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Prognostic Relevanc...
Prognostic Relevance of Survivin in Pancreatic Endocrine Tumors
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- Ekeblad, Sara (författare)
- Uppsala universitet,Institutionen för medicinska vetenskaper,Endokrin tumörbiologi
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- Halin Lejonklou, Margareta (författare)
- Uppsala universitet,Institutionen för medicinska vetenskaper,Endokrin tumörbiologi
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- Stålberg, Peter (författare)
- Uppsala universitet,Endokrinkirurgi
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- Skogseid, Britt (författare)
- Uppsala universitet,Institutionen för medicinska vetenskaper,Endokrin tumörbiologi
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(creator_code:org_t)
- 2011-11-17
- 2012
- Engelska.
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Ingår i: World Journal of Surgery. - : Springer Science and Business Media LLC. - 0364-2313 .- 1432-2323. ; 36:6, s. 1411-1418
- Relaterad länk:
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https://link.springe...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- BACKGROUND: Better prognostic markers are needed for pancreatic endocrine tumors. Survivin is an apoptosis inhibitor that is suggested to have a negative prognostic impact in several tumor types. Contradictory data exist, especially regarding the significance of a nuclear versus cytoplasmic location of survivin. The prognostic relevance of nuclear and cytoplasmic survivin expression in pancreatic endocrine tumors-controlled for the tumor Ki-67 index, World Health Organization classification, and TNM stage-was investigated. METHODS: A total of 111 patients treated at a tertiary referral center were retrospectively evaluated. Clinical data were gathered from medical records. Immunohistochemistry for survivin and Ki-67 was performed on paraffin-embedded tissue. Univariate and multivariate Cox analyses were performed. RESULTS: Patients with tumors that had <5% survivin-positive nuclei had a mean survival of 225 months [95% confidence interval (CI) 168-281]. The corresponding figure for patients with 5 to 50% survivin-positive tumor cell nuclei was 101 months [95% CI 61-140; hazard ratio (HR) 2.4; P < 0.01) and with >50% survivin-positive nuclei 47 months (95% CI 24-71; HR 4.9; P < 0.001). Nuclear survivin expression in >50% of the tumor cells was an independent marker of a poor prognosis (HR 5.7; P < 0.01). Cytoplasmic survivin was not a significant prognostic factor in the multivariate analysis (HR 0.94; P = 0.90). CONCLUSIONS: High expression of nuclear survivin is a significant marker of a poor prognosis in patients with a pancreatic endocrine tumor.
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- ref (ämneskategori)
- art (ämneskategori)
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