Antiproliferative Potential of Olneya tesota PF2 Lectin in Human Acute Monocytic Leukemia Cells

Diana Villegas-Coronado, Jesús Adriana Soto-Guzman, Juan Manuel Martínez-Soto, Nayelli Guadalupe Teran-Saavedra, Ana Maria Guzman-Partida, Luz Vazquez-Moreno, Ana Gloria Villalba-Villalba, Amir Maldonado, Irlanda Lagarda-Diaz

Research output: Contribution to journalArticlepeer-review


Acute monocytic leukemia is a type of myeloid leukemia that develops in monocytes. The current clinical therapies for leukemia are unsatisfactory due to their side effects and nonspecificity toward target cells. Some lectins display antitumor activity and may specifically recognize cancer cells by binding to carbohydrate structures on their surface. Therefore, this study evaluated the response of the human monocytic leukemia cell lines THP-1 to the Olneya tesota PF2 lectin. The induction of apoptosis and reactive oxygen species production in PF2-treated cells was evaluated by flow cytometry, and the lectin-THP-1 cell interaction and mitochondrial membrane potential were evaluated by confocal fluorescence microscopy. PF2 genotoxicity was evaluated by DNA fragmentation analysis via gel electrophoresis. The results showed that PF2 binds to THP-1 cells, triggers apoptosis and DNA degradation, changes the mitochondrial membrane potential, and increases reactive oxygen species levels in PF2-treated THP-1 cells. These results suggest the potential use of PF2 for developing alternative anticancer treatments with enhanced specificity.

Original languageEnglish
Pages (from-to)e202300051
JournalChemistry and Biodiversity
StateE-pub ahead of print - 26 Jun 2023

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© 2023 Wiley-VHCA AG, Zurich, Switzerland.


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