Laminin and biomimetic extracellular elasticity enhance functional differentiation in mammary epithelia.
Laminin and biomimetic extracellular elasticity enhance functional differentiation in mammary epithelia.
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层粘连蛋白和仿生细胞外弹性增强了乳腺上皮的功能分化。
DOI:
10.1038/emboj.2008.206
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发表时间:
2008-11-05
期刊:
影响因子:
11.4
通讯作者:
Bissell, Mina J.
中科院分区:
文献类型:
--
作者:
Alcaraz, Jordi;Xu, Ren;Mori, Hidetoshi;Nelson, Celeste M.;Mroue, Rana;Spencer, Virginia A.;Brownfield, Doug;Radisky, Derek C.;Bustamante, Carlos;Bissell, Mina J.
In the mammary gland, epithelial cells are embedded in a ‘soft' environment and become functionally differentiated in culture when exposed to a laminin-rich extracellular matrix gel. Here, we define the processes by which mammary epithelial cells integrate biochemical and mechanical extracellular cues to maintain their differentiated phenotype. We used single cells cultured on top of gels in conditions permissive for β-casein expression using atomic force microscopy to measure the elasticity of the cells and their underlying substrata. We found that maintenance of β-casein expression required both laminin signalling and a ‘soft' extracellular matrix, as is the case in normal tissues in vivo, and biomimetic intracellular elasticity, as is the case in primary mammary epithelial organoids. Conversely, two hallmarks of breast cancer development, stiffening of the extracellular matrix and loss of laminin signalling, led to the loss of β-casein expression and non-biomimetic intracellular elasticity. Our data indicate that tissue-specific gene expression is controlled by both the tissues' unique biochemical milieu and mechanical properties, processes involved in maintenance of tissue integrity and protection against tumorigenesis.
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DOI:
10.1083/jcb.200601059
发表时间:
2006-06-05
期刊:
The Journal of cell biology
影响因子:
--
作者:
Akhtar N;Streuli CH
通讯作者:
Streuli CH
影响因子:
3.4
作者:
Engler, A;Bacakova, L;Discher, D
通讯作者:
Discher, D
影响因子:
3.4
作者:
Alcaraz, J;Buscemi, L;Navajas, D
通讯作者:
Navajas, D
DOI:
10.1073/pnas.91.26.12378
发表时间:
1994-12-20
影响因子:
11.1
作者:
ROSKELLEY, CD;DESPREZ, PY;BISSELL, MJ
通讯作者:
BISSELL, MJ
DOI:
10.1083/jcb.200405004
发表时间:
2004-09-13
期刊:
The Journal of cell biology
影响因子:
--
作者:
Engler AJ;Griffin MA;Sen S;Bönnemann CG;Sweeney HL;Discher DE
通讯作者:
Discher DE