immunology of infectious and parasitic diseases - XXXVII Congress ...

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MIF) monocytes of patients with moderate to severe fibrosis, compared to patients without fibrosis (65.4±46.9 and 100±72.2 MIF in classical and intermediate monocytes, respectively). Conclusion: In schistosomiasis patients with moderate to severe periportal fibrosis, different subsets of monocytes are characterized by a high expression of proinflammatory and profibrotic cytokines such as TNF, IL-6 and TGF-beta, despite the elevated expression of the regulatory molecule IL-10 in these monocytes. Financial support: MCT/CNPq Universal No. 482113/2010-3.
THE IN VITRO ANALYSIS OF iNOS-KO MOUSE MACROPHAGES INFECTED WITH PURPUREOCILLIUM LILACINUM FROM DISTINCT CLINICAL FORMS OF HYALOHYPHOMYCOSIS CARLOS G. G. PONTE 1,2 ; JESSICA R. DE LIMA 1 ; MARIANA SIQUEIRA 1 ; PAULA M. DE LUCA 3 ; CÍNTIA M. BORBA 2 & PAULO R. Z. ANTAS 1 . 1 Laboratório de Imunologia Clínica, 2 Laboratório de Taxonomia, Bioquímica e Bioprospecção de Fungos and 3 Laboratório de Imunoparasitologia, Oswaldo Cruz Institute, FIOCRUZ, Rio de Janeiro. Introduction: Purpureocillium lilacinum is currently recognized as an emerging opportunistic fungus, causing the hyalohyphomycosis infection in adults and children, mostly in immunosuppressed ones. Virtually no data is available regarding the immune mechanisms related to host-pathogen interaction for hyalohyphomycosis caused by this fungus. We aim to explore better this initial contact using a genetic deficient model in order to uncover early critical immunological mechanisms that may play an important role during the infection. Methods and Results: In this study, we have used 3 distinct isolates of P. lilacinum obtained from human clinical cases (skin, tibial area, sinus), and thus in vitro challenged knock-out mouse macrophages, which are believed to be the first host cells to interact with this pathogen. Conidia of P. lilacinum were purified and peritoneal macrophages from iNOS-KO mouse were infected at different time-points and at a ratio of 2:1, respectively. After infection, cells were stained both with "Wright-Giemsa" for light optical microscopy, and with surface markers for flow cytometry. In addition, supernatants were harvested for further assays such as IFN-a ELISA and MMP-9 gelatin zymography. Following 12 hours of incubation, germ tubes were promptly produced, suggesting active metabolism by the fungus, as well as development of branched septate hyphae inside macrophages. Ultimately at 24 hours, the macrophages were completely destroyed. Dissimilar data were found among the P. lilacinum strains used through. High levels of CD18/CD38-double expression were observed, but the MMP-9 (except for the skin isolate) and IFN-a levels (peaked at half-hour of interaction) were equally produced, disregard the clinical isolate used. Conclusion: Besides the mouse model here, highly destructive capability of P. lilacinum has been also observed in vitro in wild-type mouse. Additional studies with other immunological parameters are to come in order to correlate these
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IMMUNOLOGY OF INFECTIOUS AND PARASI
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profiles appear to be dependent on
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INVOLVEMENT OF TNF RECEPTORS IN APO
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Effects of bioactive Cryptococcus n
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DCs expressing Indoleamine 2,3-diox
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DETECTION OF GITR ON PATIENT CERVIX
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DETECTION OF GITR AND IL-10 ON CERV
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VACCINATION WITH SM10.3 ANTIGEN, A
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Financial support: FAPESP, CAPES an
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clearance that follows Sylvio X10/4
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EhMSP-1 - AN ENTAMOEBA HISTOLYTICA
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THERAPY WITH SCFV TRANSFECTED-DENDR
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etween the groups. The results show
Page 27 and 28: Financial support: FIOCRUZ, CNPq.
Page 29 and 30: elease of NETs from human neutrophi
Page 31 and 32: ROLE OF CD18 IN ACTIVATION OF M1 MA
Page 33 and 34: IDENTIFICATION, PURIFICATION AND CH
Page 35 and 36: with hemin showed higher levels of
Page 37 and 38: SEPTIC ARTHRITIS TRIGGERED BY S. au
Page 39 and 40: eing higher levels induced by a vir
Page 41 and 42: parasite load skin. The TGF-β was
Page 43 and 44: cultures, both treatments decreased
Page 45 and 46: observed a tendency to lower parasi
Page 47 and 48: SERUM COMPONENTS AND MONONUCLEAR CE
Page 49 and 50: VIABILITY OF LEISHMANIA (L.) CHAGAS
Page 51 and 52: EVALUATION OF THE INTERFERENCE OF S
Page 53 and 54: IMMUNODETECTION OF THE TGF- β IN L
Page 55 and 56: DIFFERENT LEVELS OF NKT AND NK CELL
Page 57 and 58: Funding: CNPQ; FAPESPA; SESPA; UFPA
Page 59 and 60: saliva that exacerbated leishmania
Page 61 and 62: BACTERIAL FILAMENTATION: SUPER-RESI
Page 63 and 64: IMMUNOLOGICAL PARAMETERS ASSOCIATED
Page 65 and 66: supernatant. BMDC stimulation with
Page 67 and 68: such as number of eosinophils, prot
Page 69 and 70: EVALUATION OF THE PRODUCTION OF TNF
Page 71 and 72: Critical motifs of the Anaplasma ma
Page 73 and 74: SCHISTOSOMA SPP ANTIGENS IMPAIR THE
Page 75 and 76: DOWN-REGULATION OF IFN-g RECEPTOR A
Page 77: MONOCYTES SUBSETS IN SCHISTOSOMIASI
Page 81 and 82: CCR7 IS CRITICAL FOR RESISTANCE AGA
Page 83 and 84: EVALUATION OF THE IMMUNE RESPONSE A
Page 85 and 86: our data suggest that monocyte secr
Page 87 and 88: DIVERGENT OUTCOMES OF THE INTERACTI
Page 89 and 90: they can deactivate immune effector
Page 91 and 92: Conclusions: We observed a signific
Page 93 and 94: TLR2 AND TLR4 EXPRESSION AND NUTRIT
Page 95 and 96: DEVELOPMENT OF MURINE PLACENTAL MAL
Page 97 and 98: INDUCTION OF TH17 LYMPHOCYTES CONTR
Page 99 and 100: Leishmania amazonensis INCREASES EC
Page 101 and 102: TYPE II GRANULOMA INDUCED BY SCHIST
Page 103 and 104: The Role of Eosinophils in Aspergil
Page 105 and 106: compared to baseline (p
Page 107 and 108: disordered loop and NcSAG2A present
Page 109 and 110: Conclusion: We demonstrate the exis
Page 111 and 112: WT. By contrast, uninfected AhR -/-
Page 113 and 114: in the synthesis of proinflammatory
Page 115 and 116: PRODUCTION AND EVALUATION OF CHICKE
Page 117 and 118: allow a conclusion about the differ
Page 119 and 120: contributes to parasite control and
Page 121 and 122: Financial support: FAPESP, CNPq, an
Page 123 and 124: MILTEFOSINE EXERTS ITS LEISHMANICID
Page 125 and 126: IMMUNOMODULATORY ACTIVITIES OF Β-G
Page 127 and 128: REGULATION OF IMMUNE RESPONSE AGAIN
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THE ROLE OF REACTIVE OXIGEN SPECIES
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INNATE AND ADAPTIVE IMMUNE REPONSE
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KINETIC OF THE SPECIFIC HUMMORAL IM
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PURINERGIC RECEPTOR P2Y12 ACTIVATIO
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Evaluation of cytokine and chemokin
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Financial support: This research wa
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COMPARISON OF VIRULENCE AND IMMUNE
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THE IMPACT OF TUBERCULOSIS IN THE I
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GALACTOMANNAN ANTIGENEMIA SCREENING
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NATURAL ISOTYPIC RESPONSE AGAINST P
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Characterization of costimulatory m
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P2X7 RECEPTOR ACTIVATION IS REQUIRE
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CASPASE-1 AND NLRP3 CONTRIBUTE TO T
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circulating Treg cells expressing C
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PBMC, none of the treatments alter
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CHARACTERIZATION OF MONOCYTE SUBSET
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EFFECT OF OUABAIN IN MACROPHAGES IN
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OspC1 AND OspF: VIRULENCE FACTORS I
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Conclusion: Taken together, these r
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FIB produced higher proportion of f
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MØ phenotype M2, resulting in decr
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Financial support FAPESP, CAPES, CN
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ALTERATION IN THE DISTRIBUTION OF P
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BENEFICIAL EFFECTS OF PENTOXIFYLLIN
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MODULATION OF IMMUNE RESPONSE AND C
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FAS/FASL AND TRAIL CAUSE APOPTOSIS
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actin were more frequently detected
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NEUTROPHILS AND MACROPHAGES ARE INV
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EXPLORING THE INFLAMMATORY ROLE OF
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CERVICAL LEVELS OF INTERLEUKIN-1 BE
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Title: IDENTIFICATION BY PHAGE DISP
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PROFILE OF PRO- AND ANTI-INFLAMMATO
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IMMUNOMODULATORY MECHANISMS OF SOLU
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EVALUATION OF THE TH1, TH2 AND TH17
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production, as the blockade of PD-L
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CHARACTERIZATION OF POLYMORPHISM TN
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seems to be dependent on M. leprae
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7 with tendency to normalization on
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CHARACTERIZATION OF THE CONSERVATIO
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ASC INFLAMMASOME IS NECESSARY TO AC
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CASPASE-1 IS REQUIRED TO CONTROL OF
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The role of CD4 + T lymphocytes dur
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CRITICAL ROLE OF MYD88 EXPRESSION I
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on ROS, cathepsin B and Syk kinase
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Financial Support: FAPESP and CNPq.
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80% in symptomatic group; 45% in as
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of cells undergoing apoptosis in DT
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Financial support: FAPESP/LIM-56/HC
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identify the active components and
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EVALUATION OF HUMORAL AND CELULLAR
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Financial support: CNPq-PIBIC, FAPE
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addition, significant expression of
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THE ROLE OF K + TRANSPORTERS IN THE
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Conclusion: In this study, we estab
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Heme activates oxidative mechanisms
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ROLE OF ADENOSINE AND PROSTAGLANDIN
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Taken together, our results indicat
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Conclusion: Our findings suggest th
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Financial support: CNPq, CAPES, IOC
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number of circulating parasites in
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CRITICAL ROLE OF IL-6 IN REGULATORY
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PPAR-α AGONIST GEMFIBROZIL DECREAS
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Cutaneous Leishmaniasis in Amazonas
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CYTOTOXICITY IN IMMUNOPATHOGENESIS
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ROS production and TLR2 and 4 expre
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ROLE OF IL-4 IN THE INTESTINAL INFL
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In vitro CULTURE SYSTEM FOR Plasmod
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interactions, Tandem Affinity Purif
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in the course of human infection wi
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findings suggest that IL-17 and IL-
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23 contribute to immunological cont
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not produced during infection by C.
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Conclusion: The production of cytok
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CONCLUSION: It is likely, in this p
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expression in CCC myocardium was 64
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that mononuclear cells derived from
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Conclusion: Altogether, our data sh
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PARACOCCIDIOIDES BRASILIENSIS INHIB
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CANINE VISCERAL LEISHMANIASIS AND S
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IMMUNOMODULATORY EFFECTS OF BIOTHER
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Leishmania EFFECT ON HEME CYTOTOXIC
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ROLE OF STRONGYLOIDES VENEZUELENSIS
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TREATMENT WITH Harpagophytum procum
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