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BellBrook Labs Receives NIH Funding for Novel Approach to Stimulating Antitumor Immunity

by Bellbrook Labs / Tuesday, 09 March 2021 / Published in Company, News
TREX1 Press Release Graphic

The National Cancer Institute (NCI) recently awarded BellBrook Labs a $300,000 Phase I Small Business Innovative Research (SBIR) grant to develop tools for discovering small-molecule antagonists of TREX1, a checkpoint at the top of the critical immunostimulatory STING pathway.

Madison, WI – March 2021 – BellBrook Labs has been awarded a $300,000 Phase I Small Business Innovative Research (SBIR) grant to develop and validate HTS assays for the discovery of small-molecule antagonists of TREX1.   

Immunotherapy approaches such as immune checkpoint blockade are transforming oncology.  However, many patients do not respond to existing agents, and new therapeutic strategies for eliciting immune responses to tumors are badly needed.  It has recently become clear that activation of the stimulator of interferon (IFN) genes (STING) pathway is a critical step for initiating an antitumor T cell response in the tumor microenvironment (TME).  TREX1 acts as a checkpoint on tumor cell immunity by preventing activation of the STING pathway in tumor cells. Upregulation of TREX1 by radiotherapy and chemotherapy interferes with their in situ vaccination effects.  Multiple lines of evidence indicate that TREX1 antagonists could represent a new class of immune checkpoint blockers with broad and fundamental impact on cancer treatment regimens.

To enable the discovery of small molecule TREX1 antagonists, BellBrook will leverage its proprietary Transcreener HTS Assay platform to develop and validate a robust, quantitative high throughput TREX1 enzymatic assay as a critical tool for screening and lead optimization.  They will also validate a virtual screening approach for TREX1 in collaboration with SilcsBio (Baltimore, MD), a leading-edge computer-aided drug design company.  These milestones will establish technical feasibility for a robust TREX1 lead discovery program in Phase II.

About BellBrook Labs:

BellBrook Labs is dedicated to accelerating drug discovery and biological research by providing innovative high throughput screening solutions. BellBrook’s core technology Transcreener is a universal, homogenous biochemical assay platform based on detection of nucleotides that makes it easy to screen thousands of different enzymes. These include validated targets like kinases, as well as emerging targets like ATPases, GTPases, methyltransferases, and cGAS. Detection reagents and services from BellBrook Labs help researchers progress toward more effective therapies for cancer and other debilitating diseases.

Tagged under: TREX1

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