Adipogenic and Anti-Adipogenic Factors in the Pituitary and Other Organs

Adipose conversion of cultured 3T3 cells is known to depend on an adipogenic factor present in serum. In the presence of this factor, extracts of different organs were found to inhibit the adipose conversion. The most active extracts were derived from brain, uterus, and pituitary, but other organs a...

Full description

Saved in:
Bibliographic Details
Published in:Proceedings of the National Academy of Sciences - PNAS 1981-06, Vol.78 (6), p.3969-3972
Main Authors: Hayashi, I., Nixon, T., Morikawa, M., Green, H.
Format: Article
Language:English
Subjects:
3T3 cells
Adipocytes
Adipose Tissue - cytology
Adipose Tissue - physiology
Animals
Cattle
Cell Differentiation - drug effects
Cell growth
Cultured cells
Dehydrogenases
Enzymes
Glycerophosphates
Growth Substances - pharmacology
Hormones
Human organs
Pituitary Gland - physiology
Ungulates
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Adipose conversion of cultured 3T3 cells is known to depend on an adipogenic factor present in serum. In the presence of this factor, extracts of different organs were found to inhibit the adipose conversion. The most active extracts were derived from brain, uterus, and pituitary, but other organs also possessed appreciable activity. Fibroblast growth factor partially purified from both brain and pituitary was much more active in suppressing adipose conversion than were crude extracts of the corresponding organs. Purified platelet-derived growth factor was also an effective inhibitor. Of all the tissue extracts tested, only pituitary possessed, in addition to the inhibitory activity, an adipogenic factor similar to that demonstrated previously in serum. This was revealed at concentrations of extract too low for the inhibitory factor to be effective. Under these conditions the pituitary extract had a specific adipogenic activity orders of magnitude higher than that of serum. We suggest that the adipogenic factor of serum may originate in the pituitary.
ISSN:0027-8424
1091-6490
DOI:10.1073/pnas.78.6.3969