We offer customized IL-15 molecule design (including Fc-fusion, IL-15Rα super-agonist complexes, and selective pro-cytokines) with optimized codon usage to facilitate high expression in selected microbial or mammalian systems.
IL-15 Engineering & Application Development Services
Creative Biolabs offers comprehensive solutions from rational molecular design to large-scale production. We provide custom engineering of IL-15 molecules, including highly potent super-agonists and targeted pro-cytokines with improved pharmacokinetics (PK) via Fc-fusion and complex stabilization. Clients gain a development advantage by receiving high-purity, structurally validated, and scalable bio-better IL-15 candidates, leading to reduced material generation timelines and accelerated progression toward advanced research phases.
Introduction What We Can Offer Types of Our Services Why Creative Biolabs Customer Reviews FAQs Related Services Contact Us
Engineering IL-15 for Cancer Immunotherapy
IL-15 is a potent, non-redundant cytokine crucial for the survival and cytotoxic function of NK and CD8+ T cells, essential effectors in anti-tumor immunity. Its distinct mechanism, which avoids stimulating Treg cells and activation-induced cell death (AICD) seen with IL-2, makes it uniquely superior for cancer immunotherapy. However, the native molecule's half-life is critically short. Creative Biolabs provides validated engineering to overcome this PK challenge, transforming this fundamental cytokine into a clinically viable, targeted therapeutic.
For project feasibility assessment, request a consultation.
Fig.1 IL-15 and its therapeutic applications. 1
What We Can Offer
Precision Engineering & Design Customization
Scalable Production
Benefit from our seamless one-stop fermentation service that scales from laboratory proof-of-concept to large-scale production, utilizing industrial fermentation tanks with a total capability exceeding 100,000 liters.
Flexible Process Optimization & QbD
Efficient upstream and downstream process development allows the fermentation process to run in batch, fed-batch, or continuous modes, with optimized culture conditions and the integration of quality-by-design (QbD) principles to maximize bio-better IL-15 yield and purity.
Guaranteed Product Stability and Purity
We ensure the stability of strains in cell banks and large-scale fermentations, with high-standard quality control tools used to quantify and evaluate product quality, guaranteeing the consistent structural integrity and purity required for advanced development.
IL-15 Engineering & Application Development Services at Creative Biolabs
IL-15 Half-Life Extension Engineering
Focuses on fusing the IL-15 molecule to a long-acting carrier, typically an Fc domain of IgG, to leverage FcRn recycling, dramatically extending the serum half-life and reducing required dosing frequency in models.
IL-15/IL-15Rα Complex Optimization
Designs and produces a stabilized, non-covalent or covalent complex of IL-15 and the IL-15Rα sushi domain, mimicking the potent native trans-presentation mechanism for a superior super-agonist effect.
IL-15 Potency Modulation Engineering
Utilizes targeted mutagenesis (e.g., within the Rβ binding site) to finely tune the receptor affinity. This strategy increases the functional index by reducing high-affinity binding to off-target cells and minimizing non-specific systemic effects.
Tumor-Targeted IL-15 Delivery Engineering
Integrates a tumor-specific targeting moiety (e.g., an antibody fragment or peptide) or a tumor-microenvironment (TME) cleavable linker to create pro-cytokines that are only activated in situ, minimizing non-specific peripheral activity.
Lymphocyte Targeted IL-15 Delivery Engineering
Focuses on creating specialized IL-15 fusions designed for enhanced ex vivo expansion and in vivo persistence support of adoptive cell transfer (ACT) products, such as CAR T and CAR NK cells, often targeting the IL-15-AKT-XBP1s pathway for superior survival.
Why Choose Us?
| Key Advantages | Unique Features |
|---|---|
| Treg-Sparing Expertise | We specialize in IL-15 mutein design that selectively targets the IL-2Rβ/γ chains, critically reducing the activation of immunosuppressive Treg cells and preserving the anti-tumor immune environment. |
| Proprietary Computational Modeling | Our advanced computational modeling and disulfide scanning protocols accelerate the identification of optimally stabilized IL-15/IL-15Rα superagonist complexes. |
| Validated Cell Armoring | We are experts in generating IL-15-Armored CAR T cells that co-express mbIL15 to achieve autocrine/paracrine stimulation, resulting in superior in vivo T cell memory and persistence. |
To fully understand the Creative Biolabs value proposition: inquiry and formal quotation.
Customer Reviews
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Extended PK Profile
Using Creative Biolabs' Fc-Fusion proteins in our translational oncology research has significantly improved the in vivo experimental window. The extended half-life means we can maintain therapeutic NK and CD8+ T-cell activation with far fewer doses. - Dr. T**a L***n. -
Tuned Activity & Selectivity
The service has greatly facilitated our work on combination studies. By using a molecule with tuned receptor affinity, we confirmed a clear increase in desired cell selectivity and minimized non-specific effects compared to earlier, high-affinity super-agonists. - Dr. D*m S****z.
FAQs
Q Can your engineered IL-15 variants be used for ex vivo expansion of CAR cells, or are they only for in vivo research models?
A Our IL-15 variants, particularly those from the lymphocyte-targeted delivery service, are specifically optimized for ACT manufacturing. Their enhanced stability and potency make them superior to standard cytokines for maximizing the yield and functional persistence of CAR T and CAR NK cells, ensuring robust starting material for advanced research.
Q How do you address the risk of immune cell hypo-responsiveness often seen with high-concentration cytokine exposure?
A We tackle this through our potency modulation and tumor-targeted services. By using precise mutagenesis, we can tune receptor affinity to avoid overstimulation, and by designing pro-cytokines that only release IL-15 in a specific microenvironment, we minimize chronic peripheral exposure that leads to reduced cellular response.
Related Services
Purification Development
For general high-quality, large-scale production of other cytokines, growth factors, or related proteins needed for your preclinical platform.
Learn More →CAR-NK Cell Design and Manufacturing
Provides comprehensive services for scFv optimization, CAR design, and gene synthesis, directly enabling the preparation of CAR NK cells before IL-15 expansion protocols.
Learn More →How to Contact Us
Creative Biolabs is committed to accelerating the development of superior IL-15 molecules. Our expertise in rational design, Fc-fusion, and complex stabilization ensures your molecule moves from concept to advanced research with maximum potency and stability. To learn more about how our services can accelerate your research, please contact us.
Reference
- Zhou, Yang et al. "Interleukin 15 in Cell-Based Cancer Immunotherapy." International journal of molecular sciences vol. 23,13 7311. 30 Jun. 2022. Distributed under an Open Access license CC BY 4.0, without modification. https://doi.org/10.3390/ijms23137311
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