Oliver G. Siefer

Head And Neck Surgery
Koeln, NW 50937, Germany

Last Updated: 09/26/2026

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Found 11 publications

Local T-Cell Dysregulation and Immune Checkpoint Expression in Human Papillomavirus-Mediated Recurrent Respiratory Papillomatosis.

Local T-Cell Dysregulation and Immune Checkpoint Expression in Human Papillomavirus-Mediated Recurrent Respiratory Papillomatosis.

Journal: Cells
Published: May 19, 2025

Exploring targets in oropharyngeal cancer - association with immune markers and AI-scoring of B7-H3 expression.

Exploring targets in oropharyngeal cancer - association with immune markers and AI-scoring of B7-H3 expression.

Journal: Clinical and translational medicine
Published: December 10, 2024

Analysis of Expression and Regulation of AKR1C2 in HPV-Positive and -Negative Oropharyngeal Squamous Cell Carcinoma.

Analysis of Expression and Regulation of AKR1C2 in HPV-Positive and -Negative Oropharyngeal Squamous Cell Carcinoma.

Journal: Cancers
Published: July 23, 2024

Quantification of human papillomavirus cell-free DNA from low-volume blood plasma samples by digital PCR.

Quantification of human papillomavirus cell-free DNA from low-volume blood plasma samples by digital PCR.

Journal: Microbiology spectrum
Published: June 03, 2024

Comprehensive Analysis of VEGFR2 Expression in HPV-Positive and -Negative OPSCC Reveals Differing VEGFR2 Expression Patterns.

Comprehensive Analysis of VEGFR2 Expression in HPV-Positive and -Negative OPSCC Reveals Differing VEGFR2 Expression Patterns.

Journal: Cancers
Published: August 24, 2021

Downregulation of the α1- and β1-subunit of sGC in Arterial Smooth Muscle Cells of OPSCC Is HPV-Independent.

Downregulation of the α1- and β1-subunit of sGC in Arterial Smooth Muscle Cells of OPSCC Is HPV-Independent.

Journal: Journal of dental research
Published: May 19, 2018

Tumor-associated B cells and humoral immune response in head and neck squamous cell carcinoma.

Tumor-associated B cells and humoral immune response in head and neck squamous cell carcinoma.

Journal: Oncoimmunology
Published: February 09, 2018

Upregulation of AKR1C1 and AKR1C3 expression in OPSCC with integrated HPV16 and HPV-negative tumors is an indicator of poor prognosis.

Upregulation of AKR1C1 and AKR1C3 expression in OPSCC with integrated HPV16 and HPV-negative tumors is an indicator of poor prognosis.

Journal: International journal of cancer
Published: February 07, 2018

Valosin-containing protein (VCP/p97)-expression correlates with prognosis of HPV- negative oropharyngeal squamous cell carcinoma (OSCC).

Valosin-containing protein (VCP/p97)-expression correlates with prognosis of HPV- negative oropharyngeal squamous cell carcinoma (OSCC).

Journal: PloS one
Published: June 11, 2014

Prevalence and risk factors for oral human papillomavirus infection in 129 women screened for cervical HPV infection.

Prevalence and risk factors for oral human papillomavirus infection in 129 women screened for cervical HPV infection.

Journal: Oral oncology
Published: May 31, 2013

p16 expression in carcinoma of unknown primary: diagnostic indicator and prognostic marker.

p16 expression in carcinoma of unknown primary: diagnostic indicator and prognostic marker.

Journal: Head & neck
Published: September 12, 2012
Showing 1-11 of 11

Last Updated: 09/26/2026