1
|
Lasso P, Rojas L, Arévalo C, Urueña C, Murillo N, Barreto A, Costa GM, Fiorentino S. Tillandsia usneoides Extract Decreases the Primary Tumor in a Murine Breast Cancer Model but Not in Melanoma. Cancers (Basel) 2022; 14:5383. [PMID: 36358804 PMCID: PMC9656114 DOI: 10.3390/cancers14215383] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 10/26/2022] [Accepted: 10/28/2022] [Indexed: 08/01/2023] Open
Abstract
The main limits of current antitumor therapies are chemoresistance, relapses, and toxicity that impair patient quality of life. Therefore, the discovery of therapeutic alternatives, such as adjuvants to conventional therapy that modulate the intracellular oxidation state or the immune response, remains a challenge. Owing to traditional medicine, several uses of plants are known, indicating a promising antitumor and immunomodulatory effect. We evaluated the effect of ethanolic extract of T. usneoides in vitro and in vivo in models of 4T1 breast cancer and B16-F10 melanoma. In vitro evaluations with both cell lines showed that the extract has cytotoxic activity and induces apoptotic cell death. However, its effect on ROS production and glucose uptake was opposite. In vivo, only in the 4T1 model, a significant decrease in tumor size was found in animals treated with the extract, accompanied by an increase in dendritic cells and activated CD8+ T cells, and a decrease in myeloid-derived suppressor-like cells (MDSC-LC) and Tregs in the tumor microenvironment. These results suggest that T. usneoides extract antagonistically regulates tumor metabolism of 4T1 vs. B16-F10, impacting the tumor microenvironment and effective antitumor immune response, leading to a reduction in 4T1 tumor size but not on B16-F10.
Collapse
Affiliation(s)
- Paola Lasso
- Grupo de Inmunobiología y Biología Celular, Pontificia Universidad Javeriana, Bogotá 110231, Colombia
| | - Laura Rojas
- Grupo de Inmunobiología y Biología Celular, Pontificia Universidad Javeriana, Bogotá 110231, Colombia
| | - Cindy Arévalo
- Grupo de Inmunobiología y Biología Celular, Pontificia Universidad Javeriana, Bogotá 110231, Colombia
| | - Claudia Urueña
- Grupo de Inmunobiología y Biología Celular, Pontificia Universidad Javeriana, Bogotá 110231, Colombia
| | - Natalia Murillo
- Grupo de Inmunobiología y Biología Celular, Pontificia Universidad Javeriana, Bogotá 110231, Colombia
| | - Alfonso Barreto
- Grupo de Inmunobiología y Biología Celular, Pontificia Universidad Javeriana, Bogotá 110231, Colombia
| | - Geison M. Costa
- Grupo de Investigación en Fitoquímica, Pontificia Universidad Javeriana, Bogotá 110231, Colombia
| | - Susana Fiorentino
- Grupo de Inmunobiología y Biología Celular, Pontificia Universidad Javeriana, Bogotá 110231, Colombia
| |
Collapse
|
2
|
Liu Q, Yang Y, Cheng M, Cheng F, Chen S, Zheng Q, Sun Y, Chen L. The marine natural product, dicitrinone B, induces apoptosis through autophagy blockade in breast cancer. Int J Mol Med 2022; 50:130. [PMID: 36052845 PMCID: PMC9448296 DOI: 10.3892/ijmm.2022.5186] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 08/11/2022] [Indexed: 12/24/2022] Open
Abstract
Being a highly conserved catabolic process, autophagy is induced by various forms of cellular stress, and its modulation has considerable potential as a cancer therapeutic approach. In the present study, it was demonstrated that dicitrinone B (DB), a rare carbon-bridged citrinin dimer, may exert anticancer effects by blocking autophagy at a late stage, without disrupting lysosomal function in MCF7 breast cancer and MDA-MB-231 triple-negative breast cancer cells. Furthermore, it was discovered that DB significantly enhanced intracellular reactive oxygen species (ROS) production and that the removal of ROS was followed by the attenuation of autophagy inhibition. In addition, DB exerted notable inhibitory effects on the proliferation and promoting effects on the apoptosis of MCF7 and MDA-MB-231 cells. In combination with conventional chemotherapeutic drugs, DB exhibited a further enhanced synergistic effect than when used as a single agent. Overall, the data of the present study demonstrate that DB may prove to be a promising autophagy inhibitor with anticancer activity against breast cancer.
Collapse
Affiliation(s)
- Qinying Liu
- Fujian Provincial Key Laboratory of Tumor Biotherapy, Fujian Medical University Cancer Hospital and Fujian Cancer Hospital, Fuzhou, Fujian 350014, P.R. China
| | - Yi Yang
- Fujian Provincial Key Laboratory of Medical Instrument and Pharmaceutical Technology, College of Biological Science and Technology, Fuzhou University, Fuzhou, Fujian 350108, P.R. China
| | - Miaomiao Cheng
- Fujian Provincial Key Laboratory of Medical Instrument and Pharmaceutical Technology, College of Biological Science and Technology, Fuzhou University, Fuzhou, Fujian 350108, P.R. China
| | - Fangting Cheng
- Fujian Provincial Key Laboratory of Medical Instrument and Pharmaceutical Technology, College of Biological Science and Technology, Fuzhou University, Fuzhou, Fujian 350108, P.R. China
| | - Shanshan Chen
- Fujian Provincial Key Laboratory of Tumor Biotherapy, Fujian Medical University Cancer Hospital and Fujian Cancer Hospital, Fuzhou, Fujian 350014, P.R. China
| | - Qiuhong Zheng
- Fujian Provincial Key Laboratory of Tumor Biotherapy, Fujian Medical University Cancer Hospital and Fujian Cancer Hospital, Fuzhou, Fujian 350014, P.R. China
| | - Yang Sun
- Fujian Provincial Key Laboratory of Tumor Biotherapy, Fujian Medical University Cancer Hospital and Fujian Cancer Hospital, Fuzhou, Fujian 350014, P.R. China
| | - Li Chen
- Fujian Provincial Key Laboratory of Medical Instrument and Pharmaceutical Technology, College of Biological Science and Technology, Fuzhou University, Fuzhou, Fujian 350108, P.R. China
| |
Collapse
|
3
|
Immunoenhancing Effects of Cyclina sinensis Pentadecapeptide through Modulation of Signaling Pathways in Mice with Cyclophosphamide-Induced Immunosuppression. Mar Drugs 2022; 20:md20090560. [PMID: 36135750 PMCID: PMC9505337 DOI: 10.3390/md20090560] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 08/28/2022] [Accepted: 08/28/2022] [Indexed: 11/17/2022] Open
Abstract
Our study aimed to investigate the immune-enhancing mechanism of the pentadecapeptide (RVAPEEHPVEGRYLV) from Cyclina sinensis (SCSP) in a cyclophosphamide (CTX)-induced murine model of immunosuppression. Our results showed that SCSP treatment significantly increased mouse body weight, immune organ indices, and the production of serum IL-6, IL-1β, and tumor necrosis factor (TNF)-α in CTX-treated mice. In addition, SCSP treatment enhanced the proliferation of splenic lymphocytes and peritoneal macrophages, as well as phagocytosis of the latter in a dose-dependent manner. Moreover, SCSP elevated the phosphorylation levels of p38, ERK, JNK, PI3K and Akt, and up-regulated IKKα, IKKβ, p50 NF-κB and p65 NF-κB protein levels, while down-regulating IκBα protein levels. Our results indicate that SCSP has immune-enhancing activities, and that it can activate the MAPK/NF-κB and PI3K/Akt pathways to enhance immunity in CTX-induced immunosuppressed mice.
Collapse
|
4
|
Park YM, Lee HY, Shin DY, Kim DS, Yoo JJ, Yang HJ, Kim MJ, Bae JS. Immune-Enhancing Effects of Co-treatment With Kalopanax pictus Nakai Bark and Nelumbo nucifera Gaertner Leaf Extract in a Cyclophosphamide-Induced Immunosuppressed Rat Model. Front Nutr 2022; 9:898417. [PMID: 35662944 PMCID: PMC9161550 DOI: 10.3389/fnut.2022.898417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 04/29/2022] [Indexed: 11/29/2022] Open
Abstract
Objective Immune system disorders can result in various pathological conditions, such as infections and cancer. Identifying therapies that enhance the immune response might be crucial for immunocompromised individuals. Therefore, we assessed the immune-enhancing effect of co-treatment with Kalopanax pictus Nakai Bark and Nelumbo nucifera Gaertner leaf extract (KPNN) in a cyclophosphamide (Cy)-induced immunosuppressed rat model. Materials and Methods For in vitro studies, macrophages and splenocytes were treated with various KPNN doses in the presence or absence of Cy. Macrophage viability, nitric oxide production, splenocyte viability, cytokine production and natural killer (NK) cell activity were analyzed. For in vivo studies, analysis of weekly body weight, dietary intake, tissue weight, immune-related blood cell count, cytokine levels, and spleen biopsy was performed in a Cy-induced immunocompromised animal model. Results KPNN significantly increased phospho-NF-κB and phospho-ERK protein levels and cell viability in macrophages. KPNN significantly increased the NK cell activity in splenocytes compared to that in the control. Cy treatment decreased tumor necrosis factor (TNF)-α, interleukin (IL)-6, and interferon-γ production. In the Cy-induced immunosuppression rat model, KPNN-treated rats had significantly higher body weights and tissue weights than the Cy-treated rats. Additionally, KPNN treatment restored the immune-related factors, such as total leukocyte, lymphocyte, and intermediate cell contents, to their normal levels in the blood. The blood cytokines (TNF-α and IL-6) were increased, and spleen tissue damage was significantly alleviated. Conclusions Collectively, KPNN exerts an immune-enhancing effect suggesting their potential as an immunostimulatory agent or functional food.
Collapse
Affiliation(s)
| | | | | | - Dae Sung Kim
- Central Research and Development, Hanpoong Pharm & Foods Co., Ltd., Wanju-gun, South Korea
| | - Jin Joo Yoo
- Central Research and Development, Hanpoong Pharm & Foods Co., Ltd., Wanju-gun, South Korea
| | | | - Min Jung Kim
- Korea Food Research Institute, Wanju-gun, South Korea
| | - Jun Sang Bae
- Department of Pathology, College of Korean Medicine, Wonkwang University, Iksan, South Korea
| |
Collapse
|
5
|
Wainwright CL, Teixeira MM, Adelson DL, Buenz EJ, David B, Glaser KB, Harata-Lee Y, Howes MJR, Izzo AA, Maffia P, Mayer AM, Mazars C, Newman DJ, Nic Lughadha E, Pimenta AM, Parra JA, Qu Z, Shen H, Spedding M, Wolfender JL. Future Directions for the Discovery of Natural Product-Derived Immunomodulating Drugs. Pharmacol Res 2022; 177:106076. [PMID: 35074524 DOI: 10.1016/j.phrs.2022.106076] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Accepted: 01/07/2022] [Indexed: 02/06/2023]
Abstract
Drug discovery from natural sources is going through a renaissance, having spent many decades in the shadow of synthetic molecule drug discovery, despite the fact that natural product-derived compounds occupy a much greater chemical space than those created through synthetic chemistry methods. With this new era comes new possibilities, not least the novel targets that have emerged in recent times and the development of state-of-the-art technologies that can be applied to drug discovery from natural sources. Although progress has been made with some immunomodulating drugs, there remains a pressing need for new agents that can be used to treat the wide variety of conditions that arise from disruption, or over-activation, of the immune system; natural products may therefore be key in filling this gap. Recognising that, at present, there is no authoritative article that details the current state-of-the-art of the immunomodulatory activity of natural products, this in-depth review has arisen from a joint effort between the International Union of Basic and Clinical Pharmacology (IUPHAR) Natural Products and Immunopharmacology, with contributions from a Powered by Editorial Manager® and ProduXion Manager® from Aries Systems Corporation number of world-leading researchers in the field of natural product drug discovery, to provide a "position statement" on what natural products has to offer in the search for new immunomodulatory argents. To this end, we provide a historical look at previous discoveries of naturally occurring immunomodulators, present a picture of the current status of the field and provide insight into the future opportunities and challenges for the discovery of new drugs to treat immune-related diseases.
Collapse
Affiliation(s)
- Cherry L Wainwright
- Centre for Natural Products in Health, Robert Gordon University, Aberdeen, UK.
| | - Mauro M Teixeira
- Department of Biochemistry and Immunology, Universidade Federal de Minas Gerais, Brazil.
| | - David L Adelson
- Molecular & Biomedical Science, University of Adelaide, Australia.
| | - Eric J Buenz
- Nelson Marlborough Institute of Technology, New Zealand.
| | - Bruno David
- Green Mission Pierre Fabre, Pierre Fabre Laboratories, Toulouse, France.
| | - Keith B Glaser
- AbbVie Inc., Integrated Discovery Operations, North Chicago, USA.
| | - Yuka Harata-Lee
- Molecular & Biomedical Science, University of Adelaide, Australia
| | - Melanie-Jayne R Howes
- Royal Botanic Gardens Kew, Richmond, Surrey, UK; Institute of Pharmaceutical Science, Faculty of Life Sciences & Medicine, King's College London, UK.
| | - Angelo A Izzo
- Department of Pharmacy, School of Medicine, University of Naples Federico II, Italy.
| | - Pasquale Maffia
- Department of Pharmacy, School of Medicine, University of Naples Federico II, Italy; Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, UK.
| | - Alejandro Ms Mayer
- Department of Pharmacology, College of Graduate Studies, Midwestern University, IL, USA.
| | - Claire Mazars
- Green Mission Pierre Fabre, Pierre Fabre Laboratories, Toulouse, France.
| | | | | | - Adriano Mc Pimenta
- Laboratory of Animal Venoms and Toxins, Department of Biochemistry and Immunology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil.
| | - John Aa Parra
- Laboratory of Animal Venoms and Toxins, Department of Biochemistry and Immunology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Zhipeng Qu
- Molecular & Biomedical Science, University of Adelaide, Australia
| | - Hanyuan Shen
- Molecular & Biomedical Science, University of Adelaide, Australia
| | | | - Jean-Luc Wolfender
- School of Pharmaceutical Sciences, University of Geneva, Switzerland; Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, Switzerland.
| |
Collapse
|
6
|
Han JM, Song HY, Seo HS, Byun EH, Lim ST, Kim WS, Byun EB. Immunoregulatory properties of a crude extraction fraction rich in polysaccharide from Chrysanthemum zawadskii Herbich var. latilobum and its potential role as a vaccine adjuvant. Int Immunopharmacol 2021; 95:107513. [PMID: 33756223 DOI: 10.1016/j.intimp.2021.107513] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 01/28/2021] [Accepted: 02/14/2021] [Indexed: 02/07/2023]
Abstract
The objective of the current study was to demonstrate the immunostimulatory effects of a polysaccharide isolated from Chrysanthemum zawadskii Herbich var. latilobum leaves (CP) and evaluate its potential as a vaccine adjuvant. Results showed that CP induced maturation of the dendritic cells (DCs). In addition, CP-treated DCs activated naïve T cells to polarized CD4+ and CD8+ T cells and substantially induced the production of IFN-γ and IL-2 in vitro. Furthermore, CP initiated the maturation of DCs via the activation of MAPK and NF-κB signaling pathways. Interestingly, systemic administration of CP-treated DCs pulsed with ovalbumin (OVA) peptides significantly enhanced the immune response in vivo, which included the generation of antigen (OVA)-specific polyfunctional T cells, increased cytotoxic T lymphocyte activity, induction of Th1-mediated humoral immunity, and suppression of tumor growth. Taken together, our study highlighted the immunoregulatory activity of CP as well as its potential as a candidate vaccine adjuvant.
Collapse
Affiliation(s)
- Jeong Moo Han
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup 580-185, Republic of Korea; Department of Biotechnology, College of Life Science and Biotechnology, Korea University, Seoul 136-701, Republic of Korea
| | - Ha-Yeon Song
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup 580-185, Republic of Korea; Department of Biotechnology, College of Life Science and Biotechnology, Korea University, Seoul 136-701, Republic of Korea
| | - Ho Seong Seo
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup 580-185, Republic of Korea
| | - Eui-Hong Byun
- Department of Food Science and Technology, Kongju National University, Yesan 340-800, Republic of Korea
| | - Seung-Taik Lim
- Department of Biotechnology, College of Life Science and Biotechnology, Korea University, Seoul 136-701, Republic of Korea
| | - Woo Sik Kim
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, Jeollabuk-do 56212, Republic of Korea
| | - Eui-Baek Byun
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup 580-185, Republic of Korea.
| |
Collapse
|
7
|
Microbiota Modulates the Immunomodulatory Effects of Filifolinone on Atlantic Salmon. Microorganisms 2020; 8:microorganisms8091320. [PMID: 32872599 PMCID: PMC7564783 DOI: 10.3390/microorganisms8091320] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 08/21/2020] [Accepted: 08/26/2020] [Indexed: 02/06/2023] Open
Abstract
Filifolinone is an aromatic geranyl derivative, a natural compound isolated from Heliotropum sclerocarpum, which has immunomodulatory effects on Atlantic salmon, upregulating cytokines involved in Th1-type responses through a mechanism that remains unknown. In this work, we determined whether the immunomodulatory effects of filifolinone depend on the host microbiotic composition. We evaluated the effect of filifolinone on immune genes and intestinal microbiotic composition of normal fish and fish previously treated with bacitracin/neomycin. Filifolinone induced the early expression of IFN-α1 and TGF-β, followed by the induction of TNF-α, IL-1β, and IFN-γ. A pre-treatment with antibiotics modified this effect, mainly changing the expression of IL-1β and IFN-γ. The evaluation of microbial diversity shows that filifolinone modifies the composition of intestinal microbiota, increasing the abundance of immunostimulating organisms like yeast and firmicutes. We identified 69 operational taxonomic units (OTUs) associated with filifolinone-induced IFN-γ. Our results indicate that filifolinone stimulates the immune system in two ways, one dependent on fish microbiota and the other not. To our knowledge, this is the first report of microbiota-dependent immunostimulation in Salmonids.
Collapse
|
8
|
Xu W, Chen S, Wang X, Tanaka S, Onda K, Sugiyama K, Yamada H, Hirano T. Molecular mechanisms and therapeutic implications of tetrandrine and cepharanthine in T cell acute lymphoblastic leukemia and autoimmune diseases. Pharmacol Ther 2020; 217:107659. [PMID: 32800789 DOI: 10.1016/j.pharmthera.2020.107659] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Indexed: 02/08/2023]
Abstract
Inappropriately activated T cells mediate autoimmune diseases and T cell acute lymphoblastic leukemia (T-ALL). Glucocorticoid and chemotherapeutic agents have largely extended lives of these patients. However, serious side effects and drug resistance often limit the prognosis of considerable number of the patients. The efficient treatment of autoimmune diseases or T-ALL with drug resistance remains an important unmet demand clinically. Bisbenzylisoquinoline alkaloids tetrandrine and cepharanthine have been applied for the treatment of certain types of autoimmune diseases and cancers, while studies on their action mechanisms and their further applications combined with glucocorticoids or chemotherapeutic agents remains to be expanded. This review introduced molecular mechanisms of tetrandrine and cepharanthine in T cells, including their therapeutic implications. Both tetrandrine and cepharnthine influence the growth of activated T cells via several kinds of signaling pathways, such as NF-κB, caspase cascades, cell cycle, MAPK, and PI3K/Akt/mTOR. According to recent preclinical and clinical studies, P-glycoprotein inhibitory effect of tetrandrine and cepharnthine could play a significant role on T cell-involved refractory diseases. Therefore, tetrandrine or cepharanthine combined with glucocorticoid or other anti-leukemia drugs would bring a new hope for patients with glucocorticoid-resistant autoimmune disease or refractory T-ALL accompanied with functional P-glycoprotein. In conclusion, bisbenzylisoquinoline alkaloids tetrandrine and cepharanthine can regulate several signaling pathways in abnormally activated T cells with low toxicity. Bisbenzylisoquinoline alkaloids deserve to be paid more attention as a lead compound to develop new drugs for the treatment of T cell-involved diseases in the future.
Collapse
Affiliation(s)
- Wencheng Xu
- Department of Pharmacy, Hubei Provincial Hospital of Traditional Chinese Medicine, Wuhan, PR China; Institute of Traditional Chinese Medicine, Hubei Province Academy of Traditional Chinese Medicine, Wuhan, PR China
| | - Shuhe Chen
- Department of Pharmacy, Hubei Provincial Hospital of Traditional Chinese Medicine, Wuhan, PR China; Institute of Traditional Chinese Medicine, Hubei Province Academy of Traditional Chinese Medicine, Wuhan, PR China
| | - Xiaoqin Wang
- Department of Nephrology, Hubei Provincial Hospital of Traditional Chinese Medicine, Wuhan, PR China.
| | - Sachiko Tanaka
- Department of Clinical Pharmacology, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Kenji Onda
- Department of Clinical Pharmacology, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Kentaro Sugiyama
- Department of Clinical Pharmacology, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Haruki Yamada
- Department of Clinical Pharmacology, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan.
| | - Toshihiko Hirano
- Department of Clinical Pharmacology, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan.
| |
Collapse
|
9
|
Salminen A, Kaarniranta K, Kauppinen A. Phytochemicals inhibit the immunosuppressive functions of myeloid-derived suppressor cells (MDSC): Impact on cancer and age-related chronic inflammatory disorders. Int Immunopharmacol 2018; 61:231-240. [DOI: 10.1016/j.intimp.2018.06.005] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 06/04/2018] [Accepted: 06/04/2018] [Indexed: 02/07/2023]
|
10
|
da Rosa JS, de Mello SVGV, Vicente G, Moon YJK, Daltoé FP, Lima TC, de Jesus Souza R, Biavatti MW, Fröde TS. Calea uniflora Less. attenuates the inflammatory response to carrageenan-induced pleurisy in mice. Int Immunopharmacol 2017; 42:139-149. [DOI: 10.1016/j.intimp.2016.11.029] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Revised: 10/27/2016] [Accepted: 11/24/2016] [Indexed: 02/07/2023]
|
11
|
Liu Y, Huang L, Ye H, Lv X. Combined QSAR-based virtual screening and fluorescence binding assay to identify natural product mediators of Interferon Regulatory Factor 7 (IRF-7) in pulmonary infection. SAR AND QSAR IN ENVIRONMENTAL RESEARCH 2016; 27:967-976. [PMID: 27762146 DOI: 10.1080/1062936x.2016.1243576] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Interferon regulatory factor-7 (IRF-7) is involved in pulmonary infection and pneumonia. Here, a synthetic strategy that combined quantitative structure-activity relationship (QSAR)-based virtual screening and in vitro binding assay was described to identify new and potent mediator ligands of IRF-7 from natural products. In the procedure, a QSAR scoring function was developed and validated using Gaussian process (GP) regression and a structure-based set of protein-ligand affinity data. By integrating hotspot pocket prediction, pharmacokinetics profile analysis and molecular docking calculations, the scoring function was successfully applied to virtual screening against a large library of structurally diverse, drug-like natural products. With the method we were able to identify a number of potential hits, from which several compounds were found to have moderate or high affinity to IRF-7 using fluorescence binding assays, with dissociation constants Kd at micromolar level. We have also examined the structural basis and noncovalent interactions of computationally modelled IRF-7 complex with its potent ligands. It is revealed that hydrophobic forces and van der Waals contacts play a central role in stabilization of the complex architecture, while few hydrogen bonds confer additional specificity for the protein-ligand recognition.
Collapse
Affiliation(s)
- Y Liu
- a Centre of Infectious Diseases , West China Hospital, Sichuan University , Chengdu , China
| | - L Huang
- a Centre of Infectious Diseases , West China Hospital, Sichuan University , Chengdu , China
| | - H Ye
- a Centre of Infectious Diseases , West China Hospital, Sichuan University , Chengdu , China
| | - X Lv
- a Centre of Infectious Diseases , West China Hospital, Sichuan University , Chengdu , China
| |
Collapse
|
12
|
Zhao DD, Jiang LL, Li HY, Yan PF, Zhang YL. Chemical Components and Pharmacological Activities of Terpene Natural Products from the Genus Paeonia. Molecules 2016; 21:molecules21101362. [PMID: 27754383 PMCID: PMC6273841 DOI: 10.3390/molecules21101362] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2016] [Revised: 10/03/2016] [Accepted: 10/08/2016] [Indexed: 12/20/2022] Open
Abstract
Paeonia is the single genus of ca. 33 known species in the family Paeoniaceae, found in Asia, Europe and Western North America. Up to now, more than 180 compounds have been isolated from nine species of the genus Paeonia, including terpenes, phenols, flavonoids, essential oil and tannins. Terpenes, the most abundant naturally occurring compounds, which accounted for about 57% and occurred in almost every species, are responsible for the observed in vivo and in vitro biological activities. This paper aims to give a comprehensive overview of the recent phytochemical and pharmacological knowledge of the terpenes from Paeonia plants, and enlighten further drug discovery research.
Collapse
Affiliation(s)
- Dan-Dan Zhao
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, 74 Xue-Fu Road, Nan-Gang District, Harbin 150080, China.
- Key Laboratory of Molecular Biology of Heilongjiang Province, College of Life Sciences, Heilongjiang University, Harbin 150080, China.
- Heilongjiang University Hospital, Harbin 150080, China.
| | - Li-Li Jiang
- Key Laboratory of Molecular Biology of Heilongjiang Province, College of Life Sciences, Heilongjiang University, Harbin 150080, China.
| | - Hong-Yi Li
- Heilongjiang University Hospital, Harbin 150080, China.
| | - Peng-Fei Yan
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, 74 Xue-Fu Road, Nan-Gang District, Harbin 150080, China.
| | - Yan-Long Zhang
- Key Laboratory of Molecular Biology of Heilongjiang Province, College of Life Sciences, Heilongjiang University, Harbin 150080, China.
| |
Collapse
|