Triple combination of retinoic acid+aclacinomycin A+ dimethylformamide induces differentiation of human acute myeloid leukaemic blasts in primary culture

Abstract

Differentiation induction therapy provides unalternative for treatment of acute myeloid leukaemia (AML) patients who are either unsuitable for or unresponsive to conventional cytotoxic chemotherapy.

The effect of a triple combination of retinoic acid(RA)+aclacinomycin A (ACM)+dimethylformamide (DMF) on differentiation of blasts from 24 AML patients was studied.

Non-adherent mononuclear cells were seeded at a concentration of 5 x 10(5) cells/ml in 24-well tissue culture plates containing RPM11640 culture medium with 20% fetal calf serum and 10% 5637-conditioned medium and incubated with 10(-6) M retinoic acid, 80nM aclacinomycin A and/or 100mM dimethylformamide alone and in combinations with each other for six days at 37 degrees C in a humidified incubator under 5% CO2. Morphological, cytochemical and functional differentiation into mature cells were induced in blasts from 22 out of the 24 AML patients after exposure to the triple combination of 10(-6)M RA+80nM ACM+100mM DMF for 6 days in primary culture.

These highly effective results justify a clinical trial of this triple combination for AML patients who are either unsuitable for or unresponsive to conventional cytotoxic chemotherapy.

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See also:

- Official Web Site: The Di Bella Method;

- The Di Bella Method (A Fixed Part - All-Trans Retinoic Acid, Analogues and/or Derivatives - Approximately 60mg per day orally: 40mg per day Beta-Carotene/β-Carotene, 10mg per day ATRA and 10mg per day Axerophthol palmitate);

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- Solution of retinoids in vitamin E in the Di Bella Method biological multitherapy;

- The Di Bella Method (A Fixed Part - Alpha tocopheryl acetate/Vitamin E, approximately 20 grams per day orally);

- Cancer and Vitamin E (analogues and/or derivatives) and cancer - In vitro, review and in vivo publications;

- The Di Bella Method (A Fixed Part - Bromocriptine and/or Cabergoline);

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- Somatostatin in oncology, the overlooked evidences - In vitro, review and in vivo publications;

- Publication, 2018 Jul: Over-Expression of GH/GHR in Breast Cancer and Oncosuppressor Role of Somatostatin as a Physiological Inhibitor (from Di Bella's Foundation);

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- Publication, 2019 Aug: The Entrapment of Somatostatin in a Lipid Formulation: Retarded Release and Free Radical Reactivity (from Di Bella's Foundation);

- Publication, 2019 Sep: Effects of Somatostatin and Vitamin C on the Fatty Acid Profile of Breast Cancer Cell Membranes (from Di Bella's Foundation);

- Publication, 2019 Sep: Effects of somatostatin, curcumin, and quercetin on the fatty acid profile of breast cancer cell membranes (from Di Bella's Foundation);

- Publication, 2020 Sep: Two neuroendocrine G protein-coupled receptor molecules, somatostatin and melatonin: Physiology of signal transduction and therapeutic perspectives (from Di Bella's Foundation);

- The Di Bella Method (A Fixed Part - Dihydrotachysterol, Alfacalcidol, synthetic Vitamin D3);

- Vitamin D (analogues and/or derivatives) and cancer - In vitro, review and in vivo publications;

- Chronic Lymphocytic Leukemia: Long-Lasting Remission with Combination of Cyclophosphamide, Somatostatin, Bromocriptine, Retinoids, Melatonin, and ACTH.