Qkine

Name: Qkine
Address: 1 Murdoch House, Cambridge, CB58HW, GB
Telephone: +441223491486

Qkine manufactures high-purity, animal-free growth factors, cytokines and other complex proteins.

10/08/2026

🌟New product

Ready-CEPT® 1000x cocktail is a defined formulation designed for improved stem cell survival and growth during routine passaging, cryopreservation, and freeze-thaw recovery.

Ready-CEPT is a single-vial cocktail of chroman-1 (a ROCK inhibitor), emricasan (a pan-caspase inhibitor), polyamines (putrescine, spermine, and spermidine; polycations for cell growth support), and trans-ISRIB (an ISR inhibitor).

View and buy on the Qkine website > https://zurl.co/ctX1D

Explore the full range of animal-free Bioscience media supplements on the Qkine website > https://zurl.co/EfTuN

06/08/2026

💚NEW application note!

Animal-free, defined culture system preserving chondrogenic phenotype: FRS™ Pioneer and animal origin-free TGF-β1

This application note evaluates FRS™ Pioneer from Media City Scientific supplemented with Qkine’s TGF-β1 PLUS™ and FGF-2 as a serum replacement for primary chondrocyte culture. We demonstrate that a fully defined system can match FBS-supplemented expansion while maintaining chondrogenic morphology.

Read full application note > https://zurl.co/tLCkM

Check out the products used in this application note -
FRS™ Pioneer – Fetal bovine serum replacement > https://zurl.co/e3pyS
Qkine uniquely animal-free TGF-β1 (Qk010) > https://zurl.co/JcqIT
Highly potent FGF-2 (145 aa) > https://zurl.co/lZgPw
GECKO™ – adherence solution > https://zurl.co/hrZH0

05/08/2026

Qkine have optimized the sequence and manufacture of IL-34 PLUS™ to produce a highly and consistently bioactive protein (patent pending GB 2514413.0).

IL-34 plays a key role for the development and maintenance of tissue-resident macrophages such as Langerhans cells in the skin and microglia in the brain.

Recombinant IL-34 can be used in the differentiation of induced pluripotent stem cells (iPSC) to microglia.

View and buy online > https://zurl.co/l2o7T

At Qkine we have used our protein engineering expertise to produce an animal origin-free IL-34 with bioactivity as potent as the most bioactive mammalian expressed protein.

View our technote for more details > https://zurl.co/I2TWB

03/08/2026

🌟New product

HiDef® B8 is a complete, serum-free, defined formulation designed for the feeder-free maintenance and expansion of human pluripotent stem cells (PSCs) in an undifferentiated state.

View and buy on the Qkine website > https://zurl.co/qw0L3

🧬Feeder-free, serum-free, defined cell culture medium for human PSCs
🧬 Versatile – allows enzyme-free passaging from multiple substrates and supports enzymatic single-cell passaging
🧬 Supports the stable expansion and maintenance of PSC lines for >50 passages without karyotypic abnormalities
🧬 Less frequent cell feeding eliminates the requirement for weekend labor. Take the weekend off!

Explore the full range of animal-free Bioscience media supplements on the Qkine website > https://zurl.co/5LaWb

30/07/2026

💚NEW application note!

Animal-free, defined media outperforms FBS for canine AD-MSC expansion: A case for lot-to-lot consistency

A collaborative project between Qkine , City Scientific and

This application note evaluates FRS™ Pioneer supplemented with Qkine growth factors for the culture of adipose-derived mesenchymal stem cells (AD-MSCs).

Read full application note > https://zurl.co/7SU0j

Check out the products used in this application note -
FRS™ Pioneer – Fetal bovine serum replacement > https://zurl.co/NtltL
PDGF-BB (Qk044) > https://zurl.co/tuxOx
Highly potent FGF-2 (145 aa) > https://zurl.co/vgfXV
GECKO™ – adherence solution > https://zurl.co/Q7D2X

29/07/2026

Macrophage colony-stimulating factor (M-CSF) regulates the survival, proliferation, differentiation, and functional activation of monocytes, including macrophages and dendritic cells.

Qkine recombinant M-CSF is manufactured in our facility in Cambridge, UK to be the highest quality for reproducible hematopoietic stem cell culture.

View Qkine M-CSF (Qk075) and buy online > https://zurl.co/QvWlq

Read the M-CSF bioactivity technote > https://zurl.co/lysC2

Contact us for academic discounts > [email protected]

22/07/2026

💚NEW application note!

FRS™ Pioneer: A broad-spectrum, chemically defined and animal-free serum replacement for primary cell culture

This application note evaluates FRS™ Pioneer across four primary cell types, including canine adipose-derived mesenchymal stem cells (AD-MSCs), chondrocytes, primary dermal fibroblasts, and skeletal muscle stem cells (MuSCs).

Using FRS™ Pioneer from City Scientific as both a 90% reduction strategy (9% FRS™ Pioneer + 1% FBS) and as a complete serum replacement supplemented with cell-type-optimized Qkine growth factors.

Read full application note > https://zurl.co/V3Brp

Check out the products used in this application note -
FRS™ Pioneer – Fetal bovine serum replacement > https://zurl.co/NtltL
Qkine uniquely animal-free TGF-β1 (Qk010) > https://zurl.co/KZMkZ
PDGF-BB (Qk044) > https://zurl.co/tuxOx
Highly potent FGF-2 (145 aa) > https://zurl.co/vgfXV
GECKO™ – adherence solution > https://zurl.co/Q7D2X
Low endotoxin recombinant vitronectin (Qk120) > https://zurl.co/Y2FLC

15/07/2026

🌟New product

HiDef® ITS is a defined formulation designed for the routine maintenance and low-density attachment of adherent cells under reduced serum conditions.

HiDef® ITS is a combination of insulin (to stimulate glucose uptake), transferrin (to facilitate iron transport), and sodium selenite (a potent antioxidant and common component supplied by serum), previously shown to reduce the amount of FBS needed in the culture of a wide range of cell types, including primary cells, immortalized cell lines, and stem cells.

View and buy on the Qkine website > https://zurl.co/V5DZM

Explore the full range of animal-free Bioscience media supplements on the Qkine website > https://zurl.co/Uwd5K

13/07/2026

🌟New product

HiDef® N-2 is a defined formulation designed for the culture and growth of neurons, neural progenitor cells (NPCs), stem cells, and neuroblastoma (NB) cells, among other cell types, as well as differentiation of embryonic and induced pluripotent stem cells in neural and pancreatic lineages.

N-2 has been historically shown to improve survival and expression of neuronal cells, including neurons in primary culture, and serves as an effective substitute for the N-1 Bottenstein formulation.

View and buy on the Qkine website > https://zurl.co/Aa0lL

Explore the full range of animal-free Bioscience media supplements on the Qkine website > https://zurl.co/Uwd5K

09/07/2026

Interleukin-21 (IL-21) is a pleiotropic, immune-modulatory cytokine that is produced by natural killer (NK) cells and some T cells.

IL-21 has broad immunological functions and can regulate NK cells, macrophages, and dendritic cells, as well as playing a role in promoting B cell and antibody responses.

View and buy online > https://zurl.co/ryrE1

We compare the bioactivity of our cytokines to other supplies to ensure our IL-21 is highly bioactive, view technote > https://zurl.co/84Vvm

Qkine have a wide range of highly bioactive animal origin-free growth factors and cytokines for immune cells and hematopoietic stem cells > https://zurl.co/cLaDb

Address

1 Murdoch House
Cambridge
CB58HW

Telephone

+441223491486

Website

http://www.qkine.com/

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