Cargando…
Fibrosis in metastatic lymph nodes is clinically correlated to poor prognosis in colorectal cancer
BACKGROUND: Tumor microenvironment including fibrosis has a pivotal role in cancer growth and distant metastasis. Fibrosis is a known risk factor for carcinogenesis, but its biological role in disease invasion and metastasis in colorectal cancer (CRC) remains unclear. In particular, there is no repo...
Autores principales: | , , , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Impact Journals LLC
2018
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6049853/ https://www.ncbi.nlm.nih.gov/pubmed/30038705 http://dx.doi.org/10.18632/oncotarget.25636 |
_version_ | 1783340238970552320 |
---|---|
author | Ikuta, Daiji Miyake, Toru Shimizu, Tomoharu Sonoda, Hiromichi Mukaisho, Ken-Ichi Tokuda, Aya Ueki, Tomoyuki Sugihara, Hiroyuki Tani, Masaji |
author_facet | Ikuta, Daiji Miyake, Toru Shimizu, Tomoharu Sonoda, Hiromichi Mukaisho, Ken-Ichi Tokuda, Aya Ueki, Tomoyuki Sugihara, Hiroyuki Tani, Masaji |
author_sort | Ikuta, Daiji |
collection | PubMed |
description | BACKGROUND: Tumor microenvironment including fibrosis has a pivotal role in cancer growth and distant metastasis. Fibrosis is a known risk factor for carcinogenesis, but its biological role in disease invasion and metastasis in colorectal cancer (CRC) remains unclear. In particular, there is no report on how fibrosis of metastatic lymph nodes (MLNs) in CRC contributes to prognosis. METHODS: We reviewed 94 colorectal adenocarcinoma patients with MLNs who underwent colectomy. Both the primary tumors and MLNs were analyzed for alpha-smooth muscle actin (α-SMA) expression and collagen deposition. RESULTS: Higher α-SMA expression and collagen deposition in MLNs were associated with significantly shorter relapse-free survival and overall survival in CRC patients. α-SMA expression in MLNs (HR, 1.53; p = 0.034) was independent predictive factor of overall survival in multivariate Cox proportional hazards regression analysis of clinicopathological factors. In the Stage III patient subgroup, α-SMA expression in MLNs was a strong prognostic marker (HR, 3.01; p = 0.006). On the other hand, higher α-SMA expression and collagen deposition in primary tumors were associated with short overall survival, but they were not significant factors in multivariate Cox regression analyses. In MLNs, the podoplanin signals co-localized with α-SMA expression and were confirmed by the dual immunofluorescence staining, implying that the MLN stromal cells were fibroblastic reticular cells. CONCLUSION: Both high collagen deposition and high α-SMA expression in MLNs predicted poor prognosis in CRC. |
format | Online Article Text |
id | pubmed-6049853 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Impact Journals LLC |
record_format | MEDLINE/PubMed |
spelling | pubmed-60498532018-07-23 Fibrosis in metastatic lymph nodes is clinically correlated to poor prognosis in colorectal cancer Ikuta, Daiji Miyake, Toru Shimizu, Tomoharu Sonoda, Hiromichi Mukaisho, Ken-Ichi Tokuda, Aya Ueki, Tomoyuki Sugihara, Hiroyuki Tani, Masaji Oncotarget Research Paper BACKGROUND: Tumor microenvironment including fibrosis has a pivotal role in cancer growth and distant metastasis. Fibrosis is a known risk factor for carcinogenesis, but its biological role in disease invasion and metastasis in colorectal cancer (CRC) remains unclear. In particular, there is no report on how fibrosis of metastatic lymph nodes (MLNs) in CRC contributes to prognosis. METHODS: We reviewed 94 colorectal adenocarcinoma patients with MLNs who underwent colectomy. Both the primary tumors and MLNs were analyzed for alpha-smooth muscle actin (α-SMA) expression and collagen deposition. RESULTS: Higher α-SMA expression and collagen deposition in MLNs were associated with significantly shorter relapse-free survival and overall survival in CRC patients. α-SMA expression in MLNs (HR, 1.53; p = 0.034) was independent predictive factor of overall survival in multivariate Cox proportional hazards regression analysis of clinicopathological factors. In the Stage III patient subgroup, α-SMA expression in MLNs was a strong prognostic marker (HR, 3.01; p = 0.006). On the other hand, higher α-SMA expression and collagen deposition in primary tumors were associated with short overall survival, but they were not significant factors in multivariate Cox regression analyses. In MLNs, the podoplanin signals co-localized with α-SMA expression and were confirmed by the dual immunofluorescence staining, implying that the MLN stromal cells were fibroblastic reticular cells. CONCLUSION: Both high collagen deposition and high α-SMA expression in MLNs predicted poor prognosis in CRC. Impact Journals LLC 2018-07-03 /pmc/articles/PMC6049853/ /pubmed/30038705 http://dx.doi.org/10.18632/oncotarget.25636 Text en Copyright: © 2018 Ikuta et al. http://creativecommons.org/licenses/by/3.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/) 3.0 (CC BY 3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
spellingShingle | Research Paper Ikuta, Daiji Miyake, Toru Shimizu, Tomoharu Sonoda, Hiromichi Mukaisho, Ken-Ichi Tokuda, Aya Ueki, Tomoyuki Sugihara, Hiroyuki Tani, Masaji Fibrosis in metastatic lymph nodes is clinically correlated to poor prognosis in colorectal cancer |
title | Fibrosis in metastatic lymph nodes is clinically correlated to poor prognosis in colorectal cancer |
title_full | Fibrosis in metastatic lymph nodes is clinically correlated to poor prognosis in colorectal cancer |
title_fullStr | Fibrosis in metastatic lymph nodes is clinically correlated to poor prognosis in colorectal cancer |
title_full_unstemmed | Fibrosis in metastatic lymph nodes is clinically correlated to poor prognosis in colorectal cancer |
title_short | Fibrosis in metastatic lymph nodes is clinically correlated to poor prognosis in colorectal cancer |
title_sort | fibrosis in metastatic lymph nodes is clinically correlated to poor prognosis in colorectal cancer |
topic | Research Paper |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6049853/ https://www.ncbi.nlm.nih.gov/pubmed/30038705 http://dx.doi.org/10.18632/oncotarget.25636 |
work_keys_str_mv | AT ikutadaiji fibrosisinmetastaticlymphnodesisclinicallycorrelatedtopoorprognosisincolorectalcancer AT miyaketoru fibrosisinmetastaticlymphnodesisclinicallycorrelatedtopoorprognosisincolorectalcancer AT shimizutomoharu fibrosisinmetastaticlymphnodesisclinicallycorrelatedtopoorprognosisincolorectalcancer AT sonodahiromichi fibrosisinmetastaticlymphnodesisclinicallycorrelatedtopoorprognosisincolorectalcancer AT mukaishokenichi fibrosisinmetastaticlymphnodesisclinicallycorrelatedtopoorprognosisincolorectalcancer AT tokudaaya fibrosisinmetastaticlymphnodesisclinicallycorrelatedtopoorprognosisincolorectalcancer AT uekitomoyuki fibrosisinmetastaticlymphnodesisclinicallycorrelatedtopoorprognosisincolorectalcancer AT sugiharahiroyuki fibrosisinmetastaticlymphnodesisclinicallycorrelatedtopoorprognosisincolorectalcancer AT tanimasaji fibrosisinmetastaticlymphnodesisclinicallycorrelatedtopoorprognosisincolorectalcancer |