Mecasermin

Also known as: Recombinant IGF-1

Primary growth factor ligand

What is Mecasermin?

Mecasermin is a synthetic peptide that serves as a primary growth factor ligand, classified under the category of Growth Hormone Peptides. It is a recombinant form of insulin-like growth factor 1 (IGF-1) and is primarily utilized in research settings to study its effects on growth and metabolic processes. Mecasermin plays a crucial role in mediating the effects of growth hormone, making it significant in various biological functions.

How It Works

Mecasermin operates by binding to the IGF-1 receptor, which initiates a cascade of signaling pathways that promote cell growth, differentiation, and survival. This binding activates the PI3K/Akt and MAPK pathways, leading to various anabolic effects in tissues. The peptide mimics the action of natural IGF-1, facilitating cellular uptake of glucose and amino acids, which are vital for growth and repair.

Mechanism of Action

  • Receptor Binding: Mecasermin binds to IGF-1 receptors on target cells.
  • Signal Transduction: This binding activates intracellular signaling pathways that regulate growth and metabolism.

Research Uses

Growth Promotion

  • Investigated for its role in stimulating growth in children with growth hormone deficiencies.

Muscle Development

  • Studied for its potential effects on muscle hypertrophy and recovery in various populations.

Metabolic Regulation

  • Explored for its influence on glucose metabolism and insulin sensitivity.

Bone Density Improvement

  • Research indicates potential benefits in enhancing bone density and strength.

Effects

Growth Enhancement

  • Observed increases in height and growth rates in pediatric subjects with deficiencies.

Muscle Mass Increase

  • Reported improvements in lean body mass and muscle strength in clinical studies.

Improved Insulin Sensitivity

  • Studies suggest enhanced insulin sensitivity and better glucose control in subjects.

Bone Health

  • Evidence of increased bone mineral density and improved bone health metrics.

Summary

Mecasermin is a significant peptide in the realm of growth hormone research, primarily functioning as a growth factor ligand. Its mechanisms of action and observed effects make it a valuable subject of study for understanding growth, metabolism, and overall health.

Last updated: Feb 25, 2026