IL15 top right

rHu IL-15 outfitted for closed-system manufacturing.
See why everyone is choosing Akron cytokines.

Akron’s Recombinant Human Interleukin-15 (rHu IL-15) Closed System Solutions™ (CSS) is manufactured following all relevant cGMP guidelines for ancillary materials. The rHu IL-15 active substance is supported by a Type II Master File (MF) on file with the FDA, which can be referenced during your drug or biologic application process.

Akron’s rHu IL-15 is a single chain, 13 kDa, non-glycosylated cytokine analog expressed in E. coli, containing 115 amino acids. The downstream purification process uses a multi-step orthogonal approach, without the use of affinity tags, to minimize exogenous impurities and ensure the delivery of highly purified and active substance for further manufacturing applications.

The liquid rHu IL-15 CSS product is packaged in a sterile fluoropolymer bag with two different weldable tubing connection options, allowing for easy incorporation into modern closed-system cell culture bioprocessing protocols. rHu IL-15 CSS increases safety and ease of use by eliminating the reconstitution step during manufacture and allows for the introduction of cytokine material into culture media in a fully contained manner to maximize sterility. Sterile filtration and aseptic filling are followed by Endotoxin and Sterility testing performed per USP/EP on the final product. See product Packaging features below.


Active Substance

• Type II eCTD MF (#026085) on file with FDA
• Carrier protein-free formulation
• All raw materials are compliant, controlled, and traceable under Akron’s Quality Management System (QMS)


Manufacturing

• Multi-step downstream purification strategy excluding affinity tags
• Commercial-scale production capacity
• E. coli expression system
• Sterile filtration and aseptic filling


Packaging

• Sterile bag chamber – 8-mil fluoropolymer film providing inert bio-reactivity, structural integrity, and minimal gas transmission
• Two-part tube weldable tube - proximal 6” portion made from weldable TPE AdvantaFlex® (1/8” ID x 1/4” OD), and the distal 6” portion made from standard weldable PVC (3/32” ID x 5/32” OD)
• Primary packaging is plasticizer free
• Primary packaging materials extensively validated, controlled, and qualified to ensure a consistent experience
• Every bag packed in individual protective cassette and shipped in validated CSafe Parcel insulated shipper


Quality

• Relevant cGMP guidelines used in manufacture, testing, and release
- USP <1043>, Ancillary Materials for Cell, Gene, and Tissue-Engineered Products
- EP 5.2.12, Raw Materials of Biological Origin for the Production of Cell-based and Gene Therapy Medicinal Products
- ISO 20399:2022, Biotechnology - Ancillary Materials Present During the Production of Cellular Therapeutic Products and Gene Therapy Products


Stability

• Under long-term stability program
• Store at 2-8 °C
• Transport with cold packs
• Do not freeze


Methods of Use

There are two different options available for connecting to and extracting the liquid solution from Akron’s rHu IL-15 CSS product (for full instructions, see “Methods of Use” document):
1) Weldable connection via top TPE AdvantaFlex® section (1/8” ID x 1/4” OD)
2) Weldable connection via bottom PVC section (3/32” ID x 5/32” OD)


For Use Statement

For research use or further manufacturing use in ex vivo cell therapy applications only. This product is not intended for direct in vivo use or for direct clinical use as a drug, therapeutic, biologic, or medical device.

• Appearance
• pH
• ID via SDS-PAGE
• Biological Activity
• Purity via Reducing SDS-PAGE
• Purity via Non-reducing SDS-PAGE
• Bacterial Endotoxins
• Sterility

IL-15 is notable in that it shares several functions attributed to IL-2, including stimulating the proliferation of several types of T cells, augmenting the proliferation of certain B cells, and stimulating the generation, proliferation, and activation of NK cells. These shared functions are due to the great similarity between the IL-15 and IL-2 trimeric receptor proteins (which share 2 out of their 3 subunits) and the shared use of certain signal transduction mechanisms. Furthermore, IL-15 plays a unique role in the protection of neutrophils from apoptosis and the stimulation of critical protein expression in dendritic cells. Its potential therapeutic use in the treatment of cancer is a focus of ongoing investigation with a promising safety and efficacy profile. Akron’s cGMP-compliant rHu IL-15 can be used to promote the activation and differentiation of CAR-T cells, TCR-T cells, Tregs, TILs, NK cells, NKTs, and Th17 cells.

Aliquot Sizes & Formats

Bags (50 μg) Cat. # AR1003-0050 (10 μg/mL)

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