The alteration of insulin-like growth factor I (IGF-I) and its binding proteins (IGFBP) and their effects on proliferation and differentiation of murine bone marrow-derived macrophage (BMM) precursors were investigated. Bone marrow cells exposed to 20% L929-fibroblast conditioned medium (LCM) were cultured in serum-free medium for 24 h. Western ligand blotting (WLB) analysis detected four bands in all samples. 41-kDa and 30-kDa bands were detected after 12 h and remained constant during BMM differentiation. The 28-kDa and 25-kDa proteins were almost undetectable until day 2, but accumulated significantly from day 3 to day 7. Immunoblotting analysis verified these two bands as IGFBP-4. Northern blotting analyses detected both IGFBP-4 and IGFBP-3 mRNA in the cells. The 41-kDa protein was postulated to be IGFBP-3 in a glycosylated form. The identity of the 30-kDa band is not known. Northern blotting analysis showed that IGF-I mRNA level increased in a time-dependent manner until day 3, and decreased thereafter during BMM differentiation. The effect of IGF-I and its analogs on cell proliferation was studied by ($ sp3$H) thymidine incorporation. IGF-I and its analogs enhanced cell proliferation of freshly isolated bone marrow cells. Both IGF-I and long R$ sp3$ IGF-I, but not des(1-3)IGF-I, continued to exert a stimulating effect on day 1, although to a lesser extent. The effect of IGF-I and its analogs on BMM differentiation was studied by checking morphology, non-specific esterase-1 (NSE-1) activity, and mannose receptor expression. No significant differences in morphology and NSE-1 activity were observed among the treatment groups. There was no difference of mannose receptor expression on day 4 between the IGF-I group and the control cells, whereas long R${ sp3}$ and des(1-3)IGF-I increased the receptor number by 260% and 228% respectively, with less increased K$ rm sb{d}$ values. (Abstract shortened by UMI.)

Includes bibliographical references. / 1 v. (various foliations) : ill. ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Indicates that retarded fetal growth in sheep, associated with restricted supply of substrates to the fetus, is accompanied by reduced concentrations of insulin-like growth factor I in fetal blood and its decreased production in several major fetal tissues. / Thesis (Ph.D.)--University of Adelaide, Dept. of Obstetrics and Gynaecology, 1995

Bibliography : leaves 79-101 / xix, 101, [54] leaves, [12] leaves of plates : ill ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Thesis (Ph.D.)--University of Adelaide, Dept. of Biochemistry, 1992

Thesis (M.D.)--Dept. of Surgery, University of Adelaide, 2001? / Includes bibliography (leaves 191-219).

Thesis (Ph.D.)--University of Melbourne, Institute of Land and Food Resources, 2004. / Typescript (photocopy). Includes bibliographical references.

Thesis (M.S.)--West Virginia University, 2004. / Title from document title page. Document formatted into pages; contains iv, 124 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 82-124).

Thesis (Ph. D.)--University of Missouri-Columbia, 2000. / Typescript. Vita. Includes bibliographical references (leaves 185-198). Also available on the Internet.

Thesis (Ph.D.) - University of Queensland, 2005. / Includes bibliography.

Thesis (M.S.)--South Dakota State University, 2005. / Includes bibliographical references (leaves 42-49). Also available online (PDF file) by a subscription to the set or by purchasing the individual file.

Thesis (M.S.)--South Dakota State University, 2005. / Includes bibliographical references (leaves 42-49).