# CellSeed

Source: https://onco.cc/companies/cellseed/  
OnCo record `cellseed` (Company). Data CC BY-NC 4.0, attribute "Data from OnCo (onco.cc)"; commercial use needs a licence.

## TL;DR

CellSeed is a Tokyo regenerative-medicine company whose cell sheets, grown on temperature-responsive dishes, are applied to the oesophagus after endoscopic cancer removal to prevent scarring and narrowing.

## Summary

CellSeed Inc., founded in 2001 in Tokyo and listed there, commercialises cell sheet engineering from Tokyo Women's Medical University: sheets of a patient's own cells grown on temperature-responsive culture surfaces and lifted off intact. Its oesophageal epithelial cell sheets are applied to the ulcer left after endoscopic submucosal dissection of early oesophageal cancer to prevent stricture, and the company leads the Japanese phase 3 trials registered on ClinicalTrials.gov.

## Fields

- Kind: Company
- Last checked: 2026-09-11
- Also known as: CellSeed Inc.; セルシード
- Tags: ctgov-sponsor
- HQ: Tokyo
- Type: cell-therapy
- Website: http://www.cellseed.com

## Sources

- Official website: http://www.cellseed.com
- ClinicalTrials.gov: trials led by CellSeed Inc.: https://clinicaltrials.gov/search?lead=CellSeed%20Inc.
- Wikidata: https://www.wikidata.org/wiki/Q11314549

## Connected records

- cancers: [Oesophageal cancer](https://onco.cc/cancers/esophageal/)
- technologies: [Endoscopic resection (EMR / ESD)](https://onco.cc/technologies/endoscopic-resection/)
- terms: [Clinical trial](https://onco.cc/terms/clinical-trial/), [Pivotal (registrational) trial](https://onco.cc/terms/pivotal-trial/)

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JSON: https://onco.cc/api/v1/entities/cellseed.json