Unknown,Transcriptomics,Genomics,Proteomics

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Transcription profiling of human fibroblasts from the stroma of squamous cell carcinoma and normal dermal fibroblasts


ABSTRACT: Head and neck squamous cancer stromal fibroblasts produce growth factors influencing phenotype of normal human keratinocytes. Epithelial-mesenchymal interaction between stromal fibroblasts and cancer cells influences the functional properties of tumor epithelium including the tumor progression and spreading. We compared fibroblasts prepared from stroma of squamous cell carcinoma and normal dermal fibroblasts concerning their biological activity towards normal keratinocytes assessed by immunocytochemistry and profiling of gene activation for growth factors/cytokines by microarray chip technology. IGF-2 and BMP-4 were determined as candidate factors responsible for tumor associated fibroblast activity that influence normal epithelia. This effect was confirmed by addition of recombinant IGF-2 and BMP4 respectively to the culture medium. This hypothesis was also verified by inhibition experiments where blocking antibodies were employed in medium conditioned by cancer associated fibroblast. Presence of these growth factors was also detected in tumor samples.

ORGANISM(S): Homo sapiens

DISEASE(S): normal

SUBMITTER: Michal KolM-^G_ 

PROVIDER: E-MTAB-97 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Head and neck squamous cancer stromal fibroblasts produce growth factors influencing phenotype of normal human keratinocytes.

Strnad Hynek H   Lacina Lukás L   Kolár Michal M   Cada Zdenek Z   Vlcek Cestmír C   Dvoránková Barbora B   Betka Jan J   Plzák Jan J   Chovanec Martin M   Sáchová Jana J   Valach Jaroslav J   Urbanová Markéta M   Smetana Karel K  

Histochemistry and cell biology 20091119 2


Epithelial-mesenchymal interaction between stromal fibroblasts and cancer cells influences the functional properties of tumor epithelium, including the tumor progression and spread. We compared fibroblasts prepared from stroma of squamous cell carcinoma and normal dermal fibroblasts concerning their biological activity toward normal keratinocytes assessed by immunocytochemistry and profiling of gene activation for growth factors/cytokines by microarray chip technology. IGF-2 and BMP-4 were deter  ...[more]

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