IO-202
IO-202 is a high-affinity LILRB4/ILT3 binder and myeloid checkpoint inhibitor. IO-202 blocks APOE binding and LILRB4 activation to reverse T-cell suppression and enhance T-cell cytotoxicity, while eliminating LILRB4-high-expressing leukemic blasts via ADCC and ADCP mechanisms. IO-202 promotes dendritic cell maturation and antigen presentation, reshapes the phenotype of tumor-associated macrophages, and reduces myeloid-derived suppressor cells. IO-202 is widely applicable to research on relapsed/refractory acute myeloid leukemia (AML), chronic myelomonocytic leukemia (CMML), and solid tumors.
For research use only. We do not sell to patients.
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Storage:
Please store the product under the recommended conditions in the Certificate of Analysis.
To place orders, for customer services and technical support, please contact: MedChemExpress USA
Tel: 609-228-6898 E-mail: [email protected] [email protected]
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Biological Activity
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Chemical Information
- Purity & Documentation
- References
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Help & FAQs
Biological Activity
Human IgG1 kappa
Human
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LILRB4 |
IO-202 reverses AML cell-mediated T-cell suppression and activates T-cell cytotoxicity against leukemic cells in vitro via high-affinity binding to human LILRB4 and blockade of APOE-mediated LILRB4 activation[1].
IO-202 (15 μg/mL; 2 days) enhances DC activation (increased CD86 and HLA-DR expression) and reduces a tolerogenic phenotype (decreased CD209 expression) when used to treat healthy human donor monocyte-derived dendritic cells during LPS stimulation[3].
IO-202 (15 μg/mL; 2 days during Mo-DC culture, 4 days during T cell co-culture) enhances DC activation marker expression, IL-12 production, and T cell-derived IFNγ production when used to treat human monocyte-derived dendritic cells during CD40L-induced maturation/activation and subsequent allogeneic T cell co-culture, but has no effect on immature Mo-DCs[3].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Cell Line:human monocyte-derived dendritic cells
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Concentration:15 μg/mL
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Incubation Time:2 days during Mo-DC culture, 4 days during T cell co-culture
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Result:Enhanced DC activation marker expression, IL-12 production, and T cell-derived IFNγ production.
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Animal Model:Cx3cr1-Cre/Rosa26-LILRB4 transgenic[3]
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Dosage:10 mg/kg
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Administration:administered on day 10 and day 20 post tumor implant
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Result:Achieved significant tumor growth inhibition with mean tumor volume at day 27 post tumor implant being substantially lower.
Reduced the frequencies of myeloid-derived suppressor cells (including PMN-MDSCs) among tumor-infiltrating leukocytes.
Increased the frequencies of conventional CD4+ T cells and NKT cells among tumor-infiltrating leukocytes.
Decreased the expression of the anti-inflammatory marker CD206 on tumor-associated macrophages (TAMs).
Increased MHCII expression on TAMs.
LILRB4/ILT3/CD85k
Unconjugated
The product can be reconstituted/diluted with sterile PBS or saline.
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Product Image
ELISA, FACS, Functional assay
Chemical Information
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Formulation
Please refer to the lot-specific COA for specific buffer information.
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Storage
Please store the product under the recommended conditions in the Certificate of Analysis.
Purity & Documentation
References
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
IO-202 Related Classifications
HY-P992389 Related Classifications
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