Newborn mice homozygous for a targeted disruption of insulin-like growth factor gene (Igf-1) exhibit a growth deficiency similar in severity to that previously observed in viable Igf-2 null mutants (60% of normal birthweight). Depending on genetic background, some of the Igf-1(-/-) dwarfs die shortly after birth, while others survive and reach ...
J P, Liu +4 more
openaire +4 more sources
Insulin-Like Growth Factor (IGF) Binding Protein-3 Inhibits Type 1 IGF Receptor Activation Independently of Its IGF Binding Affinity [PDF]
Insulin-like growth factor binding proteins (IGFBPs) regulate the cellular actions of the IGFs owing to their strong affinities, which are equal to or stronger than the affinity of the type 1 IGF receptor (IGF-IR), the mediator of IGF signal transduction.
J M, Ricort, M, Binoux
openaire +3 more sources
Insulin-like Growth Factor-1 (IGF-1) is involved in the normal development and survival of retinal cells. Low-density lipoprotein Receptor-related Protein-1 (LRP1) plays a key role on the regulation of several membrane proteins, such as the IGF-1 ...
Virginia Actis Dato +2 more
doaj +1 more source
Insulin-Like Growth Factor (IGF) Signaling through Type 1 IGF Receptor Plays an Important Role in Remyelination [PDF]
We examined the role of IGF signaling in the remyelination process by disrupting the gene encoding the type 1 IGF receptor (IGF1R) specifically in the mouse brain by Cre-mediated recombination and then exposing these mutants and normal siblings to cuprizone.
Jeffrey L, Mason +4 more
openaire +2 more sources
Membrane-associated insulin-like growth factor (IGF) binding structures in placental cells [PDF]
The biological activities of IGF-I and –II are mediated mainly by the type 1 IGF receptor (IGF 1R) and controlled by their interaction with soluble proteins, the IGF binding proteins (IGFBPs). Although there is a growing body of evidence that some IGFBPs
Masnikosa Romana M. +2 more
doaj +3 more sources
Zinc partitions IGFs from soluble IGF binding proteins (IGFBP)-5, but not soluble IGFBP-4, to myoblast IGF type 1 receptors [PDF]
Zinc (Zn(2+)), a multifunctional micronutrient, was recently shown to lower the affinity of cell-associated insulin-like growth factor (IGF) binding protein (IGFBP)-3 and IGFBP-5 for both IGF-I and IGF-II, but to increase the affinity of the cell surface type 1 IGF receptor (IGF-1R) for the same two ligands. However, there is a need for data concerning
R H, McCusker, J, Novakofski
openaire +2 more sources
The IGF/Insulin-IGFBP Axis in Corneal Development, Wound Healing, and Disease
The insulin-like growth factor (IGF) family plays key roles in growth and development. In the cornea, IGF family members have been implicated in proliferation, differentiation, and migration, critical events that maintain a smooth refracting surface that
Whitney L. Stuard +2 more
doaj +1 more source
Radioresistant laryngeal cancers upregulate type 1 IGF receptor and exhibit increased cellular dependence on IGF and EGF signalling [PDF]
AbstractObjectivesPatients failing radiotherapy for laryngeal squamous cell carcinoma (LSCC) often require salvage total laryngectomy which has major functional consequences, highlighting a need for biomarkers of radiotherapy resistance. In other tumour types, radioresistance has been linked to epidermal growth factor receptor (EGFR) and type 1 insulin‐
Ali Qureishi +6 more
openaire +3 more sources
Therapeutic Targeting of the IGF Axis
The insulin like growth factor (IGF) axis plays a fundamental role in normal growth and development, and when deregulated makes an important contribution to disease.
Eliot Osher, Valentine M. Macaulay
doaj +1 more source
Insulin-Like Growth Factor II (IGF-II) Is More Potent Than IGF-I in Stimulating Cortisol Secretion from Cultured Bovine Adrenocortical Cells: Interaction with the IGF-I Receptor and IGF-Binding Proteins [PDF]
Although the stimulating effect of insulin-like growth factor I (IGF-I) on adrenal steroidogenesis has been well established, the role of IGF-II in the adult adrenal gland remains unknown.
Engelhardt, Dieter +3 more
core +1 more source

