ArticleJournal of cancer research and clinical oncology2003
Different apoptotic activity and p21(WAF1/CIP1), but not p27(Kip1), expression in serrated adenomas as compared with traditional adenomas and hyperplastic polyps of the colorectum.
Article in Journal of cancer research and clinical oncology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
6 citing papers in PubMed, 17 citations in OpenAlex.
- Differential Expression of MicroRNAs in the Colorectal Serrated Neoplasia Pathway and Adenoma-Carcinoma Sequence.Gastroenterology research and practice · 2025Article
- Proliferation, apoptosis and their regulatory protein expression in colorectal adenomas and serrated lesions.PloS one · 2021Article
- A significant imbalance in mitosis versus apoptosis accelerates the growth rate of sessile serrated adenoma/polyps.Virchows Archiv : an international journal of pathology · 2013Article
- Up-regulation of c-MYC and SIRT1 expression correlates with malignant transformation in the serrated route to colorectal cancer.Oncotarget · 2012Article
- Article
- Nomenclature, molecular genetics and clinical significance of the precursor lesions in the serrated polyp pathway of colorectal carcinoma.International journal of clinical and experimental pathology · 2008Article
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Authors and funding
9 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeSerrated adenomas (SAs), which include a wide spectrum of lesions, can be broadly divided into two subtypes: type I, closely mimicking hyperplastic polyps (HPs), and type II, unequivocal adenomatous tumor. Our preliminary findings showed clinicopathologic differences between them. The present study was conducted to investigate apoptotic activity and expression of the cell cycle regulator proteins p21(WAF1/CIP1) and p27(Kip1) in type I and II SAs, as compared with traditional adenomas (TAs) and HPs.
methodsApoptotic activity was estimated in hematoxylin-eosin stained specimens, and p21(WAF1/CIP1) or p27(Kip1) immunoreactivity was determined in 62 SAs (19 type I and 43 type II), 50 TAs and 19 HPs. The numbers (percentages) of apoptotic or immunoreactive cells were counted per 1,000 epithelial cells in equally separated crypt zones (upper, middle, and lower thirds).
resultsThe apoptotic activity in the middle, but not the upper or lower crypt zone was higher in type II SAs (median 0.2%, interquartile range 0.1-0.5%) than in HPs (0.1%, 0.1-0.2%, P<0.01), whereas it was lower in type I SAs (0.2%, 0.1-0.3%) than in TAs (0.5%, 0.2-0.6%, P<0.001). P21(WAF1/CIP1) expression in the lower crypt zone was higher in both type I and type II SAs (19.8%, 7.0-33.2% and 20.4%, 3.9-47.8%, P<0.0001) than in TAs (1.2%, 0.6-5.2%), and a similar tendency was also observed for the middle crypt zone. p27(Kip1) expression did not vary among the groups.
conclusionsThe differences in apoptotic activity and p21(WAF1/CIP1) expression between SAs and TAs or HPs indicate that SA should be considered as a distinct subtype of colorectal neoplasm. The two subtypes of SA do not differ in these parameters despite specific clinicopathological features.
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