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1.
JAMA Oncol ; 8(11): 1694-1696, 2022 11 01.
Artículo en Inglés | MEDLINE | ID: mdl-36136305

RESUMEN

This cohort study assesses the capacity of passive immunization and tixagevimab and cilgavimab to inhibit interaction between receptor-binding domains and angiotensin-converting enzyme 2 in patients with hemato-oncologic diseases.


Asunto(s)
COVID-19 , Neoplasias , Humanos , SARS-CoV-2 , COVID-19/prevención & control , Vacunación , Neoplasias/tratamiento farmacológico
3.
Eur J Cancer ; 165: 184-194, 2022 04.
Artículo en Inglés | MEDLINE | ID: mdl-35248840

RESUMEN

BACKGROUND: Due to potentially immune-escaping virus variants and waning immunity, a third SARS-CoV-2 vaccination dose is increasingly recommended. However, data in patients with cancer are limited. PATIENTS AND METHODS: We measured anti-SARS-CoV-2 spike protein antibody levels after the third vaccination dose in 439 patients with cancer and 41 health care workers (HCW) at an academic centre in Austria and a rural community hospital in Italy. Adverse events were retrieved from questionnaires. RESULTS: Overall, 439 patients and 41 HCW were included. SARS-CoV-2 infections were observed in 62/439 (14.1%) patients before vaccination and in 5/439 (1.1%) patients after ≥1 dose. Longitudinal analysis revealed a decrease of antibody levels between 3 and 6 months after second vaccination in patients with solid tumours (p < 0.001) and haematological malignancies without anti-B cell therapies (p < 0.001). After the third dose, anti-S levels increased compared to the first/second dose. Patients receiving B cell-targeted agents had lower antibody levels than patients with haematological malignancies undergoing other treatments (p < 0.001) or patients with solid tumours (p < 0.001). Moreover, anti-S levels correlated with CD19+ (B cell) and CD56+ (NK cell) counts in peripheral blood. The most frequent adverse events after the third dose were local pain (75/160, 46.9%), fatigue (25/160, 15.6%) and fever/chills (16/160, 10.0%). Patients with cancer had lower anti-S levels than HCW (p = 0.015). CONCLUSIONS: This study in patients with cancer shows improved antibody levels after the third vaccination dose at an acceptable side-effect profile. Lower antibody levels than in controls underline the need for further follow-up studies and dedicated trials.


Asunto(s)
COVID-19 , SARS-CoV-2 , COVID-19/prevención & control , Vacunas contra la COVID-19/efectos adversos , Personal de Salud , Humanos , Inmunidad , Estudios Retrospectivos , Vacunación
4.
Int J Cancer ; 150(3): 431-439, 2022 Feb 01.
Artículo en Inglés | MEDLINE | ID: mdl-34610144

RESUMEN

We retrospectively analyzed the epidemiological characteristics of cancer patients with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and their correlations with publicly available mobility data. Between 19 October 2020 and 28 February 2021, 4754 patient visits were carried out, and 1454 treatments have been applied at the Haemato-Oncology Day Hospital Merano. Additional measures to prevent local SARS-CoV-2 transmission included a specific questionnaire for coronavirus disease 2019 (COVID-19) symptoms as well as a SARS-CoV-2 real-time polymerase-chain reaction (RT-PCR) 2 days prior to any intravenous or subcutaneous therapy. Community mobility was assessed through publicly available mobile phone tracking data from Google; 106/719 (14.7%) cancer patients have been tested positive for SARS-CoV-2 by PCR during the second wave compared to 5/640 (0.8%) within the first wave (P < .001); 66/106 (62%) had solid tumors, and 40/106 (38%) had hematological malignancies; 90/106 (85%) patients received ongoing antitumor therapies. Mortality rate of COVID-19 positive cancer patients (7/106; 6.6%) was higher compared to the overall population (731/46 421; 1.6%; P < .001). Strict control measures at our department led to a significantly lower test positivity rate compared to the general population, resulting in a reduction of 58.5% of new SARS-CoV-2 cases. Over time, infection rates and community mobility correlated in the first and second wave after initiating and lifting restrictions. Our findings underscore the importance of strict preventive control measures including testing and contact tracing in vulnerable subpopulations such as cancer patients, particularly if social restriction policies are being lifted. Smartphone-based mobility data may help to guide policy makers to prevent a vulnerable population like cancer patients from virus transmission.


Asunto(s)
COVID-19/diagnóstico , Programas Obligatorios , Neoplasias/complicaciones , Cuarentena , SARS-CoV-2/aislamiento & purificación , Adulto , Anciano , Anciano de 80 o más Años , COVID-19/epidemiología , COVID-19/prevención & control , COVID-19/transmisión , Prueba de Ácido Nucleico para COVID-19 , Femenino , Humanos , Italia/epidemiología , Masculino , Persona de Mediana Edad , Neoplasias/epidemiología , Neoplasias/virología , Pandemias , Estudios Retrospectivos , SARS-CoV-2/genética , Viaje
5.
JAMA Oncol ; 8(1): 106-113, 2022 01 01.
Artículo en Inglés | MEDLINE | ID: mdl-34591965

RESUMEN

Importance: To our knowledge, little is known about antibody development after SARS-CoV-2 vaccination in immunocompromised individuals, such as patients with cancer. Objective: To determine whether hematooncological patients develop anti-SARS-CoV-2 antibodies after vaccination. Design, Setting, and Participants: This retrospective cohort study included 2 independent cohorts of patients who were treated for hematological and solid malignant tumors between October 2020 and May 2021, comprising 901 samples from 595 patients and 58 health care workers (HCWs). Serum samples were collected from patients who were treated at an academic center and a community hospital in a rural area and a control group of HCWs, all of whom received SARS-CoV-2 vaccination. Main Outcomes and Measures: Total anti-SARS-CoV-2 nucleocapsid (anti-NC) and antispike protein (anti-S) antibodies were measured retrospectively. Results: In total, 595 patients (320 women [53.8%] and 275 men [46.2%]; median [range] age, 67 [19-96] years) and 58 HCWs (40 women [69.0%] and 18 men [31.0%]; median [range] age, 42 [24-60] years) were included. Previous SARS-CoV-2 infection was documented in 43 of 595 (7.2%), while anti-NC antibodies that suggested previous infections were observed in 49 of 573 evaluable patients (8.6%). In both cohorts, anti-S antibody levels were higher in fully vaccinated patients compared with patients who received 1 dose. After the first vaccination, patients with hematological cancer who received B cell-targeting agents had lower anti-S levels (median, 1.6 AU/mL; range: 0-17 244 AU/mL) than patients who received other therapies (median, 191.6 AU/mL; range, 0-40 000; P < .001) or patients with solid tumors (median, 246.4 AU/mL; range, 0-40 000 AU/mL; P < .001). Anti-S levels after the first vaccination differed according to ongoing antineoplastic treatment modalities, with the lowest median levels in patients who received chemotherapy alone (157.7 AU/mL; range, 0-40 000 AU/mL) or in combination with immunotherapy (118.7 AU/mL; range, 14.1-38 727 AU/mL) and the highest levels in patients with no ongoing antineoplastic treatment (median, 634.3 AU/mL; range, 0-40 000 AU/mL; P = .01). Antibody levels after full immunization were higher in HCWs (median, 2500 U/mL; range, 485-2500 U/mL) than in patients with cancer (median, 117.0 U/mL; range, 0-2500 U/mL; P < .001). Conclusions and Relevance: In this cohort study of patients with hematooncological diseases and a control group of HCWs, anti-SARS-CoV-2 antibodies after vaccination could be detected in patients with cancer. Lower antibody levels compared with HCWs and differences in seroconversion in specific subgroups underscore the need for further studies on SARS-CoV-2 vaccination in patients with hematooncological disease.


Asunto(s)
COVID-19 , SARS-CoV-2 , Adulto , Anciano , Vacunas contra la COVID-19 , Estudios de Cohortes , Femenino , Personal de Salud , Humanos , Inmunidad Humoral , Masculino , Estudios Prospectivos , Estudios Retrospectivos , Vacunación
7.
Wien Klin Wochenschr ; 133(7-8): 359-363, 2021 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-33502609

RESUMEN

BACKGROUND: It has been assumed that cancer patients, especially those undergoing chemotherapy, are at increased risk for infection and severe illness from severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) compared to the general population. After the first alert message from the local healthcare service, a series of drastic measures were taken at our outpatient clinic to contain the spread of coronavirus disease 2019 (COVID-19). METHODS: In this retrospective study, all consecutive cancer outpatients completed a baseline SARS-CoV­2 test via real-time polymerase chain reaction (RT-PCR) from 15 March to 26 May 2020. In the later phase, after the peak of the pandemic, patients as well as healthcare workers were tested for anti-SARS-CoV­2 IgG antibodies. RESULTS: Between 15 March and 26 May 2020, 0.78% (N = 5/640) cancer patients tested positive for SARS-CoV­2 by RT-PCR. Between 22 June and 17 July 2020, anti-SARS-CoV­2 IgG antibodies were detected in 2 out of 250 (0.8%) cancer patients and 2 out of 36 (5.5%) healthcare workers. In only 1 out of 4 cancer patients with confirmed COVID-19 infection, could SARS-CoV­2 antibodies be detected. CONCLUSION: Our findings suggest that the majority of our patients and healthcare workers had not been infected with SARS-CoV­2 and rapidly implemented measures were effective. Maintenance of preventive measures should be continued until vaccines or specific treatments are available.


Asunto(s)
COVID-19 , Neoplasias , Anticuerpos Antivirales , Personal de Salud , Humanos , Inmunoglobulina G , Neoplasias/epidemiología , Pacientes Ambulatorios , Estudios Retrospectivos , SARS-CoV-2 , Estudios Seroepidemiológicos
8.
Acta Haematol ; 144(3): 259-263, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33040061

RESUMEN

INTRODUCTION: Treatment of relapsed/refractory (R/R) diffuse large B-cell lymphoma (DLBCL) represents a challenge for clinicians due to the lack of therapeutic options. DLBCL is not a rare disease in Italy. Pixantrone is an aza-anthracenedione, which, when compared to anthracyclines and anthracenediones, has a significantly reduced cardiotoxicity while maintaining good anti-tumor activity. However, the evidence on the use of pixantrone in the context of daily clinical practice is scarce. METHODS: We focused on the Italian patient subset of a larger European retrospective study (the PIXA Registry) to assess the efficacy and safety of pixantrone in a real-life DLBCL population. The molecular profile of the disease and its impact on drug efficacy were also assessed. RESULTS: Fifteen heavily pretreated DLBCL patients (13 males and 2 females) underwent treatment with pixantrone for a median of 2 cycles (range 1-6). Eight patients were bcl2 positive, 7 bcl6 positive, and 4 myc positive; 4 patients were diagnosed as double-hit, and 2 as triple-hit DLBCL. The overall response rate was 26.7% with a best response rate of 46.7%. Three patients had grade IV adverse events, which caused drug discontinuation. Four patients had 5 cases of grade III toxicities (1 thrombocytopenia, 1 stomatitis, and 3 neutropenia). One mild cardiac toxicity (sinus tachycardia for which no action was required) was possibly related to the study drug. CONCLUSION: Our data documented drug efficacy that is satisfactory for this high-risk subset of patients with an acceptable toxicity profile. Results indicate that pixantrone could be a significant treatment option in patients with R/R aggressive DLBCL treated in everyday clinical practice.


Asunto(s)
Isoquinolinas/uso terapéutico , Linfoma de Células B Grandes Difuso/tratamiento farmacológico , Inhibidores de Topoisomerasa II/uso terapéutico , Adulto , Anciano , Anciano de 80 o más Años , Estudios de Cohortes , Esquema de Medicación , Femenino , Enfermedades Genéticas Ligadas al Cromosoma X/etiología , Humanos , Isoquinolinas/efectos adversos , Italia , Masculino , Persona de Mediana Edad , Neutropenia/etiología , Sistema de Registros , Estudios Retrospectivos , Trombocitopenia/etiología , Inhibidores de Topoisomerasa II/efectos adversos , Resultado del Tratamiento
9.
ESMO Open ; 5(3): e000810, 2020 06.
Artículo en Inglés | MEDLINE | ID: mdl-32527730

RESUMEN

BACKGROUND: Optimal management of patients with cancer during COVID-19 pandemic is still pending. METHODS: Our patients were advised to maintain their scheduled appointments, and planned cancer treatment was continued without unnecessary delays in an outpatient setting. Additional strict preventive infection measures were rapidly implemented at our outpatient department. When COVID-19 test became widely available, universal testing of healthcare workers and vigorous screening of all patients coming to our facility for COVID-19 infection were performed by SARS-CoV-2 real-time reverse transcription PCR on rhinopharyngeal swab. RESULTS: As of the data cut-off on 9 April 2020, a total of 156 oncology patients with a median age of 67 (range 26-86) years and 63 haematology patients (median age 69 years, range 23-89) were screened for COVID-19 during active cancer treatment. Prevalence (1.8%; 4/219) of COVID-19 in patients with cancer was significantly higher compared with a respective control group of asymptomatic counterparts (p=0.018). Outcomes of COVID-19 positive patients were good, with only one observed death due to progression of advanced metastatic disease. CONCLUSION: Our data indicate that continuation of anticancer treatment in epidemic areas during the COVID-19 pandemic seems to be safe and feasible, if adequate and strict preventive measures are vigorously and successfully carried out.


Asunto(s)
Neoplasias , Adulto , Anciano , Anciano de 80 o más Años , Betacoronavirus , COVID-19 , China , Infecciones por Coronavirus , Humanos , Italia , Persona de Mediana Edad , Pandemias , Neumonía Viral , Estudios Retrospectivos , SARS-CoV-2 , Centros de Atención Terciaria
10.
JMIR Public Health Surveill ; 6(2): e19033, 2020 06 01.
Artículo en Inglés | MEDLINE | ID: mdl-32406855

RESUMEN

BACKGROUND: From the perspective of health care professionals, coronavirus disease (COVID-19) brings many challenges as well as opportunities for digital health care. One challenge is that health care professionals are at high risk of infection themselves. Therefore, in-person visits need to be reduced to an absolute minimum. Connected care solutions, including telehealth, remote patient monitoring, and secure communications between clinicians and their patients, may rapidly become the first choice in such public health emergencies. OBJECTIVE: The aim of the COVID-19 Caregiver Cockpit (C19CC) was to implement a free-of-charge, web- and app-based tool for patient assessment to assist health care professionals working in the COVID-19 environment. METHODS: Physicians in Argentina, Germany, Iran, Italy, Portugal, Switzerland, and the United States explained their challenges with COVID-19 patient care through unstructured interviews. Based on the collected feedback, the first version of the C19CC was built. In the second round of interviews, the application was presented to physicians, and more feedback was obtained. RESULTS: Physicians identified a number of different scenarios where telemedicine or connected care solutions could rapidly improve patient care. These scenarios included outpatient care, discharge management, remote tracking of patients with chronic diseases, as well as incorporating infected physicians under quarantine into telehealth services. CONCLUSIONS: The C19CC is the result of an agile and iterative development process that complements the work of physicians. It aims to improve the care and safety of people who are infected by COVID-19.


Asunto(s)
Infecciones por Coronavirus/terapia , Internet , Aplicaciones Móviles , Neumonía Viral/terapia , Telemedicina/métodos , Atención Ambulatoria/métodos , Actitud del Personal de Salud , COVID-19 , Infecciones por Coronavirus/epidemiología , Hospitalización , Humanos , Pandemias , Médicos/psicología , Neumonía Viral/epidemiología , Investigación Cualitativa , Telemedicina/organización & administración
11.
Ann Hematol ; 99(5): 1031-1040, 2020 May.
Artículo en Inglés | MEDLINE | ID: mdl-32140891

RESUMEN

High-dose chemotherapy followed by autologous stem cell transplantation (HD-ASCT) as well as the introduction of novel agents (NA) significantly improved survival for patients with multiple myeloma (MM). A total of 150 unselected newly diagnosed MM patients treated at our institution from 1998 to 2017 were retrospectively analyzed. Median age at diagnosis was 69 years (range 33-93 years) with a median follow-up of 48.6 months. The median overall survival (OS) for the entire cohort was 60.7 months (range 0.3-280.1). Patients who received frontline HD-ASCT (p < 0.01) or NA-based first-line treatment (p = 0.043) had a significantly better OS. According to the revised Myeloma Comorbidity Index (R-MCI), patients were defined as fit (36.5%), intermediate-fit (44.5%), or frail (19%) with a significant difference in OS between these categories (p < 0.01). Multivariate analysis revealed R-MCI as an independent prognostic factor for OS (p < 0.01). Presence of subclinical amyloid deposits (A+) was detected in 18 out of 66 patients (27.3%) and significantly correlated with a serum free light chain (sFLC) ratio ≥ 100 (p = 0.01) and bone marrow plasma cell infiltration > 60% (p = 0.04). Furthermore, patients with A+ had significantly worse OS compared with their counterparts (p = 0.048). Our results corroborate the efficacy of both early HD-ASCT and the use of new agents as initial therapy of MM patients in "real-world" daily clinical practice. The R-MCI is an easily applicable tool to stratify MM patients and may support treatment decisions. The prognostic value of subclinical amyloid deposition should be validated within prospective studies.


Asunto(s)
Antineoplásicos/administración & dosificación , Mieloma Múltiple/mortalidad , Mieloma Múltiple/terapia , Trasplante de Células Madre , Adulto , Anciano , Anciano de 80 o más Años , Autoinjertos , Supervivencia sin Enfermedad , Femenino , Humanos , Italia , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Tasa de Supervivencia
12.
Clin Cancer Res ; 25(13): 3839-3846, 2019 07 01.
Artículo en Inglés | MEDLINE | ID: mdl-30967420

RESUMEN

PURPOSE: Inflammation indexes and body mass index (BMI) are easily evaluated, predict survival, and are potentially modifiable. We evaluated the potential association of inflammatory indexes and BMI with the clinical outcome of patients with renal cell carcinoma (RCC) undergoing immune checkpoint inhibitor therapy. EXPERIMENTAL DESIGN: A prospective cohort of patients with metastatic RCC treated with nivolumab enrolled in the Italian Expanded Access Program from July 2015 through April 2016 was examined. Reference measures of inflammation were identified for neutrophil-to-lymphocyte ratio (NLR)

Asunto(s)
Carcinoma de Células Renales/mortalidad , Carcinoma de Células Renales/patología , Inflamación/patología , Neoplasias Renales/mortalidad , Neoplasias Renales/patología , Adulto , Anciano , Anciano de 80 o más Años , Antineoplásicos Inmunológicos/farmacología , Antineoplásicos Inmunológicos/uso terapéutico , Biomarcadores , Índice de Masa Corporal , Carcinoma de Células Renales/tratamiento farmacológico , Femenino , Humanos , Inflamación/diagnóstico , Estimación de Kaplan-Meier , Neoplasias Renales/tratamiento farmacológico , Masculino , Persona de Mediana Edad , Terapia Molecular Dirigida , Estadificación de Neoplasias , Nivolumab/farmacología , Nivolumab/uso terapéutico , Pronóstico , Índice de Severidad de la Enfermedad , Resultado del Tratamiento
13.
Breast Cancer Res Treat ; 149(2): 449-60, 2015 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-25555830

RESUMEN

The aim of this study was to evaluate the effectiveness of an additional, individualized, multi-component complementary medicine treatment offered to breast cancer patients at the Merano Hospital (South Tyrol) on health-related quality of life compared to patients receiving usual care only. A randomized pragmatic trial with two parallel arms was performed. Women with confirmed diagnoses of breast cancer were randomized (stratified by usual care treatment) to receive individualized complementary medicine (CM group) or usual care alone (usual care group). Both groups were allowed to use conventional treatment for breast cancer. Primary endpoint was the breast cancer-related quality of life FACT-B score at 6 months. For statistical analysis, we used analysis of covariance (with factors treatment, stratum, and baseline FACT-B score) and imputed missing FACT-B scores at 6 months with regression-based multiple imputation. A total of 275 patients were randomized between April 2011 and March 2012 to the CM group (n = 136, 56.3 ± 10.9 years of age) or the usual care group (n = 139, 56.0 ± 11.0). After 6 months from randomization, adjusted means for health-related quality of life were higher in the CM group (FACT-B score 107.9; 95 % CI 104.1-111.7) compared to the usual care group (102.2; 98.5-105.9) with an adjusted FACT-B score difference between groups of 5.7 (2.6-8.7, p < 0.001). Thus, an additional individualized and complex complementary medicine intervention improved quality of life of breast cancer patients compared to usual care alone. Further studies evaluating specific effects of treatment components should follow to optimize the treatment of breast cancer patients.


Asunto(s)
Neoplasias de la Mama/terapia , Terapias Complementarias , Calidad de Vida , Anciano , Neoplasias de la Mama/diagnóstico , Terapia Combinada , Terapias Complementarias/efectos adversos , Terapias Complementarias/métodos , Femenino , Humanos , Persona de Mediana Edad , Recurrencia Local de Neoplasia , Estadificación de Neoplasias , Factores de Riesgo , Resultado del Tratamiento
14.
Intern Emerg Med ; 10(4): 451-60, 2015 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-25585678

RESUMEN

Patients with essential thrombocythemia (ET) aged less than 60 years, who have not suffered a previous vascular event (low-risk patients), may develop thrombotic or hemorrhagic events. So far, it has not been possible to identify useful markers capable of predicting which of these patients are more likely to develop an event and therefore who needs to be treated. In the present study, we analysed the relationship between vascular complications and longitudinal blood counts of 136 low-risk ET patients taken over a sustained period of time (blood cells dynamism). After a median follow-up of 60 months, 45 out of 136 patients (33%) suffered 40 major thrombotic and 5 severe hemorrhagic complications. A total number of 5,781 blood counts were collected longitudinally. Thrombotic and hemorrhagic events were studied together (primary endpoint) but also separately (thrombotic alone = secondary endpoint; hemorrhagic alone = tertiary endpoint). The primary endpoint showed no significant association between platelet and WBC count at diagnosis and risk of any event (platelet, p = 0.797; WBC, p = 0.178), while Hb at baseline did show an association (p = 0.024). In the dynamic analysis with Cox regression model, where the blood count values were studied by time of follow-up, we observed that the risk for Hb was 1.49 (95% CI 1.13-1.97) for every increase of 1 g/dL, and that this risk then marginally decreased during follow-up. WBC was associated with an increased risk at baseline for every increase of 1 × 10(9)/L (hazard ratio (HR) 1.07, 95% CI 1.01-1.13, p = 0.034), the risk was stable during follow-up (HR 0.95, p = 0.187 at 60 months). Also, for each increment at baseline of 100 × 10(9) platelets/L, HR was increased by 1.08 (95% CI 0.97-1.22, p = 0.159) and decreases during follow-up. In conclusion, this study is the first to evaluate in ET low-risk patients, the risk of developing a thrombotic/hemorrhagic event considering blood counts over time. Overall our study shows that the risk changes over time. For example, the risk associated with WCC is not linear as previously reported. An interesting new finding is that PLT and even Hb contribute to the risk of developing vascular events. Future treatments should take into consideration these findings and aim to control all parameters over time. We believe this early study may help develop a dynamic analysis model to predict thrombosis in the single patient. Further studies are now warranted to further validate our findings.


Asunto(s)
Recuento de Células Sanguíneas , Hemorragia/etiología , Trombocitemia Esencial/sangre , Trombocitemia Esencial/complicaciones , Trombosis/etiología , Adolescente , Adulto , Supervivencia sin Enfermedad , Estudios de Seguimiento , Humanos , Persona de Mediana Edad , Modelos de Riesgos Proporcionales , Medición de Riesgo , Factores de Riesgo , Adulto Joven
15.
Ann Surg Oncol ; 19(13): 4330-6, 2012 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-22549289

RESUMEN

BACKGROUND: Characterized by its highly aggressive tumor biology, pancreatic cancer still remains a fatal diagnosis. The junctional adhesion molecule A (JAM-A) is a type I transmembrane glycoprotein, which recently has been shown to affect the prognosis of several human malignancies. METHODS: JAM-A antigen expression was investigated retrospectively by immunohistochemistry in paraffin-embedded primary tumor tissue samples from a series (n = 186) of consecutive patients with pancreatic adenocarcinoma. Survival was calculated by Kaplan-Meier curves. Parameters found to be of prognostic significance in univariate analysis were verified in a multivariate Cox regression model. RESULTS: Low expression of JAM-A was observed in 79 (42 %) of 186 pancreatic cancer specimens and was significantly associated with poor overall survival (P < 0.01). By univariate analysis, low expression of JAM-A was found to correlate with positive lymph node status (P = 0.02), the presence of distant metastasis (P = 0.05), and tumor grade (P = 0.04), suggesting it may be an important event involved in cancer progression. Furthermore, in the subgroup of patients with surgically resected pancreatic cancer, low expression of JAM-A significantly correlated with decreased progression-free survival (P < 0.01). Multivariate analysis revealed JAM-A to be an independent predictor of poor outcome. DISCUSSION: These findings suggest for the first time that low levels of JAM-A expression in pancreatic cancer are associated with poor clinical outcome. JAM-A may represents a target molecule for functional inactivation and serve as a novel biomarker of adverse prognosis in pancreatic cancer.


Asunto(s)
Adenocarcinoma/mortalidad , Carcinoma Ductal Pancreático/mortalidad , Moléculas de Adhesión Celular/metabolismo , Recurrencia Local de Neoplasia/mortalidad , Neoplasias Pancreáticas/mortalidad , Receptores de Superficie Celular/metabolismo , Adenocarcinoma/metabolismo , Adenocarcinoma/secundario , Adulto , Anciano , Anciano de 80 o más Años , Carcinoma Ductal Pancreático/metabolismo , Carcinoma Ductal Pancreático/secundario , Estudios de Casos y Controles , Femenino , Estudios de Seguimiento , Humanos , Metástasis Linfática , Masculino , Persona de Mediana Edad , Recurrencia Local de Neoplasia/metabolismo , Recurrencia Local de Neoplasia/patología , Estadificación de Neoplasias , Neoplasias Pancreáticas/metabolismo , Neoplasias Pancreáticas/patología , Pronóstico , Estudios Retrospectivos , Tasa de Supervivencia
16.
Diagn Mol Pathol ; 20(2): 90-3, 2011 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-21532493

RESUMEN

Activating mutations of K-ras have been described in approximately 40% of patients with colorectal cancer, and are associated with resistance to epidermal growth factor receptor-targeted antibodies, such as cetuximab and panitumumab. Cost-effective and easy methods to determine K-ras mutations are urgently needed. Samples from 31 patients were tested. In laboratory 1, a real-time polymerase chain reaction (PCR)-based technique was used. All samples (n=31) were additionally tested using a restriction fragment length polymorphism (RFLP) analysis in laboratory 2. All results were confirmed by direct sequencing. In the first run, a concordance of real-time PCR and RFLP was observed in 77.4% (24 of 31) of samples. After resampling and reevaluation, a concordance of 93.5% (30 of 31) could be achieved. One of 7 (6.5%) initial discordant cases showed a mutation using real-time PCR and no mutation using RFLP, but the mutation was confirmed by direct sequencing. Real-time PCR and RFLP can be considered as valid K-ras mutation detection techniques. However, in patient probes with lower amounts of tumor cells and wild-type K-ras, reanalysis of further tumor tissue is recommended.


Asunto(s)
Neoplasias Colorrectales/diagnóstico , Neoplasias Colorrectales/patología , Patología Molecular/métodos , Reacción en Cadena de la Polimerasa/métodos , Polimorfismo de Longitud del Fragmento de Restricción , Proteínas Proto-Oncogénicas/genética , Proteínas ras/genética , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Masculino , Persona de Mediana Edad , Proteínas Proto-Oncogénicas p21(ras) , Sensibilidad y Especificidad
17.
Onkologie ; 34(3): 139-46, 2011.
Artículo en Inglés | MEDLINE | ID: mdl-21358221

RESUMEN

Neuroendocrine tumor (NET) entities are rare malignancies. Higher awareness and improved diagnostic methods have led to an increasing incidence of these diseases, and most oncologists deal with such patients in their daily practice. The symposium on NETs that was held in Merano (Italy) in October 2009 was organized by the German-speaking European School of Oncology (dESO) and gathered specialists from different disciplines of transalpine countries to bring together experiences and observations regarding these tumors. The goal of the meeting and of this review was to illustrate both well- and poorly differentiated NETs and to encourage interdisciplinary approaches.


Asunto(s)
Antineoplásicos/uso terapéutico , Tumores Neuroendocrinos/diagnóstico , Tumores Neuroendocrinos/terapia , Humanos
18.
Hum Mol Genet ; 20(6): 1232-40, 2011 Mar 15.
Artículo en Inglés | MEDLINE | ID: mdl-21208937

RESUMEN

The genetic determinants of variation in iron status are actively sought, but remain incompletely understood. Meta-analysis of two genome-wide association (GWA) studies and replication in three independent cohorts was performed to identify genetic loci associated in the general population with serum levels of iron and markers of iron status, including transferrin, ferritin, soluble transferrin receptor (sTfR) and sTfR-ferritin index. We identified and replicated a novel association of a common variant in the type-2 transferrin receptor (TFR2) gene with iron levels, with effect sizes highly consistent across samples. In addition, we identified and replicated an association between the HFE locus and ferritin and confirmed previously reported associations with the TF, TMPRSS6 and HFE genes. The five replicated variants were tested for association with expression levels of the corresponding genes in a publicly available data set of human liver samples, and nominally statistically significant expression differences by genotype were observed for all genes, although only rs3811647 in the TF gene survived the Bonferroni correction for multiple testing. In addition, we measured for the first time the effects of the common variant in TMPRSS6, rs4820268, on hepcidin mRNA in peripheral blood (n = 83 individuals) and on hepcidin levels in urine (n = 529) and observed an association in the same direction, though only borderline significant. These functional findings require confirmation in further studies with larger sample sizes, but they suggest that common variants in TMPRSS6 could modify the hepcidin-iron feedback loop in clinically unaffected individuals, thus making them more susceptible to imbalances of iron homeostasis.


Asunto(s)
Variación Genética , Hierro/sangre , Receptores de Transferrina/genética , Adulto , Anciano , Anciano de 80 o más Años , Estudios Transversales , Femenino , Humanos , Masculino , Persona de Mediana Edad , Polimorfismo de Nucleótido Simple , Receptores de Transferrina/metabolismo , Adulto Joven
19.
Wien Klin Wochenschr ; 122(19-20): 558-66, 2010 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-20936366

RESUMEN

The Austrian chronic myeloid leukemia (CML) registry monitors individual disease courses, treatments applied, clinical outcome, and side effects of CML patients on a nationwide basis to provide data on the "real-life" situation and to complement the information and interpretation gained from the selected patient population observed in clinical trials. This report summarizes the Austrian CML registry data as of March 2009. A total of 179 patients have been registered with a median number of 1012 follow-up visits and median observation duration of 20 months. At diagnosis most patients (n = 163) were in chronic phase (early, late, and secondary), whereas only 4 were in advanced phase. A total of 137 patients were treated with tyrosine kinase inhibitors (TKIs), of which 14 received first and second generation TKIs sequentially. Other treatment modalities included chemotherapy or interferon and stem cell transplantation (SCT). Cumulative incidence rates for complete hematological responses (CHR) were 91.6% and 94.4% at 12 and 24 months, respectively, compared to cumulative incidence rates of complete cytogenetical response rates of 64% and 80% at these timepoints. A total of 5 patients progressed from chronic phase to accelerated (n = 3) and blastic phase (n = 2) while receiving imatinib standard dose. Estimated overall survival (OS) rate at 60 months was 90% and progression free survival (PFS) according to European Leukemia Net (ELN) failure definition was 58%.


Asunto(s)
Leucemia Mielógena Crónica BCR-ABL Positiva/mortalidad , Leucemia Mielógena Crónica BCR-ABL Positiva/terapia , Sistema de Registros/estadística & datos numéricos , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Austria/epidemiología , Femenino , Humanos , Leucemia Mielógena Crónica BCR-ABL Positiva/diagnóstico , Masculino , Persona de Mediana Edad , Prevalencia , Medición de Riesgo , Factores de Riesgo , Análisis de Supervivencia , Tasa de Supervivencia , Adulto Joven
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