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RAD50/MRE11/NBS1 pr...
RAD50/MRE11/NBS1 proteins in relation to tumour development and prognosis in patients with microsatellite stable colorectal cancer
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- Gao, Jingfang (författare)
- Linköpings universitet,Onkologi,Hälsouniversitetet
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- Zhang, Hong (författare)
- Högskolan i Skövde,Institutionen för vård och natur,Forskningscentrum för Systembiologi,Division of Biomedicine, School of Life Science, Skövde University, Skövde, Sweden
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- Arbman, Gunnar (författare)
- Linköpings universitet,Kirurgi,Hälsouniversitetet
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- Sun, Xiao-Feng (författare)
- Linköpings universitet,Onkologi,Hälsouniversitetet
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(creator_code:org_t)
- Histology and Histopathology, 2008
- 2008
- Engelska.
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Ingår i: Histology and Histopathology. - : Histology and Histopathology. - 0213-3911 .- 1699-5848. ; 23:12, s. 1495-1502
- Relaterad länk:
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http://www.hh.um.es/...
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http://urn.kb.se/res...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- RAD50/MRE11/NBS1 complex is essential for DNA double-strand break repair and for maintaining genomic integrity. In this study, we immunohistochemically examined MRE11, NBS1 and RAD50 expression in primary CRCs (n = 208), the corresponding distant (n= 41) and adjacent normal mucosa ( n= 130), and lymph node metastases ( n= 26), and investigated their clinicopathological significance in colorectal cancers ( CRCs). We found that the intensity and percentage of MRE11 and NBS1 in primary CRCs were positively correlated with each other and with RAD50 (P < 0.0001). Strong expression of MRE11, NBS1 or combined RAD50/MRE11/NBS1 was related to MSS, positive hMLH1 expression, earlier tumour stage (TNM stage I and II) and favourable survival (P < 0.05). A high percentage of MRE11 expression was associated with less local recurrence and high apoptotic activity (P < 0.05). In MSS CRCs, the expression of MRE11 and NBS1 was stronger than that in normal mucosa (P < 0.05), and strong expression of NBS1 in primary tumour was related to favourable survival of patients in TNM stage I and II (univariate analysis: P = 0.03; multivariate analysis: P = 0.07). In MSI CRCs, neither MRE11 nor NBS1 expression showed differences among normal mucosa, primary tumour and metastasis, or among clinicopathological variables. In conclusion, RAD50/MRE11/NBS1 proteins interacted with each other, which had different clinicopathological significance in MSS and MSI CRCs, and further, each component of the complex might have additional roles. NBS1 might be a prognostic factor for patients with MSS tumour in TNM stage I and II.
Nyckelord
- RAD50
- MRE11
- NBS1
- Prognosis
- Colorectal cancer
- Medical sciences
- Medicin
- MEDICINE
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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