Stromal scoring in advanced colon and rectal cancer: Stroma-rich tumors and their association with aggressive phenotypes

Background: Our aim was to explore relevance of the proportion between neoplastic cell component and tumor-associated stroma in order to assess its association with confirmed aggressive phenotypes of right/left colon and rectum cancers in a large series of patients. Methods: The quantification of st...

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Autores principales: Souza Da Silva Ricella M., Queiroga Eduardo M., de Toledo Osório Cynthia A.B., Cunha Karin S., Dias Eliane P.
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Lenguaje:EN
Publicado: Institute of Oncology, Sremska Kamenica, Serbia 2022
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Acceso en línea:https://doaj.org/article/3d3a8b74cbbe4ddb9e042b2516e0f1b4
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spelling oai:doaj.org-article:3d3a8b74cbbe4ddb9e042b2516e0f1b42021-12-05T18:01:24ZStromal scoring in advanced colon and rectal cancer: Stroma-rich tumors and their association with aggressive phenotypes0354-73101450-952010.2298/AOO210403003Shttps://doaj.org/article/3d3a8b74cbbe4ddb9e042b2516e0f1b42022-01-01T00:00:00Zhttps://scindeks-clanci.ceon.rs/data/pdf/0354-7310/2022/0354-73102201001S.pdfhttps://doaj.org/toc/0354-7310https://doaj.org/toc/1450-9520Background: Our aim was to explore relevance of the proportion between neoplastic cell component and tumor-associated stroma in order to assess its association with confirmed aggressive phenotypes of right/left colon and rectum cancers in a large series of patients. Methods: The quantification of stroma component was performed in patients diagnosed with colorectal adenocarcinoma who underwent surgical resection. The analyzed variables were age, gender, anatomical/pathological features, and tumor-stroma proportion. Tumor-stroma proportion was estimated based on slides used in routine pathology for determination of T status and was described as low, with a stromal percentage ≤50% or high, with a stromal percentage >50%. The tumor-stroma proportion was estimated by two observers, and the inter-observer agreement was assessed. Results: The sample included 390 colorectal adenocarcinoma patients. Stroma-rich tumors were observed in 53.3% of cases. Well-differentiated tumors had the lowest stromal proportions (p = 0.028). Stroma-poor tumors showed less depth of invasion (p<0.001). High stromal content was observed in association with tumor budding, perineural, angiolymphatic, and lymph node involvement, and distant metastasis (p≤0.001). Colorectal adenocarcinoma without lymph node or distant metastasis involvement had lower stromal proportion, while metastatic ones exhibited high stromal content (p <0.001). The inter-rater reliability (concordance) between the estimations of pathologists for tumor-stroma proportions was high (c=0.746). Conclusion: The tumor-stroma proportion in colorectal adenocarcinoma was associated with adverse prognostic factors, reflecting the stage of the disease. Stroma-rich tumors showed a significant correlation with advancement of the disease and its aggressiveness. Due to its availability tumor-stroma proportion evaluation has high application potential and can complement current staging system for colorectal adenocarcinoma.Souza Da Silva Ricella M.Queiroga Eduardo M.de Toledo Osório Cynthia A.B.Cunha Karin S.Dias Eliane P.Institute of Oncology, Sremska Kamenica, Serbiaarticletumor microenvironmenttumor-stroma proportioncolorectal canceradvanced diseaseaggressive phenotypeNeoplasms. Tumors. Oncology. Including cancer and carcinogensRC254-282ENArchive of Oncology, Vol 28, Iss 1, Pp 1-6 (2022)
institution DOAJ
collection DOAJ
language EN
topic tumor microenvironment
tumor-stroma proportion
colorectal cancer
advanced disease
aggressive phenotype
Neoplasms. Tumors. Oncology. Including cancer and carcinogens
RC254-282
spellingShingle tumor microenvironment
tumor-stroma proportion
colorectal cancer
advanced disease
aggressive phenotype
Neoplasms. Tumors. Oncology. Including cancer and carcinogens
RC254-282
Souza Da Silva Ricella M.
Queiroga Eduardo M.
de Toledo Osório Cynthia A.B.
Cunha Karin S.
Dias Eliane P.
Stromal scoring in advanced colon and rectal cancer: Stroma-rich tumors and their association with aggressive phenotypes
description Background: Our aim was to explore relevance of the proportion between neoplastic cell component and tumor-associated stroma in order to assess its association with confirmed aggressive phenotypes of right/left colon and rectum cancers in a large series of patients. Methods: The quantification of stroma component was performed in patients diagnosed with colorectal adenocarcinoma who underwent surgical resection. The analyzed variables were age, gender, anatomical/pathological features, and tumor-stroma proportion. Tumor-stroma proportion was estimated based on slides used in routine pathology for determination of T status and was described as low, with a stromal percentage ≤50% or high, with a stromal percentage >50%. The tumor-stroma proportion was estimated by two observers, and the inter-observer agreement was assessed. Results: The sample included 390 colorectal adenocarcinoma patients. Stroma-rich tumors were observed in 53.3% of cases. Well-differentiated tumors had the lowest stromal proportions (p = 0.028). Stroma-poor tumors showed less depth of invasion (p<0.001). High stromal content was observed in association with tumor budding, perineural, angiolymphatic, and lymph node involvement, and distant metastasis (p≤0.001). Colorectal adenocarcinoma without lymph node or distant metastasis involvement had lower stromal proportion, while metastatic ones exhibited high stromal content (p <0.001). The inter-rater reliability (concordance) between the estimations of pathologists for tumor-stroma proportions was high (c=0.746). Conclusion: The tumor-stroma proportion in colorectal adenocarcinoma was associated with adverse prognostic factors, reflecting the stage of the disease. Stroma-rich tumors showed a significant correlation with advancement of the disease and its aggressiveness. Due to its availability tumor-stroma proportion evaluation has high application potential and can complement current staging system for colorectal adenocarcinoma.
format article
author Souza Da Silva Ricella M.
Queiroga Eduardo M.
de Toledo Osório Cynthia A.B.
Cunha Karin S.
Dias Eliane P.
author_facet Souza Da Silva Ricella M.
Queiroga Eduardo M.
de Toledo Osório Cynthia A.B.
Cunha Karin S.
Dias Eliane P.
author_sort Souza Da Silva Ricella M.
title Stromal scoring in advanced colon and rectal cancer: Stroma-rich tumors and their association with aggressive phenotypes
title_short Stromal scoring in advanced colon and rectal cancer: Stroma-rich tumors and their association with aggressive phenotypes
title_full Stromal scoring in advanced colon and rectal cancer: Stroma-rich tumors and their association with aggressive phenotypes
title_fullStr Stromal scoring in advanced colon and rectal cancer: Stroma-rich tumors and their association with aggressive phenotypes
title_full_unstemmed Stromal scoring in advanced colon and rectal cancer: Stroma-rich tumors and their association with aggressive phenotypes
title_sort stromal scoring in advanced colon and rectal cancer: stroma-rich tumors and their association with aggressive phenotypes
publisher Institute of Oncology, Sremska Kamenica, Serbia
publishDate 2022
url https://doaj.org/article/3d3a8b74cbbe4ddb9e042b2516e0f1b4
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