Transcriptional profile of fibroblasts obtained from the primary site, lymph node and bone marrow of breast cancer patients
Cancer-associated fibroblasts (CAF) influence tumor development at primary as well as in metastatic sites, but there have been no direct comparisons of the transcriptional profiles of stromal cells from different tumor sites. In this study, we used customized cDNA microarrays to compare the gene exp...
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2014-09-01
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doaj-a8858a76469b47ef9a39ad9657c69d152020-11-25T01:25:19ZengSociedade Brasileira de GenéticaGenetics and Molecular Biology1678-46852014-09-0137348048910.1590/S1415-47572014000400002S1415-47572014000400002Transcriptional profile of fibroblasts obtained from the primary site, lymph node and bone marrow of breast cancer patientsPaulo Roberto Del Valle0Cintia Milani1Maria Mitzi Brentani2Maria Lucia Hirata Katayama3Eduardo Carneiro de Lyra4Dirce Maria Carraro5Helena Brentani6Renato Puga7Leandro A. Lima8Patricia Bortman Rozenchan9Bárbara dos Santos Nunes10João Carlos Guedes Sampaio Góes11Maria Aparecida Azevedo Koike Folgueira12Universidade de São PauloUniversidade de São PauloUniversidade de São PauloUniversidade de São PauloInstituto Brasileiro do Controle do CâncerHospital A. C. CamargoUniversidade de São PauloHospital A. C. CamargoHospital A. C. CamargoUniversidade de São PauloUniversidade de São PauloInstituto Brasileiro do Controle do CâncerUniversidade de São PauloCancer-associated fibroblasts (CAF) influence tumor development at primary as well as in metastatic sites, but there have been no direct comparisons of the transcriptional profiles of stromal cells from different tumor sites. In this study, we used customized cDNA microarrays to compare the gene expression profile of stromal cells from primary tumor (CAF, n = 4), lymph node metastasis (N+, n = 3) and bone marrow (BM, n = 4) obtained from breast cancer patients. Biological validation was done in another 16 samples by RT-qPCR. Differences between CAF vs N+, CAF vs BM and N+ vs BM were represented by 20, 235 and 245 genes, respectively (SAM test, FDR < 0.01). Functional analysis revealed that genes related to development and morphogenesis were overrepresented. In a biological validation set, NOTCH2 was confirmed to be more expressed in N+ (vs CAF) and ADCY2, HECTD1, HNMT, LOX, MACF1, SLC1A3 and USP16 more expressed in BM (vs CAF). Only small differences were observed in the transcriptional profiles of fibroblasts from the primary tumor and lymph node of breast cancer patients, whereas greater differences were observed between bone marrow stromal cells and the other two sites. These differences may reflect the activities of distinct differentiation programs.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572014000400002&lng=en&tlng=enbone marrowbreast neoplasmfibroblastgene expression profilinglymph nodemesenchymal stromal cellstumor microenvironment |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Paulo Roberto Del Valle Cintia Milani Maria Mitzi Brentani Maria Lucia Hirata Katayama Eduardo Carneiro de Lyra Dirce Maria Carraro Helena Brentani Renato Puga Leandro A. Lima Patricia Bortman Rozenchan Bárbara dos Santos Nunes João Carlos Guedes Sampaio Góes Maria Aparecida Azevedo Koike Folgueira |
spellingShingle |
Paulo Roberto Del Valle Cintia Milani Maria Mitzi Brentani Maria Lucia Hirata Katayama Eduardo Carneiro de Lyra Dirce Maria Carraro Helena Brentani Renato Puga Leandro A. Lima Patricia Bortman Rozenchan Bárbara dos Santos Nunes João Carlos Guedes Sampaio Góes Maria Aparecida Azevedo Koike Folgueira Transcriptional profile of fibroblasts obtained from the primary site, lymph node and bone marrow of breast cancer patients Genetics and Molecular Biology bone marrow breast neoplasm fibroblast gene expression profiling lymph node mesenchymal stromal cells tumor microenvironment |
author_facet |
Paulo Roberto Del Valle Cintia Milani Maria Mitzi Brentani Maria Lucia Hirata Katayama Eduardo Carneiro de Lyra Dirce Maria Carraro Helena Brentani Renato Puga Leandro A. Lima Patricia Bortman Rozenchan Bárbara dos Santos Nunes João Carlos Guedes Sampaio Góes Maria Aparecida Azevedo Koike Folgueira |
author_sort |
Paulo Roberto Del Valle |
title |
Transcriptional profile of fibroblasts obtained from the primary site, lymph node and bone marrow of breast cancer patients |
title_short |
Transcriptional profile of fibroblasts obtained from the primary site, lymph node and bone marrow of breast cancer patients |
title_full |
Transcriptional profile of fibroblasts obtained from the primary site, lymph node and bone marrow of breast cancer patients |
title_fullStr |
Transcriptional profile of fibroblasts obtained from the primary site, lymph node and bone marrow of breast cancer patients |
title_full_unstemmed |
Transcriptional profile of fibroblasts obtained from the primary site, lymph node and bone marrow of breast cancer patients |
title_sort |
transcriptional profile of fibroblasts obtained from the primary site, lymph node and bone marrow of breast cancer patients |
publisher |
Sociedade Brasileira de Genética |
series |
Genetics and Molecular Biology |
issn |
1678-4685 |
publishDate |
2014-09-01 |
description |
Cancer-associated fibroblasts (CAF) influence tumor development at primary as well as in metastatic sites, but there have been no direct comparisons of the transcriptional profiles of stromal cells from different tumor sites. In this study, we used customized cDNA microarrays to compare the gene expression profile of stromal cells from primary tumor (CAF, n = 4), lymph node metastasis (N+, n = 3) and bone marrow (BM, n = 4) obtained from breast cancer patients. Biological validation was done in another 16 samples by RT-qPCR. Differences between CAF vs N+, CAF vs BM and N+ vs BM were represented by 20, 235 and 245 genes, respectively (SAM test, FDR < 0.01). Functional analysis revealed that genes related to development and morphogenesis were overrepresented. In a biological validation set, NOTCH2 was confirmed to be more expressed in N+ (vs CAF) and ADCY2, HECTD1, HNMT, LOX, MACF1, SLC1A3 and USP16 more expressed in BM (vs CAF). Only small differences were observed in the transcriptional profiles of fibroblasts from the primary tumor and lymph node of breast cancer patients, whereas greater differences were observed between bone marrow stromal cells and the other two sites. These differences may reflect the activities of distinct differentiation programs. |
topic |
bone marrow breast neoplasm fibroblast gene expression profiling lymph node mesenchymal stromal cells tumor microenvironment |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572014000400002&lng=en&tlng=en |
work_keys_str_mv |
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