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Zhang A, Mo L, Chen X, Tang P, Liu Y, Zhang W, Zhang C, Wang C, Zhang H, Yang P. Direct exposure to CpG and specific antigens mitigate airway allergy through modulating dendritic cell properties. Biomed Pharmacother 2024; 174:116510. [PMID: 38554528 DOI: 10.1016/j.biopha.2024.116510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Revised: 03/17/2024] [Accepted: 03/27/2024] [Indexed: 04/01/2024] Open
Abstract
BACKGROUND CpG oligodeoxynucleotide (CpG-ODN; CpG, in short) has been employed as an adjuvant in allergen specific immunotherapy (AIT) to treat allergic diseases. The underlying mechanism needs to be further explained. The aim of this study is to examine the mechanism by which CpG and dust mite extracts (DME, a specific antigen) alleviate experimental airway allergy. METHODS DME was used as the specific allergen to establish an airway allergy mouse model. The mice were directly exposed to DME and CpG through nasal instillations (the CpG.DME therapy). The response of DCs and allergic responses in the airways were assessed using immunological approaches. RESULTS The airway allergy reaction was effectively suppressed by CpG.DME therapy. The administration of CpG or DME alone did not have any significant suppressive effects on the airway allergic response. Direct exposure to CpG.DME induced type 1 DCs (DC1s) and plasmacytoid DCs (pDCs), while CpG alone induced DC1s and DME alone induced DC2s in the airway tissues. Both DC1s and pDCs were required for the induction of type 1 regulatory T cells in the airway tissues by CpG.DME therapy. Depletion of either pDCs or DC1s abolished the induction of Tr1 cells, and abolished the suppressive effects on airway allergic response by the CpG.DME therapy. CONCLUSIONS Direct exposure to CpG.DME induces DC1s and pDCs in the airway tissues. DC1s in synergy with pDCs induce type 1 regulatory T cells. The CpG.DME therapy is effective in suppressing allergic responses in mice with airway allergy.
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Affiliation(s)
- Aizhi Zhang
- Department of Critical Care Medicine, Second Hospital, Shanxi Medical University, Taiyuan, China
| | - Lihua Mo
- Department of General Medicine Practice, Third Affiliated Hospital, Shenzhen University, Shenzhen, China; Institute of Allergy & Immunology of Shenzhen University, State Key Laboratory of Respiratory Diseases Allergy Division at Shenzhen University, Shenzhen, China
| | - Xiaoxue Chen
- Department of Allergy Medicine, Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Taiyuan, China
| | - Ping Tang
- Department of General Medicine Practice, Third Affiliated Hospital, Shenzhen University, Shenzhen, China
| | - Yu Liu
- Department of General Medicine Practice, Third Affiliated Hospital, Shenzhen University, Shenzhen, China
| | - Wenkai Zhang
- Department of Critical Care Medicine, Second Hospital, Shanxi Medical University, Taiyuan, China
| | - Cheng Zhang
- Department of Critical Care Medicine, Second Hospital, Shanxi Medical University, Taiyuan, China
| | - Cailing Wang
- Department of Critical Care Medicine, Second Hospital, Shanxi Medical University, Taiyuan, China
| | - Huanping Zhang
- Department of Allergy Medicine, Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Taiyuan, China.
| | - Pingchang Yang
- Institute of Allergy & Immunology of Shenzhen University, State Key Laboratory of Respiratory Diseases Allergy Division at Shenzhen University, Shenzhen, China.
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Liu J, Xiao X, Liao Y, Xu X, Liu Y, Tang A, Zeng X, Yang P. Allergen specific immunotherapy regulates macrophage property in the airways. Arch Biochem Biophys 2024; 755:109984. [PMID: 38588908 DOI: 10.1016/j.abb.2024.109984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 03/14/2024] [Accepted: 04/02/2024] [Indexed: 04/10/2024]
Abstract
BACKGROUND Allergen specific immunotherapy (AIT) has been widely used in allergy clinics. The therapeutic effects of it are to be improved. Macrophages occupy the largest proportion of airway immune cells. The aim of this study is to measure the effects of nasal instillation AIT (nAIT) on airway allergy by regulating macrophage functions. METHODS An airway allergy mouse model was established with the ovalbumin-alum protocol. nAIT was conducted for mice with airway allergy through nasal instillation. The effects of nAIT were compared with subcutaneous injection AIT (SCIT) and sublingual AIT (SLIT). RESULTS Mice with airway allergy showed the airway allergic response, including lung inflammation, airway hyper responsiveness, serum specific IgE, increase in the amounts of eosinophil peroxidase, mouse mast cell protease-1, and Th2 cytokines in bronchoalveolar lavage fluid. nAIT had a much better therapeutic effect on the airway allergic response than SCIT and SLIT. Mechanistically, we observed better absorption of allergen in macrophages, better production of IL-10 by macrophages, and better immune suppressive functions in macrophages in mice received nAIT than SCIT and SLIT. CONCLUSIONS The nAIT has a much better therapeutic effect on suppressing the airway allergic response, in which macrophages play a critical role.
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Affiliation(s)
- Jiangqi Liu
- Department of Allergy, Longgang ENT Hospital & Shenzhen ENT Institute, Shenzhen, China
| | - Xiaojun Xiao
- Institute of Allergy & Immunology of Shenzhen University & State Key Laboratory of Respiratory Diseases Allergy Division at Shenzhen University, Shenzhen, China
| | - Yun Liao
- Shenzhen Clinical College, Guangzhou Chinese Traditional Medical & Pharmaceutical University, Guangzhou, China
| | - Xuejie Xu
- Institute of Allergy & Immunology of Shenzhen University & State Key Laboratory of Respiratory Diseases Allergy Division at Shenzhen University, Shenzhen, China
| | - Yu Liu
- Department of General Practical Medicine, Third Affiliated Hospital, Shenzhen University, Shenzhen, China
| | - Aifa Tang
- Department of General Practical Medicine, Third Affiliated Hospital, Shenzhen University, Shenzhen, China
| | - Xianhai Zeng
- Department of Allergy, Longgang ENT Hospital & Shenzhen ENT Institute, Shenzhen, China
| | - Pingchang Yang
- Department of Allergy, Longgang ENT Hospital & Shenzhen ENT Institute, Shenzhen, China; Institute of Allergy & Immunology of Shenzhen University & State Key Laboratory of Respiratory Diseases Allergy Division at Shenzhen University, Shenzhen, China.
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3
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Xiao Y, Zhang H, Liu Y, Mo L, Liao Y, Huang Q, Yang L, Zhou C, Liu J, Sun X, Yu H, Yang P. Endoplasmic reticulum stress drives macrophages to produce IL-33 to favor Th2 polarization in the airways. J Leukoc Biol 2024; 115:893-901. [PMID: 38517856 DOI: 10.1093/jleuko/qiad109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 07/23/2023] [Accepted: 07/31/2023] [Indexed: 03/24/2024] Open
Abstract
Interleukin (IL)-33 is a key driver of T helper 2 (Th2) cell polarization. Endoplasmic reticulum (ER) stress plays a role in the skewed T cell activation. The objective of this project is to elucidate the role of IL-33 derived from macrophages in inducing Th2 polarization in the airways. In this study, bronchoalveolar lavage fluids (BALF) were collected from patients with asthma and healthy control subjects. Macrophages were isolated from the BALF by flow cytometry cell sorting. An asthmatic mouse model was established using the ovalbumin/alum protocol. The results showed that increased IL33 gene activity and ER stress-related molecules in BALF-derived M2a macrophages was observed in asthmatic patients. Levels of IL33 gene activity in M2a cells were positively correlated with levels of asthma response in asthma patients. Sensitization exacerbated the ER stress in the airway macrophages, which increased the expression of IL-33 in macrophages of airway in sensitized mice. Conditional ablation of Il33 or Perk or Atf4 genes in macrophages prevented induction of airway allergy in mice. In conclusion, asthma airway macrophages express high levels of IL-33 and at high ER stress status. Inhibition of IL-33 or ER stress in macrophages can effectively alleviate experimental asthma.
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Affiliation(s)
- Yuan Xiao
- International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Huangping Zhang
- Department of Allergy Medicine, Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Taiyuan 030001, China
| | - Yu Liu
- Department of General Medicine and Respirology, Third Affiliated Hospital of Shenzhen University, Shenzhen 518055, China
| | - Lihua Mo
- Department of General Medicine and Respirology, Third Affiliated Hospital of Shenzhen University, Shenzhen 518055, China
- Guangdong Provincial Regional Disease Key Laboratory, Shenzhen 518055, China
- Institute of Allergy and Immunology, State Key Laboratory of Respiratory Diseases Allergy Division at Shenzhen University, Shenzhen 518055, China
| | - Yun Liao
- Guangdong Provincial Regional Disease Key Laboratory, Shenzhen 518055, China
- Institute of Allergy and Immunology, State Key Laboratory of Respiratory Diseases Allergy Division at Shenzhen University, Shenzhen 518055, China
| | - Qinmiao Huang
- Department of General Medicine and Respirology, Third Affiliated Hospital of Shenzhen University, Shenzhen 518055, China
| | - Liteng Yang
- Department of General Medicine and Respirology, Third Affiliated Hospital of Shenzhen University, Shenzhen 518055, China
| | - Caijie Zhou
- Shenzhen Hospital, Beijing University of Chinese Medicine, Shenzhen 518016, China
| | - Jiangqi Liu
- Institute of Allergy and Immunology, State Key Laboratory of Respiratory Diseases Allergy Division at Shenzhen University, Shenzhen 518055, China
| | - Xizhuo Sun
- Department of General Medicine and Respirology, Third Affiliated Hospital of Shenzhen University, Shenzhen 518055, China
| | - Haiqiong Yu
- Department of Respiratory and Critical Care Medicine, The Eighth Affiliated Hospital of Sun Yat-Sen University, Shenzhen 518055, Guangdong, China
| | - Pingchang Yang
- Guangdong Provincial Regional Disease Key Laboratory, Shenzhen 518055, China
- Institute of Allergy and Immunology, State Key Laboratory of Respiratory Diseases Allergy Division at Shenzhen University, Shenzhen 518055, China
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Zhang H, Wang L, Zhang A, Wang X, Liao Y, Chen X, Xu X, Yang L, Liu Y, Tang A, Yang P. Oligodeoxynucleotides containing CpG motifs (CpG-ODN) restores immune regulatory functions of airway macrophages of patients with asthma. Immunology 2024. [PMID: 38634546 DOI: 10.1111/imm.13792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Accepted: 04/05/2024] [Indexed: 04/19/2024] Open
Abstract
Allergic asthma is characterized by the polarization of Th2 cells and impaired immune regulation. Macrophages occupy the largest proportion of airway immune cells. This study aims to discover the mechanism that hinders the immune regulatory functions of airway macrophages. In this study, macrophages were isolated from cells in bronchoalveolar lavage fluids (BALF) collected from asthma patients and normal control (NC) subjects. The results indicated that macrophages occupied the largest portion of the cellular components in BALF. The frequency of IL-10+ macrophage was significantly lower in asthma patients than in NC subjects. The expression of IL-10 in macrophages of BALF was associated with the levels of asthma-related parameters. The immune-suppressive functions of BALF M0 cells were defective in asthma patients. The inducibility of IL-10 expression was impaired in BALF macrophages of asthma patients, which could be restored by exposing to CpG. In conclusion, the induction of IL-10 in macrophages of BALF in asthma patients was impaired, and it could be restored by exposure to CpG.
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Affiliation(s)
- Huanping Zhang
- Department of Allergy Medicine, Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Taiyuan, China
| | - Lihuan Wang
- Department of Allergy Medicine, Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Taiyuan, China
| | - Aizhi Zhang
- Department of Critical Care Medicine, Second Hospital Affiliated to Shanxi Medical University, Taiyuan, China
| | - Xiangyu Wang
- Marshall Laboratory of Biomedical Engineering, Shenzhen University, Shenzhen, China
- Department of Gastroenterology, Shenzhen Second People's Hospital, Shenzhen, China
| | - Yun Liao
- Shenzhen Clinical College, Guangzhou Chinese Traditional Medial & Pharmaceutical University, Guangzhou, China
| | - Xiaoxue Chen
- Department of Allergy Medicine, Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Taiyuan, China
| | - Xuejie Xu
- Institute of Allergy & Immunology, Shenzhen University, Shenzhen, China
- State Key Laboratory of Respiratory Diseases Allergy Division, Shenzhen University, Shenzhen, China
| | - Litao Yang
- Clinical Laboratory Department of The Second Affiliated Hospital, School of Medicine, The Chinese University of Hong Kong, Longgang District People's Hospital, Shenzhen, China
| | - Yu Liu
- Department of General Practice Medicine, Third Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Aifa Tang
- Department of General Practice Medicine, Third Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Pingchang Yang
- Institute of Allergy & Immunology, Shenzhen University, Shenzhen, China
- State Key Laboratory of Respiratory Diseases Allergy Division, Shenzhen University, Shenzhen, China
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Zeng H, Liu J, Mo L, Li M, Tang A, Zeng X, Zhao M, Yang P. The Olink proteomics profile in nasal secretion of patients with allergic rhinitis. Int Forum Allergy Rhinol 2024; 14:862-865. [PMID: 37733797 DOI: 10.1002/alr.23274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 09/05/2023] [Accepted: 09/11/2023] [Indexed: 09/23/2023]
Abstract
KEY POINTS Nasal secretions of allergic rhinitis patients were analyzed by Olink proteomics. Fifteen differentially expressed proteins (DEPs) were identified. The DEPs were significantly correlated with the total nasal symptom scores of patients with allergic rhinitis.
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Affiliation(s)
- Haotao Zeng
- Department of Allergy, Longgang ENT Hospital & Shenzhen ENT Institute, Shenzhen, China
| | - Jiangqi Liu
- Department of Allergy, Longgang ENT Hospital & Shenzhen ENT Institute, Shenzhen, China
| | - Lihua Mo
- Institute of Allergy & Immunology of Shenzhen University and State Key Laboratory of Respiratory Diseases Allergy Division at Shenzhen University, Shenzhen, China
- Department of General Practice Medicine, Third Affiliated Hospital, Shenzhen University, Shenzhen, China
| | - Minyao Li
- Institute of Allergy & Immunology of Shenzhen University and State Key Laboratory of Respiratory Diseases Allergy Division at Shenzhen University, Shenzhen, China
- Department of General Practice Medicine, Third Affiliated Hospital, Shenzhen University, Shenzhen, China
| | - Aifa Tang
- Department of General Practice Medicine, Third Affiliated Hospital, Shenzhen University, Shenzhen, China
| | - Xianhai Zeng
- Department of Allergy, Longgang ENT Hospital & Shenzhen ENT Institute, Shenzhen, China
| | - Miao Zhao
- Department of Allergy, Longgang ENT Hospital & Shenzhen ENT Institute, Shenzhen, China
| | - Pingchang Yang
- Institute of Allergy & Immunology of Shenzhen University and State Key Laboratory of Respiratory Diseases Allergy Division at Shenzhen University, Shenzhen, China
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6
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Gao P, Song S, Wang Y, Liu H, Wang X, Shu Q, Yang P, Zheng P. Semaphorin 3 a restores the ability of type 1 regulatory T cells to suppress food allergy. Immunol Res 2024; 72:320-330. [PMID: 37999823 DOI: 10.1007/s12026-023-09437-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 11/09/2023] [Indexed: 11/25/2023]
Abstract
Food allergy (FA) is a common immune disorder that involves dysfunctional immune regulation. More remedies for restoring immune regulation are necessary. Semaphorin 3 A (Sema3a) is a secreted protein of the semaphorin family, which plays a role in immune responses at all stages. The objective of this study is to gain an understanding of how Sema3a can restore the immune regulatory abilities of type 1 regulatory T cells (Tr1 cells). In this study, blood samples were taken from patients with FA. Tr1 cells were purified from blood samples using flow cytometry cell sorting, using LAG3 and CD49b as surface markers. RNA sequencing was employed to examine the characteristics of Tr1 cells. We observed an exaggerated increase in ER stress in peripheral Tr1 cells of FA patients. Enforced expression of spliced X-box protein-1 (XBP1s, one of the key molecules in ER stress) resulted in suppression of interleukin (IL)-10 expression in CD4+ T cells. Eukaryotic initiation factor 2a (eIF2a) mediated the effects of XBP1 on suppressing IL-10 expression in Tr1 cells. The use of Sema3a resulted in a decrease in ER stress, and an increase in IL-10 expression in Tr1 cells of FA patients. Sema3a administration reduced experimental FA by increasing the number of Tr1 cells. In conclusion, IL-10 expression in Tr1 cells is disturbed by ER stress. Sema3a treatment restores the expression of IL-10 and the immunosuppressive capability of Tr1 cells.
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Affiliation(s)
- Panpan Gao
- Department of Clinical Nutrition, Fifth Affiliated Hospital, Zhengzhou University, Zhengzhou, China
- Department of Gastroenterology, Fifth Affiliated Hospital, Zhengzhou University, Zhengzhou, China
| | - Shuo Song
- Marshall Laboratory of Biomedical Engineering, Shenzhen University, Shenzhen, China
- Department of General Medicine Practice, Third Affiliated Hospital of Shenzhen University, Shenzhen, China
- Institute of Allergy & Immunology, State Key Laboratory of Respiratory Disease Shenzhen University Division, Shenzhen University School of Medicine, Shenzhen, China
| | - Yanan Wang
- Department of Gastroenterology, Fifth Affiliated Hospital, Zhengzhou University, Zhengzhou, China
| | - Huazhen Liu
- Marshall Laboratory of Biomedical Engineering, Shenzhen University, Shenzhen, China
- Department of General Medicine Practice, Third Affiliated Hospital of Shenzhen University, Shenzhen, China
- Institute of Allergy & Immunology, State Key Laboratory of Respiratory Disease Shenzhen University Division, Shenzhen University School of Medicine, Shenzhen, China
| | - Xiangyu Wang
- Marshall Laboratory of Biomedical Engineering, Shenzhen University, Shenzhen, China
- Department of Gastroenterology, Shenzhen Second People's Hospital, Shenzhen, China
| | - Qing Shu
- Marshall Laboratory of Biomedical Engineering, Shenzhen University, Shenzhen, China
- Department of Gastroenterology, Shenzhen Second People's Hospital, Shenzhen, China
| | - Pingchang Yang
- Marshall Laboratory of Biomedical Engineering, Shenzhen University, Shenzhen, China.
- Institute of Allergy & Immunology, State Key Laboratory of Respiratory Disease Shenzhen University Division, Shenzhen University School of Medicine, Shenzhen, China.
| | - Pengyuan Zheng
- Department of Gastroenterology, Fifth Affiliated Hospital, Zhengzhou University, Zhengzhou, China.
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Feng B, Liu H, Yao W, Li Y, Wu G, Yang L, Yang P. Endoplasmic reticulum stress interferes with the development of type 1 regulating T cells. Inflamm Res 2024; 73:381-392. [PMID: 38265686 DOI: 10.1007/s00011-023-01841-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 12/12/2023] [Accepted: 12/14/2023] [Indexed: 01/25/2024] Open
Abstract
BACKGROUND A variety of stimuli can cause endoplasmic reticulum (ER) stress, which is a common cellular reaction. It is not yet clear how ER stress contributes to the pathogenesis of ulcerative colitis (UC). The deregulation of regulatory T cell (Treg) is associated with UC. The goal of this study is to shed light on how ER stress affects Treg's development. METHODS CD4+ CD25- T cells were isolated from blood samples collected from UC patients and healthy control (HC) subjects. ER stress-associated molecule expression in CD4+ CD25- T cell was assessed by RNA sequencing and RT-qPCR. RESULTS The presence of ER stress in peripheral CD4+ CD25- T cells was observed in patients with UC compared to HC subjects. The induction of ER stress in HC CD4+ CD25- T cells by polyclonal activation was made worse by the presence of 3-methyl-4-nitrophenol (MNP; a common environmental pollutant). Exposure to MNP in culture resulted in an increase in the expression of ring finger protein 20 (Rnf20) in CD4+ CD25- T cells. The synergistic effects of MNP and ER stress on the reduction of IL-10 levels in CD4+ CD25- T cells are mediated by Rnf20, which prevents the development of Tr1 cells. Inhibition of Rnf20 resulted in the development of Tr1 cells from CD4+ CD25- T cells in UC patients. CONCLUSIONS The synergistic effects of ER stress and MNP interfere with the development of Tr1 cells. The development of Tr1 from CD4+ CD25- T cells in patients with UC is re-established by Rnf20 inhibition.
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Affiliation(s)
- Baisui Feng
- Department of Gastroenterology, The Second Affiliated Hospital, Zhengzhou University, Zhengzhou, China
| | - Huazhen Liu
- Guangdong Provincial Regional Disease Key Laboratory, Shenzhen, China
- Institute of Allergy and Immunology of Shenzhen University, State Key Laboratory of Respiratory Diseases Allergy Division at Shenzhen University, Shenzhen, China
| | - Wenkai Yao
- Guangdong Provincial Regional Disease Key Laboratory, Shenzhen, China
- Institute of Allergy and Immunology of Shenzhen University, State Key Laboratory of Respiratory Diseases Allergy Division at Shenzhen University, Shenzhen, China
| | - Yan Li
- Department of Gastroenterology, The Second Affiliated Hospital, Zhengzhou University, Zhengzhou, China
| | - Gaohui Wu
- Department of Respirology, The Third Affiliated Hospital, Shenzhen University, Shenzhen, China
| | - Liteng Yang
- Department of Respirology, The Third Affiliated Hospital, Shenzhen University, Shenzhen, China.
| | - Pingchang Yang
- Guangdong Provincial Regional Disease Key Laboratory, Shenzhen, China.
- Institute of Allergy and Immunology of Shenzhen University, State Key Laboratory of Respiratory Diseases Allergy Division at Shenzhen University, Shenzhen, China.
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Liu X, Xu X, Liao Y, Yao W, Geng X, Zeng X, Sun X, Tang A, Yang P. Psychological stress to ovalbumin peptide-specific T-cell receptor transgenic mice impairs the suppressive ability of type 1 regulatory T cell. Immunology 2024. [PMID: 38366844 DOI: 10.1111/imm.13767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 02/03/2024] [Indexed: 02/18/2024] Open
Abstract
Numerous diseases of the immune system can be traced back to the malfunctioning of the regulatory T cells. The aetiology is unclear. Psychological stress can cause disruption to the immune regulation. The synergistic effects of psychological stress and immune response on immune regulation have yet to be fully understood. The intention of this study is to analyse the interaction between psychological stress and immune responses and how it affects the functional status of type 1 regulatory T (Tr1) cells. In this study, ovalbumin peptide T-cell receptor transgenic mice were utilised. Mice were subjected to restraint stress to induce psychological stress. An airway allergy murine model was established, in which a mouse strain with RING finger protein 20 (Rnf20)-deficient CD4+ T cells were used. The results showed that concomitant exposure to restraint stress and immune response could exacerbate endoplasmic reticulum stress in Tr1 cells. Corticosterone was responsible for the elevated expression of X-box protein-1 (XBP1) in mouse Tr1 cells after exposure to both restraint stress and immune response. XBP1 mediated the effects of corticosterone on inducing Rnf20 in Tr1 cells. The reduction of the interleukin-10 expression in Tr1 cells was facilitated by Rnf20. Inhibition of Rnf20 alleviated experimental airway allergy by restoring the immune regulatory ability of Tr1 cells. In conclusion, the functions of Tr1 cells are negatively impacted by simultaneous exposure to psychological stress and immune response. Tr1 cells' immune suppressive functions can be restored by inhibiting Rnf20, which has the translational potential for the treatment of diseases of the immune system.
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Affiliation(s)
- Xiaoyu Liu
- Institute of Allergy & Immunology of Shenzhen University School of Medicine, State Key Laboratory of Respiratory Diseases Shenzhen University Division, Shenzhen, China
- Guangdong Provincial Regional Disease Key Laboratory, Shenzhen, China
| | - Xuejie Xu
- Institute of Allergy & Immunology of Shenzhen University School of Medicine, State Key Laboratory of Respiratory Diseases Shenzhen University Division, Shenzhen, China
- Guangdong Provincial Regional Disease Key Laboratory, Shenzhen, China
| | - Yun Liao
- Institute of Allergy & Immunology of Shenzhen University School of Medicine, State Key Laboratory of Respiratory Diseases Shenzhen University Division, Shenzhen, China
- Guangdong Provincial Regional Disease Key Laboratory, Shenzhen, China
- Shenzhen Clinical College, Guangzhou Chinese Traditional Medical University, Shenzhen, China
| | - Wenkai Yao
- Institute of Allergy & Immunology of Shenzhen University School of Medicine, State Key Laboratory of Respiratory Diseases Shenzhen University Division, Shenzhen, China
- Guangdong Provincial Regional Disease Key Laboratory, Shenzhen, China
| | - Xiaorui Geng
- Department of Otolaryngology, Longgang ENT Hospital and Shenzhen ENT Institute, Shenzhen, China
| | - Xianhai Zeng
- Department of Otolaryngology, Longgang ENT Hospital and Shenzhen ENT Institute, Shenzhen, China
| | - Xizhuo Sun
- Department of General Practice Medicine and Respirology, Third Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Aifa Tang
- Department of General Practice Medicine and Respirology, Third Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Pingchang Yang
- Institute of Allergy & Immunology of Shenzhen University School of Medicine, State Key Laboratory of Respiratory Diseases Shenzhen University Division, Shenzhen, China
- Guangdong Provincial Regional Disease Key Laboratory, Shenzhen, China
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Peng D, Li J, Li Y, Bai L, Xiong A, He X, Li X, Ran Q, Zhang L, Jiang M, Wang J, Leung ELH, Yang P, Li G. MMP14 high macrophages orchestrate progressive pulmonary fibrosis in SR-Ag-induced hypersensitivity pneumonitis. Pharmacol Res 2024; 200:107070. [PMID: 38218353 DOI: 10.1016/j.phrs.2024.107070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 12/23/2023] [Accepted: 01/09/2024] [Indexed: 01/15/2024]
Abstract
Fibrotic hypersensitivity pneumonitis (FHP) is a fatal interstitial pulmonary disease with limited treatment options. Lung macrophages are a heterogeneous cell population that exhibit distinct subsets with divergent functions, playing pivotal roles in the progression of pulmonary fibrosis. However, the specific macrophage subpopulations and underlying mechanisms involved in the disease remain largely unexplored. In this study, a decision tree model showed that matrix metalloproteinase-14 (MMP14) had higher scores for important features in the up-regulated genes in macrophages from mice exposed to the Saccharopolyspora rectivirgula antigen (SR-Ag). Using single-cell RNA sequencing (scRNA-seq) analysis of hypersensitivity pneumonitis (HP) mice profiles, we identified MMP14high macrophage subcluster with a predominant M2 phenotype that exhibited higher activity in promoting fibroblast-to myofibroblast transition (FMT). We demonstrated that suppressing toll-like receptor 2 (TLR2) and nuclear factor kappa-B (NF-κB) could attenuate MMP14 expression and exosome secretion in macrophages stimulation with SR-Ag. The exosomes derived from MMP14-overexpressing macrophages were found to be more effective in regulating the transition of fibroblasts through exosomal MMP14. Importantly, it was observed that the transfer of MMP14-overexpressing macrophages into mice promoted lung inflammation and fibrosis induced by SR-Ag. NSC-405020 binding to the hemopexin domain (PEX) of MMP-14 ameliorated lung inflammation and fibrosis induced by SR-Ag in mice. Thus, MMP14-overexpressing macrophages may be an important mechanism contributing to the exacerbation of allergic reactions. Our results indicated that MMP14 in macrophages has the potential to be a therapeutic target for HP.
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Affiliation(s)
- Dan Peng
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, National-Regional Key Technology Engineering Laboratory for Medical Ultrasound, School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen 518060, China; Laboratory of Allergy and Precision Medicine, Chengdu Institute of Respiratory Health, the Third People's Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu 610000, China; Department of Pulmonary and Critical Care Medicine, Chengdu Third People's Hospital Branch of National Clinical Research Center for Respiratory Disease, Affiliated Hospital of ChongQing Medical University, Chengdu 610000, China
| | - Juan Li
- Laboratory of Allergy and Precision Medicine, Chengdu Institute of Respiratory Health, the Third People's Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu 610000, China; Department of Pulmonary and Critical Care Medicine, Chengdu Third People's Hospital Branch of National Clinical Research Center for Respiratory Disease, Affiliated Hospital of ChongQing Medical University, Chengdu 610000, China
| | - Yin Li
- Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Lingling Bai
- Laboratory of Allergy and Precision Medicine, Chengdu Institute of Respiratory Health, the Third People's Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu 610000, China; Department of Pulmonary and Critical Care Medicine, Chengdu Third People's Hospital Branch of National Clinical Research Center for Respiratory Disease, Affiliated Hospital of ChongQing Medical University, Chengdu 610000, China
| | - Anying Xiong
- Laboratory of Allergy and Precision Medicine, Chengdu Institute of Respiratory Health, the Third People's Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu 610000, China; Department of Pulmonary and Critical Care Medicine, Chengdu Third People's Hospital Branch of National Clinical Research Center for Respiratory Disease, Affiliated Hospital of ChongQing Medical University, Chengdu 610000, China
| | - Xiang He
- Laboratory of Allergy and Precision Medicine, Chengdu Institute of Respiratory Health, the Third People's Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu 610000, China; Department of Pulmonary and Critical Care Medicine, Chengdu Third People's Hospital Branch of National Clinical Research Center for Respiratory Disease, Affiliated Hospital of ChongQing Medical University, Chengdu 610000, China
| | - Xiaolan Li
- Laboratory of Allergy and Precision Medicine, Chengdu Institute of Respiratory Health, the Third People's Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu 610000, China; Department of Pulmonary and Critical Care Medicine, Chengdu Third People's Hospital Branch of National Clinical Research Center for Respiratory Disease, Affiliated Hospital of ChongQing Medical University, Chengdu 610000, China
| | - Qin Ran
- Laboratory of Allergy and Precision Medicine, Chengdu Institute of Respiratory Health, the Third People's Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu 610000, China; Department of Pulmonary and Critical Care Medicine, Chengdu Third People's Hospital Branch of National Clinical Research Center for Respiratory Disease, Affiliated Hospital of ChongQing Medical University, Chengdu 610000, China
| | - Lei Zhang
- Laboratory of Allergy and Precision Medicine, Chengdu Institute of Respiratory Health, the Third People's Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu 610000, China; Department of Pulmonary and Critical Care Medicine, Chengdu Third People's Hospital Branch of National Clinical Research Center for Respiratory Disease, Affiliated Hospital of ChongQing Medical University, Chengdu 610000, China
| | - Manling Jiang
- Laboratory of Allergy and Precision Medicine, Chengdu Institute of Respiratory Health, the Third People's Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu 610000, China; Department of Pulmonary and Critical Care Medicine, Chengdu Third People's Hospital Branch of National Clinical Research Center for Respiratory Disease, Affiliated Hospital of ChongQing Medical University, Chengdu 610000, China
| | - Junyi Wang
- Laboratory of Allergy and Precision Medicine, Chengdu Institute of Respiratory Health, the Third People's Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu 610000, China; Department of Pulmonary and Critical Care Medicine, Chengdu Third People's Hospital Branch of National Clinical Research Center for Respiratory Disease, Affiliated Hospital of ChongQing Medical University, Chengdu 610000, China
| | - Elaine Lai-Han Leung
- Cancer Center, Faculty of Health Sciences, University of Macau, Macau; MOE Frontiers Science Center for Precision Oncology, University of Macau, Macau.
| | - Pingchang Yang
- Institute of Allergy & Immunology, Shenzhen University School of Medicine, State Key Laboratory of Respiratory Disease Allergy Division at Shenzhen University, Shenzhen 518060, China.
| | - Guoping Li
- Laboratory of Allergy and Precision Medicine, Chengdu Institute of Respiratory Health, the Third People's Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu 610000, China; Department of Pulmonary and Critical Care Medicine, Chengdu Third People's Hospital Branch of National Clinical Research Center for Respiratory Disease, Affiliated Hospital of ChongQing Medical University, Chengdu 610000, China.
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Xue J, Liu Z, Liao Y, Zhang X, Liu Y, Mo L, Dong R, Li Q, Sun X, Xie J, Yang P. Undersized telomeres in regulatory T cells link to the pathogenesis of allergic rhinitis. iScience 2024; 27:108615. [PMID: 38205251 PMCID: PMC10777067 DOI: 10.1016/j.isci.2023.108615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/23/2023] [Accepted: 11/29/2023] [Indexed: 01/12/2024] Open
Abstract
Telomeres are an important biomarker in the cell destiny. The relationship between telomeres and regulatory T cells (Tregs) has not yet been investigated. The objective of this study is to evaluate the link between Tregs' telomere length and allergic rhinitis (AR)'s pathogenesis. Here, we report that low telomerase activity and high endoplasmic reticulum stress status were observed in Tregs from AR patients, as shown in the results. Immune regulatory molecules levels were correlated with the length of Tregs' telomeres. The immune-suppressive functions of Tregs were associated with the telomere length/Telomerase reverse transcriptase/Telomerase protein component 1 status in Tregs. The levels of telomere length/telomerase in airway Tregs were reduced by sensitization. Endoplasmic reticulum stress signaling pathway of proline-rich receptor-like protein kinase-eukaryotic translation initiation factor 2A (eIF2a) was associated with the regulation of telomerase. Inhibiting eIF2a had an effect on upregulating telomerase activity in Tregs and mitigating experimental AR.
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Affiliation(s)
- Jinmei Xue
- Department of Otolaryngology, Head & Neck Surgery, Second Hospital, Shanxi Medical University, Taiyuan, China
| | - Zhizhen Liu
- Department of Biochemistry and Molecular Biology, Shanxi Key Laboratory of Birth Defect and Cell Regeneration, Key Laboratory of Coal Environmental Pathogenicity and Prevention, Ministry of Education of China, Shanxi Medical University, Taiyuan, China
| | - Yun Liao
- Shenzhen Clinical School of Medicine, Guangzhou University of Chinese Medicine, Shenzhen, China
- Institute of Allergy & Immunology of Shenzhen University, State Key Laboratory of Respiratory Diseases Allergy Division at Shenzhen University, Shenzhen, China
| | - Xiwen Zhang
- Shenzhen Clinical School of Medicine, Guangzhou University of Chinese Medicine, Shenzhen, China
- Institute of Allergy & Immunology of Shenzhen University, State Key Laboratory of Respiratory Diseases Allergy Division at Shenzhen University, Shenzhen, China
| | - Yu Liu
- Department of General Practice Medicine, Third Affiliated Hospital, Shenzhen University, Shenzhen, China
| | - Lihua Mo
- Institute of Allergy & Immunology of Shenzhen University, State Key Laboratory of Respiratory Diseases Allergy Division at Shenzhen University, Shenzhen, China
- Department of General Practice Medicine, Third Affiliated Hospital, Shenzhen University, Shenzhen, China
| | - Rui Dong
- Department of Otolaryngology, Head & Neck Surgery, Second Hospital, Shanxi Medical University, Taiyuan, China
| | - Qiang Li
- Department of Otolaryngology, Head & Neck Surgery, Second Hospital, Shanxi Medical University, Taiyuan, China
| | - Xizhuo Sun
- Department of General Practice Medicine, Third Affiliated Hospital, Shenzhen University, Shenzhen, China
| | - Jun Xie
- Department of Biochemistry and Molecular Biology, Shanxi Key Laboratory of Birth Defect and Cell Regeneration, Key Laboratory of Coal Environmental Pathogenicity and Prevention, Ministry of Education of China, Shanxi Medical University, Taiyuan, China
| | - Pingchang Yang
- Institute of Allergy & Immunology of Shenzhen University, State Key Laboratory of Respiratory Diseases Allergy Division at Shenzhen University, Shenzhen, China
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Fan J, Ma L, Xie B, Qiu S, Song S, Tang Z, Wu Y, Huangfu H, Feng Y, Luo X, Yang P. Modulating endoplasmic reticulum stress attenuates mast cell degranulation. Int Immunopharmacol 2024; 126:111336. [PMID: 38056196 DOI: 10.1016/j.intimp.2023.111336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Revised: 11/16/2023] [Accepted: 11/29/2023] [Indexed: 12/08/2023]
Abstract
OBJECTIVES Degranulation of mast cells leads to direct allergic symptoms. The underlying mechanism needs to be explored further. Endoplasmic reticulum (ER) stress is involved in the pathogenesis of allergic conditions. The objective of this study is to gain a better understanding of the mechanism of mast cell degranulation. METHODS Bone marrow derived mast cells and mast cells isolated from the airway tissues were prepared. The role of ER stress in mediating the release of mast cells was tested. RNA sequencing (RNAseq) was used to investigate the genetic activities of mast cells. RESULTS Our observation showed that sensitization increased ER stress in mast cells. X-box-1 binding protein (XBP1) activity was linked to mast cell degranulation. Modulation of ER stress or XBP1 expression regulates the release of the mast cell mediator. XBP1 promoted the mediator release of mast cells by activating spleen tyrosine kinase (Syk). Activation of eukaryotic initiation factor 2a (eIF2a) inhibited XBP1 in mast cells. Semaphorin 3A was effective in preventing experimental allergic rhinitis (AR) due to its ability to suppress the release of mast cell mediators. CONCLUSIONS ER stress is associated with the mast cell degranulation. By inhibiting XBP1, the crucial molecule of ER stress, mast cell degranulation can be suppressed and experimental AR can be mitigated.
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Affiliation(s)
- Jialiang Fan
- Department of Pediatric Otolaryngology, Shenzhen Hospital, and Third School of Clinical Medicine, Southern Medical University, Shenzhen, China; Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Shenzhen, China; Institute of Allergy & Immunology, Shenzhen University School of Medicine, State Key Laboratory of Respiratory Disease Shenzhen University Division, Shenzhen, China
| | - Longpeng Ma
- Department of Pediatric Otolaryngology, Shenzhen Hospital, and Third School of Clinical Medicine, Southern Medical University, Shenzhen, China; Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Shenzhen, China; Institute of Allergy & Immunology, Shenzhen University School of Medicine, State Key Laboratory of Respiratory Disease Shenzhen University Division, Shenzhen, China
| | - Bailing Xie
- Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Shenzhen, China; Institute of Allergy & Immunology, Shenzhen University School of Medicine, State Key Laboratory of Respiratory Disease Shenzhen University Division, Shenzhen, China; Department of Otolaryngology, Head & Neck Surgery, First Hospital, Shanxi Medical University, Taiyuan, China
| | - Shuyao Qiu
- Department of Pediatric Otolaryngology, Shenzhen Hospital, and Third School of Clinical Medicine, Southern Medical University, Shenzhen, China
| | - Shuo Song
- Department of General Practice Medicine. Third Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Zhiyuan Tang
- Longgang ENT Hospital and Shenzhen ENT Institute, Shenzhen, China
| | - Yongjin Wu
- Longgang ENT Hospital and Shenzhen ENT Institute, Shenzhen, China
| | - Hui Huangfu
- Department of Otolaryngology, Head & Neck Surgery, First Hospital, Shanxi Medical University, Taiyuan, China
| | - Yan Feng
- Department of Otolaryngology, Head & Neck Surgery, First Hospital, Shanxi Medical University, Taiyuan, China
| | - Xiangqian Luo
- Department of Pediatric Otolaryngology, Shenzhen Hospital, and Third School of Clinical Medicine, Southern Medical University, Shenzhen, China.
| | - Pingchang Yang
- Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Shenzhen, China; Institute of Allergy & Immunology, Shenzhen University School of Medicine, State Key Laboratory of Respiratory Disease Shenzhen University Division, Shenzhen, China.
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12
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Yang P, Zeng CZ, Tao XW, Rong SW, Long Y, Zeng LK. [Zellweger syndrome caused by PEX6 gene variation in 2 cases and literature review]. Zhonghua Er Ke Za Zhi 2024; 62:43-48. [PMID: 38154976 DOI: 10.3760/cma.j.cn112140-20230914-00191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 12/30/2023]
Abstract
Objective: To summarize the clinical features and genetic characteristics of Zellweger spectrum disorder caused by PEX6 gene variation. Methods: This was a case series research. Clinical date and genetic results of 2 neonatal cases of Zellweger syndrome caused by PEX6 gene variation in Wuhan Children's Hospital, Tongji Medical College, Huazhong University of Science & Technology and Affiliated Hospital of Guangdong Medical University from July 2021 to July 2022 were retrospectively collected and analyzed. Literature up to August 2023 was searched from electronic databases of China National Knowledge Infrastructure (CNKI), Wanfang Data and PubMed with the combined keywords of "Zellweger syndrome" "Zellweger spectrum disorder", and "PEX6 gene" both in Chinese and English. The main clinical features and genetic characteristics of Zellweger spectrum disorder caused by PEX6 gene variation were summarized. Results: The 2 male neonates both developed clinical manifestations as dyspnea, hypotonia, feeding difficulties, enlarged fontanelle, and high palatine arch after birth. Biochemical parameters indicated elevated bile acids, and the cranial ultrasound showed the enlarged bilateral ventricles and subependymal cyst in both 2 neonates. Zellweger syndrome was confirmed by whole exome sequencing, and the results revealed PEX6 gene variation in the 2 neonates, including compound heterozygous variants c.315G>A and c.2095-3T>G, and homozygous variant c.506_507del. Case 1 was hospitalized for 5 days, and case 2 for 32 days; they both died shortly after being discharged (the specific time is unknown). Literature review found 26 patients, including 2 neonates in this study, with Zellweger spectrum disorder caused by PEX6 gene defect reported in 1 Chinese article and 11 English articles. Clinical features included hearing loss (19 cases), developmental delay (19 cases), vision impairment (19 cases), elevated very long chain fatty acids (17 cases), brain malformations (15 cases), hypotonia (12 cases), hepatic insufficiency (12 cases), distinctive facies (10 cases), and dental impairment (9 cases). Compound heterozygous variations dominated the variation types (15 cases), and the frameshift variations (16 cases) were the main pathogenic variations. Conclusions: Zellweger spectrum disorder should be considered when neonates show hypotonia, feeding difficulty, distinctive facial appearance, brain malformations and failure of hearing screening, or when older children show retinitis pigmentosa, sensorineural hearing loss, amelogenesis imperfecta and developmental delays. Detection of genetic variation in the PEX gene is crucial for definitive diagnosis.
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Affiliation(s)
- P Yang
- School of Medicine, Department of Medicine, Wuhan University of Science and Technology, Wuhan 430000, China
| | - C Z Zeng
- Department of Pediatric Intensive Care Unit, Affiliated Hospital of Guangdong Medical University, Zhanjiang 524000, China
| | - X W Tao
- Division of Neonatology, Wuhan Children's Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science & Technology, Wuhan 430000, China
| | - S W Rong
- Department of Pediatric Intensive Care Unit, Affiliated Hospital of Guangdong Medical University, Zhanjiang 524000, China
| | - Y Long
- Division of Neonatology, Wuhan Children's Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science & Technology, Wuhan 430000, China
| | - L K Zeng
- Division of Neonatology, Wuhan Children's Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science & Technology, Wuhan 430000, China
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Geng X, Xue J, Zheng H, Suo L, Zeng H, Zhao M, Song S, Liu Y, Zhao C, Yang P. The association between CD46 expression in B cells and the pathogenesis of airway allergy. Biochim Biophys Acta Mol Basis Dis 2024; 1870:166845. [PMID: 37579982 DOI: 10.1016/j.bbadis.2023.166845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 08/05/2023] [Accepted: 08/08/2023] [Indexed: 08/16/2023]
Abstract
CD46 can facilitate the production of IgE. Activation of CD46 may contribute to the pathogenesis of allergic diseases. The aim of this study is to elucidate the association between CD46 expression in B cells and the pathogenesis of airway allergy. In this study, peripheral B cells were collected from a group of patients suffering from allergic rhinitis (AR). An AR mouse model was established to test the role of CD46 in the development of airway allergy. The results showed elevated amounts of IGE in peripheral CD46+ B cells of AR patients. CD46+ B cells of AR patients showed high reticulum endoplasmic (ER) stress status. The expression of CD46 in peripheral B cells was positively associated with the AR response in patients. The production of IgE in mice with airway allergy was prevented by ablating CD46 expression in B cells. Exposure to aluminum hydroxide up regulated the expression of Cd46 in B cells through exacerbating ER stress. Administration of Cd46 shRNA carrying nanoparticles attenuated experimental airway allergy. In conclusion, peripheral B cells in AR patients display elevated CD46 expression. Cd46 ablation in B cells can mitigate the production of IgE in mice and attenuate experimental airway allergy.
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Affiliation(s)
- Xiaorui Geng
- Department of Otolaryngology, Longgang ENT Hospital and Shenzhen ENT Institute, Shenzhen, China
| | - Jinmei Xue
- Department of Otolaryngology, Head & Neck Surgery, Second Hospital, Shanxi Medical University, Taiyuan, China
| | - Haoyue Zheng
- Shenzhen Clinical School of Medicine, Guangzhou University of Chinese Medicine, Shenzhen, China; Institute of Allergy & Immunology of Shenzhen University, State Key Laboratory of Respiratory Diseases Allergy Division at Shenzhen University, Shenzhen, China
| | - Limin Suo
- Department of Otolaryngology, Head & Neck Surgery, Second Hospital, Shanxi Medical University, Taiyuan, China
| | - Haotao Zeng
- Department of Otolaryngology, Longgang ENT Hospital and Shenzhen ENT Institute, Shenzhen, China
| | - Miao Zhao
- Department of Otolaryngology, Longgang ENT Hospital and Shenzhen ENT Institute, Shenzhen, China
| | - Shuo Song
- Institute of Allergy & Immunology of Shenzhen University, State Key Laboratory of Respiratory Diseases Allergy Division at Shenzhen University, Shenzhen, China; Department of General Practical Medicine, Third Affiliated Hospital, Shenzhen University, Shenzhen, China
| | - Yu Liu
- Institute of Allergy & Immunology of Shenzhen University, State Key Laboratory of Respiratory Diseases Allergy Division at Shenzhen University, Shenzhen, China.
| | - Changqing Zhao
- Department of Otolaryngology, Head & Neck Surgery, Second Hospital, Shanxi Medical University, Taiyuan, China.
| | - Pingchang Yang
- Shenzhen Clinical School of Medicine, Guangzhou University of Chinese Medicine, Shenzhen, China.
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14
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Xue J, Suo L, An Y, Wang X, Zhang S, Liu H, Wu Y, Sun X, Zhao C, Yang P. Phosphatidylserine promotes immunotherapy for airway allergy. Immunol Lett 2023; 264:46-55. [PMID: 38008186 DOI: 10.1016/j.imlet.2023.11.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 11/06/2023] [Accepted: 11/23/2023] [Indexed: 11/28/2023]
Abstract
Type 1 regulatory T cells (Tr1 cells) play an important role in the maintenance of the immune homeostasis in the body. The induction of Tr1 cell is to be further investigated. The interaction of phosphatidylserine (PS) with TIM3 has immune regulation functions. The objective of this study is to elucidate the role of PS-TIM3 signals in inducing Tr1 cells. In this study, mice were treated using PS or specific immunotherapy by nasal instillation. A murine model of allergic rhinitis was developed using ovalbumin as a specific antigen. We found that PS-containing nasal instillation induced Tr1 cells in the airway tissues. PS promoted gene activities associated with IL-10 through activation of TIM3 in CD4+ T cells. TIM3 mediated the effects of PS on inducing Tr1 cells, in which the TIM3- PI3K-AKT pathway played a critical role. PS boosted allergen-specific immunotherapy by inducing specific antigen Tr1 cell generation. Concomitant administration of PS and SIT resulted in better therapeutic effects on AR. In conclusion, the data demonstrate that PS can promote the specific immunotherapy for AR through inducing antigen specific Tr1 cells in the airway tissues.
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Affiliation(s)
- Jinmei Xue
- Department of Otolaryngology, Head & Neck Surgery, Second Hospital, Shanxi Medical University, Taiyuan, China
| | - Limin Suo
- Department of Otolaryngology, Head & Neck Surgery, Second Hospital, Shanxi Medical University, Taiyuan, China
| | - Yunfang An
- Department of Otolaryngology, Head & Neck Surgery, Second Hospital, Shanxi Medical University, Taiyuan, China
| | - Xinxin Wang
- Guangdong Provincial Regional Disease Key Laboratory, Shenzhen, China; Institute of Allergy & Immunology, Shenzhen University School of Medicine, State Key Laboratory of Respiratory Diseases Allergy Division at Shenzhen University, Shenzhen, China
| | - Shuang Zhang
- Guangdong Provincial Regional Disease Key Laboratory, Shenzhen, China; Institute of Allergy & Immunology, Shenzhen University School of Medicine, State Key Laboratory of Respiratory Diseases Allergy Division at Shenzhen University, Shenzhen, China
| | - Huazhen Liu
- Guangdong Provincial Regional Disease Key Laboratory, Shenzhen, China; Institute of Allergy & Immunology, Shenzhen University School of Medicine, State Key Laboratory of Respiratory Diseases Allergy Division at Shenzhen University, Shenzhen, China
| | - Yongjin Wu
- Department of General Practical Medicine, Third Affiliated Hospital, Shenzhen, China
| | - Xizhuo Sun
- Department of General Practical Medicine, Third Affiliated Hospital, Shenzhen, China
| | - Changqing Zhao
- Department of Otolaryngology, Head & Neck Surgery, Second Hospital, Shanxi Medical University, Taiyuan, China.
| | - Pingchang Yang
- Guangdong Provincial Regional Disease Key Laboratory, Shenzhen, China; Institute of Allergy & Immunology, Shenzhen University School of Medicine, State Key Laboratory of Respiratory Diseases Allergy Division at Shenzhen University, Shenzhen, China; Department of General Practical Medicine, Third Affiliated Hospital, Shenzhen, China.
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Zeng LS, Yang P, Qin YY, He WH, Cao L. Pharmacological activity and clinical progress of Triptolide and its derivatives LLDT-8, PG490-88Na, and Minnelide: a narrative review. Eur Rev Med Pharmacol Sci 2023; 27:10181-10203. [PMID: 37975343 DOI: 10.26355/eurrev_202311_34294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 11/19/2023]
Abstract
Triptolide, a compound isolated from a Chinese medicinal herb, has potent antitumor, immunosuppressive, and anti-inflammatory properties. Due to its interesting structural features and diverse pharmacological activities, it has attracted great interest by the Society of Organic Chemistry and Pharmaceutical Chemistry. However, its clinical potential is greatly hampered by limited aqueous solubility and oral bioavailability, and multi-organ toxicity. In recent years, various derivatives of Triptolide have made varying degrees of progress in the treatment of inflammatory diseases, autoimmune diseases, and cancer. The most researched and potentially clinically valuable of them were (5R)-5-hydroxytriptolide (LLDT-8), PG490-88Na (F6008), and Minnelide. In this review, we provide an overview of the advancements made in triptolide and several of its derivatives' biological activity, mechanisms of action, and clinical development. We also summarized some prospects for the future development of triptolide and its derivatives. It is hoped to contribute to a better understanding of the progress in this field, make constructive suggestions for further studies of Triptolide, and provide a theoretical reference for the rational development of new drugs.
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Affiliation(s)
- L-S Zeng
- Department of Nephrology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China.
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16
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Abstract
Dental caries is a dynamic disease induced by the unbalance between demineralization of dental hard tissues caused by biofilm and remineralization of them; however, although various effective remineralization methods have been well documented, it is a challenge to reestablish the balance by enhancing remineralization alone while ignoring the antibacterial therapy. Therefore, the integration of remineralizing and antibacterial technologies offers a promising strategy to halt natural caries progression in clinical practice. Here, the conception of interrupting dental caries (IDC) was proposed based on the development of dual-functional coating with remineralizing and antibacterial properties. In this study, bovine serum albumin (BSA) loaded octenidine (OCT) successfully to form a BSA-OCT composite. Subsequently, through fast amyloid-like aggregation, the phase-transited BSA-OCT (PTB-OCT) coating can be covered on teeth, resin composite, or sealant surfaces in 30 min by a simple smearing process. The PTB-OCT coating showed satisfactory effects in promoting the remineralization of demineralized enamel and dentin in vitro. Moreover, this coating also exerted significant acid-resistance stability and anti-biofilm properties. Equally importantly, this coating exhibited promising abilities in reducing the microleakage between the tooth and resin composite in vitro and preventing primary and secondary caries in vivo. In conclusion, this novel dual-functional PTB-OCT coating could reestablish the balance between demineralization and remineralization in the process of caries, thereby potentially preventing or arresting caries.
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Affiliation(s)
- D Lu
- School of Stomatology, Hospital of Stomatology, Tianjin Medical University, Tianjin, China
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou, China
| | - F Li
- School of Stomatology, Hospital of Stomatology, Tianjin Medical University, Tianjin, China
| | - C Zhao
- School of Stomatology, Hospital of Stomatology, Tianjin Medical University, Tianjin, China
| | - Y Ye
- School of Stomatology, Hospital of Stomatology, Tianjin Medical University, Tianjin, China
| | - X Zhang
- School of Stomatology, Hospital of Stomatology, Tianjin Medical University, Tianjin, China
| | - P Yang
- Key Laboratory of Applied Surface and Colloid Chemistry Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, China
| | - X Zhang
- School of Stomatology, Hospital of Stomatology, Tianjin Medical University, Tianjin, China
- Institute of Stomatology, Tianjin Medical University, Tianjin, China
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Luo J, Zhou C, Wang S, Tao S, Liao Y, Shi Z, Tang Z, Wu Y, Liu Y, Yang P. Cortisol synergizing with endoplasmic reticulum stress induces regulatory T-cell dysfunction. Immunology 2023; 170:334-343. [PMID: 37475539 DOI: 10.1111/imm.13669] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 05/18/2023] [Indexed: 07/22/2023] Open
Abstract
The dysfunction of regulatory T cell (Treg) is associated with the pathogenesis of many immune diseases. The regiments used to re-establish Treg's function are currently unsatisfactory and need to be improved. The purpose of this study is to elucidate the synergistic effects of cortisol and endoplasmic reticulum (ER) stress on impairing regulatory T cell functions. In this study, blood samples were collected from patients with food allergy (FA). Immune cells were purified from blood specimens by flow cytometry. A mouse model of FA was established with ovalbumin as a specific antigen. We observed that serum cortisol levels of FA patients were negatively correlated with peripheral Treg counts. Overwhelmed ER stress status was detected in Tregs of FA patients. The antigen-specific immune response induced ER stress in Tregs, which was exacerbated by concurrent cortisol exposure. ER stress mediated the effects of cortisol on impairing the immune suppressive ability of Tregs. The expression of Rnf20 was observed in Tregs upon exposure to cortisol. Rnf20 reduced the expression of Foxp3 and transforming growth factor (TGF)-β in Tregs. Rnf20 inhibition re-established the immunosuppressive functions of Tregs obtained in patients with FA. The experimental FA in mice was attenuated by inhibition of Rnf20 in Tregs. In summary, specific immune response in synergy with cortisol to induce the expression of Rnf20 in Tregs. Rnf20 reduces the levels of Foxp3 and TGF-β to impair the immune suppressive function. Inhibition of Rnf20 can restore the immune suppressive ability of Tregs obtained from FA patients.
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Affiliation(s)
- Jiangping Luo
- Department of Chinese Traditional Medicine, Third Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Caijie Zhou
- Beijing University of Chinese Medicine Shenzhen Hospital (Longgang), Shenzhen, China
| | - Shiqi Wang
- Shenzhen Clinical College, Guangzhou Chinese Traditional Medical University, Shenzhen, China
- Institute of Allergy & Immunology of Shenzhen University School of Medicine, Shenzhen, China
- State Key Laboratory of Respiratory Diseases Shenzhen University Division, Shenzhen, China
- Shenzhen Key Laboratory of Allergy & Immunology, Shenzhen, China
- Guangdong Provincial Standardization Allergen Engineering Research Center, Shenzhen, China
| | - Shuang Tao
- Shenzhen Clinical College, Guangzhou Chinese Traditional Medical University, Shenzhen, China
- Institute of Allergy & Immunology of Shenzhen University School of Medicine, Shenzhen, China
- State Key Laboratory of Respiratory Diseases Shenzhen University Division, Shenzhen, China
- Shenzhen Key Laboratory of Allergy & Immunology, Shenzhen, China
- Guangdong Provincial Standardization Allergen Engineering Research Center, Shenzhen, China
| | - Yun Liao
- Shenzhen Clinical College, Guangzhou Chinese Traditional Medical University, Shenzhen, China
- Institute of Allergy & Immunology of Shenzhen University School of Medicine, Shenzhen, China
- State Key Laboratory of Respiratory Diseases Shenzhen University Division, Shenzhen, China
- Shenzhen Key Laboratory of Allergy & Immunology, Shenzhen, China
- Guangdong Provincial Standardization Allergen Engineering Research Center, Shenzhen, China
| | - Zhaohui Shi
- Department of Allergy, Longgang ENT Hospital, Shenzhen ENT Institute & Shenzhen Key Laboratory of ENT, Shenzhen, China
| | - Zhiyuan Tang
- Department of Allergy, Longgang ENT Hospital, Shenzhen ENT Institute & Shenzhen Key Laboratory of ENT, Shenzhen, China
| | - Yongjin Wu
- Department of Allergy, Longgang ENT Hospital, Shenzhen ENT Institute & Shenzhen Key Laboratory of ENT, Shenzhen, China
| | - Yu Liu
- Department of Chinese Traditional Medicine, Third Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Pingchang Yang
- Institute of Allergy & Immunology of Shenzhen University School of Medicine, Shenzhen, China
- State Key Laboratory of Respiratory Diseases Shenzhen University Division, Shenzhen, China
- Shenzhen Key Laboratory of Allergy & Immunology, Shenzhen, China
- Guangdong Provincial Standardization Allergen Engineering Research Center, Shenzhen, China
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18
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Ma F, Feng X, Wang E, Ma C, Wu J, He S, Tian Y, Qiu P, Tan L, Liu J, Li J, Hu S, Yang P, Ning Y. The regulation of tolerogenic dendritic cells by a Chinese herb formula improves abortion prone in mice. Am J Reprod Immunol 2023; 90:e13714. [PMID: 37881127 DOI: 10.1111/aji.13714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Revised: 04/07/2023] [Accepted: 05/05/2023] [Indexed: 10/27/2023] Open
Abstract
BACKGROUND Abortion prone (AP) is a common clinical event. The underlying mechanism remains unclear. Traditional Chinese formulas are known to be efficient in the management of abortion. The purpose of this study is to observe the effects of Anzitiaochongtang (AZT), a traditional formulation of Chinese medicine, on improving AP in mice by regulating immune tolerance. METHODS An established abortion model (CBA/J×DBA/2) was employed. AZT was prepared and administered to mice in a manner consistent with clinical practice. Tolerogenic dendritic cells (tDC) and type 1 regulatory T cells (Tr1 cell) in mice were analyzed by immunological approaches to be used as representative immune tolerant parameters. RESULTS An AP model was established with CBA/J × DBA/2 mice. The expression of IL-10 in tDC and Tr1 cell frequency in the mouse decidua tissues were lower in the AP group than that in the normal pregnancy (NP) group. Administration of AZT up regulated the expression of IL-10 in tDCs and Tr1 cell generation in the decidua tissues, and improved the pregnancy and tissue structure in AP mice. The main mechanism by which AZT improves pregnancy in AP mice is that AZT enhanced the expression of galectin-9 in the epithelial cells of decidua tissues. Galectin 9 activates TIM3 on DCs to promote the IL-10 expression. The DCs induced more Tr1 cells in the decidua tissues. CONCLUSIONS Dysfunctional tDCs were detected in the AP decidua tissues. Administration of AZT improved pregnancy in AP mice by regulating tDC function and generation of Tr1 cells in the maternal-fetal interface.
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Affiliation(s)
- Fei Ma
- Department of Traditional Chinese Medicine, Affiliated Shenzhen Maternity & Child Healthcare Hospital, Southern Medical University, Shenzhen, China
| | - Xiaoyang Feng
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Erfeng Wang
- Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Chang Ma
- Department of Respirology, Second Affiliated Hospital, Harbin Medical University, Harbin, China
| | - Jiaman Wu
- Department of Traditional Chinese Medicine, Affiliated Shenzhen Maternity & Child Healthcare Hospital, Southern Medical University, Shenzhen, China
| | - Shan He
- Department of Pharmacy, Affiliated Shenzhen Maternity & Child Healthcare Hospital, Southern Medical University, Shenzhen, China
| | - Ying Tian
- Department of Traditional Chinese Medicine, Affiliated Shenzhen Maternity & Child Healthcare Hospital, Southern Medical University, Shenzhen, China
| | - Pingping Qiu
- Department of Traditional Chinese Medicine, Affiliated Shenzhen Maternity & Child Healthcare Hospital, Southern Medical University, Shenzhen, China
| | - Liya Tan
- Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Jin Liu
- Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Jia Li
- Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Suqin Hu
- Guangdong Provincial Regional Disease Key Laboratory, Shenzhen, China
- Institute of Allergy & Immunology of Shenzhen University, State Key Laboratory of Respiratory Disease Allergy Division at Shenzhen University, Shenzhen, China
| | - Pingchang Yang
- Guangdong Provincial Regional Disease Key Laboratory, Shenzhen, China
- Institute of Allergy & Immunology of Shenzhen University, State Key Laboratory of Respiratory Disease Allergy Division at Shenzhen University, Shenzhen, China
| | - Yan Ning
- Department of Traditional Chinese Medicine, Affiliated Shenzhen Maternity & Child Healthcare Hospital, Southern Medical University, Shenzhen, China
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19
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Chen T, Zheng B, Yang P, Zhang Z, Su Y, Chen Y, Luo L, Luo D, Lin Y, Xie R, Zeng L. The Incidence and Prognosis Value of Perineural Invasion in Rectal Carcinoma: From Meta-Analyses and Real-World Clinical Pathological Features. Clin Oncol (R Coll Radiol) 2023; 35:e611-e621. [PMID: 37263883 DOI: 10.1016/j.clon.2023.05.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 04/13/2023] [Accepted: 05/16/2023] [Indexed: 06/03/2023]
Abstract
AIMS Perineural invasion (PNI) is a special type of metastasis of several cancers and has been reported as being a factor for poor prognosis in colorectal carcinoma. However, investigations of PNI in only rectal cancer and a comprehensive analysis combining meta-analyses with real-world case studies remain lacking. MATERIALS AND METHODS First, articles from 2000 to 2020 concerning the relationship between PNI and rectal cancer prognoses and clinical features were meta-analysed. Subsequently, we carried out a retrospective analysis of 312 rectal cancer cases that underwent radical surgery in the real world. The incidence of PNI and the relationship between PNI and prognosis, as well as clinicopathological factors, were investigated. RESULTS The incidence of PNI was 23.09% and 33.01% in the meta-analysis and clinical cases, respectively. PNI occurred as early as stage I (2.94%). Moreover, neoadjuvant therapy significantly reduced the PNI-positive rate (20.34% versus 26.54%). Both meta-analysis and real-world clinical case studies suggested that PNI-positive patients had poorer prognoses than PNI-negative patients. We established an effective risk model consisting of T stage, differentiation and lymphovascular invasion to predict PNI in rectal cancer. CONCLUSION PNI is a poor prognostic factor for rectal cancer and could occur even in stage I. Additionally, neoadjuvant therapy could sufficiently reduce the PNI-positive rate. T stage, lymphovascular invasion and differentiation grade were independent risk factors for PNI and the risk model that included these factors could predict the probability of PNI.
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Affiliation(s)
- T Chen
- Department of Abdominal Oncology, The Cancer Center of the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - B Zheng
- Department of Abdominal Oncology, The Cancer Center of the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - P Yang
- Department of Pathology, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - Z Zhang
- Department of Radiology, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - Y Su
- Department of General Surgery, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - Y Chen
- Department of Abdominal Oncology, The Cancer Center of the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - L Luo
- Department of Abdominal Oncology, The Cancer Center of the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - D Luo
- Department of Abdominal Oncology, The Cancer Center of the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - Y Lin
- Department of Pathology, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - R Xie
- Department of Abdominal Oncology, The Cancer Center of the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China.
| | - L Zeng
- Department of Abdominal Oncology, The Cancer Center of the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China.
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Chen Y, Yang P, Du S, Zhuang Y, Hu Y, Zeng ZC. Stereotactic Body Radiotherapy Combined with Sintilimab in Patients with Recurrent or Oligometastatic Hepatocellular Carcinoma: A Phase II Clinical Trial. Int J Radiat Oncol Biol Phys 2023; 117:S106-S107. [PMID: 37784281 DOI: 10.1016/j.ijrobp.2023.06.067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) The anti-tumor activity and tolerability of stereotactic body radiotherapy (SBRT) and PD-1 inhibitors have been illustrated in retrospective studies, but the results vary across a broad range. This study aimed to assess the clinical efficacy of SBRT combined with sintilimab in patients with recurrent or oligometastatic hepatocellular carcinoma (HCC). MATERIALS/METHODS This trial involved patients with recurrent or oligometastatic HCC intravenously treated with SBRT plus sintilimab every 3 weeks for 12 months or until disease progression. The primary endpoint was progression-free survival (PFS). RESULTS Twenty-five patients were enrolled from August 14, 2019, to August 23, 2021. The median treatment duration was 10.2 months. SBRT was delivered at a median dose of 54 in six fractions. The median follow-up time was 21.9 months, and 32 targeted lesions among 25 patients were evaluated for treatment response according to the Response Evaluation Criteria in Solid Tumors version 1.1. The median PFS was 19.7 months, with PFS rates of 68% and 45.3% at 12 and 24 months, respectively. The median overall survival (OS) was not reached, with OS rates of 91.5% and 83.2% at 12 and 24 months, respectively. The 1- and 2-year local control rate were 100% and 90.9%, respectively. The confirmed objective response rate and disease control rate was 96%, and 96%, respectively. Most adverse events were graded as 1 or 2, and grade 3 adverse events were observed in three patients. CONCLUSION SBRT plus sintilimab is an effective, well-tolerated treatment regimen for patients with recurrent or oligometastatic HCC.
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Affiliation(s)
- Y Chen
- Department of Radiation Oncology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - P Yang
- Department of Radiation Oncology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - S Du
- Zhongshan Hospital, Fudan University, Shanghai, China
| | - Y Zhuang
- Department of Radiation Oncology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Y Hu
- Department of Radiation Oncology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Z C Zeng
- Department of Radiation Oncology, Zhongshan Hospital, Fudan University, Shanghai, China
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21
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Wu JM, Yang H, Li Q, Luo TF, Yang P, Huang WC. [Clinical efficacy of local injection of platelet-rich plasma combined with double-layer artificial dermis in treating wounds with exposed tendon on extremity]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2023; 39:849-856. [PMID: 37805801 DOI: 10.3760/cma.j.cn501225-20230420-00134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 10/09/2023]
Abstract
Objective: To investigate the clinical efficacy of local injection of platelet-rich plasma (PRP) combined with double-layer artificial dermis in treating wounds with exposed tendon on extremity. Methods: A retrospective observational study was conducted. From December 2017 to October 2022, 16 patients were admitted to Department of Orthopaedic Trauma of the Second Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, and 32 patients were admitted to Department of Burns and Plastic Surgery of Guiyang Steel Factory Staff Hospital. All the patients had wounds with exposed tendon on extremity caused by various reasons and met the inclusion criteria. There were 39 males and 9 females, aged 26 to 58 years. The patients were divided into PRP alone group, artificial dermis alone group, and PRP+artificial dermis group, with 16 patients in each group. The wounds were treated with autologous PRP, double-layer artificial dermis, or thei combination of autologous PRP and double-layer artificial dermis, followed by autologous split-thickness scalp grafting after good growth of granulation tissue. On the 7th day after the secondary surgery, the autograft survival was observed, and the survival rate was calculated. The wound healing time and length of hospital stay of patients were recorded. At 3 and 6 months after wound healing, the Vancouver scar scale (VSS) was used to score the pigmentation, height, vascularity, and pliability of scars, and the total score was calculated. Adverse reactions during the entire treatment process were recorded. Data were statistically analyzed with chi-square test, Fisher's exact probability test, one-way analysis of variance, least significant difference test, Kruskal-Wallis H test, Nemenyi test, and Bonferroni correction. Results: On the 7th day after the secondary surgery, there was no statistically significant difference in the autograft survival rate of patients among PRP alone group, artificial dermis alone group, and PRP+artificial dermis group (P>0.05). The wound healing time and length of hospital stay of patients in PRP+artificial dermis group were (20.1±3.0) and (24±4) d, respectively, which were significantly shorter than (24.4±5.5) and (30±8) d in PRP alone group (P<0.05) and (24.8±4.9) and (32±8) d in artificial dermis alone group (P<0.05). At 3 and 6 months after wound healing, the pliability scores of patients in PRP+artificial dermis group were significantly lower than those in PRP alone group (with Z values of 12.91 and 15.69, respectively, P<0.05) and artificial dermis alone group (with Z values of 12.50 and 12.91, respectively, P<0.05). There were no statistically significant differences in pigmentation, vascularity, height scores, and total score of scar of patients among the three groups (P>0.05). In artificial dermis alone group, one patient experienced partial liquefaction and detachment of the double-layer artificial dermis due to local infection of Staphylococcus epidermidis, which received wound dressing change, second artificial dermis transplantation, and subsequent treatment as before. No adverse reactions occurred in the remaining patients during the whole treatment process. Conclusions: Local injection of PRP combined with double-layer artificial dermis is effective in treating wounds with exposed tendon on extremity, which can not only significantly shorten wound healing time and length of hospital stay, but also improve scar pliability after wound healing to some extent in the long term. It is a clinically valuable treatment technique that is worth promoting and applying.
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Affiliation(s)
- J M Wu
- Department of Burns and Plastic Surgery, the Second Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang 550001, China Department of Burns and Plastic Surgery, Guiyang Steel Factory Staff Hospital, Guiyang 550005, China
| | - H Yang
- Department of Burns and Plastic Surgery, Guiyang Steel Factory Staff Hospital, Guiyang 550005, China
| | - Q Li
- Department of Burns and Plastic Surgery, Guiyang Steel Factory Staff Hospital, Guiyang 550005, China
| | - T F Luo
- Department of Burns and Plastic Surgery, Guiyang Steel Factory Staff Hospital, Guiyang 550005, China
| | - P Yang
- Department of Orthopaedic Trauma, the Second Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang 550001, China
| | - W C Huang
- Department of Orthopaedic Trauma, the Second Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang 550001, China
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22
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Xu X, Cai YX, Liu YH, Shen Y, Pan Y, Yao H, Wang XL, Yang P. [Comparison of incubation periods of infections of Omicron variants BA.2 and BF.7 in Beijing]. Zhonghua Liu Xing Bing Xue Za Zhi 2023; 44:1397-1401. [PMID: 37743272 DOI: 10.3760/cma.j.cn112338-20230316-00153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 09/26/2023]
Abstract
Objective: To understand the incubation periods of infections of Omicron variants BA.2 and BF.7 in two COVID-19 epidemics and related factors in Beijing and provide basic parameters for the establishment of 2019-nCoV dynamic transmission model. Methods: The COVID-19 cases with specific exposure time and onset time in the Omicron variant BA.2 infection epidemic in April 2022 and in the Omicron variant BF.7 infection epidemic in October 2022 in Beijing were included in the analysis. The rank-sum test was conducted to estimate the differences in the incubation period between two types of infections. The incubation period distribution of the Omicron variant infection was fitted by using Weibull, Gamma and lognormal distributions. Multivariate analysis of variance was conducted to assess the effects of age, sex, variant type and vaccination status on the incubation periods. Results: A total of 64 cases of variant BA.2 infection and 58 cases of variant BF.7 infection were included. The M(Q1,Q3) of the incubation period was 3.00 (3.00, 4.00) days for BA.2 infection and 3.00 (2.00, 3.25) days for BF.7 infection. The lognormal distribution was the best fit. Multivariate analysis of variance showed that there were some differences in the incubation periods between two types of infections of Omicron variants, and the incubation period of variant BF.7 infection was shorter than that of variant BA.2 infection. Conclusion: Omicron variant BF.7 infection had shorter incubation period compared with Omicron variant BA.2 infection.
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Affiliation(s)
- X Xu
- Beijing Office of Global Health, Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - Y X Cai
- Beijing Office of Global Health, Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - Y H Liu
- Beijing Office of Global Health, Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - Y Shen
- Beijing Office of Global Health, Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - Y Pan
- Institute for Infectious Disease and Endemic Disease Control, Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - H Yao
- Beijing Office of Global Health, Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - X L Wang
- Beijing Office of Global Health, Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - P Yang
- Central Office, Beijing Center for Disease Prevention and Control, Beijing 100013, China
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Jiang M, Yu H, Luo L, Zhang L, Xiong A, Wang J, Wang Q, Liu Y, Liu S, Xiong Y, Yang P, Chang C, Zhang J, He X, Li G. Single cell characteristics of patients with vaccine-related adverse reactions following inactivated COVID-19 vaccination. Hum Vaccin Immunother 2023; 19:2246542. [PMID: 37614152 PMCID: PMC10453975 DOI: 10.1080/21645515.2023.2246542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 07/26/2023] [Accepted: 08/06/2023] [Indexed: 08/25/2023] Open
Abstract
A good safety and immunogenicity profile was reported in Phase I and II clinical trials of inactivated SARS-CoV-2 vaccines. Here, we report two cases associated with vaccine-associated adverse events, including one patient with fever and another with anaphylactic shock resulting from inactivated SARS-CoV-2 vaccination. Cell sub-types and the importance of genetic characteristics were assessed using single-cell mRNA sequencing and machine learning. Overall, the patient with fever showed a significant increase in the numbers of cytotoxic CD8 T cells and MKI67high CD8 T cells. A potential concurrent infection with the Epstein-Barr virus enhanced interferon type I responses to vaccination against the virus. STAT1, E2F1, YBX1, and E2F7 played a key role in the transcription regulation of MKI67high CD8 T cells. In contrast, the patient with allergic shock displayed predominant increases in the numbers of S100A9high monocytes, activated CD4 T cells, and PPBPhigh megakaryocytes. The decision tree showed that LYZ and S100A8 in S100A9high monocytes contributed to the degranulation of neutrophils and activation of neutrophils involved in allergic shock. PPBP and PF4 were major contributors to platelet degranulation. These findings highlight the diversity of adverse reactions following inactivated SARS-CoV-2 vaccination and show the emerging role of cellular subtypes and central genes in vaccine-associated adverse reactions.
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Affiliation(s)
- Manling Jiang
- Laboratory of Allergy and Precision Medicine, Chengdu Institute of Respiratory Health, the Third People’s Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, China
- Department of Pulmonary and Critical Care Medicine, Chengdu Third People’s Hospital Branch of National Clinical Research Center for Respiratory Disease, Affiliated Hospital of ChongQing Medical University, Chengdu, China
| | - Haiqiong Yu
- Department of Pulmonary and Critical Care Medicine, The Eight Affiliated Hospital of Sun Yat-Sen University, Shenzhen, China
| | - Li Luo
- Laboratory of Allergy and Precision Medicine, Chengdu Institute of Respiratory Health, the Third People’s Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, China
- Department of Pulmonary and Critical Care Medicine, Chengdu Third People’s Hospital Branch of National Clinical Research Center for Respiratory Disease, Affiliated Hospital of ChongQing Medical University, Chengdu, China
| | - Lei Zhang
- Laboratory of Allergy and Precision Medicine, Chengdu Institute of Respiratory Health, the Third People’s Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, China
- Department of Pulmonary and Critical Care Medicine, Chengdu Third People’s Hospital Branch of National Clinical Research Center for Respiratory Disease, Affiliated Hospital of ChongQing Medical University, Chengdu, China
| | - Anying Xiong
- Laboratory of Allergy and Precision Medicine, Chengdu Institute of Respiratory Health, the Third People’s Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, China
- Department of Pulmonary and Critical Care Medicine, Chengdu Third People’s Hospital Branch of National Clinical Research Center for Respiratory Disease, Affiliated Hospital of ChongQing Medical University, Chengdu, China
| | - Junyi Wang
- Laboratory of Allergy and Precision Medicine, Chengdu Institute of Respiratory Health, the Third People’s Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, China
- Department of Pulmonary and Critical Care Medicine, Chengdu Third People’s Hospital Branch of National Clinical Research Center for Respiratory Disease, Affiliated Hospital of ChongQing Medical University, Chengdu, China
| | - Qianhui Wang
- Laboratory of Allergy and Precision Medicine, Chengdu Institute of Respiratory Health, the Third People’s Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, China
- Department of Pulmonary and Critical Care Medicine, Chengdu Third People’s Hospital Branch of National Clinical Research Center for Respiratory Disease, Affiliated Hospital of ChongQing Medical University, Chengdu, China
| | - Yao Liu
- Laboratory of Allergy and Precision Medicine, Chengdu Institute of Respiratory Health, the Third People’s Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, China
- Department of Pulmonary and Critical Care Medicine, Chengdu Third People’s Hospital Branch of National Clinical Research Center for Respiratory Disease, Affiliated Hospital of ChongQing Medical University, Chengdu, China
| | - Shengbin Liu
- Laboratory of Allergy and Precision Medicine, Chengdu Institute of Respiratory Health, the Third People’s Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, China
- Department of Pulmonary and Critical Care Medicine, Chengdu Third People’s Hospital Branch of National Clinical Research Center for Respiratory Disease, Affiliated Hospital of ChongQing Medical University, Chengdu, China
| | - Ying Xiong
- Department of Pulmonary and Critical Care Medicine, Sichuan friendship hospital, Chengdu, China
| | - Pingchang Yang
- Institute of Allergy & Immunology, Shenzhen University School of Medicine, State Key Laboratory of Respiratory Disease Allergy Division at Shenzhen University, Shenzhen, China
| | - Christopher Chang
- Division of Immunology, Allergy and Rheumatology, Joe DiMaggio Children’s Hospital, Memorial Healthcare System, Hollywood, FL, USA
| | - Jianquan Zhang
- Department of Pulmonary and Critical Care Medicine, The Eight Affiliated Hospital of Sun Yat-Sen University, Shenzhen, China
| | - Xiang He
- Laboratory of Allergy and Precision Medicine, Chengdu Institute of Respiratory Health, the Third People’s Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, China
- Department of Pulmonary and Critical Care Medicine, Chengdu Third People’s Hospital Branch of National Clinical Research Center for Respiratory Disease, Affiliated Hospital of ChongQing Medical University, Chengdu, China
| | - Guoping Li
- Laboratory of Allergy and Precision Medicine, Chengdu Institute of Respiratory Health, the Third People’s Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, China
- Department of Pulmonary and Critical Care Medicine, Chengdu Third People’s Hospital Branch of National Clinical Research Center for Respiratory Disease, Affiliated Hospital of ChongQing Medical University, Chengdu, China
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24
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He W, He K, Liu X, Ye L, Lin X, Ma L, Yang P, Wu X. Modulating the allergenicity and functional properties of peanut protein by covalent conjugation with polyphenols. Food Chem 2023; 415:135733. [PMID: 36854241 DOI: 10.1016/j.foodchem.2023.135733] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 02/14/2023] [Accepted: 02/15/2023] [Indexed: 02/20/2023]
Abstract
Peanut protein is a common food allergen. Our previous study demonstrated that the allergenicity of Ara h1 declines after covalent conjugation with polyphenols in vitro; however, how polyphenols affect the structure, function, and allergenicity of peanut protein extract (PPE) after covalent conjugating needs clarifying. Here, we assessed how the structure, function, and allergenicity of PPE changed after covalent conjugation with epigallocatechin-3-gallate (PPE-EGCG) and chlorogenic acid (PPE-CA). PPE covalently conjugated with EGCG and CA using the alkali treatment method. Multi-spectroscopy showed that the structure of PPE-EGCG/CA conjugate changed, becoming less folded. In contrast, the functional properties of PPE significantly improved. The allergenicity of PPE-EGCG/CA significantly declined in vitro and in vivo experiments. Our findings confirm that covalent conjugation of PPE with EGCG and CA reduces the allergenicity and improves the functional properties of PPE by changing the structure of the protein.
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Affiliation(s)
- Weiyi He
- School of Public Health, Health Science Center, Shenzhen University, Shenzhen 518060, Guangdong Province, PR China; State Key Laboratory of Respiratory Disease for Allergy at Shenzhen University, Shenzhen University School of Medicine, Shenzhen 518060, Guangdong Province, PR China; Department of Respirology & Allergy. Third Affiliated Hospital of Shenzhen University, Shenzhen 518020, Guangdong Province, PR China
| | - Kan He
- School of Public Health, Health Science Center, Shenzhen University, Shenzhen 518060, Guangdong Province, PR China
| | - Xiaoyu Liu
- State Key Laboratory of Respiratory Disease for Allergy at Shenzhen University, Shenzhen University School of Medicine, Shenzhen 518060, Guangdong Province, PR China
| | - Liying Ye
- School of Public Health, Health Science Center, Shenzhen University, Shenzhen 518060, Guangdong Province, PR China
| | - Xiao Lin
- School of Public Health, Health Science Center, Shenzhen University, Shenzhen 518060, Guangdong Province, PR China
| | - Li Ma
- Longgang ENT Hospital, Institute of ENT, Shenzhen Key Laboratory of ENT, Shenzhen 518060, PR China
| | - Pingchang Yang
- State Key Laboratory of Respiratory Disease for Allergy at Shenzhen University, Shenzhen University School of Medicine, Shenzhen 518060, Guangdong Province, PR China; Department of Respirology & Allergy. Third Affiliated Hospital of Shenzhen University, Shenzhen 518020, Guangdong Province, PR China.
| | - Xuli Wu
- School of Public Health, Health Science Center, Shenzhen University, Shenzhen 518060, Guangdong Province, PR China; State Key Laboratory of Respiratory Disease for Allergy at Shenzhen University, Shenzhen University School of Medicine, Shenzhen 518060, Guangdong Province, PR China.
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Nachlas WO, Moy A, Ritchie N, Donovan J, Fournelle JH, Allaz J, Almeev R, Bullock ES, DesOrmeau JW, Goemann K, Hoffmann R, Jokubauskas P, Jöns N, Lam T, Locock A, Ruscitto DM, Vicenzi EP, von der Handt A, Wade B, Yang P, Zhang D. Evaluating Consensus in Experimental K-ratios from over 40 WDS and EDS Measurement Systems. Microsc Microanal 2023; 29:225-226. [PMID: 37613484 DOI: 10.1093/micmic/ozad067.100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/25/2023]
Affiliation(s)
- W O Nachlas
- Department of Geoscience, University of Wisconsin, Madison, WI, United States
| | - A Moy
- Department of Geoscience, University of Wisconsin, Madison, WI, United States
| | - N Ritchie
- National Institute of Standards and Technology, Gaithersburg, MD, United States
| | - J Donovan
- CAMCOR, University of Oregon, Eugene, OR, United States
| | - J H Fournelle
- Department of Geoscience, University of Wisconsin, Madison, WI, United States
| | - J Allaz
- Department of Earth Sciences, ETH Zurich, Switzerland
| | - R Almeev
- Institute of Mineralogy, Leibniz University Hannover, Germany
| | - E S Bullock
- Earth and Planets Laboratory, Carnegie Science, Washington, DC, United States
| | - J W DesOrmeau
- Department of Geological Sciences & Engineering, University of Nevada, Reno, NV, United States
| | - K Goemann
- Central Science Laboratory, University of Tasmania, Hobart, TAS, Australia
| | - R Hoffmann
- Institute for Geology, Mineralogy and Geophysics, Ruhr-Universität Bochum, Germany
| | | | - N Jöns
- Institute for Geology, Mineralogy and Geophysics, Ruhr-Universität Bochum, Germany
| | - T Lam
- Museum Conservation Institute, Smithsonian Institution, Suitland, MD, United States
| | - A Locock
- Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, Alberta, Canada
| | - D M Ruscitto
- General Electric Research, Niskayuna, NY, United States
| | - E P Vicenzi
- Museum Conservation Institute, Smithsonian Institution, Suitland, MD, United States
| | - A von der Handt
- Department of Earth, Ocean and Atmospheric Sciences, University of British Columbia, Vancouver, British Columbia, Canada
| | - B Wade
- Adelaide Microscopy, The University of Adelaide, Adelaide, SA, Australia
| | - P Yang
- Department of Earth Sciences, University of Manitoba, Canada
| | - D Zhang
- Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China
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Liao Y, Tao S, Wang S, Wu G, Yao W, Yang L, Huang Q, Liu Y, Yang G, Yang P. 5-HT modulates the properties of dendritic cells to interfere with the development of type 1 regulating T cells. Mol Immunol 2023; 160:161-167. [PMID: 37451234 DOI: 10.1016/j.molimm.2023.07.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 06/23/2023] [Accepted: 07/02/2023] [Indexed: 07/18/2023]
Abstract
BACKGROUND 5-hydroxytryptamine (5-HT, serotonin) is a major mediator in allergic reactions. The number of tolerogenic dendritic cell (tolDC) and regulatory T cell is reduced in allergic disorders. The mechanism is unclear. The objective of this study is to elucidate the role of 5-HT in interfering with tolDC generation and regulatory Type 1 T cell (Tr1 cell). METHODS BALB/c mice were treated with 5-HT-containing nasal instillations. The frequency of tolDC and Tr1 cell was evaluated by flow cytometry. RESULTS Following treatment with 5-HT nasal instillations for one week, the frequency of tolDC and Tr1 cell was significantly reduced in the respiratory tissues. Higher levels of SOS1 were detected in DCs isolated from the airway tissues of mice treated with 5-HT. A complex of SOS1 and c-Maf was detected in DCs in response to 5-HT stimulation. The expression of IL-10 was suppressed by the presence of 5-HT. The induction of Tr1 cell by DC was substantially compromised by 5-HT. CONCLUSIONS 5-HT inhibits the expression of IL-10 in DCs. DCs primed with 5-HT lose the ability to induce Tr1 cells.
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Affiliation(s)
- Yun Liao
- Departments of Otolaryngology & Allergy. Longgang Central Hospital. Shenzhen. China; Shenzhen Clinical College, Guangzhou Chinese Traditional Medical University, Shenzhen, China; Institute of Allergy & Immunology of Shenzhen University, State Key Laboratory of Respiratory Diseases Allergy Division at Shenzhen University, Shenzhen, China
| | - Shuang Tao
- Shenzhen Clinical College, Guangzhou Chinese Traditional Medical University, Shenzhen, China; Institute of Allergy & Immunology of Shenzhen University, State Key Laboratory of Respiratory Diseases Allergy Division at Shenzhen University, Shenzhen, China
| | - Shiqi Wang
- Shenzhen Clinical College, Guangzhou Chinese Traditional Medical University, Shenzhen, China; Institute of Allergy & Immunology of Shenzhen University, State Key Laboratory of Respiratory Diseases Allergy Division at Shenzhen University, Shenzhen, China
| | - Gaohui Wu
- Departments of General Practice Medicine & Allergy. Third Affiliated Hospital of Shenzhen University. Shenzhen. China
| | - Wenkai Yao
- Institute of Allergy & Immunology of Shenzhen University, State Key Laboratory of Respiratory Diseases Allergy Division at Shenzhen University, Shenzhen, China
| | - Liteng Yang
- Departments of General Practice Medicine & Allergy. Third Affiliated Hospital of Shenzhen University. Shenzhen. China
| | - Qinmiao Huang
- Departments of General Practice Medicine & Allergy. Third Affiliated Hospital of Shenzhen University. Shenzhen. China
| | - Yu Liu
- Departments of General Practice Medicine & Allergy. Third Affiliated Hospital of Shenzhen University. Shenzhen. China.
| | - Gui Yang
- Departments of Otolaryngology & Allergy. Longgang Central Hospital. Shenzhen. China.
| | - Pingchang Yang
- Institute of Allergy & Immunology of Shenzhen University, State Key Laboratory of Respiratory Diseases Allergy Division at Shenzhen University, Shenzhen, China.
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Hao XY, Yang P, Zhang W, Liu H, Sun XH, Xiao XB, Wang JW, Li ZL, Li LH, Wang SY, He J, Li XL, Jing HM. [Clinical features and prognostic factors of elderly patients with mantle cell lymphoma]. Zhonghua Xue Ye Xue Za Zhi 2023; 44:495-500. [PMID: 37550206 PMCID: PMC10450559 DOI: 10.3760/cma.j.issn.0253-2727.2023.06.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Indexed: 08/09/2023]
Abstract
Objective: To examine the clinical characteristics and prognostic factors of elderly patients with mantle cell lymphoma (MCL) and the impact of nutrition and underlying diseases on the prognosis of elderly patients with MCL. Methods: retrospectively analyzed 255 elderly patients with MCL from 11 medical centers, including Peking University Third Hospital between January 2000 and February 2021. We analyzed clinical data, such as age, gender, Mantle Cell Lymphoma International Prognostic Index score, and treatment options, and performed univariate and multivariate prognostic analysis. We performed a comprehensive geriatric assessment on elderly MCL patients with medical records that included retraceable underlying disease and albumin levels, and we investigated the impact of basic nutrition and underlying disorders on MCL prognosis in the elderly. Results: There were 255 senior individuals among the 795 MCL patients. Elderly MCL was more common in males (78.4%), with a median age of 69 yr (ages 65-88), and the majority (88.6%) were identified at a late stage. The 3-yr overall survival (OS) rate was 42.0%, with a 21.2% progression-free survival (PFS) rate. The overall response rate (ORR) was 77.3%, with a 33.3% total remission rate. Elderly patients were more likely than younger patients to have persistent underlying illnesses, such as hypertension. Multivariate analysis revealed that variables related with poor PFS included age of ≥80 (P=0.021), Ann Arbor stage Ⅲ-Ⅳ (P=0.003), high LDH level (P=0.003), involvement of bone marrow (P=0.014). Age of ≥80 (P=0.001) and a high LDH level (P=0.003) were risk factors for OS. The complete geriatric assessment revealed that renal deficiency was associated with poorer OS (P=0.047) . Conclusions: Elderly MCL patients had greater comorbidities. Age, LDH, renal function, bone marrow involvement, and Ann Arbor stage are all independent risk factors for MCL in the elderly.
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Affiliation(s)
- X Y Hao
- Peking University Third Hospital, Beijing 100191, China
| | - P Yang
- Peking University Third Hospital, Beijing 100191, China
| | - W Zhang
- Peking Union Medical College Hospital, Beijing 100730, China
| | - H Liu
- Beijing Hospital, Beijing 100730, China
| | - X H Sun
- The Second Hospital of Dalian Medical University, Dalian 116027, China
| | - X B Xiao
- The 5th Medical Center of PLA General Hospital, Beijing 100039, China
| | - J W Wang
- Beijing Tongren Hospital, Beijing 100730, China
| | - Z L Li
- China-Japan Friendship Hospital, Beijing 100029, China
| | - L H Li
- Beijing Tsinghua Changgung Hospital, Beijing 102218, China
| | - S Y Wang
- The First Hospital of Harbin Medical University, Harbin 150001, China
| | - J He
- The First Hospital of China Medical University, Shenyang 110001, China
| | - X L Li
- Liaoning Cancer Hospital&Institute, Shenyang 110042, China
| | - H M Jing
- Peking University Third Hospital, Beijing 100191, China
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Li L, Xu X, Wang X, Zhang S, Yao W, Liu J, Liu Z, Yang P. Galectin-9 in synergy with NF-κB inhibition restores immune regulatory capability in dendritic cells of subjects with food allergy. Clin Exp Immunol 2023:7190166. [PMID: 37279535 PMCID: PMC10361740 DOI: 10.1093/cei/uxad062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Indexed: 06/08/2023] Open
Abstract
The pathogenesis of immune tolerance disruption is not fully understood. Galectin-9 (Gal9) has immune regulatory functions. The objective of the present study is to assess the role of Gal9 in maintaining immune tolerance. Blood and intestinal biopsies were taken from patients with food allergy (FA). The status of tolerogenic dendritic cells (tDC) and type 1 regulatory T cells (Tr1 cells) in the samples was evaluated and used as representative parameters of immune tolerance. An FA mouse model was established to assess the role of Gal9 in maintaining immune tolerance. We found that peripheral CD11c + CD5 + CD1d + tDC frequency was significantly lower in FA patients as compared to Health Control (HC) subjects. There was no significant change in CD11c + DC frequency between the FA group and the HC group. The expression of IL-10 in peripheral tDCs was lower in the FA group than that in the HC group. A positive correlation was detected between the serum levels of IL-10 and Gal9. The expression of Gal9 was observed in intestinal biopsies, which was positively correlated with the serum levels of Gal9 as well as serum IL-10 levels. Peripheral Tr1 cells had lower frequencies in the FA group than in the non-FA (Con) group. tDCs demonstrated the ability to generate Tr1 cells, which was weaker in the FA group as compared with the Con group. Exposure of FA tDCs to Gal9 in culture restored the ability to generate Tr1 cells. In summary, the lower frequency of tDC and Tr1 cell of FA patients was associated with the levels of Gal9. The presence of Gal9 restored the capacity of tDC to generate Tr1 cells.
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Affiliation(s)
- Linjing Li
- Department of Gastroenterology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xuejie Xu
- Guangdong Provincial Regional Disease Key Laboratory, Shenzhen, China
- Institute of Allergy & Immunology of Shenzhen University, State Key Laboratory of Respiratory Diseases Allergy Division at Shenzhen University, Shenzhen, China
| | - Xinxin Wang
- Guangdong Provincial Regional Disease Key Laboratory, Shenzhen, China
- Institute of Allergy & Immunology of Shenzhen University, State Key Laboratory of Respiratory Diseases Allergy Division at Shenzhen University, Shenzhen, China
| | - Shuang Zhang
- Guangdong Provincial Regional Disease Key Laboratory, Shenzhen, China
- Institute of Allergy & Immunology of Shenzhen University, State Key Laboratory of Respiratory Diseases Allergy Division at Shenzhen University, Shenzhen, China
| | - Wenkai Yao
- Guangdong Provincial Regional Disease Key Laboratory, Shenzhen, China
- Institute of Allergy & Immunology of Shenzhen University, State Key Laboratory of Respiratory Diseases Allergy Division at Shenzhen University, Shenzhen, China
| | - Jiangqi Liu
- Department of Allergy. Longgang ENT Hospital & Shenzhen ENT Institute. Shenzhen, China
| | - Zhiqiang Liu
- Department of Allergy. Longgang ENT Hospital & Shenzhen ENT Institute. Shenzhen, China
| | - Pingchang Yang
- Guangdong Provincial Regional Disease Key Laboratory, Shenzhen, China
- Institute of Allergy & Immunology of Shenzhen University, State Key Laboratory of Respiratory Diseases Allergy Division at Shenzhen University, Shenzhen, China
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Du B, Xiao X, Wang H, Li W, Xia Z, Yang P, Huang SK, Yuan R, Liu J, Han M, Zou Y, Zhu J, He D, Lyu J, Jin X, Xu X, Wang J, Yang H, Xiao L, Liu X, Kristiansen K. Evaluation of the Impact of BaP Exposure on the Gut Microbiota and Allergic Responses in an OVA-Sensitized Mouse Model. Environ Health Perspect 2023; 131:67004. [PMID: 37267060 DOI: 10.1289/ehp11874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
BACKGROUND Exposure to environmental pollutants, including benzo[a]pyrene (BaP), has been implicated in allergic diseases and intestinal microbiota homeostasis, but the environment-microbiota-immunity triangular relationship and to what extent BaP-induced remodeling of the gut microbiota contributes to intestinal allergic inflammation remain to be established. OBJECTIVES We investigated the impact of BaP on intestinal allergic inflammation and examined the relationship between this effect and gut microbiota dysbiosis. We explored the potential ability of intestinal bacteria to degrade BaP and alleviate cytotoxicity as a detoxification strategy to counteract the effects of BaP exposure. METHODS We combined microbiome shotgun metagenomics with animal histological and intestinal allergic inflammatory responses to assess the effects of BaP (50μg/mouse per day) in a 23-d toxicity test in antigen-induced allergic female mice. In addition, genome annotation, quantitative analysis of BaP, and in vitro cytotoxicity-tests using CaCo-2 cells were conducted to infer the role of intestinal bacteria in BaP detoxification. RESULTS BaP exposure impacted the taxonomic composition and the functional potential of the gut microbiota and aggravated antigen-induced intestinal allergic inflammatory responses. The level of inflammatory cytokines correlated with the abundance of specific bacterial taxa, including Lachnospiraceae bacterium 28-4 and Alistipes inops. We identified 614 bacteria harboring genes implicated in the degradation of BaP, and 4 of these bacterial strains were shown to significantly reduce the cytotoxicity of BaP to CaCo-2 cells in vitro. DISCUSSION Using allergic female mice as a model, we investigated the relationship between BaP, microbiota, and host immune reactions, highlighting the role of gut bacteria in BaP-aggravated allergic reactions. Our findings offer novel insight toward establishing the causal relationship between BaP exposure and the occurrence of allergic disorders. Identifying gut bacteria that degrade BaP may provide new strategies for ameliorating BaP cytotoxicity. https://doi.org/10.1289/EHP11874.
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Affiliation(s)
- Beibei Du
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
- BGI-Shenzhen, Shenzhen, China
| | - Xiaojun Xiao
- State Key Laboratory of Respiratory Disease for Allergy at Shenzhen University, Shenzhen Key Laboratory of Allergy and Immunology, Shenzhen University School of Medicine, Shenzhen, China
| | - Huailing Wang
- State Key Laboratory of Respiratory Disease for Allergy at Shenzhen University, Shenzhen Key Laboratory of Allergy and Immunology, Shenzhen University School of Medicine, Shenzhen, China
| | - Wenxi Li
- BGI-Shenzhen, Shenzhen, China
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, China
| | | | - Pingchang Yang
- State Key Laboratory of Respiratory Disease for Allergy at Shenzhen University, Shenzhen Key Laboratory of Allergy and Immunology, Shenzhen University School of Medicine, Shenzhen, China
- National Institute of Environmental Health Sciences, National Health Research Institutes, Taiwan, China
| | - Shau-Ku Huang
- National Institute of Environmental Health Sciences, National Health Research Institutes, Taiwan, China
- Department of Allergy, Third Affiliated Hospital of Shenzhen University, Shenzhen, China
- Department of Medicine, Division of Allergy and Clinical Immunology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Ruyi Yuan
- State Key Laboratory of Respiratory Disease for Allergy at Shenzhen University, Shenzhen Key Laboratory of Allergy and Immunology, Shenzhen University School of Medicine, Shenzhen, China
| | - Jie Liu
- State Key Laboratory of Respiratory Disease for Allergy at Shenzhen University, Shenzhen Key Laboratory of Allergy and Immunology, Shenzhen University School of Medicine, Shenzhen, China
| | - Mo Han
- BGI-Shenzhen, Shenzhen, China
- Laboratory of Genomics and Molecular Biomedicine, Department of Biology, University of Copenhagen, Copenhagen, Denmark
- Shenzhen Engineering Laboratory of Detection and Intervention of Human Intestinal Microbiome, Shenzhen, China
| | - Yuanqiang Zou
- BGI-Shenzhen, Shenzhen, China
- Laboratory of Genomics and Molecular Biomedicine, Department of Biology, University of Copenhagen, Copenhagen, Denmark
- Shenzhen Engineering Laboratory of Detection and Intervention of Human Intestinal Microbiome, Shenzhen, China
- Qingdao-Europe Advanced Institute for Life Sciences, Qingdao, China
| | | | | | | | - Xin Jin
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
- BGI-Shenzhen, Shenzhen, China
| | - Xun Xu
- BGI-Shenzhen, Shenzhen, China
| | | | - Huanming Yang
- BGI-Shenzhen, Shenzhen, China
- Qingdao-Europe Advanced Institute for Life Sciences, Qingdao, China
| | - Liang Xiao
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
- BGI-Shenzhen, Shenzhen, China
- Shenzhen Engineering Laboratory of Detection and Intervention of Human Intestinal Microbiome, Shenzhen, China
- Qingdao-Europe Advanced Institute for Life Sciences, Qingdao, China
| | - Xiaoyu Liu
- State Key Laboratory of Respiratory Disease for Allergy at Shenzhen University, Shenzhen Key Laboratory of Allergy and Immunology, Shenzhen University School of Medicine, Shenzhen, China
| | - Karsten Kristiansen
- BGI-Shenzhen, Shenzhen, China
- Laboratory of Genomics and Molecular Biomedicine, Department of Biology, University of Copenhagen, Copenhagen, Denmark
- Qingdao-Europe Advanced Institute for Life Sciences, Qingdao, China
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Luo L, Jiao Y, Yang P, Li Y, Huang WY, Ke XY, Zou DH, Jing HM. [Efficacy and prognostic factors of allogeneic hematopoietic stem cell transplantation treatment for T lymphoblastic leukemia/lymphoma]. Zhonghua Xue Ye Xue Za Zhi 2023; 44:388-394. [PMID: 37550188 PMCID: PMC10440623 DOI: 10.3760/cma.j.issn.0253-2727.2023.05.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Indexed: 08/09/2023]
Abstract
Objective: To analyze the efficacy and prognostic factors of allogeneic hematopoietic stem cell transplantation (allo-HSCT) for treating T lymphoblastic leukemia/lymphoma (T-ALL/LBL) . Methods: This study retrospectively evaluated 119 adolescent and adult patients with T-ALL/LBL from January 2006 to January 2020 at Peking University Third Hospital and Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences. Patients were divided into chemotherapy-only, chemotherapy followed by allo-HSCT, and chemotherapy followed by autologous hematopoietic stem cell transplantation (auto-HSCT) groups according to the consolidation regimen, and the 5-year overall survival (OS) and progression-free survival (PFS) rates of each group were compared. Results: Among 113 patients with effective follow-up, 96 (84.9%) patients achieved overall response (ORR), with 79 (69.9%) having complete response (CR) and 17 (15.0%) having partial response (PR), until July 2022. The analysis of the 96 ORR population revealed that patients without transplantation demonstrated poorer outcomes compared with the allo-HSCT group (5-year OS: 11.4% vs 55.6%, P=0.001; 5-year PFS: 8.9% vs 54.2%, P<0.001). No difference was found in 5-year OS and 5-year PFS between the allo-HSCT and auto-HSCT groups (P=0.271, P=0.197). The same results were achieved in the CR population. Allo-HSCT got better 5-year OS (37.5% vs 0) for the 17 PR cases (P=0.064). Different donor sources did not affect 5-year OS, with sibling of 61.1% vs hap-haploidentical of 63.6% vs unrelated donor of 50.0% (P>0.05). No significant difference was found in the treatment response in the early T-cell precursor acute lymphoblastic leukemia/lymphoma (ETP) and non-ETP populations. The ETP group demonstrated lower 5-year OS compared with the non-ETP group in the chemotherapy alone group (0 vs 12.6%, P=0.045), whereas no significant difference was found between the ETP and non-ETP groups in the allo-HSCT group (75.0% vs 62.9%, P=0.852). Multivariate analysis revealed that high serum lactate dehydrogenase level, without transplantation, and no CR after chemotherapy induction were independently associated with inferior outcomes (P<0.05) . Conclusion: Allo-HSCT could be an effective consolidation therapy for adult and adolescent patients with T-ALL/LBL. Different donor sources did not affect survival. Allo-HSCT may overcome the adverse influence of ETP-ALL/LBL on OS.
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Affiliation(s)
- L Luo
- Department of Hematology, Peking University Third Hospital, Beijing 100191, China
| | - Y Jiao
- Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences, National Clinical Research Center for Blood Diseases, State Key Laboratory of Experimental Hematology, Tianjin 300020, China
| | - P Yang
- Department of Hematology, Peking University Third Hospital, Beijing 100191, China
| | - Y Li
- Department of Hematology, Peking University Third Hospital, Beijing 100191, China
| | - W Y Huang
- Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences, National Clinical Research Center for Blood Diseases, State Key Laboratory of Experimental Hematology, Tianjin 300020, China
| | - X Y Ke
- Department of Hematology, Peking University Third Hospital, Beijing 100191, China
| | - D H Zou
- Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences, National Clinical Research Center for Blood Diseases, State Key Laboratory of Experimental Hematology, Tianjin 300020, China
| | - H M Jing
- Department of Hematology, Peking University Third Hospital, Beijing 100191, China
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Mo L, Liu Y, Xu X, Wang X, Zhang S, Hu S, Wu Y, Tang Z, Huang Q, Li J, Sun X, Yang P. Endoplasmic reticulum stress impairs the immune regulation property of macrophages in asthmatic patients. Clin Immunol 2023; 252:109639. [PMID: 37172666 DOI: 10.1016/j.clim.2023.109639] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 05/01/2023] [Accepted: 05/09/2023] [Indexed: 05/15/2023]
Abstract
The current study aims to characterize the counteraction of M2 cells in response to Endoplasmic reticulum (ER) stress. ER stress was detected in bronchoalveolar lavage fluids (BALF) Mϕs, which was at unresolved state in asthma patients. A positive correlation was detected between ER stress in Mϕs and lung functions/allergic mediators/Th2 cytokines in BALF or specific IgE in the serum. Levels of immune regulatory mediator in the BALF were negatively correlated to ER stress in BALF Mϕs. The ER stress state influenced the immune regulatory property of BALF Mϕ. Exposure to environmental pollutant, 3-metheyl-4-nitrophenol, exacerbated ER stress in Mϕ, which affected the Mϕ phenotyping. Exacerbation of ER stress suppressed the expression of IL-10 and programmed cell death protein-1 (PD-1) in Mϕs by increasing the expression of the ring finger protein 20 (Rnf20). Conditional inhibition of Rnf20 in Mϕs attenuated experimental airway allergy.
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Affiliation(s)
- Lihua Mo
- Department of General Practice Medicine and Respirology, Third Affiliated Hospital of Shenzhen University, Shenzhen, China; Guangdong Provincial Regional Disease Key Laboratory, Shenzhen, China; Institute of Allergy & Immunology of Shenzhen University, State Key Laboratory of Respiratory Diseases Allergy Division at Shenzhen University, Shenzhen, China
| | - Yu Liu
- Department of General Practice Medicine and Respirology, Third Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Xuejie Xu
- Guangdong Provincial Regional Disease Key Laboratory, Shenzhen, China; Institute of Allergy & Immunology of Shenzhen University, State Key Laboratory of Respiratory Diseases Allergy Division at Shenzhen University, Shenzhen, China
| | - Xinxin Wang
- Guangdong Provincial Regional Disease Key Laboratory, Shenzhen, China; Institute of Allergy & Immunology of Shenzhen University, State Key Laboratory of Respiratory Diseases Allergy Division at Shenzhen University, Shenzhen, China
| | - Shuang Zhang
- Guangdong Provincial Regional Disease Key Laboratory, Shenzhen, China; Institute of Allergy & Immunology of Shenzhen University, State Key Laboratory of Respiratory Diseases Allergy Division at Shenzhen University, Shenzhen, China
| | - Suqin Hu
- Department of General Practice Medicine and Respirology, Third Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Yongjin Wu
- Department of Allergy, Longgang ENT Hospital, Shenzhen, China
| | - Zhiyuan Tang
- Department of Allergy, Longgang ENT Hospital, Shenzhen, China
| | - Qinmiao Huang
- Department of General Practice Medicine and Respirology, Third Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Jing Li
- Department of Allergy, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.
| | - Xizhuo Sun
- Department of General Practice Medicine and Respirology, Third Affiliated Hospital of Shenzhen University, Shenzhen, China.
| | - Pingchang Yang
- Guangdong Provincial Regional Disease Key Laboratory, Shenzhen, China; Institute of Allergy & Immunology of Shenzhen University, State Key Laboratory of Respiratory Diseases Allergy Division at Shenzhen University, Shenzhen, China.
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Yin Y, Wu SS, Yang P, Liu XQ, Gao Y, Song LL, Sui XL, Yu GH. [Clinicopathological analysis of three cases EB virus-positive mucocutaneous ulcer]. Zhonghua Bing Li Xue Za Zhi 2023; 52:501-503. [PMID: 37106295 DOI: 10.3760/cma.j.cn112151-20221209-01036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Affiliation(s)
- Y Yin
- Department of Pathology, Yantai Yuhuangding Hospital Affiliated to Qingdao University, Yantai 264000, China
| | - S S Wu
- Department of Pathology, Yantai Yuhuangding Hospital Affiliated to Qingdao University, Yantai 264000, China
| | - P Yang
- Department of Pathology, Yantai Yuhuangding Hospital Affiliated to Qingdao University, Yantai 264000, China
| | - X Q Liu
- Department of Hematology, Yantai Yuhuangding Hospital Affiliated to Qingdao University, Yantai 264000, China
| | - Y Gao
- Department of Pathology, Yantai Yuhuangding Hospital Affiliated to Qingdao University, Yantai 264000, China
| | - L L Song
- The Second Medical College of Binzhou Medical University, Yantai 264003, China
| | - X L Sui
- Department of Pathology, Yantai Yuhuangding Hospital Affiliated to Qingdao University, Yantai 264000, China
| | - G H Yu
- Department of Pathology, Yantai Yuhuangding Hospital Affiliated to Qingdao University, Yantai 264000, China
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Yang G, Li J, Liu Y, Wu G, Mo L, Xu Z, Liao Y, Huang Q, Yang P. Targeting the RhoA-GEF-H1 pathway of mast cells attenuates experimental airway allergy. Arch Biochem Biophys 2023; 741:109597. [PMID: 37054768 DOI: 10.1016/j.abb.2023.109597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 04/02/2023] [Accepted: 04/04/2023] [Indexed: 04/15/2023]
Abstract
Mast cells are the major effector cells in allergic diseases. RhoA and its downstream pathway is associated with the pathogenesis of airway allergy. The objective of this study is to test a hypothesis that modulating the RhoA-GEF-H1 axis in mast cells can attenuate airway allergy. An airway allergic disorder (AAD) mouse model was employed. Mast cells were isolated from AAD mouse airway tissues to be analyzed by RNA sequencing. We observed that mast cells isolated from the respiratory tract of AAD mice were resistant to apoptosis. Mast cell mediator levels in nasal lavage fluid were correlated with apoptosis resistance in AAD mice. Activation of RhoA in AAD mast cells was related to resistance to apoptosis. Mast cells isolated from the airway tissues in AAD mouse exhibited strong RhoA-GEF-H1 expression. The RhoA-GEF-H1 axis was associated with the lower FasL expression in AAD mast cells. Activation of the RhoA-GEF-H1 axis promoted the production of mediators in mast cells. Inhibition of GEF-H1 facilitated the SIT-induced mast cell apoptosis and enhanced the therapeutic efficacy of AAD. In conclusion, RhoA-GEF-H1 activities are associated with resistance to apoptosis in mast cells isolated from sites of allergic lesions. The state of apoptosis resistance in mast cells is associated with the state of AAD disease. Inhibition of GEF-H1 restores the sensitivity of mast cells to apoptosis inducers, and alleviates experimental AAD in mice.
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Affiliation(s)
- Gui Yang
- Department of Otolaryngology and Allergy, Longgang Central Hospital, Shenzhen, China
| | - Jianxiang Li
- Department of General Practice Medicine, Third Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Yu Liu
- Department of Otolaryngology, Jinjiang Municipal Hospital, Jinjiang, China
| | - Gaohui Wu
- Department of Otolaryngology, Jinjiang Municipal Hospital, Jinjiang, China
| | - Lihua Mo
- Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Shenzhen, China; Institute of Allergy & Immunology of Shenzhen University, State Key Laboratory of Respiratory Disease Allergy Division at Shenzhen University, Shenzhen, China
| | - Ziyi Xu
- Vanke Meisha Academy, Shenzhen, China
| | - Yun Liao
- Department of Otolaryngology and Allergy, Longgang Central Hospital, Shenzhen, China
| | - Qinmiao Huang
- Department of General Practice Medicine, Third Affiliated Hospital of Shenzhen University, Shenzhen, China.
| | - Pingchang Yang
- Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Shenzhen, China; Institute of Allergy & Immunology of Shenzhen University, State Key Laboratory of Respiratory Disease Allergy Division at Shenzhen University, Shenzhen, China.
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Wan XC, Zhang H, Shen Y, Zhou SY, Yang P, Zhou XJ, Gu H, Le QH, Xu JJ, Zhou XT, Hong JX. [A preliminary study on the tear matrix metalloproteinase 9 point-of-care assay using a domestic kit]. Zhonghua Yan Ke Za Zhi 2023; 59:272-278. [PMID: 37012590 DOI: 10.3760/cma.j.cn112142-20220813-00400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
Abstract
Objective: To compare the point-of-care assays for tear matrix metalloproteinase 9 (MMP-9) using domestic and InflammaDry kits, and to evaluate the feasibility of diagnosing dry eye with the domestic kit. Methods: It was a cross-sectional study. Thirty dry eye patients and 30 age-and sex-matched normal volunteers were continuously enrolled in this cross-sectional study from June 2022 to July 2022. Both domestic and InflammaDry kits were used to detect the tear MMP-9 levels. The positive rates were recorded for qualitative analysis, and the gray ratios of bands (the gray value of detection bands to that of control bands) were collected for quantitative analysis. The correlations of MMP-9 levels with age, ocular surface disease index, fluorescence tear break-up time, tear meniscus height, Schirmer's Ⅰ test score, corneal fluorescein staining score, and meibomian gland dropout were analyzed. The Mann-Whitney U test, paired Chi-square test, Kappa test, and Spearman's correlation coefficient were used for statistical analysis. Results: There were 14 males and 16 females (30 eyes) in the control group, and their age was (39.37±19.55) years. In the dry eye group, 11 males and 19 females (30 eyes), aged (46.87±17.85) years, had moderate to severe dry eye. The positive rates of MMP-9 in tear fluid were significantly different between dry eye patients (InflammaDry: 86.67%; domestic kit: 70.00%) and controls (InflammaDry: 16.67%, P<0.001; domestic kit: 6.67%, P<0.001). Although the sensitivity of the domestic kit was lower than that of the InflammaDry kit (70.0% vs. 86.7%, P=0.001), the specificity was higher (93.3% vs. 83.3%, P=0.001). In dry eye patients, the positive coincidence rate was 80.7% (21/26), the negative coincidence rate was 100% (4/4), and the total coincidence rate was 83.3% (25/30), with no significant difference between the two kits (McNemar test: χ2=3.20, P>0.05), and the results of both kits were consistent (Kappa=0.53, P=0.001). The Spearman's correlation coefficient showed the gray ratios using both kits were positively correlated with the corneal fluorescein staining score (InflammaDry: ρ=0.48, P<0.05; domestic kit: ρ=0.52, P=0.003). Conclusion: The performances of the domestic and InflammaDry kits are consistent in the point-of-care assay for tear MMP-9, and the domestic kit has lower sensitivity but higher specificity.
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Affiliation(s)
- X C Wan
- Department of Ophthalmology, Eye & ENT Hospital of Fudan University, NHC Key Laboratory of Myopia, Key Laboratory of Myopia, Chinese Academy of Medical Science, Shanghai 200031, China
| | - H Zhang
- Department of Ophthalmology, The Affiliated Hospital of Guizhou Medical University, Guiyang 550031, China
| | - Y Shen
- Department of Ophthalmology, Eye & ENT Hospital of Fudan University, NHC Key Laboratory of Myopia, Key Laboratory of Myopia, Chinese Academy of Medical Science, Shanghai 200031, China
| | - S Y Zhou
- Department of Ophthalmology, Eye & ENT Hospital of Fudan University, NHC Key Laboratory of Myopia, Key Laboratory of Myopia, Chinese Academy of Medical Science, Shanghai 200031, China
| | - P Yang
- Department of Ophthalmology, Eye & ENT Hospital of Fudan University, NHC Key Laboratory of Myopia, Key Laboratory of Myopia, Chinese Academy of Medical Science, Shanghai 200031, China
| | - X J Zhou
- Department of Ophthalmology, Eye & ENT Hospital of Fudan University, NHC Key Laboratory of Myopia, Key Laboratory of Myopia, Chinese Academy of Medical Science, Shanghai 200031, China
| | - H Gu
- Department of Ophthalmology, The Affiliated Hospital of Guizhou Medical University, Guiyang 550031, China
| | - Q H Le
- Department of Ophthalmology, Eye & ENT Hospital of Fudan University, NHC Key Laboratory of Myopia, Key Laboratory of Myopia, Chinese Academy of Medical Science, Shanghai 200031, China
| | - J J Xu
- Department of Ophthalmology, Eye & ENT Hospital of Fudan University, NHC Key Laboratory of Myopia, Key Laboratory of Myopia, Chinese Academy of Medical Science, Shanghai 200031, China
| | - X T Zhou
- Department of Ophthalmology, Eye & ENT Hospital of Fudan University, NHC Key Laboratory of Myopia, Key Laboratory of Myopia, Chinese Academy of Medical Science, Shanghai 200031, China
| | - J X Hong
- Department of Ophthalmology, Eye & ENT Hospital of Fudan University, NHC Key Laboratory of Myopia, Key Laboratory of Myopia, Chinese Academy of Medical Science, Shanghai 200031, China
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Zhou T, Liao W, Wang X, Wang Y, Yang P, Zuo L, Zhang X. Low temperature reduces occludin expression in bronchial epithelial cells: Implications in cold-induced asthma. Mol Immunol 2023; 157:176-185. [PMID: 37044043 DOI: 10.1016/j.molimm.2023.03.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 02/25/2023] [Accepted: 03/24/2023] [Indexed: 04/14/2023]
Abstract
BACKGROUND Cold exposure is a common factor to trigger asthma attacks. However, the underlying mechanism has not been thoroughly elucidated. We aimed to investigate the hypothesis that low temperature reduces occludin expression and compromises epithelial barrier function in airways, which in turn, results in asthma exacerbation. METHODS We examined occludin expression in human bronchial epithelial cell line (Beas-2B) cells exposed to either 29 °C or 37 °C. The following drugs were administered prior to cold treatment: MG132 (a proteasome inhibitor), cycloheximide (a protein synthesis inhibitor), HC-067047 plus GSK2193874 (transient receptor potential vanilloid 4 [TRPV4] antagonists), or C4-ceramide (a glucocorticoid-inducible kinase [SGK1] activator). siNedd4-2 was transfected into Beas-2B cells to investigate the role that Nedd4-2 plays in mediating occludin instability induced by cold. In animal experiments, we treated ovalbumin (OVA)-induced asthmatic mice with a thermoneutral temperature of 30 °C or cold exposure (10 °C, 6 h/day) for 2 weeks. GSK2193874 or C4-ceramide was administered during the cold treatment. Occludin expression of the lung, pulmonary permeability, serum IgE levels, and lung inflammation were assessed. RESULTS Low temperature treatment (29 °C) significantly reduced the expression of occludin in Beas-2B cells from 1 to 9 h, which was rescued upon treatment with MG132, HC-067047 plus GSK2193874, C4-ceramide, or Nedd4-2 knockdown. Low temperatures affected occludin stability through SGK1/Nedd4-2-dependent proteolysis. In vivo mice data revealed that cold exposure compromised the airway epithelial barrier function, decreased occludin expression, and exacerbated lung inflammation, which was attenuated by the GSK2193874 or C4-ceramide injection. CONCLUSION We identified a potential mechanism underlying cold-induced asthma exacerbation involving Nedd4-2-mediated occludin proteolysis and airway epithelial barrier disruption.
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Affiliation(s)
- Tingyang Zhou
- State Key Laboratory of Respiratory Disease, Department of Otolaryngology, Head & Neck Surgery, Laboratory of ENT-HNS Disease, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Wenjing Liao
- State Key Laboratory of Respiratory Disease, Department of Otolaryngology, Head & Neck Surgery, Laboratory of ENT-HNS Disease, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Xiaofen Wang
- State Key Laboratory of Respiratory Disease, Department of Otolaryngology, Head & Neck Surgery, Laboratory of ENT-HNS Disease, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Yiyan Wang
- State Key Laboratory of Respiratory Disease, Department of Otolaryngology, Head & Neck Surgery, Laboratory of ENT-HNS Disease, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Pingchang Yang
- State Key Laboratory of Respiratory Disease, Department of Otolaryngology, Head & Neck Surgery, Laboratory of ENT-HNS Disease, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China; Department of Allergy and Clinical Immunology, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China; Research Center of Allergy & Immunology, Shenzhen University School of Medicine, Shenzhen, China
| | - Li Zuo
- School of Medicine, The University of Texas and UT Health Rio Grande Valley, TX 78539, USA
| | - Xiaowen Zhang
- State Key Laboratory of Respiratory Disease, Department of Otolaryngology, Head & Neck Surgery, Laboratory of ENT-HNS Disease, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China; Department of Cancer, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China; Innovation and Transformation Platform of Upper Airway Disease in Guangdong Province, China; Department of Allergy and Clinical Immunology, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China.
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Feng B, Xu L, Song S, Liu H, Li Y, Hu S, Shu Q, Liu J, Liu Z, Yu H, Yang P. ER stress modulates the immune regulatory ability in gut M2 cells of patients with ulcerative colitis. iScience 2023; 26:106498. [PMID: 37091242 PMCID: PMC10113856 DOI: 10.1016/j.isci.2023.106498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 02/28/2023] [Accepted: 03/22/2023] [Indexed: 04/07/2023] Open
Abstract
This study aims to characterize the impaired immune regulatory function of Mφ obtained from UC patient colon lavage fluid (CLF). Mφs were the largest proportion (21.3 4.0%) of the CLF-derived cellular components. Less abundant and weaker immune suppressive function were observed in M2 Mφs (M2 cells) of the ulcerative colitis (UC) group. High levels of endoplasmic reticulum (ER) stress associated molecules were detected in UC M2 cells. The spliced X box binding protein-1 (XBP1) gene was negatively correlated with programmed death ligand-1 (PD-L1) in UC M2 cells. XBP1 promoted the expression of ring-finger protein 20 (Rnf20) in M2 cells. Rnf20 reduced PD-L1 abundance in UC M2 cells and impaired the immune suppressive ability. Inhibition of Rnf20 restored the immune regulating capacity of M2 cells and suppressed experimental colitis.
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Affiliation(s)
- Baisui Feng
- Department of Gastroenterology, Second Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Lingzhi Xu
- Department of Immunology, School of Basic Medical Sciences, Weifang Medical University, Weifang, China
| | - Shuo Song
- Guangdong Provincial Regional Disease Key Laboratory, Shenzhen, China
- Institute of Allergy & Immunology of Shenzhen University, State Key Laboratory of Respiratory Diseases Division at Shenzhen University, Shenzhen, China
| | - Huazhen Liu
- Guangdong Provincial Regional Disease Key Laboratory, Shenzhen, China
- Institute of Allergy & Immunology of Shenzhen University, State Key Laboratory of Respiratory Diseases Division at Shenzhen University, Shenzhen, China
| | - Yan Li
- Department of Gastroenterology, Second Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Suqin Hu
- Guangdong Provincial Regional Disease Key Laboratory, Shenzhen, China
- Institute of Allergy & Immunology of Shenzhen University, State Key Laboratory of Respiratory Diseases Division at Shenzhen University, Shenzhen, China
| | - Qing Shu
- Department of Gastroenterology, Shenzhen Second People’s Hospital, Shenzhen, China
| | - Jiangqi Liu
- Department of Allergy, Longgang ENT Hospital, Shenzhen, China
| | - Zhiqiang Liu
- Department of Allergy, Longgang ENT Hospital, Shenzhen, China
| | - Haiqiong Yu
- Department of Pulmonary and Critical Care Medicine, The Eighth Affiliated Hospital of Sun Yat-Sen University, Shenzhen518033, China
- Corresponding author
| | - Pingchang Yang
- Guangdong Provincial Regional Disease Key Laboratory, Shenzhen, China
- Institute of Allergy & Immunology of Shenzhen University, State Key Laboratory of Respiratory Diseases Division at Shenzhen University, Shenzhen, China
- Corresponding author
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Jiang XL, Qiu Y, Zhang YP, Yang P, Huang B, Lin M, Ye Y, Gao F, Li D, Qin Y, Li Y, Li ZJ. [Latent period and incubation period with associated factors of COVID-19 caused by Omicron variant]. Zhonghua Yu Fang Yi Xue Za Zhi 2023; 57:659-666. [PMID: 36977565 DOI: 10.3760/cma.j.cn112150-20220926-00925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
Abstract
Objective: To estimate the latent period and incubation period of Omicron variant infections and analyze associated factors. Methods: From January 1 to June 30, 2022, 467 infected persons and 335 confirmed cases in five local Omicron variant outbreaks in China were selected as the study subjects. The latent period and incubation period were estimated by using log-normal distribution and gamma distribution models, and the associated factors were analyzed by using the accelerated failure time model (AFT). Results: The median (Q1, Q3) age of 467 Omicron infections including 253 males (54.18%) was 26 (20, 39) years old. There were 132 asymptomatic infections (28.27%) and 335 (71.73%) symptomatic infections. The mean latent period of 467 Omicron infections was 2.65 (95%CI: 2.53-2.78) days, and 98% of infections were positive for nucleic acid detection within 6.37 (95%CI: 5.86-6.82) days after infection. The mean incubation period of 335 symptomatic infections was 3.40 (95%CI: 3.25-3.57) days, and 97% of them developed clinical symptoms within 6.80 (95%CI: 6.34-7.22) days after infection. The results of the AFT model analysis showed that compared with the group aged 18~49 years old, the latent period [exp(β)=1.36 (95%CI: 1.16-1.60), P<0.001] and incubation period [exp(β)=1.24 (95%CI: 1.07-1.45), P=0.006] of infections aged 0~17 year old were also prolonged. The latent period [exp(β)=1.38 (95%CI: 1.17-1.63), P<0.001] and the incubation period [exp(β)=1.26 (95%CI: 1.06-1.48), P=0.007] of infections aged 50 years old and above were also prolonged. Conclusion: The latent period and incubation period of most Omicron infections are within 7 days, and age may be the influencing factor of the latent period and incubation period.
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Affiliation(s)
- X L Jiang
- Division of Infectious Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Y Qiu
- Haidian District Center for Disease Control and Prevention,Beijing 100094, China
| | - Y P Zhang
- Division of Infectious Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - P Yang
- Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - B Huang
- Jilin Provincial Center for Disease Control and Prevention, Changchun 130062, China
| | - M Lin
- Guangxi Center for Disease Control and Prevention, Nanning 530028, China
| | - Y Ye
- Institute for Infectious Disease Prevention and Control,Henan Provincial Center for Disease Control and Prevention, Zhengzhou 450016, China
| | - F Gao
- Division of Infectious Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - D Li
- Division of Infectious Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Y Qin
- Division of Infectious Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Y Li
- Division of Infectious Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Z J Li
- Chinese Center for Disease Control and Prevention, Beijing 102206, China
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Yang P, Wang Y, Gao Q, Liu Y, Wang Y, Guo Y, Liu C, Liu G. [Chemical reprogramming of human embryonic fibroblasts into neural progenitor cells in vitro]. Nan Fang Yi Ke Da Xue Xue Bao 2023; 43:360-367. [PMID: 37087579 PMCID: PMC10122728 DOI: 10.12122/j.issn.1673-4254.2023.03.04] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 04/24/2023]
Abstract
OBJECTIVE To establish a protocol for reprogramming human embryonic fibroblasts (HEFs) into chemically induced neural progenitor cells (ciNPCs). METHODS In the two-staged reprogramming of HEFs, the intermediate compact cell colonies were first chemically induced in KSR medium containing small-molecule compounds (VCR) for 15 days in normoxia, followed by the lineage-specific induction stage, in which the compact cell colonies were digested with 0.25% trypsin and the cells were cultured in low adhesion plates. After formation of a large number of free-floating neurospheres 2 days later, the ciNPCs were labeled with CM-DiI and transplanted into rat models of Parkinson's disease (PD)to observe the survival, migration and differentiation of the cells in PD brain. RESULTS After induction with VCR for 10 days under normoxic condition, compact cell colonies occurred in HEF cultures (approximately 40 colonies in each well containing 1×105 HEFs), and most of the colonies expressed high levels of alkaline phosphatase. A large number of free-floating neurospheres formed 2 days after passage and were defined as P1 ciNPCs. These ciNPCs exhibited typical neurosphere-like structures and expressed NPC-specific markers (nestin, Sox2, and Pax6). Under neuronal or glial differentiation condition, the ciNPCs expressed the neuron-specific marker Tuj1 and the astrocyte-specific marker GFAP. These ciNPCs could differentiate into Tuj1+, GFAP+, TH+ and GABA+ cells 4 weeks after transplantation into the brain of PD rats. CONCLUSION HEFs can be directly reprogrammed into ciNPCs using smallmolecule compounds without the need of introducing exogenous genes. This success may provide a solution to the shortage of donor materials for neuroscience research and treatment of neurodegenerative diseases.
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Affiliation(s)
- P Yang
- Bengbu Medical College School of Life Sciences, Bengbu 233000, China
| | - Y Wang
- Bengbu Medical College School of Life Sciences, Bengbu 233000, China
| | - Q Gao
- Bengbu Medical College School of Life Sciences, Bengbu 233000, China
| | - Y Liu
- Bengbu Medical College School of Life Sciences, Bengbu 233000, China
| | - Y Wang
- Bengbu Medical College School of Life Sciences, Bengbu 233000, China
| | - Y Guo
- Bengbu Medical College School of Laboratory Medicine, Bengbu 233000, China
| | - C Liu
- Bengbu Medical College School of Life Sciences, Bengbu 233000, China
| | - G Liu
- Bengbu Medical College School of Life Sciences, Bengbu 233000, China
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Wu SS, Sun Y, Dou XF, Ren ZY, Zhang JJ, Jia L, Yang P, Pang XH. [Analysis on infection sources and transmission chains of three outbreaks caused by 2019-nCoV Omicron variant in Beijing, China]. Zhonghua Liu Xing Bing Xue Za Zhi 2023; 44:373-378. [PMID: 36942330 DOI: 10.3760/cma.j.cn112338-20221112-00966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 03/23/2023]
Abstract
Objective: To investigate the infection sources and the transmission chains of three outbreaks caused by 2019-nCoV Omicron variant possibly spread through cross-border logistics in Beijing. Methods: Epidemiological investigation and big data were used to identify the exposure points of the cases. Close contacts were traced from the exposure points, and the cases' and environmental samples were collected for nucleic acid tests. Positive samples were analyzed by gene sequencing. Results: The Omicron variant causing 3 outbreaks in Beijing from January to April, 2022 belonged to BA.1, BA.1.1 and BA.2. The outbreaks lasted for 8, 12 and 8 days respectively, and 6, 42 and 32 cases infected with 2019-nCoV were reported respectively. International mail might be the infection source for 1 outbreak, and imported clothes might be the infection sources for another 2 outbreaks. The interval between the shipment start time of the imported goods and the infection time of the index case was 3-4 days. The mean incubation period (Q1, Q3) was 3 (2,4) days and the mean serial interval (Q1, Q3) was 3 (2,4)days. Conclusions: The 3 outbreaks highlighted the risk of infection by Omicron variant from international logistics-related imported goods at normal temperature. Omicron variant has stronger transmissibility, indicating that rapid epidemiological investigation and strict management are needed.
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Affiliation(s)
- S S Wu
- Institute for Infectious Disease and Endemic Disease Control, Beijing Municipal Center for Disease Prevention and Control, Beijing 100013, China
| | - Y Sun
- Institute for Infectious Disease and Endemic Disease Control, Beijing Municipal Center for Disease Prevention and Control, Beijing 100013, China
| | - X F Dou
- Institute for Infectious Disease and Endemic Disease Control, Beijing Municipal Center for Disease Prevention and Control, Beijing 100013, China
| | - Z Y Ren
- Institute for Infectious Disease and Endemic Disease Control, Beijing Municipal Center for Disease Prevention and Control, Beijing 100013, China
| | - J J Zhang
- Institute for Infectious Disease and Endemic Disease Control, Beijing Municipal Center for Disease Prevention and Control, Beijing 100013, China
| | - L Jia
- Institute for Infectious Disease and Endemic Disease Control, Beijing Municipal Center for Disease Prevention and Control, Beijing 100013, China
| | - P Yang
- Central Office, Beijing Municipal Center for Disease Prevention and Control, Beijing 100013, China
| | - X H Pang
- Central Office, Beijing Municipal Center for Disease Prevention and Control, Beijing 100013, China
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Zhou C, Li M, Liu Y, Wang X, Zhang S, Guan L, Hong J, Zhou W, Wu G, Diao W, Huang Q, Yang P. Signals from the TAFA4-PTEN-PU.1 axis alleviate nasal allergy by modulating the expression of FcεRI in mast cells. Clin Exp Immunol 2023; 211:15-22. [PMID: 36368013 PMCID: PMC9993457 DOI: 10.1093/cei/uxac097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 09/30/2022] [Accepted: 10/24/2022] [Indexed: 11/13/2022] Open
Abstract
The high-affinity IgE receptor, FcεRI, plays a key role in the antigen-induced mast cell activation. Regulations for FcεRI are not yet well understood. TAFA4 is a molecule derived from neuron tissues, and has immune regulation functions. This study aims to clarify the role of TAFA4 in the regulation of FcεRI expression in mast cells. Nasal secretions were collected from patients with allergic rhinitis (AR) and healthy control (HC) subjects. TAFA4 levels of nasal secretions were evaluated by ELISA. A mouse model AR was developed using ovalbumin as the specific antigen. Negative correlation between TAFA4 and tryptase levels in nasal secretions was observed. TAFA4 could suppress the antigen-related mast cell activation. TAFA4 modulated the transcription of Fcer1g (FcεRI γ gene) in mast cells. Signals from the TAFA4-PTEN-PU.1 axis restricted FcεRI expression in mast cells. Administration of TAFA4 attenuated experimental AR. TAFA4 suppressed the expression of FcεRI in mast cells of airway tissues. TAFA4 can down regulate the expression of FcεRI in mast cells to suppress experimental AR. The data suggest that TAFA4 has translation potential to be developed as an anti-allergy therapy.
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Affiliation(s)
- Caijie Zhou
- Longgang Traditional Chinese Medicine Hospital and Beijing University of Chinese Medicine Shenzhen Hospital, Shenzhen, China
| | - Meihua Li
- Longgang Traditional Chinese Medicine Hospital and Beijing University of Chinese Medicine Shenzhen Hospital, Shenzhen, China
| | - Yu Liu
- Department of Respirology & Allergy, Third Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Xinxin Wang
- Guangdong Provincial Regional Disease Key Laboratory, Shenzhen, China
- Institute of Allergy & Immunology of Shenzhen University, State Key Laboratory of Respiratory Diseases Allergy Division at Shenzhen University, Shenzhen, China
| | - Shuang Zhang
- Guangdong Provincial Regional Disease Key Laboratory, Shenzhen, China
- Institute of Allergy & Immunology of Shenzhen University, State Key Laboratory of Respiratory Diseases Allergy Division at Shenzhen University, Shenzhen, China
| | - Li Guan
- Department of Respirology & Allergy, Third Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Jingyi Hong
- Guangdong Provincial Regional Disease Key Laboratory, Shenzhen, China
- Institute of Allergy & Immunology of Shenzhen University, State Key Laboratory of Respiratory Diseases Allergy Division at Shenzhen University, Shenzhen, China
| | - Wei Zhou
- Guangdong Provincial Regional Disease Key Laboratory, Shenzhen, China
- Institute of Allergy & Immunology of Shenzhen University, State Key Laboratory of Respiratory Diseases Allergy Division at Shenzhen University, Shenzhen, China
| | - Gaohui Wu
- Department of Respirology & Allergy, Third Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Weiliang Diao
- Longgang Traditional Chinese Medicine Hospital and Beijing University of Chinese Medicine Shenzhen Hospital, Shenzhen, China
| | - Qinmiao Huang
- Department of Respirology & Allergy, Third Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Pingchang Yang
- Guangdong Provincial Regional Disease Key Laboratory, Shenzhen, China
- Institute of Allergy & Immunology of Shenzhen University, State Key Laboratory of Respiratory Diseases Allergy Division at Shenzhen University, Shenzhen, China
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Zhang H, Wang Y, Chen X, Zhang A, Hou L, Hong J, Liu J, Liu Z, Yang P. Targeting epithelial cell-derived TWIST1 alleviates allergic asthma. Cell Signal 2023; 102:110552. [PMID: 36481410 DOI: 10.1016/j.cellsig.2022.110552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 11/22/2022] [Accepted: 11/30/2022] [Indexed: 12/12/2022]
Abstract
It is well known that the T Helper (Th)2 bias plays a critical role in allergic asthma. Whereas the Th2 bias is maintained in the local tissues is uncertain. IL-33 is vital for the development of the Th2 polarization. TWIST-1 has an effect on regulating cellular functions. The aberrant activation of RAS sustains certain cellular activities. The aim of this study is to study the role of the interaction between activation of TWIST1 and RAS in inducing and maintaining Th2 polarization in allergic asthma. The epithelial cells of the airways (AEC) were isolated from the broncho-alveolar lavage fluids in patients with asthma. The mediators involved in the over-expression of IL-33 were determined by RNA sequencing. A mouse model was established to test the role of TWIST1 and RAS in developing allergic asthma. We observed a strong expression of TWIST1 in patients with allergic asthma that showed a positive correlation with asthmatic responses. TWIST1 favored the expression of the IL-33 in the AEC. Twist1-deficient AEC-carrying mice did not induce Th2 polarization in the airways. The expression TWIST1 in AECs was positively associated with RAS activation in AECs in patients with allergic asthma. The interaction between RAS and TWIST1 in AECs sustained airway allergic inflammation. Inhibition of TWIST1 or RAS prevented asthma-like inflammation in the mouse airways. In summary, the interaction between TWIST1 and RAS induces and maintains IL-33 expression in AECs to facilitate allergic inflammation in the respiratory tract. Inhibition of TWIST1 or RAS can prevent experimental allergic asthma.
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Affiliation(s)
- Huanping Zhang
- Department of Allergy Medicine, Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Taiyuan, China
| | - Yanfen Wang
- Department of Pediatrics, Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Taiyuan, China
| | - Xiaoxue Chen
- Department of Allergy Medicine, Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Taiyuan, China
| | - Aizhi Zhang
- Department of Critical care medicine, Second Hospital Affiliated to Shanxi Medical University, Taiyuan, China
| | - Lijun Hou
- Department of Allergy Medicine, Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Taiyuan, China
| | - Jingyi Hong
- Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Shenzhen, China; Institute of Allergy & Immunology of Shenzhen University School of Medicine, Shenzhen, China; State Key Laboratory of Respiratory Disease Allergy Shenzhen University Division, Shenzhen, China; Guangdong Provincial Standardization Allergen Engineering Research Center, Shenzhen, China; Shenzhen Key Laboratory of Allergy and Immunology, Shenzhen, China
| | - Jiangqi Liu
- Longgang ENT Hospital and Shenzhen ENT Institute, Shenzhen, China.
| | - Zhiqiang Liu
- Longgang ENT Hospital and Shenzhen ENT Institute, Shenzhen, China.
| | - Pingchang Yang
- Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Shenzhen, China; Institute of Allergy & Immunology of Shenzhen University School of Medicine, Shenzhen, China; State Key Laboratory of Respiratory Disease Allergy Shenzhen University Division, Shenzhen, China; Guangdong Provincial Standardization Allergen Engineering Research Center, Shenzhen, China; Shenzhen Key Laboratory of Allergy and Immunology, Shenzhen, China.
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Xu J, Liu J, Yang P, Lv P. Improving Peer Assessment by Incorporating Grading Behaviors: Models and Practices. INT J ARTIF INTELL T 2023. [DOI: 10.1142/s0218213023600072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Tu W, Xiao X, Lu J, Liu X, Wang E, Yuan R, Wan R, Shen Y, Xu D, Yang P, Gong M, Gao P, Huang SK. Vanadium exposure exacerbates allergic airway inflammation and remodeling through triggering reactive oxidative stress. Front Immunol 2023; 13:1099509. [PMID: 36776398 PMCID: PMC9912158 DOI: 10.3389/fimmu.2022.1099509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 12/22/2022] [Indexed: 01/28/2023] Open
Abstract
Background Metal components of environmental PM2.5 are associated with the exacerbation of allergic diseases like asthma. In our recent hospital-based population study, exposure to vanadium is shown to pose a significant risk for current asthma, but the causal relationship and its underlying molecular mechanisms remain unclear. Objective We sought to determine whether vanadium co-exposure can aggravate house dust mite (HDM)-induced allergic airway inflammation and remodeling, as well as investigate its related mechanisms. Methods Asthma mouse model was generated by using either vanadium pentoxide (V2O5) or HDM alone or in combination, in which the airway inflammation and remodeling was investigated. The effect of V2O5 co-exposure on HDM-induced epithelial-derived cytokine release and oxidative stress (ROS) generation was also examined by in vitro analyses. The role of ROS in V2O5 co-exposure-induced cytokine release and airway inflammation and remodeling was examined by using inhibitors or antioxidant. Results Compared to HDM alone, V2O5 co-exposure exacerbated HDM-induced airway inflammation with increased infiltration of inflammatory cells and elevated levels of Th1/Th2/Th17 and epithelial-derived (IL-25, TSLP) cytokines in the bronchoalveolar lavage fluids (BALFs). Intriguingly, V2O5 co-exposure also potentiated HDM-induced airway remodeling. Increased cytokine release was further supported by in vitro analysis in human bronchial epithelial cells (HBECs). Mechanistically, ROS, particularly mitochondrial-derived ROS, was significantly enhanced in HBECs after V2O5 co-exposure as compared to HDM challenge alone. Inhibition of ROS with its inhibitor N-acetyl-L-cysteine (NAC) and mitochondrial-targeted antioxidant MitoTEMPO blocked the increased epithelial release caused by V2O5 co-exposure. Furthermore, vitamin D3 as an antioxidant was found to inhibit V2O5 co-exposure-induced increased airway epithelial cytokine release and airway remodeling. Conclusions Our findings suggest that vanadium co-exposure exacerbates epithelial ROS generation that contribute to increased allergic airway inflammation and remodeling.
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Affiliation(s)
- Wei Tu
- Department of Respiratory & Allergy, Third Affiliated Hospital of Shenzhen University, Shenzhen, China,The State Key Laboratory of Respiratory Disease for Allergy, Shenzhen Key Laboratory of Allergy & Immunology, Shenzhen University School of Medicine, Shenzhen, China,Johns Hopkins Asthma and Allergy Center, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Xiaojun Xiao
- The State Key Laboratory of Respiratory Disease for Allergy, Shenzhen Key Laboratory of Allergy & Immunology, Shenzhen University School of Medicine, Shenzhen, China
| | - Jiahua Lu
- The State Key Laboratory of Respiratory Disease for Allergy, Shenzhen Key Laboratory of Allergy & Immunology, Shenzhen University School of Medicine, Shenzhen, China
| | - Xiaoyu Liu
- The State Key Laboratory of Respiratory Disease for Allergy, Shenzhen Key Laboratory of Allergy & Immunology, Shenzhen University School of Medicine, Shenzhen, China
| | - Eryi Wang
- Department of Respiratory & Allergy, Third Affiliated Hospital of Shenzhen University, Shenzhen, China,The State Key Laboratory of Respiratory Disease for Allergy, Shenzhen Key Laboratory of Allergy & Immunology, Shenzhen University School of Medicine, Shenzhen, China
| | - Ruyi Yuan
- The State Key Laboratory of Respiratory Disease for Allergy, Shenzhen Key Laboratory of Allergy & Immunology, Shenzhen University School of Medicine, Shenzhen, China
| | - Rongjun Wan
- Johns Hopkins Asthma and Allergy Center, Johns Hopkins University School of Medicine, Baltimore, MD, United States,Department of Respiratory Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Yingchun Shen
- Johns Hopkins Asthma and Allergy Center, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Damo Xu
- Department of Respiratory & Allergy, Third Affiliated Hospital of Shenzhen University, Shenzhen, China,The State Key Laboratory of Respiratory Disease for Allergy, Shenzhen Key Laboratory of Allergy & Immunology, Shenzhen University School of Medicine, Shenzhen, China
| | - Pingchang Yang
- Department of Respiratory & Allergy, Third Affiliated Hospital of Shenzhen University, Shenzhen, China,The State Key Laboratory of Respiratory Disease for Allergy, Shenzhen Key Laboratory of Allergy & Immunology, Shenzhen University School of Medicine, Shenzhen, China
| | - Miao Gong
- Department of Respiratory & Allergy, Third Affiliated Hospital of Shenzhen University, Shenzhen, China,The State Key Laboratory of Respiratory Disease for Allergy, Shenzhen Key Laboratory of Allergy & Immunology, Shenzhen University School of Medicine, Shenzhen, China
| | - Peisong Gao
- Johns Hopkins Asthma and Allergy Center, Johns Hopkins University School of Medicine, Baltimore, MD, United States,*Correspondence: Shau-Ku Huang, ; Peisong Gao,
| | - Shau-Ku Huang
- Department of Respiratory & Allergy, Third Affiliated Hospital of Shenzhen University, Shenzhen, China,National Institute of Environmental Health Sciences, National Health Research Institutes, Miaoli, Taiwan,*Correspondence: Shau-Ku Huang, ; Peisong Gao,
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Tu W, Xiao X, Lu J, Liu X, Wang E, Yuan R, Wan R, Shen Y, Xu D, Yang P, Gong M, Gao P, Huang SK. Vanadium exposure exacerbates allergic airway inflammation and remodeling through triggering reactive oxidative stress. Front Immunol 2023. [DOI: 10.3389/fimmu.2023.1099509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
BackgroundMetal components of environmental PM2.5 are associated with the exacerbation of allergic diseases like asthma. In our recent hospital-based population study, exposure to vanadium is shown to pose a significant risk for current asthma, but the causal relationship and its underlying molecular mechanisms remain unclear.ObjectiveWe sought to determine whether vanadium co-exposure can aggravate house dust mite (HDM)-induced allergic airway inflammation and remodeling, as well as investigate its related mechanisms.MethodsAsthma mouse model was generated by using either vanadium pentoxide (V2O5) or HDM alone or in combination, in which the airway inflammation and remodeling was investigated. The effect of V2O5 co-exposure on HDM-induced epithelial-derived cytokine release and oxidative stress (ROS) generation was also examined by in vitro analyses. The role of ROS in V2O5 co-exposure-induced cytokine release and airway inflammation and remodeling was examined by using inhibitors or antioxidant.ResultsCompared to HDM alone, V2O5 co-exposure exacerbated HDM-induced airway inflammation with increased infiltration of inflammatory cells and elevated levels of Th1/Th2/Th17 and epithelial-derived (IL-25, TSLP) cytokines in the bronchoalveolar lavage fluids (BALFs). Intriguingly, V2O5 co-exposure also potentiated HDM-induced airway remodeling. Increased cytokine release was further supported by in vitro analysis in human bronchial epithelial cells (HBECs). Mechanistically, ROS, particularly mitochondrial-derived ROS, was significantly enhanced in HBECs after V2O5 co-exposure as compared to HDM challenge alone. Inhibition of ROS with its inhibitor N-acetyl-L-cysteine (NAC) and mitochondrial-targeted antioxidant MitoTEMPO blocked the increased epithelial release caused by V2O5 co-exposure. Furthermore, vitamin D3 as an antioxidant was found to inhibit V2O5 co-exposure-induced increased airway epithelial cytokine release and airway remodeling.ConclusionsOur findings suggest that vanadium co-exposure exacerbates epithelial ROS generation that contribute to increased allergic airway inflammation and remodeling.
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Wu Y, Liu Y, Wang X, Liu H, Wu G, Yang L, Guan L, Huang Q, Zeng X, Yang P. Substance P promotes immunotherapy efficacy for airway allergy. World Allergy Organ J 2022; 16:100730. [PMID: 36601262 PMCID: PMC9791926 DOI: 10.1016/j.waojou.2022.100730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 11/14/2022] [Accepted: 11/22/2022] [Indexed: 12/23/2022] Open
Abstract
Background Allergen-specific immunotherapy (AIT) has been employed in the treatment of allergic diseases for many years. However, the effectiveness of AIT requires improvement. Substance P (SP) can interact with immune cells, modulate immune cell activity, and regulate immune reaction. The purpose of this study is to use SP as an immune regulator to enhance the therapeutic efficacy of AIT. Methods An established mouse model of the airway allergy disorder (AAD) was employed with ovalbumin as a specific antigen. The AAD response was evaluated through established procedures. AAD mice were treated with AIT employing SP as an immune regulator. Dendritic cells were isolated from the airway tissues by magnetic cell sorting, and were analyzed by RNA sequencing (RNAseq). Results We observed that after sensitization with ovalbumin, mice exhibited AAD-like symptoms, serum specific IgE, and Th2 polarization. The presence of SP in the course of sensitization prevented the development of AAD. Treating mice with SP by nasal instillations induced IL-10, but not TGF-β, in dendritic cells of the airway tissues. The most differentially expressed genes (DEG) in the dendritic cells were those related to the IL-10 expression, including Il10, Tac1r, and Mtor. The gene ontology analysis showed that these DEGs mainly mapped to the tachykinin-PI3K-AKT-mTOR pathway. The addition of SP substantially enhanced the therapeutic efficacy of AIT for AAD by inducing antigen specific type 1 regulatory T cells (Tr1 cells). Conclusion Acting as an immune regulator, SP promotes the therapeutic efficacy for AAD by inducing antigen specific Tr1 cells in the airway tissues.
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Affiliation(s)
- Yongjin Wu
- Department of Allergy, Longgang ENT Hospital, Shenzhen Key Laboratory of ENT & Shenzhen ENT Institute, Shenzhen, China
| | - Yu Liu
- Departments of Respirology and Allergy, Third Affiliated Hospital, Shenzhen University, Shenzhen, China
| | - Xinxin Wang
- Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Shenzhen, China,Institute of Allergy & Immunology, Shenzhen University School of Medicine, Shenzhen, China,State Key Laboratory of Respiratory Diseases Shenzhen University Division, Shenzhen, China,Shenzhen Municipal Key Laboratory of Allergy & Immunology, Shenzhen, China,Guangdong Provincial Center for Standardized Allergen Engineering, Shenzhen, China
| | - Huazhen Liu
- Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Shenzhen, China,Institute of Allergy & Immunology, Shenzhen University School of Medicine, Shenzhen, China,State Key Laboratory of Respiratory Diseases Shenzhen University Division, Shenzhen, China,Shenzhen Municipal Key Laboratory of Allergy & Immunology, Shenzhen, China,Guangdong Provincial Center for Standardized Allergen Engineering, Shenzhen, China
| | - Gaohui Wu
- Departments of Respirology and Allergy, Third Affiliated Hospital, Shenzhen University, Shenzhen, China
| | - Liteng Yang
- Departments of Respirology and Allergy, Third Affiliated Hospital, Shenzhen University, Shenzhen, China
| | - Li Guan
- Departments of Respirology and Allergy, Third Affiliated Hospital, Shenzhen University, Shenzhen, China
| | - Qinmiao Huang
- Departments of Respirology and Allergy, Third Affiliated Hospital, Shenzhen University, Shenzhen, China,Corresponding author.
| | - Xianhai Zeng
- Department of Allergy, Longgang ENT Hospital, Shenzhen Key Laboratory of ENT & Shenzhen ENT Institute, Shenzhen, China,Corresponding author. Department of Otolaryngology, Longgang E.N.T Hospital, Shenzhen, China.
| | - Pingchang Yang
- Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Shenzhen, China,Institute of Allergy & Immunology, Shenzhen University School of Medicine, Shenzhen, China,State Key Laboratory of Respiratory Diseases Shenzhen University Division, Shenzhen, China,Shenzhen Municipal Key Laboratory of Allergy & Immunology, Shenzhen, China,Guangdong Provincial Center for Standardized Allergen Engineering, Shenzhen, China,Corresponding author. Room A7-509, 1066 Xueyuan Blvd, Shenzhen, 518055, China.
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Hu S, Liu H, Tao S, Wang Y, Wang S, Liao Y, Zheng P, Yang P. The environmental pollutant 3-methyl-4-nitrophenol reduces the regulatory T cells in the intestine. Toxicology 2022; 482:153356. [DOI: 10.1016/j.tox.2022.153356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 10/17/2022] [Accepted: 10/21/2022] [Indexed: 11/06/2022]
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Duan JY, Yang P, Wang Y, Zheng RJ, Yuan MY, Yang XC, Li Y, Wang Y. [Impact of NLR on atrial fibrillation recurrence after radiofrequency ablation in atrial fibrillation patients combined with heart failure]. Zhonghua Xin Xue Guan Bing Za Zhi 2022; 50:1074-1079. [PMID: 36418275 DOI: 10.3760/cma.j.cn112148-20220816-00633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Objective: To investigate the predictive value of neutrophils-to-lymphocytes ratio (NLR) for atrial fibrillation recurrence after radiofrequency ablation in atrial fibrillation patients combined with heart failure. Methods: This is a retrospective cohort study. Patients with atrial fibrillation and heart failure who received radiofrequency ablation in the First Affiliated Hospital of Zhengzhou University from January 2019 to June 2020 were included. Patient were followed up in the outpatient clinic at 3, 6, 9 and 12 months after radiofrequency ablation and were divided into recurrent and non-recurrent groups according to the absence or presence of atrial fibrillation. Demographic data, echocardiographic indices and inflammation-related indices including NLR were collected and compared between the two groups. Spearman rank correlation was performed to analyze the correlation of NLR with atrial fibrillation recurrence after radiofrequency ablation. Multivariate logistic regression analysis was used to determine independent risk factors of atrial fibrillation recurrence after radiofrequency ablation. The receiver operating characteristic (ROC) curve was used to evaluate the value of NLR in predicting the atrial fibrillation recurrence after radiofrequency ablation. Results: A total of 883 patients were included, of which 460 (52.1%) were male, mean age was (64.4±10.7) years old. There were 246 patients (27.9%) in the recurrence group and 637 patients (72.1%) in the non-recurrence group. Compared with the non-recurrent group, the duration of atrial fibrillation, NLR, neutrophil count, N-terminal B-type natriuretic peptide precursor (NT-proBNP) and body mass index levels were significantly higher, while lymphocyte count was significantly lower in the recurrence group than in the non-recurrent group (all P<0.05). Spearman rank correlation analysis showed that NLR was positively correlated with the atrial fibrillation recurrence (r=0.333, P<0.05). Multivariate logistic regression analysis showed that NLR was an independent risk factor for atrial fibrillation recurrence after radiofrequency ablation in atrial fibrillation patients combined heart failure (OR=1.634, P<0.001). The ROC curve showed that the area under the curve (AUC) of NLR in predicting the recurrence of atrial fibrillation after radiofrequency ablation was 0.715 (95%CI: 0.668-0.762, P<0.001), with a sensitivity of 55.61% and a specificity of 84.54%. Conclusion: NLR is a useful predictor of atrial fibrillation recurrence after radiofrequency ablation in atrial fibrillation patients combined with heart failure.
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Affiliation(s)
- J Y Duan
- Department of Geriatric Cardiology, First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - P Yang
- Department of Geriatric Cardiology, First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Y Wang
- Department of Geriatric Cardiology, First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - R J Zheng
- Department of Geriatric Cardiology, First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - M Y Yuan
- Department of Geriatric Cardiology, First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - X C Yang
- Department of Geriatric Cardiology, First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Y Li
- Department of Geriatric Cardiology, First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Y Wang
- Department of Geriatric Cardiology, First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
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Luo X, Mo L, Wang X, Zhang S, Liu H, Wu G, Huang Q, Liu D, Yang P. Rnf20 inhibition enhances immunotherapy by improving regulatory T cell generation. Cell Mol Life Sci 2022; 79:588. [PMID: 36371755 DOI: 10.1007/s00018-022-04613-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 10/06/2022] [Accepted: 10/26/2022] [Indexed: 11/14/2022]
Abstract
BACKGROUND Allergic disorders are common all over the world. The pathogenesis of allergy is unclear. Therapies for allergic disorders require improvement. Endoplasmic reticulum (ER) stress is one of the factors influencing immune response. The purpose of this study is to improve the effectiveness of immunotherapy for experimental respiratory allergy by targeting the ER stress signal pathway. METHODS Committed CD4+ T cells were isolated from blood samples collected from patients with allergic rhinitis (AR) and TCR ovalbumin transgenic mice. The effects of TCR engagement and 3-methyl-4-nitrophenol (MNP) on inducing ER stress in committed CD4+ T cells were evaluated. RESULTS ER stress was detected in antigen-specific CD4+ T cells (sCD4+ T cells) of AR patients. The environmental pollutant MNP increased the expression of the X-binding protein-1 (XBP1) in the committed CD4+ T cells during the TCR engagement. XBP1 mediated the effects of MNP on inhibiting regulatory T cell (Treg) generation. The effects of MNP on induction of protein 20 (Rnf20) in CD4+ T cells were mediated by XBP1. Inhibition of Rnf20 rescued the Treg development from MNP-primed sCD4+ T cells. The ablation of Rnf20 improved the immunotherapy of AR through the restoration of the Treg generation. CONCLUSIONS ER stress can be detected in CD4+ T cells in TCR engagement. Exposure to MNP exacerbates ER stress in committed CD4+ T cells. Regulation of the ER stress-related Rnf20 expression can restore the generation of Treg from CD4+ T cells of subjects with allergic diseases.
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Affiliation(s)
- Xiangqian Luo
- Department of Pediatric Otolaryngology, Shenzhen Hospital, Southern Medial University, 1333 Xinhu Road, Shenzhen, 518055, China
| | - Lihua Mo
- Department of Pediatric Otolaryngology, Shenzhen Hospital, Southern Medial University, 1333 Xinhu Road, Shenzhen, 518055, China
| | - Xinxin Wang
- Guangdong Provincial Regional Disease Key Laboratory, Room A7-509, 1066 Xueyuan Blvd, Shenzhen, 518055, China
- Institute of Allergy, State Key Laboratory of Respiratory Diseases Allergy Division, Immunology of Shenzhen University, Shenzhen University, Room A7-509, 1066 Xueyuan Blvd, Shenzhen, 518055, China
| | - Shuang Zhang
- Guangdong Provincial Regional Disease Key Laboratory, Room A7-509, 1066 Xueyuan Blvd, Shenzhen, 518055, China
- Institute of Allergy, State Key Laboratory of Respiratory Diseases Allergy Division, Immunology of Shenzhen University, Shenzhen University, Room A7-509, 1066 Xueyuan Blvd, Shenzhen, 518055, China
| | - Huazhen Liu
- Guangdong Provincial Regional Disease Key Laboratory, Room A7-509, 1066 Xueyuan Blvd, Shenzhen, 518055, China
- Institute of Allergy, State Key Laboratory of Respiratory Diseases Allergy Division, Immunology of Shenzhen University, Shenzhen University, Room A7-509, 1066 Xueyuan Blvd, Shenzhen, 518055, China
| | - Gaohui Wu
- Department of Respirology, Third Affiliated Hospital of Shenzhen University, Room A7-509, 1066 Xueyuan Blvd, Shenzhen, 518055, China
| | - Qinmiao Huang
- Department of Respirology, Third Affiliated Hospital of Shenzhen University, Room A7-509, 1066 Xueyuan Blvd, Shenzhen, 518055, China.
| | - Dabo Liu
- Department of Pediatric Otolaryngology, Shenzhen Hospital, Southern Medial University, 1333 Xinhu Road, Shenzhen, 518055, China.
| | - Pingchang Yang
- Guangdong Provincial Regional Disease Key Laboratory, Room A7-509, 1066 Xueyuan Blvd, Shenzhen, 518055, China.
- Institute of Allergy, State Key Laboratory of Respiratory Diseases Allergy Division, Immunology of Shenzhen University, Shenzhen University, Room A7-509, 1066 Xueyuan Blvd, Shenzhen, 518055, China.
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He X, Liu J, Xiao X, Zhang S, Wang X, Liu J, Liu Z, Wang J, Liu X, Li G, Yang P. Targeting psychological stress-steroid-MARCH1 signaling pathway promotes the efficacy of specific allergen immunotherapy. Am J Cancer Res 2022; 12:7717-7728. [PMID: 36451862 PMCID: PMC9706592 DOI: 10.7150/thno.78851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Accepted: 10/29/2022] [Indexed: 11/24/2022] Open
Abstract
Background: The therapeutic efficacy of allergen specific immunotherapy (SIT) is recognized, but needs improved. Psychological stress influences the immune system's function. The objective of this study is to elucidate the effects of psychological stress on compromising the effectiveness of SIT. Methods: A murine model with the airway allergic disorder (AAD) was established. Mice were treated with SIT with or without restraint stress (Rs). Results: Rs was found to significantly hamper the efficacy of SIT in mice with AAD. Induction of IL-10+ dendritic cells and type 1 regulatory T cells were reduced by Rs in the airway tissues. Rs-induced cortisol release subverted immune tolerance generation. Expression of MARCH1 was elevated in dendritic cells of the allergic lesion sites. The Rs-induced MARCH1 mediated the immune impairment in AAD mice. Genetic ablation of MARCH1 in dendritic cells efficiently blocked the Rs-compromised the therapeutic efficacy of SIT. Conclusion: Rs can increase the expression of MARCH1 in DCs of the allergic lesion sites. MARCH1 interferes with the immune regulatory properties in DCs, and impairs the immune regulatory capacity. Blocking MARCH1 can counteract the Rs-affected SIT efficacy.
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Affiliation(s)
- Xiang He
- Laboratory of Allergy and Precision Medicine, Chengdu Institute of Respiratory Health, the Third People's Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, China
| | - Jie Liu
- Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Shenzhen, China.,Institute of Allergy & Immunology, Shenzhen University School of Medicine, State Key Laboratory of Respiratory Disease Allergy Division at Shenzhen University, Shenzhen, China
| | - Xiaojun Xiao
- Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Shenzhen, China.,Institute of Allergy & Immunology, Shenzhen University School of Medicine, State Key Laboratory of Respiratory Disease Allergy Division at Shenzhen University, Shenzhen, China
| | - Shuang Zhang
- Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Shenzhen, China.,Institute of Allergy & Immunology, Shenzhen University School of Medicine, State Key Laboratory of Respiratory Disease Allergy Division at Shenzhen University, Shenzhen, China
| | - Xinxin Wang
- Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Shenzhen, China.,Institute of Allergy & Immunology, Shenzhen University School of Medicine, State Key Laboratory of Respiratory Disease Allergy Division at Shenzhen University, Shenzhen, China
| | - Jiangqi Liu
- Longgang ENT Hospital & Shenzhen ENT Institute, Shenzhen, China
| | - Zhiqiang Liu
- Longgang ENT Hospital & Shenzhen ENT Institute, Shenzhen, China
| | - Junyi Wang
- Laboratory of Allergy and Precision Medicine, Chengdu Institute of Respiratory Health, the Third People's Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, China
| | - Xiaoyu Liu
- Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Shenzhen, China.,Institute of Allergy & Immunology, Shenzhen University School of Medicine, State Key Laboratory of Respiratory Disease Allergy Division at Shenzhen University, Shenzhen, China.,✉ Corresponding authors: Dr. Guoping Li. Department of Respirology, Chengdu Third People's Hospital, Chengdu, China; Dr. Xiaoyu Liu. Room A7-511. 1066 Xueyuan Blvd. Shenzhen 518055, China; Dr. Pingchang Yang (). Room A7-509. 1066 Xueyuan Blvd. Shenzhen 518055, China. Tel: 8675586172722
| | - Guoping Li
- Laboratory of Allergy and Precision Medicine, Chengdu Institute of Respiratory Health, the Third People's Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, China.,✉ Corresponding authors: Dr. Guoping Li. Department of Respirology, Chengdu Third People's Hospital, Chengdu, China; Dr. Xiaoyu Liu. Room A7-511. 1066 Xueyuan Blvd. Shenzhen 518055, China; Dr. Pingchang Yang (). Room A7-509. 1066 Xueyuan Blvd. Shenzhen 518055, China. Tel: 8675586172722
| | - Pingchang Yang
- Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Shenzhen, China.,Institute of Allergy & Immunology, Shenzhen University School of Medicine, State Key Laboratory of Respiratory Disease Allergy Division at Shenzhen University, Shenzhen, China.,✉ Corresponding authors: Dr. Guoping Li. Department of Respirology, Chengdu Third People's Hospital, Chengdu, China; Dr. Xiaoyu Liu. Room A7-511. 1066 Xueyuan Blvd. Shenzhen 518055, China; Dr. Pingchang Yang (). Room A7-509. 1066 Xueyuan Blvd. Shenzhen 518055, China. Tel: 8675586172722
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Hsu S, Chen Y, Yang P, Hu Y, Chen R, Zeng Z, Du S. Radiotherapy Enhance the Immune Checkpoint Inhibitors Efficacy in Advanced Liver Cancer. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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