| 1. |
- Dahlgren, Liselotte, et al.
(författare)
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Differences in human papillomavirus type may influence clinical outcome in early stage cervical cancer.
- 2006
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Ingår i: Anticancer Research. - 0250-7005 .- 1791-7530. ; 26:2A, s. 829-32
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: The presence of human papillomavirus (HPV), the HPV type and viral load in early stage cervical carcinoma were investigated in order to elucidate whether any of these factors were important for clinical outcome. PATIENTS AND METHODS: Twelve patients who were disease-free 5 years after diagnosis were matched and compared with 12 patients who died within 2 years. The presence of HPV, HPV type and viral load in their tumours was examined by PCR. RESULTS: The distribution and load of HPV was similar in the 2 patient groups. HPV-16 was, however, significantly more common in tumours of the surviving patients than in those of patients who died (88.9% and 18.2%, respectively, p = 0.0152). CONCLUSION: HPV-16 was significantly more common in early stage carcinomas of patients surviving more than 5 years in comparison to early stage carcinomas of patients with a poor prognosis.
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| 2. |
- Dahlstrand, Hanna, et al.
(författare)
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Human papillomavirus accounts both for increased incidence and better prognosis in tonsillar cancer.
- 2008
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Ingår i: Anticancer Research. - 0250-7005 .- 1791-7530. ; 28:2B, s. 1133-8
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Tidskriftsartikel (refereegranskat)abstract
- The aim of this review is to present the current knowledge on the status and significance of human papillomavirus (HPV) in tonsillar cancer. An increase in the incidence of tonsillar cancer has been reported and recent data suggest that this increase is due to an increased proportion of HPV in these tumours. Furthermore, patients with HPV positive cancer have been shown to have a lower risk of relapse and longer survival compared to patients with HPV-negative tonsillar cancer. Tailoring individual treatment in tonsillar cancer may be of importance in order to reduce patient suffering as well as to increase patient survival. Finally, the fact that the presence of HPV-type 16 E6 and E7 mRNA has been ascertained in tonsillar cancer suggests that HPV-16 indeed is an aetiological factor associated with the disease and that preventive vaccination for this patient group should be discussed.
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| 3. |
- Dahlstrand, Hanna, et al.
(författare)
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Presence of human papillomavirus in tonsillar cancer is a favourable prognostic factor for clinical outcome.
- 2004
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Ingår i: Anticancer Research. - 0250-7005 .- 1791-7530. ; 24:3b, s. 1829-35
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Tidskriftsartikel (refereegranskat)abstract
- The purpose of this article is to review the current knowledge on the status and significance of human papillomavirus (HPV) in tonsillar cancer. Current data in scientific reports and data from the Karolinska Hospital and Karolinska Institute, Sweden, demonstrate that approximately half of all tonsillar cancer is HPV-positive. Moreover, patients with HPV-positive cancer have a lower risk of relapse and longer survival compared to patients with HPV-negative tonsillar cancer. The favourable outcome for patients harbouring HPV-positive tonsillar cancer cannot be attributed to increased radiosensitivity, since there is no significant difference in sensitivity to radiotherapy between HPV-positive and -negative tonsillar cancer. However, HPV-positive cancer exhibits less genetic instability i.e. shows a lower degree of aneuploidy and a tendency to have fewer chromosomal aberrations, when compared to HPV-negative tonsillar cancer.
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| 4. |
- Lindquist, David, et al.
(författare)
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Intense CD44 expression is a negative prognostic factor in tonsillar and base of tongue cancer
- 2012
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Ingår i: Anticancer Research. - : International Institute of Anticancer Research. - 0250-7005 .- 1791-7530. ; 32:1, s. 153-161
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: Patients with tonsillar and base of tongue cancer, which are human papillomavirus (HPV) positive, have a better clinical outcome than those with HPV-negative tumors. The identification of additional predictive markers for response to therapy could still be of great use.MATERIALS AND METHODS: Tumor markers CD44, p16, epidermal growth factor receptor (EGFR), vascular endothelial growth factor (VEGF), E-cadherin, cyclooxygenase-2 (COX 2), Ki-67, and p27 were analyzed by immunochemistry, and HPV status was tested by polymerase chain reaction (PCR) in tumors from 73 patients and correlated to survival.RESULTS: High intensity CD44 staining (p=0.006) and high EGFR expression (p=0.026) were indicators of poor prognosis, while high p16 expression (p=0.021) and younger age (p=0.002) were positive prognostic markers for disease-specific survival. Furthermore, staining of CD44 (p=0.026) and age (p=0.002) were shown to be strong prognostic markers in multivariate analysis, which should be evaluated further for possible use in clinical practice.
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| 5. |
- Mellin Dahlstrand, Hanna, et al.
(författare)
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P16(INK4a) correlates to human papillomavirus presence, response to radiotherapy and clinical outcome in tonsillar carcinoma.
- 2005
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Ingår i: Anticancer Research. - 0250-7005 .- 1791-7530. ; 25:6C, s. 4375-83
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: Human papillomavirus (HPV) in tonsillar carcinoma is correlated with favourable clinical outcome. Here, p16(INK4A), in situ HPV DNA hybridisation (ISH) and HPVL1 capsid detection were evaluated in tonsillar carcinoma to predict the response to radiotherapy (RT) and prognosis. MATERIALS AND METHODS: Fifty-one pre-treatment paraffin-embedded tonsillar cancer biopsies were analysed. Immunohistochemistry (IHC) was used for p16(INK4A) and HPVL1 capsid analysis and PCR and ISH for HPV detection. RESULTS: High-risk HPV DNA was detected by PCR in 49% of the tumours. P16(INK4a) staining was correlated to HPV In the high-grade p16(INK4a) staining group, 94% had a complete RT response. High p16(INK4a) staining as well as the HPV PCR-positive cases had a favourable prognosis. HPV DNA ISH and L1 IHC could not predict RT response or clinical outcome. CONCLUSION: P16(INK4a) overexpression was correlated to HPV in tonsillar carcinoma and is useful for predicting RT response and prognosis in tonsillar carcinoma patients.
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| 6. |
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| 7. |
- Näsman, Anders, et al.
(författare)
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Human Papillomavirus and Potentially Relevant Biomarkers in Tonsillar and Base of Tongue Squamous Cell Carcinoma
- 2017
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Ingår i: Anticancer Research. - : International Institute of Anticancer Research. - 0250-7005 .- 1791-7530. ; 37:10, s. 5319-5328
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Forskningsöversikt (refereegranskat)abstract
- Human papillomavirus (HPV)-positive tonsillar- and base of tongue cancer is increasing epidemically and has much better outcome than corresponding HPV-negative cancer and most other head and neck cancers with around 80% 3-year disease free survival with conventional radiotherapy and surgery. Consequently, most HPV-positive cancer patients may not require the intensified chemoradiotherapy given to many head and neck cancer patients and would, with tapered treatment, avoid several severe side-effects. Moreover, intensified therapy has not improved survival and treatment alternatives are needed. To identify patients eligible for tapered or targeted therapy, additional biomarkers are required. Several studies have, therefore, focused on finding predictive markers, some of which are also potentially targetable. To conclude, better-tailored therapy, either as tapered or targeted, is important for increasing numbers of patients with HPV-positive tonsillar- and base of tongue cancer. This review deals with some of these issues and presents some promising markers.
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