Collection of Blood, Bone Marrow, Tumor or Tissue Samples

This study will collect biological samples-blood, bone marrow, tumor or other tissue samples-for use in cancer-related research. The specimens will be used for various tests of drug resistance, blood vessel formation, cancer-causing proteins and immune functions. The purpose is to identify steps in the cancer development process that may serve as targets for treatment and to test various therapies for current and future cancer treatment clinical trials. Individuals 18 years of age and older with cancer or a pre-cancerous condition, such as colon polyps or cervical dysplasia, are eligible for this study, as are patients at high risk for cancer. In addition, patients who do not have cancer but require surgery, biopsy or other procedure for another medical reason may be included as normal specimen donors. Participants will have about 40 milliliters (3 tablespoons) of blood drawn upon entering the study and additional 40-ml samples drawn periodically during the course of treatment. No more than 120 ml of blood will be drawn over a 12-month period. Some patients may require a surgical procedure or biopsy (removal of tumor tissue) for medical reasons or as part of their enrollment in a research treatment study. In such cases, a portion of the specimens collected during those procedures will be used for the research studies in this protocol.