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Vallejo D, Hidalgo MA, Hernández JM. Effects of long-term exposure to an extremely low frequency magnetic field (15 µT) on selected blood coagulation variables in OF1 mice. Electromagn Biol Med 2019; 38:279-286. [PMID: 31303067 DOI: 10.1080/15368378.2019.1641719] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
The long-term exposure of OF1 mice to an extremely low frequency magnetic field (ELF-MF; 50 Hz, 15 µT [rms]) has been associated with the appearance of leukaemia. Neoplasms are usually accompanied by changes in haemostatic processes but reports on changes in blood coagulation following exposure to an ELF-MF are scarce and rather fragmentary. The aim of the present work was to determine whether any global or partial coagulation variables are modified after such long-term exposure. A parental generation of six week-old OF1 mice was exposed to an artificial ELF-MF for 14 weeks. Mating was then allowed, and the resulting filial generation raised until the age of 31-35 weeks within the same ELF-MF. Control animals were subjected only to the magnetic field of the Earth. Whole blood samples were extracted from the anesthetised filial generation of mice by cardiac puncture. White blood cells (WBC) were counted, the activated partial thromboplastin time (APTT) and prothrombin time (PT) determined, and plasma fibrinogen, reptilase time (RT), and factor VIII activity examined. The similarity between the results for the present control animals and those recorded in the literature for human blood render OF1 mice a suitable study model. The differences in the studied coagulation variables were largely owed simply to sex. However, the females showed a very significant shortening of the PT time associated with ELF-MF exposure. Exposure also caused significant increases in the female APTT and RT values, and in general reduced the differences between the sexes.
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Affiliation(s)
- D Vallejo
- Department of Biology of Systems, University of Alcalá , Alcalá de Henares , Spain
| | - M A Hidalgo
- Department of Physics and Mathematics, University of Alcalá , Alcalá de Henares , Spain
| | - J M Hernández
- Department of Biology of Systems, University of Alcalá , Alcalá de Henares , Spain
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Tanarro I, Alemán B, de Vicente P, Gallego JD, Pardo JR, Santoro G, Lauwaet K, Tercero F, Díaz-Pulido A, Moreno E, Agúndez M, Goicoechea JR, Sobrado JM, López JA, Martínez L, Doménech JL, Herrero VJ, Hernández JM, Peláez RJ, López-Pérez JA, Gómez-González J, Alonso JL, Jiménez E, Teyssier D, Makasheva K, Castellanos M, Joblin C, Martín-Gago JA, Cernicharo J. Using radio astronomical receivers for molecular spectroscopic characterization in astrochemical laboratory simulations: A proof of concept. Astron Astrophys 2018; 609:A15. [PMID: 29277841 PMCID: PMC5741178 DOI: 10.1051/0004-6361/201730969] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
We present a proof of concept on the coupling of radio astronomical receivers and spectrometers with chemical reactors and the performances of the resulting setup for spectroscopy and chemical simulations in laboratory astrophysics. Several experiments including cold plasma generation and UV photochemistry were performed in a 40 cm long gas cell placed in the beam path of the Aries 40 m radio telescope receivers operating in the 41-49 GHz frequency range interfaced with fast Fourier transform spectrometers providing 2 GHz bandwidth and 38 kHz resolution. The impedance matching of the cell windows has been studied using different materials. The choice of the material and its thickness was critical to obtain a sensitivity identical to that of standard radio astronomical observations. Spectroscopic signals arising from very low partial pressures of CH3OH, CH3CH2OH, HCOOH, OCS, CS, SO2 (<10-3 mbar) were detected in a few seconds. Fast data acquisition was achieved allowing for kinetic measurements in fragmentation experiments using electron impact or UV irradiation. Time evolution of chemical reactions involving OCS, O2 and CS2 was also observed demonstrating that reactive species, such as CS, can be maintained with high abundance in the gas phase during these experiments.
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Affiliation(s)
- I Tanarro
- IEM. CSIC. Instituto de Estructura de la Materia. Molecular Physics Department. C/Serrano 123, 28006 Madrid, Spain
| | - B Alemán
- ICMM. CSIC. Molecular Astrophysics Group. C/ Sor Juana Inés de la Cruz 3. Cantoblanco, 28049 Madrid. Spain
| | - P de Vicente
- Centro Nacional de Tecnologías Radioastronómicas y Aplicaciones Geoespaciales (CNTRAG), Observatorio de Yebes (IGN), Spain
| | - J D Gallego
- Centro Nacional de Tecnologías Radioastronómicas y Aplicaciones Geoespaciales (CNTRAG), Observatorio de Yebes (IGN), Spain
| | - J R Pardo
- ICMM. CSIC. Molecular Astrophysics Group. C/ Sor Juana Inés de la Cruz 3. Cantoblanco, 28049 Madrid. Spain
| | - G Santoro
- ICMM. CSIC. Materials Science Factory. Structure of Nanoscopic Systems Group, ESISNA. C/ Sor Juana Inés de la Cruz 3. Cantoblanco, 28049 Madrid. Spain
| | - K Lauwaet
- ICMM. CSIC. Materials Science Factory. Structure of Nanoscopic Systems Group, ESISNA. C/ Sor Juana Inés de la Cruz 3. Cantoblanco, 28049 Madrid. Spain
| | - F Tercero
- Centro Nacional de Tecnologías Radioastronómicas y Aplicaciones Geoespaciales (CNTRAG), Observatorio de Yebes (IGN), Spain
| | - A Díaz-Pulido
- Centro Nacional de Tecnologías Radioastronómicas y Aplicaciones Geoespaciales (CNTRAG), Observatorio de Yebes (IGN), Spain
| | - E Moreno
- ICMM. CSIC. Molecular Astrophysics Group. C/ Sor Juana Inés de la Cruz 3. Cantoblanco, 28049 Madrid. Spain
| | - M Agúndez
- ICMM. CSIC. Molecular Astrophysics Group. C/ Sor Juana Inés de la Cruz 3. Cantoblanco, 28049 Madrid. Spain
| | - J R Goicoechea
- ICMM. CSIC. Molecular Astrophysics Group. C/ Sor Juana Inés de la Cruz 3. Cantoblanco, 28049 Madrid. Spain
| | - J M Sobrado
- Centro de Astrobiología, (CAB-CSIC/INTA). Carretera Torrejón a Ajalvir km 4, Torrejón de Ardoz 28850 (Madrid), Spain
| | - J A López
- Centro Nacional de Tecnologías Radioastronómicas y Aplicaciones Geoespaciales (CNTRAG), Observatorio de Yebes (IGN), Spain
| | - L Martínez
- ICMM. CSIC. Materials Science Factory. Structure of Nanoscopic Systems Group, ESISNA. C/ Sor Juana Inés de la Cruz 3. Cantoblanco, 28049 Madrid. Spain
| | - J L Doménech
- IEM. CSIC. Instituto de Estructura de la Materia. Molecular Physics Department. C/Serrano 123, 28006 Madrid, Spain
| | - V J Herrero
- IEM. CSIC. Instituto de Estructura de la Materia. Molecular Physics Department. C/Serrano 123, 28006 Madrid, Spain
| | - J M Hernández
- Centro Nacional de Tecnologías Radioastronómicas y Aplicaciones Geoespaciales (CNTRAG), Observatorio de Yebes (IGN), Spain
| | - R J Peláez
- IEM. CSIC. Instituto de Estructura de la Materia. Molecular Physics Department. C/Serrano 123, 28006 Madrid, Spain
| | - J A López-Pérez
- Centro Nacional de Tecnologías Radioastronómicas y Aplicaciones Geoespaciales (CNTRAG), Observatorio de Yebes (IGN), Spain
| | - J Gómez-González
- Centro Nacional de Tecnologías Radioastronómicas y Aplicaciones Geoespaciales (CNTRAG), Observatorio de Yebes (IGN), Spain
| | - J L Alonso
- Grupo de Espectroscopía Molecular (GEM), Edificio Quifima, Área de Química-Física, Laboratorios de Espectroscopía y Bioespectroscopía, Parque Científico UVa, Unidad Asociada CSIC, Universidad de Valladolid, 47011 Valladolid, Spain
| | - E Jiménez
- Departamento de Química Física, Facultad de Ciencias y Tecnologías Químicas, Universidad de Castilla-La Mancha, Avda. Camilo José Cela 1B, E-13071, Ciudad Real, Spain
| | - D Teyssier
- European Space Astronomy Centre, ESA, PO Box 78, 28691 Villanueva de la Cañada, Madrid, Spain
| | - K Makasheva
- LAPLACE (Laboratoire Plasma et Conversion dÉnergie); Université de Toulouse; CNRS, UPS, INPT; 118 route de Narbonne, F-31062 Toulouse cedex 9, France
| | - M Castellanos
- ICMM. CSIC. Molecular Astrophysics Group. C/ Sor Juana Inés de la Cruz 3. Cantoblanco, 28049 Madrid. Spain
| | - C Joblin
- Université de Toulouse, UPS-OMS, IRAP, 31000 Toulouse, France
- CNRS, IRAP, 9 Av. Colonel Roche, BP 44346, 31028 Toulouse Cedex 4, France
| | - J A Martín-Gago
- ICMM. CSIC. Materials Science Factory. Structure of Nanoscopic Systems Group, ESISNA. C/ Sor Juana Inés de la Cruz 3. Cantoblanco, 28049 Madrid. Spain
| | - J Cernicharo
- ICMM. CSIC. Molecular Astrophysics Group. C/ Sor Juana Inés de la Cruz 3. Cantoblanco, 28049 Madrid. Spain
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González-Calle V, Dávila J, Escalante F, de Coca AG, Aguilera C, López R, Bárez A, Alonso JM, Hernández R, Hernández JM, de la Fuente P, Puig N, Ocio EM, Gutiérrez NC, García-Sanz R, Mateos MV. Bence Jones proteinuria in smoldering multiple myeloma as a predictor marker of progression to symptomatic multiple myeloma. Leukemia 2016; 30:2026-2031. [PMID: 27133826 DOI: 10.1038/leu.2016.123] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Revised: 04/07/2016] [Accepted: 04/12/2016] [Indexed: 12/11/2022]
Abstract
The diagnosis of smoldering multiple myeloma (SMM) includes patients with a heterogeneous risk of progression to active multiple myeloma (MM): some patients will never progress, whereas others will have a high risk of progression within the first 2 years. Therefore, it is important to improve risk assessment at diagnosis. We conducted a retrospective study in a large cohort of SMM patients, in order to investigate the role of Bence Jones (BJ) proteinuria at diagnosis in the progression to active MM. We found that SMM patients presenting with BJ proteinuria had a significantly shorter median time to progression (TTP) to MM compared with patients without BJ proteinuria (22 vs 88 months, respectively; hazard ratio=2.3, 95% confidence interval=1.4-3.9, P=0.002). We also identified risk subgroups based on the amount of BJ proteinuria: ⩾500 mg/24 h, <500 mg/24 h and without it, with a significantly different median TTP (13, 37 and 88 months, P<0.001). Thus, BJ proteinuria at diagnosis is an independent variable of progression to MM that identifies a subgroup of high-risk SMM patients (51% risk of progression at 2 years) and ⩾500 mg of BJ proteinuria may allow, if validated in another series, to reclassify these patients to MM requiring therapy before the end-organ damage development.
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Affiliation(s)
- V González-Calle
- Complejo Asistencial Universitario de Salamanca, Instituto de Investigación Biomédica de Salamanca (IBSAL), Salamanca, Spain
| | - J Dávila
- Complejo Asistencial Universitario de Salamanca, Instituto de Investigación Biomédica de Salamanca (IBSAL), Salamanca, Spain
| | - F Escalante
- Complejo Asistencial Universitario de León, León, Spain
| | - A G de Coca
- Hospital Clínico Universitario de Valladolid, Valladolid, Spain
| | | | - R López
- Hospital Virgen Del Puerto, Plasencia, Spain
| | - A Bárez
- Hospital Nuestra Señora de Sonsoles, Ávila, Spain
| | - J M Alonso
- Complejo Asistencial Universitario de Palencia, Palencia, Spain
| | - R Hernández
- Complejo Asistencial de Zamora, Zamora, Spain
| | | | - P de la Fuente
- Complejo Asistencial Universitario de Burgos, Burgos, Spain
| | - N Puig
- Complejo Asistencial Universitario de Salamanca, Instituto de Investigación Biomédica de Salamanca (IBSAL), Salamanca, Spain
| | - E M Ocio
- Complejo Asistencial Universitario de Salamanca, Instituto de Investigación Biomédica de Salamanca (IBSAL), Salamanca, Spain
| | - N C Gutiérrez
- Complejo Asistencial Universitario de Salamanca, Instituto de Investigación Biomédica de Salamanca (IBSAL), Salamanca, Spain
| | - R García-Sanz
- Complejo Asistencial Universitario de Salamanca, Instituto de Investigación Biomédica de Salamanca (IBSAL), Salamanca, Spain
| | - M V Mateos
- Complejo Asistencial Universitario de Salamanca, Instituto de Investigación Biomédica de Salamanca (IBSAL), Salamanca, Spain
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Arriba M, García JL, Inglada-Pérez L, Rueda D, Osorio I, Rodríguez Y, Álvaro E, Sánchez R, Fernández T, Pérez J, Hernández JM, Benítez J, González-Sarmiento R, Urioste M, Perea J. DNA copy number profiling reveals different patterns of chromosomal instability within colorectal cancer according to the age of onset. Mol Carcinog 2015; 55:705-16. [DOI: 10.1002/mc.22315] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2014] [Revised: 02/19/2015] [Accepted: 02/21/2015] [Indexed: 12/13/2022]
Affiliation(s)
- María Arriba
- Centre for Biomedical Research of 12 de Octubre University Hospital; Madrid Spain
| | - Juan L. García
- Biomedical Research Institute of Salamanca (IBSAL); University Hospital of Salamanca-USAL-CSIC; Salamanca Spain
- Institute of Molecular and Cellular Biology of Cancer (IBMCC); University of Salamanca-CSIC; Salamanca Spain
| | - Lucía Inglada-Pérez
- Hereditary Endocrine Cancer Group; Human Cancer Genetics Program; Spanish National Cancer Research Centre (CNIO); Madrid Spain
- Center for Biomedical Network Research on Rare Diseases (CIBERER); Institute of Health Carlos III; Madrid Spain
| | - Daniel Rueda
- Molecular Biology Laboratory; 12 de Octubre University Hospital; Madrid Spain
| | - Irene Osorio
- Department of Surgery; 12 de Octubre University Hospital; Madrid Spain
| | - Yolanda Rodríguez
- Department of Pathology; 12 de Octubre University Hospital; Madrid Spain
| | - Edurne Álvaro
- Department of Surgery; Infanta Leonor University Hospital; Madrid Spain
| | - Ricard Sánchez
- Centre for Biomedical Research of 12 de Octubre University Hospital; Madrid Spain
| | - Tamara Fernández
- Department of Surgery; 12 de Octubre University Hospital; Madrid Spain
| | - Jessica Pérez
- Biomedical Research Institute of Salamanca (IBSAL); University Hospital of Salamanca-USAL-CSIC; Salamanca Spain
- Institute of Molecular and Cellular Biology of Cancer (IBMCC); University of Salamanca-CSIC; Salamanca Spain
| | - Jesús M. Hernández
- Biomedical Research Institute of Salamanca (IBSAL); University Hospital of Salamanca-USAL-CSIC; Salamanca Spain
| | - Javier Benítez
- Center for Biomedical Network Research on Rare Diseases (CIBERER); Institute of Health Carlos III; Madrid Spain
- Human Genetics Group; Human Cancer Genetics Program; Spanish National Cancer Research Centre (CNIO); Madrid Spain
| | - Rogelio González-Sarmiento
- Biomedical Research Institute of Salamanca (IBSAL); University Hospital of Salamanca-USAL-CSIC; Salamanca Spain
- Institute of Molecular and Cellular Biology of Cancer (IBMCC); University of Salamanca-CSIC; Salamanca Spain
| | - Miguel Urioste
- Center for Biomedical Network Research on Rare Diseases (CIBERER); Institute of Health Carlos III; Madrid Spain
- Familial Cancer Clinical Unit; Human Cancer Genetics Program; Spanish National Cancer Research Centre (CNIO); Madrid Spain
| | - José Perea
- Centre for Biomedical Research of 12 de Octubre University Hospital; Madrid Spain
- Department of Surgery; 12 de Octubre University Hospital; Madrid Spain
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Abstract
Gastroesophageal reflux disease (GERD) has been related with certain psychological dimensions. The influence of mood, emotional intelligence, and perceived quality of life on clinical symptoms and outcome of antireflux surgery was evaluated in GERD patients with and without hiatal hernia. The study included 61 patients who were diagnosed with GERD between 2003 and 2008: 16 of them without hiatal hernia (group A) and 45 of them with hiatal hernia (group B). All of these patients had undergone laparoscopic antireflux surgery. Patients were clinically examined and evaluated with the following instruments: Short Form (SF)-36 Health Survey, Gastrointestinal Quality of Life Index, Hospital Anxiety and Depression (HAD) Scale, and Trait Meta-Mood Scale (TMMS)-24. Proportions were compared by using the chi-squared test; averages were compared by using the Student's t-test (with Bonferroni's correction). In general, our patients intervened for GERD showed results lower than normal or close to the lower limit of normal in the administered tests. Patients in the group without hernia were younger (P < 0.001) and with lower American Society of Anaesthesiologists risk. They showed higher scores in the SF-36 dimensions: Physical Functioning, Physical Role and Emotional Role, and lower scores in the Social Role (P < 0.001). They showed lower scores in the Emotional dimension of Gastrointestinal Quality of Life Index (P = 0.0068) and worse results in the Hospital Anxiety and Depression subscales of Anxiety (P < 0.001) and Depression (not significant). Men in the group without hernia showed higher scores than men in the group with hernia in the TMMS subscales corresponding to Emotional Clarity and Emotional Repair (P < 0.001). Women in the group with hernia showed higher scores than women in the group without hernia regarding Emotional Clarity (P = 0.0012). GERD patients showed poor results in all the tests, and patients without hiatal hernia compared with patients with hernia showed higher levels of anxiety, which interfered with their social life. Moreover, they showed lower tolerance to stress and higher frustration, fear, and worry. On the basis of such unfavorable phychoemotional results observed with GERD patients (especially those without hernia) in the different tests, we propose that improving our knowledge of the psychological profile of GERD patients - particularly those without hiatal hernia - could help in designing individualized medical and psychological therapies and increase success rates.
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Affiliation(s)
- F J Pérez Lara
- Digestive Surgery Department, Antequera Hospital, Málaga, Spain
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Pérez MM, Hernández JM, Bossens J, Jiménez T, Rosa E, Tack F. Vertical flow constructed wetlands: kinetics of nutrient and organic matter removal. Water Sci Technol 2014; 70:76-81. [PMID: 25026582 DOI: 10.2166/wst.2014.183] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The kinetics of organic matter and nutrient removal in a pilot vertical subsurface wetland with red ferralitic soil as substrate were evaluated. The wetland (20 m(2)) was planted with Cyperus alternifolius. The domestic wastewater that was treated in the wetland had undergone a primary treatment consisting of a septic moat and a buffer tank. From the sixth week of operation, the performance of the wetland stabilized, and a significant reduction in pollutant concentration of the effluent wastewater was obtained. Also a significant increase of dissolved oxygen (5 mg/l) was obtained. The organic matter removal efficiency was greater than 85% and the nutrient removal efficiency was greater than 75% in the vertical subsurface wetland. Nitrogen and biochemical oxygen demand (BOD) removal could be described by a first-order model. The kinetic constants were 3.64 and 3.27 d(-1) for BOD and for total nitrogen, respectively. Data on the removal of phosphorus were adapted to a second-order model. The kinetic constant was 0.96 (mg/l)(-1) d(-1). The results demonstrated the potential of vertical flow constructed wetlands to clean treated domestic wastewater before discharge into the environment.
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Affiliation(s)
- M M Pérez
- Study Center of Applied Chemistry, Chemical Pharmacy Faculty, Central University of Las Villas, Cuba E-mail:
| | - J M Hernández
- Study Center of Applied Chemistry, Chemical Pharmacy Faculty, Central University of Las Villas, Cuba E-mail:
| | - J Bossens
- Department of Applied Analytical and Physical Chemistry, Faculty of Bioscience Engineering, Ghent University, Belgium
| | - T Jiménez
- Study Center of Applied Chemistry, Chemical Pharmacy Faculty, Central University of Las Villas, Cuba E-mail:
| | - E Rosa
- Study Center of Applied Chemistry, Chemical Pharmacy Faculty, Central University of Las Villas, Cuba E-mail:
| | - F Tack
- Department of Applied Analytical and Physical Chemistry, Faculty of Bioscience Engineering, Ghent University, Belgium
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Castrillón DM, Mejía SA, Hernández JM, Robledo J. Pulmonary tuberculosis in a 4-month-old twin: hereditary versus environmental factors. Int J Tuberc Lung Dis 2013; 17:848-9. [PMID: 23676175 DOI: 10.5588/ijtld.13.0090] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Herrera JT, Ceja BC, Hernández JM, Sesma RV, Gargollo C. [Carpal tunnel release with minimal incisions. Evaluation of the technique in fresh cadaver models]. Acta Ortop Mex 2013; 27:260-264. [PMID: 24707617] [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: 06/03/2023]
Abstract
OBJECTIVE To assess the carpal tunnel release technique with minimal incisions, blindly, based on the portals of Chow's endoscopic technique in fresh cadaver models. MATERIAL AND METHODS From January 2007 to June 2009, 23 carpal tunnel releases were performed in fresh cadavers, using Chow's endoscopic portals. A malleable retractor and a fluted probe were introduced and the transverse carpal ligament was released with a retrograde scalpel from distal to proximal. We then meticulously dissected the palmar region and the anterior aspect of the forearm under magnification. We recorded the possible injuries to neurovascular and tendinous structures and whether the ligament release had been complete or incomplete, as well as the anatomical variants found. All the procedures were performed by the first author. RESULTS 21 complete transverse carpal ligament releases were performed (91.3%). In two specimens the release of the thenar-hypothenar fascia was incomplete. We found the type I Lanz anatomical variant in one specimen and the type III in two. No associated neurovascular or tendinous injuries were reported. FINAL REMARKS Transverse carpal ligament blind release with minimal incisions should be taken with reservations. With proper training it may be a practical and low cost procedure for the treatment of carpal tunnel syn- drome in our hospital setting. It may be performed quickly, with minimal scars and may decrease the recovery time and the loss of grip strength.
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Costa D, Muñoz C, Carrió A, Nomdedeu M, Calvo X, Solé F, Luño E, Cervera J, Vallespí T, Berneaga D, Gómez C, Arias A, Such E, Sanz G, Grau J, Insunza A, Calasanz MJ, Ardañaz MT, Hernández JM, Azaceta G, Álvarez S, Sánchez J, Martín ML, Bargay J, Gómez V, Cervero CJ, Allegue MJ, Collado R, Campo E, Nomdedeu B. Reciprocal translocations in myelodysplastic syndromes and chronic myelomonocytic leukemias: Review of 5,654 patients with an evaluable karyotype. Genes Chromosomes Cancer 2013; 52:753-63. [DOI: 10.1002/gcc.22071] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2013] [Accepted: 04/11/2013] [Indexed: 12/18/2022] Open
Affiliation(s)
- Dolors Costa
- Unitat d'Hematopatologia; Hospital Clínic; Barcelona; Catalonia; Spain
| | - Concha Muñoz
- Unitat d'Hematopatologia; Hospital Clínic; Barcelona; Catalonia; Spain
| | - Ana Carrió
- Unitat d'Hematopatologia; Hospital Clínic; Barcelona; Catalonia; Spain
| | | | - Xavier Calvo
- Department d'Hematologia; Hospital Clínic; Barcelona; Catalonia; Spain
| | - Francesc Solé
- Institut de Recerca contra la Leucèmia Josep Carreras; Badalona; Catalonia; Spain
| | - Elisa Luño
- Hospital Central de Asturias; Asturias; Spain
| | | | | | - Daniela Berneaga
- Unitat d'Hematopatologia; Hospital Clínic; Barcelona; Catalonia; Spain
| | - Cándida Gómez
- Unitat d'Hematopatologia; Hospital Clínic; Barcelona; Catalonia; Spain
| | - Amparo Arias
- Unitat d'Hematopatologia; Hospital Clínic; Barcelona; Catalonia; Spain
| | | | | | - Javier Grau
- Hospital Germans Trias i Pujol; Badalona; Catalonia; Spain
| | | | | | | | | | - Gemma Azaceta
- Hospital Clínico Universitario de Zaragoza; Zaragoza; Spain
| | - Sara Álvarez
- Centro Nacional de Investigaciones Oncológicas; Madrid; Spain
| | - Joaquín Sánchez
- Servicio de Hematología, Hospital Universitario Reina Sofia, Cordoba, Spain
| | - María L. Martín
- Servicio de Genética, Hospital Doce de Octubre; Madrid; Spain
| | - Joan Bargay
- Servicio de Hematología, Hospital Son LLàtzer; Mallorca; Spain
| | - Valle Gómez
- Servicio de Hematología, Hospital Universitario de la Princesa; Madrid; Spain
| | | | - María J. Allegue
- Servicio de Hematología, Complexo Hospitalario de Pontevedra; Pontevedra; Spain
| | - Rosa Collado
- Servicio de Hematología, Hospital General de Valencia; Valencia; Spain
| | - Elias Campo
- Unitat d'Hematopatologia; Hospital Clínic; Barcelona; Catalonia; Spain
| | - Benet Nomdedeu
- Department d'Hematologia; Hospital Clínic; Barcelona; Catalonia; Spain
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Abstract
BAC array-CGH is a powerful method to identify DNA copy number changes (gains, amplifications and deletions) on a genome-wide scale, and to map these changes to genomic sequence. It is based on the analysis of genomic DNA isolated from test and reference cell populations, the differential labelling with fluorescent dyes and the co-hybridization with a genomic array. BAC array-CGH has proven to be a specific, sensitive, and reliable technique, with considerable advantages compared to other methods used for the analysis of DNA copy number changes. The application of genome scanning technologies and the recent advances in bioinformatics tools that enable us to perform a robust and highly sensitive analysis of array-CGH data, useful not only for genome scanning of tumor cells but also in the identification of novel cancer related genes, oncogenes and suppressor genes. Cytogenetic analysis provides essential information for diagnosis and prognosis in patients with hematologic malignancies such as lymphomas. However, the chromosomal interpretation in non-Hodgkin lymphoma (NHL) is sometimes inconclusive. Copy number aberrations identified by BAC array-CGH analyses could be a complementary methodology to chromosomal analysis. In NHL the genomic imbalances might have a prognostic rather than a diagnostic value. In fact, the diagnosis of NHL is based on pathological and molecular cytogenetics data. Furthermore genetic variations and their association with specific types of lymphoma development, and elucidation of the variable genetic pathways leading to lymphoma development, are important directions for future cancer research. Array-CGH, along with FISH and PCR, will be used for routine diagnostic purposes in near future.
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Affiliation(s)
- Cristina Robledo
- Unidad de Diagnóstico Molecular y Celular del Cáncer, IBMCC, Centro de Investigación del Cáncer, Universidad de Salamanca-CSIC, Salamanca, Spain
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Villamor N, Conde L, Martínez-Trillos A, Cazorla M, Navarro A, Beà S, López C, Colomer D, Pinyol M, Aymerich M, Rozman M, Abrisqueta P, Baumann T, Delgado J, Giné E, González-Díaz M, Hernández JM, Colado E, Payer AR, Rayon C, Navarro B, José Terol M, Bosch F, Quesada V, Puente XS, López-Otín C, Jares P, Pereira A, Campo E, López-Guillermo A. NOTCH1 mutations identify a genetic subgroup of chronic lymphocytic leukemia patients with high risk of transformation and poor outcome. Leukemia 2012; 27:1100-6. [DOI: 10.1038/leu.2012.357] [Citation(s) in RCA: 143] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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12
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Rodríguez AE, Robledo C, García JL, González M, Gutiérrez NC, Hernández JA, Sandoval V, García de Coca A, Recio I, Risueño A, Martín-Núñez G, García E, Fisac R, Conde J, de Las Rivas J, Hernández JM. Identification of a novel recurrent gain on 20q13 in chronic lymphocytic leukemia by array CGH and gene expression profiling. Ann Oncol 2012; 23:2138-2146. [PMID: 22228453 DOI: 10.1093/annonc/mdr579] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/06/2023] Open
Abstract
BACKGROUND The presence of genetic changes is a hallmark of chronic lymphocytic leukemia (CLL). The most common cytogenetic abnormalities with independent prognostic significance in CLL are 13q14, ATM and TP53 deletions and trisomy 12. However, CLL displays a great genetic and biological heterogeneity. The aim of this study was to analyze the genomic imbalances in CLL cytogenetic subsets from both genomic and gene expression perspectives to identify new recurrent alterations. PATIENTS AND METHODS The genomic imbalances and expression levels of 67 patients were analyzed. The novel recurrent abnormalities detected with bacterial artificial chromosome array were confirmed by FISH and oligonucleotide microarrays. In all cases, gene expression profiling was assessed. RESULTS Copy number alterations were identified in 75% of cases. Overall, the results confirmed FISH studies for the regions frequently involved in CLL and also defined a new recurrent gain on chromosome 20q13.12, in 19% (13/67) of the CLL patients. Oligonucleotide expression correlated with the regions of loss or gain of genomic material, suggesting that the changes in gene expression are related to alterations in copy number. CONCLUSION Our study demonstrates the presence of a recurrent gain in 20q13.12 associated with overexpression of the genes located in this region, in CLL cytogenetic subgroups.
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Affiliation(s)
- A E Rodríguez
- IBMCC, Centro de Investigación del Cáncer, Universidad de Salamanca-CSIC, Salamanca
| | - C Robledo
- IBMCC, Centro de Investigación del Cáncer, Universidad de Salamanca-CSIC, Salamanca
| | - J L García
- Instituto de Estudios de Ciencias de la Salud de Castilla y León (IECSCYL)-HUSAL, Castill y León
| | - M González
- Department of Hematology, Hospital Clínico Universitario de Salamanca, Salamanca
| | - N C Gutiérrez
- Department of Hematology, Hospital Clínico Universitario de Salamanca, Salamanca
| | - J A Hernández
- Department of Hematology, Hospital Infanta Leonor, Madrid
| | - V Sandoval
- Department of Hematology, Hospital Virgen Blanca, León
| | - A García de Coca
- Department of Hematology, Hospital Clínico Universitario, Valladolid
| | - I Recio
- Department of Hematology, Hospital Nuestra Señora de Sonsoles, Ávila
| | - A Risueño
- Bioinformatics and Functional Genomics, Centro de Investigación del Cáncer, Universidad de Salamanca-CSIC, Salamanca
| | - G Martín-Núñez
- Department of Hematology, Hospital Virgen del Puerto, Plasencia
| | - E García
- Genomics and Proteomics Unit, Centro de Investigación del Cáncer, Universidad de Salamanca-CSIC, Salamanca
| | - R Fisac
- Department of Hematology, Hospital General de Segovia, Segovia
| | - J Conde
- Department of Hematology, Hospital del Río Hortega, Valladolid, Spain
| | - J de Las Rivas
- Bioinformatics and Functional Genomics, Centro de Investigación del Cáncer, Universidad de Salamanca-CSIC, Salamanca
| | - J M Hernández
- IBMCC, Centro de Investigación del Cáncer, Universidad de Salamanca-CSIC, Salamanca; Department of Hematology, Hospital Clínico Universitario de Salamanca, Salamanca.
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13
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Leone PE, González MB, Elosua C, Gómez-Moreta JA, Lumbreras E, Robledo C, Santos-Briz A, Valero JM, de la Guardia RD, Gutiérrez NC, Hernández JM, García JL. Integration of Global Spectral Karyotyping, CGH Arrays, and Expression Arrays Reveals Important Genes in the Pathogenesis of Glioblastoma Multiforme. Ann Surg Oncol 2012; 19:2367-79. [DOI: 10.1245/s10434-011-2202-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2010] [Indexed: 12/17/2022]
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14
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Quesada V, Conde L, Villamor N, Ordóñez GR, Jares P, Bassaganyas L, Ramsay AJ, Beà S, Pinyol M, Martínez-Trillos A, López-Guerra M, Colomer D, Navarro A, Baumann T, Aymerich M, Rozman M, Delgado J, Giné E, Hernández JM, González-Díaz M, Puente DA, Velasco G, Freije JMP, Tubío JMC, Royo R, Gelpí JL, Orozco M, Pisano DG, Zamora J, Vázquez M, Valencia A, Himmelbauer H, Bayés M, Heath S, Gut M, Gut I, Estivill X, López-Guillermo A, Puente XS, Campo E, López-Otín C. Exome sequencing identifies recurrent mutations of the splicing factor SF3B1 gene in chronic lymphocytic leukemia. Nat Genet 2011; 44:47-52. [PMID: 22158541 DOI: 10.1038/ng.1032] [Citation(s) in RCA: 753] [Impact Index Per Article: 57.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2011] [Accepted: 11/10/2011] [Indexed: 12/13/2022]
Abstract
Here we perform whole-exome sequencing of samples from 105 individuals with chronic lymphocytic leukemia (CLL), the most frequent leukemia in adults in Western countries. We found 1,246 somatic mutations potentially affecting gene function and identified 78 genes with predicted functional alterations in more than one tumor sample. Among these genes, SF3B1, encoding a subunit of the spliceosomal U2 small nuclear ribonucleoprotein (snRNP), is somatically mutated in 9.7% of affected individuals. Further analysis in 279 individuals with CLL showed that SF3B1 mutations were associated with faster disease progression and poor overall survival. This work provides the first comprehensive catalog of somatic mutations in CLL with relevant clinical correlates and defines a large set of new genes that may drive the development of this common form of leukemia. The results reinforce the idea that targeting several well-known genetic pathways, including mRNA splicing, could be useful in the treatment of CLL and other malignancies.
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Affiliation(s)
- Víctor Quesada
- Departamento de Bioquímica y Biología Molecular, Instituto Universitario de Oncología, Universidad de Oviedo, Oviedo, Spain
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15
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Robledo C, García JL, Benito R, Flores T, Mollejo M, Martínez-Climent JÁ, García E, Gutiérrez NC, Piris MA, Hernández JM. Molecular characterization of the region 7q22.1 in splenic marginal zone lymphomas. PLoS One 2011; 6:e24939. [PMID: 21957467 PMCID: PMC3177857 DOI: 10.1371/journal.pone.0024939] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [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: 07/11/2011] [Accepted: 08/24/2011] [Indexed: 01/19/2023] Open
Abstract
Splenic marginal zone lymphomas (SMZL) are an uncommon type of B-cell non-Hodgkin's lymphoma (NHL-B) in which no specific chromosomal translocations have been described. In contrast, the most frequent cytogenetic abnormality is the loss of the long arm of chromosome 7 (7q). Previous reports have located this loss in the 7q32 region. In order to better characterize the genomic imbalances in SMZL, molecular studies were carried out in 73 patients with SMZL. To gain insight into the mapping at 7q a tiling array was also used. The results confirmed the loss of 7q as the most frequent change. In addition, several abnormalities, including 4q22.1, 1q21.3–q22, 6q25.3, 20q13.33, 3q28, 2q23.3–q24.1 and 17p13, were also present. A loss of 7q22.1 at 99925039–101348479 bp was observed in half of the cases. The region of 7q22.1 has not previously been characterised in SMZL. Our results confirmed the presence of a new region of loss on chromosome 7 in these NHL.
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Affiliation(s)
- Cristina Robledo
- Unidad de Diagnóstico Molecular y Celular del Cáncer, IBMCC, Centro de Investigación del Cáncer, Universidad de Salamanca-CSIC, Salamanca, Spain
| | - Juan L. García
- Unidad de Diagnóstico Molecular y Celular del Cáncer, IBMCC, Centro de Investigación del Cáncer, Universidad de Salamanca-CSIC, Salamanca, Spain
- Instituto de Estudios de Ciencias de la Salud de Castilla y León, Salamanca, Spain
| | - Rocío Benito
- Unidad de Diagnóstico Molecular y Celular del Cáncer, IBMCC, Centro de Investigación del Cáncer, Universidad de Salamanca-CSIC, Salamanca, Spain
| | - Teresa Flores
- Servicio de Patología, Hospital Universitario de Salamanca, Salamanca, Spain
| | - Manuela Mollejo
- Servicio de Patología, Hospital Virgen de la Salud, Toledo, Spain
| | | | - Eva García
- Unidad de Genómica, Centro de Investigación del Cáncer, Universidad de Salamanca-CSIC, Salamanca, Spain
| | - Norma C. Gutiérrez
- Servicio de Hematología, Hospital Universitario de Salamanca, Salamanca, Spain
| | - Miguel A. Piris
- Centro Nacional de Investigaciones Oncológicas (CNIO), Madrid, Spain
| | - Jesús M. Hernández
- Unidad de Diagnóstico Molecular y Celular del Cáncer, IBMCC, Centro de Investigación del Cáncer, Universidad de Salamanca-CSIC, Salamanca, Spain
- Servicio de Hematología, Hospital Universitario de Salamanca, Salamanca, Spain
- * E-mail:
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16
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Zang H, Zhang K, Ding X, Bai S, Hernández JM, Yao B. Effects of different dietary vitamin combinations on the egg quality and vitamin deposition in the whole egg of laying hens. Rev Bras Cienc Avic 2011. [DOI: 10.1590/s1516-635x2011000300005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- H Zang
- Sichuan Agricultural University, China
| | - K Zhang
- Sichuan Agricultural University, China
| | - X Ding
- Sichuan Agricultural University, China
| | - S Bai
- Sichuan Agricultural University, China
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17
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Hernández JM, Granada I, Solé F. [From conventional cytogenetics to microarrays. Fifty years of Philadelphia chromosome]. Med Clin (Barc) 2011; 137:221-9. [PMID: 20591449 DOI: 10.1016/j.medcli.2010.04.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2010] [Accepted: 04/27/2010] [Indexed: 11/16/2022]
Abstract
In 1960 Ph-chromosome was found associated with the presence of chronic myelogenous leukemia. In these 50 years an increasing number of cytogenetic abnormalities have been found associated with hematological malignancies. The presence of these abnormalities is not only important for the diagnosis of the patient, but it also contributes to the prognosis of patients with leukemia or lymphoma. For this reason the WHO classification of hematological disease has included these studies for the correct characterization of leukemias and lymphomas. In addition, the use of FISH and micromatrix methodologies have refined the genetic lesions present in these malignancies. The cytogenetic changes observed also provide further information in relation to the therapy.
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Affiliation(s)
- Jesús M Hernández
- Servicio de Hematología, Hospital Universitario de Salamanca y Unidad de Diagnóstico Molecular y Celular del Cáncer, Instituto de Biología Molecular y Celular del Cáncer (IBMCC), Centro de Investigación del Cáncer, Universidad de Salamanca, Salamanca, España.
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18
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Puente XS, Pinyol M, Quesada V, Conde L, Ordóñez GR, Villamor N, Escaramis G, Jares P, Beà S, González-Díaz M, Bassaganyas L, Baumann T, Juan M, López-Guerra M, Colomer D, Tubío JMC, López C, Navarro A, Tornador C, Aymerich M, Rozman M, Hernández JM, Puente DA, Freije JMP, Velasco G, Gutiérrez-Fernández A, Costa D, Carrió A, Guijarro S, Enjuanes A, Hernández L, Yagüe J, Nicolás P, Romeo-Casabona CM, Himmelbauer H, Castillo E, Dohm JC, de Sanjosé S, Piris MA, de Alava E, San Miguel J, Royo R, Gelpí JL, Torrents D, Orozco M, Pisano DG, Valencia A, Guigó R, Bayés M, Heath S, Gut M, Klatt P, Marshall J, Raine K, Stebbings LA, Futreal PA, Stratton MR, Campbell PJ, Gut I, López-Guillermo A, Estivill X, Montserrat E, López-Otín C, Campo E. Whole-genome sequencing identifies recurrent mutations in chronic lymphocytic leukaemia. Nature 2011; 475:101-5. [PMID: 21642962 PMCID: PMC3322590 DOI: 10.1038/nature10113] [Citation(s) in RCA: 1159] [Impact Index Per Article: 89.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2010] [Accepted: 04/06/2011] [Indexed: 02/06/2023]
Abstract
Chronic lymphocytic leukaemia (CLL), the most frequent leukaemia in adults in Western countries, is a heterogeneous disease with variable clinical presentation and evolution. Two major molecular subtypes can be distinguished, characterized respectively by a high or low number of somatic hypermutations in the variable region of immunoglobulin genes. The molecular changes leading to the pathogenesis of the disease are still poorly understood. Here we performed whole-genome sequencing of four cases of CLL and identified 46 somatic mutations that potentially affect gene function. Further analysis of these mutations in 363 patients with CLL identified four genes that are recurrently mutated: notch 1 (NOTCH1), exportin 1 (XPO1), myeloid differentiation primary response gene 88 (MYD88) and kelch-like 6 (KLHL6). Mutations in MYD88 and KLHL6 are predominant in cases of CLL with mutated immunoglobulin genes, whereas NOTCH1 and XPO1 mutations are mainly detected in patients with unmutated immunoglobulins. The patterns of somatic mutation, supported by functional and clinical analyses, strongly indicate that the recurrent NOTCH1, MYD88 and XPO1 mutations are oncogenic changes that contribute to the clinical evolution of the disease. To our knowledge, this is the first comprehensive analysis of CLL combining whole-genome sequencing with clinical characteristics and clinical outcomes. It highlights the usefulness of this approach for the identification of clinically relevant mutations in cancer.
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Affiliation(s)
- Xose S Puente
- Departamento de Bioquímica y Biología Molecular, Instituto Universitario de Oncología, Universidad de Oviedo, 33006 Oviedo, Spain
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19
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García-Sanz R, Ocio EM, Caballero A, Magalhães RJP, Alonso J, López-Anglada L, Villaescusa T, Puig N, Hernández JM, Fernández-Calvo J, Aguilar A, Martín A, López R, Paiva B, Orfao A, Vidriales B, San-Miguel JF, del Carpio D. Post-Treatment Bone Marrow Residual Disease > 5% by Flow Cytometry Is Highly Predictive of Short Progression-Free and Overall Survival in Patients With Waldenström's Macroglobulinemia. Clinical Lymphoma Myeloma and Leukemia 2011; 11:168-71. [DOI: 10.3816/clml.2011.n.040] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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20
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Puigdellívol-Sánchez A, Prats-Galino A, Reina MA, Machés F, Hernández JM, De Andrés J, van Zundert A. Three-dimensional magnetic resonance image of structures enclosed in the spinal canal relevant to anesthetists and estimation of the lumbosacral CSF volume. Acta Anaesthesiol Belg 2011; 62:37-45. [PMID: 21612144] [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] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Three-dimensional (3D) image-reconstruction of structures inside the spinal canal certainly produces relevant data of interest in regional anesthesia. Nowadays, all hospital MRI equipment is designed mainly for clinical diagnostic purposes. In order to overcome the limitations we have produced more accurate images of structures contained inside the spinal canal using different software, validating our quantitative results with those obtained with standard hospital MRI equipment. Neuroanatomical 3D reconstruction using Amira software, including detailed manual edition was compared with semi-automatic 3D segmentation for CSF volume calculations by commonly available software linked to the MR equipment (MR hospital). Axial sections from seven patients were grouped in two aligned blocks (T1 Fast Field Eco 3D and T2 Balance Fast Field Eco 3D-resolution 0,65 x 0,65 x 0,65 mm, 130 mm length, 400 sections per case). T2 weighted was used for CSF volume estimations. The selected program allowed us to reconstruct 3D images of human vertebrae, dural sac, epidural fat, CSF and nerve roots. The CSF volume, including the amount contained inside nerve roots, was calculated. Different segmentation thresholds were used, but the CSF volume estimations showed high correlation between both teams (Pearson coefficient = 0.98, p = 0.003 for lower blocks; Pearson 0.89, p = 0.042 for upper blocks). The mean estimated value of CSF volume in lower blocks (L3-S1) was 15.8 + 2.9 ml (Amira software) and 13.1 +/- 1.9 ml (software linked to the MR equipment) and in upper blocks (T11-L2) was 21 +/- 4.47 ml and 18.9 +/- 3.5 ml, respectively. A high variability was detected among cases, without correlation with either weight, height or body mass index. Aspects concerning the partial volume effect are also discussed. Quick semi-automatic hospital 3D reconstructions give results close to detailed neuroanatomical 3D reconstruction and could be used in the future for individual quantification of lumbosacral CSF volumes and other structures for anesthetic purposes.
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21
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Sarasquete ME, Gutiérrez NC, Misiewicz-Krzeminska I, Paiva B, Chillón MC, Alcoceba M, García-Sanz R, Hernández JM, González M, San-Miguel JF. Upregulation of Dicer is more frequent in monoclonal gammopathies of undetermined significance than in multiple myeloma patients and is associated with longer survival in symptomatic myeloma patients. Haematologica 2010; 96:468-71. [PMID: 21160068 DOI: 10.3324/haematol.2010.033845] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Dicer and Drosha are key enzymes in the miRNA-processing pathway which is altered in many human cancers. We analyzed Dicer and Drosha expression levels by quantitative PCR in 151 patients with monoclonal gammopathies: 102 symptomatic myeloma patients, 23 smoldering myelomas and 26 monoclonal gammopathy of undetermined significance. We found that Dicer expression values were significantly higher in monoclonal gammopathy of undetermined significance than in smoldering myelomas and symptomatic myeloma (mean ± SD, 0.84 ± 0.36 vs. 0.60 ± 0.23 and 0.62 ± 0.51; P<0.01). Moreover, the median progression-free survival was significantly longer in symptomatic myeloma patients with high expression of Dicer (not reached vs. 23.6 months; P=0.02). By contrast, no differences in the expression of Drosha among these groups of patients were observed. Our data suggest that Dicer expression may play an important role in the progression and prognosis of monoclonal gammopathies.
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Affiliation(s)
- María E Sarasquete
- Servicio de Hematología, Hospital Universitario, Centro de Investigación del Cáncer-IBMCC (USAL-CSIC), Salamanca, Spain
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Wang H, Douw L, Hernández JM, Reijneveld JC, Stam CJ, Van Mieghem P. Effect of tumor resection on the characteristics of functional brain networks. Phys Rev E Stat Nonlin Soft Matter Phys 2010; 82:021924. [PMID: 20866854 DOI: 10.1103/physreve.82.021924] [Citation(s) in RCA: 20] [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] [Subscribe] [Scholar Register] [Received: 03/30/2010] [Revised: 07/05/2010] [Indexed: 05/29/2023]
Abstract
Brain functioning such as cognitive performance depends on the functional interactions between brain areas, namely, the functional brain networks. The functional brain networks of a group of patients with brain tumors are measured before and after tumor resection. In this work, we perform a weighted network analysis to understand the effect of neurosurgery on the characteristics of functional brain networks. Statistically significant changes in network features have been discovered in the beta (13-30 Hz) band after neurosurgery: the link weight correlation around nodes and within triangles increases which implies improvement in local efficiency of information transfer and robustness; the clustering of high link weights in a subgraph becomes stronger, which enhances the global transport capability; and the decrease in the synchronization or virus spreading threshold, revealed by the increase in the largest eigenvalue of the adjacency matrix, which suggests again the improvement of information dissemination.
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Affiliation(s)
- H Wang
- Delft University of Technology, The Netherlands
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23
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Gutiérrez NC, Sarasquete ME, Misiewicz-Krzeminska I, Delgado M, De Las Rivas J, Ticona FV, Fermiñán E, Martín-Jiménez P, Chillón C, Risueño A, Hernández JM, García-Sanz R, González M, San Miguel JF. Deregulation of microRNA expression in the different genetic subtypes of multiple myeloma and correlation with gene expression profiling. Leukemia 2010; 24:629-37. [PMID: 20054351 DOI: 10.1038/leu.2009.274] [Citation(s) in RCA: 170] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Specific microRNA (miRNA) signatures have been associated with different cytogenetic subtypes in acute leukemias. This finding prompted us to investigate potential associations between genetic abnormalities in multiple myeloma (MM) and singular miRNA expression profiles. Moreover, global gene expression profiling was also analyzed to find correlated miRNA gene expression and select miRNA target genes that show such correlation. For this purpose, we analyzed the expression level of 365 miRNAs and the gene expression profiling in 60 newly diagnosed MM patients, selected to represent the most relevant recurrent genetic abnormalities. Supervised analysis showed significantly deregulated miRNAs in the different cytogenetic subtypes as compared with normal PC. It is interesting to note that miR-1 and miR-133a clustered on the same chromosomal loci, were specifically overexpressed in the cases with t(14;16). The analysis of the relationship between miRNA expression and their respective target genes showed a conserved inverse correlation between several miRNAs deregulated in MM cells and CCND2 expression level. These results illustrate, for the first time, that miRNA expression pattern in MM is associated with genetic abnormalities, and that the correlation of the expression profile of miRNA and their putative mRNA targets is useful to find statistically significant protein-coding genes in MM pathogenesis associated with changes in specific miRNAs.
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Affiliation(s)
- N C Gutiérrez
- Servicio de Hematología, Hospital Universitario, Centro de Investigación del Cáncer-IBMCC (USAL-CSIC), Salamanca, Spain
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24
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Robledo C, García JL, Caballero D, Conde E, Arranz R, Flores T, Grande C, Rodríguez J, García E, Sáez AI, González M, Gutiérrez NC, Piris MA, Hernández JM. Array comparative genomic hybridization identifies genetic regions associated with outcome in aggressive diffuse large B-cell lymphomas. Cancer 2009; 115:3728-37. [DOI: 10.1002/cncr.24430] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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25
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Sáez AI, García-Cosío M, Sáez AJ, Hernández JM, Sánchez-Verde L, Álvarez D, de la Cueva P, Arranz R, Conde E, Grande C, Rodríguez J, Caballero D, Piris MÁ. Identification of biological markers of sensitivity to high-clinical-risk-adapted therapy for patients with diffuse large B-cell lymphoma. Leuk Lymphoma 2009; 50:571-81. [DOI: 10.1080/10428190902785528] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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26
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Glez-Peña D, Díaz F, Hernández JM, Corchado JM, Fdez-Riverola F. geneCBR: a translational tool for multiple-microarray analysis and integrative information retrieval for aiding diagnosis in cancer research. BMC Bioinformatics 2009; 10:187. [PMID: 19538727 PMCID: PMC2703634 DOI: 10.1186/1471-2105-10-187] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [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: 12/09/2008] [Accepted: 06/18/2009] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND Bioinformatics and medical informatics are two research fields that serve the needs of different but related communities. Both domains share the common goal of providing new algorithms, methods and technological solutions to biomedical research, and contributing to the treatment and cure of diseases. Although different microarray techniques have been successfully used to investigate useful information for cancer diagnosis at the gene expression level, the true integration of existing methods into day-to-day clinical practice is still a long way off. Within this context, case-based reasoning emerges as a suitable paradigm specially intended for the development of biomedical informatics applications and decision support systems, given the support and collaboration involved in such a translational development. With the goals of removing barriers against multi-disciplinary collaboration and facilitating the dissemination and transfer of knowledge to real practice, case-based reasoning systems have the potential to be applied to translational research mainly because their computational reasoning paradigm is similar to the way clinicians gather, analyze and process information in their own practice of clinical medicine. RESULTS In addressing the issue of bridging the existing gap between biomedical researchers and clinicians who work in the domain of cancer diagnosis, prognosis and treatment, we have developed and made accessible a common interactive framework. Our geneCBR system implements a freely available software tool that allows the use of combined techniques that can be applied to gene selection, clustering, knowledge extraction and prediction for aiding diagnosis in cancer research. For biomedical researches, geneCBR expert mode offers a core workbench for designing and testing new techniques and experiments. For pathologists or oncologists, geneCBR diagnostic mode implements an effective and reliable system that can diagnose cancer subtypes based on the analysis of microarray data using a CBR architecture. For programmers, geneCBR programming mode includes an advanced edition module for run-time modification of previous coded techniques. CONCLUSION geneCBR is a new translational tool that can effectively support the integrative work of programmers, biomedical researches and clinicians working together in a common framework. The code is freely available under the GPL license and can be obtained at http://www.genecbr.org.
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Affiliation(s)
- Daniel Glez-Peña
- ESEI: Escuela Superior de Ingeniería Informática, University of Vigo, Edificio Politécnico, Campus Universitario As Lagoas s/n 32004, Ourense, Spain
| | - Fernando Díaz
- Computer Science Department, University of Valladolid, Escuela Universitaria de Informática, Plaza Santa Eulalia, 9–11, 40005, Segovia, Spain
| | - Jesús M Hernández
- Hematological Service, Hospital Universitario de Salamanca and Centro de Investigación del Cáncer (CIC), Universisty of Salamanca-CSIC, Campus Miguel de Unamuno, 37007, Salamanca, Spain
| | - Juan M Corchado
- Computer Science Department, University of Salamanca, Plaza de la Merced s/n, 37008, Salamanca, Spain
| | - Florentino Fdez-Riverola
- ESEI: Escuela Superior de Ingeniería Informática, University of Vigo, Edificio Politécnico, Campus Universitario As Lagoas s/n 32004, Ourense, Spain
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Decelle W, Vanacken J, Moshchalkov VV, Tejada J, Hernández JM, Macià F. Propagation of magnetic avalanches in Mn12Ac at high field sweep rates. Phys Rev Lett 2009; 102:027203. [PMID: 19257315 DOI: 10.1103/physrevlett.102.027203] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2007] [Revised: 05/18/2008] [Indexed: 05/27/2023]
Abstract
Time-resolved measurements of the magnetization reversal in single crystals of Mn12Ac in pulsed magnetic fields, at magnetic field sweep rates from 1.5 kT/s up to 7 kT/s, suggest a new process that cannot be scaled onto a deflagrationlike propagation driven by heat diffusion. The sweep rate dependence of the propagation velocity, increasing from a few 100 m/s up to the speed of sound in Mn12Ac, indicates the existence of two new regimes at the highest sweep rates, with a transition around 4 kT/s that can be understood as a magnetic deflagration-to-detonation transition.
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Affiliation(s)
- W Decelle
- INPAC-Institute for Nanoscale Physics and Chemistry, Katholieke Universiteit Leuven, Celestijnenlaan 200D, B-3001 Leuven, Belgium
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Olazábal J, García JL, Gutiérrez NC, Sierra M, González M, Hernández JM. Transient t(11;17)(q14;q12) in patient with chronic myelogenous leukemia in complete molecular response. ACTA ACUST UNITED AC 2008; 186:125-6. [PMID: 18940478 DOI: 10.1016/j.cancergencyto.2008.07.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2008] [Accepted: 07/10/2008] [Indexed: 11/19/2022]
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Mallo M, Arenillas L, Espinet B, Salido M, Hernández JM, Lumbreras E, del Rey M, Arranz E, Ramiro S, Font P, González O, Renedo M, Cervera J, Such E, Sanz GF, Luño E, Sanzo C, González M, Calasanz MJ, Mayans J, García-Ballesteros C, Amigo V, Collado R, Oliver I, Carbonell F, Bureo E, Insunza A, Yañez L, Muruzabal MJ, Gómez-Beltrán E, Andreu R, León P, Gómez V, Sanz A, Casasola N, Moreno E, Alegre A, Martín ML, Pedro C, Serrano S, Florensa L, Solé F. Fluorescence in situ hybridization improves the detection of 5q31 deletion in myelodysplastic syndromes without cytogenetic evidence of 5q-. Haematologica 2008; 93:1001-8. [PMID: 18591625 DOI: 10.3324/haematol.13012] [Citation(s) in RCA: 29] [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: 11/09/2022] Open
Abstract
BACKGROUND More than 50% of patients with myelodysplastic syndromes present cytogenetic aberrations at diagnosis. Partial or complete deletion of the long arm of chromosome 5 is the most frequent abnormality. The aim of this study was to apply fluorescence in situ hybridization of 5q31 in patients diagnosed with de novo myelodysplastic syndromes in whom conventional banding cytogenetics study had shown a normal karyotype, absence of metaphases or an abnormal karyotype without evidence of del(5q). DESIGN AND METHODS We performed fluorescence in situ hybridization of 5q31 in 716 patients, divided into two groups: group A patients (n=637) in whom the 5q deletion had not been detected at diagnosis by conventional banding cytogenetics and group B patients (n=79), in whom cytogenetic analysis had revealed the 5q deletion (positive control group). RESULTS In group A (n=637), the 5q deletion was detected by fluorescence in situ hybridization in 38 cases (5.96%). The majority of positive cases were diagnosed as having the 5q- syndrome. The deletion was mainly observed in cases in which the cytogenetics study had shown no metaphases or an aberrant karyotype with chromosome 5 involved. In group B (n=79), the 5q deletion had been observed by cytogenetics and was confirmed to be present in all cases by fluorescence in situ hybridization of 5q31. CONCLUSIONS Fluorescence in situ hybridization of 5q31 detected the 5q deletion in 6% of cases without clear evidence of del(5q) by conventional banding cytogenetics. We suggest that fluorescence in situ hybridization of 5q31 should be performed in cases of a suspected '5q- syndrome' and/or if the cytogenetic study shows no metaphases or an aberrant karyotype with chromosome 5 involved (no 5q- chromosome).
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Affiliation(s)
- Mar Mallo
- Laboratori de, Citogenètica i Biologia Molecular, Servei de Patologia, IMAS, GRETNHE, IMIM-Hospital del Mar, Barcelona
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30
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Armellini A, Sarasquete ME, García-Sanz R, Chillón MC, Balanzategui A, Alcoceba M, Fuertes M, López R, Hernández JM, Fernández-Calvo J, Sierra M, Megido M, Orfão A, Gutiérrez NC, González M, San Miguel JF. Low expression of ZHX2, but not RCBTB2 or RAN, is associated with poor outcome in multiple myeloma. Br J Haematol 2008; 141:212-5. [PMID: 18353163 DOI: 10.1111/j.1365-2141.2007.06956.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
RAN, ZHX2 and RCBTB2 (CHC1L) expression was evaluated by quantitative real time reverse transcription polymerase chain reaction in plasma cells from 85 monoclonal gammopathies: 58 symptomatic multiple myeloma (MM) (52 untreated, six relapsed), eight smouldering MM, five monoclonal gammopathy of undetermined significance, four plasma cell leukaemias and 10 myeloid cell lines. ZHX2 was weakly expressed in high-risk/proliferative disease compared to low-risk or indolent disease. High ZHX2 expression was associated with better response and longer survival after high-dose therapy. RCBTB2 expression was weaker in hyperdiploid versus non-hyperdiploid cases while RAN was more expressed in symptomatic MM and cell lines.
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Affiliation(s)
- A Armellini
- Haematology Department, University Hospital of Salamanca, Salamanca, Spain
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31
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Gutiérrez NC, Ocio EM, de Las Rivas J, Maiso P, Delgado M, Fermiñán E, Arcos MJ, Sánchez ML, Hernández JM, San Miguel JF. Gene expression profiling of B lymphocytes and plasma cells from Waldenström's macroglobulinemia: comparison with expression patterns of the same cell counterparts from chronic lymphocytic leukemia, multiple myeloma and normal individuals. Leukemia 2007; 21:541-9. [PMID: 17252022 DOI: 10.1038/sj.leu.2404520] [Citation(s) in RCA: 162] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The tumoral clone of Waldenström's macroglobulinemia (WM) shows a wide morphological heterogeneity, which ranges from B lymphocytes (BL) to plasma cells (PC). By means of genome-wide expression profiling we have been able to identify genes exclusively deregulated in BL and PC from WM, but with a similar expression pattern in their corresponding cell counterparts from chronic lymphocytic leukemia (CLL) and multiple myeloma (MM), as well as normal individuals. The differentially expressed genes have important functions in B-cell differentiation and oncogenesis. Thus, two of the genes downregulated in WM-BL were IL4R, which plays a relevant role in CLL B-cell survival, and BACH2, which participates in the development of class-switched PC. Interestingly, one of the upregulated genes in WM-BL was IL6. A set of four genes was able to discriminate clonal BL from WM and CLL: LEF1 (WNT/beta-catenin pathway), MARCKS, ATXN1 and FMOD. We also found deregulation of genes involved in plasma cell differentiation such as PAX5, which was overexpressed in WM-PC, and IRF4 and BLIMP1, which were underexpressed. In addition, three of the target genes activated by PAX5 - CD79, BLNK and SYK - were upregulated in WM-PC. In summary, these results indicate that both PC and BL from WM are genetically different from the MM and CLL cell counterpart.
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Affiliation(s)
- N C Gutiérrez
- Servicio de Hematología, Hospital Universitario de Salamanca and Centro de Investigación del Cáncer (CIC), Universidad de Salamanca-CSIC, Salamanca, Spain
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Larrea L, Albizuri J, Irizar I, Hernández JM. Design and operation of SBR processes for small plants based on simulations. Water Sci Technol 2007; 55:163-71. [PMID: 17506434 DOI: 10.2166/wst.2007.141] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
The paper firstly presents an experimental study in a SBR pilot plant operated at 20 degrees C for nitrogen removal from a very small village wastewater. The plant consisted of only one reactor fed continuously throughout the day and aerated intermittently. Two tests with seven and three intermittences of mixing/aerated phases were conducted and verification of the results by simulations of the activated sludge model (ASM) was also carried out. The experimental results and simulation showed that a wide range of effluent N03-N can be obtained using different numbers of intermittences and values of the oxygen transfer coefficient (K(L)a). At the same time, the paper presents a design procedure for SBR processes based on an iterative process of simulations of the ASM model. After the selection of the cycle time, the mixing/aeration pattern, the initial volume, the solid retention time, and the duration of the phases, the simulation is undertaken, resulting in values for the effluent NH4-N and NO3-N, and the suspended solids before settling. Then, the latter parameters are verified to match the effluent and settling requirements. As an application of the design procedure, the effect on design and operation of different SBR configurations and of several operating conditions are analysed in three case studies.
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Affiliation(s)
- L Larrea
- CEIT and Tecnun, University of Navarra, Manuel de Lardizábal 15, 20018, San Sebastían, Spain.
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Prieto-Sánchez RM, Hernández JA, García JL, Gutiérrez NC, Miguel JS, Bustelo XR, Hernández JM. Overexpression of the VAV proto-oncogene product is associated with B-cell chronic lymphocytic leukaemia displaying loss on 13q. Br J Haematol 2006; 133:642-5. [PMID: 16704440 PMCID: PMC1950221 DOI: 10.1111/j.1365-2141.2006.06094.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
The expression of the VAV proto-oncogene in 57 patients with chronic myeloproliferative disease (CMD), B-cell acute lymphoblastic leukaemia (B-ALL) and B-cell non-Hodgkin Lymphoma (B-NHL), and 61 with B-cell chronic lymphocytic leukaemia (B-CLL) was analysed. VAV overexpression was observed in 19.5% of cases and 81% of VAV-positive tumours also displayed VAV phosphorylation. Overexpression was not observed in B-ALL or CMD, but 13% of B-NHL and 34.4% of B-CLL patients (P = 0.002) overexpressed VAV. The overexpression and phosphorylation of VAV was detected more frequently in 13q- chronic lymphocytic leukaemias (71.4%) versus other B-CLLs (23.4%, P = 0.001). Overexpression of VAV protein is a frequent event in patients with B-CLL displaying loss of 13q sequences.
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MESH Headings
- Bone Marrow/metabolism
- Burkitt Lymphoma/genetics
- Burkitt Lymphoma/metabolism
- Chromosomes, Human, Pair 13/genetics
- Gene Deletion
- Humans
- In Situ Hybridization, Fluorescence
- Leukemia, Lymphocytic, Chronic, B-Cell/genetics
- Leukemia, Lymphocytic, Chronic, B-Cell/metabolism
- Lymphoma, B-Cell/genetics
- Lymphoma, B-Cell/metabolism
- Phosphorylation
- Proto-Oncogene Mas
- Proto-Oncogene Proteins c-vav/metabolism
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Affiliation(s)
- Rosario M. Prieto-Sánchez
- Centro de Investigación del Cáncer, Hospital Clínico Universitario de Salamanca
- Instituto de Biología Molecular y Celular del Cáncer, University of Salamanca-CSIC, Campus Unamuno, E-37007 Salamanca, Spain
| | | | - Juan L. García
- Centro de Investigación del Cáncer, Hospital Clínico Universitario de Salamanca
- Instituto de Biología Molecular y Celular del Cáncer, University of Salamanca-CSIC, Campus Unamuno, E-37007 Salamanca, Spain
| | - Norma C. Gutiérrez
- Centro de Investigación del Cáncer, Hospital Clínico Universitario de Salamanca
- Department of Haematology, Hospital Clínico Universitario de Salamanca, University of Salamanca, Paseo de San Vicente 58-182, E-37007 Salamanca, Spain
| | - Jesús San Miguel
- Centro de Investigación del Cáncer, Hospital Clínico Universitario de Salamanca
- Instituto de Biología Molecular y Celular del Cáncer, University of Salamanca-CSIC, Campus Unamuno, E-37007 Salamanca, Spain
- Department of Haematology, Hospital Clínico Universitario de Salamanca, University of Salamanca, Paseo de San Vicente 58-182, E-37007 Salamanca, Spain
| | - Xosé R. Bustelo
- Centro de Investigación del Cáncer, Hospital Clínico Universitario de Salamanca
- Instituto de Biología Molecular y Celular del Cáncer, University of Salamanca-CSIC, Campus Unamuno, E-37007 Salamanca, Spain
| | - Jesús M. Hernández
- Centro de Investigación del Cáncer, Hospital Clínico Universitario de Salamanca
- Department of Haematology, Hospital Clínico Universitario de Salamanca, University of Salamanca, Paseo de San Vicente 58-182, E-37007 Salamanca, Spain
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Gutiérrez NC, Castellanos MV, Martín ML, Mateos MV, Hernández JM, Fernández M, Carrera D, Rosiñol L, Ribera JM, Ojanguren JM, Palomera L, Gardella S, Escoda L, Hernández-Boluda JC, Bello JL, de la Rubia J, Lahuerta JJ, San Miguel JF. Prognostic and biological implications of genetic abnormalities in multiple myeloma undergoing autologous stem cell transplantation: t(4;14) is the most relevant adverse prognostic factor, whereas RB deletion as a unique abnormality is not associated with adverse prognosis. Leukemia 2006; 21:143-50. [PMID: 17024116 DOI: 10.1038/sj.leu.2404413] [Citation(s) in RCA: 146] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Fluorescence in situ hybridization (FISH) has become a powerful technique for prognostic assessment in multiple myeloma (MM). However, the existence of associations between cytogenetic abnormalities compels us to re-assess the value of each abnormality. A total of 260 patients with MM at the time of diagnosis, enrolled in the GEM-2000 Spanish transplant protocol, have been analyzed by FISH in order to ascertain the independent influence on myeloma prognosis of IGH translocations, as well as RB and P53 deletions. Survival analyses showed that patients with t(4;14), RB or P53 deletions had a significantly shorter survival than patients without these abnormalities. However, patients with RB deletions without other abnormalities in FISH analysis, displayed a similar outcome to those patients without genetic changes by FISH (46 vs 54 months, P=0.3). In the multivariate analysis the presence of t(4;14), RB deletion associated with other abnormalities, age >60 years, high proportion of S-phase cells and advanced stage of the disease according to the International Staging System retained their independent prognostic influence. In summary, RB deletion as a sole abnormality does not lead to a shortening in the survival of MM patients, whereas t(4;14) confers the worst prognosis in MM patients treated with high-dose chemotherapy.
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Affiliation(s)
- N C Gutiérrez
- Servicios de Hematología: Hospital Universitario de Salamanca and Centro de Investigación del Cáncer (CIC), Universidad de Salamanca-CSIC, Spain
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Fuentes-Biggi J, Ferrari-Arroyo MJ, Boada-Muñoz L, Touriño-Aguilera E, Artigas-Pallarés J, Belinchón-Carmona M, Muñoz-Yunta JA, Hervás-Zúñiga A, Canal-Bedia R, Hernández JM, Díez-Cuervo A, Idiazábal-Aletxa MA, Mulas F, Palacios S, Tamarit J, Martos-Pérez J, Posada-De la Paz M. [Good practice guidelines for the treatment of autistic spectrum disorders]. Rev Neurol 2006; 43:425-38. [PMID: 17006862] [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: 05/12/2023]
Abstract
INTRODUCTION Due to the inexistence of an aetiology-based intervention for autistic spectrum disorders (ASD) families and professionals are exposed to diverse and sometimes conflictive recommendations when they have to decide the most adequate alternative for treatment. AIM To elaborate treatment guidelines agreed by consensus at the ASD Study Group of the (National) Institute of Health Carlos III. DEVELOPMENT Information about treatment of ASD was searched and gathered through available evidence based medical (EBM) databases. The data generated was complemented with practice parameters published elsewhere, reports from prestigious international institutions, focus oriented searches in PubMed and, finally, the opinion and experience of a multidisciplinary Study Group with extensive experience in treating ASD in Spain. Most popular treatment methods were reviewed as well as the common elements to be considered in successful support programs. CONCLUSION No simple treatment algorithm can be produced at this time, and the level of available evidence based recommendations are in the weaker degrees of EBM classifications. Nevertheless, there is widespread agreement to stress that education, with special incidence in the development of communication and social competence, with the addition of community support are the main means of treatment. They can be complemented, depending on individual needs, with medication, behavioural approaches and cognitive-behavioural therapy for associated psychological problems in persons with higher cognitive level. Support to families and community empowerment are essential elements for the quality of life of persons with ASD.
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Sierra M, Alonso A, Odero MD, Gonzalez MB, Lahortiga I, Pérez JJ, García JL, Gutiérrez NC, Calasanz MJ, San Miguel JF, Hernández JM. Geographic differences in the incidence of cytogenetic abnormalities of acute myelogenous leukemia (AML) in Spain. Leuk Res 2006; 30:943-8. [PMID: 16503352 DOI: 10.1016/j.leukres.2005.12.025] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [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: 08/03/2005] [Revised: 11/10/2005] [Accepted: 12/27/2005] [Indexed: 10/25/2022]
Abstract
The incidence of chromosomal abnormalities in acute myeloid leukemia (AML) differs according to geographical regions in Spain. We analyse 1,271 consecutive patients diagnosed of AML between 1995 and 2002 in three different regions of Spain: northern, central and southern. There were 624 males (55%) and 505 females (45%). Age ranged between 1 month and 94 years with a median of 61 years. Abnormal karyotypes were observed in 64% of cases. Numerical abnormalities as sole cytogenetic changes were detected in 15% of patients, while structural aberrations were present in 28% of cases, and both abnormalities were found in 22% of patients. A significantly higher proportion of t(15;17) was observed in the south of Spain (21.6%) than in the central (17%) or northern regions (12.6%) (p=0.03). By contrast, patients from the south of Spain showed lower incidence of t(8;21) (0%, compared to 1.6% and 3.6% in central and northern areas, respectively, p=0.04). These differences were maintained in the age-adjusted analysis. Trisomy 8 showed similar incidence in southern and central areas, while the incidence in the northern area was lower (14% and 10%, respectively, p=0.04). Other chromosomal abnormalities, such as inv(16) or 11q23 rearrangements, were found at similar frequencies in the three regions.
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MESH Headings
- Adolescent
- Adult
- Aged
- Aged, 80 and over
- Child
- Child, Preschool
- Chromosome Aberrations
- Chromosomes, Human, Pair 11/genetics
- Chromosomes, Human, Pair 15/genetics
- Chromosomes, Human, Pair 17/genetics
- Cytogenetic Analysis
- Female
- Genetics, Population
- Geography
- Humans
- Karyotyping
- Leukemia, Myeloid, Acute/diagnosis
- Leukemia, Myeloid, Acute/epidemiology
- Leukemia, Myeloid, Acute/genetics
- Male
- Middle Aged
- Spain/epidemiology
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Affiliation(s)
- Magdalena Sierra
- Servicio de Hematología, Hospital Universitario de Salamanca, Paseo San Vicente 58-182, 37007 Salamanca, Spain
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Gutiérrez-Berzal J, Castellano E, Martín-Encabo S, Gutiérrez-Cianca N, Hernández JM, Santos E, Guerrero C. Characterization of p87C3G, a novel, truncated C3G isoform that is overexpressed in chronic myeloid leukemia and interacts with Bcr-Abl. Exp Cell Res 2006; 312:938-48. [PMID: 16443220 DOI: 10.1016/j.yexcr.2005.12.007] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.8] [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: 07/14/2005] [Revised: 12/05/2005] [Accepted: 12/06/2005] [Indexed: 11/17/2022]
Abstract
A novel C3G isoform, designated p87C3G, lacking the most amino terminal region of the cognate protein has been found to be overexpressed in two CML cell lines, K562 and Boff 210, both expressing Bcr-Abl p210. p87C3G expression is also highly augmented in patients diagnosed with chronic myeloid leukemia (CML) Ph+, in comparison with healthy individuals, and returns to basal levels after treatment with STI571. p87C3G co-immunoprecipitates with both CrkL and Bcr-Abl in CML cell lines and co-immunoprecipitation between p87C3G and Bcr-Abl was also detected in primary cells from CML patients. These interactions have been confirmed by in vitro pull down experiments. The interaction between p87C3G and Bcr-Abl involves the SH3-binding domain of p87C3G and the SH3 domain of Abl and depends mostly on the first polyproline region of p87C3G. Furthermore, we also demonstrated that p87C3G is phosphorylated in vitro by a Bcr-Abl-dependent mechanism. These results indicate that p87C3G overexpression is linked to CML phenotype and that p87C3G may exert productive functional interactions with Bcr-Abl signaling components suggesting the implication of this C3G isoform in the pathogenesis of chronic myeloid leukemia.
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MESH Headings
- Adaptor Proteins, Signal Transducing/metabolism
- Cell Line, Tumor
- Cloning, Molecular
- Fusion Proteins, bcr-abl
- Gene Expression Regulation, Leukemic
- Genes, abl/genetics
- Guanine Nucleotide-Releasing Factor 2/genetics
- Guanine Nucleotide-Releasing Factor 2/metabolism
- Humans
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/genetics
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/metabolism
- Leukocytes, Mononuclear/cytology
- Leukocytes, Mononuclear/metabolism
- Nuclear Proteins/metabolism
- Phosphorylation
- Protein Isoforms/genetics
- Protein Isoforms/metabolism
- Protein Structure, Tertiary
- Protein-Tyrosine Kinases/metabolism
- src Homology Domains
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Affiliation(s)
- Javier Gutiérrez-Berzal
- Centro de Investigación del Cáncer, IBMCC, Universidad de Salamanca-CSIC, Campus Miguel de Unamuno, 37007 Salamanca, Spain
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García-Sanz R, Hernández JM, Sureda A, García-Laraña J, Prósper F, Alegre A, Bárez A, Mateos MV, San Miguel JF. Pegylated liposomal doxorubicin, melphalan and prednisone therapy for elderly patients with multiple myeloma. Hematol Oncol 2006; 24:205-11. [PMID: 17006969 DOI: 10.1002/hon.790] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Melphalan & Prednisone (MP) is considered as the standard therapy for Multiple Myeloma (MM) patients not eligible for high-dose therapy. Here, we report the results of a phase I-II study to evaluate the feasibility and efficacy of the association of PLD to the conventional MP regimen during the first six cycles of the front-line therapy for untreated MM patients older than 70. Thirty patients were included in the study with a median age of 77 years (71-84) and a M/F ratio of 17/13. The phase I of the study demonstrated that the maximum tolerable dose of PLD in this setting was 30 mg/m(2), so it was the final dose evaluated in the study. Twenty-nine patients were valuable for response, which was: complete in 4 (14%) partial in 15 (52%) minor/no changes in 7 (24%) and progressive in 3 (10%). The median progression free survival (PFS) was 24 months. The median overall survival (OS) has not been reached yet, with a 3-year probability for OS and PFS of 52 and 37%, respectively. Haematological toxicity was frequent but usually weak/moderate (grades 1 & 2 of the WHO scale) and it was resolved only with dose delays. Infection was a relatively frequent event (30% of patients), but only in 4 cases it was of grade 3. No cases of palmar-plantar erythrodysesthesia were observed. In conclusion, pegylated liposomal doxorubicin can be safely added to the other chemotherapeutic drugs in the treatment of elderly MM patients, which can be very useful for patients in whom novel agents are not tolerated or inefficient.
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Affiliation(s)
- R García-Sanz
- University Hospital of Salamanca, Grupo Español de Mieloma, Red Española de Mieloma, Salamanca, Spain.
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Cruz-Zaragoza E, Barboza-Flores M, Chernov V, Meléndrez R, Ramos B S, Negrón-Mendoza A, Hernández JM, Murrieta H. Optical absorption and thermoluminescence in single NaCl:Cu crystals exposed to 60Co and UV light. Radiat Prot Dosimetry 2006; 119:102-5. [PMID: 16868016 DOI: 10.1093/rpd/nci612] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Optical absorption (OA) and thermally stimulated luminescence measurements were performed on NaCl:Cu+(0.04 and 0.08%) crystals blocks grown by the Czochralski technique. The NaCl:Cu+ crystals were exposed to gamma rays from a 60Co source (0.954-30 kGy) as well as UV radiation. The radiation-induced defects were mainly F, Cu- and Cu+ centres, with absorption bands located at 464, 256.7 and 236 nm, respectively. The absorption bands were found to be independent of the Cu impurity concentration. As the gamma-dose irradiation increased, the absorption band at 256.7 nm decreased while the band at 236.3 nm increased highly along with the 256.7 nm band. The F-centres produced at high gamma-radiation dose while thermally bleached showed an increase of the Cu+ OA bands with a simultaneous decrease of Cu- absorption band. The bleaching with F-light showed the participation of the F centre generated by gamma radiation on the ion valence changes of the doping impurity as well as on the TL phenomenon. The TL measurements in NaCl:Cu crystals with both impurity concentrations demonstrated that the Cu+ concentration has a strong influence on the intensity and shape of the glow peaks.
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Affiliation(s)
- E Cruz-Zaragoza
- Instituto de Ciencias Nucleares UNAM, A. Postal 70-543, México D.F., México.
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Coca S, Enrech S, Moreno García V, Sáez MA, Gutiérrez C, Colmenarejo A, Hernández JM, Pérez Piqueras J. Evaluation of the antitumor activity of interleukin-12 in an experimental murine model of colorectal cancer induced by 1,2 dimethyl-hydrazine (DMH). Rev Esp Enferm Dig 2005; 97:619-28. [PMID: 16266234 DOI: 10.4321/s1130-01082005000900002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
OBJECTIVE Interleukin 12 (IL-12) is a cytokine that may enhance the proliferation and cytotoxic activity of T lymphocytes and natural killer (NK) cells. A relationship between extensive intratumoral infiltration of NK cells and longer survival rates in colorectal cancer (CRC) patients was previously noted. Preliminary evidence suggests that the combined administration of IL-12 and IL-2 may produce additive immunomodulatory activity. The purpose of this study was to determine whether the systemic administration of IL-12 (+/- IL-2) may induce an immune response against CRC as induced by 1,2-dimethylhydrazine (DMH). METHODS Sixty-five 6-week-old Wistar rats were treated with weekly subcutaneous injections of DMH for 26 weeks at a dose of 20 mg/kg of body weight. Once tumoral induction was over, the animals were randomly allocated to one of three groups: I, control; II, intraperitoneal injections of IL-12; III, intraperitoneal injections of IL-12 combined with IL-2. At 30 weeks, all surviving animals were sacrificed. We studied the following parameters in each rat--number of tumors, size of tumors, and total tumoral volume. Tumor samples were studied using the monoclonal antibody CD 57 for the detection of NK cells. The extent of NK infiltration was classified as small, less than 50 NK cells/50 high-power field (HPF); moderate, 50 to 150 NK cells/50 HPF, and extensive, more than 150 NK cells/50 HPF. RESULTS Thirty-five rats died before completion of the carcinogen exposure, and 30 rats were randomized (10 each group). In group II, 2 animals died during treatment. All rats in groups I and III developed tumors, while in group II two rats (25%) were tumor-free. Moreover, only one rat in group II developed multiple neoplasms, in contrast with group I and group III, where six rats (60%) and seven rats (70%), respectively, had more than one tumor. We found statistically significant differences in the mean number of tumors found in group II when compared to group I (p = 0.028) and group III (p = 0.019). Other parameters measured, such as biggest tumor size and total tumoral volume were found to be lower in group II, although no statistical differences were found between groups. Only 10% of rats in group I showed moderated/extensive NK cell infiltration, vs. 60% of rats in group II (p = 0.077) and 70% in group III (p = 0.02). CONCLUSION The administration of DMH to rodents provides a reliable and consistent means of inducing CRC that may be suitable for the evaluation of anti-cancer therapies. Our findings suggest that IL-12 is effective against the development of experimental CRC. Its antineoplastic effect could be attributed to the stimulus of this cytokine on the intratumoral infiltration of NK cells.
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Affiliation(s)
- S Coca
- Department of Pathology, Hospital Central de la Defensa Gómez Ulla, School of Medicine, Universidad Complutense, Madrid, Spain.
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Lauzurica R, Pastor MC, Bayés B, Hernández JM, Bonet J, Llopis MA, Carrera L, Romero R. F2-Isoprostanes in Kidney Transplant Patients: Relationship With Inflammatory Markers. Transplant Proc 2005; 37:3842-3. [PMID: 16386558 DOI: 10.1016/j.transproceed.2005.09.106] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
This prospective study evaluated the relationship between inflammation and oxidative stress in a group of dialysis patients just before and 3 months after kidney transplantation and compared the results with a control group of healthy subjects. The oxidative stress markers determined were different F2-isoprostane isomers. The inflammatory markers included C-reactive protein, interleukin-6, tumor necrosis factor-alpha, and pregnancy-associated plasma protein A. Forty-three patients were the study group and 50 healthy subjects from a hospital blood bank as controls. The results showed levels of inflammatory and oxidative stress markers to be higher in the dialysis patients than in the control group, although they improved following kidney transplantation. Finally, significant correlations were observed between F2-isoprostane isomers and inflammatory markers.
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Affiliation(s)
- R Lauzurica
- Servicios de Nefrología y Bioquimica, Badalona, Spain.
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García JL, Robledo C, Lumbreras E, Flores T, Ramos L, Hernández JM. Analysis of chromosomal imbalances in an elderly woman with a giant cell tumour. Virchows Arch 2005; 448:95-9. [PMID: 16220295 DOI: 10.1007/s00428-005-0079-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [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: 05/17/2005] [Accepted: 08/25/2005] [Indexed: 11/26/2022]
Abstract
Giant cell tumour (GCT) remains one of the most obscure and intensely studied bone tumours. In an effort to resolve questions regarding the genesis and clinical outcome of GCT, advances have been made recently in the identification of chromosomal abnormalities implicated in the tumour. Fusion of telomeres is very frequent in GCT, and this process may be associated with chromosome instability and tumour development. However, little emphasis has been placed on chromosomal imbalances in the molecular characterization of this disease. Here, we report the case of an 83-year-old woman diagnosed with GCT where local recurrence was observed after 11 months of the resection. Cytogenetic studies of the GCT showed a modal number of 46 chromosomes with telomeric associations on 11p and dicentric chromosomes. Moreover, clonal abnormalities, such as del(17p) and losses of chromosomes 4, 13 and 18 and gains on chromosome 7, were also detected. Interestingly, comparative genomic hybridisation (CGH) analysis revealed chromosomal imbalances with gains on chromosomes 1p31-q44, 6q12-q23 and 12q15-q22. Thus, the use of CGH expanded the information obtained by conventional cytogenetics and demonstrated that chromosomal imbalances were associated with the recurrence of the GCT.
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Affiliation(s)
- Juan Luis García
- Centro de Investigación del Cáncer, Universidad de Salamanca-CSIC, Salamanca, Spain.
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Belinchón-Carmona M, Posada-De la Paz M, Artigas-Pallarés J, Canal-Bedia R, Díez-Cuervo A, Ferrari-Arroyo MJ, Fuentes-Biggi J, Hernández JM, Hervás-Zúñiga A, Idiazábal-Aletxa MA, Martos-Pérez J, Mulas F, Muñoz-Yunta JA, Palacios S, Tamarit J, Valdizán JR. [Best practice guidelines for research in autistic spectrum disorders]. Rev Neurol 2005; 41:371-7. [PMID: 16163659] [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: 05/04/2023]
Abstract
INTRODUCTION Achieving a better knowledge of autism and other pervasive developmental disorders known as autistic spectrum disorders (ASD), poses a major scientific challenge. These disorders are some of the earliest and most severe psychopathological disorders in infancy; they include an heterogeneous group of conditions; its prevalence rate seems to be continually increasing and they generate a significant social impact. AIMS AND DEVELOPMENT Nowadays, there is a current international agreement on the general requirements to be fulfilled by research projects and the priority areas to be considered when developing ASD high quality research. In Spain, although there are some established research groups with broad experience and expertise in these disorders, public funding opportunities and research development are still scarce. For this reason, the Study Group of the Instituto de Salud Carlos III has generated by consensus some Good Practice Guidelines for Research in ASD. CONCLUSIONS After comparing priorities and recommendations from international reference documents with the results obtained after having carried out an exhaustive bibliographic revision of articles published in autism in the last 30 years by Spanish authors, methodological and ethical recommendations are established. Finally, structural deficiencies to be corrected and emerging research initiatives to be supported are identified.
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Affiliation(s)
- M Belinchón-Carmona
- Departamento de Psicología Básica, Facultad de Psicología, Universidad Autónoma de Madrid, Centro de Psicología Aplicada, Madrid, Spain
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Díez-Cuervo A, Muñoz-Yunta JA, Fuentes-Biggi J, Canal-Bedia R, Idiazábal-Aletxa MA, Ferrari-Arroyo MJ, Mulas F, Tamarit J, Valdizán JR, Hervás-Zúñiga A, Artigas-Pallarés J, Belinchón-Carmona M, Hernández JM, Martos-Pérez J, Palacios S, Posada-De la Paz M. [Best practice guidelines for the diagnosis of autistic spectrum disorders]. Rev Neurol 2005; 41:299-310. [PMID: 16138288] [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: 05/04/2023]
Abstract
INTRODUCTION The autism spectrum disorder (ASD) diagnostic process requires expertise both in the knowledge of autism as in teamwork strategies with different professionals, often working in different clinic services, and with parents. AIM To recommend a consensus diagnostic procedure for ASD, that has been designed by the Study Group of the Instituto de Salud Carlos III. DEVELOPMENT The reports emphasize the need to obtain a complete clinical history, covering personal, family and psychosocial antecedents; detailing the basic areas affected in ASD--social interaction, communication and restricted patterns of behaviour, activities and interests. Diagnostic tests to be used as a routine in all cases are described and analysed--including both psychoeducational and biomedical tests. Also, tests indicated in cases with suspected identifiable physical disorders are covered, as well as those medical tests to be used for research purposes only. CONCLUSION The diagnostic procedure requires the implementation of a coordinated interdisciplinary assessment strategy, that needs to ensure the participation of professionals from very different fields in active collaboration with the family. Their role culminates in the preparation and delivery of a personalized report. Every diagnostic procedure needs to be accompanied by an action plan that includes immediate support to the person with ASD, as well as information to the family on resources and community initiatives in their living area.
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Fütterer A, Campanero MR, Leonardo E, Criado LM, Flores JM, Hernández JM, San Miguel JF, Martínez-A C. Dido gene expression alterations are implicated in the induction of hematological myeloid neoplasms. J Clin Invest 2005; 115:2351-62. [PMID: 16127461 PMCID: PMC1190370 DOI: 10.1172/jci24177] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.2] [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: 12/13/2004] [Accepted: 06/21/2005] [Indexed: 12/18/2022] Open
Abstract
The myelodysplastic/myeloproliferative diseases (MDS/MPDs) are a heterogeneous group of myeloid neoplasms that share characteristics with chronic myeloproliferative diseases and myelodysplastic syndromes. The broad spectrum of clinical manifestations makes MDS/MPDs extremely difficult to diagnose and treat, with a median survival time of 1-5 years. No single gene defect has been firmly associated with MDS/MPDs, and no animal models have been developed for these diseases. The association of deletions on chromosome 20q with myeloid malignancies suggests the presence of unidentified tumor suppressor genes in this region. Here we show that the recently identified death inducer-obliterator (Dido) gene gives rise to at least 3 polypeptides (Dido1, Dido2, and Dido3) through alternative splicing, and we map the human gene to the long arm of chromosome 20. We found that targeting of murine Dido caused a transplantable disease whose symptoms and signs suggested MDS/MPDs. Furthermore, 100% of human MDS/MPD patients analyzed showed Dido expression abnormalities, which we also found in other myeloid but not lymphoid neoplasms or in healthy donors. Our findings suggest that Dido might be one of the tumor suppressor genes at chromosome 20q and that the Dido-targeted mouse may be a suitable model for studying MDS/MPD diseases and testing new approaches to their diagnosis and treatment.
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Affiliation(s)
- Agnes Fütterer
- Department of Immunology and Oncology, Centro Nacional de Biotecnología/Consejo Superior de Investigaciones Científicas, Madrid, Spain
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Hernández JM, Artigas-Pallarés J, Martos-Pérez J, Palacios-Antón S, Fuentes-Biggi J, Belinchón-Carmona M, Canal-Bedia R, Díez-Cuervo A, Ferrari-Arroyo MJ, Hervás-Zúñiga A, Idiazábal-Alecha MA, Mulas F, Muñoz-Yunta JA, Tamarit J, Valdizán JR, Posada-De la Paz M. [Best practice guidelines for the early detection of Autistic Spectrum Disorders (I)]. Rev Neurol 2005; 41:237-45. [PMID: 16075402] [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: 05/03/2023]
Abstract
INTRODUCTION The interest in early detection of Autism Spectrum Disorders (ASD) lies in the accumulated evidence of the fact that an early customized intervention for children with an ASD and their families leads to an improvement of the child's prognosis in most cases. OBJECTIVE To establish criteria and procedures for early identification of children at risk of ASD and to facilitate full diagnostic assessment and prompt referral leading to adequate support. Early detection of ASD is extremely important, since early specific individualized treatment for the child and his or her family leads to long-term improvement in many children' prognosis. DEVELOPMENT Firstly, a critical appraisal of the situation of early detection of ASD in Spain is made after reviewing the scarce bibliography available on current screening and diagnostic practices in the country. Data generated by questionnaires received from 646 Spanish families is also taken into account. Secondly, the Study Group of the Instituto de Salud Carlos III recommends the screening and early diagnosis process to be followed, describing the necessary steps, the public services involved and the available screening and diagnostic tools. CONCLUSIONS The Study Group draws the main conclusions regarding the situation of ASD early detection in Spain, and makes a consensus proposal for the detection procedures, including routine developmental surveillance and identification of children at risk for ASD by using sensitive and specific assessment tools.
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Affiliation(s)
- J M Hernández
- Equipo Específico de Alteraciones Graves del Desarrollo, Consejería de Educación de la Comunidad Autónoma de Madrid, Madrid, Spain
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Sierra M, Hernández JM, García JL, Gutiérrez NC, Pérez JJ, Vidriales MB, Ramos F, Hernández JM, Romero M, González MB, Galende J, San Miguel JF. Hematological, immunophenotypic, and cytogenetic characteristics of acute myeloblastic leukemia with trisomy 11. ACTA ACUST UNITED AC 2005; 160:68-72. [PMID: 15949573 DOI: 10.1016/j.cancergencyto.2004.11.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [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: 04/06/2004] [Revised: 11/17/2004] [Accepted: 11/18/2004] [Indexed: 11/26/2022]
Abstract
We evaluated the incidence of trisomy 11 in acute myeloblastic leukemia (AML) and its correlation with the most relevant clinical, biological, and immunophenotypic disease characteristics in a total of 399 consecutive AML patients. Trisomy 11 was found in 15 patients (3.8%), in 3 of them as the sole abnormality. Median age was 68 years (range 48-87); 87% of patients were older than 60 years. Seven patients displayed multilineage dysplasia. Cytogenetics showed an association with trisomy 8 in six patients, and in five cases with a del(5q); nine patients had complex karyotypes. In all cases, in situ hybridization studies revealed three copies of the MLL gene, but no rearrangements or tandem duplications of MLL. Immunophenotypic analysis of blast cells showed a constant immature immunophenotypic profile with CD34 or CD117 expression (or both) in all cases analyzed. The complete remission rate was 43%; median survival time was only 2 months.
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MESH Headings
- Aged
- Aged, 80 and over
- Chromosomes, Human, Pair 11
- Female
- Humans
- Immunophenotyping
- In Situ Hybridization, Fluorescence
- Leukemia, Myeloid, Acute/blood
- Leukemia, Myeloid, Acute/genetics
- Leukemia, Myeloid, Acute/immunology
- Male
- Middle Aged
- Trisomy
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Affiliation(s)
- Magdalena Sierra
- Servicio de Hematología, Hospital Universitario de Salamanca and Centro de Investigación del Cáncer, Universidad de Salamanca-CSIC, Paseo San Vicente 58-182, 37007 Salamanca, Spain
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Hernández JM, Castilla C, Gutiérrez NC, Isidro IM, Delgado M, de las Rivas J, Fermiñán E, García JL, Ocio EM, del Cañizo MC, San Miguel JF. Mobilisation with G-CSF in healthy donors promotes a high but temporal deregulation of genes. Leukemia 2005; 19:1088-91. [PMID: 15830010 DOI: 10.1038/sj.leu.2403753] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Gutiérrez NC, López-Pérez R, Hernández JM, Isidro I, González B, Delgado M, Fermiñán E, García JL, Vázquez L, González M, San Miguel JF. Gene expression profile reveals deregulation of genes with relevant functions in the different subclasses of acute myeloid leukemia. Leukemia 2005; 19:402-9. [PMID: 15674361 DOI: 10.1038/sj.leu.2403625] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Bone marrow samples from 43 adult patients with de novo diagnosed acute myeloid leukemia (AML)--10 acute promyelocytic leukemias (APL) with t(15;17), four AML with inv(16), seven monocytic leukemias and 22 nonmonocytic leukemias--were analyzed using high-density oligonucleotide microarrays. Hierarchical clustering analysis segregated APL, AML with inv(16), monocytic leukemias and the remaining AML into separate groups. A set of only 21 genes was able to assign AML to one of these three classes: APL, inv(16) and other AML subtype without a specific translocation. Quantitative RT-PCR performed for 18 out of these predictor genes confirmed microarray results. APL expressed high levels of FGF13 and FGFR1 as well as two potent angiogenic factors, HGF and VEGF. AML with inv(16) showed an upregulation of MYH11 and a downregulation of a gene encoding a core-binding factor protein, RUNX3. Genes involved in cell adhesion represented the most altered functional category in monocytic leukemias. Two major groups emerged from the remaining 22 AML: cluster A with 10 samples and cluster B with 12. All the eight leukemias that were either refractory to treatment or that relapsed afterwards were assigned to cluster B. In the latter cluster, CD34 upregulation and serine proteases downregulation is consistent with a maturation arrest and lack of granulocytic differentiation.
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MESH Headings
- Adolescent
- Adult
- Aged
- Cluster Analysis
- Female
- Gene Expression Profiling/methods
- Gene Expression Regulation, Leukemic
- Humans
- Leukemia, Monocytic, Acute/genetics
- Leukemia, Myeloid, Acute/classification
- Leukemia, Myeloid, Acute/diagnosis
- Leukemia, Myeloid, Acute/genetics
- Leukemia, Promyelocytic, Acute/genetics
- Male
- Middle Aged
- Phylogeny
- Retrospective Studies
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Affiliation(s)
- N C Gutiérrez
- Servicio de Hematología, Hospital Universitario de Salamanca and Centro de Investigación del Cáncer, Universidad de Salamanca-CSIC, Spain
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Lahortiga I, Vázquez I, Belloni E, Román JP, Gasparini P, Novo FJ, Zudaire I, Pelicci PG, Hernández JM, Calasanz MJ, Odero MD. FISH analysis of hematological neoplasias with 1p36 rearrangements allows the definition of a cluster of 2.5 Mb included in the minimal region deleted in 1p36 deletion syndrome. Hum Genet 2005; 116:476-85. [PMID: 15744521 DOI: 10.1007/s00439-005-1268-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2004] [Accepted: 01/04/2005] [Indexed: 01/01/2023]
Abstract
Rearrangements in the distal region of the short arm of chromosome 1 are recurrent aberrations in a broad spectrum of human neoplasias. However, neither the location of the breakpoints (BP) on 1p36 nor the candidate genes have been fully determined. We have characterized, by fluorescence in situ hybridization (FISH), the BP in 26 patients with hematological neoplasias and 1p36 rearrangements in the G-banding karyotype. FISH allowed a better characterization of all samples analyzed. Nine cases (35%) showed reciprocal translocations, 15 (58%) unbalanced rearrangements, and two (7%) deletions. We describe two new recurrent aberrations. In 18 of the 26 cases analyzed the BP were located in band 1p36, which is 25.5 Mb long. In 14 of these 18 cases (78%) and without distinction between myeloid and lymphoid neoplasias, the BP clustered in a 2.5 Mb region located between 1p36.32 and the telomere. Interestingly, this region is contained in the 10.5 Mb cluster on 1p36.22-1pter defined in cases with 1p36 deletion syndrome. The 2.5 Mb region, located on 1p36.32-1pter, has a higher frequency of occurrence of tandem repeats and segmental duplications larger than 1 kb, when compared with the 25.5 Mb of the complete 1p36 band. This could explain its proneness for involvement in chromosomal rearrangements in hematological neoplasias.
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Affiliation(s)
- Idoya Lahortiga
- Laboratory of Genetics, Division of Oncology, Center for Applied Medical Research (CIMA), University of Navarra, Pio XII, 55, 31080, Pamplona, Spain.
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