1
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Svenvik M, Jenmalm MC, Brudin L, Raffetseder J, Hellberg S, Axelsson D, Lindell G, Blomberg M, Ernerudh J. Chemokine and cytokine profiles in preterm and term labor, in preterm prelabor rupture of the membranes, and in normal pregnancy. J Reprod Immunol 2024; 164:104278. [PMID: 38901109 DOI: 10.1016/j.jri.2024.104278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Revised: 05/27/2024] [Accepted: 06/07/2024] [Indexed: 06/22/2024]
Abstract
The objective of this study was to investigate the immune mechanisms involved in preterm labor (PTL), preterm prelabor rupture of the membranes (PPROM), and normal pregnancies. The second objective was to explore immune profiles in PTL for association with early ( < 34 gestational weeks (gw)) or instant ( < 48 h) delivery. This prospective observational multi-center study included women with singleton pregnancies with PTL (n = 80) or PPROM (n = 40) before 34 gw, women with normal pregnancies scheduled for antenatal visits (n = 44), and women with normal pregnancies in active labor at term (n = 40). Plasma samples obtained at admission were analyzed for cytokine and chemokine quantification using a multiplex bead assay in order to compare the immune profiles between PTL, PPROM, and normal pregnancies. In PTL, CXCL1 and CCL17 were significantly higher compared to gestational age-matched women at antenatal visits, whereas for PPROM, CXCL1 and IL-6 were increased. Women in term labor had a more pronounced inflammatory pattern with higher levels of CXCL1, CXCL8, and IL-6 compared with PTL (p = 0.007, 0.003, and 0.013, respectively), as well as higher levels of CCL17, CXCL1 and IL-6 (all p < 0.001) compared with the women at antenatal visits. In PTL, CXCL8 was higher in women with delivery before 34 gw, whereas CXCL8, GM-CSF, and IL-6 were significantly higher in women with delivery within 48 h. To conclude, PTL and PPROM were associated with a complex pattern of inflammation, both involving Th17 (CXCL1) responses. Although further studies are needed, CXCL8, GM-CSF, and IL-6 may be potential candidates for predicting preterm birth in PTL.
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Affiliation(s)
- Maria Svenvik
- Department of Obstetrics and Gynecology, Region Kalmar County, Kalmar, Sweden; Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden.
| | - Maria C Jenmalm
- Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Lars Brudin
- Department of Clinical Physiology, Region Kalmar County, Kalmar, Sweden; Department of Health, Medicine and Caring Sciences, Linköping University, Linköping, Sweden
| | - Johanna Raffetseder
- Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Sandra Hellberg
- Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Daniel Axelsson
- Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden; Department of Obstetrics and Gynecology, Ryhov County Hospital, Jönköping, Sweden
| | - Gunnel Lindell
- Department of Obstetrics and Gynecology, Region Kalmar County, Kalmar, Sweden
| | - Marie Blomberg
- Department of Obstetrics and Gynecology, and Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Jan Ernerudh
- Department of Clinical Immunology and Transfusion Medicine, and Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
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2
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Guo Y, Miao Y, Chen H, Wang K, Wang S, Wang R, Wu Z, Li J. Revealing the mechanism: the influence of Baicalin on M1/M2 and Th1/Th2 imbalances in mycoplasma gallisepticum infection. Poult Sci 2024; 103:104145. [PMID: 39127004 DOI: 10.1016/j.psj.2024.104145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 07/10/2024] [Accepted: 07/25/2024] [Indexed: 08/12/2024] Open
Abstract
Mycoplasma gallisepticum (MG) is a pathogen that induces chronic respiratory illnesses in chickens, leading to tracheal and lung injury, and eliciting immune reactions that support sustained colonization. Baicalin, a compound found in scutellaria baicalensis, exhibits anti-inflammatory, antioxidant, and antibacterial properties. This study aimed to investigate the potential of baicalin in alleviating lung and cell damage caused by MG by restoring imbalances in M1/M2 and Th1/Th2 differentiation and to explore its underlying mechanism. In this research, a model for M1/M2 polarization induced by MG was initially developed. Specifically, infection with MG at a multiplicity of infection (MOI) of 400 for 6 h represented the M1 model, while infection for 10 h represented the M2 model. The polarization markers were subsequently validated using qRT-PCR, ELISA, and Western blot analysis. Baicalin disrupts the activation of M1 cells induced by MG and has the potential to restore the balance between M1 and M2 cells, thereby mitigating the inflammatory damage resulting from MG. Subsequent studies on MG-infected chickens detected imbalances in M1/M2 and Th1/Th2 differentiation in alveolar lavage fluid, as well as imbalances in macrophages and Th cells in the lung. The M1/Th1 model was exposed to MG for 5 d, while the M2/Th2 model was infected with MG for 7 d. The utilization of both light and electron transmission microscopes revealed that the administration of baicalin resulted in a reduction in the number of M1 cells, a decrease in cytoplasmic vacuoles, restoration of mitochondrial swelling and chromatin agglutination, as well as alleviation of alveolar rupture and inflammatory cell infiltration. Furthermore, baicalin restored MG-induced M1/M2 and Th1/Th2 imbalances and inhibited the phosphorylation of p38 and p65 proteins, thereby hindering the activation of the TLR4-p38 MAPK/NF-κB pathway. This study provides insights into the potential long-term effects of baicalin in MG infection and offers a theoretical basis for practical applications.
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Affiliation(s)
- Yuquan Guo
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Yusong Miao
- Heilongjiang Academy of Agricultural Sciences, Harbin, 150086, PR China
| | - Hao Chen
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Kexin Wang
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Shun Wang
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Rui Wang
- Shandong Tianmu Technology Co. LTD, Dongying, 257500, PR China
| | - Zhiyong Wu
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Jichang Li
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China.
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3
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Pan Y, Wang Y, Xu M, Zhong M, Peng X, Zeng K, Huang X. The Roles of Innate Immune Cells in Atopic Dermatitis. J Innate Immun 2024; 16:385-396. [PMID: 39025048 PMCID: PMC11324229 DOI: 10.1159/000539534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Accepted: 05/23/2024] [Indexed: 07/20/2024] Open
Abstract
BACKGROUND Atopic dermatitis (AD) is a chronic inflammatory skin condition characterized by recurrent eczematous lesions and severe pruritus. The economic burden and time penalty caused by the relapse of AD reduce patients' life quality. SUMMARY AD has complex pathogenesis, including genetic disorders, epidermal barrier dysfunction, abnormal immune responses, microbial dysbiosis of the skin, and environmental factors. Recently, the role of innate immune cells in AD has attracted considerable attention. This review highlighted recent findings on innate immune cells in the onset and progression of AD. KEY MESSAGES Innate immune cells play essential roles in the pathogenesis of AD and enough attention should be given for treating AD from the perspective of innate immunity in clinics.
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Affiliation(s)
- Yuke Pan
- The First School of Clinical Medicine, Southern Medical University, Guangzhou, China
| | - Youyi Wang
- Department of Dermatology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Meinian Xu
- Department of Dermatology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Meizhen Zhong
- Department of Dermatology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Xiaoming Peng
- Department of Dermatology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Kang Zeng
- Department of Dermatology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Xiaowen Huang
- Department of Dermatology, Nanfang Hospital, Southern Medical University, Guangzhou, China
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4
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Khoury P, Wechsler JB. Role of Mast Cells in Eosinophilic Gastrointestinal Diseases. Immunol Allergy Clin North Am 2024; 44:311-327. [PMID: 38575226 PMCID: PMC11220468 DOI: 10.1016/j.iac.2024.01.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/06/2024]
Abstract
Mast cells play a central role in the pathogenesis of eosinophilic gastrointestinal disorders (EGIDs), including eosinophilic esophagitis. Their interactions with immune and structural cells, involvement in tissue remodeling, and contribution to symptoms make them attractive targets for therapeutic intervention. More is being discovered regarding the intricate interplay of mast cells and eosinophils. Recent studies demonstrating that depletion of eosinophils is insufficient to improve symptoms of EGIDs have raised the question of whether other cells may play a role in symptomatology and pathogenesis of EGIDs.
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Affiliation(s)
- Paneez Khoury
- Human Eosinophil Section, National Institute of Allergy and Infectious Diseases, National Institutes of Health, 9000 Rockville Pike, Building 10, Room 12C103, Bethesda, MD 20892, USA.
| | - Joshua B Wechsler
- Simpson-Querrey 10-518, Stanley Manne Children's Research Institute, Ann & Robert H. Lurie Children's Hospital of Chicago, 225 E. Chicago Avenue, Box 65, Chicago, IL 60611, USA
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5
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Strobl J, Gail LM, Krecu L, Madad S, Kleissl L, Unterluggauer L, Redl A, Brazdilova K, Saluzzo S, Wohlfarth P, Knaus HA, Mitterbauer M, Rabitsch W, Haniffa M, Stary G. Diverse macrophage populations contribute to distinct manifestations of human cutaneous graft-versus-host disease. Br J Dermatol 2024; 190:402-414. [PMID: 38010706 PMCID: PMC10873647 DOI: 10.1093/bjd/ljad402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 10/01/2023] [Accepted: 10/04/2023] [Indexed: 11/29/2023]
Abstract
BACKGROUND Graft-versus-host disease (GvHD) is a major life-threatening complication of allogeneic haematopoietic stem cell transplantation (HSCT), limiting the broad application of HSCT for haematological malignancies. Cutaneous GvHD is described as a post-transplant inflammatory reaction by skin-infiltrating donor T cells and remaining recipient tissue-resident memory T cells. Despite the major influence of lymphocytes on GvHD pathogenesis, the complex role of mononuclear phagocytes (MNPs) in tissues affected by GvHD is increasingly appreciated. OBJECTIVES To characterize the identity, origin and functions of MNPs in patients with acute cutaneous GvHD. METHODS Using single-cell RNA sequencing and multiplex tissue immunofluorescence, we identified an increased abundance of MNPs in skin and blood from 36 patients with acute cutaneous GvHD. In cases of sex-mismatched transplantation, we used expression of X-linked genes to detect rapid tissue adaptation of newly recruited donor MNPs resulting in similar transcriptional states of host- and donor-derived macrophages within GvHD skin lesions. RESULTS We showed that cutaneous GvHD lesions harbour expanded CD163+ tissue-resident macrophage populations with anti-inflammatory and tissue-remodelling properties including interleukin-10 cytokine production. Cell-cell interaction analyses revealed putative signalling to strengthen regulatory T-cell responses. Notably, macrophage polarization in chronic cutaneous GvHD types was proinflammatory and drastically differed from acute GvHD, supporting the notion of distinct cellular players in different clinical GvHD subtypes. CONCLUSIONS Overall, our data reveal a surprisingly dynamic role of MNPs after HSCT. Specific and time-resolved targeting to repolarize this cell subset may present a promising therapeutic strategy in combatting GvHD skin inflammation.
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Affiliation(s)
- Johanna Strobl
- Department of Dermatology, Medical University of Vienna, 1090 Vienna, Austria
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, Cambridge, UK
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, 1090 Vienna, Austria
| | - Laura M Gail
- Department of Dermatology, Medical University of Vienna, 1090 Vienna, Austria
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, 1090 Vienna, Austria
| | - Laura Krecu
- Department of Dermatology, Medical University of Vienna, 1090 Vienna, Austria
| | - Shaista Madad
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, Cambridge, UK
- University of Cambridge, Cambridge, UK
| | - Lisa Kleissl
- Department of Dermatology, Medical University of Vienna, 1090 Vienna, Austria
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, 1090 Vienna, Austria
| | - Luisa Unterluggauer
- Department of Dermatology, Medical University of Vienna, 1090 Vienna, Austria
| | - Anna Redl
- Department of Dermatology, Medical University of Vienna, 1090 Vienna, Austria
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, 1090 Vienna, Austria
| | - Kveta Brazdilova
- Department of Dermatology, Medical University of Vienna, 1090 Vienna, Austria
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, 1090 Vienna, Austria
| | - Simona Saluzzo
- Department of Dermatology, Medical University of Vienna, 1090 Vienna, Austria
| | - Philipp Wohlfarth
- Department of Internal Medicine I, Bone Marrow Transplantation Unit, Medical University of Vienna, 1090 Vienna, Austria
| | - Hanna A Knaus
- Department of Internal Medicine I, Bone Marrow Transplantation Unit, Medical University of Vienna, 1090 Vienna, Austria
| | - Margit Mitterbauer
- Department of Internal Medicine I, Bone Marrow Transplantation Unit, Medical University of Vienna, 1090 Vienna, Austria
| | - Werner Rabitsch
- Department of Internal Medicine I, Bone Marrow Transplantation Unit, Medical University of Vienna, 1090 Vienna, Austria
| | - Muzlifah Haniffa
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, Cambridge, UK
- Department of Dermatology and NIHR Newcastle Biomedical Research Centre, Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Georg Stary
- Department of Dermatology, Medical University of Vienna, 1090 Vienna, Austria
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, 1090 Vienna, Austria
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Xu Y, Tong X, Liu P, Huang J, Chen S, Liu D, Gu T, Xie Y, Guo D, Xu Y. Deficiency of INPP4A promotes M2 macrophage polarization in eosinophilic chronic rhinosinusitis with nasal polyps. Inflamm Res 2024:10.1007/s00011-024-01855-y. [PMID: 38363325 DOI: 10.1007/s00011-024-01855-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 01/19/2024] [Accepted: 01/26/2024] [Indexed: 02/17/2024] Open
Abstract
OBJECTIVE The treatment of eosinophilic chronic rhinosinusitis with nasal polyps (E-CRSwNP) remains a challenge due to its complex pathogenesis. Inositol polyphosphate-4-phosphatase type IA (INPP4A), a lipid phosphatase, has been implicated in allergic asthma. However, the expression and function of INPP4A in E-CRSwNP remain unclear. This study aims to investigate the role of INPP4A in macrophages in E-CRSwNP. METHODS We assessed the expression of INPP4A in human and mouse nasal mucosal tissues via immunofluorescence staining. THP-1 cells were cultured and exposed to various cytokines to investigate the regulation of INPP4A expression and its functional role. Additionally, we established a murine nasal polyp (NP) model and administrated an INPP4A-overexpressing lentivirus evaluate its impact on NP. RESULTS The percentage of INPP4A + CD68 + macrophages among total macrophages decreased in the E-CRSwNP group compared to the control and the non-eosinophilic CRSwNP (NE-CRSwNP) groups, exhibiting an inverse correlation with an increased percentage of CD206 + CD68 + M2 macrophages among total macrophages. Overexpression of INPP4A led to a reduced percentage of THP-1 cells polarizing towards the M2 phenotype, accompanied by decreased levels of associated chemotactic factors including CCL18, CCL22, CCL24, and CCL26. We also validated the involvement of the PI3K-AKT pathway in the function of INPP4A in vitro. Furthermore, INPP4A overexpression in the murine NP model resulted in the attenuation of eosinophilic inflammation in the nasal mucosa. CONCLUSIONS INPP4A deficiency promotes macrophage polarization towards the M2 phenotype, leading to the secretion of chemokines that recruit eosinophils and Th2 cells, thereby amplifying eosinophilic inflammation in E-CRSwNP. INPP4A may exert a suppressive role in eosinophilic inflammation and could potentially serve as a novel therapeutic strategy.
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Affiliation(s)
- Yingying Xu
- Department of Rhinology and Allergy, Otolaryngology-Head and Neck Surgery Center, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan, 430060, China
| | - Xiaoting Tong
- Department of Rhinology and Allergy, Otolaryngology-Head and Neck Surgery Center, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan, 430060, China
| | - Peiqiang Liu
- Department of Rhinology and Allergy, Otolaryngology-Head and Neck Surgery Center, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan, 430060, China
| | - Jingyu Huang
- Department of Rhinology and Allergy, Otolaryngology-Head and Neck Surgery Center, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan, 430060, China
| | - Siyuan Chen
- Department of Rhinology and Allergy, Otolaryngology-Head and Neck Surgery Center, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan, 430060, China
| | - Duo Liu
- Department of Rhinology and Allergy, Otolaryngology-Head and Neck Surgery Center, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan, 430060, China
| | - Tian Gu
- Department of Rhinology and Allergy, Otolaryngology-Head and Neck Surgery Center, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan, 430060, China
| | - Yulie Xie
- Department of Rhinology and Allergy, Otolaryngology-Head and Neck Surgery Center, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan, 430060, China
| | - Duo Guo
- Department of Rhinology and Allergy, Otolaryngology-Head and Neck Surgery Center, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan, 430060, China
| | - Yu Xu
- Department of Rhinology and Allergy, Otolaryngology-Head and Neck Surgery Center, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan, 430060, China.
- Hubei Province Key Laboratory of Allergy and Immunity, Wuhan, China.
- Research Institute of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, China.
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7
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Zhu Y, Liu Y, Ma Y, Chen L, Huang H, Huang S, Zhang H, He Y, Tan C, He Y, Qiang L. Macrophage autophagy deficiency-induced CEBPB accumulation alleviates atopic dermatitis via impairing M2 polarization. Cell Rep 2023; 42:113430. [PMID: 37963021 DOI: 10.1016/j.celrep.2023.113430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 07/02/2023] [Accepted: 10/30/2023] [Indexed: 11/16/2023] Open
Abstract
Macroautophagy/autophagy plays a pivotal role in immune regulation. Its significance is evident in modulation of immune cell differentiation and maturation, physiologically and pathologically. Here, we investigate the role of macrophage autophagy on the development of atopic dermatitis (AD). By employing an MC903-induced AD mice model, we observe reduced cutaneous inflammation in macrophage Atg5 cKO mice compared with WT mice. Notably, there is a decreased infiltration of M2 macrophages in lesional skin from Atg5 cKO mice. Furthermore, impaired STAT6 phosphorylation and diminished expression of M2 markers are detected in autophagy-deficient macrophages. Our mechanistic exploration reveals that CEBPB drives the transcription of SOCS1/3 and SQSTM1/p62-mediated autophagy degrades CEBPB normally. Autophagy deficiency leads to CEBPB accumulation, and further promotes the expression of SOCS1/3. This process inhibits JAK1-STAT6 pathway activation and M2 marker expression. Together, our study indicates that autophagy is required for M2 activation and macrophage autophagy may be a promising target for AD intervention.
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Affiliation(s)
- Yongcheng Zhu
- State Key Laboratory of Natural Medicines, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Yunyao Liu
- State Key Laboratory of Natural Medicines, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 211198, China; Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing 210042, China
| | - Yuxiang Ma
- Department of Pharmacology, Guilin Medical University, Guilin 541199, China
| | - Liu Chen
- State Key Laboratory of Natural Medicines, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - He Huang
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201213, China.
| | - Siting Huang
- State Key Laboratory of Natural Medicines, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Huiling Zhang
- State Key Laboratory of Natural Medicines, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Yuying He
- Department of Medicine, Section of Dermatology, University of Chicago, Chicago, IL, USA
| | - Cheng Tan
- Department of Dermatology, Affiliated Hospital of Nanjing University of Chinese Medicine, 155 Hanzhong Road, Nanjing 210029, China.
| | - Yuan He
- State Key Laboratory of Natural Medicines, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 211198, China.
| | - Lei Qiang
- State Key Laboratory of Natural Medicines, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 211198, China; Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing 210042, China.
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8
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Mitamura Y, Reiger M, Kim J, Xiao Y, Zhakparov D, Tan G, Rückert B, Rinaldi AO, Baerenfaller K, Akdis M, Brüggen MC, Nadeau KC, Brunner PM, Roqueiro D, Traidl-Hoffmann C, Akdis CA. Spatial transcriptomics combined with single-cell RNA-sequencing unravels the complex inflammatory cell network in atopic dermatitis. Allergy 2023; 78:2215-2231. [PMID: 37312623 DOI: 10.1111/all.15781] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 04/06/2023] [Accepted: 05/08/2023] [Indexed: 06/15/2023]
Abstract
BACKGROUND Atopic dermatitis (AD) is the most common chronic inflammatory skin disease with complex pathogenesis for which the cellular and molecular crosstalk in AD skin has not been fully understood. METHODS Skin tissues examined for spatial gene expression were derived from the upper arm of 6 healthy control (HC) donors and 7 AD patients (lesion and nonlesion). We performed spatial transcriptomics sequencing to characterize the cellular infiltrate in lesional skin. For single-cell analysis, we analyzed the single-cell data from suction blister material from AD lesions and HC skin at the antecubital fossa skin (4 ADs and 5 HCs) and full-thickness skin biopsies (4 ADs and 2 HCs). The multiple proximity extension assays were performed in the serum samples from 36 AD patients and 28 HCs. RESULTS The single-cell analysis identified unique clusters of fibroblasts, dendritic cells, and macrophages in the lesional AD skin. Spatial transcriptomics analysis showed the upregulation of COL6A5, COL4A1, TNC, and CCL19 in COL18A1-expressing fibroblasts in the leukocyte-infiltrated areas in AD skin. CCR7-expressing dendritic cells (DCs) showed a similar distribution in the lesions. Additionally, M2 macrophages expressed CCL13 and CCL18 in this area. Ligand-receptor interaction analysis of the spatial transcriptome identified neighboring infiltration and interaction between activated COL18A1-expressing fibroblasts, CCL13- and CCL18-expressing M2 macrophages, CCR7- and LAMP3-expressing DCs, and T cells. As observed in skin lesions, serum levels of TNC and CCL18 were significantly elevated in AD, and correlated with clinical disease severity. CONCLUSION In this study, we show the unknown cellular crosstalk in leukocyte-infiltrated area in lesional skin. Our findings provide a comprehensive in-depth knowledge of the nature of AD skin lesions to guide the development of better treatments.
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Affiliation(s)
- Yasutaka Mitamura
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Matthias Reiger
- CK CARE - Christine Kühne Center for Allergy Research and Education, Davos, Switzerland
- Department of Environmental Medicine, Faculty of Medicine, University of Augsburg, Augsburg, Germany
- Institute of Environmental Medicine, Helmholtz Zentrum München, Augsburg, Germany
| | - Juno Kim
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Yi Xiao
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
- Swiss Institute of Bioinformatics (SIB), Davos, Switzerland
| | - Damir Zhakparov
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
- Swiss Institute of Bioinformatics (SIB), Davos, Switzerland
| | - Ge Tan
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Beate Rückert
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Arturo O Rinaldi
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Katja Baerenfaller
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
- Swiss Institute of Bioinformatics (SIB), Davos, Switzerland
| | - Mübeccel Akdis
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Marie-Charlotte Brüggen
- CK CARE - Christine Kühne Center for Allergy Research and Education, Davos, Switzerland
- Department of Dermatology, University Hospital Zurich, Zurich, Switzerland
- Faculty of Medicine, University Zurich, Zurich, Switzerland
| | - Kari C Nadeau
- Sean N. Parker Center for Allergy and Asthma Research, Stanford University, Stanford, California, USA
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Stanford University, Stanford, California, USA
| | - Patrick M Brunner
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Damian Roqueiro
- Swiss Institute of Bioinformatics (SIB), Davos, Switzerland
- Department of Biosystems Science and Engineering, ETH Zurich, Basel, Switzerland
| | - Claudia Traidl-Hoffmann
- CK CARE - Christine Kühne Center for Allergy Research and Education, Davos, Switzerland
- Department of Environmental Medicine, Faculty of Medicine, University of Augsburg, Augsburg, Germany
- Institute of Environmental Medicine, Helmholtz Zentrum München, Augsburg, Germany
- ZIEL, Technical University of Munich, Freising, Germany
| | - Cezmi A Akdis
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
- CK CARE - Christine Kühne Center for Allergy Research and Education, Davos, Switzerland
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9
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Dawodu D, Sand S, Nikolouli E, Werfel T, Mommert S. The mRNA expression and secretion of granzyme B are up-regulated via the histamine H2 receptor in human CD4 + T cells. Inflamm Res 2023; 72:1525-1538. [PMID: 37470818 PMCID: PMC10499701 DOI: 10.1007/s00011-023-01759-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 06/01/2023] [Accepted: 06/09/2023] [Indexed: 07/21/2023] Open
Abstract
INTRODUCTION Granzyme B (GZMB), a serine protease with cytotoxic and immunomodulatory functions, shows elevated levels in blood plasma of patients with atopic dermatitis (AD). It has been observed that GZMB expression in CD4+ and CD8+ T cells is higher in lesional skin in AD than in healthy skin. Since histamine is present in high concentration in the skin of AD patients, we investigated the regulation of GZMB in human CD4+ T cells by histamine. METHODS Naïve CD4+ T cells polarized into Th2 cells, total CD4+ T cells treated with IL-4 for 72 h and CD4+ T cells isolated from healthy donors and AD patients were investigated. The cells were stimulated with histamine or with different histamine-receptor agonists. Gene expression was evaluated by RNA-Seq. GZMB mRNA expression was detected by quantitative real time PCR, whereas GZMB secretion was measured by ELISpot and ELISA. T cell degranulation was evaluated by flow cytometry using CD107a surface expression as a degranulation marker. RESULTS By RNA-Seq, we identified the up-regulation of various genes of the cytotoxic pathway, in particular of GZMB, by histamine in Th2-polarized CD4+ T cells. In Th2-polarized CD4+ T cells and in CD4+ T cells activated by IL-4 the mRNA expression of GZMB was significantly up-regulated by histamine and by histamine H2 receptor (H2R) agonists. The induction of GZMB secretion by histamine was significantly higher in CD4+ T cells from AD patients than in those from healthy donors. CD107a surface expression was up-regulated by trend in response to histamine in Th2-polarized CD4+ T cells. CONCLUSION Our findings may help to elucidate novel mechanisms of the H2R and to achieve a better understanding of the role of GZMB in the pathogenesis of AD.
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Affiliation(s)
- Damilola Dawodu
- Department of Dermatology and Allergy, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Sophie Sand
- Department of Dermatology and Allergy, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Eirini Nikolouli
- Department of Dermatology and Allergy, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Thomas Werfel
- Department of Dermatology and Allergy, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Susanne Mommert
- Department of Dermatology and Allergy, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany.
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10
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Misery L, Pierre O, Le Gall-Ianotto C, Lebonvallet N, Chernyshov PV, Le Garrec R, Talagas M. Basic mechanisms of itch. J Allergy Clin Immunol 2023; 152:11-23. [PMID: 37201903 DOI: 10.1016/j.jaci.2023.05.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 05/02/2023] [Accepted: 05/11/2023] [Indexed: 05/20/2023]
Abstract
Pruritus (or itch) is an unpleasant sensation leading to a desire to scratch. In the epidermis, there are selective C or Aδ epidermal nerve endings that are pruriceptors. At their other ends, peripheral neurons form synapses with spinal neurons and interneurons. Many areas in the central nervous system are involved in itch processing. Although itch does not occur solely because of parasitic, allergic, or immunologic diseases, it is usually the consequence of neuroimmune interactions. Histamine is involved in a minority of itchy conditions, and many other mediators play a role: cytokines (eg, IL-4, IL-13, IL-31, IL-33, and thymic stromal lymphopoietin), neurotransmitters (eg, substance P, calcitonin gene-related peptide, vasoactive intestinal peptide, neuropeptide Y, NBNP, endothelin 1, and gastrin-releasing peptide), and neurotrophins (eg, nerve growth factor and brain-derived neurotrophic factor). Moreover, ion channels such as voltage-gated sodium channels, transient receptor potential vanilloid 1, transient receptor ankyrin, and transient receptor potential cation channel subfamily M (melastatin) member 8 play a crucial role. The main markers of nonhistaminergic pruriceptors are PAR-2 and MrgprX2. A notable phenomenon is the sensitization to pruritus, in which regardless of the initial cause of pruritus, there is an increased responsiveness of peripheral and central pruriceptive neurons to their normal or subthreshold afferent input in the context of chronic itch.
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Affiliation(s)
- Laurent Misery
- Laboratoire Interactions Neurones-Keratinocytes (LINK), University of Brest, Brest, France; Department of Dermatology and Venereology, University Hospital of Brest, Brest, France.
| | - Ophélie Pierre
- Laboratoire Interactions Neurones-Keratinocytes (LINK), University of Brest, Brest, France
| | - Christelle Le Gall-Ianotto
- Laboratoire Interactions Neurones-Keratinocytes (LINK), University of Brest, Brest, France; Department of Dermatology and Venereology, University Hospital of Brest, Brest, France
| | - Nicolas Lebonvallet
- Laboratoire Interactions Neurones-Keratinocytes (LINK), University of Brest, Brest, France
| | - Pavel V Chernyshov
- Department of Dermatology and Venereology, National Medical University, Kiev, Ukraine
| | - Raphaële Le Garrec
- Laboratoire Interactions Neurones-Keratinocytes (LINK), University of Brest, Brest, France
| | - Matthieu Talagas
- Laboratoire Interactions Neurones-Keratinocytes (LINK), University of Brest, Brest, France; Department of Dermatology and Venereology, University Hospital of Brest, Brest, France
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11
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Puzzovio PG, Levy BD, Levi-Schaffer F. CD300a Regulates Mouse Macrophage Functionality in Allergic Inflammation. Int Arch Allergy Immunol 2023; 184:720-726. [PMID: 36928079 PMCID: PMC10350930 DOI: 10.1159/000529606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Accepted: 02/06/2023] [Indexed: 03/18/2023] Open
Abstract
BACKGROUND CD300a is an inhibitory receptor (IR) expressed on several leukocytes, including mast cells (MCs) and macrophages (MΦ), important cells in allergic inflammation (AI). We have previously characterized CD300a role on MCs and in vivo in mouse models of allergy, in which the absence of CD300a resulted in increased inflammatory features and delayed resolution. However, the exact mechanism of this delayed resolution is unclear. Our hypothesis is that MΦ, important players in resolution, might be impaired when CD300a is absent. OBJECTIVES The aim of the study was to investigate CD300a-dependent functionality of mouse MΦ. METHOD MΦ were purified from the peritoneum of wild-type (WT) and CD300a-/- mice naïve and 48 h and 96 h after challenge with ovalbumin/alum. Phenotype switching was analyzed via specific M1-M2 inducers and markers. MΦ phagocytotic ability was assessed via Staphylococcus aureus pHrodo-conjugated bioparticles. The influence of MCs on MΦ was investigated by incubating WT MΦ with supernatants from non-activated and IgE-activated bone marrow-derived MCs (BMMCs) and analyzing functional responses. RESULTS Naïve CD300a-/- MΦ presented with increased sensitivity to activation when treated with LPS. Absence of CD300a results in increased Arg1 expression and increased IL-6 release when MΦ are purified from allergic peritonitis-induced mice. Similar results were obtained when CD300a-/- MΦ were purified 96 h after challenge. On the other hand, CD300a absence did not affect phagocytosis. WT MΦ incubated with supernatants of non-activated and IgE-activated BMMCs presented with increased iNOS expression and decreased Arg1 levels. CONCLUSIONS The IR CD300a controls the activation state of MΦ, and its absence could augment the inflammatory state seen in CD300a-/- mice. Moreover, MCs can also influence MΦ phenotype switching. This may partially explain the delayed AI resolution seen in these mice.
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Affiliation(s)
- Pier Giorgio Puzzovio
- Pharmacology and Experimental Therapeutics Unit, School of Pharmacy, Institute for Drug Research, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Bruce D. Levy
- Pulmonary and Critical Care Medicine, Department of Internal Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Francesca Levi-Schaffer
- Pharmacology and Experimental Therapeutics Unit, School of Pharmacy, Institute for Drug Research, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
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Guerrero D, Vo HTM, Lon C, Bohl JA, Nhik S, Chea S, Man S, Sreng S, Pacheco AR, Ly S, Sath R, Lay S, Missé D, Huy R, Leang R, Kry H, Valenzuela JG, Oliveira F, Cantaert T, Manning JE. Evaluation of cutaneous immune response in a controlled human in vivo model of mosquito bites. Nat Commun 2022; 13:7036. [PMID: 36396947 PMCID: PMC9672097 DOI: 10.1038/s41467-022-34534-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Accepted: 10/27/2022] [Indexed: 11/18/2022] Open
Abstract
Mosquito-borne viruses are a growing global threat. Initial viral inoculation occurs in the skin via the mosquito 'bite', eliciting immune responses that shape the establishment of infection and pathogenesis. Here we assess the cutaneous innate and adaptive immune responses to controlled Aedes aegypti feedings in humans living in Aedes-endemic areas. In this single-arm, cross-sectional interventional study (trial registration #NCT04350905), we enroll 30 healthy adult participants aged 18 to 45 years of age from Cambodia between October 2020 and January 2021. We perform 3-mm skin biopsies at baseline as well as 30 min, 4 h, and 48 h after a controlled feeding by uninfected Aedes aegypti mosquitos. The primary endpoints are measurement of changes in early and late innate responses in bitten vs unbitten skin by gene expression profiling, immunophenotyping, and cytokine profiling. The results reveal induction of neutrophil degranulation and recruitment of skin-resident dendritic cells and M2 macrophages. As the immune reaction progresses T cell priming and regulatory pathways are upregulated along with a shift to Th2-driven responses and CD8+ T cell activation. Stimulation of participants' bitten skin cells with Aedes aegypti salivary gland extract results in reduced pro-inflammatory cytokine production. These results identify key immune genes, cell types, and pathways in the human response to mosquito bites and can be leveraged to inform and develop novel therapeutics and vector-targeted vaccine candidates to interfere with vector-mediated disease.
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Affiliation(s)
- David Guerrero
- Institut Pasteur du Cambodge, Pasteur Network, Phnom Penh, Cambodia
| | - Hoa Thi My Vo
- Institut Pasteur du Cambodge, Pasteur Network, Phnom Penh, Cambodia
| | - Chanthap Lon
- International Center of Excellence in Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Phnom Penh, Cambodia
| | - Jennifer A Bohl
- Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD, USA
| | - Sreynik Nhik
- International Center of Excellence in Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Phnom Penh, Cambodia
| | - Sophana Chea
- International Center of Excellence in Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Phnom Penh, Cambodia
| | - Somnang Man
- International Center of Excellence in Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Phnom Penh, Cambodia
- National Center of Parasitology, Entomology, and Malaria Control, Phnom Penh, Cambodia
| | - Sokunthea Sreng
- International Center of Excellence in Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Phnom Penh, Cambodia
- National Center of Parasitology, Entomology, and Malaria Control, Phnom Penh, Cambodia
| | - Andrea R Pacheco
- International Center of Excellence in Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Phnom Penh, Cambodia
| | - Sokna Ly
- International Center of Excellence in Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Phnom Penh, Cambodia
| | - Rathanak Sath
- International Center of Excellence in Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Phnom Penh, Cambodia
| | - Sokchea Lay
- Institut Pasteur du Cambodge, Pasteur Network, Phnom Penh, Cambodia
| | - Dorothée Missé
- MIVEGEC, Univ. Montpellier, IRD, CNRS, 34000, Montpellier, France
| | - Rekol Huy
- National Center of Parasitology, Entomology, and Malaria Control, Phnom Penh, Cambodia
| | - Rithea Leang
- National Center of Parasitology, Entomology, and Malaria Control, Phnom Penh, Cambodia
| | - Hok Kry
- Kampong Speu Provincial District, Ministry of Health, Phnom Penh, Cambodia
| | - Jesus G Valenzuela
- Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD, USA
| | - Fabiano Oliveira
- Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD, USA
| | - Tineke Cantaert
- Institut Pasteur du Cambodge, Pasteur Network, Phnom Penh, Cambodia
| | - Jessica E Manning
- International Center of Excellence in Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Phnom Penh, Cambodia.
- Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD, USA.
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Histamine Activates Human Eosinophils via H2R and H4R Predominantly in Atopic Dermatitis Patients. Int J Mol Sci 2022; 23:ijms231810294. [PMID: 36142206 PMCID: PMC9499661 DOI: 10.3390/ijms231810294] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 08/29/2022] [Accepted: 08/31/2022] [Indexed: 12/02/2022] Open
Abstract
Atopic dermatitis (AD) is maintained by a variety of cells and inflammatory mediators, including eosinophils and histamine. We recently reported that eosinophils from AD patients highly express the H4R. However, its immunomodulatory function in eosinophils is still largely unexplored. In this study, transcriptome analysis of blood eosinophils from AD patients stimulated with histamine and the H4R agonist ST-1006 revealed several regulated genes (e.g., IL-18R, IL-1RL1, PDE4B, CXCR4) involved in inflammation. Subsequently, the impact of histamine on one of the strongly regulated genes, the IL-18 receptor (IL-18Rα), was investigated in detail. Stimulation with histamine induced the upregulation of IL-18Rα at mRNA and at the protein level in human eosinophils, which was more pronounced in cells from AD patients than in cells from healthy controls. IL-18 was upregulated via histamine as well. After pre-incubation with histamine and IFN-γ, subsequent stimulation with IL-18 resulted in an increased ECP mRNA expression. The activation of eosinophils by histamine, in combination with IFN-γ and IL-5, was also accompanied by an upregulation of CD69. Thus, our results indicate a crucial role of histamine in the upregulation of the IL-18/IL-18R axis and in the activation of human eosinophils from AD patients.
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14
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Chazot P. Molecular Biology of Histamine System, Volume 1. Int J Mol Sci 2022; 23:ijms23095026. [PMID: 35563417 PMCID: PMC9104633 DOI: 10.3390/ijms23095026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Revised: 04/12/2022] [Accepted: 04/23/2022] [Indexed: 11/16/2022] Open
Abstract
Histamine is arguably the most pleiotropic transmitted in the human body[…]
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Affiliation(s)
- Paul Chazot
- Department of Biosciences, University of Durham, Durham DH1 3LE, UK
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