Benzoylbenzimidazole-based selective inhibitors targeting Cryptosporidium parvum and Toxoplasma gondii calcium-dependent protein kinase-1
作者:Zhongsheng Zhang、Kayode K. Ojo、Steven M. Johnson、Eric T. Larson、Penqing He、Jennifer A. Geiger、Alejandro Castellanos-Gonzalez、A. Clinton White、Marilyn Parsons、Ethan A. Merritt、Dustin J. Maly、Christophe L.M.J. Verlinde、Wesley C. Van Voorhis、Erkang Fan
DOI:10.1016/j.bmcl.2012.06.050
日期:2012.8
Calcium-dependent protein kinase-1 (CDPK1) from Cryptosporidium parvum (CpCDPK1) and Toxoplasma gondii (TgCDPK1) have become attractive targets for discovering selective inhibitors to combat infections caused by these protozoa. We used structure-based design to improve a series of benzoylbenzimidazole-based compounds in terms of solubility, selectivity, and potency against CpCDPK1 and TgCDPK1. The best inhibitors show inhibitory potencies below 50 nM and selectivity well above 200-fold over two human kinases with small gatekeeper residues. (c) 2012 Elsevier Ltd. All rights reserved.
HERPES VIRUS-BASED COMPOSITIONS AND METHODS OF USE IN THE PRENATAL AND PERINATAL PERIODS
申请人:THE UNIVERSITY OF ROCHESTER
公开号:EP1903873A2
公开(公告)日:2008-04-02
Herpes Virus-Based Compositions and Methods of Use in the Prenatal and Perinatal Periods
申请人:Federoff Howard J.
公开号:US20080226601A1
公开(公告)日:2008-09-18
Disclosed are compositions and methods for reducing the severity of a birth defect in a mammal by exposing the mammal (e.g., in utero) to a herpes virus amplicon particle comprising a cis element-flanked transgene and a sequence encoding a transposase. Upon expression, the transposase inserts the transgene into the genome of a cell (e.g., a neuron) within the mammal and the transgene expresses a polypeptide or RNA that compensates for a protein or gene defect that is causally associated with the birth defect.
METHODS TO ACCELERATE THE ISOLATION OF NOVEL CELL STRAINS FROM PLURIPOTENT STEM CELLS AND CELLS OBTAINED THEREBY
申请人:West Michael D.
公开号:US20100184033A1
公开(公告)日:2010-07-22
Aspects of the present invention relate to methods to differentiate pluripotent primordial stem cells, such as human embryonic stem (“hES”) cells, human embryonic germ (“hEG”) cells, human embryo-derived (“hED”) cells and human embryonal carcinoma (“hEC”) cells, to obtain subpopulations of cells from heterogeneous mixtures of cells, wherein the subpopulation of cells possess reduced differentiation potential compared to the original pluripotent stem cells and where the subpopulation is capable of being propagated 20 or more population doublings. This invention also provides novel compositions of such subpopulations of cells and methods to propagate and differentiate said cells.
Compositions And Methods For Treating Toxoplasmosis, Cryptosporidiosis, And Other Apicomplexan Protozoan Related Diseases
申请人:VAN VOORHIS Wesley C.
公开号:US20130018040A1
公开(公告)日:2013-01-17
Compositions and methods for the treatment of toxoplasmosis, caused by the infectious eukaryotic parasite
Toxoplasma gondii
(
T. gondii
) and for the treatment of cryptosporidiosis, caused by the infectious eukaryotic parasites
Cryptosporidium parvum
(
C. parvum
) and
Cryptosporidium hominus
(
C. hominus
) are described. In particular, the present disclosure is directed to compositions and methods for inhibiting either
T. gondii
calcium dependent protein kinases (TgCDPKs) or
C. parvum
and
C. hominus
calcium dependent protein kinases (CpCDPKs) using pyrazolopyrimidine and/or imidazo[1,5-a]pyrazine inhibitors, of the formula,
wherein the variables X, Y, Z, L, R
1
, and R
3
are defined herein.