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Monteiro CAP, Oliveira ADPR, Silva RC, Lima RRM, Souto FO, Baratti MO, Carvalho HF, Santos BS, Cabral Filho PE, Fontes A. Evaluating internalization and recycling of folate receptors in breast cancer cells using quantum dots. J Photochem Photobiol B 2020; 209:111918. [PMID: 32531690 DOI: 10.1016/j.jphotobiol.2020.111918] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 02/03/2020] [Accepted: 05/22/2020] [Indexed: 12/11/2022]
Abstract
Folic acid (FA) regulates metabolic activities essential to the human body. FA receptor (FR) overexpression has been reported for many cancers, but there are still few or conflicting data about FRs in breast cancer cells. Quantum dots (QDs) have arisen as tools to elucidate aspects on FRs, due to their unique physicochemical properties. Herein, QDs conjugated to FA were explored to study the internalization and recycling of FRs in breast cancer cells, using HeLa as an out-group control. QDs were covalently conjugated to FA under different conditions. The best conjugate was applied to study FRs in HeLa, MCF7, MDA-MB231, and T47D cells applying confocal microscopy and flow cytometry analyses. The conjugation efficiency and specificity were evaluated, respectively, using fluorescence correlation spectroscopy (FCS) and saturation assays. FCS confirmed the effectiveness of the conjugation. HeLa and T47D had/internalized a higher amount of FRs (95% and 90% of labeling, respectively) than MDA-MB231 cells (68%). MCF7 cells seem to have very low functional FRs (3%). Saturation assays proved the specificity of QD-FA conjugates and suggested that FR recycling rate is low in the majority of cells studied, except for T47D. QD-FA conjugates were successfully developed. Therapies targeting FRs may be more effective for HeLa, T47D, and MDA-MB231.
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Affiliation(s)
- Camila A P Monteiro
- Departamento de Biofísica e Radiobiologia, Universidade Federal de Pernambuco, Recife, PE, Brazil
| | - Aline D P R Oliveira
- Departamento de Biofísica e Radiobiologia, Universidade Federal de Pernambuco, Recife, PE, Brazil
| | - Ryan C Silva
- Departamento de Biofísica e Radiobiologia, Universidade Federal de Pernambuco, Recife, PE, Brazil
| | - Rennan R M Lima
- Departamento de Biofísica e Radiobiologia, Universidade Federal de Pernambuco, Recife, PE, Brazil
| | - Fabricio O Souto
- Laboratório de Imunopatologia Keizo Asami, Universidade Federal de Pernambuco, Recife, PE, Brazil
| | - Mariana O Baratti
- Instituto Nacional de Ciência e Tecnologia de Fotônica Aplicada à Biologia Celular, Universidade Estadual de Campinas, Campinas, SP, Brazil
| | - Hernandes F Carvalho
- Instituto Nacional de Ciência e Tecnologia de Fotônica Aplicada à Biologia Celular, Universidade Estadual de Campinas, Campinas, SP, Brazil
| | - Beate S Santos
- Departmento de Ciências Farmacêuticas, Universidade Federal de Pernambuco, Recife, PE, Brazil
| | - Paulo E Cabral Filho
- Departamento de Biofísica e Radiobiologia, Universidade Federal de Pernambuco, Recife, PE, Brazil.
| | - Adriana Fontes
- Departamento de Biofísica e Radiobiologia, Universidade Federal de Pernambuco, Recife, PE, Brazil.
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Zarpelon AC, Fattori V, Souto FO, Pinto LG, Pinho-Ribeiro FA, Ruiz-Miyazawa KW, Turato WM, Cunha TM, da Costa FB, Cunha FQ, Casagrande R, Arakawa NS, Verri WA. The Sesquiterpene Lactone, Budlein A, Inhibits Antigen-Induced Arthritis in Mice: Role of NF-κB and Cytokines. Inflammation 2017; 40:2020-2032. [DOI: 10.1007/s10753-017-0642-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Talbot J, Bianchini FJ, Nascimento DC, Oliveira RDR, Souto FO, Pinto LG, Peres RS, Silva JR, Almeida SCL, Louzada-Junior P, Cunha TM, Cunha FQ, Alves-Filho JC. CCR2 Expression in Neutrophils Plays a Critical Role in Their Migration Into the Joints in Rheumatoid Arthritis. Arthritis Rheumatol 2015; 67:1751-9. [PMID: 25779331 DOI: 10.1002/art.39117] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Accepted: 03/12/2015] [Indexed: 01/07/2023]
Abstract
OBJECTIVE Infiltration of neutrophils into the joints plays an important role in bone erosion and articular destruction in rheumatoid arthritis (RA). Neutrophil trafficking during inflammation is a process that involves activation of chemotactic receptors. Recent findings suggest that changes in chemotactic receptor patterns could occur in neutrophils under certain inflammatory conditions. The aim of this study was to evaluate the gain of responsiveness of neutrophils to CCL2 in RA patients and to assess the role of CCL2 in driving neutrophil infiltration into the joints. METHODS Neutrophils were purified from the peripheral blood of patients with RA or from mice with antigen-induced arthritis (AIA). Expression of CCR2 was evaluated using polymerase chain reaction, flow cytometry, and immunofluorescence analyses. In vitro chemotaxis to CCL2 was assayed to evaluate the functional significance of de novo CCR2 expression. The murine AIA model was used to evaluate the in vivo role of CCR2 in neutrophil infiltration into the joints. RESULTS High CCR2 expression and responsiveness to CCL2 were observed in neutrophils from the blood of patients with early RA and in neutrophils from the blood and bone marrow of mice with AIA. Genetic deficiency or pharmacologic inhibition of CCR2 protected against the infiltration of neutrophils into the joints. This protection was not associated with an impairment of the neutrophil chemotactic ability or CXC chemokine production in the joints. Moreover, adoptive transfer of wild-type mouse neutrophils to CCR2-deficient mice restored neutrophil infiltration and the articular mechanical hyperalgesia associated with joint inflammation. CONCLUSION These findings suggest that CCR2 is directly involved in the detrimental infiltration of neutrophils into the joints in patients with RA, showing a new inflammatory role of CCR2 during RA flares or active disease.
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Affiliation(s)
- Jhimmy Talbot
- University of São Paulo, Ribeirão Preto Medical School, Ribeirao Preto, Sao Paulo, Brazil
| | - Francine J Bianchini
- University of São Paulo, Ribeirão Preto Medical School, Ribeirao Preto, Sao Paulo, Brazil
| | - Danilele C Nascimento
- University of São Paulo, Ribeirão Preto Medical School, Ribeirao Preto, Sao Paulo, Brazil
| | - Rene D R Oliveira
- University of São Paulo, Ribeirão Preto Medical School, Ribeirao Preto, Sao Paulo, Brazil
| | - Fabricio O Souto
- University of São Paulo, Ribeirão Preto Medical School, Ribeirao Preto, Sao Paulo, Brazil
| | - Larissa G Pinto
- University of São Paulo, Ribeirão Preto Medical School, Ribeirao Preto, Sao Paulo, Brazil
| | - Raphael S Peres
- University of São Paulo, Ribeirão Preto Medical School, Ribeirao Preto, Sao Paulo, Brazil
| | - Jaqueline R Silva
- University of São Paulo, Ribeirão Preto Medical School, Ribeirao Preto, Sao Paulo, Brazil
| | - Sergio C L Almeida
- University of São Paulo, Ribeirão Preto Medical School, Ribeirao Preto, Sao Paulo, Brazil
| | - Paulo Louzada-Junior
- University of São Paulo, Ribeirão Preto Medical School, Ribeirao Preto, Sao Paulo, Brazil
| | - Thiago M Cunha
- University of São Paulo, Ribeirão Preto Medical School, Ribeirao Preto, Sao Paulo, Brazil
| | - Fernando Q Cunha
- University of São Paulo, Ribeirão Preto Medical School, Ribeirao Preto, Sao Paulo, Brazil
| | - Jose C Alves-Filho
- University of São Paulo, Ribeirão Preto Medical School, Ribeirao Preto, Sao Paulo, Brazil
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Sônego F, Castanheira FVS, Czaikoski PG, Kanashiro A, Souto FO, França RO, Nascimento DC, Freitas A, Spiller F, Cunha LD, Zamboni DS, Alves-Filho JC, Cunha FQ. MyD88-, but not Nod1- and/or Nod2-deficient mice, show increased susceptibility to polymicrobial sepsis due to impaired local inflammatory response. PLoS One 2014; 9:e103734. [PMID: 25084278 PMCID: PMC4118952 DOI: 10.1371/journal.pone.0103734] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [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: 07/29/2013] [Accepted: 07/07/2014] [Indexed: 12/13/2022] Open
Abstract
Pathogen recognition and triggering of the inflammatory response following infection in mammals depend mainly on Toll-like and Nod-like receptors. Here, we evaluated the role of Nod1, Nod2 and MyD88-dependent signaling in the chemokine production and neutrophil recruitment to the infectious site during sepsis induced by cecal ligation and puncture (CLP) in C57Bl/6 mice. We demonstrate that Nod1 and Nod2 are not involved in the release of chemokines and recruitment of neutrophils to the infectious site during CLP-induced septic peritonitis because these events were similar in wild-type, Nod1-, Nod2-, Nod1/Nod2- and Rip2-deficient mice. Consequently, the local and systemic bacterial loads were not altered. Accordingly, neither Nod1 nor Nod2 was involved in the production of the circulating cytokines and in the accumulation of leukocytes in the lungs. By contrast, we showed that MyD88-dependent signaling is crucial for the establishment of the local inflammatory response during CLP-induced sepsis. MyD88-deficient mice were susceptible to sepsis because of an impaired local production of chemokines and defective neutrophil recruitment to the infection site. Altogether, these data show that Nod1, Nod2 and Rip2 are not required for local chemokine production and neutrophil recruitment during CLP-induced sepsis, and they reinforce the importance of MyD88-dependent signaling for initiation of a protective host response.
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Affiliation(s)
- Fabiane Sônego
- Faculdade de Medicina de Ribeiraő Preto, Departamento de Farmacologia, Universidade de São Paulo, Ribeiraő Preto, São Paulo, Brasil
| | - Fernanda V. S. Castanheira
- Faculdade de Medicina de Ribeiraő Preto, Departamento de Farmacologia, Universidade de São Paulo, Ribeiraő Preto, São Paulo, Brasil
| | - Paula G. Czaikoski
- Faculdade de Medicina de Ribeiraő Preto, Departamento de Farmacologia, Universidade de São Paulo, Ribeiraő Preto, São Paulo, Brasil
| | - Alexandre Kanashiro
- Faculdade de Medicina de Ribeiraő Preto, Departamento de Farmacologia, Universidade de São Paulo, Ribeiraő Preto, São Paulo, Brasil
| | - Fabricio O. Souto
- Faculdade de Medicina de Ribeiraő Preto, Departamento de Farmacologia, Universidade de São Paulo, Ribeiraő Preto, São Paulo, Brasil
| | - Rafael O. França
- Faculdade de Medicina de Ribeiraő Preto, Departamento de Farmacologia, Universidade de São Paulo, Ribeiraő Preto, São Paulo, Brasil
| | - Daniele C. Nascimento
- Faculdade de Medicina de Ribeiraő Preto, Departamento de Farmacologia, Universidade de São Paulo, Ribeiraő Preto, São Paulo, Brasil
| | - Andressa Freitas
- Faculdade de Medicina de Ribeiraő Preto, Departamento de Farmacologia, Universidade de São Paulo, Ribeiraő Preto, São Paulo, Brasil
| | - Fernando Spiller
- Faculdade de Medicina de Ribeiraő Preto, Departamento de Farmacologia, Universidade de São Paulo, Ribeiraő Preto, São Paulo, Brasil
| | - Larissa D. Cunha
- Faculdade de Medicina de Ribeiraő Preto, Departamento de Biologia Celular e Molecular e Bioagentes Patogênicos, Universidade de São Paulo, Ribeiraő Preto, São Paulo, Brasil
| | - Dario S. Zamboni
- Faculdade de Medicina de Ribeiraő Preto, Departamento de Biologia Celular e Molecular e Bioagentes Patogênicos, Universidade de São Paulo, Ribeiraő Preto, São Paulo, Brasil
| | - José C. Alves-Filho
- Faculdade de Medicina de Ribeiraő Preto, Departamento de Farmacologia, Universidade de São Paulo, Ribeiraő Preto, São Paulo, Brasil
| | - Fernando Q. Cunha
- Faculdade de Medicina de Ribeiraő Preto, Departamento de Farmacologia, Universidade de São Paulo, Ribeiraő Preto, São Paulo, Brasil
- * E-mail:
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Grespan R, Lemos HP, Carregaro V, Verri WA, Souto FO, de Oliveira CJF, Teixeira C, Ribeiro JM, Valenzuela JG, Cunha FQ. The protein LJM 111 from Lutzomyia longipalpis salivary gland extract (SGE) accounts for the SGE-inhibitory effects upon inflammatory parameters in experimental arthritis model. Int Immunopharmacol 2012; 12:603-10. [PMID: 22366405 PMCID: PMC3438676 DOI: 10.1016/j.intimp.2012.02.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2011] [Revised: 12/12/2011] [Accepted: 02/09/2012] [Indexed: 12/11/2022]
Abstract
Several studies have pointed out the immunomodulatory properties of the Salivary Gland Extract (SGE) from Lutzomyia longipalpis. We aimed to identify the SGE component (s) responsible for its effect on ovalbumin (OVA)-induced neutrophil migration (NM) and to evaluate the effect of SGE and components in the antigen-induced arthritis (AIA) model. We tested the anti-arthritic activities of SGE and the recombinant LJM111 salivary protein (rLJM111) by measuring the mechanical hypernociception and the NM into synovial cavity. Furthermore, we measured IL-17, TNF-α and IFN-γ released by lymph nodes cells stimulated with mBSA or anti-CD3 using enzyme-linked immunosorbent assay (ELISA). Additionally, we tested the effect of SGE and rLJM111 on co-stimulatory molecules expression (MHC-II and CD-86) by flow cytometry, TNF-α and IL-10 production (ELISA) of bone marrow-derived dendritic cells (BMDCs) stimulated with LPS, chemotaxis and actin polymerization from neutrophils. Besides, the effect of SGE on CXCR2 and GRK-2 expression on neutrophils was investigated. We identified one plasmid expressing the protein LJM111 that prevented NM in OVA-challenged immunized mice. Furthermore, both SGE and rLJM111 inhibited NM and pain sensitivity in AIA and reduced IL-17, TNF-α and IFN-γ. SGE and rLJM111 also reduced MHC-II and CD-86 expression and TNF-α whereas increased IL-10 release by LPS-stimulated BMDCs. SGE, but not LJM 111, inhibited neutrophils chemotaxis and actin polymerization. Additionally, SGE reduced neutrophil CXCR2 expression and increased GRK-2. Thus, rLJM111 is partially responsible for SGE mechanisms by diminishing DC function and maturation but not chemoattraction of neutrophils.
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Affiliation(s)
- Renata Grespan
- Department of Pharmacology, Faculty of Medicine of Ribeirão Preto, University of Sao Paulo, Ribeirão Preto, SP, Brazil.
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Souto FO, Zarpelon AC, Staurengo-Ferrari L, Fattori V, Casagrande R, Fonseca MJV, Cunha TM, Ferreira SH, Cunha FQ, Verri WA. Quercetin reduces neutrophil recruitment induced by CXCL8, LTB4, and fMLP: inhibition of actin polymerization. J Nat Prod 2011; 74:113-118. [PMID: 21275387 DOI: 10.1021/np1003017] [Citation(s) in RCA: 36] [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] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Recent in vitro data have suggested that the flavonoid quercetin (1) does not affect the functioning of neutrophils. Therefore, we evaluated in vivo and in vitro whether or not 1 affects neutrophil function, focusing on recruitment. The in vivo treatment with 1 inhibited in a dose-dependent manner the recruitment of neutrophils to the peritoneal cavity of mice induced by known chemotatic factors such as CXCL1, CXCL5, LTB(4), and fMLP. Furthermore, 1 also inhibited in a concentration-dependent manner the chemoattraction of human neutrophils induced by CXCL8, LTB(4), and fMLP in a Boyden chamber. In vitro treatment with 1 did not affect human neutrophil surface expression of CXCR1, CXCR2, BLT1, or FLPR1, but rather reduced actin polymerization. These results suggest that 1 inhibits actin polymerization, hence, explaining the inhibition of neutrophil recruitment in vivo and in vitro and highlighting its possible usefulness to diminish excessive neutrophil migration during inflammation.
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Affiliation(s)
- Fabricio O Souto
- Department of Biochemistry and Immunology, School of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo 14049-900, Brazil
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Souto FO, Alves-Filho JC, Turato WM, Auxiliadora-Martins M, Basile-Filho A, Cunha FQ. Essential Role of CCR2 in Neutrophil Tissue Infiltration and Multiple Organ Dysfunction in Sepsis. Am J Respir Crit Care Med 2011; 183:234-42. [DOI: 10.1164/rccm.201003-0416oc] [Citation(s) in RCA: 108] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Martin EL, Souza DG, Fagundes CT, Amaral FA, Assenzio B, Puntorieri V, Del Sorbo L, Fanelli V, Bosco M, Delsedime L, Pinho JF, Lemos VS, Souto FO, Alves-Filho JC, Cunha FQ, Slutsky AS, Ruckle T, Hirsch E, Teixeira MM, Ranieri VM. Phosphoinositide-3 Kinase γ Activity Contributes to Sepsis and Organ Damage by Altering Neutrophil Recruitment. Am J Respir Crit Care Med 2010; 182:762-73. [DOI: 10.1164/rccm.201001-0088oc] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Alves-Filho JC, Sônego F, Souto FO, Freitas A, Verri WA, Auxiliadora-Martins M, Basile-Filho A, McKenzie AN, Xu D, Cunha FQ, Liew FY. Interleukin-33 attenuates sepsis by enhancing neutrophil influx to the site of infection. Nat Med 2010; 16:708-12. [PMID: 20473304 DOI: 10.1038/nm.2156] [Citation(s) in RCA: 364] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2010] [Accepted: 04/16/2010] [Indexed: 11/09/2022]
Abstract
Sepsis is a systemic inflammatory condition following bacterial infection with a high mortality rate and limited therapeutic options. Here we show that interleukin-33 (IL-33) reduces mortality in mice with experimental sepsis from cecal ligation and puncture (CLP). IL-33-treated mice developed increased neutrophil influx into the peritoneal cavity and more efficient bacterial clearance than untreated mice. IL-33 reduced the systemic but not the local proinflammatory response, and it did not induce a T helper type 1 (T(H)1) to T(H)2 shift. The chemokine receptor CXCR2 is crucial for recruitment of neutrophils from the circulation to the site of infection. Activation of Toll-like receptors (TLRs) in neutrophils downregulates CXCR2 expression and impairs neutrophil migration. We show here that IL-33 prevents the downregulation of CXCR2 and inhibition of chemotaxis induced by the activation of TLR4 in mouse and human neutrophils. Furthermore, we show that IL-33 reverses the TLR4-induced reduction of CXCR2 expression in neutrophils via the inhibition of expression of G protein-coupled receptor kinase-2 (GRK2), a serine-threonine protein kinase that induces internalization of chemokine receptors. Finally, we find that individuals who did not recover from sepsis had significantly more soluble ST2 (sST2, the decoy receptor of IL-33) than those who did recover. Together, our results indicate a previously undescribed mechanism of action of IL-33 and suggest a therapeutic potential of IL-33 in sepsis.
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Affiliation(s)
- Jose C Alves-Filho
- Division of Immunology, Infection and Inflammation, Glasgow Biomedical Research Centre, University of Glasgow, Glasgow, UK
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Souto FO, Alves-Filho JC, Turato WM, Nascimento DC, Auxiliadora-Martins M, Basile-Filho A, de Queiroz Cunha F. CCR2 drives neutrophil infiltration and elicits tissue damage in remote organs during sepsis. Crit Care 2010. [PMCID: PMC3254941 DOI: 10.1186/cc9126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Trevelin SC, Alves-Filho JC, Sônego F, Turato W, Nascimento D, Souto FO, Cunha TM, Gazzinelli R, de Queiroz Cunha F. Regulation of neutrophil chemotaxis by toll-like receptor 9 is important for sepsis survival. Crit Care 2010. [PMCID: PMC3254971 DOI: 10.1186/cc9156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Souto FO, Alves-Filho JC, Freitas A, Spiller F, Martins MA, Basile-Filho A, Cunha FQ. CCR2 expression on neutrophils leads to detrimental tissue infiltration during sepsis. Crit Care 2009. [PMCID: PMC4085409 DOI: 10.1186/cc7811] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Alves-Filho JC, Freitas A, Spiller F, Souto FO, Paula-Neto H, Silva JS, Cunha FQ. Toll-like receptor 2 induces chemokine receptor CXCR2 downregulation and neutrophil migration impairment in severe sepsis. Crit Care 2007. [PMCID: PMC3301130 DOI: 10.1186/cc5790] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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