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Wu JH, Pennesi E, Bautista F, Garrett M, Fukuhara K, Brivio E, Ammerlaan ACJ, Locatelli F, van der Sluis IM, Rossig C, Chen-Santel C, Bielorai B, Petit A, Starý J, Díaz-de-Heredia C, Rives S, O'Marcaigh A, Rizzari C, Engstler G, Nysom K, Rubio-San-Simón A, Bruno B, Bertrand Y, Brethon B, Rialland F, Plat G, Dirksen U, Sramkova L, Zwaan CM, Huitema ADR. Population Pharmacokinetics of Inotuzumab Ozogamicin in Pediatric Relapsed/Refractory B-Cell Precursor Acute Lymphoblastic Leukemia: Results of Study ITCC-059. Clin Pharmacokinet 2024; 63:981-997. [PMID: 38907948 PMCID: PMC11271359 DOI: 10.1007/s40262-024-01386-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/19/2024] [Indexed: 06/24/2024]
Abstract
BACKGROUND AND OBJECTIVE Inotuzumab ozogamicin is an antibody-drug conjugate approved for treating relapsed/refractory B-cell precursor acute lymphoblastic leukemia (BCP-ALL) in adults. Pediatric pharmacokinetic data of inotuzumab ozogamicin are lacking. This study is the first to examine the population pharmacokinetics of inotuzumab ozogamicin in pediatric patients with relapsed/refractory BCP-ALL. METHODS From 531 adult patients with B-cell non-Hodgkin's lymphoma, 234 adult patients with BCP-ALL, and 53 pediatric patients with BCP-ALL, 8924 inotuzumab ozogamicin serum concentrations were analyzed using non-linear mixed-effects modeling. A published adult inotuzumab ozogamicin population-pharmacokinetic model, a two-compartment model with linear and time-dependent clearance, was adapted to describe the pediatric data. RESULTS Modifications in this analysis, compared to the published adult model, included: (i) re-estimating pharmacokinetic parameters and covariate effects; (ii) modifying covariate representation; and (iii) introducing relevant pediatric covariate effects (age on the decay coefficient of time-dependent clearance and ALL effect (disease type and/or different bioanalytical analysis methods) on initial values of time-dependent clearance). For patients with relapsed/refractory BCP-ALL, increasing age was associated with a decreasing decay coefficient of time-dependent clearance, reflecting that the target-mediated drug clearance declines more rapidly in children. In pediatric BCP-ALL, the median [interquartile range] cumulative area under the concentration-time curve was significantly higher among responders (n = 42) versus non-responders (n = 10) at the end of the first cycle (26.1 [18.9-35.0] vs 10.1 [9.19-16.1], × 103 ng*h/mL, p < 0.001). From simulations performed at the recommended pediatric phase II dose, inotuzumab ozogamicin exposure reached a similar level as observed in responding pediatric trial participants. CONCLUSIONS The pharmacokinetic profile of inotuzumab ozogamicin in pediatric patients with relapsed/refractory BCP-ALL was well described in this study. No dose adjustment is required clinically for pediatric patients with BCP-ALL based on the simulated inotuzumab ozogamicin exposure at the recommended pediatric phase II dose, promising efficacy and acceptable tolerability.
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Affiliation(s)
- Jen-Hao Wu
- Department of Pediatric Oncology, Erasmus MC-Sophia Children's Hospital Rotterdam, Wytemaweg 80, 3015 CN, Rotterdam, The Netherlands
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
| | - Edoardo Pennesi
- Department of Pediatric Oncology, Erasmus MC-Sophia Children's Hospital Rotterdam, Wytemaweg 80, 3015 CN, Rotterdam, The Netherlands
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
| | | | - May Garrett
- Pfizer Global Pharmacometrics, San Diego, CA, USA
| | | | - Erica Brivio
- Department of Pediatric Oncology, Erasmus MC-Sophia Children's Hospital Rotterdam, Wytemaweg 80, 3015 CN, Rotterdam, The Netherlands
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
| | - Anneke C J Ammerlaan
- Department of Pediatric Oncology, Erasmus MC-Sophia Children's Hospital Rotterdam, Wytemaweg 80, 3015 CN, Rotterdam, The Netherlands
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
| | - Franco Locatelli
- Department of Hematology, Oncology and of Cell and Gene Therapy, IRCCS Ospedale Pediatrico Bambino Gesú, Catholic University of the Sacred Heart, Rome, Italy
| | - Inge M van der Sluis
- Department of Pediatric Oncology, Erasmus MC-Sophia Children's Hospital Rotterdam, Wytemaweg 80, 3015 CN, Rotterdam, The Netherlands
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
| | - Claudia Rossig
- Pediatric Hematology and Oncology, University Children's Hospital Muenster, Muenster, Germany
| | - Christiane Chen-Santel
- Department of Pediatrics, Division of Oncology and Hematology, Charité-Universitätsmedizin Berlin, German Cancer Consortium (DKTK) site Berlin, National Center for Tumor diseases (NCT) site Berlin, Berlin, Germany
| | - Bella Bielorai
- Division of Pediatric Hematology and Oncology, Sheba Medical Center, Ramat-Gan, Israel
| | - Arnaud Petit
- Department of Pediatric Hematology and Oncology, Hopital Armand Trousseau, APHP, Sorbonne Université, Paris, France
| | - Jan Starý
- Department of Pediatric Hematology and Oncology, University Hospital Motol, Prague, Czech Republic
| | - Cristina Díaz-de-Heredia
- Division of Pediatric Hematology and Oncology. Hospital, Universitari Vall d'Hebron, Barcelona, Spain
| | - Susana Rives
- Pediatric Oncology and Hematology Department, Hospital Sant Joan de Déu de Barcelona, Barcelona, Spain
- Institut de Recerca Sant Joan de Déu, Barcelona, Spain
| | | | - Carmelo Rizzari
- Pediatric Hematology-Oncology Unit, Department of Pediatrics, IRCCS Foundation San Gerardo dei Tintori, Monza and University of Milano-Bicocca, Monza, Italy
| | - Gernot Engstler
- St Anna Children's Hospital, Medical University of Vienna, Vienna, Austria
| | - Karsten Nysom
- Department of Paediatrics and Adolescent Medicine, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark
| | - Alba Rubio-San-Simón
- Department of Pediatric Oncology and Hematology, Hospital Niño Jesús, Madrid, Spain
| | - Benedicte Bruno
- Pediatric Hematology, Hôpital Jeanne de Flandre, , CHRU de Lille, Lille, France
| | - Yves Bertrand
- Institute of Pediatric Hematology and Oncology, Civil Hospital of Lyon, Claude Bernard University, Lyon, France
| | - Benoît Brethon
- Department of Pediatric Hematology, Hôpital Robert-Debré, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Fanny Rialland
- Service Onco-Hématologie Pédiatrique, Hôpital Mère-Enfant, Nantes University Hospital, Nantes, France
| | - Geneviève Plat
- Service d'Hématologie-Immunologie-Oncologie, Hôpital des Enfants, CHU Toulouse, Toulouse, France
| | - Uta Dirksen
- Pediatrics III, University Hospital Essen, German Cancer Consortium (DKTK) Site Essen, Essen, Germany
| | - Lucie Sramkova
- Department of Paediatric Haematology and Oncology, 2nd Faculty of Medicine, Charles University in Prague and Motol University Hospital, Prague, Czech Republic
| | - C Michel Zwaan
- Department of Pediatric Oncology, Erasmus MC-Sophia Children's Hospital Rotterdam, Wytemaweg 80, 3015 CN, Rotterdam, The Netherlands.
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands.
| | - Alwin D R Huitema
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
- Department of Pharmacy and Pharmacology, Netherlands Cancer Institute, Amsterdam, The Netherlands
- Department of Clinical Pharmacy, University Medical Center Utrecht, Utrecht, The Netherlands
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2
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Lunn-Halbert MC, Laszlo GS, Erraiss S, Orr MT, Jessup HK, Thomas HJ, Chan H, Jahromi MA, Lloyd J, Cheung AF, Chang GP, Dichwalkar T, Fallon D, Grinberg A, Rodríguez-Arbolí E, Lim SYT, Kehret AR, Huo J, Cole FM, Scharffenberger SC, Walter RB. Preclinical Characterization of the Anti-Leukemia Activity of the CD33/CD16a/NKG2D Immune-Modulating TriNKET ® CC-96191. Cancers (Basel) 2024; 16:877. [PMID: 38473239 PMCID: PMC10931532 DOI: 10.3390/cancers16050877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 02/11/2024] [Accepted: 02/20/2024] [Indexed: 03/14/2024] Open
Abstract
Increasing efforts are focusing on natural killer (NK) cell immunotherapies for AML. Here, we characterized CC-96191, a novel CD33/CD16a/NKG2D immune-modulating TriNKET®. CC-96191 simultaneously binds CD33, NKG2D, and CD16a, with NKG2D and CD16a co-engagement increasing the avidity for, and activation of, NK cells. CC-96191 was broadly active against human leukemia cells in a strictly CD33-dependent manner, with maximal efficacy requiring the co-engagement of CD16a and NKG2D. A frequent CD33 single nucleotide polymorphism, R69G, reduced CC-96191 potency but not maximal activity, likely because of reduced CD33 binding. Similarly, the potency, but not the maximal activity, of CC-96191 was reduced by high concentrations of soluble CD33; in contrast, the soluble form of the NKG2D ligand MICA did not impact activity. In the presence of CD33+ AML cells, CC-96191 activated NK cells but not T cells; while maximum anti-AML efficacy was similar, soluble cytokine levels were 10- to >100-fold lower than with a CD33/CD3 bispecific antibody. While CC-96191-mediated cytolysis was not affected by ABC transporter proteins, it was reduced by anti-apoptotic BCL-2 family proteins. Finally, in patient marrow specimens, CC-96191 eliminated AML cells but not normal monocytes, suggesting selectivity of TriNKET-induced cytotoxicity toward neoplastic cells. Together, these findings support the clinical exploration of CC-96191 as in NCT04789655.
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Affiliation(s)
- Margaret C. Lunn-Halbert
- Translational Science and Therapeutics Division, Fred Hutchinson Cancer Center, Seattle, WA 98109, USA
| | - George S. Laszlo
- Translational Science and Therapeutics Division, Fred Hutchinson Cancer Center, Seattle, WA 98109, USA
| | - Sarah Erraiss
- Translational Science and Therapeutics Division, Fred Hutchinson Cancer Center, Seattle, WA 98109, USA
| | - Mark T. Orr
- Immuno-Oncology Cellular Therapy Thematic Research Center, Bristol Myers Squibb, Seattle, WA 98109, USA
| | - Heidi K. Jessup
- Immuno-Oncology Cellular Therapy Thematic Research Center, Bristol Myers Squibb, Seattle, WA 98109, USA
| | - Heather J. Thomas
- Immuno-Oncology Cellular Therapy Thematic Research Center, Bristol Myers Squibb, Seattle, WA 98109, USA
| | - Henry Chan
- Bristol Myers Squibb, San Diego, CA 92121, USA
| | | | | | | | | | | | | | | | - Eduardo Rodríguez-Arbolí
- Translational Science and Therapeutics Division, Fred Hutchinson Cancer Center, Seattle, WA 98109, USA
- Department of Hematology, Hospital Universitario Virgen del Rocío, Instituto de Biomedicina de Sevilla (IBIS/CSIC/CIBERONC), University of Seville, 41013 Seville, Spain
| | - Sheryl Y. T. Lim
- Translational Science and Therapeutics Division, Fred Hutchinson Cancer Center, Seattle, WA 98109, USA
| | - Allie R. Kehret
- Translational Science and Therapeutics Division, Fred Hutchinson Cancer Center, Seattle, WA 98109, USA
| | - Jenny Huo
- Translational Science and Therapeutics Division, Fred Hutchinson Cancer Center, Seattle, WA 98109, USA
| | - Frances M. Cole
- Translational Science and Therapeutics Division, Fred Hutchinson Cancer Center, Seattle, WA 98109, USA
| | - Samuel C. Scharffenberger
- Molecular Medicine and Mechanisms of Disease (M3D) Ph.D. Program, University of Washington, Seattle, WA 98195, USA
| | - Roland B. Walter
- Translational Science and Therapeutics Division, Fred Hutchinson Cancer Center, Seattle, WA 98109, USA
- Department of Medicine, Division of Hematology and Oncology, University of Washington, Seattle, WA 98195, USA
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA 98195, USA
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3
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Riccardi F, Dal Bo M, Macor P, Toffoli G. A comprehensive overview on antibody-drug conjugates: from the conceptualization to cancer therapy. Front Pharmacol 2023; 14:1274088. [PMID: 37790810 PMCID: PMC10544916 DOI: 10.3389/fphar.2023.1274088] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 09/07/2023] [Indexed: 10/05/2023] Open
Abstract
Antibody-Drug Conjugates (ADCs) represent an innovative class of potent anti-cancer compounds that are widely used in the treatment of hematologic malignancies and solid tumors. Unlike conventional chemotherapeutic drug-based therapies, that are mainly associated with modest specificity and therapeutic benefit, the three key components that form an ADC (a monoclonal antibody bound to a cytotoxic drug via a chemical linker moiety) achieve remarkable improvement in terms of targeted killing of cancer cells and, while sparing healthy tissues, a reduction in systemic side effects caused by off-tumor toxicity. Based on their beneficial mechanism of action, 15 ADCs have been approved to date by the market approval by the Food and Drug Administration (FDA), the European Medicines Agency (EMA) and/or other international governmental agencies for use in clinical oncology, and hundreds are undergoing evaluation in the preclinical and clinical phases. Here, our aim is to provide a comprehensive overview of the key features revolving around ADC therapeutic strategy including their structural and targeting properties, mechanism of action, the role of the tumor microenvironment and review the approved ADCs in clinical oncology, providing discussion regarding their toxicity profile, clinical manifestations and use in novel combination therapies. Finally, we briefly review ADCs in other pathological contexts and provide key information regarding ADC manufacturing and analytical characterization.
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Affiliation(s)
- Federico Riccardi
- Experimental and Clinical Pharmacology Unit, Centro di Riferimento Oncologico (CRO), IRCCS, Aviano, Italy
| | - Michele Dal Bo
- Experimental and Clinical Pharmacology Unit, Centro di Riferimento Oncologico (CRO), IRCCS, Aviano, Italy
| | - Paolo Macor
- Department of Life Sciences, University of Trieste, Trieste, Italy
| | - Giuseppe Toffoli
- Experimental and Clinical Pharmacology Unit, Centro di Riferimento Oncologico (CRO), IRCCS, Aviano, Italy
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4
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Dumontet C, Reichert JM, Senter PD, Lambert JM, Beck A. Antibody-drug conjugates come of age in oncology. Nat Rev Drug Discov 2023; 22:641-661. [PMID: 37308581 DOI: 10.1038/s41573-023-00709-2] [Citation(s) in RCA: 119] [Impact Index Per Article: 119.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/20/2023] [Indexed: 06/14/2023]
Abstract
Antibody-drug conjugates (ADCs) combine the specificity of monoclonal antibodies with the potency of highly cytotoxic agents, potentially reducing the severity of side effects by preferentially targeting their payload to the tumour site. ADCs are being increasingly used in combination with other agents, including as first-line cancer therapies. As the technology to produce these complex therapeutics has matured, many more ADCs have been approved or are in late-phase clinical trials. The diversification of antigenic targets as well as bioactive payloads is rapidly broadening the scope of tumour indications for ADCs. Moreover, novel vector protein formats as well as warheads targeting the tumour microenvironment are expected to improve the intratumour distribution or activation of ADCs, and consequently their anticancer activity for difficult-to-treat tumour types. However, toxicity remains a key issue in the development of these agents, and better understanding and management of ADC-related toxicities will be essential for further optimization. This Review provides a broad overview of the recent advances and challenges in ADC development for cancer treatment.
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Affiliation(s)
- Charles Dumontet
- CRCL INSERM 1052/CNRS 5286, University of Lyon, Hospices Civils de Lyon, Lyon, France.
| | | | | | | | - Alain Beck
- Institut de Recherche Pierre Fabre, CIPF, Saint-Julien-en-Genevois, France
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Gbadamosi MO, Shastri VM, Elsayed AH, Ries R, Olabige O, Nguyen NHK, De Jesus A, Wang YC, Dang A, Hirsch BA, Alonzo TA, Gamis A, Meshinchi S, Lamba JK. A ten-gene DNA-damage response pathway gene expression signature predicts gemtuzumab ozogamicin response in pediatric AML patients treated on COGAAML0531 and AAML03P1 trials. Leukemia 2022; 36:2022-2031. [PMID: 35688939 PMCID: PMC9357169 DOI: 10.1038/s41375-022-01622-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 05/17/2022] [Accepted: 05/27/2022] [Indexed: 02/03/2023]
Abstract
Gemtuzumab ozogamicin (GO) is an anti-CD33 monoclonal antibody linked to calicheamicin, a DNA damaging agent, and is a well-established therapeutic for treating acute myeloid leukemia (AML). In this study, we used LASSO regression modeling to develop a 10-gene DNA damage response gene expression score (CalDDR-GEx10) predictive of clinical outcome in pediatric AML patients treated with treatment regimen containing GO from the AAML03P1 and AAML0531 trials (ADE + GO arm, N = 301). When treated with ADE + GO, patients with a high CalDDR-GEx10 score had lower complete remission rates (62.8% vs. 85.5%, P = 1.7 7 * 10-5) and worse event-free survival (28.7% vs. 56.5% P = 4.08 * 10-8) compared to those with a low CalDDR-GEx10 score. However, the CalDDR-GEx10 score was not associated with clinical outcome in patients treated with standard chemotherapy alone (ADE, N = 242), implying the specificity of the CalDDR-GEx10 score to calicheamicin-induced DNA damage response. In multivariable models adjusted for risk group, FLT3-status, white blood cell count, and age, the CalDDR-GEx10 score remained a significant predictor of outcome in patients treated with ADE + GO. Our findings present a potential tool that can specifically assess response to calicheamicin-induced DNA damage preemptively via assessing diagnostic leukemic cell gene expression and guide clinical decisions related to treatment using GO.
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Affiliation(s)
- Mohammed O Gbadamosi
- Department of Pharmacotherapy and Translational Research, College of Pharmacy, University of Florida, Gainesville, FL, USA
| | - Vivek M Shastri
- Department of Pharmacotherapy and Translational Research, College of Pharmacy, University of Florida, Gainesville, FL, USA
| | - Abdelrahman H Elsayed
- Department of Pharmacotherapy and Translational Research, College of Pharmacy, University of Florida, Gainesville, FL, USA
| | - Rhonda Ries
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Oluwaseyi Olabige
- Department of Pharmacotherapy and Translational Research, College of Pharmacy, University of Florida, Gainesville, FL, USA
| | - Nam H K Nguyen
- Department of Pharmacotherapy and Translational Research, College of Pharmacy, University of Florida, Gainesville, FL, USA
| | - Angelica De Jesus
- Department of Pharmacotherapy and Translational Research, College of Pharmacy, University of Florida, Gainesville, FL, USA
| | | | - Alice Dang
- COG Statistics and Data Center, Monrovia, CA, USA
| | | | - Todd A Alonzo
- COG Statistics and Data Center, Monrovia, CA, USA
- Biostatistics Division, University of Southern California, Los Angeles, CA, USA
| | - Alan Gamis
- Department of Hematology-Oncology, Children's Mercy Hospitals and Clinics, Kansas City, MO, USA
| | - Soheil Meshinchi
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Jatinder K Lamba
- Department of Pharmacotherapy and Translational Research, College of Pharmacy, University of Florida, Gainesville, FL, USA.
- Center for Pharmacogenomics and Precision Medicine, University of Florida, Gainesville, FL, USA.
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Zhou Y, Wai-Choi Tse E, Leung R, Cheung E, Li H, Sun H. Multiplex Single-Cell Analysis of Cancer Cells Enables Unbiased Uncovering Subsets Associated with Cancer Relapse: Heterogeneity of Multidrug Resistance in Precursor B-ALL. ChemMedChem 2021; 17:e202100638. [PMID: 34783169 DOI: 10.1002/cmdc.202100638] [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: 09/30/2021] [Revised: 11/13/2021] [Indexed: 11/08/2022]
Abstract
Earlier detection of biomarkers responsible for cancer relapse facilitates more rational cancer treatment regimens to be designed. Herein, we develop a mass cytometry-based strategy for unbiased mining of cell subsets that potentially contribute to cancer recurrence through panoramic examination of the immunophenotypic features and multidrug resistance characteristics. The incorporation of metal tags enables multiplexed information of single cells to be interrogated based on metal fingerprint. Using acute lymphoblastic leukemia (B-ALL) as a showcase, we show overexpressed multidrug resistance biomarkers, i. e., BCRP, Bcl-2, MRP1, and P-gp in B-ALL cells compared with healthy control, and a positive correlation among different multidrug resistance biomarkers. Different cell subsets with multidrug resistance are well-defined, featured with CD34+ CD38+ CD10- and CD34+ CD38+/int CD10+ . Importantly, we uncovered that CD34 expression level is positively correlated to multidrug resistance, indicative of a higher potential of immature cells to induce B-ALL relapse. In addition, the cell subsets positively expressing CD73 and CD304 (CD34+ CD10+ CD304+ ; CD34+ CD38+/int CD10+ CD73+ ) also overexpress multidrug resistance biomarkers, suggesting that they may serve as additional new biomarkers for B-ALL stratification and prognosis. Our data provide the first evidence that highly expressed multidrug resistance biomarkers in certain cell subpopulations with specific immunophenotypes may potentially induce B-ALL recurrence. The incorporation of multidrug resistance features with cell phenotypes using mass cytometry proposed in this study provides a general strategy for risk assessment and the prediction of recurrence of different types of cancers.
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Affiliation(s)
- Ying Zhou
- Department of Chemistry, CAS-HKU Joint Laboratory of Metallomics on Health and Environment, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Eric Wai-Choi Tse
- Department of Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong, China
| | - Rock Leung
- Department of Pathology, Queen Mary Hospital, Pokfulam Road, Hong Kong, China
| | - Edwin Cheung
- Cancer Centre, Centre of Precision Medicine Research & Training, Faculty of Health Sciences, University of Macau, Macau, China
| | - Hongyan Li
- Department of Chemistry, CAS-HKU Joint Laboratory of Metallomics on Health and Environment, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Hongzhe Sun
- Department of Chemistry, CAS-HKU Joint Laboratory of Metallomics on Health and Environment, The University of Hong Kong, Pokfulam Road, Hong Kong, China
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CD33 Expression and Gentuzumab Ozogamicin in Acute Myeloid Leukemia: Two Sides of the Same Coin. Cancers (Basel) 2021; 13:cancers13133214. [PMID: 34203180 PMCID: PMC8268215 DOI: 10.3390/cancers13133214] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 06/17/2021] [Accepted: 06/23/2021] [Indexed: 01/10/2023] Open
Abstract
Simple Summary Roughly 85–90% of adult and pediatric acute myeloid leukemia (AML) are CD33-positive. Gemtuzumab ozogamicin (GO), a humanized murine IgG4 anti-CD33 antibody, is the first target therapy approved in AML therapeutic scenario. This review focuses on current biological information and clinical data from several studies investigating the use of GO in patients with AML. Over the years, flow cytometry, cytogenetics, molecular techniques, and genotyping studies of CD33 SNPs have provided a comprehensive analysis of promising biomarkers for GO responses and have potentially helped to identify subgroups of patients that may benefit from GO addition to standard chemotherapies. Increased understanding of molecular mutations, altered intracellular pathways, and their potential relationship with CD33 expression may open new therapeutic landscapes based on combinatorial regimens in an AML scenario. Abstract Acute myeloid leukemia (AML), the most frequent acute leukemia in adults, has been historically treated with infusional cytarabine (ara-c) + daunorubicin (3 + 7) for at least 40 years. The first “target therapy” to be introduced was the monoclonal anti-CD33 gemtuzumab ozogamicin (GO) in 2004. Unfortunately, in 2010 it was voluntarily withdrawn from the market both for safety reasons related to potential liver toxicity and veno-occlusive disease (VOD) and because clinical studies failed to confirm the clinical benefit during induction and maintenance. Seven years later, GO was re-approved based on new data, including insights into its mechanism of action on its target receptor CD33 expressed on myeloid cells. The present review focuses on current biological information and clinical data from several studies investigating GO. Cytogenetic, molecular, and immunophenotypic data are now able to predict the potential positive advantages of GO, with the exception of high-risk AML patients who do not seem to benefit. GO can be considered a ‘repurposed drug’ that could be beneficial for some patients with AML, mostly in combination with new drugs already approved or currently in testing.
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Ganoderma lucidum Spore Polysaccharide Inhibits the Growth of Hepatocellular Carcinoma Cells by Altering Macrophage Polarity and Induction of Apoptosis. J Immunol Res 2021; 2021:6696606. [PMID: 33748291 PMCID: PMC7954632 DOI: 10.1155/2021/6696606] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 02/02/2021] [Accepted: 02/10/2021] [Indexed: 12/14/2022] Open
Abstract
Background Ganoderma lucidum has certain components with known pharmacological effects, including strengthening immunity and anti-inflammatory activity. G. lucidum seeds inherit all its biological characteristics. G. lucidum spore polysaccharide (GLSP) is the main active ingredient to enhance these effects. However, its specific biological mechanisms are not exact. Our research is aimed at revealing the specific biological mechanism of GLSP to enhance immunity and inhibit the growth of H22 hepatocellular carcinoma cells. Methods We extracted primary macrophages (Mø) from BALB/c mice and treated them with GLSP (800 μg/mL, 400 μg/mL, and 200 μg/mL) to observe its effects on macrophage polarization and cytokine secretion. We used GLSP and GLSP-intervened macrophage supernatant to treat H22 tumor cells and observed their effects using MTT and flow cytometry. Moreover, real-time fluorescent quantitative PCR and western blotting were used to observe the effect of GLSP-intervened macrophage supernatant on the PI3K/AKT and mitochondrial apoptosis pathways. Results In this study, GLSP promoted the polarization of primary macrophages to M1 type and the upregulation of some cytokines such as TNF-α, IL-1β, IL-6, and TGF-β1. The MTT assay revealed that GLSP+Mø at 400 μg/mL and 800 μg/mL significantly inhibited H22 cell proliferation in a dose-dependent manner. Flow cytometry analysis revealed that GLSP+Mø induced apoptosis and cell cycle arrest at the G2/M phase, associated with the expression of critical genes and proteins (PI3K, p-AKT, BCL-2, BAX, and caspase-9) that regulate the PI3K/AKT pathway and apoptosis. GLSP reshapes the tumor microenvironment by activating macrophages, promotes the polarization of primary macrophages to M1 type, and promotes the secretion of various inflammatory factors and cytokines. Conclusion Therefore, as a natural nutrient, GLSP is a potential agent in hepatocellular carcinoma cell treatment and induction of apoptosis.
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