ArticleDiscover oncology2025
Evaluating the immune effector functions induced by humanized anti-CD99 antibody in eliminating T lymphoblastic leukemia/lymphoma cells.
Article in Discover oncology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
2 citing papers in PubMed.
- Comparative In Vitro Apoptotic Activity of Two Chimeric Anti-CD99 Antibodies Recognizing Distinct CD99 Regions in T-ALL Models.Biomedicines · 2026Article
- ESM1 drives cancer angiogenesis and bevacizumab resistance via trioleate synthesis.Neoplasia (New York, N.Y.) · 2026Article
Corrections and comments
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Authors and funding
8 authors.
Funding
Abstract
Monoclonal antibodies (mAbs) have emerged as targeted immunotherapies with clinical effectiveness and low adverse effects for various cancers. However, antibody drugs for treating aggressive T cell malignancies, T lymphoblastic leukemia/lymphoma (T-ALL/T-LBL), are still limited. Therefore, a potential mAb for treating T-ALL/T-LBL with minimal toxicity to normal cells needs to be developed. We have previously demonstrated that our in-house produced mouse anti-human CD99 mAb MT99/3 and its humanized version, HuMT99/3, which recognize a newly identified epitope of CD99 can induce apoptosis of T-ALL/T-LBL cells without affecting non-malignant peripheral blood cells. Nevertheless, the immune effector functions activated by HuMT99/3 against T-ALL/T-LBL cells remain unexplored. In this study, we evaluated the anticancer activities of HuMT99/3 against T-ALL/T-LBL cells via immune effector functions. T-ALL/T-LBL cell lines were used as target cells, including Jurkat E6.1, MOLT-4, and SUP-T1. The results demonstrated that HuMT99/3 could mediate potent antibody-dependent cellular cytotoxicity (ADCC) activity to kill all cell lines by activating the Fc receptor CD16 on effector cells. HuMT99/3 significantly enhanced the phagocytosis of monocytes on all three malignant T cell lines through antibody-dependent cellular phagocytosis (ADCP) activity. In addition, HuMT99/3 could activate complement to destroy T-ALL cell lines through complement-dependent cytotoxicity (CDC) activity, without affecting the T-LBL cell line and normal PBMCs. Furthermore, the mAb MT99/3 significantly inhibited tumor growth in a T-ALL xenograft model. These findings provide valuable insights into the development of monoclonal antibodies targeting CD99 as promising therapeutics for T-ALL/T-LBL treatment with minimal toxicity to normal peripheral blood cells.
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Registered trials
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