scholarly journals Cancer-Preventive Role of Bone Marrow-Derived Mesenchymal Stem Cells on Colitis-Associated Colorectal Cancer: Roles of Gut Microbiota Involved

2021 ◽  
Vol 9 ◽  
Author(s):  
Ruohang He ◽  
Chaoqun Han ◽  
Ying Li ◽  
Wei Qian ◽  
Xiaohua Hou
Keyword(s):  
Colorectal Cancer ◽  
Stem Cells ◽  
Bone Marrow ◽  
Cell Proliferation ◽  
Mesenchymal Stem Cells ◽  
Tumor Cell ◽  
Rna Sequencing ◽  
Ribosomal Rna ◽  
Tumor Cell Proliferation

BackgroundMesenchymal stem cells (MSCs) treatment showed promising results in inflammatory bowel disease in both rodent models and patients. Nevertheless, previous studies conducted conflicting results on preclinical tumor models treated with MSCs concerning their influence on tumor initiation and progression. This study is designed to demonstrate the role of bone marrow-derived MSCs and the potential mechanism in the colitis-associated colon cancer (CAC) model.MethodsBone marrow-derived MSCs were isolated from green fluorescent protein-transgenic mice, cultured, and identified by flow cytometry. Azoxymethane and dextran sulfate sodium were administrated to establish the CAC mouse model, and MSCs were infused intraperitoneally once per week. The mice were weighed weekly, and colon length, tumor number, and average tumor size were assessed after the mice were killed. MSC localization was detected by immunofluorescence staining; tumor cell proliferation and apoptosis were measured by immunohistochemistry staining of Ki-67 and terminal deoxynucleotidyl transferase deoxyuridine triphosphate nick end labeling assay, respectively. The colonic tumor tissues were isolated for RNA-seq, and fecal samples were collected for 16S ribosomal RNA sequencing of the microbiome.ResultsAfter injection intraperitoneally, MSCs migrated to the intestine and inhibited the initiation of colitis-associated colorectal cancer. This inhibition effect was marked by less weight loss, longer colon length, and reduced tumor numbers. Moreover, MSCs reduced tumor cell proliferation and induced tumor cell apoptosis. Furthermore, MSCs could inhibit chronic inflammation assessed by RNA-sequencing and promote gut microbiome normalization detected by 16S ribosomal RNA sequencing.ConclusionThe results proved that MSCs could migrate to the colon, inhibit chronic inflammation, and regulate gut microbiome dysbiosis to suppress the development of CAC.

scholarly journals NF-κB downregulation may be involved the depression of tumor cell proliferation mediated by human mesenchymal stem cells

2008 ◽  
Vol 29 (3) ◽  
pp. 333-340 ◽  
Author(s):  
Ling QIAO ◽  
Tie-jun ZHAO ◽  
Feng-ze WANG ◽  
Chang-liang SHAN ◽  
Li-hong YE ◽  
...  
Keyword(s):  
Stem Cells ◽  
Cell Proliferation ◽  
Mesenchymal Stem Cells ◽  
Tumor Cell ◽  
Human Mesenchymal Stem Cells ◽  
Tumor Cell Proliferation

Mesenchymal Stem Cells Contribute to Tumor Cell Proliferation by Direct Cell-Cell Contact Interactions

2010 ◽  
Vol 28 (5) ◽  
pp. 526-534 ◽  
Author(s):  
Berber D. Roorda ◽  
Arja ter Elst ◽  
Tiny G. J. Meeuwsen-de Boer ◽  
Willem A. Kamps ◽  
Eveline S. J. M. de Bont
Keyword(s):  
Stem Cells ◽  
Cell Proliferation ◽  
Mesenchymal Stem Cells ◽  
Tumor Cell ◽  
Cell Contact ◽  
Tumor Cell Proliferation ◽  
Contact Interactions ◽  
Direct Cell ◽  
Cell Cell

Cardiac Derived Stromal Cells Inhibit Tumor Cell Proliferation: A Potential Role Of miR206

Blood ◽  
2013 ◽  
Vol 122 (21) ◽  
pp. 4861-4861
Author(s):  
Ian K. McNiece ◽  
Santhosh Sivajothi
Keyword(s):  
Stem Cells ◽  
Cell Proliferation ◽  
Tumor Cell ◽  
Cell Lines ◽  
Stromal Cells ◽  
Cardiac Tissue ◽  
Tumor Cell Lines ◽  
Tumor Cell Proliferation ◽  
Inhibition Of Proliferation

Abstract Stromal cells play an important role in control of proliferation and differentiation of stem cells and are a key component of the stem cell niche. Bone marrow (BM) stromal cells (also termed mesenchymal stem cells; MSC) have been extensively studied and shown to control differentiation of hematopoietic stem cells (HSCs) in part through secreted growth factors. Recent studies have demonstrated the presence of stromal cells in cardiac tissue, however the role of cardiac stromal cells (CStrC) is unclear. In this study we have compared human CStrCs to human BM-MSCs and demonstrate that CStrCs have a similar morphology and surface marker expression as BM-MSCs. To further characterize the CStrCs we performed micro array analysis of human CStrCs compared to human BM-MSCs. The CStrCs expressed a distinct cytokine and cytokine receptor profile compared to BM-MSC. In addition, a number of micro RNAs were expressed at very high levels in CStrCs compared to BM-MSC. Cardiac- associated microRNAs, including miR-1, miR-133a, and miR-206 were expressed at higher levels in CStrCs compared to BM-MSC. Given the lack of tumor development in cardiac tissue we hypothesized that CStrCs would fail to support tumor cell growth which has been described for BM-MSCs. Therefore, we cultured human tumor cell lines on CStrCs and compared the tumor cell proliferation to BM-MSCs. CStrCs inhibited the proliferation of a range of tumor cell lines including myeloid cell lines HL60, K562, myeloma cell lines U-266, RPMI 8266, ARP-1 and the B cell line Raji, while BM-MSCs supported the proliferation of tumor cells. Further we tested media conditioned by CStrCs and demonstrated inhibition of proliferation of both cell lines. Previous studies have implicated miR-206 in inhibition of proliferation of tumor cells and given the high levels of expression of miR-206 in CStrCs we hypothesize that miR-206 is a key player in the inhibitory effects of CStrCs and this effect is mediated via secreted molecules. Disclosures: McNiece: Proteonomix Inc: Consultancy.

scholarly journals MicroRNA treatment modulates osteogenic differentiation potential of mesenchymal stem cells derived from human chorion and placenta

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Kulisara Marupanthorn ◽  
Chairat Tantrawatpan ◽  
Pakpoom Kheolamai ◽  
Duangrat Tantikanlayaporn ◽  
Sirikul Manochantr
Keyword(s):  
Gene Expression ◽  
Stem Cells ◽  
Bone Marrow ◽  
Mesenchymal Stem Cells ◽  
Transcription Factor ◽  
Osteogenic Differentiation ◽  
Differentiation Potential ◽  
Osteogenic Gene Expression ◽  
Osteogenic Gene

AbstractMesenchymal stem cells (MSCs) are important in regenerative medicine because of their potential for multi-differentiation. Bone marrow, chorion and placenta have all been suggested as potential sources for clinical application. However, the osteogenic differentiation potential of MSCs derived from chorion or placenta is not very efficient. Bone morphogenetic protein-2 (BMP-2) plays an important role in bone development. Its effect on osteogenic augmentation has been addressed in several studies. Recent studies have also shown a relationship between miRNAs and osteogenesis. We hypothesized that miRNAs targeted to Runt-related transcription factor 2 (Runx-2), a major transcription factor of osteogenesis, are responsible for regulating the differentiation of MSCs into osteoblasts. This study examines the effect of BMP-2 on the osteogenic differentiation of MSCs isolated from chorion and placenta in comparison to bone marrow-derived MSCs and investigates the role of miRNAs in the osteogenic differentiation of MSCs from these sources. MSCs were isolated from human bone marrow, chorion and placenta. The osteogenic differentiation potential after BMP-2 treatment was examined using ALP staining, ALP activity assay, and osteogenic gene expression. Candidate miRNAs were selected and their expression levels during osteoblastic differentiation were examined using real-time RT-PCR. The role of these miRNAs in osteogenesis was investigated by transfection with specific miRNA inhibitors. The level of osteogenic differentiation was monitored after anti-miRNA treatment. MSCs isolated from chorion and placenta exhibited self-renewal capacity and multi-lineage differentiation potential similar to MSCs isolated from bone marrow. BMP-2 treated MSCs showed higher ALP levels and osteogenic gene expression compared to untreated MSCs. All investigated miRNAs (miR-31, miR-106a and miR148) were consistently downregulated during the process of osteogenic differentiation. After treatment with miRNA inhibitors, ALP activity and osteogenic gene expression increased over the time of osteogenic differentiation. BMP-2 has a positive effect on osteogenic differentiation of chorion- and placenta-derived MSCs. The inhibition of specific miRNAs enhanced the osteogenic differentiation capacity of various MSCs in culture and this strategy might be used to promote bone regeneration. However, further in vivo experiments are required to assess the validity of this approach.

Does hysteroscopy promote tumor cell proliferation in endometrial cancer?

2021 ◽  
Vol 50 (3) ◽  
pp. 28-30
Author(s):  
A. F. Urmancheeva ◽  
D. R. Zel'dovich ◽  
M. S. Shushania ◽  
A. V. Safronov
Keyword(s):  
Cell Proliferation ◽  
Endometrial Cancer ◽  
Comparative Analysis ◽  
Tumor Cell ◽  
Tumor Cell Proliferation ◽  
Tumor Cell Dissemination ◽  
Cytological Investigation ◽  
Promote Tumor Cell ◽  
Cell Dissemination

Peritoneal cytological investigation was carried out inpatients with endometrial cancer, who were subjected to hysteroscopy before the operation (37patients) or were operated on without hysteroscopy. Comparative analysis of the data didnt reveal the role of hysteroscopy in tumor cell dissemination.

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