Abstract:
:The degradation of basement membranes by tumor cells involves secretion and activation of proteinases, such as the matrix metalloproteinases (MMPs), and results from an imbalance between their inhibitors and activators that are controlled by various growth factors or cytokines, among which TGF-β(1) may be the most intriguing. In order to study the therapeutic effect and molecular mechanism of hyperthermia on aggressive malignant melanoma, the expression levels of TGF-β(1) and Smad4 in B16F10 cells were dynamically analyzed by RT-PCR and western blotting for 24 h after heat treatment, from which time-dependent changes were determined. As expected, the proliferation and invasive ability of B16F10 cells were suppressed strongly by heat treatment. Furthermore, we compared the expression of TGF-β(1) in melanoma mouse models before and after magnetic fluid hyperthermia (MFH) in vivo. After hyperthermia, the tumor growth rate was reduced with a decline in TGF-β(1) protein expression. We conclude that changes in the TGF-β(1) pathway induced by hyperthermia may be an important part of the molecular mechanism involved.
journal_name
Oncol Repjournal_title
Oncology reportsauthors
Jin H,Xie X,Hu B,Gao F,Zhou J,Zhang Y,Du L,Wang X,Zhao L,Zhang X,Shen L,Liao Y,Tang Jdoi
10.3892/or.2012.2128subject
Has Abstractpub_date
2013-02-01 00:00:00pages
725-34issue
2eissn
1021-335Xissn
1791-2431journal_volume
29pub_type
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