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Measurement of androgen receptor expression in adult liver, fetal liver, and Hep-G2 cells by the polymerase chain reaction.
  1. A P Stubbs,
  2. J L Engelman,
  3. J I Walker,
  4. P Faik,
  5. G M Murphy,
  6. M L Wilkinson
  1. Gastroenterology Unit, UMDS of Guy's and St Thomas's Hospital's, London.

    Abstract

    Hepatocellular carcinoma is the most commonly fatal malignant tumour worldwide. The role of androgen receptors, which have been found in hepatocellular carcinoma, is controversial. Sequence specific polymerase chain reaction (PCR) was used to quantify, for the first time, the expression of androgen receptor in four adult liver biopsy specimens (HL-A to HL-D), fetal liver, and Hep-G2 cells. The measurement of androgen receptor is expressed as a ratio (androgen receptor: beta-actin) of the value of androgen receptor to the value of a control gene, beta-actin. The value of the androgen receptor: beta-actin ratios for HL-A, HL-B, HL-C, HL-D, fetal liver, and Hep-G2 were 0.37, 0.86, 0.37, 0.44, 0.87, and 0.66 respectively. To verify sequence specific amplification of the androgen receptor, the PCR androgen receptor fragment was sequenced. The resultant sequence data for both strands of the double stranded PCR androgen receptor fragment had 100% similarity with the published androgen receptor mRNA sequence (complete codons).

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