Tumor budding as an indicator of prognosis in locally advanced rectal cancer after neoadjuvant chemoradiotherapy: a systematic review and meta-analysis

IntroductionTumor budding (TB) is recognized as a complementary prognostic factor for colorectal cancer. However, data on its impact on the survival of patients undergoing neoadjuvant chemoradiotherapy (nCRT) remain limited. This study aims to investigate the role of TB in disease-free survival (DFS...

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Main Authors: Azita Rafiee, Parto Nasri, Afshin Moradi, Paridokht Karimian
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-04-01
Series:Frontiers in Oncology
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Online Access:https://www.frontiersin.org/articles/10.3389/fonc.2025.1429319/full
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author Azita Rafiee
Parto Nasri
Afshin Moradi
Paridokht Karimian
author_facet Azita Rafiee
Parto Nasri
Afshin Moradi
Paridokht Karimian
author_sort Azita Rafiee
collection DOAJ
description IntroductionTumor budding (TB) is recognized as a complementary prognostic factor for colorectal cancer. However, data on its impact on the survival of patients undergoing neoadjuvant chemoradiotherapy (nCRT) remain limited. This study aims to investigate the role of TB in disease-free survival (DFS) and overall survival (OS) among patients with locally advanced rectal cancer receiving nCRT.MethodsIn this systematic review and meta-analysis, an exhaustive search of the PubMed, Scopus, Web of Science (WOS), Embase, and Cochrane databases was conducted, ultimately leading to the extraction of eight studies in the qualitative assessment and meta-analysis.ResultsAll the included studies were of high quality. The total sample size comprised 1,941 individuals. Although eight studies were included, nine datasets were extracted, as some studies reported multiple outcome measurements. TB positivity was statistically associated with decreased overall survival of 3.24 (95% confidence interval [CI]: 1.71–6.16) and disease-free survival of 2.54 (95% CI: 1.56–4.15) in patients with locally advanced rectal cancer undergoing nCRT.DiscussionBased on the findings of this study, TB negativity was statistically and directly associated with better OS and DFS in patients with locally advanced rectal cancer undergoing nCRT.
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publisher Frontiers Media S.A.
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spelling doaj-art-ceb5937ac8624c1a9849d2db79e132ce2025-08-20T03:06:13ZengFrontiers Media S.A.Frontiers in Oncology2234-943X2025-04-011510.3389/fonc.2025.14293191429319Tumor budding as an indicator of prognosis in locally advanced rectal cancer after neoadjuvant chemoradiotherapy: a systematic review and meta-analysisAzita Rafiee0Parto Nasri1Afshin Moradi2Paridokht Karimian3Department of Pathology, Iranian Medical and Pathology Laboratory, Zahedan, IranDepartment of Pathology, Isfahan University of Medical Sciences, Isfahan, IranCancer Research Center, Shahid Beheshti University of Medical Sciences, Tehran, IranDepartment of Pathology, School of Medicine, Guilan University of Medical Sciences, Rasht, IranIntroductionTumor budding (TB) is recognized as a complementary prognostic factor for colorectal cancer. However, data on its impact on the survival of patients undergoing neoadjuvant chemoradiotherapy (nCRT) remain limited. This study aims to investigate the role of TB in disease-free survival (DFS) and overall survival (OS) among patients with locally advanced rectal cancer receiving nCRT.MethodsIn this systematic review and meta-analysis, an exhaustive search of the PubMed, Scopus, Web of Science (WOS), Embase, and Cochrane databases was conducted, ultimately leading to the extraction of eight studies in the qualitative assessment and meta-analysis.ResultsAll the included studies were of high quality. The total sample size comprised 1,941 individuals. Although eight studies were included, nine datasets were extracted, as some studies reported multiple outcome measurements. TB positivity was statistically associated with decreased overall survival of 3.24 (95% confidence interval [CI]: 1.71–6.16) and disease-free survival of 2.54 (95% CI: 1.56–4.15) in patients with locally advanced rectal cancer undergoing nCRT.DiscussionBased on the findings of this study, TB negativity was statistically and directly associated with better OS and DFS in patients with locally advanced rectal cancer undergoing nCRT.https://www.frontiersin.org/articles/10.3389/fonc.2025.1429319/fullrectal neoplasmneoadjuvant therapytumor buddingprognosiscolon cancer
spellingShingle Azita Rafiee
Parto Nasri
Afshin Moradi
Paridokht Karimian
Tumor budding as an indicator of prognosis in locally advanced rectal cancer after neoadjuvant chemoradiotherapy: a systematic review and meta-analysis
Frontiers in Oncology
rectal neoplasm
neoadjuvant therapy
tumor budding
prognosis
colon cancer
title Tumor budding as an indicator of prognosis in locally advanced rectal cancer after neoadjuvant chemoradiotherapy: a systematic review and meta-analysis
title_full Tumor budding as an indicator of prognosis in locally advanced rectal cancer after neoadjuvant chemoradiotherapy: a systematic review and meta-analysis
title_fullStr Tumor budding as an indicator of prognosis in locally advanced rectal cancer after neoadjuvant chemoradiotherapy: a systematic review and meta-analysis
title_full_unstemmed Tumor budding as an indicator of prognosis in locally advanced rectal cancer after neoadjuvant chemoradiotherapy: a systematic review and meta-analysis
title_short Tumor budding as an indicator of prognosis in locally advanced rectal cancer after neoadjuvant chemoradiotherapy: a systematic review and meta-analysis
title_sort tumor budding as an indicator of prognosis in locally advanced rectal cancer after neoadjuvant chemoradiotherapy a systematic review and meta analysis
topic rectal neoplasm
neoadjuvant therapy
tumor budding
prognosis
colon cancer
url https://www.frontiersin.org/articles/10.3389/fonc.2025.1429319/full
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