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Updated: Jun 25, 2026

Evaluating the Effectiveness of Cancer Drug Sensitization In Vitro and In Vivo
Published on: February 6, 2015
Molecular targets for cancer chemoprevention
William N William1, John V Heymach, Edward S Kim
1Department of Thoracic/Head and Neck Medical Oncology, The University of Texas M. D. Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, Texas 77030, USA.
Abstract:
Vaccines targeting infections with hepatitis B virus, a risk factor for hepatocellular cancer, and human papillomavirus, a risk factor for cervical cancer, are considered major clinical cancer chemoprevention successes. Molecularly targeted agents can prevent breast cancer (raloxifene and tamoxifen), colorectal adenomas (celecoxib), and prostate cancer (finasteride). Nevertheless, the broad translation of chemoprevention to the clinic is not yet a reality. Continuing research of molecular targets promises to expand the reach of chemoprevention and to personalize it as well.
Insights
Cancer chemoprevention successes include vaccines against hepatitis B virus and human papillomavirus. Further research into molecular targets aims to expand and personalize cancer prevention strategies for broader clinical application.
Area of Science:
- Oncology
- Preventive Medicine
- Molecular Biology
Background:
- Hepatitis B virus (HBV) and human papillomavirus (HPV) infections are risk factors for hepatocellular and cervical cancers, respectively.
- Vaccines targeting HBV and HPV represent significant achievements in clinical cancer chemoprevention.
- Molecularly targeted agents have demonstrated potential in preventing specific cancers like breast, colorectal, and prostate cancer.
Purpose of the Study:
- To review the current state of clinical cancer chemoprevention.
- To highlight successes and limitations in translating chemoprevention strategies to clinical practice.
- To emphasize the future potential of molecular targets in expanding and personalizing cancer prevention.
Main Methods:
- Literature review of established cancer chemoprevention strategies.
- Analysis of molecularly targeted agents used in cancer prevention.
- Discussion of the challenges and future directions in clinical chemoprevention research.
Main Results:
- Vaccines for HBV and HPV are recognized as major clinical cancer chemoprevention successes.
- Specific molecularly targeted agents (raloxifene, tamoxifen, celecoxib, finasteride) show efficacy in preventing certain cancers or pre-cancerous conditions.
- Broad clinical translation of chemoprevention remains a challenge, despite demonstrated successes.
Conclusions:
- Cancer chemoprevention has achieved notable successes, particularly with vaccines against viral oncogenesis.
- Molecularly targeted agents offer promising avenues for preventing various cancers.
- Continued research into molecular targets is crucial for expanding the scope and personalizing cancer chemoprevention for wider clinical adoption.
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