Conference Proceedings

Parathyroid hormone-related protein (PTHrP) in cartilaginous and bony fish tissues

MK Trivett, RA Officer, JG Clement, TI Walker, JM Joss, PM Ingleton, TJ Martin, JA Danks

JOURNAL OF EXPERIMENTAL ZOOLOGY | WILEY-LISS | Published : 1999

Abstract

Tissues from a range of fish were examined for the presence of parathyroid hormone-related protein (PTHrP) to investigate PTHrP protein distribution and PTHrP gene expression in jawless fish, cartilaginous fish, and bony fish. Immunoreactive PTHrP was localized using antisera to N-terminal and mid-molecule regions of human PTHrP and PTHrP gene expression examined using a digoxigenin labeled riboprobe to a conserved region of the mammalian PTHrP gene. In all of the fish studied, PTHrP protein and messenger RNA (mRNA) were localized to the skin, kidney, and skeletal muscle, following the pattern seen in higher vertebrates. Additional sites of localization for both protein and mRNA included gil..

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