Abstract:
:The initiation and progression of various types of tumors, such as lung neoplasms, are driven by a population of cells with stem cell properties and their microenvironment. Bone marrow mesenchymal stem cells (BM-MSCs) in long-term in vitro culture may exhibit spontaneous changes in stem cell biological properties, including malignant transformations; however, the molecular mechanisms of this have not been fully elucidated. In the present study, a BM-MSC and lung cancer A549 cell co-culture system was utilized to investigate how the tumor microenvironment may spontaneously change the proliferation, migration and differentiation of BM-MSCs. It was demonstrated that the lung cancer A549 microenvironment is able to induce changes in the cell morphology, proliferation, karyotype, cytoskeleton and migration ability of BM-MSCs in vitro. Compared with the control group BM-MSCs, the expression of Ras, phosphorylated-extracellular regulated protein kinases, nuclear factor-κB, P62 and B-cell lymphoma 2 (Bcl-2) proteins in groups of co-cultured BM-MSCs increased significantly (P<0.05) and the expression of P53, Bcl-2 associated X protein and caspase-3 protein decreased significantly (P<0.05). The mechanisms responsible for the changes observed in BM-MSCs may be related to abnormal expression of related genes in the ERK signaling pathway.
journal_name
Exp Ther Medjournal_title
Experimental and therapeutic medicineauthors
Zhang YM,Zhang ZM,Guan QL,Liu YQ,Wu ZW,Li JT,Su Y,Yan CL,Luo YL,Qin J,Wang Q,Xie XDdoi
10.3892/etm.2017.4909subject
Has Abstractpub_date
2017-10-01 00:00:00pages
2983-2991issue
4eissn
1792-0981issn
1792-1015pii
ETM-0-0-4909journal_volume
14pub_type
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