scholarly journals Mesenchymal Stem Cells Promote Tumor Progression via Inducing Stroma Remodeling on Rabbit VX2 Bladder Tumor Model

2018 ◽  
Vol 14 (9) ◽  
pp. 1012-1021 ◽  
Author(s):  
Jun Chen ◽  
Lin Ma ◽  
Nianzhao Zhang ◽  
Yaofeng Zhu ◽  
Keqin Zhang ◽  
...  
Stem Cells ◽  
2014 ◽  
Vol 32 (5) ◽  
pp. 1110-1123 ◽  
Author(s):  
Jinan Behnan ◽  
Pauline Isakson ◽  
Mrinal Joel ◽  
Corrado Cilio ◽  
Iver A. Langmoen ◽  
...  

2013 ◽  
Vol 104 (2) ◽  
pp. 157-164 ◽  
Author(s):  
Ayano Kabashima-Niibe ◽  
Hajime Higuchi ◽  
Hiromasa Takaishi ◽  
Yohei Masugi ◽  
Yumi Matsuzaki ◽  
...  

2021 ◽  
Vol 8 (12) ◽  
pp. 5836-5748
Author(s):  
Safiye Aktas ◽  
Yüksel Olgun ◽  
Hande Evin ◽  
Ayşe Pınar Erçetin ◽  
Tekincan Çağrı Aktaş ◽  
...  

Objective: High-dose cisplatin (CDDP) causes dose-limiting side effects in neuroblastoma (NB) treatment. Mesenchymal stem cells (MSC) are a current research area. The aim of this study is to assess the interaction of MSC with CDDP in nude mouse NB model. Methods: Athymic male nude mice (n=28) thatbhad basal auditory tests, with subcutaneous NB were randomized to control, CDDP, MSC and CDDP+MSC treatment groups. Seven days later, hearing tests were repeatedand the animals were sacrificed. Necrosis, apoptosis and viabilitywere assessed in tumors. MSC rate within the tumor was assessed with flow cytometry for triple CD34+ CD44+ and CD117- expression. Expression of the cochlear cell proteins of calretinin, math-1 and myosin2A were immunohistochemically assessed. Results: Tumor tissues were found to have statistically significantly higher levels of necrosis in CDDP and CDDP+MSC groups. MSC did not change the tumor dimensions in the CDDP group. MSC group had higher triple CD34+ CD44+ and CD117- expression within tumor tissue compared to the control and CDDP groups. In the inner ear, the expression of cochlear cell proteins calretinin, math-1 and myosin2A were identified to be highest in MSC group. 15-decibel loss at 12, 16, 20 and 32 kHz frequencies with CDDP was resolved with MSC administration. Conclusion: MSC prevented hearing loss caused by CDDP without disrupting the antitumor effect of CDDP. Systemic MSC may be assessed for clinical use to reduce the side effects of CDDP.


2022 ◽  
Vol 12 (1) ◽  
pp. 215-220
Author(s):  
Wei Chen ◽  
Juan Jiang ◽  
Yu Wang ◽  
Gang Feng ◽  
Yan Fei ◽  
...  

Bone marrow-derived mesenchymal stem cells (BMSCs) are an integral part of cancer microenvironment. We intend to clarify BMSC-derived exosomes’ role in prostate cancer. The exosomes miR-200c secreted by BMSCs were identified by electron microscopy. The mice tumor model was used to explore the role of miR-200c’s in tumor mice. Cell invasion was assessed by transwell assay and Wnt/β-catenin expression was measured by western blot. Exosomes miR-200c derived from BMSCs promoted tumor cell invasion and activated Wnt/β-catenin signaling. miR-200c targets CTTN-mediated cell signal transduction, and blocking CTTN expression can suppression miR-200c-mediated Wnt/β-catenin signal transduction and inhibit cell invasion. In conclusion, miR-200c regulates CTTN, thereby inducing Wnt/β-catenin signaling to enhance tumor growth.


Blood ◽  
2003 ◽  
Vol 102 (10) ◽  
pp. 3837-3844 ◽  
Author(s):  
Farida Djouad ◽  
Pascale Plence ◽  
Claire Bony ◽  
Philippe Tropel ◽  
Florence Apparailly ◽  
...  

Abstract Mesenchymal stem cells (MSCs) are largely studied for their potential clinical use. Recently, they have gained further interest after demonstration of an immunosuppressive role. In this study, we investigated whether in vivo injection of MSCs could display side effects related to systemic immunosuppression favoring tumor growth. We first showed in vitro that the murine C3H10T1/2 (C3) MSC line and primary MSCs exhibit immunosuppressive properties in mixed lymphocyte reaction. We demonstrated that this effect is mediated by soluble factors, secreted only on “activation” of MSCs in the presence of splenocytes. Moreover, the immunosuppression is mediated by CD8+ regulatory cells responsible for the inhibition of allogeneic lymphocyte proliferation. We then demonstrated that the C3 MSCs expressing the human bone morphogenetic protein 2 (hBMP-2) differentiation factor were not rejected when implanted in various allogeneic immunocompetent mice and were still able to differentiate into bone. Importantly, using a murine melanoma tumor model, we showed that the subcutaneous injection of B16 melanoma cells led to tumor growth in allogeneic recipients only when MSCs were coinjected. Although the potential side effects of immunosuppression induced by MSCs have to be considered in further clinical studies, the usefulness of MSCs for various therapeutic applications still remains of great interest. (Blood. 2003;102:3837-3844)


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