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Ji C, Nagaoka K, Zou J, Casulli S, Lu S, Cao KY, Zhang H, Iwagami Y, Carlson RI, Brooks K, Lawrence J, Mueller W, Wands JR, Huang CK. Chronic ethanol-mediated hepatocyte apoptosis links to decreased TET1 and 5-hydroxymethylcytosine formation. FASEB J 2018; 33:1824-1835. [PMID: 30188753 DOI: 10.1096/fj.201800736r] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The 5-hydroxymethylcytosine (5hmc) is a newly identified epigenetic modification thought to be regulated by the TET family of proteins. Little information is available about how ethanol consumption may modulate 5hmC formation and alcoholic liver disease (ALD) progression. A rat ALD model was used to study 5hmC in relationship to hepatocyte apoptosis. Human ALD liver samples were also used to validate these findings. It was found that chronic ethanol feeding significantly reduced 5hmC formation in a rat ALD model. There were no significant changes in TET2 and TET3 between the control- and ethanol-fed animals. In contrast, methylcytosine dioxygenase TET1 (TET1) expression was substantially reduced in the ethanol-fed rats and was accompanied by increased hepatocyte apoptosis. Similarly, knockdown of TET1 in human hepatocyte-like cells also significantly promoted apoptosis. Down-regulation of TET1 resulted in elevated expression of the DNA damage marker, suggesting a role for 5hmc in hepatocyte DNA damage as well. Mechanistic studies revealed that inhibition of TET1 promoted apoptotic gene expression. Similarly, targeting TET1 activity by removing cosubstrate promoted apoptosis and DNA damage. Furthermore, treatment with 5-azacitidine significantly mimics these effects, suggesting that chronic ethanol consumption promotes hepatocyte apoptosis and DNA damage by diminishing TET1-mediated 5hmC formation and DNA methylation. In summary, the current study provides a novel molecular insight that TET1-mediated 5hmC is involved in hepatocyte apoptosis in ALD progression.-Ji, C., Nagaoka, K., Zou, J., Casulli, S., Lu, S., Cao, K. Y., Zhang, H., Iwagami, Y., Carlson, R. I., Brooks, K., Lawrence, J., Mueller, W., Wands, J. R., Huang, C.-K. Chronic ethanol-mediated hepatocyte apoptosis links to decreased TET1 and 5-hydroxymethylcytosine formation.
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Affiliation(s)
- Chengcheng Ji
- Division of Gastroenterology and Liver Research Center, Rhode Island Hospital, Warren Alpert Medical School, Brown University, Providence, Rhode Island, USA.,Critical Care Center, Beijing 302 Hospital, Beijing, China
| | - Katsuya Nagaoka
- Division of Gastroenterology and Liver Research Center, Rhode Island Hospital, Warren Alpert Medical School, Brown University, Providence, Rhode Island, USA
| | - Jing Zou
- Division of Gastroenterology and Liver Research Center, Rhode Island Hospital, Warren Alpert Medical School, Brown University, Providence, Rhode Island, USA.,Department of Gastroenterology, Guangdong Provincial Key Laboratory of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Sarah Casulli
- Division of Gastroenterology and Liver Research Center, Rhode Island Hospital, Warren Alpert Medical School, Brown University, Providence, Rhode Island, USA
| | - Shaolei Lu
- Department of Pathology and Laboratory Medicine, Rhode Island Hospital, Warren Alpert Medical School, Brown University, Providence, Rhode Island, USA
| | - Kevin Y Cao
- Division of Gastroenterology and Liver Research Center, Rhode Island Hospital, Warren Alpert Medical School, Brown University, Providence, Rhode Island, USA
| | - Hongyu Zhang
- Division of Gastroenterology and Liver Research Center, Rhode Island Hospital, Warren Alpert Medical School, Brown University, Providence, Rhode Island, USA
| | - Yoshifumi Iwagami
- Division of Gastroenterology and Liver Research Center, Rhode Island Hospital, Warren Alpert Medical School, Brown University, Providence, Rhode Island, USA
| | - Rolf I Carlson
- Division of Gastroenterology and Liver Research Center, Rhode Island Hospital, Warren Alpert Medical School, Brown University, Providence, Rhode Island, USA
| | - Keri Brooks
- Division of Gastroenterology and Liver Research Center, Rhode Island Hospital, Warren Alpert Medical School, Brown University, Providence, Rhode Island, USA
| | - Jonathan Lawrence
- Division of Gastroenterology and Liver Research Center, Rhode Island Hospital, Warren Alpert Medical School, Brown University, Providence, Rhode Island, USA
| | - William Mueller
- Division of Gastroenterology and Liver Research Center, Rhode Island Hospital, Warren Alpert Medical School, Brown University, Providence, Rhode Island, USA
| | - Jack R Wands
- Division of Gastroenterology and Liver Research Center, Rhode Island Hospital, Warren Alpert Medical School, Brown University, Providence, Rhode Island, USA
| | - Chiung-Kuei Huang
- Division of Gastroenterology and Liver Research Center, Rhode Island Hospital, Warren Alpert Medical School, Brown University, Providence, Rhode Island, USA
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Huang CK, Iwagami Y, Zou J, Casulli S, Lu S, Nagaoka K, Ji C, Ogawa K, Cao KY, Gao JS, Carlson RI, Wands JR. Aspartate beta-hydroxylase promotes cholangiocarcinoma progression by modulating RB1 phosphorylation. Cancer Lett 2018; 429:1-10. [PMID: 29733964 DOI: 10.1016/j.canlet.2018.04.041] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Revised: 04/27/2018] [Accepted: 04/30/2018] [Indexed: 01/19/2023]
Abstract
Cholangiocarcinoma (CCA) is a highly lethal and aggressive disease. Recently, IDH1/2 mutations have been identified in approximately 20% of CCAs which suggests an involvement of 2-oxoglutarate (2-OG) -dependent dioxygenases in oncogenesis. We investigated if the 2-OG dependent dioxygenase, aspartate beta-hydroxylase (ASPH) was important in tumor development and growth. Immunoassays were used to clarify how ASPH modulates CCA progression by promoting phosphorylation of the retinoblastoma protein (RB1). A xenograft model was employed to determine the role of ASPH on CCA growth. Knockdown of ASPH expression inhibited CCA development and growth by reducing RB1 phosphorylation. Expression of ASPH promoted direct protein interaction between RB1, cyclin-dependent kinases, and cyclins. Treatment with 2-OG-dependent dioxygenase and ASPH inhibitors suppressed the interaction between RB1 and CDK4 as well as RB1 phosphorylation. Knockdown of ASPH expression inhibited CCA progression and RB1 phosphorylation in vivo and they were found to be highly expressed in human CCAs. Knockdown of ASPH expression altered CCA development by modulating RB1 phosphorylation, as one of the major factors regulating the growth of these tumors.
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Affiliation(s)
- Chiung-Kuei Huang
- Liver Research Center and the Division of Gastroenterology, Warren Alpert Medical School of Brown University, Rhode Island Hospital, 55 Claverick St, Providence, RI, 02903, USA
| | - Yoshifumi Iwagami
- Liver Research Center and the Division of Gastroenterology, Warren Alpert Medical School of Brown University, Rhode Island Hospital, 55 Claverick St, Providence, RI, 02903, USA
| | - Jing Zou
- Liver Research Center and the Division of Gastroenterology, Warren Alpert Medical School of Brown University, Rhode Island Hospital, 55 Claverick St, Providence, RI, 02903, USA
| | - Sarah Casulli
- Liver Research Center and the Division of Gastroenterology, Warren Alpert Medical School of Brown University, Rhode Island Hospital, 55 Claverick St, Providence, RI, 02903, USA
| | - Shaolei Lu
- Department of Pathology and Laboratory Medicine, Warren Alpert Medical School of Brown University, Rhode Island Hospital, 593 Eddy St, Providence, RI, 02903, USA
| | - Katsuya Nagaoka
- Liver Research Center and the Division of Gastroenterology, Warren Alpert Medical School of Brown University, Rhode Island Hospital, 55 Claverick St, Providence, RI, 02903, USA
| | - Chengcheng Ji
- Liver Research Center and the Division of Gastroenterology, Warren Alpert Medical School of Brown University, Rhode Island Hospital, 55 Claverick St, Providence, RI, 02903, USA
| | - Kousuke Ogawa
- Liver Research Center and the Division of Gastroenterology, Warren Alpert Medical School of Brown University, Rhode Island Hospital, 55 Claverick St, Providence, RI, 02903, USA
| | - Kevin Y Cao
- Liver Research Center and the Division of Gastroenterology, Warren Alpert Medical School of Brown University, Rhode Island Hospital, 55 Claverick St, Providence, RI, 02903, USA
| | - Jin-Song Gao
- Liver Research Center and the Division of Gastroenterology, Warren Alpert Medical School of Brown University, Rhode Island Hospital, 55 Claverick St, Providence, RI, 02903, USA
| | - Rolf I Carlson
- Liver Research Center and the Division of Gastroenterology, Warren Alpert Medical School of Brown University, Rhode Island Hospital, 55 Claverick St, Providence, RI, 02903, USA
| | - Jack R Wands
- Liver Research Center and the Division of Gastroenterology, Warren Alpert Medical School of Brown University, Rhode Island Hospital, 55 Claverick St, Providence, RI, 02903, USA.
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Iwagami Y, Casulli S, Nagaoka K, Kim M, Carlson RI, Ogawa K, Lebowitz MS, Fuller S, Biswas B, Stewart S, Dong X, Ghanbari H, Wands JR. Lambda phage-based vaccine induces antitumor immunity in hepatocellular carcinoma. Heliyon 2017; 3:e00407. [PMID: 28971150 PMCID: PMC5619992 DOI: 10.1016/j.heliyon.2017.e00407] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Revised: 05/26/2017] [Accepted: 09/11/2017] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND AND AIMS Hepatocellular carcinoma (HCC) is a difficult to treat tumor with a poor prognosis. Aspartate β-hydroxylase (ASPH) is a highly conserved enzyme overexpressed on the cell surface of both murine and human HCC cells. METHODS We evaluated therapeutic effects of nanoparticle lambda (λ) phage vaccine constructs against ASPH expressing murine liver tumors. Mice were immunized before and after subcutaneous implantation of a syngeneic BNL HCC cell line. Antitumor actively was assessed by generation of antigen specific cellular immune responses and the identification of tumor infiltrating lymphocytes. RESULTS Prophylactic and therapeutic immunization significantly delayed HCC growth and progression. ASPH-antigen specific CD4+ and CD8+ lymphocytes were identified in the spleen of tumor bearing mice and cytotoxicity was directed against ASPH expressing BNL HCC cells. Furthermore, vaccination generated antigen specific Th1 and Th2 cytokine secretion by immune cells. There was widespread necrosis with infiltration of CD3+ and CD8+ T cells in HCC tumors of λ phage vaccinated mice compared to controls. Moreover, further confirmation of anti-tumor effects on ASPH expressing tumor cell growth were obtained in another murine syngeneic vaccine model with pulmonary metastases. CONCLUSIONS These observations suggest that ASPH may serve as a highly antigenic target for immunotherapy.
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Affiliation(s)
- Yoshifumi Iwagami
- Division of Gastroenterology and Liver Research Center, Warren Alpert Medical School of Brown University and Rhode Island Hospital, Providence, RI, 02903, USA
| | - Sarah Casulli
- Division of Gastroenterology and Liver Research Center, Warren Alpert Medical School of Brown University and Rhode Island Hospital, Providence, RI, 02903, USA
| | - Katsuya Nagaoka
- Division of Gastroenterology and Liver Research Center, Warren Alpert Medical School of Brown University and Rhode Island Hospital, Providence, RI, 02903, USA
| | - Miran Kim
- Division of Gastroenterology and Liver Research Center, Warren Alpert Medical School of Brown University and Rhode Island Hospital, Providence, RI, 02903, USA
| | - Rolf I Carlson
- Division of Gastroenterology and Liver Research Center, Warren Alpert Medical School of Brown University and Rhode Island Hospital, Providence, RI, 02903, USA
| | - Kosuke Ogawa
- Division of Gastroenterology and Liver Research Center, Warren Alpert Medical School of Brown University and Rhode Island Hospital, Providence, RI, 02903, USA
| | | | - Steve Fuller
- Panacea Pharmaceuticals, Gaithersburg, MD, 20877, USA
| | | | | | - Xiaoqun Dong
- Department of Internal Medicine, College of Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA
| | | | - Jack R Wands
- Division of Gastroenterology and Liver Research Center, Warren Alpert Medical School of Brown University and Rhode Island Hospital, Providence, RI, 02903, USA
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Huang CK, Aihara A, Iwagami Y, Yu T, Carlson R, Koga H, Kim M, Zou J, Casulli S, Wands JR. Expression of transforming growth factor β1 promotes cholangiocarcinoma development and progression. Cancer Lett 2016; 380:153-62. [PMID: 27364974 DOI: 10.1016/j.canlet.2016.05.038] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Revised: 04/26/2016] [Accepted: 05/05/2016] [Indexed: 01/07/2023]
Abstract
BACKGROUND AND AIMS The role of transforming growth factor beta 1 (TGFβ1) in cholangiocarcinoma (CCA) initiation and growth requires further definition. METHODS We employed pharmacological and genetic approaches to inhibit or enhance TGFβ1 signaling, respectively, and determine the cellular mechanisms involved. RESULTS It was observed that inhibiting TGFβ1 activity with short hairpin RNA (shRNA) or pharmaceutical agents suppressed CCA development and growth, whereas overexpression of TGFβ1 enhanced CCA tumor size and promoted intrahepatic metastasis in a rat model. Suppression of TGFβ1 activity inhibits downstream target gene expression mediated by miR-34a that includes cyclin D1, CDK6, and c-Met. In addition, "knockdown" of TGFβ1 expression revealed a miR-34a positive feedback mechanism for enhanced p21 expression in CCAs. A miR-34a inhibitor reversed the effects of "knocking down" TGFβ1 on cell growth, migration, cyclin D1, CDK6 and c-Met expression, suggesting that TGFβ1 mediated effects occur, in part, through this miR-34a signaling pathway. Overexpression of TGFβ1 was associated with CCA tumor progression. CONCLUSIONS This study suggests that TGFβ1 is involved in CCA tumor progression and participates through miR-34a mediated downstream cascades, and is a target to inhibit CCA development and growth.
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Affiliation(s)
- Chiung-Kuei Huang
- Division of Gastroenterology & Liver Research Center, Warren Alpert Medical School of Brown University and Rhode Island Hospital, Providence, RI 02903, USA
| | - Arihiro Aihara
- Division of Gastroenterology & Liver Research Center, Warren Alpert Medical School of Brown University and Rhode Island Hospital, Providence, RI 02903, USA
| | - Yoshifumi Iwagami
- Division of Gastroenterology & Liver Research Center, Warren Alpert Medical School of Brown University and Rhode Island Hospital, Providence, RI 02903, USA
| | - Tunan Yu
- Division of Gastroenterology & Liver Research Center, Warren Alpert Medical School of Brown University and Rhode Island Hospital, Providence, RI 02903, USA
| | - Rolf Carlson
- Division of Gastroenterology & Liver Research Center, Warren Alpert Medical School of Brown University and Rhode Island Hospital, Providence, RI 02903, USA
| | - Hironori Koga
- Division of Gastroenterology, Department of Medicine, Kurume University School of Medicine, 67 Asahi-machi, Kurume 830-0011, Japan
| | - Miran Kim
- Division of Gastroenterology & Liver Research Center, Warren Alpert Medical School of Brown University and Rhode Island Hospital, Providence, RI 02903, USA
| | - Jing Zou
- Division of Gastroenterology & Liver Research Center, Warren Alpert Medical School of Brown University and Rhode Island Hospital, Providence, RI 02903, USA
| | - Sarah Casulli
- Division of Gastroenterology & Liver Research Center, Warren Alpert Medical School of Brown University and Rhode Island Hospital, Providence, RI 02903, USA
| | - Jack R Wands
- Division of Gastroenterology & Liver Research Center, Warren Alpert Medical School of Brown University and Rhode Island Hospital, Providence, RI 02903, USA.
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Sauce D, Dong Y, Campillo-Gimenez L, Casulli S, Bayard C, Autran B, Boddaert J, Appay V, Elbim C. Reduced Oxidative Burst by Primed Neutrophils in the Elderly Individuals Is Associated With Increased Levels of the CD16bright/CD62LdimImmunosuppressive Subset. J Gerontol A Biol Sci Med Sci 2016; 72:163-172. [DOI: 10.1093/gerona/glw062] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Accepted: 03/16/2016] [Indexed: 12/28/2022] Open
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Deligne C, Casulli S, Pigenet A, Bougault C, Campillo-Gimenez L, Nourissat G, Berenbaum F, Elbim C, Houard X. Differential expression of interleukin-17 and interleukin-22 in inflamed and non-inflamed synovium from osteoarthritis patients. Osteoarthritis Cartilage 2015; 23:1843-52. [PMID: 26521730 DOI: 10.1016/j.joca.2014.12.007] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2014] [Revised: 11/05/2014] [Accepted: 12/04/2014] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Synovitis associated with osteoarthritis (OA) is directly responsible for several clinical symptoms and reflects OA's structural progression. This study sought to analyze the expression of proinflammatory mediations, including Interleukin (IL)-17 and IL-22, which play key roles in regulating inflammatory processes, in inflamed and non-inflamed areas of osteoarthritic synovium. METHODS Synovium from knees of 32 OA patients were collected at surgery. Macroscopic evaluation of inflammation enabled inflamed and non-inflamed areas to be separated. Samples were incubated to obtain tissue-conditioned media. Quantitative mRNA expression of proinflammatory mediators was analyzed by RT-PCR and protein levels by ELISA and gelatin zymography. Immunohistochemistry and histology were performed. RESULTS Inflamed synovium were characterized by increased leukocyte infiltration and a higher vessel-to-tissue area ratio than non-inflamed tissues. Macrophages, T and B lymphocytes, and some neutrophils were found only in the inflamed tissue, and only in the subintimal layer. Levels of proinflammatory cytokines and MMP-9 were significantly higher in tissue-conditioned media from inflamed than non-inflamed tissues. Inflamed areas were associated with higher expression of IL-17 and IL-22, both correlated with the combined release of IL-6, IL-23, and TGFβ1. CONCLUSION Our results showed that inflammatory cytokines, including IL-17 and IL-22, are expressed at higher levels by inflamed OA synovium and suggest IL-22 involvement in OA pathophysiology. This study will help identify new therapeutic strategies for OA, especially the targeting of IL-22 to decrease inflammation.
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Affiliation(s)
- C Deligne
- Sorbonne University, UPMC Univ Paris 06, UMR_S 938, F-75005 Paris, France; INSERM UMR_S938, UPMC Univ Paris 06, F-75012 Paris, France; Inflammation-Immunopathology-Biotherapy Department (DHU i2B), 184 rue du Faubourg Saint-Antoine, F-75012 Paris, France
| | - S Casulli
- Sorbonne University, UPMC Univ Paris 06, UMR_S 938, F-75005 Paris, France; INSERM UMR_S938, UPMC Univ Paris 06, F-75012 Paris, France
| | - A Pigenet
- Sorbonne University, UPMC Univ Paris 06, UMR_S 938, F-75005 Paris, France; INSERM UMR_S938, UPMC Univ Paris 06, F-75012 Paris, France; Inflammation-Immunopathology-Biotherapy Department (DHU i2B), 184 rue du Faubourg Saint-Antoine, F-75012 Paris, France
| | - C Bougault
- Sorbonne University, UPMC Univ Paris 06, UMR_S 938, F-75005 Paris, France; INSERM UMR_S938, UPMC Univ Paris 06, F-75012 Paris, France; Inflammation-Immunopathology-Biotherapy Department (DHU i2B), 184 rue du Faubourg Saint-Antoine, F-75012 Paris, France
| | - L Campillo-Gimenez
- Sorbonne University, UPMC Univ Paris 06, UMR_S 938, F-75005 Paris, France; INSERM UMR_S938, UPMC Univ Paris 06, F-75012 Paris, France
| | - G Nourissat
- Sorbonne University, UPMC Univ Paris 06, UMR_S 938, F-75005 Paris, France; INSERM UMR_S938, UPMC Univ Paris 06, F-75012 Paris, France; Inflammation-Immunopathology-Biotherapy Department (DHU i2B), 184 rue du Faubourg Saint-Antoine, F-75012 Paris, France; Department of Orthopaedic Surgery and Traumatology, Assistance Publique - Hôpitaux de Paris, Saint-Antoine Hospital, 184 rue du Faubourg Saint-Antoine, F-75012 Paris, France
| | - F Berenbaum
- Sorbonne University, UPMC Univ Paris 06, UMR_S 938, F-75005 Paris, France; INSERM UMR_S938, UPMC Univ Paris 06, F-75012 Paris, France; Inflammation-Immunopathology-Biotherapy Department (DHU i2B), 184 rue du Faubourg Saint-Antoine, F-75012 Paris, France; Department of Rheumatology, Assistance Publique - Hôpitaux de Paris, Saint-Antoine Hospital, 184 rue du Faubourg Saint-Antoine, F-75012 Paris, France.
| | - C Elbim
- Sorbonne University, UPMC Univ Paris 06, UMR_S 938, F-75005 Paris, France; INSERM UMR_S938, UPMC Univ Paris 06, F-75012 Paris, France
| | - X Houard
- Sorbonne University, UPMC Univ Paris 06, UMR_S 938, F-75005 Paris, France; INSERM UMR_S938, UPMC Univ Paris 06, F-75012 Paris, France; Inflammation-Immunopathology-Biotherapy Department (DHU i2B), 184 rue du Faubourg Saint-Antoine, F-75012 Paris, France
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Campillo-Gimenez L, Casulli S, Dudoit Y, Seang S, Carcelain G, Lambert-Niclot S, Appay V, Autran B, Tubiana R, Elbim C. Neutrophils in antiretroviral therapy-controlled HIV demonstrate hyperactivation associated with a specific IL-17/IL-22 environment. J Allergy Clin Immunol 2014; 134:1142-52.e5. [PMID: 25042982 DOI: 10.1016/j.jaci.2014.05.040] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [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: 02/05/2014] [Revised: 05/30/2014] [Accepted: 05/30/2014] [Indexed: 12/22/2022]
Abstract
BACKGROUND Despite control of HIV infection under antiretroviral therapy (ART), immune T-cell activation persists in patients with controlled HIV infection, who are at higher risk of inflammatory diseases than the general population. PMNs play a key role in host defenses against invading microorganisms but also potentiate inflammatory reactions in cases of excessive or misdirected responses. OBJECTIVE The aim of our study was to analyze PMN functions in 60 ART-treated and controlled HIV-infected patients (viral load, <20 RNA copies/mL; CD4 count, ≥ 350 cells/mm(3)) with (HIV[I] group) and without (HIV[NI] group) diseases related to an inflammatory process and to compare them with 22 healthy control subjects. METHODS Flow cytometry was used to evaluate PMN functions in whole-blood conditions. We studied in parallel the activation markers of T lymphocytes and monocytes and the proinflammatory cytokine environment. RESULTS Blood samples from HIV-infected patients revealed basal PMN hyperactivation associated with deregulation of the apoptosis/necrosis equilibrium. Interestingly, this hyperactivation was greater in HIV(I) than HIV(NI) patients and contrasted with a lack of monocyte activation in both groups. The percentage of circulating cells producing IL-17 was also significantly higher in HIV-infected patients than in control subjects and was positively correlated with markers of basal PMN activation. In addition, the detection of IL-22 overproduction in HIV(NI) patients suggests that it might contribute to counteracting chronic inflammatory processes during HIV infection. CONCLUSIONS This study thus demonstrates the presence of highly activated PMNs in HIV-infected patients receiving effective ART and the association of these cells with a specific IL-17/IL-22 environment.
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Affiliation(s)
- Laure Campillo-Gimenez
- Sorbonne University, UPMC University Paris 06, Paris, France; INSERM, Centre d'Immunologie et des Maladies Infectieuses, UMR-S CR7, INSERM U1135, Paris, France
| | - Sarah Casulli
- Sorbonne University, UPMC University Paris 06, Paris, France; INSERM, Centre d'Immunologie et des Maladies Infectieuses, UMR-S CR7, INSERM U1135, Paris, France
| | - Yasmine Dudoit
- AP-HP, Hôpital Pitié-Salpêtrière, Service des maladies infectieuses et tropicales, Paris, France; Sorbonne University, UPMC University Paris 06, UMR-S 1136, Pierre Louis Institute of Epidemiology and Public Health, Paris, France
| | - Sophie Seang
- AP-HP, Hôpital Pitié-Salpêtrière, Service des maladies infectieuses et tropicales, Paris, France; Sorbonne University, UPMC University Paris 06, UMR-S 1136, Pierre Louis Institute of Epidemiology and Public Health, Paris, France
| | - Guislaine Carcelain
- INSERM, Centre d'Immunologie et des Maladies Infectieuses, UMR-S CR7, INSERM U1135, Paris, France; AP-HP, Hôpital Pitié-Salpêtrière, Laboratoire d'Immunologie Cellulaire et Tissulaire, Paris, France
| | - Sidonie Lambert-Niclot
- Sorbonne University, UPMC University Paris 06, UMR-S 1136, Pierre Louis Institute of Epidemiology and Public Health, Paris, France; AP-HP, Hôpital Pitié-Salpêtrière, Laboratoire de Virologie, Paris, France
| | - Victor Appay
- INSERM, Centre d'Immunologie et des Maladies Infectieuses, UMR-S CR7, INSERM U1135, Paris, France
| | - Brigitte Autran
- INSERM, Centre d'Immunologie et des Maladies Infectieuses, UMR-S CR7, INSERM U1135, Paris, France; AP-HP, Hôpital Pitié-Salpêtrière, Laboratoire d'Immunologie Cellulaire et Tissulaire, Paris, France
| | - Roland Tubiana
- AP-HP, Hôpital Pitié-Salpêtrière, Service des maladies infectieuses et tropicales, Paris, France; Sorbonne University, UPMC University Paris 06, UMR-S 1136, Pierre Louis Institute of Epidemiology and Public Health, Paris, France
| | - Carole Elbim
- Sorbonne University, UPMC University Paris 06, Paris, France; INSERM, Centre d'Immunologie et des Maladies Infectieuses, UMR-S CR7, INSERM U1135, Paris, France.
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Casulli S, Elbim C. Interactions between human immunodeficiency virus type 1 and polymorphonuclear neutrophils. J Innate Immun 2013; 6:13-20. [PMID: 23867213 DOI: 10.1159/000353588] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2013] [Accepted: 06/04/2013] [Indexed: 12/11/2022] Open
Abstract
Polymorphonuclear neutrophils (PMN) are the most abundant circulating leukocytes. They represent a first line of innate immunity against a large panel of microbial pathogens, pending development of specific immune responses. The role of PMN in human immunodeficiency virus type 1 (HIV-1) disease has mainly been investigated from the point of view of the increased susceptibility of HIV-1-infected patients to bacterial and fungal infections. However, it is now clear that the relationship between PMN and HIV-1 is far more complex. This review examines both the beneficial and the detrimental effects of PMN during HIV infection.
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Affiliation(s)
- Sarah Casulli
- Université Pierre et Marie Curie-Paris 6, INSERM UMR-S 945, Immunité et Infection, Hôpital Pitié Salpêtrière, Paris, France
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Casulli S, Topçu S, Fattoum L, von Gunten S, Simon HU, Teillaud JL, Bayry J, Kaveri SV, Elbim C. A differential concentration-dependent effect of IVIg on neutrophil functions: relevance for anti-microbial and anti-inflammatory mechanisms. PLoS One 2011; 6:e26469. [PMID: 22065996 PMCID: PMC3204983 DOI: 10.1371/journal.pone.0026469] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [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: 07/12/2011] [Accepted: 09/27/2011] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Polymorphonuclear neutrophils (PMN) play a key role in host defences against invading microorganisms but can also potentiate detrimental inflammatory reactions in case of excessive or misdirected responses. Intravenous immunoglobulins (IVIg) are used to treat patients with immune deficiencies and, at higher doses, in autoimmune, allergic and systemic inflammatory disorders. METHODOLOGY/PRINCIPAL FINDINGS We used flow cytometry to examine the effects of IVIg on PMN functions and survival, using whole-blood conditions in order to avoid artifacts due to isolation procedures. IVIg at low concentrations induced PMN activation, as reflected by decreased L-selectin and increased CD11b expression at the PMN surface, oxidative burst enhancement, and prolonged cell survival. In contrast, IVIg at higher concentrations inhibited LPS-induced CD11b degranulation and oxidative burst priming, and counteracted LPS-induced PMN lifespan prolongation. CONCLUSIONS/SIGNIFICANCE IVIg appears to have differential, concentration-dependent effects on PMN, possibly supporting the use of IVIg as either an anti-microbial or an anti-inflammatory agent.
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Affiliation(s)
- Sarah Casulli
- Centre de Recherche des Cordeliers, Université Pierre et Marie Curie – Paris 6, UMR S 872, Paris, F-75006 France and Université Paris Descartes, UMR S 872, Paris, F-75006 France; INSERM, U872, Paris, F-75006, France
| | - Selma Topçu
- Centre de Recherche des Cordeliers, Université Pierre et Marie Curie – Paris 6, UMR S 872, Paris, F-75006 France and Université Paris Descartes, UMR S 872, Paris, F-75006 France; INSERM, U872, Paris, F-75006, France
| | - Lakhdar Fattoum
- Centre de Recherche des Cordeliers, Université Pierre et Marie Curie – Paris 6, UMR S 872, Paris, F-75006 France and Université Paris Descartes, UMR S 872, Paris, F-75006 France; INSERM, U872, Paris, F-75006, France
| | | | - Hans-Uwe Simon
- Institute of Pharmacology, University of Bern, Bern, Switzerland
| | - Jean-Luc Teillaud
- Centre de Recherche des Cordeliers, Université Pierre et Marie Curie – Paris 6, UMR S 872, Paris, F-75006 France and Université Paris Descartes, UMR S 872, Paris, F-75006 France; INSERM, U872, Paris, F-75006, France
| | - Jagadeesh Bayry
- Centre de Recherche des Cordeliers, Université Pierre et Marie Curie – Paris 6, UMR S 872, Paris, F-75006 France and Université Paris Descartes, UMR S 872, Paris, F-75006 France; INSERM, U872, Paris, F-75006, France
| | - Srini V. Kaveri
- Centre de Recherche des Cordeliers, Université Pierre et Marie Curie – Paris 6, UMR S 872, Paris, F-75006 France and Université Paris Descartes, UMR S 872, Paris, F-75006 France; INSERM, U872, Paris, F-75006, France
- * E-mail: (SVK); (CE)
| | - Carole Elbim
- Centre de Recherche des Cordeliers, Université Pierre et Marie Curie – Paris 6, UMR S 872, Paris, F-75006 France and Université Paris Descartes, UMR S 872, Paris, F-75006 France; INSERM, U872, Paris, F-75006, France
- * E-mail: (SVK); (CE)
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Berthelot F, Fattoum L, Casulli S, Gozlan J, Maréchal V, Elbim C. The Effect of HMGB1, a Damage-Associated Molecular Pattern Molecule, on Polymorphonuclear Neutrophil Migration Depends on Its Concentration. J Innate Immun 2011; 4:41-58. [DOI: 10.1159/000328798] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2010] [Accepted: 04/18/2011] [Indexed: 11/19/2022] Open
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