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Why is melanoma chemo resistant?

Why is melanoma chemo resistant?

Researchers have identified a major reason why melanoma is largely resistant to chemotherapy. They found a genetic pathway in melanoma cells that inhibits the cellular mechanism for detecting DNA damage wrought by chemotherapy, thereby building up tolerance to cancer-killing drugs.

How effective is chemotherapy for malignant melanoma?

Chemotherapy doesn’t work as well against melanoma as it does for some other types of cancer. Doctors are more likely to use newer drugs called targeted cancer drugs or immunotherapy first to treat melanoma.

What is the most active single chemotherapy agent used for metastatic melanoma?

Dacarbazine (DTIC) is the most active single agent for treatment of advanced metastatic melanoma and for more than 30 years has remained the standard chemotherapy for this malignancy [8].

How long can you live with malignant melanoma?

5-year relative survival rates for melanoma skin cancer

SEER stage 5-year relative survival rate
Localized 99%
Regional 66%
Distant 27%
All SEER stages combined 93%

Is melanoma resistant to chemotherapy?

Melanoma is a most dangerous and deadly type of skin cancer, and considered intrinsically resistant to both radiotherapy and chemotherapy.

How is chemotherapy used to treat melanoma skin cancer?

Chemotherapy for Melanoma Skin Cancer Chemotherapy (chemo) uses drugs that kill cancer cells. The drugs are usually injected into a vein or taken by mouth as a pill. They travel through the bloodstream to all parts of the body and attack cancer cells that have already spread beyond the skin.

What is the best treatment for melanoma after surgery?

After surgery, (additional) adjuvant treatment with an immune checkpoint inhibitor or with targeted therapy drugs (for cancers with BRAF gene changes) may help lower the risk of the melanoma coming back. Other drugs or perhaps vaccines may also be recommended as part of a clinical trial to try to reduce the chance the melanoma will come back.

What is the survival rate for metastatic melanoma?

The 10-year survival rate for patients with metastatic melanoma is less than 10%. [ 2] More than 3 decades after its initial approval by the US Food and Drug Administration (FDA) in 1975, dacarbazine continues to be the standard of care for most patients with this disease.

Are there any new therapies for metastatic melanoma?

High-dose interleukin-2 (HD IL-2 [Proleukin]), approved by the FDA in 1998 for metastatic melanoma, benefits a small subset of patients. Attempts to improve upon the survival of patients with metastatic disease have met with failure, and the need for successful new therapies for metastatic melanoma cannot be overemphasized.