1
|
Gu Y, Hu Y, Huang S, Ruiz S, Kawai T, Bai Y, Han X. CpG ODN/Mangiferin Dual Delivery through Calcium Alginate Hydrogels Inhibits Immune-Mediated Osteoclastogenesis and Promotes Alveolar Bone Regeneration in Mice. BIOLOGY 2023; 12:976. [PMID: 37508406 PMCID: PMC10376397 DOI: 10.3390/biology12070976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 06/08/2023] [Accepted: 07/04/2023] [Indexed: 07/30/2023]
Abstract
The immune system plays an important role in the skeletal system during bone repair and regeneration. The controlled release of biological factors from the immune system could facilitate and optimize the bone remodeling process through the regulation of the activities of bone cells. This study aimed to determine the effect of the controlled delivery of immunomodulatory biologicals on bone regeneration. Immunostimulatory cytosine-phosphate-guanosine oligodeoxynucleotides (CpG ODN) and glucosylxanthone Mangiferin (MAG)-embedded microbeads were incubated with P. gingivalis-challenged splenocytes, or co-cultured with RAW264.7 cells. The effect of CpG ODN/MAG-containing microbeads on bone regeneration was then tested in vivo in a mouse alveolar bone defect model. The results demonstrated that MAG significantly antagonized P. gingivalis proliferation and reduced the live/dead cell ratio. After the addition of CpG ODN + MAG microbeads, anti-inflammatory cytokines IL-10 and IL-4 were upregulated on day 2 but not day 4, whereas pro-inflammatory cytokine IL-1β responses showed no difference at both timepoints. RANKL production by splenocytes and TRAP+ cell formation of RAW264.7 cells were inhibited by the addition of CpG ODN + MAG microbeads. Alveolar bony defects, filled with CpG ODN + MAG microbeads, showed significantly increased new bone after 4 weeks. In summary, this study evaluated a new hydrogel-based regimen for the local delivery and controlled release of biologicals to repair and regenerate alveolar bony defects. The combined CpG ODN + MAG treatment may promote alveolar bone regeneration through the anti-microbial/anti-inflammatory effects and the inhibition of RANKL-mediated osteoclastogenesis.
Collapse
Affiliation(s)
- Yingzhi Gu
- Department of Immunology and Infectious Diseases, The Forsyth Institute, 245 First Street, Cambridge, MA 02142, USA
- Department of Orthodontics, Beijing Stomatological Hospital, Capital Medical University, Beijing 100050, China
| | - Yang Hu
- Department of Immunology and Infectious Diseases, The Forsyth Institute, 245 First Street, Cambridge, MA 02142, USA
| | - Shengyuan Huang
- Department of Oral Science and Translational Research, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, FL 33314, USA
- Department of Stomatology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - Sunniva Ruiz
- Department of Oral Science and Translational Research, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, FL 33314, USA
| | - Toshihisa Kawai
- Department of Oral Science and Translational Research, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, FL 33314, USA
| | - Yuxing Bai
- Department of Orthodontics, Beijing Stomatological Hospital, Capital Medical University, Beijing 100050, China
| | - Xiaozhe Han
- Department of Immunology and Infectious Diseases, The Forsyth Institute, 245 First Street, Cambridge, MA 02142, USA
- Department of Oral Science and Translational Research, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, FL 33314, USA
| |
Collapse
|
2
|
Bellanti JA. Mechanisms of desensitization with oral immunotherapy and epicutaneous immunotherapy. JOURNAL OF FOOD ALLERGY 2023; 5:10-18. [PMID: 39022333 PMCID: PMC11250651 DOI: 10.2500/jfa.2023.5.230002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 07/20/2024]
Abstract
Background Oral immunotherapy (OIT) and epicutaneous immunotherapy (EPIT) are emerging therapies for food allergy. With several recently published exploratory trials and randomized controlled clinical trials that support these procedures, there is a clear progress and interest toward making these treatment options available for allergist/immunologists and patients with food allergies entrusted to their care. However, there still remain many questions and concerns to be addressed before these procedures can be fully understood. Objective The purpose of the present report is to trace some of the important historical milestones in the development of OIT and EPIT that have contributed to their evolving clinical application to the treatment of food allergy, to describe some of the current understandings of the immunologic mechanisms by which these procedures elicit desensitization, and to provide some areas for future inquiry and research. Methods An extensive research was conducted in the medical literature data bases by applying terms such as food allergy, desensitization, tolerance, unresponsiveness, Treg cells, allergen immunotherapy (AIT), oral immunotherapy (OIT), and epicutaneous immunotherapy (EPIT). Results OIT and EPIT take their origins from AIT (also called desensitization), a procedure first reported for the treatment of hay fever over a 100 years ago in which slowly increasing doses of a specifically relevant allergen were administered until a maintenance dosage was achieved when the patient was free of symptoms. OIT and EPIT differ from AIT in certain aspects including the route of administration of the allergen as well as their relative shorter period of sustained unresponsiveness. Conclusion The origins and important historical landmarks that have been made in the field of food allergy immunotherapy are presented in the context of the immunologic mechanisms that contribute to the pathogenesis of these disorders. Although considerable progress has been made in recent years toward making these treatment options available for allergist/immunologists and patients with food allergies, there still remain many questions and concerns to be addressed before these procedures can be fully understood, which can be illuminated by future research.
Collapse
Affiliation(s)
- Joseph A. Bellanti
- From the Departments of Pediatrics and
- Microbiology and Immunology, Georgetown University Medical Center, Washington, D.C. and
- The International Center for Interdisciplinary Studies of Immunology, Georgetown University Medical Center, Washington, D.C
| |
Collapse
|
3
|
Chen X, Zhang P, Li P, Wang G, Li J, Wu Y, Cao Z, Zhou Y, Sun Y. CpG ODN 1668 as TLR9 agonist mediates humpback grouper (Cromileptes altivelis) antibacterial immune responses. FISH & SHELLFISH IMMUNOLOGY 2023; 138:108839. [PMID: 37207883 DOI: 10.1016/j.fsi.2023.108839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 05/16/2023] [Accepted: 05/17/2023] [Indexed: 05/21/2023]
Abstract
Cromileptes altivelis (humpback grouper) is the main farmed species in the southern coastal area of China owing to its important economic value. Toll-like receptor 9 (TLR9) belongs to the toll-like receptor (TLR) family and functions as a pattern recognition receptor, recognising unmethylated oligodeoxynucleotides containing the CpG motif (CpG ODNs) in bacterial and viral genomes, thereby activating host immune response. In this study, the C. altivelis TLR9 (CaTLR9) ligand CpG ODN 1668 was screened and found to significantly enhance the antibacterial immunity of humpback grouper in vivo and head kidney lymphocytes (HKLs) in vitro. In addition, CpG ODN 1668 also promoted the cell proliferation and immune gene expression of HKLs and strengthened the phagocytosis activity of head kidney macrophages. However, when the CaTLR9 expression was knocked down in the humpback group, the expression levels of TLR9, myeloid differentiation factor 88 (Myd88), tumour necrosis factor-α (TNF-α), interferon γ (IFN-γ), interleukin-1β (IL-1β), IL-6, and IL-8 were significantly reduced, and the antibacterial immune effects induced by CpG ODN 1668 were mostly abolished. Therefore, CpG ODN 1668 induced antibacterial immune responses in a CaTLR9-dependent pathway. These results enhance the knowledge of the antibacterial immunity of fish TLR signalling pathways and have important implications for exploring natural antibacterial molecules in fish.
Collapse
Affiliation(s)
- Xiaojuan Chen
- Collaborative Innovation Center of Marine Science and Technology, State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou, 570228, China; Hainan Provincial Key Laboratory for Tropical Hydrobiology and Biotechnology, College of Marine Science, Hainan University, Haikou, 570228, China
| | - Panpan Zhang
- Sanya Nanfan Research Institute, Hainan University, Sanya, 572022, China; Collaborative Innovation Center of Marine Science and Technology, State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou, 570228, China
| | - Pengshuo Li
- Sanya Nanfan Research Institute, Hainan University, Sanya, 572022, China; Hainan Provincial Key Laboratory for Tropical Hydrobiology and Biotechnology, College of Marine Science, Hainan University, Haikou, 570228, China
| | - Guotao Wang
- Sanya Nanfan Research Institute, Hainan University, Sanya, 572022, China; Collaborative Innovation Center of Marine Science and Technology, State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou, 570228, China
| | - Jianlong Li
- Collaborative Innovation Center of Marine Science and Technology, State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou, 570228, China; Hainan Provincial Key Laboratory for Tropical Hydrobiology and Biotechnology, College of Marine Science, Hainan University, Haikou, 570228, China
| | - Ying Wu
- Collaborative Innovation Center of Marine Science and Technology, State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou, 570228, China; Hainan Provincial Key Laboratory for Tropical Hydrobiology and Biotechnology, College of Marine Science, Hainan University, Haikou, 570228, China
| | - Zhenjie Cao
- Collaborative Innovation Center of Marine Science and Technology, State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou, 570228, China; Hainan Provincial Key Laboratory for Tropical Hydrobiology and Biotechnology, College of Marine Science, Hainan University, Haikou, 570228, China
| | - Yongcan Zhou
- Collaborative Innovation Center of Marine Science and Technology, State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou, 570228, China; Hainan Provincial Key Laboratory for Tropical Hydrobiology and Biotechnology, College of Marine Science, Hainan University, Haikou, 570228, China
| | - Yun Sun
- Sanya Nanfan Research Institute, Hainan University, Sanya, 572022, China; Collaborative Innovation Center of Marine Science and Technology, State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou, 570228, China; Hainan Provincial Key Laboratory for Tropical Hydrobiology and Biotechnology, College of Marine Science, Hainan University, Haikou, 570228, China.
| |
Collapse
|
4
|
Chen X, Wu Y, Qiu Y, Li P, Cao Z, Zhou Y, Sun Y. CpG ODN 2102 promotes antibacterial immune responses and enhances vaccine-induced protection in golden pompano (Trachinotusovatus). FISH & SHELLFISH IMMUNOLOGY 2023; 137:108783. [PMID: 37137380 DOI: 10.1016/j.fsi.2023.108783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 04/18/2023] [Accepted: 04/30/2023] [Indexed: 05/05/2023]
Abstract
CpG oligodeoxynucleotides (ODNs) are oligodeoxynucleotides containing CpG motifs and can be recognized by toll-like receptor 9 (TLR9), activating the host's immune responses. In this study, ten different CpG ODNs were designed and synthesized to study the antibacterial immune responses of CpG ODNs in golden pompano (Trachinotus ovatus). Results showed that CpG ODN 2102 significantly improved the immunity of golden pompano against bacteria. Besides, CpG ODN 2102 promoted the proliferation of head kidney lymphocytes and activated the head kidney macrophages. When TLR9-specific small interfering RNA (siRNA) was used to interfere with TLR9 expression, the immune responses were decreased. Moreover, the expression levels of myeloid differentiation primary response 88 (Myd88), p65, tumor necrosis factor receptor-associated factor 6 (TRAF6), and tumor necrosis factor-alpha (TNF-α) in the TLR9-knockdown golden pompano kidney (GPK) cells were significantly reduced. The nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) promoter activity of the TLR9-knockdown GPK cells was also significantly reduced. In vivo, the antibacterial immune effects induced by CpG ODN 2102 in golden pompano were mostly abolished when TLR9 expression was knocked down. These results suggested that TLR9 was involved in the immune responses induced by CpG ODN 2102. CpG ODN 2102 also enhanced the protective effect of the Vibrio harveyi vaccine pCTssJ, where the survival rate of golden pompano was significantly improved by 20%. In addition, CpG ODN 2102 enhanced the messenger RNA (mRNA) expression levels of TLR9, Myxovirus resistance (Mx), interferon γ (IFN-γ), TNF-α, interleukin (IL)-1β, IL-8, major histocompatibility complex class (MHC) Iα, MHC IIα, Immunoglobulin D (IgD), and IgM. Therefore, TLR9 was involved in the antibacterial immune responses induced by CpG ODN 2102 and CpG ODN 2102 possessed adjuvant immune effects. These results enlarged our knowledge of the antibacterial immunity of fish TLRs signaling pathway and had important implications for exploring natural antibacterial molecules in fish and developing new vaccine adjuvants.
Collapse
Affiliation(s)
- Xiaojuan Chen
- Sanya Nanfan Research Institute, Hainan University, Sanya, 572022, China; State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou, 570228, China; Collaborative Innovation Center of Marine Science and Technology, Hainan University, Haikou, 570228, China
| | - Ying Wu
- Sanya Nanfan Research Institute, Hainan University, Sanya, 572022, China; State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou, 570228, China; Collaborative Innovation Center of Marine Science and Technology, Hainan University, Haikou, 570228, China
| | - Yulin Qiu
- Sanya Nanfan Research Institute, Hainan University, Sanya, 572022, China; Collaborative Innovation Center of Marine Science and Technology, Hainan University, Haikou, 570228, China
| | - Pengshuo Li
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou, 570228, China; Hainan Provincial Key Laboratory for Tropical Hydrobiology and Biotechnology, College of Marine Science, Hainan University, Haikou, 570228, China
| | - Zhenjie Cao
- Sanya Nanfan Research Institute, Hainan University, Sanya, 572022, China; State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou, 570228, China; Collaborative Innovation Center of Marine Science and Technology, Hainan University, Haikou, 570228, China
| | - Yongcan Zhou
- Sanya Nanfan Research Institute, Hainan University, Sanya, 572022, China; State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou, 570228, China; Collaborative Innovation Center of Marine Science and Technology, Hainan University, Haikou, 570228, China; Hainan Provincial Key Laboratory for Tropical Hydrobiology and Biotechnology, College of Marine Science, Hainan University, Haikou, 570228, China.
| | - Yun Sun
- Sanya Nanfan Research Institute, Hainan University, Sanya, 572022, China; State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou, 570228, China; Collaborative Innovation Center of Marine Science and Technology, Hainan University, Haikou, 570228, China.
| |
Collapse
|
5
|
Šošić L, Paolucci M, Flory S, Jebbawi F, Kündig TM, Johansen P. Allergen immunotherapy: progress and future outlook. Expert Rev Clin Immunol 2023:1-25. [PMID: 37122076 DOI: 10.1080/1744666x.2023.2209319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
INTRODUCTION Allergy, the immunological hypersensitivity to innocuous environmental compounds, is a global health problem. The disease triggers, allergens, are mostly proteins contained in various natural sources such as plant pollen, animal dander, dust mites, foods, fungi and insect venoms. Allergies can manifest with a wide range of symptoms in various organs, and be anything from just tedious to life-threatening. A majority of all allergy patients are self-treated with symptom-relieving medicines, while allergen immunotherapy (AIT) is the only causative treatment option. AREAS COVERED This review will aim to give an overview of the state-of-the-art allergy management, including the use of new biologics and the application of biomarkers, and a special emphasis and discussion on current research trends in the field of AIT. EXPERT OPINION Conventional AIT has proven effective, but the years-long treatment compromises patient compliance. Moreover, AIT is typically not offered in food allergy. Hence, there is a need for new, effective and safe AIT methods. Novel routes of administration (e.g. oral and intralymphatic), hypoallergenic AIT products and more effective adjuvants holds great promise. Most recently, the development of allergen-specific monoclonal antibodies for passive immunotherapy may also allow treatment of patients currently not treated or treatable.
Collapse
Affiliation(s)
- Lara Šošić
- Department of Dermatology, University of Zurich, Raemistrasse 100, 8091 Zurich, Switzerland
| | - Marta Paolucci
- Department of Dermatology, University of Zurich, Raemistrasse 100, 8091 Zurich, Switzerland
| | - Stephan Flory
- Department of Dermatology, University of Zurich, Raemistrasse 100, 8091 Zurich, Switzerland
| | - Fadi Jebbawi
- Department of Dermatology, University of Zurich, Raemistrasse 100, 8091 Zurich, Switzerland
| | - Thomas M Kündig
- Department of Dermatology, University of Zurich, Raemistrasse 100, 8091 Zurich, Switzerland
- Department of Dermatology, University Hospital Zurich, Raemistrasse 100, 8091 Zurich, Switzerland
| | - Pål Johansen
- Department of Dermatology, University of Zurich, Raemistrasse 100, 8091 Zurich, Switzerland
- Department of Dermatology, University Hospital Zurich, Raemistrasse 100, 8091 Zurich, Switzerland
| |
Collapse
|
6
|
Bellanti JA. Seasonal-specific Variations of the Upper Airway Microbiome and Childhood Asthma: Friend or Foe? J Allergy Clin Immunol 2022; 150:62-63. [PMID: 35623413 DOI: 10.1016/j.jaci.2022.05.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 05/11/2022] [Indexed: 10/18/2022]
Affiliation(s)
- Joseph A Bellanti
- Professor of Pediatrics and Microbiology-Immunology (Emeritus), Director, International Center for Interdisciplinary Studies of Immunology (ICISI), Georgetown University Medical Center, 3900 Reservoir Road, NW, Room 308 NW, Washington, DC 20057
| |
Collapse
|