- Data on novel pro-apoptotic agent presented at the 100th Annual Meeting of the American Association for Cancer Research -
- University of Pennsylvania data on chemotherapy resistance patterns in neuroblastoma cell lines, highlighting AT-101's inhibition of Mcl-1, also presented -
MALVERN, Pa., April 21 /PRNewswire/ -- Ascenta Therapeutics announced today that the results of preclinical studies of its orally-active, small molecule, pro-apoptotic agent, AT-406, have been presented at the 100th Annual Meeting of the American Association for Cancer Research (AACR), in Denver, Colorado (Abstract # 1917).
The studies demonstrated that AT-406 was active as a single agent in vitro in a number of cell lines, including breast cancer, lung cancer, pancreatic cancer, prostate cancer, and bladder cancer, and in several mouse xenograft cancer models. AT-406 also showed synergistic or additive effects when used together with tyrosine kinase inhibitors or chemotherapy in vitro in those cell lines.
"AT-406 is the second agent in our development pipeline to demonstrate broad anti-cancer activity in pre-clinical models, including synergy with other agents, by targeting a specific apoptotic pathway," said Mel Sorensen, MD, CEO of Ascenta Therapeutics. "On the basis of these encouraging data, we plan to submit an Investigational New Drug (IND) application to the U.S. Food and Drug Administration to allow us to begin human clinical trials with AT-406 later this year."
AT-406 is an orally-active, small molecule drug designed to promote programmed cell death (apoptosis) in tumor cells by blocking the activity of at least three "inhibitors of apoptosis proteins" or IAPs (including XIAP, c-IAP1, and c-IAP2) to create conditions in which apoptosis can proceed. As such, AT-406 is considered a multi-IAP antagonist. IAPs are key components of the complex cascade of protein signaling that activates enzymes called caspases to initiate breakdown of the cancer cell. AT-406 is thought to mimic the activity of Smac (second mitochondria-derived activator of caspases) by binding to XIAP and preventing it from inhibiting caspase activation. Upon binding, AT-406 induces rapid degradation of cIAP-1/2 proteins and promotes apoptosis through activation of caspase-8 and the death-receptor complex.
AT-406 is in late-stage preclinical development and has demonstrated strong single-agent antitumor activity in multiple xenograft models of human cancer, including breast cancer, pancreatic cancer, prostate cancer, and lung cancer. AT-406 has also been shown to work synergistically with conventional chemotherapeutic and targeted agents (such as tyrosine kinase inhibitors) in preclinical tumor models.
Other Research Including AT-101
Ascenta Therapeutics also announced that researchers from the
About Ascenta Therapeutics
Ascenta Therapeutics, Inc. is a privately-held, clinical-stage biopharmaceutical company that discovers and develops new medicines for the treatment of cancer. The company is headquartered in Malvern, Pennsylvania, and has a preclinical research facility in Shanghai, China. Its technology, licensed from both the National Institutes of Health and the laboratory of Dr. Shaomeng Wang at the
For additional information on Ascenta Therapeutics, please visit the company's website at www.ascenta.com
|SOURCE Ascenta Therapeutics, Inc.|
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