Bone marrow-derived mesenchymal stem cells increase drug resistance in CD133-expressing gastric cancer cells by regulating the PI3K/AKT pathway

Tumor Biology ◽  
2016 ◽  
Vol 37 (11) ◽  
pp. 14637-14651 ◽  
Author(s):  
Nuo Ji ◽  
Ji-Wei Yu ◽  
Xiao-Chun Ni ◽  
Ju-Gang Wu ◽  
Shou-Lian Wang ◽  
...  
2018 ◽  
Vol 7 (3) ◽  
pp. 856-868 ◽  
Author(s):  
Mei Wang ◽  
Fang Yang ◽  
Rong Qiu ◽  
Mengchu Zhu ◽  
Huiling Zhang ◽  
...  

2021 ◽  
Vol 11 (12) ◽  
pp. 2415-2420
Author(s):  
Sujuan Wu ◽  
Jinyan Wang ◽  
Tao Niu

Exosomes can transmit microRNAs (miRNAs) and other substances between different cells. Bone marrow mesenchymal stem cells (BMSCs) can migrate to tumor sites. They are related to a variety of tumors, but the role of miR-126-3p exosomes derived from BMSCs in gastric cancer has not been elucidated. miR-126-3p overexpressing BMSCs were established and cell supernatant exosomes were collected followed by measuring miR-126-3p level by PCR, ESM1 expression by western blot, targeting relationship by dual luciferase gene reporter assay along with analysis of cell proliferation, invasion and apoptosis. The addition of BMSCs exosomes to gastric cancer cells reduced the miR-126-3p level, promoted ESM1 expression, and worsened the biological behaviors of tumor cells. miR-126-3p-overexpressed BMSCs exosomes promoted miR-126-3p expression, resulting in the decrease of ESM1 expression and inhibiting the further deterioration. In conclusion, BMSCs can inhibit the increase of miR-126-3p expression and ESM1 to inhibit the deterioration of biological behaviors of gastric cancer cells.


Oncogene ◽  
2021 ◽  
Vol 40 (12) ◽  
pp. 2296-2308
Author(s):  
Mei Wang ◽  
Xinxin Zhao ◽  
Rong Qiu ◽  
Zheng Gong ◽  
Feng Huang ◽  
...  

AbstractLymph node metastasis (LNM), a common metastatic gastric-cancer (GC) route, is closely related to poor prognosis in GC patients. Bone marrow-derived mesenchymal stem cells (BM-MSCs) preferentially engraft at metastatic lesions. Whether BM-MSCs are specifically reprogrammed by LNM-derived GC cells (LNM-GCs) and incorporated into metastatic LN microenvironment to prompt GC malignant progression remains unknown. Herein, we found that LNM-GCs specifically educated BM-MSCs via secretory exosomes. Exosomal Wnt5a was identified as key protein mediating LNM-GCs education of BM-MSCs, which was verified by analysis of serum exosomes collected from GC patients with LNM. Wnt5a-enriched exosomes induced YAP dephosphorylation in BM-MSCs, whereas Wnt5a-deficient exosomes exerted the opposite effect. Inhibition of YAP signaling by verteporfin blocked LNM-GC exosome- and serum exosome-mediated reprogramming in BM-MSCs. Analysis of MSC-like cells obtained from metastatic LN tissues of GC patients (GLN-MSCs) confirmed that BM-MSCs incorporated into metastatic LN microenvironment, and that YAP activation participated in maintaining their tumor-promoting phenotype and function. Collectively, our results show that LNM-GCs specifically educated BM-MSCs via exosomal Wnt5a-elicited activation of YAP signaling. This study provides new insights into the mechanisms of LNM in GC and BM-MSC reprogramming, and will provide potential therapeutic targets and detection indicators for GC patients with LNM.


2016 ◽  
Vol 107 (3) ◽  
pp. 290-297 ◽  
Author(s):  
Gosuke Takiguchi ◽  
Michiru Nishita ◽  
Kana Kurita ◽  
Yoshihiro Kakeji ◽  
Yasuhiro Minami

2021 ◽  
Vol 11 ◽  
Author(s):  
Bin Chen ◽  
Tuo Cai ◽  
Chao Huang ◽  
Xueyan Zang ◽  
Li Sun ◽  
...  

Background: Tumor-associated stromal cells have been widely recognized for their tumor-promoting capability involving paracrine signaling. However, the underlying mechanism and the effects of the molecules in the glycolysis pathway in gastric cancer-associated mesenchymal stem cells (GCMSCs) and gastric cancer cells on tumor progression remain unclear.Methods: The expression of hepatocyte growth factor (HGF) in GCMSCs and bone marrow mesenchymal stem cells (BMMSCs) was detected by enzyme-linked immunosorbent assay (ELISA). The effect of HGF derived from GCMSCs on the proliferation, metastasis, and HK2 expression of gastric cancer cells was evaluated in vitro and in vivo. The effects of G6PD on the production of HGF in mesenchymal stem cells (MSCs) were analyzed by immunoblotting.Results: HGF derived from GCMSCs promoted glycolysis, proliferation, and metastasis of gastric cancer by upregulating c-Myc-HK2 signal. The progression of the disease induced by GCMSCs decelerated in the absence of HK2. The expression of G6PD activated NF-κB signaling and stimulated the production of HGF in GCMSCs. Blocking HGF derived from GCMSCs decreased proliferation, metastasis, and angiogenesis of gastric cancer cells in vivo.Conclusions: GCMSCs highly expressed G6PD and facilitated the progression of gastric cancer through the G6PD-NF-κB-HGF axis coordinates. Blocking HGF derived from GCMSCs is a potential new therapeutic target for the treatment of gastric cancer.


2018 ◽  
Vol 2018 ◽  
pp. 1-11 ◽  
Author(s):  
Bin Chen ◽  
Jing Yu ◽  
Qianqian Wang ◽  
Yuanyuan Zhao ◽  
Li Sun ◽  
...  

The clinical application of human bone marrow mesenchymal stem cells (hBM-MSCs) has generated a great deal of interest because of their potential use in regenerative medicine and tissue engineering. However, safety concerns over hBM-MSCs limit their clinical application. In this study, we observed that hBM-MSC-conditioned medium (hBM-MSC-CM) promotes gastric cancer development via upregulation of c-Myc. Our results showed that c-Myc was upregulated in MGC-803 and BGC-823 cells after hBM-MSC-CM treatment. Moreover, we found that the c-Myc inhibitor JQ1 and c-Myc siRNA decreased the expression of c-Myc in hBM-MSC-CM-treated tumor cells in vitro. Additionally, hBM-MSC-CM enhanced the migration and glucose uptake of gastric cancer cells. In vivo studies showed that JQ1 inhibited hBM-MSC-CM-induced gastric cancer growth. These results indicated that hBM-MSC-CM induced gastric cancer growth via upregulation of c-Myc, which may be a potential risk factor and/or a therapeutic target for clinical applications.


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