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Portulacerebroside A inhibits adhesion, migration, and invasion of human leukemia HL60 cells and U937 cells through the regulation of p38/JNK signaling pathway

Authors Ye QD, Liao XL, Fu P, Dou JY, Chen K, Jiang H

Received 18 July 2016

Accepted for publication 23 September 2016

Published 11 November 2016 Volume 2016:9 Pages 6953—6963


Checked for plagiarism Yes

Review by Single-blind

Peer reviewers approved by Dr Amy Norman

Peer reviewer comments 2

Editor who approved publication: Dr Ingrid Espinoza

Qidong Ye, Xuelian Liao, Pan Fu, Jiaying Dou, Kai Chen, Hui Jiang

Department of Hematology, Shanghai Children’s Hospital, Shanghai Jiao Tong University, Shanghai, People’s Republic of China

Abstract: Acute myeloid leukemia (AML) is a highly malignant hematopoietic tumor. This study aimed to explore the effect of portulacerebroside A (PCA) on the adhesion, migration, and invasion in human leukemia HL60 cells and U937 cells and clarify the possible mechanisms involved, which could provide potential strategies for the treatment of AML. By methyl thiazolyl tetrazolium analysis, it was found that PCA (1–10 µM) suppressed the cell viability in a time- and dose-dependent manner. A total of 1, 2, and 5 µM of PCA dramatically inhibited the adhesion, migration, and invasion of HL60 cells and U937 cells in a dose-dependent manner. Phosphorylation level of JNK and P38 protein level was measured by Western blot. After the real-time quantification polymerase chain reaction and Western blot detection of the total RNA and protein, messenger RNA, and protein expression levels of Ras homologous C (RhoC), metastasis-associated gene 1 (MTA1) and matrix metalloproteinase-2/9 (MMP-2/9) were decreased significantly in a dose-dependent manner. The phosphorylation level of c-Jun N-terminal kinase (JNK) and P38 mitogen-activated protein kinase (P38) was decreased dramatically in HL60 cells and U937 cells after PCA treatment. In conclusion, PCA significantly inhibits the adhesion, migration, and invasion of HL60 cells and U937 cells by suppressing the p38/JNK pathway and regulating the expressions of related genes.

Keywords: portulacerebroside A, PCA, p38/JNK, leucocythemia, adhesion, migration, invasion

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