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001-es BibID:	BIBFORM033557
035-os BibID:	(Scopus)28444478741 (WoS)000233762000030
Első szerző:	Havt, Alexandre
Cím:	The expression of the pituitary growth hormone-releasing hormone receptor and its splice variants in normal and neoplastic human tissues / Alexandre Havt, Andrew V. Schally, Gabor Halmos, Jozsef L. Varga, Gabor L. Toller, Judit E. Horvath, Karoly Szepeshazi, Frank Köster, Kevin Kovitz, Kate Groot, Marta Zarandi, Celia A. Kanashiro
Dátum:	2005
ISSN:	0027-8424
Megjegyzések:	Various attempts to detect human pituitary growth hormone-releasing hormone receptor (pGHRH-R) in neoplastic extrapituitary tissues have thus far failed. Recently, four splice variants (SVs) of GHRH-R have been described, of which SV1 has the highest structural homology to pGHRH-R and likely plays a role in tumor growth. The aim of this study was to reinvestigate whether human tumors and normal human extrapituitary tissues express the pGHRH-R and to corroborate our previous findings on its SVs. Thus, we developed a real-time PCR method for the detection of the mRNA for the pGHRH-R, its SVs, and the GHRH peptide. Using real-time PCR, Western blotting, and radioligand-binding assays, we detected the mRNA for pGHRH-R and pGHRH-R protein in various human cancer cell lines grown in nude mice and in surgical specimens of human lung cancers. The expression of mRNA for SVs of pGHRH-R and GHRH was likewise found in xenografts of human non-Hodgkin's lymphomas, pancreatic cancer, glioblastoma, small-cell lung carcinomas, and in human nonmalignant prostate, liver, lung, kidney, and pituitary. Western blots showed that these normal and malignant human tissues contain SV1 protein and immunoreactive GHRH. Our results demonstrate that some normal human tissues and tumors express mRNA and protein for the pGHRH-R and its splice variants. These findings confirm and extend the concept that GHRH and its receptors play an important role in the pathophysiology of human cancers.
Tárgyszavak:	Orvostudományok Gyógyszerészeti tudományok idegen nyelvű folyóiratközlemény külföldi lapban külföldön készült közlemény
Megjelenés:	Proceedings of The National Academy of Sciences of The United States Of America. - 102 : 48 (2005), p. 17424-17429. -
További szerzők:	Schally, Andrew Victor Halmos Gábor (1962-) (gyógyszerész, receptorfarmakológus, experimentális onkológus) Varga József L. Toller Gábor L. Horváth Judit E. (New Orleans) Szepesházi Károly Köster, Frank Kovitz, Kevin Groot, Kate Zarándi Márta Kanashiro, Celia A.
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