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Konova ZV, Parovichnikova EN, Galtseva IV, Khamaganova EG. Impact of natural killer cell’s functional reconstruction on the results of allogeneic hematopoietic stem cell transplantation. RUSSIAN JOURNAL OF HEMATOLOGY AND TRANSFUSIOLOGY 2022. [DOI: 10.35754/0234-5730-2022-67-4-551-569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Introduction. Currently, more and more attention is being paid to possible strategies for preventing the development of graft-versus-host disease (GVHD) and reducing the risk of infections while maintaining the antitumor effect — graft-versus-leukemia effect (GVL). In this context, the study of natural killer cells (NK-cells) seems to be quite promising.Aim – to analyze the biological and functional properties of NK-cells after allo-HSCT, their reconstitution after transplantation and factors affecting this process, as well as the mechanisms of alloreactivity of NK cells in patients after allo-HSCT. Main findings. Various types of activating or inhibiting receptors, which are expressed on NK-cells, regulate the functions of NK-cells. Among them, the main role is played by the killer immunoglobin-like receptor (KIR-receptor), which mediates tolerance to one’s own cells and the immune response, both antitumor and directed against infectious agents. NK-cells can play a decisive role in preventing early relapses and infectious complications, as they are among the first to recover after allo-HSCT. They also have the ability to eliminate the recipient’s T-cells and antigen presenting cells (APCs), thereby preventing the development of graft failure and GVHD. There are several models of NK alloreactivity based on KIR; however, the results of studies in this area are contradictory. This review summarizes the available literature data.
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Wang L, Chen X, Zhang L, Niu B, Li L, Sun Y, Yuan X. CAR cell design strategies in solid tumors. Int Immunopharmacol 2022; 113:109345. [DOI: 10.1016/j.intimp.2022.109345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 10/03/2022] [Accepted: 10/09/2022] [Indexed: 11/05/2022]
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Dias JNR, André AS, Aguiar SI, Gil S, Tavares L, Aires-da-Silva F. Immunotherapeutic Strategies for Canine Lymphoma: Changing the Odds Against Non-Hodgkin Lymphoma. Front Vet Sci 2021; 8:621758. [PMID: 34513964 PMCID: PMC8427286 DOI: 10.3389/fvets.2021.621758] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Accepted: 07/27/2021] [Indexed: 12/13/2022] Open
Abstract
The new era of immune-oncology has brought complexities and challenges that emphasize the need to identify new strategies and models to develop successful and cost-effective therapies. The inclusion of a canine model in the drug development of cancer immunotherapies is being widely recognized as a valid solution to overcome several hurdles associated with conventional preclinical models. Driven by the success of immunotherapies in the treatment of human non-Hodgkin lymphoma (NHL) and by the remarkable similarities of canine NHL to its human counterpart, canine NHL has been one of the main focus of comparative research. Under the present review, we summarize a general overview of the challenges and prospects of today's cancer immunotherapies and the role that comparative medicine might play in solving the limitations brought by this rapidly expanding field. The state of art of both human and canine NHL and the rationale behind the use of the canine model to bridge the translational gap between murine preclinical studies and human clinical trials are addressed. Finally, a review of currently available immunotherapies for canine NHL is described, highlighting the potential of these therapeutic options.
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Affiliation(s)
| | | | | | | | | | - Frederico Aires-da-Silva
- Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Avenida da Universidade Técnica, Lisbon, Portugal
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Gao F, Ye Y, Gao Y, Huang H, Zhao Y. Influence of KIR and NK Cell Reconstitution in the Outcomes of Hematopoietic Stem Cell Transplantation. Front Immunol 2020; 11:2022. [PMID: 32983145 PMCID: PMC7493622 DOI: 10.3389/fimmu.2020.02022] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Accepted: 07/27/2020] [Indexed: 12/18/2022] Open
Abstract
Natural killer (NK) cells play a significant role in immune tolerance and immune surveillance. Killer immunoglobin-like receptors (KIRs), which recognize human leukocyte antigen (HLA) class I molecules, are particularly important for NK cell functions. Previous studies have suggested that, in the setting of hematopoietic stem cell transplantation (HSCT), alloreactive NK cells from the donor could efficiently eliminate recipient tumor cells and the residual immune cells. Subsequently, several clinical models were established to determine the optimal donors who would exhibit a graft-vs. -leukemia (GVL) effect without developing graft-vs. -host disease (GVHD). In addition, hypotheses about specific beneficial receptor-ligand pairs and KIR genes have been raised and the favorable effects of alloreactive NK cells are being investigated. Moreover, with a deeper understanding of the process of NK cell reconstitution post-HSCT, new factors involved in this process and the defects of previous models have been observed. In this review, we summarize the most relevant literatures about the impact of NK cell alloreactivity on transplant outcomes and the factors affecting NK cell reconstitution.
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Affiliation(s)
- Fei Gao
- Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Institute of Hematology, Zhejiang University, Hangzhou, China.,Zhejiang Engineering Laboratory for Stem Cell and Immunotherapy, Hangzhou, China
| | - Yishan Ye
- Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Institute of Hematology, Zhejiang University, Hangzhou, China.,Zhejiang Engineering Laboratory for Stem Cell and Immunotherapy, Hangzhou, China
| | - Yang Gao
- Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Institute of Hematology, Zhejiang University, Hangzhou, China.,Zhejiang Engineering Laboratory for Stem Cell and Immunotherapy, Hangzhou, China
| | - He Huang
- Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Institute of Hematology, Zhejiang University, Hangzhou, China.,Zhejiang Engineering Laboratory for Stem Cell and Immunotherapy, Hangzhou, China
| | - Yanmin Zhao
- Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Institute of Hematology, Zhejiang University, Hangzhou, China.,Zhejiang Engineering Laboratory for Stem Cell and Immunotherapy, Hangzhou, China
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Bücklein V, Adunka T, Mendler AN, Issels R, Subklewe M, Schmollinger JC, Noessner E. Progressive natural killer cell dysfunction associated with alterations in subset proportions and receptor expression in soft-tissue sarcoma patients. Oncoimmunology 2016; 5:e1178421. [PMID: 27622032 PMCID: PMC5006893 DOI: 10.1080/2162402x.2016.1178421] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Revised: 04/05/2016] [Accepted: 04/10/2016] [Indexed: 12/30/2022] Open
Abstract
Immunotherapy is currently investigated as treatment option in many types of cancer. So far, results from clinical trials have demonstrated that significant benefit from immunomodulatory therapies is restricted to patients with select histologies. To broaden the potential use of these therapies, a deeper understanding for mechanisms of immunosuppression in patients with cancer is needed. Soft-tissue sarcoma (STS) presents a medical challenge with significant mortality even after multimodal treatment. We investigated function and immunophenotype of peripheral natural killer (NK) cells from chemotherapy-naive STS patients (1st line) and STS patients with progression or relapse after previous chemotherapeutic treatment (2nd line). We found NK cells from peripheral blood of both STS patient cohorts to be dysfunctional, being unable to lyse K562 target cells while NK cells from renal cell cancer (RCC) patients did not display attenuated lytic activity. Ex vivo stimulation of NK cells from STS patients with interleukin-2 plus TKD restored cytotoxic function. Furthermore, altered NK cell subset composition with reduced proportions of CD56(dim) cells could be demonstrated, increasing from 1st- to 2nd-line patients. 2nd-line patients additionally displayed significantly reduced expression of receptors (NKG2D), mediators (CD3ζ), and effectors (perforin) of NK cell activation. In these patients, we also detected fewer NK cells with CD57 expression, a marker for terminally differentiated cytotoxic NK cells. Our results elucidate mechanisms of NK cell dysfunction in STS patients with advanced disease. Markers like NKG2D, CD3ζ, and perforin are candidates to characterize NK cells with effective antitumor function for immunotherapeutic interventions.
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Affiliation(s)
- Veit Bücklein
- Clinical Cooperation Group Immunotherapy, HelmholtzZentrum München, Munich, Germany; Department of Internal Medicine III, Klinikum der Universität München, Munich, Germany
| | - Tina Adunka
- Division of Clinical Pharmacology, Department of Internal Medicine IV, Klinikum der Universität München , Munich, Germany
| | - Anna N Mendler
- Institute of Molecular Immunology, HelmholtzZentrum München , Munich, Germany
| | - Rolf Issels
- Department of Internal Medicine III, Klinikum der Universität München , Munich, Germany
| | - Marion Subklewe
- Clinical Cooperation Group Immunotherapy, HelmholtzZentrum München, Munich, Germany; Department of Internal Medicine III, Klinikum der Universität München, Munich, Germany
| | - Jan C Schmollinger
- Institute of Molecular Immunology, HelmholtzZentrum München , Munich, Germany
| | - Elfriede Noessner
- Institute of Molecular Immunology, HelmholtzZentrum München , Munich, Germany
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Li Y, Yin J, Li T, Huang S, Yan H, Leavenworth J, Wang X. NK cell-based cancer immunotherapy: from basic biology to clinical application. SCIENCE CHINA-LIFE SCIENCES 2015; 58:1233-45. [DOI: 10.1007/s11427-015-4970-9] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2015] [Accepted: 09/16/2015] [Indexed: 12/31/2022]
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Roberti MP, Mordoh J, Levy EM. Biological role of NK cells and immunotherapeutic approaches in breast cancer. Front Immunol 2012; 3:375. [PMID: 23248625 PMCID: PMC3520123 DOI: 10.3389/fimmu.2012.00375] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2012] [Accepted: 11/23/2012] [Indexed: 12/31/2022] Open
Abstract
In recent decades, tumor surveillance by the immune system and its impact on disease outcomes in cancer patients in general and in breast cancer (BC) patients in particular has been documented. Natural killer (NK) cells are central components of the innate immunity and existing data indicate that they play a role in preventing and controlling tumor growth and metastasis. Their biological significance was first recognized by their ability to exert direct cellular cytotoxicity without prior sensitization. This is important in tumors, as transforming events are likely to result in downregulation of self-ligands and expression of stress-induced ligands which can be recognized by NK cells. Their activation also leads to secretion of stimulatory cytokines which participate in cancer elimination by several direct mechanisms as well as by stimulating the adaptive immune system. In this regard, it was recently revealed a dendritic cell (DC)-NK-cell crosstalk which provides another novel pathway linking innate and adaptive immunity. In addition, NK cells are feasible targets of stimulation in immunotherapeutic approaches such as antibody-based strategies and adoptive cell transfer. Nevertheless, NK cells display impaired functionality and capability to infiltrate tumors in BC patients. This review compiles information about NK-cell biology in BC and the attempts which aim to manipulate them in novel therapeutic approaches in this pathology.
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Affiliation(s)
- María P Roberti
- Centro de Investigaciones Oncológicas, Fundación Cáncer FUCA Buenos Aires, Argentina
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Park MH, Song MJ, Cho MC, Moon DC, Yoon DY, Han SB, Hong JT. Interleukin-32 enhances cytotoxic effect of natural killer cells to cancer cells via activation of death receptor 3. Immunology 2012; 135:63-72. [PMID: 22043900 DOI: 10.1111/j.1365-2567.2011.03513.x] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Studies have demonstrated that the anti-tumour effect of natural killer (NK) cells is successful for patients with several cancers. Although interleukin-32 (IL-32) is endogenously expressed in NK cells, cytolytic function of NK cells against cancer cells has not been fully demonstrated. In the present study, we found that the growth of cancer cells was suppressed when colon cancer cells or prostate cancer cells were co-cultured with NK-92 cells, an NK cell line. We also found that the expression of tumour necrosis factor receptor 2 and death receptor 3 (DR3) was increased in PC3 cells, and the expression of FAS and DR3 was increased in SW620 cells by co-culture with NK-92 cells. However, cancer cell growth inhibition and IL-32 expression were abolished when cancer cells were co-cultured with NK cells transfected with small interfering (si) RNA of IL-32. DR3 expression was also diminished by co-culture with IL-32-specific siRNA-transfected NK-92 cells. Expression of APO3L, a ligand of DR3, was elevated in NK cells that were co-cultured with cancer cells. It was also found that expression of apoptosis-related proteins such as cleaved caspase-3 and bax was increased in cancer cells co-cultured with NK-92 cells, but their expression was abolished by co-culture with IL-32 siRNA-transfected NK-92 cells. Moreover, knockdown of DR3 in co-culture of NK-92 cells with cancer cells by siRNA or antibodies of DR3 and APO3L reversed the growth inhibitory effect of NK-92 cells. In conclusion, our study showed that IL-32 enhanced the cytotoxic effect of NK-92 cells on the cancer cells through activation of DR3 and caspase-3.
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Affiliation(s)
- Mi H Park
- College of Pharmacy and Medical Research Centre, Chungbuk National University, Cheongju, Korea.
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9
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Interleukin-2 and granulocyte-macrophage-colony-stimulating factor immunomodulation with high-dose chemotherapy and autologous hematopoietic stem cell transplantation for patients with metastatic breast cancer. Int J Hematol 2009; 90:627-634. [PMID: 19998065 DOI: 10.1007/s12185-009-0439-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2008] [Revised: 08/18/2009] [Accepted: 10/18/2009] [Indexed: 02/03/2023]
Abstract
Immunomodulation with cytokines was used to improve the result of high-dose chemotherapy (HDC)/autologous hematopoietic stem cell transplantation (AHST). We examined the use of IL-2 and growth factors for mobilization, ex vivo activation of peripheral blood stem cell (PBSC) and maintenance therapy after HDC/AHST in metastatic breast cancer. Eligible patients with metastatic breast cancer for HDC/AHST were assigned to 1 of 3 protocols for PBSC mobilization: G-CSF (group 1); IL-2 + G-CSF (group 2); or IL-2 + G-CSF + GM-CSF (group 3). HDC with cyclophosphamide, carmustine and thiotepa was given from day -7 to -5. PBSCs were treated ex vivo with IL-2 for 24 h and reinfused on day 0. Maintenance therapy included low-dose IL-2, followed by 2 courses of intermediate-dose IL-2. GM-CSF was given from day 1 until neutrophil recovery. Thirty-four patients (10 in group 1, 14 in group 2, and 10 in group 3) were included. Comparable numbers of CD34(+) cells were collected from all 3 groups; incremental increases of CD3(+) cells were collected from groups 1 to 2 and to 3 (p = 0.03). Major adverse effects from IL-2 were fever, hypotension and fatigue; no treatment-related mortality was seen. At a median follow-up of 790.5 days (range 150-2,722 days), median progression-free survival was 434 days and median overall survival was 1,432 days. Estimated 3-year progression-free and overall survival rates were 31 and 57%. Our study suggested that the use of IL-2 and growth factors immunomodulation with HDC/AHST was feasible with comparable survival rates.
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Abstract
As our understanding of the molecular mechanisms governing natural killer (NK) cell activity increases, their potential in cancer immunotherapy is growing increasingly prominent. This review analyses the currently available preclinical and clinical data regarding NK cell-based immunotherapeutic approaches in cancer starting from a historical background and an overview of molecular mechanisms taking part in NK cell responses. The status of NK cells in cancer patients, currently investigated clinical applications such as in vivo modulation of NK cell activity, ex vivo purification/expansion and adoptive transfer as well as future possibilities such as genetic modifications are discussed in detail.
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Affiliation(s)
- T Sutlu
- Division of Haematology, Department of Medicine, Karolinska University Hospital Huddinge, Karolinska Institutet, Stockholm, Sweden
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Rosinski SL, McNiece IK, Shpall EJ, Clough N, Russell P, Blunk B, Nieto Y. Prognostic analysis of pre-transplant peripheral T-cell levels in patients receiving an autologous hematopoietic progenitor-cell transplant. Bone Marrow Transplant 2005; 36:425-30. [PMID: 15980880 DOI: 10.1038/sj.bmt.1705073] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The purpose of this study was to evaluate pre-transplant T-cell status in autologous hematopoietic progenitor-cell transplantation (HPCT) recipients. Between 1999 and 2002 we prospectively enrolled 85 autologous HPCT recipients with solid tumors (N = 50) or hematological malignancies (n = 35). Patient diagnoses included breast cancer (N = 49), non-Hodgkin's lymphoma (N = 20), myeloma (N = 11), Hodgkin's disease (N = 3), germ-cell tumor (N = 1) and amyloidosis (N = 1). Levels of CD3, CD4, CD8, memory and naïve CD4, and CD8 T-cell subsets were analyzed before autologous HPCT. Autologous HPCT recipients presented with lower pre-transplant counts of CD3, CD4, but not CD8 T cells, as compared to healthy controls. Pre-transplant CD4 T-cell levels correlated with progression-free survival (PFS) (P = 0.002) and overall survival (OS) (P = 0.05), in patients with hematologic malignancies (P = 0.02) and breast cancer (P = 0.04). Specifically, pre-transplant memory CD4 + CD45RA - CD62L - T-cell levels correlated with PFS (P = 0.01). The prognostic effects of pre-transplant CD4 and CD4 + CD45RA - CD62L - T cells were independent of tumor diagnosis, tumor stage, tumor sensitivity, and, for breast cancer patients, Her2 / neu status. Our results suggest that pre-transplant CD4 T-cell status, specifically CD4 + CD45RA - CD62L - memory T cells, correlates with the outcome of autologous HPCT recipients. These observations suggest the feasibility of prospective identification of those patients at higher risk of relapse, based on their immune status.
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Affiliation(s)
- S L Rosinski
- Bone Marrow Transplant Program, University of Colorado Health Sciences Center, Denver, CO 80262, USA.
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Porrata LF, Gertz MA, Litzow MR, Lacy MQ, Dispenzieri A, Inwards DJ, Ansell SM, Micallef IN, Gastineau DA, Elliott M, Hogan WJ, Hayman SR, Tefferi A, Markovic SN. Early Lymphocyte Recovery Predicts Superior Survival after Autologous Hematopoietic Stem Cell Transplantation for Patients with Primary Systemic Amyloidosis. Clin Cancer Res 2005. [DOI: 10.1158/1078-0432.1210.11.3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Purpose: Absolute lymphocyte count recovery at day 15 (ALC-15) post-autologous stem cell transplantation (ASCT) is a powerful prognostic indicator for survival for multiple hematologic malignancies and metastatic breast cancer. The relationship of ALC-15 with clinical outcomes in primary systemic amyloidosis is unknown.
Experimental Design: We evaluated 145 consecutive patients with primary systemic amyloidosis who underwent ASCT at the Mayo Clinic from 1996 to 2003. The ALC-15 threshold was set at 500 cells/μL based on our previous observations.
Results: The median patient follow-up was 22 months (range, 3-87 months). Higher hematologic complete response was observed in patients with an ALC-15 ≥ 500 cells/μL compared with patients with an ALC-15 < 500 cells/μL (41% versus 21%, P < 0.0008, respectively). The median overall survival and progression-free survival times were significantly better for the 59 patients that achieved an ALC-15 ≥ 500 cells/μL compared with 86 patients with ALC-15 < 500 cells/μL (not reached versus 53 months, P < 0.0003 and not reached versus 27 months, P < 0.0001, respectively). Multivariate analysis showed ALC-15 to be an independent prognostic factor for overall survival and progression-free survival.
Conclusions: ALC-15 ≥ 500 cells/μL is associated with significantly improved clinical outcomes following ASCT in patients with primary systemic amyloidosis.
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Affiliation(s)
- Luis F. Porrata
- Division of Hematology, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota
| | - Morie A. Gertz
- Division of Hematology, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota
| | - Mark R. Litzow
- Division of Hematology, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota
| | - Martha Q. Lacy
- Division of Hematology, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota
| | - Angela Dispenzieri
- Division of Hematology, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota
| | - David J. Inwards
- Division of Hematology, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota
| | - Stephen M. Ansell
- Division of Hematology, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota
| | - Ivanna N.M. Micallef
- Division of Hematology, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota
| | - Dennis A. Gastineau
- Division of Hematology, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota
| | - Michele Elliott
- Division of Hematology, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota
| | - William J. Hogan
- Division of Hematology, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota
| | - Suzanne R. Hayman
- Division of Hematology, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota
| | - Ayalew Tefferi
- Division of Hematology, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota
| | - Svetomir N. Markovic
- Division of Hematology, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota
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Nieto Y, Shpall EJ, McNiece IK, Nawaz S, Beaudet J, Rosinski S, Pellom J, Slat-Vasquez V, McSweeney PA, Bearman SI, Murphy J, Jones RB. Prognostic analysis of early lymphocyte recovery in patients with advanced breast cancer receiving high-dose chemotherapy with an autologous hematopoietic progenitor cell transplant. Clin Cancer Res 2004; 10:5076-86. [PMID: 15297410 DOI: 10.1158/1078-0432.ccr-04-0117] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
PURPOSE The purpose of this study was to evaluate the prognostic effect of early posttransplant lymphocyte recovery in patients with advanced breast cancer receiving high-dose chemotherapy with autologous hematopoietic progenitor cell transplantation. EXPERIMENTAL DESIGN We analyzed the effect of the absolute lymphocyte count on day +15 posttransplant on freedom from relapse and overall survival in patients with high-risk primary breast cancer or metastatic breast cancer, enrolled between 1990 and 2001 in prospective high-dose chemotherapy trials, using a uniform regimen of cyclophosphamide, cisplatin, and 1,3-bis(2-chloroethyl)-1-nitrosourea. RESULTS Four hundred and seventy-six patients (264 high-risk primary breast cancer and 212 metastatic breast cancer patients) were evaluated at median follow-up of 8 years (range, 1.5-11 years). The disease-free survival and overall survival rates in the high-risk primary breast cancer group were 67% and 70%, respectively. Patients with metastatic breast cancer patients had 21.8% disease-free survival and 31.5% overall survival rates. Day +15 absolute lymphocyte count correlated with freedom from relapse (P = 0.007) and overall survival (P = 0.04) in the metastatic breast cancer group, but not in the high-risk primary breast cancer group (P = 0.5 and 0.8, respectively). The prognostic effect of absolute lymphocyte count in metastatic breast cancer was restricted to those patients receiving unmanipulated peripheral blood progenitor cells (P = 0.04). In contrast, absolute lymphocyte count had no significant effect in those metastatic breast cancer patients receiving bone marrow or a CD34-selected product. In multivariate analyses, the prognostic effect of day +15 absolute lymphocyte count in metastatic breast cancer was independent of other predictors, such as disease status, pre-high-dose chemotherapy treatment, number of tumor sites, or HER2. CONCLUSIONS Early lymphocyte recovery is an independent outcome predictor in metastatic breast cancer patients receiving high-dose chemotherapy and an autologous peripheral blood progenitor cell transplant. These observations suggest that immune strategies targeting minimal posttransplant residual disease may prove worthwhile.
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Affiliation(s)
- Yago Nieto
- Bone Marrow Transplant Program and Departments of Pathology and Biostatistics, University of Colorado, Denver, Colorado 80262, USA.
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Misawa E, Sakurai T, Yamada M, Tamura Y, Motoyoshi K. Administration of macrophage colony-stimulating factor mobilized both CD11b+CD11c+ cells and NK1.1+ cells into peripheral blood. Int Immunopharmacol 2004; 4:791-803. [PMID: 15135320 DOI: 10.1016/j.intimp.2004.03.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2004] [Revised: 01/22/2004] [Accepted: 03/04/2004] [Indexed: 11/23/2022]
Abstract
We attempted the phenotypic characterization of peripheral blood (PB) cells after daily administration of macrophage colony-stimulating factor (M-CSF) in mice. The number of CD11b+ cells was increased by M-CSF treatment (2- and 5-day injections). Notably, CD11bbrightCD11cdim, CD11b+CD11c+ and CD11b+CD80+ cells were significantly increased by 2-day treatment of M-CSF. On the other hand, the number of NK1.1+ cells was not changed by the 2-day treatment, but it was significantly increased by the 5-day treatment. However, the numbers of CD3+ and NK1.1+CD3+ cells were not changed by M-CSF treatment. Then, mononuclear cells (MNCs) were separated from the PB of mice treated with saline or M-CSF, and they were incubated with GM-CSF + IL-4 or IL-2. Compared with the saline-treated one (S-MNCs), the MNCs of M-CSF-treated mice (M-MNCs) showed strong proliferation by the GM-CSF + IL-4 stimulation. The MNCs could stimulate proliferation of allo-T cells in the mixed lymphocyte reaction (MLR), especially the M-MNCs showed strong reaction. On the other hand, the stimulation by IL-2 induced strong cell growth of MNCs. And M-CSF treatment enhanced this response. Furthermore, the M-MNCs (stimulated by IL-2 in vitro) exhibited greater cytotoxicity against Yac-1 cells than the S-MNCs. In conclusion, we found that administration of M-CSF mobilized CD11b+, CD11b+CD11c+, CD11b+CD80+, and NK1.1+cells into PB. And the injection of M-CSF facilitates the generation of dendritic and natural killer cells from PB cells in vitro. These results suggest that the mobilized cells may provide for application of immunotherapy.
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Affiliation(s)
- Eriko Misawa
- Biochemical Research Laboratory, Morinaga Milk Industry Co. Ltd., Higashihara 5-1-83, Zama, Kanagawa 228-8583, Japan.
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Morse MA, Lyerly H, Clay TM, Abdel-Wahab O, Chui SY, Garst J, Gollob J, Grossi PM, Kalady M, Mosca PJ, Onaitis M, Sampson JH, Seigler HF, Toloza EM, Tyler D, Vieweg J, Yang Y. How does the immune system attack cancer? Curr Probl Surg 2004. [DOI: 10.1016/j.cpsurg.2003.08.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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16
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Porcellini S, Vallanti G, Nozza S, Poli G, Lazzarin A, Tambussi G, Siccardi AG, Grassi F. Improved thymopoietic potential in aviremic HIV infected individuals treated with HAART by intermittent IL-2 administration. AIDS 2003; 17:1621-30. [PMID: 12853744 DOI: 10.1097/00002030-200307250-00006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVE In HIV-positive individuals administration of intermittent interleukin (IL)-2 in addition to highly active antiretroviral therapy (HAART) induces expansion of the peripheral T cell pool with dilution of signal joint T cell receptor excision circles (sjTREC) that cannot be used to measure thymic output. We analysed whether in vitro thymopoiesis could be used to predict in vivo thymic output in IL-2 treated subjects. DESIGN AND METHODS We correlated the relative variation of peripheral CD4 T cells over 12 months in HIV-positive subjects on HAART or HAART + IL-2 with the mean levels of both sjTREC and T cells developed in chimeric murine foetal thymic organ cultures (FTOC) reconstituted with circulating progenitors. RESULTS In contrast with HAART treated individuals in which these values were directly correlated, in subjects receiving HAART + IL-2 the increase of CD4 T cells in vivo was correlated to neither sjTREC number nor to reconstitution of FTOC, probably reflecting a main effect of IL-2 in the expansion of the peripheral T cell pool. Nevertheless, addition of IL-2 to HAART determined a significant increase of in vitro thymopoietic potential in individuals with undetectable viraemia. CONCLUSIONS The increased T cell development in vitro after addition of IL-2 to HAART suggests that intermittent IL-2 administration may exert a positive influence on lymphopoiesis. In two subjects with positive viraemia treated with IL-2 we observed reduced in vitro development of T cell precursors suggesting that the positive influence of IL-2 on thymopoiesis could be secondary to the control of viral replication by HAART. These observations provide novel evidence in support of the potential beneficial use of IL-2 in HAART treated individuals.
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Affiliation(s)
- Simona Porcellini
- Dipartimento di Biologia e Genetica per le Scienze Mediche, Università di Milano, Milano, Italy
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17
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Burns LJ, Weisdorf DJ, DeFor TE, Vesole DH, Repka TL, Blazar BR, Burger SR, Panoskaltsis-Mortari A, Keever-Taylor CA, Zhang MJ, Miller JS. IL-2-based immunotherapy after autologous transplantation for lymphoma and breast cancer induces immune activation and cytokine release: a phase I/II trial. Bone Marrow Transplant 2003; 32:177-86. [PMID: 12838283 DOI: 10.1038/sj.bmt.1704086] [Citation(s) in RCA: 175] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
We determined the safety, immune activating effects, and potential efficacy of i.v. infusion of ex vivo interleukin-2 (IL-2) activated natural killer (NK) cells (part I) or IL-2 boluses (part II) during daily s.c. IL-2 administration following hematopoietic recovery from autologous transplantation. In all, 57 patients with relapsed lymphoma (n=29) or metastatic breast cancer (n=28) were enrolled. In part I of the study, 34 patients were enrolled at three dose levels of ex vivo IL-2-activated NK cells. Lymphaphereses were performed on days 28 and 42 of s.c. IL-2 administration. Following overnight ex vivo IL-2 activation of the pheresis product, the cells were reinfused the following day. In part II, 23 patients were enrolled at three dose levels of supplemental i.v. IL-2 bolus infusions, given on days 28 and 35 during s.c. IL-2 administration. Toxicities were generally mild, and no patient required hospitalization. Lytic function was markedly enhanced for fresh peripheral blood mononuclear cells (PBMNCs) obtained 1 day postinfusion of either IL-2-activated cells or IL-2 boluses. IL-2 boluses transiently increased the levels of IL-6, IFN-gamma, TNF-alpha and IL1-beta, with increases in IL-6 and IFN-gamma being dose dependent. A total of 37 patients (19 patients with lymphoma, 18 with breast cancer) treated with an optimum dose of post-transplant immunotherapy (defined as having received 1.75 x 10(6) IU/m(2)/day of s.c. IL-2 plus at least one of the planned ex vivo IL-2-activated cell infusions/IL-2 boluses) could be matched with controls from the Autologous Blood and Marrow Transplant Registry database. The matched-pairs analysis demonstrated no improvement in disease outcomes of survival and relapse. We conclude that IL-2-activated cells/IL-2 boluses can be safely administered, generate PBMNCs with enhanced cytotoxicity against NK-resistant targets, and increase cytokine levels. With this dose and schedule of administration of IL-2, no improvement in patient disease outcomes was noted. Alternative strategies will be needed to exploit the immunotherapeutic potential of IL-2-activated NK cells.
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Affiliation(s)
- L J Burns
- Blood and Marrow Transplant Program and Cancer Center, University of Minnesota, Mayo Mail Code 286, Minneapolis, MN 55455, USA
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18
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Porrata LF, Gastineau DA, Padley D, Bundy K, Markovic SN. Re-infused autologous graft natural killer cells correlates with absolute lymphocyte count recovery after autologous stem cell transplantation. Leuk Lymphoma 2003; 44:997-1000. [PMID: 12854901 DOI: 10.1080/1042819031000077089] [Citation(s) in RCA: 59] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Early absolute lymphocyte count (ALC) has been reported to be a powerful prognostic indicator of survival after autologous stem cell transplantation (ASCT). One possible source affecting ALC recovery includes the re-infused autologous graft lymphocytes (AGL). To assess if the re-infused AGL correlate with ALC recovery post-ASCT, we conducted a pilot study to identify which of the re-infused AGL subsets is most associated with day 15 ALC recovery in three patients with multiple myeloma and four patients with non-Hodgkin's lymphoma. Using the Spearman rank correlation coefficient analysis (r), we compared absolute numbers of CD3, CD4, CD8, CD19, and CD16+/CD56+ cells/kg of body weight from the apheresis product with ALC (cells/microl) at day 15 post-ASCT. The main lymphocyte subsets identified in the apheresis product were T cells and NK cells. There was no strong correlation between T or B cells from the apheresis product compared with the ALC at day 15 post-ASCT (CD3, r = 0.21; CD4, r = 0.32; CD8, r = 0.39; and CD19, r = 0.14). However, there was good correlation between NK cells from the apheresis product compared with ALC at day 15 post-ASCT (CD16+/CD56+/CD3-, r = 0.77). These data provide preliminary evidence that the number of re-infused autologous graft NK cells in the apheresis product significantly affect ALC recovery early post-ASCT. However, given the small sample size, our results are primarily hypothesis generating and subject of further research.
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Affiliation(s)
- Luis F Porrata
- Division of Hematology, Department of Internal Medicine, Mayo Clinic, 200 First Street, SW, Rochester, MN 55905, USA
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19
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Frasci G. Treatment of breast cancer with chemotherapy in combination with filgrastim: approaches to improving therapeutic outcome. Drugs 2003; 62 Suppl 1:17-31. [PMID: 12479592 DOI: 10.2165/00003495-200262001-00002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Chemotherapy improves disease-free and overall survival in breast cancer, and its benefit is directly related to the percentage of the planned dose that is actually administered. In all current chemotherapeutic regimens, a substantial proportion of patients have reductions and/or delays in dosage due to side effects. In about half such cases, the delays or reductions are related to neutropenia. Overall, approximately 30% of patients have a reduction to less than 85% of the planned dosage. Women aged > or = 50 years are more likely to experience a reduction or delay in dose. Dose-intense regimens (excluding myeloablative high-dose chemotherapy) which increase the dose of chemotherapy or reduce the interval between cycles, or both, are a promising approach now under investigation. The human granulocyte colony-stimulating factor filgrastim reduces the incidence of neutropenia and facilitates adherence to full dose intensity in both standard and dose-intensified regimens. A model based on the first-cycle absolute neutrophil count nadir has been developed and validated to determine which patients should receive filgrastim. A cost benefit associated with the use of filgrastim in patients with breast cancer has been realised. This may lead to a re-evaluation of the current treatment guidelines.
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20
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Smyth MJ, Hayakawa Y, Takeda K, Yagita H. New aspects of natural-killer-cell surveillance and therapy of cancer. Nat Rev Cancer 2002; 2:850-61. [PMID: 12415255 DOI: 10.1038/nrc928] [Citation(s) in RCA: 532] [Impact Index Per Article: 24.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Mark J Smyth
- Cancer Immunology Laboratory, Trescowthick Research Laboratories, Research Division, Peter MacCallum Cancer Institute, Locked Bag 1, A'Beckett Street, Melbourne 8006, Australia.
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21
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Sakurai T, Misawa E, Yamada M, Hayasawa H, Motoyoshi K. Comparative study and effects of macrophage colony-stimulating factor (M-CSF) administration on NK1.1+ cells in mouse spleen and bone marrow. Immunopharmacol Immunotoxicol 2002; 24:547-66. [PMID: 12510790 DOI: 10.1081/iph-120016035] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
We conducted a comparative study of NK1.1+ cells in spleen and bone marrow and the effects of administration of M-CSF on them. Administration of M-CSF to mice increased the number of NK1.1+ cells in spleen but not in bone marrow. The NK1.1+ cells in spleen (Spl-NK1.1) and bone marrow (BM-NK1.1) were purified by magnetic cell sorter. Their cell surface markers and functions were then examined. The percentage of Mac-1 antigen-positive cells (and F4/80 antigen-positive cells) was higher among BM-NK1.1 than Spl-NK1.1. Moreover, the administration of M-CSF increased the number of Mac-1 and F4/80 antigen-positive cells in both Spl-Nk1.1 and BM-NK1.1. The functions (cytolytic activity and IFN-gamma production) of Spl-NK1.1 and BM-NK1.1 were the same and were enhanced by the administration of M-CSF. But Spl-NK1.1 produced more IFN-gamma than BM-NK1.1 when M-CSF was administered. BM-NK1.1 showed a greater proliferative response to IL-2 than Spl-NK1.1. Administration of M-CSF augmented this response. BM-NK1.1 proliferated in response to IL-4 and IL-15, but Spl-NK1.1 responded only slightly. However, administration of M-CSF stimulated Spl-NK1.1 to respond to these cytokines. Both Spl-NK1.1 and BM-NK1.1 showed only a weak response to M-CSF in vitro. But the expression of c-fms antigen (M-CSFR) increased after the M-CSF injections in vivo. These results suggested that there are phenotypical and functional differences between Spl-NK1.1 and BM-NK1.1. The administration of M-CSF led to an accumulation of NK1.1+ cells which were mobilized from bone marrow in spleen.
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Affiliation(s)
- Takuma Sakurai
- Biochemical Research Laboratory, Morinaga Milk Industry Co., Ltd. No. 1-83, 5-Chome Higashihara Zama-city, Kanagawa pref. Japan 228-8583.
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22
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Sakurai T, Misawa E, Tanaka-Douzono M, Hagesita H, Nomaguchi K, Tetsuya K, Suzu S, Yamada M, Hayasawa H, Motoyoshi K. Effect of coadministration of M-CSF and IFN-alpha on NK1.1+ cells in mice. J Interferon Cytokine Res 2002; 22:701-8. [PMID: 12162882 DOI: 10.1089/10799900260100204] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The purpose of this study was to evaluate the effect of coadministration of macrophage colony-stimulating factor (M-CSF) and interferon-alpha (IFN-alpha) on NK1.1(+) cells in mice. Administration of M-CSF, but not IFN-alpha, increased the number of NK1.1(+) cells and CD11b(+) cells in spleen and blood. Coadministration of the two agents induced a greater increase in NK1.1(+) cells than did administration of M-CSF alone. Administration of M-CSF or IFN-alpha augmented the clearance activity of Yac-1 cells in lung, and coadministration of these agents further augmented this effect. The combination of M-CSF and IFN-alpha effectively reduced the formation of tumor nodules in lung and liver in an experimental metastasis model using B16 melanoma. The combination of M-CSF and IFN-alpha induced the increase and activation of NK1.1(+) cells more than either agent alone. These effects may contribute to the antimetastatic reaction by NK1.1(+) cells in vivo.
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Affiliation(s)
- Takuma Sakurai
- Biochemical Research Laboratory, Morinaga Milk Industry Co., Ltd., 5-Chome Higashihara Zama-city, Kanagawa pref., Japan.
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23
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Hinterberger-Fischer M, Hinterberger W. Blood stem cell transplantation for breast cancer: new approaches using pre- peri- post-transplant immunotherapy. Expert Opin Biol Ther 2001; 1:1029-48. [PMID: 11728234 DOI: 10.1517/14712598.1.6.1029] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Autologous peripheral blood stem cell transplantation (auto-PBSCT) after high dose chemotherapy is usually offered to breast cancer patients carrying a high risk of relapse or having chemosensitive metastatic disease. Whether progression free and overall survival of such patients is improved after auto-PBSCT compared to conventional chemotherapy is a matter of debate. Currently available results of randomised trials could not uniformly prove or disprove auto-PBSCT being advantageous. Yet such studies have not employed any manipulation of the stem cell graft or any post-transplant immunomodulation exploiting the unique immunological environment for tumour eradication which exists only after auto-PBSCT. Preliminary data have discussed the ex vivo and in vivo generation of cytotoxic effector cells employing IL-2 and/or IFN-alpha/gamma in the auto-PBSCT setting. Other cytokines such as IL-12, IL-15 and prolactin have likewise been considered. Several anticancer vaccine protocols after auto-PBSCT are ongoing using monovalent vaccines or anti-idiotypic antibodies. Polyvalent anticancer vaccines, cytokine secreting tumour cells, tumour pulsed or hybridised dendritic cells (DC) enhanced with cytokines are studied. Monoclonal antibodies (mAb) could assist: unlabelled for pretransplant exvivo purging, post-transplant for enhancing antibody-dependent cell mediated cytotoxicity (ADCC) or radioimmunoconjugated as an additive cytotoxic part of the conditioning regimen. Autologous graft versus host induction and allogeneic stem cell transplantation (probably with non-myeloablative conditioning followed by donor lymphocyte infusions) are other approaches. Evaluation of successful combinations, optimal dosages and appropriate timing schedules is the subject of future investigations. Since breast cancer patients belong to countless subgroups, a large number of protocols need to be addressed in order to avoid over treatment and prevent relapse.
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Affiliation(s)
- M Hinterberger-Fischer
- Ludwig Boltzmann Institute for Stem Cell Transplantation, 2nd Dept. of Int. Medicine, Donauspital, Langobardenstrasse 122, A-1220 Vienna, Austria.
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24
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Porrata LF, Ingle JN, Litzow MR, Geyer S, Markovic SN. Prolonged survival associated with early lymphocyte recovery after autologous hematopoietic stem cell transplantation for patients with metastatic breast cancer. Bone Marrow Transplant 2001; 28:865-71. [PMID: 11781647 DOI: 10.1038/sj.bmt.1703236] [Citation(s) in RCA: 72] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2001] [Accepted: 07/30/2001] [Indexed: 11/09/2022]
Abstract
Early absolute lymphocyte count (ALC) recovery at day 15 post-autologous stem cell transplantation (ASCT) is a powerful prognostic indicator for survival in multiple myeloma and non-Hodgkin's lymphoma. The relationship of ALC with clinical outcomes in metastatic breast cancer is unknown. We evaluated all 29 patients with metastatic breast cancer who underwent ASCT at the Mayo Clinic, Rochester, Minnesota, from 1994 to 1999. The ALC threshold was set at 500 cells/microl on day 15 post-ASCT based on previous experience with hematologic malignancies. All patients were followed for a minimum of 2 years or until death, with a median follow-up for living patients of 2.25 years. Of the 29 patients, 17 have died with disease progression, two are alive and have progressed, and 10 are alive without progression. The median overall and progression-free survival times were significantly better for the 20 patients with ALC > or = 500 cells/microl compared with the nine patients with ALC <500 cells/microl (not reached vs 14 months, P < 0.0001; 24 vs 7 months, P < 0.0015, respectively). In conclusion, ALC > or = 500 cells/microl on day 15 post-ASCT was associated with significantly better survival in patients with metastatic breast cancer, suggesting the importance of early immune recovery post-ASCT in these patients.
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Affiliation(s)
- L F Porrata
- Division of Hematology, Department of Internal Medicine, Mayo Clinic, Rochester, MN 55905, USA
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25
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Stewart DA, Guo D, Luider J, Auer I, Klassen J, Morris D, Brown CB, Chaudhry A, Glück S, Russell JA. The CD3- 16+ 56+ NK cell count independently predicts autologous blood stem cell mobilization. Bone Marrow Transplant 2001; 27:1237-43. [PMID: 11548841 DOI: 10.1038/sj.bmt.1703070] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Better predictive factors for autologous blood stem cell mobilization (BSCM) are needed. The purpose of this study was to determine if an independent association exists between lymphocyte or NK cell counts and BSCM. Data were analyzed on 141 consecutive patients aged 19-69 years (median 45) who received combined chemotherapy plus G-CSF for BSCM, and who had measurements of immune cells prior to BSCM. Of the 141 patients, 41% had breast cancer, 14% Hodgkin's disease, 34% non-Hodgkin's lymphoma, and 11% other diagnoses. BSCM involved dose-intensive cyclophosphamide, etoposide, cisplatin (DICEP) plus G-CSF 300 microg (<70 kg) or 480 microg (>70 kg) for 45% of patients, while the remaining 55% received other chemotherapy plus similar doses of G-CSF. Only a single apheresis was performed for 94% of patients. The following factors were analyzed for predictors of BSCM: age, gender, prior chemotherapy, prior radiotherapy, diagnosis, disease status, marrow involvement, mobilization regimen, Hb, WBC, platelet count, B cell, T cell, and NK cell counts. The peripheral blood CD34+ counts on the first day of apheresis (PBCD34) were 6-1783 x 10(6)/l (median 150). The PBCD34 count correlated strongly with the number of CD34+ cells collected/l blood apheresed and with the number of CD34+ cells collected/kg. By multivariate analysis using continuous variables, relapsed status (P = 0.0003), not using DICEP mobilization (P = 0.0001), female gender (P = 0.0057), low platelet count (P = 0.051), and low CD3- 16+ 56+ count (P = 0.0158) were associated with low PBCD34 counts. Using categorical variables, the only factors that independently predicted a PBCD34 count <150 x 10(6)/l were: >1 prior chemotherapy regimen (odds ratio = 5.12, P = 0.0003), not using DICEP mobilization (odds ratio = 4.94, P = 0.0001), and CD3- 16+ 56+ count <125 x 10(6)/l (odds ratio= 2.58, P = 0.0157). In conclusion, the CD3- 16+ 56+ count may be a useful additional predictor of BSCM and warrants further study.
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Affiliation(s)
- D A Stewart
- Department of Medicine, Tom Baker Cancer Centre, University of Calgary, Alberta, Canada
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26
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Abstract
Hematopoietic stem cell transplantation has been extensively exploited as a therapeutic and research modality and has revolutionized current patient care. At present, more and more medical centers use peripheral blood progenitor cells for transplantation by mobilizing hematopoietic stem cells from bone marrow to peripheral blood because of potential advantages of peripheral blood stem cell transplantation over bone-marrow transplantation. Different effective mobilization regimens have been developed recently with chemotherapeutic agents, hematopoietic growth factors or their combination. This article reviews current developments related to hematopoietic stem cell mobilization including the biology of hematopoietic stem cells, strategies for mobilization, management for mobilization failure, mechanisms of mobilization, and side effects during mobilization. Finally, the Initiation-Amplification-Emigration-Adaptation Model is proposed to help aid understanding of the mechanisms of hematopoietic stem cell mobilization and to stimulate development of novel and optimal mobilization strategies for patient care.
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Affiliation(s)
- S Fu
- Department of Internal Medicine Hematology/Oncology, Blood and Marrow Transplant Program, 601 Elmwood Avenue, Box 610, Rochester, NY 14642, USA
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