Elements DNA
Published research · Hormone

IGF1-LR3

83-residue IGF-1 analog, 1 mg lyophilized vial

8 papers · 2001–2025 · 7 journals

What the research explores

The analog exists to answer a methodological problem, and most of its literature reflects that. Areas of study include:

  • IGFBP interaction — comparative binding of the modified and native sequences to the six IGF binding proteins.
  • IGF-1 receptor engagement and downstream PI3K/Akt and MAPK signaling in cell culture.
  • Receptor cross-talk with the insulin receptor and hybrid receptor forms, where selectivity is a persistent question.
  • Use as a defined media component in serum-free cell culture, where a binding-protein-resistant growth factor gives more reproducible conditions.
  • Protein stability in solution and across freeze-thaw.

Supplied as a laboratory reagent. We make no claim about effects in any organism.

References

A reference list, not evidence. Inclusion means a paper discusses the compound — not that it supports any use, and not that it describes this product.

  1. 2025

    1. Revolutionary decellularized Alstroemeria stem-based nerve conduit integrated with GelMA and controlled IGF-1 LR3 release for enhanced rat sciatic nerve regeneration

      Yavuz E, Sağır MS, Ercan A, et al.

      International journal of biological macromolecules

      PMID 41015370doi 10.1016/j.ijbiomac.2025.147888

    2. IGF-1 LR3 does not promote growth in late-gestation growth-restricted fetal sheep

      White A, Stremming J, Wesolowski SR, et al.

      American journal of physiology. Endocrinology and metabolism

      PMID 39679943doi 10.1152/ajpendo.00259.2024

  2. 2023

    1. Recombinant expression of IGF-1 and LR3 IGF-1 fused with xylanase in Pichia pastoris

      Lu Z, Liu N, Huang H, et al.

      Applied microbiology and biotechnology

      PMID 37261455doi 10.1007/s00253-023-12606-0

    2. Attenuated glucose-stimulated insulin secretion during an acute IGF-1 LR3 infusion into fetal sheep does not persist in isolated islets

      White A, Stremming J, Brown LD, et al.

      Journal of developmental origins of health and disease

      PMID 37114757doi 10.1017/S2040174423000090

  3. 2021

    1. IGF-1 infusion to fetal sheep increases organ growth but not by stimulating nutrient transfer to the fetus

      Stremming J, Heard S, White A, et al.

      American journal of physiology. Endocrinology and metabolism

      PMID 33427051doi 10.1152/ajpendo.00453.2020

  4. 2020

    1. Coronary vascular growth matches IGF-1-stimulated cardiac growth in fetal sheep

      Jonker SS, Giraud GD, Chang EI, et al.

      FASEB journal : official publication of the Federation of American Societies for Experimental Biology

      PMID 32573852doi 10.1096/fj.202000215R

  5. 2007

    1. Effects of IGF-I bioavailability on bovine preantral follicular development in vitro

      Thomas FH, Campbell BK, Armstrong DG, et al.

      Reproduction (Cambridge, England)

      PMID 17636166doi 10.1530/REP-06-0382

  6. 2001

    1. Physicochemical characteristics of LR3-IGF1 protein inclusion bodies: electrophoretic mobility studies

      Wangsa-Wirawan ND, O'Neill BK, Middelberg AP

      Biotechnology progress

      PMID 11485445doi 10.1021/bp010058x

For laboratory and research use only · Not for human or veterinary consumption · Not evaluated by the FDA