Multifunctional roles of lactoferrin: a critical overview

Area of Science:

• Biochemistry
• Immunology
• Molecular Biology

Background:

• Lactoferrin (LF) is a transferrin family protein secreted by epithelial cells and neutrophils.
• Initially recognized for iron-binding and bacteriostatic properties in milk.
• Emerging evidence reveals LF as a multifunctional protein with diverse physiological roles.

Purpose of the Study:

• To discuss recent advances in understanding the cellular and molecular functions of lactoferrin.
• To explore the pleiotropic nature of LF beyond its iron-binding capacity.

Main Methods:

• Review of recent scientific literature.
• Analysis of cellular and molecular mechanisms underlying LF functions.

Main Results:

• LF regulates iron homeostasis and defends against microbial infections.
• LF exhibits anti-inflammatory activity and influences cellular growth and differentiation.
• LF plays a role in protecting against cancer development and metastasis.

Conclusions:

• Lactoferrin's biological activities are mediated by both iron binding and specific interactions with receptors and microbial components.
• Understanding LF's multifaceted roles is crucial for its therapeutic applications.