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Other Disclosures4880CellSource Co.,Ltd.Pharmaceuticals

CellSource and Solaris Bio to jointly develop freeze-drying technology for extracellular vesicles, including exosomes

CellSource and ソラリスバイオ jointly developed and established technology to freeze-dry extracellular vesicles, including exosomes, while maintaining their quality. CellSource has begun providing the technology for certain contract projects, while ソラリスバイオ is preparing for the future general sale of a storage solution.

Worth reading
60In focus
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Direction
Improvement
Direction inferred from the company’s description.
Scale
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Wording
Conditional
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Announced details

Freeze-drying technology for extracellular vesicles, including exosomesStorage solution for freeze-dryingPFC-FD™ELSSA OSFreeStemDesign
Applicable field (uses covered by this announcement)
Regenerative MedicineDrug delivery systemsDiagnostic markers for malignant tumors and other conditionsExosome-related fields
Launch dateCellSource has already begun providing the technology for certain contract projects. ソラリスバイオ is preparing for the future general sale of its storage solution, but the specific launch date has not been disclosed.
Contract Date22 July 2025 (comprehensive business partnership agreement)
What the company reported numerically
Quantitative Effects

Successfully freeze-dried the product while maintaining its quality

Usage history

CellSource has handled more than 130,000 contract processing projects involving cells and other materials (the cumulative period and reference date are not specified in the text)

Relationship between the counterparty and the company
CellSource Co.,Ltd.4880
Relationship with the Company

A joint development relationship under the comprehensive business partnership agreement dated 22 July 2025. The parties jointly developed freeze-drying technology for extracellular vesicles.

Counterpartyソラリスバイオ株式会社

Representative Director and President: Ishikawa Kakusei (石川格靖); location: Keihanna Plaza Lab Building, 1-7 Hikaridai, Seika-cho, Soraku-gun, Kyoto Prefecture; founded in Kyoto in 2023. The company manufactures, sells and conducts research and development on liquid formulations, including culture media for regenerative medicine, and provides contract development services.

Impact on Business Performance

The specific amount and extent of the impact on financial results have not been disclosed

The company does not address Contract Value / Offering price.

Announced details
ItemDetails
Names of Products / Services CoveredFreeze-drying technology for extracellular vesicles, including exosomes, Storage solution for freeze-drying, PFC-FD™, ELSSA OSFree, StemDesign
Counterpartyソラリスバイオ株式会社
Counterparty overviewRepresentative Director and President: Ishikawa Kakusei (石川格靖); location: Keihanna Plaza Lab Building, 1-7 Hikaridai, Seika-cho, Soraku-gun, Kyoto Prefecture; founded in Kyoto in 2023. The company manufactures, sells and conducts research and development on liquid formulations, including culture media for regenerative medicine, and provides contract development services.
Relationship with the CompanyA joint development relationship under the comprehensive business partnership agreement dated 22 July 2025. The parties jointly developed freeze-drying technology for extracellular vesicles.
Contract Date22 July 2025 (comprehensive business partnership agreement)
Launch dateCellSource has already begun providing the technology for certain contract projects. ソラリスバイオ is preparing for the future general sale of its storage solution, but the specific launch date has not been disclosed.
Applicable areaRegenerative Medicine, Drug delivery systems, Diagnostic markers for malignant tumors and other conditions, Exosome-related fields
Quantitative EffectsSuccessfully freeze-dried the product while maintaining its quality
Usage historyCellSource has handled more than 130,000 contract processing projects involving cells and other materials (the cumulative period and reference date are not specified in the text)
Impact on Business PerformanceThe specific amount and extent of the impact on financial results have not been disclosed
Items this document does not state (8)
Contract ValueOffering priceAward/certification nameAwarding / certifying bodyRegistration number and expiry dateLocationLocation scaleSource

These are items the company does not state in this document. We do not leave them blank, nor fill them in from other sources or by inference.

The reasons the company gives

The company's own explanation, not something inferred from the numbers.

Exosomes have traditionally required strict low-temperature control to maintain their quality, making storage and transport difficult. The purpose of this technology is to facilitate the storage and transport of exosomes while preserving their quality and to expand the range of potential applications for exosomes.

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CellSource and Solaris Bio to jointly develop freeze-drying technology for extracellular vesicles, including exosomes | CellSource Co.,Ltd. (4880) timely disclosure | Komori