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Castagnetti F, Gugliotta G, Baccarani M, Breccia M, Specchia G, Levato L, Abruzzese E, Rossi G, Iurlo A, Martino B, Pregno P, Stagno F, Cuneo A, Bonifacio M, Gobbi M, Russo D, Gozzini A, Tiribelli M, de Vivo A, Alimena G, Cavo M, Martinelli G, Pane F, Saglio G, Rosti G. Differences among young adults, adults and elderly chronic myeloid leukemia patients. Ann Oncol 2015; 26:185-192. [PMID: 25361995 DOI: 10.1093/annonc/mdu490] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/08/2023] Open
Abstract
BACKGROUND The incidence of chronic myeloid leukemia (CML) increases with age, but it is unclear how the characteristics of the disease vary with age. In children, where CML is very rare, it presents with more aggressive features, including huge splenomegaly, higher cell count and higher blast cell percentage. PATIENTS AND METHODS To investigate if after childhood the disease maintains or loses these characteristics of aggressiveness, we analyzed 2784 adult patients, at least 18 years old, registered by GIMEMA CML WP over a 40-year period. RESULTS Young adults (YAs: 18-29 years old) significantly differed from adults (30-59 years old) and elderly patients (at least 60 years old) particularly for the frequency of splenomegaly (71%, 63% and 55%, P < 0.001), and the greater spleen size (median value: 4.5, 3.0 and 1.0 cm, P < 0.001). According to the EUTOS score, that is age-independent, high-risk patients were more frequent among YAs, than among adult and elderly patients (18%, 9% and 6%, P < 0.001). In tyrosine kinase inhibitors-treated patients, the rates of complete cytogenetic and major molecular response were lower in YAs, and the probability of transformation was higher (16%, 5% and 7%, P = 0.011). CONCLUSIONS The characteristics of CML or the host response to leukemia differ with age. The knowledge of these differences and of their causes may help to refine the treatment and to improve the outcome. CLINICAL TRIAL NUMBERS NCT00510926, NCT00514488, NCT00769327, NCT00481052.
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Paparella D, Guida P, Bisceglia L, Caparrotti S, Carbone C, Cassese M, Contini M, de Luca Tupputi Schinosa L, De Pasquale C, Di Eusanio G, Fanelli V, Gregorini R, Martinelli G, Mazzei V, Rocco D, Speziale G, Visicchio G, Zaccaria S, Fiore T, Bux F. Development and results of Puglia adult cardiac surgery registry. J Cardiovasc Med (Hagerstown) 2014; 15:810-6. [DOI: 10.2459/jcm.0000000000000115] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Salizzoni S, D'Onofrio A, Agrifoglio M, Colombo A, Chieffo A, Tarantini G, Regesta T, Martinelli G, Gabbieri D, Saia F, Tamburino C, Ribichini FL, Cugola D, Aiello ML, Boi A, Iadanza A, Pompei E, Stefano P, Ornaghi D, Minati A, Agostinelli A, Boschetti C, Andrea A, Casilli F, Bedogni F, Rinaldi M. TCT-709 Early and Mid-term Outcomes Of 1904 Patients Undergoing Transcatheter Balloon-Expandable Valve Implantation: results the ITER Registry. J Am Coll Cardiol 2014. [DOI: 10.1016/j.jacc.2014.07.781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Scrascia G, Guida P, Caparrotti SM, Capone G, Contini M, Cassese M, Fanelli V, Martinelli G, Mazzei V, Zaccaria S, Paparella D. Incremental Value of Anemia in Cardiac Surgical Risk Prediction With the European System for Cardiac Operative Risk Evaluation (EuroSCORE) II Model. Ann Thorac Surg 2014; 98:869-75. [DOI: 10.1016/j.athoracsur.2014.04.124] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2013] [Revised: 04/19/2014] [Accepted: 04/28/2014] [Indexed: 01/20/2023]
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White H, Deprez L, Corbisier P, Hall V, Lin F, Mazoua S, Trapmann S, Aggerholm A, Andrikovics H, Akiki S, Barbany G, Boeckx N, Bench A, Catherwood M, Cayuela JM, Chudleigh S, Clench T, Colomer D, Daraio F, Dulucq S, Farrugia J, Fletcher L, Foroni L, Ganderton R, Gerrard G, Gineikienė E, Hayette S, El Housni H, Izzo B, Jansson M, Johnels P, Jurcek T, Kairisto V, Kizilors A, Kim DW, Lange T, Lion T, Polakova KM, Martinelli G, McCarron S, Merle PA, Milner B, Mitterbauer-Hohendanner G, Nagar M, Nickless G, Nomdedéu J, Nymoen DA, Leibundgut EO, Ozbek U, Pajič T, Pfeifer H, Preudhomme C, Raudsepp K, Romeo G, Sacha T, Talmaci R, Touloumenidou T, Van der Velden VHJ, Waits P, Wang L, Wilkinson E, Wilson G, Wren D, Zadro R, Ziermann J, Zoi K, Müller MC, Hochhaus A, Schimmel H, Cross NCP, Emons H. A certified plasmid reference material for the standardisation of BCR-ABL1 mRNA quantification by real-time quantitative PCR. Leukemia 2014; 29:369-76. [PMID: 25036192 PMCID: PMC4320294 DOI: 10.1038/leu.2014.217] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Revised: 05/21/2014] [Accepted: 06/25/2014] [Indexed: 11/14/2022]
Abstract
Serial quantification of BCR–ABL1 mRNA is an important therapeutic indicator in chronic myeloid leukaemia, but there is a substantial variation in results reported by different laboratories. To improve comparability, an internationally accepted plasmid certified reference material (CRM) was developed according to ISO Guide 34:2009. Fragments of BCR–ABL1 (e14a2 mRNA fusion), BCR and GUSB transcripts were amplified and cloned into pUC18 to yield plasmid pIRMM0099. Six different linearised plasmid solutions were produced with the following copy number concentrations, assigned by digital PCR, and expanded uncertainties: 1.08±0.13 × 106, 1.08±0.11 × 105, 1.03±0.10 × 104, 1.02±0.09 × 103, 1.04±0.10 × 102 and 10.0±1.5 copies/μl. The certification of the material for the number of specific DNA fragments per plasmid, copy number concentration of the plasmid solutions and the assessment of inter-unit heterogeneity and stability were performed according to ISO Guide 35:2006. Two suitability studies performed by 63 BCR–ABL1 testing laboratories demonstrated that this set of 6 plasmid CRMs can help to standardise a number of measured transcripts of e14a2 BCR–ABL1 and three control genes (ABL1, BCR and GUSB). The set of six plasmid CRMs is distributed worldwide by the Institute for Reference Materials and Measurements (Belgium) and its authorised distributors (https://ec.europa.eu/jrc/en/reference-materials/catalogue/; CRM code ERM-AD623a-f).
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Farronato G, Cannalire P, Martinelli G, Tubertini I, Giannini L, Galbiati G, Maspero C. Cleft lip and/or palate: review. MINERVA STOMATOLOGICA 2014; 63:111-126. [PMID: 24705041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
AIM Aim of the review was to provide a literature overview of the birth defects of cleft lip and/or cleft palate (CL/P). METHODS Through the use of the PubMed database items were collected that would provide information about the condition, leading to the discussion of the following topics: epidemiology, anatomical features, genetics, environmental factors, diagnosis and treatment. RESULTS According to these data, the CL/P are the most common congenital malformations of the craniofacial region. There are different phenotypes and clinical features of this malformation, which differ according to the anatomical structures involved: cleft lip, cleft lip and cleft palate. The etiology is multifactorial and includes both genetic factors and environmental factors. For proper diagnosis and treatment it is important to complete a multidisciplinary approach to guide the patient from birth to the end of growth. Among the outstanding figures for the care of the anomaly are: the gynecologist, the pediatrician, the maxillofacial surgeon and orthodontist. Individuals with a cleft lip and/or cleft palate may experience problems in feeding, pronunciation, hearing and social integration, which can be corrected to a different extent by surgery, dental treatment, speech therapy and psychosocial interventions. CONCLUSION Today the optimal treatment is difficult to find, because of the large variability of malformations and the subjective response of each patient to therapy.
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Riva L, Ronchini C, Bodini M, Lo-Coco F, Lavorgna S, Ottone T, Martinelli G, Iacobucci I, Tarella C, Cignetti A, Volorio S, Bernard L, Russo A, Melloni GEM, Luzi L, Alcalay M, Dellino GI, Pelicci PG. Acute promyelocytic leukemias share cooperative mutations with other myeloid-leukemia subgroups. Blood Cancer J 2014; 4:e195. [PMID: 24658373 PMCID: PMC3972704 DOI: 10.1038/bcj.2014.19] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Gopal S, Do T, Pooni JS, Martinelli G. Validation of cardiac output studies from the Mostcare compared to a pulmonary artery catheter in septic patients. Minerva Anestesiol 2014; 80:314-323. [PMID: 24398442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
BACKGROUND The Mostcare monitor is a non-invasive cardiac output monitor. It has been well validated in cardiac surgical patients but there is limited evidence on its use in patients with severe sepsis and septic shock. METHODS The study included the first 22 consecutive patients with severe sepsis and septic shock in whom the floatation of a pulmonary artery catheter was deemed necessary to guide clinical management. Cardiac output measurements including cardiac output, cardiac index and stroke volume were simultaneously calculated and recorded from a thermodilution pulmonary artery catheter and from the Mostcare monitor respectively. The two methods of measuring cardiac output were compared by Bland-Altman statistics and linear regression analysis. A percentage error of less than 30% was defined as acceptable for this study. RESULTS Bland-Altman analysis for cardiac output showed a Bias of 0.31 L.min-1, precision (=SD) of 1.97 L.min-1 and a percentage error of 62.54%. For Cardiac Index the bias was 0.21 L.min-1.m-2, precision of 1.10 L.min-1.m-2 and a percentage error of 64%. For stroke volume the bias was 5 mL, precision of 24.46 mL and percentage error of 70.21%. Linear regression produced a correlation coefficient r2 for cardiac output, cardiac index, and stroke volume, of 0.403, 0.306, and 0.3 respectively. CONCLUSION Compared to thermodilution cardiac output, cardiac output studies obtained from the Mostcare monitor have an unacceptably high error rate. The Mostcare monitor demonstrated to be an unreliable monitoring device to measure cardiac output in patients with severe sepsis and septic shock on an intensive care unit.
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Govi S, Christie D, Messina C, Bruno Ventre M, Gracia Medina E, Porter D, Radford J, Seog Heo D, Park Y, Martinelli G, Taylor E, Lucraft H, Ballova V, Zucca E, Gospodarowicz M, Ferreri A. The clinical features, management and prognostic effects of pathological fractures in a multicenter series of 373 patients with diffuse large B-cell lymphoma of the bone. Ann Oncol 2014; 25:176-81. [DOI: 10.1093/annonc/mdt482] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
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Martins E, Martinelli G, Arbetman M, Lamont R, Simões-Araújo J, Powell D, Ciampi-Guillardi M, Baldauf C, Quinet A, Galisa P, Shapcott A. Development and characterization of microsatellite loci for Ocotea species (Lauraceae) threatened with extinction. GENETICS AND MOLECULAR RESEARCH 2014; 13:5138-42. [DOI: 10.4238/2014.july.7.6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Gopal S, Pooni J, Do T, Karimi A, Martinelli G. Validation of cardiac output from Mostcare compared with a pulmonary artery catheter in septic patients. Crit Care 2014. [PMCID: PMC4068186 DOI: 10.1186/cc13330] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Farronato G, Giannini L, Galbiati G, Cannalire P, Martinelli G, Tubertini I, Maspero C. Oral tissues and orthodontic treatment: common side effects. MINERVA STOMATOLOGICA 2013; 62:431-446. [PMID: 24270203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The aim of this paper was to provide a literature review about the problems that can occur during orthodontic treatment. Using the PubMed database we collected items that would provide information regarding the direct consequences of the placement of an orthodontic appliance: coming to the discussion of the following topics: candida infections, the effects on the soft tissues, the effects on periodontal tissues and effects on hard tissues. The presence of appliances in the oral cavity increases the prevalence of people with candida, specifically the species Candida Albicans is the most frequently isolated. The balance between the clearance of the microorganism, the colonization and the state of candidiasis depends both on the virulence of the fungus, and the competence of the host immune system. On soft tissues, cases of ulceration of the upper jaw by a rapid palatal expander and pyogenic granuloma due to quad helix appliance have been reported. The second one is mostly observed on vestibular gingiva. The first one was found, however, in patients suffering from diabetes mellitus type 1 because of the tissue modifications induced by this pathological condition. The more severe periodontic effects are those caused by incorrect use of orthodontic elastic separators. Finally, the White Spot Lesions are the direct consequences of a wrong conditioning of enamel when attaching the bracket. They represent a first stage of caries in the positioning area of the bracket. The orthodontist is required to intercept these issues not to affect the success of the treatment.
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Riva L, Ronchini C, Bodini M, Lo-Coco F, Lavorgna S, Ottone T, Martinelli G, Iacobucci I, Tarella C, Cignetti A, Volorio S, Bernard L, Russo A, Melloni GEM, Luzi L, Alcalay M, Dellino GI, Pelicci PG. Acute promyelocytic leukemias share cooperative mutations with other myeloid-leukemia subgroups. Blood Cancer J 2013; 3:e147. [PMID: 24036946 PMCID: PMC3789210 DOI: 10.1038/bcj.2013.46] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Gardellini A, Gigli F, Babic A, Andreola G, Radice D, Sammassimo S, Martinelli G, Laszlo D. Filgrastim XM02 (Tevagrastim®) after autologous stem cell transplantation compared to lenograstim: favourable cost-efficacy analysis. Ecancermedicalscience 2013; 7:327. [PMID: 23818939 PMCID: PMC3694838 DOI: 10.3332/ecancer.2013.327] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2013] [Indexed: 11/16/2022] Open
Abstract
PURPOSE Granulocyte colony-stimulating factors (G-CSFs), filgrastim and lenograstim, are recognised to be useful in accelerating engraftment after autologous stem cell transplantation. Several forms of biosimilar non-glycosylated G-CSF have been approved by the European Medicines Agency, with limited published data supporting the clinical equivalence in peripheral blood stem cell mobilisation and recovery after autologous stem cell transplantation. METHOD With the aim of comparing cost-effective strategies in the use of G-CSF after autologous stem cell transplantation, we retrospectively evaluated 32 patients consecutively treated with biosimilar filgrastim XM02 (Tevagrastim) and 26 with lenograstim. All patients received G-CSF (biosimilar or lenograstim) at a dosage of 5 mcg/kg/day subcutaneously from day 5 to absolute neutrophil count of 1500/mmc for three days. RESULTS The median time to absolute neutrophil count engraftment was 11 days for the filgrastim XM02 group and 12 days for the lenograstim group. As for platelets recovery, the median time was 12 days in both groups. The median number of G-CSF vials used for patients was 9.5 for Tevagrastim and 10.5 for lenograstim, reflecting a mean estimated cost of about 556.1 euros for Tevagrastim versus 932.2 euros for lenograstim (p< 0.001). The median days of febrile neutropenia were 1.5 and 1 for filgrastim XM02 and lenograstim, respectively. No adverse event related to the use of XM02 filgrastim was recorded. CONCLUSION In our experience, filgrastim XM02 and lenograstim showed comparable efficacy in shortening the period of neutropenia after cytoreduction and autologous stem cell transplantation, with a favourable cost effect for filgrastim XM02.
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Finelli C, Clissa C, Voso M, Spiriti MA, Breccia M, Gaidano G, Crugnola M, Giannini M, Poloni A, Bosi C, Naso V, Follo M, Martinelli G, Cavo M. P-296 Long-lasting hematologic response to azacitidine in myelodysplastic syndromes: Multicenter retrospective study of 36 patients. Leuk Res 2013. [DOI: 10.1016/s0145-2126(13)70343-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Follo M, Mongiorgi S, Clissa C, Stoyanova M, Paolini S, Quaranta M, Martinelli G, Manzoli L, Cocco C, Finelli C. P-012 Clonal activation of Akt in low-risk MDS patients with del(5q) treated with lenalidomide. Leuk Res 2013. [DOI: 10.1016/s0145-2126(13)70061-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Jabbour E, le Coutre PD, Cortes J, Giles F, Bhalla KN, Pinilla-Ibarz J, Larson RA, Gattermann N, Ottmann OG, Hochhaus A, Hughes TP, Saglio G, Radich JP, Kim DW, Martinelli G, Reynolds J, Woodman RC, Baccarani M, Kantarjian HM. Prediction of outcomes in patients with Ph+ chronic myeloid leukemia in chronic phase treated with nilotinib after imatinib resistance/intolerance. Leukemia 2012; 27:907-13. [PMID: 23174881 DOI: 10.1038/leu.2012.305] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The purpose was to assess predictive factors for outcome in patients with chronic myeloid leukemia (CML) in chronic phase (CML-CP) treated with nilotinib after imatinib failure. Imatinib-resistant and -intolerant patients with CML-CP (n=321) were treated with nilotinib 400 mg twice daily. Of 19 baseline patient and disease characteristics and two response end points analyzed, 10 independent prognostic factors were associated with progression-free survival (PFS). In the multivariate analysis, major cytogenetic response (MCyR) within 12 months, baseline hemoglobin ≥ 120 g/l, baseline basophils <4%, and absence of baseline mutations with low sensitivity to nilotinib were associated with PFS. A prognostic score was created to stratify patients into five groups (best group: 0 of 3 unfavorable risk factors and MCyR by 12 months; worst group: 3 of 3 unfavorable risk factors and no MCyR by 12 months). Estimated 24-month PFS rates were 90%, 79%, 67% and 37% for patients with prognostic scores of 0, 1, 2 and 3, respectively, (no patients with score of 4). Even in the presence of poor disease characteristics, nilotinib provided significant clinical benefit in patients with imatinib-resistant or -intolerant CML. This system may yield insight on the prognosis of patients.
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Crovetti G, Martinelli G. A-HPC collection: large volume or tailored procedure. DRUGS AND CELL THERAPIES IN HEMATOLOGY 2012. [DOI: 10.4081/dcth.2012.15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Crovetti G, Martinelli G. A-HPC collection: large volume or tailored procedure. DRUGS AND CELL THERAPIES IN HEMATOLOGY 2012. [DOI: 10.4081/dcth.2012.1s.76] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Giles FJ, le Coutre PD, Pinilla-Ibarz J, Larson RA, Gattermann N, Ottmann OG, Hochhaus A, Radich JP, Saglio G, Hughes TP, Martinelli G, Kim DW, Novick S, Gillis K, Fan X, Cortes J, Baccarani M, Kantarjian HM. Nilotinib in imatinib-resistant or imatinib-intolerant patients with chronic myeloid leukemia in chronic phase: 48-month follow-up results of a phase II study. Leukemia 2012; 27:107-12. [PMID: 22763385 DOI: 10.1038/leu.2012.181] [Citation(s) in RCA: 163] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Nilotinib (Tasigna) is a BCR-ABL1 tyrosine kinase inhibitor approved for the treatment of patients with Philadelphia chromosome-positive chronic myeloid leukemia in chronic phase (CML-CP) who are newly diagnosed or intolerant of or resistant to imatinib. The 48-month follow-up data for patients with CML-CP treated with nilotinib after imatinib resistance or intolerance on an international phase II study were analyzed. Overall, 59% of patients achieved major cytogenetic response; 45% achieved complete cytogenetic response while on study. The estimated rate of overall survival (OS) and progression-free survival (PFS) at 48 months was 78% and 57%, respectively. Deeper levels of molecular responses at 3 and 6 months were highly positively correlated with long-term outcomes, including PFS and OS at 48 months. Of the 321 patients initially enrolled in the study, 98 (31%) were treated for at least 48 months. Discontinuations were primarily due to disease progression (30%) or adverse events (21%). Nilotinib is safe and effective for long-term use in responding patients with CML-CP who are intolerant of or resistant to imatinib. Further significant improvements in therapy are required for patients who are resistant or intolerant to imatinib.
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Iacobucci I, Lonetti A, Candoni A, Sazzini M, Papayannidis C, Formica S, Ottaviani E, Ferrari A, Michelutti A, Simeone E, Astolfi A, Abbenante MC, Parisi S, Cattina F, Malagola M, Russo D, Damiani D, Gherlinzoni F, Gottardi M, Baccarani M, Fanin R, Martinelli G. Profiling of drug-metabolizing enzymes/transporters in CD33+ acute myeloid leukemia patients treated with Gemtuzumab-Ozogamicin and Fludarabine, Cytarabine and Idarubicin. THE PHARMACOGENOMICS JOURNAL 2012; 13:335-41. [DOI: 10.1038/tpj.2012.13] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2012] [Revised: 04/05/2012] [Accepted: 04/11/2012] [Indexed: 11/09/2022]
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Cocorocchio E, Peccatori F, Vanazzi A, Piperno G, Calabrese L, Botteri E, Travaini L, Preda L, Martinelli G. High-dose chemotherapy in relapsed or refractory Hodgkin lymphoma patients: a reappraisal of prognostic factors. Hematol Oncol 2012; 31:34-40. [DOI: 10.1002/hon.2014] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2011] [Revised: 03/05/2012] [Accepted: 03/12/2012] [Indexed: 11/10/2022]
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Grimaldi C, Chiarini F, Tabellini G, Ricci F, Tazzari PL, Battistelli M, Falcieri E, Bortul R, Melchionda F, Iacobucci I, Pagliaro P, Martinelli G, Pession A, Barata JT, McCubrey JA, Martelli AM. AMP-dependent kinase/mammalian target of rapamycin complex 1 signaling in T-cell acute lymphoblastic leukemia: therapeutic implications. Leukemia 2011; 26:91-100. [PMID: 21968881 DOI: 10.1038/leu.2011.269] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The mammalian target of rapamycin (mTOR) serine/threonine kinase is the catalytic subunit of two multi-protein complexes, referred to as mTORC1 and mTORC2. Signaling downstream of mTORC1 has a critical role in leukemic cell biology by controlling mRNA translation of genes involved in both cell survival and proliferation. mTORC1 activity can be downmodulated by upregulating the liver kinase B1/AMP-activated protein kinase (LKB1/AMPK) pathway. Here, we have explored the therapeutic potential of the anti-diabetic drug, metformin (an LKB1/AMPK activator), against both T-cell acute lymphoblastic leukemia (T-ALL) cell lines and primary samples from T-ALL patients displaying mTORC1 activation. Metformin affected T-ALL cell viability by inducing autophagy and apoptosis. However, it was much less toxic against proliferating CD4(+) T-lymphocytes from healthy donors. Western blot analysis demonstrated dephosphorylation of mTORC1 downstream targets. Unlike rapamycin, we found a marked inhibition of mRNA translation in T-ALL cells treated with metformin. Remarkably, metformin targeted the side population of T-ALL cell lines as well as a putative leukemia-initiating cell subpopulation (CD34(+)/CD7(-)/CD4(-)) in patient samples. In conclusion, metformin displayed a remarkable anti-leukemic activity, which emphasizes future development of LKB1/AMPK activators as clinical candidates for therapy in T-ALL.
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Waldron T, De Dominici M, Soliera AR, Audia A, Iacobucci I, Lonetti A, Martinelli G, Zhang Y, Martinez R, Hyslop T, Bender TP, Calabretta B. c-Myb and its target Bmi1 are required for p190BCR/ABL leukemogenesis in mouse and human cells. Leukemia 2011; 26:644-53. [PMID: 21960247 PMCID: PMC3252490 DOI: 10.1038/leu.2011.264] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Expression of c-Myb is required for normal hematopoiesis and for proliferation of myeloid leukemia blasts and a subset of T cell leukemia but its role in B-cell leukemogenesis is unknown. We tested the role of c-Myb in p190BCR/ABL-dependent B-cell leukemia in mice transplanted with p190BCR/ABL-transduced marrow cells with a c-Myb allele (Mybf/d) and in double transgenic p190BCR/ABL/Mybw/d mice. In both models, loss of a c-Myb allele caused a less aggressive B-cell leukemia. In p190BCR/ABL expressing human B-cell leukemia lines, knockdown of c-Myb expression suppressed proliferation and colony formation. Compared to c-Mybw/f cells, expression of Bmi1, a regulator of stem cell proliferation and maintenance, was decreased in pre-B cells from Mybw/d p190BCR/ABL transgenic mice. Ectopic expression of a mutant c-Myb or Bmi1 enhanced the proliferation and colony formation of Mybw/d p190BCR/ABL B-cells; by contrast, Bmi1 downregulation inhibited colony formation of p190BCR/ABL-expressing murine B cells and human B-cell leukemia lines. Moreover, c-Myb interacted with a segment of the human Bmi1 promoter and enhanced its activity. In blasts from nineteen Ph1 adult ALL patients, levels of c-Myb and Bmi1 showed a positive correlation. Together, these findings support the existence of a c-Myb-Bmi1 transcription regulatory pathway required for p190BCR/ABL leukemogenesis.
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Kohlmann A, Klein HU, Weissmann S, Bresolin S, Chaplin T, Cuppens H, Haschke-Becher E, Garicochea B, Grossmann V, Hanczaruk B, Hebestreit K, Gabriel C, Iacobucci I, Jansen JH, te Kronnie G, van de Locht L, Martinelli G, McGowan K, Schweiger MR, Timmermann B, Vandenberghe P, Young BD, Dugas M, Haferlach T. The Interlaboratory RObustness of Next-generation sequencing (IRON) study: a deep sequencing investigation of TET2, CBL and KRAS mutations by an international consortium involving 10 laboratories. Leukemia 2011; 25:1840-8. [PMID: 21681191 DOI: 10.1038/leu.2011.155] [Citation(s) in RCA: 87] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Massively parallel pyrosequencing allows sensitive deep sequencing to detect molecular aberrations. Thus far, data are limited on the technical performance in a clinical diagnostic setting. Here, we investigated as an international consortium the robustness, precision and reproducibility of amplicon next-generation deep sequencing across 10 laboratories in eight countries. In a cohort of 18 chronic myelomonocytic leukemia patients, mutational analyses were performed on TET2, a frequently mutated gene in myeloproliferative neoplasms. Additionally, hotspot regions of CBL and KRAS were investigated. The study was executed using GS FLX sequencing instruments and the small volume 454 Life Sciences Titanium emulsion PCR setup. We report a high concordance in mutation detection across all laboratories, including a robust detection of novel variants, which were undetected by standard Sanger sequencing. The sensitivity to detect low-level variants present with as low as 1-2% frequency, compared with the 20% threshold for Sanger-based sequencing is increased. Together with the output of high-quality long reads and fast run time, we demonstrate the utility of deep sequencing in clinical applications. In conclusion, this multicenter analysis demonstrated that amplicon-based deep sequencing is technically feasible, achieves high concordance across multiple laboratories and allows a broad and in-depth molecular characterization of cancer specimens with high diagnostic sensitivity.
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