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Korkmaz Y, Roggendorf HC, Siefer OG, Seehawer J, Imhof T, Plomann M, Bloch W, Friebe A, Huebbers CU. Downregulation of the α 1- and β 1-subunit of sGC in Arterial Smooth Muscle Cells of OPSCC Is HPV-Independent. J Dent Res 2018; 97:1214-1221. [PMID: 29775416 DOI: 10.1177/0022034518774531] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The nitric oxide (NO)-sensitive soluble guanylyl cyclase (sGC) is a heterodimeric enzyme with an α and β subunit. NO binds to heme of the β1-subunit of sGC, activates the enzyme in the reduced heme iron state in vascular smooth muscle cells (VSMCs), and generates cGMP-inducing vasodilatation and suppression of VSMC proliferation. In the complex tumor milieu with higher levels of reactive oxygen species (ROS), sGC heme iron may become oxidized and insensitive to NO. To change sGC from an NO-insensitive to NO-sensitive state or NO-independent manner, protein expression of sGC in VSMC is required. Whether sGCα1β1 exists at the protein level in arterial VSMCs of oropharyngeal squamous cell carcinoma (OPSCC) is unknown. In addition, whether differences in the genetic profile between human papillomavirus (HPV)-positive and HPV-negative OPSCC contributes to the regulation of sGCα1β1 is unclear. Therefore, we compared the effects of HPV-positive and HPV-negative OPSCC on the expression of sGCα1β1 in arterial VSMCs from tumor-free and tumor-containing regions of human tissue sections using quantitative immunohistochemistry. In comparison to the tumor-free region, we found a decrease in expression of both α1- and β1-subunits in the arterial VSMC layer of the tumor-containing areas. The OPSCC-induced significant downregulation of the α1- and β1-subunits of sGC in arterial VSMC was HPV-independent. We conclude that the response of sGC to NO in tumor arterial VSMCs may be impaired by oxidation of the heme of the β1-subunit, and thus, α1- and β1-subunits of sGC could be targeted to degradation under oxidative stress in OPSCC in an HPV-independent manner. The degradation of sGCα1β1 in VSMCs may result in increased proliferation of VSMCs, promoting tumor arteriogenesis in OPSCC. This can be interrupted by preserving the active heterodimer sGCα1β1 in arterial VSMCs.
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Affiliation(s)
- Y Korkmaz
- 1 Institute for Experimental Dental Research and Oral Musculoskeletal Biology, University of Cologne, Cologne, Germany.,2 Department I of Anatomy, University of Cologne, Cologne, Germany.,3 Center for Biochemistry, University of Cologne, Cologne, Germany
| | - H C Roggendorf
- 4 Department of Operative Craniomaxillofacial and Plastic Surgery, University of Cologne, Cologne, Germany
| | - O G Siefer
- 5 Jean-Uhrmacher-Institute for Otorhinolaryngological Research, University of Cologne, Cologne, Germany
| | - J Seehawer
- 6 Department of Otorhinolaryngology, Head and Neck Surgery, University of Cologne, Germany
| | - T Imhof
- 1 Institute for Experimental Dental Research and Oral Musculoskeletal Biology, University of Cologne, Cologne, Germany
| | - M Plomann
- 3 Center for Biochemistry, University of Cologne, Cologne, Germany
| | - W Bloch
- 7 Department of Molecular and Cellular Sport Medicine, German Sport University, Cologne, Germany
| | - A Friebe
- 8 Institute of Physiology, Julius-Maximilians-University, Würzburg, Germany
| | - C U Huebbers
- 5 Jean-Uhrmacher-Institute for Otorhinolaryngological Research, University of Cologne, Cologne, Germany
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Meyer M, Meinrath J, Seehawer J, Lechner A, Odenthal M, Quaas A, Semrau R, Huebbers C, Marnitz S, Büttner R, Beutner D. The relevance of the lymph node ratio as predictor of prognosis is higher in HPV-negative than in HPV-positive oropharyngeal squamous cell carcinoma. Clin Otolaryngol 2017; 43:192-198. [DOI: 10.1111/coa.12938] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/12/2017] [Indexed: 01/03/2023]
Affiliation(s)
- M.F. Meyer
- Department of Otorhinolaryngology; Head and Neck Surgery; University of Cologne; Cologne Germany
- Center for Integrated Oncology Köln Bonn; University of Cologne; Cologne Germany
| | - J. Meinrath
- Center for Integrated Oncology Köln Bonn; University of Cologne; Cologne Germany
- Institute for Pathology; University of Cologne; Cologne Germany
| | - J. Seehawer
- Department of Otorhinolaryngology; Head and Neck Surgery; University of Cologne; Cologne Germany
- Center for Integrated Oncology Köln Bonn; University of Cologne; Cologne Germany
| | - A. Lechner
- Department of Otorhinolaryngology; Head and Neck Surgery; University of Cologne; Cologne Germany
- Center for Integrated Oncology Köln Bonn; University of Cologne; Cologne Germany
| | - M. Odenthal
- Center for Integrated Oncology Köln Bonn; University of Cologne; Cologne Germany
- Institute for Pathology; University of Cologne; Cologne Germany
- Center for Molecular Medicine Cologne; University of Cologne; Cologne Germany
| | - A. Quaas
- Center for Integrated Oncology Köln Bonn; University of Cologne; Cologne Germany
- Institute for Pathology; University of Cologne; Cologne Germany
| | - R. Semrau
- Center for Integrated Oncology Köln Bonn; University of Cologne; Cologne Germany
- Department of Radiation Oncology; University of Cologne; Cologne Germany
| | - C.U. Huebbers
- Jean-Uhrmacher Institute; University of Cologne; Cologne Germany
| | - S. Marnitz
- Center for Integrated Oncology Köln Bonn; University of Cologne; Cologne Germany
- Department of Radiation Oncology; University of Cologne; Cologne Germany
| | - R. Büttner
- Center for Integrated Oncology Köln Bonn; University of Cologne; Cologne Germany
- Institute for Pathology; University of Cologne; Cologne Germany
- Center for Molecular Medicine Cologne; University of Cologne; Cologne Germany
| | - D. Beutner
- Department of Otorhinolaryngology; Head and Neck Surgery; University of Cologne; Cologne Germany
- Center for Integrated Oncology Köln Bonn; University of Cologne; Cologne Germany
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Kolb E, Kaskous S, Seehawer J. [Nutritional biochemical aspects of the significance, of the utilization, of metabolism and of the administration of vitamin E and of selenium in sheep (review)]. Berl Munch Tierarztl Wochenschr 1997; 110:178-84. [PMID: 9290040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
A review is given on the significance, availability, metabolism and application of vitamin E and selenium in sheep. Vitamin E deficiency commonly occurs in spring. Selenium deficiency occurs in certain areas where the selenium content of plants is low. A further factor is the low availability of selenium as a consequence of reduction reactions in the forestomachs. When the supply of vitamin E and selenium is suboptimal, activity of the immune system and growth are impaired.
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Affiliation(s)
- E Kolb
- Veterinär-Physiologisch-Chemisches Institut, Universität Leipzig
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Camas H, Seehawer J, Köküuslu C, Bronsch K, Sallmann HP, Drommer W. [Cause of nutrition-induced muscular dystrophy in suckling lambs in Turkey]. Zentralbl Veterinarmed A 1986; 33:509-22. [PMID: 3097994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Camas H, Seehawer J, Köküuslu C, Bronsch K, Sallmann HP, Drommer W. Zur Ursache der ernährungsbedingten Muskeldystrophie bei Sauglämmern in der Türkei6. ACTA ACUST UNITED AC 1986. [DOI: 10.1111/j.1439-0442.1986.tb00562.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Männer K, Matuschka FR, Seehawer J. [Effect of a monoinfection with Isospora suis and its treatment using halofuginone and lasalocid on breeding achievement, digestion coefficients and composition of whole body cadavers of early weaned piglets]. Berl Munch Tierarztl Wochenschr 1981; 94:25-33. [PMID: 7213333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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