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Biomedical subjects

V Callea

Publications and source records attributed to V Callea.

At least 19 recordsLinked to original sources
PubMed2006

Prolonged survival and low incidence of late toxic sequelae in advanced follicular lymphoma treated with a TBI-free autografting program: updated results of the multicenter consecutive GITMO trial.

This study provides an updated report of the consecutive multicenter Gruppo Italiano Trapianto Midollo Osseo trial employing an intensified, purging-free, total body irradiation-free, high-dose sequential chemotherapy schedule with peripheral blood stem cell autograft (i-HDS) in advanced-stage follicular lymphoma (FL). Special interest has been devoted to late toxicities and outcome in terms of molecular status. Ninety-two untreated FL patients aged <or=60 were enrolled by 20 Italian centers and evaluated on an intention-to-treat basis. Main findings are as follows: (1) 5.5-years overall survival projection of 80% (median follow-up: 68 months), with no differences related to age-adjusted IPI score; (2) 46 (50%) of 92 patients presently in continuous complete remission; (3) projected long-term progression-free survival exceeding 80% for patients collecting PCR-negative stem cell harvests or achieving molecular remission within the first 2 years from the end of therapy; (4) actuarial 5-years risk of developing secondary myelodysplasia and acute myeloid leukemia of 3.7%, with most of these events occurring in patients re-treated for recurrent lymphoma. These results demonstrate that i-HDS is feasible, effective and safe even in terms of long-term outcome. As the HDS schedule can be easily supplemented with Rituximab, it is one of the best options for random comparison with Rituximab-supplemented conventional chemotherapy.

Adolescent↗
PubMed2006

The role of high-dose therapy and autologous stem cell transplantation in patients with primary refractory Hodgkin's lymphoma: a report from the Gruppo Italiano per lo Studio dei Linfomi (GISL).

GISL recently conducted an exhaustive survey of 1078 patients with Hodgkin's Lymphoma (HL) enrolled between 1988 and 2002 in different prospective trials. Treatment failure was observed in 82 out of 1078 patients; of these 82 patients with refractory HL, complete information was available for 72, who form the evaluable population of the present study. After the initial therapy failure, 51 patients were treated with conventional salvage chemotherapy (CC) (n = 24) or high-dose chemotherapy (HDC) (n = 27); 4-year overall survival (OS) was 81% in the HDC group versus 38% in the CC group (P = 0.019). The remaining 21 patients had rapidly progressive disease and died. After a median follow-up of 2.8 years, the projected OS for all 72 patients is 58 and 49% at 3 and 5 years, respectively. Age <45 years, the absence of systemic symptoms and a PS <1 predicted a significantly longer OS. Interestingly, the majority of patients with two or three negative prognostic factors did not receive potentially curative therapy. In conclusion, HDC seems to be a reasonable option for selected patients with refractory HL, although the majority of them did not receive a transplant. Finally, patients with a high-risk score had little chance of receiving potentially curative treatment.

Adolescent↗
PubMed2004

Lipid peroxidation and protein oxidation in patients affected by Hodgkin's lymphoma.

A dysregulation of the redox homoeostasis has been reported in various neoplastic disorders. Malondialdehyde/4-hydroxy-2,3-nonenal (MDA/HNE) and protein carbonyl groups represent in vivo indexes of lipid peroxidation and protein oxidation, respectively, suitable to investigate radical-mediated physio-pathological conditions. We evaluated MDA/HNE and protein carbonyl groups in sera of untreated Hodgkin's lymphoma (HL) patients in advanced disease stages, in order to quantify the oxidative stress. HL patients displayed significantly higher levels of both MDA/HNE and protein carbonyl groups as compared with healthy controls. This is the first evidence that a strong increase in HL is one of the most common haematological malignancies, representing approximately 30% of all lymphomas in the circulating protein carbonyl content in HL. These findings may contribute to a better definition of the redox homoeostasis dysregulation in HL.

Adult↗
PubMed2003

Patterns of outcome and prognostic factors in primary large-cell lymphoma of the testis in a survey by the International Extranodal Lymphoma Study Group.

PURPOSE: To determine clinical features and patterns of outcome of primary testicular diffuse large B-cell lymphomas (DLCL). PATIENTS AND METHODS: A retrospective international survey of 373 patients with primary testicular DLCL. RESULTS: Most patients presented with localized disease (stage I to II), and the median age at diagnosis was 66 years (range, 19 to 91 years). Anthracycline-based chemotherapy was administered to 255 patients (68%), and prophylactic intrathecal chemotherapy was given to 68 patients (18%); 133 patients (36%) received prophylactic scrotal radiotherapy. Median overall survival was 4.8 years, and median progression-free survival was 4 years. The survival curves showed no clear evidence of a substantial proportion of cured patients. A favorable international prognostic index score (IPI), no B-symptoms, the use of anthracyclines, and prophylactic scrotal radiotherapy were significantly associated with longer survival at multivariate analysis. However, even for patients with stage I disease and good-risk IPI, the outcome seems worse than what was reported for DLCL at other sites. At a median follow-up of 7.6 years, 195 patients (52%) had relapsed. Extranodal recurrence was reported in 140 cases. Relapses in CNS were detected in 56 patients (15%) up to 10 years after presentation. A continuous risk of recurrence in the contralateral testis was seen in patients not receiving scrotal radiotherapy. CONCLUSION: Testicular DLCL is characterized by a particularly high risk of extranodal relapse even in cases with localized disease at diagnosis. Anthracycline-based chemotherapy, CNS prophylaxis, and contralateral testicular irradiation seem to improve the outcome. Their efficacy is under evaluation in a prospective clinical trial.

Adult↗
PubMed2001

Peripheral blood CD38 expression predicts survival in B-cell chronic lymphocytic leukemia.

CD38 expression was investigated in 161 untreated patients with B-cell chronic lymphocytic leukemia (B-CLL). A score system, devised ad hoc by integrating the percentage and the mean fluorescence intensity (MFI) values of CD38(+) cells, indicated that B-CLL patients with a CD38 score < or =3 are characterized by a significantly longer survival compared to those with a CD38 score >3 (P=0.0026). Thirty-seven percent of patients with a CD38 score < or =3 and 58% of those with a score >3 were dead at 10 years. Multivariate analysis indicates that only the CD38 score successfully predicts survival (P=0.0028), with an estimated 3.8-fold greater risk of death for those cases with CD38 score >3.

ADP-ribosyl Cyclase↗
PubMed2000

Validation of the international prognostic index in working formulation group A low-grade non-Hodgkin's lymphoma: retrospective analysis of 137 patients from the Gruppo Italiano per lo Studio dei Linfomi registry.

BACKGROUND AND OBJECTIVE: The subset of non-follicular non-Hodgkin's lymphoma (NHL) includes patients with varied prognoses, thus suitable for different therapeutic approaches. The International Prognostic Index (IPI), originally proposed for aggressive NHL, has been demonstrated to be of prognostic relevance also in follicular NHL. The main aim of the study was to validate the IPI in this histologic category; in addition, the specific prognostic classification, currently employed in the Gruppo Italiano per lo Studio dei Linfomi (GISL) prospective therapeutic trials and based on different features, more similar to those applied to chronic lymphocytic leukemia, was analyzed. DESIGN AND METHODS: The present series consists of 137 evaluable patients affected by Working Formulation group A NHL out of 256 cases referred to the GISL Registry. The retrospective prognostic study included the evaluation by both univariate and multivariate analyses of overall survival, response to therapy and response duration. The IPI was applied as originally proposed. The GISL definition of indolent and aggressive disease at diagnosis was based on the presence of B symptoms, bulky disease, anemia and thrombocytopenia. RESULTS: The distribution of patients in IPI risk groups was rather unbalanced with 18%, 47%, 28% and 7% of cases classified as low (L), intermediate-low (IL), intermediate-high (IH) and high (H) risk, respectively. The median overall survival was not reached in either L or IL risk groups, and was 84.1 and 7.4 months for IH and H risk groups, respectively (p=0. 0005). A simplified IPI model was designed merging patients in both intermediate risk groups and the statistical difference of survival retained its significance. GISL prognostic stratification was demonstrated to have a significant association with survival, with a median survival of 71.3 months in aggressive disease and a median survival not reached at 152 months in indolent disease. Both the simplified IPI model and the GISL risk definition retained their significance in multivariate analysis for overall survival, while for response to therapy only the simplified IPI model resulted to be of statistical significance. In addition, the GISL prognostic stratification identified patients with different outcomes within the IPI intermediate risk group, with a median survival of 70.2 months for patients with aggressive disease wheras the median survival for those with indolent disease was not reached. Finally, a prognostic score resulting from the integration of the simplified IPI and the GISL system was statistically validated. INTERPRETATION AND CONCLUSIONS: The retrospective analysis of this series demonstrates the validity of the IPI in non-follicular indolent NHL and the usefulness of integrating the IPI parameters with disease specific prognostic variables.

Lymphoma, Non-Hodgkin↗
PubMed2000

Dose-intensive melphalan with stem cell support (CM regimen) is effective and well tolerated in elderly myeloma patients.

BACKGROUND AND OBJECTIVE: Multiple myeloma (MM) typically afflicts elderly patients. High-dose therapy has recently been shown to lead to a better outcome than standard treatment, mainly in younger patients. The extent to which older subjects can benefit from intensified approaches without excessive toxicity is examined in this study. DESIGN AND METHODS: Between December 1994 and May 1997, 12 Italian Multiple Myeloma Study Group institutions entered 68 patients at diagnosis (median age 65) into an intensified chemotherapy regimen: cyclophosphamide (CY) 3 g/m(2) plus melphalan 60 mg/m(2) followed by peripheral blood progenitor cells (PBPC) and G-CSF (CM regimen). CY (day 0) and G-CSF were used to mobilize PBPC harvested by a single leukapheresis on day 10. Melphalan was infused on day 11. PBPC were kept unprocessed at 4 degrees C for 48 hours and reinfused on day 12. Three CM regimens were delivered at 6-month intervals. RESULTS: Sufficient PBPC to support the first CM cycle were available (median CD34(+) harvest: 4.9x10(6)/kg), but dropped significantly after the second (median CD34(+) harvest: 2x10(6)/kg) and the third (median CD34(+) harvest: 0.9x10(6)/kg). The median durations of severe neutropenia (absolute neutrophil count < 500 microL) were 3, 4, and 3 days, and those of severe thrombocytopenia (platelets < 25,000/microL) were 2.5, 2, and 1 days, after the first, second and third courses, respectively. The frequency of extramedullary toxicities was low. Treatment-related mortality (TRM) was 3% after the first CM, only. Complete remission (CR) was 14% after the first, 16% after the second and 27% after the third CM. After a median follow-up of 34 months (range 19-49 months), median event-free survival was 35.6 months. INTERPRETATION AND CONCLUSIONS: These results indicate that dose-intensity of melphalan can be increased by reinfusing PBPC with acceptable low toxicity. The combination of CY and melphalan followed by PBPC is an effective chemotherapy for elderly myeloma patients. Repeated melphalan infusion hampered subsequent CD34(+) harvests.

Aged↗
PubMed1999

Surface CD14 positivity in B-cell chronic lymphocytic leukaemia is related to clinical outcome.

The aberrant expression of the myelomonocytic antigen CD14 was investigated in 128 untreated patients diagnosed with B-cell chronic lymphocytic leukaemia (B-CLL). A cut-off value of 5 x 10(9)/l CD14-positive cells was chosen for statistical analysis because it showed the best discriminating power among patients with different clinical features. 56 cases had a CD14+ cell count >5 x 10(9)/l. A significant correlation was found between Rai and Binet stages and total tumour mass (TTM) score on one hand, and the absolute CD14+ cell cut-off, on the other. This relationship was more evident in Rai 0-II and Binet A-B stages, where a CD14+ cell count >5 x 10(9)/l was preferentially distributed among patients with a higher tumoral mass. In univariate analysis the survival probability at 5 and 10 years showed a significant correlation with Rai and Binet stages, TTM score, CD14+ absolute cell count and median age. The median overall survival (OS) was 63 months for patients with a CD14+ cell count >5 x 10(9)/l and 136 months for those with a CD14+ cell count < 5 x 10(9)/l. In the multivariate Cox regression model, Rai stage, age and CD14+ cell count were independent significant factors for the prediction of OS. Finally, when the same analysis was restricted to Rai stages 0-II, CD14+ cell count was the only significant independent parameter influencing OS, with a relative death risk of 3.8. In conclusion, these data reveal that CD14+ represents an important marker for predicting OS in B-CLL patients and, therefore, we suggest that it should be included in the immunological characterization of B-CLL.

Female↗
PubMed1999

Fludarabine treatment in B-cell chronic lymphocytic leukemia: response, toxicity and survival analysis in 47 cases.

BACKGROUND AND OBJECTIVE: Fludarabine monophosphate (FAMP) is a purine analog with specific therapeutic activity in B-cell chronic lymphocytic leukemia (CLL). Its current use as front-line therapy of CLL is still a matter of debate both because of the controversial results of the clinical trials so far reported and because of the toxicity profile of the drug. In order to contribute to clarifying the possible role of FAMP, we report a retrospective analysis of the results obtained with the purine analog in CLL patients in different phases of the disease. DESIGN AND METHODS: Forty-seven patients affected by advanced CLL, 36% untreated, 31.9% relapsed and 31.9% resistant, were treated with FAMP 25 mg/m2/day, either for 4 days every 3 weeks in 29 cases, or for 5 days every 4 weeks in 18. The median number of FAMP cycles was 6 (range 2-11). Response was defined according to total tumor mass (TTM) score reduction and toxicity was expressed according to WHO grading criteria. The median follow-up of the series was 13 months from the beginning of FAMP therapy. RESULTS: Out of 47 evaluable patients the response rate was 74.4%, with 34% complete response (CR). The overall response rate was 94%, 80% and 46.6% in untreated, relapsed and resistant cases, respectively; a significantly higher number of responses was associated with no previous treatment and number of FAMP cycles. Fifty-three percent of all cases and 58.8% of untreated ones did not experience any toxicity. Treatment-related side effects were mainly autoimmune phenomena in untreated patients and infectious complications in treated ones. One heavily pre-treated patient died because of neurologic complications. Median time to re-treatment was18 months (range 1-30) and was influenced by age and previous treatment. The overall median survival was 35.7 months with a significantly higher proportion of surviving cases among RAI 0-II stages, responders and patients receiving more than 5 FAMP cycles. INTERPRETATION AND CONCLUSIONS: The present report confirms the high efficacy of FAMP in previously pre-treated cases with acceptable toxicity and encourages its use as front-line treatment provided that the results of randomized trials demonstrate its superiority over conventional chemotherapy. The possible development of autoimmune phenomena should, however, be considered seriously.

Adult↗
PubMed1999

Clinical characteristics, treatment outcome and survival of 36 adult patients with primary anaplastic large cell lymphoma. Gruppo Italiano per lo Studio dei Linfomi (GISL).

BACKGROUND AND OBJECTIVE: Although in recent years anaplastic large-cell lymphoma (ALCL) has emerged as a distinct clinico-pathological entity, a gold standard for treatment has still not been defined. Goals of our histologic, phenotypic and clinical study were to present clinical findings, treatment outcome and survival rates of a small, but highly homogeneously treated, series of patients. DESIGN AND METHODS: From April 1991, 36 newly diagnosed adult patients with systemic ALCL CD30+, entered a prospective non-randomized trial in one of the institutions participating in a GISL (Gruppo Italiano per lo studio dei Linfomi) study and were treated with a MOPP/EBV/CAD hybrid scheme. Chemotherapy (CHT) was administered every 28 days, for a total of 6 cycles. After CHT, 19 patients received radiation therapy (RT) to the site of previously involved fields. Kaplan and Meier and log-rank tests were used for statistical analysis. RESULTS: The overall complete remission rate was 78%, the partial remission rate was 6%. The overall survival rate at 74 months was 69%. No statistically significant differences in response or survival rates were noted comparing ALCL-HL and -CT subgroups, T+ Null- and B- subtypes, or ALCL-HL and -CT, with different phenotypes. In the analysis of patients with T+ Null phenotype treated with CHT+RT in comparison with B-ALCL patients who had the same treatment, we observed statistically significant differences in the survival rate (p=0.048). No prognostic factors predictive of response or survival were identified. INTERPRETATION AND CONCLUSIONS: Our results show that using MOPP/ABV/CAD the results, in terms of remission rate and survival, are similar to those obtained with 3rd generation CHT regimens. The diagnosis of T and Null ALCL is the most important prognostic factor, because it is associated with a very good survival, even in patients with a high prognostic index. Finally, we believe that longer follow-ups are needed to evaluate long-term survival and toxicity with different treatments.

Adolescent↗
PubMed1999

An analysis of which subgroups of multiple myeloma patients, divided according to b(2)-microglobulin and plasma cell labeling index, benefit from high dose vs conventional chemotherapy.

BACKGROUND AND OBJECTIVE: The clinical advantage of high-dose therapy (HDT) over standard treatment for multiple myeloma (MM) patients has been recently assessed. Which patient subgroups benefit most from this approach is unclear. DESIGN AND METHODS: To address this issue, the outcome of 54 patients under 55 years old treated with HDT was compared with that of 101 age-matched controls selected from 390 patients who received standard melphalan and prednisone (MP) chemotherapy in a national multi-center trial (M90 protocol). RESULTS: The complete response (CR) rate was 50% in the HDT group compared to 5% in the MP group. Event-free survival (EFS) was three times longer for the HDT patients (median 34.5 vs 12.2 months, p<0. 0001), though the controls enjoyed a prolonged survival after relapse, and hence there was no statistically significant difference in OS. Overall survival (OS) was analyzed in relation to to two major prognostic factors: b(2)-microglobulin (b(2)-M) and bone marrow plasma cell labeling index (LI). HDT significantly improved OS in poor prognosis patients with a high LI (>1.2%), (median 49.5 vs 32.5 months, p<0.03), whereas it did not prolong OS in poor prognosis patients with high b(2 )-M (> 3 mg/L). INTERPRETATION AND CONCLUSIONS: In conclusion, HDT has a major impact on CR and EFS, and is the treatment of choice for patients with a high LI. Alternative strategies should be adopted in poor prognosis patients with high b(2 )-M.

Antineoplastic Agents↗
PubMed1998

In vitro drug-induced cytotoxicity predicts clinical response to fludarabine in B-cell chronic lymphocytic leukaemia.

We investigated the possible value of an in vitro drug-induced cytotoxicity assay in predicting clinical response to fludarabine (FAMP) in chronic lymphocytic leukaemia (CLL). The median FAMP-LD50 values for cases designated as complete response (CR), partial response (PR), no response (NR) and progressive disease (PD) were 1.43, 2.05, 24.8 and 77.9 microg/ml, respectively (P=0.013). A significant lower mean FAMP-LD50 value was observed in the in vivo responding cases as compared to non-responding ones (3.0 +/- 0.82 SEM v 42.3 +/- 12.6 SEM, P=0.001). Only FAMP-LD50 < or = 2.5 microg/ml and more than four FAMP courses significantly influenced the response rate in univariate and multivariate analyses. The MTT assay may be of value in predicting clinical response to FAMP in CLL patients.

Adult↗
PubMed1998

Retrospective analysis of mantle cell lymphoma: experience of the "Gruppo Italiano per lo Studio dei Linfomi" (GISL).

BACKGROUND AND OBJECTIVE: Mantle cell lymphoma is a recently recognized histologic entity with specific biological and clinical features. Clinically, the reported unfavorable outcome of these patients has focused attention on this category of non-Hodgkin's lymphoma (NHL). DESIGN AND METHODS: The slide specimens of 69 NHL patients, originally classified as Working Formulation (WF) group B and E, were reviewed. The clinical features at presentation, response to therapy, response duration and survival were analyzed in cases reclassified as MCL. The correlation between clinical and histologic characteristics and the final outcome was evaluated. RESULTS: Out of 69 cases, 34 specimens were reclassified as MCL; in 6 patients, previously classified as WF group B, the nodular pattern was confirmed; in 2 instances the blastoid form was recognized. After a median follow-up of 35.7 months, the entire series displayed a median overall survival of 41.2 months; a significantly longer survival was associated with the nodular histologic pattern, IPI score < 2, response achievement, and a higher Hb level. The vast majority of patients received anthracycline-containing combination chemotherapy. Complete remission rate was 38.8% and overall response rate was 67.6%; response achievement was significantly influenced only by Hb level. Median response duration was 23.3 months. INTERPRETATION AND CONCLUSIONS: The present study confirms the unfavorable clinical course of MCL and the possible need for an alternative therapeutic strategy for this NHL category. Therefore, the correct identification of MCL at diagnosis appears of relevance.

Adult↗
PubMed1997

Long-term clinical outcome of B-cell chronic lymphocytic leukaemia patients in clinical remission phase evaluated at phenotypic level.

This retrospective study aimed to evaluate the long-term prognostic impact of phenotypic remission in B-cell chronic lymphocytic leukaemia (CLL) patients who have achieved clinical, haematological and bone-marrow complete remission (CR) after conventional chemotherapy. The clinical and phenotypic data of 77 CLL patients in CR with a median follow-up from CR achievement of 54 months (range 5-127) were analysed. 32 patients (42%) displayed a normalized phenotype as evaluated by k:lambda ratio or by CD5+/CD19+ cell numbers. Patients with normalized phenotype demonstrated a significantly higher incidence of female sex, a lower relapse rate, a trend for higher prevalence of stage A and a lower occurrence of CLL-related deaths. The relapse-free survival of patients with normalized phenotype was significantly longer (P = 0.02), whereas no difference in overall survival was found between the two groups. Interestingly, Binet's stage at diagnosis was highly predictive of the overall survival following CR achievement. From the results of the present study we conclude that a phenotype normalization at CR obtained with conventional chemotherapy indicates a higher probability of a longer CR but it does not translate into prolonged survival. Clinical features at diagnosis, such as stage distribution, are apparently stronger predictors of the final outcome. These results emphasize, however, the need for a routine assessment of the quality of response since this information could be crucial in designing therapeutic strategies for young patients suffering from advanced CLL.

Adult↗
PubMed1996

2-Chlorodeoxyadenosine treatment in non-Hodgkin's lymphoma and B-cell chronic lymphocytic leukemia resistant to conventional chemotherapy: results of a multicentric experience. International Society for Chemo-Immunotherapy.

Among the purine analogs, 2-chlorodeoxyadenosine (2-CDA) is particularly effective for the treatment of hairy cell leukemia and Waldemstrom's macroglobulinemia. Both efficacy and toxicity of 2-CDA were evaluated in previously treated patients affected with chronic lymphoproliferative disorders such as low-grade non-Hodgkin's lymphoma (NHL) and B-cell chronic lymphocytic leukemia (CLL). Thirty cases, mainly refractory, 16 affected with CLL, were included from six centers of the International Society for Chemo-Immunotherapy (IGCI). 2-CDA was administered in a 2 h i.v. infusion for 5-7 days at the standard dose of 0.1 mg/kg/day every 4 weeks. The median number of cycles was 3. Of 30 cases, eight (26.7%) achieved a complete remission (CR), nine (30%) a partial remission (PR), and two (6.7%) a minor response, while five cases (16.6%) did not respond, and six (20%) were considered early deaths. The overall response rate (CR + PR) was 56.7%, with a median response duration of 12 months (range 3-28 +) and a better response in CLL patients. Considering that the majority of patients were heavily pretreated, toxicity was acceptable, with 40% of cases not presenting any toxic effect. The main toxicity consisted in infectious complications. Based on the results of the present study, we confirm that 2-CDA is an effective drug in these lymphoproliferative disorders, suggesting its possible use either alone or in combination, also as first-line therapy.

Adult↗
PubMed1996

In vivo biological response following low-dose interleukin-2 in complete remission B-cell non-Hodgkin's lymphoma patients. Italian Lymphoma Study Group (GISL).

The aim of the present study is to verify whether recombinant interleukin-2 (rIL-2) at low doses is well tolerated in aggressive lymphoma in complete remission (CR), and if there may be a biological justification for its use as a remission-maintenance therapy able to reduce the percentage of relapses. We treated 6 patients with B-cell non-Hodgkin's lymphoma (B-NHL) in CR following PM-Cytabom with rIL-2 3 IMU s.c. x 5 d per wk, every other wk for 8 wk. Our results show that this treatment provokes statistically significant changes in the absolute number of lymphocytes, eosinophils, CD25+ and CD122+ cells and soluble IL-2 receptors; these doses, however, are not sufficient to modify CD3+, CD16+ and CD56+ cell values or natural killer and lymphokine activated killer cell activity. Thus these findings do not appear to constitute a biological rationale for the use of rIL-2 at this dose and schedule as a remission-maintenance therapy in B-cell NHL. Nevertheless, the results are a valid basis for further study of the use of the same rIL-2 doses for a longer period of time in combination with other cytokines, in the hope that the biological effects can be augmented without increasing the toxic side effects.

Cytokines↗