On June 4, 2021 Sorrento Therapeutics, Inc. (Nasdaq: SRNE, "Sorrento") reported that the Company has entered into an additional collaborative agreement with NextGenNK Competence Center-associated research groups at the Department of Medicine, Huddinge, Karolinska Institutet ("KI") in Stockholm, Sweden, aimed at producing novel cell-based therapeutics using natural killer ("NK") cells derived from induced pluripotent stem cells ("iPSCs") (Press release, Sorrento Therapeutics, JUN 4, 2021, View Source [SID1234583543]). Sorrento and KI are collaborative partners in the Competence Center for the development of next-generation NK cell-based cancer immunotherapies ("NextGenNK") coordinated by KI.

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Under the agreement, Sorrento will provide know-how in the core chimeric antigen receptor ("CAR") and dimeric antigen receptor ("DAR") technologies and support the collaborative effort to develop new CAR-NK and DAR-NK candidates, as well as fund the translational validation of the technologies. Multiple product candidates will be developed and tested in the initial phase of the planned work, with the goal that the candidate products will qualify for further human clinical trials.

The foundational Sorrento research assets critical to this program are novel proprietary CAR and DAR constructs identified through Sorrento’s proprietary G-MAB fully human antibody library and previously validated as determinants of cell-based therapy potency against hematologic and solid tumors.

"It is a privilege to continue and extend our collaborative work with the distinguished KI faculty. We are proud to contribute our technologies to produce new optimized off-the-shelf adoptive NK cell immunotherapies," said Dr. Henry Ji, Chairman and CEO of Sorrento. "Our partnership with KI combines our know-how with the expertise of a world-renowned institution in the field of NK cell therapy. These types of partnerships are essential in advancing medicine and bringing new solutions to cancer patients in need."

KI scientists within NextGenNK will establish iPSC-derived NK-based therapeutic candidates utilizing Sorrento’s constructs and DAR technology. Work within KI has contributed to the development of methodologies that consistently generate robust and potent NK cell lineages following iPSC differentiation. Clinical trials of NK cell-based therapies for treatment of multiple myeloma led by researchers at KI have yielded promising preliminary results with long-lasting remissions. In a very cross-knit collaboration between Sorrento and KI, the team will aim to establish novel allogeneic, off-the-shelf, retargeted NK cell-based therapies.

Utilizing iPSCs enables mass production of off-the-shelf NK cell therapies that leverage Sorrento’s existing manufacturing infrastructure and know-how. Sorrento expects these validated re-engineered NK cell-based therapeutic candidates could potentially become a new generation in off-the-shelf treatments for cancer and infectious diseases. The core research will be performed at Karolinska Institutet with active involvement of the Sorrento R&D team in San Diego.

"The present collaboration brings together key competence from Sorrento and KI in an important area of cancer immunotherapy research. Sorrento’s intellectual contribution to the research at the Competence Center is a critical piece in enabling retargeted off-the-shelf NK cell products," said Evren Alici, Principal Investigator at KI.

"This is an important step in further enabling academic and industrial partnerships in the mission of achieving common goals for advancement of novel cancer immunotherapies," said Hans-Gustaf Ljunggren, Director of the NextGenNK Competence Center.