Why is arsenic used in Apml?

Why is arsenic used in Apml?

The arsenic-based cure of acute promyelocytic leukemia promotes cytoplasmic sequestration of PML and PML/RARA through inhibition of PML body recycling. Blood (2012) 120 (4): 847–857. Arsenic in the form of arsenic trioxide (ATO) is used as a therapeutic drug for treatment of acute promyelocytic leukemia (APL).

How does arsenic help APL?

Studies have shown that arsenic trioxide exerts dose-dependent dual effects on APL cells—it induces apoptosis (programmed cell death) preferentially at relatively high concentrations (0.5 × 10−6 to 2 × 10−6 M) and induces partial differentiation at low concentrations (0.1 × 10−6 to 0.5 × 10−6 M).

Why does ATRA work Apml?

All-Trans Retinoic Acid (ATRA) This drug, a vitamin A derivative, has become a standard component of induction therapy for APL. ATRA targets and eliminates the PML/RARα abnormality. This treatment causes a marked decrease in the concentration of leukemic blast cells in the marrow, and a remission frequently follows.

What is the survival rate of APML?

Unlike most leukemias, acute promyelocytic leukemia (APL) has a very good prognosis, with long-term survival rates up to 90% following treatment.

What type of leukemia is treated with arsenic?

Arsenic trioxide is a chemotherapy drug and is also called Trisenox or ATO. It is a treatment for a type of acute myeloid leukaemia called acute promyelocytic leukaemia (APL).

Can arsenic cure leukemia?

However, it has been used in traditional Chinese medicine since ancient times, to treat serious illnesses. Recently, a single dose of arsenic trioxide (As2O3) has been found especially effective in treating acute promyelocytic leukemia (APL).

Can APML be cured?

Acute promyelocytic leukemia (APL) has become a curable disease by all-trans retinoic acid (ATRA)-based induction therapy followed by two or three courses of consolidation chemotherapy. Currently around 90% of newly diagnosed patients with APL achieve complete remission (CR) and over 70% of patients are curable.

Is APML curable?

Treatment Outcomes Because of advances in diagnostic techniques and modern treatments, APL is today considered to be the most curable subtype of acute myeloid leukemia in adults, with complete remission rates of 90 percent and cure rates of approximately 80 percent and even higher among low-risk patients.

What is the cause of acute promyelocytic leukemia?

Cause. APL is caused by a chromosomal translocation (rearrangement of material) that occurs in some of the body’s cells during a person’s lifetime (a somatic mutation ). The translocation involves the fusion of two genes : the PML gene on chromosome 15 and the RARA gene on chromosome 17.

What are the side effects of arsenic?

Symptoms of arsenic poisoning

  • red or swollen skin.
  • skin changes, such as new warts or lesions.
  • abdominal pain.
  • nausea and vomiting.
  • diarrhea.
  • abnormal heart rhythm.
  • muscle cramps.
  • tingling of fingers and toes.

Is arsenic in chemo?

Arsenic trioxide is a chemotherapy drug and is also called Trisenox or ATO.