Abstract
In the present investigation we have studied the expression of platelet-derived endothelial cell growth factor/thymidine phosphorylase (PD-ECGF/TP) in ten different human lung carcinoma cell lines, four small cell carcinomas and six non-small cell carcinomas. None of the small-cell lung carcinoma cell lines demonstrated expression of PD-ECGF/TP mRNA. However, four of six of the non-small cell carcinoma cell lines expressed the 1.8 kb PD-ECGF/TP transcript. The cell lines derived from the single squamous cell carcinoma and the two adenocarcinomas expressed the PD-ECGF/TP mRNA, and were found to have the corresponding protein both in cell lysates and conditioned media as determined both by immunoblotting and measurement of thymidine phosphorylase activity. Only one of three studied large cell carcinoma cell lines expressed low levels of PD-ECGF/TP mRNA, but the corresponding PD-ECGF/TP protein was not demonstrated by immunoblotting.
Full text
PDF



Images in this article
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Auffray C., Rougeon F. Purification of mouse immunoglobulin heavy-chain messenger RNAs from total myeloma tumor RNA. Eur J Biochem. 1980 Jun;107(2):303–314. doi: 10.1111/j.1432-1033.1980.tb06030.x. [DOI] [PubMed] [Google Scholar]
- Baillie-Johnson H., Twentyman P. R., Fox N. E., Walls G. A., Workman P., Watson J. V., Johnson N., Reeve J. G., Bleehen N. M. Establishment and characterisation of cell lines from patients with lung cancer (predominantly small cell carcinoma). Br J Cancer. 1985 Oct;52(4):495–504. doi: 10.1038/bjc.1985.220. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Bepler G., Jaques G., Neumann K., Aumüller G., Gropp C., Havemann K. Establishment, growth properties, and morphological characteristics of permanent human small cell lung cancer cell lines. J Cancer Res Clin Oncol. 1987;113(1):31–40. doi: 10.1007/BF00389964. [DOI] [PubMed] [Google Scholar]
- Bergh J. The expression of the platelet-derived and transforming growth factor genes in human nonsmall lung cancer cell lines is related to tumor stroma formation in nude mice tumors. Am J Pathol. 1988 Dec;133(3):434–439. [PMC free article] [PubMed] [Google Scholar]
- Cuttitta F., Carney D. N., Mulshine J., Moody T. W., Fedorko J., Fischler A., Minna J. D. Bombesin-like peptides can function as autocrine growth factors in human small-cell lung cancer. 1985 Aug 29-Sep 4Nature. 316(6031):823–826. doi: 10.1038/316823a0. [DOI] [PubMed] [Google Scholar]
- Gazdar A. F., Carney D. N., Nau M. M., Minna J. D. Characterization of variant subclasses of cell lines derived from small cell lung cancer having distinctive biochemical, morphological, and growth properties. Cancer Res. 1985 Jun;45(6):2924–2930. [PubMed] [Google Scholar]
- Ishikawa F., Miyazono K., Hellman U., Drexler H., Wernstedt C., Hagiwara K., Usuki K., Takaku F., Risau W., Heldin C. H. Identification of angiogenic activity and the cloning and expression of platelet-derived endothelial cell growth factor. Nature. 1989 Apr 13;338(6216):557–562. doi: 10.1038/338557a0. [DOI] [PubMed] [Google Scholar]
- Miyazono K., Heldin C. H. High-yield purification of platelet-derived endothelial cell growth factor: structural characterization and establishment of a specific antiserum. Biochemistry. 1989 Feb 21;28(4):1704–1710. doi: 10.1021/bi00430a042. [DOI] [PubMed] [Google Scholar]
- Miyazono K., Okabe T., Urabe A., Takaku F., Heldin C. H. Purification and properties of an endothelial cell growth factor from human platelets. J Biol Chem. 1987 Mar 25;262(9):4098–4103. [PubMed] [Google Scholar]
- Miyazono K., Usuki K., Heldin C. H. Platelet-derived endothelial cell growth factor. Prog Growth Factor Res. 1991;3(3):207–217. doi: 10.1016/0955-2235(91)90007-q. [DOI] [PubMed] [Google Scholar]
- Söderdahl G., Betsholtz C., Johansson A., Nilsson K., Bergh J. Differential expression of platelet-derived growth factor and transforming growth factor genes in small- and non-small-cell human lung carcinoma lines. Int J Cancer. 1988 Apr 15;41(4):636–641. doi: 10.1002/ijc.2910410426. [DOI] [PubMed] [Google Scholar]
- Usuki K., Heldin N. E., Miyazono K., Ishikawa F., Takaku F., Westermark B., Heldin C. H. Production of platelet-derived endothelial cell growth factor by normal and transformed human cells in culture. Proc Natl Acad Sci U S A. 1989 Oct;86(19):7427–7431. doi: 10.1073/pnas.86.19.7427. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Usuki K., Norberg L., Larsson E., Miyazono K., Hellman U., Wernstedt C., Rubin K., Heldin C. H. Localization of platelet-derived endothelial cell growth factor in human placenta and purification of an alternatively processed form. Cell Regul. 1990 Jul;1(8):577–584. doi: 10.1091/mbc.1.8.577. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Usuki K., Saras J., Waltenberger J., Miyazono K., Pierce G., Thomason A., Heldin C. H. Platelet-derived endothelial cell growth factor has thymidine phosphorylase activity. Biochem Biophys Res Commun. 1992 May 15;184(3):1311–1316. doi: 10.1016/s0006-291x(05)80025-7. [DOI] [PubMed] [Google Scholar]
- Yoshimura A., Kuwazuru Y., Furukawa T., Yoshida H., Yamada K., Akiyama S. Purification and tissue distribution of human thymidine phosphorylase; high expression in lymphocytes, reticulocytes and tumors. Biochim Biophys Acta. 1990 Apr 23;1034(1):107–113. doi: 10.1016/0304-4165(90)90160-x. [DOI] [PubMed] [Google Scholar]