Pyruvate kinase isozyme patterns of human neoplastic, fetal and adult tissues
β Scribed by Rames Kamel; Friedrich Schwarzfischer
- Publisher
- Springer
- Year
- 1975
- Tongue
- English
- Weight
- 515 KB
- Volume
- 28
- Category
- Article
- ISSN
- 0340-6717
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β¦ Synopsis
A method of starch gel electrophoresis is described which enables detection of 6 isozymes of human pyruvate kinase (PK, E.C.2.7.1.40). Comparing the PK-isozyme patterns of 53 diverse human tumors with those of normal adult and fetal organ tissues, it was found that the isozyme PK I is predominant in all malignant tumors as well as in almost all fetal organs.
π SIMILAR VOLUMES
The distribution of electrophoretic fractions of hexokinase (HK E.C. 2.7.1.1) in extracts of 53 human primary tumors, homologous normal tissues and fetal organs was investigated. It was found that the fraction HK II is present in every malignant tumor and in placenta tissue.
An investigation of the correlation between the y->p-globin switch and DNA methylation was carried out. The restriction patterns obtained with methylation-sensitive and -insensitive enzymes indicated hypomethylation in the promoter region of the r-globin genes in fetal liver DNA but high methylation
## Abstract Electrophoretic and immunofluorescence analysis were used to study the distribution of pyruvate kinase isozymes in the bovine kidney. Electrophoretic analysis demonstrated the presence of large amounts of K~4~ plus small amounts of KβM hybrids in cortical, medullary, and papillary secti