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1.
J Med Case Rep ; 12(1): 199, 2018 Jul 03.
Article in English | MEDLINE | ID: mdl-29966534

ABSTRACT

BACKGROUND: Diabetes and myelodysplastic syndrome are two conditions that may coexist in a single patient, since both diseases are prevalent in the elderly. The pathophysiology of myelodysplastic syndrome involves recurrent genetic mutations, especially in genes controlling epigenetic regulation. Although the pathophysiology of diabetes is not well understood, several studies suggest a role of epigenetics in type 2 diabetes. CASE PRESENTATION: We report here for the first time the case of a 75-year-old Caucasian man who was treated for both diabetes and acute myeloid leukemia secondary to myelodysplastic syndrome, with a temporal association between glycemic dysregulation and the intake of 5-azacitidine. In fact, 2-3 days after starting each 7-day cycle of 5-azacitidine, he reported higher blood glucose levels, requiring an increased dose of self-administered insulin. CONCLUSION: This observation could help to understand the pathophysiology of these two conditions and could encourage physicians to monitor blood glucose levels in patients under hypomethylating agent with a history of diabetes.


Subject(s)
Antimetabolites, Antineoplastic/adverse effects , Azacitidine/adverse effects , Diabetes Mellitus, Type 2/metabolism , Glucose/metabolism , Leukemia, Myeloid, Acute/drug therapy , Myelodysplastic Syndromes/drug therapy , Aged , Antimetabolites, Antineoplastic/therapeutic use , Azacitidine/therapeutic use , Diabetes Mellitus, Type 2/complications , Diabetes Mellitus, Type 2/genetics , Diabetes Mellitus, Type 2/physiopathology , Epigenesis, Genetic , Humans , Leukemia, Myeloid, Acute/etiology , Leukemia, Myeloid, Acute/genetics , Leukemia, Myeloid, Acute/physiopathology , Male , Myelodysplastic Syndromes/complications , Myelodysplastic Syndromes/genetics , Myelodysplastic Syndromes/physiopathology
2.
J Clin Oncol ; 35(4): 387-393, 2017 Feb.
Article in English | MEDLINE | ID: mdl-28129526

ABSTRACT

Purpose Elderly patients with acute myeloid leukemia (AML) have a poor prognosis, and innovative maintenance therapy could improve their outcomes. Androgens, used in the treatment of aplastic anemia, have been reported to block proliferation of and initiate differentiation in AML cells. We report the results of a multicenter, phase III, randomized open-label trial exploring the benefit of adding androgens to maintenance therapy in patients 60 years of age or older. Patients and Methods A total of 330 patients with AML de novo or secondary to chemotherapy or radiotherapy were enrolled in the study. Induction therapy included idarubicin 8 mg/m2 on days 1 to 5, cytarabine 100 mg/m2 on days 1 to 7, and lomustine 200 mg/m2 on day 1. Patients in complete remission or partial remission received six reinduction courses, alternating idarubicin 8 mg/m2 on day 1, cytarabine 100 mg/m2 on days 1 to 5, and a regimen of methotrexate and mercaptopurine. Patients were randomly assigned to receive norethandrolone 10 or 20 mg/day, according to body weight, or no norethandrolone for a 2-year maintenance therapy regimen. The primary end point was disease-free survival by intention to treat. Secondary end points were event-free survival, overall survival, and safety. This trial was registered at www.ClinicalTrials.gov identifier NCT00700544. Results Random assignment allotted 165 patients to each arm; arm A received norethandrolone, and arm B did not receive norethandrolone. Complete remission or partial remission was achieved in 247 patients (76%). The Schoenfeld time-dependent model showed that norethandrolone significantly improved survival for patients still in remission at 1 year after induction. In arms A and B, respectively, 5-year disease-free survival was 31.2% and 16.2%, event-free survival was 21.5% and 12.9%, and overall survival was 26.3% and 17.2%. Norethandrolone improved outcomes irrelevant to all prognosis factors. Only patients with baseline leukocytes > 30 × 109/L did not benefit from norethandrolone. Conclusion This study demonstrates that maintenance therapy with norethandrolone significantly improves survival in elderly patients with AML without increasing toxicity.


Subject(s)
Androgens/administration & dosage , Antineoplastic Combined Chemotherapy Protocols/administration & dosage , Leukemia, Myeloid, Acute/drug therapy , Age Factors , Aged , Female , Humans , Male , Middle Aged
3.
Leuk Lymphoma ; 57(7): 1546-59, 2016 07.
Article in English | MEDLINE | ID: mdl-26758913

ABSTRACT

The maximum tolerated dose (MTD) of quisinostat + bortezomib + dexamethasone in patients with relapsed multiple myeloma was evaluated in a phase-1b, open-label, multicenter, '3 + 3' dose-escalation study. Patients received escalating doses of oral quisinostat (6 mg [n = 3], 8 mg [n = 3], 10 mg [n = 6], and 12 mg [n = 6] on days 1, 3, and 5/week) plus subcutaneous bortezomib (1.3 mg/m(2)) and oral dexamethasone (20 mg) in cycles of 21 (cycles 1-8) or 35 d (cycles 9-11) until MTD was determined. No dose-limiting toxicities were reported in 6/8 mg groups except ventricular fibrillation (Grade 4 cardiac arrest, n = 1 [10 mg] cycle 6) and clinically significant cardiac toxicities (Grade 3 QTc prolongation, Grade 3 atrial fibrillation, n = 2 [12 mg]). Thrombocytopenia (n = 11), asthenia (n = 10), and diarrhea (n = 12) were most common adverse events. Overall, 88.2% patients achieved treatment response, median duration of response, and median progression-free survival were 9.4 and 8.2 months, respectively. The MTD of quisinostat was established as 10 mg thrice weekly oral dose with bortezomib + dexamethasone.


Subject(s)
Antineoplastic Combined Chemotherapy Protocols/therapeutic use , Multiple Myeloma/drug therapy , Multiple Myeloma/pathology , Antineoplastic Combined Chemotherapy Protocols/adverse effects , Biomarkers , Bortezomib/administration & dosage , Dexamethasone/administration & dosage , Drug Monitoring , Female , Histone Deacetylase Inhibitors/administration & dosage , Histone Deacetylase Inhibitors/adverse effects , Histone Deacetylase Inhibitors/therapeutic use , Humans , Hydroxamic Acids/administration & dosage , Kaplan-Meier Estimate , Male , Maximum Tolerated Dose , Multiple Myeloma/mortality , Neoplastic Cells, Circulating , Recurrence , Retreatment , Treatment Outcome
4.
Ann Hematol ; 93(1): 147-156, 2014 Jan.
Article in English | MEDLINE | ID: mdl-24232218

ABSTRACT

Maintenance interferon alpha (IFN-α) immunotherapy after induction chemotherapy prolongs progression-free survival (PFS) in untreated follicular lymphoma (FL). Little information is available about IFN-α use in relapsed FL. This study aims to evaluate the benefit of IFN-α as a treatment of low-burden FL relapse. This single-centre retrospective study identified 20 patients treated in 27 cases with IFN-α. We analysed all cases of IFN-α treatment in patients with low-burden FL in clinical relapse (11), partial response (5) or only with molecular minimal residual disease (MRD; 5). The treatment schedule was 3MIU IFN-α three times a week alone (16) or combined with four weekly rituximab (R; 11), according to the institution's policy. Except for the molecular relapses, responses were evaluated according to the IWG 1999 criteria. MRD was defined as a repeatedly detectable BCL2-IgH rearrangement in peripheral blood or bone marrow. In 22 cases of clinical relapses or partial responders, overall response rate was 68 %, with 55 % complete responses. Median PFS was 20.9 months (95 % confidence interval (95 % CI), 0-64.9) with 20.9 and 48.7 months in the IFN and R-IFN groups, respectively (p = 0.4). The median PFS of the five MRD cases was 133 months (95 % CI, 103-165). The Follicular Lymphoma International Prognostic Index score calculated at initiation of IFN-α treatment was predictive of time to relapse (p = 0.036). These results compare favourably with previous reports of the efficacy of R alone, and of R with IFN-α in relapse. Further research is required to explore the role of IFN-α in the management of FL.

5.
Am J Hematol ; 87(12): 1052-6, 2012 Dec.
Article in English | MEDLINE | ID: mdl-22911473

ABSTRACT

The choice of postremission therapy for acute myeloid leukemia (AML) patients is now based on the blasts' cytogenetic and molecular profile. However, the potential benefit of autologous hematopoietic stem cell transplantation (auto-HSCT) according to the NPM1/FLT3-ITD status has been poorly studied in AML patients with a normal karyotype (NK). Therefore, we evaluated the NPM1/FLT3-ITD molecular status in 135 NK-AML patients treated by allogeneic HSCT (allo-HSCT), auto-HSCT, or chemotherapy as consolidation therapy within the GOELAMS LAM-2001 trial. In univariate analyzes, 4-year leukemia-free survival (LFS) and overall survival (OS) were significantly higher for NPM1+/FLT3-ITD- patients compared with patients presenting another molecular profile (61 vs. 43% and 72 vs. 48%, P = 0.02 and P = 0.01, respectively). In the NPM1+/FLT3-ITD- subgroup, there was no benefit for allo-HSCT or auto-HSCT vs. chemotherapy (4-year LFS: 71, 56, and 60%; 4-year OS: 73, 71, and 60%, respectively; P = NS). For patients with other NPM1/FLT3-ITD molecular profiles, allo-HSCT was found to be the best consolidation therapy, whereas auto-HSCT was associated with a better outcome when compared with chemotherapy (allo-HSCT-, auto-HSCT-, and chemotherapy-related 4-year LFS: 68, 44, and 36%, P = 0.004; 4-year OS: 68, 52, and 29%, respectively, P = 0.02). Our study indicates that allo-HSCT and auto-HSCT provide similar outcomes compared with chemotherapy as consolidation for NPM1+/FLT3-ITD- NK-AML patients. For NK-AML patients with an adverse molecular profile, auto-HSCT could represent an alternative therapeutic approach when no human leukocyte antigen-matched allogeneic donor is available.


Subject(s)
Hematopoietic Stem Cell Transplantation/methods , Leukemia, Myeloid, Acute/genetics , Leukemia, Myeloid, Acute/surgery , Nuclear Proteins/genetics , fms-Like Tyrosine Kinase 3/genetics , Adolescent , Adult , Cohort Studies , Cytogenetics , Female , Humans , Leukemia, Myeloid, Acute/drug therapy , Male , Middle Aged , Mutation , Nuclear Proteins/metabolism , Nucleophosmin , Retrospective Studies , Transplantation, Autologous , Treatment Outcome , Young Adult , fms-Like Tyrosine Kinase 3/metabolism
6.
Blood ; 119(12): 2943-8, 2012 Mar 22.
Article in English | MEDLINE | ID: mdl-22323482

ABSTRACT

The LAM2001 phase 3 trial, involving 832 patients with acute myeloid leukemia (AML; median: 46 years) proposed HLA-identical sibling allograft HSCT for all patients with an identified donor. The trial compared reduced-intensity conditioning (RIC) for patients older than 50 years of age (N = 47) and myeloablative conditioning for younger patients (N = 117). BM HSCT was performed in the younger patients, while the older ones received a consolidation course, followed by peripheral blood allo-HSCT using RIC. The incidence of grade II-IV acute GVHD, was 51.9% (95% confidence interval [CI]: 42.1-61.8) and 11.3% (1.6-21.2) after myeloablative or RIC, respectively (P < .0001) and that of chronic GVHD 45.8% (95% CI: 34.8-56.7) and 41.7% (24.7-58.6; NS). Cumulative incidence of nonrelapse mortality at 108 months was 15.8% (95% CI: 9.8-23.2) for myeloablative, and 6.5% (0.2-16.2) for RIC (NS). CI of relapse at 108 months was 21.7% (95% CI: 13.9-28.6) and 28.6% (16.5-43.4; NS). Overall survival at 108 months was 63.4% (95% CI: 54.6-72.2) and 65.8% (52.2-72.2), respectively, after myeloablative or RIC (NS). RIC peripheral blood stem cell allo-HSCT is prospectively feasible for patients between the ages of 51 and 60 years without excess of relapse or nonrelapse mortality, and compares favorably with myeloablative marrow allo-HSCT proposed to younger patients.


Subject(s)
Graft vs Host Disease/epidemiology , Hematopoietic Stem Cell Transplantation/adverse effects , Hematopoietic Stem Cell Transplantation/methods , Leukemia, Myeloid, Acute/surgery , Transplantation Conditioning/methods , Antineoplastic Combined Chemotherapy Protocols/therapeutic use , Bone Marrow Transplantation/adverse effects , Bone Marrow Transplantation/methods , Bone Marrow Transplantation/mortality , Female , Graft vs Host Disease/mortality , Hematopoietic Stem Cell Transplantation/mortality , Humans , Incidence , Kaplan-Meier Estimate , Leukemia, Myeloid, Acute/drug therapy , Leukemia, Myeloid, Acute/mortality , Male , Middle Aged , Peripheral Blood Stem Cell Transplantation/adverse effects , Peripheral Blood Stem Cell Transplantation/methods , Peripheral Blood Stem Cell Transplantation/mortality , Proportional Hazards Models , Remission Induction , Siblings , Transplantation Conditioning/mortality
7.
Haematologica ; 93(10): 1488-94, 2008 Oct.
Article in English | MEDLINE | ID: mdl-18728028

ABSTRACT

BACKGROUND: The effects of L-asparaginase on hemostasis during induction chemotherapy are less defined in adults than in children. We, therefore, studied the effects of L-asparaginase in adult patients. DESIGN AND METHODS: This was a retrospective analysis of 214 patients treated with L-asparaginase (7500 IU/m(2) x 6) for acute lymphoblastic leukemia or lymphoblastic lymphoma. Between day 1 of the induction course and discharge, clinical events, and biological and therapeutic modifications were reviewed. RESULTS: Antithrombin and fibrinogen levels were lower than 60% and 1 g/L in 71% and 73% of patients, respectively. Twenty thromboses occurred in 9.3% of the patients; these patients had a median antithrombin level of 53% (range, 21-111) at the time of the event. Forty-two episodes of bleeding occurred in 31 patients with a median fibrinogen level of 1.3 g/L. Infusions of L-asparaginase were reduced or delayed in 64% of patients due to low fibrinogen and/or antithrombin levels. Fresh-frozen plasma, antithrombin and fibrinogen were infused in 31%, 41% and 52% of patients, respectively. The mean antithrombin and fibrinogen levels increased from 61% to 88% and from 1 to 1.4 g/L after infusion of antithrombin or fibrinogen respectively, while both levels remained unchanged after the infusion of fresh-frozen plasma. In patients who received antithrombin concentrates L-asparaginase injections were less frequently omitted or delayed (53% vs. 72%, p=0.005), the rate of thrombosis was lower (4.8% vs. 12.2%, p=0.04) and the disease-free survival was also reduced (p=0.05). CONCLUSIONS: This retrospective study suggests that antithrombin concentrates may have a beneficial effect on the outcome of adults treated for acute lymphoblastic leukemia with L-asparaginase; prospective studies are essential to confirm this hypothesis.


Subject(s)
Antineoplastic Agents/therapeutic use , Antithrombins/metabolism , Asparaginase/pharmacology , Fibrinogen/metabolism , Precursor Cell Lymphoblastic Leukemia-Lymphoma/blood , Precursor Cell Lymphoblastic Leukemia-Lymphoma/drug therapy , Acute Disease , Adolescent , Adult , Asparaginase/metabolism , Female , Hemorrhage/metabolism , Hemorrhage/pathology , Humans , Male , Middle Aged , Survival Rate , Thrombosis/metabolism , Thrombosis/prevention & control , Treatment Outcome
8.
Biol Blood Marrow Transplant ; 11(6): 448-54, 2005 Jun.
Article in English | MEDLINE | ID: mdl-15931633

ABSTRACT

To improve the results in the treatment of adult acute lymphoblastic leukemia patients, different strategies have been proposed. The intensification could concern the induction and early consolidation phases, the conditioning regimen before allogeneic bone marrow transplantation (alloBMT), or both. We analyzed 2 consecutive trials for adult patients in first remission and with the same prognostic features. The Leucemie Aigue Lymphoblastique Paris-Ouest-France (LALPOF) protocol proposed alloBMT with standard conditioning after a classic induction and intensified consolidation scheme; the Groupe Ouest Est des Leucemies Aigues Lymphoblastiques (GOLEAL1) protocol tested an intensified induction and consolidation course before alloBMT with a reinforced conditioning regimen. The 4-year survival rates after alloBMT for LALPOF and GOELAL1 were, respectively, 71% +/- 12% and 36% +/- 13% ( P = .009). The 4-year disease-free survival reached 75% +/- 11% in the LALPOF study and 69% +/- 13% in the GOELAL1 study ( P = .30). The toxic death rate was significantly lower in the LALPOF (2/18) than in the GOELAL1 (6/15) group. Event-free survival at 4 years was significantly higher in LALPOF than in GOELAL1: 66% +/- 11% and 35% +/- 11%, respectively ( P = .02). For adult acute lymphoblastic leukemia patients in first remission, the intensification of chemotherapy before a reinforced conditioning regimen before alloBMT may lead to an increased toxic death rate.


Subject(s)
Antineoplastic Combined Chemotherapy Protocols/administration & dosage , Bone Marrow Transplantation , Precursor Cell Lymphoblastic Leukemia-Lymphoma/therapy , Transplantation Conditioning , Adolescent , Adult , Bone Marrow Transplantation/mortality , Female , Humans , Male , Precursor Cell Lymphoblastic Leukemia-Lymphoma/mortality , Randomized Controlled Trials as Topic , Survival Analysis , Transplantation Conditioning/methods , Transplantation Conditioning/mortality , Transplantation, Homologous
9.
Blood ; 104(10): 3028-37, 2004 Nov 15.
Article in English | MEDLINE | ID: mdl-15256423

ABSTRACT

Various transplantation strategies have been designed to improve the poor prognosis of adult (ages 15 to 60 years) acute lymphoblastic leukemia (ALL). The GOELAL02 trial evaluated the impact of early allogeneic bone marrow transplantation (alloBMT) or delayed unpurged autologous stem cell transplantation (ASCT) for patients who had no human leukocyte antigen (HLA)-matched sibling donor or who were older than 50 years. Inclusion criteria included at least one of the following: age older than 35 years; non-T-ALL; leukocytosis greater than 30 x 10(9)/L; t(9;22), t(4;11), or t(1; 19); or failure to achieve complete remission (CR) after one induction course. Among 198 patients, the median age was 33 years. The CR rate was 80% with vincristine, idarubicine, L-asparaginase, and randomized intravenous injection or oral steroids (P = nonsignificant [ns]). AlloBMT was performed after 2 consolidation courses while ASCT was delayed after 1 additional reinduction. Intensified conditioning regimen before transplantation included etoposide, cyclophosphamide, and total body irradiation (TBI). Median follow-up was 5.1 years. The median overall survival (OS) was 29 months, with a 6-year OS of 41%. On an intent-to-treat analysis for patients younger than 50 years, alloBMT significantly improved the 6-year OS (75% versus 40% after ASCT; P = .0027). Randomized interferon-alpha maintenance had no effect on relapse or survival after ASCT. In conclusion, the outcome of adult ALL is better after early alloBMT than after delayed ASCT.


Subject(s)
Antineoplastic Combined Chemotherapy Protocols/administration & dosage , Bone Marrow Transplantation , Daunorubicin/analogs & derivatives , Precursor Cell Lymphoblastic Leukemia-Lymphoma/therapy , Adolescent , Adult , Antineoplastic Agents/administration & dosage , Asparaginase/administration & dosage , Combined Modality Therapy , Daunorubicin/administration & dosage , Humans , Interferon-alpha/administration & dosage , Middle Aged , Philadelphia Chromosome , Precursor Cell Lymphoblastic Leukemia-Lymphoma/genetics , Precursor Cell Lymphoblastic Leukemia-Lymphoma/mortality , Prognosis , Remission Induction , Transplantation, Homologous , Treatment Outcome , Vincristine/administration & dosage
10.
Blood ; 102(4): 1202-10, 2003 Aug 15.
Article in English | MEDLINE | ID: mdl-12663440

ABSTRACT

Based on our previous demonstration that quinine could be used clinically to reverse P-glycoprotein-mediated resistance, we designed a multicenter, randomized trial aiming to determine whether quinine would improve the survival of adult patients (15-60 years old) with de novo acute myelogenous leukemia (AML). These patients randomly received (n = 213) or did not receive (n = 212) a 30 mg/kg/day continuous intravenous infusion of quinine in combination with induction chemotherapy combining idarubicine and cytarabine and, depending on bone marrow examination at day 20, an additional course of cytarabine and mitoxantrone. The mean steady-state quinine concentration was 7.8 mg/L and the mean multidrug resistance reversing activity of serum was 1.96. Complete remission (CR) was obtained in 344 patients (80.9%) without significant influence of quinine. Of the patients in complete remission, 82 were assigned to receive HLA-matched bone marrow transplants, whereas 262 were assigned to 2 courses of intensive consolidation chemotherapy, with or without quinine, depending on initial randomization. The 4-year actuarial overall survival (OS) of the 425 eligible patients was 42.0% +/- 2.5%, without significant influence of quinine. Of 160 patients who could be studied, 54 demonstrated rhodamine 123 efflux. In these patients, quinine significantly improved the CR rate from 12 of 25 (48.0%) to 24 of 29 (82.8%) (P =.01). However, there was no significant difference in OS. Neither mdr1 gene nor P-glycoprotein expression influenced the outcome. We conclude that quinine does not improve the survival of adult patients with de novo AML, even though it improves CR rate in a small subgroup of patients defined by rhodamine 123 efflux.


Subject(s)
Antineoplastic Combined Chemotherapy Protocols/therapeutic use , Leukemia, Myeloid, Acute/drug therapy , Quinine/therapeutic use , ATP Binding Cassette Transporter, Subfamily B, Member 1/metabolism , Adolescent , Adult , Cytarabine/administration & dosage , Drug Resistance, Multiple , Drug Resistance, Neoplasm , Drug Synergism , Drug Therapy, Combination , Female , Humans , Leukemia, Myeloid, Acute/metabolism , Male , Middle Aged , Mitoxantrone/administration & dosage , Prospective Studies , Quinine/administration & dosage , Rhodamine 123/pharmacokinetics
11.
Exp Hematol ; 31(1): 89-97, 2003 Jan.
Article in English | MEDLINE | ID: mdl-12543111

ABSTRACT

OBJECTIVES: The aim of this study was designed to compare the in vivo long-term hematopoietic potential of bone marrow and peripheral blood grafts. MATERIALS AND METHODS: Marrow progenitor cell recovery was assessed for up to 4 years in 227 patients. One hundred patients were treated for malignant lymphomas by autologous bone marrow transplantation (BMT) and 127 by peripheral blood progenitor cell transplantation (PBPCT). RESULTS: Marrow progenitor cell counts were decreased for several years with both bone marrow and peripheral blood grafts. They were not different according to the origin of the graft, despite the reduced duration of peripheral blood cell recovery observed after PBPCT. Granulocyte colony-stimulating factor (G-CSF) used for PB graft mobilization and after transplantation resulted in faster neutrophil recovery compared to granulocyte-macrophage colony-stimulating factor (GM-CSF) with no evidence of decreased marrow progenitor cell recoveries. On the other hand, postgraft administration of GM-CSF enhanced long-term colony-forming unit granulocyte-macrophage reconstitution only after BMT. Factors that influenced marrow progenitor cell reconstitution have been identified by univariate and multivariate analysis: age, gender, type of lymphoma, and postgraft administration of hematopoietic growth factors (HGF) for the whole patient group; gender, graft progenitor cell yields, and type of HGF (G-CSF vs GM-CSF) for the PBPCT group; and only type of HGF for the BMT group. Despite faster peripheral blood cell recovery, persistent deficiency of marrow progenitor cells was found several years after PBPCT, as observed after BMT. G-CSF-mobilized PBPCT resulted in faster neutrophil recovery compared to GM-CSF mobilization, with no difference in long-term hematopoietic reconstitution.


Subject(s)
Bone Marrow Transplantation , Granulocyte Colony-Stimulating Factor/pharmacology , Granulocyte-Macrophage Colony-Stimulating Factor/pharmacology , Hematopoietic Stem Cell Mobilization/methods , Lymphoma/therapy , Peripheral Blood Stem Cell Transplantation , Transplantation, Autologous , Adult , Antineoplastic Combined Chemotherapy Protocols/therapeutic use , Child , Colony-Forming Units Assay , Female , Graft Survival , Hematopoiesis , Hodgkin Disease/drug therapy , Hodgkin Disease/mortality , Hodgkin Disease/therapy , Humans , Leukemia, Myeloid/etiology , Lymphoma, Non-Hodgkin/drug therapy , Lymphoma, Non-Hodgkin/mortality , Lymphoma, Non-Hodgkin/therapy , Male , Myelodysplastic Syndromes/etiology , Neoplasms, Second Primary/etiology , Salvage Therapy , Transplantation Conditioning , Whole-Body Irradiation
12.
Exp Hematol ; 30(1): 74-81, 2002 Jan.
Article in English | MEDLINE | ID: mdl-11823040

ABSTRACT

OBJECTIVE: The present study was designed to compare directly the frequency of circulating LTC-IC and E-LTC-IC mobilized in peripheral blood (PB) after chemotherapy supported by either G-CSF (PB-G) or GM-CSF (PB-GM) in comparison to steady-state bone marrow (BM) and PB (PB-ST) values in the same patients. MATERIALS AND METHODS: Long-term cultures (LTC) were performed from 20 patients with malignant lymphoma at saturating cell concentrations to assess bulk progenitor cell production and by limiting dilution assay (LDA) to measure both frequency of LTC-IC and their proliferative and differentiation capacities. RESULTS: While CFC production in bulk LTC was higher at weeks 3-5 with PB-G than with PB-GM samples, week-5 LTC-IC and week-10 LTC-IC (E-LTC-IC) frequencies were not different using a LDA. However, the number of CFC derived from a single LTC-IC was higher in PB-G patients than in PB-GM patients (p = 0.01). Interestingly, the frequency of LTC-IC per 1 x 10(5) MNC in mobilized PB positively correlated with one-year marrow progenitor cell recovery, in contrast to the number of autografted CD34(+) cells and CFU-GM per kg. CONCLUSION: Both G-CSF and GM-CSF resulted in similar increases in LTC-IC and E-LTC-IC in PB at comparable levels to those present in BM. However, the differentiation capacity of LTC-IC was higher after mobilization with G-CSF than with GM-CSF, suggesting qualitative differences in LTC-IC mobilized with these growth factors.


Subject(s)
Granulocyte Colony-Stimulating Factor/pharmacology , Granulocyte-Macrophage Colony-Stimulating Factor/pharmacology , Hematopoietic Stem Cell Mobilization , Hematopoietic Stem Cells/pathology , Adult , Antineoplastic Combined Chemotherapy Protocols/pharmacology , Blood Cells/pathology , Bone Marrow Cells/pathology , Female , Hematopoietic Stem Cells/drug effects , Humans , Male , Middle Aged
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