Articles

AACR 2014 conference preview: Progressing toward a cure

Rapid advances in epigenomics, immunology and cancer metabolism create an atmosphere of optimism at this year’s AACR annual meeting
Written byLloyd Dunlap
| 11 min read

105th American Association for Cancer Research (AACR) Annual Meeting

San Diego Convention Center

April 5-9, 2014

SAN DIEGO—The theme of the 2014 annual meeting of the American Association for Cancer Research (AACR) is “Harnessing Breakthroughs, Targeting Cures,” and when you talk to Dr. Scott W. Lowe, this year’s AACR program committee chairperson, it is easy—and not a misconstruction—to get the impression that the end is near. That finally, more than 40 years after President Richard Nixon declared his “war on cancer,” we are close to achieving victory—a step at a time, certainly, but now with a sense of inevitability. As AACR President Dr. Charles L. Sawyers puts it, “Until recently, there might be a significant advance in cancer research every few years; now it’s every few months—or less.”

This startling increase in the frequency of notable advances is primarily due to new technology for examining cancer genomes, Sawyers believes. “We are discovering new mutations in types of genes we would have never imagined a few years ago,” he notes. “For example, mutations in genes that block control of RNA splicing.” The drug development industry is, with increasing effectiveness, targeting cancer-causing genes, he says, and deploying new chemical compounds and antibodies that target these genes.

Although the ‘war’ continues on innumerable fronts, from basic research to translational research to clinical research, there are three areas of advancement that will be center stage at AACR 2014: epigenetics, immunology and cancer metabolism. “

We know what happens to DNA in cancer,” Lowe says, “Now epigenetics—the non-genetic control of gene expression—is filling gaps in our knowledge and hints that the chromatin, the combination or complex of DNA and proteins that make up the contents of the nucleus of a cell, can be targeted therapeutically.”

Cancer immunology has “exploded,” Lowe states. “There has been the hope for many years that the immune system could be harnessed to fight cancer,” he observes. “Melanoma is one example. Immunological approaches promise to act more broadly than vaccines,” he notes. Chimeric antigen receptors (CARs) are a separate but related approach to enhancing the immune response. These receptors can be used to graft a monoclonal antibody onto T cells which are then removed from a patient and modified to express receptors for that patient’s specific tumor type. The T cells are then reintroduced into the patient and recognize and kill the cancer cells.

Changes that occur in cancer metabolism have been widely ignored, according to Lowe, but may be “intimately and directly involved” in disease progression in brain cancer, for example. He cites isocitrate dehydrogenase (IDH1 and 2) as an enzyme that is mutated in cancer and might be a target for therapy.

Lowe notes that genomics and next-generation sequencing (NGS) have been hot topics for a decade. “Now NGS has allowed us to sequence cancer cells and we’ve discovered that cancer is heterogeneous even within a single person’s tumor.” This circumstance, he suggests, is important in how cancers evolve and metastasize, making a strong case for therapies that use a combination of drugs.

What it means for AACR 2014

The combination drug approach will be a major topic of Sawyers’ presidential address. “Drug resistance has long been problematic in cancer therapy,” he tells DDNews, “and this defines the need for us to more aggressively utilize combinations of drugs that can overcome this resistance through differing mechanisms of actions and targets. To date, the process of developing single agents has been a deterrent to developing more effective combinations.”

To continue reading this article, subscribe for FREE toDrug Discovery News Logo

Subscribe today to keep up to date with the latest advancements and discoveries in drug development achieved by scientists in pharma, biotech, non-profit, academic, clinical, and government labs.

Add Drug Discovery News as a preferred source on Google

Add Drug Discovery News as a preferred Google source to see more of our trusted coverage.

About the Author

Here are some related topics that may interest you:

Subscribe to Newsletter

Subscribe to our eNewsletters

Stay connected with all of the latest from Drug Discovery News.

Subscribe

Sponsored

3D illustration of a single cell surrounded by small molecular particles in a red biological environment.
Measuring mRNA and protein together at single cell resolution can uncover tumor-specific signaling activity and immune features.
Illustration of an antibody intertwined with a DNA double helix.
Discover how CRISPR and single-cell RNA sequencing can connect disease-associated variants to regulatory elements, genes, and pathways.
Digital illustration of the human digestive system highlighting the liver, stomach, and intestines.
Explore how human gut-liver models can improve the translation of preclinical findings into clinical pharmacokinetic predictions.