenuifolin, a secondary saponin from hydrolysates of polygalasaponins, counteracts the neurotoxicity induced by Aβ25-35 peptides in vitro and in vivo. Pharmacol Biochem Behav 2015; 128:14-22. [PMID: 25444865 DOI: 10.1016/j.pbb.2014.11.010] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Revised: 10/31/2014] [Accepted: 11/07/2014] [Indexed: 12/28/2022]
Abstract
Alzheimer's disease (AD) is associated with damage to hippocampal neurons and declines in cognitive functions. The accumulation of amyloid peptides is regarded as a crucial event in the initiation of AD. The neurotoxicity induced by Aβ25-35 peptides was used to screen for cytoprotective factors in vitro, and the cognitive deficits induced by the injection of Aβ25-35 into the hippocampus were used to evaluate effect on learning and memory. Our previous study revealed that hydrolysate of polygalasaponins (HPS) clearly improve the cognitive deficits induced by the injection of Aβ25-35 in mice, but the potential active constituent of HPS remains unclear. The purposes of this study were to separate and purify the secondary saponins of HPS, screen for neuroprotective effects of the constituents in vitro, and to evaluate the effect of cognition in vivo. Various chromatographic methods were used to separate and purify the HPS. The neuroprotective effects were examined in Aβ25-35-damage-induced PC12 cells. The protective effect of tenuifolin on the cognitive impairments induced by Aβ25-35 injection was assessed using the Morris water maze and step-through passive avoidance tests. Tenuifolin and fallaxsaponin A were isolated from the HPS. Tenuifolin possessed neuroprotective effects against Aβ25-35-induced apoptosis in PC12 cells and significantly improved the cognitive deficits induced by the intrahippocampal injection of Aβ25-35 in mice. Thus, tenuifolin is one of the active constituents of HPS against the neurotoxicity induced by Aβ25-35 peptides in vitro and in vivo.
Collapse
Affiliation(s)
- Ya-min Liu
- Natural Medicine Chemistry Research Center, Institute of Medicinal Plant Development, Chinese Academy of Medical Science, Peking Union Medical College, Beijing 100193, China
| | - Zong-yang Li
- Natural Medicine Chemistry Research Center, Institute of Medicinal Plant Development, Chinese Academy of Medical Science, Peking Union Medical College, Beijing 100193, China
| | - Han Hu
- Department of Biochemistry and Molecular Biology, Peking University Health Science Center, 38 Xueyuan Road, Beijing 100191, China
| | - Shu-ping Xu
- Research Center for Pharmacology and Toxicology, Institute of Medicinal Plant Development, Chinese Academy of Medical Science, Peking Union Medical College, Beijing 100193, China
| | - Qi Chang
- Research Center for Pharmacology and Toxicology, Institute of Medicinal Plant Development, Chinese Academy of Medical Science, Peking Union Medical College, Beijing 100193, China
| | - Yong-hong Liao
- Natural Medicine Chemistry Research Center, Institute of Medicinal Plant Development, Chinese Academy of Medical Science, Peking Union Medical College, Beijing 100193, China
| | - Rui-le Pan
- Natural Medicine Chemistry Research Center, Institute of Medicinal Plant Development, Chinese Academy of Medical Science, Peking Union Medical College, Beijing 100193, China.
| | - Xin-min Liu
- Research Center for Pharmacology and Toxicology, Institute of Medicinal Plant Development, Chinese Academy of Medical Science, Peking Union Medical College, Beijing 100193, China.
| |
Collapse
|
48
|
Wang L, Hu X, Bi S, Tu W, Jing Y, Song L, Lv W, Yu R. A novel polysaccharide isolated from Litchi chinensis by using a simulated gastric medium and its immunomodulatory activity. Drug Discov Ther 2015; 9:107-15. [DOI: 10.5582/ddt.2015.01023] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Lishan Wang
- Biotechnological Institute of Chinese Materia Medica, Jinan University
| | - Xianjing Hu
- Department of Pharmacology, Jinan University
| | - Sixue Bi
- Department of Pharmacology, Jinan University
| | - Wensong Tu
- Biotechnological Institute of Chinese Materia Medica, Jinan University
| | - Yongshuai Jing
- Biotechnological Institute of Chinese Materia Medica, Jinan University
| | - Liyan Song
- Department of Pharmacology, Jinan University
| | - Wenjie Lv
- Biotechnological Institute of Chinese Materia Medica, Jinan University
| | - Rongmin Yu
- Biotechnological Institute of Chinese Materia Medica, Jinan University
| |
Collapse
|
49
|
Xue Z, Zhai L, Yu W, Wang H, Kou X, Peng L, Hu D. Antitumor and Immunomodulatory Activity of P
leurotus eryngii
Extract. J Food Biochem 2014. [DOI: 10.1111/jfbc.12096] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Zhaohui Xue
- School of Chemical Engineering and Technology; Tianjin University; Tianjin 300072 China
| | - Lijuan Zhai
- School of Chemical Engineering and Technology; Tianjin University; Tianjin 300072 China
| | - Wancong Yu
- Medical Plant Lab; Tianjin Research Center of Agricultural Biotechnology; Tianjin China
| | - Hua Wang
- School of Chemical Engineering and Technology; Tianjin University; Tianjin 300072 China
| | - Xiaohong Kou
- School of Chemical Engineering and Technology; Tianjin University; Tianjin 300072 China
| | - Lvyang Peng
- School of Chemical Engineering and Technology; Tianjin University; Tianjin 300072 China
| | - Dongmei Hu
- School of Chemical Engineering and Technology; Tianjin University; Tianjin 300072 China
| |
Collapse
|
50
|
Sun H, He S, Shi M. Adjuvant-active fraction from Albizia julibrissin saponins improves immune responses by inducing cytokine and chemokine at the site of injection. Int Immunopharmacol 2014; 22:346-55. [DOI: 10.1016/j.intimp.2014.07.021] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2014] [Revised: 06/28/2014] [Accepted: 07/16/2014] [Indexed: 11/26/2022]
|