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1.
Clin Exp Immunol ; 202(3): 263-272, 2020 12.
Artigo em Inglês | MEDLINE | ID: mdl-32812215

RESUMO

Kawasaki disease (KD) is an acute pediatric vasculitis of unknown etiology that can cause coronary artery aneurysms, and is the leading cause of acquired heart disease in children. We studied aspects of the innate and adaptive immune response in 17 acute KD children prior to treatment with intravenous immunoglobulin. Distinct patterns within the innate immune response correlated with specific clinical features. Proinflammatory myeloid dendritic cells (mDC) were abundant in four of 17 (23·5%) subjects who were older and manifested severe inflammation with clinical myocarditis and elevated hepatobiliary enzyme levels. Of the nine subjects with low levels of anti-inflammatory, tolerogenic mDC, six had enlarged cervical lymph nodes at diagnosis. In contrast, the adaptive immune repertoire varied greatly with no discernible patterns or associations with clinical features. Two subjects with aneurysms had numerous circulating CD8+ T cells. Ten subjects showed low CD4+ T cell numbers and seven subjects had CD4+ T cells in the normal range. CD4+ T cells expressed interleukin-7 receptor (IL-7R), suggesting repeated antigenic stimulation. Thymic-derived regulatory T cells (nTreg ) and peripherally induced regulatory T cells (iTreg ) were also enumerated, with the majority having the nTreg phenotype. Natural killer (NK) and NK T cell numbers were similar across all subjects. Taken together, the results of the immune monitoring suggest that KD may have multiple triggers that stimulate different arms of the innate and adaptive compartment in KD patients. Thus, it is possible that diverse antigens may participate in the pathogenesis of KD.


Assuntos
Antígenos/sangue , Células Dendríticas/metabolismo , Linfócitos/metabolismo , Síndrome de Linfonodos Mucocutâneos/sangue , Doença Aguda , Antígenos/imunologia , Criança , Pré-Escolar , Células Dendríticas/imunologia , Feminino , Humanos , Imunoglobulinas Intravenosas/administração & dosagem , Lactente , Linfócitos/imunologia , Masculino , Síndrome de Linfonodos Mucocutâneos/tratamento farmacológico
2.
BMC Palliat Care ; 19(1): 12, 2020 Jan 24.
Artigo em Inglês | MEDLINE | ID: mdl-31980015

RESUMO

BACKGROUND: Palliative care (PC) is increasingly recognized as essential for oncology care, and several academic societies strongly recommend integrating oncology and palliative care (IOP) in daily practice. Similarly, the Japanese government encouraged the implementation of IOP through the Cancer Control Act of 2007; however, its detailed progress remains unclear. Therefore, this cross-sectional nationwide survey was conducted to investigate the current status and hospital executive physicians' perception of IOP. METHODS: The questionnaire was developed based on IOP indicators with international consensus. It was distributed to executive physicians at all government-designated cancer hospitals (DCHs, n = 399) and matched non-DCHs (n = 478) in November 2017 and the results were compared. RESULTS: In total, 269 (67.4%) DCHs and 259 (54.2%) non-DCHs responded. The number of PC resources in DCHs was significantly higher than those in non-DCHs (e.g., full-time PC physicians and nurses, 52.8% vs. 14.0%, p < 0.001; availability of outpatient PC service ≥3 days per week, 47.6% vs. 20.7%, p < 0.001). Routine symptom screening was more frequently performed in DCHs than in non-DCHs (65.1% vs. 34.7%, p < 0.001). Automatic trigger for PC referral availability was limited (e.g., referral using time trigger, 14.9% vs. 15.3%, p = 0.700). Education and research opportunities were seriously limited in both types of hospitals. Most executive physicians regarded IOP as beneficial for their patients (95.9% vs. 94.7%, p = 0.163) and were willing to facilitate an early referral to PC services (54.7% vs. 60.0%, p < 0.569); however, the majority faced challenges to increase the number of full-time PC staff, and < 30% were planning to increase the staff members. CONCLUSIONS: This survey highlighted a considerable number of IOP indicators met, particularly in DCHs probably due to the government policy. Further efforts are needed to address the serious research/educational gaps.


Assuntos
Prestação Integrada de Cuidados de Saúde/tendências , Serviço Hospitalar de Oncologia/tendências , Cuidados Paliativos/métodos , Estudos Transversais , Prestação Integrada de Cuidados de Saúde/métodos , Prestação Integrada de Cuidados de Saúde/normas , Humanos , Japão , Serviço Hospitalar de Oncologia/normas , Cuidados Paliativos/normas , Cuidados Paliativos/tendências , Inquéritos e Questionários
3.
Br J Cancer ; 115(4): 411-9, 2016 Aug 09.
Artigo em Inglês | MEDLINE | ID: mdl-27415010

RESUMO

BACKGROUND: We aimed to analyse clinical and gene expression profiles to predict pathologic complete response and disease-free survival using two consecutive, prospective, preoperative chemotherapy trial cohorts. METHODS: Clinicopathological and gene expression data were evaluated in a cohort from two consecutive phase II preoperative studies that included patients with stage IIA-IIIC breast cancer of all subtypes. Analysed specimens were obtained before preoperative chemotherapy, and cDNA microarray analyses were performed using the Affymetrix Gene Chip U133 plus 2.0. RESULTS: Between December 2005 and December 2010, 122 patients were analysed. The pathologic complete response rate was significantly higher in HER2+ and HR-/HER2- cancers. Age, pathologic complete response, HR-/HER2- status, and lymph node positivity (⩾4) were significant poor prognostic factors for disease-free survival. For the cDNA microarray analyses, sufficient tumour samples were available from 78 of the 107 patients (73%). An 8-gene signature predictive of pathologic complete response and a 17-gene signature predictive of prognosis were identified. Patients were categorised into low-risk (n=45) and high-risk groups (n=33) (HR 70.0, P=0.004). CONCLUSIONS: This study yielded preliminary data on the expression of specific genes predicting pathologic complete response and disease-free survival in a cohort of chemonaïve breast cancer patients. Further validation may distinguish those who would benefit most from perioperative chemotherapy as well as those needing further intervention.


Assuntos
Neoplasias da Mama/genética , Carcinoma/genética , RNA Mensageiro/metabolismo , Adulto , Idoso , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias da Mama/tratamento farmacológico , Neoplasias da Mama/metabolismo , Neoplasias da Mama/patologia , Carcinoma/tratamento farmacológico , Carcinoma/metabolismo , Carcinoma/patologia , Ciclofosfamida/administração & dosagem , Intervalo Livre de Doença , Docetaxel , Epirubicina/administração & dosagem , Feminino , Fluoruracila/administração & dosagem , Humanos , Pessoa de Meia-Idade , Terapia Neoadjuvante , Estadiamento de Neoplasias , Paclitaxel/administração & dosagem , Prognóstico , Estudos Prospectivos , Receptor ErbB-2/metabolismo , Receptores de Estrogênio/metabolismo , Receptores de Progesterona/metabolismo , Taxoides/administração & dosagem , Análise Serial de Tecidos , Transcriptoma , Trastuzumab/administração & dosagem , Resultado do Tratamento , Adulto Jovem
4.
Ann Oncol ; 25(10): 1973-1979, 2014 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-25009009

RESUMO

BACKGROUND: Triple-negative breast cancer (TNBC) patients are a poor prognostic subgroup, and currently, there is no biomarker for targeted therapy. PATIENTS AND METHODS: Tissue samples were obtained from 75 TNBC patients with lymph-node metastases who had received adjuvant chemotherapy. We examined 11 biomarkers, including PIK3CA and AKT1mutation, with regard to event-free survival (EFS) and overall survival (OS) of patients. RESULTS: In the tumor tissues, phospho-AKT (pAKT) expression was significantly related to HER4 expression. Expression of each of these biomarkers was significantly related to longer EFS (P = 0.024 and 0.03, respectively). pERK expression was also a good prognostic factor regarding EFS and OS in TNBC (P = 0.002 and 0.006, respectively). We also identified a correlation between epidermal growth factor receptor positivity and insulin-like growth factor receptor type 1 positivity (P = 0.001). pERK and T-stage (1-3 versus >3) were independent good prognostic factors by multivariate analysis. CONCLUSIONS: We determined that tumors expressing pAKT or pERK are a good prognostic subtype in node-positive TNBC. Different targeted therapies may be necessary for TNBC that involves activation of PI3K/AKT or MAPK pathways.


Assuntos
Fosfatidilinositol 3-Quinases/biossíntese , Prognóstico , Proteínas Proto-Oncogênicas c-akt/biossíntese , Neoplasias de Mama Triplo Negativas/genética , Neoplasias de Mama Triplo Negativas/terapia , Adulto , Idoso , Biomarcadores Tumorais/biossíntese , Biomarcadores Tumorais/genética , Classe I de Fosfatidilinositol 3-Quinases , Intervalo Livre de Doença , Feminino , Regulação Neoplásica da Expressão Gênica , Humanos , Metástase Linfática , Pessoa de Meia-Idade , Quinases de Proteína Quinase Ativadas por Mitógeno/genética , Estadiamento de Neoplasias , Fosfatidilinositol 3-Quinases/genética , Proteínas Proto-Oncogênicas c-akt/genética , Receptor ErbB-2/genética , Receptor ErbB-4/biossíntese , Neoplasias de Mama Triplo Negativas/patologia
5.
Breast Cancer Res Treat ; 145(1): 143-53, 2014 May.
Artigo em Inglês | MEDLINE | ID: mdl-24682674

RESUMO

We investigated the disease-free survival (DFS) of HER2-positive primary breast cancer patients treated with neoadjuvant chemotherapy plus trastuzumab, as well as predictive factors for DFS and pathologic response. Data from 829 female patients treated between 2001 and 2010 were collected from 38 institutions in Japan. Predictive factors were evaluated using multivariate analyses. The 3-year DFS rate was 87 % [95 % confidence interval (CI) 85-90]. The pathologic complete response (pCR: ypT0/is + ypN0) rate was 51 %. The pCR rate was higher in the ER/PgR-negative patients than in the ER/PgR-positive patients (64 vs. 36 %, P < 0.001). Patients with pCR showed a higher DFS rate than patients without pCR (93 vs. 82 %, P < 0.001). Multivariate analysis revealed three independent predictors for poorer DFS: advanced nodal stage [hazard ratio (HR) 2.63, 95 % CI 1.36-5.21, P = 0.004 for cN2-3 vs. cN0], histological/nuclear grade 3 (HR 1.81, 95 % CI 1.15-2.91, P = 0.011), and non-pCR (HR 1.98, 95 % CI 1.22-3.24, P = 0.005). In the ER/PgR-negative dataset, non-pCR (HR 2.63, 95 % CI 1.43-4.90, P = 0.002) and clinical tumor stage (HR 2.20, 95 % CI 1.16-4.20, P = 0.017 for cT3-4 vs. cT1-2) were independent predictors for DFS, and in the ER/PgR-positive dataset, histological grade of 3 (HR 3.09, 95 % CI 1.48-6.62, P = 0.003), clinical nodal stage (HR 4.26, 95 % CI 1.53-13.14, P = 0.005 for cN2-3 vs. cN0), and young age (HR 2.40, 95 % CI 1.12-4.94, P = 0.026 for ≤40 vs. >40) were negative predictors for DFS. Strict pCR (ypT0 + ypN0) was an independent predictor for DFS in both the ER/PgR-negative and -positive datasets (HR 2.66, 95 % CI 1.31-5.97, P = 0.006 and HR 3.86, 95 % CI 1.13-24.21, P = 0.029, respectively). These results may help assure a more accurate prognosis and personalized treatment for HER2-positive breast cancer patients.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias da Mama/tratamento farmacológico , Neoplasias da Mama/mortalidade , Terapia Neoadjuvante , Receptor ErbB-2/metabolismo , Anticorpos Monoclonais Humanizados/uso terapêutico , Intervalo Livre de Doença , Feminino , Humanos , Prognóstico , Estudos Retrospectivos , Trastuzumab
6.
BJOG ; 121(11): 1431-8, 2014 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-24597833

RESUMO

OBJECTIVE: To characterise the obstetrical management and outcomes in a series of women with a history of Kawasaki disease (KD) in childhood. DESIGN: Retrospective case series. SETTING: Tertiary healthcare setting in the USA. POPULATION: Women with a history of KD in childhood. METHODS: Women completed a detailed health questionnaire and participated in research imaging studies as part of the San Diego Adult KD Collaborative Study. MAIN OUTCOME MEASURES: Obstetrical management, complications during pregnancy and delivery, and infant outcomes. RESULTS: Ten women with a history of KD in childhood carried a total of 21 pregnancies to term. There were no cardiovascular complications during labour and delivery despite important cardiovascular abnormalities in four of the ten subjects. Pregnancy was complicated by pre-eclampsia and the post-partum course was complicated by haemorrhage in one subject each. Two of the 21 progeny subsequently developed KD. CONCLUSIONS: Women with important cardiovascular sequelae from KD in childhood should be managed by a team that includes both a maternal-fetal medicine specialist and a cardiologist. Pre-pregnancy counselling should include delineation of the woman's current functional and structural cardiovascular status and appropriate adjustment of medications, but excellent outcomes are possible with appropriate care. Review of the English and Japanese literature on KD and pregnancy revealed the occurrence of myocardial infarction during pregnancy in women with missed KD and aneurysms that were not diagnosed until their acute event. Our study highlights the need for counselling with regard to the increased genetic risk of KD in offspring born to these mothers.


Assuntos
Calcinose/etiologia , Parto Obstétrico/métodos , Mães , Síndrome de Linfonodos Mucocutâneos/complicações , Pré-Eclâmpsia/etiologia , Complicações Cardiovasculares na Gravidez/etiologia , Adulto , Calcinose/patologia , Ecocardiografia , Feminino , Humanos , Angiografia por Ressonância Magnética , Pessoa de Meia-Idade , Síndrome de Linfonodos Mucocutâneos/patologia , Síndrome de Linfonodos Mucocutâneos/terapia , Pré-Eclâmpsia/patologia , Gravidez , Complicações Cardiovasculares na Gravidez/patologia , Complicações Cardiovasculares na Gravidez/terapia , Resultado da Gravidez , Estudos Retrospectivos , Inquéritos e Questionários , Tomografia Computadorizada por Raios X
7.
Curr Oncol ; 21(2): 84-90, 2014 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-24764697

RESUMO

BACKGROUND: Prediction of prognosis is important for patients so that they can make the most of the rest of their lives. Oncologists could predict survival, but the accuracy of such predictions is unclear. METHODS: In this observational prospective cohort study, 14 oncologists treating 9 major adult solid malignancies were asked to complete questionnaires predicting survival based on performance status, oral intake, and other clinical factors when patients experienced progressive disease after standard chemotherapies. Clinically predicted survival (cps) was calculated by the oncologists from the date of progressive disease to the predicted date of death. Actual survival (as) was compared with cps using Kaplan-Meier survival curves, and factors affecting inaccurate prediction were determined by logistic regression analysis. The prediction of survival time was considered accurate when the cps/as ratio was between 0.67 and 1.33. RESULTS: The study cohort consisted of 75 patients. Median cps was 120 days (interquartile range: 60-180 days), and median as was 121 days (interquartile range: 40-234 days). The participating oncologists accurately predicted as within a 33% range 36% of the time; the survival time was overestimated 36% of time and underestimated 28% of the time. The factors affecting the accuracy of the survival estimate were the experience of the oncologist, patient age, and information given about the palliative care unit. CONCLUSIONS: Prediction of cps was accurate for just slightly more than one third of all patients in this study. Additional investigation of putative prognostic factors with a larger sample size is warranted.

8.
Clin Exp Immunol ; 174(3): 337-44, 2013 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-23901839

RESUMO

The expansion of regulatory T cells (Treg ) controls inflammation in children with acute Kawasaki disease (KD). Blockade of tumour necrosis factor (TNF)-α is an emerging therapy for KD patients with refractory inflammation, but there is concern that this therapy could impede the host immune regulation. To define the effect of TNF-α blockade, we conducted ex-vivo immune-monitoring in KD subjects who participated in a randomized, double-blind, placebo-controlled clinical trial of the addition of infliximab to standard intravenous immunoglobulin (IVIG) therapy. We enumerated circulating myeloid and plasmocytoid dendritic cells (DC), regulatory T cells (Treg ) and memory T cells (Tmem ) in 14 consecutive, unselected KD patients (seven treated with IVIG, seven with IVIG + infliximab) at three time-points: (i) acute phase prior to treatment, (ii) subacute phase and (iii) convalescent phase. Myeloid DC (mDC), but not plasmacytoid DC (pDC), were numerous in the peripheral blood in acute KD subjects and decreased in the subacute phase in both IVIG(-) and IVIG (+) infliximab-treated groups. The co-stimulatory molecule for antigen presentation to T cells and CD86 decreased in mDC from acute to subacute time-points in both treatment groups, but not in the single patient who developed coronary artery aneurysms. We also defined tolerogenic mDC that expand in the subacute phase of KD not impaired by infliximab treatment. Treg and Tmem expanded after treatment with no significant differences between the two groups. Treatment of KD patients with infliximab does not adversely affect generation of tolerogenic mDC or the development of T cell regulation and memory.


Assuntos
Anticorpos Monoclonais/uso terapêutico , Células Dendríticas/imunologia , Imunoglobulinas Intravenosas/uso terapêutico , Síndrome de Linfonodos Mucocutâneos/tratamento farmacológico , Linfócitos T Reguladores/imunologia , Anti-Inflamatórios não Esteroides/efeitos adversos , Anti-Inflamatórios não Esteroides/uso terapêutico , Anticorpos Monoclonais/efeitos adversos , Antígeno B7-2 , Linfócitos T CD8-Positivos/imunologia , Criança , Pré-Escolar , Aneurisma Coronário/induzido quimicamente , Células Dendríticas/citologia , Método Duplo-Cego , Feminino , Humanos , Fatores Imunológicos/uso terapêutico , Memória Imunológica , Lactente , Inflamação/imunologia , Infliximab , Contagem de Linfócitos , Masculino , Células Mieloides/citologia , Células Mieloides/imunologia , Placebos , Linfócitos T Reguladores/citologia , Fator de Necrose Tumoral alfa/antagonistas & inibidores
10.
Br J Cancer ; 104(2): 241-7, 2011 Jan 18.
Artigo em Inglês | MEDLINE | ID: mdl-21157447

RESUMO

BACKGROUND: To elucidate the incidence and mechanisms of sunitinib-induced thyroid atrophy, we investigated serial volumetric and functional changes, and evaluated histological changes of the thyroid gland in metastatic renal cell carcinoma patients who received sunitinib. METHODS: Thyroid volume (by computed tomography volumetry) and thyroid function were measured at baseline, during the treatment, and at post-treatment periods. Histological evaluation of the thyroid gland was performed in four autopsied patients. RESULTS: The median reduction rate in thyroid volume at last evaluation during sunitinib treatment was 30% in all 17 patients. The incidence of hypothyroidism during sunitinib treatment was significantly higher in the high reduction rate group (n=8; more than 50% reduction in volume) than in the low reduction rate group (n=9; less than 50% reduction in volume). Half of the patients in the high reduction rate group exhibited a transient thyroid-stimulating hormone suppression, suggesting thyrotoxicosis during sunitinib treatment. Histological evaluation demonstrated atrophy of thyroid follicles and degeneration of follicular epithelial cells without critical diminution of vascular volume in the thyroid gland. CONCLUSION: Thyroid atrophy is frequently observed following sunitinib treatment and may be brought about by sunitinib-induced thyrotoxicosis or the direct effects of sunitinib that lead to degeneration of thyroid follicular cells.


Assuntos
Antineoplásicos/efeitos adversos , Carcinoma de Células Renais/tratamento farmacológico , Indóis/efeitos adversos , Neoplasias Renais/tratamento farmacológico , Pirróis/efeitos adversos , Glândula Tireoide/efeitos dos fármacos , Adulto , Idoso , Antineoplásicos/uso terapêutico , Carcinoma de Células Renais/patologia , Estudos de Coortes , Feminino , Humanos , Indóis/uso terapêutico , Neoplasias Renais/patologia , Masculino , Metástase Neoplásica , Pirróis/uso terapêutico , Sunitinibe , Testes de Função Tireóidea , Glândula Tireoide/diagnóstico por imagem , Glândula Tireoide/patologia , Glândula Tireoide/fisiopatologia , Tomografia Computadorizada por Raios X
11.
Ann Oncol ; 22(6): 1451-1456, 2011 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-21119030

RESUMO

BACKGROUND: This study aimed to examine the quality in oncology registration trials for new drug application (NDA) or supplemental new drug application (sNDA) as extensions of the indications for use in Japan based on Good Clinical Practice (GCP) audit findings. MATERIALS AND METHODS: We collected audit reports of on-site GCP inspections for registration trials in 383 NDAs or sNDAs that were reviewed by the Pharmaceuticals and Medical Devices Agency between the fiscal years 2004 and 2009. RESULTS: Among the 40 audits for oncology drug applications, the frequencies at which one or more deficiencies ascribed to institution, investigator, sponsor, and institutional review board were found to be 15 (37.5%), 13 (32.5%), 21 (52.5%), and 10 (25.0%), respectively. The exclusion of patients from the review objective due to serious violations of GCP in 40 audits for oncology drug applications was observed in 2 (5.0%) cases, whereas that in the remaining 343 audits for other drug applications was observed in 40 (11.7%) cases. CONCLUSION: The overall compliance of GCP in oncology registration trials was moderately better than that in registration trials for other diseases, although there was no statistically significant difference between them.


Assuntos
Comitês de Monitoramento de Dados de Ensaios Clínicos/normas , Ensaios Clínicos como Assunto/normas , Aprovação de Drogas , Neoplasias , Antineoplásicos/uso terapêutico , Auditoria Clínica , Comitês de Ética em Pesquisa , Humanos , Japão , Neoplasias/tratamento farmacológico
12.
Ann Oncol ; 22(6): 1302-1307, 2011 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-21109570

RESUMO

BACKGROUND: Antibody-dependent-mediated cytotoxicity (ADCC) is one of the modes of action for trastuzumab. Recent data have suggested that fragment C γ receptor (FcγR) polymorphisms have an effect on ADCC. This prospective phase II trial aimed to evaluate whether these polymorphisms are associated with clinical efficacies in patients who received trastuzumab. PATIENTS AND METHODS: Patients in a neoadjuvant (N) setting received Adriamycin and cyclophosphamide followed by weekly paclitaxel/trastuzumab. Patients in a metastatic (M) setting received single trastuzumab until progression. In total, 384 distinct single nucleotide polymorphisms of different FcγR, HER2, and fucosyltransferase loci were assessed. RESULTS: Fifteen operable and 35 metastatic HER2-positive breast cancer patients were enrolled in each of the N and M settings, respectively. The FcγR2A-131 H/H genotype was significantly correlated with the pathologically documented response (pathological response) (P = 0.015) and the objective response (P = 0.043). The FcγR3A-158 V/V genotype was not correlated with the pathological response, but exhibited a tendency to be correlated with the objective response. Patients with the FcγR2A-131 H/H genotype had significantly longer progression-free survival in the M setting (P = 0.034). CONCLUSION: The FcγR2A-131 H/H polymorphism predicted the pathological response to trastuzumab-based neoadjuvant chemotherapy in early-stage breast cancer, and the objective response to trastuzumab in metastatic breast cancer.


Assuntos
Anticorpos Monoclonais Humanizados/uso terapêutico , Neoplasias da Mama/tratamento farmacológico , Terapia Neoadjuvante , Polimorfismo de Nucleotídeo Único , Receptor ErbB-2/biossíntese , Receptores de IgG/genética , Adulto , Idoso , Citotoxicidade Celular Dependente de Anticorpos/imunologia , Antineoplásicos/uso terapêutico , Neoplasias da Mama/genética , Neoplasias da Mama/imunologia , Neoplasias da Mama/patologia , Feminino , Humanos , Pessoa de Meia-Idade , Metástase Neoplásica , Receptor ErbB-2/genética , Receptores de IgG/imunologia , Trastuzumab , Resultado do Tratamento
13.
Eur Respir J ; 38(6): 1425-30, 2011 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-21565923

RESUMO

This study retrospectively compared long-term outcomes between two groups of breast cancer patients with malignant pleural effusion (MPE): those receiving only systemic therapy (ST) and those receiving ST following initial pleurodesis (P-ST). We identified 180 breast cancer patients from the National Cancer Center Hospital (Tokyo, Japan) database who had received ST and P-ST as an initial treatment for MPE between 1997 and 2008 for study inclusion. Pleural progression-free survival (PPFS) was defined as the time from ST in the ST group and from pleurodesis in the P-ST group to the first observation of pleural progression or death from any cause. Of the 180 patients, 78 received ST and 102 received P-ST after MPE diagnosis. Median duration of follow-up was 12.7 months (range 0.9-80.1 months). Median PPFS for the ST group and the P-ST group was 4.1 and 8.5 months, respectively. The difference in PPFS between the two groups was statistically significant (p < 0.001) and the hazard ratio after adjusting for prognostic factors in the P-ST group relative to the ST group was 0.24. Our results suggest that the efficacy of P-ST may be superior to that of ST alone with respect to local control of pleural effusions in breast cancer patients.


Assuntos
Neoplasias da Mama/tratamento farmacológico , Carcinoma/tratamento farmacológico , Derrame Pleural Maligno/terapia , Pleurodese , Adulto , Idoso , Idoso de 80 Anos ou mais , Antineoplásicos/uso terapêutico , Neoplasias da Mama/mortalidade , Carcinoma/mortalidade , Progressão da Doença , Feminino , Humanos , Pessoa de Meia-Idade , Derrame Pleural Maligno/mortalidade , Estudos Retrospectivos , Resultado do Tratamento , Adulto Jovem
14.
J Exp Med ; 191(11): 1869-79, 2000 Jun 05.
Artigo em Inglês | MEDLINE | ID: mdl-10839803

RESUMO

The activation of downstream signaling pathways of both T cell receptor (TCR) and interleukin 4 receptor (IL-4R) is essential for T helper type 2 (Th2) cell development, which is central to understanding immune responses against helminthic parasites and in allergic and autoimmune diseases. However, little is known about how these two distinct signaling pathways cooperate with each other to induce Th2 cells. Here, we show that successful Th2 cell development depends on the effectiveness of TCR-induced activation of calcineurin. An inhibitor of calcineurin activation, FK506, inhibited the in vitro anti-TCR-induced Th2 cell generation in a dose-dependent manner. Furthermore, the development of Th2 cells was significantly impaired in naive T cells from dominant-negative calcineurin Aalpha transgenic mice, whereas that of Th1 cells was less affected. Efficient calcineurin activation in naive T cells upregulated Janus kinase (Jak)3 transcription and the amount of protein. The generation of Th2 cells induced in vitro by anti-TCR stimulation was inhibited significantly by the presence of Jak3 antisense oligonucleotides, suggesting that the Jak3 upregulation is an important event for the Th2 cell development. Interestingly, signal transducer and activator of transcription (STAT)5 became physically and functionally associated with the IL-4R in the anti-TCR-activated developing Th2 cells that received efficient calcineurin activation, and also in established cloned Th2 cells. In either cell population, the inhibition of STAT5 activation resulted in a diminished IL-4-induced proliferation. Moreover, our results suggest that IL-4-induced STAT5 activation is required for the expansion process of developing Th2 cells. Thus, Th2 cell development is controlled by TCR-mediated activation of the Ca(2+)/calcineurin pathway, at least in part, by modifying the functional structure of the IL-4R signaling complex.


Assuntos
Calcineurina/metabolismo , Proteínas do Leite , Receptores de Antígenos de Linfócitos T alfa-beta/metabolismo , Receptores de Interleucina-4/metabolismo , Transdução de Sinais , Células Th2/metabolismo , Sequência de Aminoácidos , Animais , Linfócitos T CD4-Positivos/imunologia , Linfócitos T CD4-Positivos/metabolismo , Calcineurina/genética , Diferenciação Celular , Divisão Celular , Células Cultivadas , Proteínas de Ligação a DNA/metabolismo , Expressão Gênica , Interleucina-4/metabolismo , Janus Quinase 3 , Ativação Linfocitária , Camundongos , Camundongos Endogâmicos BALB C , Camundongos Endogâmicos C57BL , Camundongos Transgênicos , Dados de Sequência Molecular , Oligodesoxirribonucleotídeos Antissenso , Proteínas Tirosina Quinases/genética , Proteínas Tirosina Quinases/metabolismo , Receptores de Antígenos de Linfócitos T alfa-beta/genética , Receptores de Antígenos de Linfócitos T alfa-beta/imunologia , Fator de Transcrição STAT5 , Células Th1/citologia , Células Th2/citologia , Transativadores/metabolismo
15.
J Exp Med ; 190(6): 783-92, 1999 Sep 20.
Artigo em Inglês | MEDLINE | ID: mdl-10499917

RESUMO

Murine Valpha14 natural killer T (NKT) cells are thought to play a crucial role in various immune responses, including infectious, allergic, and autoimmune diseases. Because Valpha14 NKT cells produce large amounts of both interleukin (IL)-4 and interferon (IFN)-gamma upon in vivo stimulation with a specific ligand, alpha-galactosylceramide (alpha-GalCer), or after treatment with anti-CD3 antibody, a regulatory role on helper T (Th) cell differentiation has been proposed for these cells. However, the identity of the cytokine produced by Valpha14 NKT cells that play a dominant role on the Th cell differentiation still remains controversial. Here, we demonstrate by using Valpha14 NKT-deficient mice that Valpha14 NKT cells are dispensable for the induction of antigen-specific immunoglobulin (Ig)E responses induced by ovalbumin immunization or Nippostrongylus brasiliensis infection. However, upon in vivo activation with alpha-GalCer, Valpha14 NKT cells are found to suppress antigen-specific IgE production. The suppression appeared to be IgE specific, and was not detected in either Valpha14 NKT- or IFN-gamma-deficient mice. Consistent with these results, we also found that ligand-activated Valpha14 NKT cells inhibited Th2 cell differentiation in an in vitro induction culture system. Thus, it is likely that activated Valpha14 NKT cells exert a potent inhibitory effect on Th2 cell differentiation and subsequent IgE production by producing a large amount of IFN-gamma. In marked contrast, our studies have revealed that IL-4 produced by Valpha14 NKT cells has only a minor effect on Th2 cell differentiation.


Assuntos
Comunicação Celular/imunologia , Imunoglobulina E/imunologia , Células Matadoras Naturais/imunologia , Ativação Linfocitária/imunologia , Células Th2/imunologia , Animais , Diferenciação Celular/imunologia , Imunoglobulina E/biossíntese , Região Variável de Imunoglobulina/imunologia , Interferon gama/imunologia , Interleucina-4/imunologia , Ligantes , Camundongos , Transdução de Sinais/imunologia
16.
Br J Cancer ; 103(3): 297-302, 2010 Jul 27.
Artigo em Inglês | MEDLINE | ID: mdl-20606681

RESUMO

BACKGROUND: Although a pathologic complete response (pCR) after neoadjuvant chemotherapy is associated with favourable outcomes, a small proportion of patients with pCR have recurrence. This study was designed to identify factors predictive of recurrence in patients with pCR. METHODS: A total of 449 breast cancer patients received neoadjuvant chemotherapy, and 88 evaluable patients had a pCR, defined as no evidence of invasive carcinoma in the breast at surgery. The clinical stage was II in 61 patients (69%), III in 27 (31%). All patients received taxanes and 92% received anthracyclines. Among 43 patients with HER2-positive tumours, 27 received trastuzumab. Cox regression analyses were performed to identify predictors of recurrence. RESULTS: Median follow-up was 46.0 months. There were 12 recurrences, including 8 distant metastases. The rate of locoregional recurrence was 10.4% after breast-conserving surgery, as compared with 2.5% after mastectomy. Multivariate analysis revealed that axillary metastases (hazard ratio (HR), 13.6; P<0.0001) and HER2-positive disease (HR, 5.0; P<0.019) were significant predictors of recurrence. Five of six patients with both factors had recurrence. Inclusion of trastuzumab was not an independent predictor among patients with HER2-positive breast cancer. CONCLUSION: Our study results suggest that HER2 status and axillary metastases are independent predictors of recurrence in patients with pCR.


Assuntos
Neoplasias da Mama/tratamento farmacológico , Neoplasias da Mama/patologia , Terapia Neoadjuvante/métodos , Adulto , Antraciclinas/uso terapêutico , Feminino , Seguimentos , Humanos , Mastectomia/métodos , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Valor Preditivo dos Testes , Modelos de Riscos Proporcionais , Receptor ErbB-2/análise , Receptores de Estrogênio/análise , Receptores de Progesterona/análise , Recidiva , Taxoides/uso terapêutico , Fatores de Tempo , Resultado do Tratamento
17.
Ann Oncol ; 21(11): 2195-2200, 2010 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-20444847

RESUMO

BACKGROUND: The aim of this study was to develop a prediction model of progressive disease (PD) in breast cancer patients without measurable disease in first-line chemotherapy. METHODS: We developed a model to predict PD using carcinoembryonic antigen (CEA) and carbohydrate antigen (CA) 15-3 in metastatic breast cancer patients who were enrolled in a phase III trial. The model was determined using the area under the receiver operating characteristic curve (AUC) calculated by the bootstrap method as internal validation. We verified the model for those who received first-line chemotherapy in a clinical setting as external validation. We categorized patients without measurable disease into PD and non-PD groups and compared the time to progression (TTP). RESULTS: The model consisted of percent changes in CEA and CA 15-3 levels from second to third chemotherapy course and baseline abnormality of them. The AUC after external validation was 0.90. Patients without measurable disease were categorized into PD (N = 10) and non-PD groups (N = 53) by the model. The difference in TTP between the two groups was statistically significant (hazard ratio, 0.437; P = 0.021). CONCLUSION: The model may be useful to determine PD in metastatic breast cancer patients without measurable disease.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias Ósseas/tratamento farmacológico , Neoplasias Encefálicas/tratamento farmacológico , Neoplasias da Mama/tratamento farmacológico , Antígeno Carcinoembrionário/sangue , Neoplasias Hepáticas/tratamento farmacológico , Neoplasias Pulmonares/tratamento farmacológico , Mucina-1/sangue , Adulto , Idoso , Neoplasias Ósseas/sangue , Neoplasias Ósseas/secundário , Neoplasias Encefálicas/sangue , Neoplasias Encefálicas/secundário , Neoplasias da Mama/sangue , Neoplasias da Mama/patologia , Ciclofosfamida/administração & dosagem , Progressão da Doença , Doxorrubicina/administração & dosagem , Feminino , Humanos , Neoplasias Hepáticas/sangue , Neoplasias Hepáticas/secundário , Neoplasias Pulmonares/sangue , Neoplasias Pulmonares/secundário , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Prognóstico , Taxa de Sobrevida
18.
Br J Cancer ; 101(9): 1529-36, 2009 Nov 03.
Artigo em Inglês | MEDLINE | ID: mdl-19809429

RESUMO

BACKGROUND: To evaluate the impact of change in the hormone receptor (HR) status (HR status conversion) on the long-term outcomes of breast cancer patients treated with neoadjuvant chemotherapy (NAC). METHODS: We investigated 368 patients for the HR status of their lesions before and after NAC. On the basis of the HR status and the use/non-use of endocrine therapy (ET), the patients were categorised into four groups: Group A, 184 ET-administered patients with HR-positive both before and after NAC; Group B, 47 ET-administered patients with HR status conversion; Group C, 12 ET-naive patients with HR status conversion; Group D, 125 patients with HR-negative both before and after NAC. RESULTS: Disease-free survival in Group B was similar to that in Group A (hazard ratio, 1.16; P=0.652), but that in Group C was significantly lesser than that in Group A (hazard ratio, 6.88; P<0.001). A similar pattern of results was obtained for overall survival. CONCLUSION: Our results indicate that the HR status of tumours is a predictive factor for disease-free and overall survival and that ET appears to be suitable for patients with HR status conversion. Therefore, both the CNB and surgical specimens should be monitored for HR status.


Assuntos
Neoplasias da Mama/tratamento farmacológico , Receptores de Estrogênio/análise , Receptores de Progesterona/análise , Adulto , Neoplasias da Mama/química , Neoplasias da Mama/mortalidade , Neoplasias da Mama/patologia , Quimioterapia Adjuvante , Feminino , Humanos , Pessoa de Meia-Idade , Terapia Neoadjuvante , Modelos de Riscos Proporcionais , Receptor ErbB-2/análise
19.
Br J Cancer ; 100(1): 50-5, 2009 Jan 13.
Artigo em Inglês | MEDLINE | ID: mdl-19088717

RESUMO

Carcinoma of unknown primary site (CUP) is rarely encountered in clinical practice and optimal chemotherapy has not yet been established. This phase II study was conducted to evaluate the efficacy and toxicity of combined irinotecan+carboplatin therapy in chemotherapy-naive patients with CUP. Irinotecan was administered at 60 mg m(-2) as a 90-min intravenous infusion on days 1, 8 and 15. Carboplatin was administered at an area-under-the curve of 5 mg ml(-1) min as a 60-min intravenous infusion on day 1. This cycle was repeated every 28 days for up to six cycles. Forty-five patients were enrolled in the study. An intent-to-treat analysis revealed an objective response rate to the treatment of 41.9% (95% confidence interval, 27.0-57.9%). The median time to progression was 4.8 months and the median survival was 12.2 months. The 1- and 2-year survival rates were 44 and 27%, respectively. The most frequent grade 3 or more severe adverse events were leukopaenia (21%), neutropaenia (33%), anaemia (25%) and thrombocytopaenia (20%). Thus, the combination of irinotecan plus carboplatin was found to be active in patients with CUP. Therefore, the regimen may be one of the potentially available chemotherapeutic options for community standard of care in patients with a good performance status.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias Primárias Desconhecidas/tratamento farmacológico , Adulto , Idoso , Camptotecina/administração & dosagem , Camptotecina/efeitos adversos , Camptotecina/análogos & derivados , Carboplatina/administração & dosagem , Carboplatina/efeitos adversos , Feminino , Humanos , Irinotecano , Masculino , Pessoa de Meia-Idade , Neoplasias Primárias Desconhecidas/mortalidade , Taxa de Sobrevida
20.
Eur J Cancer Care (Engl) ; 17(6): 601-10, 2008 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-18771536

RESUMO

In 2002, the Thoracic Oncology Advocacy Program at H. Lee Moffitt Cancer Center and Research Institute was created with a mission to contribute to the prevention and cure of lung cancer by embracing the patient perspective. In an effort to increase awareness of clinical trials (CTs) and to humanize the CT process, members of the advocacy programme were involved in the creation of the Faces of Lung Cancer project. Twelve lung cancer patients who participated in a CT, four caregivers of patients who had been on a trial and four thoracic health care professionals were interviewed and photographed by a professional photographer with prior experience in photo-documentary work. Preliminary results indicate just the process of participating in the Faces of Lung Cancer project and creating the photo essay has had a positive impact on the lives of cancer patients and their caregivers. Formal evaluation of the Faces of Lung Cancer project is underway; however, preliminary results indicate that the project is viewed as successful in terms of conveying a message of hope and increasing awareness. By including visual displays, in conjunction with patient interviews, the photo essay is able to generate and blend powerful information and images that provide a richer, more complete portrayal of the context of a patient's experience.


Assuntos
Conscientização , Ensaios Clínicos como Assunto , Neoplasias Pulmonares , Participação do Paciente/psicologia , Fotografação , Cuidadores , Comunicação , Face , Feminino , Pessoal de Saúde , Humanos , Masculino , Avaliação de Programas e Projetos de Saúde
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