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Pesce B, Soto L, Sabugo F, Wurmann P, Cuchacovich M, López MN, Sotelo PH, Molina MC, Aguillón JC, Catalán D. Effect of interleukin-6 receptor blockade on the balance between regulatory T cells and T helper type 17 cells in rheumatoid arthritis patients. Clin Exp Immunol 2013; 171:237-42. [PMID: 23379428 DOI: 10.1111/cei.12017] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/16/2012] [Indexed: 12/11/2022] Open
Abstract
A new paradigm has emerged relating the pathogenesis of rheumatoid arthritis (RA), focused on the balance between T helper type 17 cells and regulatory T cells (T(regs) ). In humans, both subpopulations depend on transforming growth factor (TGF)-β for their induction, but in the presence of inflammatory cytokines, such as interleukin (IL)-6, the generation of Th17 is favoured. Tocilizumab is a therapeutic antibody targeting the IL-6 receptor (IL-6R), which has demonstrated encouraging results in RA. The aim of this study was to evaluate the effect of tocilizumab on Th1 cells, Th17 cells, IL-17 and interferon (IFN)-γ double secretors Th17/Th1 cells, and T(regs) in RA patients. Eight RA patients received tocilizumab monthly for 24 weeks and blood samples were obtained every 8 weeks to study T cell populations by flow cytometry. The frequency of Th17 cells, Th1 cells and Th17/Th1 cells was evaluated in peripheral blood mononuclear cells (PBMCs) activated in vitro with a polyclonal stimulus. T(regs) were identified by their expression of forkhead box protein 3 (FoxP3) and CD25 by direct staining of PBMCs. Although no changes were detected in the frequency of Th1 or Th17 cells, the percentages of peripheral T(regs) increased after therapy. In addition, the infrequent Th17/Th1 subpopulation showed a significant increment in tocilizumab-treated patients. In conclusion, tocilizumab was able to skew the balance between Th17 cells and T(regs) towards a more protective status, which may contribute to the clinical improvement observed in RA patients.
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Affiliation(s)
- B Pesce
- Programa Disciplinario de Inmunología, Instituto de Ciencias Biomédicas, Universidad de Chile/Millennium Institute on Immunology and Immunotherapy-Chile, Santiago, Chile
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Falcon-Beas C, Tempio F, Pesce B, Aguillon J, Pereda C, Saffie C, Salazar-Onfray F, Lopez M. 1107 In Vitro Generated Human Dendritic Cells Exposed to a Potent Maturation Melanoma Cell Lines Lysate Show a Tolerogenic-like Phenotype and Functionality When Exposed to Dexamethasone Prior to the Maturation Stimuli. Eur J Cancer 2012. [DOI: 10.1016/s0959-8049(12)71710-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Cuchacovich M, Catalan D, Wainstein E, Gatica H, Soto L, Aravena O, Pesce B, Sabugo F, Aguillón JC. Basal anti-cyclic citrullinated peptide (anti-CCP) antibody levels and a decrease in anti-CCP titres are associated with clinical response to adalimumab in rheumatoid arthritis. Clin Exp Rheumatol 2008; 26:1067-1073. [PMID: 19210871] [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: 05/27/2023]
Abstract
OBJECTIVE To investigate the effect of adalimumab treatment on anti-cyclic citrullinated peptide antibodies (anti-CCP) in patients with rheumatoid arthritis (RA). METHODS 70 RA patients who failed treatment with disease modifying antirheumatic drugs (DMARDs) received 40 mg adalimumab subcutaneously every other week during 24 weeks. Serum samples were collected at baseline and at weeks 8, 16 and 24 before the corresponding adalimumab dose. The serum anti-CCP levels were tested by enzyme linked immunosorbent assay. RESULTS At baseline, 52 of the 70 patients (74.3%) were positive for anti-CCP antibodies. 60 % of the anti CCP positive patients and 44.4% of the anti CCP negative patients were ACR 20 responders at week 24 (p<0.049). The serum levels of anti-CCP antibodies decreased significantly after 24 weeks of adalimumab treatment only in those patients who met ACR 20 response criteria at week 24 (p<0.00044). Differences between baseline anti-CCP titers and those at 8, 16 and 24 weeks were all statistically significant (p<0.014, 0.003 and 0.019 respectively). No statistically significant changes in the anti-CCP levels were observed in patients who did not meet the ACR 20 response criteria. CONCLUSION Basal anti-CCP antibodies levels correlate with clinical response to adalimumab. A decrease in anti-CCP levels on time was observed in patients showing also clinical improvement, suggesting that serum anti-CCP antibodies determination may be useful in assessing treatment efficacy in RA patients.
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Affiliation(s)
- M Cuchacovich
- Rheumatology Section, Department of Medicine, Clinical Hospital, University of Chile.
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Salazar L, Aravena O, Abello P, Escobar A, Contreras-Levicoy J, Rojas-Colonelli N, Catalán D, Aguirre A, Zúñiga R, Pesce B, González C, Cepeda R, Cuchacovich M, Molina MC, Salazar-Onfray F, Delgado M, Toes RE, Aguillón JC. Modulation of established murine collagen-induced arthritis by a single inoculation of short-term lipopolysaccharide-stimulated dendritic cells. Ann Rheum Dis 2007; 67:1235-41. [PMID: 18056756 DOI: 10.1136/ard.2007.072199] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BACKGROUND The use of regulatory or immature dendritic cells (DCs) as tools for modulating experimental rheumatoid arthritis is very recent. Tumour necrosis factor (TNF)-stimulated DCs have been shown to restore tolerance in experimental autoimmune encephalomyelitis and collagen-induced arthritis (CIA). OBJECTIVE We investigated the capacity of short-term lipopolysaccharide (LPS)-stimulated DCs pulsed with type II collagen (CII) to induce tolerance against established CIA. METHODS Bone marrow-derived DCs were generated in the presence of granulocyte monocyte colony-stimulating factor (GM-CSF). After CIA induction, mice were injected at day 35 with a single dose of 4- or 24-h LPS-stimulated DCs that had been loaded with CII (4hLPS/CII/DCs or 24hLPS/CII/DCs). Arthritis progression was monitored by clinical and histological evaluations. RESULTS Flow cytometry of 4hLPS/CII/DCs showed intermediate CD40 and CD86 expression, lower than that of 24hLPS/CII/DCs (fully mature) and higher than that of CII/DCs (immature). A functional assay showed that 4hLPS/CII/DCs display increased endocytosis ability with respect to 24hLPS/CII/DCs, indicating a semimature state. The single inoculation of 4hLPS/CII/DCs in mice with established CIA reduced disease severity significantly over time. Histological evaluation of mice treated with 4hLPS/CII/DCs revealed diminished inflammatory synovitis, cartilage damage and fibrosis. Co-cultures of DCs with splenocytes from CIA mice showed that collagen-specific interferon (IFN)gamma production was dramatically inhibited by 4hLPS/CII/DCs. 4hLPS/CII/DCs were high IL10 producers, which could explain the inhibition of arthritis progression in mice receiving this treatment because neither antibodies nor regulatory CD4+CD25+Foxp3+ T lymphocytes were demonstrated to be involved. CONCLUSION Short-term LPS-modulated DCs inoculation interferes with CIA progression when loaded with CII.
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Affiliation(s)
- L Salazar
- Programa Disciplinario de Inmunología, Instituto de Ciencias Biomédicas (ICBM), Facultad de Medicina, Universidad de Chile, Santiago, Chile
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Ciatto S, Houssami N, Apruzzese A, Bassetti E, Brancato B, Carozzi F, Catarzi S, Lamberini MP, Marcelli G, Pellizzoni R, Pesce B, Risso G, Russo F, Scorsolini A. Reader variability in reporting breast imaging according to BI-RADS® assessment categories (the Florence experience). Breast 2006; 15:44-51. [PMID: 16076556 DOI: 10.1016/j.breast.2005.04.019] [Citation(s) in RCA: 38] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2004] [Revised: 02/16/2005] [Accepted: 04/14/2005] [Indexed: 10/25/2022] Open
Abstract
The inter- and intraobserver agreement (K statistic) in reporting according to BI-RADS assessment categories was tested on 12 dedicated breast radiologists, with little prior working knowledge of BI-RADS, reading a set of 50 lesions (29 malignant, 21 benign). Intraobserver agreement (four categories: R2, R3, R4, R5) was fair (0.21-0.40), moderate (0.41-0.60), substantial (0.61-0.80) or almost perfect (>0.80) for one, two, five or four radiologists, or (six categories: R2, R3, R4a, R4b, R4c, R5) fair, moderate, substantial or almost perfect for three, three, three or three radiologists, respectively. Interobserver agreement (four categories) was fair, moderate or substantial for three, six, or three radiologists, or (six categories) slight, fair or moderate for one, six, or five radiologists. Major disagreement occurred for intermediate categories (R3=0.12, R4=0.25, R4a=0.08, R4b=0.07, R4c=0.10). We found insufficient intra- and interobserver consistency of breast radiologists in reporting BI-RADS assessment categories. Although training may improve these results, simpler alternative reporting methods (systems), focused on clinical decision-making, should be explored.
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Affiliation(s)
- S Ciatto
- Centro per lo Studio e la Prevenzione Oncologica, Florence, Italy.
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Ciatto S, Houssami N, Apruzzese A, Bassetti E, Brancato B, Carozzi F, Catarzi S, Lamberini MP, Marcelli G, Pellizzoni R, Pesce B, Risso G, Russo F, Scorsolini A. Categorizing breast mammographic density: intra- and interobserver reproducibility of BI-RADS density categories. Breast 2005; 14:269-75. [PMID: 16085233 DOI: 10.1016/j.breast.2004.12.004] [Citation(s) in RCA: 192] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2004] [Revised: 11/01/2004] [Accepted: 12/07/2004] [Indexed: 11/21/2022] Open
Abstract
The inter- and intraobserver agreement (kappa-statistic) in reporting according to Breast Imaging Reporting and Data System (BI-RADS((R))) breast density categories was tested in 12 dedicated breast radiologists reading a digitized set of 100 two-view mammograms. Average intraobserver agreement was substantial (kappa=0.71, range 0.32-0.88) on a four-grade scale (D1/D2/D3/D4) and almost perfect (kappa=0.81, range 0.62-1.00) on a two-grade scale (D1-2/D3-4). Average interobserver agreement was moderate (kappa=0.54, range 0.02-0.77) on a four-grade scale and substantial (kappa=0.71, range 0.31-0.88) on a two-grade scale. Major disagreement was found for intermediate categories (D2=0.25, D3=0.28). Categorization of breast density according to BI-RADS is feasible and consistency is good within readers and reasonable between readers. Interobserver inconsistency does occur, and checking the adoption of proper criteria through a proficiency test and appropriate training might be useful. As inconsistency is probably due to erroneous perception of classification criteria, standard sets of reference images should be made available for training.
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Affiliation(s)
- S Ciatto
- Centro per lo Studio e la Prevenzione Oncologica, Viale A. Volta 171, I-50131 Firenze, Italy; Screening and Test Evaluation Programme, School of Public Health, University of Sydney, Australia.
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Di Maggio C, Del Favero C, Frigerio A, Giuseppetti GM, Gozzi G, Lattanzio E, Pesce B, Rosselli Del Turco M, Simonetti G, Nosenzo MA. ["Breast charter 2004". Diagnostic approach to breast pathology]. Radiol Med 2004; 108:569-87. [PMID: 15723003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/01/2023]
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8
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Sancandi M, Griseri P, Pesce B, Patrone G, Puppo F, Lerone M, Martucciello G, Romeo G, Ravazzolo R, Devoto M, Ceccherini I. Single nucleotide polymorphic alleles in the 5' region of the RET proto-oncogene define a risk haplotype in Hirschsprung's disease. J Med Genet 2003; 40:714-8. [PMID: 12960220 PMCID: PMC1735579 DOI: 10.1136/jmg.40.9.714] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Abstract
The PTEN gene encodes a dual-specificity phosphatase mutated in a variety of human cancers. PTEN germline mutations are found in three related human autosomal dominant disorders, Cowden disease (CD), Lhermitte-Duclos disease (LDD) and Bannayan-Zonana syndrome (BZS), characterized by tumour susceptibility and developmental defects. To examine the role of PTEN in ontogenesis and tumour suppression, we disrupted mouse Pten by homologous recombination. Pten inactivation resulted in early embryonic lethality. Pten-/- ES cells formed aberrant embryoid bodies and displayed an altered ability to differentiate into endodermal, ectodermal and mesodermal derivatives. Pten+/- mice and chimaeric mice derived from Pten+/- ES cells showed hyperplastic-dysplastic changes in the prostate, skin and colon, which are characteristic of CD, LDD and BZS. They also spontaneously developed germ cell, gonadostromal, thyroid and colon tumours. In addition, Pten inactivation enhanced the ability of ES cells to generate tumours in nude and syngeneic mice, due to increased anchorage-independent growth and aberrant differentiation. These results support the notion that PTEN haploinsufficiency plays a causal role in CD, LDD and BZS pathogenesis, and demonstrate that Pten is a tumour suppressor essential for embryonic development.
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Affiliation(s)
- A Di Cristofano
- Department of Human Genetics, Memorial Sloan-Kettering Cancer Center, Sloan-Kettering Institute, New York, NY 10021, USA
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10
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Levi G, Topilko P, Schneider-Maunoury S, Lasagna M, Mantero S, Pesce B, Ghersi G, Cancedda R, Charnay P. Role of Krox-20 in endochondral bone formation. Ann N Y Acad Sci 1996; 785:288-91. [PMID: 8702157 DOI: 10.1111/j.1749-6632.1996.tb56286.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- G Levi
- Unité 368 de l' Institut National de la Santé et de la Recherche Médicale Ecole Normale Supérieure Paris, France
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Simonetti G, Pesce B, Urigo F, Meloni GB, Tomiselli A. Intra-arterial digital subtraction angiography. Radiol Med 1986; 72:67-9. [PMID: 3523645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Simonetti G, Pesce B, Rovasio SS, Manca F, Canalis GC. Method for angio-CT. Radiol Med 1986; 72:64-6. [PMID: 3726200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Simonetti G, Tomiselli A, Urigo F, Rovasio SS, Meloni GB, Canalis GC, Migaleddu V, Manca F, Pesce B, Pigliucci GM. [Value of splenic embolization in patients with hypersplenism]. Radiol Med 1985; 71:232-6. [PMID: 4048559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The authors describe the importance of embolization of the splenic artery by means of Gianturco coils in splenomegalic portal hypertension. They propose their first experience of six cases and the good results on the basis of clinical parameters, of bleeding of esophageal varices, of hematological values. They also show the influence of this method on hemodynamic, metabolic, and respiratory parameters, altered in cirrhotic patients.
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Simonetti G, Passariello R, Rossi P, Pesce B, Tomiselli A, Canalis GC, Santori FS, Castelli V, Coen G, Granieri A. Digital angiography in evaluation of orthopedic tumors. Cardiovasc Intervent Radiol 1985; 8:83-8. [PMID: 3910251 DOI: 10.1007/bf02552865] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Preoperative evaluation of orthopedic tumors using digital subtraction angiography (DSA) proved useful to ascertain the nature of the lesion, its extension to soft tissues and joints, and the presence of arteriovenous (AV) shunts. We report that overall accuracy varied from 89% to 92%, depending on the feature evaluated. The importance of angiographic examination of this entity is discussed as well as the advantages of DSA over conventional angiography.
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Abstract
Sixty patients underwent intraarterial DSA with injection into the celiac artery for evaluation of various hepatic, pancreatic, and splenic lesions. Twenty of these patients also underwent conventional arteriography for comparison. Excellent images during the early arterial phase (free of bone superimposition and artifacts) were obtained with DSA. The late arterial and parenchymal phases of the examination were less definitive when compared with conventional angiography. The venous phases of the liver studies were good and compared favorably in contrast and resolution to conventional methods. In the late venous phase, good images of the portal system were obtained using a small amount of contrast medium. Respiratory movements and artifacts were overcome with postprocessing. Most of the studies were performed using the 12-inch mode of the image intensifier, which represents the best choice between the size of the field examined and the spatial resolution of the system. We believe that DSA is a suitable substitute for conventional angiography in most patients in whom celiac trunk angiography would be used.
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Simonetti G, Passariello R, Rovasio SS, Pesce B, Canalis GC, Tomiselli A, Urigo F, Miano L. [Angio-CT in the staging of renal carcinoma]. Radiol Med 1984; 70:507-11. [PMID: 6535168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
The authors report the results about the staging of renal carcinoma using "angio-CT". The diagnostic accuracy, the sensibility, the specificity, in 42 patients, have been evaluated and compared with the subsequent operative or authoptic diagnosis. The meaning of this study is the comparison of the results obtained by this method in front of other examinations, especially artheriography.
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Simonetti G, Rossi P, Passariello R, Caboni M, Castrucci M, Pesce B. PTA in peripheral arteries. Ann Radiol (Paris) 1984; 27:55-64. [PMID: 6240220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Passariello R, Pavone P, Simonetti G, Rossi P, Pesce B, Tempesta P, Zarola L. Radiation exposure of the patient in conventional and digital intravenous angiography. Ann Radiol (Paris) 1983; 26:548-50. [PMID: 6364933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Passariello R, Simonetti G, Rossi P, Pavone P, Castrucci M, Pesce B, Tempesta P. Angiographic characterization of aortic aneurysms by digital intravenous angiography. Ann Radiol (Paris) 1983; 26:599-600. [PMID: 6364942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Simonetti G, Rossi P, Passariello R, Caboni M, Castrucci M, Pesce B. Percutaneous transluminal renal angioplasty in nephrovascular hypertension. Ann Radiol (Paris) 1983; 26:483-91. [PMID: 6228184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Simonetti G, Rossi P, Passariello R, Pesce B, Rovasio SS, Urigo F, Canalis GC, Tomiselli A. [Angioplasty of the renal arteries. Our experience with a 12-month follow-up]. Radiol Med 1983; 69:625-31. [PMID: 6231661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
We have treated 56 stenoses of renal arteries in 50 patients in which a renin assay indicated renovascular hypertension. In this paper we refer only to 40 cases of renal arteries angioplasty in 37 patients (3 cases of bilateral stenoses) with a clinical follow-up of 12 months. 25 lesions were of arteriosclerotic nature, while 15 were due to fibromuscular displasia. Results demonstrated that angioplasty resolved hypertensive conditions (either with or without medical therapy) in 82% of the cases of arteriosclerotic lesions and in 86% of the stenoses due to fibromuscular displasia. Although extremely rare, the complications that may occur with this procedure are very serious (arterial rupture, acute thrombosis, peripheral embolization). Out of utmost importance is a close collaboration with a vascular surgeon. Without doubt angioplasty will bring about radical changes in the preparation of therapeutical protocol and in some selected cases to improve renal function.
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Passariello R, Rossi P, Simonetti G, Castrucci A, Pavone P, Tempesta P, Castrucci M, Pesce B, Ambrogi C, Sposato S. [Current status and prospectives of digital angiography]. Recenti Prog Med 1983; 74:259-74. [PMID: 6351197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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