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Doctor insights on: Gene Therapy For Cancer Treatment

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What is radiation therapy treatment for colon cancer?

What is radiation therapy treatment for colon cancer?

Energy beams: For certain types of colorectal cancer, energy beams are focused in the cancerous area. These beams are designed to kill cancer cells and decrease the chance of the tumor growing back. Depending on the situation, radiation can be used either before an operation or after an operation. ...Read more

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Dr. Barry Rosen
4,457 doctors shared insights

Cancer (Definition)

Cancer is a group of diseases that is characterized by uncontrolled cell growth leading to invasion of surrounding tissues that spread to other parts of the body. Cancer can begin anywhere in the body and is usually related to one or more genetic mutations that allow normal cells to become malignant by interfering with internal cellular control mechanisms, such as programmed cell death or by preventing ...Read more


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Is photodynamic therapy an effective treatment for lung cancer?

Is photodynamic therapy an effective treatment for lung cancer?

Photodynamic therapy may play a limited role in lung cancer treatment — generally complementing, rather than replacing, other forms of treatment: Photodynamic therapy may be an option for treating superficial non-small cell lung cancers that haven't spread beyond the lungs and those that are located in areas easily reached with the tools used during the treatment. Photodynamic therapy begins with the injection of a light-sensitive medication into a vein. One to three days later, the doctor shines light of a certain wavelength onto the tumor from inside the body — typically using a thin, lighted tube called a bronchoscope, which is passed through the mouth into the lungs. The light destroys the cells that have absorbed the light-sensitive medication. After photodynamic therapy, your whole body is sensitive to light. Generally you need to avoid any exposure to bright light, including the sun, for up to eight weeks after treatment. Photodynamic therapy isn't effective for cancer that has spread beyond the lung or tumors that can't be reached by the bronchoscope. ...Read more

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How effective is radiation therapy for treating colon cancer?

How effective is radiation therapy for treating colon cancer?

Partially effective: The best approach for colon cancer is resection. If lesion is large such as one in the rectosigmoid, then RT plus chemo can be employed to reduce the lesion for resection. While the end effect minimizes local recurrence, it does not alter overall survival. ...Read more

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How effective is neoadjuvant therapy for treating colon cancer?

How effective is neoadjuvant therapy for treating colon cancer?

Partially: Chemotherapy in all of its forms is only partially helpful in improving the survival of colon cancer. When there is an effective neoadjuvant response the remaining lesion can be successfully resected. complete surgical extirpation is the needed result. As immunochemo becomes more effective then the combination with surgery will even produce better results. ...Read more

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How effective is radiation therapy for treating lung cancer?

Depends: Radiation is one method of treating lung cancer, and is effective if the lesion is small, and peripherally located. Once the lesion is treated, a scar will remain. This needs to be followed, since complete clearance can only be determined by surgical resection. ...Read more

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How effective is radiation therapy for treating breast cancer?

How effective is radiation therapy for treating breast cancer?

Fairly effective: Radiation plays an important role in treating breast cancer. In the neoadjuvant setting it can reduce the size of a relatively large lesion making surgery more effective. It can be used to treat micro disease in axilla and after lumpectomy can be used to enhance survival and reduce local recurrence. In metastatic bone disease it can control in not eliminate disease. ...Read more

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What is antibody therapy for cancer?

What is antibody therapy for cancer?

Targeted Rx: Some tumor cells have markers on their surface and are susceptible to damage by antibodies directed at that marker(s). In some lymphomas antibodies directed at markers present on normal cells are also effective. Usually these are monoclonal antibodies that have been specifically designed for use in humans. ...Read more

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Which chemo therapy is most effective for KRAS mutant metastic colon cancer ?

Which chemo therapy is most effective for KRAS mutant metastic colon cancer ?

Same drugs as other: Same chemotherapy drugs are used for treating both types of colon cancer. The only difference is lack of benefit from EGFR inhibitors(Cetuximab and Panitumumab). Avastin (bevacizumab) also works in both types. I trust that you know there are 3 chemo drugs that are widely used(5FU or Capecitabine, Irinotecan and Oxaliplatin) ...Read more

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How effective is radiation therapy for breast cancer?

How effective is radiation therapy for breast cancer?

Very effective.: Radiation therapy (rt) is never a primary treatment for breast cancer, but rather a supplement to surgery for the local treatment of breast cancer. Rt is mandatory following breast conserving surgery: local recurrence rates are decreased from >25% to <5% with rt. Rt is also used after mastectomy for patients that are at high risk for local recurrence. ...Read more

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Is the gene therapy for aids?

Is the gene therapy for aids?

Gene therapy for HIV: Gene therapy for HIV could be coming. A company called sangamo pharm. Has developed a gene modification tool called a zinc-finger endonuclease that can alter on of the lymphocyte genes that allows HIV to enter the cells; called a chemokine receptor. They are involved in clinical studies at this time that look promising. ...Read more

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What chemotherapy treatments exists for patients with esophageal cancer?

What chemotherapy treatments exists for patients with esophageal cancer?

Many: It depends on the type of esophageal cancer and the stage. Cisplatin plus 5-fu is a common regimen, and it is sometimes given with radiation. Other types of chemo being studied include taxol, gemciteabine, irinotecan, and xeloda (capecitabine). A good website for cancer information is www.Cancer.Gov, the national cancer institute website. Good luck! ...Read more

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How effective is avastin (bevacizumab) as targeted therapy for the metastatic colorectal cancer?

See below: It is not a curall for colon cancer but is effective therapy to a large extent it depends onthe size and wehre it is. Almost certianly it requires more than this drug to get a cure if acure is possible. ...Read more

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Is radiation therapy only used for treating cancer?

Is radiation therapy only used for treating cancer?

No: There are other conditions and types of radiation that physicians treat. Example radioactive iodine for hyperthyroid patient. Keloid scars are prevented with radiation. Benign growths in various location are treated with radiation. ...Read more

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How effective is photodynamic therapy for treating basal cell cancer?

How effective is photodynamic therapy for treating basal cell cancer?

Rarely used: Since most basal cell tumors grow locally and rarely if ever metastasize the best approach is to remove locally by resection. If lesion small and superficial EFUDEX (fluorouracil) cream applied locally will remove lesion. If more advanced, MOHs paste used. Photodynamic therapy best used in area where local treatment cant be applied. ...Read more

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How effective is radiation therapy for treating lymphoma?

Can be very effectiv: Radiation therapy is commonly used and is highly effective for treatment of lymphomas but only for early stages(Mostly stage-1 and some cases of stage-2). For more advanced cases chemotherapy plays a more important role. You need to tell us what type of lymphoma it is and what is the stage of disease before we can give you a more reliable answer. ...Read more

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Hello docs, is gene therapy suitable for pancreatic cancer patients?

Hello docs, is gene therapy suitable for pancreatic cancer patients?

Not available: Gene therapy for cancers, including pancreatic cancer is not in common use. See this site for more info. http://www.mayoclinic.com/health/gene-therapy/my00105. ...Read more

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How effective is radiation therapy for treating leukemia?

Chemo is treatment: Leukemia is primarily treated with chemotherapy. Radiation has been used in the past for so called "sanctuary" sites like the brain and scrotum. However, today even that is less common. However, in situations where we have to treat leukemic masses, called chloromas, radiation is very effective at lower doses. ...Read more

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Can you explain neoadjuvant therapy in cancer treatment?

Can you explain neoadjuvant therapy in cancer treatment?

Neoadjuvant therapy: Is typically used when a patient needs a tumor surgically removed but the doctors think it would be best to shrink the tumor some before the surgery actually happens. Neoadjuvant therapy can be chemotherapy and/or radiation therapy. Typically, after a few weeks of this treatment, the surgeons remove the tumor, hopefully with greater success than they would have had before the additional therapy. ...Read more

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Genetic (Definition)

From a medical standpoint, "genetic" refers to the potential heritability of various medical conditions. While some conditions are inevitable (at some point in one's life) as a consequence of simple genetic heritability (eg huntington's disease), a large number of medical conditions (including all behaviorial health disorders) are the expressed final pathway of a ...Read more


Gene (Definition)

A hereditary unit consisting of a sequence of dna that occupies a specific location on a chromosome and determines a particular characteristic in an organism. Genes undergo mutation when their ...Read more