Fate Therapeutics Unveils Preclinical Findings of Newly-Identified Small Molecule Modulator Combination for Ex Vivo Programming of Mobilized Peripheral Blood
"While hematopoietic stem cell transplantation has proven curative potential, a significant need remains to reduce the morbidity and mortality associated with the procedure, including the risk of T-cell mediated complications such as viral infections, graft vs. host disease and delayed immune reconstitution," said
The data are being presented today during a poster presentation entitled "Ex Vivo Modulation of Mobilized Peripheral Blood: Characterization of HSC and T-Cell Responses to Small Molecule Modulation," and expand and build upon the clinical development of the Company's lead product candidate, PROHEMA®. PROHEMA, an ex vivo programmed hematopoietic cellular therapeutic which uses FT1050 (16,16 dimethyl prostaglandin E2 , or dmPGE2) to pharmacologically modulate umbilical cord blood, is currently being investigated in a Phase 2 clinical trial in adult patients and a Phase 1b clinical trial in pediatric patients with hematologic malignancies undergoing umbilical cord blood transplantation. As part of its continuing evaluation of the modulatory effects of FT1050 on hematopoietic cells,
Gene expression analysis of CD34+ cells sourced from mobilized peripheral blood co-modulated with FT1050 and FT4145 showed a ~60-fold increase in the expression of the key homing receptor CXCR4, and ex vivo programmed CD34+ cells demonstrated a statistically significant increase in engraftment in preclinical models as compared to unmodulated cells. Additionally, genome-wide expression analysis of the T-cell compartment of mobilized peripheral blood, including CD8+, CD4+ and regulatory T-cells, revealed the induction of genes involved in cell cycle (e.g., CCND1, CCNE1), immune tolerance (e.g., DUSP5, FLT1) and anti-viral properties (e.g., CD55, EFNB2). Additionally, following a five-day culture in the presence of activating beads, T-cells co-modulated with FT1050 and FT4145 were found to have reduced proliferation rates and decreased cell-surface protein expression of ICOS, a key T-cell activation marker, relative to unmodulated cells.
Collectively, these preclinical findings point to the therapeutic potential for ex vivo programmed hematopoietic cells to mitigate T-cell mediated complications and improve outcomes in patients undergoing hematopoietic stem cell transplant with mobilized peripheral blood as a cell source. Mobilized peripheral blood is the predominant cell source used in hematopoietic stem cell (HSC) transplantation.
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Forward-Looking Statements
This release contains "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995, including statements regarding the therapeutic potential of PROHEMA® and ex vivo programmed mobilized peripheral blood, the Company's plans with respect to PROHEMA and other product candidates, and anticipated research and development activities relating to the ex vivo programming of hematopoietic cells, including T-cells. These and any other forward-looking statements in this release are based on management's current expectations of future events and are subject to a number of risks and uncertainties that could cause actual results to differ materially and adversely from those set forth in or implied by such forward-looking statements. These risks and uncertainties include, but are not limited to, the risks that the results of PROHEMA
observed in prior preclinical and clinical development may not be replicated or may cause unanticipated adverse effects in current or subsequent clinical trials of PROHEMA, the risk of cessation or delay of any clinical development activities for a variety of reasons (including additional information that may be requested or additional obligations that may be imposed by the
CONTACT:Source:Renee Leck , Stern Investor Relations, Inc. 212.362.1200, renee@sternir.com
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