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Faber ML, Oldham RAA, Thakur A, Rademacher MJ, Kubicka E, Dlugi TA, Gifford SA, McKillop WM, Schloemer NJ, Lum LG, Medin JA. Novel anti-CD30/CD3 bispecific antibodies activate human T cells and mediate potent anti-tumor activity. Front Immunol 2023; 14:1225610. [PMID: 37646042 PMCID: PMC10461807 DOI: 10.3389/fimmu.2023.1225610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Accepted: 07/12/2023] [Indexed: 09/01/2023] Open
Abstract
CD30 is expressed on Hodgkin lymphomas (HL), many non-Hodgkin lymphomas (NHLs), and non-lymphoid malignancies in children and adults. Tumor expression, combined with restricted expression in healthy tissues, identifies CD30 as a promising immunotherapy target. An anti-CD30 antibody-drug conjugate (ADC) has been approved by the FDA for HL. While anti-CD30 ADCs and chimeric antigen receptors (CARs) have shown promise, their shortcomings and toxicities suggest that alternative treatments are needed. We developed novel anti-CD30 x anti-CD3 bispecific antibodies (biAbs) to coat activated patient T cells (ATCs) ex vivo prior to autologous re-infusions. Our goal is to harness the dual specificity of the biAb, the power of cellular therapy, and the safety of non-genetically modified autologous T cell infusions. We present a comprehensive characterization of the CD30 binding and tumor cell killing properties of these biAbs. Five unique murine monoclonal antibodies (mAbs) were generated against the extracellular domain of human CD30. Resultant anti-CD30 mAbs were purified and screened for binding specificity, affinity, and epitope recognition. Two lead mAb candidates with unique sequences and CD30 binding clusters that differ from the ADC in clinical use were identified. These mAbs were chemically conjugated with OKT3 (an anti-CD3 mAb). ATCs were armed and evaluated in vitro for binding, cytokine production, and cytotoxicity against tumor lines and then in vivo for tumor cell killing. Our lead mAb was subcloned to make a Master Cell Bank (MCB) and screened for binding against a library of human cell surface proteins. Only huCD30 was bound. These studies support a clinical trial in development employing ex vivo-loading of autologous T cells with this novel biAb.
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Affiliation(s)
- Mary L. Faber
- Department of Pediatrics, Medical College of Wisconsin (MCW), Milwaukee, WI, United States
| | - Robyn A. A. Oldham
- Department of Pediatrics, Medical College of Wisconsin (MCW), Milwaukee, WI, United States
- Department of Medical Biophysics, University of Toronto, Toronto, ON, Canada
| | - Archana Thakur
- Department of Medicine, Division of Hematology/Oncology, University of Virginia Cancer Center, Charlottesville, VA, United States
| | - Mary Jo Rademacher
- Department of Pediatrics, Medical College of Wisconsin (MCW), Milwaukee, WI, United States
| | - Ewa Kubicka
- Department of Medicine, Division of Hematology/Oncology, University of Virginia Cancer Center, Charlottesville, VA, United States
| | - Theresa A. Dlugi
- Department of Pediatrics, Medical College of Wisconsin (MCW), Milwaukee, WI, United States
| | - Steven A. Gifford
- Department of Pediatrics, Medical College of Wisconsin (MCW), Milwaukee, WI, United States
| | - William M. McKillop
- Department of Pediatrics, Medical College of Wisconsin (MCW), Milwaukee, WI, United States
| | - Nathan J. Schloemer
- Department of Pediatrics, Medical College of Wisconsin (MCW), Milwaukee, WI, United States
| | - Lawrence G. Lum
- Department of Medicine, Division of Hematology/Oncology, University of Virginia Cancer Center, Charlottesville, VA, United States
| | - Jeffrey A. Medin
- Department of Pediatrics, Medical College of Wisconsin (MCW), Milwaukee, WI, United States
- Department of Medical Biophysics, University of Toronto, Toronto, ON, Canada
- Department of Biochemistry, MCW, Milwaukee, WI, United States
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2
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Béné MC. The wonderful story of monoclonal antibodies. Int J Lab Hematol 2019; 41 Suppl 1:8-14. [PMID: 31069973 DOI: 10.1111/ijlh.13006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 02/18/2019] [Accepted: 02/19/2019] [Indexed: 10/26/2022]
Abstract
Monoclonal antibodies have become daily partners of both biologists and clinicians, as reagents and therapeutic agents. Behind their odd names and incredible diversity lies an amazing story of inventiveness and daring. This review tries to retrace the major steps of this saga, initiated by the search for anti-rabbit red blood cell antibodies and currently culminating in amazing molecular constructions saving lives. After some historical and basic reminders, the fields of reagents and drugs will be addressed. This invaluable contribution of immunology to the understanding of both physiology and treatment clearly deserves to be fully recognized.
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Affiliation(s)
- Marie C Béné
- Nantes University Hospital, CRCINA, Nantes, France
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Santos MLD, Quintilio W, Manieri TM, Tsuruta LR, Moro AM. Advances and challenges in therapeutic monoclonal antibodies drug development. BRAZ J PHARM SCI 2018. [DOI: 10.1590/s2175-97902018000001007] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Affiliation(s)
| | | | | | | | - Ana Maria Moro
- Butantan Institute, Brazil; National Institute for Science and Technology, Brazil
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4
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Abstract
The common strategy for making bispecific antibodies (BsAbs) involves combining the variable domains of the desired monoclonal antibodies (mAbs) into a single bispecific structure. Bispecific immunotherapeutics has generated many different formats of BsAbs including chemical heteroconjugation of two complete molecules or fragments of monoclonal antibodies, quadroma, F(ab)2, diabodies, tandem diabodies, and single-chain antibodies (scFv). This chapter describes the process of generating activated T cells and arming T cells with heteroconjugated BsAbs to target cancer cells.
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Abstract
Harnessing the power of the human immune system to treat cancer is the essence of immunotherapy. Monoclonal antibodies engage the innate immune system to destroy targeted cells. For the last 30years, antibody-dependent cell-mediated cytotoxicity and complement-dependent cytotoxicity have been the main mechanisms of anti-tumor action of unconjugated antibody drugs. Efforts to exploit the potentials of other immune cells, in particular T cells, culminated in the recent approval of two T cell engaging bispecific antibody (T-BsAb) drugs, thereby stimulating new efforts to accelerate similar platforms through preclinical and clinical trials. In this review, we have compiled the worldwide effort in exploring T cell engaging bispecific antibodies. Our special emphasis is on the lessons learned, with the hope to derive insights in this fast evolving field with tremendous clinical potential.
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Affiliation(s)
- Z Wu
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, NY 10065, United States
| | - N V Cheung
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, NY 10065, United States.
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Zitron IM, Thakur A, Norkina O, Barger GR, Lum LG, Mittal S. Targeting and killing of glioblastoma with activated T cells armed with bispecific antibodies. BMC Cancer 2013; 13:83. [PMID: 23433400 PMCID: PMC3599512 DOI: 10.1186/1471-2407-13-83] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2012] [Accepted: 02/11/2013] [Indexed: 12/29/2022] Open
Abstract
Background Since most glioblastomas express both wild-type EGFR and EGFRvIII as well as HER2/neu, they are excellent targets for activated T cells (ATC) armed with bispecific antibodies (BiAbs) that target EGFR and HER2. Methods ATC were generated from PBMC activated for 14 days with anti-CD3 monoclonal antibody in the presence of interleukin-2 and armed with chemically heteroconjugated anti-CD3×anti-HER2/neu (HER2Bi) and/or anti-CD3×anti-EGFR (EGFRBi). HER2Bi- and/or EGFRBi-armed ATC were examined for in vitro cytotoxicity using MTT and 51Cr-release assays against malignant glioma lines (U87MG, U118MG, and U251MG) and primary glioblastoma lines. Results EGFRBi-armed ATC killed up to 85% of U87, U118, and U251 targets at effector:target ratios (E:T) ranging from 1:1 to 25:1. Engagement of tumor by EGFRBi-armed ATC induced Th1 and Th2 cytokine secretion by armed ATC. HER2Bi-armed ATC exhibited comparable cytotoxicity against U118 and U251, but did not kill HER2-negative U87 cells. HER2Bi- or EGFRBi-armed ATC exhibited 50—80% cytotoxicity against four primary glioblastoma lines as well as a temozolomide (TMZ)-resistant variant of U251. Both CD133– and CD133+ subpopulations were killed by armed ATC. Targeting both HER2Bi and EGFRBi simultaneously showed enhanced efficacy than arming with a single BiAb. Armed ATC maintained effectiveness after irradiation and in the presence of TMZ at a therapeutic concentration and were capable of killing multiple targets. Conclusion High-grade gliomas are suitable for specific targeting by armed ATC. These data, together with additional animal studies, may provide the preclinical support for the use of armed ATC as a valuable addition to current treatment regimens.
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Affiliation(s)
- Ian M Zitron
- Department of Neurosurgery, Wayne State University, Karmanos Cancer Institute, Detroit, MI, USA
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7
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Abstract
Bispecific antibodies (BiAbs) offer a unique opportunity to redirect immune effector cells to kill cancer cells. BiAbs combine the benefits of different binding specificities of two monoclonal antibodies (mAbs) into a single construct. This unique feature of BiAbs enables approaches that are not possible with single mAbs. Advances in antibody engineering and antigen profiling of malignant cells have led to the development of a number of BiAb formats and their combinations for redirecting effector cells to tumor targets. There have been significant advances in the design and application of BiAbs for intravenous and local injection.The initial barrier of cytokine storm has been partially overcome by more recent constructs that have improved clinical effectiveness without dose-limiting toxicities. Since the recent revival of BiAbs, there has been multiple, ongoing, phase I/II and III trials, and some promising clinical outcomes have been reported in completed clinical studies. This review focuses on arming T cells with BiAbs to create the 'poor man's cytotoxic lymphocyte'.
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Affiliation(s)
- Lawrence G Lum
- Department of Oncology, Wayne State University and Barbara Ann Karmanos Cancer Center, Detroit, MI, USA
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Pezzolo A, Parodi F, Marimpietri D, Raffaghello L, Cocco C, Pistorio A, Mosconi M, Gambini C, Cilli M, Deaglio S, Malavasi F, Pistoia V. Oct-4+/Tenascin C+ neuroblastoma cells serve as progenitors of tumor-derived endothelial cells. Cell Res 2011; 21:1470-86. [PMID: 21403679 DOI: 10.1038/cr.2011.38] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Neuroblastoma (NB)-associated endothelial microvessels (EMs) may be lined by tumor-derived endothelial cells (TECs), that are genetically unstable and chemoresistant. Here we have addressed the identification of TEC progenitors in NB by focusing on Octamer-binding transcription factor 4 (Oct-4) as a putative marker. Oct-4(+) cells were detected in primary NB samples (n = 23), metastatic bone marrow aspirates (n = 10), NB cell lines (n = 4), and orthotopic tumors (n = 10) formed by the HTLA-230 NB cell line in immunodeficient mice. Most Oct-4(+) cells showed a perivascular distribution, with 5% of them homing in perinecrotic areas. All Oct-4(+) cells were tumor-derived since they shared amplification of MYCN oncogene with malignant cells. Perivascular Oct-4(+) cells expressed stem cell-related, neural progenitor-related and NB-related markers, including surface Tenascin C (TNC), that was absent from perinecrotic Oct-4(+) cells and bulk tumor cells. TNC(+) but not TNC(-) HTLA-230 cells differentiated in vitro into endothelial-like cells expressing vascular-endothelial-cadherin, prostate-specific membrane antigen and CD31 upon culture in medium containing vascular endothelial growth factor (VEGF). TNC(+) but not TNC(-) HTLA-230 cells formed neurospheres when cultured in serum-free medium. Both cell fractions were tumorigenic, but only tumors formed by TNC(+) cells contained EMs lined by TECs. In conclusion, we have identified in NB tumors two putative niches containing Oct-4(+) tumor cells. Oct-4(+)/TNC(+) perivascular NB cells displayed a high degree of plasticity and served as progenitors of TECs. Therapeutic targeting of Oct4(+)/TNC(+) progenitors may counteract the contribution of NB-derived ECs to tumor relapse and chemoresistance.
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Affiliation(s)
- Annalisa Pezzolo
- Laboratory of Oncology, Istituto Giannina Gaslini, Largo G. Gaslini 5, 16147 Genova-Quarto, Italy.
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9
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Lum LG, Al-Kadhimi Z. Development and prospects for bispecific antibody-based therapeutics in cancer and other applications. Expert Opin Drug Discov 2008; 3:1081-97. [DOI: 10.1517/17460441.3.9.1081] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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10
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Boswell CA, Brechbiel MW. Development of radioimmunotherapeutic and diagnostic antibodies: an inside-out view. Nucl Med Biol 2007; 34:757-78. [PMID: 17921028 PMCID: PMC2212602 DOI: 10.1016/j.nucmedbio.2007.04.001] [Citation(s) in RCA: 182] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2007] [Revised: 03/29/2007] [Accepted: 04/04/2007] [Indexed: 11/25/2022]
Abstract
Only a handful of radiolabeled antibodies (Abs) have gained US Food and Drug Administration (FDA) approval for use in clinical oncology, including four immunodiagnostic agents and two targeted radioimmunotherapeutic agents. Despite the advent of nonimmunogenic Abs and the availability of a diverse library of radionuclides, progress beyond early Phase II radioimmunotherapy (RIT) studies in solid tumors has been marginal. Furthermore, [18F]fluorodeoxyglucose continues to dominate the molecular imaging domain, underscored by a decade-long absence of any newly approved Ab-based imaging agent (none since 1996). Why has the development of clinically successful Abs for RIT been limited to lymphoma? What obstacles must be overcome to allow the FDA approval of immuno-positron emission tomography (immuno-PET) imaging agents? How can we address the unique challenges that have thus far prevented the introduction of Ab-based imaging agents and therapeutics for solid tumors? Many poor decisions have been made regarding radiolabeled Abs, but useful insight can be gained from these mistakes. The following review addresses the physical, chemical, biological, clinical, regulatory and financial limitations that impede the progress of this increasingly important class of drugs.
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Affiliation(s)
- C. Andrew Boswell
- Radioimmune & Inorganic Chemistry Section, Radiation Oncology Branch, National Cancer Institute, Building 10 Center Drive, Bethesda, Maryland, 20892-1088
| | - Martin W. Brechbiel
- Radioimmune & Inorganic Chemistry Section, Radiation Oncology Branch, National Cancer Institute, Building 10 Center Drive, Bethesda, Maryland, 20892-1088
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12
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Lum LG, Davol PA. Retargeting T cells and immune effector cells with bispecific antibodies. CANCER CHEMOTHERAPY AND BIOLOGICAL RESPONSE MODIFIERS ANNUAL 2005; 22:273-91. [PMID: 16110617 DOI: 10.1016/s0921-4410(04)22013-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
The development of BiAbs for therapeutic applications in cancer shows promise. As our understanding of effector cell receptor biology for triggering of cytotoxic functions improves and the behavior of TAA and the targeting antibody engagement is elucidated, customized BiAb reagents can be engineered to optimize in vivo or ex vivo arming of T cells for targeting tumors. Additionally, other variables that require consideration in the equation for successful T cell immunotherapy include: the type of effector cells, their state of activation, the type of effector receptor being activated or tareeted. the presence of Tregs, the affinity of the anti-effector cell antibody and the anti-TAA antibody, the type of BiAb (mouse, humanized, or human), the number of binding sites for the T cells or TAA, the presence or absence of decoy antigen, whether the TAA modulates after being engaged by antibody, the type of tumor, the tumor burden, and last, but not least, the amount of 'immunologic' space available for the adoptively transferred cells to expand and function.
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Affiliation(s)
- Lawrence G Lum
- Immunotherapy Program, Adele R. Deof Cancer Center, Roger Williams Hospital, Providence, RI 02908, USA.
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13
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Horenstein AL, Crivellin F, Funaro A, Said M, Malavasi F. Design and scaleup of downstream processing of monoclonal antibodies for cancer therapy: from research to clinical proof of principle. J Immunol Methods 2003; 275:99-112. [PMID: 12667674 DOI: 10.1016/s0022-1759(03)00006-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Murine monoclonal antibodies (mAb) from cell culture supernatants have been purified in order to acquire clinical grade for in vivo cancer treatment. The starting material was purified by high performance liquid chromatography (HPLC) systems ranging from the analytical scale process to a scaleup to 1 g per batch. Three columns (Protein A affinity chromatography with single-step elution, hydroxyapatite (HA) chromatography followed by linear gradient elution and endotoxin removing-gel chromatography), exploiting different properties of the mAb were applied. The final batches of antibody were subjected to a large panel of tests for the purpose of evaluating the efficacy of the downstream processing. The resulting data have allowed us to determine the maximum number of times the column can be used and to precisely and thoroughly characterize antibody integrity, specificity, and potency according to in-house reference standards. The optimized bioprocessing is rapid, efficient, and reproducible. Not less importantly, all the techniques applied are characterized by costs which are affordable to medium-sized laboratories. They represent the basis for implementing immunotherapeutic protocols transferable to clinical medicine.
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Affiliation(s)
- Alberto L Horenstein
- Laboratory of Immunogenetics, Department of Genetics, Biology and Biochemistry, University of Torino Medical School, Turin, Italy.
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Abstract
Bispecific monoclonal antibodies have drawn considerable attention from the research community due to their unique structure against two different antigens. The two-arm structure of bsMAb allows researchers to place a therapeutic agent on one arm while allowing the other to specifically target the disease site. The therapeutic agent can be a drug, toxin, enzyme, DNA, radionuclide, etc. Furthermore, bsMAb may redirect the cytotoxicity of immune effector cells towards the diseased cells or induce a systemic immune response against the target. BsMAb holds great promise for numerous therapeutic needs in the light of: (1) recent breakthroughs in recombinant DNA technology, (2) the increased number of identified disease targets as the result of the completion of human genomic map project, and (3) a better understanding of the mechanism of human immune system. This review focuses on therapeutic applications and production of bsMAb while providing the up-to-date clinical trial information.
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Affiliation(s)
- Ying Cao
- Abbott Laboratories, Dept. 04A6, Bldg. AP8B, 100 Abbott Park Road, Abbott Park, IL 60064, USA.
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15
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Sen M, Wankowski DM, Garlie NK, Siebenlist RE, Van Epps D, LeFever AV, Lum LG. Use of anti-CD3 x anti-HER2/neu bispecific antibody for redirecting cytotoxicity of activated T cells toward HER2/neu+ tumors. JOURNAL OF HEMATOTHERAPY & STEM CELL RESEARCH 2001; 10:247-60. [PMID: 11359672 DOI: 10.1089/15258160151134944] [Citation(s) in RCA: 74] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Relapse after adjuvant chemotherapy or high-dose chemotherapy with stem cell transplant for high-risk breast cancer remains high and new strategies that provide additional antitumor effects are needed. This report describes methods to generate highly effective HER2/neu-specific cytotoxic T cells by arming activated T cells with anti-CD3 x anti-HER2/neu bispecific antibody (BsAb). OKT3 and 9184 (anti-HER2) monoclonal antibodies (mAb) were conjugated and used to arm T cells that were subsequently tested in binding, cytotoxicity, and cytokine secretion assays. Armed T cells aggregated and specifically killed HER2/neu(+) breast cancer cells. Cytotoxicity emerged after 6 days of culture, was higher in armed T cells than unarmed T cells at all effector to target ratios (E/T) tested, and increased as the arming dose was increased. At an E/T of 20:1, the mean cytotoxicity of armed activated T cells (ATC) from 10 normal subjects increased by 59 +/- 11% (+/-SD) over that seen in unarmed ATC (p < 0.001) and the mean cytotoxicity of armed ATC from 6 cancer patients increased by 32 +/- 9% above that seen for unarmed ATC (p < 0.0004). After arming, the BsAb persisted on ATC up to 72 h and armed ATC continued to be cytotoxic up to 54 h. The amount of interferon-gamma (IFN-gamma), tumor necrosis factor-alpha (TNF-alpha), and granulocyte-macrophage colony-stimulating factor (GM-CSF) secreted was 1699, 922, and 3092 pg/ml/10(6) cells per 24 h, respectively, when armed T cells were exposed to a HER2/neu(+) breast carcinoma cell line. These studies show the feasibility and clinical adaptability of this approach for generating large numbers of anti-HER2-specific, cytotoxic T cells for clinical trials.
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Affiliation(s)
- M Sen
- Blood Center of Southeastern Wisconsin, Milwaukee, WI 53201, USA
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Funaro A, Horenstein AL, Santoro P, Cinti C, Gregorini A, Malavasi F. Monoclonal antibodies and therapy of human cancers. Biotechnol Adv 2000; 18:385-401. [PMID: 14538101 DOI: 10.1016/s0734-9750(00)00043-4] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
This survey is an overview of the applications of murine, humanized and recombinant monoclonal antibodies for in vivo diagnostic and therapeutic applications. Monoclonal antibodies (mAb) have been applied to the diagnosis and therapy of an array of human diseases. The initial failures of early clinical trials have been overcome through the production of a new generation of mAb which features reduced immunogenicity and improved targeting abilities. The early models of mAb therapy were focused on enhancing the cytolytic mechanisms against the tumor cells. More recently, successful mAb-based therapies were targeted to molecules involved in the regulation of growth of cancer cells. This has highlighted the relevance of understanding receptor-mediated signaling events, and may provide new opportunities for anti-tumor antibody targeting. Despite all the difficulties, clinical data is outlining an increasingly significant role for antibody-mediated cancer therapy as a versatile and powerful instrument in cancer treatment. One reasonable expectation is that treatment at an earlier stage in the disease process or in minimal residual disease may be more advantageous.
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Affiliation(s)
- A Funaro
- Department of Genetics, Biology and Biochemistry, University of Turin, Turin, Italy
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