(19)

(11)

EP 4 562 122 A2

(12)

(88) Date of publication A3: 11.04.2024 (43) Date of publication: 04.06.2025 Bulletin 2025/23 (21) Application number: 23768597.9 (22) Date of filing: 31.08.2023

(51) International Patent Classification (IPC):  C12M 1/26(2006.01) C12M 1/00(2006.01) (52) Cooperative Patent Classification (CPC): C12M 33/00; C12M 29/00 (86) International application number: PCT/GB2023/052262 (87) International publication number: WO 2024/047361 (07.03.2024 Gazette 2024/10)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: KH MA MD TN (30) Priority: 31.08.2022 GB 202212684 31.08.2022 GB 202212685 26.05.2023 GB 202307961 26.05.2023 GB 202307962 26.05.2023 GB 202307963 (71) Applicant: Cellular Origins Limited Melbourn, SG8 6HQ (GB)

(72) Inventors: STRANGE, Dan Melbourn Hertfordshire SG8 6HQ (GB) STEENSON, Leo Melbourn Hertfordshire SG8 6HQ (GB) ROBERTS, Ryan Melbourn Hertfordshire SG8 6HQ (GB) CROSSLEY, Peter Melbourn Hertfordshire SG8 6HQ (GB) CRISP, Paul Melbourn Hertfordshire SG8 6HQ (GB) STONE, Ed Melbourn Hertfordshire SG8 6HQ (GB) DEEKS, William Melbourn Hertfordshire SG8 6HQ (GB) (74) Representative: Gill Jennings & Every LLP  The Broadgate Tower 20 Primrose Street London EC2A 2ES London EC2A 2ES (GB)