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1.
Rev Med Suisse ; 10(447): 1961-2, 1964-6, 1968, 2014 Oct 22.
Artigo em Francês | MEDLINE | ID: mdl-25518205

RESUMO

As a result of advances in oncologic treatment, a growing number of women diagnosed with cancer may envisage cure. Young women diagnosed with cancer often have a desire to fall pregnant in the future or may even be diagnosed with cancer in the process of family planning. The potential gonadotoxic effect of certain chemotherapeutic agents is well described. Therefore, it is essential that all women concerned about their fertility receive counselling from a reproductive medicine specialist to discuss the fertility preservation options. Currently, ovarian stimulation with cryopreservation of oocytes or fertilized oocytes is the treatment of choice. However, other options such as in vitro maturation or ovarian tissue cryopreservation should be discussed if ovarian stimulation is contraindicated.


Assuntos
Preservação da Fertilidade/métodos , Infertilidade Feminina/prevenção & controle , Neoplasias/terapia , Antineoplásicos/efeitos adversos , Antineoplásicos/uso terapêutico , Criopreservação/métodos , Feminino , Fertilidade/fisiologia , Humanos , Técnicas de Maturação in Vitro de Oócitos/métodos , Infertilidade Feminina/etiologia , Oócitos/metabolismo , Gravidez , Medicina Reprodutiva/métodos
2.
Rev Med Suisse ; 3(112): 1298-1300, 1302, 1304, 2007 May 23.
Artigo em Francês | MEDLINE | ID: mdl-17596065

RESUMO

Prognosis of breast cancer women has been dramatically improved by the adjuvant therapies. As the vast majority of patients are cured, the importance of long-term quality of life is growing. The question of the maternity is an essential concern for the young women who have to receive chemotherapy or several years of endocrine therapy. This problem is often underestimated and may lead to emotional distress, depression or anxiety. A regional multidisciplinary working group was set up in order to offer optimal information about fertility and cancer as to propose specific therapeutic reproduction options, when applicable. Specificity of the young patients' breast cancer, the treatment approaches and their impact on fertility are discussed in this paper.


Assuntos
Neoplasias da Mama/terapia , Antineoplásicos/administração & dosagem , Antineoplásicos/efeitos adversos , Neoplasias da Mama/complicações , Feminino , Humanos , Infertilidade Feminina/etiologia , Infertilidade Feminina/prevenção & controle
3.
Support Care Cancer ; 15(5): 525-31, 2007 May.
Artigo em Inglês | MEDLINE | ID: mdl-17205278

RESUMO

GOALS OF WORK: Long-term outcomes of osteosarcoma have dramatically improved with the use of modern combination therapies. Such aggressive treatments, however, entail chronic complications. In the present study, we assessed the functional, psychological, and familial status of long-term survivors of osteosarcoma treated at our institution. MATERIALS AND METHODS: Fifteen long-term survivors of osteosarcoma were evaluated for functional and psychological sequelae. Functional assessment was based on a method described by Enneking et al. Psychological assessment was based on General Health Questionnaire 28, Inventory Scale for Traumatic Neurosis, and Family System Test. MAIN RESULTS: Ten patients showed mild functional impairments; only five patients were handicapped more seriously. Depressive symptoms were diagnosed in four patients. A total of six patients revealed unbalanced family structures, including three of the four patients with depressive symptoms, all four patients with symptoms of posttraumatic stress disorder, and five of seven patients who showed poor emotional acceptance. CONCLUSIONS: Osteosarcoma survivors will generally recover good functional performance. Only a minority of them remain seriously impaired. One third of the patients present depressive symptoms and posttraumatic stress disorder. Poor coping is closely associated with unbalanced family structures. Therefore, the psychological and familial situation of patients with newly diagnosed osteosarcoma should be carefully assessed.


Assuntos
Características da Família , Osteossarcoma , Sobreviventes/psicologia , Adolescente , Adulto , Criança , Feminino , Humanos , Masculino , Osteossarcoma/tratamento farmacológico , Inquéritos e Questionários , Suíça
4.
Ann Oncol ; 18(1): 64-69, 2007 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-17030543

RESUMO

BACKGROUND: The aim of this study was to evaluate the efficacy and tolerability of fulvestrant, an estrogen receptor antagonist, in postmenopausal women with hormone-responsive tumors progressing after aromatase inhibitor (AI) treatment. PATIENTS AND METHODS: This is a phase II, open, multicenter, noncomparative study. Two patient groups were prospectively considered: group A (n=70) with AI-responsive disease and group B (n=20) with AI-resistant disease. Fulvestrant 250 mg was administered as intramuscular injection every 28 (+/-3) days. RESULTS: All patients were pretreated with AI and 84% also with tamoxifen or toremifene; 67% had bone metastases and 45% liver metastases. Fulvestrant administration was well tolerated and yielded a clinical benefit (CB; defined as objective response or stable disease [SD] for >or=24 weeks) in 28% (90% confidence interval [CI] 19% to 39%) of patients in group A and 37% (90% CI 19% to 58%) of patients in group B. Median time to progression (TTP) was 3.6 (95% CI 3.0 to 4.8) months in group A and 3.4 (95% CI 2.5 to 6.7) months in group B. CONCLUSIONS: Overall, 30% of patients who had progressed following prior AI treatment gained CB with fulvestrant, thereby delaying indication to start chemotherapy. Prior response to an AI did not appear to be predictive for benefit with fulvestrant.


Assuntos
Antineoplásicos Hormonais/uso terapêutico , Inibidores da Aromatase/uso terapêutico , Neoplasias da Mama/tratamento farmacológico , Resistencia a Medicamentos Antineoplásicos , Estradiol/análogos & derivados , Neoplasias Hormônio-Dependentes/tratamento farmacológico , Pós-Menopausa , Adulto , Idoso , Idoso de 80 Anos ou mais , Neoplasias da Mama/secundário , Progressão da Doença , Estradiol/uso terapêutico , Moduladores de Receptor Estrogênico/uso terapêutico , Feminino , Fulvestranto , Humanos , Pessoa de Meia-Idade , Neoplasias Hormônio-Dependentes/patologia , Receptores de Estrogênio/metabolismo , Terapia de Salvação , Resultado do Tratamento
5.
Br J Cancer ; 91(11): 1893-901, 2004 Nov 29.
Artigo em Inglês | MEDLINE | ID: mdl-15545973

RESUMO

We evaluated quality of life (QL) and quality-adjusted survival in International Breast Cancer Study Group Trial IX, a randomised trial including 1669 eligible patients receiving tamoxifen for 5 years or three prior cycles of cyclophosphamide, methotrexate and 5-fluorouracil (CMF) followed by 57 months tamoxifen. During the time with CMF toxicity (Tox), without symptoms and toxicity (TWiST), and following relapse (Rel), patients scored their QL indicators and a utility indicator for subjective health estimation between 'perfect' and 'worst' health. Scores were averaged within Tox, TWiST and Rel and transformed to utilities. Mean durations for the three transition times were weighted with utilities to obtain mean quality-adjusted TWiST (Q-TWiST). Patients receiving CMF reported significantly worse scores for most QL domains at month 3, but less hot flushes. After completing chemotherapy, there were no differences by treatment groups. Benefits evaluated by Q-TWiST favoured the additional chemotherapy. CMF provided 3 more months of Q-TWiST for patients with ER-negative tumours, but CMF provided no benefit in Q-TWiST for patients with ER-positive tumours. Q-TWiST analysis based on patient ratings is feasible in large-scale cross-cultural clinical trials.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias da Mama/tratamento farmacológico , Qualidade de Vida , Adulto , Idoso , Idoso de 80 Anos ou mais , Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Neoplasias da Mama/mortalidade , Ciclofosfamida/administração & dosagem , Feminino , Fluoruracila/administração & dosagem , Humanos , Linfonodos/patologia , Masculino , Metotrexato/administração & dosagem , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Pós-Menopausa , Receptores de Estrogênio/metabolismo , Taxa de Sobrevida , Tamoxifeno/administração & dosagem
6.
Br J Cancer ; 85(11): 1713-21, 2001 Nov 30.
Artigo em Inglês | MEDLINE | ID: mdl-11742493

RESUMO

In small-cell lung carcinoma (SCLC) tumour cell contamination of leukaphereses is unknown. The present study was performed to define appropriate markers for reverse transcriptase polymerase chain reaction (RT-PCR), then to assess the contamination rate of leukaphereses and corresponding bone marrow samples. Immunocytochemistry (ICC) and RT-PCR methods were also compared. Among the 33 patients included, analyses were performed in 16 who had multiple leukaphereses and 17 who had only bone marrow. Leukapheresis products and bone marrow were analysed by ICC using several specific monoclonal antibodies against neural-cell adhesion molecule (N-CAM), epithelial glycoprotein (EGP-40) and cytokeratins (CK). Samples were also analyzed by RT-PCR for expression for N-CAM, synaptophysin, neuron-specific enolase, chromogranin, cytokeratin-18/-19, CEA, EGP-40, apomucin type 1 (MUC-1) and human endothelial cell-specific molecule (ESM-1). Using ICC staining, contaminating tumour cells were detected in 34% of leukaphereses (27% in patients with limited disease and 43% in those with extensive disease). N-CAM was the most reliable marker for detection of contamination. For RT-PCR, CK-19 and CEA were the only appropriate markers. Positive signal rate in leukaphereses increased to 78% (89% for patients with limited disease and 67% for extensive disease). In bone marrow, both techniques were in agreement whereas in leukaphereses, RT-PCR was better than ICC. A high rate of tumour cell contamination was demonstrated not only in bone marrow but also in leukaphereses from SCLC patients. The most appropriate technique was RT-PCR mainly in patients with limited disease.


Assuntos
Carcinoma de Células Pequenas/terapia , Leucaférese , Neoplasias Pulmonares/terapia , Proteínas de Neoplasias , Células Neoplásicas Circulantes/patologia , Proteoglicanas , Adulto , Idoso , Antígenos de Neoplasias/análise , Antígenos de Neoplasias/genética , Medula Óssea/química , Medula Óssea/patologia , Antígeno Carcinoembrionário/análise , Antígeno Carcinoembrionário/genética , Carcinoma de Células Pequenas/sangue , Moléculas de Adesão Celular/análise , Moléculas de Adesão Celular/genética , Cromograninas/análise , Cromograninas/genética , Molécula de Adesão da Célula Epitelial , Feminino , Mucinas Gástricas/análise , Mucinas Gástricas/genética , Humanos , Imuno-Histoquímica , Queratinas/análise , Queratinas/genética , Neoplasias Pulmonares/sangue , Masculino , Pessoa de Meia-Idade , Células Neoplásicas Circulantes/metabolismo , Moléculas de Adesão de Célula Nervosa/análise , Moléculas de Adesão de Célula Nervosa/genética , Fosfopiruvato Hidratase/análise , Fosfopiruvato Hidratase/genética , Proteínas/análise , Proteínas/genética , RNA Neoplásico/genética , RNA Neoplásico/metabolismo , Reação em Cadeia da Polimerase Via Transcriptase Reversa , Sinaptofisina/análise , Sinaptofisina/genética
7.
Oncology ; 61 Suppl 1: 35-41, 2001.
Artigo em Inglês | MEDLINE | ID: mdl-11598413

RESUMO

Platinum-based chemotherapy is considered standard treatment for advanced non-small-cell lung cancer (NSCLC). However, toxicity of most platinum-based regimens is substantial and requires close monitoring and supportive care. Over the past decade, paclitaxel, docetaxel, vinorelbine, gemcitabine, irinotecan, and topotecan have been introduced into the clinic. These newer agents have shown promising activity against NSCLC with a favorable toxicity profile as single agents. For patients with metastatic NSCLC, palliation is the main goal of therapy. Therefore, treatment should be easy to administer on an outpatient basis. We explored a novel combination therapy avoiding platinum. Patients with recurrent or metastatic NSCLC were treated with intravenous (i.v.) topotecan (0.5-1.0 mg/m(2)/day x 5) and i.v. vinorelbine (20-30 mg/m(2)/day on day 1 and day 5) in 21-day cycles. Dose-limiting toxicity (DLT) was defined separately with or without the addition of granulocyte colony-stimulating factor (G-CSF) support. Twenty-nine patients have been enrolled to date. At i.v. topotecan doses of 0.75-1.0 mg/m(2)/day and i.v. vinorelbine of 25 mg/m(2)/day, neutropenia was frequent but of short duration (<7 days). The DLT of i.v. topotecan (0.85 mg/m(2)) in the absence of G-CSF support was based on myelosuppression with neutropenic fever. With the addition of G-CSF, a DLT has not been reached. Nonhematologic toxicities included mild to moderate fatigue and constipation. An overall clinical response rate of 42% was achieved, with responses noted at all dose levels. At a short median follow-up of 15 months, the median survival for all patients is 13 months. In conclusion, the combination regimen of topotecan and vinorelbine is feasible for outpatient administration and is well tolerated with less toxicity than platinum-based regimens. Preliminary response data demonstrate good tumor activity, suggesting that this regimen could make an excellent palliative treatment for advanced NSCLC.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Carcinoma Pulmonar de Células não Pequenas/tratamento farmacológico , Cisplatino/administração & dosagem , Neoplasias Pulmonares/tratamento farmacológico , Vimblastina/análogos & derivados , Adulto , Idoso , Carcinoma Pulmonar de Células não Pequenas/mortalidade , Carcinoma Pulmonar de Células não Pequenas/patologia , Relação Dose-Resposta a Droga , Esquema de Medicação , Feminino , Seguimentos , Humanos , Infusões Intravenosas , Neoplasias Pulmonares/mortalidade , Neoplasias Pulmonares/patologia , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Sensibilidade e Especificidade , Taxa de Sobrevida , Topotecan/administração & dosagem , Resultado do Tratamento , Vimblastina/administração & dosagem , Vinorelbina
10.
Breast Cancer Res Treat ; 59(3): 279-87, 2000 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-10832598

RESUMO

OBJECTIVE: The association of known prognostic factors with immune cell counts and beta2-microglobulin and soluble IL-2 receptor (sIL-2r) serum levels as markers of activation of the immune system was investigated in breast cancer. METHODS: Two hundred thirty five operated stage I and II breast cancer patients to receive adjuvant treatment in IBSCG trials were assessed in a cross-sectional study immediately before the first treatment. Leukocytes, lymphocytes and lymphocyte subset counts, beta2-microglobulin and sIL-2r serum levels were assessed as immunological parameters. Prognostic factors were tumor load, receptor status, patient characteristics, and contextual factors of the immune assessment (such as time of the day, time since surgery, type of surgery, concomitant medication, co-morbidity). RESULTS: In an operated early stage breast cancer patient population, tumor load was not associated with immune cell counts, beta2-microglobulin, or sIL-2r before adjuvant treatment. There was a pattern of association of prognostically favorable factors such as estrogen receptor (ER) positive tumor and older age with higher NK cell counts or with beta2-microglobulin or sIL-2r. In addition, immune cell counts and the markers of activation of the immune system were affected by several contextual factors, such as diurnal variability, time since surgery, type of surgery, and the intake of concomitant medication. CONCLUSIONS: The association of NK cell counts and beta2-microglobulin or sIL-2r serum levels with prognostically favorable factors such as ER positive tumor and older age supports the assumption that the immune system plays a role in the course of early breast cancer. The exact nature of this role requires further study.


Assuntos
Neoplasias da Mama/imunologia , Receptores de Interleucina-2/sangue , Microglobulina beta-2/sangue , Adulto , Idoso , Neoplasias da Mama/sangue , Quimioterapia Adjuvante , Estudos de Coortes , Estudos Transversais , Feminino , Humanos , Imunidade Celular , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Prognóstico , Ensaios Clínicos Controlados Aleatórios como Assunto , Suíça
11.
Schweiz Med Wochenschr ; 130(13): 478-84, 2000 Apr 01.
Artigo em Francês | MEDLINE | ID: mdl-10812643

RESUMO

61 autologous transplantations for haematological malignancies have been performed with peripheral blood stem cells in 60 patients. 26 grafts were performed for non-Hodgkin's lymphoma (18 patients were transplanted in first remission, 8 patients after progression or relapse), 13 for multiple myeloma, 7 for Hodgkin's disease and 10 for acute myeloid leukaemia. One patient died from thrombosis of the portal vein. 38 patients were in complete remission 29 months (extremes: 14-44) after transplantation. 21 of 60 patients progressed or relapsed after transplantation, and 14 died. No death was attributed to graft failure, infection or haemorrhage. In conclusion, transplantation with peripheral blood stem cells is well tolerated, has a low toxicity rate, and can be used safely for patients with haematological malignancies.


Assuntos
Neoplasias Hematológicas/terapia , Transplante de Células-Tronco Hematopoéticas , Adolescente , Adulto , Idoso , Feminino , Seguimentos , Humanos , Leucemia Mieloide Aguda/sangue , Linfoma não Hodgkin/sangue , Masculino , Pessoa de Meia-Idade , Mieloma Múltiplo/sangue , Estudos Retrospectivos , Transplante Autólogo
12.
J Clin Oncol ; 17(11): 3531-9, 1999 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-10550151

RESUMO

PURPOSE: To determine the feasibility and safety of multiple sequential courses of high-dose chemotherapy and peripheral-blood progenitor cells (PBPCs) administered in a multicenter setting to patients with small-cell lung cancer. PATIENTS AND METHODS: Sixty-nine patients (limited disease, n = 30; extensive disease, n = 39) treated at 15 European centers were scheduled to receive three courses of high-dose chemotherapy with ifosfamide 10 g/m(2), carboplatin 1200 mg/m(2), and etoposide 1200 mg/m(2) (ICE) divided over 4 days at 28-day intervals. PBPCs were harvested before treatment and mobilized with epirubicin 150 mg/m(2) administered via an intravenous bolus divided over 2 days and filgrastim 5 microg/kg/d administered subcutaneously. RESULTS: The performed leukaphereses (one to five per patient) yielded a median of 16.6 x 10(6)/kg (range, 1.0 to 96.6 x 10(6)/kg) CD34(+) cells, which was sufficient for three reinfusions. Fifty patients (72%) completed the treatment according to schedule. Nine patients completed two courses, and six patients completed one course of treatment. The increase in dose-intensity was 290% that of a standard ICE regimen. The median duration of myelosuppression was similar between courses, namely 4 days (range, 1 to 12 days) for leukocytes less than 0.5 x 10(9)/L and 4 days (range, 0 to 22 days) for thrombocytes less than 20 x 10(9)/L. Febrile neutropenia developed in 66% of courses, severe diarrhea in 14%, mucositis in 10%, and nausea and vomiting in 21% of courses. There were six cases of toxic death (9%), most of which occurred in the first year of accrual and thus were attributable to the learning curve. The antitumor effect of the regimen was reflected in an 86% remission rate (95% confidence interval [CI], 74% to 93%), with 51% of patients achieving a complete response (95% CI, 38% to 63%). Median overall survival was 18 months for patients with limited disease and 11 months for patients with extensive disease. CONCLUSION: This multiple sequential high-dose ICE regimen could be safely administered on a multicenter basis to patients with small-cell lung cancer. The dose-intensity could be increased to 290% that of standard ICE regimen. The benefit of this approach is currently being tested in a randomized trial that aims to double the long-term rate of survival for patients with small-cell lung cancer.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Carcinoma de Células Pequenas/tratamento farmacológico , Fator Estimulador de Colônias de Granulócitos/uso terapêutico , Células-Tronco Hematopoéticas/metabolismo , Neoplasias Pulmonares/tratamento farmacológico , Adulto , Idoso , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Carcinoma de Células Pequenas/patologia , Cisplatino/administração & dosagem , Cisplatino/efeitos adversos , Relação Dose-Resposta a Droga , Etoposídeo/administração & dosagem , Etoposídeo/efeitos adversos , Europa (Continente) , Estudos de Viabilidade , Feminino , Filgrastim , Humanos , Ifosfamida/administração & dosagem , Ifosfamida/efeitos adversos , Modelos Logísticos , Neoplasias Pulmonares/patologia , Masculino , Pessoa de Meia-Idade , Metástase Neoplásica , Proteínas Recombinantes
13.
Ann Oncol ; 10(7): 831-8, 1999 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-10470431

RESUMO

BACKGROUND: The DNA repair protein O6-alkylguanine-DNA alkyl transferase (AT) mediates resistance to chloroethylnitrosoureas. Agents depleting AT such as DTIC and its new analogue temozolomide (TMZ) can reverse resistance to chloroethylnitrosoureas. We report the results of a dose finding study of TMZ in association with fotemustine. PATIENTS AND METHODS: Twenty-four patients with metastatic melanoma or recurrent glioma were treated with escalating dose of oral or intravenous TMZ ranging from 300 to 700 mg/m2, divided over two days. Fotemustine 100 mg/m2 was given intravenously on day 2, 4 hours after TMZ. AT depletion was measured in peripheral blood mononuclear cells (PBMCs) and in selected cases in melanoma metastases and was compared to TMZ pharmacokinetics. RESULTS: The maximum tolerated dose (MTD) of TMZ was 400 mg/m2 (200 mg/m2/d) when associated with fotemustine the 2nd day with myelosuppression as dose limiting toxicity. The decrease of AT level in PBMCs was progressive and reached 34% of pretreatment values on day 2. There was however wide interindividual variability. AT reduction was neither dose nor route dependent and did not appear to be related to TMZ systemic exposure (AUC). In the same patients, AT depletion in tumour did not correlate with the decrease of AT observed in PBMCs. CONCLUSIONS: PBMCs may not be used as a surrogate of tumour for AT depletion. Further study should concentrate on the pharmacokinetic pharmacodynamic relationship in tumour to provide the basis for individually tailored therapy.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Linfócitos/enzimologia , O(6)-Metilguanina-DNA Metiltransferase/sangue , Adulto , Idoso , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Protocolos de Quimioterapia Combinada Antineoplásica/farmacocinética , Protocolos de Quimioterapia Combinada Antineoplásica/farmacologia , Neoplasias Encefálicas/sangue , Neoplasias Encefálicas/tratamento farmacológico , Neoplasias Encefálicas/enzimologia , Dacarbazina/administração & dosagem , Dacarbazina/efeitos adversos , Dacarbazina/análogos & derivados , Relação Dose-Resposta a Droga , Esquema de Medicação , Resistencia a Medicamentos Antineoplásicos , Feminino , Glioma/sangue , Glioma/tratamento farmacológico , Glioma/enzimologia , Humanos , Masculino , Melanoma/sangue , Melanoma/tratamento farmacológico , Melanoma/enzimologia , Pessoa de Meia-Idade , Compostos de Nitrosoureia/administração & dosagem , Compostos de Nitrosoureia/efeitos adversos , Compostos Organofosforados/administração & dosagem , Compostos Organofosforados/efeitos adversos , Temozolomida
14.
Support Care Cancer ; 7(3): 149-53, 1999 May.
Artigo em Inglês | MEDLINE | ID: mdl-10335933

RESUMO

The effects and interaction of endocrine and cytotoxic adjuvant treatment on measures of cellular immunity were assessed in 41 stage I-II breast cancer patients from International Breast Cancer Study Group trials. Counts of lymphocytes and lymphocyte subsets [(T, T4, T8, B, natural killer (NK) and activated T (AT) cells] were assessed by flow cytometry immediately before adjuvant therapy at baseline and on day 1 of the 3rd cycle. Twenty-two patients received cyclophosphamide, methotrexate and 5-fluorouracil (CMF), 7 CMF and tamoxifen (TAM), and 12 TAM alone. On day 1 of the 3rd cycle the counts of total lymphocytes (P = 0.003) and all lymphocyte subsets (P<0.05) except AT cells were significantly lower than baseline in the CMF treatment group. There was no significant change in the CMF+TAM or in the TAM treatment group. The combination of CMF and TAM resulted in less pronounced decrease in lymphocyte and subset counts from baseline to day 1 of the 3rd cycle. It seems possible that there is an interaction between TAM with CMF that affects lymphocyte and lymphocyte subset counts during cytotoxic treatment.


Assuntos
Antineoplásicos Hormonais/farmacologia , Protocolos de Quimioterapia Combinada Antineoplásica/farmacologia , Subpopulações de Linfócitos B/efeitos dos fármacos , Neoplasias da Mama/imunologia , Subpopulações de Linfócitos T/efeitos dos fármacos , Tamoxifeno/farmacologia , Adulto , Idoso , Antineoplásicos Hormonais/uso terapêutico , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias da Mama/tratamento farmacológico , Quimioterapia Adjuvante , Cisplatino/efeitos adversos , Cisplatino/farmacologia , Cisplatino/uso terapêutico , Terapia Combinada , Interações Medicamentosas , Feminino , Citometria de Fluxo , Fluoruracila/efeitos adversos , Fluoruracila/farmacologia , Fluoruracila/uso terapêutico , Humanos , Metotrexato/efeitos adversos , Metotrexato/farmacologia , Metotrexato/uso terapêutico , Pessoa de Meia-Idade , Tamoxifeno/efeitos adversos , Tamoxifeno/uso terapêutico
16.
Br J Haematol ; 103(3): 618-29, 1998 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-9858209

RESUMO

The transplantation of mobilized progenitor cells after high-dose chemotherapy shortens haemopoietic engraftment. CD34 cell subsets were examined in 20 consecutive mobilized progenitor cell collections obtained from patients with solid tumours that had not been previously treated. The analysis of CD34 cells was based on the expression of intracellular antigens, surface antigens including CD38, and cell size using multi-dimensional flow cytometry. We also correlated the numbers of stem cell subsets reinfused to haemopoietic recovery. The majority of CD34+ cells expressed CD13 and CD33. A significant proportion was cytoplasmic myeloperoxidase (cMPO) positive. CD34+ MPO+ cells increased significantly in late collections. MPO expression was related to cell size. Cells expressing CD13 also increased in late collections in parallel to CFU-GM count. Small subpopulations of CD34+ CD38+ were committed to B cells, T cells and erythroid cell lineages. A small population expressing the megakaryocytic antigen had a small size and were predominantly CD38-. A minor subpopulation expressed stem cells antigens. These were significantly higher in late collections (CD34+ Thy-1+ and CD34+ CD33-). After mobilization, patients received three cycles of intensive chemotherapy followed by reinfusion of mobilized progenitors (5.45 x 10(6)/kg CD34+ cells, range 3.4-11.88). The numbers of reinfused CD34 cells or the individual subsets did not influence recovery of leucocytes (9 d) or platelets (9 d). In conclusion, the numbers of stem cells and their subsets differed between collections and, in unpretreated patients receiving intensive chemotherapy, there was no delayed engraftment when sufficient numbers of stem cells were reinfused. The recovery period was short and not correlated to any stem cell subsets.


Assuntos
Antígenos CD34/metabolismo , Células-Tronco Hematopoéticas/classificação , Adulto , Hematopoese/fisiologia , Mobilização de Células-Tronco Hematopoéticas/métodos , Células-Tronco Hematopoéticas/imunologia , Humanos , Imunofenotipagem/métodos , Leucaférese , Pessoa de Meia-Idade
17.
Blood ; 92(6): 2041-52, 1998 Sep 15.
Artigo em Inglês | MEDLINE | ID: mdl-9731062

RESUMO

Bcl-2 and bcl-xL function as suppressors of programmed cell death. The expression of bcl-2 protein in vivo is associated with long-lived hematopoietic cells such as mature lymphocytes and early myeloid progenitors. Bcl-xL, a homologue of bcl-2, is also expressed in lymphocytes and thymocytes. In contrast, the bcl-2-related proteins (bax, bad, and bak) act by promoting apoptotic cell death as shown from their expression in hematopoietic cell lines. We analyzed the expression of bcl-2 and bcl-x proteins in hematopoietic precursors obtained from various cell sources in adult mobilized peripheral blood collected from 13 patients with solid tumors, 8 adult bone marrow, and 12 umbilical cord blood. The analysis was based on the expression of the proliferation and activation specific antigens, CD38 and class II (HLA-DR). Similarly, we analyzed the expression of bcl-2-related proteins bcl-xL, bax, bad, and bak before and during ex-vivo expansion. Hematopoietic precursors expressing strongly the CD34 antigen (CD34(s+)) and lacking CD38 or HLA-DR expression were analyzed by using three-color immunofluorescence staining. The majority of CD34(+) cells expressed bcl-2 and unexpectedly showed a bimodal distribution of low and high expression. More cells that lacked or expressed low density CD38 expressed low bcl-2 than the more differentiated counterparts (those with high density CD38). Immaturity (ie, little or no HLA-DR) is associated with the expression of low bcl-2 compared with HLA-DR+. However, HLA-DR-/low population contained a lower number of cells expressing low bcl-2 (30% to 40%) than CD38(-/low) in comparable samples. The hematopoietic precursors with bcl-2(low) and bcl-2(high) formed a homogeneous population of undifferentiated lymphoid-like cells having a similar forward scatter. These cells expressed strongly the bcl-xL protein (>95%) but were bax low (4% to 12%), bad low (0% to 0.8%), and bak low (0% to 3%). The expression of apoptosis specific protein (ASP) was also low (3.4% +/- 3.1%) as was Annexin V. In addition, the CD34(+)/CD38(-) showed low cell cycle activity (<2.2%). Induction of apoptosis by overnight incubation of CD34 cells in serum-deprived medium resulted in the upregulation of bcl-2 as a single population histogram. Thus, these results suggest that in quiescent hematopoietic precursors, the bcl-2 protein plays a less prominent role as a survival promoter than bcl-xL and that the low bcl-2 expression did not promote apoptosis. During day 10 of ex vivo expansion of CD34(+) cells in liquid culture containing stem cell factor, interleukin-3 (IL-3), IL-6, IL-1beta, and erythropoietin, the CD34(+)/CD38(-) cells expressed high bcl-2 as a single population histogram, and greater than 90% were bcl-xL high. However, the expression of pro- and apoptotic antigens increased: bax (10% to 15%), bad (5% to 8%), bak (6% to 14%), and ASP (6% to 10%). These results show the importance of monitoring the expression of these proteins when defining the culture conditions for ex vivo expansion.


Assuntos
Antígenos CD , Apoptose/fisiologia , Células-Tronco Hematopoéticas/citologia , ADP-Ribosil Ciclase , ADP-Ribosil Ciclase 1 , Adulto , Antígenos CD34/análise , Antígenos de Diferenciação/biossíntese , Proteínas de Transporte/biossíntese , Ciclo Celular/fisiologia , Citometria de Fluxo , Células-Tronco Hematopoéticas/metabolismo , Humanos , Glicoproteínas de Membrana , Proteínas de Membrana/biossíntese , Pessoa de Meia-Idade , NAD+ Nucleosidase/biossíntese , Proteínas Proto-Oncogênicas/biossíntese , Proteínas Proto-Oncogênicas c-bcl-2/biossíntese , Células Tumorais Cultivadas , Proteína Killer-Antagonista Homóloga a bcl-2 , Proteína X Associada a bcl-2 , Proteína de Morte Celular Associada a bcl , Proteína bcl-X
18.
Br J Cancer ; 77(6): 985-91, 1998 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-9528845

RESUMO

We wished to develop and validate a simple linear analogue self-assessment (LASA) scale to assess utility values in multicentre, multicultural breast cancer trials. We compared two variants of a LASA scale (score range 0-100) with different anchoring points [perfect health to worst possible health (subjective health estimation, SHE) and perfect health to death (SHED)] in 84 patients with advanced breast cancer. Feasibility was explored in the first 48 patients interviewed. Values from the LASA scales were compared with each other and with a time trade off (TTO) interview. Scores from the two LASA scales were highly correlated (r=0.8, P < 0.0001, Spearman). The relationship between TTO interview and SHE was confirmed with tests for trend across ordered groups (linear-trend test P < 0.001). Most patients preferred SHE to SHED. SHE scores (in which high scores indicate high-health-state values) were significantly different by type of treatment, time from diagnosis and age. Thus, significantly different mean SHE scores were obtained from patients receiving no treatment or hormone therapy, mild and intensive chemotherapy (ANOVA P=0.03) and from patients with diagnosis 2 years, 2-5 years, 5-10 years and more than 10 years before interview (ANOVA P=0.02). Older patients (> 56 years) had a lower mean on the SHE scale (53 vs 61; ANOVA P=0.04). We found that the two versions of the LASA scale were equivalent for clinical purposes. SHE appeared to provide a feasible, patient-preferred and valid alternative to lengthy TTO interviews in assessing the value patients attach to their present state of health in large-scale cancer clinical trials.


Assuntos
Atitude Frente a Saúde , Neoplasias da Mama/psicologia , Nível de Saúde , Autoavaliação (Psicologia) , Adulto , Afeto , Fatores Etários , Idoso , Análise de Variância , Neoplasias da Mama/patologia , Neoplasias da Mama/terapia , Protocolos Clínicos , Ensaios Clínicos como Assunto/métodos , Feminino , Seguimentos , Humanos , Metástase Linfática , Prontuários Médicos , Pessoa de Meia-Idade , Estudos Multicêntricos como Assunto/métodos , Receptores de Estrogênio , Recidiva , Análise de Regressão , Reprodutibilidade dos Testes
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