Detection of Gastrin and Its Messenger RNA in Zollinger-Ellison Tumors by Non-radioactive in Situ Hybridization and Immunocytochemistry
Overview
Authors
Affiliations
Gastrin immunocytochemistry and non-radioactive in situ hybridization, using biotinylated oligonucleotide probes, for gastrin mRNA have been used for studying a retrospective material of six gastrin-producing (Zollinger-Ellison) tumors. Hybridization results for gastrin mRNA were positive in all six, while gastrin immunoreactivity could be detected in five tumors. In one of the patients, different areas of the same tumor displayed differences in immunoreactivity to gastrin, but were uniformly hybridization positive. Weak hybridization signals were detected in liver metastases from a necropsy case, while the gastrin immunostaining was more pronounced. The results show that non-radioactive hybridization methods are applicable to routine clinical specimens stored for as long as 16 years and that in situ hybridization may be a useful complement to immunocytochemical diagnosis, particularly in cases where high synthesis and little storage of hormonal products occur.
Larsson L, Tingstedt J, Madsen O, Serup P, Hougaard D Endocrine. 2010; 3(7):519-24.
PMID: 21153208 DOI: 10.1007/BF02738827.
Coexpression of the gastrin and somatostatin genes in differentiating and neoplastic human cells.
Larsson L, Tingstedt J, Hougaard D Histochem Cell Biol. 1995; 104(2):139-44.
PMID: 8536070 DOI: 10.1007/BF01451572.
Westh H, Hougaard D, Vuust J, Rosdahl V Antimicrob Agents Chemother. 1995; 39(2):369-73.
PMID: 7726500 PMC: 162545. DOI: 10.1128/AAC.39.2.369.
Dorries U, Bartsch U, Nolte C, Roth J, Schachner M Histochemistry. 1993; 99(3):251-62.
PMID: 7684036 DOI: 10.1007/BF00269143.
Komminoth P, Merk F, Leav I, WOLFE H, Roth J Histochemistry. 1992; 98(4):217-28.
PMID: 1459861 DOI: 10.1007/BF00271035.