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Wang B, Gao M, Yao Y, Shen H, Li H, Sun J, Wang L, Zhang X. Enhancing endometrial receptivity: the roles of human chorionic gonadotropin in autophagy and apoptosis regulation in endometrial stromal cells. Reprod Biol Endocrinol 2024; 22:37. [PMID: 38576003 PMCID: PMC10993617 DOI: 10.1186/s12958-024-01205-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Accepted: 03/12/2024] [Indexed: 04/06/2024] Open
Abstract
Inadequate endometrial receptivity often results in embryo implantation failure and miscarriage. Human chorionic gonadotropin (hCG) is a key signaling molecule secreted during early embryonic development, which regulates embryonic maternal interface signaling and promotes embryo implantation. This study aimed to examine the impact of hCG on endometrial receptivity and its underlying mechanisms. An exploratory study was designed, and endometrial samples were obtained from women diagnosed with simple tubal infertility or male factor infertile (n = 12) and recurrent implantation failure (RIF, n = 10). Using reverse transcription-quantitative PCR and western blotting, luteinizing hormone (LH)/hCG receptor (LHCGR) levels and autophagy were detected in the endometrial tissues. Subsequently, primary endometrial stromal cells (ESCs) were isolated from these control groups and treated with hCG to examine the presence of LHCGR and markers of endometrial receptivity (HOXA10, ITGB3, FOXO1, LIF, and L-selectin ligand) and autophagy-related factors (Beclin1, LC3, and P62). The findings revealed that the expressions of receptivity factors, LHCGR, and LC3 were reduced in the endometrial tissues of women with RIF compared with the control group, whereas the expression of P62 was elevated. The administration of hCG to ESCs specifically activated LHCGR, stimulating an increase in the endometrial production of HOXA10, ITGB3, FOXO1, LIF and L-selectin ligands. Furthermore, when ESCs were exposed to 0.1 IU/mL hCG for 72 h, the autophagy factors Beclin1 and LC3 increased within the cells and P62 decreased. Moreover, the apoptotic factor Bax increased and Bcl-2 declined. However, when small interfering RNA was used to knock down LHCGR, hCG was less capable of controlling endometrial receptivity and autophagy molecules in ESCs. In addition, hCG stimulation enhanced the phosphorylation of ERK1/2 and mTOR proteins. These results suggest that women with RIF exhibit lower levels of LHCGR and compromised autophagy function in their endometrial tissues. Thus, hCG/LHCGR could potentially improve endometrial receptivity by modulating autophagy and apoptosis.
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Affiliation(s)
- Bin Wang
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, China
| | - Mingxia Gao
- Reproductive Medicine Center, The First Hospital of Lanzhou University, Lanzhou, China.
- Key Laboratory for Reproductive Medicine and Embryo, Gansu Province, Lanzhou, China.
| | - Ying Yao
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, China
| | - Haofei Shen
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, China
| | - Hongwei Li
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, China
| | - Jingjing Sun
- Medical Laboratory Center, The First Hospital of Lanzhou University, Lanzhou, China
| | - Liyan Wang
- Reproductive Medicine Center, The First Hospital of Lanzhou University, Lanzhou, China
- Key Laboratory for Reproductive Medicine and Embryo, Gansu Province, Lanzhou, China
| | - Xuehong Zhang
- Reproductive Medicine Center, The First Hospital of Lanzhou University, Lanzhou, China.
- Key Laboratory for Reproductive Medicine and Embryo, Gansu Province, Lanzhou, China.
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Huang KS, Chen CY, Sun CY, Su YJ. Serum parabens and its correlations with immunologic and cellular markers in Southern Taiwan industrialized city systemic lupus erythematosus patients. J Chin Med Assoc 2022; 85:993-999. [PMID: 36206526 DOI: 10.1097/jcma.0000000000000802] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/07/2023] Open
Abstract
BACKGROUND Although the immune systems of patients with systemic lupus erythematosus (SLE) are affected by both personal characteristics and environmental factors, the effects of parabens on patients with SLE have not been well studied. We investigated the indirect effects of four parabens-methylparaben (MP), ethylparaben (EP), propylparaben (n-PrP), and butylparaben (n-BuP)-on several immunological markers. METHODS We assessed the serum levels of MP, EP, n-PrP, and n-BuP in 25 SLE patients and correlated the concentration of each paraben with available clinical and laboratory markers, including intracellular markers of antiviral immunity and apoptosis. RESULTS The expression of aryl hydrocarbon receptor (AhR) was significantly negatively correlated with n-PrP levels (p = 0.03, r = -0.434). In monocytes, APO2.7 was significantly positively correlated with n-BuP levels (p = 0.019, r = 0.467). Glutathione levels were significantly negatively correlated with n-BuP levels (p = 0.019, r = -0.518). Anti- β2 glycoprotein I IgM was significantly positively correlated with both MP (p = 0.011, r = 0.585) and EP levels (p = 0.032, r = 0.506). Anti-cardiolipin IgA was significantly positively correlated with both MP (p = 0.038, r = 0.493) and n-PrP levels (p = 0.031, r = 0.508). On CD8 T cells, the early apoptotic marker annexin V was significantly negatively correlated with both MP (p < 0.05, r = -0.541) and n-BuP levels (p = 0.02, r = -0.616), and L-selectin was significantly positively correlated with both MP (p < 0.05, r = 0.47) and n-PrP levels (p = 0.02, r = 0.556). CONCLUSION Our findings suggest that higher parabens levels were associated with lower AhR expression in leukocytes, increased monocyte apoptosis, lower serum glutathione levels, reduced annexin V expression on CD8 T cells, and higher L-selectin levels on leukocytes.
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Affiliation(s)
- Kun-Siang Huang
- Department of Family Medicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan, ROC
- College of Medicine, Chang Gung University, Taoyuan, Taiwan, ROC
| | - Chun-Yu Chen
- College of Medicine, Chang Gung University, Taoyuan, Taiwan, ROC
- Department of Nephrology, Chang Gung Memorial Hospital, Keelung Branch, Keelung, Taiwan, ROC
- Community Medicine Research Center, Chang Gung Memorial Hospital, Keelung Branch, Keelung, Taiwan, ROC
| | - Chiao-Yin Sun
- College of Medicine, Chang Gung University, Taoyuan, Taiwan, ROC
- Department of Nephrology, Chang Gung Memorial Hospital, Keelung Branch, Keelung, Taiwan, ROC
- Community Medicine Research Center, Chang Gung Memorial Hospital, Keelung Branch, Keelung, Taiwan, ROC
| | - Yu-Jih Su
- College of Medicine, Chang Gung University, Taoyuan, Taiwan, ROC
- Department of Internal Medicine, Division of Rheumatology, Allergy and Immunology, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan, ROC
- Center for Mitochondrial Research and Medicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan, ROC
- Institute of biopharmaceutical science, National Sun Yat-Sen University, Kaohsiung, Taiwan, ROC
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Wang C, Bao A, Hai Q, Hu Z, Bai X. Application of Ultrasonic Intelligent Imaging in L-Selectin Regulating Embryo Implantation in Mongolian Sheep Endometrium. Scanning 2022; 2022:3323768. [PMID: 35822162 PMCID: PMC9225865 DOI: 10.1155/2022/3323768] [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] [Figures] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Revised: 05/28/2022] [Accepted: 06/06/2022] [Indexed: 06/15/2023]
Abstract
In order to explore the practical application of ultrasonic imaging in the pregnancy stage of Mongolian sheep and the role of L-selectin in the embryo implantation process of Mongolian sheep, this paper systematically observed the early embryonic development by B-mode ultrasonic imaging wave diagnostic instrument with 5 MHz rectal probe and detected the expression of sLex and L-selectin in embryonic cells (jar cells) and endometrial cells (RL95-2 cells) by immunoassay to show the role of L-selectin in embryonic adhesion. The results were as follows: the correct rate of fetal sex determination by ultrasound imaging increased with the increase of pregnancy days and reached 93% at 84 days; sLex/L-selectin on the surface of Jar/RL95-2 cells is involved in the adhesion between embryo and endometrium; and when the concentration of L-selectin was 30 μg/ml, the implantation success rate of fertilized eggs and embryos was the highest, reaching 95%. It is proved that ultrasonic intelligent imaging exploration can summarize the imaging characteristics of the early development law of sheep fetus, which provides a basis for B-ultrasound to monitor fetal growth and predict fetal age. While discussing the molecular mechanism of implantation, it provides a new idea and means for the clinical intervention of contraception and pregnancy assistance with oligosaccharide as the target.
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Affiliation(s)
- Changshou Wang
- Department of Agronomy, Hetao College, Bayannur, Inner Mongolia 015000, China
| | - Adong Bao
- Department of Agronomy, Hetao College, Bayannur, Inner Mongolia 015000, China
| | - Qing Hai
- Department of Agronomy, Hetao College, Bayannur, Inner Mongolia 015000, China
| | - Zhengxiang Hu
- Bayannur Forestry and Grassland Bureau, Bayannur Inner Mongolia 015000, China
| | - Xiaoying Bai
- Animal Disease Prevention and Control Center, Kezuo Middle Banner, Tongliao, Inner Mongolia 029300, China
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Ito Y, Nakahara F, Kagoya Y, Kurokawa M. CD62L expression level determines the cell fate of myeloid progenitors. Stem Cell Reports 2021; 16:2871-2886. [PMID: 34798065 PMCID: PMC8693656 DOI: 10.1016/j.stemcr.2021.10.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Revised: 10/19/2021] [Accepted: 10/20/2021] [Indexed: 11/01/2022] Open
Abstract
Hematopoietic cells differentiate through several progenitors in a hierarchical manner, and recent single-cell analyses have revealed substantial heterogeneity within each progenitor. Although common myeloid progenitors (CMPs) are defined as a multipotent cell population that can differentiate into granulocyte-monocyte progenitors (GMPs) and megakaryocyte-erythrocyte progenitors (MEPs), and GMPs generate neutrophils and monocytes, these myeloid progenitors must contain some lineage-committed progenitors. Through gene expression analysis at single-cell levels, we identified CD62L as a marker to reveal the heterogeneity. We confirmed that CD62L-negative CMPs represent "bona fide" CMPs, whereas CD62L-high CMPs are mostly restricted to GMP potentials both in mice and humans. In addition, we identified CD62L-negative GMPs as the most immature subsets in GMPs and Ly6C+CD62L-intermediate and Ly6C+CD62L-high GMPs are skewed to neutrophil and monocyte differentiation in mice, respectively. Our findings contribute to more profound understanding about the mechanism of myeloid differentiation.
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Affiliation(s)
- Yusuke Ito
- Department of Hematology and Oncology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-8655, Japan; Research Fellow of Japan Society for the Promotion of Science, Tokyo, Japan
| | - Fumio Nakahara
- Department of Hematology and Oncology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Yuki Kagoya
- Department of Cell Therapy and Transplantation Medicine, The University of Tokyo Hospital, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Mineo Kurokawa
- Department of Hematology and Oncology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-8655, Japan; Department of Cell Therapy and Transplantation Medicine, The University of Tokyo Hospital, Bunkyo-ku, Tokyo, 113-8655, Japan.
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5
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McIlwain DR, Chen H, Rahil Z, Bidoki NH, Jiang S, Bjornson Z, Kolhatkar NS, Martinez CJ, Gaudillière B, Hedou J, Mukherjee N, Schürch CM, Trejo A, Affrime M, Bock B, Kim K, Liebowitz D, Aghaeepour N, Tucker SN, Nolan GP. Human influenza virus challenge identifies cellular correlates of protection for oral vaccination. Cell Host Microbe 2021; 29:1828-1837.e5. [PMID: 34784508 PMCID: PMC8665113 DOI: 10.1016/j.chom.2021.10.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 05/24/2021] [Revised: 09/16/2021] [Accepted: 10/21/2021] [Indexed: 01/23/2023]
Abstract
Developing new influenza vaccines with improved performance and easier administration routes hinges on defining correlates of protection. Vaccine-elicited cellular correlates of protection for influenza in humans have not yet been demonstrated. A phase-2 double-blind randomized placebo and active (inactivated influenza vaccine) controlled study provides evidence that a human-adenovirus-5-based oral influenza vaccine tablet (VXA-A1.1) can protect from H1N1 virus challenge in humans. Mass cytometry characterization of vaccine-elicited cellular immune responses identified shared and vaccine-type-specific responses across B and T cells. For VXA-A1.1, the abundance of hemagglutinin-specific plasmablasts and plasmablasts positive for integrin α4β7, phosphorylated STAT5, or lacking expression of CD62L at day 8 were significantly correlated with protection from developing viral shedding following virus challenge at day 90 and contributed to an effective machine learning model of protection. These findings reveal the characteristics of vaccine-elicited cellular correlates of protection for an oral influenza vaccine.
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Affiliation(s)
- David R McIlwain
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA, USA; WCCT Global, Cypress, CA, USA.
| | - Han Chen
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA, USA
| | - Zainab Rahil
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA, USA
| | - Neda Hajiakhoond Bidoki
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA, USA; Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford, CA, USA; Department of Biomedical Informatics, Stanford University School of Medicine, Stanford, CA, USA
| | - Sizun Jiang
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA, USA; Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Zach Bjornson
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA, USA
| | | | | | - Brice Gaudillière
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Julien Hedou
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Nilanjan Mukherjee
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA, USA
| | - Christian M Schürch
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA, USA; Department of Pathology and Neuropathology, University Hospital and Comprehensive Cancer Center Tübingen, Tübingen, Germany
| | - Angelica Trejo
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA, USA
| | | | | | - Kenneth Kim
- Ark Clinical Research, LLC, Long Beach, CA, USA
| | | | - Nima Aghaeepour
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford, CA, USA; Department of Biomedical Informatics, Stanford University School of Medicine, Stanford, CA, USA; Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, USA
| | | | - Garry P Nolan
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
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Hughes SF, Moyes AJ, Lamb RM, Ella-Tongwiis P, Snyper NYF, Shergill I. The role of phagocytic leukocytes following flexible ureterenoscopy, for the treatment of kidney stones: an observational, clinical pilots-study. Eur J Med Res 2020; 25:68. [PMID: 33308282 PMCID: PMC7731777 DOI: 10.1186/s40001-020-00466-7] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Accepted: 11/26/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The number of patients undergoing flexible ureterenoscopy (FURS) for the treatment of kidney stones (renal calculi) is increasing annually, and as such the development of post-operative complications, such as acute kidney injury (AKI), haematuria and infection is likely to increase. Phagocytic leukocytes are white blood cells that help fight foreign material such as bacteria and viruses, and they are intrinsically involved in the inflammatory reaction. Investigating the role of phagocytic leukocytes following FURS has not been widely researched. The main aim of the study was to evaluate the role phagocytic leukocytes (neutrophils and monocytes) function, in patients undergoing FURS for the treatment of kidney stones (renal calculi). METHODS Fourteen consecutive patients aged between 27 and 70 years (median 49.5 years) undergoing FURS for the treatment of kidney stones were recruited (seven males, seven females). Blood samples were collected from each patient at four time points: baseline (pre-operatively) followed by 30, 120 and 240 min post-operatively. Mononuclear (MN) and polymorphonuclear (PMN) leukocyte sub-populations were isolated by density gradient centrifugation techniques. Neutrophil and monocyte cell function was investigated by measuring the cell surface expression of CD62L (L-selectin), CD11b (Mac-1), CD99 and the intracellular production of hydrogen peroxide (H2O2), via flow cytometry. RESULTS Significant increases was observed in monocyte CD62L expression post FURS for the treatment of kidney stones (p ≤ 0.05); while significant decreases were observed in neutrophil CD62L. The levels of the other activation markers CD11b, CD99 and H2O2 corresponded to the increases and decreases seen in CD62L for monocytes and neutrophils respectively, though the changes were not statistically significant (p > 0.05). Limiting factors for this study were the relatively small sample size, and restriction on the recruitment time points. CONCLUSIONS This study demonstrates that following FURS for the treatment of kidney stones, monocytes are rapidly activated and produce potent reactive oxygen intermediates. Interestingly, the pattern of expression in neutrophils suggests that these cells are deactivated in response to the treatment. The leukocyte biomarkers assessed during this investigation may have a role in monitoring the 'normal' post-operative response, as no complications occurred in any of the patients; or may help predict potential infectious complications (e.g. urosepsis) that can occur during the post-operative period. This data, however, will need to be validated and reproduced in larger multi-centre studies.
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Affiliation(s)
- Stephen Fôn Hughes
- North Wales and North West Urological Research Centre, Betsi Cadwaladr University Health Board (BCUHB) Wrexham Maelor Hospital, Wrexham, Wales, UK.
- North Wales Clinical Research Centre, Betsi Cadwaladr University Health Board (BCUHB) Wrexham Maelor Hospital, Wrexham, Wales, UK.
| | - Alyson Jayne Moyes
- North Wales and North West Urological Research Centre, Betsi Cadwaladr University Health Board (BCUHB) Wrexham Maelor Hospital, Wrexham, Wales, UK
- North Wales Clinical Research Centre, Betsi Cadwaladr University Health Board (BCUHB) Wrexham Maelor Hospital, Wrexham, Wales, UK
- School of Medical Sciences, Bangor University, Bangor, Wales, UK
| | - Rebecca May Lamb
- North Wales and North West Urological Research Centre, Betsi Cadwaladr University Health Board (BCUHB) Wrexham Maelor Hospital, Wrexham, Wales, UK
| | - Peter Ella-Tongwiis
- North Wales and North West Urological Research Centre, Betsi Cadwaladr University Health Board (BCUHB) Wrexham Maelor Hospital, Wrexham, Wales, UK
- North Wales Clinical Research Centre, Betsi Cadwaladr University Health Board (BCUHB) Wrexham Maelor Hospital, Wrexham, Wales, UK
| | - Nana Yaa Frempomaa Snyper
- North Wales and North West Urological Research Centre, Betsi Cadwaladr University Health Board (BCUHB) Wrexham Maelor Hospital, Wrexham, Wales, UK
- North Wales Clinical Research Centre, Betsi Cadwaladr University Health Board (BCUHB) Wrexham Maelor Hospital, Wrexham, Wales, UK
| | - Iqbal Shergill
- North Wales and North West Urological Research Centre, Betsi Cadwaladr University Health Board (BCUHB) Wrexham Maelor Hospital, Wrexham, Wales, UK
- North Wales Clinical Research Centre, Betsi Cadwaladr University Health Board (BCUHB) Wrexham Maelor Hospital, Wrexham, Wales, UK
- Department of Urology, BCUHB Wrexham Maelor Hospital, Wrexham, Wales, UK
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Garcia G, Kim MH, Morikis VA, Simon SI. Neutrophil Inflammatory Response Is Downregulated by Uptake of Superparamagnetic Iron Oxide Nanoparticle Therapeutics. Front Immunol 2020; 11:571489. [PMID: 33362760 PMCID: PMC7757401 DOI: 10.3389/fimmu.2020.571489] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Accepted: 10/19/2020] [Indexed: 11/22/2022] Open
Abstract
Superparamagnetic iron oxide nanoparticles (SPION) are employed as diagnostics and therapeutics following intravenous delivery for the treatment of iron deficiency anemia (IDA) in adult patients with chronic kidney failure. Neutrophils are the first defense against blood borne foreign insult and recruit to vascular sites of inflammation via a sequential process that is characterized by adhesive capture, rolling, and shear resistant arrest. A primary chemotactic agonist presented on the glycocalyx of inflamed endothelium is IL-8, which upon binding to its cognate membrane receptor (CXCR1/2) activates a suite of responses in neutrophils. An early response is degranulation with accompanying upregulation of β2-integrin (CD11/CD18) and shedding of L-selectin (CD62L) receptors, which exert differential effects on the efficiency of endothelial recruitment. Feraheme is an FDA approved SPION treatment for IDA, but its effect on the innate immune response of neutrophils during inflammation has not been reported. Here, we studied the immunomodulatory effects of Feraheme on neutrophils freshly isolated from healthy human subjects and stimulated in suspension or on inflammatory mimetic substrates with IL-8. Cells treated with Feraheme exhibited reduced sensitivity to stimulation with IL-8, indicated by reduced upregulation of membrane CD11b/CD18 receptors, high affinity (HA) CD18, and shedding of CD62L. Feraheme also inhibited N-formyl-Met-Leu-Phe (fMLP) induced reactive oxygen species production. Neutrophil rolling, arrest, and migration was assessed in vascular mimetic microfluidic channels coated with E-selectin and ICAM-1 to simulate inflamed endothelium. Neutrophils exposed to Feraheme rolled faster on E-selectin and arrested less frequently on ICAM-1, in a manner dependent upon SPION concentration. Subsequent neutrophil shape change, and migration were also significantly inhibited in the presence of Feraheme. Lastly, Feraheme accelerated clearance of cytosolic calcium flux following IL-8 stimulation. We conclude that uptake of Feraheme by neutrophils inhibits chemotactic activation and downregulates normal rolling to arrest under shear flow. The mechanism involves increased calcium clearance following chemotactic activation, which may diminish the efficiency of recruitment from the circulation at vascular sites of inflammation.
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Affiliation(s)
- Gustavo Garcia
- Department of Biomedical Engineering, University of California, Davis, Davis, CA, United States
| | - Min-Ho Kim
- Department of Biological Sciences, Kent State University, Kent, OH, United States
| | - Vasilios Aris Morikis
- Department of Biomedical Engineering, University of California, Davis, Davis, CA, United States
| | - Scott I. Simon
- Department of Biomedical Engineering, University of California, Davis, Davis, CA, United States
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Zhao J, Chen Y, Dong L, Li X, Dong R, Zhou D, Wang C, Guo X, Zhang J, Xue Z, Xi Q, Zhang L, Yang G, Li Y, Zhang R. Arctigenin protects mice from thioglycollate-induced acute peritonitis. Pharmacol Res Perspect 2020; 8:e00660. [PMID: 32960513 PMCID: PMC7507838 DOI: 10.1002/prp2.660] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 08/27/2020] [Accepted: 08/27/2020] [Indexed: 11/13/2022] Open
Abstract
Acute peritonitis is an acute inflammatory response of the peritoneal cavity to physical injury and chemical stimulation. Timely resolution of this response is critical to prevent further damage to the body, which can eventually lead to more severe chronic inflammation. Arctigenin (ATG) is the main active ingredient of the Chinese medicine Arctium lappa. In recent years, there have been an increasing number of studies on the anti-inflammatory effect of ATG, but there have been few studies on the effect of ATG on acute inflammation, especially in acute peritonitis, which has not been reported. In this study, a mouse model of experimental acute peritonitis induced by thioglycolate (TG) solution was used to study the protective anti-inflammatory effect of ATG against acute peritonitis and the relevant mechanism. Our results showed that, after 12 hours of TG treatment, ATG significantly reduced inflammatory cell infiltration in mouse tissues and inhibited the secretion and expression of interleukin-6 (IL-6) and tumor necrosis factor alpha (TNF-α) in mice. ATG significantly reduced the percentage of CD11b+ Ly6G+ neutrophils and F4/80+ macrophages in the spleen and peritoneal exudate. In addition, ATG significantly inhibited the expression of the chemokines CCL3 and CCL4 and the adhesion molecule CD62L on the surface of CD11b-positive monocytes. ATG was observed to inhibit the phosphorylation of p65 and p38 in LPS-stimulated RAW264.7 cells. In conclusion, ATG can improve the symptoms of TG-induced acute peritonitis through immune regulation. ATG can reduce the inflammatory response in TG-induced acute peritonitis in mice.
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Affiliation(s)
- Jingyi Zhao
- Guangdong Province Key Laboratory for Biotechnology Drug CandidatesInstitute of Basic Medical Sciences and Department of BiotechnologySchool of Life Sciences and BiopharmaceuticsGuangdong Pharmaceutical UniversityGuangzhouChina
| | - Ying Chen
- Guangdong Province Key Laboratory for Biotechnology Drug CandidatesInstitute of Basic Medical Sciences and Department of BiotechnologySchool of Life Sciences and BiopharmaceuticsGuangdong Pharmaceutical UniversityGuangzhouChina
| | - Lijun Dong
- Guangdong Province Key Laboratory for Biotechnology Drug CandidatesInstitute of Basic Medical Sciences and Department of BiotechnologySchool of Life Sciences and BiopharmaceuticsGuangdong Pharmaceutical UniversityGuangzhouChina
| | - Xin Li
- Guangdong Province Key Laboratory for Biotechnology Drug CandidatesInstitute of Basic Medical Sciences and Department of BiotechnologySchool of Life Sciences and BiopharmaceuticsGuangdong Pharmaceutical UniversityGuangzhouChina
| | - Ruijie Dong
- Department of ImmunologyKey Laboratory of Immune Microenvironment and Diseases of Educational Ministry of ChinaTianjin Medical UniversityTianjinChina
| | - Dongmei Zhou
- Department of ImmunologyKey Laboratory of Immune Microenvironment and Diseases of Educational Ministry of ChinaTianjin Medical UniversityTianjinChina
| | - Chengzhi Wang
- Department of ImmunologyKey Laboratory of Immune Microenvironment and Diseases of Educational Ministry of ChinaTianjin Medical UniversityTianjinChina
| | - Xiangdong Guo
- Department of ImmunologyKey Laboratory of Immune Microenvironment and Diseases of Educational Ministry of ChinaTianjin Medical UniversityTianjinChina
| | - Jieyou Zhang
- Department of ImmunologyKey Laboratory of Immune Microenvironment and Diseases of Educational Ministry of ChinaTianjin Medical UniversityTianjinChina
| | - Zhenyi Xue
- Department of ImmunologyKey Laboratory of Immune Microenvironment and Diseases of Educational Ministry of ChinaTianjin Medical UniversityTianjinChina
| | - Qing Xi
- Department of ImmunologyKey Laboratory of Immune Microenvironment and Diseases of Educational Ministry of ChinaTianjin Medical UniversityTianjinChina
| | - Lijuan Zhang
- Department of ImmunologyKey Laboratory of Immune Microenvironment and Diseases of Educational Ministry of ChinaTianjin Medical UniversityTianjinChina
| | - Guangze Yang
- Department of ImmunologyKey Laboratory of Immune Microenvironment and Diseases of Educational Ministry of ChinaTianjin Medical UniversityTianjinChina
| | - Yan Li
- Guangdong Province Key Laboratory for Biotechnology Drug CandidatesInstitute of Basic Medical Sciences and Department of BiotechnologySchool of Life Sciences and BiopharmaceuticsGuangdong Pharmaceutical UniversityGuangzhouChina
| | - Rongxin Zhang
- Guangdong Province Key Laboratory for Biotechnology Drug CandidatesInstitute of Basic Medical Sciences and Department of BiotechnologySchool of Life Sciences and BiopharmaceuticsGuangdong Pharmaceutical UniversityGuangzhouChina
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Gong Y, Suzuki T, Kozono H, Kubo M, Nakano N. Tumor-infiltrating CD62L+PD-1-CD8 T cells retain proliferative potential via Bcl6 expression and replenish effector T cells within the tumor. PLoS One 2020; 15:e0237646. [PMID: 32845913 PMCID: PMC7449457 DOI: 10.1371/journal.pone.0237646] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Accepted: 07/30/2020] [Indexed: 01/11/2023] Open
Abstract
Tumor antigen–primed CD8 T cells differentiate into effector T cells that kill tumor cells rapidly, whereas durable responses of CD8 T cells are required to cope with long-lasting tumor growth. However, it is not well known how persisting CD8 T cells are generated. In this study, we analyzed CD8 T cells primed by antigens in tumor-draining lymph nodes and found that CD8 T cells first differentiated into a CD62L-intermediate (CD62Lint) stage upon antigen stimulation. These cells gave rise to tumor-infiltrating CD62L-CD44high Bcl6- effector T cells and CD62L+CD44highBcl6+ memory-like T cells. Memory-like T cells within the tumor expressed CD127, CXCR3 and had the potential to proliferate significantly when they were transferred into tumor-bearing mice. Bcl6 expression in these T cells was critical because Bcl6-/-CD62L+CD44highCD8T cells within the tumor were defective in expansion after secondary transfer. Taken together, our findings show that CD62L+CD44highBcl6+ cells are generated from highly proliferating CD62Lint T cells and retain high proliferative potential, which contributes to replenishment of effector T cells within the tumor.
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Affiliation(s)
- Yu Gong
- Research Institute for Biomedical Sciences, Tokyo University of Science, Chiba, Japan
| | - Toshihiro Suzuki
- School of Medicine and Faculty of Medical Technology, General Medical Education and Research Center, Teikyo University, Tokyo, Japan
| | - Haruo Kozono
- Research Institute for Biomedical Sciences, Tokyo University of Science, Chiba, Japan
| | - Masato Kubo
- Research Institute for Biomedical Sciences, Tokyo University of Science, Chiba, Japan
| | - Naoko Nakano
- Research Institute for Biomedical Sciences, Tokyo University of Science, Chiba, Japan
- * E-mail:
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10
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Drescher HK, Schippers A, Rosenhain S, Gremse F, Bongiovanni L, de Bruin A, Eswaran S, Gallage SU, Pfister D, Szydlowska M, Heikenwalder M, Weiskirchen S, Wagner N, Trautwein C, Weiskirchen R, Kroy DC. L-Selectin/CD62L is a Key Driver of Non-Alcoholic Steatohepatitis in Mice and Men. Cells 2020; 9:cells9051106. [PMID: 32365632 PMCID: PMC7290433 DOI: 10.3390/cells9051106] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Revised: 04/20/2020] [Accepted: 04/27/2020] [Indexed: 02/07/2023] Open
Abstract
CD62L (L-Selectin) dependent lymphocyte infiltration is known to induce inflammatory bowel disease (IBD), while its function in the liver, especially in non-alcoholic steatohepatitis (NASH), remains unclear. We here investigated the functional role of CD62L in NASH in humans as well as in two mouse models of steatohepatitis. Hepatic expression of a soluble form of CD62L (sCD62L) was measured in patients with steatosis and NASH. Furthermore, CD62L−/− mice were fed with a methionine and choline deficient (MCD) diet for 4 weeks or with a high fat diet (HFD) for 24 weeks. Patients with NASH displayed increased serum levels of sCD62L. Hepatic CD62L expression was higher in patients with steatosis and increased dramatically in NASH patients. Interestingly, compared to wild type (WT) mice, MCD and HFD-treated CD62L−/− mice were protected from diet-induced steatohepatitis. This was reflected by less fat accumulation in hepatocytes and a dampened manifestation of the metabolic syndrome with an improved insulin resistance and decreased cholesterol and triglyceride levels. Consistent with ameliorated disease, CD62L−/− animals exhibited an enhanced hepatic infiltration of Treg cells and a strong activation of an anti-oxidative stress response. Those changes finally resulted in less fibrosis in CD62L−/− mice. Additionally, this effect could be reproduced in a therapeutic setting by administrating an anti-CD62L blocking antibody. CD62L expression in humans and mice correlates with disease activity of steatohepatitis. CD62L knockout and anti-CD62L-treated mice are protected from diet-induced steatohepatitis suggesting that CD62L is a promising target for therapeutic interventions in NASH.
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Affiliation(s)
- Hannah K. Drescher
- Department of Internal Medicine III, University Hospital, RWTH Aachen, 52074 Aachen, Germany; (C.T.); (D.C.K.)
- Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
- Correspondence:
| | - Angela Schippers
- Department of Pediatrics, University Hospital, RWTH Aachen, 52074 Aachen, Germany; (A.S.); (S.E.); (N.W.)
| | - Stefanie Rosenhain
- Institute for Experimental Molecular Imaging, University Hospital, RWTH Aachen University, 52074 Aachen, Germany; (S.R.); (F.G.)
| | - Felix Gremse
- Institute for Experimental Molecular Imaging, University Hospital, RWTH Aachen University, 52074 Aachen, Germany; (S.R.); (F.G.)
| | - Laura Bongiovanni
- Dutch Molecular Pathology Centre, Department of Pathobiology, Faculty of Veterinary Medicine, Utrecht University, 3508 Utrecht, The Netherlands; (L.B.); (A.d.B.)
| | - Alain de Bruin
- Dutch Molecular Pathology Centre, Department of Pathobiology, Faculty of Veterinary Medicine, Utrecht University, 3508 Utrecht, The Netherlands; (L.B.); (A.d.B.)
| | - Sreepradha Eswaran
- Department of Pediatrics, University Hospital, RWTH Aachen, 52074 Aachen, Germany; (A.S.); (S.E.); (N.W.)
| | - Suchira U. Gallage
- Division of Chronic Inflammation and Cancer, German Cancer Research Center Heidelberg (DKFZ), 69120 Heidelberg, Germany; (S.U.G.); (D.P.); (M.S.); (M.H.)
| | - Dominik Pfister
- Division of Chronic Inflammation and Cancer, German Cancer Research Center Heidelberg (DKFZ), 69120 Heidelberg, Germany; (S.U.G.); (D.P.); (M.S.); (M.H.)
| | - Marta Szydlowska
- Division of Chronic Inflammation and Cancer, German Cancer Research Center Heidelberg (DKFZ), 69120 Heidelberg, Germany; (S.U.G.); (D.P.); (M.S.); (M.H.)
| | - Mathias Heikenwalder
- Division of Chronic Inflammation and Cancer, German Cancer Research Center Heidelberg (DKFZ), 69120 Heidelberg, Germany; (S.U.G.); (D.P.); (M.S.); (M.H.)
| | - Sabine Weiskirchen
- Institute of Molecular Pathobiochemistry, Experimental Gene Therapy and Clinical Chemistry (IFMPEGKC), University Hospital, RWTH Aachen University, 52074 Aachen, Germany; (S.W.); (R.W.)
| | - Norbert Wagner
- Department of Pediatrics, University Hospital, RWTH Aachen, 52074 Aachen, Germany; (A.S.); (S.E.); (N.W.)
| | - Christian Trautwein
- Department of Internal Medicine III, University Hospital, RWTH Aachen, 52074 Aachen, Germany; (C.T.); (D.C.K.)
| | - Ralf Weiskirchen
- Institute of Molecular Pathobiochemistry, Experimental Gene Therapy and Clinical Chemistry (IFMPEGKC), University Hospital, RWTH Aachen University, 52074 Aachen, Germany; (S.W.); (R.W.)
| | - Daniela C. Kroy
- Department of Internal Medicine III, University Hospital, RWTH Aachen, 52074 Aachen, Germany; (C.T.); (D.C.K.)
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11
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Secchi C, Orecchioni M, Carta M, Galimi F, Turrini F, Pantaleo A. Signaling Response to Transient Redox Stress in Human Isolated T Cells: Molecular Sensor Role of Syk Kinase and Functional Involvement of IL2 Receptor and L-Selectine. Sensors (Basel) 2020; 20:s20020466. [PMID: 31947584 PMCID: PMC7013990 DOI: 10.3390/s20020466] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 01/04/2020] [Accepted: 01/08/2020] [Indexed: 01/04/2023]
Abstract
Reactive oxygen species (ROS) are central effectors of inflammation and play a key role in cell signaling. Previous reports have described an association between oxidative events and the modulation of innate immunity. However, the role of redox signaling in adaptive immunity is still not well understood. This work is based on a novel investigation of diamide, a specific oxidant of sulfhydryl groups, and it is the first performed in purified T cell tyrosine phosphorylation signaling. Our data show that ex vivo T cells respond to –SH group oxidation with a distinctive tyrosine phosphorylation response and that these events elicit specific cellular responses. The expression of two essential T-cell receptors, CD25 and CD62L, and T-cell cytokine release is also affected in a specific way. Experiments with Syk inhibitors indicate a major contribution of this kinase in these phenomena. This pilot work confirms the presence of crosstalk between oxidation of cysteine residues and tyrosine phosphorylation changes, resulting in a series of functional events in freshly isolated T cells. Our experiments show a novel role of Syk inhibitors in applying their anti-inflammatory action through the inhibition of a ROS-generated reaction.
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Affiliation(s)
- Christian Secchi
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California, San Diego, School of Medicine, La Jolla, CA 92093, USA
- Department of Biomedical Sciences, University of Sassari, I-07100 Sassari, Italy; (M.C.); (F.G.)
- Istituto Nazionale Biostrutture e Biosistemi, University of Sassari, I-07100 Sassari, Italy
- Correspondence: (C.S.); (A.P.); Tel./Fax: +39-079-228-651 (A.P.)
| | - Marco Orecchioni
- La Jolla Institute of Immunology, La Jolla, CA 92093, USA;
- Department of Chemistry and Pharmacy, University of Sassari, I-07100 Sassari, Italy
| | - Marissa Carta
- Department of Biomedical Sciences, University of Sassari, I-07100 Sassari, Italy; (M.C.); (F.G.)
| | - Francesco Galimi
- Department of Biomedical Sciences, University of Sassari, I-07100 Sassari, Italy; (M.C.); (F.G.)
- Istituto Nazionale Biostrutture e Biosistemi, University of Sassari, I-07100 Sassari, Italy
| | | | - Antonella Pantaleo
- Department of Biomedical Sciences, University of Sassari, I-07100 Sassari, Italy; (M.C.); (F.G.)
- Correspondence: (C.S.); (A.P.); Tel./Fax: +39-079-228-651 (A.P.)
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12
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Goldson TM, Turner KL, Huang Y, Carlson GE, Caggiano EG, Oberhauser AF, Fennewald SM, Burdick MM, Resto VA. Nucleolin mediates the binding of cancer cells to L-selectin under conditions of lymphodynamic shear stress. Am J Physiol Cell Physiol 2020; 318:C83-C93. [PMID: 31644306 PMCID: PMC6985834 DOI: 10.1152/ajpcell.00035.2019] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 10/01/2019] [Accepted: 10/08/2019] [Indexed: 02/08/2023]
Abstract
Head and neck squamous cell carcinoma (HNSCC) cells bind to lymphocytes via L-selectin in a shear-dependent manner. This interaction takes place exclusively under low-shear stress conditions, such as those found within the lymph node parenchyma. This represents a novel functional role for L-selectin-selectin ligand interactions. Our previous work has characterized as-of-yet unidentified L-selectin ligands expressed by HNSCC cells that are specifically active under conditions of low shear stress consistent with lymph flow. Using an affinity purification approach, we now show that nucleolin expressed on the surface of HNSCC cells is an active ligand for L-selectin. Parallel plate chamber flow-based experiments and atomic force microscopy (AFM) experiments show that nucleolin is the main functional ligand under these low-force conditions. Furthermore, AFM shows a clear relationship between work of deadhesion and physiological loading rates. Our results reveal nucleolin as the first major ligand reported for L-selectin that operates under low-shear stress conditions.
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Affiliation(s)
- Tovë M Goldson
- Department of Otolaryngology, University of Texas Medical Branch, Galveston, Texas
- Department of Biochemistry and Molecular Biology, University of Texas Medical Branch, Galveston, Texas
- University of Texas Medical Branch Cancer Center, Galveston, Texas
| | - Kevin L Turner
- Department of Mechanical Engineering, Ohio University, Athens, Ohio
| | - Yinan Huang
- Department of Chemical and Biomolecular Engineering, Ohio University, Athens, Ohio
- Biomedical Engineering Program, Russ College of Engineering and Technology, Ohio University, Athens, Ohio
| | - Grady E Carlson
- Department of Chemical and Biomolecular Engineering, Ohio University, Athens, Ohio
| | - Emily G Caggiano
- Biological Sciences Program, Honors Tutorial College, Ohio University, Athens, Ohio
| | - Andres F Oberhauser
- Department of Biochemistry and Molecular Biology, University of Texas Medical Branch, Galveston, Texas
- Department of Neuroscience and Cell Biology, University of Texas Medical Branch, Galveston, Texas
- Sealy Center for Structural Biology and Molecular Biophysics, University of Texas Medical Branch, Galveston, Texas
| | - Susan M Fennewald
- Department of Otolaryngology, University of Texas Medical Branch, Galveston, Texas
- Department of Biochemistry and Molecular Biology, University of Texas Medical Branch, Galveston, Texas
- University of Texas Medical Branch Cancer Center, Galveston, Texas
| | - Monica M Burdick
- Department of Otolaryngology, University of Texas Medical Branch, Galveston, Texas
- Department of Chemical and Biomolecular Engineering, Ohio University, Athens, Ohio
- Biomedical Engineering Program, Russ College of Engineering and Technology, Ohio University, Athens, Ohio
| | - Vicente A Resto
- Department of Otolaryngology, University of Texas Medical Branch, Galveston, Texas
- Department of Biochemistry and Molecular Biology, University of Texas Medical Branch, Galveston, Texas
- University of Texas Medical Branch Cancer Center, Galveston, Texas
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13
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Perfilyeva YV, Ostapchuk YO, Abdolla N, Tleulieva R, Krasnoshtanov VC, Belyaev NN. Exogenous Melatonin Up-Regulates Expression of CD62L by Lymphocytes in Aged Mice under Inflammatory and Non-Inflammatory Conditions. Immunol Invest 2019; 48:632-643. [PMID: 30887869 DOI: 10.1080/08820139.2019.1586918] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [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] [Indexed: 12/31/2022]
Abstract
It is well documented that age-related impaired functioning of immunocompetent cells is associated with an increase in the rates of chronic inflammatory diseases. Recently, an ability of melatonin to modulate inflammatory processes by regulating leucocyte recruitment has been demonstrated. However, to date, no studies have attempted to determine the impact of melatonin on the expression of CD62L by lymphocytes. CD62L, also known as L-selectin, is required for the entry of lymphocytes into secondary lymphoid organs, sites of tumor growth and chronic inflammation through high endothelial venules. Here, we investigated the effect of melatonin at physiological concentrations on the expression of CD62L by T and NK cells in vivo and in vitro. We demonstrated that NK and CD3+ T cells obtained from the spleen of aged mice were characterized by decreased expression of CD62L compared to young mice. Melatonin administration up-regulated the levels of surface CD62L on NK and T cell populations in aged mice under non-inflammatory conditions and on CD8+ T cells in aged mice with chronic inflammation. Pre-incubation with melatonin prevented the reduction in CD62L expression by CD8+ T cells induced by the co-cultivation of peripheral blood mononuclear cells with human pancreatic adenocarcinoma cell line (MiaPaCa-2). The obtained results suggest that melatonin can modulate lymphocyte homing into lymph nodes and sites of chronic inflammation and, therefore, can stimulate immune responses in chronic inflammatory conditions associated with aging.
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Affiliation(s)
- Yuliya V Perfilyeva
- a Laboratory of Molecular Immunology and Immunobiotechnology , M.A.Aitkhozhin's Institute of Molecular Biology and Biochemistry , Almaty , Kazakhstan
| | - Yekaterina O Ostapchuk
- a Laboratory of Molecular Immunology and Immunobiotechnology , M.A.Aitkhozhin's Institute of Molecular Biology and Biochemistry , Almaty , Kazakhstan
| | - Nurshat Abdolla
- a Laboratory of Molecular Immunology and Immunobiotechnology , M.A.Aitkhozhin's Institute of Molecular Biology and Biochemistry , Almaty , Kazakhstan
- b Department of Biophysics and Biomedicine , Al-Farabi Kazakh National University , Almaty , Kazakhstan
| | - Raikhan Tleulieva
- a Laboratory of Molecular Immunology and Immunobiotechnology , M.A.Aitkhozhin's Institute of Molecular Biology and Biochemistry , Almaty , Kazakhstan
| | | | - Nikolai N Belyaev
- d Department of New Technologies , Saint-Petersburg Pasteur Institute , Saint-Petersburg , Russia
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14
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Watson HA, Durairaj RRP, Ohme J, Alatsatianos M, Almutairi H, Mohammed RN, Vigar M, Reed SG, Paisey SJ, Marshall C, Gallimore A, Ager A. L-Selectin Enhanced T Cells Improve the Efficacy of Cancer Immunotherapy. Front Immunol 2019; 10:1321. [PMID: 31249570 PMCID: PMC6582763 DOI: 10.3389/fimmu.2019.01321] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Accepted: 05/24/2019] [Indexed: 12/11/2022] Open
Abstract
The homing molecule, L-selectin (CD62L), is commonly used as a T cell activation marker, since expression is downregulated following engagement of the T cell receptor. Studies in mice have shown that CD62L+ central memory T cells are better at controlling tumor growth than CD62L- effector memory T cells, while L-selectin knockout T cells are poor at controlling tumor growth. Here, we test the hypothesis that T cells expressing genetically modified forms of L-selectin that are maintained following T cell activation (L-selectin enhanced T cells) are better at controlling tumor growth than wild type T cells. Using mouse models of adoptive cell therapy, we show that L-selectin enhancement improves the efficacy of CD8+ T cells in controlling solid and disseminated tumor growth. L-selectin knockout T cells had no effect. Checkpoint blockade inhibitors synergized with wild type and L-selectin enhanced T cells but had no effect in the absence of T cell transfers. Reduced tumor growth by L-selectin enhanced T cells correlated with increased frequency of CD8+ tumor infiltrating T cells 21 days after commencing therapy. Longitudinal tracking of Zirconium-89 (89Zr) labeled T cells using PET-CT showed that transferred T cells localize to tumors within 1 h and accumulate over the following 7 days. L-selectin did not promote T cell homing to tumors within 18 h of transfer, however the early activation marker CD69 was upregulated on L-selectin positive but not L-selectin knockout T cells. L-selectin positive and L-selectin knockout T cells homed equally well to tumor-draining lymph nodes and spleens. CD69 expression was upregulated on both L-selectin positive and L-selectin knockout T cells but was significantly higher on L-selectin expressing T cells, particularly in the spleen. Clonal expansion of isolated L-selectin enhanced T cells was slower, and L-selectin was linked to expression of proliferation marker Ki67. Together these findings demonstrate that maintaining L-selectin expression on tumor-specific T cells offers an advantage in mouse models of cancer immunotherapy. The beneficial role of L-selectin is unrelated to its' well-known role in T cell homing and, instead, linked to activation of therapeutic T cells inside tumors. These findings suggest that L-selectin may benefit clinical applications in T cell selection for cancer therapy and for modifying CAR-T cells to broaden their clinical scope.
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Affiliation(s)
- H. Angharad Watson
- Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Ruban R. P. Durairaj
- Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Julia Ohme
- Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Markella Alatsatianos
- Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Hanan Almutairi
- PET Imaging Centre, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Rebar N. Mohammed
- Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Miriam Vigar
- Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Sophie G. Reed
- Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Stephen J. Paisey
- PET Imaging Centre, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Christopher Marshall
- PET Imaging Centre, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Awen Gallimore
- Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom
- Systems Immunity Research Institute, Cardiff University, Cardiff, United Kingdom
| | - Ann Ager
- Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom
- Systems Immunity Research Institute, Cardiff University, Cardiff, United Kingdom
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15
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Mohammed RN, Wehenkel SC, Galkina EV, Yates EK, Preece G, Newman A, Watson HA, Ohme J, Bridgeman JS, Durairaj RRP, Moon OR, Ladell K, Miners KL, Dolton G, Troeberg L, Kashiwagi M, Murphy G, Nagase H, Price DA, Matthews RJ, Knäuper V, Ager A. ADAM17-dependent proteolysis of L-selectin promotes early clonal expansion of cytotoxic T cells. Sci Rep 2019; 9:5487. [PMID: 30940840 PMCID: PMC6445073 DOI: 10.1038/s41598-019-41811-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [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: 08/21/2018] [Accepted: 03/12/2019] [Indexed: 01/15/2023] Open
Abstract
L-selectin on T-cells is best known as an adhesion molecule that supports recruitment of blood-borne naïve and central memory cells into lymph nodes. Proteolytic shedding of the ectodomain is thought to redirect activated T-cells from lymph nodes to sites of infection. However, we have shown that activated T-cells re-express L-selectin before lymph node egress and use L-selectin to locate to virus-infected tissues. Therefore, we considered other roles for L-selectin proteolysis during T cell activation. In this study, we used T cells expressing cleavable or non-cleavable L-selectin and determined the impact of L-selectin proteolysis on T cell activation in virus-infected mice. We confirm an essential and non-redundant role for ADAM17 in TCR-induced proteolysis of L-selectin in mouse and human T cells and show that L-selectin cleavage does not regulate T cell activation measured by CD69 or TCR internalisation. Following virus infection of mice, L-selectin proteolysis promoted early clonal expansion of cytotoxic T cells resulting in an 8-fold increase over T cells unable to cleave L-selectin. T cells unable to cleave L-selectin showed delayed proliferation in vitro which correlated with lower CD25 expression. Based on these results, we propose that ADAM17-dependent proteolysis of L-selectin should be considered a regulator of T-cell activation at sites of immune activity.
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Affiliation(s)
- Rebar N Mohammed
- Divsion of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, CF14 4XN, UK
- College of Veterinary Medicine, University of Sulaimani, Sulaimani, Kurdistan, Iraq
| | - Sophie C Wehenkel
- Divsion of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, CF14 4XN, UK
| | - Elena V Galkina
- Francis Crick Institute, London, NW1 1AT, UK
- Department of Microbiology and Molecular Cell Biology, Eastern Virginia Medical School, Norfolk, VA, 23507, USA
| | | | | | - Andrew Newman
- Divsion of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, CF14 4XN, UK
| | - H Angharad Watson
- Divsion of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, CF14 4XN, UK
| | - Julia Ohme
- Divsion of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, CF14 4XN, UK
| | - John S Bridgeman
- Divsion of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, CF14 4XN, UK
| | - Ruban R P Durairaj
- Divsion of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, CF14 4XN, UK
| | - Owen R Moon
- Divsion of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, CF14 4XN, UK
| | - Kristin Ladell
- Divsion of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, CF14 4XN, UK
| | - Kelly L Miners
- Divsion of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, CF14 4XN, UK
| | - Garry Dolton
- Divsion of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, CF14 4XN, UK
| | - Linda Troeberg
- Norwich Medical School, University of East Anglia, Norwich, NR4 7UQ, UK
| | | | - Gillian Murphy
- University of Cambridge Depratment of Oncology, Cancer Research UK Cambridge Insitute, Li Ka Shing Centre, Cambridge, CB2 0RE, UK
| | - Hideaki Nagase
- Kennedy Institute of Rheumatology, University of Oxford, Oxford, OX3 7FY, UK
| | - David A Price
- Divsion of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, CF14 4XN, UK
- Systems Immunity Research Institute, Cardiff University, Heath Park, Cardiff, CF14 4XN, UK
| | - R James Matthews
- Divsion of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, CF14 4XN, UK
| | - Vera Knäuper
- School of Dentistry, Cardiff University, Heath Park, Cardiff, CF14 4XN, UK
| | - Ann Ager
- Divsion of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, CF14 4XN, UK.
- Systems Immunity Research Institute, Cardiff University, Heath Park, Cardiff, CF14 4XN, UK.
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16
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Mangare C, Tischer-Zimmermann S, Riese SB, Dragon AC, Prinz I, Blasczyk R, Maecker-Kolhoff B, Eiz-Vesper B. Robust Identification of Suitable T-Cell Subsets for Personalized CMV-Specific T-Cell Immunotherapy Using CD45RA and CD62L Microbeads. Int J Mol Sci 2019; 20:ijms20061415. [PMID: 30897843 PMCID: PMC6471767 DOI: 10.3390/ijms20061415] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 03/15/2019] [Accepted: 03/18/2019] [Indexed: 02/07/2023] Open
Abstract
Viral infections and reactivations remain a serious obstacle to successful hematopoietic stem cell transplantation (HSCT). When antiviral drug treatment fails, adoptive virus-specific T-cell transfer provides an effective alternative. Assuming that naive T cells (TN) are mainly responsible for GvHD, methods were developed to generate naive T-cell-depleted products while preserving immune memory against viral infections. We compared two major strategies to deplete potentially alloreactive T cells: CD45RA and CD62L depletion and analyzed phenotype and functionality of the resulting CD45RA-/CD62L- naive T-cell-depleted as well as CD45RA⁺/CD62L⁺ naive T-cell-enriched fractions in the CMV pp65 and IE1 antigen model. CD45RA depletion resulted in loss of terminally differentiated effector memory T cells re-expressing CD45RA (TEMRA), and CD62L depletion in loss of central memory T cells (TCM). Based on these differences in target cell-dependent and target cell-independent assays, antigen-specific T-cell responses in CD62L-depleted fraction were consistently 3⁻5 fold higher than those in CD45RA-depleted fraction. Interestingly, we also observed high donor variability in the CD45RA-depleted fraction, resulting in a substantial loss of immune memory. Accordingly, we identified donors with expected response (DER) and unexpected response (DUR). Taken together, our results showed that a naive T-cell depletion method should be chosen individually, based on the immunophenotypic composition of the T-cell populations present.
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Affiliation(s)
- Caroline Mangare
- Institute for Transfusion Medicine, Hannover Medical School, 30625 Hannover, Germany.
| | - Sabine Tischer-Zimmermann
- Institute for Transfusion Medicine, Hannover Medical School, 30625 Hannover, Germany.
- Integrated Research and Treatment Center (IFB-Tx), Hannover Medical School, 30625 Hannover, Germany.
| | - Sebastian B Riese
- Institute for Transfusion Medicine, Hannover Medical School, 30625 Hannover, Germany.
| | - Anna C Dragon
- Institute for Transfusion Medicine, Hannover Medical School, 30625 Hannover, Germany.
| | - Immo Prinz
- Institute of Immunology, Hannover Medical School, 30625 Hannover, Germany.
| | - Rainer Blasczyk
- Institute for Transfusion Medicine, Hannover Medical School, 30625 Hannover, Germany.
- Integrated Research and Treatment Center (IFB-Tx), Hannover Medical School, 30625 Hannover, Germany.
| | - Britta Maecker-Kolhoff
- Integrated Research and Treatment Center (IFB-Tx), Hannover Medical School, 30625 Hannover, Germany.
- Department of Pediatric Hematology and Oncology, Hannover Medical School, 30625 Hannover, Germany.
| | - Britta Eiz-Vesper
- Institute for Transfusion Medicine, Hannover Medical School, 30625 Hannover, Germany.
- Integrated Research and Treatment Center (IFB-Tx), Hannover Medical School, 30625 Hannover, Germany.
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17
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Osborn JF, Hobbs SJ, Mooster JL, Khan TN, Kilgore AM, Harbour JC, Nolz JC. Central memory CD8+ T cells become CD69+ tissue-residents during viral skin infection independent of CD62L-mediated lymph node surveillance. PLoS Pathog 2019; 15:e1007633. [PMID: 30875408 PMCID: PMC6420010 DOI: 10.1371/journal.ppat.1007633] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [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: 08/28/2018] [Accepted: 02/11/2019] [Indexed: 01/22/2023] Open
Abstract
Memory CD8+ T cells in the circulation rapidly infiltrate non-lymphoid tissues following infection and provide protective immunity in an antigen-specific manner. However, the subsequent fate of memory CD8+ T cells after entering non-lymphoid tissues such as the skin during a secondary infection is largely unknown. Furthermore, because expression of CD62L is often used to identify the central memory (TCM) CD8+ T cell subset, uncoupling the physical requirement for CD62L-mediated lymph node homing versus other functional attributes of TCM CD8+ T cells remains unresolved. Here, we show that in contrast to naïve CD8+ T cells, memory CD8+ T cells traffic into the skin independent of CD62L-mediated lymph node re-activation and provide robust protective immunity against Vaccinia virus (VacV) infection. TCM, but not effector memory (TEM), CD8+ T cells differentiated into functional CD69+/CD103- tissue residents following viral clearance, which was also dependent on local recognition of antigen in the skin microenvironment. Finally, we found that memory CD8+ T cells expressed granzyme B after trafficking into the skin and utilized cytolysis to provide protective immunity against VacV infection. Collectively, these findings demonstrate that TCM CD8+ T cells become cytolytic following rapid infiltration of the skin to protect against viral infection and subsequently differentiate into functional CD69+ tissue-residents.
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Affiliation(s)
- Jossef F. Osborn
- Department of Molecular Microbiology & Immunology, Oregon Health & Science University, Portland, Oregon, United States of America
| | - Samuel J. Hobbs
- Department of Molecular Microbiology & Immunology, Oregon Health & Science University, Portland, Oregon, United States of America
| | - Jana L. Mooster
- Department of Molecular Microbiology & Immunology, Oregon Health & Science University, Portland, Oregon, United States of America
| | - Tahsin N. Khan
- Department of Molecular Microbiology & Immunology, Oregon Health & Science University, Portland, Oregon, United States of America
| | - Augustus M. Kilgore
- Department of Molecular Microbiology & Immunology, Oregon Health & Science University, Portland, Oregon, United States of America
| | - Jake C. Harbour
- Department of Molecular Microbiology & Immunology, Oregon Health & Science University, Portland, Oregon, United States of America
| | - Jeffrey C. Nolz
- Department of Molecular Microbiology & Immunology, Oregon Health & Science University, Portland, Oregon, United States of America
- Department of Cell, Developmental & Cancer Biology, Oregon Health & Science University, Portland, Oregon, United States of America
- Radiation Medicine, Oregon Health & Science University, Portland, Oregon, United States of America
- * E-mail:
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18
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Managlia E, Liu SXL, Yan X, Tan XD, Chou PM, Barrett TA, De Plaen IG. Blocking NF-κB Activation in Ly6c + Monocytes Attenuates Necrotizing Enterocolitis. Am J Pathol 2019; 189:604-618. [PMID: 30593820 PMCID: PMC6412404 DOI: 10.1016/j.ajpath.2018.11.015] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 11/06/2018] [Accepted: 11/28/2018] [Indexed: 12/31/2022]
Abstract
Necrotizing enterocolitis (NEC) is a devastating disease affecting premature infants with intestinal inflammation and necrosis. The neonatal intestinal inflammatory response is rich in macrophages, and blood monocyte count is low in human NEC. We previously found that NF-κB mediates the intestinal injury in experimental NEC. However, the role of NF-κB in myeloid cells during NEC remains unclear. Herein, inhibitor of kappaB kinase β (IKKβ), a critical kinase mediating NF-κB activation, was deleted in lysozyme M (Lysm)-expressing cells, which were found to be Cd11b+Ly6c+ monocytes but not Cd11b+Ly6c- macrophages in the dam-fed neonatal mouse intestine. NEC induced differentiation of monocytes into intestinal macrophages and up-regulation of monocyte recruitment genes (eg, L-selectin) in the macrophage compartment in wild-type mice, but not in pups with IKKβ deletion in Lysm+ cells. Thus, NF-κB is required for NEC-induced monocyte activation, recruitment, and differentiation in neonatal intestines. Furthermore, pups with Lysm-IKKβ deletion had improved survival and decreased incidence of severe NEC compared with littermate controls. Decreased NEC severity was not associated with an improved intestinal barrier. In contrast, NEC was unabated in mice with IKKβ deletion in intestinal epithelial cells. Together, these data suggest that recruitment of Ly6c+ monocytes into the intestine, NF-κB activation in these cells, and differentiation of Ly6c+ monocytes into macrophages are critical cellular and molecular events in NEC development to promote disease.
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Affiliation(s)
- Elizabeth Managlia
- Center for Intestinal and Liver Inflammation Research, Stanley Manne Children's Research Institute, Northwestern University, Feinberg School of Medicine, Chicago, Illinois; Division of Neonatology, Department of Pediatrics, Ann & Robert H. Lurie Children's Hospital of Chicago, Stanley Manne Children's Research Institute, Northwestern University, Feinberg School of Medicine, Chicago, Illinois
| | - Shirley X L Liu
- Center for Intestinal and Liver Inflammation Research, Stanley Manne Children's Research Institute, Northwestern University, Feinberg School of Medicine, Chicago, Illinois; Division of Neonatology, Department of Pediatrics, Ann & Robert H. Lurie Children's Hospital of Chicago, Stanley Manne Children's Research Institute, Northwestern University, Feinberg School of Medicine, Chicago, Illinois
| | - Xiaocai Yan
- Center for Intestinal and Liver Inflammation Research, Stanley Manne Children's Research Institute, Northwestern University, Feinberg School of Medicine, Chicago, Illinois; Division of Neonatology, Department of Pediatrics, Ann & Robert H. Lurie Children's Hospital of Chicago, Stanley Manne Children's Research Institute, Northwestern University, Feinberg School of Medicine, Chicago, Illinois
| | - Xiao-Di Tan
- Center for Intestinal and Liver Inflammation Research, Stanley Manne Children's Research Institute, Northwestern University, Feinberg School of Medicine, Chicago, Illinois; Division of Gastroenterology, Department of Pediatrics, Ann & Robert H. Lurie Children's Hospital of Chicago, Stanley Manne Children's Research Institute, Northwestern University, Feinberg School of Medicine, Chicago, Illinois; Department of Pathology, Ann & Robert H. Lurie Children's Hospital of Chicago, Stanley Manne Children's Research Institute, Northwestern University, Feinberg School of Medicine, Chicago, Illinois
| | - Pauline M Chou
- Department of Pathology, Ann & Robert H. Lurie Children's Hospital of Chicago, Stanley Manne Children's Research Institute, Northwestern University, Feinberg School of Medicine, Chicago, Illinois
| | - Terrence A Barrett
- Division of Gastroenterology, Department of Internal Medicine, University of Kentucky, Lexington, Kentucky
| | - Isabelle G De Plaen
- Center for Intestinal and Liver Inflammation Research, Stanley Manne Children's Research Institute, Northwestern University, Feinberg School of Medicine, Chicago, Illinois; Division of Neonatology, Department of Pediatrics, Ann & Robert H. Lurie Children's Hospital of Chicago, Stanley Manne Children's Research Institute, Northwestern University, Feinberg School of Medicine, Chicago, Illinois.
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19
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Moraes JA, Frony AC, Barcellos-de-Souza P, Menezes da Cunha M, Brasil Barbosa Calcia T, Benjamim CF, Boisson-Vidal C, Barja-Fidalgo C. Downregulation of Microparticle Release and Pro-Inflammatory Properties of Activated Human Polymorphonuclear Neutrophils by LMW Fucoidan. J Innate Immun 2018; 11:330-346. [PMID: 30557873 PMCID: PMC6738154 DOI: 10.1159/000494220] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 09/21/2018] [Accepted: 09/21/2018] [Indexed: 12/16/2022] Open
Abstract
Exposition of neutrophils (polymorphonuclear neutrophils, PMNs) to bacterial products triggers exacerbated activation of these cells, increasing their harmful effects on host tissues. We evaluated the possibility of interfering with the classic immune innate responses of human PMNs exposed to bacterial endotoxin (lipopolysaccharide, LPS), and further stimulated with bacterial formyl peptide (N-formyl-methionine-leucine-phenylalanine, fMLP). We showed that the low- molecular-weight fucoidan (LMW-Fuc), a polysaccharide extracted from brown algae, attenuated the exacerbated activation induced by fMLP on LPS-primed PMNs, in vitro, impairing chemotaxis, NET formation, and the pro-survival and pro-oxidative effects. LMW-Fuc also inhibited the activation of canonical signaling pathways, AKT, bad, p47phox and MLC, activated by the exposition of PMN to bacterial products. The activation of PMN by sequential exposure to LPS and fMLP induced the release of L-selectin+ microparticles, which were able to trigger extracellular reactive oxygen species production by fresh PMNs and macrophages. Furthermore, we observed that LMW-Fuc inhibited microparticle release from activated PMN. In vivo experiments showed that circulating PMN-derived microparticles could be detected in mice exposed to bacterial products (LPS/fMLP), being downregulated in animals treated with LMW-Fuc. The data highlight the autocrine and paracrine role of pro-inflammatory microparticles derived from activated PMN and demonstrate the anti-inflammatory effects of LMW-Fuc on these cells.
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Affiliation(s)
- João Alfredo Moraes
- Laboratório de Farmacologia Celular e Molecular, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
- Laboratório de Biologia RedOx, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Ana Clara Frony
- Laboratório de Farmacologia Celular e Molecular, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Pedro Barcellos-de-Souza
- Laboratório de Farmacologia Celular e Molecular, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Marcel Menezes da Cunha
- Núcleo Multidisciplinar de Pesquisa em Biologia-NUMPEX-BIO, Universidade Federal do Rio de Janeiro, Xerém, Brazil
| | | | - Claudia Farias Benjamim
- Laboratório de Imunologia Molecular, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | | | - Christina Barja-Fidalgo
- Laboratório de Farmacologia Celular e Molecular, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil,
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20
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Domínguez-Luis MJ, Armas-González E, Herrera-García A, Arce-Franco M, Feria M, Vicente-Manzanares M, Martínez-Ruiz A, Sánchez-Madrid F, Díaz-González F. L-selectin expression is regulated by CXCL8-induced reactive oxygen species produced during human neutrophil rolling. Eur J Immunol 2018; 49:386-397. [PMID: 30443903 DOI: 10.1002/eji.201847710] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 09/21/2018] [Accepted: 10/29/2018] [Indexed: 12/11/2022]
Abstract
Neutrophils destroy invading microorganisms by phagocytosis by bringing them into contact with bactericidal substances, among which ROS are the most important. However, ROS also function as important physiological regulators of cellular signaling pathways. Here, we addressed the involvement of oxygen derivatives in the regulation of human neutrophil rolling, an essential component of the inflammatory response. Flow experiments using dihydroethidium-preloaded human neutrophils showed that these cells initiate an early production of intracellular ROS during the rolling phase of the adhesion cascade, a phenomenon that required cell rolling, and the interaction of the chemokine receptor CXCR2 with their ligand CXCL8. Flow cytometry experiments demonstrated that L-selectin shedding in neutrophils is triggered by ROS through an autocrine-paracrine mechanism. Preincubation of neutrophils with the NADPH oxidase complex inhibitor diphenyleniodonium chloride significantly increased the number of rolling neutrophils on endothelial cells. Interestingly, the same effect was observed when CXCL8 signaling was interfered using either a blocking monoclonal antibody or an inhibitor of its receptor. These findings indicate that, in response to CXCL8, neutrophils initiate ROS production during the rolling phase of the inflammatory response. This very early ROS production might participate in the modulation of the inflammatory response by inducing L-selectin shedding in neutrophils.
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Affiliation(s)
| | | | - Ada Herrera-García
- Servicio de Reumatología, Hospital Universitario de Canarias, La Laguna, Spain
| | - María Arce-Franco
- Servicio de Reumatología, Hospital Universitario de Canarias, La Laguna, Spain
| | - Manuel Feria
- Departamento de Farmacología, Facultad de Medicina, Universidad de La Laguna, La Laguna, Spain
| | | | - Antonio Martínez-Ruiz
- Servicio de Inmunología, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IP), Madrid, Spain
- Centro de Investigaciones Biomedicas en Red en Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain
| | - Francisco Sánchez-Madrid
- Servicio de Inmunología, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IP), Madrid, Spain
- Centro de Investigaciones Biomedicas en Red en Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain
| | - Federico Díaz-González
- Servicio de Reumatología, Hospital Universitario de Canarias, La Laguna, Spain
- Departamento de Medicina, Facultad de Medicina, Universidad de La Laguna, Tenerife, Spain
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21
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van Staveren S, ten Haaf T, Klöpping M, Hilvering B, Tinnevelt GH, de Ruiter K, Piacentini MF, Roelands B, Meeusen R, de Koning JJ, Jansen JJ, Vrisekoop N, Koenderman L. Multi-dimensional flow cytometry analysis reveals increasing changes in the systemic neutrophil compartment during seven consecutive days of endurance exercise. PLoS One 2018; 13:e0206175. [PMID: 30376575 PMCID: PMC6207321 DOI: 10.1371/journal.pone.0206175] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [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: 07/27/2018] [Accepted: 10/08/2018] [Indexed: 12/30/2022] Open
Abstract
Endurance exercise is associated with a transient increase in neutrophil counts in the peripheral blood. Here we investigate the impact of intensified endurance exercise on the neutrophil compartment. We hypothesized that intensified endurance exercise leads to mobilization of neutrophil subsets, which are normally absent in the blood. Furthermore, we followed the potential build-up of neutrophil activation and the impact on overnight recovery of the neutrophil compartment during a seven-day cycling tour. The neutrophil compartment was studied in 28 healthy amateur cyclists participating in an eight-day strenuous cycling tour. Blood samples were taken at baseline, after 4 days and after 7 days of cycling. The neutrophil compartment was analyzed in terms of numbers and its phenotype by deep phenotyping of flow cytometry data with the multi-dimensional analysis method FLOOD. Repeated endurance exercise led to a gradual increase in total neutrophil counts over the days leading to a 1.26 fold-increase (95%CI 1.01–1.51 p = 0.0431) in the morning of day 8. Flow cytometric measurements revealed the appearance of 2 additional neutrophil subsets: CD16brightCD62Ldim and CD16dimCD62Lbright. A complex change in neutrophil phenotypes was present characterized by decreased expression of both CD11b and CD62L and marked increased expression of LAIR-1, VLA-4 and CBRM1/5. The changes in expression were found on all neutrophils present in the blood. Strikingly, in strong contrast to our findings during acute inflammation evoked by LPS challenge, these neutrophils did not upregulate classical degranulation markers. In fact, our FLOOD analysis revealed that the exercise induced neutrophil phenotype did not overlap with the neutrophil subsets arising upon acute inflammation. In conclusion, during multiple days of endurance exercise the neutrophil compartment does not regain homeostasis overnight. Thereby our study supports the concept of a build-up of inflammatory cues during repeated endurance exercise training, causing a prolonged change of the systemic neutrophil compartment.
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Affiliation(s)
- Selma van Staveren
- Department of Respiratory Medicine, Laboratory of Translational Immunology, UMC Utrecht, Utrecht, The Netherlands
- TI-COAST, Amsterdam, The Netherlands
| | - Twan ten Haaf
- Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, MOVE Research Institute Amsterdam, Amsterdam, The Netherlands
| | - Margot Klöpping
- Department of Respiratory Medicine, Laboratory of Translational Immunology, UMC Utrecht, Utrecht, The Netherlands
| | - Bart Hilvering
- Department of Respiratory Medicine, Laboratory of Translational Immunology, UMC Utrecht, Utrecht, The Netherlands
| | - Gerjen H. Tinnevelt
- TI-COAST, Amsterdam, The Netherlands
- Analytical Chemistry, Institute for Molecules and Materials, Radboud University Nijmegen, Nijmegen, The Netherlands
| | - Karin de Ruiter
- Department of Parasitology, LUMC Leiden, Leiden, The Netherlands
| | - Maria F. Piacentini
- Department of Human Movement and Sport Sciences, University of Rome “Foro Italico”, Rome, Italy
| | - Bart Roelands
- Human Physiology Research Group, Vrije Universiteit Brussel, Brussels, Belgium
| | - Romain Meeusen
- Human Physiology Research Group, Vrije Universiteit Brussel, Brussels, Belgium
- School of Public Health, Tropical Medicine and Rehabilitation Sciences, James Cook University, Townsville, Queensland, Australia
| | - Jos J. de Koning
- Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, MOVE Research Institute Amsterdam, Amsterdam, The Netherlands
- Department of Exercise and Sports Science, University of Wisconsin-La Crosse, La Crosse, WI, United States of America
| | - Jeroen J. Jansen
- Analytical Chemistry, Institute for Molecules and Materials, Radboud University Nijmegen, Nijmegen, The Netherlands
| | - Nienke Vrisekoop
- Department of Respiratory Medicine, Laboratory of Translational Immunology, UMC Utrecht, Utrecht, The Netherlands
| | - Leo Koenderman
- Department of Respiratory Medicine, Laboratory of Translational Immunology, UMC Utrecht, Utrecht, The Netherlands
- * E-mail:
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22
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Withers SS, Moore PF, Chang H, Choi JW, McSorley SJ, Kent MS, Monjazeb AM, Canter RJ, Murphy WJ, Sparger EE, Rebhun RB. Multi-color flow cytometry for evaluating age-related changes in memory lymphocyte subsets in dogs. Dev Comp Immunol 2018; 87:64-74. [PMID: 29859828 PMCID: PMC6197816 DOI: 10.1016/j.dci.2018.05.022] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [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: 04/18/2018] [Revised: 05/29/2018] [Accepted: 05/30/2018] [Indexed: 06/08/2023]
Abstract
While dogs are increasingly being utilized as large-animal models of disease, important features of age-related immunosenescence in the dog have yet to be evaluated due to the lack of defined naïve vs. memory T lymphocyte phenotypes. We therefore performed multi-color flow cytometry on peripheral blood mononuclear cells from young and aged beagles, and determined the differential cytokine production by proposed memory subsets. CD4+ and CD8+ T lymphocytes in aged dogs displayed increased cytokine production, and decreased proliferative capacity. Antibodies targeting CD45RA and CD62L, but less so CD28 or CD44, defined canine cells that consistently exhibited properties of naïve-, central memory-, effector memory-, and terminal effector-like CD4+ and CD8+ T lymphocyte subsets. Older dogs demonstrated decreased frequencies of naïve-like CD4+ and CD8+ T lymphocytes, and an increased frequency of terminal effector-like CD8+ T lymphocytes. Overall findings revealed that aged dogs displayed features of immunosenescence similar to those reported in other species.
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Affiliation(s)
- Sita S Withers
- Center for Companion Animal Health, Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California-Davis, One Shields Avenue, Davis, CA 95616, USA
| | - Peter F Moore
- Department of Pathology, Microbiology, and Immunology, School of Veterinary Medicine, University of California-Davis, One Shields Avenue, Davis, CA 95616, USA
| | - Hong Chang
- Center for Companion Animal Health, Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California-Davis, One Shields Avenue, Davis, CA 95616, USA
| | - Jin W Choi
- Center for Comparative Medicine, Department of Anatomy, Physiology and Cell Biology, School of Veterinary Medicine, University of California-Davis, County Road 98 & Hutchison Drive, Davis, CA 95616, USA
| | - Stephen J McSorley
- Center for Comparative Medicine, Department of Anatomy, Physiology and Cell Biology, School of Veterinary Medicine, University of California-Davis, County Road 98 & Hutchison Drive, Davis, CA 95616, USA
| | - Michael S Kent
- Center for Companion Animal Health, Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California-Davis, One Shields Avenue, Davis, CA 95616, USA
| | - Arta M Monjazeb
- Comprehensive Cancer Center, Department of Radiation Oncology, School of Medicine, University of California-Davis, 4501 X Street, G-140, Sacramento, CA 95817, USA
| | - Robert J Canter
- Comprehensive Cancer Center, Department of Surgery, School of Medicine, University of California-Davis, 4501 X Street, G-140, Sacramento, CA 95817, USA
| | - William J Murphy
- Department of Dermatology, School of Medicine, University of California-Davis, 2921 Stockton Blvd, Sacramento, CA 95716, USA
| | - Ellen E Sparger
- Department of Medicine and Epidemiology, School of Veterinary Medicine, University of California-Davis, One Shields Avenue, Davis, CA 95616, USA.
| | - Robert B Rebhun
- Center for Companion Animal Health, Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California-Davis, One Shields Avenue, Davis, CA 95616, USA.
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23
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Palkola NV, Pakkanen SH, Heikinheimo O, Kantele JM, Kantele A. Circulating pathogen-specific plasmablasts in female patients with upper genital tract infection. J Reprod Immunol 2018. [PMID: 29525428 DOI: 10.1016/j.jri.2018.02.005] [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] [Indexed: 11/18/2022]
Abstract
Mucosal antibodies constitute the first line of adaptive immune defence against invaders in the female genital tract (FGT), yet the sequence of events leading to their production is surprisingly poorly characterized. We explored the induction of pathogen-specific antibody-secreting cells (ASC) as a response to an acute infection in the upper FGT. We recruited 12 patients undergoing surgery due to an upper FGT infection (7/12 blood culture positive, 5/12 negative) and six healthy controls. Pathogens were sampled during surgery and PBMC collected in the acute phase of the disease (days 7-10). We searched by ELISPOT circulating pathogen-specific ASC and explored their frequency, immunoglobulin isotype distribution, and expressions of homing receptors (α4β7, L-selectin, and CLA). All patients had circulating ASC specific to the infective bacteria; the geometric mean was 434 (95%CI 155-1234) ASC (IgA + IgG + IgM)/106 PBMC. IgA ASC predominated in 7/12, IgG ASC in 3/12, and IgM ASC in 2/12 cases. Of all the pathogen-specific ASC, 60% expressed α4β7, 67% L-selectin, and 9% CLA. This study is the first to show induction of pathogen-specific ASC in the peripheral blood in bacterial infection in the human FGT. Our findings reveal that such FGT-originating pathogen-specific ASC are predominated by IgA ASC and exhibit a homing receptor profile resembling that of ASC in acute urinary tract infection. The data thus suggest a characteristic profile shared by the urogenital tract.
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Affiliation(s)
- Nina V Palkola
- Department of Bacteriology and Immunology, University of Helsinki, Helsinki, Finland
| | - Sari H Pakkanen
- Department of Bacteriology and Immunology, University of Helsinki, Helsinki, Finland
| | - Oskari Heikinheimo
- Department of Obstetrics and Gynaecology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Jussi M Kantele
- Occupational Health and Environmental Medicine, University of Turku, Turku, Finland
| | - Anu Kantele
- Inflammation Center, Clinic of Infectious Diseases, University of Helsinki and Helsinki University Hospital, Helsinki, Finland; Unit of Infectious Diseases, Department of Medicine/Solna, Karolinska Institutet, Stockholm, Sweden.
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24
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Abstract
High endothelial venules (HEVs) are structurally distinct blood vessels that develop during embryonic and neonatal life in all secondary lymphoid organs except the spleen. HEVs are critical for initiating and maintaining immune responses because they extract naïve and memory lymphocytes from the bloodstream, regardless of antigen receptor specificity, and deliver them to antigen-presenting cells inside lymph nodes under homeostatic conditions. HEVs also develop postnatally in nonlymphoid organs during chronic inflammation driven by autoimmunity, infection, allografts, and cancer. Extranodal HEVs are usually surrounded by dense lymphocytic infiltrates organized into lymph-node like, T- and B-cell-rich areas called tertiary lymphoid structures (TLS). HEV neogenesis is thought to facilitate the generation of tissue-destroying lymphocytes inside chronically inflamed tissues and cancers.We are studying the mechanisms underpinning HEV neogenesis in solid cancers and the role of homeostatic T-cell trafficking in controlling cancer immunity. In this chapter we describe methods for identifying HEV in tissue sections of cancerous tissues in humans and mice using immunohistochemical staining for the HEV-specific marker peripheral lymph node addressin (PNAd). L-selectin binding to PNAd is a necessary first step in homeostatic lymphocyte trafficking which is the defining function of HEV. We also describe methods to measure L-selectin-dependent homing of lymphocytes from the bloodstream into lymphoid tissues and tumors in preclinical cancer models.
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Affiliation(s)
- Emma Jones
- Division of Infection and Immunity, School of Medicine and Systems Immunity Research Institute, Cardiff University, Heath Park, Cardiff, UK.
| | - Awen Gallimore
- Division of Infection and Immunity, School of Medicine and Systems Immunity Research Institute, Cardiff University, Heath Park, Cardiff, UK
| | - Ann Ager
- Division of Infection and Immunity, School of Medicine and Systems Immunity Research Institute, Cardiff University, Heath Park, Cardiff, UK
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25
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Hughes HD, Carroll JA, Burdick Sanchez NC, Roberts SL, Broadway PR, May ND, Ballou MA, Richeson JT. Effects of dexamethasone treatment and respiratory vaccination on rectal temperature, complete blood count, and functional capacities of neutrophils in beef steers. J Anim Sci 2017; 95:1502-1511. [PMID: 28464105 DOI: 10.2527/jas.2017.1374] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The objective of this research was to examine the effects of dexamethasone (DEX) treatment on various aspects of immunity following administration of a multivalent respiratory vaccine, using a model intended to mimic acute versus chronic stress. Angus × Hereford steers ( = 32; 209 ± 8 kg) were stratified by BW and randomly assigned to 1 of 3 treatments: 1) acute stress (ACU), in which 0.5 mg/kg BW DEX was intravenously administered at 1000 h only on d 0; 2) chronic stress (CHR), in which 0.5 mg/kg BW DEX was intravenously administered at 1000 h on d -3 to 0; or 3) control (CON), in which no DEX was administered. Steers were fitted with indwelling jugular catheters and rectal temperature (RT) recording devices on d -4 relative to vaccination and placed in individual stanchions in an environmentally controlled facility. Blood samples were collected and serum was isolated at -74, -50, and -26 h; at 0.5-h intervals from -4 to 6 h; and at 12, 24, 36, 48, and 72 h relative to multivalent respiratory vaccination at 1200 h on d 0. Additional blood samples were used to analyze complete blood cell count (CBC) and functional capacities of neutrophils. There was a treatment × time interaction ( < 0.01) for RT such that DEX treatment in CHR and ACU steers decreased RT on d -3 and 0, respectively. A treatment × time interaction ( < 0.01) was observed for total white blood cells (WBC), neutrophils, lymphocytes, and monocytes. Specifically, DEX increased WBC and neutrophils in CHR and ACU steers ( < 0.001) yet decreased lymphocytes in CHR steers ( = 0.02) compared with CON steers. Neutrophil concentration increased rapidly, within 2 h of the DEX infusion, in ACU steers. Monocytes transiently increased ( < 0.001) in response to DEX treatment in CHR and ACU steers. In contrast, eosinophils were greater ( < 0.01) in CON steers than in ACU and CHR steers. A treatment × time interaction ( = 0.004) was observed for interferon-γ, with CON cattle exhibiting greater concentrations than the ACU and CHR cattle at 5 h after vaccination, through d 3. Treatment also influenced ( ≤ 0.001) the expression of L-selectin on the surface of neutrophils. The percentage of neutrophils engaging in phagocytosis and the oxidative burst were suppressed ( ≤ 0.001) among only the CHR steers, whereas the intensity of the oxidative burst was suppressed ( ≤ 0.001) for both ACU and CHR steers. These data suggest that our model induced acute and chronic immunosuppression and defined the acute response to a multivalent vaccine in CON steers.
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Ye Z, Liu J, Zheng J, Zhang J, Huang R. L-selectin Promotes the Maturation of Dendritic Cells via Up-regulation the Expression of TLR4 in vitro. Ann Clin Lab Sci 2017; 47:389-394. [PMID: 28801363] [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: 06/07/2023]
Abstract
The relationship between dendritic cells (DCs) and L-selectin in the progress of atherosclerosis is unclear. Here, we used L-selectin co-cultured with DCs to investigate the effect of L-selectin on the maturation of DCs in vitro Monocytes derived DCs were isolated and cultured from human peripheral blood. After being stimulated with L-selectin and/or its antagonist for 24-48 hours, the feather of cells was observed by the electron microscope. The expression of mature antigens CD1a, CD80, CD83, and CD86 were investigated by flow cytometric analysis (FACS). RT-PCR and FACS were used to detect the mRNA and protein expression of Toll-like receptor 4(TLR-4). We found that only the cells of giving L-selectin have the mature special feature for irregular shapes. DCs which were stimulated by L-selectin have a larger number of expressing CD1a, CD80, CD83, and CD86 compared with non-stimulated and cultured with L-selectin antagonist. The transcript levels of TLR4 were significantly higher after L-selectin and lipopolysaccharide (LPS) stimulated. And the antagonist of L-selectin can deeply decrease the expression of CD1a, CD80, CD83, and CD86 on DCs appeared to coincide with the level of TLR4 transcription. The results demonstrate L-selectin can promote the maturation of DCs via up-regulation the expression of TLR4.
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Affiliation(s)
- Zhishuai Ye
- Department of Cardiology, The First Affiliated Hospital of Dalian Medical University, Dalian City, China
| | - Jia Liu
- Department of Cardiology, The First Affiliated Hospital of Dalian Medical University, Dalian City, China
| | - Jie Zheng
- Department of Cardiology, The First Affiliated Hospital of Dalian Medical University, Dalian City, China
| | - Jianing Zhang
- College of Life Sciences and Pharmacy, Dalian University of Technology, Dalian City, China
| | - Rongchong Huang
- Department of Cardiology, The First Affiliated Hospital of Dalian Medical University, Dalian City, China
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Carlson GE, Martin EW, Shirure VS, Malgor R, Resto VA, Goetz DJ, Burdick MM. Dynamic biochemical tissue analysis detects functional L-selectin ligands on colon cancer tissues. PLoS One 2017; 12:e0173747. [PMID: 28282455 PMCID: PMC5345883 DOI: 10.1371/journal.pone.0173747] [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: 11/22/2016] [Accepted: 02/24/2017] [Indexed: 12/31/2022] Open
Abstract
A growing body of evidence suggests that L-selectin ligands presented on circulating tumor cells facilitate metastasis by binding L-selectin presented on leukocytes. Commonly used methods for detecting L-selectin ligands on tissues, e.g., immunostaining, are performed under static, no-flow conditions. However, such analysis does not assay for functional L-selectin ligands, specifically those ligands that promote adhesion under shear flow conditions. Recently our lab developed a method, termed dynamic biochemical tissue analysis (DBTA), to detect functional selectin ligands in situ by probing tissues with L-selectin-coated microspheres under hemodynamic flow conditions. In this investigation, DBTA was used to probe human colon tissues for L-selectin ligand activity. The detection of L-selectin ligands using DBTA was highly specific. Furthermore, DBTA reproducibly detected functional L-selectin ligands on diseased, e.g., cancerous or inflamed, tissues but not on noncancerous tissues. In addition, DBTA revealed a heterogeneous distribution of functional L-selectin ligands on colon cancer tissues. Most notably, detection of L-selectin ligands by immunostaining using HECA-452 antibody only partially correlated with functional L-selectin ligands detected by DBTA. In summation, the results of this study demonstrate that DBTA detects functional selectin ligands to provide a unique characterization of pathological tissue.
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Affiliation(s)
- Grady E. Carlson
- Department of Chemical and Biomolecular Engineering, Russ College of Engineering and Technology, Ohio University, Athens, Ohio, United States of America
- Biomedical Engineering Program, Russ College of Engineering and Technology, Ohio University, Athens, Ohio, United States of America
| | - Eric W. Martin
- Department of Chemical and Biomolecular Engineering, Russ College of Engineering and Technology, Ohio University, Athens, Ohio, United States of America
- Biomedical Engineering Program, Russ College of Engineering and Technology, Ohio University, Athens, Ohio, United States of America
| | - Venktesh S. Shirure
- Department of Chemical and Biomolecular Engineering, Russ College of Engineering and Technology, Ohio University, Athens, Ohio, United States of America
| | - Ramiro Malgor
- Biomedical Engineering Program, Russ College of Engineering and Technology, Ohio University, Athens, Ohio, United States of America
- Biomedical Sciences, Heritage College of Osteopathic Medicine, Ohio University, Athens, Ohio, United States of America
| | - Vicente A. Resto
- Department of Otolaryngology, University of Texas-Medical Branch, Galveston, Texas, United States of America
| | - Douglas J. Goetz
- Department of Chemical and Biomolecular Engineering, Russ College of Engineering and Technology, Ohio University, Athens, Ohio, United States of America
- Biomedical Engineering Program, Russ College of Engineering and Technology, Ohio University, Athens, Ohio, United States of America
| | - Monica M. Burdick
- Department of Chemical and Biomolecular Engineering, Russ College of Engineering and Technology, Ohio University, Athens, Ohio, United States of America
- Biomedical Engineering Program, Russ College of Engineering and Technology, Ohio University, Athens, Ohio, United States of America
- Edison Biotechnology Institute, Ohio University, Athens, Ohio, United States of America
- * E-mail:
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Abstract
Neutrophils are key effector cells of the innate immune system and are involved in the host defense against invading pathogens such as viruses. Recently, it was reported that HIV-1-neutrophil interaction triggers neutrophil activation and promotes expression of Toll-like receptors (TLRs). Here, we assessed the role of single-stranded RNA40 (ssRNA40) derived from HIV-1 in neutrophil activation. We observed functional activation of neutrophils in response to HIV-1-derived ssRNA40 based on the expression of TLR7/8, RIG-I, and MDA5, induction of cytokines (IL-6 and TNF-α), and the production of reactive oxygen species (ROS). Additionally, ssRNA40 promoted the expression of CD62L and TNF-α and the production of ROS in the presence of the TLR2 agonist Pam2CSK4. ssRNA40 together with R848 (a TLR7/8 agonist) increased CD11b expression but decreased CD62L expression. Furthermore, decreased IL-6 expression was observed in the presence of the TLR4 agonist LPS. Finally, we found that ssRNA40 promotes RIG-I and MDA5 expression in the presence of the TLR2, TLR4 and TLR7/8 agonists. This study demonstrates a functional response of TLRs in neutrophils challenged with ssRNA40, suggesting that TLRs could be involved in the innate immune response observed during HIV infection, which might be mediated by its genome.
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Affiliation(s)
- Diana M Giraldo
- Grupo Inmunovirologia, Facultad de Medicina, Universidad de Antioquia UdeA, calle 70 No. 52-21, Medellín, Colombia
| | - Juan C Hernandez
- Infettare, Facultad de Medicina, Universidad Cooperativa de Colombia, Medellín, Colombia
| | - Silvio Urcuqui-Inchima
- Grupo Inmunovirologia, Facultad de Medicina, Universidad de Antioquia UdeA, calle 70 No. 52-21, Medellín, Colombia.
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Faivre V, Lukaszewicz AC, Payen D. Downregulation of Blood Monocyte HLA-DR in ICU Patients Is Also Present in Bone Marrow Cells. PLoS One 2016; 11:e0164489. [PMID: 27893741 PMCID: PMC5125574 DOI: 10.1371/journal.pone.0164489] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [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: 04/14/2016] [Accepted: 09/26/2016] [Indexed: 11/19/2022] Open
Abstract
Background The downregulation of blood monocyte HLA-DR expression also occurs in tissue infiltrative cells in a context of acute clinical inflammation, especially sepsis. This context favors the development of secondary infections and results from various mechanisms. Little is known about HLA-DR expression on bone marrow (BM) cells of the monocyte lineage, the source of circulating monocytes. This study analyzed the BM HLA-DR expression in ICU patients compared to BM monocytes from non-ICU patients and to blood monocytes of control healthy donors. A potential dysfunction of myeloid differentiation was investigated in a sub-population of these ICU patients to characterize the phenotype of the immature forms of monocytes and granulocytes in BM. Methods and Findings BM and blood were drawn from 33 ICU and 9 non-ICU patients having a BM analysis to precise the etiology of abnormal low count in blood cells. The data were compared with blood cells of 28 control donors. Flow cytometry was used for both HLA-DR expression and phenotyping of immature forms of monocytes and granulocytes. HLA-DR expression was downregulated in both blood and BM monocyte in ICU patients compared to BM of non-ICU patients and blood of control donors. Amplitude of HLA-DR downregulation was comparable in septic and non-septic ICU patients. The phenotype of immature forms of monocytes and granulocytes in BM (n = 11) did not show abnormal myeloid (monocyte + granulocyte) differentiation. Conclusion The downregulation of HLA-DR in BM monocyte lineage is present in ICU patients without major changes in myeloid cells. It may result from a regulation mediated by soluble and/or neuro-endocrine factors present in BM cell microenvironment.
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Affiliation(s)
- Valérie Faivre
- Inserm, U 1160, Paris, France
- University Paris Diderot, Sorbonne Paris Cité, Paris, France
| | - Anne-Claire Lukaszewicz
- Inserm, U 1160, Paris, France
- University Paris Diderot, Sorbonne Paris Cité, Paris, France
- AP-HP, Hôpital Lariboisière, Département d’Anesthésie - Réanimation - SMUR, Paris, France
| | - Didier Payen
- Inserm, U 1160, Paris, France
- University Paris Diderot, Sorbonne Paris Cité, Paris, France
- AP-HP, Hôpital Lariboisière, Département d’Anesthésie - Réanimation - SMUR, Paris, France
- * E-mail:
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30
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Abstract
Altered expression or function of adhesion molecules on leukaemic blasts may contribute to the evolution and biological behaviour of acute leukaemia. This work studies the expression of CD54 and CD62L by lymphoid cells and the serum level of the shed form of L-selectin (sL-selectin) in children with acute lymphoblastic leukaemia (ALL) at initial diagnosis and after first remission, and their relationship to disease activity and subtype. The study is conducted on 20 children (age range 2-10 years) newly diagnosed with ALL and admitted to Alexandria University Children's Hospital. Ten apparently healthy children of matched age and sex serve as a control group. Expression of CD54 and CD62L on mononuclear cells is detected by monoclonal antibodies using flow cytometry. Serum sL-selectin is measured by enzyme-linked immunosorbent assay (ELISA). B-cell ALL was the most common subtype (45%), followed by T-ALL (35%) and C-ALL (20%). CD54 and CD62L mean cellular expression, as well as serum sL-selectin level, were significantly higher at diagnosis than both after remission and in the control group. Univariate analysis showed that the presence of mediastinal mass, high leucocyte count, central nervous system involvement and low CD54 were significant predictors of mortality in children with ALL.
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Affiliation(s)
- F M Hafez
- Department of Pediatrics, Faculty of Medicine, Alexandria University, Egypt
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31
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Jung Y, Riven I, Feigelson SW, Kartvelishvily E, Tohya K, Miyasaka M, Alon R, Haran G. Three-dimensional localization of T-cell receptors in relation to microvilli using a combination of superresolution microscopies. Proc Natl Acad Sci U S A 2016; 113:E5916-E5924. [PMID: 27647916 PMCID: PMC5056101 DOI: 10.1073/pnas.1605399113] [Citation(s) in RCA: 126] [Impact Index Per Article: 15.8] [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] [Indexed: 11/18/2022] Open
Abstract
Leukocyte microvilli are flexible projections enriched with adhesion molecules. The role of these cellular projections in the ability of T cells to probe antigen-presenting cells has been elusive. In this study, we probe the spatial relation of microvilli and T-cell receptors (TCRs), the major molecules responsible for antigen recognition on the T-cell membrane. To this end, an effective and robust methodology for mapping membrane protein distribution in relation to the 3D surface structure of cells is introduced, based on two complementary superresolution microscopies. Strikingly, TCRs are found to be highly localized on microvilli, in both peripheral blood human T cells and differentiated effector T cells, and are barely found on the cell body. This is a decisive demonstration that different types of T cells universally localize their TCRs to microvilli, immediately pointing to these surface projections as effective sensors for antigenic moieties. This finding also suggests how previously reported membrane clusters might form, with microvilli serving as anchors for specific T-cell surface molecules.
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Affiliation(s)
- Yunmin Jung
- Department of Chemical Physics, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Inbal Riven
- Department of Chemical Physics, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Sara W Feigelson
- Department of Immunology, Weizmann Institute of Science, Rehovot 76100, Israel
| | | | - Kazuo Tohya
- Department of Anatomy, Kansai University of Health Sciences, Kumatori, Osaka 590-0482, Japan
| | - Masayuki Miyasaka
- Institute for Academic Initiatives, Osaka University, Suita, Osaka 565-0871, Japan; MediCity Research Laboratory, University of Turku, FI-20521, Turku, Finland
| | - Ronen Alon
- Department of Immunology, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Gilad Haran
- Department of Chemical Physics, Weizmann Institute of Science, Rehovot 76100, Israel;
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Mesnil C, Raulier S, Paulissen G, Xiao X, Birrell MA, Pirottin D, Janss T, Starkl P, Ramery E, Henket M, Schleich FN, Radermecker M, Thielemans K, Gillet L, Thiry M, Belvisi MG, Louis R, Desmet C, Marichal T, Bureau F. Lung-resident eosinophils represent a distinct regulatory eosinophil subset. J Clin Invest 2016; 126:3279-95. [PMID: 27548519 DOI: 10.1172/jci85664] [Citation(s) in RCA: 326] [Impact Index Per Article: 40.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Accepted: 06/09/2016] [Indexed: 12/21/2022] Open
Abstract
Increases in eosinophil numbers are associated with infection and allergic diseases, including asthma, but there is also evidence that eosinophils contribute to homeostatic immune processes. In mice, the normal lung contains resident eosinophils (rEos), but their function has not been characterized. Here, we have reported that steady-state pulmonary rEos are IL-5-independent parenchymal Siglec-FintCD62L+CD101lo cells with a ring-shaped nucleus. During house dust mite-induced airway allergy, rEos features remained unchanged, and rEos were accompanied by recruited inflammatory eosinophils (iEos), which were defined as IL-5-dependent peribronchial Siglec-FhiCD62L-CD101hi cells with a segmented nucleus. Gene expression analyses revealed a more regulatory profile for rEos than for iEos, and correspondingly, mice lacking lung rEos showed an increase in Th2 cell responses to inhaled allergens. Such elevation of Th2 responses was linked to the ability of rEos, but not iEos, to inhibit the maturation, and therefore the pro-Th2 function, of allergen-loaded DCs. Finally, we determined that the parenchymal rEos found in nonasthmatic human lungs (Siglec-8+CD62L+IL-3Rlo cells) were phenotypically distinct from the iEos isolated from the sputa of eosinophilic asthmatic patients (Siglec-8+CD62LloIL-3Rhi cells), suggesting that our findings in mice are relevant to humans. In conclusion, our data define lung rEos as a distinct eosinophil subset with key homeostatic functions.
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Cheng HY, Gaddis DE, Wu R, McSkimming C, Haynes LD, Taylor AM, McNamara CA, Sorci-Thomas M, Hedrick CC. Loss of ABCG1 influences regulatory T cell differentiation and atherosclerosis. J Clin Invest 2016; 126:3236-46. [PMID: 27482882 DOI: 10.1172/jci83136] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2015] [Accepted: 06/02/2016] [Indexed: 01/09/2023] Open
Abstract
ATP-binding cassette transporter G1 (ABCG1) promotes cholesterol accumulation and alters T cell homeostasis, which may contribute to progression of atherosclerosis. Here, we investigated how the selective loss of ABCG1 in T cells impacts atherosclerosis in LDL receptor-deficient (LDLR-deficient) mice, a model of the disease. In LDLR-deficient mice fed a high-cholesterol diet, T cell-specific ABCG1 deficiency protected against atherosclerotic lesions. Furthermore, T cell-specific ABCG1 deficiency led to a 30% increase in Treg percentages in aorta and aorta-draining lymph nodes (LNs) of these mice compared with animals with only LDLR deficiency. When Abcg1 was selectively deleted in Tregs of LDLR-deficient mice, we observed a 30% increase in Treg percentages in aorta and aorta-draining LNs and reduced atherosclerosis. In the absence of ABCG1, intracellular cholesterol accumulation led to downregulation of the mTOR pathway, which increased the differentiation of naive CD4 T cells into Tregs. The increase in Tregs resulted in reduced T cell activation and increased IL-10 production by T cells. Last, we found that higher ABCG1 expression in Tregs was associated with a higher frequency of these cells in human blood samples. Our study indicates that ABCG1 regulates T cell differentiation into Tregs, highlighting a pathway by which cholesterol accumulation can influence T cell homeostasis in atherosclerosis.
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Liu J, He X, Zhen P, Zhou S, Li X. [Inflammatory cytokines and oxidative stress markers in the inhibition of osteoarthritis by curcumin]. Zhejiang Da Xue Xue Bao Yi Xue Ban 2016; 45:461-468. [PMID: 28087905 PMCID: PMC10396913 DOI: 10.3785/j.issn.1008-9292.2016.09.03] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Objective: To observe the influence of matrix metalloproteinases-2 (MMP-2), monocyte chemoattractant protein-1 (MCP-1), CD47, L-selectin and advanced oxidation proteinproducts (AOPP) in osteoarthritis and the intervention of curcumin. Methods: A total of 20 male C57BL/6 mice (10.05-15.00 g) were randomly divided into control group, OA group, Cur25 group and Cur50 group (intraperitoneal injected 25 μmol/L or 50 μmol/L of curcumin everyday after modeling). After 4 weeks treatment, we observed the morphological changes of the gross specimen by immunohistochemical method, and observed the ultrastructure of cartilage tissue under electron microscope. The expression of MMP-2, MCP-1 and CD47 were detected by western blotting, and L-selectin and AOPP were detected by ELISA and spectrophotometer, respectively. Results: In the cartilage tissue morphology, the chondrocytes of OA group showed obvious change, while Cur25 and Cur50 groups maintained the good cartilage cell membrane intact. Compared with control group, the expressions of MMP-2, MCP-1, L-selectin and AOPP in OA group, Cur25 group and Cur50 group were increased (all P<0.05), while CD47 levels were decreased (all P<0.05). Compared with OA group, the expressions of MMP-2, MCP-1, L-selectin and AOPP in Cur25 group and Cur50 group were decreased (all P<0.05), while CD47 levels were increased (all P<0.05), and such changes were more significant in Cur50 group (all P<0.05). Conclusion: The MMP-2, MCP-1, CD47, L-selectin and AOPP are closely associated with the pathology course of OA. Curcumin has protection effect on cartilage, which can relieve joint cartilage degeneration, reduce cartilage inflammation and increase the metabolic activity of chondrocytes.
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Affiliation(s)
- Jun Liu
- Department of Orthopaedics Center, Lanzhou General Hospital of PLA, Lanzhou 730050, China
| | - Xiaole He
- Department of Gerontology, Xijing Hospital, the Fourth Military Medical University, Xi'an 710032, China
| | - Ping Zhen
- Department of Orthopaedics Center, Lanzhou General Hospital of PLA, Lanzhou 730050, China
| | - Shenghu Zhou
- Department of Orthopaedics Center, Lanzhou General Hospital of PLA, Lanzhou 730050, China
| | - Xusheng Li
- Department of Orthopaedics Center, Lanzhou General Hospital of PLA, Lanzhou 730050, China.
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35
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Tian G, Courtney AN, Jena B, Heczey A, Liu D, Marinova E, Guo L, Xu X, Torikai H, Mo Q, Dotti G, Cooper LJ, Metelitsa LS. CD62L+ NKT cells have prolonged persistence and antitumor activity in vivo. J Clin Invest 2016; 126:2341-55. [PMID: 27183388 DOI: 10.1172/jci83476] [Citation(s) in RCA: 112] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Accepted: 03/22/2016] [Indexed: 12/25/2022] Open
Abstract
Vα24-invariant natural killer T cells (NKTs) localize to tumors and have inherent antitumor properties, making them attractive chimeric antigen receptor (CAR) carriers for redirected cancer immunotherapy. However, clinical application of CAR-NKTs has been impeded, as mechanisms responsible for NKT expansion and the in vivo persistence of these cells are unknown. Here, we demonstrated that antigen-induced expansion of primary NKTs in vitro associates with the accumulation of a CD62L+ subset and exhaustion of CD62L- cells. Only CD62L+ NKTs survived and proliferated in response to secondary stimulation. When transferred to immune-deficient NSG mice, CD62L+ NKTs persisted 5 times longer than CD62L- NKTs. Moreover, CD62L+ cells transduced with a CD19-specific CAR achieved sustained tumor regression in a B cell lymphoma model. Proliferating CD62L+ cells downregulated or maintained CD62L expression when activated via T cell receptor alone or in combination with costimulatory receptors. We generated HLAnull K562 cell clones that were engineered to express CD1d and costimulatory ligands. Clone B-8-2 (HLAnullCD1dmedCD86high4-1BBLmedOX40Lhigh) induced the highest rates of NKT expansion and CD62L expression. B-8-2-expanded CAR-NKTs exhibited prolonged in vivo persistence and superior therapeutic activities in models of lymphoma and neuroblastoma. Therefore, we have identified CD62L as a marker of a distinct NKT subset endowed with high proliferative potential and have developed artificial antigen-presenting cells that generate CD62L-enriched NKTs for effective cancer immunotherapy.
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MESH Headings
- Animals
- Antigen-Presenting Cells/immunology
- Cell Line, Tumor
- Cell Proliferation
- Cell Survival
- Cells, Cultured
- Cytokines/biosynthesis
- Cytotoxicity, Immunologic
- Humans
- Immunotherapy, Adoptive
- L-Selectin/metabolism
- Lymphocyte Activation
- Lymphoma, B-Cell/immunology
- Lymphoma, B-Cell/therapy
- Mice
- Mice, Inbred NOD
- Mice, Knockout
- Mice, SCID
- Natural Killer T-Cells/classification
- Natural Killer T-Cells/immunology
- Neuroblastoma/immunology
- Neuroblastoma/therapy
- Receptors, Antigen/immunology
- Recombinant Fusion Proteins/immunology
- Xenograft Model Antitumor Assays
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36
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Zuchtriegel G, Uhl B, Puhr-Westerheide D, Pörnbacher M, Lauber K, Krombach F, Reichel CA. Platelets Guide Leukocytes to Their Sites of Extravasation. PLoS Biol 2016; 14:e1002459. [PMID: 27152726 PMCID: PMC4859536 DOI: 10.1371/journal.pbio.1002459] [Citation(s) in RCA: 132] [Impact Index Per Article: 16.5] [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: 11/23/2015] [Accepted: 04/11/2016] [Indexed: 12/14/2022] Open
Abstract
Effective immune responses require the directed migration of leukocytes from the vasculature to the site of injury or infection. How immune cells “find” their site of extravasation remains largely obscure. Here, we identified a previously unrecognized role of platelets as pathfinders guiding leukocytes to their exit points in the microvasculature: upon onset of inflammation, circulating platelets were found to immediately adhere at distinct sites in venular microvessels enabling these cellular blood components to capture neutrophils and, in turn, inflammatory monocytes via CD40-CD40L-dependent interactions. In this cellular crosstalk, ligation of PSGL-1 by P-selectin leads to ERK1/2 MAPK-dependent conformational changes of leukocyte integrins, which promote the successive extravasation of neutrophils and monocytes to the perivascular tissue. Conversely, blockade of this cellular partnership resulted in misguided, inefficient leukocyte responses. Our experimental data uncover a platelet-directed, spatiotemporally organized, multicellular crosstalk that is essential for effective trafficking of leukocytes to the site of inflammation. This study identifies a previously unanticipated role for platelets as pathfinders, guiding leukocytes to the sites at which they can exit the microvasculature; this process appears to be critical for an effective immune response. White blood cells (leukocytes) are the effector cells of the immune system. The movement (extravasation) of leukocytes from the bloodstream to the surrounding tissue is a prerequisite for proper host defense. Platelets are anucleate cell particles that circulate in the blood and play a fundamental role in hemostasis. Here, we report a previously unrecognized function of platelets as "pathfinders" guiding leukocytes to their site of extravasation. Upon onset of the inflammatory response, platelets were found to immediately adhere to specific sites in the smallest venular microvessels. At these "hot spots", platelets capture intravascularly crawling neutrophils and, in turn, inflammatory monocytes. The cellular crosstalk arising from these interactions leads to conformational changes of distinct adhesion molecules on the surface of leukocytes, subsequently promoting the extravasation of these immune cells to the inflamed tissue. Conversely, blockade of this cellular partnership leads to misguided and inefficient leukocyte responses. Thus, platelet-directed guidance of leukocytes to confined sites of extravasation appears to be a critical step in the recruitment process of immune cells, which might emerge as a promising therapeutic target for the prevention and treatment of inflammatory pathologies.
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Affiliation(s)
- Gabriele Zuchtriegel
- Department of Otorhinolaryngology, Head and Neck Surgery, Klinikum der Universität München, Munich, Germany
- Walter Brendel Centre of Experimental Medicine, Klinikum der Universität München, Munich, Germany
| | - Bernd Uhl
- Walter Brendel Centre of Experimental Medicine, Klinikum der Universität München, Munich, Germany
| | - Daniel Puhr-Westerheide
- Walter Brendel Centre of Experimental Medicine, Klinikum der Universität München, Munich, Germany
| | - Michaela Pörnbacher
- Walter Brendel Centre of Experimental Medicine, Klinikum der Universität München, Munich, Germany
| | - Kirsten Lauber
- Department of Radiation Oncology, Klinikum der Universität München, Munich, Germany
| | - Fritz Krombach
- Walter Brendel Centre of Experimental Medicine, Klinikum der Universität München, Munich, Germany
| | - Christoph Andreas Reichel
- Department of Otorhinolaryngology, Head and Neck Surgery, Klinikum der Universität München, Munich, Germany
- Walter Brendel Centre of Experimental Medicine, Klinikum der Universität München, Munich, Germany
- * E-mail:
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Ritzel RM, Crapser J, Patel AR, Verma R, Grenier JM, Chauhan A, Jellison ER, McCullough LD. Age-Associated Resident Memory CD8 T Cells in the Central Nervous System Are Primed To Potentiate Inflammation after Ischemic Brain Injury. J Immunol 2016; 196:3318-30. [PMID: 26962232 PMCID: PMC4868658 DOI: 10.4049/jimmunol.1502021] [Citation(s) in RCA: 123] [Impact Index Per Article: 15.4] [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: 09/16/2015] [Accepted: 02/05/2016] [Indexed: 01/17/2023]
Abstract
Aging is associated with an increase in basal inflammation in the CNS and an overall decline in cognitive function and poorer recovery following injury. Growing evidence suggests that leukocyte recruitment to the CNS is also increased with normal aging, but, to date, no systematic evaluation of these age-associated leukocytes has been performed. In this work, the effect of aging on CNS leukocyte recruitment was examined. Aging was associated with more CD45(high) leukocytes, primarily composed of conventional CD8(+) T cells. These results were strain independent and seen in both sexes. Intravascular labeling and immunohistology revealed the presence of parenchymal CD8(+) T cells in several regions of the brain, including the choroid plexus and meninges. These cells had effector memory (CD44(+)CD62L(-)) and tissue-resident phenotypes and expressed markers associated with TCR activation. Analysis of TCRvβ repertoire usage suggested that entry into the CNS is most likely stochastic rather than Ag driven. Correlational analyses revealed a positive association between CD8 T cell numbers and decreased proinflammatory function of microglia. However, the effects of cerebral ischemia and ex vivo stimulation of these cells dramatically increased production of TNF, IFN-γ, and MCP-1/CCL2. Taken together, we identified a novel population of resident memory, immunosurveillant CD8 T cells that represent a hallmark of CNS aging and appear to modify microglia homeostasis under normal conditions, but are primed to potentiate inflammation and leukocyte recruitment following ischemic injury.
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Affiliation(s)
- Rodney M Ritzel
- Neuroscience Department, University of Connecticut Health Center, Farmington, CT 06030
| | - Joshua Crapser
- Neuroscience Department, University of Connecticut Health Center, Farmington, CT 06030
| | - Anita R Patel
- Neuroscience Department, University of Connecticut Health Center, Farmington, CT 06030
| | - Rajkumer Verma
- Neuroscience Department, University of Connecticut Health Center, Farmington, CT 06030
| | - Jeremy M Grenier
- Immunology Department, University of Connecticut Health Center, Farmington, CT 06030; and
| | - Anjali Chauhan
- Neuroscience Department, University of Connecticut Health Center, Farmington, CT 06030
| | - Evan R Jellison
- Immunology Department, University of Connecticut Health Center, Farmington, CT 06030; and
| | - Louise D McCullough
- Neuroscience Department, University of Connecticut Health Center, Farmington, CT 06030; Department of Neurology, McGovern Medical School, University of Texas Health Science Center, Houston, TX 77370
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38
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Cui P, Hu Y, Tao Y, Chen C, Zhao J, Guo M, Zhou Y, Xu L. [miR-126 knockdown enhances the activity of murine CD4+ T cells in vivo and promotes their differentiation into Th1 cells]. Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi 2016; 32:347-351. [PMID: 26927555] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
OBJECTIVE To investigate the change of CD4(+) T cell activity in microRNA-126 (miR-126) knockdown (KD) mice and explore its significance. METHODS The expression level of mature miR-126 in CD4(+) CD62L(+) T cells purified by magnetic-activated cell sorting (MACS) was analyzed by real-time PCR using specific probe. Furthermore, the expression levels of CD69, CD62L and CD44 molecules, as well as intracellular proliferating nuclear antigen Ki-67, in CD4(+) T cells in miR-126 KD mice were detected by fluorescence-activated cell sorting (FACS). Moreover, the apoptosis of CD4(+) T cells was analyzed by annexin V/PI staining assay combined with flow cytometry. Finally, the relative expressions of function-related cytokines including interleukine 4 (IL-4), IL-10, IL-12, transforming growth factor (TGF-β), interferon (IFN-γ) and tumor necrosis factor (TNF-α) in CD4(+) T cells were determined by real-time PCR. RESULTS Compared with wild-type (WT) mice, the expression level of mature miR-126 in CD4(+) T cells in miR-126 KD mice was dramatically reduced. Furthermore, the proportion of CD62L(+) in CD4(+) T cells also decreased significantly, while the proportions of CD69(+), CD44(+) and Ki-67(+) cells were remarkably elevated. Meanwhile, the apoptosis proportion of CD4(+) T cells in vivo dropped dramatically in miR-126 KD mice. Finally, the mRNA expressions of IL-4 and IL-10 in CD4(+)T cells were significantly downregulated, but IL-12, TGF-β, TNF-α and IFN-γ mRNAs were obviously up-regulated. CONCLUSION miR-126 knockdown could significantly enhance the functional activity of CD4(+) T cells in vivo and promote cell differentiation into Th1 cells.
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Affiliation(s)
- Panpan Cui
- Department of Immunology, Zunyi Medical College, Zunyi 563000, China
| | - Yan Hu
- Department of Immunology, Zunyi Medical College, Zunyi 563000, China
| | - Yijing Tao
- Department of Immunology, Zunyi Medical College, Zunyi 563000, China
| | - Chao Chen
- Department of Immunology, Zunyi Medical College, Zunyi 563000, China
| | - Juanjuan Zhao
- Department of Immunology, Zunyi Medical College, Zunyi 563000, China
| | - Mengmeng Guo
- Department of Immunology, Zunyi Medical College, Zunyi 563000, China
| | - Ya Zhou
- Department of Medical Physics, Zunyi Medical College, Zunyi 563000, China
| | - Lin Xu
- Department of Immunology, Zunyi Medical College, Zunyi 563000, China. *Corresponding author, E-mail:
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Mohammed RN, Watson HA, Vigar M, Ohme J, Thomson A, Humphreys IR, Ager A. L-selectin Is Essential for Delivery of Activated CD8(+) T Cells to Virus-Infected Organs for Protective Immunity. Cell Rep 2016; 14:760-771. [PMID: 26804910 PMCID: PMC4742564 DOI: 10.1016/j.celrep.2015.12.090] [Citation(s) in RCA: 34] [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: 09/04/2015] [Revised: 12/01/2015] [Accepted: 12/18/2015] [Indexed: 11/18/2022] Open
Abstract
Cytotoxic CD8+ T lymphocytes play a critical role in the host response to infection by viruses. The ability to secrete cytotoxic chemicals and cytokines is considered pivotal for eliminating virus. Of equal importance is how effector CD8+ T cells home to virus-infected tissues. L-selectin has not been considered important for effector T cell homing, because levels are low on activated T cells. We report here that, although L-selectin expression is downregulated following T cell priming in lymph nodes, L-selectin is re-expressed on activated CD8+ T cells entering the bloodstream, and recruitment of activated CD8+ T cells from the bloodstream into virus-infected tissues is L-selectin dependent. Furthermore, L-selectin on effector CD8+ T cells confers protective immunity to two evolutionally distinct viruses, vaccinia and influenza, which infect mucosal and visceral organs, respectively. These results connect homing and a function of virus-specific CD8+ T cells to a single molecule, L-selectin. L-selectin is re-expressed on activated CD8+ T cells exiting lymph nodes L-selectin does not regulate priming, differentiation, or function of cytotoxic T lymphocytes Entry of activated CD8+ T cells into virus-infected tissues is L-selectin dependent The level of cell-surface L-selectin determines the extent of anti-viral immunity
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Affiliation(s)
- Rebar N Mohammed
- Institute of Infection and Immunity, School of Medicine, Cardiff University, Cardiff CF14 4XN, UK; Systems Immunity Research Institute, School of Medicine, Cardiff University, Cardiff CF14 4XN, UK
| | - H Angharad Watson
- Institute of Infection and Immunity, School of Medicine, Cardiff University, Cardiff CF14 4XN, UK; Systems Immunity Research Institute, School of Medicine, Cardiff University, Cardiff CF14 4XN, UK
| | - Miriam Vigar
- Institute of Infection and Immunity, School of Medicine, Cardiff University, Cardiff CF14 4XN, UK; Systems Immunity Research Institute, School of Medicine, Cardiff University, Cardiff CF14 4XN, UK
| | - Julia Ohme
- Institute of Infection and Immunity, School of Medicine, Cardiff University, Cardiff CF14 4XN, UK; Systems Immunity Research Institute, School of Medicine, Cardiff University, Cardiff CF14 4XN, UK
| | - Amanda Thomson
- Institute of Infection and Immunity, School of Medicine, Cardiff University, Cardiff CF14 4XN, UK; Systems Immunity Research Institute, School of Medicine, Cardiff University, Cardiff CF14 4XN, UK
| | - Ian R Humphreys
- Institute of Infection and Immunity, School of Medicine, Cardiff University, Cardiff CF14 4XN, UK; Systems Immunity Research Institute, School of Medicine, Cardiff University, Cardiff CF14 4XN, UK
| | - Ann Ager
- Institute of Infection and Immunity, School of Medicine, Cardiff University, Cardiff CF14 4XN, UK; Systems Immunity Research Institute, School of Medicine, Cardiff University, Cardiff CF14 4XN, UK.
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40
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Morabito KM, Erez N, Graham BS, Ruckwardt TJ. Phenotype and Hierarchy of Two Transgenic T Cell Lines Targeting the Respiratory Syncytial Virus KdM282-90 Epitope Is Transfer Dose-Dependent. PLoS One 2016; 11:e0146781. [PMID: 26752171 PMCID: PMC4708989 DOI: 10.1371/journal.pone.0146781] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Accepted: 12/22/2015] [Indexed: 11/19/2022] Open
Abstract
In this study, we compared two lines of transgenic CD8+ T cells specific for the same KdM282-90 epitope of respiratory syncytial virus in the CB6F1 hybrid mouse model. Here we found that these two transgenic lines had similar in vivo abilities to control viral load after respiratory syncytial virus infection using adoptive transfer. Transfer of the TRBV13-2 line resulted in higher levels of IL-6 and MIP1-α in the lung than TRBV13-1 transfer. Interestingly, when large numbers of cells were co-transferred, the lines formed a hierarchy, with TRBV13-2 being immunodominant over TRBV13-1 in the mediastinal lymph node despite no identifiable difference in proliferation or apoptosis between the lines. This hierarchy was not established when lower cell numbers were transferred. The phenotype and frequency of proliferating cells were also cell transfer dose-dependent with higher percentages of CD127loCD62LloKLRG1lo and proliferating cells present when lower numbers of cells were transferred. These results illustrate the importance of cell number in adoptive transfer experiments and its influence on the phenotype and hierarchy of the subsequent T cell response.
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Affiliation(s)
- Kaitlyn M. Morabito
- Vaccine Research Center, National Institute of Allergy and Infectious Disease, National Institutes of Health, Bethesda, Maryland, United States of America
- Department of Microbiology and Immunology, Georgetown University Medical Center, Washington, DC, United States of America
| | - Noam Erez
- Vaccine Research Center, National Institute of Allergy and Infectious Disease, National Institutes of Health, Bethesda, Maryland, United States of America
- Department of Infectious Diseases, Israel Institute for Biological Research, Ness-Ziona, Israel
| | - Barney S. Graham
- Vaccine Research Center, National Institute of Allergy and Infectious Disease, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Tracy J. Ruckwardt
- Vaccine Research Center, National Institute of Allergy and Infectious Disease, National Institutes of Health, Bethesda, Maryland, United States of America
- * E-mail:
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41
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Liu X, Wang J, Zhang H, Zhan M, Chen H, Fang Z, Xu C, Chen H, He S. Induction of Mast Cell Accumulation by Tryptase via a Protease Activated Receptor-2 and ICAM-1 Dependent Mechanism. Mediators Inflamm 2016; 2016:6431574. [PMID: 27378825 PMCID: PMC4917695 DOI: 10.1155/2016/6431574] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2016] [Accepted: 05/10/2016] [Indexed: 02/05/2023] Open
Abstract
Mast cells are primary effector cells of allergy, and recruitment of mast cells in involved tissue is one of the key events in allergic inflammation. Tryptase is the most abundant secretory product of mast cells, but little is known of its influence on mast cell accumulation. Using mouse peritoneal model, cell migration assay, and flow cytometry analysis, we investigated role of tryptase in recruiting mast cells. The results showed that tryptase induced up to 6.7-fold increase in mast cell numbers in mouse peritoneum following injection. Inhibitors of tryptase, an antagonist of PAR-2 FSLLRY-NH2, and pretreatment of mice with anti-ICAM-1, anti-CD11a, and anti-CD18 antibodies dramatically diminished tryptase induced mast cell accumulation. On the other hand, PAR-2 agonist peptides SLIGRL-NH2 and tc-LIGRLO-NH2 provoked mast cell accumulation following injection. These implicate that tryptase induced mast cell accumulation is dependent on its enzymatic activity, activation of PAR-2, and interaction between ICAM-1 and LFA-1. Moreover, induction of trans-endothelium migration of mast cells in vitro indicates that tryptase acts as a chemoattractant. In conclusion, provocation of mast cell accumulation by mast cell tryptase suggests a novel self-amplification mechanism of mast cell accumulation. Mast cell stabilizers as well as PAR-2 antagonist agents may be useful for treatment of allergic reactions.
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Affiliation(s)
- Xin Liu
- Allergy and Clinical Immunology Research Centre, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning 121001, China
| | - Junling Wang
- Allergy and Clinical Immunology Research Centre, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning 121001, China
| | - Huiyun Zhang
- Allergy and Clinical Immunology Research Centre, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning 121001, China
| | - Mengmeng Zhan
- Allergy and Clinical Immunology Research Centre, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning 121001, China
| | - Hanqiu Chen
- Allergy and Inflammation Research Institute, The Key Immunopathology Laboratory of Guangdong Province, Shantou University Medical College, Shantou 515031, China
| | - Zeman Fang
- Allergy and Inflammation Research Institute, The Key Immunopathology Laboratory of Guangdong Province, Shantou University Medical College, Shantou 515031, China
| | - Chiyan Xu
- Allergy and Inflammation Research Institute, The Key Immunopathology Laboratory of Guangdong Province, Shantou University Medical College, Shantou 515031, China
| | - Huifang Chen
- Allergy and Inflammation Research Institute, The Key Immunopathology Laboratory of Guangdong Province, Shantou University Medical College, Shantou 515031, China
| | - Shaoheng He
- Allergy and Clinical Immunology Research Centre, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning 121001, China
- *Shaoheng He:
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42
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Shirshev SV, Nekrasova IV, Gorbunova OL, Orlova EG, Maslennikova IL. The effect of kisspeptin on the functional characteristics of isolated NK cells. Dokl Biol Sci 2015; 464:267-269. [PMID: 26530074 DOI: 10.1134/s0012496615050129] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Indexed: 06/05/2023]
Abstract
The effect of kisspeptin at concentrations typical of pregnancy on the functional activity of isolated cytokine-primed NK cells has been investigated. The hormone has been shown to promote an increase in the proportion of CD56(bright) NK cells, as well as an increase in the L-selectin expression on the cell surface. Assessment of cytokine levels has shown that kisspeptin suppresses the production of IL-4, IL-10, and IFN-γ while stimulating the production of TGF-β by isolated NK cells. The overall effect of the hormone investigated consisted in the formation of a phenotype and a cytokine spectrum characteristic of the regulatory NK3 subpopulation of NK cells in pregnancy.
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Affiliation(s)
- S V Shirshev
- Institute of Ecology and Genetics of Microorganisms, Ural Branch, Russian Academy of Sciences, ul. Goleva 13, Perm, 614081, Russia.
| | - I V Nekrasova
- Institute of Ecology and Genetics of Microorganisms, Ural Branch, Russian Academy of Sciences, ul. Goleva 13, Perm, 614081, Russia
| | - O L Gorbunova
- Institute of Ecology and Genetics of Microorganisms, Ural Branch, Russian Academy of Sciences, ul. Goleva 13, Perm, 614081, Russia
| | - E G Orlova
- Institute of Ecology and Genetics of Microorganisms, Ural Branch, Russian Academy of Sciences, ul. Goleva 13, Perm, 614081, Russia
| | - I L Maslennikova
- Institute of Ecology and Genetics of Microorganisms, Ural Branch, Russian Academy of Sciences, ul. Goleva 13, Perm, 614081, Russia
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43
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Conejeros I, Gibson AJ, Werling D, Muñoz-Caro T, Hermosilla C, Taubert A, Burgos RA. Effect of the synthetic Toll-like receptor ligands LPS, Pam3CSK4, HKLM and FSL-1 in the function of bovine polymorphonuclear neutrophils. Dev Comp Immunol 2015; 52:215-225. [PMID: 26026246 DOI: 10.1016/j.dci.2015.05.012] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2014] [Revised: 05/23/2015] [Accepted: 05/23/2015] [Indexed: 06/04/2023]
Abstract
Toll-like receptors (TLR) are a family of pattern recognition receptors that sense microbial associated molecular patterns (MAMP) such as microbial membrane components and nucleic acids of bacterial origin. Polymorphonuclear neutrophils (PMN) are the first cell of the innate immune system to arrive at the site of infection or injury and elicit oxidative and non-oxidative microbicidal mechanisms. Observations in human and mouse suggest that TLR ligands can induce direct responses in PMN. So far, there is no information of the effect of synthetic TLR ligands on the response of bovine PMN. The objective of this study was to evaluate the functional response of bovine PMN incubated with four synthetic TLR ligands: ultrapure LPS (TLR4), Pam(3)CSK(4) (TLR2/1), HKLM (TLR2) and FSL-1 (TLR2/6). The results show that all the ligands increment cells size as identified by changes in the FSC-SSC as part of the flow cytometric analysis. Interestingly, only Pam(3)CSK(4) consistently induced a calcium influx, increased ROS production and secretion of gelatinase granules, whereas no response was seen using other ligands. Furthermore, exposure of bovine PMN to ultrapure LPS, Pam(3)CSK(4), HKLM or FSL-1 for 24 hours did not impact on apoptosis of these cells. Our data provide evidence for a selective response of bovine PMNs to TLR ligands.
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Affiliation(s)
- Iván Conejeros
- Laboratory of Inflammation Pharmacology, Institute of Pharmacology and Morphophysiology, Faculty of Veterinary Science, Universidad Austral de Chile, Valdivia, Chile.
| | - Amanda J Gibson
- Department of Pathology and Pathogen Biology, Royal Veterinary College, Hawkshead Lane, Hatfield AL9 7TA, UK
| | - Dirk Werling
- Department of Pathology and Pathogen Biology, Royal Veterinary College, Hawkshead Lane, Hatfield AL9 7TA, UK
| | - Tamara Muñoz-Caro
- Institute of Parasitology, Justus Liebig University Giessen, Schubertstr. 81, BFS, 35392 Giessen, Germany
| | - Carlos Hermosilla
- Institute of Parasitology, Justus Liebig University Giessen, Schubertstr. 81, BFS, 35392 Giessen, Germany
| | - Anja Taubert
- Institute of Parasitology, Justus Liebig University Giessen, Schubertstr. 81, BFS, 35392 Giessen, Germany
| | - Rafael A Burgos
- Laboratory of Inflammation Pharmacology, Institute of Pharmacology and Morphophysiology, Faculty of Veterinary Science, Universidad Austral de Chile, Valdivia, Chile
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Prohl A, Wolf K, Weber C, Müller KE, Menge C, Sachse K, Rödel J, Reinhold P, Berndt A. Kinetics of Local and Systemic Leucocyte and Cytokine Reaction of Calves to Intrabronchial Infection with Chlamydia psittaci. PLoS One 2015; 10:e0135161. [PMID: 26252769 PMCID: PMC4529195 DOI: 10.1371/journal.pone.0135161] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Accepted: 07/18/2015] [Indexed: 11/19/2022] Open
Abstract
Infection of cattle with chlamydiae is ubiquitous and, even in the absence of clinical sequeleae, has a quantifiable negative impact on livestock productivity. Despite recent progress, our knowledge about immune response mechanisms capable of counteracting the infection and preventing its detrimental effects is still limited. A well-established model of bovine acute respiratory Chlamydia (C.) psittaci infection was used here to characterize the kinetics of the local and systemic immune reactions in calves. In the course of two weeks following inoculation, leukocyte surface marker expression was monitored by flow cytometry in blood and bronchoalveolar lavage fluid (BALF). Immune-related protein and receptor transcription were determined by quantitative real-time reverse transcription PCR in blood, BALF and lung tissue. An early increase of IL2RA, IL10 and HSPA1A mRNA expressions was followed by a rise of lymphocytes, monocytes, and granulocytes exhibiting activated phenotypes in blood. Monocytes showed elevated expression rates of CD11b, CD14 and MHC class II. The rates of CD62L expression on CD8hi T cells in blood and on CD4+ T cells in BALF were also augmented and peaked between 2 and 4 dpi. Notably, CD25 antigen expression was significantly elevated, not only on CD8dim/CD62L+ and CD8-/CD62L+ cells in blood, but also on granulocytes in blood and BALF between 2–3 dpi. From 4 dpi onwards, changes declined and the calves recovered from the infection until 10 dpi. The findings highlight the effectiveness of rapid local and systemic immune reaction and indicate activated T cells, monocytes and granulocytes being essential for rapid eradication of the C. psittaci infection.
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Affiliation(s)
- Annette Prohl
- Institute of Molecular Pathogenesis at ‘Friedrich-Loeffler-Institut’ (Federal Research Institute for Animal Health), Jena, Germany
| | - Katharina Wolf
- Institute of Medical Microbiology, Friedrich Schiller University of Jena, Jena, Germany
| | - Corinna Weber
- Ruminant and Swine Clinic at Freie Universität Berlin, Berlin, Germany
| | - Kerstin E. Müller
- Ruminant and Swine Clinic at Freie Universität Berlin, Berlin, Germany
| | - Christian Menge
- Institute of Molecular Pathogenesis at ‘Friedrich-Loeffler-Institut’ (Federal Research Institute for Animal Health), Jena, Germany
| | - Konrad Sachse
- Institute of Molecular Pathogenesis at ‘Friedrich-Loeffler-Institut’ (Federal Research Institute for Animal Health), Jena, Germany
| | - Jürgen Rödel
- Institute of Medical Microbiology, Friedrich Schiller University of Jena, Jena, Germany
| | - Petra Reinhold
- Institute of Molecular Pathogenesis at ‘Friedrich-Loeffler-Institut’ (Federal Research Institute for Animal Health), Jena, Germany
- * E-mail:
| | - Angela Berndt
- Institute of Molecular Pathogenesis at ‘Friedrich-Loeffler-Institut’ (Federal Research Institute for Animal Health), Jena, Germany
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Chang EK, Eckert MA, Ali MM, Riazifar H, Pone EJ, Liu L, Zhao W. Facile supermolecular aptamer inhibitors of L-selectin. PLoS One 2015; 10:e0123034. [PMID: 25826688 PMCID: PMC4380364 DOI: 10.1371/journal.pone.0123034] [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] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2014] [Accepted: 02/25/2015] [Indexed: 12/24/2022] Open
Abstract
Multivalent interactions occur frequently in nature, where they mediate high-affinity interactions between cells, proteins, or molecules. Here, we report on a method to generate multivalent aptamers (Multi-Aptamers) that target L-selectin function using rolling circle amplification (RCA). We find that the L-selectin Multi-Aptamers have increased affinity compared to the monovalent aptamer, are specific to L-selectin, and are capable of inhibiting interactions with endogenous ligands. In addition, the Multi-Aptamers efficiently inhibit L-selectin mediated dynamic adhesion in vitro and homing to secondary lymphoid tissues in vivo. Importantly, our method of generating multivalent materials using RCA avoids many of the challenges associated with current multivalent materials in that the Multi-Aptamers are high affinity, easily produced and modified, and biocompatible. We anticipate that the Multi-Aptamers can serve as a platform technology to modulate diverse cellular processes.
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Affiliation(s)
- Elizabeth K. Chang
- Sue and Bill Gross Stem Cell Research Center, Chao Family Comprehensive Cancer Center, Edwards Lifesciences Center for Advanced Cardiovascular Technology, Edwards Lifesciences Center for Advanced Cardiovascular Technology, Department of Biomedical Engineering, and Department of Pharmaceutical Sciences, University of California Irvine, Irvine, California, 92697, United States of America
| | - Mark A. Eckert
- Sue and Bill Gross Stem Cell Research Center, Chao Family Comprehensive Cancer Center, Edwards Lifesciences Center for Advanced Cardiovascular Technology, Edwards Lifesciences Center for Advanced Cardiovascular Technology, Department of Biomedical Engineering, and Department of Pharmaceutical Sciences, University of California Irvine, Irvine, California, 92697, United States of America
| | - M. Monsur Ali
- Sue and Bill Gross Stem Cell Research Center, Chao Family Comprehensive Cancer Center, Edwards Lifesciences Center for Advanced Cardiovascular Technology, Edwards Lifesciences Center for Advanced Cardiovascular Technology, Department of Biomedical Engineering, and Department of Pharmaceutical Sciences, University of California Irvine, Irvine, California, 92697, United States of America
| | - Hamidreza Riazifar
- Sue and Bill Gross Stem Cell Research Center, Chao Family Comprehensive Cancer Center, Edwards Lifesciences Center for Advanced Cardiovascular Technology, Edwards Lifesciences Center for Advanced Cardiovascular Technology, Department of Biomedical Engineering, and Department of Pharmaceutical Sciences, University of California Irvine, Irvine, California, 92697, United States of America
| | - Egest J. Pone
- Sue and Bill Gross Stem Cell Research Center, Chao Family Comprehensive Cancer Center, Edwards Lifesciences Center for Advanced Cardiovascular Technology, Edwards Lifesciences Center for Advanced Cardiovascular Technology, Department of Biomedical Engineering, and Department of Pharmaceutical Sciences, University of California Irvine, Irvine, California, 92697, United States of America
| | - Linan Liu
- Sue and Bill Gross Stem Cell Research Center, Chao Family Comprehensive Cancer Center, Edwards Lifesciences Center for Advanced Cardiovascular Technology, Edwards Lifesciences Center for Advanced Cardiovascular Technology, Department of Biomedical Engineering, and Department of Pharmaceutical Sciences, University of California Irvine, Irvine, California, 92697, United States of America
| | - Weian Zhao
- Sue and Bill Gross Stem Cell Research Center, Chao Family Comprehensive Cancer Center, Edwards Lifesciences Center for Advanced Cardiovascular Technology, Edwards Lifesciences Center for Advanced Cardiovascular Technology, Department of Biomedical Engineering, and Department of Pharmaceutical Sciences, University of California Irvine, Irvine, California, 92697, United States of America
- * E-mail:
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Alsina L, Basteiro MG, de Paz HD, Iñigo M, de Sevilla MF, Triviño M, Juan M, Muñoz-Almagro C. Recurrent invasive pneumococcal disease in children: underlying clinical conditions, and immunological and microbiological characteristics. PLoS One 2015; 10:e0118848. [PMID: 25738983 PMCID: PMC4349703 DOI: 10.1371/journal.pone.0118848] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2014] [Accepted: 01/06/2015] [Indexed: 11/19/2022] Open
Abstract
Purpose Clinical, immunological and microbiological characteristics of recurrent invasive pneumococcal disease (IPD) in children were evaluated, differentiating relapse from reinfection, in order to identify specific risk factors for both conditions. Methods All patients <18 years-old with recurrent IPD admitted to a tertiary-care pediatric center from January 2004 to December 2011 were evaluated. An episode of IPD was defined as the presence of clinical findings of infection together with isolation and/or pneumococcal DNA detection by Real-Time PCR in any sterile body fluid. Recurrent IPD was defined as 2 or more episodes in the same individual at least 1 month apart. Among recurrent IPD, we differentiated relapse (same pneumococcal isolate) from reinfection. Results 593 patients were diagnosed with IPD and 10 patients died. Among survivors, 23 episodes of recurrent IPD were identified in 10 patients (1.7%). Meningitis was the most frequent form of recurrent IPD (10 episodes/4 children) followed by recurrent empyema (8 episodes/4 children). Three patients with recurrent empyema caused by the same pneumococcal clone ST306 were considered relapses and showed high bacterial load in their first episode. In contrast, all other episodes of recurrent IPD were considered reinfections. Overall, the rate of relapse of IPD was 0.5% and the rate of reinfection 1.2%. Five out of 7 patients with reinfection had an underlying risk factor: cerebrospinal fluid leak (n = 3), chemotherapy treatment (n = 1) and a homozygous mutation in MyD88 gene (n = 1). No predisposing risk factors were found in the remainder. Conclusions recurrent IPD in children is a rare condition associated with an identifiable risk factor in case of reinfection in almost 80% of cases. In contrast, recurrent IPD with pleuropneumonia is usually a relapse of infection.
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Affiliation(s)
- Laia Alsina
- Allergy and Clinical Immunology Department, Hospital Sant Joan de Déu, University of Barcelona, Barcelona, Spain
- Functional Unit of Immunology, Hospital Sant Joan de Déu and Hospital Clinic. Barcelona, Spain
| | - Maria G. Basteiro
- Department of Pediatrics, Hospital Sant Joan de Déu, University of Barcelona, Barcelona, Spain
| | - Hector D. de Paz
- Department of Molecular Microbiology, Hospital Sant Joan de Déu, University of Barcelona, Barcelona, Spain
| | - Melania Iñigo
- Department of Molecular Microbiology, Hospital Sant Joan de Déu, University of Barcelona, Barcelona, Spain
| | - Mariona F. de Sevilla
- Department of Pediatrics, Hospital Sant Joan de Déu, University of Barcelona, Barcelona, Spain
| | - Miriam Triviño
- Department of Pediatrics, Hospital Sant Joan de Déu, University of Barcelona, Barcelona, Spain
| | - Manel Juan
- Immunology Service, Hospital Clinic and Instituto de Investigaciones Biomédicas August Pi y Sunyer (IDIBAPS), Barcelona, Spain
- Functional Unit of Immunology, Hospital Sant Joan de Déu and Hospital Clinic. Barcelona, Spain
| | - Carmen Muñoz-Almagro
- Department of Molecular Microbiology, Hospital Sant Joan de Déu, University of Barcelona, Barcelona, Spain
- * E-mail:
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Chen Y, Zheng L, Liu J, Zhou Z, Lv X, Zhang J, Zhang S, Sun L, Chen F. [Activation of Wnt/β-catenin pathway in NK cells by glycogen synthase kinase-3β inhibitor TWS119 promotes the expression of CD62L]. Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi 2015; 31:44-48. [PMID: 25575058] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
OBJECTIVE To investigate the effect of Wnt/β-catenin pathway activation by glycogen synthase kinase-3β inhibitor 4,6-disubstituted pyrrolopyrimidine (TWS119) on proliferation and phenotypic characteristics of human nature killer (NK) cells. METHODS The peripheral blood mononuclear cells (PBMCs) were obtained from healthy volunteers and added to the complete medium containing recombinant human interleukin-2 (rhIL-2) and human AB serum to isolate NK cells from PBMCs. After co-cultured with 0-8.0 μmol/L TWS119 for 72 hours, growth curve and Wnt/β-catenin activation of NK cells in each group were determined by CCK-8 and Western blotting. The CD107a and CD62L (L-selectin) expressions in the NK cells were detected using flow cytometry. RESULTS NK cells were amplified to (61.76 ± 3.74)% after human PBMCs were cultured for 10 days. The 0-2.0 μmol/L TWS119 could promote the growth of NK cells in a dose-dependent manner, and the proliferation rate gradually dropped when TWS119 was more than 2.0 μmol/L. 0-8.0 μmol/L TWS119 could activate Wnt/β-catenin pathway and up-regulate the expression of CD62L in a dose-dependent manner, but it decreased the expression of CD107a. CONCLUSION Human NK cells isolated from peripheral blood treated with TWS119 gave rise to early mature CD62L⁺ NK cells.
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Affiliation(s)
- Yongqiang Chen
- Department of Central Laboratory, No. 97th Hospital of PLA, Xuzhou 221004, China
| | - Lu Zheng
- Department of Central Laboratory, No. 97th Hospital of PLA, Xuzhou 221004, China
| | - Junquan Liu
- Department of Central Laboratory, No. 97th Hospital of PLA, Xuzhou 221004, China
| | - Zhonghai Zhou
- Department of Central Laboratory, No. 97th Hospital of PLA, Xuzhou 221004, China
| | - Xiaoting Lv
- Department of Central Laboratory, No. 97th Hospital of PLA, Xuzhou 221004, China
| | - Juan Zhang
- Department of Central Laboratory, No. 97th Hospital of PLA, Xuzhou 221004, China
| | - Song Zhang
- Department of Central Laboratory, No. 97th Hospital of PLA, Xuzhou 221004, China
| | - Leiqing Sun
- Department of Central Laboratory, No. 97th Hospital of PLA, Xuzhou 221004, China
| | - Fuxing Chen
- Department of Central Laboratory, No. 97th Hospital of PLA, Xuzhou 221004, China
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Marzano AV, Ceccherini I, Gattorno M, Fanoni D, Caroli F, Rusmini M, Grossi A, De Simone C, Borghi OM, Meroni PL, Crosti C, Cugno M. Association of pyoderma gangrenosum, acne, and suppurative hidradenitis (PASH) shares genetic and cytokine profiles with other autoinflammatory diseases. Medicine (Baltimore) 2014; 93:e187. [PMID: 25501066 PMCID: PMC4602806 DOI: 10.1097/md.0000000000000187] [Citation(s) in RCA: 93] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
The association of pyoderma gangrenosum, acne, and suppurative hidradenitis (PASH) has recently been described and suggested to be a new entity within the spectrum of autoinflammatory syndromes, which are characterized by recurrent episodes of sterile inflammation, without circulating autoantibodies and autoreactive T-cells. We conducted an observational study on 5 patients with PASH syndrome, analyzing their clinical features, genetic profile of 10 genes already known to be involved in autoinflammatory diseases (AIDs), and cytokine expression pattern both in lesional skin and serum. In tissue skin samples, the expressions of interleukin (IL)-1β and its receptors I and II were significantly higher in PASH (P = 0.028, 0.047, and 0.050, respectively) than in controls. In PASH patients, chemokines such as IL-8 (P = 0.004), C-X-C motif ligand (CXCL) 1/2/3 (P = 0.028), CXCL 16 (P = 0.008), and regulated on activation, normal T cell expressed and secreted (RANTES) (P = 0.005) were overexpressed. Fas/Fas ligand and cluster of differentiation (CD)40/CD40 ligand systems were also overexpressed (P = 0.016 for Fas, P = 0.006 for Fas ligand, P = 0.005 for CD40, and P = 0.004 for CD40 ligand), contributing to tissue damage and inflammation. In peripheral blood, serum levels of the main proinflammatory cytokines, that is, IL-1β, tumor necrosis factor-α, and IL-17, were within the normal range, suggesting that in PASH syndrome, the inflammatory process is mainly localized into the skin. Four out of our 5 PASH patients presented genetic alterations typical of well-known AIDs, including inflammatory bowel diseases, and the only patient lacking genetic changes had clinically evident Crohn disease. In conclusion, overexpression of cytokines/chemokines and molecules amplifying the inflammatory network, along with the genetic changes, supports the view that PASH syndrome is autoinflammatory in origin.
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Affiliation(s)
- Angelo V Marzano
- From the Dipartimento di Fisiopatologia Medico-Chirurgica e dei Trapianti (AVM, DF, CC), Università degli Studi di Milano, Unità Operativa di Dermatologia, IRCCS Fondazione Ca' Granda, Ospedale Maggiore Policlinico, Milano; UOC Genetica Medica (IC, FC, MR, AG), Istituto Giannina Gaslini; Pediatria II (MG), Istituto Giannina Gaslini, Genova; Dipartimento di Dermatologia (CDS), Università Cattolica del Sacro Cuore, Roma; Dipartimento di Scienze Cliniche e di Comunità (OMB, PLM), Università degli Studi di Milano, Cattedra di Reumatologia, Istituto G. Pini, Milano; IRCCS Istituto Auxologico Italiano, Milano, Italy (OMB); and Dipartimento di Fisiopatologia Medico-Chirurgica e dei Trapianti (MC), Università degli Studi di Milano, Unità Operativa di Medicina Interna, IRCCS Fondazione Ca' Granda, Ospedale Maggiore Policlinico, Milano, Italy
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Nandakumar S, Kannanganat S, Posey JE, Amara RR, Sable SB. Attrition of T-cell functions and simultaneous upregulation of inhibitory markers correspond with the waning of BCG-induced protection against tuberculosis in mice. PLoS One 2014; 9:e113951. [PMID: 25419982 PMCID: PMC4242676 DOI: 10.1371/journal.pone.0113951] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Accepted: 11/01/2014] [Indexed: 12/17/2022] Open
Abstract
Mycobacterium bovis bacille Calmette-Guérin (BCG) is the most widely used live attenuated vaccine. However, the correlates of protection and waning of its immunity against tuberculosis is poorly understood. In this study, we correlated the longitudinal changes in the magnitude and functional quality of CD4+ and CD8+ T-cell response over a period of two years after mucosal or parenteral BCG vaccination with the strength of protection against Mycobacterium tuberculosis in mice. The BCG vaccination-induced CD4+ and CD8+ T cells exhibited comparable response kinetics but distinct functional attributes in-terms of IFN-γ, IL-2 and TNF-α co-production and CD62L memory marker expression. Despite a near life-long BCG persistence and the induction of enduring CD4+ T-cell responses characterized by IFN-γ and/or TNF-α production with comparable protection, the protective efficacy waned regardless of the route of vaccination. The progressive decline in the multifactorial functional abilities of CD4+ and CD8+ T cells in-terms of type-1 cytokine production, proliferation and cytolytic potential corresponded with the waning of protection against M. tuberculosis infection. In addition, simultaneous increase in the dysfunctional and terminally-differentiated T cells expressing CTLA-4, KLRG-1 and IL-10 during the contraction phase of BCG-induced response coincided with the loss of protection. Our results question the empirical development of BCG-booster vaccines and emphasize the pursuit of strategies that maintain superior T-cell functional capacity. Furthermore, our results underscore the importance of understanding the comprehensive functional dynamics of antigen-specific T-cell responses in addition to cytokine polyfunctionality in BCG-vaccinated hosts while optimizing novel vaccination strategies against tuberculosis.
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Affiliation(s)
- Subhadra Nandakumar
- Division of Tuberculosis Elimination, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America
| | - Sunil Kannanganat
- Department of Microbiology and Immunology, Yerkes National Primate Research Center, Emory University, Atlanta, Georgia, United States of America
| | - James E. Posey
- Division of Tuberculosis Elimination, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America
| | - Rama Rao Amara
- Department of Microbiology and Immunology, Yerkes National Primate Research Center, Emory University, Atlanta, Georgia, United States of America
| | - Suraj B. Sable
- Division of Tuberculosis Elimination, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America
- * E-mail:
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50
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Panagos CG, Thomson DS, Moss C, Hughes AD, Kelly MS, Liu Y, Chai W, Venkatasamy R, Spina D, Page CP, Hogwood J, Woods RJ, Mulloy B, Bavington CD, Uhrín D. Fucosylated chondroitin sulfates from the body wall of the sea cucumber Holothuria forskali: conformation, selectin binding, and biological activity. J Biol Chem 2014; 289:28284-98. [PMID: 25147180 PMCID: PMC4192483 DOI: 10.1074/jbc.m114.572297] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Revised: 08/09/2014] [Indexed: 11/06/2022] Open
Abstract
Fucosylated chondroitin sulfate (fCS) extracted from the sea cucumber Holothuria forskali is composed of the following repeating trisaccharide unit: → 3)GalNAcβ4,6S(1 → 4) [FucαX(1 → 3)]GlcAβ(1 →, where X stands for different sulfation patterns of fucose (X = 3,4S (46%), 2,4S (39%), and 4S (15%)). As revealed by NMR and molecular dynamics simulations, the fCS repeating unit adopts a conformation similar to that of the Le(x) blood group determinant, bringing several sulfate groups into close proximity and creating large negative patches distributed along the helical skeleton of the CS backbone. This may explain the high affinity of fCS oligosaccharides for L- and P-selectins as determined by microarray binding of fCS oligosaccharides prepared by Cu(2+)-catalyzed Fenton-type and photochemical depolymerization. No binding to E-selectin was observed. fCS poly- and oligosaccharides display low cytotoxicity in vitro, inhibit human neutrophil elastase activity, and inhibit the migration of neutrophils through an endothelial cell layer in vitro. Although the polysaccharide showed some anti-coagulant activity, small oligosaccharide fCS fragments had much reduced anticoagulant properties, with activity mainly via heparin cofactor II. The fCS polysaccharides showed prekallikrein activation comparable with dextran sulfate, whereas the fCS oligosaccharides caused almost no effect. The H. forskali fCS oligosaccharides were also tested in a mouse peritoneal inflammation model, where they caused a reduction in neutrophil infiltration. Overall, the data presented support the action of fCS as an inhibitor of selectin interactions, which play vital roles in inflammation and metastasis progression. Future studies of fCS-selectin interaction using fCS fragments or their mimetics may open new avenues for therapeutic intervention.
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Affiliation(s)
- Charalampos G Panagos
- From the EaStCHEM School of Chemistry, Joseph Black Building, The King's Buildings, University of Edinburgh, Edinburgh EH9 3JJ, United Kingdom
| | - Derek S Thomson
- GlycoMar Ltd., European Centre for Marine Biotechnology, Dunstaffnage Marine Laboratory, Oban, Argyll PA37 1QA, United Kingdom
| | - Claire Moss
- GlycoMar Ltd., European Centre for Marine Biotechnology, Dunstaffnage Marine Laboratory, Oban, Argyll PA37 1QA, United Kingdom
| | - Adam D Hughes
- the Scottish Association for Marine Science, Scottish Marine Institute, Oban, Argyll PA37 1QA, United Kingdom
| | - Maeve S Kelly
- the Scottish Association for Marine Science, Scottish Marine Institute, Oban, Argyll PA37 1QA, United Kingdom
| | - Yan Liu
- the Glycosciences Laboratory, Hammersmith Campus, Imperial College London, London W12 0NN, United Kingdom
| | - Wengang Chai
- the Glycosciences Laboratory, Hammersmith Campus, Imperial College London, London W12 0NN, United Kingdom
| | - Radhakrishnan Venkatasamy
- the Sackler Institute of Pulmonary Pharmacology, Institute of Pharmaceutical Science, King's College London, London SE1 9NH, United Kingdom
| | - Domenico Spina
- the Sackler Institute of Pulmonary Pharmacology, Institute of Pharmaceutical Science, King's College London, London SE1 9NH, United Kingdom
| | - Clive P Page
- the Sackler Institute of Pulmonary Pharmacology, Institute of Pharmaceutical Science, King's College London, London SE1 9NH, United Kingdom
| | - John Hogwood
- the National Institute of Biological Standards and Controls, South Mimms, Potters Bar, Hertfordshire EN6 3QG, United Kingdom
| | - Robert J Woods
- the Complex Carbohydrate Research Center, the University of Georgia, Athens, Georgia 30602, and the School of Chemistry, National University of Ireland Galway, University Road, Galway, Ireland
| | - Barbara Mulloy
- the Glycosciences Laboratory, Hammersmith Campus, Imperial College London, London W12 0NN, United Kingdom, the Sackler Institute of Pulmonary Pharmacology, Institute of Pharmaceutical Science, King's College London, London SE1 9NH, United Kingdom
| | - Charlie D Bavington
- GlycoMar Ltd., European Centre for Marine Biotechnology, Dunstaffnage Marine Laboratory, Oban, Argyll PA37 1QA, United Kingdom
| | - Dušan Uhrín
- From the EaStCHEM School of Chemistry, Joseph Black Building, The King's Buildings, University of Edinburgh, Edinburgh EH9 3JJ, United Kingdom,
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