Abstract
Protein phosphorylation plays an important role in signal transduction of both normal and neoplastic cells. Since increased protein tyrosine phosphorylation may be associated with malignant transformation, we studied the activities of protein tyrosine kinases (PTK) and protein tyrosine phosphatases (PTPase) in patients with various head and neck tumors. Furthermore, we determined the patterns of tyrosine phosphorylated protein (P-tyr) in tissues by western blotting. Enzyme activities were studied in tumor and histologically normal, non-tumorous tissues of 54 patients and in 11 controls. P-tyr patterns were determined in 3 patients and 2 controls. PTK and PTPase activities were greater in tumor tissues than in normal tissue of the cancer patients as well as controls. P-tyr levels in tumors were also higher than in normal tissues. Additionally, PTK activity in normal tissue of tumor patients was significantly higher than in normal tissue of the control group. The same trend was observed for the PTPase activity and P-tyr levels.
Similar content being viewed by others
References
Bishop JM (1987) The molecular genetics of cancer. Science 235:305–311
Erp HE van (1992) Protein tyrosine kinases in human brain, oligodendrogliomas and astrocytomas. J Neurochem 58:554–561
Field JK, Spandidos DA (1990) The role of ras and myc oncogenes in human solid tumours and their relevance in diagnosis and prognosis (review). Anticancer Res 10:1–22
Fischer EH, Charbonneau H, Tonks NK (1991) Protein tyrosine phosphatases: a diverse family of intracellular and transmembrane enzymes. Science 253:401–406
Hennipman A, Oirschot BA van, Smits J, Rijksen G, Staal GEJ (1989) Tyrosine kinase activity in breast cancer, benign breast disease, and normal breast tissue. Cancer Res 49:516–521
Hermanek P, Sobiq LH (1987) TNM classification of malignant tumours. (UICC, International union against cancer) Springer, Berlin Heidelberg New York
Hokanson J (1991) Discussion/perspective of ‘Beyond the “new” TNM classification’. Arch Otolaryngol 117:371
Klarlund JK (1985) Transformation of cells by an inhibitor of phosphatases acting on phosphotyrosine in proteins. Cell 41:707–717
Laemmli UK (1970) Cleavage of structural proteins during the assembly of the head of the bacteriophage T4. Nature (Lond) 227:680–685
Liebow C, Reilly C, Serrano M, Schally AV (1989) Somatostatin analogues inhibit growth of pancreatic cancer by stimulating tyrosine phosphatase. Proc Natl Acad Sci USA 86:2003–2007
Ottenhoff-Kalf AE, Rijksen G, Beurden EACM van, SchipperKester G, Adriaansen-Slot SS; Hennipman A, Michels AA, Staal GEJ (1992) Characterization of protein tyrosine kinases from human breast cancer; involvement of the c-src oncogene product. Cancer Res 52:4773–4778
Rijksen G, Oirschot BA van, Staal GEJ (1991) Nonradioactive assays of phospho-tyrosine kinase activity using anti-phosphotyrosine antibodies. In: Hunter T, Sefton BM (eds) Protein phosphorylation, part A (Methods in Enzymology, vol 200). Academic Press, San Diego, pp 98–106
Rijksen G, Völler MCW, Zoelen EJJ van (1993) Orthovanadate both mimics and antagonizes the transforming growth factor β action on normal rat kidney cells. J Cell Physiol 154:393–401
Riviere A, Wilckens C, Loning T (1990) Expression of cerbB2 and c-myc in squamous epithelia and squamous cell carcinomas of the head and neck and the lower female genital tract. J Oral Pathol Med 19:408–413
Riviere A, Becker J, Loning T (1991) Comparative investigation of c-erbB2/neu expression in head and neck tumors and mammary cancer. Cancer 67:2142–2149
Rydell EL, Olofsson J, Hellem S, Axelsson KL (1991) Tyrosine kinase activities in normal and neoplastic epithelia tissue of the human upper aero-digestive tract. Second Messengers Phosphoproteins 13:217–229
Scambia G, Panici PB, Battaglia F, Ferrandina G, Almadori G, Paludetti G, Maurizi M, Mancuso S (1991) Receptors for epidermal growth factor and steroid hormones in primary laryngeal tumors. Cancer 67:1347–1351
Slamon DJ, Kernion JB de, Verma IM, Cline MJ (1984) Expression of cellular oncogenes in human malignancies. Science 224:256–262
Tonks NK, Charbonneau H (1989) Protein tyrosine phosphorylation and signal transduction. Trends Biochem Sci 14:497–500
Ullrich A, Schlessinger J (1990) Signal transduction by receptors with tyrosine kinase activity. Cell 61:203–212
Verschuur H, Rijksen G, Schipper-Kester GPM, Slootweg PJ, Hordijk GJ, Staal GEJ (1993) Protein tyrosine kinase activity in laryngeal squamous cell carcinoma. Eur Arch Otorhinolaryngol 249:466–469
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Verschuur, H.P., Rijksen, G., van Oirschot, B.A. et al. Protein tyrosine (de-) phosphorylation in head and neck squamous cell carcinoma. Eur Arch Otorhinolaryngol 251, 12–16 (1994). https://doi.org/10.1007/BF00175951
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00175951