Role of Amygdalin in Blocking DNA Replication in Breast Cancer In Vitro

Title:Role of Amygdalin in Blocking DNA Replication in Breast Cancer In Vitro

Volume: 22 Issue: 12

Author(s): Sarah Albogami*Alaa Alnefaie

Affiliation:

• Department of Biotechnology, College of Science, Taif University, P.O. Box 11099, Taif 21944,Saudi Arabia

Keywords: Amygdalin, anticancer agent, DNA replication, MCF-7 cells, breast cancer, microarray.

Abstract:

Background: Amygdalin has anticancer benefits because of its active component, hydrocyanic acid. However, the underlying molecular mechanism is unclear.

Objective: This study aimed to investigate the molecular mechanism by which amygdalin exerts antiproliferative effects in the human Michigan Cancer Foundation-7 (MCF-7) breast cancer cell line.

Methods: MCF-7 cells were exposed to amygdalin at a particular IC₅₀ value for 24 and 48 hours and compared to non-treated cells. An Affymetrix whole-transcript expression array was used to analyze the expression of 32 genes related to DNA replication.

Results: Among the 32 genes, amygdalin downregulated the expression of 16 genes and 19 genes by >1.5-fold at 24 and 48 hours, respectively. At 24 hours, the downregulated genes from the DNA polymerase α-primase complex were POLA1, POLA2, PRIM1, and PRIM2; DNA polymerase δ complex: POLD3; DNA polymerase ε complex: POLE4, Minichromosome Maintenance protein (MCM) complex (helicase): MCM2, MCM3, MCM4, MCM6, and MCM7; clamp and clamp loader: PCNA; nuclease: FEN1; and DNA ligase: LIG1. At 48 hours, the downregulated genes from the DNA polymerase α-primase complex were POLA1, POLA2, and PRIM1; DNA polymerase δ complex: POLD3; DNA polymerase ε complex: POLE and POLE2; MCM complex (helicase): MCM2, MCM3, MCM4, MCM5, MCM6, and MCM7; clamp and clamp loader: PCNA, RFC2, and RFC3; RNase H: RNASEH2A; nucleases: DNA2 and FEN1; and DNA ligase: LIG1.

Conclusion: Amygdalin treatment caused downregulation of several genes that play critical roles in DNA replication in the MCF-7 cell line. Thus, it might be useful as an anticancer agent.

Cite this article as:

Albogami Sarah*, Alnefaie Alaa , Role of Amygdalin in Blocking DNA Replication in Breast Cancer In Vitro, Current Pharmaceutical Biotechnology 2021; 22 (12) . https://dx.doi.org/10.2174/1389201022666210203123803