2015, Number 1
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Rev Hematol Mex 2015; 16 (1)
Evaluation of amino-acid L-canavanine as adjuvant therapy in acute lymphoblastic leukemia
López-Martínez B, Gutiérrez-Romero M, Ruiz-Bedolla E
Language: Spanish
References: 14
Page: 3-8
PDF size: 310.03 Kb.
ABSTRACT
Background: There are few therapeutic agents that are effective for patients
with relapsed acute lymphoblastic leukemia, furthermore they are
not of easy access, are very expensive and with several adverse effects.
L-canavanine is an amino acid that induces apoptosis and enhances
some chemotherapics when administering to patients with malignant
hemopathy as leukemia and might strengthen the action of certain
therapeutic agents.
Objectives: To assess L-canavanine as adjuvant therapeutic agent in the
treatment of patients with acute lymphoblastic leukemia and to identify
its adverse effects.
Material and method: A descriptive and prospective study that included
patients with diagnosis of acute lymphoblastic leukemia to who by
randomness was administered L-canavanine or placebo 600 mg/m
2
separated in 3 dosage daily during 60 days. Then were analyzed serum
levels of L-canavanine, blood cytology, liver function tests, cholesterol
and tryglicerides, as well as the side effects.
Results: Patients receiving L-canavanine had good levels of platelets,
increased their physical activity and improved their levels of laboratory
tests in comparison with patients receiving placebo.
Conclusions: L-canavanine is a good option as therapeutic aid with
better clinical outcomes in patients with acute lymphoblastic leukemia
to long time because it is a product cheap and with few side effects.
REFERENCES
Malinow MR, Bardana EJ, Goodnight SH. Pancytopenia during ingestion of alfalfa seeds. Lancet 1981;14:615.
Swaffar DS, Ang CY. Growth inhibitory effect of L-canavanine against MIA Pa Ca-2 pancreatic cancer cells is not due to conversion to its toxic metabolite canaline. Anticancer Drugs 1999;10:113-118.
Swaffar DS, Ang CY, Desai PB, et al. Inhibition of the growth of human pancreatic cancer cells by the arginine antimetabolite L-canavanine. Cancer Res 1994;54:6045-6048.
Ding Y, Matsukawa Y, Ohtani Fujita N, et al. Growth inhibition of A 549 human lung adenocarcinoma cells by L-canavanine is associated with p21/ WAFI induction. Cancer Res 1999;90:69-74.
Mattei E, Damasi D, Mileo AM, et al. Stress response survival and enhancement of heat sensitivity in a human melanoma cell line treated with L-canavanine. Anticancer Res 1992;12:757-762.
Green MH, Brooks TL, Mendelsohn J, et al. Antitumor activity of L-canavanine against L1210 murine leukemia. Cancer Res 1980;40:535-537.
Thomas DA, Rosenthal GA, Gold DV, et al. Growth inhibition of a rat colon tumor by L-canavanine. Cancer Res 1986;46:2898-2903.
Green MH, Ward JF. Enhancement of human tumor cell killing by L-canavanine in combination with gammaradiation. Cancer Res 1983;43:4180-4184.
Bence AK, et al. The antiproliferative and immunotoxic effects of L-canavanine and L-canaline. Anticancer Drugs 2002;13:313-320.
Ruiz BE, Bravo M JF. Ornitina sérica en pacientes con lupus eritematoso sistémico. Rev Mex Patol Clin 1997;44:217- 221.
Rosenthal GA, Nkomo P. The natural abundance of Lcanavanine, an active anticancer agent, in alfalfa, medicago sativa (L). Pharm Biol 2000;38:1-6.
Rosenthal GA. Preparation and colorimetric analysis of L-canavanine. Anal Biochem 1977;77:147-151.
Worthen DR, Chien L, Tsuboi CP, et al. L-canavanine modulates cellular growth, chemosensitivity and p-glycoprotein substrate accumulation in cultured human tumor cell lines. Cancer 1998;132:229-239.
Malinow MR, McLaughlin P, Naito HK, et al. Effect of alfalfa meal on shrinkage of atherosclerotic plaques during cholesterol feeding in monkeys. Atherosclerosis 1978;30:27-43.