Expression of interleukin-8 detected by in situ hybridization correlates with worse prognosis in primary cutaneous melanoma
Previous in vitro studies have demonstrated that endogenously produced human interleukin-8 (IL-8) can act as an important growth factor for human melanoma cells in vitro. The present study, has investigated whether IL-8 mRNA expression in primary melanomas may be of prognostic relevance with regard...
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| Main Authors: | , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
11 January 2000
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| In: |
The journal of pathology
Year: 1999, Volume: 189, Issue: 4, Pages: 546-551 |
| ISSN: | 1096-9896 |
| DOI: | 10.1002/(SICI)1096-9896(199912)189:4<546::AID-PATH487>3.0.CO;2-L |
| Online Access: | Verlag, Volltext: http://dx.doi.org/10.1002/(SICI)1096-9896(199912)189:4<546::AID-PATH487>3.0.CO;2-L Verlag, Volltext: https://onlinelibrary.wiley.com/doi/abs/10.1002/%28SICI%291096-9896%28199912%29189%3A4%3C546%3A%3AAID-PATH487%3E3.0.CO%3B2-L 
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| Author Notes: | Wolf Nürnberg, Dirk Tobias, Friederich Otto, Beate M. Henz and Dirk Schadendorf |
MARC
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| 245 | 1 | 0 | |a Expression of interleukin-8 detected by in situ hybridization correlates with worse prognosis in primary cutaneous melanoma |c Wolf Nürnberg, Dirk Tobias, Friederich Otto, Beate M. Henz and Dirk Schadendorf |
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| 520 | |a Previous in vitro studies have demonstrated that endogenously produced human interleukin-8 (IL-8) can act as an important growth factor for human melanoma cells in vitro. The present study, has investigated whether IL-8 mRNA expression in primary melanomas may be of prognostic relevance with regard to melanoma progression and metastatic spread. In order to evaluate the clinical significance of IL-8 mRNA expression of melanoma cells in vivo, 59 melanocytic tissue specimens (37 primary melanomas and 22 melanocytic naevi) were studied using a semiquantitative in situ hybridization technique. Significant mRNA expression of IL-8 was found in 59 per cent (22/37) of melanomas. In 19 per cent (7/37) of the malignant melanomas, additional hybridization signals were noted within keratinocytes of the overlying epidermis. In contrast, paralesional normal-appearing epidermis and melanocytes in non-malignant lesions (melanocytic naevi) showed no IL-8 mRNA. Analysis of the relationship between IL-8 expression and clinico-histopathological features showed a significant association between IL-8 mRNA expression and the histological melanoma subtype (IL-8 mRNA: 14/19 in superficial spreading melanoma versus 4/12 in nodular melanoma, p< 0·05). Furthermore, IL-8 expression in primary tumours could be correlated with the patients' clinical course, with time to progression being significantly reduced in primary tumours expressing IL-8 in either the tumour cells or keratinocytes of the overlying epidermis. These results demonstrate for the first time that IL-8 expression, as detected by in situ hybridization in primary tumours, may serve as a significant prognostic factor for tumour progression in human malignant melanoma. | ||
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