Human umbilical cord-derived mesenchymal stem cells inhibit proliferation but maintain survival of Jurkat leukemia cells in vitro by activating Notch signaling.
- Author:
Yin YUAN
1
,
2
;
Danliang CHEN
;
Xuan CHEN
;
Hongwei SHAO
;
Shulin HUANG
Author Information
- Publication Type:Journal Article
- MeSH: Apoptosis; Cell Proliferation; Cell Survival; Cells, Cultured; Coculture Techniques; Humans; Jurkat Cells; Mesenchymal Stromal Cells; cytology; Receptor, Notch1; metabolism; Signal Transduction; Umbilical Cord; cytology
- From: Journal of Southern Medical University 2014;34(4):441-447
- CountryChina
- Language:English
-
Abstract:
OBJECTIVETo investigate the effects of human umbilical cord-derived mesenchymal stem cells (hUC-MSCs) on the proliferation and survival of Jurkat leukemia cells in vitro and explore the possible mechanism.
METHODSJurkat leukemia cells were co-cultured with hUC-MSCs isolated from human umbilical cord tissues by plastic adherence at a ratio of 10:1. The proliferation and survival of the co-cultured Jurkat cells, separated by immunomagnetic bead cell sorting on day 4, were evaluated by flow cytometry. Western blotting was performed to evaluate the activation of Notch signaling in the co-cultured Jurkat cells.
RESULTSJurkat leukemia cells co-cultured with hUC-MSCs for 4 days showed a lowered proliferation rate and cell cycle arrest at G0/G1 phase with a reduction in the cell apoptotic rate. Notch signaling pathway was activated in the co-cultured Jurkat cells as evidenced by an increased cellular expression of HES-1.
CONCLUSIONCo-culture with hUC-MSCs can inhibit the proliferation of Jurkat leukemia cells in vitro and protect the cells from apoptosis by activating Notch signaling, indicating a potential shielding effect of MSCs on leukemia cells.
