id:"swepub:oai:DiVA.org:liu-25466"
Sökning: id:"swepub:oai:DiVA.org:liu-25466" > Loss of p27 express...
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- Zhang, Hong,1957-Linköpings universitet,Hälsouniversitetet,Dermatologi (författare)
Loss of p27 expression predicts poor prognosis in patients with Dukes' B stage or proximal colorectal cancer.
- Artikel/kapitelEngelska2001
Förlag, utgivningsår, omfång ...
- 2001
- printrdacarrier
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- LIBRIS-ID:oai:DiVA.org:liu-25466
- https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-25466URI
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- Språk:engelska
- Sammanfattning på:engelska
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- p27 is a cyclin-dependent kinase inhibitor which regulates progression of cells from G1 into S phase in a cell cycle. Loss of the negative regulator may contribute to oncogenesis and tumor progression. The aim of this study was to examine p27 expression in normal mucosa, primary and metastatic tumors from patients with colorectal adenocarcinomas and to analyze association of p27 with patient survival and clinicopathological variables. p27 expression was estimated by immunohistochemistry in 178 primary colorectal cancers, 34 lymph node metastases and 48 normal mucosa samples from patients with colorectal adenocarcinoma. Associations of p27 with patient survival, clinicopathological characteristics and expression of p53, p73 and DCC were analyzed. Loss of p27 was found in 51% of primary tumors, 68% of metastases and 56% of normal samples. The intensity of p27 staining was similar in the matched primary tumor, metastasis and normal mucosa. In patients with Dukes' B or with proximal tumors, the loss of p27 predicted poorer prognosis (p = 0.03 and p = 0.05, respectively). However, there were no significant differences in the patients with other individual Dukes' stage or distal tumors. No relationships were found between p27 and patients' gender, age, tumor location, growth pattern and expression of p53, p73 and DCC (p > 0.05). The data suggest that loss of p27 was associated with poor prognosis in patients with Dukes' B tumor or those with proximal tumor. p27 might be a useful marker to identify the more progressive tumors in these groups.
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- MEDICINE
- MEDICIN
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- Sun, Xiao-Feng,1959-Linköpings universitet,Hälsouniversitetet,Onkologi(Swepub:liu)xiasu45 (författare)
- Linköpings universitetHälsouniversitetet (creator_code:org_t)
Sammanhörande titlar
- Ingår i:International Journal of Oncology19:1, s. 49-521019-64391791-2423
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