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F Cabanillas

Publications and source records attributed to F Cabanillas.

At least 217 records · Page 12Linked to original sources

Establishment and characterization of human B-cell lymphoma cell lines using B-cell growth factor.

B-cell non-Hodgkin's lymphomas (NHL-B) have been difficult to establish in long-term cell culture using standard techniques. We report the establishment of five representative cell lines from high grade NHL-B using B-cell growth factor (BCGF). The five NHL-B cell lines display the morphologic, immunophenotypic, genotypic, and biologic characteristics of the lymphoma cells present in the original diagnostic specimen. The cell lines showed at least a sevenfold dose-dependent increase in proliferation in vitro over background in the presence of BCGF. Other putative B-cell growth-stimulating cytokines showed no significant proliferative activity or were inhibitory in some cases. NHL-B cell lines secreted growth factor(s) into culture supernatants that mediated at least a fivefold dose-dependent increase in cell proliferation in autochthonous lymphoma cells and a 10-fold or greater stimulation in growth factor-dependent normal B cell lines in vitro. The cell lines show monoclonal rearrangements of IgH genes and nonrandom chromosomal abnormalities characteristic of NHL-B, while the expression of Epstein-Barr virus associated antigen (EBNA-I) is present in two of the five cell lines. The studies show that lineage-specific growth factors may be used to establish neoplastic B cell lines in vitro, which are important experimental systems for cellular and molecular studies in the NHL-B.

Adolescent↗

Recent trends in the management of lymphomas at M.D. Anderson Cancer Center.

The overall therapeutic strategy for the management of lymphomas at the M.D. Anderson Cancer Center consists of devising new drug combinations that are tested first in patients with relapsed lymphoma and, if successful, are then incorporated into first-line management. This article describes the preliminary results of the alternating triple therapy (ATT) first-line regimen for patients with M.D. Anderson stages B, C, and D of intermediate-grade lymphomas. This regimen is based on three non-cross-resistant combinations, two of which were originally developed as salvage therapy. Statistically significant improvement in the overall survival and failure-free survival at 1 year has already been seen for the stage D patients (high tumor burden and high lactate dehydrogenase levels). A new therapeutic strategy in current use for patients with Ann Arbor stages III and IV low-grade lymphoma is also described. This regimen consists of CHOP-Bleo (cyclophosphamide, doxorubicin, vincristine, prednisone-bleomycin) alternating with ESHAP (etoposide, Solu-medrol [methylprednisolone, Upjohn Company], Ara-C [cytarabine], platinum) and NOPP (Novantrone [mitoxantrone, American Cyanamid Company], Oncovin [vincristine Eli Lilly and Company], procarbazine, prednisone). Maintenance interferon (IFN) is also used for 1 year. Finally, the current salvage regimen in use at the M.D. Anderson Cancer Center is described. This MINE-ESHAP regimen consists of an induction with mesna, ifosfamide, Novantrone (mitoxantrone), and etoposide, which is administered until maximum response and followed by consolidation with 3 to 6 courses of ESHAP. The preliminary results of this regimen are encouraging, but more follow-up is required before any conclusions can be drawn.

Adult↗

NOVP: a novel chemotherapeutic regimen with minimal toxicity for treatment of Hodgkin's disease.

Patients with early-staged Hodgkin's disease have had a higher relapse rate following radiotherapy alone if they have B symptoms, large mediastinal masses, hilar involvement, or stage III disease. From June 1988 to December 1989, 27 previously untreated patients with early-staged Hodgkin's disease with adverse features for disease-free survival received combined-modality therapy. Seventeen patients had stage I or II disease, 10 had stage III, 5 had B symptoms, 13 had large mediastinal masses, and 6 had peripheral masses measuring 10 cm or more in diameter. All patients initially received three cycles of a novel chemotherapeutic regimen combining Novantrone (mitoxantrone, American Cyanamid Company), vincristine, vinblastine, and prednisone (NOVP). Twenty-four patients with clinically staged I or II disease with adverse features or stage III disease did not undergo laparotomy; three patients had favorable stage I or II disease and at laparotomy had stage III disease. Radiotherapy-treatment fields depended on the extent of nodal involvement. Twenty-six patients completed all therapy as planned to complete remission (CR) and one of these has had progression; she is in second CR following additional radiotherapy. With a median follow-up of 12 months, all patients are alive. Tolerance to treatment was excellent with only grade 1 or 2 nausea, alopecia and myalgias, and brief myelosuppression. NOVP is an effective adjuvant chemotherapy regimen for inducing responses, with minimal toxicity, prior to definitive radiotherapy for patients with early-staged Hodgkin's disease.

Adult↗

Ifosfamide combinations in lymphoma.

From 1977 to 1989, combination ifosfamide and etoposide has been used at the M.D. Anderson Cancer Center for management of lymphoma in both untreated patients and patients with recurrent disease. Results of the various salvage regimens are reviewed. On the average, overall and complete response rates have been 60% and 25%, respectively. Median survival time was 9 months for relapsed intermediate-grade lymphoma and 12 months for low-grade lymphoma. The preliminary results of a new combination, mesna, ifosfamide, novantrone, etoposide (MINE), are discussed. Finally, we discuss the long-term results (at 10 years of follow-up) of a front-line protocol using ifosfamide/methotrexate/etoposide (IMVP-16) as consolidation or intensification for cyclophosphamide, doxorubicin, vincristine, prednisone (CHOP) responders. At 10 years, 62% of intermediate-grade lymphoma patients are alive and disease free.

Antineoplastic Combined Chemotherapy Protocols↗

Risk classification as the basis for clinical staging of diffuse large-cell lymphoma derived from 10-year survival data.

Two hundred and fifty previously untreated adult patients with diffuse large-cell lymphomas were treated with a chemotherapy combination of cyclophosphamide, adriamycin, vincristine, prednisone, and low-dose bleomycin (CHOP-Bleo) with or without radiotherapy between 1974 and 1984. The 10-year survival rates for patients with Ann Arbor stages II, III, or IV disease of 55%, 42%, and 40%, respectively, were not significantly different. However, the survival rate of 76% for patients with stage I disease was clearly better. Factors more indicative of prognosis than stage, as found by univariant analysis, were tumor burden, serum lactic dehydrogenase level (LDH), age, and constitutional symptoms. From these, a multivariant analysis selected tumor burden, LDH level, and age as major independent factors for predicting survival (P less than .001). A prognostic risk model constructed on the basis of tumor burden and LDH levels identified four distinct risk groups (A, B, C, D) with 10-year survival rates of 85%, 66%, and 43% for A, B, and C. No patient in group D survived 10 years. These risk groups also had a strong correlation with complete remission rates and with relapse rates. Thus this model proved more effective for identifying patient populations according to their expected responses, durations of remission, and survivals than the Ann Arbor staging system. Detailed information supporting the use of this system for predicting prognosis and for treatment selection for patients with diffuse large-cell lymphomas is provided.

Adolescent↗

Refractoriness to chemotherapy and poor survival related to abnormalities of chromosomes 17 and 7 in lymphoma.

PURPOSE: Lymphoma cells usually show cytogenetic abnormalities, but their relationship to prognosis has not been as extensively studied as in leukemia. A group of previously untreated cases of lymphoma with evaluable metaphases was examined for the association between cytogenetic abnormalities and clinical outcome. PATIENTS AND METHODS: The study consisted of 104 patients, from whom fresh tumor samples were obtained for cytogenetic tests. Because of the complexity of lymphoma karyotypes, the cases were divided into four patterns according to the type of abnormality of chromosome 17 or 7 present. Treatment of patients was given based on histologic grade and stage of disease. Response to treatment was evaluated according to previously described methods. RESULTS: Patients with true abnormalities of chromosome 17 or 7 (defined as those with either structural abnormalities of the short arm of these chromosomes or monosomy of these chromosomes with no associated unidentified markers) were observed to have an adverse prognosis. The overall response rate and tumor-related mortality were less favorable for patients with these cytogenetic abnormalities. By applying multivariate analysis, we found that this observation was independent of the effect of serum lactic dehydrogenase level, histologic grade, or tumor burden. CONCLUSION: True abnormalities of chromosome 17 or 7 in patients with lymphoma are associated with a poor response to chemotherapy, short time to treatment failure, and high tumor-related mortality rate. These findings raise the question of the potential involvement of some gene or oncogene, perhaps the p53 oncogene, which might impart a survival advantage to the malignant cells.

Adult↗

Fine-needle aspiration cytology of peripheral T-cell lymphoma. A cytologic, immunologic, and cytometric study.

The diagnosis of peripheral T-cell lymphoma (PTCL) is difficult. This entity can be misdiagnosed as Hodgkin's disease or a reactive process such as nonnecrotizing granulomatous lymphadenitis or it can present a problem in lymphoma classification. Fine-needle aspirates from 13 patients with histologically proven PTCL were evaluated by cytology, immunochemistry, and flow cytometry. Of the 13 patients with PTCL, initial cytologic diagnoses were atypical lymphocytic infiltrate (2), mixed-cell lymphoma (6), mixed-cell lymphoma with associated histiocytes (2), large cell lymphoma (2), and small cell lymphoma (1). Surface marker studies were performed on cytospin preparations. Antibodies against cytotoxic-suppressor (Leu-2a) and helper-inducer (Leu-3a,b) antigens were used in 11 cases. Ten lymphomas demonstrated helper phenotype and one showed phenotypic heterogeneity in two different sites. The most prominent cytologic features of PTCL were a variable combination of small, intermediate, and large lymphoid cells with irregular nuclei, presence of epithelioid histiocytes, and atypical mononuclear cells. Flow cytometry studies showed a diploid stem line with intermediate proliferative activity (mean S-phase of 6.7%) in most cases, despite the clinical aggressiveness of this neoplasm.

Adult↗

Etoposide, dexamethasone, cytarabine, and cisplatin in vincristine, doxorubicin, and dexamethasone-refractory myeloma.

Based on remarkable activity in refractory lymphomas, a combination of etoposide, cisplatin (both administered by 4-day continuous infusions), cytarabine (Ara-C), and dexamethasone (EDAP) was evaluated in 20 patients with advanced myeloma refractory to standard melphalan and prednisone (MP) and/or vincristine, Adriamycin (doxorubicin; Adria Laboratories, Columbus, OH), and dexamethasone (VAD) and even to high doses of melphalan (HDM) (seven patients). Forty percent of patients responded regardless of previously recognized risk factors (eg, duration of drug resistance, tumor mass, and serum lactic dehydrogenase [LDH] level). While the median survival was only 4.5 months, patients with good performance (Zubrod less than 2) and low or intermediate tumor stage survived more than 14 months compared with only 2 months for the remaining group. EDAP could be readily administered in the outpatient clinic, but neutropenic fever prompted hospital admission in 80% of patients, half of whom developed penumonia and sepsis, a fatal outcome in four patients. Severe myelosuppression was of short duration, so that subsequent cycles could be administered every 3 to 4 weeks. No serious extramedullary toxicity, including renal toxicity, was encountered. Marrow toxicity and hence infectious complications may be reduced by elimination of Ara-C without compromising treatment efficacy. We conclude that the lack of cross-resistance with VAD and even HDM makes EDAP or a similar combination an attractive regiment to be formally explored in an alternating sequence with VAD in high-risk myeloma.

Aged↗

A new serologic staging system for large-cell lymphomas based on initial beta 2-microglobulin and lactate dehydrogenase levels.

We report results of our investigation of prognostic factors for patients with large-cell lymphoma who were entered on the same treatment protocol and who had known pretreatment serum beta 2-microglobulin (beta 2M) and lactate dehydrogenase (LDH) levels. beta 2M and LDH levels were the most significant and independent variables for predicting time to treatment failure (TTF) and survival. The serum level of beta 2M correlated with tumor burden. These two serum markers defined three significantly different prognostic groups. All 27 patients in the low-risk group remain alive and in remission; in contrast, 22 of the 27 patients (81%) in the high-risk group have failed treatment, and only seven (26%) remain alive. In comparison with the Ann Arbor staging system, serum levels of beta 2M and LDH may provide a more precise system for defining risk groups and thereby allow a more rational approach to the development and analysis of treatment strategies.

Adult↗

Experience with ifosfamide combinations in malignant lymphomas.

Results of a salvage combination regimen, MIME (methyl-glyoxal-bis-guanylhydrazone [methyl-GAG], ifosfamide, methotrexate, etoposide), as well as a front-line study, both containing ifosfamide, are described. The MIME regimen is associated with an overall response rate of 60% and a complete response (CR) rate of 24% in 208 patients. Twenty-five percent of complete responders with aggressive lymphomas have had sustained remissions longer than 2 years. The long-term survival of the whole group of patients with intermediate-grade lymphoma is 15%. Complete responders with low-grade lymphoma, in contrast, show an initially favorable relapse pattern, but a plateau has not been observed in the relapse-free survival curve. In view of the activity observed with ifosfamide as a single agent, a front-line regimen was devised that was aimed at maximizing the CR rate by changing the chemotherapy according to the response obtained after every three courses. CHOP (cyclophosphamide, doxorubicin, vincristine, prednisone) was administered initially, and if CR was not obtained, a second regimen, HOAP-Bleo (doxorubicin, vincristine, cytarabine, prednisone, bleomycin), was given. Again if after three courses CR was not attained, IMVP-16 (ifosfamide, methotrexate, etoposide) was administered. The CR rate was 81% and the long-term survival (at 10 years) was 62%, which compares favorably with other third-generation regimens.

Antineoplastic Combined Chemotherapy Protocols↗

Nucleic acid flow cytometry in large cell lymphoma.

Between 1978 and 1985, 140 patients with large cell lymphoma (27 follicular, 92 diffuse, 5 immunoblastic, and 16 transformed) had DNA-RNA cytometry performed on involved tissue. DNA-RNA features were correlated with treatment outcome and compared to other established prognostic factors in 63 newly diagnosed patients who received uniformly intensive therapy. Significantly better outcome was noted for previously untreated patients with intermediate RNA content (RNA index, 1.0-1.8), diploid DNA content, and (during the initial 12-month follow-up) low proliferative activity. Of patients followed beyond 12-24 months, those with high proliferative activity appeared to have the most durable remissions, although this was not statistically significant. These findings suggested a preferential impact of intensive chemotherapy on patients with intermediate RNA content and possibly those with high proliferative activity, since previous studies and our own experience with relapsing patients have indicated a progressively worse outlook with higher proliferative activity and RNA index values. In newly diagnosed patients, multivariate analysis identified RNA content as the most important prognostic factor, followed by proliferative activity and serum lactate dehydrogenase. Thus, for patients with large cell lymphoma, DNA-RNA cytometry appears to be a valuable prognostic parameter for identifying a subset of patients who have a high likelihood of cure with intensive chemotherapy.

Analysis of Variance↗

Chemotherapy with dexamethasone, high-dose cytarabine, and cisplatin for parenchymal brain lymphoma.

Ten patients with parenchymal CNS lymphoma received combination chemotherapy with dexamethasone, high-dose cytarabine, and cisplatin (DHAP), and additional therapy according to clinical circumstances. Two of four patients with primary CNS lymphoma achieved and remain in complete remission (CR). Four of six patients with CNS lymphoma at relapse also achieved CR. DHAP is active against CNS lymphoma. Further trials with DHAP, particularly in conjunction with other treatment modalities, are warranted.

Adult↗

Frequent nonrandom chromosome abnormalities in 27 patients with untreated large cell lymphoma and immunoblastic lymphoma.

Fresh tumor samples from 27 patients with large cell lymphoma, either previously untreated (26 patients) or minimally treated (one patient), were processed for cytogenetic studies. Cytogenetic abnormalities were observed in all patients, most commonly in chromosomes 1, 3, 7, 12, 14, 17, and 18. Nine chromosomal breakpoints appeared frequently: 14q32 in 14 instances; 18q21 in seven; 9p13-21, 17p11-13, and 3q21-23 in six each; 1p11-21 in five instances; 1p36 in four; and 2p21-23 in three. The most common structural abnormalities were t(14;18)(q32;q21) in seven patients (26%) and 17p- in six (22%). The presence of 17p- was associated with a significantly higher proliferative capacity as manifested by the percentage of S phase = 22% versus 11% for cases without 17p-(P less than 0.05). Trisomy 12, typical of small lymphocytic lymphoma, was seen in five patients in this series, all of whom had diffuse large cell lymphoma; frequently, it appeared simultaneously with t(14;18). The two patients with immunoblastic lymphoma of B-cell type had an abnormality involving chromosome 2p21-23. Deletions in the long arm of chromosome 6, previously described as typical of diffuse large cell lymphoma and B-cell immunoblastic lymphoma were observed infrequently in this series. However, this abnormality has been present in 50% of patients with large cell lymphoma previously exposed to therapy, suggesting that it may be related to effects of chemotherapy or to clonal evolution.

Chromosome Aberrations↗

Randomized trial of beta-lactam regimens in febrile neutropenic cancer patients.

A three-arm prospective randomized trial was designed to compare the efficacies of piperacillin plus vancomycin, ceftazidime plus vancomycin, or all three drugs as initial therapy for fever in neutropenic cancer patients. The objectives were to determine whether a broad-spectrum penicillin was as effective as a broad-spectrum cephalosporin and whether two beta-lactam antibiotics were more effective than one. Four hundred and seventy of the 519 febrile episodes entered in the study could be evaluated for response. Ceftazidime plus vancomycin was significantly more effective than piperacillin plus vancomycin, considering all febrile episodes (79 percent versus 61 percent, p = 0.001), documented infections (79 percent versus 57 percent, p = 0.004), gram-negative infections (88 percent versus 47 percent, p = 0.001), and bacteremias (81 percent versus 51 percent, p = 0.01). The addition of piperacillin to ceftazidime (piperacillin plus ceftazidime and vancomycin versus ceftazidime plus vancomycin) did not improve the response rate and was associated with a significantly higher incidence of skin rash. Vancomycin plus ceftazidime provides adequate antibiotic coverage for initial treatment of fever in neutropenic patients. This combination was equally effective, less expensive, and less toxic than the double beta-lactam combination used in this study.

Adult↗

The adjuvant role of two cycles of MOPP and low-dose lung irradiation in stage IA through IIB Hodgkin's disease: preliminary results.

Fifty-eight laparotomy-staged I and II patients with upper torso presentations of Hodgkin's disease and 8 patients with lymphangiogram-staged lower torso disease were treated with radiotherapy alone or with 2 cycles of MOPP and radiotherapy. Patients with upper torso disease with either no mediastinal or only small mediastinal disease without hilar involvement and with no "B" symptoms were treated with mantle radiotherapy alone. Patients with large mediastinal masses or hilar disease were treated with 2 cycles of MOPP followed by definitive mantle irradiation and low dose lung irradiation. Those for whom "B" symptoms were the only adverse prognostic feature received 2 cycles of MOPP and mantle radiotherapy. Patients with lower torso disease were treated with radiotherapy alone if the disease was limited to the pelvis. Those with more extensive disease received 2 cycles of MOPP prior to radiotherapy. The 4-year survival for all 66 patients was 97%. The corresponding disease-free and freedom from second relapse figures were 77% and 92%. Survival for the patients with unfavorable presentations who received 2 cycles of MOPP and radiotherapy was 100%. It was 92% for the group with favorable presentations who were treated with radiotherapy only.

Antineoplastic Combined Chemotherapy Protocols↗