ArticleHemaSphere2024
A single-chain variable fragment-based bispecific T-cell activating antibody against CD117 enables T-cell mediated lysis of acute myeloid leukemia and hematopoietic stem and progenitor cells.
Article in HemaSphere, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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The trial behind it
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Who cites it
9 citing papers in PubMed.
- CAR T-cells targeting CD117 effectively eliminate mast cells in preclinical models of advanced systemic mastocytosis.Leukemia · 2026Article
- T cell-engaging bispecific antibodies for myeloid malignancies: Targets, formats, and clinical challenges.Cell reports. Medicine · 2026Review
- Enhancement of CD117-Targeted Bispecific T-cell Engagement by CD33-Targeted Bispecific T-cell Costimulation in Acute Myeloid Leukemia.Cancer research communications · 2026Article
- A Bispecific Anti-Fluorescein × Anti-CD3 T-cell Engager in Combination with Fluoresceinated Adaptors Enables Lysis of AML Cells.Molecular cancer therapeutics · 2026Article
- Transient mRNA-based CD117 CAR T cells effectively target acute myeloid leukemiaImmuno-oncology technology · 2026Article
- From monoclonals to bispecific T cell engagers: the evolving antibody-based therapy landscape in acute myeloid leukemia.Frontiers in immunology · 2026Review
- Targeting CD117 on hematopoietic stem and progenitor cells impairs CAR T cell activity.Molecular therapy : the journal of the American Society of Gene Therapy · 2025Article
- Immunotherapy for rapid bone marrow conditioning and leukemia depletion that allows efficient hematopoietic stem cell transplantation.Journal for immunotherapy of cancer · 2025Article
- Hematopoietic Stem Cell Transplantation: Recent Advances.Journal of clinical medicine · 2025Article
Corrections and comments
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Authors and funding
25 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Acute myeloid leukemia (AML) derives from hematopoietic stem and progenitor cells (HSPCs). To date, no AML-exclusive, non-HSPC-expressed cell-surface target molecules for AML selective immunotherapy have been identified. Therefore, to still apply surface-directed immunotherapy in this disease setting, time-limited combined immune-targeting of AML cells and healthy HSPCs, followed by hematopoietic stem cell transplantation (HSCT), might be a viable therapeutic approach. To explore this, we generated a recombinant single-chain variable fragment-based bispecific T-cell engaging and activating antibody directed against CD3 on T-cells and CD117, the surface receptor for stem cell factor, expressed by both AML cells and healthy HSPCs. Bispecific CD117xCD3 targeting induced lysis of CD117-positive healthy human HSPCs, AML cell lines and patient-derived AML blasts in the presence of T-cells at subnanomolar concentrations in vitro. Furthermore, in immunocompromised mice, engrafted with human CD117-expressing leukemia cells and human T-cells, the bispecific molecule efficiently prevented leukemia growth in vivo. Additionally, in immunodeficient mice transplanted with healthy human HSPCs, the molecule decreased the number of CD117-positive cells in vivo. Therefore, bispecific CD117xCD3 targeting might be developed clinically in order to reduce CD117-expressing leukemia cells and HSPCs prior to HSCT.
Identifiers
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.