» Articles » PMID: 39339789

Antineoplastic Activity of Sodium Caseinate in a Cytarabine-Resistant Mouse Acute Myeloid Leukemia Cell Line

Abstract

Background: Acute myeloid leukemia (AML) is a hematological neoplasm of rapid and progressive onset, and is the most common form of leukemia in adults. Chemoresistance to conventional treatments such as cytarabine (Ara-C) and daunorubicin is a main cause of relapse, recurrence, metastasis, and high mortality in AML patients. It is known that sodium caseinate (SC), a salt derived from casein, a milk protein, inhibits growth and induces apoptosis in acute myeloid leukemia cells but not in normal hematopoietic cells. However, it is unknown whether SC retains its antileukemic effect in cytarabine-resistant AML cell lines.

Objective: To evaluate the antineoplastic effect of SC in cytarabine-resistant leukemia models.

Methods: The SC inhibits the growth and induces apoptosis in parental WEHI-3 AML cells. Here, we generated two cytarabine-resistant sublines, WEHI-CR25 and WEHI-CR50, which exhibit 6- and 16-fold increased resistance to cytarabine, respectively, compared to the parental WEHI-3 cells. Thus, these sublines mimic a chemoresistant model.

Results: We demonstrate that WEHI-CR25 and WEHI-CR50 cells retain sensitivity to SC, similar to parental WEHI-3 cells. This sensitivity results in inhibited cell proliferation, induced apoptosis, and increased expression of ENT1 and dCK, molecules involved in the entry and metabolism of Ara-C, while decreasing MDR1 expression. Additionally, we observed that SC prolonged the survival of WEHI-CR50 tumor-bearing mice, despite their resistance to Ara-C.

Conclusion: This is the first evidence that SC, a milk protein, may inhibit proliferation and induce apoptosis in cytarabine-resistant cells.

References
1.
Fanciullino R, Farnault L, Donnette M, Imbs D, Roche C, Venton G . CDA as a predictive marker for life-threatening toxicities in patients with AML treated with cytarabine. Blood Adv. 2018; 2(5):462-469. PMC: 5851420. DOI: 10.1182/bloodadvances.2017014126. View

2.
Stallon Illangeswaran R, Jebanesan D, Sivakumar K, Vidhyadharan R, Rajamani B, Janet N . Chemotherapeutic drugs elicit stemness and metabolic alteration to mediate acquired drug-resistant phenotype in acute myeloid leukemia cell lines. Leuk Res. 2023; 128:107054. DOI: 10.1016/j.leukres.2023.107054. View

3.
Richter M, Wohlfromm F, Kahne T, Bongartz H, Seyrek K, Kit Y . The Recombinant Fragment of Human κ-Casein Induces Cell Death by Targeting the Proteins of Mitochondrial Import in Breast Cancer Cells. Cancers (Basel). 2020; 12(6). PMC: 7352597. DOI: 10.3390/cancers12061427. View

4.
Aguiniga-Sanchez I, Ledesma-Martinez E, Lara-Castaneda J, Melendez-Ibarra F, Weiss-Steider B, Soto-Cruz I . Sodium Caseinate in Combination With Daunorubicin or Cytarabine Improves Survival of Mice With Long-established Leukemia. Cancer Diagn Progn. 2022; 2(4):496-502. PMC: 9254099. DOI: 10.21873/cdp.10133. View

5.
Funato T, Harigae H, Abe S, Sasaki T . Assessment of drug resistance in acute myeloid leukemia. Expert Rev Mol Diagn. 2004; 4(5):705-13. DOI: 10.1586/14737159.4.5.705. View