Medicinal Chemistry Research

, Volume 23, Issue 12, pp 5141–5148 | Cite as

Insight into the anti-amyloidogenic activity of polyphenols and its application in virtual screening of phytochemical database

  • Sandipan Chakraborty
  • Soumalee Basu
Original Research


Alzheimer’s Disease (AD) is the most frequent form of neurodegenerative disorder pathologically characterized by the presence of aggregates of Aβ in the region of the brain involved in memory and cognition. Polyphenols commonly found in several daily consumed food items and beverages have been demonstrated to inhibit Aβ aggregation using various biophysical or cell culture-based techniques. Here, insight into the anti-amyloidogenic activity of polyphenols has been explored using 2-D QSAR methodology implemented in CODESSA packages. Interestingly, hydrophobic interactions emerge as a significant descriptor for the recognition of amyloid fibril by polyphenols. Thus, it may be interpreted that highly potent polyphenols capably bind within the hydrophobic core region of the amyloid fibril and, thereby, destabilize the fibril by interrupting the hydrophobic interactions present within the fibril. Highly branched substituents and substituents with high degree of conformational flexibility on the polyphenolic structural scaffold enhance the fibril-destabilizing activity of compounds. In addition, specific electrostatic interaction between amyloid fibril and polyphenol plays a crucial role for the recognition of the fibril by polyphenols. The “application domain” of the derived QSAR model also has been defined, and the derived model has been used to screen a small in-house developed phytochemicals database comprising 200 compounds. 59 phytochemicals have been predicted as highly active anti-amyloidogenic phytochemicals. The modeling strategy is an efficient way to reduce the chemical search space and can selectively mine novel lead anti-amyloidogenic molecule from large chemical databases.


Amyloid beta inhibitor Polyphenols QSAR Application domain Phytochemicals Virtual screening 



Soumalee Basu acknowledges financial support from the Department of Science and Technology, Govt. of West Bengal.

Supplementary material

44_2014_1081_MOESM1_ESM.doc (102 kb)
Supplementary material 1 (DOC 101 kb)


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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  1. 1.Saroj Mohan Institute of TechnologyGuptiparaIndia
  2. 2.School of Biotechnology & Biological SciencesWest Bengal University of TechnologyKolkataIndia
  3. 3.Department of MicrobiologyUniversity of CalcuttaKolkataIndia

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