PMID- 9509445 OWN - NLM STAT- MEDLINE DCOM- 19980504 LR - 20190512 IS - 0931-0509 (Print) IS - 0931-0509 (Linking) VI - 13 IP - 2 DP - 1998 Feb TI - Structural analysis of gene marker loci on chromosomes 10 and 11 in primary and secondary uraemic hyperparathyroidism. PG - 350-7 AB - BACKGROUND: The genetic molecular anomalies in patients with primary (I degree) and secondary (II degree) hyperparathyroidism (HPTH) are still largely unknown. In particular, the changes underlying monoclonal growth in the parathyroids of patients with II degree HPTH are not well understood. METHODS: We screened genomic DNA from a total of 30 patients with I degree HPTH and 29 patients with II degree uraemic HPTH for possible rearrangements or allelic losses of several gene markers located on chromosome 11p near the PTH gene, namely Ha-ras, IGF-2, WT1, and the PTH gene itself. In addition, two other gene markers, PRAD1 (localized on 11q13) and RET (localized on 10q11) were examined for possible structural alterations. Moreover, we used fluorescence in situ hybridization (FISH) which is another technique to detect numerical alterations of chromosome 11. RESULTS: The results show that one of 13 patients with I degree HPTH (8%) exhibited a rearrangement for the PRAD-1 gene. Loss of heterozygosity of Ha-ras locus was observed in one of 11 uraemic patients with II degree HPTH (9%). Three of 10 patients with I degree HPTH (30%) and one of 7 patients with II degree HPTH (14%) showed an allelic loss of the WT1 gene. No evidence of rearrangement or allelic loss was detected for the IGF-2, PTH or RET genes respectively. Using FISH method, three normal parathyroid gland, six I degree HPTH adenomas and eight II degree HPTH hyperplastic glands from uraemic patients were studied with centromeric probe for chromosome 11. Monosomy 11 was observed in one case of I degree HPTH and in one other case of II degree HPTH. CONCLUSION: Evidence of loss of heterozygosity for several genes located on human chromosome 11p has been found in a series of parathyroid glands from several patients with I degree and II degree uraemic HPTH, corresponding to monosomy of chromosome 11 in some cases. FAU - Inagaki, C AU - Inagaki C AD - Inserm Unite 90 and Departement de Nephrologie, Hopital Necker, Paris, France. FAU - Dousseau, M AU - Dousseau M FAU - Pacher, N AU - Pacher N FAU - Sarfati, E AU - Sarfati E FAU - Drueke, T B AU - Drueke TB FAU - Gogusev, J AU - Gogusev J LA - eng PT - Journal Article PL - England TA - Nephrol Dial Transplant JT - Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association JID - 8706402 RN - 0 (Genetic Markers) SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - Blotting, Southern MH - *Chromosome Mapping MH - *Chromosomes, Human, Pair 10 MH - *Chromosomes, Human, Pair 11 MH - Gene Deletion MH - Gene Rearrangement/genetics MH - Genetic Markers MH - Humans MH - Hyperparathyroidism/*complications MH - In Situ Hybridization, Fluorescence MH - Loss of Heterozygosity/genetics MH - Middle Aged MH - Uremia/*etiology/*genetics EDAT- 1998/03/24 00:00 MHDA- 1998/03/24 00:01 CRDT- 1998/03/24 00:00 PHST- 1998/03/24 00:00 [pubmed] PHST- 1998/03/24 00:01 [medline] PHST- 1998/03/24 00:00 [entrez] AID - 10.1093/oxfordjournals.ndt.a027829 [doi] PST - ppublish SO - Nephrol Dial Transplant. 1998 Feb;13(2):350-7. doi: 10.1093/oxfordjournals.ndt.a027829.