Activation of protein kinase C-α isoform in murine melanoma cells with high metastatic potential
Activation of protein kinase C-α isoform in murine melanoma cells with high metastatic potential
复制标题
高转移潜能小鼠黑色素瘤细胞中蛋白激酶 C-α 亚型的激活
DOI:
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发表时间:
1997
影响因子:
4
通讯作者:
R. Comolli
中科院分区:
文献类型:
--
作者:
C. L. La Porta;R. Comolli
AbstractMetastasis is a multistep process in which protein kinase C (PKC) appears to be significantly involved. We analysed the activity and expression of classical (α, β, γ) and novel PKC
$$ \in $$
isoforms in B16-F1 and B16-BL6 melanoma cells maintained under different culture conditions in vitro. We used high and low concentrations of tyrosine and phenylalanine in different media (DMEM or RPMI 1640 respectively) that affect the metastatic potential and also the proliferative capacity of the cells. We also tested a weakly metastatic amelanotic B78-H1 melanoma cell line which is unaffected by the different culture conditions. In both B16 melanoma cell lines activation of PKC α (without increased expression) occurred under growth conditions permissive of metastasis (DMEM). In contrast, the weakly metastatic amelanotic B78-H1 cell line showed a substantial inactivation of this isoform in the two different culture media, suggesting a specific involvement of PKC α in the metastatic process. Moreover, in B16 melanoma cells, novel PKC
$$ \in $$
was activated under culture conditions which stimulated growth but not metastasis (RPMI 1640). In order to define the relationship between PKC activation and the metastatic process we also determined the release of cathepsin B. No correlation between PKC activity and cathepsin B release in either B16 melanoma cell lines could be demonstrated.
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影响因子:
11.2
作者:
I. Fidler
通讯作者:
I. Fidler
DOI:
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发表时间:
1995
期刊:
Cell growth & differentiation : the molecular biology journal of the American Association for Cancer Research
影响因子:
--
作者:
Atkins,KB;Troen,BR
通讯作者:
Troen,BR
影响因子:
11.2
作者:
Arita,Y;O'Driscoll,KR;Weinstein,IB
通讯作者:
Weinstein,IB
DOI:
--
发表时间:
1987
期刊:
Journal of the National Cancer Institute
影响因子:
--
作者:
Abdallah,RM;Starkey,JR;Meadows,GG
通讯作者:
Meadows,GG
影响因子:
--
作者:
Elstad,CA;Meadows,GG;Aslakson,CJ;Starkey,JR
通讯作者:
Starkey,JR