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. 1983 Apr;67(4):244–248. doi: 10.1136/bjo.67.4.244

Enolase isoenzymes in uveal melanomas--a possible parameter of malignancy.

J A Royds, I G Rennie, M A Parsons, W R Timperley, C B Taylor
PMCID: PMC1040027  PMID: 6338907

Abstract

Seven uveal melanomas were stained for gamma enolase by an immunoperoxidase PAP (peroxidase-antiperoxidase) technique, and biochemical assays were carried out on tissue homogenates. A correlation between the biochemical assay and the immunoperoxidase staining was demonstrated. Two tumours with the highest biochemical assays showed positive staining for the enzyme, and 2 tumours with the lowest levels showed no appreciable staining. The highest level of enolase was present in a tumour which both clinically and histologically appeared to be benign, and the lowest level occurred in a mixed cell tumour which was large in size; the low level presumably related to its relatively fast rate of growth. Estimation of gamma enolase activity in ocular melanomas may provide an accurate quantitative method for assessing the malignant potential of these tumours.

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Selected References

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  1. Bolton A. E., Hunter W. M. The labelling of proteins to high specific radioactivities by conjugation to a 125I-containing acylating agent. Biochem J. 1973 Jul;133(3):529–539. doi: 10.1042/bj1330529. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. FLOCKS M., GERENDE J. H., ZIMMERMAN L. E. The size and shape of malignant melanomas of the choroid and ciliary body in relation to prognosis and histologic characteristics; a statistical study of 210 tumors. Trans Am Acad Ophthalmol Otolaryngol. 1955 Nov-Dec;59(6):740–758. [PubMed] [Google Scholar]
  3. Fletcher L., Rider C. C., Taylor C. B., Adamson E. D., Luke B. M., Graham C. F. Enolase isoenzymes as markers of differentiation in teratocarcinoma cells and normal tissues of mouse. Dev Biol. 1978 Aug;65(2):462–475. doi: 10.1016/0012-1606(78)90041-6. [DOI] [PubMed] [Google Scholar]
  4. Fletcher L., Rider C. C., Taylor C. B. Enolase isoenzymes. III. Chromatographic and immunological characteristics of rat brain enolase. Biochim Biophys Acta. 1976 Nov 8;452(1):245–252. doi: 10.1016/0005-2744(76)90077-2. [DOI] [PubMed] [Google Scholar]
  5. Gass J. D. Problems in the differential diagnosis of choroidal nevi and malignant melanomas. The XXXIII Edward Jackson Memorial Lecture. Am J Ophthalmol. 1977 Mar;83(3):299–323. doi: 10.1089/ten.2005.11.1254. [DOI] [PubMed] [Google Scholar]
  6. Marangos P. J., Zis A. P., Clark R. L., Goodwin F. K. Neuronal, non-neuronal and hybrid forms of enolase in brain: structural, immunological and functional comparisons. Brain Res. 1978 Jul 7;150(1):117–133. doi: 10.1016/0006-8993(78)90657-1. [DOI] [PubMed] [Google Scholar]
  7. McLean I. W., Zimmerman L. E., Evans R. M. Reappraisal of Callender's spindle a type of malignant melanoma of choroid and ciliary body. Am J Ophthalmol. 1978 Oct;86(4):557–564. doi: 10.1016/0002-9394(78)90307-0. [DOI] [PubMed] [Google Scholar]
  8. McLean M. J., Foster W. D., Zimmerman L. E. Prognostic factors in small malignant melanomas of choroid and ciliary body. Arch Ophthalmol. 1977 Jan;95(1):48–58. doi: 10.1001/archopht.1977.04450010050004. [DOI] [PubMed] [Google Scholar]
  9. Rider C. C., Taylor C. B. Enolase isoenzymes in rat tissues. Electrophoretic, chromatographic, immunological and kinetic properties. Biochim Biophys Acta. 1974 Sep 13;365(1):285–300. doi: 10.1016/0005-2795(74)90273-6. [DOI] [PubMed] [Google Scholar]
  10. Royds J. A., Parsons M. A., Taylor C. B., Timperley W. R. Enolase isoenzyme distribution in the human brain and its tumours. J Pathol. 1982 May;137(1):37–49. doi: 10.1002/path.1711370105. [DOI] [PubMed] [Google Scholar]
  11. Schmechel D. E., Brightman M. W., Marangos P. J. Neurons switch from non-neuronal enolase to neuron-specific enolase during differentiation. Brain Res. 1980 May 19;190(1):195–214. doi: 10.1016/0006-8993(80)91169-5. [DOI] [PubMed] [Google Scholar]
  12. Schmechel D., Marangos P. J., Brightman M. Neurone-specific enolase is a molecular marker for peripheral and central neuroendocrine cells. Nature. 1978 Dec 21;276(5690):834–836. doi: 10.1038/276834a0. [DOI] [PubMed] [Google Scholar]
  13. Schmechel D., Marangos P. J., Zis A. P., Brightman M., Goodwin F. K. Brain endolases as specific markers of neuronal and glial cells. Science. 1978 Jan 20;199(4326):313–315. doi: 10.1126/science.339349. [DOI] [PubMed] [Google Scholar]
  14. Teillet M. A., Le Douarin N. La migration des cellules pigmentaires étudiée par la méthode des greffes hétérospécifiques de tube nerveux chez l'embryon d'oiseau. C R Acad Sci Hebd Seances Acad Sci D. 1970 Jun 22;270(25):3095–3098. [PubMed] [Google Scholar]

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