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Wang SY, Zhang SJ, Meng HF, Xu HQ, Guo ZX, Yan JF, Gao JL, Niu LN, Wang SL, Jiao K. DPSCs regulate epithelial-T cell interactions in oral submucous fibrosis. Stem Cell Res Ther 2024; 15:113. [PMID: 38650025 PMCID: PMC11036714 DOI: 10.1186/s13287-024-03720-5] [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: 10/21/2023] [Accepted: 04/07/2024] [Indexed: 04/25/2024] Open
Abstract
BACKGROUND Oral submucous fibrosis (OSF) is a precancerous lesion characterized by fibrous tissue deposition, the incidence of which correlates positively with the frequency of betel nut chewing. Prolonged betel nut chewing can damage the integrity of the oral mucosal epithelium, leading to chronic inflammation and local immunological derangement. However, currently, the underlying cellular events driving fibrogenesis and dysfunction are incompletely understood, such that OSF has few treatment options with limited therapeutic effectiveness. Dental pulp stem cells (DPSCs) have been recognized for their anti-inflammatory and anti-fibrosis capabilities, making them promising candidates to treat a range of immune, inflammatory, and fibrotic diseases. However, the application of DPSCs in OSF is inconclusive. Therefore, this study aimed to explore the pathogenic mechanism of OSF and, based on this, to explore new treatment options. METHODS A human cell atlas of oral mucosal tissues was compiled using single-cell RNA sequencing to delve into the underlying mechanisms. Epithelial cells were reclustered to observe the heterogeneity of OSF epithelial cells and their communication with immune cells. The results were validated in vitro, in clinicopathological sections, and in animal models. In vivo, the therapeutic effect and mechanism of DPSCs were characterized by histological staining, immunohistochemical staining, scanning electron microscopy, and atomic force microscopy. RESULTS A unique epithelial cell population, Epi1.2, with proinflammatory and profibrotic functions, was predominantly found in OSF. Epi1.2 cells also induced the fibrotic process in fibroblasts by interacting with T cells through receptor-ligand crosstalk between macrophage migration inhibitory factor (MIF)-CD74 and C-X-C motif chemokine receptor 4 (CXCR4). Furthermore, we developed OSF animal models and simulated the clinical local injection process in the rat buccal mucosa using DPSCs to assess their therapeutic impact and mechanism. In the OSF rat model, DPSCs demonstrated superior therapeutic effects compared with the positive control (glucocorticoids), including reducing collagen deposition and promoting blood vessel regeneration. DPSCs mediated immune homeostasis primarily by regulating the numbers of KRT19 + MIF + epithelial cells and via epithelial-stromal crosstalk. CONCLUSIONS Given the current ambiguity surrounding the cause of OSF and the limited treatment options available, our study reveals that epithelial cells and their crosstalk with T cells play an important role in the mechanism of OSF and suggests the therapeutic promise of DPSCs.
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Affiliation(s)
- S Y Wang
- Department of Stomatology, Tangdu Hospital & State Key Laboratory of Oral and Maxillofacial Reconstruction and Regeneration & School of Stomatology, The Fourth Military Medical University, 169 West Changle Road, Xincheng District, 710032, Xi'an, Shaanxi, P. R. China
| | - S J Zhang
- State Key Laboratory of Oral and Maxillofacial Reconstruction and Regeneration & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, School of Stomatology, The Fourth Military Medical University, 169 West Changle Road, Xincheng District, 710032, Xi'an, Shaanxi, P. R. China
| | - H F Meng
- Beijing SH Bio-tech Co., 100071, Beijing, P.R. China
| | - H Q Xu
- Department of Stomatology, Tangdu Hospital & State Key Laboratory of Oral and Maxillofacial Reconstruction and Regeneration & School of Stomatology, The Fourth Military Medical University, 169 West Changle Road, Xincheng District, 710032, Xi'an, Shaanxi, P. R. China
- The College of Life Science, Northwest University, 710032, Xi'an, Shaanxi, P.R. China
| | - Z X Guo
- Department of Stomatology, Tangdu Hospital & State Key Laboratory of Oral and Maxillofacial Reconstruction and Regeneration & School of Stomatology, The Fourth Military Medical University, 169 West Changle Road, Xincheng District, 710032, Xi'an, Shaanxi, P. R. China
| | - J F Yan
- Department of Stomatology, Tangdu Hospital & State Key Laboratory of Oral and Maxillofacial Reconstruction and Regeneration & School of Stomatology, The Fourth Military Medical University, 169 West Changle Road, Xincheng District, 710032, Xi'an, Shaanxi, P. R. China
| | - J L Gao
- State Key Laboratory of Oral and Maxillofacial Reconstruction and Regeneration & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, School of Stomatology, The Fourth Military Medical University, 169 West Changle Road, Xincheng District, 710032, Xi'an, Shaanxi, P. R. China
| | - L N Niu
- State Key Laboratory of Oral and Maxillofacial Reconstruction and Regeneration & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, School of Stomatology, The Fourth Military Medical University, 169 West Changle Road, Xincheng District, 710032, Xi'an, Shaanxi, P. R. China.
| | - S L Wang
- Beijing Laboratory of Oral Health, Capital Medical University, 10 Xitoutiao, Fengtai District, 100069, Beijing, P.R. China.
- Laboratory of Homeostatic Medicine, School of Medicine, Southern University of Science and Technology, No. 1088 Xueyuan Avenue, Nanshan District, 518055, Shenzhen, P.R. China.
| | - K Jiao
- Department of Stomatology, Tangdu Hospital & State Key Laboratory of Oral and Maxillofacial Reconstruction and Regeneration & School of Stomatology, The Fourth Military Medical University, 169 West Changle Road, Xincheng District, 710032, Xi'an, Shaanxi, P. R. China.
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Brenchley L, McDermott DH, Gardner PJ, Silva LM, Gao JL, Cho E, Velez D, Moutsopoulos NM, Murphy PM, Fraser D. Periodontal disease in patients with WHIM syndrome. J Clin Periodontol 2024; 51:464-473. [PMID: 38185798 PMCID: PMC11000827 DOI: 10.1111/jcpe.13940] [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: 10/31/2023] [Revised: 11/29/2023] [Accepted: 12/17/2023] [Indexed: 01/09/2024]
Abstract
AIM WHIM (warts, hypogammaglobulinaemia, infections and myelokathexis) syndrome is a rare combined primary immunodeficiency disease caused by gain-of-function (GOF) mutations in the chemokine receptor CXCR4 and includes severe neutropenia as a common feature. Neutropenia is a known risk factor for periodontitis; however, a detailed periodontal evaluation of a WHIM syndrome cohort is lacking. This study aimed to establish the evidence base for the periodontal status of patients with WHIM syndrome. MATERIALS AND METHODS Twenty-two adult WHIM syndrome patients and 22 age- and gender-matched healthy volunteers (HVs) were evaluated through a comprehensive medical and periodontal examination. A mouse model of WHIM syndrome was assessed for susceptibility to naturally progressing or inducible periodontitis. RESULTS Fourteen patients with WHIM syndrome (63.6%) and one HV (4.5%) were diagnosed with Stage III/IV periodontitis. No WHIM patient presented with the early onset, dramatic clinical phenotypes typically associated with genetic forms of neutropenia. Age, but not the specific CXCR4 mutation or absolute neutrophil count, was associated with periodontitis severity in the WHIM cohort. Mice with a Cxcr4 GOF mutation did not exhibit increased alveolar bone loss in spontaneous or ligature-induced periodontitis. CONCLUSIONS Overall, WHIM syndrome patients presented with an increased severity of periodontitis despite past and ongoing neutrophil mobilization treatments. GOF mutations in CXCR4 may be a risk factor for periodontitis in humans.
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Affiliation(s)
- Laurie Brenchley
- Oral Immunity and Infection Section, National Institute of Dental and Craniofacial Research, NIH, Bethesda, MD 2089
| | - David H. McDermott
- Molecular Signaling Section, Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, NIH, Bethesda, MD 20892
| | - Pamela J. Gardner
- Office of the Clinical Director, National Institute of Dental and Craniofacial Research, NIH, Bethesda, MD 20892
| | - Lakmali M. Silva
- Department of Oral Medicine, Immunity, and Infection. Harvard School of Dental Medicine, Boston, MA 02115
| | - Ji-Liang Gao
- Molecular Signaling Section, Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, NIH, Bethesda, MD 20892
| | - Elena Cho
- Molecular Signaling Section, Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, NIH, Bethesda, MD 20892
| | - Daniel Velez
- Molecular Signaling Section, Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, NIH, Bethesda, MD 20892
| | - Niki M. Moutsopoulos
- Oral Immunity and Infection Section, National Institute of Dental and Craniofacial Research, NIH, Bethesda, MD 2089
| | - Philip M. Murphy
- Molecular Signaling Section, Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, NIH, Bethesda, MD 20892
| | - David Fraser
- Oral Immunity and Infection Section, National Institute of Dental and Craniofacial Research, NIH, Bethesda, MD 2089
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Gao JL, Owusu-Ansah A, Yang A, Yim E, McDermott DH, Jacobs P, Majumdar S, Choi U, Sweeney CL, Malech HL, Murphy PM. CRISPR/Cas9-mediated Cxcr4 disease allele inactivation for gene therapy in a mouse model of WHIM syndrome. Blood 2023; 142:23-32. [PMID: 36928087 PMCID: PMC10356574 DOI: 10.1182/blood.2022019142] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 02/07/2023] [Accepted: 03/10/2023] [Indexed: 03/18/2023] Open
Abstract
WHIM syndrome is an autosomal dominant immunodeficiency disorder caused by gain-of-function mutations in chemokine receptor CXCR4 that promote severe panleukopenia because of retention of mature leukocytes in the bone marrow (BM). We previously reported that Cxcr4-haploinsufficient (Cxcr4+/o) hematopoietic stem cells (HSCs) have a strong selective advantage for durable hematopoietic reconstitution over wild-type (Cxcr4+/+) and WHIM (Cxcr4+/w) HSCs and that a patient with WHIM was spontaneously cured by chromothriptic deletion of the disease allele in an HSC, suggesting that WHIM allele inactivation through gene editing may be a safe genetic cure strategy for the disease. We have developed a 2-step preclinical protocol of autologous hematopoietic stem and progenitor cell (HSPC) transplantation to achieve this goal. First, 1 copy of Cxcr4 in HSPCs was inactivated in vitro by CRISPR/Cas9 editing with a single guide RNA (sgRNA) that does not discriminate between Cxcr4+/w and Cxcr4+/+ alleles. Then, through in vivo natural selection, WHIM allele-inactivated cells were enriched over wild-type allele-inactivated cells. The WHIM allele-inactivated HSCs retained long-term pluripotency and selective hematopoietic reconstitution advantages. To our knowledge, this is the first example of gene therapy for an autosomal dominant gain-of-function disease using a disease allele inactivation strategy in place of the less efficient disease allele repair approach.
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Affiliation(s)
- Ji-Liang Gao
- Molecular Signaling Section, Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD
| | - Albert Owusu-Ansah
- Molecular Signaling Section, Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD
| | - Alexander Yang
- Molecular Signaling Section, Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD
| | - Erin Yim
- Molecular Signaling Section, Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD
| | - David H. McDermott
- Molecular Signaling Section, Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD
| | - Paejonette Jacobs
- Molecular Signaling Section, Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD
| | - Shamik Majumdar
- Molecular Signaling Section, Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD
| | - Uimook Choi
- Genetic Immunotherapy Section, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD
| | - Colin L. Sweeney
- Genetic Immunotherapy Section, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD
| | - Harry L. Malech
- Genetic Immunotherapy Section, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD
| | - Philip M. Murphy
- Molecular Signaling Section, Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD
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Zhao QW, Chen SH, Li XM, Gao JL, Fu H, Dai JM. [The mediating effect of resilience on anxiety and subjective well-being in occupational population]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2023; 41:434-438. [PMID: 37400404 DOI: 10.3760/cma.j.cn121094-20211206-00603] [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] [Subscribe] [Scholar Register] [Indexed: 07/05/2023]
Abstract
Objective: To explore the current situation of anxiety, subjective well-being in occupational population and the mediating effect of resilience. Methods: From March 24th to 26th, 2020, a cross-sectional survey was conducted among occupational population aged ≥18 years old using online questionnaires. A total of 2134 valid questionnaires were obtained, with respondents from 30 provinces, autonomous regions, and municipalities directly under the Central Government. Their general demographic data, subjective well-being, anxiety, and resilience were collected. Pearson χ(2) test and Spearson correlation analysis were used for data analysis, and structural equation model was used to explore the mediating effect of resilience on anxiety and subjective well-being. Results: The age of the respondents ranged from 18 to 60 years old, with an average age of (31.19±7.09) years old, including 1075 (50.4%) women and 1059 (49.6%) men. The positive rates of low subjective well-being and anxiety were 46.5% (992/2134) and 28.4% (607/2134), respectively. Anxiety scores were significantly negatively correlated with subjective well-being scores and resilience scores (r(s)=-0.52, -0.41, P<0.05), while resilience was significantly positively correlated with subjective well-being (r(s)=0.32, P<0.05). Structural equation models showed that anxiety had a negative predictive effect on subjective well-being, while resilience not only had a positive predictive effect on subjective well-being, but also played a mediating role between anxiety and subjective well-being, with a mediating effect of 9.9%. Conclusion: The situation of anxiety and well-being in the occupational population is still not optimistic, and resilience has a mediating effect between anxiety and subjective well-being.
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Affiliation(s)
- Q W Zhao
- Department of Preventive Medicine and Health Education, School of Public Health, Fudan University, Shanghai 200032, China
| | - S H Chen
- Department of Preventive Medicine and Health Education, School of Public Health, Fudan University, Shanghai 200032, China
| | - X M Li
- Department of Preventive Medicine and Health Education, School of Public Health, Fudan University, Shanghai 200032, China
| | - J L Gao
- Department of Preventive Medicine and Health Education, School of Public Health, Fudan University, Shanghai 200032, China
| | - H Fu
- Department of Preventive Medicine and Health Education, School of Public Health, Fudan University, Shanghai 200032, China
| | - J M Dai
- Department of Preventive Medicine and Health Education, School of Public Health, Fudan University, Shanghai 200032, China
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Majumdar S, Pontejo SM, Jaiswal H, Gao JL, Salancy A, Stassenko E, Yamane H, McDermott DH, Balabanian K, Bachelerie F, Murphy PM. Severe CD8+ T Lymphopenia in WHIM Syndrome Caused by Selective Sequestration in Primary Immune Organs. J Immunol 2023; 210:1913-1924. [PMID: 37133343 PMCID: PMC10247468 DOI: 10.4049/jimmunol.2200871] [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] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 04/10/2023] [Indexed: 05/04/2023]
Abstract
Warts, hypogammaglobulinemia, infections, and myelokathexis (WHIM) syndrome is an ultra-rare combined primary immunodeficiency disease caused by heterozygous gain-of-function mutations in the chemokine receptor CXCR4. WHIM patients typically present with recurrent acute infections associated with myelokathexis (severe neutropenia due to bone marrow retention of mature neutrophils). Severe lymphopenia is also common, but the only associated chronic opportunistic pathogen is human papillomavirus and mechanisms are not clearly defined. In this study, we show that WHIM mutations cause more severe CD8 than CD4 lymphopenia in WHIM patients and WHIM model mice. Mechanistic studies in mice revealed selective and WHIM allele dose-dependent accumulation of mature CD8 single-positive cells in thymus in a cell-intrinsic manner due to prolonged intrathymic residence, associated with increased CD8 single-positive thymocyte chemotactic responses in vitro toward the CXCR4 ligand CXCL12. In addition, mature WHIM CD8+ T cells preferentially home to and are retained in the bone marrow in mice in a cell-intrinsic manner. Administration of the specific CXCR4 antagonist AMD3100 (plerixafor) in mice rapidly and transiently corrected T cell lymphopenia and the CD4/CD8 ratio. After lymphocytic choriomeningitis virus infection, we found no difference in memory CD8+ T cell differentiation or viral load between wild-type and WHIM model mice. Thus, lymphopenia in WHIM syndrome may involve severe CXCR4-dependent CD8+ T cell deficiency resulting in part from sequestration in the primary lymphoid organs, thymus, and bone marrow.
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Affiliation(s)
- Shamik Majumdar
- Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, United States
| | - Sergio M. Pontejo
- Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, United States
| | - Hemant Jaiswal
- Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, United States
| | - Ji-Liang Gao
- Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, United States
| | - Abigail Salancy
- Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, United States
| | - Elizabeth Stassenko
- Laboratory of Cellular and Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, United States
| | - Hidehiro Yamane
- Laboratory of Cellular and Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, United States
| | - David H. McDermott
- Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, United States
| | - Karl Balabanian
- Université Paris-Cité, Institut de Recherche Saint-Louis, OPALE Carnot Institute, EMiLy, INSERM U1160, Paris, France
| | - Françoise Bachelerie
- Université Paris-Saclay, INSERM, Inflammation, Microbiome and Immunosurveillance, Orsay, France
| | - Philip M. Murphy
- Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, United States
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Majumdar S, Gao JL, Pontejo SM, Balabanian K, Bachelerie F, Murphy PM. Clinical and Hematologic Effects of Endotoxin in Warts, Hypogammaglobulinemia, Infections, and Myelokathexis Syndrome Model Mice. Immunohorizons 2022; 6:543-558. [PMID: 35882421 DOI: 10.4049/immunohorizons.2200042] [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: 07/06/2022] [Accepted: 07/06/2022] [Indexed: 11/19/2022] Open
Abstract
Warts, hypogammaglobulinemia, infections, and myelokathexis (WHIM) syndrome immunodeficiency is caused by autosomal dominant gain-of-function CXCR4 mutations that promote severe panleukopenia caused by bone marrow retention of mature leukocytes. Consequently, WHIM patients develop recurrent bacterial infections; however, sepsis is uncommon. To study this clinical dichotomy, we challenged WHIM model mice with LPS. The LD50 was similar in WHIM and wild-type (WT) mice, and LPS induced acute lymphopenia in WT mice that was Cxcr4 independent. In contrast, in WHIM mice, LPS did not affect circulating T cell levels, but the B cell levels anomalously increased because of selective, cell-intrinsic, and Cxcr4 WHIM allele-dependent emergence of Cxcr4high late pre-B cells, a pattern that was phenocopied by Escherichia coli infection. In both WT and WHIM mice, the CXCR4 antagonist AMD3100 rapidly increased circulating lymphocyte levels that then rapidly contracted after subsequent LPS treatment. Thus, LPS-induced lymphopenia is CXCR4 independent, and a WHIM mutation does not increase clinical LPS sensitivity. Anomalous WT Cxcr4-independent, but Cxcr4 WHIM-dependent, promobilizing effects of LPS on late pre-B cell mobilization reveal a distinct signaling pathway for the variant receptor.
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Affiliation(s)
- Shamik Majumdar
- Molecular Signaling Section, Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD
| | - Ji-Liang Gao
- Molecular Signaling Section, Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD
| | - Sergio M Pontejo
- Molecular Signaling Section, Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD
| | - Karl Balabanian
- Université Paris-Cité, Institut de Recherche Saint-Louis, OPALE Carnot Institute, EMiLy, INSERM U1160, Paris, France; and
| | - Françoise Bachelerie
- Université Paris-Saclay, INSERM, Inflammation, Microbiome and Immunosurveillance, Clamart, France
| | - Philip M Murphy
- Molecular Signaling Section, Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD;
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Li HZ, Gao JL, Yao HW. [Current status of research on short-term urogenital function after transanal total mesorectal excision and laparoscopic total mesorectal excision]. Zhonghua Wei Chang Wai Ke Za Zhi 2022; 25:552-557. [PMID: 35754222 DOI: 10.3760/cma.j.cn441530-20211130-00479] [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] [Indexed: 06/15/2023]
Abstract
Thanks to the new surgical approach, transanal total mesorectal excision (taTME) has a better operative field exposure than laparoscopic-assisted total mesorectal excision (laTME), especially for male patients with obesity, pelvic stenosis or prostate hypertrophy. Nevertheless, whether the urogenital function and quality of life after taTME are better as compared to laTME requires further study. According to the existing studies, taTME and laTME are not significantly different in symptoms of the urology system for male patients, but some large sample clinical studies show that the incidence of urethral mechanical injury after taTME is higher. Unfortunately, there is no elaboration on that for females. The sexual function of male patients after taTME and laTME is both impaired. The sexual function of male patients will be relieved to different degrees over time, but there is no significant difference. Compared with laTME, taTME shows advantages in the sexual function for female patients. There is no significant difference in short-term urogenital system function between taTME and laTME at present. As a new surgical approach, the impact on urogenital system function after taTME is acceptable. However, whether there is a significant difference in urogenital function between taTME and laTME needs further research. In addition, functional results still need comprehensive evaluation, and preoperative baseline evaluation also needs to be enhanced. The functional evaluation for male and female should be carried out separately rather than confused. Questionnaire for evaluation of functional results also needs to be verified.
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Affiliation(s)
- H Z Li
- Department of General Surgery, National Clinical Research Center for Digestive Diseases, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - J L Gao
- Department of General Surgery, National Clinical Research Center for Digestive Diseases, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - H W Yao
- Department of General Surgery, National Clinical Research Center for Digestive Diseases, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
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Li W, Liu C, Burns N, Hayashi J, Yoshida A, Sajja A, González-Hernández S, Gao JL, Murphy PM, Kubota Y, Zou YR, Nagasawa T, Mukouyama YS. Alterations in the spatiotemporal expression of the chemokine receptor CXCR4 in endothelial cells cause failure of hierarchical vascular branching. Dev Biol 2021; 477:70-84. [PMID: 34015362 DOI: 10.1016/j.ydbio.2021.05.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 01/02/2021] [Revised: 05/07/2021] [Accepted: 05/10/2021] [Indexed: 12/18/2022]
Abstract
The C-X-C chemokine receptor CXCR4 and its ligand CXCL12 play an important role in organ-specific vascular branching morphogenesis. CXCR4 is preferentially expressed by arterial endothelial cells, and local secretion of CXCL12 determines the organotypic pattern of CXCR4+ arterial branching. Previous loss-of-function studies clearly demonstrated that CXCL12-CXCR4 signaling is necessary for proper arterial branching in the developing organs such as the skin and heart. To further understand the role of CXCL12-CXCR4 signaling in organ-specific vascular development, we generated a mouse model carrying the Cre recombinase-inducible Cxcr4 transgene. Endothelial cell-specific Cxcr4 gain-of-function embryos exhibited defective vascular remodeling and formation of a hierarchical vascular branching network in the developing skin and heart. Ectopic expression of CXCR4 in venous endothelial cells, but not in lymphatic endothelial cells, caused blood-filled, enlarged lymphatic vascular phenotypes, accompanied by edema. These data suggest that CXCR4 expression is tightly regulated in endothelial cells for appropriate vascular development in an organ-specific manner.
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Affiliation(s)
- Wenling Li
- Laboratory of Stem Cell and Neuro-Vascular Biology, Cell and Development Biology Center, USA
| | - Chengyu Liu
- Transgenic Core, National Heart, Lung, and Blood Institute, USA
| | - Nathan Burns
- Laboratory of Stem Cell and Neuro-Vascular Biology, Cell and Development Biology Center, USA
| | - Jeffery Hayashi
- Laboratory of Stem Cell and Neuro-Vascular Biology, Cell and Development Biology Center, USA
| | - Atsufumi Yoshida
- Laboratory of Stem Cell and Neuro-Vascular Biology, Cell and Development Biology Center, USA
| | - Aparna Sajja
- Laboratory of Stem Cell and Neuro-Vascular Biology, Cell and Development Biology Center, USA
| | - Sara González-Hernández
- Laboratory of Stem Cell and Neuro-Vascular Biology, Cell and Development Biology Center, USA
| | - Ji-Liang Gao
- Molecular Signaling Section, Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Philip M Murphy
- Molecular Signaling Section, Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Yoshiaki Kubota
- Department of Anatomy, Institute for Advanced Medical Research, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan
| | - Yong-Rui Zou
- The Feinstein Institute for Medical Research, Center for Autoimmune and Musculoskeletal Diseases, Manhasset, NY 11030, USA
| | - Takashi Nagasawa
- Laboratory of Stem Cell Biology and Developmental Immunology, Graduate School of Frontier Biosciences, Graduate School of Medicine, Immunology Frontier Research Center, World Premier International Research Center, Osaka University, Osaka 565-0871, Japan
| | - Yoh-Suke Mukouyama
- Laboratory of Stem Cell and Neuro-Vascular Biology, Cell and Development Biology Center, USA.
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Gao JL, An YB, Yao HW, Zhang ZT. [The development process and new requirements of structured training on transanal total mesorectal resection]. Zhonghua Wai Ke Za Zhi 2021; 59:328-331. [PMID: 33915620 DOI: 10.3760/cma.j.cn112139-20200910-00695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Due to the technical difficulty and long learning curve, the benefits of Transanal total mesorectal excision may be obscured by surgical complications that arise from rapid, large-scale development, therefore the surgeons need to receive sufficient training before performing this surgery. At present, a mature structured training system has been formed, but the development of structured training has not met the needs of existing surgical development. In order to standardize the development of transanal total mesorectal excision, the European Society of Colorectal Diseases and 14 international surgical societies recently launched the "International Expert Consensus Guidelines for the Indication, Implementation and Quality Evaluation of Transanal Total Mesorectum Resection". The consensus involves the requirements for trainees, the content and process of training, as well as the evaluation and registration of training results. Training in cadaver is the core of structured training. Beginners should receive repeated training and conduct the surgery under the guidance of instructors.
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Affiliation(s)
- J L Gao
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University; Key Laboratory of Cancer Invasion and Metastasis Research & National Clinical Research Center for Digestive Diseases, Beijing; Clinical Practice and Research Center for Colorectal Cancer, Capital Medical University, Beijing 100050, China
| | - Y B An
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University; Key Laboratory of Cancer Invasion and Metastasis Research & National Clinical Research Center for Digestive Diseases, Beijing; Clinical Practice and Research Center for Colorectal Cancer, Capital Medical University, Beijing 100050, China
| | - H W Yao
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University; Key Laboratory of Cancer Invasion and Metastasis Research & National Clinical Research Center for Digestive Diseases, Beijing; Clinical Practice and Research Center for Colorectal Cancer, Capital Medical University, Beijing 100050, China
| | - Z T Zhang
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University; Key Laboratory of Cancer Invasion and Metastasis Research & National Clinical Research Center for Digestive Diseases, Beijing; Clinical Practice and Research Center for Colorectal Cancer, Capital Medical University, Beijing 100050, China
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10
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Gao JL, Weaver JD, Tuo J, Wang LQ, Siwicki M, Despres D, Lizak M, Schneider EH, Kovacs W, Maminishkis A, Chen K, Yoshimura T, Ming Wang J, Chao Chan C, Murphy PM. Leukocyte chemotactic receptor Fpr1 protects against aging-related posterior subcapsular cataract formation. FASEB J 2021; 35:e21315. [PMID: 33538366 PMCID: PMC11005932 DOI: 10.1096/fj.202002135r] [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: 09/17/2020] [Revised: 12/11/2020] [Accepted: 12/14/2020] [Indexed: 11/11/2022]
Abstract
Cataracts are a common consequence of aging; however, pathogenesis remains poorly understood. Here, we observed that after 3 months of age mice lacking the G protein-coupled leukocyte chemotactic receptor Fpr1 (N-formyl peptide receptor 1) began to develop bilateral posterior subcapsular cataracts that progressed to lens rupture and severe degeneration, without evidence of either systemic or local ocular infection or inflammation. Consistent with this, Fpr1 was detected in both mouse and human lens in primary lens epithelial cells (LECs), the only cell type present in the lens; however, expression was confined to subcapsular LECs located along the anterior hemispheric surface. To maximize translucency, LECs at the equator proliferate and migrate posteriorly, then differentiate into lens fiber cells by nonclassical apoptotic signaling, which results in loss of nuclei and other organelles, including mitochondria which are a rich source of endogenous N-formyl peptides. In this regard, denucleation and posterior migration of LECs were abnormal in lenses from Fpr1-/- mice, and direct stimulation of LECs with the prototypic N-formyl peptide agonist fMLF promoted apoptosis. Thus, Fpr1 is repurposed beyond its immunoregulatory role in leukocytes to protect against cataract formation and lens degeneration during aging.
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Affiliation(s)
- Ji-Liang Gao
- Molecular Signaling Section, Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892
| | - Joseph D. Weaver
- Molecular Signaling Section, Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892
| | - Jingsheng Tuo
- Laboratory of Immunology, National Eye Institute, National Institutes of Health, Bethesda, MD 20892
| | - Long Q. Wang
- Molecular Signaling Section, Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892
| | - Marie Siwicki
- Molecular Signaling Section, Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892
| | - Daryl Despres
- Mouse Imaging Facility, National Institutes of Health, Bethesda, MD 20892
| | - Martin Lizak
- Mouse Imaging Facility, National Institutes of Health, Bethesda, MD 20892
| | - Erich H. Schneider
- Molecular Signaling Section, Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892
| | - William Kovacs
- Molecular Signaling Section, Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892
| | - Arvydas Maminishkis
- Section on Epithelial and Retinal Physiology and Disease, National Eye Institute, National Institutes of Health, Bethesda, MD 20892
| | - Keqiang Chen
- Laboratory of Cancer and ImmunoMetabolism, Center for Cancer Research, National Cancer Institute at Frederick, Frederick, MD 21702
| | - Teizo Yoshimura
- Department of Pathology and Experimental Medicine, Okayama University, Okayama 700-8558, Japan
| | - Ji Ming Wang
- Laboratory of Cancer and ImmunoMetabolism, Center for Cancer Research, National Cancer Institute at Frederick, Frederick, MD 21702
| | - Chi Chao Chan
- Laboratory of Immunology, National Eye Institute, National Institutes of Health, Bethesda, MD 20892
| | - Philip M. Murphy
- Molecular Signaling Section, Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892
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11
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Chen H, Ye B, Wang L, Wei YX, Dai JM, Gao JL, Wang F, Fu H. [Moderating effect of sense of coherence between occupational stress and depression]. Zhonghua Yu Fang Yi Xue Za Zhi 2020; 54:844-848. [PMID: 32842313 DOI: 10.3760/cma.j.cn112150-20200602-00806] [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: 11/05/2022]
Abstract
Objective: To explore the moderating effect of sense of coherence in the relationship between occupational stress and depression. Methods: From June to September in 2018, migrant workers were purposively selected from the urban (including office buildings, shopping malls, barber shops or restaurants and other service enterprises) and suburban (including microelectronics, internet, clothing processing and art design and other factories) areas of Shanghai. A total of 3 034 people were investigated and 2 573 valid questionnaires were collected. Patient health questionnaire (PHQ), sense of coherence questionnaire (SOC) and job content questionnaire (JCQ) were used to investigate the levels depression, sense of coherence and occupational stress. Hierarchical regression analysis was used to analyze the moderating effect of sense of coherence on occupational stress and depression, and SPSS PROCESS macro program and Bootstrap method were used to further explore the moderating effect of sense of coherence. Results: The age of total 2 573 migrant workers was (28.24±7.33) years old and 49.79% of them were males. The scores of depression, occupational stress and sense of coherence were 6.67±4.74, 28.45±4.38 and 62.02±10.89, respectively. The depression level was positively correlated with occupational stress (r=0.33, P=0.007), and negatively correlated with sense of coherence (r=-0.53, P=0.003). The hierarchy regression analysis suggested that the interaction between occupational stress and sense of coherence was associated with depression symptom (β=-0.07, P=0.001). Bootstrap analysis showed that occupational stress was not associated with depression symptom with high level of sense of sense of coherence (β=0.04, 95%CI=-0.01-0.10), while occupational stress was associated with depression symptom with low level of sense of sense of coherence (β=0.19, 95%CI=0.14-0.23). Conclusion: The high level of sense of coherence has a moderating effect on the relationship between occupational stress and depressive symptoms, while the low level of sense of coherence does not have this effect.
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Affiliation(s)
- H Chen
- Department of Preventive Medicine, School of Public Health, Fudan University, Shanghai 200032, China
| | - B Ye
- Department of Preventive Medicine, School of Public Health, Fudan University, Shanghai 200032, China
| | - L Wang
- Department of Preventive Medicine, School of Public Health, Fudan University, Shanghai 200032, China
| | - Y X Wei
- Department of Preventive Medicine, School of Public Health, Fudan University, Shanghai 200032, China
| | - J M Dai
- Department of Preventive Medicine, School of Public Health, Fudan University, Shanghai 200032, China
| | - J L Gao
- Department of Preventive Medicine, School of Public Health, Fudan University, Shanghai 200032, China
| | - F Wang
- Department of Political Science, School of Humanities and Social Sciences, Huadong Normal University, Shanghai 200241, China
| | - H Fu
- Department of Preventive Medicine, School of Public Health, Fudan University, Shanghai 200032, China
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12
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Sun R, Gao JL, Chen H, Liu S, Tang ZZ. [CbCYP716A261, a New β-Amyrin 28-Hydroxylase Involved in Conyzasaponin Biosynthesis from Conyza blinii]. Mol Biol (Mosk) 2020; 54:813-825. [PMID: 33009791 DOI: 10.31857/s0026898420050092] [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: 02/08/2020] [Accepted: 03/13/2020] [Indexed: 06/11/2023]
Abstract
Conyzasaponins produced by the traditional Chinese herb Conyza blinii are oleanane-type saponins with a wide range of biological activities. Here, we identified a gene, designated CbCYP716A261, encoding a β-amyrin 28-hydroxylase in conyzasaponins biosynthesis. Ten full putative CYP sequences were isolated from Conyza blinii transcript tags. The CbCYP716A261 gene product was selected as the putative β-amyrin 28-hydroxylase by phylogenetic analysis and transcriptional activity analysis of methyl jasmonate-treated Conyza blinii. To identify the enzymatic activity, we performed enzymatic activity experiments in vitro and in vivo. The HPLC results revealed that CbCYP716A261 catalyzes the hydroxylation of β-amyrin at the C-28 position to yield oleanolic acid. Our findings provide new information about the conyzasaponin biosynthesis pathway and widen the list of isolated β-amyrin 28-hydroxylases.
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Affiliation(s)
- R Sun
- College of Life Science, Sichuan Agricultural University, Ya'an, Sichuan, 625014 China
- College of Biological and Chemical Engineering, Panzhihua University, Panzhihua, Sichuan, 617000 China
| | - J L Gao
- College of Biological and Chemical Engineering, Panzhihua University, Panzhihua, Sichuan, 617000 China
| | - H Chen
- College of Life Science, Sichuan Agricultural University, Ya'an, Sichuan, 625014 China
| | - S Liu
- College of Biological and Chemical Engineering, Panzhihua University, Panzhihua, Sichuan, 617000 China
| | - Z Z Tang
- College of Life Science, Sichuan Agricultural University, Ya'an, Sichuan, 625014 China
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13
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Gao JL, An YB, Wang D, Yao HW, Zhang ZT. [Current status of research on short-term quality of life after sphincteric-saving surgery in rectal cancer patients]. Zhonghua Wei Chang Wai Ke Za Zhi 2020; 23:415-420. [PMID: 32306613 DOI: 10.3760/cma.j.cn.441530-20190525-00219] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Sphincteric-saving surgery (SSS) is currently a hot spot in the treatment of mid-low rectal cancer. Although it preserves the anatomical continuity of the colon and anus, the postoperative functional outcomes and quality of life (QOL) remains to be confirmed. Current studies have shown that quality of life worsens at the first month after surgery, improves within 3-6 months, and stabilizes at about 1 year. The QOL was associated with patient-related factors, tumor-related factors, treatment-related factors and postoperative complications. For patient-related factors, younger patients have worse role function and sexual function but better cognitive function and physical function. Male patients deteriorate significantly in sexual and social function. For tumor-related factors, patients with lower rectal cancer have poorer defecation function. Those with advanced rectal cancer are more likely to suffer from side-effects related to chemotherapy. For treatment-related factors, patients undergoing intersphincteric resection have worse role function, body image and sexual interest. Preventive ileostomy results in the deterioration of role function, body image and sexual interest. Chemotherapy causes taste changes and chest pain. For postoperative complication, patients with anastomotic leakage have worse bowel function and psychological state. Patients with major low anterior resection syndrome and genitourinary dysfunction have worse global health score, social function and role function. In conclusion, short-term quality of life after sphincteric-saving surgery is acceptable. To improve QOL, specific intervention and guidance should be given to patients in this stage. Meanwhile, since many factors influence the quality of life simultaneously, researchers are confused about the questionnaire outcomes. Therefore, more specific and comprehensive tools are needed to evaluate QQL after sphincteric-saving surgery.
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Affiliation(s)
- J L Gao
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, Key Laboratory of Cancer Invasion and Metastasis Research & National Clinical Research Center for Digestive Diseases, Beijing 100050, China
| | - Y B An
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, Key Laboratory of Cancer Invasion and Metastasis Research & National Clinical Research Center for Digestive Diseases, Beijing 100050, China
| | - D Wang
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, Key Laboratory of Cancer Invasion and Metastasis Research & National Clinical Research Center for Digestive Diseases, Beijing 100050, China
| | - H W Yao
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, Key Laboratory of Cancer Invasion and Metastasis Research & National Clinical Research Center for Digestive Diseases, Beijing 100050, China
| | - Z T Zhang
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, Key Laboratory of Cancer Invasion and Metastasis Research & National Clinical Research Center for Digestive Diseases, Beijing 100050, China
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14
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Zhang M, Gao JL, Chen K, Yoshimura T, Liang W, Gong W, Li X, Huang J, McDermott DH, Murphy PM, Wang X, Wang JM. A Critical Role of Formyl Peptide Receptors in Host Defense against Escherichia coli. J Immunol 2020; 204:2464-2473. [PMID: 32221037 DOI: 10.4049/jimmunol.1900430] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Accepted: 02/12/2020] [Indexed: 11/19/2022]
Abstract
Formyl peptide receptors (FPRs, mouse Fprs) belong to the G protein-coupled receptor superfamily and mediate phagocyte migration in response to bacteria- and host-derived chemoattractants; however, knowledge about their in vivo roles in bacterial pathogenesis is limited. In this study, we investigated the role of Fpr1 and Fpr2 in host defense against Escherichia coli infection. In vitro, we found that supernatants from E. coli cultures induced chemotaxis of wild-type (WT) mouse bone marrow-derived neutrophils and that the activity was significantly reduced in cells genetically deficient in either Fpr1 or Fpr2 and was almost absent in cells lacking both receptors. Consistent with this, E. coli supernatants induced chemotaxis and MAPK phosphorylation in HEK293 cells expressing either recombinant Fpr1 or Fpr2 but not untransfected parental cells. WT bone marrow -derived neutrophils could actively phagocytose and kill E. coli, whereas both activities were diminished in cells lacking Fpr1 or Fpr2; again, an additive effect was observed in cells lacking both receptors. In vivo, Fpr1 and Fpr2 deficiency resulted in reduced recruitment of neutrophils in the liver and peritoneal cavity of mice infected with inactivated E. coli Moreover, Fpr1-/- and Fpr2-/- mice had significantly increased mortality compared with WT mice after i.p. challenge with a virulent E. coli clinical isolate. These results indicate a critical role of Fprs in host defense against E. coli infection.
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Affiliation(s)
- Meihua Zhang
- Key Laboratory of Birth Regulation and Control Technology of National Health Commission of China, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250002, People's Republic of China.,Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute at Frederick, Frederick, MD 21702
| | - Ji-Liang Gao
- Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, Bethesda, MD 20892
| | - Keqiang Chen
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute at Frederick, Frederick, MD 21702
| | - Teizo Yoshimura
- Department of Pathology and Experimental Medicine, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8558, Japan
| | - Weiwei Liang
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute at Frederick, Frederick, MD 21702.,Department of Immunology, School of Basic Medical Sciences and Key Laboratory of Medical Immunology of Ministry of Health, Peking University Health Science Center, Beijing 100191, People's Republic of China; and
| | - Wanghua Gong
- Basic Research Program, Leidos Biomedical Research, Inc., Frederick, MD 21702
| | - Xiaoqing Li
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute at Frederick, Frederick, MD 21702
| | - Jiaqiang Huang
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute at Frederick, Frederick, MD 21702
| | - David H McDermott
- Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, Bethesda, MD 20892
| | - Philip M Murphy
- Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, Bethesda, MD 20892
| | - Xietong Wang
- Key Laboratory of Birth Regulation and Control Technology of National Health Commission of China, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250002, People's Republic of China;
| | - Ji Ming Wang
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute at Frederick, Frederick, MD 21702;
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Itagaki K, Kaczmarek E, Kwon WY, Chen L, Vlková B, Zhang Q, Riça I, Yaffe MB, Campbell Y, Marusich MF, Wang JM, Gong WH, Gao JL, Jung F, Douglas G, Otterbein LE, Hauser CJ. Formyl Peptide Receptor-1 Blockade Prevents Receptor Regulation by Mitochondrial Danger-Associated Molecular Patterns and Preserves Neutrophil Function After Trauma. Crit Care Med 2020; 48:e123-e132. [PMID: 31939811 PMCID: PMC7337247 DOI: 10.1097/ccm.0000000000004094] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [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] [Indexed: 11/26/2022]
Abstract
OBJECTIVES Trauma predisposes to systemic sterile inflammation (systemic inflammatory response syndrome) as well as infection, but the mechanisms linking injury to infection are poorly understood. Mitochondrial debris contains formyl peptides. These bind formyl peptide receptor-1, trafficking neutrophils to wounds, initiating systemic inflammatory response syndrome, and wound healing. Bacterial formyl peptides, however, also attract neutrophils via formyl peptide receptor-1. Thus, mitochondrial formyl peptides might suppress neutrophils antimicrobial function. Also, formyl peptide receptor-1 blockade used to mitigate systemic inflammatory response syndrome might predispose to sepsis. We examined how mitochondrial formyl peptides impact neutrophils functions contributing to antimicrobial responses and how formyl peptide receptor-1 antagonists affect those functions. DESIGN Prospective study of human and murine neutrophils and clinical cohort analysis. SETTING University research laboratory and level 1 trauma center. PATIENTS Trauma patients, volunteer controls. ANIMAL SUBJECTS C57Bl/6, formyl peptide receptor-1, and formyl peptide receptor-2 knockout mice. INTERVENTIONS Human and murine neutrophils functions were activated with autologous mitochondrial debris, mitochondrial formyl peptides, or bacterial formyl peptides followed by chemokines or leukotrienes. The experiments were repeated using formyl peptide receptor-1 antagonist cyclosporin H, "designer" human formyl peptide receptor-1 antagonists (POL7178 and POL7200), or anti-formyl peptide receptor-1 antibodies. Mouse injury/lung infection model was used to evaluate effect of formyl peptide receptor-1 inhibition. MEASUREMENTS AND MAIN RESULTS Human neutrophils cytosolic calcium, chemotaxis, reactive oxygen species production, and phagocytosis were studied before and after exposure to mitochondrial debris, mitochondrial formyl peptides, and bacterial formyl peptides. Mitochondrial formyl peptide and bacterial formyl peptides had similar effects on neutrophils. Responses to chemokines and leukotrienes were suppressed by prior exposure to formyl peptides. POL7200 and POL7178 were specific antagonists of human formyl peptide receptor-1 and more effective than cyclosporin H or anti-formyl peptide receptor-1 antibodies. Formyl peptides inhibited mouse neutrophils responses to chemokines only if formyl peptide receptor-1 was present. Formyl peptide receptor-1 blockade did not inhibit neutrophils bacterial phagocytosis or reactive oxygen species production. Cyclosporin H increased bacterial clearance in lungs after injury. CONCLUSIONS Formyl peptides both activate and desensitize neutrophils. Formyl peptide receptor-1 blockade prevents desensitization, potentially both diminishing systemic inflammatory response syndrome and protecting the host against secondary infection after tissue trauma or primary infection.
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Affiliation(s)
| | | | - Woon Yong Kwon
- Beth Israel Deaconess Medical Center/Harvard Medical School
- Seoul National University Hospital, South Korea
| | - Li Chen
- Beth Israel Deaconess Medical Center/Harvard Medical School
- PLA General Hospital, Beijing, China
| | - Barbora Vlková
- Beth Israel Deaconess Medical Center/Harvard Medical School
- Comenius University, Bratislava, Slovakia
| | - Quanzhi Zhang
- Beth Israel Deaconess Medical Center/Harvard Medical School
- Harbin Medical School, Daqing, China
| | | | | | | | | | | | | | - Ji-Liang Gao
- National Institute of Allergy and Infectious Diseases/NIH
| | | | | | | | - Carl J. Hauser
- Beth Israel Deaconess Medical Center/Harvard Medical School
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Gao JL, Owusu-Ansah A, Paun A, Beacht K, Yim E, Siwicki M, Yang A, Liu Q, McDermott DH, Murphy PM. Low-level Cxcr4-haploinsufficient HSC engraftment is sufficient to correct leukopenia in WHIM syndrome mice. JCI Insight 2019; 4:132140. [PMID: 31687976 DOI: 10.1172/jci.insight.132140] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [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: 07/28/2019] [Accepted: 10/29/2019] [Indexed: 01/13/2023] Open
Abstract
Warts, hypogammaglobulinemia, infections, and myelokathexis (WHIM) syndrome immunodeficiency is caused by autosomal dominant gain-of-function mutations in chemokine receptor CXCR4. Patient WHIM-09 was spontaneously cured by chromothriptic deletion of 1 copy of 164 genes, including the CXCR4WHIM allele, presumably in a single hematopoietic stem cell (HSC) that repopulated HSCs and the myeloid lineage. Testing the specific contribution of CXCR4 hemizygosity to her cure, we previously demonstrated enhanced engraftment of Cxcr4+/o HSCs after transplantation in WHIM (Cxcr4+/w) model mice, but the potency was not quantitated. We now report graded-dose competitive transplantation experiments using lethally irradiated Cxcr4+/+ recipients in which mixed BM cells containing approximately 5 Cxcr4+/o HSCs and a 100-fold excess of Cxcr4+/w HSCs achieved durable 50% Cxcr4+/o myeloid and B cell chimerism in blood and approximately 20% Cxcr4+/o HSC chimerism in BM. In Cxcr4+/o/Cxcr4+/w parabiotic mice, we observed 80%-100% Cxcr4+/o myeloid and lymphoid chimerism in the blood and 15% Cxcr4+/o HSC chimerism in BM from the Cxcr4+/w parabiont, which was durable after separation from the Cxcr4+/o parabiont. Thus, CXCR4 haploinsufficiency likely significantly contributed to the selective repopulation of HSCs and the myeloid lineage from a single chromothriptic HSC in WHIM-09. Moreover, the results suggest that WHIM allele silencing of patient HSCs is a viable gene therapy strategy.
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Affiliation(s)
- Ji-Liang Gao
- Molecular Signaling Section, Laboratory of Molecular Immunology, and
| | | | - Andrea Paun
- Intracellular Parasite Biology Section, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, NIH, Bethesda, Maryland, USA
| | - Kimberly Beacht
- Intracellular Parasite Biology Section, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, NIH, Bethesda, Maryland, USA
| | - Erin Yim
- Molecular Signaling Section, Laboratory of Molecular Immunology, and
| | - Marie Siwicki
- Molecular Signaling Section, Laboratory of Molecular Immunology, and
| | - Alexander Yang
- Molecular Signaling Section, Laboratory of Molecular Immunology, and
| | - Qian Liu
- Molecular Signaling Section, Laboratory of Molecular Immunology, and
| | - David H McDermott
- Molecular Signaling Section, Laboratory of Molecular Immunology, and
| | - Philip M Murphy
- Molecular Signaling Section, Laboratory of Molecular Immunology, and
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18
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Shu C, Dai JM, Wu N, Zhang D, Cheng R, Yu HB, Gao JL, Fu H, Sun CX. [Mediating effect of work engagement between job stress and depressive symptoms in State Grid employees]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2018; 36:257-259. [PMID: 29996244 DOI: 10.3760/cma.j.issn.1001-9391.2018.04.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the relationship between job stress, work engagement and depressive symptoms of State Grid workers, and to analyze the mediating effect of work engagement between job stress and depressive symptoms. Methods: A cross-sectional survey was conducted to investigate 845 employees from a State Grid company, using the brief job stress questionnaire, the Patient Health Questionnaire (PHQ-9) and 9-item Utrecht Work Engagement Scale (UWES-9) in March 2017. Results: The average score of work engagement was 4.49±1.42, the mean value of job stress was 1.15±0.33, the average score of depressive symptoms was 6.44±4.30, and the positive rate of depressive symptoms was 66.9%.There was a negative correlation between work engagement with both job stress and depressive symptoms (r=-0.193, -0.397, both P<0.01) , and job stress was positively correlated with depressive symptoms (r=0.260, P<0.01) . The relationship between job stress and depressive symptoms was partly mediated by work engagement, and the mediating effect accounted for 27.2% of the total effect. Conclusion: The work engagement of State Grid staff acts as the mediator between job stress and depressive symptoms, alleviating the depressive symptoms caused by job stress.
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Affiliation(s)
- C Shu
- School of Public Health, Key Lab of Public Health Safety of the Ministry of Education, Fudan University, Shanghai 200032, China
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Li Z, Dai JM, Zhang D, Shu C, Wu N, Gao JL, Sun CX, Fu H. [Association between Long Working Hours and Job Stress and Depression among Employees from a State Grid Company]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2018; 36:271-274. [PMID: 29996248 DOI: 10.3760/cma.j.issn.1001-9391.2018.04.009] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: This study was to understand the current situation of long working hours and identify the association of long working hours and job stress and depression among workers from one district company of state grid. Methods: The project was done with the cross-sectional survey. All questionnaires were completed by self-administered with informed consent. Employees' weekly working hours was reported by themselves; Using the PHQ-9 scale to assess depression, the JDC Model to evaluate job stress, and SPSS software to analyze data, the single factor chi-square test and multivariate Logistic analysis were performed to identify the association between long working hours and job stress, depression. Results: there were 35.3 percent employees with over 44 hours a week. The association between increasing weekly working hours and job stress and depression was statistically significant. Compared to the reference group (≤44 h) , for those who worked more than 44 hours per week, the odds ratio of job stress was 2.02 (95%CI=1.27-3.23) times increased, and the odds ratio of depression was 1.60 (95%CI=1.01-2.55) times increased, especially for those (≥60 h) , the odds ratio was 3.69 (95%CI=1.45-9.41) and 2.76 (95%CI=1.09-7.03) respectively. Conclusion: Long working hours can significantly increase the risk of job stress and depression among workers. When their weekly working hours exceeds 60, long working hours will be the independent risk factor for both job stress and depression.
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Affiliation(s)
- Z Li
- School of Public Health, Institute of Health Communication, Key Lab of Public Health Safety of Ministry of Education, Collaborative Innovation Center of Health Risk Early Warning and Governance, Fudan University, Shanghai 200032, China
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Gao JL, Yim E, Siwicki M, Yang A, Liu Q, Azani A, Owusu-Ansah A, McDermott DH, Murphy PM. Cxcr4-haploinsufficient bone marrow transplantation corrects leukopenia in an unconditioned WHIM syndrome model. J Clin Invest 2018; 128:3312-3318. [PMID: 29715199 DOI: 10.1172/jci120375] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Accepted: 04/27/2018] [Indexed: 02/06/2023] Open
Abstract
For gene therapy of gain-of-function autosomal dominant diseases, either correcting or deleting the disease allele is potentially curative. To test whether there may be an advantage of one approach over the other for WHIM (warts, hypogammaglobulinemia, infections, and myelokathexis) syndrome - a primary immunodeficiency disorder caused by gain-of-function autosomal dominant mutations in chemokine receptor CXCR4 - we performed competitive transplantation experiments using both lethally irradiated WT (Cxcr4+/+) and unconditioned WHIM (Cxcr4+/w) recipient mice. In both models, hematopoietic reconstitution was markedly superior using BM cells from donors hemizygous for Cxcr4 (Cxcr4+/o) compared with BM cells from Cxcr4+/+ donors. Remarkably, only approximately 6% Cxcr4+/o hematopoietic stem cell (HSC) chimerism after transplantation in unconditioned Cxcr4+/w recipient BM supported more than 70% long-term donor myeloid chimerism in blood and corrected myeloid cell deficiency in blood. Donor Cxcr4+/o HSCs differentiated normally and did not undergo exhaustion as late as 465 days after transplantation. Thus, disease allele deletion resulting in Cxcr4 haploinsufficiency was superior to disease allele repair in a mouse model of gene therapy for WHIM syndrome, allowing correction of leukopenia without recipient conditioning.
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Liao B, Dong G, Ma Y, Gao JL. Linear-shear-current modified Schrödinger equation for gravity waves in finite water depth. Phys Rev E 2017; 96:043111. [PMID: 29347471 DOI: 10.1103/physreve.96.043111] [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: 03/07/2017] [Indexed: 06/07/2023]
Abstract
A nonlinear Schrödinger equation for the propagation of two-dimensional surface gravity waves on linear shear currents in finite water depth is derived. In the derivation, linear shear currents are assumed to be a linear combination of depth-uniform currents and constant vorticity. Therefore, the equation includes the combined effects of depth-uniform currents and constant vorticity. Next, using the equation, the properties of the modulational instability of gravity waves on linear shear currents are investigated. It is showed that shear currents significantly modify the modulational instability properties of weakly nonlinear waves. Furthermore, the influence of linear shear currents on Peregrine breather which can be seen as a prototype of freak waves is also studied. It is demonstrated that depth-uniform opposing currents can reduce the breather extension in both the time and spatial domain in intermediate water depth, but following currents has the adverse impact, indicating that a wave packets with freak waves formed on following currents contain more hazardous waves in finite water depth. However, the corresponding and coexisting vorticity can counteract the influence of currents. Additionally, if the water depth is deep enough, shear currents have negligible effect on the characteristics of Peregrine breathers.
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Affiliation(s)
- B Liao
- State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116023, China
| | - G Dong
- State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116023, China
| | - Y Ma
- State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116023, China
| | - J L Gao
- School of Naval Architecture and Ocean Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China
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Heusinkveld LE, Yim E, Yang A, Azani AB, Liu Q, Gao JL, McDermott DH, Murphy PM. Pathogenesis, diagnosis and therapeutic strategies in WHIM syndrome immunodeficiency. Expert Opin Orphan Drugs 2017; 5:813-825. [PMID: 29057173 DOI: 10.1080/21678707.2017.1375403] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
21 INTRODUCTION WHIM syndrome is a rare combined primary immunodeficiency disorder caused by autosomal dominant gain-of-function mutations in the chemokine receptor CXCR4. It is the only Mendelian condition known to be caused by mutation of a chemokine or chemokine receptor. As such, it provides a scientific opportunity to understand chemokine-dependent immunoregulation in humans and a medical opportunity to develop mechanism-based treatment and cure strategies. 22 AREAS COVERED This review covers the clinical features, genetics, immunopathogenesis and clinical management of WHIM syndrome. Clinical trials of targeted therapeutic agents and potential cure strategies are also included. 23 EXPERT OPINION WHIM syndrome may be particularly amenable to mechanism-based therapeutics for three reasons: 1) CXCR4 has been validated as the molecular target in the disease by Mendelian genetics; 2) the biochemical abnormality is excessive CXCR4 signaling; and 3) antagonists selective for CXCR4 have been developed. Plerixafor is FDA-approved for hematopoietic stem cell (HSC) mobilization and has shown preliminary safety and efficacy in phase I clinical trials in WHIM syndrome. Gene editing may represent a viable cure strategy, since chromothriptic deletion of the disease allele in HSCs resulted in clinical cure of a patient and because CXCR4 haploinsufficiency enhances engraftment of transplanted HSCs in mice.
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Affiliation(s)
- Lauren E Heusinkveld
- Laboratory of Molecular Immunology, Bldg 10, Room 11N113, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892
| | - Erin Yim
- Laboratory of Molecular Immunology, Bldg 10, Room 11N113, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892
| | - Alexander Yang
- Laboratory of Molecular Immunology, Bldg 10, Room 11N113, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892
| | - Ari B Azani
- Laboratory of Molecular Immunology, Bldg 10, Room 11N113, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892
| | - Qian Liu
- Laboratory of Molecular Immunology, Bldg 10, Room 11N113, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892
| | - Ji-Liang Gao
- Laboratory of Molecular Immunology, Bldg 10, Room 11N113, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892
| | - David H McDermott
- Laboratory of Molecular Immunology, Bldg 10, Room 11N113, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892
| | - Philip M Murphy
- Laboratory of Molecular Immunology, Bldg 10, Room 11N113, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892
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23
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Pang YJ, Chen XH, Zhang JY, Dong Z, Wu SF, Zhang FF, Gao JL. [Prophylactic thyroidectomy in two children indentified RET germline mutations with multiple endocrine neoplasia type 2A]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2017; 52:536-538. [PMID: 28728245 DOI: 10.3760/cma.j.issn.1673-0860.2017.07.012] [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: 11/05/2022]
Affiliation(s)
- Y J Pang
- Department of Endocrinology, Kailuan General Hospital, North China University of Science and Technology, Tangshan 063000, China
| | - X H Chen
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - J Y Zhang
- Department of Endocrinology, Kailuan General Hospital, North China University of Science and Technology, Tangshan 063000, China
| | - Z Dong
- Department of Endocrinology, Kailuan General Hospital, North China University of Science and Technology, Tangshan 063000, China
| | - S F Wu
- Department of Endocrinology, Kailuan General Hospital, North China University of Science and Technology, Tangshan 063000, China
| | - F F Zhang
- Department of Endocrinology, Kailuan General Hospital, North China University of Science and Technology, Tangshan 063000, China
| | - J L Gao
- Department of ICU, Kailuan General Hospital, North China University of Science and Technology, Tangshan 063000, China
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Pang YJ, Chen XH, Zhang JY, Gao JL. [Clinical treatment of metastatic papillary thyroid carcinoma in cervical lymph nodal with occult primary sites]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2017; 31:1013-1016. [PMID: 29798166 DOI: 10.13201/j.issn.1001-1781.2017.13.011] [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] [Received: 05/14/2017] [Indexed: 11/12/2022]
Abstract
Objective:To discuss the diagnosis, treatment and prognosis of metastatic papillary thyroid carcinoma in cervical lymph nodal with occult primary sites. Method:The clinical data of 5 patients involved papillary thyroid carcinoma with cervical lymph nodal metastasis with occult primary sites from 2009 to 2015 were analyzed. Result:According to preoperation examinations, two of them only underwent neck lymph node resection and three patients underwent asubtotal or total thyroidectomy plus neck lymph node dissection. All the pathological results showed that there were metastatic papillary thyroid carcinoma in cervical lymph nodal, but the primary sites of thyroid tissue were normal. After 1 to 7 year follow-up, there was no recurrence. Conclusion:Whether to take the thyroidectomy need to be carefully considered thyroidectomy in patients with metastatic papillary thyroid carcinoma in cervical lymph nodal with occult primary sites.
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Affiliation(s)
- Y J Pang
- Department of Endocrinology, Kailuan General Hospital, North China University of Technology, Tangshan, 063000, China
| | - X H Chen
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University
| | - J Y Zhang
- Department of Endocrinology, Kailuan General Hospital, North China University of Technology, Tangshan, 063000, China
| | - J L Gao
- Department of Endocrinology, Kailuan General Hospital, North China University of Technology, Tangshan, 063000, China
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Jones KR, Choi U, Gao JL, Thompson RD, Rodman LE, Malech HL, Kang EM. A Novel Method for Screening Adenosine Receptor Specific Agonists for Use in Adenosine Drug Development. Sci Rep 2017; 7:44816. [PMID: 28317879 PMCID: PMC5357845 DOI: 10.1038/srep44816] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Accepted: 02/15/2017] [Indexed: 12/19/2022] Open
Abstract
Agonists that target the A1, A2A, A2B and A3 adenosine receptors have potential to be potent treatment options for a number of diseases, including autoimmune diseases, cardiovascular disease and cancer. Because each of these adenosine receptors plays a distinct role throughout the body, obtaining highly specific receptor agonists is essential. Of these receptors, the adenosine A2AR and A2BR share many sequence and structural similarities but highly differ in their responses to inflammatory stimuli. Our laboratory, using a combination of specially developed cell lines and calcium release analysis hardware, has created a new and faster method for determining specificity of synthetic adenosine agonist compounds for the A2A and A2B receptors in human cells. A2A receptor expression was effectively removed from K562 cells, resulting in the development of a distinct null line. Using HIV-lentivector and plasmid DNA transfection, we also developed A2A and A2B receptor over-expressing lines. As adenosine is known to cause changes in intracellular calcium levels upon addition to cell culture, calcium release can be determined in these cell lines upon compound addition, providing a functional readout of receptor activation and allowing us to isolate the most specific adenosine agonist compounds.
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Affiliation(s)
- Karlie R. Jones
- Laboratory of Host Defenses, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda MD 20892, USA
| | - Uimook Choi
- Laboratory of Host Defenses, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda MD 20892, USA
| | - Ji-Liang Gao
- Molecular Signaling Section, Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda MD 20892, USA
| | | | - Larry E. Rodman
- Lewis and Clark Pharmaceuticals Inc., Charlottesville, VA 22901, USA
| | - Harry L. Malech
- Laboratory of Host Defenses, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda MD 20892, USA
| | - Elizabeth M. Kang
- Laboratory of Host Defenses, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda MD 20892, USA
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26
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Gao JL, Zhu MY, An N, Fu H. [Workplace social capital and intention to stay among Chinese nurses: a structural equation model]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2017; 35:111-114. [PMID: 28355698 DOI: 10.3760/cma.j.issn.1001-9391.2017.02.007] [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] [Indexed: 06/06/2023]
Abstract
Objective: To explore a model that workplace social capital is associated with intention to stay (ITS) in the nursing profession and that this association is partially mediated by organizational commitment, job satisfaction, and job stress among Chinese nurses. Methods: A cross-sectional, observationalstudy was conducted in Shanghai, China between September and December 2014. Two thousandforty-two nurses from 23 healthcare organizations were recruited for the current study using a two-stage sampling process.Intention to stay, workplace social capital, job satisfaction, organizational commitment, and job stress was measured by validated scale. Measured variable path analysis (MVPA) was used to test their hypothesized relationships. Results: There were significant positive direct effects from workplace social capital (β=0.11, P<0.01) , organizational commitment (β=0.81, P<0.01) and job satisfaction (β=0.03, P<0.01) to ITS, and a negative direct effects from job strain to ITS (β=-0.03, P<0.01) . The model explained 84% of the variability in ITS. Additionally, workplace social capital had significant positive direct effects on organizational commitment (β=0.65, P<0.01) , job satisfaction (β=0.44, P<0.01) and negative direct effects on job strain (β=-0.35, P<0.01) . The indirect effect of social capital to ITS was 0.55. Job satisfaction was positively associated with organizational commitment (r=0.47, P<0.01) , and negtively associated with job stress (r=-0.12, P<0.01) . Job stress was negtively associated with organizational commitment (r=-0.20, P<0.01) . Conclusion: This study suggests that greater workplace social capital may lead to higher ITS in nursing primarily by increasing commitment to the nursing occupation and their job satisfaction and by reducing their sense of job stress.
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Affiliation(s)
- J L Gao
- School of Public Health, Fudan University, Shanghai 200032, China
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27
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Pang YJ, Zhang JY, Chen XH, Dong Z, Wu SF, Zhang FF, Gao JL. [An adolescent with Hashimoto's encephalopathy after surgery and ¹³¹I radiotherapy for papillary thyroid carcinoma: one case report]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2017; 31:235-236. [PMID: 29871232 DOI: 10.13201/j.issn.1001-1781.2017.03.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Indexed: 11/12/2022]
Abstract
Hashimoto's encephalopathy is a rare brain disease. Its etiology is still unknown. In this paper, we reported a 15-year-old female patient underwent total thyroidectomy and lymph node dissection, due to a multifocal papilliferous carcinoma of the right lobus. Forty-two days after surgery, the patient was treated by ¹³¹I radiotherapy in another hospital and begun to have a headache after 48 hours. At last, the patient was diagnosed by HE on the basis of all considerations. She recovered from by i.v. Immunoglobulin. Till now, the patient has not relapsed for more than 4 years follow-up.
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Lu XY, Dai JM, Wu N, Shu C, Gao JL, Fu H. [Association between sense of coherence and occupational stress of workers in modern service industry in Shanghai, China]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2016; 34:731-736. [PMID: 28043243 DOI: 10.3760/cma.j.issn.1001-9391.2016.10.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Objective: To investigate understand the current status of the sense of coherence and occupational stress in modern service workers, and to analyze the association between occupational stress and the sense of coherence. Methods: From March to April, 2016, 834 modern service workers from 3 companies in Shanghai, China (in air transportation industry, marketing industry, and travel industry) were surveyed by non-ran-dom sampling. The self-completion questionnaires were filled out anonymously given the informed consent of the workers. The occupational stress questionnaire was used to evaluate occupational stress, and the Chinese version of the Sense of Coherence Scale (SOC-13) was used to assess the mental health. Results: The mean score for the sense of coherence of the respondents was 61.54±10.46, and 50.1% of them were self-rated as having occupational stress. There were significant differences in SOC score between groups with different ages, marital status, positions, lengths of service, family per capita monthly income, and weekly work hours (P<0.05). The occupational stress score differed significantly across groups with different marital status, lengths of service, and weekly work hours (P<0.05). The scores for working autonomy, social support, and occupational stress differed significantly between groups with different SOC levels (P<0.05). There were significant differences in SOC score and the distribution of low-SOC respondents between groups with different levels of working autonomy, social support, and occupational stress. High SOC is a protective factor for occupational stress (OR=0.39, 95%CI 0.26~ 0.59). Conclusion: Modern service workers in Shanghai have high SOC and moderate occupational stress. Therefore, improving SOC may reduce occupational stress.
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Affiliation(s)
- X Y Lu
- School of Public Health, Key Lab of Public Health Safety of the Ministry of Education, Fudan University, Shanghai 200032, China
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29
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Swamydas M, Gao JL, Break TJ, Johnson MD, Jaeger M, Rodriguez CA, Lim JK, Green NM, Collar AL, Fischer BG, Lee CCR, Perfect JR, Alexander BD, Kullberg BJ, Netea MG, Murphy PM, Lionakis MS. CXCR1-mediated neutrophil degranulation and fungal killing promote Candida clearance and host survival. Sci Transl Med 2016; 8:322ra10. [PMID: 26791948 DOI: 10.1126/scitranslmed.aac7718] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Systemic Candida albicans infection causes high morbidity and mortality and is now the leading cause of nosocomial bloodstream infection in the United States. Neutropenia is a major risk factor for poor outcome in infected patients; however, the molecular factors that mediate neutrophil trafficking and effector function during infection are poorly defined. Using a mouse model of systemic candidiasis, we found that the neutrophil-selective CXC chemokine receptor Cxcr1 and its ligand, Cxcl5, are highly induced in the Candida-infected kidney, the target organ in the model. To investigate the role of Cxcr1 in antifungal host defense in vivo, we generated Cxcr1(-/-) mice and analyzed their immune response to Candida. Mice lacking Cxcr1 exhibited decreased survival with enhanced Candida growth in the kidney and renal failure. Increased susceptibility of Cxcr1(-/-) mice to systemic candidiasis was not due to impaired neutrophil trafficking from the blood into the infected kidney but was the result of defective killing of the fungus by neutrophils that exhibited a cell-intrinsic decrease in degranulation. In humans, the mutant CXCR1 allele CXCR1-T276 results in impaired neutrophil degranulation and fungal killing and was associated with increased risk of disseminated candidiasis in infected patients. Together, our data demonstrate a biological function for mouse Cxcr1 in vivo and indicate that CXCR1-dependent neutrophil effector function is a critical innate protective mechanism of fungal clearance and host survival in systemic candidiasis.
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Affiliation(s)
- Muthulekha Swamydas
- Fungal Pathogenesis Unit, Laboratory of Clinical Infectious Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | - Ji-Liang Gao
- Molecular Signaling Section, Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, NIH, Bethesda, MD 20892, USA
| | - Timothy J Break
- Fungal Pathogenesis Unit, Laboratory of Clinical Infectious Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | | | - Martin Jaeger
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen 6500HB, Netherlands
| | - Carlos A Rodriguez
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, NY 10029, USA
| | - Jean K Lim
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, NY 10029, USA
| | - Nathaniel M Green
- Fungal Pathogenesis Unit, Laboratory of Clinical Infectious Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | - Amanda L Collar
- Fungal Pathogenesis Unit, Laboratory of Clinical Infectious Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | - Brett G Fischer
- Fungal Pathogenesis Unit, Laboratory of Clinical Infectious Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health (NIH), Bethesda, MD 20892, USA. Molecular Signaling Section, Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, NIH, Bethesda, MD 20892, USA
| | - Chyi-Chia Richard Lee
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, MD 20892, USA
| | - John R Perfect
- Duke University School of Medicine, Durham, NC 27708, USA
| | | | - Bart-Jan Kullberg
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen 6500HB, Netherlands
| | - Mihai G Netea
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen 6500HB, Netherlands
| | - Philip M Murphy
- Molecular Signaling Section, Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, NIH, Bethesda, MD 20892, USA
| | - Michail S Lionakis
- Fungal Pathogenesis Unit, Laboratory of Clinical Infectious Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health (NIH), Bethesda, MD 20892, USA.
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Carevic M, Öz H, Fuchs K, Laval J, Schroth C, Frey N, Hector A, Bilich T, Haug M, Schmidt A, Autenrieth SE, Bucher K, Beer-Hammer S, Gaggar A, Kneilling M, Benarafa C, Gao JL, Murphy PM, Schwarz S, Moepps B, Hartl D. CXCR1 Regulates Pulmonary Anti-Pseudomonas Host Defense. J Innate Immun 2016; 8:362-73. [PMID: 26950764 DOI: 10.1159/000444125] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Accepted: 01/19/2016] [Indexed: 11/19/2022] Open
Abstract
Pseudomonas aeruginosa is a key opportunistic pathogen causing disease in cystic fibrosis (CF) and other lung diseases such as chronic obstructive pulmonary disease (COPD). However, the pulmonary host defense mechanisms regulating anti-P. aeruginosa immunity remain incompletely understood. Here we demonstrate, by studying an airway P. aeruginosa infection model, in vivo bioluminescence imaging, neutrophil effector responses and human airway samples, that the chemokine receptor CXCR1 regulates pulmonary host defense against P. aeruginosa. Mechanistically, CXCR1 regulates anti-Pseudomonas neutrophil responses through modulation of reactive oxygen species and interference with Toll-like receptor 5 expression. These studies define CXCR1 as a novel, noncanonical chemokine receptor that regulates pulmonary anti-Pseudomonas host defense with broad implications for CF, COPD and other infectious lung diseases.
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Affiliation(s)
- M Carevic
- Children's Hospital and Interdisciplinary Center for Infectious Diseases, University of Tx00FC;bingen, Tx00FC;bingen, Germany
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Abstract
We conducted a study to investigate the role of three IL-17 gene single nucleotide polymorphisms (SNP) (rs2275913G>A, rs3748067C>T, and rs763780 T>C) in the development of gastric cancer. A total of 252 patients with gastric cancer and 252 control subjects were collected between May 2012 and May 2014. The SNP genotyping of IL-17A rs2275913G>A and rs3748067C>T and IL-17F rs763780 T>C was performed using the Sequenom MassARRAY platform (Sequenom, San Diego, CA, USA) according to the manufacturer instructions. By conditional regression analysis, individuals carrying the AA and the GA+AA genotypes of rs2275913G>A were correlated with an elevated risk of gastric cancer when compared with those carrying the GG genotype, and the adjusted ORs (95%CIs) were 2.05 (1.13-3.76) for the AA genotype and 1.45 (1.03-2.08) for the GA+AA genotype. In conclusion, our results suggest that the IL-17A rs3748067C>T and IL-17F rs763780 T>C polymorphisms play an important role in the risk of gastric cancer in a Chinese population.
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Affiliation(s)
- W T Qi
- Department of Emergency, Zhengzhou People's Hospital, Zhengzhou, China
| | - J L Gao
- Department of Internal Medicine, Zhengzhou Straight Authority Hospital, Zhengzhou, China
| | - S S Zhang
- Department of Emergency, Zhengzhou People's Hospital, Zhengzhou, China
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McDermott DH, Gao JL, Murphy PM. Chromothriptic cure of WHIM syndrome: Implications for bone marrow transplantation. Rare Dis 2015; 3:e1073430. [PMID: 26459672 PMCID: PMC4588533 DOI: 10.1080/21675511.2015.1073430] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Accepted: 07/11/2015] [Indexed: 11/21/2022] Open
Abstract
We recently reported a 59 year old female, designated WHIM-09, who was born with the rare immunodeficiency disease WHIM syndrome but underwent spontaneous phenotypic reversion as an adult. The causative WHIM mutation CXCR4R334X was absent in her myeloid and erythroid lineage, but present in her lymphoid lineage and in epithelial cells, defining her as a somatic genetic mosaic. Genomic and hematologic analysis revealed chromothripsis (chromosome shattering) on one copy of chromosome 2, which deleted 164 genes including CXCR4R334X in a single haematopoietic stem cell (HSC) (Fig. 1). Experiments in mice indicated that deleting one copy of Cxcr4 is sufficient to confer a selective advantage for engraftment of transplanted HSCs, suggesting a mechanism for clinical cure in WHIM-09. Genome editing may allow autologous transplantation of HSCs lacking one copy of CXCR4 without bone marrow conditioning as a general cure strategy in WHIM syndrome, safely recapitulating the outcome in patient WHIM-09.
Chromothripsis (chromosomal shattering) resulted in clinical cure of a patient with a rare immunodeficiency (WHIM syndrome) by deleting the mutant copy of CXCR4. ![]()
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Affiliation(s)
- David H McDermott
- Laboratory of Molecular Immunology; National Institute of Allergy and Infectious Diseases; National Institutes of Health ; Bethesda, MD USA
| | - Ji-Liang Gao
- Laboratory of Molecular Immunology; National Institute of Allergy and Infectious Diseases; National Institutes of Health ; Bethesda, MD USA
| | - Philip M Murphy
- Laboratory of Molecular Immunology; National Institute of Allergy and Infectious Diseases; National Institutes of Health ; Bethesda, MD USA
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Bryke CR, McDermott DH, Gao JL, Liu Q, Siwicki M, Martens C, Jacobs P, Velez D, Yim E, Hsu N, Dai Z, Marquesen MM, Stregevsky E, Kwatemaa N, Theobald N, Long Priel DA, Pittaluga S, Raffeld MA, Calvo KR, Maric I, Desmond R, Holmes KL, Kuhns DB, Balabanian K, Bachelerie F, Porcella SF, Malech HL, Murphy PM. WHIM Syndrome Cured by Chromothripsis. Cancer Genet 2015. [DOI: 10.1016/j.cancergen.2015.05.007] [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: 10/23/2022]
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Liu Q, Li Z, Gao JL, Wan W, Ganesan S, McDermott DH, Murphy PM. CXCR4 antagonist AMD3100 redistributes leukocytes from primary immune organs to secondary immune organs, lung, and blood in mice. Eur J Immunol 2015; 45:1855-67. [PMID: 25801950 DOI: 10.1002/eji.201445245] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [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: 10/07/2014] [Revised: 02/05/2015] [Accepted: 03/08/2015] [Indexed: 11/07/2022]
Abstract
AMD3100 (plerixafor), is a specific CXCR4 antagonist approved by the FDA for mobilizing hematopoietic stem cells from bone marrow to blood for transplantation in cancer. AMD3100 also mobilizes most mature leukocyte subsets to blood; however, their source and trafficking potential have not been fully delineated. Here, we show that a single injection of AMD3100 10 mg/kg into C57Bl/6 mice rapidly mobilizes (peak ∼ 2.5 h) the same leukocyte subsets to blood as in humans. Using this model, we found that AMD3100 mobilization of neutrophils, lymphocytes, and monocytes to blood is not reduced by splenectomy or by blockade of lymphocyte egress from lymph node with FTY720, but is coupled to (i) reduced content of each of these cell types in the bone marrow; (ii) reduced T-cell numbers in thymuses; (iii) increased lymphocytes in lymph nodes; and (iv) increased neutrophil and monocyte content in the lung. Direct intrathymic labeling showed that AMD3100 selectively mobilizes naïve thymic CD4(+) and CD8(+) T cells to blood. Finally, AMD3100-induced neutrophil mobilization to blood did not reduce neutrophil trafficking to thioglycollate-inflamed peritoneum. Thus, AMD3100 redistributes lymphocytes, monocytes, and neutrophils from primary immune organs to secondary immune organs, peripheral tissues, and blood, without compromising neutrophil trafficking to inflamed sites.
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Affiliation(s)
- Qian Liu
- Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Zhanzhuo Li
- Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Ji-Liang Gao
- Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Wuzhou Wan
- Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Sundar Ganesan
- Research Technologies Branch, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - David H McDermott
- Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Philip M Murphy
- Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
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McDermott DH, Gao JL, Liu Q, Siwicki M, Martens C, Jacobs P, Velez D, Yim E, Bryke CR, Hsu N, Dai Z, Marquesen MM, Stregevsky E, Kwatemaa N, Theobald N, Long Priel DA, Pittaluga S, Raffeld MA, Calvo KR, Maric I, Desmond R, Holmes KL, Kuhns DB, Balabanian K, Bachelerie F, Porcella SF, Malech HL, Murphy PM. Chromothriptic cure of WHIM syndrome. Cell 2015; 160:686-699. [PMID: 25662009 DOI: 10.1016/j.cell.2015.01.014] [Citation(s) in RCA: 131] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2014] [Revised: 11/03/2014] [Accepted: 01/05/2015] [Indexed: 12/18/2022]
Abstract
Chromothripsis is a catastrophic cellular event recently described in cancer in which chromosomes undergo massive deletion and rearrangement. Here, we report a case in which chromothripsis spontaneously cured a patient with WHIM syndrome, an autosomal dominant combined immunodeficiency disease caused by gain-of-function mutation of the chemokine receptor CXCR4. In this patient, deletion of the disease allele, CXCR4(R334X), as well as 163 other genes from one copy of chromosome 2 occurred in a hematopoietic stem cell (HSC) that repopulated the myeloid but not the lymphoid lineage. In competitive mouse bone marrow (BM) transplantation experiments, Cxcr4 haploinsufficiency was sufficient to confer a strong long-term engraftment advantage of donor BM over BM from either wild-type or WHIM syndrome model mice, suggesting a potential mechanism for the patient's cure. Our findings suggest that partial inactivation of CXCR4 may have general utility as a strategy to promote HSC engraftment in transplantation.
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Affiliation(s)
- David H McDermott
- Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Ji-Liang Gao
- Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Qian Liu
- Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Marie Siwicki
- Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Craig Martens
- Research Technologies Branch, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT 59840, USA
| | - Paejonette Jacobs
- Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Daniel Velez
- Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Erin Yim
- Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Christine R Bryke
- Quest Diagnostics, Chantilly, VA 20151, USA; Department of Cytogenetics, Beth Israel Deaconess Medical Center, Boston, MA 02215, USA
| | - Nancy Hsu
- Quest Diagnostics, Chantilly, VA 20151, USA; Department of Cytogenetics, Beth Israel Deaconess Medical Center, Boston, MA 02215, USA
| | - Zunyan Dai
- Quest Diagnostics, Chantilly, VA 20151, USA; Department of Human Genetics, Emory University School of Medicine, Decatur, GA 30030, USA
| | - Martha M Marquesen
- Laboratory of Host Defenses, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Elina Stregevsky
- Research Technologies Branch, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Nana Kwatemaa
- Laboratory of Host Defenses, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Narda Theobald
- Laboratory of Host Defenses, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Debra A Long Priel
- Clinical Services Program, Leidos Biomedical Research, Frederick National Laboratory for Cancer Research, Frederick, MD 21701, USA
| | - Stefania Pittaluga
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Mark A Raffeld
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Katherine R Calvo
- Division of Laboratory Medicine, Clinical Center, National Institutes of Health, Bethesda, MD 20892, USA
| | - Irina Maric
- Division of Laboratory Medicine, Clinical Center, National Institutes of Health, Bethesda, MD 20892, USA
| | - Ronan Desmond
- Hematology Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD 20892, USA; Department of Haematology, Tallaght Hospital, Dublin 24, Ireland
| | - Kevin L Holmes
- Research Technologies Branch, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Douglas B Kuhns
- Clinical Services Program, Leidos Biomedical Research, Frederick National Laboratory for Cancer Research, Frederick, MD 21701, USA
| | - Karl Balabanian
- INSERM UMR- S996, Laboratory of Excellence in Research on Medication and Innovative Therapeutics, Université Paris-Sud, 92140 Clamart, France
| | - Françoise Bachelerie
- INSERM UMR- S996, Laboratory of Excellence in Research on Medication and Innovative Therapeutics, Université Paris-Sud, 92140 Clamart, France
| | - Stephen F Porcella
- Research Technologies Branch, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT 59840, USA
| | - Harry L Malech
- Laboratory of Host Defenses, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Philip M Murphy
- Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA.
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36
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Schneider EH, Fowler SC, Lionakis MS, Swamydas M, Holmes G, Diaz V, Munasinghe J, Peiper SC, Gao JL, Murphy PM. Regulation of motor function and behavior by atypical chemokine receptor 1. Behav Genet 2014; 44:498-515. [PMID: 24997773 PMCID: PMC4790732 DOI: 10.1007/s10519-014-9665-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2014] [Accepted: 06/04/2014] [Indexed: 12/14/2022]
Abstract
Atypical Chemokine Receptor 1 (ACKR1), previously known as Duffy Antigen Receptor for Chemokines, stands out among chemokine receptors for high selective expression on cerebellar Purkinje neurons. Although ACKR1 ligands activate Purkinje cells in vitro, evidence for ACKR1 regulation of brain function in vivo is lacking. Here we demonstrate that Ackr1 (-/-) mice have markedly impaired balance and ataxia on a rotating rod and increased tremor when injected with harmaline, which induces whole-body tremor by activating Purkinje cells. Ackr1 (-/-) mice also exhibited impaired exploratory behavior, increased anxiety-like behavior and frequent episodes of marked hypoactivity under low-stress conditions. Surprisingly, Ackr1 (+/-) had similar behavioral abnormalities, indicating pronounced haploinsufficiency. The behavioral phenotype of Ackr1 (-/-) mice was the opposite of mouse models of cerebellar degeneration, and the defects persisted when Ackr1 was deficient only on non-hematopoietic cells. Together, the results suggest that normal motor function and behavior may partly depend on negative regulation of Purkinje cell activity by Ackr1.
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Affiliation(s)
- Erich H. Schneider
- Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases (NIAID)/NIH, Bethesda, MD, USA
| | - Stephen C. Fowler
- Department of Pharmacology & Toxicology, University of Kansas, Lawrence, KS, USA
| | - Michail S. Lionakis
- Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases (NIAID)/NIH, Bethesda, MD, USA
| | - Muthulekha Swamydas
- Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases (NIAID)/NIH, Bethesda, MD, USA
| | - Gibran Holmes
- Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases (NIAID)/NIH, Bethesda, MD, USA
| | - Vivian Diaz
- In Vivo NMR Center, National Institute of Neurological Diseases and Stroke (NINDS)/NIH, Bethesda, MD, USA
| | - Jeeva Munasinghe
- In Vivo NMR Center, National Institute of Neurological Diseases and Stroke (NINDS)/NIH, Bethesda, MD, USA
| | - Stephen C. Peiper
- Institute of Pathology, Anatomy & Cell Biology, Jefferson Medical College, Philadelphia, PA, USA
| | - Ji-Liang Gao
- Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases (NIAID)/NIH, Bethesda, MD, USA
| | - Philip M. Murphy
- Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases (NIAID)/NIH, Bethesda, MD, USA
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37
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Gao JL. [Prospective randomized controlled study on advanced primary hepatic cancer treated by ganfule prescription]. Zhongguo Zhong Yao Za Zhi 2014; 39:2367-2369. [PMID: 25244777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Primary hepatic cancer is one of common malignant tumors. When being diagnosed, most patients were in middle and advanced stage and missed opportunities for surgical treatment. Therefore, chemotherapy and Chinese medicines become the main therapies for advanced primary hepatic cancer. This study was designed to observe the efficacy of Ganfule prescription combined with chemotherapy in treating advanced primary hepatic cancer. In the study, 58 cases of advanced primary hepatic cancer were randomly divided into the treatment group (30 cases) and the control group (28 cases). The treatment group was administered with Ganfule prescription combining with chemotherapy, while the control group was given chemotherapy alone. The tumors progress, quality of life, serum AFP level were evaluated in every three treatment cycles; and the survival rate was followed up for one year. According to the results of this study, after the treatment, there was no statistical significance in the comparison between the two groups in terms of response rate (RR) and disease control rate (DCR) (30.0% vs 25.0%, P = 0.670; 66.7% vs 60.7%, P = 0.637). The improvement rate of KPS score in the treatment group was significantly higher than that of the control group (43.33% vs 21.43%, P < 0.05). The reduction of serum AFP level in the treatment group was more significant than that of the control group (P < 0.05). During the one-year follow-up visit, the survival rate of the treatment group was 26.67%, and the control group was 25.00%, which indicated no statistical significance. This study drew the following conclusion that the oral administration of Ganfule prescription could improve the quality of life of patients of primary hepatic cancer, decrease the serum AFP level and maintain the disease control rate and the one-year survival rate.
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38
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Liu Q, Li Z, Gao JL, Wan W, McDermott D, Murphy P. CXCR4 antagonist AMD3100 mobilizes leukocytes from bone marrow and thymus to blood in mice (HEM2P.265). The Journal of Immunology 2014. [DOI: 10.4049/jimmunol.192.supp.50.10] [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: 01/02/2023]
Abstract
Abstract
AMD3100 is approved for mobilizing hematopoietic stem cells to blood for transplantation in cancer by blocking chemokine receptor CXCR4. It also mobilizes mature leukocytes to blood; however, there is conflicting published evidence regarding the source of mobilized neutrophils (bone marrow vs lung), and the source(s) of other mobilized leukocytes is unknown. Here we used surgical, pharmacologic and histologic approaches to address these questions in mice. AMD3100 10 mg/kg sq mobilized the same leukocyte subsets to blood in mice as in humans, and increased neutrophil and monocyte content in lung and lymph node, while reducing neutrophil, lymphocyte and monocyte content in bone marrow as well as T cell content in thymus. Direct intrathymic labeling showed that AMD3100 mobilized naïve CD4+ and CD8+ T cells to blood. In contrast, splenectomy and experiments with FTY720, which blocks T cell egress from lymph node, suggested that spleen and lymph node were not major sources of AMD3100-mobilized cells. Importantly, AMD3100 did not inhibit neutrophil trafficking to thioglycollate-inflamed peritoneum. These data provide evidence that CXCR4 is a selective compartmentalization factor for both bone marrow (lymphocyte, monocyte, neutrophil) and thymus (naïve T cells), but is not critical for homeostatic trafficking of leukocytes to uninflamed tissues or for innate immune responses to inflamed sites, a profile that is favorable for chronic administration of AMD3100 in patients.
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Affiliation(s)
- Qian Liu
- 1Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, Bethesda, MD
| | - Zhanzhuo Li
- 1Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, Bethesda, MD
| | - Ji-Liang Gao
- 1Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, Bethesda, MD
| | - Wuzhou Wan
- 1Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, Bethesda, MD
| | - David McDermott
- 1Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, Bethesda, MD
| | - Philip Murphy
- 1Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, Bethesda, MD
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39
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Liu M, Chen K, Yoshimura T, Liu Y, Gong W, Le Y, Gao JL, Zhao J, Wang JM, Wang A. Formylpeptide receptors mediate rapid neutrophil mobilization to accelerate wound healing. PLoS One 2014; 9:e90613. [PMID: 24603667 PMCID: PMC3946181 DOI: 10.1371/journal.pone.0090613] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2013] [Accepted: 02/02/2014] [Indexed: 12/19/2022] Open
Abstract
Wound healing is a multi-phased pathophysiological process requiring chemoattractant receptor-dependent accumulation of myeloid cells in the lesion. Two G protein-coupled formylpeptide receptors Fpr1 and Fpr2 mediate rapid neutrophil infiltration in the liver of Listeria-infected mice by sensing pathogen-derived chemotactic ligands. These receptors also recognize host-derived chemotactic peptides in inflammation and injury. Here we report the capacity of Fprs to promote the healing of sterile skin wound in mice by initiating neutrophil infiltration. We found that in normal miceneutrophils rapidly infiltrated the dermis in the wound before the production of neutrophil-specific chemokines by the injured tissue. In contrast, rapid neutrophil infiltration was markedly reduced with delayed wound closure in mice deficient in both Fprs. In addition, we detected Fpr ligand activity that chemoattracted neutrophils into the wound tissue. Our study thus demonstrates that Fprs are critical for normal healing of the sterile skin wound by mediating the first wave of neutrophil infiltration.
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Affiliation(s)
- Mingyong Liu
- Department of Spine Surgery, Daping Hospital, Third Military Medical University, Chongqing, China
- Laboratory of Molecular Immunoregulation, Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland, United States of America
- * E-mail:
| | - Keqiang Chen
- Laboratory of Molecular Immunoregulation, Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland, United States of America
| | - Teizo Yoshimura
- Laboratory of Molecular Immunoregulation, Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland, United States of America
| | - Ying Liu
- Laboratory of Molecular Immunoregulation, Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland, United States of America
- National Center For Nanoscience and Technology, Beijing, China
| | - Wanghua Gong
- Basic Research Program, Science Applications International Corporation-Frederick, Frederick, Maryland, United States of America
| | - Yingying Le
- Key Laboratory of Food Safety Research, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Ji-Liang Gao
- Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, Bethesda, Maryland, United States of America
| | - Jianhua Zhao
- Department of Spine Surgery, Daping Hospital, Third Military Medical University, Chongqing, China
| | - Ji Ming Wang
- Laboratory of Molecular Immunoregulation, Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland, United States of America
| | - Aimin Wang
- The Center for Orthopedics, Daping Hospital, Third Military Medical University, Chongqing, China
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40
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Xia WB, Gao JL, Zhang SY, Luo XJ, Chen LY, Xu LQ, Tang SL, Du YW. Optical and magneto-optical anisotropies in large-area two-dimensional Co antidots film. Opt Express 2014; 22:1359-1365. [PMID: 24515142 DOI: 10.1364/oe.22.001359] [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] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In this work, we investigate the plasmon-induced optical and magneto-optical anisotropies in the large-area square-ordered Co antidots film. It shows that both the outline of reflectivity spectrum and Kerr spectrum are significantly modified by surface plasmon polarition (SPP) resonances. Moreover, the magnitude of Kerr angle reaches to about 10 minutes at the azimuthal angle 45°, which is over 3 times of that of pure Co film. These phenomena are attributed to the SPP resonances with different diffraction orders of reciprocal lattice vectors.
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41
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Lionakis MS, Swamydas M, Fischer BG, Plantinga TS, Johnson MD, Jaeger M, Green NM, Masedunskas A, Weigert R, Mikelis C, Wan W, Lee CCR, Lim JK, Rivollier A, Yang JC, Laird GM, Wheeler RT, Alexander BD, Perfect JR, Gao JL, Kullberg BJ, Netea MG, Murphy PM. CX3CR1-dependent renal macrophage survival promotes Candida control and host survival. J Clin Invest 2013; 123:5035-51. [PMID: 24177428 DOI: 10.1172/jci71307] [Citation(s) in RCA: 170] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2013] [Accepted: 08/27/2013] [Indexed: 12/19/2022] Open
Abstract
Systemic Candida albicans infection causes high morbidity and mortality and is associated with neutropenia; however, the roles of other innate immune cells in pathogenesis are poorly defined. Here, using a mouse model of systemic candidiasis, we found that resident macrophages accumulated in the kidney, the main target organ of infection, and formed direct contacts with the fungus in vivo mainly within the first few hours after infection. Macrophage accumulation and contact with Candida were both markedly reduced in mice lacking chemokine receptor CX3CR1, which was found almost exclusively on resident macrophages in uninfected kidneys. Infected Cx3cr1-/- mice uniformly succumbed to Candida-induced renal failure, but exhibited clearance of the fungus in all other organs tested. Renal macrophage deficiency in infected Cx3cr1-/- mice was due to reduced macrophage survival, not impaired proliferation, trafficking, or differentiation. In humans, the dysfunctional CX3CR1 allele CX3CR1-M280 was associated with increased risk of systemic candidiasis. Together, these data indicate that CX3CR1-mediated renal resident macrophage survival is a critical innate mechanism of early fungal control that influences host survival in systemic candidiasis.
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MESH Headings
- Adaptor Proteins, Signal Transducing/physiology
- Adoptive Transfer
- Animals
- Apoptosis
- CX3C Chemokine Receptor 1
- Candida albicans/immunology
- Candida albicans/physiology
- Candida albicans/ultrastructure
- Candidiasis, Invasive/immunology
- Candidiasis, Invasive/pathology
- Cell Movement
- Chemokine CCL2/physiology
- Chemokine CX3CL1/physiology
- Female
- Genetic Predisposition to Disease
- Host-Pathogen Interactions/immunology
- Humans
- Hyphae/ultrastructure
- Kidney/immunology
- Kidney/microbiology
- Kidney/pathology
- Macrophage Activation
- Macrophages/microbiology
- Macrophages/physiology
- Male
- Mice
- Mice, Inbred C57BL
- Models, Animal
- Monocytes/microbiology
- Monocytes/physiology
- Netherlands
- Organ Specificity
- Polymorphism, Single Nucleotide
- Radiation Chimera
- Receptors, CCR2/physiology
- Receptors, Chemokine/deficiency
- Receptors, Chemokine/genetics
- Receptors, Chemokine/physiology
- Risk Factors
- Specific Pathogen-Free Organisms
- United States
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Zhang J, Shu QJ, Gao JL, Zhang L. [Study on inhibitory effects of Taxus chinensis var. mairei aqueous extract on the proliferation of tumor cells]. Zhongguo Zhong Xi Yi Jie He Za Zhi 2013; 33:805-809. [PMID: 23980363] [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: 06/02/2023]
Abstract
OBJECTIVE To study the inhibitory effects of Taxus chinensis var. mairei Aqueous Extract (TAE) on SGC-7901 and MCF-7 cells, and to explore its mechanisms. METHODS The inhibitory effects of TAT and Paclitaxel on the proliferation of SGC-7901 and MCF-7 cells were tested by MTT method. Their effects on the morphology of SGC-7901 and MCF-7 cells were observed by microscope. Its effects on the cell apoptosis were detected by flow cytometry. RESULTS The TAE had inhibitory effects on the proliferation of tumor cells, and its mechanisms were correlated to inducing the apoptosis of tumor cells. CONCLUSION TAE had inhibitory effects on the proliferation of tumor cells.
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Affiliation(s)
- Jing Zhang
- Tumor Department, Hangzhou Xiaoshan District Hospital of Traditional Chinese Medicine, Hangzhou 311200, China
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43
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Chen K, Liu M, Liu Y, Yoshimura T, Shen W, Le Y, Durum S, Gong W, Wang C, Gao JL, Murphy PM, Wang JM. Formylpeptide receptor-2 contributes to colonic epithelial homeostasis, inflammation, and tumorigenesis. J Clin Invest 2013; 123:1694-704. [PMID: 23454745 DOI: 10.1172/jci65569] [Citation(s) in RCA: 80] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2012] [Accepted: 01/11/2013] [Indexed: 01/24/2023] Open
Abstract
Commensal bacteria and their products provide beneficial effects to the mammalian gut by stimulating epithelial cell turnover and enhancing wound healing, without activating overt inflammation. We hypothesized that N-formylpeptide receptors, which bind bacterial N-formylpeptides and are expressed by intestinal epithelial cells, may contribute to these processes. Here we report that formylpeptide receptor-2 (FPR2), which we show is expressed on the apical and lateral membranes of colonic crypt epithelial cells, mediates N-formylpeptide-dependent epithelial cell proliferation and renewal. Colonic epithelial cells in FPR2-deficient mice displayed defects in commensal bacterium-dependent homeostasis as shown by the absence of responses to N-formylpeptide stimulation, shortened colonic crypts, reduced acute inflammatory responses to dextran sulfate sodium (DSS) challenge, delayed mucosal restoration after injury, and increased azoxymethane-induced tumorigenesis. These results indicate that FPR2 is critical in mediating homeostasis, inflammation, and epithelial repair processes in the colon.
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Affiliation(s)
- Keqiang Chen
- Laboratory of Molecular Immunoregulation, Cancer and Inflammation Program, Center for Cancer Research, Frederick National Laboratory for Cancer Research, Frederick, Maryland 21702, USA
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44
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Liu M, Chen K, Yoshimura T, Liu Y, Gong W, Wang A, Gao JL, Murphy PM, Wang JM. Formylpeptide receptors are critical for rapid neutrophil mobilization in host defense against Listeria monocytogenes. Sci Rep 2012; 2:786. [PMID: 23139859 PMCID: PMC3493074 DOI: 10.1038/srep00786] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2012] [Accepted: 09/27/2012] [Indexed: 12/11/2022] Open
Abstract
Listeria monocytogenes (Listeria) causes opportunistic infection in immunocompromised hosts with high mortality. Resistance to Listeria depends on immune responses and recruitment of neutrophils of the immune system into infected sites is an early and critical step. Mouse neutrophils express two G protein-coupled formylpeptide receptor subtypes Fpr1 and Fpr2 that recognize bacterial and host-derived chemotactic molecules including Listeria peptides for cell migration and activation. Here we report deficiency in Fprs exacerbated the severity of the infection and increased the mortality of infected mice. The mechanism involved impaired early neutrophil recruitment to the liver with Fpr1 and Fpr2 being sole receptors for neutrophils to sense Listeria chemoattractant signals and for production of bactericidal superoxide. Thus, Fprs are essential sentinels to guide the first wave of neutrophil infiltration in the liver of Listeria-infected mice for effective elimination of the invading pathogen.
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Affiliation(s)
- Mingyong Liu
- Department of Spine Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China.
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Schneider EH, Weaver JD, Gaur SS, Tripathi BK, Jesaitis AJ, Zelenka PS, Gao JL, Murphy PM. The leukocyte chemotactic receptor FPR1 is functionally expressed on human lens epithelial cells. J Biol Chem 2012; 287:40779-92. [PMID: 23012360 DOI: 10.1074/jbc.m112.411181] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND Lens degeneration in Fpr1(-/-) mice prompted us to search for functional FPR1 expression directly on lens epithelial cells. RESULTS FPR1 is functionally expressed on human lens epithelial cells but has atypical properties compared with hematopoietic cell FPR1. CONCLUSION Lens epithelial cell FPR1 may be involved in development and maintenance of the lens. SIGNIFICANCE This is the first link between non-hematopoietic expression of FPR1 and an ophthalmologic phenotype. Formyl peptide receptor 1 (FPR1) is a G protein-coupled chemoattractant receptor expressed mainly on leukocytes. Surprisingly, aging Fpr1(-/-) mice develop spontaneous lens degeneration without inflammation or infection (J.-L. Gao et al., manuscript in preparation). Therefore, we hypothesized that FPR1 is functionally expressed directly on lens epithelial cells, the only cell type in the lens. Consistent with this, the human fetal lens epithelial cell line FHL 124 expressed FPR1 mRNA and was strongly FPR1 protein-positive by Western blot and FACS. Competition binding using FPR1 ligands N-formyl-Nle-Leu-Phe-Nle-Tyr-Lys (Nle = Norleucine), formylmethionylleucylphenylalanine, and peptide W revealed the same profile for FHL 124 cells, neutrophils, and FPR1-transfected HEK 293 cells. Saturation binding with fluorescein-labeled N-formyl-Nle-Leu-Phe-Nle-Tyr-Lys revealed ~2500 specific binding sites on FHL-124 cells (K(D) ~ 0.5 nm) versus ~40,000 sites on neutrophils (K(D) = 3.2 nm). Moreover, formylmethionylleucylphenylalanine induced pertussis toxin-sensitive Ca(2+) flux in FHL 124 cells, consistent with classic G(i)-mediated FPR1 signaling. FHL 124 cell FPR1 was atypical in that it resisted agonist-induced internalization. Expression of FPR1 was additionally supported by detection of the intact full-length open reading frame in sequenced cDNA from FHL 124 cells. Thus, FHL-124 cells express functional FPR1, which is consistent with a direct functional role for FPR1 in the lens, as suggested by the phenotype of Fpr1 knock-out mice.
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Affiliation(s)
- Erich H Schneider
- Molecular Signaling Section, Laboratory of Molecular Immunology, NIAID, National Institutes of Health, Bethesda, MD 20892, USA
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Lionakis MS, Fischer BG, Lim JK, Swamydas M, Wan W, Richard Lee CC, Cohen JI, Scheinberg P, Gao JL, Murphy PM. Chemokine receptor Ccr1 drives neutrophil-mediated kidney immunopathology and mortality in invasive candidiasis. PLoS Pathog 2012; 8:e1002865. [PMID: 22916017 PMCID: PMC3420964 DOI: 10.1371/journal.ppat.1002865] [Citation(s) in RCA: 94] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2012] [Accepted: 07/04/2012] [Indexed: 11/23/2022] Open
Abstract
Invasive candidiasis is the 4th leading cause of nosocomial bloodstream infection in the US with mortality that exceeds 40% despite administration of antifungal therapy; neutropenia is a major risk factor for poor outcome after invasive candidiasis. In a fatal mouse model of invasive candidiasis that mimics human bloodstream-derived invasive candidiasis, the most highly infected organ is the kidney and neutrophils are the major cellular mediators of host defense; however, factors regulating neutrophil recruitment have not been previously defined. Here we show that mice lacking chemokine receptor Ccr1, which is widely expressed on leukocytes, had selectively impaired accumulation of neutrophils in the kidney limited to the late phase of the time course of the model; surprisingly, this was associated with improved renal function and survival without affecting tissue fungal burden. Consistent with this, neutrophils from wild-type mice in blood and kidney switched from Ccr1lo to Ccr1high at late time-points post-infection, when Ccr1 ligands were produced at high levels in the kidney and were chemotactic for kidney neutrophils ex vivo. Further, when a 1∶1 mixture of Ccr1+/+ and Ccr1−/− donor neutrophils was adoptively transferred intravenously into Candida-infected Ccr1+/+ recipient mice, neutrophil trafficking into the kidney was significantly skewed toward Ccr1+/+ cells. Thus, neutrophil Ccr1 amplifies late renal immunopathology and increases mortality in invasive candidiasis by mediating excessive recruitment of neutrophils from the blood to the target organ. Invasive infection by the yeast Candida represents a significant cause of morbidity and mortality in patients in the intensive care unit. Neutrophils, which are recruited to sites of Candida infection by chemokines and their receptors, are important immune cells in host defense against invasive candidiasis. Consistent with that, lack of neutrophils is a well-established risk factor for adverse outcome after infection. In this study, we performed a broad survey of the chemokine system in a mouse model of invasive candidiasis with an aim to determine factors that regulate neutrophil trafficking to sites of infection. We used that survey to identify Ccr1 as a mediator of mortality in the model via excessive recruitment of neutrophils from the blood to the kidney that results in kidney tissue injury. Strikingly, the effect of Ccr1 on neutrophil accumulation in the kidney was not seen until the late phase of the infection, when the receptor was up-regulated on the neutrophil surface. Together these data demonstrate that neutrophils, besides their recognized protective roles in antifungal host defense, may also exert detrimental effects by causing uncontrolled tissue damage, and identify Ccr1 as a mediator of neutrophil tissue injury in a mouse model of invasive candidiasis.
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Affiliation(s)
- Michail S Lionakis
- Clinical Mycology Unit, Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, United States of America.
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Ojode T, Schneider EH, Tiffany HL, Yung S, Gao JL, Murphy PM. The major leukocyte chemotactic and activating factors in the mouse gut lumen are not N-formylpeptide receptor 1 agonists. J Innate Immun 2012; 5:2-14. [PMID: 22722599 DOI: 10.1159/000339572] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2012] [Accepted: 05/16/2012] [Indexed: 12/12/2022] Open
Abstract
Cultured bacteria release N-formylpeptides, which are potent chemoattractants for phagocytic leukocytes acting at G-protein-coupled receptors FPR1 and FPR2. However, the distribution and immunologic activity of these molecules at mucosal surfaces, where large numbers of bacteria are separated from the immune system by epithelium, remain undefined. To investigate this for the gut, we tested leukocyte responses to cell-free gut luminal contents from C57Bl/6 mice fed a chow diet. Small and large intestine contents were able to compete with labeled N-formylpeptide for binding to FPR1, indicating the presence of FPR1 ligands in the gut lumen. Material from both small and large intestine induced robust calcium flux responses by primary FPR1(+) leukocytes (mouse bone marrow cells and splenocytes and human peripheral blood neutrophils and mononuclear cells), as well as chemotactic responses by both mouse bone marrow cells and human peripheral blood neutrophils. However, unlike defined N-formylpeptides, calcium flux responses induced by gut luminal contents were insensitive both to pertussis toxin treatment of leukocytes and to proteinase K digestion of the samples. Moreover, the gut samples were fully active on neutrophils from mice lacking Fpr1, and the kinetics of the calcium flux response differed markedly for neutrophils and peripheral blood mononuclear cells. The active factor(s) could be dialyzed using a 3.5-kDa pore size membrane. Thus, mouse intestinal lumen contains small, potent and highly efficacious leukocyte chemotactic and activating factors that may be distinct from neutrophils and peripheral blood mononuclear cells and distinct from Fpr1 agonists.
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Affiliation(s)
- Teresa Ojode
- Molecular Signaling Section, Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
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Schneider E, Gao JL, Holmes G, Fowler S, Peiper S, Murphy P. Behavior-modulating function of the Duffy Antigen Receptor for Chemokines (DARC) in mice under homeostatic conditions (44.24). The Journal of Immunology 2012. [DOI: 10.4049/jimmunol.188.supp.44.24] [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: 01/02/2023]
Abstract
Abstract
DARC binds promiscuously many inflammatory chemokines without intracellular signal transduction. It is mainly expressed on endothelial cells of postcapillary venules and on erythrocytes, where it acts as a transendothelial chemokine transporter and as a chemokine sink, respectively. Surprisingly, DARC was also shown to be expressed at high density in the cerebellum of human and mouse brain, but with as yet unknown function. We addressed this question by subjecting C57Bl/6 wildtype and DARC-deficient mice to behavior experiments including Morris water maze-, elevated plus maze-, rotarod- and actometer tests. While the water maze results are ambiguous, elevated plus maze trials show a strong aversion of DARC-/- mice to walk to the end of the open arm, which is consistent with anxiety-like behavior. Moreover, DARC-/- mice show greatly reduced locomotor activity, resulting from episodes of reduced mobility that occur more frequently than in the C57Bl/6 controls (elevated plus maze, actometer). Finally, DARC-/- mice spend a significantly reduced time on the rotarod compared to C57Bl/6 controls, probably indicating impaired cerebellar function. We conclude that DARC modulates brain function. Surprisingly, this appears to be happening under homeostatic conditions, although DARC binds mainly inflammatory chemokines. Since DARC shows no signaling, this effect may be indirectly caused by altered brain chemokine concentrations or may result from as yet unknown DARC signaling pathways.
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Affiliation(s)
- Erich Schneider
- 1Laboratory of Molecular Immunology, Molecular Signaling Section, NIAID, NIH, Bethesda, MD
| | - Ji-Liang Gao
- 1Laboratory of Molecular Immunology, Molecular Signaling Section, NIAID, NIH, Bethesda, MD
| | - Gibran Holmes
- 1Laboratory of Molecular Immunology, Molecular Signaling Section, NIAID, NIH, Bethesda, MD
| | - Stephen Fowler
- 2Department of Pharmacology and Toxicology, University of Kansas, Kansas City, KS
| | - Stephen Peiper
- 3Department of Pathology, Anatomy and Cell Biology, Thomas Jefferson University, Philadelphia, PA
| | - Philip Murphy
- 1Laboratory of Molecular Immunology, Molecular Signaling Section, NIAID, NIH, Bethesda, MD
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Gao JL, Cheung RTF, Chan YS, Chu LW, Lee TMC. Increased prospective memory interference in normal and pathological aging: different roles of motor and verbal processing speed. Neuropsychol Dev Cogn B Aging Neuropsychol Cogn 2012; 20:80-100. [PMID: 22486785 DOI: 10.1080/13825585.2012.672948] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
This is a study on prospective memory (PM) and the PM interference effect in normal and pathological aging. One hundred and seven subjects, including 41 healthy young adults, 40 non-demented older adults and 26 patients with mild Alzheimer's disease (AD) participated in this study using a laboratory event-based PM task. PM task performance was comparable between the non-demented older and young adults, but impaired in the AD patients. The PM interference effect increased progressively from the healthy young adults, the non-demented older adults, to the AD patients. Path analysis revealed that the possible mechanism mediating the increased PM interference was the slow motor processing speed in normal aging, while it was the slow verbal speed in pathological aging. It is suggested that different neuropsychological mechanisms may underpin the affected performance of PM task in normal and pathological aging.
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Affiliation(s)
- J L Gao
- Department of Medicine, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong
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Wu Y, Wang S, Farooq SM, Castelvetere MP, Hou Y, Gao JL, Navarro JV, Oupicky D, Sun F, Li C. A chemokine receptor CXCR2 macromolecular complex regulates neutrophil functions in inflammatory diseases. J Biol Chem 2011; 287:5744-55. [PMID: 22203670 DOI: 10.1074/jbc.m111.315762] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Inflammation plays an important role in a wide range of human diseases such as ischemia-reperfusion injury, arteriosclerosis, cystic fibrosis, inflammatory bowel disease, etc. Neutrophilic accumulation in the inflamed tissues is an essential component of normal host defense against infection, but uncontrolled neutrophilic infiltration can cause progressive damage to the tissue epithelium. The CXC chemokine receptor CXCR2 and its specific ligands have been reported to play critical roles in the pathophysiology of various inflammatory diseases. However, it is unclear how CXCR2 is coupled specifically to its downstream signaling molecules and modulates cellular functions of neutrophils. Here we show that the PDZ scaffold protein NHERF1 couples CXCR2 to its downstream effector phospholipase C (PLC)-β2, forming a macromolecular complex, through a PDZ-based interaction. We assembled a macromolecular complex of CXCR2·NHERF1·PLC-β2 in vitro, and we also detected such a complex in neutrophils by co-immunoprecipitation. We further observed that the CXCR2-containing macromolecular complex is critical for the CXCR2-mediated intracellular calcium mobilization and the resultant migration and infiltration of neutrophils, as disrupting the complex with a cell permeant CXCR2-specific peptide (containing the PDZ motif) inhibited intracellular calcium mobilization, chemotaxis, and transepithelial migration of neutrophils. Taken together, our data demonstrate a critical role of the PDZ-dependent CXCR2 macromolecular signaling complex in regulating neutrophil functions and suggest that targeting the CXCR2 multiprotein complex may represent a novel therapeutic strategy for certain inflammatory diseases.
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Affiliation(s)
- Yanning Wu
- Department of Biochemistry and Molecular Biology, Wayne State University School of Medicine, Detroit, Michigan 48201, USA
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