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1.
Eur J Haematol ; 101(1): 95-105, 2018 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-29660177

RESUMO

OBJECTIVE: This multicenter cooperative study aimed to analyze the adverse events (AEs) associated with tyrosine kinase inhibitors (TKIs) used as initial treatment for chronic-phase chronic myeloid leukemia (CML-CP) and their impact on outcome. METHODS: We retrospectively evaluated 450 patients with CML-CP who received TKIs between 2004 and 2014. RESULTS: The 5-year overall survival (OS) and event-free survival (EFS) rates were 95.1% and 89.0%, respectively. Patients with comorbidities (46.4%) and aged ≥60 years (50.4%) at diagnosis had significantly inferior OS to those without comorbidities and aged <60. Patients achieved higher rates of major molecular response (MMR) at 6 and 12 months after initial treatment with dasatinib or nilotinib compared to imatinib, but final MMR rates were almost the same. Sixty-six percent of patients required treatment modifications from first-line TKI therapy; the main reasons were AEs (48.4%) and failure (18%). Grade III-IV AEs in first-line TKI therapy were significantly correlated to inferior OS/EFS compared to grade 0-II AEs. CONCLUSION: Although long-term outcomes were similar in CML-CP patients treated with each TKI regardless of first-line TKI selection, severe AEs in first-line TKI therapy decreased their survival rates. Early change in TKIs is recommended, when faced with severe AEs of specific TKIs.


Assuntos
Antineoplásicos/efeitos adversos , Proteínas de Fusão bcr-abl/antagonistas & inibidores , Regulação Leucêmica da Expressão Gênica , Leucemia Mieloide de Fase Crônica/diagnóstico , Inibidores de Proteínas Quinases/efeitos adversos , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Antineoplásicos/administração & dosagem , Criança , Pré-Escolar , Dasatinibe/administração & dosagem , Dasatinibe/efeitos adversos , Feminino , Proteínas de Fusão bcr-abl/genética , Proteínas de Fusão bcr-abl/metabolismo , Humanos , Mesilato de Imatinib/administração & dosagem , Mesilato de Imatinib/efeitos adversos , Leucemia Mieloide de Fase Crônica/tratamento farmacológico , Leucemia Mieloide de Fase Crônica/mortalidade , Leucemia Mieloide de Fase Crônica/patologia , Masculino , Pessoa de Meia-Idade , Inibidores de Proteínas Quinases/administração & dosagem , Pirimidinas/administração & dosagem , Pirimidinas/efeitos adversos , Estudos Retrospectivos , Análise de Sobrevida , Resultado do Tratamento
2.
Biol Blood Marrow Transplant ; 20(4): 495-500, 2014 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-24374213

RESUMO

Idiopathic cytopenias are frequently observed in patients after allogeneic hematopoietic stem cell transplantation (allo-HSCT). We have previously reported the effect of graft-versus-host disease (GVHD) on bone marrow (BM) in murine models, indicating that the osteoblast injury mediated by donor T cells was associated with bone marrow suppression and delayed immune reconstitution. In this study, we prospectively evaluated the relevance of these findings in 51 patients. Patients with chronic GVHD manifested the loss of osteoblasts, contributing to cytopenic symptoms (P = .0427 compared with patients without cytopenic symptoms). The loss of osteoblasts was significantly associated with the extensive type of chronic GVHD (P = .012), and flow cytometric analyses revealed lower numbers of CD19(+) B cells and a significantly increased CD4 to CD8 ratio (P = .0002) in these patients. Our data, for the first time to our knowledge, summarize the detailed analyses of the effect of GVHD on BM in the clinical allo-HSCT patients.


Assuntos
Células da Medula Óssea/patologia , Doença Enxerto-Hospedeiro/patologia , Neoplasias Hematológicas/terapia , Transplante de Células-Tronco Hematopoéticas , Osteoblastos/patologia , Adulto , Idoso , Antígenos CD19/imunologia , Linfócitos B/imunologia , Linfócitos B/patologia , Células da Medula Óssea/imunologia , Linfócitos T CD4-Positivos/imunologia , Linfócitos T CD4-Positivos/patologia , Linfócitos T CD8-Positivos/imunologia , Linfócitos T CD8-Positivos/patologia , Contagem de Células , Doença Crônica , Feminino , Doença Enxerto-Hospedeiro/imunologia , Neoplasias Hematológicas/imunologia , Neoplasias Hematológicas/patologia , Hematopoese/imunologia , Humanos , Masculino , Pessoa de Meia-Idade , Osteoblastos/imunologia , Estudos Prospectivos , Transplante Homólogo
3.
Lancet Haematol ; 11(6): e406-e414, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38796193

RESUMO

BACKGROUND: Follicular helper T-cell lymphomas (TFHL) harbour frequent alterations in genes that regulate DNA methylation. Preliminary reports suggest that treatment with 5-azacitidine has clinical activity in patients with relapsed or refractory TFHL. We aimed to compare the oral form of azacitidine with investigator's choice standard therapy (ICT; ie, gemcitabine, bendamustine, or romidepsin) in patients with relapsed or refractory TFHL. METHODS: Patients older than 18 years with relapsed or refractory TFHL (angioimmunoblastic T-cell lymphoma, follicular lymphoma, or nodal T-cell lymphoma with phenotype, ie, positive with two or more markers among CD10, BCL6, CXCL13, PD1, or ICOS) based on the 2017 WHO classification of haematological neoplasms, with an Eastern Cooperative Oncology Group performance status score of 0-3, were recruited in university hospitals from five European countries and from Japan. Patients were randomly assigned 1:1 to treatment with either azacitidine given at a dose of 300 mg once a day (200 mg in Japanese patients) for 14 days in a 28-day cycle or gemcitabine, bendamustine, or romidepsin according to the investigator's choice. Random assignment was stratified by the number of previous lines of therapy and by the presence of previous or concomitant myeloid malignancy. The primary endpoint was investigator-assessed progression-free survival, presented in the intention-to-treat population. This Article is the final analysis of this trial, registered at ClinicalTrials.gov (Europe NCT03593018 and Japan NCT03703375). FINDINGS: 86 patients (median age 69 years [IQR 62-76], 50 patients were male, 36 were female) were enrolled between Nov 9, 2018, to Feb 22, 2021; 42 in the azacitidine group and 44 in the ICT group. With a median follow-up of 27·4 months (IQR 20·2-32·9), the median progression-free survival was 5·6 months (95% CI 2·7 -8·1) in the azacitidine group versus 2·8 months (1·9-4·8) in the ICT group (hazard ratio of 0·63 (95% CI 0·38-1·07); 1-sided p=0·042). Grade 3-4 adverse events were reported in 32 (76%) of 42 patients in the azacitidine group versus 42 (98%) of 43 patients in the ICT group. The most adverse grade 3 or worse adverse events were haematological (28 [67%] of 42 patients vs 40 [93%] of 43 patients), infection (8 [19%] and 14 [33%]), and gastrointestinal (5 [12%] vs 1 [2%] for azacitidine and ICT, respectively). There were two treatment-related deaths in the azacitidine group (one endocarditis and one candidiasis) and three in the ICT group (one heart failure, one COVID-19, and one cause unknown). INTERPRETATION: Although the pre-specified primary outcome of the trial was not met, the favourable safety profile suggests that azacitidine could add to the treatment options in these difficult to treat diseases especially in combination with other drugs. Trials with combination are in preparation in a platform trial. FUNDING: Bristol-Myers Squibb. TRANSLATION: For the French translation of the abstract see Supplementary Materials section.


Assuntos
Azacitidina , Humanos , Masculino , Feminino , Idoso , Pessoa de Meia-Idade , Azacitidina/uso terapêutico , Azacitidina/efeitos adversos , Azacitidina/administração & dosagem , Administração Oral , Cloridrato de Bendamustina/uso terapêutico , Cloridrato de Bendamustina/administração & dosagem , Cloridrato de Bendamustina/efeitos adversos , Gencitabina , Linfoma Folicular/tratamento farmacológico , Linfoma Folicular/mortalidade , Desoxicitidina/análogos & derivados , Desoxicitidina/uso terapêutico , Desoxicitidina/administração & dosagem , Desoxicitidina/efeitos adversos , Depsipeptídeos/uso terapêutico , Depsipeptídeos/efeitos adversos , Depsipeptídeos/administração & dosagem , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Antimetabólitos Antineoplásicos/uso terapêutico , Antimetabólitos Antineoplásicos/efeitos adversos , Antimetabólitos Antineoplásicos/administração & dosagem , Idoso de 80 Anos ou mais
4.
Int J Hematol ; 117(5): 729-737, 2023 May.
Artigo em Inglês | MEDLINE | ID: mdl-36690910

RESUMO

BACKGROUND: In the phase 2 KarMMa trial, patients with relapsed/refractory multiple myeloma (RRMM) achieved deep and durable responses with idecabtagene vicleucel (ide-cel), a B-cell maturation antigen-directed chimeric antigen receptor (CAR) T cell therapy. Here we report a sub-analysis of the Japanese cohort of KarMMa. METHODS: Adult patients with RRMM who had received  ≥ 3 prior treatment regimens, including a proteasome inhibitor, an immunomodulatory agent, and an anti-CD38 antibody, and had disease refractory to last treatment received ide-cel at a target dose of 450 × 106 CAR positive T cells. RESULTS: Nine patients were treated with ide-cel. The overall response rate was 89% (median follow-up, 12.9 months). The best overall response was stringent complete response in 5 patients (56%), very good partial response in 3 (33%), and stable disease in 1. Median duration of response was not reached. All patients experienced grade ≤ 2 cytokine release syndrome and one patient experienced grade 2 neurotoxicity, but all resolved. Two patients died, one each from plasma cell myeloma and general health deterioration. CONCLUSION: Ide-cel yielded deep, durable responses with a tolerable and predictable safety profile in Japanese patients with RRMM. These results are similar to those of the non-Japanese population in KarMMa.


Assuntos
Mieloma Múltiplo , Neoplasias de Plasmócitos , Receptores de Antígenos Quiméricos , Adulto , Humanos , Mieloma Múltiplo/terapia , Imunoterapia Adotiva/efeitos adversos , Síndrome da Liberação de Citocina
5.
Support Care Cancer ; 20(2): 367-73, 2012 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-21328006

RESUMO

GOAL OF WORK: Little is known about the effects of professional oral health care (POHC) on the outcome of hematopoietic stem cell transplantation (HSCT). We evaluated the effects of POHC given by dentists and dental hygienists on the development of oral mucositis and febrile neutropenia (FN) after allogeneic bone marrow transplantation (BMT). PATIENTS AND METHODS: We retrospectively studied 140 adult patients who had received allogeneic BMT, with or without POHC, in our hospital consecutively between February 2002 and December 2009. Oral mucositis was evaluated according to the World Health Organization scale. MAIN RESULTS: The incidence of oral mucositis was 66.7% (52/78) in the patients who had received POHC, compared to 93.5% (58/62) in the non-POHC group (P < 0.001). The incidence of FN and the maximal level of CRP were also significantly lower in the POHC group. Multivariate analysis revealed that the POHC was significantly associated with the incidence of oral mucositis (odds ratio, 7.58; 95%CI, 2.45-23.34; P < 0.001). CONCLUSIONS: We concluded that POHC reduced the incidences of oral mucositis and FN by upgrading the overall oral hygiene during HSCT.


Assuntos
Assistência Odontológica/métodos , Transplante de Células-Tronco Hematopoéticas/métodos , Neutropenia/prevenção & controle , Estomatite/prevenção & controle , Adolescente , Adulto , Idoso , Transplante de Medula Óssea/métodos , Atenção à Saúde , Feminino , Febre/epidemiologia , Febre/etiologia , Febre/prevenção & controle , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Neoplasias/terapia , Neutropenia/epidemiologia , Neutropenia/etiologia , Saúde Bucal , Estudos Retrospectivos , Estomatite/epidemiologia , Estomatite/etiologia , Transplante Homólogo , Adulto Jovem
6.
Support Care Cancer ; 20(5): 933-9, 2012 May.
Artigo em Inglês | MEDLINE | ID: mdl-21494780

RESUMO

Severe oral mucositis developed in allogeneic hematopoietic stem cell transplantation (HSCT) accompanies intolerable pain and risk for systemic bacteremia infection. Conventional stem cell transplantation (CST) and reduced-intensity regimens for allogeneic HSCT (RIST) may differently affect the occurrence and severity of oral mucositis. Here, we comparatively examined oral mucositis in patients undergoing CST and that in RIST patients to search for measures to alleviate oral mucositis. We retrospectively analyzed the data of 130 consecutive patients undergoing HSCT (conventional, 60; RIST, 70). Oral mucositis was evaluated according to the National Cancer Institute Common Terminology Criteria for Adverse Events version 3.0. We also investigated the risk factors for severe oral mucositis in each regimen. The incidence of oral mucositis was not significantly different between RIST and CST patients. The use of opioid analgesics to control pain due to oral mucositis was significantly less in patients undergoing RIST compared with those receiving CST. The risk factors for severe oral mucositis, determined by univariate and multivariate analyses, were "younger age (<40)" in CST and "longer duration of neutropenia (≥ 14 days)" in RIST. Although the incidences of oral mucositis were almost the same, the need for opioid analgesics and the risk factors for severe oral mucositis differed between CST and RIST patients.


Assuntos
Transplante de Células-Tronco Hematopoéticas/métodos , Estomatite/etiologia , Condicionamento Pré-Transplante/métodos , Adolescente , Adulto , Fatores Etários , Idoso , Feminino , Transplante de Células-Tronco Hematopoéticas/efeitos adversos , Humanos , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Estudos Retrospectivos , Fatores de Risco , Índice de Gravidade de Doença , Estomatite/epidemiologia , Estomatite/patologia , Fatores de Tempo , Condicionamento Pré-Transplante/efeitos adversos , Transplante Homólogo , Adulto Jovem
7.
Int J Hematol ; 116(1): 122-130, 2022 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-35429329

RESUMO

In cohort C of the phase 2 MM-014 trial, the efficacy and safety of pomalidomide, dexamethasone, and daratumumab therapy were investigated in 18 Japanese patients with relapsed/refractory multiple myeloma (RRMM) after their most recent regimen of lenalidomide-based therapy (NCT01946477). Patients received oral pomalidomide (4 mg daily), oral dexamethasone (20-40 mg weekly), and intravenously infused daratumumab (16 mg/kg). Median age was 67.5 years. All patients received prior lenalidomide per protocol; 89% received prior bortezomib. Twelve patients (67%) had lenalidomide-refractory disease, and 6 (33%) had lenalidomide-relapsed disease. Ten patients (56%) had only 1 prior treatment line. As of August 3, 2020, 15 patients (83%) were still on treatment; median follow-up was 8.1 months. Three patients (17%) discontinued treatment (2 for adverse events; 1 for major protocol deviation). Overall response rate (primary endpoint) was 83% (very good partial response or better, 61%). All patients had ≥ 1 grade 3/4 treatment-emergent adverse events, most commonly neutropenia (78%; febrile, 6%), leukopenia (28%), and lymphopenia (22%). Grade 3/4 infections occurred in 17%; 11% had pneumonia. In Japanese patients with RRMM, a triplet regimen of pomalidomide, dexamethasone, and daratumumab after early-line lenalidomide treatment failure showed high efficacy and safety consistent with the known safety profile.


Assuntos
Mieloma Múltiplo , Idoso , Anticorpos Monoclonais , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Dexametasona , Humanos , Japão , Lenalidomida , Mieloma Múltiplo/tratamento farmacológico , Mieloma Múltiplo/etiologia , Recidiva Local de Neoplasia/tratamento farmacológico , Talidomida/análogos & derivados , Resultado do Tratamento
8.
Biochem Biophys Res Commun ; 395(1): 111-5, 2010 Apr 23.
Artigo em Inglês | MEDLINE | ID: mdl-20350533

RESUMO

DOCK2; a member of the CDM protein family, regulates cell motility and cytokine production through the activation of Rac in mammalian hematopoietic cells and plays a pivotal role in the modulation of the immune system. Here we demonstrated the alternative function of DOCK2 in hematopoietic tumor cells, especially in terms of its association with the tumor progression. Immunostaining for DOCK2 in 20 cases of human B cell lymphoma tissue specimens including diffuse large B cell lymphoma and follicular lymphoma revealed the prominent expression of DOCK2 in all of the lymphoma cells. DOCK2-knockdown (KD) of the B cell lymphoma cell lines, Ramos and Raji, using the lentiviral shRNA system presented decreased cell proliferation compared to the control cells. Furthermore, the tumor formation of DOCK2-KD Ramos cell in nude mice was significantly abrogated. Western blotting analysis and pull-down assay using GST-PAK-RBD kimeric protein suggested the presence of DOCK2-Rac-ERK pathway regulating the cell proliferation of these lymphoma cells. This is the first report to clarify the prominent role of DOCK2 in hematopoietic malignancy.


Assuntos
MAP Quinases Reguladas por Sinal Extracelular/metabolismo , Fatores de Troca do Nucleotídeo Guanina/metabolismo , Linfoma de Células B/patologia , Proteínas Proto-Oncogênicas c-akt/metabolismo , Animais , Linhagem Celular Tumoral , Proliferação de Células , Ativação Enzimática , Proteínas Ativadoras de GTPase , Técnicas de Silenciamento de Genes , Fatores de Troca do Nucleotídeo Guanina/genética , Humanos , Linfoma de Células B/genética , Camundongos , RNA Interferente Pequeno/genética , Ensaios Antitumorais Modelo de Xenoenxerto
9.
Am J Hematol ; 85(4): 243-8, 2010 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-20162540

RESUMO

Reduced intensity conditioning (RIC) regimens are widely used in allogeneic stem cell transplantation (SCT). In this study, we retrospectively investigated the clinical outcomes of RIC with fludarabine (Flu; 180 mg/m(2)), intravenous busulfan (BU; 6.4 mg/kg) or oral BU (8 mg/kg), and low-dose total body irradiation (TBI; 4 Gy) (Flu-BU2-TBI) in 66 patients (median age: 54.5 years) with various hematological malignancies. Thirty-eight patients (58%) were high-risk patients (median age: 56 years). The overall survival rate at 2 years of the high-risk patients was 64.5%, which was comparable to the survival rate of 70.9% in standard-risk patients (P = 0.68). The relapse rates at 2 years in the standard-risk and high-risk patients were 16 and 28%, respectively, and day 100 treatment-related mortality rates were 0 and 6%, respectively. The Flu-BU2-TBI regimen for high-risk patients showed therapeutic effects equivalent to those for standard-risk patients and favorable outcomes compared with those of other previous RIC regimens.


Assuntos
Bussulfano/uso terapêutico , Transplante de Células-Tronco Hematopoéticas , Agonistas Mieloablativos/uso terapêutico , Condicionamento Pré-Transplante/métodos , Vidarabina/análogos & derivados , Irradiação Corporal Total/métodos , Adulto , Idoso , Envelhecimento , Bussulfano/administração & dosagem , Humanos , Pessoa de Meia-Idade , Estudos Retrospectivos , Fatores de Risco , Índice de Gravidade de Doença , Análise de Sobrevida , Transplante Homólogo , Resultado do Tratamento , Vidarabina/uso terapêutico
10.
Biol Blood Marrow Transplant ; 15(6): 679-85, 2009 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-19450752

RESUMO

Cytomegalovirus (CMV) infection is 1 of the major causes of morbidity in patients undergoing allogeneic stem cell transplantation (allo-SCT). The incidences of CMV antigenemia and CMV disease in 43 patients who received allogeneic bone marrow transplantation (BMT) using a reduced-intensity conditioning (RIC) regimen, which mainly consisted of fludarabine (Flu), busulfan (Bu), and total body irradiation (TBI), were compared with those in 68 patients who received a myeloablative conditioning (MAC) regimen, and risk factors for CMV antigenemia and CMV disease were identified. Before engraftment, grade 3-4 mucosal injury because of the conditioning regimen was significantly decreased in RIC patients (stomatitis: P = .02; diarrhea: P < .01). Rate of engraftment, incidences of acute graft-versus-host disease (aGVHD), and rate of corticosteroid administration were not different in RIC patients and MAC patients. Although the incidences of CMV antigenemia were not significantly different in RIC patients and MAC patients (64.1% versus 57.8%, log rank, P = .59), the incidence of CMV disease was significantly decreased in RIC patients (5.4% versus 20.3%, log rank, P = .04). CMV seropositivity in the patients (P < .01) and corticosteroid administration (P < .01) were revealed by multivariate analysis to be significant risk factors for CMV antigenemia. Grade II-IV aGVHD (P = .02) and grade 3-4 diarrhea before engraftment (P = .04) were revealed to be risk factors for CMV disease. The present study is the first study to show that severe diarrhea before engraftment is a significant risk factor for CMV disease. In summary, risk of CMV disease was significantly decreased in patients without severe mucosal injury of the gut because of the conditioning regimen before engraftment.


Assuntos
Transplante de Medula Óssea/efeitos adversos , Infecções por Citomegalovirus/etiologia , Mucosa Intestinal/patologia , Agonistas Mieloablativos/efeitos adversos , Complicações Pós-Operatórias/etiologia , Lesões por Radiação/etiologia , Condicionamento Pré-Transplante/efeitos adversos , Irradiação Corporal Total/efeitos adversos , Adolescente , Adulto , Idoso , Anti-Infecciosos/uso terapêutico , Antígenos Virais/sangue , Bussulfano/administração & dosagem , Bussulfano/efeitos adversos , Infecções por Citomegalovirus/sangue , Infecções por Citomegalovirus/epidemiologia , Infecções por Citomegalovirus/prevenção & controle , Infecções por Citomegalovirus/transmissão , Suscetibilidade a Doenças , Feminino , Humanos , Imunossupressores/efeitos adversos , Incidência , Mucosa Intestinal/efeitos dos fármacos , Mucosa Intestinal/efeitos da radiação , Japão , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias/sangue , Complicações Pós-Operatórias/epidemiologia , Complicações Pós-Operatórias/prevenção & controle , Lesões por Radiação/epidemiologia , Estudos Retrospectivos , Fatores de Risco , Transplante Homólogo/efeitos adversos , Vidarabina/administração & dosagem , Vidarabina/efeitos adversos , Vidarabina/análogos & derivados , Adulto Jovem
11.
Biol Blood Marrow Transplant ; 15(6): 724-9, 2009 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-19450757

RESUMO

To assess the incidence of and risk factors associated with postherpetic neuralgia (PHN) after hematopoietic cell transplantation (HCT) varicella zoster virus (VZV) infection, we conducted a retrospective chart review of 418 consecutive patients who underwent HCT between April 2005 and March 2007. The male/female ratio was 221/197, median age at HCT was 47 years (range: 0-69 years), and autologous/allogeneic/syngeneic HCT ratio was 154/263/1. Seventy-eight patients developed VZV infection after HCT. Sixty-two patients had localized zoster, 11 patients had disseminated zoster (rash like chicken pox), and 4 patients had visceral zoster. All cases were treated with acyclovir (ACV) or valacyclovir (VACV), and there was no VZV infection-related death. Twenty-seven (35%) of the 78 patients with VZV infection suffered PHN after resolution of VZV infection. Multivariate analysis showed that advanced age is the only risk factor in autologous HCT (P = .0075; odds ratio [OR] = 1.14; 95% confidence interval [CI], 0.97-1.33). On the other hand, advanced age (P = .0097; OR = 1.06; 95% CI, 1.01-1.12), male gender (P = .0055; OR = 12.7; 95% CI, 1.61-100.1), and graft-versus-host disease (GVHD) prophylaxis with a tacrolimus-based regimen (P = .0092; OR = 9.56; 95% CI, 1.44-63.3) were associated with increased risk of PHN in allogeneic HCT. This study for the first time clarified the risk of PHN in HCT recipients.


Assuntos
Varicela/complicações , Transplante de Células-Tronco Hematopoéticas , Herpes Zoster/complicações , Neuralgia Pós-Herpética/epidemiologia , Complicações Pós-Operatórias/epidemiologia , Aciclovir/análogos & derivados , Aciclovir/uso terapêutico , Adolescente , Adulto , Idoso , Varicela/prevenção & controle , Criança , Pré-Escolar , Feminino , Doenças Genéticas Inatas/complicações , Herpes Zoster/prevenção & controle , Humanos , Incidência , Lactente , Recém-Nascido , Japão/epidemiologia , Masculino , Pessoa de Meia-Idade , Neoplasias/complicações , Neoplasias/cirurgia , Neuralgia Pós-Herpética/etiologia , Complicações Pós-Operatórias/prevenção & controle , Estudos Retrospectivos , Risco , Transplante Autólogo , Transplante Homólogo , Valaciclovir , Valina/análogos & derivados , Valina/uso terapêutico , Ativação Viral , Adulto Jovem
12.
J Med Virol ; 81(6): 979-82, 2009 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-19382259

RESUMO

The effect of highly active antiretroviral therapy (HAART) on hepatitis C virus (HCV) infection remains uncertain. This report describes the case of a man with hemophilia with HIV-HCV coinfection with persistent disappearance of HCV RNA after changing the HAART regimen. He had been treated with zidovudine, lamivudine, and indinavir for initial HAART and the HIV RNA level had been undetectable for more than 8 years. He had suffered from chronic active hepatitis. The HAART regimen was changed to emtricitabine/tenofovir, atazanavir, and ritonavir because the patient preferred a once daily regimen. The HCV RNA level fell immediately and thereafter became undetectable by quantitative and qualitative assay at 5 and 7 months after the change of the HAART regimen, respectively. In contrast to other reported cases, he experienced neither increase of CD4+ T cells count nor ALT flare-ups before HCV RNA clearance. The HCV RNA disappearance in this case may be due to the direct effect of HAART against HCV rather than restoration of cellular immunity to HCV.


Assuntos
Fármacos Anti-HIV/uso terapêutico , Terapia Antirretroviral de Alta Atividade/métodos , Antivirais/uso terapêutico , Infecções por HIV/complicações , Infecções por HIV/tratamento farmacológico , Hepacivirus/efeitos dos fármacos , Hepatite C Crônica/tratamento farmacológico , Adulto , Contagem de Linfócito CD4 , Humanos , Masculino , RNA Viral/sangue , Adulto Jovem
13.
Eur J Haematol ; 82(2): 143-7, 2009 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-19018870

RESUMO

OBJECTIVES: Recent studies have indicated that patients who receive stem cell transplantation (SCT) and rituximab demonstrate an increased risk of developing hypogammaglobulinemia. Such hypogammaglobulinemia has been found to be due to delayed recovery of memory B cells with an abnormal cell marker expression and impaired immunoglobulin production in vitro. However, no predictive factors for the levels of immunoglobulin after autologous SCT and rituximab therapy have been reported. The aim of this study is to clarify the relationships between the FCGR3A-158V/F genotype and the levels of serum immunoglobulin after SCT. METHODS: A total of 24 non-Hodgkin's lymphoma (NHL) patients received autologous SCT with an adjuvant rituximab. The FCGR3A-158V/F genotype was determined in these patients. We also included ten NHL patients who received an identical conditioning regimen and autologous SCT but no rituximab as control patients. RESULTS: The levels of IgG were significantly lower in FCGR3A-158F homozygous patients (n = 9) in comparison to those in FCGR3A-158V carriers (n = 15). Moreover, the levels of IgG and IgA of FCGR3A-158F homozygous patients, but not those of FCGR3A-158V carriers, were significantly lower than those of control patients. CONCLUSIONS: The genotype of FCGR3A determines not only the response to rituximab, but also the levels of immunoglobulin after SCT and an adjuvant rituximab.


Assuntos
Anticorpos Monoclonais/uso terapêutico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Transplante de Células-Tronco Hematopoéticas , Imunoglobulinas/sangue , Linfoma não Hodgkin/terapia , Polimorfismo Genético , Receptores de IgG/genética , Adulto , Idoso , Anticorpos Monoclonais Murinos , Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Ciclofosfamida/administração & dosagem , Doxorrubicina/administração & dosagem , Feminino , Humanos , Linfoma não Hodgkin/sangue , Linfoma não Hodgkin/tratamento farmacológico , Linfoma não Hodgkin/genética , Masculino , Pessoa de Meia-Idade , Prednisona/administração & dosagem , Rituximab , Vincristina/administração & dosagem
15.
Biol Blood Marrow Transplant ; 14(5): 568-75, 2008 May.
Artigo em Inglês | MEDLINE | ID: mdl-18410899

RESUMO

We retrospectively evaluated the outcomes of 37 adult patients with acute lymphoblastic leukemia (ALL) undergoing allogeneic hematopoietic stem cell transplantation (allo-SCT) conditioned with medium-dose VP-16 (VP, 30 mg/kg), cyclophosphamide (CY, 120 mg/kg), and fractionated total-body irradiation (TBI, 12 Gy) (medium-dose VP/CY/TBI). The median age of the patients was 26 years. Thirteen patients underwent transplantation from HLA-matched related donors (MRD), 18 patients underwent transplantation from HLA-matched unrelated donors (MUD), and 6 patients underwent transplantation from HLA-mismatched donors (MMD). Thirty-two patients received bone marrow and 4 patients received peripheral blood stem cells. Ten patients were Philadelphia chromosome-positive (Ph(+)) and 35 patients were in complete remission (CR) at transplantation. All of the patients achieved engraftment, and grade 3 organ toxicity before engraftment occurred in 27 patients. Grade II-III acute graft-versus-host disease (GVHD) and chronic GVHD (cGVHD) occurred in 15 and 18 patients, respectively. No patient developed grade IV acute GVHD (aGVHD) or died of GVHD. At median follow-up of 35.1 months, 32 patients were alive and all Ph(+) patients were alive. Three patients died of relapse and 2 died of transplant-related mortality (TRM). The actuarial 3-year overall survival (OS) rate, relapse rate, and TRM rate were 89.2%, 8.1%, and 5.4%, respectively. Non-CR at transplantation, MRD, and no aGVHD were significant adverse prognostic factors for survival. Medium-dose VP/CY/TBI for adult ALL patients was associated with lower relapse rate and no increase in toxicity, resulting in better survival.


Assuntos
Ciclofosfamida/administração & dosagem , Etoposídeo/administração & dosagem , Transplante de Células-Tronco Hematopoéticas/métodos , Leucemia-Linfoma Linfoblástico de Células Precursoras/terapia , Condicionamento Pré-Transplante/métodos , Adolescente , Adulto , Ciclofosfamida/toxicidade , Etoposídeo/toxicidade , Doença Enxerto-Hospedeiro , Transplante de Células-Tronco Hematopoéticas/efeitos adversos , Transplante de Células-Tronco Hematopoéticas/mortalidade , Humanos , Masculino , Leucemia-Linfoma Linfoblástico de Células Precursoras/complicações , Leucemia-Linfoma Linfoblástico de Células Precursoras/radioterapia , Prognóstico , Indução de Remissão , Estudos Retrospectivos , Análise de Sobrevida , Condicionamento Pré-Transplante/efeitos adversos , Transplante Homólogo , Resultado do Tratamento , Irradiação Corporal Total
16.
Biol Blood Marrow Transplant ; 14(7): 817-23, 2008 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-18541202

RESUMO

Adult T cell leukemia/lymphoma (ATL) is a highly aggressive T cell malignancy, and has a poor prognosis. Recently, allogeneic-hematopoietic stem cell transplantation (allo-HSCT) has been suggested to improve the outcome. We retrospectively analyzed 15 patients with ATL who had received allo-HSCT in 2 institutions in Hokkaido, Japan. The median age of the patients was 57 years. The estimated 3-year overall survival (OS) and progression-free survival (PFS) rates were 73.3% and 66.7%, respectively. Calcineurin inhibitor dosage was reduced and administration was discontinued abruptly in 6 of the 15 patients for disease control; as a result, 4 (66.7%) of the 6 patients achieved complete response (CR) or partial response. Therefore, a graft-versus-leukemia/lymphoma (GVL) effect might be induced by discontinuation of immunosuppression. Thirteen of the 15 patients were followed up by monitoring HTLV-1 proviral DNA levels. In 10 of the 11 patients with positive HTLV-1 proviral DNA before allo-HSCT, HTLV-1 proviral DNA became undetectable at least once after allo-HSCT, and only 1 of the 5 patients in whom HTLV-1 proviral DNA became detectable after allo-HSCT relapsed. Compared to the results of past studies, these results show that allo-HSCT greatly improved the prognosis of ATL and suggest a contribution of the induction of a GVL effect.


Assuntos
Efeito Enxerto vs Leucemia , Transplante de Células-Tronco Hematopoéticas/métodos , Leucemia-Linfoma de Células T do Adulto/terapia , Adulto , Idoso , Intervalo Livre de Doença , Feminino , Seguimentos , Infecções por HTLV-I/sangue , Infecções por HTLV-I/terapia , Humanos , Estimativa de Kaplan-Meier , Masculino , Pessoa de Meia-Idade , Indução de Remissão , Estudos Retrospectivos , Transplante Homólogo , Carga Viral
18.
Exp Hematol ; 30(11): 1238-47, 2002 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-12423676

RESUMO

OBJECTIVE: The inhibitory effects of tumor necrosis factor-alpha (TNF-alpha) on cytokine-induced proliferation and differentiation of normal human erythroid progenitors have been characterized extensively, yet little is known about the maturation level of erythroid progenitors that are sensitive to TNF-alpha or of the expression of TNF receptors (TNFRs) in erythroid lineage. The aim of this study was to determine the extent to which human erythroid progenitor cells are sensitive to TNF-alpha, and to relate this to the expression of TNFRs in the erythroid lineage. MATERIALS AND METHODS: Highly purified human CD34+ cells underwent erythroid differentiation, with or without TNF-alpha. We used colony assay as well as a method by which colony-forming unit-erythroid (CFU-E) and glycophorin A (GPA; a specific marker for erythroid lineage) positive cells can be generated in liquid phase from purified human CD34+ cells in the presence of multiple cytokines, including stem cell factor (SCF), interleukin-3 (IL-3), and erythropoietin (EPO). During erythroid differentiation of CD34+ cells, TNFRs expression were monitored. RESULTS: TNF-alpha inhibited the generation of GPA+ cells by CD34+ cells as well as the proliferative capacity of GPA+ cells supported by EPO, IL-3, and SCF. Erythroid progenitors became resistant to the inhibitory effect of TNF-alpha as they matured. The detectable expression of TNFR-I was transient in the early phase of erythroid differentiation, whereas TNFR-II was expressed through the entire course of erythroid differentiation of CD34+ cells. CONCLUSIONS: TNF-alpha suppresses erythropoiesis by inhibiting the generation of GPA+ cells derived from CD34+ cells as well as by inhibiting the proliferative capacity of GPA+ cells. Although the presence of TNFRs does not directly indicate that the receptor(s) mediates death signaling, altered expression of TNFRs depending on the level of maturation may imply altered sensitivities to TNF-alpha in various stage of erythroid progenitors.


Assuntos
Antígenos CD34/análise , Células Precursoras Eritroides/efeitos dos fármacos , Eritropoese/efeitos dos fármacos , Glicoforinas/análise , Fator de Necrose Tumoral alfa/farmacologia , Adulto , Antígenos CD/análise , Antígenos de Diferenciação/análise , Diferenciação Celular/efeitos dos fármacos , Divisão Celular/efeitos dos fármacos , Células Cultivadas/efeitos dos fármacos , Ensaio de Unidades Formadoras de Colônias , Células Precursoras Eritroides/citologia , Filgrastim , Fator Estimulador de Colônias de Granulócitos/farmacologia , Mobilização de Células-Tronco Hematopoéticas , Humanos , Receptores do Fator de Necrose Tumoral/análise , Receptores Tipo I de Fatores de Necrose Tumoral , Receptores Tipo II do Fator de Necrose Tumoral , Proteínas Recombinantes
20.
Int J Hematol ; 96(6): 748-57, 2012 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-23111539

RESUMO

Invasive fungal infection (IFI) causes morbidity and mortality among patients with hematological malignancies who receive cytotoxic chemotherapy or hematopoietic stem cell transplantation (HSCT). We evaluated the incidence and treatment outcomes of proven and probable IFI in 22 institutions between 2006 and 2008 following the recent European Organization for Research and Treatment of Cancer/Mycosis Study Group (EORTC/MSG) consensus criteria. We analyzed 2,821 patients with hematological malignancies, including 597 who had undergone HSCT; these included patients with acute leukemia (n = 697), myelodysplastic syndrome (n = 284), lymphoma (n = 1465), or multiple myeloma (n = 375). IFIs were diagnosed in 38 (1.3%) patients (18 proven and 20 probable), including 20 patients who underwent HSCT and 18 who received chemotherapy alone; these included patients with aspergillosis (n = 23), candidiasis (n = 6), mucormycosis (n = 6), trichosporonosis (n = 2), and geotrichosis (n = 1). The incidence of IFI was 5.4 % in allogeneic HSCT patients, 0.4 % in autologous HSCT patients, and 0.8 % in patients receiving chemotherapy alone. Eighteen patients with aspergillosis were diagnosed with probable pulmonary IFI as determined by computed tomography scan and positive galactomannan assay. Overall, antifungal targeted therapies resulted in successful outcomes in 60.0 % of patients. IFI-attributable mortality rate was higher in HSCT patients than in those receiving chemotherapy alone, but the difference was not statistically significant.


Assuntos
Neoplasias Hematológicas/complicações , Micoses/epidemiologia , Infecções Oportunistas/epidemiologia , Adolescente , Adulto , Idoso , Antifúngicos/uso terapêutico , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Infecções Relacionadas a Cateter/tratamento farmacológico , Infecções Relacionadas a Cateter/epidemiologia , Criança , Pré-Escolar , Terapia Combinada , Feminino , Neoplasias Hematológicas/tratamento farmacológico , Neoplasias Hematológicas/cirurgia , Humanos , Hospedeiro Imunocomprometido , Lactente , Aspergilose Pulmonar Invasiva/tratamento farmacológico , Aspergilose Pulmonar Invasiva/epidemiologia , Japão/epidemiologia , Masculino , Pessoa de Meia-Idade , Micoses/tratamento farmacológico , Micoses/etiologia , Micoses/microbiologia , Neutropenia/induzido quimicamente , Neutropenia/complicações , Infecções Oportunistas/tratamento farmacológico , Infecções Oportunistas/etiologia , Complicações Pós-Operatórias/tratamento farmacológico , Complicações Pós-Operatórias/epidemiologia , Estudos Retrospectivos , Transplante de Células-Tronco , Resultado do Tratamento , Adulto Jovem
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