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Distribution and characterization of immunoreactive prolactin-releasing peptide (PrRP) in rat tissue and plasma.

Abstract：

:We established a sensitive and specific two-site enzyme immunoassay (EIA) for prolactin-releasing peptide (PrRP) using two region-specific monoclonal antibodies. We investigated the tissue distribution and the plasma concentration of immunoreactive (ir-) PrRP in rats using this assay. Ir-PrRP was widely distributed in the central nervous system and pituitary gland. The highest concentration of ir-PrRP was found in the hypothalamus. In peripheral tissues, appreciable levels of ir-PrRP were found only in the adrenal gland. The mean plasma concentration of ir-PrRP was 0.13 +/- 0.01 fmol/ml (mean +/- SEM). In reverse-phase and gel-filtration high performance liquid chromatography, hypothalamic ir-PrRP eluted at a position identical to that of PrRP31 and PrRP20. On the other hand, ir-PrRP from the adrenal gland and plasma eluted only at the position of synthetic PrRP31, indicating that molecular forms of ir-PrRP in vivo differed among tissues.

journal_name

Biochem Biophys Res Commun

journal_title

Biochemical and biophysical research communications

authors

Matsumoto H,Murakami Y,Horikoshi Y,Noguchi J,Habata Y,Kitada C,Hinuma S,Onda H,Fujino M

doi

10.1006/bbrc.1999.0463

subject

Has Abstract

pub_date

1999-04-13 00:00:00

pages

264-8

issue

2

eissn

0006-291X

issn

1090-2104

pii

S0006-291X(99)90463-1

journal_volume

257

pub_type

杂志文章

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