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Published on: June 23, 2011
Algal lectins as potential HIV microbicide candidates
Dana Huskens1, Dominique Schols1
1Rega Institute for Medical Research, KU Leuven, Minderbroedersstraat 10, B-3000 Leuven, Belgium.
Marine Drugs
|August 2, 2012
Summary
Algal lectins, a type of carbohydrate-binding agent, show potent anti-Human Immunodeficiency Virus (HIV) activity. These agents are promising topical microbicide candidates for preventing HIV transmission.
Area of Science:
- Biochemistry
- Virology
- Immunology
Background:
- Topical microbicides offer a strategy to reduce Human Immunodeficiency Virus (HIV) spread.
- Carbohydrate-binding agents (CBAs) targeting high mannose carbohydrates on HIV envelopes exhibit potent anti-HIV activity.
Purpose of the Study:
- To review the potential of algal lectins as topical microbicides against HIV.
- To focus on structural properties, carbohydrate specificity, antiviral activity, safety, and resistance patterns of these agents.
Main Methods:
- Review of existing literature on algal lectins with anti-HIV activity.
- Analysis of structural properties and carbohydrate specificity.
- Evaluation of antiviral efficacy against cell-free and cell-associated HIV.
- Assessment of safety profiles and viral resistance.
Main Results:
- Several algal lectins (e.g., cyanovirin-N, griffithsin) demonstrate potent inhibition of HIV infection and transmission.
- These agents prevent both cell-free virus infection and cell-to-cell transmission.
- Algal lectins show activity against other enveloped viruses and possess favorable safety profiles.
Conclusions:
- Algal lectins are promising candidates for topical microbicide development to prevent HIV sexual transmission.
- Their specific targeting of viral envelope carbohydrates and broad-spectrum activity warrant further investigation.
