Basic Cancer Research

SRI Biosciences is a leading provider of preclinical development services for oncology treatments. SRI's Center for Cancer Research partners with government agencies and pharmaceutical companies to

  • Identify molecular targets

  • Discover new drug candidates

  • Develop models for evaluating the efficacy of drugs

  • Elucidate drug mechanisms of action

  • Optimize promising drug candidates

  • Develop cost-effective strategies for synthesis

For the National Cancer Institute (NCI)—a client for more than 50 years—SRI provides preclinical cancer research, which includes evaluating the preclinical safety and pharmacokinetics of chemotherapeutics and chemopreventive agents. SRI also provides genetic toxicology testing for NCI's chemoprevention program, synthesizes compounds for NCI's carcinogen repository, and manufactures clinical trial materials.

SRI also operates one of seven National Cancer Institute (NCI) funded Tumor Glycome Laboratories. These laboratories are the principal component of the trans-NIH Alliance of Glycobiologists for Detection of Cancer and Cancer Risk, which is searching for glycan-based biomarkers for breast, ovarian, lung, prostate, and pancreatic cancers and melanoma. Learn more about SRI's Tumor Glycome Laboratory.

More than 30 years of research has led to numerous SRI drugs on the market or ready for licensing, including:

  • Targretin® (bexarotene), a retinoid receptor ligand marketed by Eisai

  • Tirapazamine, a hypoxic tissue-selective cytotoxin

  • TAS-108, a selective estrogen receptor modulator licensed to Taiho Pharmaceutical

  • PDX (pralatrexate), an antimetabolite licensed to Allos Therapeutics

  • SR16157, a dual estrone sulfatase / ER antagonist for breast cancer treatment

Learn more about SRI's research and services in these areas:

Projects

scientist working at a computer

SRI has developed a promising new treatment for this cancer of the immune system that affects plasma cells in bone marrow.

cigarette being snapped in half

SRI is analyzing the genetics of smoking and related characteristics, using data from a large-scale National Cancer Institute study on smoking cessation.

Products + Solutions

researcher working in lab

As an alternative to AIs, SRI has developed an estrogen inhibitor called SR16157. This rationally designed drug achieves more complete estrogen suppression by inhibiting estrogen in two ways.

researchers in lab coats working at a lab table

SRI researchers have developed a novel steroidal compound, SR16388, which very selectively binds to and inhibits ERRalpha. This drug also regulates tumor energy metabolism by strongly inhibiting the protein HIF-1alpha, which promotes tumor cell survival in low-oxygen conditions.

two researchers in lab coats working at equipment

As a safer and more effective alternative to currently available drugs, SRI researchers have developed TAS-108, an oral anti-estrogen drug for the treatment of advanced breast cancer.

Press Releases

The U.S. Food & Drug Administration has announced the approval of pralatrexate for the treatment of relapsed or refractory peripheral T-cell lymphoma (PTCL).

Lidia Sambucetti, Ph.D., has joined SRI International's Biosciences Division as senior director of cancer research, where she will direct cancer drug discovery efforts, collaborating with scientific and business development colleagues.

SRI International executives will be on hand at the 2007 meeting of the American Society of Clinical Oncology (ASCO) to discuss potential partnerships for further development of therapeutics against cancer.

Hands holding puzzle pieces

In a step toward understanding possible genetic differences in smoking behaviors, a team of researchers co-led by SRI International has identified a genetic marker associated with smoking quantity in people of African ancestry.

SRI International announced a personalized medicine program to develop biomarkers for cancer, part of a multi-year collaboration with Pentax Corporation. The goal is to develop medical diagnostic tools for therapeutic intervention in cancer treatment.

chemotherapy research

SRI International, an independent nonprofit research and development organization, announced today that it is collaborating with PhenoMatriX (PMX), a biotechnology company, on the development of platin-based chemotherapies.

SRI and Telik have signed a license agreement for SRI to conduct preclinical studies of a Telik drug candidate for the treatment of multiple sclerosis and other autoimmune and inflammatory diseases. The licensing agreement involves study of C243, a compound that prevents leukocyte infiltration.

Based on its track record of cancer drug discovery and development, SRI was chosen to lead three of the CBC's research and development centers: Comprehensive Chemical Biology Screening, Chemical Diversity, and Specialized Applications.

October 13, 2009—SRI International, an independent, nonprofit research and development organization, announced today that it has been awarded a $1.55M U.S. Department of Defense/Prostate Cancer Research Program (DoD/PCRP) grant.

SRI In the News

Cancer Research Moves Forward

This article reports that in the last year SRI International started to study the epigenetic changes in cancer stem cells, which give rise to tumors. Lidia Sambucetti, Ph.D., senior director of the Center for Cancer Research, Biosciences Division, at SRI International, is quoted in the article.

Once-a-Day Tablet TAS-108 for Resistant Breast Cancer on Way

This article reports that TAS-108, a new one-a-day tablet to treat drug resistant breast cancer, will soon go on pivotal studies on patients. TAS-108 is developed by SRI International. The drug is touted to be more effective and safer than the currently used breast cancer agents.