Effect of melanoma cells on proliferation and migration of activated hepatic stellate cells in vitro

Meyer T, Koch A, Ebert EV, Czech B, Mueller M, Boßerhoff AK, Lang SA, Hellerbrand C (2017)


Publication Type: Journal article

Publication year: 2017

Journal

Book Volume: 213

Pages Range: 400-404

Journal Issue: 4

DOI: 10.1016/j.prp.2016.12.014

Abstract

Melanoma is a highly aggressive tumor of the skin. The clinical outcome is determined by the presence or absence of metastases, and the liver is a common site of distant metastases. Hepatic metastasis is causing activation of hepatic stellate cells (HSC), which form the stroma of hepatic metastases and are increasingly recognized as a crucial component of the pro- metastatic liver microenvironment. Most studies have focused on the effects of HSC on (metastasizing) tumor cells. Here, we aimed to analyze functional in vitro effects of conditioned medium (CM) of twelve different human melanoma cell lines on LX2 cells and HSC(htert) cells, two well established human activated HSC cell lines. CM from melanoma cells significantly induced HSC proliferation and acted as chemoattractant for HSC in Boyden chamber assays. The CM effects significantly varied between different HSC as well as melanoma cells. Interestingly, CM from melanoma cell lines derived from melanoma metastases (WM239A, WM9, WM1158, WM1232, 451Lu and 1205Lu) had a stronger effect on proliferation of HSC(htert) cells than CM derived from primary melanoma tumors (SbCl2, WM3211, WM35, WM278, WM1366 and WM793). Moreover, we observed a significant correlation between the chemoattractive effects of CM from the different melanoma cells on HSC(htert) and LX2 cells. In contrast, the melanoma CM effects on the proliferation of the two HSC lines did not show a significant correlation. In summary, our data indicate that melanoma cells metastasizing to the liver have the potential to attract HSC and to induce HSC proliferation, respectively. Still, it appears that melanoma effects on HSC migration and proliferation are mediated via different soluble factors indicating the complexity of melanoma-HSC interaction. Furthermore, the intensity of at least some functional effects varies between different human tumor cells and HSC which may point to mechanisms explaining diverse hepatic metastasis in melanoma patients.

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APA:

Meyer, T., Koch, A., Ebert, E.-V., Czech, B., Mueller, M., Boßerhoff, A.K.,... Hellerbrand, C. (2017). Effect of melanoma cells on proliferation and migration of activated hepatic stellate cells in vitro. Pathology Research and Practice, 213(4), 400-404. https://dx.doi.org/10.1016/j.prp.2016.12.014

MLA:

Meyer, Theresa, et al. "Effect of melanoma cells on proliferation and migration of activated hepatic stellate cells in vitro." Pathology Research and Practice 213.4 (2017): 400-404.

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