CD57 as a prognostic marker in Oral squamous cell carcinoma-A study within the NOROC project
Background: Oral squamous cell carcinoma (OSCC) is a cancer arising from the epithelium lining the oral cavity. Despite improvement in both detection of disease and treatment protocols, the survival has not increased as expected. The survivors of OSCC also report a high grade of debilitating side-ef...
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ftunivtroemsoe:oai:munin.uit.no:10037/33691 2024-06-23T07:55:34+00:00 CD57 as a prognostic marker in Oral squamous cell carcinoma-A study within the NOROC project Warvik, Cathrine Elise 2021-06-01 https://hdl.handle.net/10037/33691 eng eng UiT Norges arktiske universitet UiT The Arctic University of Norway https://hdl.handle.net/10037/33691 Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) Copyright 2021 The Author(s) https://creativecommons.org/licenses/by-nc-sa/4.0 VDP::Medisinske Fag: 700::Basale medisinske odontologiske og veterinærmedisinske fag: 710::Generell patologi patologisk anatomi: 719 VDP::Medical disciplines: 700::Basic medical dental and veterinary science disciplines: 710::General pathology anatomical pathology: 719 MED-3950 Master thesis Mastergradsoppgave 2021 ftunivtroemsoe 2024-06-04T23:54:27Z Background: Oral squamous cell carcinoma (OSCC) is a cancer arising from the epithelium lining the oral cavity. Despite improvement in both detection of disease and treatment protocols, the survival has not increased as expected. The survivors of OSCC also report a high grade of debilitating side-effects of the treatment. Prognosis and choice of treatment is mainly decided by the TNM-status. This classification does not consider the biological processes in the tumor microenvironment. It is thought that with the inclusion of a battery of histopathological markers, the prediction of prognosis and choice of treatment could further improve. This can cause both an increase in survival, as well as a decrease in unwanted side effects of treatment. In this thesis, CD57; an immunohistochemical marker of a subset of cytotoxic NK-cells is assessed as a possible prognostic marker for OSCC. Method: This is a retrospective study of patients included in the Norwegian Oral Cancer Study (NOROC). A subset of 131 patients from the cohort were included. Inclusion criteria were tumor arising from the mobile part of the tongue, tumor tissue available for immunohistological staining and recipient of curative treatment. Tumor tissue samples were sent to the Pathology department at the University Hospital of Northern Norway in Tromsø for CD57 immunohistological staining. The slides were scanned and assessed digitally using the Olympus Olyiva data program. Assessing the marker was done using a hot-spot method, where areas of higher density of CD57 positive cells were scored. CD57 expression was divided in high and low expression groups. Kaplan-Meier analysis was performed to assess association between CD57 expression and disease specific 5-year survival. Results: Patients with a higher density of CD57 positive cells had a higher 5-year survival rate than those with a low density, but the results were not statistically significant. While CD57 is defined as a specific marker for NK-cells, a subset of cells not compatible with NK-cell ... Master Thesis Northern Norway Tromsø University of Tromsø: Munin Open Research Archive Norway Tromsø Meier ENVELOPE(-45.900,-45.900,-60.633,-60.633) Olympus ENVELOPE(156.767,156.767,-80.217,-80.217) TNM ENVELOPE(-58.100,-58.100,-62.000,-62.000) |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Medisinske Fag: 700::Basale medisinske odontologiske og veterinærmedisinske fag: 710::Generell patologi patologisk anatomi: 719 VDP::Medical disciplines: 700::Basic medical dental and veterinary science disciplines: 710::General pathology anatomical pathology: 719 MED-3950 |
spellingShingle |
VDP::Medisinske Fag: 700::Basale medisinske odontologiske og veterinærmedisinske fag: 710::Generell patologi patologisk anatomi: 719 VDP::Medical disciplines: 700::Basic medical dental and veterinary science disciplines: 710::General pathology anatomical pathology: 719 MED-3950 Warvik, Cathrine Elise CD57 as a prognostic marker in Oral squamous cell carcinoma-A study within the NOROC project |
topic_facet |
VDP::Medisinske Fag: 700::Basale medisinske odontologiske og veterinærmedisinske fag: 710::Generell patologi patologisk anatomi: 719 VDP::Medical disciplines: 700::Basic medical dental and veterinary science disciplines: 710::General pathology anatomical pathology: 719 MED-3950 |
description |
Background: Oral squamous cell carcinoma (OSCC) is a cancer arising from the epithelium lining the oral cavity. Despite improvement in both detection of disease and treatment protocols, the survival has not increased as expected. The survivors of OSCC also report a high grade of debilitating side-effects of the treatment. Prognosis and choice of treatment is mainly decided by the TNM-status. This classification does not consider the biological processes in the tumor microenvironment. It is thought that with the inclusion of a battery of histopathological markers, the prediction of prognosis and choice of treatment could further improve. This can cause both an increase in survival, as well as a decrease in unwanted side effects of treatment. In this thesis, CD57; an immunohistochemical marker of a subset of cytotoxic NK-cells is assessed as a possible prognostic marker for OSCC. Method: This is a retrospective study of patients included in the Norwegian Oral Cancer Study (NOROC). A subset of 131 patients from the cohort were included. Inclusion criteria were tumor arising from the mobile part of the tongue, tumor tissue available for immunohistological staining and recipient of curative treatment. Tumor tissue samples were sent to the Pathology department at the University Hospital of Northern Norway in Tromsø for CD57 immunohistological staining. The slides were scanned and assessed digitally using the Olympus Olyiva data program. Assessing the marker was done using a hot-spot method, where areas of higher density of CD57 positive cells were scored. CD57 expression was divided in high and low expression groups. Kaplan-Meier analysis was performed to assess association between CD57 expression and disease specific 5-year survival. Results: Patients with a higher density of CD57 positive cells had a higher 5-year survival rate than those with a low density, but the results were not statistically significant. While CD57 is defined as a specific marker for NK-cells, a subset of cells not compatible with NK-cell ... |
format |
Master Thesis |
author |
Warvik, Cathrine Elise |
author_facet |
Warvik, Cathrine Elise |
author_sort |
Warvik, Cathrine Elise |
title |
CD57 as a prognostic marker in Oral squamous cell carcinoma-A study within the NOROC project |
title_short |
CD57 as a prognostic marker in Oral squamous cell carcinoma-A study within the NOROC project |
title_full |
CD57 as a prognostic marker in Oral squamous cell carcinoma-A study within the NOROC project |
title_fullStr |
CD57 as a prognostic marker in Oral squamous cell carcinoma-A study within the NOROC project |
title_full_unstemmed |
CD57 as a prognostic marker in Oral squamous cell carcinoma-A study within the NOROC project |
title_sort |
cd57 as a prognostic marker in oral squamous cell carcinoma-a study within the noroc project |
publisher |
UiT Norges arktiske universitet |
publishDate |
2021 |
url |
https://hdl.handle.net/10037/33691 |
long_lat |
ENVELOPE(-45.900,-45.900,-60.633,-60.633) ENVELOPE(156.767,156.767,-80.217,-80.217) ENVELOPE(-58.100,-58.100,-62.000,-62.000) |
geographic |
Norway Tromsø Meier Olympus TNM |
geographic_facet |
Norway Tromsø Meier Olympus TNM |
genre |
Northern Norway Tromsø |
genre_facet |
Northern Norway Tromsø |
op_relation |
https://hdl.handle.net/10037/33691 |
op_rights |
Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) Copyright 2021 The Author(s) https://creativecommons.org/licenses/by-nc-sa/4.0 |
_version_ |
1802648209902796800 |