<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Maurya, Indresh Kumar</style></author><author><style face="normal" font="default" size="100%">Pathak, Sarika</style></author><author><style face="normal" font="default" size="100%">Sharma, Monika</style></author><author><style face="normal" font="default" size="100%">Sanwal, Hina</style></author><author><style face="normal" font="default" size="100%">Chaudhary, Preeti</style></author><author><style face="normal" font="default" size="100%">Tupe, Santosh</style></author><author><style face="normal" font="default" size="100%">Deshpande, Mukund V.</style></author><author><style face="normal" font="default" size="100%">Chauhan, Virander Singh</style></author><author><style face="normal" font="default" size="100%">Prasad, Rajendra</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Antifungal activity of novel synthetic peptides by accumulation of reactive oxygen species (ROS) and disruption of cell wall against Candida albicans</style></title><secondary-title><style face="normal" font="default" size="100%">Peptides</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Antifungal peptides</style></keyword><keyword><style  face="normal" font="default" size="100%">Candida albicans</style></keyword><keyword><style  face="normal" font="default" size="100%">Cell wall</style></keyword><keyword><style  face="normal" font="default" size="100%">ROS</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2011</style></year><pub-dates><date><style  face="normal" font="default" size="100%">AUG</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">8</style></number><publisher><style face="normal" font="default" size="100%">ELSEVIER SCIENCE INC</style></publisher><pub-location><style face="normal" font="default" size="100%">360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA</style></pub-location><volume><style face="normal" font="default" size="100%">32</style></volume><pages><style face="normal" font="default" size="100%">1732-1740</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;In the present work, we investigated the antifungal activity of two de novo designed, antimicrobial peptides VS2 and VS3, incorporating unnatural amino acid alpha,beta-dehydrophenylalanine (Delta Phe). We observed that the low-hemolytic peptides could irreversibly inhibit the growth of various Candida species and multidrug resistance strains at MIC(80) values ranging from 15.62 mu M to 250 mu M. Synergy experiments showed that MIC(80) of the peptides was drastically reduced in combination with an antifungal drug fluconazole. The dye PI uptake assay was used to demonstrate peptide induced cell membrane permeabilization. Intracellular localization of the FITC-labeled peptides in Candida albicans was studied by confocal microscopy and FACS. Killing kinetics, PI uptake assay, and the intracellular presence of FITC-peptides suggested that growth inhibition is not solely a consequence of increased membrane permeabilization. We showed that entry of the peptide in Candida cells resulted in accumulation of reactive oxygen species (ROS) leading to cell necrosis. Morphological alteration in Candida cells caused by the peptides was visualized by electron microscopy. We propose that de novo designed VS2 and VS3 peptides have multiple detrimental effects on target fungi, which ultimately result in cell wall disruption and killing. Therefore, these peptides represent a good template for further design and development as antifungal agents. (C) 2011 Elsevier Inc. All rights reserved.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">8</style></issue><custom3><style face="normal" font="default" size="100%">Foreign</style></custom3><custom4><style face="normal" font="default" size="100%">2.434
</style></custom4></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Kulkarni, Roshan R.</style></author><author><style face="normal" font="default" size="100%">Tupe, Santosh G.</style></author><author><style face="normal" font="default" size="100%">Gample, Suvarna P.</style></author><author><style face="normal" font="default" size="100%">Chandgude, Macchindra G.</style></author><author><style face="normal" font="default" size="100%">Sarkar, Dhiman</style></author><author><style face="normal" font="default" size="100%">Deshpande, Mukund V.</style></author><author><style face="normal" font="default" size="100%">Joshi, Swati P.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Antifungal dimeric chalcone derivative kamalachalcone E from Mallotus philippinensis</style></title><secondary-title><style face="normal" font="default" size="100%">Natural Product Research</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">4 `-hydroxyrottlerin</style></keyword><keyword><style  face="normal" font="default" size="100%">antifungal</style></keyword><keyword><style  face="normal" font="default" size="100%">dimeric chalcone</style></keyword><keyword><style  face="normal" font="default" size="100%">kamalachalcone E</style></keyword><keyword><style  face="normal" font="default" size="100%">Mallotus philippinensis</style></keyword><keyword><style  face="normal" font="default" size="100%">rottlerin</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2014</style></year><pub-dates><date><style  face="normal" font="default" size="100%">FEB</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">4</style></number><publisher><style face="normal" font="default" size="100%">TAYLOR &amp; FRANCIS LTD</style></publisher><pub-location><style face="normal" font="default" size="100%">4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND</style></pub-location><volume><style face="normal" font="default" size="100%">28</style></volume><pages><style face="normal" font="default" size="100%">245-250</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;From the red coloured extract (Kamala) prepared through acetone extraction of the fresh whole uncrushed fruits of Mallotus philippinensis, one new dimeric chalcone (1) along with three known compounds 1-(5,7-dihydroxy-2,2,6-trimethyl-2H-1-benzopyran-8-yl)-3-phenyl-2-propen -1-one (2), rottlerin (3) and 4 `-hydroxyrottlerin (4) were isolated. The structure of compound 1 was elucidated by 1D and 2D NMR analyses that included HSQC, HMBC, COSY and ROESY experiments along with the literature comparison. Compounds 1-4 were evaluated for antifungal activity against different human pathogenic yeasts and filamentous fungi. The antiproliferative activity of the compounds was evaluated against Thp-1 cell lines. Compounds 1 and 2 both exhibited IC50 of 8, 4 and 16 mu g/mL against Cryptococcus neoformans PRL518, C. neoformans ATCC32045 and Aspergillus fumigatus, respectively. Compound 4, at 100 mu g/mL, showed 54% growth inhibition of Thp-1 cell lines.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">4</style></issue><work-type><style face="normal" font="default" size="100%">Article</style></work-type><custom3><style face="normal" font="default" size="100%">Foreign</style></custom3><custom4><style face="normal" font="default" size="100%">1.057</style></custom4></record></records></xml>