Are oxyphil cells responsible for the ineffectiveness of cinacalcet hydrochloride in haemodialysis patients?

Autor: Jacques Rottembourg, Fabrice Menegaux
Přispěvatelé: Service de Néphrologie [CHU Pitié-Salpêtrière], CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Service de Chirurgie Générale, Viscérale et Endocrinienne [CHU Pitié-Sapêtrière], Service de néphrologie [CHU Pitié-Salpêtrière], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: Clinical Kidney Journal
Clinical Kidney Journal, Oxford University Press, 2019, 12 (3), pp.433-436. ⟨10.1093/ckj/sfy062⟩
ISSN: 2048-8513
2048-8505
DOI: 10.1093/ckj/sfy062⟩
Popis: International audience; Parathyroid glands consist primarily of chief cells. In some cases, the proportion of parathyroid oxyphil cells increases in patients with chronic kidney disease. We describe a case of secondary hyperparathyroidism (SHPT) in a patient treated with haemodialysis who initially received large doses of vitamin D and calcium (Ca) supplements, as well as high doses of cinacalcet hydrochloride (C-HCl), but without any effect on parathyroid hormone levels. Following a successful parathyroidectomy, histopathological examination revealed that two of the parathyroid glands consisted of 40% of oxyphil cells. Oxyphil cells have significantly more Ca-sensing receptors (CaSRs) than chief cells, suggesting that CaSRs are involved in the transdifferentiation of chief cells to oxyphil cells. C-HCl treatment leads to a significant increase in parathyroid oxyphil cell content. This case suggests that C-HCl may induce specific phenotypic alterations in hyperplastic parathyroid glands in patients with severe SHPT.
Databáze: OpenAIRE