Corporate Banner
Satellite Banner
Scientific Community
Become a Member | Sign in
Home>News>This Article

SCT to Provide Update on CD47 Program at the 2014 AACR Annual Meeting

Published: Friday, April 04, 2014
Last Updated: Friday, April 04, 2014
Bookmark and Share
Announcing a key difference between SIRPaFc and other CD47-blocking agents.

Stem Cell Therapeutics Corp. has announced that it will be providing an update on its SIRPaFc immune checkpoint inhibitor program, targeting the CD47 protein, at the 105th Annual Meeting of the American Association for Cancer Research.

The meeting will be held April 5-9, 2014 in San Diego, CA. Details of the poster presentation, entitled “Cancer Immunotherapy Targeting CD47: Wild Type SIRPaFc is the Ideal CD47-Blocking Agent to Minimize Unwanted Erythrocyte Binding”, are listed below:

Date: Wednesday April 9, 2014
Time: 8:00 am - 12:00 pm (PT)
Session ID: Immunology 11
Session Title: Immune Checkpoint Inhibition
Abstract #: 5011
Presenter: Dr. Robert Uger, Chief Scientific Officer
Location: Hall A-E, Poster Section 10, San Diego Convention Center

The company will present data demonstrating that its wild type SIRPaFc fusion protein, which binds effectively to CD47 with low nanomolar affinity, binds very poorly to human red blood cells (RBCs) compared to both commercial anti-CD47 monoclonal antibodies (mAbs) and proprietary CD47-blocking agents.

This striking difference in binding was not seen with other cell types, including acute myeloid leukemia (AML) tumor cells, suggesting it is an RBC-specific phenomenon. In addition, the lack of significant SIRPaFc binding to erythrocytes is unique to humans, since SIRPaFc bound strongly to mouse and non-human primate RBCs.

Overall, the data suggest that a wild type SIRPaFc fusion protein may be the ideal CD47-blocking agent to reduce the potential antigen sink effect caused by RBCs and to minimize hematological toxicity in patients, while maintaining potent anti-tumor effects.

“Our results are consistent with independently published reports documenting differences in binding between CD47-specific antibodies and the natural CD47 ligand, SIRPa. While the mechanism behind this observation is still under investigation, our preliminary data suggest that it may relate to unique structural features of CD47 in the human RBC membrane,” commented Dr. Uger.

Dr. Uger continued, “Importantly, our results indicate that our SIRPaFc protein has a preferable RBC binding profile compared to competing approaches, which we believe may predict a lower risk of toxicity in patients and a more favorable pharmacokinetic profile.”

Further Information
Access to this exclusive content is for Technology Networks Premium members only.

Join Technology Networks Premium for free access to:

  • Exclusive articles
  • Presentations from international conferences
  • Over 2,800+ scientific posters on ePosters
  • More than 4,000+ scientific videos on LabTube
  • 35 community eNewsletters

Sign In

Forgotten your details? Click Here
If you are not a member you can join here

*Please note: By logging into you agree to accept the use of cookies. To find out more about the cookies we use and how to delete them, see our privacy policy.

Related Content

SCT Changes its Name to Trillium Therapeutics Inc.
Company has filed articles of amalgamation to merge with Trillium Therapeutics.
Tuesday, June 03, 2014
Stem Cell Therapeutics Completes $33 Million Private Placement
Financing proceeds used to advance the Company’s CD47 cancer stem cell program.
Friday, December 20, 2013
Stem Cell Therapeutics Receives U.S. Orphan Drug Designation
Company receives drug designation for the use of tigecycline to treat AML.
Friday, November 01, 2013
SCT Acquires an Exclusive Option to License Prostate Cancer Stem Cell Assets
Collaboration with internationally renowned prostate cancer research group.
Monday, August 12, 2013
Stem Cell Therapeutics Acquires an Exclusive Option to License Prostate Cancer Stem Cell Assets
Collaboration with internationally renowned prostate cancer research group.
Monday, August 12, 2013
SCT Licenses Exclusive Rights to Clinical Cancer Stem Cell Program
Corporate refocusing mission completed.
Friday, April 19, 2013
SCT Announces Agreement with Trillium for Merger
Continuing Stem Cell Therapeutics' commitment to expansion.
Wednesday, February 06, 2013
Stem Cell Therapeutics Announces Agreement with UHN and MaRS Innovation
Building on the continued strength of Canadian stem cell research.
Thursday, November 08, 2012
Scientific News
New Class of RNA Tumor Suppressors Identified
Two short, “housekeeping” RNA molecules block cancer growth by binding to an important cancer-associated protein called KRAS. More than a quarter of all human cancers are missing these RNAs.
Mathematical Model Forecasts the Path of Breast Cancer
Chances of survival depend on which organs breast cancer tumors colonize first.
Exploring the Causes of Cancer
Queen's research to understand the regulation of a cell surface protein involved in cancer.
Nanocarriers May Carry New Hope for Brain Cancer Therapy
Berkeley lab researchers develop nanoparticles that can carry therapeutics across the brain blood barrier.
RNA-Based Drugs Give More Control Over Gene Editing
CRISPR/Cas9 gene editing technique can be transiently activated and inactivated using RNA-based drugs, giving researchers more precise control in correcting and inactivating genes.
University of Glasgow Researchers Make An Impact in 60 Seconds
Early-career researchers were invited to submit an engaging, dynamic and compelling 60 second video illuminating an aspect of their research.
Metabolic Profiles Distinguish Early Stage Ovarian Cancer with Unprecedented Accuracy
Studying blood serum compounds of different molecular weights has led scientists to a set of biomarkers that may enable development of a highly accurate screening test for early-stage ovarian cancer.
Dead Bacteria to Kill Colorectal Cancer
Scientists from Nanyang Technological University (NTU Singapore) have successfully used dead bacteria to kill colorectal cancer cells.
CRISPR-Cas9 Gene Editing: Check Three Times, Cut Once
Two new studies from UC Berkeley should give scientists who use CRISPR-Cas9 for genome engineering greater confidence that they won’t inadvertently edit the wrong DNA.
Genetically Engineering Algae to Kill Cancer Cells
New interdisciplinary research has revealed the frontline role tiny algae could play in the battle against cancer, through the innovative use of nanotechnology.

Skyscraper Banner
Go to LabTube
Go to eposters
Access to the latest scientific news
Exclusive articles
Upload and share your posters on ePosters
Latest presentations and webinars
View a library of 1,800+ scientific and medical posters
2,800+ scientific and medical posters
A library of 2,500+ scientific videos on LabTube
4,000+ scientific videos