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Updated: May 22, 2026

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Immunofluorescence to Monitor the Cellular Uptake of Human Lactoferrin and its Associated Antiviral Activity Against the Hepatitis C Virus
Published on: October 1, 2015
Lactoferrin--50 years on.
1Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow G12 8QQ, Scotland, UK. jhb1h@clinmed.gla.ac.uk
Summary
Lactoferrin, an iron-binding protein, has been studied for 50 years. This review assesses its proposed functions, including iron absorption and antimicrobial activity, and its resistance to digestion.
Area of Science:
- Biochemistry
- Immunology
- Nutritional Science
Background:
- Lactoferrin, an iron-binding glycoprotein, was first isolated 50 years ago.
- Early research suggested roles in iron absorption, antimicrobial activity, and inflammation-related hyposideraemia.
- Its structural similarity to transferrin guided initial functional hypotheses.
Purpose of the Study:
- To evaluate the validity of early proposed functions of lactoferrin.
- To explore potential mechanisms underlying lactoferrin's diverse functions.
- To review lactoferrin's gastrointestinal stability and identify future research directions.
Main Methods:
- Literature review and critical analysis of existing research on lactoferrin.
- Assessment of experimental evidence supporting proposed lactoferrin functions.
- Evaluation of studies on lactoferrin's stability during digestion.
Main Results:
- Many early hypotheses regarding lactoferrin's functions have been supported by subsequent research.
- Lactoferrin exhibits significant resistance to digestion in the gastrointestinal tract.
- Mechanisms for various proposed functions are increasingly understood.
Conclusions:
- Lactoferrin possesses a wide range of functions beyond initial proposals.
- Its stability in the gut enhances its potential biological activity.
- Further research is warranted to fully elucidate lactoferrin's therapeutic potential.
