Vivian Liu plans to resign as a director of Cesca Therapeutics Inc., effective upon the expiration of her term June 22.

Liu will continue to serve as the COO and corporate secretary for Cesca and as a director and executive officer of the company's majority-owned ThermoGenesis Corp. subsidiary.

As result of Liu's resignation, the company's board is expected to vote on decreasing the board's size to five members.

Liu's decision to resign did not involve any disagreements with the company, the management, or the board on any matter relating to operations, policies or practices, according to Cesca Therapeutics.

Rancho Cordova, Calif.-based Cesca Therapeutics develops, commercializes and markets a range of automated technologies and products for cell-based therapeutics.