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Stable Cell Line Development Service for Biopharmaceutical Production

As targeted therapies using biopharmaceuticals are becoming more critical, manufacturing processes that speed up their production efficiently, robustly, and cost-effectively gain more importance in order to support patients globally.
Chitose laboratory’s mission is to create the next-generation biopharmaceutical manufacturing platform centering on our proprietary and uniquely high-performance CHO cells (known as CHO-MK cells), which is reliably applicable to accelerate the development of biopharmaceuticals, reduce the manufacturing costs and contribute to global health care.

High Performance

IgG production in fed-batch bioreactor image
IgG production in fed-batch bioreactor
  • Large amount of antibody production
    (10 g/L) in 5 days

CHO-MK Host Cell Bank

Host Cell Bank image
  • Applicable for biopharmaceutical production
  • Conditioned to complete serum-free suspension culture
  • Passed viral safety tests
  • Completed Host Cell Bank testing package (CoA)

Benefits of CS CHO™️ Vector

CS CHO™️ Vector image
  • Chitose Laboratory’s original expression vector system
  • Signal nucleotide sequences for high expression utility
  • Expert in the design of nucleotide sequences for high expression in CHO-MK cells

CLD Platform

CLD Platform chart
  • CHO-MK Cell Line and CS CHO™ expression vector system
  • FCM-based enrichment of highly producing stable pools
  • High-fidelity cloning by single-cell sorting
  • Clonality assurance by high-resolution imaging
  • Early process development using bioreactor
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If you have any inquiries about our CLD service and technology, please contact us here.

Company name

Chitose Laboratory Corp.


KSP R&D C432, 3-2-1, Sakado, Takatsu-ku, Kawasaki, Kanagawa 213-0012, Japan


November 2002

Number of employees

Approx.150 (including executives and part-timers, more than 360 in the entire group) as of 1st April, 2024

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