scholarly journals Bone Marrow-Derived Stem Cells in Pathogenesis of Helicobacter Pylori-Associated Gastric Cancer

2015 ◽  
Vol 6 (9) ◽  
pp. e110 ◽  
Author(s):  
Mohammad Yaghoobi
Keyword(s):  
Gastric Cancer ◽  
Stem Cells ◽  
Bone Marrow ◽  
Helicobacter Pylori

Bone Marrow-Derived Mesenchymal Stem Cells Favor the Immunosuppressive T Cells Skewing in a Helicobacter Pylori Model of Gastric Cancer

2013 ◽  
Vol 22 (21) ◽  
pp. 2836-2848 ◽  
Author(s):  
Rong Lin ◽  
Huan Ma ◽  
Zhen Ding ◽  
Weina Shi ◽  
Wei Qian ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Stem Cells ◽  
Bone Marrow ◽  
T Cells ◽  
Helicobacter Pylori ◽  
Mesenchymal Stem Cells

Increased Production of Matrix Metalloproteinases in Helicobacter pylori Infection that Stimulates Gastric Cancer Stem Cells

2020 ◽  
Keyword(s):  
Gastric Cancer ◽  
Stem Cells ◽  
Helicobacter Pylori ◽  
Cancer Stem Cells ◽  
Histopathological Examination ◽  
Physiological Saline ◽  
Rrna Gene ◽  
Peptic Ulcers ◽  
Gastric Cancer Stem Cells ◽  
H Pylori

Background and aim: Helicobacter pylori (H. pylori) is an incriminated pathogen causing diseases in both animals and humans and considered a zoonotic pathogen. H. pylori infection is considered a cause of gastric cancer, which rests a significant health care challenge. This study analyzes the expression pattern of matrix metalloprotein 2 (MMP-2) in patients with Helicobacter pylori-associated gastritis and the effect of H. pylori on gastric cancer stem cells, as well as study the role of helicon bacteriosis in dog in transmission of H. pylori infection to human. Materials and methods: Fifty-five of each sample (gastric biopsy, blood and stool) were collected from patients suffering from dyspepsia, chronic vomiting and perforated peptic ulcers and also from apparent healthy dogs. The investigation detected H. pylori by serological and histopathological examination. Biopsies were stored in physiological saline for identification of H. pylori by conventional time PCR. MMP-2 and Gastric cancer stem cells were then identified by immunohistochemistry. Results: Serological identification for H. pylori Antigen and Antibodies revealed (63% human, 50% dogs) and (87% human, 90% dogs) respectively were positive. Genotyping of H. pylori based on 16S rRNA gene showed 54.5% of human and 35% of dogs were positive. Immunohistochemistry revealed strong expression of CD44 in H. pylori- associated gastric cancer cases, MMP-2 expression was observed in all neoplastic lesions associated with H. pylori infection. Conclusion: H. pylori infection affects gastric mucosa and induces changes in gastric stem cells altering their differentiation and increased expression of MMP’s and CD44with a resultant potentiation of oncogenic alteration. In addition the up-regulation of both markers could be an instrumental to interpret the origination of gastric cancer.

scholarly journals Lymph node metastasis-derived gastric cancer cells educate bone marrow-derived mesenchymal stem cells via YAP signaling activation by exosomal Wnt5a

Oncogene ◽  
2021 ◽  
Vol 40 (12) ◽  
pp. 2296-2308
Author(s):  
Mei Wang ◽  
Xinxin Zhao ◽  
Rong Qiu ◽  
Zheng Gong ◽  
Feng Huang ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Stem Cells ◽  
Bone Marrow ◽  
Mesenchymal Stem Cells ◽  
Lymph Node ◽  
Lymph Node Metastasis ◽  
Metastatic Gastric Cancer ◽  
Gastric Cancer Cells ◽  
Node Metastasis ◽  
Signaling Activation

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.

Peripheral trafficking of bone marrow-derived stem cells in patients with different types of gastric neoplasms: Significance of complement and interleukins.

2016 ◽  
Vol 34 (4_suppl) ◽  
pp. 49-49
Author(s):  
Wojciech Blogowski ◽  
Ewa Zuba-Surma ◽  
Marta Budkowska ◽  
Daria Salata ◽  
Maciej Tarnowski ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Stem Cells ◽  
Bone Marrow ◽  
Progenitor Cells ◽  
Clinical Stage ◽  
Gastric Neoplasms ◽  
Differentiation Markers ◽  
Hematopoietic Stem ◽  
Gastric Tumors ◽  
Gastric Cancer Patients

49 Background: Increasing evidence suggests that gastric malignancy may be a stem cell disorder. Methods: Using FACS analysis supported by ImageStream technique verification, various populations of bone marrow-derived stem cells (BMSCs), such as Lin-CD45-CD133+CXCR4+ very small embryonic/epiblast-like stem cells (VSELs), CD45-STRO-1+CD105+ mesenchymal stem cells (MSCs), Lin-CD45+CD133+ hematopoietic stem/progenitor cells (HSPCs), and CD34 +/ KDR +/ CD31 +/ CD45- endothelial progenitor cells (EPCs) were enumerated and sorted from peripheral blood samples of patients with gastric cancer (n = 23) and other gastric tumors (GISTs, NENs, lymphomas; n = 15) and control patients (n = 15). RT-qPCR analysis for the expression of cancerous, embryonic, and tissue trans-differentiation markers (Oct-4, Nanog, TFF-1, TFF-2, Lgr-5, BMI-1) in circulating VSELs was employed. The plasma levels of stromal-derived factor-1 (SDF-1), complement-derived anaphylatoxins/molecules (C3a, C5a, C5b-9/MAC), and interleukins (IL-6, IL-8, IL-17 and IL-23) were measured. Results: Significantly lower numbers of circulating HSPCs, and intensified peripheral trafficking of both VSELs and MSCs was observed in patients with gastric cancer, but not in those with other types of gastric tumors. In gastric cancer patients, the circulating VSELs presented higher gene expression of Oct-4, Nanog, Lgr-5, BMI-1, and TFF-1/2. The abnormal balance in the peripheral trafficking of BMSCs in patients with gastric cancer was not associated with the clinical stage of the disease or with the systemic levels of stromal-derived factor-1 (SDF-1), but correlated with the levels of C5b-9/MAC, IL-6, IL-8 and IL-23. Conclusions: Abnormal peripheral trafficking of BMSCs occurs in patients with gastric cancer, but not in those with other types of gastric neoplasms. Selected interleukins and complement cascade-derived molecules, but not SDF-1, seem to be significant players associated with this phenomenon (POIG.01.01.02-00-109/09 and IP2014003273).

scholarly journals Effect of Helicobacter pylori infection on stromal-derived factor-1/CXCR4 axis in bone marrow-derived mesenchymal stem cells

2014 ◽  
Vol 3 (1) ◽  
pp. 19 ◽  
Author(s):  
Ali Jalili ◽  
Mina Beiraghdar ◽  
Shohreh Fakhari ◽  
Enayat Kalantar ◽  
Mehrnoush Nikzaban ◽  
...  
Keyword(s):  
Stem Cells ◽  
Bone Marrow ◽  
Helicobacter Pylori ◽  
Mesenchymal Stem Cells ◽  
Helicobacter Pylori Infection ◽  
Cxcr4 Axis
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