Reagents and instruments for immunology, cell biology and molecular biology.
 
Animal-free tumor necrosis factors

Animal-free tumor necrosis factors

Animal-free tumor necrosis factors (TNFs), particularly recombinant TNF-α, represent ethically produced cytokines manufactured without animal-derived components, eliminating contamination risks while maintaining potent pro-inflammatory, cytotoxic, and immunomodulatory activities.

These GMP-grade proteins support advanced cell therapy manufacturing, tumor microenvironment studies, and drug screening with enhanced safety for clinical translation.

Production Without Animal Components

Traditional TNF-α production often involves mammalian cell cultures supplemented with fetal bovine serum, introducing potential TSE/BSE prions, viral pathogens, and lot-to-lot variability. Animal-free TNFs employ:

  • E. coli expression: Production in dedicated animal-free facilities using chemically defined media.
  • Non-animal purification: Hydrophobic interaction chromatography (HIC), ion exchange chromatography (IEX), and size exclusion chromatography (SEC) using synthetic resins.
  • Animal-free lyophilization: Use of human serum albumin alternatives or carrier-free formulations.
  • Endotoxin control: Stringent purification achieving levels <0.1 EU/µg through validated filtration processes.

Resulting proteins achieve >97% purity by SDS-PAGE and exhibit biological potency consistent with pharmacopeial standards.

Frequently Asked Questions (FAQ)

How can I quickly find a animal-free tnfs product?

To find a animal-free tnfs product, use the search function by name, product code, supplier, brand or sub-category. You can also browse the product families listed on the page to identify an available product code, an alternative or an equivalent product.

Does Quimigen stock several product codes in the animal-free tnfs category?

Yes, Quimigen distributes several product references in the animal-free tnfs category, sourced from specialist suppliers. Depending on the product family, references may vary in terms of format, packaging, brand, supplier, technical specifications or availability.

Can I request a quote for animal-free tnfs products?

Yes, you can request a quote for animal-free tnfs products from the product page or by contacting Quimigen (info@quimigen.pt). To help us process your enquiry, please provide, where possible, the product name, catalogue reference, required quantity, the supplier or brand you are looking for, and the country of delivery.

How can I find out if a animal-free tnfs product is available to order?

The availability of a animal-free tnfs product depends on the product code, supplier, packaging and country of delivery. For up-to-date information, please check the product details page or contact Quimigen with the product code or name of the product you are looking for.

What should I do if I cannot find the animal-free tnfs product I am looking for?

If the animal-free tnfs product you are looking for does not appear in the catalogue, please contact Quimigen with the available information: product name, reference number, supplier, brand, format or packaging. The team will be able to search for the reference number within its network of suppliers or suggest an available alternative.

Are all animal-free tnfs products available under the same terms and conditions?

No. Ordering, delivery, storage and documentation conditions may vary depending on the product type, the supplier and the applicable regulations. Certain product codes may require specific approval, specialised transport, a safety data sheet or additional information prior to ordering.

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